A gate valve opening and closing actuator

Abstract

This utility model relates to the field of gate valve technology and proposes a gate valve opening and closing actuator, including a guide tube. A hollow plate is fixed to the outer wall of the guide tube, and the hollow plate communicates with the inner side of the guide tube. A rotating hole is provided in the middle of the top surface of the hollow plate, and the rotating hole communicates with the inner side of the hollow plate. A threaded cylinder is movably inserted into the inner side of the rotating hole. A first toothed ring is fixedly sleeved on the upper outer wall of the threaded cylinder. A threaded post is threadedly connected to the inner side of the threaded cylinder, and a gate plate is fixed at the lower end of the threaded post. The gate plate is located inside the guide tube, and a fixing plate is fixed to the upper outer wall of the hollow plate. When the gear of this utility model meshes with the first toothed ring, the gate plate is opened and closed by a motor drive. When the second toothed ring meshes with the first toothed ring, the gate plate is opened and closed by manually rotating the second toothed ring. By moving the movable plate, the two opening and closing methods can be switched to cope with motor failure or power failure, thereby improving adaptability.

Description

Technical Field

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

[0002] A gate valve is a type of valve whose opening and closing element is a gate. Its core characteristic is that the gate moves perpendicular to the fluid direction, allowing for full opening or full closing of the fluid in the pipeline by raising and lowering the gate. It does not have regulating or throttling functions and is only suitable for situations where the fluid is completely cut off or allowed to flow freely.

[0003] Currently, when gate valves are opened or closed, their actuators can only be driven by electricity or manually. Manual operation is labor-intensive and inefficient, while automatic motor drive cannot open or close the gate valve if the motor malfunctions or there is a power outage, which has certain limitations.

[0004] Therefore, a gate valve opening and closing actuator that can accommodate both manual and automatic operation is needed. Utility Model Content

[0005] To address the aforementioned issues, this invention proposes a gate valve opening and closing actuator that can switch between manual and automatic operation with simple adjustments, thereby improving efficiency and enabling it to handle special situations such as motor failure or power outage.

[0006] To achieve the above objectives, the present invention proposes the following specific solutions:

[0007] A gate valve opening and closing actuator includes a guide tube, a hollow plate fixed to the outer wall of the guide tube, the hollow plate communicating with the inner side of the guide tube, a rotating hole in the center of the top surface of the hollow plate communicating with the inner side of the hollow plate, a threaded cylinder movably inserted into the inner side of the rotating hole, a first toothed ring fixedly sleeved on the upper outer wall of the threaded cylinder, a threaded post threadedly connected to the inner side of the threaded cylinder, a gate plate fixed to the lower end of the threaded post, the gate plate being located inside the guide tube, and a fixing plate fixed to the upper outer wall of the hollow plate. A movable plate is provided above the fixed plate. The movable plate has a rectangular notch in the middle. The first toothed ring is located above the rectangular notch. A support plate is fixed to the top edge of the movable plate. A connecting plate is fixed to the top of the support plate. A motor is fixed to the bottom surface of the connecting plate. A drive shaft is fixed to the middle of the bottom surface of the motor. A gear is fixed to the lower end of the drive shaft. The gear meshes with the first toothed ring. A fixed shaft is fixed to the top surface of the movable plate. A second toothed ring is movably sleeved on the outside of the fixed shaft. The second toothed ring is located on one side of the first toothed ring.

[0008] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, a rectangular plate is fixed in the middle of one side wall of the movable plate, a moving groove is provided on the side of the rectangular plate, a limit plate is movably inserted into the inner side of the moving groove, a lifting plate is fixed at the top of the limit plate, and a control frame is fixed at one end of the lifting plate.

[0009] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, the top surface of the fixed plate is provided with a first limiting groove, the lower end of the limiting plate is movably inserted into the inner side of the first limiting groove, and the top surface of the fixed plate is provided with a second limiting groove, the second limiting groove being located on one side of the first limiting groove.

[0010] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, a spring is fixed on the bottom surface of the lifting plate, the spring is located on one side of the limiting plate, and the lower end of the spring is fixed on the top surface of the rectangular plate.

[0011] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, the top surface of the fixed plate is symmetrically provided with an L-shaped plate, and the L-shaped plate is located outside the movable plate.

[0012] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, a support ring is fixedly sleeved on the outer wall of the threaded cylinder. The support ring is located below the first toothed ring and above the rotating hole. A limit ring is fixedly sleeved on the lower outer wall of the threaded cylinder and is located below the rotating hole.

[0013] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, a stop block is fixed at the top of the fixed shaft, the stop block is located above the second toothed ring, and a handle is fixed at the edge of the top surface of the second toothed ring.

[0014] As a preferred technical solution of the gate valve opening and closing actuator of this utility model, a sealing strip is fixed on the outer wall of the gate plate. The sealing strip is made of elastic material and is tightly fitted with the inner wall of the guide tube and the inner wall of the hollow plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model's guide tube is used to transport fluid. The gate at the lower end of the threaded column can seal the guide tube, thus preventing fluid flow. The rotation of the first toothed ring drives the threaded cylinder to rotate, which in turn drives the threaded column to move up or down, thereby controlling the opening and closing of the gate. When the first toothed ring meshes with the gear, the motor drives the gear to rotate, which controls the opening and closing of the gate. When the first toothed ring meshes with the second toothed ring, rotating the second toothed ring with a handle drives the first toothed ring to rotate, controlling the opening and closing of the gate. The movement of the movable plate can drive the gear and the second toothed ring to move, thus switching between the first toothed ring meshing with the gear or the first toothed ring meshing with the second toothed ring, achieving the purpose of switching between automatic and manual control. This combines the advantages of automatic and manual control, and can cope with emergencies such as motor failure and power outage, enhancing its practicality.

[0017] The movable plate of this invention is located above the fixed plate fixed to the outer wall of the hollow plate. An L-shaped plate symmetrically arranged on the top surface of the fixed plate is clamped on the outside of the movable plate, maintaining the stability of the movable plate. The movable plate can move on the top surface of the fixed plate to realize the switching of automatic or manual control of the gate. When the gate is automatically driven to open and close by the motor, the limiting plate is inserted into the inner side of the first limiting groove under the tension of the spring. When the gate is opened and closed by manually rotating the second toothed ring, the limiting plate is inserted into the inner side of the second limiting groove under the tension of the spring, thereby fixing the movable plate and improving the stability during the experiment. Attached Figure Description

[0018] To better describe the technical solution of this utility model in detail, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional view of the overall structure provided by this utility model;

[0020] Figure 2 This is a three-dimensional sectional view of the present invention;

[0021] Figure 3 This is a perspective view of the threaded cylinder of this utility model;

[0022] Figure 4 This is a perspective view of the threaded column of this utility model;

[0023] Figure 5 This is a perspective view of the movable plate of this utility model;

[0024] Figure 6 This utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 7 This utility model Figure 2 Enlarged view of point B in the middle;

[0026] Figure 8 This utility model Figure 2 Enlarged diagram of point C in the middle.

[0027] In the diagram: 1. Guide pipe; 11. Hollow plate; 111. Rotating hole; 12. Fixed plate; 121. L-shaped plate; 122. First limiting groove; 123. Second limiting groove; 13. Threaded cylinder; 131. First toothed ring; 132. Support ring; 133. Limiting ring; 14. Threaded column; 141. Gate plate; 142. Sealing strip; 2. Movable plate; 21. Rectangular notch; 22. Support plate; 221. Connecting plate; 222. Motor; 223. Drive shaft; 224. Gear; 23. Fixed shaft; 231. Stop block; 24. Second toothed ring; 241. Handle; 25. Rectangular plate; 251. Moving groove; 26. Limiting plate; 261. Lifting plate; 262. Control frame; 263. Spring. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0029] Please see Figure 1-8 As shown, the present invention provides the following technical solution: a gate valve opening and closing actuator, including a guide pipe 1, a hollow plate 11 fixed on the outer wall of the guide pipe 1, the hollow plate 11 communicating with the inner side of the guide pipe 1, and the hollow plate 11 being used to accommodate the gate plate 141 when it moves upward.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, specifically, a rotating hole 111 is provided in the middle of the top surface of the hollow plate 11 for connecting and rotating the threaded cylinder 13. The rotating hole 111 is connected to the inner side of the hollow plate 11, and the threaded cylinder 13 is movably inserted into the inner side of the rotating hole 111, which can drive the threaded column 14 to move up and down through rotation. A first toothed ring 131 is fixedly sleeved on the outer wall of the upper end of the threaded cylinder 13 for driving the threaded cylinder 13 to rotate. A support ring 132 is fixedly sleeved on the outer wall of the threaded cylinder 13 to support the threaded cylinder 13 and prevent it from moving downward. The support ring 132 is located below the first toothed ring 131 and above the rotating hole 111. A limit ring 133 is fixedly sleeved on the outer wall of the lower end of the threaded cylinder 13 to prevent the threaded cylinder 13 from moving upward. The limit ring 133 is located below the rotating hole 111. A threaded post 14 is threaded to the inner side of the threaded cylinder 13, which is used to drive the gate 141 to move up and down. The gate 141 is fixed at the lower end of the threaded post 14 to block the guide pipe 1. The gate 141 is located inside the guide pipe 1. A sealing strip 142 is fixed to the outer wall of the gate 141. The sealing strip 142 is made of elastic material and can fit tightly against the inner wall of the guide pipe 1 through deformation to enhance the sealing performance. The sealing strip 142 fits tightly against the inner wall of the guide pipe 1 and the inner wall of the hollow plate 11. This solution blocks the guide pipe 1 by the gate 141 to prevent the flow of fluid. By rotating the threaded cylinder 13, the threaded post 14 can be driven to rise or fall, thereby controlling the opening and closing of the gate 141. The structure is simple and stable and easy to use. Example 2

[0031] In another embodiment of this solution, refer to Figure 1 , Figure 2 , Figure 5 and Figure 6As shown, specifically, a fixed plate 12 is fixed to the upper outer wall of the hollow plate 11 to support the movable plate 2. The movable plate 2 is located above the fixed plate 12, driving the gear 224 and the second gear ring 24 to move. A rectangular notch 21 is provided in the middle of the movable plate 2, providing space for the threaded cylinder 13 and the first gear ring 131. The first gear ring 131 is located above the rectangular notch 21. A support plate 22 is fixed to the top edge of the movable plate 2 to support the connecting plate 221. A connecting plate 221 is fixed to the top of the support plate 22 for connecting and fixing the motor 222. The motor 222 is fixed to the bottom surface of the connecting plate 221 (the motor 222 is existing technology; the specific operation mode and principle can be referred to in the bidirectional electric motor of the existing technology). The motor (which is controlled by an external power source for opening and closing, so it is not described in detail here) has a transmission shaft 223 fixed in the middle of its bottom surface. This transmission shaft 223 drives the gear 224 to rotate. The gear 224 is fixed at the lower end of the transmission shaft 223. The gear 224 meshes with the first gear ring 131 and can drive the first gear ring 131 to rotate. In this invention, the motor 222 drives the transmission shaft 223 to rotate, the transmission shaft 223 drives the gear 224 to rotate, the gear 224 drives the first gear ring 131 to rotate, and the first gear ring 131 drives the threaded cylinder 13 to rotate. This controls the threaded column 14 to move the gate 141 up or down, thereby realizing the opening and closing of the gate 141. This invention can operate automatically, save manpower, and improve efficiency. Example 3

[0032] In another embodiment of this solution, refer to Figure 1 , Figure 2 , Figure 5 and Figure 7 As shown, specifically, a fixed shaft 23 is fixed on the top surface of the movable plate 2, which connects to the second toothed ring 24. The second toothed ring 24 is movably sleeved on the outside of the fixed shaft 23, which is used to drive the first toothed ring 131 to rotate. The second toothed ring 24 is located on one side of the first toothed ring 131. A handle 241 is fixed on the edge of the top surface of the second toothed ring 24 to facilitate the rotation of the second toothed ring 24. A stop block 231 is fixed at the top of the fixed shaft 23. The stop block 231 is located above the second toothed ring 24 to prevent the second toothed ring 24 from moving upward. In this solution, when the second toothed ring 24 is engaged with the first toothed ring 131, the first toothed ring 131 can be driven to rotate by rotating the second toothed ring 24 through the handle 241, thereby manually controlling the opening and closing of the gate 141. This allows the gate 141 to still be operated when the motor 222 fails or is powered off, improving practicality. Example 4

[0033] In another embodiment of this solution, refer to Figure 1 , Figure 2 , Figure 5 and Figure 8As shown, specifically, the top surface of the fixed plate 12 is symmetrically provided with an L-shaped plate 121, which is located outside the movable plate 2 and can maintain the stability of the movable plate 2. A rectangular plate 25 is fixed in the middle of one side wall of the movable plate 2 to support the limiting plate 26. The rectangular plate 25 has a moving groove 251 on its side for the limiting plate 26 to move. The limiting plate 26 is movably inserted into the moving groove 251 to limit the movable plate 2. A lifting plate 261 is fixed at the top of the limiting plate 26, which can drive the limiting plate 26 to move up and down. A control frame 262 is fixed at one end of the lifting plate 261 to control the movement of the lifting plate 261 and the movable plate 2. A spring 263 is fixed on the bottom surface of the lifting plate 261 to prevent the limiting plate 26 from moving upward by tension. The spring 263 is located on one side of the limiting plate 26, and the lower end of the spring 263 is fixed to the top surface of the rectangular plate 25. The top surface of the fixed plate 12 is provided with a first limiting groove 122. The lower end of the limiting plate 26 is movably inserted into the inner side of the first limiting groove 122 to fix the movable plate 2. The top surface of the fixed plate 12 is provided with a second limiting groove 123 for connecting the limiting plate 26 and fixing the movable plate 2. The second limiting groove 123 is located on one side of the first limiting groove 122. In this scheme, the lifting plate 261 can be moved upward by the control frame 262, which stretches the spring 263 and drives the limiting plate 26 to move upward and disengage from the inner side of the first limiting groove 122. Then, the movable plate 2 can be moved by the control frame 262, which drives the second toothed ring 24 to move and engage with the first toothed ring 131. This allows the gate 141 to be changed from being driven by the motor 222 to being manually controlled, thus facilitating the switching between automatic and manual modes to cope with emergencies and enhance adaptability.

[0034] The working principle and usage process of this utility model:

[0035] In normal use, the first gear ring 131 meshes with the gear 224, and the transmission shaft 223 is driven to rotate by the motor 222. The transmission shaft 223 drives the gear 224 to rotate, the gear 224 drives the first gear ring 131 to rotate, and the first gear ring 131 drives the threaded cylinder 13 to rotate. Since the threaded column 14 is threadedly connected to the inside of the threaded cylinder 13, the rotation of the threaded cylinder 13 can drive the threaded column 14 to rise or fall, thereby driving the gate 141 to rise or fall, realizing the opening and closing of the gate 141.

[0036] When motor 222 malfunctions or loses power, the lifting plate 261 is moved upward by grasping the control frame 262. The upward movement of the lifting plate 261 stretches the spring 263 and drives the limit plate 26 upward, causing the limit plate 26 to move out of the inner side of the first limit groove 122. Then, the movable plate 2 is moved by pulling the control frame 262, causing the second toothed ring 24 to move towards the first toothed ring 131. After the second toothed ring 24 engages with the first toothed ring 131, the control frame 262 is released. Under the action of the spring 263, the limit plate 26 moves downward and inserts into the inner side of the second limit groove 123, fixing the movable plate 2. Then, the second toothed ring 24 can be rotated by the handle 241, causing the second toothed ring 24 to drive the first toothed ring 131 to rotate, thereby controlling the gate 141 to rise or fall, realizing the opening and closing of the gate 141.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A gate valve opening and closing actuator, comprising a guide pipe (1), characterized in that: A hollow plate (11) is fixed to the outer wall of the guide tube (1). The hollow plate (11) is connected to the inner side of the guide tube (1). A rotating hole (111) is provided in the middle of the top surface of the hollow plate (11). The rotating hole (111) is connected to the inner side of the hollow plate (11). A threaded cylinder (13) is movably inserted into the inner side of the rotating hole (111). A first toothed ring (131) is fixedly sleeved on the outer wall of the upper end of the threaded cylinder (13). A threaded column (14) is threadedly connected to the inner side of the threaded cylinder (13). A gate plate (141) is fixed at the lower end of the threaded column (14). The gate plate (141) is located inside the guide tube (1). A fixing plate (12) is fixed to the outer wall of the upper end of the hollow plate (11). A movable plate (2) is provided above the fixing plate (12). The movable plate (2) has a rectangular notch (21) in the middle. The first toothed ring (131) is located above the rectangular notch (21). A support plate (22) is fixed on the top edge of the movable plate (2). A connecting plate (221) is fixed on the top of the support plate (22). A motor (222) is fixed on the bottom surface of the connecting plate (221). A transmission shaft (223) is fixed in the middle of the bottom surface of the motor (222). A gear (224) is fixed at the lower end of the transmission shaft (223). The gear (224) meshes with the first toothed ring (131). A fixed shaft (23) is fixed on the top surface of the movable plate (2). A second toothed ring (24) is movably sleeved on the outside of the fixed shaft (23). The second toothed ring (24) is located on one side of the first toothed ring (131).

2. The gate valve opening and closing actuator according to claim 1, characterized in that: A rectangular plate (25) is fixed in the middle of one side wall of the movable plate (2). A moving groove (251) is provided on the side of the rectangular plate (25). A limiting plate (26) is movably inserted into the inner side of the moving groove (251). A lifting plate (261) is fixed at the top of the limiting plate (26). A control frame (262) is fixed at one end of the lifting plate (261).

3. The gate valve opening and closing actuator according to claim 2, characterized in that: The top surface of the fixing plate (12) is provided with a first limiting groove (122), and the lower end of the limiting plate (26) is movably inserted into the inner side of the first limiting groove (122). The top surface of the fixing plate (12) is provided with a second limiting groove (123), and the second limiting groove (123) is located on one side of the first limiting groove (122).

4. The gate valve opening and closing actuator according to claim 3, characterized in that: A spring (263) is fixed to the bottom surface of the lifting plate (261). The spring (263) is located on one side of the limiting plate (26), and the lower end of the spring (263) is fixed to the top surface of the rectangular plate (25).

5. The gate valve opening and closing actuator according to claim 4, characterized in that: The fixed plate (12) is symmetrically provided with an L-shaped plate (121) on its top surface, and the L-shaped plate (121) is located outside the movable plate (2).

6. The gate valve opening and closing actuator according to claim 5, characterized in that: A support ring (132) is fixedly sleeved on the outer wall of the threaded cylinder (13). The support ring (132) is located below the first toothed ring (131) and above the rotating hole (111). A limit ring (133) is fixedly sleeved on the lower outer wall of the threaded cylinder (13). The limit ring (133) is located below the rotating hole (111).

7. The gate valve opening and closing actuator according to claim 6, characterized in that: A stop (231) is fixed at the top of the fixed shaft (23). The stop (231) is located above the second toothed ring (24). A handle (241) is fixed at the edge of the top surface of the second toothed ring (24).

8. The gate valve opening and closing actuator according to claim 7, characterized in that: A sealing strip (142) is fixed to the outer wall of the gate (141). The sealing strip (142) is made of elastic material. The sealing strip (142) is tightly attached to the inner wall of the guide pipe (1) and the sealing strip (142) is tightly attached to the inner wall of the hollow plate (11).

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