High-pressure protection block valve for natural gas pressure regulating pry

Abstract

The utility model discloses a high-pressure protection block valve for a natural gas pressure regulating pry, which relates to the technical field of high-pressure protection block valves, and comprises a device main body, the bottom of the device main body is fixedly connected with a bottom mounting block, both sides of the device main body are fixedly connected with support frames arranged at equal intervals, and the bottoms of the support frames are fixedly connected with a mounting plate. A transmission shaft is placed at the top of the device body, and connecting pipes arranged at equal intervals are fixedly connected to the periphery of the outer surface of the transmission shaft. During use, firstly, the device body is placed at a natural gas valve mounting opening, the rotating rods on the two sides are rotated at the same time, the rotating rods drive the rotating disc, the rotating disc drives the threaded rod, and the rotating disc drives the threaded rod; the threaded rod rotates in the mounting plate in a threaded mode and extrudes the connecting plate, the connecting plate fixes the natural gas valve mounting opening, the device is prevented from falling off, the structure is simple, operation is convenient, mounting and dismounting are convenient, regular maintenance of the device is convenient, and the practical value of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high - pressure protection cut - off valves, in particular to a high - pressure protection cut - off valve for a natural gas pressure regulating skid. Background Art

[0002] A cut - off valve is a kind of actuator in an automation system, which consists of a multi - spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. The cut - off valve has a wide range of uses. It can be used to cut off gas, combustion - supporting air, cold air and flue gas. When connected with a combustible gas leakage detection instrument, when the instrument detects the leakage of combustible gas, it can automatically and quickly close the main gas supply valve, cut off the gas supply, and timely prevent the occurrence of serious accidents.

[0003] For example, the application number CN201822167489.8 discloses a high - pressure skid for vaporization and pressure regulation, including a valve body, a cut - off piston, a reset runner, etc. Inside the valve body, there are a main air passage and a cut - off piston slideway. The cut - off piston slides inside the cut - off piston slideway, and the reset runner is installed above the valve body. The utility model is installed at the outlet of the pressure regulating skid. When the pressure of the gas entering the main air passage is high due to a fault in the pressure regulating skid, it can automatically cut off the main air passage, eliminate the safety hazards of the pipe network at the rear end of the pressure regulating skid, and the cut - off piston can be conveniently reset.

[0004] However, in the implementation of related technologies, it is found that the high - pressure skid for vaporization and pressure regulation has the following problems: the above - mentioned device is inconvenient for installation and disassembly by workers after installation, not convenient for regular maintenance and replacement of the device, and the structure of the cut - off valve is relatively complex, resulting in certain inconvenience in use. Content of the Utility Model

[0005] The utility model provides a high - pressure protection cut - off valve for a natural gas pressure regulating skid, which solves the problems of inconvenient installation and disassembly of the device and complex structure in related technologies:

[0006] The technical solution of the utility model is as follows: a high - pressure protection cut - off valve for a natural gas pressure regulating skid, including a device main body. A bottom mounting block is fixedly connected to the bottom of the device main body. On both sides of the device main body, there are fixedly connected with equally - spaced arranged support frames. The bottom of the support frame is fixedly connected with a mounting plate. A transmission shaft is placed on the top of the device main body. Equally - spaced arranged connecting pipes are fixedly connected to the outer periphery of the transmission shaft. An inner ring is fixedly connected to the middle of the connecting pipe. The end of the connecting pipe far from the transmission shaft is fixedly connected with an outer ring.

[0007] Preferably, equally - spaced arranged driving rods are fixedly connected to the top of the outer ring, and a grip rod is fixedly connected to the middle of the driving rod.

[0008] Preferably, a first placement hole is opened in the middle of the device main body.

[0009] Preferably, a second placement hole is formed in the middle of the bottom mounting block.

[0010] Preferably, a threaded rod is movably connected to the middle of the mounting plate, and a connecting plate is fixedly connected to one side of the threaded rod.

[0011] Preferably, a turntable is fixedly connected to the side of the threaded rod away from the connecting plate, and a rotating rod is fixedly connected to the side of the turntable away from the mounting plate.

[0012] Preferably, equidistantly arranged mounting blocks are fixedly connected to the bottom of the transmission shaft, and a movable rod is fixedly connected to the middle of the mounting block.

[0013] Preferably, a washer is fixedly connected to the bottom of the movable rod, and a piston is fixedly connected to the bottom of the washer.

[0014] The working principle and beneficial effects of the present utility model are as follows:

[0015] 1. In the present utility model, by providing a mounting plate, a threaded rod, a turntable, and a rotating rod, during use, first place the device body at the natural gas valve installation opening, and at the same time rotate the rotating rods on both sides. The rotating rods drive the turntable, the turntable drives the threaded rod, and the threaded rod rotates threadedly in the mounting plate and squeezes the connecting plate. The connecting plate fixes the natural gas valve installation opening to prevent the device from falling off. Moreover, the structure is simple, the operation is convenient, it is easy to install and disassemble, and it is convenient to perform regular maintenance on the device, improving the practical value of the device.

[0016] 2. In the present utility model, by providing a driving rod, a grip rod, a mounting block, a movable rod, a washer, and a piston, when using the high-pressure protection cut-off valve for a natural gas pressure regulating skid, by rotating the grip rod, the grip rod drives the driving rod, the driving rod drives the outer ring, the outer ring drives the connecting pipe, the connecting pipe drives the inner ring and the transmission shaft, the transmission shaft drives the mounting block, and the mounting block drives the movable rod to move up and down. The movable rod squeezes the washer, and the washer squeezes the piston to achieve the cut-off operation of the valve. The structure is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further describes the present utility model in detail in conjunction with the drawings and specific embodiments.

[0018] Figure 1 is a schematic structural diagram of a high-pressure protection cut-off valve for a natural gas pressure regulating skid proposed by the present utility model;

[0019] Figure 2 is a front structural diagram of a high-pressure protection cut-off valve for a natural gas pressure regulating skid proposed by the present utility model;

[0020] Figure 3Schematic cross-sectional view of a high-pressure protection cut-off valve structure for a natural gas pressure regulating skid proposed by the present utility model;

[0021] Figure 4 Schematic view of the structure at the outer ring of a high-pressure protection cut-off valve for a natural gas pressure regulating skid proposed by the present utility model;

[0022] Figure 5 Schematic view of the bottom structure of a high-pressure protection cut-off valve for a natural gas pressure regulating skid proposed by the present utility model;

[0023] In the figure: 1, device main body; 101, first placement hole; 2, bottom mounting block; 201, second placement hole; 3, support frame; 4, mounting plate; 401, threaded rod; 402, turntable; 403, rotating rod; 404, connecting plate; 5, transmission shaft; 501, mounting block; 502, movable rod; 503, washer; 504, piston; 6, inner ring; 7, connecting pipe; 8, outer ring; 801, driving rod; 802, grip rod. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0025] Refer to Figure 1 , a high-pressure protection cut-off valve for a natural gas pressure regulating skid, including a device main body 1. A bottom mounting block 2 is fixedly connected to the bottom of the device main body 1. Support frames 3 arranged at equal intervals are fixedly connected to both sides of the device main body 1. A mounting plate 4 is fixedly connected to the bottom of the support frame 3. A transmission shaft 5 is placed on the top of the device main body 1. Connecting pipes 7 arranged at equal intervals are fixedly connected to the periphery of the outer surface of the transmission shaft 5. An inner ring 6 is fixedly connected to the middle of the connecting pipe 7. One end of the connecting pipe 7 far from the transmission shaft 5 is fixedly connected to an outer ring 8.

[0026] Refer to Figure 2, a threaded rod 401 is movably connected to the middle of the mounting plate 4. A connecting plate 404 is fixedly connected to one side of the threaded rod 401. A turntable 402 is fixedly connected to the side of the threaded rod 401 away from the connecting plate 404. A rotating rod 403 is fixedly connected to the side of the turntable 402 away from the mounting plate 4. In this embodiment, by providing the mounting plate 4, the threaded rod 401, the turntable 402, and the rotating rod 403, when in use, first place the device main body 1 at the natural gas valve installation opening, and at the same time rotate the rotating rods 403 on both sides. The rotating rods 403 drive the turntable 402, the turntable 402 drives the threaded rod 401, and the threaded rod 401 rotates in a threaded manner in the mounting plate 4 and presses the connecting plate 404. The connecting plate 404 fixes the natural gas valve installation opening, preventing the device from falling off. Moreover, the structure is simple, the operation is convenient, it is easy to install and disassemble, and it is convenient to perform regular maintenance on the device, improving the practical value of the device.

[0027] Refer to Figure 3 , Figure 4 and Figure 5 , equally spaced driving rods 801 are fixedly connected to the top of the outer ring 8. A grip rod 802 is fixedly connected to the middle of the driving rod 801. A first placement hole 101 is opened in the middle of the device main body 1. A second placement hole 201 is opened in the middle of the bottom mounting block 2. Equally spaced mounting blocks 501 are fixedly connected to the bottom of the transmission shaft 5. A movable rod 502 is fixedly connected to the middle of the mounting block 501. A washer 503 is fixedly connected to the bottom of the movable rod 502. A piston 504 is fixedly connected to the bottom of the washer 503. In this embodiment, by providing the driving rod 801, the grip rod 802, the mounting block 501, the movable rod 502, the washer 503, and the piston 504, when using the high-pressure protection cut-off valve for the natural gas pressure regulating skid, by rotating the grip rod 802, the grip rod 802 drives the driving rod 801, the driving rod 801 drives the outer ring 8, the outer ring 8 drives the connecting pipe 7, the connecting pipe 7 drives the inner ring 6 and the transmission shaft 5, the transmission shaft 5 drives the mounting block 501, and the mounting block 501 drives the movable rod 502 to move up and down. The movable rod 502 presses the washer 503, and the washer 503 presses the piston 504 to achieve the cut-off operation of the valve. The structure is simple and the operation is convenient.

[0028] The working principle and usage process of the present utility model:

[0029] During installation, first, the equally spaced support frames 3 are fixedly installed on both sides of the device main body 1, then the bottom mounting block 2 is fixedly installed at the bottom of the device main body 1. Further, the movable rod 502 is placed into the second placement hole 201, and the top of the movable rod 502 is fixedly installed with the mounting block 501. Further, the mounting plate 4 is fixedly installed at the bottom of the support frame 3, and then the threaded rod 401 is threadedly installed in the middle of the mounting plate 4. One side of the threaded rod 401 is fixedly installed with the connecting plate 404, and the other side of the connecting plate 404 is fixedly installed on the turntable 402. Further, the rotating rod 403 is fixedly installed on the side of the turntable 402 away from the mounting plate 4. Further, the equally spaced drive rods 801 are fixedly installed on the top of the outer ring 8. When using the high-pressure protection cut-off valve for the pressure regulating skid, first, the device main body 1 is placed at the natural gas valve installation opening. At the same time, the two rotating rods 403 are rotated. The rotating rod 403 drives the turntable 402, the turntable 402 drives the threaded rod 401, and the threaded rod 401 threadedly rotates in the mounting plate 4 and squeezes the connecting plate 404. The connecting plate 404 fixes the natural gas valve installation opening to prevent the device from falling off. By rotating the grip rod 802, the grip rod 802 drives the drive rod 801, the drive rod 801 drives the outer ring 8, the outer ring 8 drives the connecting pipe 7, the connecting pipe 7 drives the inner ring 6 and the transmission shaft 5, the transmission shaft 5 drives the mounting block 501, and the mounting block 501 drives the movable rod 502 to move up and down. The movable rod 502 squeezes the washer 503, and the washer 503 squeezes the piston 504 to achieve the cut-off operation of the valve.

[0030] The above is only the preferred specific implementation mode of the present utility model, and does not limit the protection scope of the present utility model accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model shall be covered within the protection scope of the present utility model.

Claims

1. A high-pressure protection cut-off valve for a natural gas pressure regulating skid, comprising a device main body (1), characterized in that: A bottom mounting block (2) is fixedly connected to the bottom of the device main body (1). On both sides of the device main body (1), there are fixedly connected support frames (3) arranged at equal intervals. A mounting plate (4) is fixedly connected to the bottom of the support frame (3). A transmission shaft (5) is placed on the top of the device main body (1). Around the outer surface of the transmission shaft (5), there are fixedly connected connecting pipes (7) arranged at equal intervals. An inner ring (6) is fixedly connected to the middle of the connecting pipe (7). One end of the connecting pipe (7) far from the transmission shaft (5) is fixedly connected to an outer ring (8).

2. The high-pressure protection cut-off valve for a natural gas pressure regulating skid according to claim 1, characterized in that: On the top of the outer ring (8), there are fixedly connected drive rods (801) arranged at equal intervals. A grip rod (802) is fixedly connected to the middle of the drive rod (801).

3. A high-pressure protection cut-off valve for a natural gas pressure regulating skid, characterized in that: A first placement hole (101) is formed in the middle of the device main body (1).

4. A high-pressure protection cut-off valve for a natural gas pressure regulating skid, characterized in that: A second placement hole (201) is formed in the middle of the bottom mounting block (2).

5. A high-pressure protection cut-off valve for a natural gas pressure regulating skid, characterized in that: A threaded rod (401) is movably connected to the middle of the mounting plate (4). A connecting plate (404) is fixedly connected to one side of the threaded rod (401).

6. The high-pressure protection cut-off valve for a natural gas pressure regulating skid according to claim 5, characterized in that: On the side of the threaded rod (401) far from the connecting plate (404), there is a turntable (402) fixedly connected. A rotating rod (403) is fixedly connected to the side of the turntable (402) far from the mounting plate (4).

7. The high-pressure protection cut-off valve for a natural gas pressure regulating skid according to claim 1, characterized in that: At the bottom of the transmission shaft (5), there are fixedly connected mounting blocks (501) arranged at equal intervals. A movable rod (502) is fixedly connected to the middle of the mounting block (501).

8. A high-pressure protection cut-off valve for a natural gas pressure regulating skid, characterized in that: A washer (503) is fixedly connected to the bottom of the movable rod (502). A piston (504) is fixedly connected to the bottom of the washer (503).

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