A soft seal gate valve with a gate convenient to replace

Abstract

The utility model relates to the technical field of gate valve, put forward a kind of soft sealing gate valve of convenient replacement of gate, including flow guide box, the hollow plate is fixed in the flow guide box top surface, the hollow plate is through with flow guide box inside, the rectangular plate is movably inserted in the upper end inside of hollow plate, the middle part of rectangular plate is equipped with through -hole, the second moving groove is equipped in the through -hole inner wall, the lifting rod is movably inserted in the through -hole inside, the lifting rod is passed through through -hole, the threaded column is fixed in the lower end of lifting rod, the threaded column outside is connected with gate with screw thread, the gate is located in flow guide box inside, the elastic sleeve is fixed in the gate outside. The utility model through with rectangular plate moves out hollow plate inside, can take out gate, to separate gate and lifting rod, complete the disassembly replacement of gate, simple and quick operation can improve the speed of replacement of gate, the work of convenient maintenance personnel, prolong the service life of soft sealing gate valve whole.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, specifically a soft-seal gate valve that facilitates gate plate replacement. Background Technology

[0002] A soft-seal gate valve is an industrial valve. The opening and closing element of a soft-seal gate valve is a gate. The direction of movement of the gate is perpendicular to the direction of fluid flow. Gate valves can only be fully open or fully closed, and cannot be used for regulation or throttling.

[0003] Currently, when a soft-seal gate valve is in use, the gate is continuously impacted by the fluid when it closes to cut off the flow. Over time, this can cause the gate to wear out, affecting the sealing effect. However, replacing the gate of a soft-seal gate valve is very troublesome, often requiring the disassembly of the entire valve body, which increases time costs and the workload of maintenance personnel.

[0004] Therefore, a soft-seal gate valve that allows for easy disassembly and replacement of the gate is needed. Utility Model Content

[0005] To address the aforementioned issues, this invention proposes a soft-seal gate valve with an easily replaceable gate plate, enabling simple disassembly and replacement of the gate plate, thereby reducing the workload of maintenance personnel and extending the service life of the soft-seal gate valve.

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

[0007] A soft-seal gate valve with easy gate replacement includes a flow guide box. A hollow plate is fixed to the top surface of the flow guide box, and the hollow plate communicates with the inner side of the flow guide box. A rectangular plate is movably inserted into the inner side of the upper end of the hollow plate. A through hole is provided in the middle of the rectangular plate, and a second movable groove is provided on the inner wall of the through hole. A lifting rod is movably inserted into the inner side of the through hole, and the lifting rod passes through the through hole. A threaded post is fixed to the lower end of the lifting rod, and a gate plate is threadedly connected to the outer side of the threaded post. The gate plate is located inside the flow guide box, and an elastic sleeve is fixed to the outer side of the gate plate. The sleeve fits tightly against the inner wall of the flow guide box, and the elastic sleeve fits tightly against the inner wall of the hollow plate. The upper outer wall of the lifting rod is provided with a first limiting groove, which is connected to the second moving groove. The lower outer wall of the lifting rod is provided with a second limiting groove. The upper outer wall of the hollow plate is provided with a first moving groove, which is connected to the second moving groove. A limiting plate is movably inserted into the inner side of the first moving groove. The limiting plate passes through the first moving groove and the second moving groove. One end of the limiting plate is movably inserted into the inner side of the first limiting groove.

[0008] As a preferred technical solution of the soft-seal gate valve of this utility model that facilitates gate plate replacement, a first guide pipe is fixed on one outer wall of the guide box, and the first guide pipe communicates with the inner side of the guide box. A second guide pipe is fixed on the other outer wall of the guide box, and the second guide pipe communicates with the inner side of the guide box.

[0009] As a preferred technical solution of the soft-seal gate valve of the present invention, which facilitates the replacement of the gate plate, a first threaded groove is provided in the middle of one side wall of the rectangular plate, and a threaded rod is threadedly connected to the inner side of the first threaded groove. A connecting hole is provided on the outer wall of the other side of the upper end of the hollow plate, and the connecting hole communicates with the inner side of the hollow plate. The threaded rod passes through the connecting hole.

[0010] As a preferred technical solution of the soft-seal gate valve of this utility model that facilitates the replacement of the gate plate, a connecting block is fixed to the other end of the limiting plate, a spring is fixed to one side wall of the lower end of the connecting block, and one end of the spring is fixed to the outer wall of the hollow plate.

[0011] As a preferred technical solution of the soft-seal gate valve of the present invention, which facilitates the replacement of the gate plate, a locking block is fixed on the other side wall of the lower end of the connecting block, a second locking hole is provided in the middle of the locking block, a locking plate is fixed on the outer wall of one side of the hollow plate, the locking plate is located below the locking block, and a first locking hole is provided on the side of the locking plate.

[0012] As a preferred technical solution of the soft-seal gate valve of the present invention, which facilitates the replacement of the gate plate, the gate plate has a second threaded groove in the middle of the top surface, and the threaded column is threadedly connected to the inner side of the second threaded groove.

[0013] As a preferred technical solution of the soft-seal gate valve of this utility model that facilitates gate plate replacement, the elastic sleeve has a notch in the middle of the top surface, and the notch is located on the outside of the lifting rod.

[0014] As a preferred technical solution of the soft-seal gate valve of the present invention, which facilitates the replacement of the gate plate, the upper inner wall of the hollow plate is symmetrically fixed with baffles, and the baffles are located below the rectangular plate.

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

[0016] The rectangular plate of this invention is movably inserted into the inner side of the hollow plate on the top surface of the flow guide box. A baffle supports the rectangular plate from below. A threaded rod passes through the connecting hole and is threaded into the inner side of the first threaded groove to fix the rectangular plate. A limiting plate is movably inserted into the inner side of the first limiting groove. By unscrewing the threaded rod out of the inner side of the first threaded groove and moving the limiting plate out of the inner side of the first limiting groove, the gate plate can be moved up by lifting the lifting rod. After the gate plate moves out of the inner side of the hollow plate, the rectangular plate is also taken out, thus completing the gate plate removal operation. Then, by rotating the lifting rod, the threaded column is rotated out of the inner side of the second threaded groove, thus separating the gate plate from the lifting rod, completing the disassembly and replacement of the gate plate. This achieves quick disassembly and replacement of the gate plate, improving the work efficiency of maintenance workers.

[0017] This invention uses the lifting and lowering movement of a lifting rod to drive the gate for opening and closing operations. When the lifting rod moves the gate completely upward into the hollow plate, and the limiting plate is inserted into the second limiting groove under the action of a spring, the gate will not block the passage of fluid in the guide box. When the lifting rod moves the gate downward, the elastic sleeve on the outside of the gate contacts the bottom surface of the inner side of the guide box. After the limiting plate is inserted into the first limiting groove, the gate can prevent the passage of fluid in the guide box. Furthermore, a first locking hole is provided on the edge of the locking plate on the outer wall of the hollow plate, and a second locking hole is provided in the middle of the locking block on the side wall of the connecting block at the end of the limiting plate. By using a lock to pass through the first and second locking holes, the limiting plate can be restricted from moving out of the second or first limiting groove. Thus, after the gate is opened or closed, it effectively prevents others from accidentally touching or deliberately operating the gate, thereby enhancing security. 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 utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 This utility model Figure 2 Enlarged diagram of point C in the middle.

[0024] In the diagram: 1. Flow guide box; 11. First flow guide pipe; 12. Second flow guide pipe; 13. Hollow plate; 131. Locking plate; 132. First locking hole; 133. Connecting hole; 134. Baffle; 135. First moving groove; 14. Limiting plate; 141. Connecting block; 142. Locking block; 143. Second locking hole; 144. Spring; 2. Rectangular plate; 21. First threaded groove; 211. Threaded rod; 22. Through hole; 221. Second moving groove; 3. Lifting rod; 31. First limiting groove; 32. Second limiting groove; 33. Threaded column; 4. Gate plate; 41. Elastic sleeve; 411. Notch; 42. Second threaded groove. Detailed Implementation

[0025] 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

[0026] Please see Figure 1-5 As shown, this utility model provides the following technical solution: a soft-seal gate valve with easy gate replacement, including a flow guide box 1, a first flow guide pipe 11 fixed on one outer wall of the flow guide box 1, the first flow guide pipe 11 communicating with the inner side of the flow guide box 1, a second flow guide pipe 12 fixed on the other outer wall of the flow guide box 1, the second flow guide pipe 12 communicating with the inner side of the flow guide box 1, the first flow guide pipe 11 and the second flow guide pipe 12 are respectively connected to a fluid conveying pipeline, and the inner side of the flow guide box 1 is sealed by a gate 4 to realize the function of a gate valve and prevent fluid flow.

[0027] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, specifically, a hollow plate 13 is fixed to the top surface of the flow guide box 1 for connecting the rectangular plate 2. The hollow plate 13 is connected to the inner side of the flow guide box 1. The rectangular plate 2 is movably inserted into the inner side of the upper end of the hollow plate 13 to close the upper end of the hollow plate 13. A first threaded groove 21 is provided in the middle of one side wall of the rectangular plate 2 for connecting the threaded rod 211. The threaded rod 211 is threadedly connected to the inner side of the first threaded groove 21 to fix the rectangular plate 2. A connecting hole 133 is provided on the outer wall of the other side of the upper end of the hollow plate 13 for connecting the rectangular plate 2. A threaded rod 211 is inserted, and the connecting hole 133 is connected to the inner side of the hollow plate 13. The threaded rod 211 passes through the connecting hole 133. A baffle 134 is symmetrically fixed on the inner wall of the upper end of the hollow plate 13. The baffle 134 is located below the rectangular plate 2 and blocks and supports the rectangular plate 2. This solution releases the fixation of the rectangular plate 2 by unscrewing the threaded rod 211 out of the inner side of the first threaded groove 21, so that the rectangular plate 2 can be moved out of the inner side of the hollow plate 13, thereby realizing the disassembly of the gate 4. The operation is simple and the disassembly is quick. Example 2

[0028] In another embodiment of this solution, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, specifically, the rectangular plate 2 has a through hole 22 in the middle for connecting and moving the lifting rod 3. The inner wall of the through hole 22 has a second moving groove 221 for moving the limiting plate 14. The lifting rod 3 is movably inserted into the inner side of the through hole 22, which can drive the gate plate 4 to move up and down. The lifting rod 3 passes through the through hole 22. The upper outer wall of the lifting rod 3 has a first limiting groove 31, which communicates with the second moving groove 221. The lower outer wall of the lifting rod 3 has a second limiting groove 32. The first limiting groove 31 and the second limiting groove 32 are both used to limit the lifting rod 3. The outer wall of one side of the upper end of the hollow plate 13 is provided with a first moving groove 135, which provides a moving channel for the limiting plate 14. The first moving groove 135 and the second moving groove 221 are connected. The limiting plate 14 is movably inserted into the inner side of the first moving groove 135 to limit the lifting rod 3. The limiting plate 14 passes through the first moving groove 135 and the second moving groove 221. One end of the limiting plate 14... The limit plate 14 is movably inserted into the inner side of the first limiting groove 31. A connecting block 141 is fixed to the other end of the limiting plate 14, allowing the limiting plate 14 to move by pulling it. A spring 144 is fixed to one side wall of the lower end of the connecting block 141. One end of the spring 144 is fixed to the outer wall of the hollow plate 13. The elastic tension of the spring 144 can pull the limiting plate 14 to move. In this scheme, the opening and closing operation of the gate 4 is achieved by the lifting rod 3 driving the gate 4 to move up and down. When the gate 4 moves against the inner side of the guide box 1... After sealing, the limiting plate 14 is inserted into the inner side of the first limiting groove 31 under the pulling force of the spring 144. When the gate 4 is opened and moves upward and retracts into the inner side of the hollow plate 13, the limiting plate 14 is inserted into the inner side of the second limiting groove 32 under the pulling force of the spring 144. The gate 4 is also moved upward by the lifting rod 3. The gate 4 can also be moved directly upward and removed from the inner side of the hollow plate 13, so that the gate 4 can be removed for replacement. This realizes the operation of quick disassembly and replacement, which facilitates the work of maintenance personnel. Example 3

[0029] In another embodiment of this solution, refer to Figure 1 , Figure 2 and Figure 5As shown, specifically, a threaded post 33 is fixed to the lower end of the lifting rod 3 for connecting the gate plate 4. The gate plate 4 is threadedly connected to the outside of the threaded post 33. The gate plate 4 is located inside the flow guide box 1. An elastic sleeve 41 is fixed to the outside of the gate plate 4. The elastic sleeve 41 can tightly fit with the inner wall of the flow guide box 1 and the hollow plate 13 through elastic deformation to achieve a sealing operation. The elastic sleeve 41 is tightly fitted with the inner wall of the flow guide box 1 and the inner wall of the hollow plate 13. A second threaded groove 42 is provided in the middle of the top surface of the gate plate 4 for connecting the threaded post 33. The threaded column 33 is threaded to the inner side of the second threaded groove 42. The elastic sleeve 41 has a notch 411 in the middle of its top surface. The notch 411 is located on the outer side of the lifting rod 3, so that the threaded column 33 can pass through the notch 411 and connect to the inner side of the second threaded groove 42. In this solution, by rotating the lifting rod 3, the threaded column 33 can be rotated, so that the threaded column 33 moves out of the inner side of the second threaded groove 42, thereby realizing the separation of the gate plate 4 and the lifting rod 3. The threaded connection method is convenient for disassembly and assembly, facilitates the replacement of the gate plate 4, and helps to extend the overall service life of the soft-seal gate valve. Example 4

[0030] In another embodiment of this solution, refer to Figure 1 , Figure 2 and Figure 4 As shown, specifically, a locking block 142 is fixed to the other side wall of the lower end of the connecting block 141 for limiting the position of the limiting plate 14. The locking block 142 has a second locking hole 143 in the middle for connecting a lock. A locking plate 131 is fixed to one side of the outer wall of the hollow plate 13, which works with the locking block 142 to limit the position of the limiting plate 14. The locking plate 131 is located below the locking block 142. The locking plate 131 has a first locking hole 132 on its side, which is also used to connect a lock. This solution allows the lock to pass through the first locking hole 132 and the second locking hole 143 to lock, thereby limiting the position of the limiting plate 14 and preventing others from accidentally touching or deliberately operating the limiting plate 14, thus preventing the gate 4 from being opened or closed accidentally and enhancing security.

[0031] The working principle and usage process of this utility model:

[0032] In use, the lifting rod 3 is moved upward, causing the gate plate 4 to move upward and fully enter the inner side of the hollow plate 13. Under the pulling force of the spring 144, the limiting plate 14 is inserted into the inner side of the second limiting groove 32 to fix the gate plate 4 and complete the opening of the gate plate 4. By pulling the connecting block 141, the spring 144 is stretched, and the limiting plate 14 moves out of the inner side of the second limiting groove 32. Then, the lifting rod 3 is pressed down to make the gate plate 4 move downward. After the elastic sleeve 41 contacts the bottom surface of the flow guide box 1, the pulling force of the spring 144 pulls the limiting plate 14 to insert into the inner side of the first limiting groove 31, completing the closing of the gate plate 4 and preventing the fluid inside the flow guide box 1 from passing through. After the gate plate 4 is opened or closed, a lock (the lock is a common existing technology, such as a padlock) is used to lock it through the first lock hole 132 and the second lock hole 143 to limit and fix the limiting plate 14, thereby preventing the gate plate 4 from moving accidentally.

[0033] When replacing the gate plate 4, unscrew the threaded rod 211 out of the inner side of the first threaded groove 21, then pull the connecting block 141 to move the limiting plate 14 out of the inner side of the first limiting groove 31 or the second limiting groove 32. Then lift the lifting rod 3, so that the lifting rod 3 drives the gate plate 4 to move up and out of the inner side of the hollow plate 13, and push the rectangular plate 2 out from the inner side of the hollow plate 13. Then the gate plate 4 can be removed. Then rotate the lifting rod 3 to drive the threaded column 33 out of the inner side of the second threaded groove 42. This completes the disassembly of the gate plate 4 and facilitates the replacement of the gate plate 4.

[0034] 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 soft-seal gate valve with an easily replaceable gate, comprising a flow guide box (1), characterized in that: A hollow plate (13) is fixed on the top surface of the flow guide box (1). The hollow plate (13) is connected to the inner side of the flow guide box (1). A rectangular plate (2) is movably inserted into the inner side of the upper end of the hollow plate (13). A through hole (22) is provided in the middle of the rectangular plate (2). A second moving groove (221) is provided on the inner wall of the through hole (22). A lifting rod (3) is movably inserted into the inner side of the through hole (22). The lifting rod (3) passes through the through hole (22). A threaded column (33) is fixed at the lower end of the lifting rod (3). A gate plate (4) is threadedly connected to the outer side of the threaded column (33). The gate plate (4) is located inside the flow guide box (1). An elastic sleeve (41) is fixed to the outer side of the gate plate (4). The elastic sleeve (41) is tightly fitted to the inner wall of the flow guide box (1). The elastic sleeve (41) is tightly fitted to the inner wall of the hollow plate (13). The upper outer wall of the lifting rod (3) is provided with a first limiting groove (31), which is connected to the second moving groove (221). The lower outer wall of the lifting rod (3) is provided with a second limiting groove (32). The upper outer wall of the hollow plate (13) is provided with a first moving groove (135), which is connected to the second moving groove (221). A limiting plate (14) is movably inserted into the inner side of the first moving groove (135). The limiting plate (14) passes through the first moving groove (135) and the second moving groove (221). One end of the limiting plate (14) is movably inserted into the inner side of the first limiting groove (31).

2. The soft-seal gate valve with easy gate replacement according to claim 1, characterized in that: A first guide pipe (11) is fixed on one side of the outer wall of the guide box (1), and the first guide pipe (11) is connected to the inner side of the guide box (1). A second guide pipe (12) is fixed on the other side of the outer wall of the guide box (1), and the second guide pipe (12) is connected to the inner side of the guide box (1).

3. A soft-seal gate valve with an easily replaceable gate as described in claim 2, characterized in that: The rectangular plate (2) has a first threaded groove (21) in the middle of one side wall. A threaded rod (211) is threadedly connected to the inner side of the first threaded groove (21). A connecting hole (133) is provided on the outer wall of the other side of the upper end of the hollow plate (13). The connecting hole (133) is connected to the inner side of the hollow plate (13). The threaded rod (211) passes through the connecting hole (133).

4. A soft-seal gate valve with an easily replaceable gate as described in claim 3, characterized in that: The other end of the limiting plate (14) is fixed with a connecting block (141), and a spring (144) is fixed on one side wall of the lower end of the connecting block (141). One end of the spring (144) is fixed on the outer wall of the hollow plate (13).

5. A soft-seal gate valve with an easily replaceable gate as described in claim 4, characterized in that: A locking block (142) is fixed to the other side wall of the lower end of the connecting block (141). A second locking hole (143) is provided in the middle of the locking block (142). A locking plate (131) is fixed to the outer wall of one side of the hollow plate (13). The locking plate (131) is located below the locking block (142). A first locking hole (132) is provided on the side of the locking plate (131).

6. A soft-seal gate valve with an easily replaceable gate as described in claim 5, characterized in that: The gate (4) has a second threaded groove (42) in the middle of its top surface, and the threaded column (33) is threaded to the inside of the second threaded groove (42).

7. A soft-seal gate valve with an easily replaceable gate as described in claim 6, characterized in that: The elastic sleeve (41) has a notch (411) in the middle of its top surface, and the notch (411) is located on the outside of the lifting rod (3).

8. A soft-seal gate valve with an easily replaceable gate as described in claim 7, characterized in that: The hollow plate (13) has baffles (134) symmetrically fixed on the inner wall of the upper end, and the baffles (134) are located below the rectangular plate (2).

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