An isolation pick-up passage for a refrigerated van

Abstract

The present invention provides an isolated pick-up passage for a refrigerated van, which includes a mobile rack and a box body arranged at the top of the mobile rack. A cold storage component is arranged on one side of the box body. In terms of cold air preservation and cargo quality assurance, in the present invention, the staff operate in an independent box body, which is isolated from the van body, greatly reducing the direct loss of cold air in the van body. The progressive opening and adjustable size design of the loading door avoid the opening of unnecessary space, significantly reduce cold air loss, reduce refrigeration energy consumption, and maintain the stability of the refrigerated environment. The automatic opening of the loading door improves the pick-up efficiency. The gear and rack transmission structure is stable and precise, and the springs and tension springs buffer the movement of the loading door, reducing mechanical impact and extending the service life of the equipment. In addition, in terms of cargo handling assistance and equipment maintenance, the eight-shaped inclined plate and rotating rod guide the cargo and reduce friction, improving the conveying efficiency and protecting the cargo.

Description

Technical Field

[0001] The present invention relates to the technical field of pick-up channels for refrigerated trucks, and particularly to a separated pick-up channel for a refrigerated van. Background Art

[0002] In the modern cold chain logistics transportation system, refrigerated vans play a crucial role in safely and efficiently transporting various temperature-sensitive goods, such as fresh food, pharmaceuticals, etc., to their destinations. However, traditional refrigerated vans face many problems during the pick-up process. On the one hand, frequently opening the van door directly for pick-up will cause a large amount of external hot air to quickly rush into the van. Since the goods inside the van need to maintain a specific low-temperature environment, the entry of external hot air will break the original temperature balance inside the van and it is difficult to restore the temperature to the original set value in a short time, which makes the refrigeration system consume more energy to re-adjust the temperature. This not only increases energy consumption, but during this period, the goods not taken out inside the carriage are in an abnormal temperature environment for a long time, greatly increasing the risk of spoilage or deterioration.

[0003] When the existing separated pick-up channel for a refrigerated van is used for pick-up, the conventional method is to fully open half of the box door and half of the refrigerated truck door, which exposes a large amount of unnecessary pick-up space, resulting in a rapid and large loss of cold air. On the one hand, it is difficult to maintain a stable temperature inside the van, greatly increasing the risk of spoilage and deterioration of the goods and seriously affecting the cold freshness quality of the goods; on the other hand, the frequent loss of cold air forces the refrigeration equipment to continuously work at a high intensity to restore the temperature, significantly increasing the refrigeration energy consumption and causing energy waste. Moreover, the existing pick-up method has a fixed box door size and cannot be flexibly adjusted according to the specifications of the goods, with extremely poor adaptability to different sizes of goods. It is neither conducive to efficient pick-up and placement of goods nor can it reduce cold air loss by precisely controlling the opening space, and overall it is difficult to meet the requirements of cold chain transportation for high efficiency, energy conservation, and guarantee of goods quality. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects existing in the prior art, and the present invention proposes a separated pick-up channel for a refrigerated van.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is a separated pick-up channel for a refrigerated van, including a moving frame and a box body arranged at the top of the moving frame. A cold storage component is arranged on one side of the box body, and the cold storage component is used to release cold to the inside of the box body to maintain a low-temperature environment. A conveyor belt is fixedly installed inside the box body, and a position sensor is fixedly installed on one side of the conveyor belt. An inlet door and an entrance are respectively opened on both sides of the box body. The entrance is an opening for the staff to enter the inside of the box body, and the inlet door is an opening for goods to enter and exit. A driving structure and an inlet door assembly are arranged on one side of the box body, and a guiding structure is arranged on one side of the inlet door assembly;

[0006] The driving structure includes a fixed housing arranged on one side of the box body. A gear is rotatably connected inside the fixed housing. The driving structure further includes a first rack and a second rack slidably connected inside the fixed housing. Both the first rack and the second rack are meshed with the gear;

[0007] The incoming door assembly includes a second incoming door and a fourth incoming door slidably connected to one side of the box body. A first incoming door and a third incoming door are respectively slidably connected to the inner sides of the second incoming door and the fourth incoming door. The first incoming door and the third incoming door are respectively connected to the first rack and the second rack;

[0008] The guiding structure includes inclined plates arranged on one side of each of the first incoming door and the third incoming door. A rotating rod is rotatably connected to the inner side of the inclined plate. The two inclined plates are in a V-shaped configuration, and multiple groups of rotating rods are equally spaced;

[0009] Further, a support plate is arranged on one side of the fixed housing for fixing the motor. The output end of the motor extends into the fixed housing, and the motor is connected to the gear.

[0010] Further, slide rails are provided at the bottom end of the fixed housing. Two groups of slide rails are symmetrically arranged. One end of each of the first rack and the second rack is respectively provided with a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate move in opposite directions. A notch is provided on the bottom surface of the fixed housing, and the first rack and the second rack are slidably connected to the notch.

[0011] Further, a sliding plate is arranged on each side of the first rack and the second rack. Two groups of slide rails are arranged on one side of the box body symmetrically about the center axis of the box body, and the two groups of slide rails are respectively slidably connected to the sliding plates.

[0012] Further, the second incoming door and the fourth incoming door are larger in size than the first incoming door and the third incoming door. A first slider and a first convex block are arranged on one side of each of the first incoming door and the third incoming door. The first slider and the first convex block are respectively slidably connected to the grooves provided on the surface of the box body. A spring and a tension spring are respectively arranged on one side of the first slider and the first convex block, and the spring and the tension spring are respectively connected to the grooves.

[0013] Further, a first storage groove is provided inside the first incoming door. A first heating wire is fixedly installed inside the first storage groove, and a first cover plate is fixedly installed on one side of the first storage groove.

[0014] Further, a second storage groove is provided inside the third incoming door. A second heating wire is fixedly installed inside the second storage groove, and a second cover plate is fixedly installed on one side of the second storage groove.

[0015] Furthermore, a scraping structure is provided on one side of the box body, and the scraping structure includes a rotating shaft rotatably connected to one side of the box body, and a belt 1 is sleeved on the rotating shaft and the surface of the motor output end. The scraping structure also includes a driven rod rotatably connected to one side of the box body, and a belt 2 is sleeved on the driven rod and the surface of the rotating shaft. A rotating disk is provided on one side of the driven rod, and a round block is provided on the surface of the rotating disk.

[0016] Furthermore, an extension plate is provided on one side of the box body, a frame block is provided at one end of the extension plate, a push plate is slidably connected inside the frame block, a hollow plate is provided at one end of the push plate, and the hollow plate is slidably connected to the round block.

[0017] Furthermore, a scraping plate is provided at the other end of the push plate, which is inclined. There are two groups of scraping plates symmetrically distributed about the cargo door. The scraping plates move back and forth, and one side of the scraping plates contacts the inner side of the cargo door one and the cargo door three.

[0018] Compared with the prior art, the beneficial effects of the present invention include a mobile rack and a box body arranged at the top of the mobile rack, a cold storage component is arranged on one side of the box body, the cold storage component is used to release cold energy to the inside of the box body to maintain a low temperature environment, a conveyor belt is fixedly installed inside the box body, a position sensor is fixedly installed on one side of the conveyor belt, a cargo door and an entrance are respectively opened on both sides of the box body, the entrance is an opening for staff to enter the inside of the box body, and the cargo door is an opening for goods to enter and exit, a driving structure and a cargo door assembly are arranged on one side of the box body, and a guide structure is arranged on one side of the cargo door assembly. In terms of cold air preservation and cargo quality assurance, the staff operates in an independent box body, which is isolated from the truck body, greatly reducing Cold air in the truck compartment is directly lost; the cold storage components inside the box maintain a low temperature environment, ensuring the freshness of the goods to the greatest extent; the progressive opening and adjustable size design of the incoming door avoid unnecessary opening of the space, significantly reducing cold air loss, lowering refrigeration energy consumption, and maintaining a stable refrigerated environment. Furthermore, in terms of automated control and equipment durability, the position sensor, control console, and motor are linked to achieve automatic opening of the incoming door, improving the efficiency of picking up goods; the gear and rack transmission structure is stable and precise, and the spring and tension spring cushion the movement of the incoming door, reducing mechanical impact and extending the service life of the equipment. In addition, in terms of cargo handling assistance and equipment maintenance, the eight-shaped inclined plate and rotating rod guide the goods and reduce friction, improving transportation efficiency and protecting the goods.

[0019] It also uses heating wire defrosting combined with defrosting plates to effectively solve the problem of frost jamming on the cargo door, ensure the normal opening and closing of the cargo door, avoid cold air leakage, maintain a stable low-temperature environment in the box, reduce manual defrosting operations, and improve the convenience of equipment use and overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them:

[0021] Figure 1 Schematically shows the overall three-dimensional structural diagram of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0022] Figure 2 Schematically shows the overall three-dimensional side view unfolded structural diagram of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0023] Figure 3 Schematically shows the three-dimensional structural diagram of the box body, conveyor belt and inlet door of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0024] Figure 4 Schematically shows the three-dimensional structural diagram of the drive structure, moving structure, scraping structure and inlet door assembly of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0025] Figure 5 Schematically shows the three-dimensional unfolded structural diagram of the drive structure of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0026] Figure 6 Schematically shows the three-dimensional structural diagram of the inlet door assembly and guiding structure of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0027] Figure 7 Schematically shows the three-dimensional side view structural diagram of the inlet door assembly and guiding structure of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0028] Figure 8 Schematically shows the three-dimensional structural diagram of the scraping structure of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention;

[0029] Figure 9 Schematically shows the three-dimensional structural diagram of the heating structure of an isolated pick-up passage for a refrigerated van according to an embodiment of the present invention.

[0030] In the figure: 1. Moving frame; 2. Box body; 3. Cold storage component; 4. Conveyor belt; 5. Position sensor; 6. Driving structure; 61. Fixed shell; 62. Support plate; 63. Motor; 64. Gear; 65. First rack; 66. First connecting plate; 67. Second rack; 68. Second connecting plate; 69. Slide plate; 610. Slide rail; 611. Notch; 7. Inlet door assembly; 71. First inlet door; 711. First storage groove; 712. First heating wire; 713. First cover plate; 72. Second inlet door; 73. First slider; 74. Spring; 75. First bump; 76. Tension spring; 77. Third inlet door; 771. Second storage groove; 772. Second heating wire; 773. Second cover plate; 78. Fourth inlet door; 8. Guiding structure; 81. Inclined plate; 82. Rotating rod; 9. Shoveling structure; 91. First belt; 92. Rotating shaft; 93. Second belt; 94. Driven rod; 95. Rotating disk; 96. Round block; 97. Hollow plate; 98. Pushing plate; 99. Extended plate; 910. Frame block; 911. Shoveling plate; 10. Inlet door; 11. Entrance. Specific embodiments

[0031] It is easy to understand that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation methods. Therefore, the following specific embodiments and the accompanying drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0032] According to an embodiment of the present invention in combination with Figures 1-9 As shown, the driving structure 6 includes a fixed shell 61 arranged on one side of the box body 2. A gear 64 is rotatably connected inside the fixed shell 61. The driving structure 6 further includes a first rack 65 and a second rack 67 slidably connected inside the fixed shell 61. Both the first rack 65 and the second rack 67 are meshed with the gear 64. A support plate 62 is arranged on one side of the fixed shell 61. The support plate 62 is used to fix the motor 63. The output end of the motor 63 extends into the fixed shell 61. The motor 63 is connected to the gear 64. Slide rails 610 are opened at the bottom end of the fixed shell 61. Two groups of slide rails 610 are symmetrically opened. One end of each of the first rack 65 and the second rack 67 is provided with a first connecting plate 66 and a second connecting plate 68 respectively. The first connecting plate 66 and the second connecting plate 68 move in opposite directions. A notch 611 is opened on the bottom surface of the fixed shell 61. The first rack 65 and the second rack 67 are slidably connected with the notch 611. Slide plates 69 are arranged on one side of each of the first rack 65 and the second rack 67. Two groups of slide rails 610 are arranged on one side of the box body 2. The two groups of slide rails 610 are symmetrically distributed about the center axis of the box body 2. The two groups of slide rails 610 are respectively slidably connected with the slide plates 69. The inlet door 10 is opened progressively, reducing the instantaneous large loss of cold air inside the box body 2 and maintaining a good refrigerated environment in the box body 2.

[0033] The incoming door assembly 7 includes an incoming door two 72 and an incoming door four 78 that are slidably connected to one side of the box body 2. An incoming door one 71 and an incoming door three 77 are respectively slidably connected to the inner sides of the incoming door two 72 and the incoming door four 78. The incoming door one 71 and the incoming door three 77 are respectively connected to a rack one 65 and a rack two 67. The sizes of the incoming door two 72 and the incoming door four 78 are larger than those of the incoming door one 71 and the incoming door three 77. One side of each of the incoming door one 71 and the incoming door three 77 is provided with a slider one 73 and a convex block one 75. The slider one 73 and the convex block one 75 are respectively slidably connected to the chute grooves opened on the surface of the box body 2. One side of the slider one 73 and the convex block one 75 is respectively provided with a spring 74 and a tension spring 76. The spring 74 and the tension spring 76 are respectively connected to the chute grooves, which can adjust the size of the incoming door, greatly improving the adaptability of the equipment to goods of different specifications. There is no need to open the unnecessary incoming door space as a whole, significantly reducing the cold air loss.

[0034] The guiding structure 8 includes inclined plates 81 provided on one side of each of the incoming door one 71 and the incoming door three 77. A rotating rod 82 is rotatably connected to the inner side of the inclined plate 81. The two groups of inclined plates 81 are in a shape of an eight. Multiple groups of the rotating rods 82 are equally spaced, reducing the resistance of goods handling and improving the goods conveying efficiency.

[0035] A storage groove one 711 is opened inside the incoming door one 71. A heating wire one 712 is fixedly installed inside the storage groove one 711. A cover plate one 713 is fixedly installed on one side of the storage groove one 711. A storage groove two 771 is opened inside the incoming door three 77. A heating wire two 772 is fixedly installed inside the storage groove two 771. A cover plate two 773 is fixedly installed on one side of the storage groove two 771. The defrosting by the heating wire effectively solves the problem of frosting and jamming of the incoming door.

[0036] A scraping structure 9 is provided on one side of the box body 2. The scraping structure 9 includes a rotating shaft 92 rotatably connected to one side of the box body 2. A belt one 91 is sleeved on the surface of the output end of the rotating shaft 9 and the motor 63. The scraping structure 9 further includes a driven rod 94 rotatably connected to one side of the box body 2. A belt two 93 is sleeved on the surface of the rotating shaft 92 and the driven rod 94. One side of the driven rod 94 is provided with a rotating disc 95. A round block 96 is provided on the surface of the rotating disc 95. An extension plate 99 is provided on one side of the box body 2. One end of the extension plate 99 is provided with a frame block 910. A push plate 98 is slidably connected inside the frame block 910. One end of the push plate 98 is provided with a hollow plate 97. The hollow plate 97 is slidably connected to the round block 96. The other end of the push plate 98 is provided with a scraping plate 911. The scraping plate 911 is inclined. Two groups of the scraping plates 911 are symmetrically distributed with respect to the incoming door 10. The scraping plate 911 moves reciprocally. One side of the scraping plate 911 is in contact with the inner sides of the incoming door one 71 and the incoming door three 77, thoroughly removing the frost on the inner surface of the incoming door 10 and reducing the influence of the frost layer accumulation on the sealing performance and the smooth opening and closing of the incoming door 10.

[0037] Specifically, when in use, when it is necessary to take out some of the goods in the truck compartment, push the movable rack 1 close to the tail of the truck compartment for docking, and then lock the universal wheels. Then, open half of the door of the truck body, and at the same time insert the conveyor belt 4 protruding from one end of the box body 2 into the inside of the truck compartment. At this time, the staff enters the inside of the box body 2 through the entrance 11 on one side of the box body 2. Subsequently, close the entrance 11, and the inside of the box body 2 performs cold storage work through the cold storage component 3 to ensure the cold freshness of the goods. The setting of the movable rack 1 facilitates flexible adjustment of the picking position, and the locking of the universal wheels ensures the stability of the equipment during the operation. The conveyor belt 4 is inserted into the truck compartment, reducing the goods handling distance and labor intensity. The staff enters the independent box body 2 for operation, isolated from the truck body, reducing the direct loss of cold air in the truck compartment. The cold storage component 3 maintains the low-temperature environment of the box body 2, ensuring the cold freshness quality of the goods to the greatest extent;

[0038] After that, the staff activates the driving device of the conveyor belt 4. The conveyor belt 4 is an adjustable telescopic structure, which belongs to the prior art and will not be described in detail here. By driving the telescopic structure of the conveyor belt 4, the end inserted into the truck interior is unfolded, facilitating the transportation of goods from the interior of the refrigerated truck to the interior of the box body 2, thus realizing isolated goods picking. The conveyor belt 4 starts to convey the goods. When the goods are conveyed to the area detected by the position sensor 5, the position sensor 5 will transmit the position information of the goods to the console. The central console will activate the electrically connected motor 63. The motor 63 is fixedly connected to the fixed shell 61 through the support plate 62. The fixed shell 61 is fixedly installed on the box body 2. One end of the motor 63 extends into the interior of the fixed shell 61. The motor 63 drives the gear 64 at the output end to rotate. The gear 64 meshes with the first rack 65 and the second rack 67, causing the first rack 65 and the second rack 67 to move in opposite directions. The first rack 65 and the second rack 67 are slidably connected to the fixed shell 61 and slide respectively inside the notch 611. The first rack 65 and the second rack 67 drive the connecting plates one 66 and the connecting plates two 68 at their respective ends to move in opposite directions. At the same time, the first rack 65 and the second rack 67 drive the sliding plates 69 on their respective sides to slide on the slide rails 610 fixed on the surface of the box body 2, thereby causing the connecting plates one 66 and the connecting plates two 68 to drive the inlet door one 71 and the inlet door three 77 to slide in opposite directions. Further, the inlet door one 71 and the inlet door three 77 are slidably connected to the box body 2 through the sliders one 73 and the bumps one 75 on one side respectively, causing the springs 74 and the tension springs 76 on one side of each of the sliders one 73 and the bumps one 75 to be stretched and store energy. And the inlet door one 71 and the inlet door three 77 are slidably connected to the inlet door two 72 and the inlet door four 78 respectively. As the inlet door one 71 and the inlet door three 77 slide, the inlet door 10 slowly opens. In this way, the goods inside the refrigerated truck are conveyed to the interior of the box body 2 through the conveyor belt 4. The adjustable telescopic conveyor belt 4 can adapt to different truck carriage depths, enhancing the versatility of the equipment. The linkage between the position sensor 5, the console and the motor 63 realizes the automatic control of the opening of the inlet door, reducing manual operation and improving the picking efficiency. The gear 64 and the rack transmission structure is stable and reliable, precisely controlling the movement of the inlet door. The settings of the spring 74 and the tension spring 76 buffer the movement of the inlet door 10, reducing mechanical shock and extending the service life of the equipment. The gradual opening of the inlet door 10 reduces the sudden large loss of cold air inside the box body 2, maintaining a good refrigerated environment in the box body 2;

[0039] When the length of the goods is relatively wide, the motor 63 can be continuously driven to rotate, so that the first loading door 71 and the third loading door 77 respectively push the second loading door 72 and the fourth loading door 78 to slide to both sides. The second loading door 72 and the fourth loading door 78 are respectively slidably connected to the box body 2. The second loading door 72 and the fourth loading door 78 slide to both sides to expand the length of the goods inlet. Therefore, it is convenient to adjust the opening size of the loading door 10 according to the size of the goods, avoiding the need to open half of the door of the box body 2 and half of the door of the refrigerated truck for picking up goods like the existing picking methods, resulting in the opening of the space on the upper part of the half door that is not needed for picking up goods, causing the cold air of the refrigerated truck and the box body 2 to escape quickly. The adjustable loading door size greatly improves the adaptability of the equipment to different specifications of goods. Without the need to open the unnecessary loading door space as a whole, it significantly reduces the cold air loss, reduces the refrigeration energy consumption, maintains the stability of the refrigerated environment while ensuring the smooth picking up and placing of goods, and improves the energy utilization efficiency;

[0040] In addition, inclined plates 81 are respectively arranged on one side of the first loading door 71 and the third loading door 77. The two groups of inclined plates 81 are in a V-shaped state. And rotating rods 82 are rotatably connected to the side of the inclined plates 81 close to the goods. Multiple groups of rotating rods 82 are evenly distributed at equal intervals. The V-shaped inclined plates 81 guide the goods to smoothly enter the loading door area. The setting of the rotating rods 82 reduces the friction between the goods and the inclined plates 81, reduces the resistance of goods handling, improves the goods conveying efficiency, and at the same time reduces the wear of the goods during handling and protects the integrity of the goods;

[0041] When the inner surfaces of the first loading door 71 and the third loading door 77 are frosted, it is easy to cause the first loading door 71 and the third loading door 77 to get stuck when closing. Since receiving grooves 711 and 771 are respectively opened inside the first loading door 71 and the third loading door 77, and heating wires 712 and 772 are fixedly installed inside the receiving grooves 711 and 771 respectively. The receiving grooves 711 and 771 are respectively fixedly connected with cover plates 713 and 773. By starting the heating wires 712 and 772, the surface temperatures of the cover plates 713 and 773 are increased, so that the frost melts. The heating wires for defrosting effectively solve the problem of frost-caused jamming of the loading door, ensure the normal opening and closing of the loading door 10, avoid cold air leakage caused by the inability to close the loading door 10, maintain a stable low-temperature environment inside the box body 2, ensure that the cold fresh state of the goods is not affected, and at the same time reduce the manual defrosting operation and improve the convenience of equipment use;

[0042] With the rotation of the motor 63, the rotating shaft 92 on one side of the belt one 91 sleeved on the surface will be driven to rotate. The rotating shaft 92 will drive the driven rod 94 to rotate through the belt two 93 sleeved on the surface. The driven rod 94 will drive the round block 96 on the surface of the rotating disk 95 to rotate. The round block 96 will slide from one end of the hollow plate 97 to the other end. The hollow plate 97 will drive the push plate 98 to reciprocate. The push plate 98 is slidably connected to the frame block 910. The frame block 910 is fixedly connected to the inner wall of the box body 2 through the extension plate 99. The push plate 98 will drive the scraping plate 911 to reciprocate. The scraping plate 911 is inclined and symmetrically distributed in two groups. The side away from the push plate 98 is in contact with the inner sides of the inlet door one 71 and the inlet door three 77. Therefore, the reciprocating scraping plate 911 will scrape off the frost on the inner sides of the inlet door one 71 and the inlet door three 77, further strengthening the defrosting effect. Cooperating with the heating wire defrosting, it can more thoroughly remove the frost on the inner surface of the inlet door 10, reduce the influence of frost layer accumulation on the sealing performance and the smooth opening and closing of the inlet door 10, continuously ensure the normal operation of the equipment, ensure good refrigeration conditions inside the box body 2, and extend the overall service life of the equipment.

[0043] The technical scope of the present invention is not limited to the content described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. An isolation pick-up passage for a refrigerated van, characterized in that, It includes a moving frame and a box body arranged at the top of the moving frame. One side of the box body is provided with a cold storage component, which is used to release cold energy into the box body to maintain a low-temperature environment. A conveyor belt is fixedly installed inside the box body, and a position sensor is fixedly installed on one side of the conveyor belt. Inlets are respectively opened on both sides of the box body. The inlet is an opening for staff to enter the inside of the box body, and the goods inlet door is an opening for goods to enter and exit. A driving structure and a goods inlet door assembly are arranged on one side of the box body, and a guiding structure is arranged on one side of the goods inlet door assembly; The driving structure includes a fixed shell arranged on one side of the box body. A gear is rotatably connected inside the fixed shell. The driving structure further includes a first rack and a second rack slidably connected inside the fixed shell. Both the first rack and the second rack are meshed with the gear; The goods inlet door assembly includes a second goods inlet door and a fourth goods inlet door slidably connected to one side of the box body. A first goods inlet door and a third goods inlet door are respectively slidably connected to the inner sides of the second goods inlet door and the fourth goods inlet door. The first goods inlet door and the third goods inlet door are respectively connected to the first rack and the second rack; The guiding structure includes inclined plates arranged on each side of the first goods inlet door and the third goods inlet door. A rotating rod is rotatably connected to the inner side of the inclined plate. The two inclined plates are in a V-shaped arrangement, and multiple groups of rotating rods are evenly distributed at equal intervals; A scraping structure is arranged on one side of the box body. The scraping structure includes a rotating shaft rotatably connected to one side of the box body. A first belt is sleeved on the surface of the rotating shaft and the output end of the motor. The scraping structure further includes a driven rod rotatably connected to one side of the box body. A second belt is sleeved on the surface of the driven rod and the rotating shaft. A rotating disk is arranged on one side of the driven rod, and a round block is arranged on the surface of the rotating disk; An extension plate is arranged on one side of the box body. A frame block is arranged at one end of the extension plate. A push plate is slidably connected inside the frame block. A hollow plate is arranged at one end of the push plate, and the hollow plate is slidably connected to the round block; A scraping plate is arranged at the other end of the push plate. The scraping plate is inclined. Two groups of scraping plates are symmetrically distributed with respect to the goods inlet door. The scraping plate moves reciprocally, and one side of the scraping plate is in contact with the inner sides of the first goods inlet door and the third goods inlet door.

2. The isolated pick-up passage for a refrigerated van as claimed in claim 1, wherein A support plate is arranged on one side of the fixed shell, which is used to fix the motor. The output end of the motor extends into the fixed shell, and the motor is connected to the gear.

3. The isolated picking channel for a refrigerated van as claimed in claim 1, wherein Sliding rails are opened at the bottom end of the fixed shell. Two groups of sliding rails are symmetrically opened. One end of each of the first rack and the second rack is respectively provided with a first connecting plate and a second connecting plate. The first connecting plate and the second connecting plate move in opposite directions. A notch is opened on the bottom surface of the fixed shell, and the first connecting plate and the second connecting plate are slidably connected to the notch.

4. The isolated pick-up passage for a refrigerated van as described in claim 3, wherein, Sliding plates are arranged on each side of the first rack and the second rack. Sliding rails are arranged on one side of the box body. Two groups of sliding rails are symmetrically distributed with respect to the center axis of the box body, and the two groups of sliding rails are respectively slidably connected to the sliding plates.

5. The isolated pick-up passage for a refrigerated van as claimed in claim 1, wherein The sizes of the second goods inlet door and the fourth goods inlet door are larger than those of the first goods inlet door and the third goods inlet door. A first slider and a first convex block are arranged on each side of the first goods inlet door and the third goods inlet door. The first slider and the first convex block are respectively slidably connected to the grooves opened on the surface of the box body. A spring and a tension spring are respectively arranged on one side of the first slider and the first convex block, and the spring and the tension spring are respectively connected to the grooves.

6. The isolated pick-up passage for a refrigerated van as claimed in claim 5, wherein, A storage groove 1 is provided inside the inlet door 1. A heating wire 1 is fixedly installed inside the storage groove 1. A cover plate 1 is fixedly installed on one side of the storage groove 1.

7. The isolated pick-up passage for a refrigerated van as claimed in claim 5, characterized in that, A storage groove 2 is provided inside the inlet door 3. A heating wire 2 is fixedly installed inside the storage groove 2. A cover plate 2 is fixedly installed on one side of the storage groove 2.

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