A pipe tightness testing device

Abstract

The utility model provides a kind of pipe fitting air tightness testing device, including controller, display, air pipe, probe needle tube and several rubber plugs, one end of air pipe is communicated with one end of probe needle tube, the other end of probe needle tube is used to pierce rubber plug and introduce the airflow in pipe fitting into air pipe, the other end of air pipe is equipped with air pressure sensor, air pressure sensor, display is electrically connected with controller respectively, air pressure sensor is used to detect and obtain air pressure information in air pipe, controller is used to receive air pressure information from air pressure sensor and forward it to display.Using the technical scheme of the utility model, air pipe and pipe fitting can be connected or cut off at any time, so that the pipe fitting air tightness testing device is convenient to carry or transfer, the step of injecting detection airflow and the pipe fitting air tightness testing step are separated from each other, so that the operator can detect or find whether the pipe fitting has slow leakage defect, and avoid the operator from making false judgment on the pipe fitting air tightness.

Description

Technical Field

[0001] This utility model belongs to the technical field of airtightness testing devices, and in particular, it is a pipe fitting airtightness testing device. Background Technology

[0002] Pipes are generally used to transport various fluid media. In order to prevent leaks, it is necessary to test the airtightness of the pipes. Existing pipe airtightness testing devices generally include a flow guide tube. When using existing pipe airtightness testing devices, there are usually two operating steps: injecting test fluid into the pipe and the flow guide tube respectively, and testing various parameters of the test fluid, and then making a judgment on the airtightness of the pipe to be tested.

[0003] In the prior art, patent document with publication number "CN220690353U" discloses an underground pipeline airtightness testing device, including a vertical plate, a silicone tube, a tee connector, an air pump, and a pair of end caps. The end caps are fitted onto the two ends of the underground pipeline to be tested. One end of the silicone tube is wound into a U-shape and fixed to the vertical plate, and its interior is filled with water. The other end of the silicone tube is connected to the first end of the tee connector. The second end of the tee connector is connected to the air pump. The third end of the tee connector is also connected to the underground pipeline to be tested through one of the end caps. This patented technology allows operators to easily carry the device to the field to conduct airtightness testing of underground pipelines. However, existing pipe airtightness testing devices require continuous communication between the guide pipe and the pipe fitting during use. The steps of injecting the test fluid into the pipe fitting and the guide pipe, and the steps of testing various parameters of the test fluid, must be completed step by step within a continuous and short time period. If there are micropores on the surface of the pipe fitting, and the pipe fitting is in a state of slow leakage, it is not easy to detect or discover the slow leakage defect of the pipe fitting because the existing pipe airtightness testing device is only completed within a continuous and short time period. This leads to the operator making a misjudgment of the airtightness of the pipe fitting, affecting the reliability of the pipe airtightness test results. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a pipe fitting airtightness testing device.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a pipe fitting airtightness testing device, including a controller, a display, an air guide tube, a probe tube, and several rubber plugs. The rubber plugs are used to block the various airflow outlets of the pipe fitting. One end of the air guide tube is connected to one end of the probe tube, and the other end of the probe tube is used to pierce the rubber plugs and introduce airflow from the pipe fitting into the air guide tube. A pressure sensor is provided at the other end of the air guide tube. The pressure sensor and the display are electrically connected to the controller. The pressure sensor is used to detect and acquire the air pressure information in the air guide tube. The controller is used to receive the air pressure information from the pressure sensor and forward it to the display. The display is used to show the air pressure information to the user.

[0007] The pipe fitting airtightness testing device also includes a cover and a base plate. The lower end of the cover is open, and the base plate covers the open end of the cover. The controller and the display are both fixedly connected to the cover, and the air pressure sensor is housed inside the cover.

[0008] The cover is also fixedly connected to an indicator light, which is electrically connected to the controller. The controller is also used to compare the threshold information stored inside with the air pressure information. When the air pressure information is not less than the threshold information, the controller will turn on the indicator light.

[0009] The housing is also fixedly connected to the speaker, which is electrically connected to the controller. The controller is also used to compare the threshold information stored inside it with the air pressure information. When the air pressure information is not less than the threshold information, the controller drives the speaker to emit a prompt sound signal.

[0010] The housing is also fixedly connected to the rocker switch, and a battery is also provided inside the housing. The battery, the rocker switch, and the controller are connected by wires to form a power supply circuit.

[0011] The cover is a truncated quadrangular shape, with one end smaller than the other.

[0012] The controller is a microcontroller with at least 16 bits of processing power.

[0013] The display can be replaced by a pressure gauge.

[0014] The rubber plug is a truncated cone shape with one end smaller than the other.

[0015] The probe tube is cone-shaped.

[0016] The beneficial effects of this utility model are as follows: Using the technical solution of this utility model, firstly, a test airflow is injected into the pipe fitting, and then each airflow outlet of the pipe fitting is blocked with a rubber plug, completing the step of injecting test airflow into the pipe fitting; when needed by the user, the probe tube pierces the rubber plug, allowing the airflow in the pipe fitting to be introduced into the air guide tube. The air pressure information of the airflow in the conductor tube is obtained through the air pressure sensor, and then the air pressure information is displayed to the user, completing the step of testing the air tightness of the pipe fitting; compared with the prior art, the air guide tube and the pipe fitting can be connected or disconnected at any time, and the air guide tube and the pipe fitting do not need to be kept connected for a long time. On the one hand, this makes the pipe fitting air tightness testing device easy to carry or transfer; on the other hand, the step of injecting test airflow and the step of testing the pipe fitting air tightness are separated from each other, allowing the operator to test the air tightness of the pipe fitting 24 hours after the step of injecting test airflow, thus enabling the operator to detect or discover whether there is a slow leakage defect in the pipe fitting, avoiding misjudgment of the pipe fitting air tightness by the operator, and ensuring the reliability of the pipe fitting air tightness test results. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] In the diagram: 1-Controller, 2-Display, 3-Gas tube, 4-Detector needle, 5-Rubber plug, 6-Cover, 7-Base plate, 8-Indicator light, 9-Speaker, 10-Rocker switch. Detailed Implementation

[0019] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0020] like Figure 1 As shown, this utility model provides a pipe fitting airtightness testing device, including a controller 1, a display 2, an air guide tube 3, a probe tube 4, and several rubber plugs 5. The rubber plugs 5 are used to block the various airflow outlets of the pipe fitting. One end of the air guide tube 3 is connected to one end of the probe tube 4. The other end of the probe tube 4 is used to pierce the rubber plugs 5 and introduce the airflow in the pipe fitting into the air guide tube 3. The other end of the air guide tube 3 is equipped with a pressure sensor. The pressure sensor and the display 2 are electrically connected to the controller 1. The pressure sensor is used to detect and acquire the air pressure information in the air guide tube 3. The controller 1 is used to receive the air pressure information from the pressure sensor and forward it to the display 2. The display 2 is used to display the air pressure information to the user.

[0021] The technical solution of this utility model involves first injecting test airflow into the pipe fitting, then blocking each airflow outlet of the pipe fitting with rubber plugs to complete the step of injecting test airflow into the pipe fitting. When needed by the user, the probe tube pierces the rubber plug, allowing the airflow inside the pipe fitting to be introduced into the air guide tube. The air pressure information of the airflow inside the conductor tube is obtained through the air pressure sensor, and then the air pressure information is displayed to the user, completing the step of testing the air tightness of the pipe fitting. Compared with the prior art, the air guide tube and the pipe fitting can be connected or disconnected at any time, and the air guide tube and the pipe fitting do not need to be kept connected for a long time. On the one hand, this makes the pipe fitting air tightness testing device easy to carry or transfer. On the other hand, the step of injecting test airflow and the step of testing the pipe fitting air tightness are separated from each other, allowing the operator to test the air tightness of the pipe fitting 24 hours after the step of injecting test airflow. This allows the operator to detect or discover whether there is a slow leakage defect in the pipe fitting, avoiding misjudgment of the pipe fitting air tightness by the operator and ensuring the reliability of the pipe fitting air tightness test results.

[0022] Specifically, the air duct 3 is a non-metallic silicone tube or a non-metallic rubber tube. The pipe airtightness testing device also includes a cover 6 and a base plate 7. The lower end of the cover 6 is open, and the base plate 7 covers the open end of the cover 6. The controller 1 and the display 2 are both fixedly connected to the cover 6, and the air pressure sensor is housed inside the cover 6. By adopting the technical solution of this utility model, all components are centrally assembled inside the cover, making the pipe airtightness testing device easy to carry or transfer, and convenient for the operator to use.

[0023] In addition, the housing 6 is fixedly connected to the indicator light 8, which is electrically connected to the controller 1. The controller 1 is also used to compare the threshold information stored inside with the air pressure information. When the air pressure information is not less than the threshold information, the controller 1 illuminates the indicator light 8. The housing 6 is also fixedly connected to the speaker 9, which is electrically connected to the controller 1. The controller 1 is also used to compare the threshold information stored inside with the air pressure information. When the air pressure information is not less than the threshold information, the controller 1 drives the speaker 9 to emit a prompt sound signal. By adopting the technical solution of this utility model, by setting the indicator light 8 and the speaker 9, light or sound signals are emitted to the operator to provide corresponding prompts, thereby improving the accuracy of the operator's judgment on the airtightness of the pipe fittings and avoiding misjudgment.

[0024] Specifically, the housing 6 is also fixedly connected to the rocker switch 10, and a battery is also installed inside the housing 6. The battery, the rocker switch 10, and the controller 1 are connected by wires to form a power supply circuit. The battery is used to power the controller 1, and the battery is preferably two AA dry cell batteries, making the pipe airtightness testing device easy to carry.

[0025] Furthermore, the housing 6 is a truncated pyramid shape with one end smaller than the other. The controller 1 is a microcontroller with at least 16 bits of processing power. The display 2 can be replaced by a pressure gauge. The rubber plug 5 is a truncated cone shape with one end smaller than the other. The probe tube 4 is a cone shape.

Claims

1. A device for testing the airtightness of pipe fittings, characterized in that: The device includes a controller (1), a display (2), an air duct (3), a probe tube (4), and several rubber plugs (5). The rubber plugs (5) are used to block the airflow outlets of the pipe. One end of the air duct (3) is connected to one end of the probe tube (4). The other end of the probe tube (4) is used to pierce the rubber plugs (5) and introduce the airflow in the pipe into the air duct (3). The other end of the air duct (3) is equipped with a pressure sensor. The pressure sensor and the display (2) are electrically connected to the controller (1). The pressure sensor is used to detect and acquire the pressure information in the air duct (3). The controller (1) is used to receive the pressure information from the pressure sensor and forward it to the display (2). The display (2) is used to display the pressure information to the user.

2. The pipe fitting airtightness testing device as described in claim 1, characterized in that: The pipe fitting air tightness testing device also includes a cover (6) and a base plate (7). The lower end of the cover (6) is open, and the base plate (7) covers the open end of the cover (6). The controller (1) and the display (2) are both fixedly connected to the cover (6), and the air pressure sensor is housed inside the cover (6).

3. The pipe fitting airtightness testing device as described in claim 2, characterized in that: The cover (6) is also fixedly connected to the indicator light (8), and the indicator light (8) is electrically connected to the controller (1). The controller (1) is also used to compare the threshold information stored inside with the air pressure information. When the air pressure information is not less than the threshold information, the controller (1) will turn on the indicator light (8).

4. The pipe fitting airtightness testing device as described in claim 2, characterized in that: The cover (6) is also fixedly connected to the speaker (9), and the speaker (9) is electrically connected to the controller (1). The controller (1) is also used to compare the threshold information stored inside it with the air pressure information. When the air pressure information is not less than the threshold information, the controller (1) drives the speaker (9) to emit a prompt sound signal.

5. The pipe fitting airtightness testing device as described in claim 2, characterized in that: The housing (6) is also fixedly connected to the rocker switch (10). A battery is also provided inside the housing (6). The battery, the rocker switch (10), and the controller (1) are connected by wires to form a power supply circuit.

6. A pipe fitting airtightness testing device as described in any one of claims 2 to 5, characterized in that: The cover (6) is a truncated quadrangular shape with one end smaller than the other.

7. A pipe fitting airtightness testing device as described in any one of claims 1 to 5, characterized in that: The controller (1) is a microcontroller with an arithmetic bit depth of not less than 16 bits.

8. A pipe fitting airtightness testing device as described in claim 1 or 2, characterized in that: The display (2) can be replaced by a pressure gauge.

9. The pipe fitting airtightness testing device as described in claim 1, characterized in that: The rubber plug (5) is a truncated cone shape with one end smaller than the other.

10. The pipe fitting airtightness testing device as described in claim 1, characterized in that: The probe tube (4) is cone-shaped.

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