A guide and variable-damping shock absorber

Abstract

The utility model discloses a guider, including the base of integrated setting, first round table protruding and second round table protruding, first round table protruding and second round table protruding are stacked in the base end face in proper order, the base, first round table protruding and second round table protruding coaxial heart setting, and the base, first round table protruding and second round table protruding diameter gradually reduce in proper order, the lateral wall of second round table protruding is equipped with the through groove for liquid flow direction. The utility model discloses still a kind of variable-damping shock absorber. The guider structure provided by the utility model is simple to process, and its assembly in variable-damping shock absorber does not need the intervention of additional sealing element, effectively simplifies the complexity of variable-damping shock absorber overall structure, and effectively reduces cost investment and assembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of vibration damper technology, and in particular to a guide and a variable damping vibration damper. Background Technology

[0002] In the field of electromagnetic variable channel variable damping electronically controlled shock absorbers, a bypass is usually used to realize the flow of damping oil in the shock absorber, so that the damping of the shock absorber can be actively controlled in the bypass channel, and the variable damping can meet the needs of the whole vehicle.

[0003] Such channels are generally achieved by spinning and stamping, such as the structure disclosed in Chinese Patent (Publication No.: CN217761847U). This structure is difficult to process and has a high cost. In addition, in order to ensure the end sealing requirements, corresponding sealing components need to be configured, which further increases the cost. Utility Model Content

[0004] The purpose of this utility model is to provide a guide and a variable damping shock absorber, which simplifies the complexity of the bypass structure parts of the shock absorber, reduces cost and assembly difficulty.

[0005] To solve the above-mentioned technical problems, this utility model provides a guide, including an integrated base, a first frustum protrusion, and a second frustum protrusion;

[0006] The first frustum protrusion and the second frustum protrusion are stacked sequentially on the end face of the base;

[0007] The base, the first frustum protrusion, and the second frustum protrusion are coaxially arranged, and the diameters of the base, the first frustum protrusion, and the second frustum protrusion decrease sequentially.

[0008] The second frustum has a flow channel on its raised sidewall for guiding the liquid flow.

[0009] Furthermore, there are multiple flow channels, and the multiple flow channels are distributed along the sidewall of the second frustum protrusion.

[0010] Furthermore, there are three flow channels, which are evenly distributed around the side wall of the second frustum, and the total span of the three flow channels is half the circumference of the second frustum.

[0011] Furthermore, both the first frustum protrusion and the second frustum protrusion have a chamfered structure at the outer periphery of the end away from the base.

[0012] Furthermore, the integrated structure consisting of the base, the first frustum protrusion, and the second frustum protrusion has a through-hole in the middle for the piston rod of the variable damping shock absorber to pass through.

[0013] Furthermore, the sidewalls of both the first and second frustum protrusions are inclined, forming an angle α.

[0014] Furthermore, the inclination angle α ranges from 2° to 3°.

[0015] This utility model also provides a variable damping shock absorber, including the guide, intermediate cylinder and working cylinder as described above;

[0016] The working cylinder is disposed inside the intermediate cylinder, and the working cylinder and the intermediate cylinder are arranged concentrically;

[0017] The first frustum protrusion and the second frustum protrusion are respectively interference-fitted with the intermediate cylinder and the working cylinder, so that a through channel is formed inside the intermediate cylinder and the working cylinder.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The guide structure provided by this utility model is simple to process, and its assembly in the variable damping shock absorber does not require the intervention of additional seals, which effectively simplifies the complexity of the overall structure of the variable damping shock absorber and effectively reduces cost and assembly difficulty. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the guide in an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the variable damping vibration damper in the embodiment of this utility model;

[0022] Figure 3 This is a cross-sectional schematic diagram of the guide in an embodiment of this utility model. Detailed Implementation

[0023] The guide and variable damping shock absorber of this utility model will be described in more detail below with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model.

[0024] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0025] Example 1

[0026] like Figure 1 As shown, this embodiment proposes a guide, including an integrally formed base 01, a first frustum protrusion 02, and a second frustum protrusion 03; specifically, the first frustum protrusion 02 and the second frustum protrusion 03 are stacked sequentially on the end face 01 of the base; the base 01, the first frustum protrusion 02, and the second frustum protrusion 03 are coaxially arranged, and the diameters of the base 01, the first frustum protrusion 02, and the second frustum protrusion 03 decrease sequentially; a flow groove 031 for guiding liquid flow is provided on the side wall of the second frustum protrusion.

[0027] In this embodiment, the guide body adopts an integrated stepped frustum design, which is simple to manufacture and can be processed using common cutting equipment, resulting in low investment costs.

[0028] In this embodiment, in conjunction with reference Figure 2 When the guide is assembled, based on its structural characteristics, the first frustum protrusion 02 can be used to press against the working cylinder 2 of the variable damping damper to achieve sealing and fixing of the end of the working cylinder 2. At the same time, the second frustum protrusion 03 can be used to press against the intermediate cylinder 1 of the variable damping damper to achieve sealing and fixing of the end of the intermediate cylinder 1. Furthermore, the fluid exchange between the intermediate cylinder 1 and the working cylinder 2 can be achieved through the flow channel 031.

[0029] As can be seen from the above, the assembly of the guide can be carried out without the intervention of additional seals. Therefore, the ends of the intermediate cylinder 1 and the working cylinder 2 do not need to be spun and stamped during manufacturing, which effectively simplifies the complexity of the overall structure of the variable damping shock absorber and effectively reduces cost and assembly difficulty.

[0030] In a preferred embodiment, there are multiple flow channels 031, which are distributed along the sidewall spacing of the second frustum protrusion 03. Multiple flow channels disperse the oil flow path, reducing the pressure load on a single flow channel, minimizing the risk of seal wear or oil leakage due to localized high pressure, and extending the service life of the vibration damper.

[0031] Furthermore, there are three flow channels 031, which are evenly distributed around the side wall of the second frustum protrusion 03. The total span of the three flow channels 031 is half the circumference of the second frustum protrusion 03, ensuring good handling and comfort of the shock absorber.

[0032] In the above embodiment, the outer periphery of the first frustum protrusion 02 and the second frustum protrusion 03 away from the base 01 has a chamfered structure, which facilitates the first frustum protrusion 02 and the second frustum protrusion 03 to dock with the intermediate cylinder and the working cylinder respectively.

[0033] In the above embodiment, a mounting hole 04 is provided through the middle of the integrated structure formed by the base 01, the first frustum protrusion 02, and the second frustum protrusion 03.

[0034] Specifically, mounting hole 04 provides a passage for the piston rod of the variable damping shock absorber, enabling the positioning and installation of the piston rod.

[0035] In one specific embodiment, in conjunction with reference to Figure 3 The sidewalls of the first frustum protrusion 02 and the second frustum protrusion 03 are both inclined, forming an inclination angle α. The presence of the inclination angle α makes it easier to assemble the first frustum protrusion 02 and the second frustum protrusion 03 by generating radial pressure on the mating surface due to the interference fit. This provides a certain degree of axial positioning and anti-loosening capability.

[0036] Preferably, the tilt angle α is in the range of 2° to 3° to ensure good stability and sealing after the guide and variable damping shock absorber are installed.

[0037] Example 2

[0038] like Figure 2 As shown, this embodiment proposes a variable damping shock absorber, including a guide, an intermediate cylinder 1, and a working cylinder 2 as described in Embodiment 1.

[0039] Specifically, the working cylinder 2 is disposed inside the intermediate cylinder 1, and the working cylinder 2 and the intermediate cylinder 1 are concentrically arranged;

[0040] The first frustum protrusion 02 and the second frustum protrusion 03 are respectively interference-fitted with the intermediate cylinder 1 and the working cylinder 2, so that a through channel is formed inside the intermediate cylinder 1 and the working cylinder 2.

[0041] In this embodiment, the main body of the guide can be machined by cutting a columnar part, which simplifies the structure. At the same time, the sealing of the ends of the intermediate cylinder 1 and the working cylinder 2 does not require the intervention of additional sealing parts. Therefore, the ends of the intermediate cylinder 1 and the working cylinder 2 do not need to be processed by spinning and pressurizing, which effectively simplifies the complexity of the overall structure of the variable damping shock absorber and effectively reduces the cost and assembly difficulty.

[0042] In summary, the guide and variable damping shock absorber provided by this utility model have at least the following advantages compared with the prior art:

[0043] The guide structure provided by this utility model is simple to process, and its assembly in the variable damping shock absorber does not require the intervention of additional seals, which effectively simplifies the complexity of the overall structure of the variable damping shock absorber and effectively reduces cost and assembly difficulty.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A guide, characterized in that, It includes an integrated base, a first frustum protrusion, and a second frustum protrusion; The first frustum protrusion and the second frustum protrusion are stacked sequentially on the end face of the base; The base, the first frustum protrusion, and the second frustum protrusion are coaxially arranged, and the diameters of the base, the first frustum protrusion, and the second frustum protrusion decrease sequentially. The second frustum has a flow channel on its raised sidewall for guiding the liquid flow.

2. The guide as described in claim 1, characterized in that, There are multiple flow channels, and the multiple flow channels are distributed along the side wall of the second frustum protrusion.

3. The guide as described in claim 2, characterized in that, There are three flow channels, which are evenly distributed around the second truncated cone protrusion sidewall, and the total span of the three flow channels is half the circumference of the second truncated cone protrusion.

4. The guide as claimed in claim 1, characterized in that, Both the first frustum protrusion and the second frustum protrusion have a chamfered structure at the outer periphery of the end away from the base.

5. The guide as claimed in claim 1, characterized in that, The integrated structure consisting of the base, the first frustum protrusion, and the second frustum protrusion has a through-hole for the piston rod of the variable damping shock absorber to pass through.

6. The guide as claimed in claim 1, characterized in that, The sidewalls of the first and second frustum protrusions are both inclined, forming an angle α.

7. The guide as claimed in claim 6, characterized in that, The value range of the tilt angle α is 2° to 3°.

8. A variable damping vibration damper, characterized in that, Includes the guide, intermediate cylinder, and working cylinder as described in any one of claims 1-7; The working cylinder is disposed inside the intermediate cylinder, and the working cylinder and the intermediate cylinder are arranged concentrically; The first frustum protrusion and the second frustum protrusion are respectively interference-fitted with the intermediate cylinder and the working cylinder, so that a through channel is formed inside the intermediate cylinder and the working cylinder.

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