CN113289294A - Fire-proof, explosion-proof and early-stage fire extinguishing device for factory - Google Patents
Fire-proof, explosion-proof and early-stage fire extinguishing device for factory Download PDFInfo
- Publication number
- CN113289294A CN113289294A CN202110622928.3A CN202110622928A CN113289294A CN 113289294 A CN113289294 A CN 113289294A CN 202110622928 A CN202110622928 A CN 202110622928A CN 113289294 A CN113289294 A CN 113289294A
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- fixedly connected
- fire
- fire extinguishing
- water tank
- storage water
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
- A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
- A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator
Abstract
The invention provides a factory fire prevention, explosion prevention and early fire extinguishing device, and relates to the field of fire extinguishing devices. This fire extinguishing apparatus based on explosion-proof and early stage of mill's fire prevention, including the ceiling, fixedly connected with blotter and the middle fixedly connected with storage water tank of blotter downside in the middle of the ceiling downside, storage water tank upside outer end is through first spring fixed connection to the inboard top of blotter, there is the slide bar at ceiling left side fixedly connected with guide bar and guide bar one end through ring sliding connection, the other end fixed connection of slide bar all rotates through first pivot at storage water tank left end outside and storage water tank inboard middle both ends and is connected with the baffle. Through first telescopic cylinder, the telescopic cylinder of second, the telescopic cylinder of third and motor, realized the early fire prevention and the function of putting out a fire to the burning things which may cause a fire disaster under the different situation, secondly through blotter, guide bar and first spring, realized explosion-proof function.
Description
Technical Field
The invention relates to the technical field of fire extinguishing devices, in particular to a factory fire prevention and explosion prevention early-stage fire extinguishing device.
Background
A fire refers to a disaster caused by combustion that is out of control in time or space. In the new standard, fire is defined as a temporally or spatially uncontrolled fire, which among the various disasters is one of the most frequent and widespread major disasters threatening public safety and social development.
Present extinguishing device exists at the use of reality, can't carry out different extinguishments according to the demand of difference, secondly has not had explosion-proof mechanism, can't normally work when receiving external influence problem.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a factory fire prevention and explosion prevention early-stage fire extinguishing device, which solves the problems of fire prevention, fire extinguishing and explosion prevention.
In order to achieve the purpose, the invention is realized by the following technical scheme: a factory fire-proof explosion-proof early-stage fire extinguishing device comprises a ceiling, wherein a cushion pad is fixedly connected in the middle of the lower side of the ceiling, a water storage tank is fixedly connected in the middle of the lower side of the cushion pad, the outer end of the upper side of the water storage tank is fixedly connected to the top end of the inner side of the cushion pad through a first spring, a guide rod is fixedly connected to the left side of the ceiling, one end of the guide rod is slidably connected with a sliding rod through a ring, the other end of the sliding rod is fixedly connected to the outer side of the left end of the water storage tank, two ends of the middle of the inner side of the water storage tank are rotatably connected with a partition plate through a first rotating shaft, the upper end of the partition plate is fixedly connected to the upper end of the inner side of the water storage tank through a second spring, an infrared thermometer is uniformly arranged on the lower side of the outer end of the water storage tank, a water outlet pipe is slidably connected to the inner side of the lower end of the water storage tank, a support shell is fixedly connected with a fire extinguishing box, the upper side of the fire extinguishing box is rotatably connected with a baffle plate through a second rotating shaft, the upper side of the baffle plate is connected with the inner side of the supporting shell through a third spring, a second telescopic cylinder is fixedly connected to the right side of the fire extinguishing box, a second telescopic rod is arranged on the inner side of the second telescopic cylinder, the second telescopic rod extends to the left side and passes through the fire extinguishing box to be fixedly connected with a push plate, a first sprinkling hole and a second sprinkling hole are respectively arranged on the lower side and the left side of the fire extinguishing box, a groove is arranged on the outer side of the bottom end of the fire extinguishing box, the inner side of the groove is connected with a connecting pipe in a sliding manner, one end of the inner side of the connecting pipe is fixedly connected with a fixed block, the upper end and the lower end of the fixed block are respectively provided with a slide block, the outer end of the right side of the water storage box is provided with a fixed rod, the other end of the fixed rod is fixedly connected with a motor, the output end of the motor extends to the upper side and is fixedly connected with an insertion pipe, the inner side of the insertion pipe is provided with a third telescopic cylinder, the inner side of the third telescopic cylinder is provided with a third telescopic rod, and the limiting plate extends to the right side of the third telescopic rod, the limiting plate is connected to the right side of the insertion tube in a sliding mode.
Preferably, the two sides of the bottom end of the cushion pad are provided with air outlets, and the bottom ends of the air outlets are provided with rubber sheets.
Preferably, the outer end of the right side of the water storage tank is fixedly connected with a first telescopic cylinder, and a first telescopic rod is arranged on the inner side of the first telescopic cylinder and extends downwards to pass through a connecting rod fixedly connected with a water outlet pipe.
Preferably, the connecting pipe extends upwards to fixedly connect the pressing plate, and a sealing plug is arranged at the bottom end of the pressing plate.
Preferably, the rubber sheet has a small opening on the upper side and a large opening on the lower side.
Preferably, a waterproof plate is fixedly connected to the fixing rod on the upper side of the motor.
Preferably, the upper end of the right side of the water storage tank is fixedly connected with a water inlet.
Preferably, the joint of the partition plates is provided with sealing rubber.
Preferably, a rubber ring is arranged on the outer side of the water outlet pipe on the inner side of the water storage tank.
The working principle is as follows: by leading water into the water storage tank firstly, the temperature in a factory can be detected constantly under the action of an infrared thermometer at the lower end of the outer side of the water storage tank, when high-temperature fire is detected, a connecting rod is driven by a first telescopic cylinder so as to drive a water outlet pipe to slide downwards, an insertion pipe enters a groove at the bottom end of the water outlet pipe and fixes a limiting plate, a fixed block and a sliding block by a third telescopic cylinder, a pressing plate can be pulled downwards by the first telescopic cylinder to plug a first watering hole and can rotate a fire extinguishing box by a motor, when the water outlet pipe is not in contact with the partition plate, the partition plate rotates downwards under the action of a first spring and the gravity of water, the water flows into the water outlet pipe, when the ignition point is a single point, the water flows into the fire extinguishing box through a squeezing pressing plate and then pushes a pushing plate to the left side through a second telescopic cylinder to press the water out to one point, at the moment, the upper side opening is sealed by the blocking plate, secondly when the fire source is comparatively dispersed, first telescopic cylinder drives outlet pipe downstream and makes first watering hole spill with clamp plate upward movement, rotation through the motor is with rivers constantly spill, the early fire prevention and the function of putting out a fire of fire source under the different situation have been realized, secondly through be provided with the blotter between storage water tank upside and ceiling, when receiving external impact, the storage water tank can upwards extrude the blotter under the effect of guide bar and slide bar, air in the blotter can decurrent venthole discharge, because the exit of venthole is provided with the hole little, the big sheet rubber in lower hole, play jointly when receiving external impact with the effect of first spring down, the effect of buffering, gaseous reentrant blotter after the impact, explosion-proof effect has been realized.
Advantageous effects
The invention provides a fire-proof, explosion-proof and early-stage fire extinguishing device for a factory. The method has the following beneficial effects:
1. the invention can detect the temperature in a factory constantly under the action of an infrared thermometer at the lower end outside the water storage tank by introducing water into the water storage tank firstly, when high-temperature fire is detected, the first telescopic cylinder drives the connecting rod to drive the water outlet pipe to slide downwards, the inserting pipe enters the groove at the bottom end of the water outlet pipe and fixes the limiting plate, the fixed block and the sliding block through the third telescopic cylinder, the first telescopic cylinder can pull the pressing plate downwards to plug the first water spraying hole and can rotate the fire extinguishing box through the motor, when the water outlet pipe is not in contact with the partition plate any more, the partition plate rotates downwards under the action of the first spring and the gravity of water, water flows into the water outlet pipe, when the fire point is a single point, the water flows into the fire extinguishing box through the extrusion pressing plate and then pushes the pushing plate to the left side through the second telescopic cylinder to press the water out to one point, and the upper opening is sealed by the blocking plate, secondly when the fire source is comparatively dispersed, first telescopic cylinder drives the outlet pipe downstream and makes first watering hole spill with clamp plate upward movement, and the rotation through the motor is with rivers constantly spill, has realized the early fire prevention and the function of putting out a fire to the fire source under the different situation.
2. According to the invention, the buffer pad is arranged between the upper side of the water storage tank and the ceiling, when the water storage tank is impacted by the outside, the buffer pad can be upwards extruded by the water storage tank under the action of the guide rod and the sliding rod, air in the buffer pad can be discharged through the downward air outlet hole, and the rubber sheet with the small upper hole and the large lower hole is arranged at the outlet of the air outlet hole and jointly plays a role of buffering when the water storage tank is impacted by the outside under the action of the first spring, so that the gas enters the buffer pad again after the impact is finished, and the explosion-proof effect is realized.
Drawings
FIG. 1 is an axial schematic view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic view of the fire suppression box of the present invention;
fig. 4 is a schematic view of the connection structure of the insertion tube and the connection tube of the present invention.
Wherein, 1, a motor; 2. fixing the rod; 3. a connecting rod; 4. a first telescopic rod; 5. a first telescopic cylinder; 6. a rubber ring; 7. a first rotating shaft; 8. a cushion pad; 9. an air outlet; 10. a first spring; 11. a ceiling; 12. a guide bar; 13. a second spring; 14. a rubber sheet; 15. a slide bar; 16. a water storage tank; 17. a partition plate; 18. an infrared thermometer; 19. a water outlet pipe; 20. a third spring; 21. a support housing; 22. blocking the plate; 23. a second rotating shaft; 24. pushing the plate; 25. a second telescopic rod; 26. a second telescopic cylinder; 27. a connecting pipe; 28. a groove; 29. a first watering hole; 30. a second water spray hole; 31. a fire extinguishing box; 32. a third telescopic rod; 33. a third telescopic cylinder; 34. inserting a tube; 35. a slider; 36. a fixed block; 37. and a limiting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in FIGS. 1-4, the embodiment of the invention provides a fire-proof, explosion-proof and early-stage fire extinguishing apparatus for a factory, which comprises a ceiling 11, a cushion 8 is fixedly connected to the middle of the lower side of the ceiling 11, a water storage tank 16 is fixedly connected to the middle of the lower side of the cushion 8, the outer end of the upper side of the water storage tank 16 is fixedly connected to the top end of the inner side of the cushion 8 through a first spring 10, a guide rod 12 is fixedly connected to the left side of the ceiling 11, one end of the guide rod 12 is slidably connected with a sliding rod 15 through a circular ring, the other end of the sliding rod 15 is fixedly connected to the outer side of the left end of the water storage tank 16, two ends of the middle of the inner side of the water storage tank 16 are rotatably connected with a partition plate 17 through a first rotating shaft 7, the upper end of the partition plate 17 is fixedly connected to the upper end of the inner side of the water storage tank 16 through a second spring 13, infrared thermometers 18 are uniformly arranged on the lower side of the outer end of the water storage tank 16, a water outlet pipe 19 is slidably connected to the inner side of the lower end of the water storage tank 16, and the water outlet pipe 19 is fixedly connected to a supporting shell 21 in a downward extension manner, a fire extinguishing box 31 is fixedly connected to the lower side of the supporting shell 21, the upper side of the fire extinguishing box 31 is rotatably connected with a baffle plate 22 through a second rotating shaft 23, the upper side of the baffle plate 22 is connected with the inner side of the supporting shell 21 through a third spring 20, the right side of the fire extinguishing box 31 is fixedly connected with a second telescopic cylinder 26, the inner side of the second telescopic cylinder 26 is provided with a second telescopic rod 25, the second telescopic rod 25 extends towards the left side and extends through the fire extinguishing box 31 to be fixedly connected with a push plate 24, the lower side and the left side of the fire extinguishing box 31 are respectively provided with a first watering hole 29 and a second watering hole 30, the outer side of the bottom end of the fire extinguishing box 31 is provided with a groove 28, the inner side of the groove 28 is slidably connected with a connecting pipe 27, one end of the inner side of the connecting pipe 27 is fixedly connected with a fixed block 36, the upper end and the lower end of the fixed block 36 are both provided with slide blocks 35, the outer end of the right side of the water storage tank 16 is provided with a fixed rod 2, the other end of the fixed rod 2 is fixedly connected with a motor 1, the output end of the motor 1 extends towards the upper side and is fixedly connected with an insertion pipe 34 and the inner side of the insertion pipe 34 is provided with a third telescopic cylinder 33, the third telescopic cylinder 33 is provided with a third telescopic rod 32 on the inner side, the third telescopic rod 32 extends towards the right side and is fixedly connected with a limiting plate 37, and the limiting plate 37 is connected to the right side of the insertion tube 34 in a sliding mode.
According to the invention, water is firstly introduced into the water storage tank 16, the temperature in a factory can be detected constantly under the action of the infrared thermometer 18 at the lower end outside the water storage tank 16, when high-temperature fire is detected, the first telescopic cylinder 5 drives the connecting rod 3 to drive the water outlet pipe 19 to slide downwards, the inserting pipe 34 enters the groove 28 at the bottom end of the water outlet pipe 19, the limiting plate 37 is fixed with the fixing block 36 and the sliding block 35 through the third telescopic cylinder 33, the pressing plate can be pulled downwards through the first telescopic cylinder 5 to plug the first water spraying hole 29, the fire extinguishing box 31 can be rotated through the motor 1, when the water outlet pipe 19 is not in contact with the partition plate 17 any more, the partition plate 17 rotates downwards under the action of the second spring 13 and the water gravity, the water flows into the water outlet pipe 19, when the fire point is a single point, the water flows into the fire extinguishing box 31 through the pressing resistance plate 22, then the pushing plate 24 is pushed to the left through the second telescopic cylinder 26 to press the water to a point, at this time, the baffle plate 22 seals the upper opening, and then when the fire source is relatively dispersed, the first telescopic cylinder 5 drives the water outlet pipe 19 to move downwards to move the pressure plate upwards so that the first water spraying hole 29 leaks out, the water flow is continuously sprayed out by the rotation of the motor 1, the early fire prevention and extinguishing functions of the fire source under different conditions are realized, secondly, by arranging the buffer pad 8 between the upper side of the water storage tank 16 and the ceiling 11, when an external impact is applied, the water storage tank 16 presses the cushion pad 8 upward by the guide rod 12 and the slide rod 15, the air in the cushion pad 8 is discharged through the downward outlet hole 9, because the outlet of the air outlet 9 is provided with the rubber sheet 14 with a small upper hole and a large lower hole, when the rubber sheet and the first spring 10 are impacted by the outside, the buffer function is achieved, and after the impact is finished, the gas enters the buffer pad 8 again, so that the explosion-proof function is achieved.
Both sides of the bottom end of the cushion pad 8 are provided with air outlet holes 9, and the bottom ends of the air outlet holes 9 are provided with rubber sheets 14. When receiving impact, the gas can freely flow in and out, the outer end of the right side of the water storage tank 16 is fixedly connected with a first telescopic cylinder 5, the inner side of the first telescopic cylinder 5 is provided with a first telescopic rod 4, the first telescopic rod 4 extends downwards to be fixedly connected with a water outlet pipe 19 through a connecting rod 3, the moving distance of the water outlet pipe 19 can be controlled through the first telescopic cylinder 5, a connecting pipe 27 extends upwards to be fixedly connected with a pressing plate, the bottom end of the pressing plate is provided with a sealing plug, when single-point fire extinguishing is realized, the first water spraying hole 29 can be blocked, the upper opening of the rubber sheet 14 is small, the lower opening of the rubber sheet 14 is large, so that the gas is easy to give out, buffering is facilitated, a waterproof plate is fixedly connected on a fixing rod 2 on the upper side of the motor 1, the motor 1 is prevented from being damaged by water flow, the upper end of the right side of the water storage tank 16 is fixedly connected with a water inlet, a water source is supplemented through the water inlet, and sealing rubber is arranged at the joint of the partition plate 17, the water flow is fixed on the upper side of the water storage tank 16 to prevent water leakage, and the rubber ring 6 is arranged on the outer side of the water outlet pipe 19 on the inner side of the water storage tank 16 to achieve the sealing effect during water sprinkling.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a factory fire prevention explosion-proof and early stage extinguishing device, includes ceiling (11), its characterized in that: fixedly connected with blotter (8) and fixedly connected with storage water tank (16) in the middle of blotter (8) downside in the middle of ceiling (11) downside, storage water tank (16) upside outer end is through first spring (10) fixed connection to blotter (8) inboard top, ceiling (11) left side fixedly connected with guide bar (12) and guide bar (12) one end have slide bar (15) through ring sliding connection, the other end fixed connection of slide bar (15) all is rotated through first pivot (7) at storage water tank (16) left end outside and storage water tank (16) inboard middle both ends and is connected with baffle (17), baffle (17) upper end all is through second spring (13) fixed connection to storage water tank (16) inboard upper end and storage water tank (16) outer end downside evenly is provided with infrared thermometer (18), storage water tank (16) lower extreme inboard sliding connection has outlet pipe (19) and outlet pipe (19) to extend fixedly connected with storage water tank (16) to the downside A supporting shell (21), the lower side of the supporting shell (21) is fixedly connected with a fire extinguishing box (31) and the upper side of the fire extinguishing box (31) is rotatably connected with a baffle plate (22) through a second rotating shaft (23), the upper side of the baffle plate (22) is connected with the inner side of the supporting shell (21) through a third spring (20), a second telescopic rod (25) is fixedly connected with the right side of the fire extinguishing box (31) and the inner side of the second telescopic cylinder (26), the second telescopic rod (25) extends to the left side and extends through the fixedly connected push plate (24) of the fire extinguishing box (31), the lower side and the left side of the fire extinguishing box (31) are respectively provided with a first sprinkling hole (29) and a second sprinkling hole (30) and the outer side of the bottom end of the fire extinguishing box (31) is provided with a groove (28), the inner side of the groove (28) is slidably connected with a connecting pipe (27), the inner side of the fire extinguishing box (27) is fixedly connected with a fixing block (36) and the upper end and the lower end of the fixing block (36) are provided with a sliding block (35), storage water tank (16) right side outer end is provided with other end downside fixedly connected with motor (1) of dead lever (2) and dead lever (2), the output of motor (1) is to the upside extend fixedly connected with intubate (34) and intubate (34) inboard be provided with third telescopic cylinder (33), third telescopic cylinder (33) inboard is provided with third telescopic link (32) and extends fixedly connected with limiting plate (37) to the right side, limiting plate (37) sliding connection is on intubate (34) right side.
2. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: the bottom end of the cushion pad (8) is provided with air outlet holes (9) on both sides, and the bottom end of each air outlet hole (9) is provided with a rubber sheet (14).
3. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: storage water tank (16) right side outer end fixedly connected with first telescopic cylinder (5) and first telescopic cylinder (5) inboard are provided with first telescopic link (4), first telescopic link (4) extend to the downside and pass through connecting rod (3) fixed connection outlet pipe (19).
4. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: the connecting pipe (27) extends upwards to fixedly connect the pressing plate, and the bottom end of the pressing plate is provided with a sealing plug.
5. A fire and explosion protection and early fire extinguishing apparatus for factory according to claim 2, wherein: the upper side opening of the rubber sheet (14) is small, and the lower side opening is large.
6. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: the fixing rod (2) on the upper side of the motor (1) is fixedly connected with a waterproof plate.
7. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: the upper end of the right side of the water storage tank (16) is fixedly connected with a water inlet.
8. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: and sealing rubber is arranged at the joint of the partition plates (17).
9. A fire and explosion protection and early fire extinguishing apparatus for a factory according to claim 1, wherein: and a rubber ring (6) is arranged on the outer side of the water outlet pipe (19) on the inner side of the water storage tank (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110622928.3A CN113289294B (en) | 2021-06-04 | 2021-06-04 | Fire-proof, explosion-proof and early-stage fire extinguishing device for factory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110622928.3A CN113289294B (en) | 2021-06-04 | 2021-06-04 | Fire-proof, explosion-proof and early-stage fire extinguishing device for factory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113289294A true CN113289294A (en) | 2021-08-24 |
| CN113289294B CN113289294B (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110622928.3A Active CN113289294B (en) | 2021-06-04 | 2021-06-04 | Fire-proof, explosion-proof and early-stage fire extinguishing device for factory |
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| Country | Link |
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| CN (1) | CN113289294B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242553A (en) * | 2001-02-13 | 2002-08-28 | Kyoritsu Sash Kogyo Kk | Fire preventive structure for folding door |
| CN2748507Y (en) * | 2004-09-27 | 2005-12-28 | 董建民 | Gravity irrigation valve for paddy field |
| CN101045223A (en) * | 2006-03-27 | 2007-10-03 | 张卫社 | Constant-pressure type water spraying head |
| CN106983973A (en) * | 2017-04-06 | 2017-07-28 | 南昌安润科技有限公司 | A kind of switchgear house electrical appliance fireproof fire-extinguishing equipment |
| CN212931694U (en) * | 2020-09-25 | 2021-04-09 | 安徽永汇电力工程有限公司 | Automatic alarm device for power supply and distribution |
-
2021
- 2021-06-04 CN CN202110622928.3A patent/CN113289294B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002242553A (en) * | 2001-02-13 | 2002-08-28 | Kyoritsu Sash Kogyo Kk | Fire preventive structure for folding door |
| CN2748507Y (en) * | 2004-09-27 | 2005-12-28 | 董建民 | Gravity irrigation valve for paddy field |
| CN101045223A (en) * | 2006-03-27 | 2007-10-03 | 张卫社 | Constant-pressure type water spraying head |
| CN106983973A (en) * | 2017-04-06 | 2017-07-28 | 南昌安润科技有限公司 | A kind of switchgear house electrical appliance fireproof fire-extinguishing equipment |
| CN212931694U (en) * | 2020-09-25 | 2021-04-09 | 安徽永汇电力工程有限公司 | Automatic alarm device for power supply and distribution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113289294B (en) | 2022-02-18 |
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Inventor after: Zhang Andong Inventor after: Song Jian Inventor after: Wu Duanmin Inventor after: Ma Wenyao Inventor before: Zhang Andong Inventor before: Liu Huantao Inventor before: Mu Xiaobin Inventor before: Song Jian |
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