Backrest support, tricycle seat and tricycle
By designing a new backrest support structure, including a backrest connection part and a seat connection part, the problem of space occupation of the tricycle backrest support when getting on and off the vehicle is solved, achieving greater convenience and stability.
Patent Information
- Application Number
- CN202521818339.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-25
AI Technical Summary
The existing tricycle backrest support structure takes up space when users get on and off the vehicle, making it inconvenient.
Design a backrest support, including a backrest connecting part, an extension part and a seat connecting part. One end of the extension part is fixed to the backrest connecting part, and the other end extends downward to the side of the seat cushion away from the steering wheel and connects to the seat connecting part, so as to avoid occupying the space on both sides and the front of the seat.
It improves the convenience of getting on and off the vehicle, reduces the space occupied by the backrest bracket, and enhances the user's experience when getting on and off the vehicle.
Smart Images
Figure CN224676273U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transportation technology, and in particular to a backrest bracket, a tricycle seat, and a tricycle. Background Technology
[0002] Tricycles, as a widely used mode of transportation, have the advantages of strong applicability and maneuverability. Currently, some recreational tricycles are divided into front and rear rows, with the front row for the driver and the rear row for passengers. Both rows have backrests, and currently, the backrests are mostly of the curved tube type, such as... Figure 1 As shown, by bending a steel pipe into a support, the end of the support away from the handlebar is connected to the backrest. Then the support extends towards the handlebar to both sides of the seat near the handlebar and is connected and fixed to the support components at the bottom of the seat. This shape reduces the space for the user to get in and out of the vehicle, causing inconvenience. Utility Model Content
[0003] The purpose of this utility model is to provide a backrest bracket, a tricycle seat, and a tricycle that can improve the convenience of users getting on and off the vehicle.
[0004] To achieve the above objectives, this utility model provides the following solution:
[0005] This utility model provides a backrest bracket, including a backrest connecting part, an extension part, and a seat connecting part. The backrest connecting part is used to support the backrest of a tricycle. The extension part is symmetrically arranged on both sides of the backrest connecting part. One end of the extension part is fixedly connected to the backrest connecting part, and the other end extends downward to both sides of the end of the seat cushion away from the handle and connects to the end of the seat connecting part away from the handle. The end of the seat connecting part near the handle is fixedly connected to both sides of the support member at the bottom of the seat cushion.
[0006] In some embodiments, the backrest connection, the extension, and the seat connection are integrally formed steel plates, and reinforcing steel plates are also provided at the extension and the seat connection.
[0007] In some embodiments, the backrest connecting part, the extension part and the seat connecting part are integrally formed steel pipes, and the steel pipes are bent to form the backrest connecting part, the extension part and the seat connecting part.
[0008] In some embodiments, the extension and the backrest connection are both coplanar with the backrest.
[0009] In some embodiments, armrests are also included, which are disposed on both sides of the seat cushion and respectively connected to the seat connection portion located on the same side.
[0010] In some embodiments, the armrest is connected to the seat connection part located on the same side via a telescopic rod; the bottom side of the armrest is fixedly connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the top of the seat connection part.
[0011] In some embodiments, there are two telescopic rods, which are respectively located at one end of the handrail near the handle and the other end away from the handle, and the two telescopic rods are arranged vertically and parallel to each other.
[0012] In some embodiments, the surfaces of the backrest connection, the extension, and the seat connection are subjected to electrophoretic treatment.
[0013] This utility model also provides a tricycle seat, including a backrest, a support component, and a seat cushion disposed on the support component. The backrest is fixedly connected to both sides of the bottom support component of the seat cushion via the backrest bracket described in any of the above-mentioned embodiments.
[0014] This utility model also provides a tricycle, including a frame, a handlebar disposed at the front end of the frame, and the tricycle seat described above, wherein the tricycle seat is installed in the middle and rear of the frame.
[0015] The present invention achieves the following technical advantages over the prior art:
[0016] This utility model provides a backrest bracket, a tricycle seat, and a tricycle. One end of the extension is fixedly connected to the backrest connecting part, and the other end extends directly downward to both sides of the seat cushion away from the handle and connects to the seat connecting part away from the handle. The seat connecting part is fixedly connected to both sides of the bottom support component of the seat cushion. The extension is located at the seat cushion away from the handle and does not occupy the space on both sides and the front of the seat. When the user gets on and off the vehicle, the extension will not obstruct the user, thereby increasing the space for the user to get on and off the vehicle and improving the convenience of getting on and off the vehicle. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the backrest support structure in the prior art;
[0019] Figure 2 This is a schematic diagram of the backrest support structure in one embodiment of this invention;
[0020] In the diagram: 1-backrest connection; 2-extension; 3-seat connection; 4-armrest; 5-backrest. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] The purpose of this utility model is to provide a backrest bracket, a tricycle seat, and a tricycle that can improve the convenience of users getting on and off the vehicle.
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0024] Example 1
[0025] This embodiment provides a backrest support, such as Figure 2 As shown, the tricycle includes a backrest connecting part 1, an extension part 2, and a seat connecting part 3. The backrest connecting part 1 supports the backrest 5 on the tricycle. The extension part 2 is symmetrically arranged on both sides of the backrest connecting part 1. One end of the extension part 2 is fixedly connected to the backrest connecting part 1, and the other end extends downward to both sides of the seat cushion away from the handlebar and connects to the seat connecting part 3 away from the handlebar. The seat connecting part 3 is fixedly connected to both sides of the support member at the bottom of the seat cushion. The extension part 2 is located at the seat cushion away from the handlebar and does not occupy the space on both sides and the front of the seat. When the user gets on and off the vehicle, the extension part 2 will not obstruct the user, thereby increasing the space for the user to get on and off the vehicle and improving the convenience of the user getting on and off the vehicle.
[0026] In some implementations of this embodiment, such as Figure 2As shown, the backrest connecting part 1, the extension part 2, and the seat connecting part 3 are all integrally formed steel plates. The integrally formed steel plates are processed by stamping, forging, and other processes, avoiding stress concentration problems caused by welding or splicing. The overall structure is more evenly stressed, and the resistance to deformation and fracture is significantly improved. Especially when the tricycle is bumpy, heavily loaded, or under emergency braking, it can more stably support the backrest 5 and reduce safety hazards caused by the breakage of the backrest support. Reinforcing steel plates are also provided at the extension part 2 and the seat connecting part 3. Since the extension part 2 and the seat connecting part 3 transfer the load on the backrest 5 to the bottom support component of the seat cushion, the reinforcement steel plates increase the strength of the extension part 2 and the seat connecting part 3, further improving the resistance to deformation and fracture of the extension part 2 and the seat connecting part 3.
[0027] In some embodiments of this example, the backrest connecting part 1, the extension part 2, and the seat connecting part 3 are integrally formed steel pipes. The steel pipes are bent to form the backrest connecting part 1, the extension part 2, and the seat connecting part 3. The integrally formed steel pipes avoid the weak points at the welded joints. Moreover, the steel pipe structure has a relatively balanced axial bending resistance and radial torsional resistance, which can better cope with the loads of frequent bumps, turns, or emergency braking during the operation of the tricycle, and reduce the risk of deformation or breakage of the backrest support.
[0028] Furthermore, bolt holes are provided between the seat connecting part 3 and the support component at the bottom of the seat cushion. The seat connecting part 3 and the support component at the bottom of the seat cushion are connected by passing bolts through the bolt holes in the seat connecting part 3 and the support component at the bottom of the seat cushion in sequence and tightening the bolts.
[0029] In some embodiments of this example, the extension 2 and the backrest connection 1 are both coplanar with the backrest 5, so that the load on the backrest 5 is transferred more evenly and directly to the support member at the bottom of the seat cushion along the extension 2 and the backrest connection 1, reducing stress concentration points caused by changes in the load transfer path and direction.
[0030] Furthermore, the angle between the extension 2 and the seat connection 3 is 100° to 130°. On the one hand, this makes the force transmission path smoother and prevents sudden changes in direction, thereby reducing local stress peaks. On the other hand, this angle can provide users with a more comfortable backrest angle and improve the user's driving experience.
[0031] In some implementations of this embodiment, such as Figure 2As shown, the backrest support also includes armrests 4, which are located on both sides of the seat cushion and connected to the seat connection parts 3 on the same side. By setting independent armrests 4, users are provided with stable grip points. The inertia can be countered by the force exerted by the arms, avoiding loss of balance when encountering bumps, sudden braking or turning while driving the tricycle. At the same time, the armrests 4 can be used as a leverage point when getting on and off the vehicle. During long rides, the user can relax naturally with their back against the backrest 5 and their arms resting on the armrests 4, reducing pressure on the waist and legs.
[0032] In some embodiments of this example, the armrest 4 is connected to the seat connection part on the same side via a telescopic rod. The bottom side of the armrest 4 is fixedly connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the top of the seat connection part 3. By extending or shortening the length of the telescopic rod, the height of the armrest 4 can be adjusted. When the user gets on or off the vehicle, the length of the telescopic rod is shortened to reduce the obstruction caused by the armrest 4 to the passenger. When the user is riding, the length of the telescopic rod is extended to support the user's arms and provide the user with a stable grip point.
[0033] In some embodiments of this example, the telescopic rod includes an inner rod and an outer sleeve. An elastic protrusion is provided on the side wall of the inner rod, and multiple small holes are evenly distributed along the height direction of the telescopic rod on the outer wall of the sleeve. The elastic protrusion extends out of the small holes to engage and fix the inner rod and the sleeve, thus fixing the height of the handrail 4. When the height of the handrail 4 needs to be adjusted, the elastic protrusion is pressed until it is flush with the outer wall of the inner rod. The inner rod can then slide within the sleeve until the handrail 4 is adjusted to a suitable height. Afterward, the elastic protrusion extends out of the small holes and re-engages and fixes the inner rod and the sleeve. In some embodiments of this example, the telescopic rod can also be an electric telescopic rod or a telescopic hydraulic cylinder.
[0034] In some embodiments of this example, there are two telescopic rods, which are respectively located at the end of the handrail 4 near the handle and the end away from the handle. The two telescopic rods are arranged vertically and parallel to provide stable support for the handrail 4.
[0035] In some embodiments of this example, the surfaces of the backrest connection 1, the extension 2, and the seat connection 3 are subjected to electrophoretic treatment. A uniform and dense protective film is formed on the surfaces of the backrest connection 1, the extension 2, and the seat connection 3 through the electrophoretic process, thereby solving the problem of corrosion and rust prevention of the backrest connection 1, the extension 2, and the seat connection 3 in outdoor rainy and humid environments and improving their durability.
[0036] In some embodiments of this example, the exposed surfaces of the extension 2 and the seat connection 3 need to be sprayed to make the backrest bracket coordinated with the appearance of the backrest and the seat.
[0037] Example 2
[0038] This embodiment provides a tricycle seat, including a backrest 5, a support component, and a seat cushion disposed on the support component. The backrest 5 is fixedly connected to both sides of the bottom support component of the seat cushion through the backrest bracket. The extension 2 of the backrest bracket does not occupy the space on both sides and the front of the seat. When the user gets on and off the vehicle, the extension 2 will not obstruct the user, thereby increasing the space for the user to get on and off the vehicle and thus improving the convenience of the user getting on and off the vehicle.
[0039] Example 3
[0040] This embodiment provides a tricycle, including a frame, a handlebar located at the front of the frame, and the aforementioned tricycle seat. The tricycle seat is installed in the middle and rear of the frame. The tricycle seat in the middle is used for the driver, and the tricycle seat in the rear is used for the passenger. By using the backrest bracket in Embodiment 1 on the tricycle seat, the backrest bracket will not obstruct the user and will increase the space for the user to get on and off the vehicle, thereby improving the convenience of the user getting on and off the vehicle.
[0041] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A backrest support, characterized in that, It includes a backrest connecting part, an extension part, and a seat connecting part. The backrest connecting part is used to support the backrest of the tricycle. The extension part is symmetrically arranged on both sides of the backrest connecting part. One end of the extension part is fixedly connected to the backrest connecting part, and the other end extends downward to both sides of the seat cushion away from the handle and connects to the seat connecting part away from the handle. The seat connecting part is fixedly connected to both sides of the support member at the bottom of the seat cushion at the end close to the handle.
2. The backrest support according to claim 1, characterized in that, The backrest connecting part, the extension part and the seat connecting part are integrally formed steel plates, and the extension part and the seat connecting part are also provided with reinforcing steel plates.
3. The backrest support according to claim 1, characterized in that, The backrest connecting part, the extension part and the seat connecting part are integrally formed steel pipes, and the steel pipes are bent to form the backrest connecting part, the extension part and the seat connecting part.
4. The backrest support according to claim 1, characterized in that, Both the extension and the backrest connection are coplanar with the backrest.
5. The backrest support according to claim 1, characterized in that, It also includes armrests, which are located on both sides of the seat cushion and connected to the seat connecting parts located on the same side.
6. The backrest support according to claim 5, characterized in that, The armrest is connected to the seat connection part on the same side via a telescopic rod; the bottom side of the armrest is fixedly connected to one end of the telescopic rod, and the other end of the telescopic rod is fixedly connected to the top of the seat connection part.
7. The backrest support according to claim 6, characterized in that, The number of telescopic rods is two, and the telescopic rods are respectively set at one end of the handrail near the direction handle and the other end away from the direction handle. The two telescopic rods are arranged vertically and parallel to each other.
8. The backrest support according to claim 2, characterized in that, The surfaces of the backrest connection, the extension, and the seat connection are subjected to electrophoretic treatment.
9. A tricycle seat, characterized in that, It includes a backrest, a support component, and a seat cushion disposed on the support component, wherein the backrest is fixedly connected to both sides of the bottom support component of the seat cushion by a backrest bracket as described in any one of claims 1 to 8.
10. A tricycle, characterized in that, It includes a frame, a handlebar disposed at the front end of the frame, and a tricycle seat as described in claim 9, wherein the tricycle seat is mounted in the middle and rear of the frame.