Turnover lifting appliance

Abstract

The invention discloses a turnover lifting appliance, which belongs to the field of engineering machinery, and comprises an outer connecting frame, a turnover frame, a lifting frame and a plurality of lifting assemblies, the turnover frame is rotatably connected to the outer connecting frame, the lifting frame is slidably connected to the turnover frame, the lifting frame is arranged in a square shape, and the plurality of lifting assemblies are respectively arranged on the turnover frame corresponding to the corners of the lifting frame. The lifting assembly comprises a lifting driving assembly, a movable pulley and a flexible connecting piece, the lifting driving assembly is installed on the overturning frame, the movable pulley is connected with the output end of the lifting driving assembly, the two ends of the flexible connecting piece are connected with the overturning frame and the hanging bracket respectively, the middle of the flexible connecting piece is wound around the movable pulley, and the lifting driving assembly is used for driving the movable pulley to move. Therefore, the flexible connecting pieces pull the hanging bracket to ascend and descend, and the multiple flexible connecting pieces are connected to the corner positions of the hanging bracket. According to the embodiment of the invention, the flexible connecting piece can absorb impact vibration in the lifting process of the hanging bracket, reduce shaking of the hanging bracket in the lifting process, improve stability, disperse loads and avoid local overload.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a tilting lifting device. Background Technology

[0002] Open wagons are a type of railway freight car characterized by their open top and side panels on all four sides. They are primarily used for transporting bulk goods such as coal or ore. Currently, to reduce pollution, coal or ore is first placed in containers, and then the containers are loaded into open wagons for transport. Patent application number 202110954969.2 discloses a container front-tipping crane, comprising: a turntable; an outer frame connected to the bottom of the turntable; a slewing support frame rotatably connected to the inner side of the outer frame via a slewing bearing; and an inner frame, which is vertically and vertically connected to the slewing support frame via lifting cylinders. In this container front-tipping crane, a lifting cylinder is connected to each side of the inner frame. The load on the lifting cylinders directly corresponds to the weight of the inner frame and the container lifted by it. The impact and vibration during the lifting process of the inner frame are directly transmitted to the lifting cylinders, which can easily shorten their service life. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a tilting lifting device.

[0004] A tilting lifting device according to an embodiment of the present invention includes: External connector; The tilting frame is rotatably connected to the outer connecting frame; A hanger is slidably connected to the tilting frame in a vertical direction, and the hanger is square in shape. Multiple lifting components are respectively installed on the tilting frame at the corner positions of the hanging frame. Each lifting component includes a lifting drive component, a movable pulley, and a flexible connector. The lifting drive component is installed on the tilting frame. The movable pulley is connected to the output end of the lifting drive component. The two ends of the flexible connector are respectively connected to the tilting frame and the hanging frame. The middle part of the flexible connector is wrapped around the movable pulley. The lifting drive component is used to drive the movable pulley to move, thereby causing the flexible connector to pull the hanging frame up and down. Multiple flexible connectors are connected to the corner positions of the hanging frame.

[0005] A tilting lifting device according to an embodiment of the present invention has at least the following beneficial effects: The lifting frame picks up the container, and the tilting frame drives the lifting frame to rotate, causing the container to tilt and be unloaded. The lifting drive assembly moves the movable pulley, which in turn pushes the flexible connector. The flexible connector pulls the lifting frame up and down. The flexible connector can absorb the impact vibration during the lifting process, reducing the swaying of the lifting frame and improving stability. Multiple flexible connectors are connected at the corners of the lifting frame to distribute the load, avoid local overload, and thus improve the service life of each component.

[0006] According to some embodiments of the present invention, a container guiding mechanism is further included. The tilting frame includes a first inner frame and a second inner frame, which are respectively installed at both ends of the length direction of the lifting frame. The container guiding mechanism includes two first guiding components, which are respectively installed inside the first inner frame and the second inner frame. Each first guiding component includes a guide drive component and a first guide seat connected to each other. The guide drive component is installed on the tilting frame and is used to drive the first guide seat to rise and fall so that the first guide seat extends from the lower end of the tilting frame or retracts into the tilting frame. The first guide seat is provided with a first guide ramp, and the distance between the two first guide ramps gradually increases in the downward direction.

[0007] According to some embodiments of the present invention, the first guide assembly further includes a guide cylinder and a guide member, the guide cylinder being mounted on a tilting frame, the guide member being slidably inserted into the guide cylinder in a vertical direction, and the first guide seat being connected to the lower end of the guide member.

[0008] According to some embodiments of the present invention, the container guiding mechanism further includes a second guiding assembly, the second guiding assembly including a second guide seat and a third guide seat, the second guide seat and the third guide seat being respectively installed on both ends of the hanger along the width direction of the hanger, a second guide ramp being provided on the second guide seat near the third guide seat, and a third guide ramp being provided on the third guide seat near the second guide seat, the distance between the second guide ramp and the third guide ramp gradually increasing in the downward direction.

[0009] According to some embodiments of the present invention, the tilting device further includes a plurality of clamping assemblies, which are respectively installed on the tilting frame at the corner positions corresponding to the lifting frame. Each clamping assembly includes a pressure rod and a clamping drive assembly. The middle part of the pressure rod is hinged to the tilting frame, and the clamping drive assembly is installed on the tilting frame. The clamping drive assembly is hinged to one end of the pressure rod. The clamping drive assembly is used to drive one end of the pressure rod to rotate around the hinge point between the pressure rod and the tilting frame so that the other end of the pressure rod clamps the lifting frame.

[0010] According to some embodiments of the present invention, the tilting device further includes multiple lifting guide components, each of which includes slide rails and rollers. The multiple slide rails are installed on the tilting frame near the corner of the lifting frame, and the multiple rollers are rotatably connected to the corner of the lifting frame. The multiple rollers abut against the multiple slide rails one by one, and the rollers are rolled on the slide rails in a vertical direction.

[0011] According to some embodiments of the present invention, a second baffle is provided at the lower end of the slide rail for limiting the movement range of the roller, and a buffer pad is provided on the slide rail near the second baffle. The buffer pad has a buffer slope, and the upper end of the buffer slope is provided near the slide rail. The buffer pad is used to fill the gap between the roller and the slide rail to reduce the swaying during the lifting process of the hanger.

[0012] According to some embodiments of the present invention, a plurality of vertical beams are provided on the tilting frame corresponding to the corner positions of the hanging frame, and a cavity extending in the vertical direction is formed inside the vertical beam. The lifting drive assembly and the movable pulley are disposed in the cavity. One end of the flexible connector is connected to the inner wall of the cavity, and the other end of the flexible connector extends out from the cavity.

[0013] According to some embodiments of the present invention, the lifting assembly further includes a slider, which is slidably connected to the cavity and abuts against the inner wall of the cavity. A movable pulley is rotatably connected to the slider and is connected to the output end of the lifting drive assembly through the slider.

[0014] According to some embodiments of the present invention, the lifting assembly further includes a fixed pulley, which is rotatably connected to the vertical beam. The middle part of the flexible connector is wrapped around the fixed pulley. The fixed pulley is disposed above the movable pulley. The flexible connector is sequentially connected to the output end of the lifting drive assembly, the movable pulley, the fixed pulley, and the hanger.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the structure of the tilting lifting device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the lifting frame, vertical beam and lifting assembly of the tilting lifting device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the tilting lifting device after removing the outer connecting frame according to an embodiment of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the lifting frame and the second guide assembly of the flipping lifting device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first inner frame and the first guide assembly of the tilting lifting device according to an embodiment of the present invention.

[0017] Icon labels: 100. External connecting frame; 200. Tilting frame; 210. Vertical beam; 211. Cavity; 220. First inner frame; 230. Second inner frame; 300. Hanger; 310. Locking clip; 400. Lifting assembly; 410. Lifting drive assembly; 420. Movable pulley; 430. Flexible connector; 440. Slider; 450. Fixed pulley; 500. Container guiding mechanism; 510. First guiding assembly; 511. Guiding drive assembly; 512. First guide seat; 5121. First guide ramp; 5122. Connecting part; 5123. Guiding part; 513. Guide cylinder; 514. Guide component; 520. Second guiding assembly; 521. Second guide seat; 5211. Second guide ramp; 522. Third guide seat; 5221. Third guide ramp; 600. Clamping assembly; 610. Clamping rod; 620. Clamping drive assembly; 700. Lifting guide assembly; 710. Slide rail; 711. Second baffle; 712. Buffer pad; 7121. Buffer ramp; 720. Roller; 800. Cargo box assembly; 810. Cargo box beam; 811. Support pad; 812. Vibrator; 820. Tie rod; 830. Cargo box drive cylinder. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Please see Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, a tilting spreader includes an outer connecting frame 100, a tilting frame 200, a lifting frame 300, and multiple lifting components 400. The tilting frame 200 is rotatably connected to the outer connecting frame 100, and a tilting drive component is connected between the outer connecting frame 100 and the tilting frame 200, which drives the tilting frame 200 to rotate. The lifting frame 300 is slidably connected to the tilting frame 200 in a vertical direction. The lifting frame 300 is square in shape and is provided with a latch 310, which can be engaged with a container. Multiple lifting components 400 are respectively installed on the tilting frame 200 at positions corresponding to the corners of the lifting frame 300. Each lifting component 400 includes a lifting drive component 410, a movable pulley 420, and a flexible connector 430. The lifting drive component 410 is installed on the tilting frame 200 and includes a lifting cylinder. The movable pulley 420 is connected to the output end of the lifting drive assembly 410. The two ends of the flexible connector 430 are respectively connected to the tilting frame 200 and the hanger 300. The middle part of the flexible connector 430 is wrapped around the movable pulley 420. The lifting drive assembly 410 is used to drive the movable pulley 420 to move, thereby causing the flexible connector 430 to pull the hanger 300 up and down. Multiple flexible connectors 430 are connected to the corners of the hanger 300.

[0022] The lifting frame 300 lifts the container, and the tilting frame 200 drives the lifting frame 300 to rotate, causing the container to tilt and unload. The lifting drive assembly 410 drives the movable pulley 420 to move, and the movable pulley 420 pushes the flexible connector 430. The flexible connector 430 pulls the lifting frame 300 up and down. The flexible connector 430 can absorb the impact vibration during the lifting process of the lifting frame 300, reduce the swaying of the lifting frame 300 during lifting, and improve stability. Multiple flexible connectors 430 are connected at the corners of the lifting frame 300, which can distribute the load, avoid local overload, and thus improve the service life of each component.

[0023] In some embodiments, see Figure 3 , Figure 5 and Figure 6 The tilting spreader also includes a container guiding mechanism 500. The tilting frame 200 includes a first inner frame 220 and a second inner frame 230, which are respectively installed at both ends of the spreader 300 along its length. The container guiding mechanism 500 includes two first guiding components 510, which are respectively installed inside the first inner frame 220 and the second inner frame 230. Each first guiding component 510 includes a guide drive component 511 and a first guide seat 512 connected to each other. The guide drive component 511 is installed on the tilting frame and is a guide drive cylinder. The guide drive component 511 drives the first guide seat 512 to rise and fall, so that the first guide seat 512 extends from the lower end of the tilting frame 200 or retracts into the tilting frame 200. The first guide seat 512 is provided with a first guide ramp 5121, and the distance between the two first guide ramps 5121 gradually increases in the downward direction.

[0024] In normal operation, the guide drive assembly 511 drives the first guide seat 512 to retract into the tilting frame 200, improving space utilization and creating a compact structure. When the hanger 300 docks with the container, the two guide drive assemblies 511 drive the two first guide seats 512 to extend from the lower end of the tilting frame 200. The upper edge of the container is guided by the two first guide ramps 5121 to the space between the first inner frame 220 and the second inner frame 230, avoiding interference between the container and the tilting frame 200 and ensuring that the container can dock smoothly with the hanger 300.

[0025] In some embodiments, see Figure 3 , Figure 5 and Figure 6The first guide assembly 510 also includes a guide cylinder 513 and a guide member 514. The guide cylinder 513 is mounted on the tilting frame 200, and the guide member 514 slides vertically through the guide cylinder 513. A first guide seat 512 is connected to the lower end of the guide member 514. The guide member 514 slides through the guide cylinder 513, and the first guide seat 512 is connected to the guide member 514. The guide member 514 guides the first guide seat 512, ensuring that the guide drive assembly 511 drives the first guide seat 512 to move stably vertically.

[0026] The first guide seat 512 includes a connecting part 5122 and two guide parts 5123. The two guide parts 5123 are respectively connected to the two ends of the connecting part 5122. The two guide parts 5123 are spaced apart along the width direction of the lifting frame 300, and each guide part 5123 is provided with a first guide ramp 5121. The two guide parts 5123 are spaced apart along the width direction of the lifting frame 300, and the two guide parts 5123 guide the container simultaneously, increasing the force-bearing area of ​​the container, which can make the container bear force evenly and prevent the container from swaying left and right due to concentrated force.

[0027] In some embodiments, see Figure 3 , Figure 5 and Figure 6 The container guiding mechanism 500 also includes a second guiding assembly 520, which includes a second guide seat 521 and a third guide seat 522. The second guide seat 521 and the third guide seat 522 are respectively installed on the gantry 300 at both ends along the width direction of the gantry 300. A second guide ramp 5211 is provided on the side of the second guide seat 521 near the third guide seat 522, and a third guide ramp 5221 is provided on the side of the third guide seat 522 near the second guide seat 521. The distance between the second guide ramp 5211 and the third guide ramp 5221 gradually increases in the downward direction. When the gantry 300 docks with the container, the upper edge of the container is guided by the second guide ramp 5211 and the third guide ramp 5221 to align with the gantry 300, ensuring that the container can dock smoothly with the gantry 300.

[0028] In some embodiments, see Figure 1 , Figure 3 and Figure 4The tilting device also includes multiple clamping assemblies 600, which are respectively installed on the tilting frame 200 at the corner positions corresponding to the lifting frame 300. Each clamping assembly 600 includes a pressure rod 610 and a clamping drive assembly 620. The middle part of the pressure rod 610 is hinged to the tilting frame 200, and the clamping drive assembly 620 is installed on the tilting frame 200. The clamping drive assembly 620 is hinged to one end of the pressure rod 610. The clamping drive assembly 620 is used to drive one end of the pressure rod 610 to rotate around the hinge point between the pressure rod 610 and the tilting frame 200, thereby causing the other end of the pressure rod 610 to clamp the lifting frame 300.

[0029] The clamping drive assembly 620 can be a clamping drive cylinder. When the lifting frame 300 lifts the container, the clamping drive assembly 620 drives one end of the pressure rod 610 to rotate, causing the other end of the pressure rod 610 to clamp the lifting frame 300. Multiple clamping assemblies 600 are respectively installed on the tilting frame 200 at the corner positions of the lifting frame 300. Multiple clamping drive assemblies 620 work simultaneously, causing multiple pressure rods 610 to clamp the lifting frame 300 at the same time, ensuring that the lifting frame 300 is subjected to uniform pressure, ensuring that the lifting frame 300 is smoothly connected to the container, reducing manual intervention, improving unloading efficiency, simplifying operation, and saving costs.

[0030] In some embodiments, see Figure 1 , Figure 3 and Figure 4 The tilting device also includes multiple lifting guide assemblies 700, each comprising a slide rail 710 and rollers 720. The slide rails 710 are mounted on the tilting frame 200 near the corners of the hanger 300. The rollers 720 are rotatably connected to the corners of the hanger 300, each roller corresponding to abutting against a slide rail 710. The rollers 720 roll vertically on the slide rails 710. The hanger 300 slides vertically on the tilting frame 200, and the rollers 720 on the hanger 300 roll vertically on the slide rails 710, making the lifting of the hanger 300 on the tilting frame 200 more stable.

[0031] In some embodiments, see Figure 1 , Figure 3 and Figure 4 A second baffle 711 is provided at the lower end of the slide rail 710, which is used to limit the movement range of the roller 720. A buffer pad 712 is provided on the slide rail 710 near the second baffle 711. The buffer pad 712 has a buffer slope 7121, and the upper end of the buffer slope 7121 is located near the slide rail 710. The buffer pad 712 is used to fill the gap between the roller 720 and the slide rail 710, thereby reducing the swaying of the hanger 300 during the lifting process.

[0032] During the process of the hanger 300 moving from the top to the bottom: the lifting drive cylinder retracts, and under the action of gravity, the hanger 300 pulls the flexible connector 430 downward. When it reaches the bottom, the roller 720 abuts against the second baffle 711. The second baffle 711 can limit the range of movement of the hanger 300 and ensure that the hanger 300 operates smoothly.

[0033] There is a gap between the roller 720 and the slide rail 710. When the roller 720 abuts against the second baffle 711, the buffer slope 7121 guides the roller 720 to move from the slide rail 710 to the buffer pad 712. The roller 720 abuts against the buffer pad 712, and the buffer pad 712 fills the gap between the roller 720 and the slide rail 710, so that the hanger 300 is stable.

[0034] Four slide rails 710 are provided, corresponding to four rollers 720. The four slide rails 710 are located at the four corners of the hanger 300. At one end of the hanger 300 along its length, two slide rails 710 are located between the rollers 720, and two buffer pads 712 are located on the side of the slide rails 710 facing away from the other slide rail 710. When the roller 720 abuts against the second baffle 711, the buffer slope 7121 guides the roller 720 to move from the slide rail 710 onto the buffer pad 712. Both buffer pads 712 fill the gap between the roller 720 and the slide rail 710, keeping the hanger 300 in a taut state. The buffer pads 712 can reduce the impact of the roller 720 on the second baffle 711, making the structure more stable.

[0035] In some embodiments, see Figure 1 , Figure 2 and Figure 3 Multiple vertical beams 210 are provided on the tilting frame 200 at the corner positions corresponding to the hanger 300. Each vertical beam 210 forms a cavity 211 extending vertically. The lifting drive assembly 410 and the movable pulley 420 are disposed within the cavity 211. One end of the flexible connector 430 is connected to the inner wall of the cavity 211, and the other end of the flexible connector 430 extends out from within the cavity 211. The vertical beams 210, with their cavity 211, provide protection against dust and water, and also improve space utilization, resulting in a compact and aesthetically pleasing lifting assembly 400.

[0036] In some embodiments, see Figure 1 , Figure 2 and Figure 3The lifting assembly 400 also includes a slider 440, which is slidably connected within the cavity 211 and abuts against the inner wall of the cavity 211. A movable pulley 420 is rotatably connected to the slider 440 and is connected to the output end of the lifting drive assembly 410 via the slider 440. The slider 440 is slidably connected within the cavity 211, which extends vertically. The slider 440 moves vertically, and the lifting drive assembly 410 also moves vertically. The slider 440 restricts the movement trajectory of the movable pulley 420, preventing interference between the movable pulley 420 and the inner wall of the cavity 211, ensuring that the lifting drive assembly 410 can smoothly drive the movable pulley 420 to move within the cavity 211.

[0037] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The lifting assembly 400 also includes a fixed pulley 450, which is rotatably connected to the vertical beam 210. A flexible connector 430 is wound around the fixed pulley 450 at its center. The fixed pulley 450 is positioned above the movable pulley 420. The flexible connector 430 sequentially connects to the output end of the lifting drive assembly 410, the movable pulley 420, the fixed pulley 450, and the hanger 300. The fixed pulley 450 and the movable pulley 420 cooperate to form a pulley block. The fixed pulley 450 is fixed to the top of the vertical beam 210. After the flexible connector 430 passes around the fixed pulley 450, it forms a vertical guide path, effectively constraining the movement trajectory of the hanger 300. The hanger 300 is less prone to lateral deviation or shaking, making the lifting of the hanger 300 more stable.

[0038] A clearance hole is provided at the upper end of the vertical beam 210. A portion of the fixed pulley 450 is located inside the cavity 211, while the other portion extends out of the cavity 211 along the clearance hole. The flexible connector 430 also extends out of the cavity 211 along the clearance hole. The fixed pulley 450 guides the flexible connector 430, preventing friction between the flexible connector 430 and the support frame, thus ensuring that the flexible connector 430 can smoothly drive the lifting frame 300 to rise and fall.

[0039] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The flexible connector 430 includes a wire rope or chain. The flexibility of the wire rope or chain can absorb some of the impact energy during the lifting and lowering process of the hanger 300, making the movement of the hanger 300 smoother and more continuous.

[0040] In some embodiments, see Figure 1 , Figure 2 and Figure 3The tilting spreader also includes a container trailer assembly 800, which includes a trailer beam 810, a pull rod 820, and a trailer drive cylinder 830. The two ends of the pull rod 820 are hinged to the tilting frame 200 and the trailer beam 810, respectively. The two ends of the trailer drive cylinder 830 are also hinged to the tilting frame 200 and the trailer beam 810, respectively. The hinge point between the pull rod 820 and the tilting frame 200 is located above the hinge point between the trailer drive cylinder 830 and the tilting frame 200. The trailer drive cylinder 830 moves the trailer beam 810 away from the tilting frame 200, facilitating the lifting frame 300 to rise and fall along the tilting frame 200. When the lifting frame 300 lifts the container, the trailer drive cylinder 830 pulls the trailer beam 810 closer to the tilting frame 200, causing the trailer beam 810 to abut against the container. When the tilting frame 200 tilts the container for unloading, the trailer beam 810 provides stable support for the container.

[0041] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The trailer beam 810 is equipped with support pads 811, which are used to support the container. The support pads 811 prevent the trailer beam 810 from scratching the container. A vibrator 812 is connected to the trailer beam 810. When the tilting frame 200 tilts the container for unloading, the vibrator 812 on the trailer beam 810 provides vibration to ensure faster container unloading.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A roll-off spreader, characterized in that, The container guiding mechanism comprises two first guiding assemblies, the two first guiding assemblies are respectively installed on the inner sides of the first inner frame and the second inner frame, the first guiding assembly comprises a guiding driving assembly and a first guiding seat which are connected with each other, the guiding driving assembly is installed on the turnover frame, the guiding driving assembly is used to drive the first guiding seat to ascend and descend so that the first guiding seat is extended from the lower end of the turnover frame or is retracted into the turnover frame, a first guiding inclined surface is arranged on the first guiding seat, and the distance between the two first guiding inclined surfaces gradually increases in the downward direction. The first guiding assembly further comprises a guiding cylinder and a guiding piece, the guiding cylinder is installed on the turnover frame, the guiding piece is slidably arranged in the guiding cylinder in the vertical direction, and the first guiding seat is connected to the lower end of the guiding piece. The container guiding mechanism further comprises a second guiding assembly, the second guiding assembly comprises a second guiding seat and a third guiding seat, the second guiding seat and the third guiding seat are respectively installed on the two ends of the hanger along the width direction of the hanger, a second guiding inclined surface is arranged on the second guiding seat close to the third guiding seat, a third guiding inclined surface is arranged on the third guiding seat close to the second guiding seat, and the distance between the second guiding inclined surface and the third guiding inclined surface gradually increases in the downward direction. The container guiding mechanism further comprises a second guiding assembly, the second guiding assembly comprises a second guiding seat and a third guiding seat, the second guiding seat and the third guiding seat are respectively installed on the two ends of the hanger along the width direction of the hanger, a second guiding inclined surface is arranged on the second guiding seat close to the third guiding seat, a third guiding inclined surface is arranged on the third guiding seat close to the second guiding seat, and the distance between the second guiding inclined surface and the third guiding inclined surface gradually increases in the downward direction. The container guiding mechanism further comprises a second guiding assembly, the second guiding assembly comprises a second guiding seat and a third guiding seat, the second guiding seat and the third guiding seat are respectively installed on the two ends of the hanger along the width direction of the hanger, a second guiding inclined surface is arranged on the second guiding seat close to the third guiding seat, a third guiding inclined surface is arranged on the third guiding seat close to the second guiding seat, and the distance between the second guiding inclined surface and the third guiding inclined surface gradually increases in the downward direction.

2. A roll-off spreader according to claim 1, characterised in that ​ 3. A roll-off spreader according to claim 2, characterised in that ​ 4. The roll-off spreader of claim 2 wherein, ​ 5. The roll-off spreader of claim 1 wherein, ​ 6. The roll-off spreader of claim 1, wherein, Also comprise a plurality of lifting guide assemblies, the lifting guide assembly comprises a slide rail and a roller, a plurality of the slide rails are installed on the turnover frame near the corner position of the hanging frame, a plurality of the rollers are rotationally connected at the corner position of the hanging frame, a plurality of the rollers one by one abut a plurality of the slide rails, the roller is rolling connected on the slide rail along the vertical direction.

7. A roll-off spreader according to claim 6, characterised in that The lower end of the slide rail is provided with a second baffle for limiting the movement range of the roller, the position of the slide rail near the second baffle is provided with a buffer pad, the buffer pad has a buffer slope, the upper end of the buffer slope is close to the slide rail, the buffer pad is used to fill the gap between the roller and the slide rail to reduce the shaking during the lifting process of the hanging frame.

8. The roll-off spreader of claim 1, wherein, The turnover frame is provided with a plurality of vertical beams corresponding to the corner position of the hanging frame, the vertical beam is internally formed with a cavity extending in the vertical direction, the lifting drive assembly and the movable pulley are arranged in the cavity, one end of the flexible connecting piece is connected to the inner wall of the cavity, and the other end of the flexible connecting piece extends out of the cavity.

9. A roll-off spreader according to claim 8, characterised in that The lifting assembly further comprises a sliding block, the sliding block is slidingly connected in the cavity, the sliding block abuts the inner wall of the cavity, the movable pulley is rotationally connected to the sliding block, and the movable pulley is connected to the output end of the lifting drive assembly through the sliding block.

10. The roll-off spreader of claim 8, wherein, The lifting assembly further comprises a fixed pulley, the fixed pulley is rotationally connected to the vertical beam, the middle part of the flexible connecting piece is wound around the fixed pulley, the fixed pulley is arranged above the movable pulley, and the flexible connecting piece is sequentially connected to the output end of the lifting drive assembly, the movable pulley, the fixed pulley and the hanging frame.

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