PC steel connecting structure
Through the design of the clamping components of the octagonal jacket and inner sleeve, the loosening problem caused by shaking at the concrete pile connection is solved, and the effect of stable connection and environmentally friendly construction is achieved.
Patent Information
- Application Number
- CN202422481774.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-14
AI Technical Summary
The threaded connections of concrete piles are easily shaken due to external factors, which leads to loosening of the connections, which poses safety hazards.
The threaded connection between the octagonal jacket and the octagonal inner sleeve is adopted, combined with the clamping assembly, including the locking sleeve, locking groove and spring design, to ensure that the octagonal inner sleeve cannot rotate radially when the outside world shakes, and reduce the possibility of thread loosening through the limiting effect of the locking sleeve.
It improves the stability and safety of the connection, reduces the possibility of thread loosening, and is simple to install and disassemble, reducing pollution and construction difficulty during welding.
Smart Images
Figure CN223176719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of concrete piles, in particular to a PC steel connection structure. Background Art
[0002] In current construction projects, concrete piles are important load-bearing structures, and their stability and bearing capacity are crucial to the quality and safety of the overall project. Especially in the construction of large-scale infrastructure, bridges and high-rise buildings, the connection technology of concrete piles is particularly important.
[0003] Since the length of the concrete pile needs to be adjusted according to the construction environment, design requirements, etc., in order to facilitate the adjustment of the concrete pile, two threaded sleeves that are threadedly connected to the PC steel bars and can be threadedly connected to each other are usually used to connect the PC steel bars in the concrete pile. Since the threaded sleeves are threaded with the PC steel bars and are also threadedly connected to each other, they may shake due to external factors, resulting in an increased possibility of loosening of the threads at the connection, thus posing certain safety hazards.
[0004] In view of this, this application is hereby filed. Utility Model Content
[0005] The purpose of the present invention is to provide a PC steel connection structure to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the utility model provides two PC steel bars, which are threadedly connected to an octagonal outer sleeve and an octagonal inner sleeve respectively. A clamping assembly is provided between the octagonal outer sleeve and the octagonal inner sleeve. The clamping assembly includes a locking sleeve. A locking groove is provided in the octagonal outer sleeve. A locking block is slidably connected to the locking groove. The bottom surface of the locking sleeve is connected to the locking block, and the inner side wall of the locking sleeve is engaged with the octagonal inner sleeve.
[0007] Furthermore, the locking groove is a regular octagonal groove, and a sliding groove is opened at the center of the eight side walls of the locking groove. A slider is slidably connected in the sliding groove, and the two ends of the slider are fixedly connected to the side surface of the locking block and the bottom surface of the locking sleeve respectively.
[0008] Furthermore, a plurality of springs are provided in the locking groove, one end of the spring is fixedly connected to the locking groove, and the other end of the spring is fixedly connected to the locking block.
[0009] Furthermore, there are eight springs, and the eight springs are respectively arranged at the corners between the eight inner walls of the locking groove.
[0010] Furthermore, the locking sleeve is provided with anti-skid patterns, and there are a plurality of anti-skid patterns which are provided on the outer wall of the locking sleeve at equal intervals in a linear array.
[0011] Furthermore, an internal thread is provided on the lower end of the inner wall of the octagonal outer sleeve and the inner wall of the octagonal inner sleeve, and an internal thread is also provided on the connection ports of the two PC steel bars. The two PC steel bars are respectively threadedly connected to the octagonal outer sleeve and the octagonal inner sleeve through the internal thread, and the specification of the internal thread is M27 / 3.
[0012] Furthermore, the outer wall of the octagonal inner sleeve and the upper end of the inner wall of the octagonal outer sleeve are both provided with external threads, and the octagonal outer sleeve and the octagonal inner sleeve are threadedly connected via the external threads.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] By setting up the clamping assembly, when the device shakes due to external factors, the octagonal inner sleeve will be limited by the locking sleeve. Since the locking sleeve can only slide vertically along the locking groove in the octagonal outer sleeve, the octagonal inner sleeve limited by the locking sleeve cannot rotate radially, thereby reducing the possibility of the device shaking due to external factors and causing the thread at the connection to loosen. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a PC steel connection structure;
[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of an octagonal inner sleeve of a PC steel connection structure;
[0017] Figure 3 This is a front view of an octagonal jacket of a PC steel connection structure;
[0018] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.
[0019] In the figure: 1. Octagonal outer sleeve; 2. Octagonal inner sleeve; 3. External thread; 4. Internal thread; 5. Locking groove; 6. Locking block; 7. Slide groove; 8. Slider; 9. Locking sleeve; 10. Spring; 11. Anti-slip pattern. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figures 1-4, the utility model provides a technical solution: including two PC steel bars, the PC steel bars are respectively threadedly connected with the octagonal outer sleeve 1 and the octagonal inner sleeve 2, the octagonal outer sleeve 1 and the octagonal inner sleeve 2 are threadedly connected, internal thread taps 4 are provided on the lower end of the inner wall of the octagonal outer sleeve 1 and on the inner wall of the octagonal inner sleeve 2, internal thread taps 4 are also provided at the connection ports of the two PC steel bars, the two PC steel bars are respectively threadedly connected with the octagonal outer sleeve 1 and the octagonal inner sleeve 2 through the internal thread taps 4, the specification of the internal thread tap 4 is M27 / 3, external thread taps 3 are provided on the outer wall of the octagonal inner sleeve 2 and the upper end of the inner wall of the octagonal outer sleeve 1, and the octagonal outer sleeve 1 and the octagonal inner sleeve 2 are threadedly connected through the external thread taps 3.
[0022] Through the design of the internal thread tap 4 and the external thread tap 3, the tight connection between the PC steel bar and the octagonal outer sleeve 1, the octagonal inner sleeve 2, and between the octagonal outer sleeve 1 and the octagonal inner sleeve 2 is realized. This connection method has high strength and stability, can withstand large tensile force and torque, and ensures the reliability and safety of the structure.
[0023] The threaded connection method makes the installation and disassembly process simple and convenient. Just align the corresponding parts with the thread taps and rotate to achieve connection or disconnection. This connection method does not require complex tools or special skills, reduces the difficulty of installation and disassembly, is convenient for construction, improves work efficiency, and also prevents the pollution of the atmosphere caused by the waste gas generated during the welding process. The installation and adjustment process is more energy-saving and environmentally friendly.
[0024] A clamping component is arranged between the octagonal outer sleeve 1 and the octagonal inner sleeve 2. The clamping component includes a locking sleeve 9. A locking groove 5 is provided in the octagonal outer sleeve 1. A locking block 6 is slidably connected in the locking groove 5. The bottom surface of the locking sleeve 9 is connected with the locking block 6. The inner side wall of the locking sleeve 9 is engaged with the octagonal inner sleeve 2. The locking groove 5 is a regular octagon groove. Sliding grooves 7 are provided at the centers of the eight side walls of the locking groove 5. Sliders 8 are slidably connected in the sliding grooves 7. The two ends of the slider 8 are respectively fixedly connected with the side surface of the locking block 6 and the bottom surface of the locking sleeve 9.
[0025] By adopting the above design, when the device shakes due to external factors, the octagonal inner sleeve 2 will be limited by the locking sleeve 9. Because the locking sleeve 9 can only slide vertically along the locking groove 5 in the octagonal outer sleeve 1, the octagonal inner sleeve 2 limited by the locking sleeve 9 cannot rotate radially, thereby reducing the possibility of the situation that the thread at the connection loosens due to the device shaking caused by external factors.
[0026] A spring 10 is arranged in the locking groove 5. One end of the spring 10 is fixedly connected to the locking groove 5, and the other end of the spring 10 is fixedly connected to the locking block 6. There are eight springs 10, and the eight springs 10 are respectively arranged at the corners between the eight inner walls of the locking groove 5.
[0027] By adopting the above design, under the non - interference of human force, the locking sleeve 9 will always be tightly clamped on the octagonal inner sleeve 2 driven by the spring 10, thereby making the connection relationship between the octagonal outer sleeve 1 and the octagonal inner sleeve 2 more stable.
[0028] In addition, anti - slip grooves 11 are formed on the locking sleeve 9. There are multiple anti - slip grooves 11, which are linearly arrayed and equally spaced on the outer wall of the locking sleeve 9.
[0029] By adopting the above design, when the staff holds and presses down the locking sleeve 9, the contact area between the palm and the locking sleeve 9 is larger, and thus the force application process is more convenient.
[0030] Working principle:
[0031] During use, first, use a grinding wheel cutting machine to cut at the connection part of the PC steel bar. After cutting out a flat interface, use a rib - peeling and thread - cutting machine to peel the ribs and cut threads for the PC steel bar according to the specifications of the internal connection thread 4. After thread - cutting is completed, use a snap gauge for inspection. After confirming that there is no error, the preparation work of the PC steel bar can be completed.
[0032] During installation, first, connect the octagonal outer sleeve 1 and the octagonal inner sleeve 2 to the corresponding PC steel bars respectively through the internal connection thread 4. Then, hold and press down the locking sleeve 9 so that the locking sleeve 9 is lower than the surface of the octagonal outer sleeve 1. At this time, the spring 10 will be compressed and deformed to accumulate elastic potential energy. Then, hold the octagonal inner sleeve 2, align the external connection threads 3 on the octagonal outer sleeve 1 and the octagonal inner sleeve 2, and thread - connect the octagonal outer sleeve 1 and the octagonal inner sleeve 2 through the external connection thread 3. After the connection is completed, release the locking sleeve 9, and the spring 10 will convert the previously accumulated elastic potential energy into kinetic energy, driving the locking sleeve 9 to reset, so that the locking sleeve 9 rises and is clamped with the lower end of the octagonal inner sleeve 2, thereby completing the installation of the device.
[0033] When the device shakes due to external factors, the octagonal inner sleeve 2 will be limited by the locking sleeve 9. Since the locking sleeve 9 can only slide vertically along the locking groove 5 in the octagonal outer sleeve 1, the octagonal inner sleeve 2 limited by the locking sleeve 9 cannot rotate radially, thereby reducing the possibility of the situation that the connection thread becomes loose due to the device shaking caused by external factors.
Claims
1. A PC steel connection structure, comprising two PC steel bars, the PC steel bars are respectively threadedly connected to an octagonal outer sleeve (1) and an octagonal inner sleeve (2), and is characterized in that: A clamping component is arranged between the octagonal outer sleeve (1) and the octagonal inner sleeve (2). The clamping component includes a locking sleeve (9). A locking groove (5) is formed in the octagonal outer sleeve (1). A locking block (6) is slidably connected in the locking groove (5). The bottom surface of the locking sleeve (9) is connected to the locking block (6). The inner side wall of the locking sleeve (9) is engaged with the octagonal inner sleeve (2).
2. The PC steel connection structure according to claim 1, characterized in that: The locking groove (5) is a regular octagonal groove. A sliding groove (7) is formed at the center of each of the eight side walls of the locking groove (5). A slider (8) is slidably connected in the sliding groove (7). Two ends of the slider (8) are respectively fixedly connected to the side surface of the locking block (6) and the bottom surface of the locking sleeve (9).
3. A PC steel connection structure according to claim 2, characterized in that: A plurality of springs (10) are arranged in the locking groove (5). One end of each spring (10) is fixedly connected to the locking groove (5), and the other end of each spring (10) is fixedly connected to the locking block (6).
4. A PC steel connection structure according to claim 3, characterized in that: There are eight springs (10), and the eight springs (10) are respectively arranged at the corners between the eight inner walls of the locking groove (5).
5. A PC steel connection structure according to claim 4, characterized in that: Anti-slip grooves (11) are formed on the locking sleeve (9). There are a plurality of anti-slip grooves (11), which are arranged at equal intervals in a linear array on the outer wall of the locking sleeve (9).
6. The PC steel connection structure according to claim 5, characterized in that: Internal threads (4) are formed on the lower end of the inner wall of the octagonal outer sleeve (1) and the inner wall of the octagonal inner sleeve (2). Internal threads (4) are also formed at the connection ports of the two PC steel bars. The two PC steel bars are respectively threadedly connected to the octagonal outer sleeve (1) and the octagonal inner sleeve (2) through the internal threads (4). The specification of the internal threads (4) is M27 / 3.
7. The PC steel connection structure according to claim 6, characterized in that: External threads (3) are formed on the outer wall of the octagonal inner sleeve (2) and the upper end of the inner wall of the octagonal outer sleeve (1). The octagonal outer sleeve (1) and the octagonal inner sleeve (2) are threadedly connected through the external threads (3).