Sealing leakage-proof device for feed opening of powder bin

Abstract

The sealing and leakage-proof device comprises the powder bin, a material receiving pipe is arranged below the powder bin, an outer edge plate of a pipe opening is inserted into the inner top of a pipe head and located above a first sealing rubber ring gasket, and two sealing strips are embedded into a first annular gasket groove and a second annular gasket groove respectively. The second sealing rubber ring gasket is located between the first connecting plate and the second connecting plate, the second sealing rubber ring gasket, the first connecting plate and the second connecting plate are detachably connected through bolt assemblies, and after connection and fastening, the first connecting plate and the second connecting plate clamp the second sealing rubber ring gasket to form outer layer sealing; the bottom of the pipe opening outer edge plate is pressed on the top of the first sealing rubber ring gasket, the bottom of the first sealing rubber ring gasket is pressed on the top of the inner edge plate, and the first sealing rubber ring gasket and the inner edge plate extrude the first sealing rubber ring gasket to form internal sealing. The sealing strip at the top of the first sealing rubber ring gasket is embedded into the first annular gasket groove of the pipe opening outer edge plate, and the sealing strip at the bottom of the first sealing rubber ring gasket is embedded into the second annular gasket groove of the inner edge plate.

Description

Technical Field

[0001] This utility model relates to the field of equipment sealing technology, and in particular to a sealing and leak-proof device for the discharge port of a powder silo. Background Technology

[0002] The discharge port of the powder silo is usually connected to the inlet of other equipment. The connected ports are connected by flanges. The sealing gaskets installed between the flanges can seal the gaps between the flanges and prevent the powder from leaking out from the gaps.

[0003] In the process of implementing this solution, the inventors discovered the following problems in the existing technology that have not been well resolved: Traditional sealing only uses a single layer of rubber sealing ring or sealing gasket for sealing. Although it has a certain sealing effect, the vibration generated when the powder is discharged from the silo acts on the single layer of sealing material for a long time and frequently, which will greatly reduce the sealing effect. In the long run, the problem of insufficient sealing will still occur. Utility Model Content

[0004] The main purpose of this utility model is to provide a sealing and leak-proof device for the discharge port of a powder silo, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A sealing and leak-proof device for the discharge port of a powder silo includes a powder silo, a receiving pipe disposed below the powder silo, a sealing rubber gasket II disposed between the powder silo and the receiving pipe, the powder silo including a tank, an outer edge plate of the pipe opening fixed to the bottom outer wall of the tank, an annular gasket groove being carved at the bottom of the outer edge plate, a connecting plate being fixed to the outer wall of the tank above the outer edge plate, the connecting plate having several plate holes, the receiving pipe including a pipe head, an inner edge plate fixed to the top of the pipe head, an annular gasket groove being carved at the top of the inner edge plate, a sealing rubber gasket II disposed at the top of the inner edge plate, sealing strips being disposed at the top and bottom of the sealing rubber gasket II, a connecting plate II fixed to the outer wall of the top of the pipe head, plate holes II being carved at the positions of the plate holes I on the connecting plate II, and gasket holes being carved at the positions of the plate holes I and II on the sealing rubber gasket II.

[0007] Preferably, a plurality of bolt assemblies are provided between the first connecting plate, the gasket hole, and the second connecting plate, and the bolt assemblies are respectively connected through the first plate hole of the first connecting plate, the gasket hole of the second sealing rubber ring gasket, and the second plate hole of the second connecting plate.

[0008] Preferably, the outer edge plate of the pipe opening is inserted into the top of the pipe head and is located above the sealing rubber gasket. The sides of the outer edge plate and the inner edge plate of the pipe opening that are close to each other are in bottom contact with the top of the sealing rubber gasket.

[0009] Preferably, the sides of the connecting plate one and the connecting plate two that are close to each other are in contact with the top and bottom of the sealing rubber ring gasket two, respectively.

[0010] Preferably, the sealing rubber ring and the sealing strip are integral, the sealing strip on the top of the sealing rubber ring is embedded in the annular groove, and the size of the sealing strip matches the size of the annular groove.

[0011] Preferably, the sealing strip at the bottom of the sealing rubber ring is embedded inside the annular groove, and the size of the sealing strip matches the size of the annular groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The outer edge plate of the pipe opening is inserted into the top of the pipe head and sits above the first sealing rubber gasket. Two sealing strips are respectively embedded in the inner and outer annular grooves. The second sealing rubber gasket is located between the first and second connecting plates. The second sealing rubber gasket, the first connecting plate, and the second connecting plate are detachably connected by bolt assemblies. When the connection is tightened, the first and second connecting plates clamp the second sealing rubber gasket to form an outer seal. The bottom of the outer edge plate of the pipe opening presses against the top of the first sealing rubber gasket, while the bottom of the first sealing rubber gasket presses against the top of the inner edge plate. The compression of the first sealing rubber gasket by both forms an inner seal. The sealing strip at the top of the first sealing rubber gasket is embedded in the first annular groove of the outer edge plate of the pipe opening, while the sealing strip at the bottom of the first sealing rubber gasket is embedded in the second annular groove of the inner edge plate, forming a sandwich seal. The resulting three-layer seal can achieve a better sealing effect during material feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a powder silo discharge port sealing and leak-proof device according to the present invention;

[0015] Figure 2 This is a partial exploded view of the sealing and leak-proof device for the discharge port of a powder silo according to the present invention;

[0016] Figure 3 This is a bottom view of the outer edge plate and connecting plate of the powder silo discharge port sealing and leak-proof device according to the present invention.

[0017] Figure 4 This is a cross-sectional view of the sealing rubber ring gasket of the powder silo discharge port sealing and leak prevention device of this utility model on the inner edge plate.

[0018] In the diagram: 1. Powder silo; 11. Silo; 12. Outer edge plate of pipe opening; 13. Annular groove one; 14. Connecting plate one; 15. Plate hole one; 2. Receiving pipe; 21. Pipe head; 22. Inner edge plate; 23. Annular groove two; 24. Connecting plate two; 25. Plate hole two; 3. Sealing rubber ring gasket one; 31. Sealing strip; 4. Sealing rubber ring gasket two; 41. Gasket hole. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-4 As shown, a sealing and leak-proof device for the discharge port of a powder silo includes a powder silo 1, a receiving pipe 2 disposed below the powder silo 1, and a sealing rubber gasket 4 between the powder silo 1 and the receiving pipe 2. The powder silo 1 includes a tank 11, and an outer edge plate 12 of the pipe opening is fixed to the bottom outer wall of the tank 11. An annular groove 13 is chiseled at the bottom of the outer edge plate 12. A connecting plate 14 is fixed to the outer wall of the tank 11 above the outer edge plate 12. Several plate holes 15 are chiseled on the connecting plate 14 for receiving materials. The pipe 2 includes a pipe head 21. An inner edge plate 22 is fixed to the top of the inner edge plate 21. An annular groove 23 is carved on the top of the inner edge plate 22. A sealing rubber ring gasket 3 is provided on the top of the inner edge plate 22. A sealing strip 31 is provided on the top and bottom of the sealing rubber ring gasket 3. A connecting plate 24 is fixed to the outer wall of the top of the pipe head 21. A plate hole 25 is carved on the connecting plate 24 at the position of the plate hole 15. A gasket hole 41 is carved on the sealing rubber ring gasket 4 at the positions of the plate hole 15 and the plate hole 25.

[0021] Specifically, several bolt assemblies are provided between connecting plate 14, gasket hole 41 and connecting plate 24. The bolt assemblies are respectively connected to the plate hole 15 of connecting plate 14, the gasket hole 41 of sealing rubber gasket 24 and the plate hole 25 of connecting plate 24. The sides of connecting plate 14 and connecting plate 24 that are close to each other are in contact with the top and bottom of sealing rubber gasket 24 to form an outer seal and ensure sealing performance.

[0022] Specifically, the outer edge plate 12 of the pipe opening is inserted into the top of the pipe head 21 and is located above the sealing rubber gasket 3. The sides of the outer edge plate 12 and the inner edge plate 22 that are close to each other are in bottom contact with the top of the sealing rubber gasket 3 to form an inner seal and increase the sealing performance.

[0023] Specifically, the sealing rubber ring gasket 3 and the sealing strip 31 are integrated. The sealing strip 31 at the top of the sealing rubber ring gasket 3 is embedded inside the annular groove 13, and the size of the sealing strip 31 matches the size of the annular groove 13. The sealing strip 31 at the bottom of the sealing rubber ring gasket 3 is embedded inside the annular groove 23, and the size of the sealing strip 31 matches the size of the annular groove 23, forming a sandwich seal, which further enhances the sealing effect.

[0024] Working principle:

[0025] The outer edge plate 12 of the pipe is inserted into the top of the pipe head 21 and sits above the sealing rubber gasket 3. Two sealing strips 31 are respectively embedded in the interior of the annular groove 13 and the annular groove 23. The sealing rubber gasket 24 is located between the connecting plate 14 and the connecting plate 24. The sealing rubber gasket 24, the connecting plate 14, and the connecting plate 24 are detachably connected by a bolt assembly. When the connection is tightened, the connecting plate 14 and the connecting plate 24 clamp the sealing rubber gasket 24 to form an outer seal. The bottom of the outer edge plate 12 presses against the top of the sealing rubber gasket 3, while the bottom of the sealing rubber gasket 3 presses against the top of the inner edge plate 22. The compression of the sealing rubber gasket 3 by the two forms an internal seal. The sealing strip 31 at the top of the sealing rubber gasket 3 is embedded in the annular groove 13 of the outer edge plate 12, while the sealing strip 31 at the bottom of the sealing rubber gasket 3 is embedded in the annular groove 23 of the inner edge plate 22, forming a sandwich seal. The three-layer seal formed can achieve a better sealing effect when the material is discharged.

[0026] The circuits, electronic components, and control modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A powder bin outlet sealing leakage prevention device, comprising a powder bin (1), characterized in that: The powder bin (1) is provided below with a receiving pipe (2), and a sealing rubber ring pad two (4) is arranged between the powder bin (1) and the receiving pipe (2). The powder bin (1) comprises a bin tank (11), the bottom outer wall of the bin tank (11) is fixed with a pipe mouth outer edge plate (12), the bottom of the pipe mouth outer edge plate (12) is dug with an annular pad groove one (13), the outer wall of the bin tank (11) at the position above the pipe mouth outer edge plate (12) is fixed with a connecting plate one (14), a plurality of plate holes one (15) are dug on the connecting plate one (14), the receiving pipe (2) comprises a pipe head (21), the inner top end of the pipe head (21) is fixed with an inner edge plate (22), the top of the inner edge plate (22) is dug with an annular pad groove two (23), the top of the inner edge plate (22) is provided with a sealing rubber ring pad one (3), the top and bottom of the sealing rubber ring pad one (3) are provided with sealing strips (31), the outer wall of the top end of the pipe head (21) is fixed with a connecting plate two (24), the connecting plate two (24) at the positions of the plate holes one (15) are dug with plate holes two (25), the sealing rubber ring pad two (4) at the positions of the plate holes one (15) and the plate holes two (25) are dug with pad holes (41).

2. The powder bin outlet sealing device according to claim 1, characterized in that: A plurality of bolt assemblies are arranged between the connecting plate one (14), the pad hole (41) and the connecting plate two (24), and the bolt assemblies are respectively in penetrating communication with the plate holes one (15) of the connecting plate one (14), the pad holes (41) of the sealing rubber ring pad two (4) and the plate holes two (25) of the connecting plate two (24).

3. The powder bin outlet sealing device according to claim 1, characterized in that: The pipe mouth outer edge plate (12) is inserted into the inner top part of the pipe head (21) and above the sealing rubber ring pad one (3), and the sides close to each other of the pipe mouth outer edge plate (12) and the inner edge plate (22) respectively touch the top and bottom of the sealing rubber ring pad one (3).

4. The powder bin outlet sealing device according to claim 1, characterized in that: The sides close to each other of the connecting plate one (14) and the connecting plate two (24) respectively touch the top and bottom of the sealing rubber ring pad two (4).

5. The powder bin outlet sealing device according to claim 1, characterized in that: The sealing rubber ring pad one (3) and the sealing strip (31) are integrated, the sealing strip (31) at the top of the sealing rubber ring pad one (3) is embedded in the inner part of the annular pad groove one (13), and the size of the sealing strip (31) matches the size of the annular pad groove one (13).

6. The powder bin outlet sealing device according to claim 1, characterized in that: The sealing strip (31) at the bottom of the sealing rubber ring pad one (3) is embedded in the inner part of the annular pad groove two (23), and the size of the sealing strip (31) matches the size of the annular pad groove two (23).

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