Damping structure of electric bicycle

Abstract

The utility model discloses a damping structure of an electric bicycle, and relates to the field of bicycle damping. The seat comprises a connecting frame and a seat cushion, a first sliding rod is fixedly connected to the inner wall of the connecting frame, and two sliding blocks are connected to the outer wall of the first sliding rod in a sliding mode. Through the arrangement of the damping assembly, the external thread sleeve can be twisted, the position height of the internal thread block can be adjusted, under the joint cooperation of the connecting sleeve, the hinge block, damping oil and the piston, the second buffer spring and the first buffer spring on the damping assembly can also deform, and the cushion is further buffered; the reset spring is matched with the clamping ring, so that the clamping ring can be attached to the top face of the internal thread block, the multiple clamping teeth slide into the clamping groove, rotation of the internal thread block is limited, and the phenomenon that after the length of the damping assembly is adjusted, the internal thread block and the external thread sleeve are connected, and a thread slipping phenomenon is generated is prevented; and the stability of the damping assembly in the damping process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric bicycle shock absorption, in particular to a shock absorption structure of an electric bicycle. Background Art

[0002] An electric bicycle is a mechatronic personal transportation vehicle that uses a battery as an auxiliary energy source and is based on an ordinary bicycle. It is equipped with a motor, controller, battery, throttle, brake handle and other operating components and a display instrument system. It combines the flexibility of a traditional bicycle with the convenience of electric drive, becoming a popular choice for modern urban residents. The emergence of electric bicycles has greatly improved the efficiency of short-distance travel, allowing people to reach their destinations more easily during daily commuting, shopping or leisure activities.

[0003] However, the existing shock-absorbing structure of electric bicycles can adjust the stroke of the shock-absorbing component. After the stroke is adjusted, if the adjustment component is not limited, it is easy to cause faults such as slippage during long-term use, which in turn causes the shock-absorbing mechanism to be unstable. This instability not only affects the riding comfort, but may also pose a hidden danger to the safety of the vehicle. Utility Model Content

[0004] The purpose of the utility model is to provide an electric bicycle shock-absorbing structure, which is provided with a shock-absorbing component to limit the rotation of the internal thread block, thereby preventing the connection between the internal thread block and the external thread sleeve from slipping after the length of the shock-absorbing component is adjusted, thereby improving the stability of the shock-absorbing component during the shock-absorbing process, and solving the problem that the existing electric bicycle shock-absorbing structure can adjust the stroke of the shock-absorbing component, but after the stroke is adjusted, if the adjustment component is not limited, it is easy to cause malfunctions such as slipping in the case of long-term use.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a shock-absorbing structure for an electric bicycle, comprising a connecting frame and a seat cushion, wherein the inner wall of the connecting frame is fixedly connected to a slide rod 1, the outer wall of the slide rod 1 is slidably connected to two sliders, the outer wall of the slide rod 1 is sleeved with two shock-absorbing airbags, one end of the shock-absorbing airbag is fixedly connected to the slider, and the other end of the shock-absorbing airbag is fixedly connected to the inner wall of the connecting frame, the bottom surface of the seat cushion is fixedly connected to a fixing plate, and a shock-absorbing assembly is provided between the two sliders and the fixing plate;

[0007] The shock absorbing assembly includes a connecting sleeve and a hinge block, the connecting sleeve is rotatably connected to the bottom surface of the fixing plate, and the hinge block is rotatably connected to the top surface of the sliding block.

[0008] Furthermore, an opening is provided on the outer wall of the connecting sleeve, an externally threaded sleeve is fixedly connected to the inner wall of the connecting sleeve, a piston is slidably connected to the inner wall of the externally threaded sleeve, a slide rod 2 is fixedly connected to the bottom surface of the piston, the bottom end of the slide rod 2 is fixedly connected to the top surface of the hinge block, one end of a buffer spring 1 is wrapped around the outer wall of the slide rod 2 and is fixedly connected to the inner wall of the externally threaded sleeve, the other end of the buffer spring 1 is fixedly connected to the bottom surface of the piston, and the interior of the externally threaded sleeve is filled with shock-absorbing oil.

[0009] Furthermore, a second buffer spring is fixedly connected to the top surface of the hinge block, a connecting ring is fixedly connected to the top end of the second buffer spring, and the connecting ring is sleeved on the outside of the external threaded sleeve.

[0010] Furthermore, an inner thread block is provided on the sliding sleeve of the outer wall of the connecting ring, and the inner thread block is threadedly sleeved on the outer wall of the outer thread sleeve.

[0011] Furthermore, a plurality of return springs are fixedly connected to the inner wall of the connecting sleeve, and a plurality of retaining rings are fixedly connected to the bottom ends of the return springs. The retaining rings are sleeved on the outside of the externally threaded sleeve.

[0012] Furthermore, the top surface of the internal thread block is fixedly connected with a plurality of latching teeth, the bottom surface of the clamping ring is provided with a plurality of latching grooves, the latching teeth are adapted to the latching grooves, and the latching teeth are slidably connected to the inner walls of the latching grooves.

[0013] The utility model has the following beneficial effects:

[0014] 1. By providing two shock-absorbing airbags, when a rider sits on the top surface of the seat cushion, the two sliders will be squeezed on the outer wall of the slide bar 1 and move axially along the slide bar 1 with the cooperation of the shock-absorbing assembly. The two sliders move away from each other, squeezing the two shock-absorbing airbags so that the two shock-absorbing airbags are compressed, cushioning the movement of the sliders, and then cushioning the seat cushion, thereby improving the shock-absorbing effect of the entire device and avoiding discomfort caused by excessive vibration during riding of the electric bicycle.

[0015] The inner thread block can be rotated only on the outer wall of the connecting ring, and the inner thread block can be rotated with the outer thread sleeve to adjust the position height of the inner thread block, so that the shock absorber assembly can have a larger stroke to buffer the vibration. While the seat cushion is performing shock absorption and buffering, under the joint cooperation of the connecting sleeve, the hinge block, the shock absorber oil and the piston, the buffer spring 2 and the buffer spring 1 on the shock absorber assembly will also produce deformation, which further buffers the seat cushion, and the return spring and the clamping ring cooperate with each other, so that the clamping ring can fit on the top surface of the inner thread block, so that the multiple teeth slide into the inside of the clamping groove, limiting the rotation of the inner thread block, preventing the connection between the inner thread block and the outer thread sleeve from slipping after the length of the shock absorber assembly is adjusted, thereby improving the stability of the shock absorber assembly during shock absorption.

[0016] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a structural diagram of the fixed plate of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the shock absorbing assembly of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting sleeve of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the clamping ring of the present utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Connecting frame; 11. Cushion; 3. Shock-absorbing assembly; 21. Slide bar 1; 22. Slider; 23. Shock-absorbing airbag; 24. Fixing plate; 31. Connecting sleeve; 32. Hinge block; 33. Shock-absorbing oil; 301. Opening; 302. Externally threaded sleeve; 303. Piston; 304. Slide bar 2; 305. Buffer spring 1; 306. Buffer spring 2; 307. Connecting ring; 308. Internally threaded block; 309. Return spring; 311. Snap ring; 312. Snap teeth; 313. Snap groove. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 As shown, the utility model is a shock-absorbing structure of an electric bicycle, including a connecting frame 1 and a seat cushion 11, the inner wall of the connecting frame 1 is fixedly connected with a slide bar 21, the outer wall of the slide bar 21 is slidably connected to two sliders 22, the outer wall of the slide bar 21 is provided with two shock-absorbing airbags 23, one end of the shock-absorbing airbag 23 is fixedly connected to the slider 22, and the other end of the shock-absorbing airbag 23 is fixedly connected to the inner wall of the connecting frame 1, the bottom surface of the seat cushion 11 is fixedly connected with a fixing plate 24, and a shock-absorbing assembly 3 is provided between the two sliders 22 and the fixing plate 24. The shock-absorbing assembly 3 includes a connecting sleeve 31 and a hinge block 32, and the connecting sleeve 31 is fixed to the inner wall of the seat cushion 1. The bottom surface of the fixed plate 24 is rotatably connected, and the hinge block 32 is rotatably connected to the top surface of the slider 22. By providing two shock-absorbing airbags 23, after the rider sits on the top surface of the seat cushion 11, with the cooperation of the shock-absorbing component 3, the two sliders 22 will be squeezed to move axially along the outer wall of the slide bar 21 along the slide bar 21. The two sliders 22 move away from each other, squeezing the two shock-absorbing airbags 23, so that the two shock-absorbing airbags 23 are compressed, cushioning the movement of the sliders 22, and then cushioning the seat cushion 11, thereby improving the shock-absorbing effect of the overall device and avoiding discomfort caused by excessive vibration during riding of the electric bicycle.

[0027] The outer wall of the connecting sleeve 31 is provided with an opening 301, the inner wall of the connecting sleeve 31 is fixedly connected to an externally threaded sleeve 302, the inner wall of the externally threaded sleeve 302 is slidably connected to a piston 303, the bottom surface of the piston 303 is fixedly connected to a slide rod 2 304, the bottom end of the slide rod 2 304 is fixedly connected to the top surface of the hinge block 32, the outer wall of the slide rod 2 304 is wound with a buffer spring 1 305, one end of the buffer spring 1 305 is fixedly connected to the inner wall of the externally threaded sleeve 302, the other end of the buffer spring 1 305 is fixedly connected to the bottom surface of the piston 303, the interior of the externally threaded sleeve 302 is filled with shock-absorbing oil 33, the top surface of the hinge block 32 is fixed The second buffer spring 306 is fixedly connected, and the top of the second buffer spring 306 is fixedly connected to a connecting ring 307. The connecting ring 307 is sleeved on the outside of the external threaded sleeve 302. The outer wall of the connecting ring 307 is slidably sleeved with an internal thread block 308. The internal thread block 308 is threadedly sleeved on the outer wall of the external threaded sleeve 302. The inner wall of the connecting sleeve 31 is fixedly connected to a number of reset springs 309. The bottom ends of the several reset springs 309 are fixedly connected to a snap ring 311. The snap ring 311 is sleeved on the outside of the external threaded sleeve 302. The top surface of the internal thread block 308 is fixedly connected to a number of teeth 312. The bottom surface of the snap ring 311 is provided with a number of teeth. The latching groove 313 and the latching teeth 312 are adapted to the latching groove 313, and the latching teeth 312 are slidably connected to the inner wall of the latching groove 313. By providing the shock absorbing assembly 3, the connecting ring 307 and the internal threaded block 308 cooperate with each other, so that the internal threaded block 308 can only rotate on the outer wall of the connecting ring 307, and the internal threaded block 308 cooperates with the external threaded sleeve 302, and the external threaded sleeve 302 can be twisted so that it can move up and down on the outer wall of the external threaded sleeve 302, and the position height of the internal threaded block 308 can be adjusted, so that the shock absorbing assembly 3 can have a larger stroke to buffer the vibration. While the seat cushion 11 is being buffered, the connection With the joint cooperation of the sleeve 31, the hinge block 32, the shock-absorbing oil 33 and the piston 303, the buffer spring 2 306 and the buffer spring 1 305 on the shock-absorbing assembly 3 will also be deformed, further buffering the seat cushion 11, and the return spring 309 and the retaining ring 311 cooperate with each other, so that the retaining ring 311 can fit on the top surface of the internal thread block 308, so that the multiple teeth 312 slide into the inside of the retaining groove 313, limiting the rotation of the internal thread block 308, preventing the connection between the internal thread block 308 and the external threaded sleeve 302 from slipping after the length of the shock-absorbing assembly 3 is adjusted, thereby improving the stability of the shock-absorbing assembly 3 during the shock absorption process.

[0028] A specific application of this embodiment is that by providing two shock-absorbing airbags 23, when a rider sits on the top surface of the seat cushion 11, the two sliders 22 are squeezed and moved axially along the outer wall of the slide bar 1 21 under the cooperation of the shock-absorbing assembly 3. The two sliders 22 move away from each other, squeezing the two shock-absorbing airbags 23 so that the two shock-absorbing airbags 23 are compressed, cushioning the movement of the sliders 22, and then cushioning the seat cushion 11, thereby improving the shock-absorbing effect of the entire device and avoiding discomfort caused by excessive vibration during riding of the electric bicycle.

[0029] By providing the shock absorbing assembly 3, the connecting ring 307 and the internal thread block 308 cooperate with each other, so that the internal thread block 308 can only rotate on the outer wall of the connecting ring 307, and the internal thread block 308 cooperates with the external thread sleeve 302, and the external thread sleeve 302 can be twisted so that it can move up and down on the outer wall of the external thread sleeve 302, and the position height of the internal thread block 308 is adjusted, so that the shock absorbing assembly 3 can have a larger stroke to buffer the vibration. While the seat cushion 11 is being damped and buffered, the connecting sleeve 31, the hinge block 32, the shock absorbing oil 33 and the piston 3 03, the buffer spring 2 306 and the buffer spring 1 305 on the shock absorbing assembly 3 will also be deformed, further buffering the seat cushion 11, and the return spring 309 cooperates with the retaining ring 311 so that the retaining ring 311 can fit on the top surface of the internal thread block 308, so that the multiple teeth 312 slide into the groove 313, limiting the rotation of the internal thread block 308, preventing the connection between the internal thread block 308 and the external thread sleeve 302 from slipping after the length of the shock absorbing assembly 3 is adjusted, thereby improving the stability of the shock absorbing assembly 3 during the shock absorption process.

[0030] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0031] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A shock-absorbing structure for an electric bicycle, comprising a connecting frame (1) and a seat cushion (11), characterized in that: The inner wall of the connecting frame (1) is fixedly connected to a slide bar (21), the outer wall of the slide bar (21) is slidably connected to two sliders (22), the outer wall of the slide bar (21) is provided with two shock-absorbing airbags (23), one end of the shock-absorbing airbag (23) is fixedly connected to the slider (22), and the other end of the shock-absorbing airbag (23) is fixedly connected to the inner wall of the connecting frame (1), the bottom surface of the seat cushion (11) is fixedly connected to a fixing plate (24), and a shock-absorbing assembly (3) is provided between the two sliders (22) and the fixing plate (24); The shock absorbing assembly (3) comprises a connecting sleeve (31) and a hinge block (32), wherein the connecting sleeve (31) is rotatably connected to the bottom surface of the fixed plate (24), and the hinge block (32) is rotatably connected to the top surface of the slider (22).

2. The shock absorbing structure of an electric bicycle according to claim 1, characterized in that: The outer wall of the connecting sleeve (31) is provided with an opening (301), the inner wall of the connecting sleeve (31) is fixedly connected to an externally threaded sleeve (302), the inner wall of the externally threaded sleeve (302) is slidably connected to a piston (303), the bottom surface of the piston (303) is fixedly connected to a second sliding rod (304), the bottom end of the second sliding rod (304) is fixedly connected to the top surface of the hinge block (32), and the outer wall of the second sliding rod (304) is wound with a buffer spring (305).

3. The shock absorbing structure of an electric bicycle according to claim 2, characterized in that: One end of the buffer spring (305) is fixedly connected to the inner wall of the external threaded sleeve (302), and the other end of the buffer spring (305) is fixedly connected to the bottom surface of the piston (303). The interior of the external threaded sleeve (302) is filled with shock-absorbing oil (33).

4. The shock absorbing structure of an electric bicycle according to claim 3, characterized in that: The top surface of the hinge block (32) is fixedly connected to a second buffer spring (306), and the top end of the second buffer spring (306) is fixedly connected to a connecting ring (307), and the connecting ring (307) is sleeved on the outside of the external threaded sleeve (302).

5. The shock absorbing structure of an electric bicycle according to claim 4, characterized in that: An inner thread block (308) is slidably sleeved on the outer wall of the connecting ring (307), and the inner thread block (308) is threadedly sleeved on the outer wall of the outer thread sleeve (302).

6. The shock absorbing structure of an electric bicycle according to claim 5, characterized in that: The inner wall of the connecting sleeve (31) is fixedly connected with a plurality of return springs (309), and the bottom ends of the plurality of return springs (309) are fixedly connected with a snap ring (311), and the snap ring (311) is sleeved on the outside of the external threaded sleeve (302).

7. The shock absorbing structure of an electric bicycle according to claim 6, characterized in that: The top surface of the internal thread block (308) is fixedly connected with a plurality of latch teeth (312), and the bottom surface of the snap ring (311) is provided with a plurality of latch grooves (313). The latch teeth (312) are adapted to the latch grooves (313), and the latch teeth (312) are slidably connected to the inner wall of the latch groove (313).

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