CN214466518U - Low pressure gas quick cutting device - Google Patents
Low pressure gas quick cutting device Download PDFInfo
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- CN214466518U CN214466518U CN202120106235.4U CN202120106235U CN214466518U CN 214466518 U CN214466518 U CN 214466518U CN 202120106235 U CN202120106235 U CN 202120106235U CN 214466518 U CN214466518 U CN 214466518U
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Abstract
The utility model provides a low pressure gas quick cutting device is equipped with the casing, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, upward be equipped with nickel titanium alloy line in the wire guide, nickel titanium alloy line both ends are fixed, the valve rod lower part is equipped with armature, the armature top is equipped with magnet. The low-pressure gas cutting device solves the technical problems that an actuating mechanism of an existing low-pressure gas cutting device is high in cost, poor in corrosion resistance, incapable of guaranteeing service life and high in potential safety hazard. The utility model discloses but wide application is in the gas pipeline.
Description
Technical Field
The utility model relates to a gas safety control device especially relates to a quick cutting device of low pressure gas.
Background
The gas use users in China exceed 1.2 hundred million households, and in the practice of safety management of low-pressure gas, the demand of an actuating mechanism which is economical, safe, energy-saving and can quickly cut off gas supply is huge.
At present, an actuating mechanism of a low-pressure gas cutting device on the market is mainly driven by a motor or an electromagnet, so that the cost is high, the corrosion resistance is poor, the service life cannot be guaranteed, the problem of degradation of an explosion-proof function exists along with the aging of devices and circuits, and more potential safety hazards exist.
Disclosure of Invention
The utility model discloses there is with high costs, corrosion resistance is poor, life can't ensure, the many technical problem of potential safety hazard to current low pressure gas cutting device actuating mechanism, provides a simple structure, with low costs, and corrosion resistance is superstrong, life overlength, the reliable low pressure gas quick cutting device of security performance.
Therefore, the technical scheme of the utility model, a low pressure gas quick cutting device is equipped with the casing, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, upward be equipped with nickel-titanium alloy wire in the wire guide, nickel-titanium alloy wire both ends are fixed, the valve rod lower part is equipped with armature, the armature top is equipped with magnet.
Preferably, a valve seat is arranged at the lower part of the valve rod, and the armature is fixed on the valve seat.
Preferably, a lower wire hole is formed in the valve seat, a nickel-titanium alloy wire is arranged in the lower wire hole, and two ends of the nickel-titanium alloy wire in the upper wire hole and the lower wire hole are respectively fixed.
Preferably, the nickel-titanium alloy wire in the upper wire hole is a bidirectional nickel-titanium alloy wire, and the nickel-titanium alloy wire in the lower wire hole is a unidirectional nickel-titanium alloy wire.
The utility model provides a low pressure gas quick cutting device, is equipped with the casing, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, upward be equipped with the nickel titanium alloy line in the wire guide, nickel titanium alloy line both ends are fixed, the valve rod lower part is equipped with the spring.
Preferably, the valve rod is further provided with a lower wire hole, a nickel-titanium alloy wire is also arranged in the lower wire hole, and two ends of the nickel-titanium alloy wire are fixed.
The utility model provides a low pressure gas quick cutting device, is equipped with the casing, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with wire guide and lower wire guide on the valve rod, it all is equipped with the nitinol line in wire guide and the lower wire guide to go up, nitinol line both ends are fixed.
Preferably, the nickel titanium alloy wires in the upper wire hole and the lower wire hole are all one-way nickel titanium alloy wires.
Preferably, the nickel-titanium alloy wire in the upper wire hole is a bidirectional nickel-titanium alloy wire, and the nickel-titanium alloy wire in the lower wire hole is a bidirectional nickel-titanium alloy wire or a unidirectional nickel-titanium alloy wire.
The utility model provides a low pressure gas quick cutting device, is equipped with the casing, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, upward be equipped with two-way nickel titanium alloy line in the wire guide, two-way nickel titanium alloy line both ends are fixed.
The utility model has the advantages that,
(1) the nickel-titanium alloy wire has superelasticity and memory functions, so that the internal crystal phase of the material can be changed from martensite to austenite at a specific design temperature, about 10% of reversible variable can be brought to the maximum, and the valve rod can be driven to move up and down by using the nickel-titanium alloy wire as a driving device, so that the opening and closing of the valve are realized;
(2) because the valve rod is provided with the magnet and the armature, when the valve rod moves upwards, the magnet and the armature are attracted, so that the valve is more reliably closed, and the safety performance is higher;
(3) because the spring is arranged at the lower part of the valve rod, when the valve rod moves downwards under the action of the nickel-titanium alloy wire, the valve is opened, the spring is compressed, and when the length of the nickel-titanium alloy wire is recovered, the valve is closed under the action of the spring force, so that the valve is safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 3 of the present invention;
fig. 4 is a schematic structural diagram of embodiment 4 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 5 of the present invention;
fig. 6 is a schematic structural diagram of embodiment 6 of the present invention.
The symbols in the drawings illustrate that:
1. a housing; 101. fixing a column; 102. fixing a column; 103. a winding post; 104. a winding post; 105. a winding post; 106. fixing a column; 107. a winding post; 108. a winding post; 2. a linker; 3. a drive mechanism; 301. a one-way nickel-titanium memory alloy wire; 302. a one-way nickel-titanium memory alloy wire; 303. an adjusting seat; 304. a valve stem; 305. a magnet; 306. a valve flap; 307. an upper wire guide hole; 308. an armature; 309. a lower wire guide hole; 4. a valve port; 5. a bidirectional nitinol wire; 6. compressing the spring.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1, a low-pressure gas quick cut-off device, which comprises a housing 1, a connector 2, a driving mechanism 3, a valve port 4, and an electronic control device (not shown in the figure), wherein the housing 1 is provided with a fixing column and a winding column, the upper portion of the housing 1 is detachably provided with the connector 2, the driving mechanism 3 is arranged inside the housing 1, the driving mechanism 3 comprises a valve rod 304, a magnet 305, an armature 308 and a lower wire guide hole 309, the top of the valve rod 304 is provided with a valve flap 306, the middle portion of the valve rod 304 is provided with an upper wire guide hole 307, an unidirectional nickel titanium memory alloy wire 301 is arranged in the upper wire guide hole 307, the lower portion of the valve rod 304 is provided with a detachable adjusting seat 303, the armature 308 is arranged on the upper portion of the adjusting seat 303, the adjusting seat 303 is further provided with a lower wire guide hole 309, and the unidirectional nickel titanium memory alloy wire 302 is arranged in the lower wire guide hole 309. The two ends of the one-way nickel-titanium memory alloy wire 301 are respectively fixed on the fixing column 101 and the fixing column 106, the one-way nickel-titanium memory alloy wire 301 sequentially passes through the winding column 102, the winding column 103, the winding column 104, the upper wire guide hole 307 and the winding column 105 from the fixing column 101 and then is fixed on the fixing column 106, and when the valve is closed, the positions of the winding column 104 and the winding column 105 are lower than the position of the upper wire guide hole. The one-way nickel titanium memory alloy wire 301 contracts when being electrified, and the valve rod 304 is pulled down, so that the valve clack 306 is separated from the connecting body 2, and the valve port 4 is opened; one end of the single-way nickel-titanium memory alloy wire 302 is fixed on the fixing column 102, passes through the lower wire guide hole 309, passes through the wrapping column 108 and the wrapping column 107, and is fixed on the fixing column 102, and when the valve is opened, the heights of the wrapping column 107 and the fixing column 102 are higher than the height of the lower wire guide hole 309. When the one-way nickel titanium memory alloy wire 302 is electrified, the valve rod 304 is pulled up to a certain position to close the valve port 4, and meanwhile, the armature 308 is attracted with the magnet 305 to keep the valve port 4 closed.
Example 2
As shown in fig. 2, a low-pressure gas quick cut-off device comprises a housing 1, a connecting body 2, a driving mechanism 3, a valve port 4 and an electronic control device (not shown in the figure), wherein the driving mechanism 3 comprises a valve rod 304, a valve flap 306, a wire guide hole 307, the valve port 4 and a two-way nickel titanium memory alloy wire 6, the valve flap 306 is positioned at the upper end of the valve rod 304, the wire guide hole 307 is arranged on the valve rod 304, the two-way nickel titanium memory alloy wire 6 passes through the wire guide hole 307 of the valve rod 304, the two ends of the two-way nickel titanium memory alloy wire are fixed, and the two-way nickel titanium memory alloy wire contracts after being electrified, pulls the valve rod 304 and the valve flap 306 to move upwards to a certain position, closes the valve port 4, and meanwhile, a magnet 305 is attracted with an armature 308, so as to keep the closed state of the valve port 4; after the temperature is reduced to the set temperature, the two-way nickel titanium memory alloy wire 6 is restored to the original state, and the valve is opened.
Example 3
As shown in fig. 3, a low-pressure gas quick cut-off device comprises a housing 1, a connecting body 2, a driving mechanism 3, a valve port 4 and an electronic control device (not shown in the figure), wherein the driving mechanism 3 comprises a valve rod 304, a valve flap 306, a wire guide hole 307, a compression spring 7 and a bidirectional nickel titanium memory alloy wire 6, the valve flap 306 is positioned at the upper end of the valve rod 304, the compression spring 7 is positioned at the lower end of the valve rod 304, the wire guide hole 307 is arranged on the valve rod 304, the bidirectional nickel titanium memory alloy wire 6 passes through the wire guide hole 307 of the valve rod 304, the two ends are fixed, and the two ends are contracted after being electrified, the valve rod 304 is pulled to drive the valve flap 306 to move down to a certain position, and the valve port 4 is opened to conduct gas; after the temperature is reduced, the alloy wire can automatically return to the original length, the valve rod 304 and the valve clack 306 are pushed to the valve seat under the action of the elastic force of the compression spring 7, and the valve port 4 is kept in a closed state under the action of the elastic force of the compression spring 7.
Example 4
As shown in fig. 4, a low-pressure gas quick shut-off device, which is different from embodiment 3, is provided with a one-way nitinol wire 301 and a one-way nitinol wire 302 in a driving mechanism 3 instead of the two-way nitinol wire 6 in embodiment 2.
The one-way nickel-titanium memory alloy wire 301 penetrates through an upper wire hole 307 of the valve rod 304, two ends of the one-way nickel-titanium memory alloy wire are fixed and are electrified to contract, the valve rod 304 is pulled to drive the valve flap 306 to move downwards to a certain position, the valve port 4 is opened to conduct gas, the valve port 4 is kept in an open state, and at the moment, the nickel-titanium memory alloy wire 302 is in an overlong state; the one-way nickel-titanium memory alloy wire 302 passes through the wire hole 307 of the valve rod 304, the two ends are fixed, the valve rod 304 is pulled to drive the valve clack 306 to move up to a certain position by electrifying contraction, the valve port 4 is closed, the valve port 4 keeps a closed state under the elastic force of the compression spring 7, and at the moment, the nickel-titanium memory alloy wire 301 is in an overlong state.
Example 5
As shown in fig. 5, a low-pressure gas quick cut-off device comprises a housing 1, a connecting body 2, a driving mechanism 3, a valve port 4 and an electronic control device (not shown in the figure), wherein the driving mechanism 3 comprises a valve rod 304, a valve flap 306, an upper wire guide hole 307, a lower wire guide hole 309, a one-way nickel titanium memory alloy wire 301, a one-way nickel titanium memory alloy wire 302 and the valve port 4, the valve flap 306 is positioned at the upper end of the valve rod 304, the upper wire guide hole 307 and the lower wire guide hole 309 are arranged on the valve rod 304, the one-way nickel titanium memory alloy wire 301 passes through the wire guide hole 307 of the valve rod 304, the two ends are fixed, and the one-way nickel titanium memory alloy wire 301 contracts after being electrified, so that the valve rod 304 and the valve flap 306 are pulled to move down to a certain position, the valve port 4 is opened to conduct gas, the valve is kept in an open state, and the nickel titanium alloy wire 302 is in a super-elastic length state; the one-way nickel titanium memory alloy wire 302 passes through the lower wire hole 309 of the valve rod 304, the two ends are fixed, the one-way nickel titanium memory alloy wire contracts after being electrified, the valve rod 304 and the valve flap 306 are pulled to move upwards to a certain position, the valve port 4 is closed, the valve port 4 keeps a closed state, and at the moment, the nickel titanium alloy wire 301 is in a super elastic length state.
The one-way nickel titanium memory alloy wire 301 and the one-way nickel titanium memory alloy wire 302 in the upper wire hole 307 and the lower wire hole 309 can be replaced by a two-way nickel titanium memory alloy wire 6, one can be made of one-way nickel titanium memory alloy, and the other can be replaced by a two-way nickel titanium memory alloy wire, both can drive the valve rod to move up and down, and the valve is opened and closed.
Example 6
As shown in fig. 6, a low-pressure gas quick cut-off device comprises a housing 1, a connecting body 2, a driving mechanism 3, a valve port 4 and an electronic control device (not shown in the figure), wherein the driving mechanism 3 comprises a valve rod 304, a valve flap 306, an upper wire hole 307, the valve port 4 and a bidirectional nickel titanium memory alloy wire 6, the valve flap 306 is positioned at the upper end of the valve rod 304, the upper wire hole 307 is arranged on the valve rod 304, the bidirectional nickel titanium memory alloy wire 6 penetrates through the upper wire hole 307 of the valve rod 304, the two ends of the bidirectional nickel titanium memory alloy wire are fixed, and the bidirectional nickel titanium memory alloy wire contracts after being electrified to pull the valve rod 304 and the valve flap 306 to move up to a certain position to close the valve port 4; after the temperature is reduced to the set temperature, the two-way nickel titanium memory alloy wire 6 is restored to the original state, and the valve is opened.
The utility model discloses because the nickel titanium alloy line that adopts has superelasticity and memory function, under specific design temperature, the inside crystalline phase of material can be changed into the austenite by the martensite, can bring about 10% reversible variables at the utmost, makes drive device through adopting the nickel titanium alloy line, can drive the valve rod and reciprocate, and then realizes opening and closing of valve. The device can realize gas overpressure by adjusting and controlling the contraction stress of the nickel-titanium memory alloy wire, and the valve cannot be opened even if the device is electrified to contract, so that the device is safer and more reliable.
The device has the advantages of simple structure, low cost, super-strong corrosion resistance, super-long service life and reliable safety performance, and can be widely popularized and applied.
However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a low pressure gas quick cutting device, is equipped with the casing, its characterized in that, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, be equipped with nickel titanium alloy line in the wire guide, nickel titanium alloy line both ends are fixed, the valve rod lower part is equipped with armature, the armature top is equipped with magnet.
2. The low-pressure gas quick cut-off device as claimed in claim 1, wherein a valve seat is arranged at the lower part of the valve rod, and the armature is fixed on the valve seat.
3. The low-pressure gas quick cutting device according to claim 2, wherein a lower wire guide hole is formed in the valve seat, a nickel-titanium alloy wire is arranged in the lower wire guide hole, and two ends of the nickel-titanium alloy wire in the upper wire guide hole and the lower wire guide hole are respectively fixed.
4. The low-pressure gas quick cutting device according to claim 3, wherein the nitinol wire in the upper wire hole is a bidirectional nitinol wire, and the nitinol wire in the lower wire hole is a unidirectional nitinol wire.
5. The utility model provides a low pressure gas quick cutting device, is equipped with the casing, its characterized in that, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, be equipped with nickel titanium alloy wire in the wire guide, nickel titanium alloy wire both ends are fixed, the valve rod lower part is equipped with the spring.
6. The low-pressure gas quick cutting device is characterized in that a lower wire hole is formed in the valve rod, a nickel-titanium alloy wire is also arranged in the lower wire hole, and two ends of the nickel-titanium alloy wire are fixed.
7. The utility model provides a low pressure gas quick cutting device, is equipped with the casing, its characterized in that, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with wire guide and lower wire guide on the valve rod, go up the wire guide and all be equipped with the nickel titanium alloy wire in the wire guide down, nickel titanium alloy wire both ends are fixed.
8. The low pressure gas quick cut-off device according to claim 7, wherein the nitinol wires in the upper and lower wire holes are all unidirectional nitinol wires.
9. The low-pressure gas quick cutting device according to claim 7, wherein the nitinol wire in the upper wire hole is a bidirectional nitinol wire, and the nitinol wire in the lower wire hole is a bidirectional nitinol wire or a unidirectional nitinol wire.
10. The utility model provides a low pressure gas quick cutting device, is equipped with the casing, its characterized in that, the casing top is equipped with the connector, be equipped with actuating mechanism in the casing, actuating mechanism is equipped with the valve rod, the valve rod top is equipped with the valve clack, be equipped with the wire guide on the valve rod, be equipped with two-way nickel titanium alloy line in the wire guide, two-way nickel titanium alloy line both ends are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120106235.4U CN214466518U (en) | 2021-01-15 | 2021-01-15 | Low pressure gas quick cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120106235.4U CN214466518U (en) | 2021-01-15 | 2021-01-15 | Low pressure gas quick cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466518U true CN214466518U (en) | 2021-10-22 |
Family
ID=78111927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120106235.4U Active CN214466518U (en) | 2021-01-15 | 2021-01-15 | Low pressure gas quick cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466518U (en) |
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2021
- 2021-01-15 CN CN202120106235.4U patent/CN214466518U/en active Active
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