Disassembling tool

Abstract

The utility model relates to the technical field of lifting chair discloses a dismounting tool, and the dismounting tool includes: clamping unit, including clamping part and setting on the locking part of clamping part, separation unit, including lever part and top pressure part, the lever part is with clamping part as fulcrum, can swing and set up on clamping part, and the one end of lever part is formed hold end away from clamping part, and the other end forms the matching end, and top pressure part sets up in the matching end, the utility model sets up separation unit on clamping unit, and clamping part can be with gas spring effective fixed through locking part, prevents the slippage or deviation when dismounting, ensures the stable force, and the operator uses lever part when using, and through the lever principle drives top pressure part and exerts force towards the base, and gas spring can be from the base under the action of reaction force and disengages, compared with traditional dismounting method, the dismounting tool of this embodiment can complete the dismounting of gas spring quickly and stably, and the dismounting maintenance difficulty of gas spring is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of height-adjustable chair technology, specifically to disassembly fixtures. Background Technology

[0002] In height-adjustable chairs such as office chairs and gaming chairs, the gas spring is the core component that enables its height adjustment function. Since the gas spring is the main load-bearing component in a height-adjustable chair, it inevitably needs to be replaced after long-term use. However, when a gas spring is damaged or needs replacement, the disassembly process is often very difficult.

[0003] Currently, the disassembly methods for existing gas springs mainly rely on traditional tools, such as pipe wrenches and hammers. Since gas springs are usually fixed to chair legs or seats with interference fits or strong adhesive, using traditional tools is not only inconvenient, but also prone to slippage and misalignment when used with gas springs, resulting in low disassembly efficiency. Therefore, the existing disassembly methods for gas springs are time-consuming and labor-intensive. Utility Model Content

[0004] In view of this, the present invention provides a disassembly fixture to solve the problem that the existing gas spring disassembly methods are time-consuming and labor-intensive.

[0005] In a first aspect, this utility model provides a disassembly fixture for disassembling a gas spring on a base, comprising: a clamping unit, including a clamping part and a locking part disposed on the clamping part, the clamping part having a clamping space for the gas spring to pass through, the clamping part forming a clamping surface corresponding to the wall of the clamping space, the locking part having a locking state for the clamping surface to abut against the gas spring, and an unlocking state for separating the clamping surface from the gas spring; and a separation unit, including a lever part and a pressing part, the lever part being pivotally disposed on the clamping part with the clamping part as a fulcrum, one end of the lever part away from the clamping part forming a gripping end, and the other end forming a mating end, the pressing part being disposed on the mating end, the end of the pressing part away from the clamping part forming a pressing end for abutting against the base.

[0006] Beneficial effects: By setting a separation unit on the clamping unit, the clamping part can be effectively fixed to the gas spring through the locking part, preventing slippage or displacement during disassembly and ensuring stable force application. During use, the operator uses the lever part to drive the top pressure part to apply force towards the base through the lever principle. Under the action of the reaction force, the gas spring can be disassembled from the base. Compared with the traditional disassembly method, the disassembly fixture of this embodiment can quickly and stably complete the disassembly of the gas spring, greatly reducing the difficulty of disassembling and maintaining the gas spring, and effectively solving the problem of time-consuming and labor-intensive disassembly methods of existing gas springs.

[0007] In one optional embodiment, the clamping part includes a first clamp and a second clamp, which together form a clamping space. The first clamp and the second clamp are locked together by a locking part, thereby clamping the gas spring.

[0008] Beneficial effects: The clamping unit has a simple and reliable locking mechanism, which can clamp the gas spring while simultaneously locking the first and second clamps through the locking part.

[0009] In one alternative embodiment, the locking part includes a threaded screw, a first nut, and a second nut;

[0010] The first clamp is provided with a first locking channel, the second clamp is provided with a second locking channel, and the screw passes through the first locking channel and the second locking channel;

[0011] The screw is engaged with the first clamp via a first nut and with the second clamp via a second nut, with at least a portion of the first and second clamps located between the first and second nuts.

[0012] Beneficial effects: The locking part is simple and reliable. It locks the first and second clamps by the cooperation of a screw and two nuts. Since the positions of the first and second nuts can be flexibly adjusted according to the position of the outer wall of the clamp, the locking part can be applied to clamping parts of various sizes and specifications, which can effectively improve the flexibility of the locking part. In addition, since the locking part is a detachable structure, when the locking part fails, it is only necessary to remove and replace the locking part, and the disassembly fixture can continue to be used without completely replacing the disassembly fixture.

[0013] In one optional embodiment, the first locking channel is a first through groove provided on the outer wall of the first clamp, and the second locking channel is a second through groove provided on the outer wall of the second clamp.

[0014] The second through groove also has a receiving groove, and the second nut is set in the receiving groove.

[0015] Beneficial effects: With this type of locking channel, after adjusting the first and second nuts on the screw to the appropriate positions, the locking part can be directly placed into the through groove, which eliminates the need to remove the first and second nuts and insert the screw separately, thus improving the ease of use of the disassembly tooling. In addition, the second nut can be placed directly in the receiving groove, and there is no need to adjust the position of the second nut when locking; simply tighten the first nut to achieve locking.

[0016] In one optional embodiment, the clamping part further includes a rotating shaft. The end of the second clamp away from the first clamp is provided with a rotating hole. The rotating hole is connected to the second through groove and the axes of the two are perpendicular. The rotating hole is located on the side of the receiving groove away from the first clamp. The rotating shaft is rotatably disposed in the rotating hole. A through hole is provided on the rotating shaft along its own radial direction. The screw is movably inserted through the through hole.

[0017] Beneficial effects: Since the shaft can rotate, the screw can be swung around the axis of the through hole directly, thereby removing the screw from the first through slot and / or the second through slot. At this time, the first clamp and the second clamp can be separated, and there is no need to completely remove the screw from the second clamp, which effectively improves the ease of use of the disassembly fixture.

[0018] In one optional embodiment, the locking part includes a threaded screw and a first nut; the first clamp is provided with a first locking channel, the screw is fixedly disposed in the second clamp, the screw passes through the first locking channel and extends out of the first locking channel; the screw abuts against the first clamp through the first nut.

[0019] Beneficial effects: This type of screw is an integral structure with the second clamp, and the number of movable parts in the locking part is small. When locking or unlocking, only the first nut needs to be rotated, making it simple and quick to use.

[0020] In one alternative embodiment, the outer wall of the clamping portion extends outward along the radial direction of the gas spring to form a support platform;

[0021] The lever is swayably mounted on the support platform via a lever axis;

[0022] The top pressure part has a mating groove extending along the axial direction of the gas spring, and the top pressure part is sleeved on the outside of the gas spring through the mating groove.

[0023] Beneficial effects: The overall structure of the separation unit is simple and reliable. The top pressure part cooperates with the gas spring through the mating groove, which can improve the concentricity of the top pressure part and the gas spring. When the top pressure part applies force to the base, it can make the angle between the direction of the force and the axis of the gas spring smaller, and it is not easy to generate bias force during disassembly.

[0024] In one optional embodiment, along the axial direction of the gas spring, the mating end is located on one side of the clamping part, the mating end is provided with a relief groove for accommodating the gas spring, and the end face of the mating end away from the clamping part abuts against the end face of the pressing part.

[0025] Beneficial effects: With this type of mating end, the force applied to the top pressure part extends along the axial direction of the gas spring, making the top pressure part more evenly stressed and avoiding the generation of biased force.

[0026] In one optional embodiment, a through-hole is provided on the mating end along the axial direction of the gas spring, and the end of the pressing part extends downward to form a plug. The pressing part is inserted into the hole through the plug. Along the radial direction of the gas spring, the width of the hole is greater than the width of the plug.

[0027] The insert block is hinged to the mating end via a second hinge shaft. The extension direction of the second hinge shaft is consistent with that of the lever shaft. The insert block is provided with a strip hole for the second hinge shaft to pass through. The strip hole extends along the axial direction of the gas spring.

[0028] Beneficial effects: During the swinging process of the mating end, the mating end itself moves along an arc-shaped trajectory. With this connection method between the mating end and the top pressing part, the top pressing part can move slightly relative to the mating end, allowing the top pressing part to swing relative to the mating end. This effectively avoids the top pressing part swinging during the movement of the mating end, which would cause the direction of the force applied by the top pressing part to change, thus improving the reliability of the disassembly tooling.

[0029] In one alternative embodiment, a protrusion is formed on the end face of the top pressure end along the edge of the mating groove in the axial direction of the gas spring; and / or, the separation unit further includes a sleeve, which is detachably fitted onto the gripping end, the outer wall of the gripping end is provided with a limiting block, and the sleeve is provided with a limiting groove for cooperating with the limiting block, the limiting groove extending in the axial direction of the sleeve.

[0030] Beneficial effects: The protrusion allows the force to be concentrated at the connection between the base and the gas spring, enabling the gas spring to separate from the base more quickly. In addition, the sleeve at the gripping end can effectively extend the length of the power arm in the lever, making it easier to use the disassembly tool. Furthermore, the setting of the limiting groove and the limiting block can effectively prevent the relative rotation between the sleeve and the gripping end during the use of the disassembly tool, thereby improving the stability and reliability of the disassembly tool. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional schematic diagram of a disassembly fixture according to an embodiment of the present utility model;

[0033] Figure 2 for Figure 1 A three-dimensional schematic diagram of the disassembly fixture from another perspective;

[0034] Figure 3 for Figure 1 A three-dimensional schematic diagram of the clamping unit of the disassembly fixture shown;

[0035] Figure 4 for Figure 3 A cross-sectional schematic diagram of the clamping unit shown;

[0036] Figure 5 for Figure 3 A three-dimensional schematic diagram of the clamping unit when the locking part is in the unlocked state;

[0037] Figure 6 for Figure 1 A three-dimensional schematic diagram of the separation unit of the disassembly fixture shown;

[0038] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the separation unit.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Clamping unit;

[0041] 101. Clamping part; 1011. Clamping space; 1012. Clamping surface; 1013. First clamp; 10131. First through slot; 1014. Second clamp; 10141. Second through slot; 10142. Receiving slot; 10143. Rotating shaft; 10144. Rotating hole; 10145. Through hole; 1015. First hinge shaft; 1016. Support platform;

[0042] 102. Locking part; 1021. Screw; 1022. First nut; 1023. Second nut;

[0043] 103. First locking channel; 104. Second locking channel;

[0044] 2. Separation unit;

[0045] 201. Lever section; 2011. Grip end; 20111. Limiting block; 2012. Mating end; 20121. Clearance groove; 20122. Insertion hole; 2013. Lever shaft;

[0046] 202, Top pressing part; 2021, Top pressing end; 20211, Protrusion; 2022, Mating groove; 2023, Insert block; 20231, Strip hole;

[0047] 203. Second hinge shaft; 204. Sleeve. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0049] The following is combined Figures 1 to 7 The following describes embodiments of the present invention.

[0050] According to an embodiment of the present invention, in one aspect, a disassembly fixture is provided for disassembling a gas spring on a base, comprising: a clamping unit 1 and a separation unit 2.

[0051] The clamping unit 1 includes a clamping part 101 and a locking part 102 disposed on the clamping part 101. The clamping part 101 has a clamping space 1011 for the gas spring to pass through. The clamping part 101 forms a clamping surface 1012 corresponding to the wall surface of the clamping space 1011. The locking part 102 has a locking state in which the clamping surface 1012 abuts against the gas spring, and an unlocking state in which the clamping surface 1012 is separated from the gas spring.

[0052] The separation unit 2 includes a lever portion 201 and a pressing portion 202. The lever portion 201 is pivotally mounted on the clamping portion 101 with the clamping portion 101 as the fulcrum. One end of the lever portion 201 away from the clamping portion 101 forms a gripping end 2011, and the other end forms a mating end 2012. The pressing portion 202 is disposed on the mating end 2012, and one end of the pressing portion 202 away from the clamping portion 101 forms a pressing end 2021 for abutting against the base.

[0053] The disassembly fixture of this embodiment has a separation unit 2 on the clamping unit 1. The clamping part 101 can be effectively fixed to the gas spring by the locking part 102 to prevent slippage or displacement when disassembling the gas spring and ensure stable force application. When in use, the operator uses the lever part 201 to drive the top pressure part 202 to apply force to the base through the lever principle. The gas spring can be disengaged from the base under the action of the reaction force. Compared with the traditional disassembly method, the disassembly fixture of this embodiment can quickly and stably complete the disassembly of the gas spring, greatly reducing the difficulty of disassembling the gas spring and effectively solving the problem of time-consuming and laborious disassembly methods of existing gas springs.

[0054] It should be noted that the specific structure of the base is not limited. It can be the lower shell of the seat cushion for mounting the seat cushion, the chassis of the seat, or the foot bracket that supports the seat. As long as it is a structure that is connected to the gas spring, the gas spring can be disassembled using the disassembly tool of this embodiment.

[0055] In one possible implementation, an anti-slip pad is provided on the clamping surface 1012 to further improve the clamping reliability between the clamping part 101 and the gas spring.

[0056] Specifically, there are no restrictions on the type of anti-slip mat; it can be nylon mat, rubber mat, or metal mat, as long as it can provide anti-slip properties.

[0057] In one possible implementation, such as Figure 1 and Figure 2 As shown, the clamping part 101 includes a first clamp 1013 and a second clamp 1014. The first clamp 1013 and the second clamp 1014 together form a clamping space 1011. The first clamp 1013 and the second clamp 1014 are locked by the locking part 102, thereby clamping the gas spring. The locking method of the clamping unit 1 is simple and reliable. The gas spring can be clamped at the same time as the first clamp 1013 and the second clamp 1014 are locked by the locking part 102.

[0058] It is understood that, as an alternative implementation, a separate locking structure can also be provided, and the locking part 102 only serves to connect the first clamp 1013 and the second clamp 1014. The outer wall of the first clamp 1013 and / or the second clamp 1014 is provided with a hole communicating with the clamping space 1011. The locking structure passes through the hole into the clamping space 1011 and uses the locking structure to abut the gas spring against the clamping surface 1012, thereby fixing the gas spring and the clamping part 101 relative to each other.

[0059] In one possible implementation, such as Figure 1 and Figure 3 As shown, the locking part 102 includes a threaded screw 1021, a first nut 1022, and a second nut 1023;

[0060] The first clamp 1013 is provided with a first locking channel 103, the second clamp 1014 is provided with a second locking channel 104, and the screw 1021 passes through the first locking channel 103 and the second locking channel 104;

[0061] The screw 1021 abuts against the first clamp 1013 via the first nut 1022, and the screw 1021 abuts against the second clamp 1014 via the second nut 1023. At least a portion of the first clamp 1013 and the second clamp 1014 are located between the first nut 1022 and the second nut 1023.

[0062] The locking part 102 is simple and reliable. It locks the first clamp 1013 and the second clamp 1014 by the cooperation of the screw 1021 and two nuts. Since the positions of the first nut 1022 and the second nut 1023 can be flexibly adjusted according to the position of the outer wall of the clamp, the locking part 102 can be applied to clamping parts 101 of various sizes and specifications, which can effectively improve the flexibility of use of the locking part 102. In addition, since the locking part 102 is a detachable structure, when the locking part 102 fails, it is only necessary to remove the locking part 102 for replacement, and the disassembly fixture can continue to be used without completely replacing the disassembly fixture.

[0063] Specifically, the specific form of the first locking channel 103 and the second locking channel 104 is not limited. They can be hole-shaped or groove-shaped, as long as it is convenient for the screw 1021 to pass through.

[0064] Furthermore, the specific mating position of each nut and clamp is not limited. It can be that the nut and the end face of the clamp mate, or one of the clamps can be provided with a slot for accommodating the nut, with the nut placed in the slot and the clamp and screw 1021 connected by the nut.

[0065] In one possible implementation, such as Figure 3 and Figure 4 As shown, the first locking channel 103 is a first through groove 10131 provided on the outer wall of the first clamp 1013, and the second locking channel 104 is a second through groove 10141 provided on the outer wall of the second clamp 1014; a receiving groove 10142 is also provided in the second through groove 10141, and the second nut 1023 is provided in the receiving groove 10142.

[0066] With this type of locking channel, after adjusting the first nut 1022 and the second nut 1023 on the screw 1021 to the appropriate position, the locking part 102 can be directly placed into the through groove. This eliminates the need to remove the first nut 1022 and the second nut 1023 and separately thread the screw 1021, improving the ease of use of the disassembly tooling. In addition, the second nut 1023 can be directly placed in the receiving groove 10142. When locking, there is no need to adjust the position of the second nut 1023; simply tighten the first nut 1022 to achieve locking.

[0067] It is understood that, as an alternative implementation, the receiving groove 10142 can also be provided in the first through groove 10131. The receiving groove 10142 is used to receive the first nut 1022. In this case, locking can also be achieved by tightening the second nut 1023.

[0068] In one possible implementation, such as Figure 4 and Figure 5As shown, the clamping part 101 also includes a rotating shaft 10143. A rotating hole 10144 is provided at the end of the second clamp 1014 away from the first clamp 1013. The rotating hole 10144 communicates with the second through groove 10141, and their axes are perpendicular. The rotating hole 10144 is located on the side of the receiving groove 10142 opposite to the first clamp 1013. The rotating shaft 10143 is rotatably disposed in the rotating hole 10144. A through hole 10145 is provided on the rotating shaft 10143 along its radial direction. The screw 1021 is movably inserted through the through hole 10145, passing through the second through groove 1014. A rotating shaft 10143 is provided in section 1 for the screw 1021 to pass through. When the first clamp 1013 and the second clamp 1014 are separated, since the rotating shaft 10143 can rotate, the screw 1021 can be directly swung around the axis of the through hole 10145, thereby removing the screw 1021 from the first through groove 10131 and / or the second through groove 10141. At this time, the first clamp 1013 and the second clamp 1014 can be separated, and it is not necessary to completely remove the screw 1021 from the second clamp 1014, which effectively improves the ease of use of the disassembly fixture.

[0069] It is understood that, as an alternative implementation, the pivot 10143 may also be disposed in the first clamp 1013.

[0070] Specifically, since it is not necessary to completely remove the screw 1021 from the second clamp 1014, the loss of the screw 1021 and nut components can be avoided when performing locking or unlocking operations. In addition, the screw 1021 is movably inserted into the through hole 10145, which also facilitates the replacement of the screw 1021 and nut.

[0071] Furthermore, the screw 1021 can be fixedly connected to the rotating shaft 10143, making the screw 1021 and the rotating shaft 10143 an integral structure. In this case, the rotating shaft 10143 can swing, but it cannot be removed from the second clamp 1014, which can completely avoid the loss of the screw 1021 and nut. This type of disassembly fixture is pre-assembled at the factory, and users do not need to assemble it themselves. It is simple to operate and can effectively reduce the difficulty of using the disassembly fixture.

[0072] In another embodiment, the locking part 102 includes a threaded screw 1021 and a first nut 1022; the first clamp 1013 is provided with a first locking channel 103, the screw 1021 is fixedly disposed on the second clamp 1014, the screw 1021 passes through the first locking channel 103 and extends out of the first locking channel 103; the screw 1021 abuts against the first clamp 1013 through the first nut 1022. In this form, the screw 1021 and the second clamp 1014 are an integral structure, the locking part 102 has fewer movable parts, and when locking or unlocking, only the first nut 1022 needs to be rotated, making it simple and quick to use.

[0073] In one possible implementation, such as Figure 5 As shown, along the radial direction of the gas spring, one end of the first clamp 1013 and the second clamp 1014 are hinged by the first hinge shaft 1015, and the other end is locked by the locking part 102. The first hinge shaft 1015 allows the first clamp 1013 and the second clamp 1014 to swing relative to each other. The two clamps do not need to be completely separated when in use, which can effectively improve the ease of use of disassembly fixtures.

[0074] It is understood that, as an alternative implementation, the first clamp 1013 and the second clamp 1014 may also be a completely separate structure, with both ends of the first clamp 1013 and the second clamp 1014 connected by the locking part 102.

[0075] In one possible implementation, such as Figure 5 and Figure 6 As shown, along the radial direction of the gas spring, the outer wall of the clamping part 101 extends outward to form a support platform 1016; the lever part 201 is swayably mounted on the support platform 1016 via the lever shaft 2013; the pressing part 202 has a mating groove 2022 extending along the axial direction of the gas spring, and the pressing part 202 is sleeved on the outside of the gas spring through the mating groove 2022. The separation unit 2 has a simple and reliable overall structure. The pressing part 202 cooperates with the gas spring through the mating groove 2022, which can improve the concentricity of the pressing part 202 and the gas spring. When the pressing part 202 applies force to the base, the angle between the direction of the force and the axial direction of the gas spring is small, and it is not easy to generate a bias force during the disassembly process.

[0076] In related technologies, when using traditional tools for disassembly, the force applied to the gas spring and related components is uneven, which can easily lead to deformation or damage to the components. However, the disassembly fixture of this embodiment can apply the force to the gas spring and related components more evenly, thereby avoiding damage to the components.

[0077] The specific location of the support platform 1016 is not limited. It can be located in the middle of the clamping part 101 or near the end of the clamping part 101, as long as it is convenient for installing the lever shaft 2013 and the lever part 201.

[0078] Specifically, such as Figure 6 As shown, the support platform 1016 is provided near the end of the clamping part 101, and the support platform 1016 has a pivot seat on its end face along the axial direction of the gas spring, and the lever shaft 2013 is provided on the pivot seat.

[0079] In one possible implementation, such as Figure 2 and Figure 6 As shown, along the axial direction of the gas spring, the mating end 2012 is located on one side of the clamping part 101. The mating end 2012 is provided with a relief groove 20121 for accommodating the gas spring. The end face of the mating end 2012 away from the clamping part 101 abuts against the end face of the pressing part 202. With this type of mating end 2012, the force applied to the pressing part 202 extends along the axial direction of the gas spring. The pressing part 202 is subjected to more uniform force, and at the same time, it can avoid generating biased force.

[0080] It is understood that, as an alternative implementation, the top pressing part 202 may also be connected to the inner wall of the relief groove 20121, with the relief groove 20121 sleeved on the outside of the top pressing part 202. The top pressing part 202 and the mating end 2012 are arranged in sequence along the radial outward direction of the gas spring.

[0081] In one possible implementation, such as Figure 3 and Figure 7 As shown, along the axial direction of the gas spring, the mating end 2012 is provided with a through insertion hole 20122, and the end of the pressing part 202 extends downward to form an insertion block 2023. The pressing part 202 is inserted into the insertion hole 20122 through the insertion block 2023. Along the radial direction of the gas spring, the width of the insertion hole 20122 is greater than the width of the insertion block 2023.

[0082] The insert block 2023 is hinged to the mating end 2012 via the second hinge shaft 203. The extension direction of the second hinge shaft 203 is consistent with that of the lever shaft 2013. The insert block 2023 is provided with a strip hole 20231 for the second hinge shaft 203 to pass through. During the swinging process of the mating end 2012, the mating end 2012 itself moves along an arc trajectory. The mating end 2012 and the top pressing part 202 adopt this connection method, which allows the top pressing part 202 to move slightly relative to the mating end 2012, so that the top pressing part 202 can swing relative to the mating end 2012. This can effectively prevent the top pressing part 202 from swinging during the movement of the mating end 2012, thus avoiding the situation where the force direction of the top pressing part 202 changes due to the movement of the mating end 2012, thereby improving the reliability of the disassembly tool.

[0083] Specifically, there are no limitations on the width of the socket 20122, the width of the plug block 2023, and the length of the strip hole 20231. They can be flexibly set and adjusted according to actual usage.

[0084] The extension direction of the strip hole 20231 is not limited; it can extend in a straight line along a preset direction or be an arc groove, which can be flexibly selected.

[0085] Preferably, the strip hole 20231 extends along the axial direction of the gas spring.

[0086] Furthermore, if the end face of the mating end 2012 and the end face of the pressing part 202 have a certain distance between them, then it is only necessary for the width of the insertion hole 20122 to be greater than the width of the insertion block 2023, and for the insertion block 2023 to have a round hole for the second hinge shaft 203 to pass through. This will also allow the mating end 2012 and the pressing part 202 to swing relative to each other. However, at this time, all the force will be applied to the second hinge shaft 203, which may easily lead to the second hinge shaft 203 breaking and failing.

[0087] The additional strip hole 20231 provided in this embodiment can transmit the force mainly through the end face of the mating end 2012 to the end face of the top pressing part 202, thus avoiding excessive force on the second hinge shaft 203 and damage.

[0088] In one possible implementation, such as Figure 6 As shown, along the axial direction of the gas spring, the end face of the top pressure end 2021 protrudes outward along the edge of the mating groove 2022 to form a protrusion 20211. The protrusion 20211 allows the force to be applied more concentratedly at the position where the base and the gas spring are connected, so that the gas spring and the base can separate more quickly.

[0089] Specifically, such as Figure 6 As shown, the specific structure of the protrusion 20211 is not limited. It can be an integral protrusion 20211 extending along the edge trajectory of the mating groove 2022, or it can be a plurality of point-like protrusions 20211 arranged symmetrically along the radial direction of the gas spring, as long as the force can be applied more concentratedly at the position where the base and the gas spring are connected.

[0090] In one possible implementation, such as Figure 1 and Figure 6As shown, the separation unit 2 also includes a sleeve 204, which is detachably fitted onto the gripping end 2011. The outer wall of the gripping end 2011 is provided with a limiting block 20111, and the sleeve 204 is provided with a limiting groove for cooperating with the limiting block 20111. The limiting groove extends along the axial direction of the sleeve 204. By providing the sleeve 204 at the gripping end 2011, the length of the power arm in the lever part 201 can be effectively extended, making it easier to use the disassembly tool. In addition, by providing the limiting groove and the limiting block 20111, the relative rotation between the sleeve 204 and the gripping end 2011 can be effectively avoided when the disassembly tool is used, thereby improving the stability and reliability of the disassembly tool during use.

[0091] Specifically, such as Figure 6 As shown, there is no limit to the number of limit blocks 20111 and limit grooves. There can be one or multiple ones set at intervals, as long as they can prevent the sleeve 204 and the gripping end 2011 from rotating relative to each other.

[0092] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A disassembly fixture for disassembling a gas spring on a base, characterized in that, include: The clamping unit (1) includes a clamping part (101) and a locking part (102) disposed on the clamping part (101). The clamping part (101) has a clamping space (1011) for the gas spring to pass through. The clamping part (101) forms a clamping surface (1012) corresponding to the wall surface of the clamping space (1011). The locking part (102) has a locking state in which the clamping surface (1012) abuts against the gas spring, and an unlocking state in which the clamping surface (1012) is separated from the gas spring. The separation unit (2) includes a lever part (201) and a pressing part (202). The lever part (201) is pivotally mounted on the clamping part (101) with the clamping part (101) as the fulcrum. One end of the lever part (201) away from the clamping part (101) forms a gripping end (2011), and the other end forms a mating end (2012). The pressing part (202) is disposed on the mating end (2012). One end of the pressing part (202) away from the clamping part (101) forms a pressing end (2021) for abutting and mating with the base.

2. The disassembly fixture according to claim 1, characterized in that, The clamping part (101) includes a first clamp (1013) and a second clamp (1014). The first clamp (1013) and the second clamp (1014) together form the clamping space (1011). The first clamp (1013) and the second clamp (1014) are locked by the locking part (102) to clamp the gas spring.

3. The disassembly fixture according to claim 2, characterized in that, The locking part (102) includes a threaded screw (1021), a first nut (1022), and a second nut (1023); The first clamp (1013) is provided with a first locking channel (103), and the second clamp (1014) is provided with a second locking channel (104). The screw (1021) passes through the first locking channel (103) and the second locking channel (104). The screw (1021) abuts against the first clamp (1013) via the first nut (1022), and the screw (1021) abuts against the second clamp (1014) via the second nut (1023). At least a portion of the first clamp (1013) and the second clamp (1014) are located between the first nut (1022) and the second nut (1023).

4. The disassembly fixture according to claim 3, characterized in that, The first locking channel (103) is a first through groove (10131) provided on the outer wall of the first clamp (1013), and the second locking channel (104) is a second through groove (10141) provided on the outer wall of the second clamp (1014); The second through groove (10141) is further provided with a receiving groove (10142), and the second nut (1023) is disposed in the receiving groove (10142).

5. The disassembly fixture according to claim 4, characterized in that, The clamping part (101) further includes a rotating shaft (10143). The second clamp (1014) has a rotating hole (10144) at one end away from the first clamp (1013). The rotating hole (10144) is connected to the second through groove (10141) and their axes are perpendicular. The rotating hole (10144) is located on the side of the receiving groove (10142) away from the first clamp (1013). The rotating shaft (10143) is rotatably disposed in the rotating hole (10144). The rotating shaft (10143) has a through hole (10145) along its own radial direction. The screw (1021) is movably inserted through the through hole (10145).

6. The disassembly fixture according to claim 2, characterized in that, The locking part (102) includes a threaded screw (1021) and a first nut (1022); The first clamp (1013) is provided with a first locking channel (103), and the screw (1021) is fixedly disposed on the second clamp (1014). The screw (1021) passes through the first locking channel (103) and extends out from the first locking channel (103). The screw (1021) abuts against the first clamp (1013) via the first nut (1022).

7. The disassembly fixture according to any one of claims 1 to 6, characterized in that, Along the radial direction of the gas spring, the outer wall of the clamping part (101) extends outward to form a support platform (1016); The lever (201) is swayably mounted on the support platform (1016) via the lever shaft (2013); The top pressing part (202) has a mating groove (2022) extending along the axial direction of the gas spring, and the top pressing part (202) is sleeved on the outside of the gas spring through the mating groove (2022).

8. The disassembly fixture according to claim 7, characterized in that, Along the axial direction of the gas spring, the mating end (2012) is located on one side of the clamping part (101), the mating end (2012) is provided with a relief groove (20121) for accommodating the gas spring, and the end face of the mating end (2012) away from the clamping part (101) abuts against the end face of the pressing part (202).

9. The disassembly fixture according to claim 8, characterized in that, Along the axial direction of the gas spring, the mating end (2012) is provided with a through insertion hole (20122), and the end of the pressing part (202) extends downward to form a plug (2023). The pressing part (202) is inserted into the insertion hole (20122) through the plug (2023). Along the radial direction of the gas spring, the width of the insertion hole (20122) is greater than the width of the plug (2023). The insert (2023) is hinged to the mating end (2012) via a second hinge shaft (203). The extension direction of the second hinge shaft (203) is consistent with that of the lever shaft (2013). The insert (2023) is provided with a strip hole (20231) for the second hinge shaft (203) to pass through.

10. The disassembly fixture according to claim 7, characterized in that, Along the axial direction of the gas spring, the end face of the top pressing end (2021) protrudes outward along the edge of the mating groove (2022) to form a protrusion (20211); And / or, the separation unit (2) further includes a sleeve (204), the sleeve (204) being detachably fitted onto the gripping end (2011), the outer wall of the gripping end (2011) being provided with a limiting block (20111), the sleeve (204) being provided with a limiting groove for cooperating with the limiting block (20111), the limiting groove extending along the axial direction of the sleeve (204).

Images