CN113483133A - Electromagnetic type safety self-closing valve with emergency cut-off function - Google Patents
Electromagnetic type safety self-closing valve with emergency cut-off function Download PDFInfo
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- CN113483133A CN113483133A CN202110934123.2A CN202110934123A CN113483133A CN 113483133 A CN113483133 A CN 113483133A CN 202110934123 A CN202110934123 A CN 202110934123A CN 113483133 A CN113483133 A CN 113483133A
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- 230000007246 mechanism Effects 0.000 claims description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 37
- 238000007789 sealing Methods 0.000 claims description 23
- 210000003454 tympanic membrane Anatomy 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 230000001012 protector Effects 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000004146 energy storage Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 3
- 239000007789 gas Substances 0.000 description 85
- 238000000034 method Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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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
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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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
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates
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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
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
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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
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention discloses an electromagnetic type safety self-closing valve with an emergency cut-off function, which is designed aiming at the condition that a pipeline gas self-closing valve cannot be closed by self under the condition of trace leakage of gas and cannot be connected with a gas alarm device. Therefore, the gas safety can be effectively monitored and guaranteed, and the problem that the pipeline gas self-closing valve cannot be closed by itself and cannot be connected with an alarm device when trace gas leaks in the existing market is solved.
Description
Technical Field
The invention relates to the technical field of gas valves, in particular to an electromagnetic type safety self-closing valve with an emergency cut-off function.
Background
In the prior art, natural gas as clean energy has entered thousands of households. In the convenient process of using natural gas, the safety problem of gas is not ignored due to the flammable and explosive characteristics of natural gas. According to statistics, accidents caused by gas leakage occur frequently every year, gas explosion harm is extremely large, and disasters and losses which are difficult to recover are brought to many families. Therefore, gas leakage monitoring is an important issue in gas use.
At present, various pipeline gas self-closing valves exist in the market, and can realize self-closing and cut off a gas source under the unsafe conditions that pipeline gas has abnormal pressure and excessive flow, and a rubber pipe is damaged or falls off to cause underpressure and the like. However, the pipeline gas self-closing valve cannot be closed when gas is leaked in a trace manner, and cannot be connected with a gas alarm device, and when the alarm device detects that gas is leaked, an electric signal cannot be output to the pipeline gas self-closing valve, so that the pipeline gas self-closing valve is automatically closed. The gas can slowly reach 5% -15% explosion limit after long-time micro leakage, and explosion accidents can also be caused, so that if no person is at home of a user, even if an alarm device is installed, the gas source can not be automatically cut off.
Disclosure of Invention
In view of the above, the present invention has been developed to provide an electromagnetic safety self-closing valve with an emergency shut-off function that overcomes, or at least partially solves, the above-mentioned problems.
According to one aspect of the present invention, there is provided an electromagnetic safety self-closing valve with an emergency shut-off function, comprising:
a sealing mechanism, a floating mechanism, an electromagnetic actuating mechanism and a switch linkage mechanism, wherein,
the valve body 23, the rubber tympanic membrane 24 and the valve cover 14 are connected through the valve body 23 and the valve cover 14 by screw threads to form a sealing mechanism;
the rubber tympanic membrane 24, the mandrel 15, the metal gasket 31 and the nut 32 form a floating mechanism;
the fixed iron core 4, the annular permanent magnet 5, the coil framework 6, the electromagnetic coil 7, the injection molding shell 8 and the external cable 9 form an electromagnetic actuating mechanism, and the electromagnetic actuating mechanism is arranged right above the valve cover 14 through a fastening screw 13;
the handle 16, the M4 screw 17, the O-shaped ring 18, the valve core 19, the air outlet 20, the plastic sealing gasket 21 and the copper ball 22 are combined to form a switch linkage mechanism, and the gas channel of the valve body 23 can be opened and closed by rotating the handle 16.
The magnetic ring 29 is connected with the sealing seat 26 through an M3 screw 30; the rubber flat gasket 27 is tightly embedded in the sealing seat 26;
the fixed iron cover 25 fixes the sealing seat 26 inside the valve body 23 in a threaded manner, so that the rubber flat gasket 27 is tightly blocked on the cut-off of the gas passage of the valve body 23.
The valve opening fixture block 12 is connected with the valve opening mechanism 2 through a fastening screw, and the valve opening mechanism 2 is arranged on the peripheries of the pull cap 1 and the valve opening pull rod 3;
the pull cap 1 is fixed on the upper end of the valve opening pull rod 3.
The movable iron core 10 is sleeved on the periphery of the valve opening pull rod 3 and can move; the spring 11 is sleeved on the periphery of the movable iron core 10.
The over-flow protector 28 is independently arranged in the pipeline at one side.
The valve opening operation comprises the following steps:
by manually moving the valve opening mechanism 2 upwards, the valve opening mechanism 2 can drive the pull cap 1, the valve opening pull rod 3 and the mandrel 15 to move upwards, meanwhile, the mandrel 15 can drive the rubber tympanic membrane 24, the metal gasket 31 and the screw cap 32 to move upwards, and then the magnetic ring adsorbed at the bottom of the mandrel 15 moves upwards to drive the rubber flat gasket 27 to leave a gas channel cut-off port of the valve body 23; the gas flows into the cavity of the valve body 23, and at a set pressure value, the gas supports the rubber tympanic membrane 24 at a fixed position;
when the valve opening mechanism 2 moves upwards, the movable iron core 10 is driven by the valve opening fixture block 12 to move upwards to be attracted and contacted with the fixed iron core 4, and the spring 11 is compressed.
The under-pressure shut-off valve comprises:
when the pressure of the gas in the valve body 23 is lower than a set value, the rubber tympanic membrane 24 cannot be kept at an opening fixed position, and the whole body moves downwards, and the rubber flat gasket 27 is driven to move to a gas channel stop opening of the valve body 23, so that the gas flow is blocked, and the valve is closed.
The excess pressure shut-off valve includes:
when the gas pressure in the valve body 23 is higher than the set value, the rubber drum 24 continues to move upwards. Due to the limitation of the fixing iron cover 25, the magnetic ring 29 will be separated from the mandrel 15, and then the magnetic ring 29 will drive the sealing seat 26 and the rubber flat pad 27 to move downwards. The flat rubber gasket 27 moves to the gas passage cutoff of the valve body 23, blocking the gas flow, closing the valve.
The excessive flow shut-off valve includes:
when the gas flow is abnormally too large, the internal elements of the over-flow protector 28 can block the gas flow, then the internal pressure of the valve body 23 is lower than a set value, the rubber tympanic membrane 24 cannot be kept at an opening fixed position, the whole rubber tympanic membrane moves downwards, the rubber flat gasket 27 is driven to move to a gas channel stop opening of the valve body 23, the gas flow is blocked, and the valve is closed.
The slam shut valve includes:
the electromagnetic safety self-closing valve can receive an external electric pulse signal through an external cable 9, input the external electric pulse signal to an electromagnetic coil 7, generate electromagnetic force, overcome the permanent magnetic force of an annular permanent magnet 5, release the compression energy storage of a spring 11, the spring 11 can drive a movable iron core 10 to move downwards, the movable iron core 11 can impact a bottom protruding part of a valve opening pull rod 3, drive a core shaft 15 to move downwards in a conduction mode, then drive a rubber eardrum 24, a metal gasket 31 and a nut 32 to move downwards, then drive a magnetic ring adsorbed at the bottom of the core shaft 15 to move downwards, and drive a rubber flat gasket 27 to seal a gas channel cut-off port of a valve body 23.
According to one or more technical schemes, the invention provides an electromagnetic type safety self-closing valve with an emergency cut-off function, aiming at the condition that the pipeline gas self-closing valve cannot be self-closed under the condition of trace gas leakage and cannot be connected with a gas alarm device, the invention designs the electromagnetic type safety self-closing valve, which has the advantages that the pipeline gas under-pressure, over-pressure and over-flow can be automatically closed, the pipeline gas under-pressure, over-pressure and over-flow can be connected with the gas alarm device, and when the trace gas leakage reaches an alarm concentration value, the gas alarm device outputs an electric signal, so that a gas source can be cut off emergently. Therefore, the gas safety can be effectively monitored and guaranteed, and the problem that the pipeline gas self-closing valve cannot be closed by itself and cannot be connected with an alarm device when trace gas leaks in the existing market is solved.
The scheme of the embodiment of the invention solves the problems that the existing pipeline gas self-closing valve cannot be closed by self when gas is leaked in a trace amount and cannot be connected with an alarm device in the market. By the electromagnetic device, the function of connecting with an alarm device and realizing emergency cut-off is added on the premise of not influencing other functions of the pipeline gas self-closing valve. The gas leakage monitoring device has a great innovative effect on gas leakage monitoring, and solves the problem that the pipeline gas self-closing valve cannot be closed due to trace leakage.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural view of an electromagnetic safety self-closing valve with an emergency shut-off function according to an embodiment of the invention;
FIG. 2 is a perspective view of an electromagnetic safety self-closing valve with an emergency shut-off function according to an embodiment of the present invention;
figure 3 shows a front view, a left side view and a top view of a six-sided view of an electromagnetic safety self-closing valve with an emergency shut-off function according to one embodiment of the invention.
Reference numerals: the valve comprises a 1-pull cap, a 2-valve opening mechanism, a 3-valve opening pull rod, a 4-fixed iron core, a 5-ring permanent magnet, a 6-coil framework, a 7-electromagnetic coil, an 8-injection shell, a 9-external cable, a 10-movable iron core, a 11-spring, a 12-valve opening clamping block, a 13-fastening screw, a 14-valve cover, a 15-core shaft, a 16-handle, a 17M 4-screw, an 18O-ring, a 19-valve core, a 20-air outlet nozzle (air outlet nozzle), a 21-plastic sealing gasket, a 22-copper ball, a 23-valve body, a 24-rubber tympanic membrane, a 25-fixed iron cover, a 26-sealing seat, a 27-rubber flat gasket, a 28-overflow protector, a 29-magnetic ring, a 30M 3-screw, a 31-metal gasket and a 32-nut.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
Fig. 1 shows a schematic structural view of an electromagnetic safety self-closing valve with an emergency cut-off function of the present embodiment, and referring to fig. 1, the electromagnetic safety self-closing valve with an emergency cut-off function may comprise:
a sealing mechanism, a floating mechanism, an electromagnetic actuating mechanism and a switch linkage mechanism, wherein,
the valve body 23, the rubber tympanic membrane 24 and the valve cover 14 are connected through the threads of the valve body 23 and the valve cover 14 to form a sealing mechanism, so that gas leakage is avoided;
the rubber tympanic membrane 24, the mandrel 15, the metal gasket 31 and the nut 32 are connected to form a floating mechanism capable of moving longitudinally;
the magnetic ring 29 is connected with the sealing seat 26 through an M3 screw 30; the rubber flat gasket 27 is tightly embedded in the sealing seat 26;
the fixed iron cover 25 fixes the sealing seat 26 inside the valve body 23 in a threaded manner, so that the rubber flat gasket 27 is tightly blocked on the cut-off of the gas passage of the valve body 23.
The handle 16, the M4 screw 17, the O-shaped ring 18, the valve core 19, the air outlet (air outlet nozzle) 20, the plastic sealing gasket 21 and the copper ball 22 are combined to form a switch linkage mechanism, and the gas channel of the valve body 23 can be opened and closed by rotating the handle 16.
The fixed iron core 4, the annular permanent magnet 5, the coil framework 6, the electromagnetic coil 7, the injection molding shell 8 and the external cable 9 form an electromagnetic actuating mechanism assembly which is arranged right above the valve cover 14 through a fastening screw 13;
the valve opening fixture block 12 is connected with the valve opening mechanism 2 through a fastening screw; the valve opening mechanism 2 is provided on the outer periphery of the cap 1 and the valve opening lever 3.
The pull cap 1 is fixed on the upper end of the valve opening pull rod 3.
The movable iron core 10 is sleeved on the periphery of the valve opening pull rod 3 and can move; the spring 11 is sleeved on the periphery of the movable iron core 10.
The over-flow protector 28 is independently arranged in the pipeline at one side.
Fig. 2 is a perspective view showing the appearance of an electromagnetic safety self-closing valve with an emergency shut-off function according to an embodiment of the present invention. Fig. 3 is a front view, a left side view and a top view of an electromagnetic safety self-closing valve with an emergency cut-off function according to an embodiment of the invention.
The working principle of the embodiment of the invention is as follows:
the electromagnetic safety self-closing valve is opened:
through manual upward movement of the valve opening mechanism 2, the valve opening mechanism 2 can drive the pull cap 1, the valve opening pull rod 3 and the mandrel 15 to move upward, meanwhile, the mandrel 15 can drive the rubber tympanic membrane 24, the metal gasket 31 and the nut 32 to move upward, and then the magnetic ring adsorbed at the bottom of the mandrel 15 moves upward to drive the rubber flat gasket 27 to leave a gas channel cut-off port of the valve body 23. The gas flows into the cavity of the valve body 23, and at a set pressure value, the gas supports the rubber tympanic membrane 24 at a fixed position.
When the valve opening mechanism 2 moves upwards, the movable iron core 10 is driven by the valve opening fixture block 12 to move upwards to be attracted and contacted with the fixed iron core 4, and the spring 11 is compressed.
Under-voltage closing:
when the pressure of the gas in the valve body 23 is lower than a set value, the rubber tympanic membrane 24 cannot be kept at an opening fixed position, and the whole body moves downwards, and the rubber flat gasket 27 is driven to move to a gas channel stop opening of the valve body 23, so that the gas flow is blocked, and the valve is closed.
And (3) closing overpressure:
when the gas pressure in the valve body 23 is higher than the set value, the rubber drum 24 continues to move upwards. Due to the limitation of the fixing iron cover 25, the magnetic ring 29 will be separated from the mandrel 15, and then the magnetic ring 29 will drive the sealing seat 26 and the rubber flat pad 27 to move downwards. The flat rubber gasket 27 moves to the gas passage cutoff of the valve body 23, blocking the gas flow, closing the valve.
And (3) overcurrent closing:
when the gas flow is abnormally too large, the internal elements of the over-flow protector 28 can block the gas flow, then the internal pressure of the valve body 23 is lower than a set value, the rubber tympanic membrane 24 cannot be kept at an opening fixed position, the whole rubber tympanic membrane moves downwards, the rubber flat gasket 27 is driven to move to a gas channel stop opening of the valve body 23, the gas flow is blocked, and the valve is closed.
Emergency shutdown function:
the electromagnetic safety self-closing valve can receive an external electric pulse signal through an external cable 9, input the external electric pulse signal to an electromagnetic coil 7, generate electromagnetic force, overcome the permanent magnetic force of an annular permanent magnet 5, release the compression energy storage of a spring 11, the spring 11 can drive a movable iron core 10 to move downwards, the movable iron core 11 can impact a bottom protruding part of a valve opening pull rod 3, drive a core shaft 15 to move downwards in a conduction mode, then drive a rubber eardrum 24, a metal gasket 31 and a nut 32 to move downwards, then drive a magnetic ring adsorbed at the bottom of the core shaft 15 to move downwards, and drive a rubber flat gasket 27 to seal a gas channel cut-off port of a valve body 23.
The invention provides an electromagnetic type safety self-closing valve with an emergency cut-off function, aiming at the conditions that a pipeline gas self-closing valve cannot be closed by self under the condition of trace gas leakage and cannot be connected with a gas alarm device, the electromagnetic type safety self-closing valve is provided with a pipeline gas under-pressure, over-pressure and over-flow valve which can be closed automatically and can be connected with the gas alarm device, and when trace gas leakage reaches an alarm concentration value, the gas alarm device outputs an electric signal and can cut off a gas source emergently. Therefore, the gas safety can be effectively monitored and guaranteed, and the problem that the pipeline gas self-closing valve cannot be closed by itself and cannot be connected with an alarm device when trace gas leaks in the existing market is solved.
The scheme of the embodiment of the invention solves the problems that the existing pipeline gas self-closing valve cannot be closed by self when gas is leaked in a trace amount and cannot be connected with an alarm device in the market. By the electromagnetic device, the function of connecting with an alarm device and realizing emergency cut-off is added on the premise of not influencing other functions of the pipeline gas self-closing valve. The gas leakage monitoring device has a great innovative effect on gas leakage monitoring, and solves the problem that the pipeline gas self-closing valve cannot be closed due to trace leakage.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, any of the embodiments claimed in the claims can be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware.
While the foregoing is directed to embodiments of the present invention, it will be appreciated that various modifications, alterations, and adaptations of the invention may be made by those skilled in the art without departing from the spirit of the invention, and that such modifications, alterations, and adaptations are intended to be within the scope of the present application.
Claims (10)
1. An electromagnetic safety self-closing valve with an emergency shut-off function, comprising:
a sealing mechanism, a floating mechanism, an electromagnetic actuating mechanism and a switch linkage mechanism, wherein,
the valve body (23), the rubber tympanic membrane (24) and the valve cover (14) are connected through the valve body (23) and the valve cover (14) to form a sealing mechanism;
the rubber tympanic membrane (24), the mandrel (15), the metal gasket (31) and the screw cap (32) form a floating mechanism;
the electromagnetic actuating mechanism is composed of a fixed iron core (4), an annular permanent magnet (5), a coil framework (6), an electromagnetic coil (7), an injection molding shell (8) and an external cable (9), and is installed right above a valve cover (14) through a fastening screw (13);
the handle (16), the M4 screw (17), the O-shaped ring (18), the valve core (19), the air outlet (20), the plastic sealing pad (21) and the copper ball (22) are combined to form a switch linkage mechanism, and a gas channel of the valve body (23) can be opened and closed by rotating the handle (16).
2. An electromagnetic safety self-closing valve with an emergency shut-off function according to claim 1, further comprising:
the magnetic ring (29) is connected with the sealing seat (26) through an M3 screw (30); the rubber flat gasket (27) is tightly embedded in the sealing seat (26);
the fixed iron cover (25) fixes the sealing seat (26) in the valve body (23) in a thread mode, so that the rubber flat gasket (27) is tightly blocked on the cut-off port of the gas channel of the valve body (23).
3. An electromagnetic safety self-closing valve with an emergency shut-off function according to claim 1, further comprising:
the valve opening clamping block (12) is connected with the valve opening mechanism (2) through a fastening screw, and the valve opening mechanism (2) is arranged on the peripheries of the pull cap (1) and the valve opening pull rod (3);
the pull cap (1) is fixed on the upper end of the valve opening pull rod (3).
4. An electromagnetic safety self-closing valve with an emergency shut-off function according to claim 1, further comprising:
the movable iron core (10) is sleeved on the periphery of the valve opening pull rod (3) and can move; the spring (11) is sleeved on the periphery of the movable iron core (10).
5. An electromagnetic safety self-closing valve with an emergency shut-off function according to claim 1, further comprising:
the over-flow protector (28) is independently arranged in the pipeline at one side.
6. An electromagnetic safety self-closing valve with an emergency shut-off function according to any one of claims 1 to 5, wherein the valve opening operation comprises:
through manually moving the valve opening mechanism (2) upwards, the valve opening mechanism (2) can drive the pull cap (1), the valve opening pull rod (3) and the mandrel (15) to move upwards, meanwhile, the mandrel (15) can drive the rubber tympanic membrane (24), the metal gasket (31) and the nut (32) to move upwards, then the magnetic ring adsorbed at the bottom of the mandrel (15) moves upwards, and the rubber flat gasket (27) is driven to leave a gas channel cut-off opening of the valve body (23); the gas flows into the cavity of the valve body (23), and the gas supports the rubber tympanic membrane (24) at a fixed position under a set pressure value;
when the valve opening mechanism (2) moves upwards, the movable iron core (10) is driven to move upwards to be attracted and contacted with the fixed iron core (4) through the valve opening clamping block (12), and the spring (11) is compressed.
7. An electromagnetic safety self-closing valve with emergency shut-off function according to any of claims 1 to 5, characterized in that the under-pressure shut-off valve comprises:
when the pressure of the internal gas of the valve body (23) is lower than a set value, the rubber tympanic membrane (24) can not be kept at an opening fixed position, and integrally moves downwards to drive the rubber flat gasket (27) to move to a gas channel stop opening of the valve body (23), so that the gas flow is blocked, and the valve is closed.
8. An electromagnetic safety self-closing valve with emergency cut-off function according to any of claims 1 to 5, characterized in that the overpressure closing valve comprises:
when the pressure of the gas in the valve body (23) is higher than a set value, the rubber drum membrane (24) can continuously move upwards. Due to the limitation of the fixed iron cover (25), the magnetic ring (29) is separated from the mandrel (15), and the magnetic ring (29) drives the sealing seat (26) and the rubber flat pad (27) to move downwards; the rubber flat pad (27) moves to a gas channel stop port of the valve body (23) to block the flow of gas and close the valve.
9. An electromagnetic safety self-closing valve with emergency cut-off function according to any of claims 1 to 5, characterized in that it comprises:
when the gas flow is abnormally overlarge, the internal element of the over-flow protector (28) blocks the gas flow, then the internal pressure of the valve body (23) is lower than a set value, the rubber drum membrane (24) cannot be kept at an opening fixed position, and the rubber drum membrane moves downwards integrally to drive the rubber flat gasket (27) to move to a gas channel stop opening of the valve body (23)), so that the gas flow is blocked, and the valve is closed.
10. An electromagnetic safety self-closing valve with an emergency shut-off function according to any of claims 1 to 5, characterized in that the emergency shut-off valve comprises:
an external electric pulse signal is received through an external cable (9) and is input to an electromagnetic coil (7) to generate electromagnetic force, the permanent magnetic force of the annular permanent magnet (5) is overcome, and the compression energy storage of a spring (11) is released; the spring (11) drives the movable iron core (10) to move downwards, the movable iron core (11) collides with the bottom protruding part of the valve opening pull rod (3), the core shaft (15) is driven to move downwards in a conduction mode, then the rubber tympanic membrane (24), the metal gasket (31) and the nut (32) are driven to move downwards, the magnetic ring adsorbed at the bottom of the core shaft (15) moves downwards, and the rubber flat gasket (27) is driven to seal a gas channel cut-off opening of the valve body (23).
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| CN202110934123.2A CN113483133A (en) | 2021-08-13 | 2021-08-13 | Electromagnetic type safety self-closing valve with emergency cut-off function |
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| CN202110934123.2A CN113483133A (en) | 2021-08-13 | 2021-08-13 | Electromagnetic type safety self-closing valve with emergency cut-off function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7495152B2 (en) | 2021-12-29 | 2024-06-04 | 大洋技研工業株式会社 | Fluid On-Off Valve |
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