A multi-guide rod automobile shock absorber spring dismounting tool

Abstract

The utility model discloses a kind of automobile shock absorber spring dismounting tools of multiple guide rods, belong to shock absorber spring dismounting tool technical field, the device includes first driving part, guide rod group, first slider plate, first lower supporting plate and upper abutting assembly, first lower supporting plate is equipped with the first gap corresponding with shock absorber cylinder, guide rod group includes more than three guide rods, upper abutting assembly includes second slider plate and first cantilever, first cantilever is connected with second hook claw.The utility model can improve the stability when first slider plate moves, first slider plate moves more evenly stressed;Multiple working groups are formed on the multiple sides of guide rod group;First lower supporting plate can adapt to different outer diameter shock absorber spring;The driving element of first driving part can adopt manual jack, air cylinder, hydraulic cylinder or electric cylinder manual jack, when there is no gas source, hydraulic source or power supply and other external power source, shock absorber spring compression work can also be manually completed.

Description

Technical Field

[0001] This utility model belongs to the technical field of shock absorber spring removal and installation tools, specifically relating to a multi-guide rod automotive shock absorber spring removal and installation tool. Background Technology

[0002] Automotive shock absorbers are devices used to mitigate impacts and reduce vibrations in automobiles. They mainly consist of a shock absorber cylinder and a shock absorber spring. The shock absorber spring is sleeved on the outside of the shock absorber cylinder. The shock absorber cylinder generally uses a hydraulic shock absorber. Its working principle is that when the frame (or body) and the axle are subjected to vibration and relative movement occurs, the piston inside the shock absorber moves up and down. The oil in the shock absorber chamber repeatedly flows from one chamber to another through different orifices. The fluid converts the elastic energy of the spring into heat energy, making the vehicle's movement converge to the most reasonable level, thereby eliminating vibrations from the road surface, improving driving stability, and giving the driver a sense of comfort and stability. Shock absorber cylinders are wear-prone parts in automobiles, and the internal hydraulic oil gradually leaks with use. Shock absorber springs, as supporting components, are typically designed for a lifetime. When replacing existing shock absorbers, the springs need to be removed from the cylinder. Current shock absorber spring removal and installation tools generally use a claw to compress the spring from the top or bottom. For example, in Chinese utility model patent CN212095182 U, a clamping seat is connected to a hydraulic lifting seat via a horizontally arranged plate. The hydraulic lifting seat raises the clamping seat to compress the spring, and a column guides the horizontally arranged plate up and down. However, because the hydraulic lifting seat and clamping seat are located on opposite sides of the column, when the clamping seat presses against the spring from below, the clamping seat is connected to one end of the plate, and the hydraulic lifting seat is connected to the other end. This uneven force when the hydraulic lifting seat lifts the plate can cause the plate to tilt and jam, affecting the upward movement of the clamping seat. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a multi-guide rod automotive shock absorber spring disassembly and assembly tool, which improves the stability of the disassembly and assembly tool when compressing the spring and is adaptable to disassembly and assembly of various shock absorber springs.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A multi-guide rod automotive shock absorber spring removal and installation tool includes a first driving component, a guide rod assembly connected to the first driving component, a first slider plate connected to the first driving component and sliding on the guide rod assembly, a first lower support plate connected to the first slider plate, and an upper clamping assembly for clamping the shock absorber spring. The first lower support plate has a first notch corresponding to the shock absorber cylinder. The guide rod assembly includes three or more guide rods. The upper clamping assembly includes a second slider plate and a first cantilever movably connected to the guide rods. A second hook is connected to the first cantilever.

[0006] Furthermore, the three or more guide rods are arranged in a circular array with the center of the first slider plate as the center point.

[0007] Furthermore, each guide rod is movably connected to a first cantilever, and the second pawl on any one of the multiple first cantilevers and the second pawl on the adjacent first cantilever are used to abut against the shock absorber spring. The first cantilevers on any two adjacent guide rods among the three or more guide rods form a working group, and the first cantilevers on the three or more guide rods are combined in pairs to form multiple working groups.

[0008] Furthermore, a second lower support ring is detachably connected to the first slider plate. The second lower support ring and the corresponding second hook above it are used to compress the shock absorber spring. The second hook switches between a first working position and a second working position. Of the two second hooks above the first lower support plate or the second lower support ring, one second hook is located in the first working position and the other second hook is located in the second working position.

[0009] Furthermore, the second hook is movably connected to the first cantilever via a height adjustment assembly. The height adjustment assembly includes a height adjustment screw movably connected to the first cantilever, a height adjustment nut connected to the height adjustment screw, and a limiting sleeve connected to the height adjustment nut. The second hook includes a hook portion and an extension post connected to the hook portion. The extension post passes through the limiting sleeve, and a retaining ring is detachably connected to the extension post.

[0010] Furthermore, the first slider plate has a first inner hole on one side, and the first lower support plate is connected to a first hole rod corresponding to the first inner hole. The first lower support plate is rotatably connected to the first slider plate through the first hole rod.

[0011] Furthermore, the guide rod assembly also includes an upper top plate and a lower bottom plate connected to the guide rod.

[0012] Furthermore, the upper clamping assembly also includes a second driving member, which includes a second lead screw movably connected to the second slider plate and a second handwheel connected to the second lead screw. The second lead screw passes through the upper top plate and is threadedly connected to the upper top plate.

[0013] Furthermore, the first driving component includes a frame and a driving element, wherein the frame includes a top plate.

[0014] Furthermore, the driving element includes a piston rod that passes through the top plate of the frame, and the first slider plate is connected to the piston rod. The driving element is a jack, a cylinder, a hydraulic cylinder, or an electric cylinder.

[0015] Furthermore, the driving element includes a first lead screw and a first handwheel connected to the first lead screw. The first lead screw is movably connected to the lower base plate and the upper top plate. The first lead screw is provided with a first external thread corresponding to the first slider plate and a second external thread corresponding to the second slider plate. When the first lead screw rotates, it drives the first slider plate and the second slider plate to move towards each other or away from each other.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0017] 1. Setting multiple guide rods to guide the movement of the first slider plate can improve the stability of the first slider plate during movement. The multiple guide rods are distributed in a circular array, and the first driving component is connected to the center of the first slider plate, so that the force is more even when the first slider plate moves.

[0018] 2. By setting three or more guide rods, the first cantilever on any two adjacent guide rods forms a working group, and multiple working groups are formed on multiple sides of the guide rod group. Any working group can participate in the disassembly and assembly of the shock absorber spring, which is convenient for staff to use as needed.

[0019] 3. The length of the first shoulder and the second shoulder of the first lower support plate is greater than the radius of the notch. Compared with the existing fixed-size chuck, the first lower support plate can adapt to shock absorber springs with different outer diameters. The first lower support plate is rotatably connected to the first slider plate through the first hole rod. The first lower support plate can follow the shock absorber spring to offset a certain angle, ensuring that the upper surface of the first lower support plate can better fit the shock absorber spring. When the shock absorber spring is offset, the spring can continue to be compressed. The shock absorber spring can be disassembled without ensuring that the shock absorber spring and the shock absorber cylinder are in a completely vertical state, making disassembly and assembly convenient.

[0020] 4. The first cantilever is rotatably connected to the guide rod, which facilitates the overall movement of the second hook. The second hook is connected to the first cantilever through the height adjustment component, which facilitates the individual fine adjustment of the height of each second hook. The second hook can move back and forth within the limit sleeve, which facilitates the adjustment of the front and rear positions so that the hook part of the second hook hooks onto the shock absorber spring.

[0021] 5. The second hook can switch between the first working position and the second working position, which is convenient to cooperate with the first lower support plate or the second lower support ring below, so that the shock absorber spring can be disassembled and assembled from different sides of the tool.

[0022] 6. The second lower support ring connected to the other side of the first slider plate can also complete the disassembly and assembly of the shock absorber spring by cooperating with the second hook above. The helical direction of the shock absorber spring applicable to the second lower support ring is opposite to that of the shock absorber spring applicable to the first lower support plate, so that the tool can adapt to shock absorber springs with two helical directions.

[0023] 7. When replacing the shock absorber cylinder, the shock absorber cylinder does not need to be fixed when compressing the shock absorber spring using the first lower support plate and the second hook claw. When replacing the new shock absorber cylinder, it is not necessary to ensure that the shock absorber cylinder is in a vertical position to complete the connection between the new shock absorber cylinder and the shock absorber spring. Moreover, the shock absorber spring only needs to be compressed once during the entire process of replacing the new shock absorber cylinder, which improves safety and work efficiency.

[0024] 8. The driving element of the first driving component can be a pneumatic cylinder, hydraulic cylinder or electric cylinder, which works by using an external air source, hydraulic source or power source. It can also be a manual jack, which can manually complete the compression of the shock absorber spring when there is no external power source such as air source, hydraulic source or power source.

[0025] 9. The driving element of the first driving component can also be a first lead screw and a first handwheel. The first lead screw is provided with a first external thread and a second external thread. It does not require the use of external air source or power source. It relies on human power to drive the first lead screw to rotate using the first handwheel to drive the first slider plate and the second slider plate to move towards each other. When the first slider plate and the second slider plate move towards each other, the shock absorber spring compression work is completed.

[0026] 10. The first handwheel can be connected to the lower or upper end of the first lead screw via a worm gear assembly, making it convenient for personnel to apply force. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model;

[0028] Figure 2 This is a schematic diagram of the structure at the first driving component in Embodiment 1;

[0029] Figure 3This is a top view of the first slider plate structure in Embodiment 1;

[0030] Figure 4 This is a side view structural diagram of Embodiment 1 of Embodiment 1;

[0031] Figure 5 This is a schematic diagram of one side structure of the first slider plate in Embodiment 1 of Embodiment 1;

[0032] Figure 6 This is a schematic diagram of the first lower support plate portion of Embodiment 1;

[0033] Figure 7 This is a top view of the second slider plate structure of Embodiment 1;

[0034] Figure 8 This is a schematic diagram of the second slider plate and the first cantilever structure of Embodiment 1;

[0035] Figure 9 This is a schematic diagram of the second hook structure of Embodiment 1;

[0036] Figure 10 This is a schematic diagram of the structure of the other side of the first slider plate in Embodiment 1 of Embodiment 1;

[0037] Figure 11 This is a top view of the second lower support ring structure of Embodiment 1;

[0038] Figure 12 This is a schematic diagram of the structure of Example 3;

[0039] Figure 13 This is a schematic diagram of the worm gear structure in Example 3;

[0040] Figure 14 This is a structural schematic diagram of Example 4;

[0041] Figure 15 This is a structural schematic diagram of Example 5;

[0042] Figure 16 This is a schematic diagram of the structure at the first slider plate in Embodiment 6;

[0043] Figure 17 This is a side view of the first slider plate in Embodiment 6. Detailed Implementation

[0044] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented based on the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0045] like Figure 1 and Figure 2 As shown, a multi-guide rod automotive shock absorber spring removal and installation tool includes a first driving component 2, a guide rod assembly 3, a first slider plate 4, a first lower support plate 5, and an upper clamping assembly. The guide rod assembly 3 is connected to the first driving component 2, and the first driving component 2 is centrally connected to the first slider plate 4 to drive the first slider plate 4 to move. The first driving component 2 includes a frame 1 and a driving element 20. The frame 1 includes a top plate 11, a bottom plate 12, and four support rods 13. The top plate 11 and the bottom plate 12 are both rectangular plates. The four support rods 13 are disposed between the top plate 11 and the bottom plate 12 and connect the two. The lower ends of the four support rods 13 are respectively connected to the four corners of the bottom plate 12, and the upper ends of the four support rods 13 are connected to the top plate 11. The drive element 20 is disposed within the frame 1. The drive element 20 is a cylinder, hydraulic cylinder, or electric cylinder. In this embodiment, the drive element 20 adopts an existing cylinder including a pneumatic control valve assembly. The drive element 20 includes a piston rod 21, a cylinder barrel, and a valve assembly (not shown in the figure). The cylinder barrel is disposed within the frame 1, and its lower end is connected to the frame bottom plate 12. The piston rod 21 penetrates the frame top plate 11, and its top end is located above the frame top plate 11. The frame bottom plate 12 is provided with a first air inlet 201 connected to the cylinder barrel's air passage, and the frame top plate 11 is provided with a second air inlet 202 connected to the cylinder barrel's air passage. Both the first air inlet 201 and the second air inlet 202 are connected to the valve assembly's air passage. The valve assembly is connected to the cylinder barrel to control the air passage to control the extension and retraction of the piston rod 21. The valve assembly adopts an existing pneumatic control valve assembly (e.g., a pressure regulating filter, etc.). The system consists of a three-position five-way pneumatic control valve, a pilot valve, and two pneumatic switches. A pressure regulating filter is connected to an external air source to filter air and regulate air pressure. The three-position five-way pneumatic control valve is connected to the pressure regulating filter. The pilot valve and the two pneumatic switches are both connected to the three-position five-way pneumatic control valve. The pilot valve is connected to the cylinder air path through the first air inlet 201 and the second air inlet 202. The two pneumatic switches include a first switch and a second switch, both of which are connected to the three-position five-way pneumatic control valve air path. Pressing the first switch controls the piston rod to rise, and pressing the second switch controls the piston rod to fall. This is a cylinder control air path system in the prior art (which will not be described in detail here). In this embodiment, the drive element 20 adopts an Airtac SC200*450 high-thrust standard cylinder, which is connected to an external air source through a valve group to control the lifting and lowering of the piston rod 21. The drive element 20 can also be an existing electric cylinder, which is connected to an external circuit and then the extension and retraction of the electric cylinder piston rod is controlled by two jog buttons (the control system adopts the existing electric cylinder control system, which will not be described in detail) to achieve the purpose of lifting; or the drive element 20 can also be an existing hydraulic cylinder, which is connected to an external hydraulic pipeline to control the extension and retraction of the hydraulic cylinder piston rod (the control system adopts the existing hydraulic cylinder control system, which will not be described in detail) to achieve the purpose of lifting.

[0046] like Figure 1 , Figure 2 and Figure 3 As shown, the top end of the piston rod 21 is connected to the center of the lower end face of the first slider plate 4. The first slider plate 4 is a rectangular plate. When the piston rod 21 moves up and down, it drives the first slider plate 4 to move up and down along the guide rod assembly 3. The guide rod assembly 3 is connected to the first driving member 2. The guide rod assembly 3 includes four guide rods 31, an upper top plate 32, and a lower bottom plate 33. The lower bottom plate 33 is connected to the frame top plate 11 and its shape corresponds to the shape of the frame top plate 11. The top end of the piston rod 21 passes through the frame top plate 11 and the lower bottom plate 33 and then connects to the first slider plate 4. The four guide rods 31 are arranged in a circular array with the center of the first slider plate 4 as the center point. The guide rods 31 are cylindrical rods. The lower ends of the four guide rods 31 are connected to the four corners of the lower bottom plate 33, and the upper ends of the four guide rods 31 are connected to the upper top plate 32. 2. The upper top plate 32 is rectangular, corresponding to the lower bottom plate 33. The first slider plate 4 is provided with four second through holes 401 corresponding to the guide rods 31. The second through holes 401 are fitted with oil-impregnated bearings to improve the smoothness of the first slider plate 4 when it moves up and down. The four guide rods 31 play a guiding role when the first slider plate 4 moves up and down. In addition, since the center of the lower end face of the first slider plate 4 is connected to the top of the piston rod 21, four ring array distribution guide rods 31 are also provided, so the force on the first slider plate 4 is more uniform and stable when it moves up and down.

[0047] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the first lower support plate 5 is connected to the first slider plate 4. The first slider plate 4 has a first inner hole 41 on one side. A first hole rod 53 corresponding to the first inner hole 41 is connected to the middle position of the inner side of the first lower support plate 5. The first inner hole 41 is a circular hole, and the first hole rod 53 is a cylindrical rod. The first hole rod 53 and the first inner hole 41 are clearance-fitted. The first lower support plate 5 is inserted into the first inner hole 41 through the first hole rod 53, thereby rotatably connecting with the first slider plate 4. The first lower support plate 5 is rotatable relative to the first slider plate 4. In this embodiment, the first inner hole 41 is a through hole that penetrates the first slider plate 4. The length of the first hole rod 53 is greater than the width of the first slider plate 4. The first hole rod 53 penetrates the first slider plate 4 through the first inner hole 41.

[0048] In this embodiment, the first lower support plate 5 is a U-shaped plate. The upper surface of the first lower support plate 5 can also be provided with an anti-slip pad. The middle position of the outer side of the first lower support plate 5 is provided with a first notch 501. The first lower support plate 5 forms a first shoulder 51 and a second shoulder 52 on both sides of the first notch 501. The first shoulder 51 and the second shoulder 52 have different horizontal heights. The horizontal height of the first lower support plate 5 gradually decreases spirally from the first shoulder 51 to the second shoulder 52. The first lower support plate 5 is used to compress the shock absorber spring. In use, the side of the first lower support plate 5 where the first notch 501 is located is used to insert the shock absorber spring through the side gap of the shock absorber spring. The first notch 501 corresponds to the outer diameter of the shock absorber cylinder so as to accommodate the shock absorber cylinder. The first shoulder 51, the second shoulder 52 and the plate surface next to the first notch 501 are used to support the shock absorber spring. The area of ​​the first notch 501 is A, and the surface area of ​​the first lower support plate 5 is B, where A ≤ 0.6B. The first notch 501 includes a semicircular portion 5011 and a rectangular portion 5012. The radius of the semicircular portion 5011 is R, where 20mm ≤ R ≤ 70mm. In this embodiment, R = 38mm. The lengths of the first shoulder 51 and the second shoulder 52 are both W1, where W1 ≥ R. In this embodiment, W1 = 60mm. The length of the first notch 501 is D, where D = 2R, and 2W1 > ​​D. The depth of 01 is S, the length of the rectangular part 5012 is the length of the first notch 501, the depth of the rectangular part 5012 is W2, W2 < R, in this embodiment W2 = 25mm, S = R + W2 = 63mm, the width of the first lower support plate 5 is W3, S < 0.7W3, that is, the depth of the first notch 501 is less than 70% of the width of the first lower support plate 5, in this embodiment W3 = 130mm, the depth of the first notch 501 is less than half the width of the first lower support plate 5.In this embodiment, A < 0.5B. The plate surface next to the first notch 501 on the first lower support plate 5 can support most of the shock absorber springs. Since the diameter of the existing automotive shock absorber cylinder is basically less than 76mm (the length of the first notch 501), the length and depth of the first notch 501 in this embodiment can accommodate most of the automotive shock absorber cylinder. The remaining part of the first lower support plate 5 in the width direction after removing the first notch 501 can accommodate the shock absorber springs. The length of the first shoulder 51 plus the length of the second shoulder 52 plus the length of the rectangular part 5012 equals the length of the first lower support plate 5. In this embodiment, the length of the first lower support plate 5 = 196mm. The working width of the first lower support plate 5 that can accommodate the shock absorber spring is X, which is measured from the center of the semicircle 5011. The working width of the first lower support plate 5 is the radius of the semicircle 5011 plus the distance from the deepest part of the first notch 501 to the welded part at the root of the first hole rod 53. In this embodiment, X = 38mm + 45mm = 83mm, which corresponds to an outer diameter of 166mm (2X) for the shock absorber spring that can be accommodated. However, the outer diameter of the lower end of most automotive shock absorber springs on the market is less than 166mm. Therefore, the first lower support plate 5 in this embodiment is suitable for most automotive shock absorber springs on the market (for a very few shock absorber springs with a larger outer diameter, a larger first lower support plate 5 is used).

[0049] When the first lower support plate 5 is in use, after it is inserted into the shock absorber spring, the cylinder of the first drive component 2 pushes the first slider plate 4 upward through the piston rod 21. Driven by the first slider plate 4, the first lower support plate 5 moves upward to compress the shock absorber spring. When the shock absorber spring is not vertical but offset at a certain angle (due to uneven force on the chuck or claw used to press the shock absorber spring), the first lower support plate 5 can offset at a certain angle along with the shock absorber spring (because the first lower support plate 5 can rotate relative to the first slider plate 4, and the angle is not fixed, it can offset at a certain angle along with the shock absorber spring to maintain force balance on the first shoulder 51 and the second shoulder 52). This ensures that the upper surface of the first lower support plate 5 can better contact the shock absorber spring, and the spring can continue to be compressed even when it is offset. For shock absorber springs, it is not necessary to ensure that the shock absorber spring and shock absorber cylinder are in a completely vertical state (existing technologies using chucks to compress springs require that the shock absorber spring and shock absorber cylinder be kept in a vertical state). For example, existing shock absorber spring removal and installation tools, such as the hydraulic spring remover disclosed in patent announcement number CN213859083U, use a chuck at the bottom and a chuck at the top (some tools use hooks). When the shock absorber spring is compressed by the chuck rising, the lower chuck is in a horizontal state, while the upper chuck (or hook) causes the shock absorber spring and shock absorber cylinder to shift due to differences in height and force. Since the lower chuck is horizontal and cannot rotate, it is easy for the lower chuck to be subjected to force on one side. Continued compression of the spring can easily lead to uneven force on the shock absorber spring, causing slippage. After removing the top rubber nut, the shock absorber spring is prone to popping out, causing an accident. In this embodiment, the first lower support plate 5 can follow the shock absorber spring to shift at a certain angle, ensuring that the shock absorber spring is subjected to uniform force under shifting conditions, thus improving safety.

[0050] like Figure 1 , Figure 4 and Figure 7As shown, the upper clamping assembly is used to clamp the shock absorber spring from the upper part of the shock absorber spring. The upper clamping assembly includes a second driving member, a second slider plate 62, a first cantilever 63, and a second hook 7. The second driving member includes a second lead screw 612 and a second handwheel 613. In this embodiment, the second slider plate 62 is a rectangular plate with four third through holes 621 corresponding to the four guide rods 31. The second slider plate 62 slides on the guide rods 31 through the third through holes 621. The lower end of the second lead screw 612 is movably connected to the second slider plate 62 through a lead screw bearing seat. The lower end of the second lead screw 612 is rotatably connected to the bearing in the lead screw bearing seat. A baffle plate is welded to the lower end of the second lead screw 612. The diameter of the baffle plate is larger than the diameter of the lead screw, so that the lead screw can drive the lead screw bearing seat to move up and down. The second slider plate 62 has four A third threaded hole 622 is provided. The lead screw bearing seat is fixedly connected to the second slider plate 62 by bolts and the third threaded hole 622. The second lead screw 612 passes through the upper top plate 32 and is threadedly connected to the upper top plate 32. The upper end of the second lead screw 612 extends above the upper top plate 32. The second handwheel 613 is connected to the upper end of the second lead screw 612. When the second handwheel 613 is rotated, the second lead screw 612 rotates relative to the upper top plate 32, thereby moving up or down. By adjusting the rotation direction of the second handwheel 613, the upward or downward movement of the second lead screw 612 is changed. The movement of the second lead screw 612 drives the second slider plate 62 to move up or down.

[0051] like Figure 1 , Figure 4 and Figure 8 As shown, each guide rod 31 is movably connected to a first cantilever 63. The first cantilever 63 is a rectangular block. The inner end of the first cantilever 63 is provided with a first collar 631 and a second collar 632. The first collar 631 and the second collar 632 are both sleeved on the guide rod 31. The first collar 631 and the second collar 632 are fitted with oil-impregnated bearings, which are also located in the third through hole 621 of the second slider plate 62. This improves the smoothness of the second slider plate 62 and the first cantilever 63 when moving up and down. Thus, the first cantilever 63 is sleeved on the guide rod 31 and can rotate relative to the guide rod 31. The first collar 631 is located above the second slider plate 62, and the second collar 632 is located below the second slider plate 62. When the second slider plate 62 moves up and down, it drives the first cantilever 63 to move up and down as a whole, thereby adjusting the height of the first cantilever 63.

[0052] like Figure 1 , Figure 8 and Figure 9As shown, the second hook 7 is movably connected to the first cantilever 63 via a height adjustment assembly. The height adjustment assembly is connected to the outer end of the first cantilever 63 and includes a height adjustment screw 81, a height adjustment nut 82, and a limiting sleeve 83. The outer end of the first cantilever 63 is provided with a third collar 633 and a third collar 634, which are distributed vertically. The height adjustment screw 81 passes through the third collar 633 and the third collar 634 from top to bottom. Baffles 811 are provided at the upper and lower ends of the height adjustment screw 81 to limit the vertical displacement of the height adjustment screw 81. The inner diameter of the third collar 633 and the third collar 634 is larger than the height adjustment screw 833. The outer diameter of the screw 81 is adjusted so that the height adjustment assembly is rotatably connected to the first cantilever 63. The top end of the height adjustment screw 81 is connected to an adjusting block 812. By rotating the adjusting block 812, the height adjustment screw 81 can be driven to rotate within the third collar 633 and the third collar 634. The portion of the height adjustment screw 81 located between the third collar 633 and the third collar 634 is threaded. The height adjustment nut 82 is located between the third collar 633 and the third collar 634 and is threadedly connected to the height adjustment screw 81. The limiting sleeve 83 is connected to the height adjustment nut 82. The limiting sleeve 83 is arranged laterally, and the outer wall of the limiting sleeve 83 is connected to the height adjustment nut 82. The second hook 7 includes a hook portion 71 and an extension post 72. The hook portion 71 is used to hook onto the shock absorber spring. The extension post 72 is connected to the side wall of the hook portion 71. The outer diameter of the extension post 72 is smaller than the inner diameter of the limiting sleeve 83. The extension post 72 passes through the limiting sleeve 83. The length of the extension post 72 is greater than the length of the limiting sleeve 83. Thus, the forward and backward movement of the extension post 72 within the limiting sleeve 83 can adjust the forward and backward position of the hook portion 71. A retaining ring 721 is detachably connected to the tail end of the extension post 72. The retaining ring 721 adopts an existing retaining spring. The tail end of the extension post 72 is provided with a retaining ring groove corresponding to the retaining ring 721, thereby limiting the position of the retaining ring 721. The outer diameter of the retaining ring 721 is greater than the outer diameter of the limiting sleeve 83, thereby limiting the forward and backward movement of the extension post 72 to a certain range. When the height adjustment screw 81 is rotated, the height adjustment nut 82 and the limit sleeve 83 do not rotate with it, thus changing the height of the height adjustment nut 82 and the limit sleeve 83, thereby adjusting the height of the second hook 7, which is suitable for situations where the height of the second hook 7 needs to be finely adjusted.

[0053] like Figure 1 , Figure 4 and Figure 5As shown, since the second hook 7 is connected to the outer end of the first cantilever 63 via the height adjustment component, the left and right positions of the second hook 7 can be adjusted when the first cantilever 63 is rotated relative to the guide rod 31. Since the guide rod group 3 includes four guide rods 31, and a first cantilever 63 is movably connected to each guide rod 31, the second hook 7 on any one of the four first cantilever 63 forms a clamping group with the second hook 7 on the adjacent first cantilever 63 to clamp the shock absorber spring. The first cantilever 63 on any two adjacent guide rods 31 form a working group. The four first cantilever 63 on the four guide rods 31 are combined in pairs to form four working groups. Thus, each side of the guide rod group 3 has two second hooks 7 for hooking the shock absorber spring and clamping the shock absorber spring from above. Since the first inner hole 41 is a through hole, extending from the front to the rear of the first slider plate 4, when the first hole rod 53 of the first lower support plate 5 is inserted into the first inner hole 41 from the front side of the first slider plate 4, the first lower support plate 5 cooperates with the two corresponding first cantilever arms 63 and second hooks 7 on the two guide rods 31 on the front side to form a working assembly for compressing the shock absorber spring; when the first hole rod 53 of the first lower support plate 5 is inserted into the first inner hole 41 from the rear side of the first slider plate 4, the first lower support plate 5 cooperates with the two corresponding first cantilever arms 63 and second hooks 7 on the two guide rods 31 on the rear side to form a working assembly for compressing the shock absorber spring.

[0054] like Figure 1 , Figure 2 , Figure 10 and Figure 11As shown, a second lower support ring 56 is detachably connected to the first slider plate 4. The second lower support ring 56 is connected to one side of the first slider plate 4. The second lower support ring 56 adopts the chuck of an existing automotive shock absorber spring compressor (the chuck is also called a pressure plate or C-shaped clamp, such as the pressure plate of the non-removable shock absorber spring removal and installation tool produced by Fuyang File Technology Co., Ltd.). The second lower support ring 56 is C-shaped, and a second notch 561 is formed on the second lower support ring 56. The second notch 561 is semi-circular and corresponds to the shock absorber cylinder. The height of the second lower support ring 56 spirals from one end of the C-shaped ring to the other end of the C-shaped ring, and the spiral direction is the same as that of the first lower support ring. The spiral direction of plate 5 is opposite, so that the spiral direction of the damper spring applicable to the second lower support ring 56 is opposite to that of the damper spring applicable to the first lower support plate 5. The second lower support ring 56 is provided with a spring wire groove 562 to accommodate the damper spring wire. In use, the second lower support ring 56 is inserted into the damper spring from the side, the damper cylinder is located in the second notch 561, and the spring wire of the damper spring is located in the spring wire groove 562. The second lower support ring 56 moves upward under the action of the first slider plate 4, thereby compressing the damper spring upward. The second lower support ring 56 and the two second hooks 7 above it on the same side complete the compression of the damper spring. The first slider plate 4 is provided with a first threaded hole 42 on both the left and right sides. A first threaded rod 571 is threadedly connected to the first threaded hole 42. The second lower support ring 56 is connected to the left or right side of the first slider plate 4 through the first threaded rod 571. Different sizes of second lower support rings 56 have different outer diameters and different diameter second notches 561. When it is necessary to compress shock absorber springs of different diameters, the corresponding second lower support rings 56 can be selected.

[0055] like Figure 1 and Figure 8As shown, the four first cantilever arms 63 on the four guide rods 31 form four working groups on the four sides of the guide rod assembly 3. They work together with the second hook 7 and the first lower support plate 5 or the second lower support ring 56 below to form a working assembly, which can complete the compression of the shock absorber spring and facilitate the use of the operator as needed. In order to facilitate the operation of the second hook 7 on different sides, the second hook 7 can switch between a first working position and a second working position. In the first working position, the hook part 71 is located on one side of the first cantilever arm 63 (on the left side in this embodiment); in the second working position, the hook part 71 is located on the other side of the first cantilever arm 63 (on the right side in this embodiment); of the two second hooks 7 above the first lower support plate 5 or the second lower support ring 56, one second hook 7 is located in the first working position and the other second hook 7 is located in the second working position. Both second hooks 7 face inward so that they can hook the shock absorber spring on the same side and press against the shock absorber spring from above. For example, when the first lower support plate 5 is set in front of the first slider plate 4, the second hooks 7 of the two upper first cantilever 63 are in the first working position, with the hook part 71 located on the left side of the first cantilever 63, and the second hooks 7 of the left side are in the second working position, with the hook part 71 located on the right side of the first cantilever 63. Thus, both of the second hooks 7 face inward and can hook the shock absorber spring.

[0056] In this embodiment, when using the tool, the side of the shock absorber spring is pushed towards the first lower support plate 5. The first lower support plate 5 inserts the spring from the side of the shock absorber spring, and the shock absorber cylinder is located in the first notch 501. The height of the two corresponding first cantilever 63 above the first lower support plate 5 is adjusted by the second handwheel 613, and then the height of the second hook 7 is finely adjusted by the height adjustment component so that the second hook 7 hooks onto the spring wire of the shock absorber spring. Thus, the second hook 7 presses against the upper end of the shock absorber spring, the cylinder works, the piston rod 21 extends upward, and the first slider plate 4 drives the first lower support plate 5 to move upward along the guide rod 31. 5. During the upward movement, the shock absorber spring is compressed. After the shock absorber spring is compressed to the predetermined position, the shock absorber cylinder can be separated from the shock absorber spring by removing the top rubber nut at the top of the shock absorber. The shock absorber cylinder is then moved downwards out of the shock absorber spring, and a new shock absorber cylinder is inserted into the shock absorber spring from below (at this time, the spring is still in a compressed state). Then, the top rubber nut at the top of the shock absorber cylinder is threaded to the top of the shock absorber cylinder, completing the replacement of the shock absorber cylinder. The cylinder operates, the piston rod 21 retracts downwards, and the first slider plate 4 drives the first lower support plate 5 to move downwards along the guide rod 31, gradually returning the shock absorber spring to its original position. The shock absorber spring only needs to be compressed once during the entire process.

[0057] Example 2

[0058] The difference from Embodiment 1 is that the drive element 20 uses a manual jack, which includes existing screw jacks, rack and pinion jacks, hydraulic jacks and scissor jacks. The tool in this embodiment can disassemble the shock absorber spring by manual jack without external air source, power source or hydraulic source.

[0059] Example 3

[0060] like Figure 12 and Figure 13 As shown, the difference from Embodiment 1 is that the upper clamping assembly includes a second slider plate 62, a first cantilever 63, and a second hook 7. The upper clamping assembly does not have a driving component. The driving element 20 in this embodiment includes a first lead screw 25 and a first handwheel 23. The first lead screw 25 passes through the top frame plate 11, the bottom plate 33, the first slider plate 4, and the second slider plate 62 from bottom to top. In this embodiment, the top frame plate 11 and the bottom plate 33 are integrally formed as a single plate. The lower end of the first lead screw 25 passes through... The transmission assembly is connected to the first handwheel 23. In this embodiment, the transmission assembly is a worm gear assembly, which includes a worm wheel 26 and a worm 27. The worm wheel 26 is disposed inside the housing, which is located inside the frame 1. The worm wheel 26 is sleeved on the lower end of the first lead screw 25. The first handwheel 23 is connected to one end of the worm 27. The first handwheel 23 is located on one side of the frame 1 and perpendicular to the ground, making it convenient for personnel to apply force. When the first handwheel 23 is rotated, it drives the worm 27 to rotate, thereby driving the first lead screw 25 through the worm wheel 26. The first lead screw 25 is rotatably connected to the lower base plate 33 via a bearing, and is also rotatably connected to the upper top plate 32 via a bearing at its upper end. The portion of the first lead screw 25 located between the upper top plate 32 and the lower base plate 33 is provided with a first external thread 251 and a second external thread 252. The first external thread 251 and the second external thread 252 are symmetrically arranged, and the thread directions of the first external thread 251 and the second external thread 252 are opposite. The first slider plate 4 is threadedly connected to the first lead screw 25 via the first external thread 251, and the second slider plate 62 is threadedly connected to the first lead screw 25 via the second external thread 252. When the first lead screw 25 rotates, it drives the first slider plate 4 and the second slider plate 62 to move towards each other or away from each other. In this embodiment, the first inner hole 41 on the first slider plate 4 is a blind hole, and the depth of the blind hole is less than half the side length of the first slider plate 4. The length of the first hole rod 53 corresponds to the first inner hole 41. When the first slider plate 4 and the second slider plate 62 move towards each other, they complete the compression of the damper spring.

[0061] Example 4

[0062] like Figure 14As shown, the difference from Embodiment 1 is that the upper clamping assembly includes a second slider plate 62, a first cantilever 63, and a second hook 7. The upper clamping assembly does not have a driving component. The driving element 20 in this embodiment includes a first lead screw 25 and a first handwheel 23. The first lead screw 25 passes through the upper top plate 32, the second slider plate 62, and the first slider plate 4 from top to bottom. The lower end of the first lead screw 25 is rotatably connected to the lower bottom plate 33 through a bearing, and the first lead screw 25 is also rotatably connected to the upper top plate 32 through a bearing. The first handwheel 23 is connected to the top of the first lead screw 25 and is located above the upper top plate 32. The first handwheel 23 can drive the first lead screw 25 to rotate. The part of the first lead screw 25 located between the upper top plate 32 and the lower bottom plate 33... The first external thread 251 and the second external thread 252 are provided symmetrically. The first external thread 251 and the second external thread 252 have opposite thread directions. The first slider plate 4 is threadedly connected to the first lead screw 25 through the first external thread 251, and the second slider plate 62 is threadedly connected to the first lead screw 25 through the second external thread 252. When the first lead screw 25 rotates, it drives the first slider plate 4 and the second slider plate 62 to move towards each other or away from each other. In this embodiment, the first inner hole 41 on the first slider plate 4 is a blind hole with a depth less than half the side length of the first slider plate 4. The length of the first hole rod 53 corresponds to the first inner hole 41. When the second slider plate 62 moves towards each other, it completes the compression of the damper spring.

[0063] Example 5

[0064] like Figure 15 As shown, the difference from Embodiment 3 is that the top end of the first lead screw 25 is connected to the first handwheel 23 via a transmission assembly. In this embodiment, the transmission assembly is a worm gear assembly (or, if necessary, an existing bevel gear set). The worm 27 of the worm gear assembly is connected to the first handwheel 23. The lower end of the first lead screw 25 is rotatably connected to the lower base plate 33 via a bearing. When the first handwheel 23 is rotated, the worm gear assembly drives the first lead screw 25 to rotate. When the first lead screw 25 rotates, it drives the first slider plate 4 and the second slider plate 62 to move towards each other or away from each other. Since the first handwheel 23 is positioned at a high position, it is convenient for personnel to stand and apply force to the first handwheel 23.

[0065] Example 6

[0066] like Figure 16 and Figure 17As shown, the difference from Embodiment 1 is that the guide rod assembly 3 in this embodiment includes three guide rods 31, which are arranged in a circular array with the center of the first slider plate 4 as the center point (the guide rods 31 of the guide rod assembly 3 can also be set to five, six or more, and are also arranged in a circular array. The first slider plate 4 is correspondingly set to be pentagonal, hexagonal or other polygonal). The first slider plate 4 is a triangular plate, which facilitates the cantilever to cooperate in pairs on the three sides of the guide rod assembly 3 to form three working groups. The first lower support plate 5 or the second lower support ring 56 can cooperate with the corresponding upper cantilever and hook to complete the compression of the shock absorber spring. The first sliding block 4 of the triangle has a first inner hole 41 on each of its three sides. The first inner hole 41 is a blind hole. The length of the first hole rod 53 corresponds to the first inner hole 41. The first inner hole 41 has a first threaded hole 42 on both sides. Thus, the first sliding block 4 of the triangle can be connected to the first lower support plate 5 or the second lower support ring 56 on each of its three sides. The first lower support plate 5 or the second lower support ring 56 works in conjunction with the two cantilever arms and two hooks above to complete the compression of the shock absorber spring.

[0067] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A multi-guide rod automotive shock absorber spring removal and installation tool, characterized in that, The device includes a first driving member (2), a guide rod assembly (3) connected to the first driving member (2), a first slider plate (4) connected to the first driving member (2) and sliding on the guide rod assembly (3), a first lower support plate (5) connected to the first slider plate (4), and an upper clamping assembly for clamping the shock absorber spring. The first lower support plate (5) is provided with a first notch (501) corresponding to the shock absorber cylinder. The guide rod assembly (3) includes three or more guide rods (31). The upper clamping assembly includes a second slider plate (62) movably connected to the guide rods (31) and a first cantilever (63). A second hook (7) is connected to the first cantilever (63).

2. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 1, characterized in that, The three or more guide rods (31) are arranged in a ring array with the center of the first slider plate (4) as the center point.

3. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 1, characterized in that, Each guide rod (31) is movably connected to a first cantilever (63). The second hook (7) on any one of the first cantilever (63) and the second hook (7) on the adjacent first cantilever (63) are used to press against the shock absorber spring. The first cantilever (63) on any two adjacent guide rods (31) among the three or more guide rods (31) form a working group. The first cantilever (63) on the three or more guide rods (31) are combined in pairs to form multiple working groups.

4. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 1, characterized in that, A second lower support ring (56) is detachably connected to the first slider plate (4). The second lower support ring (56) and the corresponding second hook (7) above it are used to compress the damper spring. The second hook (7) switches between a first working position and a second working position. Of the two second hooks (7) above the first lower support plate (5) or the second lower support ring (56), one second hook (7) is located in the first working position and the other second hook (7) is located in the second working position.

5. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 1, characterized in that, The second hook (7) is movably connected to the first cantilever (63) via a height adjustment assembly. The height adjustment assembly includes a height adjustment screw (81) movably connected to the first cantilever (63), a height adjustment nut (82) connected to the height adjustment screw (81), and a limiting sleeve (83) connected to the height adjustment nut (82). The second hook (7) includes a hook portion (71) and an extension post (72) connected to the hook portion (71). The extension post (72) passes through the limiting sleeve (83), and a retaining ring (721) is detachably connected to the extension post (72).

6. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 1, characterized in that, The first slider plate (4) has a first inner hole (41) on one side, and the first lower support plate (5) is connected to a first hole rod (53) corresponding to the first inner hole (41). The first lower support plate (5) is rotatably connected to the first slider plate (4) through the first hole rod (53).

7. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 1, characterized in that, The guide rod assembly (3) also includes an upper top plate (32) and a lower bottom plate (33) connected to the guide rod (31).

8. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 7, characterized in that, The upper clamping assembly further includes a second driving member, which includes a second lead screw (612) movably connected to the second slider plate (62) and a second handwheel (613) connected to the second lead screw (612). The second lead screw (612) passes through the upper top plate (32) and is threadedly connected to the upper top plate (32).

9. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 7, characterized in that, The first driving member (2) includes a frame (1) and a driving element (20), wherein the frame (1) includes a top plate (11).

10. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 9, characterized in that, The driving element (20) includes a piston rod (21) that passes through the top plate (11) of the frame. The first slider plate (4) is connected to the piston rod (21). The driving element (20) is a jack, a cylinder, a hydraulic cylinder, or an electric cylinder.

11. The multi-guide rod automotive shock absorber spring removal and installation tool according to claim 9, characterized in that, The driving element (20) includes a first lead screw (25) and a first handwheel (23) connected to the first lead screw (25). The first lead screw (25) is movably connected to the lower base plate (33) and the upper top plate (32). The first lead screw (25) is provided with a first external thread corresponding to the first slider plate (4) and a second external thread corresponding to the second slider plate (62). When the first lead screw (25) rotates, it drives the first slider plate (4) and the second slider plate (62) to move towards each other or away from each other.

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