CN116066611A

CN116066611A - Self-closing device in gas pipe

Info

Publication number: CN116066611A
Application number: CN202111284359.2A
Authority: CN
Inventors: 黄健阳
Original assignee: Yongkang Dawei Industry & Trade Co ltd
Current assignee: Yongkang Dawei Industry & Trade Co ltd
Priority date: 2021-11-01
Filing date: 2021-11-01
Publication date: 2023-05-05

Abstract

The invention discloses an internal self-closing device of a gas pipe, and mainly relates to the field of gas pipes. Including the gas pipe, gas pipe one end is the air inlet, the gas pipe other end is the gas outlet, be equipped with the valve body in the gas pipe, the one end that the valve body is close to the gas outlet is equipped with the case, the one end that is close to the air inlet in the valve body is equipped with interior magnetic part, one side that interior magnetic part is close to the case is equipped with the magnetic seal spare that is used for shutoff case, still be equipped with balance mechanism between magnetic seal spare and the interior magnetic part when the gas pipe normal use, through the balance mechanism makes interior magnetic part just make the case open to the magnetic attraction of magnetic seal spare, and enable the magnetic seal spare to be blown thereby shutoff case when revealing and leading to the air current increase appears in the gas pipe. The invention has the beneficial effects that: can be fast and automatically cut off when the gas is leaked, ensure the gas use safety of the user, and has simple structure, and is convenient for the user to install and use.

Description

Self-closing device in gas pipe

Technical Field

The invention relates to the field of gas pipes, in particular to an internal self-closing device of a gas pipe.

Background

The prior art Chinese patent number CN201510388513.9 discloses an automatic gas-cutting flameout device for dangerous combustion of a gas channel pipe, which has reasonable structure, sensitive action, low production cost, simple and convenient installation and use, safe and reliable use and can effectively prevent or reduce the occurrence of fire accidents;

however, the air breaking valve in the patent pipeline is tightly controlled in the pipeline by a nylon wire, the air breaking can not be immediately performed when the fuel gas leaks, the stay wire is fused only after the hose is fused, the air breaking valve can automatically break the air at the moment, the fuel gas can be combusted for a long time after leakage, and the safety performance is poor.

Also disclosed in patent number CN201721063284.4 is a device for controlling the external fusing of a gas channel for automatically cutting off gas when the gas pipe or gas appliance (stove) burns out, the fusible long device which is contained with the valve core can be fused rapidly, the valve core is reset automatically to close and cut off gas, and the fire is extinguished immediately;

however, the above patent does not automatically cut off the gas when the gas leaks, and the structure is complex, so that the user is inconvenient to install.

Disclosure of Invention

The invention aims to provide an automatic closing device in a gas pipe, which can quickly and automatically cut off gas when gas leaks, ensures the gas use safety of a user, has a simple structure and is convenient for the user to install and use.

The invention aims to achieve the aim, and the aim is achieved by the following technical scheme:

the utility model provides a self-closing device in gas pipe, includes the gas pipe, gas pipe one end is the air inlet, the gas pipe other end is the gas outlet, be equipped with the valve body in the gas pipe, the one end that the valve body is close to the gas outlet is equipped with the case, the one end that is close to the air inlet in the valve body is equipped with interior magnetic part, one side that the interior magnetic part is close to the case is equipped with the magnetic seal spare that is used for shutoff case, still be equipped with balance mechanism between magnetic seal spare and the interior magnetic part when the gas pipe normal use, through the balance mechanism makes interior magnetic part just make the case open to the magnetic seal spare magnetic attraction, and enable the magnetic seal spare by blowing thereby shutoff case when leakage leads to the air current increase appears in the gas pipe.

Further, the magnetic sealing element is a steel ball.

Further, the magnetic sealing piece comprises a conical plug, a connecting rod and a top cap made of metal, wherein the conical plug, the connecting rod and the top cap are sequentially connected, and the conical plug is matched with the valve core.

Further, the balancing mechanism is a spring.

Further, the balance mechanism comprises an adjusting frame arranged in the valve body, an adjusting rod in threaded connection with the adjusting frame, and an adjusting head arranged at one end of the adjusting rod far away from the valve core.

Further, an auxiliary magnetic attraction device is arranged outside the gas pipe and corresponds to the position of the valve body, the position of the magnetic sealing piece is moved through the auxiliary magnetic attraction device, and auxiliary magnetic attraction is applied to the magnetic sealing piece.

Further, the auxiliary magnetic attraction device comprises a pipe sleeve sleeved outside the gas pipe, a moving column is arranged on the pipe sleeve in an axial sliding mode, and an outer magnetic piece is arranged at one end, close to the magnetic sealing piece, of the moving column.

Further, a return spring is arranged in the pipe sleeve wall and is positioned on one side of the movable column close to the valve core.

Further, a T-shaped sliding groove is formed in the pipe sleeve, an installation sleeve is connected with the external thread of the movable column, and sliding teeth which are in sliding connection with the sliding groove are arranged outside the installation sleeve.

Further, a filter screen is arranged at one end of the valve body, which is close to the air inlet.

Compared with the prior art, the invention has the beneficial effects that:

when the gas-saving type sealing valve is used, the magnetic attraction between the inner magnetic piece and the magnetic sealing piece is regulated through the balancing mechanism, so that the magnetic sealing piece is in a state of being just attracted by the inner magnetic piece and being in contact with the balancing mechanism, when the gas-saving type sealing valve is used daily, the magnetic sealing piece is attracted by the inner magnetic piece to enable the valve core to be opened, when a pipeline at the gas outlet is broken and leaked, the gas pressure in the gas pipe is instantaneously increased, the airflow power in the gas pipe is greater than the attraction between the inner magnetic piece and the magnetic sealing piece, the airflow blows the magnetic sealing piece to be separated from the attraction between the inner magnetic piece, and therefore the magnetic sealing piece moves the sealing valve core to seal the pipeline, the effect of sealing and blocking a gas source is achieved.

Drawings

Fig. 1 is a schematic structural view of embodiment 1 of the present invention.

Fig. 2 is a side view in cross section of the structure of embodiment 1 of the present invention.

Fig. 3 is a schematic structural view of embodiment 2 of the present invention.

Fig. 4 is a schematic structural view of embodiment 3 of the present invention.

The reference numbers shown in the drawings:

1. a gas pipe; 2. an air inlet; 3. an air outlet; 4. a valve body; 5. a valve core; 6. an inner magnetic member; 7. steel balls; 8. a conical plug; 9. a connecting rod; 10. a top cap; 11. a spring; 12. an adjusting frame; 13. an adjusting rod; 14. adjusting the head; 15. a pipe sleeve; 16. a moving column; 17. an outer magnetic member; 18. a return spring; 19. a chute; 20. a mounting sleeve; 21. sliding teeth; 22. and (3) a filter screen.

Detailed Description

The invention will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the invention, and such equivalents are intended to fall within the scope of the invention as defined herein.

The balance mechanism and the inner magnetic piece 6 related in the invention are all of ventilation structures, so that the normal air supply requirement of the gas pipe 1 is ensured, the invention is mainly used for sectional matching of a rubber hose and a stainless steel corrugated pipe gas pipe, and the magnetic attraction force can be set by setting the maximum preset value of the air flow according to the heat value and the gas flow pressure value of different gas tools by a person skilled in the art. The larger the gas flow, the larger the magnetic attraction force, and the smaller the distance between the inner magnetic piece and the magnetic sealing piece, the shorter the balancing mechanism.

Example 1: the utility model provides a self-closing device in gas pipe, including gas pipe 1, gas pipe 1's one end is the air inlet 2 that connects the air supply, gas pipe 1's the other end is the gas outlet 3 that connects the gas apparatus, be equipped with valve body 4 in the gas pipe 1, valve body 4 outer wall and gas pipe 1 inner wall are closely laminated, valve body 4 is close to gas outlet 3's one end is equipped with case 5, air current of air inlet 2 flows from case 5 to gas outlet 3, be equipped with interior magnetic part 6 in the valve body 4 near air inlet 2's one end, in order to guarantee the unblocked of air current, interior magnetic part 6 selects annular strong magnet of use, interior magnetic part 6 is equipped with the steel ball 7 that is used for shutoff case 5 near one side of case 5, steel ball 7 has magnetism, this is the well known common sense of prior art, still be equipped with overhead spring 11 between steel ball 7 and the interior magnetic part 6, through the gas apparatus air current maximum predetermined value that the gas pipe is fit for, the spring 11 of suitable for adjusting interior magnetic part 6 to steel ball 7, namely spring 11 length and gas flow is inversely proportional to control interior magnetic part 6 to flow 7, in order to guarantee the unblocked air current, in order to guarantee that the air current is in case 1 is in the case that the valve core 7 is opened to be in the magnetic part 5 when just in the time of the magnetic part 5 is opened to the magnetic part is in the state when the magnetic part 5 is opened to the magnetic part is blown off to the magnetic part 5, when the magnetic part is in the magnetic part is opened to the case 5 and when the magnetic part is in the state of the case 5 and when the magnetic part is in the state of the valve 5 is just being opened and when the magnetic part is in the state; the gas pipe 1 is provided with a pipe sleeve 15 corresponding to the position of the valve body 4, the pipe sleeve 15 is provided with a T-shaped chute 19 with two closed ends along the axial direction, the chute 19 is internally provided with a movable column 16, one end of the movable column 16, which is close to the steel ball 7, is provided with an outer magnetic part 17, the outer magnetic part 17 is preferably a powerful magnet, the magnetic attraction of the outer magnetic part 17 can also act on magnetic sealing parts such as the steel ball 7 and can correspondingly control the steel ball 7 and move the steel ball 7, the movable column 16 is externally connected with a mounting sleeve 20 in a threaded manner, the mounting sleeve 20 is externally provided with sliding teeth 21 which are in sliding connection with the chute 19, so that the mounting sleeve 20 can be prevented from rotating when being convenient for sliding, the first steel ball 7 and the valve core 5 are blocked and closed, the movable column 16 can be slid when the valve core 5 is required to be restored, the outer magnetic part 17 is driven to the valve core 5, the steel ball 17 is attracted 7, and then the magnetically attracted steel ball 7 is pulled back to the tip of the tower-shaped spring 11 through the movable column 16, and the valve core 5 is restored to the state. Secondly, the outer magnetic piece 17 at the bottom end of the movable column 16 can also assist in controlling and adjusting the tensile strength of the magnetically attracted steel ball 7 and the gas flow, and further ensures that the steel ball 7 can be separated from the inner magnetic piece 6 in time to plug the valve core 5 when the gas leaks on the premise of ensuring normal and smooth use of the gas. A return spring 18 is arranged in the wall of the pipe sleeve 15 on one side of the moving column 16, which is close to the valve core 5, when the valve core 5 is closed by the steel balls 7, and after the moving column 16 slides to the valve core 5 to adsorb the steel balls 7, the return spring 18 is convenient for automatic return of the moving column 16, and the operation is more convenient and labor-saving.

The gas pipeline can be automatically plugged by quick reaction when gas leakage occurs due to gas pipeline rupture, gas leakage is timely avoided, use safety is guaranteed, and the gas pipeline plugging device is simple in structure and convenient to install.

Example 2: the utility model provides a self-closing device in gas pipe, includes gas pipe 1, gas pipe 1 one end is the air inlet 2 that connects the air supply, gas pipe 1 other end is the gas outlet 3 that connects the gas apparatus, be equipped with valve body 4 in the gas pipe 1, valve body 4 outer wall and gas pipe 1 inner wall closely laminate, valve body 4 is close to the one end of gas outlet 3 and is equipped with case 5, the air current of air inlet 2 flows from case 5 to air outlet 3, valve body 4 is interior to be close to air inlet 2 one end is equipped with interior magnetic part 6, in order to guarantee the unblocked of air current, interior magnetic part 6 selects annular strong magnet, interior magnetic part 6 is close to one side of case 5 and is equipped with the steel ball 7 that is used for shutoff case 5 in the valve body 4 of valve body 6 one side close to air inlet 2 is equipped with alignment jig 12, opens a plurality of air vents on the alignment jig 12, an adjusting rod 13 is connected to the adjusting frame 12 in a threaded manner, one end of the adjusting rod 12 penetrates through the inner magnetic piece 6 to be in contact with the steel balls 7, an adjusting head 14 is arranged at the other end of the adjusting rod 13, an adjusting groove is formed in the adjusting head 14, the adjusting head 14 is rotated by a screwdriver to drive the adjusting rod 13 to rotate, the adjusting rod 13 can move forwards and backwards through the adjusting frame 12 in threaded connection, the distance between the steel balls 7 and the inner magnetic piece 6 is adjusted through pushing and pulling the adjusting rod 13, when the gas pipe 1 is used normally, the steel balls 7 are just attracted by the inner magnetic piece 6 to lean against the end of the adjusting rod through the adjusting rod 13, the valve core 5 is in an open state, and when leakage occurs in the gas pipe 1, the air flow is increased to be greater than the magnetic attraction between the inner magnetic piece 6 and the steel balls 7, the steel balls 7 can be blown to the valve core 5 by the air flow, and the valve core 5 is blocked; the one end that valve body 4 is close to air inlet 2 is equipped with filter screen 22, prevents impurity entering.

When the length of the adjusting rod 13 is adjusted, the magnetic force is adjusted to be in balance with the gas pressure, and when the steel ball 7 is reset to be turned on again after the gas is cut off, the steel ball 7 can be automatically sucked back to the end part of the adjusting rod 13 under the action of the magnetic attraction of the inner magnetic piece 6 after the gas appliance switch is turned off. If the gas in the pipe is restored to the on state, and if the magnetic force control has a small error and can not automatically suck back, the steel ball 7 can vibrate and be magnetically sucked to reset at the outer part of the gas pipe 1 at the position of the lower valve body 4 by flicking a finger, and the valve core 5 is also in the on state, the simple setting operation is also practical and convenient.

Example 3: the utility model provides a self-closing device in gas pipe, including gas pipe 1, gas pipe 1 one end is the air inlet 2 of connecing the air supply, gas pipe 1 other end is the gas outlet 3 of connecing the gas apparatus, be equipped with valve body 4 in the gas pipe 1, valve body 4 outer wall and gas pipe 1 inner wall closely laminate, valve body 4 is close to the one end of gas outlet 3 and is equipped with case 5, the air current of air inlet 2 flows from case 5 to gas outlet 3, valve body 4 is interior to be equipped with interior magnetic part 6 near air inlet 2 one end, in order to guarantee the unblocked of air current, interior magnetic part 6 selects annular strong magnet, one side that interior magnetic part 6 is close to case 5 is equipped with conical plug 8, connecting rod 9, the top cap 10 that has magnetic metal material that connects in proper order, conical plug 8 is used for shutoff case 5, still is equipped with spring 11 between top cap 10 and the interior magnetic part 6, the magnetism suction of interior magnetic part 6 to top cap 10 is adjusted through selecting suitable length, suitable elasticity coefficient's spring 11, namely, the length of the spring 11 is inversely proportional to the gas flow to adjust the magnetic attraction of the inner magnetic piece 6 to the top cap 10, when the gas pipe 1 is in normal use, the top cap 10 is just attracted by the inner magnetic piece 6 to lean against the end part of the spring 11 through the spring 11, the valve core 5 is in an open state, and when the gas pipe 1 leaks to cause the gas flow to increase to be larger than the magnetic attraction between the inner magnetic piece 6 and the top cap 10, the conical plug 8 can be blown by the gas flow to move towards the valve core 5, so as to seal the valve core 5, the connecting rod 9 penetrates through the tip of the conical plug 8 and protrudes out of the valve core 5, a ventilation supporting plate is arranged in the valve body 4 and positioned at the side of the valve core 5 close to the gas outlet 3, a ventilation supporting plate is also arranged in the valve body 4 and positioned between the conical plug 8 and the top cap 10, the end part and the middle part of the connecting rod 9 respectively penetrate through the two supporting plates, the supporting plate can play an auxiliary supporting role on the connecting rod 9, so that the conical plug 8 is aligned with the valve core 5 and moves horizontally.

The patent is not limited to the combination structure of the 3 embodiments, and reasonable magnetic sealing elements and balancing mechanisms can be selected for matching use on the premise of being not hindered.

Claims

1. The utility model provides a self-closing device in gas pipe, includes gas pipe (1), gas pipe (1) one end is air inlet (2), gas pipe (1) other end is gas outlet (3), its characterized in that: be equipped with valve body (4) in gas pipe (1), the one end that valve body (4) is close to gas outlet (3) is equipped with case (5), the one end that is close to gas inlet (2) in valve body (4) is equipped with interior magnetic part (6), one side that interior magnetic part (6) is close to case (5) is equipped with the magnetic seal spare that is used for shutoff case (5), still be equipped with balance mechanism between magnetic seal spare and the interior magnetic part (6) gas pipe (1) normal use, through the magnetic attraction of balance mechanism messenger interior magnetic part (6) to magnetic seal spare just makes case (5) open, and can make the magnetic seal spare by blowing when revealing and leading to the air current increase in gas pipe (1) shutoff case (5).

2. The gas pipe in-pipe self-closing apparatus according to claim 1, wherein: the magnetic sealing piece is a steel ball (7).

3. The gas pipe in-pipe self-closing apparatus according to claim 1, wherein: the magnetic sealing piece comprises a conical plug (8), a connecting rod (9) and a top cap (10) made of metal, which are sequentially connected, wherein the conical plug (8) is matched with the valve core (5).

4. The gas pipe in-pipe self-closing apparatus according to claim 1, wherein: the balancing mechanism is a spring (11).

5. The gas pipe in-pipe self-closing apparatus according to claim 1, wherein: the balance mechanism comprises an adjusting frame (12) arranged in the valve body (4), an adjusting rod (13) in threaded connection with the adjusting frame (12), and an adjusting head (14) arranged at one end of the adjusting rod (13) far away from the valve core (5).

6. The gas pipe in-pipe self-closing apparatus according to claim 1, wherein: an auxiliary magnetic attraction device is arranged outside the gas pipe (1) and corresponds to the position of the valve body (4), the position of the magnetic sealing element is moved through the auxiliary magnetic attraction device, and auxiliary magnetic attraction force is applied to the magnetic sealing element.

7. The gas pipe in-pipe self-closing apparatus according to claim 6, wherein: the auxiliary magnetic attraction device comprises a pipe sleeve (15) sleeved outside the gas pipe (1), a moving column (16) is arranged on the pipe sleeve (15) in an axial sliding mode, and an outer magnetic piece (17) is arranged at one end, close to the magnetic sealing piece, of the moving column (16).

8. The gas pipe in-pipe self-closing apparatus according to claim 7, wherein: a return spring (18) is arranged in the wall of the pipe sleeve (15), and the return spring (18) is positioned on one side of the moving column (16) close to the valve core (5).

9. The gas pipe in-pipe self-closing apparatus according to claim 7, wherein: the pipe sleeve (15) is internally provided with a T-shaped sliding groove (19), the movable column (16) is externally connected with a mounting sleeve (20) in a threaded manner, and sliding teeth (21) which are in sliding connection with the sliding groove (19) are arranged outside the mounting sleeve (20).

10. A gas pipe in-pipe self-closing apparatus according to any one of claims 1-9, wherein: one end of the valve body (4) close to the air inlet (2) is provided with a filter screen (22).