Electric transfer trolley

Abstract

The invention relates to the technical field of electric transfer vehicles, and provides an electric transfer vehicle which comprises a vehicle body, a winch is fixed to the left side of the top wall of the vehicle body, two vehicle doors are rotatably mounted on the right side of the vehicle body through hinges and connected through a plug pin, and four wheels are symmetrically and rotatably mounted on the side wall of the vehicle body; the inner compartment is arranged between the inner walls of the vehicle body through a lifting mechanism, lifting assemblies are arranged on the two sides of the bottom of the inner compartment, and a driving assembly for driving the lifting assemblies to ascend and descend is arranged in the inner compartment; the bottom plate is arranged at the bottom of the inner compartment in an inserted mode, and the bottom plate is used for supporting borne objects; by means of the technical scheme, the problems that in the prior art, the cargo loading and unloading mode of a traditional electric transfer trolley usually depends on manual carrying or mechanical hoisting, the physical burden of operators cannot be effectively relieved, additional mechanical auxiliary carrying needs to be provided, and the working cost is increased are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric transfer vehicles, and specifically, to an electric transfer vehicle. Background Art

[0002] With the continuous development of the logistics, warehousing, and manufacturing industries, the traditional manual handling method can no longer meet the requirements of efficient, safe, and precise transportation. Especially when handling items with a large weight or volume, manual handling is not only time-consuming and laborious, but also prone to causing personal injuries and damage to goods. Therefore, more and more electric transfer vehicles are widely used in these industries to replace manual handling. Electric transfer vehicles have the advantages of high efficiency, flexibility, energy conservation, and safety, and can efficiently complete the transportation tasks of goods in various complex working environments.

[0003] Existing electric transfer vehicles usually adopt a single driving method and a simple structure. Although they meet the basic needs to a certain extent, there are still certain limitations in improving work efficiency and safety. For example, the cargo loading and unloading method of traditional electric transfer vehicles usually relies on manual handling or mechanical hoisting, which cannot effectively reduce the physical burden of operators and requires additional mechanical auxiliary handling, increasing the work cost. Summary of the Invention

[0004] The present invention provides an electric transfer vehicle, which solves the problem that the cargo loading and unloading method of traditional electric transfer vehicles in related technologies usually relies on manual handling or mechanical hoisting, cannot effectively reduce the physical burden of operators, and requires additional mechanical auxiliary handling, increasing the work cost.

[0005] The technical solution of the present invention is as follows: An electric transfer vehicle, comprising: A vehicle body, on the left side of the top wall of the vehicle body, a winch is fixed; on the right side of the vehicle body, two vehicle doors are rotatably installed through hinges, and the two vehicle doors are connected by a bolt; on the side wall of the vehicle body, four wheels are symmetrically and rotatably installed. An inner compartment, which is installed between the inner walls of the vehicle body through a lifting mechanism; on both sides of the bottom of the inner compartment, lifting components are installed; inside the inner compartment, a driving component for driving the lifting components to lift is installed. A bottom plate, which is inserted into the bottom of the inner compartment and is used to support the object carried.

[0006] Preferably, a driving motor is installed inside the vehicle body corresponding to the position of the wheels, and the power shaft of the driving motor is connected to the corresponding wheel.

[0007] Preferably, installation grooves are formed on both sides of the inner wall of the vehicle body, and the lifting mechanism is installed in the installation grooves.

[0008] Preferably, the lifting mechanism includes symmetrically arranged hydraulic cylinders fixed to the top wall of the installation groove, and connecting plates are fixed to the movable ends at the bottoms of the hydraulic cylinders. The connecting plates are fixed to the side walls of the inner compartment.

[0009] Preferably, the lifting assembly includes a mounting shell with symmetrically fixed sliders on its side walls, and a number of mounting shafts are rotatably installed on the inner wall of the mounting shell. Worms are fixed to the mounting shafts, and the bottom ends of the mounting shafts pass through the bottom wall of the mounting shell through bearings and are fixed with rotating plates. A worm shaft is fixed between the side walls of the inner wall of the mounting shell, and a first motor is fixed to the outside of the mounting shell. The power shaft of the first motor passes through the side wall of the mounting shell through a bearing and is fixedly connected to one end of the worm shaft. A number of worms cooperating with the worms are installed on the worm shaft, and the worms on both sides of the worm shaft are arranged in the opposite direction.

[0010] Preferably, sliding grooves are formed in the bottom wall of the inner compartment corresponding to the positions of the sliders, and the sliders are slidably installed in the sliding grooves.

[0011] Preferably, a T-shaped groove is formed inside the inner compartment, and the driving assembly is installed in the T-shaped groove.

[0012] Preferably, the driving assembly includes a cross plate slidably installed in the T-shaped groove, a connecting column is fixed to the bottom wall of the cross plate corresponding to the position of the sliding groove, and a screw rod is screwed through the center of the cross plate. The bottom end of the connecting column slidably passes through the top wall of the sliding groove and is fixedly connected to the slider. The screw rod is rotatably installed on the top wall of the T-shaped groove, a second motor is arranged at the bottom end of the screw rod, and guide shafts are symmetrically arranged on both sides of the screw rod. The second motor is fixed to the bottom wall of the T-shaped groove, and the power shaft at the top of the second motor is fixedly connected to the bottom end of the screw rod. The guide shafts slidably penetrate through the cross plate and are fixed between the upper and lower walls of the T-shaped groove.

[0013] Preferably, the bottom plate includes a plate body with a number of rollers rotatably installed on the top wall of the plate body, notches are formed on both sides of the plate body corresponding to the positions of the rotating plates, and a handle is fixed to one end of the plate body.

[0014] Preferably, a slot matching the bottom plate is formed at the bottom of the inner compartment, the bottom plate is slidably inserted into the slot, and a through groove matching the bottom plate is formed through the bottom of the left side of the vehicle body.

[0015] The beneficial effects of the present invention are as follows: 1. In the present invention, a liftable inner compartment design is adopted, which, in cooperation with a drive assembly and a lifting assembly, can easily load heavy goods into the carriage without manual handling or crane loading. In this way, not only can the physical strength of the staff be saved, but also the errors and risks of goods damage caused by manual operation can be reduced. Through the designed winch and lifting assembly, the electric transfer vehicle can use mechanical equipment to replace manual handling during the goods loading process, realizing a more efficient and energy-saving goods handling process and reducing the labor intensity of the staff.

[0016] 2. In the present invention, through the vehicle body design and independently driven wheels, it can operate flexibly in various working environments, including narrow spaces or complex transportation routes. The independently driven wheel system enables the electric transfer vehicle to easily perform operations such as steering and reversing to adapt to different working requirements.

[0017] 3. In the present invention, through the setting of multiple designs such as doors, bolts, bottom plates and rotating rollers, the safety of the electric transfer vehicle during the goods transportation process is improved. The door can effectively prevent the goods from falling during transportation, while the setting of the bottom plate and rotating rollers helps to reduce the friction and wear of the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0019] Figure 1 It is a three-dimensional view of the external structure of the present invention in the normal state; Figure 2 It is a three-dimensional view of the external structure of the present invention in the working state; Figure 3 It is a three-dimensional view of the external structure of the vehicle body of the present invention; Figure 4 It is a three-dimensional view of the external structure of the inner compartment of the present invention; Figure 5 It is a three-dimensional view of the semi-sectioned structure of the side wall of the inner compartment of the present invention; Figure 6 It is a three-dimensional view of the structure of the lifting assembly of the present invention; Figure 7 It is a three-dimensional view of the semi-sectioned structure of the lifting assembly of the present invention; Figure 8 It is a three-dimensional view of the structure of the bottom plate of the present invention.

[0020] In the figure: 1. Vehicle body; 2. Winch; 3. Door; 4. Bolt; 5. Hinge; 6. Wheel; 7. Inner compartment; 8. Hydraulic cylinder; 9. Connecting plate; 10. Installation groove; 11. Lifting assembly; 111. Installation shell; 112. Slide block; 113. Installation shaft; 114. Worm gear; 115. Worm shaft; 116. First motor; 117. Rotating plate; 12. Chute; 13. Driving assembly; 131. Cross plate; 132. Connecting column; 133. Screw; 134. Second motor; 135. Guide shaft; 14. T-shaped groove; 15. Slot; 16. Bottom plate; 161. Plate body; 162. Roller; 163. Notch; 164. Handle; 17. Through groove. Detailed implementation mode

[0021] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0022] Embodiment 1 As Figures 1 to 4 shown, this embodiment proposes: An electric transfer vehicle, comprising: Vehicle body 1: The vehicle body 1 is made of high-strength alloy steel, with strong compressive capacity and stability. A winch 2 is fixed on the left side of the top wall of the vehicle body 1, which is used to drag large objects or move items between the transfer vehicle and the ground. Two doors 3 are rotatably installed on the right side of the vehicle body 1 through hinges 5, and the doors can be conveniently opened and closed through bolts 4 to ensure the safety of the goods during the transfer process. Four wheels 6 are symmetrically installed on the side wall of the vehicle body 1. The wheels 6 are made of wear-resistant rubber material, which can effectively reduce friction and extend the service life.

[0023] Inner compartment 7: The inner compartment 7 is installed between the inner walls of the vehicle body 1 through a lifting mechanism. The inner compartment 7 can move up and down to facilitate the loading and unloading of goods. Lifting assemblies 11 are installed on both sides of the bottom of the inner compartment 7. The main function of the lifting assemblies 11 is to conveniently place the box goods into the inner compartment 7, reducing the dependence on manual labor. A driving assembly 13 for driving the lifting of the lifting assemblies 11 is also installed in the inner compartment 7.

[0024] Bottom plate 16: The bottom plate is inserted into the bottom of the inner compartment 7 to play a supporting role. The bottom plate 16 is made of high-strength alloy plate and can carry heavy goods.

[0025] Drive motor and wheels 6: Each wheel 6 is driven by a separate drive motor. The steering system of the electric transporter is controlled by independent wheel drive motors, enabling precise operations such as steering, forward movement, or reverse movement to adapt to different working environments. The drive system of the wheels has a high power output, allowing the electric transporter to operate efficiently and stably under various loads.

[0026] In this embodiment, by arranging a liftable inner compartment 7 on the inner wall of the vehicle body 1, it can greatly save the physical strength of the staff when loading goods into the electric transporter. Through the arranged drive assembly 13 cooperating with the lifting assembly 11, when loading a large box-shaped cargo, the cargo can be directly loaded into the inner compartment 7 without manual handling or setting up a crane. The operation is simple and convenient. The arranged bottom plate 16 can cooperate with the inner compartment 7 to load the goods. The arranged door 3 can enclose the inner compartment 7 to prevent the loaded goods from falling. The arranged bolt 4 can facilitate the opening and closing of the door 3. The wheels 6 are respectively driven by separately arranged drive motors, which can facilitate operations such as steering or reverse movement of the electric transporter. The arranged winch 2 can conveniently drag some large goods directly onto the bottom plate 16 when the inner compartment 7 moves to the ground, thus saving the physical strength of the staff.

[0027] Embodiment 2 As Figures 3 to 4 shown, based on the same concept as the above Embodiment 1, this embodiment also proposes: Installation grooves 10 are provided on both sides of the inner wall of the vehicle body 1, and the lifting mechanism is installed in the installation grooves 10.

[0028] The lifting mechanism includes symmetrically arranged hydraulic cylinders 8, the hydraulic cylinders 8 are fixed on the top wall of the installation groove 10, and connecting plates 9 are fixed to the movable ends at the bottom of the hydraulic cylinders 8; The connecting plates 9 are fixed to the side walls of the inner compartment 7.

[0029] In this embodiment, the arranged lifting mechanism can facilitate the up and down movement of the inner compartment 7, thus facilitating the loading of goods. When it is necessary to lower the inner compartment 7 to the ground, control the hydraulic cylinders 8 to extend. The hydraulic cylinders 8 drive the inner compartment 7 to move downward through the arranged connecting plates 9, thereby driving the inner compartment 7 to move down to the ground position for loading goods.

[0030] Embodiment 3 As Figures 3 to 8 shown, based on the same concept as the above Embodiment 1, this embodiment also proposes: The lifting assembly 11 includes an installation shell 111, symmetrically fixed sliders 112 are provided on the side wall of the installation shell 111, and a plurality of installation shafts 113 are rotatably installed on the inner wall of the installation shell 111; Worms 114 are fixed on the installation shafts 113, and the bottom ends of the installation shafts 113 pass through the bottom wall of the installation shell 111 through bearings and are fixed with rotating plates 117; A worm shaft 115 is fixed between the inner side walls of the installation shell 111, and a first motor 116 is fixed outside the installation shell 111; The power shaft of the first motor 116 passes through the side wall of the installation shell 111 through a bearing and is fixedly connected to one end of the worm shaft 115; A number of worms cooperating with the worm wheel 114 are installed on the worm shaft 115, and the worms on both sides of the worm shaft 115 are arranged in opposite directions.

[0031] A chute 12 is opened on the bottom wall of the inner compartment 7 corresponding to the position of the slider 112, and the slider 112 is slidably installed in the chute 12.

[0032] A T-shaped groove 14 is opened inside the inner compartment 7, and the drive assembly 13 is installed in the T-shaped groove 14.

[0033] The drive assembly 13 includes a cross plate 131, the cross plate 131 is slidably installed in the T-shaped groove 14, a connecting column 132 is fixed to the bottom wall of the cross plate 131 corresponding to the position of the chute 12, and a screw 133 is screwed through the center of the cross plate 131; The bottom end of the connecting column 132 slidably penetrates the top wall of the chute 12 and is fixedly connected to the slider 112; The screw 133 is rotatably installed on the top wall of the T-shaped groove 14, a second motor 134 is arranged at the bottom end of the screw 133, and guide shafts 135 are symmetrically arranged on both sides of the screw 133; The second motor 134 is fixed on the bottom wall of the T-shaped groove 14, and the power shaft at the top of the second motor 134 is fixedly connected to the bottom end of the screw 133; The guide shaft 135 slidably penetrates the cross plate 131, and the guide shaft 135 is fixed between the upper and lower walls of the T-shaped groove 14.

[0034] The bottom plate 16 includes a plate body 161, a number of roller 162 are rotatably installed on the top wall of the plate body 161, notches 163 are opened on both sides of the plate body 161 corresponding to the position of the rotating plate 117, and a handle 164 is fixed at one end of the plate body 161.

[0035] A slot 15 matching the bottom plate 16 is opened at the bottom of the inner compartment 7, the bottom plate 16 is slidably inserted into the slot 15, and a through groove 17 matching the bottom plate 16 is penetrated and opened at the bottom left of the vehicle body 1.

[0036] In this embodiment, the driving component 13 and the lifting component 11 are arranged to directly load the box goods with a large weight into the inner compartment 7 when loading, without manual handling or setting up a crane, and the operation is simple and convenient. In the initial state, the rotating plate 117 deflects to the bottom position of the mounting shell 111. When the lifting component 11 needs to be used, first pull the handle 164, pull out the bottom plate 16 from the through slot 17 until the bottom plate 16 disengages from the slot 15, and open the door 3. At this time, control the hydraulic cylinder 8 to extend, and the hydraulic cylinder 8 drives the inner compartment 7 to move down to the ground position. Then control the electric transfer vehicle to move so that the inner compartment 7 moves and sleeves outside the box goods with a large weight. Then control the first motor 116 to work. The first motor 116 drives the worm shaft 115. During the rotation of the worm shaft 115, the installation shaft 113 is driven to rotate through the worm wheel 114, and then the rotating plate 117 is driven to rotate under the bottom wall of the box goods (generally, support blocks are provided at the bottom of the box goods, so there is a certain height difference between its bottom wall and the ground). Then control the second motor 134 to work. The second motor 134 drives the screw 133 to rotate. During the rotation of the screw 133, the cross plate 131 is driven to move upward. During the upward movement of the cross plate 131, the lifting component 11 is driven to move upward through the connecting column 132, so as to lift the box goods into the inner compartment 7 and ensure that the rotating plate 117 is located above the slot 15. Then control the hydraulic cylinder 8 to contract, and the hydraulic cylinder 8 drives the inner compartment 7 to move upward until the through slot 17 position corresponds to the slot 15 position. Insert the bottom plate 16 back into the slot 15, control the second motor 134 to reverse, place the box goods on the bottom plate 16, and finally control the first motor 116 to reverse so that the rotating plate 117 resets to the bottom position of the mounting shell 111, completing the loading of the box goods.

[0037] When loading large goods that cannot pass through the lifting component 11, only need to control the hydraulic cylinder 8 to drive the inner compartment 7 to move down to the ground position, and pull the large goods from the right side of the inner compartment 7 to the bottom plate 16 through the provided winch 2. The rotating rollers 162 provided on the bottom plate 16 can reduce the friction force when pulling the goods. On the one hand, it reduces the wear of the bottom plate 16 and the goods, and on the other hand, it can reduce the energy consumption of the winch 2.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric transport vehicle, characterized in that: include: A vehicle body (1), a winch (2) being fixed to the left side of the top wall of the vehicle body (1), two vehicle doors (3) being rotatably mounted on the right side of the vehicle body (1) via hinges (5), the two vehicle doors (3) being connected via latches (4), and four wheels (6) being symmetrically rotatably mounted on the side walls of the vehicle body (1); An inner compartment (7), the inner compartment (7) being installed between inner walls of the vehicle body (1) via a lifting mechanism, lifting components (11) being installed on both sides of the bottom of the inner compartment (7), and a driving component (13) for driving the lifting component (11) to move up and down being installed inside the inner compartment (7); A bottom plate (16), the bottom plate (16) being inserted into the bottom of the inner compartment (7), the bottom plate (16) being used to support the object being carried.

2. The electric transport vehicle according to claim 1, characterized in that: A drive motor is installed inside the vehicle body (1) at a position corresponding to the wheel (6), and a power shaft of the drive motor is connected to the corresponding wheel (6).

3. The electric transport vehicle according to claim 1, characterized in that: Both sides of the inner wall of the vehicle body (1) are provided with mounting grooves (10), and the lifting mechanism is installed in the mounting grooves (10).

4. The electric transport vehicle according to claim 3, characterized in that: The lifting mechanism comprises symmetrically arranged hydraulic cylinders (8), the hydraulic cylinders (8) being fixed on the top wall of the mounting groove (10), and the movable ends at the bottoms of the hydraulic cylinders (8) being fixed with connecting plates (9); The connecting plate (9) is fixed on the side wall of the inner compartment (7).

5. The electric transport vehicle according to claim 1, characterized in that: The lifting assembly (11) comprises a mounting shell (111), a side wall of the mounting shell (111) is symmetrically fixed with sliders (112), and an inner wall of the mounting shell (111) is rotatably mounted with a plurality of mounting shafts (113); A worm gear (114) is fixed on each of the installation shafts (113); the bottom end of the installation shaft (113) passes through the bottom wall of the installation shell (111) via a bearing and is fixed with a rotating plate (117); A worm shaft (115) is fixed between the inner wall and the side wall of the mounting shell (111), and a first motor (116) is fixed outside the mounting shell (111); The power shaft of the first motor (116) passes through the side wall of the mounting shell (111) through a bearing and is fixedly connected to one end of the worm shaft (115); A plurality of worms matching the worm wheel (114) are mounted on the worm shaft (115), and the worms on both sides of the worm shaft (115) are arranged in opposite directions.

6. The electric transport vehicle according to claim 5, characterized in that: A slide groove (12) is provided on the bottom wall of the inner compartment (7) at a position corresponding to the slide block (112), and the slide block (112) is slidably mounted in the slide groove (12).

7. The electric transport vehicle according to claim 6, characterized in that: A T-shaped slot (14) is provided inside the inner compartment (7), and the drive assembly (13) is installed in the T-shaped slot (14).

8. The electric transport vehicle according to claim 7, characterized in that: The driving assembly (13) comprises a transverse plate (131), the transverse plate (131) being slidably mounted in the T-shaped slot (14), a connecting column (132) being fixed at a position of a bottom wall of the transverse plate (131) corresponding to the slide slot (12), and a screw rod (133) being threadedly connected and penetrated through the center of the transverse plate (131); The bottom end of the connecting column (132) slides through the top wall of the sliding groove (12) and is fixedly connected to the sliding block (112); The screw rod (133) is rotatably mounted on the top wall of the T-shaped slot (14); a second motor (134) is disposed at the bottom end of the screw rod (133); and guide shafts (135) are symmetrically disposed on both sides of the screw rod (133); The second motor (134) is fixed on the bottom wall of the T-shaped slot (14), and the power shaft at the top of the second motor (134) is fixedly connected to the bottom end of the screw rod (133); The guide shaft (135) slides through the transverse plate (131), and the guide shaft (135) is fixed between the upper and lower walls of the T-shaped slot (14).

9. The electric transport vehicle according to claim 5, characterized in that: The bottom plate (16) comprises a plate body (161), a plurality of rollers (162) are rotatably mounted on the top wall of the plate body (161), notches (163) are provided on both sides of the plate body (161) at positions corresponding to the rotating plate (117), and a handle (164) is fixed at one end of the plate body (161).

10. The electric transport vehicle according to claim 9, characterized in that: The bottom of the inner compartment (7) is provided with a slot (15) which matches the bottom plate (16); the bottom plate (16) is slidably inserted into the slot (15); and a through slot (17) which matches the bottom plate (16) is penetrated through the bottom of the left side of the vehicle body (1).

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