A dual shock absorption stability control component for electric bicycles

Abstract

This utility model proposes a dual shock absorption and stabilization control component for electric bicycles, including an upper connector and a main sleeve. The bottom end of the upper connector is fixedly connected to the main sleeve, and the bottom of the main sleeve is fixedly connected to a sleeve. An adjusting plate is threadedly connected to the outer surface of the main sleeve, and a spring is fixedly connected to the bottom of the adjusting plate. The advantages of this utility model are: improved safety through a safety structure design. A buffer is fixedly connected to the top of the safety device. During shock absorption, the piston moves upward inside the sleeve, compressing the spring. Simultaneously, the nitrogen gas inside the sleeve, channel, and external air cylinder is compressed, causing the safety device and buffer to move upward. The buffer abuts against the bottom end of the sleeve. The wave-shaped structure on the side of the buffer generates multi-directional deformation upon impact, dispersing over 90% of the axial stress, effectively damping and buffering the impact force, effectively preventing excessive nitrogen compression, and preventing the sleeve and external air cylinder from bursting, making it more secure and safer.

Description

Technical Field

[0001] This utility model relates to the field of electric bicycle technology, and in particular to a dual shock absorption and stability control component for electric bicycles. Background Technology

[0002] An electric bicycle is a mechatronic personal transportation tool that uses a battery as auxiliary power source and incorporates a motor, controller, battery, throttle, brake levers, and display system into a regular bicycle. The shock absorption device on an electric bicycle is a mechanism that helps reduce shock during riding, improving user comfort.

[0003] Existing shock absorption devices for electric bicycles have the following defects:

[0004] Single-medium shock absorption limitations: Using a single air cylinder or spring structure cannot simultaneously absorb high-frequency vibrations and buffer large-scale impacts.

[0005] Risk of cylinder bursting: Nitrogen shock absorption systems are prone to sleeve or cylinder rupture under extreme pressure (the bursting rate of traditional structures reaches 12% under 1.5MPa pressure). Utility Model Content

[0006] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0007] Therefore, one objective of this utility model is to propose a dual shock absorption and stability control component for electric bicycles to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0008] To achieve the above objectives, one embodiment of the present invention provides a dual shock absorption and stability control component for an electric bicycle, including an upper connector and a main sleeve, wherein the bottom end of the upper connector is fixedly connected to the main sleeve, and the bottom of the main sleeve is fixedly connected to a sleeve.

[0009] An adjusting plate is threadedly connected to the outer surface of the main sleeve, and a spring is fixedly connected to the bottom of the adjusting plate;

[0010] A piston is movably connected inside the sleeve, and a piston rod is fixedly connected to the bottom of the piston. The piston rod is movably connected to the bottom of the sleeve, and a lower connector is fixedly connected to the bottom end of the piston rod.

[0011] A chassis is movably connected to a fixed point on the outer surface of the piston rod, and the top of the chassis is fixedly connected to the bottom end of the spring.

[0012] The top of the main sleeve is fixedly connected to a channel, and the bottom of the channel is fixedly connected to an external air cylinder.

[0013] The sleeve, channel, and external air cylinder are filled with compressible nitrogen. A safety device is fixedly connected to the outer surface of the piston rod, and a buffer is fixedly connected to the top of the safety device. The side of the buffer is wavy.

[0014] Preferably, the threaded surface of the main sleeve is provided with equally spaced scale marks, and the spacing between adjacent scale marks corresponds to a change in spring preload of 5-8N.

[0015] The above technical solution is adopted: the outer surface of the main sleeve is connected to the adjusting plate by a thread, the bottom of the adjusting plate is fixed with a carbon fiber spring, and the spring preload is precisely controlled by the scale markings;

[0016] Built-in nitrogen layer: The sleeve, channel, and external gas cylinder form a closed nitrogen chamber, and the nitrogen pressure is buffered through the channel.

[0017] Preferably, in any of the above embodiments, the spring is made of carbon fiber reinforced nylon composite material, and its outer layer is covered with a silicone sound insulation layer, and the helix angle of the spring is 15°-18°.

[0018] Preferably, in any of the above embodiments, the piston is riveted to the piston rod, and the lower connector and the upper connector have a circular opening.

[0019] The above technical solution involves designing a safety structure with a buffer component fixedly connected to the top of the safety device. During shock absorption, the piston moves upward inside the sleeve, compressing the spring. Simultaneously, the nitrogen gas inside the sleeve, channel, and external air cylinder is compressed, causing the safety device and buffer component to move upward. The buffer component abuts against the bottom end of the sleeve, and the wave-shaped structure on the side of the buffer component generates multi-directional deformation during impact, dispersing more than 30% of the axial stress. This effectively dampens and buffers the impact force, effectively preventing excessive compression of nitrogen gas and preventing the sleeve and external air cylinder from bursting, making it more secure and safer.

[0020] Normal vibration reduction:

[0021] The vibration is transmitted to the piston rod through the lower connector, which pushes the piston to compress the nitrogen gas in the sleeve. 70% of the energy is absorbed by the gas compression.

[0022] The remaining energy is transferred to the spring through the chassis, and the spring deformation is precisely controlled by the scale markings on the adjusting plate.

[0023] Overload protection:

[0024] When the impact force causes the nitrogen pressure to be ≥1.2MPa, the piston rod movement triggers the mechanical locking of the safety device, and at the same time, the buffer undergoes plastic deformation, absorbing 90% of the impact energy before the cylinder explodes.

[0025] Preferably, in any of the above schemes, the angle between the channel and the main sleeve is an acute angle, and the external air cylinder is parallel to the sleeve.

[0026] Preferably, in any of the above embodiments, the safety device is connected to the outer surface of the piston rod by screws, the safety device is located below the sleeve, and the buffer is made of rubber.

[0027] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0028] This electric bicycle dual-shock absorption and stability control assembly, through the coordinated arrangement of a sleeve, piston, piston rod, lower connector, chassis, channel, external air pump, safety device, and buffer, employs a dual-shock absorption method using an external spring, internal nitrogen gas, and an external air pump and sleeve, resulting in high shock absorption efficiency.

[0029] To enhance safety, a safety structure is designed with a buffer component fixedly connected to the top of the safety device. During shock absorption, the piston moves upward inside the sleeve, compressing the spring. Simultaneously, the nitrogen inside the sleeve, channel, and external air cylinder is compressed, causing the safety device and buffer component to move upward. The buffer component abuts against the bottom end of the sleeve, and the wave-shaped structure on the side of the buffer component generates multi-directional deformation during impact, dispersing more than 30% of the axial stress. This effectively dampens and buffers the impact force, effectively preventing excessive nitrogen compression and cylinder explosion of the sleeve and external air cylinder, making it safer and more secure.

[0030] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0031] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0032] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0033] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0034] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0035] Figure 4 This is a schematic diagram of the piston part of this utility model.

[0036] In the diagram: 1-Upper connector, 2-Main sleeve, 3-Sleeve, 4-Adjusting plate, 5-Spring, 6-Piston, 7-Piston rod, 8-Lower connector, 9-Chassis, 10-Channel, 11-External air pump, 12-Safety device, 13-Buffer component. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] like Figure 1-4 As shown, the dual shock absorption and stability control assembly for this electric bicycle includes an upper connector 1 and a main sleeve 2. The bottom end of the upper connector 1 is fixedly connected to the main sleeve 2, and the bottom of the main sleeve 2 is fixedly connected to a sleeve 3.

[0040] The outer surface of the main sleeve 2 is threaded with an adjusting plate 4, and the bottom of the adjusting plate 4 is fixedly connected with a spring 5;

[0041] A piston 6 is movably connected inside the sleeve 3. A piston rod 7 is fixedly connected to the bottom of the piston 6. The piston rod 7 is movably connected to the bottom of the sleeve 3. A lower connector 8 is fixedly connected to the bottom end of the piston rod 7.

[0042] A chassis 9 is movably connected to a fixed part on the outer surface of the piston rod 7, and the top of the chassis 9 is fixedly connected to the bottom end of the spring 5.

[0043] The top of the main sleeve 2 is fixedly connected to a channel 10, and the bottom of the channel 10 is fixedly connected to an external air pump 11.

[0044] Sleeve 3, channel 10, and external air cylinder 11 are filled with compressible nitrogen. A safety device 12 is fixedly connected to the outer surface of piston rod 7. A buffer 13 is fixedly connected to the top of safety device 12. The side of buffer 13 is wavy.

[0045] Example 1: The threaded surface of the main sleeve 2 is provided with equally spaced scale marks, and the spacing between adjacent scale marks corresponds to a change of 5-8N in the preload of the spring 5. The outer surface of the main sleeve 2 is connected to the adjusting plate 4 by threads, and the bottom of the adjusting plate 4 is fixed with a carbon fiber spring 5. The preload of the spring 5 is precisely controlled by the scale marks.

[0046] Built-in nitrogen layer: Sleeve 3, channel 10, and external gas cylinder 11 form a closed nitrogen chamber, and the nitrogen pressure is buffered through channel 10.

[0047] Example 2: Spring 5 is made of carbon fiber reinforced nylon composite material, with an outer layer covered by a silicone sound insulation layer. The helix angle of spring 5 is 15°-18°. Piston 6 is riveted to piston rod 7. Lower connector 8 and upper connector 1 have a circular opening. The angle between channel 10 and main sleeve 2 is acute. External air pump 11 is parallel to sleeve 3. Safety device 12 is connected to the outer surface of piston rod 7 by screws. Safety device 12 is located below sleeve 3. Buffer 13 is made of rubber.

[0048] The working principle of this utility model is as follows:

[0049] Normal vibration reduction:

[0050] Vibration is transmitted to piston rod 7 via lower connector 8, which pushes piston 6 to compress nitrogen gas in sleeve 3. 70% of the energy is absorbed by gas compression.

[0051] The remaining energy is transferred to the spring 5 through the chassis 9, and the deformation of the spring 5 is precisely controlled by the scale markings on the adjusting plate 4.

[0052] Overload protection:

[0053] When the impact force causes the nitrogen pressure to be ≥1.2MPa, the piston rod 7 moves to trigger the mechanical locking of the safety device 12, and at the same time the buffer 13 undergoes plastic deformation to absorb 90% of the impact energy before the cylinder explodes.

[0054] Compared with the prior art, the present invention has the following advantages:

[0055] This electric bicycle dual-shock absorption and stability control assembly, through the coordinated arrangement of sleeve 3, piston 6, piston rod 7, lower connector 8, chassis 9, channel 10, external air pump 11, safety device 12, and buffer 13, adopts a dual-shock absorption form using an external spring 5, internal nitrogen gas, external air pump 11, and sleeve 3, resulting in high shock absorption efficiency.

[0056] To enhance safety, a safety device 12 structure is designed, with a buffer 13 fixedly connected to the top of the safety device 12. During vibration reduction, the piston 6 moves upward inside the sleeve 3, compressing the spring 5. Simultaneously, the nitrogen inside the sleeve 3, channel 10, and external air cylinder 11 is compressed, causing the safety device 12 and buffer 13 to move upward. The buffer 13 abuts against the bottom end of the sleeve 3. The wave-shaped structure on the side of the buffer 13 generates multi-directional deformation during impact, dispersing more than 30% of the axial stress, effectively damping and buffering the impact force, effectively preventing excessive compression of nitrogen, and preventing the sleeve 3 and external air cylinder 11 from bursting, making it safer and more secure.

Claims

1. A dual shock absorption and stability control component for electric bicycles, characterized in that, It includes an upper connector (1) and a main sleeve (2). The bottom end of the upper connector (1) is fixedly connected to the main sleeve (2), and the bottom of the main sleeve (2) is fixedly connected to a sleeve (3). The outer surface of the main sleeve (2) is threaded with an adjusting plate (4), and the bottom of the adjusting plate (4) is fixedly connected with a spring (5); A piston (6) is movably connected inside the sleeve (3), and a piston rod (7) is fixedly connected to the bottom of the piston (6). The piston rod (7) is movably connected to the bottom of the sleeve (3), and a lower connector (8) is fixedly connected to the bottom end of the piston rod (7). The piston rod (7) is movably connected to a base plate (9) at a fixed point on its outer surface, and the top of the base plate (9) is fixedly connected to the bottom end of the spring (5). The top end of the main sleeve (2) is fixedly connected to a channel (10), and the bottom end of the channel (10) is fixedly connected to an external air cylinder (11). The sleeve (3), channel (10), and external air cylinder (11) are filled with compressible nitrogen. A safety device (12) is fixedly connected to the outer surface of the piston rod (7). A buffer (13) is fixedly connected to the top of the safety device (12). The side of the buffer (13) is wavy.

2. The dual shock absorption and stability control component for electric bicycles as described in claim 1, characterized in that: The threaded surface of the main sleeve (2) is provided with equally spaced scale marks, and the spacing between adjacent scale marks corresponds to the change in the preload force of the spring (5) by 5-8N.

3. The dual shock absorption and stability control component for electric bicycles as described in claim 2, characterized in that: The spring (5) is made of carbon fiber reinforced nylon composite material and is covered with a silicone sound insulation layer. The helix angle of the spring (5) is 15°-18°.

4. The dual shock absorption and stability control component for an electric bicycle as described in claim 3, characterized in that: The piston (6) is riveted to the piston rod (7), and the lower connector (8) and the upper connector (1) have a circular opening.

5. The dual shock absorption and stability control component for an electric bicycle as described in claim 4, characterized in that: The angle between the channel (10) and the main sleeve (2) is acute, and the external air cylinder (11) is parallel to the sleeve (3).

6. The dual shock absorption and stability control component for an electric bicycle as described in claim 5, characterized in that: The safety device (12) is connected to the outer surface of the piston rod (7) by screws. The safety device (12) is located below the sleeve (3). The buffer (13) is made of rubber.

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