Multi-section nested type self-adaptive variable-diameter steel bar connecting sleeve assembly

Abstract

The utility model discloses a multi-section nested type self-adaptive reducing steel bar connecting sleeve assembly, and relates to the technical field of steel bar connecting sleeves. The multi-section nested type self-adaptive variable-diameter steel bar connecting sleeve assembly comprises two steel bars, and sleeve mechanisms and fixing mechanisms are arranged on the outer walls of the two steel bars; the fixing mechanism is located outside the sleeve mechanism. The sleeve mechanism comprises an inner cylinder; the fixing mechanism comprises an extrusion part and a fixing part; the device has the technical effects that after the fixing mechanism sleeves the joint of the reinforcing steel bars with the inner cylinder, the extrusion ring and the extrusion blocks can be fixed by moving and extruding the arc-shaped blocks and the extrusion blocks through the extrusion ring and then rotating a screw rod to extrude the inner side surface of the fixing frame through a nut, so that the device is easy to operate by constructors, and the efficiency is improved; in the structural aspect, all the components are matched with one another, the fixing frame, the extrusion ring, the fixing plate, the screw and the nut form a stable system, and the structural strength and the connection reliability are enhanced.

Description

A multi-segment nested adaptive variable diameter rebar connection sleeve assembly Technical Field

[0001] This utility model relates to the field of rebar connection sleeve technology, specifically a multi-segment nested adaptive variable diameter rebar connection sleeve assembly. Background Technology

[0002] In the field of construction engineering, steel reinforcement connections are a core component ensuring structural safety and stability, and the reliability and efficiency of the technology are of paramount importance. With the continuous advancement of the construction industry, increasingly stringent requirements have been placed on the quality, efficiency, and adaptability of steel reinforcement connections.

[0003] Axial cold-pressing connection of reinforcing bars is a mechanical connection method that uses a cold extrusion press to deform a connecting sleeve, thereby bonding the sleeve with the two inserted reinforcing bars as one unit. Through extrusion, the sleeve undergoes plastic deformation, tightly gripping the transverse and longitudinal ribs of the reinforcing bars, thus enabling the transfer of force between the two reinforcing bars;

[0004] During the compression operation of traditional rebar coupling sleeves, the inner cylinder often moves on the surface of the rebar. This phenomenon not only makes it difficult to guarantee the connection accuracy between the rebar and the inner cylinder, thus affecting the overall quality of the rebar connection, but also may cause uneven stress distribution at the connection point, reducing the reliability of the connection. Therefore, a multi-segment nested adaptive variable diameter rebar coupling sleeve assembly is proposed. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a multi-segment nested adaptive variable diameter rebar connecting sleeve assembly. This solves the problem that when the inner cylinder is subjected to extrusion operation, it often moves on the surface of the rebar. This phenomenon not only makes it difficult to guarantee the connection accuracy between the rebar and the inner cylinder, thus affecting the overall quality of the rebar connection, but may also cause uneven stress distribution at the connection point, reducing the reliability of the connection.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes two reinforcing bars, and each of the two reinforcing bars is provided with a sleeve mechanism and a fixing mechanism on its outer wall;

[0009] The fixing mechanism is located outside the sleeve mechanism;

[0010] The sleeve mechanism includes an inner cylinder;

[0011] The fixing mechanism includes a pressing part and a fixing part;

[0012] The extrusion section includes multiple arc-shaped blocks and multiple extrusion blocks, and the fixing section includes an extrusion ring and a fixing frame;

[0013] The inner surfaces of the plurality of extrusion blocks slide through the outer wall of the inner cylinder and extend to the inner side of the inner cylinder. Multiple arc-shaped blocks are fixedly disposed on the outer walls of the plurality of extrusion blocks. The inner surface of the extrusion ring is slidably connected to the outer wall of the inner cylinder, and the inner surface of the extrusion ring is slidably connected to the outer walls of the multiple arc-shaped blocks.

[0014] Preferably, the inner cylinder is slidably fitted with two outer cylinders, and the inner sides of the two outer cylinders are press-fitted against the outer wall of the inner cylinder.

[0015] Preferably, the side of the fixing frame near the inner cylinder is fixedly connected to the outer wall of the inner cylinder, the inner side of the fixing frame is slidably connected to the inner side of the extrusion ring, and a fixing plate is fixedly provided on the outer wall of the extrusion ring, with the fixing plate located above the fixing frame.

[0016] Preferably, a screw is provided through the outer wall of the fixing plate and extends to the inner side of the fixing frame, and a nut is fixedly provided on the outer wall of the fixing plate, with the inner side of the nut threadedly connected to the outer wall of the screw.

[0017] Preferably, a guide rail is fixedly provided on the outer wall of the inner cylinder, and the outer wall of the guide rail is slidably connected to the inner side of the extrusion ring.

[0018] Preferably, the outer wall of the inner cylinder is provided with two sets of adjustment grooves.

[0019] (III) Beneficial Effects

[0020] This utility model provides a multi-segment nested adaptive variable diameter rebar connecting sleeve assembly. It has the following beneficial effects:

[0021] (I) This multi-segment nested adaptive variable diameter rebar connecting sleeve assembly, after the inner cylinder is fitted onto the rebar connection, the pressing mechanism moves the pressing arc block and the pressing block through the pressing ring, and then the screw is rotated to use the nut to press the inner side of the fixing frame to fix the pressing ring and the pressing block. It is easy for construction personnel to use and improves efficiency. In terms of structure, the components cooperate with each other. The fixing frame, pressing ring, fixing plate, screw and nut form a stable system, which enhances the structural strength and connection reliability. At the same time, the guide rail on the outer wall of the inner cylinder is slidably connected to the inner side of the pressing ring, which ensures the precise movement trajectory of the pressing ring, so that the pressing block and the rebar are in close contact and the force is uniform, which improves the quality of the rebar connection and ensures that the inner cylinder will not move when it is pressed.

[0022] (II) This multi-segment nested adaptive variable diameter rebar connecting sleeve assembly has two sets of adjustment grooves on the outer wall of the inner cylinder in the sleeve mechanism, which enable it to adapt to variable diameter, can bite different types of rebar, improve the versatility of the sleeve, reduce costs and improve construction efficiency; after the inner cylinder and the two interference-fitted outer cylinders are pressed by a cold extrusion machine, the inner side of the inner cylinder and the surface of the rebar are tightly bitten together to form a stable connection structure, which effectively resists external forces and ensures the safety of the building structure; and the interference fit between the inner cylinder and the outer cylinder and the deformation biting after the cold extrusion of the outer cylinder realize the efficient transfer of stress between the rebar and the sleeve, avoid stress concentration, improve the load-bearing capacity of the connection part, and extend the service life of the building structure. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 is a structural schematic diagram of the fixing mechanism of this utility model;

[0025] Figure 3 is a schematic diagram of the screw in the fixing mechanism of this utility model;

[0026] Figure 4 is a schematic diagram of the internal structure of the sleeve mechanism of this utility model;

[0027] Figure 5 is an enlarged structural schematic diagram of area A in Figure 3 of this utility model.

[0028] In the diagram: 1. Reinforcing bar; 2. Sleeve mechanism; 21. Inner cylinder; 22. Outer cylinder; 23. Adjustment groove; 3. Fixing mechanism; 31. Guide rail; 32. Extrusion ring; 33. Arc block; 34. Extrusion block; 35. Fixing frame; 36. Fixing plate; 37. Screw; 38. Nut. Detailed Implementation

[0029] 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.

[0030] Please refer to Figures 1-5. This utility model provides a technical solution: including two reinforcing bars 1, and each of the two reinforcing bars 1 is provided with a sleeve mechanism 2 and a fixing mechanism 3 on its outer wall;

[0031] The fixing mechanism 3 is located outside the sleeve mechanism 2;

[0032] The sleeve mechanism 2 includes an inner cylinder 21;

[0033] The fixing mechanism 3 includes a pressing part and a fixing part;

[0034] The extrusion section includes multiple arc-shaped blocks 33 and multiple extrusion blocks 34, and the fixing section includes an extrusion ring 32 and a fixing frame 35;

[0035] Multiple extrusion blocks 34 have their inner sides slidably penetrating the outer wall of the inner cylinder 21 and extending to the inner side of the inner cylinder 21. Multiple arc-shaped blocks 33 are fixedly installed on the outer walls of the multiple extrusion blocks 34. The inner side of the extrusion ring 32 is slidably connected to the outer wall of the inner cylinder 21. The inner side of the extrusion ring 32 is slidably connected to the outer walls of the multiple arc-shaped blocks 33. The side of the fixing frame 35 near the inner cylinder 21 is fixedly connected to the outer wall of the inner cylinder 21. The inner side of the fixing frame 35 is slidably connected to the inner side of the extrusion ring 32. A fixing plate 36 is fixedly installed on the outer wall of the extrusion ring 32. The fixing plate 36 is located above the fixing frame 35. A screw 37 is penetrating the outer wall of the fixing plate 36 and extending to the inner side of the fixing frame 35. A nut 38 is fixedly installed on the outer wall of the fixing plate 36. The inner side of the nut 38 is threadedly connected to the outer wall of the screw 37. A guide rail 31 is fixedly installed on the outer wall of the inner cylinder 21. The outer wall of the guide rail 31 is slidably connected to the inner side of the extrusion ring 32.

[0036] Two outer cylinders 22 are slidably sleeved on the outer wall of the inner cylinder 21. The inner sides of the two outer cylinders 22 are press-fitted against the outer wall of the inner cylinder 21. Two sets of adjustment grooves 23 are provided on the outer wall of the inner cylinder 21.

[0037] In use, align the two steel bars 1, and then fit the inner cylinder 21 onto the connection between the two steel bars 1. After fitting, control the compression ring 32 to move. When the compression ring 32 moves, it can compress multiple arc-shaped blocks 33. After being compressed, the inner sides of multiple compression blocks 34 can be pressed and contacted with the connection between the two steel bars 1. After compression, manually control the screw 37 to rotate. When the screw 37 rotates, the inner side of the fixing frame 35 can be compressed through the nut 38. When the inner side of the fixing frame 35 is compressed, the compression ring 32 can be fixed. After the compression ring 32 is fixed, the multiple compression blocks 34 can be fixed. After the multiple compression blocks 34 are fixed, the inner cylinder 21 and the two steel bars 1 can be fixed.

[0038] After fixing, the two outer cylinders 22 are fitted onto both ends of the inner cylinder 21. After the fitting is completed, the two outer cylinders 22 are pressed by a cold extrusion press. When the two outer cylinders 22 are pressed, the inner side of the inner cylinder 21 can be engaged with the surface of the two steel bars. After the inner cylinder 21 is engaged with the outer wall of the two steel bars 1, a stable connection can be made between the two steel bars 1. By setting two sets of adjustment grooves 23, the inner cylinder can engage with two steel bars 1 of different types.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-segment nested adaptive variable diameter rebar connecting sleeve assembly, comprising two rebars (1), characterized in that: Both of the two steel bars (1) are provided with a sleeve mechanism (2) and a fixing mechanism (3) on their outer walls; the fixing mechanism (3) is located outside the sleeve mechanism (2); the sleeve mechanism (2) includes an inner cylinder (21); the fixing mechanism (3) includes a pressing part and a fixing part; the pressing part includes multiple arc-shaped blocks (33) and multiple pressing blocks (34), and the fixing part includes a pressing ring (32) and a fixing frame (35); the inner sides of the multiple pressing blocks (34) slide through the outer wall of the inner cylinder (21) and extend to the inner side of the inner cylinder (21), and multiple arc-shaped blocks (33) are fixedly provided on the outer walls of the multiple pressing blocks (34), the inner side of the pressing ring (32) is slidably connected to the outer wall of the inner cylinder (21), and the inner side of the pressing ring (32) is slidably connected to the outer walls of the multiple arc-shaped blocks (33).

2. The multi-segment nested adaptive variable diameter rebar connecting sleeve assembly according to claim 1, characterized in that: The inner cylinder (21) is slidably fitted with two outer cylinders (22), and the inner sides of the two outer cylinders (22) are press-fitted against the outer wall of the inner cylinder (21).

3. The multi-segment nested adaptive variable diameter rebar connecting sleeve assembly according to claim 1, characterized in that: The side of the fixed frame (35) near the inner cylinder (21) is fixedly connected to the outer wall of the inner cylinder (21). The inner side of the fixed frame (35) is slidably connected to the inner side of the extrusion ring (32). A fixed plate (36) is fixedly provided on the outer wall of the extrusion ring (32). The fixed plate (36) is located above the fixed frame (35).

4. The multi-segment nested adaptive variable diameter rebar connecting sleeve assembly according to claim 3, characterized in that: A screw (37) is provided through the outer wall of the fixing plate (36) and extends to the inner side of the fixing frame (35). A nut (38) is fixedly provided on the outer wall of the fixing plate (36), and the inner side of the nut (38) is threadedly connected to the outer wall of the screw (37).

5. The multi-segment nested adaptive variable diameter rebar connecting sleeve assembly according to claim 1, characterized in that: The outer wall of the inner cylinder (21) is fixedly provided with a guide rail (31), and the outer wall of the guide rail (31) is slidably connected to the inner side of the extrusion ring (32).

6. The multi-segment nested adaptive variable diameter rebar connecting sleeve assembly according to claim 2, characterized in that: The outer wall of the inner cylinder (21) is provided with two sets of adjustment grooves (23).

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