CN113789835A - Safety fire hydrant for fire fighting - Google Patents

Safety fire hydrant for fire fighting Download PDF

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Publication number
CN113789835A
CN113789835A CN202111269359.5A CN202111269359A CN113789835A CN 113789835 A CN113789835 A CN 113789835A CN 202111269359 A CN202111269359 A CN 202111269359A CN 113789835 A CN113789835 A CN 113789835A
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CN
China
Prior art keywords
protective cover
fire
inner sleeve
cover
sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111269359.5A
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Chinese (zh)
Inventor
黄维方
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Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202111269359.5A priority Critical patent/CN113789835A/en
Publication of CN113789835A publication Critical patent/CN113789835A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00Methods or installations for drawing-off water
    • E03B9/02Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/04Column hydrants
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00Methods or installations for drawing-off water
    • E03B9/02Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B9/14Draining devices for hydrants
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B9/00Methods or installations for drawing-off water
    • E03B9/02Hydrants; Arrangements of valves therein; Keys for hydrants
    • E03B2009/022Hydrants with a tubular valve seat

Abstract

The invention discloses a fire-fighting safety fire hydrant, which relates to the field of fire hydrants and aims to solve the problems that the fire hydrant is inconvenient to use and the emergency rescue progress is influenced in the prior art.A technical scheme is adopted that the upper part of a fire hydrant body is arranged outside a protective cover, so that the fire hydrant can be conveniently operated while the protective cover can protect the fire hydrant from being impacted by vehicles, and a valve rotating hand wheel can be connected at the first time when an emergency happens, so that the rapid emergency rescue work is ensured; the protective cover is arranged into a left cover and a right cover, so that the protective cover is convenient to install; the inner sleeve and the protective cover are detachably connected, the protective cover can be installed in place firstly, and then the inner sleeve is installed, so that the bolt on the protective cover fixing plate can be conveniently screwed.

Description

Safety fire hydrant for fire fighting
Technical Field
The invention relates to the field of fire hydrants, in particular to a safety fire hydrant for fire fighting.
Background
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, and the fire hydrant is mainly used for a fire truck to take water from a municipal water supply network or an outdoor fire water supply network to put out a fire or can 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.
The fire hydrant is called fire hydrant formally, is a fixed fire-fighting equipment, and mainly has the functions of controlling combustible substances, isolating combustion-supporting substances and eliminating ignition sources.
Fire hydrants are used as sources of fire-fighting water and are distributed on two sides of a street in a large quantity, and the fire hydrants damaged by vehicle collision are countless every year, so that public facilities are damaged, water resources are wasted if the fire-fighting water is sprayed out, and the damaged fire hydrants can bring greater loss and danger when a fire disaster happens.
Chinese patent CN201920147844.7 discloses a safe anti-collision fire hydrant, which adopts the technical scheme that the safe anti-collision fire hydrant comprises a fire hydrant body, a water outlet is arranged on the fire hydrant body, a protective cover is covered outside the fire hydrant body, an opening and closing door is installed at the top end of the protective cover, a protective ring is arranged at the periphery of the protective cover, a plurality of buffer springs which are uniformly distributed in an array are connected between the protective ring and the protective cover, the protective ring is sequentially divided into an inner ring and an outer ring from inside to outside, the outer ring is rotatably connected on the outer side wall of the inner ring, a buffer pad covers the surface of the outer side wall of the outer ring, the fire hydrant body comprises a water outlet part and a connecting part, the connecting part is pre-buried under the ground, the water outlet part is fixedly installed at the top end of the connecting part through a plurality of bolts, the bottom end of the connecting part is connected with a city water pipeline, the water outlet is arranged on the water outlet part, and a fixed cylinder is fixed at the bottom end inside the connecting part, the connecting portion bottom corresponds solid fixed cylinder department and has seted up the water inlet, set up a plurality of evenly distributed's outlet on the lateral wall of solid fixed cylinder, gu fixed cylinder internally mounted has the piston, be connected with reset spring between piston and the inside top of solid fixed cylinder, the handle is installed on play water portion top, the handle bottom runs through out inside the water portion roof extends to play water portion to fixedly connected with screw rod, there is the lifting disk through threaded connection on the screw rod, the lifting disk slidable mounting is in a water portion inside, the lifting disk bottom is connected with a plurality of evenly distributed's connecting rod, the bottom of connecting rod runs through solid fixed cylinder roof and extends to solid fixed cylinder inside to with piston fixed connection.
This technical scheme in the use, when can appearing really needing to use the fire hydrant, because of the protection casing inner space is narrow and small, lead to pipe connection and rotatory hand wheel operation inconvenient, influence the progress of speedily carrying out rescue work, and if reserve sufficient space in the protection casing, can lead to the whole area occupied of protection casing too big again.
Disclosure of Invention
In view of the problems in the prior art, the invention discloses a fire-fighting safety hydrant, which adopts the technical scheme that the fire-fighting safety hydrant comprises a body and a protective cover, the body also comprises a water outlet part and a connecting part, the bottom surface of the connecting part is provided with a water inlet, a fixed cylinder is arranged above the connecting part, a piston is connected in the fixed cylinder in a sliding way, a spring is arranged between the piston and the fixed cylinder, the piston is connected with a sealing plate through a connecting rod, the fixed cylinder is provided with a water outlet, the upper end of the water outlet part is provided with a threaded hole, a screw rod is internally engaged in the threaded hole, one end of the screw rod is connected with a hand wheel, the other end of the screw rod is connected with the sealing plate, the water outlet part is provided with a water outlet, the protective cover is a shell with through upper and lower ends, the upper end opening corresponds to the position of the body and is matched with the size, the body penetrates out of the upper end opening, the lower end opening is connected with the ground for fixed installation, the shock absorption device is characterized in that an inner sleeve is arranged outside the protective cover and connected with a shock absorption device through the inner sleeve, a longitudinal groove is formed in the inner sleeve, a roller is connected with an inner shaft of the longitudinal groove, an outer sleeve is connected onto the inner sleeve in a sliding mode, the outer sleeve and the inner sleeve are coaxially arranged, a vertical surface on the inner side of the outer sleeve is connected with the roller in a sliding mode, a vertical surface on the outer side of the outer sleeve is connected with an outer ring through a shock absorption spring, when an out-of-control vehicle impacts the outer ring, impact force of the vehicle can be absorbed through deformation of the shock absorption spring, the roller enables the outer sleeve to rotate, so that linear impact force of the vehicle is converted into tangential force, and kinetic energy absorbed by the protective cover is reduced; the fire hydrant is characterized in that the plurality of water outlets are arranged above the outer side of the protective cover, the hand wheel and the plurality of water outlets are arranged on the outer side, so that water can be supplied in multiple directions, and the water outlets and the hand wheel are arranged on the outer side, so that the fire hydrant can be quickly connected and started in case of danger.
As a preferred technical scheme of the invention, the protective cover comprises a left cover and a right cover, connecting plates which are corresponding in position and matched in size are arranged on the left cover and the right cover, the two connecting plates are connected through bolts, and a convex body is usually adopted for the water outlet, so that when the water outlet and a hand wheel are arranged on the outer side, the conventional downward-sleeved protective cover is not applicable, and the protective cover is connected by the left cover and the right cover during assembly, so that the protective cover is convenient to install, and can be tightly attached to the body.
As a preferred technical scheme of the invention, the rubber ring is arranged at the opening at the upper end of the rubber protective cover, and not only can the rubber ring seal the gap between the protective cover and the body to prevent water accumulation caused by rain leakage, but also can form buffering and reduce the impact received by the body.
In a preferred embodiment of the present invention, a fixing plate is mounted on an outer side of the lower port of the shield, the fixing plate is provided with a bolt hole, and the fixing plate can be fixed on the ground by passing a bolt through the bolt hole to mount the shield.
As a preferable technical scheme of the invention, the inner sleeve and the protective cover are detachably connected, so that the installation of the bolt of the fixing plate is convenient.
As a preferred technical scheme of the invention, the inner side of the inner sleeve is provided with a limiting block, the outer side of the protective cover is provided with a limiting groove which corresponds to the limiting block in position and is matched with the limiting block in size, and the inner sleeve can be installed by inserting the limiting block into the limiting groove.
As a preferred technical scheme of the invention, the outer sleeve is of an annular structure, the inner ring is provided with an embedded groove matched with the inner sleeve in size, the inner sleeve is arranged in the embedded groove, the top surface and the bottom surface of the embedded groove are both provided with ball grooves, balls are arranged in the ball grooves, compression springs are arranged between the balls and the ball grooves in a pressing mode, and the compression springs are in sliding connection with the balls; the top surface and the bottom surface of the inner sleeve are provided with ball grooves for the balls to roll, and when the outer sleeve rotates, the balls roll in the ball grooves, so that the friction force can be reduced.
As a preferable technical scheme of the invention, the ball groove is an annular groove, so that the large-angle rotation of the outer sleeve is facilitated.
According to the preferred technical scheme, the sealing plate is connected with the screw rod through the sealing bearing, the sealing plate is only driven to move up and down when the screw rod is rotated through the hand wheel, the sealing plate cannot rotate, the two connecting rods are connected to the lower portion of the sealing plate, the rubber pad is arranged on the vertical side face of the sealing plate, the rubber pad is connected with the inner wall of the body in a sliding mode, and water can be sealed below the sealing plate through the sealing bearing and the rubber pad.
The invention has the beneficial effects that: according to the invention, the upper part of the fire hydrant body is arranged outside the protective cover, so that the fire hydrant can be conveniently operated while the protective cover can protect the fire hydrant from being impacted by a vehicle, and the valve rotating hand wheel can be connected at the first time when a dangerous case occurs, so that the rapid implementation of emergency work is ensured.
The protective cover is arranged into a left cover and a right cover, so that the protective cover is convenient to install; the inner sleeve and the protective cover are detachably connected, the protective cover can be installed in place firstly, and then the inner sleeve is installed, so that the bolt on the protective cover fixing plate can be conveniently screwed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;
FIG. 4 is a schematic top view of the inner sleeve according to the present invention;
fig. 5 is a schematic top view of the shield according to the present invention.
In the figure: 1. a body; 2. a protective cover; 201. a left cover; 202. a right cover; 3. an outer ring; 4. a damping spring; 5. a jacket; 6. an inner sleeve; 7. a roller; 8. a water outlet; 9. a screw; 10. closing the plate; 11. a hand wheel; 12. a limiting block; 13. a connecting plate; 14. a ball bearing; 15. a compression spring; 16. a ball groove; 17. a limiting groove; 18. and (7) fixing the plate.
Detailed Description
The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in figures 1 to 5, the invention discloses a fire-fighting safety hydrant, which adopts the technical scheme that the fire-fighting safety hydrant comprises a body 1 and a protective cover 2, wherein the body 1 further comprises a water outlet part and a connecting part, the bottom surface of the connecting part is provided with a water inlet, a fixed cylinder is arranged above the connecting part, a piston is connected in the fixed cylinder in a sliding way, a spring is arranged between the piston and the fixed cylinder, the piston is connected with a sealing plate 10 through a connecting rod, the fixed cylinder is provided with a water outlet, the upper end of the water outlet part is provided with a threaded hole, a screw rod 9 is engaged in the threaded hole, one end of the screw rod 9 is connected with a hand wheel 11, the other end of the screw rod is connected with the sealing plate 10, the water outlet part is provided with a water outlet 8, the protective cover 2 is a shell with through upper and lower ends, the upper end opening corresponds to the body 1 in position and is matched with the size, the body 1 penetrates through the upper end opening, the lower end opening is connected with the ground, the protective cover is characterized in that an inner sleeve 6 is arranged outside the protective cover 2 and can be connected with a peripheral damping mechanism through the inner sleeve 6, a longitudinal groove is formed in the inner sleeve 6, a roller 7 is connected with the longitudinal groove, an outer sleeve 5 is connected onto the inner sleeve 6 in a sliding mode, the outer sleeve 5 and the inner sleeve 6 are coaxially arranged, the vertical surface of the inner side of the outer sleeve 5 is connected with the roller 7 in a sliding mode, the vertical surface of the outer side of the outer sleeve 5 is connected with an outer ring 3 through a damping spring 4, the outer ring 3 further comprises 4 arc-shaped plates facing to four directions, when an out-of-control vehicle impacts the outer ring 3, the outer sleeve 5 can rotate to steer impact force, the roller 7 can accelerate the rotation of the outer sleeve 5, the impact force applied to the protective cover 2 is reduced, and the damage to the body 1 is reduced; a plurality of water outlets 8 and the hand wheels 11 are positioned above the outer side of the protective cover 2, so that when a dangerous case occurs, a water pipe can be quickly connected to the water outlets 8 and the hand wheels 11 can be rotated; when the body 1 and the protective cover 2 are manufactured, the height of the protective cover 2 and the body 1 can be raised, so that a controlled vehicle cannot bump on the exposed body 1 due to the fact that the protective cover 2 is rushed too fast.
As a preferred technical solution of the present invention, the protective cover 2 includes a left cover 201 and a right cover 202, the left cover 201 and the right cover 202 have connecting plates 13 with corresponding positions and matched sizes, and the two connecting plates 13 are connected by bolts; in assembly, the left cover 201 and the right cover 202 are folded from the left and right sides of the body 1, and the bolt holes of the two connecting plates 13 are opposed to each other, and the connecting bolts are connected through the bolt holes.
As a preferable technical scheme of the invention, the rubber ring is arranged at the opening at the upper end of the rubber protective cover 2, and not only can seal the gap between the protective cover 2 and the body 1, but also can provide buffer when the protective cover 2 is impacted.
In a preferred embodiment of the present invention, a fixing plate 18 is mounted outside the lower port of the shield 2, the fixing plate 18 is provided with a bolt hole, and a fixing bolt is inserted through the bolt hole and connected to the ground so as to bolt the shield to the ground.
As a preferred technical solution of the present invention, the inner sleeve 6 and the protective cover 2 are detachably connected, so that the fixing bolt for the fixing plate 18 can be more conveniently installed in a state where the inner sleeve 6 is not installed, and the inner sleeve 6 can be installed after the fixing plate 18 is installed.
As a preferred technical scheme of the invention, the inner side of the inner sleeve 6 is provided with a plurality of limiting blocks 12, the limiting blocks 12 are distributed in an annular array, the outer side of the protective cover 2 is provided with a limiting groove 17 which corresponds to the limiting blocks 12 in position and is matched with the limiting blocks 12 in size, and the limiting blocks 12 can be aligned to the limiting groove 17 to be inserted during installation, so that the rapid installation can be realized.
As a preferred technical scheme of the invention, the outer sleeve 5 is of an annular structure, an inner ring is provided with a caulking groove matched with the inner sleeve 6 in size, the inner sleeve 6 is arranged in the caulking groove to prevent falling off, the top surface and the bottom surface of the caulking groove are both provided with ball grooves, balls 14 are arranged in the ball grooves, compression springs 15 are arranged between the balls 14 and the ball grooves in a pressing mode, and the balls 14 can reduce friction force; the top surface and the bottom surface of the inner sleeve 6 are provided with ball grooves 16 for the rolling of the balls 14.
As a preferred technical solution of the present invention, the ball groove 16 is an annular groove, and can realize a large-angle rotation.
As a preferred technical scheme of the invention, the sealing plate 10 is connected with the screw rod 9 through a sealing bearing, two connecting rods are connected below the sealing plate, the screw rod 9 can be driven to rotate by rotating the hand wheel 11, the screw rod 9 moves up and down along the threaded hole, the sealing plate 10 only moves up and down along with the screw rod 9 and keeps relative rotation with the screw rod 9 through the sealing bearing under the limit of the two connecting rods, the sealing plate 10 drives the piston to move up and down through the connecting rods, a rubber pad is arranged on the vertical side surface of the sealing plate 10, a gap between the sealing plate 10 and the body 1 can be sealed, fire-fighting water is sealed below the sealing plate 10, and the rubber pad is in sliding connection with the inner wall of the body 1.
As a preferable embodiment of the present invention, a cushion pad is mounted on the outer ring 3 to form a certain cushion.
The working principle of the invention is as follows: the outer sleeve 5, the inner sleeve 6, the roller 7, the damping spring 4 and the outer ring 3 are integrated modules, when the fire hydrant is installed, after the body 1 is installed, the left cover 201 and the right cover 202 of the protective cover 2 are folded from two sides of the body 1 and are connected with the body 1 through the rubber ring with an opening at the upper end to form buffering, the connecting plate 13 is connected through bolts, the fixing bolts penetrate through bolt holes in the fixing plate 18 to connect the fixing plate with the ground, the installation of the protective cover 2 is completed, the limiting block 12 of the inner sleeve 6 is aligned with the limiting groove 17 of the protective cover 2 to be inserted, and the assembly can be completed.
When the vehicle impact of being out of control is on outer lane 3, the cushion on the outer lane 3 forms the one-level buffering, then damping spring 4 compresses, absorb the kinetic energy of vehicle striking, form the second grade buffering, the power that forms along the striking direction behind the vehicle striking outer lane 3 can promote overcoat 5 to rotate around self axis, roller 7 and ball 14 can reduce the frictional force of contact surface, the rotation through overcoat 5 turns into the tangential power with the impact force of straight line, reduce the impact that protection casing 2 bore, form tertiary buffering, finally the rubber circle between protection casing 2 and the body 1 is the level four buffering, protect the safety of fire hydrant in proper order.
The mechanical connection according to the invention is a conventional means used by the skilled person and can be suggested by limited trials and is common general knowledge.
Components not described in detail herein are prior art.
Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes and modifications without inventive changes may be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.

Claims (9)

1. The utility model provides a safety fire hydrant is used in fire control, includes body (1) and protection casing (2), body (1) still includes a water outlet portion and connecting portion, there is the water inlet connecting portion bottom surface, and there is the solid fixed cylinder top, sliding connection has the piston in the solid fixed cylinder, the piston with there is the spring between the solid fixed cylinder, the piston passes through the connecting rod and connects shrouding (10), there is the outlet on the solid fixed cylinder, open threaded hole on the water outlet portion, the threaded hole internal gearing has screw rod (9), screw rod (9) one end is connected with hand wheel (11), and the other end is connected shrouding (10), delivery port (8) are equipped with on the water outlet portion, its characterized in that: the protective cover (2) is a shell with two through upper and lower ends, an opening at the upper end corresponds to the body (1) in position and is matched with the body in size, a lower port is connected with the ground, an inner sleeve (6) is arranged outside the protective cover (2), a longitudinal groove is formed in the inner sleeve (6), a roller (7) is connected with the longitudinal groove in an inner shaft, an outer sleeve (5) is connected onto the inner sleeve (6) in a sliding manner, the outer sleeve (5) and the inner sleeve (6) are coaxially arranged, the vertical surface on the inner side of the outer sleeve (5) is connected with the roller (7) in a sliding manner, and the vertical surface on the outer side of the outer sleeve (5) is connected with an outer ring (3) through a damping spring (4); the water outlet (8) is provided with a plurality of water outlets and the hand wheel (11) is positioned above the outer side of the protective cover (2).
2. A fire safety hydrant according to claim 1 in which: the protective cover (2) comprises a left cover (201) and a right cover (202), connecting plates (13) which are corresponding in position and matched in size are arranged on the left cover (201) and the right cover (202), and the two connecting plates (13) are connected through bolts.
3. A fire safety hydrant according to claim 1 in which: the opening at the upper end of the rubber protective cover (2) is provided with a rubber ring.
4. A fire safety hydrant according to claim 1 in which: the outer side of the lower port of the protective cover (2) is provided with a fixing plate (18), and the fixing plate (18) is provided with a bolt hole.
5. A fire safety hydrant according to claim 4 in which: the inner sleeve (6) and the protective cover (2) are detachably connected.
6. A fire safety hydrant according to claim 5, wherein: the inner side of the inner sleeve (6) is provided with a limiting block (12), and the outer side of the protective cover (2) is provided with a limiting groove (17) which corresponds to the limiting block (12) in position and is matched with the limiting block in size.
7. A fire safety hydrant according to claim 1 in which: the outer sleeve (5) is of an annular structure, an embedded groove matched with the inner sleeve (6) in size is formed in the inner ring, bead grooves are formed in the top surface and the bottom surface of the embedded groove, balls (14) are arranged in the bead grooves, and compression springs (15) are arranged between the balls (14) and the bead grooves in a pressing mode; the top surface and the bottom surface of the inner sleeve (6) are provided with ball grooves (16) for the balls (14) to roll.
8. A fire safety hydrant according to claim 7 in which: the ball groove (16) is an annular groove.
9. A fire safety hydrant according to claim 1 in which: the sealing plate (10) is connected with the screw rod (9) through a sealing bearing, the lower part of the sealing plate is connected with two connecting rods, a rubber pad is arranged on the vertical side face of the sealing plate (10), and the rubber pad is connected with the inner wall of the body (1) in a sliding mode.
CN202111269359.5A 2021-10-29 2021-10-29 Safety fire hydrant for fire fighting Pending CN113789835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111269359.5A CN113789835A (en) 2021-10-29 2021-10-29 Safety fire hydrant for fire fighting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111269359.5A CN113789835A (en) 2021-10-29 2021-10-29 Safety fire hydrant for fire fighting

Publications (1)

Publication Number Publication Date
CN113789835A true CN113789835A (en) 2021-12-14

Family

ID=79185209

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111269359.5A Pending CN113789835A (en) 2021-10-29 2021-10-29 Safety fire hydrant for fire fighting

Country Status (1)

Country Link
CN (1) CN113789835A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062375A (en) * 1976-06-18 1977-12-13 Center Compression Lock Company Tamper proof lock
CN208266988U (en) * 2018-03-27 2018-12-21 张铁强 A kind of Anti-collision fire hydrant
CN210597471U (en) * 2019-01-25 2020-05-22 季德龙 Safe anticollision fire hydrant
CN210917573U (en) * 2018-10-19 2020-07-03 邢台职业技术学院 Fire hydrant with anticollision function
CN211340988U (en) * 2019-11-30 2020-08-25 南安市泉南消防阀门有限公司 Ground bolt with long service life
CN211948689U (en) * 2020-03-30 2020-11-17 广东恒迅建设集团有限公司 Fire hydrant that building security protection was used

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062375A (en) * 1976-06-18 1977-12-13 Center Compression Lock Company Tamper proof lock
CN208266988U (en) * 2018-03-27 2018-12-21 张铁强 A kind of Anti-collision fire hydrant
CN210917573U (en) * 2018-10-19 2020-07-03 邢台职业技术学院 Fire hydrant with anticollision function
CN210597471U (en) * 2019-01-25 2020-05-22 季德龙 Safe anticollision fire hydrant
CN211340988U (en) * 2019-11-30 2020-08-25 南安市泉南消防阀门有限公司 Ground bolt with long service life
CN211948689U (en) * 2020-03-30 2020-11-17 广东恒迅建设集团有限公司 Fire hydrant that building security protection was used

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Application publication date: 20211214