Mining explosion-proof air supply pipeline air valve

Abstract

The utility model provides a mining explosion-proof air supply pipeline air valve. The mining explosion-proof air supply pipeline air valve comprises an air valve body, a transmission mechanism, a mounting flange, a sealing gasket, a positioning ring, a sealing seat, a pressure spring, a reset spring, a limiting seat and a limiting ring. The transmission mechanism is installed at the top end of the air valve body and fixedly connected with the air valve body. The installation flanges are fixedly installed at the two ends of the air valve body through bolts. The sealing gasket is installed on the inner wall of one side of the air valve body, and the sealing gasket is connected with the air valve body in a welded mode. The positioning ring is installed on the inner wall of the air valve body and connected with the air valve body in a welded mode. The sealing seat is mounted on the inner wall of the positioning ring, and the sealing seat is connected with the positioning ring in an inserting manner; by improving the mining explosion-proof air supply pipeline air valve, the mining explosion-proof air supply pipeline air valve has the advantages of being reasonable in structural design, good in explosion-proof performance, high in safety performance and firm and stable in operation, and therefore the problems and defects of an existing device are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof air valves, and more specifically, to an explosion-proof air valve for an air supply duct used in a mine. Background Art

[0002] Air volume control valve, also known as air damper, is an indispensable central air conditioning terminal accessory in ventilation, air conditioning and air purification projects of industrial plants and civil buildings. It is generally used in air conditioning and ventilation system pipelines to adjust the air volume of branch pipes, and can also be used for mixing and adjusting fresh air and return air. Air volume control valve is widely used in HVAC systems of industrial and mining and civil buildings to accurately adjust the air flow, and is one of the key equipment to achieve control of ventilation modes in various environments.

[0003] Existing air volume regulating valves are widely used in industries and mines. When the dust or gas concentration in the pipe on one side of the air valve suddenly increases, if the air circulation in the air valve cannot be blocked in time, it is easy to cause dust explosion due to excessive dust density, causing major safety accidents. Therefore, an explosion-proof air supply duct air valve for mining is one of the technical problems that people need to solve.

[0004] In view of this, research and improvement are carried out on the existing problems, and a mine explosion-proof air supply duct air valve is provided, aiming to solve the problem and improve the practical value through this technology. Utility Model Content

[0005] The utility model aims to provide a mine explosion-proof air supply duct air valve to solve the problems and shortcomings raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides a mine explosion-proof air supply duct air valve, which is achieved by the following specific technical means:

[0007] A mine explosion-proof air supply duct air valve, comprising: an air valve body, a transmission mechanism, a mounting flange, a sealing gasket, a positioning ring, a sealing seat, a pressure spring, a reset spring, a limit seat, a limit ring, a valve plate, and a turntable; the transmission mechanism is mounted on the top of the air valve body, and the transmission mechanism is fixedly connected to the air valve body; the mounting flange is fixedly mounted on both ends of the air valve body by bolts; the sealing gasket is mounted on the inner wall of one side of the air valve body, and the sealing gasket is welded to the air valve body; the positioning ring is mounted on the inner wall of the air valve body, and the positioning ring is welded to the air valve body; the sealing seat It is installed on the inner wall of the positioning ring, and the sealing seat is plug-connected with the positioning ring; the pressure spring is installed on the outer wall on one side of the sealing seat, and the pressure spring is plug-connected with the sealing seat; the reset spring is installed inside the sealing seat, and the reset spring is plug-connected with the sealing seat; the limit seat is installed on the inner wall of the reset spring, and the limit seat is plug-connected with the reset spring; the limit ring is plug-connected on the upper part of the limit seat, and the limit ring is screwed and connected with the sealing seat; the valve plate is installed on the lower part of the transmission mechanism, and the valve plate is rotatably connected with the air valve body; the turntable is fixedly installed on one side of the transmission mechanism.

[0008] As a further optimization of the technical solution, the sealing gasket of the utility model of a mine explosion-proof air supply duct air valve is a circular ring structure, and the sealing gasket is welded and installed on the inner wall of one side of the air valve body as an integrated structure.

[0009] As a further optimization of the technical solution, a pressure spring is installed on one side of the sealing seat of a mine explosion-proof air supply duct air valve in the utility model, and the pressure spring is in a compressed state when not working, and the sealing seat can abut against one side of the sealing gasket through the pressure spring to form a hard sealing device.

[0010] As a further optimization of the technical solution, the utility model provides a mining explosion-proof air supply duct air valve, wherein the sealing seat is a cylindrical structure with a cross-section in the shape of the English letter "T", and a groove for installing a reset spring, a limit seat, and a limit ring is provided on the outer wall on one side of the sealing seat, and the grooves are distributed in a circular array at four locations on the outer wall on one side of the sealing seat.

[0011] As a further optimization of the technical solution, the limit seat of the utility model of a mine explosion-proof air supply duct air valve is a cylindrical structure in the shape of a mathematical symbol "+", and the bottom of the limit seat is installed in the groove on the outer wall of the sealing seat through a reset spring as a sliding device.

[0012] As a further optimization of the technical solution, the utility model provides a mining explosion-proof air supply duct air valve, wherein the positioning ring is a circular ring structure, and circular holes distributed in a circular array are provided on the positioning ring.

[0013] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] 1. The utility model has a sealing gasket with an annular structure, and the sealing gasket is welded and installed on the inner wall of one side of the air valve body as an integrated structure. A pressure spring is inserted and installed on one side of the sealing seat, and the pressure spring is in a compressed state when not in operation, and the sealing seat can abut against one side of the sealing gasket through the pressure spring to form a hard sealing device. The sealing seat can abut against one side of the sealing gasket through the pressure spring to form a hard sealing device, so that when the air concentration on one side of the air valve body changes to produce a pressure difference, the gas will impact one side of the sealing seat, causing the sealing seat to slide along the positioning ring, so that the sealing gasket abuts against the sealing seat and seals, effectively blocking the air flow in the air valve body and preventing the occurrence of explosions.

[0015] 2. The sealing seat of the utility model is a cylindrical structure with a cross-section in the shape of the English letter "T", and a groove for installing a reset spring, a limit seat, and a limit ring is provided on the outer wall of one side of the sealing seat, and the grooves are distributed in a circular array at four places on the outer wall of one side of the sealing seat. The limit seat is a cylindrical structure in the shape of a mathematical symbol "+", and the bottom of the limit seat is installed in the groove on the outer wall of the sealing seat through a reset spring. The sliding device is set, and four grooves for installing a reset spring, a limit seat, and a limit ring are provided on the outer wall of the sealing seat. The pressure spring can be compressed between the positioning ring and the sealing seat through the action of the limit seat, thereby improving the firmness and stability of the device connection.

[0016] 3. The positioning ring of the utility model is a circular ring structure, and the positioning ring is provided with circular holes distributed in a circular array. The circular holes distributed in a circular array on the positioning ring facilitate the air flow in the air valve body.

[0017] 4. The utility model improves a mine explosion-proof air supply duct air valve, has the advantages of reasonable structural design, good explosion-proof performance, strong safety performance, and firm and stable operation of the air valve, thereby effectively solving the problems and shortcomings of the existing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 This is a structural stereogram of a noise-reducing fan blade of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the motor fixing seat of the utility model;

[0021] Figure 3 A three-dimensional diagram of the motor fixing seat of the utility model from another perspective;

[0022] Figure 4 A three-dimensional diagram of the fan blade of the utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the fan blade and the motor fixing seat of the utility model;

[0024] Figure 6 A three-dimensional diagram of the end cover of the utility model;

[0025] In the figure: a motor fixing seat 1, a groove 2, a through hole 3, a fan blade fixing plate 4, a fan blade 5, an air guide groove 6, an end cover 7, a screw 8, a threaded hole 9, an axial hole 10, and a noise-eliminating tooth 11. DETAILED DESCRIPTION

[0026] The utility model aims to provide a mine explosion-proof air supply duct air valve to solve the problems and shortcomings raised in the above-mentioned background technology.

[0027] In order to achieve the above purpose, the utility model provides a mine explosion-proof air supply duct air valve, which is achieved by the following specific technical means:

[0028] A mine explosion-proof air supply duct air valve, comprising: an air valve body, a transmission mechanism, a mounting flange, a sealing gasket, a positioning ring, a sealing seat, a pressure spring, a reset spring, a limit seat, a limit ring, a valve plate, and a turntable; the transmission mechanism is mounted on the top of the air valve body, and the transmission mechanism is fixedly connected to the air valve body; the mounting flange is fixedly mounted on both ends of the air valve body by bolts; the sealing gasket is mounted on the inner wall of one side of the air valve body, and the sealing gasket is welded to the air valve body; the positioning ring is mounted on the inner wall of the air valve body, and the positioning ring is welded to the air valve body; the sealing seat It is installed on the inner wall of the positioning ring, and the sealing seat is plug-connected with the positioning ring; the pressure spring is installed on the outer wall on one side of the sealing seat, and the pressure spring is plug-connected with the sealing seat; the reset spring is installed inside the sealing seat, and the reset spring is plug-connected with the sealing seat; the limit seat is installed on the inner wall of the reset spring, and the limit seat is plug-connected with the reset spring; the limit ring is plug-connected on the upper part of the limit seat, and the limit ring is screwed and connected with the sealing seat; the valve plate is installed on the lower part of the transmission mechanism, and the valve plate is rotatably connected with the air valve body; the turntable is fixedly installed on one side of the transmission mechanism.

[0029] As a further optimization of the technical solution, the sealing gasket of the utility model of a mine explosion-proof air supply duct air valve is a circular ring structure, and the sealing gasket is welded and installed on the inner wall of one side of the air valve body as an integrated structure.

[0030] As a further optimization of the technical solution, a pressure spring is installed on one side of the sealing seat of a mine explosion-proof air supply duct air valve in the utility model, and the pressure spring is in a compressed state when not working, and the sealing seat can abut against one side of the sealing gasket through the pressure spring to form a hard sealing device.

[0031] As a further optimization of the technical solution, the utility model provides a mining explosion-proof air supply duct air valve, wherein the sealing seat is a cylindrical structure with a cross-section in the shape of the English letter "T", and a groove for installing a reset spring, a limit seat, and a limit ring is provided on the outer wall on one side of the sealing seat, and the grooves are distributed in a circular array at four locations on the outer wall on one side of the sealing seat.

[0032] As a further optimization of the technical solution, the limit seat of the utility model of a mine explosion-proof air supply duct air valve is a cylindrical structure in the shape of a mathematical symbol "+", and the bottom of the limit seat is installed in the groove on the outer wall of the sealing seat through a reset spring as a sliding device.

[0033] As a further optimization of the technical solution, the utility model provides a mining explosion-proof air supply duct air valve, wherein the positioning ring is a circular ring structure, and circular holes distributed in a circular array are provided on the positioning ring.

[0034] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0035] 1. The utility model has a sealing gasket with an annular structure, and the sealing gasket is welded and installed on the inner wall of one side of the air valve body as an integrated structure. A pressure spring is inserted and installed on one side of the sealing seat, and the pressure spring is in a compressed state when not in operation, and the sealing seat can abut against one side of the sealing gasket through the pressure spring to form a hard sealing device. The sealing seat can abut against one side of the sealing gasket through the pressure spring to form a hard sealing device, so that when the air concentration on one side of the air valve body changes to produce a pressure difference, the gas will impact one side of the sealing seat, causing the sealing seat to slide along the positioning ring, so that the sealing gasket abuts against the sealing seat and seals, effectively blocking the air flow in the air valve body and preventing the occurrence of explosions.

[0036] 2. The sealing seat of the utility model is a cylindrical structure with a cross-section in the shape of the English letter "T", and a groove for installing a reset spring, a limit seat, and a limit ring is provided on the outer wall of one side of the sealing seat, and the grooves are distributed in a circular array at four places on the outer wall of one side of the sealing seat. The limit seat is a cylindrical structure in the shape of a mathematical symbol "+", and the bottom of the limit seat is installed in the groove on the outer wall of the sealing seat through a reset spring. The sliding device is set, and four grooves for installing a reset spring, a limit seat, and a limit ring are provided on the outer wall of the sealing seat. The pressure spring can be compressed between the positioning ring and the sealing seat through the action of the limit seat, thereby improving the firmness and stability of the device connection.

[0037] 3. The positioning ring of the utility model is a circular ring structure, and the positioning ring is provided with circular holes distributed in a circular array. The circular holes distributed in a circular array on the positioning ring facilitate the air flow in the air valve body.

[0038] 4. The utility model improves a mine explosion-proof air supply duct air valve, has the advantages of reasonable structural design, good explosion-proof performance, strong safety performance, and firm and stable operation of the air valve, thereby effectively solving the problems and shortcomings of the existing device.

Claims

1. A mine explosion-proof air supply duct air valve, comprising: A damper body (1), a transmission mechanism (2), a mounting flange (3), a sealing gasket (4), a positioning ring (5), a sealing seat (6), a pressure spring (7), a return spring (8), a limiting seat (9), a limiting ring (10), a valve plate (11), and a rotating disk (12); characterized in that: the transmission mechanism (2) is mounted on the top of the damper body (1), and the transmission mechanism (2) is fixedly connected to the damper body (1); the mounting flange (3) is fixedly mounted on both ends of the damper body (1) by bolts; the sealing gasket (4) is mounted on the inner wall of one side of the damper body (1), and the sealing gasket (4) is welded to the damper body (1); the positioning ring (5) is mounted on the inner wall of the damper body (1), and the positioning ring (5) is welded to the damper body (1); the sealing seat (6) is mounted on the damper body (1) and the damper body (1) is welded to the damper body (1); the sealing gasket (6) is mounted on the damper body (1) and the damper body (1) is welded to the damper body (1); the sealing gasket (4 ... The sealing seat (6) is plugged and connected to the positioning ring (5); the pressure spring (7) is mounted on the outer wall of one side of the sealing seat (6), and the pressure spring (7) is plugged and connected to the sealing seat (6); the return spring (8) is mounted inside the sealing seat (6), and the return spring (8) is plugged and connected to the sealing seat (6); the limit seat (9) is mounted on the inner wall of the return spring (8), and the limit seat (9) is plugged and connected to the return spring (8); the limit ring (10) is plugged and mounted on the upper part of the limit seat (9), and the limit ring (10) is screwed and connected to the sealing seat (6); the valve plate (11) is mounted on the lower part of the transmission mechanism (2), and the valve plate (11) is rotatably connected to the air valve body (1); the rotary disk (12) is fixedly mounted on one side of the transmission mechanism (2).

2. The explosion-proof air supply duct air valve for mines according to claim 1 is characterized in that: The sealing gasket (4) is a circular ring structure, and the sealing gasket (4) is welded and mounted on the inner wall of one side of the air valve body (1) to form an integrated structure.

3. The explosion-proof air supply duct air valve for mines according to claim 1 is characterized in that: A pressure spring (7) is inserted and installed on one side of the sealing seat (6), and the pressure spring (7) is in a compressed state when not in operation, and the sealing seat (6) can abut against one side of the sealing gasket (4) through the pressure spring (7) to form a hard sealing device.

4. The explosion-proof air supply duct air valve for mines according to claim 1, characterized in that: The sealing seat (6) is a cylindrical structure with a cross-section in the shape of the English letter "T", and a groove for mounting a reset spring (8), a limit seat (9), and a limit ring (10) is provided on the outer wall of one side of the sealing seat (6), and the grooves are distributed in a circular array at four locations on the outer wall of one side of the sealing seat (6).

5. The explosion-proof air supply duct air valve for mines according to claim 1 is characterized in that: The limit seat (9) is a cylindrical structure in the shape of a mathematical symbol "+", and the bottom of the limit seat (9) is inserted into a groove on the outer wall of the sealing seat (6) through a return spring (8) to form a sliding device.

6. The explosion-proof air supply duct air valve for mines according to claim 1, characterized in that: The positioning ring (5) is a circular ring structure, and circular holes distributed in a circular array are provided on the positioning ring (5).

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