Inflation mechanism for shock absorber

Abstract

The utility model provides an inflation mechanism for a shock absorber, which belongs to the technical field of automobile shock absorber production, and comprises a pressure adjusting assembly, the pressure adjusting assembly comprises a sliding sleeve, a base arranged at the end part of the sliding sleeve in an elastic telescopic manner, and a pressure head arranged at the bottom of the base; the sliding sleeves are vertically arranged on the side wall of the base, the contact pin adjusting assembly is vertically arranged on the side wall of the base in a manner of inclining to the base, the contact pin adjusting assembly comprises an adjusting part and an air inflation needle, the air inflation needle is arranged at the output end of the adjusting part and can obliquely stretch out and draw back relative to the base, and at least one sliding sleeve is vertically arranged; the adjusting part automatically drives the inflation needle to be in butt joint with the end face oil seal of the shock absorber, accurate butt joint can be achieved, compared with traditional manual operation, the automatic butt joint inflation process is not affected by human factors, and therefore the automatic butt joint inflation device has high advantages in inflation efficiency and automation degree.

Description

Technical Field

[0001] This utility model relates to the field of automotive shock absorber manufacturing technology, specifically to an air-filling mechanism for shock absorbers. Background Technology

[0002] Inflating shock absorbers is involved in both the manufacturing process and subsequent maintenance. Inflating shock absorbers not only eliminates slippage and discontinuities in resistance, improving stability at high speeds, but also extends their lifespan and reduces noise. Furthermore, inflation allows for adjusting air pressure to modify damping characteristics in real time, providing intelligent suspension adjustment.

[0003] In existing technologies, when inflating a shock absorber, an inflation needle is typically inserted into the shock absorber, and then air is pumped into the shock absorber through the inflation needle using an air source. The key to this process is manually aligning the inflation needle with the inflation part of the shock absorber before proceeding with the subsequent inflation. However, this alignment process requires high precision, and the alignment force cannot be effectively controlled manually, often resulting in insufficient alignment accuracy. Therefore, existing solutions are easily affected by the operator's experience, leading to problems with low inflation efficiency and low automation. Utility Model Content

[0004] This utility model provides an inflation mechanism for shock absorbers. It uses a pressure regulating component to drive the pressure head to press against the oil seal of the shock absorber. When the pressure meets the inflation conditions, the regulating part drives the inflation needle to dock with the end face oil seal of the shock absorber, which can achieve precise docking and improve inflation efficiency and automation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An inflation mechanism for a shock absorber includes a pressure regulating assembly, the pressure regulating assembly comprising a sliding sleeve, a base elastically and telescopically disposed at an end of the sliding sleeve, and a pressure head disposed at the bottom of the base; and

[0007] A pin adjustment assembly is vertically disposed on the side wall of the base at an inclination to the base. The pin adjustment assembly includes an adjustment part and an inflation pin disposed at the output end of the adjustment part and capable of oblique extension and retraction relative to the base.

[0008] Preferably, the sliding sleeve is at least one vertically arranged.

[0009] Preferably, the pressure regulating assembly further includes a slide rod, and the slide sleeve and base are slidably disposed on the outer side wall of the slide rod.

[0010] Preferably, a spring sleeve is fixedly provided on the top of the base, and a compression spring is provided on the outer wall of the slide rod between the spring sleeve and the sliding sleeve.

[0011] Preferably, the base includes an L-shaped base body and a connecting seat vertically fixed at the bottom end of the L-shaped base body, and the sliding sleeve is disposed at the top end of the L-shaped base body.

[0012] Preferably, the pressure head is fixedly disposed at the bottom end of the L-shaped base, and the pressure head has a trumpet-shaped cylindrical structure.

[0013] Preferably, the pin adjustment assembly further includes a mounting structure for mounting the adjustment part, the mounting structure including a connecting plate fixedly disposed on the side wall of the connecting seat and a mounting plate extending obliquely outward from the side wall of the connecting plate away from the connecting seat.

[0014] Preferably, the adjustment unit includes a movable cylinder fixed on the mounting plate, a tooling seat disposed at the free-moving end of the movable cylinder, and an inflation adjustment head disposed on the tooling seat.

[0015] Preferably, the inflation needle is located at the end of the inflation adjustment head away from the tooling female seat.

[0016] Preferably, the translation direction of the movable cylinder is parallel to the length direction of the mounting plate, and the angle between the extension line of the translation direction of the movable cylinder and the extension line of the sliding sleeve axis is 30 to 80°.

[0017] As can be seen from the above technical solutions, this utility model has the following beneficial effects:

[0018] 1. In this utility model, the shock absorber to be inflated is vertically fixed on the positioning fixture to fix the shock absorber. First, the sliding sleeve and the pressure head on the base contact the oil seal of the shock absorber. Then, the sliding sleeve drives the pressure head on the base to press the oil seal. After the pressing pressure meets the inflation conditions, the inflation adjusting head and the inflation needle are driven to move towards the end face oil seal of the shock absorber under the action of the moving cylinder, so that the inflation needle moves to dock with the end face oil seal, so as to accurately insert the inflation needle into the inside of the shock absorber. Then, the gas output from the air source enters the inside of the shock absorber through the inflation adjusting head and the inflation needle to realize the inflation of the shock absorber.

[0019] 2. In this utility model, before inflation, the sliding sleeve and the pressure head are moved together to make initial contact with the shock absorber oil seal. Then, the sliding sleeve drives the pressure head to move to further press the oil seal. When the pressing force meets the inflation conditions, the inflation needle is driven by the adjustment part to perform the inflation operation. Therefore, by using the above-mentioned initial contact and secondary pressing process, it can be ensured that the oil seal pressure meets the inflation requirements during inflation, thereby improving the inflation efficiency. Attached Figure Description

[0020] Figure 1 This is a front view of the overall structure of this utility model;

[0021] Figure 2 This is a side view of the overall structure of this utility model;

[0022] Figure 3 for Figure 1 A schematic diagram showing the removal of the pin adjustment component;

[0023] Figure 4 for Figure 3 A schematic diagram of section AA.

[0024] In the diagram: 110, sliding sleeve; 120, base; 121, L-shaped seat; 122, connecting seat; 130, pressure head; 140, sliding rod; 150, spring sleeve; 160, compression spring; 311, moving cylinder; 312, tooling female seat; 313, inflation adjusting head; 320, inflation needle; 331, connecting plate; 332, mounting plate. Detailed Implementation

[0025] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: (Refer to...) Figure 1 , Figure 2 An inflation mechanism for a shock absorber includes a pressure regulating assembly and a pin regulating assembly. Further, the pressure regulating assembly includes a sliding sleeve 110, a base 120, and a pressure head 130. In this embodiment, the sliding sleeve 110 is arranged vertically, the base 120 is elastically telescopically disposed at the end of the sliding sleeve, and the pressure head 130 is disposed at the bottom of the base. Meanwhile, the pin regulating assembly is disposed on the side wall of the base, inclined to the vertical direction of the base 120. Further, the pin regulating assembly includes an adjusting part and an inflation pin 320 disposed at the output end of the adjusting part, and the inflation... The needle 320 can extend and retract obliquely relative to the base 120. In use, the inflation mechanism can be mounted as a whole on a plate, which can also be vertically displaced by an external drive source. The car shock absorber to be inflated is vertically fixed using a positioning fixture. First, the external drive source moves the sliding sleeve and pressure head together until they make initial contact with the shock absorber's oil seal. Then, the sliding sleeve drives the pressure head to further compress the oil seal. When the compression force meets the inflation conditions, the inflation needle is driven by the adjusting unit to perform the inflation operation, thereby achieving precise docking and improving inflation efficiency and automation. In this embodiment, the adjusting unit automatically drives the inflation needle to dock with the shock absorber, achieving precise inflation docking. Compared to traditional manual operation, this automated docking inflation process is not affected by human factors, thus offering significant advantages in inflation efficiency and automation.

[0027] It should be noted that the shock absorber inflated by the inflation mechanism in this embodiment does not have an inflation hole, and the end face of the pressure head 130 is designed in a conical shape. This allows the conical design of the pressure head to ensure that the conical surface of the oil seal fits snugly against the pressure head end face after the pressure head moves down and presses against the oil seal. As the pressure head continues to press down, it maintains a tight fit with the oil seal. Once the appropriate downward pressure is reached, the inflation needle extends and pierces the surface of the shock absorber oil seal, reaching the inflation position inside the oil seal. Inflation then begins, and the inflation needle retracts after inflation is complete. Because the inflation needle in this embodiment is only 0.5mm thick, and the surface of the shock absorber oil seal is made of rubber, there is no air leakage from the shock absorber when the inflation needle pierces the oil seal.

[0028] As a preferred technical solution in this embodiment, the sliding sleeve 110 is at least one vertically arranged; specifically, in this embodiment, the sliding sleeve 110 is two symmetrically arranged.

[0029] Furthermore, the pressure regulating assembly also includes a slide rod 140, and the slide sleeve 110 and the base 120 are slidably disposed on the outer side wall of the slide rod 140. That is, the slide rod, the slide sleeve and the base are coaxially arranged, and the base is located at the bottom end of the slide sleeve. In this way, when the slide sleeve is driven to slide along the slide rod by an external force, the base and the pressure head on the base can be driven to slide simultaneously, thereby facilitating the initial contact and pressing of the pressure head with the shock absorber oil seal.

[0030] To achieve the elastic telescopic connection between the base 120 and the sliding sleeve 110, a spring sleeve 150 is fixedly provided on the top of the base 120, and the spring sleeve is slidably disposed at the bottom end of the sliding rod. A compression spring 160 is provided on the outer wall of the sliding rod 140 between the top end of the spring sleeve and the bottom end of the sliding sleeve 110. In this way, after the sliding sleeve drives the base and the pressure head to contact the oil seal, as the sliding sleeve moves further down, the pressure head reacts to the compression spring, causing the compression spring to be compressed, thereby increasing the clamping force between the pressure head and the oil seal. When the clamping force reaches a suitable value, the next inflation action can be performed.

[0031] It should be noted that when the inflatable structure is installed through an external plate, the slide bar can be set in a vertically fixed form, and the downward movement of the slide sleeve 110 can be driven by a drive source, such as a power element like a cylinder.

[0032] Furthermore, refer to Figure 3 The base 120 includes an L-shaped base 121 and a connecting seat 122. The connecting seat 122 is vertically fixed at the bottom of the L-shaped base. Specifically, the connecting seat can also be L-shaped, and the short side of the L-shaped connecting seat is fixedly connected to the inner bottom of the L-shaped base. In this way, the L-shaped base and the connecting seat can form a main frame structure for installing the pressure adjustment component and the pin adjustment component. Furthermore, the sliding sleeve 110 is located at the top of the L-shaped base.

[0033] Furthermore, the pressure head 130 is fixedly installed at the bottom end of the L-shaped seat 121. At the same time, the pressure head has a horn-shaped cylindrical structure. When inflating, the pressure head can be placed around the piston rod of the shock absorber and can contact the oil seal under the drive of the L-shaped seat 121 to achieve the pressing of the oil seal.

[0034] Before inflation, the present invention first moves the sliding sleeve and the pressure head together to make initial contact with the shock absorber oil seal. Then the sliding sleeve drives the pressure head to move to further press the oil seal. When the pressing force meets the inflation conditions, the inflation needle is driven by the adjustment part to perform the inflation operation. Therefore, by using the above-mentioned initial contact and secondary pressing process, it can be ensured that the oil seal pressure meets the inflation requirements during inflation, thereby improving the inflation efficiency.

[0035] Reference Figure 3 , Figure 4 In some embodiments, the pin adjustment assembly further includes a mounting structure for mounting the adjustment part. Further, the mounting structure includes a connecting plate 331 and a mounting plate 332. The connecting plate 331 is fixedly disposed on the side wall of the connecting seat 122. During specific assembly, the connecting plate can be fixed to one side of the connecting seat using fasteners such as bolts. The mounting plate 332 extends obliquely outward from the side wall of the connecting plate away from the connecting seat. In this way, a base component for mounting the adjustment part is formed on the side wall of the connecting seat 122, facilitating the stable installation and fixing of the adjustment part and the inflation pin.

[0036] Furthermore, the adjustment unit includes a movable cylinder 311, a tooling seat 312, and an inflation adjustment head 313. The movable cylinder 311 is fixedly mounted on the mounting plate 332, the tooling seat 312 is located at the free-moving end of the movable cylinder, and the inflation adjustment head 313 is located on the tooling seat. Specifically, the inflation needle 320 is located at the end of the inflation adjustment head 313 away from the tooling seat 312. It should be noted that the inflation adjustment head is a plug that can be connected to the inflation needle, and the inflation adjustment head is also connected to an air source.

[0037] During operation, the free-moving end of the movable cylinder drives the tooling base, inflation adjustment head, and inflation needle towards the end face oil seal position of the shock absorber, ultimately moving the inflation needle to mate with the shock absorber, thus achieving precise alignment during inflation. Since the displacement and stroke of both components can be controlled by the movable cylinder as needed during alignment, alignment accuracy can be effectively guaranteed.

[0038] In some embodiments, refer to Figure 1The translation direction of the movable cylinder 311 is parallel to the length direction of the mounting plate 332, and the angle between the extension line of the translation direction of the movable cylinder and the extension line of the axis of the sliding sleeve 110 is 30 to 80°. Specifically, in this embodiment, the angle between the two is 45°. In this way, the inflation needle set on the tooling female seat moves towards the shock absorber in an oblique manner, thereby ensuring that the inflation needle accurately docks with the oil seal on the end face of the shock absorber under the action of the movable cylinder.

[0039] In addition, in order to achieve effective docking between the inflation needle and the end face oil seal, the translation direction of the moving cylinder 311 in this embodiment is not limited to the aforementioned distribution parallel to the length direction of the mounting plate. That is, in the actual working process, the moving cylinder can be set to be inclined to the length direction of the mounting plate as needed, so that the inflation needle and the shock absorber can be accurately docked under the drive of the moving cylinder.

[0040] In use, the shock absorber to be inflated is fixed vertically. First, an external drive source drives the sliding sleeve and the pressure head on the base to contact the oil seal of the shock absorber. Then, the sliding sleeve further drives the pressure head on the base to press the oil seal. After the pressing pressure meets the inflation conditions, the movement cylinder 311 drives the inflation adjustment head 313 and the inflation needle 320 to move towards the oil seal on the end face of the shock absorber, so that the inflation needle 320 moves to align with the oil seal on the end face, so that the inflation needle is accurately inserted into the oil seal. Then, the gas output from the air source enters the inside of the shock absorber through the inflation adjustment head 313 and the inflation needle 320, thereby inflating the shock absorber.

[0041] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. An air-inflating mechanism for a shock absorber, characterized in that, include: A pressure regulating assembly, comprising a sliding sleeve (110), a base (120) elastically telescopically disposed at the end of the sliding sleeve, and a pressure head (130) disposed at the bottom of the base; and The pin adjustment assembly is vertically disposed on the side wall of the base (120) at an inclination. The pin adjustment assembly includes an adjustment part and an inflation pin (320) disposed at the output end of the adjustment part and capable of oblique extension and retraction relative to the base (120).

2. The air-inflating mechanism for a shock absorber according to claim 1, characterized in that, The sliding sleeve (110) is at least one vertically arranged.

3. The air-inflating mechanism for a shock absorber according to claim 2, characterized in that, The pressure regulating assembly also includes a slide rod (140), and the slide sleeve (110) and the base (120) are slidably disposed on the outer side wall of the slide rod (140).

4. The air-filling mechanism for a shock absorber according to claim 3, characterized in that, A spring sleeve (150) is fixedly provided on the top of the base (120), and a compression spring (160) is provided on the outer wall of the slide rod (140) between the spring sleeve and the slide sleeve (110).

5. The air-inflating mechanism for a shock absorber according to claim 1, characterized in that, The base (120) includes an L-shaped base (121) and a connecting seat (122) vertically fixed at the bottom of the L-shaped base, and the sliding sleeve (110) is disposed at the top of the L-shaped base.

6. The air-inflating mechanism for a shock absorber according to claim 5, characterized in that, The pressure head (130) is fixedly installed at the bottom end of the L-shaped base (121), and the pressure head has a trumpet-shaped cylindrical structure.

7. The air-inflating mechanism for a shock absorber according to claim 1, characterized in that, The pin adjustment assembly also includes a mounting structure for mounting the adjustment part, the mounting structure including a connecting plate (331) fixedly disposed on the side wall of the connecting seat (122) and a mounting plate (332) extending obliquely outward from the side wall of the connecting plate away from the connecting seat.

8. The air-charging mechanism for a shock absorber according to claim 7, characterized in that, The adjustment unit includes a movable cylinder (311) fixed on the mounting plate (332), a tooling seat (312) disposed at the free moving end of the movable cylinder, and an inflation adjustment head (313) disposed on the tooling seat.

9. The air-charging mechanism for a shock absorber according to claim 8, characterized in that, The inflation needle (320) is located at the end of the inflation adjustment head (313) away from the tooling female seat (312).

10. The air-charging mechanism for a shock absorber according to claim 9, characterized in that, The translation direction of the movable cylinder (311) is parallel to the length direction of the mounting plate (332), and the angle between the extension line of the translation direction of the movable cylinder and the extension line of the axis of the sliding sleeve (110) is 30 to 80°.

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