Comprehensive English Composition Quality Evaluation System Based on Large Language Models

Abstract

The present invention relates to the field of evaluation systems, and particularly to a comprehensive evaluation system for the quality of English compositions based on large language models, including a body, a touch screen, a housing, an industrial camera, a processor, an evaluation module, a pallet, a support frame, a curved groove, a storage groove, a pneumatic suction cup, rollers, a solenoid directional valve, etc. The present invention improves the recognition accuracy by deeply combining the composition quality evaluation elements with intelligent recognition and knowledge recognition algorithms, and optimizes the model performance by collecting the data after manual review through a data storage module. The data processing and conversion module processes and converts the data, and finally feeds it back to the AI recognition and detection module to optimize the model performance, so as to more accurately recognize when evaluating English compositions again. Under the condition of manual intervention, the recognition accuracy is improved to achieve more effective intelligent recognition and evaluation of the quality of English compositions, bringing convenience to the teaching work of teachers.

Description

Technical Field

[0001] The present invention relates to the field of evaluation systems, and more particularly to a comprehensive evaluation system for the quality of English compositions based on large language models. Background Art

[0002] Artificial intelligence refers to a system or software with certain intelligence manufactured by humans, which can imitate human intelligent behavior. It covers multiple fields and technologies, including but not limited to machine learning, natural language processing, computer vision, etc. Through these technologies, artificial intelligence can achieve various functions such as speech recognition, image recognition, autonomous driving, intelligent recommendation, etc. With the rapid development of artificial intelligence technology, the application of artificial intelligence has penetrated into various industries. In the field of education, especially with the rapid development of the information field, the ability of AI to generate graphics and texts has also developed rapidly. However, some students use AI tools to automatically write English compositions, making it impossible for parents and teachers to identify and evaluate. In response to this problem, the existing solutions are based on big data matching and comparison, and some general algorithms are used in grammar recognition and sentence pattern application, but they do not fully meet the requirements of the composition topics and elements. Therefore, it is difficult to effectively and truly identify and evaluate the quality of English compositions, bringing inconvenience to the teaching work of teachers. Summary of the Invention

[0003] Therefore, to solve the above deficiencies, the present invention provides a comprehensive evaluation system for the quality of English compositions based on large language models to solve the above technical problems.

[0004] To achieve the above object, the present invention adopts the following technical solutions: A comprehensive evaluation system for the quality of English compositions based on large language models, including a body, a touch screen and a housing embedded in the top surface of the body, an inlet opened on the side surface of the body, an industrial camera and a processor installed in the housing, an evaluation module is provided in the processor, the processor is electrically connected to the industrial camera, and a partition frame is installed on one side of the body close to the inlet;

[0005] A first electric push rod is installed at the inner bottom of the partition frame, a tray slidably installed in the partition frame is connected to the piston rod of the first electric push rod, a spacing is provided between the partition frame and the inner wall of the body to form a storage groove, the tray is located below the industrial camera, and the tray is used to support English homework papers;

[0006] A handling component is provided in the body, and the handling component is used to transport English homework papers into the storage groove;

[0007] The evaluation module includes an input module disposed within the processor, a preprocessing module electrically connected to the input module, an AI recognition and detection module connected to the preprocessing module, an external vocabulary detection module electrically connected to the AI recognition and detection module, a completion status evaluation module connected to the output end of the external vocabulary detection module, and a quality evaluation module connected to the completion status evaluation module. The input module is electrically connected to the touch screen and is used for inputting elements of external evaluation. The output end of the quality evaluation module is connected to a manual correction evaluation module, the output end of the manual correction evaluation module is connected to an output module and a data storage module, the data storage module is connected to the input end of the touch screen, and the data storage module is connected to the input end of the data processing and conversion module. The data processing and conversion module is connected to the input end of the AI recognition and detection module;

[0008] The first electric push rod is electrically connected to the processor.

[0009] Preferably, an outlet is provided on the side wall of the body, and the outlet communicates with the inner side of the storage groove.

[0010] Preferably, the bottom of the housing is of an open structure, and a transparent plate is installed at the bottom of the housing, and the transparent plate is located below the industrial camera.

[0011] Preferably, a lighting lamp is installed inside the housing, the lighting lamp is located outside the industrial camera, and the lighting end of the lighting lamp faces downward.

[0012] Preferably, a motor is installed inside the housing, the output shaft of the motor passes through the transparent plate movably, a cleaning cotton brush that fits against the bottom end face of the transparent plate is installed on the output shaft of the motor, and the motor is electrically connected to the processor.

[0013] Preferably, the top surface of the partition frame is flush with the bottom inside the inlet.

[0014] Preferably, the handling assembly includes a support frame and an air pump installed on the inner wall of the machine body and above the storage groove, a second electric push rod fixedly installed inside the support frame, a sliding plate movably installed inside the support frame, a push-pull round rod installed on the piston rod of the second electric push rod, a fixed cylinder installed at the bottom of the sliding plate, a hollow plate installed on the side wall of the sliding plate and close to one end of the second electric push rod, a pneumatic suction cup arranged inside the fixed cylinder, an expansion hose is inserted into the air outlet end of the air pump, an electromagnetic reversing valve is installed on the expansion hose, and the end of the expansion hose away from the air pump is connected to the air inlet end of the pneumatic suction cup. A roller is rotatably installed at each of the front and rear ends of the sliding plate, and the roller is in rolling connection with the inner side of a curved groove formed on the inner wall of the support frame. The end of the curved groove close to the support plate extends obliquely downward. The push-pull round rod is movably inserted into the inside of the hollow plate. The second electric push rod, the air pump, and the electromagnetic reversing valve are all electrically connected to the processor.

[0015] Preferably, the bottom end surface of the pneumatic suction cup is lower than the bottom end surface of the fixed cylinder. The upper end of the pneumatic suction cup is movably connected to the inner side of the fixed cylinder, and a spring is installed on the top end surface of the pneumatic suction cup. The end of the spring away from the pneumatic suction cup is connected to the inner top of the fixed cylinder.

[0016] Preferably, a reflective photoelectric position sensor is installed at the inner bottom of the partition frame and the left end of the inner side of the support frame respectively, and a reflective sticker is installed on the bottom end surface of the support plate and the left end surface of the sliding plate respectively. The two reflective photoelectric position sensors and the two reflective stickers correspond one by one.

[0017] Preferably, the width of the inner side of the hollow plate in the left-right direction corresponds to the outer diameter of the push-pull round rod, and the length of the inner side of the hollow plate in the up-down direction is much larger than the outer diameter of the push-pull round rod.

[0018] Advantages of the present invention:

[0019] 1. By deeply combining the composition quality evaluation elements with intelligent recognition through algorithms, the present invention improves the recognition accuracy. And by collecting the data after manual review through the data storage module to optimize the model performance, the data processing and conversion module processes and converts the data, and finally feeds it back to the AI recognition and detection module to optimize the model performance, so as to more accurately recognize when evaluating English compositions again. Under the condition of manual intervention, the recognition accuracy is improved to realize more effective intelligent recognition and evaluation of the quality of English compositions, which brings convenience to the teaching work of teachers.

[0020] 2. By setting up the handling component, the present invention facilitates the quick handling and collection of the evaluated English homework, reduces the manual workload, and improves the work efficiency.

[0021] 3. By setting up the transparent plate, the present invention provides protection for the industrial camera, reduces the adhesion of external dust and impurities to the shooting end of the industrial camera, and improves the accuracy during the shooting process of the industrial camera. Description of the drawings

[0022] Figure 1 is the front view sectional structure schematic diagram of the comprehensive evaluation system of the present invention;

[0023] Figure 2 is the structure schematic diagram of the evaluation module of the present invention;

[0024] Figure 3 is the structure schematic diagram of the handling component of the present invention;

[0025] Figure 4 is the side view connection structure schematic diagram of the sliding plate of the present invention.

[0026] Wherein: body - 1, touch screen - 2, housing - 3, industrial camera - 4, inlet - 5, outlet - 6, partition - 7, processor - 8, evaluation module - 9, input module - 901, pre - processing module - 902, AI recognition and detection module - 903, external vocabulary detection module - 904, completion status evaluation module - 905, quality evaluation module - 906, manual correction evaluation module - 907, output module - 908, data storage module - 909, data processing and conversion module - 9010, first electric push rod - 10, pallet - 11, reflective photoelectric position sensor - 12, reflective sticker - 13, support frame - 14, second electric push rod - 15, motor - 16, cleaning cotton brush - 17, transparent plate - 18, lighting lamp - 19, curved groove - 20, storage slot - 21, air pump - 22, telescopic hose - 23, sliding plate - 24, fixed cylinder - 25, pneumatic suction cup - 26, spring - 27, roller - 28, electromagnetic directional valve - 29, push - pull round rod - 30, hollow plate - 31. Detailed implementation mode

[0027] In order to further explain the technical solution of the present invention, the following will be elaborated in detail through specific embodiments.

[0028] As Figure 1 shown, the present invention provides an English composition quality comprehensive evaluation system based on a large - language model, including a body 1, a touch screen 2 fixedly embedded in the top surface of the body 1, a housing 3, an inlet 5 opened on the left end surface of the body 1, an industrial camera 4 and a processor 8 installed in the housing 3. An evaluation module 9 is arranged in the processor 8, and the processor 8 is electrically connected to the industrial camera 4;

[0029] As Figure 1 and Figure 2 shown, in this embodiment, a partition 7 is locked and fixed at the left end inside the body 1;

[0030] A first electric push rod 10 is installed at the bottom inside the partition 7. A pallet 11 connected to the piston rod of the first electric push rod 10 is slidably installed in the partition 7, so as to drive the pallet 11 to move vertically in the partition 7 through the first electric push rod 10. A spacing is provided between the right end surface of the partition 7 and the right end inside the body 1 to form a storage slot 21. The pallet 11 is located below the industrial camera 4, and the pallet 11 is used to provide support for English homework papers;

[0031] A handling component is arranged inside the body 1, and the handling component is used to handle English homework papers into the storage slot 21;

[0032] The evaluation module 9 includes an input module 901 disposed within the processor 8, a preprocessing module 902 electrically connected to the input module 901, an AI recognition and detection module 903 connected to the preprocessing module 902, an external vocabulary detection module 904 electrically connected to the AI recognition and detection module 903, a completion status evaluation module 905 connected to the output end of the external vocabulary detection module 904, and a quality evaluation module 906 connected to the completion status evaluation module 905;

[0033] The input module 901 is electrically connected to the touch screen 2. The input module 901 is used to input the elements of external evaluation. The output end of the quality evaluation module 906 is connected to a manual correction evaluation module 907. The output end of the manual correction evaluation module 907 is connected to an output module 908 and a data storage module 909. The data storage module 909 is connected to the input end of the touch screen 2. The data storage module 909 is connected to the input end of a data processing and conversion module 9010. The data processing and conversion module 9010 is connected to the input end of the AI recognition and detection module 903;

[0034] The first electric push rod 10 is electrically connected to the processor 8;

[0035] The touch screen 2 is used to operate the electrical devices in the entire system, perform manual evaluation operations on the displayed English composition, and display the quality evaluation results of the English composition;

[0036] The input module 901 is used to receive and process basic information such as the grade of the user, whether it is a major, the composition topic, and the composition requirements;

[0037] The preprocessing module 902 receives the composition text submitted by the students photographed by the industrial camera 4 and performs preliminary processing on the image information to obtain corresponding data information;

[0038] The AI recognition and detection module 903 adopts a language model based on deep learning. In this embodiment, GPT is used, which is used to identify which parts of the composition may be generated by AI;

[0039] The external vocabulary detection module 904 has a built-in vocabulary database, a matching engine, and a context understanding module, which is a prior art and is used to calculate how many external vocabulary or phrases are cited in the English composition;

[0040] The completion status evaluation module 905 evaluates the overall independent completion degree of the composition according to multiple indicators such as the amount of AI-generated content and student information in the detected English composition, and a detailed composition quality evaluation report is provided by the subsequent quality evaluation module 906. Through the set manual correction evaluation module 907, teachers are allowed to review the results of machine evaluation through the evaluation results displayed on the touch screen 2 and make necessary adjustments;

[0041] The data storage module 909 collects the data after manual review. The data processing and conversion module 9010 processes and converts the collected data after manual review, and transmits the processed and converted data to the AI recognition and detection module 903. By feeding back to the AI recognition and detection module 903, the model performance can be optimized, so that the AI-generated part in English compositions can be more accurately recognized and evaluated in the next composition evaluation work.

[0042] Among them, the top surface of the partition frame 7 is flush with the inner bottom of the inlet 5, which is convenient for importing the English composition paper onto the partition frame 7 through the inlet 5.

[0043] In this embodiment, an outlet 6 is opened on the side wall of the body 1, and the outlet 6 communicates with the inside of the storage slot 21, which is convenient for taking out the English composition paper stored in the storage slot 21 through the outlet 6.

[0044] In this embodiment, the bottom of the housing 3 is an open structure, and a transparent plate 18 is installed at the bottom of the housing 3. The transparent plate 18 is located below the industrial camera 4. The transparent plate 18 is for the industrial camera 4 to prevent dust and impurities from adhering to the shooting end of the industrial camera 4, improving the clarity of the English composition captured by the industrial camera 4. The transparent plate 18 is made of high-quality acrylic material, which has good optical performance and can provide a clear field of view.

[0045] In this embodiment, a lighting lamp 19 is installed inside the housing 3. The lighting lamp 19 is located outside the industrial camera 4, and the lighting end of the lighting lamp 19 faces downwards, which is convenient for supplementing light to the English composition paper, so that the industrial camera 4 can capture the content on the English composition paper more clearly.

[0046] In this embodiment, a motor 16 is installed inside the housing 3. The output shaft of the motor 16 passes through the transparent plate 18 movably. A cleaning cotton brush 17 that fits the bottom end surface of the transparent plate 18 is installed on the output shaft of the motor 16. The motor 16 is electrically connected to the processor 8, which is convenient for starting the motor 16 to drive the cleaning cotton brush 17 to rotate to clean the dust and impurities at the bottom of the transparent plate 18, so that the industrial camera 4 can capture more clearly.

[0047] As Figure 3 and Figure 4 shown, in this embodiment, the handling component includes a support frame 14 locked and fixed to the right end inside the body 1 and above the storage slot 21, an air pump 22, a second electric push rod 15 fixedly installed at the right end inside the support frame 14, a sliding plate 24 movably installed inside the support frame 14, the sliding plate 24 can move inside the support frame 14, a push-pull round rod 30 installed on the piston rod of the second electric push rod 15, a fixed cylinder 25 fixedly installed at the bottom of the sliding plate 24, a hollow plate 31 installed on the right end surface of the sliding plate 24, and a pneumatic suction cup 26 arranged inside the fixed cylinder 25. The pneumatic suction cup 26 is used to adsorb the English composition paper to cooperate with the second electric push rod 15 to handle and convey the English composition paper.

[0048] The air outlet end of the air pump 22 is plugged with a telescopic hose 23. An electromagnetic reversing valve 29 is installed on the telescopic hose 23, and the end of the telescopic hose 23 far from the air pump 22 is connected to the air inlet end of the pneumatic suction cup 26. A roller 28 is rotatably installed at each of the front and rear ends of the sliding plate 24;

[0049] The roller 28 is in rolling connection with the inner side of the curved groove 20 formed in the inner wall of the support frame 14. The inner left end of the curved groove 20 extends obliquely downward, facilitating the roller 28 to move downward along the inner left end of the curved groove 20, so as to drive the sliding plate 24, the fixed cylinder 25 and the pneumatic suction cup 26 to move downward to contact the top surface of the English composition paper. The push-pull round rod 30 is movably inserted into the inner side of the hollow plate 31, so as to drive the sliding plate 24 to move in the support frame 14 by means of the cooperation of the push-pull round rod 30 and the hollow plate 31. The second electric push rod 15, the air pump 22 and the electromagnetic reversing valve 29 are all electrically connected to the processor 8;

[0050] Wherein, a reflective photoelectric position sensor 12 is installed at the inner bottom of the partition frame 7 and the inner left end of the support frame 14 respectively. A reflective sticker 13 is installed at the bottom end surface of the support plate 11 and the left end surface of the sliding plate 24 respectively. The two reflective photoelectric position sensors 12 and the two reflective stickers 13 correspond one by one. The reflective photoelectric position sensor 12 in the partition frame 7 corresponds to the reflective sticker 13 at the bottom of the support plate 11, and the reflective photoelectric position sensor 12 in the support frame 14 corresponds to the reflective sticker 13 on the sliding plate 24, so as to accurately position the support plate 11 and the sliding plate 24 by means of the cooperation of the reflective photoelectric position sensor 12 and the reflective sticker 13;

[0051] In this embodiment, the bottom end surface of the pneumatic suction cup 26 is lower than the bottom end surface of the fixed cylinder 25. The upper end of the pneumatic suction cup 26 is movably connected to the inner side of the fixed cylinder 25, and a spring 27 is installed on the top end surface of the pneumatic suction cup 26. The end of the spring 27 far from the pneumatic suction cup 26 is connected to the inner top of the fixed cylinder 25, reducing the hard contact of the pneumatic suction cup 26 with the English paper;

[0052] In this embodiment, the width of the inner side of the hollow plate 31 in the left-right direction corresponds to the outer diameter of the push-pull round rod 30, and the length of the inner side of the hollow plate 31 in the up-down direction is much larger than the outer diameter of the push-pull round rod 30, facilitating the push-pull round rod 31 to still apply a pushing and pulling force to the hollow plate 31 when the sliding plate 24 and the hollow plate 31 are adjusted in the vertical height in the support frame 14;

[0053] Specifically, the pallet 11 provides support for the English composition paper. When placed, the English composition paper is located at the upper right end of the pallet 11 and below the industrial camera 4. After the evaluation of the English composition is completed, the second electric push rod 15 is controlled to drive the push-pull round rod 30 to move. The push-pull round rod 30 cooperates with the hollow plate 31 to drive the sliding plate 24 to move within the support frame 14. The sliding plate 24 drives the roller 28 to roll along the inner side of the curved groove 20. Since the left end of the curved groove 20 extends obliquely downward, when the roller 28 enters the left end of the inner side of the curved groove 20, the height of the sliding plate 24, the fixed cylinder 25, and the pneumatic suction cup 26 decreases. The reflective photoelectric position sensor 12 within the support frame 14 cooperates with the reflective sticker 13 on the sliding plate 24 to detect the position of the sliding plate 24, thereby determining the position of the pneumatic suction cup 26. When it is detected that the position of the pneumatic suction cup 26 reaches the English composition paper, the air pump 22 starts to work, and the electromagnetic directional valve 29 switches to the position where compressed air enters the pneumatic suction cup 26. A negative pressure is formed inside the pneumatic suction cup 26, thereby adsorbing the English composition paper.

[0054] Then, the piston rod of the second electric push rod 15 retracts to drive the pneumatic suction cup 26 and the English composition paper to move rightward above the storage groove 21. The electromagnetic directional valve 29 switches to the position where the pneumatic suction cup 26 communicates with the atmosphere, or directly cuts off the compressed air supply. The negative pressure inside the pneumatic suction cup 26 disappears, and the English composition paper is released into the storage groove 21. In this way, the cycle is completed to evaluate the quality of more English compositions. Moreover, the first electric push rod 10 can be activated to drive the pallet 11 to move upward, so that the pallet 11 drives the English composition paper to move upward, facilitating the stable contact between the pneumatic suction cup 26 and the English composition paper and improving the intelligence of the evaluation system.

[0055] The present invention provides a comprehensive evaluation system for the quality of English compositions based on large language models. By deeply integrating the composition quality evaluation elements with intelligent recognition through algorithms, the recognition accuracy is improved. And through the data storage module 9010, the data after manual review is collected to optimize the model performance. The data processing and conversion module 9010 processes and converts the data and finally feeds it back to the AI recognition and detection module 903 to optimize the model performance, so as to more accurately identify when evaluating English compositions again. Under the condition of manual intervention, the recognition accuracy is improved to achieve more effective intelligent recognition and evaluation of the quality of English compositions, bringing convenience to the teaching work of teachers.

[0056] The above are only the preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An English composition quality comprehensive evaluation system based on a large language model, comprising a body, a touch screen and a housing embedded in the top surface of the body, an inlet opened on the side surface of the body, an industrial camera and a processor installed in the housing, wherein an evaluation module is provided in the processor, and the processor is electrically connected to the industrial camera; It is characterized in that A partition frame is installed on one side of the body close to the inlet; A first electric push rod is installed at the inner bottom of the partition frame, a support plate connected to the piston rod of the first electric push rod is slidably installed in the partition frame, a spacing is set between the partition frame and the inner wall of the body to form a storage slot, the support plate is located below the industrial camera, and the support plate is used to provide support for the English homework paper; The machine body is provided with a transport component, which is used to transport the English homework paper into the storage tank; The evaluation module includes an input module arranged in the processor, a preprocessing module electrically connected to the input module, an AI recognition detection module connected to the preprocessing module, an external vocabulary detection module electrically connected to the AI ​​recognition detection module, a completion evaluation module connected to an output end of the external vocabulary detection module, and a quality evaluation module connected to the completion evaluation module, the input module is electrically connected to the touch screen, the input module is used to input external evaluation elements, the output end of the quality evaluation module is connected to the manual correction evaluation module, the output end of the manual correction evaluation module is connected to the output module and the data storage module, the data storage module is connected to the input end of the touch screen, the data storage module is connected to the input end of the data processing conversion module, and the data processing conversion module is connected to the input end of the AI ​​recognition detection module; The first electric push rod is electrically connected to the processor; The conveying assembly includes a support frame and an air pump installed on the inner wall of the machine body and located above the storage tank, a second electric push rod fixed in the support frame, a slide movably installed in the support frame, a push-pull round rod installed on the piston rod of the second electric push rod, a fixed cylinder installed at the bottom of the slide, a hollow plate installed on the side wall of the slide and close to one end of the second electric push rod, and a pneumatic suction cup arranged in the fixed cylinder. The air outlet end of the air pump is plugged with a telescopic hose, an electromagnetic reversing valve is installed on the telescopic hose, and the end of the telescopic hose away from the air pump is connected to the air inlet end of the pneumatic suction cup. A roller is rotatably installed on each of the front and rear ends of the slide, and the roller is rollingly connected to the inner side of a curved groove opened on the inner wall of the support frame. The curved groove extends obliquely downward at one end close to the support plate. The push-pull round rod is movably inserted into the inner side of the hollow plate, and the second electric push rod, the air pump and the electromagnetic reversing valve are all electrically connected to the processor.

2. The English composition quality comprehensive evaluation system based on the large language model according to claim 1 is characterized by: The side wall of the machine body is provided with an outlet which is communicated with the inner side of the storage tank.

3. The English composition quality comprehensive evaluation system based on the large language model according to claim 1 is characterized by: The bottom of the shell is an open structure, and a transparent plate is installed on the bottom of the shell, and the transparent plate is located below the industrial camera.

4. The English composition quality comprehensive evaluation system based on the large language model according to claim 1 is characterized by: A lighting lamp is installed in the shell, the lighting lamp is located outside the industrial camera, and the lighting end of the lighting lamp faces downward.

5. The English composition quality comprehensive evaluation system based on the large language model according to claim 3 is characterized by: A motor is installed in the shell, and the output shaft of the motor moves through the transparent plate. A cleaning cotton brush that fits the bottom end surface of the transparent plate is installed on the output shaft of the motor. The motor is electrically connected to the processor.

6. The English composition quality comprehensive evaluation system based on the large language model according to claim 1 is characterized by: The top end surface of the partition frame is flush with the inner bottom of the inlet.

7. The English composition quality comprehensive evaluation system based on the large language model according to claim 1 is characterized by: The bottom end surface of the pneumatic suction cup is lower than the bottom end surface of the fixed cylinder, the upper end of the pneumatic suction cup is movably connected to the inner side of the fixed cylinder, and a spring is installed on the top end surface of the pneumatic suction cup, and one end of the spring away from the pneumatic suction cup is connected to the inner top of the fixed cylinder.

8. The English composition quality comprehensive evaluation system based on the large language model according to claim 1 is characterized by: A reflective photoelectric position sensor is installed at the inner bottom of the partition frame and the inner left end of the support frame, and a reflective sticker is installed at the bottom end surface of the support plate and the left end surface of the slide plate. The two reflective photoelectric position sensors correspond to the two reflective stickers one by one.

9. The English composition quality comprehensive evaluation system based on a large language model according to claim 1 is characterized by: The width of the inner side of the hollow plate in the left-right direction corresponds to the outer diameter of the push-pull round rod, and the length of the inner side of the hollow plate in the up-down direction is much larger than the outer diameter of the push-pull round rod.

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