Vehicle-mounted transfer device
By designing a vehicle-mounted transfer device, the automatic loading, unloading, and transportation of goods are realized, solving the problem of material transfer in areas with limited temporary freight yard conditions, saving manpower and time, and ensuring safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-20
AI Technical Summary
In temporary freight yards or areas with limited resources, it is difficult to equip forklifts for material transfer, resulting in time-consuming and labor-intensive manual or manual equipment transfer, which poses safety hazards.
Design a vehicle-mounted transfer device, including forks, lifting mechanism, traveling mechanism and power module, to realize automatic loading, unloading and transportation of goods, and have the ability to autonomously load and unload goods from trucks.
It saves manpower and time, ensures the safety of personnel and materials, and solves the problems of manpower consumption and safety during the transfer process.
Smart Images
Figure CN224015251U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of logistics transfer equipment, and in particular relates to a vehicle-mounted transfer device. Background Technology
[0002] The transfer of goods from the site to the truck or vice versa is a crucial step in the logistics process, often requiring the use of forklifts. However, in temporary storage areas or areas with limited resources, it is difficult to equip forklifts for this purpose. Therefore, goods transfer under these conditions typically relies on manual labor or manual machinery; this undoubtedly leads to a waste of manpower and time, and may even result in safety issues such as personal injury and damage to goods.
[0003] In response to the above situation, there is an urgent need for a vehicle-mounted material transfer device that can be transported along with the materials and can autonomously load and unload materials upon arrival at the destination. Utility Model Content
[0004] This utility model provides a vehicle-mounted transfer device that enables simultaneous cargo transfer and vehicle transportation, allowing for autonomous loading and unloading from trucks, thus saving significant manpower. Specific details are as follows:
[0005] A vehicle-mounted transfer device includes forks, a lifting mechanism, a traveling mechanism, and a power module;
[0006] The forks are mounted on the lifting mechanism and are used to pick up goods;
[0007] The lifting mechanism is mounted on the traveling mechanism and is used to drive the forks to move up and down;
[0008] The walking mechanism is located at the lower part of the transfer device and includes a driving mechanism, driven wheels and a shuttle support.
[0009] The driving mechanism is located at the lower end of the lifting mechanism and is used to drive the transfer device to move.
[0010] The driven wheel is located at the front end of the shuttle support; the shuttle support is located at the lower end of the lifting mechanism and can shuttle back and forth.
[0011] The power module is mounted on the lifting mechanism and electrically connected to both the lifting mechanism and the traveling mechanism, and is used to provide power to the transfer device.
[0012] Furthermore, the lifting mechanism includes a frame, a lifting transmission mechanism, and a lifting drive unit; the traveling mechanism is located at the lower end of the frame; the lifting transmission mechanism is located on the frame and can move up and down along the frame; the power output end of the lifting drive unit cooperates with the power input end of the lifting transmission mechanism.
[0013] Furthermore, the lifting transmission mechanism includes a primary lifting transmission mechanism and a secondary lifting transmission mechanism; the lifting drive unit includes a primary lifting drive unit and a secondary lifting drive unit; the frame includes a primary frame and a secondary frame;
[0014] The primary lifting transmission mechanism is mounted on the primary frame, and its power output end can move up and down along the primary frame; the power output end of the primary lifting drive unit cooperates with the power input end of the primary lifting transmission mechanism; the forks are connected to the power output end of the primary lifting transmission mechanism.
[0015] The secondary frame is vertically mounted on the traveling mechanism; the secondary lifting transmission mechanism is mounted on the secondary frame, and its power output end can move up and down along the secondary frame; the power output end of the secondary lifting drive unit cooperates with the power input end of the secondary lifting transmission mechanism; the primary frame is connected to the power output end of the secondary lifting transmission mechanism.
[0016] Furthermore, the driving mechanism includes a drive wheel and a driving unit; the drive wheel is disposed on both sides of the secondary frame, and its power input end is connected to the power output end of the driving unit.
[0017] Furthermore, it also includes a control module; the control module includes a control unit, an operation panel, and a remote control handle;
[0018] The control unit and the operation panel are integrated and arranged on one side of the power module. The control unit is electrically connected to the power module, the first-stage lifting drive unit, the second-stage lifting drive unit, the driving drive unit, the operation panel, and the remote control handle, respectively, and is used to receive instructions from the operation panel and the remote control handle, and control the start and stop of the first-stage lifting drive unit, the second-stage lifting drive unit, and the driving drive unit.
[0019] Furthermore, the shuttle bracket is arranged on both sides of the secondary frame and nested at the bottom of the forks, and a connecting support wheel is provided in the middle.
[0020] Furthermore, a trigger switch is provided at the top of the primary frame; the trigger switch is used to control the start and stop of the secondary lifting drive unit.
[0021] Furthermore, the fork includes a fork body and a fork carriage; the fork is disposed at the front end of the fork carriage; the fork carriage is connected to the power output end of the primary lifting transmission mechanism, and a lifting guide wheel is disposed between the fork carriage and the primary frame.
[0022] Furthermore, lifting guide wheels are provided between the primary frame and the secondary frame.
[0023] Furthermore, the transfer device also includes several foldable and retractable connecting pads; each connecting pad includes a pad body, a lower hook, and a quick clamp; the lower hook is located at the lower end of the pad body; the quick clamp is foldable and located at the upper end of the pad body, with its lower end passing through the pad body and connecting to the lower hook; when loading and unloading goods, the connecting pads are laid on the shoulder between the truck bed and the truck bed's lower door.
[0024] The beneficial effects of this utility model are:
[0025] 1. Equipped with a lifting mechanism and power module, it can automatically load and unload goods, saving manpower and time, and ensuring the safety of personnel and materials;
[0026] 2. The walking mechanism enables automatic transport of goods, saving manpower and time, and ensuring the safety of personnel and materials;
[0027] 3. The shuttle support is set in the walking mechanism, which can realize the automatic loading and unloading of the transfer device onto and off the truck, eliminating the need for manual handling of the transfer device. This makes the transfer device more convenient for vehicle transportation, solving the problems of large consumption of manpower and time during the transfer of materials, as well as safety issues such as easy injury to personnel and damage to materials. Attached Figure Description
[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.
[0029] Figure 1 A schematic diagram of the overall structure of the vehicle-mounted transfer device in its deployed state;
[0030] Figure 2 This is a schematic diagram of the overall structure of the vehicle-mounted transfer device;
[0031] Figure 3 A schematic diagram of the vehicle-mounted transfer device in the loading and unloading state.
[0032] Figure 4A schematic diagram of the docking pad structure for the vehicle-mounted transfer device;
[0033] In the diagram: 1. Fork; 101. Fork body; 102. Fork carriage; 2. Lifting mechanism; 201. Primary lifting transmission mechanism; 202. Secondary lifting transmission mechanism; 203. Primary lifting drive unit; 204. Secondary lifting drive unit; 205. Primary frame; 206. Secondary frame; 207. Rack; 208. Gear; 209. Primary support; 210. Secondary support; 211. Lifting guide wheel; 3. Traveling mechanism; 301. Travel drive mechanism; 3001. Drive wheel; 3002. Travel drive unit; 302. Driven wheel; 303. Shuttle support; 304. Connecting support wheel; 4. Power module; 401. Spiral cable; 5. Control panel; 6. Trigger switch; 7. Connecting pad; 701. Pad body; 702. Lower hook; 703. Quick clamp. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] It should be noted that when a component is referred to as "fixed to," "placed," "equipped with," "provided with," "arranged on," or "connected to" another component, it can be directly on the other component or may have an intervening component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or may have an intervening component present.
[0037] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0038] Please refer to Figures 1-4 To better understand the specific structure of this utility model, a vehicle-mounted transfer device, such as... Figure 2 As shown, it includes forks 1, lifting mechanism 2, traveling mechanism 3 and power module 4;
[0039] The forks 1 are mounted on the lifting mechanism 2 and are used to pick up goods;
[0040] The lifting mechanism 2 is mounted on the traveling mechanism 3 and is used to drive the forks 1 to move up and down.
[0041] The walking mechanism 3 is located at the lower part of the transfer device and includes a driving mechanism 301, a driven wheel 302 and a shuttle support 303.
[0042] The driving mechanism 301 is located at the lower end of the lifting mechanism 2 and is used to drive the transfer device to move.
[0043] The driven wheel 302 is disposed at the front end of the shuttle bracket 303; the shuttle bracket 303 is disposed at the lower end of the lifting mechanism 2, which can shuttle back and forth.
[0044] The power module 4 is mounted on the lifting mechanism 2 and is electrically connected to both the lifting mechanism 2 and the traveling mechanism 3, and is used to provide power to the transfer device.
[0045] It should be noted that the power module 4 is preferably powered by a lithium battery and is equipped with conventional electrical equipment for controlling the current and voltage in the circuit; the power module 4 is integrated in the electrical box and fixed on the primary frame 205 mentioned later.
[0046] In practical implementation, a lifting mechanism 2 and a power module 4 are set up to enable automatic loading and unloading of goods, saving manpower and time and ensuring the safety of personnel and materials; a walking mechanism 3 is set up to enable automatic transportation of goods, saving manpower and time and ensuring the safety of personnel and materials; a shuttle bracket 303 is set up in the walking mechanism 3 to enable automatic loading and unloading of the transfer device onto and off trucks, eliminating the need for manual handling of the transfer device, making it more convenient for vehicle transportation, solving the problems of large consumption of manpower and time during the transfer of materials, as well as safety issues such as easy injury to personnel and damage to materials.
[0047] In the embodiments provided by this utility model, such as Figure 1 As shown, the lifting mechanism 2 includes a frame, a lifting transmission mechanism, and a lifting drive unit; the walking mechanism 3 is located at the lower end of the frame; the lifting transmission mechanism is located on the frame and can move up and down along the frame; the power output end of the lifting drive unit cooperates with the power input end of the lifting transmission mechanism.
[0048] The lifting transmission mechanism includes a primary lifting transmission mechanism 201 and a secondary lifting transmission mechanism 202; the lifting drive unit includes a primary lifting drive unit 203 and a secondary lifting drive unit 204; the frame includes a primary frame 205 and a secondary frame 206.
[0049] The primary lifting transmission mechanism 201 is mounted on the primary frame 205, and its power output end can move up and down along the primary frame 205; the power output end of the primary lifting drive unit 203 is engaged with the power input end of the primary lifting transmission mechanism 201; the fork 1 is connected to the power output end of the primary lifting transmission mechanism 201.
[0050] The secondary frame 206 is vertically mounted on the traveling mechanism 3; the secondary lifting transmission mechanism 202 is mounted on the secondary frame 206, and its power output end can move up and down along the secondary frame 206; the power output end of the secondary lifting drive unit 204 cooperates with the power input end of the secondary lifting transmission mechanism 202; the primary frame 205 is connected to the power output end of the secondary lifting transmission mechanism 202.
[0051] It should be noted that the primary lifting transmission mechanism 201 and the secondary lifting transmission mechanism 202 are preferably gear 208 and rack 207 transmission mechanisms; the primary lifting drive unit 203 and the secondary lifting drive unit 204 are preferably stepper motors as drive components; and the primary frame 205 and the secondary frame 206 are preferably channel steel structures.
[0052] It should be noted that the rack 207 of the primary lifting transmission mechanism 201 is fixed to the channel steel columns on both sides of the primary frame 205, preferably by welding; a primary bracket 209 is formed between the channel steel columns on both sides of the primary frame 205; the primary bracket 209 has lifting guide wheels 211 on both sides and is fixedly connected to the fork 1 in the middle; the lifting guide wheels 211 are embedded in the grooves of the channel steel on both sides; the primary lifting drive unit 203 is preferably fixedly installed on the primary bracket 209 by screws; the output end of the primary lifting drive unit 203, i.e., the output shaft of the stepper motor, cooperates with the gear 208 of the primary lifting transmission mechanism 201 and drives the gear 208 to rotate; the gear 208 meshes with the rack 207, and under the drive of the primary lifting drive unit 203, the primary bracket 209, the primary lifting drive unit 203, and the gear 208 move up and down along the rack 207; the primary bracket 209, as the output end of the primary lifting transmission mechanism 201, drives the fork 1 to move up and down together.
[0053] It should be noted that the rack 207 of the secondary lifting transmission mechanism 202 is fixed to the channel steel columns on both sides of the secondary frame 206, preferably by welding; a secondary bracket 210 is formed between the channel steel columns on both sides of the secondary frame 206; the secondary bracket 210 has lifting guide wheels 211 on both sides and is fixedly connected to the primary frame 205; the lifting guide wheels 211 are embedded in the grooves of the channel steel on both sides; the secondary lifting drive unit 204 is preferably fixedly installed on the secondary bracket 210 by screws; the output end of the secondary lifting drive unit 204, i.e., the output shaft of the stepper motor, cooperates with the gear 208 of the secondary lifting transmission mechanism 202 and drives the gear 208 to rotate; the gear 208 meshes with the rack 207, and under the drive of the secondary lifting drive unit 204, the secondary bracket 210, the secondary lifting drive unit 204, and the gear 208 move up and down along the rack 207; the secondary bracket 210, as the output end of the secondary lifting transmission mechanism 202, drives the primary frame 205 to move up and down together.
[0054] It should be noted that, since the distance between the power module 4 and the secondary lifting drive unit 204 will change as the primary frame 205 moves upward, a retractable spiral cable 401 is preferably used to connect the power module 4 and the secondary lifting drive unit 204.
[0055] In its specific implementation, this utility model adopts a two-stage lifting structure, which increases the lifting height while reducing the minimum size of the entire machine. This not only meets the requirement that the lifting height must be higher than the floor of the truck bed when loading and unloading goods, but also solves the problem of height restrictions inside the truck bed, thereby enabling this transfer device to be transported with the vehicle. The maximum lifting height of this utility model is 1600mm, and the minimum overall height is 1450mm. Other transfer machines, while meeting the lifting height requirement, generally have a minimum overall height of around 2300mm, while the truck bed height is generally within 2000mm, making it difficult to achieve the function of transporting with the vehicle.
[0056] In one implementation, such as Figure 1 As shown, the driving mechanism 301 includes a driving wheel 3001 and a driving unit 3002; the driving wheel 3001 is disposed on both sides of the secondary frame 206, and its power input end is connected to the power output end of the driving unit 3002.
[0057] It should be noted that the two sides of the bottom of the secondary frame 206 extend outward to form two platforms; the lower end face of the platform is equipped with the drive wheel 3001, and the upper end face is equipped with the driving drive unit 3002; the driving drive unit 3002 is preferably a stepper motor structure, and the output shaft of the stepper motor, that is, the power output end of the driving drive unit 3002, is preferably connected to the power input end of the drive wheel 3001, that is, the input shaft, through a bevel gear 208 structure, so that the drive wheel 3001 can both rotate backward and swing left and right.
[0058] In practice, the installation of drive wheels 3001 and driving units 3002 enables the automatic movement of the transfer device. The differential operation of the driving units 3002 on both sides allows the transfer device to turn, which is beneficial for the transfer of materials and saves manpower and time.
[0059] In the embodiments provided by this utility model, such as Figure 1 As shown, it also includes a control module; the control module includes a control unit, an operation panel 5, and a remote control handle;
[0060] The control unit and the operation panel 5 are integrated and arranged on one side of the power module 4. The control unit is electrically connected to the power module 4, the first-stage lifting drive unit 203, the second-stage lifting drive unit 204, the driving drive unit 3002, the operation panel 5, and the remote control handle, respectively, and is used to receive instructions from the operation panel 5 and the remote control handle, and control the start and stop of the first-stage lifting drive unit 203, the second-stage lifting drive unit 204, and the driving drive unit 3002.
[0061] It should be noted that the control module is preferably fixed at the upper end of the upper frame; the control unit preferably adopts a PLC (Programmable Logic Controller) control circuit, or it can be a circuit including at least one processor, or a circuit including at least one microcontroller, or it can be a combination of multiple circuits or chips, as long as it can achieve the corresponding function; it is understood that for those skilled in the art, the control circuit can also be a common circuit composed of amplifiers, comparators, transistors, MOSFETs, etc., to implement the corresponding function in a purely hardware manner.
[0062] It should be noted that the remote control handle is preferably connected to the receiver in the control panel 5 wirelessly, so that the operation of the control panel 5 can be controlled wirelessly; the control panel 5 is equipped with a power switch, lifting control button, power display screen and charging interface.
[0063] In practice, setting up a control module can enable direct or wireless control of the operation of the transfer device, which is beneficial for the transfer of materials.
[0064] In one implementation, such as Figure 2 , 3 As shown, the shuttle bracket 303 is arranged on both sides of the secondary frame 206 and nested at the bottom of the fork 1, and a connecting support wheel 304 is provided in the middle.
[0065] It should be noted that the bottom of the secondary frame 206 is preferably fixed with a base plate by welding, and the base plate has grooves on both sides; the shuttle bracket 303 is inserted into the groove and can move back and forth along the groove; the driven wheel 302 at the front end of the shuttle bracket 303 can bear the weight of the goods; the connecting support wheel 304 in the middle can keep the shuttle bracket 303 able to move back and forth smoothly in the base plate.
[0066] It should be noted that the fork body 101 is a channel steel structure with a groove at the bottom, so that the shuttle bracket 303 can be nested in the groove after it is lowered.
[0067] It should be noted that the connecting support wheel 304 is designed with three wheels arranged in a triangle; the middle wheel is positioned lower and the two side wheels are positioned higher. The purpose of this is that when the transfer device is loaded or unloaded, the shuttle bracket 303 needs to be manually pushed to slide back and forth between the car floor and the car's lower door. Setting the connecting support wheel 304 can reduce friction, especially when crossing the shoulder. The higher wheels on both sides can easily cross the shoulder, acting as rolling fulcrums.
[0068] In practice, the shuttle bracket 303 nested at the bottom of the fork 1 can save space, making the structure more compact and facilitating vehicle transportation; the connecting support wheel 304 makes it easier for the transfer device to get on and off the vehicle, which is helpful for the transfer of goods.
[0069] In the embodiments provided by this utility model, such as Figure 1 As shown, a trigger switch 6 is provided on the top of the primary frame 205; the trigger switch 6 is used to control the start and stop of the secondary lifting drive unit 204.
[0070] It should be noted that the trigger switch 6 is electrically connected to the power unit; it adopts a press-triggered structure. When the fork 1 moves up to the upper stop point, it will press down the switch, which will automatically connect the circuit of the secondary lifting drive unit 204. When the fork 1 moves down, it releases the switch, which will disconnect the circuit of the secondary lifting drive unit 204.
[0071] It should be noted that when the fork 1 starts to lift from the lowest point, under the drive of the first-stage lifting drive unit 203, the fork 1 first moves upward along the first-stage frame 205. After moving to the upper stop point, the control unit stops the operation and presses the trigger switch 6. At this time, the second-stage lifting drive unit 204 starts, driving the first-stage frame 205 to move upward along the second-stage frame 206 until it is lifted to the highest point, where the control unit stops the operation. When the fork 1 moves downward, the trigger switch 6 is released, and the second-stage lifting drive unit 204 starts again. At this time, the fork 1 and the first-stage frame 205 move downward together to the lowest point, where the control unit stops the operation.
[0072] In practice, a trigger switch 6 is set up to automatically control the start and stop of the secondary lifting drive unit 204, and the speed is faster during the descent, saving time and facilitating the transfer of goods.
[0073] In one implementation, such as Figure 2 As shown, the fork 1 includes a fork body 101 and a fork carriage 102; the fork 1 is disposed at the front end of the fork carriage 102; the fork carriage 102 is connected to the power output end of the primary lifting transmission mechanism 201, and a lifting guide wheel 211 is disposed between the fork carriage 102 and the primary frame 205.
[0074] A lifting guide wheel 211 is provided between the primary frame 205 and the secondary frame 206.
[0075] It should be noted that there are preferably two fork bodies 101, and they are all slidably connected to the fork carriage 102, that is, the distance between the two fork bodies 101 can be adjusted.
[0076] It should be noted that both the primary frame 205 and the secondary frame 206 are made of channel steel, and the lifting guide wheel 211 is preferably embedded in its respective groove.
[0077] In practice, the fork body 101 is adjustable to accommodate the transfer of goods of different sizes; the lifting guide wheel 211 can convert sliding friction into rolling friction; all of these are beneficial to the transfer of goods.
[0078] In the embodiments provided by this utility model, such as Figure 4 As shown, the transfer device also includes several foldable and retractable connecting pads 7; each connecting pad 7 includes a pad body 701, a lower hook 702, and a quick clamp 703; the lower hook 702 is disposed at the lower end of the pad body 701; the quick clamp 703 is foldably disposed at the upper end of the pad body 701, and its lower end passes through the pad body 701 and connects to the lower hook 702; when loading and unloading goods, the connecting pads 7 are laid on the shoulder between the truck bed and the truck bed's lower door.
[0079] It should be noted that the dimensions of the various connecting pads 7 are different, so that different sizes of connecting pads 7 can be selected for different trucks.
[0080] In practice, different sizes of connecting pads 7 are set to adapt to different vehicle models. The connecting pads 7 can be used to pave the shoulder between the truck bed and the truck bed door, converting it into a flat surface and extending the support surface. This allows the shuttle bracket 303 to pass smoothly over the shoulder when the transfer device automatically loads the truck, preventing jamming and imbalance that could prevent loading or tilting.
[0081] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0082] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A vehicle-mounted transfer device, characterized in that, Includes forks, lifting mechanism, traveling mechanism, power module, and docking pad; The forks are mounted on the lifting mechanism and are used to pick up goods; The lifting mechanism is mounted on the traveling mechanism and is used to drive the forks to move up and down; The walking mechanism is located at the lower part of the transfer device and includes a driving mechanism, driven wheels and a shuttle support. The driving mechanism is located at the lower end of the lifting mechanism and is used to drive the transfer device to move. The driven wheel is located at the front end of the shuttle support; the shuttle support is located at the lower end of the lifting mechanism and can shuttle back and forth. The power module is mounted on the lifting mechanism and electrically connected to both the lifting mechanism and the traveling mechanism, and is used to provide power to the transfer device. Several of the aforementioned connecting pads are foldable and can be stored in a collapsible manner. They are laid on the shoulder between the floor of the truck bed and the fold-down door of the truck bed during loading and unloading.
2. The vehicle-mounted transfer device according to claim 1, characterized in that, The lifting mechanism includes a frame, a lifting transmission mechanism, and a lifting drive unit; the traveling mechanism is located at the lower end of the frame; the lifting transmission mechanism is located on the frame and can move up and down along the frame; the power output end of the lifting drive unit cooperates with the power input end of the lifting transmission mechanism.
3. The vehicle-mounted transfer device according to claim 2, characterized in that, The lifting transmission mechanism includes a primary lifting transmission mechanism and a secondary lifting transmission mechanism; the lifting drive unit includes a primary lifting drive unit and a secondary lifting drive unit; the frame includes a primary frame and a secondary frame; The primary lifting transmission mechanism is mounted on the primary frame, and its power output end can move up and down along the primary frame; the power output end of the primary lifting drive unit cooperates with the power input end of the primary lifting transmission mechanism; the forks are connected to the power output end of the primary lifting transmission mechanism. The secondary frame is vertically mounted on the traveling mechanism; the secondary lifting transmission mechanism is mounted on the secondary frame, and its power output end can move up and down along the secondary frame; the power output end of the secondary lifting drive unit cooperates with the power input end of the secondary lifting transmission mechanism; the primary frame is connected to the power output end of the secondary lifting transmission mechanism.
4. The vehicle-mounted transfer device according to claim 3, characterized in that, The driving mechanism includes a drive wheel and a driving unit; the drive wheel is disposed on both sides of the secondary frame, and its power input end is connected to the power output end of the driving unit.
5. The vehicle-mounted transfer device according to claim 4, characterized in that, It also includes a control module; the control module includes a control unit, an operation panel, and a remote control handle. The control unit and the operation panel are integrated and arranged on one side of the power module. The control unit is electrically connected to the power module, the first-stage lifting drive unit, the second-stage lifting drive unit, the driving drive unit, the operation panel, and the remote control handle, respectively, and is used to receive instructions from the operation panel and the remote control handle, and control the start and stop of the first-stage lifting drive unit, the second-stage lifting drive unit, and the driving drive unit.
6. The vehicle-mounted transfer device according to claim 3, characterized in that, The shuttle bracket is arranged on both sides of the secondary frame and nested at the bottom of the forks, and a connecting support wheel is provided in the middle.
7. The vehicle-mounted transfer device according to claim 3, characterized in that, A trigger switch is provided at the top of the primary frame; the trigger switch is used to control the start and stop of the secondary lifting drive unit.
8. The vehicle-mounted transfer device according to claim 3, characterized in that, The fork includes a fork body and a fork carriage; the fork is disposed at the front end of the fork carriage; the fork carriage is connected to the power output end of the primary lifting transmission mechanism, and a lifting guide wheel is disposed between the fork carriage and the primary frame.
9. The vehicle-mounted transfer device according to claim 3, characterized in that, A lifting guide wheel is provided between the primary frame and the secondary frame.
10. The vehicle-mounted transfer device according to any one of claims 1 to 9, characterized in that, The connecting pad includes a pad body, a lower hook, and a quick clamp; the lower hook is located at the lower end of the pad body; the quick clamp is foldably located at the upper end of the pad body, and its lower end passes through the pad body and connects to the lower hook.