Safety shielded tower crane
By installing protective support nets and telescopic components on tower cranes, and connecting them to the building structure via building scaffolding, the safety and stability issues of tower cranes are resolved, achieving more efficient construction safety assurance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU ZHONGJIAN DAFENG MASCH LEASING CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-06-02
AI Technical Summary
Existing tower cranes have insufficient safety during construction, posing risks of falling objects from heights and structural instability, which affect construction progress and safety.
The system employs protective netting and telescopic components for four-sided support, combined with building trusses and connections to the building structure, to enhance stability. The protective netting also helps to catch falling objects, reducing the risk of objects falling from heights.
It improves the support stability and safety of tower cranes, reduces the risk of falling objects from heights, reduces material consumption, increases dismantling efficiency, and ensures construction safety and continuity.
Smart Images

Figure CN224313141U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tower crane technology, and in particular to a safety-protected tower crane. Background Technology
[0002] Tower cranes, also known as tower hoists or tower cranes, are a type of crane with special functions and a wide range of applications. Their main characteristic is their height; they can be built to a height matching the building's height, with some even exceeding 1000 meters.
[0003] Improving the safety of tower cranes is extremely necessary. It can comprehensively protect lives, preventing operators, construction site personnel, and the general public from being threatened with death due to accidents. In terms of property, it can prevent equipment damage, reduce the loss of building materials, and prevent damage to surrounding buildings and facilities. From the perspective of construction order, it can ensure construction progress, reduce construction costs, and ensure construction continuity. At the same time, it can enhance the industry's image, establish a safe and reliable image for the construction industry, promote social stability, and effectively prevent and reduce the adverse effects of accidents on social harmony. Utility Model Content
[0004] The purpose of this invention is to provide a safe and protective tower crane that significantly improves construction safety.
[0005] To achieve the above objectives, the solution adopted by this utility model is as follows:
[0006] A safety-protected tower crane includes a main frame, on which several support frames and mounting blocks connected thereto are provided;
[0007] Several protective support nets are provided, and the protective support nets are connected to the mounting blocks by second mounting bolts;
[0008] Several telescopic components, each telescopic component having its two ends connected to a mounting block and a support plate respectively via connecting components, and a fixed cone connected to the bottom end of the support plate;
[0009] Several building frames, each building frame including a spiral grooved plate and a cross brace, wherein the spiral grooved plate is connected to a support frame via a turntable, and the cross brace is connected to the spiral grooved plate via a connector.
[0010] Furthermore, the mounting block is fixedly connected to the support frame by a first mounting bolt, and a connecting groove is provided on the mounting block, in which the support frame is engaged.
[0011] Furthermore, a plug-in block is provided on one side of the protective receiving net, and a plug-in groove is provided on the mounting block for the plug-in block to engage. The plug-in block is fixedly installed in the plug-in groove by the second mounting bolt.
[0012] Furthermore, a support rod is connected to the lower part of the protective support net, and the other end of the support rod is fixedly connected to the mounting block.
[0013] Furthermore, the telescopic assembly includes a first telescopic rod and a second telescopic rod. The first telescopic rod has an adjustment groove for one end of the second telescopic rod to be movably connected. One end of the second telescopic rod has a plurality of adjustment screw holes. An adjustment bolt is installed on the first telescopic rod, and the adjustment bolt is connected to the adjustment screw holes.
[0014] Furthermore, the spiral groove disk is provided with a plane equal-height spiral groove, and the connector is provided with a vertically movable docking plug, which can be inserted into the plane equal-height spiral groove for connection.
[0015] Furthermore, the building frame is laterally connected to the support frame and the building body.
[0016] Furthermore, the connecting assembly includes a first connecting block and a second connecting block that are hinged together. The first connecting block is connected to the distal ends of the first telescopic rod and the second telescopic rod, respectively, and the second connecting block is connected to the mounting block and the support plate, respectively.
[0017] Furthermore, a limiting block is provided on one side of the protective receiving net, and a corresponding limiting slot is provided on the other side of the protective receiving net.
[0018] Furthermore, the building frame is installed at a height higher than the protective support net and the telescopic components.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] This utility model, through the setting of telescopic components and mounting blocks, can provide four-sided support for the tower crane body, improve support stability, enhance anti-tilting ability, and reduce weight while ensuring support effect, thereby reducing material consumption. After the tower crane is moved or dismantled, it can be easily disassembled, stored and reused, improving work efficiency during dismantling.
[0021] This utility model, through the setting of a protective receiving net, can catch falling parts, tools, etc., thereby effectively reducing the risk of falling objects from heights injuring people and equipment below, and can be quickly disassembled and repaired when the receiving net is damaged.
[0022] This utility model greatly enhances the stability of the tower crane by setting up a building frame to connect the support frame and the building body laterally, and by using the overall structure of the building to share the horizontal load, thus preventing it from tilting, swaying or even collapsing due to horizontal forces. Attached Figure Description
[0023] Figure 1This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a schematic cross-sectional view of the present invention. Figure 1 ;
[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 This is a schematic cross-sectional view of the present invention. Figure 2 ;
[0027] Figure 5 This is a schematic diagram of the building frame structure in this utility model;
[0028] Figure 6 for Figure 5 Enlarged diagram of point B in the middle.
[0029] In the diagram: 1. Main frame; 2. Support frame; 3. Mounting block; 4. First mounting bolt; 5. Protective support net; 6. Second mounting bolt; 7. Support plate; 8. Fixing cone; 9. Connecting groove; 10. Insertion block; 11. Insertion groove; 12. Support rod; 13. First telescopic rod; 14. Second telescopic rod; 15. Adjustment groove; 16. Adjustment screw hole; 17. Adjustment bolt; 18. First connecting block; 19. Second connecting block; 20. Limiting block; 21. Limiting groove; 22. Building frame; 22a. Spiral groove plate; 22b. Cross brace; 22c. Turntable; 22d. Insertion connector. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0031] Example 1: As Figures 1-4As shown, a safety-protected tower crane includes a main frame 1, on which a slewing bearing, tower top, boom, counterweight boom, and other necessary components are mounted (existing technologies are not shown in the attached drawings). The main frame 1 is the main support structure of the tower crane, typically composed of multiple standard sections connected by high-strength bolts, and has internal space for electrical wiring and ladders. The height of the main frame 1 can be assembled and disassembled according to construction needs to adapt to construction at different heights. Specifically, in this design, the main frame 1 is provided with several support frames 2 and mounting blocks 3 connected to them. The mounting blocks 3 are fixedly connected to the support frames 2 by first mounting bolts 4, and the mounting blocks 3 are provided with connecting grooves 9, in which the support frames 2 engage.
[0032] When connecting the mounting block 3 to the main frame 1, the connecting groove 9 on the mounting block 3 is engaged with the support frame 2, and then the first mounting bolt 4 is used to connect with the support frame 2, thereby connecting and fixing the mounting block 3 to the support block, which facilitates the installation and disassembly of the mounting block 3 and the support frame 2.
[0033] The main frame 1 is also provided with several protective support nets 5. The several protective support nets 5 are connected to the mounting block 3 by the second mounting bolts 6. The several protective support nets 5 are provided with plug-in blocks 10 on one side. The mounting block 3 is provided with plug-in grooves 11 for the plug-in blocks 10 to engage. The plug-in blocks 10 are fixedly installed in the plug-in grooves 11 by the second mounting bolts 6.
[0034] When connecting the protective netting 5 to the mounting block 3, the plug-in block 10 on the protective netting 5 engages in the plug-in groove 11. Then, the second mounting bolt 6 is used to fix the plug-in block 10 in the plug-in groove 11, thus fixing the protective netting 5 and the mounting block 3 together. The protective netting 5 can catch falling tools, etc., thereby effectively reducing the risk of falling objects from heights injuring people and equipment below. When the protective netting 5 is damaged, the second mounting bolt 6 can be removed, and then the plug-in block 10 can be taken out from the plug-in groove 11 for disassembly and maintenance of the protective netting 5.
[0035] Furthermore, a support rod 12 is connected to the lower part of the protective support net 5, and the other end of the support rod 12 is fixedly connected to the mounting block 3. A limit block 20 is provided on one side of the protective support net 5, and a limit slot 21 is opened on the other side of the protective support net 5.
[0036] In this embodiment, the support rod 12 can support the protective support net 5, thereby improving the structural strength and support effect of the protective support net 5. Furthermore, the limit block 20 and the limit slot 21 can improve the splicing efficiency between the protective support nets 5 when they are connected.
[0037] On the other hand, the main frame 1 is also provided with several telescopic components. The two ends of the telescopic components are connected to the mounting block 3 and the support plate 7 respectively through connecting components. The bottom end of the support plate 7 is connected to a fixed cone 8. The telescopic components include a first telescopic rod 13 and a second telescopic rod 14. The first telescopic rod 13 is provided with an adjustment groove 15 for one end of the second telescopic rod 14 to be movably connected. One end of the second telescopic rod 14 is provided with several adjustment screw holes 16. An adjustment bolt 17 is installed on the first telescopic rod 13 and is connected to the adjustment screw holes 16. The connecting components include a first connecting block 18 and a second connecting block 19 that are hinged together. The first connecting block 18 is connected to the far ends of the first telescopic rod 13 and the second telescopic rod 14 respectively. The second connecting block 19 is connected to the mounting block 3 and the support plate 7 respectively.
[0038] With the above technical solution, when adjusting the support for the main frame 1, rotate the first telescopic rod 13 and the second telescopic rod 14 to a suitable support angle, insert the fixing cone 8 at the bottom of the support plate 7 into the ground, and when rotating for adjustment, the first telescopic rod 13 moves in the adjustment groove 15 on the second telescopic rod 14. After adjusting to a suitable position, use the adjusting bolt 17 to connect with the corresponding adjusting screw hole 16 to fix the first telescopic rod 13 and the second telescopic rod 14.
[0039] When the first telescopic rod 13 and the second telescopic rod 14 rotate, the first connecting block 18 rotates, which facilitates angle adjustment during support.
[0040] The above scheme can provide four-sided support for the main frame 1, improve support stability, enhance earthquake resistance and anti-tilting ability, and reduce weight while ensuring support effect, thereby reducing material consumption. It can be easily disassembled, stored and reused after the tower crane is moved or dismantled, significantly reducing the waste of building materials and improving work efficiency during dismantling.
[0041] Example 2: Based on Example 1 above, combined with... Figure 5 , Figure 6As shown, a building truss 22 is connected to the main frame 1. Its height is higher than the protective support netting 5 and the telescopic components. It includes a spiral grooved plate 22a and a cross brace 22b. The spiral grooved plate 22a is connected to the support frame 2 via a turntable 22c. The cross brace 22b is connected to the spiral grooved plate 22a via a connector 22d. The spiral grooved plate 22a has a plane-level spiral groove. The connector 22d contains a vertically movable docking plug, which can be inserted into the plane-level spiral groove for connection. This connection is achieved through control... The rotation of the spiral groove plate 22a, due to the connection characteristics of the spiral groove and the docking plug, can adjust the tightness of the connection between the support frame 2 and the cross brace 22b. The building frame 22 connects the support frame 2 and the building body laterally, that is, the end of the cross brace 22b that is not connected to the plug 22d is connected to the building body. By controlling the movement of the docking plug and its insertion with the spiral groove plate 22a, the building frame 22 is laterally connected to the main frame 1 and the building body, which can enhance the stability of the tower crane, prevent tilting, and ensure construction safety.
[0042] During construction, tower cranes may be subjected to horizontal forces such as wind loads and the swaying of heavy objects. Connecting the tower crane to the building structure can transfer these horizontal forces to the building structure, using the overall structure of the building to share the horizontal load, thereby greatly enhancing the stability of the tower crane and preventing it from tilting, swaying, or even collapsing due to horizontal forces.
[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. It should be noted that for those skilled in the art, any changes, modifications or additions without departing from the concept of the present utility model should fall within the protection scope of the present utility model.
Claims
1. A safety-protected tower crane, characterized in that: It includes a main frame (1), on which several support frames (2) and mounting blocks (3) connected thereto are provided; Several protective support nets (5) are connected to the mounting block (3) by second mounting bolts (6); Several telescopic components, the two ends of which are connected to the mounting block (3) and the support plate (7) respectively through connecting components, and the bottom end of the support plate (7) is connected to a fixed cone (8); Several building frames (22) are provided, each building frame (22) including a spiral grooved plate (22a) and a cross brace (22b). The spiral grooved plate (22a) is connected to the support frame (2) via a turntable (22c), and the cross brace (22b) is connected to the spiral grooved plate (22a) via a connector (22d).
2. A safety-protected tower crane according to claim 1, characterized in that: The mounting block (3) is fixedly connected to the support frame (2) by the first mounting bolt (4). The mounting block (3) has a connecting groove (9), and the support frame (2) is engaged in the connecting groove (9).
3. A safety-protected tower crane according to claim 1, characterized in that: The protective receiving net (5) has a plug-in block (10) on one side. The mounting block (3) has a plug-in groove (11) for the plug-in block (10) to engage. The plug-in block (10) is fixedly installed in the plug-in groove (11) by the second mounting bolt (6).
4. A safety-protected tower crane according to claim 3, characterized in that: The lower part of the protective support net (5) is connected to a support rod (12), and the other end of the support rod (12) is fixedly connected to the mounting block (3).
5. A safety-protected tower crane according to claim 1, characterized in that: The telescopic assembly includes a first telescopic rod (13) and a second telescopic rod (14). The first telescopic rod (13) has an adjustment groove (15) for one end of the second telescopic rod (14) to be movably connected. One end of the second telescopic rod (14) has a plurality of adjustment screw holes (16). An adjustment bolt (17) is installed on the first telescopic rod (13), and the adjustment bolt (17) is connected to the adjustment screw holes (16).
6. A safety-protected tower crane according to claim 1, characterized in that: The spiral groove disk (22a) is provided with a plane equal height spiral groove, and the plug (22d) is provided with a docking plug that can move up and down. The docking plug can be inserted into the plane equal height spiral groove and connected thereto.
7. A safety-protected tower crane according to claim 6, characterized in that: The building frame (22) is horizontally connected to the support frame (2) and the building body.
8. A safety-protected tower crane according to claim 5, characterized in that: The connecting assembly includes a first connecting block (18) and a second connecting block (19) that are hinged to each other. The first connecting block (18) is connected to the distal ends of the first telescopic rod (13) and the second telescopic rod (14), respectively. The second connecting block (19) is connected to the mounting block (3) and the support plate (7), respectively.
9. A safety-protected tower crane according to claim 4, characterized in that: The protective receiving net (5) is provided with a limiting block (20) on one side and a limiting slot (21) with a corresponding position on the other side.
10. A safety-protected tower crane according to claim 1, characterized in that: The building frame (22) is set at a height higher than the protective support net (5) and the telescopic components.