CN116677803A - Multifunctional pipeline gas self-closing valve - Google Patents
Multifunctional pipeline gas self-closing valve Download PDFInfo
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- CN116677803A CN116677803A CN202310658551.6A CN202310658551A CN116677803A CN 116677803 A CN116677803 A CN 116677803A CN 202310658551 A CN202310658551 A CN 202310658551A CN 116677803 A CN116677803 A CN 116677803A
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- Prior art keywords
- self
- closing valve
- fixed
- gas
- closing
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- 239000007789 gas Substances 0.000 claims abstract description 157
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000002737 fuel gas Substances 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 14
- 230000000149 penetrating effect Effects 0.000 claims abstract description 11
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000011160 research 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
-
- 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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
-
- 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
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
- F16K31/607—Handles characterised by particular material, by special measures to obtain aesthetical effects, or by auxiliary functions, e.g. storage
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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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
- F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
- F16K41/043—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles
- F16K41/046—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing for spindles which only rotate, i.e. non-rising spindles for rotating valves
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The utility model discloses a multifunctional pipeline gas self-closing valve, which comprises a self-closing valve shell, wherein the side wall of the self-closing valve shell is provided with an air inlet hole and an air outlet hole; the self-closing valve is internally provided with a pressure abnormal self-closing component, the pressure abnormal self-closing component comprises a first supporting frame, a movable rod, a closing block, a transverse plate, a vertical rod, a movable block, a permanent magnet, a resetting piece and a first connecting rod movably connected with the movable block, and one end of the first connecting rod, which is far away from the movable block, is rotatably connected with one end of the movable rod, which is close to the fuel gas conveying pipe; the pressure abnormal self-closing assembly further comprises an elastic rubber disc, a central rod penetrating through the top of the self-closing valve shell and connected with the self-closing valve shell in a sliding mode, an iron sheet fixed to the lower end of the central rod, and a balance cavity fixed to the top of the self-closing valve shell, wherein the upper end of the central rod is fixed to the inner top wall of the balance cavity, and the bottom of the iron sheet is fixed to the elastic rubber disc. The utility model avoids the probability of leakage of the fuel gas when the fuel gas comes because the fuel gas switch is not closed after the fuel gas is stopped by a user, and enhances the safety.
Description
Technical Field
The utility model relates to the technical field of self-closing valves, in particular to a multifunctional pipeline gas self-closing valve.
Background
The self-closing valve for pipeline gas is installed on the pipeline of low-pressure gas system, and when the gas supply pressure of pipeline is under-pressure or over-pressure, it can be automatically closed and opened manually without using electricity or other external power. The self-closing valve for the pipeline gas is suitable for pipeline natural gas, liquefied petroleum gas and artificial gas. The basic principle of the pipeline gas self-closing valve is that permanent magnetic materials are magnetized according to design requirements to form a permanent memory multipolar permanent magnetic linkage mechanism, the change of gas pressure parameters passing through the multipolar permanent magnetic linkage mechanism is identified, and when the gas pressure parameters exceed a safety set value, the valve is automatically closed, and a gas source is cut off.
For this reason, long-term research has been carried out and various technical solutions have been proposed. The Chinese patent ZL00234322.3 discloses a gas safety hose, which comprises a hose, wherein at least one end of the hose is connected with a safety valve to form a hose assembly, and a linear air passage is formed in the hose assembly; the outer wall of the hose is covered with a protective layer. The Chinese patent ZL201220345114.6 discloses an automatic safety ball valve for fuel gas, which consists of a main valve sleeve assembly, a sphere assembly and a threaded interface assembly; the ball body is internally embedded with an air valve frame, a control spring and an automatic valve plate, and is limited by a shaft clamp spring; after the start button is pressed, the automatic valve plate moves axially, and the air source is conducted; the automatic valve plate and the inner cavity of the sphere form an annular gas channel to form a quantitative flowmeter, so that quantitative control is realized. However, both patent technologies have certain technical defects, so on the basis of the two patents, the utility model patent 201320069761.3 provides an automatic gas safety valve which mainly comprises a threaded joint, an air outlet nozzle, a front valve sleeve, an automatic main valve body shutoff device and an air inlet threaded joint. Because the automatic control device is started to push the air outlet nozzle, the problem of gas leakage caused by external force movement friction still exists, and unsafe factors still exist. The utility model patent CN201310186461.8 has the advantages that the gas ball valve is automatically turned off when overpressure and overflow occur, but the problem of leakage of overpressure and under-pressure of the pipeline gas is solved, so that the multifunctional pipeline gas self-closing valve needs to be updated and designed.
Disclosure of Invention
In order to solve the problems, the utility model provides a multifunctional pipeline gas self-closing valve.
The technical aim of the utility model is realized by the following technical scheme: the multifunctional pipeline gas self-closing valve comprises a self-closing valve shell used for connecting a gas inlet pipe and a gas conveying pipe, wherein a gas inlet hole is formed in the position, corresponding to the gas inlet pipe, of the side wall of the self-closing valve shell, the inner diameter of the gas inlet hole is smaller than that of the gas inlet pipe, and a gas outlet hole is formed in the position, corresponding to the gas conveying pipe, of the side wall of the self-closing valve shell;
the automatic closing valve is characterized in that a pressure abnormal self-closing component is arranged in the self-closing valve casing and comprises a first support frame fixed with the inner bottom wall of the self-closing valve casing, a movable rod penetrating through the first support frame and connected with the first support frame in a sliding manner, a closing block fixed with one end of the movable rod far away from the fuel gas conveying pipe, a transverse plate fixed with the inner wall of the self-closing valve casing, a vertical rod penetrating through the transverse plate and connected with the transverse plate in a sliding manner, a movable block fixed with the lower end of the vertical rod, a permanent magnet fixed with the upper end of the vertical rod, a reset piece arranged between the permanent magnet and the transverse plate and a first connecting rod movably connected with the movable block, wherein one end of the first connecting rod far away from the movable block is rotatably connected with one end of the movable rod close to the fuel gas conveying pipe;
the pressure anomaly self-closing assembly further comprises an elastic rubber disc fixed with the self-closing valve shell, a central rod penetrating through the top of the self-closing valve shell and connected with the self-closing valve shell in a sliding mode, an iron sheet fixed with the lower end of the central rod and a balance cavity fixed with the top of the self-closing valve shell, the upper end of the central rod is fixed with the inner top wall of the balance cavity, and the bottom of the iron sheet is fixed with the elastic rubber disc.
Through adopting above-mentioned technical scheme, when gas air feed stopped, the inside last part gas of gas pipeline was burnt out, the atmospheric pressure in the self-closing valve casing reduces, the pressure between the roof in elastic rubber dish top and the self-closing valve casing is greater than the internal pressure of self-closing valve casing, the elastic rubber dish is downdraft, the iron sheet is adsorbed by the permanent magnet, under the effect of center pole, the montant promotes movable block down motion, the movable block is through head rod pulling movable rod for the closed piece moves towards one side that is close to the self-closing valve casing, until closed piece shutoff inlet port, the gas circuit is closed, the probability of revealing when having avoided causing gas to come the gas because of the user does not close the gas switch after the gas interruption has strengthened the safety in utilization.
Further, the balance cavity is made of flexible materials, an accommodating cavity for inserting the movable block is integrally formed in the bottom of the self-closing valve shell, a second supporting frame is fixed on the inner bottom wall of the self-closing valve shell, a second connecting rod is movably connected to the second supporting frame, and one end, far away from the gas conveying pipe, of the second connecting rod is movably connected with the movable block.
Through adopting above-mentioned technical scheme, the setting of second connecting rod, at the head rod pulling movable rod for the closed piece has played balanced motion's effect towards the in-process that is close to the one side motion of self-closing valve casing.
Further, the gas inlet pipe is fixed and communicated with an overcurrent protection pipe, an overcurrent protection component is arranged in the overcurrent protection pipe, the overcurrent protection component comprises an air inlet plate fixed with the inner wall of the overcurrent protection pipe, an overcurrent rod penetrating through the air inlet plate and connected with the air inlet plate in a sliding mode, a protection plate fixedly sleeved on the overcurrent rod and a spring sleeved on the overcurrent rod, a plurality of penetrating holes are uniformly formed in the air inlet plate, the cross section of the protection plate is circular, an air vent is formed in one end, close to the self-closing valve shell, of the overcurrent protection pipe, the diameter of the protection plate is smaller than the inner diameter of the overcurrent protection pipe and larger than the diameter of the air vent, one end of the spring is fixed with the surface, close to one side of the self-closing valve shell, of the protection plate, and the other end of the spring is fixed with the inner wall of the air vent.
Through adopting above-mentioned technical scheme, when the gas transfer line was revealed, gas transfer volume is greater than the gas consumption of gas cooking utensils, the pressure in the gas intake pipe increases, make the protection shield move towards one side that is close to the self-closing valve casing, the spring is compressed, until the protection shield shutoff air vent completely, stop the back of air feed, the pressure in the self-closing valve casing downside cavity reduces, the self-closing valve casing internal pressure at elastic rubber dish top is great, make montant promote movable block downstream, until the shutoff inlet port of closure block, the gas circuit is closed, before the problem of revealing of gas transfer line has not been solved, even the user manually drives the balance cavity and resets, the balance cavity also can push down again because of the atmospheric pressure reason, the gas circuit still keeps closed state, in time inspect the reason of revealing and overhaul of user.
Further, the air inlet plate is positioned at a position of the overcurrent protection pipe, which is far away from one side of the self-closing valve shell, and the distance between the surface of the air inlet plate, which is far away from one side of the self-closing valve shell, and the inner wall of the overcurrent protection pipe, which is far away from one side of the self-closing valve shell, is larger than 1cm.
By adopting the technical scheme, the flow of the fuel gas conveyed by the fuel gas inlet pipe is ensured to be maintained in a safe range.
Further, the reset piece is an elastic rubber tube, the upper end of the elastic rubber tube is fixed with the bottom surface of the permanent magnet, and the lower end of the elastic rubber tube is fixed with the upper surface of the transverse plate.
Through adopting above-mentioned technical scheme, elastic rubber tube adopts elastic material to make, and when the pressure in the self-closing valve casing was balanced, elastic rubber tube kept former length, and the closed piece is kept away from the inlet port, and it is unobstructed to admit air, and when the self-closing valve casing internal pressure at elastic rubber disk top was great, elastic rubber tube was compressed, until the gas circuit was closed completely.
Further, be provided with the ball valve on the gas conveyer pipe, the ball valve includes the installation shell that is fixed and communicate with the gas conveyer pipe, the rotor plate of being connected with the installation shell inner wall rotation, with the axis of rotation that the rotor plate lower extreme is fixed, with the spheroid that the axis of rotation lower extreme is fixed and with the fixed operation piece in rotor plate top, run through on the spheroid and offered the preformed hole, the diameter of preformed hole equals with the internal diameter of gas conveyer pipe.
Through adopting above-mentioned technical scheme, the setting of ball valve, the convenience of customers opens and close the gas air feed through the operation piece according to self needs.
Further, a sealing ring is sleeved on the rotating shaft, the sealing ring is abutted against the inner wall of the mounting shell, and the top of the sealing ring is fixed with the bottom of the rotating plate.
By adopting the technical scheme, the sealing ring is made of rubber materials, and has good elastic performance, so that the installation shell and the rotating plate are kept sealed, normal gas conveying of the gas conveying pipe is ensured, and the accident occurrence probability is reduced.
Further, the cross section of the operation block is rectangular, and the length direction of the operation block is parallel to the axial direction of the fuel gas conveying pipe.
Through adopting above-mentioned technical scheme, when the length direction of operation piece is parallel with the axial of gas conveyer pipe, the ball valve is opened, and the gas circuit is unobstructed, and when the length direction of operation piece and perpendicular, the ball valve is closed, and the gas circuit is closed to the user knows the logical section of gas accurately.
In summary, the utility model has the following beneficial effects:
1. according to the utility model, when gas supply is stopped, the last part of gas in the gas pipeline is burnt out, the gas pressure in the self-closing valve shell is reduced, the pressure between the top of the elastic rubber disc and the top wall in the self-closing valve shell is greater than the pressure in the self-closing valve shell, the elastic rubber disc bulges downwards, the iron sheet is adsorbed by the permanent magnet, under the action of the center rod, the vertical rod pushes the movable block to move downwards, the movable block pulls the movable rod through the first connecting rod, so that the closing block moves towards one side close to the self-closing valve shell until the closing block seals the gas inlet hole, the gas path is closed, the probability of leakage when the gas comes due to the fact that a gas switch is not closed after the gas is stopped by a user is avoided, and the use safety is enhanced;
2. according to the utility model, when the gas conveying pipe leaks, the gas conveying amount is larger than the gas consumption amount of the gas cooker, the pressure in the gas inlet pipe is increased, so that the protection plate moves towards one side close to the self-closing valve shell, the spring is compressed until the protection plate completely seals the vent hole, after the gas supply is stopped, the pressure in the cavity at the lower side of the self-closing valve shell is reduced, the pressure in the self-closing valve shell at the top of the elastic rubber disc is larger, so that the vertical rod pushes the movable block to move downwards until the closing block seals the gas inlet hole, the gas channel is closed, before the leakage problem of the gas conveying pipe is not solved, even if a user drives the balance cavity to reset manually, the balance cavity is pressed down again due to the gas pressure, and the gas channel is kept in a closed state, so that a user can check the leakage reason in time and overhaul.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a self-closing assembly for highlighting pressure anomalies according to an embodiment of the present utility model.
In the figure: 1. a self-closing valve housing; 11. an air inlet hole; 12. an air outlet hole; 13. a receiving chamber; 14. a second support frame; 141. a second connecting rod; 2. a pressure anomaly self-closing assembly; 21. a first support frame; 22. a movable rod; 23. a closing block; 24. a cross plate; 25. a vertical rod; 26. a movable block; 27. a permanent magnet; 28. a reset member; 29. a first connecting rod; 210. an elastic rubber disc; 211. a central rod; 212. iron sheet; 213. a balancing cavity; 3. an overcurrent protection assembly; 31. an air inlet plate; 311. a penetration hole; 32. an overcurrent rod; 33. a protective plate; 34. a spring; 4. a fuel gas inlet pipe; 5. a gas delivery pipe; 6. an overcurrent protection tube; 61. a vent hole; 7. a ball valve; 71. a mounting shell; 72. a rotating plate; 73. a rotating shaft; 74. a sphere; 75. an operation block; 8. a preformed hole; 9. and (3) sealing rings.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.
As shown in fig. 1 and 2, the embodiment of the utility model discloses a multifunctional pipeline gas self-closing valve, which comprises a self-closing valve shell 1, a pressure abnormality self-closing assembly 2 and an overcurrent protection assembly 3. The self-closing valve shell 1 is used for connecting the gas inlet pipe 4 and the gas conveying pipe 5, an air inlet hole 11 is formed in the position, corresponding to the gas inlet pipe 4, of the side wall of the self-closing valve shell 1, the inner diameter of the air inlet hole 11 is smaller than that of the gas inlet pipe 4, and an air outlet hole 12 is formed in the position, corresponding to the gas conveying pipe 5, of the side wall of the self-closing valve shell 1.
The pressure abnormal self-closing assembly 2 is arranged in the self-closing valve housing 1, and the pressure abnormal self-closing assembly 2 comprises a first supporting frame 21, a movable rod 22, a closing block 23, a transverse plate 24, a vertical rod 25, a movable block 26, a permanent magnet 27, a reset piece 28, a first connecting rod 29, an elastic rubber disc 210, a central rod 211, an iron sheet 212 and a balance cavity 213. The first support frame 21 is fixed with the inner bottom wall of the self-closing valve shell 1, the movable rod 22 is of a round rod-shaped structure, the axis of the movable rod 22 is parallel to the axis of the gas inlet pipe 4, and the movable rod 22 penetrates through the first support frame 21 and is connected with the first support frame 21 in a sliding mode. The closing block 23 is in a round block structure, the axis of the closing block is coincident with the axis of the movable rod 22, and the side wall of one side of the closing block 23 is fixed with one end of the movable rod 22, which is far away from the fuel gas conveying pipe 5. The cross plate 24 is horizontally arranged, and the cross plate 24 is fixed with the inner wall of the self-closing valve housing 1. The vertical rod 25 is a round rod-shaped structure which is vertically arranged, penetrates through the transverse plate 24 and is connected with the transverse plate 24 in a sliding manner. The top of the movable block 26 is fixed with the lower end of the vertical rod 25, the permanent magnet 27 is fixed with the upper end of the vertical rod 25, the resetting piece 28 is arranged between the permanent magnet 27 and the transverse plate 24, the resetting piece 28 is an elastic rubber tube, the upper end of the elastic rubber tube is fixed with the bottom surface of the permanent magnet 27, and the lower end of the elastic rubber tube is fixed with the upper surface of the transverse plate 24. One end of the first connecting rod 29 is movably connected with the movable block 26, and the other end of the first connecting rod 29 is rotatably connected with one end of the movable rod 22, which is close to the fuel gas conveying pipe 5. The elastic rubber disk 210 is fixed to the self-closing valve housing 1, the axis of the center rod 211 coincides with the axis of the vertical rod 25, and the center rod 211 penetrates through the top of the self-closing valve housing 1 and is slidably connected to the self-closing valve housing 1. The iron sheet 212 is fixed with the lower end of the central rod 211, the balance cavity 213 is fixed with the top of the self-closing valve shell 1, the balance cavity 213 is made of flexible materials, the upper end of the central rod 211 is fixed with the inner top wall of the balance cavity 213, and the bottom of the iron sheet 212 is fixed with the elastic rubber disc 210. When gas supply is stopped, the last part of gas in the gas pipeline is burnt out, the gas pressure in the self-closing valve shell 1 is reduced, the pressure between the top of the elastic rubber disc 210 and the inner top wall of the self-closing valve shell 1 is larger than the pressure in the self-closing valve shell 1, the elastic rubber disc 210 bulges downwards, the iron sheet 212 is adsorbed by the permanent magnet 27, under the action of the central rod 211, the vertical rod 25 pushes the movable block 26 to move downwards, the movable block 26 pulls the movable rod 22 through the first connecting rod 29, so that the closing block 23 moves towards the side close to the self-closing valve shell 1 until the closing block 23 seals the gas inlet hole 11, the gas path is closed, the probability of leakage when gas comes from because a gas switch is not closed after the gas is stopped by a user is avoided, and the use safety is enhanced.
In this embodiment, the bottom of the self-closing valve housing 1 is integrally formed with a receiving cavity 13 into which the movable block 26 is inserted, the second supporting frame 14 is fixed on the bottom of the self-closing valve housing 1, the second supporting frame 14 is movably connected with a second connecting rod 141, and one end of the second connecting rod 141 far away from the gas delivery pipe 5 is also movably connected with the movable block 26.
The gas inlet pipe 4 is fixedly and communicated with an overcurrent protection pipe 6, one end, close to the self-closing valve shell 1, of the overcurrent protection pipe 6 is provided with a vent hole 61, the overcurrent protection assembly 3 is arranged in the overcurrent protection pipe 6, and the overcurrent protection assembly 3 comprises an air inlet plate 31, an overcurrent rod 32, a protection plate 33 and a spring 34. The air inlet plate 31 is of a circular plate structure, the axis of the air inlet plate is coincident with the axis of the fuel gas inlet pipe 4, the side wall of the air inlet plate 31 is fixed with the inner wall of the overcurrent protection pipe 6, and a plurality of penetration holes 311 are uniformly formed in the air inlet plate 31. The flow-through rod 32 has a circular rod-shaped structure, the axis of which coincides with the axis of the gas inlet pipe 4, and the flow-through rod 32 is arranged on the inlet plate 31 in a penetrating manner and is connected with the inlet plate 31 in a sliding manner. The protection plate 33 has a disk-like structure, the axis of which coincides with the axis of the gas inlet pipe 4, and the protection plate 33 is fitted over the overcurrent rod 32 and fixed to the overcurrent rod 32. The spring 34 is sleeved on the overcurrent rod 32, the diameter of the protective plate 33 is smaller than the inner diameter of the overcurrent protection pipe 6 and larger than the diameter of the vent hole 61, one end of the spring 34 is fixed with the surface of the protective plate 33, which is close to the side of the self-closing valve shell 1, and the other end of the spring 34 is fixed with the inner wall of the vent hole 61. When the gas delivery pipe 5 leaks, the gas delivery amount is larger than the gas consumption amount of the gas cooker, the pressure in the gas inlet pipe 4 is increased, the protection plate 33 moves towards one side close to the self-closing valve shell 1, the spring 34 is compressed until the protection plate 33 completely seals the vent hole 61, after stopping gas supply, the pressure in the lower side cavity of the self-closing valve shell 1 is reduced, the pressure in the self-closing valve shell 1 at the top of the elastic rubber disc 210 is larger, the vertical rod 25 pushes the movable block 26 to move downwards until the closing block 23 seals the gas inlet hole 11, the gas circuit is closed, and before the leakage problem of the gas delivery pipe 5 is not solved, even if a user manually drives the balance cavity 213 to reset, the balance cavity 213 is pressed down again due to the air pressure, and the gas circuit still keeps a closed state, so that the user can check the leakage reason in time and overhaul.
In the present embodiment, the intake plate 31 is located at a position on the side of the overcurrent protection pipe 6 away from the self-closing valve housing 1, and the distance between the surface of the side of the intake plate 31 away from the self-closing valve housing 1 and the inner wall of the side of the overcurrent protection pipe 6 away from the self-closing valve housing 1 is greater than 1cm. The gas conveying pipe 5 is provided with a ball valve 7, the ball valve 7 comprises an installation shell 71 which is fixed and communicated with the gas conveying pipe 5, a rotating plate 72 which is rotationally connected with the inner wall of the installation shell 71, a rotating shaft 73 which is fixed with the lower end of the rotating plate 72, a ball 74 which is fixed with the lower end of the rotating shaft 73 and an operating block 75 which is fixed with the top of the rotating plate 72, the ball 74 is provided with a preformed hole 8 in a penetrating way, and the diameter of the preformed hole 8 is equal to the inner diameter of the gas conveying pipe 5.
In this embodiment, the sealing ring 9 is sleeved on the rotating shaft 73, the sealing ring 9 abuts against the inner wall of the mounting shell 71, the top of the sealing ring 9 is fixed with the bottom of the rotating plate 72, and the sealing ring 9 is made of rubber materials and has good elastic performance, so that the mounting shell 71 and the rotating plate 72 are kept sealed, normal gas conveying of the gas conveying pipe 5 is ensured, and the accident occurrence probability is reduced. The cross section of operation piece 75 personally submits the rectangle, and the length direction of operation piece 75 is parallel with the axial of gas conveyer pipe 5, and when the length direction of operation piece 75 was parallel with the axial of gas conveyer pipe 5, ball valve 7 was opened, and the gas circuit is unobstructed, and when the length direction of operation piece 75 was with perpendicular, ball valve 7 was closed, and the gas circuit was closed to the user accurately knows the section of leading to of gas.
The use principle of the multifunctional pipeline gas self-closing valve in the embodiment is as follows: when gas supply is stopped, the last part of gas in the gas pipeline is burnt out, the gas pressure in the self-closing valve shell 1 is reduced, the pressure between the top of the elastic rubber disc 210 and the inner top wall of the self-closing valve shell 1 is larger than the pressure in the self-closing valve shell 1, the elastic rubber disc 210 bulges downwards, the iron sheet 212 is adsorbed by the permanent magnet 27, under the action of the central rod 211, the vertical rod 25 pushes the movable block 26 to move downwards, the movable block 26 pulls the movable rod 22 through the first connecting rod 29, so that the closing block 23 moves towards the side close to the self-closing valve shell 1 until the closing block 23 seals the gas inlet hole 11, the gas path is closed, the probability of leakage when gas comes from because a gas switch is not closed after the gas is stopped by a user is avoided, and the use safety is enhanced.
When the gas delivery pipe 5 leaks, the gas delivery amount is larger than the gas consumption amount of the gas cooker, the pressure in the gas inlet pipe 4 is increased, the protection plate 33 moves towards one side close to the self-closing valve shell 1, the spring 34 is compressed until the protection plate 33 completely seals the vent hole 61, after stopping gas supply, the pressure in the lower side cavity of the self-closing valve shell 1 is reduced, the pressure in the self-closing valve shell 1 at the top of the elastic rubber disc 210 is larger, the vertical rod 25 pushes the movable block 26 to move downwards until the closing block 23 seals the gas inlet hole 11, the gas circuit is closed, and before the leakage problem of the gas delivery pipe 5 is not solved, even if a user manually drives the balance cavity 213 to reset, the balance cavity 213 is pressed down again due to the air pressure, and the gas circuit still keeps a closed state, so that the user can check the leakage reason in time and overhaul.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (8)
1. The utility model provides a multi-functional pipeline gas self-closing valve, is including being used for connecting self-closing valve casing (1) of gas intake pipe (4) and gas conveyer pipe (5), characterized by: an air inlet hole (11) is formed in the side wall of the self-closing valve shell (1) at a position corresponding to the gas inlet pipe (4), the inner diameter of the air inlet hole (11) is smaller than that of the gas inlet pipe (4), and an air outlet hole (12) is formed in the side wall of the self-closing valve shell (1) at a position corresponding to the gas conveying pipe (5);
the automatic closing valve is characterized in that a pressure abnormal self-closing assembly (2) is arranged in the self-closing valve shell (1), the pressure abnormal self-closing assembly (2) comprises a first support frame (21) fixed with the inner bottom wall of the self-closing valve shell (1), a movable rod (22) penetrating through the first support frame (21) and connected with the first support frame (21) in a sliding mode, a closing block (23) fixed with one end, far away from a fuel gas conveying pipe (5), of the movable rod (22), a transverse plate (24) fixed with the inner wall of the self-closing valve shell (1), a vertical rod (25) penetrating through the transverse plate (24) and connected with the transverse plate (24) in a sliding mode, a movable block (26) fixed with the lower end of the vertical rod (25), a permanent magnet (27) fixed with the upper end of the vertical rod (25), a reset piece (28) arranged between the permanent magnet (27) and the transverse plate (24) and a first connecting rod (29) movably connected with the movable block (26), and one end, far away from the movable rod (26), of the first connecting rod (29) is connected with one end, close to the fuel gas conveying pipe (5), of the movable rod (22) in a rotating mode.
The pressure anomaly self-closing assembly (2) further comprises an elastic rubber disc (210) fixed with the self-closing valve shell (1), a central rod (211) penetrating through the top of the self-closing valve shell (1) and connected with the self-closing valve shell (1) in a sliding mode, an iron sheet (212) fixed with the lower end of the central rod (211) and a balance cavity (213) fixed with the top of the self-closing valve shell (1), the upper end of the central rod (211) is fixed with the inner top wall of the balance cavity (213), and the bottom of the iron sheet (212) is fixed with the elastic rubber disc (210).
2. The multi-functional conduit gas self-closing valve according to claim 1, wherein: the balance cavity (213) is made of flexible materials, the accommodating cavity (13) for the movable block (26) to be inserted is integrally formed at the bottom of the self-closing valve housing (1), a second supporting frame (14) is fixed on the inner bottom wall of the self-closing valve housing (1), a second connecting rod (141) is movably connected to the second supporting frame (14), and one end, far away from the gas conveying pipe (5), of the second connecting rod (141) is movably connected with the movable block (26).
3. The multi-functional conduit gas self-closing valve according to claim 2, characterized in that: the utility model provides a gas intake pipe (4) is last to be fixed and to communicate has overcurrent protection pipe (6), be provided with overcurrent protection subassembly (3) in overcurrent protection pipe (6), overcurrent protection subassembly (3) include with overcurrent protection pipe (6) inner wall fixed intake plate (31), run through set up on intake plate (31) and with intake plate (31) slip connected overflow pole (32), fixed cover locate on overflow pole (32) protection shield (33) and cover locate on overflow pole (32) spring (34), a plurality of penetration holes (311) have evenly been seted up on intake plate (31), the cross-section of protection shield (33) is circular, one end that overcurrent protection pipe (6) are close to self-closing valve casing (1) is provided with air vent (61), the diameter of protection shield (33) is less than the internal diameter of overcurrent protection pipe (6), and is greater than the diameter of air vent (61), one end and the protection shield (33) are close to the surface fixed of self-closing valve casing one side of self-closing valve casing (1), the other end of spring (34) is fixed with air vent (61).
4. A multi-functional conduit gas self-closing valve according to claim 3, characterized in that: the air inlet plate (31) is positioned at a position of the overcurrent protection tube (6) away from one side of the self-closing valve shell (1), and the distance between the surface of the air inlet plate (31) away from one side of the self-closing valve shell (1) and the inner wall of the overcurrent protection tube (6) away from one side of the self-closing valve shell (1) is larger than 1cm.
5. The multi-functional conduit gas self-closing valve according to claim 4, wherein: the resetting piece (28) is an elastic rubber tube, the upper end of the elastic rubber tube is fixed with the bottom surface of the permanent magnet (27), and the lower end of the elastic rubber tube is fixed with the upper surface of the transverse plate (24).
6. The multi-functional conduit gas self-closing valve according to claim 5, wherein: be provided with ball valve (7) on gas conveyer pipe (5), ball valve (7) include with gas conveyer pipe (5) fixed and the installation shell (71) of intercommunication, rotate rotation board (72) be connected with installation shell (71) inner wall rotation, with rotation board (72) lower extreme fixed axis of rotation (73), with rotation board (73) lower extreme fixed spheroid (74) and with rotation board (72) fixed operation piece (75) in top, run through on spheroid (74) and offered preformed hole (8), the diameter of preformed hole (8) equals with the internal diameter of gas conveyer pipe (5).
7. The multi-functional conduit gas self-closing valve according to claim 6, wherein: the rotary shaft (73) is sleeved with a sealing ring (9), the sealing ring (9) is abutted against the inner wall of the mounting shell (71), and the top of the sealing ring (9) is fixed with the bottom of the rotary plate (72).
8. The multi-functional conduit gas self-closing valve according to claim 6, wherein: the cross section of the operation block (75) is rectangular, and the length direction of the operation block (75) is parallel to the axial direction of the fuel gas conveying pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310658551.6A CN116677803A (en) | 2023-06-05 | 2023-06-05 | Multifunctional pipeline gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310658551.6A CN116677803A (en) | 2023-06-05 | 2023-06-05 | Multifunctional pipeline gas self-closing valve |
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| Publication Number | Publication Date |
|---|---|
| CN116677803A true CN116677803A (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310658551.6A Pending CN116677803A (en) | 2023-06-05 | 2023-06-05 | Multifunctional pipeline gas self-closing valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052957A (en) * | 2023-10-10 | 2023-11-14 | 山东振宇厨业有限公司 | Linkage safety regulating valve for gas cooker |
| CN117267429A (en) * | 2023-11-23 | 2023-12-22 | 西安友谊燃气设备有限公司 | Timing self-closing valve |
-
2023
- 2023-06-05 CN CN202310658551.6A patent/CN116677803A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117052957A (en) * | 2023-10-10 | 2023-11-14 | 山东振宇厨业有限公司 | Linkage safety regulating valve for gas cooker |
| CN117052957B (en) * | 2023-10-10 | 2024-01-26 | 山东振宇厨业有限公司 | Linkage safety regulating valve for gas cooker |
| CN117267429A (en) * | 2023-11-23 | 2023-12-22 | 西安友谊燃气设备有限公司 | Timing self-closing valve |
| CN117267429B (en) * | 2023-11-23 | 2024-01-30 | 西安友谊燃气设备有限公司 | Timing self-closing valve |
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