CN107366768A - A kind of reusable bivalve door safety device - Google Patents
A kind of reusable bivalve door safety device Download PDFInfo
- Publication number
- CN107366768A CN107366768A CN201710708031.6A CN201710708031A CN107366768A CN 107366768 A CN107366768 A CN 107366768A CN 201710708031 A CN201710708031 A CN 201710708031A CN 107366768 A CN107366768 A CN 107366768A
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- Prior art keywords
- center
- valve
- triggering
- safely
- plugging mechanism
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 238000005273 aeration Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
A kind of reusable bivalve door safety device, including valve body, body cavity are provided with outlet, inlet end triggering plugging mechanism safely；Valve body includes housing and is connected to the end cap at housing both ends, end cap is provided with air pipe connector and gas channel, housing cavity is provided with center annulate shaft, center annulate shaft is connected with inner walls by the fanning strip of its periphery and housing cavity is divided into a left side, right chamber room, formed between adjacent two panels fanning strip left, the airway of right chamber room, go out, triggering plugging mechanism is corresponding installed in a left side safely for inlet end, right chamber room and include valve element, thermometal and trigger arm, valve stem slides are arranged on center ring axis center hole one end, its the inner tightly touches the valve body spring being located in center ring axis center hole, its outer end connects cone-shaped valve head；Screens groove is provided with valve rod, one end of thermometal is arranged in the neck of center annulate shaft, other end connection trigger arm, compression spring and steel ball；The device can automatically cut off gas, anti-let out that effect is good, reusable, cost is low.
Description
Technical field
The present invention relates to a kind of safety guard, more particularly to a kind of reusable bivalve door safety device.
Background technology
The domestic liquified gas bomb that uses now uses low-pressure gas such as gas-fueled vehicles etc. to be used as the burning energy
Occasion, be usually connected to flexible pipe, and after family or vehicle fire, due to the intensity of a fire is big or people not at the scene and usually
The valve of gas can not being closed, so as to which gas leakage is uncontrollable once will be blown such as rubber tube in the occasion of the intensity of a fire, will be led
Gas is caused ceaselessly to leak burning, aggravation burning, air accumulator or liquefied gas bottle can even explode, and consequence is hardly imaginable.Therefore,
If we can in time in the case of without personnel or without human users automatic closing gas safety-valve, for protect liquid
The gas bombs such as LPG cylinder and prevent the aggravation of gas combustion leakage from having a huge help, while reduce or avoid the person and property
Injury.
Existing liquid gas storage tank secure connection valve, to prevent from catching fire or fire scenario can automatically cut off the supply of gas,
Prevent fire spreading or gas cylinder from having explosion danger because bottleneck gas burns.But existing safety valve is often to be disposable
Safety valve, once due to self reason failure or onsite application cross once after cannot be continuing with, the cost used compared with
Height, and sealing rubber ring is usually housed in its structure, the rubber failure under the influence of intensity of a fire high temperature and cause the secondary of gas to be let out
The effect for effectively automatically cutting off gas leakage is leaked and do not reached, equally exists potential safety hazard.
The content of the invention
It is an object of the invention to provide a kind of reusable bivalve door safety device, this kind of safety valve for liquidefied petroleum gas exists
Gas can be automatically cut off during intensity of a fire high temperature to be prevented blast caused by gas leakage and can reuse reduction use cost,
It is insufficient existing for above-mentioned prior art to overcome.
The present invention adopts the technical scheme that：A kind of reusable bivalve door safety device, including valve body, the valve
Intracoelomic cavity is provided with outlet side, and triggering plugging mechanism and inlet end trigger safely plugging mechanism safely；
The valve body includes housing and end cap, and end cap is threadedly attached in the both ends of housing, escape pipe is provided with the outside of left end cap
Connector, center are provided with the gas channel that goes out communicated with outlet pipe connector, air inlet pipe connector, center are provided with the outside of right end cap
Provided with the inlet air flow passage communicated with air inlet pipe connector, it is described go out gas channel and inlet air flow passage be interior big outer small taper
Hole；
The housing cavity center is provided with center annulate shaft, and center annulate shaft is connected by the fanning strip of its periphery with inner walls, from
And housing cavity is divided into left chamber and right chamber room, left chamber and the airway of right chamber room are formed between adjacent two panels fanning strip,
Centre bore is provided among the center annulate shaft；
Triggering plugging mechanism is separately mounted to center annulate shaft both ends safely for triggering plugging mechanism and inlet end safely for the outlet side,
Triggering plugging mechanism is located at left chamber safely for outlet side, and triggering plugging mechanism is located at right chamber room to inlet end safely；
Triggering plugging mechanism is arranged on the top or bottom of left chamber axis safely for the outlet side, or is arranged on left chamber simultaneously
The top or bottom of room axis, triggering plugging mechanism includes valve element I, thermometal I and the triggering of " L " shape safely for the outlet side
Arm I, the valve rod I of the valve element I are slidably mounted on the centre bore left end of center annulate shaft, and its inner tightly touches the valve being located in centre bore
Body spring, its outer end connect the cone-shaped valve head I with going out gas channel cooperation；Valve between cone-shaped valve head I and center annulate shaft
Screens groove I is provided with bar I, one end of the thermometal I is arranged in the neck on the left of the annulate shaft of center, the other end and " L " shape
The transverse arm connection of trigger arm I, the upright arm lower end connection compression spring I and steel ball I of " L " shape trigger arm I, valve is in aeration status
Shi Gangqiu I falls in screens groove I；
Triggering plugging mechanism structure is identical safely with outlet side for triggering plugging mechanism safely for the inlet end, is symmetrically mounted on right chamber
The top or bottom of room axis, or the top or bottom of right chamber room axis are arranged on simultaneously；
I.e.：Triggering plugging mechanism includes valve element II, thermometal II and " L " shape trigger arm II, the valve safely for the outlet side
The valve rod II of core II is slidably mounted on the centre bore right-hand member of center annulate shaft, and its inner tightly touches the valve body spring being located in centre bore,
Its outer end connects the cone-shaped valve head II coordinated with inlet air flow passage；On valve rod II between cone-shaped valve head II and center annulate shaft
Screens groove II is provided with, one end of the thermometal II is arranged in the neck on the right side of the annulate shaft of center, and the other end triggers with " L " shape
The transverse arm connection of arm II, the upright arm lower end connection compression spring II and steel ball II of " L " shape trigger arm II, valve is in aeration status
Shi Gangqiu II falls in screens groove II.
Further technical scheme is：The left end cap is provided with close to the larger step part of outlet pipe connector to be easy to revolve
Pine or the flat mouth I tightened, right end cap are provided with the flat mouth be easy to unscrew or tightened close to the larger step part of air inlet pipe connector
Ⅱ。
Due to taking above-mentioned technical proposal, a kind of reusable bivalve door safety device of the present invention has and following had
Beneficial effect：
1. automatically cut off gas, anti-to let out effect more preferable：
Apparatus of the present invention include that structure is identical and triggering plugging mechanism and inlet end trigger safely safely symmetrically arranged outlet side
Plugging mechanism, including valve element, thermometal and " L " shape trigger arm, the valve stem slides of valve element are arranged on the center of center annulate shaft
In hole, its inner tightly touches the valve body spring being located in centre bore, and its outer end connects the taper coordinated with outlet, inlet circulation road respectively
Valve head；Screens groove is provided with valve rod between cone-shaped valve head and center annulate shaft, one end of thermometal is arranged on center ring
In axle neck, the other end is connected with the transverse arm of " L " shape trigger arm, the upright arm lower end of " L " shape trigger arm connection compression spring and
Steel ball, valve steel ball in aeration status fall in screens groove, and under the influence of intensity of a fire high temperature, due to thermometal expanded by heating
Coefficient is larger, and by thermal stretching, so as to jack up the transverse arm of " L " shape trigger arm, the upright arm of " L " shape trigger arm moves, and then
Compression spring and steel ball is pulled to be moved to the direction away from screens groove, finally, steel ball departs from card under the active force of compression spring
Position groove, now steel ball no longer both sides valve element is played the role of positioning, valve body spring recovers deformation under its own resilient effect, at the same to
The right and left stretches, and the valve rod both ends movement to the left and right on both sides is promoted, until the cone-shaped valve head of valve element and both sides end cap taper gas
Circulation road is brought into close contact, while cuts off the air-flow of outlet pipe and the air-flow of admission line, realizes the effect of dual safety protection,
More safe and reliable than in general single valve door, anti-to let out effect more preferable.
It is 2. reusable, cost is low：
Apparatus of the present invention are after fire extinguishing, when the temperature drops, thermometal shortens, and then pulls " L " shape trigger arm, make compression spring
Moved with steel ball to close to the direction of valve rod, meanwhile, by the thin stiff rod similar to chopsticks, give the cone-shaped valve head of two valve elements
To the manpower of body cavity, valve rod starts to compress valve core spring, until steel ball is caught in valve rod card under the active force of compression spring
Position groove, artificial to stop promoting valve element, now steel ball has enough actuating pressures, so as to which the valve element on both sides be fixed, cone-shaped valve head
Disconnecting and contacting with the conical flow passage of left and right end cap, gas circulation, safety valve can sentence normal operating conditions again, and
Without sealing rubber ring in apparatus of the present invention, the phenomenon of rubber failure is not had under the influence of intensity of a fire high temperature, i.e., once due to itself
Reason fails or onsite application is crossed and once remains to be continuing with afterwards, therefore apparatus of the present invention are reusable, and cost is relatively low.
3. the end cap at apparatus of the present invention both ends is equipped with the flat mouth be easy to unscrew or tightened, after long-term use of, it is conveniently replaceable
The parts of device inner chamber.
It is special to a kind of technology of reusable bivalve door safety device of the present invention with reference to the accompanying drawings and examples
Sign is further described.
Brief description of the drawings
Fig. 1：A kind of reusable double valve safety apparatus structure schematic diagram described in embodiment one（Gas circulation shape
State）；
Fig. 2：A kind of reusable double valve safety apparatus structure schematic diagram described in embodiment one（Gas cut-off state）；
In figure：
1- valve elements I, 11- valve rods I, 12- cone-shaped valve heads I, 13- screens groove I, 2- left end caps, 21- outlet pipe connectors, 22- go out
Gas channel, the flat mouths I of 23-, 3- housings, 31- centers annulate shaft, 32- fanning strips, 310- centre bores, 41- thermometals I, 42- heat
Sensitized metal II, 51- trigger arms I, 52- trigger arms II, 61- compression springs I, 62- compression springs II, 71- steel balls I, 72- steel balls
II, 8- valve body spring, 9- right end caps, 91- air inlet pipe connectors, 92- inlet air flow passages, the flat mouths II of 93-, 10- valve elements II, 101-
Valve rod II, 102- cone-shaped valve heads II, 103- screens groove II.
Embodiment
A kind of reusable bivalve door safety device, including valve body, the body cavity are provided with outlet side and touched safely
Send out plugging mechanism and inlet end triggering plugging mechanism safely；
The valve body includes housing 3 and end cap, and end cap is threadedly attached in the both ends of housing, and the outside of left end cap 2 is provided with outlet
Pipe connector 21, center go out gas channel 22 provided with what is communicated with outlet pipe connector, and the outside of right end cap 9 is provided with air inlet pipe and connected
First 91, center is provided with the inlet air flow passage 92 that is communicated with air inlet pipe connector, it is described go out gas channel 22 and inlet air flow passage 92
For interior big outer small bellmouth；
The housing cavity center is provided with center annulate shaft 31, and center annulate shaft is connected by the fanning strip 32 of its periphery with inner walls
Connect, the logical of left chamber and right chamber room is formed so as to which housing cavity is divided into left chamber and right chamber room, between adjacent two panels fanning strip
Air flue, centre bore 310 is provided among the center annulate shaft；
Triggering plugging mechanism is separately mounted to center annulate shaft both ends safely for triggering plugging mechanism and inlet end safely for the outlet side,
Triggering plugging mechanism is located at left chamber safely for outlet side, and triggering plugging mechanism is located at right chamber room to inlet end safely；
Triggering plugging mechanism is arranged on the top or bottom of left chamber axis safely for the outlet side, or is arranged on left chamber simultaneously
The top or bottom of room axis, triggering plugging mechanism includes valve element I 1, thermometal I 41 and " L " shape safely for the outlet side
Trigger arm I 51, the valve rod I of the valve element I are slidably mounted on the centre bore left end of center annulate shaft, and its inner, which tightly touches, is located at centre bore
Interior valve body spring 8, its outer end connect the cone-shaped valve head I 12 with going out the cooperation of gas channel 22；Positioned at cone-shaped valve head I and center ring
Screens groove I 13 is provided with valve rod I between axle, one end of the thermometal I 41 is arranged in the neck on the left of the annulate shaft of center,
The other end is connected with the transverse arm of " L " shape trigger arm I 51, the upright arm lower end connection He of compression spring I 61 of " L " shape trigger arm I 51
Steel ball I 71, valve steel ball I in aeration status fall in screens groove I 13；
Triggering plugging mechanism structure is identical safely with outlet side for triggering plugging mechanism safely for the inlet end, is symmetrically mounted on right chamber
The top or bottom of room axis, or the top or bottom of right chamber room axis are arranged on simultaneously；
I.e.：Triggering plugging mechanism includes valve element II 10, thermometal II 42 and " L " shape trigger arm II 52 safely for the outlet side,
The valve rod II of the valve element II is slidably mounted on the centre bore right-hand member of center annulate shaft, and its inner tightly touches the valve body being located in centre bore
Spring 8, the cone-shaped valve head II 102 that the connection of its outer end coordinates with inlet air flow passage 92；Positioned at cone-shaped valve head II and center annulate shaft it
Between valve rod II on be provided with screens groove II 103, one end of the thermometal II 42 is arranged in the neck on the right side of the annulate shaft of center,
The other end is connected with the transverse arm of " L " shape trigger arm II 52, the upright arm lower end connection compression spring II 62 of " L " shape trigger arm II 52
With steel ball II 72, valve steel ball II in aeration status falls in screens groove II 103.
The left end cap 2 is provided with the flat mouth I 23 be easy to unscrew or tightened close to the larger step part of outlet pipe connector,
Right end cap 9 is provided with the flat mouth II 93 be easy to unscrew or tightened close to the larger step part of air inlet pipe connector.
Operation principle：
Under the influence of intensity of a fire high temperature, thermometal is by thermal stretching, so as to jack up the transverse arm of " L " shape trigger arm, " L " shape trigger arm
Upright arm is pulled up with transverse arm, and then pulls compression spring and steel ball to be moved to the direction away from valve rod screens groove, finally, steel ball
Depart from screens groove under the active force of compression spring, now steel ball no longer plays the role of positioning to both sides valve element, and valve body spring is certainly
The effect of body elastic force is lower to recover deformation, while stretches to the left and right sides, the valve rod both ends movement to the left and right on both sides is promoted, until valve element
Cone-shaped valve head be brought into close contact with both sides end cap conical flow passage, both cut off the air-flow of outlet pipe, again cut off admission line
Air-flow, realize dual safety protection effect, avoid blast；After fire extinguishing, temperature declines, and thermometal shortens, so as to draw
Dynamic " L " shape trigger arm, makes compression spring and steel ball be moved to close to the direction of screens groove, meanwhile, by similar to the thin of chopsticks
Stiff rod, the cone-shaped valve head of two valve elements is given to the manpower of body cavity, valve rod starts to compress valve core spring, until steel ball is being pressed
Valve rod screens groove is caught under the active force of contracting spring, artificial to stop promoting valve element, now steel ball there are enough actuating pressures, so that will
The valve element on both sides is fixed, and cone-shaped valve head disconnects with the conical flow passage of left and right end cap to be contacted, and gas circulation, safety valve is again
Normal operating conditions can be sentenced.
Claims (2)
1. a kind of reusable bivalve door safety device, including valve body, it is characterised in that：The body cavity is provided with outlet
End safety triggering plugging mechanism and inlet end trigger safely plugging mechanism；
The valve body includes housing（3）And end cap, end cap are threadedly attached in the both ends of housing, left end cap（2）Outside is provided with
Outlet pipe connector（21）, center is provided with goes out gas channel with what outlet pipe connector communicated（22）, right end cap（9）Outside is provided with
Air inlet pipe connector（91）, center is provided with the inlet air flow passage communicated with air inlet pipe connector（92）, it is described go out gas channel
（22）With inlet air flow passage（92）For interior big outer small bellmouth；
The housing cavity center is provided with center annulate shaft（31）, fanning strip that center annulate shaft passes through its periphery（32）With inner walls
Connection, so as to which housing cavity is divided into left chamber and right chamber room, left chamber and right chamber room are formed between adjacent two panels fanning strip
Airway, centre bore is provided among the center annulate shaft（310）；
Triggering plugging mechanism is separately mounted to center annulate shaft both ends safely for triggering plugging mechanism and inlet end safely for the outlet side,
Triggering plugging mechanism is located at left chamber safely for outlet side, and triggering plugging mechanism is located at right chamber room to inlet end safely；
Triggering plugging mechanism is arranged on the top or bottom of left chamber axis safely for the outlet side, or is arranged on left chamber simultaneously
The top or bottom of room axis, triggering plugging mechanism includes valve element I safely for the outlet side（1）, thermometal I（41）With
" L " shape trigger arm I（51）, the valve rod I of the valve element I is slidably mounted on the centre bore left end of center annulate shaft, and its inner, which tightly touches, to be set
Valve body spring in centre bore（8）, its outer end connects and goes out gas channel（22）The cone-shaped valve head I of cooperation（12）；Positioned at cone
Screens groove I is provided with valve rod I between shape valve head I and center annulate shaft（13）, the thermometal I（41）One end be arranged on
In neck on the left of thimble axle, the other end and " L " shape trigger arm I（51）Transverse arm connection, " L " shape trigger arm I（51）It is vertical
Arm lower end connects compression spring I（61）With steel ball I（71）, valve steel ball I in aeration status falls in screens groove I（13）It is interior；
Triggering plugging mechanism structure is identical safely with outlet side for triggering plugging mechanism safely for the inlet end, is symmetrically mounted on right chamber
The top or bottom of room axis, or the top or bottom of right chamber room axis are arranged on simultaneously；
I.e.：Triggering plugging mechanism includes valve element II safely for the outlet side（10）, thermometal II（42）" L " shape trigger arm II
（52）, the valve rod II of the valve element II is slidably mounted on the centre bore right-hand member of center annulate shaft, and its inner, which tightly touches, to be located in centre bore
Valve body spring（8）, its outer end connects and inlet air flow passage（92）The cone-shaped valve head II of cooperation（102）；Positioned at cone-shaped valve head II
Screens groove II is provided with valve rod II between the annulate shaft of center（103）, the thermometal II（42）One end be arranged on center
In neck on the right side of annulate shaft, the other end and " L " shape trigger arm II（52）Transverse arm connection, " L " shape trigger arm II（52）It is vertical
Arm lower end connects compression spring II（62）With steel ball II（72）, valve steel ball II in aeration status falls in screens groove II（103）
It is interior.
A kind of 2. reusable bivalve door safety device as claimed in claim 1, it is characterised in that：The left end cap
（2）The flat mouth I be easy to unscrew or tightened is provided with close to the larger step part of outlet pipe connector（23）, right end cap（9）It is close
The larger step part of air inlet pipe connector is provided with the flat mouth II be easy to unscrew or tightened（93）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708031.6A CN107366768A (en) | 2017-08-17 | 2017-08-17 | A kind of reusable bivalve door safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710708031.6A CN107366768A (en) | 2017-08-17 | 2017-08-17 | A kind of reusable bivalve door safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107366768A true CN107366768A (en) | 2017-11-21 |
Family
ID=60308999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710708031.6A Pending CN107366768A (en) | 2017-08-17 | 2017-08-17 | A kind of reusable bivalve door safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107366768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072605A (en) * | 2020-09-14 | 2020-12-11 | 武汉铁路职业技术学院 | Novel communication cable junction box |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090911U (en) * | 1991-01-17 | 1991-12-18 | 韦和生 | Auto-closing valve on fire |
| CN2746224Y (en) * | 2004-02-11 | 2005-12-14 | 全龙浩 | Gas safety valve |
| WO2011007980A2 (en) * | 2009-07-13 | 2011-01-20 | Son Jae-Sun | Overheating-detector gas shutoff cock |
| DE102010011879A1 (en) * | 2010-03-18 | 2011-09-22 | Hydac Technology Gmbh | safety device |
| CN102313037A (en) * | 2010-07-08 | 2012-01-11 | 合成兴业智能工程有限公司 | Power-driven temperature control valve having self-operation function |
| CN204284630U (en) * | 2014-11-21 | 2015-04-22 | 河北天诺仪表有限公司 | A kind of intelligent telemetering control valve |
| CN204437399U (en) * | 2015-01-16 | 2015-07-01 | 浙江米勒洁净设备科技有限公司 | Fire-retardant valve |
| CN206175752U (en) * | 2016-07-29 | 2017-05-17 | 钦州学院 | But repetitious usage's mechanical fire -proof safety valve |
| CN207278972U (en) * | 2017-08-17 | 2018-04-27 | 广西科技大学 | A kind of reusable bivalve door safety device |
-
2017
- 2017-08-17 CN CN201710708031.6A patent/CN107366768A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2090911U (en) * | 1991-01-17 | 1991-12-18 | 韦和生 | Auto-closing valve on fire |
| CN2746224Y (en) * | 2004-02-11 | 2005-12-14 | 全龙浩 | Gas safety valve |
| WO2011007980A2 (en) * | 2009-07-13 | 2011-01-20 | Son Jae-Sun | Overheating-detector gas shutoff cock |
| DE102010011879A1 (en) * | 2010-03-18 | 2011-09-22 | Hydac Technology Gmbh | safety device |
| CN102313037A (en) * | 2010-07-08 | 2012-01-11 | 合成兴业智能工程有限公司 | Power-driven temperature control valve having self-operation function |
| CN204284630U (en) * | 2014-11-21 | 2015-04-22 | 河北天诺仪表有限公司 | A kind of intelligent telemetering control valve |
| CN204437399U (en) * | 2015-01-16 | 2015-07-01 | 浙江米勒洁净设备科技有限公司 | Fire-retardant valve |
| CN206175752U (en) * | 2016-07-29 | 2017-05-17 | 钦州学院 | But repetitious usage's mechanical fire -proof safety valve |
| CN207278972U (en) * | 2017-08-17 | 2018-04-27 | 广西科技大学 | A kind of reusable bivalve door safety device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112072605A (en) * | 2020-09-14 | 2020-12-11 | 武汉铁路职业技术学院 | Novel communication cable junction box |
| CN112072605B (en) * | 2020-09-14 | 2021-10-15 | 武汉铁路职业技术学院 | Novel communication cable junction box |
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Application publication date: 20171121 |
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