Threaded piston sub-assembly shock absorber

Abstract

The utility model discloses a shock absorber with a threaded piston subassembly, which relates to the technical field of shock absorbers and comprises a main piston rod, an auxiliary piston rod is arranged above the main piston rod, a screw is fixed at the top of the auxiliary piston rod, a first annular plate is fixed on the outer wall of one end, close to the auxiliary piston rod, of the main piston rod, and a reinforcing rib is inserted into a reinforcing groove. The two connecting mechanisms are arranged on the outer wall between the main plug rod and the auxiliary plug rod in a sleeving mode and arranged on the first annular plate and the second annular plate on the outer wall in a sleeving mode, and the two connecting mechanisms can be in threaded connection with nuts after bolts penetrate through the connecting lugs. Therefore, the two connecting mechanisms are matched with the first annular plate and the second annular plate to connect the main plug rod and the auxiliary plug rod together, when the screw rod deforms and breaks, the bolt and the nut are detached, the connecting mechanisms are stripped from the outer walls of the main plug rod and the auxiliary plug rod, and the reinforcing ribs are pulled out of the reinforcing grooves, so that the detaching work can be completed, the operation is simple and convenient, and the practicability is high. And a certain cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a shock absorber with a threaded piston sub-assembly. Background Art

[0002] The threaded piston rod subassembly means that the piston rod contains a threaded rod. Usually, the screw rod may be used to fix, adjust or connect the piston rod with other components. For example, it is used to adjust the length or angle of the piston rod to adapt to different suspension systems or driving conditions. In some designs, the screw rod may also play a locking or positioning role to ensure that the piston rod remains stable during operation.

[0003] When the shock absorber is subjected to an impact force or load that exceeds its design tolerance, the screw may break due to excessive stress. This usually happens when the vehicle is traveling on a rough road or encounters a strong impact.

[0004] Long-term use and frequent vibrations can cause fatigue in the screw, especially in areas where stress is concentrated, which may cause the screw to break.

[0005] In the process of implementing the solution, the inventors found that the following problems existed in the prior art and have not been well solved: since the screw rod and the piston rod are integrated, when the threaded rod breaks, the threaded rod and the piston rod need to be replaced. During the replacement, the piston rod needs to be taken out of the piston cylinder and the hydraulic oil needs to be poured in. The overall replacement steps are complicated and cumbersome, and the replacement cost is also high. Utility Model Content

[0006] The main purpose of the utility model is to provide a shock absorber with a threaded piston sub-assembly, which can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The shock absorber with threaded piston sub-assembly comprises a main piston rod, a sub-piston rod is arranged above the main piston rod, a screw is fixed on the top of the sub-piston rod, a ring plate 1 is fixed on the outer wall of the main piston rod near one end of the sub-piston rod, a ring plate 2 is fixed on the outer wall of the sub-piston rod near one end of the main piston rod, a reinforcement groove is drilled on the top of the main piston rod, a reinforcement rib is fixed on the bottom of the sub-piston rod, a connecting mechanism is arranged on the front and rear outer walls between the main piston rod and the sub-piston rod, two connecting ears are fixed on both ends of the connecting mechanism, bolts are inserted through the two connecting ears in a transverse direction, nuts are threadedly connected to the outer walls after the bolts pass through the two connecting ears, top ears are fixed on both ends of the top of the connecting mechanism, screw holes are drilled through the top ears, screws are inserted through the inside of the screw holes, screw holes are drilled on the sub-piston rod at the position of the screw, screw holes are drilled on the main piston rod at the position of the screw, and arc-shaped hoops are drilled on the inner walls of the connecting mechanism at the positions of the first and second ring plates.

[0009] Preferably, the connection mechanism is respectively sleeved on the outer wall of the ring plate 1 and the ring plate 2 through an arc-shaped sleeve, and the outer diameter dimensions of the ring plate 1 and the ring plate 2 respectively match the inner diameter dimensions formed between the arc-shaped sleeves of the two connection mechanisms.

[0010] Preferably, one end of the screw passes through the screw hole and is respectively inserted into the screw hole 1 and the screw hole 2 which are matched in position, and the screw is threadedly connected to the screw hole 1 and the screw hole 2 respectively.

[0011] Preferably, the inner height dimension of the arc-shaped hoop matches the thickness dimensions of the ring plate 1 and the reinforcement groove respectively.

[0012] Preferably, the reinforcing rib is inserted into the interior of the reinforcing groove, and the outer diameter of the reinforcing rib matches the inner diameter of the reinforcing groove.

[0013] Preferably, a plurality of keys are fixed at equal intervals on the outer wall of the reinforcing rib, key slots are cut at the positions of the keys on the main plug rod, the inner dimensions of the key slots match the outer dimensions of the keys, and the keys are inserted into the inside of the key slots.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The reinforcing rib is inserted into the reinforcing groove, and the two connecting mechanisms are respectively sleeved on the outer wall between the main plug rod and the auxiliary plug rod, and are sleeved on the ring plate 1 and the ring plate 2 on the outer wall. The two connecting mechanisms can be threadedly connected with the nut after the bolt passes through the connecting ear, so that the two connecting mechanisms cooperate with the ring plate 1 and the ring plate 2 to connect the main plug rod and the auxiliary plug rod together. Then, when the screw is deformed or broken, the bolt and the nut are removed, the connecting mechanism is peeled off from the outer wall of the main plug rod and the auxiliary plug rod, and the reinforcing rib is pulled out from the reinforcing groove, so that the disassembly work can be completed. The operation is simple and convenient, and a certain cost is saved.

[0016] 2. The top ears at the top and bottom of the connecting mechanism can be threadedly connected with the screw holes 1 and 2 at matching positions after the screws are passed through the screw holes, so that the two connecting mechanisms can be fixedly connected with the main plug rod and the auxiliary plug rod respectively, thereby making the connection between the main plug rod, the auxiliary plug rod and the connecting mechanism more compact after installation. At the same time, when disassembling, only more screws need to be removed, which does not increase the difficulty of disassembly and strengthens the stability of the connection between the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the shock absorber with threaded piston sub-assembly of the utility model;

[0018] Figure 2 It is a schematic diagram of the partial disassembly structure of the shock absorber with threaded piston sub-assembly of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model when the reinforcing rib of the shock absorber with threaded piston sub-assembly is pulled out from the reinforcing groove;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of point A of the shock absorber with threaded piston sub-assembly of the utility model.

[0021] In the figure: 1. main plug rod; 11. ring plate 1; 12. reinforcement groove; 13. keyway; 14. screw hole 1; 2. auxiliary plug rod; 21. ring plate 2; 22. screw hole 2; 23. reinforcement rib; 24. key; 3. screw rod; 4. connecting mechanism; 41. arc-shaped hoop; 42. connecting ear; 43. bolt; 44. nut; 45. top ear; 46. screw hole; 47. screw. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-4As shown, the shock absorber with threaded piston subassembly includes a main piston rod 1, a sub-piston rod 2 is arranged above the main piston rod 1, a screw rod 3 is fixed to the top of the sub-piston rod 2, a ring plate 11 is fixed to the outer wall of the main piston rod 1 near the end of the sub-piston rod 2, a ring plate 21 is fixed to the outer wall of the sub-piston rod 2 near the end of the main piston rod 1, a reinforcement groove 12 is cut on the top of the main piston rod 1, a reinforcement rib 23 is fixed to the bottom of the sub-piston rod 2, and a connecting mechanism 4 is arranged on the front and rear outer walls between the main piston rod 1 and the sub-piston rod 2, and two connecting ears 42 are fixed at both ends of the connecting mechanism 4, and two transversely parallel connecting ears 42 are fixed to the two connecting ears 42. Bolts 43 are inserted through the connecting ears 42, and nuts 44 are threadedly connected to the outer walls of the bolts 43 after passing through the two connecting ears 42. Top ears 45 are fixed at both ends of the top of the connecting mechanism 4, and screw holes 46 are drilled through the top ears 45. Screws 47 are inserted through the screw holes 46. The auxiliary plug rod 2 is drilled with a screw hole 22 at the position of the screw 47, and the main plug rod 1 is drilled with a screw hole 14 at the position of the screw 47. Arc-shaped hoop 41 is drilled on the inner wall of the connecting mechanism 4 at the position of ring plate 11 and ring plate 21.

[0024] Specifically, the connecting mechanism 4 is respectively sleeved on the outer wall of the ring plate 11 and the ring plate 21 through the arc-shaped hoop 41, and the outer diameter dimensions of the ring plate 11 and the ring plate 21 respectively match the inner diameter dimensions formed between the arc-shaped hoop 41 of the two connecting mechanisms 4, and one end of the screw 47 passes through the screw hole 46 and is respectively inserted into the screw hole 14 and the screw hole 22 of matching position, and the screw 47 is respectively threadedly connected with the screw hole 14 and the screw hole 22, so that the connection between the main plug rod 1, the auxiliary plug rod 2 and the connecting mechanism 4 is more stable.

[0025] Specifically, the inner height dimension of the arc-shaped hoop 41 matches the thickness dimension of the ring plate 11 and the reinforcing groove 12 respectively, so as to avoid shaking due to the size difference.

[0026] Specifically, the reinforcing rib 23 is inserted into the reinforcing groove 12 , and the outer diameter of the reinforcing rib 23 matches the inner diameter of the reinforcing groove 12 , thereby reinforcing the connection strength between the main plug rod 1 and the auxiliary plug rod 2 .

[0027] Specifically, a plurality of keys 24 are fixed at equal intervals on the outer wall of the reinforcing rib 23, and key slots 13 are cut at the positions of the keys 24 on the main plug rod 1. The inner dimensions of the key slots 13 match the outer dimensions of the keys 24, and the keys 24 are inserted into the key slots 13, respectively, so that the connection between the main plug rod 1 and the auxiliary plug rod 2 is more compact.

[0028] Working principle: the reinforcing rib 23 is inserted into the reinforcing groove 12, and the two connecting mechanisms 4 are respectively sleeved on the outer wall between the main plug rod 1 and the auxiliary plug rod 2, and are sleeved with the ring plate 1 11 and the ring plate 21 of the outer wall, and the two connecting mechanisms 4 can be threadedly connected with the nut 44 after the bolt 43 passes through the connecting ear 42, so that the two connecting mechanisms 4 cooperate with the ring plate 1 11 and the ring plate 21 to connect the main plug rod 1 and the auxiliary plug rod 2 together, so that when the screw rod 3 is deformed or broken, the bolt 43 and the nut 44 are disassembled, the connecting mechanism 4 is peeled off from the outer wall of the main plug rod 1 and the auxiliary plug rod 2, and the reinforcing rib 23 is removed from the outer wall of the main plug rod 1 and the auxiliary plug rod 2. The disassembly work can be completed by pulling it out from the reinforcement groove 12. The operation is simple and convenient, and a certain cost is saved. The top ears 45 at the top and bottom of the connecting mechanism 4 can be threadedly connected with the screw hole 14 and the screw hole 22 at the matching position after the screw 47 passes through the screw hole 46, so that the two connecting mechanisms 4 can be fixedly connected with the main plug rod 1 and the auxiliary plug rod 2 respectively, thereby making the connection between the main plug rod 1, the auxiliary plug rod 2 and the connecting mechanism 4 more compact after installation. At the same time, when disassembling, it is only necessary to remove the screws 47, which does not increase the difficulty of disassembly and strengthens the stability of the connection between the components.

[0029] The circuits, electronic components and control modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the utility model does not involve improvements to software and methods.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A shock absorber with a threaded piston sub-assembly, comprising a main piston rod (1), characterized in that: A secondary plug rod (2) is provided above the main plug rod (1), a screw rod (3) is fixed to the top of the secondary plug rod (2), a ring plate 1 (11) is fixed to the outer wall of the main plug rod (1) close to one end of the secondary plug rod (2), a ring plate 2 (21) is fixed to the outer wall of the secondary plug rod (2) close to one end of the main plug rod (1), a reinforcement groove (12) is cut at the top of the main plug rod (1), a reinforcement rib (23) is fixed to the bottom of the secondary plug rod (2), and a connecting mechanism (4) is provided on the front and rear outer walls between the main plug rod (1) and the secondary plug rod (2), and two connecting ears (42) are fixed at both ends of the connecting mechanism (4), and a connecting groove (42) is provided between the two transversely parallel connecting ears (42). Bolts (43) are inserted therethrough, and the outer walls of the bolts (43) after passing through the two connecting ears (42) are threadedly connected with nuts (44), top ears (45) are fixed at both ends of the top of the connecting mechanism (4), screw holes (46) are drilled through the top ears (45), and screws (47) are inserted through the inside of the screw holes (46), the auxiliary plug rod (2) is drilled with a second screw hole (22) at the position of the screw (47), the main plug rod (1) is drilled with a first screw hole (14) at the position of the screw (47), and the inner walls of the connecting mechanism (4) at the positions of the ring plate 1 (11) and the ring plate 2 (21) are drilled with arc-shaped hoops (41).

2. The shock absorber with threaded piston sub-assembly according to claim 1, characterized in that: The connection mechanism (4) is sleeved on the outer wall of the first ring plate (11) and the second ring plate (21) through an arc-shaped sleeve (41), and the outer diameters of the first ring plate (11) and the second ring plate (21) respectively match the inner diameters formed between the arc-shaped sleeves (41) of the two connection mechanisms (4).

3. The shock absorber with threaded piston sub-assembly according to claim 1, characterized in that: One end of the screw (47) passes through the screw hole (46) and is inserted into the inside of the first screw hole (14) and the second screw hole (22) respectively at matching positions, and the screw (47) is threadedly connected to the first screw hole (14) and the second screw hole (22) respectively.

4. The shock absorber with threaded piston sub-assembly according to claim 1, characterized in that: The inner height dimension of the arc-shaped hoop (41) matches the thickness dimension of the ring plate 1 (11) and the reinforcement groove (12) respectively.

5. The shock absorber with threaded piston sub-assembly according to claim 1, characterized in that: The reinforcing rib (23) is inserted into the interior of the reinforcing groove (12), and the outer diameter of the reinforcing rib (23) matches the inner diameter of the reinforcing groove (12).

6. The shock absorber with threaded piston sub-assembly according to claim 1, characterized in that: A plurality of keys (24) are fixed at equal intervals on the outer wall of the reinforcing rib (23); keyways (13) are cut on the main plug rod (1) at the positions of the keys (24); the inner dimensions of the keyways (13) match the outer dimensions of the keys (24), and the keys (24) are inserted into the inside of the keyways (13).

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