Pressure sensor performance test tool

Abstract

The utility model relates to the technical field of pressure sensor testing, and discloses a pressure sensor performance testing tool which comprises a testing base, a pressure sensor is arranged on one side of the testing base, and a detection assembly for detecting the performance of the pressure sensor is arranged on the top of the testing base. The top of the detection assembly is provided with an adjusting assembly capable of enabling the detection assembly to detect the pressure sensor in different modes; through the arrangement of the detection assembly, the adjusting assembly and the driving assembly, a servo motor in the driving assembly can rotate forwards and backwards, a rotating column extrudes a pushing block in the moving process through forward rotation so as to cooperate with the adjusting assembly to perform pulse type downward pressing on the detection assembly, and the rotating column pushes the pushing block through backward rotation of the servo motor so as to perform pulse type downward pressing on the detection assembly. Therefore, the adjustment assembly is matched to continuously press the detection assembly, and the performance detection of the pressure sensor under different conditions can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure sensor testing, in particular to a pressure sensor performance testing tool. Background Art

[0002] A pressure sensor is a device or apparatus that can sense pressure signals and convert them into usable output electrical signals according to certain rules. A pressure sensor is usually composed of a pressure sensitive element and a signal processing unit. According to different test pressure types, pressure sensors can be divided into gauge pressure sensors, differential pressure sensors and absolute pressure sensors. Pressure sensors are the most commonly used sensors in industrial practice. They are widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemical, oil wells, electric power, ships, machine tools, pipelines and many other industries. Because pressure sensors are widely used, performance testing of pressure sensors is also necessary.

[0003] For example, a pressure sensor testing tool is disclosed in the Chinese utility model patent with the announcement number CN210375522U. Although the above-mentioned prior art is connected through air holes and then connected with the air holes located on the opposite side walls of the module plate to form two air grooves, the device can detect multiple sensors after ventilation, thereby improving the detection efficiency. However, it can only detect whether the pressure sensor can be used normally, but cannot test the performance of the pressure sensor. When encountering special circumstances, such as frequent fluctuations in values ​​or excessive or insufficient pressure, when these circumstances occur, it is impossible to determine whether the pressure sensor that has only been tested through normal use can work normally or whether the performance can meet the requirements. Therefore, it is necessary to design a performance testing tool that can test the pressure sensor in different situations. Utility Model Content

[0004] In order to solve the technical problem that the current test can only detect whether the pressure sensor can be used normally but cannot test whether the performance of the pressure sensor meets the standards under different situations, the utility model provides a pressure sensor performance test tool.

[0005] The utility model is implemented by the following technical scheme: a pressure sensor performance testing tool, including a test base, a pressure sensor is provided on one side of the test base, a detection component for performing performance detection on the pressure sensor is provided on the top of the test base, an adjustment component is provided on the top of the detection component to enable the detection component to detect the pressure sensor in different ways, and a driving component is provided on the top of the adjustment component to drive the adjustment component to press down the detection component.

[0006] Through the above technical solution, when testing the pressure sensor, the driving component is started to allow the adjustment component to squeeze the detection component as needed, thereby achieving performance testing of the pressure sensor under different conditions.

[0007] As a further improvement of the above solution, the detection assembly includes a detection bag arranged on one side of the test base and a lower pressure plate arranged on one side of the detection bag, and one side of the detection bag is connected to the pressure sensor.

[0008] Through the above technical solution, when the detection bag is squeezed, it will be detected by the pressure sensor.

[0009] As a further improvement of the above solution, a test top plate is provided on one side of the lower pressure plate, support columns are fixedly installed at the four corners of the test base, and one end of each of the support columns passes through the lower pressure plate and the test top plate and is fixedly installed.

[0010] Through the above technical solution, the downward pressure of the lower pressure plate will produce a squeezing effect on the detection bag, thereby allowing the pressure sensor to perform detection.

[0011] As a further improvement of the above scheme, the adjustment assembly includes a threaded column fixedly installed on one side of the lower pressure plate and a rotating sleeve threadedly mounted on the threaded column, one side of the rotating sleeve is provided with a plurality of sliding grooves, wherein two of the sliding grooves are slidably installed with sliding blocks inside, and one side of the two sliding blocks is fixedly installed with a pushing block, and the pushing block is arranged in a triangular shape.

[0012] Through the above technical solution, the rotating sleeve rotates, which causes the threaded column to move, thereby pushing the lower pressure plate to press down the detection bag.

[0013] As a further improvement of the above solution, the driving assembly includes a servo motor arranged on one side of the test top plate and a driving rod fixedly installed on the output end of the servo motor, and the outer sleeve of the servo motor is provided with a protective shell fixedly installed on the test top plate.

[0014] Through the above technical solution, both forward and reverse rotation of the servo motor can have different pressing effects on the lower pressing plate.

[0015] As a further improvement of the above solution, one end of the driving rod passes through the test top plate and extends to one side of the rotating sleeve, and a plurality of connecting rods are fixedly mounted on one end of the driving rod, and a rotating column is rotatably sleeved on each of the plurality of connecting rods.

[0016] Through the above technical solution, the rotating column and the pushing block are used in conjunction with each other to achieve a pulse-like downward pressing effect on the downward pressing plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model sets a detection component, an adjustment component and a driving component. The servo motor in the driving component can rotate forward and reverse. The forward rotation will make the rotating column squeeze the pushing block during the movement, so as to cooperate with the adjustment component to press the detection component downward in a pulse manner, and the reverse rotation of the servo motor will make the rotating column push the pushing block, so as to cooperate with the adjustment component to continuously press the detection component downward. This setting can perform performance detection on the pressure sensor in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model having a detection component;

[0021] Figure 3 It is a structural schematic diagram of the utility model with an adjustment component.

[0022] Description of main symbols:

[0023] 1. Test base; 2. Pressure sensor; 301. Test bag; 302. Lower pressure plate; 401. Threaded column; 402. Rotating sleeve; 501. Servo motor; 502. Drive rod; 6. Test top plate; 7. Support column; 8. Sliding block; 9. Pushing block; 10. Connecting rod; 11. Rotating column. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0025] Please combine Figure 1-Figure 3 A pressure sensor performance testing tool of the present embodiment includes a test base 1, a pressure sensor 2 is provided on one side of the test base 1, a detection component for performing performance detection on the pressure sensor 2 is provided on the top of the test base 1, an adjustment component is provided on the top of the detection component for enabling the detection component to detect the pressure sensor 2 in different ways, and a driving component is provided on the top of the adjustment component for driving the adjustment component to press down the detection component.

[0026] Combination Figure 1 and Figure 2The detection component includes a detection bag 301 arranged on one side of the test base 1 and a lower pressure plate 302 arranged on one side of the detection bag 301. One side of the detection bag 301 is connected to the pressure sensor 2, and one side of the lower pressure plate 302 is provided with a test top plate 6. Support columns 7 are fixedly installed at the four corners of the test base 1, and one end of multiple support columns 7 passes through the lower pressure plate 302 and is fixedly installed with the test top plate 6. When the lower pressure plate 302 is pressed down, it will produce a squeezing effect on the detection bag 301, thereby allowing the pressure sensor 2 to perform detection.

[0027] Combination Figure 2 and Figure 3 The adjustment component includes a threaded column 401 fixedly mounted on one side of the lower pressure plate 302 and a rotating sleeve 402 threadedly mounted on the threaded column 401. A plurality of sliding grooves are provided on one side of the rotating sleeve 402, wherein sliding blocks 8 are slidably mounted inside two sliding grooves, and a pushing block 9 is fixedly mounted on one side of the two sliding blocks 8. The pushing block 9 is arranged in a triangular shape. When the rotating sleeve 402 rotates, the threaded column 401 will move, thereby pushing the lower pressure plate 302 to press down the detection bag 301.

[0028] Combination Figure 2 and Figure 3 The driving assembly includes a servo motor 501 arranged on one side of the test top plate 6 and a driving rod 502 fixedly installed on the output end of the servo motor 501. The outer sleeve of the servo motor 501 is provided with a protective shell fixedly installed with the test top plate 6. One end of the driving rod 502 penetrates the test top plate 6 and extends to one side of the rotating sleeve 402. A plurality of connecting rods 10 are fixedly installed on one end of the driving rod 502. A rotating column 11 is rotatably sleeved on each of the plurality of connecting rods 10. The forward and reverse rotation of the servo motor 501 can have different downward pressing effects on the lower pressure plate 302.

[0029] The implementation principle of a pressure sensor performance test tool in the embodiment of the present application is as follows: connect the pressure sensor 2 to be tested to the detection bag 301, start the servo motor 501, and the forward rotation of the servo motor 501 will cause the connecting rod 10 to drive the rotating column 11 to roll on the rotating sleeve 402. During the rolling process, it will contact the inclined surface of the pushing block 9, thereby pressing the pushing block 9 downward. After the pushing block 9 is pressed downward, the lower pressure plate 302 will squeeze the detection bag 301. When the rotating column 11 is removed from the pushing block 9, the detection bag 301 is closed and will not leak, just like the tire pressure inside a car tire, so it will push the lower pressure plate 302 upward. The number of push blocks 9 can be added and reduced by oneself, so as to realize the pulse performance detection of pressure sensor 2. When servo motor 501 reverses, the rotating column 11 will contact the vertical surface of pushing block 9, so as to push pushing block 9 to move together. Pushing block 9 will make the rotating sleeve 402 rotate. Since the rotating sleeve 402 and the threaded column 401 are threaded sleeves, the rotation of the rotating sleeve 402 will make the threaded column 401 move, so as to push the lower pressure plate 302 to press down. This time the downward pressure is no longer a pulse-type downward pressure, but the lower pressure plate 302 is slowly lowered, so as to perform large-value performance detection on pressure sensor 2.

[0030] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A pressure sensor performance test tool, comprising a test base (1), a pressure sensor (2) being provided on one side of the test base (1), characterized in that: A detection component for performing performance detection on the pressure sensor (2) is provided on the top of the test base (1); an adjustment component enabling the detection component to detect the pressure sensor (2) in different ways is provided on the top of the detection component; and a driving component for driving the adjustment component to press down the detection component is provided on the top of the adjustment component.

2. A pressure sensor performance testing tool as claimed in claim 1, characterized in that: The detection assembly comprises a detection bag (301) arranged on one side of the test base (1) and a lower pressure plate (302) arranged on one side of the detection bag (301); one side of the detection bag (301) is connected to a pressure sensor (2).

3. A pressure sensor performance testing tool as claimed in claim 2, characterized in that: A test top plate (6) is provided on one side of the lower pressure plate (302), and support columns (7) are fixedly installed at the four corners of the test base (1), and one end of each of the support columns (7) passes through the lower pressure plate (302) and the test top plate (6) and is fixedly installed.

4. A pressure sensor performance testing tool as claimed in claim 2, characterized in that: The adjustment assembly comprises a threaded column (401) fixedly mounted on one side of the lower pressure plate (302) and a rotating sleeve (402) threadedly mounted on the threaded column (401), a plurality of sliding grooves being provided on one side of the rotating sleeve (402), wherein sliding blocks (8) are slidably mounted inside two of the sliding grooves, and a pushing block (9) is fixedly mounted on one side of the two sliding blocks (8), and the pushing block (9) is arranged in a triangular shape.

5. A pressure sensor performance testing tool as claimed in claim 2, characterized in that: The driving assembly comprises a servo motor (501) arranged on one side of a test top plate (6) and a driving rod (502) fixedly mounted on an output end of the servo motor (501); the servo motor (501) is externally sheathed with a protective shell fixedly mounted on the test top plate (6).

6. A pressure sensor performance testing tool as claimed in claim 5, characterized in that: One end of the driving rod (502) passes through the test top plate (6) and extends to one side of the rotating sleeve (402). A plurality of connecting rods (10) are fixedly mounted on one end of the driving rod (502), and a rotating column (11) is rotatably sleeved on each of the plurality of connecting rods (10).

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