Stable type semi-grouting sleeve for steel bar connection

Abstract

The stable type semi-grouting sleeve for steel bar connection comprises a material guide pipe installed on one side of a bottom sleeve, the right side of the bottom sleeve is fixedly connected with a first inner threaded pipe through an opening, and the periphery of the top end of the bottom sleeve is fixedly connected with a sealing guide frame. An annular sealing guide ring is installed on the inner side of the sealing guide frame in a sliding mode, and the top of the annular sealing guide ring is fixedly connected with a top sleeve used in cooperation with the bottom sleeve. According to the stable type semi-grouting sleeve for reinforcing steel bar connection, a sealing guide frame is installed at the top of the bottom sleeve, a top sleeve is installed on the inner side of the sealing guide frame through an annular sealing guide ring, and the stable type semi-grouting sleeve is used in cooperation with a positioning insertion rod and a round insertion opening; due to the arrangement of the structures, the two adjacent top sleeves can be connected through the threaded connectors and the material guide pipes, and material injection can be directly and simultaneously conducted on the two top sleeves in the subsequent material injection process.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a semi-grouting sleeve for stable steel bar connection. Background Technique

[0002] The traditional steel bar connection methods mainly include binding lap joint, mechanical connection and welding. However, with the development of modern building technology, the requirements for the production of steel bar cages are getting higher and higher, and the new requirements cannot be completed by the traditional steel bar connection methods. As a steel bar connecting piece, the grouting sleeve can well realize the connection of steel bars. The connection method is to insert the steel bars to be connected into the connecting sleeve, and then inject the mixed cement grouting material into the connecting sleeve to fill the gap between the connecting sleeve and the steel bars. After the cement grouting material hardens, it is tightly combined with the steel bars with transverse ribs on the surface and the connecting sleeve with grooves or protrusions on the inner wall into one body, connecting the two steel bars together.

[0003] When the existing semi-grouting sleeves are used, they need to be installed on the surface of each steel bar, so the quantity is very large. After the installation is completed, the staff needs to use the feeding pipe to connect with the feeding pipe at the bottom, and then inject the concrete into the inner side of the semi-grouting sleeve one by one. These methods make the whole process very cumbersome and inefficient. At the same time, when the steel bars are inserted into the semi-grouting sleeve from the top, they are unstable and inclined, which is likely to affect the quality after feeding.

[0004] Therefore, a semi-grouting sleeve for stable steel bar connection that can improve efficiency and stability is designed to solve such defects now. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a semi-grouting sleeve for stable steel bar connection, which solves the problems of cumbersome feeding and low stability of the existing semi-grouting sleeves.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A semi-grouting sleeve for stable steel bar connection includes a material guiding pipe installed on one side of the bottom sleeve. The right side of the bottom sleeve is fixedly connected with a first internal thread pipe through an opening. The outer periphery of the top of the bottom sleeve is fixedly connected with a sealing guide frame. An annular sealing guide ring is slidably installed inside the sealing guide frame. The top of the annular sealing guide ring is fixedly connected with a top sleeve that is used in cooperation with the bottom sleeve. One side of the top sleeve is fixedly connected with a second internal thread pipe through an opening.

[0007] Preferably, the material guiding pipe is located on the right side of the top sleeve. Both ends of the material guiding pipe are fixedly connected with thread joints that are used in cooperation with the second internal thread pipe. The left thread joint is located inside the second internal thread pipe.

[0008] Preferably, an annular seat is fixedly connected to the upper part of the surface of the bottom sleeve, and a circular socket is formed in the top of the annular seat, and a plurality of circular sockets are provided.

[0009] Preferably, a polygonal ring sleeve is fixedly connected to the inner side of the top sleeve, and a plurality of polygonal ring sleeves are provided. A positioning elastic piece is fixedly connected to the inner side of the polygonal ring sleeve.

[0010] Preferably, a chute plate is fixedly connected to the surface of the top sleeve, and a plurality of chute plates are arranged in a ring shape. A sliding ring is slidably installed between the inner sides of the plurality of chute plates, and a positioning insertion rod matched with the circular socket is fixedly connected to the bottom of the sliding ring.

[0011] Beneficial effects

[0012] The utility model provides a semi-grouting sleeve for stable steel bar connection. Compared with the existing technology, the following beneficial effects are achieved:

[0013] (1) For the semi-grouting sleeve for stable steel bar connection, a sealing guide frame is installed at the top of the bottom sleeve, and a top sleeve is installed inside the sealing guide frame by using an annular sealing guide ring. The positioning insertion rod and the circular socket are used in combination. The arrangement of these structures can connect two adjacent top sleeves by using a threaded joint and a material guiding pipe, so that when injecting materials subsequently, the two top sleeves can be directly and simultaneously injected with materials, effectively improving the efficiency of material injection. At the same time, the docking of the positioning insertion rod and the circular socket can ensure the stability of the two top sleeves during relative material injection, meeting the current use requirements.

[0014] (2) For the semi-grouting sleeve for stable steel bar connection, a plurality of polygonal ring sleeves are installed inside the top sleeve, and positioning elastic pieces are fixedly installed on the inner sides of the polygonal ring sleeves. The arrangement of these structures enables the steel bar to be inserted from the top, and the plurality of positioning elastic pieces can be engaged with the convex lines on the surface of the steel bar, thereby limiting and fixing the steel bar, ensuring that the steel bar will not tilt during subsequent material injection, and improving the engineering quality. Brief description of the drawings

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a schematic diagram of the structure of the sealing guide frame, annular seat and circular socket of the utility model;

[0017] Figure 3 is a sectional view of the structure of the top sleeve of the utility model;

[0018] Figure 4 is a schematic diagram of the structure of the polygonal ring sleeve and the positioning elastic piece of the utility model;

[0019] Figure 5 This is a schematic diagram of the chute plate, sliding ring and positioning plug rod structure of the present utility model.

[0020] In the figure: 1. Bottom sleeve; 2. First internal threaded pipe; 3. Sealing guide frame; 4. Top sleeve; 5. Annular sealing guide ring; 6. Second internal threaded pipe; 7. Multi-angle ring sleeve; 8. Positioning elastic piece; 9. Threaded joint; 10. Feeding pipe; 11. Annular seat; 12. Round socket; 13. Chute plate; 14. Sliding ring; 15. Positioning plug rod. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a semi-grouting sleeve for stable steel bar connection, including a feeding pipe 10 installed on one side of the bottom sleeve 1. The feeding pipe 10 is a flexible pipe. The right side of the bottom sleeve 1 is fixedly connected with a first internal threaded pipe 2 through an opening. The outer periphery of the top of the bottom sleeve 1 is fixedly connected with a sealing guide frame 3. An annular sealing guide ring 5 is slidably installed inside the sealing guide frame 3. There is an interference fit between the annular sealing guide ring 5 and the sealing guide frame 3, with friction and it needs to be twisted forcefully to rotate. The top of the annular sealing guide ring 5 is fixedly connected with a top sleeve 4 that is used in cooperation with the bottom sleeve 1. And one side of the top sleeve 4 is fixedly connected with a second internal threaded pipe 6 through an opening. The upper part of the surface of the bottom sleeve 1 is fixedly connected with an annular seat 11. The top of the annular seat 11 is provided with a round socket 12, and a plurality of round sockets 12 are provided. The inner side of the top sleeve 4 is fixedly connected with a multi-angle ring sleeve 7, and a plurality of multi-angle ring sleeves 7 are provided. The inner side of the multi-angle ring sleeve 7 is fixedly connected with a positioning elastic piece 8. The positioning elastic piece 8 is an elastic piece made of metal and can be slightly bent downward.

[0023] During use, first, a plurality of bottom sleeves 1 are sequentially sleeved on the surface of the bottom steel bars. Then, the sliding ring 14 is pushed upward by hand under the limitation of the chute plate 13, so that the positioning plug rod 15 is pulled out from the inside of the round socket 12. Then, under the limitation of the annular sealing guide ring 5 and the sealing guide frame 3, the top sleeve 4 is rotated so that the second internal threaded pipes 6 on the surfaces of two adjacent top sleeves 4 face each other. After the rotation is completed, the sliding ring 14 is pulled down to insert the positioning plug rod 15 into the inside of the round socket 12. At this time, the top sleeve 4 is fixed. Then, the threaded joint 9 and the second internal threaded pipes 6 on both sides are threadedly connected and the feeding pipe 10 is connected.

[0024] Further, the material guiding pipe 10 is located on the right side of the top sleeve 4. Threaded joints 9 that are used in cooperation with the second internal threaded pipe 6 are fixedly connected to both ends of the material guiding pipe 10. The threaded joints 9 can be disassembled when the material in the material guiding pipe 10 is almost solidified after the material guiding. The left threaded joint 9 is located inside the second internal threaded pipe 6. A chute plate 13 is fixedly connected to the surface of the top sleeve 4, and a plurality of chute plates 13 are arranged in a ring shape. A sliding ring 14 is slidably installed between the inner sides of the plurality of chute plates 13. A positioning insertion rod 15 that is used in cooperation with the circular socket 12 is fixedly connected to the bottom of the sliding ring 14.

[0025] Insert the steel bar from the top of the top sleeve 4. During the insertion process, the steel bar will squeeze a plurality of positioning elastic pieces 8, and the positioning elastic pieces 8 will bend downward so that the steel bar can enter the inside of the bottom sleeve 1. However, when the steel bar is pulled up, the positioning elastic pieces 8 will catch the convex lines on the surface of the steel bar for limit fixation. Subsequently, connect the injection pipe to the first internal threaded pipe 2 and inject concrete into the inside of the bottom sleeve 1. After the top sleeve 4 is filled with the concrete, it will flow into the adjacent top sleeve 4 and the inside of the bottom sleeve 1 through the material guiding pipe 10, thereby improving the injection efficiency.

[0026] Meanwhile, the content not described in detail in this specification belongs to the prior art well known to those skilled in the art.

Claims

1. A semi-grouting sleeve for stable steel bar connection, comprising a guide pipe (10) installed on one side of a bottom sleeve (1), characterized in that: The right side of the bottom sleeve (1) is fixedly connected to a first internally threaded tube (2) via an opening, the outer periphery of the top end of the bottom sleeve (1) is fixedly connected to a sealing guide frame (3), an annular sealing guide ring (5) is slidably mounted on the inner side of the sealing guide frame (3), the top of the annular sealing guide ring (5) is fixedly connected to a top sleeve (4) used in conjunction with the bottom sleeve (1), and one side of the top sleeve (4) is fixedly connected to a second internally threaded tube (6) via an opening.

2. A semi-grouting sleeve for stable steel bar connection according to claim 1, characterized in that: The material guide tube (10) is located on the right side of the top sleeve (4), and both ends of the material guide tube (10) are fixedly connected with threaded joints (9) used in conjunction with the second internally threaded tube (6), and the left threaded joint (9) is located on the inner side of the second internally threaded tube (6).

3. A semi-grouting sleeve for stable steel bar connection according to claim 1, characterized in that: An annular seat (11) is fixedly connected to the upper portion of the surface of the bottom sleeve (1), and a circular socket (12) is provided on the top of the annular seat (11), and a plurality of circular sockets (12) are provided.

4. A semi-grouting sleeve for stable steel bar connection according to claim 3, characterized in that: The inner side of the top sleeve (4) is fixedly connected with a polygonal ring sleeve (7), and a plurality of polygonal ring sleeves (7) are provided. The inner side of the polygonal ring sleeve (7) is fixedly connected with a positioning spring sheet (8).

5. A semi-grouting sleeve for stable steel bar connection according to claim 4, characterized in that: A slide plate (13) is fixedly connected to the surface of the top sleeve (4), and a plurality of slide plates (13) are arranged in a ring shape. A sliding ring (14) is slidably installed between the inner sides of the plurality of slide plates (13), and a positioning rod (15) used in conjunction with the round socket (12) is fixedly connected to the bottom of the sliding ring (14).

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