Rotary clamping type gate valve

Abstract

The utility model relates to the field of gate valves, and discloses a rotary clamping type gate valve which comprises a machine frame, clamping assemblies are arranged on the front side and the rear side of the machine frame, a power assembly is arranged between the two clamping assemblies, a valve plate is movably connected to the middle of the machine frame, and each clamping assembly comprises a shell. A vertical plate is fixedly connected to the top of the shell, a control ring is rotatably connected to the interior of the shell, a connecting ring is arranged in the control ring, a sealing ring is fixedly connected to the side, close to the valve plate, of the connecting ring, and a connecting opening is formed in the top of the shell. According to the utility model, the rack is matched with the clamping assembly, the power assembly and the valve plate, and the shell, the vertical plate, the control ring, the connecting ring and the sealing ring are matched with one another, so that the structure of the clamping assembly of the device is simpler, and the later overhaul and maintenance of the device are more time-saving, more convenient and more practical.

Description

Technical Field

[0001] The utility model relates to the field of gate valves, in particular to a rotary clamping gate valve. Background Art

[0002] A gate valve is a valve used to control the flow of fluids, commonly found in industrial piping systems. Its main function is to open or close the fluid in the pipeline, allowing the fluid to flow smoothly or stop flowing. The structure of a gate valve usually includes a sliding gate. When the gate is in the open position, the fluid can pass through; when the gate is moved to the closed position, the fluid flow is blocked.

[0003] After searching, Chinese patent announcement number: CN220470666U discloses a chain-type gate valve, including a gate valve body, a gate movably connected to the gate valve body, and a clamping drive mechanism fixedly arranged on the gate valve body; the gate valve body includes a frame, a left valve box and a right valve box arranged on the frame, and a middle valve box located between the left valve box and the right valve box and connected to the right valve box through a compensator, wherein the right valve box is movably connected to multiple groups of clamping mechanisms arranged symmetrically in a circle and connected to the clamping drive mechanism and the middle valve box at intervals and driven by the clamping drive mechanism to drive the middle valve box to clamp and release the gate, and the adjacent two groups of clamping mechanisms are driven by a chain and a clamping mechanism for clamping the chain is arranged on the outer side of the adjacent two groups of clamping mechanisms. The utility model can realize that the gate of a large-diameter gate valve can be easily opened.

[0004] Although the above device uses the clamping mechanism to move the middle valve box left and right between the left valve box and the right valve box to clamp and loosen the plug plate, the clamping mechanism adopts chain drive, which can make the screw realize multiple rotations, increase the loosening distance between the plug plate valve body and the plug plate, prevent interference when the plate is moving, and realize that the plug plate of the large-diameter plug plate valve can be easily opened, and the plug plate can also be clamped at the same time, but the device needs multiple sets of clamping mechanisms and clamping mechanisms to cooperate with each other to operate when in use, and the clamping assembly and the clamping mechanism need multiple components to cooperate with each other to operate, which makes the device structure very complicated, and the later inspection and maintenance need to spend a lot of time, which is not practical. Therefore, a rotary clamping type plug plate valve is proposed to solve the above problems. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides a rotary clamping type gate valve, which aims to improve the problem that the device in the prior art requires multiple sets of clamping mechanisms and multiple sets of pressing mechanisms to cooperate with each other to operate when in use, and the clamping components and the pressing mechanisms require multiple components to cooperate with each other to operate, which leads to a very complicated device structure, and subsequent inspection and maintenance require a lot of time, and it is not convenient to use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a rotary clamping type gate valve, comprising a frame, the front and rear sides of the frame are provided with clamping assemblies, a power assembly is commonly provided between the two clamping assemblies, a valve plate is movably connected to the middle part of the frame, and the clamping assembly includes a shell.

[0007] As a further description of the above technical solution:

[0008] The top of the shell is fixedly connected with a vertical plate, the interior of the shell is rotatably connected with a control ring, and the interior of the control ring is provided with a connecting ring.

[0009] As a further description of the above technical solution:

[0010] A sealing ring is fixedly connected to one side of the connecting ring close to the valve plate.

[0011] As a further description of the above technical solution:

[0012] A connecting port is provided on the top of the shell, and a plurality of connecting rods are fixedly connected to a side of the inner wall of the shell away from the valve plate.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the control ring is fixedly connected with a plurality of convex teeth, and the inner wall of the control ring is provided with a plurality of control grooves.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the connecting ring is fixedly connected with a plurality of protrusions, the protrusions are slidably connected with the control grooves, a connecting groove is provided on the rear side of the connecting ring, and the connecting rod is movably connected with the connecting groove.

[0017] As a further description of the above technical solution:

[0018] The middle parts of the front and rear sides of the frame are both provided with mounting grooves, and the shell is movably connected with the mounting grooves.

[0019] As a further description of the above technical solution:

[0020] The power assembly includes a motor, which is fixedly connected to the front side of the vertical plate located at the front. The output end of the motor is fixedly connected to a rotating shaft, which passes through the vertical plate and the frame and is rotatably connected thereto. The front and rear parts of the outer wall of the rotating shaft are fixedly connected to gears.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting the mutual cooperation between the frame and the clamping assembly, the power assembly and the valve plate, and by the mutual cooperation between the shell, the vertical plate, the control ring, the connecting ring and the sealing ring, the structure of the clamping assembly of the device is made simpler, and the later inspection and maintenance of the device are made more time-saving, convenient and practical.

[0023] 2. In the utility model, by setting the mutual cooperation between the two clamping components and the power component, and by the mutual cooperation between the connecting ring, the sealing ring and the valve plate, the device can clamp the raft plate through the sealing ring to improve the sealing of the overall plug valve, so that the transported fluid is not easy to leak, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall three-dimensional schematic diagram of a rotary clamping type gate valve proposed by the utility model;

[0025] Figure 2 This is a disassembled three-dimensional schematic diagram of a rotary clamping type gate valve proposed by the utility model;

[0026] Figure 3 This is a disassembled three-dimensional schematic diagram of a clamping assembly of a rotary clamping type gate valve proposed by the utility model;

[0027] Figure 4 The utility model is a three-dimensional schematic diagram of the rear side of the shell of a rotary clamping type gate valve.

[0028] Legend:

[0029] 1. Frame; 2. Clamping assembly; 3. Power assembly; 4. Valve plate; 21. Housing; 22. Vertical plate; 23. Control ring; 24. Connecting ring; 25. Sealing ring; 211. Connecting port; 212. Connecting rod; 231. Control groove; 232. Protruding tooth; 241. Bump; 242. Connecting groove; 11. Mounting groove; 31. Motor; 32. Rotating shaft; 33. Gear. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1, the utility model provides an embodiment: a rotary clamping type plug valve, including a frame 1, which is used to connect various components, and a device for controlling the movement of a valve plate 4 is arranged inside the frame 1. Clamping assemblies 2 are arranged on the front and rear sides of the frame 1. The two clamping assemblies 2 are symmetrically arranged for loosening or clamping the valve plate 4, which can prevent interference when the plate is moved and enhance the overall sealing of the valve body. The middle parts of the front and rear sides of the frame 1 are provided with mounting grooves 11 for matching the installation of a shell 21, and the shell 21 is movably connected thereto, and is fixed to the mounting groove 11 by bolts. A power assembly 3 is commonly arranged between the two clamping assemblies 2 for controlling the clamping and loosening between the two clamping assemblies 2 and the valve plate 4. The middle part of the frame 1 is movably connected with the valve plate 4 for controlling the flow of the fluid, and an opening is opened on one side thereof for matching the flow of the fluid.

[0032] like Figure 2 - Figure 4 As shown, the clamping assembly 2 includes a shell 21 for connecting various components. A vertical plate 22 is fixedly connected to the top of the shell 21 for cooperating with the installation of the power assembly 3. A control ring 23 is rotatably connected inside the shell 21 for controlling the movement of a connecting ring 24. A connecting ring 24 is arranged inside the control ring 23 for driving a sealing ring 25 to clamp or loosen the valve plate 4. A sealing ring 25 is fixedly connected to the side of the connecting ring 24 close to the valve plate 4. The sealing ring 25 is made of rubber to improve the sealing performance of the valve body. The inner wall diameter is consistent with the opening diameter of the valve plate 4.

[0033] Furthermore, a connection port 211 is provided at the top of the housing 21 for engaging with the convex teeth 232 on the outer wall of the control ring 23. A connecting rod 212 is fixedly connected to the inner wall of the housing 21 away from the valve plate 4 on the side thereof, and the connecting rod 212 is provided in plurality for coordinating the moving direction of the control connecting ring 24. The outer wall of the control ring 23 is fixedly connected with convex teeth 232 in plurality for connecting the control ring 23 with the gear 33. The inner wall of the control ring 23 is provided with control grooves 231 in plurality for controlling the movement of the control ring 24. When the ring 23 rotates, the connecting ring 24 is driven to move forward or backward through the protrusion 241. The outer wall of the connecting ring 24 is fixedly connected with a plurality of protrusions 241, which are used to connect with the control groove 231 to cooperate with the control groove 231 to drive the connecting ring 24 to move. The protrusion 241 is slidably connected to the control groove 231. A connecting groove 242 is provided on the rear side of the connecting ring 24 for connecting with the connecting rod 212 to cooperate with the control of the connecting ring 24 so that it can only move forward and backward. The connecting rod 212 is movably connected to the connecting groove 242.

[0034] Furthermore, the power assembly 3 includes a motor 31 for providing power for the assembly, which can rotate forward and reversely. The motor 31 is fixedly connected to the front side of the vertical plate 22 located at the front. The output end of the motor 31 is fixedly connected to a rotating shaft 32 for connecting various components. The rotating shaft 32 passes through the vertical plate 22 and the frame 1 and is rotatably connected thereto. The front and rear parts of the outer wall of the rotating shaft 32 are fixedly connected with gears 33, which are engaged with the control ring 23 and are used to drive the control ring 23 to rotate.

[0035] Working principle: When in use, when the valve is closed and the valve plate 4 needs to be clamped, the motor 31 is turned on, and the motor 31 will drive the rotating shaft 32 to rotate, and the gear 33 connected to the rotating shaft 32 will be driven to rotate accordingly, and the control ring 23 meshing with the gear 33 through the convex tooth 232 will be driven by the gear 33 to rotate in the housing 21. When the control ring 23 rotates, the position of the control groove 231 on its inner wall will change. At this time, the protrusion 241 connected to the control groove 231 will slide along the shape of the control groove 231, and the multiple protrusions 241 will drive the connecting ring 24 to move. Since the connecting ring 24 is connected to the connecting rod 212 through the connecting groove 242, the connecting rod 212 will move the connecting ring 24. The direction is restricted, so that the connecting ring 24 will move toward the valve plate 4, so that the sealing ring 25 clamps the valve plate 4, and then the motor 31 is turned off. When the valve 4 needs to be opened, the motor 31 is turned on to drive the rotating shaft 32 to reverse, so that the control ring 23 is reversed, and the protrusion 241 moves along the shape of the control groove 231 again, thereby driving the connecting ring 24 and the sealing ring 25 to move toward the housing 21 to release the valve plate 4, and then the valve plate 4 is controlled to move through the frame 1, so that the opening on the valve plate 4 comes to the middle of the body, so that the fluid can flow normally, and then the motor 31 is turned on again, and the forward rotation is made to repeat the above-mentioned clamping operation, driving the sealing ring 25 to press against the edge of the opening on the valve plate, thereby improving the sealing of the valve body during fluid transportation.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary clamping type gate valve, comprising a frame (1), characterized in that: The front and rear sides of the frame (1) are both provided with clamping assemblies (2), a power assembly (3) is commonly provided between the two clamping assemblies (2), a valve plate (4) is movably connected to the middle of the frame (1), and the clamping assembly (2) includes a housing (21).

2. The rotary clamping gate valve according to claim 1, characterized in that: The top of the outer shell (21) is fixedly connected to a vertical plate (22), the interior of the outer shell (21) is rotatably connected to a control ring (23), and a connecting ring (24) is arranged inside the control ring (23).

3. The rotary clamping gate valve according to claim 2, characterized in that: A sealing ring (25) is fixedly connected to one side of the connecting ring (24) close to the valve plate (4).

4. The rotary clamping gate valve according to claim 2, characterized in that: A connection port (211) is provided at the top of the shell (21), and a plurality of connection rods (212) are fixedly connected to a side of the inner wall of the shell (21) away from the valve plate (4).

5. The rotary clamping gate valve according to claim 4, characterized in that: The outer wall of the control ring (23) is fixedly connected with a plurality of convex teeth (232), and the inner wall of the control ring (23) is provided with a plurality of control grooves (231).

6. The rotary clamping gate valve according to claim 5, characterized in that: The outer wall of the connecting ring (24) is fixedly connected with a plurality of protrusions (241), the protrusions (241) are slidably connected to the control groove (231), a connecting groove (242) is provided on the rear side of the connecting ring (24), and the connecting rod (212) is movably connected to the connecting groove (242).

7. The rotary clamping gate valve according to claim 1, characterized in that: The middle parts of the front and rear sides of the frame (1) are both provided with mounting grooves (11), and the housing (21) is movably connected thereto.

8. The rotary clamping gate valve according to claim 2, characterized in that: The power assembly (3) comprises a motor (31), the motor (31) being fixedly connected to the front side of the vertical plate (22) located at the front, the output end of the motor (31) being fixedly connected to a rotating shaft (32), the rotating shaft (32) passing through the vertical plate (22) and the frame (1) and being rotatably connected thereto, and the front and rear parts of the outer wall of the rotating shaft (32) being fixedly connected to gears (33).

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