Valve bonnet dismounting tool for air-opening stop valve

Abstract

The utility model provides an air switch cut-off valve bonnet dismounting tool which comprises a tool platform, a fixing assembly used for fixing an air switch cut-off valve is arranged on the tool platform, the fixing assembly comprises a limiting baffle arranged on one side of the tool platform, and the limiting baffle is arranged on the other side of the tool platform. A telescopic fixing plate is arranged on the other side, opposite to the limiting baffle, of the tool platform, a supporting back plate is arranged on the tool platform, a positioning assembly is arranged on the supporting back plate, and the positioning assembly comprises a positioning platform and a positioning screw arranged on the positioning platform corresponding to a threaded through hole in a valve bonnet. The positioning screw rod is used for preventing the valve bonnet from popping out of the valve body in the dismounting process of the valve bonnet, and through the pressing effect of the positioning assembly on the valve bonnet in the dismounting process, the problem that the valve bonnet is popped out by the spring assembly when the valve bonnet is completely separated from the valve body is avoided under the condition that it is guaranteed that the valve bonnet can be smoothly dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of valve bonnet disassembly tooling, in particular to a valve bonnet disassembly tooling for a pneumatic cut-off valve. Background Art

[0002] The cut-off valve is a type of actuator in the automation system, which consists of a multi-spring pneumatic diaphragm actuator or a deputy director piston actuator and a regulating valve. The cut-off valve has a wide range of uses. In the tire vulcanization process, the cut-off valve is used in the thermal pipeline of the vulcanizer. Whether the cut-off valve can operate normally directly affects the quality of the tire during the vulcanization process.

[0003] During the process of repairing the shut-off valve, due to the spring assembly arranged inside the structure of the air-open shut-off valve, two workers are required to press and fix the valve bonnet of the air-open shut-off valve during removal, and remove the valve bonnet by rotating it. However, if the two workers fail to cooperate properly, the valve bonnet may still be insufficiently pressed, and the spring assembly may pop out, causing damage to surrounding objects and workers. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the above-mentioned technology and provides a tool for disassembling a valve cap of a pneumatic cut-off valve.

[0005] To this end, the utility model provides a tool for disassembling the valve bonnet of an air-open cut-off valve, including a tooling platform, on which a fixing component for fixing the air-open cut-off valve is arranged, the fixing component including a limit baffle arranged on one side of the tooling platform, a retractable fixing plate arranged on the other side of the tooling platform relative to the limit baffle, a supporting back plate arranged on the tooling platform, a positioning component arranged on the supporting back plate, the positioning component including a positioning platform and a positioning screw arranged on the positioning platform corresponding to the threaded through hole on the valve bonnet, the positioning screw being used to prevent the valve bonnet from popping out of the valve body during the disassembly process.

[0006] Preferably, the thread pitch of the positioning screw is respectively equal to the thread pitch of the threaded through hole on the valve bonnet and the thread pitch of the connection between the valve bonnet and the valve body.

[0007] Preferably, the positioning platform is fixedly arranged on the supporting back plate, and the positioning screw and the positioning platform are fixedly connected. When the air-open cut-off valve is fixedly arranged on the fixed assembly, one end of the positioning screw abuts against the threaded through hole on the valve cap.

[0008] Preferably, the positioning platform is fixedly arranged on the supporting back plate, a threaded connection structure is formed between the positioning screw and the positioning platform, a fixing nut is arranged on the positioning screw, and during the process of the positioning screw rotating and descending on the positioning platform, the lower end of the positioning screw can be simultaneously rotated and inserted into the threaded through hole of the valve cap.

[0009] Preferably, the distance between the center axis of the positioning screw and the supporting back plate is not less than the radius of the maximum specification gas-open cut-off valve.

[0010] Preferably, a first guide rail for installing a positioning platform is provided on the support back plate, the positioning platform can move along the first guide rail, and a threaded connection structure is formed between the positioning screw and the positioning platform.

[0011] Preferably, the support back plate is provided with a first guide rail and a second guide rail arranged parallel to each other, the positioning platform is arranged on the first guide rail, and a support platform for installing a driving mechanism is arranged on the second guide rail, the driving mechanism is used to drive the positioning screw to rotate, the support platform and the positioning platform move along the guide rail direction on the first guide rail and the second guide rail respectively, the support platform is connected to the second guide rail through a first connecting member, and a longitudinal guide rail is arranged between the first connecting member and the support platform, so that the support platform can perform lifting and lowering movements, and there is a threaded connection structure between the positioning platform and the positioning screw.

[0012] Preferably, the positioning platform and the first connecting member are both provided with fixing components, and the fixing components are used to fix the positioning platform and the supporting platform at any position on the first guide rail and the second guide rail.

[0013] Preferably, a support plate is provided on the tooling platform at a side of the fixed plate away from the limit baffle, a telescopic screw is provided on the fixed plate towards the support plate, and a threaded connection structure is formed between the telescopic screw and the support plate.

[0014] Preferably, a bearing bracket is provided on the tooling platform on the side of the fixed plate away from the limit baffle, a connecting rod is provided on the fixed plate toward the support plate, the connecting rod passes through the bearing bracket, and a telescopic driving component is provided on the connecting rod on the side away from the fixed plate, the telescopic driving component is used to control the telescopic distance of the fixed plate.

[0015] The utility model provides a tool for disassembling a valve cap of a gas-open cut-off valve, which has the following beneficial effects.

[0016] ⑴ The utility model makes the thread pitch of the positioning screw equal to the thread pitch between the valve bonnet and the valve body, so that the valve bonnet cooperates with the threaded through hole of the valve bonnet during the process of rotating and rising, thereby preventing the valve bonnet from being instantly ejected by the spring assembly after the valve bonnet and the valve body are completely separated. By continuously rotating the valve bonnet, the distance between the valve bonnet and the valve body is increased. After completing the maintenance or replacement operation of the gas-open cut-off valve, the staff can rotate the valve bonnet in the opposite direction again and re-install the valve bonnet on the valve body, thereby facilitating the staff to perform maintenance operations on the gas-open cut-off valve;

[0017] (2) In order to achieve effective fixation of the gas-open cut-off valve by the fixing assembly while avoiding excessive compression of the gas-open cut-off valve by the fixing assembly, which may cause extrusion damage to the structure of the gas-open cut-off valve, a telescopic driving member is provided on one side of the fixing plate, and the telescopic driving member is fixedly connected to the fixing plate by a connecting rod, so that the staff can adjust the fixing degree of the gas-open cut-off valve by the fixing plate as needed, avoiding the problem of excessive extrusion of the gas-open cut-off valve by the fixing plate;

[0018] (3) The distance between the center axis of the positioning screw and the support back plate is designed to be not less than the radius of the maximum specification gas-open cut-off valve, and the first guide rail is arranged on the support back plate, and the positioning platform can move along the first guide rail, so that the staff can adjust the placement position of the gas-open cut-off valve and the position of the positioning platform on the first guide rail as needed, so that the center axis of the positioning screw and the center axis of the threaded through hole of the valve cap are both located on the same straight line, ensuring that the positioning screw has a continuous limiting effect on the valve cap;

[0019] (4) The positioning screw is driven to rotate by the driving mechanism, and the positioning screw is passed through the positioning platform and inserted into the threaded through hole of the valve bonnet, and the threaded connection between the positioning platform and the positioning screw is used to prevent the valve bonnet from being ejected by the spring assembly after the valve bonnet is completely separated from the valve body, thereby reducing the work tasks of the staff during the valve bonnet removal process and improving the valve bonnet removal efficiency while ensuring the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of Embodiment 1 of the present utility model;

[0021] Figure 2 This is a front view of Embodiment 2 of the present utility model;

[0022] Figure 3 This is a front view of Embodiment 3 of the present utility model;

[0023] Figure 4 This is a front view of Embodiment 4 of the present utility model;

[0024] Figure 5 for Figure 4 Schematic diagram of the structure of the middle valve bonnet removal tool.

[0025] Markings in the figure: 1-tooling platform, 101-support backboard;

[0026] 2-fixed assembly, 201-limit baffle, 202-fixed plate, 203-telescopic screw, 204-support plate, 205-connecting rod, 206-bearing bracket, 207-telescopic drive member;

[0027] 3-positioning platform, 301-first guide rail;

[0028] 4-support platform, 401-second guide rail, 402-longitudinal guide rail, 403-first connecting member, 404 driving mechanism;

[0029] 5-positioning screw, 501-fixing nut;

[0030] 601-valve bonnet, 602-valve body. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments to help understand the content of the present invention. The methods used in the present invention are all conventional methods unless otherwise specified; the raw materials and devices used are all conventional commercial products unless otherwise specified.

[0032] Embodiment 1:

[0033] like Figure 1 As shown, the utility model provides a tool for disassembling a valve bonnet of an air-open shut-off valve, comprising a tooling platform 1, on which a fixing assembly 2 for fixing the air-open shut-off valve is arranged, the fixing assembly 2 comprising a limiting baffle 201 arranged on one side of the tooling platform 1, and a retractable fixing plate 202 is arranged on the other side of the tooling platform 1 relative to the limiting baffle 201, the tooling platform 1 is provided with a supporting back plate 101, on which a positioning assembly is arranged, the positioning assembly comprising a positioning platform 3 and a positioning screw arranged on the positioning platform 3 corresponding to the threaded through hole on the valve bonnet 601, the positioning screw being used to prevent the valve bonnet 601 from popping out from the valve body 602 during the disassembly process.

[0034] The thread pitch of the positioning screw is respectively equal to the thread pitch of the threaded through hole on the valve bonnet 601 and the thread pitch between the valve bonnet 601 and the valve body 602;

[0035] During use of the utility model, the positioning platform 3 is fixedly arranged on the supporting back plate 101, and the positioning screw and the positioning platform 3 are fixedly connected. When the gas-open cut-off valve is fixedly arranged on the fixing assembly 2, one end of the positioning screw and the threaded through hole on the valve bonnet 601 abut against each other. At this time, the staff can rotate the valve bonnet 601 to remove the valve bonnet 601 from the valve body 602. Since the thread pitch of the positioning screw is equal to the thread pitch between the valve bonnet 601 and the valve body 602, the valve bonnet 601 is rotated and raised to the position between the positioning screw and the threaded through hole of the valve bonnet 601. The cooperation prevents the valve bonnet 601 from being instantly popped out by the spring assembly after the valve bonnet 601 is completely separated from the valve body 602. By continuously rotating the valve bonnet 601, the distance between the valve bonnet 601 and the valve body 602 is increased. After completing the maintenance or replacement of the gas-open cut-off valve, the staff rotates the valve bonnet 601 in the opposite direction again and re-installs the valve bonnet 601 on the valve body 602, thereby facilitating the staff to perform maintenance operations on the gas-open cut-off valve and avoiding the problem that the spring assembly inside the gas-open cut-off valve continuously pushes the valve bonnet 601, causing the valve bonnet 601 to pop out during disassembly and causing harm to the surrounding staff.

[0036] Furthermore, in order to achieve the fixing effect of the fixed plate 202 and the limit baffle 201 on the air-open cut-off valve, the support plate 204 is arranged on the tooling platform 1, and a telescopic screw 203 is arranged on the fixed plate 202. A threaded connection structure is formed between the telescopic screw 203 and the support plate 204, so that the staff can adjust the degree of tightening of the fixed plate 202 on the air-open cut-off valve as needed, ensuring that the air-open cut-off valve maintains a stable fixed state during the disassembly and installation processes, thereby providing a better operating environment for the staff.

[0037] Embodiment 2:

[0038] like Figure 2 As shown, the utility model provides a tool for disassembling the valve bonnet of an air-open shut-off valve, the positioning platform 3 is fixedly arranged on the supporting back plate 101, and two supporting points are provided for the positioning screw at the same time through the threaded connection structure between the positioning screw and the positioning platform 3 and the connection structure between the positioning screw and the threaded through hole of the valve bonnet 601, and the fixing nut 501 is arranged on the positioning screw. After the positioning screw is inserted into the threaded through hole of the valve bonnet 601, a fixed connection structure is formed between the positioning screw and the valve bonnet 601 through the fixing nut 501, so that the staff can adjust the rotation direction between the valve bonnet 601 and the valve body 602 by rotating the positioning screw, and the threaded connection structure between the positioning screw and the positioning platform 3 is utilized to prevent the valve bonnet 601 from being instantly ejected by the spring assembly when the valve bonnet 601 and the valve body 602 are completely separated.

[0039] Furthermore, in order to achieve effective fixation of the air-open cut-off valve by the fixing component 2 while avoiding excessive compression of the air-open cut-off valve by the fixing component 2, which may cause extrusion damage to the structure of the air-open cut-off valve, a telescopic driving component 207 is connected to one side of the fixing plate 202, and the telescopic driving component 207 is fixedly connected to the fixing plate 202 by a connecting rod 205, so that the staff can adjust the degree of fixation of the air-open cut-off valve by the fixing plate 202 as needed, thereby avoiding the problem of excessive extrusion of the air-open cut-off valve by the fixing plate 202.

[0040] The other structures of this embodiment are the same as those in Embodiment 1, and thus will not be described in detail here.

[0041] Embodiment 3:

[0042] like Figure 3 As shown, the utility model provides a tool for disassembling the valve bonnet of an air-open shut-off valve. Since the position of the upper limit baffle 201 on the tooling platform 1 is fixed, when air-open shut-off valves of different specifications are placed on the air-open shut-off valve, the center axis of the threaded through hole of the valve bonnet 601 cannot always remain on the same axis. In order to realize that the above-mentioned disassembly tool can be applicable to air-open shut-off valves of different specifications, the inventor designs the distance between the center axis of the positioning screw and the support back plate 101 to be not less than the radius of the maximum specification air-open shut-off valve, and arranges the first guide rail 301 on the support back plate 101. The positioning platform 3 can be moved along the first guide rail 301, so that the staff can adjust the placement position of the air-open shut-off valve and the position of the positioning platform 3 on the first guide rail 301 as needed, so that the center axis of the positioning screw and the center axis of the threaded through hole of the valve bonnet 601 are both on the same straight line, ensuring that the positioning screw continuously limits the valve bonnet 601.

[0043] Furthermore, in order to keep the positioning screw stable during the disassembly of the valve bonnet 601, the fixing component 2 is arranged between the positioning platform 3 and the first guide rail 301. The fixing component 2 is a fixing screw. By arranging the fixing screw on the fixing platform, the positioning platform 3 can be fixed at any position on the first guide rail 301, thereby ensuring the structural stability of the positioning screw and allowing the disassembly and installation operations of the valve bonnet 601 to proceed smoothly.

[0044] The fixing assembly 2 of this embodiment is the same as that of the embodiment 1 or the embodiment 2, and thus will not be described in detail here.

[0045] Embodiment 4:

[0046] like Figure 4 , Figure 5As shown, the utility model provides a tool for disassembling the valve bonnet of an air-open shut-off valve, wherein a first guide rail 301 and a second guide rail 401 arranged parallel to each other are arranged on the support back plate 101, the positioning platform 3 is arranged on the first guide rail 301, and a support platform 4 for installing a driving mechanism 404 is arranged on the second guide rail 401, and the driving mechanism 404 is used to drive the positioning screw 5 to rotate, and the support platform 4 and the positioning platform 3 move along the guide rail direction on the first guide rail 301 and the second guide rail 401 respectively, and the support platform 4 is connected to the second guide rail 401 through a first connecting member 403, and a longitudinal guide rail 402 is arranged between the first connecting member 403 and the support platform 4, so that the support platform 4 can be lifted and lowered along the longitudinal guide rail 402, and a threaded connection structure is provided between the positioning platform 3 and the positioning screw 5.

[0047] During use of this embodiment, the positioning screw 5 is driven to rotate by the driving mechanism 404, the positioning screw 5 is passed through the positioning platform 3 and inserted into the threaded through hole of the valve bonnet 601, and the fixing nut 501 is rotated toward the valve bonnet 601 to form a fixed connection structure between the positioning screw and the valve bonnet 601, and then the staff controls the driving mechanism 404 to rotate the positioning screw 5 in the opposite direction to separate the valve bonnet 601 from the valve body 602, and through the threaded connection between the positioning platform 3 and the positioning screw 5, the valve bonnet 601 is prevented from being ejected by the spring assembly after the valve bonnet 601 is completely separated from the valve body 602; after the staff completes the maintenance or replacement process, the staff re-drives the driving mechanism 404 to reinstall the valve bonnet 601 on the valve body 602, thereby reducing the staff's work tasks during the disassembly of the valve bonnet 601 and improving the efficiency of disassembly of the valve bonnet 601 while ensuring the safety of the staff.

[0048] Furthermore, in order to achieve the structural stability of the positioning screw 5 during the disassembly process of the valve bonnet 601, the fixing assembly 2 is provided on the first connecting member 403 and the positioning platform 3, so that the positioning platform 3 and the supporting platform 4 can be fixed at any position on the first guide rail 301 and the second guide rail 401 respectively, thereby ensuring the structural stability of the positioning screw 5.

[0049] The fixing assembly 2 of this embodiment is the same as that of the embodiment 1 or the embodiment 2, and thus will not be described in detail here.

[0050] In the description of the present invention, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inside", "outside", "back", "middle", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0051] However, what is described above is only a specific embodiment of the present invention and should not be used to limit the scope of implementation of the present invention. Therefore, the replacement of equivalent components, or equivalent changes and modifications made according to the scope of protection of the patent of the present invention should still fall within the scope covered by the claims of the present invention.

Claims

1. A tool for disassembling a valve cap of a pneumatic cut-off valve, characterized in that: The invention comprises a tooling platform (1), on which a fixing assembly (2) for fixing a gas-open shut-off valve is arranged, the fixing assembly (2) comprising a limit baffle (201) arranged on one side of the tooling platform (1), and a retractable fixing plate (202) arranged on the other side of the tooling platform (1) relative to the limit baffle (201), the tooling platform (1) is provided with a supporting back plate (101), and the supporting back plate (101) is provided with a positioning assembly, the positioning assembly comprising a positioning platform (3) and a positioning screw arranged on the positioning platform (3) corresponding to a threaded through hole on a valve bonnet (601), the positioning screw being used to prevent the valve bonnet (601) from popping out of the valve body (602) during the disassembly process.

2. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 1, characterized in that: The thread pitch of the positioning screw is respectively equal to the thread pitch of the threaded through hole on the valve bonnet (601) and the thread pitch of the connection between the valve bonnet (601) and the valve body (602).

3. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 2, characterized in that: The positioning platform (3) is fixedly arranged on the supporting back plate (101), and a fixed connection structure is formed between the positioning screw and the positioning platform (3). When the air-open cut-off valve is fixedly arranged on the fixing assembly (2), one end of the positioning screw abuts against the threaded through hole on the valve cap (601).

4. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 2, characterized in that: The positioning platform (3) is fixedly arranged on the supporting back plate (101), and a threaded connection structure is formed between the positioning screw and the positioning platform (3). A fixing nut (501) is arranged on the positioning screw. When the positioning screw rotates and descends on the positioning platform (3), the lower end of the positioning screw can be simultaneously rotated and inserted into the threaded through hole of the valve cap (601).

5. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 2, characterized in that: The distance between the center axis of the positioning screw and the supporting back plate (101) is not less than the radius of the maximum specification gas-open cut-off valve.

6. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 5, characterized in that: The supporting back plate (101) is provided with a first guide rail (301) for installing a positioning platform (3); the positioning platform (3) can move along the first guide rail (301); and a threaded connection structure is formed between the positioning screw and the positioning platform (3).

7. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 5, characterized in that: The support back plate (101) is provided with a first guide rail (301) and a second guide rail (401) which are arranged in parallel with each other; the positioning platform (3) is arranged on the first guide rail (301); the second guide rail (401) is provided with a support platform (4) for installing a driving mechanism (404); the driving mechanism (404) is used to drive the positioning screw (5) to rotate; the support platform (4) and the positioning platform (3) respectively move along the guide rail direction on the first guide rail (301) and the second guide rail (401); the support platform (4) is connected to the second guide rail (401) via a first connecting member (403); a longitudinal guide rail (402) is arranged between the first connecting member (403) and the support platform (4) so ​​that the support platform (4) can move up and down; a threaded connection structure is provided between the positioning platform (3) and the positioning screw (5).

8. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 7, characterized in that: The positioning platform (3) and the first connecting member (403) are both provided with a fixing component (2), and the fixing component (2) is used to fix the positioning platform (3) and the supporting platform (4) at any position on the first guide rail (301) and the second guide rail (401).

9. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 1, characterized in that: A support plate (204) is provided on the tooling platform (1) at a side of the fixed plate (202) away from the limit baffle (201), a telescopic screw rod (203) is provided on a side of the fixed plate (202) facing the support plate (204), and a threaded connection structure is formed between the telescopic screw rod (203) and the support plate (204).

10. The tool for disassembling the valve cap of a gas-open cut-off valve according to claim 9, characterized in that: A bearing bracket (206) is provided on the tooling platform (1) at a side of the fixed plate (202) away from the limit baffle (201); a connecting rod (205) is connected to the fixed plate (202) on a side facing the support plate (204); the connecting rod (205) passes through the bearing bracket (206); and a telescopic driving member (207) is provided on the connecting rod (205) on a side away from the fixed plate (202); the telescopic driving member (207) is used to control the telescopic distance of the fixed plate (202).

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