Counterweight leveling and lifting device suitable for lifting operation of curtain wall under cornice

Abstract

The utility model discloses a counterweight leveling hoisting device suitable for hoisting operation of a curtain wall under a cornice, which belongs to the technical field of hoisting and comprises a balance beam, a hoisting end and a counterweight end, the hoisting end and the counterweight end are arranged on the balance beam, the hoisting end is connected with a hoisting piece, and the counterweight end is provided with a counterweight adjusting mechanism for counterweight leveling. The balance weight adjusting mechanism comprises a balance weight module connected to the balance beam in a sliding mode and a traction mechanism which is connected with the balance weight module and drives the balance weight module to move along the balance beam to conduct torque adjustment. The traction mechanism comprises a bidirectional locking counterweight winch arranged on the balance beam, a fixed pulley and a counterweight traction steel rope wound between the bidirectional locking counterweight winch and the fixed pulley; the counter weight traction steel rope drives the counter weight module to move left and right along the balance beam by controlling the bidirectional locking counter weight capstan to rotate forwards and backwards to adjust the torque so as to realize balanced hoisting. The counterweight leveling and lifting device provided by the utility model is suitable for the lifting operation of the irregular roof cornice lower curtain wall, and has the advantages of simple structure, low manufacturing cost, convenience in manufacturing and the like.

Description

Technical Field

[0001] This utility model relates to the field of engineering technology, specifically to a counterweight leveling and lifting device suitable for curtain wall hoisting operations under eaves. Background Technology

[0002] Current curtain wall glass installation primarily utilizes a combination of lifting equipment and electronic glass suction cups, or electronic glass suction cup trolleys, which are common installation methods on construction sites. However, due to the diverse designs of modern buildings, curtain walls under eaves, especially those with high ceilings or irregularly shaped roofs, often cannot be directly lifted and installed using suspended platforms or cranes due to the roof's design and materials. While electronic glass suction cup trolleys are commonly used for these types of curtain walls and are convenient for urban projects, they are less suitable for projects with challenging construction conditions, remote locations, smaller glass curtain wall volumes, and relatively small glass sizes and weights, such as highway service area construction projects. In such cases, the cost of transporting and renting electronic glass suction cup trolleys to the site becomes prohibitively high. Therefore, an on-site installation method that is both easy to install and readily available is urgently needed to address the issues of conventional lifting equipment being unable to directly lift the glass and the inconvenience of deploying electronic glass suction cup trolleys for installation under these conditions.

[0003] A Chinese invention patent with publication number CN118954258A discloses an intelligent leveling and counterweight lifting frame for hoisting components into an eaves structure. Its technical solution includes: a base boom; a counterweight end fixedly connected to the base boom; a lifting end, including a first lifting arm fixedly connected to the base boom and located on the side of the base boom away from the counterweight end; and an upper support fixedly connected to the first lifting arm and located on the side of the first lifting arm away from the counterweight end. While this patent can achieve the hoisting of components into a horizontal eaves structure, its structural design is relatively complex and its cost is high. Therefore, this solution proposes a counterweight leveling and lifting device suitable for curtain wall hoisting operations under eaves, which has a relatively simple structure, low cost, and is easy to manufacture. Utility Model Content

[0004] In view of the problems of complex structural design and high cost of existing equipment for hoisting components to eaves structures, this utility model proposes a counterweight leveling and hoisting device suitable for curtain wall hoisting operations under eaves, which has the advantages of relatively simple structure, low cost and easy manufacturing.

[0005] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows:

[0006] A counterweight leveling and lifting device suitable for curtain wall hoisting operations under eaves includes a balance beam and a lifting end and a counterweight end set on the balance beam. The lifting end is connected to the hoisting component, and the counterweight end is equipped with a counterweight adjustment mechanism for counterweight leveling. The counterweight adjustment mechanism includes a counterweight module slidably connected to the balance beam and a traction mechanism connected to the counterweight module and driving it to move along the balance beam for torque adjustment. The traction mechanism includes a bidirectional locking counterweight winch, a fixed pulley, and a counterweight traction steel rope wound between the bidirectional locking counterweight winch and the fixed pulley. By controlling the forward and reverse rotation of the bidirectional locking counterweight winch, the counterweight traction steel rope drives the counterweight module to move left and right along the balance beam for torque adjustment, achieving balanced lifting.

[0007] Furthermore, the balance beam is an H-shaped steel beam with limit plates at both ends along its length.

[0008] Furthermore, the top of the H-beam is provided with a steel rectangular tube hanger that is adjustable in position along its length. The steel rectangular tube hanger is provided with a bottom connecting plate. The bottom connecting plate is fitted with equally spaced bolt holes on the upper flange of the H-beam and is connected and fixed with M20-10.9S grade high-strength bolts.

[0009] Furthermore, the counterweight module includes a counterweight bracket and a counterweight steel plate mounted on the counterweight bracket, and the counterweight bracket is provided with counterweight steel plate fixing measures.

[0010] Furthermore, the counterweight support has a symmetrical structure, with two rectangular frames formed on the left and right sides of the web of the hot-rolled H-beam on its upper part, and its lower part spanning the left and right sides of the web of the hot-rolled H-beam and connecting with the two rectangular frames.

[0011] Furthermore, the counterweight steel plates are stacked layer by layer in the rectangular frame and clamped and positioned by the cooperation of angle steel and locking bolts.

[0012] Furthermore, the bottom of the rectangular frame is provided with a traveling pulley, which is symmetrically arranged on both sides of the web of the hot-rolled H-beam; the top surface of the lower flange of the hot-rolled H-beam is provided with a counterweight translation track that cooperates with the traveling pulley.

[0013] Furthermore, a counterweight traction rail is provided at the bottom of the lower flange of the H-shaped steel beam, and a connecting plate is provided at the bottom of the counterweight support; the connecting plate extends into the counterweight traction rail from the bottom, and has hanging rail pulleys that match the counterweight traction rail on both sides.

[0014] Furthermore, ground support frames are provided at both ends of the lower part of the balance beam, and a guy rope connecting plate is provided on the ground support frame on the side of the balance beam away from the lifting end.

[0015] Furthermore, the lifting end includes a fixing plate disposed at one end of the balance beam, and the fixing plate is connected to the lifting lug of the electronic suction cup.

[0016] The workflow of this utility model is as follows:

[0017] First, after selecting the specifications of the electronic suction cup for the glass, lift the device about 20cm off the ground, and use a two-way locking counterweight winch to pull the counterweight steel plate to the balance position of the lifting device, and mark the position of the counterweight when unloaded and balanced.

[0018] Then, before the electronic suction cup picks up the glass, use a two-way locking counterweight winch to pull the counterweight steel plate to the farthest end of the device, i.e., the point with the greatest torque. Slowly lift it about 20cm off the ground and use the two-way locking counterweight winch to pull the counterweight steel plate to the point where the lifting device is balanced before lifting it, i.e., lifting under load balance. At this time, the guy rope connection plate at the ground support frame should be pulled by the operators in two directions on the ground to prevent the lifting device from swinging too much horizontally.

[0019] Finally, after the glass is hoisted to the installation location and fixed, the counterweight steel plate is pulled to the balance position of the first step when it is unloaded using a two-way locking counterweight winch; after the electronic suction cup is detached from the glass, the lifting device lifts it to the ground, thus completing the installation of the curtain wall glass.

[0020] In summary, this utility model has the following advantages:

[0021] (1) The counterweight leveling and lifting device proposed in this utility model uses the principle of torque balance to lift the lifting components from the horizontal direction to the installation position under the eaves. It is especially suitable for the lifting operation of curtain walls under the eaves of irregular roofs. It has the advantages of simple structure, low cost and easy manufacturing.

[0022] (2) In this utility model, a steel rectangular tube hanger is provided at the top of the balance beam, and its position is adjustable along its length. By adjusting the position of the steel rectangular tube hanger on the balance beam, the distance between the lifting point and the lifting end can be adjusted to adapt to operations with different eave depths;

[0023] (3) In this utility model, the traction mechanism is composed of a two-way locking counterweight winch, a fixed pulley, and a counterweight traction steel rope, which has the advantages of convenient adjustment, low cost, and low installation difficulty.

[0024] (4) In this utility model, the balance beam is made of hot-rolled H-beam, which is low in cost, easy to manufacture and easy to obtain. Based on the structural characteristics of the H-beam itself, the structure of the counterweight support is designed, and the counterweight translation track and the counterweight traction track are set respectively, so that the upper and lower parts of the counterweight module move along the two tracks respectively, and the overall adjustment is smoother and more stable.

[0025] (5) In this utility model, ground support frames are provided at both ends of the balance beam to support the posture of the glass on the ground before and after hoisting; a guy rope connecting plate is provided on the ground support frame on the side of the balance beam away from the lifting end, so that ground personnel can control the swing of the hoisting device by connecting it with the guy rope during the process of hoisting the curtain wall glass away from the ground. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the hoisting equipment of this utility model;

[0027] Figure 2 This is a front view of the hoisting equipment of this utility model;

[0028] Figure 3 for Figure 2 The left view;

[0029] Figure 4 for Figure 2 The right view;

[0030] Figure 5 for Figure 2 AA section view;

[0031] Figure 6 for Figure 2 BB section view;

[0032] Figure 7 This is a bottom view of the counterweight module;

[0033] Figure 8 This is an isometric view of a steel rectangular tube hanger.

[0034] Figure 9 This is a schematic diagram of the balance of the counterweight system when unloaded.

[0035] Figure 10 This is a schematic diagram of the balance of the counterweight system during the lifting process;

[0036] Figure 11 A schematic diagram of the balance of the counterweight system after the hoisted component reaches the installation location;

[0037] In the picture:

[0038] 1. H-beam, 2. Steel rectangular tube hanger, 3. Counterweight traction rail, 4. Counterweight translation rail, 5. Counterweight steel plate, 6. Counterweight bracket, 7. Limiting plate, 8. Counterweight translation rail limiting plate, 9. Counterweight traction rail limiting plate, 10. Fixed pulley, 11. Two-way locking counterweight winch, 12. Fixing plate, 13. Ground support frame, 14. Guy rope connecting plate, 15. Counterweight traction steel rope, 16. Electronic glass suction cup, 17. Guy rope, 18. Glass, 19. Glass curtain wall keel, 20. Roof eaves. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Example 1

[0045] This utility model proposes a counterweight leveling and lifting device suitable for curtain wall hoisting operations under eaves. This device is particularly suitable for projects where conventional lifting equipment cannot directly hoist under eaves (such as steel structure roof eaves that are 20 meters high and irregularly shaped, where the roof material is insufficient to install the hoisting basket), projects that are remote and have a small workload, and projects where the size and weight of the components are not particularly large, as well as projects where the cost of renting an electronic suction cup vehicle to transport the components to the site is too high. It has the advantages of low cost, relatively simple structure, and easy manufacturing.

[0046] like Figures 1 to 4 As shown, the counterweight leveling and lifting equipment proposed in this scheme includes a balance beam, a lifting end connected to the lifting component at one end of the balance beam, and a counterweight end at the other end of the balance beam for counterweight leveling through a counterweight adjustment mechanism.

[0047] In this scheme, the counterweight adjustment mechanism includes a counterweight module slidably connected to the balance beam and a traction mechanism connected to the counterweight module and driving it to move along the balance beam to adjust the torque.

[0048] Specifically, in this solution, the traction mechanism includes a bidirectional locking counterweight winch 11, a fixed pulley 10, and a counterweight traction steel rope 15. The bidirectional locking counterweight winch 11 and the fixed pulley 10 are respectively fixed to the balance beam. The counterweight traction steel rope 15 is wound between the bidirectional locking counterweight winch 11 and the fixed pulley 10, and is simultaneously connected and fixed to the counterweight module. By controlling the forward and reverse rotation of the bidirectional locking counterweight winch 11, the counterweight traction steel rope 15 can drive the counterweight module to move left and right along the balance beam to adjust the torque, thereby balancing the entire system before lifting. It should be noted that the bidirectional locking counterweight winch 11 in this solution has a built-in motor and can receive electrical signal commands for automatic leveling.

[0049] Taking the hoisting of curtain wall glass 18 as an example, the lifting end in this solution includes a fixing plate 12 located at one end of the balance beam that can be connected to the lifting lug of the electronic glass suction cup 16. The electronic glass suction cup 16 can vertically adhere and fix the glass 18. When selecting an electronic suction cup, it can be chosen according to the size and weight of the glass. For glass panels with a large height-to-width ratio, a rotatable type should be selected.

[0050] The counterweight leveling and lifting device proposed in this solution utilizes the principle of torque balance to lift the components horizontally to the installation position under the eaves. It is especially suitable for lifting operations under the eaves of irregular roofs. It has the advantages of simple structure, low cost and convenient manufacturing.

[0051] Example 2

[0052] The counterweight leveling and lifting device proposed in this embodiment, suitable for curtain wall hoisting operations under eaves, differs from Embodiment 1 in the following ways:

[0053] A rectangular steel tube hanger 2, whose position is adjustable along its length, is installed at the top of the balance beam. By adjusting the position of the rectangular steel tube hanger 2 on the balance beam, the distance between the lifting point and the lifting end can be adjusted to accommodate operations with different eave depths. The left and right adjustment of the rectangular steel tube hanger 2 is mainly determined by the width of the eaves, and is also related to the torque generated by the counterweight and the weight of the curtain wall glass 18 being lifted.

[0054] Preferably, the steel rectangular tube lifting rod 2 and its connection point are located at about 1 / 3 of the distance from the lifting end of the balance beam, leaving enough lever arm to facilitate torque balance.

[0055] In this embodiment, the balance beam is preferably a hot-rolled H-beam 1 made by welding, which is low in cost and easy to manufacture. The hot-rolled H-beam 1 and the steel rectangular tube hanger 2 form the main load-bearing structure.

[0056] Furthermore, limit plates 7 are provided at both ends of the hot-rolled H-beam 1 along its length. The main function of the limit plates 7 near the counterweight end is to limit the counterweight module and prevent it from detaching from the balance beam.

[0057] More specifically, in this embodiment, the upper flange of the hot-rolled H-beam 1 is provided with equally spaced bolt holes along its length for adjusting the connection position of the rectangular tube hanger 2. Correspondingly, the rectangular tube hanger 2 is provided with a bottom connecting plate, the bolt holes of which are drilled at equal intervals with the upper flange of the hot-rolled H-beam 1. Preferably, the hot-rolled H-beam 1 and the rectangular tube hanger 2 are connected using M20-10.9S grade high-strength bolts. More preferably, such as Figure 8 As shown, the top of the steel rectangular tube hanger 2 is equipped with a lifting lug connecting plate, which has reinforcing rings on both sides.

[0058] Example 3

[0059] Based on the above embodiment 2, this embodiment proposes a counterweight leveling and lifting device suitable for curtain wall hoisting operations under eaves, and further describes the structure of the counterweight module in detail.

[0060] In this embodiment, the counterweight module includes a counterweight bracket 6 and a counterweight steel plate 5 mounted on the counterweight bracket 6. The counterweight bracket 6 is provided with measures to fix the counterweight steel plate 5. Specifically, the counterweight bracket 6 is as follows: Figure 5 The symmetrical structure shown has two rectangular frames formed on the left and right sides of the web of the hot-rolled H-beam 1 on the upper part of the counterweight support 6, and the lower part of the counterweight support 6 spans across the left and right sides of the web of the hot-rolled H-beam 1 and is connected to the two rectangular frames.

[0061] like Figures 5 to 7As shown, in this embodiment, counterweight steel plates 5 are stacked layer by layer in the rectangular frame and clamped and positioned by angle steel and locking bolts. A traveling pulley is provided at the bottom of the rectangular frame, symmetrically arranged on both sides of the web of the hot-rolled H-beam 1. Correspondingly, a counterweight translation track 4 is provided on the top surface of the lower flange of the hot-rolled H-beam 1, which cooperates with the traveling pulley. The traveling pulley moves in the counterweight translation track 4, generating different torques, thereby enabling the counterweight to lift components of different weights.

[0062] Furthermore, a counterweight traction rail 3 is provided at the bottom of the lower flange of the hot-rolled H-beam 1, and a connecting plate is provided at the bottom of the counterweight support 6. The connecting plate extends into the counterweight traction rail 3 from the bottom, and its two sides are provided with hanging rail pulleys that match the counterweight traction rail 3.

[0063] In this embodiment, the connecting plate of the counterweight bracket 6 is provided with a connecting hole to connect with the counterweight traction steel rope 15 in the traction mechanism. The fixed pulley 10 and the bidirectional locking counterweight winch 11 in the traction mechanism are fixedly installed below the hot-rolled H-beam 1 at the same horizontal height as the counterweight traction steel rope 15, wherein the fixed pulley 10 is located on the side closer to the counterweight end, and the bidirectional locking counterweight winch 11 is located on the side closer to the lifting end. By controlling the forward and reverse rotation of the bidirectional locking counterweight winch 11, the counterweight module as a whole can be driven to move left and right along the counterweight traction track 3 to provide counterweight, so that the entire lifting device is balanced before lifting the load.

[0064] Furthermore, limit plates are installed on both the counterweight translation track 4 and the counterweight traction track 3 to control the extreme adjustment positions of the counterweight module, such as... Figure 1 and Figure 2 The counterweight translation track limiting plate 8 and the counterweight traction track limiting plate 9 are shown in the figure.

[0065] Example 4

[0066] Based on any of the above embodiments, the counterweight leveling and lifting device for curtain wall hoisting operations under eaves provided in this embodiment differs from the others in the following ways:

[0067] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, ground support frames 13 are provided at both ends of the lower part of the balance beam to support the posture of the glass 18 on the ground before and after hoisting. A guy rope connecting plate 14 is provided on the ground support frame 13 on the side of the balance beam away from the lifting end, so that ground personnel can control the swing of the hoisting device by connecting it with the guy rope 17 during the process of hoisting the curtain wall glass 18 away from the ground.

[0068] In this implementation plan, the position adjustment of the counterweight steel plate 5 involves two steps: first, its position under no-load conditions (including the weight of the electronic glass suction cup 16); and second, its position under load. Taking the installation of the curtain wall glass 18 as an example, the lifting operation procedure using this counterweight leveling and lifting device is as follows:

[0069] First, after selecting the electronic suction cup of the specified size for glass 18, lift the device approximately 20cm off the ground. Then, use the two-way locking counterweight winch 11 to pull the counterweight steel plate 5 to the balanced position of the lifting device. Mark the counterweight position when unloaded and balanced. Figure 1 As shown; this method mainly involves lifting the curtain wall glass 18 to the ground in a balanced state after the lifting device has been installed and unloaded.

[0070] Then, before the electronic suction cup picks up the glass 18, the counterweight steel plate 5 is pulled to the farthest end of the device, i.e., the point of greatest torque, using the two-way locking counterweight winch 11. It is then slowly lifted about 20cm off the ground, and the counterweight steel plate 5 is pulled to the point where the lifting device is balanced before lifting. This is lifting under balanced load conditions. Figure 2 As shown; at this time, the guy rope connecting plate 14 at the ground support frame 13 should be pulled by the operators in two directions on the ground to prevent the lifting device from swinging too much horizontally;

[0071] Finally, after the glass 18 is hoisted to the installation location and fixed, the counterweight steel plate 5 is pulled to the balance position of the first unloaded stage using the two-way locking counterweight winch 11, as shown. Figure 3 As shown; after the electronic suction cup detaches from the glass 18, the lifting device lifts it to the ground, thus completing the installation of the curtain wall glass 18.

Claims

1. A counterweight leveling and lifting device suitable for curtain wall hoisting operations under eaves, comprising a balance beam and a lifting end and a counterweight end disposed on the balance beam, wherein the lifting end is connected to the hoisting component, and the counterweight end is provided with a counterweight adjustment mechanism for counterweight leveling, characterized in that, The counterweight adjustment mechanism includes a counterweight module slidably connected to the balance beam and a traction mechanism connected to the counterweight module and driving it to move along the balance beam for torque adjustment; the traction mechanism includes a bidirectional locking counterweight winch (11), a fixed pulley (10) and a counterweight traction steel rope (15) wound between the bidirectional locking counterweight winch (11) and the fixed pulley (10) on the balance beam; by controlling the bidirectional locking counterweight winch (11) to rotate forward and backward, the counterweight traction steel rope (15) drives the counterweight module to move left and right along the balance beam for torque adjustment to achieve balanced lifting.

2. The counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 1, characterized in that, The balance beam is an H-shaped steel beam (1), with limit plates (7) at both ends along its length.

3. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 2, characterized in that, The top of the H-beam (1) is provided with a steel rectangular tube hanger (2) whose position is adjustable along its length. The steel rectangular tube hanger (2) is provided with a bottom connecting plate. The bottom connecting plate is connected to the upper flange of the H-beam (1) with equally spaced bolt holes and is fixed by M20-10.9S grade high-strength bolts.

4. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in any one of claims 1 to 3, characterized in that, The counterweight module includes a counterweight bracket (6) and a counterweight steel plate (5) mounted on the counterweight bracket (6), and the counterweight bracket (6) is provided with a counterweight steel plate (5) fixing measure.

5. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 4, characterized in that, The counterweight support (6) is a symmetrical structure. Its upper part forms two rectangular frames on the left and right sides of the web of the hot-rolled H-beam (1), and its lower part spans the left and right sides of the web of the hot-rolled H-beam (1) and is connected to the two rectangular frames.

6. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 5, characterized in that, The counterweight steel plates (5) are stacked layer by layer in the rectangular frame and are pressed and positioned by the cooperation of angle steel and locking bolts.

7. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 5, characterized in that, The bottom of the rectangular frame is provided with a traveling pulley, which is arranged symmetrically on both sides of the web of the hot-rolled H-beam (1); the top surface of the lower flange of the hot-rolled H-beam (1) is provided with a counterweight translation track (4) that cooperates with the traveling pulley.

8. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 5, characterized in that, The bottom of the lower flange of the H-shaped steel beam (1) is also provided with a counterweight traction rail (3), and the lower part of the counterweight bracket (6) is provided with a connecting plate; the connecting plate extends into the interior of the counterweight traction rail (3) from the bottom, and its two sides are provided with hanging rail pulleys that match the counterweight traction rail (3).

9. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 1, characterized in that, The balance beam is provided with ground support frames (13) at both ends below, and a guy rope connecting plate (14) is provided on the ground support frame (13) on the side of the balance beam away from the lifting end.

10. A counterweight leveling and lifting device for curtain wall hoisting operations under eaves as described in claim 1, characterized in that, The lifting end includes a fixing plate (12) set at one end of the balance beam, and the fixing plate (12) is connected to the lifting lug of the electronic suction cup.

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