Air tightness detection device of pneumatic actuator

Abstract

The utility model relates to an air tightness detection device of a pneumatic actuator. Comprising a box body, an air pressure adjusting structure, an air pressure control structure and an air pressure detection structure, and the air pressure adjusting structure, the air pressure control structure and the air pressure detection structure are all arranged in the box body; an air inlet of the air pressure adjusting structure is connected with an air source inlet which is arranged on the box body, an air outlet of the air pressure adjusting structure is connected with an air inlet of the air pressure control structure, an air outlet of the air pressure control structure is connected with one end of the air pressure detection structure, and the other end of the air pressure detection structure is connected with an air source outlet which is connected with the pneumatic actuator. According to the utility model, the gas meeting the required pressure of the pneumatic actuator to be detected is stored in the pneumatic actuator, the sealing performance is ensured, the pressure of the stored gas is detected, and the pressure change value of the stored gas is observed and compared with a standard value within a certain period of time, so that the air tightness detection of the pneumatic actuator to be detected is completed.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to a device for testing the airtightness of a pneumatic actuator. Background Technology

[0002] With the vigorous development of the instrumentation industry, actuators used in valve control are gaining increasing market demand. For pneumatic actuators, airtightness testing is one of the most important indicators and a crucial pre-shipment test. Traditional testing methods involve manual water spraying, which is labor-intensive, inefficient, and prone to omissions, resulting in substandard products entering the market. Therefore, there is an urgent need for an airtightness testing device for pneumatic actuators that can improve worker efficiency and reduce labor intensity. Summary of the Invention

[0003] Therefore, this utility model provides an airtightness testing device for pneumatic actuators to solve the problems mentioned in the background art, such as low efficiency and easy omissions in traditional manual testing.

[0004] The technical solution of this utility model is as follows: an airtightness detection device for a pneumatic actuator, comprising: a housing, a pressure regulating structure, a pressure control structure, and a pressure detection structure, wherein the pressure regulating structure, the pressure control structure, and the pressure detection structure are all disposed within the housing;

[0005] The air inlet of the air pressure regulating structure is connected to the air source inlet, which is located on the housing. The air outlet of the air pressure regulating structure is connected to the air inlet of the air pressure control structure. The air outlet of the air pressure control structure is connected to one end of the air pressure detection structure. The other end of the air pressure detection structure is connected to the air source outlet, which is connected to the pneumatic actuator. The air pressure regulating structure is used to regulate the gas pressure entering the device. The air pressure control structure is used to seal the gas inside the pneumatic actuator. The air pressure detection structure is used to detect the pressure of the gas sealed inside the pneumatic actuator.

[0006] Furthermore, the pressure regulating structure includes a pressure regulating valve and a first pressure gauge, the first pressure gauge being connected to the pressure regulating valve, the air inlet of the pressure regulating valve being connected to the air source inlet, and the air outlet of the pressure regulating valve being connected to the pressure control structure.

[0007] Furthermore, the air pressure control structure includes a switch and a solenoid valve. The switch is electrically connected to the solenoid valve. One end of the solenoid valve is connected to the air outlet of the air pressure regulating structure, and the other end of the solenoid valve is connected to the air pressure detection structure.

[0008] Furthermore, the air pressure detection structure includes a three-way connector and a second pressure gauge. The second pressure gauge is connected to one interface of the three-way connector, and the other two interfaces of the three-way connector are respectively connected to the air outlet and the air source outlet of the air pressure control structure.

[0009] Furthermore, the second pressure gauge is a digital pressure gauge.

[0010] Furthermore, it also includes a power module, which is electrically connected to the air pressure control structure and the air pressure detection structure respectively, and supplies power to the air pressure control structure and the air pressure detection structure.

[0011] Furthermore, the power module includes a power switch, a power socket, a power bank, and a voltage regulator, wherein the power switch, the power socket, and the voltage regulator are respectively connected to the power bank.

[0012] Furthermore, a handle is provided on the top of the box.

[0013] The beneficial effects of this invention are as follows: This invention stores gas that meets the pressure requirements of the pneumatic actuator under test inside the actuator while ensuring its airtightness. By monitoring the pressure of the stored gas over a certain period and comparing the pressure change with a standard value, the airtightness of the pneumatic actuator under test is determined. This invention is simple to operate, highly efficient, and displays the pressure parameters using a pressure gauge, which is more intuitive than manual water spraying and reduces the likelihood of missed detections. Attached Figure Description

[0014] Figure 1 This is a structural block diagram of the present invention.

[0015] Figure 2 This is an isometric drawing of this utility model.

[0016] Figure 3 This is a schematic diagram of the power module connection for this patent.

[0017] Figure 4 This is an isometric view of the air pressure regulating structure of this patent.

[0018] Figure 5 This is an isometric drawing of the pneumatic control structure of this patent.

[0019] Figure 6 This is an isometric view of the air pressure detection structure of this patent.

[0020] Figure 7 This is the main view of the pneumatic actuator clamping device of this patent. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0022] In the technical solution of this utility model, Figure 1 and Figure 2 This is a structural diagram provided based on the specific structure of an airtightness testing device for a pneumatic actuator according to this utility model, as shown in the diagram. Figure 1 and Figure 2 As shown, this utility model includes:

[0023] It includes a housing 1, an air pressure regulating structure 3, an air pressure control structure 4, and an air pressure detection structure 5, all of which are located inside the housing 1.

[0024] The air inlet of the air pressure regulating structure 3 is connected to the air source inlet, the air outlet of the air pressure regulating structure 3 is connected to the air inlet of the air pressure control structure 4, the air outlet of the air pressure control structure 4 is connected to one end of the air pressure detection structure 5, the other end of the air pressure detection structure 5 is connected to the air source outlet, the air source inlet and the air source outlet are both located on the housing 1, and the air source outlet is connected to the pneumatic actuator 6.

[0025] Among them, the box 1 serves as the installation carrier of this device. It has a frame structure and a handle on the top for easy handling.

[0026] The air pressure regulating structure 3 is used to regulate the gas pressure entering the device to meet the pressure requirements of the pneumatic actuator under test.

[0027] The air pressure control structure 4 is used to enclose the gas inside the pneumatic actuator 6. It can store the gas that meets the pressure requirements of the actuator under test inside the pneumatic actuator under test and ensure the airtightness.

[0028] The air pressure detection structure 5 is used to detect the pressure of the gas enclosed in the pneumatic actuator 6, and can detect and display the pressure of the gas stored in the pneumatic actuator under test in real time.

[0029] In one embodiment of this utility model, such as Figure 4As shown, the air pressure regulating structure 3 includes a pressure regulating valve 31 and a first pressure gauge 32. The first pressure gauge 32 is connected to the pressure regulating valve 31. The air inlet of the pressure regulating valve 31 is connected to the air source inlet, and the air outlet of the pressure regulating valve 31 is connected to the air pressure control structure 4. The first pressure gauge can be a conventional pointer pressure gauge.

[0030] Specifically, the pressure regulating valve 31 is installed onto the housing 1 using standard threaded fasteners, and the adjusting knob of the pressure regulating valve 31 protrudes outside the housing 1. The first pressure gauge 32 is installed onto the side wall of the housing 1 using standard threaded fasteners, and the connection port of the pressure regulating valve 31 is connected to the first pressure gauge 32 via a standard air pipe. The air inlet of the pressure regulating valve 31 is connected to the air source via a standard air pipe, and the air outlet of the pressure regulating valve 31 is connected to the solenoid valve 42 via a standard air pipe.

[0031] In one embodiment of this utility model, such as Figure 5 As shown, the air pressure control structure 4 includes a switch 41 and a solenoid valve 42. The switch 41 is electrically connected to the solenoid valve 42. One end of the solenoid valve 42 is connected to the air outlet of the air pressure regulating structure 3, and the other end of the solenoid valve 42 is connected to the air pressure detection structure 5.

[0032] The solenoid valve 42 can be a center-sealed solenoid valve, and the switch 41 can be a rotary switch. The rotary switch is installed on the housing 1 using standard threaded fasteners and protrudes from the housing 1. The center-sealed solenoid valve is installed inside the housing 1 using standard threaded fasteners. The rotary switch and the center-sealed solenoid valve are electrically connected to the power module. The switch 41 is connected to the control terminal of the solenoid valve. The air inlet of the center-sealed solenoid valve is connected to the air outlet of the pressure regulating valve 31 through a standard air pipe, and the air outlet of the center-sealed solenoid valve is connected to the three-way connector 52 through a standard air pipe.

[0033] In one embodiment of this utility model, such as Figure 6 As shown, the air pressure detection structure 5 includes a three-way connector 52 and a second pressure gauge 51. The second pressure gauge 51 is connected to one interface of the three-way connector 52, and the other two interfaces of the three-way connector 52 are respectively connected to the air outlet and the air source outlet of the air pressure control structure 4. The second pressure gauge 51 is a digital display pressure gauge.

[0034] The air pressure detection structure 5 is located in a sealed air circuit. One port of the three-way connector 52 is connected to the output end of the pressure regulating valve 31 through a standard air pipe, and the other port is connected to the actuator 6 under test through a standard air pipe. The high-precision digital display pressure gauge 51 is connected to the last port of the three-way connector 52 through a standard threaded fastener.

[0035] In one embodiment of this utility model, such as Figure 3As shown, the system also includes a power module 2, which is electrically connected to both the air pressure control structure 4 and the air pressure detection structure 5, supplying power to them. The power module 2 includes a power switch 21, a power socket 22, a power supply 23, and a voltage regulator 24. The power switch 21, power socket 22, and voltage regulator 24 are all connected to the power supply 23. The power switch 21 controls the on / off state of the power supply 23, the power socket 22 provides a charging interface for the power bank, and the voltage regulator 24 stabilizes the voltage output from the power supply 23. The power module 2 is connected to the pre-drilled mounting holes on the housing 1 using standard threaded fasteners. The power module 2 serves as the power source for the entire system, providing it with energy.

[0036] like Figure 7 As shown, the testing process of this utility model is as follows: With the above-described structure, gas meeting the required pressure of the pneumatic actuator under test is introduced into the actuator via a pressure regulating valve. The gas is then stored within the actuator via a solenoid valve. Within a certain time period, the pressure change of the stored gas is observed using a high-precision digital display on a pressure gauge and compared with a standard value, thus completing the airtightness test of the pneumatic actuator under test. This patent completes the airtightness test of the pneumatic actuator through the coordinated operation of a pressure control structure and a pressure detection structure. It replaces traditional manual water spray testing, and the test results are digitally displayed, greatly improving work efficiency, product quality, and reducing labor intensity.

[0037] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for detecting the air tightness of a pneumatic actuator, characterized in that The utility model relates to a kind of gas pressure control device, including: Box (1), air pressure regulating structure (3), air pressure control structure (4) and air pressure detection structure (5), the air pressure regulating structure (3), air pressure control structure (4) and air pressure detection structure (5) are all set in the box (1) inside; The air inlet of the air pressure regulating structure (3) is connected with gas source inlet, the air outlet of the air pressure regulating structure (3) is connected with the air inlet of the air pressure control structure (4), the air outlet of the air pressure control structure (4) is connected with one end of the air pressure detection structure (5), the other end of the air pressure detection structure (5) is connected with gas source outlet, the gas source outlet is connected with pneumatic actuator (6), the air pressure regulating structure (3) is used to adjust the gas pressure entering device, the air pressure control structure (4) is used to seal gas in pneumatic actuator (6), the air pressure detection structure (5) is used to detect the pressure of gas sealed in pneumatic actuator (6).

2. The air tightness detecting device of a pneumatic actuator according to claim 1, wherein The air pressure regulating structure (3) includes pressure regulating valve (31) and first pressure gauge (32), the first pressure gauge (32) is connected with the pressure regulating valve (31), the air inlet of the pressure regulating valve (31) is connected with the gas source inlet, the air outlet of the pressure regulating valve (31) is connected with the air pressure control structure (4).

3. The apparatus for detecting air tightness of a pneumatic actuator according to claim 1, wherein The air pressure control structure (4) includes switch (41) and electromagnetic valve (42), the switch (41) is electrically connected with the electromagnetic valve (42), one end of the electromagnetic valve (42) is connected with the air outlet of the air pressure regulating structure (3), the other end of the electromagnetic valve (42) is connected with the air pressure detection structure (5).

4. The apparatus for detecting air tightness of a pneumatic actuator according to claim 1, wherein The air pressure detection structure (5) includes tee joint (52) and second pressure gauge (51), the second pressure gauge (51) is connected on one interface of the tee joint (52), the other two interfaces of the tee joint (52) are connected with the air outlet of the air pressure control structure (4) and gas source outlet respectively.

5. The apparatus for detecting air tightness of a pneumatic actuator according to claim 4, wherein The second pressure gauge (51) is digital pressure gauge.

6. The apparatus for detecting air tightness of a pneumatic actuator according to claim 1, wherein It further includes power module (2), the power module (2) is electrically connected with the air pressure control structure (4) and air pressure detection structure (5) respectively, and the air pressure control structure (4) and air pressure detection structure (5) are powered.

7. The air tightness detecting device of a pneumatic actuator according to claim 6, wherein The power module (2) includes power switch (21), power socket (22), mobile power supply (23) and voltage stabilizer (24), and the power switch (21), power socket (22) and voltage stabilizer (24) are connected with the mobile power supply (23) respectively.

8. The apparatus for detecting air tightness of a pneumatic actuator according to claim 1, wherein The top of the box (1) is provided with handle (11).

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