Shock absorber of electric vehicle

Abstract

The invention discloses an electric vehicle shock absorber, and relates to the technical field of electric vehicle shock absorption equipment, the electric vehicle shock absorber comprises an oil cylinder, a piston rod and a piston body, the piston body is provided with a damping hole and plate bodies located on the two sides of the piston body respectively, and the two plate bodies are connected through a connecting shaft body; a plurality of baffles are fixedly mounted on each plate body; wherein a sliding shaft body is fixedly installed on one of the plate bodies, a regulation and control sleeve rotationally connected with the inner wall of the oil cylinder is installed at the end of the oil cylinder, and the sliding shaft body is located in the regulation and control sleeve and slidably connected with the inner wall of the regulation and control sleeve. According to the damping device, the damping holes are formed in the damping device, so that the flowing amount of oil penetrating through the damping holes changes, then the damping force is influenced, flowing of the oil and the damping force can be controlled more finely through the multiple damping holes, and a more stable and comfortable damping effect can be provided 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] FIG1 is a schematic diagram of an electric vehicle of the present invention passing through a speed bump;

[0024] Fig. 2 is a schematic diagram of the overall structure of the present invention;

[0025] FIG3 is a schematic diagram of the internal structure of the oil cylinder of the present invention;

[0026] FIG4 is a schematic diagram of the structure of the piston body of the present invention;

[0027] FIG5 is a schematic diagram of the separation of the piston body and the plate body structure of the present invention;

[0028] FIG6 is a schematic diagram of the structure of the regulating sleeve and the sliding shaft body of the present invention;

[0029] FIG7 is a schematic diagram of the internal structure of the connecting sleeve of the present invention;

[0030] FIG8 is a schematic diagram of a connecting sleeve, a fixed shaft body and a force-bearing shaft body of the present invention;

[0031] FIG9 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] FIG10 is a schematic diagram of the structure of the regulating tank of the present invention;

[0033] FIG11 is a schematic diagram of the structure of the raised portion of the present invention;

[0034] FIG. 12 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] Please refer to Figures 1 to 12. The present invention provides a technical solution: an electric vehicle shock absorber. As shown in Figure 1, when the 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, it will affect the rider's comfort 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 the technical problems in the background technology. The invention improves the technical problem, as shown in Figures 2 and 3, including a 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 cylinder 1, and an aluminum bracket 4 is fixedly mounted on the other end of the piston rod 2 and the end of the cylinder 1, wherein an adjuster 5 threadedly connected to the cylinder 1 is mounted 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, and the above components are all prior art, and when the preload force of the spring body 6 is adjusted, the adjuster 5 is rotated forward or reversely, so that the adjuster 5 moves up or down, thereby changing the length of the spring body 6;A plurality of damping holes 31 are arranged on the piston body 3, and the plurality of damping holes 31 are distributed at equal angles in a ring shape on the piston body 3. Since the oil cylinder 1 is filled with hydraulic oil, when the piston is raised or lowered, 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, and 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 body 7, and the baffles 72 correspond to the damping holes 31 one by one. As shown in FIG. 4-5, there is a certain distance between the baffles 72, and the damping holes 31 are located between each adjacent baffle 72. When the baffle 72 rotates, the oil permeability area of ​​the damping holes 31 will change, so that the oil flow through the damping holes 31 The momentum will change, thereby affecting the size of the damping force, and the plate body 7 and the baffle plate 72 are inclined so that the hydraulic oil can be evenly diverted to the damping hole 31. As shown in Figures 3-5, a sliding shaft body 73 is fixedly installed on one of the plate bodies 7. The plate body 7 with the sliding shaft body 73 is relatively close to one end of the cylinder 1 on which the aluminum bracket 4 is installed, and a regulating sleeve 11 rotatably connected to its inner wall is installed at the end of the cylinder 1. The sliding shaft body 73 is located inside the regulating sleeve 11 and is slidably connected to its inner wall. A rotating member 41 rotatably connected to its inner wall is installed inside the aluminum bracket 4 at the end of the cylinder 1. The end of the regulating sleeve 11 passes through the inner wall of the top of the 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 body 73 contacts the return spring 12. Rotating the regulating sleeve 11 causes the sliding shaft body 73 to drive the two plate bodies 7 and the multiple baffles 72 thereon to rotate synchronously to change the oil flow area of ​​the damping hole 31.

[0038] As shown in combination with Figures 3 to 6, 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 at the same time, the hydraulic oil in the 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 72, that is, to change the oil permeability area of ​​the damping hole 31, the rider only needs to rotate the rotating part 41, and the rotating part 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, thereby making the sliding shaft 73 The plate body 7 is driven to rotate, and the two plate bodies 7 are connected by a connecting shaft body 71, and then the multiple baffles 72 on the two plate bodies 7 rotate synchronously, and the oil permeability 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 permeability 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 permeability 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 plate 72, and a rotating panel 75 is arranged at the bottom of the baffle plate 72, and the rotating panels 75 are connected by a fixed shaft body 76, and 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, wherein a force-bearing shaft body 77 slidably connected to it is installed inside the fixed shaft body 76, 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 the end of the force-bearing shaft body 77 located outside the connecting sleeve 74 is fixedly installed with a conical force plate frame 771, as shown in FIG. 3, at this time, the piston performs a downward movement, and the hydraulic oil is A force will be applied to the conical force-bearing plate frame 771, so that the conical force-bearing plate frame 771 moves toward the direction of the connecting sleeve 74, thereby driving the force-bearing shaft body 77 to rotate. An annular plate frame 772 is fixedly installed on the outer wall of the force-bearing shaft body 77, and a limiting shaft body 773 is symmetrically installed on the annular plate frame 772. The annular plate frame 772 and the limiting shaft body 773 are both located inside the connecting sleeve 74, and an adjusting groove body 78 is provided on the inner wall of each connecting sleeve 74, and the limiting shaft body 773 is limitedly slid in the adjusting groove body 78. A sensing element 79 is installed in the adjusting groove body 78, and the sensing element 79 is located on the movement trajectory of the limiting shaft body 773.

[0040] As a further limitation in 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. For the convenience of description, the description is combined with Figures 3 and 7-10. It is mentioned above that "plate bodies 7 are installed on both sides of the piston body 3". The inner wall of the connecting sleeve 74 on the baffle 72 corresponding to each plate body 7 is shown in Figure 10. 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, there is a difference in the position of the sensing element 79 in the adjusting groove body 78. 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. As shown in FIG. 12 a, at this time, the groove portion 751 is parallel to one side of the baffle plate 72. In FIG. 12 b, the rotating panel 75 is adjusted in angle, and the protrusion portion 752 blocks the oil permeable surface of the damping hole 31 to reduce the oil permeable amount of the damping hole 31.

[0043] As shown in FIG. 11 , the protrusion 752 on the rotating panel 75 may 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 the device is adjustable.

[0044] Specifically, the rider can adjust the oil permeability area of ​​the damping hole 31 and the preload force of the spring body 6 before riding, and rotate the rotating member 41. The rotating member 41 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 permeability 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 adjuster 5 to make the adjuster 5 rise or fall, 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 Figures 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 descent, the hydraulic oil rotates through the multiple damping holes 31. The hydraulic oil will give resistance to the piston body 3 and the parts on it, and then the conical force-bearing plate frame 771 will be damped by the hydraulic oil, and the conical force-bearing plate frame 771 will move upward. Due to the high speed of the vehicle, when the wheel just touches the speed bump, it will be impacted by the speed bump, and then the piston rod 2 will drive the piston body 3 to move downward quickly. At this time, the conical force-bearing plate frame 771 corresponding to the lower connecting sleeve 74 will be subjected to a strong damping force, so that the conical force-bearing plate frame 771 drives the force-bearing shaft body 77 to move upward quickly, and the force-bearing shaft body 77 below the force-bearing shaft body 77 will move upward synchronously with it under the action of the extension shaft body 774. During the rising process of the force-bearing shaft body 77, the annular plate frame 772 thereon 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 normal circumstances, on ordinary bumpy roads, the movement of the limit shaft 773 will only be in 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 (as shown in FIG. 10). The above mentioned "the sensing element 79 in the upper connecting sleeve 74 is in the sliding area 781" is the same as the upper spiral area 782. In the lower spiral area 783, 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 will quickly move along 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 protrusion 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 (as shown in Figure b of Figure 12), thereby inhibiting the movement of the piston body 3 and playing a damping effect, thereby reducing the movement path of the spring body 6, 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 raised portion 752 is converted to the groove portion 751, and the oil permeable area of ​​the damping hole 31 is increased. At this time, the spring body 6 is in a fast reset state (but there is still a certain distance from the complete reset), but the hydraulic oil still gives resistance to the conical force-bearing plate frame 771, and then the limit shaft 773 will move downward along the trajectory of the sliding area 781, that is, enter the lower spiral area 783, so that the limit shaft 773 will act on the induction element 79 in the lower spiral area 783, and the electric magnetic group will be energized to generate an attractive force on the magnetic block 775, thereby accelerating the force The rising speed of the shaft 77 increases, and the limit shaft 773 drives the annular plate frame 772 to rotate when moving along the trajectory of the lower spiral area 783. The 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 permeation amount of the damping hole 31 (as shown in Figure b of Figure 12), thereby inhibiting the movement of the piston body 3 and achieving a damping effect. As a result, the resetting of the spring body 6 is inhibited. At the moment when the wheel touches the ground, the spring body 6 is still in a compressed state, but the spring body 6 can also The compressed movement path is reduced, so when the wheel contacts the ground, the compression amount of the spring body 6 is reduced, and the protrusion 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 reset state, and during the reset process, the damping effect of the hydraulic oil on the piston body 3 can 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 quickly passing through a speed bump.

[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 plate bodies (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). Rotating the regulating sleeve (11) causes the sliding shaft (73) to drive the two plate bodies (7) and the plurality of baffles (72) thereon to rotate synchronously, thereby changing the oil flow area of ​​the damping hole (31).

2. The electric vehicle shock absorber according to claim 1, characterized in that: 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 via a fixed shaft (76). The fixed shaft (76) is located in the damping hole (31), and both ends of the fixed shaft (76) are respectively limited and rotated in the connecting sleeve (74).

3. The electric vehicle shock absorber according to claim 2, characterized in that: The rotating panel (75) comprises a groove portion (751) and a protrusion portion (752), and the groove portion (751) is parallel to one side of the baffle (72).

4. The electric vehicle shock absorber according to claim 2, characterized in that: A force-bearing shaft body (77) slidably connected thereto is installed inside the fixed shaft body (76), and one end of the force-bearing shaft body (77) penetrates 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).

5. The electric vehicle shock absorber according to claim 4, characterized in that: An annular plate frame (772) is fixedly mounted on the outer wall of the force-bearing shaft body (77), and a limit shaft body (773) is symmetrically mounted on the annular plate frame (772). An adjustment groove body (78) is provided on the inner wall of each connecting sleeve (74), and the limit shaft body (773) slides in a limited manner in the adjustment groove body (78). A sensing element (79) is mounted in the adjustment groove body (78), and the sensing element (79) is located on the movement trajectory of the limit shaft body (773).

6. The electric vehicle shock absorber according to claim 5, characterized in that: 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 via an extension shaft body (774). The extension shaft body (774) slides within the fixed shaft body (76) in a limited manner, wherein a magnetic block body (775) is fixedly mounted on the extension shaft body (774), and an electromagnetic component (761) is fixedly mounted inside the fixed shaft body (76). The electromagnetic component (761) is located directly below the magnetic block body (775), and when the electromagnetic component (761) is energized, an attractive force is generated on the magnetic block body (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).

7. The electric vehicle shock absorber according to claim 5, characterized in that: Each adjustment slot body (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).

8. An electric vehicle shock absorber according to any one of claims 3 to 7, characterized in that: The raised portion (752) is composed of a plurality of arc-shaped portions with different outer diameters.

9. 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.

10. 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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