High-strength anti-loose sleeve for reinforcing bar connection and use method thereof

Abstract

The application discloses a high-strength anti-loose sleeve for reinforcing steel bar connection and a use method. The high-strength anti-loose sleeve for reinforcing steel bar connection comprises a sleeve body and a locking shaft sleeve. Steel bar guide grooves are arranged at both ends of the sleeve body, and threads are arranged on the inner walls of the steel bar guide grooves. The inner sides of the steel bar guide grooves are adhesion reinforcing cavities. Depth detection assemblies are arranged between the adhesion reinforcing cavities. Pressing sleeves are arranged at both ends of the sleeve body. The locking shaft sleeve is arranged at both ends of the sleeve body. The method comprises the following steps: reinforcing steel bar judgment; rotating and sleeving one end of the reinforcing steel bar into the locking shaft sleeve; detecting whether the reinforcing steel bar is completely inserted into the sleeve body by the depth detection assemblies; locking the reinforcing steel bar by the locking shaft sleeve; screwing a tightening screw into a tightening nut to pressurize the peripheral surface of the sleeve body through the folded steel wire; and screwing a pressurizing hole into a screw to pressurize the peripheral surface of the reinforcing steel bar. The application reinforces the connecting strength between the sleeve body and the reinforcing steel bar through the adhesion reinforcing cavities, simultaneously cooperates with the insertion depth detection and the multiple pressurization anti-loose, and guarantees the stability and the strength of the reinforcing steel bar connection.

Description

Technical Field

[0001] This invention belongs to the field of rebar connection, and specifically relates to a high-strength anti-loosening sleeve for rebar connection and its usage method. Background Technology

[0002] In the field of construction engineering, the connection technology of steel bars is of paramount importance, as it directly affects the stability and safety of the entire building structure.

[0003] Traditional methods of connecting reinforcing bars, such as welding and tying, can achieve the connection purpose to a certain extent, but they also face problems such as complex operation, low efficiency, and high cost.

[0004] Traditional rebar connection methods require specialized skills and complex procedures, increasing construction difficulty and the risk of errors. They are also time-consuming and affect the overall construction progress. In addition, the connection strength is difficult to control precisely and is affected by various factors such as the skill level of the operator and the quality of materials, posing safety hazards. At the same time, the depth of rebar insertion is difficult to guarantee, affecting the stability of the connection.

[0005] Therefore, there is an urgent need to design a new device and method to solve the above problems. Summary of the Invention

[0006] Purpose of the invention: In order to overcome the above shortcomings, the purpose of this invention is to provide a high-strength anti-loosening sleeve for rebar connection and a method of use. By setting an adhesive reinforcement cavity, the connection strength between the sleeve body and the rebar is strengthened. At the same time, with the cooperation of insertion depth detection and multiple pressure anti-loosening, the rebar is pressurized by using locking bushings, pressure sleeves and pressure holes to prevent loosening and ensure the stability and strength of the rebar connection.

[0007] Technical Solution: To achieve the above objectives, this invention provides a high-strength anti-loosening sleeve for rebar connections, comprising a sleeve body and a locking bushing. Both ends of the sleeve body are provided with rebar guide grooves, and the inner walls of the rebar guide grooves are threaded. The inner side of the rebar guide groove is an adhesion reinforcement cavity. A depth detection component is provided between the adhesion reinforcement cavities to detect whether the rebar is fully inserted into the sleeve. Both ends of the sleeve body are provided with pressure grooves. Pressure clamps are provided within the pressure grooves. The pressure clamps include steel wires and tightening screws. The sleeve consists of a cap and a tightening screw; a folded steel wire is wound around the pressure groove; the tightening screw is threadedly connected to the tightening cap; a tightening baffle is provided at the tail of the tightening screw; the folded end of the steel wire is located in the opening on the tightening cap and welded to the tightening screw; the other folded end of the steel wire is fitted onto the tail of the tightening screw and is limited by the tightening baffle; a pre-connection port is provided beside the rebar guide groove and is located on both ends of the sleeve body; the locking shaft is fitted onto both ends of the sleeve body and threadedly connected to the pre-connection port. The pressure clamp provides pressure to the circumference of the sleeve body to prevent the rebar connection from loosening.

[0008] Furthermore, the adhesive reinforcement cavity is approximately elliptical in shape, and its inner wall is filled with a highly adhesive material. This elliptical shape ensures the structural stability of the sleeve body while maximizing the amount of highly adhesive material used to maintain the bond strength between the sleeve body and the reinforcing steel.

[0009] Furthermore, the sleeve body has two sets of pressure holes symmetrically arranged on its circumference near the bonding and reinforcement cavity; the inner wall of the pressure holes is threaded. The threads on the inner wall of the pressure holes provide guidance for the subsequent screw insertion and provide support for the screw to abut against the circumference of the reinforcing bar after being screwed in, preventing the screw from slipping; at the same time, the sleeve body has pressure holes symmetrically arranged on its circumference near the bonding and reinforcement cavity, ensuring that the sleeve body is subjected to uniform force while the reinforcing bar is pressurized to the maximum extent to prevent loosening, thus ensuring the connection strength.

[0010] Furthermore, the sleeve body has a detection through hole in the middle; the depth detection component is located inside the detection through hole. During assembly, the depth detection component is observed through the detection through hole; if it is pushed out, it is fully inserted.

[0011] Furthermore, the depth detection component includes two connecting rods, a set of positioning brackets, and a spring; the two connecting rods are connected in the middle by the spring; the connecting rods are located inside the detection through hole; the positioning brackets are located on both sides of the connecting rods; the middle part of the positioning bracket protrudes from the detection through hole, and its edge abuts against the edge of the detection through hole.

[0012] Furthermore, during assembly, the positioning bracket is pushed by the steel bars, which causes the two connecting rods to open up, while the spring is stretched longitudinally.

[0013] Furthermore, the inner wall of the locking bushing is threaded, and the thread pitch of the inner wall of the locking bushing and the thread pitch between the locking bushing and the pre-connection port are equal. The locking bushing, through its inner wall thread, ensures that the reinforcing bar is aligned and locked after being inserted into the sleeve body; the equal thread pitch enhances the connection strength between the reinforcing bar and the sleeve body.

[0014] This invention also provides a method for using a high-strength anti-loosening sleeve for rebar connections, comprising:

[0015] S1): Reinforcing steel bar inspection. If a horseshoe shape or a bend that does not conform to the specifications is found, replace the reinforcing steel bar with one that conforms to the specifications.

[0016] S2): One end of each of the two steel bars is rotated and fitted into the locking sleeves on both sides, and then inserted into the pre-connection port for pre-connection;

[0017] S3): The reinforcing bar rotates into the sleeve body along the reinforcing bar guide groove until the connecting rod is seen to be pushed out through the detection through hole;

[0018] S4): The locking bushing rotates along the thread of the reinforcing bar until one end of the locking bushing abuts against the end face of the sleeve body, thus locking the reinforcing bar;

[0019] S5): The tightening screw is screwed into the tightening nut through the thread. The two ends of the folded steel wire are located on the tightening nut and limited by the tightening baffle, respectively. As the tightening screw and the tightening nut are tightened, the folded steel wire applies pressure to the circumference of the sleeve body.

[0020] S6): Screw in the pressure hole and press it against the circumference of the steel bar to tighten it.

[0021] As can be seen from the above technical solution, the present invention has the following beneficial effects:

[0022] 1. The present invention provides a high-strength anti-loosening sleeve for rebar connection and a method of use, wherein the connection strength between the sleeve body and the rebar is strengthened by setting an adhesive reinforcement cavity;

[0023] 2. The present invention provides a high-strength anti-loosening sleeve for rebar connection and a method of using it, which ensures that the rebar is fully inserted by using a detection through hole and a depth detection component.

[0024] 3. The present invention provides a high-strength anti-loosening sleeve for rebar connection and a method of use, which, together with multiple pressure anti-loosening devices, uses locking bushings, pressure clamps and pressure holes to pressurize the rebar, prevent loosening, and ensure the stability and strength of the rebar connection. Attached Figure Description

[0025] Figure 1 This is a cross-sectional schematic diagram of a high-strength anti-loosening sleeve for rebar connection according to the present invention;

[0026] Figure 2This is a schematic diagram of the pressure sleeve in a high-strength anti-loosening sleeve for rebar connection according to the present invention;

[0027] Figure 3 This is a side view of the pressure sleeve in a high-strength anti-loosening sleeve for rebar connection according to the present invention;

[0028] Figure 4 This is a schematic diagram of the locking bushing in a high-strength anti-loosening sleeve for rebar connection according to the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of a depth detection component in a high-strength anti-loosening sleeve for rebar connection according to the present invention;

[0030] Figure 6 This is a step diagram illustrating the method of using a high-strength anti-loosening sleeve for rebar connection according to the present invention;

[0031] Figure 7 This is a flowchart illustrating the method of using a high-strength anti-loosening sleeve for rebar connection as described in this invention;

[0032] In the picture:

[0033] 1-Sleeve body;

[0034] 11-Rebar guide groove; 111-Pre-connection port;

[0035] 12-Adhesion-reinforced cavity;

[0036] 13-Depth detection component; 131-Connecting rod; 132-Positioning bracket; 133-Spring;

[0037] 14-Pressure tank;

[0038] 15-Pressure clamp; 151-Steel wire; 152-Tightening nut; 153-Tightening screw; 1531-Tightening baffle;

[0039] 16-Locking bushing;

[0040] 17-Pressure hole

[0041] 18 - Inspection through hole. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0043] In this embodiment, as Figures 1 to 3 This invention discloses a high-strength anti-loosening sleeve for rebar connection, comprising a sleeve body 1 and a locking bushing 16; both ends of the sleeve body 1 are provided with rebar guide grooves 11, and the inner wall of the rebar guide grooves 11 is provided with threads; the inner side of the rebar guide grooves 11 is an adhesion reinforcement cavity 12; a depth detection component 13 is provided between the adhesion reinforcement cavities 12 for detecting whether the rebar is fully inserted into the sleeve; both ends of the sleeve body 1 are provided with pressure grooves 14; a pressure clamp 15 is provided in the pressure groove 14; the pressure clamp 15 includes a steel wire 151, a tightening nut 152 and a tightening screw 153; the steel wire 151... The sleeve body 1 is folded in half and arranged around the pressure groove 14; the tightening screw 153 is threadedly connected to the tightening nut 152; the tail of the tightening screw 153 is provided with a tightening baffle 1531; the folded end of the steel wire 151 is located in the opening on the tightening nut 152 and is welded to the tightening screw 153; the other end of the folded steel wire 151 is sleeved on the tail of the tightening screw 153 and is limited by the tightening baffle 1531; the side of the steel bar guide groove 11 is provided with a pre-connection port 111 and is located on both ends of the sleeve body 1; the locking bushing 16 is located at both ends of the sleeve body 1 and is threadedly connected to the pre-connection port 111.

[0044] Specifically, the thread design of the inner wall of the rebar guide groove 11 matches the thread of the connected rebar, ensuring that it can rotate and lock along the rebar.

[0045] In this embodiment, as Figure 1 The adhesive reinforcement cavity 12 is elliptical in shape and its inner wall is filled with a highly adhesive material.

[0046] Specifically, epoxy resin is preferred for materials with strong adhesion.

[0047] Specifically, the strong adhesive material in the bonding and reinforcement cavity 12 can be injected through the pressure hole after the reinforcing bar is inserted.

[0048] In this embodiment, as Figure 1 The sleeve body 1 has two sets of pressure holes 17 symmetrically arranged on the circumference of the near-adhesion reinforcement cavity 12; the inner wall of the pressure hole 17 is provided with threads.

[0049] Specifically, a locking screw is selected and screwed into the thread on the inner wall of the pressure hole 17 to apply pressure to the reinforcing bar.

[0050] In this embodiment, as Figure 1 The sleeve body 1 has a detection through hole 18 in the middle; the depth detection component 13 is disposed in the detection through hole 18.

[0051] In this embodiment, as Figure 1 and Figure 5The depth detection component 13 includes two connecting rods 131, a set of positioning brackets 132, and a spring 133; the two connecting rods 131 are connected in the middle by the spring 133; the connecting rods 131 are disposed in the detection through hole 18; the positioning brackets 132 are disposed on both sides of the connecting rods 131; the middle part of the positioning brackets 132 protrudes from the detection through hole 18, and the edge abuts against the edge of the detection through hole 18.

[0052] Specifically, during assembly, the positioning bracket 132 is pushed by the steel bar, which drives the two connecting rods 131 to open, while the longitudinal tension spring 133 is stretched.

[0053] Specifically, the detection through hole 18 is opened according to the width of the depth detection component 13, ensuring that the upper edge of the connecting rod 131 is flush with the upper end of the detection through hole 18 when the positioning bracket 132 is completely upright.

[0054] In this embodiment, as Figure 4 The inner wall of the locking bushing 16 is threaded, and the thread pitch of the inner wall of the locking bushing 16 is equal to that of the thread between the locking bushing 16 and the pre-connection port 111.

[0055] Specifically, the thread design of the inner wall of the locking bushing 16 matches the thread of the connected steel bar, ensuring that it can rotate and lock along the steel bar.

[0056] In this embodiment, as Figure 6 and Figure 7 The present invention also discloses a method for using a high-strength anti-loosening sleeve for rebar connection, comprising:

[0057] S1): Reinforcing steel bar inspection. If a horseshoe shape or a bend that does not conform to the specifications is found, replace the reinforcing steel bar with one that conforms to the specifications.

[0058] S2): One end of each of the two steel bars is rotated and fitted into the locking bushings 16 on both sides, and then extended into the pre-connection port 111 for pre-connection.

[0059] S3): The reinforcing bar rotates into the sleeve body 1 along the reinforcing bar guide groove 11 until the connecting rod 131 is seen to be pushed out from the detection through hole 18;

[0060] S4): The locking bushing 16 rotates along the thread of the reinforcing bar until one end of the locking bushing 16 abuts against the end face of the sleeve body 1 to lock the reinforcing bar;

[0061] S5): Tightening screw 153 is screwed into tightening nut 152 through threads. The two ends of the folded steel wire 151 are respectively located on tightening nut 152 and limited by tightening baffle 1531. As tightening screw 153 and tightening nut 152 are tightened, the folded steel wire 151 applies pressure to the circumference of sleeve body 1.

[0062] S6): Screw in the pressure hole 17 to pressurize and lock it against the circumference of the steel bar.

[0063] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A high-strength anti-loosening sleeve for rebar connection, characterized in that: include The sleeve body (1) has a steel bar guide groove (11) at both ends, and the inner wall of the steel bar guide groove (11) is threaded. The inner side of the reinforcing bar guide groove (11) is an adhesion reinforcement cavity (12); a depth detection component (13) is provided between the adhesion reinforcement cavities (12) to detect whether the reinforcing bar is fully inserted into the sleeve; Both ends of the sleeve body (1) are provided with pressure grooves (14); a pressure clamp (15) is provided in the pressure groove (14); The pressure clamp (15) includes a steel wire (151), a tightening nut (152), and a tightening screw (153); the steel wire (151) is folded in half and is arranged around the pressure groove (14); the tightening screw (153) is threadedly connected to the tightening nut (152); the tail of the tightening screw (153) is provided with a tightening baffle (1531); the end of the folded steel wire (151) is located in the opening on the tightening nut (152) and is welded to the tightening screw (153); the other end of the folded steel wire (151) is fitted onto the tail of the tightening screw (153) and is limited by the tightening baffle (1531); The steel bar guide groove (11) is provided with a pre-connection port (111) on the side and is located on both ends of the sleeve body (1); Locking bushing (16), the locking bushing (16) is located at both ends of the sleeve body (1) and is threadedly connected to the pre-connection port (111); The sleeve body (1) is provided with two sets of pressure holes (17) symmetrically on the circumference of the near-adhesion reinforcement cavity (12); the inner wall of the pressure hole (17) is provided with threads; The sleeve body (1) is provided with a detection through hole (18) in the middle; the depth detection component (13) is provided in the detection through hole (18); The depth detection component (13) includes two connecting rods (131), a set of positioning brackets (132), and a spring (133); the two connecting rods (131) are connected in the middle by the spring (133); the connecting rods (131) are located inside the detection through hole (18); the positioning brackets (132) are located on both sides of the connecting rods (131); the middle part of the positioning brackets (132) protrudes out of the detection through hole (18), and the edge abuts against the edge of the detection through hole (18).

2. The high-strength anti-loosening sleeve for rebar connection according to claim 1, characterized in that: The adhesive reinforcement cavity (12) is elliptical in shape and its inner wall is filled with a highly adhesive material.

3. The high-strength anti-loosening sleeve for rebar connection according to claim 1, characterized in that: The inner wall of the locking bushing (16) is threaded, and the thread pitch of the inner wall of the locking bushing (16) and the thread pitch between the locking bushing (16) and the pre-connection port (111) are equal.

4. A method of using a high-strength anti-loosening sleeve for rebar connection, used to achieve the high-strength anti-loosening sleeve for rebar connection as described in any one of claims 1 to 3, characterized in that: include: S1): Reinforcing steel bar inspection. If a horseshoe shape or a bend that does not conform to the specifications is found, replace the reinforcing steel bar with one that conforms to the specifications. S2): One end of each of the two steel bars is rotated and fitted into the locking bushings (16) on both sides, and then inserted into the pre-connection port (111) for pre-connection; S3): The reinforcing bar rotates into the sleeve body (1) along the reinforcing bar guide groove (11) until the connecting rod (131) is seen to be pushed out through the detection through hole (18); S4): The locking bushing (16) rotates along the reinforcing bar thread until one end of the locking bushing (16) abuts against the end face of the sleeve body (1) to lock the reinforcing bar; S5): The tightening screw (153) is screwed into the tightening nut (152) through the thread. The two ends of the folded steel wire (151) are located on the tightening nut (152) and limited by the tightening baffle (1531), respectively. As the tightening screw (153) and the tightening nut (152) are tightened, the folded steel wire (151) applies pressure to the circumference of the sleeve body (1). S6): Screw into the pressure hole (17) and press it against the circumference of the steel bar to lock it in place.

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