U-shaped suspension arm convenient to transport

Abstract

The utility model relates to a U-shaped suspension arm which is used for transporting and balancing heavy objects. The lifting arm comprises an arm rod structure, a counterweight structure, a counterweight block, a lifting ring structure and a hanging arm structure. The arm rod structure is composed of a connecting rod part, an upper rod part and a lower rod part, the length of the connecting rod part is larger than that of one container, and the height of the connecting rod part is larger than the thickness of the top of one container. The counterweight structure is arranged on the upper rod part and can be adjusted according to the position and weight of goods hung on the hanging arm structure. The balancing weight is installed on the lower portion of the balancing weight structure, and the weight is adjusted through the combination of the T-shaped sliding groove and the T-shaped protrusion. The lifting ring structure is used for lifting the lifting arm on a crown block or a crane. The hanging arm structure is installed on the lower portion of the arm rod structure and used for supporting and fixing the suspension arm. The utility model has the advantages that the counterweight structure can adjust the number and the position of the counterweight blocks, so that the balance of the suspension arm is realized; meanwhile, through the butt joint structure, the suspension arm can be disassembled and loaded into a container, and the transportation cost is reduced. The utility model has the advantages of simple and practical structure, convenience and rapidness, and is suitable for various transportation and hoisting operation occasions.

Description

Technical Field

[0001] The utility model belongs to the technical field of cargo hoisting tools and relates to a U-shaped lifting arm which is convenient for transportation. Background Art

[0002] U-shaped boom is widely used as a tool for loading and unloading containers in workshops, stations, docks, and ocean freight. It is used to load and unload glass, steel, boxed goods, etc. It has the advantages of simple structure, low purchase cost, and wide loading and unloading range. It can be used to load and unload 20-foot and 40-foot containers. When loading and unloading goods, it will not forcefully push or pull, thus avoiding damage to the goods being loaded and unloaded. It only needs to be used in conjunction with an overhead crane and a crane.

[0003] However, conventional U-shaped booms have the following disadvantages:

[0004] 1. The center of gravity of the boom and the cargo must be perfectly matched and placed in a fixed position according to the preset specifications and dimensions to keep the boom in a completely balanced state. Otherwise, the boom may tilt, causing the cargo to fall and causing major safety incidents;

[0005] 2. For objects of unconventional specifications, since the crane arm needs to be absolutely balanced during operation, objects without placement holes marked on the crane arm need to be temporarily measured before placement. This wastes time in actual operation and introduces many unsafe factors;

[0006] 3. Since the boom needs to be absolutely balanced during operation, it is impossible to load and unload irregular objects because the center of gravity and position cannot be determined;

[0007] 4. In order to keep the boom level, the upper arm of the boom is usually longer than the lower arm. However, this fixed extra-long length makes it impossible for the boom itself to fit into the container, so only a larger container can be used during transportation, which increases transportation costs;

[0008] 5. When the shipping manufacturer is loading the goods, if the goods are close to the bottom of the cabinet, the boom cannot remain horizontal because the goods cannot be fixed at the preset fixed points, making it impossible to unload the goods. Utility Model Content

[0009] In view of the above problems, the utility model provides a U-shaped boom which is easy to transport, has a movable counterweight and is easier to balance.

[0010] To achieve the above purpose, the utility model adopts the following technical solutions.

[0011] A U-shaped boom that is easy to transport includes an arm structure, a counterweight structure, a counterweight block, a lifting ring structure, and an arm structure. The arm structure is a channel steel structure including an upper rod, a lower rod, and a connecting rod. The connecting rod is used to connect the upper rod and the lower rod. The upper rod and the lower rod include a docking structure. The lifting ring structure includes a lifting ring, a lifting ring sleeve, and a lifting ring fixing hole. The lifting ring is used to lift the U-shaped boom to a lifting ring on an overhead crane or a crane. The lifting ring sleeve prevents the U-shaped boom from rotating when it moves laterally, and the lifting ring fixing hole prevents the lifting ring sleeve from moving when the U-shaped boom moves laterally. The counterweight structure and the lifting ring structure are arranged on the upper rod, and the arm structure is arranged on the lower rod. The length of the upper rod and the connecting rod is greater than the length of a container, and the height of the connecting rod is greater than the thickness of a container top.

[0012] The counterweight structure includes a counterweight structure sleeve sleeved on the upper rod, a counterweight structure T-shaped protrusion located on the side, a detachable counterweight block and a fixing structure. The spacing between adjacent counterweight structure T-shaped protrusions is the same as the width of the counterweight block. The counterweight block includes a T-shaped slide groove and a counterweight structure T-shaped protrusion, and multiple counterweight blocks can be installed.

[0013] The counterweight block comprises a T-shaped slide groove and a T-shaped protrusion, and the counterweight block can be installed on the counterweight block.

[0014] The docking structure is arranged on one side of the upper rod, the lower rod and both sides of the connecting rod, and is installed or disassembled on the connecting rod through the docking structure. This design allows the boom to be directly loaded into a container by disassembling the upper rod and the lower rod, thereby reducing transportation costs.

[0015] The beneficial effects of the utility model are:

[0016] (1) The counterweight structure in the utility model includes a detachable counterweight block, and the counterweight structure can also slide. The number of counterweight blocks installed or the position of the counterweight structure can be set according to the use requirements, and the number of counterweight blocks can be adjusted to ensure balance when loading goods of different specifications; the convenience and safety of the use of the boom can be greatly improved;

[0017] (2) When loading into a container, the utility model can use the docking structure to disassemble the upper rod, the lower rod and the connecting rod, so that the boom can be directly loaded into the container, which can greatly reduce the transportation cost and storage cost;

[0018] (3) In addition to the link rod, the utility model also provides a link sleeve as an auxiliary lifting point. When lifting items of unusual specifications or when it is difficult to determine the center of gravity of the cargo, the link structure and the auxiliary lifting point can be used to use two hooks for lifting, thus avoiding the problem of boom imbalance caused by a single lifting point. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a three-dimensional schematic diagram of the overall structure of the utility model.

[0020] Figure 2 It is a three-dimensional schematic diagram of the counterweight structure in the utility model.

[0021] Figure 3 It is a three-dimensional schematic diagram of the counterweight block in the utility model.

[0022] Figure 4 It is a front view of the overall structure of the utility model.

[0023] Figure 5 It is a three-dimensional schematic diagram of the hanging arm structure of the utility model.

[0024] Figure 6 It is a schematic structural stereogram of the lifting hook in the utility model. DETAILED DESCRIPTION

[0025] like Figure 1-6 As shown, a U-shaped boom for placing a counterweight block conveniently comprises an arm structure 1, a counterweight structure 2, a counterweight block 3, a lifting ring structure 4, and an arm structure 5. Specifically, the arm structure 1 is a channel steel structure, the counterweight structure 2 and the lifting ring structure 4 are mounted on the upper part of the arm structure 1, the arm structure 5 is mounted on the lower part of the arm structure 1, the counterweight block 3 is mounted on the side of the counterweight structure, and more counterweight blocks 3 can be mounted on the side of the counterweight block 3.

[0026] The arm structure 1 includes a connecting rod 11, an upper rod 12, a lower rod 13, a docking structure 14, an auxiliary lifting ring structure 15, and a fixing hole 16. The length of the upper rod and the connecting rod is greater than the length of a container, and the height of the connecting rod is greater than the thickness of a container top. The docking structure 14 is arranged at both ends of the connecting rod 11 and one side of the upper rod 12 and the lower rod 13, so that the connecting rod 11 can be tightened by screws to fix or disconnect the upper rod 12 and the lower rod 13. The connecting rod 11 includes an auxiliary lifting ring structure 15. The auxiliary lifting ring structure 15 is used to simultaneously use the lifting ring structure and the auxiliary lifting ring structure when it is difficult to determine the center of gravity of the goods when lifting irregular items and irregular items, so as to avoid the problem of uneven U-hanging caused by a single lifting point. The moving control ring 18 can be tied with ropes to facilitate the adjustment of the moving direction and distance of the U-shaped boom;

[0027] The counterweight structure 2 is arranged on the upper rod 12. The counterweight structure can be arranged to balance the entire boom by changing the number of counterweights according to the position and weight of the cargo hung on the boom structure, or by changing the position on the upper rod 12. Specifically, the counterweight structure 2 includes a mounting ring 21, a counterweight structure T-shaped protrusion 22, a counterweight structure sleeve 23, a counterweight support plate 24, and a fixing hole 25. The counterweight structure sleeve 23 can be sleeved on the upper rod 12, and the counterweight structure sleeve 23 is tightened and fixed in position by screws in the fixing hole 25 when the upper rod 12 slides horizontally to a suitable position. The counterweight structure T-shaped protrusion 22 matches the T-shaped slide groove 34, and the T-shaped slide groove 34 of the counterweight can slide into the counterweight structure T-shaped protrusion 22 to achieve the purpose of hanging and adjusting the weight of the counterweight structure.

[0028] The counterweight 3 includes a counterweight body 31, a handle 32, a T-shaped protrusion 33, and a T-shaped slot 34. The T-shaped protrusion 33 matches the T-shaped slot 34, and the T-shaped protrusion 33 can slide into the T-shaped slot 34 to combine multiple counterweights.

[0029] The lifting ring structure 4 includes a lifting ring 41, a lifting ring sleeve 42, and a lifting ring fixing hole 43. The lifting ring 41 can be lifted on a lifting hook of an overhead crane or a crane. The lifting ring sleeve 42 matches the upper rod 12, and the counterweight structure sleeve 23 is tightened and fixed in position in the lifting ring fixing hole 43 by screws when the upper rod 12 slides horizontally to a suitable position.

[0030] The hanging arm structure 5 includes a sleeve 51, a hanging arm 52, a limit 53, a wall mounting hole 54, and a fixing hole 55. The sleeve 51 matches the lower rod 13, and the sleeve 51 is tightened and fixed in position in the fixing hole 55 by screws when the lower rod 13 slides horizontally to a suitable position. The hanging arm 52 can be inserted into the wall mounting hole 54 for fixing, so that when dealing with goods of different specifications, the hanging arm 52 can be selected to be inserted into a suitable wall mounting hole 54, or multiple hanging arms 52 can be inserted into the wall mounting hole 54 to ensure that the boom is absolutely balanced during operation. Preferably, the wall hanging structure is provided in multiples, and during use, the wall hanging structure can be moved to a suitable position according to the length, weight, and shape of the goods and then fixed on the lower rod.

[0031] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of application of the present invention should still fall within the scope of patent coverage of the present invention.

Claims

1. A U-shaped boom that is easy to transport, comprising an arm structure (1), a counterweight structure (2), a counterweight block (3), a lifting ring structure (4) and a hanging arm structure (5), characterized in that: The arm structure (1) comprises a connecting rod (11), an upper rod (12), a lower rod (13), a docking structure (14), an auxiliary lifting ring structure (15) and a moving control ring (16); wherein the connecting rod (11) is provided with an upper rod (12) above, a lower rod (13) below, a docking structure (14) on one side, an auxiliary lifting ring structure (15) on the top, and a moving control ring (16) on the right; the counterweight structure (2) comprises a mounting ring (21), a counterweight structure T-shaped protrusion (22), a counterweight structure sleeve (23), a counterweight block support plate (24) and a fixing hole (25); wherein the counterweight structure sleeve (23) can be sleeved on the upper rod (11) 2), the counterweight structure is fixed by screws, and the T-shaped protrusion (22) of the counterweight structure can be inserted into the T-shaped groove (34) to fix the counterweight block (3); the counterweight block (3) includes a counterweight block body (31), a handle (32), a T-shaped protrusion (33) and a T-shaped groove (34), wherein the handle (32) is used to facilitate the installation or removal of the counterweight block (3), and the T-shaped protrusion (33) is connected with the T-shaped protrusion (22) of the counterweight structure and the T-shaped groove (34) on the counterweight block (3) to fix the counterweight block (3) on other counterweight blocks (3) or the counterweight structure (2); the lifting ring structure (4) is arranged at the top of the arm structure (1), and the hanging arm structure (5) is arranged at the bottom of the arm structure (1).

2. A U-shaped boom for easy transportation according to claim 1, characterized in that: The lifting ring structure (4) comprises a lifting ring (41), a lifting ring sleeve (42), and a lifting ring fixing hole (43); the lifting ring sleeve (42) can be installed on the upper rod (12), and the lifting ring fixing hole (43) can be fixed on the upper rod (12).

3. The U-shaped boom for easy transportation according to claim 1, characterized in that: The hanging arm structure (5) comprises a sleeve (51), a hanging arm (52), a limiter (53), a wall mounting hole (54), and a fixing hole (55); the sleeve (51) can be mounted on the lower rod (13); the fixing hole (55) can fix the sleeve (51); and the hanging arm (52) is mounted on the hanging arm mounting hole (54).

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