A scalable universal lifting tool

Abstract

This invention discloses a scalable and universal hoisting fixture. It adopts a modular design, with the main beam of the main frame as the core. The size can be expanded through flexible connections of extended beams. It can be freely assembled according to the size of the components being hoisted, and adjustable struts ensure structural stability. This adapts to the hoisting needs of various shapes and sizes of components in the antenna frame, exhibiting high versatility. A single set of hoisting fixtures can be used to hoist all components of the antenna frame, significantly reducing manufacturing costs and the complexity of fixture management. It also reduces confusion among construction personnel due to the variety of fixtures, lowers the risk of operational errors, and improves construction quality and safety. Furthermore, it reduces the frequency of on-site fixture changes, increasing overall erection efficiency. In summary, this invention, through its scalable and universal design, effectively solves the problems of diverse, inefficient, and costly fixtures in antenna frame hoisting, achieving economical, efficient, and safe on-site erection.

Description

Technical Field

[0001] This invention belongs to the field of radar antenna installation technology, and relates to a hoisting fixture, specifically an expandable universal hoisting fixture. Background Technology

[0002] The antenna frame is a crucial component of radar, used to mount the antenna elements and radiate microwave signals. For example, a high-altitude antenna frame is mentioned in patent application CN119994438A. Figure 9 As shown, the antenna frame is mainly composed of cylindrical columns, central truss, horizontal truss, and inclined supports. The size of each component ranges from 2 meters to 16 meters, and the weight ranges from 0.8 tons to 10 tons. The components have both slender truss forms and cylindrical structures. The inclined supports also have requirements for the installation angle. On the installation site, each component needs to be hoisted to the corresponding position and tightened, which is quite difficult.

[0003] Therefore, the design of hoisting fixtures for each component is an urgent problem to be solved. If a hoisting fixture is designed for each component, it will not only increase the manufacturing cost, but also reduce the erection efficiency and increase the operating cost of the crane due to the frequent replacement of hoisting fixtures during hoisting. In addition, too many types of fixtures will make it difficult for construction personnel to distinguish the correspondence between hoisting fixtures and parts, increasing the difficulty of construction. Summary of the Invention

[0004] To address the technical problems existing in the background art, this invention proposes a scalable and universal hoisting fixture. Through its scalable and universal design, it effectively solves the problems of diverse fixtures, low efficiency, and high cost in antenna frame hoisting, and achieves economical, efficient, and safe on-site erection.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] An expandable universal lifting fixture includes: a main frame, hooks, extension beams, connecting pins, and lifting tools. Multiple main beams extend radially from the periphery of the main frame. Hooks are connected to the middle of the main frame to connect the main frame to lifting equipment. Several extension beams are provided. The first end of the extension beam is adapted to the end of the main beam, and the second end of the extension beam is adapted to the first end. The first end of the extension beam is detachably connected to the end of any main beam or to the second end of an adjacent extension beam by connecting pins. The lifting tools are detachably installed at the end of the main beam or the second end of the extension beam.

[0007] Furthermore, the end of the main beam is provided with a first single-sided support lug, and a first pin hole is opened on the first single-sided support lug. The first end of the extended beam is provided with a double-sided support lug, and a second pin hole is opened on the double-sided support lug. The second end of the extended beam is provided with a second single-sided support lug, and a third pin hole is opened on the second single-sided support lug. The first single-sided support lug and the second single-sided support lug can be adapted to be connected to the double-sided support lug. The first pin hole, the second pin hole, and the third pin hole are all adapted to be connected to the connecting pin.

[0008] Furthermore, it also includes several adjustable-length struts, which connect a main beam to an extension beam, or connect two extension beams.

[0009] Furthermore, a first support is provided on both sides of the main beam, and multiple second supports are provided at equal intervals on both sides of the extended beam. Both the first and second supports can be adapted to be connected to the two ends of the strut.

[0010] Furthermore, the strut includes: a first rod body and a second rod body. One end of the first rod body is provided with a first external thread section, and the other end is vertically connected to a first insert rod. One end of the second rod body is provided with a first internal thread section that matches the first external thread section, and the other end is vertically connected to a second insert rod.

[0011] Furthermore, the first support has a first insertion hole adapted to the first insertion rod / second insertion rod, the second support has a second insertion hole adapted to the second insertion rod / first insertion rod, and the ends of the first insertion rod and the second insertion rod both have through holes for installing cotter pins.

[0012] Furthermore, the strut also includes several third rods, which are connected between the first rod and the second rod. One end of the third rod is provided with a second internal thread section that is adapted to the first external thread section, and the other end is provided with a second external thread section that is adapted to the first internal thread section.

[0013] Furthermore, the first, second, and third rods each have a round hole in the middle that is compatible with an internal hex wrench.

[0014] Furthermore, the lifting equipment includes: shackles, chains, and hooks. The shackles are installed at the end of the main beam or the second end of the extended beam. One end of the chain is connected to the shackles, and the other end is connected to the hooks.

[0015] The beneficial effects of this invention are as follows: The scalable and universal hoisting fixture provided in this application adopts a modular design, with the main beam of the main frame as the core. The size can be expanded through flexible connections of extended beams. It can be freely assembled according to the size of the hoisted component, and with the help of adjustable struts to ensure structural stability, it can adapt to the hoisting needs of various shapes and sizes of components in the antenna frame. It has high versatility; a single set of hoisting fixtures can be used to hoist all components of the antenna frame, significantly reducing manufacturing costs and the complexity of fixture management. It reduces confusion among construction personnel due to the variety of fixtures, lowers the risk of operational errors, and improves construction quality and safety. At the same time, it reduces the frequency of on-site fixture changes and improves overall erection efficiency. In summary, this invention, through its scalable and universal design, effectively solves the problems of diverse, inefficient, and costly fixtures in antenna frame hoisting, achieving economical, efficient, and safe on-site erection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the main framework of the present invention.

[0018] Figure 3 This is a schematic diagram of the extended beam of the present invention.

[0019] Figure 4 This is a schematic diagram of the strut of the present invention.

[0020] Figure 5 This is a schematic diagram of the first rod of the present invention.

[0021] Figure 6 This is a schematic diagram of the second rod of the present invention.

[0022] Figure 7 This is a schematic diagram of the third rod of the present invention.

[0023] Figure 8 This is a schematic diagram of the lifting device of the present invention.

[0024] Figure 9 This is a schematic diagram of the ultra-high antenna frame.

[0025] Figure 10 This is a schematic diagram of the unextended state of the present invention.

[0026] Figure 11 for Figure 10 A schematic diagram of hoisting a cylindrical column in its unexpanded state.

[0027] Figure 12 This is a schematic diagram of an extended state of the present invention.

[0028] Figure 13 for Figure 12 A schematic diagram of the inclined support being hoisted in the extended state of the intermediate tooling. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figure 1 As shown, the present invention provides an expandable universal lifting fixture, including: a main frame 1, a hook 2, an extension beam 3, a connecting pin 4, a lifting device 5, and a support rod 6. The main frame 1 has four main beams 11 extending radially from its periphery. The four main beams 11 are of equal length and intersect perpendicularly to form a cross beam. The hook 2 is connected to the geometric center of the main frame 1 to connect the main frame 1 to the lifting equipment.

[0031] Several extension beams 3 are provided, and the number of extension beams 3 can be selected according to the specific expansion form of the hoisting fixture, with a minimum of 0. The first end of the extension beam 3 is adapted to the end of the main beam 11, so that the extension beam 3 can be installed at any end of the main beam 11 to achieve expansion. The second end of the extension beam 3 is adapted to the first end, so that the extension beam 3 can be installed at the second end of any extension beam 3 to achieve further expansion. In the actual installation of the antenna array, it can be freely assembled according to the shape and size of the components to be hoisted, so as to match the hoisting requirements of each component. A set of hoisting fixtures can be used to hoist all components of the entire array, saving manufacturing costs, reducing construction difficulty, and improving on-site erection efficiency.

[0032] like Figure 2 As shown, the end of the main beam 11 is provided with a first single-sided support lug 12, and a first pin hole 13 is opened on the first single-sided support lug 12. Figure 3 As shown, the first end of the extended beam 3 is provided with a double-sided support lug 31, and a second pin hole 32 is opened on the double-sided support lug 31. The second end of the extended beam 3 is provided with a second single-sided support lug 33, and a third pin hole 34 is opened on the second single-sided support lug 33. The first single-sided support lug 12 and the second single-sided support lug 33 can be adapted to be connected to the double-sided support lug 31 to realize the connection between the extended beam 3 and the main beam 1 or between two extended beams 3.

[0033] The first end of the extended beam 3 is detachably connected to the end of any main beam 11 or to the second end of an adjacent extended beam 3 via a connecting pin 4. The first pin hole 13, the second pin hole 32, and the third pin hole 34 are all compatible with the connecting pin 4. Specifically, the connecting pin 4 consists of an external hexagonal bolt and a nut. In use, the external hexagonal bolt is inserted into the first pin hole 13 / second pin hole 32 / third pin hole 34 and the nut is tightened, which serves the connection function while preventing the connecting pin 4 from moving.

[0034] The strut 6 is used to connect the extended beam 3 and the main beam 11 to prevent the extended beam 3 from rotating along the connecting pin 4, thus fixing the extended beam 3. The length of the strut 6 is adjustable, allowing it to be connected between any main beam 11 and an extended beam 3, or between any two extended beams 3. Specifically, each side of the main beam 11 has a first support 14, and each side of the extended beam 3 has multiple second supports 35 at equal intervals. Both the first supports 14 and the second supports 35 can be fitted to the ends of the strut 6. The lifting fixture typically has several struts 6 of different lengths, and the number of struts 6 can be selected according to the specific expansion form of the lifting fixture, with a minimum of zero.

[0035] like Figure 4 As shown, the strut 6 includes a first strut 61, a second strut 62, and a third strut 63. The first strut 61, the second strut 62, and the third strut 63 are coaxially arranged tubular structures with the same diameter. Several third struts 63 can be arranged between the first strut 61 and the second strut 62. The number of third struts 63 can be determined according to the length of the strut 6, and can be as small as zero.

[0036] like Figure 5 As shown, one end of the first rod body 61 is provided with a first external thread section 611, and the other end is vertically connected to a first insert rod 612. Figure 6 As shown, one end of the second rod 62 is provided with a first internal thread section 621 that is adapted to the first external thread section 611, and the other end is vertically connected to a second insert rod 622. The first rod 61 can be connected to the first internal thread section 621 of the second rod 62 through the adaptation of the first external thread section 611. The first insert rod 612 and the second insert rod 622 are the same size.

[0037] The first support 14 has a first insertion hole 15 that matches the first insertion rod 612 / second insertion rod 622. The first rod 61 / second rod 622 can be connected to the main beam 11 by inserting the first insertion rod 612 / second insertion rod 622 into the first insertion hole 15. The second support 35 has a second insertion hole 36 that matches the second insertion rod 622 / first insertion rod 612. The second rod 622 / first insertion rod 612 can be connected to the extension beam 3 by inserting the second insertion rod 622 / first insertion rod 612 into the second insertion hole 36. The first insertion hole 15 and the second insertion hole 36 are of the same size. Both the first insertion rod 612 and the second insertion rod 622 have through holes at their ends for installing cotter pins to prevent the support rod 3 from shifting.

[0038] like Figure 7 As shown, one end of the third rod 63 has a second internal thread section 631 that matches the first external thread section 611, and the other end has a second external thread section 632 that matches the first internal thread section 621. Multiple third rods 63 can be sequentially connected between the first rod 61 and the second rod 62 via threaded connections. The first rod 61, the second rod 62, and the third rod 63 all have round holes in their middle sections that fit an Allen wrench. In use, the Allen wrench can be inserted into the round holes of the first rod 61 / second rod 62 / third rod 63 to tighten them.

[0039] The lifting device 5 can be detachably installed at the end of the main beam 11 (without extended installation) or the second end of the extended beam 3. Several lifting devices 5 are provided; the number of lifting devices 5 can be selected according to the specific application scenario of the lifting equipment, with a minimum of one. For example... Figure 8 As shown, the lifting device 5 includes a shackle 51, a chain 52, and a hook 53. The shackle 51 is installed at the end of the main beam 11 or the second end of the extension beam 3. Specifically, the shackle 51 can be connected to the main beam 11 or the extension beam 3 through the first pin hole 13 on the first single-sided support 12 or the third pin hole 34 on the second single-sided support 33. One end of the chain 52 is connected to the shackle 51, and the other end is connected to the hook 53.

[0040] The length of the lifting device 5 is adjustable, facilitating the adjustment of the center of gravity of the lifted component during lifting to ensure stable lifting. This is especially beneficial for components requiring angle adjustments, allowing for rapid angle adjustment to match the lifting needs of each component. Specifically, the chain 52 can be composed of multiple chain links connected in series. The length of the lifting device 5 can be manually adjusted by connecting the shackle 51 to different chain links. Alternatively, a winding roller can be installed at the bottom of the shackle 51 to wind the chain 52. The chain 52 can be unwound and retracted by rotating the winding roller via a motor, thus automatically adjusting the length of the lifting device 5.

[0041] like Figure 9As shown below, the method of using the hoisting tool will be specifically explained for the medium-high antenna frame of patent application CN119994438A.

[0042] First, the cylindrical column in the ultra-high antenna frame is the main load-bearing component of the antenna array. It is a multi-segment splicing structure. The outer diameter of the cylindrical column is basically the same as the length of the main beam 11 on the main frame 1. Therefore, when hoisting the cylindrical column, only a system consisting of the main frame 1, hooks 2, and four lifting devices 5 is used. Figure 10 The lifting fixture shown is sufficient; no expansion is needed. For example... Figure 11 As shown, during hoisting, the hook 53 is connected to the four lifting points on the wall of the cylindrical column. Since the cylindrical column is a symmetrical structure, its center of gravity is at the geometric center and the center of gravity. By adjusting the lengths of the four lifting devices 5 to be equal, the column can be lifted smoothly.

[0043] Secondly, the inclined support in the ultra-high antenna frame is a slender truss structure used to connect the cylindrical column and the vibrator support, and it is installed at a certain angle to the horizontal truss. Therefore, before hoisting, the number of extended beams 3 required is determined according to the spacing of the lifting points of the inclined support and the required tilt angle. First, two extended beams 3 are connected to the two opposite main beams 11 through connecting pins 4 to achieve the first step of expansion. Then, on this basis, other extended beams 3 are connected end to end through connecting pins 4 to achieve further expansion. At the same time, struts 3 of different lengths are used to connect the extended beams 3 to each other and to the main beams 11 to prevent the extended beams 3 from rotating around the connecting pins 4. Finally, the lifting device 5 is fixedly installed on the single-sided lug 33 of the outermost extended beam 3, forming a structure as shown in the figure. Figure 12 The lifting fixture extended structure shown is used for lifting. For example... Figure 13 As shown, during lifting, the hooks 53 on the lifting devices 5 on both sides are connected to the lifting points on both sides of the horizontal truss. At the same time, the length of the chain 52 is gradually adjusted to tilt the inclined support to the corresponding angle, and then it can be lifted to the installation location of the horizontal truss.

[0044] The above description only covers two hoisting structures and methods for the two components in the ultra-high antenna frame. The hoisting of the remaining components of the ultra-high antenna frame can be carried out by specifically expanding the hoisting fixtures according to the specific shape and installation requirements of the components.

[0045] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

Claims

1. An expandable universal hoisting tool, characterized in that, The utility model relates to a kind of length-adjustable lifting tool, including: Main frame (1), hook (2), lengthening beam (3), connecting pin (4), lifting tool (5), main frame (1) extends multiple main beams (11) along radial direction on circumference side, hook (2) is connected in the middle part of main frame (1), lengthening beam (3) is provided with several, the first end of lengthening beam (3) and the end of main beam (11) are mutually adapted, the first end of lengthening beam (3) and the end of any main beam (11) between by connecting pin (4) can be detachably connected, the second end of lengthening beam (3) and the first end are mutually adapted, the second end of lengthening beam (3) and the first end between any adjacent lengthening beam (3) by connecting pin (4) can be detachably connected, lifting tool (5) is detachably installed in the end of main beam (11) or the second end of lengthening beam (3), to carry out free assembly to lengthening beam (3) according to the size of component to be lifted, the size expansion of hoisting tool is realized through the flexible connection of lengthening beam (3); The end of main beam (11) is equipped with first single-side lug (12), first pin hole (13) is opened on first single-side lug (12), the first end of lengthening beam (3) is equipped with double-side lug (31), second pin hole (32) is opened on double-side lug (31), the second end of lengthening beam (3) is equipped with second single-side lug (33), third pin hole (34) is opened on second single-side lug (33), first single-side lug (12), second single-side lug (33) can be adapted to butt joint with double-side lug (31), first pin hole (13), second pin hole (32), third pin hole (34) are mutually adapted with connecting pin (4).

2. The lifting tool of claim 1, wherein Still including several length-adjustable struts (6), strut (6) is connected between one main beam (11) and one lengthening beam (3), or connected between two lengthening beams (3).

3. The lifting tool of claim 2, wherein The two sides of main beam (11) are provided with first support (14), and the two sides of lengthening beam (3) are provided with multiple second supports (35) at equal distances, and the two ends of strut (6) can be adapted to butt joint with first support (14) and second support (35).

4. The lifting tool of claim 3, wherein Strut (6) includes: first rod body (61), second rod body (62), one end of first rod body (61) is equipped with first external thread section (611), and the other end is vertically connected with first plug rod (612), one end of second rod body (62) is equipped with first internal thread section (621) adapted with first external thread section (611), and the other end is vertically connected with second plug rod (622).

5. The lifting tool of claim 4, wherein First support (14) is provided with first insertion hole (15) adapted with first plug rod (612) / second plug rod (622), and second support (35) is provided with second insertion hole (36) adapted with second plug rod (622) / first plug rod (612), and the ends of first plug rod (612) and second plug rod (622) are provided with through holes to install split pin.

6. The lifting tool of claim 4, wherein The supporting rod (6) further comprises a plurality of third rod bodies (63) connected between the first rod body (61) and the second rod body (62), one end of the third rod body (63) is provided with a second inner threaded section (631) matched with the first outer threaded section (611), and the other end is provided with a second outer threaded section (632) matched with the first inner threaded section (621).

7. The lifting tool of claim 6, wherein The middle part of each of the first rod body (61), the second rod body (62) and the third rod body (63) is provided with a round hole matched with an inner hexagonal wrench.

8. The lifting tool of claim 1, wherein The lifting tool (5) comprises a shackle (51), a chain (52) and a lifting hook (53), the shackle (51) is installed at the end of the main beam (11) or the second end of the lengthening beam (3), one end of the chain (52) is connected with the shackle (51), and the other end is connected with the lifting hook (53).

Images