A mobile lifting platform

Abstract

This application discloses a mobile lifting platform, which includes a base frame, a lifting platform, and a scissor frame. The lifting platform is fixed to the base frame via the scissor frame. A lifting device is installed on the scissor frame and fixed to it for controlling the lifting platform to rise or fall. A moving device is installed on the side of the lifting platform near the base frame, used to move the mobile lifting platform when it descends to the point where the moving device contacts the ground. The lifting device consists of a first drive structure and a second drive structure, which are engaged by a rack and pinion structure. When the lifting device controls the lifting platform to rise or fall, the first and second drive structures move in opposite directions or towards each other along the extension direction of the rack and pinion structure. This application improves the stability of the lifting device by using the engaged first and second drive structures, while utilizing the moving device to achieve the movement of the mobile lifting platform.

Description

Technical Field

[0001] This application relates to the field of transportation technology, and in particular to a mobile lifting platform. Background Technology

[0002] Low-profile lifting platforms play a crucial role in numerous industrial sectors, such as machinery manufacturing, electronic assembly, and warehousing and logistics. They are primarily used to smoothly lift goods or workpieces from a lower position to a certain height to meet specific height requirements in production, handling, and assembly processes. With the continuous development of industrial production and the increasing level of automation, the application scope of low-profile lifting platforms continues to expand, and their importance is becoming increasingly prominent.

[0003] Existing low-level articulated lifting platforms typically consist of a base, lifting column, work platform, drive unit, and control system. They usually use hydraulic drive to power the lifting column, which generates pressurized oil through a hydraulic pump station to move a piston within a hydraulic cylinder, thus raising or lowering the column. However, since the hydraulic cylinder is usually fixed to the base, with the thrust transmitted by a hydraulic rod against the work platform, there is a risk of the hydraulic rod slipping and falling off. Furthermore, most existing low-level articulated lifting platforms are fixed structures, limiting their stability and flexibility. Utility Model Content

[0004] The purpose of this application is to provide a mobile lifting platform to solve the above-mentioned technical problems existing in the prior art, increase the moving friction of the hydraulic rod, effectively prevent the hydraulic rod from sliding and falling off, and at the same time increase mobility by using a moving device.

[0005] This application provides a mobile lifting platform, which includes a base frame, a lifting platform, and a scissor frame. The lifting platform is fixed to the base frame via the scissor frame. A lifting device is installed on the scissor frame and fixed to it for controlling the lifting platform to rise or fall. A moving device is installed on the side of the lifting platform near the base frame for moving the mobile lifting platform when it descends to the point where the moving device contacts the ground. The lifting device consists of a first drive structure and a second drive structure, which are engaged by a rack and pinion structure. When the lifting device controls the lifting platform to rise or fall, the first drive structure and the second drive structure move in opposite directions or towards each other along the extension direction of the rack and pinion structure.

[0006] Furthermore, the scissor lift consists of a first support rod and a second support rod arranged in a cross configuration. The first end of the first support rod is slidably connected to the base frame, and the second end of the first support rod is fixedly connected to the side of the lifting platform near the base frame. The first end of the second support rod is slidably connected to the side of the lifting platform near the base frame, and the second end of the second support rod is fixedly connected to the base frame.

[0007] When the lifting device controls the lifting platform to rise or fall, the first end of the first support rod slides relative to the base frame, and the first end of the second support rod slides relative to the lifting platform.

[0008] Furthermore, the shear frame includes a central shaft and two sets of first support rods and second support rods. Each set of first support rods and second support rods has a shaft hole at the intersection. The central shaft passes through the shaft hole to fix the two sets of first support rods and second support rods and synchronize the sliding distance of the two sets of first support rods and second support rods.

[0009] Furthermore, the scissor also includes a first fixed rod and a second fixed rod. The first fixed rod connects two sets of first support rods, and the second fixed rod connects two sets of second support rods. The first end of the first drive structure is fixed to the first fixed rod, and the first end of the second drive structure is fixed to the second fixed rod. The second end of the first drive structure and the second end of the second drive structure are engaged by a rack and pinion structure.

[0010] Furthermore, the first drive structure includes a hydraulic rod and a first toothed clamping bar. The fixed end of the hydraulic rod is disposed on the first fixed rod, and the telescopic end of the hydraulic rod is fixedly connected to the second drive structure. The first toothed clamping bar is disposed on the side of the hydraulic rod near the base frame.

[0011] Furthermore, the second drive structure includes a fixed frame and an electric cylinder. The first end of the fixed frame is fixedly mounted on the second fixed rod, and the second end of the fixed frame forms a second toothed clamping bar. The first toothed clamping bar and the second toothed clamping bar are engaged. The electric cylinder is located at the second end of the fixed frame and is used to lift the second toothed clamping bar. The fixed frame is a rotatable structure, and the first end of the fixed frame and the second end of the fixed frame are set at an angle.

[0012] Furthermore, the base frame is provided with a first slide rail, the first end of the first support rod is provided with a first mounting hole, the first roller is fixed to the first support rod by a first mounting shaft passing through the first mounting hole, and the first roller is slidably disposed in the first slide rail.

[0013] Furthermore, the lifting platform is provided with a second slide rail on the side near the base frame, a second mounting hole is provided at the first end of the second support rod, and the second roller is fixed to the second support rod by a second mounting shaft passing through the second mounting hole, and the second roller is slidably disposed on the second slide rail.

[0014] Furthermore, the lifting platform includes a platform and extension seats extending toward the base frame. Extension seats are provided at all four ends of the platform, and the extension seats are used to install moving devices.

[0015] Furthermore, the mobility device is a caster wheel.

[0016] Unlike existing technologies, the mobile lifting platform of this application consists of a base frame, a lifting platform, a scissor frame, a lifting device, and a moving device. The lifting platform is fixed to the base frame via the scissor frame, and the lifting device is fixed to the scissor frame to control the lifting platform's ascent or descent, realizing the basic lifting function of the mobile lifting platform. The moving device is located on the side of the lifting platform near the base frame and is used to move the mobile lifting platform when it descends to the point where the moving device contacts the ground, giving the mobile lifting platform mobility and enhancing its flexibility. The lifting device consists of a first drive structure and a second drive structure engaged by a rack and pinion structure. When the lifting device controls the lifting platform to rise or fall, the first drive structure and the second drive structure move in opposite directions or towards each other along the extension direction of the rack and pinion structure. The rack and pinion structure increases the moving friction of the lifting device, effectively preventing the lifting device from slipping and falling off, and improving the stability of the mobile lifting platform.

[0017] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a first structural schematic diagram of an embodiment of the mobile lifting platform of this application;

[0020] Figure 2 This is a second structural schematic diagram of an embodiment of the mobile lifting platform of this application;

[0021] Figure 3 This is a third structural schematic diagram of an embodiment of the mobile lifting platform of this application;

[0022] Figure 4 This is an exploded structural diagram of the scissor lift and jacking device of this application;

[0023] Icon labels:

[0024] 1-Mobile lifting platform; 10-Base frame; 11-First slide rail; 20-Lifting platform; 21-Baffle; 22-Extension seat; 23-Second slide rail; 30-Scissor frame; 31-First support rod; 32-Second support rod; 33-Central shaft; 34-First roller; 35-Second roller; 36-First mounting frame; 37-Second mounting frame; 38-First fixing rod; 39-Second fixing rod; 40-Lifting device; 41-First drive structure; 411-Hydraulic rod; 412-First toothed clamp; 42-Second drive structure; 421-Fixed frame; 422-Second toothed clamp; 51-Universal wheel; 60-Extension plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this application, the mobile lifting platform provided by this application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It is understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] The terms "first," "second," etc., used in this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0027] Since existing mobile lifting platforms have fixed structures and the hydraulic cylinders are prone to slippage and detachment, this application provides a mobile lifting platform that improves the installation stability of the lifting device, i.e., the hydraulic rod, by means of a rack and pinion structure engagement, and sets up a moving device to improve the mobility of the mobile lifting platform, thereby improving the stability and flexibility of the mobile lifting platform.

[0028] Please see Figures 1-4 , Figure 1 This is a first structural schematic diagram of an embodiment of the mobile lifting platform of this application; Figure 2 This is a second structural schematic diagram of an embodiment of the mobile lifting platform of this application; Figure 3 This is a third structural schematic diagram of an embodiment of the mobile lifting platform of this application; Figure 4 This is an exploded structural diagram of the shear frame and lifting device of this application.

[0029] like Figures 1-4As shown, this application provides a mobile lifting platform 1, which includes a base frame 10, a lifting platform 20, a scissor frame 30, a lifting device 40, and a moving device (not shown in the figure). The lifting platform 20 is fixed to the base frame 10 via the scissor frame 30. The lifting device 40 is fixed to the scissor frame 30 and is used to control the lifting platform 20 to rise or fall. The moving device is located on the side of the lifting platform 20 near the base frame 10 and is used to move the mobile lifting platform 1 when the lifting platform 20 descends to the point where the moving device contacts the ground.

[0030] Specifically, the lifting platform 20 in this embodiment includes a platform and extension seats 22 extending toward the base frame 10. Each of the four ends of the platform is provided with an extension seat 22, which is used to mount a moving device. Optionally, the moving device in this embodiment is a caster wheel 51. Optionally, in other embodiments, the moving device may also be other devices capable of moving the mobile lifting platform 1, such as a wheeled structure other than a caster wheel, or a tracked structure. The specific structure of the lifting platform 20 only needs to be adjusted based on the provided moving device to make the two compatible.

[0031] Furthermore, the lifting platform 20 in this embodiment also includes baffles 21 disposed on opposite sides of the platform, wherein the baffles 21 are used to prevent unloading devices or stacked goods that have moved to the platform from sliding when the lifting platform 20 is raised or lowered, thereby causing them to fall.

[0032] Furthermore, the mobile lifting platform 1 in this embodiment is also provided with an extension plate 60. The extension plate 60 is disposed on the side wall of the platform and is rotatably connected to the platform. When the extension plate 60 is raised to be flush with the platform, it facilitates the unloading device to move from the platform to the unloading platform to load goods, or facilitates the unloading device to move from the unloading platform to the platform, so that goods can be unloaded from the unloading platform to a transport vehicle or the ground using the unloading device and the mobile lifting platform 1. In this embodiment, the extension plate 60 is disposed between two baffles 21 to prevent the baffles 21 from obstructing the unloading device's movement.

[0033] In this embodiment, the lifting device 40 is composed of a first driving structure 41 and a second driving structure 42. The first driving structure 41 and the second driving structure 42 are engaged by a rack and pinion structure. When the lifting device 40 controls the lifting platform 20 to rise or fall, the first driving structure 41 and the second driving structure 42 move in opposite directions or towards each other along the extension direction of the rack and pinion structure.

[0034] In this embodiment, the scissor lift 30 consists of a first support rod 31 and a second support rod 32 arranged in a cross configuration. The first end of the first support rod 31 is slidably connected to the base frame 10, and the second end of the first support rod 31 is fixedly connected to the side of the lifting platform 20 near the base frame 10. The first end of the second support rod 32 is slidably connected to the side of the lifting platform 20 near the base frame 10, and the second end of the second support rod 32 is fixedly connected to the base frame 10. When the lifting device 40 controls the lifting platform 20 to rise or fall, the first end of the first support rod 31 slides relative to the base frame 10, and the first end of the second support rod 32 slides relative to the lifting platform 20. The sliding direction of the first support rod 31 and the second support rod 32 is the spacing direction of the two baffles 21.

[0035] Optionally, the scissor frame 30 in this embodiment includes a central shaft 33 and two sets of first support rods 31 and second support rods 32. Each set of first support rods 31 and second support rods 32 has a shaft hole at its intersection, through which the central shaft 33 passes to fix the two sets of first support rods 31 and second support rods 32 and synchronize their sliding distances. Furthermore, a lifting device 40 is disposed between the two sets of first support rods 31 and second support rods 32. The first support rods 31 and second support rods 32 further protect the lifting device 40, preventing it from sliding and falling off due to external impact.

[0036] Furthermore, the shear frame 30 in this embodiment also includes a first fixing rod 38 and a second fixing rod 39. The first fixing rod 38 connects two sets of first support rods 31, and the second fixing rod 39 connects two sets of second support rods 32. The first end of the first drive structure 41 is fixed to the first fixing rod 38, and the first end of the second drive structure 42 is fixed to the second fixing rod 39. The second end of the first drive structure 41 and the second end of the second drive structure 42 are engaged by a rack and pinion structure.

[0037] In this embodiment, the first drive structure 41 includes a hydraulic rod 411 and a first toothed clamping bar 412. The fixed end of the hydraulic rod 411 is disposed on the first fixed rod 38, and the telescopic end of the hydraulic rod 411 is fixedly connected to the second drive structure 42. The first toothed clamping bar 412 is disposed on the side of the hydraulic rod 411 near the base frame 10. Specifically, the fixed end of the hydraulic rod 411 can be a hydraulic cylinder, and the telescopic end of the hydraulic rod 411 can be a piston rod.

[0038] In this embodiment, the second drive structure 42 includes a fixed frame 421 and an electric cylinder (not shown). The first end of the fixed frame 421 is fixedly mounted on the second fixed rod 39, and the second end of the fixed frame 421 forms a second toothed clamping bar 422. The first toothed clamping bar 412 is engaged with the second toothed clamping bar 422. The electric cylinder is mounted on the second end of the fixed frame 421, specifically on a crossbar on the side away from the second toothed clamping bar 422, for lifting the second toothed clamping bar 422.

[0039] Specifically, in this embodiment, the fixing frame 421 is a rotatable structure. The first end of the fixing frame 421 and the second end of the fixing frame 421 are set at an angle. The middle part of the fixing frame 421 can be connected to the first end and the second end through a rotating shaft.

[0040] In this embodiment, the base frame 10 is provided with a first slide rail 11, the first end of the first support rod 31 is provided with a first mounting hole, and the first roller 34 is fixed to the first support rod 31 by a first mounting shaft passing through the first mounting hole, and the first roller 34 is slidably disposed on the first slide rail 11. In this embodiment, the lifting platform 20 is provided with a second slide rail 23 on the side near the base frame 10, the first end of the second support rod 32 is provided with a second mounting hole, and the second roller 35 is fixed to the second support rod 32 by a second mounting shaft passing through the second mounting hole, and the second roller 35 is slidably disposed on the second slide rail 23.

[0041] The second end of the first support rod 31 is provided with a second mounting bracket 37, and the second end of the first support rod 31 is fixedly connected to the side of the lifting platform 20 near the base frame 10 through the second mounting bracket 37. The second end of the second support rod 32 is provided with a first mounting bracket 36, and the second end of the second support rod 32 is fixedly connected to the base frame 10 through the first mounting bracket 36.

[0042] Specifically, the first mounting bracket 36 is fixed to the base frame 10, and the second mounting bracket 37 is fixed to the side of the lifting platform 20 near the base frame 10. The second end of the first support rod 31 and the second end of the second support rod 32 are provided with mounting holes, which are fixed to the corresponding mounting brackets by fasteners passing through the mounting holes. Optionally, the mounting holes in this embodiment can be blind holes, and the fasteners can be blind posts; or the mounting holes can be screw holes, and the fasteners can be studs; or the mounting holes and fasteners can be other fixing structures.

[0043] The mobile lifting platform 1 of this application consists of a base frame 10, a lifting platform 20, a scissor frame 30, a lifting device 40, and a moving device 50. The lifting platform 20 is fixed to the base frame 10 via the scissor frame 30. The lifting device 40 is fixed to the scissor frame and is used to control the lifting platform to rise or fall, realizing the basic lifting function of the mobile lifting platform. The moving device is located on the side of the lifting platform 20 near the base frame 10. It is used to move the mobile lifting platform 1 when the lifting platform 20 descends to the point where the moving device contacts the ground, thus enabling the mobile lifting platform 1 to move and enhancing its flexibility. The lifting device 40 consists of a first drive structure 41 and a second drive structure 42 engaged by a rack and pinion structure. When the lifting device 40 controls the lifting platform to rise or fall, the first drive structure 41 and the second drive structure 42 move in opposite directions or towards each other along the extension direction of the rack and pinion structure. The rack and pinion structure can increase the moving friction of the lifting device 40, effectively preventing the lifting device 40 from slipping and falling off, and improving the stability of the mobile lifting platform 1.

[0044] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A mobile lifting platform, characterized in that, The mobile lifting platform includes a base frame, a lifting platform, and a scissor frame. The lifting platform is fixed to the base frame via the scissor frame. A lifting device is installed on the scissor frame and fixed to it for controlling the lifting platform to rise or fall. A moving device is installed on the side of the lifting platform near the base frame for moving the mobile lifting platform when it descends to the point where the moving device contacts the ground. The lifting device consists of a first drive structure and a second drive structure, which are engaged by a rack and pinion structure. When the lifting device controls the lifting platform to rise or fall, the first drive structure and the second drive structure move in opposite directions or towards each other along the extension direction of the rack and pinion structure.

2. The mobile lifting platform according to claim 1, characterized in that, The scissor lift consists of a first support rod and a second support rod arranged in a cross configuration. The first end of the first support rod is slidably connected to the base frame, and the second end of the first support rod is fixedly connected to the side of the lifting platform near the base frame. The first end of the second support rod is slidably connected to the side of the lifting platform near the base frame, and the second end of the second support rod is fixedly connected to the base frame. When the lifting device controls the lifting platform to rise or fall, the first end of the first support rod slides relative to the base frame, and the first end of the second support rod slides relative to the lifting platform.

3. The mobile lifting platform according to claim 2, characterized in that, The shear frame includes a central shaft and two sets of first support rods and second support rods. Each set of first support rods and second support rods has a shaft hole at the intersection. The central shaft passes through the shaft hole to fix the two sets of first support rods and second support rods and synchronize the sliding distance of the two sets of first support rods and second support rods.

4. The mobile lifting platform according to claim 3, characterized in that, The shear frame further includes a first fixed rod and a second fixed rod. The first fixed rod connects two sets of the first support rods, and the second fixed rod connects two sets of the second support rods. The first end of the first drive structure is fixed to the first fixed rod, and the first end of the second drive structure is fixed to the second fixed rod. The second end of the first drive structure and the second end of the second drive structure are engaged by a rack and pinion structure.

5. The mobile lifting platform according to claim 4, characterized in that, The first drive structure includes a hydraulic rod and a first toothed clamp. The fixed end of the hydraulic rod is disposed on the first fixed rod, and the telescopic end of the hydraulic rod is fixedly connected to the second drive structure. The first toothed clamp is disposed on the side of the hydraulic rod near the base frame.

6. The mobile lifting platform according to claim 5, characterized in that, The second drive structure includes a fixed frame and an electric cylinder. The first end of the fixed frame is fixedly mounted on the second fixed rod, and the second end of the fixed frame forms a second toothed clamping bar. The first toothed clamping bar and the second toothed clamping bar are engaged. The electric cylinder is located at the second end of the fixed frame and is used to lift the second toothed clamping bar. The fixed frame is a rotatable structure, and the first end and the second end of the fixed frame are set at an angle.

7. The mobile lifting platform according to claim 2, characterized in that, The base frame is provided with a first slide rail, the first end of the first support rod is provided with a first mounting hole, the first roller is fixed to the first support rod by a first mounting shaft passing through the first mounting hole, and the first roller is slidably disposed on the first slide rail.

8. The mobile lifting platform according to claim 2, characterized in that, The lifting platform is provided with a second slide rail on the side near the base frame. The first end of the second support rod is provided with a second mounting hole. The second roller is fixed to the second support rod by a second mounting shaft passing through the second mounting hole, and the second roller is slidably disposed on the second slide rail.

9. The mobile lifting platform according to claim 1, characterized in that, The lifting platform includes a platform and extension seats extending toward the base frame. The extension seats are provided at all four ends of the platform and are used to install the moving device.

10. The mobile lifting platform according to claim 9, characterized in that, The moving device is a swivel wheel.

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