Pressure detector testing device

Abstract

The utility model relates to the technical field of pressure detectors, in particular to a pressure detector testing device, which comprises a bearing part, a pressure applying assembly and a processor, and is characterized in that the bearing part is provided with a bearing surface, and the bearing surface is used for placing a to-be-tested pressure detector; the pressure applying assembly is arranged above the bearing surface, and the pressure applying assembly can apply pressure to the to-be-detected pressure detector according to a preset frequency; the processor is electrically connected with the pressure applying assembly and the to-be-detected pressure detector to compare the preset frequency with the frequency of the pressure collected by the to-be-detected pressure detector so as to judge whether the precision of the to-be-detected pressure detector is within the preset range or not, and the data collection accuracy of the pressure detector can be detected.

Description

Technical Field

[0001] This application relates to the field of pressure detector technology, and in particular to a pressure detector testing device. Background Technology

[0002] The pressure detector technology field primarily focuses on the research and development and production of devices and systems capable of accurately measuring pressure signals. Pressure detectors are widely used in numerous fields such as industrial automation, aerospace, automotive, medical, and meteorology.

[0003] The accuracy of pressure detector data acquisition directly affects the reliability of its measurement results and the effectiveness of its application. In many practical applications, accurate pressure data is crucial for the normal operation of the system, product quality control, and safety assurance. For example, pressure detectors are used in mattresses. The mattress can use the pressure detector to detect the pressure exerted on the mattress by the user's breathing to determine the user's sleep state, and subsequently, the user's health status. If the pressure detector has a large detection error, it will directly affect the mattress's accurate detection of the user's sleep state, making it difficult to determine the user's sleep status and thus impacting the user experience. Utility Model Content

[0004] This application discloses a pressure detector testing device that can detect the data acquisition accuracy of the pressure detector.

[0005] To achieve the above objectives, this application discloses a pressure detector testing device, which includes:

[0006] A carrier component having a bearing surface for placing a pressure detector to be measured;

[0007] A pressure-applying component is disposed above the bearing surface, and the pressure-applying component is capable of applying pressure to the pressure detector under test at a preset frequency;

[0008] The processor is electrically connected to the pressure application component and the pressure detector under test to compare the preset frequency with the frequency of the pressure collected by the pressure detector under test, thereby determining whether the accuracy of the pressure detector under test is within the preset range.

[0009] As an optional implementation, the pressure application component includes an airbag located above the carrier, the airbag being able to apply pressure to the pressure detector under test when inflated.

[0010] As an optional implementation, the pressure detector testing device further includes an airbag control component connected to the airbag, which is capable of controlling the inflation and deflation of the airbag according to the preset frequency.

[0011] As an optional implementation, the pressure detector testing device further includes a first pressure plate and a second pressure plate, the first pressure plate, the second pressure plate and the support member are arranged sequentially at intervals, the first pressure plate and the second pressure plate are both parallel to the support surface, the first pressure plate is connected to the second pressure plate, and the airbag is disposed between the first pressure plate and the second pressure plate. When the airbag is inflated, it enables the second pressure plate to apply pressure to the pressure detector under test.

[0012] As an optional implementation, the second pressure plate is a deformable pressure plate.

[0013] As an optional implementation, the lower surface of the second pressure plate is provided with a buffer pad, and the second pressure plate applies pressure to the pressure detector under test through the buffer pad.

[0014] As an optional implementation, when the airbag is in the deflated state, the distance between the first pressure plate and the second pressure plate is equal to the thickness of the airbag.

[0015] As an optional implementation, the bearing surface has a placement position, the pressure detector to be tested is located at the placement position, and the bearing is provided with a limiting member, which is used to limit the pressure detector to be tested to the placement position.

[0016] As an optional implementation, the limiting member includes a plurality of such limiting members, which are spaced apart around the placement position.

[0017] As an optional implementation, the pressure detector testing device further includes a connecting plate and a handle. The connecting plate is disposed on the side of the first pressure plate away from the airbag and is spaced apart from the first pressure plate. The connecting plate is connected to the second pressure plate. The handle is connected to the carrier and the connecting plate respectively. When the handle is raised, it can drive the second pressure plate, the first pressure plate, the airbag and the connecting plate to move upward as a whole, so as to increase the gap between the second pressure plate and the carrier surface. When the handle is lowered, it can drive the second pressure plate, the first pressure plate, the airbag and the connecting plate to move downward as a whole, so as to decrease the gap between the second pressure plate and the carrier surface.

[0018] Compared with the prior art, the beneficial effects of this application are:

[0019] The pressure detector testing device provided in this embodiment, in this particular embodiment, when testing the pressure detector under test, first places the pressure detector under test on a supporting surface, then the pressure applying component applies pressure to the pressure detector under test at a preset frequency. The pressure detector under test senses the frequency signal of the pressure and converts this signal into an electrical signal. The processing unit receives the electrical signal and compares the frequency of the electrical signal with the preset frequency, thereby determining whether the accuracy of the pressure detector under test is within the preset range. It can be seen that by setting the pressure applying component and the processing unit, the accuracy of the pressure detector under test placed on the supporting surface can be tested, thereby accurately determining whether the pressure detector under test is a qualified product. When a pressure sensor is applied to a mattress to detect human respiratory rate, testing whether the pressure detector under test is qualified ensures that the mattress with the pressure detector accurately detects human respiratory rate, thereby accurately determining the user's sleep state and health status. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the pressure detector testing device disclosed in an embodiment of this application from a first-view perspective.

[0022] Figure 2 This is a schematic diagram of the pressure detector testing device disclosed in an embodiment of this application from a second-view perspective.

[0023] Figure 3 This is an exploded view of the pressure detector testing device disclosed in an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the pressure detector, which is a piezoelectric ceramic sensor, disclosed in an embodiment of this application.

[0025] Figure 5 This is a schematic diagram of the structure of the carrier and limiting member disclosed in the embodiments of this application;

[0026] Figure 6 This is a schematic diagram of the handle body in the first position as disclosed in an embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the handle body in the second position as disclosed in an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 100-Pressure detector testing device; 1-Bearing component; 11-Bearing surface; 2-Pressure application component; 21-Airbag; 22-Airbag control component; 3-First pressure plate; 4-Second pressure plate; 41-Buffer pad; 5-Limiting component; 6-Connecting plate; 7-Handle; 71-Handle body; 72-Connecting part; 73-Rotating mating part; 74-Straight pressure rod; 8-Fixed bracket; 81-Bracket body; 82-Sleeve; 9-Pressure detector to be tested. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0032] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0033] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0034] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0035] The pressure detector technology field primarily focuses on the research and development and production of devices and systems capable of accurately measuring pressure signals. Pressure detectors are widely used in numerous fields such as industrial automation, aerospace, automotive, medical, and meteorology.

[0036] The accuracy of pressure detector data acquisition directly affects the reliability of its measurement results and the effectiveness of its application. In many practical applications, accurate pressure data is crucial for the normal operation of the system, product quality control, and safety assurance. For example, pressure detectors are used in mattresses. The mattress can use the pressure detector to detect the pressure exerted on the mattress by the user's breathing to determine the user's sleep state, and subsequently, the user's health status. If the pressure detector has a large detection error, it will directly affect the mattress's accurate detection of the user's sleep state, making it difficult to determine the user's sleep status and thus impacting the user experience.

[0037] Among them, the pressure detector can be a chip or chip module with pressure sensing function, a piezoelectric sensor, or other instrument or device that senses pressure to achieve other functions.

[0038] Based on this, this application discloses a pressure detector testing device that can test whether the data acquisition accuracy of the pressure detector is within the normal range.

[0039] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0040] Please see Figures 1 to 3 , Figure 1 This is a first-view structural schematic diagram of the pressure detector testing device 100 disclosed in an embodiment of this application. Figure 2 This is a schematic diagram of the pressure detector testing device 100 disclosed in an embodiment of this application from a second-view perspective. Figure 3 This is an exploded view of the pressure detector testing device 100 disclosed in an embodiment of this application. The embodiment of this application discloses a pressure detector testing device 100, which includes a support member 1, a pressure application component 2, and a processor (not shown in the figure). The support member 1 has a support surface 11, which is a relatively flat plane parallel to the horizontal plane, used to place the pressure detector 9 to be tested. The pressure application component 2 is disposed above the support surface 11 and can apply pressure to the pressure detector 9 at a preset frequency. The processor is electrically connected to the pressure application component 2 and the pressure detector 9 to compare the preset frequency with the frequency of the pressure collected by the pressure detector 9, thereby determining whether the accuracy of the pressure detector 9 is within a preset range.

[0041] The support component 1 has a bearing surface 11, which is specifically designed to place the pressure detector 9 under test. This design provides a stable placement platform for the pressure detector, ensuring that the position of the pressure detector 9 under test remains relatively fixed during the test, and reducing measurement errors caused by position changes.

[0042] The pressure application component 2 can apply pressure to the pressure detector 9 under test at a preset frequency. The preset frequency can be set according to different test requirements to simulate pressure changes under different working conditions. The processor is electrically connected to the pressure application component 2 and the pressure detector 9 under test. By comparing the preset frequency with the frequency of the pressure collected by the pressure detector 9 under test, it can intuitively determine whether the accuracy of the pressure detector 9 under test is within the preset range, ensuring that the pressure detector testing device 100 can accurately determine the performance of the pressure detector 9 under test.

[0043] The pressure detector, placed on a mattress, detects the subtle impact force generated when the heart pumps blood. It then detects the breathing rate of the person lying on the mattress by sensing the frequency of this impact. Since some pressure detectors may be defective, this device uses a pressure detector under test to assess its accuracy. For example, in this embodiment, the preset frequency can be set to the human breathing rate. The frequency of the pressure collected by the pressure detector 9 is the frequency of the impact force. The pressure detector 9 converts the pressure frequency signal into an electrical signal frequency, which is then transmitted to the processor. The processor compares the preset frequency with the collected electrical signal frequency to determine if the electrical signal frequency collected by the pressure detector 9 is within a preset range, thus assessing the accuracy of the pressure detector 9. If the electrical signal frequency received by the processor is within the preset range, the pressure detector 9 is a qualified product that functions normally; otherwise, it is a faulty product, a defective product that can be directly destroyed or reprocessed.

[0044] When testing the pressure detector 9, it is first placed on a supporting surface. Then, the pressure application component applies pressure to the pressure detector at a preset frequency. The pressure detector senses the frequency signal of the pressure and converts it into an electrical signal. The processing unit receives the electrical signal and compares its frequency with the preset frequency to determine whether the accuracy of the pressure detector is within the preset range. Therefore, by setting the pressure application component and the processing unit, the accuracy of the pressure detector placed on the supporting surface can be tested, thus accurately determining whether the pressure detector is a qualified product. When a pressure sensor is applied to a mattress to detect human respiratory rate, testing the pressure detector ensures that the mattress with the pressure detector accurately detects human respiratory rate, thereby accurately determining the user's sleep and health status.

[0045] It should be noted that the processor can be any type of processor, such as a microcontroller or embedded processor, capable of processing the frequency of the electrical signal generated by the pressure detector and comparing the preset frequency of the pressure application component 2 with the frequency of the electrical signal. This embodiment does not limit this.

[0046] It should also be noted that the pressure application component 2 can be an airbag assembly, cylinder assembly, or other device capable of applying pressure, and this embodiment does not limit it.

[0047] As an optional implementation method, combined with Figures 1 to 3 The pressure application component 2 includes an airbag 21, which is located above the support member 1. When inflated, the airbag 21 can apply pressure to the pressure detector 9 under test.

[0048] The airbag 21 is a flexible structure that, when inflated and in contact with the pressure detector 9 under test, adaptively deforms according to the surface shape of the pressure detector. This results in a larger contact area and more uniform pressure distribution between the airbag 21 and the pressure detector, preventing damage to the pressure detector due to excessive local pressure. It also more accurately simulates the pressure environment in actual use, thereby improving the accuracy of the test results. Compared to some rigid pressure-applying components, the airbag 21 does not cause stress concentration on the surface of the pressure detector.

[0049] By controlling the inflation of the airbag 21, the pressure applied to the pressure detector can be easily adjusted. The air pressure inside the airbag 21 can be precisely adjusted according to different testing requirements, thus achieving precise pressure control. This allows the testing device to adapt to the testing requirements of different types and specifications of pressure detectors, improving the device's versatility and applicability.

[0050] The airbag 21 has a relatively simple structure, requiring no complex mechanical transmission devices or high-precision machining processes. This not only reduces the manufacturing difficulty and cost of the testing device but also decreases repair and maintenance costs due to component failures. The airbag 21 has a certain cushioning performance, absorbing some of the impact force during pressure application, reducing the risk of impact and damage to the pressure detector, effectively protecting the device under test and minimizing losses during testing. Furthermore, compared to some mechanical pressure application components 2, the airbag 21 does not produce sharp edges or moving parts, thus avoiding the risk of mechanical injury to operators during testing and improving the safety of the testing process.

[0051] In some embodiments, combined with Figures 1 to 3 The pressure detector testing device 100 also includes an airbag control component 22, which is connected to the airbag 21. The airbag control component 22 can control the inflation and deflation of the airbag 21 according to a preset frequency.

[0052] The airbag control component 22 controls the inflation and deflation of the airbag 21 according to a preset frequency, which can simulate pressure changes at various frequencies. Different types of pressure detectors need to withstand different pressure change frequencies in different application scenarios. The airbag control component 22 can flexibly adjust the preset frequency according to specific test requirements, which makes the test device highly versatile and can meet the test requirements of various pressure detectors.

[0053] For example, the pressure detector is applied to a mattress. When testing the pressure detector 9 under test, the airbag control component 22 can set the human breathing frequency to a preset frequency. The airbag control component 22 controls the airbag 21 to inflate and deflate according to the human breathing frequency. In this way, it is possible to more accurately detect whether the pressure detector 9 under test can work normally in the working scenario, so as to ensure accurate detection of the user's sleep state and health state.

[0054] The airbag control unit 22 enables automated control of the pressure application process, eliminating the need for manual operation to control the inflation and deflation of the airbag 21. This not only improves testing efficiency but also reduces the impact of human factors on test results, as the instability of manual operation can lead to inaccurate pressure application frequency. Automated control makes the testing process more stable and efficient, reducing labor costs. The airbag control unit 22 is integrated with other components such as the processor to form a complete automated testing system.

[0055] The airbag control component 22 can be a solenoid valve, an air pump, etc. In a first possible embodiment, the solenoid valve is a valve that controls the flow of fluid using electromagnetic force. When controlling the airbag 21, it is usually connected to an air source (such as a compressed air tank). When the solenoid valve is energized, the electromagnetic force causes the valve core to move, opening the valve channel, allowing compressed air from the air source to enter the airbag 21, thus inflating the airbag 21. To deflate, another solenoid valve connected to the airbag 21 and the outside atmosphere can be energized to open the valve, allowing the gas inside the airbag 21 to be discharged. This provides a fast response and can switch between inflating and deflating the airbag 21 in a short time, making it suitable for scenarios with high requirements for pressure change frequency. In a second possible embodiment, an air pump serves as the air source. The operating state of the air pump can be precisely controlled. The air pump can control its start-stop time and speed according to a preset program, thereby indirectly controlling the inflation and deflation of the airbag 21. This embodiment does not limit this aspect.

[0056] Optionally, combined Figure 1 and Figure 3The pressure detector testing device 100 also includes a first pressure plate 3 and a second pressure plate 4. The first pressure plate 3, the second pressure plate 4 and the carrier 1 are arranged in sequence at intervals. The first pressure plate 3 and the second pressure plate 4 are both parallel to the carrier surface 11. The first pressure plate 3 and the second pressure plate 4 are connected. An airbag 21 is arranged between the first pressure plate 3 and the second pressure plate 4. When the airbag 21 is inflated, it can make the second pressure plate 4 apply pressure to the pressure detector 9 to be tested.

[0057] The arrangement of the first pressure plate 3 and the second pressure plate 4 allows the pressure generated by the airbag 21 during inflation to be evenly transmitted to the pressure detector 9 under test through the second pressure plate 4. Compared to the airbag 21 acting directly on the pressure detector, the pressure plate increases the pressure application area, avoids excessive local pressure, and ensures that all parts of the pressure detector are subjected to relatively uniform pressure. This more accurately simulates the pressure distribution in actual use scenarios, improving the accuracy and reliability of the test results.

[0058] The first pressure plate 3 and the second pressure plate 4 are both parallel to the bearing surface 11, ensuring that the direction of pressure application is always perpendicular to the surface of the pressure detector 9 under test during the inflation and deflation of the airbag 21. This reduces lateral forces and offsets during the pressure application process, making the pressure application process more stable and further improving the accuracy of the test.

[0059] By adjusting the connection method or spacing between the first pressure plate 3 and the second pressure plate 4, the magnitude and range of applied pressure can be easily adjusted. This adjustability allows the testing device to better adapt to different testing requirements and experimental conditions, bringing greater convenience to testing work.

[0060] It should be noted that there are multiple ways in which the second pressure plate 4 can be pressed against the pressure detector 9 by inflating the airbag 21. In some possible embodiments, the second pressure plate 4 can be movably connected to the first pressure plate 3. When the airbag 21 is inflated, it presses against the second pressure plate 4, causing the second pressure plate 4 to move downward and press against the pressure detector 9. When the second pressure plate 4 is movably connected to the first pressure plate 3, the movable connection 72 between the second pressure plate 4 and the first pressure plate 3 is prone to wear and loosening. With increased use time, these problems may cause deviations in the movement trajectory of the second pressure plate 4, thereby affecting the accuracy and stability of pressure application. In other embodiments, the second pressure plate 4 is a deformable pressure plate. The following mainly uses deformation as an example for illustration.

[0061] The second pressure plate 4 is a deformable pressure plate, which is fixedly connected to the first pressure plate 3. The first pressure plate 3 can deform in the vertical direction, so that when the airbag 21 is inflated, the second pressure plate 4 can apply pressure to the pressure detector 9 to be tested.

[0062] In this embodiment, the first pressure plate 3 and the second pressure plate 4 are fixedly connected, and there are no moving parts between the second pressure plate 4 and the first pressure plate 3. This reduces the risk of inaccurate test results due to the failure of moving parts, and improves the reliability and stability of the entire testing device. The first pressure plate 3 and the second pressure plate 4 form a relatively stable integral structure. During the inflation and pressurization of the airbag 21, this structure can better withstand the pressure and is less prone to shaking or displacement, ensuring that the direction of pressure application is always perpendicular to the surface of the pressure detector 9 under test, further improving the accuracy of the test results.

[0063] Optionally, the first pressure plate 3 can be an aluminum plate, and the second pressure plate 4 can be a plastic plate.

[0064] The aluminum plate possesses high strength and rigidity, enabling it to maintain structural stability and resist excessive deformation or damage when the airbag 21 inflates. This helps ensure that the first pressure plate 3 effectively transmits the pressure from the airbag 21 to the second pressure plate 4 and the pressure detector 9 under test, guaranteeing the accuracy and reliability of the pressure test. Simultaneously, the rigidity of the aluminum plate allows the entire device to better maintain its shape and performance when subjected to external impacts or vibrations, improving its durability. The plastic plate exhibits good flexibility, allowing it to deform relatively easily under pressure, thus better conforming to the surface of the pressure detector 9 and resulting in a more uniform pressure distribution. Furthermore, the plastic plate has good shock absorption properties, buffering the instantaneous pressure impact generated when the airbag 21 inflates, reducing the risk of damage to the pressure detector. Especially for some high-precision and sensitive pressure detectors, this buffering effect effectively protects their internal structure and components, extending their service life.

[0065] As an optional implementation method, combined with Figures 1 to 5 , Figure 4 This is a schematic diagram of the structure of the pressure detector, which is a piezoelectric ceramic sensor, disclosed in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the carrier 1 and the limiting member 5 disclosed in the embodiments of this application. The lower surface of the second pressure plate 4 is provided with a buffer pad 41, and the second pressure plate 4 applies pressure to the pressure detector 9 to be tested through the buffer pad 41.

[0066] When the airbag 21 inflates and applies pressure to the second pressure plate 4 on the pressure detector 9 under test, a certain impact force is generated. The buffer pad 41 can act as a buffer, absorbing and dispersing this impact force, preventing the pressure detector 9 under test from being damaged by excessive instantaneous pressure. Especially for some more precise and fragile pressure detectors, the buffer pad 41 can effectively reduce the risk of damage to their internal structure due to impact, and extend the service life of the pressure detector.

[0067] Optionally, the cushioning pad 41 can be made of materials such as silicone or rubber, and this embodiment does not limit this.

[0068] There can be multiple buffer pads 41, and each buffer pad 41 corresponds to the position of a pressure detector.

[0069] In some embodiments, when the airbag 21 is in the deflated state, the distance between the first pressure plate 3 and the second pressure plate 4 is equal to the thickness of the airbag 21.

[0070] The airbag is initially in a deflated state, at which point the airbag 21 is precisely sandwiched between the first pressure plate 3 and the second pressure plate 4, without any additional gaps or compression. When the airbag 21 inflates at a preset frequency, the second pressure plate 4 is subjected to compressive force. The airbag 21 can more accurately transmit pressure to the second pressure plate 4, which in turn acts on the pressure detector 9 under test, reducing pressure application errors caused by uncertain initial conditions and improving the accuracy of test results.

[0071] If the spacing is too large, the airbag 21 may wobble inside the device and rub against surrounding components; if the spacing is too small, the airbag 21 will be subjected to continuous compression. A suitable spacing can reduce the contact and friction between the airbag 21 and other components, ensuring the compression effect of the pressure application component 2.

[0072] In some possible implementations, combined Figure 5 The bearing surface 11 has a placement position, and the pressure detector 9 to be tested is located in the placement position (not shown in the figure). The bearing 1 is provided with a limiting member 5, which is used to limit the pressure detector 9 to be tested to the placement position.

[0073] The placement position provides a clearly defined area for the pressure detector 9 to be tested, and the limiting member 5 further confines it to this position to prevent displacement during the test. This ensures that the pressure application component 2 can accurately apply pressure to a specific part of the pressure detector each time, avoiding uneven pressure or inaccurate test data due to positional deviation, thereby improving the accuracy and reliability of the test results.

[0074] The placement position can be a recess or a protrusion that fits the shape of the pressure detector 9 to be tested; this embodiment does not limit this.

[0075] Optionally, the limiting member 5 can be a screw or a protrusion formed on the bearing surface 11, etc., and this embodiment does not limit it.

[0076] Optionally, combined Figure 5 The limiting member 5 includes multiple limiting members 5, which are arranged at intervals around the placement position. The limiting member 5 abuts against the pressure detector 9 to be tested, so as to restrict the pressure detector 9 to be tested on the placement position.

[0077] Multiple limiting elements 5 are spaced around the placement position, enabling them to limit the pressure detector 9 under test from different directions. This allows for better adaptation to the shape and size of the detector, providing a more comprehensive fixation effect and preventing displacement of the detector in any direction. This ensures that the pressure detector 9 remains in the accurate position during testing, improving the accuracy and reliability of the test results.

[0078] As an optional implementation method, combined with Figure 1 , Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the handle body 71 in the first position as disclosed in the embodiments of this application. Figure 7 This is a schematic diagram of the handle body 71 in the second position as disclosed in the embodiment of this application. The pressure detector testing device 100 also includes a connecting plate 6 and a handle 7. The connecting plate 6 is disposed on the side of the first pressure plate 3 away from the airbag 21 and is spaced apart from the first pressure plate 3. The connecting plate 6 is connected to the second pressure plate 4. The handle 7 is connected to the bearing member 1 and the connecting plate 6 respectively. When the handle 7 is raised, it can drive the second pressure plate 4, the first pressure plate 3, the airbag 21 and the connecting plate 6 to move upward as a whole, so as to increase the gap between the second pressure plate 4 and the bearing surface 11. When the handle 7 is lowered, it can drive the second pressure plate 4, the first pressure plate 3, the airbag 21 and the connecting plate 6 to move downward as a whole, so as to decrease the gap between the second pressure plate 4 and the bearing surface 11.

[0079] Raising handle 7 increases the gap between the second pressure plate 4 and the bearing surface 11, providing sufficient space for placing the pressure detector 9 to be tested. Operators can easily place the pressure detector 9 at the designated position on the bearing surface 11 without worrying about obstruction from the second pressure plate 4. After testing, the pressure detector 9 can also be easily removed, improving operational convenience and efficiency.

[0080] The lifting and lowering of handle 7 can control the gap between the second pressure plate 4 and the bearing surface 11, thereby flexibly adjusting the initial distance and final pressure position between the pressure application component 2 (such as the airbag 21 and the second pressure plate 4) and the pressure detector 9 to be tested, according to different thicknesses, shapes, or test requirements. This helps ensure that pressure is accurately and evenly applied to the detector during testing, improving the accuracy and reliability of the test results.

[0081] The connecting plate 6 connects the first pressure plate 3, the second pressure plate 4, and the handle 7 together. When the handle 7 moves the components as a whole, it ensures that the relative positional relationship between the components remains stable, avoiding problems such as component shaking or misalignment during lifting. This integrated linkage design enhances the structural stability of the device, ensuring that the pressure application component 2 can accurately apply pressure to the pressure detector 9 placed on the bearing surface 11, thus improving the accuracy and repeatability of the test.

[0082] In an optional embodiment, the pressure detector testing device 100 further includes a fixed bracket 8 and a straight pressure rod 74. The fixed bracket 8 is connected to the support member 1, the handle 7 is rotatably connected to the fixed bracket 8, and the straight pressure rod 74 is movably connected to the handle 7. The handle 7 can switch between a raised state and a lowered state. When the handle 7 is raised, a gap is formed between the second pressure plate 4 and the support member 1 so that the pressure detector 9 to be tested can be located in the gap. When the handle 7 is lowered, the straight pressure rod 74 moves downward in the vertical direction so that the second pressure plate 4 can press the pressure detector 9 to be tested.

[0083] Specifically, the fixed bracket 8 includes a bracket body 81 and a sleeve 82. The sleeve 82 is connected to the fixed bracket 8. The straight pressure rod 74 passes through the sleeve 82 so that the straight pressure rod 74 can move in the vertical direction. The pressure detector testing device 100 also includes a rotating fitting 73. The handle 7 includes a handle body 71 and a connecting part 72. The first end of the connecting part 72 is rotatably connected to the bracket body 81. One end of the rotating fitting 73 is rotatably connected to the second end of the connecting part 72, and the other end is fixedly connected to the straight pressure rod 74. The handle 7 is connected to the second end of the connecting part 72.

[0084] When handle 7 is raised, as Figure 6 As shown, the handle body 71 is in the first position, and a gap is formed between the second pressure plate 4 and the bearing surface 11. The pressure detector 9 to be tested is placed in the placement position and abuts against the limiting member 5. When the handle 7 descends, as... Figure 7 As shown, at this time, the handle body 71 is pulled down from the first position to the second position, the connecting part 72 rotates 180 degrees around its first end, the rotating mating part 73 drives the straight pressure rod 74 to descend in the sleeve 82, thereby causing the second pressure plate 4 to come into contact with the pressure sensor to be tested for testing.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A pressure detector testing device, characterized in that, include: A carrier component having a bearing surface for placing a pressure detector to be measured; A pressure-applying component is disposed above the bearing surface, and the pressure-applying component is capable of applying pressure to the pressure detector under test at a preset frequency; The processor is electrically connected to the pressure application component and the pressure detector under test to compare the preset frequency with the frequency of the pressure collected by the pressure detector under test, thereby determining whether the accuracy of the pressure detector under test is within the preset range.

2. The pressure detector testing device according to claim 1, characterized in that, The pressure application component includes an airbag located above the support member, which, when inflated, can apply pressure to the pressure detector under test.

3. The pressure detector testing device according to claim 2, characterized in that, The pressure detector testing device also includes an airbag control component, which is connected to the airbag and can control the inflation and deflation of the airbag according to the preset frequency.

4. The pressure detector testing device according to claim 2, characterized in that, The pressure detector testing device further includes a first pressure plate and a second pressure plate. The first pressure plate, the second pressure plate, and the support member are arranged sequentially at intervals. The first pressure plate and the second pressure plate are both parallel to the support surface. The first pressure plate is connected to the second pressure plate. The airbag is disposed between the first pressure plate and the second pressure plate. When the airbag is inflated, it enables the second pressure plate to apply pressure to the pressure detector under test.

5. The pressure detector testing device according to claim 4, characterized in that, The second pressure plate is a deformable pressure plate.

6. The pressure detector testing device according to claim 4, characterized in that, The lower surface of the second pressure plate is provided with a buffer pad, and the second pressure plate applies pressure to the pressure detector under test through the buffer pad.

7. The pressure detector testing device according to claim 4, characterized in that, When the airbag is in the deflated state, the distance between the first pressure plate and the second pressure plate is equal to the thickness of the airbag.

8. The pressure detector testing apparatus according to any one of claims 1-7, characterized in that, The bearing surface has a placement position, the pressure detector to be tested is located at the placement position, and the bearing is provided with a limiting member, which is used to limit the pressure detector to be tested to the placement position.

9. The pressure detector testing device according to claim 8, characterized in that, The limiting member includes multiple members, which are spaced apart around the placement position.

10. The pressure detector testing device according to claim 4, characterized in that, The pressure detector testing device further includes a connecting plate and a handle. The connecting plate is disposed on the side of the first pressure plate away from the airbag and is spaced apart from the first pressure plate. The connecting plate is connected to the second pressure plate. The handle is connected to the carrier and the connecting plate respectively. When the handle is raised, it can drive the second pressure plate, the first pressure plate, the airbag and the connecting plate to move upward as a whole, so as to increase the gap between the second pressure plate and the carrier surface. When the handle is lowered, it can drive the second pressure plate, the first pressure plate, the airbag and the connecting plate to move downward as a whole, so as to decrease the gap between the second pressure plate and the carrier surface.

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