Seat support for tricycle

By designing a seat bracket for tricycles, the cushioned seat structure and bracket components adjust the distance between the seat and the handlebars, solving the problem of arm length not being suitable for the fixed seat spacing in existing technologies, thus improving riding comfort and handling stability.

CN224159355UActive Publication Date: 2026-04-24XUZHOU YUANXIANG MOTOR VEHICLE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XUZHOU YUANXIANG MOTOR VEHICLE TECH CO LTD
Filing Date
2025-05-16
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing tricycle seat frame cannot adjust the distance between the seat and the handlebars according to the driver's arm length, which causes arm fatigue for people with longer arms and discomfort for people with shorter arms, affecting the stability and flexibility of handling.

Method used

Design a seat bracket for a tricycle, comprising a cushioned seat structure and a bracket assembly. The cushioned seat structure absorbs vibrations, the bracket assembly adjusts the distance between the seat and the handlebars, and a gear plate and locking structure ensure stability.

Benefits of technology

It enables the adjustment of the seat-handlebar distance based on the rider's arm length, improving riding comfort and handling stability, reducing arm fatigue, and enhancing seat stability and flexibility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224159355U_ABST
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Abstract

The utility model provides a seat bracket for a tricycle, which comprises a support plate, a buffer seat structure arranged above the support plate, and a bracket assembly arranged below the support plate, the support assembly comprises a U-shaped plate arranged below the supporting plate, a rotating rod rotationally connected to the U-shaped plate, a set of gears arranged outside the rotating rod, and a toothed plate installed on the bottom face of the supporting plate and engaged with the gears. The supporting structure is arranged at the top of the U-shaped plate and used for stabilizing the supporting plate and buffering the seat structure; and the locking structure is arranged on one side of the U-shaped plate and used for preventing the rotating rod from automatically rotating. By arranging the support assembly, the supporting plate and the seat plate can be driven to move synchronously, the distance between the seat plate and the tricycle handlebar can be adjusted according to different arm lengths of a driver, and therefore the driver with different arm lengths can easily grasp the tricycle handlebar.
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Description

Technical Field

[0001] This utility model relates to the field of tricycle accessories technology, and in particular to a seat bracket for tricycles. Background Technology

[0002] In the use of tricycles, the seat frame is a key component connecting the seat and the vehicle body. Its performance directly affects the comfort and safety of the ride. The seat frame is usually made of high-strength steel or aluminum alloy and uses precision welding process to ensure the overall structure is stable and can withstand the alternating load under long-term bumpy road conditions, avoiding the risk of breakage due to metal fatigue.

[0003] Current seat brackets are usually fixed to tricycles, resulting in a fixed distance between the seat and the handlebars. Since different drivers have different arm lengths, for people with longer arms, the fixed distance means that their arms can only be straight when gripping the handlebars. Maintaining this posture for a long time can easily cause shoulder and arm muscle fatigue. In addition, the range of motion of the extended arm is limited when making emergency maneuvers, making it difficult to react quickly. On the other hand, people with shorter arms need to lean forward when trying to grip the handlebars, which not only makes the sitting posture extremely uncomfortable but also makes it difficult to apply force to the handlebars, resulting in a lack of stability and flexibility when operating the tricycle. To address this, we have provided a seat bracket for tricycles. Utility Model Content

[0004] This utility model provides a seat bracket for tricycles, which can adjust the distance between the seat and the tricycle handlebars according to the different arm lengths of the driver, so that drivers with different arm lengths can easily and effectively control the tricycle handlebars.

[0005] The purpose and function of this utility model for a tricycle seat bracket are achieved by the following specific technical means: A tricycle seat bracket, including a support plate:

[0006] The cushioned seat structure, located above the support plate, is used to cushion the vibrations of the tricycle while it is in motion, thereby improving the comfort of the driver.

[0007] The support assembly, located below the support plate, includes a U-shaped plate located below the support plate, a rotating rod rotatably connected to the U-shaped plate, a set of gears located outside the rotating rod, a toothed plate installed on the bottom surface of the support plate and meshing with the gears, a support structure located on the top of the U-shaped plate for stabilizing the support plate and the cushioning seat structure, and a locking structure located on one side of the U-shaped plate for preventing the rotating rod from rotating on its own.

[0008] Preferably, the cushioned seat structure includes two sets of support cylinders embedded in the upper surface of the support plate. Each support cylinder has a spring fixedly connected to its inner bottom wall, and each spring has a sliding column fixedly connected to its top end. The top ends of the two sets of sliding columns are fixedly connected to a seat plate. A set of dampers is installed on the bottom surface of the seat plate and the upper surface of the support plate.

[0009] Preferably, each of the seat plates has a cushion on its upper surface, and each cushion is made of latex material.

[0010] Preferably, the support structure of the bracket assembly includes a set of fixed frames fixedly connected to the top of the U-shaped plate, and an L-shaped plate is slidably connected to the inner wall of each fixed frame, with the top of each L-shaped plate connected to the bottom surface of the support plate.

[0011] Preferably, each of the L-shaped plates has a limiting groove on its bottom surface, and a limiting block is slidably connected to the inner wall of each limiting groove. The bottom end of each limiting block is connected to the inner bottom wall of the fixed frame.

[0012] Preferably, one end of the rotating rod extends to the outside of the U-shaped plate and is fixedly connected to a rotating handle, and the outer surface of the rotating handle is provided with anti-slip stripes.

[0013] Preferably, the locking structure of the bracket assembly includes through holes arranged in a ring on one side of the throttle, a positioning screw is inserted into the interior of one of the through holes, a nut is threaded onto the exterior of the positioning screw, and the other side of the nut is connected to one side of the U-shaped plate.

[0014] Preferably, one end of the positioning screw is fixedly connected to a connecting rope, and the other end of the connecting rope is connected to one side of the U-shaped plate.

[0015] Preferably, a support rod is installed on the upper surface of the bottom end of the U-shaped plate, and a set of sleeve frames are rotatably connected to the outer surface of the support rod. Each sleeve frame is fitted with a sleeve plate inside, and the top of each sleeve plate is hinged to the bottom surface of the support plate.

[0016] Preferably, the two sleeve frames are fixedly connected to each other on one side.

[0017] Beneficial effects:

[0018] 1. The cushioned seat structure can buffer vibrations for the driver and enhance the cushioning effect of the seat to prevent the driver's body from being subjected to severe shocks. The bracket assembly can drive the support plate and seat plate to move synchronously, and can adjust the distance between the seat plate and the tricycle handlebars according to the different arm lengths of the driver, so that drivers with different arm lengths can easily grasp the tricycle handlebars.

[0019] 2. The fixed frame and L-shaped plate provide real-time support for the support plate, ensuring stability after displacement of the support plate and base plate. The through holes, positioning screws and nuts stabilize the rotating plate and rotating rod, improving the firmness of the gear's adjustment of the gear plate position and preventing the base plate from shifting on its own. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the support assembly of this utility model from the side view.

[0022] Figure 3 This is a three-dimensional structural schematic diagram of the side sectional view of the fixed frame of this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the frame of this utility model.

[0024] Figure 5 This is an exploded structural diagram of the rotating plate of this utility model.

[0025] Figure 6 This is a three-dimensional structural schematic diagram of a partial cross-sectional view of the buffer seat structure of this utility model.

[0026] Figure 1-6 In the diagram, the correspondence between component names and drawing numbers is as follows:

[0027] 1. Support plate; 2. Bracket assembly; 201. U-shaped plate; 202. Rotating rod; 203. Gear; 204. Toothed plate; 205. Fixing frame; 206. L-shaped plate; 207. Limiting groove; 208. Limiting block; 209. Turning handle; 210. Through hole; 211. Positioning screw; 212. Nut; 213. Connecting rope; 214. Support rod; 215. Sleeve frame; 216. Sleeve plate; 217. Reinforcing rod; 3. Buffer seat structure; 301. Support cylinder; 302. Spring; 303. Sliding column; 304. Seat plate; 305. Damper; 306. Seat cushion. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0029] As attached Figure 1 With appendix Figure 6As shown: A seat bracket for a tricycle includes a support plate 1 and a cushioning seat structure 3, which is disposed above the support plate 1 to cushion the vibrations during tricycle operation, thereby improving the comfort of the driver. The cushioning seat structure 3 includes two sets of support cylinders 301 embedded in the upper surface of the support plate 1. A spring 302 is fixedly connected to the inner bottom wall of each support cylinder 301, and a sliding column 303 is fixedly connected to the top of each spring 302. The tops of the two sets of sliding columns 303 are jointly fixedly connected to a seat plate 304. The seat plate 304 is fixedly connected to the two sets of sliding columns 303. The elasticity of 302 can buffer the vibration of the seat plate 304, thereby improving the comfort of the driver. A set of dampers 305 is installed on the bottom surface of the seat plate 304 and the upper surface of the support plate 1. The dampers 305 further ensure the stability of the seat plate 304, thereby improving its shock absorption effect. Each seat plate 304 has a cushion 306 on its upper surface. Each cushion 306 is made of latex material. The cushion 306 can improve the comfort of the driver sitting on the seat plate 304.

[0030] Second Embodiment

[0031] As attached Figure 1 To be continued Figure 5 As shown: Support assembly 2, located below support plate 1, includes a U-shaped plate 201 located below support plate 1, a rotating rod 202 rotatably connected to the U-shaped plate 201, a set of gears 203 located outside the rotating rod 202, and a toothed plate 204 installed on the bottom surface of support plate 1 and meshing with the gears 203. One end of the rotating rod 202 extends to the outside of the U-shaped plate 201 and is fixedly connected to a handle 209. The outer surface of the handle 209 is provided with anti-slip stripes. The handle 209 allows the driver to more easily rotate the rotating rod 202. When the rotating rod 202 rotates, it drives the gears 203 to rotate. At the same time, the gears 203 drive the toothed plate 204 to move. The toothed plate 204 then pushes the support plate 1 to move. The support plate 1 causes the seat plate 304 to move, thereby adjusting the seat plate. The spacing between the 304 and the tricycle handlebars allows drivers of different arm lengths to easily control the tricycle handlebars. A support rod 214 is installed on the upper surface of the bottom end of the U-shaped plate 201. A set of sleeve frames 215 is rotatably connected to the outer surface of the support rod 214. Each sleeve frame 215 has a sleeve plate 216 inside. The top of each sleeve plate 216 is hinged to the bottom surface of the support plate 1. When the support plate 1 moves, it will simultaneously pull the sleeve plate 216 to move within the sleeve frame 215. The sleeve plate 216 will further stabilize the support plate 1 after the displacement. A reinforcing rod 217 is fixedly connected to the side of the two sleeve frames 215 that are close to each other. The reinforcing rod 217 can be used to reinforce the connection between the sleeve frames 215, enhancing the stability and reliability of the sleeve frames 215 in the overall structure.

[0032] A support structure is installed on the top of the U-shaped plate 201 to stabilize the support plate 1 and the cushioning seat structure 3. The support structure of the bracket assembly 2 includes a set of fixed frames 205 fixedly connected to the top of the U-shaped plate 201. An L-shaped plate 206 is slidably connected to the inner wall of each fixed frame 205. The top of each L-shaped plate 206 is connected to the bottom surface of the support plate 1. When the support plate 1 moves, it synchronously drives the L-shaped plate 206 to slide inside the fixed frame 205. The L-shaped plate 206 will always maintain support for the support plate 1. To enhance the stability of the support plate 1 supporting the seat plate 304, each L-shaped plate 206 has a limiting groove 207 on its bottom surface. The inner wall of each limiting groove 207 is slidably connected to a limiting block 208. The bottom end of each limiting block 208 is connected to the inner bottom wall of the fixed frame 205. By utilizing the cooperation between the limiting groove 207 and the limiting block 208, the displacement of the L-shaped plate 206 inside the fixed frame 205 can be limited, so as to prevent the L-shaped plate 206 from sliding too far, causing the gear 203 and the toothed plate 204 to separate.

[0033] A locking structure is provided on one side of the U-shaped plate 201 to prevent the rotating rod 202 from rotating on its own. The locking structure of the bracket assembly 2 includes through holes 210 arranged in a ring on one side of the throttle 209. A positioning screw 211 is inserted into the interior of one of the through holes 210. A nut 212 is threaded onto the outside of the positioning screw 211. The other side of the nut 212 is connected to one side of the U-shaped plate 201. By inserting the positioning screw 211 into the through hole 210 corresponding to the nut 212 and then rotating the connection between the positioning screw 211 and the nut 212, the throttle 209 is stabilized, preventing the seat plate 304 from shifting on its own. A connecting rope 213 is fixedly connected to one end of the positioning screw 211. The other end of the connecting rope 213 is connected to one side of the U-shaped plate 201. The connecting rope 213 can be used to connect the positioning screw 211 to the U-shaped plate 201, which can prevent the positioning screw 211 from being lost.

[0034] Working principle: When adjusting the position of the seat plate 304, first loosen the positioning screw 211 to disengage it from the nut 212, then disengage the positioning screw 211 from the through hole 210, and then turn the throttle 209. The rotating rod 202 will drive the gear 203 to rotate, and at the same time, the gear 203 will push the toothed plate 204 to move. The toothed plate 204 will drive the support plate 1 to move, and the support plate 1 will pull the L-shaped plate 206 to extend from the fixed frame 205 to support the support plate 1. At the same time, the support plate 1 will drive the seat plate 304 to move, adjusting the distance between the seat plate 304 and the tricycle handlebars. Then, re-insert the positioning screw 211 into the through hole 210 corresponding to the nut 212, and connect the positioning screw 211 and the nut 212 to stabilize the throttle 209 and prevent the seat plate 304 from shifting on its own, so that drivers with different arm lengths can easily control the tricycle handlebars.

Claims

1. A seat bracket for a tricycle, characterized in that, Including support plate (1): The cushioning seat structure (3) is located above the support plate (1) and is used to cushion the vibration of the tricycle while it is in motion, thereby improving the comfort of the driver. The bracket assembly (2) is located below the support plate (1) and includes a U-shaped plate (201) located below the support plate (1), a rotating rod (202) rotatably connected to the U-shaped plate (201), a set of gears (203) located outside the rotating rod (202), a toothed plate (204) installed on the bottom surface of the support plate (1) and meshing with the gears (203), a support structure located on the top of the U-shaped plate (201) for stabilizing the support plate (1) and the buffer seat structure (3), and a locking structure located on one side of the U-shaped plate (201) for preventing the rotating rod (202) from rotating on its own.

2. The tricycle seat bracket according to claim 1, characterized in that: The buffer seat structure (3) includes two sets of support cylinders (301) embedded in the upper surface of the support plate (1). Each support cylinder (301) has a spring (302) fixedly connected to its inner bottom wall. Each spring (302) has a sliding column (303) fixedly connected to its top end. The top ends of the two sets of sliding columns (303) are fixedly connected to a seat plate (304). The bottom surface of the seat plate (304) and the upper surface of the support plate (1) are jointly equipped with a set of dampers (305).

3. The tricycle seat bracket according to claim 2, characterized in that: Each of the seat plates (304) has a cushion (306) on its upper surface, and each of the cushions (306) is made of latex material.

4. The tricycle seat bracket according to claim 1, characterized in that: The support structure of the bracket assembly (2) includes a set of fixed frames (205) fixedly connected to the top of the U-shaped plate (201). Each fixed frame (205) has an L-shaped plate (206) slidably connected to its inner wall. The top of each L-shaped plate (206) is connected to the bottom surface of the support plate (1).

5. The tricycle seat bracket according to claim 4, characterized in that: Each L-shaped plate (206) has a limiting groove (207) on its bottom surface. Each limiting groove (207) has a limiting block (208) slidably connected to its inner wall. The bottom end of each limiting block (208) is connected to the inner bottom wall of the fixed frame (205).

6. The tricycle seat bracket according to claim 1, characterized in that: One end of the rotating rod (202) extends to the outside of the U-shaped plate (201) and is fixedly connected to the handle (209). The outer surface of the handle (209) is provided with anti-slip stripes.

7. The tricycle seat bracket according to claim 1, characterized in that: The locking structure of the bracket assembly (2) includes through holes (210) arranged in a ring on one side of the throttle (209). A positioning screw (211) is inserted into the interior of one of the through holes (210). A nut (212) is threaded onto the outside of the positioning screw (211). The other side of the nut (212) is connected to one side of the U-shaped plate (201).

8. The tricycle seat bracket according to claim 7, characterized in that: One end of the positioning screw (211) is fixedly connected to a connecting rope (213), and the other end of the connecting rope (213) is connected to one side of the U-shaped plate (201).

9. The tricycle seat bracket according to claim 1, characterized in that: A support rod (214) is installed on the upper surface of the bottom end of the U-shaped plate (201). A set of sleeves (215) is rotatably connected to the outer surface of the support rod (214). Each sleeve (215) is fitted with a sleeve plate (216). The top of each sleeve plate (216) is hinged to the bottom surface of the support plate (1).

10. The tricycle seat bracket according to claim 9, characterized in that: The two sleeve frames (215) are fixedly connected to each other on one side with a reinforcing rod (217).