A tempered glass plate strength detection device
By introducing a protective box and multi-angle cameras into the tempered glass testing device, the problems of fragmentation and blind spots in observation are solved, enabling safe, real-time, and automated glass strength testing.
Patent Information
- Application Number
- CN202611085567.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-21
- Publication Date
- 2026-08-25
AI Technical Summary
Existing tempered glass strength testing devices have problems such as safety hazards from flying fragments, blind spots in observation, and inconvenience in cleaning during the testing process, and they cannot achieve real-time recording and automated testing.
A detection device was designed, comprising a protective box, a hydraulic push rod, a pressure sensor, and a camera. The device prevents debris from splashing by sealing the detection chamber, records the damage process from multiple angles by a multi-angle camera, and achieves automated detection and data display through a controller.
It improves detection safety, eliminates blind spots in observation, enables real-time recording and automated detection, and reduces human error.
Smart Images
Figure CN122631444A_ABST
Abstract
Description
Technical Field
[0001] This invention is a tempered glass plate strength testing device, belonging to the field of glass plate strength testing. Background Technology
[0002] Tempered glass, with its high strength, good impact resistance, and ability to shatter into blunt-angled fragments that are less likely to cause cuts, is widely used in building doors and windows, furniture, automobiles, and home appliances. Before leaving the factory, tempered glass sheets must undergo strength testing to determine if their resistance to static pressure and cracking under pressure meets standards. This ensures product quality control and avoids safety hazards caused by spontaneous breakage or shattering during later use. Therefore, tempered glass strength testing equipment is an indispensable specialized device in the glass production quality inspection process.
[0003] Currently, conventional tempered glass strength testing devices on the market have many shortcomings in actual use. For example, most traditional testing equipment only has simple barriers or no closed protective structure. When the glass breaks under hydraulic pressure, sharp glass fragments are easily scattered everywhere, which can easily cut the operators on site and pose a major safety hazard. Although some equipment is equipped with a protective box, there is no sealing and pressing structure on the top of the box. Glass fragments can still be ejected outward from the box along the gaps, resulting in poor protection. At the same time, the broken glass fragments are scattered and messy, making cleaning time-consuming and labor-intensive. The lack of a centralized collection structure increases the amount of manual cleaning work.
[0004] Furthermore, the detection and observation methods have visual blind spots, making it impossible to fully record the damage process. Relying solely on manual observation of the internal detection area of the enclosure, blind spots exist on the back and sides of the glass when it is under pressure. It is difficult to fully capture the complete process of crack initiation, extension, and expansion until the entire glass breaks. There is no real-time image retention function, and the glass damage status can only be subjectively judged by the staff on-site. It is impossible to retain visual detection records, and it is impossible to review the cracking and fracture morphology of the glass later. It is also difficult to accurately trace the internal quality defects of tempered glass. Therefore, this invention proposes a novel tempered glass plate strength testing device. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a device for testing the strength of tempered glass plates.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A tempered glass plate strength testing device includes a workbench, a protective box fixed to the top of the workbench, a mounting frame fixed to one side of the workbench, a hydraulic push rod fixed to the top of the mounting frame, a lifting plate fixed to the bottom of the output of the hydraulic push rod, a cover plate at the bottom of the lifting plate, multiple telescopic rods (first type) fixed between the lifting plate and the mounting frame, multiple telescopic rods (second type) fixed between the lifting plate and the cover plate, a through rod fixed to the middle of the bottom end of the lifting plate, a pressure sensor mounted on the bottom end of the through rod with screws, a detection rod fixed to the bottom side of the pressure sensor, multiple compression springs installed between the lifting plate and the cover plate, and a camera assembly mounted at the bottom of the through rod. The camera assembly includes multiple cameras, mounting posts fixed to the housings of the cameras with screws, and wire tubes fixed to the housings of the cameras and the pressure sensor. The pressure sensor and the cameras are electrically connected to a controller via wires, and the controller is electrically connected to a display. The wires pass through the wire tubes. The protective box contains clamping components for clamping the tempered glass plate, and a drive component for connecting the clamping components is provided on the workbench.
[0007] Furthermore, mounting plates are fixed at both the top and bottom of the compression spring, and the mounting plates are fixed between the lifting plate and the mounting frame with screws.
[0008] Furthermore, the protective box is divided into an upper working box and a lower collection box. The lower collection box has an insertable collection drawer, and the internal space of the lower collection box is larger than that of the upper working box.
[0009] Furthermore, the guide tube slides through the cover plate, and a fixing component is fixed at the top of the guide tube. The fixing component consists of interlocking plug blocks. A clamping groove for clamping the guide tube is formed on the inner side of the plug blocks. The plug blocks are fixed with screws, and the plug blocks are fixed to the top of the guide tube with screws.
[0010] Furthermore, the driving component includes a drive motor mounted on the worktable, a dual-axis lead screw rotatably connected to the worktable via bearings, the output end of the drive motor connected to the dual-axis lead screw, two movable plates with opposite threads on the dual-axis lead screw, and an adjustment plate fixedly mounted on the movable plates.
[0011] Furthermore, the clamping component includes two L-shaped clamping plates located inside the protective box. Each L-shaped clamping plate has a through plate fixed on its back, and the other end of the through plate extends out of the protective box and is connected to a corresponding adjusting plate.
[0012] Furthermore, soft rubber pads are attached to the inner sides of the L-shaped clamping plates. One of the through plates consists of a lower arrangement plate and an upper sealing plate. A secondary pressure sensor is installed inside the lower arrangement plate with screws. Circular grooves are opened on both the L-shaped clamping plates and the corresponding rubber pads. The probe of the secondary pressure sensor is located in the circular groove. A through groove is opened on the lower arrangement plate for the wire of the secondary pressure sensor to pass through. A pressure plate matching the through groove is fixed on the upper sealing plate.
[0013] Furthermore, multiple lights are installed at the bottom of the cover, which illuminate the inner wall of the protective box, and anti-glare components are installed on the camera housing.
[0014] Furthermore, the anti-glare component includes a mounting plate, a polarizing filter is provided on the inner side of the mounting plate, an internal thread mounting groove is provided on the camera housing, an external thread is provided on the outer side of the mounting plate, the mounting plate is spirally installed in the internal thread mounting groove, and multiple knob rods are fixed on the mounting plate.
[0015] Furthermore, an electric push rod is installed on the back of the mounting frame, and a support plate is provided at the output end of the electric push rod. The support plate is a smooth steel plate, and a support groove is provided on the protective box for the support plate to pass through.
[0016] The beneficial effects of this invention are: The workbench carries all the testing, clamping, and driving components, while the protective box surrounds the tempered glass testing station, forming a closed testing chamber. When the tempered glass is crushed, the fragments are blocked by the protective box, preventing flying debris from injuring people, improving the safety of the testing operation, and facilitating the centralized collection of broken glass.
[0017] Using a hydraulic push rod as a linear power source, this system is used for static pressure failure testing of tempered glass. The hydraulic push rod drives the lifting plate to rise and fall directly. The lifting plate is connected to the cover plate via a compression spring, thus causing the cover plate to descend and cover the top of the protective box. At this time, the hydraulic push rod continues to descend, causing the lifting plate to continue descending and compressing the compression spring. This allows the connected cover plate to be pressed more firmly against the protective box, effectively preventing broken glass from splashing outside the protective box after the tempered glass breaks, thus improving operational safety.
[0018] The glass continues to descend via a lifting platform, which in turn lowers the through rod, pressure sensor, and camera. The tempered glass is then pressed down by a detection rod until it shatters, completing the strength test. The controller displays the pressure sensor signal on a monitor. During the test, the camera continuously captures video of the tempered glass, which is then projected onto the monitor for easy viewing by staff. This invention's pressure sensor accurately collects pressure values throughout the entire process of glass compression, enabling two testing modes: one is pressurizing until the glass breaks and recording the breaking strength; the other is pressurizing to a preset pressure and holding it to observe for cracks, thus testing fatigue resistance and pressure resistance. The testing method is flexible.
[0019] Multiple cameras are fixed to the lower part of the through rod by mounting columns and arranged around the pressure sensor. The signal wires of the sensor and camera are wrapped in the wire tube. Multiple cameras simultaneously capture images of the glass pressure area from multiple directions, eliminating blind spots and completely recording the entire process of crack generation, propagation and fragmentation. The images are transmitted to the monitor in real time, allowing staff to intuitively observe the damage pattern. The wire tube protects the signal wires from being cut by flying glass, avoiding short circuits and signal interruptions, improving the durability and detection stability of the equipment. The wire tube can slide through the cover plate and move up and down with the lifting plate without pulling the cables.
[0020] The controller receives pressure signals from pressure sensors and video signals from cameras, performs data analysis, and displays pressure values and real-time video footage simultaneously on the monitor. The pressure data is presented digitally and intuitively, and the critical pressure for tempered glass breakage can be accurately read. The video can be played back simultaneously, facilitating the review of glass fracture defects and crack distribution, and assisting in the analysis of tempered glass quality defects. The controller can preset pressure thresholds, automatically stopping the machine when the set load is reached, realizing automated pressure holding detection and reducing human operation errors. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a front view of a tempered glass plate strength testing device according to the present invention; Figure 2 This is a schematic diagram of the through rod of a tempered glass plate strength testing device according to the present invention; Figure 3 This is a schematic diagram of a camera in a tempered glass plate strength testing device according to the present invention; Figure 4 This is a schematic diagram of the anti-glare component of a tempered glass plate strength testing device according to the present invention; Figure 5 This is a schematic diagram of the insertion block of a tempered glass plate strength testing device according to the present invention; Figure 6 This is a schematic diagram of the protective box of a tempered glass plate strength testing device according to the present invention; Figure 7 This is a schematic diagram of the clamping component of a tempered glass plate strength testing device according to the present invention; Figure 8 This is a schematic diagram of the rubber pad of a tempered glass plate strength testing device according to the present invention; Figure 9 This is a schematic diagram of the support plate of a tempered glass plate strength testing device according to the present invention.
[0023] In the diagram, 1. Workbench; 2. Protective box; 3. Mounting frame; 4. Hydraulic push rod; 5. Lifting plate; 6. Cover plate; 7. Telescopic rod one; 8. Telescopic rod two; 9. Through rod; 10. Pressure sensor; 11. Compression spring; 12. Camera; 13. Mounting column; 14. Wire tube; 15. Controller; 16. Display; 17. Mounting plate; 18. Upper work box; 19. Lower collection box; 20. Collection drawer; 21. Connecting block; 22. Drive motor; 3. Dual-axis lead screw; 24. Moving plate; 25. Adjusting plate; 26. L-shaped clamping plate; 27. Through plate; 28. Lower arrangement plate; 29. Upper sealing plate; 30. Secondary pressure sensor; 31. Circular groove; 32. Through groove; 33. Pressure plate; 34. Clamping groove; 35. Rubber pad; 36. Lighting lamp; 37. Mounting cylinder; 38. Polarizing filter; 39. Internal thread mounting groove; 40. Knob rod; 41. Electric push rod; 42. Support plate; 43. Support slide. Detailed Implementation
[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0025] Please see Figure 1-9This invention provides a tempered glass plate strength testing device, including a workbench 1, a protective box 2 fixedly mounted on the top of the workbench 1, a mounting frame 3 fixedly mounted on one side of the workbench 1, a hydraulic push rod 4 fixedly mounted on the top of the mounting frame 3, a lifting plate 5 fixedly mounted on the bottom of the output of the hydraulic push rod 4, a cover plate 6 mounted on the bottom of the lifting plate 5, multiple telescopic rods 7 fixed between the lifting plate 5 and the mounting frame 3, multiple telescopic rods 8 fixed between the lifting plate 5 and the cover plate 6, a through rod 9 fixedly mounted in the middle of the bottom end of the lifting plate 5, a pressure sensor 10 mounted on the bottom end of the through rod 9 with screws, and a detection rod fixed to the bottom side of the pressure sensor 10. Multiple compression springs 11 are installed between the cover plate 6 and the through rod 9. A camera assembly is also installed at the bottom of the through rod 9. The camera assembly includes multiple cameras 12. Mounting posts 13 are fixed on the housing of the cameras 12. The mounting posts 13 are fixed on the through rod 9 with screws. Wire tubes 14 are fixed on the housing of the cameras 12 and the housing of the pressure sensor 10. The pressure sensor 10 and the cameras 12 are electrically connected to the controller 15 through wires. The controller 15 is electrically connected to the display 16. The wires pass through the wire tubes 14. The protective box 2 has clamping components for clamping tempered glass plates. The worktable 1 is equipped with a drive component for connecting the clamping components.
[0026] See Figure 1-2 The compression spring 11 is fixed with mounting plates 17 at both the top and bottom. The mounting plates 17 are fixed between the lifting plate 5 and the mounting frame 3 with screws. The compression spring 11 is installed with the mounting plates 17. Therefore, the compression spring is detachable. During operation, the compression spring 11 is compressed for a long time and then undergoes compression and reset. Over time, the elasticity of the compression spring 11 decreases, so it needs to be replaced to ensure the normal operation of the device.
[0027] See Figure 1 , Figure 6 and Figure 9 The protective box 2 is divided into an upper working box 18 and a lower collecting box 19. A collecting drawer 20 is inserted into the lower collecting box 19. The internal space of the lower collecting box 19 is larger than that of the upper working box 18. The collecting drawer 20 is pulled out and installed inside the larger lower collecting box 19. Therefore, when broken glass occurs inside the upper working box 18, the broken glass can fall into the large collecting drawer 20. The structure design with a larger internal space provides sufficient area for the scattered broken glass, ultimately forming a stepped dropping space that is narrow at the top and wide at the bottom. When the broken glass falling from the upper working box 18 disperses to the surroundings during the falling process, it will not be blocked or retained by the side wall of the lower collecting box 19, and all of it will fall into the lower collecting drawer.
[0028] See Figure 1 , Figure 3 and Figure 4The wire tube 14 slides through the cover plate 6, and a fixing component is fixed at the top of the wire tube 14. The fixing component consists of interlocking plug blocks 21. The inner side of the plug block 21 forms a clamping groove 34 for clamping the wire. The plug blocks 21 are fixed with screws and are fixed at the top of the wire tube 14. The wire tube 14 is designed to protect the wires during passage, preventing broken glass from splashing onto the wires and cutting them, avoiding short circuits and signal interruptions, and improving the durability and detection stability of the equipment. After the wire passes through the head of the wire tube 14, the plug block 21 is installed. The clamping groove 34 on the inner side of the plug block 21 can clamp the head of the wire, preventing the connection instability at the connection point between the wire and the pressure sensor 10 and camera 12 due to the dragging of the wire when the through rod 9, pressure sensor 10, and camera 12 are raised and lowered, thus ensuring the working stability of the pressure sensor 10 and camera 12.
[0029] See Figure 1 , Figure 7 and Figure 8The driving components include a drive motor 22 mounted on the worktable 1. A dual-axis lead screw 23 is rotatably connected to the worktable 1 via bearings. The output end of the drive motor 22 is connected to the dual-axis lead screw 23. Two moving plates 24 are threaded in opposite directions on the dual-axis lead screw 23. An adjusting plate 25 is fixedly mounted on the moving plate 24. The clamping components include two L-shaped clamping plates 26 located inside the protective box 2. A through plate 27 is fixedly mounted on the back of each L-shaped clamping plate 26. The other end of the through plate 27 extends out of the protective box 2 and is connected to the corresponding adjusting plate 25. Soft rubber pads 35 are attached to the inner surfaces of each L-shaped clamping plate 26. A through plate 27 consists of a lower arrangement plate 28 and an upper sealing plate 29. A secondary pressure sensor 30 is installed inside the lower arrangement plate 28 with screws. Both the L-shaped clamping plate 26 and the corresponding rubber pad 35 have circular grooves 31. The probe of the secondary pressure sensor 30 is located within the circular groove 31. A through groove 32 is provided on the lower arrangement plate 28 for the wire of the secondary pressure sensor 30 to pass through. A pressure plate 33 matching the through groove 32 is fixed on the upper sealing plate 29. The drive motor 22 can drive the dual-axis lead screw 23 to rotate, thereby causing the two moving plates 24 to move away from or towards each other, thus achieving… Two adjusting plates 25 move away from or towards each other. The adjusting plates 25 are connected to a through plate 27, which in turn is connected to an L-shaped clamping plate 26. Ultimately, this causes the L-shaped clamping plates 26 to move away from or towards each other. The L-shaped clamping plates 26 provide better support and clamping for tempered glass sheets of different sizes, ensuring stable strength testing of the tempered glass sheet during downward pressure. The secondary pressure sensor 30 is detachable; if it is damaged, it can be disassembled for repair or replacement. The L-shaped clamping plates 26 move away from or towards each other. When the glass plate is in motion, the soft rubber pads 35 on the L-shaped clamping plate 26 clamp the two ends of the tempered glass plate first. Then, the soft rubber pads 35 slowly deform, allowing the probe of the secondary pressure sensor 30 to contact the tempered glass plate. Only then can the probe complete the clamping pressure detection of the tempered glass plate. The controller internally presets the pressure value of the secondary pressure sensor 30 to better control the clamping force of the tempered glass plate, preventing excessive clamping force from causing invisible micro-cracks inside the glass, ensuring that the subsequent pressure strength detection data is true and valid. The soft rubber pads 35 prevent rigid clamping from scratching the glass edges.
[0030] See Figure 2Multiple lights 36 are installed at the bottom of the cover plate 6, illuminating the inner wall of the protective box 2. An anti-glare assembly is installed on the housing of the camera 12, including a mounting plate 37. A polarizing filter 38 is disposed inside the mounting plate 37. An internal threaded mounting groove 39 is formed on the housing of the camera 12, and the mounting plate 37 has external threads on its outer side. The mounting plate 37 is spirally installed within the internal threaded mounting groove 39. Multiple knobs 40 are fixedly mounted on the mounting plate 37. The lights 36 illuminate the interior of the protective box 2, and the inner wall of the protective box 2 has a matte finish. To ensure clearer internal camera footage, the housing of the lighting lamp 36 is a soft-light diffuser to disperse direct, strong light. The lamp is also angled towards the inner wall of the protective housing 2 to prevent the light from directly hitting the glass surface. By rotating the knob 40, the operator can screw the mounting plate 37 into the internal threaded mounting slot 39, adding a polarizing filter to filter reflected light from the glass surface while preserving the transmitted image from the glass itself. The lighting brightness can be adjusted with the controller to reduce glare from direct strong light, balance image exposure, reduce glass bright spots, and ensure clear video footage captured by the camera.
[0031] See Figure 9 An electric push rod 41 is installed on the back of the mounting frame 3. The output end of the electric push rod 41 is equipped with a support plate 42, which is a smooth steel plate. The protective box 2 has a support groove 43 for the support plate 42 to pass through. The electric push rod 41 pushes the support plate 42 into the protective box 2, and the glass plate is placed on the support plate 42. Then, the glass plate is clamped by the L-shaped clamping plate 26 and the rubber pad 35. Then the support plate 42 is retracted. After the support plate 42 is retracted, its end is still left in the support groove 43, which can seal the gap of the support groove 43. This structure ensures that before clamping the glass, it is not necessary for personnel to manually support the glass, thus facilitating the strength testing work of the staff.
[0032] In use, the workbench 1 carries all the testing, clamping, and driving components, while the protective box 2 surrounds the tempered glass testing station, forming a closed testing chamber. When the tempered glass breaks under pressure, the fragments are blocked by the protective box 2, preventing flying debris from injuring people and improving the safety of the testing operation. It also facilitates the centralized collection of broken glass. The hydraulic push rod 4 serves as a linear power source for the static pressure test of tempered glass strength. The hydraulic push rod 4 drives the lifting plate 5 to move up and down directly. The lifting plate 5 is connected to the cover plate 6 via a compression spring 11, thus causing the cover plate 6 to descend and cover the top of the protective box 2. At this time, the hydraulic push rod 4 continues to descend, causing the lifting plate 5 to continue descending and compressing the compression spring 11, thus pressing the connected cover plate 6 more firmly against the protective box 2. To effectively prevent broken tempered glass from splashing outside the protective box 2 after breakage, thus improving operational safety, the lifting plate 5 continues to descend. This lifting plate 5, along with the through rod 9, pressure sensor 10, and camera 12, descends together. During this process, the tempered glass is pressed down by the detection rod until it shatters, completing the strength test. The controller 15 then displays the signal from the pressure sensor 10 on the display 16. Simultaneously, the camera 12 captures real-time images of the tempered glass and projects the video onto the display 16, allowing workers to easily monitor the strength test results. The pressure sensor 10 of this invention accurately collects pressure values throughout the entire process of glass compression. The system implements two detection modes: one is pressurizing until the glass breaks and recording the ultimate strength of the breakage; the other is pressurizing to a preset pressure and holding it to observe whether cracks appear in the glass, thus testing its fatigue resistance and pressure bearing capacity. The detection method is flexible. Multiple cameras 12 are fixed to the lower part of the through rod 9 via mounting posts 13 and arranged around the pressure sensor 10. A guide tube 14 is fitted with the signal transmission wires for the sensors and cameras. The multi-directional cameras 12 simultaneously capture images of the glass under pressure, eliminating blind spots and completely recording the entire process of crack initiation, propagation, and breakage. The images are transmitted in real-time to the monitor 16, allowing staff to visually observe the damage pattern. The guide tube 14 protects the signal wires, preventing flying glass from cutting them, avoiding short circuits and signal interruptions, and improving equipment durability and detection stability. The guide tube 14 can slide through the cover plate 6, adapting to the lifting plate 5 for up and down movement without pulling on the cable. The controller 15 receives pressure signals from the pressure sensor 10 and video signals from the camera, performs data analysis, and the display 16 simultaneously shows the pressure values and real-time video footage. The pressure data is digitally and intuitively displayed, accurately reading the critical pressure for tempered glass breakage. Simultaneous video playback facilitates later review of glass fracture defects and crack distribution, aiding in the analysis of tempered glass quality defects. The controller can preset pressure thresholds, automatically stopping the machine when a set load is reached, achieving automated pressure holding detection and reducing human error. It should be noted that the guide tube 14 descends along with the through rod 9; after the tempered glass plate breaks, both the through rod 9 and the guide tube 14 stop descending synchronously.At this point, the top of the guide tube 14 will not detach from the penetration point of the cover plate 6.
[0033] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A device for testing the strength of tempered glass plates, characterized in that, The system includes a workbench (1), a protective box (2) fixedly mounted on the top of the workbench (1), a mounting frame (3) fixedly mounted on one side of the workbench (1), a hydraulic push rod (4) fixedly mounted on the top of the mounting frame (3), a lifting plate (5) fixedly mounted at the bottom of the output of the hydraulic push rod (4), a cover plate (6) mounted at the bottom of the lifting plate (5), multiple telescopic rods (7) fixed between the lifting plate (5) and the mounting frame (3), multiple telescopic rods (8) fixed between the lifting plate (5) and the cover plate (6), a through rod (9) fixedly mounted at the middle of the bottom of the lifting plate (5), a pressure sensor (10) mounted on the bottom of the through rod (9) with screws, a detection rod fixed on the bottom side of the pressure sensor (10), and multiple compression springs (11) mounted between the lifting plate (5) and the cover plate (6). A camera assembly is also installed at the bottom of the through rod (9). The camera assembly includes multiple cameras (12). A mounting post (13) is fixed on the housing of the camera (12). The mounting post (13) is fixed on the through rod (9) with screws. A wire tube (14) is fixed on the housing of the camera (12) and the housing of the pressure sensor (10). The pressure sensor (10) and the camera (12) are electrically connected to the controller (15) through wires. The controller (15) is electrically connected to the display (16). The wires pass through the wire tube (14). The protective box (2) has a clamping device for clamping the tempered glass plate. A drive device for connecting the clamping device is provided on the worktable (1).
2. The tempered glass plate strength testing device according to claim 1, characterized in that, The top and bottom ends of the compression spring (11) are both fixed with mounting plates (17), which are fixed between the lifting plate (5) and the mounting bracket (3) with screws.
3. The tempered glass plate strength testing device according to claim 2, characterized in that, The protective box (2) is divided into an upper working box (18) and a lower collection box (19). The lower collection box (19) has a collection drawer (20) installed inside. The internal space of the lower collection box (19) is larger than that of the upper working box (18).
4. The tempered glass plate strength testing device according to claim 3, characterized in that, The wire tube (14) slides through the cover plate (6), and a fixing member is fixed at the top of the wire tube (14). The fixing member consists of plug-in blocks (21) that are inserted into each other. A clamping groove (34) for clamping the wire is formed on the inner side of the plug-in block (21). The plug-in block (21) is fixed with screws, and the plug-in block (21) is fixed at the top of the wire tube (14) with screws.
5. The tempered glass plate strength testing device according to claim 4, characterized in that, The driving component includes a drive motor (22) mounted on the worktable (1), a double-axis lead screw (23) rotatably connected to the worktable (1) via bearings, the output end of the drive motor (22) is connected to the double-axis lead screw (23), two moving plates (24) are fitted on the double-axis lead screw (23) with opposite threads, and an adjustment plate (25) is fixedly mounted on the moving plate (24).
6. The tempered glass plate strength testing device according to claim 5, characterized in that, The clamping component includes two L-shaped clamping plates (26) located inside the protective box (2). Each L-shaped clamping plate (26) has a through plate (27) fixed on its back. The other end of the through plate (27) extends out of the protective box (2) and is connected to the corresponding adjusting plate (25).
7. The tempered glass plate strength testing device according to claim 6, characterized in that, The inner sides of the L-shaped clamping plate (26) are all covered with soft rubber pads (35). One of the through plates (27) consists of a lower arrangement plate (28) and an upper sealing plate (29). The lower arrangement plate (28) is fitted with screws to install a secondary pressure sensor (30). The L-shaped clamping plate (26) and the corresponding rubber pad (35) are both provided with circular grooves (31). The probe of the secondary pressure sensor (30) is located in the circular groove (31). The lower arrangement plate (28) is provided with a through groove (32) for the wire of the secondary pressure sensor (30) to pass through. The upper sealing plate (29) is fixed with a pressure plate (33) that matches the through groove (32).
8. The tempered glass plate strength testing device according to claim 7, characterized in that, Multiple lights (36) are installed at the bottom of the cover plate (6), and the lights (36) shine towards the inner wall of the protective box (2). Anti-glare components are installed on the housing of the camera (12).
9. The tempered glass plate strength testing device according to claim 8, characterized in that, The anti-glare component includes a mounting plate (37), a polarizing filter (38) is provided on the inner side of the mounting plate (37), an internal thread mounting groove (39) is provided on the housing of the camera (12), the mounting plate (37) has an external thread on the outer side, the mounting plate (37) is spirally installed in the internal thread mounting groove (39), and multiple knob rods (40) are fixed on the mounting plate (37).
10. A tempered glass plate strength testing device according to claim 9, characterized in that, The back of the mounting frame (3) is equipped with an electric push rod (41). The output end of the electric push rod (41) is equipped with a support plate (42). The support plate (42) is a smooth steel plate. The protective box (2) has a support groove (43) for the support plate (42) to pass through.