Restoration valve, damper mechanism and shock absorber

Abstract

The utility model provides a rebuilt valve, a damper mechanism and a shock absorber. The rebuilt valve comprises a sleeve part, an upper rebuilt flow valve plate and a lower rebuilt flow valve plate. The sleeve portion includes a cylindrical portion and a valve seat including a first flow hole and a second flow hole. The upper return flow valve plate is located on one side of the valve seat and in the cylindrical portion, and is configured to cover the first flow hole. The lower return flow plate is located on the opposite side of the valve seat from the upper return flow plate, and is configured to cover the second flow hole. And the hollow part of the upper recovery circulation valve plate is exposed out of the second circulation hole to form a first circulation channel from the inside of the recovery valve to the outside of the recovery valve. The upper recovery circulation valve plate comprises a first positioning groove, the recovery valve further comprises a positioning structure, and the positioning structure is arranged in the first positioning groove so as to circumferentially position the upper recovery circulation valve plate relative to the valve seat. Due to the arrangement of the positioning structure, the first circulation channel does not change, and positioning and assembling of the upper recovery circulation valve plate are facilitated.

Description

Technical Field

[0001] The embodiments of the utility model relate to a restoring valve for a damper mechanism, the damper mechanism and a shock absorber comprising the damper mechanism. Background Art

[0002] Adjustable dampers in automotive suspension systems are a technology designed to improve vehicle driving stability and ride comfort. In the past, automotive suspension systems mainly used a combination of mechanical springs and shock absorbers to reduce vehicle body vibrations and bumps. However, this traditional suspension system can only provide a fixed damping force and cannot adapt to the needs of different road conditions and driving styles, making it difficult to achieve optimal suspension performance. To solve this problem, automakers began to use adjustable damper technology, which can adjust the damping force through electronic or mechanical control to adapt to different driving conditions. Adjustable dampers can be adjusted according to parameters such as vehicle speed, vehicle load, road conditions and driving mode, thereby providing a smoother and more comfortable ride.

[0003] There are several types of adjustable damper technology on the market, including active and semi-active adjustable dampers. Active adjustable dampers can adjust the damping force in real time based on input from vehicle sensors and control systems to maximize the performance of the suspension system. Semi-active adjustable dampers require fewer sensors and computing power and are more affordable, but their performance may be limited. Adjustable dampers can include restoring valves, and the damping characteristics of the restoring valves also have a significant impact on the entire adjustable damper, which in turn affects the performance of the shock absorber including the adjustable damper. Utility Model Content

[0004] The embodiment of the utility model provides a recovery valve, a damper mechanism and a shock absorber. Through the cooperation of the positioning structure and the first positioning groove of the upper recovery circulation valve plate, not only can the upper recovery circulation valve plate not rotate relative to the valve seat along the circumferential direction of the upper recovery circulation valve plate, but also the first circulation channel will not change, thereby ensuring the stability of the performance of the recovery valve. Moreover, during the installation process, the positioning structure can be used to position the upper recovery circulation valve plate, thereby improving the installation efficiency of the upper recovery circulation valve plate, saving the installation time of the upper recovery circulation valve plate, and ensuring the installation consistency of the upper recovery circulation valve plate, thereby ensuring that the first circulation channel will not have inconsistencies due to assembly problems, thereby ensuring the stability of the performance of the recovery valve.

[0005] At least one embodiment of the present utility model provides a recovery valve, comprising: a sleeve portion, comprising a cylindrical portion and a valve seat at an opening connected to one end of the cylindrical portion, the valve seat comprising a first flow hole and a second flow hole penetrating the valve seat, an upper recovery flow valve plate, which is located on one side of the valve seat and in the cylindrical portion in the extension direction of the first flow hole and the second flow hole, and is configured to cover the first flow hole, a lower recovery flow valve plate, which is located on the side of the valve seat opposite to the upper recovery flow valve plate, and is configured to cover the second flow hole, the upper recovery flow valve plate comprises a hollow portion, and the second flow hole is exposed through the hollow portion to form a first flow channel from the inside of the recovery valve to the outside of the recovery valve, the upper recovery flow valve plate comprises a first positioning groove, and the recovery valve also comprises a positioning structure, at least a part of the positioning structure is located in the first positioning groove to enable the upper recovery flow valve plate to be positioned relative to the valve seat along the circumferential direction of the upper recovery flow valve plate.

[0006] For example, in the recovery valve provided in one embodiment of the utility model, the valve seat includes a second positioning groove arranged corresponding to the first positioning groove, and at least a part of the positioning structure is arranged in the first positioning groove and the second positioning groove to circumferentially position the upper recovery circulation valve plate relative to the valve seat.

[0007] For example, in the restoration valve provided in one embodiment of the utility model, the upper restoration circulation valve plate includes a first through hole located in the middle, the valve seat includes a second through hole arranged corresponding to the first through hole, the lower restoration circulation valve plate includes a third through hole arranged corresponding to the first through hole and the second through hole, the restoration valve also includes a columnar structure passing through the first through hole, the second through hole and the third through hole, the first positioning groove is located on the side wall of the first through hole, and the second positioning groove is located on the side wall of the second through hole.

[0008] For example, in the recovery valve provided in one embodiment of the present utility model, the positioning structure is arranged on the columnar structure, or the positioning structure and the columnar structure are integrally formed.

[0009] For example, in the recovery valve provided in one embodiment of the present utility model, it also includes a clamping ring sleeved on the columnar structure, and the clamping ring includes the positioning structure.

[0010] For example, in the recovery valve provided in one embodiment of the present invention, the positioning structure is arranged on the valve seat, or the positioning structure and the valve seat are integrally formed.

[0011] For example, in the restoration valve provided in one embodiment of the utility model, the opening of the first circulation hole close to the upper restoration circulation valve plate includes a first flange, the first flange protrudes from the valve seat toward the upper restoration circulation valve plate and supports the upper restoration circulation valve plate, and a first intercepting groove recessed toward the valve seat is provided on the side wall of the first flange close to the upper restoration circulation valve plate, and the first intercepting groove is connected to the first circulation hole to form a first intercepting channel.

[0012] For example, in the restoration valve provided in one embodiment of the utility model, the upper restoration circulation valve plate includes a plurality of first sub-plate structures stacked along the extension direction of the first circulation hole and the second circulation hole, and a second intercepting groove is provided on the outer peripheral wall of the first sub-plate structure closest to the valve seat among the plurality of first sub-plate structures, and the second intercepting groove is connected to the first circulation hole to form a second intercepting channel.

[0013] For example, in the restoration valve provided in one embodiment of the utility model, the opening of the second flow hole near the lower restoration flow valve plate includes a second flange, the second flange protrudes from the valve seat toward the lower restoration flow valve plate and supports the lower restoration flow valve plate, and a third intercepting groove recessed toward the valve seat is provided on the side wall of the second flange near the lower restoration flow valve plate, and the third intercepting groove is connected to the second flow hole to form a third intercepting channel.

[0014] For example, in the recovery valve provided in one embodiment of the utility model, the lower recovery circulation valve plate includes a third positioning groove arranged corresponding to the second positioning groove, and at least part of the positioning structure is also located in the third positioning groove to enable the lower recovery circulation valve plate to be positioned relative to the valve seat along the circumferential direction of the lower recovery circulation valve plate.

[0015] For example, in the restoration valve provided in one embodiment of the utility model, the lower restoration circulation valve plate includes a plurality of second sub-plate structures stacked along the extension direction of the first circulation hole and the second circulation hole, and a fourth intercepting groove is provided on the outer peripheral wall of the second sub-plate structure closest to the valve seat among the plurality of second sub-plate structures, and the fourth intercepting groove is connected with the second circulation hole to form a fourth intercepting channel.

[0016] At least one embodiment of the utility model provides a damper mechanism, comprising: any one of the above-mentioned restoring valves; and an adjustable damping valve structure connected to an end of the cylindrical portion opposite to the valve seat.

[0017] At least one embodiment of the utility model provides a shock absorber, comprising any of the above-mentioned damper mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present utility model, rather than limiting the present utility model.

[0019] Figure 1 A schematic cross-sectional structure diagram of a recovery valve provided in one embodiment of the utility model;

[0020] Figure 2 for Figure 1 An exploded schematic diagram of a recovery valve is shown;

[0021] Figure 3 for Figure 1 The schematic diagram of the structure of the sleeve portion and the upper recovery flow valve plate shown;

[0022] Figure 4 for Figure 1 A schematic structural diagram of the sleeve portion shown;

[0023] Figure 5 for Figure 1 A schematic structural diagram of the sleeve portion from another perspective shown;

[0024] Figure 6 An explosion schematic diagram of another recovery valve provided in one embodiment of the utility model;

[0025] Figure 7 for Figure 6 A schematic cross-sectional view of a local structure of a recovery valve shown in FIG.

[0026] Figure 8 A schematic diagram of a partial cross-sectional structure of another type of recovery valve provided in one embodiment of the utility model;

[0027] Fig. 9 for Figure 8 An exploded schematic diagram of a recovery valve is shown;

[0028] Fig.10 A schematic cross-sectional structure diagram of another recovery valve provided in one embodiment of the utility model;

[0029] Fig.11 for Fig.10 An exploded schematic diagram of a recovery valve is shown;

[0030] Fig.12 A schematic diagram of a partial cross-sectional structure of another type of recovery valve provided in one embodiment of the utility model;

[0031] Fig.13 is a schematic cross-sectional structure diagram of a damper mechanism according to an embodiment of the utility model; and

[0032] Fig.14A schematic diagram of a shock absorber provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0035] Unless otherwise defined, the features such as "parallel", "perpendicular" and "same" used in the embodiments of the present invention include the situations of "parallel", "perpendicular", "same" in a strict sense, as well as the situations of "approximately parallel", "approximately perpendicular", "approximately the same" and the like that contain a certain error. For example, the above-mentioned "approximately" may indicate that the difference of the compared objects is within 10% or 5% of the average value of the compared objects. When the number of a component or element is not specifically indicated in the following of the embodiments of the present invention, it means that the component or element may be one or more, or may be understood as at least one. "At least one" means one or more, and "more than one" means at least two.

[0036] The embodiment of the utility model provides a recovery valve, a damper mechanism and a shock absorber. The recovery valve includes a sleeve portion, an upper recovery circulation valve plate and a lower recovery circulation valve plate. The sleeve portion includes a cylindrical portion and a valve seat at an opening connected to one end of the cylindrical portion, and the valve seat includes a first flow hole and a second flow hole that penetrate the valve seat. In the extension direction of the first flow hole and the second flow hole, the upper recovery circulation valve plate is located on one side of the valve seat and in the cylindrical portion, and is configured to cover the first flow hole. The lower recovery circulation valve plate is located on the side of the valve seat opposite to the upper recovery circulation valve plate, and is configured to cover the second flow hole. The upper recovery circulation valve plate includes a hollow portion, and the second flow hole is exposed through the hollow portion to form a first flow channel from the inside of the recovery valve to the outside of the recovery valve. The upper recovery circulation valve plate includes a first positioning groove, and the recovery valve also includes a positioning structure, which is arranged in the first positioning groove to circumferentially position the upper recovery circulation valve plate relative to the valve seat.

[0037] In the recovery valve provided by the embodiment of the utility model, the hollow part of the upper recovery circulation valve plate exposes the second flow hole to form a first flow channel from the inside of the recovery valve to the outside of the recovery valve. Through the cooperation of the positioning structure and the first positioning groove of the upper recovery circulation valve plate, the upper recovery circulation valve plate can be positioned relative to the valve seat along the circumference of the upper recovery circulation valve plate, the upper recovery circulation valve plate will not rotate relative to the valve seat along the circumference of the upper recovery circulation valve plate, and the first flow channel formed by the hollow part of the upper recovery circulation valve plate and the second flow hole will not change due to the circumferential rotation between the upper recovery circulation valve plate and the valve seat, thereby ensuring that the first flow channel will not change, and ensuring the stability of the performance of the recovery valve.

[0038] In the recovery valve provided in the embodiment of the utility model, the first positioning groove of the upper recovery circulation valve plate cooperates with the positioning structure, which can also facilitate the installation of the upper recovery circulation valve plate. When installing the upper recovery circulation valve plate, it is necessary to align the hollow part of the upper recovery circulation valve plate with the second circulation hole to expose the second circulation hole, which requires the upper recovery circulation valve plate to be positioned when installing the upper recovery circulation valve plate. When installing the upper recovery circulation valve plate, the first positioning groove of the upper recovery circulation valve plate cooperates with the positioning structure to achieve the positioning of the upper recovery circulation valve plate, thereby ensuring that the upper recovery circulation valve plate is installed in place, which not only improves the installation efficiency of the upper recovery circulation valve plate and saves the installation time of the upper recovery circulation valve plate, but also ensures the installation consistency of the upper recovery circulation valve plate, so that the first circulation channel will not have inconsistencies due to assembly problems, thereby ensuring the stability of the performance of the recovery valve.

[0039] The restoration valve, the damper mechanism and the shock absorber provided in the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

[0040] The embodiments of the utility model provide a restoring valve, a damper mechanism and a shock absorber. Figure 1 A schematic cross-sectional structure diagram of a recovery valve provided in one embodiment of the utility model; Figure 2 for Figure 1 The exploded view of the recovery valve is shown in FIG. Figure 1 and Figure 2 As shown, the reset valve 001 includes a sleeve portion 100, an upper reset circulation valve plate 210 and a lower reset circulation valve plate 220. The sleeve portion 100 includes a cylindrical portion 110 and a valve seat 120 connected to an opening at one end of the cylindrical portion 110, and the valve seat 120 includes a first flow hole 121 and a second flow hole 122 that penetrate the valve seat 120. For example, the first flow hole 121 is at least a part of a flow channel for a fluid to flow from the outside of the reset valve 001 to the inside of the reset valve 001. The second flow hole 122 is at least a part of a flow channel for a fluid to flow from the inside of the reset valve 001 to the outside of the reset valve 001. For example, the portion surrounded by the cylindrical portion 110 can be referred to as the inside of the reset valve 001, and the side of the valve seat 120 opposite to the cylindrical portion 110 can be referred to as the outside of the reset valve 001.

[0041] In the extending direction of the first flow hole 121 and the second flow hole 122, the upper return flow valve plate 210 is located on one side of the valve seat 120 and in the cylindrical portion 110, and is configured to cover the first flow hole 121. The lower return flow valve plate 220 is located on the side of the valve seat 120 opposite to the upper return flow valve plate 210, and is configured to cover the second flow hole 122.

[0042] For example, Figure 1 As shown, the extending direction of the first flow hole 121 and the second flow hole 122 is the up-down direction in the figure, which is substantially parallel to the axial direction of the cylindrical portion 110. However, the embodiment of the present invention is not limited thereto.

[0043] For example, Figure 1As shown, the upper recovery circulation valve plate 210 is arranged on the upper side of the valve seat 120, and the lower recovery circulation valve plate 220 is arranged on the lower side of the valve seat 120, and the two are arranged on opposite sides of the valve seat 120. The upper recovery circulation valve plate 210 and the lower recovery circulation valve plate 220 are valve plates on the circulation channel from the outside to the inside and the circulation channel from the inside to the outside, respectively. It should be noted that the upper recovery circulation valve plate 210 covers the first circulation hole 121 and the lower recovery circulation valve plate 220 covers the second circulation hole 122, which means that the corresponding valve plate can cover the opening of the corresponding circulation hole, and can be opened due to fluid circulation during the operation of the recovery valve 001, thereby opening the corresponding circulation path. For example, the upper restoration circulation valve disc 210 covers the upper opening of the first circulation hole 121, which prevents the fluid from flowing into the first circulation hole 121 from the upper side of the valve seat 120. However, when the fluid flows from the lower side of the valve seat 120 through the first circulation hole 121 to the upper restoration circulation valve disc 210, as shown in the channel P1 in the figure, the upper restoration circulation valve disc 210 can be pressed open by pressure, so that the fluid flows into the interior of the restoration valve 001. Similarly, the lower restoration circulation valve disc 220 covers the lower opening of the second circulation hole 122, which prevents the fluid from flowing into the second circulation hole 122 from the lower side of the valve seat 120. However, when the fluid flows from the upper side of the valve seat 120 through the second circulation hole 122 to the lower restoration circulation valve disc 220, the lower restoration circulation valve disc 220 can be pressed open by pressure, so that the fluid flows out to the outside of the restoration valve 001.

[0044] The upper restoration circulation valve plate 210 includes a hollow portion 211 . When the upper restoration circulation valve plate 210 covers the valve seat 120 , the hollow portion 211 can expose the second circulation hole 122 to form a first circulation channel 1000 from the inside of the restoration valve 001 to the outside of the restoration valve 001 .

[0045] Figure 2 The schematic diagram shows that the upper recovery circulation valve sheet 210 includes three first sub-sheet structures 214 stacked along the extension direction of the first circulation hole 121 and the second circulation hole 122, each of the first sub-sheet structures 214 has a plurality of sub-hollow parts 2141, and the hollow part 211 of the upper recovery circulation valve sheet 210 includes the sub-hollow parts 2141 on the first sub-sheet structure 214, and the sub-hollow parts 2141 are arranged corresponding to the second circulation hole 122 to expose the second circulation hole 122. However, the embodiment of the utility model does not limit the structure of the upper recovery circulation valve sheet 210. For example, the upper recovery circulation valve sheet 210 can have only one first sub-sheet structure 214 or other number of first sub-sheet structures 214. The embodiment of the utility model does not limit the number and shape of the sub-hollow parts 2141.

[0046] For example, Figure 1 and Figure 2As shown, in the internal space surrounded by the cylindrical portion 110, the fluid flows into the second flow hole 122 through the hollow portion 211 of the upper recovery flow valve plate 210, and at the lower end of the second flow hole 122, the lower recovery flow valve plate 220 covering the lower end opening of the second flow hole 122 is pressed open under the pressure of the fluid, so that the fluid flows from the inside to the outside of the recovery valve 001. For example, the first flow channel 1000 is a first flow path from the inside to the outside.

[0047] For example, the lower recovery circulation valve plate 220 can be warped under the action of fluid pressure so that the corresponding flow path is opened or closed. For example, the lower recovery circulation valve plate 220 is made of an elastic plate-like material, and the lower recovery circulation valve plate 220 is a plate-like spring structure. For example, the lower recovery circulation valve plate 220 can move along the central axis of the lower recovery circulation valve plate 220 under the action of fluid pressure so that the corresponding flow path is opened or closed. For example, a spring can be provided on the side of the lower recovery circulation valve plate 220 away from the valve seat 120, and the fluid pressure can overcome the elastic force of the spring to move the lower recovery circulation valve plate 220 along the central axis of the lower recovery circulation valve plate 220. The embodiment of the utility model does not limit the material, structure and opening method of the lower recovery circulation valve plate 220 under the action of fluid pressure.

[0048] Figure 3 for Figure 1 The schematic diagram of the structure of the sleeve portion and the upper recovery flow valve plate shown; Figure 4 for Figure 1 The schematic diagram of the structure of the sleeve part is shown in FIG. Figures 1 to 4 As shown, the upper restoration circulation valve plate 210 includes a first positioning groove 212, and the restoration valve 001 also includes a positioning structure 230, at least part of which is located in the first positioning groove 212 to position the upper restoration circulation valve plate 210 relative to the valve seat 120 along the circumferential direction of the upper restoration circulation valve plate 210. Figure 2 The first through hole 213 and the first positioning groove 212 are partially enlarged. For example, the circumferential positioning means that the rotation of the upper recovery circulation valve plate relative to the valve seat in the circumferential direction is restricted, that is, after the circumferential positioning, the upper recovery circulation valve plate is basically unable to rotate relative to the valve seat in the circumferential direction.

[0049] In the recovery valve 001 provided in the embodiment of the utility model, the hollow portion 211 of the upper recovery circulation valve plate 210 exposes the second flow hole 122 to form a first flow channel 1000 from the inside of the recovery valve 001 to the outside of the recovery valve 001. Through the cooperation of the positioning structure 230 and the first positioning groove 212 of the upper recovery circulation valve plate 210, the upper recovery circulation valve plate 210 can be positioned relative to the valve seat 120 along the circumferential direction of the upper recovery circulation valve plate 210, and the upper recovery circulation valve plate 210 will not rotate relative to the valve seat 120 along the circumferential direction of the upper recovery circulation valve plate 210. The first flow channel 1000 formed by the hollow portion 211 of the upper recovery circulation valve plate 210 and the second flow hole 122 will not change due to the circumferential rotation between the upper recovery circulation valve plate 210 and the valve seat 120, thereby ensuring that the first flow channel 1000 will not change, and ensuring the stability of the performance of the recovery valve 001.

[0050] In the recovery valve 001 provided in the embodiment of the utility model, the first positioning groove 212 of the upper recovery circulation valve plate 210 cooperates with the positioning structure 230, and can also facilitate the installation of the upper recovery circulation valve plate 210. When installing the upper recovery circulation valve plate 210, it is necessary to align the hollow portion 211 of the upper recovery circulation valve plate 210 with the second circulation hole 122 to expose the second circulation hole 122, which requires the upper recovery circulation valve plate 210 to be positioned when installing the upper recovery circulation valve plate 210. When installing the upper restoration circulation valve plate, the upper restoration circulation valve plate 210 can be positioned by cooperating with the first positioning groove 212 of the upper restoration circulation valve plate 210 and the positioning structure 230, thereby ensuring that the upper restoration circulation valve plate 210 is installed in place, which not only improves the installation efficiency of the upper restoration circulation valve plate 210 and saves the installation time of the upper restoration circulation valve plate 210, but also ensures the installation consistency of the upper restoration circulation valve plate 210, so that the first circulation channel 1000 will not have inconsistencies due to assembly problems, thereby ensuring the stability of the performance of the restoration valve 001.

[0051] For example, Figure 1 and Figure 2As shown, when the fluid flows from the lower side of the valve seat 120 through the first flow hole 121 to the upper recovery flow valve plate 210, as shown in the channel P1 in the figure, the upper recovery flow valve plate 210 can be pressed open by pressure, so that the fluid flows into the interior of the recovery valve 001. The upper recovery flow valve plate 210 can be warped under the action of the fluid pressure so that the corresponding flow path is opened or closed. For example, the upper recovery flow valve plate 210 is made of an elastic plate-like material, and the upper recovery flow valve plate 210 is a plate-like spring structure. For example, the upper recovery flow valve plate 210 can also move along the central axis of the upper recovery flow valve plate 210 under the action of the fluid pressure so that the corresponding flow path is opened or closed. For example, a spring may be provided on the side of the upper recovery circulation valve disc 210 away from the valve seat 120, and the fluid pressure may overcome the elastic force of the spring to enable the upper recovery circulation valve disc 210 to move along the central axis of the upper recovery circulation valve disc 210. At this time, the positioning structure is only used to limit the circumferential rotation between the upper recovery circulation valve disc and the valve seat, and will not limit the movement between the upper recovery circulation valve disc and the valve seat along the central axis. The embodiment of the utility model does not limit the material, structure, and opening method of the upper recovery circulation valve disc 210 under the action of fluid pressure.

[0052] In some examples, such as Figures 1 to 4 As shown, the valve seat 120 includes a second positioning groove 123 corresponding to the first positioning groove 212, and at least a portion of the positioning structure 230 is disposed in the first positioning groove 212 and the second positioning groove 123 to perform circumferential positioning of the upper recovery circulation valve plate 210 relative to the valve seat 120. By disposing at least a portion of the positioning structure 230 in the first positioning groove 212 and the second positioning groove 123, the upper recovery circulation valve plate 210 can be more simply and accurately positioned circumferentially.

[0053] In some examples, such as Figures 1 to 4As shown, the upper recovery circulation valve disc 210 includes a first through hole 213 located in the middle, the valve seat 120 includes a second through hole 124 arranged corresponding to the first through hole 213, and the lower recovery circulation valve disc 220 includes a third through hole 221 arranged corresponding to the first through hole 213 and the second through hole 124. The recovery valve 001 also includes a columnar structure 300 passing through the first through hole 213, the second through hole 124 and the third through hole 221, the first positioning groove 212 is located on the side wall of the first through hole 213, and the second positioning groove 123 is located on the side wall of the second through hole 124. On the one hand, the first positioning groove 212 is approximately located in the middle of the upper recovery circulation valve disc 210, and the second positioning groove 123 is approximately located in the middle of the valve seat 120, which can make the circumferential positioning of the upper recovery circulation valve disc 210 more stable. On the other hand, the first positioning groove 212 is located on the side wall of the first through hole 213, and the second positioning groove 123 is located on the side wall of the second through hole 124. Due to the existence of the through holes, the upper recovery flow valve plate 210 has a larger operating space during positioning and installation, which is convenient for positioning and installation.

[0054] For example, Figure 2 As shown, when the upper recovery circulation valve plate 210 includes a plurality of first sub-plate structures 214 , the first through hole 213 may be a central hole on the plurality of first sub-plate structures 214 . Figure 2 Only one first sub-slice structure 214 is marked schematically.

[0055] For example, Figure 2 As shown, the lower restoration circulation valve plate 220 includes a plurality of second sub-plate structures 223 stacked along the extension direction of the first circulation holes 121 and the second circulation holes 122 , and the third through hole 221 of the lower restoration circulation valve plate 220 may be a central hole on the plurality of first sub-plate structures 214 . Figure 2 The schematic diagram shows that the lower recovery circulation valve sheet 220 includes five second sub-sheet structures 223, and only one second sub-sheet structure 223 is schematically marked. The embodiment of the utility model does not limit the structure of the lower recovery circulation valve sheet 220. For example, the lower recovery circulation valve sheet 220 may have only one second sub-sheet structure 223 or other number of second sub-sheet structures 223.

[0056] In some examples, such as Figure 1 and Figure 2 As shown, the positioning structure 230 and the columnar structure 300 are integrally formed. Therefore, not only can the design and processing of the positioning structure 230 be simpler, but also a separate positioning structure 230 is not required, and the positioning structure 230 does not need to be separately installed, which saves the cost of parts and simplifies the installation process.

[0057] For example, the positioning structure 230 may also be a part disposed or installed on the columnar structure 300. For example, the columnar structure 300 has an opening, and part of the positioning structure 230 is inserted into the opening, and part of the positioning structure 230 is located in the first positioning groove 212.

[0058] For example, Figure 4 The sleeve portion 100 is schematically shown to include five first flow holes 121 and five second flow holes 122 arranged alternately in the circumferential direction. The embodiment of the utility model does not limit the number, arrangement, opening shape, etc. of the first flow holes 121 and the second flow holes 122.

[0059] In some examples, such as Figure 4 As shown, the opening of the first circulation hole 121 near the upper restoration circulation valve plate 210 includes a first flange 1211, and the first flange 1211 protrudes from the valve seat 120 toward the upper restoration circulation valve plate 210 and supports the upper restoration circulation valve plate 210. That is, when the upper restoration circulation valve plate 210 covers the first circulation hole 121, it can abut against the first flange 1211.

[0060] A first intercepting groove 1212 is provided on the side wall of the first flange 1211 near the upper recovery flow valve plate 210 and is recessed toward the valve seat 120. The first intercepting groove 1212 is connected to the first flow hole 121 to form a first intercepting channel. For example, the first intercepting groove 1212 penetrates the first flange 1211 in the radial direction of the first flow hole 121.

[0061] In this example, when the pressure of the fluid entering the interior of the recovery valve 001 from the outside of the recovery valve 001 along the channel P1 is relatively small, the small pressure cannot press open the upper recovery circulation valve plate 210 covering the first flange 1211. At this time, the fluid cannot circulate, and the damper mechanism where the recovery valve 001 is located may fail. By providing the first intercepting groove 1212 connected to the first circulation hole 121 on the first flange 1211, when the pressure of the fluid is relatively small, the fluid can also flow to the interior of the recovery valve 001 through the first circulation hole 121 and the first intercepting groove 1212, so that the fluid can circulate, ensuring that the damper mechanism can also achieve fluid circulation when the pressure of the fluid is relatively small.

[0062] Figure 4 It is schematically shown that a first flange 1211 includes two first intercepting grooves 1212 . However, the embodiment of the utility model does not limit the number of the first intercepting grooves 1212 , nor does it limit the distribution positions of the first intercepting grooves 1212 on the first flange 1211 .

[0063] Figure 5 for Figure 1 The schematic diagram of the structure of the sleeve part from another perspective is shown. Figure 5 As shown, the opening of the second flow hole 122 near the lower recovery flow valve plate 220 includes a second flange 1221, which protrudes from the valve seat 120 toward the lower recovery flow valve plate 220 and supports the lower recovery flow valve plate 220. The side wall of the second flange 1221 near the lower recovery flow valve plate 220 is provided with a third intercepting groove 1222 that is recessed toward the valve seat 120. The third intercepting groove 1222 is connected to the second flow hole 122 to form a third intercepting channel. For example, the third intercepting groove 1222 penetrates the second flange 1221 along the radial direction of the second flow hole 122.

[0064] In this example, when the pressure of the fluid entering the outside of the recovery valve 001 from the inside of the recovery valve 001 along the first circulation channel 1000 is relatively small, the small pressure cannot press open the lower recovery circulation valve plate 220 covering the second flange 1221. At this time, the fluid cannot flow, and the damper mechanism where the recovery valve 001 is located may fail. By providing the third intercepting groove 1222 connected to the second circulation hole 122 on the second flange 1221, when the pressure of the fluid is relatively small, the fluid can also flow to the outside of the recovery valve 001 through the second circulation hole 122 and the third intercepting groove 1222, so that the fluid can flow, ensuring that the damper mechanism can also achieve fluid circulation when the pressure of the fluid is relatively small.

[0065] Figure 5 The schematic diagram shows that a second flange 1221 surrounds a plurality of second flow holes 122, so as to facilitate structural arrangement and processing. The embodiment of the utility model does not limit this. For example, a separate second flange 1221 may be provided at the opening of each second flow hole 122 close to the lower recovery flow valve plate 220, which will not be described in detail here. The embodiment of the utility model does not limit the number of the third intercepting grooves 1222, nor does it limit the distribution position of the third intercepting grooves 1222 on the second flange 1221.

[0066] In some examples, such as Figure 1As shown, a gap 215 is provided between the edge of the upper recovery circulation valve plate 210 and the inner wall of the cylindrical portion 110. The outer peripheral edge of the upper recovery circulation valve plate 210 does not extend to the inner wall of the cylindrical portion 110, but a gap 215 is left between the outer peripheral edge and the inner wall of the cylindrical portion 110. In addition, this gap 215 can also be connected to the second flow hole 122 through the gap 216 between the upper recovery circulation valve plate 210 and the valve seat 120 to form a second flow channel 2000 from the inside of the recovery valve 001 to the outside of the recovery valve 001. By adding the second flow channel 2000, the flow channel from the inside to the outside can be increased, so that the fluid damping characteristics from the inside to the outside of the recovery valve 001 can be changed according to the actual needs of the product. Furthermore, an effective second circulation channel can be realized by only setting a small gap 215 between the upper restoration circulation valve plate 210 and the inner wall of the cylindrical portion 110 , which will not have much impact on the design of the upper restoration circulation valve plate 210 and other components of the restoration valve 001 .

[0067] For example, Figure 1 and Figure 4 As shown, a gap 216 between the upper restoration flow valve plate 210 and the valve seat 120 may be formed by the first flange 1211 .

[0068] Figure 6 An explosion schematic diagram of another recovery valve provided in one embodiment of the utility model; Figure 7 for Figure 6 The schematic diagram of the partial structural section of the recovery valve is shown in FIG. Figure 6 and Figure 7 As shown, the upper recovery circulation valve plate 210 includes a plurality of first sub-plate structures 214 stacked along the extension direction of the first circulation hole 121 and the second circulation hole 122. A second intercepting groove 2140 is provided on the outer peripheral wall of the first sub-plate structure 214 closest to the valve seat 120 among the plurality of first sub-plate structures 214. The second intercepting groove 2140 is connected to the first circulation hole 121 to form a second intercepting channel P2. The technical effect of the second intercepting groove 2140 and the second intercepting channel P2 is the same as that of the first intercepting groove 1212 and the first intercepting channel, and is used to realize the circulation of the fluid when the pressure of the fluid is relatively small, which will not be repeated here. In order to clearly show the second intercepting groove 2140 and the second intercepting channel P2, Figure 7 Only the first sub-piece structure 214 and the first flange 1211 closest to the valve seat 120 are shown.

[0069] Figure 6 The corresponding embodiments and Figure 1The difference between the corresponding embodiments is that the first flange 1211 in this example is not provided with the first intercepting groove 1212, but the second intercepting groove 2140 is provided on the peripheral wall of the first sub-sheet structure 214 closest to the valve seat 120. By providing the second intercepting groove 2140 on the peripheral wall of the first sub-sheet structure 214 closest to the valve seat 120, it is not necessary to provide the first intercepting groove 1212 on the first flange 1211, which can improve the versatility of the valve seat 120 on the one hand, and on the other hand, the second intercepting groove 2140 provided on the first sub-sheet structure 214 is simpler, more convenient and less costly in terms of structural design and manufacture.

[0070] In this example, by cooperating with the positioning structure 230 and the first positioning groove 212, the upper restoration circulation valve plate 210 can be circumferentially positioned relative to the valve seat 120, thereby achieving relative fixation of the positions of the second shut-off groove 2140 on the upper restoration circulation valve plate 210 and the first circulation hole 121 on the valve seat 120, so that the second shut-off channel P2 will not change due to the circumferential rotation of the upper restoration circulation valve plate 210, thereby ensuring the circulation of the fluid in the second shut-off channel P2.

[0071] Figure 6 The schematic diagram shows that five first intercepting grooves 1212 are arranged on the outer peripheral wall of the first sub-piece structure 214 closest to the valve seat 120. However, the embodiment of the utility model does not limit the number of the first intercepting grooves 1212, nor does it limit the distribution position of the first intercepting grooves 1212 on the outer peripheral wall of the first sub-piece structure 214.

[0072] Figure 8 A schematic diagram of a partial cross-sectional structure of another type of recovery valve provided in one embodiment of the utility model; Fig. 9 for Figure 8 The exploded view of the recovery valve is shown in FIG. Figure 8 and Fig. 9 As shown, the lower recovery circulation valve plate 220 also includes a third positioning groove 222 arranged corresponding to the second positioning groove 123, and at least a portion of the positioning structure 230 is also located in the third positioning groove 222 to position the lower recovery circulation valve plate 220 relative to the valve seat 120 along the circumferential direction of the lower recovery circulation valve plate 220.

[0073] In some examples, such as Figure 8 and Fig. 9 As shown, the second positioning groove 123 of the valve seat 120 penetrates the valve seat 120 along the central axis of the valve seat 120. The positioning structure 230 and the columnar structure 300 are integrally formed, and the positioning structure 230 extends along the second positioning groove 123 to the third positioning groove 222, so that at least part of the positioning structure 230 is still located in the third positioning groove 222, so that the lower recovery flow valve plate 220 can be circumferentially positioned. Fig. 9In the figure, only a first sub-piece structure 214 of the upper recovery circulation valve piece 210 is schematically marked, and only a second sub-piece structure 223 of the lower recovery circulation valve piece 220 is schematically marked.

[0074] In some examples, such as Fig. 9 As shown, the lower recovery circulation valve plate 220 includes a plurality of second sub-plate structures 223 stacked along the extending direction of the first circulation hole 121 and the second circulation hole 122, and a fourth intercepting groove 2230 is provided on the outer peripheral wall of the second sub-plate structure 223 closest to the valve seat 120 among the plurality of second sub-plate structures 223, and the fourth intercepting groove 2230 is connected with the second circulation hole 122 to form a fourth intercepting channel. The technical effect of the fourth intercepting groove 2230 and the fourth intercepting channel is the same as that of the third intercepting groove 1222 and the third intercepting channel, and is used to realize the circulation of the fluid when the pressure of the fluid is relatively small, and will not be repeated here.

[0075] In this example, through the cooperation of the positioning structure 230 and the third positioning groove 222, the lower restoration circulation valve plate 220 can be circumferentially positioned relative to the valve seat 120, thereby achieving the relative fixation of the positions of the fourth intercepting groove 2230 on the lower restoration circulation valve plate 220 and the second circulation hole 122 on the valve seat 120, so that the fourth intercepting channel will not change due to the circumferential rotation of the lower restoration circulation valve plate 220, thereby ensuring the circulation of the fluid in the fourth intercepting channel.

[0076] In this example, by providing a fourth intercepting groove 2230 on the outer peripheral wall of the second sub-piece structure 223 closest to the valve seat 120, there is no need to provide the third intercepting groove 1222 on the second flange 1221. On the one hand, the versatility of the valve seat 120 can be improved. On the other hand, the structural design and production of the fourth intercepting groove 2230 provided on the second sub-piece structure 223 are simpler, more convenient and less costly.

[0077] Fig. 9 The schematic diagram shows that five fourth intercepting grooves 2230 are arranged on the outer peripheral wall of the second sub-piece structure 223 closest to the valve seat 120. However, the embodiment of the utility model does not limit the number of the fourth intercepting grooves 2230, nor does it limit the distribution position of the fourth intercepting grooves 2230 on the outer peripheral wall of the second sub-piece structure 223.

[0078] Fig.10 A schematic cross-sectional structure diagram of another recovery valve provided in one embodiment of the utility model;

[0079] Fig.11 for Fig.10 The exploded view of the recovery valve is shown in FIG. Fig.10 and Fig.11As shown, the recovery valve 001 further includes a clamping ring 400 sleeved on the columnar structure 300 , and the clamping ring 400 includes a positioning structure 230 . Fig.10 The reset valve shown is Figure 1 The difference between the recovery valve shown is that Fig.10 The positioning structure 230 of the recovery valve shown is arranged on the clamp ring 400, and the positioning structure 230 does not need to be arranged on the columnar structure 300. Therefore, the structure of the columnar structure 300 does not need to be changed, and only an additional clamp ring 400 is needed to realize the circumferential positioning of the upper recovery circulation valve plate 210 relative to the valve seat 120, thereby improving the versatility of the parts of the columnar structure 300. In addition, the structural design, manufacture and installation of the clamp ring 400 are simple and convenient. Fig.11 It is schematically shown that the clamping ring 400 includes two positioning structures 230 , but the embodiment of the utility model does not limit the number, shape, and position of the positioning structures 230 on the clamping ring 400 .

[0080] For example, Fig.10 and Fig.11 As shown, the clamp ring 400 can be arranged on the side of the upper recovery circulation valve disc 210 away from the valve seat 120. The positioning structure 230 on the clamp ring 400 passes through the first positioning groove 212 of the upper recovery circulation valve disc 210 and is at least partially located in the second positioning groove 123 of the valve seat 120. Of course, the embodiment of the utility model is not limited to this. For example, the clamp ring 400 can also be located between the upper recovery circulation valve disc 210 and the valve seat 120. In this case, part of the positioning structure 230 is located in the first positioning groove 212, and part of the positioning structure 230 is located in the second positioning groove 123. For example, the clamp ring 400 can also be located on the side of the valve seat 120 away from the upper recovery circulation valve disc 210.

[0081] For example, as shown in the figure, the clamp ring 400 is closed in the circumferential direction of the clamp ring 400. Of course, the embodiment of the utility model is not limited to this, and the clamp ring 400 can also be open, thereby facilitating the installation of the clamp ring 400 on the columnar structure 300.

[0082] In this example, a clamping ring 400 may also be provided near the lower recovery circulation valve plate 220 to limit the circumferential rotation of the lower recovery circulation valve plate 220. Fig. 9 In the embodiment shown in the figure, a intercepting groove is provided on the first sub-sheet structure 214 of the lower recovery flow valve sheet 220 close to the valve seat 120. The specific structure and technical effect can be seen in FIG. Fig. 9 The embodiments shown will not be described in detail here.

[0083] Fig.12 This is a partial cross-sectional structural diagram of another type of recovery valve provided by an embodiment of the utility model. Fig.12As shown, the positioning structure 230 and the valve seat 120 of the reset valve 001 are integrally formed. Fig.12 The reset valve shown is Figure 1 The difference between the recovery valve shown is that Fig.12 The positioning structure 230 of the reset valve shown in the figure is integrally formed with the valve seat 120, instead of providing the positioning structure 230 on the columnar structure 300. Fig.12 The other structures of the reset valve 001 shown are the same as those described above and will not be described in detail here.

[0084] For example, Fig.12 As shown, the positioning structure 230 is a protruding structure protruding from the valve seat 120 toward the first positioning groove 212, thereby not only making the design and processing of the positioning structure 230 simpler, but also eliminating the need for a separate positioning structure 230 and eliminating the need for separate installation of the positioning structure 230, thereby saving parts costs and simplifying the installation process.

[0085] For example, the positioning structure 230 may also be a part disposed or installed on the valve seat 120 . For example, the valve seat 120 has an opening, and part of the positioning structure 230 is inserted into the opening, and part of the positioning structure 230 is located in the first positioning groove 212 .

[0086] Fig.13 FIG. 2 is a schematic cross-sectional view of a damper mechanism according to an embodiment of the present invention. Fig.13 As shown, the damper mechanism 600 includes Figure 1 The restoring valve 001 shown. In addition, the damper mechanism 600 also includes an adjustable damping valve structure 500, which is connected to the end of the cylindrical portion 110 of the restoring valve 001 opposite to the valve seat 120. The adjustable damping valve structure 500 may include a coil fixing seat, an electromagnetic coil, an iron core and rod assembly, a conical valve core assembly, an electromagnetic valve sleeve and other structures. Since the damper mechanism according to the embodiment of the utility model has no special restrictions on the adjustable damping valve structure, any suitable components can be selected or added or subtracted. Fig.13 The cross-sectional structural schematic diagram only schematically shows the general outline structure of the adjustable damping valve structure 500. For example, one end of the adjustable damping valve structure 500 is inserted into the above-mentioned cylindrical portion, the inserted portion has an external thread, and the cylindrical portion has an internal thread, and the adjustable damping valve structure 500 and the recovery valve 001 can be connected by threaded matching. Since the damper mechanism according to the embodiment of the utility model includes the recovery valve 001 of the above-mentioned embodiment, the technical effect that can be brought about by the recovery valve 001 can also be embodied in the damper mechanism, which will not be repeated here.

[0087] Fig.13The restoring valve 001 of the damper mechanism 600 shown may also be the restoring valve in any of the embodiments described above, which will not be described in detail here.

[0088] At least one embodiment of the utility model further provides a shock absorber. Fig.14 This is a schematic diagram of a shock absorber provided by an embodiment of the utility model. Fig.14 As shown, the shock absorber 700 includes the above-mentioned damper mechanism 600. Therefore, the shock absorber includes the above-mentioned damper mechanism, and therefore, the technical effect of the above-mentioned damper mechanism can also be embodied in the shock absorber, which will not be described in detail here.

[0089] There are a few points to note:

[0090] (1) In the drawings of the embodiments of the present invention, only the structures related to the embodiments of the present invention are involved, and other structures can refer to the general design.

[0091] (2) In the absence of conflict, the features of the same embodiment and different embodiments of the present invention may be combined with each other.

[0092] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A restoring valve for a damper mechanism, characterized in that: include: a sleeve portion, comprising a cylindrical portion and a valve seat connected to an opening at one end of the cylindrical portion, wherein the valve seat comprises a first flow hole and a second flow hole penetrating the valve seat, an upper restoration flow valve plate, which is located on one side of the valve seat in the extending direction of the first flow hole and the second flow hole and is located in the cylindrical portion, and is configured to cover the first flow hole, a lower restoring circulation valve plate, located on a side of the valve seat opposite to the upper restoring circulation valve plate, and configured to cover the second circulation hole, The upper recovery circulation valve plate includes a hollow portion, and the second circulation hole is exposed through the hollow portion to form a first circulation channel from the inside of the recovery valve to the outside of the recovery valve. The upper reset circulation valve plate includes a first positioning groove, and the reset valve also includes a positioning structure, at least part of which is located in the first positioning groove to position the upper reset circulation valve plate relative to the valve seat along the circumferential direction of the upper reset circulation valve plate.

2. The recovery valve according to claim 1, characterized in that: The valve seat includes a second positioning groove corresponding to the first positioning groove, and at least a portion of the positioning structure is disposed in the first positioning groove and the second positioning groove to circumferentially position the upper recovery flow valve plate relative to the valve seat.

3. The recovery valve according to claim 2, characterized in that: The upper recovery circulation valve plate includes a first through hole located in the middle, the valve seat includes a second through hole arranged corresponding to the first through hole, and the lower recovery circulation valve plate includes a third through hole arranged corresponding to the first through hole and the second through hole. The restoration valve further includes a columnar structure passing through the first through hole, the second through hole and the third through hole, the first positioning groove is located on a side wall of the first through hole, and the second positioning groove is located on a side wall of the second through hole.

4. The recovery valve according to claim 3, characterized in that: The positioning structure is arranged on the columnar structure, or the positioning structure and the columnar structure are integrally formed.

5. The recovery valve according to claim 3, characterized in that: It also includes a clamping ring sleeved on the columnar structure, and the clamping ring includes the positioning structure.

6. The recovery valve according to claim 1, characterized in that: The positioning structure is arranged on the valve seat, or the positioning structure and the valve seat are integrally formed.

7. The recovery valve according to any one of claims 1 to 6, characterized in that: The opening of the first circulation hole near the upper restoration circulation valve plate includes a first flange, the first flange protrudes from the valve seat toward the upper restoration circulation valve plate and supports the upper restoration circulation valve plate, and a first intercepting groove recessed toward the valve seat is provided on the side wall of the first flange near the upper restoration circulation valve plate, the first intercepting groove is connected to the first circulation hole to form a first intercepting channel.

8. The recovery valve according to any one of claims 1 to 6, characterized in that: The upper restoration circulation valve plate includes a plurality of first sub-plate structures stacked along the extension direction of the first circulation hole and the second circulation hole, and a second intercepting groove is arranged on the outer peripheral wall of the first sub-plate structure closest to the valve seat among the plurality of first sub-plate structures, and the second intercepting groove is connected to the first circulation hole to form a second intercepting channel.

9. The recovery valve according to any one of claims 1 to 6, characterized in that: The opening of the second circulation hole near the lower restoration circulation valve plate includes a second flange, the second flange protrudes from the valve seat toward the lower restoration circulation valve plate and supports the lower restoration circulation valve plate, and the side wall of the second flange near the lower restoration circulation valve plate is provided with a third intercepting groove recessed toward the valve seat, and the third intercepting groove is connected to the second circulation hole to form a third intercepting channel.

10. The recovery valve according to any one of claims 2 to 5, characterized in that: The lower recovery circulation valve plate includes a third positioning groove arranged corresponding to the second positioning groove, and at least a part of the positioning structure is also located in the third positioning groove to position the lower recovery circulation valve plate relative to the valve seat along the circumferential direction of the lower recovery circulation valve plate.

11. The recovery valve according to claim 10, characterized in that: The lower restoration circulation valve plate includes a plurality of second sub-plate structures stacked along the extension direction of the first circulation hole and the second circulation hole, and a fourth intercepting groove is arranged on the outer peripheral wall of the second sub-plate structure closest to the valve seat among the plurality of second sub-plate structures, and the fourth intercepting groove is connected with the second circulation hole to form a fourth intercepting channel.

12. A damper mechanism, characterized in that: include: The recovery valve according to any one of claims 1 to 11; as well as An adjustable damping valve structure is connected to an end of the cylindrical portion opposite to the valve seat.

13. A shock absorber, characterized in that: Comprising a damper mechanism according to claim 12.

Images