CN211779035U

CN211779035U - Pneumatic automatic control quick gas safety cut-off valve

Info

Publication number: CN211779035U
Application number: CN202020419028.XU
Authority: CN
Inventors: 赵振军; 李建雄; 李尚刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-27
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a quick coal gas safety trip valve of pneumatic automatic control, including valve body and block pipe, the intermediate position department of valve body bottom installs the bearing, and the internally mounted of bearing has the valve rod that extends to the valve body inside, the valve leaf is installed in the outside of valve rod, the air duct is installed at the top of valve body, and the top of air duct installs the intake pipe, communicating pipe is installed to the one end of intake pipe, and the bottom of communicating pipe installs pneumatic pipe. The utility model discloses install ring, hinge bar, sliding plate and connecting plate, during the outside has a power failure, first electro-magnet loses magnetism, and first reset spring pulling first check keeps off iron plate and moves to the top for in coal gas passes through communicating pipe entering pneumatic tube, atmospheric pressure passes through the sliding plate and promotes the hinge bar, makes the hinge bar pass through the connecting plate and promotes the ring and rotate, and the ring drives the valve rod and rotates, can make the valve leaf closed, realizes the automatic cutout process, prevents that coal gas from leaking.

Description

Pneumatic automatic control quick gas safety cut-off valve

Technical Field

The utility model relates to a safety shut-off valve technical field specifically is a quick coal gas safety shut-off valve of pneumatic automatic control.

Background

The emergency cut-off valve is also called a safety cut-off valve, which means that the valve can be rapidly closed or opened when an emergency occurs, so as to avoid accidents, the application of the safety cut-off valve is wide in various gas pipelines, the pneumatic automatic control rapid gas safety cut-off valve is used in an industrial kiln using gas as fuel, the existing pneumatic automatic control rapid gas safety cut-off valve is mostly controlled by a circuit, the working state of the cut-off valve is controlled by various electrical equipment, when dangerous conditions such as power failure and the like occur, the circuit of the safety cut-off valve fails, the valve cannot be automatically and rapidly closed, so that gas leaks, the gas pressure and the like of the gas are difficult to adjust due to the loss of the control of the electrical equipment, so that explosion accidents are easily caused, meanwhile, the existing pneumatic automatic control rapid gas safety cut-off valve only seals the valve through a valve, the sealing effect of the device is poor, and the blocking effect is difficult to effectively play, so the utility model provides a pneumatic automatic control quick coal gas safety cut-off valve which is used for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a quick coal gas safety trip valve of pneumatic automatic control to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a quick coal gas safety trip valve of pneumatic automatic control, includes valve body and block pipe, the intermediate position department of valve body bottom installs the bearing, and the internally mounted of bearing has the valve rod that extends to the valve body inside, the valve leaf is installed in the outside of valve rod, the air duct is installed at the top of valve body, and the top of air duct installs the intake pipe, communicating pipe is installed to the one end of intake pipe, and the bottom of communicating pipe installs pneumatic tube, the air duct is close to the one end of communicating pipe and installs the block pipe, first electro-magnet is installed to the bottom of intake pipe, the ring is installed in the outside of valve rod, and the connecting plate is installed in the.

Preferably, the one end that the air duct was kept away from to the block pipe is installed the second electro-magnet, and blocks the inside one end that is close to the second electro-magnet of pipe and install second reset spring, the one end that second electro-magnet was kept away from to second reset spring is installed second check fender iron plate.

Preferably, a set of iron sheets is symmetrically installed on the outer side of the second grid iron blocking plate.

Preferably, the bottom inside the pneumatic tube is provided with a sliding chute, the sliding chute is provided with a sliding plate through a sliding block, one end of the sliding plate close to the valve body is provided with a hinge rod, and one end of the hinge rod far away from the sliding plate is hinged with the connecting plate.

Preferably, the U-shaped plate is installed at the top of intake pipe, and first reset spring is installed at the inside top of U-shaped plate, first check baffle plate that extends to the intake pipe inside is installed to first reset spring's bottom.

Preferably, a valve cover is installed on one side of the valve body.

Compared with the prior art, the beneficial effects of the utility model are that: the pneumatic self-control quick gas safety cut-off valve is provided with a ring, a hinge rod, a sliding plate and a connecting plate, when the external power is cut off, the first electromagnet loses magnetism, a first reset spring pulls a first grid iron blocking plate to move upwards, so that gas enters the pneumatic tube through the communicating tube, the air pressure pushes the hinge rod through the sliding plate, so that the hinge rod pushes the ring to rotate through the connecting plate, the ring drives the valve rod to rotate, the valve leaf can be closed, the automatic cut-off process is realized, gas leakage is prevented, meanwhile, the device is provided with a blocking tube, a second grid iron blocking plate, an iron sheet, a second reset spring and a second electromagnet, when the external power is cut off, the second electromagnet loses magnetism, the second reset spring pushes the second grid iron blocking plate, the second grid iron blocking plate shields the gas guide tube, so that the gas can be prevented from continuously entering the interior of the valve body, is favorable for improving the sealing performance and preventing the gas leakage.

Drawings

Fig. 1 is a schematic front sectional view of the present invention;

fig. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of a partial structure of the present invention;

fig. 4 is a schematic front sectional view of the occlusion tube of the present invention.

In the figure: 1. a circular ring; 2. a bearing; 3. a valve body; 4. a valve leaf; 5. a valve stem; 6. an air duct; 7. an air inlet pipe; 8. a blocking tube; 9. a U-shaped plate; 10. a first electromagnet; 11. a first return spring; 12. a first grid iron plate; 13. a communicating pipe; 14. a hinged lever; 15. a chute; 16. a sliding plate; 17. a pneumatic tube; 18. a valve cover; 19. a connecting plate; 20. a second grid iron plate; 21. iron sheets; 22. a second return spring; 23. a second electromagnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a quick coal gas safety trip valve of pneumatic automatic control, including valve body 3 and block pipe 8, the intermediate position department of 3 bottoms of valve body installs bearing 2, and bearing 2's internally mounted has the valve rod 5 that extends to 3 inside of valve body, valve leaf 4 is installed in the outside of valve rod 5, air duct 6 is installed at the top of valve body 3, and air duct 6's top installs intake pipe 7, communicating pipe 13 is installed to the one end of intake pipe 7, and communicating pipe 13's bottom installs pneumatic tube 17, air duct 6 is close to communicating pipe 13's one end and installs and blocks pipe 8, first electro-magnet 10 is installed to intake pipe 7's bottom, ring 1 is installed in valve rod 5's the outside, and connecting plate 19 is installed in.

In this implementation:

further, block that 8 one ends of keeping away from air duct 6 of pipe and install second electro-magnet 23, and block that 8 inside one ends that are close to second electro-magnet 23 of pipe and install second reset spring 22, second reset spring 22 keeps away from the one end of second electro-magnet 23 and installs second check fender iron plate 20, when the outside has a power failure, second electro-magnet 23 loses magnetism, second reset spring 22 promotes second check fender iron plate 20, make second check fender iron plate 20 shelter from air duct 6, can prevent that coal gas from continuing to get into inside valve body 3, cooperation valve leaf 4 uses, can play dual blocking effect, be favorable to improving the leakproofness, can prevent that coal gas from leaking.

Furthermore, a set of iron sheets 21 is symmetrically installed on the outer side of the second grid iron blocking plate 20, and the second grid iron blocking plate 20 is convenient to adsorb by matching with the second electromagnet 23.

Further, the inside bottom of pneumatic tube 17 is provided with spout 15, and spout 15 installs sliding plate 16 through the slider, hinge rod 14 is installed to the one end that sliding plate 16 is close to valve body 3, and hinge rod 14 keeps away from the one end of sliding plate 16 and is articulated with connecting plate 19, when the outside has a power failure, atmospheric pressure promotes hinge rod 14 through sliding plate 16, make hinge rod 14 promote ring 1 through connecting plate 19 and rotate, ring 1 drives valve rod 5 and rotates, can make valve leaf 4 closed, realize the automatic cutout process, prevent that the coal gas from leaking.

Further, U template 9 is installed at the top of intake pipe 7, and first reset spring 11 is installed at the inside top of U template 9, and first check fender iron plate 12 that extends to the inside of intake pipe 7 is installed to the bottom of first reset spring 11, and when the outside has a power failure, magnetism is lost to first electro-magnet 10, and first check fender iron plate 12 of first reset spring 11 pulling moves to the top for coal gas passes through communicating pipe 13 and gets into in the pneumatic tube 17.

Further, a valve cover 18 is installed at one side of the valve body 3.

The working principle is as follows: when the device is used, the device is powered on, the first electromagnet 10 and the second electromagnet 23 are electrified to generate magnetism, the second electromagnet 23 adsorbs the iron sheet 21 and the second reset spring 22, so that the second grid iron baffle plate 20 is accommodated in the blocking pipe 8, at the moment, the second grid iron baffle plate 20 compresses the second reset spring 22, the first electromagnet 10 adsorbs the first grid iron baffle plate 12, the first grid iron baffle plate 12 is separated in the air inlet pipe 7, gas can be prevented from entering the communicating pipe 13, the gas enters the valve body 3 through the gas guide pipe 6 and then is output from the device, when the external power is cut off, the first electromagnet 10 and the second electromagnet 23 lose magnetism, the second electromagnet 23 loses magnetism and does not adsorb the second grid iron baffle plate 20 and the iron sheet 21 any more, the second reset spring 22 pushes the second grid iron baffle plate 20 through the elastic force, the second grid iron baffle plate 20 shields the gas guide pipe 6, and can prevent the gas from entering the valve body 3 continuously, can play and block the effect, first electro-magnet 10 loses magnetism, no longer adsorb first check fender iron plate 12, the elastic force of first reset spring 11 makes its first check fender iron plate 12 of pulling move to the top, make coal gas pass through communicating pipe 13 and get into in the pneumatic tube 17, the inside atmospheric pressure of pneumatic tube 17 rises, atmospheric pressure promotes sliding plate 16 and slides on spout 15, sliding plate 16 promotes hinge bar 14, make hinge bar 14 promote ring 1 through connecting plate 19 and rotate, ring 1 drives valve rod 5 and rotates, can make valve leaf 4 closed, cooperation second check fender iron plate 20 uses, can play dual effect of blocking, can prevent that coal gas from leaking.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a quick coal gas safety trip valve of pneumatic automatic control, includes valve body (3) and blocks pipe (8), its characterized in that: bearing (2) are installed to the intermediate position department of valve body (3) bottom, and the internally mounted of bearing (2) has valve rod (5) that extend to valve body (3) inside, valve leaf (4) are installed in the outside of valve rod (5), air duct (6) are installed at the top of valve body (3), and the top of air duct (6) installs intake pipe (7), communicating pipe (13) are installed to the one end of intake pipe (7), and the bottom of communicating pipe (13) installs pneumatic tube (17), air duct (6) are close to the one end of communicating pipe (13) and are installed and block pipe (8), first electro-magnet (10) are installed to the bottom of intake pipe (7), ring (1) is installed in the outside of valve rod (5), and connecting plate (19) are installed in the outside of ring (1).

2. The pneumatic self-control quick gas safety shut-off valve as claimed in claim 1, wherein: the one end that blocks pipe (8) and keep away from air duct (6) is installed second electro-magnet (23), and blocks the inside one end that is close to second electro-magnet (23) of pipe (8) and install second reset spring (22), second reset spring (22) are kept away from the one end of second electro-magnet (23) and are installed second check fender iron plate (20).

3. The pneumatic self-control quick gas safety shut-off valve as claimed in claim 2, wherein: and a group of iron sheets (21) are symmetrically arranged on the outer side of the second grid iron blocking plate (20).

4. The pneumatic self-control quick gas safety shut-off valve as claimed in claim 1, wherein: the bottom of the interior of the pneumatic tube (17) is provided with a sliding groove (15), the sliding groove (15) is provided with a sliding plate (16) through a sliding block, one end, close to the valve body (3), of the sliding plate (16) is provided with a hinge rod (14), and one end, far away from the sliding plate (16), of the hinge rod (14) is hinged to a connecting plate (19).

5. The pneumatic self-control quick gas safety shut-off valve as claimed in claim 1, wherein: u template (9) are installed at the top of intake pipe (7), and first reset spring (11) are installed at the inside top of U template (9), first check fender iron plate (12) that extend to intake pipe (7) inside are installed to the bottom of first reset spring (11).

6. The pneumatic self-control quick gas safety shut-off valve as claimed in claim 1, wherein: and a valve cover (18) is arranged on one side of the valve body (3).