CN221347880U

CN221347880U - Gas shut-off valve

Info

Publication number: CN221347880U
Application number: CN202322255070.9U
Authority: CN
Inventors: 叶秀丰; 洪萍萍
Original assignee: Jiangsu Xiucheng Smart City Service Co ltd
Current assignee: Jiangsu Xiucheng Smart City Service Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-07-16
Anticipated expiration: 2033-08-22

Abstract

The utility model relates to the technical field of valves, and discloses a gas shut-off valve. The valve comprises a valve body, wherein one side of the valve body is movably connected with a connecting sealing device, the middle part of the top end of a valve cover is fixedly connected with an electromagnetic control device, the inside of the valve body is movably connected with a valve rod, the bottom of the valve rod is fixedly connected with a valve core.

Description

Gas shut-off valve

Technical Field

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

Background

A gas shut-off valve is a device for controlling the supply of gas, and is usually installed on a gas pipe. Its main function is to cut off the gas supply in emergency to prevent the gas leakage from causing fire, explosion, etc. The gas shut-off valve is generally composed of a valve body, a valve cover, a valve core, a control device, etc., and by the operation of the control device, the opening or closing of the gas supply can be achieved. The development of gas shut-off valves has undergone continuous improvements and innovations. Modern gas shut-off valves generally employ advanced techniques and materials with high reliability and safety. Some fuel gas shut-off valves are also equipped with alarm devices, which can give an alarm when fuel gas leaks, reminding the user to take measures in time. In general, the background of the gas shut-off valve is to ensure the safety of gas use and prevent dangerous situations caused by gas leakage. It plays an important role in the gas supply system and is an important device for people to live safely.

The existing gas shut-off valve often needs to be manually closed when the use process is powered off, so that the safety of workers is possibly endangered, meanwhile, the existing gas shut-off valve is often realized through the butt joint of the flange plates when being installed, the butt joint sealing performance of the flange plates is not particularly good, the leakage of natural gas is possibly caused, a large number of nut screws are needed for installation and disassembly, and the valve is not easy to disassemble and maintain when damaged.

Disclosure of utility model

In order to overcome the above-mentioned drawbacks of the prior art, the present utility model provides a gas shut-off valve to solve the above-mentioned problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a gas trip valve, includes the valve body, the air inlet has been seted up to one side of valve body, the gas outlet has been seted up to the opposite side of valve body, the connecting chamber has been seted up in the centre of valve body inside, the top fixedly connected with in connecting chamber is in the disk seat, threaded hole has been seted up at the valve body top, one side swing joint of valve body has connection sealing device, the top fixedly connected with valve gap of valve gap, the top fixedly connected with nut of valve gap top, the middle part fixedly connected with electromagnetic control device on valve gap top, the inside swing joint of valve body has the valve rod, the bottom fixedly connected with case of valve rod, the quantity of connection sealing device is two, respectively with air inlet and gas outlet swing joint in the both sides of valve body, the radius of case is the same with the radius of disk seat inner wall, electromagnetic control device includes quiet iron core, the bottom fixedly connected with reset spring of quiet iron core, the bottom fixedly connected with movable iron core of reset spring, the inside both sides fixedly connected with solenoid of electromagnetic control device, connection sealing device includes, one side of connecting pipe has seted up first inside groove, one side fixedly connected with sealing device cup joints the outside fixedly connected with sealing washer.

Further, the fixed ring includes fixed lower ring and fixed ring of going up, the second inside groove has been seted up to fixed lower ring inside, the third inside groove has been seted up to the inside of fixed ring of going up, fixed lower ring passes through the connection piece with fixed ring of going up and realizes fixed connection, the both ends fixedly connected with second loose axle of connection piece, one side fixedly connected with first loose axle of fixed lower ring, the outside fixedly connected with mounting of first loose axle.

Further, the mounting includes rotatory nut fixing screw, rotatory nut fixing screw's lower extreme swing joint have, lower extreme fixedly connected with fixed block, the connecting hole has been seted up at the middle part of fixed block.

Furthermore, the fixed connection of the valve rod and the movable iron core realizes the fixed connection of the electromagnetic control device at the top end of the valve body.

The utility model has the technical effects and advantages that:

1. According to the utility model, the electromagnetic valve control device is used, in the electrifying process, the electromagnetic coil generates electromagnetic force, so that the movable iron core and the static iron core generate attractive force, the movable iron core moves upwards, the valve rod connected with the movable iron core drives the valve core to pull upwards, the valve is opened, and under the condition of power failure, the electromagnetic coil stops working, so that the attractive force of the movable iron core disappears and falls down, and the valve core at the lower end of the valve rod is overlapped with the valve seat to finish closing the valve, thereby facilitating the use of equipment without manual operation and protecting the safety of personnel.

2. According to the utility model, the connecting sealing device is arranged, and the quick installation of the gas shut-off valve and the pipeline is realized through the two connecting pipes and the fixed ring, so that the sealing ring at one side of the connecting pipes also prevents the leakage condition of gas at the connecting position during installation, is beneficial to the quick installation and the disassembly of the gas shut-off valve during maintenance, and reduces the working time.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic cross-sectional view of the valve body of the present utility model.

Fig. 3 is a schematic cross-sectional structure of the electromagnetic control device of the present utility model.

Fig. 4 is an exploded view of the connection sealing device of the present utility model.

Fig. 5 is a schematic structural view of a fixing ring according to the present utility model.

Fig. 6 is a schematic structural view of a fixing member according to the present utility model.

The reference numerals are: 1. a valve body; 101. an air inlet; 102. an air outlet; 103. a connecting cavity; 104. a valve seat; 105. a threaded hole; 2. connecting a sealing device; 3. a valve cover; 301. a nut; 4. an electromagnetic control device; 401. a stationary core; 402. a return spring; 403. a movable iron core; 404. an electromagnetic coil; 5. a valve stem; 6. a valve core; 7. a connecting pipe; 701. a first inner tank; 8. a seal ring; 9. a fixing ring; 901. fixing the lower ring; 9011. a second inner tank; 9012. a first movable shaft; 902. a connecting sheet; 9021. a second movable shaft; 903. fixing an upper ring; 9031. a third inner tank; 904. a fixing member; 9041. rotating the nut; 9042. a screw; 9043. a fixed block; 9044. and a connection hole.

Detailed Description

The embodiments of the present utility model will be described more fully with reference to the drawings in the present utility model, and the configurations of the structures described in the following embodiments are merely examples, and the gas shutoff valve according to the present utility model is not limited to the configurations described in the following embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making any creative effort are within the scope of the present utility model.

Referring to fig. 1-2, the utility model provides a gas shut-off valve, comprising a valve body 1, an air inlet 101 is arranged at one side of the valve body 1, an air outlet 102 is arranged at the other side of the valve body 1, a connecting cavity 103 is arranged in the middle of the interior of the valve body 1, the top of the connecting cavity 103 is fixedly connected with a valve seat 104, a threaded hole 105 is arranged at the top of the valve body 1, a connecting sealing device 2 is movably connected at one side of the valve body 1, a valve cover 3 is fixedly connected with a nut 301 at the top of the valve cover 3, an electromagnetic control device 4 is fixedly connected at the middle of the top of the valve cover 3, a valve rod 5 is movably connected at the interior of the valve body 1, a valve core 6 is fixedly connected at the bottom of the valve rod 5, the number of the connecting sealing devices 2 is two, the two connecting sealing devices are respectively movably connected with the two sides of the valve body 1 and the air outlet 102, so that the device can be connected on a pipeline, the radius of case 6 is the same with the radius of disk seat 104 inner wall, the condition that the gas can not appear inside revealing when closing the state has been guaranteed, electromagnetic control device 4 includes quiet iron core 401, the bottom fixedly connected with reset spring 402 of quiet iron core 401, the bottom fixedly connected with of reset spring 402 moves iron core 403, electromagnetic control device 4 inside both sides fixedly connected with solenoid 404 can make it produce electromagnetic attraction, thereby make and move iron core 402 move, connect sealing device 2 includes connecting pipe 7, first inside groove 701 has been seted up to one side of connecting pipe 7, one side fixedly connected with sealing washer 8 of connecting pipe 7, make the leakproofness of junction further improve, the safety of staff has been ensured, fixed ring 9 has been cup jointed in the outside activity of connecting pipe 7.

In a preferred embodiment, the fixed ring 9 includes a fixed lower ring 901 and a fixed upper ring 903, the second inner groove 9011 is provided in the fixed lower ring 901, the third inner groove 9031 is provided in the fixed upper ring 903, the fixed lower ring 901 and the fixed upper ring 903 are fixedly connected through a connecting piece 902, two ends of the connecting piece 902 are fixedly connected with a second movable shaft 9021, one side of the fixed lower ring 901 is fixedly connected with a first movable shaft 9012, and the outside of the first movable shaft 9012 is fixedly connected with a fixing piece 904, so that the quick mounting and dismounting of the fuel gas cut-off valve are realized, and the working time of maintenance is reduced.

In a preferred embodiment, the fixing piece 904 includes a rotary nut fixing screw 9042, wherein the lower end of the rotary nut fixing screw 9042 is movably connected with a fixing block 9043, the lower end of the fixing block 9042 is fixedly connected with a connecting hole 9044 is formed in the middle of the fixing block 9043.

In a preferred embodiment, the fixed connection of the valve stem 5 to the plunger 403 allows the fixed connection of the electromagnetic control device 4 to the top end of the valve body 1, so that the closing of the valve is automated, reducing the operator's arrangement.

The working principle of the utility model is as follows: when the gas shut-off valve is used, the electromagnetic control device 4 is electrified firstly, the electromagnetic coil 404 generates electromagnetic suction force after the electrification, so that the movable iron core 403 and the static iron core 401 generate suction force, the movable iron core 403 moves upwards to drive the valve core 6 on the valve rod 5 to move upwards, thereby opening the valve, the circulation of gas is realized, the electromagnetic coil 404 stops working under the condition of power failure or when gas leakage is detected, at the moment, the suction force of the movable iron core 403 and the static iron core 401 disappears, the movable iron core can slide downwards, so that the valve core 6 on the valve rod moves downwards until the valve core is overlapped with the valve seat 104, the valve is closed, when the gas shut-off valve is installed, the quick installation and the disassembly can be realized by connecting and sealing devices 2 of the air inlets 101 and the air outlets 102 on two sides of the valve body 1, the connecting pipes 7 are sleeved in pipelines needing to be installed firstly, then the sealing ring 8 is put in the first inner groove 701, then the two connecting pipes 7 are butted, the fixed and the fixed ring 902 is divided into the fixed upper ring 903 and the fixed upper ring 902 through the use of the fixed ring 9, the two connecting rings 901 are connected with the two connecting rings through the rotating shafts, and the two connecting rings 902 are fixedly connected with the inner walls of the two connecting rings 902, and the two connecting rings 9031 are fixedly connected with the inner groove 9031 through the two connecting rings, and finally, and the two connecting pieces are fixedly connected with the inner connecting rings 9031 through the two connecting rings and the connecting rings.

Finally: the foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. The utility model provides a gas shut-off valve, includes valve body (1), its characterized in that: an air inlet (101) is formed in one side of the valve body (1), an air outlet (102) is formed in the other side of the valve body (1), a connecting cavity (103) is formed in the middle of the inside of the valve body (1), the top of the connecting cavity (103) is fixedly connected with a valve seat (104), a threaded hole (105) is formed in the top of the valve body (1), a connecting sealing device (2) is movably connected to one side of the valve body (1), a valve cover (3) is fixedly connected to the top of the valve body (1), a nut (301) is fixedly connected to the top of the valve cover (3), an electromagnetic control device (4) is fixedly connected to the middle of the top of the valve cover (3), a valve rod (5) is movably connected to the bottom of the valve rod (5), the number of the connecting sealing devices (2) is two, the number of the connecting sealing devices is the same as the radius of the inner wall of the valve seat (104) on two sides of the valve body (1) respectively, the air inlet (101) and the air outlet (102) are movably connected to each other, the electromagnetic control device (4) comprises a static iron core (401), a reset iron core (402) is fixedly connected to the bottom of the valve core (401), a reset spring (401) and the reset iron core (402) is fixedly connected to the reset iron core (401), electromagnetic coil (404) is fixedly connected to two sides of the inside of electromagnetic control device (4), connect sealing device (2) to include connecting pipe (7), first inside groove (701) has been seted up to one side of connecting pipe (7), one side fixedly connected with sealing washer (8) of connecting pipe (7), fixed ring (9) have been cup jointed in the outside activity of connecting pipe (7).

2. A gas shut-off valve as defined in claim 1 wherein: the fixed ring (9) is including fixed lower ring (901) and fixed ring (903) of going up, second inside groove (9011) have been seted up to fixed lower ring (901) inside, third inside groove (9031) have been seted up to the inside of fixed ring (903) of going up, fixed lower ring (901) and fixed ring (903) of going up realize fixed connection through connection piece (902), the both ends fixedly connected with second loose axle (9021) of connection piece (902), one side fixedly connected with first loose axle (9012) of fixed lower ring (901), the outside fixedly connected with mounting (904) of first loose axle (9012).

3. A gas shut-off valve as defined in claim 2 wherein: the fixing piece (904) comprises a screw rod (9042), a rotary nut (9041) is movably connected to the upper end of the screw rod (9042), a fixing block (9043) is fixedly connected to the lower end of the screw rod (9042), and a connecting hole (9044) is formed in the middle of the fixing block (9043).

4. A gas shut-off valve as defined in claim 1 wherein: the valve rod (5) is fixedly connected with the movable iron core (403).