Damping adjusting mechanism, damping valve, shock absorber and adjusting system

Abstract

The utility model discloses a damping adjusting mechanism, a damping valve, a shock absorber and an adjusting system.The damping adjusting mechanism comprises a valve rod and a retainer, the valve rod is provided with a medium channel with the two ends open, the retainer is arranged and attached to one end of the valve rod, the retainer is provided with a circulation channel, or the circulation channel is arranged between the retainer and the valve rod, and the valve rod is provided with the medium channel. The circulation channel is used for communicating inside and outside and releasing pressure. The damping valve comprises the damping adjusting mechanism. The shock absorber comprises the damping adjusting mechanism or the damping valve. The adjusting system comprises the damping valve and / or the shock absorber. By using the damping adjusting mechanism, the circulation channel communicating the inside and the outside is constructed by the damping adjusting mechanism, the pressure difference in the working process is eliminated, the operation is more stable, the circulation channel can also be used for discharging impurities, and the service life is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of damping valve, concretely relates to a damping adjusting mechanism, damping valve, shock absorber and adjusting system. BACKGROUND

[0002] The damping valve is a kind of control valve that reaches the control pressure and throttling effect needed by controlling the pressure and flow of oil.In prior art, the damping valve has a valve cavity, and the valve core of the damping valve reciprocatingly slides in the valve cavity, and the valve core simultaneously separates the valve cavity into two mutually incommunicable parts.

[0003] For this, when the force of external power component reduces, the pressure difference on both sides of the valve core will cause the posture of the damping valve to be unstable, which affects the normal use of the damping valve.In addition, the sealing of the valve core causes the impurities between the two parts of the valve body to be unable to be effectively discharged, resulting in poor performance of the damping valve. SUMMARY

[0004] The utility model aims at providing a damping adjusting mechanism, damping valve, shock absorber and adjusting system to solve the above problems, specifically, the utility model realizes by the following technical scheme:

[0005] In the first aspect, the utility model provides a damping adjusting mechanism, including valve rod and retainer, the valve rod is equipped with two ends open medium channel, the retainer is set and clings to in one end of valve rod, and the retainer is equipped with flow channel, or, the retainer is equipped with flow channel between the retainer and valve rod, and flow channel is used to connect inside and outside and discharge pressure.

[0006] In a possible design, the retainer includes an outer convex part and a clamping part;

[0007] The outer convex part is located in the middle of the retainer and extends downward, and correspondingly, when the retainer is connected to the valve rod, an inner cavity of the medium channel is formed between the outer convex part and the valve rod;

[0008] The clamping part is annular and has an inner periphery surface for connecting the outer convex part and an outer periphery surface for connecting the valve rod, and correspondingly, the end of the valve rod is provided with a clamping groove matched with the clamping part.

[0009] In a possible design, the clamping part is provided with a first through hole, and the first through hole is used as the flow channel;

[0010] Or, the edge of the clamping part is warped, the outer surface of the clamping part is provided with an outer convex rib and / or the outer surface of the clamping part is provided with an inner groove, so that a first gap is formed between the clamping part and the clamping groove, and a second gap is formed between the outer periphery of the clamping part and the groove wall of the clamping groove, the first gap and the second gap are communicated and constitute the flow channel;

[0011] Alternatively, the snap-fit ​​portion is provided with at least one notch for use as a flow channel, the notch having two open surfaces that communicate with the outside and are opposite to each other, and one end of the notch is constructed to extend to the edge of the snap-fit ​​portion and communicate with the outside.

[0012] In one possible design, an intermediate frame is provided between the valve stem and the cage, and the intermediate frame has an additional channel connecting the flow passage.

[0013] In one possible design, the intermediate frame includes a center plate and an extension plate;

[0014] The center plate is provided with a second through hole for connecting the medium channel and the inner cavity;

[0015] Several extension plates are provided and spaced apart on the outer periphery of the central plate, and the gap between two adjacent extension plates is constructed as the additional channel.

[0016] In one possible design, the valve stem includes a stem body and an end cap, one end of which is connected to the end cap. Correspondingly, a medium passage extends from the stem body to the end cap, and the end cap is provided with a slot for connecting a retainer.

[0017] Secondly, this utility model provides a damping valve based on the aforementioned damping adjustment mechanism, including a valve core, wherein the valve core is selected from the aforementioned damping adjustment mechanism.

[0018] In one possible design, it also includes a valve housing, a valve cover, and a main valve body;

[0019] The valve body is a cylindrical structure that is closed at one end and open at the other end. The closed end of the valve body is provided with a third through hole that connects the inside and outside, and the open end of the valve body is connected to the valve cover.

[0020] The main valve body is mounted on the valve cover and inserted into the valve housing. A valve cavity is formed between the closed end of the main valve body and the valve housing. The valve core is slidably mounted on the valve cavity, and the rod of the valve core passes through the third through hole.

[0021] In one possible design, a drive component is provided outside the valve housing, and the output end of the drive component is connected to the rod of the valve core so that the valve core slides back and forth along the valve cavity.

[0022] Thirdly, this utility model provides a vibration damper, including the damping adjustment mechanism or the damping valve.

[0023] Fourthly, this utility model provides an adjustment system, including the damping valve and / or the shock absorber.

[0024] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0025] By using the damping adjustment mechanism, a flow channel connecting the inside and outside is constructed, eliminating pressure differences during operation and making the operation more stable. The flow channel can also be used to discharge impurities, effectively extending the service life. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of a damping adjustment mechanism with a first through hole.

[0028] Figure 2 A schematic diagram of a damping adjustment mechanism with a first gap and a second gap.

[0029] Figure 3 for Figure 2 A partially enlarged structural diagram.

[0030] Figure 4 A schematic diagram of a damping adjustment mechanism with a notch.

[0031] Figure 5 This is a schematic diagram of a cage with a notch.

[0032] Figure 6 A schematic diagram of a damping adjustment mechanism when an intermediate frame is provided.

[0033] Figure 7 This is a schematic diagram of the intermediate frame.

[0034] Figure 8 This is a schematic diagram of a damping valve.

[0035] The attached diagram shows the markings and corresponding component names:

[0036] 10. Valve stem; 101. Stem body; 102. End cap; 103. Medium passage; 104. Slot; 20. Retainer; 201. Outward protrusion; 202. Snap-fit ​​part; 203. Inner cavity; 204. First through hole; 205. First gap; 206. Second gap; 207. Notch; 30. Intermediate frame; 301. Center plate; 302. Outward extension plate; 303. Additional passage; 40. Valve housing; 50. Valve cover; 60. Main valve body; 70. Drive component. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0038] Example:

[0039] like Figures 1-8 As shown, a damping adjustment mechanism includes a valve stem 10 and a retainer 20. The valve stem 10 is provided with a medium channel 103 with open ends. The retainer 20 is disposed and abuts against one end of the valve stem 10. The retainer 20 is provided with a flow channel, or a flow channel is provided between the retainer 20 and the valve stem 10. The flow channel is used to connect the inside and outside and to release pressure.

[0040] In the damping adjustment mechanism, a flow channel is constructed to connect the inside and outside, allowing the two cavities separated by the retainer 20 to communicate. For example, in a damping valve equipped with the damping adjustment mechanism, the valve chamber is separated by the retainer 20, and the medium can flow between the two cavities through the flow channel. Based on this, during the reciprocating motion of the damping adjustment mechanism, the pressure in the two cavities remains equal, avoiding pressure differences and the resulting attitude changes, ensuring the stability of the damping valve's attitude, and ensuring stable and consistent performance of the damping valve.

[0041] Furthermore, for impurities in the cavity, such as dust and particles mixed in the medium, the impurities are also discharged along with the medium as the medium flows along the flow channel. This reduces the impurity content in the damping valve, especially avoiding the accumulation of impurities due to long-term use. This can reduce the wear of impurities on various components of the damping valve and minimize the impact of impurities on the operation of the damping valve, thereby improving the stability of the damping valve's performance.

[0042] For the damping adjustment mechanism, the valve stem 10 has two ends, one end of which is connected to the retainer 20, and the other end extends outward and is connected to the drive device. The drive device provides power and drives the valve stem 10 to slide back and forth along the cavity, and the retainer 20 slides with the valve stem 10. Accordingly, the valve stem 10 has two working positions: one is that the retainer 20 presses against the main valve body 60 of the damping valve, and the other is that the retainer 20 is disengaged from the main valve body 60 of the damping valve. The valve stem 10 controls the opening and closing of the damping valve by switching between the two working positions.

[0043] It is easy to understand that the damping adjustment mechanism can be used in damping valves or other suitable equipment such as shock absorbers, and this utility model does not impose any limitations on it.

[0044] In one possible implementation, the cage 20 includes an outward protrusion 201 and a snap-fit ​​portion 202;

[0045] The protrusion 201 is located in the middle of the retainer 20 and extends downward. Correspondingly, when the retainer 20 is connected to the valve stem 10, the protrusion 201 and the valve stem 10 form an inner cavity 203 that communicates with the medium channel 103.

[0046] The snap-fit ​​portion 202 is annular and has an inner peripheral surface for connecting the outer protrusion 201 and an outer peripheral surface for connecting the valve stem 10. Correspondingly, the end of the valve stem 10 is provided with a snap-fit ​​groove 104 adapted to the snap-fit ​​portion 202.

[0047] Based on the above design, the outer protrusion 201 cooperates with the valve stem 10 to form the inner cavity 203. When the retainer 20 presses against the main valve body 60 of the damping valve, the outer protrusion 201 not only achieves the pressing action, but its end can also be inserted into the main valve body 60 to improve the sealing effect. Simultaneously, the retainer 20 can be made of a material with a certain degree of elasticity, thus providing a buffering effect. Furthermore, the media channel 103, the inner cavity 203, the flow channel, and the valve cavity of the damping valve are sequentially connected, forming a passage for media flow, avoiding pressure differences on both sides of the retainer 20, and also facilitating the discharge of impurities.

[0048] The snap-fit ​​part 202 is used to connect the valve stem 10. Correspondingly, the valve stem 10 is provided with a matching snap-fit ​​groove 104. The snap-fit ​​part 202 can be inserted into the snap-fit ​​groove 104 to realize the connection between the valve stem 10 and the retainer 20.

[0049] In one possible implementation, such as Figure 1 As shown, the snap-fit ​​part 202 is provided with a first through hole 204, which serves as the flow channel;

[0050] Or, such as Figure 2 and Figure 3 As shown, the edge of the snap-fit ​​part 202 is warped, the outer surface of the snap-fit ​​part 202 is provided with an outward protrusion and / or the outer surface of the snap-fit ​​part 202 is provided with an inner groove, so that a first gap 205 is formed between the snap-fit ​​part 202 and the slot 104, and a second gap 206 is formed between the outer periphery of the snap-fit ​​part 202 and the groove wall of the slot 104. The first gap 205 and the second gap 206 are connected and constructed as a flow channel.

[0051] Or, such as Figure 4 and Figure 5 As shown, the snap-fit ​​portion 202 is provided with at least one notch 207 for use as a flow channel. The notch 207 has two open surfaces that communicate with the outside and are opposite to each other. One end of the notch 207 is configured to extend to the edge of the snap-fit ​​portion 202 and communicate with the outside.

[0052] Based on the above design scheme, if the connection between the snap-fit ​​part 202 and the slot 104 is tight and a certain sealing effect is achieved, then a first through hole 204 as a flow channel can be provided on the retainer 20; if there is a gap between the snap-fit ​​part 202 and the slot 104, and the medium can flow through the gap, then the gap can be used as a flow channel.

[0053] It is worth noting that the gap can be created in a variety of ways for the snap-fit ​​part 202, such as at least one of edge warping, outward protrusion, and inward groove, or any other suitable method can be used to create the gap.

[0054] Furthermore, under appropriate circumstances, such as when the medium flow rate requirement is large, a notch 207 can be provided on the snap-fit ​​part 202. At least one notch 207 can be provided, and the specific number can be selected according to the actual situation to meet the needs of use.

[0055] It is easy to understand that those skilled in the art can choose the form of the distribution channel according to the actual situation, which is flexible, convenient, and more practical.

[0056] In one possible implementation, an intermediate frame 30 is provided between the valve stem 10 and the retainer 20, and the intermediate frame 30 is provided with an additional channel 303 that connects to the flow channel.

[0057] Based on the above design, the intermediate frame 30 separates the valve stem 10 and the retainer 20, thereby reducing the need for additional machining of the retainer 20 and resulting in better and more stable performance of the retainer 20. Specifically: as follows: Figure 6 As shown, there is a second gap 206 between the outer periphery of the snap-fit ​​part 202 and the groove wall of the snap-fit ​​groove 104. At this time, the additional channel 303 on the intermediate frame 30 can form a flow channel by connecting the second gap 206. Alternatively, when the snap-fit ​​part 202 is provided with a first through hole 204, the additional channel 303 can connect to the first through hole 204.

[0058] Optionally, such as Figure 7 As shown, the intermediate frame 30 includes a center plate 301 and an outer extension plate 302;

[0059] The center plate 301 is provided with a second through hole for connecting the medium channel 103 and the inner cavity 203;

[0060] The extension plates 302 are provided in a plurality of spaced arrangement on the outer periphery of the center plate 301, and the gap between two adjacent extension plates 302 is constructed as the additional channel 303.

[0061] Based on the above design, the center plate 301 increases the flow rate of the medium through the design of the second through hole, avoiding the reduction of the flow rate of the medium due to the obstruction of the intermediate frame 30. The extension plate 302 is used to expand the volume of the intermediate frame 30, so that the intermediate frame 30 can be snapped into the slot 104, and the gap between adjacent extension plates 302 can be used as an additional channel 303, reducing processing.

[0062] In one possible implementation, the valve stem 10 includes a stem body 101 and an end cap 102, with one end of the stem body 101 connected to the end cap 102. Correspondingly, a medium passage 103 extends from the stem body 101 to the end cap 102, and the end cap 102 is provided with a slot 104 for connecting the retainer 20.

[0063] Based on the above design, the rod 101 can be constructed into any suitable shape. The end cap 102 enlarges the cross-sectional area of ​​the end of the valve stem 10, thereby facilitating the setting of the slot 104 and the connection of the retainer 20 and the intermediate frame 30. It is easy to understand that the shape of the end cap 102 is adapted to the shape of the valve cavity of the damping valve so that the valve stem 10 can slide smoothly back and forth in the damping valve.

[0064] This embodiment introduces a damping valve based on the aforementioned damping adjustment mechanism, such as... Figure 8 As shown, the damping valve includes a valve core, which is selected from the damping adjustment mechanism. Based on this, the damping valve, by using the damping adjustment mechanism, constructs a flow channel connecting the inside and outside, eliminating pressure differences during operation, making the operation of the damping valve more stable. The flow channel can also be used to discharge impurities, effectively extending the service life of the damping valve.

[0065] In one possible implementation, the damping valve further includes a valve housing 40, a valve cover 50, and a main valve body 60.

[0066] The valve housing 40 is constructed as a cylindrical structure with one end closed and the other end open. The closed end of the valve housing 40 is provided with a third through hole that connects the inside and outside. The open end of the valve housing 40 is connected to the valve cover 50.

[0067] The main valve body 60 is mounted on the valve cover 50 and inserted into the valve housing 40. A valve cavity is formed between the main valve body 60 and the closed end of the valve housing 40. The valve core is slidably mounted on the valve cavity, and the rod 101 of the valve core passes through the third through hole.

[0068] Based on the above design, one end of the valve housing 40 is connected to the valve cover 50, and the valve cover 50 is provided with the main valve body 60. In other words, the main valve body 60 is fixed on the valve housing 40 through the connection between the valve housing 40 and the valve cover 50. The valve housing 40 and the main valve body 60 cooperate to form a valve cavity. Correspondingly, the shape of the valve core and the valve cavity are adapted to each other to ensure that the valve core can slide back and forth along the valve cavity.

[0069] The other end of the valve housing 40 is provided with a valve core. Specifically, the valve core is selected from the damping adjustment mechanism. In the damping adjustment mechanism, the main body of the valve stem 10 passes through the third through hole, and the end of the valve stem 10 and the retainer 20 are slidably disposed in the valve cavity. The valve stem 10 can slide along the third through hole. Based on this, when the valve stem 10 moves to the limit position, either the retainer 20 presses against the main valve body 60, or the retainer 20 disengages from the main valve body 60 until it abuts against the closed end of the valve housing 40.

[0070] It is easy to understand that the outer surface of the valve housing 40 can be constructed into any suitable shape to adapt to different installation environments. The main valve body 60 can be constructed into any suitable shape.

[0071] In one possible implementation, a drive component 70 is provided outside the valve housing 40, and the output end of the drive component 70 is connected to the rod 101 of the valve core so that the valve core slides back and forth along the valve cavity.

[0072] Based on the above design, one end of the valve stem 10 is connected to the retainer 20 and located in the valve cavity, while the other end extends to the outside of the valve housing 40 and is connected to the drive component 70. The drive component 70 outputs power and drives the valve stem 10 to slide back and forth along the valve cavity, thereby realizing the automatic operation of the damping valve.

[0073] It is easy to understand that the drive component 70 can be any suitable existing equipment, and this utility model does not impose any restrictions on it.

[0074] This embodiment also introduces a vibration damper, which includes the aforementioned damping adjustment mechanism or the aforementioned damping valve. Based on this, the vibration damper can directly utilize the damping adjustment mechanism or the damping valve, offering flexibility, convenience, wider application range, and better practicality.

[0075] This embodiment also introduces an adjustment system, which includes the damping valve and / or the vibration damper. Based on the above design, the adjustment system can also include other suitable functional modules in addition to the damping valve and / or the vibration damper, making it more functional and able to meet different working requirements, thus improving its practicality. Furthermore, it is easy to understand that the functional modules can be any suitable existing equipment, offering a wide range of choices.

[0076] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A damping adjustment mechanism, characterized in that, Includes a valve stem (10) and a retainer (20). The valve stem (10) has a medium passage (103) with open ends. The retainer (20) is set and abuts against one end of the valve stem (10). The retainer (20) has a flow passage, or a flow passage is provided between the retainer (20) and the valve stem (10). The flow passage is used to connect the inside and outside and to relieve pressure.

2. The damping adjustment mechanism according to claim 1, characterized in that, The cage (20) includes an outward protrusion (201) and a snap-fit ​​portion (202); The protrusion (201) is located in the middle of the retainer (20) and extends downward. Accordingly, when the retainer (20) is connected to the valve stem (10), an inner cavity (203) for communicating medium channel (103) is formed between the protrusion (201) and the valve stem (10). The snap-fit ​​part (202) is annular and has an inner peripheral surface for connecting the protrusion (201) and an outer peripheral surface for connecting the valve stem (10). Correspondingly, the end of the valve stem (10) is provided with a slot (104) adapted to the snap-fit ​​part (202).

3. The damping adjustment mechanism according to claim 2, characterized in that, The snap-fit ​​part (202) is provided with a first through hole (204), which serves as the flow channel; Alternatively, the edge of the snap-fit ​​part (202) is warped, an external protrusion is provided on the outer surface of the snap-fit ​​part (202), and / or an internal groove is provided on the outer surface of the snap-fit ​​part (202), so that a first gap (205) is formed between the snap-fit ​​part (202) and the slot (104), and a second gap (206) is formed between the outer periphery of the snap-fit ​​part (202) and the groove wall of the slot (104), and the first gap (205) and the second gap (206) are connected and constructed as a flow channel; Alternatively, the snap-fit ​​portion (202) is provided with at least one notch (207) serving as a flow channel. The notch (207) has two open surfaces that communicate with the outside and are opposite to each other. One end of the notch (207) is configured to extend to the edge of the snap-fit ​​portion (202) and communicate with the outside.

4. The damping adjustment mechanism according to claim 3, characterized in that, An intermediate frame (30) is provided between the valve stem (10) and the retainer (20), and an additional channel (303) connecting the flow channel is provided on the intermediate frame (30).

5. The damping adjustment mechanism according to claim 4, characterized in that, The intermediate frame (30) includes a center plate (301) and an extension plate (302); The center plate (301) is provided with a second through hole for connecting the medium channel (103) and the inner cavity (203); The extension plates (302) are provided in a plurality of spaced arrangement on the outer periphery of the center plate (301), and the gap between two adjacent extension plates (302) is constructed as the additional channel (303).

6. The damping adjustment mechanism according to any one of claims 1-5, characterized in that, The valve stem (10) includes a stem body (101) and an end cap (102). One end of the stem body (101) is connected to the end cap (102). Correspondingly, a medium passage (103) extends from the stem body (101) to the end cap (102). The end cap (102) is provided with a slot (104) for connecting the retainer (20).

7. A damping valve based on the damping adjustment mechanism according to any one of claims 1-6, characterized in that, Includes a valve core, which is selected from the aforementioned damping adjustment mechanism.

8. The damping valve according to claim 7, characterized in that, It also includes a valve housing (40), a valve cover (50), and a main valve body (60); The valve housing (40) is constructed as a cylindrical structure with one end closed and the other end open. The closed end of the valve housing (40) is provided with a third through hole that connects the inside and outside. The open end of the valve housing (40) is connected to the valve cover (50). The main valve body (60) is mounted on the valve cover (50) and inserted into the valve housing (40). A valve cavity is formed between the main valve body (60) and the closed end of the valve housing (40). The valve core is slidably mounted on the valve cavity, and the rod (101) of the valve core passes through the third through hole.

9. A vibration damper, characterized in that, Includes the damping adjustment mechanism according to any one of claims 1-6, or the damping valve according to claim 7 or 8.

10. A regulating system, characterized in that, Includes the damping valve as described in claim 7 or 8 and / or the vibration damper as described in claim 9.

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