A vacuum baffle valve

Abstract

This utility model belongs to the technical field of powder feeding equipment, specifically relating to a vacuum baffle valve, including a valve body and a cylinder. The valve body has an internal cavity, with a feeding part on the upper surface and a discharging part on the lower surface. A first end plate and a second end plate are respectively provided on both sides of the valve body, both of which are sealed to the valve body. The cylinder is mounted on the second end plate, which has a through hole through which the piston rod of the cylinder enters and exits the valve body cavity. A guide plate is provided at the top of the piston rod. The vacuum baffle valve of this application is suitable for vacuum scenarios and is mainly used for installation upstream of a vacuum ball valve to prevent material from wearing the valve core of the vacuum ball valve, thereby extending the service life of the vacuum ball valve.

Description

Technical Field

[0001] This utility model relates to the technical field of powder feeding equipment, and specifically to a vacuum baffle valve. Background Technology

[0002] Vacuum conveying technology is required in many industrial production processes, especially in the chemical, pharmaceutical, and food industries, where powdery and granular materials often need to be transported in a vacuum-sealed environment. Vacuum conveying systems typically include components such as vacuum pumps, conveying pipelines, and valves. Valves control the flow of materials within the system and directly affect the system's sealing performance and service life.

[0003] Currently, vacuum ball valves are widely used as control valves in vacuum conveying systems. However, during the actual operation of vacuum ball valves, material tends to accumulate on the surface of the valve core. When the ball valve is operated, the accumulated material can easily wear down the valve core, damaging it and shortening the lifespan of the vacuum ball valve. Therefore, this application aims to provide a vacuum baffle valve that can be used in conjunction with a vacuum ball valve to protect the valve core of the vacuum ball valve and prevent material from damaging it. Utility Model Content

[0004] The purpose of this invention is to address some shortcomings of existing technologies by providing a vacuum baffle valve that can protect vacuum ball valves, prevent wear between the valve core and the material, and significantly extend the service life of vacuum ball valves.

[0005] The technical solution of this utility model is: a vacuum baffle valve, including a valve body and a cylinder. The valve body has an internal cavity, a feeding part is provided on the upper surface of the valve body, and a discharging part is provided on the lower surface of the valve body. A first end plate and a second end plate are respectively provided on both sides of the valve body. The first end plate and the second end plate are both sealed to the valve body. The cylinder is mounted on the second end plate. A through hole is provided on the second end plate. The piston rod of the cylinder enters and exits the internal cavity of the valve body through the through hole. An insert plate is provided in the internal cavity of the valve body, and the insert plate is connected to the top end of the piston rod.

[0006] Furthermore, the feeding section includes a flange plate and a pipe body located below the flange plate. The insert plate can reciprocate along the guide rail inside the valve body under the action of the cylinder to close or open the lower outlet of the pipe body.

[0007] Furthermore, the unloading section is funnel-shaped and corresponds vertically to the position of the feeding section.

[0008] Furthermore, the diameter of the opening at the top of the unloading section is larger than the diameter of the feed section tube, so that the material falling from the tube can be completely caught.

[0009] Furthermore, a flange is provided at the lower end of the feeding section, which can be connected to a vacuum ball valve.

[0010] Furthermore, a sealing assembly is provided on the outer side of the second end plate. The sealing assembly is used to provide a sealing function, keeping the through hole position on the second end plate sealed when the piston rod is working, so as to prevent leakage in the valve body cavity.

[0011] Furthermore, a cylinder fixing plate is provided on the side of the sealing assembly away from the second end plate; the cylinder is fixed on the cylinder fixing plate.

[0012] Furthermore, the sealing assembly includes multiple sealing rings, such as lip seals.

[0013] Furthermore, the feeding section is sealed to the vacuum container; the unloading section is connected to the vacuum ball valve.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: The vacuum baffle valve in this application is suitable for vacuum scenarios and is mainly used to be installed upstream of the vacuum ball valve. When the material is discharged, the vacuum ball valve is opened first, and then the baffle valve of this application is opened; when the material is discharged, the baffle valve of this application is closed first, and then the vacuum ball valve is closed. In this way, the material will not come into contact with the valve core of the vacuum ball valve, thereby avoiding wear on the valve core of the vacuum ball valve by the material and extending the service life of the vacuum ball valve. Attached Figure Description

[0015] Figure 1 This is a perspective view of Embodiment 1 of the present utility model; Figure 2 This is a cross-sectional schematic diagram of Embodiment 1 of this utility model; In the diagram: 1. Valve body; 2. First end plate; 3. Second end plate; 4. Insert plate; 5. Feed section; 51. Pipe body; 52. Flange plate; 6. Discharge section; 7. Sealing assembly; 8. Cylinder; 9. Cylinder fixing plate. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to specific embodiments. Methods or functional components not specifically described in the embodiments are all prior art. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Example

[0017] like Figure 1-2As shown, this embodiment is a vacuum baffle valve, including a valve body 1 and a cylinder 8. The valve body 1 has an internal cavity. A feed part 5 is provided on the upper surface of the valve body 1, and a discharge part 6 is provided on the lower surface of the valve body 1. A first end plate 2 and a second end plate 3 are respectively provided on both sides of the valve body 1. The first end plate 2 and the second end plate 3 are both sealed to the valve body 1. The cylinder 8 is mounted on the second end plate 3. A through hole is provided on the second end plate 3. The piston rod of the cylinder 8 enters and exits the inner cavity of the valve body 1 through the through hole. An insert plate 4 is provided at the top of the piston rod.

[0018] In this embodiment, the feeding section 5 includes a flange plate 52 and a pipe body 51 located below the flange plate 52. The insert plate 4 can reciprocate along the guide rail inside the valve body 1 under the action of the cylinder 8, thereby closing or opening the lower outlet of the pipe body 51. The discharging section 6 is funnel-shaped and corresponds vertically to the feeding section 5. The diameter of the upper opening of the discharging section 6 is larger than the diameter of the pipe body 51 of the feeding section 5. This allows it to completely catch the material falling from the pipe body 51. A flange is provided at the lower end of the discharging section 6, which can be connected to a vacuum ball valve.

[0019] In this embodiment, a sealing assembly 7 is provided on the outer side of the second end plate 3, and the sealing assembly 7 includes multiple sealing rings; the sealing assembly 7 is used to provide a sealing function, keeping the through hole on the second end plate 3 sealed when the piston rod is working. A cylinder 8 fixing plate 9 is provided on the side of the sealing assembly 7 away from the second end plate 3; the cylinder 8 is fixed on the cylinder 8 fixing plate 9.

[0020] In practical use, the vacuum valve of this embodiment can be sealed to the vacuum tank via the flange 52 of the feed section 5; the flange of the discharge section 6 is connected to the vacuum ball valve. The material is filled above the feed section 5, and the vacuum tank is evacuated. When material needs to be discharged under vacuum conditions, the vacuum ball valve is opened first, and then the cylinder 8 drives the slide plate 4 to move laterally along the guide rail inside the valve body 1 to open the lower outlet of the tube 51, allowing the material to fall from the tube 51. When the discharge is finished, the cylinder 8 controls the slide plate 4 to move to block the lower outlet of the tube 51, and then the vacuum ball valve is closed. In this way, the material will not come into contact with the valve core of the vacuum ball valve during the flow process, thereby avoiding wear on the valve core of the vacuum ball valve and extending the service life of the vacuum ball valve.

[0021] The above are only some embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various combinations and modifications of the aforementioned technical features. Any improvements, modifications, equivalent substitutions, or applications of the structure or method of the present utility model to other fields to achieve the same effect without departing from the spirit and scope of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A vacuum baffle valve, comprising a valve body and a cylinder, characterized in that: The valve body has an internal cavity, a feeding part is provided on the upper surface of the valve body, and a discharging part is provided on the lower surface of the valve body. A first end plate and a second end plate are respectively provided on both sides of the valve body. The first end plate and the second end plate are both sealed to the valve body. The cylinder is mounted on the second end plate. A through hole is provided on the second end plate. The piston rod of the cylinder enters and exits the valve body cavity through the through hole. An insert plate is provided in the valve body cavity, and the insert plate is connected to the top of the piston rod.

2. The vacuum baffle valve according to claim 1, characterized in that: The feeding section includes a flange plate and a pipe body located below the flange plate. The insert plate reciprocates under the action of a cylinder to close or open the lower outlet of the pipe body.

3. The vacuum baffle valve according to claim 1, characterized in that: The feeding section is funnel-shaped and corresponds vertically to the feeding section.

4. The vacuum baffle valve according to claim 3, characterized in that: The diameter of the opening at the upper end of the unloading section is larger than the diameter of the feed section tube.

5. The vacuum baffle valve according to claim 4, characterized in that: A flange is provided at the lower end of the feeding section.

6. The vacuum baffle valve according to claim 1, characterized in that: A sealing assembly is provided on the outer side of the second end plate. The sealing assembly is used to provide a sealing function, so that the through hole on the second end plate remains sealed when the piston rod is working.

7. The vacuum baffle valve according to claim 6, characterized in that: A cylinder fixing plate is provided on the side of the sealing assembly away from the second end plate; the cylinder is fixed on the cylinder fixing plate.

8. The vacuum baffle valve according to claim 6, characterized in that: The sealing assembly includes multiple sealing rings.

9. The vacuum baffle valve according to claim 1, characterized in that: The feeding section is sealed to the vacuum container.

10. The vacuum baffle valve according to claim 1, characterized in that: The feeding section is connected to a vacuum ball valve.

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