A tooling for quick assembly and disassembly of auxiliary gas springs

Abstract

This utility model discloses a tooling for quick assembly and disassembly of an auxiliary gas spring, comprising a sleeve with internal threads of opposite rotation directions at both ends; a first screw is threadedly connected to the first end of the sleeve, and a second screw is threadedly connected to the second end of the sleeve; a first pressure plate is provided at the other end of the first screw, which is adapted to the first end of the gas spring; a second pressure plate is provided at the other end of the second screw, which is adapted to the second end of the gas spring; the first pressure plate is movably disposed on the first screw, and / or the second pressure plate is movably disposed on the second screw. This utility model allows the screws on both sides to extend or retract simultaneously by rotating the sleeve, improving operating efficiency and achieving rapid compression of the gas spring; the compression amount is precisely controllable, facilitating accurate alignment with the mounting holes on the frame during gas spring installation, and effectively controlling the extension of the piston rod during gas spring disassembly, ensuring safe and reliable operation.

Description

Technical Field

[0001] This utility model relates to the field of installation tool technology, and more specifically, to a tooling for quick assembly and disassembly of an auxiliary gas spring. Background Technology

[0002] Gas springs 200 are common parts in commercial vehicles, often used as auxiliary supports for front and rear covers. They are also frequently used in vehicle production lines for chain tensioning and equipment vibration reduction. However, replacing gas springs 200 is quite troublesome. Due to their small size and high elasticity, directly compressing the gas spring 200 to align with the mounting holes during replacement is not only laborious but also poses a serious safety hazard. If the grip is unstable, the rebound of the gas spring 200 can easily injure the operator.

[0003] like Figure 1 As shown, the existing solution is to first fix the tail of the gas spring 200, and then use a rope 300, steel wire, etc. to pass through the U-shaped connector 21 at the head of the gas spring 200. The gas spring 200 is compressed by pulling the rope 300. When the piston rod 23 of the gas spring 200 is compressed into the installation position inside the cylinder 24, it is tightened.

[0004] On the one hand, this compression method requires continuous pressure to compress the gas spring 200, which is laborious and time-consuming. When replacing the conveyor gas spring 200 at height, the confined working space makes it difficult to exert force, increasing the risk. On the other hand, the compression stroke of the gas spring 200 is uncontrollable. The mounting holes at both ends of the gas spring 200 are difficult to accurately align with the mounting holes on the frame 400, resulting in long alignment times and low installation efficiency. Repeated alignment of the mounting holes leads to significant physical exertion for the operator, increasing the risk of injury from the gas spring 200 rebounding. Furthermore, because the gas spring 200 is relatively slender, the force applied by the rope 300 pulling method cannot guarantee a positive pressure. If the compression method is improper, the lateral force can easily cause the piston rod 23 of the gas spring 200 to bend and deform, damaging the gas spring 200 and rendering it unusable. Therefore, the rope 300 pulling method has disadvantages such as laborious operation, high risk of injury, and waste of the gas spring 200. Utility Model Content

[0005] To solve at least one of the above-mentioned technical problems, this utility model provides a tooling for quick assembly and disassembly of an auxiliary gas spring. By rotating the sleeve, the first screw and the second screw move simultaneously in opposite directions to compress the gas spring. The operation is simple and the safety is high.

[0006] The technical problem solved by this utility model is addressed by the following technical solution:

[0007] A tooling for quick assembly and disassembly of an auxiliary gas spring includes a sleeve with internal threads at both ends in opposite directions of rotation; a first screw is threaded to a first end of the sleeve, and a second screw is threaded to a second end of the sleeve; a first pressure plate is provided at the other end of the first screw, which is adapted to a first end of the gas spring; a second pressure plate is provided at the other end of the second screw, which is adapted to a second end of the gas spring; the first pressure plate is movably disposed on the first screw, and / or the second pressure plate is movably disposed on the second screw.

[0008] Furthermore, the first pressure plate is sleeved on the first screw, and the first nuts are provided on both sides of the first pressure plate and threadedly connected to the first screw, so as to facilitate the adjustment of the fastening position of the first pressure plate on the first screw.

[0009] Furthermore, the second pressure plate is sleeved on the second screw, and the two sides of the second pressure plate are provided with second nuts that are threadedly connected to the second screw, so as to facilitate the adjustment of the fastening position of the second pressure plate on the second screw.

[0010] Furthermore, one end of the first pressure plate is provided with a first through hole, through which the first screw passes. The other end of the first pressure plate is provided with a notch adapted to the first end of the gas spring. The through direction of the notch is consistent with the through direction of the first through hole. The notch has an opening, which is located on the end face of the first pressure plate away from the first through hole, or the opening is located on the side of the first pressure plate, so that the first pressure plate can clamp the end of the gas spring tail cylinder through the notch, ensuring reliable clamping.

[0011] Furthermore, when the opening is located on the end face of the first pressure plate away from the first through hole, a support plate extending towards the second pressure plate is provided at the opening. The support plate is detachably connected to the first pressure plates on both sides of the opening and can be supported at the bottom of the cylinder of the gas spring to prevent loosening.

[0012] Furthermore, the support plate is connected to the first pressure plate on both sides of the opening by two connectors; the connectors include pins and / or bolts, which facilitate the assembly and disassembly of the support plate.

[0013] Furthermore, one end of the second pressure plate is provided with a second through hole, through which the second screw passes. The other end of the second pressure plate is provided with a baffle that matches the second end of the gas spring, so that the second pressure plate can clamp the U-shaped connector of the gas spring head through the baffle, ensuring reliable clamping.

[0014] Furthermore, the free end of the baffle is provided with a retaining plate extending toward the first pressure plate, which can be supported at the bottom of the U-shaped connector of the gas spring head to prevent loosening.

[0015] Furthermore, when the first pressure plate is provided with a support plate, the distance between the top surface of the support plate and the top surface of the clamping plate is adapted to the distance between the bottom surface of the cylinder of the gas spring and the bottom surface of the U-shaped connector.

[0016] When the opening of the notch is located on the side of the first pressure plate, the distance between the side wall of the notch away from the first through hole and the top surface of the card plate is matched with the distance between the bottom surface of the tail connector of the gas spring near the cylinder and the bottom surface of the U-shaped connector.

[0017] Furthermore, the sleeve includes a receiving tube, with a third nut and a fourth nut fixedly disposed at both ends of the receiving tube, the threads of the third nut and the fourth nut rotating in opposite directions; the major diameter of the threads of the third nut and the fourth nut is smaller than the inner diameter of the receiving tube, making it easy to manufacture and low in cost.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] (1) The tooling has a simple and compact structure, is easy to manufacture, and is easy to replace and maintain quickly. By rotating the sleeve, the screws on both sides can be extended or retracted at the same time, reducing the number of rotations, improving operating efficiency, and achieving the purpose of quickly compressing the gas spring. Moreover, the compression amount is precisely controllable, making it easy to accurately align the mounting holes of the frame when installing the gas spring. The operation is convenient and quick. When disassembling the gas spring, the extension of the piston rod can be effectively controlled, and the operation is safe and reliable.

[0020] (2) The pressure plate is clamped to the screw by a nut, and the pressure plate is easy to replace; it is also convenient to adjust the fastening position of the pressure plate on the screw to adapt to gas springs of different lengths. Attached Figure Description

[0021] To better understand the above and other objects, features, advantages, and functions of this utility model, reference can be made to the embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate preferred embodiments of this utility model and do not limit the scope of this utility model in any way; the parts in the drawings are not drawn to scale.

[0022] Figure 1 A schematic diagram of the structure for installing a gas spring in an existing solution.

[0023] Figure 2 This is a schematic diagram of one embodiment of the tooling of this utility model.

[0024] Figure 3 This is a schematic diagram of the structure of the tooling in use according to one embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of another embodiment of the tooling of this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of another embodiment of the tooling of this utility model when in use.

[0027] Figure 6 This is a schematic diagram showing the adjustment of the pressure plate position in this utility model.

[0028] In the diagram: 100, tooling; 11, sleeve; 111, receiving tube; 112, third nut; 113, fourth nut; 12, first screw; 13, second screw; 14, first pressure plate; 141, notch; 142, support plate; 143, connector; 15, second pressure plate; 151, baffle; 152, clamping plate; 16, first nut; 17, second nut; 200, gas spring; 21, U-shaped connector; 22, tail connector; 23, piston rod; 24, cylinder; 300, rope; 400, frame; 41, screw. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments of this disclosure to aid understanding. These should be considered merely exemplary. Therefore, those skilled in the art should recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0030] In the description of this utility model, it should be noted that the term "comprising" and its variations indicate an open-ended inclusion, i.e., "including but not limited to". The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "and / or" when used to list two or more items means that it may include any one of the listed items, or any combination of two or more of the listed items. Furthermore, in the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] This utility model provides a tooling 100 for quick assembly and disassembly of an auxiliary gas spring 200, for reference. Figures 2-5As shown, the device includes a sleeve 11 with internal threads at both ends in opposite directions of rotation. A first screw 12 is threaded to the first end of the sleeve 11, and a second screw 13 is threaded to the second end. When the sleeve 11 rotates, it drives the first screw 12 and the second screw 13 to move simultaneously in opposite directions. The first screw 12 and the second screw 13 can simultaneously extend outwards from the sleeve 11 or simultaneously retract inwards from the sleeve 11, reducing the number of rotations and improving operating efficiency. A first pressure plate 14 is provided at the other end of the first screw 12, which is adapted to the first end of the gas spring 200. A second pressure plate 15 is provided at the other end of the second screw 13, which is adapted to the second end of the gas spring 200. When the first pressure plate 14 and the second pressure plate 15 press against both ends of the gas spring 200, pressure can be applied to both ends of the gas spring 200 to clamp the gas spring 200. When the sleeve 11 is rotated, the distance between the first pressure plate 14 and the second pressure plate 15 can be adjusted to increase or release pressure on the gas spring 200.

[0032] When installing the gas spring 200, the piston rod 23 of the gas spring 200 can be compressed to the installation position using the tooling 100. Specifically, the first pressure plate 14 presses against the first end of the gas spring 200, and the second pressure plate 15 presses against the second end of the gas spring 200. Rotating the sleeve 11 causes the first screw 12 and the second screw 13 to retract simultaneously into the sleeve 11, shortening the distance between the first pressure plate 14 and the second pressure plate 15. This pushes the piston rod 23 of the gas spring 200 into the cylinder 24 until the piston rod 23 is compressed to the installation position. The tooling 100 is then used to clamp the gas spring 200, maintaining its compressed state. Both ends of the gas spring 200 are then fixed to the frame 400 using screws 41, thus completing the installation of the gas spring 200. Then rotate the sleeve 11 to slightly extend the first screw 12 and the second screw 13 outward from the sleeve 11, increasing the distance between the first pressure plate 14 and the second pressure plate 15. This causes the fixture 100 to release the gas spring 200, and then the fixture 100 can be removed. By installing the gas spring 200 through the fixture 100, the purpose of quickly compressing the gas spring 200 can be achieved, and the compression amount can be precisely controlled, making it easy to accurately align with the mounting holes of the frame 400. The operation is convenient and quick.

[0033] When disassembling the gas spring 200, since both ends of the gas spring 200 are fixed to the frame 400 by screws 41, if the screws 41 are removed directly, the ends of the gas spring 200 will lose their restraint, and the piston rod 23 will quickly extend and pop out directly from the cylinder 24, which could easily cause danger. Therefore, when disassembling the gas spring 200, the tool 100 can be used to clamp the gas spring 200 first, restraining both ends of the gas spring 200 and improving the safety of operation. Specifically, the first pressure plate 14 presses against the first end of the gas spring 200, the second pressure plate 15 presses against the second end of the gas spring 200, the sleeve 11 is rotated, and the first screw 12 and the second screw 13 are retracted into the sleeve 11. The gas spring 200 is clamped by the tool 100, and then the screws 41 at both ends of the gas spring 200 are removed, so that the gas spring 200 can be removed from the frame 400. Rotate the sleeve 11 again to gradually extend the first screw 12 and the second screw 13 outward from the sleeve 11, gradually increasing the distance between the first pressure plate 14 and the second pressure plate 15. The piston rod 23 will then gradually extend until it reaches its free state. Slightly rotate the sleeve 11 again to release the gas spring 200. By using this fixture 100 to remove the gas spring 200, the extension of the piston rod 23 can be effectively controlled, making the extension process of the gas spring 200 piston rod 23 safe and controllable, and ensuring safe and reliable operation.

[0034] refer to Figure 6As shown, when the gas spring 200 is in its free state, the two pressure plates press against both ends of the gas spring 200. At this time, the first screw 12 is located at position A1 inside the sleeve 11, and the second screw 13 is located at position B1 inside the sleeve 11. The distance between the two pressure plates is the free state length L0 of the gas spring 200. When the lengths of the two screws and the sleeve 11 are determined, the maximum adjustment of the distance between the two pressure plates is the distance L1 between the free ends of the two screws inside the sleeve 11. For ease of understanding and description, it is assumed that the compression amount of the piston rod 23 is set to K when it is compressed from the free state to the installation position. When L1 < K, even if the sleeve 11 is rotated until the free ends of the two screws contact each other, the piston rod 23 cannot be compressed to the installation position. To accommodate gas springs 200 of different lengths, a first pressure plate 14 is movably mounted on a first screw 12, and / or a second pressure plate 15 is movably mounted on a second screw 13. The position of at least one of the first pressure plate 14 and the second pressure plate 15 on the corresponding screw can be adjusted to reduce the length of the screw corresponding to the adjusted pressure plate extending into the sleeve 11, i.e., adjusting the fastening position of the pressure plate on the screw inward. When the distance between the two pressure plates is L0, the first screw 12 is located at position A2 in the sleeve 11, and the second screw 13 is located at position B2 in the sleeve 11. The distance between the free ends of the two screws in the sleeve 11 increases to L2, where L2≥K. By rotating the sleeve 11, the piston rod 23 can be compressed from the free state to the installation position. By adjusting the first pressure plate 14 and / or the second pressure plate 15 to the fastening position of the corresponding screw, the maximum compression of the tooling 100 can be adjusted. This allows the gas spring 200 to accommodate more compression requirements without needing to replace the sleeve 11 and screw of other lengths.

[0035] It is understandable that when the gas spring 200 is in the free state, the distance between the two pressure plates and the sleeve 11 is greater than or equal to 1 / 2K. When the piston rod 23 is compressed from the free state to the installation position, there is a sufficient gap between the two pressure plates and the sleeve 11 to allow the pressure plates to move.

[0036] In some embodiments, the first pressure plate 14 is sleeved on the first screw 12, and the first pressure plate 14 has first nuts 16 threadedly connected to the first screw 12 on both sides. The first pressure plate 14 is easy to disassemble and replace. After the first pressure plate 14 is sleeved on the first screw 12, it can be clamped with two first nuts 16. Moreover, the fastening position of the first pressure plate 14 on the first screw 12 can be easily adjusted.

[0037] In some embodiments, the second pressure plate 15 is sleeved on the second screw 13, and second nuts 17 threadedly connected to the second screw 13 are provided on both sides of the second pressure plate 15. The second pressure plate 15 is easy to disassemble and replace. After the second pressure plate 15 is sleeved on the second screw 13, it can be clamped with two second nuts 17, and the fastening position of the second pressure plate 15 on the second screw 13 can be easily adjusted. The first pressure plate 14 and the second pressure plate 15 are clamped to the corresponding screws by two nuts, which also makes the clamping end faces of the first pressure plate 14 and the second pressure plate 15 basically parallel.

[0038] In some embodiments, reference Figures 2-5 As shown, one end of the first pressure plate 14 is provided with a first through hole, through which the first screw 12 passes, allowing the first pressure plate 14 to be easily fitted onto the first screw 12. Some gas springs 200 have a tail connector 22 smaller than the diameter of the cylinder body 24, forming a stepped structure at the tail of the gas spring 200. The first pressure plate 14 is adapted to the first end of the gas spring 200, which can be configured as the tail of the gas spring 200. To securely clamp the tail of the gas spring 200, a notch 141 adapted to the first end of the gas spring 200 can be provided at the other end of the first pressure plate 14. The through direction of the notch 141 is consistent with the through direction of the first through hole. The notch 141 has an opening, such as... Figure 2 As shown, the opening can be located on the end face of the first pressure plate 14 away from the first through hole. In this case, the notch 141 can be configured as an n-shaped notch 141. Figure 4 As shown, the opening can also be located on the side of the first pressure plate 14. In this case, the notch 141 can be a C-shaped notch 141. When clamping the gas spring 200, the opening of the first pressure plate 14 can be passed through the tail connector 22 of the gas spring 200, and the first pressure plate 14 can be snapped onto the step of the cylinder body 24. The snapping is secure. When disassembling the fixture 100, the first pressure plate 14 can also be separated from the tail connector 22 from the opening and removed. The operation is convenient and flexible. The first pressure plate 14 can be a rectangular plate with a first through hole at one end and a notch 141 with the through direction consistent with the first through hole at the other end.

[0039] In some embodiments, such as Figure 2 and Figure 3 As shown, when the opening is located on the end face of the first pressure plate 14 away from the first through hole, a support plate 142 extending towards the second pressure plate 15 is provided at the opening. The support plate 142 is detachably connected to the first pressure plates 14 on both sides of the opening. Figure 3As shown, when the tail of the gas spring 200 is clamped by the first pressure plate 14, after the step of the cylinder body 24 is clamped by the notch 141, it can also be supported by the support plate 142 at the bottom of the cylinder body 24 of the gas spring 200 to prevent the tail of the gas spring 200 from coming loose. When the support plate 142 is removed, the opening of the notch 141 can be opened so that the tail connector 22 of the gas spring 200 can be inserted into or removed from the opening.

[0040] In some embodiments, the support plate 142 is connected to the first pressure plates 14 on both sides of the opening via two connectors 143. Preferably, the two connectors 143 can be two pins, two bolts, or one pin and one bolt, facilitating the assembly and disassembly of the support plate 142. For example, the two connectors 143 can be two pins. Two third through holes can be provided on the first pressure plates 14 on both sides of the opening, and two corresponding fourth through holes can be provided on the support plate 142. The two pins are clearance-fitted with the third and fourth through holes. Passing the pins through the third and fourth through holes connects the support plate 142 to the second pressure plate 15. Removing the pins removes the support plate 142, making the operation convenient and quick. Preferably, when removing the support plate 142, one pin is removed, and the support plate 142 rotates along the other pin to open the notch 141, facilitating the removal of the first pressure plate 14 from the opening. For ease of operation, the pins can be L-shaped.

[0041] In some embodiments, reference Figures 2-5 As shown, one end of the second pressure plate 15 is provided with a second through hole, through which the second screw 13 passes, allowing the second pressure plate 15 to be easily fitted onto the second screw 13. Some gas springs 200 have a U-shaped connector 21 with a U-shaped groove at the head. The second pressure plate 15 is adapted to the second end of the gas spring 200, which is designated as the head. To securely clamp the gas spring 200 head, a baffle 151 adapted to the second end of the gas spring 200 can be provided at the other end of the second pressure plate 15. The second pressure plate 15 can press against the bottom wall of the U-shaped groove through the baffle 151, thereby clamping the U-shaped connector 21 of the gas spring 200 head reliably.

[0042] In some embodiments, the free end of the baffle 151 is provided with a clamping plate 152 extending toward the first pressure plate 14. When the gas spring 200 head is clamped by the second pressure plate 15, after the baffle 151 is pressed against the bottom wall of the U-shaped connector 21 of the gas spring 200 head, the clamping plate 152 can lock the bottom surface of the U-shaped connector 21 to prevent the baffle 151 from slipping off. The second pressure plate 15 can be T-shaped. When the screw 41 is installed on the U-shaped connector 21 of the gas spring 200 head, there is a gap between the baffle 151 and the screw 41. The length of the clamping plate 152 extending toward the first pressure plate 14 can be set according to the size of the gap, so that the length of the clamping plate 152 is smaller than the size of the gap. For example, the length of the clamping plate 152 can be set to 1mm, 2mm, 3mm, 4mm, 5mm, etc. With a smaller length of the clamping plate 152, the baffle 151 can be moved slightly outward toward the screw 41 to disengage the clamping plate 152 from the U-shaped connector 21.

[0043] In some embodiments, reference Figure 3 As shown, when the first pressure plate 14 is provided with a support plate 142, the distance between the top surface of the support plate 142 and the top surface of the clamping plate 152 is adapted to the distance between the bottom surface of the cylinder body 24 of the gas spring 200 and the bottom surface of the U-shaped connector 21. (Reference) Figure 5 As shown, when the opening of the notch 141 is located on the side of the first pressure plate 14, the distance between the side wall of the notch 141 away from the first through hole and the top surface of the card plate 152 is matched with the distance between the bottom surface of the tail connector 22 of the gas spring 200 near the cylinder 24 and the bottom surface of the U-shaped connector 21.

[0044] When the first pressure plate 14 is provided with a support plate 142, the support plate 142 can limit the distance between the first screw 12 and the tail cylinder 24 of the gas spring 200, and the clamping plate 152 can limit the distance between the second screw 13 and the U-shaped connector 21 at the head of the gas spring 200. The distance between the top surface of the support plate 142 and the top surface of the clamping plate 152 is adapted to the distance between the bottom surface of the cylinder 24 of the gas spring 200 and the bottom surface of the U-shaped connector 21. When the tooling 100 clamps the gas spring 200, the extension direction of the first screw 12 and the second screw 13 can be parallel to the axial direction of the gas spring 200, that is, the movement direction of the first screw 12 and the second screw 13 is consistent with the movement direction of the piston rod 23 of the gas spring 200, so that the gas spring 200 is compressed linearly along its axial direction, preventing the gas spring 200 from being damaged by tilted compression.

[0045] Similarly, when the opening of notch 141 is located on the side of the first pressure plate 14, the side wall of notch 141 away from the first through hole can limit the distance between the first screw 12 and the tail connector 22 of the gas spring 200 near the cylinder 24. At this time, notch 141 is set as a C-shaped notch 141, and the tail connector 22 of the gas spring 200 can be inserted or removed from the opening of notch 141 to achieve clamping or removal of the tooling 100. Specifically, when disassembling the gas spring 200, both ends of the gas spring 200 are tightened with screws 41. When using the tooling 100 to clamp the gas spring 200, the first nut 16 can be slightly loosened. First, the second pressure plate 15 clamps the U-shaped connector 21 of the gas spring 200 head, and then the first pressure plate 14 is rotated around the first screw 12 so that the tail connector 22 of the gas spring 200 passes through the opening of notch 141, and the first pressure plate 14 is clamped to the tail connector 22 of the gas spring 200. When removing the tooling 100 after installing the gas spring 200, the first nut 16 can be loosened slightly, the first pressure plate 14 can be rotated around the first screw 12, so that the tail connector 22 of the gas spring 200 can be removed from the opening of the notch 141, and then the second pressure plate 15 can be removed from the U-shaped connector 21.

[0046] When the gap between the baffle 151 of the second pressure plate 15 and the side wall of the U-shaped connector 21 and the screw 41 is sufficient, when disassembling the gas spring 200, after inserting the baffle 151 into the U-shaped connector 21, the entire fixture 100 can be directly moved or rotated to insert the tail connector 22 of the gas spring 200 through the opening of the notch 141, and then the clamping plate 152 is supported at the bottom of the U-shaped connector 21. When disassembling the fixture 100 after installing the gas spring 200, after removing the clamping plate 152 from the U-shaped connector 21, the entire fixture 100 can be directly moved or rotated to remove the tail connector 22 of the gas spring 200 through the opening of the notch 141, and then the baffle 151 is removed from the U-shaped connector 21.

[0047] In some embodiments, the sleeve 11 includes a receiving tube 111, with a third nut 112 and a fourth nut 113 fixedly disposed at both ends of the receiving tube 111, respectively. The threads of the third nut 112 and the fourth nut 113 rotate in opposite directions; the major diameter of the threads of the third nut 112 and the fourth nut 113 is smaller than the inner diameter of the receiving tube 111. The first screw 12 and the second screw 13 can use screws of the same specification, and the third nut 112 and the fourth nut 113 can use nuts of the same specification that are compatible with the first screw 12 and the second screw 13. One nut is welded to one end of the receiving tube 111, and the other nut is welded to the other end of the receiving tube 111 in the opposite direction. The sleeve 11 has a simple structure, is easy to manufacture, and has low cost. Moreover, the screw and the sleeve 11 only need to be threadedly connected at the third nut 112 and the fourth nut 113 at the end of the sleeve, while the receiving tube 111 part is clearance-fitted, making the extension and retraction of the screw in the sleeve 11 more convenient and faster.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tooling for quick assembly and disassembly of an auxiliary gas spring, characterized in that, The device includes a sleeve with internal threads at both ends in opposite directions of rotation; a first screw is threaded to a first end of the sleeve, and a second screw is threaded to a second end of the sleeve; a first pressure plate is provided at the other end of the first screw, which is adapted to a first end of a gas spring; a second pressure plate is provided at the other end of the second screw, which is adapted to a second end of the gas spring; the first pressure plate is movably disposed on the first screw, and / or the second pressure plate is movably disposed on the second screw.

2. The tooling for quick disassembly of a supplemental gas spring of claim 1, wherein, The first pressure plate is sleeved on the first screw, and the first nuts that are threadedly connected to the first screw are provided on both sides of the first pressure plate.

3. The tooling for quick disassembly of a gas assist spring of claim 1 or 2, wherein, The second pressure plate is sleeved on the second screw, and the second pressure plate has second nuts on both sides that are threadedly connected to the second screw.

4. The tooling for rapid disassembly of a supplemental gas spring of claim 1, wherein, One end of the first pressure plate is provided with a first through hole, through which the first screw passes. The other end of the first pressure plate is provided with a notch that matches the first end of the gas spring. The through direction of the notch is consistent with the through direction of the first through hole. The notch has an opening, which is located on the end face of the first pressure plate away from the first through hole, or the opening is located on the side of the first pressure plate.

5. The tooling for rapid disassembly of a supplemental gas spring of claim 4, wherein, When the opening is located on the end face of the first pressure plate away from the first through hole, a support plate extending toward the second pressure plate is provided at the opening, and the support plate is detachably connected to the first pressure plates on both sides of the opening.

6. The tooling for quick disassembly of a supplemental gas spring of claim 5, wherein, The support plate is connected to the first pressure plate on both sides of the opening by two connectors; the connectors include pins and / or bolts.

7. The tooling for quick disassembly of a gas assist spring of claim 4 or 5 or 6, wherein, The second pressure plate has a second through hole at one end, through which the second screw passes, and a baffle that matches the second end of the gas spring at the other end.

8. The tooling for quick disassembly of a supplemental gas spring of claim 7, wherein, The free end of the baffle is provided with a clamping plate extending toward the first pressure plate.

9. The tooling for quick disassembly of a supplemental gas spring of claim 8, wherein, When the first pressure plate is provided with a support plate, the distance between the top surface of the support plate and the top surface of the clamping plate is adapted to the distance between the bottom surface of the cylinder of the gas spring and the bottom surface of the U-shaped connector. When the opening of the notch is located on the side of the first pressure plate, the distance between the side wall of the notch away from the first through hole and the top surface of the card plate is matched with the distance between the bottom surface of the tail connector of the gas spring near the cylinder and the bottom surface of the U-shaped connector.

10. The tooling for rapid disassembly of a supplemental gas spring of claim 1, wherein, The sleeve includes a receiving tube, and a third nut and a fourth nut are fixedly provided at both ends of the receiving tube, respectively. The threads of the third nut and the fourth nut rotate in opposite directions; the major diameter of the threads of the third nut and the fourth nut is smaller than the inner diameter of the receiving tube.

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