Valve structure of gas engineering

Abstract

The utility model discloses a valve structure of fuel gas engineering, relates to the fuel gas valve field, including valve body, the inside of valve body is connected with limit plate, the inside of limit plate is provided with vent hole, the inside of valve body is in sliding connection with support frame, the inside of support frame is connected with transmission rod, and the inside of transmission rod is connected with the inside of valve body. One end of the transmission rod is connected with an airtight plug, a sliding rail is connected to the interior of the valve body, a power mechanism is arranged in the valve body, the outer surface of the valve body is connected with a mounting plate, and a pressure gauge is mounted in the valve body. Through cooperation of the airtight plug, the supporting frame and other components, the airtight plug can move, so that the air pressure in the pipeline is adjusted, the supporting frame can support the transmission rod and cannot move up and down at will, deviation of the position where the transmission rod drives the airtight plug to move is avoided, and the problem that manual operation of workers is needed, and the efficiency is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, and particularly relates to a valve structure for gas engineering. Background Technique

[0002] The gas valve is a new type of safety supporting device for gas pipeline engineering. The main function of the gas valve is to control the cut-off and opening of gas, ensure the safety of gas pipeline engineering, and also provide a convenient and efficient operation experience in practical applications. It is an indispensable safety device in modern gas pipeline engineering.

[0003] When sending gas to the gas pipeline, too high pressure may cause the pipeline material to reach its limit, leading to serious accidents such as bursting and leakage, which not only affect production and operation, but also pose a major threat to the safety of people around and the environment. Moreover, equipment such as pipelines, their connectors, and valves under high pressure for a long time will accelerate wear due to material fatigue, shorten the service life and increase the maintenance cost. Most of the existing gas valves for controlling the pressure of gas pipelines need to be manually adjusted by staff. After the staff know that there is a problem with the pressure of a certain gas pipeline, they still need to rush over and it takes a certain amount of time, and the operation efficiency is relatively low. To solve this technical problem, the utility model proposes a valve structure for gas engineering. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a valve structure for gas engineering, which can effectively solve the problems mentioned in the background technique.

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

[0006] A valve structure for gas engineering includes a valve body. A limiting plate is connected inside the valve body. An air vent is opened inside the limiting plate. A support frame is slidably connected inside the valve body. A transmission rod is connected inside the support frame. One end of the transmission rod is connected with an airtight plug. A sliding rail is connected inside the valve body. A power mechanism is arranged inside the valve body. A mounting plate is connected to the outer surface of the valve body. A pressure gauge is installed inside the valve body.

[0007] Preferably, the power mechanism includes a servo motor. The servo motor is installed on the outer surface of the mounting plate, and the output end of the servo motor is connected with a support rod.

[0008] Preferably, a spur gear is connected to the outer surface of the support rod, and a tooth is meshed with the outer surface of the spur gear.

[0009] Preferably, a transmission block is connected to the outer surface of the tooth, and a blocking plate is connected to the outer surface of the transmission block.

[0010] Preferably, the outer surface of the support rod is rotatably connected to the inside of the valve body, and the inside of the transmission block is slidably connected to the outer surface of the sliding rail.

[0011] Preferably, the outer surface of the partition plate contacts the outer surface of the transmission rod, and one end of the transmission rod is slidably connected to the outer surface of the transmission block.

[0012] Preferably, a sealing ring is connected inside the limiting plate, and the outer surface of the airtight plug is connected to the outer surface of the support frame.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] In the present utility model, through the cooperation between components such as the airtight plug and the support frame, first of all, the airtight plug can move. When it is necessary to adjust the air pressure in the pipeline, the power mechanism can be started to adjust the size of the gap between the airtight plug and the inner wall of the ventilation hole, so as to adjust the speed of natural gas entering the subsequent pipeline through the gas valve, thereby adjusting the air pressure in the pipeline. The support frame can provide support for the transmission rod, enabling the transmission rod to be in the middle position of the pipeline and not move up and down randomly, thus avoiding deviation in the position where the transmission rod drives the airtight plug to move, which is very convenient and solves the problem of low efficiency of manual operation by workers.

[0015] In the present utility model, through the cooperation between components such as the sliding rail and the sealing ring, the sliding rail will provide support for the transmission block. By means of the sliding rail, when the transmission block moves, it can only move along the sliding rail, thereby preventing deviation in the position where the transmission block moves and ensuring that the teeth on the transmission block do not separate from the spur gear. The sealing ring can increase the airtightness between the airtight plug and the ventilation hole, so that when the transmission block is in close contact with the sealing ring, natural gas cannot pass through the gap between the ventilation hole and the airtight plug, which is very useful. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of a valve structure for a gas engineering project of the present utility model;

[0017] Figure 2 is a schematic diagram of the power mechanism of a valve structure for a gas engineering project of the present utility model;

[0018] Figure 3 is a schematic cross-sectional view of the valve body of a valve structure for a gas engineering project of the present utility model;

[0019] Figure 4 is a schematic cross-sectional view of the support frame of a valve structure for a gas engineering project of the present utility model;

[0020] Figure 5 is a front view of the overall cross-section of a valve structure for a gas engineering project of the present utility model.

[0021] In the figure: 1. Valve body; 2. Limit plate; 3. Vent hole; 4. Support frame; 5. Transmission rod; 6. Airtight plug; 7. Sliding rail; 8. Power mechanism; 801. Servo motor; 802. Support rod; 803. Straight gear; 804. Teeth; 805. Transmission block; 806. Baffle plate; 9. Mounting plate; 10. Pressure gauge; 11. Sealing ring. Specific embodiments

[0022] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] As Figures 1-5 shown, a valve structure for a gas project includes a valve body 1. A limit plate 2 is connected inside the valve body 1, and a vent hole 3 is opened inside the limit plate 2. The gas pipeline is connected through both ends of the valve body 1. The valve body 1 will fix the position of the limit plate 2, making the limit plate 2 immovable. After the gas pipeline is connected to the valve body 1, the natural gas sent from the front gas pipeline can only enter the valve body 1 through the vent hole 3.

[0024] A support frame 4 is slidably connected inside the valve body 1, and a transmission rod 5 is connected inside the support frame 4. The valve body 1 will limit the direction in which the support frame 4 can move, so as to avoid deviation in the moving direction of the support frame 4. The position where the support frame 4 contacts the valve body 1 is relatively smooth, and the friction generated when the support frame 4 moves is small. The support frame 4 will limit the position of the transmission rod 5, and the transmission rod 5 will move along with the support frame 4 when the support frame 4 moves.

[0025] One end of the transmission rod 5 is connected with an airtight plug 6, and a sliding rail 7 is connected inside the valve body 1. The transmission rod 5 will fix the position of the airtight plug 6, and the airtight plug 6 will move along with the transmission rod 5 when the transmission rod 5 moves. The valve body 1 will fix the position of the sliding rail 7, making the sliding rail 7 immovable.

[0026] A power mechanism 8 is arranged inside the valve body 1, a mounting plate 9 is connected to the outer surface of the valve body 1, and a pressure gauge 10 is installed inside the valve body 1. The valve body 1 will fix the position of the mounting plate 9, making the mounting plate 9 immovable. The valve body 1 will limit the position of the pressure gauge 10. The pressure inside the valve body 1 is checked through the pressure gauge 10, and the data on the pressure gauge 10 can be directly transmitted to a remote central control screen like the pressure gauge 10 for detecting the tire pressure on a car, so that the staff can centrally monitor the pipeline through the screen.

[0027] The power mechanism 8 includes a servo motor 801. The servo motor 801 is installed on the outer surface of the mounting plate 9. The output end of the servo motor 801 is connected with a support rod 802. The mounting plate 9 fixes the position of the servo motor 801, so that the servo motor 801 will not rotate on its own when starting. The servo motor 801 can be controlled by remote operation, so that the staff does not need to manually adjust. The servo motor 801 fixes the position of the support rod 802 and will not drive the support rod 802 to rotate when the servo motor 801 starts.

[0028] A spur gear 803 is connected to the outer surface of the support rod 802. A tooth 804 meshes with the outer surface of the spur gear 803. The support rod 802 fixes the position of the spur gear 803 and can drive the spur gear 803 to rotate when the support rod 802 starts. When the spur gear 803 rotates, it will drive the tooth 804 to move.

[0029] A transmission block 805 is connected to the outer surface of the tooth 804. A baffle 806 is connected to the outer surface of the transmission block 805. The tooth 804 is fixed on the transmission block 805 and will drive the transmission block 805 to move up and down when the tooth 804 moves. The transmission block 805 fixes the position of the baffle 806 and will drive the baffle 806 to move when the transmission block 805 moves.

[0030] The outer surface of the support rod 802 is rotatably connected to the inside of the valve body 1. The inside of the transmission block 805 is slidably connected to the outer surface of the sliding rail 7. The valve body 1 restricts the position of the support rod 802 and reduces the vibration generated when the support rod 802 rotates through the valve body 1. The sliding rail 7 restricts the direction in which the transmission block 805 can move, so that the transmission block 805 can only move up and down through the sliding rail 7, so that the tooth 804 on the transmission block 805 will not separate from the spur gear 803.

[0031] The outer surface of the baffle 806 contacts the outer surface of the transmission rod 5. One end of the transmission rod 5 is slidably connected to the outer surface of the transmission block 805. By the contact between the baffle 806 and the transmission rod 5, the position where the transmission rod 5 can move is restricted, so that the transmission rod 5 will not detach from the transmission block 805. There is a slope on the transmission block 805. When the transmission block 805 moves, the transmission rod 5 will move towards the limiting plate 2 under the action of the slope on the transmission block 805, so that the transmission rod 5 can drive the airtight plug 6 to move. When the transmission block 805 does not obstruct the airtight plug 6, the airtight plug 6 can be pushed by natural gas to move.

[0032] A sealing ring 11 is connected to the inside of the limiting plate 2. The outer surface of the airtight plug 6 is connected to the outer surface of the support frame 4. The limiting plate 2 fixes the position of the sealing ring 11 so that the sealing ring 11 cannot move. The airtight plug 6 fixes the position of the support frame 4 and will drive the support frame 4 to move when the airtight plug 6 moves.

[0033] Working principle: When it is necessary to adjust the airtight valve, the user can start the servo motor 801. When the servo motor 801 starts, it will drive the support rod 802 to rotate. The rotation of the support rod 802 will drive the spur gear 803 to rotate. The rotation of the spur gear 803 will drive the tooth 804 to move. The movement of the tooth 804 will drive the transmission block 805 to move up and down. When the transmission block 805 moves, the inclined groove on the transmission block 805 will drive the transmission rod 5 to move. By moving the transmission rod 5, the support frame 4 and the airtight plug 6 are driven to move, so as to control the distance between the airtight plug 6 and the sealing ring 11, thereby completing the adjustment of the pressure.

[0034] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve structure for a gas engineering project, characterized in that: It includes a valve body (1), a limiting plate (2) is connected inside the valve body (1), a ventilation hole (3) is opened inside the limiting plate (2), a support frame (4) is slidably connected inside the valve body (1), a transmission rod (5) is connected inside the support frame (4), one end of the transmission rod (5) is connected with an airtight plug (6), a sliding rail (7) is connected inside the valve body (1), a power mechanism (8) is arranged inside the valve body (1), a mounting plate (9) is connected to the outer surface of the valve body (1), and a pressure gauge (10) is installed inside the valve body (1).

2. The valve structure of a gas engineering according to claim 1, characterized in that: The power mechanism (8) includes a servo motor (801), the servo motor (801) is installed on the outer surface of the mounting plate (9), and the output end of the servo motor (801) is connected with a support rod (802).

3. The valve structure of a gas engineering according to claim 2, characterized in that: A spur gear (803) is connected to the outer surface of the support rod (802), and a tooth (804) is meshed with the outer surface of the spur gear (803).

4. The valve structure for a gas engineering project according to claim 3, characterized in that: A transmission block (805) is connected to the outer surface of the tooth (804), and a blocking plate (806) is connected to the outer surface of the transmission block (805).

5. The valve structure for a gas engineering according to claim 4, characterized in that: The outer surface of the support rod (802) is rotatably connected with the inside of the valve body (1), and the inside of the transmission block (805) is slidably connected with the outer surface of the sliding rail (7).

6. The valve structure of a gas engineering according to claim 4, characterized in that: The outer surface of the blocking plate (806) is in contact with the outer surface of the transmission rod (5), and one end of the transmission rod (5) is slidably connected with the outer surface of the transmission block (805).

7. The valve structure for a gas engineering according to claim 1, characterized in that: A sealing ring (11) is connected inside the limiting plate (2), and the outer surface of the airtight plug (6) is connected with the outer surface of the support frame (4).

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