CN218913856U - High-pressure self-closing gas self-closing valve - Google Patents
High-pressure self-closing gas self-closing valve Download PDFInfo
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- CN218913856U CN218913856U CN202223205948.XU CN202223205948U CN218913856U CN 218913856 U CN218913856 U CN 218913856U CN 202223205948 U CN202223205948 U CN 202223205948U CN 218913856 U CN218913856 U CN 218913856U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses a high-pressure self-closing gas self-closing valve, which comprises a valve body, wherein an inlet pipeline and an outlet pipeline are arranged on the valve body, a valve port with an upward opening is arranged between the inlet pipeline and the outlet pipeline, a mounting groove is arranged at the upper part of the valve body, the mounting groove corresponds to the valve port, a seat body is arranged on the opening of the mounting groove, an elastic membrane is arranged between the seat body and the mounting groove, a lifting rod capable of moving up and down is arranged on the seat body, the end part of the lifting rod is connected to the elastic membrane, the valve further comprises a magnetic field gasket, and a screw rod penetrates through the magnetic field gasket and the elastic membrane to be connected with the lifting rod. The valve port is provided with a valve plug which moves up and down along the valve port, a sealing ring is arranged on the peripheral wall of the valve plug, the upper end of the valve plug is connected with a magnet which corresponds to the magnetic field gasket up and down, and a limiting mechanism is arranged between the valve plug and the valve port. The structure is convenient to take materials, simple to assemble, compact and reliable, so that the difficulty in machining and assembling is effectively reduced, and meanwhile, the structure can be automatically closed in a low-pressure or high-pressure state.
Description
Technical Field
The utility model relates to a self-closing valve for a gas pipeline, in particular to a high-pressure self-closing gas self-closing valve.
Background
The gas self-closing valve is arranged on a gas pipeline at a position in front of a kitchen range, has an automatic closing function when the gas pipeline is in a gas interruption state, and particularly has an automatic closing function in a high-pressure state, which is very critical, so that the safe use of gas is related.
The Chinese patent grant publication No. CN 211779235U high-sensitivity gas self-closing valve comprises a valve body, a vertical valve rod, a leather cup and a valve cover, wherein a valve cavity is arranged in the valve body, the valve cavity is provided with an upper opening, the upper opening is covered and sealed by the leather cup, the valve cover is positioned above the leather cup to fix the leather cup, one end of the valve body is provided with a gas outlet, the other end of the valve body is provided with a gas inlet, the gas inlet is communicated with the valve cavity through the valve hole, the vertical valve rod can be movably arranged in the valve cavity up and down, the vertical valve rod is fixedly connected with the leather cup, the upper end of the vertical valve rod is connected with magnetic steel, the magnetic steel is movably arranged in a guide sleeve at the top of the valve cover, the bottom of the guide sleeve is fixedly provided with an iron sheet, the part of the vertical valve rod positioned in the valve cavity is fixedly connected with a cone, the side of the cone is provided with a tip cone which is propped against the cone under the action of a spring, and the other end of the transverse valve rod passes through the valve hole to be connected with a plug; in the normal pressure air supply state, the tip of the cone is opposite to the cone top of the tip cone.
The working principle is as follows: under the normal pressure air supply state of the gas pipeline, the cone tip part on the vertical valve rod is just right opposite to the tip cone top on the horizontal valve rod, when the air supply pressure generates under-pressure or high-pressure change, the downward movement or upward movement of the vertical valve rod can lead the cone tip part and the tip cone top to be staggered up and down, so under the action of the tower-shaped spring, the tip cone moves leftwards, the horizontal valve rod drives the plug to move leftwards, the plug is enabled to close the valve hole along the air flow direction, the under-pressure and high-pressure automatic closing function of the gas self-closing valve is realized, and the plug is enabled to close the valve hole along the air flow direction, so that good sealing of the plug can be ensured no matter how under-pressure and high-pressure change.
In the structure, especially the structure that the cone tip part on the vertical valve rod is exactly opposite to the tip of the tip cone on the horizontal valve rod has larger precision requirement in the processing process and larger difficulty in the assembling process, once problems occur in the process of processing and assembly, the product is detected to be unqualified, and thus, much reworking and maintenance cost and time delay are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model aims to provide the high-pressure self-closing gas self-closing valve with compact and reliable structure, and simultaneously reduces the difficulty of processing and assembly.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high pressure self-closing gas self-closing valve, includes the valve body, be equipped with inlet channel and outlet channel on the valve body inlet channel with be equipped with the ascending valve port of opening between the outlet channel, valve body upper portion is equipped with the mounting groove, the mounting groove with the valve port is corresponding, install the pedestal on the opening of mounting groove, the pedestal with be provided with elastic diaphragm between the mounting groove be equipped with the lifting rod that can reciprocate on the pedestal, the end connection of lifting rod is on elastic diaphragm, still includes the magnetic field gasket, the screw rod of a screw pass magnetic field gasket and elastic diaphragm with the lifting rod is connected. The valve is characterized in that a valve plug which moves up and down along the valve port is arranged on the valve port, a sealing ring is arranged on the peripheral wall of the valve plug, the upper end of the valve plug is connected with a magnet which corresponds to the magnetic field gasket up and down, and a limiting mechanism is arranged between the valve plug and the valve port.
The limiting mechanism comprises a limiting frame body arranged above the valve port, a limiting gasket for the valve plug to pass through is arranged on the upper portion of the limiting frame body, a convex ring with the outer diameter larger than the hollow inner diameter of the limiting gasket is arranged on the lower portion of the valve plug, the sealing ring is arranged on the convex ring, and a guiding ventilation block is connected with the lower portion of the convex ring.
The inlet pipeline in still dispose overcurrent protection device, overcurrent protection device includes annular disk seat, valve block and gland, disk seat one end is equipped with the bottom surface of breathing in set up in the disk seat with annular valve port ring, the valve block is arranged in the disk seat back through the gland shutoff, the gland on be equipped with the air vent that corresponds with the valve block, be equipped with the guiding axle on the valve block, one side of guiding axle passes guiding hole on the gland, the opposite side of guiding axle alternates movably and arranges in guiding hole on the bottom surface still dispose the spring between valve block and the bottom surface.
The beneficial effects of the utility model are as follows: 1. when the low-pressure self-closing detection is carried out, an air source enters the valve body from the air inlet pipeline, a magnetic field gasket on the elastic diaphragm is adsorbed by a magnet on the valve plug under normal air pressure, and meanwhile, the elastic diaphragm can be lifted by the normal air pressure to drive the valve plug to move upwards to open the valve port, and then the elastic diaphragm moves downwards under the influence of the gravity of the valve plug after the air pressure is insufficient, so that the valve plug blocks the valve port; 2. when the high-pressure self-closing detection is carried out, the high pressure can lift the elastic diaphragm to move upwards continuously, and the magnetic field gasket and the valve plug are separated after the valve plug is lifted to a certain height due to the influence of the limiting mechanism, so that the valve plug moves downwards and blocks the valve port under the influence of gravity; the structure is convenient to take materials, simple to assemble, compact and reliable, and therefore difficulty in machining and assembling is effectively reduced.
The utility model is further described below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a block diagram of a specific embodiment of the present utility model;
fig. 2 is a partial exploded view of a spacing mechanism in accordance with an embodiment of the present utility model.
Detailed Description
The present utility model is described in detail below by way of examples only for further explanation of the present utility model and is not to be construed as limiting the scope of the present utility model.
As shown in fig. 1 and 2, this embodiment discloses a high-pressure self-closing gas self-closing valve, which comprises a valve body 1, wherein an inlet pipeline 11 and an outlet pipeline 12 are arranged on the valve body 1, an upward opening valve port 13 is arranged between the inlet pipeline 11 and the outlet pipeline 12, an installation groove is arranged at the upper part of the valve body 1, the installation groove corresponds to the valve port 13, a seat body 2 is arranged on the opening of the installation groove, an elastic membrane 3 is arranged between the seat body 2 and the installation groove, a lifting rod 4 capable of moving up and down is arranged on the seat body 2, the end part of the lifting rod 4 is connected to the elastic membrane 3, and the high-pressure self-closing gas self-closing valve further comprises a magnetic field gasket 5, and a screw passes through the magnetic field gasket 5 and the elastic membrane 3 to be connected with the lifting rod 4. The valve port 13 is provided with a valve plug 6 which moves up and down along the valve plug, a sealing ring is arranged on the peripheral wall of the valve plug, the upper end of the valve plug is connected with a magnet 7 which corresponds to the magnetic field gasket 5 up and down, a limiting mechanism 8 is arranged between the valve plug and the valve port 13, and the limiting mechanism 8 effectively controls the lifting stroke of the valve plug 6.
The limiting mechanism 8 comprises a limiting frame body 81 arranged above the valve port 13, a limiting gasket 82 for a valve plug to pass through is arranged on the upper portion of the limiting frame body 81, a convex ring 83 with the outer diameter larger than the inner diameter of the hollow space of the limiting gasket 82 is arranged on the lower portion of the valve plug, a sealing ring is arranged on the convex ring 83, a guiding ventilation block 84 is connected below the convex ring 83, ventilation grooves are formed in the peripheral wall of the guiding ventilation block 84, lifting guiding of the valve plug can be guaranteed through the guiding ventilation block 84, and meanwhile a certain weight is added to ensure that the valve plug and the magnetic field gasket 5 accurately fall onto the valve port 13 to seal the valve port 13 after being separated. The valve plug can be lifted in a certain range through the limiting mechanism 8, and the separation of the valve plug and the magnetic field gasket 5 can be smoothly ensured when the elastic membrane is lifted under high pressure.
The inlet pipeline 11 is internally provided with an overcurrent protection device 9, the overcurrent protection device 9 comprises an annular valve seat 91, a valve plate 92 and a gland 93, one end of the valve seat 91 is provided with a ventilated bottom surface, the valve seat 91 is internally provided with a valve port ring 94 which is annular, the valve plate 92 is plugged by the gland 93 after being arranged in the valve seat 91, the gland 93 is provided with a vent hole corresponding to the valve plate 92, the valve plate 92 is provided with a guide shaft, one side of the guide shaft penetrates through a guide hole on the gland 93, the other side of the guide shaft penetrates through a guide hole which is movably arranged on the bottom surface, and a spring 95 is further arranged between the valve plate 92 and the bottom surface. After ventilation, the combustible gas can pass through the end face of the valve plate, so that the valve plate can move along the axis of the guide shaft and is attached to the valve port ring 94 to cut off the gas source, thereby effectively playing the role of overcurrent protection and greatly reducing the gas leakage risk.
By adopting the technical scheme, 1, during low-pressure self-closing detection, an air source enters the valve body 1 from an air inlet pipeline, and under normal air pressure, a magnetic field gasket 5 on the elastic diaphragm 3 is adsorbed by a magnet 7 on the valve plug, and meanwhile, the normal air pressure lifts the elastic diaphragm 3 to enable the magnetic field gasket 5 to drive the valve plug to move upwards to open the valve port 13, and then, after the air pressure is insufficient, the elastic diaphragm 3 moves downwards under the influence of the gravity of the valve plug, so that the valve plug plugs the valve port 13; 2. during high-pressure self-closing detection, the elastic diaphragm 3 is lifted by high pressure to move upwards continuously, and the magnetic field gasket 5 and the valve plug are separated after the valve plug is lifted to a certain height under the influence of the limiting mechanism 8, so that the valve plug moves downwards under the influence of gravity and blocks the valve port 13; the structure is convenient to take materials, simple to assemble, compact and reliable, and therefore difficulty in machining and assembling is effectively reduced.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (3)
1. The utility model provides a high pressure self-closing gas self-closing valve, includes the valve body, be equipped with inlet channel and outlet channel on the valve body inlet channel with be equipped with the ascending valve port of opening between the outlet channel, its characterized in that: the valve is characterized in that an installation groove is formed in the upper portion of the valve body, the installation groove corresponds to the valve port, a seat body is installed on an opening of the installation groove, an elastic membrane is arranged between the seat body and the installation groove, a lifting rod capable of moving up and down is arranged on the seat body, the end portion of the lifting rod is connected to the elastic membrane, the valve further comprises a magnetic field gasket, a screw rod of a screw penetrates through the magnetic field gasket and the elastic membrane to be connected with the lifting rod, a valve plug moving up and down along the valve port is arranged on the valve port, a sealing ring is arranged on the peripheral wall of the valve plug, the upper end of the valve plug is connected with a magnet corresponding to the magnetic field gasket up and down, and a limiting mechanism is arranged between the valve plug and the valve port.
2. The high pressure self-closing gas self-closing valve as recited in claim 1, wherein: the limiting mechanism comprises a limiting frame body arranged above the valve port, a limiting gasket for the valve plug to pass through is arranged on the upper portion of the limiting frame body, a convex ring with the outer diameter larger than the hollow inner diameter of the limiting gasket is arranged on the lower portion of the valve plug, the sealing ring is arranged on the convex ring, and a guiding ventilation block is connected with the lower portion of the convex ring.
3. The high pressure self-closing gas self-closing valve as recited in claim 1, wherein: the inlet pipeline in still dispose overcurrent protection device, overcurrent protection device includes annular disk seat, valve block and gland, disk seat one end is equipped with the bottom surface of breathing in set up in the disk seat with annular valve port ring, the valve block is arranged in the disk seat back through the gland shutoff, the gland on be equipped with the air vent that corresponds with the valve block, be equipped with the guiding axle on the valve block, one side of guiding axle passes guiding hole on the gland, the opposite side of guiding axle alternates movably and arranges in guiding hole on the bottom surface still dispose the spring between valve block and the bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223205948.XU CN218913856U (en) | 2022-12-01 | 2022-12-01 | High-pressure self-closing gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223205948.XU CN218913856U (en) | 2022-12-01 | 2022-12-01 | High-pressure self-closing gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913856U true CN218913856U (en) | 2023-04-25 |
Family
ID=86046882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223205948.XU Active CN218913856U (en) | 2022-12-01 | 2022-12-01 | High-pressure self-closing gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913856U (en) |
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2022
- 2022-12-01 CN CN202223205948.XU patent/CN218913856U/en active Active
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