CN112145762A - Self-closing valve with high fault recognition - Google Patents
Self-closing valve with high fault recognition Download PDFInfo
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- CN112145762A CN112145762A CN202011056786.0A CN202011056786A CN112145762A CN 112145762 A CN112145762 A CN 112145762A CN 202011056786 A CN202011056786 A CN 202011056786A CN 112145762 A CN112145762 A CN 112145762A
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- valve
- self
- pull rod
- closing valve
- marker
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
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- 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
- F16K5/08—Details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention belongs to the technical field of gas valves, and particularly discloses a fault high-recognition self-closing valve which comprises a valve body and a cover body detachably mounted on the valve body, wherein a cavity is arranged between the valve body and the cover body, an air inlet pipe and an air outlet pipe are respectively arranged at two sides of the valve body, a diaphragm is hermetically fixed in the cavity, and a valve component capable of controlling the opening or closing of the air inlet pipe is arranged in the cavity, and the fault high-recognition self-closing valve is characterized in that: the top of the cover body is provided with a bulge, and the outer wall of the bulge is provided with a first marker; the vertical sliding connection in protruding top has the pull rod, and pull rod bottom fixed connection is in the diaphragm, and pull rod top fixedly connected with can cover the bellied button of carrying, and the pull rod lateral wall is equipped with the second marker. The invention aims to provide a self-closing valve with high fault recognition degree, which solves the problem that the self-closing valve is difficult to monitor and recognize faults.
Description
Technical Field
The invention belongs to the technical field of gas valves, and particularly discloses a fault high-recognition self-closing valve.
Background
In actual life, a plurality of gas valves are provided, the structure is complex, the installation is difficult, the cost is high, the response speed is slow, the closing effect is poor, the reliability is poor, and potential safety hazards are easily caused.
In view of the above potential safety hazards in the use process of gas, it is usually necessary to install a safety valve, i.e. a self-closing valve, having the function of automatically cutting off the gas pipeline. The self-closing valve is installed on a gas system pipeline, and when the gas supply pressure of the pipeline is under-pressure, overpressure and abnormal flow, the self-closing valve can be automatically closed to ensure the safe use of gas without electricity or other external power. For example, the Chinese invention patent discloses a novel gas pipeline self-closing valve (publication number: CN110274064A), which comprises a valve body and a valve cover, wherein a valve cavity is arranged between the valve body and the valve cover; the gas pipeline self-closing valve is characterized in that a diaphragm is arranged in the valve cavity and divides the valve cavity into an upper cavity and a lower cavity which are not communicated with each other, an air inlet cavity and an air outlet cavity are arranged on two sides of the valve body respectively, a valve rod assembly is arranged in the upper cavity, a flow adjusting device is arranged in the lower cavity, the bottom end of the valve rod assembly extends into the lower cavity and is matched and connected with the flow adjusting device, the flow adjusting device comprises a floating sealing bolt, an adjusting screw disc and an adjusting base ring, the adjusting base ring is arranged at the position of the inner cavity of the air inlet cavity and is provided with flow adjusting holes, the bottom end of the floating sealing bolt is abutted to the inner cavity opening of the air inlet cavity, the technical scheme can correspondingly adjust gas flow according to the configuration required by a user, and can.
Although the above scheme can be closed according to the internal condition of the self-closing valve, an operator cannot directly judge the reason for closing the self-closing valve, which brings obvious inconvenience for subsequent gas maintenance or troubleshooting.
Disclosure of Invention
The invention aims to provide a self-closing valve with high fault recognition degree, which solves the problem that the self-closing valve is difficult to monitor and recognize faults.
In order to achieve the purpose, the basic scheme of the invention is as follows: trouble high recognition degree formula self-closing valve, including valve body and demountable installation the lid on the valve body, be equipped with the cavity between valve body and the lid, the both sides branch of valve body is equipped with intake pipe and outlet duct, and the cavity internal seal is fixed with the diaphragm, is equipped with the valve member that can control the intake pipe to open or close in the cavity, its characterized in that: the top of the cover body is provided with a bulge, and the outer wall of the bulge is provided with a first marker; the vertical sliding connection in protruding top has the pull rod, and pull rod bottom fixed connection is in the diaphragm, and pull rod top fixedly connected with can cover the bellied button of carrying, and the pull rod lateral wall is equipped with the second marker.
The working principle and the beneficial effects of the basic scheme are as follows: the technical scheme utilizes the valve component to realize the opening or closing of the air inlet pipe. The valve component can realize automatic closing and prompting of the air inlet pipe under the special conditions of underpressure, overflow and overpressure in the self-closing valve.
When the condition of under-voltage or overflowing appears, the pull rod moves downwards along with the valve component, the air inlet pipe is closed by the valve component, meanwhile, the lifting button at the top end of the pull rod can be covered on the protrusion, and the technical effect that the lifting button shields the first marker is finally achieved.
When gas overpressure occurs, the valve component and the pull rod are separated, the separated valve component seals and closes the air inlet pipe under the action of gravity, meanwhile, the pull rod moves upwards under the action of overpressure thrust until the second marker on the side wall of the pull rod is exposed above the protrusion, and therefore the exposed second marker reminds an operator of the occurrence of overpressure inside the self-closing valve.
Compared with the prior art, the technical scheme has the advantages that the markers at two different positions are adopted to realize the signal prompting effect on the operator, each marker represents a different fault state, the reason for closing the self-closing valve can be simply, conveniently and intuitively known by the operator in the shortest time, and the use safety and convenience of the self-closing valve are effectively improved.
Further, pull rod bottom fixedly connected with permanent magnet, the valve member includes the magnet seat, magnet seat top fixed connection with permanent magnet adsorbs complex sheetmetal, magnet seat bottom fixedly connected with can be closed the valve mouth pad of intake pipe.
Has the advantages that: this technical scheme is through the adsorption fit who adopts permanent magnet and sheetmetal to the realization is connected dismantling of magnet seat. When the air pressure in the cavity inside the self-closing valve changes, the permanent magnet and the metal sheet are separated under the action of pressure, the separated magnet seat falls into the outlet of the air inlet pipe under the action of gravity, and the valve port pad at the bottom of the magnet seat realizes sealing and plugging of the air inlet pipe.
Further, the magnet base is coaxially and fixedly connected with a tray, the outer edge of the tray is fixedly connected between the valve body and the cover body in a sealing mode, and a plurality of through holes are formed in the surface of the tray.
Has the advantages that: according to the technical scheme, the tray and the through holes are additionally arranged, so that the permanent magnet and the metal sheet can be smoothly separated when the air pressure in the inner cavity of the self-closing valve is changed.
Furthermore, an annular groove is formed in the outer wall of the pull rod, and the second marker is fixed to the inner wall of the annular groove.
Has the advantages that: this technical scheme is through the mode of burying the second marker in the recess to realize that the annular groove plays the effect of protection to the second marker under the prerequisite that does not influence normal use, effectively prolong the life of structure.
Further, the second marker is a red paint.
Has the advantages that: this technical scheme is through adopting red painting in order to regard as the warning colour of second marker, and red as comparatively striking warning colour, when the second marker exposes, operating personnel can be fast and audio-visual judgement self-closing valve inside the state that the gas superpressure appears.
Further, the first marker is a green paint.
Has the advantages that: this technical scheme is through adopting green painting in order to regard as the warning colour of first marker, and green colour as comparatively gentle makes operating personnel see first marker and exposes, can learn the signal of the gas in the self-closing valve in normal circulation.
Further, the protrusion is of a cylindrical structure.
Has the advantages that: this technical scheme is through the arch that adopts the cylinder to ensure to carry the button and can just freely close or expose the protruding lid smoothly, improve both structure complex fluency.
Further, the air outlet pipe is coaxially and fixedly connected with a ball valve used for controlling the opening or closing of the air outlet pipe.
Has the advantages that: this technical scheme is through addding the ball valve to the effect that the realization played control to the inside gas that flows of gas valve and opened or close.
Furthermore, a gasket is coaxially arranged at the top of the diaphragm and is abutted against the top surface of the diaphragm.
Has the advantages that: this technical scheme is through the top fixed gasket at the diaphragm to ensure that excessive deformation can not appear in the in-process of diaphragm motion, the gasket plays the effect to diaphragm surface protection, prolongs the life of diaphragm.
Furthermore, the gasket is coaxially sleeved at the pull rod, the pull rod is in threaded connection with a nut above the gasket, and the bottom of the nut abuts against the top of the gasket.
Has the advantages that: this technical scheme is through adopting the fixed connection between the mode of nut fastening in order to realize gasket and pull rod.
Drawings
FIG. 1 is a schematic structural diagram of a self-closing valve with high fault recognition rate according to an embodiment of the present invention in a normal use state;
FIG. 2 is a front cross-sectional view of the self-closing valve with high fault recognition rate in normal use status according to the embodiment of the invention;
FIG. 3 is a front cross-sectional view of the fault high-recognition self-closing valve in an under-voltage or over-current state according to the embodiment of the invention;
FIG. 4 is a front cross-sectional view of the self-closing valve with high fault recognition rate in an overpressure condition according to the embodiment of the invention.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the valve comprises a valve body 1, an air inlet pipe 2, an air outlet pipe 3, a cover body 4, a protrusion 5, a pull rod 6, a lifting button 7, a diaphragm 8, a tray 9, a vent hole 10, a magnet seat 11, a permanent magnet 12, a valve port pad 13, a ball valve 14, a gasket 15, a nut 16, a first marker 17, a second marker 18, a filter 19, a shell 20, a cavity 21, a compression spring 22 and a baffle 23.
The embodiment is basically as shown in the attached figures 1 and 2: the high-fault-recognition-degree self-closing valve comprises a valve body 1, wherein an air inlet pipe 2 is integrally formed on the left side of the valve body 1, and an air outlet pipe 3 is integrally formed on the right side of the valve body 1. The left end of the air inlet pipe 2 and the right end of the air outlet pipe 3 are respectively provided with an internal thread. The center of the valve body 1 is provided with a chamber, the right end of the air inlet pipe 2 is communicated with the inside of the chamber, and an air outlet at the right end of the air inlet pipe 2 is positioned in the center of the chamber and vertically upwards. The outlet pipe 3 is also fixedly connected with a ball valve 14 through coaxial threads, and the ball valve 14 controls the opening and closing of the outlet pipe 3. The air inlet pipe 2 is coaxially and fixedly connected with a filter 19, the filter 19 comprises a shell 20, and the shell 20 is fixed on the inner wall of the air inlet pipe 2 in a sealing threaded mode. The shell 20 is internally provided with a cavity 21, the left end and the right end of the cavity 21 are communicated with the outside, a baffle plate 23 is connected in the cavity 21 in a sliding manner along the axial direction, the right end of the baffle plate 23 is coaxially and integrally formed with a connecting rod, and the connecting rod is horizontally connected in a through hole at the right end of the shell 20 in a sliding manner. A compression spring 22 is fixedly connected between the right side wall of the baffle plate 23 and the inner wall of the cavity 21.
The top of the valve body 1 is sealed and covered with a cover body 4, the right center of the top of the cover body 4 is provided with a cylindrical bulge 5, and the outer wall of the bulge 5 is filled with a first green painted marker 17. A guide hole is formed in the center of the top of the protrusion 5, a pull rod 6 is connected in the guide hole in a sliding mode, the bottom end of the pull rod 6 is located in a cavity of the valve body 1, and a metal iron sheet is fixed to the bottom end of the pull rod 6 in a welding mode. The top end of the pull rod 6 is coaxially and fixedly connected with a lifting button 7, and the lifting button 7 can cover and slide on the bulge 5 of the cover body 4. The pull rod 6 is coaxially in threaded connection with a diaphragm 8 made of flexible rubber, and the center of the diaphragm 8 protrudes upwards to form an annular bulge 5. The outer edge of the diaphragm 8 is fixed at the joint of the valve body 1 and the cover body 4 in a sealing way, and the bottom end of the pull rod 6 extends below the diaphragm 8. The top of the diaphragm 8 is coaxially provided with a gasket 15, the gasket 15 is coaxially sleeved at the pull rod 6, the pull rod 6 is in threaded connection with a nut 16 above the gasket 15, and the bottom of the nut 16 is abutted against the top of the gasket 15. The outer wall of the pull rod 6 is provided with an annular groove, and the groove is filled with a second marker 18 which is painted with red paint.
A tray 9 made of aluminum alloy is arranged below the diaphragm 8, and the center of the tray 9 is sunken towards the right lower side. The outer edge of the tray 9 is fixedly connected with the joint of the valve body 1 and the cover body 4 in a sealing way, and a plurality of vent holes 10 are uniformly formed on the top surface of the sunken part of the tray 9. The center of the tray 9 is connected with a magnet seat 11 with a cylindrical structure in an axial sliding manner, and the top of the magnet seat 11 is fixedly connected with a permanent magnet 12 with a disc structure and connected with the bottom of the pull rod 6. The bottom of the magnet seat 11 is fixedly connected with a valve gasket 13 through threads.
The specific implementation process is as follows: firstly, in the normal ventilation state of the self-closing valve, as shown in fig. 2, the iron sheet at the bottom of the pull rod 6 is fixed on the permanent magnet 12 of the magnet seat 11 in an adsorption manner, and the valve port pad 13 at the bottom of the magnet seat 11 in this state is in a suspended state. The lifting knob 7 is positioned right above the protrusion 5 by the support of the pull rod 6, and in this state, the first marker 17 of the outer wall of the protrusion 5 is exposed to the outside. The gas firstly enters the cavity of the self-closing valve through the filter 19 from the gas inlet pipe 2 and then enters the gas outlet pipe 3 to be discharged after passing through the through hole of the tray 9.
As shown in fig. 3, when an under-pressure state or an over-flow state occurs in the self-closing valve, the air pressure in the inner chamber of the self-closing valve changes, and in the process of air pressure change, the chamber below the diaphragm 8 changes, and in the process of air pressure change, the magnet seat 11 and the pull rod 6 are pulled downwards and vertically move downwards until the outlet at the right end of the air inlet pipe 2 is plugged by the valve opening pad 13 on the magnet seat 11. In the closed state, the lifting button 7 on the top of the pull rod 6 also covers the projection 5 and rests on the top surface of the cover 4, and the first green-painted marker 17 is covered by the lifting button 7. When the green marker is covered, the gas under-pressure or over-flow condition inside the self-closing valve is reminded to the operator.
When overpressure occurs in the self-closing valve, as shown in fig. 4, the gas with too high pressure impacts the diaphragm 8 inside the chamber until the tie rod 6 on the diaphragm 8 is separated from the magnet holder 11. The separated magnet seat 11 falls into the outlet at the right end of the air inlet pipe 2 under the action of gravity, and the outlet is blocked. At the same time, the diaphragm 8 is subjected to high pressure to move upwards until the top of the diaphragm 8 is pressed against the top wall of the chamber, in this state, the pull rod 6 moves upwards to enable the groove to extend out of the protrusion 5, and the red painted second marker 18 at the groove of the pull rod 6 is exposed to the air, so that an operator is reminded in a striking manner that gas overpressure occurs inside the self-closing valve.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the present invention.
Claims (10)
1. The high-fault-recognition-degree self-closing valve comprises a valve body and a cover body detachably mounted on the valve body, a cavity is arranged between the valve body and the cover body, an air inlet pipe and an air outlet pipe are arranged on two sides of the valve body respectively, a diaphragm is fixed in the cavity in a sealed mode, and a valve assembly capable of controlling the air inlet pipe to be opened or closed is arranged in the cavity and is characterized in that: a bulge is arranged at the top of the cover body, and a first marker is arranged on the outer wall of the bulge; the vertical sliding connection in protruding top has the pull rod, pull rod bottom fixed connection in the diaphragm, pull rod top fixed connection can cover the bellied button of carrying, the pull rod lateral wall is equipped with the second marker.
2. The self-closing valve with high fault recognition according to claim 1, characterized in that: the utility model discloses a valve, including pull rod, valve member, magnet seat top fixedly connected with permanent magnet, pull rod bottom fixedly connected with permanent magnet, the valve member includes the magnet seat, magnet seat top fixedly connected with the permanent magnet adsorbs complex sheetmetal, magnet seat bottom fixedly connected with can be closed the valve mouth pad of intake pipe.
3. The self-closing valve with high fault recognition according to claim 2, wherein: the magnet seat is coaxially and fixedly connected with a tray, the outer edge of the tray is fixedly connected between the valve body and the cover body in a sealing mode, and a plurality of through holes are formed in the surface of the tray.
4. The self-closing valve with high fault recognition according to claim 1, characterized in that: an annular groove is formed in the outer wall of the pull rod, and the second marker is fixed to the inner wall of the annular groove.
5. The self-closing valve with high fault recognition according to claim 4, wherein: the second marker is a red paint.
6. The self-closing valve with high fault recognition according to claim 5, wherein: the first marker is a green paint.
7. The self-closing valve with high fault recognition according to claim 6, wherein: the bulges are of cylindrical structures.
8. The self-closing valve with high fault recognition according to claim 1, characterized in that: the air outlet pipe is coaxially and fixedly connected with a ball valve used for controlling the opening or closing of the air outlet pipe.
9. The self-closing valve with high fault recognition according to claim 1, characterized in that: the top of the diaphragm is coaxially provided with a gasket, and the gasket is abutted against the top surface of the diaphragm.
10. The self-closing valve with high fault recognition according to claim 9, wherein: the gasket is coaxially sleeved at the pull rod, the pull rod is in threaded connection with a nut above the gasket, and the bottom of the nut abuts against the top of the gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011056786.0A CN112145762A (en) | 2020-09-30 | 2020-09-30 | Self-closing valve with high fault recognition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011056786.0A CN112145762A (en) | 2020-09-30 | 2020-09-30 | Self-closing valve with high fault recognition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112145762A true CN112145762A (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011056786.0A Pending CN112145762A (en) | 2020-09-30 | 2020-09-30 | Self-closing valve with high fault recognition |
Country Status (1)
| Country | Link |
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| CN (1) | CN112145762A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775802A (en) * | 2021-07-30 | 2021-12-10 | 河北泽宏科技股份有限公司 | Straight-pull type pipeline gas self-closing valve |
-
2020
- 2020-09-30 CN CN202011056786.0A patent/CN112145762A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775802A (en) * | 2021-07-30 | 2021-12-10 | 河北泽宏科技股份有限公司 | Straight-pull type pipeline gas self-closing valve |
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Address after: 402460 No.1 Avenue, Guangfu Industrial Park, Rongchang District, Chongqing Applicant after: Chongqing ruilibi Gas Equipment Co.,Ltd. Address before: 400000 No.1 Avenue, Guangfu Industrial Park, Rongchang District, Chongqing Applicant before: CHONGQING RUILIBI GAS EQUIPMENT Co.,Ltd. |