Hoisting tool

Abstract

The utility model relates to a steel structure hoisting technical field discloses a hoisting tool, include: main frame body, the upper end symmetry is equipped with two or more than first lifting lugs, the lower end horizontal crossbar is equipped with a plurality of first counterweight sliding blocks on the sliding, be equipped with a plurality of positioning holes on the crossbar, first fixed counterweight, the first end of fixed in the lower side of main frame body, second lifting lug, the second end of fixed in the lower side of main frame body, first inclined brace, one end is connected in the middle part of crossbar, the other end is inclined downward and is connected on second lifting lug, be equipped with a plurality of positioning holes on first inclined brace, second counterweight sliding block, sliding is established on first inclined brace, positioning bolt, insert in positioning hole. The hoisting tool is applied to tower crane or truck crane, can expand the hoisting range of tower crane or truck crane.

Description

Technical Field

[0001] This utility model relates to the field of steel structure hoisting technology, specifically, to a hoisting tool. Background Technology

[0002] In the installation and construction of high-rise steel structures, tower cranes or truck cranes are generally used for hoisting. Sometimes, due to various factors, tower cranes may not completely cover a small portion of the cantilevered steel beams, resulting in some cantilevered beams of the high-rise structure being outside the hoisting range of the tower crane. Since it is a high-rise structure, the boom length of small and medium-sized truck cranes is insufficient, and large truck cranes are inconvenient to use for standing on the basement roof. Therefore, a hoisting device that can lift beams outside the range of tower cranes is needed. Utility Model Content

[0003] This utility model was made to solve the above-mentioned technical problems, and its purpose is to provide a lifting tool that can expand the lifting range of tower cranes or truck cranes.

[0004] According to one embodiment of the present invention, a lifting tool is provided, comprising: a main frame, with two or more first lifting lugs symmetrically arranged at the upper end, and a plurality of first counterweight sliders slidably arranged on a horizontal crossbar at the lower end, the crossbar having a plurality of positioning holes; a first fixed counterweight fixed to a first end on the lower side of the main frame; a second lifting lug fixed to a second end on the lower side of the main frame; a first diagonal brace, one end connected to the middle of the crossbar, the other end inclined downward and connected to the second lifting lug, the first diagonal brace having a plurality of positioning holes; a second counterweight slider slidably arranged on the first diagonal brace; and a positioning pin inserted into the positioning hole.

[0005] In one embodiment, the main frame is an isosceles triangle with two first lifting lugs symmetrically arranged at the waist.

[0006] As one embodiment, a second fixed counterweight is provided between the second lifting lug and the second end of the main frame, and the weight of the second fixed counterweight is less than the weight of the first fixed counterweight.

[0007] In one embodiment, a second diagonal brace is provided between the lower end of the first fixed counterweight and the middle part of the crossbar.

[0008] In one implementation, the second diagonal brace is arranged symmetrically to the first diagonal brace.

[0009] In one implementation, the first fixed counterweight and the second fixed counterweight are several steel pipes.

[0010] In one embodiment, the crossbar, the first diagonal brace, and the second diagonal brace are steel pipes or steel rods.

[0011] In one implementation, the first counterweight slider and the second counterweight slider are steel plates.

[0012] In one embodiment, the left and right portions of the crossbar are respectively provided with a plurality of the first counterweight sliders.

[0013] In one embodiment, the positioning holes on the first diagonal brace and the positioning holes on the crossbar are arranged vertically opposite each other.

[0014] Based on the above description and practice, the lifting tool of this utility model has a relatively long main frame. Second lifting lugs and first fixed counterweights are respectively installed on both sides of its lower end, and two first lifting lugs are installed at the upper end. When lifting operations are required, the hook of the tower crane or crane is connected to the first lifting lugs at the upper end of the main frame, and the goods to be lifted are connected to the second lifting lugs. With the help of the first fixed counterweights, the goods are kept in a balanced state below the main frame. Compared to directly using a tower crane or crane to lift goods, this method can expand the horizontal lifting range, allowing goods to be lifted to locations inaccessible to tower cranes or cranes.

[0015] In addition, several first counterweight sliders are installed on the crossbar at the lower end of the main frame. Combined with the first diagonal brace and the second counterweight slider on it, the center of gravity of the lifting tool can be flexibly adjusted so that it can be in a horizontal and balanced state before and after lifting the goods. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the lifting tool used in one embodiment of the present invention when lifting goods.

[0017] Figure 2 This is a schematic diagram of the lifting tool in one embodiment of the present invention when it is not lifting goods.

[0018] Figure 3 This is a structural diagram illustrating the application of a hoisting tool on a tower crane to lift goods in one embodiment of the present invention.

[0019] The attached figures are labeled as follows:

[0020] 1. Horizontal bar; 2. Diagonal bar; 3. First fixed counterweight; 4. First lifting lug; 5. Second lifting lug; 6. First diagonal brace; 7. First counterweight slider; 8. Second counterweight slider; 9. Second diagonal brace; 10. Positioning pin; 11. Cargo; 12. Second fixed counterweight; 13. Wire rope. Detailed Implementation

[0021] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be more comprehensive and complete, and will fully convey the concept of exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0022] Furthermore, the accompanying drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted. It should be noted that in this disclosure, the terms "comprising," "configured with," and "set in" are used to indicate an open-ended inclusion, meaning that additional elements / components / etc. may exist besides those listed; the terms "first," "second," etc., are used only as labels and are not intended to limit the number or order of objects; the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 this utility model.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] According to one embodiment of this utility model, a hoisting tool is provided. Please refer to [reference needed]. Figures 1 to 3 The lifting tool includes a main frame, a first fixed counterweight 3, a second lifting lug 5, a first diagonal brace 6, a second counterweight slider 8, and a positioning pin 10.

[0025] In this embodiment, the main frame is an isosceles triangular frame, including a horizontal crossbar 1 at the lower end and two symmetrically arranged diagonal bars 2 at the upper side, providing a relatively stable structure. In other embodiments, the shape of the main frame can be adjusted according to the actual hoisting environment, ensuring that it has a horizontal crossbar 1 at the lower end to achieve the corresponding function of expanding the hoisting range.

[0026] The upper end of the main frame is symmetrically provided with two or more first lifting lugs 4, and the lower end of the horizontal crossbar 1 is provided with several first counterweight sliders 7. The crossbar 1 is provided with several positioning holes (not shown in the figure). As shown in the figure, in this embodiment, the waist of the main frame is symmetrically provided with two first lifting lugs 4, which can be connected to the hook of the tower crane or crane above through the wire rope 13.

[0027] In other embodiments, the number of first lifting lugs 4 can be appropriately increased according to the actual weight of the goods 11 to be lifted, so as to increase the number of wire ropes 13 accordingly and improve the load-bearing capacity of the lifting tool.

[0028] The first fixed counterweight 3 is fixed to the first end of the lower side of the main frame, and the second lifting lug 5 is fixed to the second end of the lower side of the main frame. As shown in the figure, the first fixed counterweight 3 is located at the lower left end of the main frame, and the second lifting lug 5 is located at the lower right end of the main frame. When the goods 11 are lifted through the second lifting lug 5, the first fixed counterweight 3 can balance the goods 11, so that the main frame can maintain horizontal balance as much as possible when it is lifted.

[0029] One end of the first diagonal brace 6 is connected to the middle of the crossbar 1, and the other end is inclined downward and connected to the second lifting lug 5. The first diagonal brace 6 is provided with several positioning holes. The second counterweight slider 8 is slidably mounted on the first diagonal brace 6. The positioning pin 10 is inserted into the positioning hole.

[0030] During hoisting operations, the second counterweight slider 8 is moved upwards to the middle position of the crossbar 1, and then the positioning pin 10 is inserted into the positioning hole to prevent the second counterweight slider 8 from moving to the side. Based on the weight difference between the cargo 11 to be hoisted and the first fixed counterweight 3, the position of the first counterweight slider 7 on the crossbar 1 is adjusted, and the positioning pin 10 is inserted into the positioning hole to position it, ensuring that the weight on both sides of the main frame is equal and in a horizontally balanced state. Afterwards, the cargo 11 can be hoisted and transported to the required location. During hoisting, the cargo 11 can be positioned further forward than the hook of the tower crane or crane, while the main frame remains relatively stable, allowing safe access to locations inaccessible to the tower crane or crane, thus expanding the hoisting range of the tower crane or crane.

[0031] When the cargo 11 is hoisted into place and the second lifting lug 5 needs to be released, first remove the positioning pin 10, allowing the second counterweight slider 8 to slide downwards from the top of the first diagonal brace 6 to the far right of the main frame. The first counterweight slider 7 on the crossbar 1 can also slide appropriately to the right along the crossbar 1 according to the weight of the first fixed counterweight 3, ensuring that after the cargo 11 is lowered from the second lifting lug 5, the main frame can still maintain a horizontal balance and will not tip over due to the first fixed counterweight 3.

[0032] This lifting tool utilizes the main frame and its multiple counterweights and positioning pins 10 to expand the lifting range while flexibly adjusting the center of gravity of the lifting tool, ensuring that it remains in a horizontal and balanced state before and after lifting the goods 11, thus providing a high level of safety.

[0033] As one implementation, a second fixed counterweight 12 is also provided between the second lifting lug 5 and the second end of the main frame (i.e., the right end in the figure). The weight of the second fixed counterweight 12 is less than the weight of the first fixed counterweight 3. By setting the second fixed counterweight 12, when the lifting tool is not lifting the goods 11, the horizontal balance of the main frame can be achieved by simply adjusting the position of the second counterweight slider 8 or a small number of the first counterweight sliders 7.

[0034] For example, by setting the weight between the first fixed counterweight 3, the second fixed counterweight 12, and the second counterweight slider 8, the second counterweight slider 8 can be positioned at the lower end of the first diagonal brace 6, and the first counterweight slider 7 can be positioned in the middle of the crossbar 1, ensuring that the main frame is in a horizontally balanced state. With this structure, when it is necessary to separate the second lifting lug 5 from the cargo 11, simply remove the positioning pin 10 on the first diagonal brace 6, and the second counterweight slider 8 will slide down, balancing the weight of the first fixed counterweight 3 and ensuring that the main frame remains horizontally balanced after the second lifting lug 5 is separated from the cargo 11.

[0035] In one embodiment, a second diagonal brace 9 is provided at the lower end of the first fixed counterweight 3 and the middle of the crossbar 1. In this structural configuration, the first fixed counterweight 3, the second diagonal brace 9, and the crossbar 1 form a triangular structure, which improves stability.

[0036] Furthermore, in this embodiment, the second diagonal brace 9 is symmetrically arranged with the first diagonal brace 6, making it easier for the user to control the balance of the lifting tool.

[0037] As one implementation method, the first fixed counterweight 3 and the second fixed counterweight 12 are several steel pipes or steel rods, which have a certain weight to balance the goods 11 to be lifted, and also have high strength to prevent deformation during use, thereby significantly improving the service life of the tool.

[0038] In one embodiment, the crossbar 1, the first diagonal brace 6, and the second diagonal brace 9 are steel pipes. For example, they can be square tubes, round tubes, or other structural components, which are relatively lightweight and will not significantly increase the lifting weight. They also facilitate the sliding of the counterweight slider and provide positioning holes for the positioning pin 10 to be inserted.

[0039] As one implementation method, in this embodiment, the first counterweight slider 7 and the second counterweight slider 8 are made of steel plates, which can achieve a large weight with a small volume, making it convenient for users to adjust the weight on both sides of the main frame in real time according to the weight of the goods 11 being hoisted, so as to maintain horizontal balance.

[0040] In one embodiment, several first counterweight sliders 7 are slidably provided on the left and right sides of the crossbar 1. When the weight of the goods 11 to be hoisted is large and the balance cannot be maintained by the first fixed counterweight 3 alone, more of the first counterweight sliders 7 can be slid to the left end in the figure to achieve the purpose of balancing the goods 11.

[0041] In one embodiment, the positioning holes on the first diagonal brace 6 and the positioning holes on the crossbar 1 are vertically opposite each other. After the positioning pin 10 is inserted downward from the crossbar 1, it can continue to be inserted into the positioning hole on the first diagonal brace 6. During use, the user only needs to operate one positioning pin 10 to simultaneously control the counterweight sliders on the crossbar 1 and the first diagonal brace 6.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A hoisting tool, characterized in that, include: The main frame has two or more first lifting lugs symmetrically arranged at the upper end, and several first counterweight sliders are slidably arranged on the horizontal crossbar at the lower end. Several positioning holes are provided on the crossbar. The first fixed counterweight is fixed to the first end on the lower side of the main frame; The second lifting lug is fixedly installed at the second end on the lower side of the main frame; The first diagonal brace has one end connected to the middle of the crossbar and the other end inclined downward and connected to the second lug. The first diagonal brace is provided with several positioning holes. The second counterweight slider is slidably mounted on the first diagonal brace; A positioning pin is inserted into the positioning hole.

2. The hoisting tool as described in claim 1, characterized in that, The main frame is an isosceles triangular frame, with two first lifting lugs symmetrically arranged at the waist.

3. The hoisting tool as described in claim 1, characterized in that, A second fixed counterweight is also provided between the second lifting lug and the second end of the main frame, and the weight of the second fixed counterweight is less than the weight of the first fixed counterweight.

4. The hoisting tool as described in claim 3, characterized in that, A second diagonal brace is provided between the lower end of the first fixed counterweight and the middle part of the crossbar.

5. The hoisting tool as described in claim 4, characterized in that, The second diagonal brace is symmetrically arranged with respect to the first diagonal brace.

6. The hoisting tool as described in claim 3, characterized in that, The first fixed counterweight and the second fixed counterweight are several steel pipes or steel rods.

7. The hoisting tool as described in claim 1, characterized in that, The crossbar, the first diagonal brace, and the second diagonal brace are made of steel pipes.

8. The hoisting tool as described in claim 7, characterized in that, The first and second counterweight sliders are made of steel plates.

9. The hoisting tool as described in claim 1, characterized in that, The left and right sides of the crossbar are respectively equipped with a plurality of the first counterweight sliders.

10. The hoisting tool as described in claim 1, characterized in that, The positioning holes on the first diagonal brace and the positioning holes on the crossbar are arranged vertically opposite each other.

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