Fruit screening structure capable of reducing damage

Abstract

The fruit screening structure comprises a shell, a central control cabinet is fixedly installed at the front end of the shell, a visual analysis structure is fixedly installed on the upper portion of the inner surface of the shell, and a feeding structure is fixedly installed on the upper portion of the inner surface of the shell. A plurality of screening structures are fixedly connected to the inner surface of the shell in a staggered distribution mode. According to the fruit screening structure capable of reducing damage, the screening size of each screening structure is adjusted through the visual analysis structure mounted on the feeding structure, and fruits intermittently enter each screening structure and are screened under the action of the feeding structure; and finally, the fruits of various sizes are fed into different packaging production lines through the discharging equipment to be packaged, so that screening of the different fruits is achieved, damage to the fruits is reduced through cooperation of the feeding structure and the screening structure, the screening efficiency is improved, and the application range is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of fruit screening, and particularly to a fruit screening structure for reducing damage. Background Technique

[0002] Fruit screening is a key link in the process of fruit processing and sales. Through effective screening, fruits can be graded according to characteristics such as size, shape, and maturity, so as to meet the needs of different markets and increase the added value of fruits. Good screening not only helps to improve the quality consistency of fruits, but also can extend their shelf life, reduce waste, and is of great significance to the sustainable development of the fruit industry.

[0003] Chinese Patent Publication No. CN214555356U discloses a fruit screening device with good screening effect, including a frame. A plurality of screening plates are arranged on the frame. A plurality of parallel strip-shaped holes are opened on the screening plates. The widths of the strip-shaped holes are equal. The screening plates are arranged obliquely downward from one end to the other end.

[0004] Existing fruit screening equipment mainly relies on methods such as drum screening, vibration screening, or robotic arm sorting for grading and screening. Although these methods can complete the screening task to a certain extent, there are obvious deficiencies. During the drum screening and vibration screening processes, fruits are prone to collide with each other during high-speed rolling or vibration, resulting in damaged skin or internal tissue damage; robotic arm sorting may cause extrusion or scratching of fruits due to improper grasping force.

[0005] These mechanical damages not only affect the appearance quality of fruits, but also reduce their sales value, and even shorten the shelf life, bringing economic losses to fruit farmers and merchants. Therefore, there is an urgent need for a screening structure that can reduce fruit damage to meet the market's demand for high-quality fruits. Summary of the Invention

[0006] The main purpose of the present invention is to provide a fruit screening structure for reducing damage, which can effectively solve the problems involved in the above background technique.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is as follows: A fruit screening structure for reducing damage, including a housing. A central control cabinet is fixedly installed at the front end of the housing. A discharging device is fixedly installed at the rear end of the housing. A visual analysis structure is fixedly installed on the upper part of the inner surface of the housing. A feeding structure is fixedly installed on the upper part of the inner surface of the housing. A plurality of screening structures are fixedly connected in a staggered manner on the inner surface of the housing. A conveyor belt two is fixedly installed on the lower part of the inner surface of the housing. A wedge-shaped baffle is fixedly installed on the part of the inner surface of the housing on the upper right side of the conveyor belt two.

[0008] Preferably, the feeding structure includes a first baffle fixedly connected to the right side of the inner surface of the housing. A first conveyor belt is fixedly installed at the upper part of the first baffle below the visual analysis structure. A second baffle is fixedly installed at the part of the inner surface of the housing below the first conveyor belt. At the upper right side of the second baffle, chutes are symmetrically arranged left and right. An intermittent feeding assembly is arranged jointly on the two chutes and the inner surface of the second baffle.

[0009] Preferably, the intermittent feeding assembly includes an electric telescopic rod fixedly connected to the inner cavity of the second baffle. Hydraulic cavities are symmetrically arranged along the electric telescopic rod in the inner cavity of the second baffle. On both the front and rear sides of the electric telescopic rod, piston rods fixedly connected to its output end are arranged. Both piston rods are slidably connected to the inner surface of the adjacent hydraulic cavity.

[0010] Preferably, the inner surfaces of the two chutes are both slidably connected with retaining rods. At the lower ends of the two retaining rods, a number of first springs fixedly connected to the bottom wall of the inner surface of the adjacent chute are fixedly connected in an array. At the lower ends of the two chutes, hydraulic rods are symmetrically fixedly connected front and rear. Two hydraulic rods on one side are communicated with the side of the inner surface of the hydraulic cavity far from the electric telescopic rod through a oil pipe. Two hydraulic rods on the other side are communicated with the side of the inner surface of the hydraulic cavity close to the electric telescopic rod through a oil pipe. Based on the change of the position of the piston rod in the hydraulic cavity, the two groups of hydraulic rods move relatively.

[0011] Preferably, the screening structure includes a trapezoidal block fixedly connected to the inner surface of the visual analysis structure. A storage cavity is arranged in the trapezoidal block. A variable screening assembly is arranged at the upper end of the trapezoidal block.

[0012] Preferably, a buffer plate is fixedly connected to the inner surface of the storage cavity. The inclined part of the buffer plate is parallel to the upper end of the trapezoidal block and buffer pads are coated at the positions corresponding to the variable screening assembly. An arc-shaped guiding block is arranged at the joint of the bottom wall of the inner surface of the storage cavity and the inclined surface of the buffer plate. The storage cavity penetrates through the inner surface of the housing and is communicated with the discharging device.

[0013] Preferably, the variable screening assembly includes a number of elastic rubber strips distributed in an array. At the mutually approaching ends of two adjacent elastic rubber strips, second springs symmetrically distributed front and rear are jointly arranged. At the left and right ends of the number of elastic rubber strips, sliders slidably connected to the upper end of the trapezoidal block are fixedly connected. Two adjacent sliders are jointly fixedly connected with a hydraulic telescopic rod fixedly connected to the inner surface of the trapezoidal block.

[0014] Preferably, a number of the hydraulic telescopic rods are jointly fixedly connected with a connecting pipe. The input side of the connecting pipe is fixedly connected with an oil pump fixedly connected to the inner surface of the trapezoidal block.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention feeds fruits into the feeding structure through an external conveying structure, and adjusts the screening sizes of each screening structure through a visual analysis structure installed above the feeding structure. By the action of the feeding structure, the fruits enter each screening structure intermittently for screening. Finally, fruits of various sizes are sent into different packaging production lines through discharging equipment for packaging, thereby realizing the screening of different fruits. Through the cooperation of the feeding structure and the screening structure, fruit damage is reduced, the screening efficiency is improved, and the application range is broadened.

[0016] 2. The present invention feeds fruits into the baffle two through the action of the conveyor belt one, and blocks the fruits through the intermittent feeding component arranged in the baffle two. Through the cooperation of the electric telescopic rod, the piston rod and the hydraulic cavity, the two groups of hydraulic rods on both sides are driven to be in different states, so as to periodically release and block the fruits in rows, and then batch the fruits into the screening structure to realize the alternating falling of the fruits, prevent collisions during the process of entering the screening structure and cause damage to the fruits, and reduce the impact on the freshness and integrity of the fruits.

[0017] 3. The present invention realizes the screening of fruits of different sizes, and utilizes the variable screening component to adapt to the screening requirements of different fruits and different sizes, further improving the application range of the equipment; simultaneously, by arranging buffer pads and arc guiding blocks inside the storage cavity, the collision generated by the falling of fruits is reduced, thereby reducing the damage to the fruits and ensuring the quality of the fruits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the sectional structural schematic diagram of the outer shell of the present invention; Figure 3 is the structural schematic diagram of the feeding structure of the present invention; Figure 4 is the structural schematic diagram of the intermittent feeding component of the present invention; Figure 5 is the structural schematic diagram of the screening structure of the present invention; Figure 6 is the internal structural schematic diagram of the trapezoidal block of the present invention; Figure 7 is the structural schematic diagram of the variable screening component of the present invention; Figure 8 of the present invention Figure 7 is the enlarged schematic diagram of the partial structure at A in

[0019] In the figure: 1. Visual analysis structure; 2. Outer shell; 3. Central control cabinet; 4. Discharging equipment; 5. Feeding structure; 51. First conveyor belt; 52. First baffle; 53. Second baffle; 531. Chute; 54. Intermittent feeding component; 541. Stop bar; 542. First spring; 543. Hydraulic rod; 544. Piston rod; 545. Electric telescopic rod; 546. Hydraulic cavity; 6. Screening structure; 61. Trapezoidal block; 62. Variable screening component; 621. Elastic rubber strip; 622. Hydraulic telescopic rod; 623. Connecting pipe; 624. Oil pump; 625. Second spring; 626. Slide block; 63. Buffer plate; 64. Buffer pad; 65. Stock cavity; 66. Arc guide block; 7. Second conveyor belt; 71. Wedge-shaped baffle. Specific implementation mode

[0020] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0021] Example 1, as Figure 1 and Figure 2 shown, a fruit screening structure for reducing damage includes an outer shell 2, a central control cabinet 3 is fixedly installed at the front end of the outer shell 2, a discharging equipment 4 is fixedly installed at the rear end of the outer shell 2, a visual analysis structure 1 is fixedly installed on the upper inner surface of the outer shell 2, a feeding structure 5 is fixedly installed on the upper inner surface of the outer shell 2, a plurality of screening structures 6 are fixedly connected in a staggered distribution on the inner surface of the outer shell 2, a second conveyor belt 7 is fixedly installed on the lower inner surface of the outer shell 2, and a wedge-shaped baffle 71 is fixedly installed on the part of the upper right side of the inner surface of the outer shell 2 where the second conveyor belt 7 is located.

[0022] It should be particularly noted that the above-mentioned visual analysis structure 1 is a conventional visual analysis device in the prior art, which can detect the variety, size range, etc. of fruits through comparison with the internal database, so as to control the screening structure 6 to adjust the size through the central control cabinet 3. This structure has been widely used in the prior art. In the present invention, only its function of analyzing the fruit type and size range is utilized, and its internal structure, operation principle, wiring and control method will not be elaborated further; The above-mentioned central control cabinet 3 is internally provided with a PLC controller and a motor, which are used to drive the start, stop and movement frequency of each internal material belt and other electrical equipment. It is a conventional control device in the prior art, and its internal structure and specific operation and control principle will not be shown and elaborated further in the present invention.

[0023] During the operation of this embodiment, first, fruits are fed into the feeding structure 5 through an external conveying structure, and the screening sizes of each screening structure 6 are adjusted by the visual analysis structure 1 installed above the feeding structure 5. By the action of the feeding structure 5, the fruits intermittently enter each screening structure 6 for screening. Finally, fruits of various sizes are sent into different packaging production lines through the discharging device 4 for packaging, thereby realizing the screening of different fruits. Through the cooperation of the feeding structure 5 and the screening structure 6, fruit damage is reduced, and the screening efficiency and application range are improved.

[0024] Embodiment 2: On the basis of Embodiment 1, this embodiment feeds fruits into the baffle 2 53 through the action of the conveyor belt 1 51, and blocks the fruits through the intermittent feeding component 54 arranged in the baffle 2 53. Through the cooperation of the electric telescopic rod 545, the piston rod 544 and the hydraulic cavity 546, the two sets of hydraulic rods 543 on both sides are driven to be in different states, so as to periodically release and block the fruits in rows, and then batch the fruits into the screening structure 6, realizing the alternating falling of the fruits, preventing collisions during the process of entering the screening structure 6 and causing damage to the fruits, and reducing the impact on the freshness and integrity of the fruits.

[0025] Specifically, in order to batch the fed fruits into the screening area and prevent collisions during the process of entering the screening structure 6 and causing damage to the fruits, refer to Figure 2 , the feeding structure 5 includes a baffle 1 52 fixedly connected to the right side inner surface of the housing 2. A conveyor belt 1 51 is fixedly installed on the upper part of the baffle 1 52 located under the visual analysis structure 1. A baffle 2 53 is fixedly installed on the part of the inner surface of the housing 2 located under the conveyor belt 1 51. Two symmetrically arranged chutes 531 are opened on the upper right side of the baffle 2 53. The two chutes 531 and the inner surface of the baffle 2 53 are jointly provided with an intermittent feeding component 54.

[0026] After the fruits enter the housing 2, the conveyor belt 1 51 conveys the fruits to the baffle 2 53. At this time, after the fruits pass through the visual analysis structure 1, the visual analysis structure 1 detects them, thereby driving the screening structure 6 to operate, and further controlling the action of the intermittent feeding component 54 according to the quantity and stacking degree of the fruits conveyed by the conveyor belt 1 51, so as to promote the alternating falling of the fruits and avoid additional collisions during the falling process and causing damage to the fruits.

[0027] Furthermore, in order to promote the staggered falling of the fruits, refer to Figure 4 , the intermittent feeding component 54 includes an electric telescopic rod 545 fixedly connected to the inner cavity of the baffle 2 53. Hydraulic cavities 546 are symmetrically opened in the inner cavity of the baffle 2 53 along the electric telescopic rod 545. Piston rods 544 fixedly connected to its output end are arranged on both the front and rear sides of the electric telescopic rod 545. The two piston rods 544 are both slidably connected to the inner surface of the adjacent hydraulic cavity 546.

[0028] Further, in order to realize driving the two baffles 541 to move alternately and cause the fruits to fall in batches, refer to Figure 4 The inner surfaces of the two slide grooves 531 are slidably connected with blocking rods 541, and the lower ends of the two blocking rods 541 are fixedly connected with a plurality of springs 542 fixedly connected to the bottom walls of the inner surfaces of the adjacent slide grooves 531 in an array. The lower ends of the two slide grooves 531 are fixedly connected with hydraulic rods 543 symmetrically front and back, and the two hydraulic rods 543 on one side are connected with the side of the inner surface of the hydraulic cavity 546 away from the electric telescopic rod 545 through oil pipes, and the two hydraulic rods 543 on the other side are connected with the side of the inner surface of the hydraulic cavity 546 close to the electric telescopic rod 545 through oil pipes. Based on the position change of the piston rod 544 in the hydraulic cavity 546, the two groups of hydraulic rods 543 move relative to each other.

[0029] In summary, under the cooperation of the electric telescopic rod 545 and the piston rod 544, the hydraulic oil in the hydraulic chamber 546 is divided into two states, thereby driving the two groups of hydraulic rods 543 under the conveyor belt 1 51 on both sides to present different states; First, when the electric telescopic rod 545 drives the hydraulic chamber 546 to contract, the hydraulic oil in the hydraulic chamber 546 near the electric telescopic rod 545 enters the two hydraulic rods 543 on the right through the oil pipe. At this time, the two hydraulic rods 543 extend, drive the blocking rod 541 to rise, and block the fruits on the right. At the same time, since the space of the hydraulic chamber 546 away from the electric telescopic rod 545 becomes larger, in order to maintain pressure balance, the hydraulic oil in the two hydraulic rods 543 on the left will enter the hydraulic chamber 546 through the oil pipe, and the two hydraulic rods 543 will retract, and the corresponding blocking rods 541 will drop, so that the fruits between the two blocking rods 541 fall into the screening structure 6 along the baffle 2 53; Secondly, when the electric telescopic rod 545 drives the hydraulic chamber 546 to extend, the space of the hydraulic chamber 546 close to the electric telescopic rod 545 becomes larger. In order to maintain pressure balance, the hydraulic oil in the two hydraulic rods 543 on the right side will enter the hydraulic chamber 546 through the oil pipe. At this time, the two hydraulic rods 543 on the right side will retract, and the corresponding baffle rods 541 will drop. At the same time, the hydraulic oil in the hydraulic chamber 546 away from the electric telescopic rod 545 side will enter the two hydraulic rods 543 on the left side through the oil pipe. The corresponding two baffle rods 541 will rise under the action of the hydraulic rods 543, and the fruit will pass through the two baffle rods 541 on the right side and hit the two baffle rods 541 on the left side.

[0030] Embodiment 3: Based on embodiment 2, this embodiment further realizes the screening of fruits that do not pass the size requirement, and utilizes the function of the variable screening component 62 to adapt to the screening requirements of different fruits and different sizes, thereby further improving the application scope of the equipment; simultaneously, the buffer pad 64 and the arc-shaped guide block 66 arranged on the inner side of the storage chamber 65 reduce the collision caused by the falling of fruits, thereby reducing the damage to the fruits and ensuring the quality of the fruits.

[0031] Specifically, to achieve the screening of fruits with different fruit diameters, refer to Figure 5 and Figure 6 , the screening structure 6 includes a trapezoidal block 61 fixedly connected to the inner surface of the visual analysis structure 1. A storage cavity 65 is provided in the inner cavity of the trapezoidal block 61, and a variable screening component 62 is provided at the upper end of the trapezoidal block 61.

[0032] The trapezoidal block 61 is trapezoidal with its inclined surface at the upper part, which is used to carry the fruits fed by the second baffle 53 and make them roll downward along the inclined surface of the trapezoidal block 61. The variable screening component 62 provided on its surface can make fruits of a certain size fall into the storage cavity 65, and those with a size larger than the screening size of the current variable screening component 62 will continue to roll downward along the trapezoidal block 61 on the variable screening component 62 and enter the next screening structure 6; The lowermost screening structure 6 is in contact with the second conveyor belt 7. It transports the batch of fruits with the largest fruit diameter. Through the action of the wedge-shaped baffle 71, the fruits are guided towards the direction of the discharging device 4 and enter the discharging device 4, and finally are sent into the packaging production line for large fruit diameters through the discharging device 4.

[0033] Furthermore, to achieve buffering of the fruits falling into the storage cavity 65, refer to Figure 5 and Figure 6 , a buffer plate 63 is fixedly connected to the inner surface of the storage cavity 65. The inclined surface part of the buffer plate 63 is parallel to the upper end of the trapezoidal block 61 and buffer pads 64 are coated at the positions corresponding to the variable screening component 62. An arc-shaped guiding block 66 is provided at the joint of the bottom wall of the inner surface of the storage cavity 65 and the inclined surface of the buffer plate 63. The storage cavity 65 penetrates the inner surface of the outer shell 2 and is communicated with the discharging device 4.

[0034] After the fruits fall into the storage cavity 65, they will first hit the buffer pads 64 coated on the buffer plate 63. The buffer pads 64 are made of flexible materials, made of rubber, which can buffer the objects hitting on their upper sides, avoid hard collisions, and thus reduce damage to the fruits; Synchronously, after hitting the upper part, the fruits will continue to roll downward along the buffer plate 63 and finally impact into the arc-shaped guiding block 66. The arc-shaped guiding block 66 is arc-shaped and also made of rubber, which will absorb the impact of the fruits and change the impact direction, making them move towards the storage cavity 65. There is a slope at the bottom edge of the storage cavity 65, which can make the fruits continue to roll towards the direction of the discharging device 4 after entering the bottom wall of the storage cavity 65 and be sent into the packaging production line through the discharging device 4.

[0035] Furthermore, to adapt to the screening of different fruits and adjust the screening size, refer to Figure 7 and Figure 8, the variable screening component 62 includes a number of elastic rubber strips 621 distributed in an array. At the mutually approaching ends of two adjacent elastic rubber strips 621, there are symmetrically arranged front and rear second springs 625. At both the left and right ends of the number of elastic rubber strips 621, there are fixedly connected sliders 626 that are slidably connected to the upper end of the trapezoidal block 61. Two adjacent sliders 626 are fixedly connected to a hydraulic telescopic rod 622 that is fixedly connected to the inner surface of the trapezoidal block 61. The number of hydraulic telescopic rods 622 are fixedly connected to a connecting pipe 623. On the input side of the connecting pipe 623, there is fixedly connected an oil pump 624 that is fixedly connected to the inner surface of the trapezoidal block 61.

[0036] It should be specifically noted that the elastic rubber strip 621 is made of a highly elastic food-grade silica gel material, which can reduce the hard collision of fruits during screening; Through the action of the oil pump 624 and the connecting pipe 623, hydraulic oil can be filled into or extracted from the hydraulic telescopic rod 622, thereby driving the extension and retraction of the hydraulic telescopic rod 622. Both sides of the hydraulic telescopic rod 622 are connected to the slider 626. When the hydraulic telescopic rod 622 extends or retracts, the distance between the corresponding two sliders 626 will also change, thereby driving the elastic rubber strip 621 to change its distance. At this time, fruits corresponding to a size less than or equal to the corresponding size can enter the storage cavity 65 through the gap between the elastic rubber strips 621, while fruits larger than this size will continue to slide downward along the elastic rubber strip 621 and enter the variable screening component 62 in the next screening structure 6 for further screening.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A fruit screening structure for reducing damage, comprising a housing (2), a central control cabinet (3) is fixedly installed at the front end of the housing (2), and a discharging device (4) is fixedly installed at the rear end of the housing (2), characterized in that: A visual analysis structure (1) is fixedly installed on the upper part of the inner surface of the housing (2), a feeding structure (5) is fixedly installed on the upper part of the inner surface of the housing (2), a plurality of screening structures (6) are fixedly connected in a staggered distribution on the inner surface of the housing (2), a second conveyor belt (7) is fixedly installed on the lower part of the inner surface of the housing (2), and a wedge-shaped baffle (71) is fixedly installed on the part of the inner surface of the housing (2) on the upper right side of the second conveyor belt (7).

2. The fruit screening structure for reducing damage according to claim 1, wherein: The feeding structure (5) includes a first baffle (52) fixedly connected to the right side of the inner surface of the housing (2). A first conveyor belt (51) is fixedly installed on the upper part of the first baffle (52) located below the visual analysis structure (1). A second baffle (53) is fixedly installed on the part of the inner surface of the housing (2) located below the first conveyor belt (51). Two sliding grooves (531) are symmetrically formed on the upper right side of the second baffle (53). An intermittent feeding assembly (54) is arranged on the inner surfaces of the two sliding grooves (531) and the second baffle (53).

3. The fruit screening structure for reducing damage according to claim 2, wherein: The intermittent feeding assembly (54) includes an electric telescopic rod (545) fixedly connected to the inner cavity of the second baffle (53). Hydraulic cavities (546) are symmetrically formed in the inner cavity of the second baffle (53) along the electric telescopic rod (545). Piston rods (544) fixedly connected to the output ends thereof are arranged on both the front and rear sides of the electric telescopic rod (545). The two piston rods (544) are slidably connected to the inner surfaces of the adjacent hydraulic cavities (546).

4. A fruit screening structure for reducing damage according to claim 3, characterized in that: Two stop rods (541) are slidably connected to the inner surfaces of the two sliding grooves (531). A plurality of first springs (542) fixedly connected to the bottom walls of the adjacent sliding grooves (531) are fixedly connected to the lower ends of the two stop rods (541) in an array distribution. Hydraulic rods (543) are symmetrically fixedly connected to the lower ends of the two sliding grooves (531) in the front and rear directions. Two of the hydraulic rods (543) on one side are communicated with the side of the inner surface of the hydraulic cavity (546) far from the electric telescopic rod (545) through a pipeline, and two of the hydraulic rods (543) on the other side are communicated with the side of the inner surface of the hydraulic cavity (546) close to the electric telescopic rod (545) through a pipeline. Based on the change in the position of the piston rod (544) in the hydraulic cavity (546), the two groups of hydraulic rods (543) move relatively.

5. A fruit screening structure for reducing damage according to claim 1, characterized in that: The screening structure (6) includes a trapezoidal block (61) fixedly connected to the inner surface of the visual analysis structure (1). A storage cavity (65) is formed in the inner cavity of the trapezoidal block (61). A variable screening assembly (62) is arranged at the upper end of the trapezoidal block (61).

6. The fruit screening structure for reducing damage according to claim 5, wherein: A buffer plate (63) is fixedly connected to the inner surface of the storage cavity (65). The inclined surface part of the buffer plate (63) is parallel to the upper end of the trapezoidal block (61), and buffer pads (64) are coated at the positions corresponding to the variable screening assembly (62). An arc-shaped guiding block (66) is arranged at the joint of the bottom wall of the inner surface of the storage cavity (65) and the inclined surface of the buffer plate (63). The storage cavity (65) penetrates through the inner surface of the housing (2) and is communicated with the discharging device (4).

7. A fruit screening structure for reducing damage according to claim 5, characterized in that: The variable screening component (62) includes a number of elastic rubber strips (621) distributed in an array. At one end of two adjacent elastic rubber strips (621) close to each other, there are symmetrically arranged second springs (625) in the front and back. At both the left and right ends of the number of elastic rubber strips (621), there are sliders (626) fixedly connected and slidably connected to the upper end of the trapezoidal block (61). Two adjacent sliders (626) are fixedly connected with a hydraulic telescopic rod (622) fixedly connected to the inner surface of the trapezoidal block (61).

8. A fruit screening structure for reducing damage according to claim 7, characterized in that: A number of the hydraulic telescopic rods (622) are fixedly connected with a connecting pipe (623). On the input side of the connecting pipe (623), there is an oil pump (624) fixedly connected to the inner surface of the trapezoidal block (61).

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