A loading and unloading attachment used in multimodal transport containers

Abstract

The utility model discloses a loading and unloading attachment for use in an intermodal container, comprising a first frame, a tilting frame, a rotary drive mechanism, a lifting frame that can be connected to the intermodal container, and a lifting cylinder. The tilting frame can be tilted and connected to the first frame. The rotary drive mechanism is connected to the tilting frame in a transmission manner. The lifting frame can be lifted and slidably connected to the tilting frame. The lifting cylinder connects the tilting frame and the lifting frame, the lifting cylinder comprises a cylinder body and a piston rod that is slidably connected to the cylinder body and drives the lifting frame to rise and fall through the lifting cylinder, the piston rod of the lifting cylinder is tilted from top to bottom toward the container relative to the sliding direction of the cylinder body, and the lifting cylinder has a clamping portion that gradually moves inwards to closely contact the container during the process of the lifting cylinder driving the lifting frame to rise. It can realize the loading and unloading of bulk materials in containers in intermodal transport, and can improve the stability and firmness of the container during the loading and unloading process.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering, and in particular to a loading and unloading work attachment applied to a multimodal transport container. Background Art

[0002] The working attachments of the multimodal transport containers in the world today, such as CN113697654A (under review), provide a front flip attachment with a lifting function, but its cylinder is placed above the slide rail and the lifting frame, which takes up a lot of space, and its slide rail structure and the protective structure for the container flipping are too simple, so it is impossible to truly achieve the function of simple and fast unloading. Utility Model Content

[0003] The utility model provides a loading and unloading work attachment applied to a multimodal transport container, which overcomes the shortcomings existing in the background technology.

[0004] The utility model solves the technical problem by adopting one of the technical solutions: a loading and unloading tool used in a multimodal transport container, which comprises:

[0005] First frame (203);

[0006] A turning frame (205), the turning frame (205) can be turned over and connected inside the first frame body (203);

[0007] A rotary drive mechanism (201), the rotary drive mechanism (201) being drivingly connected to the turning frame (205);

[0008] A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the turning frame (205); and

[0009] A lifting cylinder (204) is provided, wherein the lifting cylinder (204) is connected to the tilting frame (205) and the lifting frame. The lifting cylinder (204) comprises a cylinder body and a piston rod slidably connected to the cylinder body, and the lifting frame is driven to rise and fall by the lifting cylinder (204). The piston rod of the lifting cylinder (204) is arranged to be inclined from top to bottom in a direction toward the container relative to the sliding direction of the cylinder body. The lifting cylinder (204) has a clamping portion (2041) that gradually moves inwards to closely contact the container during the process of the lifting frame being driven to rise by the lifting cylinder (204).

[0010] In one embodiment: the upper end of the piston rod of the lifting cylinder (204) is rotatably connected to the tilting frame (205), the upper part or the middle part of the cylinder body of the lifting cylinder (204) is rotatably connected to the lifting frame, and the cylinder body of the lifting cylinder (204) has the above-mentioned clamping part (2041).

[0011] In one embodiment, at least one pair of lifting cylinders (204) is provided, the upper ends of the piston rods of the lifting cylinders (204) are rotatably connected to the tilting frame (205), the upper or middle parts of the cylinder bodies of the lifting cylinders (204) are rotatably connected to the lifting frame, and the two lifting cylinders (204) of the pair of lifting cylinders (204) are arranged in an inverted eight-shaped structure, and the facing side walls of the cylinder bodies of the two lifting cylinders (204) have the above-mentioned clamping parts (2041).

[0012] In one embodiment: the first frame (203) includes a main beam and two vertical beams respectively fixed at both ends of the main beam, the flip frame (205) can be flipped and connected between the two vertical beams, and the rotary drive mechanism (201) is installed in the vertical beam.

[0013] In one embodiment, the lifting frame comprises a lower frame body (202), and the lower frame body (202) is provided with a rotary lock structure (2023).

[0014] In one embodiment: the lifting frame comprises a lower frame (202); the turning frame (205) comprises two turning seats (2052), a U-shaped upper frame (2053) fixedly mounted on the two turning seats (2052), and two matching beams (2051); the two matching beams (2051) and the upper frame (2053) are relatively fixedly arranged, and the two matching beams (2051) are respectively located below the two sides of the upper frame (2053), and the distance between the two matching beams (2051) is adapted to the width of the container; the lower frame (202) is provided with a lug, and the lifting cylinder (204) is rotatably connected to the lug.

[0015] In one embodiment: the lifting frame comprises a lower frame body (202), the lower frame body (202) is provided with a slide seat, the flip seat (2052) is provided with a lifting slide slot, and the slide seat is slidably connected to the lifting slide slot; the slide seat is provided with a first roller (2021) whose axis is arranged along a first direction and a second roller (2022) whose axis is arranged along a second direction, the first roller (2021) and the second roller (2022) are connected to the lifting slide slot, the first direction is perpendicular to the second direction, and the first direction and the second direction are both perpendicular to the lifting direction of the lifting frame.

[0016] The utility model solves the technical problem by adopting the second technical solution: a loading and unloading tool used in a multimodal transport container, which comprises:

[0017] First frame (203);

[0018] A turning frame (205), the turning frame (205) can be turned over and connected inside the first frame body (203);

[0019] A rotary drive mechanism (201), the rotary drive mechanism (201) being drivingly connected to the turning frame (205);

[0020] A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the turning frame (205); and

[0021] At least one pair of lifting cylinders (204), the upper ends of piston rods of the lifting cylinders (204) being rotatably connected to the tilting frame (205), the upper or middle parts of cylinder bodies of the lifting cylinders (204) being rotatably connected to the lifting frame, and the two lifting cylinders (204) of the pair of lifting cylinders (204) being arranged in an inverted figure eight structure, and the facing side walls of the cylinder bodies of the two lifting cylinders (204) having clamping parts (2041) for clamping containers.

[0022] The utility model solves the technical problem by adopting the third technical solution: a loading and unloading tool used in a multimodal transport container, which comprises:

[0023] First frame (203);

[0024] A turning frame (205), the turning frame (205) can be turned over and connected inside the first frame body (203);

[0025] A rotary drive mechanism (201), the rotary drive mechanism (201) being drivingly connected to the turning frame (205);

[0026] A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the turning frame (205); and

[0027] At least one pair of telescopic rods, the telescopic rods comprising a telescopic upper rod and a lower rod, the upper end of the upper rod being rotatably connected to the turning frame (205), the upper part or the middle part of the lower rod being rotatably connected to the lifting frame, the two telescopic rods of the pair of telescopic rods being arranged in an inverted eight-shaped structure, and the facing side walls of the lower rods of the two telescopic rods having clamping parts for clamping the container.

[0028] The utility model solves the technical problem by adopting the following technical solution: a loading and unloading tool for multimodal transport containers, which comprises:

[0029] Frame;

[0030] A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the frame body; and

[0031] A lifting cylinder connects the frame body and the lifting frame. The lifting cylinder includes a cylinder body and a piston rod slidably connected to the cylinder body and drives the lifting frame to rise and fall through the lifting cylinder. The piston rod of the lifting cylinder is arranged tilted from top to bottom toward the container relative to the sliding direction of the cylinder body. The lifting cylinder has a clamping part that gradually moves inward to closely contact the container during the process of the lifting frame being driven up by the lifting cylinder.

[0032] The utility model solves the technical problem by adopting the fifth technical solution: a loading and unloading tool used in a multimodal transport container, which comprises:

[0033] Frame;

[0034] A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the frame body; and

[0035] At least one pair of lifting cylinders, the upper ends of the lifting cylinder piston rods are rotatably connected to the frame body, the upper or middle part of the lifting cylinder body is rotatably connected to the lifting frame, and the two lifting cylinders of a pair of lifting cylinders are arranged in an inverted eight-shaped structure, and the facing side walls of the two lifting cylinder bodies have clamping parts for clamping the container.

[0036] The utility model solves the technical problem by adopting the following technical solution: a loading and unloading tool for multimodal transport containers, which comprises:

[0037] Frame;

[0038] A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the frame body; and

[0039] At least one pair of telescopic rods, the telescopic rods include a telescopic upper rod and a lower rod, the upper end of the upper rod is rotatably connected to the frame body, the upper part or the middle part of the lower rod is rotatably connected to the lifting frame, the two telescopic rods of the pair of telescopic rods are arranged in an inverted eight-shaped structure, and the facing side walls of the lower rods of the two telescopic rods have clamping parts for clamping the container.

[0040] Compared with the background technology, this technical solution has the following advantages:

[0041] The lifting mechanism of the attachment of the utility model can not only realize the loading and unloading of bulk materials in containers in multimodal transport through the rotary drive structure, but also can lift the container through the lifting drive and clamp the container through the lifting cylinder and the clamping part during the lifting process, thereby improving the stability and firmness of the container in the subsequent execution process. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Figure 1 It is a structural schematic diagram of the attachment of a specific implementation method.

[0044] Figure 2 It is a structural schematic diagram of the first frame of a specific implementation method.

[0045] Figure 3 It is a structural schematic diagram of a turnover frame of a specific implementation method.

[0046] Figure 4It is a structural schematic diagram of a lifting frame of a specific implementation method.

[0047] Figure 5 It is a schematic diagram of the principle that the clamping part gradually moves inwards during the ascending process of the lifting frame of the attachment in a specific implementation method.

[0048] Figure 6 It is a front view schematic diagram of a specific implementation method of the attachment connected to the container.

[0049] Figure 7 It is a three-dimensional schematic diagram of a container connected with accessories according to a specific implementation method.

[0050] Figure 8 It is a three-dimensional schematic diagram of a specific implementation method in which the attachment is connected to the container and the turning frame is turned over.

[0051] Explanation of reference numerals: rotary drive mechanism 201, lower frame 202, first frame 203, lifting cylinder 204, flip frame 205, translation cylinder 206, attachment 207, rotating component 208; first roller 2021, second roller 2022, rotary lock structure 2023, lug 2025, slide seat 2024; clamping part 2041; matching beam 2051, flip seat 2052, upper frame 2053. DETAILED DESCRIPTION

[0052] Please refer to Figures 1 to 8A loading and unloading attachment 207 used in an intermodal container includes a first frame 203, a tilting frame 205, a rotary drive mechanism 201, a lifting frame and a lifting cylinder 204 that can be connected to the intermodal container. The tipping frame 205 can be flipped and connected in the first frame 203; the rotary drive mechanism 201 is connected to the tipping frame 205 in a transmission manner; the lifting frame can be connected to the container A in multimodal transport, and the lifting frame can be lifted and slidably connected to the tipping frame 205; the lifting cylinder 204 connects the tipping frame 205 and the lifting frame, the lifting cylinder 204 includes a cylinder body 2041 and a piston rod 2042 slidably connected to the cylinder body 2041 and drives the lifting frame to rise and fall through the lifting cylinder 204, the piston rod 2042 of the lifting cylinder 204 is tilted from top to bottom toward the direction of container A relative to the sliding direction of the cylinder body 2041, the lifting cylinder 204 has a clamping part 2041 that gradually moves inward to closely contact the container during the process of the lifting frame being driven by the lifting cylinder 204 to rise, the clamping part 2041 is such as a friction pad fixedly arranged on the lifting cylinder 204, or it is only a part of the lifting cylinder 204 that contacts the container. In the specific structure: at least one pair of lifting cylinders 204 is provided, the upper end of the piston rod of the lifting cylinder 204 is rotatably connected to the flip frame 205, the upper part or the middle part of the cylinder body of the lifting cylinder 204 is rotatably connected to the lifting frame, and the two lifting cylinders 204 of the pair of lifting cylinders 204 are arranged in an inverted eight-shaped structure, and the facing side walls of the cylinder bodies of the two lifting cylinders 204 have the above-mentioned clamping parts 2041. During the lifting process of the lifting frame, the two cylinder bodies rotate inward relative to the rotation point of the lifting frame, so that the clamping parts 2041 gradually move inward to clamp the container A. Then, the lifting mechanism can not only realize the lifting drive to lift the container A, but also play the role of clamping the container A during the lifting process, thereby improving the stability and firmness of the container during the flipping process. The attachment of this embodiment can not only be applied to the loader and unloader of this embodiment, but also can cooperate with other engineering vehicles to realize the function of container unloading.

[0053] The first frame 203 includes a main beam 2031 and two vertical beams 2032 respectively fixed at both ends of the main beam 2031. The flip frame 205 can be flipped and connected between the two vertical beams 2032, and the rotary drive mechanism 201 is installed in the vertical beam. The lifting frame includes a lower frame 202; the flip frame 205 includes two flip seats 2052, a square-shaped upper frame 2053 fixed on the two flip seats 2052, and two matching beams 2051. The two matching beams 2051 and the upper frame 2053 are relatively fixedly arranged, and the two matching beams 2051 are respectively located directly below the two rods of the upper frame 2053, and the spacing between the two matching beams 2051 is adapted to the width of the container; the lower frame 202 is convexly provided with a lug 2025, and the lifting cylinder 204 is rotatably connected to the lug 2025; the lower frame 202 is provided with a rotary lock structure 2023. The stability and firmness of the container during the rollover process can be improved by using the matching beam.

[0054] The lower frame 202 is provided with a slide 2024, and the flip seat 2052 is provided with a lifting slide groove, and the slide 2024 is slidably connected to the lifting slide groove; the slide 2024 is provided with a first roller 2021 whose axis is arranged along the first direction and a second roller 2022 whose axis is arranged along the second direction, and the first roller 2021 and the second roller 2022 are connected to the lifting slide groove, and the first direction and the second direction are perpendicular to the lifting direction of the lifting frame, so as to reduce friction and improve lifting smoothness.

[0055] During use, the lower frame 202 is connected to the container, and the lifting cylinder 204 drives the lifting frame to rise. After rising to the right position, the turning frame 205 turns over to dump the bulk cargo in the container.

[0056] The working attachment of this embodiment is applied in railway multimodal transport, such as connecting the working attachment to a loading and unloading machine, which includes a vehicle body, a lifting mechanism, the attachment 207 and a rotation drive mechanism. The lifting mechanism is mounted on the vehicle body, and the lifting mechanism is provided with a lifting seat capable of vertical lifting. The first frame 203 can be connected to the lifting seat in a vertical rotation manner, and the rotation drive mechanism is connected to the first frame 203 to drive the attachment 207 to rotate vertically, that is, to rotate horizontally. Therefore, in this embodiment, the first frame 203 is also a horizontal rotating frame 203, and the attachment 207 is also a horizontal rotating attachment. The rotation drive mechanism is such as a motor or a hydraulic motor. Through the rotation of the first frame 203 and the vertical lifting of the lifting seat, the loader and unloader can directly cooperate with the F-TR lock (rotary lock) on the railway flat car to realize the installation and locking of the hoisted container A on the railway flat car B, or the unlocking and lifting of the container A on the railway flat car; the car body itself can also transport the container to a designated location or transport it from other locations to the railway flat car, playing a role in off-road transportation; in conjunction with the tipping frame, the bulk cargo in the container can be dumped out. The lifting mechanism includes a lifting cylinder, a boom, a boom cylinder and a boom structure; the boom structure includes a basic arm, a telescopic arm that can be slidably connected to the basic arm and a telescopic drive member, the telescopic drive member connects the telescopic arm and drives the telescopic arm to slide relative to the basic arm to achieve telescoping, the telescopic arm is provided with the above-mentioned lifting seat, and the auxiliary rotary lock structure is aligned with the corner hole on the container by the front and rear contraction of the boom; the first end of the lifting cylinder is rotatably connected to the vehicle body, and the second end is rotatably connected to the basic arm; the boom has two first connecting arms and a second connecting arm that are matched in an inverted V shape, a first connecting arm is rotatably connected to the vehicle body, the first end of the boom cylinder is rotatably connected to the vehicle body, the second end is rotatably connected to the other first connecting arm, and the second connecting arm is rotatably connected to the basic arm. The connection position where the second end of the lifting cylinder is rotatably connected to the basic arm and the connection position where the second connecting arm is rotatably connected to the basic arm are arranged front and back relative to the boom structure. The above-mentioned structure can control the vertical lifting of the lifting seat and the entire vehicle body structure is stable and reliable under the premise of ensuring transportation. Furthermore, it also includes a leveling cylinder, the first end of which is rotatably connected to the lifting seat, and the second end is rotatably connected to the first frame. When the container is lifted or transported, the leveling cylinder can ensure that the tilting frame and the container will not shake as the container is lifted or transported. Further, it also includes a translation cylinder 206 and a rotating component 208, the rotating component is rotatably connected to the lifting seat, the rotating drive mechanism is transmission-connected to the rotating component, and the rotating drive mechanism is such as a motor, a hydraulic motor, etc.; the first frame is horizontally connected to the rotating component, the first end of the translation cylinder is connected to the rotating component, and the second end is connected to the first frame, the translation cylinder drives the attachment to translate relative to the rotating component, and the translation cylinder can assist the rotary lock structure on the lower frame to align with the corner hole on the container, thereby improving the accuracy of unlocking and locking.

[0057] The above description is only a preferred embodiment of the present invention, and therefore cannot be used to limit the scope of implementation of the present invention. That is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the specification should still fall within the scope of protection covered by the present invention.

Claims

1. A loading and unloading tool for use in multimodal transport containers, characterized in that: It includes: First frame (203); A turning frame (205), the turning frame (205) can be turned over and connected inside the first frame body (203); A rotary drive mechanism (201), the rotary drive mechanism (201) being drivingly connected to the turning frame (205); A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the turning frame (205); and A lifting cylinder (204) is provided, wherein the lifting cylinder (204) is connected to the tilting frame (205) and the lifting frame. The lifting cylinder (204) comprises a cylinder body and a piston rod slidably connected to the cylinder body, and the lifting frame is driven to rise and fall by the lifting cylinder (204). The piston rod of the lifting cylinder (204) is arranged to be inclined from top to bottom in a direction toward the container relative to the sliding direction of the cylinder body. The lifting cylinder (204) has a clamping portion (2041) that gradually moves inwards to closely contact the container during the process of the lifting frame being driven to rise by the lifting cylinder (204).

2. The loading and unloading tool for multimodal transport containers according to claim 1, characterized in that: The upper end of the piston rod of the lifting cylinder (204) is rotatably connected to the tilting frame (205), and the upper or middle part of the cylinder body of the lifting cylinder (204) is rotatably connected to the lifting frame. The cylinder body of the lifting cylinder (204) has the above-mentioned clamping part (2041).

3. The loading and unloading tool for multimodal transport containers according to claim 1, characterized in that: At least one pair of lifting cylinders (204) is provided, the upper ends of the piston rods of the lifting cylinders (204) are rotatably connected to the tilting frame (205), the upper or middle parts of the cylinder bodies of the lifting cylinders (204) are rotatably connected to the lifting frame, and the two lifting cylinders (204) of the pair of lifting cylinders (204) are arranged in an inverted eight-shaped structure, and the facing side walls of the cylinder bodies of the two lifting cylinders (204) have the above-mentioned clamping parts (2041).

4. The loading and unloading tool for multimodal transport containers according to claim 1, characterized in that: The first frame (203) comprises a main beam and two vertical beams respectively fixed at two ends of the main beam, the turning frame (205) can be turned and connected between the two vertical beams, and the rotary drive mechanism (201) is installed in the vertical beams.

5. The loading and unloading attachment for use in a multimodal transport container according to claim 1, characterized in that: The lifting frame comprises a lower frame body (202), and the lower frame body (202) is provided with a rotary lock structure (2023).

6. The loading and unloading attachment for use in a multimodal transport container according to claim 1, characterized in that: The lifting frame comprises a lower frame body (202); the turning frame (205) comprises two turning seats (2052), an upper frame body (2053) in a U-shaped shape fixedly arranged on the two turning seats (2052), and two matching beams (2051); the two matching beams (2051) and the upper frame body (2053) are relatively fixedly arranged, and the two matching beams (2051) are respectively located below the two sides of the upper frame body (2053), and the distance between the two matching beams (2051) is adapted to the width of the container; the lower frame body (202) is protrudingly provided with a lug, and the lifting oil cylinder (204) is rotatably connected to the lug.

7. The loading and unloading attachment for use in a multimodal transport container according to claim 6, characterized in that: The lifting frame comprises a lower frame body (202), the lower frame body (202) is provided with a sliding seat, the flip seat (2052) is provided with a lifting slide groove, and the sliding seat is slidably connected to the lifting slide groove; the sliding seat is provided with a first roller (2021) whose axis is arranged along a first direction and a second roller (2022) whose axis is arranged along a second direction, the first roller (2021) and the second roller (2022) are connected to the lifting slide groove, the first direction and the second direction are perpendicular, and the first direction and the second direction are both perpendicular to the lifting direction of the lifting frame.

8. A loading and unloading tool used in multimodal transport containers, characterized by: It includes: First frame (203); A turning frame (205), the turning frame (205) can be turned over and connected inside the first frame body (203); A rotary drive mechanism (201), the rotary drive mechanism (201) being drivingly connected to the turning frame (205); A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the turning frame (205); and At least one pair of lifting cylinders (204), the upper ends of piston rods of the lifting cylinders (204) being rotatably connected to the tilting frame (205), the upper or middle parts of cylinder bodies of the lifting cylinders (204) being rotatably connected to the lifting frame, and the two lifting cylinders (204) of the pair of lifting cylinders (204) being arranged in an inverted figure eight structure, and the facing side walls of the cylinder bodies of the two lifting cylinders (204) having clamping parts (2041) for clamping containers.

9. A loading and unloading tool for use in multimodal transport containers, characterized in that: It includes: First frame (203); A turning frame (205), the turning frame (205) can be turned over and connected inside the first frame body (203); A rotary drive mechanism (201), the rotary drive mechanism (201) being drivingly connected to the turning frame (205); A lifting frame that can be connected to the multimodal transport container, the lifting frame can be raised and lowered and slidably connected to the turning frame (205); and At least one pair of telescopic rods, the telescopic rods comprising a telescopic upper rod and a lower rod, the upper end of the upper rod being rotatably connected to the turning frame (205), the upper part or the middle part of the lower rod being rotatably connected to the lifting frame, the two telescopic rods of the pair of telescopic rods being arranged in an inverted eight-shaped structure, and the facing side walls of the lower rods of the two telescopic rods having clamping parts for clamping the container.

10. A loading and unloading tool used in multimodal transport containers, characterized in that: It includes: Frame; A lifting frame that can be connected to an intermodal container, the lifting frame can be lifted and slidably connected to the frame body; and A lifting cylinder connects the frame body and the lifting frame. The lifting cylinder includes a cylinder body and a piston rod slidably connected to the cylinder body and drives the lifting frame to rise and fall through the lifting cylinder. The piston rod of the lifting cylinder is arranged tilted from top to bottom toward the container relative to the sliding direction of the cylinder body. The lifting cylinder has a clamping part that gradually moves inward to closely contact the container during the process of the lifting frame being driven up by the lifting cylinder.

11. A loading and unloading tool used in multimodal transport containers, characterized in that: It includes: Frame; A lifting frame that can be connected to an intermodal container, the lifting frame can be lifted and slidably connected to the frame body; and At least one pair of lifting cylinders, the upper ends of the lifting cylinder piston rods are rotatably connected to the frame body, the upper or middle part of the lifting cylinder body is rotatably connected to the lifting frame, and the two lifting cylinders of a pair of lifting cylinders are arranged in an inverted eight-shaped structure, and the facing side walls of the two lifting cylinder bodies have clamping parts for clamping the container.

12. A loading and unloading tool used in multimodal transport containers, characterized in that: It includes: Frame; A lifting frame that can be connected to an intermodal container, the lifting frame can be lifted and slidably connected to the frame body; and At least one pair of telescopic rods, the telescopic rods include a telescopic upper rod and a lower rod, the upper end of the upper rod is rotatably connected to the frame body, the upper part or the middle part of the lower rod is rotatably connected to the lifting frame, the two telescopic rods of the pair of telescopic rods are arranged in an inverted eight-shaped structure, and the facing side walls of the lower rods of the two telescopic rods have clamping parts for clamping the container.

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