CN112482501A - Outdoor fire hydrant for fire fighting - Google Patents
Outdoor fire hydrant for fire fighting Download PDFInfo
- Publication number
- CN112482501A CN112482501A CN202011219975.5A CN202011219975A CN112482501A CN 112482501 A CN112482501 A CN 112482501A CN 202011219975 A CN202011219975 A CN 202011219975A CN 112482501 A CN112482501 A CN 112482501A
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- fire
- pipeline
- fire fighting
- water
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/08—Underground hydrants
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/08—Underground hydrants
- E03B9/10—Protective plates or covers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B9/00—Methods or installations for drawing-off water
- E03B9/02—Hydrants; Arrangements of valves therein; Keys for hydrants
- E03B9/08—Underground hydrants
- E03B9/12—Stand-pipes
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to the related technical field of fire fighting equipment and discloses an outdoor fire hydrant for fire fighting, which comprises a sewer pipeline and a fire fighting pipeline, wherein a well cover movably installed through a hinge is arranged on one side of the top of the sewer pipeline, a water outlet pipeline is arranged at the top of the fire fighting pipeline, an adjusting gear is movably installed at the top of the fire fighting pipeline, and an adjusting hole used for opening and closing the fire fighting pipeline is formed in the surface of the adjusting gear. The fire fighting pipeline is arranged in the inner cavity of the sewer pipe, the protective shell slides on the fire fighting pipeline, and the medium in the fire fighting pipeline flows into the inner cavity of the protective shell, so that the water outlet pipeline can be lifted, water can be taken out by ejecting the water outlet pipeline when a water source is needed, the water outlet pipeline falls to hide the water, the fire fighting pipeline is arranged in the well cover, the fire fighting pipeline can be protected by the well cover, the floor area of the fire fighting pipeline is reduced, and the purpose of hiding is finally achieved.
Description
Technical Field
The invention relates to the related technical field of fire fighting equipment, in particular to an outdoor fire hydrant for fire fighting.
Background
The fire hydrant is a fire-fighting device with fixed position, mainly used for controlling combustible material, isolating combustion-supporting material and eliminating fire source, and is divided into two kinds, outdoor and indoor.
The existing outdoor fire hydrant is mainly fixed to the road edge and the like and is communicated with a fire hose on the ground, so that when a fire disaster and other demands happen, a fire fighter switches on an external hose and opens a valve of the fire hydrant, and then a water medium required for fire extinguishment is provided.
Although current fire hydrant has the lead screw to make the fire hydrant realize falling when not using and hide, though can reduce its expose with the outside potential safety hazard that causes the pedestrian, but in actual use, still need the prerequisite to take out it, the time that the fire hydrant took out has been increased, and, its hidden fire hydrant function singleness, and then the cost of its manufacturing of great increase, simultaneously, hide in ground through its fire hydrant, still need reserve the required depth of operation of fire hydrant again on the ground, the area of its occupation of land of great increase.
The existing fire hydrant needs a fireman to open the fire hydrant through a special wrench, so that when a fire disaster occurs, non-working personnel cannot use a water source in the fire hydrant quickly, and further the fire disaster self-rescue is not timely.
Disclosure of Invention
Aiming at the defects of the existing outdoor fire hydrant in the background technology in the using process, the invention provides the outdoor fire hydrant for fire fighting, which has the advantages of hiding, quickly taking water and increasing the ponding discharge rate of a well cover, and solves the technical problems in the background technology.
The invention provides the following technical scheme: an outdoor fire hydrant for fire fighting comprises a sewer pipeline and a fire fighting pipeline, wherein a well cover movably installed through a hinge is arranged on one side of the top of the sewer pipeline, a water outlet pipeline is arranged at the top of the fire fighting pipeline, an adjusting gear is movably installed at the top of the fire fighting pipeline, an adjusting hole used for opening and closing the fire fighting pipeline is formed in the surface of the adjusting gear, a driving gear meshed with the outer teeth of the adjusting gear is movably installed on one side of the top of the fire fighting pipeline, a driving plate is movably installed on the inner wall of the driving gear, a driving spring located in the inner cavity of the driving gear is fixedly installed on the surface of the driving plate, a transmission rod is fixedly installed at the top of the driving spring and movably sleeved with the driving gear, a protective shell is movably installed on the side of the fire fighting, the lateral wall fixed mounting of protective housing has the communicating outlet conduit with the protective housing inner chamber, and the top of transfer line runs through the protective housing and fixed mounting has the drive flabellum that is located the protective housing top, the lateral wall bottom of protective housing is seted up and is used for leaking the hole with its protective housing inner chamber medium exhaust.
Preferably, one side of the bottom of the driving plate is fixedly connected with a dead lock rod, the top of the fire pipeline is provided with a limit groove matched with the dead lock rod, and the top of the protective shell is provided with a water collecting plate used for guiding water.
Preferably, the transmission rod is a combined rod of a cylinder and a cuboid, the cylinder at the top of the transmission rod is movably mounted with the top of the protective shell, and the top end of the cylinder at the top of the transmission rod is provided with a round angle.
Preferably, the fire-fighting pipeline is provided with a limit groove with a circumference matched with the locking rod, and the depth of the limit groove is two centimeters.
Preferably, the water collection sheet is crescent in shape, an oblique angle is arranged on the inner side of the water collection sheet, and the height value of the water collection sheet is one to five times of the height value of the driving fan blades.
Preferably, the gear diameter value of the regulating gear is 4-5 times that of the driving gear.
The invention has the following beneficial effects:
1. the fire fighting pipeline is arranged in the inner cavity of the sewer pipe, the protective shell slides on the fire fighting pipeline, and the medium in the fire fighting pipeline flows into the inner cavity of the protective shell, so that the water outlet pipeline can be lifted, water can be taken out by ejecting the water outlet pipeline when a water source is needed, the water outlet pipeline falls to hide the water, the fire fighting pipeline is arranged in the well cover, the fire fighting pipeline can be protected by the well cover, the floor area of the fire fighting pipeline is reduced, and the purpose of hiding is finally achieved.
2. According to the invention, the adjusting gear is provided with the adjusting hole, the fire fighting pipeline is opened and closed by the rotation of the adjusting gear, meanwhile, the driving gear is meshed with the adjusting gear in an external tooth manner, and the driving fan blade is installed through the rotating shaft of the driving gear through the transmission rod, so that when water needs to be taken, the driving fan blade is driven by manual rotation to drive the adjusting gear to be opened in a labor-saving manner, further, the medium in the fire fighting pipeline flows to the inner cavity of the protective shell, the water outlet pipeline is lifted, and finally, the aim of conveniently and rapidly taking water is achieved.
3. According to the invention, the driving spring is arranged in the inner cavity of the driving gear, so that after the well cover is closed, the well cover can cause the driving spring to be compressed through the transmission rod, then when rainwater on the surface of the well cover is excessive, the driving fan blades are pushed to rotate through the rainwater flowing through the well cover, the driving fan blades drive the transmission rod to rotate to slightly open the adjusting hole, the water in the fire fighting pipeline flows into the protective shell, the well cover is opened through ejection of the protective shell, and further the circulation of the rainwater on the road surface is increased, meanwhile, when the rainwater on the well cover flows slowly, the adjusting gear is closed through self recovery of the compressed driving spring, so that the water in the protective shell is reduced due to water shortage, and finally the accumulated water discharge rate of the well cover is increased.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial schematic view of the structure of the present invention;
FIG. 3 is an enlarged view of the point A in FIG. 2;
FIG. 4 is a schematic view of a water collection sheet according to the present invention;
FIG. 5 is a schematic view of a fire conduit of the present invention.
In the figure: 1. a sewer pipeline; 2. a fire conduit; 3. a well cover; 4. a water outlet pipeline; 5. an adjusting gear; 50. an adjustment hole; 6. a drive gear; 7. a drive plate; 70. a locking lever; 8. a drive spring; 9. a transmission rod; 10. a protective shell; 11. driving the fan blades; 12. a water leakage hole; 13. a water collection plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an outdoor fire hydrant for fire fighting comprises a sewer pipe 1 and a fire fighting pipeline 2, a manhole cover 3 movably installed through a hinge is arranged on one side of the top of the sewer pipe 1, a water outlet pipe 4 is arranged on the top of the fire fighting pipeline 2, an adjusting gear 5 is movably installed on the top of the fire fighting pipeline 2, an adjusting hole 50 for opening and closing the fire fighting pipeline 2 is formed in the surface of the adjusting gear 5, a driving gear 6 meshed with the outer teeth of the adjusting gear 5 is movably installed on one side of the top of the fire fighting pipeline 2, a driving plate 7 is movably installed on the inner wall of the driving gear 6, a driving spring 8 located in the inner cavity of the driving gear 6 is fixedly installed on the surface of the driving plate 7, a driving rod 9 is fixedly installed on the top of the driving spring 8, the driving rod 9 is movably sleeved with the driving gear 6, a protective shell 10 is, the side wall of the protective shell 10 is fixedly provided with a water outlet pipeline 4 communicated with the inner cavity of the protective shell 10, the top of the transmission rod 9 penetrates through the protective shell 10 and is fixedly provided with a driving fan blade 11 positioned above the protective shell 10, the bottom of the side wall of the protective shell 10 is provided with a water leakage hole 12 for discharging a medium in the inner cavity of the protective shell 10, in order to achieve the hiding purpose, the side wall of the fire pipeline 2 is provided with the protective shell 10 capable of sliding up and down, meanwhile, the protective shell 10 is arranged at the bottom of the well cover 3, in the using process, the medium in the fire pipeline 2 is introduced into the inner cavity of the protective shell 10, so that the inner cavity of the protective shell 10 is increased and reduced by water flow to realize rising and falling, and further, the hiding phenomenon under the condition is realized, meanwhile, the protective shell 10 is arranged in the sewer pipeline 1, so that the space required by installing the, moreover, the protective shell 10 can be protected to a certain extent through the well lid 3, so that the manufacturing cost required by the protective shell 10 is greatly reduced, and the purpose of hiding is finally achieved.
Wherein, one side of bottom of the drive plate 7 is fixedly connected with the locking rod 70, and the top of the fire fighting pipeline 2 is provided with a limit groove matched with the locking rod 70, the top of the protective shell 10 is provided with a water collecting plate 13 for guiding water, in order to increase the ponding discharge rate of the well cover 3, therefore, the inner cavity of the drive gear 6 is provided with the drive spring 8, and when water is normally taken, the drive spring 8 is opened to realize that the locking rod 70 on the drive plate 7 is quickly separated from the limit groove on the fire fighting pipeline 2, and further, when the drive gear 6 is driven by the drive rod 9 to cause the adjusting gear 5 to synchronously rotate, the drive spring 8 can not influence the rotation, meanwhile, when the locking rod 70 is blocked in the limit groove, the drive gear 6 can be rotated by the drive rod 9, the drive spring 8 not only receives vertical compression force, but also receives torsional force from rotation, therefore when its load is removed, can make drive gear 6 reverse through the self-resuming of drive spring 8, therefore after protective housing 10 ejecting well lid 3 through the jack-up, its rivers flow out from the gap between well lid 3 and ground fast, when its rivers reduce, make fire-fighting pipeline 2 by the recovering of drive spring 8 cut off, finally reach the mesh that increases the ponding discharge rate of well lid 3.
The transmission rod 9 is a combined rod of a cylinder and a cuboid, the cylinder at the top of the transmission rod 9 is movably mounted with the top of the protective shell 10, a round angle is arranged at the top end of the cylinder at the top of the transmission rod 9, and in order to reduce the rotating resistance of the transmission rod 9 after the transmission rod 9 is contacted with the bottom of the well lid 3, the round angle is arranged at the top end of the transmission rod 9, and meanwhile, the cuboid is arranged at the lower part of the transmission rod 9, so that torque can be transmitted, and meanwhile, relative sliding can be carried out between the transmission rod and the driving gear 6.
Wherein, offer the spacing groove of week and dead lock pole 70 looks adaptation on the fire-fighting pipeline 2, and the degree of depth of spacing groove is two centimetres, in order to make drive plate 7 when the whereabouts, its dead lock pole 70 can directly insert to the spacing groove on fire-fighting pipeline 2 in, therefore be equipped with the spacing groove of week circle on the surface of its fire-fighting pipeline 2, and then increase the probability that its dead lock pole 70 and spacing groove inserted to through the quantity that increases its spacing groove.
Wherein the water collecting plate 13 is crescent-shaped, and the inner side of the water collecting plate 13 is provided with an oblique angle, the height value of the water collecting plate 13 is one half and five times of the height value of the driving fan blade 11, in order to realize the function of the fan blade in the rain falling process, the water flow flowing on the well lid 3 can push the driving fan blades 11 to rotate, so that the top of the protective shell 10 is provided with a water collecting plate 13, meanwhile, the water collecting plate 13 can collect the water medium, and meanwhile, the water collecting plate 13 is internally provided with a round angle, further increasing the water accumulation amount, and the height of the driving fan blade 11 is larger than that of the driving fan blade 11, so that the phenomenon of rotation overload caused by overlarge supporting force of the transmission rod 9 can be avoided after the protective shell 10 is jacked up, meanwhile, when external water rushes into the inner cavity of the sewer pipe 1, the increase of the height value of the water collecting plate 13 prevents the external water flow from impacting the driving fan blade 11 to cause the driving fan blade 11 to continuously rotate.
Wherein the tooth diameter value of the adjusting gear 5 is 4-5 times of the tooth diameter value of the driving gear 6, for the purpose of facilitating quick water intake, the tooth diameter value of the driving gear 6 thereof is set to be larger than the tooth diameter value of the adjusting gear 5, thereby causing the driving gear 6 to, in the process of facilitating the rotation of the adjusting gear 5, thereby reducing the driving force of rotation, facilitating the manual active opening, reducing the driving force required when the rainwater is driven to open, meanwhile, the driving gear 6 is connected with the external driving fan blade 11, so that the driving fan blade 11 can be manually driven to open, meanwhile, the driving fan blade can be automatically opened through rainwater, and finally, the aim of conveniently and quickly taking water is fulfilled, moreover, due to the tooth missing design of the adjusting gear 5, when the adjusting gear is closed by the driving gear 6, continuous rotation can be carried out until no pressure exists and the rotation sealing is finished.
The using method of the invention has the following working principle: firstly, mounting a protective shell 10 to an inner cavity of a sewer pipeline 1, wherein the top of the protective shell 10 can be in contact with a well lid 3 thereof;
under the normal state: the well lid 3 closes the sewer pipeline 1, meanwhile, the bottom of the well lid 3 is in contact with the top of the protective shell 10, and the well lid 3 is also in contact with the top of the transmission rod 9, so that the transmission rod 9 drives the driving fan blades 11 to fall down, the driving spring 8 is compressed at the same time, and the locking rod 70 on the driving plate 7 is inserted into the limiting groove at the top of the fire fighting pipeline 2 under the action of the driving spring 8;
when water is required to be taken: firstly, the well cover 3 is rotated and pulled open around one side of the top of the sewer pipe 1, meanwhile, after the well cover 3 is pulled open, because the driving spring 8 is not compressed, the driving rod 9 drives the driving fan blades 11 to eject out through elasticity, meanwhile, the ejected position is higher than the ground, then, the water outlet pipe 4 is opened and connected with the water pipe, the fan blades 11 are driven by clockwise rotation (the direction refers to the figure 4), the driving fan blades 11 can drive the driving rod 9 to rotate through driving the driving rod 9, further, the driving rod 9 drives the driving gear 6, the driving gear 6 drives the adjusting gear 5 to rotate through external teeth, the adjusting holes 50 on the adjusting gear 5 communicate the fire fighting pipeline 2 with the inner cavity of the protective shell 10, meanwhile, in the process of rotating the driving rod 9, because the driving spring 8 is not compressed at the moment, the driving spring 8 can drive the driving plate 7 to rotate, so that the locking rod 70 on the driving plate 7 can be easily separated from the limiting groove on the fire-fighting pipeline 2, then, after a large amount of water in the fire-fighting pipeline 2 flows to the inner cavity of the protective shell 10, water flow can be conveyed out through the water outlet pipeline 4 for fire extinguishment and the like, and meanwhile, the rest water flow can be gradually gathered in the inner cavity of the protective shell 10, so that the protective shell 10 can be ejected out;
in a rainy state: in the rain process, the water flow on the road surface can continuously flow into the sewer pipe 1 from the well cover 3, then the water flow flowing from the well cover 3 to the water collecting plate 13 can continuously move along a single direction, so that the water flow can continuously drive the fan blade 11, the drive fan blade 11 drives the transmission rod 9 to rotate clockwise (the direction is referred to as a figure 4), then, because the well cover 3 is in a closed state, the rotation of the drive fan blade 11 can enable the transmission rod 9 to drive the drive gear 6 to rotate synchronously, the drive gear 6 enables the adjusting hole 50 to be partially opened through the external tooth rotation of the adjusting gear 5, meanwhile, the drive spring 8 is pressed, so that when the drive spring 8 rotates due to the vertical stress of the transmission rod 9 in the process of the rotation of the drive rod 9, the locking rod 70 on the drive plate 7 is tightly clamped in the limiting groove on the fire fighting pipe 2, when the driving gear 6 rotates, the driving spring 8 is subjected to vertical and rotating compression force, then the medium in the fire fighting pipeline 2 flows to the inner cavity of the protective shell 10, the water outlet pipeline 4 is closed, so that when the medium in the fire fighting pipeline 2 flows to the protective shell 10, the protective shell 10 can be quickly jacked, the well lid 3 is jacked on one side, water can quickly flow from the gap where the well lid 3 is jacked, after the well lid 3 is jacked, the water flow flux on the surface of the well lid 3 can be greatly reduced, the driving force of the water flow cannot rotate and compress the driving spring 8, the driving rod 9 is reversed through the self-recovery of the driving spring 8, and the driving gear 6 drives the adjusting gear 5 to enable the adjusting hole 50 not to communicate the fire fighting pipeline 2 with the inner cavity of the protective shell 10;
draining accumulated water in the protective shell 10: after its protective housing 10 is opened in initiative or passively, its adjusting gear 5 separates the back with the rivers in the fire pipeline 2, and remaining rivers can be followed and slowly flowed out in the hole 12 that leaks in its protective housing 10, and then make the protective housing 10 can be automatic carry out the whereabouts of slowing, realize hiding.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an outdoor fire hydrant is used in fire control, includes sewer pipe (1) and fire control pipeline (2), there is well lid (3) through hinge movable mounting top one side of sewer pipe (1), fire control pipeline (2) top is equipped with outlet conduit (4), its characterized in that: the top movable mounting of fire control pipeline (2) has adjusting gear (5), adjusting hole (50) that are used for opening and shutting its fire control pipeline (2) are offered on the surface of adjusting gear (5), top one side movable mounting of fire control pipeline (2) has drive gear (6) with adjusting gear (5) external tooth meshing, the inner wall movable mounting of drive gear (6) has drive plate (7), the fixed surface of drive plate (7) installs drive spring (8) that are located drive gear (6) inner chamber, the top fixed mounting of drive spring (8) has transfer line (9), and transfer line (9) and drive gear (6) activity cup joint, the lateral part movable mounting of fire control pipeline (2) has protective housing (10), the inner chamber of protective housing (10) communicates with each other through adjusting hole (50) and the inner chamber of fire control pipeline (2), the water leakage protection device is characterized in that a water outlet pipeline (4) communicated with an inner cavity of the protection shell (10) is fixedly installed on the side wall of the protection shell (10), a driving fan blade (11) located above the protection shell (10) is fixedly installed at the top of the transmission rod (9) in a penetrating mode through the protection shell (10), and a water leakage hole (12) used for discharging media in the inner cavity of the protection shell (10) is formed in the bottom of the side wall of the protection shell (10).
2. A fire fighting outdoor fire hydrant according to claim 1, characterized in that: bottom one side fixedly connected with lock pole (70) of drive plate (7), and the top of fire pipeline (2) offer with the spacing groove of lock pole (70) looks adaptation, the top of protective housing (10) is equipped with and is used for water guide's water-collecting plate (13).
3. A fire fighting outdoor fire hydrant according to claim 1, characterized in that: the shape of transfer line (9) is the combination pole of cylinder and cuboid, and the cylinder at its transfer line (9) top and the top movable mounting of protective housing (10), the top of the cylinder at transfer line (9) top is equipped with the fillet.
4. A fire fighting outdoor fire hydrant according to claim 2, characterized in that: the fire fighting pipeline (2) is provided with a limit groove with a periphery matched with the locking rod (70), and the depth of the limit groove is two centimeters.
5. A fire fighting outdoor fire hydrant according to claim 1, characterized in that: the shape of water-collecting plate (13) is crescent, and the inboard of water-collecting plate (13) is equipped with the oblique angle, the value of height of water-collecting plate (13) is one or five times of drive flabellum (11) value of height.
6. A fire fighting outdoor fire hydrant according to claim 1, characterized in that: the tooth diameter value of the adjusting gear (5) is 4-5 times of the tooth diameter value of the driving gear (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219975.5A CN112482501B (en) | 2020-11-05 | 2020-11-05 | Outdoor fire hydrant for fire fighting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219975.5A CN112482501B (en) | 2020-11-05 | 2020-11-05 | Outdoor fire hydrant for fire fighting |
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| CN112482501A true CN112482501A (en) | 2021-03-12 |
| CN112482501B CN112482501B (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011219975.5A Active CN112482501B (en) | 2020-11-05 | 2020-11-05 | Outdoor fire hydrant for fire fighting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113802646A (en) * | 2021-09-29 | 2021-12-17 | 安徽广桐建设有限公司 | Pipeline fire hydrant is used fast in street fire control |
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| CN211312694U (en) * | 2019-10-29 | 2020-08-21 | 大庆华拓消防安全设施有限公司 | Lifting mechanism for underground fire hydrant |
| CN111779075A (en) * | 2020-07-13 | 2020-10-16 | 包平 | Outdoor fire hydrant capable of self-recovering |
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| EP1267110A1 (en) * | 2001-06-15 | 2002-12-18 | Gaz De France | Actuating device for a buried tap |
| CN208379682U (en) * | 2018-06-15 | 2019-01-15 | 绍兴柯桥供水有限公司 | A kind of outdoor water supply fire hydrant with protecting effect |
| CN209686516U (en) * | 2018-12-27 | 2019-11-26 | 洪桂芬 | A kind of Concealed fire bolt |
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| CN211312694U (en) * | 2019-10-29 | 2020-08-21 | 大庆华拓消防安全设施有限公司 | Lifting mechanism for underground fire hydrant |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113802646A (en) * | 2021-09-29 | 2021-12-17 | 安徽广桐建设有限公司 | Pipeline fire hydrant is used fast in street fire control |
| CN113802646B (en) * | 2021-09-29 | 2023-02-28 | 安徽广桐建设有限公司 | Pipeline fire hydrant is used fast in street fire control |
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| CN112482501B (en) | 2022-10-11 |
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Effective date of registration: 20220922 Address after: No. 393, No. 10 Middle School, Liantang Village, Ximei Street, Nan'an City, Quanzhou City, Fujian Province, 363200 Applicant after: Wanxiao Fire Technology Co.,Ltd. Address before: 450007 Yinfa Industrial Park, No.10, intersection of Yinping road and Dongqing street, high tech Zone, Zhongyuan District, Zhengzhou City, Henan Province Applicant before: Zhou Yuanhe |
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