A transport trolley for use in a port

Abstract

The utility model belongs to the field of port transportation technology, concretely relates to a kind of transport trolley for port freight, including car base, the car base bottom is equipped with wheel assembly, car base one end is equipped with steering device, steering device one side is equipped with first spring, the car base upper side is equipped with electric hydraulic cylinder, electric hydraulic cylinder upper side is equipped with freight box, freight box top is hinged with car cover, freight box inner bottom is equipped with in-box shock-absorbing component, in-box shock-absorbing component upper side is equipped with crosspiece, freight box lower side is equipped with inclination sensor, inclination sensor lower side is equipped with battery, the utility model is linked electric hydraulic cylinder by inclination sensor, real-time adjustment freight box level, avoid gradient road surface goods deviation slide, improve transportation safety, the pressure sensor of movable connecting block real-time monitoring load, trigger early warning when overload, avoid shock and drive component overload damage.

Description

Technical Field

[0001] This utility model belongs to the field of port transportation technology, specifically relating to a port cargo transport vehicle. Background Technology

[0002] In port cargo transportation operations, trolleys are typically used for short-distance cargo transfers. Existing trolleys suffer from the following problems: inadequate shock absorption structures, relying solely on simple wheel damping, making them susceptible to damage from bumpy port surfaces; lack of automatic leveling functions, and absence of cargo level and load monitoring capabilities; the diverse types of cargo transported at ports, ranging in weight from tens to hundreds of kilograms, and the frequent traversal of sloping areas such as wharf ramps and loading / unloading platform connections, making trolley tilting during transport prone to cargo shifting, slipping, and even accidents. Therefore, there is an urgent need for a trolley that is based on existing infrastructure and meets the specific needs of port cargo transfers. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a port cargo transport trolley to solve the problems in the background technology.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A port cargo transport trolley includes a base, a wheel assembly at the bottom of the base, a steering device at one end of the base, a first spring on one side of the steering device, an electric hydraulic cylinder on the upper side of the base, a cargo box on the upper side of the electric hydraulic cylinder, a cover hinged to the top of the cargo box, an internal shock absorption assembly at the bottom of the cargo box, a cross plate on the upper side of the internal shock absorption assembly, a tilt sensor on the lower side of the cargo box, and a battery on the lower side of the tilt sensor.

[0005] Furthermore, the wheel assembly includes a swivel front wheel connected to the steering device and a rear wheel fixedly connected to one end of the vehicle base.

[0006] Furthermore, the steering device includes a fixed cylinder fixedly connected to one end of the vehicle base, a rotating rod rotatably connected inside the fixed cylinder, a handle at the top of the rotating rod, a push rod at the bottom of the rotating rod, and connecting rods at both ends of the push rod.

[0007] Furthermore, the internal shock absorption assembly includes a lower bottom plate fixedly connected to the inner wall of the cargo box, a damper is provided on the upper side of the lower bottom plate, a shock absorption spring is provided on the outer side of the damper, and an upper support plate is provided on the upper side of the shock absorption spring. The upper side of the upper support plate is fixedly connected to the horizontal plate.

[0008] Furthermore, the handle is provided with anti-slip texture, and the connecting rod is fixedly connected to the omnidirectional shock-absorbing front wheel.

[0009] Furthermore, the electric hydraulic cylinder is provided with four cylinders, which are evenly distributed on both sides of the cargo box. The top of the hydraulic cylinder is provided with a movable connecting block, which is fixedly connected to the cargo box. A pressure sensor is provided on the movable connecting block.

[0010] Furthermore, the tilt sensor is electrically connected to the controller, one side of the first spring is connected to the vehicle base, and the other side of the first spring is connected to the bottom of the cargo box.

[0011] Compared with the prior art, this utility model has the following advantages: The tilt sensor is linked to the electric hydraulic cylinder to adjust the level of the cargo box in real time, so as to prevent the cargo from shifting and slipping on the slope and improve transportation safety. The pressure sensor of the movable connecting block monitors the load in real time and triggers an alarm when overloaded to prevent damage to the shock absorption and drive components due to overload. The dual buffer of wheel shock absorption and internal damping springs significantly reduces vibrations on bumpy port roads, protects fragile goods, and extends the life of trolley components. The electric hydraulic cylinder with four evenly distributed supports, combined with the first spring, enhances the stability of the cargo box; the omnidirectional wheels allow for flexible steering, the cover can be easily opened and closed, and the battery provides independent power, making it suitable for narrow port passages, complex environments, and fast-paced operations, thus improving ease of operation and transfer efficiency. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a port cargo transport trolley according to the present invention; Figure 2 This is a cross-sectional view of a port cargo transport trolley according to the present invention; Figure 3 A three-dimensional structural diagram of the base of the transport trolley; Figure 4 for Figure 2 A magnified view of a section at point A in the middle; The reference numerals in the accompanying drawings of the instruction manual include: 1. Vehicle base; 2. Wheel assembly; 21. Universal shock-absorbing front wheel; 22. Shock-absorbing rear wheel; 3. Steering device; 31. Handle; 32. Rotary rod; 33. Fixed cylinder; 34. Push rod; 35. Connecting rod; 4. Vehicle cover; 5. Cargo box; 6. Electro-hydraulic cylinder; 61. Movable connecting block; 7. Battery; 8. Tilt sensor; 9. Internal shock-absorbing assembly; 91. Upper support plate; 92. Shock-absorbing spring; 93. Damper; 94. Lower base plate; 10. Cross plate; 11. First spring. Detailed Implementation

[0013] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0014] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this application. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0015] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0016] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between 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. Example

[0017] like Figure 1-4 As shown, this utility model discloses a port cargo transport trolley, including a base 1, a wheel assembly 2 at the bottom of the base 1, a steering device 3 at one end of the base 1, a first spring 11 on one side of the steering device 3, an electric hydraulic cylinder 6 on the upper side of the base 1, a cargo box 5 on the upper side of the electric hydraulic cylinder 6, a cover 4 hinged to the top of the cargo box 5, an internal shock absorption assembly 9 at the bottom inside the cargo box 5, a cross plate 10 on the upper side of the internal shock absorption assembly 9, a tilt sensor 8 on the lower side of the cargo box 5, and a battery 7 on the lower side of the tilt sensor 8.

[0018] Furthermore, the wheel assembly 2 includes a swivel front wheel 21 connected to the steering device 3 and a shock-absorbing rear wheel 22 fixedly connected to one end of the vehicle base 1. Specifically, the swivel front wheel 21 is connected to the steering device 3 to achieve flexible steering and shock absorption, while the shock-absorbing rear wheel 22 is fixed to the vehicle base 1. The two work together to ensure the smooth movement of the vehicle and to buffer road bumps.

[0019] Furthermore, the steering device 3 includes a fixed cylinder 33 fixedly connected to one end of the vehicle base 1. A rotating rod 32 is rotatably connected inside the fixed cylinder 33. A handle 31 is provided at the top of the rotating rod 32, and a push rod 34 is provided at the bottom of the rotating rod 32. Connecting rods 35 are provided at both ends of the push rod 34. The handle 31 is provided with anti-slip texture, and the connecting rods 35 are fixedly connected to the universal shock-absorbing front wheel 21.

[0020] Specifically, the fixed cylinder 33 is fixed to the base 1 of the vehicle. The handle 31 at the top of the inner rotating rod 32 has anti-slip texture for easy gripping and operation. The push rod 34 at the bottom of the rotating rod 32 is connected to the universal shock-absorbing front wheel 21 through the connecting rod 35. Turning the handle can drive the front wheel to turn, enabling the trolley to change direction flexibly and adapt to the needs of operation in narrow areas of the port.

[0021] Furthermore, the internal shock absorption assembly 9 includes a lower base plate 94 fixedly connected to the inner wall of the cargo box 5. A damper 93 is provided on the upper side of the lower base plate 94, and a shock-absorbing spring 92 is provided on the outer side of the damper 93. An upper support plate 91 is provided on the upper side of the shock-absorbing spring 92, and the upper side of the upper support plate 91 is fixedly connected to the horizontal plate 10. Specifically, the lower base plate 94 is fixed to the inner wall of the cargo box 5, and the upper support plate 91 supports the horizontal plate 10. The damper 93 and the outer shock-absorbing spring 92 work together between the two. During transportation, the vibration transmitted to the inside of the box is absorbed through the elastic deformation of the spring and the buffering of the damper, effectively protecting the goods on the horizontal plate 10 and reducing damage from bumps.

[0022] Furthermore, four electric hydraulic cylinders 6 are evenly distributed on both sides of the cargo box 5. Each electric hydraulic cylinder 6 has a movable connecting block 61 at its top, which is fixedly connected to the cargo box 5. A pressure sensor is mounted on the movable connecting block 61. Specifically, the 44 cylinders are evenly distributed at the four corners of the vehicle base, with the top movable connecting block 61 connecting to the cargo box 5, forming a four-point symmetrical support to stably support the cargo box and goods. The pressure sensor on the connecting block can monitor the load to prevent overloading, while the hydraulic cylinders can adjust the height of the cargo box, adjusting its level in real time to prevent goods from shifting or slipping on sloping roads.

[0023] Furthermore, the tilt sensor 8 is electrically connected to the controller, one side of the first spring 11 is connected to the vehicle base 1, and the other side of the first spring 11 is connected to the bottom of the cargo box 5. Specifically, the tilt sensor 8 is connected to the controller to monitor the level of the cargo box in real time, facilitating timely adjustments to avoid tilting; the first spring 11 connects the vehicle base 1 and the cargo box 5, forming a flexible buffer to counteract the swaying of the cargo box during transportation and enhance overall stability.

[0024] Operating principle: Before use, check the connection status of each component to ensure that the wheel assembly 2 is firmly connected to the base 1 and steering device 3, the electric hydraulic cylinder 6 extends and retracts smoothly, and the battery 7 has sufficient power; calibrate the tilt sensor 8 through the controller to ensure accurate tilt angle detection and that the pressure sensor is in normal working condition; open the cover 4 on the top of the cargo box 5, place the goods to be transported on the cross plate 10, and close the cover 4; the pressure sensor on the movable connecting block 61 monitors the load in real time. If it does not exceed the rated load of the trolley, transportation can be started normally; if overloaded, the goods need to be reduced to within the rated load range.

[0025] The operator holds handle 31 and pushes the trolley along the port transport route. When turning, the operator turns handle 31, which drives the omnidirectional shock-absorbing front wheel 21 to turn via lever 32, push rod 34 and connecting rod 35. When traveling on bumpy roads, the shock-absorbing structure of wheel assembly 2 and the shock-absorbing assembly 9 inside the box work together to absorb vibrations and keep the cross plate 10 and the cargo stable. When traveling on sloping roads, tilt sensor 8 transmits tilt data to controller in real time. If tilting occurs, controller controls the extension and retraction of the corresponding electric hydraulic cylinder 6 on one side and controls the lowering of the electric hydraulic cylinder 6 on the other side to adjust the height of the cargo box 5 and keep the cargo box level. Pressure sensor continuously monitors the load to avoid local overloading caused by cargo shifting during transportation.

[0026] Upon arrival at the destination, open the hood 4, unload the goods from the crossbar 10, and close the hood 4; clean the inside of the cargo box 5, check that all parts are intact, and prepare for the next transport.

[0027] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software and methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A transport trolley for use in port operations, characterised in that: Includes a vehicle base (1), a wheel assembly (2) at the bottom of the vehicle base (1), a steering device (3) at one end of the vehicle base (1), a plurality of first springs (11) on one side of the steering device (3), an electric hydraulic cylinder (6) on the upper side of the vehicle base (1), a cargo box (5) on the upper side of the electric hydraulic cylinder (6), a cover (4) hinged to the top of the cargo box (5), an internal shock absorption assembly (9) at the bottom of the cargo box (5), a cross plate (10) on the upper side of the internal shock absorption assembly (9), an tilt sensor (8) on the lower side of the cargo box (5), and a battery (7) on the lower side of the tilt sensor (8).

2. A transport trolley for use in a port as claimed in claim 1, characterized in that: The wheel assembly (2) includes a swivel front wheel (21) connected to the steering device (3) and a rear wheel (22) fixedly connected to one end of the base (1).

3. A transport trolley for use in a port as claimed in claim 1, characterized in that: The steering device (3) includes a fixed cylinder (33) fixedly connected to one end of the vehicle base (1), a rotating rod (32) is rotatably connected inside the fixed cylinder (33), a handle (31) is provided at the top of the rotating rod (32), a push rod (34) is provided at the bottom of the rotating rod (32), and connecting rods (35) are provided at both ends of the push rod (34).

4. A transport trolley for use in a port as claimed in claim 1, characterized in that: The shock absorption assembly (9) inside the box includes a bottom plate (94) fixedly connected to the inner wall of the cargo box (5). A damper (93) is provided on the upper side of the bottom plate (94). A shock absorption spring (92) is provided on the outer side of the damper (93). An upper support plate (91) is provided on the upper side of the shock absorption spring (92). The upper side of the upper support plate (91) is fixedly connected to the horizontal plate (10).

5. A transport trolley for use in a port as claimed in claim 3, characterized in that: The handle (31) is provided with anti-slip texture, and the connecting rod (35) is fixedly connected to the universal shock-absorbing front wheel (21).

6. A transport trolley for use in a port as claimed in claim 1, characterized in that: The electric hydraulic cylinder (6) has four units, which are evenly distributed on both sides of the cargo box (5). The top of the electric hydraulic cylinder (6) is provided with a movable connecting block (61), which is fixedly connected to the cargo box (5). A pressure sensor is provided on the movable connecting block (61).

7. A transport trolley for use in a port as claimed in claim 1, characterized in that: The tilt sensor (8) is electrically connected to the controller, one side of the first spring (11) is connected to the vehicle base (1), and the other side of the first spring (11) is connected to the bottom of the cargo box (5).

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