Leak test device for pneumatic pump testing and method of processing thereof

Abstract

This invention relates to a leak testing device and its processing method for pneumatic pump detection, belonging to the field of pneumatic pump technology. It includes a detection and control device with a fixing mechanism on one side. An operating mechanism is fixedly installed inside the detection and control device. A pneumatic pump is mounted on the upper end of the fixing mechanism. Detection mechanisms are inserted into both the output and input ports of the pneumatic pump. The fixing mechanism includes a detection platform. Two sets of symmetrically distributed electric slide rails are fixedly installed on the upper surface of the detection platform. An electric telescopic rod is fixedly installed on the upper side of the electric slide rails. A fixing body is fixedly installed at the end of the electric telescopic rod away from the electric slide rails. By setting up the detection mechanism, this invention can detect the internal components of the pneumatic pump during operation, and simultaneously determine which diaphragm inside the pneumatic pump is experiencing a problem. It also eliminates the need for pressurization and pressure holding steps, thus achieving accurate detection, precise detection positioning, high detection efficiency, and safe detection.

Description

Technical Field

[0001] This invention relates to the field of pneumatic pump technology, specifically to a leak testing device for detecting pneumatic pumps and its manufacturing method. Background Technology

[0002] A pneumatic pump is a positive displacement fluid transfer pump that uses compressed air as its power source. It relies on the reciprocating motion of a diaphragm or piston to change the volume of the chamber to achieve the intake and discharge of fluid.

[0003] The core and vulnerable component of a pneumatic pump is the diaphragm. During long-term reciprocating motion, the diaphragm is prone to aging and rupture, which can lead to leakage in the liquid circuit. This not only reduces pumping efficiency but also causes leakage of the transported liquid, resulting in safety accidents and environmental pollution. Therefore, pneumatic pumps need to be inspected regularly when they are put into production.

[0004] At the same time, the diaphragm also needs to be tested before the pneumatic pump leaves the factory to ensure the product is qualified.

[0005] However, existing testing technologies mostly employ static pressure holding testing, which has several drawbacks. First, static pressure holding testing can only detect when the pneumatic pump is not operating, while the actual operating state is the true state, thus resulting in inaccurate detection. Second, static pressure holding testing can only detect leaks, not pinpoint the specific diaphragm leaking. Third, static pressure holding testing requires a certain amount of time to maintain pressure, leading to long testing times and low efficiency. Fourth, static pressure holding testing requires pressurization, during which the pneumatic pump may shake, potentially causing components to fly off or even the pump body to rupture, posing a danger. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a leakage testing device and its processing method for pneumatic pump testing, which solves the problems of inaccurate detection, inaccurate detection positioning, low detection efficiency, and unsafe detection.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a leakage testing device for detecting pneumatic pumps, comprising a detection control device, a fixing mechanism on one side of the detection control device, an operating mechanism fixedly installed inside the detection control device, a pneumatic pump at the upper end of the fixing mechanism, and a detection mechanism inserted into both the output port and the input port of the pneumatic pump.

[0008] The fixing mechanism includes a testing platform, on the upper surface of which two sets of symmetrically distributed electric slide rails are fixedly installed. An electric telescopic rod is fixedly installed on the upper side of the electric slide rails, and a fixing body is fixedly installed on the end of the electric telescopic rod away from the electric slide rails.

[0009] The testing mechanism includes two symmetrically distributed fixed frames. A fixed running body is fixedly connected to the two fixed frames at their opposite ends. A fixed cylinder is fixedly installed at the upper end of the fixed running body, and a docking body is fixedly installed at the lower end of the fixed running body. Two symmetrically distributed inserts are fixedly installed inside the docking body, and an isolation plate is fixedly installed on the opposite sides of the two inserts.

[0010] Furthermore, a linear Hall distance sensor is fixedly installed on the inner wall of the fixed cylinder. There are two linear Hall distance sensors, which are symmetrically distributed. The inner wall of the fixed cylinder is fixedly connected to one end of the isolation plate, and the two linear Hall distance sensors are located on opposite sides of the isolation plate.

[0011] Furthermore, the interior of the fixed operating body is connected to the interior of the fixed frame, the upper half of the insert extends into the interior of the fixed operating body, and the lower half of the insert is inserted into the output port and input port of the pneumatic pump.

[0012] Furthermore, the lower end of the isolation plate is arc-shaped, and the lower end of the isolation plate is in close contact with the inner wall of the pneumatic pump.

[0013] Furthermore, a sliding block is slidably installed on the inner wall of the insert, and a spring and a magnet are fixedly installed on the upper side of the sliding block, with the spring sleeved on the outside of the magnet.

[0014] Furthermore, a fixing plate is fixedly installed on the upper end of the insert, and the end of the spring away from the sliding block is fixedly connected to one side surface of the fixing plate. A through hole is provided in the middle of the fixing plate, and the center point of the through hole is perpendicular to the center point of the spring and the center point of the magnet. The linear Hall distance sensor is vertically located on the upper side of the magnet.

[0015] Furthermore, a connecting hole is provided through the surface of the sliding block, and a semi-circular hole is provided through the edge of the sliding block.

[0016] Furthermore, the end of the fixed frame away from the fixed running body is engaged with one end of the pneumatic pump, and an air inlet is provided through the upper half of the fixed frame.

[0017] Furthermore, the operating mechanism includes an air pump and an exhaust pipe. The air pump output port is fixedly connected to an air supply pipe, which is fixedly connected to the pneumatic pump. The air pump is located inside the detection and control device, and one end of the exhaust pipe is fixedly connected to one side of the pneumatic pump.

[0018] The manufacturing method of a leak testing device for pneumatic pump testing includes the following steps:

[0019] Step 1: Pneumatic pump installation: Place the pneumatic pump on the test platform, move the electric slide rail, retract the electric telescopic rod, and the fixed body fits into the fixed feet of the pneumatic pump;

[0020] Step 2: Installation of the testing mechanism: Insert the insert into the pneumatic pump, ensure the docking body fits tightly against the inlet and outlet of the pneumatic pump, and fix one end of the mounting bracket to the pneumatic pump.

[0021] Step 3: Operation and Testing: The pneumatic pump runs, airflow enters the testing mechanism, the sliding block moves, the spring unfolds, and the magnet moves;

[0022] Step 4: Result determination: The linear Hall distance sensor detects the movement distance and transmits the movement distance to the detection and control device, which then compares the data.

[0023] Compared with the prior art, the present invention provides a leakage testing device and its processing method for pneumatic pump detection, which has the following beneficial effects:

[0024] 1. By setting up a detection mechanism, this invention can detect the internal components of a pneumatic pump during operation, and can also determine which diaphragm inside the pneumatic pump is malfunctioning, while eliminating the need for pressurization and pressure holding steps. This achieves the effects of accurate detection, precise detection positioning, high detection efficiency, and safe detection.

[0025] 2. By setting up a fixing mechanism, the present invention can fix the pneumatic pump, avoid the instability of the pneumatic pump during the testing process, reduce the risk of unsafe testing, and thus achieve the effect of safe testing.

[0026] 3. By using a combination of insert and isolation plate, this invention can isolate the inside of the pneumatic pump, enabling it to operate normally while also performing precise positioning and detection. At the same time, it eliminates the complex steps of pressurization and pressure holding, thus achieving the effects of accurate detection, precise detection positioning, high detection efficiency, and safe detection.

[0027] 4. By setting up a linear Hall distance sensor and a magnet, this invention can accurately determine the status of the pneumatic pump by measuring the movement distance of the magnet, while eliminating the complex steps of traditional detection, thus achieving the effects of accurate detection, precise detection positioning, high detection efficiency, and safe detection. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0030] Figure 3 This is a cross-sectional structural diagram of the detection and control device of the present invention;

[0031] Figure 4 This is a schematic diagram of the fixing mechanism structure of the present invention;

[0032] Figure 5 This is a schematic diagram of the pneumatic pump structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the electric slide rail structure of the present invention;

[0034] Figure 7 This is an enlarged schematic diagram of the structure at point A of the present invention;

[0035] Figure 8 This is a schematic diagram of the exhaust pipe structure of the present invention;

[0036] Figure 9 This is a schematic diagram of the fixing frame structure of the present invention;

[0037] Figure 10 This is an enlarged schematic diagram of the structure at point B of the present invention;

[0038] Figure 11 This is a schematic cross-sectional view of the fixed running body of the present invention;

[0039] Figure 12 This is a schematic diagram of the insert structure of the present invention;

[0040] Figure 13 This is an enlarged schematic diagram of the structure at point C in this invention;

[0041] Figure 14 This is a schematic diagram of the cross-sectional structure of the insert of the present invention;

[0042] Figure 15 This is an enlarged schematic diagram of the structure at point D in this invention;

[0043] Figure 16 This is a schematic diagram of the fixing plate structure of the present invention;

[0044] Figure 17 This is a flowchart illustrating the operation of the detection and control device of the present invention.

[0045] In the diagram: 1. Detection and control device;

[0046] 2. Fixing mechanism; 21. Testing table; 22. Electric slide rail; 23. Electric telescopic rod; 24. Fixing body;

[0047] 3. Pneumatic pump;

[0048] 4. Operating mechanism; 41. Air pump; 42. Air supply pipe; 43. Exhaust pipe;

[0049] 5. Detection mechanism; 51. Fixed cylinder; 510. Spring; 52. Fixed running body; 53. Fixed frame; 531. Air inlet; 54. Docking body; 55. Insert cylinder; 56. Isolation plate; 57. Fixed plate; 571. Connecting hole; 58. Linear Hall distance sensor; 581. Magnet; 59. Sliding block; 591. Connecting hole; 592. Semicircular hole. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only 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 are within the scope of protection of the present invention.

[0051] Please see Figures 1 to 17 The leak testing device for pneumatic pump detection in this embodiment includes a detection control device 1. A fixing mechanism 2 is provided on one side of the detection control device 1. An operating mechanism 4 is fixedly installed inside the detection control device 1. The operating mechanism 4 includes an air pump 41 and an exhaust pipe 43. One end of the exhaust pipe 43 is fixedly connected to one side of the pneumatic pump 3, and the exhaust pipe 43 is connected to the drive outlet of the pneumatic pump 3. The exhaust pipe 43 extends to one side of the fixing mechanism 2, thereby ensuring that the discharged gas will not cause turbulence interference to the gas near the inlet of the pneumatic pump 3, preventing inaccurate detection. Simultaneously, the exhaust pipe 43... The part is fixed to the fixing mechanism 2 by a fixing hoop, thereby ensuring that the vibration generated by the pneumatic pump 3 when it exhausts during the test will not cause the exhaust pipe 43 to move, reducing the probability of turbulence interference to the gas near the inlet of the pneumatic pump 3, and further ensuring the accuracy of the test. The air pump 41 is located inside the test control device 1, and one end of the air supply pipe 42 extends into the test control device 1. The air supply pipe 42 is fixedly connected to the output port of the air pump 41, and the air supply pipe 42 is fixedly connected to the pneumatic pump 3. The pneumatic pump 3 is provided at the upper end of the fixing mechanism 2, and the test mechanism 5 is inserted into both the output port and the inlet of the pneumatic pump 3.

[0052] The fixing mechanism 2 includes a testing platform 21. Two sets of symmetrically distributed electric slide rails 22 are fixedly installed on the upper surface of the testing platform 21. Each set has two electric slide rails 22. An electric telescopic rod 23 is fixedly installed on the upper side of the electric slide rails 22. A fixing body 24 is fixedly installed at the end of the electric telescopic rod 23 away from the electric slide rail 22. When the pneumatic pump 3 is placed on the testing platform 21, the electric slide rails 22 can be activated by the testing control device 1. The electric slide rails 22 drive the electric telescopic rod 23 and the fixing body 24 to move. The electric slide rails 22 drive the electric telescopic rod 23 into the fixing foot of the pneumatic pump 3. The electric telescopic rod 23 and the fixing body 24 form a T-shape. By controlling the electric telescopic rod... 23 retracts, and the fixed body 24 comes into close contact with the pneumatic pump 3, thereby completing the fixation of the pneumatic pump 3. A buffer pad made of rubber material is fixedly installed on the side of the fixed body 24 that contacts the pneumatic pump 3, thereby reducing the impact of the vibration generated by the pneumatic pump 3 on the fixing mechanism 2. The detection mechanism 5 includes two symmetrically distributed fixed frames 53. The end of the fixed frame 53 away from the fixed running body 52 is snapped with the end of the pneumatic pump 3. One end of the fixed frame 53 is in the shape of a clamp, and can be fixed to the pneumatic pump 3 by bolts. The upper half of the fixed frame 53 is provided with an air inlet 531. There are several air inlets 531, thereby ensuring sufficient air intake at the input port of the pneumatic pump 3.

[0053] Two fixed frames 53 are fixedly connected to a fixed running body 52 at opposite ends. The interior of the fixed running body 52 is connected to the interior of the fixed frames 53. A fixed cylinder 51 is fixedly installed on the upper end of the fixed running body 52. ​​The inner wall of the fixed cylinder 51 is fixedly connected to one end of the isolation plate 56. A linear Hall distance sensor 58 is fixedly installed on the inner wall of the fixed cylinder 51. The linear Hall distance sensor 58 is vertically located above the magnet 581. Before detection, the detection control device 1 pre-inputs a qualified reference value and names the linear Hall distance sensors 58. The linear Hall distance sensors 58 at the input port of the pneumatic pump 3 are named: Input 1 and Input 2. The linear Hall distance sensors 58 at the output port of the pneumatic pump 3 are named: Output 1 and Output 2. Input 1 corresponds to Output 1, and Input 2 corresponds to Output 2. When the test is qualified, the pre-test control device 1 will not alarm. When the test is unqualified, the pre-test control device 1 will alarm. This allows for precise positioning of the diaphragm of the pneumatic pump 3 and which diaphragm is being tested. When the magnet 581 moves, the linear Hall distance sensor 58 can detect the change in magnetic field strength and output a corresponding electrical signal to calculate the displacement distance. By comparing the displacement of the magnet 581 at input 1, input 2 and output 1, output 2 of the pneumatic pump 3, if the displacement of the magnet 581 does not change or the change value is within the allowable range, the pneumatic pump 3 is qualified. If the change value exceeds the allowable range, it is unqualified. The linear Hall distance sensor 58 is existing technology and will not be described in detail here. There are two linear Hall distance sensors 58, which are symmetrically distributed.

[0054] Two linear Hall distance sensors 58 are located on opposite sides of the isolation plate 56. The isolation plate 56 separates the two linear Hall distance sensors 58, giving each linear Hall distance sensor 58 its own independent operating space. A docking body 54 is fixedly installed at the lower end of the fixed operating body 52. ​​Two symmetrically distributed inserts 55 are fixedly installed inside the docking body 54. A fixing plate 57 is fixedly installed at the upper end of the inserts 55. A through hole 571 is opened in the middle of the fixing plate 57. The center point of the through hole 571 is perpendicular to the center point of the spring 510 and the center point of the magnet 581. A sliding block 59 is slidably installed on the inner wall of the insert 55.

[0055] A semi-circular hole 592 is provided through the edge of the sliding block 59 to ensure stable sliding of the sliding block 59 and to ensure stable air intake and exhaust volume. A connecting hole 591 is provided through the surface of the sliding block 59. A spring 510 and a magnet 581 are fixedly installed on the upper side of the sliding block 59. The end of the spring 510 away from the sliding block 59 is fixedly connected to one side surface of the fixed plate 57. The spring 510 is sleeved on the outside of the magnet 581. The upper half of the insert 55 extends into the interior of the fixed running body 52. ​​The lower half of the insert 55 is inserted into the output port and input port of the pneumatic pump 3. The lower half of the insert 55 is inserted into one output port and one input port of the pneumatic pump 3, thereby ensuring that the gas from the output port and input port of the pneumatic pump 3 must be discharged through the insert 55, thus ensuring the accuracy of the detection.

[0056] Two inserts 55 are fixedly installed with isolation plates 56 on opposite sides. The lower end of the isolation plate 56 is arc-shaped and made of rubber. The lower end of the isolation plate 56 is in close contact with the inner wall of the pneumatic pump 3. The lower end of the isolation plate 56 is in close contact with the inner wall of the intersection of the two output ports and the intersection of the two input ports inside the pneumatic pump 3, thereby isolating the two output ports and the two input ports of the pneumatic pump 3, ensuring the accurate flow of air, and further ensuring the accuracy of the detection.

[0057] Except for the linear Hall distance sensor 58 and the magnet 581, the detection mechanism 5 is made of 304 stainless steel, which avoids affecting the operation of the linear Hall distance sensor 58 and the magnet 581. At the same time, since the detection mechanism 5 is made of 304 stainless steel, its thickness will increase the distance between the linear Hall distance sensor 58, the magnet 581 and the pneumatic pump 3. Therefore, the pneumatic pump 3 will not affect the operation of the linear Hall distance sensor 58 and the magnet 581.

[0058] In this embodiment, the manufacturing method of the leakage testing device for pneumatic pump detection includes the following steps:

[0059] Step 1: Pneumatic pump installation: The pneumatic pump 3 is placed on the test platform 21, the electric slide rail 22 moves, the electric telescopic rod 23 retracts, and the fixing body 24 is in contact with the fixing feet of the pneumatic pump 3.

[0060] Step 2: Installation of the testing mechanism: Insert the insert 55 into the pneumatic pump 3, and make the docking body 54 fit tightly with the inlet and outlet of the pneumatic pump 3. Fix one end of the fixing bracket 53 is fixedly installed with the pneumatic pump 3.

[0061] Step 3: Operation and testing: The pneumatic pump 3 is running, the airflow enters the detection mechanism 5, the sliding block 59 moves, the spring 510 unfolds, and the magnet 581 moves;

[0062] Step 4: Result determination: The linear Hall distance sensor 58 detects the moving distance and transmits the moving distance to the detection control device 1, which then performs data comparison.

[0063] The working principle of the above embodiment is as follows: When testing the pneumatic pump 3, the pneumatic pump 3 is first placed on the testing platform 21. The testing control device 1 controls the electric slide rail 22 on the testing platform 21 to start running. The electric slide rail 22 can drive the electric telescopic rod 23 and the fixed body 24 to move. When it moves to the designated position, the testing control device 1 controls the electric telescopic rod 23 to retract. At this time, the fixed body 24 can make close contact with the fixed foot of the pneumatic pump 3, thereby ensuring the stable operation of the pneumatic pump 3. At the same time, the insert 55 on the testing mechanism 5 is aligned with the inlet and outlet of the pneumatic pump 3, and the insert 55 is inserted into it. At the same time, one end of the fixed frame 53 is fixed to the pneumatic pump 3 with a fixing hoop. The fixing hoop can make the isolation plate 56 fit tightly with the inside of the pneumatic pump 3, thereby ensuring the sealing effect of the isolation plate 56. At this time, the testing control device 1 starts the air pump 41 inside it, and the gas is supplied through the air supply pipe. 42 is input into the pneumatic pump 3. The operation of the pneumatic pump 3 enables its input port to draw in air. When the pneumatic pump 3 draws in air, the gas enters the fixed running body 52 through the air inlet 531. At the same time, the fixed running body 52 is set to store gas in advance. The gas enters the insert 55 through the connecting hole 571 and moves downward through the connecting hole 591. At the same time, the airflow is drawn by the pneumatic pump 3. Therefore, the airflow cannot pass through the connecting hole 591 for a moment. At this time, part of the airflow pushes the sliding block 59 to move, the spring 510 unfolds, and the magnet 581 moves. At this time, the linear Hall distance sensor 58 detects the moving distance of the magnet 581 and transmits the movement data to the detection control device 1. When the pneumatic pump 3 starts to exhaust, the above steps are repeated. The linear Hall distance sensor 58 can upload the movement data to the detection control device 1 again. By comparing the data, the detection control device 1 can determine whether the pneumatic pump 3 is qualified.

[0064] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A leak testing device for detecting pneumatic pumps, comprising a detection control device (1), characterized in that: The detection control device (1) is provided with a fixing mechanism (2) on one side, and a running mechanism (4) is fixedly installed inside the detection control device (1). A pneumatic pump (3) is provided at the upper end of the fixing mechanism (2), and a detection mechanism (5) is plugged into both the output port and the input port of the pneumatic pump (3). The fixing mechanism (2) includes a testing platform (21). Two sets of symmetrically distributed electric slide rails (22) are fixedly installed on the upper surface of the testing platform (21). An electric telescopic rod (23) is fixedly installed on the upper side of the electric slide rail (22). A fixing body (24) is fixedly installed at the end of the electric telescopic rod (23) away from the electric slide rail (22). The testing mechanism (5) includes two symmetrically distributed fixed frames (53). The two fixed frames (53) are fixedly connected to a fixed running body (52) at opposite ends. A fixed cylinder (51) is fixedly installed at the upper end of the fixed running body (52). A docking body (54) is fixedly installed at the lower end of the fixed running body (52). Two symmetrically distributed inserts (55) are fixedly installed inside the docking body (54). An isolation plate (56) is fixedly installed on opposite sides of the two inserts (55).

2. The leakage testing device for pneumatic pump detection according to claim 1, characterized in that: A linear Hall distance sensor (58) is fixedly installed on the inner wall of the fixed cylinder (51). There are two linear Hall distance sensors (58) and they are symmetrically distributed. The inner wall of the fixed cylinder (51) is fixedly connected to one end of the isolation plate (56). The two linear Hall distance sensors (58) are located on opposite sides of the isolation plate (56).

3. The leakage testing device for pneumatic pump detection according to claim 1, characterized in that: The interior of the fixed operating body (52) is connected to the interior of the fixed frame (53). The upper half of the insert (55) extends into the interior of the fixed operating body (52), and the lower half of the insert (55) is inserted into the output port and input port of the pneumatic pump (3).

4. The leakage testing device for pneumatic pump detection according to claim 3, characterized in that: The lower end of the isolation plate (56) is arc-shaped, and the lower end of the isolation plate (56) is tightly attached to the inner wall of the pneumatic pump (3).

5. The leakage testing device for pneumatic pump detection according to claim 2, characterized in that: A sliding block (59) is slidably installed on the inner wall of the insert (55). A spring (510) and a magnet (581) are fixedly installed on the upper side of the sliding block (59). The spring (510) is sleeved on the outside of the magnet (581).

6. The leakage testing device for pneumatic pump detection according to claim 5, characterized in that: A fixing plate (57) is fixedly installed on the upper end of the insert (55). The end of the spring (510) away from the sliding block (59) is fixedly connected to one side surface of the fixing plate (57). A through hole (571) is provided in the middle of the fixing plate (57). The center point of the through hole (571) is perpendicular to the center point of the spring (510) and the center point of the magnet (581). The linear Hall distance sensor (58) is vertically located on the upper side of the magnet (581).

7. The leakage testing device for pneumatic pump detection according to claim 6, characterized in that: The sliding block (59) has a through-hole (591) on its surface and a semi-circular hole (592) on its edge.

8. The leakage testing device for pneumatic pump detection according to claim 4, characterized in that: The fixed frame (53) is connected to one end of the pneumatic pump (3) at the end away from the fixed running body (52), and the upper half of the fixed frame (53) is provided with an air inlet (531).

9. The leakage testing device for pneumatic pump detection according to claim 8, characterized in that: The operating mechanism (4) includes an air pump (41) and an exhaust pipe (43). The air pump (41) has an air supply pipe (42) fixedly connected to its output port. The air supply pipe (42) is fixedly connected to the pneumatic pump (3). The air pump (41) is located inside the detection and control device (1). One end of the exhaust pipe (43) is fixedly connected to one side of the pneumatic pump (3).

10. A method for manufacturing a leak testing device for pneumatic pump testing, comprising the leak testing device for pneumatic pump testing as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Pneumatic pump installation: The pneumatic pump (3) is placed on the test platform (21), the electric slide rail (22) moves, the electric telescopic rod (23) retracts, and the fixed body (24) fits against the fixed foot of the pneumatic pump (3); Step 2: Installation of the testing mechanism: Insert the insert (55) into the pneumatic pump (3), and fit the docking body (54) tightly with the inlet and outlet of the pneumatic pump (3). Fix one end of the fixing bracket (53) is fixedly installed with the pneumatic pump (3). Step 3: Operation test: The pneumatic pump (3) runs, the airflow enters the detection mechanism (5), the sliding block (59) moves, the spring (510) unfolds, and the magnet (581) moves; Step 4: Result determination: The linear Hall distance sensor (58) detects the moving distance and transmits the moving distance to the detection control device (1). The detection control device (1) performs data comparison.

Images