Tower crane attached embedded sleeve connecting structure
By using a pre-embedded sleeve connection structure, the problem of inconvenient installation of tower crane attachments in narrow spaces is solved, achieving efficient and quick tower crane attachment connections and enhancing the stability and safety of construction.
Patent Information
- Application Number
- CN202520167388.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Existing tower crane attachments lack versatility, making them difficult to install efficiently and quickly in narrow spaces and complex environments, thus affecting construction stability and safety.
The pre-embedded sleeve connection structure is adopted, including positioning steel plate, sleeve, connecting rod and tee connector. It is pre-embedded in concrete through mechanical connection, avoiding on-site welding. The sleeve and connecting rod are used to transfer load, which enhances the stability and reliability of the connection.
It improves the stability and construction efficiency of tower crane attachment connections, reduces construction complexity and uncertainty, ensures the safe operation of tower cranes in confined spaces, and reduces the difficulty and cost of on-site construction.
Smart Images
Figure CN223866247U_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of bridge construction technology and relates to a tower crane attachment pre-embedded sleeve connection structure. Background Technology
[0002] Tower cranes, as indispensable vertical transportation equipment in construction, require high stability and safety, and their attachment structures are a key component ensuring stable operation. Within the tower crane attachment system, embedded parts effectively transfer the crane's attachment load to the main building structure. Currently, various types of tower crane attachment embedded parts are available on the market, such as the commonly used welded embedded parts. These embedded parts each have their own advantages in different construction environments, such as specific building structure types and construction site space conditions.
[0003] However, existing tower crane anchorage components share a common and significant drawback: limited universality. In practical applications, the pre-embedding environments vary considerably across different construction projects, and many components have stringent environmental requirements. For example, some components require substantial pre-embedding space for installation and welding, making them difficult to implement in confined spaces. Other components have specific requirements regarding the reinforcement arrangement and concrete pouring conditions of the building structure. When the actual environment does not meet the pre-set conditions, it can easily lead to installation difficulties or compromised post-installation performance, thereby affecting the overall stability and safety of the tower crane anchorage and causing numerous inconveniences and potential risks to construction.
[0004] To address the issue of poor universality of tower crane attachments, current solutions include, for example, an adjustable-angle tower crane attachment proposed in patent number [number missing], which uses a special hinge structure to adapt to different installation angle requirements. Its advantage lies in its ability to alleviate installation difficulties caused by changes in building structure angles to some extent. However, this structure is relatively complex, increasing manufacturing costs and installation difficulty, and its improvement in ease of construction in confined spaces is limited. Some studies have proposed using high-strength bolt connections, which reduces dependence on the welding environment compared to traditional welding. However, this requires high precision in the pre-embedded holes, making it difficult to guarantee accuracy in complex and variable pre-embedded environments, potentially affecting connection reliability. The pre-embedded sleeve connection used in this study employs a mechanical connection method, avoiding the need for on-site welding. When constructing in confined and complex environments, there is no need to consider welding space issues, enabling more efficient and faster installation. This effectively overcomes the shortcomings of existing pre-embedded components in terms of limited universality and inconvenience in specific complex environments, providing a new and effective solution for the installation of tower crane attachments. Summary of the Invention
[0005] This invention provides a tower crane attachment embedded sleeve connection structure to address the need for more efficient and faster construction in narrow and complex environments, without requiring on-site welding.
[0006] To solve the above problems, the technical solution adopted by the invention is as follows:
[0007] A tower crane attachment embedded sleeve connection structure includes a concrete body, embedded parts, and lugs. The embedded parts include a positioning steel plate, a sleeve, a connecting rod, and a tee connector. A sleeve is fixedly connected to one end of the positioning steel plate. A connecting hole is provided on the positioning steel plate, communicating with the sleeve. A connecting rod is provided at the lower end of the sleeve, with one end cooperating with the sleeve and the other end provided with a tee connector. A fixing rod is provided on the tee connector, and it is fixedly connected to the fixing rod. The positioning steel plate is flush with the end face of the concrete body. The sleeve, connecting rod, and tee connector are all embedded within the concrete body.
[0008] The principle behind this solution is:
[0009] The positioning steel plate is used to determine the position of the embedded parts during concrete pouring and to provide a plane for connection with the external structure. The sleeve is fixedly connected to the positioning steel plate to provide accurate positioning and support for subsequent connection operations. The connecting hole communicates with the sleeve to facilitate the insertion and fixing of subsequent bolts.
[0010] The connecting rod at the lower end of the sleeve serves to connect and transmit force, transferring external loads to the concrete body through the sleeve. The tee connector further enhances the stability and reliability of the connection, allowing the force to be distributed more evenly on the embedded parts.
[0011] During the concrete pouring process, the positioning steel plate is placed flush with the end face of the concrete body, and the sleeve, connecting rod and tee connector are embedded in the concrete body, so that the entire embedded part and the concrete form an integral whole, which can jointly bear the external load and tension, thereby achieving a stable connection for the tower crane attachment.
[0012] The beneficial effects of this solution are:
[0013] The attached pre-embedded sleeve connection structure forms an integrated load-bearing system by firmly embedding the pre-embedded parts into the concrete body. The positioning steel plate ensures the accuracy of the pre-embedded parts' position. The connection of the sleeve, connecting rod, and tee connector effectively disperses and transmits the load generated by the tower crane, greatly enhancing the stability of the connection structure and reducing the safety risks caused by unstable connections. The design of the connection hole and the prefabricated combination of the sleeve, connecting rod, tee connector, and fixing rod reduce the complexity and uncertainty of on-site construction, improve construction efficiency, shorten the construction cycle, and avoid the need for on-site welding. This makes construction more efficient and faster in narrow and complex environments.
[0014] Furthermore, the lug is connected to the sleeve by a connecting bolt that passes through the positioning steel plate and is threaded together. The tight fit between the connecting bolt and the thread in the sleeve effectively resists various dynamic loads and vibrations generated during tower crane operation, ensuring a firm and reliable connection between the lug and the embedded part. This guarantees the safety of the entire tower crane attachment system. When maintenance, repair, or replacement of parts is required for the tower crane attachment structure, the connecting bolt can be easily disassembled without causing excessive damage to the structure, thus improving the convenience and efficiency of maintenance.
[0015] Furthermore, both ends of the connecting rod are threaded, and the connecting rod is threadedly connected to the sleeve and the tee connector. Operators can easily complete the installation and disassembly operations by rotating the connecting rod, saving time and labor costs and improving construction efficiency. According to actual needs, the position of the connecting rod in the sleeve and the tee connector can be finely adjusted by rotating the connecting rod, so as to more accurately adapt to different construction conditions and requirements.
[0016] Furthermore, multiple reinforcing cages are installed inside the concrete body. These cages are positioned between the positioning steel plate and the tee connector, with connecting rods passing through them. The diameter of the reinforcing cage is smaller than that of the positioning steel plate. Placing the reinforcing cage between the positioning steel plate and the tee connector, and allowing the connecting rods to pass through, enables the reinforcing cage, embedded parts, and concrete to work together and share the load, improving the stability and reliability of the connection structure. The smaller diameter of the reinforcing cage effectively limits its movement range, ensuring that it remains in the predetermined position during concrete pouring and use, thus fully leveraging its reinforcing effect.
[0017] Furthermore, the positioning steel plate is perpendicular to the sleeve and welded to it. When the load generated by the tower crane acts on the positioning steel plate through the connecting rod, it can be transmitted to the sleeve and then to the concrete body through the shortest path, reducing the dispersion and loss of force and improving the load-bearing efficiency of the structure.
[0018] Furthermore, a waterproof sealing ring is provided at the connection between the connecting rod and the sleeve. This waterproof sealing ring is located at the end of the sleeve away from the positioning steel plate, which can effectively prevent moisture from seeping in from the connection between the connecting rod and the sleeve, thereby affecting the stability and durability of the connection. In addition, a good waterproof seal helps to maintain the preload between the connecting rod and the sleeve. The intrusion of moisture may cause the connecting rod and the sleeve to expand or contract, thereby affecting the stability of the preload.
[0019] Furthermore, a groove is provided at the end of the sleeve away from the positioning steel plate. The bottom of the groove has a triangular cross-section, which prevents the sealing ring from being pushed into the sleeve when the connecting rod is connected to the sleeve. At the same time, the triangular structure increases the contact area between the sealing ring and the sleeve, resulting in a more stable fit.
[0020] Furthermore, the sealing ring is a rubber sealing ring, which is triangular in shape at the end near the positioning steel plate and is connected to the groove inside the sleeve. The rubber material has good elasticity and sealing properties, and can tightly fit the gap between the connecting rod and the sleeve, effectively preventing the intrusion of moisture, dust and other impurities, providing a reliable sealing effect, and protecting the internal structure from corrosion and damage. The connection between the sealing ring and the groove inside the sleeve allows the sealing ring to be stably fixed inside the sleeve, making it difficult to shift or fall off. Under the vibration and external force during the operation of the tower crane, it can still maintain a good sealing position, ensuring long-term effective sealing performance. Attached Figure Description
[0021] Figure 1 A schematic diagram of the structure of this utility model;
[0022] Figure 2 A schematic diagram of the structure of this utility model;
[0023] Figure 3 This is a schematic diagram of the connection structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the connection structure between the sleeve and the connecting rod in this utility model. Detailed Implementation
[0026] The reference numerals in the accompanying drawings include: ear seat 1, concrete body 2, connecting bolt 3, positioning steel plate 4, sleeve 5, connecting rod 6, tee connector 7, fixing rod 8, reinforcing cage 9, connector head 10, waterproof sealing ring 11, groove 12, connecting hole 13, embedded part 14.
[0027] The basic implementation examples are as follows: Figure 1-5As shown, a tower crane attachment embedded sleeve connection structure includes a concrete body 2, an embedded part 14, and a lug 1. The embedded part 14 includes a positioning steel plate 4, a sleeve 5, a connecting rod 6, and a tee connector 7. The sleeve 5 is welded to one end of the positioning steel plate 4, making it perpendicular to the positioning steel plate 4. A connecting hole 13 communicating with the sleeve 5 is opened on the positioning steel plate 4. The lower end of the sleeve 5 is provided with the connecting rod 6, and the other end of the connecting rod 6 is provided with the tee connector 7. Another connecting rod 6 is fixed to the tee connector 7. This allows the load generated by the tower crane to be transmitted along the shortest path, reducing force loss and improving load-bearing efficiency. In use, the connecting rod 6, with threads at both ends, is threadedly connected to the sleeve 5 and the tee connector 7. This allows operators to easily complete installation and disassembly, saving time and labor costs and improving construction efficiency. The position of the connecting rod 6 can also be finely adjusted according to actual needs to adapt to different construction conditions.
[0028] After the tee connector 7 is fixedly connected to the connecting rod 6, the connecting rod 6 is fixedly connected to the tee connector 7, so that the connecting rod 6 and the fixing rod 8 are arranged crosswise, which is conducive to the concrete filling and wrapping the embedded parts 14, and enhances their bonding force with the concrete.
[0029] At the connection between the connecting rod 6 and the sleeve 5, a waterproof sealing ring 11 made of rubber is provided. The end of the waterproof sealing ring near the positioning steel plate 4 is triangular and is connected to the groove 12 provided at the end of the sleeve 5 away from the positioning steel plate 4. The rubber has good elasticity and sealing performance, which can tightly fit the gap, prevent moisture, dust and impurities from entering, and protect the internal structure from corrosion and damage. Under the vibration and external force of the tower crane operation, the waterproof sealing ring 11 can still maintain a good sealing position, ensuring long-term effective sealing performance. At the same time, the triangular structure of the groove 12 prevents the waterproof sealing ring 11 from being pushed into the sleeve 5 when the connecting rod 6 is connected, and increases the contact area between the waterproof sealing ring 11 and the sleeve 5, making the fit more stable.
[0030] Before concrete pouring, the pre-made embedded part 14 is placed in the mold. The positioning steel plate 4 is set on the end face of the concrete body 2 and kept flush. The sleeve 5, connecting rod 6 and tee connector 7 are all pre-embedded in the concrete body 2. At the same time, multiple steel cages 9 are set between the positioning steel plate 4 and the tee connector 7 inside the concrete body 2. The diameter of the steel cage 9 is smaller than that of the positioning steel plate 4. In this way, the steel cage 9, the embedded part 14 and the concrete share the load, which improves the stability and reliability of the structure and effectively limits the movement range of the steel cage 9. After threading one end of the connecting rod 6 to the sleeve 5, during the pre-embedding, one end of the connecting rod 6 is passed through the steel cage 9 and the tee connector 7 is threaded onto the connecting rod 6. Then the fixing rod 8 is passed through the tee connector 7 for fixation.
[0031] The lug 1 is connected to the positioning steel plate 4 by the connecting bolt 3 through the threaded engagement inside the sleeve 5. It can effectively resist the dynamic load and vibration during tower crane operation, ensuring the safety of the entire tower crane attachment system. When maintaining, repairing or replacing parts, it is convenient to disassemble the connecting bolt 3 without causing too much damage to the structure, thus improving the convenience and efficiency of maintenance.
[0032] In actual construction, when this tower crane attachment embedded sleeve 5 connection structure is applied to narrow and complex environments, its prefabricated assembly characteristics reduce the complexity and uncertainty of on-site construction, avoid on-site welding, improve construction efficiency and speed, and enable the tower crane attachment connection to be achieved quickly and stably, ensuring the safe operation of the tower crane.
[0033] The above are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A tower crane attachment embedded sleeve connection structure, characterized in that, The system includes a concrete body, embedded parts, and lugs. The embedded parts include a positioning steel plate, a sleeve, a connecting rod, and a tee connector. A sleeve is fixedly connected to one end of the positioning steel plate. A connecting hole is provided on the positioning steel plate, communicating with the sleeve. A connecting rod is provided at the lower end of the sleeve, with one end cooperating with the sleeve and the other end providing a tee connector. A fixing rod is provided on the tee connector, which is fixedly connected to it. The positioning steel plate is flush with the end face of the concrete body. The sleeve, connecting rod, and tee connector are all embedded within the concrete body.
2. The tower crane attachment embedded sleeve connection structure according to claim 1, characterized in that, The ear seat is connected to the positioning steel plate by a connecting bolt and a threaded connection inside the sleeve.
3. The tower crane attachment embedded sleeve connection structure according to claim 1, characterized in that, The two ends of the connecting rod are threaded, and the connecting rod is threadedly connected to the sleeve and the tee connector.
4. The tower crane attachment embedded sleeve connection structure according to claim 1, characterized in that, The concrete body contains multiple reinforcing cages, which are positioned between the positioning steel plate and the tee connector. The connecting rod passes through the reinforcing cage, and the diameter of the reinforcing cage is smaller than that of the positioning steel plate.
5. The tower crane attachment embedded sleeve connection structure according to claim 1, characterized in that, The positioning steel plate is arranged perpendicularly to the sleeve, and the positioning steel plate is welded to the sleeve.
6. The tower crane attachment embedded sleeve connection structure according to claim 1, characterized in that, A waterproof sealing ring is provided at the connection between the connecting rod and the sleeve, and the waterproof sealing ring is located at the end of the sleeve away from the positioning steel plate.
7. The tower crane attachment embedded sleeve connection structure according to claim 1, characterized in that, The sleeve has a groove at the end away from the positioning steel plate, and the bottom of the groove has a triangular cross-section.