CN215806563U

CN215806563U - Gas safety valve

Info

Publication number: CN215806563U
Application number: CN202122325763.1U
Authority: CN
Inventors: 宋延祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-11
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a gas safety valve, and relates to the technical field of gas valves. The gas pipeline connecting device comprises connecting pipelines, connecting flanges used for connecting gas pipelines on two sides are arranged on two sides of each connecting pipeline, connecting blocks are fixed on the connecting pipelines, and valve plates capable of sliding along the length direction of the connecting blocks and capable of closing or opening the connecting pipelines are arranged in the connecting blocks. The gas valve can be arranged on a gas pipeline through the connecting flanges on the two sides of the connecting pipeline, the connecting pipeline can be closed or opened through the valve plate moving along the length direction of the connecting block, after the connecting pipeline is closed by the valve plate, when the pressure in the connecting pipeline is overlarge, the piston can extrude the elastic component under the action of the pressure and enables the piston to move towards one side far away from the connecting pipeline, so that the exhaust pipe is exposed, the gas can be discharged into the gas bag through the exhaust pipe, the surface area of the gas bag can be enlarged after the gas bag stores the gas, and personnel can be warned.

Description

Gas safety valve

Technical Field

The utility model relates to the technical field of gas valves, in particular to a gas safety valve.

Background

The gas safety valve has two types of spring type and rod type, and in addition, the gas safety valve also has impulse type safety valve, pilot type safety valve, safety switching valve, safety relief valve and static-weight type safety valve, etc., the gas safety valve has two types of spring type and rod type, the spring type safety valve mainly depends on the acting force of the spring to work, and the spring type safety valve has closed and non-closed states.

The pressure release can be carried out to current safety valve when the pressure in the gas pipeline is too big, but it all is direct in excreting the air with the gas at the in-process of pressure release, can cause the pollution and have certain danger like this to the air to current safety valve can not remind personnel when carrying out the pressure release, provides a gas safety valve for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: the utility model provides a gas safety valve, aiming at solving the problems that the existing safety valve directly discharges gas into air when the pressure in a gas pipeline is too high, so that the air is polluted and has certain danger, and the existing safety valve cannot remind people when the pressure is relieved.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a gas safety valve, includes the connecting tube, the connecting tube both sides are provided with the flange that is used for connecting both sides gas pipeline, be fixed with the connecting block on the connecting tube, be provided with in the connecting block and follow its length to sliding and can with the valve plate that the connecting tube seals or opens, connecting tube one side is connected with the pressure release pipe, be provided with the piston rather than the adaptation in the pressure release pipe, be provided with in the pressure release pipe and be used for forcing the piston is close to the elasticity subassembly of connecting tube, pressure release pipe one side is connected with the blast pipe that is used for excreting coal gas just be connected with the gasbag that is used for storing its excreteed coal gas on the blast pipe.

Furthermore, a sliding groove matched with the valve plate is formed in the connecting block along the length direction of the connecting block, the top of the valve plate is connected with a threaded rod in threaded connection with the connecting block through a bearing, and a handle used for driving the threaded rod to rotate is fixed at the top end of the threaded rod.

Furthermore, the elastic component comprises a top cover in threaded connection with the top end of the pressure relief pipe, a mounting groove formed in the bottom of the top cover, and a spring with two ends respectively fixed on the piston and the mounting groove.

Furthermore, a sealing block is fixed on the outer side of the pressure relief pipe, a sealing cover is connected with the outer thread of the sealing block, and a rubber pad used for improving the sealing performance of the joint of the sealing block and the sealing cover is fixed on the sealing cover.

Furthermore, a sealing groove is formed in the outer side of the connecting flange, and a sealing gasket is fixed in the sealing groove.

Furthermore, a connecting ring is sleeved on the connecting pipeline, a connecting rod is connected to one side of the connecting ring, and a mounting plate is fixed to the tail end of the connecting rod.

The utility model has the following beneficial effects:

1. the utility model can be arranged on the gas pipeline by connecting flanges at two sides of the connecting pipeline, the connecting pipeline can be closed or opened by moving the valve plate along the length direction of the connecting block, after the valve plate seals the connecting pipeline, when the pressure in the connecting pipeline is overlarge, the piston can extrude the elastic component under the action of the pressure and enables the piston to move to one side far away from the connecting pipeline, thereby exposing the exhaust pipe, leading the gas to be discharged into the air bag through the exhaust pipe, expanding the surface area of the air bag after the air bag stores the gas, warning personnel, solving the problems that the prior safety valve directly discharges the gas into the air when the pressure in the gas pipeline is overlarge, the safety valve has the advantages that air can be polluted and certain dangerousness is realized, and the existing safety valve cannot remind people when pressure is relieved.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2 of the present invention;

FIG. 4 is a cross-sectional view B-B of FIG. 2 in accordance with the present invention;

reference numerals: 1. connecting a pipeline; 2. a connecting flange; 3. connecting blocks; 4. a valve plate; 5. a pressure relief pipe; 51. an exhaust pipe; 6. a piston; 7. an elastic component; 71. a top cover; 72. mounting grooves; 73. a spring; 8. an air bag; 9. a chute; 10. a threaded rod; 11. a handle; 12. a sealing block; 13. a sealing cover; 14. a rubber pad; 15. a sealing groove; 16. a gasket; 17. a connecting ring; 18. a connecting rod; 19. and (7) mounting the plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, 2 and 3, a gas safety valve comprises a connecting pipe 1, wherein two sides of the connecting pipe 1 are provided with connecting flanges 2 for connecting gas pipes at two sides, a connecting block 3 is fixed on the connecting pipe 1, a valve plate 4 capable of sliding along the length direction of the connecting block 3 and capable of closing or opening the connecting pipe 1 is arranged in the connecting block 3, a pressure relief pipe 5 is connected to one side of the connecting pipe 1, a piston 6 adapted to the pressure relief pipe 5 is arranged in the pressure relief pipe 5, an elastic component 7 for forcing the piston 6 to be close to the connecting pipe 1 is arranged in the pressure relief pipe 5, an exhaust pipe 51 for discharging gas is connected to one side of the pressure relief pipe 5, and an air bag 8 for storing the discharged gas is connected to the exhaust pipe 51, in some embodiments, the gas safety valve can be installed on the gas pipes through the connecting flanges 2 at two sides of the connecting pipe 1, the connecting pipeline 1 can be closed or opened by moving the valve plate 4 along the length direction of the connecting block 3, after the connecting pipeline 1 is closed by the valve plate 4, when the pressure in the connecting pipeline 1 is overlarge, the piston 6 can extrude the elastic component 7 under the action of the pressure and enables the piston 6 to move towards one side far away from the connecting pipeline 1, so that the exhaust pipe 51 is exposed, gas can be discharged into the air bag 8 through the exhaust pipe 51, the surface area of the air bag 8 can be enlarged after the gas is stored in the air bag 8, and the warning can be given to people, so that the problem that the existing safety valve can directly discharge the gas into the air when the pressure in the gas pipeline is overlarge is solved, the air can be polluted and has certain danger, and the existing safety valve can not remind the people when the existing safety valve is used, more specifically, the connecting flange 2 on two sides of the connecting pipeline 1 is firstly connected with the gas pipelines on two sides when in use, can seal or open connecting tube 1 through valve plate 4 along the length of connecting block 3 to the removal, after valve plate 4 seals connecting tube 1, connecting tube 1 can bear the pressure of the interior coal gas of pipeline, when the pressure in connecting tube 1 was too big, piston 6 can move to the direction of keeping away from connecting tube 1 along pressure release pipe 5 way under the effect of pressure, make piston 6 extrude elasticity subassembly 7 and move along pressure release pipe 5, can expose blast pipe 51 at the in-process that piston 6 removed, thereby make coal gas pass through inside blast pipe 51 discharges into gasbag 8, gasbag 8 can store coal gas, its surface area can expand simultaneously, can warn personnel when storing leaking coal gas, and after the pressure in the coal gas pipeline reduces, piston 6 can seal blast pipe 51 under the effect of elasticity subassembly 7 again.

As shown in fig. 3 and 4, a chute 9 adapted to the valve plate 4 is formed in the connecting block 3 along the length direction thereof, the top of the valve plate 4 is connected with a threaded rod 10 in threaded connection with the connecting block 3 through a bearing, and a handle 11 for driving the threaded rod 10 to rotate is fixed at the top end of the threaded rod 10, the handle 11 can drive the threaded rod 10 to rotate when rotating, and the threaded rod 10 is in threaded connection with the connecting block 3 and can drive the valve plate 4 to move along the chute 9 when the threaded rod 10 rotates, so that the connecting pipeline 1 is closed or opened.

As shown in fig. 3, the elastic member 7 includes a top cover 71 screwed on the top end of the pressure relief pipe 5, a mounting groove 72 formed at the bottom of the top cover 71, and a spring 73 having two ends fixed to the piston 6 and the mounting groove 72, respectively, where the gas pressure in the connection pipe 1 can press the piston 6 to move along the pressure relief pipe 5, because the spring 73 has a certain elastic coefficient, the distance that the piston 6 moves along the pressure relief pipe 5 is different according to the pressure to which the piston 6 is subjected, when the pressure in the connection pipe 1 is too high, the piston 6 can expose the exhaust pipe 51 for pressure relief, because the cover plate is screwed to the pressure relief pipe 5, when the top cover 71 is screwed in different depths, the position of the piston 6 in the pressure relief pipe 5 is different, thereby changing the pressure value in the connection pipe 1 during pressure relief.

As shown in fig. 3, a sealing block 12 is fixed on the outer side of the pressure relief pipe 5, a sealing cover 13 is connected with the sealing block 12 through an external thread, a rubber pad 14 for improving the sealing performance of the joint of the sealing block 12 and the pressure relief pipe 5 is fixed on the sealing cover 13, the sealing cover 13 is screwed on the outer side of the sealing block 12 after a top cover 71 is screwed into the pressure relief pipe 5, a groove body matched with the rubber pad 14 is formed on the top of the sealing block 12, the pressure relief pipe 5 is sealed when the sealing cover 13 is screwed, and therefore the sealing performance between the top cover 71 and the pressure relief pipe 5 is guaranteed.

As shown in fig. 1 and 3, a seal groove 15 is formed on the outer side of the connection flange 2, a gasket 16 is fixed in the seal groove 15, and the gasket 16 is provided on the outer side of the connection flange 2, so that when the connection pipe 1 is connected to a gas pipe, the seal groove 15 and the gasket 16 can improve the sealing property of the joint between the two.

As shown in fig. 1 and 3, a connection ring 17 is sleeved on the connection pipe 1, one side of the connection ring 17 is connected with a connection rod 18, the tail end of the connection rod 18 is fixed with a mounting plate 19, a device hole is constructed on the mounting plate 19, the mounting plate 19 can be fixed through the device hole, after the connection pipe 1 is connected with the gas pipes on two sides, the connection pipe 1 can be reinforced through the connection ring 17 sleeved on the connection pipe 1 and the connection rod 18 on one side of the mounting plate 19, and the connection pipe 1 is prevented from shaking.

Claims

1. A gas safety valve is characterized by comprising a connecting pipeline (1), connecting flanges (2) used for connecting gas pipelines at two sides are arranged at two sides of the connecting pipeline (1), a connecting block (3) is fixed on the connecting pipeline (1), a valve plate (4) which can slide along the length direction of the connecting block (3) and can close or open the connecting pipeline (1) is arranged in the connecting block (3), one side of the connecting pipeline (1) is connected with a pressure relief pipe (5), a piston (6) matched with the pressure relief pipe (5) is arranged in the pressure relief pipe (5), an elastic component (7) used for forcing the piston (6) to be close to the connecting pipeline (1) is arranged in the pressure relief pipe (5), one side of the pressure relief pipe (5) is connected with an exhaust pipe (51) for discharging gas, and the exhaust pipe (51) is connected with an air bag (8) for storing the discharged gas.

2. The gas safety valve according to claim 1, characterized in that a sliding groove (9) matched with the valve plate (4) is formed in the connecting block (3) along the length direction of the connecting block, a threaded rod (10) in threaded connection with the connecting block (3) is connected to the top of the valve plate (4) through a bearing, and a handle (11) for driving the threaded rod (10) to rotate is fixed at the top end of the threaded rod.

3. A gas safety valve according to claim 1, wherein the resilient member (7) comprises a top cover (71) screwed to the top end of the pressure relief tube (5) and a mounting groove (72) formed in the bottom of the top cover (71), and further comprises a spring (73) having both ends fixed to the piston (6) and the mounting groove (72), respectively.

4. The gas safety valve according to claim 1, wherein a sealing block (12) is fixed on the outer side of the pressure relief pipe (5), a sealing cover (13) is connected with the sealing block (12) through an external thread, and a rubber gasket (14) for improving the sealing performance of the joint of the sealing block and the sealing cover (13) is fixed on the sealing cover (13).

5. A gas safety valve according to claim 1, characterized in that a sealing groove (15) is formed on the outer side of the connecting flange (2), and a sealing gasket (16) is fixed in the sealing groove (15).

6. The gas safety valve according to claim 1, characterized in that the connecting pipe (1) is sleeved with a connecting ring (17), one side of the connecting ring (17) is connected with a connecting rod (18), and the tail end of the connecting rod (18) is fixed with a mounting plate (19).