Frame with damping effect
By introducing a worm gear mechanism and hydraulic shock absorbers into the electric motorcycle frame, the problems of battery bracket compatibility and shock absorption have been solved, enabling flexible battery installation and adaptability to various terrains, thus improving the flexibility of battery installation and riding comfort.
Patent Information
- Application Number
- CN202520322969.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing battery brackets for electric motorcycles are of a fixed size, which cannot accommodate batteries of different sizes or the need for multiple batteries to be stacked. This means that when replacing batteries or extending the range, it is necessary to customize the bracket or modify the frame, which increases costs and affects safety.
A flexible hinge assembly comprising a worm gear mechanism and a hydraulic shock absorber was designed. The worm gear mechanism enables flexible clamping and fixing of the battery to accommodate batteries of different sizes, while the hydraulic shock absorber and shock-absorbing spring achieve a dual shock absorption effect to adapt to various terrains.
It enables compatibility with batteries of different sizes and the stacking of multiple batteries, improving the flexibility and safety of battery installation, while providing excellent shock absorption under different road conditions, thus enhancing riding comfort.
Smart Images

Figure CN223702842U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of motorcycle frame, and relates to a frame with damping effect. BACKGROUND
[0002] The electric motorcycle is a kind of motorcycle using battery-driven motor as power source, and the working principle of the electric motorcycle is similar to that of electric car, that is, the electric motorcycle is driven to run by charging battery providing energy for the motor, and the motorcycle frame as the support and framework core of the whole vehicle has a profound influence on the riding experience.
[0003] As patent (CN213921363U) discloses, wherein a kind of electric motorcycle frame is recorded, including car head riser, front triangular main beam is equipped on the car head riser circumferential outer wall near lower position, battery holder is equipped on the end of front triangular main beam, U-shaped bracket is also equipped at the rear end of battery holder, support rod is installed in the middle position of U-shaped bracket, support column is equipped on support rod near two ends, plug column is equipped in the bottom center position of support column, damping spring is sleeved on the outer wall of plug column, fixed column is equipped below plug column, fixed block is equipped in the end of fixed column;The electric motorcycle frame, the stability of the front triangular main beam is increased by the joint of the car head riser, and the battery holder is used to better install the corresponding battery, the use of U-shaped bracket provides installation position for wheel, the front end of U-shaped bracket is used to install the corresponding engine, the damping spring on support column cooperates with fixed column, to facilitate the damping effect during running after installing wheel.
[0004] When using the above technology, it is found that the prior art has the following technical problems: the battery holder is of fixed size, cannot adapt to different size batteries or multiple battery stacking requirements, when user replaces battery or needs to extend endurance, needs to customize holder or modify frame, leading to high cost and poor flexibility, in addition, fixed holder may shake due to battery size mismatch under bumpy road conditions, affecting safety. UTILITY MODEL CONTENTS
[0005] The utility model solves the technical problems that battery holder is of fixed size, cannot adapt to different size batteries or multiple battery stacking requirements, when user replaces battery or needs to extend endurance, needs to customize holder or modify frame, leading to high cost and poor flexibility, in addition, fixed holder may shake due to battery size mismatch under bumpy road conditions, affecting safety.
[0006] The utility model discloses a vehicle frame with shock -absorbing effect, including the front triangle support frame, install the battery box mounting frame on the front triangle support frame, install the fixed component in the battery box mounting frame, install the rear triangle support frame on the front triangle support frame, install two first hinged frames on the rear triangle support frame bottom, install lower support frame on the first hinged frame, two lower support frame bottom install in the same battery box mounting frame away from the one end of front triangle support frame, the hydraulic shock absorber is hinged in the first hinged frame, the bottom of hydraulic shock absorber is connected elastic hinge assembly, and the elastic hinge assembly is connected with two lower support frames.
[0007] The fixed component includes battery installation box, the battery installation box is installed inside the battery box mounting frame, both ends of the battery installation box are provided with gear boxes, the gear boxes are rotatably connected with rotating shafts, one end of the rotating shaft extending into the gear box is provided with a worm, the worm is meshed with a worm wheel, the worm wheel is rotatably connected to the inner wall of the gear box, and the rotating shaft is provided with a hand wheel.
[0008] The fixed component further includes two screw rods, the screw rods are threadedly connected with the worm wheels in the gear boxes, the screw rods are threadedly connected with the gear boxes, one end of the screw rod away from the gear box is rotatably connected with a clamping plate, and the clamping plate is provided with antiskid pads.
[0009] The battery installation box is clamped with a partition plate in the middle, and side reinforcing rods are detachably installed on the two sides of the battery installation frame.
[0010] The elastic hinge assembly includes two support plates, the support plates are connected with the lower support frames, the support plates are provided with sliding boxes, the sliding boxes are provided with sliding grooves, the sliding grooves are provided with sliding rods, the sliding rods are slidably connected with sliding blocks, the sliding rods are sleeved with shock-absorbing springs, and the shock-absorbing springs are connected to the sliding blocks and the sliding boxes.
[0011] The elastic hinge assembly further includes two second hinged frames, the second hinged frames are installed on the sliding blocks, and the second hinged frames are hinged to the bottoms of the hydraulic shock absorbers.
[0012] Compared with the prior art, the utility model has the advantages that: the worm and worm wheel mechanism is driven by rotating the hand wheel, the screw rod and the clamping plate are used to clamp and fix the battery, the antiskid pads (such as rubber or silicone material) are combined, the battery can be effectively prevented from loosening or shifting due to bumping during driving, the screw rod is rotated by the worm and worm wheel mechanism, the clamping plate can be flexibly adjusted in spacing, different width batteries can be adapted, different models of electric motorcycles can be applied, and various battery specifications can be compatible, the battery installation box can accommodate 2-4 batteries at the same time through the partition, and different endurance requirements can be met.
[0013] The shock-absorbing springs respond quickly to high-frequency, low-amplitude vibrations from the road surface (such as gravel roads and minor bumps), preventing high-frequency vibrations from being directly transmitted to the frame. The hydraulic shock absorbers absorb low-frequency, high-amplitude impacts (such as speed bumps and potholes) through oil damping, preventing the bike from shaking violently. This dual shock absorption allows the frame to handle various terrains such as city roads, mountain roads, and off-road terrain, improving riding comfort. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the structure of the present invention, showing the separation of the front triangular support frame and the battery box mounting frame.
[0017] Figure 3 This is a schematic diagram of the cross-section of the battery mounting box of this utility model.
[0018] Figure 4 This is a structural schematic diagram of the cross-section of the gearbox of this utility model.
[0019] Figure 5 This is a structural schematic diagram of the rear triangular support frame of this utility model.
[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the sliding box of this utility model.
[0021] In the diagram: 1. Front triangular support frame; 2. Battery box mounting frame; 4. Rear triangular support frame; 5. Lower support frame; 6. First hinge frame; 7. Hydraulic shock absorber; 8. Battery mounting box; 9. Gearbox; 10. Screw 1; 11. Worm gear; 12. Worm; 13. Rotating shaft; 14. Handwheel; 15. Clamping plate; 16. Anti-slip pad; 17. Side reinforcing bar; 18. Support plate; 19. Sliding box; 20. Sliding rod; 21. Shock-absorbing spring; 22. Sliding block; 23. Second hinge frame; 24. Partition plate; 25. Sliding groove. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0023] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0024] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0026] Example 1
[0027] like Figure 1 - Figure 5 As shown, a vehicle frame with shock absorption includes a front triangular support frame 1, a battery box mounting frame 2 mounted on the front triangular support frame 1, a fixing component installed inside the battery box mounting frame 2, a rear triangular support frame 4 mounted on the front triangular support frame 1, two first hinge frames 6 mounted on the bottom of the rear triangular support frame 4, and a lower support frame 5 mounted on the first hinge frames 6. The bottoms of the two lower support frames 5 are mounted on the same end of the battery box mounting frame 2 away from the front triangular support frame 1. The front triangular support frame 1, the lower support frame 5 and the battery mounting frame form a triangular structure, making the vehicle frame more stable.
[0028] The fixing assembly includes a battery mounting box 8, which is installed inside the battery mounting bracket 2. Gearboxes 9 are mounted at both ends of the battery mounting box 8. A rotating shaft 13 is rotatably connected inside the gearbox 9. A worm gear 12 is mounted at one end of the rotating shaft 13 that extends into the gearbox 9. A worm wheel 11 is meshed on the worm gear 12 and rotatably connected to the inner wall of the gearbox 9. The worm gear 12 and worm wheel 11 mechanism has a self-locking function, preventing the clamping plate 15 from loosening after fixing, thus ensuring the battery is secure. A handwheel 14 is mounted on the rotating shaft 13. The fixing assembly also includes two screws 10, which engage with the worm wheel inside the gearbox 9. 11. Threaded connection: Screw 10 is threadedly connected to gearbox 9. The end of screw 10 away from gearbox 9 is rotatably connected to clamping plate 15. Anti-slip pad 16 is installed on clamping plate 15. A partition 24 is snapped into the middle of battery mounting box 8. A guide groove is provided in the middle of battery mounting box 8. The position of partition 24 can be slidably adjusted to divide battery mounting box 8 into multiple independent compartments, compatible with batteries of different lengths. Side reinforcing rods 17 can be detachably installed on both sides of battery mounting box 8. Side reinforcing rods 17 enhance the side impact resistance and enhance the overall strength of battery mounting box 8 to prevent deformation due to excessive load.
[0029] During operation, the battery is placed in the battery mounting box 8, and then the handwheel 14 is rotated, causing the handwheel 14 to drive the rotating shaft 13 to rotate. The rotating shaft 13 drives the worm gear 12 connected to it to rotate. The rotation of the worm gear 12 drives the worm wheel 11, which is meshed with it, to rotate. The worm wheel 11 rotates in the gearbox 9, causing the screw 10 with the central thread connection to rotate. The screw 10 drives the clamping plate 15 to clamp the battery to one side. By adjusting the clamping plates 15 on both sides, the two clamping plates 15 clamp the battery on both sides, thereby fixing the battery. Thus, the device can be adapted to the installation of batteries of different sizes through the fixing components.
[0030] Example 2
[0031] like Figure 1 , Figure 5 and Figure 6 As shown, a hydraulic shock absorber 7 is hinged inside the first hinge frame 6. The bottom of the hydraulic shock absorber 7 is connected to an elastic hinge assembly. The elastic hinge assembly is connected to two lower support frames 5. The elastic hinge assembly includes two support plates 18. The support plates 18 are connected to the lower support frames 5. A sliding box 19 is installed on the support plate 18. A sliding groove 25 is opened in the sliding box 19. A sliding rod 20 is installed in the sliding groove 25. A sliding block 22 is slidably connected to the sliding rod 20. A shock-absorbing spring 21 is sleeved on the sliding rod 20. The two ends of the shock-absorbing spring 21 are respectively connected to the sliding block 22 and the sliding box 19. The elastic hinge assembly also includes two second hinge frames 23. The second hinge frames 23 are installed on the sliding block 22 and are hinged to the bottom of the hydraulic shock absorber 7.
[0032] When the vehicle is subjected to bumps during operation, the hydraulic shock absorber 7 moves downwards, causing the hydraulic shock absorber 7 to drive the sliding block 22 connected at the bottom to slide on the sliding rod 20 in the sliding groove 25 via the first hinge frame 6 and the second hinge frame 23 hinged at both ends. The sliding block 22 slides on the sliding rod 20, compressing the shock-absorbing spring 21 to form the first stage of shock absorption (the spring absorbs high-frequency vibrations). The spring deformation absorbs energy. The sliding block 22 drives the second hinge frame 23 on the sliding rod 20. The sliding block 22 slides to its limit in the sliding groove 25, causing the hydraulic shock absorber 7 to be compressed again to form the second stage of shock absorption (hydraulic damping absorbs low-frequency vibrations). The sliding block 22 is pushed back to its original position by the sliding rod 20. The dual shock absorption allows the frame to cope with various terrains such as urban roads, mountain roads, and off-road, improving riding comfort.
[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. The present utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A vehicle frame with shock absorption effect, comprising a front triangular support frame (1), characterized in that: A battery box mounting bracket (2) is installed on the front triangular support frame (1). A fixing component is installed inside the battery box mounting bracket (2). A rear triangular support frame (4) is installed on the front triangular support frame (1). Two first hinge brackets (6) are installed at the bottom of the rear triangular support frame (4). A lower support frame (5) is installed on the first hinge bracket (6). The bottoms of the two lower support brackets (5) are installed at the same end of the battery box mounting bracket (2) away from the front triangular support frame (1). A hydraulic shock absorber (7) is hinged inside the first hinge bracket (6). The bottom of the hydraulic shock absorber (7) is connected to an elastic hinge assembly. The elastic hinge assembly is connected to the two lower support brackets (5).
2. A vehicle frame with shock absorption effect according to claim 1, characterized in that: The fixing assembly includes a battery mounting box (8), which is installed inside the battery box mounting bracket (2). Gearboxes (9) are installed at both ends of the battery mounting box (8). A rotating shaft (13) is rotatably connected inside the gearbox (9). A worm gear (12) is installed at one end of the rotating shaft (13) that extends into the gearbox (9). A worm wheel (11) is meshed on the worm gear (12). The worm wheel (11) is rotatably connected to the inner wall of the gearbox (9). A handwheel (14) is installed on the rotating shaft (13).
3. A vehicle frame with shock absorption effect according to claim 2, characterized in that: The fixing assembly also includes two screws (10), which are threadedly connected to the worm gear (11) inside the gearbox (9). The screws (10) are threadedly connected to the gearbox (9), and a clamping plate (15) is rotatably connected to the end of the screws (10) away from the gearbox (9). An anti-slip pad (16) is installed on the clamping plate (15).
4. A vehicle frame with shock absorption effect according to claim 2, characterized in that: The battery mounting box (8) has a partition (24) snapped into the middle, and side reinforcing rods (17) can be detachably installed on both sides of the battery mounting frame.
5. A vehicle frame with shock absorption effect according to claim 1, characterized in that: The elastic hinge assembly includes two support plates (18), which are connected to the lower support frame (5). A sliding box (19) is installed on the support plate (18), and a sliding groove (25) is provided in the sliding box (19). A sliding rod (20) is installed in the sliding groove (25), and a sliding block (22) is slidably connected to the sliding rod (20). A shock-absorbing spring (21) is sleeved on the sliding rod (20), and the two ends of the shock-absorbing spring (21) are respectively connected to the sliding block (22) and the sliding box (19).
6. A vehicle frame with shock absorption effect according to claim 5, characterized in that: The elastic hinge assembly also includes two second hinge brackets (23), which are mounted on the sliding block (22) and are hinged to the bottom of the hydraulic shock absorber (7).
Citation Information
Patent Citations
Electric motorcycle frame
CN213921363U