Threadless stopper cover for containers

Abstract

A threadless container stopper cover comprises an outer cover body, an inner cover body and a sealing sleeve sleeved on an outer wall of the inner cover body, where the outer cover body and the inner cover body are fixedly connected, and a first gap for accommodating a container mouth portion is formed between the sealing sleeve and the outer cover body. Limiting members are arranged inside the linkage body, and the outer cover body is provided with control members capable of locking or releasing the limiting members.

Claims

1. A threadless stopper cover for containers, comprising an outer cover body (1), an inner cover body (2), and a sealing sleeve (3) sleeved on an outer wall of the inner cover body (2), wherein the outer cover body (1) and the inner cover body (2) are fixedly connected, and a first gap (81) for accommodating a container mouth portion (8) is formed between the sealing sleeve (3) and the outer cover body (1); the inner cover body (2) is provided with a driving assembly capable of moving up and down and squeezing the sealing sleeve (3) for radial expansion; the inner cover body (2) comprises a cylinder body (21) and a first flange (22) protruding outward at the top of the cylinder body, wherein the first flange (22) is fixedly connected to an inner wall of the outer cover body (1), and the sealing sleeve (3) is sleeved on an outer wall of the cylinder body (21); the driving assembly comprises a driving plate (41), a linkage assembly, and a base (44), wherein the driving plate (41) is provided with one or more sliding rods (411), and one or more sliding rod holes (23) are formed on the first flange (22) for the corresponding one or more sliding rods (411) to pass through; the linkage assembly comprises a linkage body (43) that is configured to be inserted into the cylindrical body (21) of the inner cover body (2) and a second flange (42) protruding outward at the top of the linkage body (43); the driving plate (41) is arranged on a lower surface of the first flange (22), and each of the one or more sliding rods (411) penetrates through each of the corresponding one or more sliding rod holes (23) and is fixedly connected with the second flange (42); the base (44) is arranged at the bottom of the linkage body (43), and the bottom of the sealing sleeve (3) is in contact with the base (44); and limiting members are arranged inside the linkage body (43), and the outer cover body (1) is provided with a control member (5) capable of locking or releasing the limiting members.

2. The threadless stopper cover for containers according to claim 1, wherein two limiting members are arranged inside the linkage body (43), each limiting member comprises two oppositely arranged limiting rods (45), protruding limiting blocks (46) are arranged at relative positions at upper ends of the two oppositely arranged limiting rods (45), and a second gap (47) is formed between the two limiting blocks (46); and two mounting holes (11) are symmetrically formed on an outer wall of the outer cover body (1), the control member (5) is arranged inside the two mounting holes (11), and the control member (5) comprises buttons and a first elastic reset member (52), wherein the buttons include a pressing portion (51), a release portion (53) extending toward the inside of the outer cover body (1) and having a width smaller than that of the second gap (47), and a locking portion (54) having a width larger than that of the second gap (47) that are fixedly connected from outside to inside.

3. The threadless stopper cover for containers according to claim 1, wherein a fixing member (61) is arranged inside the inner cover body (2), and a second elastic reset member (62) is arranged between the fixing member (61) and the bottom of the linkage body (43).

4. The threadless stopper cover for containers according to claim 3, wherein a clamping portion (441) is arranged on the base (44), an upward recessed portion is formed at the bottom of the linkage body (43), and a clamping interface (431) for receiving the clamping portion (441) is arranged on an inner wall of the recessed portion.

5. The threadless stopper cover for containers according to claim 4, wherein each of bottom position of the base (44) and the linkage body (43) is provided with a through hole, and the through holes at the bottom position of the base (44) and the linkage body (43) are connected to form an exhaust hole; an exhaust rod (7) is further arranged, and the exhaust rod (7) includes a rod body (72) and a rod cap (73) with a radius larger than the radius of the rod body (72) and arranged at an upper end thereof, wherein an upper end of the rod cap (73) abuts against the fixing member (61), a lower end of the rod body (72) is arranged in the exhaust hole, a third elastic reset member (71) is sleeved outside the rod body (72), an upper end of the third elastic reset member (71) abuts against a lower end of the rod cap (73), and a lower end of the third elastic reset member (71) abuts against the bottom of the linkage body (43).

6. The threadless stopper cover for containers according to claim 1, wherein an inwardly protruding bottom flange (31) is arranged at the bottom of the sealing sleeve (3), and the bottom flange (31) is in contact with the base (44).

7. The threadless stopper cover for containers according to claim 1, wherein the driving plate (41) is provided with at least two sliding rods (411), and at least two sliding rod holes (23) consistent with the number of the at least two sliding rods (411) in quantity are formed on the first flange (22); and a plurality of hooks (412) are arranged at the top of the at least two sliding rods, (411) and each of the plurality of the hooks (412) corresponds to each of the at least two sliding rods (411), and the second flange (42) is provided with bayonets (421) corresponding to the at least two sliding rods (411) in quantity for fixing the plurality of the hooks (412).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 shows the structure of the sealed container mouth portion of the threadless stopper cover in the present invention.

(2) FIG. 2 shows the structure of the driving assembly of the threadless stopper cover in the present invention.

(3) FIG. 3 shows the breakdown structure of the threadless stopper cover of the present invention.

(4) FIG. 4 shows the structure of connecting a driving assembly with an inner cover body and a sealing sleeve in the threadless stopper cover of the present invention.

(5) FIG. 5 shows the structure of the threadless stopper cover in the present invention where it is opened from a container mouth portion.

(6) In the figures, the reference numbers refer to the following structures: 1outer cover body; 11mounting hole; 2inner cover body; 21cylinder body; 22first flange; 23sliding rod hole; 3sealing sleeve; 31bottom flange; 41driving plate; 411sliding rod; 412hook; 42second flange; 421bayonet; 43linkage body; 431clamping interface; 44base; 441clamping portion; 45limiting rod; 46limiting block; 47second gap; 5control member; 51pressing portion; 52first elastic reset member; 53release portion; 54locking portion; 61fixing member; 62second elasticity elastic reset member; 7exhaust rod; 71third elastic reset member; 72rod body; 73rod cap; 8container mouth portion; and 81first gap.

DETAILED DESCRIPTIONS OF THE EMBODIMENTS

(7) The present invention is further described below with reference to the accompanying drawings. The accompanying drawings are for illustrative description only and may not be construed as a limitation on the present invention.

(8) In order to explain this embodiment more concisely, some parts and components that are well known to those skilled in the art but are not relevant to the main content of the present invention might be omitted in the accompanying drawings or descriptions. In addition, for the convenience of description, some parts and components in the accompanying drawings may be omitted, enlarged or downsized, but this does not represent the size or entire structure of an actual product.

(9) The present invention discloses a threadless container stopper cover. As shown in FIG. 1, the container stopper cover includes an outer cover body 1, an inner cover body 2 and a sealing sleeve 3 sleeved on an outer wall of the inner cover body 2, where the outer cover body 1 and the inner cover body 2 are fixedly connected, a first gap 81 for accommodating a container mouth portion 8 is formed between the sealing sleeve 3 and the outer cover body 1, and the stopper cover is inserted into the container mouth portion 8 through the first gap 81.

(10) With reference to FIGS. 4 and 5, the inner cover body 2 is provided with a driving assembly capable of moving up and down and squeezing the sealing sleeve 3 for radial expansion; and as shown in FIGS. 3 and 4, the inner cover body 2 includes a cylinder body 21 and a first flange 22 protruding outward at the top of the cylinder body, where the first flange 22 is fixedly connected to an inner wall of the outer cover body 1, and the sealing sleeve 3 is sleeved on an outer wall of the cylinder body 21.

(11) As shown in FIG. 2, the driving assembly includes a driving plate 41, a linkage assembly and a base 44, where the driving plate 41 is provided with sliding rods 411, and sliding rod holes 23 for the sliding rods 411 to pass through are formed on the first flange 22; the linkage assembly includes a linkage body 43 that can be inserted into the cylinder body 21 of the inner cover body and a second flange 42 protruding outward at the top of the linkage body; the sliding rod 411 of the driving plate 41 penetrates through the sliding rod hole 23 from a lower surface of the first flange 2 and is fixedly connected with the second flange 42, so that when the driving plate 41 moves upward, the linkage assembly is driven to move upward, and when the driving plate 41 moves downward, the linkage assembly is driven to move downward.

(12) Preferably, as shown in FIGS. 2 and 3, the driving plate 41 is provided with at least two sliding rods 411, and the sliding rod holes 23 consistent with the sliding rods 411 in quantity are formed on the first flange 22; a hook 412 is arranged at the top of each sliding rod 411, and the second flange 42 is provided with bayonets 421 (consistent with the sliding rods 411 in quantity) for fixing the hooks 412.

(13) The base 44 is arranged at the bottom of the linkage body 43, and the bottom of the sealing sleeve 3 is in contact with the base 44; as shown in FIG. 1, when the driving plate 41 is pushed upward due to insertion of the container mouth portion 8, the linkage assembly is driven to move upward, and the base 44 squeezes the bottom of the sealing sleeve 3, so that the sealing sleeve 3 radially expands outward and squeezes the bottom of the container mouth portion 8 so that the stopper cover cannot be pulled out. Preferably, an inwardly protruding bottom flange 31 is arranged at the bottom of the sealing sleeve 3, and the bottom flange 31 is in contact with the base 44, thus ensuring that the bottom of the sealing sleeve 3 radially expands outward when being squeezed.

(14) As shown in FIG. 2, a clamping portion 441 is arranged on the base 44, an upward recessed portion is formed at the bottom of the linkage body 43, and a clamping interface 431 for receiving the clamping portion 441 is arranged on an inner wall of the recessed portion.

(15) Further, as shown in FIG. 3, a fixing member 61 is arranged inside the inner cover body 2, and a second elastic reset member 62 is arranged between the fixing member 61 and the bottom of the linkage body 43 to ensure that after squeezing of the sealing sleeve 3 is released by the base 44, the sealing sleeve 3 is capable to quickly and fully restore its initial state.

(16) In order to make the stopper cover seal the container well or to pull the stopper cover out of the container, as shown in FIG. 3, limiting members are arranged inside the linkage body 43, and the outer cover body 1 is provided with control members 5 capable of locking or releasing the limiting members.

(17) As shown in FIG. 2, two limiting members are arranged inside the linkage body 43, each limiting member includes two oppositely arranged limiting rods 45, protruding limiting blocks 46 are arranged at relative positions at upper ends of the two limiting rods 45, and a second gap 47 is formed between the two limiting blocks 46.

(18) Correspondingly, as shown in FIG. 3, two mounting holes 11 are symmetrically formed on an outer wall of the outer cover body 1, the control members 5 are arranged in the mounting holes 11, and the control member 5 includes buttons and a first elastic reset member 52, where the buttons include a pressing portion 51, a release portion 53 extending toward the inside of the outer cover body and having a width smaller than that of the second gap 47, and a locking portion 54 having a width larger than that of the second gap 47 that are fixedly connected from outside to inside.

(19) When control member 5 is in an initial state, the locking portion 54 is located above the limiting member. As shown in FIG. 1, when the stopper cover is inserted and the container mouth portion 8 is to be sealed, the container mouth portion 8 moves upward against the driving plate 41, and the two oppositely arranged limiting blocks 46 move upward, are squeezed apart by the locking portion 54 at the second gap 47, and rest against an upper surface of the locking portion 54, so that the stopper cover seals the container mouth and a closed state is maintained.

(20) As shown in FIG. 5, when needing to pull out the stopper cover to open the container mouth portion 8, the pressing portion 51 of the button of the control member 5 is pressed inward, the locking portion 54 moves inward, the release portion 53 moves to a position of the second gap 47, and the limiting block loses its reliance; and under the elastic force action of the second elastic reset member 62, the linkage assembly moves downward, the base 44 also moves downward, and the squeezing of the sealing sleeve 3 is released, so that the sealing sleeve 3 restores to its initial state, the stopper cover is opened and can be pulled out from the container mouth, and the first elastic reset member 52 pushes the button to restore to its initial state.

(21) Through holes are formed at the same bottom positions of the base 44 and the linkage body 43, and the two through holes are connected to form an exhaust hole. An exhaust rod 7 is further arranged, and the exhaust rod 7 includes a rod body 72 and a rod cap 73 with a radius larger than the radius of the rod body 72 and arranged at an upper end thereof, where an upper end of the rod cap 73 abuts against the fixing member 61, a lower end of the rod body 72 is arranged in the exhaust hole, a third elastic reset member 71 is sleeved outside the rod body 72, an upper end of the third elastic reset member 71 abuts against a lower end of the rod cap 73, and a lower end of the third elastic reset member 71 abuts against the bottom of the linkage body 43.

(22) Reset springs are generally employed as the first elastic reset member 52, the second elastic reset member 62 and the third elastic reset member 71.

(23) The foregoing descriptions are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. That is to say, all equivalent changes and modifications made based on the contents of the patentable scope of the present invention shall fall within the technical scope of the present invention.

(24) The present invention mainly solves the problems in the prior art that an elastic sealing sleeve cannot expand in a directional manner, and the container stopper cannot be opened freely only by relying on elasticity of the elastic sealing sleeve.