Novel gate valve

Abstract

The utility model provides a novel gate valve which comprises a supporting valve body, a valve cover, a supporting frame, a top plate, a screw rod, a hand wheel, a sealing valve plate and an outer side sealing plate, the valve cover is fixedly installed on the top of the supporting valve body, the supporting frame is fixedly installed on the surface of the valve cover, and the top plate is fixedly installed on the top of the supporting frame; the screw rod is rotationally installed between the valve cover and the top plate, the hand wheel is fixedly installed at the top of the screw rod, and the sealing valve plate is installed in the supporting valve body and the valve cover in a sliding mode and meshed with the screw rod; the outer side closing plate is fixedly mounted on the outer side of the supporting valve body; due to the arrangement of the supporting valve body and the outer side sealing plate, the sealing performance is high, and large fluid impact can be dealt with.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gate valve especially relates to a novel gate valve. BACKGROUND

[0002] As a common fluid control device, gate valves are widely used in petroleum, chemical industry, power, water conservancy and other industries, mainly for cutting off or connecting fluid medium in the pipeline. The traditional gate valve is usually composed of valve body, valve cover, valve plate, screw rod and hand wheel, etc. The lifting of the valve plate is driven by manual or electric mode to realize the on-off control of fluid. However, in practical application, the traditional gate valve has the following problems:

[0003] 1. Insufficient sealing performance: the sealing structure of the traditional gate valve is relatively simple, which is easy to wear after long-term use, resulting in a decrease in sealing performance and causing fluid leakage, especially in high pressure, high temperature or corrosive medium environment, the problem is more prominent.

[0004] 2. Large fluid impact: during the opening and closing process of the valve, the valve plate of the traditional gate valve moves suddenly, which can easily cause fluid impact, resulting in pipeline vibration and noise, and even damage to the valve and related equipment.

[0005] Therefore, it is necessary to invent a new type of gate valve. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above technical problems, the utility model provides a new type of gate valve to solve the problem of insufficient sealing performance and large fluid impact of the existing gate valve structure. A new type of gate valve, comprising a support valve body, a valve cover, a support frame, a top plate, a screw rod, a hand wheel, a sealing valve plate and an outer side closing plate, wherein: the valve cover is fixedly installed on the top of the support valve body, and the support frame is fixedly installed on the surface of the valve cover, and the top plate is fixedly installed on the top of the support frame; the screw rod is rotatably installed between the valve cover and the top plate, and the hand wheel is fixedly installed on the top of the screw rod, and the sealing valve plate is slidably installed inside the support valve body and the valve cover and engaged on the screw rod; the outer side closing plate is fixedly installed on the outer side of the support valve body.

[0007] The support valve body comprises a support base, a sealing ring, a sliding chamber and a connecting seat, and the sealing ring is adhesively fixed on the front and rear surfaces of the support base, and the sliding chamber is fixedly installed on the top of the support base; the connecting seat is fixedly installed on the outer side of the support base, and the sealing valve plate is slidably installed in the inner side of the sliding chamber; the connecting seat is fixedly installed with the outer side closing plate.

[0008] The outer sealing plate comprises an inlet end sealing plate, an inlet end pipe, an outlet end sealing plate, an outlet end pipe and a connecting buckle, the inlet end pipe is fixedly installed on the upper half of the inlet end sealing plate, the inlet end sealing plate is fixedly installed on the outer side of the front end of the supporting base through the connecting buckle, the outlet end pipe is fixedly installed on the lower half of the outlet end sealing plate, and the outlet end sealing plate is fixedly installed on the outer side of the rear end of the supporting base through the connecting buckle.

[0009] The supporting base supporting the valve body is an elliptical steel structure, and the sliding chamber is a hollow steel structure, and a sliding groove is arranged in the sliding chamber.

[0010] The inlet end sealing plate and the outlet end sealing plate in the outer sealing plate seal the supporting valve body, the inlet end pipe penetrates the inlet end sealing plate, and the inner end of the inlet end pipe is attached to the sealing valve plate; the outlet end pipe penetrates the outlet end sealing plate, and the inner end of the outlet end pipe is attached to the sealing valve plate; the height of the inlet end pipe is higher than that of the outlet end pipe, when the sealing valve plate is opened, the outlet end pipe is opened first, and then the inlet end pipe is opened, when the sealing valve plate is closed, the inlet end pipe is closed first, and then the outlet end pipe is closed.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1. The supporting valve body is provided for overall support, the supporting valve body is the main structure of the new gate valve and is made of a solid material, can bear the internal fluid pressure and external load during valve operation, the front and rear surfaces of the supporting valve body are usually bonded with sealing rings, the sealing rings are closely attached to the sealing valve plate, form an effective sealing barrier, prevent fluid leakage when the valve is closed, ensure the sealing performance of the valve, the overall elliptical design of the supporting valve body matches the accurate matching of the inlet end pipe and the outlet end pipe with different heights in the inner side of the outer sealing plate, this design reduces the turbulence and vortex of fluid when passing through the valve, improves the fluid control efficiency and sealing performance of the valve.

[0013] 2. The outer sealing plate is provided and closely cooperates with the supporting valve body and the connecting seat and other components, forms an effective sealing barrier, when the valve is closed, it can prevent fluid leakage from the connection between the valve and the pipeline system, ensures the sealing performance of the valve and the pipeline system, the different heights of the inlet end pipe and the outlet end pipe make the valve unable to immediately cut off the flow when being opened or closed, prevent the impact of the fast flow rate on the sealing valve plate, and the long-time impact can easily cause slight deformation of the sealing valve plate, thereby causing the sealing performance to decrease. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model.

[0015] Figure 2It is the structural schematic view of the support valve body of the utility model.

[0016] Figure 3 It is the structural schematic view of the outside closing plate of the utility model.

[0017] In the drawing,

[0018] Support valve body 1, support base body 11, sealing ring 12, sliding chamber 13, connecting seat 14, valve cover 2, support frame 3, top plate 4, screw 5, hand wheel 6, sealing valve plate 7, outside closing plate 8, inlet end closing plate 81, inlet end pipe 82, outlet end closing plate 83, outlet end pipe 84, connecting buckle 85. DETAILED DESCRIPTION

[0019] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be clearly and completely described below, obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the protection scope of the utility model.

[0020] As shown in the accompanying Figure 1 to the accompanying Figure 3 As shown.

[0021] The utility model provides a novel gate valve, including support valve body 1, valve cover 2, support frame 3, top plate 4, screw 5, hand wheel 6, sealing valve plate 7 and outside closing plate 8, wherein: valve cover 2 is fixedly installed at the top of support valve body 1, and support frame 3 is fixedly installed on the surface of valve cover 2, and the top plate 4 is fixedly installed at the top of support frame 3, the screw 5 is rotatably installed between valve cover 2 and top plate 4, and hand wheel 6 is fixedly installed at the top of screw 5, the sealing valve plate 7 is slidably installed inside support valve body 1 and valve cover 2, and is engaged on screw 5, and the outside closing plate 8 is fixedly installed on the outside of support valve body 1.

[0022] Support valve body 1 includes support base body 11, sealing ring 12, sliding chamber 13 and connecting seat 14, and sealing ring 12 is adhesively fixed on the front and rear surfaces of support base body 11, and the sliding chamber 13 is fixedly installed at the top of support base body 11, the connecting seat 14 is fixedly installed on the outside of support base body 11, and the sealing valve plate 7 is slidably installed inside sliding chamber 13, and the connecting seat 14 is fixedly installed with outside closing plate 8.

[0023] The outer sealing plate 8 comprises an inlet end sealing plate 81, an inlet end pipe 82, an outlet end sealing plate 83, an outlet end pipe 84 and a connecting buckle 85, the inlet end pipe 82 is fixedly installed on the upper half of the inlet end sealing plate 81, the inlet end sealing plate 81 is fixedly installed on the outer side of the front end of the supporting base body 11 through the connecting buckle 85, the outlet end pipe 84 is fixedly installed on the lower half of the outlet end sealing plate 83, and the outlet end sealing plate 83 is fixedly installed on the outer side of the rear end of the supporting base body 11 through the connecting buckle 85.

[0024] The supporting base body 11 inside the supporting valve body 1 adopts an elliptical steel metal structure, and the sliding chamber 13 adopts a hollow steel metal structure, and a sliding groove is arranged in the sliding chamber 13.

[0025] The inlet end sealing plate 81 and the outlet end sealing plate 83 inside the outer sealing plate 8 seal the supporting valve body 1, the inlet end pipe 82 penetrates the inlet end sealing plate 81, and the inner end of the inlet end pipe 82 is attached to the sealing valve plate 7, the outlet end pipe 84 penetrates the outlet end sealing plate 83, and the inner end of the outlet end pipe 84 is attached to the sealing valve plate 7, the height of the inlet end pipe 82 is higher than that of the outlet end pipe 84, when the sealing valve plate 7 is opened, the outlet end pipe 84 is opened first, and then the inlet end pipe 82 is opened, when the sealing valve plate 7 is closed, the inlet end pipe 82 is closed first, and then the outlet end pipe 84 is closed.

[0026] The novel gate valve drives the screw rod (5) to rotate through the hand wheel (6), drives the sealing valve plate (7) to ascend and descend in the sliding chamber (13), and realizes the on-off control of the fluid. When being opened, the sealing valve plate (7) ascends, the outlet end pipe (84) is opened first, then the inlet end pipe (82) is opened, the fluid flows into from the inlet end pipe (82), and flows out from the outlet end pipe (84) after passing through the supporting valve body (1); when being closed, the sealing valve plate (7) descends, the inlet end pipe (82) is closed first, then the outlet end pipe (84) is closed, and the fluid flow is cut off. The height difference design of the inlet end pipe and the outlet end pipe reduces the fluid impact, the sealing ring (12) and the outer sealing plate (8) enhance the sealing performance, and is suitable for the stable control of high-pressure fluid.

[0027] The technical scheme disclosed by the utility model, or the technical scheme inspired by the technical scheme of the utility model, can be used to design similar technical schemes, and achieve the above technical effects, which fall within the protection scope of the utility model.

Claims

1. A new type of gate valve characterized by: The utility model provides a valve body (1), valve cover (2), support frame (3), roof (4), screw rod (5), hand wheel (6), sealing valve plate (7) and outside closing plate (8) are included, wherein: valve cover (2) fixed mounting is installed at the top of support valve body (1), and support frame (3) fixed mounting is installed on the surface of valve cover (2), and this roof (4) fixed mounting is installed at the top of support frame (3);Screw rod (5) rotation is installed between valve cover (2) and roof (4), and hand wheel (6) fixed mounting is installed at the top of screw rod (5), and sealing valve plate (7) sliding installation is installed inside support valve body (1) and valve cover (2), and is engaged on screw rod (5);Outside closing plate (8) fixed mounting is installed at the outside of support valve body (1).

2. A new type of gate valve as claimed in claim 1, characterized in that: The utility model provides a valve body (1), valve cover (2), support frame (3), roof (4), screw rod (5), hand wheel (6), sealing valve plate (7) and outside closing plate (8) are included, wherein: valve cover (2) fixed mounting is installed at the top of support valve body (1), and support frame (3) fixed mounting is installed on the surface of valve cover (2), and this roof (4) fixed mounting is installed at the top of support frame (3);Screw rod (5) rotation is installed between valve cover (2) and roof (4), and hand wheel (6) fixed mounting is installed at the top of screw rod (5), and sealing valve plate (7) sliding installation is installed inside support valve body (1) and valve cover (2), and is engaged on screw rod (5);Outside closing plate (8) fixed mounting is installed at the outside of support valve body (1).

3. A new type of gate valve as claimed in claim 1, characterized in that: The utility model discloses a valve body (1), valve cover (2), support frame (3), roof (4), screw rod (5), hand wheel (6), sealing valve plate (7) and outside closing plate (8) are included, wherein: valve cover (2) fixed mounting is installed at the top of support valve body (1), and support frame (3) fixed mounting is installed on the surface of valve cover (2), and this roof (4) fixed mounting is installed at the top of support frame (3);Screw rod (5) rotation is installed between valve cover (2) and roof (4), and hand wheel (6) fixed mounting is installed at the top of screw rod (5), and sealing valve plate (7) sliding installation is installed inside support valve body (1) and valve cover (2), and is engaged on screw rod (5);Outside closing plate (8) fixed mounting is installed at the outside of support valve body (1).

4. A new type of gate valve as claimed in claim 2, characterized in that: The utility model discloses a valve body (1), valve cover (2), support frame (3), roof (4), screw rod (5), hand wheel (6), sealing valve plate (7) and outside closing plate (8) are included, wherein: valve cover (2) fixed mounting is installed at the top of support valve body (1), and support frame (3) fixed mounting is installed on the surface of valve cover (2), and this roof (4) fixed mounting is installed at the top of support frame (3);Screw rod (5) rotation is installed between valve cover (2) and roof (4), and hand wheel (6) fixed mounting is installed at the top of screw rod (5), and sealing valve plate (7) sliding installation is installed inside support valve body (1) and valve cover (2), and is engaged on screw rod (5);Outside closing plate (8) fixed mounting is installed at the outside of support valve body (1).

5. A new type of gate valve as claimed in claim 3, characterized in that: ​

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