CN109621269B - Intelligent indoor fire hydrant system - Google Patents
Intelligent indoor fire hydrant system Download PDFInfo
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- CN109621269B CN109621269B CN201811570251.8A CN201811570251A CN109621269B CN 109621269 B CN109621269 B CN 109621269B CN 201811570251 A CN201811570251 A CN 201811570251A CN 109621269 B CN109621269 B CN 109621269B
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- fire hydrant
- groove
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
Abstract
The invention discloses an intelligent indoor fire hydrant system which comprises a fire hydrant body, a water pressure detection device, a flow detection device, a controller and a water theft prevention device, wherein the water pressure detection device, the flow detection device, the controller and the water theft prevention device are all arranged on the fire hydrant body, the water pressure detection device is connected with the controller and used for detecting water pressure inside the fire hydrant, the flow detection device is connected with the controller and used for detecting flow inside the fire hydrant, and the water theft prevention device is arranged inside the fire hydrant body and plays a role in preventing water theft. Compared with the prior art, the fire hydrant provided by the invention has the characteristics that the water pressure and the water quantity in the fire hydrant are detected, so that whether the fire hydrant is available or not is clear, the artificial water stealing is reduced, and the fire extinguishing efficiency is improved.
Description
Technical Field
The invention relates to the field of fire hydrants, in particular to an intelligent indoor fire hydrant system.
Background
The fire hydrant is an indispensable device in the fire fighting process, whether the fire hydrant can be normally used depends on the fire fighting efficiency and speed, and plays an important role in the fire fighting process. The existing fire hydrant can cause pipeline damage or cause the situation that water pressure and water quantity are insufficient when fire fighting supplies water because someone steals water maliciously, so that flames can not be put out quickly, fire fighting time is delayed, and property loss of people is further increased.
In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.
Disclosure of Invention
The invention mainly aims to provide an intelligent indoor fire hydrant system which has the characteristics of detecting the water pressure and the water quantity in a fire hydrant, further, whether the fire hydrant is available or not is clear, the artificial water stealing is reduced, and the fire extinguishing efficiency is improved.
In order to achieve the above purpose, the solution of the invention is:
an intelligent indoor fire hydrant system comprises a fire hydrant body, a water pressure detection device, a flow detection device, a controller and a water theft prevention device, wherein the water pressure detection device, the flow detection device, the controller and the water theft prevention device are all arranged on the fire hydrant body, the water pressure detection device is connected with the controller and used for detecting water pressure inside the fire hydrant, the flow detection device is connected with the controller and used for detecting flow inside the fire hydrant, and the water theft prevention device is arranged inside the fire hydrant body and plays a role in water theft prevention;
the water stealing prevention device comprises a rotating disc, a threaded rod, an opening device, a valve rod and a valve core, wherein the rotating disc, the threaded rod, the opening device, the valve rod and the valve core are sequentially arranged from top to bottom;
opening device includes actuating lever, worm wheel, first butt piece, pressure spring and worm, the actuating lever is vertical to be established under the threaded rod, the worm wheel level is established on the actuating lever, first butt piece is established on the actuating lever and is in the below of worm wheel, the one end of pressure spring with the lower extreme of actuating lever is connected, the other end and the bottom of storage tank of pressure spring are connected, the diameter of storage tank is greater than the diameter of actuating lever, still be equipped with on the storage tank be used for with first butt piece complex second butt piece, the worm level is established on the fire hydrant body.
Further, the rotating disc comprises a disc part, an annular adapter part and a spoke part, one end of the spoke part is connected with the annular adapter part, the other end of the spoke part is connected with the disc part, a first-stage groove, a second-stage groove and an annular limiting block are arranged on the periphery of the annular adapter part, the first-stage groove horizontally extends from the outer peripheral surface of the annular adapter part to the inner peripheral surface, the second-stage groove is provided with an inner peripheral surface of the annular adapter part and horizontally extends to the outer peripheral surface and is communicated with the first-stage groove, the notch of the first-stage groove is larger than that of the second-stage groove, and the annular limiting block is positioned at the bottom end of the annular adapter part; the threaded rod comprises a threaded portion and a rotating portion, the rotating portion is located on the inner peripheral surface of the annular switching portion and is connected with the annular switching portion in a rotating mode, the rotating portion is provided with an annular limiting groove and a limiting assembly, the annular limiting groove is formed in the bottom end of the outer peripheral surface of the rotating portion and is connected with the annular limiting block in a matched mode, the limiting assembly comprises a groove, a rotating block and a tension spring, the groove is horizontally arranged on the outer peripheral surface of the rotating portion and corresponds to the first-stage groove, the tension spring and the rotating block are horizontally arranged in the groove, one end of the tension spring is connected with the bottom of the groove, the other end of the tension spring is connected with the rotating block, and the.
Furthermore, four limiting assemblies are provided, the number of the first-stage grooves and the number of the second-stage grooves are four, and the four first-stage grooves and the four second-stage grooves are correspondingly matched with the four limiting assemblies.
Further, still be equipped with the worm that runs through the fire hydrant body on the fire hydrant body and adjust the opening, the worm level is established on the worm adjusts the opening, the worm is adjusted the opening and is included horizontal part and vertical portion, the horizontal part level sets up, the vertical setting of vertical portion, the tip of horizontal part and the end connection of vertical portion and the level of horizontal part are higher than vertical portion, the worm matches to butt on horizontal part or vertical portion.
The intelligent indoor fire hydrant system further comprises an opening wrench, wherein the opening wrench comprises a first opening part and a second opening part, the first opening part and the second opening part are rotatably connected, two groups of the first opening parts are provided, each group of the first opening parts comprises a semicircular part, a first-stage block and a second-stage block, the first-stage block is arranged on the inner circumferential surface of the semicircular part, the second-stage block is arranged on the first-stage block, the first-stage block and the second-stage block are respectively matched with the first-stage groove and the second-stage groove, and the first-stage block and the second-stage block are both magnets; the worm is further provided with a strip-shaped rotating opening, and the second opening portion is matched with the strip-shaped rotating opening.
After the structure is adopted, the intelligent indoor fire hydrant system realizes monitoring of water pressure and water flow in the fire hydrant by the arrangement of the water pressure detection device and the flow detection device, so that the water pressure and the water flow in the fire hydrant can be clearly judged. When the fire is extinguished, whether the fire hydrant is available or not and whether the water pressure and the water quantity are enough to extinguish the fire are quickly judged through the detected condition, so that the fire fighting efficiency is greatly improved. And the water stealing prevention device avoids the problem that the fire hydrant cannot effectively play a role when needing to extinguish fire due to the fact that water pressure and water quantity inside the fire hydrant are insufficient because someone maliciously steals water in daily life. Compared with the prior art, the fire hydrant provided by the invention has the advantages that the fire extinguishing and rescuing speed of fire fighters is greatly improved, the rescuing efficiency is ensured, and the fire hydrant in daily life is prevented from being stolen.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a perspective exploded view of the internal structure of the present invention.
Fig. 4 is an exploded sectional view of the internal structure of the present invention.
Fig. 5 is a schematic view showing the assembly position of the internal structure in the present invention.
Fig. 6 is a side view of the present invention.
Fig. 7 is an enlarged schematic view of a portion a in fig. 4.
Fig. 8 is a schematic perspective view of the opening wrench of the present invention.
In the figure:
a fire hydrant body-1; a water pressure detection device-2; a flow detection device-3;
a controller-4; a rotating disk-51; a threaded rod-52;
a valve stem-53; a receiving groove-531; a second abutment block-532; a drive shaft-541;
a worm gear-542; a first abutment block-543; a pressure spring-544;
a worm-55; a strip-shaped rotating port-551; a disc portion-511;
an annular transition portion-512; a spoke-513; first stage tank-5121;
second stage groove-5122; an annular stop block-5123; -521, a threaded portion;
a rotating portion-522; an annular spacing groove-5221; a limiting component-523;
a groove-5231; a turning block-5232; a tension spring-5233;
a horizontal portion-611; a vertical portion-612;
opening a wrench-7; a first opening portion-71; a second opening portion-72;
a semicircular portion-711; a first level block-712; second level blocks-713.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
As shown in fig. 1 to 8, the intelligent indoor fire hydrant system comprises a fire hydrant body 1, a water pressure detection device 2, a flow detection device 3, a controller 4 and a water theft prevention device, wherein the water pressure detection device 2, the flow detection device 3, the controller 4 and the water theft prevention device are all arranged on the fire hydrant body 1, the water pressure detection device 2 is connected with the controller 4 and used for detecting the water pressure inside the fire hydrant, the flow detection device 3 is connected with the controller 4 and used for detecting the flow inside the fire hydrant, and the water theft prevention device is arranged inside the fire hydrant body 1 and plays a role in preventing water theft.
After adopting above-mentioned structure, carry out real-time detection by water pressure detection device 2 and flow detection device 3 to discharge and the water pressure in the fire hydrant to know the whole condition of fire hydrant in real time, improve the efficiency of fire rescue. Moreover, the water stealing prevention device can prevent water resources in the fire hydrant from being stolen, and further guarantee is provided for fire extinguishing and rescue.
The water theft preventing device comprises a rotating disc 51, a threaded rod 52, an opening device, a valve rod 53 and a valve core (not shown), the rotating disc 51, the threaded rod 52, the opening device, the valve rod 53 and the valve core are sequentially arranged from top to bottom, a vertically arranged threaded hole (not shown) is formed in the fire hydrant body 1, one end of the threaded rod 52 penetrates through the threaded hole in a matched mode and then abuts against the opening device, and the other end of the threaded rod 52 is exposed out of the fire hydrant body 1 and is connected with the rotating disc 51. One end of the valve rod 53 is provided with a containing groove 531, the opening device is arranged in the containing groove 531 of the valve rod 53, and the other end of the valve rod 53 is connected with the valve core for opening the valve core.
Through rotating the rolling disc 51 for threaded rod 52 rotates, and the external screw thread on the threaded rod 52 and the internal thread cooperation on the fire hydrant body 1 realize the downward shift of threaded rod 52, and the threaded rod 52 that moves down supports to opening device to promote opening device move down and the cooperation of valve rod 53, the rethread opening device's rotation realizes the rotation of valve rod 53, thereby realizes the rotation of case.
Preferably, the opening device includes a driving rod 541, a worm wheel 542, a first abutting block 543, a pressure spring 544 and a worm 55, the driving rod 541 is vertically disposed under the threaded rod 52, the worm wheel 542 is horizontally disposed on the driving rod 541, the first abutting block 543 is disposed on the driving rod 541 and under the worm wheel 542, one end of the pressure spring 544 is connected to the lower end of the driving rod 541, the other end of the pressure spring 544 is connected to the bottom of the accommodating groove 531, the diameter of the accommodating groove 531 is greater than that of the driving rod 541, a second abutting block 532 used for cooperating with the first abutting block 543 is further disposed on the accommodating groove 531, and the worm 55 is horizontally disposed on the fire hydrant body 1. After the opening device adopts the above structure, the threaded rod 52 moves down to abut against the driving rod 541, so that the driving rod 541 moves down, the driving rod 541 drives the worm wheel 542 and the first abutting block 543 to move down and compress the pressure spring 544, the first abutting block 543 is matched with the second abutting block 532, and the first abutting block 543 and the second abutting block 532 are located on the same horizontal plane. When the worm 55 is moved to the vertical portion 612 and meshed with the worm wheel 542, the worm 55 is rotated, the worm 55 drives the worm wheel 542 to rotate, the worm wheel 542 drives the driving rod 541 to rotate, the first abutting block 543 is driven to rotate, the first abutting block 543 pushes the second abutting block 532 to rotate, and finally the valve rod 53 is rotated. The rotating valve stem 53 is used to open or close the valve cartridge.
Preferably, in order to enable the fire hydrant to play a further anti-theft role, the reasonable utilization of resources inside the fire hydrant is further ensured. The rotating disc 51 comprises a disc portion 511, an annular adapter portion 512 and a spoke portion 513, one end of the spoke portion 513 is connected with the annular adapter portion 512, the other end of the spoke portion 513 is connected with the disc portion 511, a first-stage groove 5121, a second-stage groove 5122 and an annular limiting block 5123 are arranged on the periphery of the annular adapter portion 512, the first-stage groove 5121 is horizontally extended from the outer peripheral surface of the annular adapter portion 512 to the inner peripheral surface, the second-stage groove 5122 is horizontally extended from the inner peripheral surface of the annular adapter portion 512 to the outer peripheral surface and is communicated with the first-stage groove 5121, the notch of the first-stage groove 5121 is larger than that of the second-stage groove 5122, and the annular limiting block 5123 is located at the bottom end of the annular adapter portion 512.
The threaded rod 52 comprises a threaded portion 521 and a rotating portion 522, the rotating portion 522 is located on the inner circumferential surface of the annular adapter 512 and is rotatably connected with the annular adapter 512, the rotating portion 522 is provided with an annular limiting groove 5221 and a limiting assembly 523, the annular limiting groove 5221 is arranged at the bottom end of the outer circumferential surface of the rotating portion 522 and is in matched connection with the annular limiting block 5123, and the threaded rod 52 and the rotating disc 51 are connected with each other and are in a rotating idle running state through the arrangement of the annular limiting groove 5221 and the annular limiting block 5123. The limiting component 523 comprises a groove 5231, a rotating block 5232 and a tension spring 5233, the groove 5231 is horizontally arranged on the outer peripheral surface of the rotating part 522 and corresponds to the first-stage groove 5121, the tension spring 5233 and the rotating block 5232 are both horizontally arranged in the groove 5231, one end of the tension spring 5233 is connected with the bottom of the groove 5231, the other end of the tension spring 5233 is connected with the rotating block 5232, and the rotating block 5232 is not exposed out of the groove 5231. After the structure is adopted, the threaded rod 52 cannot be driven to rotate when the rotating disc 51 is simply rotated, so that a further water theft prevention barrier is achieved. When the fire hydrant needs to be opened, the first opening part 71 of the opening wrench 7 covers the annular adapter part 512, and extends into the first-stage groove 5121 and the second-stage groove 5122 through the first-stage block 712 and the second-stage block 713 on the first opening part 71, so that the rotating block 5232 in the groove 5231 is adsorbed, and the rotating block 5232 pulls the tension spring 5233 and enters the second-stage groove 5122. Then, the disk portion 511 is rotated, so that the rotary block 5232 located between the annular adapting portion 512 and the threaded rod 52 functions as an intermediate bridge, the annular adapting portion 512 drives the rotary block 5232 to rotate, and the rotary block 5232 drives the rotary portion 522 of the threaded rod 52 to rotate, so as to drive the whole threaded rod 52 to rotate.
Preferably, the limit components 523 have four groups, each of the first-stage grooves 5121 and the second-stage grooves 5122 has four, and the four first-stage grooves 5121 and the four second-stage grooves 5122 are correspondingly matched with the four groups of limit components 523, so that reasonable stress of the annular transfer block is ensured, and reduction of the service life of the rotary block 5232 due to uneven stress is avoided.
Preferably, the fire hydrant body 1 is further provided with a worm adjusting through hole penetrating through the fire hydrant body 1, the worm 55 is horizontally arranged on the worm adjusting through hole, the worm adjusting through hole comprises a horizontal part 611 and a vertical part 612, the horizontal part 611 is horizontally arranged, the vertical part 612 is vertically arranged, the end part of the horizontal part 611 is connected with the end part of the vertical part 612, the horizontal height of the horizontal part 611 is higher than that of the vertical part 612, and the worm 55 is matched and abutted to the upper horizontal part 611 or the vertical part 612.
When the fire hydrant is not required to be opened or closed, the worm 55 is positioned at one end of the horizontal part 611 far away from the vertical part 612, and at the moment, the worm 55 is not meshed with the worm wheel 542; when the worm wheel 542 needs to be rotated, the worm 55 is moved to the vertical portion 612, the vertical portion 612 plays a limiting role on the worm 55, the worm 55 located on the vertical portion 612 is meshed with the worm wheel 542, at the moment, the worm 55 is rotated to drive the worm wheel 542 to rotate, further the driving rod 541 is driven to rotate, and the opening or closing operation of the fire hydrant is completed.
Preferably, the intelligent indoor fire hydrant system further comprises an opening wrench 7, the opening wrench 7 comprises a first opening part 71 and a second opening part 72, the first opening part 71 and the second opening part 72 are rotatably connected, two groups of the first opening parts 71 are provided, each of the two groups of the first opening parts 71 comprises a semicircular part 711, a first stage block 712 and a second stage block 713, the first stage block 712 is arranged on the inner circumferential surface of the semicircular part 711, the second stage block 713 is arranged on the first stage block 712, the first stage block 712 and the second stage block 713 are respectively matched with the first stage groove 5121 and the second stage groove 5122, the first stage block 712 and the second stage block 713 are both magnets, the first stage block 712 and the first stage groove 5121 are both in a hexagonal shape, and the second stage block 713 and the second stage groove 5122 are both in a triangular shape; the worm 55 is further provided with a strip-shaped rotating opening 551, and the second opening portion 72 is matched with the strip-shaped rotating opening 551.
When the fire hydrant needs to be opened, the annular adaptor is covered by the two first opening parts 71 on the opening wrench 7, and the first-stage block 712 and the second-stage block 713 on the first opening parts 71 extend into the first-stage groove 5121 and the second-stage groove 5122 to magnetically adsorb the rotating block 5232, so that the rotating block 5232 is sucked into the second-stage groove 5122, and then the rotating disc 51 rotates to drive the threaded rod 52 to rotate by the rotating disc 51. When the driving rod 541 is pushed by the threaded rod 52 to move downward, the first abutting block 543 and the second abutting block 532 are at the same horizontal plane. After the worm 55 is moved to the vertical portion 612 and meshed with the worm wheel 542, the second opening portion 72 on the opening wrench 7 rotates the worm 55, the rotating worm 55 drives the worm wheel 542 to rotate, and further drives the valve rod 53 to rotate, and the valve rod 53 drives the valve core to rotate, so that the fire hydrant is opened. When the fire hydrant needs to be closed, the worm 55 is only reversed, so that the valve rod 53 closes the valve core. The worm 55 is moved to the horizontal portion 611, and then the rotating disc 51 is rotated reversely under the cooperation of the opening wrench 7 to move the threaded rod 52 upward, so that the driving rod 541 moves upward under the elastic deformation of the compression spring 544, and the first abutting block 543 and the second abutting block 532 are no longer in the same horizontal plane, and the worm wheel 542 and the worm 55 are no longer meshed. The opening wrench 7 is removed and the turning block 5232 is moved into the recess 5231 by the action of the tension spring 5233, at which time turning the turning disc 51 will not rotate the threaded rod 52. Compared with the prior art, the water theft prevention structure greatly improves the water theft prevention performance of the fire hydrant and ensures the normal use of the fire hydrant.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (2)
1. An intelligent indoor fire hydrant system is characterized by comprising a fire hydrant body, a water pressure detection device, a flow detection device, a controller and a water theft prevention device, wherein the water pressure detection device, the flow detection device, the controller and the water theft prevention device are all arranged on the fire hydrant body, the water pressure detection device is connected with the controller and used for detecting water pressure inside the fire hydrant, the flow detection device is connected with the controller and used for detecting flow inside the fire hydrant, and the water theft prevention device is arranged inside the fire hydrant body to play a role in preventing water theft;
the water stealing prevention device comprises a rotating disc, a threaded rod, an opening device, a valve rod and a valve core, wherein the rotating disc, the threaded rod, the opening device, the valve rod and the valve core are sequentially arranged from top to bottom;
the opening device comprises a driving rod, a worm wheel, a first abutting block, a pressure spring and a worm, the driving rod is vertically arranged right below the threaded rod, the worm wheel is horizontally arranged on the driving rod, the first abutting block is arranged on the driving rod and located below the worm wheel, one end of the pressure spring is connected with the lower end of the driving rod, the other end of the pressure spring is connected with the bottom of a containing groove, the diameter of the containing groove is larger than that of the driving rod, a second abutting block matched with the first abutting block is further arranged on the containing groove, and the worm is horizontally arranged on the fire hydrant body;
the rotating disc comprises a disc part, an annular adapter part and a spoke part, one end of the spoke part is connected with the annular adapter part, the other end of the spoke part is connected with the disc part, a first-stage groove, a second-stage groove and an annular limiting block are arranged on the periphery of the annular adapter part, the first-stage groove horizontally extends from the outer peripheral surface of the annular adapter part to the inner peripheral surface, the second-stage groove is provided with an inner peripheral surface of the annular adapter part, the inner peripheral surface of the annular adapter part horizontally extends to the outer peripheral surface and is communicated with the first-stage groove, the notch of the first-stage groove is larger than that of the second-stage groove, and the annular limiting block is positioned at the bottom end of the; the threaded rod comprises a threaded portion and a rotating portion, the rotating portion is located on the inner peripheral surface of the annular adapter portion and is in rotating connection with the annular adapter portion, the rotating portion is provided with an annular limiting groove and a limiting assembly, the annular limiting groove is formed in the bottom end of the outer peripheral surface of the rotating portion and is connected with the annular limiting block in a matching mode, the limiting assembly comprises a groove, a rotating block and a tension spring, the groove is horizontally formed in the outer peripheral surface of the rotating portion and corresponds to the first-stage groove, the tension spring and the rotating block are horizontally arranged in the groove, one end of the tension spring is connected with the bottom of the groove, the other end of the tension spring is connected with the rotating block, and the rotating block;
the four first-stage grooves and the four second-stage grooves are correspondingly matched with the four limiting assemblies, and the notches of the first-stage grooves are larger than those of the second-stage grooves;
still be equipped with the worm that runs through the fire hydrant body on the fire hydrant body and adjust the opening, the worm level is established on the worm adjusts the opening, the worm is adjusted the opening and is included horizontal part and vertical portion, the horizontal part level sets up, the vertical setting of vertical portion, the tip of horizontal part and the end connection of vertical portion and the level of horizontal part are higher than vertical portion, the worm matches to butt on horizontal part or vertical portion.
2. The intelligent indoor fire hydrant system according to claim 1, further comprising an opening wrench, wherein the opening wrench comprises a first opening portion and a second opening portion, the first opening portion and the second opening portion are rotatably connected, two sets of the first opening portion are provided, each set of the first opening portion comprises a semicircular portion, a first stage block and a second stage block, the first stage block is arranged on an inner circumferential surface of the semicircular portion, the second stage block is arranged on the first stage block, the first stage block and the second stage block are respectively matched with the first stage groove and the second stage groove, and the first stage block and the second stage block are both magnets; the worm is further provided with a strip-shaped rotating opening, and the second opening portion is matched with the strip-shaped rotating opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570251.8A CN109621269B (en) | 2018-12-21 | 2018-12-21 | Intelligent indoor fire hydrant system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570251.8A CN109621269B (en) | 2018-12-21 | 2018-12-21 | Intelligent indoor fire hydrant system |
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| CN109621269A CN109621269A (en) | 2019-04-16 |
| CN109621269B true CN109621269B (en) | 2021-03-30 |
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| CN201811570251.8A Active CN109621269B (en) | 2018-12-21 | 2018-12-21 | Intelligent indoor fire hydrant system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219339A (en) * | 2019-04-18 | 2019-09-10 | 安耐特消防装备有限公司 | It is a kind of can solar recharging intelligent fire hydrant |
| CN110947146B (en) * | 2019-12-11 | 2021-05-07 | 海南合丰运维科技有限公司 | Fire hydrant water stealing prevention device based on pressure detection |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201223661Y (en) * | 2008-06-04 | 2009-04-22 | 建盈(广州番禺)塑料五金实业有限公司 | Novel fire plug valve cover |
| CA3177996A1 (en) * | 2010-06-16 | 2011-12-22 | Mueller International, Llc | Infrastructure monitoring devices, systems, and methods |
| CN203447679U (en) * | 2013-09-11 | 2014-02-26 | 刘荣山 | Fire hydrant state detection device |
| CN204739309U (en) * | 2015-06-19 | 2015-11-04 | 天虹阀门科技（泉州）有限公司 | Theftproof fire hydrant |
| CN205226600U (en) * | 2015-11-12 | 2016-05-11 | 屈礼平 | Fire hydrant valve lock |
| CN205182051U (en) * | 2015-12-08 | 2016-04-27 | 四川川力智能阀业有限公司 | Theftproof type fire hydrant is opened and close to magnetic force |
| CN207880174U (en) * | 2018-02-09 | 2018-09-18 | 福建泉州闽弘消防设备有限公司 | Anti-theft type post fire hydrant |
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