Portable full grouting sleeve for steel bar connection

Abstract

The utility model provides a portable full grouting sleeve for reinforcing steel bar connection, which relates to the technical field of reinforcing steel bar processing, and comprises a sleeve main body and a reinforcing steel bar main body, conical positioning sleeves are symmetrically arranged in the sleeve main body close to the center position, conical positioning grooves are formed in the conical positioning sleeves, and second spiral ribs are distributed on the inner walls of the conical positioning grooves; the inner walls of the conical positioning grooves abut against the ends of the reinforcing steel bar bodies, the reinforcing steel bar bodies penetrate through the two ends of the sleeve body, first spiral ribs are arranged on the inner walls of the sleeve body, and through accurate butt joint of the conical positioning sleeve and the conical positioning grooves, high-precision connection between the reinforcing steel bar bodies and the sleeve body is achieved, and meanwhile butt joint errors are effectively reduced; the reinforcing design of the second spiral ribs and the first spiral ribs not only increases the friction force between the steel bars and the sleeve, but also improves the bonding force between the grouting material and the inner wall of the sleeve, so that the connecting strength and durability of the steel bars are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar processing, in particular to a portable full-grouting sleeve for steel bar connection. Background Art

[0002] According to a grouting sleeve steel bar connection structure disclosed in Chinese Patent Publication No. CN116695956A, which includes a sleeve filled with grouting material inside, and the sleeve includes an opening part, a grouting hole, and a slurry discharge hole. The opening part is provided at least on one side of the sleeve and is provided with a sealing groove; the grouting hole is opened at one end of the sleeve, and the grouting material is injected through the grouting hole; the slurry discharge hole is opened at the other end of the sleeve, and the grouting material is discharged through the slurry discharge hole; a first connecting piece at least partially inserted into the sleeve; a sealing piece in contact with the first connecting piece to form a sealed central hole, and the sealing piece is provided with an anti-detachment part, and at least part of the anti-detachment part is inserted into the sealing groove. The grouting sleeve steel bar connection structure of the present invention can seal the inserted end of the steel bar and the sleeve to prevent the grouting material from invading into the sleeve.

[0003] In the above patent document and the prior art, when the grouting sleeve connects steel bars, due to the different sizes of the steel bars, the steel bars cannot be accurately aligned with the central position of the sleeve body, and deviations are likely to occur. Moreover, during grouting, since the inside of the sleeve is generally set as a plane, the stability of the formed slurry is insufficient, displacement is likely to occur, and the stability is not high, which is not conducive to the actual use of steel bar grouting connection. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings of the existing technology that the sleeve and the steel bar cannot be quickly aligned during connection and the stability is insufficient after grouting molding, and to propose a portable full-grouting sleeve for steel bar connection.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A portable full-grouting sleeve for steel bar connection, including a sleeve body and a steel bar body. Symmetrically arranged near the center position inside the sleeve body are conical positioning sleeves. Inside the conical positioning sleeves are conical positioning grooves. Distributed on the inner wall of the conical positioning grooves are second spiral ribs. The inner wall of the conical positioning grooves abuts against the end of the steel bar body. The steel bar body penetrates through both ends of the sleeve body, and the inner wall of the sleeve body is provided with first spiral ribs.

[0006] Preferably, the surface of the second spiral ribs abuts against the end of the steel bar body, and the coverage range of the first spiral ribs is the same as the length of the sleeve body.

[0007] Preferably, a grouting sleeve and a slurry discharge sleeve are respectively vertically penetrated through both ends of the sleeve body, and both the grouting sleeve and the slurry discharge sleeve penetrate through the inside of the sleeve body.

[0008] Preferably, the ends of adjacent conical positioning sleeves abut against each other, and the conical positioning sleeves are welded to the inner wall of the sleeve body.

[0009] Preferably, the conical positioning groove penetrates through both ends of the conical positioning sleeve, and the second spiral rib is distributed along the contour of the conical positioning groove.

[0010] Preferably, the vertical center line of the conical positioning sleeve, the vertical center line of the conical positioning groove and the vertical center line of the sleeve body coincide with each other.

[0011] Preferably, the outer edges of the sleeve body, the filling sleeve and the slurry discharge sleeve are all deburred.

[0012] Beneficial effects

[0013] In the present utility model, an accurate docking of a conical positioning sleeve and a conical positioning groove is arranged inside the sleeve body and an enhanced design of spiral ribs is adopted. Through the accurate docking of the conical positioning sleeve and the conical positioning groove, a high-precision connection between the steel bar body and the sleeve body is realized, effectively reducing the docking error. At the same time, the enhanced design of the second spiral rib and the first spiral rib not only increases the friction between the steel bar and the sleeve, but also improves the adhesion between the grouting material and the inner wall of the sleeve, thus significantly enhancing the strength and durability of the steel bar connection. This design not only simplifies the construction operation, improves the construction efficiency, but also ensures the stability and safety of the steel bar body connection under various complex working conditions, which is of great significance for improving the overall quality and safety of construction projects. Description of the drawings

[0014] Figure 1 It is a partial structural diagram inside the sleeve body of the present utility model;

[0015] Figure 2 It is a partial perspective view inside the sleeve body of the present utility model;

[0016] Figure 3 It is a partial connection structural diagram inside the sleeve body of the present utility model;

[0017] Figure 4 It is a connection structural diagram inside the sleeve body of the present utility model;

[0018] Figure 5 It is a connection structural diagram of the sleeve body of the present utility model.

[0019] Legend description:

[0020] 1. Sleeve body; 2. Steel bar body; 3. Filling sleeve; 4. Slurry discharge sleeve; 5. First spiral rib; 6. Conical positioning sleeve; 7. Conical positioning groove; 8. Second spiral rib. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the following further elaborates the present utility model in conjunction with specific embodiments and the accompanying drawings. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without making creative efforts all fall within the protection scope of the present utility model.

[0022] The following describes the specific embodiments of the present utility model with reference to the accompanying drawings. Specific Embodiment 1:

[0024] Referring to Figures 1-5 , a full-grouting sleeve for portable steel bar connection includes a sleeve main body 1 and a steel bar main body 2. Symmetrically arranged near the center inside the sleeve main body 1 are conical positioning sleeve main bodies 6. Inside the conical positioning sleeve main bodies 6 are provided conical positioning grooves 7. The conical design enables the steel bar main body 2 to be gradually positioned and closely fitted during insertion, reducing gaps and improving the stability and accuracy of the connection. Distributed on the inner wall of the conical positioning groove 7 are second spiral ribs 8. The surface of the second spiral ribs 8 abuts against the end of the steel bar main body 2. The coverage range of the first spiral ribs 5 is the same as the length of the sleeve main body 1. The second spiral ribs 8 increase the friction force between the steel bar main body 2 and the sleeve main body 1, preventing the steel bar main body 2 from slipping during the grouting process, ensuring the precise docking between the steel bar main body 2 and the sleeve main body 1, improving the connection strength and durability, and at the same time reducing the grout leakage phenomenon during the grouting process. The inner wall of the conical positioning groove 7 abuts against the end of the steel bar main body 2. The steel bar main body 2 penetrates through both ends of the sleeve main body 1. Provided on the inner wall of the sleeve main body 1 are first spiral ribs 5. The design of the first spiral ribs 5 increases the contact area and friction force between the inner wall of the sleeve main body 1 and the grouting material, contributing to the uniform distribution of the grouting material and the strength after curing, improving the bonding force of the grouting material, and enhancing the overall strength between the sleeve main body 1 and the grouting material, thereby further improving the stability of the connection of the steel bar main body 2.

[0025] When in use for grouting, grouting sleeves 3 and slurry discharge sleeves 4 are respectively vertically penetrated through both ends of the sleeve main body 1, and both the grouting sleeves 3 and the slurry discharge sleeves 4 penetrate through the inside of the sleeve main body 1. During grouting, the grouting material is injected into the inside of the sleeve main body 1 through the grouting sleeves 3, and the excess or uncured grouting material is discharged through the slurry discharge sleeves 4, ensuring that the inside of the sleeve main body 1 is fully grouted and free of air bubbles, simplifying the grouting operation, improving the grouting efficiency and quality, and reducing the problem of reduced connection strength caused by uneven grouting or air bubbles.

[0026] Other limiting structures of the entire device are that the ends of adjacent conical positioning sleeve 6 bodies 1 are abutted against each other, and the conical positioning sleeve 6 bodies 1 are welded to the inner wall of the sleeve body 1. Welding ensures the stability of the conical positioning sleeve 6 body 1 and prevents it from shifting during grouting or use. The close contact between adjacent sleeve bodies 1 further enhances the stability of the overall structure, enhances the overall rigidity and durability of the sleeve body 1, and ensures stable connection performance under various working conditions. The conical positioning groove 7 passes through both ends of the conical positioning sleeve 6 body 1, and the second spiral ribs 8 are distributed along the contour of the conical positioning groove 7. This layout allows the steel bar body 2 to gradually penetrate along the conical groove when inserted, and at the same time is evenly squeezed and positioned by the second spiral ribs 8, ensuring the accuracy and stability of the connection, optimizing the docking process between the steel bar body 2 and the sleeve body 1, reducing docking errors, and improving the accuracy and reliability of the connection. The vertical center line of the conical positioning sleeve 6 body 1, the vertical center line of the conical positioning groove 7 and the vertical center line of the sleeve body 1 coincide with each other, and the outer edge of the sleeve body 1, the outer edge of the filling sleeve and the outer edge of the slurry discharge sleeve 4 are all deburred. The deburring treatment eliminates sharp edges and uneven surfaces generated during the manufacturing process, reduces the risk of injury to operators, and improves the appearance quality of the product, enhances the safety and aesthetics of the product, and reduces potential quality problems caused by burrs. Specific embodiment 2:

[0028] Reference Figures 1-5 According to the contents in the above specific embodiments, the following contents are further disclosed:

[0029] In actual use, the following connection structure can be used when connecting the sleeve body 1 and the conical positioning sleeve body 6:

[0030] Welding connection: By welding the conical positioning sleeve 6 body 1 to the inner wall of the sleeve body 1, permanent fixation between the two can be achieved. During the welding process, it is necessary to control the welding temperature, welding speed and selection of welding materials to ensure welding quality. The welding connection has the advantages of high connection strength, good sealing and strong corrosion resistance. It can withstand large axial and radial loads to ensure the long-term stability of the connection.

[0031] Threaded connection: The tapered positioning sleeve 6 body 1 and the sleeve body 1 may be connected by threaded connection. By machining threads matching the tapered positioning sleeve 6 body 1 inside the sleeve body 1 and then tightening the two, the threaded connection has the advantages of easy disassembly and reliable connection. However, when subjected to large torque or vibration, additional locking devices may be required to prevent loosening.

[0032] Interference fit: An interference fit is a method of achieving connection by utilizing the elastic deformation between materials. During the manufacturing process, the main body 1 of the tapered positioning sleeve 6 is heated and expanded and then inserted into the sleeve main body 1. After it cools and shrinks, a tight fit is formed. The interference fit connection is simple, does not require additional fasteners, and has high connection strength and self-locking property. However, it requires high machining accuracy, and once assembled, it is not easy to disassemble.

[0033] As an important part of the connecting sleeve main body 1 for the steel bar main body 2, the selection of the material for the main body 1 of the tapered positioning sleeve 6 is crucial. Common materials for the main body 1 of the tapered positioning sleeve 6 include the following:

[0034] High-quality steel: Such as alloy steel, stainless steel, etc., which have high strength, hardness, and wear resistance, can withstand large axial and radial loads, and are widely used in fields such as construction engineering, bridge engineering, and tunnel engineering to ensure the stability and safety of the connection of the steel bar main body 2.

[0035] Special alloy materials: Some special alloy materials have higher corrosion resistance, high-temperature resistance, or low-temperature resistance, and are suitable for the connection of the steel bar main body 2 in special environments. In fields such as ocean engineering, chemical engineering, and aerospace, the main body 1 of the tapered positioning sleeve 6 made of these special alloy materials can ensure the stability and durability of the connection of the steel bar main body 2 in harsh environments.

[0036] In summary:

[0037] By adopting the precise docking of the main body 1 of the tapered positioning sleeve 6 and the tapered positioning groove 7 inside the sleeve main body 1 and the enhanced design of the spiral ribs, through the precise docking of the main body 1 of the tapered positioning sleeve 6 and the tapered positioning groove 7, high-precision connection between the steel bar main body 2 and the sleeve main body 1 is achieved, effectively reducing the docking error. At the same time, the enhanced design of the second spiral rib 8 and the first spiral rib 5 not only increases the friction force between the steel bar main body 2 and the sleeve main body 1, but also improves the adhesion between the grouting material and the inner wall of the sleeve main body 1, thus significantly enhancing the strength and durability of the connection of the steel bar main body 2. This design not only simplifies the construction operation, improves the construction efficiency, but also ensures the stability and safety of the connection of the steel bar main body 2 under various complex working conditions, which is of great significance for improving the overall quality and safety of construction projects.

[0038] In the present utility model, unless otherwise clearly stipulated and defined, the first feature being “above” or “below” the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being “above”, “over” and “on top of” the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being “below”, “beneath” and “underneath” the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will also have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A portable fully grouted sleeve for steel bar connection, comprising a sleeve body (1) and a steel bar body (2), characterized in that: Inside the sleeve body (1) near the central position, there are symmetrically arranged conical positioning sleeves (6). Inside the conical positioning sleeves (6), there are conical positioning grooves (7). The inner wall of the conical positioning grooves (7) is distributed with second spiral ribs (8). The inner wall of the conical positioning grooves (7) abuts against the end of the steel bar body (2). The steel bar body (2) penetrates through both ends of the sleeve body (1). The inner wall of the sleeve body (1) is provided with first spiral ribs (5).

2. The full grouting sleeve for portable steel bar connection according to claim 1, wherein: The surface of the second spiral ribs (8) abuts against the end of the steel bar body (2). The coverage range of the first spiral ribs (5) is the same as the length of the sleeve body (1).

3. The full grouting sleeve for convenient steel bar connection according to claim 1, characterized in that: At both ends of the sleeve body (1), there are respectively vertically penetrated with a grouting sleeve (3) and a slurry discharge sleeve (4), and both the grouting sleeve (3) and the slurry discharge sleeve (4) penetrate through the inside of the sleeve body (1).

4. A fully grouted sleeve for portable steel bar connection according to claim 1, characterized in that: The adjacent ends of the conical positioning sleeves (6) abut against each other. The conical positioning sleeves (6) are welded to the inner wall of the sleeve body (1).

5. A full-grouting sleeve for portable steel bar connection according to claim 1, characterized in that: The conical positioning grooves (7) penetrate through both ends of the conical positioning sleeves (6). The second spiral ribs (8) are distributed along the contour of the conical positioning grooves (7).

6. The full grouting sleeve for portable steel bar connection according to claim 1, characterized in that: The vertical center lines of the conical positioning sleeves (6), the vertical center lines of the conical positioning grooves (7) and the vertical center line of the sleeve body (1) coincide with each other.

7. A full grouting sleeve for portable steel bar connection according to claim 1, characterized in that: The outer edges of the sleeve body (1), the outer edges of the filling sleeves and the outer edges of the slurry discharge sleeves (4) are all treated by deburring.

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