A clamp for inflating a shock absorber

Abstract

The utility model discloses a kind of shock absorber inflation clamps, including chuck and passage establishing mechanism, chuck can carry out opening and closing action, to hold and release shock absorber, passage establishing mechanism includes inflation needle and drive assembly, drive assembly is connected with inflation needle transmission, drive assembly at least can drive inflation needle move along first direction, when shock absorber is held by chuck, at least part of inflation needle can be extended between the oil seal and piston rod of shock absorber, to establish inflation passage between oil seal and piston rod. The utility model is simple and reasonable in structure, easy to operate, conducive to improving production efficiency and reducing production cost.

Description

Technical Field

[0001] This utility model relates to the field of shock absorber inflation equipment, and in particular to a clamp for inflating shock absorbers. Background Technology

[0002] Shock absorbers are the core components of a car's suspension system. They can dampen vibrations caused by road impacts, improving the vehicle's ride comfort and handling safety.

[0003] In some technologies, the shock absorber includes a cylinder and a piston rod assembly. The piston rod assembly includes a piston and a piston rod. The piston is movably disposed inside the cylinder. One end of the piston rod is fixedly connected to the piston, and the other end of the piston rod extends out of the cylinder. An oil seal is provided at the end of the cylinder. Along the direction of movement of the piston rod assembly, the piston rod and the oil seal are slidably sealed together.

[0004] To improve the damping effect of shock absorbers, it is usually necessary to fill the cylinder with gases such as nitrogen. During the inflation process, an inflation channel needs to be established between the oil seal and the piston rod so that the gas can enter the cylinder through the inflation channel. In existing technology, the oil seal is usually manually opened with an inflation needle to create the inflation channel. This method of manually creating the inflation channel is not only inconvenient to operate, but also inefficient and costly.

[0005] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings and deficiencies of the existing technology by providing a clamp for inflating shock absorbers. This clamp has a simple and reasonable structure, is easy to operate, and is conducive to improving production efficiency and reducing production costs.

[0007] To achieve the above objectives, the present invention adopts the following technical solution.

[0008] A shock absorber inflation clamp, the clamp comprising: A chuck, capable of opening and closing to hold and release the shock absorber, wherein when the shock absorber is held by the chuck, the length direction of the shock absorber is defined as a first direction; A channel establishing mechanism, the channel establishing mechanism including an inflation needle and a driving assembly, the driving assembly being tractively connected to the inflation needle, the driving assembly being capable of driving the inflation needle to move along the first direction; When the shock absorber is held by the chuck, at least a portion of the inflation needle can extend between the oil seal and the piston rod of the shock absorber to establish an inflation channel between the oil seal and the piston rod.

[0009] Furthermore, the driving assembly includes a first driving block and a first driving member. The first driving member is driven to the first driving block, and the first driving member can drive the first driving block to move along the first direction. The inflation needle is driven to the first driving block, and along the first direction, the inflation needle can move synchronously with the first driving block.

[0010] Furthermore, the inflation needle includes a first sliding part, which is slidably connected to the first driving block. The first sliding part can move relative to the first driving block along a second direction, which is set at an angle to the first direction. Along the first direction, the first sliding part can move synchronously with the first driving block.

[0011] Furthermore, the driving assembly includes a second driving block and a second driving member, the second driving member being connected to the second driving block in a transmission manner, and the second driving member being capable of driving the second driving block to move along the second direction; The inflation needle includes a second sliding part, which is slidably connected to the second driving block. The second sliding part can move relative to the second driving block in the first direction, and in the second direction, the second sliding part can move synchronously with the second driving block.

[0012] Furthermore, the second drive block is provided with a clearance notch that corresponds to and cooperates with the first sliding part, and the clearance notch extends along the first direction.

[0013] Furthermore, the second direction is perpendicular to the first direction.

[0014] Further, along the first direction, the inflation needle includes a first end and a second end, the inflation needle includes a needle head located at the first end, the inflation needle includes a contact surface, at least a portion of the contact surface is capable of contacting the piston rod, the contact surface has an inflation groove, one end of the inflation groove passes through the second end, and the other end of the inflation groove extends to the needle head.

[0015] Furthermore, along the first direction, the needle head is wedge-shaped.

[0016] Furthermore, the chuck includes a first clamping part and a second clamping part, the first clamping part and the second clamping part are arranged along the first direction, the first clamping part is used to clamp the cylinder of the shock absorber, and the second clamping part is used to clamp the piston rod.

[0017] Furthermore, the clamp includes a first clamp and a second clamp that are adapted to each other. One end of the first clamp and the second clamp cooperate to form the first clamping part, and the other end of the first clamp and the second clamp cooperate to form the second clamping part. When the shock absorber is clamped by the clamp, the first clamp, the second clamp and the shock absorber cooperate to form an inflation chamber. At least a portion of the inflation needle is located in the inflation chamber. The clamp includes an air passage, and the air passage communicates with the inflation chamber.

[0018] The beneficial effects of this utility model are as follows: Compared with the prior art, the shock absorber inflation clamp provided by this utility model, through the setting of a channel establishing mechanism, including an inflation needle and a driving component, allows the driving component to drive the inflation needle to move at least in a first direction when the shock absorber is clamped by the clamp, so that at least a portion of the inflation needle can extend between the oil seal and the piston rod of the shock absorber, thereby establishing an inflation channel between the oil seal and the piston rod to facilitate the inflation operation of the shock absorber. This utility model has a simple and reasonable structure, is easy to operate, and is conducive to improving production efficiency and reducing production costs. Attached Figure Description

[0019] Figure 1 This is a schematic cross-sectional view of a shock absorber.

[0020] Figure 2 This is a three-dimensional structural diagram of the entire utility model from one perspective.

[0021] Figure 3 This is a three-dimensional structural diagram of the entire utility model from another perspective.

[0022] Figure 4 This is a top view of the entire utility model.

[0023] Figure 5 This is a three-dimensional structural diagram of the channel establishing mechanism of this utility model.

[0024] Figure 6 This is a cross-sectional schematic diagram of the channel establishing mechanism of this utility model.

[0025] Figure 7 This is an exploded structural diagram of the inflatable needle, the first driving block, and the second driving block of this utility model.

[0026] Figures 1-7 middle: 10. Cylinder; 11. Piston; 12. Piston rod; 13. Oil seal; 20. Chuck; 21. First chuck; 211. Slide groove; 22. Second chuck; 23. First clamping part; 24. Second clamping part; 30. Inflation needle; 31. Needle head; 32. First sliding part; 33. Second sliding part; 34. First end; 35. Second end; 36. Contact surface; 37. Inflation groove; 41. First drive block; 42. First drive component; 43. Second drive block; 431. Clearance notch; 44. Second drive component. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, in some technologies, a shock absorber includes a cylinder 10 and a piston rod assembly. The piston rod assembly includes a piston 11 and a piston rod 12. The piston 11 is movably disposed within the cylinder 10. One end of the piston rod 12 is fixedly connected to the piston 11, and the other end of the piston rod 12 extends out of the cylinder 10. An oil seal 13 is provided at the end of the cylinder 10. Along the direction of movement of the piston rod assembly, the piston rod 12 and the oil seal 13 are slidably sealed together. After the shock absorber is assembled, it is necessary to inflate the cylinder 10.

[0029] like Figures 2 to 7 As shown, a shock absorber inflation clamp is applicable to the inflation operation of shock absorbers. The clamp includes a chuck 20 and a channel establishing mechanism. The chuck 20 can open and close to clamp and release the shock absorber. When the shock absorber is clamped by the chuck 20, the length direction of the shock absorber is defined as the first direction, which is the axial direction of the cylinder 10 / piston rod 12 of the shock absorber.

[0030] In this embodiment, the chuck 20 includes a first chuck 21 and a second chuck 22 that are adapted to each other. Under the drive of the power mechanism, the first chuck 21 and the second chuck 22 can move closer and further apart to perform an opening and closing action. It should be noted that using the power mechanism to drive the first chuck 21 and the second chuck 22 to move closer and further apart, i.e., to drive the chuck 20 to perform an opening and closing action, is prior art and will not be described in detail here. Along the first direction, one end of the first chuck 21 and the second chuck 22 cooperates to form a first clamping part 23, and the other end of the first chuck 21 and the second chuck 22 cooperates to form a second clamping part 24. That is, the first clamping part 23 and the second clamping part 24 are arranged along the first direction. When clamping the shock absorber, the first clamping part 23 is used to clamp the cylinder 10 of the shock absorber, and the second clamping part 24 is used to clamp the piston rod 12, thereby fixing the shock absorber within the chuck 20. When the shock absorber is held by the chuck 20, the first chuck 21, the second chuck 22 and the shock absorber cooperate to form an air chamber (not shown in the figure). The chuck 20 includes an air passage (not shown in the figure), which is connected to the air chamber. The air passage is used to connect to an air source. When the air is being inflated, the compressed gas from the air source enters the air chamber through the air passage.

[0031] The channel establishment mechanism includes an inflation needle 30 and a drive assembly. In this embodiment, at least a portion of the inflation needle 30 is located inside the first clamp 21, that is, after the shock absorber is clamped by the clamp 20, at least a portion of the inflation needle 30 is located in the inflation chamber. The drive assembly is drively connected to the inflation needle 30, and the drive assembly can at least drive the inflation needle 30 to move along a first direction. When the shock absorber is clamped by the clamp 20, at least a portion of the inflation needle 30 can extend between the oil seal 13 and the piston rod 12 of the shock absorber to establish an inflation channel between the oil seal 13 and the piston rod 12.

[0032] In some embodiments, the drive assembly can drive the inflation needle 30 to move along a first direction. For example, when the shock absorber is held by the chuck 20, if the peripheral wall of the portion of the piston rod 12 extending out of the cylinder 10 contacts the inflation needle 30 (such as the two being in contact), then it is only necessary to use the drive assembly to drive the inflation needle 30 to move along the first direction, so that at least a portion of the inflation needle 30 extends between the oil seal 13 and the piston rod 12, that is, an inflation gap is formed between the oil seal 13 and the piston rod 12, and an inflation channel can be established.

[0033] In this embodiment, the driving component can drive the inflation needle 30 to move along a first direction and a second direction. The second direction is set at an angle to the first direction so that the inflation needle 30 has a movement trajectory in different directions. Specifically, the second direction is perpendicular to the first direction. That is, in this embodiment, the second direction is the diameter direction of the piston rod 12. Along the first direction, the drive assembly drives the inflation needle 30 to move along the axial direction of the piston rod 12, so that the inflation needle 30 extends into the space between the oil seal 13 and the piston rod 12, and moves out of the space between the oil seal 13 and the piston rod 12, thereby establishing an inflation channel before inflation and removing the inflation channel after inflation. Along the second direction, the drive assembly drives the inflation needle 30 to move radially along the piston rod 12, so that the inflation needle 30 contacts the peripheral wall of the piston rod 12, and moves away from the peripheral wall of the piston rod 12. When the inflation needle 30 moves away from the peripheral wall of the piston rod 12, it is convenient for the chuck 20 to clamp and release the shock absorber. When the inflation needle 30 contacts the peripheral wall of the piston rod 12, it is convenient for the inflation needle 30 to extend into and move out of the space between the oil seal 13 and the piston rod 12 when moving along the first direction.

[0034] In this embodiment, as Figures 5 to 7As shown, the drive assembly includes a first drive block 41, a first drive member 42, a second drive block 43, and a second drive member 44. The inflation needle 30, the first drive block 41, and the second drive block 43 are disposed inside the first chuck 21, and the first drive member 42 and the second drive member 44 are disposed outside the first chuck 21. The first drive member 42 and the second drive member 44 can be any of a cylinder, a hydraulic cylinder, and a motor. In this embodiment, both the first drive member 42 and the second drive member 44 are cylinders. The first drive member 42 is connected to the first drive block 41 and can drive the first drive block 41 to move along a first direction. The second drive member 44 is connected to the second drive block 43 and can drive the second drive block 43 to move along a second direction. To improve the stability and reliability of the drive assembly's operation, in this embodiment, the inner wall of the first chuck 21 is provided with a sliding groove 211 that guides and cooperates with the second drive block 43. The sliding groove 211 extends along the second direction.

[0035] The inflation needle 30 includes a needle head 31, a first sliding part 32 and a second sliding part 33. The needle head 31, the first sliding part 32 and the second sliding part 33 remain relatively stationary. Along the first direction, the inflation needle 30 includes a first end 34 and a second end 35. The needle head 31 is located at the first end 34, the first sliding part 32 is located at the second end 35, and the second sliding part 33 is located between the needle head 31 and the first sliding part 32. The needle head 31 extends along a first direction and is wedge-shaped. The end of the needle head 31 furthest from the second end 35 is pointed, allowing the needle head 31 to extend between the oil seal 13 and the piston rod 12. The inflation needle 30 includes a contact surface 36, at least a portion of which can contact the piston rod 12. In this embodiment, the contact surface 36 is arc-shaped and can fit against the peripheral wall of the piston rod 12. The contact surface 36 has an inflation groove 37, one end of which passes through the second end 35, and the other end of which extends to the needle head 31. The first sliding part 32 is misaligned with the inflation groove 37. When the needle head 31 extends between the oil seal 13 and the piston rod 12, the needle head 31 radially expands the oil seal 13. The inflation groove 37 and the peripheral wall of the piston rod 12 cooperate to form an inflation channel, allowing gas in the inflation chamber to enter the cylinder 10 through the inflation channel.

[0036] The inflation needle 30 is connected to the first driving block 41 in a transmission connection. Along the first direction, the inflation needle 30 can move synchronously with the first driving block 41. Specifically, the first sliding part 32 is slidably connected to the first driving block 41. The first sliding part 32 can move relative to the first driving block 41 in a second direction. Along the first direction, the first sliding part 32 can move synchronously with the first driving block 41. The second sliding part 33 is slidably connected to the second driving block 43. The second sliding part 33 can move relative to the second driving block 43 in the first direction. Along the second direction, the second sliding part 33 can move synchronously with the second driving block 43.

[0037] In this embodiment, as Figure 7 As shown, the second driving block 43 is provided with a clearance notch 431 that corresponds to and cooperates with the first sliding part 32. The clearance notch 431 extends along the first direction. When the first driving block 41 drives the inflation needle 30 to move along the first direction, the first sliding part 32 slides relative to the clearance notch 431, thereby effectively avoiding motion interference between the first driving block 41 and the second driving block 43.

[0038] In the initial state, the first chuck 21 and the second chuck 22 are far apart, i.e., the chuck 20 is in the open state. At this time, the inflation needle 30 is in the first position along the first direction and in the second position along the second direction. When the shock absorber is installed, the first chuck 21 and the second chuck 22 move closer to each other, and the first clamping part 23 and the second clamping part 24 clamp the cylinder 10 and piston rod 12 of the shock absorber respectively. At this time, the second driving block 43 is first driven by the second driving member 44 to move in the positive direction of the second direction, so that the second driving block 43 drives the inflation needle 30 to move synchronously in the positive direction of the second direction until the inflation needle 30 is in the third position along the second direction, i.e., the contact surface 36 of the inflation needle 30 is in contact with the peripheral wall of the piston rod 12. During this process, the first sliding part 32 moves relative to the first driving block 41 in the positive direction of the second direction. The direction is slid, and then the second driving member 44 stops moving. The first driving member 42 drives the first driving block 41 to move in the positive direction of the first direction. The first driving block 41 drives the inflation needle 30 to move synchronously in the positive direction of the first direction until the inflation needle 30 is in the fourth position in the first direction, that is, the needle head 31 extends between the oil seal 13 and the piston rod 12, completing the establishment of the inflation channel. The gas in the inflation chamber enters the cylinder 10 through the inflation channel. After inflation is completed, the first driving member 42 drives the first driving block 41 and the inflation needle 30 to move in the negative direction of the first direction until the inflation needle 30 returns to the first position in the first direction. Then the second driving member 44 drives the second driving block 43 and the inflation needle 30 to move in the negative direction of the second direction until the inflation needle 30 returns to the second position in the second direction.

[0039] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A clamp for inflating a shock absorber, characterized in that, The clamp includes: A chuck, capable of opening and closing to hold and release the shock absorber, wherein when the shock absorber is held by the chuck, the length direction of the shock absorber is defined as a first direction; A channel establishing mechanism, the channel establishing mechanism including an inflation needle and a driving assembly, the driving assembly being tractively connected to the inflation needle, the driving assembly being capable of driving the inflation needle to move along the first direction; When the shock absorber is held by the chuck, at least a portion of the inflation needle can extend between the oil seal and the piston rod of the shock absorber to establish an inflation channel between the oil seal and the piston rod.

2. The shock absorber inflation clamp according to claim 1, characterized in that, The driving assembly includes a first driving block and a first driving member. The first driving member is driven to the first driving block and can drive the first driving block to move along the first direction. The inflation needle is driven to the first driving block and can move synchronously with the first driving block along the first direction.

3. The shock absorber inflation clamp according to claim 2, characterized in that, The inflation needle includes a first sliding part, which is slidably connected to the first driving block. The first sliding part can move relative to the first driving block along a second direction, which is set at an angle to the first direction. Along the first direction, the first sliding part can move synchronously with the first driving block.

4. The shock absorber inflation clamp according to claim 3, characterized in that, The drive assembly includes a second drive block and a second drive member, the second drive member being connected to the second drive block in a transmission manner, and the second drive member being able to drive the second drive block to move along the second direction; The inflation needle includes a second sliding part, which is slidably connected to the second driving block. The second sliding part can move relative to the second driving block in the first direction, and in the second direction, the second sliding part can move synchronously with the second driving block.

5. The shock absorber inflation clamp according to claim 4, characterized in that, The second drive block is provided with a clearance notch that corresponds to and cooperates with the first sliding part, and the clearance notch extends along the first direction.

6. The shock absorber inflation clamp according to claim 3 or 4, characterized in that, The second direction is perpendicular to the first direction.

7. The shock absorber inflation clamp according to claim 1, characterized in that, Along the first direction, the inflation needle includes a first end and a second end, the inflation needle includes a needle head located at the first end, the inflation needle includes a contact surface, at least a portion of the contact surface is capable of contacting the piston rod, the contact surface has an inflation groove, one end of the inflation groove passes through the second end, and the other end of the inflation groove extends to the needle head.

8. The shock absorber inflation clamp according to claim 7, characterized in that, Along the first direction, the needle head is wedge-shaped.

9. The shock absorber inflation clamp according to claim 1, characterized in that, The chuck includes a first clamping part and a second clamping part, which are arranged along the first direction. The first clamping part is used to clamp the cylinder of the shock absorber, and the second clamping part is used to clamp the piston rod.

10. The shock absorber inflation clamp according to claim 9, characterized in that, The clamp includes a first clamp and a second clamp that are adapted to each other. One end of the first clamp and the second clamp cooperate to form the first clamping part, and the other end of the first clamp and the second clamp cooperate to form the second clamping part. When the shock absorber is clamped by the clamp, the first clamp, the second clamp and the shock absorber cooperate to form an inflation chamber. At least a portion of the inflation needle is located in the inflation chamber. The clamp includes an air passage, and the air passage communicates with the inflation chamber.

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