A convenient opening and closing device for valve handwheels

Abstract

This utility model discloses a convenient opening and closing device for valve handwheels, mainly relating to the field of valve opening and closing. It includes an opening and closing ring that works with the handwheel. The handwheel has multiple radial rods inside, and the opening and closing ring has a push rod. Multiple sleeves are slidably fitted onto the opening and closing ring. The bottom of each sleeve has symmetrically arranged locking teeth, and each locking tooth has a locking pin. The locking pins on both sides of the locking teeth contact the two sides of the radial rods respectively. The opening and closing ring has multiple positioning holes, and the sleeves have positioning pins that cooperate with the positioning holes. The beneficial effects of this utility model are: it solves the technical problem that using tools such as wrenches to assist in opening and closing the handwheel can easily damage the valve handwheel; it increases the torque while increasing the contact area with the valve handwheel, making the valve handwheel easier to rotate, avoiding damage to the valve handwheel, and improving the convenience of valve opening and closing.

Description

Technical Field

[0001] This utility model relates to the field of valve handwheel opening and closing, specifically a convenient opening and closing device for valve handwheels. Background Technology

[0002] Some existing pipeline valves use handwheels for opening and closing, which improves the convenience of valve control. However, when the valve is large or rusted after long-term use, the handwheel becomes difficult to turn smoothly, increasing the difficulty of opening the valve. In existing improvements, workers usually use wrenches or other tools to increase the torque, thereby reducing the force required to open and close the valve, making it easier to operate. However, when existing wrenches and other tools are used with the valve handwheel, the contact area between them is relatively small, resulting in high pressure on the contact point of the valve handwheel. This can easily damage the valve handwheel and affect its service life. Utility Model Content

[0003] The purpose of this utility model is to provide a convenient opening and closing device for valve handwheels. It can solve the technical problem that the valve handwheel is easily damaged when using tools such as wrenches to assist in opening and closing the handwheel. It increases the torque and the contact area with the valve handwheel, making the valve handwheel easier to rotate, avoiding damage to the valve handwheel, and improving the convenience of opening and closing the valve.

[0004] To achieve the above objectives, this utility model employs the following technical solution: A convenient opening and closing device for a valve handwheel includes an opening and closing ring that works in conjunction with the handwheel. The handwheel has multiple radial rods inside. The opening and closing ring has a push rod. Multiple sleeves are slidably fitted onto the opening and closing ring. The bottom of each sleeve has symmetrical locking teeth. Each locking tooth has a locking pin. The locking pins on both sides of the locking teeth contact the two sides of the radial rods respectively. The opening and closing ring has multiple positioning holes. The sleeves have positioning pins that cooperate with the positioning holes.

[0005] Furthermore, the end of the locking post is provided with a circular plate, which contacts the side of the radial rod.

[0006] Furthermore, the locking pin is threadedly connected to the locking teeth, and the end of the locking pin passes through the locking teeth and contacts the side of the radial rod.

[0007] Furthermore, the positioning pin penetrates the side wall of the sleeve and is threadedly connected to the positioning hole.

[0008] Furthermore, a reinforcing sleeve is provided inside the positioning hole, and the positioning post penetrates the side wall of the sleeve and is connected to the internal thread of the reinforcing sleeve.

[0009] Furthermore, the positioning holes are arranged in a circular array on the starting and closing loops, and the array pitch angle of the positioning holes is 12 degrees or an integer multiple of 12 degrees.

[0010] Furthermore, one end of the push rod is provided with a handle, and the handle is provided with anti-slip protrusions.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The structure of this utility model includes a starting and closing ring, on which multiple sleeves are provided. The bottom of the sleeves is symmetrically provided with locking teeth, and locking pins are provided on the locking teeth. The locking pins on the locking teeth on both sides contact the two sides of the radial rod respectively. When the handwheel is rotated, the multiple sleeves on the starting and closing ring are aligned with the multiple radial rods at the corresponding positions, and the starting and closing ring is moved downward so that the locking teeth on both sides of the bottom of the sleeves are located on both sides of the radial rod. Then, the locking pins on the locking teeth are moved to contact the sides of the radial rod, thus connecting the starting and closing ring with the radial rod on the handwheel. By pushing the push rod on the starting and closing ring, the handwheel can be rotated, which increases the torque on the handwheel, reduces the force required to rotate the handwheel, and improves the convenience of opening and closing the handwheel. Moreover, the starting and closing ring is connected to the handwheel through multiple sleeves, resulting in more points of action and a larger area of ​​action. Therefore, the pressure at the contact points is lower, which makes it less likely to damage the handwheel and ensures the integrity of the handwheel. 2. Multiple positioning holes are provided on the opening and closing ring, and positioning pins are provided on the sleeve to cooperate with the positioning holes. Since the position and number of radial rods on different handwheels are different, the position of the sleeve can be slid according to the number and position of the radial rods, so that multiple sleeves can accurately match the position of the radial rods on the handwheel, thereby improving the adaptability to different types of handwheels, greatly expanding the application range of this device, and improving the adaptability to the opening and closing control of different types of handwheels. Attached Figure Description

[0012] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Appendix Figure 2 This is a front view of the present invention.

[0014] Appendix Figure 3 This is an appendix to this utility model. Figure 2 A cross-sectional view along the AA direction.

[0015] Appendix Figure 4 This is an appendix to this utility model. Figure 2 A cross-sectional view along the BB direction.

[0016] Appendix Figure 5 This is an appendix to this utility model. Figure 4 A magnified view of part C in the middle.

[0017] The labels shown in the attached diagram: 1. Handwheel; 2. Opening and closing ring; 3. Radial rod; 4. Push rod; 5. Tube sleeve; 6. Clamping tooth; 7. Clamping post; 8. Positioning hole; 9. Positioning post; 10. Round plate; 11. Reinforcing sleeve; 12. Handle; 13. Anti-slip protrusion. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.

[0019] Reference Figure 1 and Figure 2This utility model describes a convenient opening and closing device for a valve handwheel. The main structure includes an opening / closing ring 2 that works in conjunction with the handwheel 1. The handwheel 1 is a structure used on existing gate valves or ball valves to control the opening and closing of the valve. The opening and closing operation is controlled by manually rotating the handwheel 1. The opening / closing ring 2 is a circular structure made of metal, and its size is set according to actual usage requirements to ensure sufficient structural strength and prevent bending deformation during use. The diameter of the opening / closing ring 2 is smaller than that of the handwheel 1. Multiple radial rods 3 are fixed inside the handwheel 1 by welding or integral molding. The radial rods 3 are used to connect the valve body and the outer ring of the handwheel 1, improving the structural robustness of the handwheel 1. The opening / closing ring 2 is fixed by welding or integral molding. A push rod 4 is fixed to the opening and closing ring 2, extending radially along the ring. With this structure, after the opening and closing ring 2 is connected to the handwheel 1, the operator only needs to push the push rod 4 to drive the handwheel 1 to rotate. This structure greatly increases the torque applied to the handwheel 1, saving the force required to rotate it and making the operation easier. It also makes it easier to open larger valves or handwheels that have rusted after long-term use, improving the convenience of valve handwheel rotation and valve opening and closing control. Multiple sleeves 5 are slidably fitted onto the opening and closing ring 2. Each sleeve 5 is an arc-shaped structure fitted outside the opening and closing ring 2, made of metal with a certain wall thickness to ensure sufficient structural strength. According to actual usage requirements, the sleeve 5 is slidable to adapt to the position of the radial rod 3 on the handwheel 1. The bottom of the sleeve 5 is symmetrically fixed with locking teeth 6 by welding or integral molding. Each locking tooth 6 has a locking post 7, which can move laterally relative to the locking tooth 6 and remain in a designated position after movement. The locking posts 7 on both sides of the locking teeth 6 contact the two sides of the radial rod 3 respectively. With this structure, when the opening / closing ring 2 is connected to the handwheel 1, the locking teeth 6 on both sides of the bottom of the sleeve 5 are locked onto the two sides of the radial rod 3 of the handwheel 1, and the locking posts 7 are moved so that their ends contact the sides of the radial rod 3, thereby achieving the connection between the opening / closing ring 2 and the handwheel 1. Afterwards, only the push rod 4 needs to be pushed to drive the rotation of the handwheel 1, increasing the efficiency of the handwheel 1. The torque applied makes it easier to rotate the handwheel 1. The opening and closing ring 2 is connected to the handwheel 1 via multiple sleeves 5, increasing the number of connection points, reducing pressure at the contact points, and preventing damage to the handwheel 1. This improves the ease of opening and closing control of the valve handwheel 1 while ensuring its integrity. The opening and closing ring 2 has multiple positioning holes 8, which are recessed inwards from the surface of the opening and closing ring 2. The sleeves 5 have positioning pins 9 that cooperate with the positioning holes 8. Since the position and number of radial rods 3 differ on different types of handwheels 1, when opening and closing different types of handwheels 1, the sleeves 5 can be slid to the corresponding positioning holes 8 on the opening and closing ring 2, so that the sleeves 5 correspond to the positions of the radial rods 3 on the handwheel 1.Then, the position of the sleeve 5 is fixed by the cooperation of the positioning pin 9 and the positioning hole 8, thereby realizing the connection and cooperation between the opening and closing loop 2 and different types of handwheels 1. This greatly improves the adaptability to different types of handwheels 1, realizes the opening and closing control of various existing types of valves, and greatly expands the application range of this device.

[0020] Preferred, refer to Figure 3 The end of the locking post 7 is fixed with a circular plate 10 by welding or integral molding. The circular plate 10 contacts the side of the radial rod 3. The diameter of the circular plate 10 is larger than the diameter of the locking post 7, thereby increasing the contact area between the end of the locking post 7 and the radial rod 3, further avoiding possible damage to the contact position of the handwheel 1, and ensuring the integrity of the handwheel 1.

[0021] Preferably, the locking pin 7 is threadedly connected to the locking tooth 6, and the end of the locking pin 7 passes through the locking tooth 6 and contacts the side of the radial rod 3. With this structure, the locking pin 7 can be driven to move relative to the locking tooth 6 by rotating the locking pin 7 under the action of the threaded connection. After moving, the locking pin 7 is kept in a fixed state relative to the locking tooth 6 under the action of the threaded connection, making the cooperation between the locking teeth 6 on both sides and the radial rod 3 more convenient and stable.

[0022] Preferably, the positioning post 9 passes through the side wall of the sleeve 5 and is threadedly connected to the positioning hole 8. Specifically, a through hole is provided at the top of the sleeve 5. After the sleeve 5 moves to the corresponding position of the positioning hole 8, the through hole is aligned with the positioning hole 8. At this time, it is only necessary to pass the positioning post 9 through the through hole and rotate it threadedly to the positioning hole 8 to fix the position of the sleeve 5. The fixing operation of the sleeve 5 is more convenient and firm, and it is also more convenient to change the position of the sleeve 5 in the future.

[0023] Preferred, refer to Figure 4 and Figure 5 The positioning hole 8 is fixed inside by welding with a reinforcing sleeve 11. The positioning post 9 penetrates the side wall of the sleeve 5 and is threadedly connected to the inside of the reinforcing sleeve 11. The setting of the reinforcing sleeve 11 can increase the robustness of the positioning hole 8 structure, thereby avoiding the situation where the structural strength of the starting and closing ring 2 decreases due to too many openings, improving the robustness of the threaded fit between the positioning post 9 and the positioning hole 8, and improving the overall structural strength of the starting and closing ring 2.

[0024] Preferably, the positioning holes 8 are arranged in a circular array on the starting and closing ring 2, and the array pitch angle of the positioning holes 8 is 12 degrees or an integer multiple of 12 degrees. This structure allows the device to fully match the traditional handwheel 1 structure with 3 radial rods 3 or 5 radial rods 3 on the market, so that the sleeve 5 can rotate to the corresponding position to cooperate with the radial rods 3, further improving the matching effect of the device with the existing handwheel 1 structure on the market.

[0025] Preferably, one end of the push rod 4 is fixed with a handle 12 by welding or bolting. The handle 12 is provided with anti-slip protrusions 13. This structure allows one hand to hold the handle 12 and contact the anti-slip protrusions 13 when the operator pushes the push rod 4, thereby making the push of the push rod 4 more secure and less prone to slippage, and further improving the smoothness of rotating the valve handwheel 1.

[0026] Working Principle: The structure of this utility model includes a starting and closing ring 2, on which multiple sleeves 5 are provided. The bottom of each sleeve 5 is symmetrically provided with locking teeth 6, and locking pins 7 are provided on the locking teeth 6. The locking pins 7 on both sides of the locking teeth 6 respectively contact the two sides of the radial rods 3. When the handwheel 1 is rotated, the multiple sleeves 5 on the starting and closing ring 2 are aligned with the corresponding radial rods 3, and the starting and closing ring 2 is moved downwards, so that the locking teeth 6 on both sides of the bottom of the sleeves 5 are located on both sides of the radial rods 3. Then, the locking pins 7 on the locking teeth 6 are moved to contact the sides of the radial rods 3. This connects the starting and closing ring 2 with the radial rods 3 on the handwheel 1. By pushing the push rod 4 on the starting and closing ring 2, the handwheel 1 can be rotated, increasing the torque applied to the handwheel 1 and reducing the time required for the handwheel 1 to rotate. The required force improves the convenience of opening and closing handwheel 1. Furthermore, the opening and closing ring 2 is connected to handwheel 1 through multiple sleeves 5, resulting in more points of action and a larger action area. Therefore, the pressure at the contact points is lower, making it less likely to damage handwheel 1 and ensuring its integrity. Multiple positioning holes 8 are provided on the opening and closing ring 2, and positioning pins 9 are provided on the sleeves 5 to cooperate with the positioning holes 8. Since the positions and numbers of radial rods 3 on different handwheels 1 are different, the position of the sleeves 5 can be slid according to the number and position of the radial rods 3. This allows multiple sleeves 5 to accurately match the positions of the radial rods 3 on the handwheel 1, thereby improving the adaptability to different types of handwheels 1, greatly expanding the application range of this device, and enhancing its adaptability to the opening and closing control of different types of handwheels 1.

Claims

1. A convenient opening and closing device for a valve handwheel, comprising an opening and closing ring (2) for use with the handwheel (1), wherein the handwheel (1) has a plurality of radial rods (3) inside, characterized in that: The opening and closing ring (2) is provided with a push rod (4), and multiple sleeves (5) are slidably sleeved on the opening and closing ring (2). The bottom of the sleeve (5) is symmetrically provided with locking teeth (6), and locking pins (7) are provided on the locking teeth (6). The locking pins (7) on the locking teeth (6) on both sides are in contact with the two sides of the radial rod (3). The opening and closing ring (2) is provided with multiple positioning holes (8), and the sleeve (5) is provided with positioning pins (9) that cooperate with the positioning holes (8).

2. The convenient opening and closing device for a valve handwheel according to claim 1, characterized in that: The end of the locking post (7) is provided with a circular plate (10), which is in contact with the side of the radial rod (3).

3. The convenient opening and closing device for a valve handwheel according to claim 1, characterized in that: The locking pin (7) is threadedly connected to the locking tooth (6), and the end of the locking pin (7) passes through the locking tooth (6) and contacts the side of the radial rod (3).

4. The convenient opening and closing device for a valve handwheel according to claim 1, characterized in that: The positioning pin (9) passes through the side wall of the sleeve (5) and is threaded into the positioning hole (8).

5. The convenient opening and closing device for a valve handwheel according to claim 4, characterized in that: The positioning hole (8) is provided with a reinforcing sleeve (11), and the positioning post (9) is threaded into the inside of the reinforcing sleeve (11) after penetrating the side wall of the sleeve (5).

6. The convenient opening and closing device for a valve handwheel according to claim 1, characterized in that: The positioning holes (8) are arranged in a circular array on the starting and closing loop (2), and the array pitch angle of the positioning holes (8) is 12 degrees or an integer multiple of 12 degrees.

7. The convenient opening and closing device for a valve handwheel according to claim 1, characterized in that: One end of the push rod (4) is provided with a handle (12), and the handle (12) is provided with anti-slip protrusions (13).

Images