Outdoor loading and unloading machine

Abstract

The utility model belongs to the technical field of logistics transfer equipment, and particularly relates to a field loading and unloading machine which comprises a traveling mechanism, a track, a lifting platform, a power unit and a frame. The traveling mechanism is arranged at the lower part of the loading and unloading machine, is fixed on the frame and is used for driving the loading and unloading machine to travel and steer; the track is detachably arranged on the lower portion of the frame and used for assisting loading and unloading of the loading and unloading machine. The lifting platform is arranged on the upper portion of the frame, has a lifting state and a carrying state and is matched with the manual pallet truck to be used for loading and unloading materials; the power unit is fixed to the frame, electrically connected with the traveling mechanism and the lifting platform and used for providing power for the loading and unloading machine. The frame is used for bearing the traveling mechanism, the rail, the lifting platform and the power unit. The utility model aims to solve the safety problems of manpower and time consumption, personnel injury, material damage and the like caused by manual or manual mechanical transfer in a field environment.

Description

Technical Field

[0001] This utility model belongs to the technical field of logistics transfer equipment, and in particular relates to a field loading and unloading machine. Background Technology

[0002] The transfer of goods from trucks to sites or vice versa is a crucial step in the logistics process, often requiring the use of forklifts. However, in field environments, such as rescue operations, emergency repairs, or other field missions, forklifts are often unavailable. Therefore, goods transfer in the field typically relies on manual labor or manual machinery; this inevitably leads to wasted manpower and time, and may even result in safety issues such as injuries and damage to goods.

[0003] In view of the above situation, there is an urgent need for equipment suitable for the transfer of supplies in the field. Utility Model Content

[0004] This utility model provides an electrically driven field loading and unloading machine, featuring small size, large load capacity, and remote control capability. It transports supplies along with other materials, enabling material transfer in field environments. This solves the problems of high manpower and time consumption, as well as safety issues such as personnel injury and material damage associated with material transfer in field environments. Details are as follows:

[0005] A field loading and unloading machine, equipped with a manual flatbed trailer, includes a running mechanism, rails, a lifting platform, a power unit, and a frame;

[0006] The driving mechanism is located at the lower part of the loading and unloading machine and fixed on the frame, and is used to drive the loading and unloading machine to travel and steer.

[0007] The track is detachably installed at the lower part of the frame to assist the loading and unloading machine in loading and unloading.

[0008] The lifting platform is located on the upper part of the frame and has a lifting state and a carrying state. It is used in conjunction with the manual flatbed truck for loading and unloading materials.

[0009] The power unit is fixed on the frame and electrically connected to the travel mechanism and the lifting platform, and is used to provide power to the loading and unloading machine;

[0010] The frame is used to support the traveling mechanism, track, lifting platform and power unit.

[0011] Furthermore, the driving mechanism includes: a driving unit, a driving transmission unit, and driving wheels;

[0012] The output end of the driving unit is connected to the input end of the driving transmission unit and is electrically connected to the power unit.

[0013] The output end of the driving transmission unit is connected to the drive wheel.

[0014] Furthermore, there are at least two drive wheels, which are respectively installed on both sides of the frame; the number of driving drive units and driving transmission units is the same as the number of drive wheels; the output end of each driving drive unit is connected to the input end of the driving transmission unit; the output end of each driving transmission unit is connected to the drive wheel.

[0015] Furthermore, the drive wheels are made of solid all-terrain tires.

[0016] Furthermore, the loading and unloading machine also includes a control unit mounted on the frame and a remote control handle wirelessly connected to the control unit; the control unit is electrically connected to the power unit, the travel mechanism and the lifting platform respectively.

[0017] Furthermore, the lifting platform includes: a lifting drive unit, a lifting transmission unit, and a support platform;

[0018] The output end of the lifting drive unit is connected to the input end of the lifting transmission unit and is electrically connected to the power unit.

[0019] The output end of the lifting transmission unit is connected to the support platform.

[0020] Furthermore, the lifting transmission unit includes a nut, a lead screw, an upper slide rail, a lower slide rail, and a scissor linkage mechanism;

[0021] The lead screw is rotatably supported on the frame, with its input end connected to the output end of the lifting drive unit and its output end connected to the nut set.

[0022] The upper slide rail is fixed to the lower end face of the support platform; the lower slide rail is fixed to the frame.

[0023] The scissor linkage mechanism has an upper fixed end hinged to the lower end face of the support platform, an upper movable end slidably connected to the upper slide rail, a lower fixed end hinged to the frame, and a lower movable end slidably connected to the lower slide rail and hinged to the nut.

[0024] Furthermore, there are two tracks, both of which are foldable.

[0025] Furthermore, collision sensing devices are provided at both the front and rear ends of the frame; the collision sensing devices include anti-collision beams installed at both the front and rear ends of the frame, and collision sensors disposed between the anti-collision beams and the frame; the collision sensors are electrically connected to the power unit, and can disconnect the circuit between the power unit and the driving mechanism when a collision occurs.

[0026] The beneficial effects of this utility model are:

[0027] 1. By setting up tracks, loading and unloading machines can be loaded and unloaded onto trucks under power, eliminating the trouble of manual handling and reducing safety hazards; and enabling loading and unloading machines to be transported with trucks, facilitating the loading, unloading and transfer of goods in the absence of forklifts or other machinery.

[0028] 2. The installation of a driving mechanism and lifting platform enables the loading and unloading machine to carry materials for transfer, solving the problems of manpower and time consumption, as well as safety issues such as personnel injury and material damage caused by manual or manual mechanical transfer in the field. Attached Figure Description

[0029] 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.

[0030] Figure 1 Here is a schematic diagram of the overall structure of the loading and unloading machine in its field operation mode.

[0031] Figure 2 Here is a schematic diagram of the overall structure under the lifting condition of a field loading and unloading machine;

[0032] Figure 3 For example: a schematic diagram of the traveling mechanism of a field loading and unloading machine;

[0033] Figure 4 Here is a schematic diagram of the structure of a field loading and unloading machine lifting platform;

[0034] Figure 5 For example: a schematic diagram of loading and unloading a loading and unloading machine in the field;

[0035] In the diagram: A. Manual trailer; 1. Traveling mechanism; 101. Traveling drive unit; 102. Traveling transmission unit; 103. Drive wheel; 2. Rail; 3. Lifting platform; 301. Lifting drive unit; 302. Lifting transmission unit; 303. Loading platform; 304. Nut; 305. Lead screw; 306. Upper slide rail; 307. Lower slide rail; 308. Scissor linkage mechanism; 309. Maintenance outrigger; 4. Power unit; 5. Frame; 501. Anti-collision beam. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] Please refer to Figures 1-5 To better understand the specific structure of this utility model, a field loading and unloading machine, such as... Figure 1 As shown, the manual trailer A includes a driving mechanism 1, a track 2, a lifting platform 3, a power unit 4, and a frame 5.

[0041] The driving mechanism 1, such as Figure 2 As shown, it is located at the lower part of the loading and unloading machine and fixed on the frame 5, and is used to drive the loading and unloading machine to travel and steer;

[0042] The track 2 is detachably installed at the lower part of the frame 5 to assist the loading and unloading machine in loading and unloading.

[0043] The lifting platform 3, as Figure 2 As shown, it is set on the upper part of the frame 5 and has a lifting state and a carrying state. It is used in conjunction with the manual trailer A for loading and unloading materials.

[0044] The power unit 4 is fixed on the frame 5 and electrically connected to the travel mechanism 1 and the lifting platform 3, and is used to provide power to the loading and unloading machine;

[0045] The frame 5 is used to support the driving mechanism 1, the track 2, the lifting platform 3 and the power unit 4.

[0046] It should be noted that the power unit 4 preferably includes two 48V high-capacity lithium batteries to ensure longer battery life.

[0047] It should be noted that the equipped manual pallet truck A is preferably a manual hydraulic forklift (commonly known as a pallet jack), but other types of tools can also be matched, which is not limited here. The purpose is to transfer the materials in the truck bed to the lifting platform 3 of the loading and unloading machine.

[0048] It should be noted that frame 5 is a rectangular structure, and the four sides are preferably made of channel steel welded together. A crossbeam can be set in the middle to increase the overall strength.

[0049] It should be noted that the lifting state refers to the lifting platform 3 rising to the same height as the carriage, at which point materials can be moved from the carriage to the lifting platform 3, or from the lifting platform 3 to the carriage; the transport state refers to the loading and unloading machine carrying materials and moving into the warehouse or truck, at which point the lifting platform 3 descends to its lowest point, and the lifting platform 3 carries materials (or can be empty).

[0050] In practice, by setting up track 2, the loading and unloading machine can be loaded and unloaded by the truck under power drive, eliminating the trouble of manual handling and reducing safety hazards; it also enables the loading and unloading machine to be transported with the truck, which is convenient for loading, unloading and transferring materials in the absence of forklifts or other machinery; by setting up driving mechanism 1 and lifting platform 3, the loading and unloading machine can carry materials to complete the transfer work, which solves the problems of manpower and time consumption, as well as safety issues such as personnel injury and material damage caused by manual or manual mechanical transfer in the field environment.

[0051] In the embodiments provided by this utility model, such as Figure 3 As shown, the driving mechanism 1 includes: a driving unit 101, a driving transmission unit 102, and a driving wheel 103;

[0052] The output end of the driving unit 101 is connected to the input end of the driving transmission unit 102 and is electrically connected to the power unit 4.

[0053] The output end of the driving transmission unit 102 is connected to the drive wheel 103.

[0054] There are at least two drive wheels 103, which are respectively installed on both sides of the frame 5; the number of driving drive units 101 and driving transmission units 102 is the same as the number of drive wheels 103; the output end of each driving drive unit 101 is connected to the input end of the driving transmission unit 102; the output end of each driving transmission unit 102 is connected to the drive wheel 103.

[0055] The drive wheel 103 is equipped with solid all-terrain tires;

[0056] The loading and unloading machine also includes a control unit (not shown in the figure) mounted on the frame 5 and a remote control handle (not shown in the figure) wirelessly connected to the control unit; the control unit is electrically connected to the power unit 4, the travel mechanism 1 and the lifting platform 3 respectively.

[0057] It should be noted that the present invention preferably has four drive wheels 103, each drive wheel 103 is equipped with a driving drive unit 101 and a driving transmission unit 102, which can realize four-wheel drive driving.

[0058] It should be noted that the driving unit 101 is preferably in the form of a stepper motor and is fixed to the frame 5 by a bracket; each driving unit 101, driven by the power unit 4, can be independently controlled by the control unit to increase or decrease the speed and switch the direction of rotation.

[0059] It should be noted that the driving transmission unit 102 preferably adopts a planetary gear reduction mechanism, the input shaft is connected to the output shaft of the driving drive unit 101, the housing of the driving transmission unit 102 is fixed on the frame 5 by a bracket, and the output shaft is connected to the drive wheel 103.

[0060] It should be noted that the control unit is preferably a PLC (PLC is the abbreviation for Programmable Logic Controller), but it can also be a circuit including at least one processor, a circuit including at least one microcontroller, or 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 achieve the corresponding function in a purely hardware manner. The remote control handle can be used to control the movement of the loading and unloading machine and the raising and lowering of the lifting platform 3.

[0061] In practical implementation, the use of an independently driven 4-wheel drive structure 103 improves the off-road performance of the loading and unloading machine, enabling better material transfer in the field. The independently controlled 4-wheel drive structure 103 enhances maneuverability, allowing the loading and unloading machine to rotate 360° on the spot, which is beneficial for material transfer in the field. The drive transmission unit 102 adopts a planetary gear reduction mechanism, which can reliably reduce the motor speed, thereby meeting the speed requirements for material transfer in the field. The remote control function enables remote control, reducing personnel safety hazards. The use of solid all-terrain tires allows for better adaptation to field terrain, eliminating the need for tire repair and inflation, which is beneficial for material transfer.

[0062] In one implementation, such as Figure 4 As shown, the lifting platform 3 includes: a lifting drive unit 301, a lifting transmission unit 302, and a support platform 303;

[0063] The output end of the lifting drive unit 301 is connected to the input end of the lifting transmission unit 302 and is electrically connected to the power unit 4.

[0064] The output end of the lifting transmission unit 302 is connected to the support platform 303.

[0065] The lifting transmission unit 302 includes a nut 304, a lead screw 305, an upper slide rail 306, a lower slide rail 307, and a scissor linkage mechanism 308;

[0066] The lead screw 305 is rotatably supported on the frame 5, with its input end connected to the output end of the lifting drive unit 301 and its output end fitted with the nut 304.

[0067] The upper slide rail 306 is fixed to the lower end face of the support platform 303, preferably by screws; the lower slide rail 307 is fixed to the frame 5, preferably by screws.

[0068] The scissor linkage mechanism 308 has its upper fixed end hinged to the lower end face of the support platform 303, its upper movable end slidably connected to the upper slide rail 306, its lower fixed end hinged to the frame 5, and its lower movable end slidably connected to the lower slide rail 307 and hinged to the nut 304.

[0069] It should be noted that the lifting drive unit 301 is preferably a stepper motor structure, the motor output shaft is connected to the output end of the lifting transmission unit 302, and is fixed on the frame 5 by a bracket, and is electrically connected to the power unit 4 and the control unit respectively.

[0070] It should be noted that the lead screw is connected to the output shaft of the lifting drive unit 301 at one end and is driven to rotate by the lifting drive unit 301, while the other end is supported on the frame 5 by a bearing; the nut 304 is fitted on the lead screw 305 and can move along the axial direction of the lead screw 305. It is externally hinged to the lower movable end of the scissor linkage mechanism 308 and drives the lower movable end of the scissor linkage mechanism 308 to move back and forth.

[0071] It should be noted that preferably two sets of scissor linkage mechanisms 308 are set on both sides of the frame 5. The hinge points in the middle of the two sets of scissor linkage mechanisms 308 are interconnected by connecting rods to provide stable support. The scissor linkage mechanism 308 is preferably made of steel. The upper fixed end and the upper movable end are the output ends of the lifting transmission unit 302. A rotatable maintenance support leg 309 is installed between the middle hinge point and the lower movable end.

[0072] It should be noted that the upper slide rail 306 and the lower slide rail 307 are respectively fixed to the lower end face of the support platform 303 and the frame 5 by screws.

[0073] It should be noted that when the lifting platform 3 is in the transport state, the scissor linkage mechanism 308 is in the folded state, and the lifting platform 3 is at its lowest point. When it is necessary to lift materials in the carriage, the lifting drive unit 301 drives the lead screw 305 to rotate, which in turn drives the nut 304 to move axially along the lead screw 305. The nut 304 drives the lower movable end of the scissor linkage mechanism 308 to move along the lower slide rail 307, while the lower fixed end only rotates around the hinge point. At this time, the scissor linkage mechanism 308 gradually transitions from the folded state to the unfolded state of the lifting state. The movable end moves along the upper slide rail 306, while the upper fixed end rotates only around the hinge point; thereby driving the lifting platform 3 to rise upwards; when the lifting height reaches the height of the carriage, the lifting drive unit 301 can be controlled to stop operating; the materials in the carriage are transferred to the lifting platform 3 by the manual trolley A, the manual trolley A is withdrawn, the lifting drive unit 301 is controlled to reverse, the scissor linkage mechanism 308 moves in the opposite direction, driving the lifting platform 3 and the materials to descend to the lowest point and then stop operating; then, the travel drive unit 101 is controlled to operate to transfer the materials to the target location.

[0074] In practice, the scissor linkage mechanism 308 is set up to reduce the height of the equipment when it is retracted, making it more stable when transferring materials and providing sufficient support, thus increasing the load-bearing capacity of the loading and unloading machine; the maintenance outrigger 309 is used to provide support and stability when the loading and unloading machine is being maintained in a lifted state, ensuring the safety of maintenance personnel.

[0075] In the embodiments provided by this utility model, such as Figure 5 As shown, there are two tracks 2, both of which are foldable structures.

[0076] It should be noted that the track 2 is preferably made of steel and is used to assist the loading and unloading machine in loading and unloading the truck bed. When the loading and unloading machine needs to be moved from the truck bed to the ground, it does not need to be moved by manpower. The track 2 can be laid between the truck bed and the ground to form a ramp. The staff can control the loading and unloading machine to travel along the track 2 to the ground and get on the truck. When the track 2 is not in use, the track 2 can be folded and inserted into the placement rack under the frame 5.

[0077] In practice, the installation of track 2 allows the loading and unloading machine to load and unload itself onto and off the truck bed. This not only solves the problem of the lack of forklifts in the freight yard by transporting the loading and unloading machine with the truck, but also saves the physical labor of personnel and reduces safety risks.

[0078] In one implementation, such as Figure 3 As shown, collision sensing devices are provided at both the front and rear ends of the frame 5; the collision sensing devices include anti-collision beams 501 installed at both the front and rear ends of the frame 5, and a collision sensor (not shown in the figure) disposed between the anti-collision beams 501 and the frame 5; the collision sensor is electrically connected to the power unit 4, and can disconnect the circuit between the power unit 4 and the driving mechanism 1 when a collision occurs.

[0079] It should be noted that the anti-collision beam 501 is preferably made of channel steel profile and is preferably fixed to the front and rear ends of the frame 5 by welding. One end of the collision sensor is connected to the frame 5, and the other end is connected to the anti-collision beam 501. The collision sensor, also known as a collision switch or collision detector, is a sensor used to detect the collision or impact of objects. This utility model preferably uses a pressure-type collision sensor, which is a common collision sensor based on the principle of pressure sensors. When an object hits the sensor, the sensor is subjected to pressure, which is converted into an electrical signal. This electrical signal is transmitted to the PLC of the control unit for identification and processing. When the loading and unloading machine encounters an object while moving, the anti-collision beam 501 will undergo slight deformation due to the impact, thereby triggering the collision sensor to emit a signal. The PLC receives the signal, processes it, and sends a command to the power unit 4 to stop the power supply, so the loading and unloading machine stops moving.

[0080] In practice, the installation of collision sensing devices can prevent the loading and unloading machine from colliding with objects and causing accidents, thereby improving the material transfer work and enhancing safety performance.

[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 field loading and unloading machine, equipped with a manual flatbed trailer, characterized in that, Includes the driving mechanism, tracks, lifting platform, power unit, and frame; The driving mechanism is located at the lower part of the loading and unloading machine and fixed on the frame, and is used to drive the loading and unloading machine to travel and steer. The track is detachably installed at the lower part of the frame to assist the loading and unloading machine in loading and unloading. The lifting platform is located on the upper part of the frame and has a lifting state and a carrying state. It is used in conjunction with the manual flatbed truck for loading and unloading materials. The power unit is fixed on the frame and electrically connected to the travel mechanism and the lifting platform, and is used to provide power to the loading and unloading machine; The frame is used to support the traveling mechanism, track, lifting platform and power unit.

2. The field loading and unloading machine according to claim 1, characterized in that, The driving mechanism includes: a driving unit, a driving transmission unit, and driving wheels; The output end of the driving unit is connected to the input end of the driving transmission unit and is electrically connected to the power unit. The output end of the driving transmission unit is connected to the drive wheel.

3. The field loading and unloading machine according to claim 2, characterized in that, There are at least two drive wheels, which are respectively installed on both sides of the frame; the number of driving drive units and driving transmission units is the same as the number of drive wheels; the output end of each driving drive unit is connected to the input end of the driving transmission unit; the output end of each driving transmission unit is connected to the drive wheel.

4. The field loading and unloading machine according to claim 3, characterized in that, The drive wheels are equipped with solid all-terrain tires.

5. The field loading and unloading machine according to claim 1, characterized in that, The loading and unloading machine also includes a control unit mounted on the frame and a remote control handle wirelessly connected to the control unit; the control unit is electrically connected to the power unit, the travel mechanism and the lifting platform respectively.

6. The field loading and unloading machine according to claim 1, characterized in that, The lifting platform includes: a lifting drive unit, a lifting transmission unit, and a support platform; The output end of the lifting drive unit is connected to the input end of the lifting transmission unit and is electrically connected to the power unit. The output end of the lifting transmission unit is connected to the support platform.

7. The field loading and unloading machine according to claim 6, characterized in that, The lifting transmission unit includes a nut, a lead screw, an upper slide rail, a lower slide rail, and a scissor linkage mechanism; The lead screw is rotatably supported on the frame, with its input end connected to the output end of the lifting drive unit and its output end connected to the nut set. The upper slide rail is fixed to the lower end face of the support platform; The lower rail is fixed to the frame; The scissor linkage mechanism has an upper fixed end hinged to the lower end face of the support platform, an upper movable end slidably connected to the upper slide rail, a lower fixed end hinged to the frame, and a lower movable end slidably connected to the lower slide rail and hinged to the nut.

8. The field loading and unloading machine according to claim 1, characterized in that, There are two tracks, both of which are foldable.

9. The field loading and unloading machine according to claim 1, characterized in that, The frame is equipped with collision sensing devices at both the front and rear ends; the collision sensing devices include anti-collision beams installed at the front and rear ends of the frame, and collision sensors disposed between the anti-collision beams and the frame; the collision sensors are electrically connected to the power unit, and can disconnect the circuit between the power unit and the driving mechanism when a collision occurs.

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