elevating platform

Abstract

The application provides a lifting platform, which comprises a platform body and an auxiliary mechanism. The platform body comprises a supporting base, a bearing table and a hydraulic driving part. The bearing table has a first end and a second end arranged oppositely, and the first end is rotationally connected to the supporting base. The hydraulic driving part is drivingly connected to the bearing table, and is used for driving the bearing table to switch between a first state and a second state. The height of the bearing table relative to the ground in the first state is lower than that in the second state. The auxiliary mechanism is connected to the bearing table and is adjacent to the second end of the bearing table. During the conversion of the bearing table from the first state to the second state, the auxiliary mechanism is in contact with the ground, so as to apply a support force, which is away from the ground, to the bearing table. The application can reduce the initial pressure of the hydraulic cylinder at the starting moment, and improves the safety of the lifting platform.

Description

Technical Field

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

[0002] In industrial warehousing and logistics loading and unloading operations, the loading platform (commonly known as the platform) serves as a key transfer node connecting the warehouse floor and the cargo compartment of transport vehicles. Its core function is to compensate for the height difference between the platform and the cargo compartment floor, thereby providing a smooth driving channel for mobile handling equipment such as forklifts and manual hydraulic pallet trucks.

[0003] In related technologies, shipping platforms typically employ hydraulic cylinder direct-drive or scissor lift structures. Hydraulic cylinder direct-drive platforms usually have single or multiple hydraulic cylinders arranged vertically or at an angle between the platform base and the platform surface. The extension and retraction of the hydraulic cylinder piston rods directly drive the platform to rise and fall, adjusting the height difference between the platform surface and the truck bed.

[0004] However, the hydraulic cylinders mentioned above are subjected to a large initial pressure at the moment of startup, which can easily lead to wear and tear on the hydraulic seals and reduce the safety of the lifting platform. Utility Model Content

[0005] In view of the above problems, this application provides a lifting platform that can reduce the initial pressure of the hydraulic cylinder at the moment of start-up, thereby improving the safety of the lifting platform.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] This application provides a lifting platform, which includes:

[0008] The platform body includes a support base, a carrier platform, and a hydraulic drive component. The carrier platform has a first end and a second end that are disposed opposite to each other. The first end is rotatably connected to the support base, and the hydraulic drive component is driven to drive the carrier platform to switch between a first state and a second state. In the first state, the height of the carrier platform relative to the ground is lower than that in the second state.

[0009] An auxiliary mechanism is connected to the support platform and is adjacent to the second end of the support platform; during the transition of the support platform from the first state to the second state, the auxiliary mechanism contacts the ground to apply a supporting force away from the ground to the support platform.

[0010] In one possible implementation, the auxiliary mechanism includes an elastic support member, one end of which is connected to the side of the support platform facing the ground. In the first state, the elastic support member is in a compressed state, and the other end of the elastic support member is used to abut against the ground.

[0011] When the support platform transitions from the first state to the second state, the elastic support member transitions from a compressed state to an extended state to apply the ground-removing support force to the support platform.

[0012] In one possible implementation, the auxiliary mechanism further includes a mounting base and support rollers, the mounting base being connected to the side of the support platform facing the ground;

[0013] The mounting base has a mounting cavity, one end of the elastic support is connected to the inner wall of the mounting cavity, and the other end of the elastic support is connected to the support roller;

[0014] At least a portion of the support roller protrudes from the mounting cavity.

[0015] In one possible implementation, the auxiliary mechanism further includes a connector, one end of which is connected to the elastic support and the other end of which is connected to the support roller.

[0016] In one possible implementation, the support platform is hinged to the support base via a first hinge seat, and the output end of the hydraulic drive is hinged to the support platform via a second hinge seat.

[0017] In one possible implementation, the platform body further includes a drive unit and a connecting tongue, the connecting tongue being rotatably connected to the support platform and adjacent to the second end;

[0018] The driving component is connected to the support platform and is driven to connect the connecting tongue plate to drive the connecting tongue plate to rotate relative to the support platform.

[0019] In one possible implementation, the connecting tongue plate is rotatably connected to the surface of the support platform facing the ground via a third hinge seat, and the orthographic projection of the connecting tongue plate on the support platform is located on the support platform, and the length of the orthographic projection in the length direction of the support platform is greater than or equal to 200mm.

[0020] In one possible implementation, the lifting platform further includes a control box located on one side of the platform body, and a controller is provided inside the control box. The controller is electrically connected to the hydraulic drive component and the drive component.

[0021] In one possible implementation, the control box is further provided with an operating element, which is connected to the controller and is used to control the action of the corresponding driving element.

[0022] In one possible implementation, the support platform includes a support frame and a platform connected to the support frame;

[0023] The platform has a grid structure.

[0024] In the lifting platform provided in this application embodiment, an auxiliary mechanism is provided, which is connected to the support platform and adjacent to its second end (such as the lifting end of the support platform). During the process of the hydraulic drive unit moving the support platform from a first state to a second state, the auxiliary mechanism contacts the ground to apply a supporting force away from the ground to the support platform. This allows the load directly borne by the hydraulic drive unit during the initial lifting of the support platform to be distributed, and the torque output by the hydraulic drive unit changes from concentrated force to a force-sharing mechanism that works in conjunction with the auxiliary support. This significantly reduces the pressure peak at the moment of hydraulic drive unit startup, extends the service life of the hydraulic seals, and thus improves the safety of the lifting platform.

[0025] In addition to the technical problems solved by the embodiments of this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that the lifting platform provided by the embodiments of this application can solve, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] Figure 1 A schematic diagram illustrating different states of the lifting platform provided in the embodiments of this application;

[0028] Figure 2 A schematic diagram of the platform body and various hinge seats of the lifting platform provided in the embodiments of this application;

[0029] Figure 3 A side view of the lifting platform provided in an embodiment of this application;

[0030] Figure 4 A top view of the lifting platform provided in the embodiments of this application;

[0031] Figure 5 The state of the lifting platform and auxiliary mechanism provided in the embodiments of this application. Figure 1 ;

[0032] Figure 6 The state of the lifting platform and auxiliary mechanism provided in the embodiments of this application. Figure 2 .

[0033] Figure label:

[0034] 100. Platform body; 110. Support base; 120. Load-bearing platform; 121. Load-bearing frame; 1211. Longitudinal beam; 1212. Crossbeam; 122. Platform surface; 123. Baffle; 130. Hydraulic drive component; 140. Drive component; 150. Connecting tongue plate;

[0035] 200. Auxiliary mechanism; 210. Elastic support component; 220. Mounting base; 221. Mounting cavity; 230. Support roller; 240. Connecting component;

[0036] 310. First hinge seat; 320. Second hinge seat; 330. Third hinge seat; 340. Fourth hinge seat;

[0037] 400. Control box;

[0038] 500. First limit switch;

[0039] 600. Second limit switch;

[0040] 10. Ground.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0043] As described in the background art, the hydraulic cylinders in related technologies experience significant initial pressure upon startup. This is because the hydraulic platform is heavy, and when starting from a low position and rising, the drive mechanism often needs to directly overcome the platform's own weight and initial resistance, resulting in concentrated hydraulic load during the lifting phase. This can easily lead to problems such as high starting pressure, unstable operation, and accelerated system wear, thereby reducing the safety of the lifting platform.

[0044] To address the aforementioned technical problems, this application provides a lifting platform. By incorporating an auxiliary mechanism connected to and adjacent to the second end of the support platform (such as the lifting end of the platform), the auxiliary mechanism contacts the ground during the movement of the support platform from a first state to a second state driven by the hydraulic drive component. This applies a supporting force away from the ground to the support platform. In this way, the load directly borne by the hydraulic drive component during the initial lifting of the platform is distributed, and the torque output by the hydraulic drive component changes from concentrated force to a force-sharing mechanism that works in conjunction with the auxiliary support. This significantly reduces the pressure peak at startup of the hydraulic drive component, extends the service life of the hydraulic seals, and thus improves the safety of the lifting platform.

[0045] To make the above-mentioned objectives, features, and advantages of the embodiments of this application more apparent and understandable, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. 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.

[0046] like Figure 1 As shown in the figure, this application embodiment provides a lifting platform, which is typically used in loading and unloading scenarios such as warehousing logistics and manufacturing workshops to match carriages of different heights in order to achieve smooth transfer of goods.

[0047] The lifting platform includes a platform body 100 and an auxiliary mechanism 200. The platform body 100, as the main component of the lifting platform, is used to support the goods to be loaded and unloaded and to provide the installation conditions for the rotating and lifting of the support platform 120.

[0048] like Figure 1 and Figure 2 As shown, in some embodiments, the platform body 100 includes a support base 110, a support platform 120, and a hydraulic drive component 130, which is drivenly connected to the support platform 120. The number of hydraulic drive components 130 can be one or two. For example, there are two hydraulic drive components 130, and each hydraulic drive component 130 is a hydraulic cylinder with a diameter of 70 mm and a stroke of 440 mm.

[0049] The support base 110 can be fixedly connected to the ground or other workbench via fasteners or directly. It should be noted that when goods are located at higher levels (such as a two-story warehouse), the support base can be fixed to the edge of the upper floor slab. Furthermore, the structure of the support base 110 can be any of the following: a box-type steel beam frame, a welded channel steel base, or a plate-shaped base, as long as it can provide support and a mounting platform.

[0050] Continue to refer to Figure 1 The support platform 120 has a first end and a second end that are arranged opposite to each other. The first end is rotatably connected to the support base 110, that is, the first end is a hinged end, which can be rotatably connected to the support base by means of hinge or pin. In this way, under the drive of the hydraulic drive component, the support platform 120 can rotate relative to the support base, so that the support platform 120 can switch between the first state and the second state, thereby enabling the lifting platform to adapt to carriages of different heights.

[0051] It should be noted that, with Figure 1 and Figure 2 Taking the orientation shown as an example, the first end of the support platform 120 is the left end, and the second end of the support platform 120 is the right end.

[0052] In this case, the height of the support platform 120 relative to the ground 10 in the first state is lower than its height relative to the ground 10 in the second state. Alternatively, it can be understood that the first state is a low position, and the second state can be a high position, with "low" and "high" being relative terms. Figure 1 Taking the indicated orientation as an example, looking from bottom to top, if one state is below the horizontal plane and the other is level with the horizontal plane, the former is the first state and the latter is the second state. If both states are above the horizontal plane, the one with the lower relative height is the first state and the one with the higher relative height is the second state.

[0053] It should be noted that the support platform 120 can be a single plate or other structural forms. In one possible implementation, it combines... Figure 1 and Figure 3 The support platform 120 includes a support frame 121 and a platform 122 connected to the support frame 121; the platform 122 is a grid structure.

[0054] The load-bearing frame 121 can have multiple crossbeams 1212 and multiple longitudinal beams 1211 connected horizontally and vertically. For example, there are two longitudinal beams 1211, which are 3900mm Q355B I-beams. There are six crossbeams 1212, with the two longitudinal beams 1211 and six crossbeams 1212 welded together to form a grid-like load-bearing frame 121. This ensures sufficient load-bearing capacity while effectively reducing the overall weight of the platform 120, thus reducing the lifting load on the hydraulic drive unit 130 and further reducing the energy consumption and starting pressure of the hydraulic drive unit 130. Furthermore, the structural safety factor of the load-bearing frame 121 is greater than or equal to 3, ensuring that plastic deformation of the platform 120 is reduced during large-span lifting processes, thereby improving the safety of the entire lifting platform.

[0055] like Figure 3As shown, the platform 122 is welded to the top surface of the supporting frame 121, and the platform 122 has a grid structure with a thickness of 5mm. Its hollow design ensures the flatness of the platform 122 while increasing the friction between the platform 122 and the forklift tires, further improving the stability and safety of the handling equipment when traveling on the supporting platform 120.

[0056] like Figure 4 As shown in the embodiment of this application, the carrying platform 120 also includes two baffles 123. The two baffles 123 are connected to the platform 122 and are arranged at intervals along the width direction of the platform 122 to block the platform 122 and improve the safety of the cargo transfer process.

[0057] like Figure 5 and Figure 6 As shown, the auxiliary mechanism 200 is connected to the support platform 120 and is located adjacent to the second end of the support platform 120. The auxiliary mechanism 200 can be fixedly connected to the ground-facing side of the support platform 120, for example, by welding to securely install the auxiliary mechanism 200 to the lower surface of the support platform 120, ensuring the connection strength between the auxiliary mechanism 200 and the support platform 120. The auxiliary mechanism 200 can also be connected to the ground-facing side of the support platform 120 using a detachable fixing connection method (such as bolts), which improves the ease of installation of the auxiliary mechanism 200.

[0058] During the process when the hydraulic drive component 130 drives the support platform 120 to switch from the first state to the second state (such as when the state of the support platform 120 changes from the first state to the second state), Figure 5 As shown Figure 6 (Transformation) When the support platform 120 begins to rise and has not yet completely left the initial stress state, the auxiliary mechanism 200 located near the second end remains in contact with the ground and continuously provides an upward reaction force as the support platform 120 continues to rotate. The direction of this reaction force enables the load that the hydraulic drive component 130 needs to bear directly in the initial stage of the lifting of the support platform 120 to be distributed (such as the auxiliary mechanism 200 being able to bear 30% to 40% of the weight of the lifting platform).

[0059] This configuration, through the combination of hydraulic drive and temporary support, allows the support platform 120 to receive additional support during the initial lifting phase, resulting in a more gradual force distribution during the lifting stage. The instantaneous pressure borne by the hydraulic drive component 130 is dispersed, significantly reducing the pressure peak at the moment of start-up of the hydraulic drive component 130, extending the service life of the hydraulic seals, and thus improving the safety of the lifting platform.

[0060] It should be noted that there are multiple options for the implementation of auxiliary mechanisms that can provide temporary support.

[0061] In one possible implementation, the auxiliary mechanism 200 can be a hydraulic outrigger, with one end fixedly connected to the lower surface of the support platform 120 and the other end being a movable end. In a first state, the movable end of the hydraulic outrigger extends downward and contacts the ground, applying a supporting force away from the ground to the support platform 120; in a second state, the movable end of the hydraulic outrigger retracts upward and separates from the ground, and the auxiliary mechanism stops applying the supporting force.

[0062] In one possible implementation, the auxiliary mechanism 200 includes an elastic support 210, one end of which is connected to the first side of the support platform 120 facing the ground. In a first state, the elastic support 210 is in a compressed state, and the other end of the elastic support 210 is used to abut against the ground. The elastic support 210 may include a cylindrical helical compression spring, a rubber elastic column, or a combination of a spring and a cushioning rubber.

[0063] When the hydraulic drive component 130 drives the support platform 120 to transition from the first state to the second state, the elastic support component 210 gradually recovers from the initial compressed state to the extended state. During the recovery process, it continuously applies a support force away from the ground to the support platform 120, thereby forming an auxiliary lifting effect on the hydraulic drive component 130.

[0064] In this way, during the initial lifting phase, the supporting force formed by the elastic support member 210 and the starting force of the hydraulic drive member 130 work together. As a result, the hydraulic drive member 130 does not need to overcome the entire weight and initial resistance of the support platform 120 independently. This reduces the starting pressure of the hydraulic drive member 130 and decreases the instantaneous load peak, making the rotation process of the support platform 120 more stable. At the same time, it can also minimize the wear of the hydraulic seals.

[0065] As the support platform 120 continues to rise and gradually leaves the ground, the elastic support 210 can be released by its own rebound. The supporting force it generates can be reduced as the elevation angle of the support platform 120 gradually increases, thus avoiding the shaking of the support platform caused by a sudden increase or decrease in driving force. This makes the rotation process of the support platform 120 more stable and improves the safety of the lifting process of the support platform 120.

[0066] In one possible implementation, the auxiliary mechanism 200 further includes a mounting base 220 and support rollers 230, the mounting base 220 being connected to the ground-facing side of the support platform 120. For example, the mounting base 220 may be fixedly connected to the ground-facing side of the support platform 120 by welding.

[0067] The mounting base 220 has a mounting cavity 221, one end of the elastic support 210 is connected to the inner wall of the mounting cavity 221, and the other end of the elastic support 210 is connected to the support roller 230. At least a portion of the support roller 230 protrudes from the mounting cavity 221.

[0068] In this embodiment, the elastic support 210 can be a spring. One end of the elastic support 210 can be fixedly connected to the inner wall of the mounting cavity 221, and the other end can be fixedly connected to the support roller 230. Thus, the elastic support 210 can be housed in the mounting cavity 221, and the mounting base 220 can protect the elastic support 210, reducing the damage to the elastic support 210 caused by the external environment and improving the safety and service life of the elastic support 210.

[0069] At least a portion of the support roller 230 protrudes from the mounting cavity 221, allowing its outer peripheral surface or lower wheel surface to extend beyond the outer contour of the mounting base 220 and directly contact the ground, thereby achieving rolling support and grounding transition. Exemplarily, the support roller 230 may be a cylindrical roller, a spherical roller, or a rimmed guide roller, and its wheel body may be made of polyurethane, nylon, rubber-coated metal core, or other wear-resistant composite materials.

[0070] When the support platform 120 is in the first state, the support roller 230 extends at least partially out of the mounting cavity 221 and contacts the ground under the preload of the elastic support member 210, forming an initial support point and bearing part of the weight of the support platform 120 near the second end. As the hydraulic drive member 130 continues to operate, the support platform 120 gradually rises, and the relative position between the ground and the support roller 230 changes. The support roller 230 rolls on the ground or moves slightly along the contact point, forming a certain amount of rolling friction, sharing part of the starting torque of the hydraulic drive member 130, and reducing the instantaneous load peak.

[0071] As the hydraulic drive unit 130 continues to operate, when the elevation angle of the support platform 120 exceeds a certain value, such as when the elevation angle exceeds 15°, the support platform 120 gradually lifts off the ground, the support rollers 230 automatically disengage, and all the load is transferred to the hydraulic drive unit 130.

[0072] In this embodiment, since the support roller 230 contacts the ground in a rolling manner, the support platform 120 can obtain a smoother transition support during the lifting process, avoiding the frictional resistance and impact load caused by traditional rigid supports during the start-up phase. At the same time, the mounting base 220 provides integrated constraint on the elastic support member 210 and the support roller 230, and improves the installation stability of the auxiliary mechanism 200.

[0073] In one possible implementation, the auxiliary mechanism 200 further includes a connector 240, one end of which is connected to the elastic support 210, and the other end of which is connected to the support roller 230. In this way, the connector 240 can be used to ensure the stability of the elastic support 210 and the support roller 230.

[0074] It should be noted that the connection relationship between the connector 240 and the support roller 230 and the mounting base 220 needs to be freely configured according to the structure of the mounting base 220. For example, a connecting hole is provided on the end face of the mounting base 220 facing the ground. If the size of the connecting hole is large, the support roller 230 and the connector 240 can be better housed in the mounting cavity of the mounting base 220. If the size of the connecting hole is small, the connector 240 passes through the connecting hole, so that part of the connector 240 is located inside the mounting cavity 221 and the other part is located outside the mounting cavity 221. At the same time, the support roller 230 is located outside the mounting cavity 221, which facilitates better contact between the support roller 230 and the ground, thereby providing a reverse force for the support platform 120.

[0075] In one possible implementation, the support platform 120 is hinged to the support base 110 via a first hinge seat 310, and the output end of the hydraulic drive 130 is hinged to the support platform 120 via a second hinge seat 320.

[0076] For example, the first hinge seat 310 includes a seat body and a hinge shaft. The seat body is fixedly connected to the support base 110, and the support platform 120 is hinged to the seat body via the hinge shaft. In this way, the linear extension and retraction of the hydraulic drive component can be converted into the arc motion of the support platform 120 around the hinge shaft, so that the height of the front end of the support platform 120 from the ground can be flexibly adjusted between 1000mm and 3300mm, adapting to most logistics vehicles.

[0077] In one possible implementation, the platform body 100 further includes a drive member 140 and a connecting tongue 150, the connecting tongue 150 being rotatably connected to the support platform 120 and adjacent to the second end. It should be noted that the connecting tongue 150 can be directly hinged to the second end of the support platform 120, or it can be hinged to the ground-facing surface of the support platform 120. Furthermore, the drive member 140 can be a hydraulic cylinder or a lead screw motor. For example, the drive member 140 is a hydraulic cylinder, the cylinder barrel of which is hinged to the support platform 120, and the piston rod of which is hinged to the bottom surface of the connecting tongue 150. The hydraulic cylinder has a diameter of 32 mm and a stroke of 200 mm.

[0078] The drive unit 140 is connected to the support platform 120 and is driven to connect the connecting tongue plate 150 to rotate relative to the support platform 120. It should be noted that the output end of the drive unit 140 can be connected to the support platform 120 through the fourth hinge seat 340.

[0079] The flip angle of the connecting tongue plate 150 is 0° to 90°, which forms a transitional connecting component between the support platform 120 and the carriage, thereby creating a passable connection between the support platform 120 and external vehicle carriages, platforms or other docking surfaces, and eliminating the height difference between the carriage and the support platform 120.

[0080] It should be noted that, in this embodiment, the connecting tongue 150 can be a plate-shaped flip-up structure, a segmented folding plate structure, or a tongue structure with a retractable end. The material of the connecting tongue 150 can be patterned steel plate, anti-slip steel plate, aluminum alloy plate, or composite anti-slip plate, to balance load-bearing strength and lightweight requirements.

[0081] This embodiment utilizes the cooperation of hydraulic drive component 130, drive component 140, support platform 120, and connecting tongue plate 150. After the hydraulic drive component 130 rotates the support platform 120 to a suitable docking position, the drive component 140 can independently drive the connecting tongue plate 150 to rotate around its connection point, gradually changing the connecting tongue plate 150 from a retracted state to an extended state, forming a continuous transition channel with the edge of the vehicle compartment or other external docking surfaces. This allows for precise docking after the support platform 120 has stabilized at a stable height, preventing the connecting tongue plate 150 from prematurely contacting external structures during lifting and lowering, thus avoiding jamming or impact. This ensures smooth entry and exit of the loading and unloading equipment, improving the stability and safety of related operations. Furthermore, the hydraulic drive component 130 and drive component 140 are independent drive components, allowing for independent control of the hydraulic drive component 130 and drive component 140 to achieve automated control of the lifting platform.

[0082] It should be noted that the connection between the connecting tongue 150 and the support platform 120 can be achieved in several ways. Please refer to [the relevant documentation / reference]. Figure 1 and Figure 2 In some possible implementations, one end of the connecting tongue plate 150 is hinged to the end face of the second end of the support platform 120 via the third hinge seat 330, which can increase the connection length between the connecting tongue plate 150 and the support platform 120.

[0083] In some other possible embodiments, the connecting tongue 150 is rotatably connected to the ground-facing surface of the support platform 120 via a third hinge seat, and the orthographic projection of the connecting tongue 150 onto the support platform 120 is located on the support platform 120, with a length greater than or equal to 200 mm along the length of the support platform 120. Alternatively, the overlap length between the connecting tongue 150 and the support platform 120 is not less than 200 mm. This ensures that the connecting tongue 150 can be stably overlapped at the second end of the support platform 120.

[0084] For example, in the non-working state (i.e., when retracted), the connecting tongue 150 can be stably attached to the second end of the support platform 120, thereby preventing the connecting tongue 150 from accidentally sagging or falling off due to gravity or vibration, thus improving the safety and reliability of the lifting platform in the non-working state.

[0085] For example, in the working state, sufficient overlap length ensures the connection strength and load-bearing capacity between the connecting tongue plate 150 and the support platform 120. When forklifts and other handling equipment drive from the support platform 120 into the truck bed via the connecting tongue plate 150, sufficient overlap length can effectively transfer part of the load from the connecting tongue plate 150 to the support platform 120, reduce the bending moment borne by the third hinge seat 330, and prevent the third hinge seat 330 from deforming or being damaged due to local overload, thereby improving the load-bearing capacity and service life of the connecting tongue plate 150.

[0086] In one possible implementation, the lifting platform also includes a control box 400, which is located on one side of the platform body 100. It should be noted that the control box 400 can be directly installed on the ground, or it can be installed on the support base 110 to prevent the control box 400 from moving with the lifting movement of the platform 120. This simplifies the wiring harness arrangement and improves the electrical connection between the control box 400 and various drive components or other electrical devices.

[0087] The control box 400 is equipped with a controller (not shown in the figure). The controller is electrically connected to the hydraulic drive unit 130 and drive unit 140. In this way, the operator can input working instructions to the controller through the control switch, external remote control terminal or host computer. The controller outputs corresponding control signals to the hydraulic drive unit 130 and drive unit 140 to control the start, stop and direction of movement of the hydraulic drive unit 130 and drive unit 140.

[0088] In one possible implementation, the control box 400 is further provided with an operating element (not shown in the figure), which is electrically connected to the controller and is used to control the action of the corresponding drive element. For example, the operating element is a control button, and there can be multiple control buttons, each corresponding to different actions such as raising the support platform, lowering the support platform, extending the connecting tongue, and retracting the connecting tongue.

[0089] It should be noted that the input of relevant action commands can also rely on an external remote control terminal or host computer. In this case, a wireless communication module can also be installed in the control box, and the controller communicates with the external remote control terminal or host computer through the curve communication module. In this way, the lifting platform has both local and remote control modes, and the operator can flexibly choose the control method according to the actual working scenario.

[0090] During operation, the operator can give the controller a lifting command via the control unit. Then, the controller controls the hydraulic drive unit 130 to drive the platform 120 from the first state to the second state. After the platform 120 reaches the second state, the operator controls the drive unit 140 to drive the connecting tongue plate 150 to flip downward, so that the height of the entire lifting platform matches the height of the carriage.

[0091] After the material handling is completed, upon receiving the command to lower the support platform 120, the drive component 140 is first controlled to drive the connecting tongue plate 150 to flip upward and retract. After the connecting tongue plate 150 is retracted to the overlapping state, the hydraulic drive component 130 is then controlled to drive the support platform 120 to switch from the second state to the first state.

[0092] It should be noted that, in order to better control the driving timing of the hydraulic drive components, the lifting platform provided in this embodiment of the application further includes a first limit switch 500 and a second limit switch 600. The first limit switch 500 is located at the upper limit position of the lifting platform's upward stroke and is used to detect whether the lifting platform has moved to its highest limit position. The first limit switch 500 is electrically connected to the controller and is used to send an upper limit trigger signal to the controller when triggered, thereby controlling the hydraulic drive component 130 to stop operating and sending a running command to the drive component 140 to facilitate the flipping of the connecting tongue plate 150, better matching carriages of different heights.

[0093] The second limit switch 600 is set at the lower limit position of the lifting platform's descent stroke to detect whether the lifting platform has moved to the lowest limit position. The second limit switch 600 is electrically connected to the controller and is used to send a lower limit trigger signal to the controller when triggered to control the hydraulic drive component 130 to stop operating.

[0094] It is important to understand that the first limit switch 500 and the second limit switch 600 can be mechanical limit switches, proximity switches, photoelectric switches, or magnetic induction switches. Taking a mechanical contact limit switch as an example, the first limit switch is installed at the position where the lifting platform rises to its highest permissible position and can contact the platform body or a stop block fixed on the platform; the second limit switch is installed at the position where the lifting platform descends to its lowest permissible position and can contact the platform body or a stop block.

[0095] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0096] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiments may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A lifting platform, characterized in that, include: The platform body (100) includes a support base (110), a carrier platform (120), and a hydraulic drive component (130). The carrier platform (120) has a first end and a second end that are disposed opposite to each other. The first end is rotatably connected to the support base (110), and the hydraulic drive component (130) is drivenly connected to the carrier platform (120) to drive the carrier platform (120) to switch between a first state and a second state. In the first state, the height of the carrier platform (120) relative to the ground is lower than its height relative to the ground in the second state. An auxiliary mechanism (200) is connected to the support platform (120) and is adjacent to the second end of the support platform (120); during the transition of the support platform (120) from the first state to the second state, the auxiliary mechanism (200) contacts the ground to apply a support force away from the ground to the support platform (120).

2. The lifting platform according to claim 1, characterized in that, The auxiliary mechanism (200) includes an elastic support (210), one end of which is connected to the side of the support platform (120) facing the ground. In the first state, the elastic support (210) is in a compressed state, and the other end of the elastic support (210) is used to abut against the ground. When the support platform (120) transitions from the first state to the second state, the elastic support member (210) transitions from a compressed state to an extended state to apply the ground-repellent support force to the support platform (120).

3. The lifting platform according to claim 2, characterized in that, The auxiliary mechanism (200) also includes a mounting base (220) and support rollers (230), the mounting base (220) being connected to the side of the support platform (120) facing the ground; The mounting base (220) has a mounting cavity (221), one end of the elastic support (210) is connected to the inner wall of the mounting cavity (221), and the other end of the elastic support (210) is connected to the support roller (230); At least a portion of the support roller (230) protrudes from the mounting cavity (221).

4. The lifting platform according to claim 3, characterized in that, The auxiliary mechanism (200) further includes a connector (240), one end of which is connected to the elastic support (210), and the other end of which is connected to the support roller (230).

5. The lifting platform according to any one of claims 1-4, characterized in that, The support platform (120) is hinged to the support base (110) via a first hinge seat (310), and the output end of the hydraulic drive unit (130) is hinged to the support platform (120) via a second hinge seat (320).

6. The lifting platform according to any one of claims 1-4, characterized in that, The platform body (100) also includes a drive unit (140) and a connecting tongue plate (150), the connecting tongue plate (150) being rotatably connected to the support platform (120) and adjacent to the second end; The drive unit (140) is connected to the support platform (120) and is driven to connect the connecting tongue plate (150) to drive the connecting tongue plate (150) to rotate relative to the support platform (120).

7. The lifting platform according to claim 6, characterized in that, The connecting tongue plate (150) is rotatably connected to the surface of the support platform (120) facing the ground via the third hinge seat (330), and the orthographic projection of the connecting tongue plate (150) on the support platform (120) is located on the support platform, and the length of the orthographic projection in the length direction of the support platform (120) is greater than or equal to 200mm.

8. The lifting platform according to claim 7, characterized in that, The lifting platform also includes a control box (400), which is located on one side of the platform body (100). The control box (400) contains a controller, which is electrically connected to the hydraulic drive component (130) and the drive component (140).

9. The lifting platform according to claim 8, characterized in that, The control box (400) is also provided with an operating component, which is connected to the controller and is used to control the action of the corresponding driving component.

10. The lifting platform according to any one of claims 1-4, characterized in that, The support platform (120) includes a support frame (121) and a platform (122) connected to the support frame (121); the platform (122) is a grid structure.

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