A method and device for detecting quality of lock

Abstract

The present invention discloses a lock buckle quality detection method and detection device, and relates to the technical field of quality detection. The lock buckle quality detection method detects the tensile quality of the lock buckle based on the lock buckle tensile detection data, obtains the tensile detection result, obtains the lock buckle anti-fall detection data, detects the lock buckle anti-fall quality based on the lock buckle anti-fall detection data, obtains the anti-fall detection result, and the anti-fall detection result includes the anti-fall detection failure and the anti-fall detection passing. The tensile detection result and the anti-fall detection result are combined to obtain the lock buckle comprehensive quality detection result and the detection level corresponding to the lock buckle comprehensive quality detection result, which solves the problem that the existing lock buckle performance detection method has insufficient evaluation data processing and is difficult to effectively quantify and evaluate the quality of the lock buckle. In addition, the socket can achieve the effect of being compatible with the inner buckle and the outer buckle, improves the interchangeability and compatibility of the product, and makes the product more multifunctional.

Description

Technical Field

[0001] The present invention relates to the technical field of quality inspection, and in particular to a lock quality inspection method and an inspection device. Background Art

[0002] At present, as a component, locks are widely and importantly used in many products, such as car hoods, mobile phone back covers, remote controls, etc. Lock assembly uses the elastic deformation of the components and the deformation recovery after buckling to achieve the connection between two components. The current lock design, its structural form and specific dimensions are usually designed based on the experience of engineers. However, there is no strict finite element mechanical analysis to evaluate the rationality and reliability of its design, so there is a risk of easy falling off in actual application. Lock performance is one of the important indicators for evaluating lock quality.

[0003] The Chinese invention patent with the announcement number CN107917796B announces a method for testing the locking performance of a locking floor, which belongs to the field of detection technology. The locking performance testing method of the locking floor includes the following steps: a. Clamp and position the flat floor after locking in a test box, set the temperature of the test box to 23±2°C and the humidity to 50±5% and place it to a constant temperature; b. Set the temperature of the test box to -5°C and the humidity to 10%, keep it for 4-8 hours, and then adjust the temperature of the test box back to 23°C and the humidity to 50% and place it; c. Set the temperature of the test box to 50°C and the humidity to 70%, keep it for 4-8 hours, and adjust the temperature of the test box back to 23°C and the humidity to 50% and place it; d. Set the temperature of the test box to -5°C and the humidity to 10%, keep it for 4-8 hours, and then adjust the temperature of the test box back to 23°C and the humidity to 50% and place it; e. Take steps b, c, and d as one cycle, and repeat 2-4 cycles. The present invention can quickly and intuitively evaluate the locking condition of the lock of the lock floor during a specific temperature and humidity change process.

[0004] However, the existing lock performance testing methods only evaluate the quality of the lock through temperature and humidity testing, and the evaluation data processing is not comprehensive enough, making it difficult to effectively quantify and evaluate the quality of the lock. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a lock quality detection method and a lock structure, which solves the problem that the existing lock performance detection method only evaluates the quality of the lock through temperature and humidity detection, and the evaluation data processing is not comprehensive, making it difficult to effectively quantify and evaluate the quality of the lock.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a lock buckle quality detection method, comprising the following steps: obtaining lock buckle tensile test data, detecting the tensile quality of the lock buckle based on the lock buckle tensile test data, and obtaining a tensile test result, wherein the tensile test result includes unqualified tensile test and qualified tensile test, and the lock buckle tensile test data includes lock buckle tensile data under each test force and data under the maximum test force; obtaining lock buckle anti-fall test data, detecting the anti-fall quality of the lock buckle based on the lock buckle anti-fall test data, and obtaining an anti-fall test result, wherein the anti-fall test result includes anti-fall test. The drop test failed and the anti-drop test passed, the anti-drop test data of the lock buckle included the percentage of lock buckle damage under each drop force and the average deformation of the undamaged lock buckle under each drop force; the tensile test results and the anti-drop test results were combined to obtain the comprehensive quality test results of the lock buckle and the test grade corresponding to the comprehensive quality test results of the lock buckle, the comprehensive quality test results of the lock buckle included qualified comprehensive test, unqualified comprehensive test and unqualified single test, the qualified comprehensive test corresponds to the qualified comprehensive test grade, the unqualified comprehensive test corresponds to the unqualified comprehensive test grade, the unqualified single test corresponds to the unqualified single test grade.

[0007] Furthermore, the tensile quality of the buckle is tested based on the tensile test data of the buckle to obtain the tensile test result, including the following steps: obtaining the tensile test reference data of the buckle stored in the database, the tensile test reference data of the buckle stored in the database including the tensile reference data of the buckle under each test force and the reference data under the maximum test force; fusing and analyzing the tensile data of the buckle under each test force with the tensile reference data of the buckle under each test force to obtain the comprehensive quality coefficient of the buckle under each test force, the tensile data of the buckle under each test force including the deformation of the buckle under each test force, the residual deformation of the buckle under each test force and the damage coefficient of the buckle under each test force The damage ratio, the tensile strength reference data of the lock buckle under each detection force includes the reference deformation of the lock buckle under each detection force, the reference residual deformation of the lock buckle under each detection force and the reference damage ratio of the lock buckle under each detection force; the data under the maximum detection force and the reference data under the maximum detection force are integrated and analyzed to obtain the lock buckle quality coefficient under the maximum detection force, the data under the maximum detection force includes the average maximum force when the lock buckle is damaged and the support time of the lock buckle without damage under the maximum detection force, the reference data under the maximum detection force includes the reference average maximum force when the lock buckle is damaged and the reference support time of the lock buckle without damage under the maximum detection force; the calculation formula of the tensile quality evaluation index is as follows:

[0008] ;

[0009] In the formula, is the tensile quality evaluation index, is the comprehensive quality coefficient of the lock under each test force, is the weight factor of the comprehensive quality coefficient of the lock under each detection force stored in the database, is the lock quality coefficient under the maximum detection force, is the weight factor of the lock quality coefficient under the maximum detection force stored in the database; the comprehensive quality coefficient of the lock under each detection force is integrated with the lock quality coefficient under the maximum detection force to obtain the tensile quality assessment index; the tensile quality assessment index is compared with the tensile quality assessment threshold stored in the database to determine whether the tensile quality assessment index is less than the tensile quality assessment threshold stored in the database: if the tensile quality assessment index is less than the tensile quality assessment threshold stored in the database, the tensile test result is qualified; if the tensile quality assessment index is not less than the tensile quality assessment threshold stored in the database, the tensile test result is unqualified.

[0010] Further, the anti-fall quality of the lock buckle is tested based on the anti-fall test data of the lock buckle to obtain the anti-fall test result, including the following steps: fusing and analyzing the anti-fall test data of the lock buckle with the anti-fall test reference data of the lock buckle stored in the database to obtain the anti-fall quality index of the lock buckle, wherein the anti-fall test reference data of the lock buckle stored in the database includes the reference damage ratio of the lock buckle under each drop force and the average reference deformation of the undamaged lock buckle under each drop force; the calculation formula of the anti-fall quality index of the lock buckle is as follows:

[0011] ;

[0012] In the formula, It is the anti-fall quality index of the lock. is the number of each wrestling force, , is the total number of wrestling forces, For the The percentage of buckle damage under falling force, For the Average deformation of the undamaged lock under a drop force, is the reference damage ratio of the lock, The lock buckle anti-fall quality index is compared with the lock buckle anti-fall quality threshold stored in the database for the average reference deformation of the undamaged lock buckle to determine whether the lock buckle anti-fall quality index is less than the lock buckle anti-fall quality threshold stored in the database: if the lock buckle anti-fall quality index is less than the lock buckle anti-fall quality threshold stored in the database, the anti-fall test result is that the anti-fall test is qualified; if the lock buckle anti-fall quality index is not less than the lock buckle anti-fall quality threshold stored in the database, the anti-fall test result is that the anti-fall test is unqualified.

[0013] Furthermore, the comprehensive tensile test results and anti-fall test results are combined to obtain the comprehensive quality test results of the lock and the test grade corresponding to the comprehensive quality test results of the lock, including the following steps: if the tensile test result is qualified in the tensile test and the anti-fall test result is qualified in the anti-fall test, then the comprehensive quality test result of the lock is qualified in the comprehensive test, and the comprehensive qualified test grade corresponding to the qualified comprehensive test is determined according to the tensile quality evaluation index and the anti-fall quality index of the lock; if the tensile test result is unqualified in the tensile test and the anti-fall test result is unqualified in the anti-fall test, then the comprehensive quality test result of the lock is unqualified in the comprehensive test, and the comprehensive qualified test grade corresponding to the qualified comprehensive test is determined according to the tensile quality evaluation index and the anti-fall quality index of the lock. The difference between the quality assessment index and the tensile quality assessment threshold and the difference between the lock anti-fall quality index and the anti-fall quality threshold determine the comprehensive unqualified inspection level corresponding to the comprehensive inspection failure; if the tensile test result is that the tensile test is qualified and the anti-fall test result is that the anti-fall test is unqualified, or the tensile test result is that the tensile test is unqualified and the anti-fall test result is that the anti-fall test is qualified, then the comprehensive quality inspection result of the lock is a single test failure, and the single unqualified inspection level corresponding to the single test failure is determined according to the maximum value of the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the lock anti-fall quality index and the anti-fall quality threshold.

[0014] Further, the comprehensive qualified test level corresponding to the comprehensive test qualified is determined according to the tensile quality evaluation index and the lock buckle anti-fall quality index, including the following steps: weighted summing the tensile quality evaluation index and the lock buckle anti-fall quality index to obtain a comprehensive quality index, and the calculation formula of the comprehensive quality index is as follows:

[0015] ;

[0016] In the formula, is the comprehensive quality index, is the tensile quality assessment index weight factor stored in the database, is the weight factor of the drop resistance quality index stored in the database; the comprehensive quality index is compared with the comprehensive qualified inspection levels corresponding to each comprehensive quality index stored in the database to obtain the comprehensive qualified inspection level corresponding to the comprehensive quality index.

[0017] Further, the comprehensive unqualified detection level corresponding to the comprehensive detection failure is determined according to the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the lock buckle anti-fall quality index and the anti-fall quality threshold, including the following steps: the difference between the quality evaluation index and the tensile quality evaluation threshold and the difference between the lock buckle anti-fall quality index and the anti-fall quality threshold are merged to obtain a comprehensive quality unqualified index, and the calculation formula of the comprehensive quality unqualified index is as follows:

[0018] ;

[0019] In the formula, is the comprehensive quality failure index, is the difference between the quality assessment index and the tensile quality assessment threshold, is the difference between the lock's drop resistance quality index and the drop resistance quality threshold. is a natural constant; the comprehensive unqualified quality index is compared with the comprehensive unqualified detection levels corresponding to each comprehensive unqualified quality index stored in the database to obtain the comprehensive unqualified detection level corresponding to the comprehensive unqualified quality index.

[0020] Further, the method of determining the single unqualified detection level corresponding to the single unqualified detection according to the maximum value of the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold comprises the following steps: determining the maximum value of the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold; if the maximum value is the difference between the tensile quality evaluation index and the tensile quality evaluation threshold, then comparing the difference between the tensile quality evaluation index and the tensile quality evaluation threshold with the tensile quality evaluation threshold values ​​of each tensile quality evaluation stored in the database; The single unqualified detection level corresponding to the difference between the anti-throw quality assessment index and the tensile quality assessment threshold is compared to obtain the single unqualified detection level corresponding to the difference between the tensile quality assessment index and the tensile quality assessment threshold; if the maximum value is the difference between the lock anti-fall quality index and the anti-fall quality threshold, then the difference between the lock anti-fall quality index and the anti-fall quality threshold is compared with the single unqualified detection level corresponding to the difference between the lock anti-fall quality index and the anti-fall quality threshold stored in the database to obtain the single unqualified detection level corresponding to the difference between the lock anti-fall quality index and the anti-fall quality threshold.

[0021] A detection device applied to a lock quality detection method, comprising a lock structure tensile data detection module, a lock structure anti-fall data detection module, a lock structure quality data analysis module, a memory and a processor, wherein: the lock structure tensile data detection module is used to obtain the lock tensile detection data of the lock structure to be detected, and the lock tensile detection data includes the lock tensile data under each detection force and the data under the maximum detection force; the lock structure anti-fall data detection module is used to obtain the lock anti-fall detection data of the lock structure to be detected, and the lock anti-fall detection data includes the percentage of lock damage under each drop force and the average deformation of undamaged locks under each drop force; the lock structure quality data analysis module is used to comprehensively The tensile test results and the drop test results are used to obtain the comprehensive quality test results of the lock and the test level corresponding to the comprehensive quality test results of the lock, the comprehensive quality test results of the lock include comprehensive test qualified, comprehensive test unqualified and single test unqualified, the comprehensive test qualified corresponds to the comprehensive qualified test level, the comprehensive test unqualified corresponds to the comprehensive unqualified test level, and the single test unqualified corresponds to the single unqualified test level; computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the lock quality detection method as described above; the lock structure to be detected includes a socket and a buckle, and the socket is plugged with the buckle.

[0022] Furthermore, the buckle is an external buckle, an external snap-in position is provided on the surface of the socket, an external snap-in hook is fixedly connected to the surface of the external buckle, the socket is movably connected to the external buckle, and the external snap-in hook is snap-connected with the external snap-in position.

[0023] Furthermore, the buckle is an inner buckle, the surface of the socket is provided with an inner snap-fitting protrusion, the surface of the inner buckle is provided with an inner snap-fitting groove, the socket is movably connected to the inner buckle, and the surface of the inner snap-fitting protrusion is movably connected to the inner side wall of the inner snap-fitting groove.

[0024] The present invention has the following beneficial effects:

[0025] (1) This lock buckle quality testing method, through dual testing of the tensile strength and drop resistance of the lock buckle, uses deformation, residual deformation, damage ratio and other parameters for detailed analysis, which helps to identify specific problems of the lock buckle in actual use and comprehensively evaluate the performance of the lock buckle under different load conditions. The combination of the results of these two aspects can more accurately reflect the overall quality of the lock buckle and avoid the deviation that may be caused by relying on only a single indicator.

[0026] (2) The buckle quality inspection method integrates the actual inspection data with the reference data for analysis, calculates the comprehensive quality coefficient and quality index, and provides a more objective quality assessment in a data-driven manner, which helps to avoid the bias of subjective judgment. The maximum value of the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold is selected as the judgment standard for single unqualified items, ensuring that the most serious quality problems are dealt with first.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a flow chart of the lock quality detection method of the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the locking structure of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure of the locking structure socket of the present invention.

[0031] Figure 4 It is a schematic diagram of the outer buckle structure of the locking structure of the present invention.

[0032] Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the locking structure of the present invention.

[0033] Figure 6 It is a schematic diagram of the inner buckle structure of the lock structure of the present invention.

[0034] In the figure: 1. socket; 2. external buckle; 3. external card connection position; 4. internal card connection protrusion; 5. external card connection hook; 6. internal card slot; 7. internal buckle. DETAILED DESCRIPTION

[0035] The embodiment of the present application effectively solves the quality control problems of lock products in terms of safety and durability through the lock quality detection method. By subjecting the lock to two different types of tests, namely tensile strength and drop resistance, its mechanical properties and damage resistance can be comprehensively evaluated. By combining the results of these two tests, this method can not only ensure the reliability of the lock in actual use, but also accurately screen out products that do not meet quality standards, thereby improving the overall quality and market competitiveness of the product.

[0036] See also Figure 1, the embodiment of the present invention provides a technical solution: a method for detecting the quality of a lock buckle, comprising the following steps: obtaining the tensile test data of the lock buckle, detecting the tensile quality of the lock buckle based on the tensile test data, and obtaining the tensile test result, wherein the tensile test result includes unqualified tensile test and qualified tensile test, and the tensile test data of the lock buckle includes the tensile test data of the lock buckle under each test force and the data under the maximum test force; obtaining the anti-fall test data of the lock buckle, detecting the anti-fall quality of the lock buckle based on the anti-fall test data, and obtaining the anti-fall test result, wherein the anti-fall test result includes unqualified anti-fall test and qualified anti-fall test, and the anti-fall test data of the lock buckle includes the percentage of lock buckle damage under each drop force and the average deformation of undamaged lock buckles under each drop force. The percentage of lock buckle damage under each drop force is calculated by recording the number of damaged lock buckles and the total number of tests at each drop force level, that is, the number of damaged lock buckles divided by the total number of lock buckles tested under the drop force. The average deformation of the undamaged lock buckle under each drop force can be accurately calculated by comparing the models before and after the test through a 3D scanner. After that, the average deformation of the undamaged lock buckle under each drop force is obtained by performing mean processing.

[0037] Based on the tensile test results and the drop test results, the comprehensive quality test result of the lock and the test grade corresponding to the comprehensive quality test result of the lock are obtained. The comprehensive quality test result of the lock includes comprehensive test qualified, comprehensive test unqualified and single test unqualified. The comprehensive test qualified corresponds to a comprehensive qualified test grade, the comprehensive test unqualified corresponds to a comprehensive unqualified test grade, and the single test unqualified corresponds to a single unqualified test grade.

[0038] Get tensile data, record the tensile data of the buckle under different tensile forces and its performance under maximum tensile force, and judge whether the buckle meets the tensile standard based on the data, and the result is qualified or unqualified. Get drop resistance data, record the damage percentage of the buckle under different drop forces and the average deformation of the undamaged buckle, and evaluate the drop resistance quality of the buckle based on the drop resistance data, and also get a qualified or unqualified result. Combine the tensile and drop resistance test results, and evaluate the final quality grade of the buckle based on the results of the two tests, including comprehensive qualified, comprehensive unqualified, or single unqualified.

[0039] It covers two key performance indicators, tensile strength and drop resistance, to ensure that the performance of the lock under different stress conditions is verified, thereby providing comprehensive quality assurance and ensuring that each lock can withstand the specified tensile and drop forces, reducing safety accidents caused by quality problems, especially in safety-critical applications (such as rock climbing equipment, baby seats, etc.).

[0040] Specifically, the tensile quality of the buckle is tested based on the buckle tensile test data to obtain the tensile test result, including the following steps: obtaining the buckle tensile test reference data stored in the database, the buckle tensile test reference data stored in the database including the buckle tensile reference data under each test force and the reference data under the maximum test force; fusing the buckle tensile data under each test force with the buckle tensile reference data under each test force to obtain the comprehensive quality coefficient of the buckle under each test force, the buckle tensile data under each test force including the buckle deformation under each test force, the buckle residual deformation under each test force and the buckle damage ratio under each test force, the buckle tensile reference data under each test force including the buckle reference deformation under each test force, the buckle reference residual deformation under each test force and the buckle reference damage ratio under each test force.

[0041] The pre-stored reference data of the tensile test of the buckle are extracted from the database. The reference data of the tensile test of the buckle under each test force and the reference data under the maximum test force are derived from the previous historical test data. The historical test data are averaged and stored in the database, which is defined as the reference data of the tensile test of the buckle, providing a benchmark for evaluating new test samples. The current batch of buckles are subjected to tensile test, and the deformation, residual deformation and damage percentage are recorded. The measurement of deformation and residual deformation is mainly used to evaluate the behavior of the material after force and unloading. First, the deformation is measured by recording the maximum deformation of the buckle under tension or pressure. Then, when the force is completely removed, the final size of the buckle is measured and recorded to obtain the residual deformation, that is, the permanent shape change retained by the material after the force is removed. These two parameters are of great significance for understanding the elastic and plastic properties of the material and its durability in practical applications. Both deformation and residual deformation can be obtained through the digital image correlation (DIC) system.

[0042] The test data obtained at each test force level will be collected to ensure comprehensiveness. The current test data is compared with the reference data in the database. The analysis includes comparing the differences between the actual test results and the reference standards, such as whether the deformation exceeds the reference range, and whether the residual deformation and damage ratio are within acceptable limits. Based on the comparative analysis, the comprehensive quality coefficient of the lock at each test force is calculated as the basis for calculating the tensile quality evaluation index.

[0043] The calculation formula of the comprehensive quality coefficient of the lock under each test force is as follows:

[0044] ;

[0045] In the formula, is the number of each test force, , is the total number of detection forces, For the The buckle deformation under the test force, For the The residual deformation of the lock under the test force, For the The percentage of lock damage under each test force, For the Reference deformation of the lock under a testing force, For the Reference residual deformation of the lock under the test force, For the Reference damage ratio of lock buckle under each test force, It is the comprehensive quality coefficient of the lock under each test force.

[0046] Actual data is collected from the buckle quality inspection, including buckle deformation, residual deformation and damage ratio under each inspection force. At the same time, corresponding reference data is extracted from the historical or standard database: reference deformation, reference residual deformation and reference damage ratio. The actual measured value and the corresponding reference value under each inspection force are proportionally calculated, including the actual value of deformation, residual deformation and damage ratio divided by its corresponding reference value. The ratio of deformation is summed and divided by the total number of inspection forces to obtain the average ratio. The ratio of residual deformation and damage ratio is summed separately. The sum of all the above ratios is used as the comprehensive quality coefficient of the buckle, which comprehensively reflects the performance of the buckle under each inspection force compared with the reference standard.

[0047] Deformation refers to the change in the overall shape or size of a material under the action of an external force. Residual deformation refers to the part of the deformation that the material fails to recover after the external force is completely removed, that is, plastic deformation. When the deformation is large, it usually means that the residual deformation may also be large, especially when the material reaches or exceeds its elastic limit. In this case, the internal structure of the material may have undergone permanent changes, such as displacement of the lattice structure, formation of microcracks, etc. The damage ratio refers to the proportion of damaged or failed locks to the total number of tests under given test conditions. Damage is usually caused by exceeding the material's bearing capacity, which may be due to excessive deformation. If the deformation continues to exceed the material's elastic limit (also known as the yield point), it may cause the structural integrity of the material to be damaged, thereby increasing the damage ratio. This damage may be fracture, severe plastic deformation, or other forms of mechanical failure. Large residual deformation usually indicates that the material has suffered more severe plastic deformation. In some applications, even if there is no immediately visible fracture, large residual deformation may be considered a failure because it may affect the functionality or safety of the product. High residual deformation may cause further internal damage to the material, thereby increasing the risk of damage in subsequent use, especially when the material is required to withstand cyclic loading.

[0048] By combining multiple indicators such as deformation, residual deformation and damage percentage, the quality of the lock can be evaluated more comprehensively, rather than relying on a single test result.

[0049] The data under maximum detection force and the reference data under maximum detection force are fused and analyzed to obtain the lock quality coefficient under maximum detection force, wherein the data under maximum detection force includes the average maximum force when the lock is damaged and the support time when the lock is not damaged under the maximum detection force, and the reference data under maximum detection force includes the reference average maximum force when the lock is damaged and the reference support time when the lock is not damaged under the maximum detection force.

[0050] The calculation formula of the lock quality coefficient under the maximum detection force is as follows:

[0051] ;

[0052] In the formula, is the lock quality coefficient under the maximum detection force, is the average maximum force when the lock is damaged, The length of time the buckle can be supported without damage under the maximum detection force. The reference average maximum force when the lock is damaged. The reference support time for the lock buckle to remain intact under the maximum detection force. is a natural constant.

[0053] The average maximum force indicates the maximum force that the lock can withstand before being damaged, and is an important parameter for measuring the strength of the material. The non-damage support time indicates the length of time that the lock can continue to withstand the force at the maximum test force without being damaged, reflecting the durability and stability of the material. By comparing the ratio of the measured value to the reference value, and then using an exponential function (based on the natural constant e) to amplify the impact of these ratios, a comprehensive quality coefficient is obtained. Using an exponential form can increase the sensitivity to exceeding or failing to meet the standard value, so that the coefficient can better reflect subtle quality differences. The reference data under the maximum detection force comes from the previous historical test data. The historical test data is averaged and stored in the database. It is defined as the reference data under the maximum detection force, which provides a benchmark for evaluating new test samples.

[0054] The average maximum force is the average maximum force of the lock when it is subjected to the maximum test force. It is an important indicator to measure its strength and carrying capacity. This parameter reflects the actual performance of the lock under extreme conditions and can intuitively reflect its tolerance and safety.

[0055] By combining the performance of the lock in terms of maximum force and continuous support time, a comprehensive performance evaluation is provided to ensure that the product can maintain performance under extreme conditions. The support time without damage measures the ability of the lock to continue to maintain its function under the maximum test force, reflects the durability and fatigue strength of the material, and can show the stability of the lock under long-term high-load use. The average maximum force and the support time without damage together determine the comprehensive performance of the lock. High strength (i.e., a larger average maximum force) indicates that the material can withstand a larger external force, while a longer support time indicates that the lock can continue to work stably under the maximum force. The relationship between these parameters reflects the comprehensive performance of the lock in actual use. For example, even if the lock is subjected to a large force in a short period of time, if it cannot maintain this state for a long time, it may fail early in actual application.

[0056] The comprehensive quality coefficient of the lock under each detection force is combined with the lock quality coefficient under the maximum detection force to obtain the tensile quality assessment index; the tensile quality assessment index is compared with the tensile quality assessment threshold stored in the database to determine whether the tensile quality assessment index is less than the tensile quality assessment threshold stored in the database: if the tensile quality assessment index is less than the tensile quality assessment threshold stored in the database, the tensile test result is that the tensile test is qualified; if the tensile quality assessment index is not less than the tensile quality assessment threshold stored in the database, the tensile test result is that the tensile test is unqualified.

[0057] The calculation formula of the tensile quality evaluation index is as follows:

[0058] ;

[0059] In the formula, is the tensile quality evaluation index, is the comprehensive quality coefficient of the lock under each test force, is the weight factor of the comprehensive quality coefficient of the lock under each detection force stored in the database, is the lock quality coefficient under the maximum detection force, It is the weight factor of the lock quality coefficient under the maximum detection force stored in the database.

[0060] In this embodiment, It is obtained by comparing the deformation, residual deformation and damage ratio under each test force with the reference value. It is obtained by comparing the average maximum force and support time under the maximum test force with the reference data. By weighted combination of these two quality coefficients, a comprehensive tensile quality evaluation index is obtained. By integrating the quality coefficients under each test force with the quality coefficient under the maximum test force, the performance of the lock under different load conditions can be comprehensively considered, which can more comprehensively reflect the tensile performance of the lock than the test under a single condition. By comparing with the stored threshold, it is possible to simply determine whether the lock meets the quality requirements. This method is clear and easy to implement, and can quickly determine whether it is qualified.

[0061] Weight factors stored in the database and , obtained by analyzing historical data, these data reflect the actual performance and relative importance of the buckle performance under each test force and the maximum test force. Through multivariate linear regression analysis of historical test results, the comprehensive quality coefficient of the buckle under each test force and the quality coefficient of the buckle under the maximum test force are used as independent variables, and the tensile quality is used as the dependent variable. The coefficient of the comprehensive quality coefficient of the buckle under each test force and the quality coefficient of the buckle under the maximum test force is determined, and the coefficient is defined as the weight factor and , so that the tensile quality assessment index more accurately reflects the importance of performance under different test conditions, thereby optimizing the scientificity and effectiveness of the lock quality assessment. The stored tensile quality assessment threshold is determined by analyzing a large amount of historical test data and actual usage. These data are statistically analyzed and regression modeled to identify the performance standards and critical values ​​of the lock under various conditions, which are defined as the tensile quality assessment threshold.

[0062] Specifically, the anti-fall quality of the lock is tested based on the lock anti-fall detection data to obtain the anti-fall detection result, including the following steps: fusing the lock anti-fall detection data with the lock anti-fall detection reference data stored in the database to obtain the lock anti-fall quality index, wherein the lock anti-fall detection reference data stored in the database includes the reference damage ratio of the lock under each drop force and the average reference deformation of the undamaged lock under each drop force; comparing the lock anti-fall quality index with the lock anti-fall quality threshold stored in the database to determine whether the lock anti-fall quality index is less than the lock anti-fall quality threshold stored in the database: if the lock anti-fall quality index is less than the lock anti-fall quality threshold stored in the database, the anti-fall detection result is that the anti-fall detection is qualified; if the lock anti-fall quality index is not less than the lock anti-fall quality threshold stored in the database, the anti-fall detection result is that the anti-fall detection is unqualified.

[0063] The buckle drop resistance test data is integrated and analyzed with the reference data stored in the database to obtain the buckle drop resistance quality index, which is a comprehensive comparison of the buckle's performance under different drop force conditions with the reference data. The calculated buckle drop resistance quality index is compared with the stored drop resistance quality threshold. The threshold is determined based on historical data and performance standards to determine whether the buckle meets the drop resistance quality requirements. If the quality index is less than the threshold, it is judged to be qualified in the drop resistance test; if the quality index is not less than the threshold, it is judged to be unqualified in the drop resistance test.

[0064] Using the stored threshold as the standard makes the anti-drop test results consistent and standardized, which can ensure that the quality judgment of the lock under different batches or different test conditions is relatively stable and fair. By fusing and analyzing the actual test data with the reference data, the performance of the lock under anti-drop conditions can be comprehensively evaluated, ensuring a comprehensive understanding of the lock's anti-drop performance.

[0065] The calculation formula of the lock buckle anti-fall quality index is as follows:

[0066] ;

[0067] In the formula, It is the anti-fall quality index of the lock. is the number of each wrestling force, , is the total number of wrestling forces, For the The percentage of buckle damage under falling force, For the Average deformation of the undamaged lock under a drop force, For the Reference damage ratio of lock buckle under falling force, For the first The average reference deformation of the undamaged lock under a certain drop force.

[0068] In this implementation scheme, the formula compares the actual damage percentage of the lock buckle under different drop force conditions and the average deformation of the undamaged lock buckle with the reference data. The reference data includes the reference damage percentage of the lock buckle under each drop force and the average reference deformation of the undamaged lock buckle. The reference data is obtained based on historical data, and the historical data is stored in the database after mean processing. The lock buckle anti-drop quality index is obtained by taking the logarithm of the ratio of the actual data to the reference data and averaging it. Logarithmic transformation helps to deal with situations with a large data range, so that data of different scales can be compared on the same scale, which improves the stability of data analysis. Logarithmic transformation can amplify small differences, making the test results more sensitive to small performance changes.

[0069] The damage percentage indicates the damage ratio of the lock under each drop force. This is an indicator that directly reflects the anti-drop performance of the lock. By comparing with the reference damage percentage, we can understand the gap between the actual lock performance and the standard requirements. The damage percentage can help determine the lock's tolerance under different drop force conditions, thereby evaluating its reliability in actual use. The average deformation of the undamaged lock indicates the deformation of the lock under the drop force. Compared with the reference deformation, it can be evaluated whether the deformation of the lock under the drop condition is as expected. By analyzing the deformation, it is possible to evaluate the stability and durability of the lock after being subjected to force, ensuring its reliability in actual applications.

[0070] The damage percentage and deformation amount are related because the degree of damage to the buckle is usually related to its deformation amount. A high deformation amount may lead to a higher damage percentage. An increase in deformation amount may indicate that the buckle's performance under the force of the drop is reduced, resulting in more damage. The damage percentage reflects the actual damage of the buckle, while the deformation amount reflects the stress deformation condition of the buckle. The combination of the two can more comprehensively evaluate the buckle's anti-drop performance, ensuring that it will neither deform excessively nor cause damage during use.

[0071] The formula integrates actual test data and reference data under multiple drop force conditions to provide a comprehensive evaluation of the buckle's drop resistance. This comprehensive approach can better reflect the buckle's performance under different conditions.

[0072] Specifically, the comprehensive tensile test results and the anti-fall test results are used to obtain the comprehensive quality test results of the lock and the test grade corresponding to the comprehensive quality test results of the lock, including the following steps: if the tensile test result is that the tensile test is qualified and the anti-fall test result is that the anti-fall test is qualified, then the comprehensive quality test result of the lock is qualified for the comprehensive test, and the comprehensive qualified test grade corresponding to the comprehensive test is determined according to the tensile quality evaluation index and the anti-fall quality index of the lock; if the tensile test result is that the tensile test is unqualified and the anti-fall test result is that the anti-fall test is unqualified, then the comprehensive quality test result of the lock is unqualified for the comprehensive test, and the comprehensive qualified test grade corresponding to the comprehensive test is determined according to the tensile quality evaluation index and the anti-fall quality index of the lock. The comprehensive unqualified inspection level corresponding to the comprehensive inspection failure is determined by the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the lock anti-fall quality index and the anti-fall quality threshold; if the tensile test result is that the tensile test is qualified and the anti-fall test result is that the anti-fall test is unqualified, or the tensile test result is that the tensile test is unqualified and the anti-fall test result is that the anti-fall test is qualified, then the comprehensive quality inspection result of the lock is a single test failure, and the single unqualified inspection level corresponding to the single test failure is determined according to the maximum value of the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the lock anti-fall quality index and the anti-fall quality threshold.

[0073] In this embodiment, when both the tensile test results and the anti-fall test results are qualified, the overall quality of the lock is rated as "comprehensive test qualified", which indicates that the lock meets the standards in both tensile and anti-fall aspects, and the overall quality is excellent. When both test results are unqualified, the overall quality of the lock is rated as "comprehensive test unqualified". At this time, the specific comprehensive unqualified level is determined by comparing the difference between the tensile quality evaluation index and the threshold value and the difference between the anti-fall quality index and the threshold value. This method can quantify the shortcomings of the lock and provide directions for improvement. When the tensile and anti-fall test results are inconsistent (i.e. one is qualified and the other is unqualified), the lock is rated as "single test unqualified". The single unqualified level is determined by calculating the maximum value of the difference between the tensile quality evaluation index and the threshold value and the difference between the anti-fall quality index and the threshold value. This method ensures that even if a certain test fails, the severity of the failure can be accurately reflected.

[0074] Determining the grade based on the tensile and drop quality indexes can accurately reflect the performance of the lock under comprehensive conditions and ensure that the quality standards meet the requirements. Based on the difference between the two test results, a detailed assessment of the overall quality of the lock is provided to help identify specific defects and formulate improvement measures. Judging the severity of a single failure by the maximum difference can effectively guide targeted improvements and improve the reliability of a single performance.

[0075] Combining the test results of tensile strength and drop resistance, a comprehensive evaluation of the quality of the lock is provided. This comprehensive perspective can more accurately judge the overall performance of the lock and avoid one-sided conclusions based on a single indicator. Dividing the test results into comprehensive test qualified, comprehensive test unqualified and single test unqualified can more accurately classify the quality status of the lock and facilitate the formulation of targeted improvement plans and maintenance strategies.

[0076] Specifically, the comprehensive qualified test level corresponding to the comprehensive test qualified according to the tensile quality evaluation index and the lock buckle anti-fall quality index includes the following steps: weighted summing the tensile quality evaluation index and the lock buckle anti-fall quality index to obtain a comprehensive quality index, and the calculation formula of the comprehensive quality index is as follows:

[0077] ;

[0078] In the formula, is the comprehensive quality index, is the tensile quality assessment index weight factor stored in the database, is the weight factor of the drop resistance quality index stored in the database; the comprehensive quality index is compared with the comprehensive qualified inspection levels corresponding to each comprehensive quality index stored in the database to obtain the comprehensive qualified inspection level corresponding to the comprehensive quality index.

[0079] In this embodiment, a comprehensive quality index is obtained by weighted summing the tensile quality evaluation index and the buckle anti-fall quality index. and They are the weight factors of the tensile quality assessment index and the drop quality index, respectively, reflecting the relative importance of these two indicators in the comprehensive evaluation. The logarithmic transformation is used to make the variation range of the comprehensive quality index more suitable for subsequent standardization and comparison, while avoiding the nonlinear growth problem of the weighted summation result. The calculated comprehensive quality index is compared with the comprehensive qualified inspection level stored in the database to determine the comprehensive qualified inspection level of the lock. This step corresponds the specific quality index value to the standard level to facilitate evaluation and classification in practical applications. Among them, the comprehensive qualified inspection level stored in the database is compared with the comprehensive qualified inspection level stored in the database to determine the comprehensive qualified inspection level of the lock. and According to the multiple linear regression analysis, the historical and history As an independent variable, history As the dependent variable, determine the history and history The regression coefficient is defined as the weight factor.

[0080] Specifically, the comprehensive unqualified detection level corresponding to the comprehensive detection failure is determined according to the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the lock buckle anti-fall quality index and the anti-fall quality threshold, including the following steps: the difference between the quality evaluation index and the tensile quality evaluation threshold and the difference between the lock buckle anti-fall quality index and the anti-fall quality threshold are merged to obtain a comprehensive quality unqualified index, and the calculation formula of the comprehensive quality unqualified index is as follows:

[0081] ;

[0082] In the formula, is the comprehensive quality failure index, is the difference between the quality assessment index and the tensile quality assessment threshold, is the difference between the lock's drop resistance quality index and the drop resistance quality threshold. is a natural constant; the comprehensive unqualified quality index is compared with the comprehensive unqualified detection levels corresponding to each comprehensive unqualified quality index stored in the database to obtain the comprehensive unqualified detection level corresponding to the comprehensive unqualified quality index.

[0083] In this embodiment, the difference between the quality assessment index and the tensile quality assessment threshold, as well as the difference between the lock buckle anti-fall quality index and the anti-fall quality threshold are first calculated. These two differences reflect the deviation between the tensile and anti-fall test results and the preset thresholds, respectively. The difference is exponentially transformed, where e is a natural constant. The purpose of this step is to convert the difference into an exponential form to more sensitively reflect the severity of the difference. This form can amplify larger differences and highlight more serious quality failures. The calculated comprehensive quality failure index is compared with the comprehensive failure detection level corresponding to each comprehensive quality failure index stored in the database. This process matches the specific quality failure index value with the standardized level, thereby determining the comprehensive failure detection level of the lock buckle.

[0084] The difference between tensile strength and drop resistance is integrated to consider the overall performance of the lock under different test conditions. This comprehensive evaluation method provides a more comprehensive quality assessment and avoids the limitation that a single indicator cannot fully reflect the quality of the product. Comparing the comprehensive quality failure index with the stored grade standards provides a standardized quality assessment result. This helps to convert complex quality data into grades that are easy to understand and apply, facilitating subsequent quality control and decision-making.

[0085] Specifically, the method of determining the single unqualified detection level corresponding to the single unqualified detection according to the maximum value of the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold comprises the following steps: determining the maximum value of the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold; if the maximum value is the difference between the tensile quality evaluation index and the tensile quality evaluation threshold, then comparing the difference between the tensile quality evaluation index and the tensile quality evaluation threshold with the tensile quality evaluation threshold values ​​of each tensile quality evaluation stored in the database; The single unqualified detection level corresponding to the difference between the anti-throw quality assessment index and the tensile quality assessment threshold is compared to obtain the single unqualified detection level corresponding to the difference between the tensile quality assessment index and the tensile quality assessment threshold; if the maximum value is the difference between the lock anti-fall quality index and the anti-fall quality threshold, then the difference between the lock anti-fall quality index and the anti-fall quality threshold is compared with the single unqualified detection level corresponding to the difference between the lock anti-fall quality index and the anti-fall quality threshold stored in the database to obtain the single unqualified detection level corresponding to the difference between the lock anti-fall quality index and the anti-fall quality threshold.

[0086] In this embodiment, first, the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold are calculated. These differences respectively represent the deviation between the tensile and anti-fall test results and the preset thresholds, reflecting which aspect of the two test indicators deviates more seriously from the standard. If the maximum difference is the difference between the tensile quality evaluation index and the tensile quality evaluation threshold, the difference between the tensile quality evaluation index and the tensile quality evaluation threshold is compared with the single unqualified test level corresponding to the tensile quality evaluation threshold difference stored in the database to determine the unqualified level of the tensile single test. If the maximum difference is the difference between the buckle anti-fall quality index and the anti-fall quality threshold, the difference between the buckle anti-fall quality index and the anti-fall quality threshold is compared with the single unqualified test level corresponding to the buckle anti-fall quality evaluation threshold difference stored in the database to determine the unqualified level of the anti-fall single test.

[0087] By selecting the maximum difference as the basis for single-item failure, the most serious quality problems can be highlighted, ensuring that the evaluation results accurately reflect the most prominent quality defects rather than being masked by smaller deviations. The maximum difference selection method helps determine which test indicator has a larger deviation, thereby providing a clear standard to judge the level of single failure. By focusing on the most serious deviations, resources can be effectively concentrated on the areas that need the most improvement, which helps to optimize quality control and improvement measures, and improve production efficiency and quality levels.

[0088] A detection device for lock quality detection method, such as Figure 2-Figure 6As shown, it includes a lock buckle structure tensile data detection module, a lock buckle structure anti-fall data detection module, a lock buckle structure quality data analysis module, a memory and a processor, wherein: the lock buckle structure tensile data detection module is used to obtain the lock buckle tensile detection data of the lock buckle structure to be detected, and the lock buckle tensile detection data includes the lock buckle tensile data under each detection force and the data under the maximum detection force; the lock buckle structure anti-fall data detection module is used to obtain the lock buckle anti-fall detection data of the lock buckle structure to be detected, and the lock buckle anti-fall detection data includes the percentage of lock buckle damage under each drop force and the average deformation of the undamaged lock buckle under each drop force; the lock buckle structure quality data analysis module is used to comprehensively analyze the tensile test results and the anti-fall test data. The invention discloses a method for detecting a lock buckle according to a plurality of detection results, and obtains a comprehensive quality detection result of the lock buckle and a detection level corresponding to the comprehensive quality detection result of the lock buckle, wherein the comprehensive quality detection result of the lock buckle includes a qualified comprehensive detection, an unqualified comprehensive detection and an unqualified single detection, wherein the qualified comprehensive detection corresponds to a qualified comprehensive detection level, the unqualified comprehensive detection corresponds to a unqualified comprehensive detection level, and the unqualified single detection corresponds to an unqualified single detection level; computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the lock buckle quality detection method as described above; the lock buckle structure to be detected includes a socket 1 and a buckle, and the socket 1 is plugged with the buckle.

[0089] The buckle is an external buckle 2, and an external snap-in position 3 is provided on the surface of the socket 1. An external snap-in hook 5 is fixedly connected to the surface of the external buckle 2. The socket 1 is movably connected to the external buckle 2, and the external snap-in hook 5 is snap-connected with the external snap-in position 3.

[0090] The socket 1 and the external buckle 2 are installed correspondingly, and the external card connection position 3 and the external card connection hook 5 are correspondingly connected, so that the socket 1 and the external buckle 2 can be installed together.

[0091] The buckle is an inner buckle 7, the surface of the socket 1 is provided with an inner snap-fitting protrusion 4, the surface of the inner buckle 7 is provided with an inner snap-fitting groove 6, the socket 1 is movably connected to the inner buckle 7, and the surface of the inner snap-fitting protrusion 4 is movably connected to the inner side wall of the inner snap-fitting groove 6.

[0092] The socket 1 and the inner buckle 7 are installed correspondingly, and the inner snap-fitting protrusion 4 is snap-fitted with the inner snap-fitting groove 6 correspondingly, so that the socket 1 and the inner buckle 7 can be installed together.

[0093] The socket 1 can achieve the effect of being compatible with the inner buckle 7 and the outer buckle 2, thereby improving the interchangeability and compatibility of the product and making the product more multifunctional.

[0094] An electronic device comprises: a processor and a memory, wherein computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the lock quality detection method as described above.

[0095] A computer-readable storage medium is used to store a program, and when the program is executed by a processor, the lock quality detection method as described above is implemented.

[0096] It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0097] The present invention is described with reference to flowcharts and / or block diagrams of systems, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0098] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0099] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0100] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0101] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for detecting the quality of a lock, characterized in that: The following steps are involved: Acquire the tensile test data of the lock buckle, test the tensile quality of the lock buckle based on the tensile test data, and obtain the tensile test result, wherein the tensile test result includes the tensile test failure and the tensile test pass, and the tensile test data of the lock buckle includes the tensile test data of the lock buckle under each test force and the data under the maximum test force; Acquire the anti-fall test data of the lock buckle, test the anti-fall quality of the lock buckle based on the anti-fall test data, and obtain the anti-fall test result, wherein the anti-fall test result includes the anti-fall test failure and the anti-fall test pass, and the anti-fall test data of the lock buckle includes the percentage of lock buckle damage under each drop force and the average deformation of the undamaged lock buckle under each drop force; Comprehensively combining the tensile test results and the drop test results, obtain the comprehensive quality test results of the lock buckle and the test grade corresponding to the comprehensive quality test results of the lock buckle, wherein the comprehensive quality test results of the lock buckle include comprehensive test qualified, comprehensive test unqualified and single test unqualified, wherein the comprehensive test qualified corresponds to the comprehensive qualified test grade, the comprehensive test unqualified corresponds to the comprehensive unqualified test grade, and the single test unqualified corresponds to the single unqualified test grade; The method of testing the tensile quality of the lock buckle based on the tensile test data of the lock buckle to obtain the tensile test result includes the following steps: Acquire buckle tensile test reference data stored in a database, wherein the buckle tensile test reference data stored in the database includes buckle tensile test reference data under various test forces and reference data under a maximum test force; The tensile strength data of the lock buckle under each detection force and the tensile strength reference data of the lock buckle under each detection force are integrated and analyzed to obtain the comprehensive quality coefficient of the lock buckle under each detection force, wherein the tensile strength data of the lock buckle under each detection force include the deformation of the lock buckle under each detection force, the residual deformation of the lock buckle under each detection force, and the damage ratio of the lock buckle under each detection force; the tensile strength reference data of the lock buckle under each detection force include the reference deformation of the lock buckle under each detection force, the reference residual deformation of the lock buckle under each detection force, and the reference damage ratio of the lock buckle under each detection force; The calculation formula of the comprehensive quality coefficient of the lock under each test force is as follows: Where i is the number of each detection force, i = 1, 2, 3, ..., n, n is the total number of detection forces, za i is the buckle deformation under the i-th detection force, pa i is the residual deformation of the lock under the i-th detection force, ab i is the percentage of lock damage under the i-th detection force, cza i is the reference deformation of the lock under the i-th detection force, cpa i is the reference residual deformation of the lock under the i-th test force, cab i is the reference damage ratio of the lock under the i-th detection force, GzX is the comprehensive quality coefficient of the lock under each detection force; The data under the maximum detection force and the reference data under the maximum detection force are integrated and analyzed to obtain the lock buckle quality coefficient under the maximum detection force, wherein the data under the maximum detection force includes the average maximum force when the lock buckle is damaged and the support time of the lock buckle without damage under the maximum detection force, and the reference data under the maximum detection force includes the reference average maximum force when the lock buckle is damaged and the reference support time of the lock buckle without damage under the maximum detection force; The calculation formula of the lock quality coefficient under the maximum detection force is as follows: Where ZzX is the quality coefficient of the lock under the maximum detection force, cZd is the average maximum force when the lock is damaged, ctd is the support time of the lock without damage under the maximum detection force, cz is the reference average maximum force when the lock is damaged, ct is the reference support time of the lock without damage under the maximum detection force, and e is a natural constant; The comprehensive quality coefficient of the buckle under each test force is combined with the quality coefficient of the buckle under the maximum test force to obtain the tensile quality evaluation index. The calculation formula of the tensile quality evaluation index is as follows: KZ=α1*GzX+α2*ZzX; Wherein, KZ is the tensile quality assessment index, GzX is the comprehensive quality coefficient of the lock under each test force, α1 is the weight factor of the comprehensive quality coefficient of the lock under each test force stored in the database, ZzX is the quality coefficient of the lock under the maximum test force, and α2 is the weight factor of the quality coefficient of the lock under the maximum test force stored in the database; Compare the tensile quality assessment index with the tensile quality assessment threshold stored in the database to determine whether the tensile quality assessment index is less than the tensile quality assessment threshold stored in the database: If the tensile quality assessment index is less than the tensile quality assessment threshold stored in the database, the tensile test result is that the tensile test is qualified; If the tensile quality assessment index is not less than the tensile quality assessment threshold stored in the database, the tensile test result is unqualified; The method of testing the anti-fall quality of the lock based on the anti-fall test data of the lock to obtain the anti-fall test result includes the following steps: The lock buckle anti-fall test data is integrated and analyzed with the lock buckle anti-fall test reference data stored in the database to obtain the lock buckle anti-fall quality index. The lock buckle anti-fall test reference data stored in the database includes the reference damage ratio of the lock buckle under each drop force and the average reference deformation of the undamaged lock buckle under each drop force. The calculation formula of the lock buckle anti-fall quality index is as follows: Where SsZ is the anti-fall quality index of the lock, j is the number of each fall force, j = 1, 2, 3, ..., m, m is the total number of fall forces, pb j is the percentage of buckle damage under the jth drop force, Zb j is the average deformation of the undamaged lock under the jth drop force, cpb j is the reference damage ratio of the lock buckle under the j-th fall force, czb j is the average reference deformation of the undamaged lock under the j-th drop force; Compare the lock buckle anti-drop quality index with the anti-drop quality threshold stored in the database to determine whether the lock buckle anti-drop quality index is less than the anti-drop quality threshold stored in the database: If the anti-drop quality index of the lock is less than the anti-drop quality threshold stored in the database, the anti-drop test result is qualified; if the anti-drop quality index of the lock is not less than the anti-drop quality threshold stored in the database, the anti-drop test result is unqualified; Obtaining the comprehensive quality test result of the lock buckle and the test level corresponding to the comprehensive quality test result of the lock buckle includes the following steps: If the tensile test result is qualified and the drop test result is qualified, then the comprehensive quality test result of the lock buckle is qualified, and the comprehensive qualified test level corresponding to the comprehensive test is determined according to the tensile quality evaluation index and the drop quality index of the lock buckle; If the tensile test result is unqualified and the drop test result is unqualified, the comprehensive quality test result of the lock buckle is unqualified, and the comprehensive unqualified test level corresponding to the comprehensive test failure is determined according to the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the drop quality index of the lock buckle and the drop quality threshold; If the tensile test result is that the tensile test is qualified and the anti-fall test result is that the anti-fall test is unqualified, or the tensile test result is that the tensile test is unqualified and the anti-fall test result is that the anti-fall test is qualified, then the comprehensive quality test result of the lock buckle is that the single test is unqualified, and the single unqualified test level corresponding to the single test failure is determined according to the maximum value of the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the lock buckle anti-fall quality index and the anti-fall quality threshold; Determining the comprehensive qualified test level corresponding to the comprehensive test qualification according to the tensile quality evaluation index and the lock buckle anti-fall quality index comprises the following steps: The tensile quality evaluation index and the buckle drop resistance quality index are weighted and summed to obtain a comprehensive quality index, and the calculation formula of the comprehensive quality index is as follows: KZz=ln(β1*KZ+β2*SsZ+1); Where KZz is the comprehensive quality index, β1 is the weight factor of the tensile quality evaluation index stored in the database, and β2 is the weight factor of the anti-fall quality index stored in the database; Compare the comprehensive quality index with the comprehensive qualified inspection levels corresponding to the comprehensive quality indexes stored in the database to obtain the comprehensive qualified inspection level corresponding to the comprehensive quality index; The method of determining the comprehensive unqualified detection level corresponding to the comprehensive detection failure according to the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the lock buckle drop resistance quality index and the drop resistance quality threshold comprises the following steps: The difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the buckle drop resistance quality index and the drop resistance quality threshold are combined to obtain a comprehensive quality failure index, and the calculation formula of the comprehensive quality failure index is as follows: Zb=(e-1) KZb+Ssb ; Wherein, Zb is the comprehensive quality unqualified index, KZb is the difference between the tensile quality assessment index and the tensile quality assessment threshold, Ssb is the difference between the lock anti-fall quality index and the anti-fall quality threshold, and e is a natural constant; The comprehensive unqualified quality index is compared with the comprehensive unqualified detection levels corresponding to each comprehensive unqualified quality index stored in the database to obtain the comprehensive unqualified detection level corresponding to the comprehensive unqualified quality index.

2. The lock quality detection method according to claim 1, characterized in that: The method of determining the single unqualified detection level corresponding to the single unqualified detection according to the maximum value of the difference between the tensile quality evaluation index and the tensile quality evaluation threshold and the difference between the buckle anti-fall quality index and the anti-fall quality threshold, comprises the following steps: Determine the maximum value of the difference between the tensile quality assessment index and the tensile quality assessment threshold and the difference between the buckle drop resistance quality index and the drop resistance quality threshold: If the maximum value is the difference between the tensile quality assessment index and the tensile quality assessment threshold, then the difference between the tensile quality assessment index and the tensile quality assessment threshold is compared with the single unqualified detection level corresponding to the difference between each tensile quality assessment index and the tensile quality assessment threshold stored in the database to obtain the single unqualified detection level corresponding to the difference between the tensile quality assessment index and the tensile quality assessment threshold; If the maximum value is the difference between the lock's anti-fall quality index and the anti-fall quality threshold, then the difference between the lock's anti-fall quality index and the anti-fall quality threshold is compared with the single unqualified detection level corresponding to the difference between the lock's anti-fall quality index and the anti-fall quality threshold stored in the database to obtain the single unqualified detection level corresponding to the difference between the lock's anti-fall quality index and the anti-fall quality threshold.

3. A detection device applied to the lock quality detection method according to any one of claims 1 to 2, characterized in that: It includes a lock structure tensile data detection module, a lock structure anti-fall data detection module, a lock structure quality data analysis module, a memory and a processor, wherein: The lock buckle structure tensile data detection module is used to obtain lock buckle tensile detection data of the lock buckle structure to be detected, and the lock buckle tensile detection data includes lock buckle tensile data under various detection forces and data under the maximum detection force; The lock buckle structure anti-fall data detection module is used to obtain the lock buckle anti-fall detection data of the lock buckle structure to be detected, and the lock buckle anti-fall detection data includes the percentage of lock buckle damage under each drop force and the average deformation of the undamaged lock buckle under each drop force; The lock buckle structure quality data analysis module is used to integrate the tensile test results and the drop test results to obtain the lock buckle comprehensive quality test results and the test level corresponding to the lock buckle comprehensive quality test results, wherein the lock buckle comprehensive quality test results include comprehensive test qualified, comprehensive test unqualified and single test unqualified, wherein the comprehensive test qualified corresponds to the comprehensive qualified test level, the comprehensive test unqualified corresponds to the comprehensive unqualified test level, and the single test unqualified corresponds to the single unqualified test level; Computer program instructions are stored in the memory, and when the computer program instructions are executed by the processor, the processor executes the lock buckle quality detection method according to any one of claims 1 to 2; The lock buckle structure to be detected comprises a socket (1) and a buckle, and the socket (1) is plugged into the buckle.

4. The detection device of the lock quality detection method according to claim 3 is characterized in that: The plug buckle is an external buckle (2), the surface of the socket (1) is provided with an external snap-in position (3), the surface of the external buckle (2) is fixedly connected with an external snap-in hook (5), the socket (1) and the external buckle (2) are movably connected, and the external snap-in hook (5) is snap-connected with the external snap-in position (3).

5. The detection device of the lock quality detection method according to claim 3 is characterized in that: The plug buckle is an inner buckle (7), the surface of the socket (1) is provided with an inner snap-fitting protrusion (4), the surface of the inner buckle (7) is provided with an inner snap-fitting groove (6), the socket (1) is movably connected to the inner buckle (7), and the surface of the inner snap-fitting protrusion (4) is movably connected to the inner side wall of the inner snap-fitting groove (6).

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