Foldable backrest structure for motorcycle
By designing a foldable backrest structure and using components such as bolts, struts and torsion springs to achieve rapid state switching of the motorcycle backrest, the problems of motorcycle backrest occupying space and inconvenient function switching are solved, and the flexibility and comfort of riding are improved.
Patent Information
- Application Number
- CN202422270120.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-09-18
AI Technical Summary
The existing motorcycle backrest structure occupies the rear seat space during short-distance riding in the city and lacks a flexible function switching design, resulting in inconvenience in use.
A foldable backrest structure is designed, which can achieve rapid state switching by pressing a plastic button. It includes fixed and rotating connections of components such as bolts, struts, bushings, nuts, and backrest base, and uses torsion springs and compression springs to ensure simple and stable operation.
The backrest status can be quickly switched in single-person and two-person riding scenarios, which improves the applicability and ease of use of the motorcycle and meets different riding needs.
Smart Images
Figure CN223371015U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of backrests, and more particularly to a foldable backrest structure for a motorcycle. Background Art
[0002] Long-distance motorcycle riding has become a common pursuit for most riders. In order to ensure sufficient comfort during riding, many vehicles have added motorcycle backrests to relieve the fatigue of the rider's waist during long-distance riding. The motorcycle backrest is a component installed on the rear seat of the motorcycle or behind the driver's seat to provide support and comfort for the passengers and increase safety. The backrest can prevent the passengers from falling backwards during sudden braking or sharp turns to a certain extent. It provides passengers with a place to grip or lean on, which helps to maintain body balance and reduce the possibility of accidents.
[0003] However, the addition of a backrest and a bracket structure to a motorcycle will result in a loss of rear seat space, which is not very convenient for short-distance riding on urban paved roads when two people need to ride on the motorcycle. Moreover, there are currently few structures in China that integrate a motorcycle backrest and rear seat cushion and can switch functions at any time. Some structures that can be assembled on the market are also very complicated.
[0004] Therefore, in order to solve the above problems, a foldable backrest structure for a motorcycle is proposed. Utility Model Content
[0005] In order to overcome the shortcomings of the existing technology, the purpose of the utility model is to provide a foldable backrest structure for a motorcycle, which can be achieved by pressing a plastic button. The operation is simple and quick, and it is convenient for the rider to quickly adjust the backrest state in different riding scenarios.
[0006] The above technical objectives of the present invention are achieved through the following technical solutions:
[0007] A foldable backrest structure for a motorcycle, comprising bolts, a left support rod, a right support rod, a bushing, a nut, a backrest base, a backrest, a backrest base fixing bolt, a steel bracket, an adjustment base, a threaded plug, a compression spring, a torsion spring bushing, an adjustment rod, a plastic button, a torsion spring, a backrest fixing bolt and a base fixing bolt, wherein the bottom end of the steel bracket is equipped with an adjustment base, the base fixing bolt passes through the adjustment base and the steel bracket, and the bushing is sleeved on the middle part of the base fixing bolt and is located at the top end of the steel bracket.
[0008] Furthermore, the rear end of the backrest base is located inside the steel bracket, the steel bracket is located on the inner side of the left strut and the right strut, the bolts all pass through the left strut, the steel bracket, the backrest base, and the right strut, the nut is sleeved on the middle part of the bolt and located at the right end of the right strut, and the nut is threadedly connected to the bolt.
[0009] Furthermore, the top end of the backrest base is detachably connected to the backrest, and the backrest base fixing bolt passes through the backrest base and is threadedly connected to the backrest.
[0010] Furthermore, the backrest fixing bolts pass through the adjustment base, the steel bracket, and the backrest base, and the backrest fixing bolts are all threadedly connected to the adjustment base, the steel bracket, and the backrest base.
[0011] Furthermore, the torsion spring is sleeved on the middle part of the backrest fixing bolt and is located inside the adjustment base, and the torsion spring bushing is sleeved on the middle part of the torsion spring.
[0012] Furthermore, the adjustment rod, compression spring, and threaded plug are all installed inside the backrest base, and the adjustment rod passes through the backrest base and the adjustment base and is threadedly connected to a plastic button.
[0013] In summary, the present invention has the following beneficial effects:
[0014] (1) This solution meets different riding needs: it can provide waist support for the rider when riding alone to relieve waist fatigue, and it can quickly switch to a flat state when two people need to be carried, providing sufficient riding space, greatly improving the applicability of the motorcycle.
[0015] (2) This solution is easy to install. The various components are fixed to the motorcycle through base fixing bolts, backrest fixing bolts, etc., without the need for complicated installation procedures. It can be used for most single-seat motorcycles.
[0016] (3) This solution is easy to operate. Switching between single-person riding and two-person riding modes can be achieved by pressing a plastic button. The operation is simple and quick, allowing the rider to quickly adjust the backrest status in different riding scenarios and automatically reset. When switching from two-person riding mode to single-person riding mode, the unlocked backrest base can be quickly rotated to a position suitable for single-person riding under the action of the torsion spring, without the need for additional operation, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Schematic diagram of the overall three-dimensional structure of this embodiment;
[0018] Figure 2 This is a schematic diagram of the overall structure of the embodiment when viewed from above;
[0019] Figure 3 1 is a schematic diagram of the overall top view of the structure of this embodiment;
[0020] Figure 4 It is a schematic diagram of the overall split structure in this embodiment.
[0021] In the figure, 1. bolt; 2. left support rod; 3. right support rod; 4. bushing; 5. nut; 6. backrest base; 7. backrest; 8. backrest base fixing bolt; 9. steel bracket; 10. adjustment base; 11. threaded plug; 12. compression spring; 13. torsion spring bushing; 14. adjustment rod; 15. plastic button; 16. torsion spring; 17. backrest fixing bolt; 18. base fixing bolt. DETAILED DESCRIPTION
[0022] The present invention will be described in further detail below with reference to the accompanying drawings.
[0023] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.
[0024] Reference Figure 1-4 As shown, a foldable backrest structure for a motorcycle in a preferred embodiment of the present utility model includes a bolt 1, a left support rod 2, a right support rod 3, a bushing 4, a nut 5, a backrest base 6, a backrest 7, a backrest base fixing bolt 8, a steel bracket 9, an adjustment base 10, a threaded plug 11, a compression spring 12, a torsion spring bushing 13, an adjustment rod 14, a plastic button 15, a torsion spring 16, a backrest fixing bolt 17 and a base fixing bolt 18. The bottom end of the steel bracket 9 is equipped with an adjustment base 10, the base fixing bolt 18 passes through the adjustment base 10 and the steel bracket 9, and the bushing 4 is sleeved on the middle part of the base fixing bolt 18 and is located at the top end of the steel bracket 9.
[0025] The rear end of the backrest base 6 is located inside the steel bracket 9, and the steel bracket 9 is located on the inner side of the left strut 2 and the right strut 3. The bolts 1 pass through the left strut 2, the steel bracket 9, the backrest base 6, and the right strut 3. The nut 5 is installed in the middle of the bolt 1 and is located at the right end of the right strut 3. The nut 5 is threadedly connected to the bolt 1.
[0026] The top end of the backrest base 6 is detachably connected to the backrest 7 , and the backrest base fixing bolt 8 passes through the backrest base 6 and is threadedly connected to the backrest 7 .
[0027] The backrest fixing bolts 17 pass through the adjustment base 10 , the steel bracket 9 , and the backrest base 6 , and the backrest fixing bolts 17 are all threadedly connected to the adjustment base 10 , the steel bracket 9 , and the backrest base 6 .
[0028] The torsion spring 16 is sleeved on the middle portion of the backrest fixing bolt 17 and is located inside the adjustment base 10 . The torsion spring bushing 13 is sleeved on the middle portion of the torsion spring 16 .
[0029] The adjusting rod 14 , the compression spring 12 , and the threaded plug 11 are all installed inside the backrest base 6 , and the adjusting rod 14 passes through the backrest base 6 and the adjusting base 10 and is threadedly connected with a plastic button 15 .
[0030] Working principle: the entire folding backrest structure is fixed to the rear of the motorcycle seat, and the steel bracket 9 and the adjustment base 10 are fixed to the rear of the existing motorcycle seat through three base fixing bolts 18. In order to ensure that the entire mechanism does not interfere with the motorcycle seat during movement, three bushings 4 are used to increase the safety gap. The upper end of the left support rod 2, the upper end of the right support rod 3, the steel bracket 9, and the adjustment base 10 are fixedly connected through bolts 1 and nuts 5. The lower end of the left support rod 2, the lower end of the right support rod 3 and the motorcycle frame body are fixedly connected through bolts. In this way, the left support rod 2 and the right support rod 3 will form a stable triangular fixation for the motorcycle seat and the folding backrest structure, which can increase the load-bearing and compressive resistance of the entire mechanism. The joint base 10 and the backrest base 6 are hingedly connected by the backrest fixing bolt 17. The backrest base 6 can rotate around the central axis of the backrest fixing bolt 17 during the movement of the folding backrest structure. The torsion spring bushing 13 and the torsion spring 16 are synchronously fixed on the axis of the backrest fixing bolt 17. The front line of the torsion spring 16 is hooked on the adjustment base 10, and the rear line of the torsion spring 16 is hooked on the backrest base 6. During the movement of the entire folding backrest structure, the torsion spring 16 will bear the torsion force, and the torsion force can eliminate the vibration and sound caused by the installation gap between the adjustment base 10 and the backrest base. The torsion spring bushing 13 is installed inside the torsion spring 16 to support the torsion spring 16, which can prevent the torsion spring 16 from producing large changes during work. The adjustment rod 14, compression spring 12 and threaded plug 11 are installed inside the backrest base 6. The adjustment rod 14 will extend a certain length of the backrest base 6 and pass through the U-shaped slot of the adjustment base 10. The part of the adjustment rod 14 passing through the U-shaped slot of the adjustment base 10 can just tighten the plastic button 15 through a thread. When the backrest base 6 rotates along the back fixing bolt 17, the adjustment rod 14 will move in the U-shaped slot of the adjustment base 10. The length of the U-shaped slot of the adjustment base 10 will directly determine the rotatable angle of the backrest base 6. During the entire movement process of the folding backrest, the angle of the backrest when it is laid flat and erected is set to 54°. A cylindrical portion is machined at the upper end of the U-shaped slot of the adjustment base 6. When the backrest base 6 is manually turned to the vertical position, the adjusting rod 14 will enter the cylindrical surface at the upper end of the U-shaped slot of the adjusting base 6 under the elastic force of the compression spring 12, locking the backrest base 6. When the backrest base 6 needs to be flattened, it is only necessary to press the plastic button 15, and the adjusting rod 14 will move inward to exit the cylindrical surface at the upper end of the U-shaped slot of the adjusting base 6, so that the backrest base 6 is unlocked. The unlocked backrest base 6 will rotate rapidly under the action of the torsion spring 16 until the backrest base 6 is in a flat position. The backrest 7 and the backrest base 6 are fixed by three backrest base fixing bolts 8. During the entire folding backrest movement, the backrest 7 and the backrest base 6 move synchronously.
[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A foldable backrest structure for a motorcycle, characterized by: The utility model comprises a bolt (1), a left support rod (2), a right support rod (3), a bushing (4), a nut (5), a backrest base (6), a backrest (7), a backrest base fixing bolt (8), a steel bracket (9), an adjustment base (10), a threaded plug (11), a compression spring (12), a torsion spring bushing (13), an adjustment rod (14), a plastic button (15), a torsion spring (16), a backrest fixing bolt (17) and a base fixing bolt (18), wherein the bottom end of the steel bracket (9) is provided with an adjustment base (10), the base fixing bolt (18) passes through the adjustment base (10) and the steel bracket (9), and the bushing (4) is sleeved on the middle part of the base fixing bolt (18) and is located at the top end of the steel bracket (9).
2. The foldable backrest structure for a motorcycle according to claim 1, characterized in that: The rear end of the backrest base (6) is located inside the steel bracket (9), and the steel bracket (9) is located inside the left support rod (2) and the right support rod (3). The bolts (1) all pass through the left support rod (2), the steel bracket (9), the backrest base (6), and the right support rod (3). The nut (5) is fitted on the middle part of the bolt (1) and is located at the right end of the right support rod (3). The nut (5) is threadedly connected to the bolt (1).
3. The foldable backrest structure for a motorcycle according to claim 1, characterized in that: The top end of the backrest base (6) is detachably connected to the backrest (7), and the backrest base fixing bolt (8) passes through the backrest base (6) and is threadedly connected to the backrest (7).
4. The foldable backrest structure for a motorcycle according to claim 1, characterized in that: The backrest fixing bolts (17) pass through the adjustment base (10), the steel bracket (9), and the backrest base (6), and the backrest fixing bolts (17) are all threadedly connected to the adjustment base (10), the steel bracket (9), and the backrest base (6).
5. The foldable backrest structure for a motorcycle according to claim 1, characterized in that: The torsion spring (16) is sleeved on the middle part of the backrest fixing bolt (17) and is located inside the adjustment base (10), and the torsion spring bushing (13) is sleeved on the middle part of the torsion spring (16).
6. The foldable backrest structure for a motorcycle according to claim 1, characterized in that: The adjusting rod (14), the compression spring (12), and the threaded plug (11) are all installed inside the backrest base (6), and the adjusting rod (14) passes through the backrest base (6) and the adjusting base (10) and is threadedly connected with a plastic button (15).