Movable hydraulic dock leveler

Abstract

The utility model provides a movable hydraulic dock leveler, which relates to the technical field of loading and unloading equipment and comprises a dock leveler body platform, a steering axle assembly, a drive axle assembly, a first push rod hydraulic oil cylinder, a second push rod hydraulic oil cylinder, a first connecting frame, a second connecting frame and a supporting leg oil cylinder. The first connecting frame and the second connecting frame are hinged to the lower end face of the bridge platform, one end of the first push rod hydraulic cylinder is hinged to the first connecting frame, the other end of the first push rod hydraulic cylinder is hinged to the lower end face of the bridge platform, and one end of the second push rod hydraulic cylinder is hinged to the second connecting frame, and the other end of the second push rod hydraulic cylinder is hinged to the lower end face of the bridge platform. The steering axle assembly is arranged on the first connecting frame, the drive axle assembly is arranged on the second connecting frame, and the four supporting leg oil cylinders are arranged at the four corners of the axle body platform respectively. Compared with the prior art, the movable hydraulic dock leveler has the advantages that barrier-free passing of loading and unloading equipment is achieved, time and labor are saved, and loading and unloading efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of loading and unloading equipment technology, and more specifically, to a mobile hydraulic loading ramp. Background Technology

[0002] Loading and unloading platforms are a very common structural form in modern logistics sites. They serve as the starting and ending point of a company's logistics chain, providing a platform for the rapid and safe handling of products and goods. However, because the height of the loading and unloading platform is fixed, but the heights of the transport vehicles vary, a certain height difference or gap will form between the transport vehicles and the loading and unloading platform, preventing forklifts from directly loading and unloading goods from entering and exiting the transport vehicles.

[0003] Currently, the above problems are usually solved by manually building ramps. However, the height difference between the transport vehicle and the loading and unloading platform is not fixed, and ramps need to be built each time according to the actual situation, which is not only time-consuming and labor-intensive, but also affects loading and unloading efficiency. Utility Model Content

[0004] The problem to be solved by this utility model is: how to provide a loading ramp for connecting transport vehicles and loading and unloading platforms, mainly used to adjust the height difference and realize the unobstructed passage of loading and unloading equipment such as forklifts and handcarts.

[0005] This utility model provides a mobile hydraulic loading ramp, comprising: a ramp platform, a steering axle assembly, a drive axle assembly, a first push rod hydraulic cylinder, a second push rod hydraulic cylinder, a first connecting frame, a second connecting frame, and outrigger cylinders. The first connecting frame and the second connecting frame are arranged at intervals along the length of the ramp platform and are respectively hinged to the lower end face of the ramp platform. One end of the first push rod hydraulic cylinder is hinged to the first connecting frame, and the other end is hinged to the lower end face of the ramp platform. One end of the second push rod hydraulic cylinder is hinged to the second connecting frame, and the other end is hinged to the lower end face of the ramp platform. The steering axle assembly is disposed on the first connecting frame, the drive axle assembly is disposed on the second connecting frame, and the four outrigger cylinders are respectively arranged vertically at the four corners of the ramp platform.

[0006] The mobile hydraulic loading ramp provided by this utility model has, but is not limited to, the following beneficial effects compared with related technologies:

[0007] The mobile hydraulic loading ramp of this invention allows the platform to be moved between the transport vehicle and the loading / unloading platform via the steering axle assembly and drive axle assembly. The extension and retraction lengths of the first and second push-rod hydraulic cylinders are then adjusted according to the actual height difference between the two platforms, thereby adjusting the platform to a suitable angle for unobstructed passage of forklifts, handcarts, and other loading / unloading equipment. Once the platform's position is determined, the outrigger cylinders at the four corners of the platform are used to support it on the base, preventing displacement during operation. Compared to related technologies, this mobile hydraulic loading ramp allows for rapid adjustment of the platform angle via the first and second push-rod hydraulic cylinders, enabling it to be used with trucks of various heights and facilitating unobstructed passage of forklifts, handcarts, and other loading / unloading equipment. This not only saves time and labor but also improves loading and unloading efficiency.

[0008] Optionally, the mobile hydraulic loading ramp also includes a front platform, one end of which is hinged to the front end of the ramp platform.

[0009] Optionally, the mobile hydraulic loading ramp also includes a third push rod hydraulic cylinder, the two ends of which are hinged to the front platform and the bridge platform respectively, for driving the front platform to rotate relative to the bridge platform.

[0010] Optionally, an extension rod is provided on the lower end face of the front platform near the bridge platform, and the extension rod extends to the lower end face of the bridge platform. One end of the third push rod hydraulic cylinder is hinged to the lower end face of the bridge platform, and the other end is hinged to the end of the extension rod away from the front platform.

[0011] Optionally, the mobile hydraulic loading ramp also includes a first column and a first hand chain hoist. The first column is vertically connected to the upper end face of the front end of the ramp platform, and the first hand chain hoist is mounted on the first column. The first hand chain hoist is connected to the front platform via a chain.

[0012] Optionally, the mobile hydraulic loading ramp also includes a rear platform, one end of which is hinged to the rear end of the ramp platform.

[0013] Optionally, the mobile hydraulic loading ramp also includes a fourth push rod hydraulic cylinder, the two ends of which are hinged to the rear platform and the bridge platform respectively, for driving the rear platform to rotate relative to the bridge platform.

[0014] Optionally, the mobile hydraulic loading ramp also includes a second column, which is vertically connected to the upper end face of the rear end of the ramp platform. One end of the fourth push rod hydraulic cylinder is hinged to the second column, and the other end is hinged to the upper end face of the rear platform.

[0015] Optionally, this mobile hydraulic loading ramp also includes a second hand chain hoist, which is mounted on the second column and connected to the rear platform via a chain.

[0016] Optionally, the bridge platform includes a first main body and a second main body connected to each other, and the first main body and the second main body are connected at an obtuse angle. Attached Figure Description

[0017] Figure 1 The front view of the mobile hydraulic loading ramp according to an embodiment of this utility model. Figure 1 ;

[0018] Figure 2 The front view of the mobile hydraulic loading ramp according to an embodiment of this utility model. Figure 2 ;

[0019] Figure 3 This is a simplified diagram showing the positional relationship between the first connecting frame, the steering axle assembly, and the first push rod hydraulic cylinder in an embodiment of this utility model.

[0020] Figure 4 This is a simplified diagram showing the positional relationship between the second connecting frame, the drive axle assembly, and the second push rod hydraulic cylinder in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] Bridge platform 1, first main body 101, second main body 102, steering bridge assembly 2, drive bridge assembly 3, first push rod hydraulic cylinder 4, second push rod hydraulic cylinder 5, first connecting frame 6, second connecting frame 7, outrigger cylinder 8, front platform 9, third push rod hydraulic cylinder 10, extension rod 11, first column 12, first hand chain hoist 13, rear platform 14, fourth push rod hydraulic cylinder 15, second column 16, second hand chain hoist 17. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection 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.

[0026] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0027] Furthermore, in the attached diagram, the Y-axis represents the vertical direction, that is, the front-to-back position, with the positive direction of the Y-axis representing the front and the negative direction representing the back; in the attached diagram, the Z-axis represents the vertical direction, that is, the up-to-down position, with the positive direction of the Z-axis representing the up and the negative direction representing the down.

[0028] It should also be noted that the meanings of the aforementioned Y-axis and Z-axis are only for the convenience of describing the present invention and simplifying the description, and are not intended to 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 the present invention.

[0029] like Figures 1 to 2As shown, the mobile hydraulic loading ramp of this utility model embodiment includes: a ramp platform 1, a steering axle assembly 2, a drive axle assembly 3, a first push rod hydraulic cylinder 4, a second push rod hydraulic cylinder 5, a first connecting frame 6, a second connecting frame 7, and outrigger cylinders 8. The first connecting frame 6 and the second connecting frame 7 are arranged at intervals along the length direction of the ramp platform 1 and are respectively hinged to the lower end face of the ramp platform 1. One end of the first push rod hydraulic cylinder 4 is hinged to the first connecting frame 6, and the other end is hinged to the lower end face of the ramp platform 1. One end of the second push rod hydraulic cylinder 5 is hinged to the second connecting frame 7, and the other end is hinged to the lower end face of the ramp platform 1. The steering axle assembly 2 is disposed on the first connecting frame 6, the drive axle assembly 3 is disposed on the second connecting frame 7, and the four outrigger cylinders 8 are respectively arranged vertically at the four corners of the ramp platform 1.

[0030] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, this mobile hydraulic loading ramp, during use, can move the platform 1 between the transport vehicle and the loading / unloading platform via the steering axle assembly 2 and the drive axle assembly 3. Then, based on the actual height difference between the transport vehicle and the loading / unloading platform, the extension and retraction lengths of the first push rod hydraulic cylinder 4 and the second push rod hydraulic cylinder 5 are adjusted to adjust the platform 1 to a suitable angle, facilitating unobstructed passage for forklifts, handcarts, and other loading / unloading equipment. After the position of the platform 1 is determined, the outrigger cylinders 8 at the four corners of the platform 1 are respectively supported on the bottom surface to prevent displacement of the platform 1 during operation. Compared with related technologies, this mobile hydraulic loading ramp allows for rapid adjustment of the angle of the platform 1 via the first push rod hydraulic cylinder 4 and the second push rod hydraulic cylinder 5, enabling the loading ramp to be used with trucks of various heights, achieving unobstructed passage for forklifts, handcarts, and other loading / unloading equipment. This not only saves time and labor but also improves the efficiency of loading and unloading goods.

[0031] In the above-mentioned work process, combined with the appendix Figure 3 and attached Figure 4 As shown, the attached Figure 3 A simplified diagram showing the positional relationship between the first connecting frame 6, the steering axle assembly 2, and the first push rod hydraulic cylinder 4 is attached. Figure 4 This is a simplified diagram showing the positional relationship between the second connecting frame 7, the drive axle assembly 3, and the second push rod hydraulic cylinder 5. The first push rod hydraulic cylinder 4 and the second push rod hydraulic cylinder 5 can extend to the attached... Figure 1 As shown, this raises the front end of the bridge platform 1, allowing the first push rod hydraulic cylinder 4 and the second push rod hydraulic cylinder 5 to retract to the attached position. Figure 2 As shown, this reduces the height of bridge platform 1.

[0032] It should be noted that both the steering axle assembly 2 and the drive axle assembly 3 are existing technologies. The function of the steering axle assembly 2 is to support the weight of the front of the loading ramp, thereby enabling steering. Its main components may include:

[0033] The front axle, which is the main body of the steering axle, is mostly I-shaped or tubular in structure and is used to connect the wheels on both sides.

[0034] The steering knuckle, a fork-shaped structure, is connected to the front axle via a kingpin and is a key component for wheel steering. The upper end houses the steering knuckle arm (connecting to the steering tie rod), and the lower end houses the wheel hub and brake backing plate.

[0035] The kingpin connects the front axle and the steering knuckle, allowing the steering knuckle to swing around it and thus steer the wheels.

[0036] The wheel hub, mounted on the outside of the steering knuckle, is connected to the steering knuckle via bearings and is used to fix the wheel and transmit torque.

[0037] The steering knuckle arm connects the steering knuckle and the steering tie rod, transmitting steering force.

[0038] The steering tie rod is used to connect the left and right steering knuckles, adjust the wheel toe-in, and ensure coordinated wheel movement during steering.

[0039] The function of the drive axle assembly 3 is to transmit power from the transmission to the drive wheels, achieving deceleration, torque increase, and changing the direction of power transmission, while also supporting the weight of the vehicle. Its main components may include:

[0040] The main reducer reduces speed, increases torque, and changes the direction of power transmission through gear pairs (such as bevel gears and cylindrical gears).

[0041] A differential allows the left and right drive wheels to rotate at different speeds when turning, reducing tire wear and steering resistance.

[0042] The half-shaft, which transmits the power of the differential to the drive wheels, consists of two shafts, left and right.

[0043] The axle housing, as the outer shell of the drive axle, supports the main reducer, differential, and half-shafts, while also bearing the weight of the vehicle and the impact force of the road surface.

[0044] The wheel hub, which connects to the drive wheel, is mounted on the axle housing via bearings, transmits torque, and supports the wheel.

[0045] Optionally, the mobile hydraulic loading ramp also includes a front platform 9, one end of which is hinged to the front end of the ramp platform 1.

[0046] In this embodiment, in conjunction with the appendix Figure 1 and attached Figure 2 As shown, this mobile hydraulic loading ramp also includes a front platform 9, wherein the rear end of the front platform 9 (attached) Figure 1 Or attached Figure 2 The front platform 9 (in the opposite direction of the Y-axis) can be hinged to the front end of the bridge platform 1 via a pin. The front platform 9 can be attached to the cargo compartment of the transport vehicle, so that loading and unloading equipment such as forklifts and handcarts can be smoothly loaded into the cargo compartment of the transport vehicle.

[0047] Optionally, the mobile hydraulic loading ramp also includes a third push rod hydraulic cylinder 10, the two ends of which are hinged to the front platform 9 and the bridge platform 1, respectively, for driving the front platform 9 to rotate relative to the bridge platform 1.

[0048] In this embodiment, in conjunction with the appendix Figure 2 As shown, a third push rod hydraulic cylinder 10 is hinged between the front platform 9 and the bridge body platform 1. The third push rod hydraulic cylinder 10 can drive the front platform 9 to rotate relative to the bridge body platform 1, thereby automatically adjusting the rotation angle.

[0049] Optionally, an extension rod 11 is provided on the lower end face of the front platform 9 near the bridge platform 1, and the extension rod 11 extends to the lower end face of the bridge platform 1. One end of the third push rod hydraulic cylinder 10 is hinged to the lower end face of the bridge platform 1, and the other end is hinged to the end of the extension rod 11 away from the front platform 9.

[0050] In this embodiment, in conjunction with the appendix Figure 2 As shown, on the lower end face of the front platform 9 near the bridge platform 1 (attached) Figure 2 An extension rod 11 is provided in the opposite direction of the Z-axis. One end of the extension rod 11 extends to the lower end face of the front end of the bridge platform 1 (near the front platform 9). The fixed end of the third push rod hydraulic cylinder 10 is hinged to the lower end face of the bridge platform 1, and the telescopic end of the third push rod hydraulic cylinder 10 is hinged to the end of the extension rod 11 away from the front platform 9. The front platform 9 can be rotated relative to the bridge platform 1 by the telescopic movement of the third push rod hydraulic cylinder 10.

[0051] Optionally, the mobile hydraulic loading ramp also includes a first column 12 and a first hand chain hoist 13. The first column 12 is vertically connected to the upper end face of the front end of the bridge platform 1, and the first hand chain hoist 13 is disposed on the first column 12. The first hand chain hoist 13 is connected to the front platform 9 by a chain.

[0052] In this embodiment, in conjunction with the appendix Figure 2 As shown, the first column 12 is vertically connected to the upper end face of the front end of the bridge platform 1, and a first hand chain hoist 13 is provided on the first column 12. The first hand chain hoist 13 can be connected to the front platform 9 through a chain, so that the rotation angle of the front platform 9 relative to the bridge platform 1 can be adjusted by hand.

[0053] Optionally, the mobile hydraulic loading ramp also includes a rear platform 14, one end of which is hinged to the rear end of the ramp platform 1.

[0054] In this embodiment, in conjunction with the appendix Figure 2 As shown, this mobile hydraulic loading ramp also includes a rear platform 14, wherein the front end of the rear platform 14 (attached) Figure 1 Or attached Figure 2 The rear platform 14 (in the positive direction of the Y-axis) can be hinged to the rear end of the bridge platform 1 via a pin, and the rear platform 14 can be attached to the bottom surface, so that loading and unloading equipment such as forklifts and handcarts can be smoothly mounted on the bridge platform 1.

[0055] Optionally, the mobile hydraulic loading ramp also includes a fourth push rod hydraulic cylinder 15, the two ends of which are hinged to the rear platform 14 and the bridge platform 1, respectively, for driving the rear platform 14 to rotate relative to the bridge platform 1.

[0056] In this embodiment, in conjunction with the appendix Figure 2 As shown, a fourth push rod hydraulic cylinder 15 is hinged between the rear platform 14 and the bridge platform 1. The fourth push rod hydraulic cylinder 15 can drive the rear platform 14 to rotate relative to the bridge platform 1, thereby automatically adjusting the rotation angle.

[0057] Optionally, the mobile hydraulic loading ramp also includes a second column 16, which is vertically connected to the upper end face of the rear end of the bridge platform 1. One end of the fourth push rod hydraulic cylinder 15 is hinged to the second column 16, and the other end is hinged to the upper end face of the rear platform 14.

[0058] In this embodiment, in conjunction with the appendix Figure 2 As shown, the second column 16 is vertically connected to the upper end face of the front end of the bridge platform 1. The fixed end of the fourth push rod hydraulic cylinder 15 can be hinged to the second column 16, and the telescopic end of the fourth push rod hydraulic cylinder 15 can be hinged to the upper end face of the rear platform 14. The telescopic movement of the fourth push rod hydraulic cylinder 15 can drive the rear platform 14 to rotate relative to the bridge platform 1.

[0059] Optionally, the mobile hydraulic loading ramp also includes a second hand chain hoist 17, which is mounted on the second column 16 and connected to the rear platform 14 via a chain.

[0060] In this embodiment, in conjunction with the appendix Figure 2 As shown, a second hand chain hoist 17 is installed on the second column 16. The second hand chain hoist 17 can be connected to the rear platform 14 via a chain, so that the rotation angle of the rear platform 14 relative to the bridge platform 1 can be adjusted by hand.

[0061] Optionally, the bridge platform 1 includes a first main body 101 and a second main body 102 connected to each other, and the first main body 101 and the second main body 102 are connected at an obtuse angle.

[0062] In this embodiment, in conjunction with the appendix Figure 2 As shown, the bridge platform 1 includes a first main body 101 and a second main body 102 that are connected to each other, and the first main body 101 and the second main body 102 are connected at an obtuse angle, which can be between 140° and 170°. This structure can reduce the climbing height of loading and unloading equipment such as forklifts and handcarts to a certain extent.

[0063] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0064] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. A mobile hydraulic loading ramp, characterized in that, include: The bridge platform (1), steering axle assembly (2), drive axle assembly (3), first push rod hydraulic cylinder (4), second push rod hydraulic cylinder (5), first connecting frame (6), second connecting frame (7) and outrigger cylinder (8) are arranged at intervals along the length of the bridge platform (1) and are respectively hinged to the lower end face of the bridge platform (1). One end of the first push rod hydraulic cylinder (4) is hinged to the first connecting frame (6) and the other end is hinged to the lower end face of the bridge platform (1). One end of the second push rod hydraulic cylinder (5) is hinged to the second connecting frame (7) and the other end is hinged to the lower end face of the bridge platform (1). The steering axle assembly (2) is set on the first connecting frame (6) and the drive axle assembly (3) is set on the second connecting frame (7). The four outrigger cylinders (8) are arranged vertically at the four corners of the bridge platform (1).

2. The mobile hydraulic dock leveler of claim 1, wherein, It also includes a front platform (9), one end of which is hinged to the front end of the bridge platform (1).

3. The mobile hydraulic dock leveler of claim 2, wherein, It also includes a third push rod hydraulic cylinder (10), the two ends of which are hinged to the front platform (9) and the bridge platform (1) respectively, for driving the front platform (9) to rotate relative to the bridge platform (1).

4. The mobile hydraulic dock leveler of claim 3, wherein, An extension rod (11) is provided on the lower end face of the front platform (9) near the bridge body platform (1), and the extension rod (11) extends to the lower end face of the bridge body platform (1). One end of the third push rod hydraulic cylinder (10) is hinged to the lower end face of the bridge body platform (1), and the other end is hinged to the end of the extension rod (11) away from the front platform (9).

5. The mobile hydraulic loading ramp according to claim 2, characterized in that, It also includes a first column (12) and a first hand chain hoist (13). The first column (12) is vertically connected to the upper end face of the front end of the bridge platform (1). The first hand chain hoist (13) is set on the first column (12). The first hand chain hoist (13) is connected to the front platform (9) by a chain.

6. The mobile hydraulic loading ramp according to claim 1, characterized in that, It also includes a rear platform (14), one end of which is hinged to the rear end of the bridge platform (1).

7. The mobile hydraulic dock leveler of claim 6, wherein, It also includes a fourth push rod hydraulic cylinder (15), the two ends of which are hinged to the rear platform (14) and the bridge platform (1) respectively, for driving the rear platform (14) to flip relative to the bridge platform (1).

8. The mobile hydraulic loading ramp according to claim 7, characterized in that, It also includes a second column (16), which is vertically connected to the upper end face of the rear end of the bridge platform (1). One end of the fourth push rod hydraulic cylinder (15) is hinged to the second column (16), and the other end is hinged to the upper end face of the rear platform (14).

9. The mobile hydraulic dock leveler of claim 8, wherein, It also includes a second chain hoist (17), which is mounted on the second column (16) and is connected to the rear platform (14) by a chain.

10. The mobile hydraulic loading ramp according to any one of claims 1 to 9, characterized in that, The bridge platform (1) includes a first body (101) and a second body (102) that are connected to each other, and the first body (101) and the second body (102) are connected at an obtuse angle.

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