CN112885012B - Anti-theft fire hydrant - Google Patents
Anti-theft fire hydrant Download PDFInfo
- Publication number
- CN112885012B CN112885012B CN202110060246.8A CN202110060246A CN112885012B CN 112885012 B CN112885012 B CN 112885012B CN 202110060246 A CN202110060246 A CN 202110060246A CN 112885012 B CN112885012 B CN 112885012B
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- plate
- fire hydrant
- shell
- movable
- pipeline
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
-
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
Abstract
The invention relates to the technical field of fire fighting equipment and discloses an anti-theft fire hydrant, which comprises a fire hydrant body, wherein the fire hydrant body internally comprises a shell, a movable cavity is formed in the shell, and the movable cavity is a circular ring with a longitudinal section shape being a rectangle. According to the invention, the anti-theft effect is realized through the sound generating device, the moving device is triggered to move by utilizing the difference of water flow states in the fire hydrant, the vent hole of the generating device is communicated with the outside air, the air flow is disturbed by the flow dividing plate, the air flow is vibrated in the second pipeline, so that sound is generated, the alarm device is triggered by utilizing the difference of a sound signal during water stealing and a sound signal during fire extinguishing, the anti-theft effect is finally realized, the occurrence of the water stealing situation is reduced through alarming, meanwhile, the vent pipeline is arranged on the second pipeline, the air flowing speed in the second pipeline is increased by matching with the L-shaped pipeline, the air vibration is increased, and the capturing effect of the sound signal is improved.
Description
Technical Field
The invention relates to the technical field of fire fighting equipment, in particular to an anti-theft fire hydrant.
Background
Most of fire hydrants are in order to use at present, all set up on the ground near building district, and these fire hydrants are because geographical position exposes and are close to the residential block, so some residents can steal the inside water source of fire hydrant for the greedy picture is cheap, after the fire hydrant was stolen water for the water-break situation appears when putting out a fire to the fire hydrant, has the potential safety hazard to the fire control effect at conflagration scene.
Disclosure of Invention
Aiming at the defects of the existing fire hydrant in the background technology in the using process, the invention provides the anti-theft fire hydrant, which has the advantages of reducing the occurrence of water stealing of the fire hydrant and automatically alarming, and solves the problems in the background technology.
The invention provides the following technical scheme: an anti-theft fire hydrant comprises a fire hydrant body, wherein the fire hydrant body comprises a shell, a movable cavity is formed in the shell, the movable cavity is a circular ring with a rectangular longitudinal section shape, a first limiting plate is arranged at the bottom of the movable cavity and fixedly installed in the shell, a sound detector is arranged above the first limiting plate and installed in the shell, the sound detector extends into the movable cavity and does not contact with one side of the movable cavity close to the axis of the fire hydrant body, a fixed plate is arranged above the sound detector, a movable plate is tightly attached to one side of the movable cavity close to the axis of the fire hydrant body, a gap exists between the sound detector and the movable plate, the fixed plate is in contact with the movable plate, a sound production device is arranged above the first limiting plate, sound generating mechanism's upper surface and sound detector's bottom are hugged closely and sound detector fixed mounting is in the inside of shell, the upper end fixed mounting of fly leaf has the mobile device, the mobile device is located the inside lateral wall of fire hydrant body, the outer wall fixed mounting of fire hydrant body has alarm device, alarm device's outside cage has the protection casing, and the outer wall fixed mounting of protection casing and fire hydrant body, the outer wall of protection casing is equipped with the hole.
Preferably, the sound generating device comprises a first pipeline, the sound generating device is made of metal, two hollow ends of the first pipeline are opened, a splitter plate is fixedly mounted at the center of the inside of the first pipeline, the upper end of the splitter plate is in a wave crest shape, the splitter plate is similar to a vase in a longitudinal cutting shape, an opening is formed in the upper end of the splitter plate and used for communicating with a second pipeline, the top end of the splitter plate extends into the second pipeline, an air duct is arranged on one side, close to the movable plate, of the second pipeline, and the other end of the air duct is tightly attached to the side wall of the movable plate.
Preferably, the movable plate comprises a plate body which is an annular plate with a longitudinal section in an L shape, the plate body consists of a transverse plate and a vertical plate, the transverse plate of the plate body penetrates through the side wall of the shell close to the axis of the fire hydrant body, the plate body extends into the fire hydrant body and is fixedly installed with the moving device, the vertical plate of the plate body is positioned in the movable cavity, a second limit plate is arranged inside one end of the shell, which is contacted with the transverse plate, a spring is fixedly arranged inside the second limit plate, the other end of the spring is fixedly arranged at the bottom of the transverse plate, the shell is provided with a first movable hole, the plate body runs through first activity hole and extends to fire hydrant body inner chamber, open-ended third venthole about the plate body is seted up near sound generating mechanism's one end, the upper end top intercommunication of third venthole has L type pipeline.
Preferably, the moving device comprises an arc-shaped ring, the longitudinal section of the arc-shaped ring is in a wave crest shape with a steep upper part and a steep lower part, the upper end and the lower end of the arc-shaped ring are in smooth transition with the inner wall of the shell, the arc-shaped ring is fixedly connected with the plate body, a fixing rod is fixedly mounted at one side, close to the shell, of the upper end of the arc-shaped ring, the fixing rod is in a T shape, the fixing rod consists of a transverse plate and a vertical plate, a reference picture movable cavity is formed, the vertical plate is perpendicular to the plane, close to the shell, of the arc-shaped ring, the vertical plate is parallel to the plane, close to the shell, of the shell is aligned to the fixing rod, a second movable hole is formed in the position, close to the fixing rod, of the shell, and the shape of the second movable hole is matched with the shape of the fixing rod.
Preferably, the distance from the top of the first movable hole to the upper surface of the transverse plate of the plate body is equal to the distance from the top of the second movable hole to the upper surface of the vertical plate of the fixing rod.
Preferably, the housing includes a casing, the casing has a first vent hole near the inner wall of the hydrant body, the first vent hole is located near the third vent hole, the casing has a second vent hole far away from the inside of the hydrant body, and the second vent hole is located at an opening of one end of the flow distribution plate.
Preferably, the first vent hole, the third vent hole, the L-shaped pipeline, the sound generating device and the second vent hole are a group of sound devices, the sound devices are provided with four groups, and the four groups of sound devices are uniformly distributed in the shell along the circumferential direction of the axis of the fire hydrant body.
Preferably, when the upper surface of the plate body is in contact with the top of the first movable hole, the first vent hole is aligned with the third vent hole, and the L-shaped pipe is aligned with the opening of the vent pipe on the second pipe.
The invention has the following beneficial effects:
according to the invention, the anti-theft effect is realized through the sound generating device, the moving device is triggered to move by utilizing the difference of water flow states in the fire hydrant, the vent hole of the generating device is communicated with the outside air, the air flow is disturbed by the flow dividing plate, the air flow is vibrated in the second pipeline, so that sound is generated, the alarm device is triggered by utilizing the difference of a sound signal during water stealing and a sound signal during fire extinguishing, the anti-theft effect is finally realized, the occurrence of the water stealing situation is reduced through alarming, meanwhile, the vent pipeline is arranged on the second pipeline, the air flowing speed in the second pipeline is increased by matching with the L-shaped pipeline, the air vibration is increased, and the capturing effect of the sound signal is improved.
Drawings
FIG. 1 is a schematic view of the present invention showing the structure of the internal water at rest;
FIG. 2 is a schematic view of the structure of the present invention when the internal water flows;
FIG. 3 is a schematic view of the structure of FIG. 1 at A according to the present invention;
FIG. 4 is a schematic view of the structure of FIG. 2B according to the present invention.
In the figure: 1. a fire hydrant body; 2. a housing; 21. a housing; 22. a first vent hole; 23. a second vent hole; 3. a movable cavity; 4. a first limit plate; 5. a sound detector; 6. a fixing plate; 7. a movable plate; 71. a plate body; 72. a second limiting plate; 73. a spring; 74. a first movable hole; 75. a third vent hole; 76. an L-shaped pipeline; 8. a sound producing device; 81. a first conduit; 82. a flow distribution plate; 83. a second conduit; 9. a mobile device; 91. an arc-shaped ring; 92. fixing the rod; 93. a second movable hole; 10. an alarm device; 11. a shield.
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. 1-4, an anti-theft fire hydrant includes a fire hydrant body 1, the fire hydrant body 1 includes a housing 2 therein, a movable chamber 3 is disposed inside the housing 2, the movable chamber 3 is a circular ring with a rectangular longitudinal section, a first limiting plate 4 is disposed at the bottom of the movable chamber 3, the first limiting plate 4 is fixedly mounted inside the housing 2, a sound detector 5 is disposed above the first limiting plate 4, the sound detector 5 is mounted inside the housing 2, the sound detector 5 extends into the movable chamber 3 and does not contact with a side of the movable chamber 3 close to an axis of the fire hydrant body 1, a fixed plate 6 is disposed above the sound detector 5, a movable plate 7 is closely attached to a side of the movable chamber 3 close to the axis of the fire hydrant body 1, a gap exists between the sound detector 5 and the movable plate 7, the fixed plate 6 contacts with the movable plate 7, and there is a gap between the fixed plate 6 and the movable plate 7 when the fire hydrant body 1 is disposed to avoid movement of the fixed plate 6 to the movable plate 7, and there is a gap between the fixed plate 6 and the movable plate 7 to prevent the movable plate 7 from moving the movable plate 7 The fire hydrant comprises a supporting effect, wherein a ball can be arranged at one end, close to a movable plate 7, of a fixed plate 6, the contact area between the fixed plate 6 and the movable plate 7 is reduced, friction is reduced, meanwhile, the fixed plate 6 can abut against the movable plate 7, the movable plate 7 is in close contact with the inner wall of a movable cavity 3, gaps are reduced, a sound generating device 8 is arranged above a first limiting plate 4, the upper surface of the sound generating device 8 is tightly attached to the bottom of a sound detector 5, the sound detector 5 is fixedly arranged inside a shell 2, a moving device 9 is fixedly arranged at the upper end of the movable plate 7, the moving device 9 is located on the inner side wall of a fire hydrant body 1, an alarm device 10 is fixedly arranged on the outer wall of the fire hydrant body 1, a protective cover 11 covers the outer cage of the alarm device 10, the protective cover 11 is fixedly arranged on the outer wall of the fire hydrant body 1, holes are formed in the outer wall of the protective cover 11 and are used for transmitting sound, the protective cover 11 is used for protecting the alarm device 10 and preventing the alarm device 10 from being damaged by external force.
Wherein, sound generating mechanism 8 includes first pipeline 81, sound generating mechanism 8 is the metal material, the inside cavity both ends opening of first pipeline 81, the inside central point of first pipeline 81 puts fixed mounting has flow distribution plate 82, the upper end of flow distribution plate 82 is the crest shape, and flow distribution plate 82's the vertical section shape is similar with the vase, flow distribution plate 82's upper end is equipped with the opening and is used for communicateing second pipeline 83, flow distribution plate 82's top extends to inside the second pipeline 83, one side that second pipeline 83 is close to movable plate 7 is equipped with the breather pipe, the lateral wall of movable plate 7 is hugged closely to the other end of breather pipe.
The movable plate 7 includes a plate body 71, the plate body 71 is an annular plate with a vertical section in an "L" shape, the plate body 71 is composed of a transverse plate and a vertical plate, the transverse plate of the plate body 71 penetrates through a side wall of the shell 2 close to the axis of the fire hydrant body 1, the plate body 71 extends into the fire hydrant body 1 and is fixedly installed with the moving device 9, the vertical plate of the plate body 71 is located inside the movable cavity 3, a second limiting plate 72 is arranged inside one end of the shell 2 contacting the transverse plate, a spring 73 is fixedly installed inside the second limiting plate 72, the other end of the spring 73 is fixedly installed at the bottom of the transverse plate, a first movable hole 74 is formed in the shell 2, the plate body 71 penetrates through the first movable hole 74 and extends into an inner cavity of the fire hydrant body 1, a left-right opening third air vent 75 is formed in one end of the plate body 71 close to the sound generating device 8, and the top of the upper end of the third air vent 75 is communicated with an L-shaped pipeline 76.
Wherein, the moving device 9 comprises an arc-shaped ring 91, the longitudinal section of the arc-shaped ring 91 is in a wave crest shape with a steep upper part and a steep lower part, the upper end and the lower end of the arc-shaped ring 91 are in smooth transition with the inner wall of the shell 2, the arc-shaped ring 91 is fixedly connected with the plate body 71, a fixed rod 92 is fixedly installed at one side of the upper end of the arc-shaped ring 91 close to the shell 2, the fixed rod 92 is in a T shape, the fixed rod 92 consists of a transverse plate and a vertical plate, referring to the movable cavity 3 in the figure, the vertical plate is perpendicular to the plane of the arc-shaped ring 91 close to the shell 2, the vertical plate is parallel to the plane of the arc-shaped ring 91 close to the shell 2, a second movable hole 93 is arranged at the position of the shell 2 aligned with the fixed rod 92, the shape of the second movable hole 93 is matched with the shape of the fixed rod 92, the transverse plate parallel to the fixed rod 92 can play a fixed effect, so as to avoid the overlarge gap between the arc-shaped ring 91 and the inner wall of the shell 2, and enable water in the fire hydrant body 1 to enter the movable cavity 3, affecting the operation of the internal structure.
The distance from the top of the first movable hole 74 to the upper surface of the horizontal plate of the plate body 71 is equal to the distance from the top of the second movable hole 93 to the upper surface of the vertical plate of the fixed rod 92.
Wherein, shell 2 includes casing 21, and casing 21 has been close to the inner wall of fire hydrant body 1 and has been seted up first air vent 22, and first air vent 22 position is close to third air vent 75, and casing 21 keeps away from the inside of fire hydrant body 1 and has been seted up second air vent 23, and the one end opening of flow distribution plate 82 is aimed at to second air vent 23 position.
The first vent hole 22, the third vent hole 75, the L-shaped pipeline 76, the sound generating device 8 and the second vent hole 23 are a group of sound devices, four groups of sound devices are arranged, the four groups of sound devices are uniformly distributed in the shell 2 along the circumferential direction of the axis of the fire hydrant body 1, an arc baffle plate with an opening at the lower end can be arranged outside the second vent hole 23, and external muddy garbage can be effectively prevented from blocking the second vent hole 23.
When the upper surface of the plate body 71 contacts with the top of the first movable hole 74, the first vent hole 22 is aligned with the third vent hole 75, and the L-shaped pipeline 76 is aligned with the opening of the vent pipeline on the second pipeline 83, when no water flows inside the hydrant body 1, no water pressure exists at the lower end of the arc-shaped ring 91, the third vent hole 75 is misaligned with the first vent hole 22, the plate body 71 blocks the first vent hole 22, when water flows inside the hydrant body, an upward thrust exists on the arc-shaped ring 91 due to the steeper lower end of the arc-shaped ring 91, the arc-shaped ring 91 overcomes the elastic force of the spring 73 to move upwards, the plate body 71 is driven to move upwards, when the water flows to the top end of the first movable hole 74, the first vent hole 22 is communicated with the third vent hole 75, according to bernoulli's principle, the flow rate is high, the pressure is low, and the gap of the first vent hole 22 is small, the pressure at the first vent hole 22 is small, a suction force is generated at the third vent hole 75, the airflow enters the diversion plate 82 through the second vent hole 23, the airflow in the diversion plate 82 is disturbed by the diversion plate 82, a part of the airflow enters the second pipeline 83, so that the air in the second pipeline 83 vibrates, so that the air impacts the metal inner wall of the second pipeline 83 to generate a sound signal, the sound detector 5 is used for detecting a signal on the second pipeline 83, the sound signal is different due to the difference between the water stealing speed and the fire extinguishing water speed, when the sound detector 5 detects the sound signal during water stealing, the sound signal is transmitted to the alarm device 10, the alarm device 10 alarms, and because the opening of the second vent hole 23 is small, the concealment performance on theft prevention is higher, meanwhile, the other part of the airflow flows from the first pipeline 81 to the third vent hole 75 under the guiding action of the top end of the diversion plate 82, because set up the vent pipe in one side of second pipeline 83, vent pipe and third air vent 75 intercommunication, when the air current passes through third air vent 75, can produce a suction to the air current of L type pipeline 76 department, produce a vortex effect to the inside air of second pipeline 83 for the inside air vibration of second pipeline 83 is bigger, makes sound detector 5 to the detection effect of the inside sound signal of second pipeline 83.
The using method of the invention is as follows:
when no water flow flows in the fire hydrant body 1, the plate body 71 blocks the first vent hole 22, when water flows in the fire hydrant body 1, an upward thrust exists on the arc-shaped ring 91 due to the steep lower end of the arc-shaped ring 91, the arc-shaped ring 91 overcomes the elastic force of the spring 73 to move upwards to drive the plate body 71 to move upwards, and when the fire hydrant body moves to the top end of the first movable hole 74, the first vent hole 22 is communicated with the third vent hole 75, the first vent hole 22 generates a suction force, so that external air flows into the fire hydrant body 1 through the second vent hole 23, the sound generating device 8, the third vent hole 75 and the first vent hole 22, air at the second vent hole 23 is disturbed by the diversion plate 82 in the first pipeline 81, and a part of air enters the second pipeline 83, so that the air in the second pipeline 83 vibrates to generate sound, is detected by the sound detector 5 above the second pipeline 83, and triggers the alarm device 10 to alarm when detecting the sound signal of water theft.
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 (3)
1. The utility model provides an anti-theft fire hydrant, includes fire hydrant body (1), its characterized in that: the fire hydrant body (1) comprises an outer shell (2) inside, a movable cavity (3) is formed in the outer shell (2), the movable cavity (3) is a rectangular ring in a longitudinal shape, a first limiting plate (4) is arranged at the bottom of the movable cavity (3), the first limiting plate (4) is fixedly installed in the outer shell (2), a sound detector (5) is arranged above the first limiting plate (4), the sound detector (5) is installed in the outer shell (2), the sound detector (5) extends into the movable cavity (3) and is not in contact with one side of the movable cavity (3) close to the axis of the fire hydrant body (1), a fixed plate (6) is arranged above the sound detector (5), and a movable plate (7) is tightly attached to one side of the movable cavity (3) close to the axis of the fire hydrant body (1), a gap exists between the sound detector (5) and the movable plate (7), the fixed plate (6) is in contact with the movable plate (7), a sound generating device (8) is arranged above the first limiting plate (4), the upper surface of the sound generating device (8) is tightly attached to the bottom of the sound detector (5), the sound detector (5) is fixedly installed inside the shell (2), a moving device (9) is fixedly installed at the upper end of the movable plate (7), the moving device (9) is located on the inner side wall of the fire hydrant body (1), an alarm device (10) is fixedly installed on the outer wall of the fire hydrant body (1), a protective cover (11) covers the outer cage of the alarm device (10), the protective cover (11) is fixedly installed on the outer wall of the fire hydrant body (1), and a hole is formed in the outer wall of the protective cover (11);
the sound production device (8) comprises a first pipeline (81), the sound production device (8) is made of metal, two hollow ends of the interior of the first pipeline (81) are open, a flow distribution plate (82) is fixedly mounted at the center of the interior of the first pipeline (81), the upper end of the flow distribution plate (82) is in a wave crest shape, an opening is formed in the upper end of the flow distribution plate (82) and used for communicating a second pipeline (83), the top end of the flow distribution plate (82) extends into the interior of the second pipeline (83), an air duct is arranged on one side, close to the movable plate (7), of the second pipeline (83), and the other end of the air duct is tightly attached to the side wall of the movable plate (7);
the moving device (9) comprises an arc-shaped ring (91), the longitudinal section of the arc-shaped ring (91) is in a wave crest shape with a gradual upper part and a steep lower part, the upper end and the lower end of the arc-shaped ring (91) are in smooth transition with the inner wall of the shell (2), the arc-shaped ring (91) is fixedly connected with the plate body (71), a fixing rod (92) is fixedly arranged at one side of the upper end of the arc-shaped ring (91) close to the shell (2), the fixing rod (92) is T-shaped, the fixing rod (92) consists of a transverse plate and a vertical plate, the vertical plate is vertical to the plane of the arc-shaped ring (91) close to the shell (2), the vertical plate is parallel to the plane of the arc-shaped ring (91) close to the shell (2), a second movable hole (93) is arranged at the position of the shell (2) aligned with the fixed rod (92), the shape of the second movable hole (93) is matched with that of the fixed rod (92);
the movable plate (7) comprises a plate body (71), the plate body (71) is an annular plate with an L-shaped longitudinal section, the plate body (71) is composed of a transverse plate and a vertical plate, the transverse plate of the plate body (71) penetrates through the side wall of the shell (2) close to the axis of the fire hydrant body (1), the plate body (71) extends to the inside of the fire hydrant body (1) and is fixedly installed with the moving device (9), the vertical plate of the plate body (71) is located inside the movable cavity (3), a second limiting plate (72) is arranged inside one end, contacted with the transverse plate, of the shell (2), a spring (73) is fixedly installed inside the second limiting plate (72), the other end of the spring (73) is fixedly installed at the bottom of the transverse plate, a first movable hole (74) is arranged on the shell (2), the plate body (71) penetrates through the first movable hole (74) and extends to the inner cavity of the fire hydrant body (1), a third air vent (75) with a left opening and a right opening is formed in one end, close to the sound generating device (8), of the plate body (71), and the top of the upper end of the third air vent (75) is communicated with an L-shaped pipeline (76);
the shell (2) comprises a shell (21), a first vent hole (22) is formed in the inner wall, close to the fire hydrant body (1), of the shell (21), the first vent hole (22) is located close to a third vent hole (75), a second vent hole (23) is formed in the shell (21) far away from the interior of the fire hydrant body (1), and the second vent hole (23) is located at one end, aligned with the flow distribution plate (82), of the opening;
when the upper surface of the plate body (71) is in contact with the top of the first movable hole (74), the first vent hole (22) is aligned with the third vent hole (75) in position, and the L-shaped pipe (76) is aligned with the opening of the vent pipe on the second pipe (83).
2. An anti-theft fire hydrant according to claim 1 in which: the distance from the top of the first movable hole (74) to the upper surface of the transverse plate of the plate body (71) is equal to the distance from the top of the second movable hole (93) to the upper surface of the vertical plate of the fixed rod (92).
3. An anti-theft fire hydrant according to claim 1 in which: the first vent hole (22), the third vent hole (75), the L-shaped pipeline (76), the sound generating device (8) and the second vent hole (23) are a set of sound devices, the sound devices are provided with four groups, and the four groups of sound devices are uniformly distributed in the shell (2) along the circumferential direction of the axis of the fire hydrant body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110060246.8A CN112885012B (en) | 2021-01-18 | 2021-01-18 | Anti-theft fire hydrant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110060246.8A CN112885012B (en) | 2021-01-18 | 2021-01-18 | Anti-theft fire hydrant |
Publications (2)
| Publication Number | Publication Date |
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| CN112885012A CN112885012A (en) | 2021-06-01 |
| CN112885012B true CN112885012B (en) | 2022-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110060246.8A Active CN112885012B (en) | 2021-01-18 | 2021-01-18 | Anti-theft fire hydrant |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725830A (en) * | 2017-11-01 | 2018-02-23 | 费先艳 | Self-expansion control method of fire hydrant based on Bernoulli principle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003049528A2 (en) * | 2001-12-07 | 2003-06-19 | Michael Zoratti | Fire hydrant anti-tamper device |
| CN204199378U (en) * | 2014-09-29 | 2015-03-11 | 陈少军 | A kind of burglar alarm fire plug |
| CN110393883B (en) * | 2019-08-28 | 2020-08-18 | 晋江市长胜电子科技有限公司 | Fire hydrant |
| CN210804664U (en) * | 2019-09-10 | 2020-06-19 | 湖南金龙智造科技股份有限公司 | Fire hydrant water theft prevention monitoring device |
| CN212229765U (en) * | 2020-04-18 | 2020-12-25 | 江苏勇启物联网有限公司 | Fire hydrant intelligence block area theftproof water alarm device |
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2021
- 2021-01-18 CN CN202110060246.8A patent/CN112885012B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725830A (en) * | 2017-11-01 | 2018-02-23 | 费先艳 | Self-expansion control method of fire hydrant based on Bernoulli principle |
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| CN112885012A (en) | 2021-06-01 |
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