Shock absorber assembly

Abstract

The utility model belongs to the technical field of shock absorbers, and particularly relates to a shock absorber assembly which comprises a piston rod set. The bracket is arranged at one end of the piston rod group; the pair of spring plates are arranged on the piston rod set, and a restraining spring is arranged between the pair of spring plates; the dustproof piece is arranged on the piston rod set and located on the top of one spring plate; the top rubber is arranged at one end of the piston rod set and is locked and fixed through a nut, and the problems that after an existing shock absorber is damaged, internal parts of the shock absorber are inconvenient to replace, and the maintenance cost is high are solved.

Description

Technical Field

[0001] This utility model belongs to the field of shock absorber technology, and specifically relates to a shock absorber assembly. Background Technology

[0002] In the electric vehicle industry, in order to quickly dampen the vibration of the frame and body and improve the smoothness and comfort of the ride, the suspension system of electric vehicles is generally equipped with shock absorbers. The working principle of shock absorbers is to suppress the oscillation when the spring absorbs the shock and the impact from the road surface, in order to counteract the torsional vibration of the crankshaft.

[0003] Currently, when shock absorbers are assembled, one end is connected to the electric vehicle body via a top mount, and the other end is connected to the wheel. Because shock absorbers are subjected to the rebound impact after being absorbed by the spring and the impact generated by the shaking of the vehicle body when encountering bumpy roads, the shock absorber as a whole is also a vulnerable component. Moreover, when current shock absorbers are damaged, their internal parts are not easy to replace, resulting in high maintenance costs. Utility Model Content

[0004] In view of the problems mentioned in the background art above, the present invention provides a shock absorber assembly to solve the problem that the internal parts of the current shock absorber are inconvenient to replace and the maintenance cost is high after damage.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A shock absorber assembly, comprising:

[0007] Piston rod assembly;

[0008] A bracket is disposed at one end of the piston rod assembly;

[0009] A pair of spring discs are provided, both of which are mounted on the piston rod assembly, and a restraining spring is provided between the pair of spring discs;

[0010] A dustproof component is disposed on the piston rod assembly and located on top of one of the spring discs;

[0011] Top adhesive, which is set at one end of the piston rod assembly and locked in place by a nut.

[0012] Based on the above technical solution, the present invention has made the following improvements:

[0013] Furthermore, the piston rod assembly includes piston rod one and piston rod two. Piston rod two is disposed at one end of piston rod one and can move within piston rod one. A connecting rod is provided at the end of piston rod two away from piston rod one, and a positioning plane is provided on the connecting rod.

[0014] Furthermore, the bracket is sleeved on the end of the piston rod, and a buckle is provided between the peripheral open sidewalls of the bracket. The buckle and the peripheral open sidewalls of the bracket are provided with corresponding connection holes in terms of position and number.

[0015] Furthermore, the pair of spring discs includes a top spring disc and a bottom spring disc, and a sleeve is provided in the middle of the top spring disc. The top spring disc is sleeved on the piston rod through the sleeve, and the top end of the sleeve abuts against the bottom end of the bracket.

[0016] A retaining sleeve is provided in the middle of the bottom spring plate, and the bottom spring plate is fitted onto the piston rod 2 through the retaining sleeve. The flared openings of the top spring plate and the bottom spring plate are opposite each other, and the inhibiting spring is disposed between the flared openings of the top spring plate and the bottom spring plate.

[0017] Furthermore, the dustproof component includes a dustproof cylinder and a cylinder head fixed at the bottom end of the dustproof cylinder. The cylinder head is sleeved on the piston rod and located at the top of the sleeve. Multiple sealing rings are provided at the joint between the cylinder head and the piston rod. The outer periphery of the cylinder head is provided with a protrusion.

[0018] Furthermore, the top adhesive includes a base plate, on which a plurality of studs are arrayed in an array. A rubber body is disposed in the center of the top surface of the base plate, and a spacer is disposed in the center of the rubber body. A positioning hole is disposed on the top of the spacer, and a flange is disposed on the top of the rubber body. The positioning plane portion of the connecting rod at both ends of the piston rod is engaged in the positioning hole on the spacer, and a nut is threaded into the positioning plane portion of the connecting rod, with the top surface of the nut abutting against the inner top surface of the spacer.

[0019] Furthermore, it also includes a buffer component, which includes a pad, a rubber pad, a flanged wheel, and a folding sleeve. The pad, rubber pad, and flanged wheel are sequentially fitted onto the piston rod from bottom to top. The top of the folding sleeve is flared, and the bottom of the folding sleeve is a bent portion. The bent portion of the folding sleeve is placed on the top surface of the pad and fits around the rubber pad and flanged wheel.

[0020] The beneficial effects of this utility model are:

[0021] 1. The shock absorber assembly is formed by the orderly combination of the piston rod assembly, bracket, a pair of spring discs, the damping spring, the dust cover, the top rubber, and the nut. When a component in the shock absorber assembly is damaged and needs to be replaced, the nut can be unscrewed from one end of the piston rod assembly to release the locking and fixing of each component in the shock absorber assembly. At this time, the top rubber, the pair of spring discs, the dust cover, and the damping spring can be removed from the piston rod assembly in sequence, so that the damaged part in the shock absorber assembly can be replaced. This avoids the entire shock absorber assembly being scrapped due to the damage of a single part, thus reducing maintenance costs.

[0022] 2. By installing dustproof components, which cover the outer periphery of piston rod two and the joint between piston rod one and piston rod two, dust can be prevented from entering the piston rod assembly.

[0023] 3. The buffer component is set between the top rubber and the bottom spring plate, which can prevent the bottom spring plate from directly contacting the top rubber. Therefore, it can buffer part of the impact force applied by the bottom spring plate to the top rubber and play a certain role in protecting the top rubber. Attached Figure Description

[0024] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0025] Figure 1 This is a structural diagram of the piston rod assembly in a shock absorber assembly according to this utility model;

[0026] Figure 2 This is a structural diagram of a bracket in a shock absorber assembly according to the present invention;

[0027] Figure 3 This utility model relates to the structure of a spring disc in a shock absorber assembly. Figure 1 ;

[0028] Figure 4 This utility model relates to the structure of a spring disc in a shock absorber assembly. Figure 2 ;

[0029] Figure 5 This is a structural diagram of the top rubber in a shock absorber assembly according to this utility model;

[0030] Figure 6 This is a cross-sectional view of the top rubber in a shock absorber assembly according to this utility model;

[0031] Figure 7 This is a structural diagram of a shock absorber assembly according to the present invention;

[0032] Figure 8 This is a cross-sectional view of a shock absorber assembly according to the present invention.

[0033] The attached diagram is labeled as follows:

[0034] 101. Piston rod one; 102. Piston rod two; 103. Connecting rod; 104. Positioning plane; 201. Bracket; 202. Buckle; 203. Connecting hole; 301. Base plate; 302. Stud; 303. Rubber body; 305. Spacer; 306. Positioning hole; 307. Flange plate; 401. Washer plate; 402. Rubber washer plate; 403. Flange wheel plate; 404. Folding sleeve plate; 405. Bend section; 501. Sleeve; 502. Top spring plate; 504. Sleeve; 505. Bottom spring plate; 601. Dustproof sleeve; 602. Sleeve head; 603. Sealing ring; 7. Restriction spring; 8. Nut. Detailed Implementation

[0035] Example 1:

[0036] like Figures 1 to 8 As shown, a shock absorber assembly includes:

[0037] The piston rod assembly includes a first piston rod 101 and a second piston rod 102. The second piston rod 102 is disposed at one end of the first piston rod 101 and can move within the first piston rod 101. Other components are also provided inside the joint between the first piston rod 101 and the second piston rod 102. The structure of the other components inside the joint between the first piston rod 101 and the second piston rod 102 is similar to the structure disclosed in the electric vehicle shock absorber assembly with announcement number CN106704443B, so it will not be described in detail here.

[0038] The bracket 201 is sleeved on the end of the piston rod 101. A buckle 202 is provided between the peripheral opening sidewalls of the bracket 201. The buckle 202 and the peripheral opening sidewalls of the bracket 201 are provided with corresponding connection holes 203. During assembly, the bracket 201 is sleeved on the end of the piston rod 101, and then the buckle 202 is snapped into the peripheral opening of the bracket 201. Then, the bolts are simultaneously inserted into the connection holes 203 on the buckle 202 and the bracket 201, so that the buckle 202 can be assembled on the bracket 201 and the bracket 201 can be firmly clamped on the end of the piston rod 101. The bracket 201 can be used to connect and assemble one end of the piston rod 101 to the corresponding part of the electric vehicle wheel frame.

[0039] See Figure 3 , Figure 4 , Figure 7 and Figure 8 A pair of spring discs are provided, both mounted on the piston rod assembly. A retaining spring 7 is provided between the pair of spring discs. The pair of spring discs includes a top spring disc 502 and a bottom spring disc 505. A sleeve 501 is provided in the middle of the top spring disc 502, and the top spring disc 502 is sleeved on the piston rod 101 through the sleeve 501, with the top end of the sleeve 501 abutting against the bottom end of the bracket 201. A retaining sleeve 504 is provided in the middle of the bottom spring disc 505, and the bottom spring disc 505 is sleeved on the piston rod 101 through the retaining sleeve 504. On piston rod 102, the flared openings of top spring plate 502 and bottom spring plate 505 face each other, and the suppressing spring 7 is disposed between the flared openings of top spring plate 502 and bottom spring plate 505. This allows the top spring plate 502, bottom spring plate 505, and suppressing spring 7 to be disposed around piston rod 101 and piston rod 102. The suppressing spring 7 can buffer vibrations and impacts from the road surface. The top spring plate 502 and bottom spring plate 505 can limit and stabilize the two ends of the suppressing spring 7.

[0040] See Figure 1 and Figure 8 The dustproof component is installed on the piston rod assembly and located on the top of one of the spring discs. The dustproof component includes a dustproof cylinder 601 and a cylinder head 602 fixed at the bottom end of the dustproof cylinder 601. The cylinder head 602 is sleeved on the piston rod 102 and located on the top of the sleeve 504. The dustproof cylinder 601 covers the periphery of the piston rod 102 and the joint between the piston rod 101 and the piston rod 102, which can prevent dust from entering the piston rod 102 and sticking to the piston rod 102, and promote the dust to be carried into the piston rod 101 when the piston rod 102 moves into the piston rod 101.

[0041] Multiple sealing rings 603 are provided at the joint between the cylinder head 602 and the piston rod 102. The multiple sealing rings 603 can be filled with sealing grease to seal the joint between the cylinder head 602 and the piston rod 102. The outer periphery of the cylinder head 602 is provided with a protrusion, and the largest diameter part of the protrusion abuts against the inner wall of the sleeve 504, which can radially limit the cylinder head 602 and prevent the cylinder head 602 from moving radially.

[0042] See Figures 4 to 8 The top adhesive is located at one end of the piston rod assembly and is secured by a nut 8. The top adhesive includes a base plate 301, on which multiple studs 302 are arrayed. These studs 302 allow the base plate 301 to be assembled onto the corresponding body of the electric vehicle. A rubber body 303 is located in the center of the top surface of the base plate 301, serving a cushioning function. A spacer 305 is located in the center of the rubber body 303, enhancing the strength at its center. A positioning hole 306 is located at the top of the spacer 305. A connecting rod 103 is located at the end of the piston rod 102 furthest from the piston rod 101. A positioning plane 104 is provided on the connecting rod 103. The positioning plane 104 of the connecting rod 103 at the end of the piston rod 2 102 is engaged in the positioning hole 306 on the spacer 305. A nut 8 is screwed into the end of the positioning plane 104 of the connecting rod 103. The top surface of the nut 8 abuts against the inner top surface of the spacer 305, thereby finally locking the top rubber to the end of the piston rod 2 102 using the nut 8. A flange plate 307 is provided on the top of the rubber body 303. After the top rubber is locked to the end of the piston rod 2 102, the top surface of the flange plate 307 is tightly fitted with the bottom surface of the bottom spring plate 505, thereby finally assembling a complete shock absorber assembly.

[0043] Example 2:

[0044] See Figure 5 , Figure 6 and Figure 8Compared with Embodiment 1, Embodiment 2's technical solution, based on Embodiment 1, further includes a buffer component. The buffer component includes a pad 401, a rubber pad 402, a flange wheel 403, and a folding sleeve 404. The pad 401, rubber pad 402, and flange wheel 403 are sequentially sleeved on the piston rod 102 from bottom to top, with the pad 401 located inside the flange wheel 307. The pad 401 serves as the basic component in the buffer component. The rubber pad 402 is positioned between the pad 401 and the flange wheel 403, preventing damage to the pad 401 when the flange wheel 403 is subjected to rebound impact. When assembling the shock absorber assembly, the top of the flange wheel 403 directly contacts a portion of the top surface of the bottom spring plate 505. The flange wheel 403 is made of hard metal material to separate the bottom spring plate 505 from the rubber pad 402, preventing damage to the rubber pad 402.

[0045] The top of the folding sleeve 404 is flared, and the bottom of the folding sleeve 404 is a bent portion 405. The bent portion 405 of the folding sleeve 404 is placed on the top surface of the pad 401 and is fitted around the rubber pad 402 and the flange wheel 403. When assembled into a shock absorber assembly, the bottom of the damping spring 7 in the shock absorber assembly will rebound and abut against the bottom spring plate 505. The bottom spring plate 505 rests on the folding sleeve 404, so that the folding sleeve 404 will be subjected to rebound pressure. Due to the setting of the bent portion 405 of the folding sleeve 404, the bent portion 405 has a certain anti-impact effect, so the bent portion 405 can buffer the impact of the bottom spring plate 505 on the pad 401 and the rubber body 303, thus ensuring that the rubber body 303 is not easily damaged by impact.

[0046] When a component in the shock absorber assembly is damaged and needs to be replaced, the nut 8 can be unscrewed from the connecting rod 103 at the end of the piston rod 102 to release the locking and fixing of the components in the shock absorber assembly. At this time, the top rubber, buffer, bottom spring plate 505, dustproof component, and damping spring 7 can be removed from the piston rod 101 and piston rod 102 in sequence, so that the damaged part in the shock absorber assembly can be replaced. This avoids the entire shock absorber assembly being scrapped due to the damage of a single part and reduces maintenance costs.

[0047] The present invention has been described in detail above. The specific embodiments are provided only to help understand the method and core idea of ​​the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A shock absorber assembly, characterized in that: include: Piston rod assembly; A bracket (201) is provided at one end of the piston rod assembly; A pair of spring discs are provided, both of which are mounted on the piston rod assembly, and a restraining spring (7) is provided between the pair of spring discs; A dustproof component is disposed on the piston rod assembly and located on top of one of the spring discs; Top adhesive, which is set at one end of the piston rod assembly and locked in place by a nut (8).

2. The shock absorber assembly according to claim 1, characterized in that: The piston rod assembly includes a first piston rod (101) and a second piston rod (102). The second piston rod (102) is disposed at one end of the first piston rod (101) and can move within the first piston rod (101). A connecting rod (103) is provided at the end of the second piston rod (102) away from the first piston rod (101), and a positioning plane (104) is provided on the connecting rod (103).

3. A shock absorber assembly according to claim 2, characterized in that: The bracket (201) is sleeved on the end of the piston rod (101). A buckle (202) is provided between the peripheral open sidewalls of the bracket (201). The buckle (202) and the peripheral open sidewalls of the bracket (201) are provided with corresponding connecting holes (203) in terms of position and number.

4. A shock absorber assembly according to claim 2, characterized in that: The pair of spring discs includes a top spring disc (502) and a bottom spring disc (505). A sleeve (501) is provided in the middle of the top spring disc (502). The top spring disc (502) is sleeved on the piston rod (101) through the sleeve (501), and the top end of the sleeve (501) abuts against the bottom end of the bracket (201). A retainer (504) is provided in the middle of the bottom spring plate (505). The bottom spring plate (505) is sleeved on the piston rod (102) through the retainer (504). The top spring plate (502) and the bottom spring plate (505) are opposite to each other. The suppressing spring (7) is disposed between the flared opening of the top spring plate (502) and the flared opening of the bottom spring plate (505).

5. A shock absorber assembly according to claim 4, characterized in that: The dustproof component includes a dustproof cylinder (601) and a cylinder head (602) fixed at the bottom end of the dustproof cylinder (601). The cylinder head (602) is sleeved on the piston rod (102) and located at the top of the sleeve (504). Multiple sealing rings (603) are provided at the joint between the cylinder head (602) and the piston rod (102). The outer periphery of the cylinder head (602) is provided with a protrusion.

6. A shock absorber assembly according to claim 2, characterized in that: The top adhesive includes a base plate (301), on which a plurality of studs (302) are arranged in an array. A rubber body (303) is provided in the middle of the top surface of the base plate (301), and a spacer (305) is provided in the middle of the rubber body (303). A positioning hole (306) is provided on the top of the spacer (305), and a flange plate (307) is provided on the top of the rubber body (303). The positioning plane (104) of the connecting rod (103) at the end of the piston rod (102) is engaged in the positioning hole (306) on the spacer (305), and a nut (8) is threaded into the end of the positioning plane (104) of the connecting rod (103), with the top surface of the nut (8) abutting against the inner top surface of the spacer (305).

7. A shock absorber assembly according to claim 6, characterized in that: It also includes a buffer component, which includes a pad (401), a rubber pad (402), a flange wheel (403), and a folding sleeve (404). The pad (401), the rubber pad (402), and the flange wheel (403) are sequentially sleeved on the piston rod (102) from bottom to top. The top of the folding sleeve (404) is flared, and the bottom of the folding sleeve (404) is a bent portion (405). The bent portion (405) of the folding sleeve (404) is placed on the top surface of the pad (401) and sleeved around the rubber pad (402) and the flange wheel (403).

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