Low-temperature logistics carriage based on cold chain transportation

Abstract

The invention relates to the technical field of logistics transportation, in particular to a low-temperature logistics compartment based on cold chain transportation, which comprises a low-temperature compartment body, one end of the low-temperature compartment body is provided with a traction part connected with a vehicle head, and one end, far away from the traction part, of the low-temperature compartment body is provided with an openable and closable compartment door. A storage cavity for storing low-temperature goods is further formed in the middle of the low-temperature compartment body, a temporary storage device for temporarily storing the low-temperature goods is arranged at the bottom of the low-temperature compartment body, a storage device for driving the temporary storage device to turn over and move is arranged below the temporary storage device, and the temporary storage device is arranged below the compartment door; through cooperation of the fixing plate, the turnover device, the storage device, the transmission mechanism and other structures, after the low-temperature goods are placed on the temporary storage device, the low-temperature goods are inspected, workers do not need to bend down and lift hands for many times, physical output in the loading and unloading process is reduced, and the workers can conveniently inspect the low-temperature goods.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics and transportation, and in particular to a low-temperature logistics carriage based on cold chain transportation. Background Art

[0002] At present, when transporting some goods that need low-temperature refrigeration, they are generally transported by cold chain vehicles, and the goods are stored and transported at low temperatures in the low-temperature cold chain compartments on the cold chain vehicles, so as to ensure the shelf life and quality of the low-temperature items.

[0003] When inspecting the goods inside the existing low-temperature carriage, the low-temperature goods need to be taken out of the low-temperature carriage, moved to the outside of the low-temperature carriage, and placed on the ground for unpacking inspection. The height of the general low-temperature carriage is relatively high. When the low-temperature goods are moved many times, the workers need to bend down and raise their hands many times, which increases the physical exertion during the loading and unloading process and is not convenient for daily inspection. Therefore, we propose a low-temperature logistics carriage based on cold chain transportation. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a low-temperature logistics carriage based on cold chain transportation.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A low-temperature logistics carriage based on cold chain transportation, comprising: A low-temperature carriage body, wherein one end of the low-temperature carriage body is provided with a traction part connected to the front of the vehicle, and an openable and closable box door is provided at one end of the low-temperature carriage body away from the traction part, and a storage cavity for storing low-temperature goods is also provided in the middle of the low-temperature carriage body; A temporary storage device for temporarily storing low-temperature goods is provided at the bottom of the low-temperature carriage body, and a receiving device for driving the temporary storage device to flip and move is provided below the temporary storage device. The temporary storage device is provided below the compartment door, and the temporary storage device is driven to move by the receiving device. After the temporary storage device moves to the side of the traction part, the temporary storage device is used to store the low-temperature goods, so that people can check the low-temperature goods outside the carriage easily. The temporary storage device includes two fixed plates fixed to the bottom of the low-temperature compartment body and two extension plates arranged on the storage device. The bottom of the two extension plates is provided with a flipping mechanism for facilitating the movement of the extension plates. The flipping mechanism is arranged above the storage device. The two fixed plates are symmetrically installed on both sides of the storage device, and an adjustment mechanism is also arranged between one of the fixed plates and the storage device. The two extension plates are driven to flip through the flipping mechanism, so that the extension plates are flipped to the oblique upper side of the storage device, thereby increasing the storage area for low-temperature products and facilitating the storage of more low-temperature goods. The storage device includes an outer frame fixed to the bottom of two fixed plates, the middle part of the outer frame is recessed inward to form a storage cavity, an extension mechanism for driving the temporary storage device to move is arranged inside the storage cavity, and a limiting mechanism for limiting the extension plate is also arranged between the extension mechanism and the two extension plates. The limiting mechanism is used to limit the flipping angle of the extension plate, so that the extension plate can be perpendicular to the storage device or flipped to both sides of the storage device.

[0006] As a preferred technical solution of the present invention, the extension mechanism includes a top plate arranged on the outer frame, two plug plates are symmetrically fixed on the bottom of the top plate, the two plug plates are inserted into the storage cavity, and two transmission mechanisms are arranged between the plug plates and the outer frame, a blocking rod is arranged between the two transmission mechanisms, and the end of the hinge away from the flip plate is fixed to the side of the top plate, and the two transmission mechanisms are driven to move by the blocking rod so that the two transmission mechanisms move to the outside of the top plate, and the two transmission mechanisms drive the top plate to move to the side of the outer frame, and a stretchable pull plate is also arranged on the side of the top plate, a sliding rod is fixed on the pull plate, a limiting plate is arranged at one end of the sliding rod away from the pull plate, a card slot matched with the pull plate is opened on the top plate, an annular groove matched with the limiting plate is arranged inside the card slot, and a through groove matched with the sliding rod is arranged at one end of the annular groove The locking plate is moved to the outside of the slot, and the sliding bar drives the limiting plate to move along the inside of the annular groove, and the limiting plate moves to the side close to the through hole, so that the limiting plate drives the top plate to move, so that the two transmission mechanisms drive to move, and when the pull plate moves to the outside of the slot, the pulling of the pull plate is stopped, and when the flip plate flips to the side of the outer frame, the flip plate is supported by the pull plate and the sliding bar, thereby not only ensuring that the flip plate and the top plate remain level, but also increasing the supporting force of the flip plate to prevent the flip plate from collapsing and causing low-temperature goods to fall and be damaged.

[0007] As a preferred technical solution of the present invention, the transmission mechanism includes a first operating rod and a second operating rod fixed thereto, one end of the first operating rod is rotatably connected to the plug plate, the end of the first operating rod away from the plug plate is rotatably connected to the inner wall of the storage chamber, one end of the second operating rod is rotatably connected to the middle part of the plug plate, and the end of the second operating rod away from the plug plate is rotatably connected to the outer frame, the second operating rod is arranged in an L shape, and the two ends of the baffle rod are rotatably installed at the inflection points of the two second operating rods, and by pulling the top plate, the top plate drives the first operating rod and the second operating rod to move, so that the top plate moves obliquely upward, and the top plate moves to the side of the outer frame.

[0008] As a preferred technical solution of the present invention, the flip mechanism includes a flip plate arranged on the extension mechanism, and two hinges are fixed on the side of the flip plate. The ends of the two hinges away from the flip plate are connected to the extension mechanism. The flip plate is driven to flip by the hinges, so that the flip plate is moved to the side of the extension mechanism, and the flip plate and the extension mechanism are spliced, thereby increasing the usable area for storing low-temperature goods.

[0009] As a preferred technical solution of the present invention, two positioning blocks are symmetrically fixed on the top of the flip plate, two arc-shaped chamfers are arranged on opposite sides of the two extension plates, two grooves are arranged in the middle of the two chamfers, two connecting shafts are arranged in the two grooves, two positioning blocks are inserted in the two grooves, and the tops of the two positioning blocks are sleeved on the two connecting shafts. The two extension plates are rotated around the axes of the two connecting shafts to flip the two extension plates to the opposite sides and flip to the sides of the flip plate. The two extension plates and the flip plate are spliced ​​together, so that the usable area for storing low-temperature goods can be further increased, which is convenient for temporary storage of longer low-temperature goods.

[0010] As a preferred technical solution of the present invention, the limiting mechanism includes a telescopic rod inserted on the outer frame, a locking plate is fixed on the top of the telescopic rod, a cross-shaped locking hole is opened at one end of the extension plate, and the end of the locking plate away from the telescopic rod is inserted in the locking hole. Through the cooperation of the locking plate and the locking hole, the extension plate is limited so that the extension plate can fit tightly above the flip plate, which can prevent the extension plate from jumping up and down and damaging the extension plate when encountering a bumpy road surface.

[0011] As a preferred technical solution of the present invention, a baffle is fixed at the bottom of the telescopic rod, a spring is arranged between the baffle and the outer frame, and the free end of the spring is fixed to one side of the baffle. The baffle is moved by pulling the telescopic rod, so that the baffle pulls the spring to deform, and the telescopic rod drives the lock plate to move, so that the lock plate moves to the outside of the lock hole, and the extension plate is rotated to change the extension plate from a horizontal state to a vertical state, so that the extension plate is perpendicular to the flip plate, and the extension plate and the flip plate are spliced ​​to form a U shape, so that the low-temperature goods can be limited to prevent the low-temperature goods from slipping when temporarily stored on the flip plate, causing damage to the low-temperature goods.

[0012] As a preferred technical solution of the present invention, the adjusting mechanism includes a motor fixed on a fixed plate, a worm is fixed on the output shaft of the motor, two adjusting shafts are symmetrically fixed on both sides of the outer frame, one end of the adjusting shaft away from the outer frame passes through the fixed plate and is fixed with a worm wheel meshing with the worm, the output shaft of the motor drives the worm to rotate, so that the worm drives the worm wheel meshing with it to rotate, so that the worm wheel drives the adjusting shaft to rotate, and the adjusting shaft drives the outer frame to rotate, thereby adjusting the angle of the outer frame, so that the outer frame changes from a horizontal state to an inclined state, so that it is convenient to unload the low-temperature goods inside the low-temperature carriage body.

[0013] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. Through the coordination of structures such as the fixing plate, the turning device, the storage device and the transmission mechanism, the low-temperature goods are placed on the temporary storage device and then inspected. After the inspection, the low-temperature goods are pushed back into the interior of the low-temperature carriage. Workers do not need to bend over and raise their hands many times, which reduces the physical exertion during loading and unloading and facilitates the inspection of low-temperature items by the staff.

[0014] 2. Pull the flip plate upward to flip it to the side of the top plate, so that the flip plate and the top plate are on the same horizontal plane, and the flip plate and the top plate are spliced, thereby increasing the storage area for temporary storage of low-temperature goods and facilitating the storage of longer goods.

[0015] 3. Push the extension plate upward to rotate it around the axis of the connecting shaft, so that the extension plate changes from a horizontal state to a vertical state, and the extension plate and the flip plate are spliced ​​to form a U shape. The extension plate is used to shield both sides of the low-temperature goods, which can not only prevent debris from falling into the interior of the low-temperature goods, but also block sunlight to prevent direct sunlight from shining on the low-temperature goods during inspection, causing the temperature of the low-temperature goods to rise rapidly, affecting the quality of the low-temperature goods and the inspection results.

[0016] 4. The rotating shaft of the motor drives the worm to rotate, which drives the worm wheel to rotate, which drives the adjusting shaft to rotate, which drives the outer frame to rotate, which drives the top plate to rotate, which drives the flip plate to rotate, so that the flip plate and the top plate change from a horizontal state to an inclined state, thereby facilitating the unloading of low-temperature goods inside the low-temperature carriage body and improving the convenience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the temporary storage device of the present invention; Figure 3 It is a structural schematic diagram of the storage device of the present invention; Figure 4It is a structural schematic diagram of the flip plate of the present invention; Figure 5 It is a structural schematic diagram of the outer frame of the present invention; Figure 6 It is a structural schematic diagram of the top plate of the present invention; Figure 7 It is a structural schematic diagram of the extension plate of the present invention; Figure 8 It is a structural schematic diagram of the lock plate of the present invention; Fig. 9 It is a structural schematic diagram of the adjusting shaft of the present invention; Fig.10 It is a structural schematic diagram of the fixing plate of the present invention; Fig.11 For the present invention Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] Among them: 1. Low-temperature carriage body; 2. Traction part; 3. Box door; 4. Temporary storage device; 5. Storage device; 401. Fixed plate; 402. Extension plate; 403. Flip plate; 404. Hinge; 405. Positioning block; 406. Adjustment shaft; 407. Lock plate; 408. Lock hole; 409. Telescopic rod; 410. Spring; 411. Baffle; 412. Motor; 413. Worm; 414. Worm wheel; 501. Outer frame; 502. Storage cavity; 503. Top plate; 504. Insert plate; 505. First operating lever; 506. Second operating lever; 507. Baffle rod. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0020] Embodiment: The present invention provides as Figure 1 A low-temperature logistics carriage based on cold chain transportation is shown, comprising: A low-temperature carriage body 1 is provided with a traction part 2 connected to the front of the vehicle at one end of the low-temperature carriage body 1, and an openable and closable box door 3 is provided at the end of the low-temperature carriage body 1 away from the traction part 2. A storage cavity for storing low-temperature goods is also provided in the middle of the low-temperature carriage body 1.

[0021] As can be seen from the above, when in use, the door 3 is opened, and the low-temperature goods to be transported are placed into the storage cavity of the low-temperature compartment body 1, and then the low-temperature compartment body 1 is connected to the front of the car, and the low-temperature compartment body 1 is driven by the front of the car for transportation.

[0022] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, a temporary storage device 4 for temporarily storing low-temperature goods is provided at the bottom of the low-temperature compartment body 1, and a receiving device 5 for driving the temporary storage device 4 to flip and move is provided below the temporary storage device 4, and the temporary storage device 4 is arranged below the compartment door 3, and the temporary storage device 4 is driven to move by the receiving device 5, so that after the temporary storage device 4 is moved to the side of the traction part 2, the temporary storage device 4 is used to store the low-temperature goods, so that people can check the low-temperature goods outside the compartment easily; The temporary storage device 4 includes two fixed plates 401 fixed to the bottom of the low-temperature compartment body 1 and two extension plates 402 arranged on the storage device 5. The bottom of the two extension plates 402 is provided with a flipping mechanism for facilitating the movement of the extension plates 402. The flipping mechanism is arranged above the storage device 5. The two fixed plates 401 are symmetrically installed on both sides of the storage device 5, and an adjustment mechanism is also arranged between one of the fixed plates 401 and the storage device 5. The flipping mechanism drives the two extension plates 402 to flip, so that the extension plates 402 are flipped to the oblique upper side of the storage device 5, thereby increasing the storage area for low-temperature products and facilitating the storage of more low-temperature goods. The storage device 5 includes an outer frame 501 fixed at the bottom of two fixed plates 401. The middle part of the outer frame 501 is recessed inward to form a storage cavity 502. An extension mechanism is arranged inside the storage cavity 502 to drive the temporary storage device 4 to move. A limiting mechanism is also arranged between the extension mechanism and the two extension plates 402 to limit the extension plates 402. The limiting mechanism is used to limit the flipping angle of the extension plates 402, so that the extension plates 402 can be perpendicular to the storage device 5 or flipped to the two sides of the storage device 5.

[0023] The extension mechanism includes a top plate 503 arranged on the outer frame 501, and two plug plates 504 are symmetrically fixed to the bottom of the top plate 503. The two plug plates 504 are inserted into the interior of the storage cavity 502, and two transmission mechanisms are arranged between the plug plates 504 and the outer frame 501, and a blocking rod 507 is arranged between the two transmission mechanisms. The end of the hinge 404 away from the flip plate 403 is fixed to the side of the top plate 503, and the two transmission mechanisms are driven to move by the blocking rod 507, so that the two transmission mechanisms move to the outside of the top plate 503, and the two transmission mechanisms drive the top plate 503 to move to the side of the outer frame 501. A stretchable pull plate is also arranged on the side of the top plate 503, and a sliding rod is fixed on the pull plate. A limit plate is arranged at the end of the sliding rod away from the pull plate, and a card slot matched with the pull plate is opened on the top plate 503, and an annular groove matched with the limit plate is arranged inside the card slot. One end of the annular groove A through hole matched with the slide bar is provided, the annular groove is connected with the card slot through the through hole, and a finger groove is provided on the side of the card slot away from the through hole, by inserting the finger into the finger groove and pulling the pull plate, the pull plate drives the slide bar to move, and the slide bar drives the limit plate to move, and after the pull plate moves to the outside of the card slot, the slide bar drives the limit plate to move along the inside of the annular groove, and after the limit plate moves to the side close to the through hole, the limit plate drives the top plate 503 to move, and the top plate 503 drives the two transmission mechanisms to move, and when the pull plate moves to the outside of the card slot, the pulling of the pull plate is stopped, and when the flip plate 403 flips to the side of the outer frame 501, the flip plate 403 is supported by the pull plate and the slide bar, thereby not only ensuring that the flip plate 403 and the top plate 503 remain level, but also increasing the supporting force of the flip plate 403 to prevent the flip plate 403 from collapsing and causing low-temperature goods to fall and be damaged.

[0024] The transmission mechanism includes a first operating rod 505 and a second operating rod 506 fixed thereto, one end of the first operating rod 505 is rotatably connected to the plug plate 504, the end of the first operating rod 505 away from the plug plate 504 is rotatably connected to the inner wall of the storage chamber 502, one end of the second operating rod 506 is rotatably connected to the middle part of the plug plate 504, and the end of the second operating rod 506 away from the plug plate 504 is rotatably connected to the outer frame 501, the second operating rod 506 is arranged in an L shape, and the two ends of the blocking rod 507 are rotatably installed at the inflection points of the two second operating rods 506. By pulling the top plate 503, the top plate 503 drives the first operating rod 505 and the second operating rod 506 to move, so that the top plate 503 moves obliquely upward, and the top plate 503 moves to the side of the outer frame 501. The storage chamber 502 is arranged below the low-temperature compartment body 1, and the storage chamber 502 is convenient for people to step on, so that they can quickly climb to the inside of the storage chamber.

[0025] By adopting the above technical solution: During use, when it is necessary to inspect the low-temperature goods inside the low-temperature compartment body 1, pull the top plate 503 so that the top plate 503 drives the plug plate 504 to move, and the plug plate 504 drives the first operating rod 505 and the second operating rod 506 to move, so that the first operating rod 505 and the second operating rod 506 drive the top plate 503 to move to the side of the outer frame 501, and the top plate 503 drives the temporary storage device 4 to move to the side of the box door 3. After the low-temperature goods are placed on the temporary storage device 4, the low-temperature goods are inspected, and after the inspection is completed, the low-temperature goods are pushed back into the interior of the low-temperature compartment body 1, so that the inspection can be completed without the need to carry the low-temperature goods multiple times.

[0026] Secondly, refer to Figure 3 , Figure 4 , Figure 8 and Fig. 9 As shown, the flipping mechanism includes a flipping plate 403 arranged on the extension mechanism, and two hinges 404 are fixed on the side of the flipping plate 403, and the ends of the two hinges 404 away from the flipping plate 403 are connected to the extension mechanism, and the flipping plate 403 is driven to flip by the hinges 404, so that the flipping plate 403 is moved to the side of the extension mechanism, and the flipping plate 403 and the extension mechanism are spliced, thereby increasing the usable area for storing low-temperature goods. When the flipping plate 403 is flipped to the side of the outer frame 501, the extension plate 402 is flipped downward due to the influence of gravity, so that the end of the extension plate 402 away from the positioning block 405 contacts the ground, and the flipping plate 403 is supported by the extension plate 402, thereby increasing the support area of ​​the flipping plate 403, and heavier low-temperature goods can be temporarily stored, thereby increasing the stability of the low-temperature goods during inspection.

[0027] Two positioning blocks 405 are symmetrically fixed on the top of the flip plate 403, and two arc-shaped chamfers are provided on the opposite sides of the two extension plates 402. Two grooves are provided in the middle of the two chamfers, and two connecting shafts are provided in the two grooves. The two positioning blocks 405 are inserted in the two grooves, and the tops of the two positioning blocks 405 are sleeved on the two connecting shafts. The two extension plates 402 are rotated around the axes of the two connecting shafts to flip the two extension plates 402 to the opposite sides, so that the two extension plates 402 are flipped to the side of the flip plate 403. The two extension plates 402 and the flip plate 403 are spliced, so as to further increase the storage area for low-temperature goods, which is convenient for temporary storage of longer low-temperature goods.

[0028] By adopting the above technical solution: During use, when the low-temperature cargo to be inspected is long, pull the flip plate 403 upwards to flip the flip plate 403 to the side of the top plate 503, so that the flip plate 403 and the top plate 503 are on the same horizontal plane, and the flip plate 403 and the top plate 503 are spliced, thereby increasing the storage area for temporary storage of low-temperature cargo, which is convenient for storing longer cargo.

[0029] Again, reference Figure 3 , Figure 4 , Figure 6 , Figure 7 , Fig. 9 and Fig.11 As shown, the limiting mechanism includes a telescopic rod 409 inserted on the outer frame 501, a locking plate 407 is fixed on the top of the telescopic rod 409, a cross-shaped locking hole 408 is opened at one end of the extension plate 402, and the end of the locking plate 407 away from the telescopic rod 409 is inserted in the locking hole 408. Through the cooperation of the locking plate 407 and the locking hole 408, the extension plate 402 is limited, so that the extension plate 402 can be tightly fitted on the top of the flip plate 403, which can prevent the extension plate 402 from jumping up and down when encountering a bumpy road surface and damaging the extension plate 402.

[0030] A baffle 411 is fixed to the bottom of the telescopic rod 409, and a spring 410 is arranged between the baffle 411 and the outer frame 501, and the free end of the spring 410 is fixed to one side of the baffle 411. The baffle 411 is driven to move by pulling the telescopic rod 409, so that the baffle 411 pulls the spring 410 to deform, and the telescopic rod 409 drives the lock plate 407 to move, so that the lock plate 407 moves to the outside of the lock hole 408, and the extension plate 402 is rotated to change the extension plate 402 from a horizontal state to a vertical state, so that the extension plate 402 is perpendicular to the flip plate 403, and the extension plate 402 and the flip plate 403 are spliced ​​to form a U shape, so that the low-temperature goods can be limited to prevent the low-temperature goods from slipping when temporarily stored on the flip plate 403, causing damage to the low-temperature goods.

[0031] By adopting the above technical solution: When in use, the extension plate 402 is pushed upward to rotate around the axis of the connecting shaft, so that the extension plate 402 changes from a horizontal state to a vertical state, and the extension plate 402 and the flip plate 403 are spliced ​​to form a U shape. The extension plate 402 shields both sides of the low-temperature goods, which can not only prevent debris from falling into the low-temperature goods, but also shield sunlight, so as to prevent the sunlight from directly shining on the low-temperature goods during inspection, causing the temperature of the low-temperature goods to rise rapidly, affecting the quality of the low-temperature goods and the inspection results; At the same time, the extension plate 402 can also be pushed to rotate around the axis of the connecting shaft, so that the extension plate 402 changes from a vertical state to a horizontal state, and the extension plate 402 extends to the outside of the flip plate 403, so that the extension plate 402 and the flip plate 403 are horizontally spliced ​​in one line, thereby further increasing the storage area for temporary storage of low-temperature goods, which is convenient for temporary storage of low-temperature goods with a wider width.

[0032] Finally, reference Figure 2 and Fig.10 As shown, the adjustment mechanism includes a motor 412 fixed on a fixed plate 401, a worm 413 is fixed on the output shaft of the motor 412, two adjustment shafts 406 are symmetrically fixed on both sides of the outer frame 501, one end of one adjustment shaft 406 away from the outer frame 501 passes through the fixed plate 401 and is fixed with a worm wheel 414 meshing with the worm 413, the output shaft of the motor 412 drives the worm 413 to rotate, so that the worm 413 drives the worm wheel 414 meshing with it to rotate, so that the worm wheel 414 drives the adjustment shaft 406 to rotate, and the adjustment shaft 406 drives the outer frame 501 to rotate, so as to adjust the angle of the outer frame 501, so that the outer frame 501 changes from a horizontal state to an inclined state, so that it is convenient to unload the low-temperature goods inside the low-temperature compartment body 1.

[0033] By adopting the above technical solution: When in use, the rotating shaft of the motor 412 drives the worm 413 to rotate, so that the worm 413 drives the worm wheel 414 to rotate, so that the worm wheel 414 drives the adjusting shaft 406 to rotate, so that the adjusting shaft 406 drives the outer frame 501 to rotate, so that the outer frame 501 drives the top plate 503 to rotate, so that the top plate 503 drives the flip plate 403 to rotate, so that the flip plate 403 and the top plate 503 change from a horizontal state to an inclined state, thereby facilitating the unloading of low-temperature goods inside the low-temperature carriage body 1 and improving the convenience of the device.

[0034] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A low-temperature logistics carriage based on cold chain transportation, characterized in that: include: A low-temperature carriage body (1), wherein one end of the low-temperature carriage body (1) is provided with a traction portion (2) connected to the front of the carriage, and an end of the low-temperature carriage body (1) away from the traction portion (2) is provided with a box door (3), and a storage cavity for storing low-temperature goods is also provided in the middle of the low-temperature carriage body (1); The bottom of the low-temperature carriage body (1) is provided with a temporary storage device (4) for temporarily storing low-temperature goods, and a storage device (5) for driving the temporary storage device (4) to flip and move is provided below the temporary storage device (4), and the temporary storage device (4) is provided below the traction part (2); The temporary storage device (4) comprises two fixed plates (401) fixed to the bottom of the low-temperature compartment body (1) and two extension plates (402) arranged on the storage device (5); a turning mechanism for facilitating the movement of the extension plates (402) is arranged at the bottom of the two extension plates (402); the turning mechanism is arranged above the storage device (5); the two fixed plates (401) are symmetrically mounted on both sides of the storage device (5); and an adjustment mechanism is also arranged between one of the fixed plates (401) and the storage device (5); The storage device (5) comprises an outer frame (501) fixed to the bottom of two fixed plates (401); the middle of the outer frame (501) is recessed inwards to form a storage cavity (502); an extension mechanism for driving the temporary storage device (4) to move is arranged inside the storage cavity (502); and a limiting mechanism for limiting the position of the extension plates (402) is also arranged between the extension mechanism and the two extension plates (402).

2. A low-temperature logistics carriage based on cold chain transportation according to claim 1, characterized in that: The extension mechanism comprises a top plate (503) arranged on the outer frame (501), two plug plates (504) are symmetrically fixed to the bottom of the top plate (503), the two plug plates (504) are inserted into the interior of the storage cavity (502), and two transmission mechanisms are arranged between the plug plates (504) and the outer frame (501), a blocking rod (507) is arranged between the two transmission mechanisms, an end of the hinge (404) away from the flip plate (403) is fixed to the side of the top plate (503), and a stretchable pull plate is also arranged on the side of the top plate (503).

3. A low-temperature logistics carriage based on cold chain transportation according to claim 2, characterized in that: The transmission mechanism comprises a first operating rod (505) and a second operating rod (506) fixed thereto; one end of the first operating rod (505) is rotatably connected to the plug plate (504); one end of the first operating rod (505) away from the plug plate (504) is rotatably connected to the inner wall of the storage chamber (502); one end of the second operating rod (506) is rotatably connected to the middle part of the plug plate (504); and one end of the second operating rod (506) away from the plug plate (504) is rotatably connected to the outer frame (501); the second operating rod (506) is arranged in an L shape; and two ends of the blocking rod (507) are rotatably mounted at the inflection points of the two second operating rods (506).

4. A low-temperature logistics carriage based on cold chain transportation according to claim 1, characterized in that: The turning mechanism comprises a turning plate (403) arranged on the extension mechanism, two hinges (404) are fixed on the side of the turning plate (403), and one end of the two hinges (404) away from the turning plate (403) is connected to the extension mechanism.

5. A low-temperature logistics carriage based on cold chain transportation according to claim 4, characterized in that: Two positioning blocks (405) are symmetrically fixed on the top of the flip plate (403); two arc-shaped chamfers are arranged on opposite sides of the two extension plates (402); two grooves are arranged in the middle of the two chamfers; two connecting shafts are arranged in the two grooves; the two positioning blocks (405) are inserted in the two grooves; and the tops of the two positioning blocks (405) are sleeved on the two connecting shafts.

6. A low-temperature logistics carriage based on cold chain transportation according to claim 1, characterized in that: The limiting mechanism comprises a telescopic rod (409) inserted on the outer frame (501), a locking plate (407) is fixed on the top of the telescopic rod (409), a cross-shaped locking hole (408) is formed at one end of the extension plate (402), and an end of the locking plate (407) away from the telescopic rod (409) is inserted into the locking hole (408).

7. A low-temperature logistics carriage based on cold chain transportation according to claim 6, characterized in that: A baffle (411) is fixed to the bottom of the telescopic rod (409), a spring (410) is provided between the baffle (411) and the outer frame (501), and a free end of the spring (410) is fixed to one side of the baffle (411).

8. A low-temperature logistics carriage based on cold chain transportation according to claim 1, characterized in that: The adjustment mechanism comprises a motor (412) fixed on a fixed plate (401), a worm (413) being fixed on an output shaft of the motor (412), two adjustment shafts (406) being symmetrically fixed on two sides of the outer frame (501), one end of one of the adjustment shafts (406) away from the outer frame (501) passing through the fixed plate (401) and being fixed with a worm wheel (414) meshing with the worm (413).

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