Test tool for detecting pressure switch

Abstract

The utility model discloses a test tool for detecting a pressure switch, relates to the technical field of pressure element detection, and solves the problem that the existing test device cannot flexibly adapt to the test requirements of various types of pressure switches, the test tool comprises a gas buffer, and the gas outlet end of the gas buffer is connected with a gas connector. The air connector comprises a plurality of air outlet parts, the air outlet parts are communicated with air outlet pipes respectively, each air outlet pipe is provided with a first pneumatic switch valve, and the air outlet end of each first pneumatic switch valve is connected with a pressure switch; the gas inlet end of the gas buffer is connected with a throttle valve, and the gas inlet end of the throttle valve is communicated with a gas source. The pressure switch testing device has the effect of adapting to testing of various types of pressure switches.

Description

Technical Field

[0001] This application relates to the technical field of pressure element detection, and in particular to a test tool for detecting pressure switches. Background Art

[0002] A pressure switch is an electrical controller commonly used in equipment such as machinery and water pumps to detect the pressure condition of the equipment and control the on / off state of an electrical switch. When the pressure reaches a preset threshold, the electrical switch will open or close, thereby controlling the operation of the equipment. In addition, it is very necessary to detect the pressure switch before installation to ensure that the product quality of the pressure switch used meets the requirements to meet the accuracy of subsequent control equipment.

[0003] However, different types of pressure switches have different structural and performance characteristics, and existing test devices may not be able to flexibly adapt to the test requirements of various types of pressure switches. Therefore, there is an urgent need for a test tool for detecting pressure switches to solve the above deficiencies. Utility Model Content

[0004] In order to improve the adaptability of the test, this application provides a test tool for detecting pressure switches.

[0005] This application provides a test tool for detecting pressure switches, adopting the following technical solutions:

[0006] A test tool for detecting pressure switches includes a gas buffer. The gas outlet end of the gas buffer is connected to a gas joint. The gas joint includes a plurality of gas outlet parts, and each of the plurality of gas outlet parts is connected to an outlet pipe. A first pneumatic switch valve is provided on the outlet pipe, and the gas outlet end of the first pneumatic switch valve is for connecting a pressure switch; the gas inlet end of the gas buffer is connected to a throttle valve, and the gas inlet end of the throttle valve is communicated with a gas source.

[0007] Preferably, the gas inlet end of the throttle valve is connected to a pressure regulating valve, and the pressure regulating valve is provided with a gas source joint.

[0008] Preferably, a second pneumatic switch valve is also provided between the gas buffer and the gas joint.

[0009] Preferably, the first pneumatic switch valve is located between the gas joint and the pressure switch, and both the first pneumatic switch valve and the second pneumatic switch valve adopt a knob adjustment structure.

[0010] Preferably, a connecting nut is provided at the gas outlet end of the outlet pipe.

[0011] In summary, the beneficial effects of this application:

[0012] By setting a pressure regulating valve, a throttle valve and a gas buffer, and then stably transporting the gas source to the corresponding pressure switch to be measured, and the gas connector provided is connected with a plurality of outlet pipes for different types of pressure switches to be connected. A first pneumatic switch valve for controlling the flow of the gas source is arranged on each outlet pipe, so as to accurately transport the gas source to the corresponding pressure switch to be measured for detection, thereby meeting the test requirements for various types of pressure switches. Brief Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the test tooling in this embodiment of the present application.

[0014] Description of the Reference Numerals: 1. Gas buffer; 2. Throttle valve; 3. Pressure regulating valve; 4. Gas source connector; 5. Gas connector; 51. Air outlet part; 52. Outlet pipe; 6. Second pneumatic switch valve; 7. First pneumatic switch valve; 8. Connecting nut. Detailed Description of the Embodiment

[0015] The following further describes the present application in detail with reference to the accompanying drawings of the specification.

[0016] Referring to Figure 1 , a test tooling for detecting a pressure switch disclosed in an embodiment of the present application includes a gas buffer 1. The inlet end of the gas buffer 1 is connected with a throttle valve 2, and the model is AS1000-M5; the gas flow between the gas buffer 1 and the throttle valve 2 is realized through a gas pipe (a gas pipe with a diameter of 6 mm, hereinafter referred to as D6 gas pipe).

[0017] Referring to Figure 1 , specifically, the inlet end of the throttle valve 2 is connected with a pressure regulating valve 3, and the model of the pressure regulating valve 3 is selected as IR1020-01BG(0); the gas flow between the throttle valve 2 and the pressure regulating valve 3 is also realized through a gas pipe (adopting D6 gas pipe). A gas source connector 4 with the model of KQ2H06-M5A is installed at the pressure regulating valve 3 for connecting the gas source.

[0018] Referring to Figure 1 , in addition, the outlet end of the gas buffer 1 is connected with a gas connector 5. In this embodiment, the gas connector 5 adopts a cross gas connector 5, and the model is XXT21-D6-B. The gas flow between the gas buffer 1 and the gas connector 5 is realized through a gas pipe (adopting D6 gas pipe), and a second pneumatic switch valve 6 is installed between the gas buffer 1 and the gas connector 5 on this gas pipe for protecting the safety of the gas circuit. And the second pneumatic switch valve 6 adopts a knob adjustment structure, which is convenient for manual control.

[0019] Referring to Figure 1, Further, in this embodiment, the air joint 5 includes three air outlet parts 51, and each air outlet part 51 is connected to an air outlet pipe 52. A first pneumatic switch valve 7 is installed at the middle position of the air outlet pipe 52. Among them, the air outlet end of the first pneumatic switch valve 7 is for the pressure switch to connect. Specifically, a connecting nut 8 is installed at the air outlet end of the air outlet pipe 52, and the pressure switch to be measured is connected to the air outlet pipe 52 by means of a threaded connection. In addition, the first pneumatic switch valve 7 is located between the air joint 5 and the pressure switch, and the first pneumatic switch valve 7 adopts a knob adjustment structure, which is convenient for manual control.

[0020] The implementation principle of a test tool for detecting a pressure switch in an embodiment of the present application is as follows:

[0021] By setting the pressure regulating valve 3, the throttle valve 2 and the gas buffer 1, a stable and adjustable gas source is provided. And the air joint 5 is connected with a plurality of air outlet pipes 52 for different types of pressure switches to connect. A first pneumatic switch valve 7 for controlling the flow of the gas source is installed on each air outlet pipe 52, so as to accurately deliver the gas source to the corresponding pressure switch to be measured for detection, and then meet the test requirements for adapting to various types of pressure switches.

[0022] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A test tool for detecting a pressure switch, characterized in that: It includes a gas buffer (1), an air connector (5) is connected to the air outlet end of the gas buffer (1), the air connector (5) includes a plurality of air outlet parts (51), and a plurality of the air outlet parts (51) are respectively communicated with air outlet pipes (52). A first pneumatic switch valve (7) is arranged on the air outlet pipe (52), and the air outlet end of the first pneumatic switch valve (7) is for connecting a pressure switch; an intake end of the gas buffer (1) is connected to a throttle valve (2), and the intake end of the throttle valve (2) is communicated with a gas source.

2. The test tool for detecting a pressure switch according to claim 1, characterized in that: An intake end of the throttle valve (2) is connected to a pressure regulating valve (3), and the pressure regulating valve (3) is provided with a gas source connector (4).

3. The test tool for detecting a pressure switch according to claim 1, characterized in that: A second pneumatic switch valve (6) is also arranged between the gas buffer (1) and the air connector (5).

4. The test tool for detecting a pressure switch according to claim 3, characterized in that: The first pneumatic switch valve (7) is located between the air connector (5) and the pressure switch, and both the first pneumatic switch valve (7) and the second pneumatic switch valve (6) adopt a knob adjustment structure.

5. The test tool for detecting a pressure switch according to claim 1, wherein: A connecting nut (8) is arranged at the air outlet end of the air outlet pipe (52).

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