Pressure gauge batch detection device

Abstract

The utility model discloses a pressure gauge batch detection device which comprises a detection box body, a ventilation main pipe is transversely inserted into the detection box body, the ventilation main pipe is sequentially communicated with a plurality of pressure gauge communicating pipes in the length direction, and branch valves are installed on the pressure gauge communicating pipes. The ventilation main pipe is also communicated with a standard pressure gauge; a main valve is mounted at the air inlet end of the ventilation main pipe; an external thread is formed on the outer surface of the pressure gauge communicating pipe, a step is formed on the inner wall of the pressure gauge communicating pipe, and a sealing ring is arranged on the step; the ventilation main pipe is in threaded connection with a first internal thread sleeve through the external threads, and the inner side of the upper portion of the first internal thread sleeve is rotationally connected with a second internal thread sleeve through a bearing. According to the utility model, the pressure gauges to be detected can face one side while being tightly connected during detection, so that the data of each pressure gauge can be conveniently recorded, which pressure gauges have the problem of low-speed air leakage can be conveniently judged in batches, the pressure gauges can be detected in batches, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical field, specifically relates to a pressure gauge batch detection device. BACKGROUND

[0002] Pressure gauge needs to be detected regularly, so as to avoid pipeline burst and other accidents caused by inaccurate pressure detection. At present, the detection device of the pressure gauge mostly detects one by one, so the detection efficiency is low. In view of this, the utility model patent 2022215000894 discloses a barometer detection device which adopts one pipeline to detect multiple barometers, and detects whether the barometer leaks by clamping a paper strip. However, it has the following problems:

[0003] 1. Many barometers leak slowly, which cannot obviously blow the paper strip, so it is usually necessary to wait for the pressure gauge reading to be stable, and then to stand still for more than two hours to see whether the reading of the pressure gauge decreases, which cannot detect the slow leakage.

[0004] 2. Multiple pressure gauges are connected to each other, so that when one pressure gauge leaks, the remaining pressure gauges will be inaccurate, so when detecting, if one leaks, all the pressure gauges will be inaccurate, especially in the case of slow leakage, it is also impossible to detect which pressure gauge has the problem of slow leakage and replace it.

[0005] 3. The pressure gauge is installed by screwing, and needs to be tightened for air tightness, so the surface direction of the pressure gauge is uncertain after being fixed. However, during detection, it is necessary to take pictures for record and subsequent inspection, and the different surface directions of the pressure gauges lead to the need to take pictures for each pressure gauge and correspondingly number the pictures, resulting in a complicated detection process. UTILITY MODEL CONTENT

[0006] The utility model aims to provide a pressure gauge batch detection device.

[0007] To solve the above problems, the technical scheme of the utility model is as follows:

[0008] A pressure gauge batch detection device, comprising a detection box body, a ventilation main pipe is transversely inserted into the detection box body, the ventilation main pipe is sequentially communicated with multiple pressure gauge communication pipes along the length direction, a shunt valve is installed on the pressure gauge communication pipe; the ventilation main pipe is also communicated with a standard pressure gauge; a main valve is installed at the air inlet end of the ventilation main pipe; an outer thread is formed on the outer surface of the pressure gauge communication pipe, a ladder is formed on the inner wall of the pressure gauge communication pipe, and a sealing ring is arranged on the ladder; the ventilation main pipe is threadedly connected with a first inner thread sleeve through the outer thread, the first inner thread sleeve is rotatably connected with a second inner thread sleeve through a bearing on the inner side of the upper part of the first inner thread sleeve, and the second inner thread sleeve is threadedly connected with the connecting pipe of the pressure gauge to be detected through the inner thread.

[0009] In a further improvement, the upper part of the second internal threaded sleeve protrudes out of the first internal threaded sleeve to form a protruding rotating part.

[0010] In a further improvement, both the branch valves and the main valve are solenoid valves, and the solenoid valves are connected to a solenoid valve controller via communication.

[0011] As a further improvement, a thermometer socket is fixed on the detection box.

[0012] A further improvement is that the front end of the ventilation main pipe is formed with a connecting nozzle.

[0013] In a further improvement, the end of the main ventilation pipe is provided with an air outlet, and an air release valve is installed on the air outlet.

[0014] As a further improvement, a damping pad is installed at the bottom of the detection chamber.

[0015] Advantages of this utility model:

[0016] 1. It can keep the pressure gauges under test tightly connected while facing one side during testing, so as to facilitate the recording of data from each pressure gauge.

[0017] 2. Facilitates batch identification of pressure gauges with slow leakage issues.

[0018] 3. It allows for batch testing of pressure gauges, improving testing efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the technical solutions in the embodiments of this utility model will be clearly and completely described below.

[0021] like Figure 1 The pressure gauge batch testing device shown includes a testing chamber 1, a main vent pipe 2, an air inlet 21, an air outlet 22, a vent valve 23, a pressure gauge connecting pipe 3, a step 31, a sealing ring 32, a branch valve 4, a standard pressure gauge 5, a main valve 6, a first internal threaded sleeve 7, a bearing 8, a second internal threaded sleeve 9, a protruding rotating part 91, a pressure gauge to be tested 10, a connecting pipe 101, a thermometer socket 11, and a damping pad 12.

[0022] The ventilation main pipe 2 is inserted into the detection box 1, the right end of the ventilation main pipe 2 is a gas connection nozzle 21 for providing a pipeline connection to a gas pump and other pressurizing devices, the gas connection nozzle 21 is installed with a main valve 6; the left end is a gas outlet nozzle 22, the gas outlet nozzle 22 is installed with a gas release valve 23, and the gas release valve 23 is finely adjusted to release gas to make the pointer of the standard pressure gauge 5 point to a certain whole scale. If the standard pressure gauge 5 is an electronic gauge, the whole scale value is displayed.

[0023] A plurality of vertically arranged pressure gauge communication pipes 3 are sequentially connected in length direction on the top of the ventilation main pipe 2

[0024] The outer surface of the pressure gauge communication pipe 3 is formed with external threads, the inner wall of the pressure gauge communication pipe 3 is formed with a step 31, and the step 31 is provided with a sealing ring 32; the ventilation main pipe 2 is threadedly connected with a first internally threaded sleeve 7 through external threads, the upper inner side of the first internally threaded sleeve 7 is rotatably connected with a second internally threaded sleeve 9 through a bearing 8, and the second internally threaded sleeve 9 is threadedly connected with the connecting pipe 101 of the to-be-detected pressure gauge 10 through internal threads. The upper part of the second internally threaded sleeve 9 protrudes out of the first internally threaded sleeve 7 to form a protruding rotating part 91.

[0025] The use method is as follows:

[0026] First, install the to-be-detected pressure gauge 10, threadedly connect the connecting pipe 101 of the to-be-detected pressure gauge 10 with the second internally threaded sleeve 9, and screw to expose the bottom of the connecting pipe 101. Insert the connecting pipe 101 into the pressure gauge communication pipe 3, hold the surface of the to-be-detected pressure gauge 10 forward with one hand, and threadedly connect the first internally threaded sleeve 7 with the pressure gauge communication pipe 3 with the other hand, so that the connecting pipe 101 is lowered until the bottom is pressed against the sealing ring 32 on the step 31 to realize screwing fixation.

[0027] Then, detect the air tightness of each to-be-detected pressure gauge 10:

[0028] Open the main valve 6 and branch valve 4, high pressure gas is introduced into the ventilation main pipe 2, then close the main valve 6 and branch valve 4, then take a picture and record the current pressure value of each to be measured pressure gauge 10 as the initial pressure value. Wait for 2-4 hours to take a picture again and record the measured pressure value of each to be measured pressure gauge 10, if the measured pressure value is lower than the initial pressure value, it means that the corresponding to be measured pressure gauge 10 has air tightness problem, it is taken out for subsequent check test. Then the to be measured pressure gauge 10 is adjusted: the branch valve 4 on the pressure gauge communication pipe 3 still installed with to be measured pressure gauge 10 is opened, after opening the branch valve 4, the to be measured pressure gauge 10 and the standard pressure gauge 5 are in the same gas circuit, so their pressures are the same, then slightly open the air release valve 23 until the pointer of the standard pressure gauge 5 points to a specific scale on the dial, preferably a large scale, then close the air release valve 23. At this time, take a picture and record, if the value displayed by the to be measured pressure gauge 10 is different from that of the standard pressure gauge 5, it needs to be adjusted, and the adjustment is completed when the value is the same as that of the standard pressure gauge 5. At this time, open the air release valve 23 to release air, then disassemble the to be measured pressure gauge 10.

[0029] Wherein the branch valve 4 and the main valve 6 can be solenoid valves, the solenoid valves are in communication connection with a solenoid valve controller.

[0030] The detection box 1 is also fixed with a thermometer socket 11 for inserting a thermometer to record the air temperature of the air pressure detection chamber.

[0031] The detection box 1 is also fixed with a thermometer socket 11 for inserting a thermometer to record the air temperature of the air pressure detection chamber.

[0032] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pressure gauge batch detection device, characterized by, The utility model provides a detection box, detection box (1) is inserted with the aeration main pipe (2) transversely, and the aeration main pipe (2) is communicated with a plurality of pressure gauge communication pipes (3) in turn along the length direction, and the shunt valve (4) is installed on the pressure gauge communication pipe (3), the aeration main pipe (2) is also communicated with the standard pressure gauge (5), and the air inlet end of aeration main pipe (2) is installed with the main valve (6), the outer surface of pressure gauge communication pipe (3) is formed with external thread, and the inner wall of pressure gauge communication pipe (3) is formed with the ladder (31), and the sealing ring (32) is arranged on the ladder (31), the aeration main pipe (2) is connected with the first internal thread sleeve (7) with external thread, and the second internal thread sleeve (9) is rotatably connected with the connecting pipe (101) of the pressure gauge (10) to be measured through internal thread on the upper inner side of first internal thread sleeve (7) through bearing (8).

2. The pressure gauge batch detection device according to claim 1, wherein The second internal thread sleeve (9) is formed with the convex rotation part (91) in the upper part of first internal thread sleeve (7) and projects out.

3. The pressure gauge batch detection device according to claim 1, wherein The shunt valve (4) and main valve (6) are both solenoid valves, and the solenoid valve is connected with a solenoid valve controller.

4. The pressure gauge batch detection device according to claim 1, wherein The detection box (1) is fixed with a thermometer socket (11).

5. The pressure gauge batch detection device according to claim 1, wherein The aeration main pipe (2) is formed with a connecting air nozzle (21) at the front end.

6. The pressure gauge batch detection device according to claim 1, wherein The aeration main pipe (2) is formed with an air outlet nozzle (22) at the end, and a gas release valve (23) is installed on the air outlet nozzle (22).

7. The pressure gauge batch detection device according to any one of claims 1 to 6, wherein The detection box (1) is installed with a damping pad (12) at the bottom.

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