Auxiliary device for opening and closing lifting type stop valve

Abstract

The lifting type stop valve switch auxiliary device comprises a long rod, one end of the long rod is provided with an operation handle, and the operation handle is perpendicular to the long rod; one surface, connected with the long rod, of the sleeve is a near-end surface, the other surface, far away from the long rod, of the sleeve is a far-end surface, a containing cavity is formed in the sleeve, an opening is formed in the far-end surface of the containing cavity, a plurality of clamping columns are fixed outside the sleeve through welding, and the extending direction of the clamping columns is the same as the axial direction of the sleeve; part of the clamping column extends and protrudes out of the far end face to form a clamping part. According to the lifting type stop valve opening and closing auxiliary device, the lifting type stop valve can be operated for a long distance to be opened or closed, an operator can conduct opening and closing operation of the lifting type stop valve more easily and safely, meanwhile, the scalding risk is avoided, and the exposure dose rate of the operator is reduced.

Description

Technical Field

[0001] This application relates to the field of valves, and more particularly to auxiliary devices for switching lift gate valves. Background Technology

[0002] Lift-type gate valves are widely used in nuclear power plant buildings, and they are found in various pipelines. For example... Figure 1 As shown, a lift-type gate valve generally includes a handwheel 10 for opening and closing the valve. A marking disc 11 is located in the center of the handwheel 10. Several connecting rods 12 are arranged between the outer edge of the handwheel 10 and the marking disc 11. The valve stem 13 extends through the marking disc 11 and is perpendicular to its surface. Due to the complex environment and space constraints within nuclear power plant buildings, some lift-type gate valves are installed in narrow, confined spaces, making it very difficult for on-site personnel to open and close them. For example, some lift-type gate valves are installed below a grid plate on the ground, requiring operators to kneel or lie on the grid plate to operate them, which is extremely inconvenient. Furthermore, instrument primary valves and drain valves in high-temperature pipelines of nuclear power plants often use manually operated lift-type gate valves. These pipelines frequently experience sealing weld leaks, posing a risk of burns to operators who approach these pipelines to operate the lift-type gate valves. When the sealing weld leak is severe, operators may even be unable to approach the lift-type gate valve to operate it.

[0003] Therefore, it is necessary to develop an auxiliary device that can operate the lift-type shut-off valve from a relatively long distance. Utility Model Content

[0004] To address one of the technical problems existing in the prior art, this application provides an auxiliary device for switching on and off a lift-type stop valve, which enables long-distance operation of the lift-type stop valve to open or close, making it easier and safer for operators to switch on and off the lift-type stop valve.

[0005] According to some embodiments of this application, a lifting shut-off valve switching auxiliary device includes a long rod. One end of the long rod is provided with an operating handle, which is perpendicular to the long rod. The other end of the long rod is provided with a sleeve. The side of the sleeve connected to the long rod is the proximal end face, and the other side of the sleeve away from the long rod is the distal end face. The sleeve has a receiving cavity inside, and the receiving cavity has an opening on the distal end face. Several locking posts are fixed to the outside of the sleeve by welding. The extending direction of the locking posts is the same as the axial direction of the sleeve, and a portion of the locking posts extends outward from the distal end face to form a locking portion.

[0006] In some embodiments of this application, three positioning posts are provided outside the sleeve, and the positioning posts are evenly distributed circumferentially outside the sleeve, with an included angle α of 120° between adjacent positioning posts.

[0007] In some embodiments of this application, the length of the long rod is 30cm to 60cm.

[0008] In some embodiments of this application, the length of the card slot is not less than 2cm.

[0009] In some embodiments of this application, the long rod is provided with a first through hole, the operating handle is inserted through the first through hole, and the operating handle can slide along the first through hole to adjust the length of the operating handle protruding outside the long rod.

[0010] In some embodiments of this application, the operating handle includes at least one detachable movable component, the movable component is provided with a docking screw, and the operating handle is provided with a docking screw hole that mates with the docking screw.

[0011] In some embodiments of this application, the operating handle further includes a fixing member, which is integrally formed with the long rod, and the mating screw hole is formed on the fixing member.

[0012] In some embodiments of this application, the fastener has two mating screw holes, which are respectively formed on two opposite end faces of the fastener.

[0013] Furthermore, some embodiments of this application also provide another lifting shut-off valve switching auxiliary device, including a long rod, one end of which is provided with an operating handle, the operating handle being perpendicular to the long rod; the other end of the long rod is provided with a connecting block, and a plurality of locking posts are fixedly provided on the connecting block, the locking posts being evenly distributed circumferentially, the locking posts being parallel to the long rod and extending in a direction away from the long rod, a limiting ring being provided between the locking posts, and a portion of the locking posts extending out of the limiting ring to form a locking portion.

[0014] Some embodiments of this application also provide another lifting shut-off valve switching auxiliary device, including a long rod, one end of which is provided with an operating handle, the operating handle being perpendicular to the long rod; the other end of the long rod is provided with a connecting block, and a plurality of locking posts are fixedly provided on the connecting block, the locking posts being evenly distributed circumferentially, the locking posts being parallel to the long rod and extending in a direction away from the long rod, each locking post being provided with a limiting protrusion, the limiting protrusions being located on the same cross section perpendicular to the extension direction of the locking post, and a portion of the locking post extending outward from the limiting protrusion to form a locking portion.

[0015] The beneficial effects of this application are:

[0016] The lifting gate valve switching auxiliary device provided in this application allows for remote control of the operating handle. The sleeve / limiting ring / limiting protrusion abuts against the indicator plate of the handwheel. Simultaneously, the locking part of the locking post extends downwards and engages with the connecting rod. When the operator rotates the operating handle remotely, the locking part pushes the connecting rod, causing the handwheel to rotate, thus enabling long-distance operation of the lifting gate valve to open or close. This lifting gate valve switching auxiliary device allows for long-distance operation of the lifting gate valve, making it easier and safer for operators to operate, while avoiding the risk of burns and reducing the radiation dose rate to personnel.

[0017] Other features and advantages of this application will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the description, claims and drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this application, the following description, in conjunction with the accompanying drawings and embodiments, will further explain this application. It should be understood that the following drawings only show certain embodiments of this application and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the handwheel structure of a lift-type shut-off valve;

[0020] Figure 2 This is a bottom view of an auxiliary device for switching a lift-type shut-off valve provided in this application;

[0021] Figure 3 yes Figure 2 Front view of the lift-type shut-off valve switch auxiliary device in the middle;

[0022] Figure 4 It is an optimized installation structure for the operating handle;

[0023] Figure 5 It is another optimized mounting structure for the operating handle;

[0024] Figure 6 This is a front view of another lifting shut-off valve switching auxiliary device provided in this application;

[0025] Figure 7 This is a front view of the third type of lift-type shut-off valve switching auxiliary device provided in this application.

[0026] Label Explanation:

[0027] Handwheel 10, indicator panel 11, connecting rod 12, valve stem 13;

[0028] Operating handle 100, movable part 110, docking screw 111, fixing part 120, docking screw hole 121, long rod 200, sleeve 300, receiving cavity 310, locking post 400, locking part 410, connecting block 500, limiting ring 600, limiting protrusion 700. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by associated similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different circumstances, or may be replaced by others. Replaced by components, materials, and methods. In some cases, this application... Some related procedures were not mentioned. The descriptions or illustrations in the specification are intended to avoid obscuring the core aspects of this application with excessive detail. For those skilled in the art, detailed descriptions of these related operations are not necessary; they can fully understand the related operations based on the descriptions in the specification and general technical knowledge in the field.

[0030] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments. At the same time, the steps or actions in the method description can be rearranged or adjusted in a manner obvious to those skilled in the art. Therefore, the various orders in the specification and drawings are only for the clear description of a particular embodiment and do not imply a necessary order, unless otherwise stated that a particular order must be followed.

[0031] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, the terms "connection" and "linkage" used in this application include both direct and indirect connections (linkages).

[0032] The following is in conjunction with the appendix Figures 2 to 7 The provided embodiments further illustrate the lifting shut-off valve switching auxiliary device proposed in this application.

[0033] like Figure 2 and Figure 3As shown, some embodiments of this application provide an auxiliary device for switching a lift-type gate valve. Specifically, the auxiliary device includes a long rod 200, with an operating handle 100 at one end, perpendicular to the long rod 200. A sleeve 300 is provided at the other end of the long rod 200. The side of the sleeve 300 connected to the long rod 200 is the proximal end face, and the side of the sleeve 300 away from the long rod 200 is the distal end face. A receiving cavity 310 is provided inside the sleeve 300, with an opening on the distal end face. The receiving cavity 310 is used to receive the valve stem 13 of the lift-type gate valve. Several locking posts 400 are welded to the outside of the sleeve 300. The extending direction of the locking posts 400 is the same as the axial direction of the sleeve 300, and a portion of the locking posts 400 protrudes beyond the distal end face to form a locking portion 410. Further, as... Figure 2 As shown, in some embodiments of this application, three locking posts 400 are provided outside the sleeve 300. The locking posts 400 are evenly distributed around the sleeve 300, and the included angle α between adjacent locking posts 400 is 120°. By adopting the above structure, the lifting stop valve switch auxiliary device can better match most handwheel 10 structures, and at the same time, the overall structure of the lifting stop valve switch auxiliary device is simpler and more beautiful.

[0034] In addition, such as Figure 6 As shown, some embodiments of this application also provide another lifting gate valve switching auxiliary device, which also includes a long rod 200. One end of the long rod 200 is provided with an operating handle 100, and the operating handle 100 is perpendicular to the long rod 200. The difference between the lifting gate valve switching auxiliary device of this embodiment and the first lifting gate valve switching auxiliary device described above is that the other end of the long rod 200 is provided with a connecting block 500. Several locking posts 400 are fixedly provided on the connecting block 500. The locking posts 400 are evenly distributed in a circle, leaving the middle position for receiving the valve stem 13 of the lifting gate valve. The locking posts 400 are parallel to the long rod 200 and extend away from the long rod 200. A limiting ring 600 is provided between the locking posts 400, and part of the locking post 400 extends out of the limiting ring 600 to form a locking part 410.

[0035] like Figure 7As shown, some embodiments of this application also provide a third type of lifting gate valve switching auxiliary device, which also includes a long rod 200. One end of the long rod 200 is provided with an operating handle 100, which is perpendicular to the long rod 200. The other end of the long rod 200 is provided with a connecting block 500, and a plurality of locking posts 400 are fixedly provided on the connecting block 500. The locking posts 400 are evenly distributed in a circle, leaving the middle position empty for receiving the valve stem 13 of the lifting gate valve. The locking post 400 and the long rod 200 are parallel and the locking post 400 extends away from the long rod 200. The difference between the lifting stop valve switch auxiliary device of this embodiment and the second type of lifting stop valve switch auxiliary device described above is that, in this embodiment, the locking post 400 is provided with limiting protrusions 700 (replacing the limiting ring 600). The limiting protrusions 700 are located on the same cross section perpendicular to the extension direction of the locking post 400, and a part of the locking post 400 extends out of the limiting protrusions 700 to form a locking part 410.

[0036] The lifting gate valve switching auxiliary device provided in this application allows for remote control of the operating handle 100. The sleeve 300 / limiting ring 600 / limiting protrusion 700 abut against the marking disc 11 of the handwheel 10. Simultaneously, the locking portion 410 of the locking post 400 extends downwards and locks between the connecting rods 12. When the operator rotates the operating handle 100 remotely, the locking portion 410 pushes the connecting rods 12, causing the handwheel 10 to rotate, thus enabling long-distance operation of the lifting gate valve to open or close. During operation of the lifting gate valve, the valve stem 13 extends or retracts with the rotation of the handwheel 10. This application includes a receiving cavity 310 to receive the valve stem 13, or the locking posts 400 are evenly distributed circumferentially to leave a central space for receiving the valve stem 13, preventing the valve stem 13 from directly colliding with the lifting gate valve switching auxiliary device. The lift-type shut-off valve switching auxiliary device of this application can help front-line operation and maintenance personnel to operate the lift-type shut-off valve from a long distance to open or close it, making it easier and safer for operators to operate the lift-type shut-off valve, while avoiding the risk of burns and reducing the radiation dose rate to personnel.

[0037] like Figures 3 to 7 As shown, in some embodiments of this application, the length of the long rod 200 is 30cm to 60cm. This length ensures that there is a sufficient safe distance between the operator and the lifting shut-off valve, while avoiding the distance being too long and affecting the operation and control of the lifting shut-off valve.

[0038] like Figures 3 to 7As shown, in some embodiments of this application, the length of the locking part 410 is not less than 2cm, so as to ensure that the locking part 410 can extend precisely between the connecting rods 12, so as to push the connecting rods 12 to drive the handwheel 10 to rotate.

[0039] In some embodiments of this application, components such as the operating handle 100, long rod 200, sleeve 300, locking post 400, connecting block 500, limiting ring 600, and limiting protrusion 700 are all made of stainless steel, making them sturdy and durable.

[0040] like Figure 4 As shown, the lifting shut-off valve switching auxiliary device of this application can further optimize the installation structure of the operating handle 100. Specifically, in some embodiments of this application, a first through hole is provided on the long rod 200, the operating handle 100 passes through the first through hole, and the operating handle 100 can slide along the first through hole to adjust the length of the operating handle 100 protruding from the long rod 200. The operating handle 100 is installed through the above structure, and the operator can adjust the position of the operating handle 100 according to actual needs, such as... Figure 4 As shown, the operating handle 100 can be extended to a longer length on one side of the long rod 200, thereby obtaining a more suitable torque.

[0041] like Figure 5 As shown, the lifting shut-off valve switching auxiliary device of this application also proposes another optimized structure for the operating handle 100. In some embodiments of this application, the operating handle 100 includes at least one detachable movable part 110, on which a docking screw 111 is provided, and on which a docking screw hole 121 is provided to mate with the docking screw 111. Normally, the movable part 110 can be removed to reduce the size of the lifting shut-off valve switching auxiliary device for easier storage. When in use, the movable part 110 can be installed as needed through the engagement of the docking screw 111 and the docking screw hole 121 to obtain a longer operating handle 100, thereby obtaining a more suitable turning torque. It is readily apparent that in some embodiments, the operating handle 100 may also include a fixing part 120, which is integrally formed with the long rod 200 to optimize the structure, reduce the number of parts and docking processes. The docking screw hole 121 is formed on the fixing part 120.

[0042] Furthermore, such as Figure 5 As shown, in some embodiments of this application, the fixing member 120 may also have two mating screw holes 121. The two mating screw holes 121 are respectively opened on two opposite end faces of the fixing member 120. The operator can combine the movable member 110 on any end face of the fixing member 120 according to actual needs, so as to more easily control the rotation of the operating handle 100.

[0043] It is understood that the above embodiments only illustrate preferred embodiments of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application. It should be noted that, for those skilled in the art, without departing from the concept of this application, the above technical features can be freely combined, and several modifications and improvements can be made, all of which fall within the protection scope of this application. Therefore, all equivalent transformations and modifications made within the scope of the claims of this application should fall within the coverage of the claims of this application.

Claims

1. A lifting-type shut-off valve switching auxiliary device, characterized in that, The device includes a long rod, one end of which is provided with an operating handle perpendicular to the long rod; the other end of the long rod is provided with a sleeve, the side of the sleeve connected to the long rod is the proximal end face, and the other side of the sleeve away from the long rod is the distal end face. The sleeve has a receiving cavity inside, and the receiving cavity has an opening on the distal end face. Several locking posts are fixed to the outside of the sleeve by welding, the extension direction of the locking posts is the same as the axial direction of the sleeve, and part of the locking posts protrudes out of the distal end face to form a locking part.

2. The lifting shut-off valve switching auxiliary device as described in claim 1, characterized in that, The sleeve is provided with three positioning posts, which are evenly distributed in a circle on the outside of the sleeve, and the included angle α between adjacent positioning posts is 120°.

3. The lifting shut-off valve switching auxiliary device as described in claim 1, characterized in that, The length of the long rod is 30cm to 60cm.

4. The lifting shut-off valve switching auxiliary device as described in claim 1, characterized in that, The length of the locking part is not less than 2cm.

5. The lifting shut-off valve switching auxiliary device as described in claim 1, characterized in that, The long rod has a first through hole, the operating handle passes through the first through hole, and the operating handle can slide along the first through hole to adjust the length of the operating handle protruding outside the long rod.

6. The lifting shut-off valve switching auxiliary device as described in claim 1, characterized in that, The operating handle includes at least one detachable movable part, on which a docking screw is provided, and the operating handle is provided with a docking screw hole that mates with the docking screw.

7. The lifting shut-off valve switching auxiliary device as described in claim 6, characterized in that, The operating handle also includes a fixing component, which is integrally formed with the long rod, and the docking screw hole is formed on the fixing component.

8. The lifting shut-off valve switching auxiliary device as described in claim 7, characterized in that, The fastener has two mating screw holes, which are respectively located on two opposite end faces of the fastener.

9. A lifting-type shut-off valve switching auxiliary device, characterized in that, The device includes a long rod, one end of which is provided with an operating handle perpendicular to the long rod; the other end of the long rod is provided with a connecting block, on which a plurality of locking posts are fixedly provided, the locking posts being evenly distributed in a circle, the locking posts being parallel to the long rod and extending away from the long rod, and a limit ring being provided between the locking posts, with a portion of the locking posts extending out of the limit ring to form a locking part.

10. A lifting-type shut-off valve switching auxiliary device, characterized in that, The device includes a long rod, one end of which is provided with an operating handle perpendicular to the long rod; the other end of the long rod is provided with a connecting block, on which a plurality of locking posts are fixedly provided. The locking posts are evenly distributed in a circle, parallel to the long rod, and extend away from the long rod. Each locking post is provided with a limiting protrusion, which is located on the same cross section perpendicular to the extension direction of the locking post. A portion of the locking post extends outward from the limiting protrusion to form a locking part.

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