A method of loading and unloading

Abstract

A method for loading and unloading cargo, utilizing a lifting system to load and unload cargo in a cargo warehouse, the loading and unloading method comprising: a tailgate accommodating method, a transporting and unloading method, a transporting and loading method, and a push-pull loading and unloading method; the transporting and loading method comprising method one: placing the barrier bar in a first state so that the tailgate is lower than a bottom wall of the cargo warehouse, with an operator positioned on the tailgate, thereby facilitating the transport of cargo on the tailgate into the cargo warehouse; method two: placing the barrier bar in a first state so that the tailgate is higher than an inner door sill and an outer door sill, with an operator positioned in the cargo warehouse, thereby facilitating the transport of cargo on the tailgate into the cargo warehouse.

Description

Technical Field

[0001] The present invention relates to the field of working vehicles, and in particular to a method for loading and unloading cargo. Background Art

[0002] Vehicle transportation often involves the transport of general cargo, but also specialized vehicles transporting more critical materials and documents. This requires loading and unloading. A tail lift is a type of onboard loading and unloading device installed at the rear or side of a vehicle. It provides a stable, safe, fast, and efficient means of loading and unloading cargo, and can be used in conjunction with forklifts, carts, and other devices to save manpower.

[0003] However, in actual engineering practice, the following problems still exist:

[0004] 1. When existing operating vehicles transport more important materials and information, the sealing and safety performance of the cargo hold is insufficient.

[0005] Second, when existing vehicles are loading and unloading, there is no enclosure structure on the tailboard that is convenient for storage.

[0006] 3. When existing vehicles are loading and unloading, the tailgate cannot be automatically turned over.

[0007] Fourth, when loading and unloading cargo on existing vehicles, the relative position between the tailgate and the cargo compartment is single or lacks a clear and effective calibration method.

[0008] Fifth, when loading and unloading goods on existing vehicles, there is a gap between the tailgate and the cargo compartment, which creates a gully. This is not conducive to the smooth transportation of goods or carts, and the goods are easily tripped by the gully.

[0009] 6. When loading and unloading goods with existing vehicles, if a cart is used to enter and exit the warehouse, a flat path is required. However, in some cases, there is a risk of preventing the goods in the warehouse from rolling out or falling out of the warehouse.

[0010] 7. When existing operating vehicles transport more important materials and information, in some cases, personnel may be selected to accompany the vehicle to guard the goods. If there are many additional components in the warehouse, it is more cumbersome to open the warehouse door. When there is no need to load or unload goods and only small tools need to be transferred, it is obviously more cumbersome to open all the components such as the tailgate and the warehouse door. Summary of the Invention

[0011] In order to overcome the above problems, the present invention proposes a solution to solve the above multiple problems at the same time.

[0012] The technical solution adopted by the present invention to solve the technical problem is: a loading and unloading method, which uses a lifting system to load and unload goods in a cargo hold, the lifting system including a lifting frame, a lifting beam, a transverse plate, a tail plate, a vertical plate, a barrier rod, a hinged seat, a roller frame, rollers, a transition frame, and a block; the loading and unloading method includes: a tail plate storage method, a transport and unloading method, a transport and loading method, and a push-pull loading and unloading method;

[0013] The rear portion of the cargo hold includes an outer wall and an inner wall, a first door is provided on the outer wall, a second door is provided on the inner wall, an outer threshold is provided below the first door, and an inner threshold is provided below the second door, the outer wall is provided with the lifting frame, the lifting beam can move up and down in the lifting frame, a vertical plate is installed on the lifting beam, the lower end of the vertical plate is pivotally connected to the horizontal plate, the horizontal plate is fixedly connected to the tail plate, and the tail plate includes a horizontal surface and an inclined surface;

[0014] The tailboard is provided with a hinged seat, one end of the enclosure rod is hingedly connected to the hinged seat, the other end of the enclosure rod is provided with a roller frame, and a roller is provided in the roller frame; when the enclosure rod is in a first state, the roller is located above the tailboard, and when the enclosure rod is in a second state, the roller is located behind the tailboard; the stopper is provided on the inner side of the lifting frame, and the stopper is connected to the lifting frame through a detachable connecting piece, and the stopper can be installed at different positions on the lifting frame through the detachable connecting piece; the lower end of the stopper is provided with an arc surface, and the arc surface extends upward to connect a vertical surface of the stopper;

[0015] The tailgate folding method includes: when the tailgate is unfolded and the barrier bar is in the second state, the lifting beam is lifted, the roller moves to contact the arc surface and moves upward along the arc surface, thereby realizing the flipping of the tailgate, and after flipping, the roller is in contact with the one vertical surface;

[0016] The transition frame is provided below the outer wall, and includes a transition surface, the transition surface being located between the tailgate and the outer door sill, a transfer hole being formed in the middle of the transition surface, and an indicator light being mounted on the transition frame; the outer door sill and the inner door sill can be rotated and lodged;

[0017] The method for handling and unloading cargo includes: placing the barrier bar in a first state, causing the tailgate to be higher than the inner and outer thresholds, and an operator being located in the cargo hold, thereby facilitating the handling of cargo in the cargo hold onto the tailgate;

[0018] The method for loading and transporting cargo includes a first method: placing the barrier bar in a first state so that the tailgate is lower than the bottom wall of the cargo hold, and an operator is positioned on the tailgate, thereby facilitating the transport of cargo on the tailgate into the cargo hold; a second method: placing the barrier bar in the first state so that the tailgate is higher than the inner and outer thresholds, and an operator is positioned in the cargo hold, thereby facilitating the transport of cargo on the tailgate into the cargo hold;

[0019] The push-pull loading and unloading method includes: making the upper surface of the tailboard flush with the upper surface of the bottom wall of the cargo warehouse, rotating and tilting the outer door sill to cover the transfer hole, thereby facilitating the pushing and pulling of goods in and out of the cargo warehouse.

[0020] Preferably, when the transverse plate is pivoted to a predetermined position around the vertical plate, the pivotal connection between the two can be fixed, thereby achieving positional fixation between the vertical plate and the transverse plate.

[0021] Preferably, the first door and the second door are of the same size.

[0022] Preferably, the outer wall size is larger than the inner wall size.

[0023] Preferably, the outer door sill and the inner door sill are of the same height.

[0024] Preferably, a convex portion is provided on one end of the horizontal plate connected to the vertical plate.

[0025] Preferably, a connector is provided at the lower end of the vertical plate to connect to the horizontal plate.

[0026] Preferably, there are two groups of cooperation between the lifting frame and the lifting beam.

[0027] Preferably, two vertical plates are provided at the lower portion of each lifting beam.

[0028] Preferably, a horizontal plate is sandwiched between the two vertical plates.

[0029] The beneficial effects of the present invention are:

[0030] 1. In response to the first point raised in the background technology, an integrated cargo hold is designed. The rear door of the cargo hold is smaller than the rear door of a common truck, and a second layer of door panel is designed to improve confidentiality and protection.

[0031] 2. In response to the second point raised in the background technology, pivotable and retractable rod structures are provided on both sides of the tailgate to serve as barrier rods.

[0032] 3. Regarding the third point raised in response to the background technology, the lifting beam can move up and down in the lifting frame, and the lifting beam can drive the tailgate to rise and fall. The tailgate and the lifting beam are pivotally connected in an L-shape. A roller is provided at the end of the aforementioned enclosure rod, and a stop block is provided on the inner side of the lifting frame. The stop block has an arc surface. When the tailgate is lifted and the roller contacts the arc surface, the reaction downward pressure generated by the lifting force generates a torque to rotate the tailgate. As the lifting beam is lifted, the roller will also move along the arc surface, and finally move to the vertical surface of the stop block. The tailgate becomes vertical, completes the flip, and finally completes the lifting.

[0033] 4. With respect to the fourth point raised in the background technology, it is preferred that the position of the stopper be adjustable, and the stopper be connected to the lifting frame by a detachable connector. Through the different positions of the stopper on the lifting frame, the different positions of the tailgate can be clearly and intuitively calibrated. For example, when a cart is being transported, the tailgate is flush with the bottom wall of the cargo hold in the first position, making it convenient for the cart to be pushed into the cargo hold. For another example, during transportation, the tailgate is lower than the bottom wall of the cargo hold in the second position, making it convenient for the person on the tailgate to lift the goods, and the bottom wall of the cargo hold just corresponds to the position of the person's lower body. The person can directly place the goods carried below the waist into the cargo hold without having to bend down a second time to put the goods.

[0034] 5. In response to the fifth point raised in the background technology, a transition frame is set between the cargo hold and the tailgate. The transition frame is provided with a transition surface corresponding to the position of the cart rollers to facilitate the smooth passage of the cart; an indicator light is installed on the transition frame to remind people to stay away when the tailgate is stored.

[0035] 6. In response to the sixth point raised in the background technology, thresholds are set under the inner door and the outer door to prevent goods from accidentally falling out. At the same time, the thresholds can be rotated and tilted to facilitate the passage of carts, thereby improving adaptability.

[0036] 7. In response to the seventh point raised in the background art, a transfer hole is provided between the transition surfaces of the transition frame. Even when the tailgate is closed, the door can still be opened to transfer tools through the transfer hole.

[0037] In addition, if the transfer hole does affect the movement of the cart and causes a gully, the threshold under the outer door can be tilted outward to cover the transfer hole to form a flat path. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention will be further described below with reference to the accompanying drawings and examples.

[0039] Figure 1 The overall diagram of the flip lift tailgate system of the present invention

[0040] Figure 2 This is a three-dimensional diagram of the unfolded state of the lifting tailgate of the present invention

[0041] Figure 3 This is a three-dimensional diagram of the storage state of the lifting tailgate of the present invention

[0042] Figure 4 This is a three-dimensional diagram of the pivot position of the lifting tailgate of the present invention

[0043] Figure 5 This is a three-dimensional diagram of the pivotal structure of the lifting tailgate of the present invention

[0044] Figure 6 This is a three-dimensional diagram of the storage state of the fence rod of the present invention

[0045] Figure 7 The three-dimensional diagram of the enclosure state of the enclosure rod of the present invention

[0046] Figure 8 Detailed diagram of the transition frame and block of the present invention

[0047] Figure 9 The tailgate flipping process of the present invention Figure 1

[0048] Figure 10 The tailgate flipping process of the present invention Figure 2

[0049] Figure 11 The tail plate of the present invention is completed with the flip and transfer hole details

[0050] Figure 12 Figure 2 is the rear part of the transport vehicle of the present invention

[0051] Figure 13 This is a three-dimensional schematic diagram of the unloading state of the present invention

[0052] Figure 14 This is a framework diagram of the working method of the present invention

[0053] In the figures, the reference numerals are as follows:

[0054] 1. Cargo hold, 2. Outer wall, 3. Inner wall, 4. Lifting frame, 5. Lifting beam, 6. Horizontal plate, 7. Tail plate, 8. Vertical plate, 9. Guarding rod, 10. Articulated seat, 11. Protrusion, 12. Roller frame, 13. Roller, 14. Inner threshold, 15. Outer threshold, 16. Transition frame, 17. Transition surface, 18. Block, 19. Mounting hole, 20. Transfer hole, 21. Hand crank, 22. Hand crank transmission device, 23. Reducer, 24. Motor, 25. Drive shaft, 26. Sprocket, 27. Mounting seat. DETAILED DESCRIPTION

[0055] As shown in the figure: a loading and unloading method, using a lifting system to load and unload goods in a cargo hold, the lifting system includes a lifting frame, a lifting beam, a cross plate, a tail plate, a vertical plate, a fence rod, a hinged seat, a roller frame, rollers, a transition frame, and a block; the loading and unloading method includes: a tail plate storage method, a transport and unloading method, a transport and loading method, and a push-pull loading and unloading method;

[0056] The rear portion of the cargo hold includes an outer wall and an inner wall, a first door is provided on the outer wall, a second door is provided on the inner wall, an outer threshold is provided below the first door, and an inner threshold is provided below the second door, the outer wall is provided with the lifting frame, the lifting beam can move up and down in the lifting frame, a vertical plate is installed on the lifting beam, the lower end of the vertical plate is pivotally connected to the horizontal plate, the horizontal plate is fixedly connected to the tail plate, and the tail plate includes a horizontal surface and an inclined surface;

[0057] The tailboard is provided with a hinged seat, one end of the enclosure rod is hingedly connected to the hinged seat, the other end of the enclosure rod is provided with a roller frame, and a roller is provided in the roller frame; when the enclosure rod is in a first state, the roller is located above the tailboard, and when the enclosure rod is in a second state, the roller is located behind the tailboard; the stopper is provided on the inner side of the lifting frame, and the stopper is connected to the lifting frame through a detachable connecting piece, and the stopper can be installed at different positions on the lifting frame through the detachable connecting piece; the lower end of the stopper is provided with an arc surface, and the arc surface extends upward to connect a vertical surface of the stopper;

[0058] The tailgate folding method includes: when the tailgate is unfolded and the barrier bar is in the second state, the lifting beam is lifted, the roller moves to contact the arc surface and moves upward along the arc surface, thereby realizing the flipping of the tailgate, and after flipping, the roller is in contact with the one vertical surface;

[0059] The transition frame is provided below the outer wall, and includes a transition surface, the transition surface being located between the tailgate and the outer door sill, a transfer hole being formed in the middle of the transition surface, and an indicator light being mounted on the transition frame; the outer door sill and the inner door sill can be rotated and lodged;

[0060] The method for handling and unloading cargo includes: placing the barrier bar in a first state, causing the tailgate to be higher than the inner and outer thresholds, and an operator being located in the cargo hold, thereby facilitating the handling of cargo in the cargo hold onto the tailgate;

[0061] The method for loading and transporting cargo includes a first method: placing the barrier bar in a first state so that the tailgate is lower than the bottom wall of the cargo hold, and an operator is positioned on the tailgate, thereby facilitating the transport of cargo on the tailgate into the cargo hold; a second method: placing the barrier bar in the first state so that the tailgate is higher than the inner and outer thresholds, and an operator is positioned in the cargo hold, thereby facilitating the transport of cargo on the tailgate into the cargo hold;

[0062] The push-pull loading and unloading method includes: making the upper surface of the tailboard flush with the upper surface of the bottom wall of the cargo warehouse, rotating and tilting the outer door sill to cover the transfer hole, thereby facilitating the pushing and pulling of goods in and out of the cargo warehouse.

[0063] As shown in the figure: when the transverse plate pivots around the vertical plate to a predetermined position, the pivotal connection between the two can be fixed, thereby achieving a fixed position between the vertical plate and the transverse plate. The first door and the second door are the same size. The outer wall is larger than the inner wall. The outer door sill and the inner door sill are the same height. A protrusion is provided on the end of the transverse plate that is connected to the vertical plate. A connector is provided at the lower end of the vertical plate to connect to the transverse plate. The lifting frame and the lifting beam are matched in two groups. Two vertical plates are provided at the lower part of each lifting beam. A transverse plate is sandwiched between the two vertical plates.

[0064] The opening sizes of the first door and the second door in the accompanying drawings are different in order to more clearly show the positional relationship between the inner wall and the outer wall. In actual design, it is preferable that the opening sizes of the two doors are the same, so that those skilled in the art can use conventional technical knowledge to make the inner door and the outer door open outward or inward at the same time without interfering with each other; because they are common, the schemes not shown include: the tailgate can be expanded or retracted with the help of hydraulic, electric or human power.

[0065] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not depart from the present invention should be included in the patent scope of this case.

Claims

1. A method for loading and unloading cargo in a cargo hold using a lifting system, characterized in that: The lifting system includes a lifting frame, a lifting beam, a transverse plate, a tail plate, a vertical plate, a fence rod, a hinged seat, a roller frame, rollers, a transition frame, and a block; the loading and unloading methods include: a tail plate storage method, a transport and unloading method, a transport and loading method, and a push-pull loading and unloading method; The rear portion of the cargo hold includes an outer wall and an inner wall, a first door is provided on the outer wall, a second door is provided on the inner wall, an outer threshold is provided below the first door, and an inner threshold is provided below the second door, the outer wall is provided with the lifting frame, the lifting beam can move up and down in the lifting frame, a vertical plate is installed on the lifting beam, the lower end of the vertical plate is pivotally connected to the horizontal plate, the horizontal plate is fixedly connected to the tail plate, and the tail plate includes a horizontal surface and an inclined surface; The tailboard is provided with a hinged seat, one end of the enclosure rod is hingedly connected to the hinged seat, the other end of the enclosure rod is provided with a roller frame, and a roller is provided in the roller frame; when the enclosure rod is in a first state, the roller is located above the tailboard, and when the enclosure rod is in a second state, the roller is located behind the tailboard; the stopper is provided on the inner side of the lifting frame, and the stopper is connected to the lifting frame through a detachable connecting piece, and the stopper can be installed at different positions on the lifting frame through the detachable connecting piece; the lower end of the stopper is provided with an arc surface, and the arc surface extends upward to connect a vertical surface of the stopper; The tailgate folding method includes: when the tailgate is unfolded and the barrier bar is in the second state, the lifting beam is lifted, the roller moves to contact the arc surface and moves upward along the arc surface, thereby realizing the flipping of the tailgate, and after flipping, the roller is in contact with the one vertical surface; The transition frame is provided below the outer wall, and includes a transition surface, the transition surface being located between the tailgate and the outer door sill, a transfer hole being formed in the middle of the transition surface, and an indicator light being mounted on the transition frame; the outer door sill and the inner door sill can be rotated and lodged; The method for handling and unloading cargo includes: placing the barrier bar in a first state, causing the tailgate to be higher than the inner and outer thresholds, and an operator being located in the cargo hold, thereby facilitating the handling of cargo in the cargo hold onto the tailgate; The method for loading and transporting cargo includes a first method: placing the barrier bar in a first state so that the tailgate is lower than the bottom wall of the cargo hold, and an operator is positioned on the tailgate, thereby facilitating the transport of cargo on the tailgate into the cargo hold; a second method: placing the barrier bar in the first state so that the tailgate is higher than the inner and outer thresholds, and an operator is positioned in the cargo hold, thereby facilitating the transport of cargo on the tailgate into the cargo hold; The push-pull loading and unloading method includes: making the upper surface of the tailboard flush with the upper surface of the bottom wall of the cargo warehouse, rotating and tilting the outer door sill to cover the transfer hole, thereby facilitating the pushing and pulling of goods in and out of the cargo warehouse.

2. A method for loading and unloading cargo according to claim 1, characterized in that: When the transverse plate is pivoted to a predetermined position around the vertical plate, the pivot connection between the two can be fixed, thereby achieving positional fixation between the vertical plate and the transverse plate.

3. A method for loading and unloading cargo according to claim 1, characterized in that: The first door and the second door have the same size.

4. A method for loading and unloading cargo according to claim 1, characterized in that: The outer wall size is larger than the inner wall size.

5. A method for loading and unloading cargo according to claim 1, characterized in that: The outer door sill and the inner door sill have the same height.

6. A method for loading and unloading cargo according to claim 1, characterized in that: A convex portion is provided on one end of the horizontal plate connected to the vertical plate.

7. A method for loading and unloading cargo according to claim 1, characterized in that: A connector is provided at the lower end of the vertical plate to connect with the horizontal plate.

8. A method for loading and unloading cargo according to claim 1, characterized in that: There are two groups of cooperation between the lifting frame and the lifting beam.

9. A method for loading and unloading cargo according to claim 8, characterized in that: Two vertical plates are provided at the lower part of each lifting beam.

10. A method for loading and unloading cargo according to claim 9, characterized in that: A horizontal board is sandwiched between two vertical boards.

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