A damper mechanism with adjustable damping

Abstract

The utility model discloses a kind of damper mechanisms with adjustable damping, including shell and intermediate cylinder, intermediate cylinder is set in shell, further including sleeve, first valve body and second valve piece, shell sets sleeve, sleeve is coaxially arranged second valve piece and first valve body from outside to inside, second valve piece and first valve body are all set valve cavity in, first valve body valve cavity is communicated with intermediate cylinder cylinder cavity, the end of first valve body remote from intermediate cylinder and second valve piece end face resist contact cooperation, and one or more flow channels are set at cooperation face, second valve piece and first valve body are configured to generate relative rotary action.The utility model has the beneficial effects: by the relative rotary action generated between second valve piece and first valve body, the coincidence degree of flow channel changes or is staggered, the flow rate and flow of oil liquid circulation in intermediate cylinder are changed.The rotation between second valve piece and first valve body is located in sleeve, play a good limiting effect, simple structure, avoid failure.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorption technology, and in particular to an adjustable damping shock absorber mechanism. Background Technology

[0002] Variable damping shock absorbers have the function of adjusting damping force, which can intelligently adjust its damping force according to different driving conditions and road conditions, thereby enhancing the stability of the car and the ride comfort.

[0003] Existing variable damping vibration dampers mainly use solenoid valves and magnetorheological fluid in conjunction with mechanical valve systems to adjust the damping force. This not only results in a complex structure but also a higher failure risk compared to mechanical structures. Furthermore, they require a stable power input, limiting their usability and leading to higher costs.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by this utility model is to solve the problem of complex valve system control and easy failure of variable damping shock absorbers.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] This utility model claims protection for an adjustable damping shock absorber mechanism, including a housing and an intermediate cylinder, the intermediate cylinder being disposed within the housing, and further including a sleeve, a first valve body, and a second valve member. The housing is provided with a sleeve, and the second valve member and the first valve body are coaxially disposed from the outside to the inside of the sleeve. Both the second valve member and the first valve body are provided with valve chambers. The valve chamber of the first valve body is connected to the cylinder chamber of the intermediate cylinder. The end of the first valve body away from the intermediate cylinder abuts against the end face of the second valve member, and one or more flow channels are provided at the mating surface. The second valve member and the first valve body are configured to generate relative rotational movement to adjust the overlap or misalignment of the flow channels.

[0008] Preferably, the second valve component includes a second valve body, a valve cover, and a connecting unit. The second valve body and the first valve body are coaxially arranged inside the sleeve cavity. Both the second valve body and the first valve body have a barrel-shaped structure. The bottoms of the barrels fit together to form a mating surface, and both bottoms have through holes. The through holes partially or completely overlap each other to form a flow channel. The valve cover is sealed at the opening of the second valve body. The valve cover is fitted onto the sleeve, and the valve cover is fixedly fitted to the second valve body through the connecting unit.

[0009] Preferably, one end of the connecting rod is coaxially connected inside the valve cover, and the connecting rod is parallel to the axis of the second valve body;

[0010] The second valve body has a coaxial protrusion of a boss, and the other end of the connecting rod is provided with a first thread, which meshes with the threaded hole corresponding to the boss. The connecting rod and the boss together form a connecting unit.

[0011] Preferably, it also includes a limiting component, wherein a limiting unit is provided at the contact surface between the valve cover and the sleeve, and the limiting unit is configured to limit the rotation angle of the valve cover.

[0012] Preferably, the limiting component includes an elastic unit and a slot. The slot is recessed on the outer wall of the sleeve, and a corresponding mounting groove is recessed on the inner wall of the valve cover. One end of the elastic unit is disposed in the mounting groove, and the other end of the elastic unit is inserted into the slot.

[0013] Preferably, it also includes a connecting member, which is provided inside the housing and has a connecting cavity. One end of the first valve body, which is away from the second valve body, is connected to the connecting member, and the other end of the connecting member extends into the intermediate cylinder. The valve cavity of the first valve body, the connecting cavity, and the cylinder cavity of the intermediate cylinder are connected to each other.

[0014] Preferably, a first sealing assembly is provided between the valve cover and the sleeve.

[0015] Preferably, a second sealing assembly is provided between the second valve body and the sleeve.

[0016] Preferably, the connecting element is a linking ring.

[0017] Preferably, it further includes a locking sleeve, the sleeve having a second thread inside, and the outer wall of the locking sleeve having a third thread that engages with the second thread. The locking sleeve engages with the sleeve until the end of the locking sleeve presses against the second valve body, until the second valve body contacts the first valve body.

[0018] The advantages of this utility model are:

[0019] I. This application involves installing a second valve and a first valve body within the sleeve cavity, with a flow channel formed at the mating surface of the second valve and the first valve body. The first valve body then connects to an intermediate cylinder. The relative rotation between the second valve and the first valve body alters or misaligns the overlap of the flow channels, thus changing the flow rate and velocity of the oil within the intermediate cylinder. Since the rotation of both the second valve and the first valve body occurs within the sleeve, it provides excellent limiting effect, resulting in a simple structure and preventing failure.

[0020] Second, the valve cover not only seals the valve cover but also fits onto the sleeve, thereby achieving synchronous sealing of the sleeve opening and the valve cover opening. In conjunction with the connecting unit, while ensuring sealing, the rotation of the second valve body can be directly controlled by rotating the valve cover. This can greatly reduce costs and simplify control, reducing failure problems caused by complex control.

[0021] Third, a connecting rod is installed on the valve cover. The connecting rod is parallel to the axis of the second valve body. The valve cover and the second valve body are fixed together by the engagement of the connecting rod with the boss. After being fixed, the second valve body can be rotated and adjusted by twisting the valve cover. Moreover, the valve cover, connecting rod and valve cover can be separated and are independent of each other, which can be replaced by each other and improve the service life.

[0022] Fourth, the setting of the limit component not only prevents the valve cover from slipping axially due to accidental contact, but also ensures that the valve cover is limited when rotated to any angle.

[0023] V. The limiting component is mainly achieved through the elastic deformation and reset of the elastic unit. When the valve cover rotates, the elastic unit is squeezed and produces elastic deformation until the elastic unit is aligned with the slot. The elastic unit then resets and is locked in the slot to achieve the limiting.

[0024] VI. The first sealing assembly mainly protects the seal between the valve cover and the sleeve to prevent oil leakage. The second sealing assembly mainly protects the seal between the second valve and the sleeve. The seal is preferably a sealing ring, which not only matches the shape of each component, but is also a standard part, low in cost and easy to use.

[0025] 7. The connecting component is preferably a linking ring, which is a standard part. Through its own annular structure, one end of the linking ring can be aligned with the opening of the first valve body, and the linking ring extends into the intermediate cylinder, thereby making the linking ring cavity interconnected. That is, the connecting cavity, the intermediate cylinder cavity, and the first valve body cavity are interconnected, realizing the flow of oil.

[0026] 8. By using the locking sleeve to press against the second valve body, on the one hand, the second valve body can be guaranteed to engage with the first valve body and limit the second valve body along the axial direction, and on the other hand, it will not affect the valve cover's ability to drive the second valve body to rotate circumferentially. It can be said to achieve two goals at once. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of an adjustable damping shock absorber mechanism according to Embodiment 1 of this utility model;

[0028] Figure 2 This is an enlarged schematic diagram showing the connection of the second valve, the connecting unit, and the limiting component in Embodiment 1 of this utility model.

[0029] a. Shell a; b. Intermediate cylinder b;

[0030] 1. Sleeve; 2. First valve body; 3. Second valve component; 30. Second valve body; 31. Valve cover; 32. Connecting unit; 320. Connecting rod; 321. Boss; 4. Limiting component; 40. Elastic unit; 41. Slot; 5. Connecting component; 6. First sealing component; 7. Second sealing component; 8. Locking sleeve. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] Example 1

[0033] See Figures 1 to 2 This embodiment claims protection for an adjustable damping shock absorber mechanism, including a housing a, an intermediate cylinder b, a sleeve 1, a first valve body 2, a second valve 3, a limiting assembly 4, a connecting member 5, and a locking sleeve 8. The intermediate cylinder b is disposed within the housing a. The housing a also includes a sleeve 1. The second valve 3 and the first valve body 2 are coaxially arranged from the outside to the inside within the sleeve 1 cavity. Both the second valve 3 and the first valve body 2 have valve chambers. The valve chamber of the first valve body 2 communicates with the cylinder chamber of the intermediate cylinder b. The connecting member 5 is disposed within the housing a, preferably a link. A connecting ring 5 has a connecting cavity within it. One end of the first valve body 2, away from the second valve body 30, is connected to the connecting ring 5. The other end of the connecting ring 5 extends into the intermediate cylinder b. The valve cavity of the first valve body 2, the connecting cavity, and the cylinder cavity of the intermediate cylinder b are interconnected. The end of the first valve body 2 away from the intermediate cylinder b abuts against the end face of the second valve 3. The connecting ring 5 is preferably a connecting ring, a standard part. Its annular structure allows one end of the connecting ring to align with the opening of the first valve body 2. The connecting ring extends into the intermediate cylinder b, thus creating a connecting ring cavity. In other words, the connecting cavity, the cylinder cavity of the intermediate cylinder b, and the valve cavity of the first valve body 2 are interconnected, enabling the flow of oil.

[0034] The second valve component 3 includes a second valve body 30, a valve cover 31, and a connecting unit 32. The second valve body 30 and the first valve body 2 are coaxially arranged within the cavity of the sleeve 1. A second thread is provided inside the sleeve 1, and a third thread engaging with the second thread is provided on the outer wall of the locking sleeve 8. The locking sleeve 8 engages with the sleeve 1 until its end presses against the second valve body 30, and then against the first valve body 2. Through the pressing action of the locking sleeve 8 against the second valve body 30, the connection between the second valve body 30 and the first valve body 2 is ensured. The 2-adhesive fit limits the second valve body 30 along the axial direction, while not affecting the circumferential rotation of the second valve body 30 driven by the valve cover 31. It can be said to achieve two goals at once. A second sealing component 7 is provided between the second valve body 30 and the sleeve 1. Both the second valve body 30 and the first valve body 2 have a barrel-shaped structure, and the bottom of the barrels fits together to form a mating surface. In practical applications, in order to ensure the fit of the barrel bottoms, the barrel bottoms are all made of metal, while the non-mating surfaces of the second valve body 30 and the first valve body 2 are made of synthetic organic materials to achieve a better sealing effect. Furthermore, the bottom of the barrel has through holes, and the valve cover 31 is sealed at the opening of the second valve body 30. The valve cover 31 is fitted onto the sleeve 1. The valve cover 31 not only seals the valve cover 31, but also fits onto the sleeve 1, thereby achieving synchronous sealing of the opening of the sleeve 1 and the opening of the valve cover 31. In conjunction with the connecting unit 32, while ensuring sealing, the rotation of the second valve body 30 can be directly controlled by rotating the valve cover 31. This can greatly reduce costs and simplify control, reducing failure problems caused by complex control.

[0035] A first sealing component 6 is provided between the valve cover 31 and the sleeve 1. The first sealing component 6 and the second sealing component 7 are preferably sealing rings. A limiting unit is provided at the contact surface between the valve cover 31 and the sleeve 1. The limiting unit is configured to limit the rotation angle of the valve cover 31. The setting of the limiting component 4 not only avoids the valve cover 31 from slipping axially due to accidental contact, but also ensures that the valve cover 31 is limited when rotated to any angle. The limiting component 4 includes an elastic unit 40 and a groove 41. The groove 41 is recessed on the outer wall of the sleeve 1, and a corresponding mounting groove is recessed on the inner wall of the valve cover 31. One end of the elastic unit 40 is provided in the mounting groove, and the other end of the elastic unit 40 is inserted into the groove 41. The limiting component 4 is mainly realized by the elastic deformation and reset of the elastic unit 40. When the valve cover 31 rotates, the elastic unit 40 is squeezed and undergoes elastic deformation until the elastic unit 40 is aligned with the groove 41. The elastic unit 40 resets and is locked in the groove 41, thus achieving the limiting.

[0036] The valve cover 31 is fixedly engaged with the second valve body 30 via a connecting unit 32 to restrict the relative rotational freedom between the valve cover 31 and the second valve body 30. One end of a connecting rod 320 is coaxially connected inside the valve cover 31, and the connecting rod 320 is parallel to the axis of the second valve body 30. A boss 321 is coaxially protruding from the second valve body 30. The other end of the connecting rod 320 is provided with a first thread, which engages with a corresponding threaded hole on the boss 321. The connecting rod 320 and the boss 321 together constitute the connecting unit 32. The connecting rod 320 is mounted on the valve cover. Parallel to the axis of the second valve body 30, the valve cover 31 is fixed to the second valve body 30 by engaging with the boss 321 via the connecting rod 320. After being fixed, the second valve body 30 can be rotated and adjusted by twisting the valve cover 31. Moreover, the valve cover 31, connecting rod 320 and valve cover 31 are independent of each other after being disassembled and can be replaced by each other to improve service life. One or more flow channels are provided at the mating surface. The second valve 3 and the first valve body 2 are configured to generate relative rotational action to adjust the overlap or misalignment of the flow channels.

[0037] In this embodiment, a second valve element 3 and a first valve body 2 are arranged inside the cavity of the sleeve 1, and a flow channel is provided at the mating surface of the second valve element 3 and the first valve body 2. The first valve body 2 is connected to the intermediate cylinder b. The relative rotation between the second valve element 3 and the first valve body 2 changes or offsets the overlap of the flow channels, thereby altering the flow rate and velocity of the oil in the intermediate cylinder b. The rotation between the second valve element 3 and the first valve body 2 is entirely within the sleeve 1, providing a good limiting effect. The structure is simple and prevents failure.

[0038] Example 2

[0039] Based on Embodiment 1, this embodiment provides a method for using an adjustable damping shock absorber mechanism: Rotating the valve cover 31 causes the connecting rod 320 to press against the slot, driving the second valve body 30 to rotate. The overlap between the through hole of the second valve body 30 and the through hole of the first valve body 2 changes, altering the flow rate and volume of the oil flowing from the intermediate cylinder b to the cylinder cavity of the sleeve 1 and the valve cavity of the first valve body 2. As the valve cover 31 rotates, the elastic unit 40 is compressed and undergoes elastic deformation until the elastic unit 40 aligns with the slot 41. The elastic unit 40 then resets and engages within the slot 41, thus limiting the position of the valve cover 31 and the second valve body 30.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An adjustable damping shock absorber mechanism, comprising a housing (a) and an intermediate cylinder (b), wherein the intermediate cylinder (b) is disposed within the housing (a), characterized in that, It also includes a sleeve (1), a first valve body (2) and a second valve (3). The housing (a) is provided with a sleeve (1). The sleeve (1) is coaxially provided with the second valve (3) and the first valve body (2) from the outside to the inside. Both the second valve (3) and the first valve body (2) are provided with valve chambers. The valve chamber of the first valve body (2) is connected to the cylinder chamber of the intermediate cylinder (b). The end of the first valve body (2) away from the intermediate cylinder (b) abuts against the end face of the second valve (3), and one or more flow channels are provided at the mating surface. The second valve (3) and the first valve body (2) are configured to generate relative rotational action to adjust the overlap or offset of the flow channels.

2. The adjustable damping shock absorber mechanism according to claim 1, characterized in that, The second valve component (3) includes a second valve body (30), a valve cover (31), and a connecting unit (32). The second valve body (30) and the first valve body (2) are coaxially arranged in the sleeve (1). Both the second valve body (30) and the first valve body (2) are barrel-shaped. The bottoms of the barrels fit together to form a mating surface, and the bottoms of the barrels are through holes. The through holes partially or completely overlap each other to form a flow channel. The valve cover (31) is sealed at the opening of the second valve body (30). The valve cover (31) is covered on the sleeve (1). The valve cover (31) is fixedly fitted to the second valve body (30) through the connecting unit (32).

3. The adjustable damping vibration damper mechanism according to claim 2, characterized in that, One end of the connecting rod (320) is coaxially connected inside the valve cover (31), and the connecting rod (320) is parallel to the axis of the second valve body (30); The second valve body (30) has a boss (321) coaxially protruding. The other end of the connecting rod (320) is provided with a first thread and engages with the threaded hole corresponding to the boss (321). The connecting rod (320) and the boss (321) together constitute the connecting unit (32).

4. The adjustable damping shock absorber mechanism according to claim 2, characterized in that, It also includes a limiting component (4), where a limiting unit is provided at the contact surface between the valve cover (31) and the sleeve (1), and the limiting unit is configured to limit the rotation angle of the valve cover (31).

5. The adjustable damping vibration damper mechanism according to claim 2, characterized in that, The limiting component (4) includes an elastic unit (40) and a slot (41). The outer wall of the sleeve (1) is recessed with the slot (41), and the inner wall of the valve cover (31) is correspondingly recessed with an installation groove. One end of the elastic unit (40) is installed in the installation groove, and the other end of the elastic unit (40) is inserted into the slot (41).

6. The adjustable damping shock absorber mechanism according to claim 1, characterized in that, It also includes a connecting member (5), which is provided inside the housing (a). A connecting cavity is provided inside the connecting member (5). The end of the first valve body (2) away from the second valve body (30) is connected to one end of the connecting member (5), and the other end of the connecting member (5) extends into the intermediate cylinder (b). The valve cavity of the first valve body (2), the connecting cavity and the cylinder cavity of the intermediate cylinder (b) are connected to each other.

7. The adjustable damping vibration damper mechanism according to claim 2, characterized in that, A first sealing assembly (6) is provided between the valve cover (31) and the sleeve (1).

8. The adjustable damping vibration damper mechanism according to claim 7, characterized in that, A second sealing assembly (7) is provided between the second valve body (30) and the sleeve (1).

9. The adjustable damping vibration damper mechanism according to claim 6, characterized in that, The connecting element (5) is a linking ring.

10. The adjustable damping shock absorber mechanism according to claim 8, characterized in that, It also includes a locking sleeve (8), with a second thread inside the sleeve (1) and a third thread engaged with the second thread on the outer wall of the locking sleeve (8). The locking sleeve (8) engages with the sleeve (1) until the end of the locking sleeve (8) presses against the second valve body (30) and until the second valve body (30) contacts the first valve body (2).

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