CN112741978B - Fire hydrant monitoring and management system - Google Patents
Fire hydrant monitoring and management system Download PDFInfo
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- CN112741978B CN112741978B CN202011641889.3A CN202011641889A CN112741978B CN 112741978 B CN112741978 B CN 112741978B CN 202011641889 A CN202011641889 A CN 202011641889A CN 112741978 B CN112741978 B CN 112741978B
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- cover body
- guide rod
- wireless communication
- fire hydrant
- electronic tag
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
- G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device
- G06K17/0029—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisious for transferring data to distant stations, e.g. from a sensing device the arrangement being specially adapted for wireless interrogation of grouped or bundled articles tagged with wireless record carriers
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Computer Networks & Wireless Communication (AREA)
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
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- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a fire hydrant monitoring and management system which comprises a first cover body, a second cover body, a wireless communication module and a lug, wherein a lead seal penetrates through a thread hole formed in the lug, so that the lead seal connection of the first cover body and the second cover body is realized, non-specialized persons are prevented from being detached randomly, the wireless communication module is arranged and is sent to Zigbee wireless communication transceiving equipment special for fire hydrant monitoring and management, or the Zigbee wireless communication transceiving equipment is sent to a fire fighting worker through 4G and 5G wireless communication modules for recording, or after an active RFID electronic tag is awakened wirelessly by a wireless ultrahigh frequency electronic tag reader-writer handheld by a fire fighting worker who inspects the product on site, the active RFID electronic tag is sent to a wireless ultrahigh frequency electronic tag reader-writer handheld by the fire fighting worker who inspects the product on site for storage, information acquisition is rapid and comprehensive, the fire fighting worker can conveniently implement corresponding decision and management, and operation is simple.
Description
Technical Field
The invention relates to the technical field of monitoring, in particular to a fire hydrant monitoring and managing system.
Background
A fire hydrant, called fire hydrant formally, is a fixed fire-fighting equipment, mainly used for controlling combustible substances, isolating combustion-supporting substances and eliminating ignition sources. It is divided into indoor fire hydrant and outdoor fire hydrant. The fire extinguishing system comprises an outdoor fire hydrant system, an indoor fire hydrant system and a fire extinguisher system, and some fire extinguishing systems also comprise an automatic spraying system, a water cannon system, a gas fire extinguishing system, a fire detection system, a water mist system and the like. The fire hydrant suit is generally formed by combining a fire box, a fire hose, a water gun, a connecting buckle, a bolt, a clamp and the like, the fire hydrant is mainly used for a fire truck to take water from a municipal water supply network or an outdoor fire-fighting water supply network to put out a fire, and the fire hydrant can also be directly connected with the water hose and the water gun to discharge water to put out a fire. Therefore, indoor and outdoor fire hydrant systems are also one of the important fire fighting devices for fighting fires.
At present, when monitoring and managing fire hydrants, fire hydrant information acquisition operation is complex, and operators cannot implement corresponding decision and management according to the information.
Disclosure of Invention
The present invention is directed to a fire hydrant monitoring and management system, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme:
a fire hydrant monitoring and managing system comprises a pipe body, wherein a first cover body and a second cover body are sleeved on the outer side of the pipe body, a wireless communication module, a temperature sensor, an active RFID electronic tag, a microprocessor and a rechargeable lithium battery are fixedly mounted on the inner wall of the second cover body, a charging socket is formed in the outer side of the second cover body and electrically connected with the rechargeable lithium battery through a wire, a first transverse plate is arranged inside the second cover body, a pressure sensor is fixedly mounted on one side of the first transverse plate, a through hole for the pressure sensor to pass through is formed in the second cover body, a first guide rod and a second guide rod are symmetrically arranged on the first transverse plate in a penetrating manner, the two ends of the first guide rod and the two ends of the second guide rod are respectively and fixedly connected to the two sides of the inner wall of the second cover body, and through holes for the first guide rod and the second guide rod to pass through are respectively formed in the first transverse plate, a first spring and a second spring are arranged between the inner side of the first transverse plate and one side of the inner wall of the second cover body, the first spring is sleeved on the outer side of the first guide rod, the second spring is sleeved on the outer side of the second guide rod, a second transverse plate is arranged in the second cover body, an ultrasonic flow sensor is fixedly arranged on one side of the second transverse plate, a through hole for the ultrasonic flow sensor to pass through is formed in the second cover body, a third guide rod and a fourth guide rod are symmetrically arranged on the second transverse plate in a penetrating manner, two ends of the third guide rod and two ends of the fourth guide rod are respectively and fixedly connected to two sides of the inner wall of the second cover body, through holes for the third guide rod and the fourth guide rod to pass through are respectively formed in the second transverse plate, and a third spring and a fourth spring are arranged between the inner side of the second transverse plate and one side of the inner wall of the second cover body, the third spring sleeve is established in the third guide bar outside, the fourth spring sleeve is established in the fourth guide bar outside, body inner wall fixed mounting has the waterproof water pressure sensor.
As a further scheme of the invention: the first cover body and the second cover body are semicircular cover bodies with the same radius, the two sides of the first cover body and the two sides of the second cover body are fixedly connected with lugs, and the lugs, the first cover body and the second cover body are made of the same material and are designed in an integrated mode.
As a still further scheme of the invention: the lug is provided with a through hole for the locking bolt to pass through, and the lug is provided with a threading hole for the lead seal to pass through.
As a still further scheme of the invention: the wireless communication module, the temperature sensor, the active RFID radio frequency identification electronic tag, the waterproof water pressure sensor, the pressure sensor and the ultrasonic flow sensor are respectively and electrically connected with the microprocessor through leads.
As a still further scheme of the invention: the pipe body is provided with a through hole for the lead to pass through, and the lead and the through hole are statically sealed.
As a still further scheme of the invention: the wireless communication module, the temperature sensor, the active RFID radio frequency identification electronic tag, the microprocessor, the waterproof water pressure sensor, the pressure sensor and the ultrasonic flow sensor are respectively and electrically connected with the rechargeable lithium battery through leads.
Compared with the prior art, the invention has the beneficial effects that:
1. the first cover body and the second cover body are sleeved on the outer side of the pipe body, a locking bolt penetrates through a through hole formed in the protruding block and further a nut rotates on the locking bolt, so that the first cover body and the second cover body are fixed on the outer side of the pipe body, a lead seal penetrates through a threading hole formed in the protruding block, and therefore lead seal connection of the first cover body and the second cover body is achieved, and non-specialized persons are prevented from being dismounted randomly;
2. after the first cover body and the second cover body are installed, the pressure sensor is attached to the outer side of the pipe body and extruded, if the sensed extrusion stress is obviously reduced, an alarm signal is sent to the microprocessor, and the situation that the whole machine is randomly disassembled or damaged is indicated;
3. the ultrasonic flow sensor can be used for carrying out non-contact measurement on the water flow and the flow velocity flowing through the water supply pipe by the aid of an ultrasonic principle, the wireless communication module is arranged to send the water flow and the flow velocity to Zigbee wireless communication transceiving equipment special for fire hydrant monitoring management, or the water flow and the flow velocity are sent to a mobile phone record of a fire-fighting work manager through the 4G and 5G wireless communication modules, or the water flow and the flow velocity are stored on a wireless ultrahigh frequency electronic tag reader-writer handheld by the fire-fighting work manager for field inspection of the patent product after an active RFID electronic tag is awakened by a wireless ultrahigh frequency electronic tag reader-writer handheld by the fire-fighting work manager for field inspection of the patent product, information can be acquired quickly and comprehensively, corresponding decision and management can be conveniently carried out by the fire-fighting work manager, and the operation is simple.
Drawings
Fig. 1 is a schematic structural diagram of a fire hydrant monitoring and management system.
Fig. 2 is a front view of a fire hydrant monitoring and management system.
Fig. 3 is a schematic structural diagram of a fire hydrant monitoring and managing system at a.
Fig. 4 is a schematic structural diagram of a position B in the fire hydrant monitoring and managing system.
Fig. 5 is a circuit block diagram of a fire hydrant monitoring and management system.
Shown in the figure: the waterproof and waterproof electronic tag comprises a convex block 1, a locking bolt 2, a wireless communication module 3, an active RFID (radio frequency identification) electronic tag 4, a microprocessor 5, a rechargeable lithium battery 6, a waterproof water pressure sensor 7, a pipe body 8, a first cover body 9, a threading hole 10, a second cover body 11, a charging socket 12, a first mounting plate 13, a pressure sensor 14, a first guide rod 15, a first spring 16, a second spring 17, a second guide rod 18, a second transverse plate 19, a third spring 20, a third guide rod 21, an ultrasonic flow sensor 22, a fourth spring 23, a fourth guide rod 24 and a temperature sensor 25.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1 to 5, in an embodiment of the present invention, a fire hydrant monitoring and management system includes a bump 1, a locking bolt 2, a wireless communication module 3, an active RFID tag 4, a microprocessor 5, a rechargeable lithium battery 6, a waterproof pressure sensor 7, a pipe body 8, a first cover body 9, a threading hole 10, a second cover body 11, a charging socket 12, a first mounting plate 13, a pressure sensor 14, a first guide rod 15, a first spring 16, a second spring 17, a second guide rod 18, a second transverse plate 19, a third spring 20, a third guide rod 21, an ultrasonic flow sensor 22, a fourth spring 23, and a fourth guide rod 24, wherein the first cover body 9 and the second cover body 11 are sleeved outside the pipe body 8, the first cover body 9 and the second cover body 11 are semicircular cover bodies with the same radius, the bump 1 is fixedly connected to both sides of the first cover body 9 and the second cover body 11, the lug 1 is made of the same material as the first cover body 9 and the second cover body 11 and is designed as an integral body, a through hole for the locking bolt 2 to pass through is formed in the lug 1, a threading hole 10 for lead sealing to pass through is formed in the lug 1, a wireless communication module 3, a temperature sensor 25, an active RFID radio frequency identification electronic tag 4, a microprocessor 5 and a rechargeable lithium battery 6 are fixedly mounted on the inner wall of the second cover body 11, a charging socket 12 is formed in the outer side of the second cover body 11, the charging socket 12 is electrically connected with the rechargeable lithium battery 6 through a wire, a first transverse plate 13 is arranged inside the second cover body 11, a pressure sensor 14 is fixedly mounted on one side of the first transverse plate 13, a through hole for the pressure sensor 14 to pass through is formed in the second cover body 11, and a first guide rod 15 and a second guide rod 18 are symmetrically arranged on the first transverse plate 13 in a penetrating manner, the two ends of the first guide rod 15 and the two ends of the second guide rod 18 are respectively and fixedly connected to two sides of the inner wall of the second cover body 11, through holes for the first guide rod 15 and the second guide rod 18 to pass through are respectively formed in the first transverse plate 13, a first spring 16 and a second spring 17 are arranged between the inner side of the first transverse plate 13 and one side of the inner wall of the second cover body 11, the first spring 16 is sleeved on the outer side of the first guide rod 15, the second spring 17 is sleeved on the outer side of the second guide rod 18, a second transverse plate 19 is arranged in the second cover body 11, an ultrasonic flow sensor 22 is fixedly arranged on one side of the second transverse plate 19, a through hole for the ultrasonic flow sensor 22 to pass through is formed in the second cover body 11, a third guide rod 21 and a fourth guide rod 24 are symmetrically arranged on the second transverse plate 19 in a penetrating manner, two ends of the third guide rod 21 and two ends of the fourth guide rod 24 are respectively and fixedly connected to two sides of the inner wall of the second cover body 11, a through hole for a third guide rod 21 and a fourth guide rod 24 to pass through is respectively formed in the second transverse plate 19, a third spring 20 and a fourth spring 23 are arranged between the inner side of the second transverse plate 19 and one side of the inner wall of the second cover body 11, the third spring 20 is sleeved on the outer side of the third guide rod 21, the fourth spring 23 is sleeved on the outer side of the fourth guide rod 24, a waterproof water pressure sensor 7 is fixedly arranged on the inner wall of the pipe body 8, the microprocessor 5 is commercially available in a type of STM32F303CCT6 and is produced by an Italian Semiconductor (ST) group, the wireless communication module 3 is a Zigbee wireless communication module (specifically named Digi XBee PRO S2C and also named Zigbee wireless data transmission module and is commercially available in a type of XBP24 CZ-004 and produced by DIGI company in America, and the communication distance can reach 1.2-3.2km in an open range and/or the wireless communication module RIS can reach 1.2-3.2km in an open range A 4G wireless communication module (SIM 7600X-H manufactured and marketed by Simcom, shanghai) or a 5G wireless communication module (SIM 8200G manufactured and marketed by Simcom, shanghai) and marketed by Simcom, the waterproof water pressure sensor 7 is MIK-P300 manufactured and marketed by Hangzhou American automatic technology, inc, the ultrasonic flow sensor 22 is MIK-2000H manufactured and marketed by Hangzhou Mike sensor technology, inc, the temperature sensor 25 is a precision NTC CWF series manufactured and marketed by Hemike electronics, inc, chi, south China, the pressure sensor 14 is DJWX-09, the wireless communication module 3, the temperature sensor 25, the active RFID electronic tag 4, the waterproof water pressure sensor 7, the pressure sensor 14 and the ultrasonic flow sensor 22 are respectively and electrically connected with the microprocessor 5 through wires, a through hole for the wires to pass through is formed in the tube body 8, the wires and the through hole are statically sealed, water in the tube body 8 is prevented from overflowing from the through hole, and the wireless communication module 3, the temperature sensor 25, the active RFID electronic tag 4, the microprocessor 5, the waterproof water pressure sensor 7, the pressure sensor 14 and the ultrasonic flow sensor 22 are respectively and electrically connected with the rechargeable lithium battery 6 through wires.
The working principle of the invention is as follows:
when the device is required to be used, the first cover body 9 and the second cover body 11 are sleeved on the outer side of the pipe body 8, the locking bolt 2 is further utilized to penetrate through a through hole formed in the lug 1 and further the nut is utilized to rotate on the locking bolt 2, so that the first cover body 9 and the second cover body 11 are fixed on the outer side of the pipe body 8, the lead seal is further utilized to penetrate through a threading hole 10 formed in the lug 1, so that the lead seal connection of the first cover body 9 and the second cover body 11 is realized, a non-specialized person is prevented from being dismounted randomly, after the first cover body 9 and the second cover body 11 are mounted, the pressure sensor 14 is attached to the outer side of the pipe body 8 for extrusion, if the sensed extrusion stress is obviously reduced, an alarm signal is sent to the microprocessor 5, which indicates that the whole device is dismounted randomly or surrounded by a water supply pipe, and the ultrasonic flow sensor 22 is arranged to carry out non-contact measurement on the flow rate and the flow velocity of water flowing through the broken water body through the ultrasonic principle, the wireless communication module 3 is arranged to be sent to Zigbee wireless communication transceiving equipment special for fire hydrant monitoring management, or the Zigbee wireless communication transceiving equipment is sent to a mobile phone record of a fire fighting staff manager through the 4G and 5G wireless communication modules, or after the active RFID electronic tag 4 is wirelessly awakened by a wireless ultrahigh frequency electronic tag reader (which is sold in the market by Naken, rui Fengde technology Limited and has the model of i 6310C-030) held by the fire fighting staff manager for on-site examination of the product, the information is passively sent to the wireless ultrahigh frequency electronic tag reader (which is sold in the market by Naken, rui Fengde technology Limited and has the model of i 6310C-030) held by the fire fighting staff manager for on-site examination of the product through the active RFID electronic tag, the information is rapidly and comprehensively acquired, and the corresponding decision and management and protection are conveniently implemented by the fire fighting staff manager, the operation is simple.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. An application method of a fire hydrant monitoring and management system is used for constructing the fire hydrant monitoring and management system, and the structure of the fire hydrant monitoring and management system is as follows: the portable temperature and humidity sensor comprises a pipe body (8), wherein a first cover body (9) and a second cover body (11) are sleeved on the outer side of the pipe body (8), a wireless communication module (3), a temperature sensor (25), an active RFID (radio frequency identification) electronic tag (4), a microprocessor (5) and a rechargeable lithium battery (6) are fixedly arranged on the inner wall of the second cover body (11), a charging socket (12) is arranged on the outer side of the second cover body (11), the charging socket (12) is electrically connected with the rechargeable lithium battery (6) through a wire, a first transverse plate (13) is arranged inside the second cover body (11), a pressure sensor (14) is fixedly arranged on one side of the first transverse plate (13), a through hole for the pressure sensor (14) to pass through is formed in the second cover body (11), a first guide rod (15) and a second guide rod (18) are symmetrically arranged on the first transverse plate (13) in a penetrating manner, two ends of the first guide rod (15) and two ends of the second guide rod (18) are respectively and fixedly connected to two inner walls of the second cover body (11), a second transverse plate (13) is respectively, a second spring (16) and a second spring is arranged on one side of the first transverse plate (13), the first spring (16) is sleeved on the outer side of the first guide rod (15), the second spring (17) is sleeved on the outer side of the second guide rod (18), a second transverse plate (19) is arranged inside the second cover body (11), an ultrasonic flow sensor (22) is fixedly installed on one side of the second transverse plate (19), a through hole for the ultrasonic flow sensor (22) to pass through is formed in the second cover body (11), a third guide rod (21) and a fourth guide rod (24) are symmetrically arranged on the second transverse plate (19) in a penetrating mode, two ends of the third guide rod (21) and two ends of the fourth guide rod (24) are respectively and fixedly connected to two sides of the inner wall of the second cover body (11), through holes for the third guide rod (21) and the fourth guide rod (24) to pass through are respectively formed in the second transverse plate (19), a third spring (20) and a fourth spring (23) are arranged between the inner side of the second transverse plate (19) and one side of the inner wall of the second cover body (11), the third spring (20) is sleeved on the outer side of the second guide rod (21), a water pressure fixing block (7) is connected with a water pressure fixing block (9), and a water pressure fixing block (7) is connected with a water-proof bump (8), the wireless communication module (3), the temperature sensor (25), the active RFID radio frequency identification electronic tag (4), the waterproof water pressure sensor (7), the pressure sensor (14) and the ultrasonic flow sensor (22) are respectively and electrically connected with the microprocessor (5) through leads; the method is characterized in that:
the first cover body (9) and the second cover body (11) are sleeved on the outer side of the pipe body (8), the locking bolt (2) is further utilized to penetrate through a through hole formed in the bump (1) and further the nut is utilized to rotate on the locking bolt (2), so that the first cover body (9) and the second cover body (11) are fixed on the outer side of the pipe body (8), the lead seal is further utilized to penetrate through a threading hole (10) formed in the bump (1), so that the lead seal connection of the first cover body (9) and the second cover body (11) is realized, the non-specialized pipe personnel is prevented from being detached randomly, after the first cover body (9) and the second cover body (11) are installed, the pressure sensor (14) is attached and extruded on the outer side of the pipe body (8), if the sensed extrusion stress is obviously reduced, an alarm signal is sent to the microprocessor (5), the situation that the whole machine is randomly disassembled or damaged is shown, an ultrasonic flow sensor (22) is arranged to carry out non-contact measurement on the flow and the flow speed of water flowing through a water supply pipe through the ultrasonic principle, a wireless communication module (3) is arranged to send to Zigbee wireless communication transceiving equipment special for fire hydrant monitoring management, or the Zigbee wireless communication transceiving equipment is sent to a mobile phone record of a fire fighting worker through a 4G or 5G wireless communication module, or after an active RFID electronic tag (4) is awakened by a wireless ultrahigh frequency electronic tag reader-writer handheld by the fire fighting worker who checks the fire hydrant monitoring management system on site, the Zigbee wireless communication transceiving equipment is passively sent to a fire fighting worker who checks the fire hydrant monitoring management system on site through the active RFID electronic tag through the wireless communication module, and the Zigbee wireless communication module is passively sent to the handheld electronic tag of the fire fighting worker who checks the fire hydrant monitoring management system on site through the active RFID electronic tag The wireless ultrahigh frequency electronic tag reader-writer is used for storing.
2. A method of using a fire hydrant monitoring and management system according to claim 1, wherein: the first cover body (9) and the second cover body (11) are semicircular cover bodies with the same radius, and the lug (1), the first cover body (9) and the second cover body (11) are made of the same material and are designed to be integrally formed.
3. A method of using a fire hydrant monitoring and management system according to claim 2, comprising: the lead sealing device is characterized in that a through hole for the locking bolt (2) to pass through is formed in the bump (1), and a threading hole (10) for the lead sealing to pass through is formed in the bump (1).
4. A method of using a fire hydrant monitoring and management system according to claim 1, comprising: and a through hole for the lead to pass through is formed in the pipe body (8), and the lead and the through hole are statically sealed.
5. A method of using a fire hydrant monitoring and management system according to claim 1, comprising: the wireless communication module (3), the temperature sensor (25), the active RFID electronic tag (4), the microprocessor (5), the waterproof water pressure sensor (7), the pressure sensor (14) and the ultrasonic flow sensor (22) are electrically connected with the rechargeable lithium battery (6) through leads respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641889.3A CN112741978B (en) | 2020-12-31 | 2020-12-31 | Fire hydrant monitoring and management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641889.3A CN112741978B (en) | 2020-12-31 | 2020-12-31 | Fire hydrant monitoring and management system |
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| Publication Number | Publication Date |
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| CN112741978A CN112741978A (en) | 2021-05-04 |
| CN112741978B true CN112741978B (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011641889.3A Active CN112741978B (en) | 2020-12-31 | 2020-12-31 | Fire hydrant monitoring and management system |
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| CN (1) | CN112741978B (en) |
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| CN105625514A (en) * | 2016-03-16 | 2016-06-01 | 上海伟梦物联网科技有限公司 | Intelligent fire hydrant device |
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| CN210827683U (en) * | 2019-09-26 | 2020-06-23 | 惠州市恒泰富复合材料有限公司 | Novel fire hydrant |
| CN210933548U (en) * | 2019-05-13 | 2020-07-07 | 成都川力智能流体设备股份有限公司 | Intelligent fire hydrant and control system thereof |
| CN211602020U (en) * | 2020-03-16 | 2020-09-29 | 阳江核电有限公司 | Fire test data acquisition device for nuclear power plant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3035498B1 (en) * | 2015-04-23 | 2020-04-24 | Integra Metering Sas | FLOW METER FOR MEASURING A FLUID FLOW RATE OUTSIDE A TUBULAR BODY AND VALVE INCORPORATING IT |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499701A (en) * | 2015-09-07 | 2017-03-15 | 天津嘉泰盈顺健身器材有限公司 | A kind of steel pipe with anticreep alarm device is buckled |
| CN105625514A (en) * | 2016-03-16 | 2016-06-01 | 上海伟梦物联网科技有限公司 | Intelligent fire hydrant device |
| CN207291663U (en) * | 2017-10-30 | 2018-05-01 | 李小风 | A kind of vehicle security device for fuel tank |
| CN209645739U (en) * | 2019-02-01 | 2019-11-19 | 威特龙消防安全集团股份公司 | A kind of indoor fire hydrant intelligent end device |
| CN210933548U (en) * | 2019-05-13 | 2020-07-07 | 成都川力智能流体设备股份有限公司 | Intelligent fire hydrant and control system thereof |
| CN210827683U (en) * | 2019-09-26 | 2020-06-23 | 惠州市恒泰富复合材料有限公司 | Novel fire hydrant |
| CN211602020U (en) * | 2020-03-16 | 2020-09-29 | 阳江核电有限公司 | Fire test data acquisition device for nuclear power plant |
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| Publication number | Publication date |
|---|---|
| CN112741978A (en) | 2021-05-04 |
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