One-way valve, electromagnetic valve assembly, shock absorber and vehicle

Abstract

The utility model relates to a one-way valve, an electromagnetic valve assembly, a shock absorber and a vehicle. The one-way valve comprises a one-way valve body, a cover plate and an elastic part, the cover plate is connected to the one-way valve body, the first end of the elastic part is connected with the cover plate, and the second end of the elastic part is connected with the one-way valve body. According to the one-way valve, the elastic piece is integrally assembled in the one-way valve, and the one-way valve and the elastic piece are not two mutually independent parts, so that when the electromagnetic valve is assembled, the elastic piece such as a spring and the one-way valve do not need to be additionally assembled together, the assembling difficulty is reduced, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a one-way valve, an electromagnetic valve assembly, a shock absorber and a vehicle. BACKGROUND

[0002] In a vehicle shock absorber, an electromagnetic valve is a main component. The electromagnetic valve mainly includes a one-way valve, a spring and the like.

[0003] In the related art, when assembling the electromagnetic valve, the spring needs to be inserted into the inner hole of the one-way valve, which has certain assembly difficulty and is likely to affect the production efficiency. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a one-way valve, which integrally assembles an elastic member in the one-way valve, so that when assembling the electromagnetic valve, the elastic member such as the spring does not need to be assembled separately, the assembly difficulty is reduced, and the production efficiency is improved, so as to at least partially solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, according to the first aspect of the present application, a one-way valve is provided, comprising:

[0006] a one-way valve body;

[0007] a cover plate connected to the one-way valve body;

[0008] an elastic member, a first end of the elastic member being connected to the cover plate, and a second end of the elastic member being connected to the one-way valve body.

[0009] Optionally, the cover plate is formed with a positioning boss, and the elastic member is sleeved on the positioning boss.

[0010] Optionally, the elastic member abuts against the inner top surface of the cover plate.

[0011] Optionally, the one-way valve body has a connecting portion, the connecting portion includes a connecting section and a protruding portion, the protruding portion protrudes from the connecting section, and the cover plate is sleeved on the connecting section and abuts against the protruding portion.

[0012] According to the second aspect of the present application, an electromagnetic valve assembly is provided, comprising the one-way valve as described above.

[0013] Optionally, the electromagnetic valve assembly further comprises a mounting seat and an electromagnetic valve assembly, a first end of the one-way valve is connected to the electromagnetic valve assembly, and a second end of the one-way valve is connected to the mounting seat.

[0014] Optionally, the mounting seat is formed with a mounting cavity, and at least one of the one-way valve and the electromagnetic valve assembly is mounted in the mounting cavity.

[0015] Optionally, the mounting base is formed with a first support boss having a support surface facing the electromagnetic valve assembly, and the check valve abuts against the support surface.

[0016] Optionally, the number of the first support bosses is at least two, and the support surfaces of different first support bosses are located in the same plane.

[0017] Optionally, a first oil passage is formed between two adjacent first support bosses.

[0018] Optionally, the first support boss is annular in structure, and the first support boss is formed with a groove, and a groove wall of the groove and the check valve surround to form a second oil passage.

[0019] Optionally, the check valve is formed with a second support boss, and the mounting base is formed with an extension portion protruding from an inner wall surface of the mounting base, and the second support boss abuts against the extension portion.

[0020] Optionally, the number of the second support bosses is at least two, and a third oil passage is formed between two adjacent second support bosses.

[0021] Optionally, the inner wall surface of the mounting base and the check valve are spaced apart to form a main oil passage between the check valve and the inner wall surface of the mounting base.

[0022] According to a third aspect of the present application, a shock absorber is provided, including a shock absorber body and the electromagnetic valve assembly as described above, and the electromagnetic valve assembly is connected to the shock absorber body.

[0023] Optionally, the shock absorber body is formed with a connector having a connecting cavity, and the check valve is inserted into the connecting cavity and is in sealed connection with the connector.

[0024] According to a second aspect of the present application, a vehicle is provided, including the check valve as described above.

[0025] In the check valve of the embodiments of the present application, one end of the elastic member is connected with the cover plate, and the other end is connected with the check valve body, so that the elastic member, the cover plate and the check valve body form the check valve, and the integration of the check valve is improved. Compared with the related art, in the present application, the elastic member is integrally assembled in the check valve, and the check valve and the elastic member are not two independent components, and thus when the electromagnetic valve is assembled, the spring and the check valve do not need to be assembled together, the assembly difficulty is reduced, and the production efficiency is improved.

[0026] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0028] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0029] Figure 1 is one of the sectional views of the shock absorber provided in the exemplary embodiment of the present disclosure;

[0030] Figure 2 is the structure schematic diagram of the shock absorber provided in the exemplary embodiment of the present disclosure Figure 1 is the enlarged schematic diagram of the structure at A in

[0031] Figure 3 is the structure schematic diagram of the shock absorber provided in the exemplary embodiment of the present disclosure;

[0032] Figure 4 is one of the structure schematic diagrams of the mounting seat provided in the exemplary embodiment of the present disclosure;

[0033] Figure 5 is the structure schematic diagram of the shock absorber provided in the exemplary embodiment of the present disclosure Figure 4 is the schematic diagram of another angle of the mounting seat shown;

[0034] Figure 6 is the structure schematic diagram of the one-way valve body provided in the exemplary embodiment of the present disclosure;

[0035] Figure 7 is the structure schematic diagram of the cover plate provided in the exemplary embodiment of the present disclosure;

[0036] Figure 8 is one of the structure schematic diagrams of the one-way valve provided in the exemplary embodiment of the present disclosure;

[0037] Figure 9 is the second sectional view of the shock absorber provided in the exemplary embodiment of the present disclosure;

[0038] Figure 10 is the second structure schematic diagram of the mounting seat provided in the exemplary embodiment of the present disclosure;

[0039] Figure 11 is the structure schematic diagram of the electromagnetic valve assembly provided in the exemplary embodiment of the present disclosure;

[0040] Figure 12is a sectional view of a damper provided in the exemplary embodiment of the present disclosure;

[0041] Figure 13 is a sectional view of a damper provided in the exemplary embodiment of the present disclosure;

[0042] Figure 14 is a structural schematic view of a one-way valve provided in the exemplary embodiment of the present disclosure Figure 13 is a schematic view of another angle of the mounting seat shown;

[0043] Figure 15 is a structural schematic view of a one-way valve provided in the exemplary embodiment of the present disclosure

[0044] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0045] 1, hanging ring; 2, bottom of oil storage cylinder; 3, bottom cover; 4, bottom valve; 4a, bottom valve compression valve plate; 4b, bottom valve compensation valve plate; 4c, bottom valve bottom hollow passage; 5, compression solenoid valve assembly; 6, lower intermediate cylinder; 6a, lower intermediate cylinder oil outlet hole; 6b, lower intermediate cylinder joint; 6c, lower intermediate cylinder oil flow passage; 7, solenoid valve assembly; 71, one-way valve body; 71a, sealing element; 71b, one-way valve inner oil passage hole; 71c, main oil flow passage; 71d, one-way valve valve plate; 71g, one-way valve lower end limiting surface; 711, elastic element; 71f, one-way valve outer oil passage hole; 71j, one-way valve lower end outer circular surface; 72, cover plate; 72a, positioning boss; 72b, cover plate upper end surface; 72c, cover plate oil inlet hole; 72d, cover plate lower end inner hole; 72e, cover plate lower end surface; 72f, inner top surface; 71h, connecting section; 71i, protruding portion; 74, solenoid valve sealing ring; 75, solenoid valve assembly; 75a, solenoid valve upper end cover; 75b, solenoid valve oil inlet hole; 75c, solenoid valve oil outlet hole; 76, mounting seat; 76a, mounting seat bottom inner hole surface; 76b, mounting seat inner threaded hole surface; 76c, first support boss; 76d, first oil flow passage; 76f, groove; 76g, through hole; 76h, mounting seat bottom outer circular surface; 711a, upper end ring of elastic element; 711b, lower end ring of elastic element; 710, one-way valve assembly; 761, second support boss; 762, extension; 8, intermediate cylinder joint; 8a, intermediate cylinder joint sealing ring; 9, piston assembly; 10, limiting support seat; 11, limiting buffer sleeve; 12, oil storage cylinder; 12a, oil storage cavity; 13, upper intermediate cylinder; 13a, upper intermediate cylinder oil flow passage; 13b, upper intermediate cylinder oil passage hole; 13c, joint; 14, working cylinder; 14a, upper oil passage hole of working cylinder; 14b, upper cavity of working cylinder; 14c, lower cavity of working cylinder; 14d, lower oil passage hole of working cylinder; 15, guide sleeve assembly; 16, oil seal assembly; 17, piston rod. DETAILED DESCRIPTION

[0046] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall within the protection scope of the present application.

[0047] According to a first aspect of the present application, referring to Figures 1 to 15 , the present application provides a check valve.

[0048] Referring to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 , the check valve comprises a check valve body 71, a cover plate 72 connected to the check valve body 71, and an elastic member 711, wherein a first end of the elastic member 711 is connected to the cover plate 72, and a second end of the elastic member 711 is connected to the check valve body 71.

[0049] It can be understood that one end of the elastic member 711 is connected to the cover plate 72, and the other end is connected to the check valve body 71, so that the elastic member 711, the cover plate 72 and the check valve body 71 form a check valve, thereby improving the integration of the check valve. Compared with the related art, the present application integrally assembles the elastic member 711 in the check valve, so that the check valve and the elastic member 711 are not two independent components, and thus when assembling the electromagnetic valve, the spring and the check valve do not need to be assembled together, thereby reducing the assembly difficulty and being beneficial to improving the production efficiency.

[0050] It can be understood that the check valve in the related art does not include the spring and the like elastic member 711, and thus when assembling the electromagnetic valve, the spring needs to be inserted into the inner hole of the check valve body 71. However, since the radial fitting gap between the inner hole of the check valve body 71 and the spring is small, the spring is difficult to be smoothly inserted into the inner hole of the check valve body 71, resulting in a certain difficulty in assembling the electromagnetic valve. The present application directly integrates the elastic member 711 in the check valve, and thus when assembling the electromagnetic valve, the elastic member 711 does not need to be additionally installed, thereby reducing the assembly difficulty of the electromagnetic valve and being beneficial to improving the production efficiency.

[0051] In some examples, a mounting space is formed between the cover plate 72 and the check valve body 71, and the elastic member 711 is arranged in the mounting space.

[0052] In some examples, the elastic member 711 is, for example, a spring or an elastic ring.

[0053] In some embodiments, referring to Figure 6 , Figure 7 andFigure 8 The cover plate 72 is formed with a positioning boss 72a, and the elastic member 711 is sleeved on the positioning boss 72a.

[0054] It can be understood that the positioning boss 72a can limit the elastic member 711, thereby improving the installation stability of the elastic member 711.

[0055] It can be understood that the positioning boss 72a can limit the elastic member 711 in the radial direction.

[0056] In some embodiments, referring to Figure 6 , Figure 7 and Figure 8 , the elastic member 711 abuts against the inner top surface 72f of the cover plate 72.

[0057] It can be understood that the abutment between the elastic member 711 and the inner top surface 72f of the cover plate 72 allows the inner top surface 72f of the cover plate 72 to limit the elastic member 711, so that the elastic member 711 cannot move towards the inner top surface 72f of the cover plate 72, thereby improving the installation stability of the elastic member 711.

[0058] In some embodiments, referring to Figure 6 , Figure 7 and Figure 8 , the one-way valve body 71 has a connecting portion including a connecting segment 71h and a protruding portion 71i protruding from the connecting segment 71h, and the cover plate 72 is sleeved on the connecting segment 71h and abuts against the protruding portion 71i.

[0059] It can be understood that the cover plate 72 and the connecting segment 71h are sleeved and connected, which is simple and convenient.

[0060] In some examples, the cover plate 72 is in interference fit with the connecting segment 71h.

[0061] According to a second aspect of the present application, the present application provides an electromagnetic valve assembly 7 comprising the one-way valve described above.

[0062] It can be understood that one end of the elastic member 711 is connected to the cover plate 72, and the other end is connected to the one-way valve body 71, so that the elastic member 711, the cover plate 72 and the one-way valve body 71 form a one-way valve, thereby improving the integration of the one-way valve. That is, by integrally assembling the elastic member 711 in the one-way valve, the spring and other elastic members 711 do not need to be separately assembled when assembling the electromagnetic valve, thereby reducing the assembly difficulty and being beneficial to improving the production efficiency.

[0063] In some embodiments, referring toFigure 1 、 Figure 2 and Figure 3 The electromagnetic valve assembly further comprises a mounting seat 76 and an electromagnetic valve assembly 75, the first end of the check valve is connected with the electromagnetic valve assembly 75, and the second end of the check valve is connected with the mounting seat 76.

[0064] It can be understood that the check valve, the electromagnetic valve assembly 75 and the mounting seat 76 are connected to form an electromagnetic valve, and the cooperation of the electromagnetic valve assembly 75 and the mounting seat 76 can realize the limiting fixing of the check valve, which is beneficial to simplify the structure of the electromagnetic valve.

[0065] In some embodiments, the mounting seat 76 is formed with a mounting cavity, and at least one of the check valve and the electromagnetic valve assembly 75 is mounted in the mounting cavity.

[0066] It can be understood that the check valve and / or the electromagnetic valve assembly 75 are mounted in the mounting cavity of the mounting seat 76, which improves the space utilization of the mounting seat 76 and is beneficial to improve the compactness of the electromagnetic valve.

[0067] In some examples, the check valve and the electromagnetic valve assembly 75 are both mounted in the mounting cavity, the electromagnetic valve assembly 75 is connected with the inner wall surface of the mounting cavity, the first end of the check valve abuts against the mounting seat 76, and the second end of the check valve abuts against the electromagnetic valve assembly 75.

[0068] In some embodiments, the mounting seat 76 is formed with a through hole 76g communicating with the mounting cavity, one end of the check valve is arranged in the through hole 76g and connected with the oil chamber of the shock absorber, and there is a gap between the check valve and the hole wall of the through hole 76g, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil chamber of the shock absorber through the gap between the check valve and the hole wall of the through hole 76g.

[0069] In some embodiments, referring to Figure 2 、 Figure 4 and Figure 5 The mounting seat 76 is formed with a first support boss 76c, the first support boss 76c has a support surface facing the electromagnetic valve assembly 75, and the check valve abuts against the support surface.

[0070] It can be understood that the check valve abuts against the support surface, that is, the first support boss 76c can support the check valve.

[0071] In some examples, the check valve is arranged in the mounting cavity, and the first support boss 76c is formed on the inner wall surface of the mounting cavity.

[0072] In some embodiments, the number of the first support boss 76c is at least two, and the support surfaces of different first support bosses 76c are located in the same plane.

[0073] It can be understood that the support surfaces of different first support bosses 76c can support the check valve, and the support surfaces of different first support bosses 76c are designed to be located in the same plane, so that the support surfaces of different first support bosses 76c can simultaneously support the check valve.

[0074] In some embodiments, referring to Figure 2 , Figure 4 and Figure 5 , a first oil passage 76d is formed between adjacent two first support bosses 76c.

[0075] It can be understood that by forming the first oil passage 76d between the adjacent two first support bosses 76c, the oil required for the operation of the electromagnetic valve can flow through the first oil passage 76d, ensuring that the electromagnetic valve can operate normally.

[0076] In some examples, the first oil passage 76d is in communication with the oil outlet hole of the electromagnetic valve assembly 75, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage cavity 12a of the shock absorber through the first oil passage 76d.

[0077] Specifically, the gap between the check valve and the hole wall of the through hole 76g is in communication with the first oil passage 76d, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage cavity 12a of the shock absorber through the first oil passage 76d.

[0078] In some examples, the through hole 76g is in interference fit with the shaft hole of the bottom outer circular surface 76h of the mounting seat, and then is fixed by welding.

[0079] In some embodiments, referring to Figure 9 and Figure 10 , the first support boss 76c is in an annular structure, the first support boss 76c is formed with a groove 76f, and the groove wall of the groove 76f and the check valve surround to form a second oil passage.

[0080] It can be understood that when the first support boss 76c is in an annular structure, in order to avoid the complete abutment of the check valve and the first support boss 76c causing the oil to be unable to flow, the groove 76f is formed at the first support boss 76c to form a second oil passage between the groove wall of the groove 76f and the check valve, so that the oil can flow through the second oil passage.

[0081] It can be understood that the bottom of the mounting seat 76 is a complete annular support plane, which can reduce the processing and manufacturing difficulty of the mounting seat 76, the check valve body 71 is a powder metallurgy part, and after the addition of the bottom support boss of the check valve, the check valve body 71 can still be smoothly manufactured, which helps to reduce the manufacturing cost of the entire shock absorber.

[0082] In some examples, the gap between the one-way valve and the hole wall of the through hole 76g communicates with the second oil passage, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage chamber 12a of the shock absorber through the second oil passage.

[0083] In some embodiments, referring to Figure 12 , Figure 13 , Figure 14 and Figure 15 , the one-way valve is formed with a second supporting boss 761, the mounting seat 76 is formed with an extension 762 protruding from the inner wall surface of the mounting seat 76, and the second supporting boss 761 abuts against the extension 762.

[0084] It can be understood that the extension 762 protrudes from the inner wall surface of the mounting seat 76, so that when the one-way valve is mounted in the mounting seat 76, the second supporting boss 761 of the one-way valve abuts against the extension 762, thereby limiting the one-way valve.

[0085] In some examples, the extension 762 is formed on the inner wall surface of the mounting cavity, the one-way valve is mounted in the mounting cavity, and the second supporting boss 761 abuts against the extension 762 towards one side of the electromagnetic valve assembly 75.

[0086] In some embodiments, the number of the second supporting bosses 761 is at least two, and a third oil passage is formed between the adjacent two second supporting bosses 761.

[0087] It can be understood that by forming the third oil passage between the adjacent two second supporting bosses 761, the oil required for the operation of the electromagnetic valve can flow through the third oil passage, thereby ensuring that the electromagnetic valve can operate normally.

[0088] In some examples, the third oil passage communicates with the oil outlet hole of the electromagnetic valve assembly 75, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage chamber 12a of the shock absorber through the third oil passage.

[0089] Specifically, the gap between the one-way valve and the hole wall of the through hole 76g communicates with the third oil passage, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage chamber 12a of the shock absorber through the third oil passage.

[0090] In some embodiments, referring to Figure 1 and Figure 2 , the inner wall surface of the mounting seat 76 and the one-way valve are spaced apart to form a main oil passage 71c between the one-way valve and the inner wall surface of the mounting seat 76.

[0091] It can be understood that by forming the main oil passage 71c between the one-way valve and the inner wall surface of the mounting seat 76, the oil required for the operation of the electromagnetic valve can flow through the main oil passage 71c, thereby ensuring that the electromagnetic valve can operate normally.

[0092] In some examples, the main oil passage 71c and the oil outlet hole of the electromagnetic valve assembly 75 are communicated, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage cavity 12a of the shock absorber through the main oil passage 71c.

[0093] Specifically, the gap between the one-way valve and the hole wall of the through hole 76g is communicated with the main oil passage 71c, so that the oil discharged from the oil outlet hole 75c of the electromagnetic valve can flow back to the oil storage cavity 12a of the shock absorber through the main oil passage 71c.

[0094] In some examples, the main oil passage 71c communicates the oil outlet hole 75c of the electromagnetic valve and the first oil passage 76d.

[0095] In some examples, the main oil passage 71c communicates the oil outlet hole 75c of the electromagnetic valve and the second oil passage.

[0096] In some examples, the main oil passage 71c communicates the oil outlet hole 75c of the electromagnetic valve and the third oil passage.

[0097] According to a third aspect of the present application, the present application provides a shock absorber, comprising a shock absorber body and the above-mentioned electromagnetic valve assembly 7, and the electromagnetic valve assembly 7 is connected to the shock absorber body.

[0098] It can be understood that one end of the elastic member 711 is connected with the cover plate 72, and the other end is connected with the one-way valve body 71, so that the elastic member 711, the cover plate 72 and the one-way valve body 71 form a one-way valve, thereby improving the integration of the one-way valve. That is, by integrally assembling the elastic member 711 in the one-way valve, and then assembling the electromagnetic valve, the elastic member 711 such as spring does not need to be assembled separately, thereby reducing the assembly difficulty and being beneficial to improve the production efficiency.

[0099] In some embodiments, the shock absorber body is formed with a connector 13c having a connecting cavity, and the one-way valve is inserted into the connecting cavity and is in sealed connection with the connector 13c.

[0100] It can be understood that the one-way valve is inserted into the connecting cavity to realize the connection of the one-way valve and the shock absorber body. At the same time, the one-way valve and the connector 13c are in sealed connection, thereby improving the sealing performance of the connection between the one-way valve and the connector 13c.

[0101] In some examples, a sealing member 71a is arranged at the connection between the one-way valve and the connector 13c, and the sealing member 71a can improve the sealing performance of the connection between the one-way valve and the connector 13c.

[0102] Specifically, the one-way valve is formed with a mounting groove, and the sealing member 71a is mounted in the mounting groove.

[0103] The shock absorber of the present application, as shown in Figure 1 、 Figure 2 and Figure 3 , is composed of an oil reservoir cylinder 12, a hanger ring 1, a bottom cover 3, and a mounting seat 76, which are connected by welding.

[0104] The piston assembly 9, the limiting support seat 10, the limiting buffer sleeve 11, the guide sleeve assembly 15, the oil seal assembly 16, and the piston rod 17 constitute a connecting rod piston assembly.

[0105] The working cylinder 14, the upper intermediate cylinder 13, the joint 13c, the intermediate cylinder joint 8, the intermediate cylinder joint sealing ring 8a, the lower intermediate cylinder 6, the lower intermediate cylinder joint 6b, the bottom valve 4, the bottom valve compression valve plate 4a, and the bottom valve compensation valve plate 4b constitute a working cylinder bottom valve assembly.

[0106] The piston assembly 9 divides the inside of the working cylinder 14 into two chambers, i.e., a working cylinder upper chamber 14b and a working cylinder lower chamber 14c. The upper intermediate cylinder 13 and the working cylinder 14 form an upper intermediate cylinder oil flow passage 13a, and the lower intermediate cylinder 6 and the working cylinder 14 form a lower intermediate cylinder oil flow passage 6c.

[0107] The working cylinder bottom valve assembly is mounted and matched on the inner bottom surface of the bottom cover 3 through the bottom valve 4. The connecting rod piston assembly is matched with the inner wall shaft hole of the working cylinder 14 through the outer circular surface of the piston assembly 9. The outer circular surface of the guide sleeve assembly 15 is matched with the inner wall shaft hole of the oil reservoir cylinder 12. The upper end surface of the oil reservoir cylinder 12 is bent and folded to press on the upper end surface of the oil seal assembly 16 and tightly press the guide sleeve assembly 15, so as to constrain and lock the connecting rod piston assembly and the working cylinder bottom valve assembly in the oil reservoir cylinder assembly.

[0108] The piston assembly 9 is not provided with an oil flow passage hole or a valve plate. The inner side of the bottom valve 4 is provided with a compression flow passage hole, and the bottom valve compression valve plate 4a is arranged at the lower end of the compression flow passage hole. The outer side of the bottom valve 4 is provided with a compensation flow passage hole, and the bottom valve compensation valve plate 4b is arranged at the upper end of the compensation flow passage hole. The bottom of the bottom valve body is provided with a bottom valve bottom hollow passage 4c. The upper end of the bottom valve body is connected with the working cylinder lower chamber 14c, and the lower end of the bottom valve body is connected with the oil reservoir chamber 12a.

[0109] As shown in Figure 2 、 Figure 4 、 Figure 5As shown, the bottom of the mounting seat 76 is provided with at least two first support bosses 76c, and at least two support bosses can provide stable support for the one-way valve assembly 710. The upper end faces of different first support bosses 76c are designed on the same plane, which can provide a mounting support surface for the one-way valve assembly 710. A first oil passage 76d is constructed between different first support bosses 76c, which can provide a passage for oil circulation. The middle and lower parts of the mounting seat 76 are provided with a mounting seat bottom inner hole surface 76a and a mounting seat inner threaded hole surface 76b. The inner hole surface 76a is used to construct an oil passage, and the inner thread on the inner threaded hole surface 76b is screwed with the outer thread of the electromagnetic valve assembly 75. The inner diameter of the mounting seat bottom inner hole surface 76a is larger than that of the mounting seat inner threaded hole surface 76b. The mounting seat 76 is attached to the oil storage cylinder 12 and fixed by welding.

[0110] As shown in Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 The one-way valve body 71 is provided with a one-way valve lower end limiting surface 71g, a connecting part 71h, a protruding part 71i, a one-way valve inner oil passage 71b, and a one-way valve outer oil passage 71f. The cover plate 72 is provided with a cover plate lower end surface 72e, a cover plate lower end inner hole 72d, and an inner top surface 72f provided with a positioning boss 72a. The inside of the positioning boss 72a is provided with a cover plate oil outlet hole. The one-way valve disc 71d is installed on the upper end surface of the one-way valve body 71. The elastic member upper end ring 711a of the elastic member 711 is matched with the shaft hole of the positioning boss 72a to form a combined assembly, which is then installed with the one-way valve body 71. The connecting part 71h is interference-fitted with the shaft hole of the cover plate lower end inner hole 72d. The cover plate lower end surface 72e is in contact with the protruding part 71i to achieve axial limiting.

[0111] The one-way valve lower end outer circular surface 71j is provided with a mounting groove, and a sealing member 71a is installed in the mounting groove. The one-way valve lower end outer circular surface 71j is matched with the shaft hole of the joint 13c, and fluid sealing is achieved by relying on the sealing member 71a.

[0112] The elastic member upper end ring 711a of the elastic member 711 is matched with the shaft hole of the positioning boss 72a to achieve radial positioning and is supported on the inner top surface 72f to achieve axial limiting. The elastic member lower end ring 711b is supported on the one-way valve disc 71d. The spring middle diameter of the elastic member upper end ring 711a is smaller than that of the elastic member lower end ring 711b. The one-way valve assembly 710 in this application is a complete and independent assembly, which can be assembled in advance and then installed in the mounting seat 76 at one time. Finally, the electromagnetic valve assembly 75 is assembled. This design can avoid the problem that the elastic member is difficult to be installed in the one-way valve inner hole in the existing scheme, which can reduce the assembly difficulty and improve the production and assembly efficiency.

[0113] The one-way valve assembly 710 is limited and fixed by the one-way valve lower end limiting surface 71g and the first support boss 76c, and is indirectly supported on the mounting seat 76. The electromagnetic valve upper end cover 75a of the electromagnetic valve assembly 75 is provided with an electromagnetic valve oil inlet hole 75b and an electromagnetic valve oil outlet hole 75c. The electromagnetic valve assembly 75 is fastened with the mounting seat 76 through threaded connection. The electromagnetic valve upper end cover 75a is attached to the upper end surface 72b of the cover plate to realize axial limiting and fluid sealing. The axial pre-tightening force generated by the threaded fastening of the electromagnetic valve assembly 75 is applied to the one-way valve assembly 710 and then to the first support boss 76c.

[0114] In the present application, the cover plate 72 and the one-way valve body 71 are interference fitted to form an assembly. The inner diameter of the mounting seat bottom inner hole surface 76a is larger than that of the mounting seat inner threaded hole surface 76b, so as to form a main oil passage 71c. The oil discharged from the electromagnetic valve oil outlet hole 75c can flow back to the oil storage cavity 12a through the main oil passage 71c. The mounting seat 76 has compact structure, is easy to manufacture and is convenient for popularization and application. The electromagnetic valve assembly 75 can be sealed by being connected with the one-way valve assembly 710. The electromagnetic valve assembly 75 can maintain the existing mature and stable standard interface structure. The double-valve shock absorber of the present application can use the existing electromagnetic valve assembly, and special electromagnetic valves do not need to be developed separately, thereby saving development cost.

[0115] During the rebound stroke, the piston assembly 9 moves towards the guide sleeve assembly 15, the volume of the upper working chamber 14b becomes smaller, and the oil in the upper working chamber 14b flows into the upper intermediate cylinder oil passage 13a through the upper working cylinder oil passage hole 14a, and then flows into the one-way valve inner oil passage hole 71b through the upper intermediate cylinder oil passage hole 13b. At this time, the internal chamber of the one-way valve assembly 710 is filled with high-pressure oil, which presses the one-way valve valve plate 71d tightly against the one-way valve body 71. Therefore, the high-pressure oil in the internal chamber does not flow into the oil storage cavity 12a through the one-way valve outer oil passage hole 71f. The high-pressure oil flows into the electromagnetic valve oil inlet hole 75b from the cover plate oil inlet hole 72c, and then flows into the electromagnetic valve assembly 75. After being throttled and adjusted by the electromagnetic valve assembly 75, the high-pressure oil flows out from the electromagnetic valve oil outlet hole 75c, and then flows into the oil storage cavity 12a through the main oil passage 71c.

[0116] The softness and hardness of the electromagnetic valve assembly 75 can be adjusted by adjusting the current, so as to adjust the rebound damping force. The movement of the piston assembly 9 towards the guide sleeve assembly 15 causes the volume of the lower working chamber 14c to become larger and the internal pressure to become lower. The oil storage cavity 12a is filled with gas with a certain pressure, which has a certain back pressure. The pressure difference causes the oil in the oil storage cavity 12a to push away the bottom valve compensation valve plate 4b, and then flows into the lower working chamber 14c through the bottom valve compensation valve. The rebound damping force is controlled and adjusted by the electromagnetic valve assembly 7.

[0117] During compression stroke, the piston assembly 9 moves towards the bottom valve 4, the volume of the lower cylinder chamber 14c becomes smaller, a part of the oil in the lower cylinder chamber 14c pushes away the bottom valve compression valve plate 4a to flow into the oil storage chamber 12a, a part of the oil flows into the lower intermediate cylinder oil flow passage 6c through the lower intermediate cylinder oil passage 14d, then flows into the lower intermediate cylinder joint 6b through the lower intermediate cylinder oil outlet 6a, and then enters the compression solenoid valve assembly 5, and after being throttled by the compression solenoid valve assembly 5, the oil flows into the oil storage chamber 12a, and the softness of the compression solenoid valve assembly 5 is adjusted by adjusting the current, so as to adjust the compression damping force. The movement of the piston assembly 9 towards the bottom valve 4 causes the volume of the upper cylinder chamber 14b to become larger, the pressure inside the upper cylinder chamber 14b is low, and the oil storage chamber 12a has a certain back pressure, which causes the oil in the oil storage chamber 12a to push away the one-way valve valve plate 71d, flow into the internal chamber of the one-way valve assembly 710 through the one-way valve outer oil passage 71f, flow into the upper intermediate cylinder oil passage 13a through the one-way valve inner oil passage 71b, and then flow into the upper intermediate cylinder oil passage 13b, and finally fill the increased volume of the upper cylinder chamber 14b with oil. The compression damping force is controlled and adjusted by the compression solenoid valve assembly 5.

[0118] The shock absorber provided with two solenoid valve assemblies, the one-way valve assembly 710 is arranged between the first support boss 76c and the solenoid valve assembly 75, and the one-way valve assembly 710 is at least indirectly supported on the mounting seat 76. During compression stroke, the oil lacking in the upper cylinder chamber 14b is supplemented by the one-way valve assembly 710 from the oil storage chamber 12a, and the oil discharged from the lower cylinder chamber 14c is controlled and adjusted by the compression solenoid valve assembly 5. During rebound stroke, the oil lacking in the lower cylinder chamber 14c is supplemented by the bottom valve compensation valve 4b from the oil storage chamber 12a, and the oil discharged from the upper cylinder chamber 14b is controlled and adjusted by the solenoid valve assembly 7. Therefore, the rebound and compression damping forces of the shock absorber can be completely separated and independently adjusted without affecting each other.

[0119] According to a fourth aspect of the present application, a vehicle is provided, which comprises the shock absorber described above.

[0120] It can be understood that one end of the elastic member 711 is connected with the cover plate 72, and the other end is connected with the one-way valve body 71, so that the elastic member 711, the cover plate 72 and the one-way valve body 71 form a one-way valve, and the integration of the one-way valve is improved. That is, by integrally assembling the elastic member 711 in the one-way valve, and then assembling the solenoid valve without separately assembling the spring and other elastic members 711, the assembly difficulty is reduced, and the production efficiency is improved.

[0121] In some examples, the vehicle can be a fuel automobile, a plug-in hybrid electric vehicle or a new energy vehicle, and the present application does not make specific limitation thereto.

[0122] In the description of the present application, the terms "first", "second", etc. are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0123] In the above embodiments, the description of each embodiment is focused on, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0124] The embodiments, implementation manners and related technical features of the present application can be combined or replaced with each other without conflict.

[0125] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application without departing from the technical solution content of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A one-way valve characterized by, The one-way valve comprises: a one-way valve body; a cover plate connected to the one-way valve body; a resilient member, a first end of the resilient member being connected to the cover plate, and a second end of the resilient member being connected to the one-way valve body.

2. The one-way valve of claim 1, wherein The cover plate is formed with a positioning boss, and the resilient member is sleeved on the positioning boss.

3. The one-way valve of claim 2, wherein, The resilient member abuts against an inner top surface of the cover plate.

4. The one-way valve according to any one of claims 1 to 3, characterized in that The one-way valve body is provided with a connecting portion, the connecting portion comprising a connecting segment and a protruding portion, the protruding portion protruding from the connecting segment, the cover plate being sleeved on the connecting segment and abutting against the protruding portion.

5. An electromagnetic valve assembly characterized by, The one-way valve is used in the electromagnetic valve assembly as claimed in any one of claims 1 to 4.

6. The solenoid valve assembly of claim 5, wherein, The electromagnetic valve assembly further comprises a mounting seat and an electromagnetic valve assembly, a first end of the one-way valve being connected to the electromagnetic valve assembly, and a second end of the one-way valve being connected to the mounting seat.

7. The solenoid valve assembly of claim 6, wherein, The mounting seat is formed with a mounting cavity, and at least one of the one-way valve and the electromagnetic valve assembly is mounted in the mounting cavity.

8. The solenoid valve assembly of claim 6, wherein, The mounting seat is formed with a first support boss, the first support boss being provided with a support surface facing the electromagnetic valve assembly, and the one-way valve abutting against the support surface.

9. The solenoid valve assembly of claim 8, wherein, The number of the first support bosses is at least two, and the support surfaces of different first support bosses are located on the same plane.

10. The solenoid valve assembly of claim 9, wherein, A first oil flow channel is formed between adjacent two first support bosses.

11. The solenoid valve assembly of claim 8, wherein, The first support boss is in a ring structure, and the first support boss is formed with a groove, a groove wall of the groove and the one-way valve surrounding to form a second oil flow channel.

12. The solenoid valve assembly according to any one of claims 6 to 11, characterized in that The one-way valve is formed with a second support boss, the mounting seat is formed with an extension portion, the extension portion protruding from an inner wall surface of the mounting seat, and the second support boss abutting against the extension portion.

13. The solenoid valve assembly of claim 12, wherein, The number of the second support bosses is at least two, and a third oil flow channel is formed between adjacent two second support bosses.

14. The solenoid valve assembly according to any one of claims 6 to 11, characterized in that The inner wall surface of the mounting seat and the one-way valve are arranged in a spaced manner, so that a main oil flow channel is formed between the one-way valve and the inner wall surface of the mounting seat.

15. A damper characterized by The electromagnetic valve assembly is used in a shock absorber as claimed in any one of claims 5 to 14, and the electromagnetic valve assembly is connected to the shock absorber.

16. The damper of claim 15, wherein The shock absorber is formed with a connector, the connector being provided with a connecting cavity, and the one-way valve is inserted into the connecting cavity and is in sealed connection with the connector.

17. A vehicle characterized by comprising: The shock absorber is as claimed in claim 15 or 16.

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