Intelligent digital display pressure gauge of fire hydrant

Abstract

The utility model discloses an intelligent digital display pressure gauge for a fire hydrant, and belongs to the technical field of fire fighting equipment. Comprising a shell, the shell comprises a connecting end used for being connected with a fire hydrant, a pressure sensor is arranged in the connecting end, a pressure release valve is arranged in the shell, a liquid inlet of the pressure release valve is located in the connecting end, a digital display liquid crystal screen is arranged on the shell, and the pressure sensor is electrically connected with the digital display liquid crystal screen; the fire hydrant pressure measuring device is compact in structure, ultra-thin and ultra-light, and the thickness of the pressure measuring core body is consistent with that of a fire hydrant tooth opening; the pressure sensor is used for measuring the liquid pressure, and the digital display liquid crystal screen is used for displaying the pressure reading, so that a user can conveniently and quickly read; after the fire hydrant is connected with the pressure measuring instrument, the pressure sensor and the liquid inlet of the pressure release valve are located in the valve cavity of the fire hydrant, and the measured static pressure and dynamic pressure better meet the standard requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of fire-fighting equipment, in particular to an intelligent digital display pressure measuring instrument for fire hydrants. Background Art

[0002] The fire hydrant system water testing device is a special device used to detect the static water pressure and water outlet pressure of indoor fire hydrants, and to calibrate the water column of the water gun; all the fire hydrant pressure gauges on the market are very messy, with different sizes, different pressure measurement positions, and different pressure relief holes. Also, because the pressure gauges currently on the market are too large, they are not convenient to carry as daily law enforcement equipment during fire supervision and inspection. In addition, all the pressure gauges currently on the market use pointer-type pressure gauges, which are not convenient for reading during the pressure measurement process. Utility Model Content

[0003] In view of this, the purpose of this utility model is to overcome the deficiencies in the prior art and provide a fire hydrant intelligent digital pressure gauge. This application provides the following technical solutions:

[0004] It includes a shell, which includes a connecting end for connecting to a fire hydrant, a pressure sensor is provided in the connecting end, a pressure relief valve is provided in the shell, the liquid inlet of the pressure relief valve is located in the connecting end, a digital display LCD screen is provided on the shell, and the pressure sensor is electrically connected to the digital display LCD screen.

[0005] The shell includes an installation cavity, the connecting end is located at one end of the installation cavity, the digital display LCD screen is located at the other end of the installation cavity, the pressure relief valve is located in the installation cavity, the liquid inlet is located in the connecting end after passing through the installation cavity, and the liquid outlet of the pressure relief valve passes through the installation cavity away from the connecting end; the wires used to electrically connect the pressure sensor and the digital display LCD screen are arranged in the installation cavity.

[0006] A pipe thread interface is provided at the connection end, and the connection end is connected to the fire hydrant through the pipe thread interface.

[0007] A sealing ring is provided on the connecting end, and the sealing ring is used to seal the connection between the pipe thread interface and the fire hydrant.

[0008] The pressure relief valve has a manual switch, and the manual switch passes through the side wall of the installation cavity and is located outside the shell.

[0009] A mounting tube is sealed and clamped in the shell, the tube mouth of the mounting tube extends outward from the connecting end, the tube bottom of the mounting tube is passed into the mounting cavity, the tube bottom of the mounting tube has a through hole, the pressure sensor is installed in the mounting tube, the outer wall of the pressure sensor is in sealing contact with the inner wall of the mounting tube, and the wire used for electrically connecting the pressure sensor and the digital display LCD screen passes through the through hole.

[0010] The pressure relief port diameter of the pressure relief valve is 16 mm.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0012] It has a compact structure, is ultra-thin and ultra-light, and the thickness of the pressure measuring core is consistent with the thickness of the fire hydrant teeth. It uses a pressure sensor to measure liquid pressure and displays the pressure reading on a digital LCD screen, making it convenient for users to read quickly. After the fire hydrant is connected to the pressure gauge, the liquid inlet of the pressure sensor and the pressure relief valve are directly located in the fire hydrant valve cavity, and the measured static and dynamic pressures are more in line with the requirements of the specifications. The pressure relief port diameter is 16mm, and the measured dynamic pressure is more in line with the requirements of the specifications.

[0013] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the explosion of the fire hydrant intelligent digital pressure gauge.

[0016] Figure 2 This is a schematic diagram of the front of the fire hydrant intelligent digital pressure gauge.

[0017] Figure 3 This is a schematic diagram of the rear part of the fire hydrant intelligent digital pressure gauge.

[0018] Figure 4 This is the internal schematic diagram of the fire hydrant intelligent digital pressure gauge.

[0019] Figure numerals: 1. Shell; 11. Installation cavity; 12. Pipe thread interface; 13. Sealing ring; 14. Installation cylinder; 2. Pressure sensor; 3. Pressure relief valve; 31. Liquid inlet; 32. Liquid outlet; 33. Manual switch; 4. Digital LCD screen. DETAILED DESCRIPTION

[0020] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0021] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0022] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0023] Please refer to Figure 1-4 As shown, the fire hydrant intelligent digital display pressure gauge provided by the utility model comprises a shell 1, the shell 1 comprises a connecting end for connecting to a fire hydrant, a pressure sensor 2 is provided in the connecting end, a pressure relief valve 3 is provided in the shell 1, a liquid inlet 31 of the pressure relief valve 3 is located in the connecting end, a digital display LCD screen 4 is provided on the shell 1, and the pressure sensor 2 is electrically connected to the digital display LCD screen 4.

[0024] The pressure sensor 2 is a high-precision diffused silicon pressure sensor; a battery for supplying power to the pressure sensor 2 and the digital display LCD 4 is also provided in the housing 1 .

[0025] The shell 1 includes an installation cavity 11, the connection end is located at one end of the installation cavity 11, the digital display LCD screen 4 is located at the other end of the installation cavity 11, the pressure relief valve 3 is located in the installation cavity 11, the liquid inlet 31 passes through the installation cavity 11 and is located in the connection end, and the liquid outlet 32 ​​of the pressure relief valve 3 passes through the installation cavity 11 away from the connection end; the wires used to electrically connect the pressure sensor 2 and the digital display LCD screen 4 are arranged in the installation cavity 11.

[0026] A pipe thread interface 12 is provided at the connection end, and the connection end is connected to the fire hydrant through the pipe thread interface 12.

[0027] A sealing ring 13 is provided on the connection end, and the sealing ring 13 is used to seal the connection between the pipe thread interface 12 and the fire hydrant.

[0028] The pressure relief valve 3 has a manual switch 33 , which passes through the side wall of the installation cavity 11 and is located outside the housing 1 .

[0029] A mounting tube 14 is sealed and clamped in the shell 1. The tube mouth of the mounting tube 14 extends outward from the connecting end. The tube bottom of the mounting tube 14 is passed into the mounting cavity 11. The tube bottom of the mounting tube 14 has a through hole. The pressure sensor 2 is installed in the mounting tube 14. A sealing ring is fixed on the outer wall of the pressure sensor 2. The outer wall of the pressure sensor 2 is in sealing contact with the inner wall of the mounting tube 14. The wire used for the electrical connection between the pressure sensor 2 and the digital display LCD screen 4 passes through the through hole.

[0030] The pressure relief port diameter of the pressure relief valve 3 is 16 mm.

[0031] During specific implementation, the pipe thread interface 12 is used to seal the liquid outlet valve of the fire hydrant, and the liquid outlet valve of the fire hydrant is opened. At this time, the pressure sensor 2 is subjected to liquid pressure and transmits the pressure information to the digital LCD screen 4. The digital LCD screen 4 displays the static pressure data for the user to observe. After the user records the information, the pressure relief valve 3 is opened through the manual switch 33. The liquid in the fire hydrant enters the pressure relief valve 3 through the liquid inlet 31 and is output from the liquid outlet 32. At this time, the liquid pressure applied to the pressure sensor 2 changes, and the pressure information is transmitted to the digital LCD screen 4. The digital LCD screen 4 displays the dynamic pressure data for the user to observe. After the user has finished recording, the liquid outlet valve of the fire hydrant is closed and the pressure gauge is removed through the pipe thread interface 12.

[0032] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. Fire hydrant intelligent digital display pressure gauge, characterized by: The invention comprises a housing (1), wherein the housing (1) comprises a connection end for connecting to a fire hydrant, wherein a pressure sensor (2) is arranged in the connection end, wherein a pressure relief valve (3) is arranged in the housing (1), wherein a liquid inlet (31) of the pressure relief valve (3) is located in the connection end, wherein a digital display liquid crystal screen (4) is arranged on the housing (1), and wherein the pressure sensor (2) is electrically connected to the digital display liquid crystal screen (4).

2. The fire hydrant intelligent digital display pressure gauge according to claim 1, characterized in that: The housing (1) includes a mounting cavity (11), the connecting end is located at one end of the mounting cavity (11), the digital display LCD screen (4) is located at the other end of the mounting cavity (11), the pressure relief valve (3) is located in the mounting cavity (11), the liquid inlet (31) passes through the mounting cavity (11) and is located in the connecting end, and the liquid outlet (32) of the pressure relief valve (3) passes through the mounting cavity (11) away from the connecting end; the wires used for electrically connecting the pressure sensor (2) and the digital display LCD screen (4) are arranged in the mounting cavity (11).

3. The fire hydrant intelligent digital display pressure gauge according to claim 1, characterized in that: A pipe thread interface (12) is provided at the connection end, and the connection end is connected to the fire hydrant via the pipe thread interface (12).

4. The fire hydrant intelligent digital display pressure gauge according to claim 3, characterized in that: A sealing ring (13) is provided on the connection end, and the sealing ring (13) is used to seal the connection between the pipe thread interface (12) and the fire hydrant.

5. The fire hydrant intelligent digital display pressure gauge according to claim 2, characterized in that: The pressure relief valve (3) has a manual switch (33), and the manual switch (33) passes through the side wall of the installation cavity (11) and is located outside the housing (1).

6. The fire hydrant intelligent digital display pressure gauge according to claim 2, characterized in that: A mounting tube (14) is sealed and clamped in the shell (1), the tube mouth of the mounting tube (14) extends outward from the connecting end, the tube bottom of the mounting tube (14) is passed into the mounting cavity (11), the tube bottom of the mounting tube (14) has a through hole, the pressure sensor (2) is installed in the mounting tube (14), the outer wall of the pressure sensor (2) is in sealing contact with the inner wall of the mounting tube (14), and the wire used for electrically connecting the pressure sensor (2) and the digital display LCD (4) passes through the through hole.

7. The fire hydrant intelligent digital display pressure gauge according to claim 1, characterized in that: The pressure relief port diameter of the pressure relief valve (3) is 16 mm.

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