Air cushion conveyor seal

Abstract

This utility model discloses a sealing structure for an air cushion conveyor, relating to the technical field of air cushion conveyors. It includes an air box with an internal air chamber. Flange connecting plates are installed at both the front and rear ends of the air box. A sealing gasket is installed at the front end of the flange connecting plate, and a sealing plate is installed at the front end of the sealing gasket. A limit plate is installed at the front end of the sealing plate. Both the limit plate and the flange connecting plate are U-shaped. Several guide pillars are installed at the rear end of the limit plate, each passing through a through hole in the sealing plate, sealing gasket, and flange connecting plate. A pull plate is installed at the rear of the limit plate, and an electric push rod is installed at the rear of the pull plate. This utility model uses the electric push rod to pull the pull plate, which in turn moves the sealing plate towards the flange connecting plate. The sealing plate and flange connecting plate compress the sealing gasket, thus achieving a seal between the two ends of the air box. When the sealing plate needs to be replaced, the electric push rod is extended. Gasket replacement is convenient and quick.

Description

Technical Field

[0001] This utility model relates to the field of air cushion conveyor technology, specifically to a sealing structure for an air cushion conveyor. Background Technology

[0002] An air cushion conveyor is a belt conveyor that uses a thin air film to support the conveyor belt and the material on it. It replaces the idlers of a roller belt conveyor with perforated air chambers. When an air source supplies air with a certain pressure and flow rate into the air chamber, the air escapes through small holes in the chamber, forming a pressurized air film between the conveyor belt and the chamber, supporting the conveyor belt and the material above it. This transforms the spaced-at-a-gap idler support into a continuous air cushion support, changing the roller friction between the conveyor belt and the idlers into fluid friction between the conveyor belt and the chamber using air as the medium, thus reducing running resistance.

[0003] Currently, the air box of an air cushion conveyor is generally sealed by a flange and a gasket to ensure the airtightness of the air box. After long-term use, the gasket will age and corrode. When replacing the gasket, it is necessary to remove the bolts on the flange one by one, and then install the flange bolts one by one after replacing the gasket. The gasket replacement process is cumbersome, the gasket replacement efficiency is low, and it is inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a sealing structure for an air cushion conveyor that allows for quick replacement of the sealing gasket.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing structure for an air cushion conveyor, comprising an air box, an air cavity inside the air box, flange connecting plates installed at both the front and rear ends of the air box, a sealing gasket installed at the front end of the flange connecting plate, a sealing plate installed at the front end of the sealing gasket, a limiting plate installed at the front end of the sealing plate, both the limiting plate and the flange connecting plate being U-shaped, a plurality of guide posts installed at the rear end of the limiting plate, each guide post passing through the sealing plate, the sealing gasket and the flange connecting plate respectively via through holes, a pulling plate installed at the rear of the limiting plate, and an electric push rod installed at the rear of the pulling plate.

[0006] Preferably, several support plates are installed at both ends and the bottom of the limiting plate, and the number of pulling plates is three, which are collectively installed at the rear end of the several support plates.

[0007] Preferably, the plurality of support plates are arranged in a U-shape, and the sealing plate is located inside the plurality of support plates.

[0008] Preferably, pull rods are installed at the middle and both sides of the rear end of the pull plate. The pull rods on both sides are arranged obliquely and symmetrically. A connecting block is installed at one end of each of the three pull rods. The output end of the electric push rod is connected to the connecting block.

[0009] Preferably, the limiting plate has multiple reinforcing plates installed inside it.

[0010] Preferably, a control box is installed above the electric push rod, and a control board is installed on the surface of the control box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This application uses an electric push rod to pull the pull plate, which can drive the guide post on the limit plate to pass through the sealing plate and the flange connection plate. At the same time, the limit plate moves the sealing plate toward the flange connection plate. The sealing plate and the flange connection plate squeeze the sealing gasket, thereby achieving the sealing of both ends of the air box by the sealing plate. When the sealing plate needs to be replaced, the electric push rod can be extended. The replacement of the sealing gasket is convenient and quick.

[0013] 2. This application has a pull rod installed at the rear of the pull plate. The electric push rod pulls the pull plate through the connecting block and multiple pull rods, which makes it easy for the electric push rod to apply a uniform pulling force to the surface of the pull plate and avoid the pull plate being subjected to excessive local pulling force and thus deforming. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is the right view of the present invention;

[0016] Figure 3 This is a cross-sectional view of the limiting plate of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the limiting plate of this utility model.

[0018] In the diagram: 1. Air box; 2. Control panel; 3. Flange connection plate; 4. Sealing gasket; 5. Sealing plate; 6. Limiting plate; 7. Guide column; 8. Pull plate; 9. Electric push rod; 10. Support plate; 11. Pull rod; 12. Connecting block; 13. Reinforcing plate; 14. Control box. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 4 As shown, this embodiment includes an air box 1, which has an internal air chamber. High-pressure gas is continuously injected into the air box 1 to form an air cushion layer. This air cushion layer supports the conveyor belt, effectively reducing wear during operation. Flange connecting plates 3 are installed at both the front and rear ends of the air box 1. Multiple flange holes are provided on the flange connecting plates 3. A sealing gasket 4, made of rubber, is installed at the front end of the flange connecting plate 3 to ensure a tight seal at the connection. A sealing plate 5 is installed at the front end of the sealing gasket 4 to seal the front and rear ends of the air box 1, preventing gas leakage. A limiting plate 6 is installed at the front end of the sealing plate 5. The limiting plate 6 is used to limit the sealing plate 5 and fix the sealing plate 5. Both the limiting plate 6 and the flange connecting plate 3 are U-shaped. Several guide posts 7 are installed on the rear surface of the limiting plate 6. The guide posts 7 pass through the sealing plate 5, the sealing gasket 4 and the flange connecting plate 3 through through holes. The guide posts 7 guide the movement of the limiting plate 6. A pull plate 8 is installed at the rear of the limiting plate 6. An electric push rod 9 is installed at the rear of the pull plate 8. The electric push rod 9 is used to drive the limiting plate 6 and fix the sealing plate 5.

[0021] Specifically, several support plates 10 are installed at both ends and the bottom of the limiting plate 6, and there are three pulling plates 8. The pulling plates 8 are installed together at the rear end of the several support plates 10, and the pulling plates 8 pull the limiting plate 6 through the support plates 10.

[0022] Furthermore, the multiple support plates 10 are arranged in a U-shape, and the sealing plate 5 is located inside the multiple support plates 10, which facilitates the alignment of the through holes on the sealing plate 5 and the holes on the flange connection plate 3, and makes it easier for the guide post 7 on the limiting plate 6 to pass through the sealing plate 5.

[0023] Furthermore, pull rods 11 are installed at the middle and both sides of the rear end of the pull plate 8. The pull rods 11 on both sides are arranged symmetrically at an angle. A connecting block 12 is installed at one end of each of the three pull rods 11. The output end of the electric push rod 9 is connected to the connecting block 12. The arrangement of the three pull rods 11 makes it easy for the electric push rod 9 to apply a uniform pulling force to the pull plate 8 through the connecting block 12 and the pull rods 11, thus avoiding the application of localized pulling force to the pull plate 8 and causing deformation of the pull plate 8.

[0024] Furthermore, multiple reinforcing plates 13 are installed inside the limiting plate 6. The reinforcing plates 13 can apply a uniform tensile force to the entire end face of the sealing plate 5, making it easier to move the sealing plate 5 as a whole smoothly.

[0025] Furthermore, a control box 14 is installed above the electric push rod 9, and a control board 2 is installed on the surface of the control box 14. The control box 14 is equipped with a control circuit. The electric push rods 9 on the same side can be controlled simultaneously through the control board 2, which facilitates the smooth movement of the limit plate 6.

[0026] The method of use in this embodiment is as follows: During installation, firstly, the sealing plate 5 is placed inside multiple support plates 10, then multiple guide posts 7 are inserted into the through holes on the sealing plate 5, and then the sealing gasket 4 is placed at the rear of the sealing plate 5. Similarly, multiple guide posts 7 are inserted through the through holes on the sealing gasket 4. Multiple electric push rods 9 are moved simultaneously by the control board 2 on the control box 14. The electric push rods 9 pull the pulling plate 8 through the connecting block 12 and the pull rod 11. The pulling plate 8 drives the limiting plate 6 and the sealing plate 5 to move towards the flange connecting plate 3 through the support plate 10. The sealing plate 5 and the flange connecting plate 3 compress the sealing gasket 4, thereby achieving the sealing of the sealing plate 5 to both ends of the air box 1. When the sealing gasket 4 needs to be replaced, simply control the electric push rod 9 to extend, remove the old sealing gasket 4, and install the new sealing gasket 4.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sealing structure for an air cushion conveyor, comprising an air box (1), characterized in that: The air box (1) has an air chamber inside. Flange connecting plates (3) are installed at both the front and rear ends of the air box (1). A sealing gasket (4) is installed at the front end of the flange connecting plate (3). A sealing plate (5) is installed at the front end of the sealing gasket (4). A limiting plate (6) is installed at the front end of the sealing plate (5). The limiting plate (6) and the flange connecting plate (3) are both U-shaped. Several guide posts (7) are installed at the rear end of the limiting plate (6). The guide posts (7) pass through the sealing plate (5), the sealing gasket (4) and the flange connecting plate (3) through through holes respectively. A pull plate (8) is installed at the rear of the limiting plate (6). An electric push rod (9) is installed at the rear of the pull plate (8).

2. The sealing structure for the air cushion conveyor according to claim 1, characterized in that: The limiting plate (6) has several support plates (10) installed at both ends and at the bottom. There are three pull plates (8), and the pull plates (8) are installed together at the rear end of the several support plates (10).

3. The sealing structure for the air cushion conveyor according to claim 2, characterized in that: The multiple support plates (10) are arranged in a U-shape, and the sealing plate (5) is located inside the multiple support plates (10).

4. The sealing structure for the air cushion conveyor according to claim 2, characterized in that: Pull rods (11) are installed at the middle and both sides of the rear end of the pull plate (8). The pull rods (11) on both sides are arranged symmetrically and inclined. A connecting block (12) is installed at one end of each of the three pull rods (11). The output end of the electric push rod (9) is connected to the connecting block (12).

5. The sealing structure for the air cushion conveyor according to claim 1, characterized in that: The limiting plate (6) has multiple reinforcing plates (13) installed inside.

6. The sealing structure for the air cushion conveyor according to claim 1, characterized in that: A control box (14) is installed above the electric push rod (9), and a control board (2) is installed on the surface of the control box (14).

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