Automatic loading and unloading device for road cargo transportation

Abstract

The invention relates to the field of cargo loading and unloading equipment, in particular to an automatic loading and unloading device for road cargo transportation, which comprises a telescopic part, the telescopic part is connected to a cart, symmetrically arranged fixing blocks are arranged at the telescopic end of the telescopic part, a plurality of clamping holes are formed in one side of the telescopic part, and a motor is fixedly connected to the telescopic part. The winding wheel is fixedly connected to the output end of the motor, the fixing plate is fixedly connected to the inner side of the top of the telescopic part and rotationally connected with the winding wheel, the pull rope is wound on the winding wheel, and one end of the pull rope is fixedly connected to the winding wheel. By arranging the screw rod and the threaded sleeve, the device adapts to pottery pots of different sizes, when the pottery pots are moved, loaded and unloaded, stabilizing pieces can limit the pottery pots, and stabilizing clamps can clamp the threaded sleeve, so that the pottery pots can be stabilized, and the situation that the pottery pots shake and are damaged in the moving and unloading process is avoided; and the screw rods and the fixing blocks drive the pottery pots to move so as to load and unload the pottery pots.

Description

Technical Field

[0001] The present invention relates to the field of cargo loading and unloading equipment, and in particular to an automatic loading and unloading device for road cargo transportation. Background Art

[0002] In road freight transportation, loading and unloading of goods is the most labor-intensive, especially the loading and unloading of large goods. Ceramic jars used to store wine are difficult to carry and load due to their heavy weight, large size and fragility, so automatic loading and unloading equipment is required.

[0003] When unloading the pottery jar, the staff needs to hang the rope with the wooden stick on the hook of the crane, then put the wooden stick into the pottery jar, and fix the wooden stick horizontally in the pottery jar, then use the crane to drive the pottery jar to move slowly downward so that the pottery jar is close to the ground, and then use the crane to move the pottery jar and place it to the unloading position, and finally take the wooden stick out of the pottery jar. When the pottery jar needs to be loaded, it is also necessary to first fix the wooden stick into the pottery jar, and then use the crane to drive the pottery jar to move upward, place the pottery jar on the loading vehicle, and then take the wooden stick out of the pottery jar. After the pottery jar is loaded onto the vehicle, it can be transported by road by the loading vehicle. However, in the process of moving and loading and unloading the pottery jar driven by the crane and the rope, the pottery jar is prone to shaking and touching obstacles, causing bumps and damage. Therefore, it is necessary to design an automatic loading and unloading device for road cargo transportation, which can stabilize the pottery jar during loading and unloading and transportation of the pottery jar. Summary of the invention

[0004] The present invention provides an automatic loading and unloading device for road cargo transportation, which can stabilize pottery jars during loading, unloading and transportation of pottery jars, so as to overcome the disadvantage that the pottery jars are easily shaken and touch obstacles during transportation and loading and unloading, resulting in bumps and damages.

[0005] The technical solution is as follows: an automatic loading and unloading device for road cargo transportation, comprising a telescopic part, the telescopic part is connected to a cart, the telescopic end of the telescopic part is provided with a symmetrically arranged fixed block, a plurality of clamping holes are opened on one side of the telescopic part, the motor is fixedly connected to the telescopic part, the winding wheel is fixedly connected to the output end of the motor, the fixed plate is fixedly connected to the inner side of the top of the telescopic part, the fixed plate is rotatably connected to the winding wheel, the pull rope is wound around the winding wheel, one end of the pull rope is fixedly connected to the winding wheel, and also includes a pin, the pin is inserted into the clamping hole of the telescopic part, and the height of the telescopic part can be adjusted by inserting the pin into different clamping holes on the front side of the telescopic part, the vertically symmetrically arranged center wheel is rotatably connected between the symmetrically arranged fixed blocks, the pull rope passes through the gap between the vertically symmetrically arranged center wheels, the locking assembly is fixedly connected to the other end of the pull rope, the locking assembly is used to lock the pottery pot, and the pottery pot is loaded and unloaded by winding and lowering the pull rope.

[0006] Furthermore, the locking assembly includes a threaded sleeve, which is fixedly connected to the other end of the pull rope, and laterally symmetrically arranged screws are threadedly connected to both sides of the threaded sleeve, and the screws are engaged with the pottery pot.

[0007] Furthermore, a counterweight block is included, which is fixedly connected to the cart. The counterweight block is used to increase the gravity of the cart to prevent the pottery pot from being too heavy and causing the cart to tip over.

[0008] Furthermore, it also includes a stabilizing mechanism for stabilizing the pottery pot, the stabilizing mechanism includes a first guide rail, the symmetrically arranged first guide rail is fixedly connected to the inner side of the fixed block, the stabilizing clamp is slidably connected to the first guide rail, the inner side of the stabilizing clamp is an arc groove, the stabilizing clamp is clamped and matched with the threaded sleeve, the tension spring is wound on the first guide rail, one end of the tension spring is fixedly connected to the stabilizing clamp, the other end of the tension spring is fixedly connected to the fixed block, the stabilizing clamp is extruded and matched with the threaded sleeve, the connecting piece is fixedly connected to the symmetrically arranged fixed block, the stabilizing piece is fixedly connected to one end of the connecting piece away from the fixed block, the stabilizing piece is a semicircular arc structure, the stabilizing piece is extruded and matched with the pottery pot, the pressing down component is fixedly connected to the telescopic piece near the center wheel, the pressing down component is extruded and matched with the stabilizing clamp, and the pressing down component is used to squeeze the stabilizing clamp.

[0009] Furthermore, the pressing assembly includes a second guide rail, which is fixedly connected to the telescopic member near the center wheel, and the releasing member is slidably connected to one end of the second guide rail near the stabilizing clamp. An inclined surface is provided at the bottom of the releasing member, and the inclined surface at the bottom of the releasing member is squeezed and matched with the stabilizing clamp. The compression spring is wound on the second guide rail, one end of the compression spring is fixedly connected to the telescopic member, and the other end of the compression spring is fixedly connected to the releasing member.

[0010] Furthermore, it also includes a supporting mechanism for assisting the screw to support the pottery pot, the supporting mechanism includes a rotating member, the rotating member symmetrically arranged along the threaded sleeve is rotatably connected to the outside of the screw, a first gear is fixedly connected to the middle of the top of the rotating member, a third guide rail is fixedly connected to the rotating member, an extrusion member is slidably connected to the third guide rail, a first rack is fixedly connected to the bottom of the extrusion member, the first rack and the first gear are meshed with each other, a storage spring is wound on the third guide rail, one end of the storage spring is fixedly connected to the third guide rail, and the other end of the storage spring is fixedly connected to the extrusion member.

[0011] Furthermore, a rubber pad is included, which is fixedly connected to the outside of the rotating part and is extrusion-fitted with the pottery pot.

[0012] Furthermore, it also includes an electric push rod, which is fixedly connected to the telescopic member near one of the fixed blocks, the fixed member is fixedly connected to the telescopic end of the electric push rod, the airbag is fixedly connected to the bottom of the fixed member, the air pump is fixedly connected to the side of the fixed member away from the stabilizing clamp, the air duct is connected between the air pump and the airbag, the air duct connects the air pump and the airbag, and the second gear and the second rack are meshed with each other.

[0013] Furthermore, the driving assembly includes a second rack fixedly connected to one side of the fixing member, a second gear rotatably connected to one side of the fixing block close to the electric push rod, a third rack fixedly connected to one side of the releasing member close to the second rack, and the third rack is meshed with the second gear.

[0014] Furthermore, a plurality of wheels are fixedly connected to the bottom of the cart, and the wheels allow the cart to move freely, thereby driving the pottery jar to move.

[0015] The beneficial effects of the present invention are:

[0016] 1. The present invention provides a screw and a threaded sleeve so that the device can adapt to pottery pots of different sizes. When the pottery pot is moved and loaded and unloaded, the stabilizing member will restrict the pottery pot, and the stabilizing clamp will lock the threaded sleeve. In this way, the pottery pot can be stabilized to prevent the pottery pot from shaking and being damaged during the movement and unloading process. The pottery pot can be moved by the screw and the fixed block to realize the loading and unloading of the pottery pot.

[0017] 2. The present invention squeezes the extrusion member through the inside of the pottery pot, and the first rack moves downward, driving the first gear to rotate. The rotation of the first gear will drive the rotating member to rotate, thereby driving the rubber pad to rotate toward the inner wall of the pottery pot, so that the rubber pad is tightly attached to the inside of the pottery pot, so that the rubber pad can lock the pottery pot, preventing the screw from being stuck out of the pottery pot and causing damage to the pottery pot.

[0018] 3. The present invention drives the fixing part to move by the electric push rod, thereby driving the second rack to move. The movement of the second rack will drive the second gear to rotate. The second gear will drive the third rack to move downward, thereby driving the release part to move downward, thereby realizing the automatic downward pressure of the release part. An air pump is provided to inflate the airbag so that the airbag expands. The expansion of the airbag will cushion the falling pottery pot, making the falling of the pottery pot safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 It is a sectional view of the three-dimensional structure of the motor, winding wheel, pull rope and other components of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the compression spring, centering wheel, stabilizing member and other components of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the compression spring, the release member and the stabilizing member of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the rubber pad, extrusion piece, force storage spring and other components of the present invention.

[0025] Figure 7 It is a sectional view of the three-dimensional structure of the extrusion part, the rotating part, the rubber pad and other components of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the airbag, fixing member, air pump and other components of the present invention.

[0027] Fig. 9 It is a sectional view of the three-dimensional structure of the electric push rod, fixing part, airbag and other components of the present invention.

[0028] Explanation of the accompanying drawings: 1_trolley, 11_counterweight, 12_telescopic member, 13_latch, 14_motor, 15_winding wheel, 16_pull rope, 17_fixing plate, 18_center wheel, 19_threaded sleeve, 110_screw, 111-fixing block, 2_stabilizing member, 21_connecting member, 22_stabilizing clip, 23_first guide rail, 24_tension spring, 25_liberation member, 26_second guide rail, 27_compression spring, 3_extrusion member, 31_third guide rail, 32_force storage spring, 33_first rack, 34_first gear, 35_rotating member, 36_rubber pad, 4_electric push rod, 41_fixing member, 42_air pump, 43_air guide tube, 44_air bag, 45_second rack, 46_second gear, 47_third rack. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] Embodiment 1: An automatic loading and unloading device for road freight transportation, such as Figure 1-Figure 3As shown, it includes a cart 1, a counterweight 11, a telescopic member 12, a latch 13, a motor 14, a winding wheel 15, a pull rope 16, a fixing plate 17, a center wheel 18, a threaded sleeve 19, a screw 110 and a fixing block 111. The counterweight 11 is fixedly connected to the top of the cart 1. The counterweight 11 is used to increase the gravity of the cart 1 to prevent the pottery pot from being too heavy and causing the cart 1 to tip over. The telescopic member 12 is connected to the cart 1. The telescopic member 12 is located on the left side of the counterweight 11. The lower right side of the telescopic member 12 is fixedly connected to a fixing block 111 that is symmetrically arranged front and back. Five clamping holes are opened on the front side of the telescopic member 12. The latch 13 is inserted into the clamping holes of the telescopic member 12. The telescopic member 12 can be adjusted by inserting the latch 13 into different clamping holes on the front side of the telescopic member 12. The height of the telescopic member 12 is arranged, the motor 14 is fixedly connected to the inner side of the rear part of the telescopic member 12, the winding wheel 15 is fixedly connected to the output end of the motor 14, the fixing plate 17 is fixedly connected to the inner side of the top of the telescopic member 12, the fixing plate 17 is rotatably connected to the winding wheel 15, the pull rope 16 is wound around the winding wheel 15, one end of the pull rope 16 is fixedly connected to the winding wheel 15, two symmetrically arranged center wheels 18 are rotatably connected between the fixed blocks 111, the center wheel 18 is used to center the pull rope 16, the pull rope 16 passes through the gap between the two symmetrically arranged center wheels 18, the other end of the pull rope 16 is fixedly connected with a threaded sleeve 19, the screw 110 is respectively threadedly connected to the two sides of the threaded sleeve 19, and the screw 110 is snap-fitted with the pottery pot.

[0031] like Figure 4 and Figure 5As shown, it also includes a stabilizing mechanism for stabilizing the pottery pot, the stabilizing mechanism includes a stabilizing member 2, a connecting member 21, a stabilizing clip 22, a first guide rail 23, a tension spring 24, a releasing member 25, a second guide rail 26 and a compression spring 27, the first guide rails 23 are respectively fixedly connected to the inner side of the fixing block 111, the stabilizing clips 22 are respectively slidably connected to the first guide rails 23, the inner side of the stabilizing clips 22 is an arc groove, the tension springs 24 are respectively wound on the first guide rails 23, one end of the tension spring 24 is fixedly connected to the stabilizing clip 22, the other end of the tension spring 24 is fixedly connected to the fixing block 111, the stabilizing clip 22 is snap-fitted with the threaded sleeve 19, the connecting member 21 is respectively fixedly connected to the fixing block 111, and the One connecting member 21 is connected to the right side of the rear fixed block 111, and the other connecting member 21 is connected to the left side of the front fixed block 111. The stabilizing member 2 is fixedly connected to the end of the connecting member 21 away from the fixed block 111. The stabilizing member 2 is a semicircular arc structure, and the stabilizing member 2 is squeezed and matched with the pottery pot. The second guide rail 26 is fixedly connected to the lower right side of the telescopic member 12. The release member 25 is slidably connected to the lower end of the second guide rail 26. Two inclined surfaces are arranged below the release member 25. The inclined surface below the release member 25 is squeezed and matched with the stabilizing clip 22. The compression spring 27 is wound on the second guide rail 26, and one end of the compression spring 27 is fixedly connected to the telescopic member 12, and the other end of the compression spring 27 is fixedly connected to the release member 25.

[0032] When making liquor, it is necessary to use pottery jars to store the liquor. The required pottery jars need to be transported from the pottery jar factory to the winery. First, the pottery jars need to be loaded from the pottery jar factory onto a vehicle, transported by the vehicle, and then unloaded from the vehicle. When transporting and loading and unloading the pottery jars, it is necessary to fix a wooden stick with a pull rope 16 into the pottery jar, and use a crane to drive the wooden stick and the pottery jar to move, so as to realize the transportation and loading and unloading of the pottery jar. However, in this process, the pottery jar may shake due to uneven road conditions, and the shaking of the pottery jar may easily touch obstacles, causing damage to the pottery jar. When the pottery jar needs to be loaded, the telescopic end of the telescopic member 12 must be moved according to the height of the position where the pottery jar needs to be placed, so that the height of the telescopic member 12 is adapted to the height of the position where the pottery jar needs to be placed, and then the telescopic end of the telescopic member 12 is moved. After the retractable member 12 moves to a suitable height, the latch 13 is inserted into the corresponding card hole on the retractable member 12. Then, the staff needs to rotate the screws 110 on both sides of the threaded sleeve 19 inward or outward according to the size of the pottery pot, so that the length of the two screws 110 is greater than the diameter of the pottery pot mouth, and then vertically insert the screws 110 into the pottery pot, and laterally clamp the screws 110 in the pottery pot, and then control the motor 14 to drive the winding wheel 15 to rotate. The winding wheel 15 rotates to wind the pull rope 16 around the winding wheel 15. The pull rope 16 will pull the threaded sleeve 19 and the screw 110 to move upward, and the screw 110 will drive the pottery pot to move upward. In the process of the pottery pot moving upward, the outer wall of the pottery pot will gradually contact the stabilizing member 2. Because the stabilizing member 2 is a semicircular arc structure, the stabilizing member 2 is stable. Part 2 will restrict the pottery pot, and the stabilizing clip 22 will also enter the pottery pot from the ceramic mouth, and the threaded sleeve 19 will contact and squeeze the stabilizing clip 22. Under the squeezing action of the threaded sleeve 19, the threaded sleeve 19 moves upward and is clamped into the arc groove of the stabilizing clip 22. At this time, the tension spring 24 contracts. After the threaded sleeve 19 is clamped, the screw 110 will also remain stable, so that the pottery pot remains stable. After the pottery pot moves upward, the mobile cart 1 then drives the pottery pot to move to the loading cart. At this time, the staff can press down the release part 25. During the downward movement of the release part 25, the compression spring 27 will extend, and the inclined surface below the release part 25 will contact and squeeze the stabilizing clip 22. Under the squeezing action of the inclined surface of the release part 25, the stabilizing clip 22 will move outward, and the tension spring 24 will be stretched. The stabilizing clamp 22 will no longer lock the threaded sleeve 19, and then the motor 14 will drive the winding wheel 15 to rotate in the opposite direction to the previous direction, and the pull rope 16 will be pulled out from the winding wheel 15. Under the action of the gravity of the pottery pot, the pull rope 16 will move downward, and the downward movement of the pull rope 16 will drive the threaded sleeve 19 and the screw 110 to move downward as well, so the pottery pot will also move downward, and the staff can stop pressing the release piece 25, and the compression spring 27 will shrink, and the contraction of the compression spring 27 will drive the release piece 25 to move upward and reset, and the release piece 25 will move upward and reset and no longer squeeze the stabilizing clamp 22, and the compressed tension spring 24 will stretch, and the stretching of the tension spring 24 will drive the stabilizing clamp 22 to move inward and reset, and the downward movement of the pottery pot will gradually move away from the stabilizing piece 2,The stabilizer 2 no longer restricts the pottery pot, and the pottery pot will eventually be placed on the transfer vehicle. After putting down the pottery pot, the staff needs to take out the screw 110 vertically from the pottery pot, repeat the above operation, and continue to load and transport other pottery pots. Because the pottery pot is large and fragile, during the loading and unloading process of the pottery pot, it is necessary to control the motor 14 to drive the winding wheel 15 to rotate slowly, so that the pull rope 16 drives the pottery pot to rise and fall slowly. In this way, the pottery pot can be transported and loaded and unloaded over a short distance, and can adapt to pottery pots of different sizes. It can also avoid the pottery pot from shaking greatly due to the influence of the external environment during the movement and loading and unloading of the pottery pot, and hitting obstacles and breaking.

[0033] Embodiment 2: Based on embodiment 1, Figure 6 and Figure 7 As shown, it also includes a supporting mechanism for assisting the screw 110 in supporting the pottery pot, the supporting mechanism includes an extrusion member 3, a third guide rail 31, a force storage spring 32, a first rack 33, a first gear 34, a rotating member 35 and a rubber pad 36, the rotating member 35 is rotatably connected to the outside of the screw 110, the rubber pad 36 is fixedly connected to the outside of the rotating member 35, the rubber pad 36 is extruded and matched with the pottery pot, the first gear 34 is fixedly connected to the middle position of the top of the rotating member 35, the third guide rails 31 are fixedly connected above the rotating member 35, the extrusion members 3 are slidably connected to the third guide rails 31, the lower part of the extrusion members 3 are fixedly connected to the first rack 33, the first rack 33 and the first gear 34 are meshed with each other, the force storage spring 32 is wound on the third guide rail 31, one end of the force storage spring 32 is fixedly connected to the third guide rail 31, and the other end of the force storage spring 32 is fixedly connected to the extrusion member 3.

[0034] As mentioned above, the pottery pot is fixed by the screw 110. When the pottery pot is lifted and moved, the friction between the screw 110 and the inside of the pottery pot is not large enough because the two ends of the screw 110 are rings. This can easily cause the screw 110 to slide inside the pottery pot when the screw 110 drives the pottery pot to move, causing the pottery pot to shake. It is also easy for the screw 110 to get stuck in the ceramic, causing the pottery pot to break and the staff to be injured. Therefore, a supporting mechanism is provided. After the staff adjusts the length of the screw 110, the screw 110 is placed vertically in the pottery pot, and then the screw 110 is The screw rod 110 is fixed in the pottery jar laterally by pulling the pull rope 16. When the pull rope 16 is pulled, the extrusion member 3 will first contact the inner wall of the pottery jar, and the inner wall of the pottery jar will squeeze the extrusion member 3 obliquely downward, and the extrusion member 3 will move downward. At this time, the force storage spring 32 will be compressed, and the downward movement of the extrusion member 3 will drive the first rack 33 to move downward as well. Because the first rack 33 is meshed with the first gear 34, the first rack 33 will drive the first gear 34 to rotate, and the rotation of the first gear 34 will drive the rotating member 35 to rotate in the direction close to the inner wall of the pottery jar. The rotation of the rotating member 35 will drive the rubber pad 36 to rotate, and the rotation of the rubber pad 36 will contact the inner wall of the pottery pot and be connected with the pottery pot. After the pottery pot is fixed, the motor 14 can be controlled to lift and move the pottery pot. When the pottery pot is placed in the unloading position, the pull rope 16 is in a relaxed state, and the screw rod 110 will be separated from the inner wall of the pottery pot due to its own gravity. The screw rod 110 is no longer connected to the pottery pot, and the pottery pot no longer squeezes the extrusion member 3. At this time, the storage spring 32 is converted from a telescopic state to an elongated state. The elongation of the storage spring 32 will drive the extrusion member 3 to move upward, and the extrusion member 3 is squeezed. The pressing piece 3 will drive the first rack 33 to move upward. Because the first rack 33 and the first gear 34 are meshed, the first rack 33 will drive the first gear 34 to rotate in the opposite direction to the previous direction. The rotation of the first gear 34 will drive the rotating piece 35 and the rubber pad 36 to rotate and reset in the direction away from the inner wall of the pottery pot. The staff can then take out the screw 110 and put it into the pottery pot that needs to be loaded and unloaded. This can prevent the screw 110 from sliding in the pottery pot and causing the pottery pot to shake, and can clamp the pottery pot to prevent the screw 110 from getting off the pottery pot and causing damage to the pottery pot.

[0035] like Figure 8 and Fig. 9As shown, it also includes an electric push rod 4, a fixing member 41, an air pump 42, an air duct 43, an air bag 44, a second rack 45, a second gear 46 and a third rack 47. The electric push rod 4 is fixedly connected to a position of a fixing block 111 on the telescopic member 12 near the front side, the fixing member 41 is fixedly connected to the telescopic end of the electric push rod 4, the second rack 45 is fixedly connected to the right side of the fixing member 41, the air bag 44 is fixedly connected to the lower end of the fixing member 41, the air pump 42 is fixedly connected to the front side of the fixing member 41, the air pump 42 is used to inflate the air bag 44, the air duct 43 is connected between the air pump 42 and the air bag 44, the air duct 43 connects the air pump 42 with the air bag 44, the second gear 46 is rotatably connected to the right side of the fixing block 111 on the front side, the second gear 46 and the second rack 45 are meshed with each other, the third rack 47 is fixedly connected to the front side of the release member 25, and the third rack 47 and the second gear 46 are meshed with each other.

[0036] When unloading the pottery pots, because the pottery pots are large and fragile, a buffer mechanism needs to be set at the bottom of the pottery pots to prevent the descending pottery pots from directly contacting the ground and causing damage. When unloading is required, the electric push rod 4 is controlled to make the telescopic end of the electric push rod 4 retract upward, and the telescopic end of the electric push rod 4 drives the fixing member 41 to move upward, and the fixing member 41 drives the second rack 45 to move upward. Because the second rack 45 is meshed with the second gear 46, the upward movement of the second rack 45 drives the second gear 46 to rotate, and because the third rack 47 and the second gear 46 is meshed, the rotation of the second gear 46 drives the third rack 47 to move upward, the upward movement of the third rack 47 drives the release member 25 to move downward to squeeze the stabilizing clip 22, and the stabilizing clip 22 no longer fixes the pottery pot, and at the same time, the motor 14 can be controlled to drive the winding wheel 15 to rotate, so that the pull rope 16 drives the pottery pot to move slowly downward, and then the electric push rod 4 is controlled to make the telescopic end of the electric push rod 4 move downward, and the downward movement of the telescopic end of the electric push rod 4 will drive the fixing member 41 to move downward, and the fixing member 41 will drive the airbag 44 and the air guide tube 43 downward The airbag 44 moves to the unloading position, and then the air pump 42 is controlled to supply air to the airbag 44 through the air guide tube 43. After the gas enters the airbag 44, the rolled airbag 44 expands, and the pottery pot slowly descends onto the airbag 44. The airbag 44 cushions the pottery pot. After the pottery pot is placed on the airbag 44, the screw 110 is taken out of the pottery pot. The staff can remove the pottery pot from the airbag 44, and then the air pump 42 can be controlled to extract the gas in the airbag 44 through the air guide tube 43. The airbag 44 will be in the rolled state again, and then Control the electric push rod 4 to drive the telescopic end of the electric push rod 4 to move upward. The upward movement of the telescopic end of the electric push rod 4 will drive the fixing part 41 to move upward. The upward movement of the fixing part 41 will drive the second rack 45 to move upward. The upward movement of the second rack 45 will drive the second gear 46 to rotate in the opposite direction of the previous direction. The rotation of the second gear 46 will drive the third rack 47 to move upward. The upward movement of the third rack 47 will drive the release part 25 to move upward and reset. In this way, when the pottery pot is unloaded to the unloading point, the bottom of the pottery pot can be buffered to prevent the pottery pot from being damaged.

[0037] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An automatic loading and unloading device for road freight transportation, comprising a telescopic member (12), the telescopic member (12) is connected to a cart (1), a telescopic end of the telescopic member (12) is provided with a symmetrically arranged fixed block (111), a side of the telescopic member (12) is provided with a plurality of clamping holes, a motor (14) is fixedly connected to the telescopic member (12), a winding wheel (15) is fixedly connected to the output end of the motor (14), a fixing plate (17) is fixedly connected to the inner side of the top of the telescopic member (12), the fixing plate (17) is rotatably connected to the winding wheel (15), a pull rope (16) is wound around the winding wheel (15), one end of the pull rope (16) is fixedly connected to the winding wheel (15), and the characteristics are as follows: The invention also comprises a latch (13), the latch (13) being inserted into a clamping hole of the telescopic member (12), and the height of the telescopic member (12) can be adjusted by inserting the latch (13) into different clamping holes on the front side of the telescopic member (12); a vertically symmetrically arranged center wheel (18) is rotatably connected between symmetrically arranged fixed blocks (111); a pull rope (16) passes through a gap between the vertically symmetrically arranged center wheels (18); a locking assembly is fixedly connected to the other end of the pull rope (16); the locking assembly is used to lock the pottery pot, and the pottery pot can be loaded and unloaded by winding and lowering the pull rope (16).

2. The automatic loading and unloading device for road freight transportation according to claim 1, characterized in that: The locking assembly comprises a threaded sleeve (19), the threaded sleeve (19) is fixedly connected to the other end of the pull rope (16), and the screw rods (110) arranged symmetrically in the transverse direction are threadedly connected to the two sides of the threaded sleeve (19), and the screw rods (110) are locked and matched with the pottery pot.

3. The automatic loading and unloading device for road freight transportation according to claim 2, characterized in that: The invention also comprises a counterweight (11), which is fixedly connected to the cart (1). The counterweight (11) is used to increase the gravity of the cart (1) to prevent the pottery pot from being too heavy and causing the cart (1) to tip over.

4. The automatic loading and unloading device for road freight transportation according to claim 3, characterized in that: The invention also comprises a stabilizing mechanism for stabilizing the pottery pot, the stabilizing mechanism comprising a first guide rail (23), the first guide rail (23) being symmetrically arranged and fixedly connected to the inner side of the fixing block (111), a stabilizing clip (22) being slidably connected to the first guide rail (23), the inner side of the stabilizing clip (22) being an arc groove, the stabilizing clip (22) being snap-fitted with the threaded sleeve (19), a tension spring (24) being wound on the first guide rail (23), one end of the tension spring (24) being fixedly connected to the stabilizing clip (22), and the other end of the tension spring (24) being fixedly connected to the stabilizing clip (22). The stabilizing clamp (22) is pressed and matched with the threaded sleeve (19); the connecting piece (21) is fixedly connected to the symmetrically arranged fixed block (111); the stabilizing piece (2) is fixedly connected to one end of the connecting piece (21) away from the fixed block (111); the stabilizing piece (2) is a semicircular arc structure; the stabilizing piece (2) is pressed and matched with the pottery pot; the pressing assembly is fixedly connected to the telescopic piece (12) near the center wheel (18); the pressing assembly is pressed and matched with the stabilizing clamp (22); and the pressing assembly is used to press the stabilizing clamp (22).

5. The automatic loading and unloading device for road freight transportation according to claim 4, characterized in that: The pressing component includes a second guide rail (26), the second guide rail (26) is fixedly connected to the telescopic member (12) near the center wheel (18), the release member (25) is slidably connected to one end of the second guide rail (26) near the stabilizing clamp (22), the bottom of the release member (25) is provided with an inclined surface, the inclined surface at the bottom of the release member (25) is squeezed and matched with the stabilizing clamp (22), the compression spring (27) is wound on the second guide rail (26), one end of the compression spring (27) is fixedly connected to the telescopic member (12), and the other end of the compression spring (27) is fixedly connected to the release member (25).

6. The automatic loading and unloading device for road freight transportation according to claim 5, characterized in that: The invention also comprises a supporting mechanism for assisting the screw rod (110) in supporting the pottery pot, wherein the supporting mechanism comprises a rotating member (35), the rotating member (35) being symmetrically arranged along the threaded sleeve (19) and being rotatably connected to the outside of the screw rod (110), a first gear (34) being fixedly connected to the middle of the top of the rotating member (35), a third guide rail (31) being fixedly connected to the rotating member (35), an extrusion member (3) being slidably connected to the third guide rail (31), a first rack (33) being fixedly connected to the bottom of the extrusion member (3), the first rack (33) and the first gear (34) being meshed with each other, a force storage spring (32) being wound on the third guide rail (31), one end of the force storage spring (32) being fixedly connected to the third guide rail (31), and the other end of the force storage spring (32) being fixedly connected to the extrusion member (3).

7. The automatic loading and unloading device for road freight transportation according to claim 6, characterized in that: It also includes a rubber pad (36) which is fixedly connected to the outside of the rotating member (35) and is extrusion-matched with the pottery pot.

8. The automatic loading and unloading device for road freight transportation according to claim 7, characterized in that: The invention also comprises an electric push rod (4), the electric push rod (4) being fixedly connected to the telescopic member (12) near one of the fixed blocks (111), the fixed member (41) being fixedly connected to the telescopic end of the electric push rod (4), the air bag (44) being fixedly connected to the bottom of the fixed member (41), the air pump (42) being fixedly connected to a side of the fixed member (41) away from the stabilizing clamp (22), the air guide tube (43) being connected between the air pump (42) and the air bag (44), the air guide tube (43) connecting the air pump (42) and the air bag (44), and the second gear (46) and the second rack (45) being meshed with each other.

9. The automatic loading and unloading device for road freight transportation according to claim 8, characterized in that: The driving assembly includes a second rack (45) fixedly connected to one side of the fixing member (41), a second gear (46) rotatably connected to one side of the fixing block (111) close to the electric push rod (4), a third rack (47) fixedly connected to one side of the release member (25) close to the second rack (45), and the third rack (47) and the second gear (46) are meshed with each other.

10. The automatic loading and unloading device for road freight transportation according to claim 9, characterized in that: The bottom of the cart (1) is fixedly connected with a plurality of wheels, and the wheels allow the cart (1) to move freely, thereby driving the pottery pot to move.

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