CN108079476B - High-precision adjustable automatic trigger device and automatic fire extinguisher with same - Google Patents
High-precision adjustable automatic trigger device and automatic fire extinguisher with same Download PDFInfo
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- CN108079476B CN108079476B CN201810023809.4A CN201810023809A CN108079476B CN 108079476 B CN108079476 B CN 108079476B CN 201810023809 A CN201810023809 A CN 201810023809A CN 108079476 B CN108079476 B CN 108079476B
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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- Health & Medical Sciences (AREA)
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to a high-precision adjustable automatic trigger device, which comprises: the bottom and/or the top of the hollow shell are provided with a cover body which can be adjusted in a floating mode, or the middle of the bottom and/or the top of the hollow shell is provided with a floating adjusting part; the memory spring is arranged at the top of the inner cavity of the hollow shell and made of memory alloy, and the top end of the memory spring is connected with the inner wall of the top of the hollow shell; the movable block is arranged in the middle of the inner cavity of the hollow shell and positioned on one side of the bottom end of the memory spring, the top of the movable block is connected with the bottom end of the memory spring, and the bottom end or the side surface of the movable block is used as a trigger movable surface connected with a part to be triggered to move; the setting is connected with the movable block at the regulation compression spring of cavity casing inner chamber lower part, and the bottom of adjusting compression spring is connected with the bottom of cavity casing, adjusts compression spring's top. The invention also discloses an automatic fire extinguisher with the high-precision adjustable automatic trigger device.
Description
Technical Field
The invention relates to the field of motion triggering devices, in particular to a high-precision adjustable automatic triggering device and an automatic fire extinguisher with the same.
Background
The existing motion triggering device is generally active triggering, which requires a user to send a motion command to complete triggering. For example, environments such as power distribution rooms, computer rooms, storage rooms, electric vehicle power battery compartments, etc. require automatic fire extinguishing devices, which are generally associated with automatic triggering devices. Along with the popularization and promotion of electric automobiles, if the power battery compartment of each electric automobile can be configured with an automatic fire extinguishing device, the electric automobile can effectively extinguish fire after an accident happens, and the harm caused by a fire disaster is minimized, so that the electric automobile is equipped with an automatic fire extinguisher, which becomes the key for improving the safety of the electric automobile.
Disclosure of Invention
An object of the present invention is to provide a high-precision adjustable automatic trigger device, and another object of the present invention is to provide an automatic fire extinguisher having the same, in order to solve the above problems.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the utility model provides an adjustable type automatic triggering device of high accuracy which characterized in that includes:
the device comprises a hollow shell, a cover body and a control device, wherein the bottom and/or the top of the hollow shell is provided with a floating adjustable cover body, or the middle part of the bottom and/or the top of the hollow shell is provided with a floating adjusting part;
the memory spring is arranged at the top of the inner cavity of the hollow shell and is made of memory alloy, and the top end of the memory spring is connected with the top of the hollow shell;
the movable block is arranged in the middle of the inner cavity of the hollow shell and positioned on one side of the bottom end of the memory spring, the top of the movable block is connected with the bottom end of the memory spring, and the bottom end or the side surface of the movable block is used as a trigger movable surface connected with a part to be triggered to move;
the adjusting compression spring is arranged at the lower part of the inner cavity of the hollow shell, the bottom end of the adjusting compression spring is connected with the bottom of the hollow shell, and the top end of the adjusting compression spring is connected with the movable block;
when the memory spring exceeds the preset normal temperature range, the memory spring deforms to enable the stroke of the memory spring to be lengthened, and the movable block is driven to overcome the elastic force of the adjusting compression spring to move downwards, so that the movable block serves as a trigger source of other moving devices.
In a preferred embodiment of the present invention, the bottom of the hollow housing is provided with a floatable and adjustable cover, the cover is in threaded connection with the bottom edge of the hollow housing, and the bottom end of the adjustable compression spring is naturally in interference connection with the cover.
In a preferred embodiment of the invention, the top of the hollow shell is provided with a floatable and adjustable cover body, the cover body is connected with the top edge of the hollow shell through threads, and the top end of the memory spring is naturally connected with the cover body in an interference manner.
In a preferred embodiment of the invention, a floating adjusting part is arranged in the middle of the bottom of the hollow shell, the floating adjusting part is an adjusting bolt which is screwed through the middle of the bottom cover of the hollow shell, and the bottom end of the adjusting compression spring is naturally connected with the top end of the adjusting bolt in an interference manner.
In a preferred embodiment of the invention, a floating adjusting part is arranged in the middle of the top of the hollow shell, the floating adjusting part is an adjusting bolt which is screwed through the middle of the top cover of the hollow shell, and the top end of the memory spring is naturally connected with the bottom end of the adjusting bolt in an interference manner.
In a preferred embodiment of the present invention, the bottom outside of the hollow shell is further provided with a quick-connect structure.
In a preferred embodiment of the present invention, the quick-connect structure is a clip structure.
The utility model provides an automatic fire extinguisher who has any one of above-mentioned technical scheme adjustable type automatic triggering device of high accuracy, a serial communication port, including fire extinguisher body, the adjustable type automatic triggering device of high accuracy sets up one side of fire extinguisher body, the movable block extends with one the one end of the outer movable rod of cavity casing is connected, the other end of movable rod is the trigger end that corresponds with fire extinguisher body's trigger device, the bottom of movable block sets up to the motion direction inclined plane, fire extinguisher body's safety insurance round pin stretches into in the cavity casing with the motion direction inclined plane corresponds, works as the movable block is in the in-process of downstream under memory spring's the elastic force effect drives earlier safety insurance round pin takes out, then drives the trigger end of movable rod triggers fire extinguisher body work.
In a preferred embodiment of the present invention, the fire extinguisher body is a portable fire extinguisher, the outer end ring of the safety pin is located below the movement guide slope, and the trigger end of the movable rod corresponds to the pressing handle of the portable fire extinguisher.
In a preferred embodiment of the present invention, the fire extinguisher body is a puncture type fire extinguisher, the puncture type fire extinguisher contains a compressed high-pressure fire extinguishing medium therein, once an opening of the puncture type fire extinguisher is punctured, the fire extinguishing medium therein rapidly overflows to achieve a fire extinguishing effect, the other end of the movable rod is a trigger end corresponding to a film cover sheet of the puncture type fire extinguisher, the trigger end is provided with a conical top head, and the conical top head is provided with an axial hollow channel.
By adopting the technical scheme, the high-precision adjustable automatic triggering device can automatically trigger motion through temperature change, is suitable for an environment without monitoring, and can change the compression amount of the memory spring through the floatable and adjustable cover body or the floating adjusting component so as to change the stress on the memory spring, thereby achieving the purpose of changing the phase change temperature of the memory spring, improving the temperature induction precision of the memory spring and avoiding false triggering. The automatic fire extinguisher can automatically work according to the change of temperature, is suitable for environments such as a power distribution room, a computer room, a storage room, an automobile engine and the like, and is particularly suitable for the power battery compartment of the existing electric automobile.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the high-precision adjustable auto-triggering device of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the high-precision adjustable automatic triggering device of the present invention.
Fig. 3 is a schematic structural view of an embodiment of the automatic fire extinguisher according to the present invention.
Fig. 4 is a schematic structural view of another embodiment of the automatic fire extinguisher according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
Referring to fig. 1, a high-precision adjustable automatic triggering device includes a hollow housing 100, a bottom and/or a top of the hollow housing 100 is provided as a cover that can be adjusted in a floating manner, or a middle portion of the bottom and/or the top of the hollow housing 100 is provided with a floating adjustment component. The bottom of the hollow casing 100 in this embodiment is provided with a floating adjustable cover 110, specifically, the cover 110 is connected with the bottom edge of the hollow casing 100 through a thread 111, and the cover 110 can be rotated to make fine adjustment of ascending or descending of the cover 110. Inside the hollow case 100, a memory spring 200, a movable block 300, and an adjustment compression spring 300 are provided. Of course, in addition to the above, there may be at least the following three cases: in the first case, the top of the hollow casing 100 is provided with a floating and adjustable cover body, the cover body is connected with the top edge of the hollow casing through threads, and the top end of the memory spring 200 is naturally connected with the cover body in an abutting mode; in the second case (see fig. 2), a floating adjustment component 110a is disposed in the middle of the bottom of the hollow casing 100, the floating adjustment component is an adjustment bolt screwed through the middle of the bottom cover of the hollow casing, and the bottom end of the adjustment compression spring 300 is naturally connected with the top end of the adjustment bolt in an abutting manner; and in the third case, the middle part of the top of the hollow shell 100 is provided with a floating adjusting part, the floating adjusting part is an adjusting bolt which is screwed through the middle part of the top cover of the hollow shell, and the top end of the memory spring 200 is naturally connected with the bottom end of the adjusting bolt in an abutting mode. In either case, the stress of the memory spring 200 is made adjustable.
The memory spring 200 is disposed at the top of the inner cavity of the hollow casing 100 and is made of memory alloy, and the top end of the memory spring 200 is connected with the inner wall of the top of the hollow casing 100. The movable block 300 is arranged in the middle of the inner cavity of the hollow shell 100 and is located on one side of the bottom end of the memory spring 200, and the top of the movable block 300 is connected with the bottom end of the memory spring 200. The bottom end or the side surface of the movable block 300 serves as a trigger movable surface connected with a part to be triggered to move.
Adjust compression spring 300 and set up in hollow housing 100 inner chamber lower part, adjust compression spring 300's bottom and be connected with lid 110, adjust compression spring 300's top and movable block 300 and contradict naturally and be connected, and both can part, conveniently wait to trigger the part and insert.
In order to facilitate the mating with the counterpart, the bottom outside of the hollow casing 100 is provided with a slot 120 for the insertion of the part to be triggered into motion. The bottom outside of hollow shell 100 still is provided with quick connect structure 130, and quick connect structure 130 is the clamp structure, convenient and opponent's piece high-speed joint, does not change the original structure of opponent's piece.
The working process of the high-precision adjustable automatic triggering device is as follows:
when the memory spring 200 is in the preset normal temperature range, the memory spring 200 cannot deform, and the whole device is in a static state; when the memory spring 200 exceeds the preset normal temperature range, the memory spring 200 deforms to lengthen the stroke thereof, and drives the movable block 300 to move downwards against the elastic force of the adjusting compression spring 400, so that the movable block 300 serves as a trigger source of other movement devices. The invention can change and adjust the compression amount of the compression spring 400 through the floatable and adjustable cover body 110, further change the stress on the memory spring 200, achieve the purpose of changing the phase change temperature of the memory spring 200, improve the temperature induction precision of the memory spring 200 and avoid false triggering. For example, when the current memory spring 200 is at 150 ℃, the corresponding deformation can occur to drive the movable block 300 to overcome the elastic force of the adjusting compression spring 400 to move downwards, the motion trigger temperature needs to be changed to 155 ℃, at this time, the cover body 110 only needs to be slightly adjusted to rise, the adjusting compression spring 400 is further compressed, the stress on the memory spring 200 is increased, and then the phase transition temperature is increased, so that the purpose of changing the motion trigger temperature to 155 ℃ is achieved.
The high-precision adjustable automatic trigger device is matched with the fire extinguisher body to form a new automatic fire extinguisher. Referring to fig. 3, the high-precision adjustable automatic trigger device is used in conjunction with a fire extinguisher body (i.e. the opponent part is the fire extinguisher body), the fire extinguisher body in this embodiment is a portable fire extinguisher 500, the high-precision adjustable automatic trigger device is arranged at one side of the portable fire extinguisher 500, and specifically, the hoop structure of the hollow shell 100 is hooped on the neck 510 of the portable fire extinguisher 500. The movable block 300 is connected to one end 610 of a movable rod 600 extending out of the hollow housing 100, and the other end of the movable rod 600 is a trigger end 620 corresponding to the trigger press handle 520 of the fire extinguisher 500.
The bottom of the movable block 300 is provided with a movement guide slope 320, and the safety pin 530 of the portable fire extinguisher 500 extends into the hollow housing 100 corresponding to the movement guide slope 320, i.e., the outer end ring 531 of the safety pin 530 is located below the movement guide slope 320, and when the movable block 300 moves downward, the safety pin 530 is drawn out due to the movement guide slope 320.
When the portable fire extinguisher works, when the memory spring 200 is in a preset normal temperature range, the memory spring 200 cannot deform, the whole device is in a static state, and the portable fire extinguisher 500 does not work; when the memory spring 200 exceeds the preset normal temperature range, the memory spring 200 deforms to lengthen the stroke thereof, and drives the movable block 300 to move downward against the elastic force of the adjusting compression spring 400, so that the movable block 300 is used as the trigger source of the portable fire extinguisher 500, i.e., in the process that the movable block 300 moves downward under the elastic force of the memory spring 200, the safety pin 530 is firstly driven to be drawn out, and then the trigger end 620 of the movable rod 600 is driven to apply pressure to the trigger pressure handle 520 of the portable fire extinguisher 500, so that the portable fire extinguisher 500 works. When in use, the nozzle of the hand-held fire extinguisher 500 is only pre-aligned with the position to be extinguished, and when the temperature in the space exceeds the preset normal temperature range of the memory spring 200, the extinguishing effect can be achieved. For example, when the present embodiment is applied to a power battery compartment of an electric vehicle, the deformation temperature of the memory spring 200 is preferably 150 ℃.
Referring to fig. 4, the embodiment is substantially the same as the embodiment of fig. 2, except that the fire extinguisher body of the embodiment is a piercing fire extinguisher 500a, the piercing fire extinguisher 500a contains compressed high-pressure fire extinguishing medium, such as carbon dioxide, fire extinguishing foam, etc., once the opening of the piercing fire extinguisher 500a is pierced, the fire extinguishing medium inside the piercing fire extinguisher rapidly overflows to achieve the fire extinguishing effect. The high-precision adjustable automatic trigger device is disposed at one side of the piercing fire extinguisher 500a, and specifically, the hoop structure of the hollow housing 100 is hooped on the neck 510a of the piercing fire extinguisher 500 a. The movable block 300 is connected to one end 610 of a movable rod 600 extending out of the hollow housing 100, the other end of the movable rod 600 is a trigger end 620 corresponding to the film cover 520a of the puncture fire extinguisher 500a, and the trigger end 620 is provided with a conical top 621.
The bottom of the movable block 300 is provided with a movement guiding inclined plane 320, and the safety pin 530a of the piercing fire extinguisher 500a extends into the hollow housing 100 and corresponds to the movement guiding inclined plane 320, i.e. the outer end ring 531a of the safety pin 530a is located below the movement guiding inclined plane 320, when the movable block 300 moves downwards, the safety pin 530a is drawn out due to the action of the movement guiding inclined plane 320, so that the film cover sheet 520a directly faces the conical top 621, and the conical top 621 is provided with an axial hollow channel 622.
When the embodiment works, when the memory spring 200 is in a preset normal temperature range, the memory spring 200 cannot deform, the whole device is in a static state, and the puncture type fire extinguisher 500a does not work; when the memory spring 200 exceeds the preset normal temperature range, the memory spring 200 deforms to enable the stroke of the memory spring to be lengthened, the movable block 300 is driven to move downwards to overcome the elastic force of the adjusting compression spring 400, the movable block 300 is used as a trigger source of the puncture type fire extinguisher 500a, namely, in the process that the movable block 300 moves downwards under the elastic force of the memory spring 200, the safety pin 530a is firstly driven to be drawn out, then the conical top 621 of the trigger end 620 of the movable rod 600 is driven to puncture the thin film cover plate 520a of the puncture type fire extinguisher 500a, and after the opening of the puncture type fire extinguisher 500a is punctured, the fire extinguishing medium in the puncture type fire extinguisher can rapidly overflow from the hollow channel 622 to achieve the fire extinguishing effect. When in use, the puncture type fire extinguisher 500a is only needed to be placed near the position where fire is needed to extinguish, and the fire extinguishing effect can be achieved when the preset normal temperature range of the memory spring 200 in the space is reached. For example, when the present embodiment is applied to an engine compartment of an electric vehicle, the deformation temperature of the memory spring 200 is preferably 150 ℃.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an adjustable type automatic triggering device of high accuracy which characterized in that includes:
the device comprises a hollow shell, a cover body and a control device, wherein the bottom and/or the top of the hollow shell is provided with a floating adjustable cover body, or the middle part of the bottom and/or the top of the hollow shell is provided with a floating adjusting part;
the memory spring is arranged at the top of the inner cavity of the hollow shell and is made of memory alloy, and the top end of the memory spring is connected with the top of the hollow shell;
the movable block is arranged in the middle of the inner cavity of the hollow shell and positioned on one side of the bottom end of the memory spring, the top of the movable block is connected with the bottom end of the memory spring, and the bottom end or the side surface of the movable block is used as a trigger movable surface connected with a part to be triggered to move;
the adjusting compression spring is arranged at the lower part of the inner cavity of the hollow shell, the bottom end of the adjusting compression spring is connected with the bottom of the hollow shell, and the top end of the adjusting compression spring is connected with the movable block;
when the memory spring exceeds a preset normal temperature range, the memory spring deforms to lengthen the stroke of the memory spring, and the movable block is driven to downwards move by overcoming the elastic force of the adjusting compression spring, so that the movable block is used as a trigger source of other movement devices.
2. The high-precision adjustable automatic triggering device according to claim 1, wherein the bottom of the hollow housing is provided with a floatable and adjustable cover, the cover is in threaded connection with the bottom edge of the hollow housing, and the bottom end of the adjusting compression spring is in natural interference connection with the cover.
3. The high-precision adjustable automatic triggering device of claim 1, wherein the top of the hollow housing is provided with a floating adjustable cover, the cover is connected with the top edge of the hollow housing through a screw thread, and the top end of the memory spring is naturally connected with the cover in an abutting manner.
4. The high-precision adjustable automatic trigger device according to claim 1, wherein a floating adjusting component is arranged in the middle of the bottom of the hollow shell, the floating adjusting component is an adjusting bolt screwed through the middle of the bottom cover of the hollow shell, and the bottom end of the adjusting compression spring is naturally connected with the top end of the adjusting bolt in an interference manner.
5. The high-precision adjustable automatic trigger device according to claim 1, wherein a floating adjusting component is arranged in the middle of the top of the hollow shell, the floating adjusting component is an adjusting bolt screwed through the middle of the top cover of the hollow shell, and the top end of the memory spring is naturally connected with the bottom end of the adjusting bolt in an interference manner.
6. A high accuracy adjustable automatic trigger device according to any one of claims 1 to 5, characterized in that the bottom outside of the hollow shell is further provided with a quick connection structure.
7. The high precision adjustable automatic trigger device according to claim 6, wherein the quick connection structure is a clamp structure.
8. An automatic fire extinguisher with the high-precision adjustable automatic trigger device according to any one of claims 1 to 7, characterized by comprising a fire extinguisher body, wherein the high-precision adjustable automatic trigger device is arranged on one side of the fire extinguisher body, the movable block is connected with one end of a movable rod extending out of the hollow shell, the other end of the movable rod is a trigger end corresponding to the trigger device of the fire extinguisher body, the bottom of the movable block is provided with a motion guide inclined plane, a safety pin of the fire extinguisher body extends into the hollow shell to correspond to the motion guide inclined plane, and when the movable block moves downwards under the elastic force of the memory spring, the safety pin is firstly driven to be drawn out, and then the trigger end of the movable rod is driven to trigger the fire extinguisher body to work.
9. The automatic fire extinguisher as claimed in claim 8, wherein said fire extinguisher body is a portable fire extinguisher, said safety pin has an outer end circular ring located below said movement guide slope, and said trigger end of said movable lever corresponds to a pressing handle of said portable fire extinguisher.
10. The automatic fire extinguisher as claimed in claim 8, wherein the fire extinguisher body is a piercing type fire extinguisher, the piercing type fire extinguisher is internally filled with a fire extinguishing medium with a compressed high pressure, once an opening of the piercing type fire extinguisher is pierced, the fire extinguishing medium in the piercing type fire extinguisher rapidly overflows to achieve a fire extinguishing effect, the other end of the movable rod is a trigger end corresponding to a film cover sheet of the piercing type fire extinguisher, the trigger end is provided with a conical top head, and the conical top head is provided with an axial hollow channel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810023809.4A CN108079476B (en) | 2018-01-10 | 2018-01-10 | High-precision adjustable automatic trigger device and automatic fire extinguisher with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810023809.4A CN108079476B (en) | 2018-01-10 | 2018-01-10 | High-precision adjustable automatic trigger device and automatic fire extinguisher with same |
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| Publication Number | Publication Date |
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| CN108079476A CN108079476A (en) | 2018-05-29 |
| CN108079476B true CN108079476B (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810023809.4A Active CN108079476B (en) | 2018-01-10 | 2018-01-10 | High-precision adjustable automatic trigger device and automatic fire extinguisher with same |
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| CN111806929A (en) * | 2020-08-18 | 2020-10-23 | 李海斌 | Municipal administration garbage bin with effect of putting out a fire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004008750A (en) * | 2002-06-06 | 2004-01-15 | Satako:Kk | Fire-fighting equipment |
| CN1598378A (en) * | 2004-09-06 | 2005-03-23 | 上海华诚通信器材有限公司 | Sequence valve with temp. memory |
| CN201020185Y (en) * | 2006-09-07 | 2008-02-13 | 侯贵仓 | Active and automatic fire extinguisher device |
| CN102366656A (en) * | 2011-10-30 | 2012-03-07 | 王先全 | Automatic spraying fire extinguisher |
-
2018
- 2018-01-10 CN CN201810023809.4A patent/CN108079476B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004008750A (en) * | 2002-06-06 | 2004-01-15 | Satako:Kk | Fire-fighting equipment |
| CN1598378A (en) * | 2004-09-06 | 2005-03-23 | 上海华诚通信器材有限公司 | Sequence valve with temp. memory |
| CN201020185Y (en) * | 2006-09-07 | 2008-02-13 | 侯贵仓 | Active and automatic fire extinguisher device |
| CN102366656A (en) * | 2011-10-30 | 2012-03-07 | 王先全 | Automatic spraying fire extinguisher |
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| CN108079476A (en) | 2018-05-29 |
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