CN111853304A - Gas pipeline self-closing valve - Google Patents
Gas pipeline self-closing valve Download PDFInfo
- Publication number
- CN111853304A CN111853304A CN202010032564.9A CN202010032564A CN111853304A CN 111853304 A CN111853304 A CN 111853304A CN 202010032564 A CN202010032564 A CN 202010032564A CN 111853304 A CN111853304 A CN 111853304A
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- Prior art keywords
- magnet
- channel
- gas
- fixedly connected
- pull rod
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
- F16K31/365—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor the fluid acting on a diaphragm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a gas pipeline self-closing valve which comprises a valve body, wherein a channel for gas to pass through is arranged in the valve body in a penetrating manner, a metal pull rod capable of moving up and down is arranged in the channel, a first magnet capable of moving up and down is arranged in the channel, the first magnet is positioned below the pull rod and fixedly connected with a clamping seat through a screw, a notch is arranged on the clamping seat, a second magnet is fixedly connected in the notch, the pull rod is connected with the first magnet, the second magnet and the clamping seat through magnetic force, a sealing element capable of sealing the channel is arranged in the channel, and a third magnet is fixedly connected to one end of the sealing element. The gas pressure is greater than the set maximum value and less than the set minimum value in the using process of the device through the arrangement of a series of structures, the valve body is closed when the flow is greater than the set maximum value, and the gas inlet cannot be opened when the pipeline pressure is greater than the set opening pressure, so that the safety performance of the device in the using process is ensured.
Description
Technical Field
The invention relates to the field of natural gas household pipeline valve equipment, in particular to a gas pipeline self-closing valve.
Background
With the popularization of the national natural gas, the users using the natural gas are more and more, and accidents caused by gas leakage are frequent. The main pipeline pressure of natural gas company is all higher, and under the condition that the regulator device appears unusually not in time discovering, the high pressure can directly supply to the family user and cause danger, and domestic gas pipeline is connected with the stove and needs one section coupling hose, because of droing, ageing, causes the gas leakage to cause the accident because of reasons such as insect pest damage. The existing gas self-closing valve has various varieties, can solve the safety problem of partial gas leakage, some products need to use electric energy as power, and lose action to cause personnel injury and property loss when no power supply is available, other existing products are basically in link transmission, and the link transmission of the products can further reduce the flow required by a user to cause gas cut-off when the pressure of a pipeline is reduced.
Disclosure of Invention
The present invention aims to solve the above technical problems and to provide a gas pipe self-closing valve which effectively solves the problems of the background art.
The technical scheme of the invention is as follows: a gas pipeline self-closing valve comprises a valve body, a channel for gas to pass through is arranged in the valve body in a penetrating mode, a metal pull rod capable of moving up and down is arranged in the channel, a first magnet capable of moving up and down is arranged in the channel and located below the pull rod, the first magnet is fixedly connected with a clamping seat through screws, a notch is formed in the clamping seat, a second magnet is fixedly connected in the notch, the pull rod is connected with the first magnet, the second magnet and the clamping seat through magnetic force, a sealing element capable of sealing the channel is arranged in the channel, a third magnet is fixedly connected at one end of the sealing element and faces part of the second magnet, when the internal gas pressure of the valve body is smaller than a preset minimum value, the pull rod, the first magnet, the second magnet and the clamping seat fall under the influence of gravity and the magnetic force of the first magnet and an iron sheet, the second magnet attracts the third magnet to slide in a direction approaching itself, so that the sealing member seals the passage.
Preferably, the side of the second magnet facing the third magnet is provided with the N pole and the S pole of the magnet at the same time, and when the pressure of the gas in the valve body is smaller than a predetermined minimum value, an attractive force is generated between the second magnet and the third magnet to make the passage in a closed state, and when the pressure of the gas in the valve body is larger than a predetermined maximum value, and when the pressure of the gas in the valve body is larger than the predetermined maximum value, the pull rod is disconnected from the first magnet, the second magnet and the clamping seat move downwards, an attractive force is generated between the second magnet and the third magnet to make the passage in a closed state, and the sealing member seals the through hole.
Preferably, the sealing element comprises a connecting rod and a sealing head, a first partition plate capable of separating the connecting rod from the channel is arranged in the channel, a first through hole is formed in the first partition plate in a penetrating mode, the connecting rod can slide in the first through hole, the sealing head can seal the first through hole, and the sealing head is fixedly connected with the connecting rod.
Preferably, a rubber membrane is arranged in the channel, the rubber membrane divides the channel into an upper chamber and a lower chamber which are independent, the pull rod penetrates through the rubber membrane, the pull rod is fixedly connected with the rubber membrane, and when the air pressure in the channel is larger than a preset maximum value, the rubber membrane expands towards the upper chamber to enable the pull rod to move upwards so that the pull rod is disconnected from the first magnet.
Preferably, be provided with in the one end that the passageway admits air and be equipped with the isolated mechanism that can seal the passageway, isolated mechanism includes fixing base and sealed piece, and the fixing base will the passageway is sealed, and run through set up the second through-hole that supplies the gas circulation on the fixing base, sealed piece can slide in the passageway when gas pressure in the passageway is greater than predetermined maximum value, and sealed piece can prevent that the gas from continuing to pass the second passageway.
Preferably, a positioning frame for sealing the passage is fixedly connected in the passage, the gas firstly passes through the fixing seat and then passes through the positioning frame, a pipeline for gas to flow is arranged on the positioning frame, a first spring is sleeved outside the pipeline, the free end of the first spring is abutted against the sealing block, the cross section of the sealing block is in a shape of a plus sign, a third through hole is further formed in the fixing seat, one branch of the sealing block located on the horizontal position is inserted into the third through hole, the other branch of the sealing block located on the horizontal position is inserted into the pipeline, when the gas flow rate in the passage is larger than a preset maximum value, the gas passes through the second through hole and is blown to the branch of the vertical position of the sealing block, and the sealing block is pushed into the pipeline to seal the pipeline.
Preferably, a valve button is rotatably arranged at a position, close to the air outlet end, of the valve body, a ball valve capable of rotating is arranged in the channel, a third through hole is formed in the ball valve in a penetrating mode, the ball valve is connected with the valve button through a screw, and a rubber ring is arranged on the screw.
Preferably, a limiting guide seat and a supporting seat are arranged in the channel, the limiting guide seat is fixedly connected with the supporting seat, an iron sheet is fixedly connected to the limiting guide seat, a plastic protection ring sleeve is arranged on the iron sheet and fixedly connected to the first magnet, and the connecting rod penetrates through the limiting guide seat and the supporting seat.
Preferably, be provided with the base on the valve body, seted up a recess on the base, carry the button to be located the recess the rigid coupling has the indicator lever on the pull rod, and the indicator lever can pass carry the button, the surface of indicator lever divide into green section and red section, and when the gas pressure in the passageway is in the predetermined range, green section is stretched outside carrying the button, when the gas pressure in the passageway is greater than predetermined maximum value, green section with red section homoenergetic is stretched outside carrying the button the base with the rigid coupling has the connection piece between the indicator lever.
Preferably, the base is sleeved outside the valve body, a step is arranged in the base, the lower end of the second spring is fixedly connected to the step, the upper end of the second spring is fixedly connected to a spring piece, and the spring piece is fixedly connected with the valve body, so that the base can slide up and down on the surface of the valve body.
The invention has the beneficial effects that: in the implementation process of the invention, the purpose of blocking the fuel gas can be realized when the fuel gas pressure is too large or too small, so that the fuel gas is safer in the use process. By arranging the pull rod, the first magnet, the second magnet and the third magnet, the channel can be blocked when the air pressure in the valve body is too large or too small in the implementation process of the invention, and the safety factor of the fuel gas in the use process is increased. By arranging the first spring, the second partition plate and the sealing block, when the gas flow is overlarge in the implementation process of the invention, the gas is prevented from passing through the device, and the safety performance of the gas in use is further improved. And the traditional driving and connecting rod transmission modes depending on electric energy are abandoned, so that the device is more stable and safer in the use process.
Through setting up the pilot lever, can be in this device use for the pressure state of the gas in the valve body is observed to the user more directly perceived.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of the isolation mechanism.
Element number description: 1. a valve body; 2. a base; 3. lifting the button; 4. a pull rod; 5. a rubber skin; 6. a first magnet; 7. a plastic protective ring sleeve; 8. iron sheets; 9. a first through hole; 10. a limiting guide seat; 11. a supporting seat; 12. a card holder; 13. a second magnet; 14. a third magnet; 15. a connecting rod; 16. a sealing head; 17. a positioning frame; 18. a first spring; 19. a sealing block; 20. a fixed seat; 21. an air inlet end; 22. a valve button; 23. a screw; 24. a rubber ring; 25. a ball valve; 26. a second separator; 27. an outlet; 28. an indication lever; 29. connecting sheets; 30. a spring plate; 31. a second spring.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings: referring to fig. 1 to 2, a gas pipeline self-closing valve comprises a valve body 1, a channel for gas to pass through is arranged in the valve body 1 in a penetrating manner, a metal pull rod 4 capable of moving up and down is arranged in the channel, a first magnet 6 capable of moving up and down is arranged in the channel, the first magnet 6 is positioned below the pull rod 4, the first magnet 6 is fixedly connected with a clamping seat 12 through a screw, a notch is arranged on the clamping seat 12, a second magnet 13 is fixedly connected in the notch, the pull rod 4 is connected with the first magnet 6, the second magnet 13 and the clamping seat 12 through magnetic force, a sealing part capable of sealing the channel is arranged in the channel, one end of the sealing part is fixedly connected with a third magnet 14, the third magnet 14 faces part of the second magnet 13, when the internal gas pressure of the valve body 1 is smaller than a preset minimum value, the pull rod 4, the first magnet 6, the second magnet 13 and the clamping seat 12 fall under the influence of gravity and the magnetic force of the first magnet 6, the second magnet 13 attracts the third magnet 14 to slide in a direction approaching itself, so that the seal seals the passage.
In the use process of the device, a user pulls the pull rod 4 upwards, in the process that the pull rod 4 is pulled upwards, the pull rod 4 drives the first magnet 6, the second magnet 13 and the clamping seat 12 upwards together through magnetic force, at the moment, repulsive force is generated between the second magnet 13 and the third magnet 14, and therefore the sealing element moves towards the direction far away from the first magnet 6, the channel is opened, and gas can enter the channel.
The side of the second magnet 13 facing the third magnet 14 is provided with the N pole and the S pole of the magnet at the same time, the side of the third magnet 14 facing the second magnet 13 is provided with only one magnetic pole of the magnet, when the air pressure in the valve body 1 is smaller than a preset minimum value, the pull rod 4, the first magnet 6, the second magnet 13 and the clamping seat 12 are influenced by gravity and the attraction force of the first magnet and the iron sheet 8 to move downwards, so that the attraction force is generated between the second magnet 13 and the third magnet 14, the sealing element slides towards the direction of the second magnet 13 to make the channel in a closed state, when the air pressure in the valve body 1 is larger than the preset maximum value, when the air pressure in the valve body is larger than the preset maximum value, the rubber diaphragm drives the pull rod 4 to move upwards, the limiting guide seat 10 prevents the clamping seat 12 from continuing to move upwards, so that the pull rod 4 is disconnected from the first magnet, the first magnet 6, the second magnet 13 and the clamping seat 12 are influenced by gravity and the attraction force of, so that an attractive force is generated between the second magnet 13 and the third magnet 14 and the sealing member slides in the direction of the second magnet 13 to close the passage. The user pulls the pull rod 4 upwards to make the cassette 12 be at the highest position, be the repulsion between second magnet 13 and the third magnet 14, the sealing member can not be with the passageway shutoff this moment, and the passageway is in open mode promptly, and the gas enters into the passageway cavity, makes this device be in the open mode under the effect of rated atmospheric pressure.
The sealing member includes connecting rod 15 and sealed head 16, is provided with the first baffle that can cut off it in the passageway, and the first through-hole 9 has been seted up to run through on first baffle, and connecting rod 15 can slide in first through-hole 9, and sealed head 16 can seal first through-hole 9, and the rigid coupling between sealed head 16 and the connecting rod 15. The connecting rod 15 connects the third magnet 14 with the sealing head 16, and the use of the sealing head 16 facilitates the plugging of the channel.
A rubber membrane 5 is arranged in the channel, the rubber membrane 5 divides the channel into an upper chamber and a lower chamber which are independent, the pull rod 4 penetrates through the rubber membrane 5, the pull rod 4 is fixedly connected with the rubber membrane 5, and when the air pressure in the channel is larger than a preset maximum value, the rubber membrane 5 expands towards the upper chamber to enable the pull rod 4 to move upwards. When the gas flows in the valve body 1, the lower chamber is connected with the channel, and when the pressure of the gas is reduced, the rubber diaphragm 5 moves downwards under the influence of the gravity of the pull rod 4 and the attraction force of the first magnet and the iron sheet 8, and then the attraction force is generated between the second magnet 13 and the third magnet 14; when the pressure of the gas is in a predetermined range, the rubber diaphragm 5 expands upwards to drive the pull rod 4 to move upwards, and at the moment, a repulsive force is generated between the second magnet 13 and the third magnet 14, so that the channel is opened.
Be provided with in the one end that the passageway admits air and be equipped with the isolated mechanism that can seal the passageway, isolated mechanism's use, can be when the gas flow in valve body 1 is too big, and make isolated mechanism close the passageway, isolated mechanism includes fixing base 20 and sealed piece 19, fixing base 20 is sealed the passageway, and set up the second through-hole that supplies the gas circulation of running through on fixing base 20, sealed piece 19 can slide in the passageway, when the gas flow in the passageway is greater than predetermined maximum value, and sealed piece 19 can prevent that the gas from continuing to pass the second passageway.
A positioning frame 17 for sealing the channel is fixedly connected in the channel, the fuel gas firstly passes through the fixed seat 20 and then passes through the positioning frame 17, a pipeline for gas to flow is arranged on the positioning frame 17, a first spring 18 is sleeved outside the pipeline, the free end of the first spring 18 is propped against the sealing block 19, the cross section of the sealing block 19 is in a shape of a plus, the fixed seat 20 is also provided with a third through hole which can play a certain positioning role for the sealing block 19, so that the sealing block 19 is moved in a predetermined direction, one branch of the sealing block 19 located in a horizontal position is inserted into the third through-hole, the other branch of the sealing block 19 located in a horizontal position is inserted into the pipe, when the pressure of the gas in the channel is greater than a predetermined maximum, the gas blows through the second through hole onto the branch of the sealing block 19 in the vertical position, pushing the sealing block 19 into the pipe to seal it. The greater the thrust received on the sealing block 19 at a greater gas flow rate through the valve body 1, and when the gas flow rate exceeds a predetermined maximum value, the sealing block 19 can be inserted into the above-mentioned duct, thus sealing it.
The valve button 22 is rotatably arranged at the position, close to the air outlet end, of the valve body 1, the ball valve 25 capable of rotating is arranged in the channel, the third through hole is formed in the ball valve 25 in a penetrating mode, the ball valve 25 is connected with the valve button 22 through the screw 23, and the screw 23 is provided with the rubber ring 24. This part facilitates the manual control of the opening and closing of the valve body 1 by the user.
A limiting guide seat 10 and a supporting seat 11 are arranged in the channel, the limiting guide seat 10 is fixedly connected with the supporting seat 11, an iron sheet 8 is fixedly connected onto the limiting guide seat 10, a plastic protection ring sleeve 7 is arranged on the iron sheet 8, the plastic protection ring sleeve 7 is fixedly connected onto the first magnet 6, and a connecting rod 15 penetrates through the limiting guide seat 10 and the supporting seat 11.
Be provided with base 2 on valve body 1, a recess has been seted up on base 2, carry button 3 to be located the recess, the rigid coupling has indicator lever 28 on pull rod 4, when the gas pressure grow in valve body 1, rubber involucra 5 drives this pull rod 4 rebound, pull rod 4 and indicator lever 28 rigid coupling, thereby make indicator lever 28 also rebound thereupon, and indicator lever 28 can pass and carry button 3, the surface of indicator lever 28 divide into green section and red section, and when the gas pressure in the passageway is in predetermined range, the green section stretches out outside carrying button 3, when the gas pressure in the passageway is greater than predetermined maximum value, green section and red section homoenergetic stretch out outside carrying button 3, the rigid coupling has 29 between base 2 and indicator lever 28. In the normal use process of the device, the green section on the indicating rod 28 is positioned outside the lifting button 3, so that the user can more intuitively see that the device is in a normal use state. When the gas pressure in the valve body 1 is too high, the green section and the red section in the indicating rod 28 are both positioned outside the lifting knob 3.
The base 2 is sleeved outside the valve body 1, a step is arranged in the base 2, the lower end of the second spring 31 is fixedly connected to the step, the upper end of the second spring 31 is fixedly connected with the spring piece 30, and the spring piece 30 is fixedly connected with the valve body 1, so that the base 2 can slide up and down on the surface of the valve body 1.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a gas pipeline self-closing valve, includes valve body (1), what run through in valve body (1) is provided with the passageway that supplies the gas to pass through be provided with metal pull rod (4) that can reciprocate in the passageway, its characterized in that: a first magnet (6) capable of moving up and down is arranged in the channel, the first magnet (6) is positioned below the pull rod (4), the first magnet (6) is fixedly connected with the clamping seat (12) through a screw, a gap is arranged on the clamping seat (12), a second magnet (13) is fixedly connected in the gap, the pull rod (4) is connected with the first magnet (6), the second magnet (13) and the clamping seat (12) through magnetic force, a sealing piece capable of sealing the channel is arranged in the channel, one end of the sealing piece is fixedly connected with a third magnet (14), the third magnet (14) faces part of the second magnet (13), and when the pressure of the gas in the valve body (1) is smaller than a preset minimum value, the pull rod (4), the first magnet (6), the second magnet (13) and the clamping seat (12) gravity and the magnetic force of the first magnet (6) and the iron sheet (8) fall down under the influence of the gravity, the second magnet (13) attracts the third magnet (14) to slide in a direction approaching itself, so that the seal seals the passage.
2. A gas pipeline self-closing valve according to claim 1, characterized in that: the side face, facing the third magnet (14), of the second magnet (13) is provided with the N pole and the S pole of the magnets at the same time, when a channel in the valve body (1) is closed, attractive force is generated between the second magnet (13) and the third magnet (14) to enable the channel to be in a closed state, in the process that the pull rod (4) is pulled upwards, the pull rod (4) drives the first magnet (6), the second magnet (13) and the clamping seat (12) upwards through magnetic force, at the moment, repulsive force is generated between the second magnet (13) and the third magnet (14), and therefore the sealing element moves towards the direction far away from the first magnet (6) to enable the channel to be opened.
3. A gas pipeline self-closing valve according to claim 2, wherein: the sealing element comprises a connecting rod (15) and a sealing head (16), a first partition plate capable of separating the sealing element from the channel is arranged in the channel, a first through hole (9) penetrates through the first partition plate, the connecting rod (15) can slide in the first through hole (9), the sealing head (16) can seal the first through hole (9), and the sealing head (16) and the connecting rod (15) are fixedly connected.
4. A gas pipeline self-closing valve according to claim 1, characterized in that: the rubber diaphragm (5) is arranged in the channel, the rubber diaphragm (5) divides the channel into an upper cavity and a lower cavity which are independent, the pull rod (4) penetrates through the rubber diaphragm (5), the pull rod (4) and the rubber diaphragm (5) are fixedly connected, and when the air pressure in the channel is larger than a preset minimum value, the rubber diaphragm (5) expands towards the upper cavity to enable the pull rod (4) to move upwards.
5. A gas pipeline self-closing valve according to claim 1, characterized in that: be provided with in the one end that the passageway admits air and can be with the sealed isolated mechanism of passageway, isolated mechanism includes fixing base (20) and sealed piece (19), and fixing base (20) will the passageway is sealed, and the second through-hole that offers the confession gas circulation that runs through on fixing base (20), sealed piece (19) can slide in the passageway when the gas flow in the passageway is greater than predetermined maximum value, and sealed piece (19) can prevent that the gas from continuing to pass the second passageway.
6. The gas pipeline self-closing valve according to claim 5, wherein: a positioning frame (17) for sealing the channel is fixedly connected in the channel, the gas firstly passes through the fixed seat (20) and then passes through the positioning frame (17), a pipeline for gas to flow is arranged on the positioning frame (17), a first spring (18) is sleeved outside the pipeline, the free end of the first spring (18) is propped against the sealing block (19), the section of the sealing block (19) is in a shape of a plus sign, a third through hole is also arranged on the fixed seat (20), one branch of the sealing block (19) positioned on the horizontal position is inserted into the third through hole, the other branch of the sealing block (19) positioned on the horizontal position is inserted into the pipeline, when the gas flow in the channel is greater than a predetermined maximum value, the gas blows through the second through hole onto the branch of the vertical position of the sealing block (19), and the sealing block (19) is pushed into the pipeline to seal the pipeline.
7. A gas pipeline self-closing valve according to claim 1, characterized in that: the valve body (1) is close to the position of the air outlet end and is rotatably provided with a valve button (22), a ball valve (25) capable of rotating is arranged in the channel, a third through hole is formed in the ball valve (25) in a penetrating mode, the ball valve (25) is connected with the valve button (22) through a screw rod (23), and a rubber ring (24) is arranged on the screw rod (23).
8. A gas pipeline self-closing valve according to claim 1, characterized in that: the device is characterized in that a limiting guide seat (10) and a supporting seat (11) are arranged in the channel, the limiting guide seat (10) and the supporting seat (11) are fixedly connected, an iron sheet (8) is fixedly connected onto the limiting guide seat (10), a plastic protection sleeve (7) is arranged on the iron sheet (8), the plastic protection sleeve (7) is fixedly connected onto the first magnet (6), and the connecting rod (15) penetrates through the limiting guide seat (10) and the supporting seat (11).
9. A gas pipeline self-closing valve according to claim 1, characterized in that: be provided with base (2) on valve body (1), seted up a recess on base (2), carry button (3) to be located the recess the rigid coupling has indicator lever (28) on pull rod (4), and indicator lever (28) can pass carry button (3), the surface branch of indicator lever (28) is green section and red section, and when the gas pressure in the passageway is in the predetermined range, green section stretches outside carrying button (3), when the gas pressure in the passageway is greater than predetermined maximum value, green section with red section homoenergetic stretches outside carrying button (3) base (2) with the rigid coupling has connection piece (29) between indicator lever (28).
10. A gas pipeline self-closing valve according to claim 1, characterized in that: the base (2) is sleeved outside the valve body (1), a step is arranged in the base (2), the lower end of the second spring (31) is fixedly connected to the step, the upper end of the second spring (31) is fixedly connected with the spring piece (30), and the spring piece (30) and the valve body (1) are fixedly connected with each other, so that the base (2) can slide up and down on the surface of the valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032564.9A CN111853304A (en) | 2020-01-13 | 2020-01-13 | Gas pipeline self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010032564.9A CN111853304A (en) | 2020-01-13 | 2020-01-13 | Gas pipeline self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111853304A true CN111853304A (en) | 2020-10-30 |
Family
ID=72970830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010032564.9A Withdrawn CN111853304A (en) | 2020-01-13 | 2020-01-13 | Gas pipeline self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111853304A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228600A (en) * | 2020-11-10 | 2021-01-15 | 瑞立集团瑞安汽车零部件有限公司 | Fluid low pressure release device |
| CN115681524A (en) * | 2022-11-11 | 2023-02-03 | 盐城市大丰燃气设备有限公司 | High-safety quick combined type gas valve protection device |
-
2020
- 2020-01-13 CN CN202010032564.9A patent/CN111853304A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228600A (en) * | 2020-11-10 | 2021-01-15 | 瑞立集团瑞安汽车零部件有限公司 | Fluid low pressure release device |
| CN112228600B (en) * | 2020-11-10 | 2024-06-21 | 瑞立集团瑞安汽车零部件有限公司 | Fluid low pressure release device |
| CN115681524A (en) * | 2022-11-11 | 2023-02-03 | 盐城市大丰燃气设备有限公司 | High-safety quick combined type gas valve protection device |
| CN115681524B (en) * | 2022-11-11 | 2023-12-26 | 盐城市大丰燃气设备有限公司 | High-safety quick combined gas valve protection device |
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Application publication date: 20201030 |