Compression-resistant gate valve

Abstract

The utility model discloses a pressure-resistant gate valve, which comprises a gate valve main body, a control turntable and an anti-rotation mechanism, the control turntable is arranged at the top of the gate valve main body, the anti-rotation mechanism is arranged below the control turntable, the anti-rotation mechanism comprises a polyhedral lantern ring, a mounting block, an L-shaped rotating rod, a top block and a locking assembly, the polyhedral lantern ring is fixedly connected to the bottom of the control turntable, and the mounting block is fixedly connected to the bottom of the L-shaped rotating rod. The mounting block is fixedly connected to the front face of the gate valve body, the L-shaped rotating rod is rotationally connected to the front face of the mounting block, the ejector block is located between the L-shaped rotating rod and the multi-face lantern ring, the ejector block is fixedly connected to one side of the L-shaped rotating rod, and the locking assembly is arranged below the mounting block. The anti-rotation mechanism is arranged, the multi-face lantern ring, the mounting block, the L-shaped rotating rod, the ejector block and the locking assembly are matched to prevent the control rotating disc of the gate valve from rotating when the control rotating disc does not rotate, and accurate control over the running state of the gate valve is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gate valve technology, and in particular to a pressure-resistant gate valve. Background Technology

[0002] Gate valves are important fluid control devices. Their main function is to open or close the flow of media in pipelines. The core component of a gate valve is the gate, which opens or closes the flow of fluid by rising or falling. When the gate is raised to the top of the valve chamber, the valve is fully open and the fluid flows freely. When the gate is lowered to the valve seat, the valve is closed and the fluid is completely cut off. Gate valves have advantages such as low fluid resistance, good sealing performance, and wide applicability. They are widely used in industries such as petroleum, natural gas, water conservancy, and chemical engineering.

[0003] After a gate valve is put into use, there is a possibility that the control disc may be hit by other objects and rotate. This unexpected rotation will not only affect the precise control of the gate valve's operation, but may also cause abnormal fluctuations in parameters such as the flow rate and pressure of the medium in the pipeline, and may even cause safety hazards. Therefore, a pressure-resistant gate valve is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a pressure-resistant gate valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure-resistant gate valve, comprising:

[0006] Gate valve body;

[0007] A control rotary table is located on the top of the gate valve body;

[0008] An anti-rotation mechanism is provided below the control turntable, and is used to prevent the control turntable from rotating when it should not rotate.

[0009] Preferably, the anti-rotation mechanism includes:

[0010] A multifaceted collar, which is fixedly connected to the bottom of the control turntable;

[0011] Mounting block, which is fixedly connected to the front of the gate valve body;

[0012] L-shaped rotating rod, which is rotatably connected to the front of the mounting block;

[0013] A top block, located between the L-shaped rotating rod and the multi-faceted collar, is fixedly connected to one side of the L-shaped rotating rod;

[0014] A locking assembly is disposed below the mounting block and is used for positioning the L-shaped rotating rod.

[0015] Preferably, the locking component includes:

[0016] An arc-shaped block is fixedly connected to the front of the gate valve body;

[0017] The T-shaped groove is formed on the front side of the arc-shaped block;

[0018] The T-shaped slider is slidably fitted into the inner cavity of the T-shaped groove, and the T-shaped slider is fixedly connected to the back of the L-shaped rotating rod;

[0019] A threaded hole is provided on the front side of the L-shaped rotating rod;

[0020] A circular through hole is provided on the front side of the T-shaped slider, and the circular through hole communicates with a threaded hole.

[0021] An adjusting screw, wherein the outer wall of the adjusting screw is threadedly connected to the inner wall of the threaded hole, and the outer wall of the adjusting screw is movably sleeved with the inner cavity of the circular through hole;

[0022] A locking hole is provided on one side of the inner wall of the T-shaped groove;

[0023] A locking block is fixedly connected to one end of an adjusting screw, and the outer wall of the locking block is movably sleeved with the inner cavity of the locking hole.

[0024] A rotating component is disposed at the other end of the adjusting screw, and the rotating component is used to facilitate the application of force to drive the adjusting screw to rotate.

[0025] An anti-disengagement component is disposed outside the adjusting screw, and the anti-disengagement component is used to prevent the adjusting screw from completely disengaging from the threaded hole;

[0026] A reset component is provided on one side of the T-shaped slider, and the reset component is used to drive the L-shaped rotating rod to automatically perform a reset rotation.

[0027] Preferably, the rotating member includes:

[0028] A cylindrical rotating block, which is fixedly connected to the other end of the adjusting screw;

[0029] A rubber sleeve is fixedly fitted onto the outer wall of the cylindrical rotating block, and the outer wall of the rubber sleeve is provided with evenly distributed anti-slip textures.

[0030] Preferably, the anti-detachment component includes:

[0031] An annular anti-detachment groove is formed on the inner wall of the threaded hole;

[0032] An anti-detachment ring is located in the inner cavity of an annular anti-detachment groove and is fixedly sleeved on the outer wall of the adjusting screw.

[0033] Preferably, the reset element includes:

[0034] An arc-shaped hole is formed on the inner wall of the T-shaped groove;

[0035] An arc-shaped slide bar is slidably fitted into the inner cavity of an arc-shaped hole, and the arc-shaped slide bar is fixedly connected to one side of a T-shaped slider;

[0036] A return spring, one end of which is fixedly connected to one end of an arc-shaped slide rod, and the other end of which is fixedly connected to one side of the inner wall of an arc-shaped hole.

[0037] The technical effects and advantages of this utility model are as follows:

[0038] (1) This utility model utilizes the anti-rotation mechanism, through the cooperation between the multi-faceted collar, mounting block, L-shaped rotating rod, top block and locking assembly, to prevent the control disc of the gate valve from rotating when it should not rotate, thus ensuring the precise control of the gate valve's operating status.

[0039] (2) This utility model utilizes the setting of the reset component, and through the cooperation between the arc-shaped hole, the arc-shaped slide rod and the reset spring, the L-shaped rotating rod can be driven to automatically perform the reset rotation, which improves the convenience of operation. Attached Figure Description

[0040] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0041] Figure 2 This is a schematic diagram of the three-dimensional structure of the L-shaped rotating rod of this utility model.

[0042] Figure 3 This is a schematic diagram of the multi-faceted collar structure viewed from above.

[0043] Figure 4 This is a side cross-sectional view of the adjusting screw of this utility model.

[0044] Figure 5 This is a front cross-sectional view of the T-shaped slider of this utility model.

[0045] In the diagram: 1. Gate valve body; 2. Control dial; 3. Anti-rotation mechanism; 31. Multi-faceted collar; 32. Mounting block; 33. L-shaped rotating rod; 34. Top block; 35. Arc-shaped block; 36. T-shaped slider; 37. Adjusting screw; 38. Locking block; 39. Columnar rotating block; 310. Anti-disengagement ring; 311. Arc-shaped sliding rod; 312. Return spring. Detailed Implementation

[0046] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] This utility model provides, for example Figure 1-5 The pressure-resistant gate valve shown includes a gate valve body 1, a control rotary table 2, and an anti-rotation mechanism 3. The control rotary table 2 is located on the top of the gate valve body 1, and the anti-rotation mechanism 3 is located below the control rotary table 2. The anti-rotation mechanism 3 is used to prevent the control rotary table 2 from rotating when it should not rotate.

[0048] The anti-rotation mechanism 3 includes a multi-faceted collar 31, a mounting block 32, an L-shaped rotating rod 33, a top block 34, and a locking assembly. The multi-faceted collar 31 is fixedly connected to the bottom of the control turntable 2. The multi-faceted collar 31 can be designed according to actual needs, such as a four-faced collar, a five-faced collar, a six-faced collar, etc. The mounting block 32 is fixedly connected to the front of the gate valve body 1. The L-shaped rotating rod 33 is rotatably connected to the front of the mounting block 32. The L-shaped rotating rod 33 is rotatably connected to the mounting block 32 through a rotating shaft. The top block 34 is located between the L-shaped rotating rod 33 and the multi-faceted collar 31. The top block 34 is fixedly connected to one side of the L-shaped rotating rod 33. The locking assembly is located below the mounting block 32 and is used for positioning the L-shaped rotating rod 33.

[0049] The locking assembly includes an arc-shaped block 35, a T-shaped groove, a T-shaped slider 36, a threaded hole, a circular through hole, an adjusting screw 37, a locking hole, a locking block 38, a rotating component, an anti-disengagement component, and a reset component. The arc-shaped block 35 is fixedly connected to the front of the gate valve body 1. The T-shaped groove is opened on the front of the arc-shaped block 35. The T-shaped slider 36 is slidably sleeved in the inner cavity of the T-shaped groove. The T-shaped slider 36 is fixedly connected to the back of the L-shaped rotating rod 33. The T-shaped groove and the T-shaped slider 36 are used to cooperate with the reset component. The threaded hole is opened on the front of the L-shaped rotating rod 33. The circular through hole is opened on the front of the T-shaped slider 36. The circular through hole communicates with the threaded hole. The outer wall of the adjusting screw 37 is threadedly connected to the inner wall of the threaded hole. The outer wall of the adjusting screw 37 is movably sleeved with the inner cavity of the circular through hole. The locking hole is opened on one side of the inner wall of the T-shaped slide groove. The locking block 38 is fixedly connected to one end of the adjusting screw 37. The outer wall of the locking block 38 is movably sleeved with the inner cavity of the locking hole. The adjusting screw 37, which rotates clockwise in the threaded hole, will drive the locking block 38 to move into the locking hole. The rotating part is set at the other end of the adjusting screw 37. The rotating part is used to facilitate the application of force to drive the adjusting screw 37 to rotate. The anti-disengagement part is set on the outside of the adjusting screw 37. The anti-disengagement part is used to prevent the adjusting screw 37 from completely disengaging from the threaded hole. The reset part is set on one side of the T-shaped slider 36. The reset part is used to drive the L-shaped rotating rod 33 to automatically perform a reset rotation.

[0050] The rotating component includes a cylindrical rotating block 39 and a rubber sleeve. The cylindrical rotating block 39 is fixedly connected to the other end of the adjusting screw 37. The rubber sleeve is fixedly sleeved on the outer wall of the cylindrical rotating block 39. The rubber sleeve plays a protective role. The outer wall of the rubber sleeve is provided with evenly distributed anti-slip textures. The anti-slip textures are used to increase the friction between the rubber sleeve and the worker's fingers.

[0051] The anti-detachment component includes an annular anti-detachment groove and an anti-detachment ring 310. The annular anti-detachment groove is opened on the inner wall of the threaded hole, and the anti-detachment ring 310 is located in the inner cavity of the annular anti-detachment groove. The anti-detachment ring 310 is fixedly sleeved on the outer wall of the adjusting screw 37.

[0052] The reset component includes an arc-shaped hole, an arc-shaped slide bar 311, and a reset spring 312. The arc-shaped hole is formed on the inner wall of the T-shaped slide groove. The arc-shaped slide bar 311 is slidably sleeved in the inner cavity of the arc-shaped hole. The arc-shaped slide bar 311 is fixedly connected to one side of the T-shaped slider 36. One end of the reset spring 312 is fixedly connected to one end of the arc-shaped slide bar 311, and the other end of the reset spring 312 is fixedly connected to one side of the inner wall of the arc-shaped hole. The reset spring 312 can undergo elastic deformation, thereby driving the arc-shaped slide bar 311, the T-shaped slider 36, and the L-shaped rotating rod 33 to automatically perform reset movements, improving the convenience of operation.

[0053] Working principle of this utility model:

[0054] After the control dial 2 is used to open or close the gate valve, the L-shaped rotating rod 33 is driven by the cylindrical rotating block 39 to rotate counterclockwise around the mounting block 32. When the circular through hole on the T-shaped slider 36 is aligned with the locking hole, the adjusting screw 37 is driven by the cylindrical rotating block 39 to rotate clockwise in the threaded hole. The clockwise rotation of the adjusting screw 37 in the threaded hole will drive the locking block 38 to insert into the locking hole. When the locking block 38 is inserted into the locking hole, the positioning work of the L-shaped rotating rod 33 and the top block 34 is completed. At this time, the top block 34 will abut against one side of the multi-faceted collar 31, thereby effectively preventing the control dial 2 from rotating. This effectively prevents the control dial 2 of the gate valve from rotating when it should not, ensuring the precise control of the gate valve's operating status.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure resistant gate valve, characterized in that, The utility model relates to a gate valve, including: The gate valve body (1); The control rotary disc (2) is arranged on the top of the gate valve body (1); The anti-rotation mechanism (3) is arranged below the control rotary disc (2), and the anti-rotation mechanism (3) is used for preventing the control rotary disc (2) from rotating when the control rotary disc (2) should not rotate.

2. A pressure-seal gate valve according to claim 1, wherein The anti-rotation mechanism (3) includes: The multi-surface sleeve ring (31) is fixedly connected to the bottom of the control rotary disc (2); The mounting block (32) is fixedly connected to the front of the gate valve body (1); The L-shaped rotating rod (33) is rotatably connected to the front of the mounting block (32); The top block (34) is located between the L-shaped rotating rod (33) and the multi-surface sleeve ring (31), and the top block (34) is fixedly connected to one side of the L-shaped rotating rod (33); The locking assembly is arranged below the mounting block (32), and the locking assembly is used for positioning the L-shaped rotating rod (33).

3. A pressure seal gate valve according to claim 2, wherein The locking assembly includes: The arc-shaped block (35) is fixedly connected to the front of the gate valve body (1); The T-shaped sliding groove is formed in the front of the arc-shaped block (35); The T-shaped sliding block (36) is slidably sleeved in the inner cavity of the T-shaped sliding groove, and the T-shaped sliding block (36) is fixedly connected to the back of the L-shaped rotating rod (33); The threaded hole is formed in the front of the L-shaped rotating rod (33); The circular through hole is formed in the front of the T-shaped sliding block (36), and the circular through hole is in communication with the threaded hole; The adjusting screw rod (37) is threadedly connected to the outer wall of the threaded hole, and the outer wall of the adjusting screw rod (37) is movably sleeved with the inner cavity of the circular through hole; The locking hole is formed in one side of the inner wall of the T-shaped sliding groove; The locking block (38) is fixedly connected to one end of the adjusting screw rod (37), and the outer wall of the locking block (38) is movably sleeved with the inner cavity of the locking hole; The rotating member is arranged on the other end of the adjusting screw rod (37), and the rotating member is used for facilitating force application to drive the adjusting screw rod (37) to rotate; The anti-disengagement member is arranged outside the adjusting screw rod (37), and the anti-disengagement member is used for preventing the adjusting screw rod (37) from completely disengaging from the threaded hole; The reset member is arranged on one side of the T-shaped sliding block (36), and the reset member is used for driving the L-shaped rotating rod (33) to automatically reset and rotate.

4. A pressure seal gate valve according to claim 3, wherein The rotating member includes: The cylindrical rotating block (39) is fixedly connected to the other end of the adjusting screw rod (37); The rubber sleeve is fixedly sleeved on the outer wall of the cylindrical rotating block (39), and the outer wall of the rubber sleeve is uniformly provided with anti-skid lines.

5. A pressure seal gate valve according to claim 3, wherein The anti-disengagement member includes: The annular anti-disengagement groove is formed in the inner wall of the threaded hole; The anti-disengagement ring (310) is located in the inner cavity of the annular anti-disengagement groove, and the anti-disengagement ring (310) is fixedly sleeved on the outer wall of the adjusting screw rod (37).

6. A pressure seal gate valve as defined in claim 3 wherein, The reset member includes: An arc-shaped hole is arranged in the inner wall of the T-shaped sliding groove; An arc-shaped sliding rod (311) is slidingly sleeved in the inner cavity of the arc-shaped hole, and is fixedly connected to one side of the T-shaped sliding block (36); A reset spring (312) is fixedly connected to one end of the arc-shaped sliding rod (311), and the other end of the reset spring (312) is fixedly connected to one side of the inner wall of the arc-shaped hole.

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