Tower crane foundation construction connecting piece hoisting device

By designing the tower crane foundation construction connector lifting device for supporting mechanisms, flip components, extension mechanisms and spreaders, the problem of inconvenience in lifting in the prior art is solved, and the four-sided handling and coverage area of ​​cargo lifting are realized, and the operation flexibility and efficiency are improved.

CN120172281AInactive Publication Date: 2025-06-20LANZHOU CHANGTONG HIGHWAY ENGINEERING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510336535.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2025-06-20
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing tower crane foundation construction connecting parts lifting device is difficult to flexibly adjust the coverage range of the crane, which leads to inconvenient cargo lifting and difficult operation.

Method used

A lifting device for the tower crane foundation construction connections including a support mechanism, a flip assembly, an extension mechanism and a spreader is designed. Through the rotation base of the support mechanism and the jack of the extension mechanism, flexible adjustment of the crane arm and four-sided handling of goods are achieved.

Benefits of technology

The four-sided handling of cargo lifting has been realized, the range of cargo landing points has been expanded, the flexibility and coverage area of ​​the hoisting device have been improved, and the operation difficulty has been reduced.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure HDA0005321900560000011
    Figure HDA0005321900560000011
  • Figure HDA0005321900560000021
    Figure HDA0005321900560000021
  • Figure HDA0005321900560000031
    Figure HDA0005321900560000031
Patent Text Reader

Abstract

The invention provides a tower crane foundation construction connecting piece hoisting device and relates to the technical field of cranes, a hoisting device body comprises a supporting mechanism, an overturning assembly, an extending mechanism and a hoisting tool, a supporting table is installed at one end of the supporting mechanism, a rotating base is installed at the bottom of the supporting table, and a supporting table is welded to the side edge of the supporting table; a fixed guide plate is integrally formed at the tail end of the supporting table, an extension mechanism is inserted into the surface of the fixed guide plate, a movable guide plate is integrally formed at the tail end of the extension mechanism, and an expansion sliding rod is arranged at the bottom of the overturning assembly; according to the connecting piece hoisting device, cargoes can be flexibly carried and conveyed towards the four surfaces of tower crane foundation construction, the cargo falling point range is expanded, the flexibility is higher, the coverage range of the hoisting arm can be synchronously adjusted according to the size of tower crane foundation construction, the cargo hoisting point position coverage area is wider, and the hoisting efficiency is improved. And the span of cargo hoisting and carrying is larger, and the stability is high.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of cranes, and particularly to a hoisting device for tower crane foundation construction connectors. Background Art

[0002] Tower crane foundation construction refers to installing a stable foundation structure for tower crane equipment to ensure the safe and stable operation of the tower crane under various working conditions. Before tower crane foundation construction, the construction team needs to conduct rigorous basic design calculations based on factors such as the model, height, lifting capacity of the tower crane, and the geological conditions of the construction site. This process involves complex mechanical principles and professional engineering knowledge, and then a hoisting device is used to hoist the connectors required for tower crane foundation construction.

[0003] In the prior art, for the hoisting device of tower crane foundation construction connectors, after the goods are lifted by a crane, they are then transported to the surrounding area of the tower crane foundation construction area. However, since the tower crane foundation construction area is always fixed and the tower crane itself is rectangular in structure, and conventional lifting equipment can only adjust the transportation range from one or two sides. If you want to temporarily lift and transport goods to the back area of the tower crane foundation construction, you need to change the installation position of the entire crane. The entire operation process is time-consuming and laborious, and the difficulty is relatively high. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a hoisting device for tower crane foundation construction connectors to solve the problems raised in the above background art. The present invention can flexibly transport goods to the four sides of the tower crane foundation construction, expand the landing range of the goods, have higher flexibility, and can synchronously adjust the coverage range of the boom according to the size of the tower crane foundation construction. Moreover, the hoisting point coverage area of the goods is wider, and the hoisting and handling span of the goods is larger.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: A hoisting device for tower crane foundation construction connectors includes a hoisting device body. The hoisting device body includes a support mechanism, a flipping assembly, an extension mechanism, and a lifting tool. One end of the support mechanism is installed with a support platform, the bottom of the support platform is installed with a rotating base, the side of the support platform is welded with a supporting platform, the end of the supporting platform is integrally formed with a fixed guide plate, the surface of the fixed guide plate is inserted with an extension mechanism, the end of the extension mechanism is integrally formed with a movable guide plate, the bottom of the flipping assembly is provided with an extension slide rod, and both ends of the extension slide rod are respectively inserted into the fixed guide plate and the movable guide plate. The top of the flipping assembly is integrally formed with a boom, the end of the boom is welded with a lifting tool, the bottom end of the boom is screwed with a second motor, the output end of the second motor is installed with a winch, and a hoisting steel cable is wound on the surface of the winch. The hoisting steel cable passes through the inside of the lifting tool.

[0006] Further, the support mechanism includes a support table, a first motor, and a carrier table. An end plate is welded to the surface of the support table. A first motor is screwed to the outside of one of the end plates. A regulating gear is installed inside the end plate. A transmission rod is inserted on the side of the regulating gear. A convex plate is integrally formed on the side of the transmission rod.

[0007] Further, a telescopic channel and a guiding hole are formed on the surface of the fixed guiding plate. The guiding holes are symmetrically arranged on both sides of the telescopic channel. A driving shaft is inserted into the output end of the first motor. A driving gear is key-connected to the surface of the driving shaft.

[0008] Further, the bottoms of the driving gear and the regulating gear are engaged with each other. Limiting baffles are integrally formed on both sides of the regulating gear. A hole is formed in the middle of one of the end plates. The transmission rod passes through the hole on the surface of the end plate.

[0009] Further, the extension mechanism includes a movable guiding plate, a bottom plate, and guiding rods. The bottom plate is integrally formed at the bottom end of the movable guiding plate. Guiding rods are welded to the surface of the movable guiding plate. A jack is screwed to the bottom of the bottom plate.

[0010] Further, a column is welded to the bottom end of the carrier table. A transfer wheel is installed at the bottom of the column. A driving system is built on the side of the transfer wheel, and the driving system is used to control the transfer wheel to rotate around a rotating base.

[0011] Further, the guiding rods respectively pass through the corresponding guiding holes. After the jack extends, it is used to press on the ground, and the movable guiding plate and the fixed guiding plate are aligned with each other.

[0012] Further, the flipping assembly includes a driving plate and a lifting arm. A transmission sleeve is integrally formed at the bottom of the driving plate. A plugging slot is formed inside the transmission sleeve, and the transmission sleeve is sleeved on the transmission rod and the convex plate through the plugging slot. The extension slide rod passes through the inside of the telescopic channel.

[0013] Further, a support disk is integrally formed between the lifting arm and the driving plate. A second motor is screwed to the surface of the support disk. The end of the lifting arm is fixedly connected to a lifting tool through a docking column. The lifting tool includes a lifting plate, a clamping plate, and a hook. The lifting plate is integrally formed at the end of the docking column. The clamping plate is integrally formed at the bottom of the lifting plate.

[0014] Further, front pulleys and rear pulleys are respectively inserted at both inner ends of the clamping plate, and both the front pulley and the rear pulley include two groups of pulley structures. The hoisting steel cables respectively pass through the middle positions of the front pulley and the rear pulley, and a hook is connected to the end of the hoisting steel cable.

[0015] Advantages of the present invention:

[0016] 1. The support mechanism part of the hoisting device for the tower crane foundation construction connecting piece can rotate around the rotating base part at one end of the bottom, and cooperate with the extension mechanism to control the coverage range of the lifting appliance. Therefore, the goods can be flexibly transported to the four sides of the tower crane foundation construction, expanding the goods landing point range, with higher flexibility, and there is no need to change the installation position of the entire hoisting device.

[0017] 2. The hoisting device for the tower crane foundation construction connecting piece can synchronously adjust the coverage range of the jib according to the size of the tower crane foundation construction. At the bottom of the support mechanism, the power system cooperates with the jack at the bottom of the extension mechanism to control the distance between the jib and the tower crane foundation construction, so as to adjust according to the specific size specification of the connecting piece, ensuring that the connecting piece can be transported to any position around the tower crane foundation construction with high mobility.

[0018] 3. The hoisting device for the tower crane foundation construction connecting piece has a wider coverage area for the goods lifting point. Through the gear transmission part inside the support mechanism, the jib can be directly controlled to rotate towards the area away from the tower crane foundation construction, thereby reducing the requirements for the stacking point of the connecting piece. The goods can be hoisted and connected from a position far from the tower crane foundation construction range, so the span of the goods hoisting and handling is larger, reducing the operation difficulty. Description of the drawings

[0019] Figure 1 It is a schematic structural diagram of the external shape of a hoisting device for a tower crane foundation construction connecting piece according to the present invention;

[0020] Figure 2 It is a schematic structural diagram of the support mechanism part of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the extension mechanism part of the present invention;

[0022] Figure 4 It is a structural diagram of the inner side of the end plate of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the jib part of the present invention;

[0024] Figure 6 It is a schematic structural diagram of the lifting appliance part of the present invention;

[0025] Figure 7This is a schematic structural diagram of the flipping component part of the present invention;

[0026] In the figure: 1, support mechanism; 2, flipping component; 3, extension mechanism; 4, sling; 5, rotating base; 6, support table; 7, end plate; 8, supporting table; 9, fixed guide plate; 10, telescopic channel; 11, guide hole; 12, column; 13, transfer wheel; 14, drive system; 15, movable guide plate; 16, bottom plate; 17, jack; 18, guide rod; 19, first motor; 20, drive shaft; 21, drive gear; 22, regulating gear; 23, limit baffle; 24, transmission rod; 25, convex plate; 26, drive plate; 27, second motor; 28, winch; 29, boom; 30, docking column; 31, lifting plate; 32, clamping plate; 33, lifting steel cable; 34, hook; 35, front pulley; 36, rear pulley; 37, support disc; 38, transmission sleeve; 39, extension slide bar; 40, insertion slot. Specific embodiments

[0027] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Please refer to Figures 1 to 7 , the present invention provides the following technical solutions: A hoisting device for a connecting piece in tower crane foundation construction, including a hoisting device body. The hoisting device body includes a support mechanism 1, a flipping component 2, an extension mechanism 3 and a sling 4. One end of the support mechanism 1 is installed with a support table 6. A rotating base 5 is installed at the bottom of the support table 6. A supporting table 8 is welded to the side of the support table 6. A fixed guide plate 9 is integrally formed at the end of the supporting table 8. The extension mechanism 3 is inserted on the surface of the fixed guide plate 9. An movable guide plate 15 is integrally formed at the end of the extension mechanism 3. An extension slide bar 39 is arranged at the bottom of the flipping component 2. Both ends of the extension slide bar 39 are respectively inserted into the fixed guide plate 9 and the movable guide plate 15. A boom 29 is integrally formed at the top of the flipping component 2. A sling 4 is welded to the end of the boom 29. A second motor 27 is screwed to the bottom end of the boom 29. A winch 28 is installed at the output end of the second motor 27. A lifting steel cable 33 is wound on the surface of the winch 28. The lifting steel cable 33 passes through the inside of the sling 4. This hoisting device is used for hoisting and transporting the connecting pieces required in the tower crane foundation construction process.

[0029] During the installation of the present invention, first fix the hoisting device around the area where the tower crane foundation construction is to be carried out, and stack the connecting piece goods to be hoisted around the hoisting device. The side of the carrier 8 on the support mechanism 1 should be parallel to one of the sides of the tower crane foundation construction. At this time, after starting the second motor 27, the hoisting steel cable 33 can be controlled to move up and down along the hoisting tool 4 part. At the same time, with the cooperation of the inner side of the support mechanism 1 and the flipping assembly 2, the boom 29 can be directly driven to flip vertically, so that the landing point at the bottom of the hoisting tool 4 can be flipped to the side of the entire hoisting device far from the area where the tower crane foundation construction is located, and the connecting piece can be hoisted and connected at this position. Then, by controlling the support mechanism 1 and the flipping mechanism to start, the hoisting tool 4 can be controlled to be moved back to the area where the tower crane foundation construction is located, and by controlling the second motor 27 to wind the hoisting steel cable 33, the purpose of regulating the height of the hoisted connecting piece can be achieved.

[0030] In this embodiment, the support mechanism 1 includes a support platform 6, a first motor 19 and a carrier 8. An end plate 7 is welded on the surface of the support platform 6. A first motor 19 is screwed on the outside of one of the end plates 7. A regulating gear 22 is installed inside the end plate 7. A transmission rod 24 is inserted on the side of the regulating gear 22. A convex plate 25 is integrally formed on the side of the transmission rod 24. The surface of the fixed guide plate 9 is provided with a telescopic channel 10 and a guide hole 11. The guide holes 11 are symmetrically arranged on both sides of the telescopic channel 10. The output end of the first motor 19 is inserted with a drive shaft 20. A drive gear 21 is key-connected to the surface of the drive shaft 20. The bottom of the drive gear 21 and the regulating gear 22 are meshed. Limiting baffles 23 are integrally formed on both sides of the regulating gear 22. A hole is opened in the middle of one of the end plates 7. The transmission rod 24 passes through the hole on the surface of the end plate 7. The support mechanism 1 part can rotate around the rotating base 5 part at one end of the bottom, and cooperate with the extension mechanism 3 to control the coverage range of the hoisting tool 4. Therefore, the goods can be flexibly transported to the four sides of the tower crane foundation construction, expanding the goods landing point range and having higher flexibility, without changing the installation position of the entire hoisting device.

[0031] Specifically, a part of the support mechanism 1 can control the entire turntable 8 to rotate around the rotating base 5 through the driving system 14 at the bottom, so as to control the entire boom 29 to rotate from one side of the tower crane foundation construction to the other side. At the same time, by operating the first motor 19 and the flipping assembly 2, the lifting appliance 4 at the end of the boom 29 can be aligned with the structural areas in different directions of the tower crane foundation construction. In this process, after the first motor 19 is started, the driving gear 21 is driven to rotate through the driving shaft 20. The driving gear 21 meshes with the regulating gear 22, so as to control the regulating gear 22 and the transmission rod 24 on the side to rotate. The convex plate 25 on the side of the transmission rod 24 cooperates with the transmission sleeve 38 to drive the entire flipping assembly 2 to perform a flipping motion. In this process, the entire boom 29 and the lifting appliance 4 at the end can swing reciprocally within the tower crane foundation construction range and the open area on the other side of the hoisting device, so as to realize the transportation function of goods between the two. The limit baffle 23 is used to limit the maximum angle at which the entire boom 29 can swing.

[0032] In this embodiment, the extension mechanism 3 includes a movable guide plate 15, a bottom plate 16 and a guide rod 18. The bottom plate 16 is integrally formed at the bottom end of the movable guide plate 15. The guide rod 18 is welded to the surface of the movable guide plate 15. A jack 17 is screwed to the bottom of the bottom plate 16. A column 12 is welded to the bottom end of the turntable 8. A transfer wheel 13 is installed at the bottom of the column 12. A driving system 14 is built on the side of the transfer wheel 13, and the driving system 14 is used to control the transfer wheel 13 to rotate around the rotating base 5. The guide rods 18 respectively pass through the corresponding guide holes 11. After the jack 17 extends, it is used to press on the ground, and the movable guide plate 15 is aligned with the fixed guide plate 9. The coverage range of the boom 29 can be synchronously adjusted according to the size of the tower crane foundation construction. At the bottom of the support mechanism 1, the power system cooperates with the jack 17 at the bottom of the extension mechanism 3 to control the distance between the boom 29 and the tower crane foundation construction, so as to adjust according to the specific size specifications of the connecting piece, ensuring that the connecting piece can be transported to any position around the tower crane foundation construction with high mobility.

[0033] Specifically, by starting the drive system 14 at the bottom and controlling the operation of the transfer wheels 13 below, the entire table 8 can be directly controlled to rotate in cooperation with the column 12. During this process, the jack 17 at the rear end needs to be retracted. Through the above operating state, the entire boom 29, the flipping assembly 2, and the support mechanism 1 can be directly rotated around the rotating base 5 at the end until the boom 29 is rotated from one side where the tower crane foundation construction is located to the other side. After rotation, due to the driving effect of the first motor 19, the boom 29 can still rotate in the area close to the tower crane foundation construction and the area far from the tower crane foundation construction. Therefore, an equivalent hoisting construction process for the tower crane foundation construction on this side can be achieved. At the same time, according to the specifications of the tower crane foundation construction or the volume of the hoisted goods, the extension range of the extension mechanism 3 can be adjusted in advance during the construction. During the adjustment process, by pulling the expansion slide bar 39 along the inside of the telescopic channel 10 through the movable guide plate 15, the distance between the boom 29 and the surface of the tower crane foundation construction can be changed, so as to flexibly control the position where the connecting piece is transported to the tower crane foundation construction. After the pre-adjustment is completed, the jack 17 can be started to press down to provide support for the bottom plate 16 area, thereby improving the stability of the entire hoisting device.

[0034] In this embodiment, the flipping assembly 2 includes a drive plate 26 and a boom 29. A transmission sleeve 38 is integrally formed at the bottom of the drive plate 26. An insertion slot 40 is formed inside the transmission sleeve 38, and the transmission sleeve 38 is sleeved on the transmission rod 24 and the convex plate 25 through the insertion slot 40. The expansion slide bar 39 passes through the inside of the telescopic channel 10. A support disk 37 is integrally formed between the boom 29 and the drive plate 26. The second motor 27 is screwed on the surface of the support disk 37. The end of the boom 29 is fixedly connected to the lifting appliance 4 through a docking column 30. The lifting appliance 4 includes a lifting plate 31, clamping plates 32, and a hook 34. The lifting plate 31 is integrally formed at the end of the docking column 30. Clamping plates 32 are integrally formed at the bottom of the lifting plate 31. Front-end pulleys 35 and rear-end pulleys 36 are respectively inserted at both ends of the inner side of the clamping plates 32, and both the front-end pulleys 35 and the rear-end pulleys 36 include two sets of pulley structures. The hoisting steel cables 33 respectively pass through the middle positions of the front-end pulleys 35 and the rear-end pulleys 36. The end of the hoisting steel cable 33 is connected to a hook 34. The coverage area of the cargo lifting point is wider. Through the gear transmission part inside the support mechanism 1, the boom 29 can be directly controlled to rotate towards the area far from the tower crane foundation construction, thereby reducing the requirements for the stacking points of the connecting pieces. The hoisting connection of the cargo can be realized from a position far from the tower crane foundation construction range, so that the hoisting and handling span of the cargo is larger, and the operation difficulty is reduced.

[0035] Specifically, the flipping mechanism cooperates with the transmission rod 24 to drive the flipping movement of the end lifting tool 4. After starting the second motor 27, through the winding and unwinding effects of the winch 28, the hoisting steel cable 33 can be wound or unwound, and the end hook 34 is driven to lift or lower the goods. In the front pulley 35 and the rear pulley 36, the hoisting steel cable 33 is clamped and limited to ensure that the hoisting steel cable 33 can move along the inner side of the pulley when the boom 29 swings to any position.

[0036] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms.

[0037] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tower crane foundation construction connector hoisting device, comprising a hoisting device body, characterized in that: The main body of the lifting device comprises a supporting mechanism (1), a turning assembly (2), an extending mechanism (3) and a lifting device (4); a supporting platform (6) is installed at one end of the supporting mechanism (1); a rotating base (5) is installed at the bottom of the supporting platform (6); a supporting platform (8) is welded to the side of the supporting platform (6); a fixed guide plate (9) is integrally formed at the end of the supporting platform (8); an extending mechanism (3) is inserted on the surface of the fixed guide plate (9); a movable guide plate (15) is integrally formed at the end of the extending mechanism (3); An expansion slide bar (39) is provided at the bottom, and the two ends of the expansion slide bar (39) are respectively inserted into the interior of the fixed guide plate (9) and the movable guide plate (15). The top of the flip assembly (2) is integrally formed with a suspension arm (29), and the end of the suspension arm (29) is welded with a sling (4). The bottom end of the suspension arm (29) is screwed with a second motor (27), and a winch (28) is installed at the output end of the second motor (27). The surface of the winch (28) is wound with a lifting steel cable (33), and the lifting steel cable (33) passes through the inner side of the sling (4).

2. A tower crane foundation construction connecting piece hoisting device according to claim 1, characterized in that: The support mechanism (1) comprises a support platform (6), a first motor (19) and a support platform (8); an end plate (7) is welded to the surface of the support platform (6); the first motor (19) is screwed to the outer side of one of the end plates (7); a regulating gear (22) is installed on the inner side of the end plate (7); a transmission rod (24) is inserted into the side of the regulating gear (22); and a convex plate (25) is integrally formed on the side of the transmission rod (24).

3. A tower crane foundation construction connecting piece hoisting device according to claim 2, characterized in that: A telescopic channel (10) and a guide hole (11) are provided on the surface of the fixed guide plate (9), and the guide holes (11) are symmetrically provided on both sides of the telescopic channel (10). A drive shaft (20) is inserted into the output end of the first motor (19), and a drive gear (21) is key-connected on the surface of the drive shaft (20).

4. A tower crane foundation construction connecting piece hoisting device according to claim 3, characterized in that: The bottoms of the driving gear (21) and the regulating gear (22) are meshed with each other, and the two sides of the regulating gear (22) are integrally formed with limit baffles (23), and a hole is opened in the middle of one of the end plates (7), and the transmission rod (24) passes through the hole on the surface of the end plate (7).

5. The tower crane foundation construction connecting piece hoisting device according to claim 3 is characterized in that: The extension mechanism (3) comprises a movable guide plate (15), a base plate (16) and a guide rod (18); the base plate (16) is integrally formed at the bottom end of the movable guide plate (15); the guide rod (18) is welded to the surface of the movable guide plate (15); and a jack (17) is screwed to the bottom of the base plate (16).

6. A tower crane foundation construction connecting piece hoisting device according to claim 5, characterized in that: A column (12) is welded to the bottom end of the support platform (8), a transfer wheel (13) is installed at the bottom of the column (12), a driving system (14) is built on the side of the transfer wheel (13), and the driving system (14) is used to control the transfer wheel (13) to rotate around the rotating base (5).

7. A tower crane foundation construction connecting piece hoisting device according to claim 6, characterized in that: The guide rods (18) pass through the corresponding guide holes (11) respectively, and the jack (17) is used to press on the ground after being extended, and the movable guide plate (15) and the fixed guide plate (9) are aligned.

8. The tower crane foundation construction connecting piece hoisting device according to claim 5, characterized in that: The flip assembly (2) comprises a driving plate (26) and a suspension arm (29); a transmission sleeve (38) is integrally formed at the bottom of the driving plate (26); a plug-in slot (40) is provided inside the transmission sleeve (38); and the transmission sleeve (38) is sleeved onto the transmission rod (24) and the convex plate (25) through the plug-in slot (40); and the expansion slide rod (39) passes through the inside of the telescopic channel (10).

9. A tower crane foundation construction connecting piece hoisting device according to claim 8, characterized in that: A support plate (37) is integrally formed between the suspension arm (29) and the drive plate (26); the second motor (27) is screwed onto the surface of the support plate (37); the end of the suspension arm (29) is fixedly connected to the sling (4) via a docking column (30); the sling (4) comprises a suspension plate (31), a clamping plate (32) and a hook (34); the suspension plate (31) is integrally formed at the end of the docking column (30); and the bottom of the suspension plate (31) is integrally formed with a clamping plate (32).

10. A tower crane foundation construction connecting piece hoisting device according to claim 9, characterized in that: A front pulley (35) and a rear pulley (36) are respectively inserted at the inner ends of the clamping plate (32), and the front pulley (35) and the rear pulley (36) each include two sets of pulley structures. The hoisting steel cable (33) passes through the middle positions of the front pulley (35) and the rear pulley (36), respectively, and a hook (34) is connected to the end of the hoisting steel cable (33).