A hydrant leak detection apparatus

Abstract

The utility model relates to a fire -fighting equipment technical field, concretely is a kind of fire hydrant water leakage detection equipment, including fire hydrant box, water-collecting cover and second plug, the water-collecting cover is arranged on the outer wall of fire hydrant box lower end, the water-collecting cover lower end outer wall is welded with water storage pipe, the water storage pipe inside upper end is connected with first plug with thread, the water storage pipe inside lower end is connected with second plug with thread, the second plug upper end is provided with support plate, the support plate upper end is provided with support column, the support column upper end is welded with piston plate, the support plate outer wall one side is welded with guide rod, the guide rod end bolt connection has extension rod, the extension rod end screw connection has warning sign, warning sign that protrudes from the outside of fire hydrant box can reach the purpose of warning staff, help staff to be able to promptly understand the sealing state of fire hydrant, to realize the purpose of detecting the water leakage state of warning sign.

Description

Technical Field

[0001] This utility model relates to the field of fire protection facilities technology, specifically to a fire hydrant leakage detection device. Background Technology

[0002] Fire hydrants are fixed fire-fighting facilities, mainly divided into indoor fire hydrants and outdoor fire hydrants. Indoor fire hydrants are fixed indoor fire-fighting facilities that supply water to the fire scene through interfaces with valves. They are usually installed in fire hydrant boxes and consist of a fire hydrant, a fire hose, and a water nozzle. However, when fire hydrants are not used for a long time, their internal sealing structure will age and become damaged, resulting in water leakage. Therefore, fire hydrants need to be checked for their sealing status using leakage detection equipment.

[0003] CN220237652U discloses a fire protection facility leakage detection device. The device includes: a fire cabinet with a leakage tank fixedly installed on its bottom inner wall; a fire hydrant located inside the cabinet and above the leakage tank; a leakage detection mechanism mounted on the leakage tank; and a wastewater treatment mechanism mounted on the fire cabinet. This device offers the advantages of detecting and issuing alarms for leaks, as well as treating leaked wastewater.

[0004] While existing fire hydrants offer numerous benefits during use, they still suffer from several drawbacks. Their leak detection capabilities are inadequate, requiring the assistance of electrical equipment for detection. This results in higher operating and maintenance costs, hindering the effective use of the equipment. Utility Model Content

[0005] To address the problems in the existing technology, this utility model provides a fire hydrant leakage detection device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a fire hydrant leakage detection device, including a fire hydrant box, a water-collecting cover, and a second plug. The water-collecting cover is provided on the lower outer wall of the fire hydrant box, and a water storage pipe is welded to the lower outer wall of the water-collecting cover. A first plug is threaded to the upper end of the water storage pipe, and a second plug is threaded to the lower end of the water storage pipe. A support plate is provided at the upper end of the second plug, and a support column is provided at the upper end of the support plate. A piston plate is welded to the upper end of the support column. A guide rod is welded to one side of the outer wall of the support plate, and an extension rod is pinned to the end of the guide rod. A warning sign is screwed to the end of the extension rod.

[0007] By adopting the above technical solution, the water-collecting cover can effectively collect water leaking from the hydrant head inside the fire hydrant box, preventing the leaked water from spreading and enabling centralized monitoring of leaks. The leaked water, after being collected by the water-collecting cover, flows into the water storage pipe and then flows through the permeable holes to the upper part of the piston plate. The water-absorbing and expanding rubber absorbs the leaked water and expands. The expanded water-absorbing and expanding rubber squeezes the piston plate, causing the piston plate, guide rod, and support plate to move vertically downwards. As the support plate carries the guide rod and moves inside the slide groove, it will rotate at an angle according to the shape of the slide groove, causing the extension rod and warning sign to detach from the lower end of the water-collecting cover and be in a relatively vertical state. The warning sign extending outside the fire hydrant box can serve as a warning to the staff, helping them to understand the sealing status of the fire hydrant in a timely manner, thereby achieving the purpose of detecting the leakage status of the warning sign.

[0008] Specifically, a door is provided on one side of the outer wall of the fire hydrant box, and a water supply pipe is provided on one side of the outer wall of the fire hydrant box, with a hydrant head connected to the flange at the end of the water supply pipe.

[0009] By adopting the above technical solution, the box door can shield and protect the inside of the fire hydrant box, the water supply pipe can be connected to the external fire water pipe, and the hydrant head can be connected to the fire hose. The hydrant head can control the flow of water, and the hydrant head is located inside the fire hydrant box.

[0010] Specifically, the inner wall of the water-collecting hood is designed in a conical shape, and the outer wall of the water-collecting hood is provided with connectors arranged in a rectangular array. The water-collecting hood is connected to the outer wall of the fire hydrant box by screws through the connectors.

[0011] By adopting the above technical solution, the inner wall of the water collection hood is designed in a conical shape, which uses gravity to guide the leaking water to converge towards the center, ensuring the efficiency of water collection and allowing the leaked water to flow into the water storage pipe. The connectors ensure the connection stability between the water collection hood and the fire hydrant box, and ensure the stability of the position of the water collection hood at the lower end of the fire hydrant box.

[0012] Specifically, the first plug has a circular array of permeable holes inside, and a water-absorbing and expanding rubber is provided at the lower end of the first plug, with the lower end surface of the water-absorbing and expanding rubber in contact with the upper end surface of the piston plate.

[0013] By adopting the above technical solution, the first plug, together with the piston plate, can restrict the position of the water-absorbing and expanding rubber. The water inside the water storage pipe can flow to the upper part of the piston plate through the water permeable hole. After the water-absorbing and expanding rubber absorbs water and expands, it will squeeze the piston plate, giving the piston plate a downward thrust, and causing the support plate to overcome the elasticity of the support spring and move. The water-absorbing and expanding rubber is designed with PU / rubber type material and can expand up to 250% after absorbing water.

[0014] Specifically, a support spring is provided between the support plate and the second plug, and the support plate is elastically connected to the second plug through the support spring.

[0015] By adopting the above technical solution, the supporting force of the support spring on the support plate can maintain its position, ensuring that the positions of the support plate, extension rod and warning sign are relatively stable, and ensuring that the warning sign is stored in the lower end of the water collection cover when not in use.

[0016] Specifically, a bearing is interference-fitted to the upper outer wall of the support plate, and the lower end of the support column is interference-fitted to the inner ring of the bearing. The support column is rotatably connected to the support plate through the bearing.

[0017] By adopting the above technical solution, the bearing ensures the smooth rotation of the support plate when it moves vertically with the piston plate. The support plate can rotate relative to the support column. With the design of the slide groove, the up and down movement of the support plate can be converted into the helical movement of the guide rod, providing a power transmission path for the stable extension of the warning sign.

[0018] Specifically, a groove is provided at the lower end of the outer wall of the water storage pipe. The groove is designed in a spiral shape, and the guide rod is located inside the groove.

[0019] By adopting the above technical solution, the spiral groove restricts the movement trajectory of the guide rod, causing the guide rod to rotate simultaneously as it moves up and down with the support plate, thereby driving the extension rod and warning sign to rotate and extend.

[0020] The beneficial effects of this utility model are:

[0021] The fire hydrant leakage detection device described in this utility model has a water-collecting cover that can detect water leaking from the hydrant head inside the fire hydrant box, prevent the leaked water from spreading, and enable centralized monitoring of leakage.

[0022] The fire hydrant leakage detection device described in this utility model has a warning sign extending from the outside of the fire hydrant box to warn staff and help them understand the sealing status of the fire hydrant in a timely manner. This achieves the purpose of detecting leakage by checking the warning sign. The mechanical detection and warning method reduces the equipment's operating and maintenance costs. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a schematic diagram of the main structure of the fire hydrant box of this utility model;

[0025] Figure 2 This is a structural disassembly diagram of the fire hydrant box of this utility model;

[0026] Figure 3 This is a cross-sectional schematic diagram of the water storage pipe structure of this utility model;

[0027] Figure 4 This is an exploded view of the water storage pipe structure of this utility model;

[0028] Figure 5 This is an enlarged schematic diagram of the support plate structure of this utility model.

[0029] In the diagram: 1. Fire hydrant box; 11. Box door; 12. Water supply pipe; 13. Hydrant head; 2. Water collection cover; 21. Connector; 22. Water storage pipe; 23. Slide groove; 24. First plug; 25. Water permeable hole; 26. Water-absorbing and expanding rubber; 3. Second plug; 31. Support plate; 32. Support spring; 33. Support column; 34. Piston plate; 35. Guide rod; 36. Extension rod; 37. Warning sign. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0031] To save manpower and improve efficiency, as one embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the fire hydrant leakage detection device of this utility model includes a fire hydrant box 1, a water-collecting cover 2, and a second plug 3. The water-collecting cover 2 is provided on the lower outer wall of the fire hydrant box 1. A water storage pipe 22 is welded to the lower outer wall of the water-collecting cover 2. A first plug 24 is threaded to the upper end of the water storage pipe 22. A second plug 3 is threaded to the lower end of the water storage pipe 22. A support plate 31 is provided on the upper end of the second plug 3. A support column 33 is provided on the upper end of the support plate 31. A piston plate 34 is welded to the upper end of the support column 33. A guide rod 35 is welded to one side of the outer wall of the support plate 31. An extension rod 36 is pinned to the end of the guide rod 35. A warning sign 37 is screwed to the end of the extension rod 36.

[0032] In use, the water-collecting cover 2 can collect water leaking from the hydrant head 13 inside the fire hydrant box 1, preventing the leaked water from spreading and enabling centralized monitoring of leaks. The leaked water, after being collected by the water-collecting cover 2, flows into the water storage pipe 22 and through the water permeable hole 25 to the upper end of the piston plate 34. The water-absorbing and expanding rubber 26 absorbs the leaked water and expands. The expanded water-absorbing and expanding rubber 26 squeezes the piston plate 34, causing the piston plate 34, guide rod 35, and support plate 31 to move vertically downward. When the support plate 31 carries the guide rod 35 and moves inside the slide groove 23, it will rotate according to the shape of the slide groove 23, causing the extension rod 36 and warning sign 37 to detach from the lower end of the water-collecting cover 2 and be in a relatively vertical state. The warning sign 37 extending outside the fire hydrant box 1 can serve as a warning to the staff, helping them to understand the sealing status of the fire hydrant in a timely manner, thereby achieving the purpose of detecting the leakage status of the warning sign 37.

[0033] For water delivery, exemplarily, such as Figure 2 As shown, a door 11 is provided on one side of the outer wall of the fire hydrant box 1, and a water supply pipe 12 is provided on one side of the outer wall of the fire hydrant box 1. A hydrant head 13 is connected to the flange at the end of the water supply pipe 12.

[0034] In use, the door 11 can shield and protect the inside of the fire hydrant box 1, the water supply pipe 12 can be connected to the external fire water pipe, and the hydrant head 13 can be connected to the fire hose. The hydrant head 13 can control the flow of water and is located inside the fire hydrant box 1.

[0035] For example, to redirect traffic, such as Figure 2 As shown, the inner wall of the water-collecting cover 2 is designed in a conical shape, and the outer wall of the water-collecting cover 2 is provided with a rectangular array of connectors 21. The water-collecting cover 2 is connected to the outer wall of the fire hydrant box 1 by screws through the connectors 21.

[0036] When in use, the inner wall of the water collection cover 2 adopts a conical design, which uses gravity to guide the leaking water to converge towards the center, ensuring the efficiency of water collection and allowing the leaked water to flow into the water storage pipe 22. The connector 21 ensures the connection stability between the water collection cover 2 and the fire hydrant box 1, and ensures the stability of the position of the water collection cover 2 at the lower end of the fire hydrant box 1.

[0037] To drive movement, for example, such as Figure 3 As shown, the first plug 24 has a circular array of water-permeable holes 25 inside, and a water-absorbing and expanding rubber 26 is provided at the lower end of the first plug 24. The lower end face of the water-absorbing and expanding rubber 26 is in contact with the upper end face of the piston plate 34.

[0038] In use, the first plug 24, together with the piston plate 34, can restrict the position of the water-absorbing and expanding rubber 26. The water inside the water storage pipe 22 can flow to the upper end of the piston plate 34 through the water permeable hole 25. After the water-absorbing and expanding rubber 26 absorbs water and expands, it will squeeze the piston plate 34, giving the piston plate 34 a downward thrust, and causing the support plate 31 to overcome the elasticity of the support spring 32 and move. The water-absorbing and expanding rubber 26 is made of PU / rubber material and can expand up to 250% after absorbing water.

[0039] To maintain the usage location, for example, such as Figure 4 As shown, a support spring 32 is provided between the support plate 31 and the second plug 3, and the support plate 31 is elastically connected to the second plug 3 through the support spring 32.

[0040] During use, the supporting force of the support spring 32 on the support plate 31 can maintain its position, ensuring that the positions of the support plate 31, the extension rod 36 and the warning sign 37 are relatively stable, and ensuring that the warning sign 37 is stored in the lower end of the water collection cover 2 when no warning is being given.

[0041] To maintain smooth rotation, for example, such as Figure 5 As shown, a bearing is interference-fitted to the upper outer wall of the support plate 31, and the lower end of the support column 33 is interference-fitted to the inner ring of the bearing. The support column 33 is rotatably connected to the support plate 31 through the bearing.

[0042] During use, the bearing ensures the smooth rotation of the support plate 31 as it moves vertically with the piston plate 34. The support plate 31 can rotate relative to the support column 33. With the design of the slide groove 23, the up and down movement of the support plate 31 can be converted into the helical movement of the guide rod 35, providing a power transmission path for the stable extension of the warning sign 37.

[0043] For guidance, exemplified, such as Figure 3 As shown, a groove 23 is provided at the lower end of the outer wall of the water storage pipe 22. The groove 23 adopts a spiral shape design, and the guide rod 35 is located inside the groove 23.

[0044] In use, the spiral groove 23 restricts the movement trajectory of the guide rod 35, causing the guide rod 35 to rotate as it moves up and down with the support plate 31, thereby driving the extension rod 36 and the warning sign 37 to rotate and extend.

[0045] When this utility model is in use and there is no water leakage, the support spring 32 is in a naturally extended state, which pushes the support plate 31 upward, so that the piston plate 34 is tightly attached to the water-absorbing and expanding rubber 26. The guide rod 35 is located at the uppermost starting end of the spiral groove 23. The extension rod 36 and the warning sign 37 are stored at the lower end of the water collection cover 2, parallel to the outer wall of the fire hydrant box 1.

[0046] When the hydrant head 13 or water pipe 12 in the fire hydrant box 1 leaks, the water collection cover 2 guides the leaking water to the water storage pipe 22 through the conical inner wall. The leaking water enters the water storage pipe 22 through the water permeable hole 25 of the first plug 24 and accumulates above the piston plate 34. The water-absorbing and expanding rubber 26 absorbs water and begins to expand, squeezing the piston plate 34 downward.

[0047] Under the squeezing action of the water-absorbing and expanding rubber 26, the piston plate 34 overcomes the elastic force of the support spring 32, driving the support column 33 and support plate 31 to move vertically downward. The guide rod 35 on the outer wall of the support plate 31 slides along the spiral groove 23, converting the vertical motion into rotational motion. The rotation of the guide rod 35 drives the extension rod 36 and the warning sign 37 to rotate synchronously and extend out of the water collection cover 2, eventually perpendicular to the outer wall of the fire hydrant box 1, forming a clear warning sign.

[0048] Workers can remove and replace the water-absorbing and expanding rubber 26 by disassembling the first plug 24 and the second plug 3.

[0049] It should be noted that this utility model is a fire hydrant leakage detection device. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fire hydrant leakage detection device, characterized in that, The fire hydrant box (1), water collection cover (2), and second plug (3) are included. The water collection cover (2) is provided on the lower outer wall of the fire hydrant box (1). A water storage pipe (22) is welded to the lower outer wall of the water collection cover (2). A first plug (24) is threaded to the upper end of the water storage pipe (22). A second plug (3) is threaded to the lower end of the water storage pipe (22). A support plate (31) is provided on the upper end of the second plug (3). A support column (33) is provided on the upper end of the support plate (31). A piston plate (34) is welded to the upper end of the support column (33). A guide rod (35) is welded to one side of the outer wall of the support plate (31). An extension rod (36) is pinned to the end of the guide rod (35). A warning sign (37) is screwed to the end of the extension rod (36).

2. The fire hydrant leakage detection device according to claim 1, characterized in that, The fire hydrant box (1) has a door (11) on one side of its outer wall, and a water supply pipe (12) is provided on one side of its outer wall. The end flange of the water supply pipe (12) is connected to a hydrant head (13).

3. The fire hydrant leakage detection device according to claim 1, characterized in that, The inner wall of the water-collecting cover (2) is designed in a conical shape, and the outer wall of the water-collecting cover (2) is provided with a rectangular array of connectors (21), and the water-collecting cover (2) is connected to the outer wall of the fire hydrant box (1) by screws through the connectors (21).

4. The fire hydrant leakage detection device according to claim 1, characterized in that, The first plug (24) has a circular array of permeable holes (25) inside. The lower end of the first plug (24) is provided with a water-absorbing and expanding rubber (26), and the lower end face of the water-absorbing and expanding rubber (26) is in contact with the upper end face of the piston plate (34).

5. The fire hydrant leakage detection device according to claim 1, characterized in that, A support spring (32) is provided between the support plate (31) and the second plug (3), and the support plate (31) is elastically connected to the second plug (3) through the support spring (32).

6. The fire hydrant leakage detection device according to claim 1, characterized in that, The upper outer wall of the support plate (31) is fitted with a bearing, and the lower end of the support column (33) is fitted with the inner ring of the bearing. The support column (33) is rotatably connected to the support plate (31) through the bearing.

7. The fire hydrant leakage detection device according to claim 1, characterized in that, The lower end of the outer wall of the water storage pipe (22) is provided with a groove (23), the groove (23) is designed in a spiral shape, and the guide rod (35) is located inside the groove (23).

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