Forged gate valve with good sealing effect

By using adjustment components and fixing mechanisms in the forged gate valves, the problem of deterioration of sealing strips is solved, and a more stable and sealable valve body and pipe connection is achieved.

CN222687346UActive Publication Date: 2025-03-28HEILONGJIANG NORTH VALVE IND CO LTD
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Patent Information

Application Number
CN202421480404.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-26
Publication Date
2025-03-28
Estimated Expiration
2034-06-26

AI Technical Summary

Technical Problem

When the existing forged gate valve is connected to the pipe, the sealing strip is prone to deform, resulting in poor sealing at the connection.

Method used

The adjustment components and fixing mechanism are adopted to achieve the switching control of the valve body through the coordination of screw sleeves, screws, handwheels, and sealing valve discs; the stability and sealing of the valve body and pipe connection are improved through the coordination of the installation frame, the interface, the connection frame, the insertion plate, the socket, the pull rod, the pull handle, the sliding sleeve, the limiting plate, the insertion block, and the spring.

Benefits of technology

Through the coordination of the adjustment component and the fixing mechanism, flexible switching control of the valve body is achieved, and the stability and sealing of the valve body and pipe connection are improved, avoiding the problem of decreasing sealing properties caused by deformation of the seal strip.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a forged gate valve with a good sealing effect, which relates to the technical field of forged gate valves and comprises a valve body, a valve cover is movably mounted at the upper end of the valve body, an adjusting component is mounted in the valve cover, and pipelines are symmetrically and movably mounted on the left side and the right side of the valve body. Flange plates are fixedly installed on the two sides of the valve body and the top of the pipeline. Under the cooperation of the mounting frame, the butt joint port, the connecting frame, the inserting plate, the inserting port, the pull rod, the pull handle, the sliding sleeve, the limiting plate, the inserting block and the spring, after the flange plate on the valve body is connected with the flange plate on the pipeline, the inserting plate can be inserted into the mounting frame through the butt joint port, and meanwhile under the elastic effect of the spring, the inserting plate can be inserted into the pipeline. When the valve body is connected with the pipeline, the limiting plate and the inserting block can be pushed to move towards the inserting plate, so that the inserting block can be inserted into the inserting opening, the inserting plate can be limited and fixed, the connecting stability of the valve body and the pipeline can be improved, and meanwhile the connecting sealing performance of the valve body and the pipeline is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of forged gate valves, in particular to a forged gate valve with good sealing effect. Background Art

[0002] The gate valve is a gate plate of an opening and closing part. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled. The gate valve is sealed by the contact between the valve seat and the gate plate. Usually, the sealing surface will be welded with metal materials to increase wear resistance, such as 1Cr13, STL6, stainless steel, etc. The gate plate has a rigid gate plate and an elastic gate plate. According to the different gate plates, the gate valve is divided into a rigid gate valve and an elastic gate valve.

[0003] The opening and closing part of the gate valve is the gate plate. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.

[0004] The existing technology has the following problems:

[0005] In actual use of existing forged gate valves, flange connection is often used when the gate valve is connected to the pipeline, and a sealing strip is installed. However, after long-term use, the sealing strip is easily deformed, resulting in poor sealing performance at the connection between the forged gate valve and the pipeline. Utility Model Content

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A forged gate valve with good sealing effect comprises a valve body, a valve cover is movably installed on the upper end of the valve body, an adjusting component is installed inside the valve cover, pipes are symmetrically and movably installed on the left and right sides of the valve body, flanges are fixedly installed on both sides of the valve body and the top of the pipe, a fixing mechanism is installed at the connection between the valve body and the pipe, a plurality of groups of equidistantly distributed bolts are movably inserted on the surface of the flange, and nuts with threaded connection are sleeved on the bottom of the bolts.

[0008] Preferably, the adjusting assembly comprises a screw sleeve, the lower end of which is fixedly mounted on the top of the valve cover, the internal thread of the screw sleeve is connected to a screw rod, a hand wheel is fixedly mounted on the top of the screw rod, and a sealing valve disc is movably mounted in the middle of the valve body.

[0009] Preferably, the lower end of the screw passes through the valve cover and extends into the interior of the valve body.

[0010] Preferably, the bottom of the screw is rotatably connected to the upper end of the sealing valve disc.

[0011] Preferably: the fixing mechanism comprises a mounting frame, the bottom end of the mounting frame is symmetrically fixedly installed on the front and rear sides of the valve body, a docking port is provided on the outer side of the mounting frame, a connecting frame is fixedly installed on the front end of the mounting frame, plug plates are symmetrically fixedly installed on the front and rear sides of the top of the pipeline, a socket is provided on the front end of the plug plate, a pull rod is slidably installed in the middle of the connecting frame, a pull handle is fixedly installed on the top of the pull rod, a sliding sleeve is fixedly installed in the middle of the front end of the mounting frame, a limit plate is movably installed inside the mounting frame, a plug block is fixedly installed on the rear end of the limit plate, and springs are symmetrically installed on both sides of the front end of the limit plate.

[0012] Preferably, the plug plate is in an "L" shape, the front end of the plug plate matches the docking port, the plug plate can be inserted into the installation frame through the docking port, and the outside of the pull rod is slidably connected to the inside of the sliding sleeve.

[0013] Preferably: the bottom of the pull rod extends into the installation frame through the sliding sleeve, the bottom of the pull rod is fixedly installed in the middle of the front end of the limit plate, the plug block matches the socket and is movably connected, one end of the spring is symmetrically fixedly installed on both sides of the front end of the limit plate, and the other end is symmetrically fixedly installed on the front end inner wall of the installation frame.

[0014] Preferably, the valve body and the valve cover can be installed by bolts and nuts.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] The utility model provides a forged gate valve with good sealing effect. Through an adjusting mechanism, through the cooperation of a screw sleeve, a screw rod, a hand wheel and a sealing valve disc, the sealing valve plate can be driven to move up and down by rotating the screw rod, thereby facilitating the control of the switch of the valve body and facilitating the use of the valve body.

[0017] The utility model provides a forged gate valve with good sealing effect. Through a fixing mechanism, through the cooperation of an installation frame, a docking port, a connecting frame, a plug plate, a socket, a pull rod, a pull handle, a sliding sleeve, a limit plate, a plug block and a spring, after a flange on a valve body is connected with a flange on a pipeline, the plug plate can be inserted into the installation frame through the docking port. At the same time, under the elastic action of the spring, the limit plate and the plug block can be pushed to move in the direction of the plug plate, so that the plug block can be inserted into the socket, thereby limiting and fixing the plug plate, thereby improving the stability of the connection between the valve body and the pipeline, and at the same time improving the sealing performance of the connection between the valve body and the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the forged gate valve with good sealing effect of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a side view of a forged gate valve with good sealing effect of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the adjustment component of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the detail diagram of the fixing mechanism of the utility model.

[0023] In the figure: 1. valve body; 2. valve cover; 3. adjustment assembly; 4. pipeline; 5. flange; 6. fixing mechanism; 7. bolt; 8. nut; 31. threaded sleeve; 32. screw; 33. handwheel; 34. sealing valve disc; 61. mounting frame; 62. docking port; 63. connecting frame; 64. plug plate; 65. socket; 66. pull rod; 67. pull handle; 68. sliding sleeve; 69. limit plate; 610. plug block; 611. spring. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the embodiments:

[0025] like Figure 1-5 As shown, the utility model provides a forged gate valve with good sealing effect, including a valve body 1, a valve cover 2 is movably installed on the upper end of the valve body 1, an adjusting component 3 is installed inside the valve cover 2, pipes 4 are symmetrically and movably installed on the left and right sides of the valve body 1, flanges 5 are fixedly installed on both sides of the valve body 1 and the top of the pipe 4, a fixing mechanism 6 is installed at the connection between the valve body 1 and the pipe 4, a plurality of groups of equidistantly distributed bolts 7 are movably inserted on the surface of the flange 5, and a threaded nut 8 is sleeved on the bottom of the bolt 7.

[0026] The valve body 1 and the valve cover 2 can be installed by bolts 7 and nuts 8.

[0027] Flanges 5 are installed on both the valve body 1 and the pipeline 4, so that the valve body 1 and the pipeline 4 are conveniently connected. At the same time, bolts 7 can pass through the two sets of flanges 5 and are tightened by nuts 8, so that the valve body 1 and the pipeline 4 can be fixed, so that the pipeline 4 is not easy to loosen.

[0028] like Figure 3 As shown, the adjustment assembly 3 includes a screw sleeve 31, the lower end of the screw sleeve 31 is fixedly installed on the top of the valve cover 2, the internal thread of the screw sleeve 31 is connected to a screw rod 32, the top of the screw rod 32 is fixedly installed with a hand wheel 33, and a sealing valve disc 34 is movably installed in the middle of the valve body 1.

[0029] The lower end of the screw rod 32 passes through the valve cover 2 and extends into the interior of the valve body 1 .

[0030] The bottom of the screw rod 32 is rotatably connected to the upper end of the sealing valve disc 34 .

[0031] The sealing valve flap 34 can be driven by the screw rod 32 to move up and down, thereby controlling the opening and closing of the valve body 1.

[0032] like Figure 4-5 As shown, the fixing mechanism 6 includes a mounting frame 61, the bottom end of the mounting frame 61 is symmetrically fixedly installed on the front and rear sides of the valve body 1, a docking port 62 is provided on the outer side of the mounting frame 61, a connecting frame 63 is fixedly installed on the front end of the mounting frame 61, plug plates 64 are symmetrically fixedly installed on the front and rear sides of the top of the pipeline 4, a plug port 65 is provided on the front end of the plug plate 64, a pull rod 66 is slidably installed in the middle of the connecting frame 63, a pull handle 67 is fixedly installed on the top of the pull rod 66, a sliding sleeve 68 is fixedly installed in the middle of the front end of the mounting frame 61, a limit plate 69 is movably installed inside the mounting frame 61, an insert block 610 is fixedly installed at the rear end of the limit plate 69, and springs 611 are symmetrically installed on both sides of the front end of the limit plate 69.

[0033] The plug plate 64 is in an “L” shape, and the front end of the plug plate 64 matches the docking port 62 . The plug plate 64 can be inserted into the installation frame 61 through the docking port 62 . The outside of the pull rod 66 is slidably connected to the inside of the sliding sleeve 68 .

[0034] The bottom of the pull rod 66 passes through the sliding sleeve 68 and extends into the mounting frame 61. The bottom of the pull rod 66 is fixedly installed in the middle of the front end of the limit plate 69. The plug block 610 matches the socket 65 and is movably connected. One end of the spring 611 is symmetrically fixedly installed on both sides of the front end of the limit plate 69, and the other end is symmetrically fixedly installed on the front inner wall of the mounting frame 61.

[0035] The spring 611 is provided to elastically support the limit plate 69, so that the plug block 610 and the socket 65 can be tightly plugged together, and the valve body 1 and the pipeline 4 can be tightly fitted, so that the sealing effect can be improved.

[0036] The following is a detailed description of the working principle of the forged gate valve with good sealing effect.

[0037] like Figure 1-5As shown, when the forged gate valve with good sealing effect is in use, first, the flanges 5 on both sides of the valve body 1 can be connected with the flanges 5 on the pipeline 4, and at the same time, the pull rod 66 can be pulled outward through the pull handle 67, so that the pull rod 66 drives the limit plate 69 away from the valve body 1, and at the same time, the spring 611 can be squeezed to deform it. When the valve body 1 and the pipeline 4 are connected, the plug plate 64 on the pipeline 4 can be inserted into the installation frame 61 through the docking port 62 at the same time, so that the position of the socket 65 is aligned with the position of the plug block 610, and then the pull handle 67 can be released. Under the rebound effect of the deformed spring 611, the limit plate 69 can be squeezed, so that the limit plate 69 drives the plug block 610 to move toward the plug plate 64, so that the plug block 610 can be inserted into the socket 65 on the plug plate 64, and then the plug plate 64 can be aligned. The flange 5 on the pipe 4 and the flanges 5 on both sides of the valve body 1 can be closely fitted, so that the stability after connection is improved, and the connection sealing can be improved. Then, the bolt 7 is passed through the valve body 1 and the flange 5 of the pipe 4, and the nut 8 is sleeved on the bolt 7 and tightened, so that the pipe 4 can be fixed and it is not easy to loosen. At the same time, the hand wheel 33 can be reversed, so that the hand wheel 33 drives the screw rod 32 to rotate in the screw sleeve 31, so that the screw rod 32 drives the sealing valve disc 34 to move upward, and then the valve body 1 can be opened to facilitate the flow of liquid. After the hand wheel 33 is turned forward, the screw rod 32 can drive the sealing valve disc 34 to descend, and then the valve body 1 can be closed to prevent the flow of liquid, so that the switch of the valve body 1 can be controlled, so that the practicability of the device is improved.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A forged gate valve with good sealing effect, comprising a valve body (1), a valve cover (2) movably mounted on the upper end of the valve body (1), characterized in that: An adjusting assembly (3) is installed inside the valve cover (2); pipelines (4) are symmetrically and movably installed on the left and right sides of the valve body (1); flanges (5) are fixedly installed on both sides of the valve body (1) and the top of the pipeline (4); a fixing mechanism (6) is installed at the connection between the valve body (1) and the pipeline (4); a plurality of groups of equidistantly distributed bolts (7) are movably inserted on the surface of the flange (5); and a nut (8) with a threaded connection is sleeved on the bottom of the bolt (7); The fixing mechanism (6) comprises a mounting frame (61), the bottom end of the mounting frame (61) is symmetrically fixedly mounted on the front and rear sides of the valve body (1), the outer side of the mounting frame (61) is provided with a docking port (62), the front end of the mounting frame (61) is fixedly mounted with a connecting frame (63), the front and rear sides of the top of the pipeline (4) are symmetrically fixedly mounted with plug plates (64), the front end of the plug plates (64) is provided with a socket (65), a pull rod (66) is slidably mounted in the middle of the connecting frame (63), a pull handle (67) is fixedly mounted on the top of the pull rod (66), a sliding sleeve (68) is fixedly mounted in the middle of the front end of the mounting frame (61), a limit plate (69) is movably mounted inside the mounting frame (61), a plug block (610) is fixedly mounted at the rear end of the limit plate (69), and springs (611) are symmetrically mounted on both sides of the front end of the limit plate (69).

2. A forged gate valve with good sealing effect according to claim 1, characterized in that: The adjusting assembly (3) comprises a screw sleeve (31), the lower end of which is fixedly mounted on the top of the valve cover (2), the inner thread of the screw sleeve (31) is connected to a screw rod (32), the top of the screw rod (32) is fixedly mounted with a hand wheel (33), and a sealing valve disc (34) is movably mounted in the middle of the inner part of the valve body (1).

3. A forged gate valve with good sealing effect according to claim 2, characterized in that: The lower end of the screw rod (32) passes through the valve cover (2) and extends into the interior of the valve body (1).

4. A forged gate valve with good sealing effect according to claim 3, characterized in that: The bottom of the screw rod (32) is rotatably connected to the upper end of the sealing valve flap (34).

5. A forged gate valve with good sealing effect according to claim 1, characterized in that: The plug plate (64) is in an "L" shape, the front end of the plug plate (64) matches the docking port (62), the plug plate (64) can be inserted into the installation frame (61) through the docking port (62), and the outside of the pull rod (66) is slidably connected to the inside of the sliding sleeve (68).

6. A forged gate valve with good sealing effect according to claim 5, characterized in that: The bottom of the pull rod (66) passes through the sliding sleeve (68) and extends into the installation frame (61). The bottom of the pull rod (66) is fixedly installed in the middle of the front end of the limiting plate (69). The plug block (610) matches the socket (65) and is movably connected. One end of the spring (611) is symmetrically fixedly installed on both sides of the front end of the limiting plate (69), and the other end is symmetrically fixedly installed on the inner wall of the front end of the installation frame (61).

7. A forged gate valve with good sealing effect according to claim 1, characterized in that: The valve body (1) and the valve cover (2) can be mounted via bolts (7) and nuts (8).