Fire-fighting equipment internal water pressure detection device

Abstract

The utility model relates to fire-fighting equipment technical field, concretely is a kind of fire-fighting equipment internal water pressure detection device, including water pipe, be provided with indicating assembly on water pipe, indicating assembly includes branch pipe, sealing cover, annular groove and indicating rod, branch pipe is fixedly connected on water pipe, sealing cover is fixedly connected in the inside of branch pipe, annular groove is opened on the inner wall of sealing cover, indicating rod is slidably connected in the inside of annular groove, the inside of water pipe is also provided with driving assembly, driving assembly includes through-hole, piston, ball and helical groove, through-hole is opened on water pipe, piston is slidably connected on the inner wall of branch pipe, helical groove is opened on the inner wall of sealing cover, ball is slidably connected in the inside of helical groove;The utility model can detect the water pressure in the water pipe connected to fire hydrant when not using, to determine whether fire hydrant can work normally in the case of not using fire hydrant, to confirm whether fire hydrant is damaged and whether it needs repair or replacement when not using fire hydrant.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting equipment technology, specifically a water pressure detection device for internal fire-fighting equipment. Background Technology

[0002] Firefighting equipment is a necessary facility in all types of buildings. Its main function is to spray water to extinguish fires when they occur. The most common type of firefighting equipment is the fire hydrant, which is provided in all types of buildings. The fire hydrant is connected to a water pipe, and when in use, the valve can be turned on to spray high-pressure water to extinguish the fire.

[0003] However, currently, fire hydrants in various buildings are not equipped with devices to detect water pressure. Fire hydrants may not be used for many years and may be damaged in the long term, such as water pipe damage, causing the fire hydrant to fail to discharge water normally or the water pressure to drop and fail to meet the fire extinguishing needs. Therefore, there is a need for a device that can detect and display the water pressure inside the fire hydrant, so that even when the fire hydrant is not in use, it can be known whether the water pressure inside the fire hydrant is normal, thereby confirming whether the fire hydrant can be used normally. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model proposes an internal water pressure detection device for fire-fighting equipment. This device can detect the water pressure in the water pipe connected to the fire hydrant even when it is not in use, thereby determining whether the fire hydrant is functioning properly and whether it is damaged or needs repair or replacement when it is not in use.

[0005] The technical solution to achieve the purpose of this utility model is as follows: a water pressure detection device for fire-fighting equipment, including a water pipe, a valve installed on the water pipe, and an indicating component installed on the water pipe. The indicating component includes a branch pipe, a sealing cover, an annular groove, and an indicating rod. The branch pipe is fixedly connected to the water pipe, the sealing cover is fixedly connected to the inside of the branch pipe, the annular groove is formed on the inner wall of the sealing cover, and the indicating rod is slidably connected to the inside of the annular groove. A driving component is also installed inside the water pipe. The driving component includes a through hole, a piston, a ball, and a spiral groove. The through hole is formed on the water pipe, the piston is slidably connected to the inner wall of the branch pipe, the spiral groove is formed on the inner wall of the sealing cover, and the ball is slidably connected to the inside of the spiral groove. The ball cooperates with the indicating rod.

[0006] Preferably, the indicating component further includes a dial, which is fixedly connected to the branch pipe and has scale lines.

[0007] Preferably, both the sealing cover and the dial are made of transparent material, and the annular groove corresponds to the scale line.

[0008] Preferably, the drive assembly further includes a turntable and a vertical rod, the turntable being rotatably connected to the piston and the vertical rod being fixedly connected to the turntable.

[0009] Preferably, the vertical rod has an air hole inside, and one end of the indicator rod is slidably connected to the inside of the air hole.

[0010] Preferably, one end of the vertical rod is fixedly connected to the ball bearing, and the spiral groove is spiral-shaped with one loop.

[0011] Preferably, the valve and the branch pipe are respectively located at both ends of the water pipe, and the through hole connects to the interior of the branch pipe.

[0012] Compared with the prior art, the significant advantages of this utility model are:

[0013] Firstly, in this utility model, a water pipe is connected between the fire hose and the fire hydrant. One end of the water pipe is connected to the fire hose, and the other end is connected to the fire hydrant. Due to the presence of a valve, water is blocked in the water pipe. The valve needs to be opened for water to enter the fire hose for fire extinguishing. When the valve is closed, water from the fire hydrant enters the water pipe and then enters the branch pipe through the through hole. Under the action of water pressure, the piston is pushed upward. Because the piston and the sealing cover are sealed and there is gas between them, the piston is pushed to a certain height under the action of air pressure. Then, the air pressure above the piston equals the water pressure below, and the piston remains stationary. The scale line corresponding to the position of the indicator rod in the annular groove at this time is used to indicate the water pressure at this time.

[0014] Secondly, in this invention, when a fire hydrant malfunctions and causes changes in water pressure, the change in water pressure below the piston will alter the piston's height within the branch pipe. This change in piston height will cause changes in the height of the turntable and the vertical rod. Since the vertical rod is fixedly connected to a ball bearing, and the ball bearing moves within a spiral groove, the position of the ball bearing within the spiral groove changes as the vertical rod's height changes with the piston's height. This, in turn, causes the vertical rod and the turntable to rotate. When the vertical rod rotates, it will move the indicator rod within its annular groove, thus changing the scale marking on the indicator rod. The scale markings indicate pressure values. The change in the indicator rod's position and the corresponding scale marking indicate a change in water pressure within the fire hydrant. When the water pressure change is significant, it indicates that the fire hydrant may be damaged and requires repair or replacement. Attached Figure Description

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the internal structure of this utility model;

[0018] Figure 3 This utility model Figure 2 A cross-sectional view of the internal structure of the branch pipe shown;

[0019] Figure 4 This is a schematic diagram of the internal structure of the branch pipe in this utility model. Figure 1 ;

[0020] Figure 5 This is a schematic diagram of the internal structure of the branch pipe in this utility model. Figure 2 .

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Water pipe; 20. Valve; 30. Indicator assembly; 310. Branch pipe; 320. Dial; 330. Scale line; 340. Sealing cover; 350. Annular groove; 360. Indicator rod; 40. Drive assembly; 410. Through hole; 420. Piston; 430. Turntable; 440. Vertical rod; 450. Ball bearing; 460. Spiral groove; 470. Air hole. Detailed Implementation

[0023] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0024] This utility model provides an improved internal water pressure detection device for fire-fighting equipment. The technical solution of this utility model is as follows:

[0025] like Figures 1-5As shown, a water pressure detection device for fire-fighting equipment includes a water pipe 10, a valve 20 installed on the water pipe 10, and an indicating component 30 installed on the water pipe 10. The indicating component 30 includes a branch pipe 310, a sealing cover 340, an annular groove 350, and an indicating rod 360. The branch pipe 310 is fixedly connected to the water pipe 10, the sealing cover 340 is fixedly connected to the inside of the branch pipe 310, the annular groove 350 is formed on the inner wall of the sealing cover 340, and the indicating rod 360 is slidably connected to the inside of the annular groove 350. The water pipe 10 also contains a drive assembly 40, which includes a through hole 410, a piston 420, a ball bearing 450, and a spiral groove 460. The through hole 410 is formed on the water pipe 10, the piston 420 is slidably connected to the inner wall of the branch pipe 310, the spiral groove 460 is formed on the inner wall of the sealing cover 340, and the ball bearing 450 is slidably connected to the inside of the spiral groove 460. The ball bearing 450 cooperates with the indicator rod 360. When the water pipe 10 is connected to the fire hydrant, water in the fire hydrant will enter the branch pipe 360. Inside pipe 310, piston 420 moves upward. Because piston 420 and sealing cover 340 are sealed and there is gas between them, piston 420 will be pushed to a certain height under the action of air pressure. Then, the air pressure above piston 420 equals the water pressure below, so piston 420 remains stationary. At this time, the scale on scale line 330 corresponding to the position of indicator rod 360 in annular groove 350 is used to indicate the water pressure at this time. Since temperature changes will change the volume of gas, the gas volume between piston 420 and sealing cover 340 will change with seasonal changes. In order to reduce the change in gas volume, carbon dioxide or other gases can be artificially injected between sealing cover 340 and piston 420. Because the intermolecular forces of carbon dioxide gas are strong, the gas volume changes less when the temperature changes. Therefore, piston 420 will move slightly when the temperature changes. When piston 420 moves significantly, it indicates that the water pressure in the fire hydrant has changed significantly, indicating that the fire hydrant may be damaged.

[0026] Furthermore, the indicator component 30 also includes a dial 320, which is fixedly connected to the branch pipe 310. The dial 320 is provided with scale lines 330, and the scale on the scale lines 330 corresponds to different pressure values.

[0027] Furthermore, both the sealing cover 340 and the dial 320 are made of transparent material. The annular groove 350 corresponds to the scale line 330. When the indicator rod 360 moves, the scale value on the corresponding scale line 330 changes. The pressure value corresponding to different scale lines 330 can be known in advance through detection to ensure that when the piston 420 moves to different positions, the indicator rod 360 will also move to the appropriate position, so that the scale on the scale line 330 can accurately represent the water pressure in the fire hydrant at this time.

[0028] Furthermore, the drive assembly 40 also includes a turntable 430 and a vertical rod 440, with the turntable 430 rotatably connected to the piston 420 and the vertical rod 440 fixedly connected to the turntable 430.

[0029] Furthermore, the vertical rod 440 has an air hole 470 inside, and one end of the indicator rod 360 is slidably connected to the inside of the air hole 470. Since the vertical rod 440 moves with the ball 450, the height of the vertical rod 440 will change. Therefore, when the indicator rod 360 moves with the vertical rod 440, it will also slide relatively inside the air hole 470. However, since the overall gas volume between the sealing cover 340 and the piston 420 is relatively stable, the movement of the indicator rod 360 inside the air hole 470 will not affect the air pressure between the sealing cover 340 and the piston 420.

[0030] Furthermore, one end of the vertical rod 440 is fixedly connected to the ball bearing 450, and the spiral groove 460 is spiral-shaped with one loop. Changes in water pressure inside the fire hydrant will cause the piston 420 to move. The vertical movement of the piston 420 will drive the vertical rod 440 and the ball bearing 450 to move vertically. The ball bearing 450 moves within the spiral groove 460, so once the ball bearing 450 moves, it will move within the spiral groove 460, which manifests as rotation in the horizontal direction, thereby driving the vertical rod 440 and the turntable 430 to rotate.

[0031] Furthermore, valve 20 and branch pipe 310 are respectively installed at both ends of water pipe 10, and through hole 410 connects to the interior of branch pipe 310.

[0032] Working principle: A water pipe 10 is installed between the fire hose and the fire hydrant. One end of the water pipe 10 is connected to the fire hose, and the other end is connected to the fire hydrant. Due to the presence of a valve 20, water is blocked in the water pipe 10. The valve 20 needs to be opened for water to enter the fire hose for fire extinguishing. When the valve 20 is closed, water from the fire hydrant enters the water pipe 10 and then enters the branch pipe 310 through the through hole 410. Under the action of water pressure, the piston 420 is pushed upward. Since there is a seal between the piston 420 and the sealing cover 340, and there is gas between them, the piston 420 is pushed to a certain height under the action of air pressure. Then, the air pressure above the piston 420 is equal to the water pressure below, so the piston 420 remains stationary. The scale on the scale line 330 corresponding to the position of the indicator rod 360 in the annular groove 350 is used to indicate the water pressure at this time.

[0033] When a fire hydrant malfunctions and causes changes in water pressure, the pressure change below piston 420 will alter the height of piston 420 within branch pipe 310. This change in piston 420 height will cause changes in the height of the rotating disc 430 and vertical rod 440. Since the vertical rod 440 is fixedly connected to ball bearings 450, which move within spiral grooves 460, the position of ball bearings 450 within spiral grooves 460 changes as the height of the vertical rod 440 changes with the height of piston 420. This, in turn, causes the vertical rod 440 and rotating disc 430 to rotate. The rotation of the vertical rod 440 will then cause the indicator rod 360 to move within annular groove 350, thus changing the scale on the corresponding graduation line 330. The graduation line 330 is marked with pressure values. The change in the position of the indicator rod 360 and the corresponding change in its graduation indicate a change in water pressure within the fire hydrant. A significant change in water pressure indicates that the fire hydrant may be damaged and requires repair or replacement.

[0034] It should be noted that the technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art. In this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A water pressure detection device for fire-fighting equipment, comprising a water pipe (10), wherein a valve (20) is provided on the water pipe (10), characterized in that: An indicator assembly (30) is provided on the water pipe (10). The indicator assembly (30) includes a branch pipe (310), a sealing cover (340), an annular groove (350), and an indicator rod (360). The branch pipe (310) is fixedly connected to the water pipe (10). The sealing cover (340) is fixedly connected to the inside of the branch pipe (310). The annular groove (350) is formed on the inner wall of the sealing cover (340). The indicator rod (360) is slidably connected to the inside of the annular groove (350). The interior is also provided with a drive assembly (40), which includes a through hole (410), a piston (420), a ball (450) and a spiral groove (460). The through hole (410) is opened on the water pipe (10), the piston (420) is slidably connected to the inner wall of the branch pipe (310), the spiral groove (460) is opened on the inner wall of the sealing cover (340), the ball (450) is slidably connected to the inside of the spiral groove (460), and the ball (450) cooperates with the indicator rod (360).

2. The internal water pressure detection device for fire-fighting equipment according to claim 1, characterized in that: The indicator component (30) also includes a dial (320), which is fixedly connected to the branch pipe (310), and the dial (320) is provided with scale lines (330).

3. The internal water pressure detection device for fire-fighting equipment according to claim 2, characterized in that: Both the sealing cover (340) and the dial (320) are made of transparent material, and the annular groove (350) corresponds to the scale line (330).

4. The internal water pressure detection device for fire-fighting equipment according to claim 1, characterized in that: The drive assembly (40) also includes a turntable (430) and a vertical rod (440), the turntable (430) being rotatably connected to the piston (420) and the vertical rod (440) being fixedly connected to the turntable (430).

5. The internal water pressure detection device for fire-fighting equipment according to claim 4, characterized in that: The vertical rod (440) has an air hole (470) inside, and one end of the indicator rod (360) is slidably connected to the inside of the air hole (470).

6. The internal water pressure detection device for fire-fighting equipment according to claim 5, characterized in that: One end of the vertical rod (440) is fixedly connected to the ball (450), and the spiral groove (460) is spiral-shaped with one loop.

7. The internal water pressure detection device for fire-fighting equipment according to claim 1, characterized in that: The valve (20) and the branch pipe (310) are respectively located at both ends of the water pipe (10), and the through hole (410) connects to the interior of the branch pipe (310).

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