Knife-shaped gate valve with supporting structure

Abstract

The utility model provides a knife type gate valve with a supporting structure, which relates to the technical field of knife type gate valves and comprises a valve seat, a valve handle is rotatably mounted on the valve seat, a threaded rod is mounted on the valve handle in a threaded manner, a gate plate is rotatably mounted on the threaded rod, and a supporting mechanism is jointly arranged between the valve seat and the gate plate. The supporting frame and the supporting block are matched with each other to support the flashboard, when the flashboard is opened, the flashboard drives the supporting frame to move through the touch block, the supporting frame drives the supporting block to move through the fixing shell, the second spring and the telescopic block, and therefore the flashboard can be conveniently supported in the flashboard opening process, and stability is improved; the flashboard is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of knife gate valve technology, specifically a knife gate valve with a support structure. Background Technology

[0002] Knife gate valves are fluid control devices widely used in industries such as mining, wastewater treatment, papermaking, chemical and power. Their core structure is a gate with sharp edges, which cuts off or opens the flow of media through vertical lifting and lowering.

[0003] A search of Chinese patent CN218761513U reveals a knife gate valve, comprising a gate body, a valve, and a second flange. The valve is fixedly connected to the bottom of the gate body, and the second flange is located behind the valve. A cylinder is fixedly connected to the top of the gate body, and a control rod is fixedly connected to the output end of the cylinder. A knife gate is fixedly connected to the bottom end of the control rod. Baffles are fixedly connected to the front and rear sides of the bottom of the valve's inner cavity. This knife gate valve has a reasonable structural design, ensuring that even after prolonged use and strong liquid scouring, no gaps will form, thus maintaining the pipeline's sealing effect and promoting long-term pipeline use. Furthermore, during operation, impurities carried by the liquid in the pipeline can be filtered and intercepted, reducing the risk of particulate impurities damaging the delicate internal parts of the knife gate valve and lowering its operating costs.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. The gate is prone to deformation under long-term fluid impact, which leads to a decrease in the sealing function of the gate and makes it difficult to support the gate. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a knife gate valve with a support structure.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides a knife gate valve with a support structure, including a valve seat, a valve handle rotatably mounted on the valve seat, a threaded rod threadedly mounted on the valve handle, a gate plate rotatably mounted on the threaded rod, a support mechanism being provided between the valve seat and the gate plate, the support mechanism including an actuating block fixedly mounted on the gate plate, a first support assembly being provided on the valve seat, a support frame being provided on the first support assembly, and a second support assembly being provided on the support frame;

[0008] The valve seat is provided with a flow guiding mechanism, which includes a fixing component disposed on the valve seat and a fan blade disposed on the fixing component.

[0009] Furthermore, the first support assembly includes two side shells symmetrically fixedly mounted on the inner wall of the valve seat, and a first spring is connected to the inner wall of each side shell, with a slider slidably connected to the end of the first spring.

[0010] Furthermore, both sliders are fixed together to the support frame.

[0011] Furthermore, the second support assembly includes a fixed housing that is fixedly mounted on the support frame, and a second spring is connected to the inner wall of the fixed housing.

[0012] Furthermore, the end of the second spring is connected to a telescopic block that is slidably connected to the fixed shell, and a support block is fixedly installed on the telescopic block.

[0013] Furthermore, the fixing component includes an inner plate fixedly installed on the inner wall of the valve seat, and a circular block rotatably connected to the fan blade is fixedly installed on the inner plate.

[0014] The above-described solution of this utility model has at least the following beneficial effects:

[0015] 1. In this utility model, the gate is supported by the cooperation of the support frame and the support block. When the gate is opened, the gate moves the support frame through the touch block, and the support frame moves the support block through the fixed shell, the second spring and the telescopic block. This facilitates the support of the gate during the opening process, increases stability and prevents damage to the gate.

[0016] 2. In this utility model, during the fluid flow process inside the valve seat, the fluid can drive the fan blade to rotate around the circular block, thereby changing the fluid flow trajectory inside the valve seat. This reduces the deposition of impurities in the fluid in the gaps of the valve seat and prevents the seal between the gate and the valve seat from being affected. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a knife gate valve with a supporting structure according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the valve seat of a knife gate valve with a support structure according to the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the gate plate of a knife gate valve with a supporting structure according to the present invention.

[0020] Figure 4 This is an exploded structural diagram of the support frame of a knife gate valve with a support structure according to the present invention;

[0021] Figure 5 This is a schematic diagram of the exploded structure of the blade of a knife gate valve with a support structure according to the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Valve seat; 2. Valve handle; 3. Threaded rod; 4. Gate; 5. Actuating block; 6. Side shell; 7. First spring; 8. Sliding block; 9. Support frame; 10. Fixed shell; 11. Second spring; 12. Telescopic block; 13. Support block; 14. Inner plate; 15. Round block; 16. Fan blade. Detailed Implementation

[0024] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0025] like Figures 1 to 5 As shown, an embodiment of this utility model provides a knife gate valve with a support structure, including a valve seat 1, a valve handle 2 rotatably mounted on the valve seat 1, a threaded rod 3 threadedly mounted on the valve handle 2, and a gate plate 4 rotatably mounted on the threaded rod 3.

[0026] In this embodiment of the utility model, the operator rotates the valve handle 2, which in turn drives the threaded rod 3 to move using the threaded action. The threaded rod 3 then drives the gate plate 4 to move away from the gate hole of the valve seat 1, allowing the fluid to flow through the valve seat 1.

[0027] Figures 1 to 5 As shown, a support mechanism is provided between the valve seat 1 and the gate 4. The support mechanism includes an actuating block 5 fixedly installed on the gate 4. A first support assembly is provided on the valve seat 1. A support frame 9 is provided on the first support assembly. A second support assembly is provided on the support frame 9. The first support assembly includes two side shells 6 symmetrically fixedly installed on the inner wall of the valve seat 1. A first spring 7 is connected to the inner wall of each side shell 6. A slider 8 that is slidably connected to the side shell 6 is connected to the end of the first spring 7. The two sliders 8 are fixed together with the support frame 9. The second support assembly includes a fixed shell 10 fixedly installed on the support frame 9. A second spring 11 is connected to the inner wall of the fixed shell 10. A telescopic block 12 that is slidably connected to the fixed shell 10 is connected to the end of the second spring 11. A support block 13 is fixedly installed on the telescopic block 12.

[0028] In this embodiment of the utility model, the operator supports the gate plate 4 by the cooperation of the support frame 9 and the support block 13. When the gate plate 4 is opened, the gate plate 4 moves the support frame 9 through the touch block 5, so that the support frame 9 can move the slider 8 along the inner side of the side shell 6. The support frame 9 moves the support block 13 through the fixed shell 10, the second spring 11 and the telescopic block 12. When the support block 13 comes into contact with the valve seat 1, the support block 13 moves the telescopic block 12 into the inner side of the fixed shell 10, thereby facilitating the support of the gate plate 4 during the opening process, increasing stability and preventing damage to the gate plate 4.

[0029] When the gate 4 is closed, the first spring 7 can use its own elastic force to drive the support frame 9 to reset through the slider 8, and the second spring 11 can use its own elastic force to drive the support block 13 to reset through the telescopic block 12.

[0030] Figures 1 to 5 As shown, a flow guiding mechanism is provided on the valve seat 1. The flow guiding mechanism includes a fixing component provided on the valve seat 1. A fan blade 16 is provided on the fixing component. The fixing component includes an inner plate 14 fixedly installed on the inner wall of the valve seat 1. A round block 15 rotatably connected to the fan blade 16 is fixedly installed on the inner plate 14.

[0031] In this embodiment of the present invention, during the fluid flow process in the valve seat 1, the fluid can drive the fan blade 16 to rotate around the circular block 15, thereby changing the fluid flow trajectory in the valve seat 1 and reducing the deposition of impurities in the fluid in the gaps of the valve seat 1, thus preventing the seal between the gate 4 and the valve seat 1 from being affected.

[0032] Working principle: The operator rotates the valve handle 2, which drives the threaded rod 3 to move using the threaded action. The threaded rod 3 then drives the gate 4 to move away from the gate hole of the valve seat 1, allowing the fluid to flow through the valve seat 1.

[0033] The gate 4 is supported by the cooperation of the support frame 9 and the support block 13. When the gate 4 is opened, the gate 4 moves the support frame 9 through the touch block 5, and the support frame 9 moves the support block 13 through the fixed shell 10, the second spring 11 and the telescopic block 12, thus supporting the gate 4 during the opening process.

[0034] During the fluid flow process inside the valve seat 1, the fluid can drive the fan blade 16 to rotate around the circular block 15, thereby changing the fluid flow trajectory inside the valve seat 1 and reducing the deposition of impurities in the fluid in the gaps of the valve seat 1.

[0035] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A knife gate valve with a support structure, comprising a valve seat (1), a valve handle (2) rotatably mounted on the valve seat (1), a threaded rod (3) threadedly mounted on the valve handle (2), and a gate plate (4) rotatably mounted on the threaded rod (3), characterized in that: A support mechanism is provided between the valve seat (1) and the gate (4). The support mechanism includes an actuating block (5) fixedly installed on the gate (4). A first support component is provided on the valve seat (1). A support frame (9) is provided on the first support component. A second support component is provided on the support frame (9). The valve seat (1) is provided with a flow guiding mechanism, which includes a fixing component provided on the valve seat (1) and a fan blade (16) provided on the fixing component.

2. A knife gate valve with a support structure according to claim 1, characterized in that: The first support assembly includes two side shells (6) symmetrically fixedly installed on the inner wall of the valve seat (1). Each side shell (6) has a first spring (7) connected to its inner wall. The end of the first spring (7) is connected to a slider (8) that is slidably connected to the side shell (6).

3. A knife gate valve with a support structure according to claim 2, characterized in that: The two sliders (8) are fixed together with the support frame (9).

4. A knife gate valve with a support structure according to claim 3, characterized in that: The second support assembly includes a fixed shell (10) fixedly mounted on the support frame (9), and a second spring (11) is connected to the inner wall of the fixed shell (10).

5. A knife gate valve with a support structure according to claim 4, characterized in that: The end of the second spring (11) is connected to a telescopic block (12) that is slidably connected to the fixed shell (10), and a support block (13) is fixedly installed on the telescopic block (12).

6. A knife gate valve with a support structure according to claim 1, characterized in that: The fixing assembly includes an inner plate (14) fixedly installed on the inner wall of the valve seat (1), and a round block (15) rotatably connected to the fan blade (16) is fixedly installed on the inner plate (14).

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