CN117267429B - Timing self-closing valve - Google Patents
Timing self-closing valve Download PDFInfo
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- CN117267429B CN117267429B CN202311571652.6A CN202311571652A CN117267429B CN 117267429 B CN117267429 B CN 117267429B CN 202311571652 A CN202311571652 A CN 202311571652A CN 117267429 B CN117267429 B CN 117267429B
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- 238000009434 installation Methods 0.000 claims description 15
- 238000002955 isolation Methods 0.000 claims description 13
- 239000007789 gas Substances 0.000 description 175
- 230000001105 regulatory effect Effects 0.000 description 9
- 239000002737 fuel gas Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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
- F16K21/00—Fluid-delivery valves, e.g. self-closing valves
- F16K21/04—Self-closing valves, i.e. closing automatically after operation
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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
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention discloses a timing self-closing valve, and particularly relates to the technical field of gas valves. According to the invention, the self-closing mechanism is arranged, when the gas pipe is stopped or the gas outlet joint is connected to the outside to be damaged, so that the gas in the gas collecting chamber is reduced, the pressure in the inner cavity of the gas collecting chamber is smaller than the pressure in the third chamber, and the first movable rod is driven to reset by the first spring, so that the self-closing valve is automatically closed, the safety of the self-closing valve is convenient to improve, the gas can be automatically closed when the gas is stopped or the pressure is ultralow in a timing period, the gas self-closing valve is suitable for various conditions, the gas is prevented from leaking in a large amount, the possibility of fire hazard occurrence caused by forgetting to turn off when the gas cooker is used is avoided, and the safety of the self-closing valve is higher compared with that of the traditional timing self-closing valve.
Description
Technical Field
The invention relates to the technical field of gas valves, in particular to a timing self-closing valve.
Background
The self-closing valve is a device which is installed on a low-pressure gas system pipeline, does not use electricity or other external power when the gas supply pressure of the pipeline is under-pressure or over-pressure, and can be automatically closed and needs to be manually opened.
Chinese patent application number CN202320814722.5 discloses a timing self-closing valve comprising: the upper side of the valve body is connected with the valve cover; further comprises: the valve rod pushing device penetrates through the driving hole and is connected with a valve rod of the self-closing valve. The timing self-closing valve solves the defects that in the prior art, the timing device cannot realize one-time completion of production, manufacture and assembly, so that the production cost is high, and the product quality and the service life of the product are influenced. The timing self-closing valve is reasonable in structural design, a driving hole is formed in the timing device, connection with a valve rod pushing device is achieved through the driving hole, and one-time machining and assembly of all gear meshing structures of the timing device can be achieved. However, in the timing time period, if the gas is stopped or the pressure is ultralow, the gas cannot be automatically closed, and only the timing closing function is provided, so that the occurrence of the condition that gas leakage occurs suddenly cannot be avoided, the safety performance of the self-closing valve is affected, and when the gas supply is stopped suddenly or the pressure of the gas is ultralow, the self-closing valve is suddenly closed, and the normal use of gas equipment is also affected.
Disclosure of Invention
The embodiment of the invention provides a timing self-closing valve, which solves the problems that in the prior art, if the condition of gas stopping or ultralow pressure occurs, the timing self-closing valve cannot automatically close gas and only has the function of timing closing, so that the condition of gas leakage cannot be avoided, the safety performance of the self-closing valve is influenced, and when the condition of stopping gas supply or ultralow pressure of gas suddenly occurs, the self-closing valve is suddenly closed, and the normal use of gas equipment is also influenced.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a timing self-closing valve, includes the valve body, first recess has been seted up to the inside of valve body, the inside of valve body is provided with emergency mechanism, the both sides of valve body are fixed with the air inlet joint respectively and give vent to anger and connect, it is provided with timing mechanism to give vent to anger to connect, the outer wall of valve body is fixed with the air inlet, the air inlet communicates with the air inlet joint, the inner wall of first recess is fixed with first annular installation piece, the outer wall of first annular installation piece is fixed with self-closing mechanism, and self-closing mechanism includes annular isolation piece, annular isolation piece is fixed at the outer wall of first annular installation piece, first cavity and second cavity have been seted up to the inside of annular isolation piece, a plurality of first inlet port have been seted up to the inner wall of first cavity, the bottom of annular isolation piece is fixed with the air chamber.
In a preferred embodiment, the inner wall of the gas collecting chamber is fixed with a fixed block, a second groove is formed in the fixed block, a first fixed rod is fixed on the inner wall of the second groove, a first spring is arranged on the outer wall of the first fixed rod, a first movable rod is slidably mounted on the outer wall of the first fixed rod, the first spring is fixedly connected with the first fixed rod and the first movable rod respectively, an annular mounting groove is fixed on the inner wall of the first annular mounting block, a plurality of second air inlets are formed in one end of the annular mounting groove, an annular movable plate is slidably mounted on the inner wall of the annular mounting groove, and a first annular limiting plate is fixed on the inner wall of the first annular mounting block.
In a preferred embodiment, the outer wall of the first movable rod is fixed with a first annular fixed plate, the first annular fixed plate is fixedly connected with the annular movable plate, a plurality of third air inlets are formed in one end of the first annular mounting block, a second annular fixed plate is fixed on the inner wall of the first groove, a third cavity is reserved between the second annular fixed plate and the first annular mounting block, a rubber block is slidably mounted on the outer wall of the second annular fixed plate, the rubber block is fixedly mounted with the first movable rod, a third groove is formed in the inner wall of the rubber block, a second annular limiting plate is slidably mounted on the inner wall of the third groove, the second annular limiting plate is fixedly connected with the second annular fixed plate, a first air outlet is fixedly connected with the inner wall of the second cavity, and is fixedly connected with the valve body and communicated with the air outlet joint.
In a preferred embodiment, the emergency mechanism comprises a gas storage bin, the gas storage bin is fixed below the first groove, an air bag is arranged in the gas storage bin, a second air outlet is fixed on the inner wall of the gas storage bin, the second air outlet is communicated with the air outlet joint, the air bag is communicated with the gas collecting chamber through a constant pressure valve, and a control switch is arranged on one side, close to the air outlet joint, of the outer wall of the gas storage bin.
In a preferred embodiment, the outer wall of the first movable rod is fixed with a base, the inner wall of the valve body is fixed with a hollow tube, and the outer wall of the hollow tube is provided with a thread groove.
In a preferred embodiment, the outer wall of the hollow tube is in threaded connection with a threaded block, the inner wall of the hollow tube is fixed with a third annular limiting plate, and the outer wall of the hollow tube is slidably provided with a mounting cover.
In a preferred embodiment, the inner wall of the mounting cover is fixedly connected with a second fixing rod, the outer wall of the second fixing rod is fixedly provided with a second annular mounting block, the outer wall of the second fixing rod is provided with a second spring, and two ends of the second spring are respectively fixedly connected with the base and the second annular mounting block.
In a preferred embodiment, a sliding rail is fixed at one end of the mounting cover, a plurality of second movable rods are slidably mounted on the inner wall of the sliding rail, and a fourth groove is formed at one end of the threaded block.
In a preferred embodiment, the inner wall of the fourth groove is provided with a plurality of fifth grooves, the inner walls of the fifth grooves are all fixed with a third fixed rod, the outer wall of the third fixed rod is slidably provided with a third movable rod, and the third movable rod is fixedly connected with the second movable rod.
In a preferred embodiment, a gear is rotatably mounted at one end of the third movable rod, and a gear plate is fixed to the inner wall of the fourth groove, and the gear plate is meshed with the gear.
The invention has the technical effects and advantages that:
1. according to the invention, the self-closing mechanism is arranged, when the gas pipe is stopped or the gas outlet joint is connected to the outside to be damaged, so that the gas leakage is caused, the gas in the gas collecting chamber is reduced, the pressure in the inner cavity of the gas collecting chamber is smaller than the pressure in the third chamber, and the first movable rod is driven to reset by the first spring, so that the self-closing valve is automatically closed, the safety of the self-closing valve is conveniently improved, the gas can be automatically closed when the gas is stopped or the pressure is ultralow in a timing period, various conditions are met, the gas is prevented from being leaked in a large amount, the possibility of fire hazard occurrence caused by forgetting to stop the gas kitchen range is avoided, and the safety of the self-closing valve is higher compared with that of the traditional timing self-closing valve.
2. According to the invention, the threaded block is arranged, when the mounting cover slides upwards on the outer wall of the hollow pipe, the second spring is driven to move upwards through the second annular mounting block, at the moment, the pressure of the second spring to the base is reduced, so that the first movable rod is pulled to move upwards through the base, the annular movable plate is driven to slide upwards on the inner wall of the annular mounting groove through the first annular fixed plate, the second air inlet hole is opened, when the mounting cover slides downwards on the outer wall of the hollow pipe, the second annular mounting block extrudes the second spring, at the moment, the second spring extrudes the base to move downwards, so that the first movable rod is driven to move downwards through the base, the annular movable plate is driven to slide downwards on the inner wall of the annular mounting groove through the first annular fixed plate, the gas flow is regulated through controlling the closing quantity of the second air inlet hole, the gas flow is conveniently regulated manually, the danger caused by direct supply of high-pressure gas to a household user is avoided, the overpressure protection is realized, the effect of saving energy is realized, the gas flow is regulated according to the gas flow required by the gas equipment, the self-adaptive valve is better in service life, the self-adaptive valve is better in timing and has the performance, the self-adaptive performance is better;
3. according to the invention, the emergency mechanism is arranged, when gas is over-pressurized or gas flow is manually regulated, the pressure in the gas collecting chamber is increased, at the moment, the over-pressurized gas is larger than the pressure threshold value of the constant pressure valve, the constant pressure valve is opened, the gas enters the gas storage bin through the constant pressure valve, the air bag is expanded to store certain gas, when the gas pipe is stopped or the gas outlet joint is damaged by external connection, the gas leakage is caused, the self-closing valve is automatically closed, the second gas outlet is controlled to be opened by the control switch, the gas in the gas storage bin is extruded through the air bag, so that the gas is discharged through the second gas outlet and is used by gas equipment.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a bottom view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is an enlarged view of the structure of the portion a of fig. 3 according to the present invention.
Fig. 5 is an enlarged view of the B-section structure of fig. 3 according to the present invention.
Fig. 6 is an enlarged view of the C-section structure of fig. 3 according to the present invention.
Fig. 7 is an enlarged view of the D portion structure of fig. 3 according to the present invention.
Fig. 8 is an enlarged view of the E-section structure of fig. 3 according to the present invention.
Reference numerals: 1. a valve body; 2. a first groove; 3. an air inlet; 4. a first annular mounting block; 5. a self-closing mechanism; 501. annular isolation blocks; 6. a first chamber; 7. a second chamber; 8. a gas collecting chamber; 9. a fixed block; 10. a second groove; 11. a first fixing rod; 12. a first spring; 13. a first movable lever; 14. an annular mounting groove; 15. a second air inlet hole; 16. an annular movable plate; 17. a first annular limiting plate; 18. a first annular fixing plate; 19. a third air inlet hole; 20. a second annular fixing plate; 21. a rubber block; 22. a third groove; 23. the second annular limiting plate; 24. a first air outlet; 25. a base; 26. a hollow tube; 27. a thread groove; 28. a screw block; 29. a third annular limiting plate; 30. a mounting cover; 31. a second fixing rod; 32. a second annular mounting block; 33. a second spring; 34. a slide rail; 35. a second movable rod; 36. a fourth groove; 37. a fifth groove; 38. a third fixing rod; 39. a third movable lever; 40. a gear; 41. a gear plate; 42. a first air inlet hole; 43. a third chamber; 44. a timing mechanism; 45. an air inlet joint; 46. an air outlet joint; 47. an emergency mechanism; 48. a gas storage bin; 49. an air bag; 50. a second air outlet; 51. a constant pressure valve; 52. and controlling the switch.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
In the timing time period, if the gas is stopped or the pressure is ultralow, the traditional timing self-closing valve cannot automatically close the gas and only has the function of timing closing, so that the condition that the gas leaks suddenly can not be avoided, and the safety performance of the self-closing valve is affected.
Referring to fig. 1-7 of the specification, a timing self-closing valve comprises a valve body 1, a first groove 2 is formed in the valve body 1, an emergency mechanism 47 is arranged in the valve body 1, an air inlet connector 45 and an air outlet connector 46 are respectively fixed on two sides of the valve body 1, a timing mechanism 44 is arranged on the air outlet connector 46, an air inlet 3 is fixed on the outer wall of the valve body 1, the air inlet 3 is communicated with the air inlet connector 45, a first annular mounting block 4 is fixed on the inner wall of the first groove 2, a self-closing mechanism 5 is fixed on the outer wall of the first annular mounting block 4, the self-closing mechanism 5 comprises an annular isolation block 501, the annular isolation block 501 is fixed on the outer wall of the first annular mounting block 4, a first cavity 6 and a second cavity 7 are formed in the annular isolation block 501, the first cavity 6 is fixedly connected with the air inlet 3, a plurality of first air inlets 42 are formed in the inner wall of the first cavity 6, an air gathering chamber 8 is fixedly arranged at the bottom end of the annular isolation block 501, a fixed block 9 is fixedly arranged on the inner wall of the air gathering chamber 8, a second groove 10 is formed in the inner wall of the fixed block 9, a first fixed rod 11 is fixedly arranged on the inner wall of the second groove 10, a first fixed rod 11 is fixedly arranged on the inner wall of the first groove 11, a first annular rod 11 is fixedly arranged on the first annular rod 11 and a first annular rod 11 is fixedly connected with a first annular rod 13-shaped spring rod 13, a first annular rod 13 is fixedly arranged on the first annular rod 13 and a first annular rod 13, a first annular rod 13 is fixedly mounted on the first annular rod 13, a first annular rod 13 and a first movable rod 13 is fixedly arranged 13, one end 13 and a first movable rod 13 and a first 13 and 13.
The outer wall of the first movable rod 13 is fixedly provided with a first annular fixed plate 18, the first annular fixed plate 18 is fixedly connected with the annular movable plate 16, one end of the first annular mounting block 4 is provided with a plurality of third air inlets 19, the inner wall of the first groove 2 is fixedly provided with a second annular fixed plate 20, a third cavity 43 is reserved between the second annular fixed plate 20 and the first annular mounting block 4, the outer wall of the second annular fixed plate 20 is slidably provided with a rubber block 21, the rubber block 21 is fixedly provided with the first movable rod 13, the inner wall of the rubber block 21 is provided with a third groove 22, the inner wall of the third groove 22 is slidably provided with a second annular limiting plate 23, the second annular limiting plate 23 is fixedly connected with the second annular fixed plate 20, the inner wall of the second cavity 7 is fixedly connected with a first air outlet 24, the first air outlet 24 is fixedly connected with the valve body 1, and the first air outlet 24 is communicated with an air outlet joint 46.
As shown in fig. 1, 2, 3, 4, 5, and 6, the first chamber 6 is used as a gas inflow channel, the second chamber 7 is used as a gas outflow channel, the gas collecting chamber 8 is used for gas inflow and storage, the first spring 12 is convenient for restoring the first movable rod 13 to an original state, the annular mounting groove 14 and the second air inlet hole 15 are used for the gas outflow channel, the annular movable plate 16 is used for adjusting the flow rate of the gas passing through the second air inlet hole 15, the third chamber 43 is used as the gas outflow channel, and the rubber block 21 is used for sealing and avoiding gas leakage.
When the gas is normally used, the gas enters the first chamber 6 through the gas inlet 3 and enters the gas collecting chamber 8 through the first gas inlet hole 42, so that the gas is collected in the gas collecting chamber 8, the first annular fixed plate 18 is extruded, the rubber block 21 is driven to move upwards through the first movable rod 13, the first annular fixed plate 18 drives the annular movable plate 16 to move upwards at the moment, the second gas inlet hole 15 is opened, the gas enters the third chamber 43 through the second gas inlet hole 15, enters the inner cavity of the second chamber 7 through the third gas inlet hole 19, is discharged through the first gas outlet 24, and then when the gas pipe is stopped or the gas is leaked due to the damage of the external connection gas outlet joint 46, the gas in the gas collecting chamber 8 is reduced, the pressure in the inner cavity of the gas collecting chamber 8 is smaller than that in the third chamber 43 at the moment, the first movable rod 13 is driven to reset through the first spring 12, so that the self-closing valve is automatically closed, the safety of the self-closing valve is convenient to be improved, the gas stopping or the gas can be automatically closed when the pressure is ultralow in a timing period, a plurality of conditions are prevented, a large amount of gas leakage is prevented, compared with the conventional gas stove, the condition that the gas is forgotten to be prevented from happening, and the safety of the self-closing valve is high when the conventional fire is caused when the gas is used.
Example two
Many conventional timing self-closing valves do not have the function of manually adjusting the flow rate of the fuel gas, so that not only the fuel gas is wasted, but also the service life of the fuel gas equipment is affected, and therefore, the device described in the above embodiment is improved.
Referring to fig. 1-7 of the specification, a base 25 is fixed on the outer wall of a first movable rod 13, a hollow tube 26 is fixed on the inner wall of a valve body 1, a thread groove 27 is formed on the outer wall of the hollow tube 26, a thread block 28 is connected to the outer wall of the hollow tube 26 in a threaded manner, a third annular limiting plate 29 is fixed on the inner wall of the hollow tube 26, a mounting cover 30 is slidably mounted on the outer wall of the hollow tube 26, a second fixing rod 31 is fixedly connected to the inner wall of the mounting cover 30, a second annular mounting block 32 is fixed on the outer wall of the second fixing rod 31, a second spring 33 is arranged on the outer wall of the second fixing rod 31, and two ends of the second spring 33 are fixedly connected with the base 25 and the second annular mounting block 32 respectively.
As shown in fig. 1, 2, 3, 6 and 7, the screw groove 27 is convenient for moving the screw block 28 up and down on the outer wall of the hollow tube 26, the third annular limiting plate 29 is used for limiting the mounting cover 30, avoiding the mounting cover 30 from sliding out, and the second spring 33 is convenient for restoring the mounting cover 30 to the original state.
The one end of installation lid 30 is fixed with slide rail 34, the inner wall slidable mounting of slide rail 34 has a plurality of second movable rods 35, fourth recess 36 has been seted up to the one end of screw thread piece 28, a plurality of fifth recesses 37 have been seted up to the inner wall of fourth recess 36, the inner wall of a plurality of fifth recesses 37 all is fixed with third dead lever 38, the outer wall slidable mounting of third dead lever 38 has third movable rod 39, third movable rod 39 and second movable rod 35 fixed connection, the one end rotation of third movable rod 39 is installed the gear 40, the inner wall of fourth recess 36 is fixed with gear plate 41, gear plate 41 and gear 40 meshing.
As shown in fig. 1, 2, 3 and 7, the sliding rail 34 provides a moving path for the second moving rod 35, the fifth groove 37 provides a moving path for the third moving rod 39, and the screw block 28 is rotated and drives the mounting cover 30 to slide on the outer wall of the hollow tube 26 through the second moving rod 35.
When the mounting cover 30 slides upwards on the outer wall of the hollow tube 26, the second spring 33 is driven to move upwards through the second annular mounting block 32, at this time, the pressure of the second spring 33 to the base 25 is reduced, thereby the first movable rod 13 is pulled upwards through the base 25, and then the annular movable plate 16 is driven to slide upwards on the inner wall of the annular mounting groove 14 through the first annular fixed plate 18, so that the second air inlet 15 is opened, when the mounting cover 30 slides downwards on the outer wall of the hollow tube 26, the second annular mounting block 32 presses the second spring 33, at this time, the second spring 33 can squeeze the base 25 to move downwards, thereby the first movable rod 13 is driven to move downwards through the base 25, and then the annular movable plate 16 is driven to slide downwards on the inner wall of the annular mounting groove 14 through the first annular fixed plate 18, so that the second air inlet 15 is closed, the gas flow is regulated through controlling the closing quantity of the second air inlet 15, and the gas flow is convenient to be manually regulated.
In summary, the invention avoids danger caused by direct supply of high-pressure gas to household users by adjusting the flow of the gas, realizes overpressure protection, not only can make the use of the gas more efficient and achieve the effects of energy saving and consumption reduction, but also can adjust the gas flow according to the requirement of the gas equipment, thereby prolonging the service life of the gas equipment, leading the timing self-closing valve to be suitable for various conditions, having stronger adaptability and better safety, and improving the service performance of the timing self-closing valve.
Example III
In the actual use of the gas appliance, if the stop of the gas supply or the ultra-low gas pressure occurs suddenly, the self-closing valve is suddenly closed, which affects the normal use of the gas appliance, so the present embodiment improves the device described in the above embodiment.
Referring to fig. 1-5 of the drawings, the emergency mechanism 47 comprises a gas storage bin 48, the gas storage bin 48 is fixed below the first groove 2, an air bag 49 is arranged in the gas storage bin 48, a second air outlet 50 is fixed on the inner wall of the gas storage bin 48, the second air outlet 50 is communicated with the air outlet joint 46, the air bag 49 is communicated with the gas collecting chamber 8 through a constant pressure valve 51, a control switch 52 is arranged on one side, close to the air outlet joint 46, of the outer wall of the gas storage bin 48, and the control switch 52 is used for controlling the second air outlet 50 to be opened and closed.
When the gas is over-pressurized or the gas flow is manually regulated, the pressure in the gas collecting chamber 8 is increased, at the moment, the pressure of the over-pressurized gas is larger than the pressure threshold value of the constant pressure valve 51, the over-pressurized gas enables the constant pressure valve 51 to be opened, the gas enters the gas storage bin 48 through the constant pressure valve, the air bag 49 is expanded, a certain amount of gas is stored, when the gas pipe is stopped or the gas outlet joint 46 is damaged due to the external connection, and the gas leakage is caused, the self-closing valve is automatically closed, the second gas outlet 50 is controlled to be opened through the control switch 52, the gas in the gas storage bin 48 is extruded through the air bag 49, and the gas is discharged through the second gas outlet 50 and is used for gas equipment for emergency.
Compared with the traditional timing self-closing valve, the timing self-closing valve can store a certain amount of fuel gas, and when the gas supply is stopped or the pressure of the fuel gas is ultralow, the self-closing valve can be automatically closed, so that the fuel gas equipment can be continuously used for a period of time when the self-closing valve is automatically closed for emergency.
Specifically, the timing self-closing valve is connected with the gas pipeline through the gas inlet connector 45 and the gas outlet connector 46, when the self-closing valve starts to work, the gas enters the first chamber 6 through the gas inlet 3 and enters the gas collecting chamber 8 through the first gas inlet hole 42 at the time of opening the timing mechanism 44, so that the gas is collected in the gas collecting chamber 8, the first annular fixed plate 18 is extruded to drive the rubber block 21 to move upwards through the first movable rod 13, at the moment, the first annular fixed plate 18 drives the annular movable plate 16 to move upwards, so that the second gas inlet hole 15 is opened, the gas enters the third chamber 43 through the second gas inlet hole 15, enters the inner cavity of the second chamber 7 through the third gas inlet hole 19, is discharged through the first gas outlet 24, and then when the gas pipe is stopped or the gas outlet connector 46 is connected to the outside to be damaged, the gas in the gas collecting chamber 8 is reduced, the pressure in the inner cavity of the gas collecting chamber 8 is smaller than the pressure of the third chamber 43, and the first movable rod 13 is driven to reset through the first spring 12, so that the self-closing valve is closed automatically, and the safety of the self-closing valve is improved is facilitated, and the gas leakage is avoided when the gas pipe is stopped or the gas is damaged due to the first gas outlet connection;
meanwhile, when the self-closing valve starts to work, the threaded block 28 is rotated, the second movable rod 35 drives the installation cover 30 to slide on the outer wall of the hollow tube 26, when the installation cover 30 slides upwards on the outer wall of the hollow tube 26, the second spring 33 is driven to move upwards through the second annular installation block 32, at this time, the pressure of the second spring 33 to the base 25 is reduced, thereby the first movable rod 13 is pulled to move upwards through the base 25, then the annular movable plate 16 is driven to slide upwards on the inner wall of the annular installation groove 14 through the first annular fixed plate 18, the second air inlet hole 15 is opened, when the installation cover 30 slides downwards on the outer wall of the hollow tube 26, the second annular installation block 32 presses the second spring 33, at this time, the second spring 33 can press the base 25 to move downwards, thereby the first movable rod 13 is driven to slide downwards through the base 25, and then the annular movable plate 16 is driven to slide downwards on the inner wall of the annular installation groove 14 through the first annular fixed plate 18, so that the second air inlet hole 15 is closed, the flow of the gas is adjusted, and the flow of the manual adjustment of the gas is facilitated.
Meanwhile, when the gas pipe stops gas or the pressure is ultra-low, the pressure in the inner cavity of the gas collecting chamber 8 is further smaller than the pressure in the third chamber 43, the first movable rod 13 is driven to reset through the first spring 12, the mounting cover 30 is pulled to slide on the outer wall of the hollow pipe 26 through the second spring 33, the gear 40 is meshed with the gear plate 41, the third movable rod 39 is pushed to slide downwards on the outer wall of the third fixed rod 38 through the second movable rod 35, and the phenomenon that the self-closing valve cannot be closed automatically due to gas pipe stop gas or ultra-low pressure when the gas flow is manually regulated is avoided.
When the gas is over-pressurized or the gas flow is manually regulated, the pressure in the gas collecting chamber 8 is increased, at the moment, the pressure of the over-pressurized gas is larger than the pressure threshold value of the constant pressure valve 51, the over-pressurized gas enables the constant pressure valve 51 to be opened, the gas enters the gas storage bin 48 through the constant pressure valve, the air bag 49 is expanded, a certain amount of gas is stored, when the gas pipe is stopped or the gas outlet joint 46 is damaged due to the external connection, and the gas leakage is caused, the self-closing valve is automatically closed, the second gas outlet 50 is controlled to be opened through the control switch 52, the gas in the gas storage bin 48 is extruded through the air bag 49, and the gas is discharged through the second gas outlet 50 and is used for gas equipment for emergency.
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 (7)
1. The utility model provides a timing self-closing valve, includes valve body, its characterized in that: the novel valve is characterized in that a first groove is formed in the valve body, an emergency mechanism is arranged in the valve body, an air inlet joint and an air outlet joint are respectively fixed on two sides of the valve body, a timing mechanism is arranged on the air outlet joint, an air inlet is fixed on the outer wall of the valve body and communicated with the air inlet joint, a first annular mounting block is fixed on the inner wall of the first groove, a self-closing mechanism is fixed on the outer wall of the first annular mounting block and comprises an annular isolation block, the annular isolation block is fixed on the outer wall of the first annular mounting block, a first cavity and a second cavity are formed in the annular isolation block, the first cavity is fixedly connected with the air inlet, a plurality of first air inlets are formed in the inner wall of the first cavity, and a gas gathering chamber is fixed at the bottom end of the annular isolation block;
the inner wall of the gas gathering chamber is fixedly provided with a fixed block, the inside of the fixed block is provided with a second groove, the inner wall of the second groove is fixedly provided with a first fixed rod, the outer wall of the first fixed rod is provided with a first spring, the outer wall of the first fixed rod is slidably provided with a first movable rod, the first spring is fixedly connected with the first fixed rod and the first movable rod respectively, the inner wall of the first annular mounting block is fixedly provided with an annular mounting groove, one end of the annular mounting groove is provided with a plurality of second air inlets, the inner wall of the annular mounting groove is slidably provided with an annular movable plate, and the inner wall of the first annular mounting block is fixedly provided with a first annular limiting plate;
the outer wall of the first movable rod is fixedly provided with a first annular fixed plate, the first annular fixed plate is fixedly connected with the annular movable plate, one end of the first annular mounting block is provided with a plurality of third air inlets, the inner wall of the first groove is fixedly provided with a second annular fixed plate, a third cavity is reserved between the second annular fixed plate and the first annular mounting block, the outer wall of the second annular fixed plate is slidably provided with a rubber block, the rubber block is fixedly arranged with the first movable rod, the inner wall of the rubber block is provided with a third groove, the inner wall of the third groove is slidably provided with a second annular limiting plate, the second annular limiting plate is fixedly connected with the second annular fixed plate, the inner wall of the second cavity is fixedly connected with a first air outlet, the first air outlet is fixedly connected with a valve body, and the first air outlet is communicated with an air outlet joint;
the emergency mechanism comprises a gas storage bin, the gas storage bin is fixed below the first groove, an air bag is arranged in the gas storage bin, a second gas outlet is fixed on the inner wall of the gas storage bin, the second gas outlet is communicated with a gas outlet joint, the air bag is communicated with a gas collecting chamber through a constant pressure valve, and a control switch is arranged on one side, close to the gas outlet joint, of the outer wall of the gas storage bin.
2. A timed self-closing valve according to claim 1, characterized in that: the outer wall of the first movable rod is fixedly provided with a base, the inner wall of the valve body is fixedly provided with a hollow pipe, and the outer wall of the hollow pipe is provided with a thread groove.
3. A timed self-closing valve according to claim 2, characterized in that: the outer wall threaded connection of hollow tube has the screw thread piece, the inner wall of hollow tube is fixed with the annular limiting plate of third, the outer wall slidable mounting of hollow tube has the installation lid.
4. A timed self-closing valve according to claim 3, characterized in that: the inner wall fixedly connected with second dead lever of installation lid, the outer wall of second dead lever is fixed with second annular installation piece, the outer wall of second dead lever is provided with the second spring, the both ends of second spring are respectively with base and second annular installation piece fixed connection.
5. A timed self-closing valve according to claim 4, characterized in that: one end of the mounting cover is fixed with a sliding rail, a plurality of second movable rods are slidably mounted on the inner wall of the sliding rail, and a fourth groove is formed in one end of the threaded block.
6. A timed self-closing valve according to claim 5, characterized in that: the inner wall of the fourth groove is provided with a plurality of fifth grooves, the inner walls of the fifth grooves are all fixed with third fixing rods, the outer walls of the third fixing rods are slidably provided with third movable rods, and the third movable rods are fixedly connected with the second movable rods.
7. A timed self-closing valve according to claim 6, characterized in that: one end of the third movable rod is rotatably provided with a gear, the inner wall of the fourth groove is fixedly provided with a gear plate, and the gear plate is meshed with the gear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311571652.6A CN117267429B (en) | 2023-11-23 | 2023-11-23 | Timing self-closing valve |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311571652.6A CN117267429B (en) | 2023-11-23 | 2023-11-23 | Timing self-closing valve |
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| CN117267429A CN117267429A (en) | 2023-12-22 |
| CN117267429B true CN117267429B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311571652.6A Active CN117267429B (en) | 2023-11-23 | 2023-11-23 | Timing self-closing valve |
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| CN117781001B (en) * | 2024-02-26 | 2024-04-30 | 西安友谊燃气设备有限公司 | Leakage-proof gas timing self-closing valve |
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| JP3046894U (en) * | 1996-05-08 | 1998-03-24 | 榮 兆 荘 | Explosion-proof gas automatic shut-off device with timer |
| CN207297915U (en) * | 2017-08-25 | 2018-05-01 | 西安万泰燃气设备有限公司 | A kind of modified form pipe gas self-closing valve |
| CN113483130A (en) * | 2021-07-09 | 2021-10-08 | 西安东新石油设备厂有限公司 | Multifunctional pipeline gas self-closing valve and self-closing method thereof |
| CN216200933U (en) * | 2021-11-24 | 2022-04-05 | 西安友谊燃气设备有限公司 | Timing self-closing valve for gas pipeline |
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| CN219755354U (en) * | 2023-05-05 | 2023-09-26 | 浙江万盛机械有限公司 | Gas self-closing valve with timing closing function |
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| CN117267429A (en) | 2023-12-22 |
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