Fire hydrant pressure measuring device

Abstract

The utility model discloses a fire hydrant pressure measuring device, which belongs to the technical field of fire hydrant pressure measurement and comprises a pressure measuring pipe, a water tank is mounted at one end of the pressure measuring pipe, a filter pipe is mounted at the other end of the pressure measuring pipe, a filter cover is rotatably mounted in the filter pipe, and a funnel plate is fixedly connected in the filter cover. Through holes are formed in the filter cover and the funnel plate and are perpendicular to the section of the pressure measuring pipe, a rotary disc is rotationally installed above the filter pipe, the lower end of the rotary disc is fixedly connected with the side surface of the filter cover, a pressure measuring meter is arranged on the outer side of the pressure measuring pipe, and the lower end of the pressure measuring meter penetrates through the pressure measuring pipe and is fixedly connected with a pressure sensor. Impurities and rust in the fire hydrant can be filtered, the situation that the pressure measuring device is impacted by the rust impurities to be damaged when the pressure of the fire hydrant is measured is avoided, and therefore the service life of the pressure measuring device is prolonged.

Description

Technical Field

[0001] The utility model relates to a fire hydrant pressure measuring device, belonging to the technical field of fire hydrant pressure measuring. Background Art

[0002] The fire hydrant system water testing device is also known as the fire hydrant pressure measuring joint. It is used by the fire detection department to measure the pressure of the fire hydrant system in order to accurately judge the performance of the fire hydrant system. It is a special device for calibrating the water column of the water gun. Currently, existing fire hydrants need to be tested for water pressure regularly to ensure that the fire hydrants have sufficient water pressure to extinguish fires when fire hazards occur.

[0003] Currently, the existing fire hydrant pressure measuring devices are generally directly connected to the fire hydrant and then the fire hydrant is opened for pressure measurement. However, when the fire hydrant is not used for a long time, there will be certain impurities and rust inside. When the fire hydrant is opened for pressure measurement, the impurities and rust will rush into the pressure measuring device, and some impurities and rust will cause certain damage to the pressure gauge inside the pressure measuring device, thereby reducing the service life of the pressure measuring device. Utility Model Content

[0004] The purpose of the utility model is to provide a fire hydrant pressure measuring device in order to solve the above-mentioned problem, which can filter impurities and rust inside the fire hydrant, avoiding damage to the pressure measuring device by the impact of rust impurities when measuring the pressure of the fire hydrant, thereby extending the service life of the pressure measuring device.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a fire hydrant pressure measuring device, including a pressure measuring tube, a water tank is installed at one end of the pressure measuring tube, and a filter tube is installed at the other end of the pressure measuring tube, a filter cover is rotatably installed inside the filter tube, and a funnel plate is fixedly connected to the inside of the filter cover, through holes are opened inside the filter cover and the funnel plate, and the through holes are perpendicular to the cross-section of the pressure measuring tube, a turntable is rotatably installed above the filter tube, and the lower end of the turntable is fixedly connected to the side surface of the filter cover, a pressure gauge is provided on the outside of the pressure measuring tube, and the lower end of the pressure gauge passes through the pressure measuring tube and is fixedly connected to a pressure sensor.

[0006] Preferably, the side surface of the filter cover is fixedly connected to the edge seal, and the cross-section of the edge seal is a triangular structure.

[0007] Preferably, a second limit rod is slidably connected inside the turntable, and the upper end of the second limit rod is fixedly connected to a second spring, the lower end of the second spring is fixedly connected to the upper surface of the turntable, and two groups of limit holes are opened on the side surface of the filter tube, and the angle formed by the two groups of limit holes is 90 degrees.

[0008] Preferably, a buffer block is provided inside the water tank, and one side surface of the buffer block is a concave arc structure, one side surface of the buffer block is fixedly connected to a first spring, and one end of the first spring is fixedly connected to the inner wall of the water tank.

[0009] Preferably, a first limiting rod is slidably connected inside the buffer block, and one end of the first limiting rod is fixedly connected to the inner wall of the water tank.

[0010] The beneficial effect of the utility model is that the utility model can filter impurities and rust inside the fire hydrant through the filter cover arranged inside the filter tube at the other end of the pressure measuring tube and the funnel plate and turntable fixedly connected inside the filter cover, thereby avoiding damage to the pressure measuring device caused by the impact of rust impurities when measuring pressure at the fire hydrant, thereby extending the service life of the pressure measuring device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the internal structure of the pressure measuring tube and the filter tube in the utility model;

[0013] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the middle filter cover;

[0014] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0015] In the figure: 1 pressure measuring tube, 2 water tank, 3 buffer block, 4 spring, 5 first limit rod, 6 pressure gauge, 7 filter tube, 8 pressure sensor, 9 through hole, 10 filter cover, 11 funnel plate, 12 edge sealing, 13 second limit rod, 14 spring, 15 turntable, 16 limit hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4As shown, a fire hydrant pressure measuring device includes a pressure measuring tube 1, a water tank 2 is installed at one end of the pressure measuring tube 1, and a filter tube 7 is installed at the other end of the pressure measuring tube 1, a filter cover 10 is rotatably installed inside the filter tube 7, and a funnel plate 11 is fixedly connected inside the filter cover 10, through holes 9 are opened inside the filter cover 10 and the funnel plate 11, and the through holes 9 are perpendicular to the cross-section of the pressure measuring tube 1, a turntable 15 is rotatably installed above the filter tube 7, and the lower end of the turntable 15 is fixedly connected to the side surface of the filter cover 10, a pressure gauge 6 is provided on the outside of the pressure measuring tube 1, and the lower end of the pressure gauge 6 passes through the pressure measuring tube 1 and is fixedly connected to a pressure sensor 8.

[0018] As a technical optimization solution of the utility model, the side surface of the filter cover 10 is fixedly connected to the edge seal 12, and the cross-section of the edge seal 12 is a triangular structure, which can reduce the resistance to water, thereby making the pressure measuring device more accurate.

[0019] As a technical optimization solution of the utility model, the turntable 15 is internally slidably connected with a second limit rod 13, and the upper end of the second limit rod 13 is fixedly connected with a second spring 14, the lower end of the second spring 14 is fixedly connected to the upper surface of the turntable 15, and the side surface of the filter tube 7 is provided with two groups of limit holes 16, and the angle formed by the two groups of limit holes 16 is 90 degrees, which can limit the filter cover 10 and the turntable 15, so that the surface water flow will flush the filter cover 10 back to its original position to cause resistance to the water flow.

[0020] As a technical optimization solution of the utility model, a buffer block 3 is provided inside the water tank 2, and one side surface of the buffer block 3 is a concave arc structure. A first spring 4 is fixedly connected to one side surface of the buffer block 3, and one end of the first spring 4 is fixedly connected to the inner wall of the water tank 2, which can reduce the impact force of water and avoid damaging the water tank 2.

[0021] As a technical optimization solution of the utility model, the buffer block 3 is internally slidably connected with a first limiting rod 5, and one end of the first limiting rod 5 is fixedly connected to the inner wall of the water tank 2, which can limit the buffer block 3 and prevent the buffer block 3 from moving out of position.

[0022] When the utility model is in use, first connect the filter tube 7 at one end of the pressure measuring tube 1 to the water outlet of the fire hydrant, and then rotate the turntable 15. At this time, the turntable 15 will drive the filter cover 10 to rotate, so as to block the inside of the filter tube 7. At this time, open the fire hydrant, and the fire hydrant will flush out water, and at the same time, flush out impurities and rust. The impurities and rust can be filtered through the filter cover 10 and the funnel plate 11. Then close the fire hydrant, and then rotate the turntable 15 in the opposite direction, so that the filter cover 10 opens and is perpendicular to the cross-section of the filter tube 7. At this time, open the fire hydrant, so that the water flow will impact the pressure sensor 8 inside the pressure measuring tube 1, so that the pressure sensor 8 transmits the water pressure to the pressure gauge 6 for display, and the fire hydrant pressure measurement work is completed.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire hydrant pressure measuring device, comprising a pressure measuring tube (1), characterized in that: A water tank (2) is installed at one end of the pressure measuring tube (1), and a filter tube (7) is installed at the other end of the pressure measuring tube (1). A filter cover (10) is rotatably installed inside the filter tube (7), and a funnel plate (11) is fixedly connected inside the filter cover (10). Through holes (9) are provided inside the filter cover (10) and the funnel plate (11), and the through holes (9) are perpendicular to the cross section of the pressure measuring tube (1). A turntable (15) is rotatably installed above the filter tube (7), and the lower end of the turntable (15) is fixedly connected to the side surface of the filter cover (10). A pressure gauge (6) is provided on the outside of the pressure measuring tube (1), and the lower end of the pressure gauge (6) passes through the pressure measuring tube (1) and is fixedly connected to a pressure sensor (8).

2. A fire hydrant pressure measuring device according to claim 1, characterized in that: The side surface of the filter cover (10) is fixedly connected to the edge seal (12), and the cross section of the edge seal (12) is a triangular structure.

3. A fire hydrant pressure measuring device according to claim 1, characterized in that: The interior of the rotating disk (15) is slidably connected to a second limiting rod (13), and the upper end of the second limiting rod (13) is fixedly connected to a second spring (14), and the lower end of the second spring (14) is fixedly connected to the upper surface of the rotating disk (15). The side surface of the filter tube (7) is provided with two groups of limiting holes (16), and the angle formed by the two groups of limiting holes (16) is 90 degrees.

4. A fire hydrant pressure measuring device according to claim 1, characterized in that: A buffer block (3) is provided inside the water tank (2), and one side surface of the buffer block (3) is a concave arc structure. A first spring (4) is fixedly connected to one side surface of the buffer block (3), and one end of the first spring (4) is fixedly connected to the inner wall of the water tank (2).

5. A fire hydrant pressure measuring device according to claim 4, characterized in that: A first limiting rod (5) is slidably connected inside the buffer block (3), and one end of the first limiting rod (5) is fixedly connected to the inner wall of the water tank (2).

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