CN112482501B - Outdoor fire hydrant for fire fighting - Google Patents
Outdoor fire hydrant for fire fighting Download PDFInfo
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- CN112482501B CN112482501B CN202011219975.5A CN202011219975A CN112482501B CN 112482501 B CN112482501 B CN 112482501B CN 202011219975 A CN202011219975 A CN 202011219975A CN 112482501 B CN112482501 B CN 112482501B
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- fire
- pipeline
- fire fighting
- protective housing
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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 a fixed position, mainly used for controlling combustible substances, isolating combustion-supporting substances and eliminating ignition sources, and mainly divided into two types, namely an outdoor fire hydrant and an indoor fire hydrant.
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: the utility model provides an outdoor fire hydrant is used in fire control, includes sewer pipe and fire control pipeline, there is the well lid through hinge movable mounting top one side of sewer pipe, fire control pipeline top is equipped with outlet conduit, fire control pipeline's top movable mounting has adjusting gear, adjusting gear's surface is offered and is used for the regulation hole that opens and shuts its fire control pipeline, top one side movable mounting of fire control pipeline has the drive gear with adjusting gear external tooth meshing, drive gear's inner wall movable mounting has the drive plate, the fixed surface of drive plate installs the drive spring who is located the drive gear inner chamber, drive spring's top fixed mounting has the transfer line, and the transfer line cup joints with the drive gear activity, fire control pipeline's lateral part movable mounting has the protective housing, the inner chamber of protective housing communicates with each other through the inner chamber of regulation hole with fire control pipeline, the lateral wall fixed mounting of protective housing have with the communicating outlet conduit of protective housing inner chamber, and the top of transfer line run 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 offers the hole that leaks that is used for discharging its protective housing inner chamber medium.
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 shape of 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 schematic 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 the fire fighting pipeline 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 mounted 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 mounted 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 mounted on one side of the top of the fire fighting pipeline 2, a driving plate 7 is movably mounted 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 mounted on the surface of the driving plate 7, a driving rod 9 is fixedly mounted 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 movably mounted on the side of the fire fighting pipeline 2, the inner cavity of the protective shell 10 is communicated with the inner cavity of the fire fighting pipeline 2 through the adjusting hole 50, 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 media in the inner cavity of the protective shell 10, in order to achieve the hiding purpose, the side wall of the fire fighting 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, therefore, in the using process, the media in the fire fighting pipeline 2 are introduced into the inner cavity of the protective shell 10, the inner cavity of the protective shell 10 is increased and reduced by water flow to realize rising and falling, the hiding phenomenon under the condition of nonuse is realized, and meanwhile, the protective shell 10 is arranged in the sewer pipeline 1, not only can reduce the space that its protective housing 10 need install the needs in addition and occupy to, can carry out certain protection to protective housing 10 through its well lid 3, great reduction its required manufacturing cost of protective housing 10, finally reach the hidden purpose.
The locking rod 70 is fixedly connected to one side of the bottom of the driving plate 7, a limiting groove matched with the locking rod 70 is formed in the top of the fire fighting pipeline 2, a water collecting plate 13 used for guiding water is arranged on the top of the protective shell 10, in order to increase the accumulated water discharge rate of the well lid 3, a driving spring 8 is arranged in an inner cavity of the driving gear 6, when water is normally taken, the locking rod 70 on the driving plate 7 can be rapidly separated from the limiting groove on the fire fighting pipeline 2 through opening of the driving spring 8, the driving spring 8 cannot influence rotation after the driving gear 6 is driven by the driving rod 9 to drive the adjusting gear 5 to synchronously rotate, meanwhile, when the locking rod 70 is clamped in the limiting groove, the driving gear 6 can be rotated through the driving rod 9, the driving spring 8 not only bears vertical compression force, but also bears torsional force brought by rotation, therefore, when the load is removed, the driving spring 8 can be reversely rotated through self-recovery, after the protective shell 10 is jacked, water flow rapidly ejects out of the protective shell 3 from a gap between the ground, when the accumulated water flow rate of the fire fighting pipeline 2 is reduced, and the accumulated water discharge rate of the well lid 2 is finally increased, and the accumulated water discharge rate of the well lid 2 is increased.
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, and the top end of the cylinder at the top of the transmission rod 9 is provided with a round angle, so that the rotating resistance of the transmission rod 9 is reduced 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 arranged at the lower part of the transmission rod 9 can transmit torque and can slide relative to 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.
The water collecting plate 13 is crescent, and the inner side of the water collecting plate 13 is provided with an oblique angle, the height of the water collecting plate 13 is one-fifth of the height of the driving fan blade 11, in order to push the driving fan blade 11 to rotate in the rain process, the water collecting plate 13 is arranged at the top of the protective shell 10, the water collecting plate 13 can collect the water medium, meanwhile, the fillet is arranged in the water collecting plate 13 to increase the water collecting amount, and the height of the driving fan blade 11 is larger than that of the driving fan blade 11, so that the phenomenon that the driving shaft 9 is overloaded due to too large supporting force after the protective shell 10 is jacked up can be avoided, and meanwhile, when the height of the water collecting plate 13 is increased, the external water is prevented from impacting the driving fan blade 11 to continuously rotate due to the impact of the external water flow when the external water rushing into the inner cavity of the sewer pipeline 1.
Wherein, the tooth diameter value of adjusting gear 5 is 4-5 times of the tooth diameter value of drive gear 6, in order to reach the purpose of being convenient for quick water intaking, therefore set up the tooth diameter value of its drive gear 6 bigger than the tooth diameter value of adjusting gear 5, therefore make drive gear 6 in the in-process that promotes adjusting gear 5 pivoted, and then can alleviate pivoted drive power, not only be convenient for artificial initiative to open, simultaneously, still reduce the required drive power when the rainwater is passively taken away, simultaneously, link to each other with outside drive flabellum 11 through its drive gear 6, not only can drive flabellum 11 and realize artifical manual taking away, simultaneously, can realize automatic opening through the rainwater, finally reach the purpose of being convenient for quick water intaking, and, through its adjusting gear 5 lacks the tooth design, therefore when closing through drive gear 6, can carry out continuous rotation, it finishes to do not have pressure and rotate to seal.
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;
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, the driving spring 8 is compressed, and the locking rod 70 on the driving plate 7 is inserted into the limiting groove in 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 lid 3 is rotated and pulled open around one side of the top of the sewer pipe 1, meanwhile, after the well lid 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 a water pipe, the fan blades 11 are driven to rotate clockwise (with reference to the direction shown in a figure 4) through driving the driving rod 9, so that the driving rod 9 drives the driving gear 6 through driving, the driving gear 6 drives the adjusting gear 5 to rotate through external teeth, the adjusting holes 50 on the adjusting gear 5 enable the fire fighting pipeline 2 to be communicated with the inner cavity of the protective shell 10, meanwhile, in the rotating process of the driving rod 9, because the driving spring 8 is not compressed at the moment, the driving spring 8 drives the driving plate 7 to rotate through the external teeth, so that the locking rod 70 on the driving plate 7 can be easily separated from the limiting grooves on the fire fighting pipeline 2, then, after a large amount of water in the fire fighting pipeline 2 flows into the inner cavity of the protective shell 10, water flow out for fire extinguishment and the remaining fire protection shell is gradually gathered, and then the water flow out of the inner cavity of the fire protection shell 10;
in a rainy state: during the rain, the water flow on the road surface can continuously flow into the sewer pipeline 1 from the well cover 3, and then, the water flow flowing from the well lid 3 to the water collecting plate 13 will continuously move along a single direction, so that the water flow can continuously drive the fan blade 11, so that the drive fan blade 11 drives the drive rod 9 to rotate clockwise (with reference to the direction of fig. 4), and then, since the manhole cover 3 is in a closed state, the rotation of the driving fan blades 11 will make the driving rod 9 drive the driving gear 6 to rotate synchronously, the driving gear 6 will make the adjusting hole 50 open partially through the rotation of the outer teeth of the adjusting gear 5, and at the same time, the driving spring 8 is pressed, so that when the driving rod 9 rotates, the driving spring 8 is stressed vertically due to the driving rod 9, the locking rod 70 on the driving plate 7 is tightly clamped in the limiting groove on the fire fighting pipeline 2, and when the driving gear 6 rotates, the driving spring 8 is subjected to a vertical and rotational compression force, and thereafter, the medium in its fire fighting pipe 2 flows to the inner cavity of the protective shell 10, its water outlet pipe 4 is closed, therefore, when the fire fighting pipeline 2 flows to the protective shell 10, the protective shell 10 can be quickly jacked up, thereby enabling the well lid 3 to be jacked up unilaterally, enabling water flow to rapidly flow from the clearance where the well lid 3 is jacked up, and after the well lid 3 is jacked up, the water flux on the surface of the well cover 3 is greatly reduced, the driving force of the water flow can not rotate and compress the driving spring 8 any more, the driving rod 9 is reversed through the self-recovery of the driving spring 8, the driving gear 6 drives the adjusting gear 5 to prevent the fire fighting pipeline 2 of the adjusting hole 50 from being communicated 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 utility model discloses a fire control pipeline, including fire control pipeline (2), the top movable mounting of fire control pipeline (2) has adjusting gear (5), adjusting gear (5) the surface offer be used for the regulation hole (50) of opening and shutting its fire control pipeline (2), 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) cup joint with drive gear (6) activity, 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 lateral wall fixed mounting of protective housing (10) has outlet conduit (4) that communicates with protective housing (10) inner chamber, and the top of transfer line (9) runs through protective housing (10) and fixed mounting has drive fan blade (11) that are located protective housing (10) top, the lateral wall of protective housing (10) is used for its discharge medium (12) is seted up to the bottom discharge hole (12).
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 hydrant according to claim 2, characterized in that: the shape of water collection sheet (13) is crescent, and the inboard of water collection sheet (13) is equipped with the oblique angle, the height value of water collection sheet (13) is 1.5 times of drive flabellum (11) height value.
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).
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| Application Number | Priority Date | Filing Date | Title |
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| 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 CN112482501A (en) | 2021-03-12 |
| CN112482501B true CN112482501B (en) | 2022-10-11 |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2826090B1 (en) * | 2001-06-15 | 2003-09-19 | Gaz De France | DEVICE FOR HANDLING A UNDERGROUND 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 |
| CN211006873U (en) * | 2019-08-23 | 2020-07-14 | 曾庆芳 | Buried fire hydrant |
| 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 |
| CN111424766B (en) * | 2020-04-21 | 2021-06-22 | 安徽凤胜建筑有限公司 | Fire hydrant of hidden fire hydrant brings out device |
| CN111779075B (en) * | 2020-07-13 | 2021-11-30 | 南陵旺科知识产权运营有限公司 | Outdoor fire hydrant capable of self-recovering |
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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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