Cane with seat
12514347 ยท 2026-01-06
Assignee
Inventors
- Huaxing Zhang (Jiangxi, CN)
- Shouwen Meng (Jiangxi, CN)
- Zuohua Liao (Guangdong, CN)
- Xian'e Zhu (Jiangxi, CN)
- Zhuyun Dong (Guangdong, CN)
Cpc classification
A45B5/00
HUMAN NECESSITIES
International classification
Abstract
A cane with a seat includes a support assembly and a seat assembly, where the support assembly includes a support base, a slider, a main rod, and two auxiliary rods; the main rod and the auxiliary rod penetrate through the support base and are rotatably connected to the support base; two opposite ends of each of the main rod and the auxiliary rod are stretched out of the support base; the slider is in sliding fit with the main rod and is configured to drive the support assembly to switch between a collapsed state and an expanded state; the seat assembly includes a main seat surface and two auxiliary seat surfaces; the two auxiliary seat surfaces are rotatably connected to two opposite sides of the main seat surface in one-to-one correspondence; the main seat surface is rotatably connected to the slider.
Claims
1. A cane with a seat, comprising: a support assembly comprising a support base, a slider, a main rod, and two auxiliary rods, wherein the main rod and the auxiliary rods penetrate through the support base and are rotatably connected to the support base; two opposite ends of each of the main and the auxiliary rods are stretched out of the support base; wherein the cane with a seat further comprises a handle connected to an end of the main rod away from the support base; the slider is in sliding fit with the main rod and is configured to drive the support assembly to switch between a collapsed state and an expanded state; in the collapsed state, the two auxiliary rods are collapsed to the main rod; and in the expanded state, the two auxiliary rods intersect at the support base to form an upper included-angle space and a lower included-angle space; the main rod penetrates through either of the upper included-angle space and the lower included-angle space; the two auxiliary rods are rotatably connected to each other, each forming an included angle with the main rod, and being symmetrically located at two opposite sides of the main rod; a seat assembly comprising a main seat surface and two auxiliary seat surfaces, wherein the two auxiliary seat surfaces are rotatably connected to two opposite sides of the main seat surface in one-to-one correspondence; the main seat surface is rotatably connected to the slider; and when the support assembly is switched from the collapsed state to the expanded state, the slider drives the main seat surface to expand, the main seat surface drives the auxiliary seat surface to expand, and ends of the two auxiliary rods, which participate in forming the upper included-angle space and are close to the seat assembly, support the two auxiliary seat surfaces in one-to-one correspondence; and wherein the support assembly further comprises a first connecting rod and two second connecting rods; the first connecting rod comprises one end rotatably connected to the main rod, and another opposite end connected to the main seat surface; a junction between the first connecting rod and the main seat surface, and a junction between the main seat surface and the slider are spaced; ends of the two second connecting rods are rotatably connected to the slider; another opposite ends of the two second connecting rods are rotatably connected to the two auxiliary rods in one-to-one correspondence; each auxiliary rod is provided with a support end for supporting a corresponding auxiliary seat surface of the two auxiliary seat surfaces in the expanded state; a junction between each second connecting rod and a corresponding auxiliary rod of the two auxiliary rods is located between the support base and the support end; the junction between the slider and the main seat surface, a junction between the second connecting rods and the slider, a junction between the first connecting rod and the main rod, and the support base are arranged sequentially along an axial extension direction of the main rod.
2. The cane with a seat according to claim 1, wherein the two auxiliary rods each are an integrated structure.
3. The cane with a seat according to claim 1, wherein the support base comprises a main body and a cover plate that are detachably connected; the main body is provided with three through holes at intervals; and the main rod and the two auxiliary rods penetrate through the three through holes in one-to-one correspondence and are rotatably connected to the main body.
4. The cane with a seat according to claim 3, wherein the support base comprises a clamping ring; the cover plate and the main body enclose a groove extending along a circumferential direction of the main body; the main body is provided with a shaft hole at a bottom of the groove; the shaft hole is configured to penetrate through a rotating shaft to realize rotatable connection of the main rod and the auxiliary rod with the main body; and the clamping ring is limited at the groove and conceals the shaft hole and the rotating shaft.
5. The cane with a seat according to claim 4, wherein the cane with a seat further comprises an elastic member provided in the main rod; the elastic member comprises one end connected to the slider, and another opposite end connected to the main rod; and an amount of elastic deformation of the elastic member in the collapsed state is greater than an amount of elastic deformation of the elastic member in the expanded state, so as to drive the slider to slide along the main rod in the collapsed state, thereby switching to the expanded state.
6. The cane with a seat according to claim 5, wherein the cane with a seat further comprises a lock structure movably connected to the handle; in the collapsed state, the lock structure locks the slider at the main rod; and the lock structure is further capable of unlocking the slider, thereby switching to the expanded state.
7. The cane with a seat according to claim 6, wherein the lock structure comprises a button movably connected to the handle and a clamping member; the clamping member is provided with a clamping portion; a first clamping hole is formed in the main rod; a second clamping hole is formed in the slider; in the collapsed state, the first clamping hole and the second clamping hole communicate to penetrate through the clamping portion, such that the slider is locked at the main rod; and the button is configured for pressing, thereby driving the clamping portion to withdraw from the second clamping hole to unlock the slider.
8. The cane with a seat according to claim 7, wherein the lock structure comprises a restoration member abutting against the main rod and the clamping member; and after the second clamping hole moves from a misplaced state to an aligned state relative to the first clamping hole, the restoration member drives the clamping portion to penetrate into the second clamping hole.
9. The cane with a seat according to claim 4, wherein the handle comprises a gripping portion, an adjusting sleeve connected to the gripping portion, and an adjusting member detachably connected to the adjusting sleeve; the main rod penetrates through the adjusting sleeve and is provided with at least two first adjusting holes arranged at intervals along an axial direction of the main rod; a second adjusting hole is formed in the adjusting sleeve; the adjusting member penetrates through the second adjusting hole and one of the first adjusting holes, such that positions of the main rod and the handle are fixed relatively; and after the adjusting member is detached from the second adjusting hole, the gripping portion is capable of driving the adjusting sleeve to move relative to the main rod, such that the second adjusting hole is aligned to any one of remaining first adjusting holes, thereby penetrating through the adjusting member and adjusting the relative positions of the gripping portion and the main rod.
10. The cane with a seat according to claim 9, wherein the adjusting sleeve comprises an inner cartridge connected to the gripping portion, and an outer cartridge connected to the gripping portion and sleeved on the inner cartridge; the adjusting member is detachably connected to the outer cartridge and the inner cartridge; an end of the main rod close to the handle penetrates through a space between the inner cartridge and the outer cartridge; the outer cartridge is provided with the second adjusting hole; the inner cartridge is provided with an auxiliary hole aligned to the second adjusting hole; and the adjusting member penetrates through the auxiliary hole, the second adjusting hole and one of the first adjusting holes, such that the positions of the main rod and the handle are fixedly relatively.
11. The cane with a seat according to claim 9, wherein the handle comprises a hook connected to the gripping portion; an accommodating groove is formed in the gripping portion; a rotating post is provided at a bottom of the accommodating groove; an opening penetrating into the rotating post and a waist-shaped hole communicating with the opening are formed at one end of the hook; the hook has a buckled state and an opened state relative to the gripping portion; in the buckled state, the hook is buckled to the accommodating groove, and the rotating post abuts against one end of the waist-shaped hole; and in the opened state, an end of the hook away from the rotating post is separated from the gripping portion, and forms a hanging space with the gripping portion, and the rotating post abuts against another opposite end of the waist-shaped hole.
12. The cane with a seat according to claim 4, wherein the cane with a seat comprises an auxiliary assembly; the auxiliary assembly comprises a first swing arm and a second swing arm that are rotatably connected to the main seat surface; the slider is provided with a protrusion; the two auxiliary seat surfaces each are provided with an abutment portion; and when the support assembly is switched from the collapsed state to the expanded state, the protrusion presses the first swing arm and the second swing arm, and drives the first swing arm and the second swing arm to rotate relative to the main seat surface, the first swing arm presses the abutment portion at one side, and the second swing arm presses the abutment portion at the other side, such that the two auxiliary seat surfaces are expanded relative to the main seat surface.
13. The cane with a seat according to claim 12, wherein the auxiliary assembly comprises a return member connected to the main seat surface; the return member is connected to at least one of the first swing arm and the second swing arm; and when the support assembly is switched from the expanded state to the collapsed state, the return member drives the first swing arm and the second swing arm for restoration.
14. The cane with a seat according to claim 12, wherein the first swing arm comprises a body and a bearing portion that are molded integrally; the bearing portion is connected to one end of the body and is oblique to a length extension direction of the body; another opposite end of the body is provided with a guiding surface; the guiding surface is a plane and is oblique relative to a length direction of the body; the body is rotatably connected to the main seat surface; and when the support assembly is switched from the collapsed state to the expanded state, the protrusion presses the bearing portion and drives the body to rotate relative to the main seat surface, and the guiding surface presses the abutment portion corresponding to the first swing arm, so as to drive the corresponding auxiliary seat surface to rotate relative to the main seat surface.
15. The cane with a seat according to claim 14, wherein the first swing arm comprises a limiting portion integrally molded with the body; the limiting portion protrudes from the guiding surface along the length extension direction of the body; and when the protrusion presses the bearing portion, the protrusion limits a range of movement of the body.
16. The cane with a seat according to claim 4, wherein in a direction perpendicular to a length extension direction of the main rod, two opposite sides of the slider each are provided with a hanging hole; and the hanging hole is configured to connect a rope or hang an article.
17. The cane with a seat according to claim 4, wherein one of the two auxiliary seat surfaces is provided with a clamping block, and the other is provided with a clamping groove; and in the collapsed state, the clamping block is clamped into the clamping groove, and the ends of the collapsed auxiliary rods close to the seat assembly are accommodated in a space enclosed by the main seat surface and the auxiliary seat surfaces.
18. The cane with a seat according to claim 1, wherein the first connecting rod comprises a swing rod rotatably connected to the main seat surface, and a support rod rotatably connected to the swing rod; the support rod is rotatably connected to the main rod; the main seat surface is provided with a limiting groove for limiting a range of rotation of the swing rod; and when the support assembly is switched between the collapsed state and the expanded state, the swing rod drives the support rod to swing relative to the main seat surface.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
(1) To describe the technical solutions in the embodiments of the present disclosure or in the prior art more clearly, the following briefly describes the accompanying drawings required for describing the embodiments or the prior art. Apparently, the accompanying drawings in the following description show merely some embodiments of the present disclosure, and a person of ordinary skill in the art may still derive other drawings from these accompanying drawings without creative efforts.
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REFERENCE NUMERALS
(23) 10: cane with a seat, 100: support assembly, 110: support base, 111: main body, 111a: through hole, 111b: groove, 111c: shaft hole, 113: cover plate, 115: clamping ring, 116: rotating shaft, 120: slider, 120a: second clamping hole, 120b: hanging hole, 121: protrusion, 123: sleeve, 125: connecting pin, 130: main rod, 130a: through groove, 130b: first clamping hole, 130c: first adjusting hole, 135: limiting sleeve, 140: auxiliary rod, 140a: gap, 140b: upper included-angle space, 140c: lower included-angle space, 141: pin shaft, 143: torsional spring, 145: support end, 150: handle, 151: gripping portion, 151a: accommodating groove, 153: adjusting sleeve, 153a: second adjusting hole, 153b: auxiliary hole, 1531: inner cartridge, 1533: outer cartridge, 155: adjusting member, 157: hook, 157a: opening, 157b: waist-shaped hole, 158: rotating post, 160: first connecting rod, 161: swing rod, 163: support rod, 170: second connecting rod, 180: elastic member, 190: lock structure, 191: button, 193: clamping member, 1931: clamping portion, 195: restoration member, 197: rope, 200: seat assembly, 210: main seat surface, 210a: limiting groove, 220: auxiliary seat surface, 220a: clamping groove, 221: clamping block, 223: abutment portion, 300: auxiliary assembly, 310: first swing arm, 311: main body, 3111: guiding surface, 313: bearing portion, 315: limiting portion, 320: second swing arm, and 330: return member.
DETAILED DESCRIPTION OF THE EMBODIMENTS
(24) The following detailed description on preferred embodiments is a preferred mode for implementing the present disclosure. The description does not constitute any limitation, but is intended to illustrate general principles of the present disclosure.
(25) It is to be understood that for ease of understanding on the present disclosure, terms mounted, connected, coupled and provided in the following description refer to connection relationships in the drawings. For example, connected may be permanent connection or detachable connection. In addition, connected may also be direct connection or indirect connection, or connection through other auxiliary components. Hence, the above terms should not be limitations to actual connection of each component in the present disclosure.
(26) It should be understood that terms length, width, top, bottom, front, rear, left, right, vertical, horizontal, upper, lower, outside, and inside indicate orientations or positional relationships in the accompanying drawings, and are intended to understand the present disclosure easily, rather than limit actual positions or orientations of the present disclosure. Hence, the above terms should not be limitations to actual positions of components in the present disclosure.
(27) It should be understood that terms first, second, a, an and the refer to at least one or one or more in the embodiment. Particularly, the term a may refer to one in an embodiment, and may refer to more than one in another embodiment. Hence, the above terms should not be limitations to actual numbers of components in the present disclosure.
(28) To facilitate the understanding of the present disclosure, the present disclosure is described more completely below with reference to the accompanying drawings. Preferred embodiments of the represent disclosure are shown in the drawings. However, the present disclosure is embodied in various forms without being limited to the embodiments set forth herein. On the contrary, these embodiments are provided such that the disclosure of the present disclosure can be understood thoroughly and comprehensively.
(29) Referring to
(30) Specifically, the support base 110 may include a main body 111 and a cover plate 113 that are detachably connected. The main body 111 is provided with three through holes 111a at intervals. The main rod 130 and the two auxiliary rods 140 penetrate through the three through holes 111a in one-to-one correspondence and are rotatably connected to the main body 111. The through holes 111a can provide a space for swing of the main rod 130 and the auxiliary rod 140 relative to the support base 110, while limiting a range of movement of the main rod 130 and the auxiliary rod 140. The main rod 130 and the two auxiliary rods 140 can be kept stable in an expanded state and a collapsed state. The main body 111 may be molded by injection to improve the molding efficiency, and may have a relatively large wall thickness to improve the supporting stability. In assembly, the main rod 130 and the auxiliary rod 140 may penetrate through the through hole 111a of the main body 111 and the cover plate 113. By this time, the cover plate 113 and the main body 111 may be spaced to expose an internal space of the main body 111, so as to facilitate assembly of the rotating shaft to the main body 111 to realize rotatable connection of the main rod 130 and the auxiliary rod 140 with the main body 111. Upon the assembly of the main body 111 with the main rod 130 and the auxiliary rod 140, the cover plate 113 is used to cover the internal space of the main body 111. For example, the cover plate 113 is reliably fixed on the main body 111 through a fastener such as a bolt, thereby reliably limiting the main rod 130 and the auxiliary rod 140 on the support base 110 to improve the convenience in the assembly.
(31) In some implementations, the support base 110 may include a clamping ring 115. The cover plate 113 and the main body 111 enclose a groove 111b extending along a circumferential direction of the main body 111. A shaft hole 111c is formed in a bottom of the groove 111b. The shaft hole 111c is configured to penetrate through a rotating shaft 116 to realize the rotatable connection of the main rod 130 and the auxiliary rod 140 with the main body 111. The clamping ring 115 is limited in the groove 111b and conceals the shaft hole 111c and the rotating shaft 116. The clamping ring 115 may be of a circumferentially closed annular shape, and may be assembled to the main body 111 prior to the cover plate 113. Two protrusive edges of the groove 111b in an axial direction of the main rod 130, namely a protrusive edge of the main body 111 and an edge of the cover plate 113, can prevent easy separation of the clamping ring 115 from the main body 111. The clamping ring 115 can prevent easy separation of the rotating shaft 116 from the main body 111 and take as a decorative effect. In the assembly of the main rod 130 and the auxiliary rod 140 with the support base 110, the main rod 130 and the auxiliary rod 140 may penetrate through the through hole 111a of the main body 111, the clamping ring 115 and the cover plate 113 sequentially, such that the clamping ring 115 is limited on the main body 111 reliably, and not separated from the main body 111 easily.
(32) The slider 120 may be of a circumferentially closed tubular shape. Sleeved on the main rod 130, the slider is in sliding fit with the main rod 130, and is configured to drive the support assembly 100 to switch between the collapsed state and the expanded state. In combination with
(33) The seat assembly 200 may include a main seat surface 210 and two auxiliary seat surfaces 220. The two auxiliary seat surfaces 220 are rotatably connected to two opposite sides of the main seat surface 210 in one-to-one correspondence. The main seat surface 210 is rotatably connected to the slider 120. When the support assembly 100 is switched from the collapsed state to the expanded state, the slider 120 drives the main seat surface 210 to expand, the main seat surface 210 drives the auxiliary seat surface 220 to expand, and ends of the two auxiliary rods 140 close to the seat assembly 200 support the two auxiliary seat surfaces 220 in one-to-one correspondence. When the support assembly 100 is switched from the expanded state to the collapsed state, the slider 120 drives the main seat surface 210 to collapse, the main seat surface 210 drives the auxiliary seat surface 220 to collapse, and the ends of the two auxiliary rods 140 close to the seat assembly 200 can be gradually separated from the two auxiliary seat surfaces 220.
(34) It may be understood that the term symmetric in engineering technology cannot be strictly deemed as a concept in geometric meaning, and should be understood with considerations to the engineering error, and the case where the two auxiliary rods 140 are not symmetric relative to the main rod 130 within a range of the engineering error should not be excluded from the protection scope of the present disclosure.
(35) In some implementations, the main rod 130 and the auxiliary rod 140 are a hollow tubular structure, and may be an integrated structure, namely the whole tube is molded integrally. The main rod 130 and the auxiliary rod 140 may be made of an aluminum alloy material. The whole cane with a seat 10 has a relatively small weight and is carried by the elderly conveniently. Meanwhile, the main rod 130 and the auxiliary rod 140 have a high structural strength, so as to support the body weight of the elderly reliably in the expanded state to ensure the safety in use.
(36) A handle 150 may further be provided at one end of the main rod 130. The handle 150 can form a circumferentially closed space, so as to be held by a palm of the user conveniently, and facilitate use of the cane with a seat 10. Further, in combination with
(37) Exemplarily, referring to
(38) Meanwhile, referring to
(39) Further, referring also to
(40) Referring also to
(41) In combination with
(42) Further, referring to
(43) Referring to
(44)
(45) When the support assembly 100 is switched from the collapsed state to the expanded state, the protrusion 121 presses the first swing arm 310 and the second swing arm 320, and drives the first swing arm 310 and the second swing arm 320 to rotate relative to the main seat surface 210. The first swing arm 310 presses the abutment portion 223 at one side, and the second swing arm 320 presses the abutment portion 223 at the other side, such that the two auxiliary seat surfaces 220 are expanded relative to the main seat surface 210. In the collapsed state, the main seat surface 210, the auxiliary seat surface 220, the main rod 130 and the auxiliary rod 140 may be approximately parallel to each other. When the slider 120 slides to the support base 110 along the main rod 130, it is relatively difficult to expand the auxiliary seat surface 220 with a lateral force of the support end 145 of the auxiliary rod 140 in an initial stage of expansion, and there is always a further need to pull the free end of the main seat surface 210 away from the main rod 130 with the hand. However, with one hand holding the main rod 130 or the handle 150, and one hand pushing the slider 120, it is hard to take the main seat surface 210 into account to cause unsmooth expansion. The auxiliary assembly 300 may be helpful to expand the auxiliary seat surface 220 relative to the main seat surface 210, thereby expanding the seat assembly 200 more smoothly and improving the convenience in use.
(46) Specifically, referring to
(47) Particularly, in some implementations, the first swing arm 310 and the second swing arm 320 may be engaged with each other through an incomplete gear to realize synchronous swing of the first swing arm and the second swing arm relative to the main seat surface 210, thereby realizing synchronous movement of the two auxiliary seat surfaces 220 to improve the convenience in use.
(48) The first swing arm 310 and the second swing arm 320 have a same structure and a same working principle. Herein, the first swing arm 310 is used as an example for description. Referring to
(49) Further, in combination with
(50) Referring to
(51) Further, the cane with a seat 10 may include a lock structure 190 movably connected to the handle 150. In the collapsed state, the lock structure 190 locks the slider 120 at the main rod 130. The lock structure 190 can further unlock the slider 120, thereby switching to the expanded state. Specifically, the lock structure 190 includes a button 191 movably connected to the handle 150 and a clamping member 193. An end of the clamping member 193 close to the support base 110 is provided with a protrusive clamping portion 1931. In combination with
(52) In some implementations, the lock structure 190 may further include a restoration member 195 abutting against the main rod 130 and the clamping member 193. After the second clamping hole 120a moves from a misplaced state to an aligned state relative to the first clamping hole 130b, the restoration member 195 drives the clamping portion 1931 to penetrate into the second clamping hole 120a to realize automatic clamping between the clamping portion 1931 and the slider 120. The restoration member 195 is not limited to a spring, and may also be an elastic piece or an elastic post. In some implementations, the restoration member 195 corresponds to the button 191, and may also be configured to restore the button 191.
(53) When the cane with a seat 10 is to be used as a chair, after the two auxiliary seat surfaces 220 are unlocked, the button 191 is pressed. Driven by the button 191, the clamping portion 1931 is withdrawn from the second clamping hole 120a. Under an action of a tensile force of the elastic member 180, the slider 120 slides automatically down along the main rod 130. The free ends of the two auxiliary seat surfaces 220 and the free end of the main seat surface 210 connected to the auxiliary seat surfaces 220 are supported away from the main rod 130 by the two second connecting rods 170 through the two auxiliary rods 140. The auxiliary assembly 300 drives the two auxiliary seat surfaces 220 to expand relative to the main seat surface 210. The main seat surface 210 drives the support rod 163 through the swing rod 161 to swing relative to the main rod 130, so as to support the main seat surface 210, until the seat assembly 200 is spread apart to the expanded state. Certainly, it may be understood that the lock structure 190 may be omitted. When the lock structure 190 is omitted or broken down, the collapsed state and the expanded state may be switched through manual operation of the user.
(54) Referring also to
(55) When the support assembly 100 is to be collapsed, namely the support assembly 100 is switched from the expanded state to the collapsed state, the slider 120 may be held and pulled up along the main rod 130, such that the junction between the second connecting rod 170 and the slider 120 moves up along the main rod 130, until the second clamping hole 120a of the slider 120 is clamped with the clamping portion 1931 of the lock structure 190, thereby achieving the collapsed state of the support assembly 100. In this process, the slider 120 pulls the ends (namely support ends 145) of the two auxiliary rods 140 close to the seat assembly 200 to move close to the main rod 130, and the squeezing action of the protrusion 121 on the slider 120 to the first swing arm 310 and the second swing arm 320 is reduced. The free end of the main seat surface 210 moves gradually close to the main rod 130. The swing rod 161 drives the end of the support rod 163 away from the main rod 130 to move close to the handle 150, and gradually close to the main rod 130. Under an action of the return member 330, the first swing arm 310 and the second swing arm 320 rotate relative to the main seat surface 210 and are gradually restored to the initial position. The support force of the auxiliary rod 140 to the auxiliary seat surface 220 is gradually reduced. The two auxiliary seat surfaces 220 under an action of a gravity rotate relative to the main seat surface 210 and move close to the main rod 130. The elastic member 180 connected to the main rod 130 and the slider 120 in the main rod 130 is stretched to accumulate the elastic potential energy, such that the slider 120 and the clamping portion 1931 are clamped reliably, and the support assembly 100 is kept at the collapsed state stably. The two auxiliary seat surfaces 220 can be buckled, such that the seat assembly 200 is also kept at the collapsed state stably.
(56) Further, referring also to
(57) Referring also to
(58) Specifically, the adjusting sleeve 153 may include an inner cartridge 1531 connected to the gripping portion 151, and an outer cartridge 1533 connected to the gripping portion 151 and sleeved on the inner cartridge 1531. The adjusting member 155 is detachably connected to the outer cartridge 1533 and the inner cartridge 1531. The end of the main rod 130 close to the handle 150 penetrates through a space between the inner cartridge 1531 and the outer cartridge 1533. The outer cartridge 1533 is provided with the second adjusting hole 153a. The inner cartridge 1531 is provided with an auxiliary hole 153b aligned to the second adjusting hole 153a. The adjusting member 155 penetrates through the auxiliary hole 153b, the second adjusting hole 153a and one of the first adjusting holes 130c, such that the positions of the main rod 130 and the handle 150 are fixedly relatively. With the structure that the adjusting member 155 penetrates through the auxiliary hole 153b and the second adjusting hole 153a, the adjusting member 155 can be supported by a wall of the auxiliary hole 153b and a wall of the second adjusting hole 153a to form a more stable support structure. This makes the adjusting sleeve 153 limit the main rod 130 more stably and reliably.
(59) Since the inner cartridge 1531 and the outer cartridge 1533 are adjustable relative to the main rod 130, in some implementations, the button 191 of the lock structure 190 is provided on the outer cartridge 1533, with an axial position on the outer cartridge 1533 kept unchanged. The clamping member 193 of the lock structure 190 is connected to the gripping portion 151, and can swing in a small range relative to the gripping portion 151, so as to withdraw from the second clamping hole 120a of the slider 120 or entering the second clamping hole 120a. The first clamping hole 130b in the main rod 130 may be an elongated groove structure extending along the axial direction of the main rod 130. When the main rod 130 moves along the axial direction relative to the handle 150, the clamping portion 1931 moves along the elongated first clamping hole 130b and is kept in the first clamping hole 130b, such that the lock structure 190 can lock the slider 120 timely.
(60) Referring to
(61) The technical features of the foregoing embodiments can be employed in arbitrary combinations. For brevity of description, not all possible combinations of the technical features of the foregoing embodiments are described. However, the combinations of the technical features should be construed as falling within the scope described in this specification as long as there is no contradiction in the combinations.
(62) The above described are merely several embodiments of the present disclosure. Although these embodiments are described specifically and in detail, they should not be construed as a limitation to the patent scope of the present disclosure. It should be noted that those of ordinary skill in the art can further make several variations and improvements without departing from the concept of the present disclosure, and all of these fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope defined by the claims.