Brake linkage structure of tricycle

Abstract

The utility model discloses a tricycle brake linkage structure which comprises a transmission rod, a transmission plate is welded to the front end of the transmission rod, a brake pull rod mounting hole is formed in the bottom end of the transmission plate, and a rear wheel brake traction pull rod is transversely inserted into the brake pull rod mounting hole in a penetrating mode. A supporting assembly for reducing resistance and abrasion is arranged outside the transmission rod. According to the tricycle brake linkage structure, the connecting plate, the outer steel ring, the ball bearing and the dustproof cover are arranged, when the tricycle brake linkage structure is used, the outer steel ring with the ball bearing is arranged outside a transmission rod in a sleeving mode, the transmission rod is connected with the inner wall of the ball bearing through glue, the connecting plate is fixed to a tricycle frame through welding, and when the transmission rod rotates, the ball bearing provides support; the device is simple in structure, smooth and labor-saving in rotation and free of friction noise, the functions of reducing resistance and reducing abrasion are achieved, and the problem that the device does not have the functions of reducing resistance and reducing abrasion is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tricycle accessories, in particular to a tricycle brake linkage structure. Background Art

[0002] The tricycle is a common means of transportation with a cargo box at the rear for loading goods and a handlebar at the front for controlling the direction. It is mainly divided into two types: electric drive and human drive.

[0003] At present, the common electric-driven tricycles on the market mostly have foot brake systems. The brake pedal is moved down by stepping on the foot, and the transmission rod is driven to rotate through the transmission structure. The transmission plate at the end of the transmission rod swings, and the transmission plate pulls the brake traction rod to tighten the rear wheel brake to achieve braking. There are some functional deficiencies in actual use, and there is room for improvement. For example, the current tricycle brake transmission rod is mainly limited by three perforated iron sheets, and the transmission rod passes through the perforated iron sheets. Since the perforated iron sheets are mostly manually welded, due to the limitations of the welding process, the positions of the three sets of iron sheets are prone to deviations, which affects the rotation of the transmission rod, making it more sluggish, and a sharp friction sound is generated when braking. The transmission rod is easily worn, and it does not have the function of reducing resistance and wear.

[0004] Now, a novel tricycle brake linkage structure is proposed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a brake linkage structure for a tricycle to solve the problem that the above-mentioned background technology does not have the function of reducing resistance and reducing wear.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a three-wheeled vehicle brake linkage structure, including a transmission rod, a transmission plate welded to the front end of the transmission rod, a brake rod mounting hole is arranged inside the bottom end of the transmission plate, a rear wheel brake traction rod is transversely inserted inside the brake rod mounting hole, and a support component for reducing resistance and wear is arranged on the outside of the transmission rod.

[0007] The support assembly includes two groups of outer steel rings, which are respectively sleeved on the front and rear ends of the outside of the transmission rod. A connecting plate is welded to the front end of one side of the outer steel ring. A ball bearing is installed inside the outer steel ring, and dust covers are movably connected to the front and rear ends of the ball bearing.

[0008] Preferably, the outer diameter of the ball bearing is consistent with the inner diameter of the outer steel ring, and the outer wall of the ball bearing is connected to the inner wall of the outer steel ring.

[0009] Preferably, the inner diameter of the ball bearing is consistent with the outer diameter of the transmission rod, and the inner wall of the ball bearing is connected to the outer wall of the transmission rod.

[0010] Preferably, the vertical planes where the front ends of the outer steel ring, the ball bearing and the dust cover are located are consistent, and the vertical planes where the rear ends of the outer steel ring, the ball bearing and the dust cover are located are consistent.

[0011] Preferably, the connecting plate and the outer steel ring are made of the same material, and the upper and lower ends of the connecting plate are flush with the upper and lower ends of the outer steel ring.

[0012] Preferably, a buffer spring is sleeved on the outside of the transmission rod, and one side of the buffer spring is connected to one side of the transmission plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the brake linkage structure of the tricycle not only realizes the function of reducing resistance and wear, but also realizes the function of traction buffering;

[0014] By providing a connecting plate, an outer steel ring, a ball bearing and a dust cover, when in use, the driver of the tricycle steps on the brake, the brake drives the transmission rod to rotate through the transmission member, the transmission plate at the end of the transmission rod swings synchronously, pulls the rear wheel brake traction rod, the rear wheel brake traction rod pulls the rear wheel brake to tighten it, and completes the braking action. When installing the transmission rod, the outer steel ring with the ball bearing is sleeved on the outside of the transmission rod, the transmission rod and the inner wall of the ball bearing are connected by adhesive, the connecting plate is fixed to the frame of the tricycle by welding, when the transmission rod rotates, it is supported by the ball bearing, the rotation is smoother and more labor-saving, and there is no friction noise, the dust cover can protect the ball bearing, extend its service life, and realize the function of reducing resistance and reducing wear;

[0015] By providing a brake rod mounting hole, a rear wheel brake traction rod and a buffer spring, the rear wheel brake traction rod pulls the rear wheel brake to tighten it when braking, and the transmission plate is reset when releasing, and the rear wheel brake traction rod is also reset synchronously. During the reciprocating process, the buffer spring can make the rear wheel brake traction rod relatively fixed in the position of the brake rod mounting hole, providing a supporting force to prevent it from loosening and sliding, thereby realizing the function of traction buffering. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a ball bearing of the utility model;

[0018] Figure 3 It is a partial top view structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial side structural schematic diagram of the transmission rod of the utility model.

[0020] In the figure: 1. Transmission rod; 2. Transmission plate; 3. Brake rod mounting hole; 4. Rear wheel brake traction rod; 5. Buffer spring; 6. Connecting plate; 7. Outer steel ring; 8. Ball bearing; 9. Dust cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1: Please refer to Figure 1-4 A three-wheeled vehicle brake linkage structure includes a transmission rod 1, a transmission plate 2 is welded to the front end of the transmission rod 1, a brake rod mounting hole 3 is arranged inside the bottom end of the transmission plate 2, a rear wheel brake traction rod 4 is horizontally inserted inside the brake rod mounting hole 3, and a support component for reducing resistance and wear is arranged outside the transmission rod 1;

[0023] See also Figure 1-4 A tricycle brake linkage structure also includes a support assembly, which includes two sets of outer steel rings 7, which are respectively sleeved on the front and rear ends of the outside of the transmission rod 1, and a connecting plate 6 is welded to the front end of one side of the outer steel ring 7. A ball bearing 8 is installed inside the outer steel ring 7, and the front and rear ends of the ball bearing 8 are respectively movably connected with dust covers 9;

[0024] The outer diameter of the ball bearing 8 is consistent with the inner diameter of the outer steel ring 7, the outer wall of the ball bearing 8 is connected to the inner wall of the outer steel ring 7, the inner diameter of the ball bearing 8 is consistent with the outer diameter of the transmission rod 1, the inner wall of the ball bearing 8 is connected to the outer wall of the transmission rod 1, the vertical planes where the front ends of the outer steel ring 7, the ball bearing 8 and the dust cover 9 are located are consistent, and the vertical planes where the rear ends of the outer steel ring 7, the ball bearing 8 and the dust cover 9 are located are consistent, the connecting plate 6 and the outer steel ring 7 are made of the same material, and the upper and lower ends of the connecting plate 6 are flush with the upper and lower ends of the outer steel ring 7, which can reduce resistance and reduce rod wear, making it rotate more smoothly;

[0025] Specifically, Figure 1 and Figure 2 As shown, an outer steel ring 7 with a ball bearing 8 is sleeved on the outside of the transmission rod 1, and the transmission rod 1 and the inner wall of the ball bearing 8 are connected by adhesive. The connecting plate 6 is fixed to the frame of the tricycle by welding. When the transmission rod 1 rotates, the ball bearing 8 provides support, and the rotation is smoother and more labor-saving, and there is no friction noise. The dust cover 9 can protect the ball bearing 8 and extend its service life.

[0026] Embodiment 2: A buffer spring 5 is sleeved on the outside of the transmission rod 1, and one side of the buffer spring 5 is connected to one side of the transmission plate 2 to provide traction for the rear wheel brake traction rod 4 to reduce the amplitude of its displacement;

[0027] Specifically, Figure 3 and Figure 4 As shown, the buffer spring 5 can make the rear wheel brake traction rod 4 relatively fixed in the position of the brake rod mounting hole 3, providing a supporting force to prevent it from loosening and sliding.

[0028] Working principle: When the utility model is used, first, the driver of the tricycle steps on the brake, and the brake drives the transmission rod 1 to rotate through the transmission member, and the transmission plate 2 at the end of the transmission rod 1 swings synchronously, pulling the rear wheel brake traction rod 4, and the rear wheel brake traction rod 4 pulls the rear wheel brake to tighten it, completing the braking action. When installing the transmission rod 1, the outer steel ring 7 with the ball bearing 8 is sleeved on the outside of the transmission rod 1, and the transmission rod 1 and the inner wall of the ball bearing 8 are connected by adhesive. The connecting plate 6 is fixed on the frame of the tricycle by welding. When the transmission rod 1 rotates, it is supported by the ball bearing 8, and the rotation is smoother and more labor-saving, and there is no friction noise. The dust cover 9 can protect the ball bearing 8 and extend its service life. When braking, the rear wheel brake traction rod 4 pulls the rear wheel brake to tighten it. When releasing, the transmission plate 2 is reset, and the rear wheel brake traction rod 4 is also reset synchronously. In the process of reciprocating, the buffer spring 5 can make the rear wheel brake traction rod 4 relatively fixed in the position of the brake rod mounting hole 3, providing a supporting force to prevent it from loosening and sliding.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A brake linkage structure for a tricycle, comprising a transmission rod (1), characterized in that: A transmission plate (2) is welded to the front end of the transmission rod (1), a brake rod mounting hole (3) is provided inside the bottom end of the transmission plate (2), a rear wheel brake traction rod (4) is transversely inserted inside the brake rod mounting hole (3), and a support component for reducing resistance and wear is provided outside the transmission rod (1); The support assembly comprises two groups of outer steel rings (7), the two groups of outer steel rings (7) are respectively sleeved on the front and rear ends of the outside of the transmission rod (1), a connecting plate (6) is welded to the front end of one side of the outer steel ring (7), a ball bearing (8) is installed inside the outer steel ring (7), and dust covers (9) are movably connected to the front and rear ends of the ball bearing (8).

2. A tricycle brake linkage structure according to claim 1, characterized in that: The outer diameter of the ball bearing (8) is consistent with the inner diameter of the outer steel ring (7), and the outer wall of the ball bearing (8) is connected to the inner wall of the outer steel ring (7).

3. A tricycle brake linkage structure according to claim 1, characterized in that: The inner diameter of the ball bearing (8) is consistent with the outer diameter of the transmission rod (1), and the inner wall of the ball bearing (8) is connected to the outer wall of the transmission rod (1).

4. A tricycle brake linkage structure according to claim 1, characterized in that: The front ends of the outer steel ring (7), the ball bearing (8) and the dust cover (9) are located on the same vertical plane, and the rear ends of the outer steel ring (7), the ball bearing (8) and the dust cover (9) are located on the same vertical plane.

5. A tricycle brake linkage structure according to claim 1, characterized in that: The connecting plate (6) and the outer steel ring (7) are made of the same material, and the upper and lower ends of the connecting plate (6) are flush with the upper and lower ends of the outer steel ring (7).

6. A tricycle brake linkage structure according to claim 1, characterized in that: A buffer spring (5) is sleeved on the outside of the transmission rod (1), and one side of the buffer spring (5) is connected to one side of the transmission plate (2).

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