Diaphragm valve switching torque verification tool and nuclear power station maintenance equipment

Abstract

The utility model provides a diaphragm valve switching torque verification tool and nuclear power station maintenance equipment. The diaphragm valve switching torque verification tool comprises a connecting disc, a clamping structure arranged on the connecting disc and a wrench connecting structure arranged on the connecting disc. The connecting disc is used for being installed on a hand wheel of the diaphragm valve, the connecting disc defines a disc axis, the connecting disc is provided with a plurality of first installation holes and a plurality of second installation holes which are evenly formed around the disc axis, and the clamping structure is selectively installed in the first installation holes and used for clamping the hand wheel of the diaphragm valve. The wrench connecting structure is mounted on the second mounting hole and is coaxial with the connecting disc; and the wrench connecting structure is used for being connected with a torque wrench. By the adoption of the technical scheme, it is guaranteed that the torque applied to the hand wheel by an operator is within the threshold value, and damage to the diaphragm valve due to the fact that the torque applied to the hand wheel exceeds the standard is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of nuclear power plant maintenance equipment, and more specifically, to a diaphragm valve switching torque verification tool and nuclear power plant maintenance equipment. Background Technology

[0002] A diaphragm valve is a special type of shut-off valve whose opening and closing element is a diaphragm made of a soft material. This type of valve achieves the purity of the working medium and prevents the medium from impacting the working parts of the operating mechanism by separating the valve body cavity from the valve cover cavity and the drive components. The diaphragm valve achieves a sealing effect by pressing down the diaphragm or diaphragm assembly through the downward movement of the operating mechanism, making it seal tightly against the valve body's passage.

[0003] A diaphragm valve mainly consists of three main components: the valve body, the diaphragm, and the valve cover assembly.

[0004] Diaphragms are commonly made of elastic, corrosion-resistant, and non-permeable materials such as rubber and plastic.

[0005] Diaphragm valves offer several advantages, including simple structure, good sealing and corrosion resistance, and low fluid resistance. Due to their excellent sealing and corrosion resistance, diaphragm valves are particularly suitable for low-pressure, low-temperature, highly corrosive, and media containing suspended solids. They are commonly used in pipeline systems in the chemical, petroleum, pharmaceutical, and food industries.

[0006] In nuclear power systems, manual diaphragm valves are a very common type of shut-off valve. However, during the opening and closing process, due to differences in the strength of the operators, the closing and opening torque of the manual diaphragm valve is often too large, causing excessive compression or stretching of the diaphragm, resulting in diaphragm damage and loss of sealing function.

[0007] In existing technology, there is no method to verify the torque of manual diaphragm valve opening and closing; therefore, it is impossible to confirm the magnitude of the torque when the diaphragm valve is closed or opened. Often, due to excessive compression or stretching, the diaphragm head will rupture, resulting in poor valve sealing. Utility Model Content

[0008] The purpose of this invention is to provide a tool for verifying the switching torque of a diaphragm valve and a maintenance equipment for nuclear power plants, so as to solve the technical problem that diaphragm valves are easily damaged during the switching process in the prior art.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] Firstly, a tool for verifying the switching torque of a diaphragm valve is provided, comprising:

[0011] The system includes a connecting disc, a clamping structure disposed on the connecting disc, and a wrench connecting structure disposed on the connecting disc. The connecting disc is used to be mounted on the handwheel of a diaphragm valve. The connecting disc defines a disc axis. The connecting disc has a plurality of first mounting holes and a plurality of second mounting holes evenly arranged around the disc axis. The clamping structure is selectively mounted in one of the first mounting holes and is used to clamp the handwheel of the diaphragm valve. The wrench connecting structure is mounted on the second mounting hole and is coaxially arranged with the connecting disc. The wrench connecting structure is used to connect to a torque wrench.

[0012] By adopting the above technical solution, it is ensured that the torque applied by the operator to the handwheel is within the threshold, thus avoiding damage to the diaphragm valve caused by excessive torque applied to the handwheel.

[0013] In one embodiment, each of the first mounting holes has a slot in its hole wall, the clamping structure defines a clamping structure axis, the clamping structure includes an insertion part coaxially disposed with the clamping structure axis and a protrusion part connected to the insertion part and offset from the clamping structure axis, the insertion part is used to insert into the first mounting hole, and the protrusion part is clearance-fitted with the slot to be embedded in the slot.

[0014] By adopting the above technical solution, the insertion part realizes the insertion of the clamping structure into the first mounting hole, and the protrusion part realizes the clearance fit between the clamping structure and the slot. Since the protrusion part is arranged off the axis of the clamping structure, it can prevent the clamping structure from rotating around its own axis.

[0015] In one embodiment, the first mounting hole has two slots symmetrically arranged on its wall. When the clamping structure is oriented toward the diaphragm valve opening direction, the protrusion engages in one of the slots. When the clamping structure is oriented toward the diaphragm valve closing direction, which is opposite to the diaphragm valve opening direction, the protrusion engages in the other slot.

[0016] By adopting the above technical solution, the clamping structure can flexibly adjust the orientation of the protrusion according to the state of the diaphragm valve.

[0017] In one embodiment, the clamping structure further includes a clamping part connected to the protrusion, and the clamping part has a clamping groove for accommodating the diaphragm valve handwheel.

[0018] By adopting the above technical solution, the clamping groove can be locked into the handwheel of the diaphragm valve, so that the special tool will not come out of the handwheel of the diaphragm valve when it is rotated, thus affecting the efficiency of manual diaphragm valve opening and closing torque verification.

[0019] In one embodiment, the clamping portion includes a first clamping segment, a second clamping segment, and a third clamping segment. The first clamping segment is connected to the protrusion. The thickness of the first clamping segment relative to the axis of the clamping structure is greater than the thickness of the protrusion relative to the axis of the clamping structure. The thicknesses of the first clamping segment and the third clamping segment relative to the axis of the clamping structure are equal. The thickness of the first clamping segment relative to the axis of the clamping structure is greater than the thickness of the second clamping segment relative to the axis of the clamping structure.

[0020] By adopting the above technical solution, a clamping groove is formed in the clamping part.

[0021] In one embodiment, the number of the first mounting holes is four, and the four first mounting holes are evenly arranged around the axis.

[0022] By adopting the above technical solution, it is beneficial to set the clamping structure at different circumferential positions of the connecting disk.

[0023] In one embodiment, the connecting disc has a through hole for receiving a handwheel, and both the first mounting hole and the second mounting hole are arranged around the through hole.

[0024] By adopting the above technical solution, the compatibility between the connecting disc and the handwheel is improved.

[0025] In one embodiment, the wrench connection structure has a receiving groove facing the through hole, and the receiving groove communicates with the through hole.

[0026] By adopting the above technical solution, the compatibility between the wrench connection structure and the handwheel has been improved.

[0027] In one embodiment, the wrench connection structure is provided with a hexagonal head that connects to the torque wrench.

[0028] By adopting the above technical solution, it is easy to connect with a torque wrench.

[0029] Secondly, a nuclear power plant maintenance device is provided, including a torque wrench and the aforementioned diaphragm valve switching torque verification tool, wherein the torque wrench and the diaphragm valve switching torque verification tool are detachably connected.

[0030] By adopting the above technical solution, in addition to the advantages of the diaphragm valve switching torque verification tool of the above embodiment, the nuclear power plant maintenance equipment of this embodiment also has the advantage of protecting the diaphragm valve. Attached Figure Description

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

[0032] Figure 1 This is a cross-sectional view of the diaphragm valve switching torque verification tool provided in this embodiment of the utility model.

[0033] Figure 2 This is a top view of the connecting disc provided in an embodiment of the present utility model.

[0034] Figure 3 This is a cross-sectional view of the connecting disc provided in an embodiment of this utility model.

[0035] Figure 4 This is a cross-sectional view of the clamping structure provided in an embodiment of this utility model.

[0036] Figure 5 This is a top view of the clamping structure provided in this embodiment of the utility model.

[0037] Figure 6 This is a cross-sectional view of the wrench connection structure provided in an embodiment of this utility model.

[0038] The labels for the attached figures are as follows:

[0039] 100. Diaphragm valve switching torque verification tool; Y, clamping structure axis; X, disc axis;

[0040] 1. Connecting disc; 2. Clamping structure; 3. Wrench connecting structure;

[0041] 11. First mounting hole; 12. Second mounting hole; 13. Slot; 21. Insertion part; 22. Protrusion; 23. Threaded part; 24. Clamping part; 14. Through hole; 31. Receiving groove; 32. Hexagonal head;

[0042] 240. Clamping groove; 241. First clamping section; 242. Second clamping section; 243. Third clamping section. Detailed Implementation

[0043] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0044] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be located directly on or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0045] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or the number of technical features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. The specific implementation of this utility model is described in more detail below with reference to specific embodiments:

[0047] like Figures 1 to 3 As shown in the figure, the present invention provides a diaphragm valve switching torque verification tool, which is used to verify the torque when the diaphragm valve is switched on and off, to ensure that the torque applied by the operator when switching the diaphragm valve is within the threshold, thereby reducing damage to the diaphragm valve caused by excessive torque applied by the operator.

[0048] The diaphragm valve switching torque verification tool 100 provided in this embodiment includes:

[0049] The system comprises a connecting disc 1, a clamping structure 2 disposed on the connecting disc 1, and a wrench connecting structure 3 disposed on the connecting disc 1. The connecting disc 1 is used to install on the handwheel of the diaphragm valve. The connecting disc 1 defines a disc axis X. The connecting disc 1 has a plurality of first mounting holes 11 and a plurality of second mounting holes 12 evenly arranged around the disc axis X. The clamping structure 2 is selectively installed in one of the first mounting holes 11 and is used to clamp the handwheel of the diaphragm valve. The wrench connecting structure 3 is installed on the second mounting hole 12 and is coaxially arranged with the connecting disc 1. The wrench connecting structure 3 is used to connect with a torque wrench so that the torque wrench can apply torque to drive the connecting disc 1 and the clamping structure 2 to rotate. The torque wrench is used to measure the torque value of the handwheel.

[0050] like Figure 2 and Figure 3As shown, specifically, the connecting disc 1 refers to the disc-shaped component that connects the clamping structure 2 and the wrench connecting structure 3; the connecting disc 1 is defined by a disc axis X, which is a straight line passing through the center of the connecting disc 1 and perpendicular to the radial surface of the connecting disc 1; the connecting disc 1 is provided with a plurality of first mounting holes 11 and second mounting holes 12, wherein the plurality of first mounting holes 11 are evenly arranged around the disc axis X, and the plurality of second mounting holes 12 are also evenly arranged around the disc axis X, and the plurality of first mounting holes 11 are located on the periphery of the plurality of second mounting holes 12.

[0051] The clamping structure 2 refers to the structure used to clamp the clampable part of the handwheel of the diaphragm valve. When the connecting disc 1 is installed on the handwheel, the clamping structure 2 is selectively installed in one of the plurality of first mounting holes 11. The first mounting hole 11 is provided corresponding to the clampable part of the handwheel. Therefore, when the clamping structure 2 is installed in the first mounting hole 11, it can clamp the clampable part of the handwheel.

[0052] The wrench connection structure 3 refers to the structure used to connect a torque wrench. The wrench connection structure 3 is located on the connecting disc 1 and on multiple second mounting holes 12. The wrench connection structure 3 is coaxially arranged with the connecting disc 1. Thus, when the wrench connection structure 3 is connected to a torque wrench used to drive the connecting disc 1 and the clamping structure 2 to rotate around the axis, the torque wrench can rotate the wrench connection structure 3, thereby driving the connecting disc 1 and the clamping structure 2 to rotate around the axis.

[0053] The working principle of the diaphragm valve switching torque verification tool 100 provided in this embodiment is as follows:

[0054] The diaphragm valve switching torque calibration tool 100 of this embodiment is applied to the handwheel of the diaphragm valve, wherein at least one clamping part is provided at a preset position in the circumferential direction of the handwheel; the connecting disc 1 is installed on the handwheel of the diaphragm valve, and the operator selects the corresponding first mounting hole 11 to install the clamping structure 2, the first mounting hole 11 corresponding to the clamping part, so that the clamping structure 2 can just clamp the corresponding clamping part; then the wrench connecting structure 3 is installed on the second mounting hole 12, so that the wrench connecting structure 3 is coaxial with the connecting disc 1; finally, the torque wrench is connected to the wrench connecting structure. In structure 3, the torque wrench can drive the connecting disc 1 and the clamping structure 2 to rotate via the wrench connecting structure 3. The clamping structure 2 rotates around the axis of the connecting disc 1, thereby rotating the clampable part of the handwheel. The clampable part of the handwheel feeds back torque to the torque wrench through the clamping structure 2, allowing the torque wrench to output a torque value. Thus, the operator can obtain the torque applied to the handwheel through the torque wrench, set the manual diaphragm valve's open and closed positions based on the calculated torque value, and prevent the opening and closing torque from exceeding the limit by setting mechanical limits. Using this method to set mechanical limits on the diaphragm valve ensures that the diaphragm head will not rupture due to excessive compression or stretching, maintaining good sealing performance of the valve for a long time, reducing maintenance caused by diaphragm head rupture, and saving corresponding construction time, spare parts, and labor costs.

[0055] By adopting the above technical solution, it is ensured that the torque applied by the operator to the handwheel is within the threshold, thus avoiding damage to the diaphragm valve caused by excessive torque applied to the handwheel.

[0056] Please refer to the following: Figure 4 and Figure 5 In one embodiment, each first mounting hole 11 has a groove 13 on its hole wall. The clamping structure 2 defines a clamping structure axis Y. The clamping structure 2 includes an insertion part 21 coaxially arranged with the clamping structure axis Y and a protrusion 22 connected to the insertion part 21 and offset from the clamping structure axis Y. The insertion part 21 is used to insert into the first mounting hole 11, and the protrusion 22 is clearance-fitted with the groove 13 to be embedded in the groove 13.

[0057] Specifically, the connecting disc 1 is a disc with an outer diameter of approximately 160 mm. At a diameter of 120 mm, four first mounting holes 11 with slots 13 are evenly distributed along the circumference of the connecting disc 1. The diameter of the first mounting holes 11 is approximately 10.5 mm, forming an insertion fit with the insertion part 21 of the clamping structure 2; the slots 13 are used for a clearance fit with the protrusion 22. At a diameter of approximately 80 mm, four second mounting holes 12 are evenly distributed along the circumference of the connecting disc 1. The second mounting holes 12 can be M10 threaded holes, facilitating the installation of the wrench connecting structure 3 onto the connecting disc 1 using bolts.

[0058] By adopting the above technical solution, the insertion part 21 realizes the insertion of the clamping structure 2 into the first mounting hole 11, and the protrusion 22 realizes the clearance fit between the clamping structure 2 and the slot 13. Since the protrusion 22 is arranged off-center from the clamping structure axis Y, it can prevent the clamping structure 2 from rotating around its own axis.

[0059] In one embodiment, the first mounting hole 11 has two symmetrically arranged slots 13 on its hole wall. When the clamping structure 2 is facing the diaphragm valve opening direction, the protrusion 22 is engaged in one of the slots 13. When the clamping structure 2 is facing the diaphragm valve closing direction, which is opposite to the diaphragm valve opening direction, the protrusion 22 is engaged in the other slot 13.

[0060] Specifically, each of the first mounting holes 11 has a slot 13 on each side of the hole wall. The size of the slot 13 is slightly larger than that of the protrusion 22 so that the two can form a clearance fit. However, the clearance cannot be too large and must meet the clearance fit standard of the mechanical industry to prevent the impact force generated during the rotation process, which could cause the protrusion 22 to break easily.

[0061] The diaphragm valve needs to be tested for torque in the open position (the position where the diaphragm valve is open) and torque in the closed position (the position where the diaphragm valve is closed). Since the handwheel rotates in opposite directions when the diaphragm valve is opened and closed, when the clamping structure 2 is arranged in different first mounting holes 11, it is necessary to determine which slot 13 the protrusion 22 should be inserted into according to the rotation direction of the diaphragm valve.

[0062] By adopting the above technical solution, the clamping structure 2 can flexibly adjust the orientation of the protrusion 22 according to the state of the diaphragm valve.

[0063] In one embodiment, the clamping structure 2 further includes a threaded portion 23 connected to the insertion portion 21. The threaded portion 23 protrudes outside the first mounting hole 11 after the insertion portion 21 is inserted into the first mounting hole 11. The threaded portion 23 is used to connect with a nut to fix the entire clamping structure 2 to the connecting disc 1.

[0064] In one embodiment, the clamping structure 2 further includes a clamping part 24, which is connected to the protrusion 22, and the clamping part 24 has a clamping groove 240 for accommodating the diaphragm valve handwheel.

[0065] Specifically, the clamping groove 240 is U-shaped.

[0066] By adopting the above technical solution, the clamping groove 240 can be engaged with the handwheel of the diaphragm valve, so that the special tool will not come out of the handwheel of the diaphragm valve when it is rotated, thus affecting the efficiency of manual diaphragm valve opening and closing torque verification.

[0067] In one embodiment, the clamping portion 24 includes a first clamping segment 241, a second clamping segment 242, and a third clamping segment 243. The first clamping segment 241 is connected to the protrusion 22. The thickness of the first clamping segment 241 relative to the clamping structure axis Y is greater than the thickness of the protrusion 22 relative to the clamping structure axis Y. The thicknesses of the first clamping segment 241 and the third clamping segment 243 relative to the clamping structure axis Y are equal. The thickness of the first clamping segment 241 relative to the clamping structure axis Y is greater than the thickness of the second clamping segment 242 relative to the clamping structure axis Y.

[0068] Specifically, the clamping part 24 is a cylinder, but half of it is machined off in the middle to form a U-shaped groove. The U-shaped groove can be inserted into the diaphragm valve handwheel, so that the special tool will not come out of the diaphragm valve handwheel when rotating, thus affecting the efficiency of manual diaphragm valve opening and closing torque verification. The diameter of the cylinder of the clamping part 24 is about 20mm to ensure that it still has sufficient strength after the middle part is machined off in half.

[0069] By adopting the above technical solution, the clamping part 24 forms a clamping groove 240.

[0070] In one embodiment, the number of first mounting holes 11 is four, and the four first mounting holes 11 are evenly arranged around the axis.

[0071] By adopting the above technical solution, it is beneficial to set the clamping structure 2 at different circumferential positions of the connecting disk 1.

[0072] In one embodiment, the connecting disc 1 is provided with a through hole 14 for accommodating a handwheel, and the first mounting hole 11 and the second mounting hole 12 are both arranged around the through hole 14.

[0073] Specifically, there is a through hole 14 with a diameter of about 60mm in the middle of the connecting disc 1, which allows the protruding part of the handwheel to be accommodated when the special tool is used.

[0074] By adopting the above technical solution, the compatibility between the connecting disc 1 and the handwheel is improved.

[0075] Please refer to the following: Figure 6 In one embodiment, the wrench connection structure 3 is provided with a receiving groove 31 facing the through hole 14, and the receiving groove 31 is connected to the through hole 14.

[0076] Specifically, the interior of the wrench connection structure 3 is hollowed out to form a receiving groove 31 with a diameter of about 40mm and a height of about 50mm. The receiving groove 31 is designed to accommodate the protruding part of the handwheel and ensure the normal use of the special tool. At the same time, a certain wall thickness is reserved for the wrench connection structure 3 as a whole to prevent damage during use due to insufficient wall thickness.

[0077] By adopting the above technical solution, the compatibility between the wrench connection structure 3 and the handwheel is improved.

[0078] In one embodiment, the wrench connection structure 3 is provided with a hexagonal head 32 for connection with a torque wrench.

[0079] By adopting the above technical solution, it is easy to connect with a torque wrench.

[0080] Secondly, a nuclear power plant maintenance device is provided, including a torque wrench and the aforementioned diaphragm valve switching torque verification tool 100, wherein the torque wrench and the diaphragm valve switching torque verification tool 100 are detachably connected.

[0081] By adopting the above technical solution, in addition to the advantages of the diaphragm valve switching torque verification tool 100 of the above embodiment, the nuclear power plant maintenance equipment of this embodiment also has the advantage of protecting the diaphragm valve.

[0082] 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 and improvements 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 tool for verifying the switching torque of a diaphragm valve, characterized in that, include: The system includes a connecting disc, a clamping structure disposed on the connecting disc, and a wrench connecting structure disposed on the connecting disc. The connecting disc is used to mount on the handwheel of a diaphragm valve. The connecting disc defines a disc axis and has a plurality of first mounting holes and a plurality of second mounting holes evenly arranged around the disc axis. The clamping structure is selectively mounted in one of the first mounting holes and is used to clamp the handwheel of the diaphragm valve. The wrench connecting structure is mounted on the second mounting hole and is coaxially arranged with the connecting disc. The wrench connecting structure is used to connect to a torque wrench so that the torque applied by the torque wrench drives the connecting disc and the clamping structure to rotate, and the torque wrench is used to measure the torque value of the handwheel.

2. The diaphragm valve switching torque verification tool as described in claim 1, characterized in that, Each of the first mounting holes has a slot on its hole wall. The clamping structure defines a clamping structure axis. The clamping structure includes an insertion part coaxially arranged with the clamping structure axis and a protrusion part connected to the insertion part and offset from the clamping structure axis. The insertion part is used to insert into the first mounting hole, and the protrusion part is clearance-fitted with the slot to be embedded in the slot.

3. The diaphragm valve switching torque verification tool as described in claim 2, characterized in that, The first mounting hole has two slots symmetrically arranged on its wall. When the clamping structure is facing the diaphragm valve opening direction, the protrusion is engaged in one of the slots. When the clamping structure is facing the diaphragm valve closing direction, which is opposite to the diaphragm valve opening direction, the protrusion is engaged in the other slot.

4. The diaphragm valve switching torque verification tool as described in claim 2, characterized in that, The clamping structure further includes a clamping part, which is connected to the protrusion, and the clamping part has a clamping groove for accommodating the diaphragm valve handwheel.

5. The diaphragm valve switching torque verification tool as described in claim 4, characterized in that, The clamping portion includes a first clamping section, a second clamping section, and a third clamping section. The first clamping section is connected to the protrusion. The thickness of the first clamping section relative to the axis of the clamping structure is greater than the thickness of the protrusion relative to the axis of the clamping structure. The thicknesses of the first clamping section and the third clamping section relative to the axis of the clamping structure are equal. The thickness of the first clamping section relative to the axis of the clamping structure is greater than the thickness of the second clamping section relative to the axis of the clamping structure.

6. The diaphragm valve switching torque verification tool as described in any one of claims 1 to 5, characterized in that, The number of the first mounting holes is four, and the four first mounting holes are evenly arranged around the axis.

7. The diaphragm valve switching torque verification tool as described in any one of claims 1 to 5, characterized in that, The connecting disc has a through hole for accommodating a handwheel, and both the first mounting hole and the second mounting hole are arranged around the through hole.

8. The diaphragm valve switching torque verification tool as described in claim 7, characterized in that, The wrench connection structure is provided with a receiving groove facing the through hole, and the receiving groove is in communication with the through hole.

9. The diaphragm valve switching torque verification tool as described in any one of claims 1 to 5, characterized in that, The wrench connection structure is provided with a hexagonal head that connects to the torque wrench.

10. A nuclear power plant maintenance equipment, characterized in that, The device includes a torque wrench and a diaphragm valve switching torque verification tool as described in any one of claims 1 to 9, wherein the torque wrench and the diaphragm valve switching torque verification tool are detachably connected.

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