Intelligent agricultural batch market goods transaction equipment and use method thereof

Abstract

The embodiment of the invention provides intelligent agricultural batch market goods transaction equipment and a use method thereof. The equipment comprises a base, a control unit, a camera, a weighing table, a track, an opening, a plurality of track cars and a plurality of placement tables, the weighing platform is connected to the base, the base is connected with the control unit, the camera is connected to the control unit, the track is laid above the base and the weighing platform, and the multiple track cars run along the track. And the camera is used for shooting an image on the placing table which is weighed at present and analyzing the types of fruits and vegetables through the control unit. The invention relates to the field of special equipment for intelligent transportation of agricultural products. Meanwhile, images of the fruits and vegetables on the placing table are shot by the camera, and the control unit automatically identifies the types of the fruits and vegetables through an image analysis algorithm, so that the problem of misjudgment during manual identification of the fruits and vegetables (such as pumpkins of different varieties) with similar appearances is solved.

Description

Technical Field

[0001] The present invention relates to the field of special equipment for intelligent transportation of agricultural products, and specifically refers to intelligent agricultural wholesale market goods trading equipment and a method for using the same. Background Art

[0002] For the inbound and outbound delivery of fruits and vegetables at wholesale agricultural markets, weighing and identifying the product category are key steps to ensure transaction accuracy and efficient inventory management. Currently, for heavier or larger quantities of fruits and vegetables like winter melons, pumpkins, watermelons, and potatoes, the market generally relies on manually operated machinery to transport them to weighing equipment, where they are then weighed and recorded manually.

[0003] This traditional weighing method presents numerous problems when handling fruits and vegetables. First, the frequent handling of fruits and vegetables to the weighing equipment can easily cause accelerated wear on the equipment's load-bearing components, shortening the equipment's lifespan and increasing maintenance costs. Manual handling of fruits and vegetables using conventional commercial weighing equipment is extremely labor-intensive, increasing the physical burden on workers and reducing operational efficiency while also creating the risk of injury from improper handling. Furthermore, manual category identification is prone to misjudgment when dealing with visually similar fruits and vegetables (such as different varieties of pumpkin), impacting inventory data accuracy and subsequent transaction settlement.

[0004] With the advancement of intelligent and automated wholesale agricultural markets, traditional manual weighing methods are no longer able to meet the market's demand for efficient and precise management of fruits and vegetables. Therefore, developing a device that can automatically transport fruits and vegetables and accurately weigh and identify categories is key to solving the problems of low efficiency, large errors, and high safety risks in the existing warehousing and outbound processes in wholesale agricultural markets. It is also an important direction for promoting the intelligent upgrading of wholesale agricultural markets. Summary of the Invention

[0005] According to an embodiment of the present invention, an intelligent agricultural wholesale market commodity trading device and a method for using the same are provided to solve the technical problems existing in the above-mentioned background technology.

[0006] In a first aspect of the present invention, an intelligent agricultural wholesale market goods trading device is provided.

[0007] The intelligent agricultural wholesale market goods trading equipment includes a base, a control unit, a camera, a weighing platform, a track, an opening, multiple track cars and multiple placement platforms; The weighing platform is connected to the base, the base is connected to the control unit, the camera is connected to the control unit, the track is laid above the base and the weighing platform, a plurality of rail cars travel along the track, a plurality of placement platforms are respectively arranged in a plurality of rail cars, and the opening is opened on the track; The placement table can pass through the opening and fall onto the weighing table for weighing. The camera is used to capture an image of the placement table currently being weighed and analyze the category of fruits and vegetables through the control unit.

[0008] Preferably, it also includes a slider, a back plate and a slide groove; The slider is connected to the placement table, the chute is opened on the back plate, the back plate is connected to the rail car, the slider is connected to the chute, the slider and the chute match in size and can limit the placement table to move only in the vertical direction.

[0009] Preferably, it further comprises two supporting mechanisms and four shock absorbing mechanisms, wherein the four shock absorbing mechanisms are connected to the placement table, and two supporting mechanisms are connected to the rail vehicle, and each supporting mechanism is used to support two shock absorbing mechanisms respectively, and the shock absorbing mechanism comprises a connecting plate, a first top plate, a second top plate, a limiting rod, a first spring, a blocking member, and a limiting groove; The connecting plate is connected to the placing table, the connecting plate is connected to the first top plate, the first top plate is connected to the limiting rod, the limiting rod is slidably connected to the second top plate, the limiting groove is provided on the connecting plate, the second top plate is slidably connected to the limiting groove, the first spring is sleeved on the limiting rod, the two ends of the first spring are respectively connected between the first top plate and the second top plate, and the blocking is connected to the bottom end of the limiting rod; Wherein, the supporting mechanism is used to support the bottom end surface of the second top plate.

[0010] Preferably, the support mechanism includes a transmission plate, two first connecting rods, two second connecting rods, two limit frames, two through slots, four rotating shafts, two first support rods, two second support rods, a bracket, two support blocks, two rod bodies, two side plates and two dampers; The transmission plate is rotatably connected to the two first connecting rods respectively, the two first connecting rods are rotatably connected to the two second connecting rods respectively, the second connecting rod is connected to the limit frame, the through slot is processed on the limit frame, the two rotating shafts are slidably connected to the through slot, the limit frame is connected to the rod body, the rod body is slidably connected to the bracket, the rod body is connected to the side plate, the damper is connected between the side plate and the bracket, the two rotating shafts are rotatably connected to the first support rod and the second support rod respectively, the first support rod is rotatably connected to the rail car, the first support rod is rotatably connected to the second support rod, the second support rod is rotatably connected to the support block, and the support block is slidably connected to the limiting slot.

[0011] Preferably, the support mechanism further includes a second spring, the second spring is sleeved on the rod body, and two ends of the second spring are respectively connected to the bracket and the side plate.

[0012] Preferably, it further comprises two triggering mechanisms for triggering the transmission disc to rotate, the triggering mechanism comprising a frame, a first rack, a first gear and a shaft; The frame is connected to the base, and the frame does not affect the movement of the rail car and the placement platform on the track. The inner side of the frame is connected to the first rack, the first rack is engaged with the first gear, the first gear is connected to the shaft, the shaft is connected to the transmission disk, and the shaft is rotatably connected to the back plate.

[0013] Preferably, the weighing machine further comprises a first linkage mechanism, a second linkage mechanism and a cleaning mechanism, wherein the first linkage mechanism is connected to the rail car, and when the rail car moves, the first linkage mechanism is used to trigger the second linkage mechanism and the cleaning mechanism to clean the weighing surface of the weighing platform, and the first linkage mechanism comprises a connecting rod, a contact plate, a support, a main shaft and a first torsion spring; The connecting rod is connected to the main shaft, the main shaft is rotatably connected to the support, the support is connected to the contact plate, the first torsion spring is sleeved on the main shaft, and both ends of the first torsion spring are respectively connected to the connecting rod and the support; The second linkage mechanism includes a trigger block, a first slide rail, a second rack, a first guide block, a second gear, a support shaft, a second torsion spring, a vertical plate, a third rack, a second guide block and a second slide rail; The contact plate can contact the trigger block during the movement process, the trigger block is connected to the second rack, the second rack is connected to the first guide block, the first guide block is slidably connected to the first slide rail, the second rack is meshed with the second gear, the second gear is connected to the support shaft, the support shaft is connected to the base, the second torsion spring is sleeved on the support shaft, the two ends of the second torsion spring are respectively connected to the top of the base and the bottom of the second gear, the second gear is meshed with the third rack, the third rack is connected to the second guide block, the second guide block is slidably connected to the second slide rail, and the second slide rail and the first slide rail are connected to the base.

[0014] Preferably, the cleaning mechanism includes a scraper, a guide rod and a guide seat; The scraper is connected to the vertical plate in the second linkage mechanism, the scraper is connected to the guide rod, the guide rod is slidably connected to the guide seat, and the guide seat is connected to the base. The scraper can clear the debris on the weighing platform when moving.

[0015] In a second aspect of the present invention, a method for using intelligent agricultural wholesale market goods trading equipment is provided.

[0016] The preparation method comprises the following steps: Placing fruits and vegetables: Place fruits and vegetables on the placement table inside the rail car; Moving rail car: The control unit controls the rail car to move along the track to above the opening; Cleaning the weighing surface: the first linkage mechanism triggers the second linkage mechanism to drive the cleaning mechanism to slide to clean the weighing surface of the weighing platform; Lowering the placement table: The trigger mechanism drives the transmission disk of the support mechanism to rotate, driving the support block to move downward, separating from the second top plate of the shock-absorbing mechanism, so that the placement table slides along the slide groove on the back plate through the slider and descends to the weighing platform; Weighing and photographing: The sensor on the weighing platform measures the weight of the fruits and vegetables placed on the platform, and the camera takes images of the fruits and vegetables; Data analysis and recording: The control unit analyzes weight data and image data, automatically identifies the type and quality of fruits and vegetables, and generates and uploads transaction records.

[0017] Preferably, the step of lowering the placement table includes: When the rail car moves along the track to the opening position, the first gear engages with the first rack fixed on the frame, driving the shaft body to rotate; The shaft drives the transmission disc to rotate, and the transmission disc drives the first connecting rod, the second connecting rod and the limit frame to move in turn; The limiting frame rotates the first support rod and the second support rod from a nearly upright state toward a direction approaching each other through the rotating shaft in the through slot, thereby driving the support block to move downward and separate from the second top plate; The rod slides inside the bracket, and the side plate compresses the second spring, absorbing vibrations and ensuring smooth movement of the support mechanism.

[0018] One or more technical solutions provided in this application have at least the following technical effects or advantages: 1. The present invention provides an intelligent agricultural wholesale market goods trading device and a method of using the same. This device realizes the automated transportation of fruits and vegetables through the coordination of structures such as tracks, cameras, and railcars. The railcar transports the fruits and vegetables on the placement table along the track to the top of the opening. The placement table automatically descends through the opening to the weighing platform for weighing. At the same time, the camera captures the image of the fruits and vegetables on the placement table. The control unit automatically identifies the category of fruits and vegetables through an image analysis algorithm, thus overcoming the problem of misjudgment when manually identifying fruits and vegetables with similar appearances (such as different varieties of pumpkins). Automated identification improves the accuracy of inventory data and transaction records, provides reliable protection for inventory management and transaction settlement in agricultural wholesale markets, and eliminates the need for manual handling of fruits and vegetables.

[0019] It should be understood that the contents described in the summary of the invention are not intended to limit the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and other features, advantages and aspects of the embodiments of the present invention will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein: Figure 1 It shows a schematic diagram of the three-dimensional connection structure of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention; Figure 2 An exploded view of an intelligent agricultural wholesale market goods trading device according to an embodiment of the present invention is shown; Figure 3 A schematic diagram showing the connection structure of the second linkage mechanism and the cleaning mechanism of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention is shown; Figure 4 A schematic diagram showing the connection structure of the back plate and the chute of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention is shown; Figure 5 A schematic diagram showing the connection structure of the support mechanism of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention is shown; Figure 6 A schematic diagram showing the connection structure of the shock absorbing mechanism of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention is shown; Figure 7 A partial enlarged view of a shock absorbing mechanism of an intelligent agricultural wholesale market goods trading device according to an embodiment of the present invention is shown; Figure 8 A partial enlarged view of the second linkage mechanism of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention is shown; Figure 9 An exploded view of a second linkage mechanism and a cleaning mechanism of an intelligent agricultural wholesale market goods trading device according to an embodiment of the present invention is shown; Figure 10 An exploded view of a second linkage mechanism of an intelligent agricultural wholesale market goods trading device according to an embodiment of the present invention is shown; Figure 11 A schematic diagram of the connection structure of the first linkage mechanism of the intelligent agricultural wholesale market goods trading equipment according to an embodiment of the present invention is shown.

[0021] The reference numerals are as follows: 1-base, 2-track, 3-rail car, 4-second linkage mechanism, 401-second slide rail, 402-second guide block, 403-third rack, 404-vertical plate, 405-second gear, 406-support shaft, 407-second torsion spring, 408-first slide rail, 409-first guide block, 410-second rack, 411-trigger block, 5-first linkage mechanism, 501-connecting rod, 502-contact plate, 503-support, 504-main shaft, 505-first torsion spring, 6-cleaning mechanism, 601-scraper, 602-guide rod, 603-guide seat, 7-trigger mechanism, 701-frame, 702-first rack, 703-first gear, 704-axis, 8 -Support mechanism, 801-transmission plate, 802-first connecting rod, 803-second connecting rod, 804-limiting frame, 805-rotating shaft, 806-through slot, 807-damper, 808-side plate, 809-second spring, 810-rod body, 811-support block, 812-second support rod, 813-first support rod, 814-bracket, 9-shock absorption mechanism, 901-connecting plate, 902-first top plate, 903-first spring, 904-limiting rod, 905-blocking, 906-limiting slot, 907-second top plate, 10-placing table, 11-control unit, 12-camera, 13-opening, 14-slider, 15-back plate, 16-slide slot, 17-weighing platform. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] In this document, the term "and / or" simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0024] like Figures 1 to 11 As shown, the intelligent agricultural wholesale market goods trading equipment includes a base 1, a control unit 11, a camera 12, a weighing platform 17, a track 2, multiple track cars 3, multiple placement platforms 10 and an opening 13 on the track 2, and its structure and connection relationship are described as follows.

[0025] The base 1 is the main supporting structure of the equipment. The upper surface of the base 1 is flat and is used to fix the track 2 and the weighing platform 17.

[0026] The control unit 11 is fixedly mounted on one side of the base 1 and includes a processor, memory, and a communication module. The processor performs functions such as image analysis, weight data processing, and motion control of the railcar 3. The memory stores a database of fruit and vegetable images and a classification algorithm model. The communication module is used to exchange data with external devices (such as display screens or servers).

[0027] Camera 12 is fixed above weighing platform 17 via a bracket and is electrically connected to control unit 11. Camera 12 uses a high-resolution industrial camera to capture images of fruits and vegetables on weighing platform 10. Camera 12 has autofocus and illumination compensation functions to accommodate photography in varying lighting conditions.

[0028] Weighing platform 17 is fixed to base 1 and located below track 2. Weighing platform 17 has a built-in electronic weighing sensor for measuring the weight of fruits and vegetables on placement platform 10. The surface of weighing platform 17 is flat and its dimensions match those of placement platform 10, ensuring that placement platform 10 can be placed stably.

[0029] Track 2, a closed loop, is laid above base 1 and weighing platform 17. It houses guide rails and power lines for railcar 3. An opening 13 is located in the center of track 2. This opening is slightly larger than platform 10, allowing platform 10 to descend through it onto weighing platform 17.

[0030] A plurality of rail vehicles 3 travel along the track 2 . Each rail vehicle 3 is driven by an electric motor and is precisely positioned and controlled in motion by a control unit 11 .

[0031] The placement table 10 is a flat platform for carrying fruits and vegetables. Each placement table 10 is installed in a rail car 3 and connected to the rail car 3 via a lifting mechanism. The placement table 10 is sized to match the weighing platform 17 and can be lowered through the opening 13 in the track 2 to the weighing platform 17 for weighing.

[0032] The opening 13 is provided on the track 2 and is located above the weighing platform 17. The opening 13 is rectangular in shape and slightly larger than the horizontal cross section of the placement platform 10 to ensure that the placement platform 10 can pass through smoothly.

[0033] In actual use, fruits and vegetables are placed on the placement table 10 within the railcar 3. The operator manually enters cargo information (such as the owner or batch number) through the interface of the control unit 11. The control unit 11, based on a preset program or real-time instructions, controls the railcar 3 to travel along the track 2 to the opening 13. When the railcar 3 stops above the opening 13, the placement table 10 descends through the opening 13 onto the weighing platform 17. Sensors on the weighing platform 17 detect the weight of the fruits and vegetables on the placement table 10 and transmit the weight data to the control unit 11. During the weighing process, the camera 12 captures high-resolution images of the fruits and vegetables on the placement table 10. The control unit 11 uses a built-in image recognition algorithm (e.g., a convolutional neural network-based classification model) to analyze the images and identify the category (e.g., apple, banana, etc.) and quality characteristics (e.g., color, size) of the fruits and vegetables. A fruit and vegetable image database is used to train and optimize the classification model, ensuring recognition accuracy exceeding 95%. The control unit 11 integrates the weighing data (weight) with the image analysis results (fruit and vegetable category and quality) to generate a transaction record. The records are uploaded to the management system of the agricultural wholesale market through the communication module, or displayed on the local display screen for operators to view.

[0034] In a specific embodiment, using a wholesale agricultural market as an example, the device is equipped with 10 railcars 3, each equipped with a platform 10. The track 2 is 50 meters long and has a closed-loop design. The opening 13 measures 0.5 meters by 0.5 meters. When the device is in operation, the weighing and sorting time for each batch of fruits and vegetables averages 15 seconds. It can process 5,000 batches of goods per day with a classification accuracy rate of 98%, significantly improving market transaction efficiency.

[0035] In this embodiment, the intelligent agricultural wholesale market goods trading equipment further includes a slider 14, a back plate 15 and a slide 16, and their structures and connection relationships are described as follows.

[0036] The slider 14 is fixedly connected to the placement platform 10 and is arranged on the side of the placement platform 10. The shape and size of the slider 14 are designed to match the slide groove 16 to ensure stability during the sliding process.

[0037] The back plate 15 is fixedly mounted on the inner structure of the rail car 3 and is perpendicular to the movement direction of the placement platform 10. The back plate 15 is used to support the chute 16 and provide a guide frame for the placement platform 10 to move in the vertical direction.

[0038] A vertically extending groove 16 is formed on the back plate 15. The dimensions of the groove 16 match those of the slider 14, allowing the slider 14 to slide freely vertically within the groove 16 while restricting horizontal movement of the slider 14, thereby ensuring that the platform 10 can only move vertically.

[0039] In actual use, the placement platform 10 achieves vertical movement through the cooperation of the slider 14 and the chute 16. When the rail car 3 is docked above the opening 13, the placement platform 10 in the rail car 3 descends, and the slider 14 slides on the back plate 15 along the chute 16, guiding the placement platform 10 to smoothly descend through the opening 13 to the weighing platform 17. The matching design of the slider 14 and the chute 16 effectively prevents the placement platform 10 from deflecting or tilting during the descent or ascent process, ensuring the stability and accuracy of the weighing process. Through the above structure, this embodiment achieves precise guidance and stable movement of the placement platform 10 in the vertical direction, thereby improving the reliability of the equipment operation.

[0040] In this embodiment, the intelligent agricultural wholesale market goods trading equipment also includes two supporting mechanisms 8 and four shock absorbing mechanisms 9, and their structures and connection relationships are described as follows.

[0041] The two support mechanisms 8 are fixedly connected to the internal structure of the rail car 3 and are located on opposite sides below the placement platform 10. Each support mechanism 8 is designed to support two shock absorbing mechanisms 9, providing a stable support force to ensure the stability of the shock absorbing mechanisms 9 when the placement platform 10 moves or is subjected to force.

[0042] Four shock-absorbing mechanisms 9 are evenly distributed and connected to the bottom of the platform 10. They absorb the vibration and impact generated by the platform 10 during descent, weighing, or ascent, improving the smooth operation of the equipment and protecting the fruits and vegetables being transported. Each shock-absorbing mechanism 9 includes a connecting plate 901, a first top plate 902, a second top plate 907, a limiting rod 904, a first spring 903, a plug 905, and a limiting slot 906. Their specific connections and functions are as follows.

[0043] The connecting plate 901 is fixedly connected to the bottom of the placement platform 10, and is located at the connection between the placement platform 10 and the shock absorbing mechanism 9. The connecting plate 901 is used to connect the various components of the shock absorbing mechanism 9 to the placement platform 10 as a whole to ensure stable force transmission.

[0044] The first top plate 902 is fixedly connected to the connecting plate 901 and is perpendicular to the movement direction of the placement table 10. The first top plate 902 serves as the upper end fixing point of the first spring 903 and is connected to the limit rod 904 to provide structural support for the shock absorbing mechanism 9.

[0045] One end of the limiting rod 904 is fixedly connected to the first top plate 902 and extends downward in the vertical direction. The limiting rod 904 passes through the second top plate 907 and is slidably connected to the second top plate 907 to guide the second top plate 907 to move in the vertical direction.

[0046] The second top plate 907 is slidably connected to the first top plate 902 via the limiting rod 904 and is also slidably connected to the limiting slot 906. The bottom end surface of the second top plate 907 contacts the support mechanism 8 and is supported by the support mechanism 8. The second top plate 907 can move in the vertical direction under the constraints of the limiting rod 904 and the limiting slot 906.

[0047] The limiting groove 906 is provided on the connecting plate 901 and is a groove-shaped structure extending in the vertical direction. The limiting groove 906 is slidably connected to the side of the second top plate 907 to limit the movement of the second top plate 907 in the horizontal direction and ensure that it moves only in the vertical direction.

[0048] The first spring 903 is sleeved on the limiting rod 904, and its two ends are fixedly connected between the first top plate 902 and the second top plate 907. The first spring 903 is compressed or stretched when the placement table 10 is subjected to force, absorbing vibration and impact force to achieve a shock absorption effect.

[0049] The plug 905 is fixedly connected to the bottom end of the limiting rod 904 and is located below the second top plate 907. The plug 905 is used to prevent the second top plate 907 from sliding off the limiting rod 904, thereby ensuring the structural integrity of the shock absorbing mechanism 9.

[0050] In actual use, the four shock-absorbing mechanisms 9 are connected to the placement table 10 through the connecting plate 901, and the second top plates 907 of the two shock-absorbing mechanisms 9 are supported by two supporting mechanisms 8 respectively. When the rail car 3 is parked above the opening 13, if the placement table 10 encounters bumps during movement, the first spring 903 is compressed between the first top plate 902 and the second top plate 907 to absorb vibration energy. The second top plate 907 slides in the vertical direction under the constraints of the limiting rod 904 and the limiting groove 906 to ensure the stability of the shock-absorbing process. The blockage 905 prevents the second top plate 907 from detaching from the limiting rod 904, thereby ensuring the reliability of the shock-absorbing mechanism 9. The supporting mechanism 8 provides a stable reverse force by supporting the bottom end surface of the second top plate 907, thereby enhancing the load-bearing capacity of the shock-absorbing mechanism 9. Through the above structure, this embodiment realizes the shock-absorbing function of the placement table 10 during the weighing process, and improves the protection effect of the fruits and vegetables in the placement table 10.

[0051] In this embodiment, the support mechanism 8 includes a transmission disk 801, two first connecting rods 802, two second connecting rods 803, two limit frames 804, two through slots 806, four rotating shafts 805, two first support rods 813, two second support rods 812, a bracket 814, two support blocks 811, two rod bodies 810, two side plates 808 and two dampers 807, and its structure and connection relationship are described as follows.

[0052] The transmission plate 801 is arranged at the center of the support mechanism 8 and is connected to the two first connecting rods 802 by a rotation connection, allowing the first connecting rods 802 to rotate relative to the transmission plate 801. The transmission plate 801 is used to coordinate the movement of the two first connecting rods 802 and provide a linkage basis for the support mechanism 8.

[0053] The two first connecting rods 802 are respectively rotatably connected to one end of the transmission plate 801, and the other end of each first connecting rod 802 is rotatably connected to a second connecting rod 803. The first connecting rod 802 transmits torque by rotating to drive the second connecting rod 803 to move.

[0054] The two second connecting rods 803 are rotatably connected to the two first connecting rods 802 respectively, and the other end of each second connecting rod 803 is fixedly connected to a limit frame 804. The second connecting rod 803 is used to transmit the movement of the first connecting rod 802 to the limit frame 804, driving the displacement of the limit frame 804.

[0055] The two limiting frames 804 are fixedly connected to the two second connecting rods 803 respectively, and a through slot 806 is processed on each limiting frame 804. The through slot 806 is linear and extends along the length direction of the limiting frame 804 to guide the sliding movement of the rotating shaft 805.

[0056] The four rotating shafts 805 are respectively slidably connected to the two through slots 806, wherein two rotating shafts 805 are slidably connected in each through slot 806. Each rotating shaft 805 is rotatably connected to a first support rod 813 and a second support rod 812, and is used to transmit the movement of the limit frame 804 to the support rod structure.

[0057] The two rods 810 are fixedly connected to the two limit frames 804 respectively. Each rod 810 extends in the vertical direction and is slidably connected to the bracket 814. The rod 810 is used to transmit the movement of the limit frame 804 to the side plate 808, while maintaining stable sliding under the constraint of the bracket 814.

[0058] The bracket 814 is fixedly mounted on the inner structure of the rail car 3 and serves as a fixed frame for the support mechanism 8. The bracket 814 is slidably connected to the two rods 810, guiding the rods 810 to move laterally and providing additional stability through the side plates 808 and the dampers 807.

[0059] The two side plates 808 are fixedly connected to the two rods 810 respectively. Each side plate 808 is located on the side of the rod 810 and is connected to the bracket 814 through the damper 807. The side plates 808 are used to enhance the structural strength of the rod 810 and cooperate with the damper 807 to reduce the impact of movement.

[0060] The two dampers 807 are respectively connected between the two side plates 808 and the bracket 814 . The dampers 807 are used to buffer the elastic force from the first spring 903 , thereby improving the protection effect of the fruits and vegetables inside the placement table 10 .

[0061] Two first support rods 813 are rotatably connected to the internal structure of the railcar 3. Each first support rod 813 is slidably connected to the through slot 806 via a rotating shaft 805 and is rotatably connected to a second support rod 812. The first support rods 813 are used to connect the fixed point of the railcar 3 to the support block 811 to transmit supporting force.

[0062] The two second support rods 812 are rotatably connected to the two first support rods 813, respectively. The other end of each second support rod 812 is rotatably connected to a support block 811 via a rotating shaft 805, and is slidably connected to the through slot 806 via the rotating shaft 805. The second support rods 812 are used to transmit the movement of the first support rods 813 to the support block 811.

[0063] The two support blocks 811 are rotatably connected to the two second support rods 812, respectively. Each support block 811 is slidably connected to the retaining slot 906 of the shock-absorbing mechanism 9. The support blocks 811 support the bottom end surface of the second top plate 907 of the shock-absorbing mechanism 9, transmitting the supporting force to the shock-absorbing mechanism 9 through the sliding connection. When the support blocks 811 are slidably connected to the retaining slot 906 (when the placement platform 10 is weighing), they do not contact the ends of the retaining slot 906, thereby ensuring that the weighing platform 17 receives only the full weight from the placement platform 10.

[0064] In actual use, the support mechanism 8 provides support for the shock-absorbing mechanism 9 through a linkage structure and ensures that the placement platform 10 is separated from the support block 811 during weighing. When the railcar 3 is docked above the opening 13 and the placement platform 10 is lowered to the weighing platform 17, the transmission disk 801 is driven by an external force and begins to rotate. As the transmission disk 801 rotates, it drives the two first connecting rods 802 to move. Each first connecting rod 802 in turn drives the corresponding second connecting rod 803 to move. The second connecting rod 803 pulls the limit frame 804, causing it to move away from the transmission disk 801. At this time, the limit frame 804 drives the first support rod 813 and the second support rod 812 to rotate via the rotating shaft 805 in the through slot 806. The first support rod 813 and the second support rod 812 rotate from a nearly upright position toward each other, driving the support block 811 downward until the support block 811 no longer contacts the lower surface of the second top plate 907 of the shock-absorbing mechanism 9. At this point, the placement platform 10 is completely positioned on the weighing platform 17, independently bearing the weight for accurate weighing. Through the aforementioned structure, this embodiment achieves precise detachment of the support block 811 during weighing, enhancing the stability of the placement platform 10 during the weighing process and protecting the fruits and vegetables from vibration. In other words, during the movement of the railcar 3, the first and second support rods 813, 812 are in a nearly upright position, allowing the support block 811 to support the entire shock-absorbing mechanism 9 and the placement platform 10.

[0065] In this embodiment, the supporting mechanism 8 further includes a second spring 809 , the structure and connection relationship of which are described as follows.

[0066] The second spring 809 is sleeved on the rod body 810 and extends along the axial direction of the rod body 810. The two ends of the second spring 809 are fixedly connected to the bracket 814 and the side plate 808 respectively. The second spring 809 is used to provide elastic restoring force when the rod body 810 slides, ensuring that the transmission disc 801 drives the first connecting rod 802 to return to the initial position, wherein a total of four second springs 809 are provided, and the elastic force of the four second springs 809 is greater than the placement table 10 and the fruits and vegetables on the placement table 10. The fruits and vegetables weighed in a single time are less than the maximum pressure that the four second springs 809 can withstand, thereby ensuring that the second springs 809 can work normally. Furthermore, when the transmission disc 801 loses external force driving, the second spring 809 can ensure that the transmission disc 801 is reset. At this time, the placement table 10 is reset and is in a high position, which does not affect the continued movement of the rail car 3.

[0067] In actual use, when the rail car 3 is parked above the opening 13 and the placement platform 10 needs to be lowered to the weighing platform 17, the transmission disk 801 is driven to rotate by an external force, driving the first connecting rod 802, the second connecting rod 803 and the limit frame 804 to move, and then driving the rod body 810 to slide in the bracket 814. At this time, the side plate 808 moves with the rod body 810, compressing or stretching the second spring 809. The second spring 809 absorbs vibration and impact force during the sliding process through elastic deformation, slowing down the movement speed of the side plate 808, and ensuring the smooth movement of the rod body 810 and the limit frame 804. Through the above structure, this embodiment enhances the shock absorption effect of the support mechanism 8 through the second spring 809, further improves the stability of the placement platform 10 during the weighing process, and protects fruits and vegetables from vibration.

[0068] In this embodiment, the intelligent agricultural wholesale market goods trading equipment also includes two triggering mechanisms 7 for triggering the transmission disk 801 to rotate, and the structure and connection relationship thereof are described as follows.

[0069] Each trigger mechanism 7 includes a frame 701 , a first rack 702 , a first gear 703 and a shaft 704 .

[0070] The frame 701 is fixedly connected to the base 1 and is located on the side of the track 2. Its position and structural design ensure that it does not interfere with the movement of the track vehicle 3 and the placement platform 10 on the track 2. The inner side of the frame 701 is fixedly connected to the first rack 702, providing a support frame for the first rack 702.

[0071] The first rack 702 is fixed to the inner side of the frame 701 and arranged along the extension direction of the track 2, with the tooth surface facing the first gear 703. The first rack 702 is engaged with the first gear 703 to convert linear motion into rotational motion.

[0072] The first gear 703 is engaged with the first rack 702 and fixedly connected to the shaft 704. The first gear 703 converts the movement of the rail vehicle 3 into the rotation of the shaft 704 by engaging with the first rack 702.

[0073] One end of the shaft 704 is fixedly connected to the first gear 703, and the other end is fixedly connected to the transmission plate 801. The shaft 704 is rotatably connected to the back plate 15 through a bearing or other rotational connection method, ensuring that the shaft 704 can rotate stably on the back plate 15 and transmit the rotational force to the transmission plate 801.

[0074] In actual use, when the rail car 3 travels along the track 2 and approaches the opening 13, the trigger mechanism 7 starts to work. The first gear 703 engages with the first rack 702 fixed on the frame 701 as the rail car 3 moves, and the linear motion of the rail car 3 drives the first gear 703 to rotate. The first gear 703 drives the transmission disk 801 to rotate through the shaft 704, thereby triggering the linked movement of the support mechanism 8. The rotation of the transmission disk 801 drives the first connecting rod 802, the second connecting rod 803 and the limit frame 804 to move in turn, pushing the first support rod 813 and the second support rod 812 to rotate, causing the support block 811 to move downward until it is separated from the lower surface of the second top plate 907 of the shock absorbing mechanism 9, ensuring that the placement table 10 falls completely on the weighing platform 17 for weighing. Through the above structure, this embodiment realizes the automatic triggering of the transmission disk 801, realizes automatic weighing without adding electric equipment, and saves the production cost and subsequent maintenance cost of the device.

[0075] In this embodiment, the intelligent agricultural wholesale market goods trading equipment further includes a first linkage mechanism 5, a second linkage mechanism 4, and a cleaning mechanism 6. The first linkage mechanism 5 is connected to the railcar 3 and is used to trigger the second linkage mechanism 4 and the cleaning mechanism 6 when the railcar 3 moves to clean the weighing surface of the weighing platform 17. The structure and connection relationship of the first linkage mechanism 5 are described as follows.

[0076] The first linkage mechanism 5 includes a connecting rod 501 , a contact plate 502 , a support 503 , a main shaft 504 and a first torsion spring 505 .

[0077] The connecting rod 501 is fixedly connected to the main shaft 504 and swings with the rotation of the main shaft 504. The main shaft 504 is rotatably connected to the support 503 through a bearing or other rotating connection method. The support 503 is fixedly connected to the rail car 3 and is fixedly connected to the contact plate 502. The contact plate 502 is arranged on the outside of the support 503, facing the trigger block 411 of the second linkage mechanism 4, and is used to contact the trigger block 411 when the rail car 3 moves. The first torsion spring 505 is sleeved on the main shaft 504, and its two ends are respectively fixedly connected to the connecting rod 501 and the support 503, providing elastic restoring force to ensure that the connecting rod 501 and the contact plate 502 return to their initial positions after being triggered. The first linkage mechanism 5 is arranged in front of the movement direction of the rail car 3.

[0078] The second linkage mechanism 4 includes a trigger block 411 , a first slide rail 408 , a second rack 410 , a first guide block 409 , a second gear 405 , a support shaft 406 , a second torsion spring 407 , a vertical plate 404 , a third rack 403 , a second guide block 402 and a second slide rail 401 .

[0079] The trigger block 411 is fixedly connected to the second rack 410 and is located near the moving path of the rail car 3 and can be touched by the contact plate 502. The second rack 410 is fixedly connected to the first guide block 409, and the first guide block 409 is slidably connected to the first slide rail 408. The first slide rail 408 is fixed to the base 1 and arranged along the extension direction of the track 2 to guide the linear sliding of the first guide block 409 and the second rack 410. The second rack 410 is engaged with the second gear 405 to convert the linear motion of the trigger block 411 into the rotation of the second gear 405. The second gear 405 is fixedly connected to the support shaft 406, and the support shaft 406 is rotatably connected to the base 1 through bearings or other rotating connection methods. The second torsion spring 407 is sleeved on the support shaft 406, and its two ends are respectively fixedly connected to the top of the base 1 and the bottom of the second gear 405, providing elastic restoring force so that the second gear 405 returns to its initial position after rotation. The second gear 405 meshes with the third rack 403, which is fixedly connected to the second guide block 402. (The third rack 403 is perpendicular to the second rack 410, which converts the motion of the railcar 3 into linear motion perpendicular to it.) The second guide block 402 is slidably connected to the second slide rail 401. The second slide rail 401 is fixed to the base 1 and arranged along the weighing surface of the weighing platform 17, guiding the linear sliding of the third rack 403 and the second guide block 402. The vertical plate 404 is fixedly connected to the second guide block 402 and located near the weighing surface of the weighing platform 17. It is used to push the cleaning mechanism 6 when sliding or directly clean debris from the surface of the weighing platform 17.

[0080] In actual use, before the railcar 3 moves along the track 2 and approaches the opening 13, the first linkage mechanism 5 triggers the movement of the second linkage mechanism 4 and the cleaning mechanism 6. At this point, the cleaning mechanism 6 is no longer located on the weighing platform 17 and is no longer obstructed by the cleaning mechanism 6. In other words, before the railcar 3 moves toward the opening 13, the cleaning mechanism 6 no longer obstructs the weighing platform 17, thus not affecting the movement of the railcar 3 and the first linkage mechanism 5 on the railcar 3. The railcar 3 drives the first linkage mechanism 5 to move, and the connecting rod 501 and the contact plate 502, along with the support 503, approach the trigger block 411. The contact plate 502 contacts the trigger block 411, pushing the trigger block 411 and the second rack 410 to slide along the first slide rail 408. The movement of the second rack 410 drives the second gear 405 to rotate. The second gear 405 compresses the second torsion spring 407 via the support shaft 406, simultaneously driving the third rack 403 to slide along the second slide rail 401. The third rack 403 pushes the second guide block 402 and the vertical plate 404 along the weighing surface of the weighing platform 17. As the vertical plate 404 slides, it drives the cleaning mechanism 6 to slide across the weighing surface of the weighing platform 17, removing any remaining debris or fruit and vegetable fragments, ensuring a clean weighing surface and ensuring weighing accuracy. Once triggered, the first torsion spring 505 resets the connecting rod 501 and contact plate 502. The second torsion spring 407 resets the second gear 405, the third rack 403, and the vertical plate 404. Simultaneously, the reset spring 604 returns the scraper 601 to its initial position, preparing for the next cleaning cycle. Through the above structure, this embodiment realizes automatic cleaning of the weighing surface of the weighing platform 17, improves the accuracy of the weighing process and the reliability of the equipment operation, wherein the elastic force of the second torsion spring 407 is less than the elastic force of the first torsion spring 505. When the contact plate 502 pushes the trigger block 411 to move and makes the cleaning mechanism 6 completely separate from the weighing platform 17, the first torsion spring 505 at this time can no longer overcome the elastic force of the second torsion spring 407 and drive the contact plate 502 to rotate. At this time, the contact plate 502 can no longer continue to push the trigger block 411 forward, so that the first linkage mechanism 5 on the rail car 3 can leave the base 1 normally.

[0081] In this embodiment, the cleaning mechanism 6 includes a scraper 601 , a guide rod 602 and a guide seat 603 .

[0082] The scraper 601 is fixedly connected to the vertical plate 404 of the second linkage mechanism 4 and is located near the weighing surface of the weighing platform 17. The bottom edge of the scraper 601 is in contact with the weighing surface of the weighing platform 17, designed to effectively remove debris and fruit and vegetable fragments from the weighing surface. The scraper 601 is fixedly connected to the guide rod 602 and slides along the surface of the weighing platform 17 through the movement of the vertical plate 404. When the second torsion spring 407 is not deformed, the scraper 601 completely blocks the weighing platform 17.

[0083] The guide rod 602 is fixedly connected to the scraper 601 and extends along the sliding direction of the weighing surface of the weighing platform 17. The guide rod 602 is slidably connected to the guide seat 603 to guide the moving direction of the scraper 601 and ensure its smooth movement.

[0084] The guide seat 603 is fixedly connected to the base 1 and is located on the side of the weighing platform 17. The guide seat 603 has a sliding groove or hole structure that matches the guide rod 602, allowing the guide rod 602 to slide therein while limiting the movement of the scraper 601 to only along the weighing surface of the weighing platform 17.

[0085] In actual use, when the railcar 3 travels along the track 2 and approaches the opening 13, the first linkage mechanism 5 first triggers the second linkage mechanism 4, which in turn drives the scraper 601 in the cleaning mechanism 6 completely away from the weighing platform 17. At this point, the connecting rod 501 moves between the weighing platform 17 and the scraper 601. Due to the presence of the connecting rod 501, the second torsion spring 407 remains deformed until the connecting rod 501 no longer obstructs the scraper 601 (that is, the railcar 3 completely clears the base 1). The vertical plate 404 of the second linkage mechanism 4 slides along the second slide rail 401, driving the scraper 601 along the weighing surface of the weighing platform 17. During its movement, the bottom edge of the scraper 601 scrapes away any remaining debris or fruit and vegetable fragments on the surface of the weighing platform 17, ensuring a clean weighing surface. The guide rod 602 slides within the guide seat 603, constraining the scraper 601's trajectory and preventing it from deviating or tilting, thereby improving cleaning stability and efficiency. After cleaning is completed, the second torsion spring 407 of the second linkage mechanism 4 drives the vertical plate 404 to reset, driving the scraper 601 and the guide rod 602 back to their initial positions, ready for the next cleaning. Through the above structure, this embodiment realizes automatic cleaning of the weighing surface of the weighing platform 17, improving the accuracy of the weighing process and the reliability of the equipment operation.

[0086] It is worth further adding that the moving direction of the rail car 3 is single. The specific moving direction is that the first linkage mechanism 5 on the rail car 3 can first contact the second linkage mechanism 4 and drive the second linkage mechanism 4 to drive the scraper 601 to completely separate from the weighing surface of the weighing platform 17, so that the connecting rod 501 can pass between the scraper 601 and the weighing platform 17, and at the same time rely on the first rack 702 to engage the first gear 703 to rotate, thereby realizing the lowering of the support block 811, so that the placement table 10 falls completely on the weighing platform 17.

[0087] In addition, another embodiment of the present invention further provides a method for using an intelligent agricultural wholesale market commodity trading device: Fruits and vegetables are placed on a placement table 10 in the rail car 3. The operator does not need to manually input the cargo information, and relies on the camera 12 and the control unit 11 for automatic identification.

[0088] The control unit 11 controls the railcar 3 to travel along the track 2 to above the opening 13 according to a preset program or real-time instructions. The railcar 3 achieves precise parking through a built-in positioning sensor (such as an infrared or laser sensor).

[0089] Before the railcar 3 approaches the opening 13, the first linkage mechanism 5 triggers the second linkage mechanism 4, driving the cleaning mechanism 6 to slide and clean the weighing surface of the weighing platform 17. The contact plate 502 of the first linkage mechanism 5 contacts the trigger block 411 of the second linkage mechanism 4, pushing the second rack 410 along the first slide rail 408, thereby rotating the second gear 405. The second gear 405, via the support shaft 406, drives the third rack 403 along the second slide rail 401, pushing the vertical plate 404 and the scraper 601 of the cleaning mechanism 6 along the weighing surface of the weighing platform 17 to remove any remaining debris or fruit and vegetable fragments. The scraper 601 slides within the guide seat 603 via the guide rod 602, ensuring a smooth cleaning process. After cleaning is complete, the first torsion spring 505 resets the contact plate 502, and the second torsion spring 407 resets the vertical plate 404 and scraper 601, preparing for the next cleaning cycle.

[0090] When the railcar 3 docks above the opening 13, the trigger mechanism 7 drives the transmission disc 801 of the support mechanism 8 to rotate, causing the placement platform 10 to descend. The first gear 703 engages with the first rack 702 fixed to the frame 701, driving the shaft 704 to rotate, which in turn drives the transmission disc 801 to rotate. The transmission disc 801 sequentially drives the first connecting rod 802, the second connecting rod 803, and the limit frame 804. The limit frame 804, via the rotating shaft 805 within the through slot 806, rotates the first and second support rods 813, 812 from a nearly upright position toward each other, driving the support block 811 downward and away from the second top plate 907 of the shock-absorbing mechanism 9. The rod 810 slides within the bracket 814, and the side plate 808 compresses the second spring 809, absorbing vibration and ensuring smooth movement of the support mechanism 8. At this point, the placement platform 10 slides along the slide groove 16 on the back plate 15 via the slider 14, smoothly descending to the weighing platform 17.

[0091] The sensor of the weighing platform 17 measures the weight of the fruits and vegetables on the placement platform 10 and transmits the weight data to the control unit 11. At the same time, the camera 12 captures the images of the fruits and vegetables on the placement platform 10 to obtain high-definition images.

[0092] The control unit 11 uses a built-in image recognition algorithm (e.g., a classification model based on a convolutional neural network) to analyze image data, automatically identifying the category (e.g., apple, banana, etc.) and quality characteristics (e.g., color, size) of the fruit and vegetable. It then combines this with weight data to generate a transaction record. The fruit and vegetable image database is used to train and optimize the classification model, ensuring an accuracy rate exceeding 95%. Transaction records are uploaded to the agricultural wholesale market's management system via a communication module or displayed on a local display screen for operators to review.

[0093] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. An intelligent agricultural wholesale market goods trading equipment, characterized by: It includes a base (1), a control unit (11), a camera (12), a weighing platform (17), a track (2), an opening (13), a plurality of track vehicles (3) and a plurality of placement platforms (10); The weighing platform (17) is connected to the base (1), the base (1) is connected to the control unit (11), the camera (12) is connected to the control unit (11), the track (2) is laid above the base (1) and the weighing platform (17), a plurality of the track vehicles (3) travel along the track (2), a plurality of the placement platforms (10) are respectively arranged in a plurality of the track vehicles (3), and the opening (13) is opened on the track (2); The placement platform (10) can pass through the opening (13) and land on the weighing platform (17) for weighing. The camera (12) is used to capture an image of the placement platform (10) currently being weighed and analyze the category of fruits and vegetables through the control unit (11).

2. The intelligent agricultural wholesale market goods trading equipment according to claim 1 is characterized in that: Also includes a slider (14), a back plate (15) and a slide (16); The slider (14) is connected to the placement platform (10), the chute (16) is opened on the back plate (15), the back plate (15) is connected to the rail car (3), the slider (14) is connected to the chute (16), and the slider (14) and the chute (16) match in size and can limit the placement platform (10) to move only in the vertical direction.

3. The intelligent agricultural wholesale market goods trading equipment according to claim 2 is characterized in that: It also includes two supporting mechanisms (8) and four shock absorbing mechanisms (9), wherein the four shock absorbing mechanisms (9) are connected to the placement platform (10), and two supporting mechanisms (8) are connected to the rail vehicle (3), and each supporting mechanism (8) is used to support two shock absorbing mechanisms (9), respectively. The shock absorbing mechanism (9) includes a connecting plate (901), a first top plate (902), a second top plate (907), a limiting rod (904), a first spring (903), a blocking member (905), and a limiting groove (906); The connecting plate (901) is connected to the placing table (10), the connecting plate (901) is connected to the first top plate (902), the first top plate (902) is connected to the limiting rod (904), the limiting rod (904) is slidably connected to the second top plate (907), the limiting groove (906) is opened on the connecting plate (901), the second top plate (907) is slidably connected to the limiting groove (906), the first spring (903) is sleeved on the limiting rod (904), the two ends of the first spring (903) are respectively connected between the first top plate (902) and the second top plate (907), and the blocking (905) is connected to the bottom end of the limiting rod (904); Wherein, the support mechanism (8) is used to support the bottom end surface of the second top plate (907).

4. The intelligent agricultural wholesale market goods trading equipment according to claim 3 is characterized in that: The support mechanism (8) comprises a transmission plate (801), two first connecting rods (802), two second connecting rods (803), two limit frames (804), two through slots (806), four rotating shafts (805), two first support rods (813), two second support rods (812), a bracket (814), two support blocks (811), two rod bodies (810), two side plates (808) and two dampers (807); The transmission plate (801) is rotatably connected to the two first connecting rods (802), the two first connecting rods (802) are rotatably connected to the two second connecting rods (803), the second connecting rods (803) are connected to the limit frame (804), the through slot (806) is processed on the limit frame (804), the two rotating shafts (805) are slidably connected to the through slot (806), the limit frame (804) is connected to the rod body (810), the rod body (810) is slidably connected to the bracket (814), the rod body (810) is connected to the The side plate (808) is connected, the damper (807) is connected between the side plate (808) and the bracket (814), the two rotating shafts (805) are rotatably connected to the first support rod (813) and the second support rod (812), the first support rod (813) is rotatably connected to the rail vehicle (3), the first support rod (813) is rotatably connected to the second support rod (812), the second support rod (812) is rotatably connected to the support block (811), and the support block (811) is slidably connected to the limiting groove (906).

5. The intelligent agricultural wholesale market goods trading equipment according to claim 4 is characterized in that: The support mechanism (8) further includes a second spring (809), which is sleeved on the rod body (810), and the two ends of the second spring (809) are respectively connected to the bracket (814) and the side plate (808).

6. The intelligent agricultural wholesale market goods trading equipment according to claim 4 is characterized in that: It also includes two trigger mechanisms (7) for triggering the transmission disk (801) to rotate, and the trigger mechanism (7) includes a frame (701), a first rack (702), a first gear (703) and a shaft (704); The frame (701) is connected to the base (1), and the frame (701) does not affect the movement of the rail car (3) and the placement platform (10) on the rail (2). The inner side of the frame (701) is connected to the first rack (702), the first rack (702) is engaged with the first gear (703), the first gear (703) is connected to the shaft (704), the shaft (704) is connected to the transmission disk (801), and the shaft (704) is rotatably connected to the back plate (15).

7. The intelligent agricultural wholesale market goods trading equipment according to claim 1 is characterized in that: It also includes a first linkage mechanism (5), a second linkage mechanism (4) and a cleaning mechanism (6), wherein the first linkage mechanism (5) is connected to the rail car (3), and when the rail car (3) moves, the first linkage mechanism (5) is used to trigger the second linkage mechanism (4) and the cleaning mechanism (6) to clean the weighing surface of the weighing platform (17), and the first linkage mechanism (5) includes a connecting rod (501), a contact plate (502), a support (503), a main shaft (504) and a first torsion spring (505); The connecting rod (501) is connected to the main shaft (504), the main shaft (504) is rotatably connected to the support (503), the support (503) is connected to the contact plate (502), the first torsion spring (505) is sleeved on the main shaft (504), and the two ends of the first torsion spring (505) are respectively connected to the connecting rod (501) and the support (503); The second linkage mechanism (4) includes a trigger block (411), a first slide rail (408), a second rack (410), a first guide block (409), a second gear (405), a support shaft (406), a second torsion spring (407), a vertical plate (404), a third rack (403), a second guide block (402) and a second slide rail (401); The contact plate (502) can contact the trigger block (411) during the movement process, the trigger block (411) is connected to the second rack (410), the second rack (410) is connected to the first guide block (409), the first guide block (409) is slidably connected to the first slide rail (408), the second rack (410) is engaged with the second gear (405), the second gear (405) is connected to the support shaft (406), and the support shaft (406) is connected to the base (1). The second torsion spring (407) is sleeved on the support shaft (406), and the two ends of the second torsion spring (407) are respectively connected to the top of the base (1) and the bottom of the second gear (405), the second gear (405) is meshed with the third rack (403), the third rack (403) is connected to the second guide block (402), the second guide block (402) is slidably connected to the second slide rail (401), and the second slide rail (401) and the first slide rail (408) are connected to the base (1).

8. The intelligent agricultural wholesale market goods trading equipment according to claim 7 is characterized in that: The cleaning mechanism (6) comprises a scraper (601), a guide rod (602) and a guide seat (603); The scraper (601) is connected to the vertical plate (404) in the second linkage mechanism (4), the scraper (601) is connected to the guide rod (602), the guide rod (602) is slidably connected to the guide seat (603), and the guide seat (603) is connected to the base (1). The scraper (601) can remove debris on the weighing platform (17) when moving.

9. A method for using intelligent agricultural wholesale market goods trading equipment, characterized in that: The method is applied to the intelligent agricultural wholesale market goods trading equipment according to any one of claims 1 to 8, comprising the following steps: Placing fruits and vegetables: placing the fruits and vegetables on the placement table (10) in the rail car (3); Moving the rail car: controlling the rail car (3) to move along the track (2) to above the opening (13) via the control unit (11); Cleaning the weighing surface: causing the first linkage mechanism (5) to trigger the second linkage mechanism (4), driving the cleaning mechanism (6) to slide to clean the weighing surface of the weighing platform (17); Lowering the placement platform: the trigger mechanism (7) drives the transmission plate (801) of the support mechanism (8) to rotate, driving the support block (811) to move downward, disengaging from the second top plate (907) of the shock absorbing mechanism (9), and causing the placement platform (10) to slide along the slide groove (16) on the back plate (15) through the slider (14) and descend to the weighing platform (17); Weighing and photographing: using the sensor of the weighing platform (17) to measure the weight of the fruits and vegetables on the placement platform (10), and at the same time photographing the images of the fruits and vegetables through the camera (12); Data analysis and recording: The control unit (11) analyzes weight data and image data, automatically identifies the category and quality of fruits and vegetables, and generates and uploads transaction records.

10. The method for using the intelligent agricultural wholesale market goods trading equipment according to claim 9, characterized in that: The step of lowering the placement table includes: When the rail vehicle (3) travels along the track (2) to the opening (13), the first gear (703) engages with the first rack (702) fixed on the frame (701), driving the shaft (704) to rotate; The shaft (704) drives the transmission disc (801) to rotate, and the transmission disc (801) sequentially drives the first connecting rod (802), the second connecting rod (803) and the limit frame (804) to move; The limiting frame (804) rotates the first support rod (813) and the second support rod (812) toward each other through the rotating shaft (805) in the through slot (806), driving the support block (811) to move downward and separate from the second top plate (907); The rod body (810) slides in the bracket (814), and the side plate (808) compresses the second spring (809) to absorb vibration and ensure smooth movement of the support mechanism (8).

Images