CN108825866B - Building fire prevention early warning device for putting out a fire - Google Patents
Building fire prevention early warning device for putting out a fire Download PDFInfo
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- CN108825866B CN108825866B CN201810664666.5A CN201810664666A CN108825866B CN 108825866 B CN108825866 B CN 108825866B CN 201810664666 A CN201810664666 A CN 201810664666A CN 108825866 B CN108825866 B CN 108825866B
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- fixedly connected
- rod
- valve body
- block
- early warning
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- 230000002265 prevention Effects 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 238000010586 diagram Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Classifications
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- 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
- F16K39/00—Devices for relieving the pressure on the sealing faces
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
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- 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
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- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an early warning device for building fire prevention and extinguishment, which comprises a valve body, wherein a pressure relief opening is formed in the left side of the valve body, fixing rods are arranged on the upper side and the lower side of the pressure relief opening, the right end of each fixing rod is fixedly connected with the left side of the valve body, a supporting plate is fixedly connected to one end, far away from the valve body, of each fixing rod, two symmetrically distributed telescopic rods are fixedly connected to the left side of the supporting plate, a pressure relief block is fixedly connected to one end, far away from the supporting plate, of each telescopic rod, a sealing gasket is arranged on the surface of the pressure relief block, a first spring is sleeved on the outer wall of each telescopic rod, one end, far. The invention can effectively release the pressure in the valve body, can conveniently install and disassemble the pressure release mechanism, and can effectively prevent the connection part of the water pipe and the valve body from loosening when water is supplied.
Description
Technical Field
The invention relates to the technical field of building fire prevention and extinguishment, in particular to a building fire prevention and extinguishment early warning device.
Background
Fires caused by power distribution cabinet decay, line aging, equipment short circuit, improper operation of electric equipment and the like in enterprises are the most common. The main reason for this is that the power protection devices do not provide a good protection function and cannot effectively protect the devices and control the resulting fire source when an electrical short occurs.
The existing early warning device for building fire prevention and extinguishment is mostly arranged in a roof, when the pressure in the wet alarm valve is too large, the water pipe is easily broken, workers are still required to maintain the water pipe, the water pipe is too complicated and inconvenient, and under the condition that the water pipe is placed for a long time, water is suddenly supplied to the water pipe, the water pipe is easily connected with the wet alarm valve to cause looseness, so that the normal use of the early warning device for building fire prevention and extinguishment is influenced.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when the pressure in a valve clack is too high, a water pipe is easy to break, workers need to maintain the valve pipe, the water pipe is too complicated and inconvenient, and under the condition that the water pipe is placed for a long time, water is suddenly introduced, so that the water pipe and the valve clack are easy to be connected and loosened, and the normal use of the early warning device for building fire prevention and extinguishment is influenced.
In order to achieve the purpose, the invention adopts the following technical scheme:
a building fire prevention and extinguishment early warning device comprises a valve body, wherein a pressure relief opening is formed in the left side of the valve body, fixed rods are arranged on the upper side and the lower side of the pressure relief opening, the right end of each fixed rod is fixedly connected with the left side of the valve body, a supporting plate is fixedly connected to one end, far away from the valve body, of each fixed rod, two symmetrically distributed telescopic rods are fixedly connected to the left side of the supporting plate, a pressure relief block is fixedly connected to one end, far away from the supporting plate, of each telescopic rod, a sealing gasket is arranged on the surface of the pressure relief block, a first spring is sleeved on the outer wall of each telescopic rod, one end, far away from the telescopic rod, of each first spring is fixedly connected with the left side of the pressure relief block, first sliding blocks are fixedly connected to the upper side and the lower side of each pressure, the left side of fixed plate is equipped with chucking mechanism, the left and right sides of valve body all is equipped with hold-down mechanism.
Preferably, chucking mechanism include with fixed plate left side fixed connection's fixed block, be equipped with the cavity in the fixed block, and be equipped with second spring and gag lever post in the cavity, the both ends of second spring respectively with the lateral wall of cavity and the one end fixed connection of gag lever post, the lateral wall and the outside extension of cavity are passed to the one end that the second spring was kept away from to the gag lever post, the recess corresponding with the fixed block has been seted up in the left side of valve body, the through-hole corresponding with the gag lever post has been seted up to one side of recess.
Preferably, the left and right sides of gag lever post all fixedly connected with fourth slider, the fourth spout with fourth slider accordant connection is all seted up to the left and right sides of cavity.
Preferably, the left side of the valve body is fixedly connected with a first support rod, one side of the first support rod is provided with a first L-shaped support frame, the left end of the horizontal part of the first L-shaped support frame penetrates through the side wall of the through hole and abuts against one side of the limit rod, and the right end of the limit rod is provided with a bevel edge.
Preferably, one end of the vertical part of the first L-shaped support frame is fixedly connected with a second sliding block, and a second sliding groove in matching connection with the second sliding block is formed in the surface of the first support bar.
Preferably, a sliding rod is arranged between the two telescopic rods, the left end of the sliding rod is fixedly connected with the right side of the supporting plate, and the right end of the sliding rod penetrates through the side wall of the pressure release block and is fixedly connected with a limiting block.
Preferably, hold-down mechanism includes rotates the second L type support frame of being connected with the valve body left and right sides, the top fixedly connected with second bracing piece of second L type support frame, the screw has been seted up on the surface of second bracing piece, and screw female connection has a threaded rod, the bottom of second bracing piece is equipped with the arc clamp plate, the top of threaded rod is passed through antifriction bearing and is rotated with the top of arc clamp plate and be connected, the lateral wall fixedly connected with third slider of arc clamp plate, the third spout with third slider accordant connection is seted up to the lateral wall of second L type support frame.
Preferably, the top of the threaded rod is fixedly connected with a rotating block.
Preferably, the bottom of the arc-shaped pressing plate is provided with a rubber pad.
Compared with the prior art, the invention provides a building fire prevention and extinguishing early warning device, which has the following beneficial effects:
1. the early warning device for fire prevention and extinguishment of the building is provided with the pressure relief port, the telescopic rod, the supporting plate and the pressure relief block, when the internal pressure of the valve body is too high and pressure relief is needed, the pressure relief block is extruded by the pressure on the inner wall of the valve body, the telescopic rod and the first spring are extruded by the pressure relief block, the first spring and the telescopic rod shrink inwards and drive the pressure relief block to slide in the first chute through the first sliding block, the pressure relief block is far away from the pressure relief port, the internal pressure of the valve body is discharged through the pressure relief port, when the pressure is insufficient, the first spring and the telescopic rod push the pressure relief block to slide in the pressure relief port in the first chute through the first sliding block, the pressure relief can be effectively carried out in the valve body, when the pressure relief mechanism needs to be disassembled and maintained, the first L-shaped supporting frame is pressed, the first L-shaped supporting frame extrudes the inclined edge of the limiting rod, the limiting rod extrudes the second, otherwise, install pressure relief mechanism, can conveniently install and dismantle pressure relief mechanism, avoided when wet-type alarm valve internal pressure is too big, lead to the water pipe to break easily, still need the staff to maintain it, problem complicated and inconvenient too.
2. This early warning device is used in building fire prevention extinguishment, through being provided with hold-down mechanism, when being connected the pipeline with the valve body through the ring flange, the turning block rotates, the turning block drives the threaded rod at the screw internal rotation, the threaded rod promotes the arc clamp plate and slides in the third spout through the third slider, the arc clamp plate presss from both sides two ring flanges tightly, can effectually prevent that water pipe and valve body junction produce not hard up when leading to water, avoided under the long-time condition of placing of water pipe, it is difficult to lead to water suddenly, lead to water pipe and wet-type alarm valve to be connected easily and produce not hard up, thereby influence building fire prevention and put out a fire and use early warning device normal.
The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, the pressure relief mechanism can effectively relieve the pressure in the valve body, the installation and the disassembly of the pressure relief mechanism can be convenient, and meanwhile, the looseness of the connection part of the water pipe and the valve body can be effectively prevented when water is supplied.
Drawings
FIG. 1 is a schematic structural diagram of an early warning device for building fire prevention and extinguishing according to the present invention;
fig. 2 is a schematic structural diagram of a part a of the early warning device for fire prevention and extinguishment in a building according to the present invention.
In the figure: the device comprises a valve body 1, a fixing rod 2, a supporting plate 3, a telescopic rod 4, a pressure releasing block 5, a first spring 6, a fixing plate 7, a clamping mechanism 8, a pressing mechanism 9, a fixing block 10, a second spring 11, a limiting rod 12, a first supporting rod 13, a first L-shaped supporting frame 14, a sliding rod 15, a limiting block 16, a second L-shaped supporting frame 17, a second supporting rod 18, a threaded rod 19, an arc-shaped pressing plate 20 and a rotating block 21.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-2, an early warning device for building fire prevention and extinguishment comprises a valve body 1, a pressure relief opening is arranged on the left side of the valve body 1, fixing rods 2 are arranged on the upper side and the lower side of the pressure relief opening, the right end of each fixing rod 2 is fixedly connected with the left side of the valve body, a supporting plate 3 is fixedly connected with one end, far away from the valve body 1, of each fixing rod 2, two symmetrically distributed telescopic rods 4 are fixedly connected with the left side of each supporting plate 3, a sliding rod 15 is arranged between the two telescopic rods 4, the left end of each sliding rod 15 is fixedly connected with the right side of each supporting plate 3, the right end of each sliding rod 15 penetrates through the side wall of each pressure relief block 5 and is fixedly connected with a limiting block 16, the position of each pressure relief block 5 can be conveniently limited, one end, far away from the supporting plate 3, of each telescopic rod 4 is fixedly, the upper side and the lower side of the pressure relief block 5 are both fixedly connected with a first slide block, one side opposite to the two fixing rods 2 is both provided with a first chute which is in matching connection with the first slide block, one side opposite to the two fixing rods 2 is both fixedly connected with a fixing plate 7, the left side of the fixing plate 7 is provided with a clamping mechanism 8, the clamping mechanism 8 comprises a fixing block 10 which is fixedly connected with the left side of the fixing plate 7, a cavity is arranged in the fixing block 10, a second spring 11 and a limiting rod 12 are arranged in the cavity, the left side and the right side of the limiting rod 12 are both fixedly connected with a fourth slide block, the left side and the right side of the cavity are both provided with a fourth chute which is in matching connection with the fourth slide block, two ends of the second spring 11 are respectively and fixedly connected with the side wall of the cavity and one end of the limiting rod 12, one end of the limiting, a through hole corresponding to the limiting rod 12 is arranged at one side of the groove, a first supporting rod 13 is fixedly connected at the left side of the valve body 1, a first L-shaped supporting frame 14 is arranged at one side of the first supporting rod 13, the left end of the horizontal part of the first L-shaped supporting frame 14 penetrates through the side wall of the through hole and is abutted against one side of the limiting rod 12, a bevel edge is arranged at the right end of the limiting rod 12, a second sliding block is fixedly connected at one end of the vertical part of the first L-shaped supporting frame 14, a second sliding chute matched and connected with the second sliding block is arranged on the surface of the first supporting rod 13, a pressing mechanism 9 is arranged at each of the left side and the right side of the valve body 1, the pressing mechanism 9 comprises a second L-shaped supporting frame 17 rotatably connected with the left side and the right side of the valve body 1, a second supporting rod 18 is fixedly connected at the top of the second L-shaped supporting frame 17, can conveniently rotate threaded rod 19, the bottom of second bracing piece 18 is equipped with arc clamp plate 20, and arc clamp plate 20's bottom is equipped with the rubber pad, can increase arc splint 20's frictional force, and antifriction bearing is passed through at threaded rod 19's top and arc clamp plate 20 rotates to be connected, and arc clamp plate 20's lateral wall fixedly connected with third slider, the third spout with third slider accordant connection is seted up to the lateral wall of second L type support frame 17.
In the invention, when the pressure in the valve body 1 is too high and needs to be relieved, the pressure on the inner wall of the valve body 1 extrudes the pressure relief block 5, the pressure relief block 5 extrudes the telescopic rod 4 and the first spring 6, the first spring 6 and the telescopic rod 4 contract inwards and drive the pressure relief block 5 to slide in the first chute through the first slide block, the pressure relief block 5 is far away from a pressure relief opening, the pressure in the valve body 1 is discharged through the pressure relief opening, when the pressure is insufficient, the first spring 6 and the telescopic rod 4 push the pressure relief block 5 to slide into the pressure relief opening in the first chute through the first slide block, the pressure in the valve body 1 can be effectively relieved, when the pressure relief mechanism needs to be disassembled and maintained, the first L-shaped support frame 14 is pressed, the first L-shaped support frame 14 extrudes the inclined edge of the limiting rod 12, the limiting rod 12 extrudes the second spring 11, the second spring 11 contracts inwards and drives the limiting rod 12 to slide into the fixed block, on the contrary, install pressure relief mechanism, can conveniently install and dismantle pressure relief mechanism, when being connected the pipeline with valve body 1 through the ring flange, rotate turning block 21, turning block 21 drives threaded rod 19 at the screw internal rotation, and threaded rod 19 promotes arc clamp plate 20 and slides in the third spout through the third slider, and arc clamp plate 20 presss from both sides two ring flanges tightly, can effectually prevent that the water pipe from producing not hard up with valve body 1 junction when leading to water.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The early warning device for building fire prevention and extinguishment comprises a valve body (1) and is characterized in that a pressure relief opening is formed in the left side of the valve body (1), fixing rods (2) are arranged on the upper side and the lower side of the pressure relief opening, the right end of each fixing rod (2) is fixedly connected with the left side of the valve body, a supporting plate (3) is fixedly connected with one end, away from the valve body (1), of each fixing rod (2), two symmetrically-distributed telescopic rods (4) are fixedly connected with the left side of each supporting plate (3), a pressure relief block (5) is fixedly connected with one end, away from the supporting plate (3), of each telescopic rod (4), a sealing gasket is arranged on the surface of each pressure relief block (5), a first spring (6) is sleeved on the outer wall of each telescopic rod (4), one end, away from each telescopic rod (4), of each first spring (6) is fixedly connected with the left side of each pressure, a first chute which is connected with the first sliding block in a matching way is formed in one opposite side of each of the two fixing rods (2), a fixing plate (7) is fixedly connected to one opposite side of each of the two fixing rods (2), a clamping mechanism (8) is arranged on the left side of the fixing plate (7), pressing mechanisms (9) are arranged on the left side and the right side of the valve body (1), each clamping mechanism (8) comprises a fixing block (10) fixedly connected with the left side of the fixing plate (7), a cavity is formed in each fixing block (10), a second spring (11) and a limiting rod (12) are arranged in each cavity, two ends of each second spring (11) are fixedly connected with the side wall of each cavity and one end of each limiting rod (12), one end, far away from each second spring (11), of each limiting rod (12) penetrates through the side wall of each cavity and extends outwards, a groove corresponding to the fixing block (10) is formed in the left, one side of the groove is provided with a through hole corresponding to the limiting rod (12).
2. The building fire prevention and extinguishment early warning device as claimed in claim 1, wherein fourth sliding blocks are fixedly connected to the left side and the right side of the limiting rod (12), and fourth sliding grooves in matched connection with the fourth sliding blocks are formed in the left side and the right side of the cavity.
3. The building fire prevention and extinguishment early warning device as claimed in claim 2, wherein a first support rod (13) is fixedly connected to the left side of the valve body (1), a first L-shaped support frame (14) is arranged on one side of the first support rod (13), the left end of the horizontal part of the first L-shaped support frame (14) penetrates through the side wall of the through hole and abuts against one side of the limit rod (12), and a bevel edge is arranged at the right end of the limit rod (12).
4. The building fire prevention and extinguishment early warning device as claimed in claim 3, wherein a second sliding block is fixedly connected to one end of the vertical part of the first L-shaped support frame (14), and a second sliding groove in matched connection with the second sliding block is formed in the surface of the first support rod (13).
5. The building fire prevention and extinguishment early warning device as claimed in claim 1, wherein a sliding rod (15) is arranged between the two telescopic rods (4), the left end of the sliding rod (15) is fixedly connected with the right side of the supporting plate (3), and the right end of the sliding rod (15) penetrates through the side wall of the pressure release block (5) and is fixedly connected with a limiting block (16).
6. The building fire prevention early warning device of putting out a fire of claim 1, characterized in that, hold-down mechanism (9) include with valve body (1) left and right sides rotate second L type support frame (17) of being connected, top fixedly connected with second bracing piece (18) of second L type support frame (17), the screw has been seted up on the surface of second bracing piece (18), and screw female connection has threaded rod (19), the bottom of second bracing piece (18) is equipped with arc clamp plate (20), the top of threaded rod (19) is passed through antifriction bearing and is rotated with the top of arc clamp plate (20) and be connected, the lateral wall fixedly connected with third slider of arc clamp plate (20), the third spout with third slider accordant connection is seted up to the lateral wall of second L type support frame (17).
7. The building fire prevention and extinguishing early warning device as claimed in claim 6, wherein a rotating block (21) is fixedly connected to the top of the threaded rod (19).
8. The building fire prevention and extinguishing early warning device as claimed in claim 7, wherein the bottom of the arc-shaped pressing plate (20) is provided with a rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664666.5A CN108825866B (en) | 2018-06-25 | 2018-06-25 | Building fire prevention early warning device for putting out a fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810664666.5A CN108825866B (en) | 2018-06-25 | 2018-06-25 | Building fire prevention early warning device for putting out a fire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108825866A CN108825866A (en) | 2018-11-16 |
| CN108825866B true CN108825866B (en) | 2020-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810664666.5A Active CN108825866B (en) | 2018-06-25 | 2018-06-25 | Building fire prevention early warning device for putting out a fire |
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| Country | Link |
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| CN (1) | CN108825866B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324116B (en) * | 2021-06-15 | 2022-02-22 | 莱斯安全阀门(天津)有限公司 | High-stability safety valve and pipeline connecting device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848197A1 (en) * | 1996-12-11 | 1998-06-17 | Ceodeux-Fire Extinguisher Valves Technology S.A. | Trigger valve, in particular for high pressure area |
| CN202128844U (en) * | 2011-06-03 | 2012-02-01 | 福建省三鲸消防器材有限公司 | Wet-type alarm valve |
| CN206656026U (en) * | 2017-04-22 | 2017-11-21 | 福建省南安市恒盾消防配套厂 | Decompression type groove wet alarm valve |
| CN206910645U (en) * | 2017-06-05 | 2018-01-23 | 鸿安消防设备有限公司 | A kind of multi-purpose formula fire pump adapter |
| CN207261749U (en) * | 2017-10-09 | 2018-04-20 | 中亚阀门有限公司 | A kind of self-relieving shut-off valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2331381Y (en) * | 1998-05-27 | 1999-08-04 | 王虎儒 | Wet-type alarm valve for fire fighting |
| IT201600090459A1 (en) * | 2016-09-07 | 2018-03-07 | Bocciolone Antincendio S P A | DRY ALARM VALVE GROUP FOR THE CONTROL OF A SPRINKLER FIRE SYSTEM |
-
2018
- 2018-06-25 CN CN201810664666.5A patent/CN108825866B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0848197A1 (en) * | 1996-12-11 | 1998-06-17 | Ceodeux-Fire Extinguisher Valves Technology S.A. | Trigger valve, in particular for high pressure area |
| CN202128844U (en) * | 2011-06-03 | 2012-02-01 | 福建省三鲸消防器材有限公司 | Wet-type alarm valve |
| CN206656026U (en) * | 2017-04-22 | 2017-11-21 | 福建省南安市恒盾消防配套厂 | Decompression type groove wet alarm valve |
| CN206910645U (en) * | 2017-06-05 | 2018-01-23 | 鸿安消防设备有限公司 | A kind of multi-purpose formula fire pump adapter |
| CN207261749U (en) * | 2017-10-09 | 2018-04-20 | 中亚阀门有限公司 | A kind of self-relieving shut-off valve |
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| Publication number | Publication date |
|---|---|
| CN108825866A (en) | 2018-11-16 |
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Effective date of registration: 20240314 Address after: No.89 Tonggang Avenue, hi tech Zone, Chizhou City, Anhui Province 247100 Patentee after: CHIZHOU YONGPAN ZHIYAN ELECTROMECHANICAL CO.,LTD. Country or region after: China Address before: 243000 Kangtai Jiayuan 24-12, Yushan District, Ma'anshan City, Anhui Province Patentee before: MAANSHAN AICHENG ELECTRONIC TECHNOLOGY Co.,Ltd. Country or region before: China |