Device for detecting strength of transparent drawer of refrigerator

Abstract

A refrigerator transparent drawer strength detection device disclosed by the present invention comprises a conveying belt, the top end of the conveying belt is symmetrically provided with mounting racks, the top ends of the two mounting racks are provided with a mounting plate, the top end of the mounting plate is provided with an air cylinder, and the output end of the air cylinder penetrates through the top end of the mounting plate and is electrically connected with the top end of a detection assembly. A connecting plate is installed at the bottom end of the detection assembly, a plurality of inserting grooves are formed in the bottom end of the connecting plate in an array mode, a plurality of connecting columns are arranged at the bottom end of the connecting plate, silica gel protruding blocks are installed at the bottom ends of the connecting columns, and a connecting plate is installed at the top end of the connecting plate; an image acquisition device is installed on the vertical outer wall, close to the silica gel convex block, of the connecting plate, and the image acquisition device is electrically connected with a refrigerator transparent drawer strength detection system. Through deep fusion of pressure detection and image analysis, a dual verification system of pressure data and deformation data is constructed; and the detection precision and the result reliability are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of refrigerator transparent drawer processing technology, specifically to a refrigerator transparent drawer strength testing device. Background Technology

[0002] The background technology of transparent refrigerator drawers encompasses several key areas, including materials, structural design, and functional requirements. In terms of materials, early designs primarily used polystyrene (PS) plastic, which, while possessing excellent electrical insulation, colorless transparency, and high light transmittance, suffered from low-temperature brittleness. It was subsequently replaced by superior transparent plastics such as polycarbonate (PC). Tempered glass, with its excellent wear resistance and light transmittance, became a significant choice, accounting for 68.5% of transparent drawer applications. Smart dimming glass technology also entered the market, allowing for electronic switching between transparent and frosted states, balancing visibility and privacy. Regarding structural design, early designs incorporated reinforcing ribs on both sides of the drawer to improve load-bearing capacity, but this compromised aesthetics. Later designs adopted separate molding processes for the drawer body (transparent component) and the support components (opaque component with internal reinforcing ribs). Ensuring both load-bearing capacity and aesthetics, and allowing for direct replacement of worn support components for convenient maintenance, the design of early transparent drawers, which were directly assembled with the refrigerator liner, was prone to scratches during repeated pulling. Later designs adopted a three-section rail assembly method, transferring the load-bearing components to the three sections, effectively reducing scratches. In terms of functional requirements and technology, addressing the issue of the lack of lighting in the freezer compartment and the difficulty of finding food at night, drawer bodies made of PS plastic containing fluorescent additives were developed, making it easier for users to clearly find food at night. Furthermore, to solve the problem of moisture condensing at the bottom of freezer drawers when storing high-moisture foods, making cleaning difficult, some transparent drawers in refrigerators are equipped with baffles, mesh partitions, and filter boxes. The baffles divide the drawer body into two independent spaces, while the mesh partitions allow moisture from the food to be managed.

[0003] In the existing technology, after the transparent drawer of the refrigerator is processed, the transparent drawer needs to be able to bear the weight. During the strength test of the transparent drawer, a simulated load is placed inside the transparent drawer to be tested. However, this method has low testing efficiency and is prone to damage to the transparent drawer. Summary of the Invention

[0004] The purpose of this invention is to provide a refrigerator transparent drawer strength testing device to solve the problem of low testing efficiency and easy damage to refrigerator transparent drawers mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a refrigerator transparent drawer strength testing device, comprising a conveyor belt, mounting brackets symmetrically mounted on the top of the conveyor belt, mounting plates mounted on the top of the two mounting brackets, a cylinder mounted on the top of the mounting plate, the output end of the cylinder penetrating through the top of the mounting plate and electrically connected to the top of a testing component, a connecting plate mounted on the bottom of the testing component, a plurality of insertion slots arrayed on the bottom of the connecting plate, a plurality of connecting posts provided on the bottom of the connecting plate, silicone protrusions mounted on the bottom of each connecting post, a connecting plate mounted on the top of the connecting plate, an image acquisition device mounted on the connecting plate near the vertical outer wall of the silicone protrusions, the image acquisition device being electrically connected to the refrigerator transparent drawer strength testing system, and a plurality of clamping components provided on the top of the conveyor belt.

[0006] Preferably, the detection assembly includes a mounting sleeve, an extension column, and a first pressure sensor. The output end of the cylinder is connected to the top end of the mounting sleeve. The extension column is vertically and movably connected inside the bottom end of the mounting sleeve. The top end of the extension column corresponds to the detection end of the first pressure sensor. The first pressure sensor is installed inside the top end of the mounting sleeve.

[0007] Preferably, the front and rear ends of the connecting plate are each equipped with a sliding sleeve, and the sliding sleeve is vertically slidably connected to the outer wall of the mounting frame.

[0008] Preferably, each of the inner top edges of the insertion slot is inlaid with a male magnetic absorbing piece, the bottom edge of the male magnetic absorbing piece is magnetically attracted to the top edge of the female magnetic absorbing piece, the female magnetic absorbing piece is inlaid on the top edge of the insertion block, and the insertion block is installed on the top edge of the connecting post.

[0009] Preferably, the clamping assembly includes at least a placement plate. Several placement plates are evenly spaced at the top of the conveyor belt. The placement plates are vertically and movably connected to the top of the connecting cavity. A second pressure sensor is installed at the bottom of the connecting cavity. Reset springs are symmetrically installed at the bottom of the connecting cavity, and the top of the reset springs abuts against the bottom of the placement plate.

[0010] Preferably, the sidewalls of the connecting cavity are all hinged to one end of the extension plate via a rotating shaft, the other end of the extension plate is movably connected to the inside of one end of the connecting sleeve, the other end of the connecting sleeve is hinged to the inner sidewall of the clamping arm via a rotating shaft, a connecting plate is installed on the outer wall of one end of the clamping arm, a balloon block is installed on the corresponding outer sidewall of the connecting plate, elastic sheets are installed through the balloon block at equal intervals, and the two ends of the elastic sheets are respectively connected to the top outer wall and the bottom outer wall of the connecting plate.

[0011] Preferably, the outer wall of the other end of the clamping arm extends through the interior of the mounting cavity. The bottom end of the mounting cavity is connected to the top end of the conveyor belt. A sliding groove is installed inside the mounting cavity. Sliding blocks are symmetrically slidably connected inside the sliding groove. A transmission screw sleeve is installed through the sliding block. The inner side wall of the transmission screw sleeve meshes with the outer side wall of the bidirectional screw. The bidirectional screw is rotatably connected inside the sliding groove. A motor is installed on the side wall of the sliding groove. The output end of the motor is drivenly connected to one end of the bidirectional screw. The bottom end of the sliding block is connected to the outer wall of the other end of the clamping arm.

[0012] Preferably, the refrigerator transparent drawer strength detection system includes a data acquisition module, a data processing module, an execution control module, and an image data analysis module. The data acquisition module is electrically connected to a first pressure sensor, a second pressure sensor, and the data processing module. The data processing module is electrically connected to the image data analysis module. The execution control module is electrically connected to a conveyor belt, a motor, and the image data analysis module. The image data analysis module is electrically connected to an image acquisition device.

[0013] Preferably, the data acquisition module is used to acquire parameter data from the first pressure sensor and the second pressure sensor in the device, and transmit the acquired parameter data to the data processing module.

[0014] The data processing module is used to calculate the weight parameters of the refrigerator's transparent drawer by processing the parameter data generated by the second pressure sensor, and to analyze the collected pressure data using the strength determination algorithm of the first pressure sensor to calculate the actual compressive strength of the drawer.

[0015] The function of the execution control module is to analyze and obtain whether the strength of the currently detected transparent drawer of the refrigerator meets the prescribed standard based on the image data analysis module, and to automatically control the device to act in conjunction with the conveyor belt and motor based on the detection results.

[0016] The image data analysis module is used to capture deformation features through optical acquisition technology, combine digital image processing algorithms to realize deformation, and obtain the detected image transparent drawer strength parameter data and image transparent drawer deformation parameter data through the mapping relationship between deformation parameters and strength performance. The image transparent drawer strength parameter data is then cross-validated with the actual compressive strength data of the drawer obtained by the data processing module, and the verified actual compressive strength data of the drawer is transmitted to the row control module. The image data analysis module includes a physical layer, an algorithm layer, and a model layer.

[0017] Preferably, the specific steps for the image data analysis module to acquire the detected image transparent drawer intensity parameter data and image transparent drawer deformation parameter data are as follows:

[0018] S1: Complete image data acquisition;

[0019] S2: Preprocess the image data;

[0020] S3: Establish a core set of indicators for intensity analysis using preprocessed image data;

[0021] S4: Strength Correlation and Result Determination;

[0022] S5: Obtain the intensity parameter data and deformation parameter data of the transparent drawer in the detected image.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This invention establishes a dual verification system for pressure data and deformation data through the deep integration of pressure detection and image analysis, significantly improving detection accuracy and result reliability. On one hand, the first pressure sensor can accurately capture pressure changes during cylinder loading and calculate the actual compressive strength by combining the cylinder output power and the drawer's load-bearing area. On the other hand, the image data analysis module, through pixel image acquisition devices and 3D deformation quantification algorithms, can identify micro-deformations and extract core indicators such as maximum displacement and residual deformation to infer strength performance. The two sets of data mutually verify each other, avoiding the hidden defects of single pressure detection failing to detect pressure compliance but local deformation exceeding standards, and also compensating for the lack of force quantification in pure image analysis, thus increasing the strength judgment accuracy to over 99%, fully meeting the stringent testing requirements of drawers made of different materials such as PC and tempered glass.

[0025] 2. This invention fully considers multi-scenario adaptability in its structural design and functional configuration, and can flexibly meet the detection needs of transparent refrigerator drawers of different sizes and materials. Structurally, the bottom of the connecting plate adopts a combination structure of plug-in slot and magnetic plate. Through the quick disassembly and assembly of the plug-in block and the connection, and magnetic fixation, the number and position of silicone protrusions can be flexibly adjusted according to the needs of the drawer detection area without replacing the entire detection component. Furthermore, the clamping component uses a bidirectional lead screw and ball block design. The motor drives the sliding block to drive the clamping arm to adjust synchronously. With the elastic buffer of the ball block, it can adapt to drawers with width differences of 10-20cm, and avoids drawer deformation and damage during clamping. This effectively improves work efficiency and practicality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the combined component structure of the connecting plate, sliding sleeve, insertion slot, connecting plate and image acquisition device in this invention.

[0028] Figure 3 This is a cross-sectional structural diagram of the sleeve mounting component in this invention;

[0029] Figure 4 This is a schematic diagram of the disassembled parts structure of the insertion slot, insertion block, connecting post and silicone protrusion in this invention;

[0030] Figure 5 This is a schematic diagram of the combined component structure of the placement plate, clamping arm, connecting plate, balloon block, elastic sheet and mounting cavity in this invention;

[0031] Figure 6 This is a schematic diagram of the disassembled parts structure of the placement plate and connecting cavity in this invention;

[0032] Figure 7 This is a schematic diagram of the cross-sectional structure of the mounting cavity component in this invention;

[0033] Figure 8 For the present invention Figure 7 Enlarged structural diagram of part A in the diagram;

[0034] Figure 9 This is a schematic diagram of the refrigerator transparent drawer strength testing system of the present invention;

[0035] Figure 10 This diagram illustrates the specific steps of the image data analysis module in this invention to obtain the intensity parameter data and deformation parameter data of the transparent drawer in the detected image.

[0036] In the diagram: 1. Conveyor belt; 2. Mounting frame; 3. Mounting plate; 4. Cylinder; 5. Mounting sleeve; 6. Extension column; 7. First pressure sensor; 8. Connecting plate; 9. Sliding sleeve; 10. Insertion groove; 11. Male magnetic absorbing piece; 12. Insertion block; 13. Female magnetic absorbing piece; 14. Connecting column; 15. Silicone protrusion; 16. Connecting plate; 17. Image acquisition device; 18. Placement plate; 19. Connecting cavity; 20. Second pressure sensor; 21. Return spring; 22. Extension plate; 23. Connecting sleeve; 24. Clamping arm; 25. Connecting plate; 26. Balloon block; 27. Elastic sheet; 28. Mounting cavity; 29. ​​Sliding groove; 30. Sliding block; 31. Transmission screw sleeve; 32. Bidirectional screw; 33. Motor. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0038] Example 1

[0039] Please see Figure 1-8This invention provides a refrigerator transparent drawer strength testing device, including a conveyor belt 1, with mounting brackets 2 symmetrically fixedly connected to the top of the conveyor belt 1, and mounting plates 3 with "U"-shaped structures at the top of the mounting brackets 2. A cylinder 4 is fixedly connected to the top of the mounting plate 3, and the output end of the cylinder 4 passes through the top of the mounting plate 3 and is electrically connected to the top of the detection component. The detection component includes a mounting sleeve 5, an extension column 6, and a first pressure sensor 7. The output end of the cylinder 4 is fixedly connected to the top of the mounting sleeve 5, and the first pressure sensor 7 is fixedly connected to the top of the inner part of the mounting sleeve 5. The extension column 6 is vertically movably connected to the bottom of the inner part of the mounting sleeve 5, and the bottom end of the extension column 6 is fixedly connected to the top of the connecting plate 8. Sliding sleeves 9 are fixedly connected to the front and rear outer walls of the connecting plate 8, and the sliding sleeves 9 are vertically slidably connected to the outer wall of the mounting bracket 2.

[0040] When the clamping assembly clamps the transparent drawer of the refrigerator and transports it to the vertical position below the connecting plate 8, the cylinder 4 outputs power vertically according to the operator's control, driving the detection assembly and connecting plate 8 to move vertically downward. While the connecting plate 8 and other components move vertically downward, the sliding sleeve 9 moves vertically synchronously on the outer wall of the mounting bracket 2, ensuring the stability of the vertical movement of the connecting plate 8 and other components. This causes the silicone protrusion 15 to abut against the inner top of the transparent drawer. After the silicone protrusion 15 abuts, the extension column 6 moves vertically upward and abuts against the detection end of the first pressure sensor 7, causing the first pressure sensor 7 to generate a pressure value. The strength of the transparent drawer is judged based on the pressure value and the pneumatic output power.

[0041] The bottom of the connecting plate 8 is fixedly connected with several insertion slots 10. The top of each insertion slot 10 is fixedly connected with a male magnetic absorbing piece 11. The bottom of the connecting plate 8 is provided with several connecting posts 14. The top of each connecting post 14 is fixedly connected with an insertion block 12, and the insertion block 12 is inserted into the corresponding insertion slot 10. The top of each insertion block 12 is fixedly connected with a female magnetic absorbing piece 13. The bottom of each connecting post 14 is fixedly connected with a silicone protrusion 15.

[0042] During the strength testing of a refrigerator's transparent drawer, based on the size of the drawer and the area to be tested, silicone protrusions 15 are installed at the bottom of the corresponding insertion slot 10. Specifically, the silicone protrusions 15 and connecting posts 14 are aligned with the bottom opening of the insertion slot 10 via insertion blocks 12, allowing the insertion blocks 12 to be inserted into the bottom of the slot 10. After the bottom of the male magnetic accumulator 11 is magnetically attracted to the top of the female magnetic accumulator 13, the silicone protrusions 15, connecting posts 14, insertion blocks 12, and female magnetic accumulator 13 are rotated so that the insertion blocks 12 are no longer aligned with the bottom opening of the insertion slot 10. The magnetic attraction between the bottom of the male magnetic accumulator 11 and the top of the female magnetic accumulator 13 is then utilized. This method allows for quick and flexible installation of the silicone protrusions 15 according to the size of the refrigerator's transparent drawer and the area to be tested, making the strength testing of the refrigerator's transparent drawer more convenient and without limitations, thus improving practicality.

[0043] The top end of the conveyor belt 1 is fixedly connected with clamping assemblies at equal intervals. The clamping assemblies include a placement plate 18, a connecting cavity 19, a second pressure sensor 20, a return spring 21, an extension plate 22, a connecting sleeve 23, a clamping arm 24, a connecting plate 25, a ball bearing block 26, an elastic sheet 27, a mounting cavity 28, a sliding groove 29, a sliding block 30, a transmission screw sleeve 31, a bidirectional screw 32, and a motor 33. The top end of the conveyor belt 1 is fixedly connected with the mounting cavity 28 at equal intervals. The top end of the mounting cavity 28 is vertically movably connected to the connecting cavity 19. The top end of the connecting cavity 19 is vertically movably connected to the placement plate 18. The bottom end of the placement plate 18 is symmetrically fixedly connected with a return spring 21. The bottom end of the return spring 21 is fixedly connected to the bottom end of the connecting cavity 19. The bottom end of the connecting cavity 19 is fixedly connected with a second pressure sensor 20. The outer walls on both sides of the connecting cavity 19 are hinged to one end of the extension plate 22 through a rotating shaft. The other end of the extension plate 22 is movably connected to the inside of one end of the connecting sleeve 23. The other end of the connecting sleeve 23 is hinged to the inner wall of the clamping arm 24 through a rotating shaft. The motor 33 is a worm gear reducer motor, and the specific model of the motor 33 is N20.

[0044] In the strength test of the transparent refrigerator drawer, the transparent refrigerator drawer is placed on top of the placement plate 18, and the weight of the transparent refrigerator drawer compresses the return spring 21, causing the placement plate 18 to move vertically into the top of the connecting cavity 19. This causes the bottom of the placement plate 18 to contact the top of the second pressure sensor 20, allowing the second pressure sensor 20 to acquire the initial pressure parameter data of the transparent refrigerator drawer. Based on the pressure parameter data, the weight parameter data of the transparent refrigerator drawer is acquired. When the clamping arms 24 move relative to each other, the angle and length of the extension plate 22 and the connecting sleeve 23 are changed, causing the connecting cavity 19 to move vertically. The movement of the connecting cavity 19 drives the placement plate 18 to move vertically as well, causing the placement plate 18 to separate from the bottom of the clamped transparent refrigerator drawer. As a result, the bottom of the transparent refrigerator drawer is no longer supported, thus completing the strength test.

[0045] The clamping arm 24 is arranged in an "L" shape, and a connecting plate 25 is fixedly connected to the corresponding outer wall of the clamping arm 24. An inflatable balloon block 26 is fixedly connected to the corresponding outer wall of the connecting plate 25. Several "C"-shaped elastic sheets 27 are inserted evenly inside the balloon block 26. The two ends of the elastic sheets 27 are fixedly connected to the top and bottom outer walls of the connecting plate 25, respectively. A sliding groove 29 is fixedly connected inside the mounting cavity 28. Both sides of the sliding groove 29 are movably connected... A sliding block 30 is connected, and a transmission screw sleeve 31 is fixedly connected through the inside of the sliding block 30. The transmission screw sleeve 31 is symmetrically engaged with the outer walls of both sides of the bidirectional screw 32. The bidirectional screw 32 is rotatably connected inside the sliding groove 29. A motor 33 is fixedly connected to the side wall of the sliding groove 29. The output end of the motor 33 passes through the side wall of the sliding groove 29 and extends into the inside of the sliding groove 29 and is fixedly connected to one end of the bidirectional screw 32. The bottom outer wall of the sliding block 30 is fixedly connected to the outer wall of the clamping arm 24.

[0046] When the transparent refrigerator drawer is placed on top of the placement plate 18, the motor 33 rotates forward or reverse, driving the bidirectional lead screw 32 to rotate. Because the teeth on both sides of the bidirectional lead screw 32 have opposite structures, the bidirectional lead screw 32 drives the transmission lead screw sleeve 31, which is symmetrically engaged on the outer wall, to move relative to or opposite to each other. This drives the sliding block 30 to move relative to or opposite to each other. When the sliding block 30 moves relative to or opposite to each other, it drives the clamping arm 24 to move synchronously. The clamping arm 24, according to the size of the transparent refrigerator drawer, works with the balloon block 26 to clamp the transparent refrigerator drawer. Due to the characteristics of the balloon block 26, deformation of the transparent refrigerator drawer is avoided due to clamping force. At the same time, the balloon block 26, together with the elastic plate 27, increases the clamping force. This method can quickly clamp transparent refrigerator drawers of different sizes and effectively avoid damage to the transparent refrigerator drawers due to clamping, thus improving the practicality of the device.

[0047] The specific usage process in this embodiment is as follows:

[0048] First, place the transparent drawer of the refrigerator on top of the placement plate 18 and obtain the initial pressure parameter data of the transparent drawer of the refrigerator. Then, obtain the weight parameter data of the transparent drawer of the refrigerator based on the pressure parameter data.

[0049] Secondly, when the transparent drawer of the refrigerator is placed on the top of the placement plate 18, the motor 33 rotates forward or in reverse, causing the motor 33 to drive the bidirectional lead screw 32 to rotate. Since the teeth on both sides of the outer wall of the bidirectional lead screw 32 are arranged with opposite structures, the bidirectional lead screw 32 drives the transmission lead screw sleeve 31 that is symmetrically engaged on the outer wall to move relative to or opposite to each other, thereby driving the sliding block 30 to move relative to or opposite to each other. When the sliding block 30 moves relative to or opposite to each other, it drives the clamping arm 24 to move synchronously. According to the size of the transparent drawer of the refrigerator, the clamping arm 24 cooperates with the ball block 26 to complete the clamping of the transparent drawer of the refrigerator.

[0050] Subsequently, when the clamping arms 24 move relative to each other, the angle and length of the extension plate 22 and the connecting sleeve 23 are changed, so that the connecting cavity 19 moves vertically. The movement of the connecting cavity 19 drives the placement plate 18 to move vertically as well, so that the placement plate 18 separates from the bottom of the refrigerator transparent drawer after clamping, and thus the bottom of the refrigerator transparent drawer is not supported.

[0051] Then, based on the size of the refrigerator's transparent drawer and the area to be tested, silicone protrusions 15 are installed at the bottom of the corresponding insertion slot 10. The specific method for installing silicone protrusions 15 is as follows: silicone protrusions 15 and connecting posts 14 are aligned with the bottom opening of insertion slot 10 via insertion blocks 12, so that insertion blocks 12 are inserted into the bottom of insertion slot 10. After the bottom of male magnetic absorbing piece 11 is magnetically attracted to the top of female magnetic absorbing piece 13, the silicone protrusions 15, connecting posts 14, insertion blocks 12 and female magnetic absorbing pieces 13 are rotated so that insertion blocks 12 are no longer aligned with the bottom opening of insertion slot 10, and the magnetic attraction between the bottom of male magnetic absorbing piece 11 and the top of female magnetic absorbing piece 13 is achieved.

[0052] Finally, the cylinder 4 is operated by the operator to output vertical power according to a specific power, driving the detection component and connecting plate 8 and other components to move vertically downward. When the connecting plate 8 and other components move vertically downward, the sliding sleeve 9 moves vertically synchronously on the outer wall of the mounting bracket 2 to ensure the stability of the vertical movement of the connecting plate 8 and other components. The silicone protrusion 15 is then pressed against the inner top of the refrigerator transparent drawer. After the silicone protrusion 15 is pressed against the drawer, the extension column 6 moves vertically upward and comes into contact with the detection end of the first pressure sensor 7, causing the first pressure sensor 7 to generate a pressure value. The strength of the refrigerator transparent drawer is judged based on the pressure value and the pneumatic output power. In this way, the refrigerator transparent drawer strength detection device is completed.

[0053] It should be noted that this invention is a refrigerator transparent drawer strength testing device. All components are general standard parts or parts known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power components, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle above and complete the electrical connection in the order of operation between each electrical component. The detailed connection method is a well-known technology in the field.

[0054] Example 2

[0055] Please see Figure 9 and Figure 10 The present invention provides a refrigerator transparent drawer strength testing device, including a refrigerator transparent drawer strength testing system. The refrigerator transparent drawer strength testing system is electrically connected to an image acquisition device 17, a first pressure sensor 7, and a second pressure sensor 20. The image acquisition device 17 is fixedly connected to the vertical outer wall of the connecting plate 16 near the silicone protrusion 15. The connecting plate 16 is arranged in an "L" shape, and one end of the connecting plate 16 is fixedly connected to the top of the connecting plate 8.

[0056] The refrigerator transparent drawer strength testing system includes a data acquisition module, a data processing module, an execution control module, and an image data analysis module. The data acquisition module is electrically connected to the first pressure sensor 7, the second pressure sensor 20, and the data processing module. The data processing module is electrically connected to the image data analysis module. The execution control module is electrically connected to the conveyor belt 1, the motor 33, and the image data analysis module. The image data analysis module is electrically connected to the image acquisition device 17.

[0057] The function of the data acquisition module is to collect parameter data from the first pressure sensor 7 and the second pressure sensor 20 in this device, and transmit the collected parameter data to the data processing module. The data acquisition module receives pressure data in real time with an accuracy of ±0.1N.

[0058] The data processing module is used to calculate the weight parameters of the refrigerator's transparent drawer by processing the parameter data generated by the second pressure sensor 20, and to analyze the collected pressure data using the strength determination algorithm of the first pressure sensor 7 to calculate the actual compressive strength data of the drawer. Specifically, the strength determination algorithm combines the output power of the cylinder 4 and the load-bearing area of ​​the refrigerator's transparent drawer to obtain the actual compressive strength data of the drawer, and then transmits the actual compressive strength data of the drawer to the image data analysis module.

[0059] The function of the execution control module is to analyze the image data analysis module to determine whether the strength of the currently detected transparent drawer of the refrigerator meets the prescribed standards, and to link with the conveyor belt 1 and the motor 33 to automatically control the device to operate based on the detection results.

[0060] The image data analysis module is responsible for capturing deformation features through optical acquisition technology, realizing deformation by combining digital image processing algorithms, and obtaining the strength parameter data and deformation parameter data of the detected transparent drawer through the mapping relationship between deformation parameters and strength performance. The image transparent drawer strength parameter data is then cross-validated with the actual compressive strength data of the drawer obtained by the data processing module, and the verified actual compressive strength data of the drawer is transmitted to the row control module. The image data analysis module includes a physical layer, an algorithm layer, and a model layer.

[0061] The physical layer includes at least an image acquisition device 17, which has a pixel parameter of 20 million and a frame rate parameter of ≥30 FPS.

[0062] The algorithm layer uses image processing and geometric analysis algorithms to transform the acquired visual data into deformable parameters, which include at least displacement, curvature change, and volume deviation.

[0063] The model layer is based on the theory of materials mechanics and historical test data to establish a correlation model between deformation parameters and actual strength performance, and to infer the strength compliance through deformation data.

[0064] The image data analysis module and the data traceability module are electrically connected. The function of the data traceability module is to store the test data of each drawer for a period of ≥1 year. It supports exporting Excel reports by date, model and batch. The test data includes at least pressure value, test time, operator and judgment result.

[0065] The specific steps for the image data analysis module to obtain the intensity parameter data and deformation parameter data of the transparent drawer in the detected image are as follows:

[0066] S1: Complete image data acquisition;

[0067] S2: Preprocess the image data;

[0068] S3: Establish a core set of indicators for intensity analysis using preprocessed image data;

[0069] S4: Strength Correlation and Result Determination;

[0070] S5: Obtain the intensity parameter data and deformation parameter data of the transparent drawer in the detected image.

[0071] In S2, the image data preprocessing specifically involves filtering surface polarized light using an over-polarization filtering algorithm to preserve the true deformation texture. Using fixed feature points such as drawer edges and handles as a reference, the SIFT algorithm is used to align the loaded image with the unloaded reference image to eliminate displacement interference. Finally, threshold segmentation and edge detection are used to locate the key stress area of ​​the drawer and focus on the core deformation area analysis.

[0072] In S3, the core indicator set includes at least the maximum displacement, the area ratio of the deformed region, the residual deformation parameters after unloading, and the curvature change rate parameters.

[0073] In S4, a correlation model is established to predict the compressive strength value and standardize the influence weight. At the same time, the predicted strength value is compared with the preset standard, and the result is determined by combining the distribution of the out-of-standard area in the deviation heatmap.

[0074] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A refrigerator transparent drawer strength testing device, comprising a conveyor belt (1), characterized in that: The top of the conveyor belt (1) is symmetrically equipped with mounting brackets (2), and the top of the two mounting brackets (2) is equipped with mounting plates (3). The top of the mounting plate (3) is equipped with a cylinder (4), and the output end of the cylinder (4) passes through the top of the mounting plate (3) and is electrically connected to the top of the detection component. The bottom of the detection component is equipped with a connecting plate (8), and the bottom of the connecting plate (8) is equipped with an array of several insertion slots (10). The bottom of the connecting plate (8) is provided with several connecting posts (14), and the bottom of each connecting post (14) is equipped with a silicone protrusion (15). The top of the connecting plate (8) is equipped with a connecting plate (16), and the connecting plate (16) is equipped with an image acquisition device (17) near the vertical outer wall of the silicone protrusion (15). The image acquisition device (17) is electrically connected to the refrigerator transparent drawer strength detection system. The top of the conveyor belt (1) is provided with several clamping components.

2. The refrigerator transparent drawer strength testing device according to claim 1, characterized in that: The detection assembly includes a mounting sleeve (5), an extension column (6), and a first pressure sensor (7). The output end of the cylinder (4) is connected to the top end of the mounting sleeve (5). The extension column (6) is vertically and movably connected inside the bottom end of the mounting sleeve (5). The top end of the extension column (6) corresponds to the detection end of the first pressure sensor (7). The first pressure sensor (7) is installed inside the top end of the mounting sleeve (5).

3. The refrigerator transparent drawer strength testing device according to claim 1, characterized in that: The front and rear ends of the connecting plate (8) are each equipped with a sliding sleeve (9), and the sliding sleeve (9) is vertically slidably connected to the outer wall of the mounting frame (2).

4. The refrigerator transparent drawer strength testing device according to claim 1, characterized in that: The top of each of the insertion slots (10) is inlaid with a male magnetic absorbing piece (11), the bottom of the male magnetic absorbing piece (11) is magnetically attracted to the top of the female magnetic absorbing piece (13), the female magnetic absorbing piece (13) is inlaid on the top of the insertion block (12), and the insertion block (12) is installed on the top of the connecting post (14).

5. The refrigerator transparent drawer strength testing device according to claim 1, characterized in that: The clamping assembly includes at least a placement plate (18). Several placement plates (18) are evenly spaced at the top of the conveyor belt (1). The placement plates (18) are vertically and movably connected to the top of the connecting cavity (19). A second pressure sensor (20) is installed at the bottom of the connecting cavity (19). Reset springs (21) are symmetrically installed at the bottom of the connecting cavity (19), and the top of the reset springs (21) abuts against the bottom of the placement plates (18).

6. The refrigerator transparent drawer strength testing device according to claim 5, characterized in that: The sidewalls of the connecting cavity (19) are all hinged to one end of the extension plate (22) via a pivot. The other end of the extension plate (22) is movably connected to the inside of one end of the connecting sleeve (23). The other end of the connecting sleeve (23) is hinged to the inner sidewall of the clamping arm (24) via a pivot. A connecting plate (25) is installed on the outer wall of one end of the clamping arm (24). A balloon block (26) is installed on the corresponding outer sidewall of the connecting plate (25). Elastic sheets (27) are installed through the balloon block (26) at equal intervals. The two ends of the elastic sheet (27) are connected to the top outer wall and the bottom outer wall of the connecting plate (25) respectively.

7. The refrigerator transparent drawer strength testing device according to claim 6, characterized in that: The outer wall of the other end of the clamping arm (24) penetrates the interior of the mounting cavity (28). The bottom end of the mounting cavity (28) is connected to the top end of the conveyor belt (1). A sliding groove (29) is installed inside the mounting cavity (28). Sliding blocks (30) are symmetrically slidably connected inside the sliding groove (29). A transmission screw sleeve (31) is installed through the sliding block (30). The inner side wall of the transmission screw sleeve (31) meshes with the outer side wall of the bidirectional screw (32). The bidirectional screw (32) is rotatably connected inside the sliding groove (29). A motor (33) is installed on the side wall of the sliding groove (29). The output end of the motor (33) is connected to one end of the bidirectional screw (32). The bottom end of the sliding block (30) is connected to the outer wall of the other end of the clamping arm (24).

8. The refrigerator transparent drawer strength testing device according to claim 1, characterized in that: The refrigerator transparent drawer strength detection system includes a data acquisition module, a data processing module, an execution control module, and an image data analysis module. The data acquisition module is electrically connected to the first pressure sensor (7), the second pressure sensor (20), and the data processing module. The data processing module is electrically connected to the image data analysis module. The execution control module is electrically connected to the conveyor belt (1), the motor (33), and the image data analysis module. The image data analysis module is electrically connected to the image acquisition device (17).

9. A refrigerator transparent drawer strength testing device according to claim 8, characterized in that: The function of the data acquisition module is to acquire parameter data of the first pressure sensor (7) and the second pressure sensor (20) in this device, and transmit the acquired parameter data to the data processing module. The data processing module is used to calculate the parameter data generated by the second pressure sensor (20) to obtain the detected weight parameter data of the transparent drawer of the refrigerator, and to analyze the collected pressure data using the strength determination algorithm of the first pressure sensor (7) to calculate the actual compressive strength data of the drawer. The function of the execution control module is to analyze and obtain whether the strength of the currently detected transparent drawer of the refrigerator meets the prescribed standard according to the image data analysis module, and to link with the conveyor belt (1) and the motor (33) to automatically control the device to act according to the detection result; The image data analysis module is used to capture deformation features through optical acquisition technology, combine digital image processing algorithms to realize deformation, and obtain the strength parameter data and deformation parameter data of the refrigerator transparent drawer through the mapping relationship between deformation parameters and strength performance. The strength parameter data of the refrigerator transparent drawer is then verified with the actual compressive strength data of the drawer obtained by the data processing module, and the verified actual compressive strength data of the drawer is transmitted to the execution control module. The image data analysis module includes a physical layer, an algorithm layer and a model layer.

10. A refrigerator transparent drawer strength testing device according to claim 8, characterized in that: The specific steps for the image data analysis module to acquire the detected image transparent drawer strength parameter data and image transparent drawer deformation parameter data are as follows: S1: Complete image data acquisition; S2: Preprocess the image data; S3: Establish a core set of indicators for intensity analysis using preprocessed image data; S4: Strength Correlation and Result Determination; S5: Obtain the intensity parameter data and deformation parameter data of the transparent drawer in the detected image.

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