PC steel bar connector

Abstract

The utility model discloses a PC steel bar connecting joint, which relates to the technical field of connecting joints, and comprises a PC steel bar, a separation block and a butt joint block, the PC steel bar is provided with butt joint threads, the inner wall of the separation block and the upper end of the inner wall of the butt joint block are also provided with butt joint threads, and the butt joint block is provided with butt joint threads. The separation block and the butt joint block are in threaded connection with one PC steel bar through butt joint threads respectively, separation threads are formed in the outer wall of the separation block, separation threads are also formed in the lower end of the inner wall of the butt joint block, and the separation block and the butt joint block are in threaded connection through the separation threads; according to the utility model, through the arrangement of the separation block and the butt joint block as well as the design of the butt joint threads and the separation threads, the rapid connection and separation between the PC steel bar and the connecting joints and between the connecting joints are realized, the mounting and dismounting processes are greatly simplified, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connection joints, in particular to a PC steel rod connection joint. Background Art

[0002] With the rapid development of modern construction technology, the requirements for building materials and connection methods are also increasing. Especially in key structures such as pile foundations, the quality and performance of connectors directly affect the safety and stability of the entire building.

[0003] Traditional PC steel bar connection methods mostly use welding or steel wire for connection and fixation. Although these methods meet the connection requirements to a certain extent, there are still some problems in practical applications, such as low construction efficiency, difficulty in ensuring connection quality, and difficulty in subsequent maintenance.

[0004] Therefore, the development of a new, separable PC steel rod connection joint is of great significance for improving the quality of construction projects, reducing construction costs, and enhancing the reliability of building structures. Utility Model Content

[0005] The purpose of the utility model is to provide a PC steel rod connection joint to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides a PC steel rod, a separation block and a docking block, the PC steel rod is provided with a docking thread, the inner wall of the separation block and the upper end of the inner wall of the docking block are also provided with a docking thread, the separation block and the docking block are respectively threadedly connected to a PC steel rod through the docking thread, the outer wall of the separation block is provided with a separation thread, the lower end of the inner wall of the docking block is also provided with a separation thread, and the separation block and the docking block are threadedly connected through the separation thread.

[0007] Furthermore, the specification of the docking thread is M27 / 2, and the specification of the separation thread is M35 / 2.

[0008] Furthermore, a locking assembly is provided between the separation block and the docking block, and the locking assembly includes a positioning cavity, which is opened in the docking block, and a limiting block is slidably connected in the positioning cavity. A connecting port is provided on the top surface of the positioning cavity, and a pin is provided on the top surface of the limiting block. A slot adapted to the pin is provided on the separation block.

[0009] Furthermore, one end of a spring is fixedly connected to the positioning cavity, and the other end of the spring is fixedly connected to the limiting block.

[0010] Furthermore, a sliding groove is provided on one side of the inner wall of the positioning cavity, and a slider is slidably connected in the sliding groove. One end of the slider is arranged on the outside of the docking block, and the other end of the slider passes through the positioning cavity from the sliding groove and is fixedly connected to one side of the limit block.

[0011] Furthermore, the positioning cavity is a rectangular groove, the limiting block is a rectangular block that can only slide vertically along the limiting block, and there are multiple positioning cavities, which are opened at equal intervals in a circular array with the center of the docking block as the axis.

[0012] Furthermore, a connecting groove is provided in the docking block, the connecting groove is communicated with each positioning cavity, and a connecting ring fixedly connected to each limiting block is provided in the connecting groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By setting up the separation block and the docking block, as well as the design of the docking thread and the separation thread, quick connection and separation between the PC steel rod and the connecting joint, as well as between the connecting joints, are achieved. This design greatly simplifies the installation and disassembly process and improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a PC steel rod connection joint;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of a separation block of a PC steel rod connection joint;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of a butt joint for a PC steel bar connection joint;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1. Separation block; 2. Docking block; 3. Docking thread; 4. Separation thread; 5. Positioning cavity; 6. Limit block; 7. Connecting port; 8. Latch; 9. Slot; 10. Spring; 11. Slide groove; 12. Slider; 13. Connecting groove; 14. Connecting ring. 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 Figure 1-4 The utility model provides a technical solution: it includes a PC steel rod, a separation block 1 and a docking block 2, a docking thread 3 is provided on the PC steel rod, and the inner wall of the separation block 1 and the upper end of the inner wall of the docking block 2 are also provided with a docking thread 3. The separation block 1 and the docking block 2 are respectively threadedly connected to a PC steel rod through the docking thread 3, the outer wall of the separation block 1 is provided with a separation thread 4, and the lower end of the inner wall of the docking block 2 is also provided with a separation thread 4. The separation block 1 and the docking block 2 are threadedly connected through the separation thread 4, the specification of the docking thread 3 is M27 / 2, and the specification of the separation thread 4 is M35 / 2.

[0022] By setting the separation block 1 and the docking block 2, and designing the docking thread 3 and the separation thread 4, quick connection and separation between the PC steel rod and the connecting joint, and between the connecting joints are achieved. This design greatly simplifies the installation and disassembly process and improves construction efficiency.

[0023] The design of the butt thread 3 ensures a firm connection between the PC steel rod and the connecting joint, effectively transferring load and force. At the same time, due to the self-locking characteristics of the threaded connection, the connection can remain stable when subjected to vibration or impact.

[0024] Since the connection joint is detachable, there is no need to replace the entire piece or perform complicated disassembly work when maintaining and replacing the PC steel rod. The connection joint can be easily separated for necessary repair or replacement by simply rotating the separation block 1 and the docking block 2 relative to each other.

[0025] Due to the use of standard threaded connection, the connection joint can be used with PC steel rods of various specifications and has strong versatility and flexibility.

[0026] Since the installation and disassembly process is simple and quick, the investment in labor and equipment is reduced, thereby reducing construction costs. At the same time, since the connection joints can be reused, the cost of long-term use is further reduced.

[0027] Example 2

[0028] Based on Example 1, refer to Figure 1 、 Figure 3 and Figure 4 A locking assembly is provided between the separation block 1 and the docking block 2, and the locking assembly includes a positioning cavity 5, the positioning cavity 5 is opened in the docking block 2, and a limiting block 6 is slidably connected in the positioning cavity 5. A connecting port 7 is provided on the top surface of the positioning cavity 5, and a latch 8 is provided on the top surface of the limiting block 6. A slot 9 adapted to the latch 8 is provided on the separation block 1, and one end of a spring 10 is fixedly connected to the positioning cavity 5, and the other end of the spring 10 is fixedly connected to the limiting block 6.

[0029] A sliding groove 11 is provided on one side of the inner wall of the positioning cavity 5, and a slider 12 is slidably connected in the sliding groove 11. One end of the slider 12 is arranged on the outside of the docking block 2, and the other end of the slider 12 passes through the sliding groove 11 into the positioning cavity 5 and is fixedly connected to one side of the limit block 6. The positioning cavity 5 is a rectangular groove, and the limit block 6 is a rectangular block that can only slide vertically along the limit block 6.

[0030] There are multiple positioning cavities 5, which are opened at equal intervals in a circular array with the center of the docking block 2 as the axis. A connecting groove 13 is also opened in the docking block 2, which is connected to each positioning cavity 5. A connecting ring 14 fixedly connected to each limit block 6 is provided in the connecting groove 13.

[0031] Through the design of the locking assembly, especially the combination of the positioning cavity 5, the limit block 6, the pin 8 and the slot 9, it is ensured that the separation block 1 and the docking block 2 cannot rotate radially after being firmly connected, thereby preventing the threaded connection between the separation block 1 and the docking block 2 from loosening due to the radial rotation of the separation block 1 or the docking block 2, thereby preventing the connection between the two PC steel bars from loosening, thereby enhancing the safety of the overall structure.

[0032] Through the design of the slider 12 and the connecting ring 14, when the slider 12 is toggled, the connecting ring 14 can be driven to move synchronously, thereby driving the other limit blocks 6 to descend synchronously, so that the staff can more conveniently operate the limit blocks 6, thereby achieving rapid locking and unlocking of the connector.

[0033] The plurality of positioning cavities 5 are formed in a circular array with equal spacing around the center of the docking block 2, so that the connector can disperse stress more evenly when subjected to force, thereby improving the stability of the overall structure.

[0034] Working principle:

[0035] First, the PC steel rod will be cut at the connection point using a grinding wheel cutter. After a smooth interface is cut out, the PC steel rod will be stripped and threaded according to the specifications of the butt thread 3 using a rib stripping and thread cutting machine. After the thread cutting is completed, a caliper will be used for inspection. Once confirmed to be correct, the preparation of the PC steel rod is completed.

[0036] In the initial state, the separation block 1 and the docking block 2 are in a separated state: when two PC steel rods need to be connected, first insert one end of the two PC steel rods into the docking threads 3 of the separation block 1 and the docking block 2 respectively, and rotate them to achieve a tight connection between the PC steel rods and the separation block 1 and the docking block 2.

[0037] Subsequently, the separation block 1 is docked with the docking block 2: since the outer wall of the separation block 1 and the lower end of the inner wall of the docking block 2 are provided with a separation thread 4, the two can be tightly connected by rotation. At this time, the slider 12 is pushed inward to make the limit block 6 retreat into the positioning cavity 5. When the PC steel rods are indirectly connected through the separation block 1 and the docking block 2, the slider 12 is released, and the pin 8 is pushed by the spring 10 to extend through the connecting port 7 opened on the top surface of the positioning cavity 5 and inserted into the slot 9 opened on the separation block 1. In this way, the separation block 1 and the docking block 2 are locked by the pin 8 and the slot 9 and cannot rotate radially, thereby preventing the threaded connection between the separation block 1 and the docking block 2 from loosening due to the radial rotation of the separation block 1 or the docking block 2, which in turn causes the connection between the two PC steel rods to loosen.

[0038] When it is necessary to separate the two PC steel rods: just push the slider 12 inward to make the limit block 6 return to the positioning cavity 5, and the pin 8 will then withdraw from the slot 9. At this time, the separation block 1 and the docking block 2 can be rotated to separate the separation thread 4 between them, thereby separating the two PC steel rods.

Claims

1. A PC steel bar connection joint, comprising a PC steel bar, characterized in that: The invention also includes a separation block (1) and a docking block (2), wherein a docking thread (3) is provided on the PC steel rod, and the inner wall of the separation block (1) and the upper end of the inner wall of the docking block (2) are also provided with a docking thread (3), and the separation block (1) and the docking block (2) are respectively threadedly connected to a PC steel rod through the docking thread (3), the outer wall of the separation block (1) is provided with a separation thread (4), and the lower end of the inner wall of the docking block (2) is also provided with a separation thread (4), and the separation block (1) and the docking block (2) are threadedly connected through the separation thread (4).

2. A PC steel bar connection joint according to claim 1, characterized in that: The specification of the docking thread (3) is M27 / 2, and the specification of the separation thread (4) is M35 / 2.

3. A PC steel bar connection joint according to claim 2, characterized in that: A locking assembly is provided between the separation block (1) and the docking block (2), the locking assembly comprising a positioning cavity (5), the positioning cavity (5) being provided in the docking block (2), a limiting block (6) being slidably connected in the positioning cavity (5), a communicating port (7) being provided on the top surface of the positioning cavity (5), a latch (8) being provided on the top surface of the limiting block (6), and a slot (9) being provided on the separation block (1) and being adapted to the latch (8).

4. A PC steel bar connection joint according to claim 3, characterized in that: One end of a spring (10) is fixedly connected to the positioning cavity (5), and the other end of the spring (10) is fixedly connected to the limiting block (6).

5. A PC steel bar connection joint according to claim 4, characterized in that: A sliding groove (11) is provided on one side of the inner wall of the positioning cavity (5), and a slider (12) is slidably connected in the sliding groove (11). One end of the slider (12) is arranged on the outside of the docking block (2), and the other end of the slider (12) penetrates into the positioning cavity (5) from the sliding groove (11) and is fixedly connected to one side of the limit block (6).

6. A PC steel bar connection joint according to claim 5, characterized in that: The positioning cavity (5) is a rectangular groove, and the limiting block (6) is a rectangular block that can only slide vertically along the limiting block (6). There are multiple positioning cavities (5), which are arranged in a circular array at equal intervals with the center of the docking block (2) as the axis.

7. A PC steel bar connection joint according to claim 6, characterized in that: The docking block (2) is further provided with a connecting groove (13), the connecting groove (13) being in communication with each positioning cavity (5), and a connecting ring (14) fixedly connected to each limiting block (6) being provided in the connecting groove (13).

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