Angle-adjustable rear supporting leg column mechanism based on tooth limiting

Abstract

The angle-adjustable rear supporting leg column mechanism comprises a support, a leg column, a rotating ring, a limiting disc and a shaft rod, an inserting opening is formed in the lower end of the support, a rotating sliding groove is formed in the inner wall of the inserting opening, an inner limiting protruding block is arranged on the inner side wall of the rotating sliding groove, an outer limiting protruding block is formed on the outer side wall of the rotating ring, and the limiting disc is arranged on the outer side wall of the rotating ring. The rotating ring is arranged in the rotating sliding groove, a joint is formed at the upper end of the foot column, the joint is arranged in the inserting opening, a concave opening part is formed in the outer side of the joint, first teeth are evenly distributed on the inner side wall of the concave opening part, a protruding shaft part is formed on one side of the limiting disc, second teeth are evenly distributed on the outer side wall of the protruding shaft part, and the protruding shaft part penetrates through the rotating ring and is inserted into the concave opening part. The first teeth and the second teeth are mutually clamped, the limiting disc and the rotating ring are mutually clamped, and the shaft rod penetrates through the axis of the limiting disc and the axis of the joint. The inclination angle of the rear supporting leg column is easy to adjust, the rear supporting leg column can be matched with various types of frames, compatibility is improved, and application cost can be saved.

Description

Technical Field

[0001] The utility model relates to a bicycle supporting foot column, in particular to an angle-adjustable rear supporting foot column mechanism based on tooth limiting. Background Art

[0002] In the prior art, the rear support leg of a bicycle is used to support the weight of the entire bicycle when parking so that the bicycle can be parked firmly on the ground. The rear support leg is connected to the rear hook on the left side of the frame through a mounting hole. The rear hook generally has a corresponding connecting hole designed or is fixed to the tail end of the rear left lower fork leg through a clamp ring. The main support piece of the rear support leg is a U-shaped clip with a connecting hole in the middle, and a round hole at the top of the supporting foot. The U-shaped clip is connected to the connecting hole at the top of the supporting foot with a rivet. When rotating, the supporting foot is subjected to force and rotates along the rivet as the center of the circle. When the foot body rotates to the bottom of the U-shaped clip, it is fixed at a fixed angle, thereby starting the positioning function. However, generally speaking, after the angle of the rear supporting foot is fixed, only a matching frame can be used to make the rear supporting foot. The supporting foot is not suitable for different frames. If the foot is not long enough or the angle is not suitable, the frame will be unstable. Only one foot length can be customized for one frame, the cost of use is high, many molds will be opened, there is no flexibility in matching the foot and the frame, the production cycle is long, and the parts matching efficiency is not high. In addition, the rivet structure is used for too long and often gets stuck, which is inconvenient to repair. Utility Model Content

[0003] The technical problem to be solved by the utility model is that, in view of the deficiencies in the prior art, an angle-adjustable rear supporting foot column mechanism based on tooth limiting is provided, which can be easily adjusted to suit a variety of vehicle frame types, thereby improving compatibility and saving application costs.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] An angle-adjustable rear support foot column mechanism based on tooth limit, comprising a support, a foot column, at least one swivel, at least one limit plate and a shaft rod, the upper end of the support is used to fix and connect the frame, the lower end of the support is provided with a socket, at least one inner wall of the socket is provided with a rotating slide groove, the inner side wall of the rotating slide groove is provided with at least one inner limit protrusion, the outer side wall of the swivel is formed with at least one outer limit protrusion, the swivel is arranged in the rotating slide groove, when the swivel is rotated relative to the rotating slide groove by a preset angle, the outer limit protrusion and the inner limit protrusion are The protrusions abut against each other, a joint is formed at the upper end of the foot column, the joint is arranged in the socket, a recess is formed on the outer side of the joint, the inner wall of the recess is evenly distributed with first teeth, the limiting plate is arranged on the outer side of the swivel, a convex shaft is formed on one side of the limiting plate, the outer wall of the convex shaft is evenly distributed with second teeth, the convex shaft passes through the swivel and is inserted in the recess, the first teeth and the second teeth are engaged with each other, the limiting plate and the swivel are engaged with each other, and the shaft passes through the axis of the limiting plate and the axis of the joint.

[0006] Preferably, two rotating rings and two limiting disks are included, the inner walls on both sides of the socket are provided with rotating grooves, the two limiting disks are symmetrically arranged in the two rotating grooves, and the two rotating rings are respectively arranged on the outer sides of the two limiting disks.

[0007] Preferably, the inner side wall of the rotating slide groove is provided with two mutually symmetrical inner limit protrusions, and the outer side wall of the rotating ring is formed with two mutually symmetrical outer limit protrusions, and the inner limit protrusions correspond to the outer limit protrusions one by one.

[0008] Preferably, the inner limit protrusion and the outer limit protrusion are both wedge-shaped protrusions.

[0009] Preferably, at least one positioning bayonet is formed at the inner ring end of the rotating ring, and at least one positioning protrusion is formed on the side of the limiting plate facing the rotating ring, and the positioning protrusion is clamped in the positioning bayonet.

[0010] Preferably, the inner ring end of the rotating ring is provided with two mutually symmetrical positioning bayonet holes, and one side of the limiting plate is formed with two positioning protrusions, and the positioning protrusions are aligned one by one with the positioning bayonet holes.

[0011] Preferably, a mounting plate is provided at the upper end of the support, and the mounting plate is fixedly connected to the frame by screws.

[0012] In the angle-adjustable rear support leg mechanism based on tooth limiting disclosed by the utility model, the limit plate is arranged on the outside of the swivel, the joint is arranged in the socket, and the convex shaft portion on the limit plate is inserted into the recessed portion after passing through the swivel, and based on the mutual engagement relationship between the first tooth and the second tooth and the mutual engagement relationship between the limit plate and the swivel, the joint and the swivel can rotate synchronously, and then the outer limit convex block and the inner limit convex block abut against each other to realize the function of expanding and closing the rear support leg to the frame, which is suitable for different types of vehicles. When the inclination angle of the foot column needs to be adjusted during the assembly process, the foot column can be first adjusted to an appropriate angle position relative to the support, and then the limit plate can be passed through the swivel accordingly, and finally the second tooth is engaged with the first tooth relative to the second tooth, and finally the shaft rod is fastened, thereby realizing the function of adjusting the inclination angle of the foot column after it is unfolded, which is beneficial to the frame assembly work. Compared with the prior art, the utility model is easy to adjust the inclination angle of the rear supporting foot column and can be adapted to various types of frames, which not only improves compatibility, but also saves application costs and better meets application needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded view of the adjustable rear support foot mechanism of the utility model;

[0014] Figure 2 is a side view of the support;

[0015] Figure 3 for Figure 2 Sectional view along line AA;

[0016] Figure 4 The adjustable rear support foot mechanism of the utility model is in use Figure 1 ;

[0017] Figure 5 The adjustable rear support foot mechanism of the utility model is in use Figure 2 . DETAILED DESCRIPTION

[0018] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0019] The utility model discloses an angle-adjustable rear support foot column mechanism based on tooth limit, combined with Figures 1 to 5As shown, it includes a support 1, a foot column 2, at least one swivel 3, at least one limit plate 4 and an axle rod 5. The upper end of the support 1 is used to fix the vehicle frame 100. The lower end of the support 1 is provided with a socket 10. At least one inner wall of the socket 10 is provided with a rotating groove 11. The inner side wall of the rotating groove 11 is provided with at least one inner limit protrusion 12. The outer side wall of the swivel 3 is formed with at least one outer limit protrusion 30. The swivel 3 is arranged in the rotating groove 11. When the swivel 3 rotates relative to the rotating groove 11 by a preset angle, the outer limit protrusion 30 abuts against the inner limit protrusion 12. A joint 20 is formed at the upper end of the column 2, and the joint 20 is arranged in the socket 10. A recessed portion 21 is formed on the outer side of the joint 20, and the inner wall of the recessed portion 21 is evenly distributed with first teeth 22. The limiting plate 4 is arranged on the outer side of the rotating ring 3, and a convex shaft portion is formed on one side of the limiting plate 4, and the outer wall of the convex shaft portion is evenly distributed with second teeth 40. The convex shaft portion passes through the rotating ring 3 and is inserted in the recessed portion 21, the first teeth 22 and the second teeth 40 are engaged with each other, the limiting plate 4 and the rotating ring 3 are engaged with each other, and the shaft 5 passes through the axis of the limiting plate 4 and the axis of the joint 20.

[0020] In the above structure, the limit plate 4 is arranged on the outside of the swivel 3, and the joint 20 is arranged in the socket 10. After the convex shaft portion on the limit plate 4 passes through the swivel 3, it is inserted into the recessed portion 21. Based on the mutual engagement relationship between the first teeth 22 and the second teeth 40 and the mutual engagement relationship between the limit plate 4 and the swivel 3, the joint 20 and the swivel 3 can rotate synchronously, and then the outer limit protrusion 30 and the inner limit protrusion 12 are abutted against each other to realize the function of expanding and approaching the rear support leg to the frame. For different types of frames, when assembled When the inclination angle of the foot column 2 needs to be adjusted during the process, the foot column 2 can be first adjusted to an appropriate angle position relative to the support 1, and then the limit plate 4 can be passed through the swivel 3 accordingly, and finally the second tooth 40 is engaged with the corresponding first tooth 22, and finally fastened by the shaft rod 5, so as to realize the function of adjusting the inclination angle of the foot column 2 after it is unfolded, which is beneficial to the frame assembly work. Compared with the prior art, the utility model is easy to adjust the inclination angle of the rear supporting foot column and can be adapted to a variety of frame models, which not only improves compatibility, but also saves application costs and better meets application needs.

[0021] In order to ensure synchronous limiting of both sides, the present embodiment includes two rotating rings 3 and two limiting disks 4, the inner walls on both sides of the socket 10 are provided with rotating grooves 11, the two limiting disks 4 are symmetrically arranged in the two rotating grooves 11, and the two rotating rings 3 are arranged on the outside of the two limiting disks 4. In the above structure, by arranging two rotating rings 3 and two limiting disks 4 on both sides of the joint 20, the mechanical balance of the two sides of the joint 20 can be achieved, which not only ensures that the foot column 2 has good rotation performance, but also improves the angle limiting ability.

[0022] On this basis, the inner side wall of the rotating chute 11 is provided with two mutually symmetrical inner limit protrusions 12, and the outer side wall of the rotating ring 3 is formed with two mutually symmetrical outer limit protrusions 30, and the inner limit protrusions 12 correspond to the outer limit protrusions 30 one by one. Further, the inner limit protrusions 12 and the outer limit protrusions 30 are both wedge-shaped protrusions. Among them, the wedge-shaped inner limit protrusions 12 and the outer limit protrusions 30 can prevent the rotating ring 3 from scratching the rotating chute 11 during the reciprocating rotation process.

[0023] In this embodiment, the limit plate 4 and the rotating ring 3 are in a mutually engaging relationship. In order to achieve this matching relationship, please refer to Figure 1 At least one positioning bayonet 31 is formed at the inner ring end of the rotating ring 3 , and at least one positioning protrusion 41 is formed on the side of the limiting plate 4 facing the rotating ring 3 , and the positioning protrusion 41 is clamped in the positioning bayonet 31 .

[0024] Specifically, two mutually symmetrical positioning bayonet holes 31 are formed at the inner ring end of the rotating ring 3 , and two positioning protrusions 41 are formed on one side of the limiting plate 4 , and the positioning protrusions 41 are aligned one by one with the positioning bayonet holes 31 .

[0025] As a preferred embodiment, a mounting plate 13 is provided at the upper end of the support 1, and the mounting plate 13 is fixedly connected to the frame 100 by screws.

[0026] In practical applications, the shaft rod 5 can be a rivet or other types of shaft rods.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. An angle-adjustable rear support foot mechanism based on tooth limit, characterized in that: The invention comprises a support (1), a foot column (2), at least one swivel (3), at least one limit plate (4) and a shaft (5); the upper end of the support (1) is used for fixedly connecting to a vehicle frame (100); the lower end of the support (1) is provided with a socket (10); at least one inner wall of the socket (10) is provided with a rotating groove (11); the inner wall of the rotating groove (11) is provided with at least one inner limit protrusion (12); the outer wall of the swivel (3) is provided with at least one outer limit protrusion (30); the swivel (3) is arranged in the rotating groove (11); when the swivel (3) is rotated by a preset angle relative to the rotating groove (11), the outer limit protrusion (30) and the inner limit protrusion (12) abut against each other; the foot column ( 2) is formed with a joint (20) at the upper end, the joint (20) is arranged in the socket (10), a notch (21) is formed on the outer side of the joint (20), the inner wall of the notch (21) is evenly distributed with first teeth (22), the limiting plate (4) is arranged on the outer side of the rotating ring (3), a convex shaft portion is formed on one side of the limiting plate (4), the outer wall of the convex shaft portion is evenly distributed with second teeth (40), the convex shaft portion passes through the rotating ring (3) and is inserted in the notch (21), the first teeth (22) and the second teeth (40) are engaged with each other, the limiting plate (4) and the rotating ring (3) are engaged with each other, and the shaft (5) passes through the axis of the limiting plate (4) and the axis of the joint (20).

2. The angle-adjustable rear support leg mechanism based on tooth position limiting according to claim 1, characterized in that: The invention comprises two rotating rings (3) and two limiting plates (4), the inner walls on both sides of the socket (10) are provided with rotating grooves (11), the two limiting plates (4) are symmetrically arranged in the two rotating grooves (11), and the two rotating rings (3) are arranged on the outer sides of the two limiting plates (4).

3. The angle-adjustable rear support leg mechanism based on tooth position limiting according to claim 1, characterized in that: The inner side wall of the rotating slide groove (11) is provided with two mutually symmetrical inner limit protrusions (12), and the outer side wall of the rotating ring (3) is formed with two mutually symmetrical outer limit protrusions (30), and the inner limit protrusions (12) correspond to the outer limit protrusions (30) one by one.

4. The angle-adjustable rear support leg mechanism based on tooth position limiting according to claim 3, characterized in that: The inner limit protrusion (12) and the outer limit protrusion (30) are both wedge-shaped protrusions.

5. The angle-adjustable rear support leg mechanism based on tooth position limiting according to claim 1, characterized in that: The inner ring end of the rotating ring (3) is provided with at least one positioning bayonet (31), and the limiting plate (4) is formed with at least one positioning protrusion (41) on the side facing the rotating ring (3), and the positioning protrusion (41) is clamped in the positioning bayonet (31).

6. The angle-adjustable rear support leg mechanism based on tooth position limiting according to claim 5, characterized in that: The inner ring end of the rotating ring (3) is provided with two mutually symmetrical positioning bayonet holes (31), and one side of the limiting plate (4) is formed with two positioning protrusions (41), and the positioning protrusions (41) are aligned one by one with the positioning bayonet holes (31).

7. The angle-adjustable rear support leg mechanism based on tooth position limiting according to claim 1, characterized in that: The upper end of the support (1) is provided with a mounting plate (13), and the mounting plate (13) is fixedly connected to the vehicle frame (100) by means of screws.

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