A workbench for testing the compressive strength of new forklift materials

Abstract

The present invention relates to a compressive capacity testing workbench for new forklift materials applied in the technical field of material performance testing, comprising a test bench body with a cavity provided therein, a pressure loading mechanism fixedly mounted on the test bench body, a nano-variation hole provided in the middle of the top end of the test bench body, a plurality of exhaust auxiliary measurement holes provided at the top end of the test bench body, and a firmware variable measurement component provided in the test bench body. By providing the firmware variable measurement component and the like, when the compressive capacity testing of new forklift materials is performed, not only the maximum pressure that the test piece can withstand can be measured, but also the pressure corresponding to when the test piece begins to deform can be measured, thereby enabling a more comprehensive evaluation of the performance of the new forklift materials, thereby promoting the research and development and improvement of the new forklift materials and improving the functionality of the test bench. In addition, the firmware variable measurement component can fix the test piece by negative pressure, eliminating the need for a separate fixture or the like to fix the test piece, thereby improving the practicality of the test bench.

Description

Technical Field

[0001] The invention relates to a testing workbench, in particular to a forklift new material compression resistance testing workbench applied in the technical field of material performance testing. Background Art

[0002] Forklifts play a key role in numerous industrial scenarios, including logistics and warehousing. The materials used in their components must exhibit excellent performance. In recent years, technological advancements have led to the application of various new materials in forklifts, such as novel alloys and high-performance composite materials. These new materials are expected to enhance forklift durability, load-bearing capacity, and safety. Compressive strength is a key performance characteristic of forklift materials. Therefore, when developing new materials for forklifts and researching their applications, compressive testing is necessary to evaluate their compressive properties.

[0003] Chinese patent publication number CN218271242U discloses a forklift parts compression tester. In this patent, through the cooperation of a positioning box, a positioning plate and a positioning rod, the pressure plate can remain horizontal during movement, thereby ensuring that the pressure plate can apply balanced pressure to the material and ensuring the accuracy of the detection.

[0004] A Chinese patent with publication number CN116008075B discloses a device for testing the compressive properties of new materials. In this patent, by setting up a control component and a support component, not only can the distance between the support components on both sides be adjusted, but the support components can also be driven to complete the clamping and fixation of the new material from both ends, ensuring the stability of the new material during testing.

[0005] In existing technology, when testing the compressive strength of new forklift materials, increasing pressure is applied to the specimen until it fails, measuring the maximum pressure the specimen can withstand. This incomplete test fails to detect the pressure at which the specimen begins to deform, making it impossible to fully evaluate material performance and hindering the research and development and improvement of new materials. Therefore, we propose a workbench for testing the compressive strength of new forklift materials. Summary of the Invention

[0006] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is: when testing the compressive strength of new forklift materials, how to detect the corresponding pressure when the test piece begins to deform, so as to more comprehensively evaluate the material performance.

[0007] To solve the above problems, the present invention provides a forklift new material compressive strength test bench, comprising a test bench body with a cavity formed therein, a pressure loading mechanism fixedly mounted on the test bench body, a nano-variable hole formed in the middle of the top of the test bench body, a plurality of exhaust auxiliary test holes formed at the top of the test bench body, and a firmware variable measurement component disposed within the test bench body;

[0008] The firmware change measurement component includes an outer sealing tube body and an inner sealing tube body fixedly installed in the test bench body. The inner sealing tube body is located on the inner side of the outer sealing tube body. A sliding sealing sleeve is provided on the outer wall of the inner sealing tube body and is slidably and sealedly connected thereto. An annular sealing plate for sealing the exhaust auxiliary measurement hole is provided between the outer sealing tube body and the inner sealing tube body. A pair of connecting rods are fixedly connected between the sliding sealing sleeve and the annular sealing plate. A lifting cylinder is fixedly installed in the inner sealing tube body. The output end of the lifting cylinder is fixedly connected to a piston plate slidably and sealedly connected to the inner sealing tube body. Air guide holes are provided below the piston plate on the outer walls on both sides of the inner sealing tube body. A patch sensing plate is provided above the piston plate. The patch sensing plate is located on the inner side of the nano-variable hole and the top of the patch sensing plate is flush with the top of the test bench body. The bottom end of the patch sensing plate is fixedly connected to a linkage rod. The outer walls on both sides of the inner sealing tube body are provided with sliding grooves that match the linkage rod and are located above the piston plate. The two sliding grooves correspond to the two linkage rods respectively. The linkage rod passes through the corresponding sliding grooves and is slidably connected thereto, and the end of the linkage rod away from the patch sensing plate is fixedly connected to the sliding seal sleeve. An elastic hanging rope is fixedly connected between the linkage rod and the inner wall of the top of the test bench body, and an air pressure sensor is fixedly installed on the inner wall of the outer sealing tube body.

[0009] In the above-mentioned forklift new material compressive capacity test workbench, when conducting a compressive capacity test on the new forklift material, not only the maximum pressure that the specimen can withstand can be measured, but also the pressure corresponding to when the specimen begins to deform can be measured, thereby enabling a more comprehensive evaluation of the performance of the new forklift material, and further promoting the research and development and improvement of new forklift materials.

[0010] As a further improvement of the present application, the nanovariable hole is located directly below the pressure loading mechanism, and multiple exhaust auxiliary measurement holes are evenly distributed on the outside of the nanovariable hole with the nanovariable hole as the center, and the exhaust auxiliary measurement hole is located between the outer sealing tube body and the inner sealing tube body. The upper and lower ends of the outer sealing tube body and the upper and lower ends of the inner sealing tube body are respectively sealed and fixedly connected to the top inner wall and the bottom inner wall of the test bench body, the annular sealing plate is movably sealed to the top inner wall of the test bench body, and the slide groove is located on the inner side of the sliding seal sleeve.

[0011] As a further improvement of the present application, a test piece is made and placed on the top of the test bench so that the test piece covers the nano-variable hole. The lifting cylinder is started to drive the piston plate downward, causing the air pressure above the piston plate to decrease to a negative pressure state, and the air pressure in the area between the outer sealed tube body and the inner sealed tube body to increase. The air pressure sensor is started to monitor the air pressure changes in the area between the outer sealed tube body and the inner sealed tube body, and then the pressure loading mechanism is controlled to apply pressure to the test piece. At the same time, the air pressure data monitored by the air pressure sensor is observed. When the air pressure data suddenly and continuously decreases, it indicates that the test piece has been deformed. At this time, the pressure loading mechanism is controlled to stop increasing the pressure, and the pressure applied by the pressure loading mechanism to the test piece at this time is read. Then, the pressure corresponding to the beginning of deformation of the test piece is calculated based on this pressure.

[0012] As a further improvement of the present application, the patch sensing plate is a porous mesh structure to prevent negative pressure from affecting the patch sensing plate. A plurality of suction-aiding holes are provided on the top outer wall of the test bench body. The plurality of suction-aiding holes are evenly distributed on the outside of the nano-variable hole with the nano-variable hole as the center, and the suction-aiding holes are located on the inner side of the inner sealing tube body. The suction-aiding holes can enhance the fixing effect of negative pressure on the test piece.

[0013] As a further improvement of the present application, a placement mark for positioning the test piece is provided on the top outer wall of the test bench body. The size of the placement mark matches the size of the test piece. The nano-variable hole and the auxiliary absorption hole are both located on the inner side of the placement mark, and the exhaust auxiliary measurement hole is located on the outer side of the placement mark. The placement mark can play a positioning role when placing the test piece, which is conducive to the accurate placement of the test piece.

[0014] As another improvement of the present application, the test workbench also includes a test and impedance intelligent controller fixedly installed on the test bench body, and the test and impedance intelligent controller is provided with a test setting module, a test control module, a test analysis module, a visual display module, and a test control button. The test setting module is signal-connected to the test control module, the test control module is signal-connected to the pressure loading mechanism, the lifting cylinder, and the air pressure sensor, the pressure loading mechanism and the air pressure sensor are signal-connected to the test analysis module, the test analysis module is signal-connected to the test control module and the visual display module, and the test control button is signal-connected to the test control module.

[0015] As another improvement supplement to this application, a feedback light is fixedly installed on the test bench, and the test analysis module is connected to the feedback light signal. The test and impedance intelligent controller can not only automatically control the progress of the test, but also automatically detect and judge whether the test piece can be completely restored after deformation.

[0016] In summary, the present application, through the setting of the firmware variable measurement component, etc., makes it possible to measure not only the maximum pressure that the specimen can withstand, but also the pressure corresponding to the beginning of deformation of the specimen when the compressive capacity test of the new forklift material is conducted, so as to more comprehensively evaluate the performance of the new forklift material, thereby promoting the research and development and improvement of new forklift materials, and improving the functionality of the test workbench. The firmware variable measurement component can also fix the specimen by negative pressure, and there is no need to set up a separate fixture to fix the specimen, thereby improving the practicality of the test workbench. Through the setting of the test and resistance intelligent controller, the test and resistance intelligent controller can not only automatically control the progress of the test, thereby improving the intelligence of the test workbench, but also automatically detect and judge whether the specimen can be completely restored after deformation after the specimen begins to deform, thereby further improving the comprehensiveness of the test and further improving the functionality and practicality of the test workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a forklift new material compressive strength test bench in the first embodiment of the present application;

[0018] Figure 2 Schematic diagram of the cross-sectional structure of the test platform in the first and second embodiments of the present application;

[0019] Figure 3 Schematic diagram of the cross-sectional structure of the inner sealing tube body in the first and second embodiments of the present application;

[0020] Figure 4 This is a schematic diagram of the top view of the test platform in the first and second embodiments of the present application;

[0021] Figure 5 This is a schematic diagram of the top structure of the outer sealing tube body in the first and second embodiments of the present application;

[0022] Figure 6 This is a schematic diagram of the three-dimensional structure of a forklift new material compressive strength test bench in the second embodiment of the present application;

[0023] Figure 7 This is a system structure block diagram of the anti-counterfeiting intelligent controller in the second embodiment of this application.

[0024] Description of the numbers in the figure:

[0025] 101. Test bench body; 102. Nano-variable hole; 103. Exhaust auxiliary measurement hole; 104. Suction auxiliary hole; 105. Parts placement mark; 106. Feedback light; 002. Pressure loading mechanism; 301. Outer sealing tube body; 302. Inner sealing tube body; 303. Sliding seal sleeve; 304. Annular sealing plate; 305. Connecting rod; 306. Lifting cylinder; 307. Piston plate; 308. Air guide hole; 309. Parts sensing plate; 310. Linkage rod; 311. Slide groove; 312. Elastic hanging rope; 313. Air pressure sensor; 004. Test and resistance intelligent controller. DETAILED DESCRIPTION

[0026] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0027] The first implementation method:

[0028] Figure 1-Figure 5 A workbench for testing the compressive strength of new materials for forklifts is shown, comprising a test platform body 101 with a cavity defined therein. A pressure-loading mechanism 002 is fixedly mounted on the test platform body 101 (the pressure-loading mechanism 002 utilizes existing technology; those skilled in the art may select a suitable mechanism or device capable of applying pressure to a test piece from the existing technology as the pressure-loading mechanism 002 in this application). A nano-variable hole 102 is defined in the middle of the top of the test platform body 101. The top of the test platform body 101 is also provided with a plurality of exhaust-assisted test holes 103. A firmware variation measurement component is disposed within the test platform body 101.

[0029] The firmware variation measurement component includes an outer sealing tube body 301 and an inner sealing tube body 302 fixedly mounted in the test bench body 101. The inner sealing tube body 302 is located on the inner side of the outer sealing tube body 301. A sliding sealing sleeve 303 is sleeved on the outer wall of the inner sealing tube body 302 and is slidably and sealedly connected thereto. An annular sealing plate 304 for sealing the exhaust auxiliary measurement hole 103 is provided between the outer sealing tube body 301 and the inner sealing tube body 302. A pair of connecting rods 305 are fixedly connected between the sliding sealing sleeve 303 and the annular sealing plate 304. A lifting cylinder 306 is fixedly installed in the inner sealing tube body 302. The output end of the lifting cylinder 306 is fixedly connected to a piston plate 307 which is slidably and sealably connected to the inner sealing tube body 302. Air guide holes 308 located below the piston plate 307 are provided on the outer walls on both sides of the inner sealing tube body 302. A patch sensing plate 309 is provided above 307. The patch sensing plate 309 is located on the inner side of the nano-variable hole 102 and the top of the patch sensing plate 309 is flush with the top of the test bench body 101. The bottom end of the patch sensing plate 309 is fixedly connected to a linkage rod 310. The outer walls on both sides of the inner sealing tube body 302 are provided with sliding grooves 311 that match the linkage rod 310 and are located above the piston plate 307. The two sliding grooves 311 correspond to the two linkage rods 310 respectively. The linkage rod 310 passes through the corresponding sliding grooves 311 and is slidably connected thereto, and the end of the linkage rod 310 away from the patch sensing plate 309 is fixedly connected to the sliding sealing sleeve 303. An elastic hanging rope 312 is fixedly connected between the linkage rod 310 and the inner wall of the top of the test bench body 101, and an air pressure sensor 313 is fixedly installed on the inner wall of the outer sealing tube body 301.

[0030] The nanovariable hole 102 is located directly below the pressure loading mechanism 002, and multiple exhaust auxiliary measurement holes 103 are evenly distributed on the outside of the nanovariable hole 102 with the nanovariable hole 102 as the center, and the exhaust auxiliary measurement holes 103 are located between the outer sealing tube body 301 and the inner sealing tube body 302. The upper and lower ends of the outer sealing tube body 301 and the upper and lower ends of the inner sealing tube body 302 are respectively sealed and fixedly connected to the top inner wall and the bottom inner wall of the test bench body 101. The annular sealing plate 304 is movably sealed and connected to the top inner wall of the test bench body 101, and the slide groove 311 is located on the inner side of the sliding seal sleeve 303.

[0031] Prepare the test piece and place it on the top of the test bench 101 so that it covers the nano-variable hole 102 (because the top of the patch sensing plate 309 is flush with the top of the test bench 101, after the test piece is placed, the top of the patch sensing plate 309 will be in contact with the bottom of the test piece). Start the lifting cylinder 306, so that the lifting cylinder 306 drives the piston plate 307 to move downward a certain distance, causing the air pressure above the piston plate 307 to decrease to a negative pressure state, and increasing the air pressure in the area between the outer sealing tube 301 and the inner sealing tube 302. When the upper portion of 307 is in a negative pressure state, the test piece will be closely attached to the top of the test bench 101 under the action of the negative pressure, thereby fixing the test piece without the need for a fixture or other mechanism to fix the test piece. In addition, when the lifting cylinder 306 drives the piston plate 307 to move downward, part of the air in the inner sealed tube 302 is squeezed into the area between the outer sealed tube 301 and the inner sealed tube 302 through the air guide hole 308, causing the air pressure in the area between the outer sealed tube 301 and the inner sealed tube 302 to increase and become greater than the ambient air pressure.

[0032] After the lifting cylinder 306 drives the piston plate 307 to move downward, the air pressure sensor 313 is started to monitor the air pressure changes in the area between the outer sealing tube body 301 and the inner sealing tube body 302, and the pressure loading mechanism 002 is controlled to apply pressure to the test piece (the pressure continues to increase at a certain amplitude and frequency, and the initial pressure and the amplitude and frequency of the pressure increase are reasonably set by those skilled in the art according to the situation). At the same time, the air pressure data monitored by the air pressure sensor 313 is observed. As the pressure gradually increases, the test piece will be deformed. The deformation of the test piece will squeeze the patch sensing plate 309 to move the patch sensing plate 309 downward. The downward movement of the patch sensing plate 309 will be connected to the linkage rod 310 and the sliding sleeve. The cylinder 303 and the connecting rod 305 drive the annular sealing plate 304 to move downward, causing the air between the outer sealed tube body 301 and the inner sealed tube body 302 to quickly leak outward through the exhaust auxiliary measurement hole 103, thereby causing the air pressure in the area between the outer sealed tube body 301 and the inner sealed tube body 302 to drop suddenly and rapidly. Therefore, when the air pressure data suddenly and significantly drops continuously, it indicates that the test piece has deformed. At this time, the pressure loading mechanism 002 is controlled to stop increasing the pressure, and the pressure applied by the pressure loading mechanism 002 to the test piece at this time is read. Then, based on this pressure, the pressure corresponding to the start of the deformation of the test piece is calculated. The pressure applied by the pressure loading mechanism 002 to the test piece at this time is set as P2;

[0033] Before starting the test, start the lifting cylinder 306 so that the lifting cylinder 306 drives the piston plate 307 to move downward a certain distance (the downward distance here is consistent with the downward distance that the lifting cylinder 306 drives the piston plate 307 to move downward during the test), start the air pressure sensor 313 to monitor the air pressure changes in the area between the outer sealed tube body 301 and the inner sealed tube body 302, then control the pressure loading mechanism 002 to apply pressure to the patch sensing plate 309, and observe the air pressure data monitored by the air pressure sensor 313. When the air pressure data suddenly drops significantly and continuously, control the pressure loading mechanism 002 to stop increasing the pressure, and read the pressure applied by the pressure loading mechanism 002 to the patch sensing plate 309 at this time. Let this pressure be P1. Then, the pressure P3 corresponding to the start of deformation of the specimen is equal to the difference between P2 and P1, that is: P3=P2-P1;

[0034] After the specimen is deformed and P2 is read, the pressure loading mechanism 002 is controlled to continue applying pressure to the specimen until the specimen is destroyed. Then, the pressure applied by the pressure loading mechanism 002 to the specimen at this time is read to obtain the maximum pressure that the specimen can withstand. Therefore, through the setting of the firmware variable measurement component, etc., when the compressive resistance of new forklift materials is tested, not only the maximum pressure that the specimen can withstand can be measured, but also the pressure corresponding to when the specimen begins to deform can be measured, so that the performance of new forklift materials can be evaluated more comprehensively, thereby promoting the research and development and improvement of new forklift materials, improving the functionality of the test workbench, and the firmware variable measurement component can also fix the specimen through negative pressure, without the need to set up a separate fixture to fix the specimen, thereby improving the practicality of the test workbench.

[0035] See also Figure 1 and Figure 2 The patch sensing plate 309 is a porous mesh structure to prevent negative pressure from affecting the patch sensing plate 309. A plurality of suction-assisting holes 104 are provided on the top outer wall of the test platform body 101. The plurality of suction-assisting holes 104 are evenly distributed on the outside of the nano-variable hole 102 with the nano-variable hole 102 as the center, and the suction-assisting holes 104 are located on the inner side of the inner sealing tube body 302. The suction-assisting holes 104 can enhance the fixing effect of negative pressure on the test piece.

[0036] See also Figure 1 and Figure 4 A placement mark 105 for positioning the test piece is provided on the top outer wall of the test bench body 101. The size of the placement mark 105 matches the size of the test piece. The nano-variable hole 102 and the suction-aiding hole 104 are both located on the inner side of the placement mark 105, and the exhaust-aiding hole 103 is located on the outer side of the placement mark 105. The placement mark 105 can play a positioning role when placing the test piece, which is conducive to the accurate placement of the test piece.

[0037] Second implementation method:

[0038] See also Figure 6 and Figure 7 , which is different from the first embodiment, the test workbench also includes a test and impedance intelligent controller 004 fixedly installed on the test bench body 101, and the test and impedance intelligent controller 004 is provided with a test setting module, a test control module, a test analysis module, a visual display module, and a test control button. The test setting module is signal-connected to the test control module, and the test control module is signal-connected to the pressure loading mechanism 002, the lifting cylinder 306, and the air pressure sensor 313. The pressure loading mechanism 002 and the air pressure sensor 313 are signal-connected to the test analysis module, and the test analysis module is signal-connected to the test control module and the visual display module. The test control button is connected to the test control module signal. A feedback light 106 is also fixedly installed on the test bench body 101. The test analysis module is connected to the feedback light 106 signal. The test setting module is used to set the test parameters. The test control module is used to control the pressure loading mechanism 002, the lifting cylinder 306, and the air pressure sensor 313 to perform the test operation. The test analysis module is used to analyze the air pressure data monitored by the air pressure sensor 313 to detect the deformation of the specimen and determine whether the specimen can be restored after deformation. The visual display module is used to display the pressure data. The test control button is used to issue test instructions to the test control module.

[0039] During the test, after the specimen is placed, the test control button is used to send a command to the test control module to start the test. After receiving the command, the test control module will start the lifting cylinder 306, so that the lifting cylinder 306 drives the piston plate 307 to move downward a certain distance (the downward movement distance here can be set through the test setting module). Then, the test control module will start the air pressure sensor 313 to monitor the air pressure changes in the area between the outer sealing tube body 301 and the inner sealing tube body 302, and the air pressure data monitored by the air pressure sensor 313 will be transmitted to the test analysis module in real time. Then, the test control module will control the pressure loading mechanism 002 to apply pressure to the specimen (the pressure is at a certain amplitude). The initial pressure and the amplitude and frequency of the pressure increase can be set through the test setting module). Since the deformation of the test piece will cause the air pressure data monitored by the air pressure sensor 313 to suddenly and significantly decrease continuously, the test analysis module can find that the test piece begins to deform by analyzing the air pressure data monitored by the air pressure sensor 313. At this time, the test analysis module will send a signal to the test control module, causing the test control module to control the pressure loading mechanism 002 to stop increasing the pressure. The test analysis module will read the pressure applied by the pressure loading mechanism 002 to the test piece at this time and send this pressure data to the visualization display module, so that the visualization display module displays the pressure data.

[0040] Assume that the position of the piston plate 307 at this time is its base point position. Subsequently, the test control module will control the pressure loading mechanism 002 to reset. Then, the test control module will control the lifting cylinder 306 to drive the piston plate 307 to move downward a certain distance again (the downward movement distance here can also be set by the test setting module). After the pressure loading mechanism 002 is reset, the test piece will rebound, and the elastic hanging rope 312 will also rebound to drive the patch sensing plate 309, the annular sealing plate 304, etc. to move upward and reset. The downward movement of the piston plate 307 will continue to seal outward. Air is injected into the area between the tube body 301 and the inner sealing tube body 302. If the specimen can be fully restored, the annular sealing plate 304 can be fully reset and re-block the exhaust auxiliary measurement hole 103, so that when the piston plate 307 moves downward, the air pressure data monitored by the air pressure sensor 313 will continue to increase and tend to be stable. On the contrary, if the specimen is not fully restored, the annular sealing plate 304 cannot be fully reset, so that when the piston plate 307 moves downward, air will leak out from the exhaust auxiliary measurement hole 103, so the air pressure data will not continue to increase and tend to be stable. During this process, the test analysis module can judge whether the test piece can be fully restored by analyzing the air pressure data monitored by the air pressure sensor 313. When the judgment result is yes (that is, when the test piece can be fully restored), the test analysis module will control the feedback light 106 to emit a green light. When the judgment result is no, the test analysis module will control the feedback light 106 to emit a red light to feed back the results of the detection and judgment to the relevant personnel. After judging the result, the test analysis module will send a signal to the test control module to make the test control module first control the lifting cylinder 306 to drive the lifting cylinder 306 to lift the test piece. The piston plate 307 moves upward, causing the piston plate 307 to return to its base position, and then the test control module will control the pressure loading mechanism 002 to continue pressure testing the specimen and continuously increase the pressure until the specimen is destroyed. Therefore, through the setting of the test and resistance intelligent controller 004, the test and resistance intelligent controller 004 can not only automatically control the progress of the test, thereby improving the intelligence of the test workbench, but also automatically detect and judge whether the specimen can be completely restored after deformation after the specimen begins to deform, thereby further improving the comprehensiveness of the test and further improving the functionality and practicality of the test workbench.

[0041] In addition, the test analysis module determines whether the specimen can be completely restored. When the judgment result is yes, the pressure loading mechanism 002 is controlled to apply pressure to the specimen with a pressure greater than P2 to make the specimen further deform. Then, according to the above operation, it is detected and judged whether the specimen can be completely restored until the judgment result of the test analysis module is no (that is, the specimen fails to be completely restored). Then, the pressure applied by the corresponding pressure loading mechanism 002 to the specimen is read, and the pressure corresponding to the permanent deformation of the specimen can be obtained by calculation. Therefore, the test workbench in this application can also test at what load the specimen will undergo permanent deformation, further improving the functionality and practicality of the test workbench.

[0042] In view of current actual needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of the present invention.

Claims

1. A forklift new material compressive strength test bench, comprising a test bench body (101) with a cavity formed therein, a pressure loading mechanism (002) fixedly mounted on the test bench body (101), characterized in that: A nano-variable hole (102) is provided in the middle of the top of the test bench body (101), a plurality of exhaust auxiliary test holes (103) are also provided at the top of the test bench body (101), and a firmware variable measurement component is provided in the test bench body (101); The firmware variation measurement assembly comprises an outer sealing tube body (301) and an inner sealing tube body (302) fixedly mounted in a test bench body (101); the inner sealing tube body (302) is located on the inner side of the outer sealing tube body (301); a sliding sealing sleeve (303) is sleeved on the outer wall of the inner sealing tube body (302) and is connected to the outer sealing tube body (301) in a sliding and sealing manner; the exhaust auxiliary measurement hole (103) is located between the outer sealing tube body (301) and the inner sealing tube body (302); An annular sealing plate (304) for sealing the exhaust auxiliary measuring hole (103) is provided between the sliding sealing sleeve (303) and the annular sealing plate (304), a pair of connecting rods (305) are fixedly connected between the sliding sealing sleeve (303) and the annular sealing plate (304), a lifting cylinder (306) is fixedly installed in the inner sealing tube body (302), the output end of the lifting cylinder (306) is fixedly connected to a piston plate (307) which is slidingly sealed with the inner sealing tube body (302), and the outer walls on both sides of the inner sealing tube body (302) are provided with a piston plate (307) located on the piston plate (307). 7) The air guide hole (308) below, a patch sensing plate (309) is provided above the piston plate (307), the patch sensing plate (309) is located inside the nano-variable hole (102) and the top of the patch sensing plate (309) is flush with the top of the test bench body (101), the bottom end of the patch sensing plate (309) is fixedly connected to a linkage rod (310), and the outer walls on both sides of the inner sealing tube body (302) are provided with a slide groove matching the linkage rod (310) and located above the piston plate (307) (311), the two slide grooves (311) correspond to the two linkage rods (310) respectively, the linkage rod (310) passes through the corresponding slide grooves (311) and is slidably connected thereto, and the end of the linkage rod (310) away from the patch sensing plate (309) is fixedly connected to the sliding seal sleeve (303), an elastic hanging rope (312) is fixedly connected between the linkage rod (310) and the top inner wall of the test bench body (101), and an air pressure sensor (313) is fixedly installed on the inner wall of the outer sealing tube body (301).

2. A forklift new material compressive strength test bench according to claim 1, characterized in that: The nano-variable hole (102) is located directly below the pressure loading mechanism (002), and a plurality of the exhaust auxiliary measurement holes (103) are evenly distributed on the outside of the nano-variable hole (102) with the nano-variable hole (102) as the center. The upper and lower ends of the outer sealing tube body (301) and the upper and lower ends of the inner sealing tube body (302) are respectively sealed and fixedly connected to the top inner wall and the bottom inner wall of the test bench body (101). The annular sealing plate (304) is movably sealed and connected to the top inner wall of the test bench body (101). The sliding groove (311) is located on the inner side of the sliding sealing sleeve (303).

3. A forklift new material compressive strength test bench according to claim 2, characterized in that: A test piece is prepared and placed on the top of the test bench body (101) so that the test piece covers the nano-variable hole (102). The lifting cylinder (306) is started so that the lifting cylinder (306) drives the piston plate (307) to move downward, causing the air pressure above the piston plate (307) to decrease to a negative pressure state and increasing the air pressure in the area between the outer sealed tube body (301) and the inner sealed tube body (302). The air pressure sensor (313) is started to monitor the air pressure change in the area between the outer sealed tube body (301) and the inner sealed tube body (302). Then, the pressure loading mechanism (002) is controlled to apply pressure to the test piece. At the same time, the air pressure data monitored by the air pressure sensor (313) is observed. When the air pressure data suddenly and continuously decreases, it indicates that the test piece has deformed. At this time, the pressure loading mechanism (002) is controlled to stop increasing the pressure, and the pressure applied by the pressure loading mechanism (002) to the test piece at this time is read. Then, the pressure corresponding to the start of deformation of the test piece is calculated based on the pressure.

4. A forklift new material compressive strength test bench according to claim 1, characterized in that: The patch sensing plate (309) is a multi-porous mesh structure, and a plurality of suction-assisting holes (104) are provided on the top outer wall of the test platform body (101). The plurality of suction-assisting holes (104) are evenly distributed on the outer side of the nano-variable hole (102) with the nano-variable hole (102) as the center, and the suction-assisting holes (104) are located on the inner side of the inner sealed tube body (302).

5. A forklift new material compressive strength test bench according to claim 4, characterized in that: A placement mark (105) for positioning the test piece is provided on the top outer wall of the test bench body (101); the size of the placement mark (105) matches the size of the test piece; the nano-variable hole (102) and the suction-assisting hole (104) are both located inside the placement mark (105); and the exhaust-assisting hole (103) is located outside the placement mark (105).

6. A forklift new material compressive strength test bench according to claim 1, characterized in that: The invention also includes a test and impedance intelligent controller (004) fixedly mounted on the test bench body (101), wherein the test and impedance intelligent controller (004) is provided with a test setting module, a test control module, a test analysis module, a visual display module, and a test control button. The test setting module is signal-connected to the test control module, the test control module is signal-connected to the pressure loading mechanism (002), the lifting cylinder (306), and the air pressure sensor (313), the pressure loading mechanism (002) and the air pressure sensor (313) are signal-connected to the test analysis module, the test analysis module is signal-connected to the test control module and the visual display module, and the test control button is signal-connected to the test control module.

7. A forklift new material compressive strength test bench according to claim 6, characterized in that: A feedback light (106) is also fixedly mounted on the test bench body (101), and the test analysis module is signal-connected to the feedback light (106).

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