Sealing device for preventing liquid from overflowing and air expansion

Abstract

The utility model relates to the technical field of sealing devices, and discloses a sealing device for preventing liquid from overflowing and air expansion, which mainly comprises a flange seat on the outer side of a shaft, a sealing mechanism positioned between the shaft and the flange seat, and a flange plate and a scraper side plate in the flange seat. The side wall of the sealing mechanism is provided with a V-shaped groove, the V-shaped groove and the inner wall form a Y-shaped cross section, the sealing device expands outwards through liquid extrusion, the gap between the sealing device and a shaft is reduced, and the sealing effect is enhanced. The sealing mechanism is designed between the shaft and the flange seat, the Y-shaped sealing device is expanded outwards under the extrusion action of liquid in the device, the gap between the sealing device and the shaft is reduced, the sealing performance is improved, and the liquid can be temporarily prevented from flowing in the rotating process of the shaft, so that the problem of liquid leakage is effectively prevented. The anti-overflow device is suitable for various application scenes, such as a scraper conveyor and the like, needing to prevent liquid from overflowing, and has better universality and adaptability.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing devices, in particular to a sealing device for preventing liquid from overflowing and gas swelling. Background Art

[0002] Scraper conveyors, also known as "scraper conveyors," operate by removing organic waste from the equipment through chains that drive scrapers, thereby eliminating the need for waste to accumulate inside the equipment.

[0003] When the existing device is in operation, the motor drives the gear, the gear drives the chain, and the chain drives the shaft to rotate. During rotation, due to the presence of lubricating liquid near the shaft, liquid leakage is likely to occur during movement. In order to solve the above problem, a sealing device can be designed to prevent liquid from overflowing and air swelling. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the utility model provides a sealing device for preventing liquid from overflowing and gas swelling, which includes a flange seat installed on the outside of the shaft, and a sealing mechanism is arranged between the shaft and the flange seat. The side wall of the sealing mechanism is provided with a V-shaped groove, and the V-shaped groove and the inner wall of the sealing mechanism form a Y-shaped cross-section.

[0005] Furthermore, a threaded hole is provided in the middle of the flange seat, and a threaded straight-through pipe joint is connected in the threaded hole.

[0006] Furthermore, a flange is fixedly connected to the inner side of the flange seat, and a scraper side plate with a hole is fixedly connected to the inner side of the flange.

[0007] Furthermore, the shaft is connected with a flange, and the shaft is installed on the side plate of the scraper through the flange. The side plate is provided with a through hole for installing the flange.

[0008] The beneficial effects achieved by the utility model are:

[0009] First, the present invention designs a sealing mechanism between the shaft and the flange seat. The sidewall of the sealing mechanism is provided with a V-shaped groove, which forms a Y-shaped cross-section with the inner wall of the sealing mechanism. The squeezing effect of the liquid inside the device causes the Y-shaped sealing device to expand outward, reducing the gap between the sealing device and the shaft, improving the sealing performance, and temporarily blocking the flow of liquid during shaft rotation, thereby effectively preventing the occurrence of liquid leakage. External compressed air enters through the threaded straight-through pipe joint on the flange seat, and further squeezes the sealing device through the gas, further reducing the gap between the sealing device and the shaft and enhancing the sealing effect.

[0010] Second, the utility model is applicable to a variety of application scenarios that need to prevent liquid overflow, such as scraper conveyors, and has good versatility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural cross-sectional view of a sealing device proposed by the present invention for preventing liquid from overflowing and gas swelling;

[0012] Figure 2 This is a schematic diagram of the installation structure of a sealing device that prevents liquid from overflowing and gas from rising;

[0013] Figure 3 is a schematic diagram of the sealing mechanism;

[0014] Figure 4 yes Figure 3 sectional view of .

[0015] Numbers in the figure:

[0016] 1. Shaft; 2. Flange seat; 3. Threaded straight pipe joint; 4. Sealing mechanism; 5. Flange; 6. Scraper side plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] Reference Figure 1 The utility model provides a sealing device for preventing liquid from overflowing and gas from expanding, which includes a shaft 1 installed on a flange seat 2 on the outside of the shaft 1, a sealing mechanism 4 is provided between the shaft 1 and the flange seat 2, and the side wall of the sealing mechanism 4 is provided with a V-shaped groove, and the V-shaped groove and the inner wall of the sealing mechanism 4 form a Y-shaped cross-section. A threaded hole is provided in the middle of the flange seat 2, and a threaded straight-through pipe joint 3 is connected to the threaded hole. A flange 5 is fixedly connected to the inside of the flange seat 2, and a scraper side plate 6 with a hole is fixedly connected to the inside of the flange 5. The shaft 1 is connected to the flange 5, and the shaft 1 is installed on the side plate of the scraper through the flange 5. The side plate is provided with a through hole for installing the flange 5.

[0019] When the existing device is in operation, the motor drives the gear, the gear drives the chain, and the chain drives the shaft 1 to rotate. A lubricating liquid is provided between the shaft 1 and the sealing mechanism 4 of the device. During the rotation process, the lubricating liquid is squeezed to make the sealing mechanism 4 expand outward, so that the gap between the sealing device and the shaft 1 can be reduced, and the external compressed air enters through the threaded straight-through pipe joint 3 on the flange seat 2, and further squeezes the sealing device through the gas, thereby further reducing the gap between the sealing device and the shaft 1, thereby preventing liquid leakage during operation.

[0020] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A sealing device for preventing liquid from overflowing and gas swelling, comprising a shaft (1) and a flange seat (2) mounted on the outside of the shaft (1), characterized in that: A sealing mechanism (4) is provided between the shaft (1) and the flange seat (2), wherein a V-shaped groove is provided on a side wall of the sealing mechanism (4), and the V-shaped groove and the inner wall of the sealing mechanism (4) form a Y-shaped cross section.

2. The sealing device for preventing liquid from overflowing and gas swelling according to claim 1, characterized in that: A threaded hole is provided in the middle of the flange seat (2), and a threaded straight-through pipe joint (3) is connected in the threaded hole.

3. The sealing device for preventing liquid from overflowing and gas swelling according to claim 1, characterized in that: The shaft (1) is connected to a flange (5), and the shaft (1) is mounted on a scraper side plate (6) through the flange (5). The side plate is provided with a through hole for mounting the flange (5).

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