CN115290258A - Fire hydrant detection system that leaks - Google Patents

Abstract

The invention discloses a fire hydrant water leakage detection system, which aims at solving the problem that the existing fire hydrant has a small amount of water leakage and is difficult to detect, and the technical scheme has the key points that: the fire hydrant cabinet comprises a cabinet body, wherein an inner cavity of the cabinet body is divided into an upper cavity and a lower cavity by a partition plate, a fire hydrant is arranged in the upper cavity, and the partition plate is provided with a plurality of water permeable holes; a water collecting tank is arranged in the lower layer cavity, the middle of the water collecting tank is concave downwards and is connected with a water collecting pipe; transparent detection jar is installed to the lower part of box, detects jar and collector pipe intercommunication, it has the detection piece that meets water and discolour to detect the jar intussuseption. The water leakage condition of the fire hydrant can be patrolled and observed in a water leakage color development mode, and the water leakage condition of the fire hydrant can be conveniently detected; meanwhile, the water leakage detection alarm module is matched to realize different sound and light alarms of different water leakage amounts, so that inspection personnel can conveniently detect the water leakage amount.

Description

Fire hydrant detection system that leaks

Technical Field

The invention relates to fire-fighting detection equipment, in particular to a fire hydrant water leakage detection system.

Background

At present, a device for detecting water leakage of the fire hydrant is characterized in that a detection module is installed in a fire pipeline, and the pressure inside the pipeline is changed, so that the water leakage conditions of the fire pipeline and the fire hydrant are detected and identified. For example, the chinese patent application CN109011304A discloses a fire hydrant system and a fire hydrant monitoring method, and belongs to the field of fire hydrant equipment. The fire hydrant system comprises a water supply pipe, a fire hydrant and a water stop valve, wherein the fire hydrant and the water stop valve are installed on the water supply pipe; the valve body is fixedly provided with a monitoring device, and the monitoring device comprises a sealing shell, a monitoring unit and a battery connecting terminal; the monitoring unit comprises a runner opening and closing state monitoring unit, a runner flow rate monitoring unit and/or a runner water pressure monitoring unit, a control module arranged in the sealed shell and a wireless communication unit controlled by the control module. At least one of the monitoring of the opening and closing state of the flow channel, the monitoring of the water pressure and the monitoring of the flow speed is integrated on the water stop valve, so that more effective information can be obtained, the misjudgment probability can be reduced, or the collection of useless monitoring information can be reduced, and the method can be widely applied to the fields of fire hydrants, buildings and the like.

For another example, chinese patent publication No. CN108653967B discloses a fire hydrant water leakage monitoring system, which includes a sensor module, a control module, a communication module, and a power module; the sensor module, the communication module and the power module are integrated into a fire hydrant water leakage monitoring and automatic positioning alarm device, and the fire hydrant water leakage monitoring device is detachably mounted at a fire hydrant interface.

In the prior art, although the water leakage condition of the fire hydrant can be detected, the water leakage condition with larger leakage amount can only be detected, and the method is suitable for monitoring the condition that the fire hydrant needs emergency repair after being damaged; but cannot be used in the case of fire hydrant with a small amount of water leakage, such as water leakage and seepage.

In the middle of the present city, in the middle of each mansion, office building, market or residential quarter, all install this a large amount of fire hydrants, its the biggest problem of leaking is not leaked by a large amount after being destroyed, but because the installation, improper or product quality defect in the maintenance process, and produce and leak, the infiltration problem, the volume of leaking is often all little, probably the water leakage quantity of every day is between tens to hundreds of milliliters, slowly reveal difficult the perception, accumulate in every day, not only cause the waste of water resource, and leak and not in time maintain and still can influence influences such as fire control facility rust damage.

Therefore, a new solution is needed to solve this problem.

Disclosure of Invention

The invention aims to solve the problems and provides a fire hydrant water leakage detection system which can conveniently detect the water leakage condition of a fire hydrant.

The technical purpose of the invention is realized by the following technical scheme: a fire hydrant water leakage detection system comprises a box body, wherein an inner cavity of the box body is divided into an upper layer cavity and a lower layer cavity through a partition plate, a fire hydrant is arranged in the upper layer cavity, and the partition plate is provided with a plurality of water permeable holes; a water collecting tank is arranged in the lower layer cavity, the middle of the water collecting tank is concave downwards and is connected with a water collecting pipe; transparent detection jar is installed to the lower part of box, detects jar and collector pipe intercommunication, it has the detection piece that meets water and discolour to detect the jar intussuseption.

Furthermore, the upper end of the detection tank is opened and is covered by an end cover; the opening of the detection tank is sealed with the end cover through a sealing element; the middle of the end cover is provided with a connecting pipe which is communicated up and down, the bottom of the box body is provided with a connecting hole, the connecting pipe penetrates through the connecting hole, and the lower end of the water collecting pipe is inserted into the connecting pipe.

Furthermore, a support ring is arranged on the periphery of the connecting pipe corresponding to the upper side of the end cover, an external thread is arranged at the upper end of the connecting pipe corresponding to the position inserted into the lower cavity, a threaded sleeve is connected to the upper end of the connecting pipe in a threaded manner, and the threaded sleeve and the support ring are respectively pressed on the upper side and the lower side of the lower wall of the box body to realize the fixed connection of the connecting pipe and the box body.

Further, the support ring and the box body are sealed through a sealing piece; the annular is seted up to interior peripheral position of thread bush lower extreme, the annular is opened downwards, and the through-hole one of the inside and outside both sides of intercommunication is seted up to thread bush lower extreme periphery, the through-hole one is opened downwards.

Furthermore, the lower end of the connecting pipe is connected with an extension pipe extending to the bottom of the detection tank, and a gap is formed between the extension pipe and the lower part of the detection tank; the extension pipe and the inner periphery of the detection pipe form an annular cavity, and the detection blocks are arranged in the annular cavity in an up-and-down stacked mode.

Furthermore, the detection blocks comprise detection pieces and supporting pieces fixedly connected to the upper side and the lower side of the detection pieces, the detection pieces can change colors with water, the detection blocks stacked up and down are supported by the supporting pieces, and gaps are formed between the adjacent detection blocks; the supporting piece is provided with a plurality of water through holes which are communicated up and down.

Furthermore, the detection piece and the support piece are both in an annular shape sleeved on the periphery of the connecting pipe. The detection piece is permeable material, and the detection piece is internally provided with a water-encountering color-developing agent. The detection piece can adopt a sponge block or a fabric block, so that the detection piece can have a water permeable effect. The water color developing agent in the detection piece can adopt anhydrous copper sulfate powder and is added into the detection piece, so that the detection piece can develop color after contacting water; or reagents such as phenolphthalein and the like can be used for developing color, the detection block is soaked in the detection reagent in advance, then is dried and dehydrated, powder with corresponding acidity and alkalinity is added into the detection piece, and after the detection piece is soaked in water, the powder is dissolved in the water, and then the color developing reagent can be developed to present a color developing indication of water leakage.

Further, the bottom of detection jar sets up detection module one, and the top in the annular cavity sets up detection module two, detection module one and detection module two are the switch that can meet water and switch on to connect alarm device respectively. The first detection module and the second detection module respectively comprise a water permeable block and two conduction terminals, one end of each conduction terminal is coupled with the alarm device, the other end of each conduction terminal is inserted into the water permeable block, and the two conduction terminals are kept to be separated.

Furthermore, the top of the extension pipe corresponding to the annular cavity is provided with an air guide hole, and the air guide hole balances the air pressure in the annular cavity; and the inner periphery of the extension pipe is provided with a water-resisting sleeve component which is used for shielding the upper side of the air guide hole.

Furthermore, the waterproof sleeve assembly comprises a fixed sleeve and a movable sleeve, the periphery of the upper end of the fixed sleeve is provided with a fixed ring fixedly connected with the inner periphery of the fixed extension pipe, and the lower end of the fixed sleeve is positioned on the upper side of the air guide hole; an annular gap with a closed upper side and an opened lower side is formed between the fixed sleeve and the extension pipe; the movable sleeve is sleeved on the periphery of the lower end of the fixed sleeve and can be adjusted in a vertically floating manner;

furthermore, a first connecting convex ring is arranged on the periphery of the lower end of the fixed sleeve, a second connecting convex ring is arranged in the upper end of the movable sleeve, and the first connecting convex ring and the second connecting convex ring are mutually abutted and pressed for limiting the moving stroke; when the upper end surface of the movable sleeve abuts against the fixed ring, the movable sleeve is positioned at the uppermost end of the stroke, and the lower end edge of the movable sleeve is higher than the lower edge of the air guide hole; when the second connecting convex ring of the movable sleeve is abutted against the first connecting convex ring, the movable sleeve is positioned at the lowest end of the stroke, and the edge of the lower end of the movable sleeve is lower than the lower edge of the air guide hole;

furthermore, the lower extreme of activity cover is connected a plurality of lugs that extend, extend the logical groove that the stroke supplied ponding to permeate between the lug.

In conclusion, the invention has the following beneficial effects:

collect through adopting to concentrate to the cooperation is transparent to be detected the water chromogenic reaction of the detection piece of meeting water color development in the middle of the jar, ponding that assembles in the middle of the water catch bowl can flow into and detect the jar in the middle of, detects the piece and can meet water color change, detects the water that spills in the piece meets the fire hydrant and will change color, makes to appear in the middle of the detection jar and locates the obvious color development condition, makes things convenient for the inspection personnel to observe the fire hydrant condition of leaking. Compare in the volume that direct observation catchments, the condition of leaking can be directly acquireed from the colour to the color development piece that discolours, and the easier discernment is convenient inspection personnel's the look over.

A laminated detection block filling structure from bottom to top is formed in the annular detection cavity in the detection tank; the water leakage amount in the detection tank can be judged according to the color development condition of the detection block by matching with the water injection form of the extension pipe from bottom to top in the annular cavity; and set up the structure of air guide through the upper end at the annular chamber for can realize intaking steadily and smoothly in the middle of the annular chamber, thereby can make and detect the jar in the middle of can judge more steadily accurately that detect the jar how much of the interior ponding that leaks of jar, conveniently detect and look over.

Drawings

FIG. 1 is a schematic structural diagram of a fire hydrant water leakage detection system according to the present invention;

FIG. 2 is a schematic view of the mounting structure of the inspection tank of the present invention;

FIG. 3 is an enlarged view of a portion of the test canister of the present invention;

FIG. 4 is a first schematic structural view of a water jacket assembly according to the present invention;

FIG. 5 is a second schematic structural view of the water jacket assembly of the present invention;

FIG. 6 is a first schematic structural diagram of a detection block according to the present invention;

FIG. 7 is a second schematic structural diagram of a detection block according to the present invention;

fig. 8 is a schematic structural diagram of a detection module according to the present invention.

Reference numerals: 1. a box body; 2. a partition plate; 3. water permeable holes; 4. an upper cavity; 5. a lower cavity; 51. connecting holes; 6. a fire hydrant; 7. a water collection tank; 8. a support block; 9. a water collection pipe; 10. a detection tank; 11. an end cap; 12. a connecting pipe; 13. an extension pipe; 14. detecting a block; 15. a support ring; 16. a threaded sleeve; 17. a seal member; 18. a first through hole; 19. a ring groove; 20. a second through hole; 21. a first detection module; 22. a second detection module; 23. an annular cavity; 24. a gas-guide hole; 25. fixing a sleeve; 26. a movable sleeve; 27. an extension bump; 28. a through groove; 29. a water permeable block; 30. a conduction terminal; 251. a fixing ring; 252. connecting the convex ring I; 253. an annular gap; 261. connecting a convex ring II; 141. a support member; 142. a detection member; 143. water passing holes; 144. and (7) sealing sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The embodiment discloses a fire hydrant water leakage detection system, which comprises a box body 1, wherein the inner cavity of the box body 1 is divided into an upper-layer cavity 4 and a lower-layer cavity 5 by a partition plate 2, wherein the upper-layer cavity 4 is larger and is used for installing a fire hydrant 6 and placing various fire-fighting equipment; the lower floor is less interlayer, sets up the hole 3 of permeating water of densely covered on baffle 2, can supply to follow the water that spills in the middle of fire hydrant 6 in the middle of to lower floor's chamber 5, at lower floor's chamber 5 installation water catch bowl 7, the upper shed of water catch bowl 7 is great, the cover sets up the position in hole 3 of permeating water at baffle 2, can collect the water that flows out in the middle of the upper chamber 4, it is similar back taper structure to sink to be sunken in the middle of the water catch bowl 7, middle sunken department connects collector pipe 9, can be with leaking water and collect through collector pipe 9.

A detection tank 10 is installed on the lower portion of the box body 1, the detection tank 10 is communicated with the lower end of the water collecting pipe 9, and accumulated water gathered in the water collecting tank 7 can flow into the detection tank 10. The detection tank 10 is made of a transparent material, such as glass or a transparent plastic material, and can be seen from the outside to the inside. It has detection piece 14 to detect the packing in the middle of the inner chamber of jar 10, detects piece 14 and can meet water and discolour, detects piece 14 and meets the water that spills in fire hydrant 6 and will discolour for present the obvious colour development condition in the middle of detecting jar 10, make things convenient for the inspection personnel to observe the fire hydrant 6 condition of leaking. Compared with the method of directly observing the amount of collected water, the color-changing color development block can directly acquire the water leakage condition from the color, and is easier to identify; moreover, because the detection tank 10 is made of transparent materials, in the middle of the detection tank 10, the accumulated water exists, the color of the accumulated water is close to that of the accumulated water, if the observation deviation condition possibly exists in the color-free mark, the color display block can play a more obvious prompting role, and the inspection of the inspection personnel is greatly facilitated.

As shown in fig. 2, the detection tank 10 is open at the upper end and is covered at the opening by an end cover 11; the end cover 11 and the detection tank 10 are connected in a threaded connection mode to form a detachable structure, a sealing piece 17 is installed between the end cover and the detection tank 10, sealing is achieved through the sealing piece 17, and therefore seeper water which leaks is avoided from leaking out of the detection tank 10.

The bottom of the box body 1 is provided with a connecting hole 51, and the connecting hole 51 corresponds to the position below the water collecting pipe 9; a vertically penetrating connection pipe 12 is installed in the middle of the end cover 11, the outer circumference of the connection pipe 12 and the end cover 11 are fixed to each other, and a sealing structure is formed, so that water can be supplied only through the connection pipe 12 to the end cover 11. The connecting pipe 12 extends upwards through the connecting hole 51 and extends into the lower cavity 5, the lower end of the water collecting pipe 9 is inserted into the connecting pipe 12, accumulated water gathered in the water collecting pipe 9 can be converged into the detection tank 10, and the effect of water leakage gathering and metering is achieved.

A support ring 15 is fixed on the outer circumference of the connecting pipe 12 at a position corresponding to the upper side of the end cover 11, and an external thread is formed on the upper end of the connecting pipe 12 at a position corresponding to the insertion of the lower chamber 5. The upper end of the connecting pipe 12 is connected with a threaded sleeve 16 in a threaded manner, the threaded sleeve 16 and the support ring 15 are respectively pressed against the upper side and the lower side of the lower wall of the box body 1 and screwed tightly through threads to form a clamping structure at the bottom of the box body 1, so that the connecting pipe 12 is fixedly connected with the box body 1; meanwhile, a threaded connection structure is formed, and the detection tank 10 can be conveniently disassembled and assembled by matching the structure that the connecting pipe 12 and the water collecting pipe 9 are sleeved with each other.

In the water leakage process of the fire hydrant 6, partial water leakage is not borne by the water collecting tank 7 and directly drops to the bottom of the lower cavity 5, so that the connection structure between the detection pipe and the box body 1 can be improved, and the detection tank 10 can bear accumulated water in the lower cavity 5. An annular sealing groove is formed in the upper end face of the supporting ring 15, a sealing element 17 is installed in the sealing groove, a sealing structure between the supporting ring 15 and the box body 1 is formed, the bottom of the lower-layer cavity 5 can be in a relatively sealed state, and accumulated water cannot drip from a gap between the connecting pipe 12 and the connecting hole 51.

As shown in fig. 3, a ring groove 19 is formed in the lower end inner periphery of the screw sleeve 16, and the ring groove 19 is open downward and inward. The periphery of the lower end of the threaded sleeve 16 is provided with a first through hole 18 which is communicated with the inner side and the outer side, and the first through hole 18 not only penetrates through the peripheral surfaces of the inner side and the outer side, but also is opened downwards. A plurality of second through holes 20 are formed in the position, extending into the lower-layer cavity 5, of the connecting pipe 12, the second through holes 20 are uniformly distributed on the periphery of the connecting pipe 12 in an annular mode, the lower edge of each second through hole 20 is lower than the bottom surface of the lower-layer cavity 5, and the upper edge of each second through hole 20 is higher than the ring groove 19. Through-hole 18, mutually supporting of annular 19 and two 20 through-holes, can form the water guide passageway that link up between the interior outer wall of thread bush 16 and connecting pipe 12, make ponding in the middle of the 5 bottoms in lower floor's chamber can follow through-hole 18, annular 19 and two 20 through-holes circulate in the middle of connecting pipe 12, make ponding in the middle of the 5 middle of lower floor's chamber also can be collected in the middle of detecting jar 10, not only can reduce the ponding in the box 1, but also can increase the confluence of leaking, improve the accuracy of collecting the detection of leaking.

In order to make things convenient for ponding among the lower chamber 5 to converge to connecting pipe 12 when in, can also set up the bottom that is the slope state with box 1 to be the lowest of box 1 bottom in the position of installation connecting pipe 12, and then can make things convenient for the direction of rivers and assemble.

As shown in fig. 2, an extension pipe 13 is connected to the lower end of the connection pipe 12, and the extension pipe 13 is an extension section of the connection pipe 12 extending into the detection pipe; the extension pipe 13 extends into the bottom of the test canister 10 and forms a gap with the bottom of the test canister 10. The accumulated water introduced from the connection pipe 12 smoothly flows down along the extension pipe 13.

An annular cavity 23 is formed on the inner peripheries of the extension pipe 13 and the detection pipe, the detection block 14 in the detection tank 10 is arranged in the annular cavity 23 in an up-and-down laminating manner, the accumulated water flowing into the detection tank 10 can rise from the bottom relatively gently, and the detection block 14 is immersed and developed color layer by layer from bottom to top; because the detection block 14 is separated in the annular cavity 23 on the periphery of the extension pipe 13, water dripping from the extension pipe 13 cannot enter the detection block 14 on the upper layer by mistake, but soaks the detection block 14 in the rising process of the lower net, accumulated water rises, and the detection block 14 is colored to the approximate height position, so that the accuracy of color indication of the detection block 14 can be greatly improved.

As shown in fig. 2 and 6, the detecting block 14 includes a detecting member 142 and supporting members 141 fixedly connected to upper and lower sides of the detecting member 142, wherein the detecting member 142 is discolorable with water, the detecting member 142 is made of a water-permeable material, and a water-encountering color agent is disposed inside the detecting member 142; for example, the detecting member 142 may be a sponge block or a fabric block, which can have a water-permeable effect. The internal water color developing agent can adopt anhydrous copper sulfate powder and is added into the detection piece 142, so that the detection piece can develop color after contacting water; or reagents such as phenolphthalein can be used for color development, the detection block 14 is soaked in the detection reagent in advance, then is dried and dehydrated, powder with corresponding acidity and alkalinity is added into the detection piece 142, and after the detection piece 142 is soaked in water, the powder is dissolved in the water, and then the color development reagent can be developed to show a color development indication of water leakage.

The supporting members 141 are bonded at the positions of the two sides of the detecting member 142, the detecting blocks 14 which are stacked up and down are supported by the supporting members 141, gaps are formed between the adjacent detecting blocks 14, the detecting blocks 14 which are arranged up and down can be separated from each other, the phenomenon that the upper detecting block 14 is wetted and develops color due to contact permeation generated between the stacked detecting blocks 14 is avoided, and the occurrence of color development deviation is avoided. And a plurality of water through holes 143 are formed in the supporting member 141, and the water through holes 143 allow the rising accumulated water to flow upward, so that the water flow can smoothly flow.

The detecting member 142 and the supporting member 141 are both annular and are sleeved on the outer periphery of the connecting pipe 12, and can be adapted to the specific shapes of the annular cavity 23 and the detection tank 10, and can form a larger color development position on the outer periphery of the detection tank 10.

As shown in fig. 7, sealing sleeves 144 may be sleeved on the inner and outer peripheries of the annular detection block 14, the sealing sleeves 144 are made of rubber materials, and can be pressed between the support ring 15 and the inner wall of the detection tank 10 to form an outer-periphery relative seal, and can be pressed between the support ring 15 and the outer periphery of the extension pipe 13 to form an inner-periphery relative seal; therefore, the accumulated water can only flow through the water holes 143 on the supporting block 8, and the influence caused by the fluctuation of the water flow generated by shaking or splashing can be reduced.

As shown in fig. 3 and 4, air vents 24 are opened in the extension pipe 13 at positions corresponding to the top of the annular chamber 23. Although the extension pipe 13 extends to the bottom position of the detection tank 10, the situation that the color of the upper detection block 14 is erroneously developed by the splashed water can be reduced, when the water is hidden from the lowest end of the extension pipe 13, the water cannot be continuously injected into the annular cavity 23 due to the influence of the air pressure of the annular cavity 23 because of the relative sealing of the annular cavity 23.

The air holes 24 can balance the air pressure inside the annular cavity 23 during the process of water inlet at the bottom of the annular cavity 23, so that the water flowing out of the extension pipe 13 at the bottom of the annular cavity 23 can smoothly enter the annular cavity 23.

In order to avoid the condition that the detection block 14 on the upper side of the annular cavity 23 is wrongly colored because the drip water hanging on the wall in the extension pipe 13 flows from the air guide hole 24 to the upper side position of the annular cavity 23; particularly, when the detection tank 10 is inclined, the accumulated water flowing from the extension pipe 13 will directly enter the air guide hole 24 along the wall of the extension pipe 13 and further directly enter the annular detection cavity, which will cause the color-developing false alarm of the upper detection block 14.

The water stop sleeve assembly is arranged on the inner periphery of the extension pipe 13, can shield the upper side and the inner periphery of the air guide hole 24, and only an opening towards the opening is formed between the water stop sleeve assembly and the inner periphery of the extension pipe 13, so that the air guide effect of the water guide hole can be realized, the air guide hole 24 can be shielded, and the condition that water enters the air guide hole 24 from the extension pipe 13 by mistake to generate color display by mistake is avoided.

As shown in fig. 3 and 4, the water stop sleeve assembly includes a fixed sleeve 25 and a movable sleeve 26, wherein the upper end outer periphery of the fixed sleeve 25 is fixed at the inner periphery of the extension pipe 13, and a fixed ring 251 is fixedly connected between the fixed sleeve 25 and the extension pipe 13 to connect the fixed sleeve 25 inside the extension pipe 13. And the lower end of the fixing sleeve 25 is positioned at the upper side of the air guide hole 24 so that the fixing sleeve 25 does not directly cover the air guide hole 24.

An annular gap 253 having a closed upper side and an open lower side is formed between the fixing sleeve 25 and the extension pipe 13. The movable sleeve 26 is movably mounted, and is sleeved on the periphery of the lower end of the fixed sleeve 25, i.e. extends into the annular gap 253, and can be adjusted in a floating manner. The movable sleeve 26 can be downward and shielded at the position of the air guide hole 24, so that the condition that the air guide hole 24 is mistakenly filled with water is realized. A first connecting convex ring 252 is formed on the periphery of the lower end of the fixed sleeve 25, a second connecting convex ring 261 is formed in the upper end of the movable sleeve 26, and the first connecting convex ring 252 and the second connecting convex ring 261 are pressed against each other to limit the up-and-down stroke of the movable sleeve 26.

As shown in fig. 4, when the accumulated water in the detection tank 10 is small, the movable sleeve 26 is located at the lowest end position under the influence of gravity, at this time, the second connecting convex ring 261 of the movable sleeve 26 abuts against the first connecting convex ring 252, and the movable sleeve 26 is located at the lowest end of the stroke; the lower end edge of the movable sleeve 26 is lower than the lower edge of the air guide hole 24, that is, the movable sleeve 26 can be shielded on the outer side and the upper side of the air guide hole 24, and water can be prevented from entering the air guide hole 24.

When the water in the detection tank 10 rises, the movable sleeve 26 starts to float upwards, although the lowest end of the movable sleeve 26 is immersed in the water, after the movable sleeve 26 floats, air can flow through a gap between the movable sleeve 26 and the fixed sleeve 25, then the air guide hole 24 can still realize the exchange of air flow, and water is continuously injected into the detection tank 10. Through the movable sleeve 26, a floating water-resisting structure can be formed later, a floating type adjusting air guide structure is formed, and accumulated water can be stably collected all the time.

As shown in fig. 5, when the water in the detection tank 10 continues to rise and the movable sleeve continues to float upwards until the upper end surface of the movable sleeve 26 abuts against the fixed ring 251, the movable sleeve 26 is located at the uppermost end of the stroke, and the lower end edge of the movable sleeve 26 is higher than the lower edge of the air-guide hole 24, so that the air-guide hole 24 is directly projected into the inner cavity of the extension pipe 13. At this time, the accumulated water in the detection tank 10 is close to a full state, and the water can directly enter and exit from the air guide hole 24, so that the accumulated water can be collected in the detection pipe as much as possible.

The lower end of the movable sleeve 26 is connected with a plurality of extending lugs 27, a through groove 28 for seeper to penetrate is arranged between the extending lugs 27, and the through groove 28 does not influence the water flow and has the effect of shielding the water guide hole; the extending projection 27 can increase the buoyancy of the movable sleeve 26, so that the movable sleeve 26 can float more easily in the process of water level rising, and flexible up-and-down adjustment of the movable sleeve 26 is realized.

On the basis of the color development, a first detection module 21 and a second detection module 22 can be additionally arranged in the detection tank 10, and the first detection module 21 and the second detection module 22 are switches which can be conducted in the presence of water and are respectively connected with an alarm device. When ponding when detecting jar 10 in rises to corresponding detection module, the inside switch-on of detection module, and then the switch-on corresponds alarm device, and alarm device work sends out the police dispatch newspaper, plays the effect of suggestion.

The first detection module 21 and the second detection module 22 have the same structure, and as shown in fig. 8, both include a water permeable block 29 and two conduction terminals 30, wherein the water permeable block 29 may be made of sponge or plastic, and can be permeable to water from inside and outside; the two conduction terminals 30 are inserted into the water permeable block 29 and keep the two conduction terminals 30 separated; the other end of the conduction terminal 30 is coupled to an alarm device, so that the on/off of the conduction terminal 30 can control the operation of the alarm device. When the water-permeable block 29 is immersed in water, two conducting terminals 30 are conducted and closed in the water, and the control function is achieved.

The first detection module 21 is arranged at the bottom of the detection tank 10 and can be arranged at the lower end of the extension pipe 13, and when water starts to enter the detection tank 10, the first detection module 21 can be communicated; the alarm device connected with the detection module I21 can be a prompting lamp, and a more obvious prompting effect can be achieved through the indication of the prompting lamp; the warning light may be wired away from the hydrant 6 housing 1, for example in a monitoring room.

The second detection module 22 can be installed at the top position in the annular cavity 23, so that the alarm prompt can be performed when the detection tank 10 is filled up quickly; the alarm device connected with the second detection module 22 may not be an audible alarm device, and can more obviously generate an alarm prompt for the inspection personnel to check.

In the process of patrolling, when a patrolman finds that accumulated water in the detection tank 10 is displayed, the patrolling personnel can mainly patrol the fire hydrant 6 with the hidden water leakage danger, can pour out the accumulated water in the detection tank 10 in the process of patrolling, disassemble and replace the detection block 14 which needs to be replaced, and can observe whether the situation of water leakage increase exists in the process of regularly patrolling. Since the second detection module 22 is located at a high position in the detection tank 10, when the second detection module 22 is triggered, the condition of large water leakage is also indicated, and a sound alarm with a larger alarm effect can prompt a patrol worker or other workers to deal with the situation.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and all technical solutions that belong to the idea of the present invention belong to the scope of the present invention. It should be noted that modifications and adaptations to those skilled in the art without departing from the principles of the present invention should also be considered as within the scope of the present invention.

Claims (10)

1. The fire hydrant water leakage detection system is characterized by comprising a box body (1), wherein the inner cavity of the box body (1) is divided into an upper-layer cavity (4) and a lower-layer cavity (5) through a partition plate (2), a fire hydrant (6) is arranged in the upper-layer cavity (4), and a plurality of water permeable holes (3) are formed in the partition plate (2); a water collecting tank (7) is arranged in the lower layer cavity (5), the middle of the water collecting tank (7) is concave downwards and is connected with a water collecting pipe (9); transparent detection jar (10) are installed to the lower part of box (1), detect jar (10) and collector pipe (9) intercommunication, it is filled with detection piece (14) that meet water discolour to detect jar (10) intussuseption.

2. The fire hydrant water leakage detecting system according to claim 1, wherein the upper end of the detecting tank (10) is opened and is covered by an end cover (11); the opening of the detection tank (10) is sealed with the end cover (11) through a sealing element (17); the middle of the end cover (11) is provided with a connecting pipe (12) which is communicated up and down, the bottom of the box body (1) is provided with a connecting hole (51), the connecting pipe (12) penetrates through the connecting hole (51), and the lower end of the water collecting pipe (9) is inserted into the connecting pipe (12).

3. The fire hydrant water leakage detection system according to claim 2, wherein a support ring (15) is arranged on the periphery of the connecting pipe (12) corresponding to the upper side position of the end cover (11), an external thread is arranged on the upper end of the connecting pipe (12) corresponding to the position inserted into the lower cavity (5), a threaded sleeve (16) is connected to the upper end of the connecting pipe (12) in a threaded manner, and the threaded sleeve (16) and the support ring (15) are respectively pressed against the upper side and the lower side of the lower wall of the box body (1) to realize the fixed connection of the connecting pipe (12) and the box body (1).

4. A fire hydrant water leakage detecting system according to claim 3 characterized in that the sealing between said support ring (15) and the tank (1) is achieved by means of a sealing member (17); annular groove (19) are seted up to interior peripheral position of thread bush (16) lower extreme, annular groove (19) open down, and through-hole (18) of inside and outside both sides of intercommunication are seted up to thread bush (16) lower extreme periphery, through-hole (18) open down.

5. The fire hydrant water leakage detecting system according to claim 2, wherein the lower end of the connecting pipe (12) is connected with an extension pipe (13) extending to the bottom of the detecting tank (10), and a gap is formed between the extension pipe (13) and the lower part of the detecting tank (10); an annular cavity (23) is formed by the extension pipe (13) and the inner periphery of the detection pipe, and the detection block (14) is arranged in the annular cavity (23) in an up-and-down stacked mode.

6. The fire hydrant water leakage detecting system according to claim 5, wherein the detecting block (14) includes a detecting member (142) and a supporting member (141) fixedly connected to upper and lower sides of the detecting member (142), the detecting member (142) is discolorable with water, the detecting blocks (14) stacked up and down are supported by the supporting member (141), and a gap is formed between adjacent detecting blocks (14); the supporting piece (141) is provided with a plurality of water through holes (143) which are vertically communicated.

7. The fire hydrant water leakage detecting system according to claim 6, wherein the detecting member (142) and the supporting member (141) are both ring-shaped and are sleeved on the outer circumference of the connecting pipe (12).

8. The fire hydrant water leakage detecting system according to claim 5, wherein a first detecting module (21) is arranged at the bottom of the detecting tank (10), a second detecting module (22) is arranged at the top in the annular cavity (23), and the first detecting module (21) and the second detecting module (22) are switches which can be conducted in water and are respectively connected with an alarm device; the detection module I (21) and the detection module II (22) respectively comprise a water permeable block (29) and two conduction terminals (30), one end of each conduction terminal (30) is coupled with the alarm device, the other end of each conduction terminal is inserted into the water permeable block (29), and the two conduction terminals (30) are kept to be separated.

9. The fire hydrant water leakage detecting system according to claim 5, wherein the extension pipe (13) is provided with an air vent (24) corresponding to the top position of the annular cavity (23), and the air vent (24) balances the air pressure in the annular cavity (23); the inner periphery of the extension pipe (13) is provided with a water stop sleeve assembly, and the water stop sleeve assembly is used for shielding the upper side of the air guide hole (24).

10. The fire hydrant water leakage detecting system according to claim 9, wherein the water stop sleeve assembly comprises a fixed sleeve (25) and a movable sleeve (26), a fixed ring (251) fixedly connected with the inner circumference of the fixed extension pipe (13) is arranged on the outer circumference of the upper end of the fixed sleeve (25), and the lower end of the fixed sleeve (25) is positioned on the upper side of the air guide hole (24); an annular gap (253) with a closed upper side and an opened lower side is formed between the fixed sleeve (25) and the extension pipe (13); the movable sleeve (26) is sleeved on the periphery of the lower end of the fixed sleeve (25) and can be adjusted in a vertically floating manner;

the periphery of the lower end of the fixed sleeve (25) is provided with a first connecting convex ring (252), the upper end of the movable sleeve (26) is internally provided with a second connecting convex ring (261), and the first connecting convex ring (252) and the second connecting convex ring (261) are mutually pressed to limit the moving stroke; when the upper end surface of the movable sleeve (26) is abutted against the fixed ring (251), the movable sleeve (26) is positioned at the uppermost end of the stroke, and the lower end edge of the movable sleeve (26) is higher than the lower edge of the air guide hole (24); when the second connecting convex ring (261) of the movable sleeve (26) is abutted against the first connecting convex ring (252), the movable sleeve (26) is located at the lowest end of the stroke, and the lower end edge of the movable sleeve (26) is lower than the lower edge of the air guide hole (24);

the lower end of the movable sleeve (26) is connected with a plurality of extending lugs (27), and through grooves (28) for seeper to penetrate are formed in the stroke between the extending lugs (27).

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