Valve seat of automobile shock absorber

Abstract

The utility model discloses an automobile shock absorber valve seat which comprises a valve seat body, a first annular boss and a second annular boss which are arranged at intervals from inside to outside are integrally formed on the upper end face of the valve seat body, and the first annular boss and the second annular boss are both coaxially arranged with the valve seat body. A plurality of oil discharge channels which are arranged at intervals in the circumferential direction are arranged on the valve seat body located between the first annular boss and the second annular boss, and each oil discharge channel penetrates through the valve seat body in the axial direction of the valve seat body; a cross-shaped reinforcing block is arranged in each oil discharge channel, the outer end of each reinforcing block is integrally connected with the inner wall of the corresponding oil discharge channel, the upper end of each reinforcing block extends to the upper end of the corresponding oil discharge channel, and the lower end of each reinforcing block extends to the lower end of the corresponding oil discharge channel. According to the utility model, the condition that the valve seat body positioned at the oil discharge channel is cracked can be avoided, so that the valve seat body can be effectively prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile shock absorbers, in particular to a valve seat of an automobile shock absorber. Background Art

[0002] The automobile shock absorber valve seat is an important component in the automobile shock absorber. When the valve seat is in use, the upper end of the valve seat is inserted into the lower end of the working cylinder barrel in the automobile shock absorber, and the valve seat is fixed to the working cylinder barrel. The automobile shock absorber valve seat currently on the market includes a valve seat body, and the upper end surface of the valve seat body is integrally formed with a first annular boss and a second annular boss which are arranged from the inside to the outside at intervals. The first annular boss and the second annular boss are both coaxially arranged with the valve seat body. A plurality of unloading valves which are arranged at circumferential intervals are arranged on the valve seat body between the first annular boss and the second annular boss. Oil channel, each oil unloading channel penetrates the valve seat body along the axial direction of the valve seat body; however, in the above-mentioned automobile shock absorber valve seat structure, since the valve seat body between the first annular boss and the second annular boss is provided with a plurality of oil unloading channels arranged at circumferential intervals, the valve seat body between the first annular boss and the second annular boss has the disadvantage of low structural strength, specifically, the valve seat body located at the oil unloading channel is prone to cracking, which will cause damage to the valve seat body, that is, there is a disadvantage of a short service life of the automobile shock absorber valve seat. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a vehicle shock absorber valve seat, which can prevent the valve seat body located at the oil unloading channel from cracking, thereby effectively preventing the valve seat body from being damaged, that is, the service life of the vehicle shock absorber valve seat can be extended.

[0004] The utility model discloses a valve seat for an automobile shock absorber, comprising a valve seat body, wherein a first annular boss and a second annular boss are integrally formed on the upper end surface of the valve seat body and are arranged at intervals from the inside to the outside, and the first annular boss and the second annular boss are arranged coaxially with the valve seat body; a plurality of oil unloading channels arranged at intervals in the circumferential direction are arranged on the valve seat body between the first annular boss and the second annular boss, and each oil unloading channel penetrates the valve seat body along the axial direction of the valve seat body; a "cross"-shaped reinforcement block is arranged in each oil unloading channel, and the outer end of each reinforcement block is integrally connected to the inner wall of the corresponding oil unloading channel, and the upper end of each reinforcement block extends to the upper end of the corresponding oil unloading channel, and the lower end of each reinforcement block extends to the lower end of the corresponding oil unloading channel.

[0005] The utility model can improve the structural strength of the valve seat body located at the oil unloading channel by arranging a "cross"-shaped reinforcement block in each oil unloading channel, thereby preventing the valve seat body located at the oil unloading channel from cracking, and further effectively preventing the valve seat body from being damaged, that is, the service life of the automobile shock absorber valve seat can be extended.

[0006] The utility model provides a valve seat for an automobile shock absorber, wherein a reinforcing rib group is provided on the upper end surface of the valve seat body between the first annular boss and the second annular boss and between each two adjacent oil unloading channels, each reinforcing rib group includes a plurality of reinforcing ribs spaced and distributed in the circumferential direction of the valve seat body, each reinforcing rib extends in the radial direction of the valve seat body, both ends of each reinforcing rib are connected to the first annular boss and the second annular boss as a whole, the upper end surface of each reinforcing rib is lower than the upper end surface of the first annular boss and the second annular boss, and the lower end surface of each reinforcing rib is connected to the valve seat body as a whole; by adopting this structure, under the action of the reinforcing ribs, the structural strength of the valve seat body located between the first annular boss and the second annular boss can be further improved, that is, the crack resistance of the valve seat body located between the first annular boss and the second annular boss can be improved, and in addition, under the action of the reinforcing ribs, the structural strength of the first annular boss and the second annular boss can also be improved to avoid the first annular boss and the second annular boss from breaking.

[0007] The automobile shock absorber valve seat of the utility model is characterized in that chamfered surfaces are arranged on the two side edges of the upper end of each reinforcing rib. By adopting this structure, after metal powder is extruded into a valve seat body through a die, when the valve seat body is demolded, each reinforcing rib can be more easily separated from the die under the action of the chamfered surfaces.

[0008] The utility model discloses a valve seat for automobile shock absorber, wherein an annular step is arranged at the outer edge of the upper end of the valve seat body, an annular groove is arranged on the side wall of the annular step, the lower edge of the annular groove is connected with the bottom surface of the annular step, and the annular groove is used to fill solder; by adopting this structure, after the valve seat body and the working cylinder barrel of the shock absorber are fixed, the solder can be filled in the annular groove first, and then the upper end of the valve seat body is inserted into one end of the working cylinder barrel, and then the working cylinder barrel and the valve seat body are heated, at this time, the solder located in the annular groove can realize the welding of the working cylinder barrel and the valve seat body, and after the working cylinder barrel and the valve seat body are cooled, the working cylinder barrel and the valve seat body can be fixed by welding with solder; adopting this method to weld and fix the working cylinder barrel and the valve seat body has the advantage of convenient welding of the working cylinder barrel and the valve seat body, and in addition, the welding firmness of the working cylinder barrel and the valve seat body can be improved.

[0009] The utility model discloses a valve seat for an automobile shock absorber, wherein an annular rounded surface is arranged at the outer edge of the upper end of the valve seat body, and the annular rounded surface is used for cooperating and guiding with the inner wall of one end of the working cylinder barrel so as to facilitate the upper end of the valve seat body to be inserted into the one end of the working cylinder barrel; after adopting this structure, when the upper end of the valve seat body is cooperating and plugged with the one end of the working cylinder barrel, under the action of the annular rounded surface, the annular rounded surface can be cooperating and guiding with the inner wall of one end of the working cylinder barrel so as to facilitate the upper end of the valve seat body to be inserted into the one end of the working cylinder barrel, that is, it can bring convenience to the cooperating and plugging of the valve seat body and the working cylinder barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0012] Figure 2 for Figure 1 The schematic diagram of the structure after the enlargement of A in the middle;

[0013] Figure 3 It is a cross-sectional structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0015] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0016] like Figure 1-3As shown, the automobile shock absorber valve seat of the utility model comprises a valve seat body 1, on the upper end surface of the valve seat body 1, a first annular boss 11 and a second annular boss 12 are integrally formed and arranged from the inside to the outside, and the first annular boss 11 and the second annular boss 12 are coaxially arranged with the valve seat body 1; a plurality of oil unloading channels 13 arranged at intervals in the circumferential direction are arranged on the valve seat body 1 between the first annular boss 11 and the second annular boss 12, and each oil unloading channel 13 penetrates the valve seat body 1 along the axial direction of the valve seat body 1; a "cross"-shaped reinforcement block 14 is arranged in each oil unloading channel 13, the outer end of each reinforcement block 14 is integrally connected with the inner wall of the corresponding oil unloading channel 13, the upper end of each reinforcement block 14 extends to the upper end of the corresponding oil unloading channel 13, and the lower end of each reinforcement block 14 extends to the lower end of the corresponding oil unloading channel 13.

[0017] A reinforcing rib group is provided on the upper end surface of the valve seat body 1 between the first annular boss 11 and the second annular boss 12 and between each two adjacent oil unloading channels 13. Each reinforcing rib group includes a plurality of reinforcing ribs 15 distributed at intervals in the circumferential direction of the valve seat body 1. Each reinforcing rib 15 extends in the radial direction of the valve seat body 1. Both ends of each reinforcing rib 15 are connected to the first annular boss 11 and the second annular boss 12 as a whole. The upper end surface of each reinforcing rib 15 is lower than the first annular boss 11 and the second annular boss 12. 2, and the lower end surface of each reinforcing rib 15 is connected to the valve seat body 1 as a whole; by adopting this structure, under the action of the reinforcing ribs, the structural strength of the valve seat body between the first annular boss and the second annular boss can be further improved, that is, the crack resistance of the valve seat body between the first annular boss and the second annular boss can be improved. In addition, under the action of the reinforcing ribs, the structural strength of the first annular boss and the second annular boss can also be improved to avoid the first annular boss and the second annular boss from being broken.

[0018] Each reinforcing rib 15 is provided with chamfered surfaces 16 on both sides of the upper end. With this structure, after the metal powder is extruded into the valve seat body through the die, when the valve seat body is demolded, each reinforcing rib can be more easily separated from the die under the action of the chamfered surfaces.

[0019] An annular step 17 is provided at the outer edge of the upper end of the valve seat body 1, and an annular groove 18 is provided on the side wall of the annular step 17. The lower edge of the annular groove 18 is connected with the bottom surface of the annular step 17, and the annular groove 18 is used to fill solder. By adopting this structure, after the valve seat body and the working cylinder of the shock absorber are fixed, the solder can be filled in the annular groove first, and then the upper end of the valve seat body is inserted into one end of the working cylinder, and then the working cylinder and the valve seat body are heated. At this time, the solder located in the annular groove can realize the welding of the working cylinder and the valve seat body, and after the working cylinder and the valve seat body are cooled, the working cylinder and the valve seat body can be fixed by welding with solder. The method of welding and fixing the working cylinder and the valve seat body has the advantage of convenient welding of the working cylinder and the valve seat body, and in addition, the welding firmness of the working cylinder and the valve seat body can be improved.

[0020] An annular rounded surface 19 is provided at the outer edge of the upper end of the valve seat body 1, and the annular rounded surface 19 is used to cooperate and guide with the inner wall of one end of the working cylinder so as to facilitate the insertion of the upper end of the valve seat body 1 into the one end of the working cylinder; by adopting this structure, when the upper end of the valve seat body is cooperated and plugged with the one end of the working cylinder, under the action of the annular rounded surface, the annular rounded surface can cooperate and guide with the inner wall of one end of the working cylinder so as to facilitate the insertion of the upper end of the valve seat body into the one end of the working cylinder, that is, it can bring convenience to the cooperation and plugging of the valve seat body and the working cylinder.

[0021] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A vehicle shock absorber valve seat, comprising a valve seat body (1), wherein a first annular boss (11) and a second annular boss (12) are integrally formed on the upper end surface of the valve seat body (1) and are arranged at intervals from the inside to the outside, and the first annular boss (11) and the second annular boss (12) are both coaxially arranged with the valve seat body (1); a plurality of oil unloading channels (13) are arranged at intervals in the circumferential direction on the valve seat body (1) between the first annular boss (11) and the second annular boss (12), and each of the oil unloading channels (13) penetrates the valve seat body (1) along the axial direction of the valve seat body (1); and characterized in that: A "cross"-shaped reinforcement block (14) is provided in each of the oil unloading channels (13); the outer end of each of the reinforcement blocks (14) is integrally connected to the inner wall of the corresponding oil unloading channel (13); the upper end of each of the reinforcement blocks (14) extends to the upper end of the corresponding oil unloading channel (13); and the lower end of each of the reinforcement blocks (14) extends to the lower end of the corresponding oil unloading channel (13).

2. The automobile shock absorber valve seat according to claim 1, characterized in that: A reinforcing rib group is provided on the upper end surface of the valve seat body (1) between the first annular boss (11) and the second annular boss (12) and between each two adjacent oil unloading channels (13); each of the reinforcing rib groups comprises a plurality of reinforcing ribs (15) spaced apart in the circumferential direction of the valve seat body (1); each of the reinforcing ribs (15) extends in the radial direction of the valve seat body (1); both ends of each of the reinforcing ribs (15) are integrally connected to the first annular boss (11) and the second annular boss (12); the upper end surface of each of the reinforcing ribs (15) is lower than the upper end surfaces of the first annular boss (11) and the second annular boss (12); and the lower end surface of each of the reinforcing ribs (15) is integrally connected to the valve seat body (1).

3. The automobile shock absorber valve seat according to claim 2, characterized in that: Chamfered surfaces (16) are provided at two side edges of the upper end of each reinforcing rib (15).

4. The automobile shock absorber valve seat according to any one of claims 1 to 3, characterized in that: An annular step (17) is provided at the outer edge of the upper end of the valve seat body (1), an annular groove (18) is provided on the side wall of the annular step (17), the lower edge of the annular groove (18) is connected to the bottom surface of the annular step (17), and the annular groove (18) is used to fill solder.

5. The automobile shock absorber valve seat according to claim 4, characterized in that: An annular rounded surface (19) is provided at the outer edge of the upper end of the valve seat body (1), and the annular rounded surface (19) is used to cooperate with the inner wall of one end of the working cylinder barrel to guide so that the upper end of the valve seat body (1) can be inserted into the one end of the working cylinder barrel.

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