Rotary gate valve

Abstract

The utility model discloses a rotary gate valve, which relates to the field of valves, and comprises at least one group of switch valve assembly, a valve body and a switching control piece, each group of switch valve assembly comprises a valve opening piece and a valve closing piece, the valve body is provided with at least one group of mounting holes, and each group of mounting holes is used for the detachable mounting of one group of switch valve assembly. Each group of mounting holes comprises a first mounting hole and a second mounting hole, and the switching control piece is used for switching the position of the switch valve assembly; when the valve needs to be opened, after the valve opening piece is aligned with the first mounting hole of the valve body through the switching control piece, the valve is opened, and the two pipelines are communicated; when the valve needs to be closed, after the valve closing piece is aligned with the first mounting hole of the valve body through the switching control piece, the valve is closed, and medium circulation between two pipelines is blocked; maintenance and repair are convenient under the condition of production operation, dirt adhering to the valve body can be conveniently cleaned after switching of the switching control piece, and normal industrial production can not be affected.

Description

Technical Field

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

[0002] In industrial production, many industrial pipeline valves are installed in pipelines containing large amounts of dust and viscous fluids. These impurities can easily damage the valve's sealing structure, preventing it from opening or closing at critical moments, ultimately clogging the pipeline. Currently, widely used valves, whether ball valves, butterfly valves, or gate valves, are difficult to repair and maintain during operation. Many applications require backup piping, which takes up a large amount of space and consumes exponentially more equipment and materials. In extreme cases, a water-sealed tank with a certain height difference is constructed to shut off the seal, causing significant water pollution and increasing the burden of environmental pollution control. After a period of use, the accumulated dirt and impurities require even greater cleaning work. Utility Model Content

[0003] The purpose of this utility model is to design a rotary gate valve in order to solve the above problems.

[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0005] Rotary gate valve, including:

[0006] At least one set of switch valve assemblies; each set of switch valve assemblies includes an opening valve component and a closing valve component;

[0007] The valve body is provided with at least one set of mounting holes, each set of mounting holes is used for the detachable installation of a set of switch valve assemblies, and each set of mounting holes includes a first mounting hole and a second mounting hole, wherein both ends of the first mounting hole are respectively connected to the two pipes;

[0008] Switching control component; the switching control component is used to switch the position of the switch valve assembly. When the valve is opened, the valve opening component is located in the first mounting hole, and the two pipes are connected. When the valve is closed, the valve closing component is located in the first mounting hole, blocking the flow of medium between the two pipes.

[0009] The beneficial effects of the present invention are as follows: when the valve needs to be opened, the control member is switched so that the valve opening member is aligned with the first mounting hole of the valve body, thereby opening the valve and connecting the two pipes; when the valve needs to be closed, the control member is switched so that the valve closing member is aligned with the first mounting hole of the valve body, thereby closing the valve and blocking the flow of the medium between the two pipes; during production operation, repair and maintenance are convenient, and after switching the control member, dirt stuck on the valve body can be easily cleaned without affecting normal industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1This is a structural diagram of the rotary gate valve of the utility model;

[0011] Figure 2 This is a schematic diagram of the internal structure of the rotary gate valve of the utility model;

[0012] Figure 3 This is a schematic diagram of the closing valve of the rotary gate valve of the utility model;

[0013] Figure 4 This is a schematic diagram of the sealing assembly in the rotary gate valve of the utility model;

[0014] The corresponding figures are as follows:

[0015] Open valve member, 2-close valve member, 3-valve body, 4-first mounting hole, 5-second mounting hole, 6-pipeline, 7-rotating shaft, 8-valve plate, 9-installation chamber, 10-bearing, 11-filling material inlet, 12-filling material outlet, 13-blind plate, 14-opening plate, 15-sealing round tube, 16-third sealing ring. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the embodiments of the present invention. It should be understood that the described embodiments are only a portion of the embodiments of the present invention, not all of them. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0019] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0020] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0021] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0022] The specific implementation of the present invention is described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, the rotary gate valve comprises:

[0024] At least one set of switch valve components; each set of switch valve components includes a valve opening component 1 and a valve closing component 2;

[0025] Valve body 3; at least one set of mounting holes is provided on the valve body 3, each set of mounting holes is used for detachable installation of a set of switch valve components, each set of mounting holes includes a first mounting hole 4 and a second mounting hole 5, wherein both ends of the first mounting hole 4 are respectively connected to two pipes 6;

[0026] Switching control component; the switching control component is used to switch the position of the switch valve assembly. When the valve is opened, the valve opening component 1 is located in the first mounting hole 4, and the two pipes 6 are connected. When the valve is closed, the valve closing component 2 is located in the first mounting hole 4, blocking the flow of medium between the two pipes 6.

[0027] The switching control assembly includes a rotating shaft 7 and a valve plate 8. An installation chamber 9 is provided in the valve body 3. The valve plate 8 is installed in the installation chamber 9. At least one group of fixing holes is provided on the valve plate 8. Each group of fixing holes includes two fixing holes. The valve opening member 1 and the valve closing member 2 are respectively detachably installed in the two fixing holes. A connecting hole is provided on the valve plate 8. The rotating shaft 7 is fixedly installed in the connecting hole. The two ends of the rotating shaft 7 are respectively rotatably installed in the installation chamber 9.

[0028] The switching control assembly further includes two bearings 10 , the inner rings of the two bearings 10 are both sleeved on the rotating shaft 7 , and the outer rings of the two bearings 10 are respectively fixedly connected to the valve body 3 .

[0029] The upper end of the valve body 3 is provided with a filling material inlet 11 for introducing the filling material into the cleaning installation chamber 9 , and the lower end of the valve body 3 is provided with at least one filling material outlet 12 .

[0030] The line connecting the central axes of the two fixing holes in the same group of fixing holes intersects with the central axis of the rotating shaft 7 .

[0031] The valve closing member 2 includes a blind plate 13, a first sealing ring and two first sealing gaskets. The two first sealing gaskets are fixedly mounted on both ends of the blind plate 13. The first sealing ring is sleeved on the outer wall of the blind plate 13. The first sealing ring is respectively in compression contact with the outer wall of the blind plate 13 and the inner wall of the fixing hole. The inner diameter of the fixing hole is not larger than the inner diameter of the pipe 6. The first sealing gaskets are respectively in compression contact with one end of the blind plate 13 and the opening of the pipe 6.

[0032] The valve opening member 1 includes a perforated plate 14, a second sealing ring and two second sealing gaskets. The two second sealing gaskets are fixedly mounted on both ends of the perforated plate 14. The second sealing ring is sleeved on the outer wall of the perforated plate 14. The second sealing ring is respectively in compression contact with the outer wall of the perforated plate 14 and the inner wall of the fixed hole. The inner diameter of the fixed hole is not larger than the inner diameter of the pipe 6. The second sealing gaskets are respectively in compression contact with one end of the perforated plate 14 and the opening of the pipe 6.

[0033] The switching control assembly also includes a sealing assembly, which is used to seal between the valve plate 8, the valve body 3, and the pipe 6. The sealing assembly includes two seals, one for sealing between one side of the valve plate 8, the valve body 3, and the pipe 6. The seal includes a sealing circular tube 15 and at least three sets of third sealing rings 16. The sealing circular tube 15 is mounted on the pipe 6. The three sets of third sealing rings 16 are respectively used to seal between the inner wall, outer wall, and first end of the sealing circular tube 15, the outer wall of the pipe 6, the inner wall of the first mounting hole 4 of the valve body 3, and the valve plate 8. Each set of third sealing rings 16 includes at least one third sealing ring 16, and the third sealing ring 16 is a standard O-ring. The mounting chamber 9 is filled with a sealing gas, the pressure of which is greater than the pressure in the pipe 6.

[0034] The sealing circular tube 15 is sleeved on the pipe 6, and the inner wall of the sealing circular tube 15 contacts the outer wall of the pipe 6 and is sealed by a group of third sealing rings 16 to prevent gas leakage in the pipe 6; the outer wall of the sealing circular tube 15 contacts the inner wall of the first mounting hole 4 of the valve body 3 and is sealed by a group of third sealing rings 16 to prevent gas in the valve body 3 from leaking out of the valve body 3; the first end of the sealing circular tube 15 contacts the valve plate 8 and is sealed by a group of third sealing rings 16 to prevent gas in the pipe 6 from leaking into the valve body 3 through the valve plate 8.

[0035] The working principle of the utility model rotary gate valve is as follows:

[0036] When it is necessary to open the valve, the valve plate 8 can be rotated by rotating the rotating shaft 7, and the pre-installed valve opening member 1 can be rotated to the first mounting hole 4. After the valve opening member 1 is aligned with the first mounting hole 4 of the valve body 3, the valve is opened and the two pipes 6 are connected.

[0037] When it is necessary to close the valve, the valve plate 8 can be rotated by rotating the rotating shaft 7, and the pre-installed valve closing member 2 can be rotated to the first mounting hole 4. After the valve closing member 2 is aligned with the first mounting hole 4 of the valve body 3, the valve is closed, blocking the flow of medium between the two pipes 6.

[0038] When the valve needs to be repaired and maintained, the installation chamber 9 of the valve body 3 is cleaned through the filling material inlet 11 and the filling material outlet 12, and samples are taken for inspection. After confirming safety, when repair and cleaning are carried out, the second installation hole 5 is used as an inspection port. By opening the inspection port, the corresponding position can be inspected, maintained or replaced.

[0039] This valve is easy to repair and maintain during production. After switching the valve, dirt stuck in the valve installation chamber 9 can be easily cleaned and the seals can be inspected. If a seal is found to be unqualified, the seal can be replaced without affecting normal industrial production. At the same time, this valve can ensure that the pipes 6 before and after the valve are completely connected after the valve is opened, without affecting other equipment to clean dust and dirt inside the pipe 6.

[0040] This valve is provided with a sealing component at the contact position between the valve plate 8 and the pipeline 6 to ensure that the material in the pipeline 6 does not leak.

[0041] The valve's pipeline 6, valve plate 8, and the sealing assembly between them are completely contained within a sealed housing. The valve plate 8 is rotatable by a shaft 7, which is fitted with a seal to ensure a seal between the shaft 7 and the valve body 3. The valve body 3 can be filled with a fully displacing substance at a pressure higher than that of the pipeline 6 to prevent leakage.

[0042] For gas or liquid pipelines 6 that are harmful to the human body, this valve can also be opened and closed through the filler inlet and outlet, which facilitates the cleaning of the valve itself and maintains the safety of maintenance personnel.

[0043] The technical solution of the present invention is not limited to the above-mentioned specific embodiments. Any technical deformation made according to the technical solution of the present invention falls within the protection scope of the present invention.

Claims

1. Rotary gate valve, characterized in that, include: At least one set of switch valve assemblies; each set of switch valve assemblies includes an opening valve component and a closing valve component; The valve body is provided with at least one set of mounting holes, each set of mounting holes is used for the detachable installation of a set of switch valve assemblies, and each set of mounting holes includes a first mounting hole and a second mounting hole, wherein both ends of the first mounting hole are respectively connected to the two pipes; Switching control component; the switching control component is used to switch the position of the switch valve assembly. When the valve is opened, the valve opening component is located in the first mounting hole, and the two pipes are connected. When the valve is closed, the valve closing component is located in the first mounting hole, blocking the flow of medium between the two pipes.

2. The rotary gate valve according to claim 1, characterized in that: The switching control component includes a rotating shaft and a valve plate. An installation chamber is provided in the valve body, and the valve plate is installed in the installation chamber. At least one group of fixing holes is provided on the valve plate, and each group of fixing holes includes two fixing holes. The valve opening component and the valve closing component can be removably installed in the two fixing holes respectively. A connecting hole is provided on the valve plate, and the rotating shaft is fixedly installed in the connecting hole. The two ends of the rotating shaft can be rotatably installed in the installation chamber respectively.

3. The rotary gate valve according to claim 2, characterized in that: The switching control assembly further includes two bearings, the inner rings of the two bearings are both sleeved on the rotating shaft, and the outer rings of the two bearings are respectively fixedly connected to the valve body.

4. The rotary gate valve according to claim 2 or 3, characterized in that: The upper end of the valve body is provided with a filling material inlet for introducing the cleaning installation chamber, and the lower end of the valve body is provided with at least one filling material outlet.

5. The rotary gate valve according to claim 2 or 3, characterized in that: A line connecting the central axes of two fixing holes in the same group of fixing holes intersects with the central axis of the rotating shaft.

6. The rotary gate valve according to claim 2 or 3, characterized in that: The valve closing component includes a blind plate, a first sealing ring and two first sealing gaskets. The two first sealing gaskets are respectively fixedly installed at both ends of the blind plate. The first sealing ring is sleeved on the outer wall of the blind plate. The first sealing ring is respectively in compression contact with the outer wall of the blind plate and the inner wall of the fixing hole. The inner diameter of the fixing hole is not larger than the inner diameter of the pipeline. The first sealing gaskets are respectively in compression contact with one end of the blind plate and the opening of the pipeline.

7. The rotary gate valve according to claim 1, characterized in that: The valve opening component includes an orifice plate, a second sealing ring and two second sealing gaskets. The two second sealing gaskets are respectively fixedly installed at both ends of the orifice plate. The second sealing ring is sleeved on the outer wall of the orifice plate. The second sealing ring is respectively in compression contact with the outer wall of the orifice plate and the inner wall of the fixed hole. The inner diameter of the fixed hole is not larger than the inner diameter of the pipeline. The second sealing gaskets are respectively in compression contact with one end of the orifice plate and the opening of the pipeline.

8. The rotary gate valve according to claim 3, characterized in that: The switching control component also includes a sealing component, which is used for sealing between the valve plate, the valve body and the pipeline. The sealing component includes two seals, one seal is used for sealing between one side of the valve plate and the valve body and the pipeline; the seal includes a sealing circular tube and at least three groups of third sealing rings, the sealing circular tube is sleeved on the pipeline, and the three groups of third sealing rings are respectively used for sealing between the inner wall, the outer wall and the first end of the circular tube and the outer wall of the pipeline, the inner wall of the first mounting hole of the valve body and the valve plate, and each group of third sealing rings includes at least one third sealing ring.

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