A loading and unloading platform and a loading and unloading method

Abstract

The application relates to a loading and unloading lifting platform and a loading and unloading method, which comprises a lifting platform, one side of the lifting platform is provided with an upper distance measuring assembly corresponding to the bottom surface of the vehicle compartment, the lifting platform comprises a lifting frame, the upper end of the lifting frame is provided with a working platform, a driving system is further arranged, the driving system drives the lifting frame to move, and then drives the working platform to lift, and one end of the working platform is provided with a turnover plate mechanism; the structure of the turnover plate mechanism is as follows: a turnover plate frame is arranged on the working platform, a turnover plate assembly is hingedly connected to the upper portion of the turnover plate frame, a driving structure is arranged on the turnover plate frame, and the driving structure is used for driving the turnover plate assembly to overturn, so that the turnover plate assembly cooperates with the bottom surface of the vehicle compartment. Therefore, the automation degree of the lifting platform and the loading and unloading efficiency are improved, the position requirement of the vehicle parking is reduced, and the safety of the personnel loading and unloading is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of loading and unloading platform, in particular to a loading and unloading lifting platform and a loading and unloading method. BACKGROUND

[0002] Current various e-commerce modes have profoundly changed our work and life, and e-commerce relies on the logistics industry. In the current logistics industry, the loading and unloading speed of goods directly affects the efficiency of logistics. At present, the loading and unloading of goods still relies on forklifts to transfer or manual adjustment of height by hydraulic lifting platforms before carrying goods.

[0003] At present, when using the lifting platform, the platform height needs to be adjusted manually, so that the upper plane of the platform is flush with the inner bottom surface of the vehicle box, and the vehicle parking position also requires to be parked in place. After the vehicle box and the platform are connected, the loading and unloading of goods is carried out. At present, this kind of vehicle box and platform connection method is low in efficiency, and there is a gap between the platform and the vehicle box, which affects the loading and unloading operation and is not high in safety. SUMMARY

[0004] The applicant provides a loading and unloading lifting platform and a loading and unloading method aiming at the above-mentioned shortcomings in the prior production technology, thereby improving the automation degree of the lifting platform and the efficiency of loading and unloading goods, reducing the position requirement of the vehicle parking, and improving the safety of personnel loading and unloading goods.

[0005] The technical scheme adopted by the present application is as follows:

[0006] A loading and unloading lifting platform, comprising a lifting platform, an upper distance measuring assembly corresponding to the inner bottom surface of the vehicle box is installed on one side of the lifting platform, the lifting platform comprises a lifting frame, a work platform is installed on the upper end of the lifting frame, a driving system drives the lifting frame to act, thereby driving the work platform to lift, and a flap mechanism is installed on one end of the work platform;

[0007] The structure of the flap mechanism is as follows: a flap frame is installed on the work platform, a flap assembly is hinged on the upper part of the flap frame, a driving structure is installed on the flap frame, and the driving structure is used to drive the flap assembly to overturn, so that the flap assembly cooperates with the inner bottom surface of the vehicle box.

[0008] Further technical schemes thereof are as follows:

[0009] The flap assembly comprises a main flap and an auxiliary flap, the main flap and the auxiliary flap are arranged side by side and are hinged with the flap frame, the number of driving structures is multiple, and the driving structures correspond to the main flap and the auxiliary flap one by one.

[0010] The turning plate frame is in sliding connection with the work platform, a first driver is installed at the lower part of the work platform, the moving direction of the output end of the first driver is parallel to the edge line of the end part of the work platform, the output end of the first driver is connected with the turning plate frame to drive the whole turning plate mechanism to move.

[0011] A first guide rail is installed at the side of the end part of the work platform, a second guide rail is installed at the bottom of the end part of the work platform, the length direction of the first guide rail and the second guide rail are both parallel to the edge line of the end part of the work platform.

[0012] A first sliding block matched with the first guide rail is installed on the turning plate frame, a second sliding block matched with the second guide rail is also installed on the turning plate frame, the number of the first sliding blocks and the second sliding blocks are both multiple.

[0013] The structure of the driving structure is as follows: a second driver is installed on the turning plate frame, the installation part of the second driver is hinged with the turning plate frame, a turning arm is further included, one end of the turning arm is a first hinge part, the other end of the turning arm is a second hinge part, the first hinge part is hinged with the lower surface of the turning plate assembly, the second hinge part is hinged with the turning plate frame, the turning arm between the first hinge part and the second hinge part is hinged with the output end of the second driver, the telescopic movement of the output end of the second driver drives the turning arm to move and further drives the turning plate assembly to turn over.

[0014] The turning arm includes a first connecting piece and a second connecting piece, one end of the first connecting piece is a first hinge part, the other end of the first connecting piece is a first connecting part, one end of the second connecting piece is a second hinge part, the other end of the second connecting piece is a second connecting part, the first connecting part and the second connecting part are hinged, the middle part of the second connecting piece is hinged with the output end of the second driver.

[0015] The turning plate assembly is perpendicular to the upper surface of the work platform after turning over upward, the turning plate assembly is perpendicular to the upper surface of the work platform after turning over downward.

[0016] A base is further included, an upwardly open pit is arranged on the upper surface of the base, a lifting platform is arranged in the pit, a side opening penetrating through the base is arranged on one side of the pit, the side opening corresponds to the turning plate mechanism.

[0017] Centering distance measuring assemblies are installed on both sides of the front of the turning plate mechanism, the centering distance measuring assemblies correspond to the side of the carriage.

[0018] A loading and unloading method of a loading and unloading lifting platform, comprising the following steps:

[0019] Vehicle preliminary positioning: parking the vehicle in the parking space corresponding to the lifting platform, and preliminarily corresponding the vehicle box tail to the lifting platform;

[0020] The work platform is lifted: the height of the bottom surface inside the vehicle box is measured by the upper distance measuring assembly and fed back to the control system, the control system controls the driving system of the lifting platform, and drives the work platform on the lifting platform to move, so that the height of the upper surface of the work platform is consistent with the height of the bottom surface inside the vehicle box;

[0021] The turning plate mechanism is centered: one end of the work platform is provided with a turning plate mechanism and a first driver, the first driver drives the turning plate mechanism to move to a position, so that the turning plate assembly of the turning plate mechanism is centered with the tail of the vehicle box according to the width position of the vehicle box;

[0022] The work platform is connected with the vehicle box: the driving structure on the turning plate mechanism drives the turning plate assembly to turn down and then lap with the bottom surface inside the vehicle box, and then the loading and unloading of goods between the vehicle box and the work platform can be carried out.

[0023] The beneficial effects of the present application are as follows:

[0024] The present application has the advantages of compact and reasonable structure, convenient operation, automatic adjustment of the height of the work platform by the upper distance measuring assembly, automatic connection of the work platform and the vehicle box by the driving structure driving the turning plate assembly to turn down, reduced requirements for the position of the vehicle, no need for the vehicle to be parked in place, even if there is a gap between the platform and the vehicle box, the loading and unloading operation can be carried out, the safety of personnel loading and unloading goods is improved, and the degree of automation of the lifting platform and the efficiency of loading and unloading goods are improved.

[0025] Meanwhile, the present application also has the following advantages:

[0026] (1) The turning plate assembly includes a main turning plate and a vice turning plate which are separately driven to turn by the driving structure, and the main turning plate or the main turning plate combined with the adjacent vice turning plate can be selected to turn, so that the lifting platform is suitable for vehicle boxes of different specifications.

[0027] (2) The structure that the first driver drives the turning plate frame to move makes the turning plate assembly centered with the tail of the vehicle box, facilitating good butt joint of the work platform and the vehicle box.

[0028] (3) The turning arm is arranged as a structure that the first connecting piece and the second connecting piece are hinged, so that the relative position of the first connecting piece and the second connecting piece changes within the movement range of the output end of the second driver, which not only enables the turning plate assembly to turn up greatly, but also enables the turning plate assembly to turn down greatly, facilitating position control of the turning plate assembly to adapt to various situations.

[0029] (4) The distance of the side surface of the vehicle box is measured by the centering distance measuring assembly to determine the width and position of the vehicle box, so that the turning plate assembly cooperating with the bottom surface inside the vehicle box is automatically centered with the tail of the vehicle box, and automatically adapts to different vehicle box widths. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1Structure diagram of the present application (flap assembly and the bottom surface of the car interior fit).

[0031] Figure 2 Exploded view of the present application.

[0032] Figure 3 Exploded view of the overall structure of the lifting platform and the flap mechanism of the present application.

[0033] Figure 4 Exploded view of the overall structure of the lifting platform and the flap mechanism of the present application (another perspective).

[0034] Figure 5 Structure diagram of the present application Figure 4 Enlarged view at A.

[0035] Figure 6 Structure diagram of the present application

[0036] Figure 7 Structure diagram of the present application (another perspective).

[0037] Figure 8 State diagram of the present application when the flap assembly and the bottom surface of the car interior fit.

[0038] Figure 9 State diagram of the present application when the flap assembly is flipped up.

[0039] Figure 10 State diagram of the present application when the flap assembly is flipped down.

[0040] Figure 11 Application scenario diagram of the present application when the flap assembly is flipped up.

[0041] Figure 12 Application scenario diagram of the present application when the flap assembly is flipped down.

[0042] 1, centering and ranging assembly; 2, anti-collision assembly; 3, base station; 31, pit; 310, side opening; 4, protective net; 6, upper ranging assembly; 8, lifting guard plate;

[0043] 5, lifting platform; 501, work platform; 502, drive system; 503, lifting frame; 51, first drive; 52, first guide rail; 53, second guide rail;

[0044] 7, flap mechanism; 71, flap assembly; 7101, main flap; 7102, auxiliary flap;

[0045] 72, flap frame; 7201, support plate; 7202, connecting rod; 7203, fixing frame; 7204, first sliding block; 7205, second sliding block;

[0046] 73, drive structure; 7301, second driver; 7302, second connecting member; 7303, first connecting member. DETAILED DESCRIPTION

[0047] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0048] As Figures 1-4 shown, the loading and unloading lifting platform of example one includes a lifting platform 5, one side of the lifting platform 5 is provided with an upper distance measuring assembly 6 corresponding to the inner bottom surface of the vehicle box, the lifting platform 5 includes a lifting frame 503, the upper end of the lifting frame 503 is provided with a work platform 501, and further includes a drive system 502, the drive system 502 drives the lifting frame 503 to move, thereby driving the work platform 501 to lift, and one end of the work platform 501 is provided with a flap mechanism 7. The upper surface of the work platform 501 is provided with a protective net 4 on both sides along the length direction of the flap mechanism 7, which is used to ensure the safety of the operator.

[0049] The structure of the flap mechanism 7 is as follows: it includes a flap frame 72 installed on the work platform 501, the upper part of the flap frame 72 is hingedly connected with a flap assembly 71, and the flap frame 72 is provided with a drive structure 73, which is used to drive the flap assembly 71 to flip, so that the flap assembly 71 cooperates with the inner bottom surface of the vehicle box.

[0050] In the above structure, the drive system 502 is a hydraulic system, which drives the scissor fork type lifting frame 503 to move through the driving mode of the hydraulic cylinder, and the structure of the lifting frame 503 is not limited to the scissor fork type structure; there are various installation schemes for the upper distance measuring assembly 6, which can be installed on the work platform 501 or on the ground beside the lifting platform 5; the structure of the upper distance measuring assembly 6 includes an installation arm, a distance measuring sensor is installed at the end of the installation arm, the distance measuring sensor measures the height of the inner bottom surface of the vehicle box when the tail of the vehicle box is preliminarily aligned with the lifting platform 5, the tail of the vehicle box is preliminarily aligned with the lifting platform 5, and the flap assembly 71 is driven by the drive structure 73 to flip downward and then lap joint with the inner bottom surface of the vehicle box.

[0051] The ground on both sides of the flap mechanism 7 or the lifting platform 5 is provided with a collision prevention assembly 2, which prevents collision when the tail of the vehicle box is preliminarily aligned with the lifting platform 5.

[0052] The upper distance measuring assembly 6 is provided to automatically adjust the height of the work platform 501 of the lifting platform 5, the flap assembly 71 is driven by the drive structure 73 to flip downward, the work platform 501 is automatically connected with the vehicle box, the position requirement of the vehicle parking is reduced, the vehicle does not need to be parked in place, the loading and unloading operation can be performed even if there is a gap between the platform and the vehicle box, the safety of the personnel loading and unloading is improved, and the degree of automation of the lifting platform and the efficiency of loading and unloading are improved.

[0053] AsFigures 6-7 As shown, the flap assembly 71 includes a main flap 7101 and a sub-flap 7102, the main flap 7101 and the sub-flap 7102 are arranged side by side and are hinged with the flap frame 72, the number of the driving structure 73 is multiple, and the driving structure 73 corresponds to the main flap 7101 and the sub-flap 7102 one by one.

[0054] The number of the main flap 7101 is one, and the number of the sub-flap 7102 is one or more, each main flap 7101 and sub-flap 7102 is controlled by an independent driving structure 73, so that the whole flap assembly 71 can select the main flap 7101 or select the main flap 7101 and its adjacent sub-flap 7102 combination to turn over when corresponding to different car body widths, realize the connection between the working platform 501 and the car body, and make the lifting platform 5 suitable for different specifications of the car body.

[0055] As shown, Figures 4-5 The flap frame 72 is slidably connected with the working platform 501, and the first driver 51 is installed at the lower part of the working platform 501, the moving direction of the output end of the first driver 51 is parallel to the edge line of the end of the working platform 501, and the output end of the first driver 51 is connected with the flap frame 72 to drive the whole flap mechanism 7 to move.

[0056] The first driver 51 can be a cylinder or an oil cylinder and other structures that can drive the flap frame 72 to move linearly, and the oil cylinder is preferred.

[0057] The structure of driving the flap frame 72 to move by the first driver 51 makes the flap assembly 71 cooperating with the inner bottom surface of the car body and the tail part of the car body centered, which is convenient for realizing the good butt joint of the working platform 501 and the car body.

[0058] As shown, Figures 4-6 The first guide rail 52 is installed on the side surface of the end of the working platform 501, and the second guide rail 53 is installed on the bottom surface of the end of the working platform 501, and the length direction of the first guide rail 52 and the second guide rail 53 is parallel to the edge line of the end of the working platform 501;

[0059] The first guide rail 52 is installed on the side surface of the end of the working platform 501, and the second guide rail 53 is installed on the bottom surface of the end of the working platform 501, and the length direction of the first guide rail 52 and the second guide rail 53 is parallel to the edge line of the end of the working platform 501;

[0060] The cooperation structure of the guide rail and the sliding block not only realizes the sliding connection of the flap frame 72 and the working platform 501, but also plays a bearing role for the flap mechanism 7. The cooperation mode of the guide rail and the sliding block is preferably the FDA series roller guide rail structure of AMS brand, as shown, Figures 4-6 In the case of low environmental cleanliness, the stability of the moving structure is improved.

[0061] The structure of the turnover plate frame 72 comprises a plurality of support plates 7201 arranged in parallel and at intervals, each support plate 7201 is an L-shaped plate structure, the plurality of support plates 7201 are connected by connecting rods 7202 to form a main frame, one side of the upper portion of the main frame is hingedly connected with the turnover plate assembly 71, and one side of the lower portion of the main frame is provided with a plurality of fixing frames 7203 corresponding to the driving structure 73.

[0062] As shown in Figures 7-10 , the structure of the driving structure 73 comprises a second driver 7301 mounted on the turnover plate frame 72, the mounting portion of the second driver 7301 is hingedly connected with the turnover plate frame 72, and the driving structure 73 further comprises a turnover arm, one end of the turnover arm is a first hinge portion, the other end of the turnover arm is a second hinge portion, the first hinge portion is hingedly connected with the lower surface of the turnover plate assembly 71, the second hinge portion is hingedly connected with the turnover plate frame 72, and the turnover arm between the first hinge portion and the second hinge portion is hingedly connected with the output end of the second driver 7301, the output end of the second driver 7301 is in telescopic movement to drive the turnover arm to move and further drive the turnover plate assembly 71 to overturn.

[0063] The second driver 7301 can be a pneumatic cylinder or an oil cylinder, and preferably an oil cylinder, and the mounting portion of the second driver 7301 is hingedly connected with the fixing frame 7203.

[0064] As shown in Figures 7-10 , the turnover arm comprises a first connecting piece 7303 and a second connecting piece 7302, one end of the first connecting piece 7303 is a first hinge portion, the other end of the first connecting piece 7303 is a first connecting portion, one end of the second connecting piece 7302 is a second hinge portion, the other end of the second connecting piece 7302 is a second connecting portion, the first connecting portion and the second connecting portion are hingedly connected, and the middle portion of the second connecting piece 7302 is hingedly connected with the output end of the second driver 7301.

[0065] The structure that the turnover arm is hingedly connected with the first connecting piece 7303 and the second connecting piece 7302 changes the relative positions of the first connecting piece 7303 and the second connecting piece 7302 within the movement range of the output end of the second driver 7301, which not only can realize the large-scale overturning of the turnover plate assembly 71 upward, but also can realize the large-scale overturning of the turnover plate assembly 71 downward, and is convenient for position control of the turnover plate assembly 71 to adapt to various situations.

[0066] As shown in Figures 9-10 , the turnover plate assembly 71 is perpendicular to the upper surface of the working platform 501 after overturning upward, and the turnover plate assembly 71 is perpendicular to the upper surface of the working platform 501 after overturning downward.

[0067] When the loading and unloading is completed, in order to prevent the goods on the work platform 501 from rolling or to ensure the safety of the operator on the work platform 501, the flap assembly 71 is turned up and perpendicular to the upper surface of the work platform 501, which plays the role of a guardrail, and also provides sufficient working space when the lifting platform 5 is preliminarily aligned with the tail of the truck box.

[0068] When the flap assembly 71 is turned down and perpendicular to the upper surface of the work platform 501, it serves as the installation state of the lifting platform 5. When the mechanical structure of the lifting platform 5 is being maintained, the operator is prevented from standing on or leaning against the flap assembly 71, and an accident is avoided in the case of failure of the second drive 7301.

[0069] The loading and unloading lifting platform of the second embodiment, based on the first embodiment, combines the lifting platform 5 with a fixed running platform, i.e., the base 3 in the present embodiment.

[0070] As shown in Figures 1-2 , Figures 11-12 , the upper surface of the base 3 is provided with a pit 31 opening upward, the lifting platform 5 is arranged in the pit 31, and a side opening 310 penetrating the base 3 is arranged on one side of the pit 31, corresponding to the flap mechanism 7.

[0071] When the work platform 501 of the lifting platform 5 is lowered to the low position, it is flush with the upper surface of the base 3, facilitating the transfer of goods between the work platform 501 and the base 3.

[0072] Lifting guards 8 cooperating with the pit 31 are installed on both sides of the work platform 501 along the length direction of the flap mechanism 7, preventing the operator on the base 3 from being pinched during the lifting and lowering of the work platform 501.

[0073] When the flap assembly 71 is turned down and perpendicular to the upper surface of the work platform 501, it is just located at the side opening 310. When the lifting platform 5 is in the shutdown state, the work platform 501 of the lifting platform 5 is lowered to the low position, and the flap assembly 71 is turned down to block the side opening 310, preventing personnel or foreign matter from entering the pit 31.

[0074] As shown in Figures 1-2 , Figures 11-12 , based on the first and second embodiments, a centering distance measuring assembly 1 is installed on both sides of the front of the flap mechanism 7, corresponding to the side of the truck box. The structure of the centering distance measuring assembly 1 includes a mounting column, and a distance measuring sensor is installed on the mounting column, corresponding to the side of the truck box. By measuring the distance from the centering distance measuring assembly 1 to the side of the truck box, the width and position of the truck box are determined, and the flap assembly 71 cooperating with the bottom surface of the truck box is automatically centered with the tail of the truck box, automatically adapting to different widths of the truck box.

[0075] The loading and unloading method of the loading and unloading lifting platform of the third embodiment comprises the following steps:

[0076] Vehicle preliminary positioning: the vehicle is parked in a parking space corresponding to the lifting platform 5, and the tail of the vehicle compartment is preliminarily corresponding to the lifting platform 5.

[0077] Lifting of the working platform 501: the height of the inner bottom surface of the vehicle compartment is measured by the upper distance measuring assembly 6 and fed back to the control system, the control system controls the driving system 502 of the lifting platform 5 to drive the working platform 501 on the lifting platform 5 to move, so that the height of the upper surface of the working platform 501 is consistent with the height of the inner bottom surface of the vehicle compartment.

[0078] Centering of the flap mechanism 7: one end of the working platform 501 is provided with the flap mechanism 7 and the first driver 51, at this time the flap assembly 71 of the flap mechanism 7 is in the upper turning position, according to the width position of the vehicle compartment, the first driver 51 drives the flap mechanism 7 to move the position, so that the flap assembly 71 of the flap mechanism 7 is centered with the tail of the vehicle compartment; this step can be manually operated by the control system, or the control system can be automatically controlled by the mechanical structure combined with the sensor.

[0079] Connection of the working platform 501 and the vehicle compartment: the driving structure 73 of the flap mechanism 7 drives the flap assembly 71 to turn down and lap with the inner bottom surface of the vehicle compartment, and then the loading and unloading of goods between the vehicle compartment and the working platform 501 can be carried out.

[0080] The loading and unloading method of the loading and unloading lifting platform of the fourth embodiment is mainly the same as that in the third embodiment:

[0081] Before centering the flap mechanism 7, the adaptability adjustment of the flap mechanism 7 and the width of the vehicle compartment is carried out:

[0082] The flap assembly 71 comprises a main flap 7101 and a sub-flap 7102, the main flap 7101 and the sub-flap 7102 are arranged side by side and are both hinged with the flap frame 72, the number of the main flap 7101 is one, and the number of the sub-flap 7102 is one or more, each main flap 7101 and sub-flap 7102 is controlled by an independent driving structure 73, and after the width of the vehicle compartment is determined, the driving structure 73 that needs to act when the working platform 501 is connected with the vehicle compartment is determined.

[0083] The above steps can be manually operated by the control system, or the control system can be automatically controlled by the mechanical structure combined with the sensor.

[0084] In the fifth embodiment, the centering distance measuring assembly 1 is installed on both sides in front of the flap mechanism 7, the centering distance measuring assembly 1 corresponds to the side of the vehicle compartment, and the loading and unloading method of the loading and unloading lifting platform is further improved, comprising the following steps:

[0085] I. Vehicle preliminary positioning: stop the vehicle in the parking space corresponding to the lifting platform 5, so that the tail of the vehicle box corresponds to the lifting platform 5.

[0086] II. Lifting of the working platform 501: measure the height of the bottom surface of the vehicle box interior by the upper distance measuring assembly 6 and feed back to the control system, and the control system controls the driving system 502 of the lifting platform 5 to drive the working platform 501 on the lifting platform 5 to move, so that the height of the upper surface of the working platform 501 is consistent with the height of the bottom surface of the vehicle box interior.

[0087] III. Adaptive adjustment of the turning plate mechanism 7 and the width of the vehicle box: the turning plate assembly 71 includes a main turning plate 7101 and a vice turning plate 7102, the main turning plate 7101 and the vice turning plate 7102 are arranged side by side and are hinged to the turning plate frame 72, the number of main turning plates 7101 is one, and the number of vice turning plates 7102 is one or more, each main turning plate 7101 and vice turning plate 7102 is controlled by an independent driving structure 73, and the centering distance measuring assembly 1 is installed on the front two sides of the turning plate mechanism 7, the position and width of the vehicle box are measured by the centering distance measuring assembly 1 and fed back to the control system, so that the driving structure 73 that needs to be actuated when the working platform 501 is connected with the vehicle box can be determined, and the automation of this step is realized.

[0088] IV. Centering of the turning plate mechanism 7: one end of the working platform 501 is provided with the turning plate mechanism 7 and the first driver 51, at this time the turning plate assembly 71 of the turning plate mechanism 7 is in the upturned position, according to the position and width of the vehicle box measured by the centering distance measuring assembly 1 in step III, the moving position of the first driver 51 driving the turning plate mechanism 7 is determined, and the turning plate assembly 71 of the turning plate mechanism 7 is centered with the tail of the vehicle box.

[0089] V. Connection of the working platform 501 and the vehicle box: the driving structure 73 of the turning plate mechanism 7 drives the turning plate assembly 71 to turn down and lap with the bottom surface of the vehicle box interior, and then the loading and unloading of goods between the vehicle box and the working platform 501 can be carried out, the driving structure 73 in this step is the driving structure 73 that needs to be actuated determined according to the width of the vehicle box measured by the centering distance measuring assembly 1 in step III.

[0090] The loading and unloading method of the loading and unloading platform of the above embodiment, by measuring the height of the bottom surface of the vehicle box interior by the upper distance measuring assembly 6, the height of the working platform 501 is automatically adjusted, the driving structure 73 drives the turning plate assembly 71 to turn down, and the working platform 501 is automatically connected with the vehicle box, which reduces the position requirement of the vehicle parking, improves the safety of the personnel loading and unloading goods, and also improves the automation degree of the lifting platform and the efficiency of loading and unloading goods.

[0091] Further, by measuring the distance of the side of the vehicle box by the centering distance measuring assembly 1, the width and position of the vehicle box are determined, the automatic centering of the flap assembly 71 with the bottom surface of the vehicle box and the automatic adaptation of the flap assembly 71 to different widths of the vehicle box are realized.

[0092] The above description is an explanation of the present application, not a limitation of the application, the scope of the present application is defined in the claims, within the protection scope of the present application, any form of modification can be made.

Claims

1. A load handling platform, characterized by: Including the lifting platform (5), one side of the lifting platform (5) is provided with the upper ranging assembly (6) corresponding to the inside bottom surface of the vehicle box, the lifting platform (5) comprises a lifting frame (503), the upper end of the lifting frame (503) is provided with a working platform (501), and a driving system (502) is further arranged, the driving system (502) drives the lifting frame (503) to act, and in turn drives the working platform (501) to lift, one end of the working platform (501) is provided with a flap mechanism (7); The structure of the flap mechanism (7) is that the flap mechanism (7) comprises a flap frame (72) mounted on the working platform (501), the upper part of the flap frame (72) is hingedly connected with a flap assembly (71), and a driving structure (73) is mounted on the flap frame (72); the driving structure (73) is used for driving the flap assembly (71) to overturn, so that the flap assembly (71) cooperates with the inside bottom surface of the vehicle box; The flap assembly (71) comprises a main flap (7101) and an auxiliary flap (7102), the main flap (7101) and the auxiliary flap (7102) are arranged side by side and are hingedly connected with the flap frame (72), the number of the driving structures (73) is multiple, the driving structures (73) correspond to the main flap (7101) and the auxiliary flap (7102) one by one, the driving structures (73) that need to act are determined according to the width of the vehicle box, and adaptive adjustment of the flap mechanism (7) and the width of the vehicle box is carried out; The flap frame (72) is slidably connected with the working platform (501), a first driver (51) is mounted on the lower part of the working platform (501), the moving direction of the output end of the first driver (51) is parallel to the end edge line of the working platform (501), the output end of the first driver (51) is connected with the flap frame (72), and in turn drives the whole flap mechanism (7) to move; Further comprising a base (3), an upwardly recessed pit (31) is arranged on the upper surface of the base (3), the lifting platform (5) is arranged in the pit (31), a side opening (310) penetrating through the base (3) is arranged on one side of the pit (31), the side opening (310) corresponds to the flap mechanism (7), when the working platform (501) of the lifting platform (5) is flush with the upper surface of the base (3), the cargo transfer between the working platform (501) and the base (3) is facilitated; The centering ranging assembly (1) is arranged on both sides in front of the flap mechanism (7), the centering ranging assembly (1) corresponds to the side surface of the vehicle box, is used for judging the width and position of the vehicle box, and in turn determines the moving position of the flap mechanism (7) driven by the first driver (51), so that the flap assembly (71) of the flap mechanism (7) is centered with the tail part of the vehicle box.

2. A cargo loading and unloading platform as claimed in claim 1, characterized in that: The first guide rail (52) is arranged on the end side surface of the working platform (501), the second guide rail (53) is arranged on the end bottom surface of the working platform (501), and the length directions of the first guide rail (52) and the second guide rail (53) are parallel to the end edge line of the working platform (501). The first sliding block (7204) matched with the first guide rail (52) is installed on the turnover plate frame (72), and the second sliding block (7205) matched with the second guide rail (53) is also installed on the turnover plate frame (72), and the number of the first sliding block (7204) and the second sliding block (7205) is multiple.

3. A cargo loading and unloading platform as claimed in claim 1, characterized in that: The driving structure (73) comprises a second driver (7301) installed on the turnover plate frame (72), and the mounting portion of the second driver (7301) is hinged to the turnover plate frame (72), and further comprises a turnover arm, one end of the turnover arm is a first hinge portion, the other end of the turnover arm is a second hinge portion, the first hinge portion is hinged to the lower surface of the turnover plate assembly (71), the second hinge portion is hinged to the turnover plate frame (72), and the turnover arm between the first hinge portion and the second hinge portion is hinged to the output end of the second driver (7301), and the telescopic movement of the output end of the second driver (7301) drives the turnover arm to move and further drives the turnover plate assembly (71) to overturn.

4. A cargo handling platform as claimed in claim 3, characterised in that: The turnover arm comprises a first connecting piece (7303) and a second connecting piece (7302), one end of the first connecting piece (7303) is a first hinge portion, the other end of the first connecting piece (7303) is a first connecting portion, one end of the second connecting piece (7302) is a second hinge portion, the other end of the second connecting piece (7302) is a second connecting portion, the first connecting portion and the second connecting portion are hinged, and the middle portion of the second connecting piece (7302) is hinged to the output end of the second driver (7301).

5. A cargo handling platform as claimed in claim 4, wherein: The turnover plate assembly (71) is perpendicular to the upper surface of the working platform (501) after being overturned upward, and the turnover plate assembly (71) is perpendicular to the upper surface of the working platform (501) after being overturned downward.

6. A loading and unloading method using the loading and unloading lifting platform according to any one of claims 1-5, characterized in that it comprises the following steps: Vehicle preliminary positioning: parking the vehicle in the parking space corresponding to the lifting platform (5), and preliminarily corresponding the tail of the vehicle box to the lifting platform (5); Working platform (501) lifting: measuring the height of the inner bottom surface of the vehicle box through the upper distance measuring assembly (6) and feeding back to the control system, and controlling the driving system (502) of the lifting platform (5) to drive the working platform (501) on the lifting platform (5) to move, so that the height of the upper surface of the working platform (501) is consistent with the height of the inner bottom surface of the vehicle box; Centering of the turnover mechanism (7): one end of the working platform (501) is provided with the turnover mechanism (7) and the first driver (51), and the first driver (51) drives the turnover mechanism (7) to move to the position corresponding to the width of the vehicle box, so that the turnover plate assembly (71) of the turnover mechanism (7) is centered with the tail of the vehicle box; Connection of the working platform (501) and the vehicle box: the driving structure (73) on the turnover mechanism (7) drives the turnover plate assembly (71) to overturn downward and lap the inner bottom surface of the vehicle box, and then the loading and unloading of goods between the vehicle box and the working platform (501) can be carried out.

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