Valve opening and closing auxiliary device

Abstract

The utility model discloses a valve opening and closing auxiliary device, and particularly relates to the technical field of valve opening and closing, the valve opening and closing auxiliary device comprises an assembly structure, and the assembly structure comprises a fixing rod, a U-shaped abutting plate, a buffer spring and a positioning plate; the two inner sides of the U-shaped abutting plate are fixedly connected with the two corresponding positioning plates through buffer springs, the side, away from the positioning plates, of the U-shaped abutting plate is fixedly connected with one end of a fixing rod, and the other end of the fixing rod is fixedly connected with a disc. An assembling disc is fixedly installed in the center of the disc, a sleeve column matched with a socket spanner is arranged in the center of the assembling disc, and the end, penetrating into the assembling disc, of the sleeve column is connected with the assembling disc through a clamping mechanism. According to the valve opening and closing auxiliary device, the assembling structure and the disc are arranged, and the assembling structure and the disc are connected in a matched mode, so that when the valve opening and closing auxiliary device is installed, various valve bodies of different types can be fixed and used, and the maintenance efficiency and maintenance convenience of workers can be improved.

Description

Technical Field

[0001] This utility model relates to the field of valve opening and closing technology, and more specifically, to a valve opening and closing auxiliary device. Background Technology

[0002] It is known that valves, as key fluid control equipment in nuclear power plant operating systems, are numerous and complex in type. Among them, the operation and maintenance of special valves such as large valves, high-torque valves, and long-stroke valves present significant technical challenges. For example, manual operation of these valves requires a great deal of manpower and poses the risk of difficulty in ensuring operational accuracy. Therefore, existing technologies often involve installing auxiliary devices on valves, which work in conjunction with pneumatic / electric wrenches to facilitate valve opening and closing operations, greatly reducing the difficulty of operation for workers.

[0003] However, in actual use, existing valves have some problems: for example, traditional auxiliary devices do not have necessary protective measures. When the auxiliary opening and closing device is installed on the valve, since the valve rotates when opening and closing, the handle may be worn due to excessive force during rotation, leaving marks. Especially in high-frequency maintenance operations, this irreversible wear will significantly shorten the valve's service life and may cause secondary failures such as sealing failure. If the valve continues to rotate after it has reached the opening and closing position, it will cause damage to the valve, resulting in poor actual performance.

[0004] Therefore, this utility model proposes a valve opening and closing auxiliary device as a further improvement, in order to meet the needs of valve maintenance, improve maintenance efficiency, maintain the normal opening and closing state of the valve, and reduce labor costs. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a valve opening and closing auxiliary device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve opening and closing auxiliary device, comprising: an assembly structure, wherein the assembly structure comprises: a fixing rod, a U-shaped abutment plate, a buffer spring, and a positioning plate;

[0007] The two inner sides of the U-shaped abutment are fixedly connected to the corresponding two positioning plates by buffer springs. The side of the U-shaped abutment away from the positioning plate is fixedly connected to one end of the fixing rod. The other end of the fixing rod is fixedly connected to a disc.

[0008] An assembly plate is fixedly installed at the center of the disc, and a socket post that cooperates with a socket wrench is provided at the center of the assembly plate. One end of the socket post is inserted into the assembly plate and connected to the assembly plate through a snap-fit ​​mechanism.

[0009] Furthermore, the locking mechanism includes: a rotating block and an arc-shaped abutment block;

[0010] The assembly plate has an installation cavity in the middle, a sliding groove in the inner wall of the installation cavity, a telescopic groove in the inner wall of the sliding groove, and the inner wall of the telescopic groove is fixedly connected to the arc-shaped abutment block by a return spring. Two rotating blocks are fixedly installed at one end of the sleeve insert into the installation cavity, and the rotating blocks are slidably connected to the sliding groove; the rotating blocks are in contact with the arc-shaped abutment block.

[0011] Furthermore, the assembly structure also includes: an auxiliary displacement plate and a positioning rod;

[0012] The positioning rod is fixedly installed at both ends of the U-shaped support plate, and the two auxiliary displacement plates are movably sleeved on the positioning rod, and the two auxiliary displacement plates are fixedly connected to the corresponding two positioning plates.

[0013] Furthermore, both positioning plates have arc-shaped grooves on the side away from the buffer spring, and rubber anti-slip pads are attached to the sides of both positioning plates and their arc-shaped grooves.

[0014] Furthermore, the surface of the disc is provided with a ring-shaped distribution of insertion slots, and several of the fixing rods are inserted into the corresponding insertion slots.

[0015] Furthermore, the end of the sleeve furthest from the disc is provided with a rectangular sleeve limiting hole that mates with a sleeve wrench.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. Compared with existing technologies, by setting up an assembly structure and a disc, and utilizing the cooperation between the assembly structure and the disc, the valve opening and closing auxiliary device can be fixed for various types of valve bodies during installation, which can improve the efficiency and ease of maintenance for workers; by installing a buffer spring on one side of each positioning plate, a buffering force can be generated when the valve body is opened and closed and rotated, and a rubber anti-slip pad is provided at the position where the rotating handle is abutted on the inner side of the positioning plate, which can protect the rotating handle installed on the valve body from damage when the valve body is opened and closed.

[0018] 2. Compared with existing technologies, by setting up a sleeve, arc-shaped abutments, and a return spring, the sleeve is rotatable. When the sleeve rotates, it is resisted by the large elastic resistance generated by the two arc-shaped abutments, which can drive the entire valve body to rotate and open and close. When the valve body reaches the critical point of rotation, the two rotating blocks can generate a large directional pressure, which causes the two arc-shaped abutments to apply downward compression pressure to the two return springs. As a result, the two rotating blocks have no obstruction and can slide out into the sliding groove on their own. This can remind the operator that the valve body has finished opening and closing, and prevent the valve body from continuing to rotate. That is, it avoids the valve body from being continuously rotated by the generated rotational force after the valve body has finished opening and closing, thus protecting the valve body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the fixing rod and the disc of this utility model.

[0021] Figure 3 This is a side view of the present invention.

[0022] Figure 4 This is a schematic diagram of the insertion slot of this utility model.

[0023] Figure 5 for Figure 2 A magnified structural diagram of point A in the middle.

[0024] Figure 6 for Figure 4 A magnified structural diagram at point B in the middle.

[0025] The attached figures are labeled as follows:

[0026] 1. Assembly structure;

[0027] 11. Fixing rod; 12. U-shaped stop plate; 13. Buffer spring; 14. Positioning plate; 15. Auxiliary displacement plate;

[0028] 16. Positioning rod;

[0029] 2. Disc; 21. Insertion slot;

[0030] 3. Assembly tray; 31. Mounting cavity; 32. Sliding groove; 33. Telescopic groove;

[0031] 4. Sleeve post; 41. Sleeve limiting hole;

[0032] 5. Snap-fit ​​mechanism; 51. Rotating block; 52. Arc-shaped abutment block; 53. Return spring;

[0033] 6. Valve body;

[0034] 7. Pipelines;

[0035] 8. Turn the handle. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages 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.

[0037] Among them, the known conventional disclosed technology is as follows: the valve body 6 is connected to the pipeline 7 via a flange; and the surface of the valve body 6 is provided with a rotating handle 8;

[0038] Specific description of the rotating handle 8: The rotating handle 8 is circular in shape. The valve stem on the valve body 6 is connected to the rotating handle 8. The valve body 6 can be rotated to open and close by rotating the rotating handle 8.

[0039] As attached Figure 1 -Appendix Figure 6 The valve opening and closing auxiliary device shown includes: an assembly structure 1, which includes: a fixing rod 11, a U-shaped abutment plate 12, a buffer spring 13, and a positioning plate 14;

[0040] At least two positioning plates 14 are clamped on both sides of the rotating handle 8;

[0041] Both inner sides of the U-shaped abutment 12 are fixedly connected to the corresponding two positioning plates 14 by buffer springs 13, and the side of the U-shaped abutment 12 away from the positioning plate 14 is fixedly connected to one end of the fixing rod 11.

[0042] The fixing rod 11 and the U-shaped abutment 12 are installed as a whole; the U-shaped abutment 12 is U-shaped, which makes it easy to fit the connecting rods of different shapes on the rotating handle 8; and during installation, the two positioning plates 14 on the inner side of the U-shaped abutment 12 generate a certain clamping force on the connecting rods on the rotating handle 8 under the action of the buffer spring 13.

[0043] The other end of each fixing rod 11 is fixedly connected to a disc 2;

[0044] Each fixing rod 11 has one end fixedly connected to the disc 2 by a nut. When the entire device is installed on the rotating handle 8 on the surface of the valve body 6, the disc 2 is supported and connected by the action of multiple fixing rods 11. A groove for screwing the nut is opened on one end of the fixing rod 11. Therefore, the entire part can be fixed by the nut after the fixing rod 11 is positioned and installed.

[0045] An assembly plate 3 is fixedly installed at the center of disc 2.

[0046] Among them, the centers of disk 2 and assembly disk 3 are located on the same center line;

[0047] A socket 4 that mates with a socket wrench is provided at the center of the assembly plate 3. One end of the socket 4 is inserted into the assembly plate 3 and connected to the assembly plate 3 through a snap-fit ​​mechanism 5.

[0048] The rotating handle 8 can be connected to a corresponding number of assembly structures 1 based on the overall number of connecting rods. Each assembly structure 1 has a U-shaped abutment 12 mounted on a connecting rod of the rotating handle 8. Each assembly structure 1 can be fixedly mounted on a connecting rod. The fixed rod 11 of the U-shaped abutment 12 is fixedly connected to the disc 2. The disc 2 is fixedly connected to an assembly plate 3 with a sleeve 4 inserted into it. Rotating the sleeve 4 can drive the rotating handle 8 to rotate. When an electric or pneumatic socket wrench is inserted into the sleeve 4, the entire rotating handle 8 can be rotated to open or close the valve body 6. The sleeve 4, when used in conjunction with external auxiliary tools, reduces the difficulty of operation for workers.

[0049] By using the assembly structure 1, the rotating handle 8 on various types of valve bodies 6 can be fixed for use, which can improve the efficiency and ease of maintenance for staff.

[0050] The assembly plate 3 is used to assist in setting the socket 4. The assembly plate 3 is fixed on the disc 2, and one end of the socket 4 can be connected inside the assembly plate 3 for use. The socket 4 is used in conjunction with electric or pneumatic socket wrenches.

[0051] In a preferred embodiment, as shown in the appendix Figure 6 As shown, the locking mechanism 5 includes: a rotating block 51 and an arc-shaped abutment block 52;

[0052] The assembly plate 3 has an installation cavity 31 in the middle. The inner wall of the installation cavity 31 has a sliding groove 32. The inner wall of the sliding groove 32 has a telescopic groove 33. The inner wall of the telescopic groove 33 is fixedly connected to the arc-shaped abutment 52 by a return spring 53. Two rotating blocks 51 are fixedly installed at one end of the sleeve 4 that is inserted into the installation cavity 31. The rotating blocks 51 are slidably connected to the sliding groove 32. The rotating blocks 51 are in contact with the arc-shaped abutment 52.

[0053] In this case, since the mounting cavity 31 is opened in the middle of the assembly plate 3, one end of the sleeve 4 is located in the mounting cavity 31, and the rotating block 51 fixedly installed on the surface of the sleeve 4 is located in the sliding groove 32. Thus, the internal space of the sliding groove 32 facilitates the sliding of the two rotating blocks 51 inside it. That is, when the sleeve 4 rotates in the mounting cavity 31, the two rotating blocks 51 slide in the sliding groove 32.

[0054] The arc-shaped abutment 52 can freely extend and retract within the telescopic groove 33, while the return spring 53 provides support for the arc-shaped abutment 52, allowing it to pass through the telescopic groove 33 into the sliding groove 32. The arc-shaped abutment 52 then abuts against the rotating block 51 that slides within the sliding groove 32. The top of the arc-shaped abutment 52 has an arc-shaped sliding surface, and the bottom of the rotating block 51 also has an arc-shaped sliding surface. When the two abut against each other, the rotating block 51 applies pressure to the arc-shaped abutment 52 to compress the return spring 53. When the elastic force of the return spring 53 is greater than the pressure of the return spring 53, the rotation of the sleeve 4 can drive the assembly plate 3 to rotate, meaning that the rotation of the sleeve 4 can open the valve body 6 for use.

[0055] Because the force required to open and close the valve body 6 is not high, while the elastic resistance generated by the two return springs 53 is relatively large, the rotation of the sleeve 4 will cause the two rotating blocks 51 to abut against the side of the arc-shaped abutment block 52. When the valve body 6 is opened to the top, a large rotational force will be generated. At this time, the rotational force will cause the bottom end of the rotating block 51 to quickly pass through the top of the arc-shaped abutment block 52, causing the arc-shaped abutment block 52 to be compressed under the condition of large resistance. This allows the two rotating blocks 51 to pass through the two arc-shaped abutment blocks 52 without any obstruction, thus causing the sleeve 4 to rotate and slip out as a whole. This will remind the operator that the valve body 6 has reached the rotational force, thereby protecting the valve body 6.

[0056] In a preferred embodiment, as shown in the appendix Figure 5 As shown, the assembly structure 1 also includes: an auxiliary displacement plate 15 and a positioning rod 16;

[0057] The positioning rod 16 is fixedly installed at both ends of the U-shaped support plate 12, and the two auxiliary displacement plates 15 are movably sleeved on the positioning rod 16, and the two auxiliary displacement plates 15 are fixedly connected to the corresponding two positioning plates 14.

[0058] According to the thickness of the connecting rod on the rotating handle 8, two auxiliary displacement plates 15 are used to drive two positioning plates 14 to press the buffer springs 13 to both sides. After being pressed and reset, the buffer springs 13 can bring the two positioning plates 14 close to the surface of the connecting rod, thereby clamping the connecting rod. The surfaces of the two auxiliary displacement plates 15 are provided with grooves that slide to connect with the positioning rod 16. When the positioning rod 16 is used to fit against the connecting rod, the positioning rod 16 can be inserted through the grooves opened in the two auxiliary displacement plates 15. Then, screws and nuts are used to fix the tail end of the positioning rod 16 to both ends of the U-shaped abutment plate 12, thereby achieving the limit of fixing the connecting rod as a whole.

[0059] In a preferred embodiment, as shown in the appendix Figure 5 As shown, both positioning plates 14 have arc-shaped grooves on the side away from the buffer spring 13, and rubber anti-slip pads are attached to the sides of both positioning plates 14 and their arc-shaped grooves.

[0060] Since the two positioning plates 14 are rectangular in shape and have arc-shaped grooves on their inner sides, the positioning plates 14 can be used for both the rectangular connecting rod on the rotating handle 8 of the valve body 6 and the cylindrical connecting rod on the rotating handle 8 of the valve body 6, thus expanding the applicability of the entire auxiliary opening and closing device. Since the rubber anti-slip pad abuts against and fits against the rectangular connecting rod on the rotating handle 8, the rubber anti-slip pad protects the rotating handle 8 of the valve body 6 during fixed installation. This prevents the connecting rod from excessively contacting the positioning plate 14 and causing wear when the valve body 6 is rotated and opened and closed using a socket wrench, thus protecting the rotating handle 8 of the valve body 6 from damage and further improving the protective effect.

[0061] In a preferred embodiment, as shown in the appendix Figure 1 and attached Figure 4 As shown, the surface of the disc 2 is provided with a ring-shaped insertion groove 21, and several fixing rods 11 are inserted into the corresponding insertion groove 21.

[0062] The circular array of insertion slots 21 on the surface of the disc 2 is fixedly engaged with the corresponding fixing rods 11. The disc 2 is designed to facilitate the use of rotating handles 8 on different types of valve bodies 6. The multiple insertion slots 21 on the disc 2 can be used in conjunction with each fixing rod 11 during the auxiliary installation of the valve body 6, so as to achieve the positioning and fixing of each connecting rod on the rotating handle 8.

[0063] In a preferred embodiment, as shown in the appendix Figure 1 As shown, the end of the sleeve 4 away from the disc 2 is provided with a rectangular sleeve limiting hole 41 that cooperates with the sleeve wrench.

[0064] The socket 4 is designed for use with electric or pneumatic socket wrenches, allowing the socket wrench to be inserted into the socket limiting hole 41 for positioning. Because the socket limiting hole 41 is rectangular, it matches the limiting block on the socket wrench; when the socket wrench is inserted into the socket limiting hole 41, the socket 4 rotates as a whole.

[0065] Working principle of this utility model:

[0066] When in use, select an appropriate number of assembly structures 1 according to the type of rotating handle 8 installed on the surface of the valve body 6. By positioning the disc 2 on the rotating handle 8 installed on the surface of the valve body 6 and passing each fixing rod 11 through the corresponding insertion slot 21, the two auxiliary displacement plates 15 can drive the two positioning plates 14 to abut against and fit against the connecting rod of the rotating handle 8.

[0067] Since the two positioning plates 14 can be used for different types of rotating handles 8, the two positioning plates 14 can be clamped together under the action of the two buffer springs 13, and finally the U-shaped abutment 12 and the two auxiliary displacement plates 15 are inserted and fixed by using the positioning rod 16, so as to fix and limit the connecting rod of the rotating handle 8.

[0068] When the valve body 6 is opened or closed, an electric socket wrench is used so that the wrench can be inserted into the socket limiting hole 41 for limiting. The operation of the electric socket wrench can drive the two rotating blocks 51 on the sleeve 4 to abut against the two arc-shaped blocks 52 respectively. The two arc-shaped blocks 52 are subjected to a large elastic resistance provided by the return spring 53, thereby limiting the sleeve 4. At this time, the entire valve body 6 can be rotated to open and close.

[0069] When the valve body 6 rotates to the critical point, the two rotating blocks 51 can generate a large directional pressure, which causes the two arc-shaped abutments 52 to apply downward compression pressure to the two return springs 53. As a result, the two rotating blocks 51 have no obstruction and can slide out of the sliding groove 32 on their own, which can remind the operator that the valve body 6 has finished opening and closing, prevent the valve body 6 from continuing to rotate, and protect the valve body 6.

[0070] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve opening and closing auxiliary device, characterized in that: include: Assembly structure (1), the assembly structure (1) includes: a fixing rod (11), a U-shaped abutment plate (12), a buffer spring (13) and a positioning plate (14); The two inner sides of the U-shaped abutment (12) are fixedly connected to the corresponding two positioning plates (14) by buffer springs (13). The side of the U-shaped abutment (12) away from the positioning plate (14) is fixedly connected to one end of the fixing rod (11). The other end of the fixing rod (11) is fixedly connected to a disc (2). An assembly plate (3) is fixedly installed at the center of the disc (2). A socket (4) that cooperates with a socket wrench is provided at the center of the assembly plate (3). One end of the socket (4) that passes through the assembly plate (3) is connected to the assembly plate (3) through a snap-fit ​​mechanism (5).

2. The valve opening and closing auxiliary device according to claim 1, characterized in that: The snap-fit ​​mechanism (5) includes: a rotating block (51) and an arc-shaped abutment block (52); The assembly plate (3) has an installation cavity (31) in the middle. The inner wall of the installation cavity (31) has a sliding groove (32). The inner wall of the sliding groove (32) has a telescopic groove (33). The inner wall of the telescopic groove (33) is fixedly connected to the arc-shaped abutment (52) by a return spring (53). Two rotating blocks (51) are fixedly installed at one end of the sleeve (4) inserted into the installation cavity (31). The rotating blocks (51) are slidably connected to the sliding groove (32). The rotating blocks (51) are in contact with the arc-shaped abutment (52).

3. The valve opening and closing auxiliary device according to claim 1, characterized in that: The assembly structure (1) further includes: an auxiliary displacement plate (15) and a positioning rod (16); The positioning rod (16) is fixedly installed at both ends of the U-shaped abutment plate (12), and the two auxiliary displacement plates (15) are movably sleeved on the positioning rod (16), and the two auxiliary displacement plates (15) are fixedly connected to the corresponding two positioning plates (14).

4. The valve opening and closing auxiliary device according to claim 1, characterized in that: Both positioning plates (14) have arc-shaped grooves on the side away from the buffer spring (13), and rubber anti-slip pads are attached to the sides of both positioning plates (14) and the arc-shaped grooves thereon.

5. The valve opening and closing auxiliary device according to claim 1, characterized in that: The surface of the disc (2) is provided with a ring-shaped insertion groove (21), and several fixing rods (11) are inserted into the corresponding insertion groove (21).

6. The valve opening and closing auxiliary device according to claim 1, characterized in that: The end of the sleeve (4) away from the disc (2) is provided with a rectangular sleeve limiting hole (41) that cooperates with the sleeve wrench.

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