Split type valve seat of shock absorber

Abstract

The utility model provides a split type valve seat of a shock absorber, and belongs to the technical field of automobile shock absorbers. The valve seat body is arranged between the inner cylinder and the outer cylinder which are sleeved with each other, the valve seat body is arranged in the barrel shape, the center hole is formed in the barrel bottom of the valve seat body, and the flow channels communicated with the center hole are formed in the barrel bottom of the valve seat body and the outer side wall of the barrel wall of the valve seat body, so that communication of the inner cylinder and the outer cylinder is achieved; the valve assembly is installed in the valve seat body, the first through hole and the second through hole are formed in the valve body of the valve assembly, and the first valve plate and the second valve plate are installed at the two ends of the valve body through the connecting rod and correspond to the first through hole and the second through hole respectively, so that the valve assembly can achieve one-way connection in two directions, and the damping use requirement is met. And moreover, the valve assembly is detachably mounted in the valve seat body, so that the valve assembly can be independently taken out for maintenance under the condition that the valve seat body, the inner cylinder and the outer cylinder are not disassembled, overall disassembly, assembly and replacement are not needed, maintenance is more convenient, and the use cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile shock absorber, concretely relates to a split type valve seat of shock absorber. BACKGROUND

[0002] At present, the existing automobile shock absorber on the market usually includes a shock cylinder body with an inner cylinder and an outer cylinder, is connected through a guide structure and a bottom valve assembly at both ends of the shock cylinder body, and a piston is arranged in the inner cylinder and slides, a piston rod is connected to the piston, one end of the piston rod extends out through the guide structure, the shock cylinder body is filled with shock oil, the shock oil acts on the piston, and the shock oil circulates in the bottom valve assembly to realize shock absorption.

[0003] At present, the bottom valve assembly of the existing automobile shock absorber on the market, such as the bottom valve seat for automobile shock absorber disclosed in patent CN222122105U, sets the oil storage cylinder on the outer side of the working cylinder, the valve seat body of the bottom valve seat has a plurality of first flow-through holes and a plurality of second flow-through holes, the second flow-through holes are arranged on the outer side of the first flow-through holes, one end of the valve seat body extends into the first oil cavity and abuts against the cylinder body of the working cylinder, the valve seat body closes the one end hole of the working cylinder, the other end of the valve seat body abuts against the bottom cover set on one end of the oil storage cylinder. At the same time, a first valve plate is installed on one end of the valve seat body close to the bottom cover and closes the first flow-through hole, and the first valve plate does not close the second flow-through hole, a second valve plate is arranged on the other end of the valve seat body away from the bottom cover and closes the second flow-through hole, and the second valve plate does not close the first flow-through hole, so that the first valve plate and the second valve plate respectively close the first flow-through hole and the second flow-through hole from both ends of the valve seat body, forming two one-way valves in opposite directions on the valve seat body, so that when the shock oil flows from the first oil cavity to the second oil cavity under the action of the piston rod, the first valve plate opens the first flow-through hole, and when the shock oil flows from the second oil cavity to the first oil cavity, the second valve plate opens the second flow-through hole. In addition, in order to ensure the sealing effect, the valve seat body and the working cylinder are installed in extrusion, and the two are interference fit, and the bottom cover and the oil storage cylinder are connected by welding, therefore, the valve seat body cannot be disassembled in the later stage. And, since the first valve plate and the second valve plate need to be deformed and bent frequently, there is a problem of fatigue damage after long-term use, there is a risk of loose sealing and breakage, and the valve seat body that cannot be disassembled cannot be replaced after the first valve plate and the second valve plate are damaged, and only the overall structure composed of the working cylinder, the oil storage cylinder, the valve seat and the bottom cover can be replaced, which is inconvenient to maintain and has high use cost. SUMMARY

[0004] In view of the above problems existing in the prior art, the present application provides a split type valve seat of a shock absorber, which comprises a valve seat body and a valve assembly. The valve seat body is arranged in a barrel shape. An outer cylinder and an inner cylinder are respectively sleeved on the outer side and the inner side of the valve seat body. The valve assembly is detachably installed in the barrel of the valve seat body. The valve seat body is used to connect and fix the inner cylinder and the outer cylinder. The valve assembly controls the one-way conduction of the circuit, so that when the valve piece of the valve assembly is damaged, the valve assembly can be directly removed and replaced, without the need to replace the entire structure of the inner cylinder, the outer cylinder and the like, thereby facilitating maintenance and reducing the use cost.

[0005] The specific technical solutions are as follows:

[0006] A split type valve seat of a shock absorber is arranged between an inner cylinder and an outer cylinder. The outer cylinder and the inner cylinder are coaxially sleeved and have a space therebetween. The valve seat comprises a valve seat body and a valve assembly, and has the following characteristics.

[0007] The valve seat body is arranged in a barrel shape. A through center hole is formed in the center of the barrel bottom of the valve seat body. A plurality of flow channels are formed on the outer side wall of the barrel bottom and the barrel wall of the valve seat body. Each flow channel is in communication with the center hole. The valve seat body is arranged in the outer cylinder and the barrel bottom and the barrel wall abut against the inner wall of the outer cylinder. One end of the inner cylinder is inserted into the barrel cavity of the valve seat body.

[0008] The valve assembly comprises a valve body, a first valve piece, a second valve piece and a connecting rod. The valve body is arranged in a barrel shape and the barrel opening is arranged towards the barrel bottom of the valve seat body. A fixing hole is formed in the center of the barrel bottom of the valve body. A first through hole and a second through hole are also formed on the barrel bottom of the valve body. The first valve piece and the second valve piece are respectively installed on the outer side and the inner side of the barrel bottom of the valve body. The first valve piece covers the first through hole but does not cover the second through hole. The second valve piece covers the second through hole but does not cover the first through hole. The connecting rod is arranged in the fixing hole and is fixedly connected with the first valve piece and the second valve piece at both ends.

[0009] The split type valve seat of the shock absorber has the following characteristics. The outer cylinder is arranged in a barrel shape. The barrel bottom of the outer cylinder is arranged in an outward protruding arc shape. The outer edge of one end of the barrel bottom of the valve seat body abuts against the inner wall of the barrel bottom of the outer cylinder.

[0010] The split type valve seat of the shock absorber has the following characteristics. A recess cavity in communication with the center hole is formed on the outer wall of the barrel bottom of the valve seat body. Each flow channel is in communication with the recess cavity.

[0011] The split type valve seat of the shock absorber has the following characteristics. A transition groove is arranged in each flow channel and between the barrel bottom and the barrel wall of the valve seat body.

[0012] The split type valve seat of the shock absorber has the following characteristics. A ring-shaped notch is formed on the outer edge of one end of the barrel opening of the valve seat body. The ring-shaped notch is in communication with each flow channel.

[0013] The split valve seat of the shock absorber, wherein a ring of convex rings is arranged on the barrel bottom of the valve seat body and outside the central hole.

[0014] The split valve seat of the shock absorber, wherein a plurality of first guide holes are arranged in a ring array with the hole axis of the fixed hole as the center, and a plurality of second guide holes are arranged in a ring array with the hole axis of the fixed hole as the center, and the plurality of second guide holes are arranged outside the first guide holes.

[0015] The split valve seat of the shock absorber, wherein the first valve piece and the second valve piece are both circular pieces, and the second valve piece is provided with an avoiding hole corresponding to the first guide hole.

[0016] The split valve seat of the shock absorber, wherein the two ends of the connecting rod are arranged with first annular clamping grooves with first clamping springs, the first valve piece and the second valve piece are both provided with mounting holes corresponding to the connecting rod, and the two ends of the connecting rod are respectively inserted into the mounting holes of the first valve piece and the second valve piece and are pressed by the first clamping springs at the corresponding ends.

[0017] The split valve seat of the shock absorber, wherein the outer side wall of the valve body is provided with a rubber coating, the outer side wall of the valve body is provided with a plurality of limiting grooves arranged at intervals, the rubber coating is injection molded on the outer side wall of the valve body provided with the limiting grooves, and the inner wall of the one end of the valve seat body connected with the inner cylinder is provided with a second annular clamping groove, the second annular clamping groove is provided with a second clamping spring, and the second clamping spring presses the valve seat body.

[0018] The positive effect of the above technical solution is:

[0019] The split valve seat of the shock absorber, wherein the valve assembly is disassembled and mounted in the valve seat body, the valve seat body is arranged in a barrel shape, and the outer side and the inner side are respectively connected with the outer cylinder and the inner cylinder, the valve seat body is provided with a flow channel to connect the space between the outer cylinder and the inner cylinder, the valve assembly includes a valve body and first and second valve pieces arranged on the valve body, the first valve piece opens or closes the first guide hole on the valve body, and the second valve piece opens or closes the second guide hole on the valve body, so that the valve assembly can realize stage-wise one-way conduction, meet the use requirements of shock absorption, and the valve assembly can be taken out and repaired without disassembling the valve seat body, the inner cylinder and the outer cylinder, without the need for overall disassembly and replacement, so that the maintenance is more convenient and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The structure diagram of the embodiment of the split valve seat of the shock absorber of the utility model;

[0021] Figure 2This is a cross-sectional view of an embodiment of a split valve seat for a shock absorber according to the present invention;

[0022] Figure 3 This is a structural view of the valve seat body of a split valve seat of a shock absorber according to the present invention.

[0023] Figure 4 This is a structural diagram of the valve seat body of a split valve seat of a shock absorber according to this utility model, taken from another perspective.

[0024] In the attached diagram: 1. Inner cylinder; 11. Second annular groove; 12. Second snap ring; 2. Outer cylinder; 3. Valve seat body; 31. Center hole; 32. Flow channel; 33. Cavity; 34. Transition groove; 35. Annular notch; 36. Protruding ring; 4. Valve assembly; 41. Valve body; 42. First valve plate; 43. Second valve plate; 44. Connecting rod; 411. Fixing hole; 412. First through hole; 413. Second through hole; 414. Rubber coating; 415. Limiting groove; 421. Mounting hole; 431. Clearance hole; 441. First annular groove; 442. First snap ring. Detailed Implementation

[0025] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0026] Figure 1 This is a structural diagram of an embodiment of a split valve seat for a shock absorber according to the present invention; Figure 2 This is a cross-sectional view of an embodiment of a split-type valve seat for a shock absorber according to this utility model. Figure 1 and Figure 2 As shown, the split valve seat of the shock absorber provided in this embodiment is disposed between the inner cylinder 1 and the outer cylinder 2. At this time, a gap is provided between the inner wall of the outer cylinder 2 and the outer wall of the inner cylinder 1 to form an oil storage chamber. Furthermore, the connection between the inner cylinder 1 and the outer cylinder 2 is realized through the split valve seat. In addition, the split valve seat of the shock absorber provided in this embodiment also includes: a valve seat body 3 and a valve assembly 4.

[0027] Figure 3 This is a structural view of the valve seat body of a split valve seat of a shock absorber according to the present invention. Figure 4 This is a structural diagram of the valve seat body of a split-type valve seat of a shock absorber according to this utility model, from another perspective. Figures 1 to 4As shown, the valve seat body 3 is arranged in a barrel shape, and a through center hole 31 is formed in the center of the barrel bottom of the valve seat body 3, realizing the communication between the inside and outside of the barrel of the valve seat body 3. At the same time, a plurality of flow channels 32 are formed on the outer side wall of the barrel bottom and barrel wall of the valve seat body 3, and each flow channel 32 is in communication with the center hole 31, so that the shock-absorbing oil flowing through the center hole 31 can flow through the flow channels 32 on the outside of the valve seat body 3. After the outer cylinder 2 is subsequently sleeved on the outside of the valve seat body 3, the shock-absorbing oil can still flow on the outside of the valve seat body 3, ensuring the use requirements. At the same time, the valve seat body 3 is arranged in the outer cylinder 2, and the barrel bottom and barrel wall respectively abut against the inner wall of the outer cylinder 2, realizing the sleeving connection of the valve seat body 3 in the outer cylinder 2, facilitating installation. In addition, one end of the inner cylinder 1 is inserted into the barrel inner cavity of the valve seat body 3. In order to improve the connection strength and stability, the outer cylinder 2, the inner cylinder 1 and the valve seat body 3 are all extruded and installed, and are connected in an interference fit, so that the three can form an integral structure.

[0028] Specifically, the valve assembly 4 is disassembled and installed in the valve seat body 3, that is, the valve assembly 4 as a consumable part is disassembled and connected with the whole composed of the outer cylinder 2, the inner cylinder 1 and the valve seat body 3 as non-consumable parts, providing conditions for subsequent maintenance and replacement of consumable parts, facilitating maintenance, and without the need for overall replacement, reducing the use cost. At this time, the valve assembly 4 includes a valve body 41, a first valve piece 42, a second valve piece 43 and a connecting rod 44, and the valve body 41 is arranged in a barrel shape with the barrel mouth facing the barrel bottom of the valve seat body 3, so that a cavity can be formed between the valve body 41 and the valve seat body 3, providing space for the deformation of the second valve piece 43. In addition, a fixing hole 411 is formed in the center of the barrel bottom of the valve body 41, providing convenience for the installation of the first valve piece 42 and the second valve piece 43 on the valve body 41. Furthermore, a first through hole 412 and a second through hole 413 are formed on the barrel bottom of the valve body 41. At this time, the first valve piece 42 and the second valve piece 43 are installed on the outside and the inside of the barrel bottom of the valve body 41 respectively, realizing the covering of the valve body 41 in two directions. When installing, the first valve piece 42 covers the first through hole 412 but does not cover the second through hole 413, and the second valve piece 43 covers the second through hole 413 but does not cover the first through hole 412, that is, through the interval opening and closing of the first valve piece 42 and the second valve piece 43, the first through hole 412 and the second through hole 413 are alternately opened or closed, realizing one-way conduction in two directions, meeting the shock-absorbing requirements. At the same time, the connecting rod 44 is inserted into the fixing hole 411 and the two ends are fixedly connected with the first valve piece 42 and the second valve piece 43 respectively, that is, the first valve piece 42 and the second valve piece 43 are installed at the fixing hole 411 of the valve body 41 through the connecting rod 44, which is more convenient for disassembly and assembly, providing conditions for subsequent maintenance and replacement of the first valve piece 42 and the second valve piece 43.

[0029] More specifically, the outer cylinder 2 is arranged in a barrel shape, so that one end of the outer cylinder 2 is a closed end, the structural strength is higher, the integrity is better, and the sealing performance is better. In addition, the bottom of the outer cylinder 2 is arranged as an outwardly protruding arc surface, so that the depth of the center of the bottom of the outer cylinder 2 is deeper. When assembling, the outer edge of the barrel bottom end of the valve seat body 3 is abutted against the inner wall of the barrel bottom of the outer cylinder 2. The barrel bottom of the outer cylinder 2 provides support for the installation of the valve seat body 3 in the outer cylinder 2, so that the valve seat body 3 can be stably installed. In addition, there is a gap between the barrel bottom of the outer cylinder 2 and the bottom of the valve seat body 3, so that the central hole 31 of the valve seat body 3 can smoothly communicate with the flow channel 32 on the outer wall of the barrel bottom, ensuring the smooth flow of the damping oil, and the structural design is more reasonable.

[0030] More specifically, a recessed cavity 33 is further provided on the outer wall of the barrel bottom of the valve seat body 3 and communicates with the central hole 31. The recessed cavity 33 further expands the space at the bottom of the valve seat body 3, and each flow channel 32 communicates with the recessed cavity 33. Therefore, after the valve seat body 3 is installed in the outer cylinder 2, all flow channels 32 can be communicated through the recessed cavity 33, so that the damping oil entering and exiting the central hole 31 can uniformly enter and exit different flow channels 32, so that the valve seat body 3 is more evenly stressed and has better stability.

[0031] More specifically, a transition groove 34 is further provided in each flow channel 32 and between the barrel bottom and the barrel wall of the valve seat body 3. The groove depth of the transition groove 34 is greater than the depth of the flow channels 32 at both ends, so that the flow channel 32 can expand the flow space at the turning point through the transition groove 34, so that the damping oil can smoothly flow at the corner of the flow channel 32 without stagnation, ensuring the smooth flow of the damping oil in the flow channel 32, so that the shock absorber responds more quickly and has better damping effect.

[0032] More specifically, a ring-shaped notch 35 is further provided on the outer edge of the barrel mouth end of the valve seat body 3, so that a recessed cavity is formed at the outer edge of the barrel mouth of the valve seat body 3. The ring-shaped notch 35 communicates with each flow channel 32, so that the damping oil in the flow channel 32 can directly enter the ring-shaped notch 35. The ring-shaped notch 35 expands the oil discharge efficiency of the flow channel 32, and also allows the damping oil in the ring-shaped notch 35 to uniformly enter each flow channel 32 to achieve the best state of the flow channel 32.

[0033] More specifically, a protruding ring 36 is further provided on the barrel bottom of the valve seat body 3 and outside the central hole 31. Preferably, the protruding ring 36 is an integral structure with the valve seat body 3. The protruding ring 36 increases the structural strength of the valve seat body 3 at the central hole 31, prevents deformation of the central hole 31 of the valve seat body 3 when it is suspended and impacted by the damping oil, and has higher structural strength, thereby ensuring the use performance of the shock absorber and prolonging the service life of the valve seat body 3.

[0034] More specifically, the first through holes 412 and the second through holes 413 on the valve body 41 are each provided with a plurality of holes. At this time, the plurality of first through holes 412 are arranged in a ring array with the hole axis of the fixed hole 411 as the center, and at the same time, the plurality of second through holes 413 are arranged in a ring array with the hole axis of the fixed hole 411 as the center, achieving uniform distribution of the plurality of first through holes 412 and the plurality of second through holes 413 on the valve body 41. At the same time, the plurality of second through holes 413 are located on the outside of the first through holes 412, so that the first through holes 412 and the second through holes 413 can be located at different positions on the valve body 41, achieving zoned arrangement of the first through holes 412 and the second through holes 413 on the valve body 41, and providing conditions for subsequent realization of one-way conduction in two directions through the first through holes 412 and the second through holes 413 without mutual interference.

[0035] More specifically, the first valve plate 42 for closing the first through hole 412 and the second valve plate 43 for closing the second through hole 413 are each a circular plate, and the center of the first valve plate 42 and the second valve plate 43 is connected with the connecting rod 44, so that the deformation effect of each region on the outside of the first valve plate 42 and the second valve plate 43 is the same, so that the opening and closing sizes of the plurality of first through holes 412 after opening are consistent, and the opening and closing sizes of the plurality of second through holes 413 after opening are also consistent, ensuring that the amount of shock-absorbing oil flowing through each first through hole 412 is consistent, and the amount of shock-absorbing oil flowing through each second through hole 413 is also consistent, so that the valve body 41 is more uniformly stressed. In addition, the avoidance hole 431 corresponding to the first through hole 412 is also provided on the second valve plate 43, so that the conduction of the first through hole 412 is not affected by the second valve plate 43, but is controlled only by the first valve plate 42, and the structural design is more reasonable.

[0036] More specifically, the first annular clamping groove 441 with the first clamping spring 442 is also arranged at both ends of the connecting rod 44, and the mounting hole 421 corresponding to the connecting rod 44 is provided at the center of the first valve plate 42 and the second valve plate 43. During installation, the connecting rod 44 is first inserted into the fixed hole 411 of the valve body 41, and then the two ends of the connecting rod 44 are respectively inserted into the mounting hole 421 of the first valve plate 42 and the second valve plate 43, and then the first clamping spring 442 is clamped into the first annular clamping groove 441, and the first valve plate 42 and the second valve plate 43 are pressed onto the corresponding end of the connecting rod 44 by the first clamping spring 442. Through one connecting rod 44, the installation of the first valve plate 42 and the second valve plate 43 is realized, and the disassembly and assembly structure is simple, which is conducive to subsequent maintenance and replacement.

[0037] More specifically, the outer side wall of the valve body 41 is further provided with a rubber coating 414, and a plurality of limiting grooves 415 are arranged on the outer side wall of the valve body 41 during production and manufacturing, and the rubber coating 414 is injected on the outer side wall of the valve body 41 provided with the limiting grooves 415, so as to realize the injection molding of the rubber coating 414 and the valve body 41, facilitate the processing and manufacturing, and further ensure the stability of the rubber coating 414 on the valve body 41 by limiting the sliding of the rubber coating 414 on the valve body 41, so as to prevent the rubber coating 414 from falling off. In addition, after the valve body 41 is installed into the valve seat body 3 from the inner cylinder 1, the valve body 41 and the valve seat body 3 can be sealed by the rubber coating 414 to ensure that the shock absorption can be realized. Furthermore, a second annular clamping groove 11 is arranged on the inner wall of one end of the inner cylinder 1 and the valve seat body 3, and a second clamping spring 12 is arranged in the second annular clamping groove 11, and the valve seat body 3 is pressed by the second clamping spring 12, that is, after the valve body 41 is installed on the valve seat body 3, the second clamping spring 12 can be clamped into the second annular clamping groove 11 to limit the valve body 41 in the valve seat body 3, so as to maintain the stable state of the valve body 41 during use, and the structure design is more reasonable.

[0038] The split type valve seat of the shock absorber provided by the embodiment comprises a valve seat body 3 and a valve assembly 4. The valve seat body 3 is arranged between the inner cylinder 1 and the outer cylinder 2 which are sleeved with each other, and the valve seat body 3 is arranged in a barrel shape and is provided with a central hole 31 at the bottom of the barrel. A plurality of flow channels 32 which are in communication with the central hole 31 are arranged on the outer side wall of the barrel bottom and the barrel wall of the valve seat body 3, so as to realize the communication between the inner cylinder 1 and the outer cylinder 2. The valve assembly 4 is installed in the valve seat body 3. The valve body 41 of the valve assembly 4 is provided with a first through hole 412 and a second through hole 413, and the first valve plate 42 and the second valve plate 43 are installed at both ends of the valve body 41 by the connecting rod 44 and correspond to the first through hole 412 and the second through hole 413 respectively, so that the valve assembly 4 can realize one-way conduction in two directions to meet the shock absorption requirements. Furthermore, the valve assembly 4 can be disassembled and installed in the valve seat body 3, so that it can be taken out and repaired separately without disassembling the valve seat body 3, the inner cylinder 1 and the outer cylinder 2, and the whole device does not need to be disassembled and replaced, which is more convenient for maintenance and has lower use cost.

[0039] The above is only the preferred embodiment of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious change made according to the content of the present application should be included in the protection scope of the present application.

Claims

1. A split valve seat of a shock absorber, provided between an inner cylinder and an outer cylinder, the outer cylinder and the inner cylinder being coaxially fitted with a gap provided therebetween, characterized in that, The utility model relates to a valve seat body and valve assembly, and The valve seat body is barrel-shaped, a through center hole is formed in the center of the barrel bottom of the valve seat body, a plurality of flow channels are formed on the outer side wall of the barrel bottom and barrel wall of the valve seat body, each flow channel is communicated with the center hole, the valve seat body is arranged in the outer cylinder and the barrel bottom and barrel wall of the valve seat body abut against the inner wall of the outer cylinder, one end of the inner cylinder is inserted into the barrel inner cavity of the valve seat body; The valve assembly comprises a valve body, a first valve piece, a second valve piece and a connecting rod, the valve body is barrel-shaped and the barrel mouth is arranged towards the barrel bottom of the valve seat body, a fixing hole is formed in the center of the barrel bottom of the valve body, a first through hole and a second through hole are further formed on the barrel bottom of the valve body, the first valve piece and the second valve piece are respectively mounted on the outer side and inner side of the barrel bottom of the valve body, the first valve piece covers the first through hole and does not cover the second through hole, the second valve piece covers the second through hole and does not cover the first through hole, the connecting rod is arranged in the fixing hole and the two ends of the connecting rod are fixedly connected with the first valve piece and the second valve piece. The outer cylinder is barrel-shaped, the barrel bottom of the outer cylinder is arranged as an outward protruding arc surface, the outer edge of one end of the barrel bottom of the valve seat body abuts against the inner wall of the barrel bottom of the outer cylinder.

2. The split valve cup of a shock absorber according to claim 1, characterized in that A recessed cavity communicated with the center hole is formed on the outer wall of the barrel bottom of the valve seat body, each flow channel is communicated with the recessed cavity.

3. The split valve cup of a shock absorber according to claim 2, characterized in that A transition groove is arranged in each flow channel and between the barrel bottom and barrel wall of the valve seat body.

4. The split valve cup of a shock absorber according to claim 1, wherein An annular notch is formed on the outer edge of one end of the barrel mouth of the valve seat body, the annular notch is communicated with each flow channel.

5. The split valve cup of a shock absorber according to claim 1, wherein A protruding ring is arranged on the barrel bottom of the valve seat body and outside the center hole.

6. The split valve cup of a shock absorber according to claim 1, wherein A plurality of first through holes and a plurality of second through holes are arranged, the plurality of first through holes are arranged in an annular array with the hole axis of the fixing hole as the center, the plurality of second through holes are arranged in an annular array with the hole axis of the fixing hole as the center, and the plurality of second through holes are arranged outside the first through holes.

7. The split valve cup of a shock absorber according to claim 1, wherein The first valve piece and the second valve piece are both circular pieces, an avoiding hole corresponding to the first through hole is formed on the second valve piece.

8. The split valve cup of a shock absorber according to claim 7, characterized in that First annular clamping grooves with first clamping springs are arranged on the two ends of the connecting rod, mounting holes corresponding to the connecting rod are formed on the first valve piece and the second valve piece, the two ends of the connecting rod are inserted into the mounting holes of the first valve piece and the second valve piece and are pressed by the first clamping springs of the corresponding ends.

9. The split valve cup of a shock absorber according to claim 1, wherein An encapsulation is arranged on the outer side wall of the valve body, a plurality of limiting grooves are formed on the outer side wall of the valve body, the encapsulation is injection molded on the outer side wall of the valve body provided with the limiting grooves, a second annular clamping groove is formed on the inner wall of one end of the inner cylinder connected with the valve seat body, a second clamping spring is arranged in the second annular clamping groove, and the second clamping spring presses the valve seat body.

10. The split valve cup of a shock absorber according to claim 1, wherein ​

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