Steel bar threaded sleeve assembly structure

By designing a rebar threaded sleeve assembly structure, adjusting the position of the sleeve body using sliding rods and bidirectional screws, and strengthening the connection by reinforcing arc plates, the problem of non-adjustable rebar length was solved, improving construction efficiency and connection strength.

CN224063803UActive Publication Date: 2026-03-31CCCC SOUTHWEST URBAN DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-29
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In existing rebar connection technologies, the length of the rebar cannot be adjusted, resulting in low construction efficiency and insufficient connection strength, making it difficult to meet the high requirements of modern engineering.

Method used

A rebar threaded sleeve assembly structure is designed. The sleeve body can be moved and adjusted through the cooperation of a sliding rod and a two-way screw. Combined with the fixed connection between the reinforcing arc plate and the rebar body, the connection strength is enhanced.

Benefits of technology

It enables flexible adjustment of the rebar connection length, improves construction efficiency, enhances connection strength, and meets the high-efficiency and reliable requirements of modern engineering.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel bar threaded sleeves, and discloses a steel bar threaded sleeve assembling structure which comprises a connecting body, two sliding rods are fixedly connected to the inner wall of the connecting body, limiting seats are slidably connected to the upper sides and the lower sides of the outer walls of the sliding rods, and adjusting assemblies are arranged on the inner walls of the limiting seats. Sleeve bodies are arranged on the inner walls of the left side and the right side of the connecting body correspondingly, steel bar bodies are in threaded connection with the inner walls of the sleeve bodies correspondingly, reinforcing arc plates are arranged on the upper sides and the lower sides of the outer walls of the sleeve bodies and the steel bar bodies correspondingly, and two fixing plates are fixedly connected to the front sides and the rear sides of the reinforcing arc plates correspondingly. The fixing plates on the upper side and the lower side are connected through bolts. According to the reinforcing steel bar connecting device, the sleeve bodies on the two sides can move outwards, so that the connecting length of the reinforcing steel bar is adjusted according to actual requirements, and the reinforcing arc plates are fixed to the outer walls of the sleeve bodies and the outer walls of the reinforcing steel bar bodies, so that connection between the reinforcing steel bar bodies and the sleeve bodies is machined.
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Description

Technical Field

[0001] This utility model relates to the field of rebar threaded sleeve technology, and in particular to a rebar threaded sleeve assembly structure. Background Technology

[0002] With the continuous expansion of modern engineering projects, the increasing height of buildings, and the growing span of bridges, greater challenges are being placed on rebar connection technology. On the one hand, engineering structures need to withstand greater loads and complex stresses, requiring rebar connections to possess higher strength and stability. On the other hand, shorter construction cycles, more diverse construction environments, and the demands for energy conservation and environmental protection all necessitate the development of an efficient, reliable, and adaptable rebar connection technology. The rebar threaded sleeve assembly structure has emerged to address these challenges. With its unique design and working principle, it effectively solves the shortcomings of traditional connection methods, providing a superior rebar connection solution for engineering construction.

[0003] A search revealed a semi-straight threaded, semi-compression adjustable rebar sleeve (publication number CN213774126U). This sleeve includes a connecting sleeve body, which is connected end-to-end with the main structural rebar to form a closed loop and is installed inside the tunnel. The connecting sleeve body is a cylindrical tubular structure with a compression end at one inner end and a straight thread end at the other inner end. The free end of the main structural rebar on one side of the connecting sleeve body is inserted into the compression end. A fastening nut is provided on the outer wall of the connection between the straight thread end of the connecting sleeve and the main structural rebar. This invention enables the connection between the threaded part and the straight thread end of the connecting sleeve. The main structural rebar on the other side of the low side wall is connected to the compression end of the connecting sleeve through external force, effectively avoiding the problems of excessive protective layer thickness caused by excessive rebar length and exposed rebar in the lining caused by excessive rebar length.

[0004] Based on the aforementioned patent, as mentioned in its background technology, it is necessary to develop a sleeve with a semi-straight thread and semi-extrusion adjustable steel bar length to ensure reliable connection of steel bars in tunnel structures while ensuring appropriate length, thereby guaranteeing the operational safety of tunnel structures. In response to this technical problem, this application proposes a steel bar threaded sleeve assembly structure. Utility Model Content

[0005] The purpose of this utility model is to solve the shortcomings of threaded sleeves in that the length of the reinforcing bar cannot be adjusted. It proposes a threaded sleeve assembly structure for reinforcing bars. By allowing the sleeve bodies on both sides to move outward, the connection length of the reinforcing bars can be adjusted according to actual needs, which greatly improves construction efficiency and saves construction time and costs. Furthermore, by fixing the reinforcing arc plate to the outer wall of the sleeve body and the reinforcing bar body, the connection between the reinforcing bar body and the sleeve body is strengthened, thereby improving the connection strength.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rebar threaded sleeve assembly structure, comprising a connecting body, two sliding rods fixedly connected to the inner wall of the connecting body, limit seats slidably connected to the upper and lower sides of the outer wall of the sliding rods, an adjustment component provided on the inner wall of the limit seats, sleeve bodies provided on the inner walls of the left and right sides of the connecting body, rebar bodies threadedly connected to the inner walls of the sleeve bodies, reinforcing arc plates provided on the upper and lower sides of the outer walls of the sleeve bodies and the rebar bodies, two fixing plates fixedly connected to the front and rear sides of the reinforcing arc plates, the upper and lower fixing plates connected by bolts, and the reinforcing arc plates connected to the sleeve bodies and the rebar bodies respectively by snap-fit ​​components.

[0007] Furthermore, the adjusting assembly includes a bidirectional lead screw rotatably connected to the inner wall of the connecting body, and the inner wall of the limiting seat is threadedly connected to the outer wall of the bidirectional lead screw.

[0008] Furthermore, a slot is formed at the top of the bidirectional lead screw to drive the bidirectional lead screw to rotate.

[0009] Furthermore, the outer wall of the limiting seat is provided with multiple fixing grooves, and the inner wall of the sleeve body is fixedly connected with a fixing ring, the fixing ring being in shape to match the fixing groove.

[0010] Furthermore, a limiting ring is fixedly connected to the top end of the sleeve body, and the outer wall of the limiting ring is sleeved on the inner wall of the connecting body.

[0011] Furthermore, the snap-fit ​​assembly includes a groove formed on the inner wall of the reinforced arc plate, and protrusions are fixedly connected to both sides of the outer wall of the sleeve body, the protrusions matching the shape of the groove.

[0012] Furthermore, the inner wall of the reinforced arc plate is provided with multiple transverse grooves, and multiple transverse bars are fixedly connected to both sides of the outer wall of the main steel bar, with the transverse grooves matching the shape of the transverse bars.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, by rotating the bidirectional lead screw, the limiting seats on both sides are brought closer to the center, thereby allowing the sleeve bodies on both sides to move outward. This enables the adjustment of the rebar connection length according to actual needs, greatly improving construction efficiency and saving construction time and costs.

[0015] 2. In this utility model, by fixing the reinforcing arc plate to the outer wall of the sleeve body and the reinforcing bar body, and connecting the reinforcing arc plate to the sleeve body and the reinforcing bar body respectively, the connection between the reinforcing bar body and the sleeve body is strengthened and the connection strength is improved. Attached Figure Description

[0016] Figure 1 This is a perspective view of a steel bar threaded sleeve assembly structure proposed in this utility model;

[0017] Figure 2 This is a development diagram of the fixed arc plate of the rebar threaded sleeve assembly structure proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing arc plate of the rebar threaded sleeve assembly structure proposed in this utility model;

[0019] Figure 4 This is a cross-sectional view of the connection body of a steel bar threaded sleeve assembly structure proposed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the main body of a steel bar threaded sleeve assembly structure proposed in this utility model.

[0021] Legend:

[0022] 1. Connecting body; 2. Sliding rod; 3. Limiting seat; 4. Two-way screw; 5. Slot; 6. Fixing groove; 7. Sleeve body; 8. Limiting ring; 9. Fixing ring; 10. Reinforcing bar body; 11. Protrusion; 12. Horizontal bar; 13. Reinforcing arc plate; 14. Fixing plate; 15. Protruding groove; 16. Horizontal groove. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1 , Figure 4 and Figure 5This utility model provides an embodiment of a rebar threaded sleeve assembly structure, comprising a connecting body 1, two sliding rods 2 fixedly connected to the inner wall of the connecting body 1, limit seats 3 slidably connected to the upper and lower sides of the outer wall of the sliding rods 2, a bidirectional screw 4 rotatably connected to the inner wall of the connecting body 1, the inner wall of the limit seat 3 threadedly connected to the outer wall of the bidirectional screw 4, sleeve bodies 7 provided on the left and right inner walls of the connecting body 1, a slot 5 opened at the top of the bidirectional screw 4 for driving the bidirectional screw 4 to rotate, multiple fixing slots 6 opened on the outer wall of the limit seat 3, a fixing ring 9 fixedly connected to the inner wall of the sleeve body 7, the fixing ring 9 matching the shape of the fixing slot 6, a limit ring 8 fixedly connected to the top of the sleeve body 7, the outer wall of the limit ring 8 slidably connected to the inner wall of the connecting body 1.

[0025] Specifically, a slot 5 is provided at the top of the bidirectional lead screw 4. The slot 5 can be rotated by a flathead screwdriver, thereby driving the bidirectional lead screw 4 to rotate. The slide rods 2 on both sides can keep the limit seat 3 moving in a straight line when it moves up and down. The limit ring 8 at the top of the sleeve body 7 moves on the inner wall of the connecting body 1 to ensure that the sleeve body 7 will not move out of the connecting body 1.

[0026] Reference Figure 2 and Figure 3 The inner wall of the sleeve body 7 is threaded with a steel bar body 10. The upper and lower sides of the outer wall of the sleeve body 7 and the steel bar body 10 are provided with reinforcing arc plates 13. The front and rear sides of the reinforcing arc plate 13 are fixedly connected with two fixing plates 14. The upper and lower fixing plates 14 are connected by bolts. The inner wall of the reinforcing arc plate 13 has a groove 15. The outer walls of the sleeve body 7 are fixedly connected with protrusions 11. The protrusions 11 and the grooves 15 are matched in shape. The inner wall of the reinforcing arc plate 13 has multiple transverse grooves 16. The outer walls of the steel bar body 10 are fixedly connected with multiple transverse ribs 12. The transverse grooves 16 and the transverse ribs 12 are matched in shape.

[0027] Specifically, the threaded connection between the sleeve body 7 and the reinforcing bar body 10 is a detachable threaded connection. The left side of the inner wall of the reinforcing arc plate 13 matches the outer wall of the sleeve body 7, while the right side of the inner wall of the reinforcing arc plate 13 matches the outer wall of the reinforcing bar body 10. The reinforcing arc plate 13 is fixed with fixing plates 14 at the front and rear. The upper and lower identical reinforcing arc plates 13 are attached to the outer walls of the sleeve body 7 and the reinforcing bar body 10. Then, the fixing plates 14 are fixed together with bolts, so that the reinforcing arc plates 13 are fixed together.

[0028] Working principle: In use, a flathead screwdriver can be used to rotate the flathead groove 5 at the top of the main body 1, causing the flathead groove 5 to drive the double-acting screw 4 to rotate. The double-acting screw 4 then drives the upper and lower limit seats 3 to move closer to the center. When the limit seats 3 move closer to the center, the fixing groove 6 on the outer wall pushes the fixing ring 9 on the inner wall of the sleeve body 7, thereby allowing the sleeve body 7 to move outward. After the sleeve body 7 moves to the appropriate position, the double-acting screw 4 is rotated in the opposite direction, causing the upper and lower limit seats 3 to move to the sides, so that the fixing groove 6 on the limit seats 3 engages with the inner wall of the sleeve body 7. The fixing rings 9 of the wall engage to fix the sleeve body 7, thereby changing the connection distance between the two steel bar bodies 10. Then, the steel bar body 10 is threadedly connected to the sleeve body 7 on both sides. Then, the reinforcing arc plate 13 is placed on the outer wall of the sleeve body 7 and the steel bar body 10, and the protrusion 11 on the sleeve body 7 enters the protrusion 15 on the reinforcing arc plate 13, and the transverse bar 12 on the steel bar body 10 enters the transverse groove 16 on the reinforcing arc plate 13. Then, the upper and lower outer fixing plates 14 are fixed together with bolts to fix the reinforcing arc plate 13.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reinforcing bar threaded sleeve assembly structure characterized by, The utility model relates to a connecting body (1), two slide bars (2) are fixedly connected in the inner wall of connecting body (1), the outer wall upper and lower sides of slide bar (2) are slidably connected with limiting seat (3), the inner wall of limiting seat (3) is provided with adjusting assembly, the inner wall of sleeve body (7) is provided with steel body (10) in sleeve body (7) left and right two sides of connecting body (1), the outer wall upper and lower sides of sleeve body (7) and steel body (10) are provided with reinforcing arc plate (13), reinforcing arc plate (13) front and rear sides are fixedly connected with two fixed plates (14), and the fixed plate (14) of upper and lower sides is connected through bolt, and reinforcing arc plate (13) is connected with sleeve body (7) and steel body (10) respectively through clamping assembly.

2. A reinforcing bar threaded sleeve assembly according to claim 1, wherein: The adjusting assembly includes a bidirectional screw rod (4) rotatably connected to the inner wall of the connecting body (1), and the limiting seat (3) is threadedly connected to the outer wall of the bidirectional screw rod (4).

3. A reinforcing bar threaded sleeve assembly according to claim 2, wherein: The bidirectional screw rod (4) is provided with a one-groove (5) at the top end thereof for driving the bidirectional screw rod (4) to rotate.

4. A reinforcing bar threaded sleeve assembly structure according to claim 1, wherein: The limiting seat (3) is provided with a plurality of fixing grooves (6) on the outer wall thereof, the sleeve body (7) is fixedly connected with a fixing ring (9) on the inner wall thereof, and the fixing ring (9) is matched with the fixing grooves (6) in shape.

5. A reinforcing bar threaded sleeve assembly structure according to claim 1, wherein: The sleeve body (7) is fixedly connected with a limiting ring (8) at the top end thereof, and the limiting ring (8) is sleeved on the inner wall of the connecting body (1).

6. A reinforcing bar threaded sleeve assembly structure according to claim 1, wherein: The clamping assembly includes a convex groove (15) formed on the inner wall of the reinforcing arc plate (13), and the outer wall of the sleeve body (7) is fixedly connected with a convex block (11) on both sides thereof, and the convex block (11) is matched with the convex groove (15) in shape.

7. A reinforcing bar threaded sleeve assembly structure according to claim 1, wherein: The reinforcing arc plate (13) is provided with a plurality of transverse grooves (16) on the inner wall thereof, and the outer wall of the steel body (10) is fixedly connected with a plurality of transverse ribs (12) on both sides thereof, and the transverse grooves (16) are matched with the transverse ribs (12) in shape.

Citation Information

Patent Citations

  • Half-straight-thread half-extrusion sleeve capable of adjusting length of reinforcing steel bar

    CN213774126U