A handle fatigue tester
By combining a microcomputer controller and amplitude adjustment mechanism with a servo motor and infrared grating monitoring, the problem of existing handheld fatigue testers being unable to accurately adjust the frequency and adapt to different standards has been solved. It achieves accurate frequency adjustment and multi-standard adaptation, has destructive monitoring function, and is easy to operate.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INTERTEK TESTING SERVICES SHENZHEN LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
Smart Images
Figure CN224500260U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fatigue testing, and in particular to a handle fatigue testing instrument. Background Technology
[0002] Cookware is a significant category of food containers. With technological advancements and rising consumer demands for product quality, durability has become a crucial factor. To better ensure product quality, improve durability, serve the industry, and meet consumer requirements, it is essential to minimize the likelihood of product failure and damage during extended use.
[0003] Current handheld fatigue testing instruments use cylinder drive, which can meet the requirements of qualitative testing, i.e., perform a specified number of fatigue tests. A knob-type frequency adjustment allows for rough adjustment of the test frequency. However, current handheld fatigue testing instruments cannot precisely adjust the frequency and are not compatible with different standards. Utility Model Content
[0004] In view of the aforementioned problems, this application is made to provide a handle fatigue tester that overcomes or at least partially solves the aforementioned problems, comprising a microcomputer controller, a test platform, and a height adjustment mechanism, a handle clamping mechanism, and an amplitude adjustment mechanism all disposed on the test platform, wherein the handle clamping mechanism is mounted on the height adjustment mechanism, and the amplitude adjustment mechanism is mounted on the bottom end of the height adjustment mechanism;
[0005] The amplitude adjustment mechanism includes a servo motor, an eccentric cantilever, and a lifting shaft. The servo motor is connected to the lifting shaft through the eccentric cantilever, and the microcomputer controller is electrically connected to the servo motor.
[0006] When the test is started, the servo motor drives the eccentric cantilever to rotate, and the lifting shaft drives the sample held by the handle clamping mechanism to perform vertical reciprocating motion.
[0007] Preferably, the eccentric cantilever is provided with an amplitude indicator slider and an amplitude adjusting nut for adjusting the rotation radius. The amplitude indicator slider is connected to the lifting shaft, and the amplitude adjusting nut is connected to the amplitude indicator slider through a threaded structure.
[0008] Preferably, the height adjustment mechanism includes a lifting bearing, a lifting guide rail, a height adjustment shaft, and a lifting base. The lifting base is connected to the lifting guide rail via the lifting bearing, and the lifting base slides in conjunction with the lifting guide rail and the height adjustment shaft.
[0009] Preferably, the lifting base is fixed to the height adjustment shaft by a height adjustment fixing bolt.
[0010] Preferably, the handle clamping mechanism includes a single handle clamping mechanism and a double handle clamping mechanism.
[0011] Preferably, the single-handle clamping mechanism includes an upper fixing block, a lower fixing block, and a tilt angle adjustment structure. The upper fixing block and the lower fixing block are fixed by fixing bolts, and the lower fixing block is connected to the height adjustment mechanism through the tilt angle adjustment structure.
[0012] Preferably, the dual-handle clamping mechanism includes a dual-handle clamp, an upper fixing block, a lower fixing block, and a tilt angle adjustment structure. The dual-handle clamp is disposed between the upper fixing block and the lower fixing block. The upper fixing block and the lower fixing block are fixed by fixing bolts. The lower fixing block is connected to the height adjustment mechanism through the tilt angle adjustment structure.
[0013] Preferably, the test platform also includes a damage sensing device for monitoring the damage state of the sample.
[0014] Preferably, the damage sensing device is an infrared grating.
[0015] Preferably, the microcomputer controller includes a microcomputer touch screen, a power switch, indicator lights, and an emergency brake button.
[0016] This application has the following advantages:
[0017] In the embodiments of this application, in response to the problems of "inability to accurately adjust frequency and inability to adapt to different standards" in the prior art, this application provides a solution for setting the test frequency using a microcomputer controller and an amplitude adjustment mechanism. Specifically, it includes a microcomputer controller, a test platform, and a height adjustment mechanism, a handle clamping mechanism, and an amplitude adjustment mechanism, all mounted on the test platform. The handle clamping mechanism is installed on the height adjustment mechanism, and the amplitude adjustment mechanism is installed at the bottom of the height adjustment mechanism. The amplitude adjustment mechanism includes a servo motor, an eccentric cantilever, and a lifting shaft. The servo motor is connected to the lifting shaft through the eccentric cantilever, and the microcomputer controller is electrically connected to the servo motor. When the test is started, the servo motor drives the eccentric cantilever to rotate, and the lifting shaft drives the sample held by the handle clamping mechanism to perform vertical reciprocating motion. By setting the test frequency using the microcomputer controller and adjusting the amplitude according to the standard requirements using the amplitude adjustment device, accurate frequency adjustment and multi-standard adaptability are achieved. The adjustable amplitude covers more test requirements, making it easier to operate and set up. The height adjustment device and handle clamping mechanism are suitable for various types of products. Attached Figure Description
[0018] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application 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.
[0019] Figure 1 This is a schematic diagram of the structure of a handle fatigue tester provided in one embodiment of this application;
[0020] Figure 2 This is a structural schematic diagram of a handle fatigue tester (including an amplitude adjustment device perspective view) provided in an embodiment of this application;
[0021] Figure 3 This is a schematic diagram of the amplitude adjustment device provided in one embodiment of this application;
[0022] Figure 4 This is a schematic diagram of the handle clamping mechanism provided in one embodiment of this application;
[0023] Figure 5 This is a schematic diagram of the height adjustment device provided in one embodiment of this application.
[0024] The reference numerals in the accompanying drawings are as follows:
[0025] 1. Microcomputer touch screen display; 2. Power switch; 3. Indicator light; 4. Emergency brake button; 5. Amplitude adjustment mechanism; 5-1. Servo motor; 5-2. Eccentric cantilever; 5-3. Amplitude indicator slider; 5-4. Lifting shaft; 5-5. Amplitude adjustment nut; 6. Damage sensing device; 7. Handle clamping mechanism; 7-1. Double handle clamp; 7-2. Fixing bolt; 7-3. Upper fixing block; 7-4. Lower fixing block; 7-5. Tilting angle adjustment structure; 8. Height adjustment mechanism; 8-1. Lifting bearing; 8-2. Lifting guide rail; 8-3. Height adjustment shaft; 8-4. Lifting base; 8-5. Height adjustment fixing bolt. Detailed Implementation
[0026] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0027] The inventors discovered through analysis of existing technologies that: existing cylinder-driven testing instruments have a movement speed that is greatly affected by air pressure and cannot ensure a consistent up-and-down movement speed; knob-type frequency adjustment cannot accurately set the test frequency; and existing testing instruments lack destructive monitoring and can only perform qualitative measurements; and they lack amplitude adjustment devices and cannot be adapted to different standards.
[0028] Reference Figures 1-5 This application illustrates a handle fatigue tester provided in an embodiment of the present application, including a microcomputer controller, a test platform, and a height adjustment mechanism 8, a handle clamping mechanism 7, and an amplitude adjustment mechanism 5, all disposed on the test platform. The handle clamping mechanism 7 is mounted on the height adjustment mechanism 8, and the amplitude adjustment mechanism 5 is mounted on the bottom end of the height adjustment mechanism 8.
[0029] The amplitude adjustment mechanism 5 includes a servo motor 5-1, an eccentric cantilever 5-2, and a lifting shaft 5-4. The servo motor 5-1 is connected to the lifting shaft 5-4 through the eccentric cantilever 5-2, and the microcomputer controller is electrically connected to the servo motor 5-1.
[0030] When the test is started, the servo motor 5-1 drives the eccentric cantilever 5-2 to rotate, and the lifting shaft 5-4 drives the sample held by the handle clamping mechanism 7 to make vertical reciprocating motion.
[0031] In the embodiments of this application, in contrast to the problem of "inability to accurately adjust frequency and inability to adapt to different standards" in the prior art, this application provides a solution for setting the test frequency using a microcomputer controller and an amplitude adjustment mechanism. Specifically, it includes a microcomputer controller, a test platform, and a height adjustment mechanism 8, a handle clamping mechanism 7, and an amplitude adjustment mechanism 5, all mounted on the test platform. The handle clamping mechanism 7 is mounted on the height adjustment mechanism 8, and the amplitude adjustment mechanism 5 is mounted on the bottom end of the height adjustment mechanism 8. The amplitude adjustment mechanism 5 includes a servo motor 5-1, an eccentric cantilever 5-2, and a lifting shaft 5-4. The servo motor 5-1 is connected to the lifting shaft 5-4 through the eccentric cantilever 5-2, and the microcomputer controller is electrically connected to the servo motor 5-1. When the test is started, the servo motor 5-1 drives the eccentric cantilever 5-2 to rotate, and the lifting shaft 5-4 drives the sample held by the handle clamping mechanism 7 to perform vertical reciprocating motion. The test frequency is set by the microcomputer controller and the amplitude adjustment device 5 is set to adjust the amplitude according to the standard requirements, so as to achieve precise frequency adjustment and multi-standard compatibility. The adjustable amplitude covers more test requirements, is easier to operate and set up. The height adjustment device and handle clamping mechanism are suitable for a variety of products.
[0032] The following will further describe a handle fatigue tester according to various exemplary embodiments of this application.
[0033] In this embodiment, refer to Figure 2 and Figure 3 The eccentric cantilever 52 is provided with an amplitude indicator slider 5-3 and an amplitude adjusting nut 5-5 for adjusting the rotation radius. The amplitude indicator slider 5-3 is connected to the lifting shaft 5-4, and the amplitude adjusting nut 5-5 is connected to the amplitude indicator slider 5-3 through a threaded structure.
[0034] The radius of rotation of the eccentric cantilever 5-2 determines the reciprocating motion amplitude of the lifting shaft 5-4. An amplitude indicator slider 5-3 is mounted on the eccentric cantilever 5-2 to visually indicate the current amplitude position. It is connected to the lifting shaft 5-4, transmitting the rotational motion of the eccentric cantilever 5-2 to the lifting shaft 5-4. The amplitude adjusting nut 5-5 is screwed into the threaded hole of the slider, forming a lead screw mechanism. When the nut is rotated, the reaction force pushes the slider axially because the end face of the nut abuts against the limiting surface of the cantilever end.
[0035] When the amplitude adjusting nut 5-5 is rotated clockwise, the nut moves downward along the thread of the lifting shaft 5-4, pushing the amplitude indicator slider 5-3 towards the far end of the eccentric cantilever 5-2; when rotated counterclockwise, the nut moves upward, and the slider falls back towards the near end of the eccentric cantilever 5-2. The farther the slider is from the center of rotation, the greater the stroke of the lifting shaft 5-4, and the greater the amplitude; the closer the slider is to the center of rotation, the smaller the stroke of the lifting shaft 5-4, and the smaller the amplitude.
[0036] In this embodiment, the height adjustment mechanism 8 includes a lifting bearing 8-1, a lifting guide rail 8-2, a height adjustment shaft 8-3, and a lifting base 8-4. The lifting base 8-4 is connected to the lifting guide rail 8-2 through the lifting bearing 8-1, and the lifting base 8-4 is slidably engaged with the lifting guide rail 8-2 and the height adjustment shaft 8-3.
[0037] It should be noted that the lifting bearing 8-1 reduces friction when the base moves along the guide rail, ensuring smooth lifting; the lifting guide rail 8-2 provides guidance for the movement of the lifting base 8-4, ensuring the direction of movement is vertical. The lifting base 8-4 can slide up and down along the lifting guide rail, and simultaneously move synchronously along the height adjustment axis. The two work together to achieve height adjustment to accommodate samples of different heights.
[0038] As an example, the lifting bearing 8-1 can be a ball bearing or a sliding bearing, and the height adjustment shaft 8-3 can be a smooth shaft or a graduated lead screw.
[0039] In a specific implementation, refer to Figure 2 and Figure 4Two parallel lifting guide rails 82 are fixed on both sides of the lifting base. A lifting bearing sleeve 8-1 is mounted on the lifting guide rail 8-2. The lifting base 8-4 is slidably connected to the lifting guide rail 8-2 via the lifting bearing sleeve 8-1. Two parallel height adjustment shafts 8-3 are positioned between the two lifting guide rails 8-2, vertically penetrating the lifting base 8-4. The height adjustment shafts 8-3 move along the lifting guide rail 8-2 and are fixed by height adjustment fixing bolts 8-5. During testing, the height adjustment fixing bolts 8-5 are loosened, and the lifting base 8-4 is pushed. It slides up or down along the lifting guide rail 8-2 via the lifting bearing 8-1, and simultaneously rises synchronously along the height adjustment shafts 8-3 until the handle clamping mechanism is at the correct height, completing the height adjustment.
[0040] In this embodiment, the handle clamping mechanism 7 includes a single-handle clamping mechanism and a double-handle clamping mechanism. To adapt to single-handle and double-handle cookware and improve the versatility of the equipment, a single-handle test station and a double-handle test station can be set up simultaneously.
[0041] In one specific implementation, a dual-handle clamping mechanism is provided on the left side of the test platform, and a single-handle clamping mechanism is provided on the right side of the test platform.
[0042] In this embodiment, the single-handle clamping mechanism includes an upper fixing block 7-3, a lower fixing block 7-4, and a tilt angle adjustment structure 7-5. The upper fixing block 7-3 and the lower fixing block 7-4 are fixed to 7-2 by fixing bolts. The lower fixing block 7-4 is connected to the height adjustment mechanism 8 through the tilt angle adjustment structure 7-5.
[0043] It should be noted that the handle is clamped between the upper fixing block 7-3 and the lower fixing block 7-4, and the handle is fixed by the fixing bolt 7-2.
[0044] As an example, the lower fixing block 7-4 features a multi-hole design, allowing for adjustment of the upper fixing block 7-3's installation position by selecting different hole positions according to the handle length, ensuring the handle is stably clamped. The tilt angle adjustment structure 7-5 can be adjusted via a hinge, gear, or bolt fine-tuning mechanism.
[0045] In a specific implementation, refer to Figure 5The lower fixing block 7-4 has a first handle placement groove, and several first holes matching the fixing bolts are provided at both ends of the first handle placement groove. The upper fixing block 7-3 has a second handle placement groove, and several second holes matching the fixing bolts are provided at both ends of the second handle placement groove. When testing a single-handled frying pan, the handle of the frying pan is placed in the first handle placement groove of the lower fixing block 7-4. The upper fixing block 7-3 is used to fix the front end of the frying pan handle, and the other upper fixing block 7-3 is used to fix the rear end of the frying pan handle. The upper fixing block 7-3 and the lower fixing block 7-4 are fixed by fixing bolts to lock the handle in place.
[0046] In this embodiment, the dual-handle clamping mechanism includes a dual-handle clamp 7-1, an upper fixing block 7-3, a lower fixing block 7-4, and a tilt angle adjustment structure 7-5. The dual-handle clamp 7-1 is disposed between the upper fixing block 7-3 and the lower fixing block 7-4. The upper fixing block 7-3 and the lower fixing block 7-4 are fixed by fixing bolts 7-2. The lower fixing block 7-4 is connected to the height adjustment mechanism 8 through the tilt angle adjustment structure 7-5.
[0047] It should be noted that the double-handle clamp 7-1 is placed between the upper fixing block 7-3 and the lower fixing block 7-4, and the handles are fixed by the fixing bolts 7-2. The double-handle clamp 7-1 is used to clamp the double-handle sample.
[0048] In a specific implementation, refer to Figure 2 and Figure 4 The double-handle clamping mechanism has an additional double-handle clamp compared to the single-handle clamping mechanism. The double-handle clamp 7-1 includes a clamp handle, a clamping rod, and a handle hook. The clamp handle is set perpendicular to the clamping rod. The two handle hooks are adjustable and set on the clamping rod to accommodate double-handle samples of different widths. The clamp handle is located between the upper fixed block and the lower fixed block and is fixed by a fixing bolt.
[0049] In this embodiment, a damage sensing device 6 is also provided on the test platform for monitoring the damage state of the sample.
[0050] As an example, the destruction sensing device 6 can be installed on the side or below the sample movement path. It can monitor whether the sample is damaged during the test in real time and transmit the signal to the microcomputer controller to trigger the equipment to stop and record the number of tests when damage occurs. This solves the problem that the existing technology can only perform qualitative tests and has no destruction monitoring.
[0051] In one specific implementation, the destruction sensing device 6 is an infrared grating, with the transmitting and receiving ends of the infrared grating installed on both sides of the test platform, and the beam height covering the handle movement area.
[0052] In this embodiment, the microcomputer controller includes a microcomputer touch screen 1, a power switch 2, an indicator light 3, and an emergency brake button 4.
[0053] It should be noted that the microcomputer touch screen 1 is the main operating interface, used to set test parameters, such as frequency, number of times, whether to enable damage monitoring, display operating status and fault information, etc.; the power switch 2 controls the total power supply of the equipment; the indicator lights 3 indicate the equipment status through different colors; the emergency stop button 4 is used to force a shutdown in case of emergencies to ensure the safety of equipment and personnel.
[0054] Working principle:
[0055] Handle fatigue testing instrument: After turning on the power switch, the handle clamping mechanism 7 is reset to its lowest initial position via the reset function of the microcomputer touch screen 1. Then, the amplitude adjustment mechanism 5 is adjusted according to the standard, and the height adjustment mechanism 8 is adjusted according to the sample height. The sample is then fixed on the handle clamping mechanism 7. The target number of tests, test frequency, and whether destructive monitoring is required are set via the microcomputer touch screen 1. After setting the parameters, the corresponding station is selected according to the sample installation position, and the "Start" button is clicked to begin the test. The sample, adjustable handle clamping mechanism 7, lifting base 8-4, and height adjustment shaft 8-3, as a whole, move up and down on the lifting guide rail 8-2 via the lifting bearing 8-1 at the set speed and number of tests. If the destructive sensing device 6 detects a destructive obstruction grating on the product, the instrument will automatically stop and record the number of destructive tests. If no destructive tests occur, the instrument will stop after running to the set number of tests, the sample will be removed, and the instrument will be turned off. This instrument can comprehensively meet the fatigue testing requirements of cookware handles.
[0056] Amplitude adjustment mechanism 5: By adjusting the amplitude adjustment nut, the amplitude indicator slider moves up and down on the eccentric cantilever. During the rotation of the servo motor, the output rotation radius changes, which ultimately changes the up and down movement distance of the lifting shaft.
[0057] Adjustable handle clamping mechanism 7: Based on the length and size of the sample handle, the upper fixing block is fixed to the appropriate position of the lower fixing block with multiple holes using fixing bolts, ensuring that the sample will not loosen during testing. The angle is adjusted to ensure that the bottom of the product is flush with the equipment table surface.
[0058] Height adjustment mechanism 8: Based on the product height, the lifting base is fixed at different heights on the height adjustment shaft using height adjustment fixing bolts to ensure that the product will not collide with the equipment platform during lifting.
[0059] This handle fatigue tester is applicable to standards including EN 12983, EN 13834, CBA, GB / T32432, etc.
[0060] This equipment can solve the problems of precise frequency tuning, damage monitoring, and multi-standard compatibility. The test frequency is set through a microcomputer controller, and infrared monitoring detects sample damage. The adjustable amplitude covers more test requirements, and it is easier to operate. It is suitable for fatigue testing of more types of cookware handles and simple pressing and opening fatigue testing of other products.
[0061] Example 1
[0062] Example of use: Pot handle fatigue test
[0063] Test sample: Stainless steel pot
[0064] Test standard: EN 12983-1
[0065] Test steps:
[0066] 1. Measure the height of the pot handle;
[0067] 2. Measure the volume of the pot and load it with a sandbag weight that is 1.5 times the weight of water;
[0068] 3. Turn on the power and reset the adjustable handle clamping device to the lowest initial position;
[0069] 4. The height adjustment device is set to H+1mm.
[0070] 5. Secure the stainless steel pot on the adjustable handle clamping device;
[0071] 6. Set the test frequency on the microcomputer controller to 25 times / minute and the number of tests to 15,000. Activate the damage monitoring device.
[0072] 7. Click the "Start" button to begin the test;
[0073] 8. The equipment starts running;
[0074] 9. If the damage sensing device detects damage to the product and blocks the grating, the device will automatically stop and record the number of damages. If no damage occurs, the device will stop after running for the set number of times. Remove the sample and turn off the instrument.
[0075] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.
[0076] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.
[0077] The above provides a detailed description of a handle fatigue tester provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. A handle fatigue tester, characterized in that, It includes a microcomputer controller, a test platform, and a height adjustment mechanism, a handle clamping mechanism, and an amplitude adjustment mechanism, all of which are located on the test platform. The handle clamping mechanism is installed on the height adjustment mechanism, and the amplitude adjustment mechanism is installed at the bottom end of the height adjustment mechanism. The amplitude adjustment mechanism includes a servo motor, an eccentric cantilever, and a lifting shaft. The servo motor is connected to the lifting shaft through the eccentric cantilever, and the microcomputer controller is electrically connected to the servo motor. When the test is started, the servo motor drives the eccentric cantilever to rotate, and the lifting shaft drives the sample held by the handle clamping mechanism to perform vertical reciprocating motion.
2. The handle fatigue tester according to claim 1, characterized in that, The eccentric cantilever is equipped with an amplitude indicator slider and an amplitude adjusting nut for adjusting the rotation radius. The amplitude indicator slider is connected to the lifting shaft, and the amplitude adjusting nut is connected to the amplitude indicator slider through a threaded structure.
3. The handle fatigue tester according to claim 1, characterized in that, The height adjustment mechanism includes a lifting bearing, a lifting guide rail, a height adjustment shaft, and a lifting base. The lifting base is connected to the lifting guide rail via the lifting bearing, and the lifting base slides in conjunction with the lifting guide rail and the height adjustment shaft.
4. The handle fatigue tester according to claim 3, characterized in that, The lifting base is fixed to the height adjustment shaft by a height adjustment fixing bolt.
5. The handle fatigue tester according to claim 1, characterized in that, The handle clamping mechanism includes a single handle clamping mechanism and a double handle clamping mechanism.
6. The handle fatigue tester according to claim 5, characterized in that, The single-handle clamping mechanism includes an upper fixing block, a lower fixing block, and a tilt angle adjustment structure. The upper fixing block and the lower fixing block are fixed by fixing bolts, and the lower fixing block is connected to the height adjustment mechanism through the tilt angle adjustment structure.
7. The handle fatigue tester according to claim 5, characterized in that, The dual-handle clamping mechanism includes a dual-handle clamp, an upper fixed block, a lower fixed block, and a tilt angle adjustment structure. The dual-handle clamp is located between the upper fixed block and the lower fixed block. The upper fixed block and the lower fixed block are fixed by fixing bolts. The lower fixed block is connected to the height adjustment mechanism through the tilt angle adjustment structure.
8. The handle fatigue tester according to claim 1, characterized in that, It also includes a damage sensing device located on the test platform for monitoring the damage state of the sample.
9. The handle fatigue tester according to claim 8, characterized in that, The damage sensing device is an infrared grating.
10. The handle fatigue tester according to claim 1, characterized in that, The microcomputer controller includes a microcomputer touch screen, a power switch, indicator lights, and an emergency brake button.