CN217153155U - Overheating cut-off gas self-closing valve - Google Patents
Overheating cut-off gas self-closing valve Download PDFInfo
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- CN217153155U CN217153155U CN202122838715.2U CN202122838715U CN217153155U CN 217153155 U CN217153155 U CN 217153155U CN 202122838715 U CN202122838715 U CN 202122838715U CN 217153155 U CN217153155 U CN 217153155U
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- closing valve
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Abstract
The utility model provides an overheated gas self-closing valve that cuts off, include: the valve body, the upper cover and the overheating cut-off component are arranged on the valve body; the overheating cut-off component is positioned in the upper cover; the overheat shutdown assembly includes: cutting off the spring, the fusible alloy strip and the special-shaped spring plate; the pin holes on the two ears of the special-shaped spring plate and the pin holes of the upper cover are fixed through fusible alloy strips, and a cutting spring is arranged between the upper cover and the special-shaped spring plate; when the fusible alloy strip is melted, the spring plate moves away from the upper cover under the action of the cut-off spring so as to close the self-closing valve. The utility model discloses a fusible alloy strip is as the overheated source of cutting off, and its temperature sensing is sensitive, only needs to change fusible alloy strip alright continue to use after cutting off safely, need not to change the self-closing valve, provides safety for the user, reduces cost of life.
Description
Technical Field
The utility model relates to a gas self-closing valve technical field especially involves being an overheated gas self-closing valve that cuts off.
Background
At present, the self-closing valve for pipeline gas is mostly applied at home and abroad, but for fire disasters caused by indoor electric appliances, cooking utensils and other reasons, when the fire disasters reach the self-closing valve or a downstream rubber pipe of the self-closing valve and a rubber pipe joint, if the fire disasters leak or leak a small amount, serious explosion accidents can be caused.
In the prior art, patent No. CN202010661511.3 discloses an overtemperature cut-off pipeline gas self-closing valve, which has an overtemperature cut-off function, adopts memory alloy as an overtemperature protection cut-off source to realize overtemperature cut-off, but because the memory alloy deforms at high temperature and then can be separated from a fixed groove, after a spring pushes a top cover to be in an overpressure cut-off state, a user needs to discharge pressure at a cooker end, the operation is complex, and great inconvenience is brought to the user.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model discloses an overheated gas self-closing valve that cuts off, the self-closing valve of this application can be at the automatic gas self-closing valve that cuts off when indoor temperature is overheated, need not to change the self-closing valve once more after the self-closing valve is in the off-state, only need to change the fusible alloy strip and just can continue to use the self-closing valve.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the application provides an overheating cut-off gas self-closing valve which comprises a valve body 1, an upper cover 5 and an overheating cut-off assembly;
the overheat shutoff assembly includes: a cutting spring 8, a fusible alloy strip 11 and a special-shaped spring plate 12;
in a possible implementation manner, the overheating cut-off set is located in the upper cover 5, two ears of the special-shaped spring plate 12 penetrate through two long holes of the upper cover 5, the cut-off spring 8 is arranged between the upper cover 5 and the special-shaped spring plate 12, and the cut-off spring 8 is fixed at a groove of two symmetrical pin holes of the special-shaped spring plate 12; the middle of the special-shaped spring plate 12 is provided with a round flat-position hole, and two pin holes of the special-shaped spring plate 12, which are symmetrical to each other, are fixed with two pin holes of the upper cover 5 through the fusible alloy strip 11.
When the fusible alloy strip 11 is melted, the special-shaped spring plate 12 moves downwards under the action of the cut-off spring 8 to impact the membrane assembly, so that the membrane assembly moves downwards to impact the magnet slide block assembly, the main piston sealing gasket 3 is driven to be attached to a valve port, and the valve is closed.
In a possible implementation manner, the self-closing valve comprises a leather diaphragm assembly, the leather diaphragm assembly comprises a leather diaphragm 9 and a leather diaphragm pull rod 7, and the leather diaphragm pull rod 7 penetrates through the middle of the leather diaphragm 9 and is fixedly connected with the middle of the leather diaphragm 9.
In a possible implementation manner, the self-closing valve comprises a lifting button assembly 6, the lifting button assembly 6 is arranged outside the upper cover 5, and the lifting button assembly 6 is fixedly connected with a leather membrane pull rod 7.
In a possible realization, the cross section of the membrane tension rod 7 coincides with the central hole of the profiled spring plate 12, the membrane tension rod 7 passing through the profiled spring plate 12.
In one possible implementation, the self-closing valve comprises a piston main seal assembly comprising a main seal 3, a piston rod 4; the main sealing gasket 3 is fixedly connected with the piston rod 4.
In one possible implementation, the self-closing valve further comprises a magnet-slider assembly, the magnet-slider assembly comprising: a magnet 10, a fixed plate 14 and a slider 13; a round hole is formed in the center of the fixed plate 14, the magnet 10 is arranged on the top surface of the fixed plate 14, a sliding rod of the sliding block 13 penetrates through the round hole in the fixed plate 14, and the magnet 10 and the sliding block 13 are fixed through screws.
In a possible realization, the slide 13 is provided with a chute; the chute is connected with the piston rod 4 in a sliding way through the movable piece.
In a possible implementation, the self-closing valve further comprises an excess flow assembly 2, which is arranged at the air inlet of the valve body.
According to the overheating cut-off gas self-closing valve, when the self-closing valve is in a normal use state, the piston main sealing gasket 3 is not attached to a valve port, and a gas source can normally pass through the self-closing valve; when a fire disaster occurs indoors and the indoor temperature reaches the melting temperature of the fusible alloy strip 11, the fusible alloy strip 11 melts, the special-shaped spring plate 12 moves downwards under the action of the cut-off spring 8, impacts the leather membrane assembly, enables the leather membrane assembly to move downwards, impacts the magnet sliding block assembly, enables the sliding block 13 to move downwards, and simultaneously drives the piston rod 4 and the piston main sealing gasket 3 to move towards the right side, so that the piston rod and the piston main sealing gasket are attached to a valve port, an air source is cut off, and explosion accidents are avoided. The user can let the self-closing valve continue to use through changing fusible alloy strip 11, need not to change the self-closing valve.
The overheating cutoff gas self-closing valve is reasonable in structure, adopts the fusible alloy strip as an overheating cutoff source, is sensitive in temperature sensing, and can be continuously used only by replacing the fusible alloy strip after being safely cut off; in the prior art, the memory alloy is used as an overheating protection cut-off source, the memory alloy is expensive, and the cost of the product is high due to the fact that every kilogram of the memory alloy is hundreds of thousands of yuan, but the fusible alloy strip adopted by the self-closing valve is low in cost compared with the memory alloy, the self-closing valve does not need to be replaced again after the self-closing valve is cut off safely by the overheating cut-off assembly, the self-closing valve can be continuously used only by replacing the fusible alloy strip with low price, safety is provided for users, and the living cost is reduced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Figure 1 is a schematic view of the normal state of the gas self-closing valve for overheat cut-off provided by the utility model.
Fig. 2 is a schematic view of the normal state of the gas self-closing valve for overheat cutoff provided by the present invention.
Fig. 3 is a schematic diagram of an overheat cutoff state of the overheat cutoff gas self-closing valve provided by the utility model.
Figure 4 is the appearance structure chart of the abnormal-shaped spring plate of the gas self-closing valve for overheat cut-off provided by the utility model.
Figure 5 is the appearance structure chart of the upper cover of the overheating cut-off gas self-closing valve provided by the utility model.
In the figure: the valve comprises a valve body 1, a flow passing assembly 2, a main sealing gasket 3, a piston rod 4, an upper cover 5, a lifting button assembly 6, a leather membrane pull rod 7, a cutting spring 8, a leather membrane 9, a magnet 10, a fusible alloy strip 11, a special-shaped spring plate 12, a sliding block 13 and a fixing plate 14.
Detailed Description
The embodiment of the application provides an overheating cut-off gas self-closing valve, which can automatically cut off a gas valve when a fire disaster happens indoors, and can enable the self-closing valve after safe cut-off to be continuously used only by replacing an easily-fusible alloy strip with low price.
In the embodiment of the application, the overheating cut-off gas self-closing valve comprises: the valve body 1, the upper cover 5 and the overheating cut-off component;
in one example, the overheat cut-off assembly is located within the upper cover 5; the overheat cutoff module includes: a cutting spring 8, a fusible alloy strip 11 and a special-shaped spring plate 12;
the pin holes on the two ears of the special-shaped spring plate 12 and the pin holes of the upper cover 5 are fixed through the fusible alloy strips 11, and the cutting springs 8 are arranged between the upper cover 5 and the special-shaped spring plate 12;
when the fusible alloy strip 11 melts, the profiled spring plate 12 is moved away from the upper lid 5 by the cut-off spring 8, so that the self-closing valve is closed.
The valve body includes: the piston comprises a leather membrane component, a magnet sliding block component and a piston main sealing component;
in one example, the membrane assembly is located on one side of the special-shaped spring plate 12, which is far away from the upper cover 5, when the special-shaped spring plate 12 moves in a direction far away from the upper cover 5, the membrane assembly is pushed, the membrane assembly impacts the magnet slide block assembly, the piston main seal gasket 3 is driven to be attached to a valve port, and the valve is closed.
In one example, the leather diaphragm assembly comprises a leather diaphragm 9 and a leather diaphragm pull rod 7, wherein the leather diaphragm pull rod 7 penetrates through the middle of the leather diaphragm 9 and is fixedly connected with the middle of the leather diaphragm 9; the leather membrane pull rod 7 penetrates through the special-shaped spring plate 12.
In one example, the special-shaped spring plate 12 is provided with a round flat-position type hole in the middle; the cross section of the leather membrane pull rod 7 is consistent with the round flat-position hole of the special-shaped spring plate 12.
In one example, the self-closing valve comprises: the lifting button assembly 6 is arranged outside the upper cover 5, and the lifting button assembly 6 is connected with the leather membrane pull rod 7; the lifting knob assembly 6 is used for pulling the profiled spring plate 12 to move close to the upper cover 5.
In one example, the lifting button assembly 6 can be used to pull the shaped spring plate 12 to move closer to the upper cover 5, and after the pin hole of the upper cover 5 is aligned with the flat hole of the shaped spring plate 12, the fusible alloy strip 11 is replaced, and this operation can lock the overheating cut-off assembly and open the self-closing valve to allow the air source to normally circulate in the self-closing valve.
In one example, the piston primary seal assembly includes a primary seal 3, a piston rod 4; the main sealing gasket 3 is fixedly connected with the piston rod 4, and the valve port is closed when the main sealing gasket 3 moves to the valve port under the driving of the piston rod 4; the piston rod 4 is provided with a movable part.
In one example, the magnet slide assembly includes: a magnet 10, a fixed plate 14 and a slider 13; the sliding block 13 is connected with the piston rod 4 in a sliding manner;
a round hole is formed in the center of the fixed plate 14, the diameter of the round hole is larger than that of a sliding rod of the sliding block 13, and the sliding rod of the sliding block 13 penetrates through the round hole in the fixed plate 14;
the magnet 10 is disposed on the top surface of the fixing plate 14, and the magnet 10 and the slider 13 are fixed by screws.
In one example, the slide 13 is provided with a chute; the chute is slidably connected to the piston rod 4 via the movable portion.
In one example, the self-closing valve further comprises an excess flow assembly 2 disposed at the air inlet of the valve body.
In one example, both ear portions of the shaped spring plate 12 are passed through both long holes of the upper cover 5, and the cut-off spring 8 is fixed at a groove of a pin hole of the shaped spring plate 12.
According to the overheating cut-off gas self-closing valve, when the self-closing valve is in a normal use state, the piston main sealing gasket 3 is not attached to a valve port, and a gas source can normally pass through the self-closing valve; when a fire disaster occurs indoors and the indoor temperature reaches the melting temperature of the fusible alloy strip 11, the fusible alloy strip 11 melts, the special-shaped spring plate 12 moves downwards under the action of the cut-off spring 8, impacts the leather membrane assembly, enables the leather membrane assembly to move downwards, impacts the magnet sliding block assembly, enables the sliding block 13 to move downwards, and simultaneously drives the piston rod 4 and the piston main sealing gasket 3 to move towards the right side, so that the piston rod and the piston main sealing gasket are attached to a valve port, an air source is cut off, and explosion accidents are avoided. The user can enable the self-closing valve to continue to use by replacing the fusible alloy strip without replacing the self-closing valve.
The overheating cutoff gas self-closing valve is reasonable in structure, adopts the fusible alloy strip as an overheating cutoff source, is sensitive in temperature sensing, and can be continuously used only by replacing the fusible alloy strip after being safely cut off; in the prior art, the memory alloy is used as an overheating protection cut-off source, the memory alloy is expensive, and each kilogram of the memory alloy is hundreds to thousands of yuan different, so that the product cost is high.
Claims (10)
1. An overheating cut-off gas self-closing valve, characterized by comprising: the valve body, the upper cover and the overheating cut-off component are arranged on the valve body;
the overheating cut-off component is positioned in the upper cover; the overheat shutoff assembly includes: cutting off the spring, the fusible alloy strip and the special-shaped spring plate;
the pin holes on the two ears of the special-shaped spring plate and the pin holes of the upper cover are fixed through the fusible alloy strips, and the cutting springs are arranged between the upper cover and the special-shaped spring plate;
when the fusible alloy strip is melted, the special-shaped spring plate moves in the direction away from the upper cover under the action of the cut-off spring so as to close the self-closing valve.
2. An overheating gas shutoff self-closing valve according to claim 1, characterized in that it comprises: the piston comprises a leather membrane component, a magnet sliding block component and a piston main sealing component;
the diaphragm assembly is positioned on one side, far away from the upper cover, of the special-shaped spring plate, the diaphragm assembly is pushed when the special-shaped spring plate moves towards the direction far away from the upper cover, the diaphragm assembly impacts the magnet sliding block assembly, the main sealing gasket of the piston is driven to be attached to the valve port, and the valve is closed.
3. The self-closing valve capable of cutting off gas with overheat as claimed in claim 2, wherein the membrane assembly comprises a membrane and a membrane pull rod, and the membrane pull rod penetrates through and is fixedly connected with the middle part of the membrane; the leather membrane pull rod penetrates through the special-shaped spring plate.
4. An overheating gas cutting-off self-closing valve according to claim 3, wherein a round flat-position type hole is formed in the middle of the special-shaped spring plate; the cross section of the leather diaphragm pull rod is consistent with the round flat-position hole of the special-shaped spring plate.
5. An overheating gas shutoff self-closing valve according to claim 2, characterized in that it comprises: the lifting button assembly is arranged outside the upper cover and is connected with the leather membrane pull rod; the lifting button assembly is used for pulling the special-shaped spring plate to move towards the direction close to the upper cover.
6. An overheating gas shutoff self-closing valve according to claim 2 wherein said piston main seal assembly comprises a main seal, a piston rod; the main sealing gasket is fixedly connected with the piston rod, and the main sealing gasket closes the valve port when moving to the valve port under the driving of the piston rod.
7. An overheating gas shutoff self-closing valve according to claim 6 wherein said magnet slide assembly comprises: the magnet, the fixed plate and the sliding block; the sliding block is connected with the piston rod in a sliding manner;
a round hole is formed in the center of the fixed plate, the diameter of the round hole is larger than that of a sliding rod of the sliding block, and the sliding rod of the sliding block penetrates through the fixed plate through the round hole;
the magnet is arranged on the top surface of the fixing plate, and the magnet and the sliding block are fixed through screws.
8. An overheating gas shut-off self-closing valve according to claim 7, wherein said slider is provided with a chute; when the sliding block moves, the piston rod is driven to move; the piston rod moves under the limiting effect of the chute of the sliding block.
9. An overheat gas cut-off self-closing valve as claimed in claim 1, wherein the self-closing valve further comprises an overflow assembly, and the overflow assembly is arranged at the air inlet of the valve body.
10. An overheating shutoff gas self-closing valve according to claim 1, wherein two ear portions of the shaped spring plate penetrate through two long holes of the upper cover, and the shutoff spring is fixed at a groove of a pin hole of the shaped spring plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122838715.2U CN217153155U (en) | 2021-11-19 | 2021-11-19 | Overheating cut-off gas self-closing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122838715.2U CN217153155U (en) | 2021-11-19 | 2021-11-19 | Overheating cut-off gas self-closing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217153155U true CN217153155U (en) | 2022-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122838715.2U Active CN217153155U (en) | 2021-11-19 | 2021-11-19 | Overheating cut-off gas self-closing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217153155U (en) |
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2021
- 2021-11-19 CN CN202122838715.2U patent/CN217153155U/en active Active
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