Regulating valve and shock absorber

Abstract

The utility model provides a regulating valve and a shock absorber, and the regulating valve comprises a valve body, a valve core and a valve cover, the valve body is provided with an oil passing port, a containing cavity communicated with the oil passing port is formed in the valve body, and an oil passing channel communicated with the containing cavity is formed in the side wall of the valve body; the valve element is movably arranged in the containing cavity, and the valve deck is arranged on the valve body. The valve deck is in transmission connection with the valve element and used for driving the valve element to move in the containing cavity under the action of external force so as to preliminarily adjust the conduction degree between the containing cavity and the oil passing opening. And a movable abutting part is arranged on the valve cover and used for driving the valve element to move in the containing cavity under the action of external force, so that the conduction degree is finely adjusted based on the preliminary adjustment. According to the regulating valve, the abutting part acts on the valve element, so that the valve element can accurately regulate and control the conduction degree between the containing cavity and the oil passing opening. According to the shock absorber, the shock absorption effect can be accurately adjusted based on the arrangement of the adjusting valve, and good use experience is achieved.

Description

Technical Field

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

[0002] Shock absorbers are an essential component in automobiles, primarily used to absorb and mitigate vibrations and impacts generated during driving to ensure vehicle stability and ride comfort. There are several types of shock absorbers, with hydraulic shock absorbers achieving shock absorption through the flow and compression of internal oil, which is regulated by a regulating valve.

[0003] When regulating the flow of oil, existing regulating valves often fail to move the valve core to the predetermined position accurately, resulting in deviations and inaccuracies in the adjustment of the shock absorber's damping effect, which cannot achieve the expected shock absorption effect and leads to a poor experience for the driver and passengers.

[0004] Based on this, the present invention hopes to propose a solution to solve the problems existing in the existing regulating valve and shock absorber. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a regulating valve and a shock absorber, and the specific technical solutions are as follows:

[0006] In a first aspect, the present invention provides a regulating valve, comprising: a valve body, a valve core and a valve cover;

[0007] The valve body has an oil port, an accommodating cavity communicating with the oil port is formed inside the valve body, and an oil passage communicating with the accommodating cavity is formed on the side wall of the valve body;

[0008] The valve core is movably disposed in the accommodating cavity, and the valve cover is disposed on the valve body; the valve cover is transmission-connected to the valve core and is used to drive the valve core to move in the accommodating cavity under the action of an external force, so as to preliminarily adjust the degree of conduction between the accommodating cavity and the oil passage port;

[0009] The valve cover is provided with a movable abutment portion, and the abutment portion is used to drive the valve core to move in the accommodating cavity under the action of an external force, so as to finely adjust the conduction degree based on the preliminary adjustment.

[0010] In a specific embodiment, the valve core has a first threaded portion, and the inner wall of the accommodating cavity has a second threaded portion, and the first threaded portion and the second threaded portion are threadedly connected to allow the valve core to be movably disposed in the accommodating cavity;

[0011] The abutting portion is used to press the valve core under the action of an external force, so as to adjust the virtual position between the first threaded portion and the second threaded portion and achieve fine adjustment of the conduction degree.

[0012] In a specific embodiment, a transmission member is provided at the end of the valve body away from the oil passage port, and a transmission groove is provided on the transmission member which passes through the axial direction of the valve core. The end of the valve core away from the oil passage port is embedded in the transmission groove, and the valve cover is transmission-connected to the transmission member. The valve cover is used to drive the transmission member and the valve core to rotate synchronously under the action of external force, so that the first threaded connection part and the second threaded connection part are threadedly engaged to realize the axial movement of the valve core; wherein, the abutting portion abuts against the valve core through the transmission groove.

[0013] In a specific embodiment, the cross-section of the transmission groove is polygonal, elliptical, semicircular, star-shaped or irregular.

[0014] In a specific embodiment, a boss is provided on the side of the valve cover facing the transmission member, and the boss is embedded in the transmission groove; the abutment portion is movably provided on the boss, and the abutment portion is exposed from the boss and abuts against the valve core through the transmission groove.

[0015] In a specific embodiment, the abutting portion has a first threaded portion, the inner wall of the boss has a second threaded portion, and the first threaded portion and the second threaded portion are threadedly connected so that the abutting portion is embedded in the boss.

[0016] In a specific embodiment, a fixing member is provided on the valve cover, and a groove is provided on a side of the transmission member facing the valve cover, and the valve cover is fixedly connected to the transmission member by embedding the fixing member into the groove.

[0017] In a specific embodiment, a blocking piece for limiting the transmission member is provided on the valve body, a limiting space is formed between the inner wall of the valve body and the blocking piece, and the transmission member is rotatably provided in the limiting space.

[0018] In a specific embodiment, the valve core has an adjustment portion at one end close to the oil passage port, and the outer diameter of the adjustment portion gradually decreases toward the oil passage port. The valve core is used to move under the action of external force and adjust the degree of conduction between the accommodating cavity and the oil passage port through the adjustment portion.

[0019] A second aspect of the present invention provides a shock absorber, comprising an outer cylinder, an intermediate cylinder, an inner cylinder, a piston rod, and a regulating valve as described in any one of the above embodiments;

[0020] The outer cylinder, the middle cylinder and the inner cylinder are sequentially arranged from outside to inside, the piston rod is arranged in the inner cylinder, the oil port of the regulating valve is connected with the middle cylinder, and the oil passage of the regulating valve is connected with the outer cylinder.

[0021] The utility model has at least the following beneficial effects:

[0022] The utility model provides a regulating valve and a shock absorber, wherein the regulating valve, based on the action of the abutting portion on the valve core, the valve core can finely adjust the degree of conduction between the accommodating cavity and the oil passage, thereby realizing accurate regulation of the oil passing amount.

[0023] Furthermore, the valve core can be threadedly connected to the first threaded portion and the second threaded portion, thereby being movably disposed in the accommodating chamber. The abutment portion presses against the valve core, thereby tightening the threaded connection between the first threaded portion and the second threaded portion, thereby reducing the gap between the first threaded portion and the second threaded portion, making the movement of the valve core in the accommodating chamber more precise, thereby achieving precise control of the degree of conduction between the accommodating chamber and the oil passage port.

[0024] The shock absorber of the utility model is based on the setting of the regulating valve, which can accurately adjust the amount of oil flowing between the middle cylinder and the outer cylinder, thereby adjusting the shock absorption effect, and has a good user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0026] Figure 1 This is a schematic cross-sectional view of the overall structure of the regulating valve of the present utility model;

[0027] Figure 2 This is a schematic diagram of the overall structure of the regulating valve of the present utility model;

[0028] Figure 3 This is an exploded schematic diagram of the overall structure of the regulating valve of the present invention from one perspective;

[0029] Figure 4 This is an exploded schematic diagram of the overall structure of the regulating valve of the present invention from another perspective;

[0030] Figure 5 This is a schematic cross-sectional view of the overall structure of the shock absorber of the present utility model;

[0031] Figure 6 for Figure 5 Detail of point A in the middle.

[0032] Reference numerals:

[0033] 1-valve body; 11-oil outlet; 12-accommodating chamber; 121-second threaded portion; 13-oil passage; 2-valve core; 21-first threaded portion; 22-adjusting portion; 3-valve cover; 31-abutting portion; 311-first threaded portion; 32-fixing member; 33-boss; 331-second threaded portion; 4-transmission member; 41-transmission groove; 42-groove; 5-blocking plate; 6-sealing ring; 7-outer cylinder; 8-middle cylinder; 9-inner cylinder. DETAILED DESCRIPTION

[0034] Various embodiments of the present invention will be described more fully below. The present invention can have various embodiments, and modifications and variations can be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather that the present invention should be construed to encompass all modifications, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0035] Hereinafter, the terms "include" or "may include" used in various embodiments of the present invention indicate the presence of disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. In addition, as used in various embodiments of the present invention, the terms "include", "have" and their cognates are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing, and should not be understood as first excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing or the possibility of adding one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0036] In various embodiments of the present invention, the expression "or" or "at least one of A or / and B" includes any or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A or / and B" may include A, may include B, or may include both A and B.

[0037] The expressions (such as "first", "second", etc.) used in the various embodiments of the present invention may modify the various components in the various embodiments, but may not limit the corresponding components. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used to distinguish one element from other elements. For example, the first user device and the second user device indicate different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of the present invention, the first element may be referred to as the second element, and similarly, the second element may also be referred to as the first element.

[0038] It should be noted that, in this utility model, unless otherwise specified or defined, terms such as "installation," "connection," and "fixation" should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0039] Please refer to Figures 1 to 4 The utility model provides a regulating valve, comprising: a valve body 1, a valve core 2 and a valve cover 3.

[0040] Specifically, the valve body 1 has an oil port 11, an accommodating cavity 12 connected to the oil port 11 is formed inside the valve body 1, and an oil passage 13 connected to the accommodating cavity 12 is further formed on the side wall of the valve body 1. The number of the oil passage 13 can be one or more.

[0041] The valve core 2 is movably disposed in the accommodating chamber 12, and the valve cover 3 is disposed on the valve body 1. The valve cover 3 is in driving connection with the valve core 2 and is used to drive the valve core 2 to move in the accommodating chamber 12 under the action of an external force to preliminarily adjust the degree of conduction between the accommodating chamber 12 and the oil port 11.

[0042] For example, please refer to Figure 1 The end of the valve core 2 close to the oil port 11 may have an adjusting portion 22, and the outer diameter of the adjusting portion 22 gradually decreases toward the oil port 11. The valve core 2 is used to move under the action of an external force, and to adjust the degree of conductivity between the accommodating chamber 12 and the oil port 11 through the adjusting portion 22. Specifically, the outer diameter of the end of the adjusting portion 22 away from the oil port 11 may be the same as the diameter of the oil port 11, so that the oil port 11 and the accommodating chamber 12 can be closed. In the closed state, the valve core 2 moves in the direction away from the oil port 11, and the oil port 11 and the accommodating chamber 12 become conductive, and the degree of conductivity gradually increases, and the amount of oil inlet gradually increases.

[0043] The valve cover 3 is provided with a movable abutment portion 31, which is used to drive the valve core 2 to move in the accommodating chamber 12 under the action of external force, so as to further fine-tune the degree of conduction between the accommodating chamber 12 and the oil port 11 based on the preliminary adjustment.

[0044] Specifically, the valve core 2 is driven to move in the accommodating chamber 12 by the valve cover 3. For example, the degree of conductivity between the accommodating chamber 12 and the oil port 11 can be adjusted to an oil flow rate per unit time of (a±x1) ml. The abutment portion 31 acts on the valve core 2 to further fine-tune the degree of conductivity. Based on (a±x1) ml, the flow rate can be further adjusted to (a±x2) ml, where x2 is less than x1, thereby achieving precise control of oil flow.

[0045] For example, when the regulating valve of the present invention is applied to the shock absorber of an automobile, it can be configured as follows: the initial adjustment of the oil flow rate is a±50ml, and the fine adjustment is a±10ml. When the regulating valve of the present invention is applied to the shock absorber of a motorcycle, it can be configured as follows: the initial adjustment of the oil flow rate is a±30ml, and the fine adjustment is a±5ml. When the regulating valve of the present invention is applied to the shock absorber of a scooter, it can be configured as follows: the initial adjustment of the oil flow rate is a±10ml, and the fine adjustment is a±2ml. The specific initial adjustment and fine adjustment values ​​of the oil flow rate can be set according to different types of shock absorbers and actual needs, and there is no specific limitation on this.

[0046] In one specific embodiment, the valve core 2 has a first threaded portion 21, and the inner wall of the accommodating chamber 12 has a second threaded portion 121. The first threaded portion 21 and the second threaded portion 121 are threadedly connected to each other, so that the valve core 2 is movably disposed in the accommodating chamber 12. In this embodiment, the abutment portion 31 is used to squeeze the valve core 2 under the action of an external force to adjust the virtual position between the first threaded portion 21 and the second threaded portion 121, thereby achieving fine adjustment of the conductance.

[0047] Understandably, in this embodiment, when the valve core 2 moves within the accommodating chamber 12, its first threaded portion 21 will threadably engage with the second threaded portion 121. However, due to the matching of the threads, there will be a gap. In this embodiment, the abutment portion 31 is pressed against the valve core 2, which can make the threaded connection between the first threaded portion 21 and the second threaded portion 121 tighter, thereby reducing the gap between the first threaded portion 21 and the second threaded portion 121. This makes the movement of the valve core 2 within the accommodating chamber 12 more precise, thereby achieving precise control of the degree of conduction between the accommodating chamber 12 and the oil passage 11.

[0048] In addition, the abutment portion 31 can be movably arranged on the valve cover 3, so that the abutment portion 31 can be moved relative to the valve cover 3 according to actual needs to adjust the degree of squeezing of the abutment portion 31 on the valve core 2, and then adjust the tightness of the threaded fit between the first threaded portion 21 and the second threaded portion 121, which has good flexibility.

[0049] In a specific embodiment, a transmission member 4 may be provided at the end of the valve body 1 away from the oil passage port 11. The transmission member 4 is provided with a transmission groove 41 extending axially through the valve core 2. The end of the valve core 2 away from the oil passage port 11 is embedded in the transmission groove 41. The valve cover 3 is connected to the transmission member 4. The valve cover 3 is used to drive the transmission member 4 and the valve core 2 to rotate synchronously under the action of an external force, so that the first threaded portion 21 and the second threaded portion 121 are threadedly engaged to achieve axial movement of the valve core 2. The abutment portion 31 abuts the valve core 2 through the transmission groove 41.

[0050] Optionally, the cross section of the transmission groove 41 may be a non-circular shape such as a polygon, an ellipse, a semicircle, a star or an irregular shape.

[0051] In this embodiment, the transmission member 4 may be fixedly connected to the valve body 1. This fixed connection means that the transmission member 4 and the valve body 1 can move relative to each other, but their relative position remains unchanged or can only change slightly. For example, the valve body 1 may be provided with a blocking plate 5 for limiting the position of the transmission member 4. A limiting space is formed between the inner wall of the valve body 1 and the blocking plate 5, and the transmission member 4 is rotatably disposed within this limiting space. Specifically, the transmission member 4 can rotate about the axial direction of the valve core 2.

[0052] In one embodiment, a boss 33 may be provided on the side of the valve cover 3 facing the transmission member 4. The boss 33 is embedded in the transmission groove 41. Therefore, when the valve cover 3 rotates, the boss 33 engages with the transmission groove 41, thereby driving the rotation of the transmission member 4. Furthermore, the abutment portion 31 is movably provided on the boss 33, and the abutment portion 31 is exposed from the boss 33 and abuts the valve core 2 through the transmission groove 41.

[0053] For example, the abutment portion 31 may have a first threaded portion 311, and the inner wall of the boss 33 may have a second threaded portion 331. The first threaded portion 311 and the second threaded portion 331 are threadedly connected so that the abutment portion 31 is embedded in the boss 33. The abutment portion 31 can move relative to the boss 33 by engaging with the boss thread. The abutment portion 31 may be a screw.

[0054] In a specific embodiment, please refer to Figure 1 、 3 The valve cover 3 may be provided with a fixing member 32, and the transmission member 4 may be provided with a groove 42 on the side facing the valve cover 3. The fixing member 32 is adapted to the groove 42, and the valve cover 3 is fixedly connected to the transmission member 4 by the fixing member 32 being embedded in the groove 42. Based on this, the connection stability between the valve cover 3 and the transmission member 4 is improved.

[0055] Optionally, the number of the fixing member 32 and the groove 42 can be one or more, and can be adaptively set according to actual conditions. For example, the fixing member 32 can be a screw.

[0056] In a specific embodiment, please refer again to Figure 1 The valve core 2 and the inner wall of the accommodating chamber 12 can be sealed by a sealing ring 6. The sealing ring 6 can be located between the oil passage 13 and the first threaded portion 21 to prevent oil from flowing out of the other end of the accommodating chamber 12 away from the oil port 11.

[0057] Please refer to Figure 5 and Figure 6 The present invention also provides a shock absorber, comprising an outer cylinder 7, an intermediate cylinder 8, an inner cylinder 9, a piston rod (not shown in the figure) and the regulating valve described in any of the above embodiments.

[0058] Specifically, the outer cylinder 7, the intermediate cylinder 8, and the inner cylinder 9 are arranged in sequence from the outside to the inside, with the piston rod disposed in the inner cylinder 9. The oil flow port 11 of the regulating valve is connected to the intermediate cylinder 8, and the oil flow channel 13 of the regulating valve is connected to the outer cylinder 7. Thus, the shock absorber of the present invention, based on the arrangement of the regulating valve, can precisely adjust the amount of oil flowing between the intermediate cylinder 8 and the outer cylinder 7, achieving a precise adjustment function of the shock absorber's damping effect.

[0059] In summary, the utility model provides a regulating valve and a shock absorber, wherein the regulating valve, based on the action of the abutment portion 31 on the valve core 2, the valve core 2 can make further fine adjustments to the degree of conductivity between the accommodating chamber 12 and the oil port 11 on the basis of preliminary adjustments, thereby achieving precise control of the amount of oil passing through.

[0060] Furthermore, the valve core 2 can be threadedly connected to the first threaded portion 21 and the second threaded portion 121, thereby being movably disposed in the accommodating chamber 12. The abutment portion 31 presses against the valve core 2, thereby tightening the threaded connection between the first threaded portion 21 and the second threaded portion 121, thereby reducing the gap between the first threaded portion 21 and the second threaded portion 121, making the movement of the valve core 2 in the accommodating chamber 12 more precise, thereby achieving precise control of the degree of communication between the accommodating chamber 12 and the oil passage 11.

[0061] The shock absorber of the present invention is based on the setting of the regulating valve, which can accurately adjust the amount of oil flowing between the middle cylinder 8 and the outer cylinder 7, thereby adjusting the shock absorption effect and providing a good user experience.

[0062] Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of a preferred implementation scenario, and the modules or processes in the accompanying drawings are not necessarily necessary for implementing the present invention.

[0063] Those skilled in the art will appreciate that the modules in the devices in the implementation scenario can be distributed in the devices of the implementation scenario according to the implementation scenario description, or can be modified accordingly and located in one or more devices different from the implementation scenario. The modules in the above implementation scenario can be combined into one module or further split into multiple submodules.

[0064] The serial numbers of the above utility models are for description only and do not represent the advantages or disadvantages of the implementation scenarios.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A regulating valve, characterized in that: include: Valve body, valve core and valve cover; The valve body has an oil port, an accommodating cavity communicating with the oil port is formed inside the valve body, and an oil passage communicating with the accommodating cavity is formed on the side wall of the valve body; The valve core is movably disposed in the accommodating chamber, and the valve cover is disposed on the valve body; the valve cover is transmission-connected to the valve core and is used to drive the valve core to move in the accommodating chamber under the action of an external force, so as to preliminarily adjust the degree of conduction between the accommodating chamber and the oil passage port; The valve cover is provided with a movable abutment portion, and the abutment portion is used to drive the valve core to move in the accommodating cavity under the action of an external force, so as to finely adjust the conduction degree based on the preliminary adjustment.

2. A regulating valve according to claim 1, characterized in that: The valve core has a first threaded portion, and the inner wall of the accommodating cavity has a second threaded portion, and the first threaded portion and the second threaded portion are threadedly connected to allow the valve core to be movably disposed in the accommodating cavity; The abutting portion is used to press the valve core under the action of an external force, so as to adjust the virtual position between the first threaded portion and the second threaded portion and achieve fine adjustment of the conduction degree.

3. A regulating valve according to claim 2, characterized in that: A transmission member is provided at one end of the valve body away from the oil passage port, and a transmission groove is provided on the transmission member and passes through the axial direction of the valve core. The end of the valve core away from the oil passage port is embedded in the transmission groove, and the valve cover is transmission-connected to the transmission member. The valve cover is used to drive the transmission member and the valve core to rotate synchronously under the action of external force, so that the first threaded portion and the second threaded portion are threadedly engaged to realize the axial movement of the valve core; wherein, the abutting portion abuts against the valve core through the transmission groove.

4. A regulating valve according to claim 3, characterized in that: The cross section of the transmission groove is polygonal, elliptical, semicircular, star-shaped or irregular.

5. The regulating valve according to claim 3, characterized in that: The valve cover is provided with a boss on one side facing the transmission member, and the boss is embedded in the transmission groove; the abutment portion is movably provided on the boss, and the abutment portion is exposed from the boss and abuts against the valve core through the transmission groove.

6. The regulating valve according to claim 5, characterized in that: The abutting portion has a first threaded portion, the inner wall of the boss has a second threaded portion, and the first threaded portion and the second threaded portion are threadedly connected so that the abutting portion is embedded in the boss.

7. The regulating valve according to claim 3, characterized in that: The valve cover is provided with a fixing piece, and a groove is provided on a side of the transmission piece facing the valve cover. The valve cover is fixedly connected to the transmission piece in a manner that the fixing piece is embedded in the groove.

8. The regulating valve according to claim 3, characterized in that: The valve body is provided with a blocking piece for limiting the transmission member. A limiting space is formed between the inner wall of the valve body and the blocking piece. The transmission member is rotatably arranged in the limiting space.

9. The regulating valve according to claim 1, characterized in that: The valve core has an adjustment portion at one end close to the oil outlet, and the outer diameter of the adjustment portion gradually decreases toward the oil outlet. The valve core is used to move under the action of external force and adjust the degree of conduction between the accommodating cavity and the oil outlet through the adjustment portion.

10. A shock absorber, characterized in that: It comprises an outer cylinder, an intermediate cylinder, an inner cylinder, a piston rod and a regulating valve according to any one of claims 1 to 9; The outer cylinder, the middle cylinder and the inner cylinder are sequentially arranged from outside to inside, the piston rod is arranged in the inner cylinder, the oil port of the regulating valve is connected with the middle cylinder, and the oil passage of the regulating valve is connected with the outer cylinder.

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