Electric vehicle shock absorber

Abstract

The invention discloses an electric vehicle shock absorber, which relates to the technical field of electric vehicle shock absorption equipment, including an oil cylinder, a piston rod and a piston body, wherein the piston body is provided with damping holes, and plates are respectively located on both sides of the piston body, and the two plate bodies are connected by a connecting shaft body; a plurality of baffles are fixedly installed on each plate body; a sliding shaft body is fixedly installed on one of the plate bodies, and a regulating sleeve rotatably connected to the inner wall thereof is installed at the end of the oil cylinder, the sliding shaft body is located inside the regulating sleeve and slidably connected to the inner wall thereof, and the electric vehicle shock absorber has a plurality of damping holes arranged on the piston body, and the oil permeable area of ​​the damping holes is changed so that the flow amount of oil passing through the damping holes will change, thereby affecting the magnitude of the damping force, and the flow of oil and the magnitude of the damping force can be more finely controlled by the plurality of damping holes, which is helpful to provide a more stable and comfortable shock absorption effect under different road conditions and driving speeds.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicle shock absorbing equipment, in particular to an electric vehicle shock absorber. Background Art

[0002] With the continuous advancement and popularization of electric vehicle technology, the importance of electric vehicle shock absorbers as a key component to ensure riding comfort and safety has become increasingly prominent. Electric vehicle shock absorbers can be divided into many types according to different structures, materials and uses. According to the structure, there are mainly spring shock absorbers, oil shock absorbers, gas shock absorbers and electromagnetic shock absorbers. Among them, spring shock absorbers are the most basic type, which absorbs and dissipates vibration energy through the elastic deformation of the spring; oil shock absorbers use the damping effect of oil to achieve shock absorption; gas shock absorbers use the compressibility of gas to buffer vibration; and electromagnetic shock absorbers use electromagnetic principles to achieve intelligent control; the main function of electric vehicle shock absorbers is to improve riding comfort and safety. By effectively reducing the vibration caused by uneven road surface or other reasons during vehicle driving, the shock absorber can protect vehicle components from damage, extend service life, and reduce rider fatigue and discomfort. In addition, good shock absorption performance also helps to improve the vehicle's handling stability and safety.

[0003] Among them, hydraulic shock absorbers are most commonly used on electric vehicles. Hydraulic shock absorbers are mainly composed of piston rod, working cylinder, piston, damping hole, oil storage cylinder, pressure cylinder, oil seal and oil. The working cylinder is filled with oil, and the piston forms a moving pair with the inner wall of the working cylinder through the piston rod. This structure provides the basis for the normal operation of the shock absorber. When the vehicle is driving on an uneven road, the wheels will jump up and down, driving the piston to reciprocate in the working cylinder. The movement direction of the piston determines the working stage of the shock absorber, including compression stroke and extension stroke. During the movement of the piston, the oil inside the cylinder will be converted through the damping hole, and then given under the action of the oil and spring. Piston damping effect; in the actual working process, the rider often adjusts the preload force of the spring to change the hardness or softness of the shock absorber. However, in the actual use process, the inventor found that although the spring can effectively reduce the vibration of the vehicle, when the electric vehicle passes through the speed bump quickly, the spring cannot absorb the impact energy well due to its own movement behavior, and during the spring resetting process, the rider is prone to fall off the seat cushion, which affects the riding comfort of the rider on the one hand, and on the other hand, if the shock absorber is adjusted too soft, insufficient support will occur during the speed bump process. For this reason, we propose an electric vehicle shock absorber. Summary of the invention

[0004] The object of the present invention is to provide an electric vehicle shock absorber to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric vehicle shock absorber, comprising an oil cylinder filled with hydraulic oil, a piston rod and a piston body fixedly mounted on one end of the piston rod and located inside the oil cylinder, an aluminum bracket fixedly mounted on the other end of the piston rod and the end of the oil cylinder, wherein an adjuster threadedly connected to the adjuster is mounted on the outer wall of the oil cylinder, a spring body is connected between the adjuster and the aluminum bracket at the end of the piston rod, and

[0006] A damping hole is arranged on the piston body, and a plurality of damping holes are distributed in an annular manner at equal angles on the piston body;

[0007] Two plates are respectively located on both sides of the piston body, and the two plates are connected by a connecting shaft, and the connecting shaft is rotatably connected to the inner wall of the piston body;

[0008] A plurality of baffles are fixedly mounted on each plate body, and the baffles correspond to the damping holes one by one;

[0009] A sliding shaft is fixedly installed on one of the plate bodies, and a regulating sleeve rotatably connected to its inner wall is installed at the end of the cylinder. The sliding shaft is located inside the regulating sleeve and is slidably connected to its inner wall. Rotating the regulating sleeve causes the sliding shaft to drive the two plate bodies and multiple baffles thereon to rotate synchronously to change the oil flow area of ​​the damping hole.

[0010] Preferably, a connecting sleeve is fixedly mounted on each baffle, and a rotating panel is provided at the bottom of the baffle, and the rotating panels are connected by a fixed shaft body, the fixed shaft body is located in the damping hole, and both ends of the fixed shaft body are respectively limited and rotated in the connecting sleeve.

[0011] Preferably, the rotating panel includes a groove portion and a protrusion portion, and the groove portion is parallel to one side of the baffle.

[0012] Preferably, a force-bearing shaft body slidably connected to the fixed shaft body is installed inside, and one end of the force-bearing shaft body passes through the inner wall of the top of the connecting sleeve and extends to the outside, and a conical force-bearing plate frame is fixedly installed on one end of the force-bearing shaft body located outside the connecting sleeve.

[0013] Preferably, an annular plate frame is fixedly installed on the outer wall of the force-bearing shaft, and a limiting shaft body is symmetrically installed on the annular plate frame, and an adjustment groove body is provided on the inner wall of each connecting sleeve, and the limiting shaft body slides within the adjustment groove body, and a sensing element is installed in the adjustment groove body, and the sensing element is located on the motion trajectory of the limiting shaft body.

[0014] Preferably, a constant force spring is connected between the annular plate frame and the fixed shaft body, the force-bearing shaft bodies are connected by an extension shaft body, and the extension shaft body slides within a limited position within the fixed shaft body, wherein a magnetic block is also fixedly mounted on the extension shaft body, and an electromagnetic component is fixedly mounted inside the fixed shaft body, the electromagnetic component is located directly below the magnetic block, and when the electromagnetic component is energized, an attractive force is generated on the magnetic block, wherein the electromagnetic component is electrically connected to the induction element, and the outer wall of the extension shaft body does not contact the inner wall of the electromagnetic component.

[0015] Preferably, each adjustment slot body comprises a sliding area, an upper spiral area and a lower spiral area respectively connected to the upper end and the lower end of the sliding area.

[0016] Preferably, the protrusion is composed of a plurality of arc-shaped portions with different outer diameters.

[0017] Preferably, the plate body and the baffle are arranged obliquely.

[0018] Preferably, a rotating part rotatably connected to the inner wall of the cylinder is installed inside the aluminum bracket at the end of the cylinder, the end of the regulating sleeve passes through the inner wall of the top of the cylinder and is fixedly connected to the rotating part, a return spring is fixedly installed on the inner wall of the regulating sleeve, and the end of the sliding shaft is in contact with the return spring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention provides a plurality of damping holes on the piston body. By changing the oil permeable area of ​​the damping holes, the flow rate of the oil passing through the damping holes is changed, thereby affecting the magnitude of the damping force. The plurality of damping holes can more finely control the flow of the oil and the magnitude of the damping force, which helps to provide a more stable and comfortable shock absorption effect under different road conditions and driving speeds.

[0021] The present invention utilizes the sliding connection relationship between the sliding shaft body and the regulating sleeve, so that the rotating member drives the sliding shaft body to rotate through the regulating sleeve, so that the baffle plate is adjusted in angle under the action of the plate body, so as to achieve the purpose of changing the oil permeable area of ​​the damping hole;

[0022] The present invention utilizes the positional relationship between the groove and the protrusion of the rotating panel so that when the piston body moves at a faster speed, the protrusion can control the oil permeability area of ​​the damping hole, so as to suppress the movement of the piston body and reduce the movement path of the spring body. By reducing the movement path of the spring body, the shock absorption frequency is increased, thereby effectively improving the shock absorption effect of the shock absorber, and avoiding the situation where the vehicle support is unstable during the resetting process due to the excessive movement path of the spring body, thereby improving the comfort during riding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of an electric vehicle of the present invention passing through a speed bump;

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 3 It is a schematic diagram of the internal structure of the oil cylinder of the present invention;

[0026] Figure 4 This is a schematic diagram of the piston body structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the separation of the piston body and the plate body structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the structure of the control sleeve and the sliding shaft body of the present invention;

[0029] Figure 7 This is a schematic diagram of the internal structure of the connecting sleeve of the present invention;

[0030] Figure 8 It is a schematic diagram of the connecting sleeve, the fixed shaft body and the force-bearing shaft body of the present invention;

[0031] Fig. 9 It is a schematic diagram of the separation structure of the connecting sleeve, the fixed shaft body and the force-bearing shaft body of the present invention;

[0032] Fig.10 This is a schematic diagram of the structure of the regulating tank of the present invention;

[0033] Fig.11 It is a schematic diagram of the structure of the raised portion of the present invention;

[0034] Fig.12 It is a schematic diagram of the rotating panel and the damping hole of the present invention.

[0035] In the figure: 1-cylinder; 11-regulating sleeve; 12-reset spring; 2-piston rod; 3-piston body; 31-damping hole; 4-aluminum bracket; 41-rotating part; 5-regulator; 6-spring body; 7-plate body; 71-connecting shaft body; 72-baffle; 73-sliding shaft body; 74-connecting sleeve; 75-rotating panel; 751-groove part; 752-protrusion part; 76-fixed shaft body; 761-electromagnetic component; 77-force-bearing shaft body; 771-conical force-bearing plate frame; 772-annular plate frame; 773-limiting shaft body; 774-extension shaft body; 775-magnetic block; 78-adjusting slot body; 781-sliding area; 782-upper spiral area; 783-lower spiral area; 79-sensing element; 70-constant force spring. DETAILED DESCRIPTION

[0036] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-Figure 12 The present invention provides a technical solution: an electric vehicle shock absorber, combined with Figure 1 As shown, when an electric vehicle passes through a speed bump quickly, the shock absorber will be in a compressed state due to the effect of the speed bump. If the rider adjusts the preload of the spring to make the shock absorber harder, the rider's comfort will be affected when passing through the speed bump. If the shock absorber is adjusted to be softer, the compression and release path of the spring will increase when passing through the speed bump, and the rider's buttocks will easily leave the seat cushion when passing through the speed bump, affecting the support of the vehicle body. The present invention is aimed at improving the technical problems in the background technology, such as Figure 2 and Figure 3 As shown, it includes a cylinder 1 filled with hydraulic oil, a piston rod 2 and a piston body 3 fixedly installed at one end of the piston rod 2 and located inside the cylinder 1, and an aluminum bracket 4 is fixedly installed at the other end of the piston rod 2 and the end of the cylinder 1, wherein an adjuster 5 threadedly connected to it is installed on the outer wall of the cylinder 1, and a spring body 6 is connected between the adjuster 5 and the aluminum bracket 4 at the end of the piston rod 2. The above components are all prior arts. When the preload force of the spring body 6 is adjusted, the adjuster 5 is rotated forward or reversely to make the adjuster 5 rise or fall, thereby changing the length of the spring body 6; wherein a plurality of damping holes 31 are arranged on the piston body 3, and the plurality of damping holes 31 are provided on the piston body 3. The damping holes 31 are distributed in an annular manner at equal angles on the piston body 3. Since the oil cylinder 1 is filled with hydraulic oil, when the piston rises or falls, the hydraulic oil therein flows through the damping holes 31, so that the flow of oil and the magnitude of the damping force can be more finely controlled, which helps to provide a more stable and comfortable shock absorption effect under different road conditions and driving speeds. Two plates 7 are installed on both sides of the piston body 3, and the two plates 7 are connected by a connecting shaft 71. The connecting shaft 71 is rotatably connected to the inner wall of the piston body 3. A plurality of baffles 72 are fixedly installed on each plate 7, and the baffles 72 correspond to the damping holes 31 one by one. Figure 4-5 As shown, there is a certain distance between the baffles 72, and the damping hole 31 is located between each adjacent baffle 72. When the baffle 72 rotates, the oil permeable area of ​​the damping hole 31 will change, so that the flow rate of the oil passing through the damping hole 31 will change, thereby affecting the magnitude of the damping force. The plate body 7 and the baffle 72 are arranged at an angle so that the hydraulic oil can be evenly diverted to the damping hole 31. Figure 3-5As shown, a sliding shaft 73 is fixedly installed on one of the plate bodies 7, and the plate body 7 on which the sliding shaft 73 is installed is relatively close to one end of the oil cylinder 1 on which the aluminum bracket 4 is installed, and a regulating sleeve 11 rotatably connected to the inner wall thereof is installed at the end of the oil cylinder 1, the sliding shaft 73 is located inside the regulating sleeve 11 and is slidably connected to the inner wall thereof, a rotating member 41 rotatably connected to the inner wall thereof is installed inside the aluminum bracket 4 at the end of the oil cylinder 1, the end of the regulating sleeve 11 passes through the inner wall at the top of the oil cylinder 1 and is fixedly connected to the rotating member 41, a return spring 12 is fixedly installed on the inner wall of the regulating sleeve 11, the end of the sliding shaft 73 contacts the return spring 12, and the rotating regulating sleeve 11 causes the sliding shaft 73 to drive the two plate bodies 7 and the multiple baffles 72 thereon to rotate synchronously, so as to change the oil passing area of ​​the damping hole 31;

[0038] Combination Figure 3-Figure 6 As shown, in Figure 3 When the piston rod 2 drives the piston body 3 to move downward, the sliding shaft 73 will squeeze the return spring 12 on the inner wall of the regulating sleeve 11, and the hydraulic oil in the oil cylinder 1 will pass through the multiple damping holes 31. During this movement, the hydraulic oil will generate resistance to inhibit the movement of the piston body 3 and the mechanical parts thereon; when it is necessary to change the position of the baffle plate 72, that is, to change the oil permeability area of ​​the damping hole 31, the rider only needs to rotate the rotating member 41, and the rotating member 41 will drive the regulating sleeve 11 to rotate. Due to the sliding connection between the regulating sleeve 11 and the sliding shaft 73, the regulating sleeve 11 drives the sliding shaft 73 to rotate, so that the sliding shaft 73 drives the plate body 7 to move. The two plates 7 are connected by a connecting shaft 71, and then the multiple baffles 72 on the two plate bodies 7 are rotated synchronously, and the oil permeation area of ​​the damping hole 31 is changed according to the rotation direction; then when the rider wants to adjust the shock absorbing effect of the shock absorber to be softer, the oil permeation area of ​​the damping hole 31 can be increased to facilitate the hydraulic oil to pass through the damping hole 31. At the same time, the rider can also change the preload force of the spring body 6 through the adjuster 5. If the rider wants to adjust the shock absorbing effect of the shock absorber to be harder, the oil permeation area of ​​the damping hole 31 can be reduced, and the preload force of the spring body 6 can also be changed through the adjuster 5. Through this design, the damping effect of the shock absorber is adjustable.

[0039] A connecting sleeve 74 is fixedly installed on each baffle 72, and a rotating panel 75 is arranged at the bottom of the baffle 72, and the rotating panels 75 are connected by a fixed shaft 76, the fixed shaft 76 is located in the damping hole 31, and the two ends of the fixed shaft 76 are respectively limited and rotated in the connecting sleeve 74, wherein a force-bearing shaft 77 slidably connected to it is installed inside the fixed shaft 76, and one end of the force-bearing shaft 77 passes through the inner wall of the top of the connecting sleeve 74 and extends to the outside, and the end of the force-bearing shaft 77 located outside the connecting sleeve 74 is fixedly installed with a conical force-bearing plate frame 771, combined with Figure 3As shown, at this time, the piston moves downward, and the hydraulic oil will give a force to the conical force-bearing plate frame 771, so that the conical force-bearing plate frame 771 moves toward the connecting sleeve 74, thereby driving the force-bearing shaft 77 to rotate. An annular plate frame 772 is fixedly installed on the outer wall of the force-bearing shaft 77, and a limit shaft 773 is symmetrically installed on the annular plate frame 772. The annular plate frame 772 and the limit shaft 773 are both located inside the connecting sleeve 74, and an adjusting groove 78 is provided on the inner wall of each connecting sleeve 74, and the limit shaft 773 slides in a limited position in the adjusting groove 78. A sensing element 79 is installed in the adjusting groove 78, and the sensing element 79 is located on the movement trajectory of the limit shaft 773.

[0040] As a further limitation of the present invention, the adjusting groove body 78 includes a sliding area 781, an upper spiral area 782 and a lower spiral area 783 respectively connected to the upper end and the lower end of the sliding area 781. Figure 3 , Figure 7-10 In the above description, it is mentioned that "a plate body 7 is installed on both sides of the piston body 3", and the inner wall of the connecting sleeve 74 on the baffle 72 corresponding to each plate body 7 is as follows Fig.10 As shown, for the convenience of description, one of the connecting sleeves 74 is an upper connecting sleeve 74, and the other is a lower connecting sleeve 74, the upper connecting sleeve 74 is located above the lower connecting sleeve 74, in this figure, the position of the sensing element 79 in the adjusting groove 78 is different, the sensing element 79 in the upper connecting sleeve 74 is located in the lower spiral area 783 and close to the lower end of the sliding area 781, and the sensing element 79 in the lower connecting sleeve 74 is located in the upper spiral area 782 and close to the upper end of the sliding area 781;

[0041] A constant force spring 70 is connected between the annular plate frame 772 and the fixed shaft body 76, and the force-bearing shaft bodies 77 are connected through an extension shaft body 774. The extension shaft body 774 slides within the fixed shaft body 76, wherein a magnetic block 775 is fixedly mounted on the extension shaft body 774, and an electromagnetic component 761 is fixedly mounted inside the fixed shaft body 76, wherein the electromagnetic component 761 is located directly below the magnetic block 775, and when the electromagnetic component 761 is energized, an attractive force is generated on the magnetic block 775, wherein the electromagnetic component 761 is electrically connected to the induction element 79, and the outer wall of the extension shaft body 774 does not contact the inner wall of the electromagnetic component 761.

[0042] The rotating panel 75 of the present invention includes a groove portion 751 and a protrusion portion 752. The groove portion 751 is parallel to one side of the baffle plate 72. Fig.12 As shown, Fig.12 In the middle a figure, the groove portion 751 is parallel to one side of the baffle 72. Fig.12In the diagram b, the panel 75 is rotated to adjust the angle, and the protrusion 752 blocks the oil-permeable surface of the damping hole 31 to reduce the oil permeation amount of the damping hole 31;

[0043] Combination Fig.11 As shown, the protrusion 752 on the rotating panel 75 can also be composed of a plurality of arc-shaped portions with different outer diameters, so that the blocking area of ​​the oil-permeable surface of the damping hole 31 is also different, and it has adjustability.

[0044] Specifically, the rider can adjust the oil permeable area of ​​the damping hole 31 and the preload force of the spring body 6 before riding, and rotate the rotating member 41, which will drive the regulating sleeve 11 to rotate, and then the regulating sleeve 11 drives the sliding shaft 73 to rotate, so that the sliding shaft 73 drives the plate body 7 and the multiple baffles 72 thereon to rotate synchronously, and the oil permeable area of ​​the damping hole 31 is changed according to the rotation direction. At the same time, the preload force of the spring body 6 can be adjusted by rotating the regulator 5, so that the regulator 5 moves up or down, thereby changing the length of the spring body 6. After the adjustment is completed, when the rider passes through the speed bump quickly: combined with Figure 3 , 7 -10, for the convenience of description, when the wheel just contacts the speed bump, the piston rod 2 moves downward in the oil cylinder 1, and the piston rod 2 drives the piston body 3 to move downward. During the descending process, the hydraulic oil is converted through multiple damping holes 31, and at the same time, the hydraulic oil will give resistance to the piston body 3 and the parts above it, and then the conical force plate frame 771 will be damped by the hydraulic oil, and the conical force plate frame 771 will move upward. Due to the high speed of the vehicle, when the wheel just contacts the speed bump, it will be affected by the impact force of the speed bump, and then the piston rod 2 drives the piston body 3 to move quickly. The conical force-bearing plate frame 771 corresponding to the lower connecting sleeve 74 is subjected to a strong damping force, so that the conical force-bearing plate frame 771 drives the force-bearing shaft body 77 to perform a rapid upward movement, and the force-bearing shaft body 77 below the force-bearing shaft body 77 will perform a synchronous upward movement with it under the action of the extension shaft body 774. During the upward process of the force-bearing shaft body 77, the annular plate frame 772 on it will squeeze the constant force spring 70 on the fixed shaft body 76, and at the same time, the limit shaft body 773 on the annular plate frame 772 will move along the trajectory of the sliding area 781;

[0045] In accordance with the above, under normal circumstances, on ordinary bumpy roads, the movement of the limit shaft 773 will only be within the sliding area 781. When passing through a speed bump quickly or when the bumpiness is more serious, the limit shaft 773 will move to the upper spiral area 782. When the limit shaft 773 enters the upper spiral area 782, the limit shaft 773 will touch the sensing element 79 in the upper spiral area 782 (such as Fig.10As shown), it is mentioned above that "the sensing element 79 in the upper connecting sleeve 74 is located in the lower spiral area 783, and the sensing element 79 in the lower connecting sleeve 74 is located in the upper spiral area 782"; therefore, when the limiting shaft 773 in the upper connecting sleeve 74 moves in the upper spiral area 782, it will not touch the corresponding sensing element 79; when the sensing element 79 is triggered, the electric magnetic group is energized to generate an attractive force on the magnetic block 775, thereby accelerating the descending speed of the force-bearing shaft 77, and then the limiting shaft 773 on the annular plate frame 772 The force bearing shaft 77 will quickly move along the track of the upper spiral area 782. When the limit shaft 773 moves along the track of the upper spiral area 782, the annular plate frame 772 will drive the force bearing shaft 77 to rotate. Since the force bearing shaft 77 is slidably connected to the fixed shaft 76, and the rotating panels 75 are connected through the fixed shaft 76, the fixed shaft 76 rotates in the connecting sleeve 74. During the rotation process, the raised portion 752 on the rotating panel 75 will block the oil permeable surface of the damping hole 31 to reduce the oil permeation amount of the damping hole 31 (such as Fig.12 b), thereby suppressing the movement of the piston body 3 and playing a damping effect, thereby reducing the movement path of the spring body 6, and avoiding the situation that the movement path of the spring body 6 is too long and the vehicle support is unstable during the reset process. In this state, when the wheel contacts the speed bump, the damping effect of the spring body 6 and the hydraulic oil has offset most of the impact force given by the speed bump, thereby improving the comfort of the rider when passing the speed bump quickly compared with the prior art;

[0046] When the wheel passes over the highest point of the speed bump, the spring body 6 is ready to reset. At this time, the piston rod 2 drives the piston body 3 to move in the opposite direction. Then the conical force-bearing plate frame 771 corresponding to the upper connecting sleeve 74 will be subjected to a certain resistance, and the conical force-bearing plate frame 771 will move downward, and then the force-bearing shaft body 77 and the annular plate frame 772 thereon will move synchronously with it. During the movement, the limiting shaft body 773 of the outer wall of the annular plate frame 772 will enter the sliding area 781 from the upper spiral area 782. During this process, the rotating panel 75 moves in the opposite direction to make the protruding portion 752 transform to the groove portion 751, and the oil permeability area of ​​the damping hole 31 increases. At this time, the spring body 6 is in a rapid reset state (but there is still some distance from complete reset). The hydraulic oil still gives resistance to the conical force-bearing plate frame 771, and then the limiting shaft 773 moves downward along the trajectory of the sliding area 781, that is, enters the lower spiral area 783, so that the limiting shaft 773 acts on the sensing element 79 in the lower spiral area 783, and the electric magnetic group is energized to generate an attractive force on the magnetic block 775, thereby accelerating the rising speed of the force-bearing shaft 77. When the limiting shaft 773 moves along the trajectory of the lower spiral area 783, it will drive the annular plate frame 772 to rotate. The above-mentioned rotation operation of the annular plate frame 772 is repeated, and the protrusion 752 blocks the oil-permeable surface of the damping hole 31 again to reduce the oil penetration of the damping hole 31 (such as Fig.12 As shown in FIG. b), the movement of the piston body 3 is suppressed, and a damping effect is achieved, so that the resetting of the spring body 6 is suppressed. At the moment when the wheel touches the ground, the spring body 6 will still be in a compressed state, but the movement of the spring body 6 that can be compressed is reduced. Then, when the wheel contacts the ground, the compression amount of the spring body 6 is reduced, and the raised portion 752 will still block the oil-permeable surface of the damping hole 31. At this time, the piston body 3 is subjected to a strong damping force given by the hydraulic oil, so that the spring body 6 is in a slow resetting state, and during the resetting process, the damping effect of the hydraulic oil on the piston body 3 can be used to effectively absorb the elastic force, thereby preventing the rider's buttocks from leaving the seat cushion. Compared with the prior art, the support stability of the vehicle is improved when passing through a speed bump quickly.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric vehicle shock absorber, characterized in that: The invention comprises an oil cylinder (1) filled with hydraulic oil, a piston rod (2) and a piston body (3) fixedly mounted on one end of the piston rod (2) and located inside the oil cylinder (1), an aluminum bracket (4) fixedly mounted on the other end of the piston rod (2) and the end of the oil cylinder (1), wherein an adjuster (5) threadedly connected to the adjuster (5) is mounted on the outer wall of the oil cylinder (1), and a spring body (6) is connected between the adjuster (5) and the aluminum bracket (4) at the end of the piston rod (2); and A damping hole (31) is arranged on the piston body (3), and a plurality of damping holes (31) are distributed in an annular shape at equal angles on the piston body (3); Two plates (7) are respectively located on both sides of the piston body (3), and the two plates (7) are connected via a connecting shaft (71), and the connecting shaft (71) is rotatably connected to the inner wall of the piston body (3); A plurality of baffles (72) are fixedly mounted on each plate body (7), and the baffles (72) correspond to the damping holes (31) one by one; A sliding shaft (73) is fixedly mounted on one of the plates (7), and a regulating sleeve (11) rotatably connected to the inner wall of the oil cylinder (1) is mounted at the end of the oil cylinder (1). The sliding shaft (73) is located inside the regulating sleeve (11) and is slidably connected to the inner wall of the oil cylinder (1). The regulating sleeve (11) is rotated so that the sliding shaft (73) drives the two plates (7) and the plurality of baffles (72) thereon to rotate synchronously, thereby changing the oil flow area of ​​the damping hole (31). A connecting sleeve (74) is fixedly mounted on each baffle (72), and a rotating panel (75) is arranged at the bottom of the baffle (72). The rotating panels (75) are connected to each other via a fixed shaft (76). The fixed shaft body (76) is located in the damping hole (31), and the two ends of the fixed shaft body (76) are respectively limited and rotated in the connecting sleeve (74); the rotating panel (75) includes a groove portion (751) and a protrusion portion (752), and the groove portion (751) is parallel to one side of the baffle (72); a force-bearing shaft body (77) slidably connected to the fixed shaft body (76) is installed inside, and one end of the force-bearing shaft body (77) passes through the inner wall of the top of the connecting sleeve (74) and extends to the outside, and a conical force-bearing plate frame (771) is fixedly installed on one end of the force-bearing shaft body (77) located outside the connecting sleeve (74); an annular plate frame (772) is fixedly installed on the outer wall of the force-bearing shaft body (77) ), and a limited shaft body (773) is symmetrically installed on the annular plate frame (772), and an adjustment groove body (78) is provided on the inner wall of each connecting sleeve (74), and the limited shaft body (773) slides in a limited position in the adjustment groove body (78), and a sensing element (79) is installed in the adjustment groove body (78), and the sensing element (79) is located on the movement trajectory of the limited shaft body (773); a constant force spring (70) is connected between the annular plate frame (772) and the fixed shaft body (76), and the force-bearing shaft bodies (77) are connected by an extension shaft body (774), and the extension shaft body (774) slides in a limited position in the fixed shaft body (76), wherein the extension shaft body (774) A magnetic block (775) is also fixedly mounted on the upper portion, and an electromagnetic assembly (761) is fixedly mounted inside the fixed shaft (76), the electromagnetic assembly (761) is located directly below the magnetic block (775), and when the electromagnetic assembly (761) is energized, an attractive force is generated on the magnetic block (775), wherein the electromagnetic assembly (761) is electrically connected to the induction element (79), and the outer wall of the extension shaft (774) does not contact the inner wall of the electromagnetic assembly (761); each adjustment slot (78) comprises a sliding area (781), an upper spiral area (782) and a lower spiral area (783) respectively connected to the upper end and the lower end of the sliding area (781).

2. The electric vehicle shock absorber according to claim 1, characterized in that: The raised portion (752) is composed of a plurality of arc-shaped portions with different outer diameters.

3. The electric vehicle shock absorber according to claim 1, characterized in that: The plate body (7) and the baffle plate (72) are arranged in an inclined manner.

4. The electric vehicle shock absorber according to claim 1, characterized in that: A rotating member (41) is installed inside the aluminum bracket (4) at the end of the oil cylinder (1) and is rotatably connected to the inner wall thereof. The end of the regulating sleeve (11) passes through the inner wall of the top of the oil cylinder (1) and is fixedly connected to the rotating member (41). A return spring (12) is fixedly installed on the inner wall of the regulating sleeve (11), and the end of the sliding shaft (73) is in contact with the return spring (12).

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