A telescopic flatbed truck unloading and loading device

Abstract

The present application relates to the field of flat car unloading, specifically refers to a telescopic flat car unloading and loading device, including support frame and movable sleeve joint on the top of the support frame outside surface on the telescopic moving platform, the top surface of the support frame is fixedly installed with pneumatic valve cylinder, and the outside surface of the support limiting block is fixedly connected to the bottom surface of the telescopic moving platform, the top of the support frame is fixedly connected with the limiting support block on both sides of the edge position, the outside surface of the limiting support block is movably sleeved on the outside surface of the telescopic moving platform. When the telescopic moving platform moves to the carriage, the extrusion soft strip on the outside surface of the push slide is adhered to the surface of the carriage, when the moving platform and the carriage cannot form a parallel state, the push slide will swing and extrude under the push of the telescopic moving platform, and the push slide will slide on the surface of the telescopic moving platform.

Description

Technical Field

[0001] This invention relates to the field of flatbed truck unloading technology, and in particular to an unloading and loading device for a telescopic flatbed truck. Background Technology

[0002] Telescopic flatbed trucks are a common type of vehicle in road transportation. Electricity, as an important energy source that is environmentally friendly, clean, and has a high conversion rate, has led to the widespread use of electric flatbed trucks. Electric flatbed trucks are transportation tools that use batteries as power and motors as drives to haul goods or people. With their advantages of strong applicability, maneuverability, simple maintenance, convenient repair, and low price, they are widely used in short-distance transportation fields such as households, urban and rural areas, individual rentals, factories, mines, sanitation, and community cleaning. They can flexibly navigate between narrow roads.

[0003] A patent with publication number CN216996769U discloses an electric flatbed truck unloading device, including a guide rail. The device is characterized by: an electric platform slidably connected above the guide rail; an unloading mechanism welded to one end of the guide rail; an installation groove for mounting an unloading fork plate inside the unloading mechanism; a central circular hole at the center of the installation groove; and arc-shaped holes for moving the unloading fork plate inside the installation groove on both sides of the central circular hole. One end of the unloading fork plate is provided with a connecting column connected to the unloading mechanism, and one end of the connecting column is connected to a base plate. The design of the connecting column, unloading fork plate, and lifting air cushion in this invention not only allows materials to slide down automatically, reducing worker labor intensity and improving work efficiency, but also facilitates the binding of materials with wire ropes, making it easier for the lifting mechanism to hoist and unload materials. The operation is simple, convenient, and saves time and effort.

[0004] In existing flatbed truck unloading operations, there is often a large gap (10-30 cm) between the truck bed and the fixed platform after the truck stops. Personnel need to cross this gap to perform loading and unloading operations, which poses a risk of falling. Traditional solutions are mostly fixed ladders or simple platforms, which lack safety protection measures, resulting in prominent safety hazards in the operation. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that there is often a large gap (10-30 cm) between the carriage and the fixed platform in the prior art, which poses a risk of falling and lacks safety protection measures, resulting in prominent safety hazards in operation.

[0006] To solve the above-mentioned technical problems, the present invention provides a material unloading and loading device for a telescopic flatbed truck, including a support frame and a telescopic movable platform movably sleeved on the outer surface of the top of the support frame. A pneumatic cylinder is fixedly installed on the top surface of the support frame, and a support limiting block is fixedly connected to the output end of the pneumatic cylinder. The outer surface of the support limiting block is fixedly connected to the bottom surface of the telescopic movable platform. Limiting support blocks are fixedly connected to the top two side edges of the support frame. The outer surface of the limiting support block is movably sleeved on the outer surface of the telescopic movable platform. A pushing slide is movably sleeved on one side surface of the telescopic movable platform, and a squeezing soft strip is provided on the outer surface of the pushing slide.

[0007] In one embodiment of the present invention, a fence is fixedly installed on the top surface of the retractable mobile platform, and an anti-sway support column is fixedly connected to the top surface of the fence.

[0008] In one embodiment of the present invention, a swing rod is oscillatingly connected to the top of the anti-sway support column, and a steel wire rope is fixedly connected to one end of the swing rod.

[0009] In one embodiment of the present invention, a binding protective strap is fixedly connected to one end of the wire rope, and a downward guide platform is oscillatingly connected to the outer surface of the telescopic mobile platform at one side edge position.

[0010] In one embodiment of the present invention, a limiting pad is fixedly connected to the bottom surface of the retractable mobile platform, an elastic wire is fixedly connected to the outer surface of the limiting pad, and the other end of the elastic wire is fixedly connected to the bottom surface of the push slider.

[0011] In one embodiment of the present invention, ladders are provided at both sides of the support frame, and rollers are provided on the inner side wall of the support frame.

[0012] In one embodiment of the invention, the outer surface of the roller is movably attached to the bottom surface of the retractable mobile platform, and a hydraulic retraction rod is fixedly installed on the inner wall of the support frame at the middle position.

[0013] In one embodiment of the present invention, a limiting roller is movably sleeved on the output end of the hydraulic retraction rod, and the outer surface of the limiting roller movably overlaps the bottom surface of the downward guide platform.

[0014] In one embodiment of the present invention, three sets of swing blocks are oscillatingly connected to the back of the support frame, and a hydraulic telescopic rod is provided on one end of each swing block.

[0015] In one embodiment of the present invention, a swing limit block is provided on the other end of the hydraulic telescopic rod, the outer surface of the swing limit block is fixedly connected to the bottom surface of the telescopic mobile platform, and a control box is provided on the outer surface of the support frame.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] The present invention discloses a retractable flatbed truck unloading and loading device. When the truck moves to one side edge of the support frame, a pneumatic valve cylinder pushes the support limiting block. The support limiting block drives the retractable mobile platform to move towards the truck bed under the limitation of the limiting support block. The retractable mobile platform fits against the outer surface of the truck bed, filling the gap between the truck bed and the fixed platform, thus reducing the gap between the truck bed and the fixed platform.

[0018] The present invention discloses a retractable flatbed truck unloading and loading device. When the retractable mobile platform moves towards the truck bed, the compression soft strip on the outer surface of the pusher slide bar adheres to the surface of the truck bed. When the mobile platform and the truck bed cannot be parallel, the pusher slide bar will swing and compress under the push of the retractable mobile platform. When the pusher slide bar slides on the surface of the retractable mobile platform, it can tilt at an angle. When the mobile platform and the truck bed cannot be parallel, the tilted pusher slide bar can cover the tilt angle between the mobile platform and the truck bed.

[0019] The present invention discloses a retractable flatbed truck unloading and loading device. When the retractable mobile platform is pushed by the pneumatic valve cylinder, the retractable mobile platform will drive the hydraulic telescopic rod on one end of the swing limit block to extend and lengthen. When the push of the retractable mobile platform stops, the hydraulic telescopic rod stops injecting oil, so that the hydraulic telescopic rod is in a fully extended and fixed position. This makes the support frame, the retractable mobile platform and the hydraulic telescopic rod in a triangular support state, thereby increasing the support of the hydraulic telescopic rod when the employee stands on the top surface of the retractable mobile platform and reducing the downward swaying of the retractable mobile platform.

[0020] The present invention discloses a telescopic flatbed truck unloading and loading device. After the telescopic mobile platform is adjusted, it is retracted in conjunction with the hydraulic retraction rod. At this time, the downward guide platform will swing downward under its own weight. When the downward guide platform is tilted, the pull-out plate inside the downward guide platform extends out at the tilt angle. The downward guide platform can be positioned by the limiting roller on the output end of the hydraulic retraction rod, so that the downward guide platform is in a fully tilted state. Attached Figure Description

[0021] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a perspective view of the support frame in this invention.

[0024] Figure 3 This is a perspective view of the back of the support frame in this invention;

[0025] Figure 4 This is a perspective view of the lower swing of the downward guide platform in this invention;

[0026] Figure 5 This is a sectional perspective view of the scalable mobile platform in this invention;

[0027] Figure 6 This is a perspective view of the scalable mobile platform in this invention;

[0028] Figure 7 This is a perspective view of the support frame in this invention.

[0029] Explanation of reference numerals in the accompanying drawings: 11. Support frame; 111. Ladder; 112. Pneumatic cylinder; 113. Support limit block; 114. Roller; 115. Swing block; 116. Hydraulic telescopic rod; 117. Swing limit block; 118. Hydraulic retractable rod; 119. Limit roller; 1110. Limit support block; 12. Telescopic mobile platform; a1. Limit pad; a2. Elastic wire; a3. Push slider; a4. Extrusion strip; 121. Fence; 122. Anti-sway support column; 123. Swing rod; 124. Steel wire rope; 125. Binding protective belt; 13. Lowering guide platform; 14. Control box. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0031] Please see Figure 1 - Figure 7This invention provides a loading and unloading device for a telescopic flatbed truck, including a support frame 11 and a telescopic mobile platform 12 movably sleeved on the outer surface of the top of the support frame 11. A pneumatic cylinder 112 is fixedly installed on the top surface of the support frame 11, and a support limiting block 113 is fixedly connected to the output end of the pneumatic cylinder 112. The outer surface of the support limiting block 113 is fixedly connected to the bottom surface of the telescopic mobile platform 12. Limiting support blocks 1110 are fixedly connected to the top two edges of the support frame 11. The outer surface of the limiting support block 1110 is movably sleeved on the outer surface of the telescopic mobile platform 12. A pushing slide a3 is movably sleeved on one side surface of the telescopic mobile platform 12. A squeezing soft strip a4 is provided on the outer surface of the pushing slide a3. A limiting pad a1 is fixedly connected to the bottom surface of the telescopic mobile platform 12. An elastic wire a2 is fixedly connected to the outer surface of the limiting pad a1. The other end of the elastic wire a2 is fixedly connected to the bottom surface of the pushing slide a3.

[0032] When the truck moves to one side edge of the support frame 11, the pneumatic valve cylinder 112 pushes the support limiting block 113, and the support limiting block 113 drives the telescopic mobile platform 12 to move towards the truck bed under the limitation of the limiting support block 1110, so that the telescopic mobile platform 12 fits against the outer surface of the truck bed, filling the gap between the truck bed and the fixed platform, reducing the gap between the truck bed and the fixed platform.

[0033] When the retractable mobile platform 12 moves toward the carriage, the compression strip a4 on the outer surface of the pusher a3 adheres to the surface of the carriage. When the mobile platform and the carriage cannot form a parallel state, the pusher a3 will swing and compress under the push of the retractable mobile platform 12, and when the pusher a3 slides on the surface of the retractable mobile platform 12, it can tilt at an angle, so that when the mobile platform and the carriage cannot form a parallel fit, the tilted pusher a3 can cover the tilt angle between the mobile platform and the carriage.

[0034] Furthermore, such as Figures 1-5 and Figure 7 As shown, ladders 111 are provided on both sides of the support frame 11, rollers 114 are provided on the inner wall of the support frame 11, the outer surface of the rollers 114 is movably connected to the bottom surface of the telescopic mobile platform 12, and a hydraulic retractable rod 118 is fixedly installed on the inner wall of the support frame 11 at the middle position.

[0035] When the telescopic mobile platform 12 is pushed by the pneumatic cylinder 112, the telescopic mobile platform 12 will drive the hydraulic telescopic rod 116 on one end of the swing limit block 117 to extend and lengthen. When the push of the telescopic mobile platform 12 stops, the hydraulic telescopic rod 116 stops injecting oil, so that the hydraulic telescopic rod 116 is in a fully extended and fixed position. This makes the support frame 11, the telescopic mobile platform 12 and the hydraulic telescopic rod 116 in a triangular support state. This increases the support of the hydraulic telescopic rod 116 when employees stand on the top surface of the telescopic mobile platform 12, which can reduce the downward swaying of the telescopic mobile platform 12.

[0036] Furthermore, such as Figures 1-5 and Figure 7 As shown, a limiting roller 119 is movably sleeved on the output end of the hydraulic retractable rod 118. The outer surface of the limiting roller 119 is movably overlapped on the bottom surface of the downward guide platform 13. Three sets of swing blocks 115 are swayingly connected to the back of the support frame 11. A hydraulic telescopic rod 116 is provided on one end of the swing block 115, and a swing limiting block 117 is provided on the other end of the hydraulic telescopic rod 116. The outer surface of the swing limiting block 117 is fixedly connected to the bottom surface of the telescopic mobile platform 12. A control box 14 is provided on the outer surface of the support frame 11.

[0037] After the telescopic mobile platform 12 is adjusted, it retracts in conjunction with the hydraulic retraction rod 118. At this time, the downward guide platform 13 will swing downward under its own weight. When the downward guide platform 13 is tilted, the pull-out plate inside the downward guide platform 13 extends out at the tilt angle. The downward guide platform 13 can be positioned by the limiting roller 119 on the output end of the hydraulic retraction rod 118, so that the downward guide platform 13 is in a fully tilted state.

[0038] Furthermore, such as Figures 1-6 As shown, a fence 121 is fixedly installed on the top surface of the telescopic mobile platform 12. An anti-sway support column 122 is fixedly connected to the top surface of the fence 121. A swing rod 123 is swayed to the top of the anti-sway support column 122. A steel wire rope 124 is fixedly connected to one end of the swing rod 123. A binding protective strap 125 is fixedly connected to one end of the steel wire rope 124. A downward guide platform 13 is swayed to the outer surface of the telescopic mobile platform 12 and located at one edge.

[0039] When an employee stands on the top surface of the retractable mobile platform 12, a protective strap 125 is used to secure the employee's surface and to move goods inside the vehicle. When the employee moves, the steel wire rope 124 and the swing rod 123 move together with the employee. If an employee accidentally steps on the top surface of the descending guide platform 13 and falls, the steel wire rope 124 and the swing rod 123 can be used to restrict the employee's position and prevent the fall.

[0040] Working principle: When the truck moves to one side edge of the support frame 11, the pneumatic valve cylinder 112 pushes the support limiting block 113, and the support limiting block 113 drives the telescopic mobile platform 12 to move towards the truck bed under the limitation of the limiting support block 1110, so that the telescopic mobile platform 12 fits against the outer surface of the truck bed, filling the gap between the truck bed and the fixed platform, reducing the gap between the truck bed and the fixed platform.

[0041] When the retractable mobile platform 12 moves toward the carriage, the compression soft strip a4 on the outer surface of the pusher a3 adheres to the surface of the carriage. When the mobile platform and the carriage cannot form a parallel state, the pusher a3 will swing and compress under the push of the retractable mobile platform 12, and when the pusher a3 slides on the surface of the retractable mobile platform 12, it can tilt at an angle, so that when the mobile platform and the carriage cannot form a parallel fit, the tilted pusher a3 can cover the tilt angle between the mobile platform and the carriage.

[0042] When the telescopic mobile platform 12 is pushed by the pneumatic cylinder 112, the telescopic mobile platform 12 will drive the hydraulic telescopic rod 116 on one end of the swing limit block 117 to extend and lengthen. When the push of the telescopic mobile platform 12 stops, the hydraulic telescopic rod 116 stops injecting oil, so that the hydraulic telescopic rod 116 is in a fully extended and fixed position. This makes the support frame 11, the telescopic mobile platform 12 and the hydraulic telescopic rod 116 in a triangular support state. This increases the support of the hydraulic telescopic rod 116 when employees stand on the top surface of the telescopic mobile platform 12, which can reduce the downward swaying of the telescopic mobile platform 12.

[0043] After the telescopic mobile platform 12 is adjusted, it retracts in conjunction with the hydraulic retraction rod 118. At this time, the downward guide platform 13 will swing downward under its own weight. When the downward guide platform 13 is tilted, the pull plate inside the downward guide platform 13 extends out under the tilt angle. The downward guide platform 13 can be positioned by the limiting roller 119 on the output end of the hydraulic retraction rod 118, so that the downward guide platform 13 is in a fully tilted state.

[0044] When an employee stands on the top surface of the retractable mobile platform 12, a protective strap 125 is used to secure the employee's surface and to move goods inside the vehicle. When the employee moves, the steel wire rope 124 and the swing rod 123 move together with the employee. If an employee accidentally steps on the top surface of the descending guide platform 13 and falls, the steel wire rope 124 and the swing rod 123 can be used to restrict the employee's position and prevent the fall.

[0045] Obviously, the above embodiments are merely illustrative examples for clarity and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A loading and unloading device for a telescopic flatbed truck, comprising a support frame (11) and a telescopic movable platform (12) movably sleeved on the outer surface of the top of the support frame (11), characterized in that: A pneumatic valve cylinder (112) is fixedly installed on the top surface of the support frame (11). A support limiting block (113) is fixedly connected to the output end of the pneumatic valve cylinder (112). The outer surface of the support limiting block (113) is fixedly connected to the bottom surface of the telescopic mobile platform (12). Limiting support blocks (1110) are fixedly connected to the top two sides of the support frame (11). The outer surface of the limiting support block (1110) is movably sleeved on the outer surface of the telescopic mobile platform (12). A pusher slide (a3) ​​is movably sleeved on one side surface of the telescopic mobile platform (12). A compression soft strip (a4) is provided on the outer surface of the pusher slide (a3). A fence (121) is fixedly installed on the top surface of the retractable mobile platform (12), and an anti-sway support column (122) is fixedly connected to the top surface of the fence (121). The top of the anti-sway support column (122) is swayed and connected to a swing rod (123), and a steel wire rope (124) is fixedly connected to one end of the swing rod (123). A binding protective strap (125) is fixedly connected to one end of the wire rope (124), and a downward guide platform (13) is swung and connected to the outer surface of the telescopic mobile platform (12) at one side edge. A limiting pad (a1) is fixedly connected to the bottom surface of the retractable mobile platform (12), and an elastic wire (a2) is fixedly connected to the outer surface of the limiting pad (a1). The other end of the elastic wire (a2) is fixedly connected to the bottom surface of the push slider (a3). Ladders (111) are provided on both sides of the support frame (11), and rollers (114) are provided on the inner side wall of the support frame (11).

2. The unloading and loading device for a telescopic flatbed truck according to claim 1, characterized in that: The outer surface of the roller (114) is movably attached to the bottom surface of the telescopic mobile platform (12), and a hydraulic retractable rod (118) is fixedly installed on the inner wall of the support frame (11) at the middle position.

3. The unloading and loading device for a telescopic flatbed truck according to claim 2, characterized in that: A limiting roller (119) is movably sleeved on the output end of the hydraulic retraction rod (118), and the outer surface of the limiting roller (119) is movably overlapped on the bottom surface of the downward guide platform (13).

4. The unloading and loading device for a telescopic flatbed truck according to claim 1, characterized in that: Three sets of swing blocks (115) are swayingly connected to the back of the support frame (11), and a hydraulic telescopic rod (116) is provided on one end of the swing block (115).

5. The unloading and loading device for a telescopic flatbed truck according to claim 4, characterized in that: A swing limit block (117) is provided on the other end of the hydraulic telescopic rod (116). The outer surface of the swing limit block (117) is fixedly connected to the bottom surface of the telescopic mobile platform (12). A control box (14) is provided on the outer surface of the support frame (11).

Images