TAIL RUDDER CONTROL DEVICE AND KAYAK

Abstract

The present invention discloses a tail rudder control device and a kayak. The tail rudder control device comprises a tail rudder assembly. The tail rudder assembly comprises a tail rudder, a swing mechanism, a traction mechanism and a guide wheel box. The traction mechanism comprises a steering bracket in transmission connection with the swing mechanism and the tail rudder; a rotating shaft in transmission connection with the tail rudder to convert circumferential rotation of the rotating shaft into longitudinal flipping of the tail rudder; a first transmission wheel disposed around the rotating shaft and in transmission connection with a guide wheel set in the guide wheel box; and a second transmission wheel disposed around the rotating shaft, capable of moving axially along the rotating shaft, and having a first motion state where the second transmission wheel rotates with respect to the first transmission wheel, a second motion state where the second transmission wheel rotates synchronously with the first transmission wheel and the rotating shaft, and a third motion state where the second transmission wheel rotates synchronously with the steering bracket and the rotating shaft. The technical solution provided by the present invention effectively achieves the purpose of retractably installing the tail rudder on the bottom surface of a boat, effectively avoids collision with the bottom of the boat during the taking-up process of the tail rudder and has a simpler and more reliable overall structure.

Claims

1. A tail rudder control device, being applied to a boat and comprises a tail rudder assembly (10), the tail rudder assembly (10) comprising a tail rudder (1), a swing mechanism (4) for driving the tail rudder (1) to rotate left and right, a traction mechanism for driving the tail rudder (1) to flip longitudinally into a bottom of the boat, and a guide wheel box for driving the swing mechanism (4) and the tail rudder (1) to return to initial positions, wherein the traction mechanism comprises: a steering bracket (2) in transmission connection with the swing mechanism (4) and having a lower end hinged to the tail rudder (1); a rotating shaft (3) at least partially stretching into the steering bracket (2) and having a lower end in transmission connection with the tail rudder (1) to convert circumferential rotation of the rotating shaft (3) into longitudinal flipping of the tail rudder (1); a first transmission wheel (5) disposed around the rotating shaft (3) and in transmission connection with a guide wheel set (7) in the guide wheel box, a rotation path (51) being formed in the first transmission wheel (5), and a slope being formed on at least part of the rotation path (51); and a second transmission wheel (6) disposed around the rotating shaft (3), capable of moving axially along the rotating shaft (3), and at least partially located in the rotation path (51), such that the second transmission wheel (6) has a first motion state where the second transmission wheel (6) rotates with respect to the first transmission wheel (5) and moves axially along the rotating shaft (3), a second motion state where the second transmission wheel (6) rotates synchronously with the first transmission wheel (5) and the rotating shaft (3), and a third motion state where the second transmission wheel (6) rotates synchronously with the steering bracket (2) and the rotating shaft (3); and, in the first motion state, the first transmission wheel (5) drives the guide wheel set (7) to reset the tail rudder (1) and the swing mechanism (4) to the initial positions; in the second motion state, the first transmission wheel (5) drives the second transmission wheel (6) and the rotating shaft (3) to enable the tail rudder (1) to flip; and in the third motion state, the swing mechanism (4) drives the steering bracket (2), the second transmission wheel (6), the rotating shaft (3) and the tail rudder (1) to move to enable to the tail rudder (1) to rotate left and right.

2. The tail rudder control device according to claim 1, wherein at least one notch (21) is formed in an upper end of the steering bracket (2), at least one bump (61) fitting the notch (21) in shape is arranged on the second transmission wheel (6), the number of the bumps (61) is the same as the number of the notches (21), and each said bump (61) is detachably clamped in one said notch (21) and is allowed to disengage from the notch (21) when rotating with respect to the notch (21) in a first direction and enable the second transmission wheel (6) and the steering bracket (2) to rotate synchronously when rotating with respect to the notch (21) in a second direction.

3. The tail rudder control device according to claim 2, wherein a first slope (22) is formed in one side of the notch (21), and a second slope (62) matched with the first slope (22) is arranged on the bump (61), such that the bump (61) is allowed to disengage upwards from the notch (21) along the first slope (22).

4. The tail rudder control device according to claim 1, wherein an elastic piece (8) is arranged in the guide wheel box, and a lower end of the elastic piece (8) abuts against an upper end surface of the second transmission wheel (6) and provides a downward elastic force to the second transmission wheel (6) to enable the second transmission wheel (6) to move from a position where the second transmission wheel (6) is in the second motion state to a position where the second transmission wheel (6) is in the third motion state.

5. The tail rudder control device according to claim 1, wherein a gear (31) is arranged at a lower end of the rotating shaft (3), an arc-shaped groove (11) for receiving the gear (31) is formed in an upper end of the tail rudder (1), and two opposite sides of the tail rudder (1) are hinged to the steering bracket (2); and an arc-shaped rack structure (12) meshed with the gear (31) is arranged on at least one side of the arc-shaped groove (11) to convert circumferential rotation of the rotating shaft (3) and the gear (31) into longitudinal flipping of the tail rudder (1).

6. The tail rudder control device according to claim 3, wherein a through-hole (56) allowing the rotating shaft (3) to penetrate through is formed in a middle of the first transmission wheel (5), the rotation path (51) is a groove formed in an inner side wall of the through-hole (56), a transmission block (63) located in the groove is arranged on a periphery of the second transmission wheel (6), the transmission block (63) rotates from a first end (53) of the groove to a second end (54) of the groove in the first motion state, and the second end (54) is higher than the first end (53).

7. The tail rudder control device according to claim 1, wherein the swing mechanism (4) comprises a steering swing arm (41) disposed outside the steering bracket (2) and swing arm columns (42) fixedly connected to lower side surfaces of two ends of the steering swing arm (41), the guide wheel set (7) comprises four straightening gears (71), every two said straightening gears (71) form a gear set, the two gear sets are arranged on left and right sides of the steering swing arm (41), the two straightening gears (71) in each gear set are meshed with each other and in meshed connection with a periphery of the first transmission wheel (5) by means of a transmission gear (72), and a lower end surface of each said straightening gear (71) is provided with a convex surface (73) abutting against the corresponding swing arm column (42) in the rotation process and resetting the steering swing arm (41).

8. The tail rudder control device according to claim 6, wherein the tail rudder control device further comprises a manual control assembly (30) and two pedal assembles (20), the manual control assembly (30) is in transmission connection with the first transmission wheel (5) through a transmission traction line (50) to drive the first transmission wheel (5) to rotate, and each the two pedal assemblies (20) is in transmission connection with the swing mechanism (4) through a steering traction line (40) to drive the swing mechanism (4) to act.

9. The tail rudder control device according to claim 8, wherein a gap (55) is formed in the first end (53) of the groove, and when the transmission block (63) moves into the gap (55), the bump (61) of the second transmission wheel (6) is clamped in the notch (21) of the steering bracket (2).

10. A kayak, comprising a boat body (60), wherein the kayak further comprises the tail rudder control device according to any one of claims 1-9, the pedal assemblies (20) and the manual control assembly (30) of the tail rudder control device are fixedly installed on an inner side wall of the boat body (60), the tail rudder assembly (10) of the tail rudder control device is installed at a tail of the boat body (60), and the tail rudder (1) of the tail rudder assembly (10) is able to flip downwards to extend out of a bottom surface of the boat body (60) and flip upwards to be stored in the ship body (60).

Description

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

[0025] FIG. 1 is a perspective view of a tail rudder control device of the present invention;

[0026] FIG. 2 is a first perspective view of a tail rudder assembly of the tail rudder control device of the present invention;

[0027] FIG. 3 is a second perspective view of the tail rudder assembly of the tail rudder control device of the present invention;

[0028] FIG. 4 is a first exploded view of the tail rudder assembly of the tail rudder control device of the present invention;

[0029] FIG. 5 is a second exploded view of the tail rudder assembly of the tail rudder control device of the present invention;

[0030] FIG. 6 is a perspective view of a traction mechanism of the tail rudder control device of the present invention;

[0031] FIG. 7 is a perspective view of a first transmission wheel of the tail rudder control device of the present invention;

[0032] FIG. 8 is a first perspective view of a second transmission wheel of the tail rudder control device of the present invention;

[0033] FIG. 9 is a second perspective view of the second transmission wheel of the tail rudder control device of the present invention;

[0034] FIG. 10 is a perspective view of a steering bracket of the tail rudder control device of the present invention;

[0035] FIG. 11 is a first schematic diagram of the tail rudder control device in use under the condition that pedal assemblies are omitted according to the present invention;

[0036] FIG. 12 is a second schematic diagram of the tail rudder control device in use under the condition that the pedal assemblies are omitted according to the present invention;

[0037] FIG. 13 is a third schematic diagram of the tail rudder control device in use under the condition that the pedal assemblies are omitted according to the present invention;

[0038] FIG. 14 is a fourth schematic diagram of the tail rudder control device in use under the condition that the pedal assemblies are omitted according to the present invention; FIG. 15 is a perspective view of a kayak of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0039] To gain a good understanding of the technical means, creative features and objectives of the present invention, the present invention is specifically expounded below in conjunction with embodiments and accompanying drawings.

Embodiment 1

[0040] As shown in FIG. 1 to FIG. 9, this embodiment provides a tail rudder control device which is applied to a boat and comprises a tail rudder assembly 10, and the tail rudder assembly 10 comprises a tail rudder 1, a swing mechanism 4 for driving the tail rudder 1 to rotate left and right, a traction mechanism for driving the tail rudder 1 to flip longitudinally into the bottom of the boat, and a guide wheel box for driving the swing mechanism 4 and the tail rudder 1 to return to initial positions; wherein, the traction mechanism comprises: [0041] a steering bracket 2 in transmission connection with the swing mechanism 4 and having a lower end hinged to the tail rudder 1; [0042] a rotating shaft 3 at least partially stretching into the steering bracket 2 and having a lower end in transmission connection with the tail rudder 1 to convert circumferential rotation of the rotating shaft 3 into longitudinal flipping of the tail rudder 1; [0043] a first transmission wheel 5 disposed around the rotating shaft 3 and in transmission connection with a guide wheel set 7 in the guide wheel box, a rotation path 51 being formed in the first transmission wheel 5, and a slope being formed on at least part of the rotation path 51; and [0044] a second transmission wheel 6 disposed around the rotating shaft 3, capable of moving axially along the rotating shaft 3, and at least partially located in the rotation path 51, such that the second transmission wheel 6 has a first motion state where the second transmission wheel 6 rotates with respect to the first transmission wheel 5 along the rotation path 51 and moves axially along the rotating shaft 3, a second motion state where the second transmission wheel 6 rotates synchronously with the first transmission wheel 5 and the rotating shaft 3, and a third motion state where the second transmission wheel rotates synchronously with the steering bracket 2 and the rotating shaft 3; [0045] and, in the first motion state, the first transmission wheel 5 drives the guide wheel set 7 to reset the tail rudder 1 and the swing mechanism 4 to the initial positions; in the second motion state, the first transmission wheel 5 drives the second transmission wheel 6 and the rotating shaft 3 to enable the tail rudder 1 to flip; in the third motion state, the swing mechanism 4 drives the steering bracket 2, the second transmission wheel 6, the rotating shaft 3 and the tail rudder 1 to move to enable to the tail rudder 1 to rotate left and right.

[0046] Based on the above technical solution, the tail rudder control device comprises the tail rudder assembly 10, the tail rudder assembly 10 comprises the tail rudder 1, the swing mechanism 4, the traction mechanism and the guide wheel box, the traction mechanism comprises the steering bracket 2, the rotating shaft 3, the first transmission wheel 5 and the second transmission wheel 6, and a clutch structure is formed between the second transmission wheel 6 and the first transmission wheel 5, such that the second transmission wheel 6 has three motion states and can switch between the three motion states to switch linkage states of components, thus realizing resetting of the tail rudder 1 and the swing mechanism 4, flipping of the tail rudder 1, and left and right rotation of the tail rudder 1, effectively achieving the purpose of retractably mounting the tail rudder 1 on the bottom surface of the boat, effectively avoiding the problem of collision with the bottom of the boat during the retraction process of the tail rudder 1, and making the overall structure simpler and more reliable.

[0047] In a preferred embodiment, specifically as shown in FIG. 9 and FIG. 10, at least one notch 21 is formed in an upper end of the steering bracket 2, at least one bump 61 fitting the notch 21 in shape is arranged on the second transmission wheel 6, the number of the bumps 61 is the same as the number of the notches 21, and each bump 61 is detachably clamped in one notch 21 and is allowed to disengage from the notch 21 when rotating with respect to the notch 21 in a first direction and enable the second transmission wheel 6 and the steering bracket 2 to rotate synchronously when rotating with respect to the notch 21 in a second direction. Further, a first slope 22 is formed in one side of the notch 21, and a second slope 62 matched with the first slope 22 is arranged on the bump 61, such that the bump 61 is allowed to disengage upwards from the notch 21 along the second slope 62 and the first slope 22 fitting the second slope 62. Specifically, as shown in FIG. 9 and FIG. 10, from the overhead perspective, the first direction and the second direction are, but not limited to, a clockwise direction around the axis of the rotating shaft 3 and an anticlockwise direction around the axis of the rotating shaft 3 respectively. In this embodiment, one notch 21 and one bump 61 are arranged. Obviously, two groups or notches 21 and bumps 61 may be symmetrically arranged, or multiple notches 21 and bumps 61 may be arranged uniformly. The direction of the slopes is the same as the first direction.

[0048] In specific application, when the boat sails normally, the tail rudder 1 will flip upwards to be stored if encountering a rock or other obstacles, at this moment, the rotating shaft 3 and the second transmission wheel 6 will be driven to rotate synchronously, and in this process, the bump 61 rotates in the first direction to disengage from the notch 21, thus avoiding left and right rotation of the steering bracket 2; when the tail rudder 1 moves away from the rock or other obstacles, the tail rudder 1 will reset downwards under the action of its gravity or the second transmission wheel 6 will reset downwards under the action of other elastic pieces to allow the bump 61 to be clamped in the notch 21. That is, the above design allows the tail rudder to partially flip upwards to be stored so as to be protected against damage when encountering an obstacle and to return to the working state when moving away from the obstacle, thus being safer and more reliable.

[0049] In a further preferred embodiment, as shown in FIG. 6, an elastic piece 8 is arranged in the guide wheel box, and a lower end of the elastic piece 8 abuts against an upper end surface of the second transmission wheel 6 and provides a downward elastic force to the second transmission wheel 6 to enable the second transmission wheel 6 to move from a position where the second transmission wheel 6 is in the second motion state to a position where the second transmission wheel 6 is in the third motion state. Specifically, the elastic piece 8 is a spring and is disposed around the rotating shaft 3. Obviously, one or more rubber elastic pins can be used to fulfill an equivalent effect.

[0050] In a preferred embodiment, specifically as shown in FIG. 4 and FIG. 6, a gear 31 is arranged at a lower end of the rotating shaft 3, an arc-shaped groove 11 for receiving the gear 31 is formed in an upper end of the tail rudder 1, and two opposite sides of the tail rudder 1 are hinged to the steering bracket 2; and an arc-shaped rack structure 12 meshed with the gear 31 is arranged on at least one side of the arc-shaped groove 11 to convert circumferential rotation of the rotating shaft 3 and the gear 31 into longitudinal flipping of the tail rudder 1.

[0051] In a preferred embodiment, specifically as shown in FIG. 7 to FIG. 9, a through-hole 56 allowing the rotating shaft 3 to penetrate through is formed in the middle of the first transmission wheel 5, the rotation path 51 is a groove formed in an inner side wall of the through-hole 56, a transmission block 63 located in the groove is arranged on the periphery of the second transmission wheel 6, the transmission block 63 rotates from a first end 53 of the groove to a second end 54 of the groove in the first motion state, and the second end 54 is higher than the first end 53. That is, in this movement process, because at least part of the groove is a slope (such as the position 52 in FIG. 7, or the whole groove is designed into an oblique groove), the height of the transmission block 63 will change, the second transmission wheel 6 will rise axially along the rotating shaft 3 accordingly, and when the transmission block 63 is located at the first end 53, the bump 61 below the second transmission wheel 6 is clamped in the notch 21 of the steering bracket, and the second transmission wheel 6 enters the third motion state.

[0052] In a preferred embodiment, specifically as shown in FIG. 2 to FIG. 6, the swing mechanism 4 comprises a steering swing arm 41 disposed outside the steering bracket 2 and swing arm columns 42 fixedly connected to lower side surfaces of two ends of the steering swing arm 41, the guide wheel set 7 comprises four straightening gears 71, every two straightening gears 71 form a gear set, the two gear sets are arranged on left and right sides of the steering swing arm 41, the two straightening gears 71 in each gear set are meshed with each other and in meshed connection with the periphery of the first transmission wheel 5 by means of a transmission gear 72, and a lower end surface of each straightening gear 71 is provided with a convex surface 73 abutting against the corresponding swing arm column 42 in the rotation process and resetting the steering swing arm 41.

[0053] In a preferred embodiment, the tail rudder control device further comprises a manual control assembly 30 and two pedal assembles 20, the manual control assembly 30 is in transmission connection with the first transmission wheel 5 through a transmission traction line 50 to drive the first transmission wheel 5 to rotate, and each the two pedal assemblies 20 is in transmission connection with the swing mechanism 4 through a steering traction line 40 to drive the swing mechanism 4 to act.

[0054] Specifically, as shown in FIG. 1, when the manual control assembly 30 drives the transmission traction line 50 to act, the first transmission wheel 5 is driven to act to perform a preceding step and a follow-up step sequentially. Wherein, in the preceding step, the rotation distance of the first transmission wheel 5 is not greater than the arc length of the groove, in this stage, the transmission block 63 of the second transmission wheel 6 moves from the first end 53 of the groove to the second end 54 of the groove, and under the action of the slope of the groove, the second transmission wheel 6 is driven to rise longitudinally in the axial direction of the rotating shaft 3; and in this stage, the action of the first transmission wheel 5 and the action of the transmission traction line 50 are further transmitted to the guide wheel set 7 in the guide wheel box to drive the guide wheel set 7 to act, thus resetting the tail rudder 1 which is deflected left and right in use. In the follow-up step, when moving to the second end 54 of the groove and abutting against the side wall of the groove, the first transmission wheel 5 further rotates to synchronously drive the second transmission wheel 6 to rotate so as to drive the rotating shaft 3 to act, such that the tail rudder 1 is driven to longitudinally flip to be stored at the bottom of the boat by means of the gear 31 and the arc-shaped rack structure 12 meshed with the gear 31. In this way, the tail rudder 1 can be reset horizontally and longitudinally in sequence by operating the manual control assembly 30, and the problem of collision with the bottom of the boat during the taking-up process of the tail rudder 1 can be effectively avoided. In addition, in the preceding process, the four straightening gears 71 rotate accordingly and further act, when the convex surfaces 73 of two straightening gears 71 abut against the swing arm columns 42, to drive the steering swing arm 41 to rotate to return to the initial position.

[0055] In a preferred embodiment, a gap 55 is formed in the first end 53 of the groove, and when the transmission block 63 moves into the gap 55, the bump 61 of the second transmission wheel 6 is clamped in the notch 21 of the steering bracket 2. That is, in this state, the second transmission wheel 6 is located at an extreme position within the downward movement range in the axial direction of the rotating shaft 3; and when the tail rudder 1 flips upwards in case of an obstacle, the rotating shaft 3 rotates accordingly and drives the second transmission wheel 6 to be upwards separated from the steering bracket 2, and at the same time, the transmission block 63 disengages from the gap 55 and rotates along the groove. Further, a third slope 64 matched with the slope in the groove is arranged on a lower end surface of the transmission block 63, a fourth slope is arranged on an inner top surface of the gap, and a fifth slope 65 matched with the fourth slope is arranged on an upper end surface of the transmission block 63, such that the transmission block 63 is allowed to move into the gap 55 or disengage from the gap 55.

[0056] Further, referring to FIG. 11 to FIG. 14, the direction of the transmission traction line 50 is shown, and part of the contents in FIG. 11 to FIG. 14 are shown in a perspective manner; in FIG. 11, the tail rudder 1 is in a left-right swing state; in FIG. 12 and FIG. 13, the tail rudder 1 resets to the initial position in the horizontal direction; and in FIG. 14, the tail rudder 1 further flips upwards in the longitudinal direction to be stored.

[0057] In addition, the structure and use logic of the pedal assemblies 20 and the manual control assembly 30 are basically the same as those in the prior art and thus will not be repeated here.

Embodiment 2

[0058] As shown in FIG. 15, this embodiment provides a kayak, which comprises a boat body 60 and the tail rudder control device as described in Embodiment 1. The pedal assemblies 20 and the manual control assembly 30 of the tail rudder control device are fixedly installed on the inner side wall of the boat body 60. The tail rudder assembly 10 of the tail rudder control device is installed at the tail of the boat body 60, and the tail rudder 1 of the tail rudder assembly 10 is able to flip downwards to extend out of the bottom surface of the boat body 60 and flip upwards to be stored in the ship body 60.

[0059] The above embodiments are merely preferred ones of the present invention and are used for explaining the present invention rather than limiting the present invention. Those skilled in the art should understand that many variations, amendments and even equivalent substitutions can be made based on the spirit and scope defined by the claims of the present invention, and all these variations, amendments and equivalent substitutions should also fall within the protection scope of the present invention.