Attachment system reinforcement for a tower crane

CN224350288UActive Publication Date: 2026-06-12BEIJING PANGYUAN MECHANICAL ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING PANGYUAN MECHANICAL ENG CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The attachment rods of existing tower cranes are prone to deformation under axial pressure and bending moment, affecting normal use, and the connecting boom is also prone to deformation, leading to safety hazards.

Method used

The design employs a snap-fit ​​positioning structure with a locking buckle and connecting block, combined with the "X"-shaped cross-section of the reinforcing component and the design of the reinforcing rod, to form a closed force circuit. The locking pin enables a detachable rigid connection, enhancing the resistance to deformation, and the reinforcing rod distributes the load, avoiding local stress concentration.

Benefits of technology

It improves the installation convenience and structural strength of the tower crane attachment system, enhances its resistance to deformation, prevents deformation of the connecting rod under axial pressure and bending moment, and ensures safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to tower crane technical field discloses a kind of tower crane's attachment system reinforcing structure, including crane body, locking pin, connecting block and reinforcing assembly, the connecting frame is provided at crane body outer edge, the connecting frame is fixedly installed with connecting rod one in the end away from crane body, the connecting rod one is fixedly installed with connecting rod three in the end away from connecting frame, the connecting block is fixedly installed with reinforcing arm in the end away from connecting rod three, the reinforcing assembly is close to the end of crane body and is provided with connecting assembly. The attachment system reinforcing structure of this tower crane, the fitting structure of lock catch one and connecting block can form clamping positioning, mounting groove one can be installed for locking pin, so that connecting block and connecting rod three are detachably rigidly connected by locking pin, both can guarantee the installation convenience of attachment system, and also can limit the displacement of connecting block by the slot structure of lock catch one, the anti-deformation ability of connecting rod three and connecting assembly can be enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of tower crane technology, specifically to a reinforcement structure for the attachment system of a tower crane. Background Technology

[0002] During construction, tower cranes are frequently used as vertical transport machinery for all materials in foundation, main structure, masonry enclosure structure, and roof construction, excluding the main concrete structure. When the construction height of the building exceeds the independent height of the tower crane, it is necessary to lift the tower crane to increase its height. In this case, one or more attachment devices should be added between the building and the tower crane to increase the stability of the tower crane and prevent it from overturning and being damaged due to excessive overturning moment caused by external factors such as excessive height and wind load, thus causing safety accidents and property losses.

[0003] Chinese Utility Model Patent Publication No. CN219098587U discloses an attachment rod for a tower crane. This attachment rod features a protective structure consisting of a protective steel plate and an asphalt coating installed on the outside of a waterproof membrane. The protective steel plate provides rigid protection and is made of hot-rolled coil as the base material, undergoing heat treatment. This results in superior resistance to gunfire and impact, strong resistance to destructive impacts, uniform and stable performance, and good plate shape and surface quality. The asphalt coating provides external isolation protection; asphalt is an inexpensive and readily available anti-corrosion material, enhancing the overall external corrosion resistance. This protective structure improves the overall external protection of the attachment rod, facilitating long-term use in daily life. However, this protective structure of the steel plate and asphalt coating on the tower crane's attachment rod is prone to deformation of the connecting arm under axial pressure and bending moment, which can affect its normal use. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a reinforcement structure for the attachment system of a tower crane, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a reinforcement structure for the attachment system of a tower crane, including a crane body, a locking pin, a connecting block and a reinforcing component. A connecting frame is provided at the outer edge of the crane body. A connecting rod one is fixedly installed at the end of the connecting frame away from the crane body. A connecting rod three is fixedly installed at the end of the connecting rod one away from the connecting frame. A reinforcing arm is fixedly installed at the end of the connecting block away from the connecting rod three. A connecting component is provided at the end of the reinforcing component close to the crane body.

[0006] The connecting component includes a connecting arm, and a second latch is fixedly installed at one end of the connecting arm away from the connecting frame. An installation groove two is penetrated from top to bottom at one end of the second latch, and a connecting column is threadedly connected to one end of the connecting arm close to the strengthening component;

[0007] The strengthening component includes a first strengthening frame and a second strengthening frame. The first strengthening frame is connected to the connecting component, and the second strengthening frame is connected to the attachment frame. A first strengthening column, a second strengthening column and a third strengthening column are arranged between the first strengthening frame and the second strengthening frame.

[0008] Preferably, a first latch is fixedly installed at one end of the third connecting rod away from the second connecting rod. An installation groove one is penetrated from top to bottom in the first latch, and the first latch is adapted to one end of the connecting block.

[0009] Through the above technical solution, the matching structure of the first latch and the connecting block can form a clamping position, and the installation groove one is convenient for installing the locking pin, so that the connecting block and the third connecting rod are detachably and rigidly connected through the locking pin, which can not only ensure the installation convenience of the attachment system, but also limit the displacement of the connecting block through the groove structure of the first latch, and can enhance the anti-deformation ability of the third connecting rod and the connecting component.

[0010] Preferably, a gasket is threadedly connected to one end of the connecting column away from the connecting arm. The gasket has an "L" - shaped cross - section structure, and the gasket contacts the strengthening component.

[0011] Through the above technical solution, the "L" - shaped gasket can abut against the end face and the side face of the strengthening component through two vertical planes respectively, and can play a certain limiting role to prevent the connecting column from loosening.

[0012] Preferably, the first strengthening column, the second strengthening column and the third strengthening column have a cross - section in the shape of a "rice" character, and the first strengthening column, the second strengthening column and the third strengthening column.

[0013] Through the above technical solution, the strengthening column with a "rice" - shaped cross - section can significantly increase the moment of inertia and torsional stiffness of the cross - section through a multi - directional rib structure. When the strengthening component bears horizontal thrust and vertical bending moment, the load can be evenly distributed to each rib plate, reducing local stress concentration.

[0014] Preferably, a first latch is fixedly installed at one end of the third connecting rod close to the second connecting rod. An installation groove one is penetrated at one end of the first latch, and connecting blocks are arranged at both ends of the strengthening arm. The connecting blocks are respectively adapted to the first latch and the second latch.

[0015] Through the above technical solution, the connecting blocks at both ends of the strengthening arm are respectively clamped with the first latch of the third connecting rod and the second latch of the connecting component, forming a "triangle stable structure", so that the crane body, the connecting rod component and the strengthening component form a closed force - bearing loop.

[0016] Preferably, the connecting component has an installation sleeve on its outer edge, and a positioning bolt is threaded through the outer edge of the installation sleeve. The installation sleeve is compatible with the connecting rod and the connecting component.

[0017] With the above technical solution, the mounting sleeve is installed at the connection between the connecting rod and the connecting component. After tightening with the positioning bolt, the relative displacement between the two can be restricted, forming a rigid constraint. This not only facilitates the quick positioning of the angle of the connecting component during on-site installation, but also enhances the shear strength of the connection through the ring structure of the mounting sleeve.

[0018] Preferably, a first reinforcing rod and a second reinforcing rod are welded to the inner edge of the first connecting rod. There are two identical first reinforcing rods, both of which are welded to the first connecting rod. The second reinforcing rod connects the two vertices of the first reinforcing rod.

[0019] Through the above technical solution, the design of reinforcing rod one and reinforcing rod two can effectively prevent the deformation of connecting rod one under axial pressure and bending moment, and decompose the external load into the axial force of each reinforcing rod, avoiding local bending or twisting of connecting rod one, thereby improving the structural strength and deformation resistance of the entire connecting rod assembly.

[0020] Compared with the prior art, this utility model provides a reinforced structure for the attachment system of a tower crane, which has the following beneficial effects:

[0021] 1. The attachment system of this tower crane has a reinforced structure. The matching structure of the locking buckle and the connecting block can form a snap-fit ​​positioning. The mounting groove can facilitate the installation of the locking pin, so that the connecting block and the connecting rod three can be detachably rigidly connected through the locking pin. This can not only ensure the installation convenience of the attachment system, but also restrict the displacement of the connecting block through the groove structure of the locking buckle, thereby enhancing the deformation resistance of the connecting rod three and the connecting components.

[0022] 2. The reinforced structure of the tower crane's attachment system, through the design of reinforcing rod one and reinforcing rod two, can effectively prevent the deformation of connecting rod one under axial pressure and bending moment, and decompose the external load into the axial force of each reinforcing rod, avoiding local bending or twisting of connecting rod one, thereby improving the structural strength and deformation resistance of the entire connecting rod assembly. The "M"-shaped cross-section reinforcing column can significantly improve the moment of inertia and torsional stiffness of the cross-section through the multi-directional rib structure, so that when the reinforcing assembly is subjected to horizontal thrust and vertical bending moment, the load can be evenly distributed to each rib, reducing local stress concentration. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the installation structure of the connecting frame and connecting rod of this utility model. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the installation structure of the connecting frame and connecting rod of this utility model. Figure 2 ;

[0027] Figure 5 This is a schematic diagram of the installation structure of the connecting rod 1 and the reinforcing rod 1 of this utility model;

[0028] Figure 6 This is a schematic diagram of the mounting sleeve and positioning bolt installation structure of this utility model. Figure 1 ;

[0029] Figure 7 This is a schematic diagram of the installation structure of the mounting sleeve and positioning bolt of this utility model;

[0030] Figure 8 This is a schematic diagram of the disassembled structure of the connecting component of this utility model.

[0031] Figure 9 This is a three-dimensional structural diagram of the reinforcing component of this utility model.

[0032] The components include: 1. Crane body; 2. Locking pin; 3. Connecting frame; 4. Connecting rod one; 5. Reinforcing rod one; 6. Reinforcing rod two; 7. Connecting rod two; 8. Connecting rod three; 9. Locking buckle one; 10. Mounting slot one; 11. Connecting block; 12. Reinforcing arm; 13. Connecting assembly; 1301. Connecting arm; 1302. Locking buckle two; 1303. Mounting slot two; 1304. Connecting column; 1305. Gasket; 14. Mounting sleeve; 15. Positioning bolt; 16. Reinforcing assembly; 1601. Reinforcing frame one; 1602. Reinforcing column one; 1603. Reinforcing frame two; 1604. Reinforcing column two; 1605. Reinforcing column three. Detailed Implementation

[0033] 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 protection scope of the present utility model.

[0034] Example 1: As Figure 1-9As shown, the present invention provides a reinforcement structure for the attachment system of a tower crane, including a crane body 1, a locking pin 2, a connecting block 11 and a reinforcement component 16. A connecting frame 3 is provided at the outer edge of the crane body 1. A connecting rod 4 is fixedly installed at the end of the connecting frame 3 away from the crane body 1. A connecting rod 8 is fixedly installed at the end of the connecting rod 4 away from the connecting frame 3. A reinforcement arm 12 is fixedly installed at the end of the connecting block 11 away from the connecting rod 8. A connecting component 13 is provided at the end of the reinforcement component 16 close to the crane body 1.

[0035] The connecting component 13 includes a connecting arm 1301. A second latch 1302 is fixedly installed at the end of the connecting arm 1301 away from the connecting frame 3. A second mounting groove 1303 is provided through the second latch 1302 from top to bottom. A connecting post 1304 is threadedly connected to the end of the connecting arm 1301 near the reinforcing component 16.

[0036] The reinforcing component 16 includes a first reinforcing frame 1601 and a second reinforcing frame 1603. The first reinforcing frame 1601 is used to connect to the connecting component 13, and the second reinforcing frame 1603 is connected to the attachment frame. A first reinforcing post 1602, a second reinforcing post 1604 and a third reinforcing post 1605 are provided between the first reinforcing frame 1601 and the second reinforcing frame 1603.

[0037] Specifically, a latch 9 is fixedly installed at the end of the connecting rod 3 8 away from the connecting rod 2 7. The latch 1 9 has a mounting groove 10 extending from top to bottom. The latch 1 9 is adapted to one end of the connecting block 11. The advantage is that the adaptation structure of the latch 1 9 and the connecting block 11 can form a snap-fit ​​positioning. The mounting groove 10 can facilitate the installation of the locking pin 2, so that the connecting block 11 and the connecting rod 3 8 can be detachably rigidly connected through the locking pin 2. This can not only ensure the installation convenience of the attachment system, but also restrict the displacement of the connecting block 11 through the groove structure of the latch 1 9, which can enhance the deformation resistance of the connecting rod 3 8 and the connecting assembly 13.

[0038] Specifically, a gasket 1305 is threaded to the end of the connecting post 1304 away from the connecting arm 1301. The gasket 1305 has an "L" shaped cross-section and contacts the reinforcing component 16. The advantage is that the "L" shaped gasket 1305 can abut against the end face and side face of the reinforcing component 16 through two vertical surfaces, and at the same time, it can play a certain limiting role to prevent the connecting post 1304 from loosening.

[0039] Specifically, the cross-sections of the first strengthening column 1602, the second strengthening column 1604, and the third strengthening column 1605 are in a "rice" - shaped structure. The first strengthening column 1602, the second strengthening column 1604, and the third strengthening column 1605 have the advantage that the strengthening column with a "rice" - shaped cross - section can significantly increase the moment of inertia and torsional stiffness of the cross - section through a multi - directional rib structure. When the strengthening component 16 bears horizontal thrust and vertical bending moment, it can evenly disperse the load to each rib, reducing local stress concentration.

[0040] Embodiment 2: As Figure 2-9 shown, as an improvement over the previous embodiment.

[0041] Specifically, a first lock 9 is fixedly installed at one end of the third connecting rod 8 close to the second connecting rod 7. An installation groove 10 is opened through one end of the first lock 9. Connection blocks 11 are provided at both ends of the strengthening arm 12, and the connection blocks 11 are respectively adapted to the first lock 9 and the second lock 1302. The advantage is that the connection blocks 11 at both ends of the strengthening arm 12 are respectively clamped with the first lock 9 of the third connecting rod 8 and the second lock 1302 of the connection component 13, forming a "triangle stable structure", so that the crane body 1, the connecting rod component, and the strengthening component 16 form a closed force - bearing loop.

[0042] Specifically, an installation sleeve 14 is provided on the outer edge of the connection component 13. A positioning bolt 15 is threadedly connected through the outer edge of the installation sleeve 14. The installation sleeve 14 is adapted to the third connecting rod 8 and the connection component 13. The advantage is that the installation sleeve 14 is sleeved at the connection between the third connecting rod 8 and the connection component 13. After being tightened by the positioning bolt 15, the relative displacement between the two can be restricted, forming a rigid constraint. It not only facilitates quickly positioning the angle of the connection component 13 during on - site installation, but also can enhance the shear strength of the connection part through the annular structure of the installation sleeve 14.

[0043] Specifically, a first strengthening rod 5 and a second strengthening rod 6 are welded inside the first connecting rod 4. Two identical first strengthening rods 5 are welded to the first connecting rod 4, and the second strengthening rod 6 connects the two vertices of the first strengthening rod 5. The advantage is that through the design of the first strengthening rod 5 and the second strengthening rod 6, the deformation of the first connecting rod 4 under axial pressure and bending moment can be effectively avoided, and the external load is decomposed into the axial forces of each strengthening rod, avoiding local bending or twisting of the first connecting rod 4, thereby improving the structural strength and anti - deformation ability of the entire connecting rod component.

[0044] Working principle: During use, the mating structure between the first latch 9 and the connecting block 11 can form a snap connection for positioning. The first mounting groove 10 facilitates the installation of the locking pin 2, enabling the connecting block 11 and the third connecting rod 8 to achieve a detachable rigid connection through the locking pin 2. This not only ensures the convenience of installing the attachment system but also restricts the displacement of the connecting block 11 through the groove structure of the first latch 9, enhancing the anti-deformation ability of the third connecting rod 8 and the connecting component 13. The "L"-shaped gasket 1305 can abut against the end face and side face of the strengthening component 16 through two perpendicular surfaces, and can also play a certain limiting role to prevent the connecting column 1304 from loosening. The strengthening column with a "rice"-shaped cross-section can significantly increase the moment of inertia and torsional stiffness of the cross-section through a multi-directional rib structure. When the strengthening component 16 bears a horizontal thrust and a vertical bending moment, it can evenly distribute the load to each rib, reducing local stress concentration. The connecting blocks 11 at both ends of the strengthening arm 12 are respectively snap-connected to the first latch 9 of the third connecting rod 8 and the second latch 1302 of the connecting component 13, forming a "triangle stable structure", enabling the crane body 1, the connecting rod assembly, and the strengthening component 16 to form a closed force-bearing loop. The mounting sleeve 14 is sleeved at the connection between the third connecting rod 8 and the connecting component 13. After being tightened by the positioning bolt 15, it can limit their relative displacement, forming a rigid constraint. This not only facilitates quickly positioning the angle of the connecting component 13 during on-site installation but also enhances the anti-shear strength of the connection through the annular structure of the mounting sleeve 14. Through the design of the first strengthening rod 5 and the second strengthening rod 6, the deformation of the first connecting rod 4 under axial pressure and bending moment can be effectively avoided, and the external load is decomposed into the axial forces of each strengthening rod, preventing the first connecting rod 4 from generating local bending or torsion, thereby improving the structural strength and anti-deformation ability of the entire connecting rod assembly.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for the attachment system of a tower crane, comprising a crane body (1), a locking pin (2), a connecting block (11), and a reinforcing component (16), characterized in that: A connecting frame (3) is provided at the outer edge of the crane body (1). One end of the connecting frame (3) far from the crane body (1) is fixedly installed with a first connecting rod (4). One end of the first connecting rod (4) far from the connecting frame (3) is fixedly installed with a third connecting rod (8). One end of the connecting block (11) far from the third connecting rod (8) is fixedly installed with a strengthening arm (12). One end of the strengthening component (16) close to the crane body (1) is provided with a connecting component (13). The connecting component (13) includes a connecting arm (1301). One end of the connecting arm (1301) far from the connecting frame (3) is fixedly installed with a second lock (1302). An installation groove two (1303) is vertically penetrated and opened at one end of the second lock (1302). One end of the connecting arm (1301) close to the strengthening component (16) is threadedly connected with a connecting column (1304). The strengthening component (16) includes a first strengthening frame (1601) and a second strengthening frame (1603). Between the first strengthening frame (1601) and the second strengthening frame (1603), a first strengthening column (1602), a second strengthening column (1604) and a third strengthening column (1605) are provided.

2. The anchoring system reinforcement structure for a tower crane according to claim 1, characterized in that: One end of the third connecting rod (8) far from the second connecting rod (7) is fixedly installed with a first lock (9). An installation groove one (10) is vertically penetrated and opened on the first lock (9). The first lock (9) is adapted to one end of the connecting block (11).

3. The anchoring system reinforcement structure for a tower crane according to claim 1, characterized in that: One end of the connecting column (1304) far from the connecting arm (1301) is threadedly connected with a gasket (1305). The cross section of the gasket (1305) is in an "L" shape structure. The gasket (1305) is in contact with the strengthening component (16).

4. The anchoring system reinforcement structure for a tower crane according to claim 1, characterized in that: The cross sections of the first strengthening column (1602), the second strengthening column (1604) and the third strengthening column (1605) are in a "rice" shape structure, the first strengthening column (1602), the second strengthening column (1604) and the third strengthening column (1605).

5. The anchoring system reinforcement structure for a tower crane according to claim 1, characterized in that: One end of the third connecting rod (8) close to the second connecting rod (7) is fixedly installed with a first lock (9). An installation groove one (10) is penetrated and opened at one end of the first lock (9). Both ends of the strengthening arm (12) are provided with connecting blocks (11). The connecting blocks (11) are respectively adapted to the first lock (9) and the second lock (1302).

6. The anchoring system reinforcement structure for a tower crane according to claim 1, characterized in that: An installation sleeve (14) is provided at the outer edge of the connecting component (13). A positioning bolt (15) is threadedly connected through the outer edge of the installation sleeve (14). The installation sleeve (14) is adapted to the third connecting rod (8) and the connecting component (13).

7. The anchoring system reinforcement structure for a tower crane according to claim 1, characterized in that: ​