Reinforced steel connecting sleeve
By introducing a shaped ring and a limiting plate into the rebar connecting sleeve, the problem of insufficient bonding force and tensile strength of traditional sleeves is solved, resulting in a more stable rebar connection, enhanced adhesion to concrete and anti-rotation ability, and ensuring the stability and strength of the connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN HESHAN CONSTR MASCH CO LTD
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional rebar connecting sleeves have poor adhesion and axial tensile strength, leading to unstable connections. Threaded connections may also loosen, affecting connection strength.
The use of an integrally molded irregular ring and connecting cylinder enhances the adhesion to concrete. The design of the irregular ring and limiting plate improves the anti-rotation ability, and the use of threaded grooves and elastic clamps ensures a stable connection between the reinforcing bar and the connecting cylinder.
It improves the bond strength and tensile strength between the steel bars and concrete, ensures the stability and strength of the connection, prevents the steel bars from loosening, and enhances the overall stability of the connection.
Smart Images
Figure CN224468664U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of connecting sleeves, and more specifically, to a reinforced steel bar connecting sleeve. Background Technology
[0002] In reinforced concrete structure construction, rebar connections include lap splicing, mechanical connections, and welding. In current construction practices, mechanical connections are preferred because they not only ensure the load-bearing capacity of the rebar but also reduce the need for long lap lengths and save on steel usage. Rebar splice sleeves are a type of mechanical connection suitable for connecting large-diameter rebars. They offer advantages such as energy efficiency and are not limited by the composition or type of rebar.
[0003] Currently, the bonding force and axial tensile strength between the outer surface of the traditional rebar connecting sleeve and the concrete are poor, resulting in an unstable connection between the connecting sleeve and the rebar after connection. Furthermore, the threaded connection between the rebar and the connecting sleeve may loosen, and the connection strength is not stable enough. Utility Model Content
[0004] To overcome the above deficiencies, this application provides an enhanced rebar connection sleeve, which aims to improve the problems mentioned in the background art.
[0005] This application provides an enhanced rebar connection sleeve including a sleeve assembly and a connection assembly.
[0006] The sleeve assembly includes a connecting cylinder, a shaped ring, and a limiting plate. The shaped ring is fixedly sleeved on the outside of the connecting cylinder, and the limiting plate is fixedly connected to the inner wall of the connecting cylinder.
[0007] The connecting assembly includes a reinforcing bar, a connector, and an elastic clamp. The reinforcing bar is threaded to the connecting cylinder, the connector is threaded to the end of the reinforcing bar, and the elastic clamp is fixedly connected to the end of the connector. The limiting plate has a limiting hole, and the elastic clamp is inserted and engaged in the limiting hole.
[0008] In one specific implementation, the irregular ring and the connecting cylinder are integrally formed, and a rectangular surface is provided on the outer side of the irregular ring.
[0009] In the above implementation process, the integrally formed irregular ring and connecting cylinder have high structural strength and stability. The rectangular surface increases the sleeve's anti-rotation ability and avoids rotation relative to the concrete.
[0010] In one specific implementation, multiple irregularly shaped rings are evenly arranged, and the limiting plate is located in the middle of the connecting cylinder.
[0011] In the above implementation process, by setting multiple irregular rings to improve tensile and rotational strength, the contact area with concrete is increased to improve adhesion. The limiting plate is arranged in the middle of the connecting cylinder to ensure that the length of the tightened steel bars at both ends is the same.
[0012] In one specific implementation, the outer surface of the building steel bar is provided with a first threaded groove, and the inner wall of the connecting cylinder is threadedly connected to the first threaded groove.
[0013] In the above implementation process, the building steel bars and the inner wall of the connecting cylinder are threaded together by opening the first threaded groove.
[0014] In one specific implementation, the reinforcing bar has a second threaded groove, and the connector is threaded to the end of the reinforcing bar.
[0015] In the above implementation process, a second threaded groove is provided for the connector to be threaded connected and installed.
[0016] In one specific implementation, the first threaded groove and the second threaded groove have opposite thread directions.
[0017] In the above implementation process, the stability of installation can be improved by using the first and second thread grooves with opposite thread directions.
[0018] In one specific implementation, the connector is fixedly connected to a limiting ring, which abuts against the building reinforcement.
[0019] In the above implementation process, the connection depth of the connector is limited by setting a limit ring.
[0020] In one specific implementation, the end of the elastic clip away from the connector is tapered, and the limiting hole is stepped.
[0021] In the above implementation process, by setting a tapered connector end, it is ensured that the elastic clamp can be bent during rotation. The stepped limiting hole can be reset after the elastic clamp is bent and inserted into the limiting hole, and can be locked and connected in the limiting hole.
[0022] Beneficial effects: This application provides an enhanced rebar connecting sleeve. By setting a connecting sleeve, a shaped ring, and a limiting plate, the shaped ring can improve the adhesion and tensile strength with concrete, thereby improving the connection stability. At the same time, the limiting plate restricts the connection length of the rebars at both ends, ensuring that the connection length is the same. By setting a building rebar, a connector, and an elastic clamp, the elastic clamp can be squeezed and bent into the limiting hole during the tightening of the building rebar. When the building rebar abuts against the limiting plate, the elastic clamp is inserted into the limiting hole and resets to lock the connection, thereby restricting the rotation and separation of the building rebar and the connecting sleeve, and improving the connection strength. Attached Figure Description
[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is a schematic diagram of the reinforced steel bar connecting sleeve structure provided in the embodiments of this application;
[0025] Figure 2 A schematic diagram of the connecting cylinder structure provided for an embodiment of this application;
[0026] Figure 3 A schematic diagram of the limiting plate structure provided for an embodiment of this application;
[0027] Figure 4 A schematic diagram of the building reinforcement structure provided for the embodiments of this application;
[0028] Figure 5 A schematic diagram of the connector structure provided for an embodiment of this application.
[0029] In the diagram: 100 - Sleeve assembly; 110 - Connecting cylinder; 120 - Irregular ring; 121 - Rectangular surface; 140 - Limiting plate; 141 - Limiting hole; 200 - Connecting assembly; 210 - Building steel reinforcement; 211 - First thread groove; 212 - Second thread groove; 220 - Connector; 222 - Limiting ring; 240 - Elastic clamp. Detailed Implementation
[0030] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0031] Please see Figures 1-5 This application provides an enhanced rebar connecting sleeve including a sleeve assembly 100 and a connecting assembly 200.
[0032] Please see Figure 1 , 2 3. The sleeve assembly 100 includes a connecting cylinder 110, a shaped ring 120, and a limiting plate 140. The shaped ring 120 is fixedly sleeved on the outside of the connecting cylinder 110, and the limiting plate 140 is fixedly connected to the inner wall of the connecting cylinder 110.
[0033] The irregular ring 120 and the connecting cylinder 110 are integrally formed, and a rectangular surface 121 is provided on the outer side of the irregular ring 120.
[0034] Specifically, multiple irregular rings 120 are evenly arranged, and the limiting plate 140 is located in the middle of the connecting cylinder 110. By setting multiple irregular rings 120, the tensile strength and rotational strength are improved, while the contact area with concrete is increased to improve the adhesion. The limiting plate 140 is arranged in the middle of the connecting cylinder 110 to ensure that the length of the tightened steel bars at both ends is the same.
[0035] Please see Figure 1 , 3 4 and 5, the connecting assembly 200 includes a reinforcing bar 210, a connector 220 and an elastic clamp 240. The reinforcing bar 210 is threaded to the connecting cylinder 110, the connector 220 is threaded to the end of the reinforcing bar 210, and the elastic clamp 240 is fixedly connected to the end of the connector 220. The limiting plate 140 has a limiting hole 141, and the elastic clamp 240 passes through and is clamped in the limiting hole 141.
[0036] The outer surface of the building steel bar 210 is provided with a first threaded groove 211, and the inner wall of the connecting cylinder 110 is threadedly connected to the first threaded groove 211. The threaded connection between the building steel bar 210 and the inner wall of the connecting cylinder 110 is achieved by providing the first threaded groove 211.
[0037] In this embodiment, the building steel bar 210 is provided with a second threaded groove 212, and the connector 220 is threadedly connected to the end of the building steel bar 210. The second threaded groove 212 is provided for the connector 220 to be threadedly connected and installed.
[0038] It should be noted that the first threaded groove 211 and the second threaded groove 212 have opposite thread directions. The opposite thread directions of the first threaded groove 211 and the second threaded groove 212 can improve the stability of the installation. The connector 220 is fixedly connected to the limiting ring 222, which abuts against the building steel bar 210. By setting the limiting ring 222, the connection depth of the connector 220 is limited. When the building steel bar 210 rotates and loosens relative to the connecting cylinder 110, the building steel bar 210 and the connector 220 will rotate and connect more tightly. Therefore, the elastic clip 240 hooks into the limiting hole 141 to ensure the connection stability.
[0039] In one specific implementation, the end of the elastic clip 240 away from the connector 220 is tapered, and the limiting hole 141 is stepped. By setting the tapered end of the connector 220, it is ensured that the elastic clip 240 can be squeezed and bent during rotation. The stepped limiting hole 141 is reset after the elastic clip 240 is bent and inserted into the limiting hole 141, and can be snapped into the limiting hole 141.
[0040] The working principle of this reinforced rebar connecting sleeve is as follows: When the first threaded groove 211 is made into the reinforcing bar 210, a second threaded groove 212 with the opposite thread direction is made at its end. Then, the connector 220 is screwed into the second threaded groove 212 until the limiting ring 222 abuts against the reinforcing bar 210. Next, the reinforcing bar 210 is screwed into the connecting sleeve 110. As the reinforcing bar 210 rotates and tightens, the tapered connector 220 contacts the inner edge of the limiting hole 141, then the elastic clamp 240 is bent, and the reinforcing bar 210 abuts against the limiting hole. Plate 140, after the elastic clamp 240 is bent and inserted into the limiting hole 141, returns to its original position and can be snapped into the stepped limiting hole 141 to complete the connection. After the connection is completed, if the reinforcing bar 210 rotates relative to the reinforcing bar 220 and is about to loosen, the connector 220 and the elastic clamp 240 restrict the axial movement of the reinforcing bar 210. The rotation of the reinforcing bar 210 relative to the connector 220 makes the connection tighter, thereby greatly improving the connection stability. The rectangular surface 121 of the irregular ring 120 can further improve the adhesion and tensile strength with concrete, and improve the connection stability.
[0041] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. In all respects, the embodiments should be considered illustrative and non-limiting, and the scope of this application is defined by the appended claims rather than the foregoing description; therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A reinforced steel bar connecting sleeve, characterized in that, include A sleeve assembly (100) includes a connecting cylinder (110), a shaped ring (120), and a limiting plate (140). The shaped ring (120) is fixedly sleeved on the outside of the connecting cylinder (110), and the limiting plate (140) is fixedly connected to the inner wall of the connecting cylinder (110). A connecting assembly (200) includes a reinforcing bar (210), a connector (220), and an elastic clamp (240). The reinforcing bar (210) is threaded to the connecting cylinder (110), the connector (220) is threaded to the end of the reinforcing bar (210), and the elastic clamp (240) is fixedly connected to the end of the connector (220). A limiting plate (140) has a limiting hole (141), and the elastic clamp (240) is inserted and engaged in the limiting hole (141).
2. The reinforced steel bar connecting sleeve according to claim 1, characterized in that, The irregular ring (120) and the connecting cylinder (110) are integrally formed, and a rectangular surface (121) is provided on the outer side of the irregular ring (120).
3. The reinforced steel bar connecting sleeve according to claim 1, characterized in that, Multiple irregularly shaped rings (120) are evenly arranged, and the limiting plate (140) is located in the middle of the connecting cylinder (110).
4. The reinforced steel bar connecting sleeve according to claim 1, characterized in that, The outer surface of the building steel bar (210) is provided with a first threaded groove (211), and the inner wall of the connecting cylinder (110) is threadedly connected to the first threaded groove (211).
5. The reinforced steel bar connecting sleeve according to claim 4, characterized in that, The building steel bar (210) has a second threaded groove (212), and the connector (220) is threaded to the end of the building steel bar (210).
6. The reinforced steel bar connecting sleeve according to claim 5, characterized in that, The first threaded groove (211) and the second threaded groove (212) have opposite thread directions.
7. The reinforced steel bar connecting sleeve according to claim 1, characterized in that, The connector (220) is fixedly connected to a limiting ring (222), and the limiting ring (222) abuts against the building steel bar (210).
8. The reinforced steel bar connecting sleeve according to claim 1, characterized in that, The end of the elastic clip (240) away from the connector (220) is tapered, and the limiting hole (141) is stepped.