Reinforcing steel bar penetrating sleeve tool for reinforcing steel bar dense area

Abstract

The invention discloses a reinforcement penetrating sleeve tool for a reinforcement dense area, and relates to the technical field of reinforced concrete construction. Comprising a rebar penetrating sleeve tool, a tightening mechanism and a traction mechanism, the rebar penetrating sleeve tool is composed of a front sleeve A and a rear sleeve B which are in threaded connection, the front sleeve A is provided with a circular-truncated-cone-shaped closing-in section, and the tightening mechanism is matched with a circular ring through a steel wire rope, achieves winding tightening of rebars, prevents falling off and can adapt to rebars with different diameters; the traction mechanism is composed of a 9-shaped steel bar and a solid steel ball and can efficiently guide the steel bar to penetrate through a dense area. The steel bar penetrating device is simple in structure, low in cost, capable of completing steel bar penetrating operation in multiple layers of steel bar meshes at a time, capable of remarkably improving construction efficiency and reducing manual operation difficulty and safety risks and suitable for construction of steel bar dense areas such as beam-column joints and bridge bottom webs.

Description

Technical Field

[0001] The invention relates to the technical field of engineering construction reinforced concrete structure construction, in particular to a steel bar threading sleeve for a densely reinforced area. Background Art

[0002] Construction in areas with dense reinforcement is a common and challenging issue in engineering construction. As designs become increasingly complex, reinforcement is increasingly densely arranged to meet various requirements, such as structural load-bearing capacity and seismic resistance. In certain special locations, such as beam-column joints and the bottom, web, and top plates of highway and railway beams, reinforcement is often very dense. Construction in these locations often presents numerous difficulties. Manual rebar threading requires operators to spend considerable time adjusting the position of the rebar within a confined space, attempting to thread it through the dense mesh. This repetitive process significantly slows construction progress. Due to the small spacing between the rebar, the forced insertion process can easily damage the ribs on the rebar surface, compromising the bond between the rebar and the concrete, and thus reducing the overall performance of the reinforced concrete structure. Construction workers also face fatigue during extended rebar threading operations within a limited working space, restricting their posture and increasing the likelihood of accidents such as bruises and sprains. Summary of the Invention

[0003] The present invention provides a reinforcing bar insertion sleeve for a densely reinforced steel bar area in order to solve the problems of difficulty, low efficiency and easy injury to personnel in traditional manual reinforcing bar insertion construction.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a reinforcing bar sleeve for a densely reinforced area, comprising a reinforcing bar sleeve, a tightening mechanism C and a pulling mechanism D; The reinforcing sleeve comprises a front sleeve A and a rear sleeve B, wherein the diameter of the front sleeve A is smaller than the diameter of the rear sleeve B; One end of the front sleeve A is an external thread end, and the diameter of the other end is gradually reduced to form a truncated cone-shaped closing section. The outer wall of the front sleeve A from the external thread end to the position close to the truncated cone-shaped closing section is provided with external threads; One end of the rear sleeve B is an internal thread end, and the other end is a non-thread end. The inner side wall of the rear sleeve B from the internal thread end to the position close to the non-thread end is provided with internal threads matching the external threads. The tightening mechanism C includes two rings, one of which is mounted on the inner wall of the non-threaded end of the rear sleeve B, and the other is mounted on the inner wall of the externally threaded end of the front sleeve A, with a steel wire rope connected between the two rings; The traction mechanism D includes a solid steel ball arranged at the truncated cone-shaped closing section of the front sleeve A. A traction hook is welded on the solid steel ball, and the annular hook end of the traction hook is located outside the truncated cone-shaped closing section.

[0005] As a further limitation of the technical solution of the present invention, the end of the front sleeve A without threads is cut into six equal parts, the cutting removal area is removed, the cutting retention triangle area is retained, and a truncated cone-shaped closing section is formed by hammering, welding, cutting and grinding.

[0006] As a further limitation of the technical solution of the present invention, the end of the steel wire rope is connected to the ring through a steel wire rope lock.

[0007] As a further limitation of the technical solution of the present invention, the diameter of the solid steel ball is 20 mm, and the traction hook is made of φ8 mm HRB400 steel bar. One end of the φ8 mm HRB400 steel bar is welded to the solid steel ball, and the other end extends out of the truncated cone-shaped closing section and is then bent into a ring hook.

[0008] As a further limitation of the technical solution of the present invention, the diameter of the steel wire rope is 2 mm.

[0009] In addition, the present invention also provides a method for using the above-mentioned steel bar dense area reinforcing bar sleeve, comprising the following steps: (1) Insert the steel bar to be threaded into the front sleeve A and the rear sleeve B, rotate the front sleeve A so that the front sleeve A is screwed into the rear sleeve B. At the same time, due to the rotation of the front sleeve A, the wire rope 8 is wound around the outside of the steel bar to be threaded, and the tightening mechanism C tightens the steel bar; (2) Align the rebar insertion sleeve with the target rebar insertion position, push the tail of the rebar or use the traction mechanism D to pull the rebar through the dense rebar mesh; (3) After completing the reinforcing bar insertion, rotate the front sleeve A and the rear sleeve B in the opposite direction, remove the reinforcing bar sleeve and reuse it.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The steel bar threading sleeve for densely reinforced areas of the present invention can be processed with materials from the construction site. The tooling materials are common in construction, the production is simple and quick, and the cost is low. It has a compact structure and is easy to use. It is simple and easy to use and has strong practicality. It is equipped with a traction mechanism, which makes construction more efficient. It is equipped with a tightening mechanism, which can tighten "handle-shaped small bundles of small-diameter steel bars, single and multiple large-diameter or different-diameter steel bars" at one time, making it convenient for the steel bar bundle to be threaded through double or multiple layers of steel bars in dense areas, and has high adaptability. It can reduce the difficulty of construction operations, improve efficiency, and reduce the problem of personnel being easily injured. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the steel bar dense area threading sleeve of the present invention.

[0012] Figure 2 It is a structural schematic diagram of the rear sleeve B.

[0013] Figure 3 It is a structural schematic diagram of the front sleeve A.

[0014] Figure 4 This is a schematic diagram of the processing of the front sleeve A.

[0015] Figure 5 It is a structural diagram of the traction mechanism D.

[0016] Figure 6 Schematic diagram of the structure of the tightening mechanism C.

[0017] Figure 7 This is a schematic diagram of the use of the reinforcement sleeve in a densely reinforced area of ​​the present invention.

[0018] The following are marked in the figure: 1-external thread end, 2-truncated cone-shaped closing section, 3-external thread, 4-internal thread end, 5-unthreaded end, 6-internal thread, 7-ring, 8-wire rope, 9-solid steel ball, 10-traction hook, 11-cutting retention triangle area, 12-cutting removal area, 13-wire rope lock, 14-rebar head, 15-rebar tail, 16-upper steel mesh, 17-lower steel mesh, 18-pipe diameter reduction cut, A-front sleeve, B-rear sleeve, C-tightening mechanism, D-traction mechanism. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments. Example 1

[0020] like Figure 1 As shown, a reinforcing bar sleeve for a densely reinforced area includes a reinforcing bar sleeve, a tightening mechanism C and a pulling mechanism D; like Figure 2 and 3 As shown, the reinforcing sleeve includes a front sleeve A and a rear sleeve B, and the diameter of the front sleeve A is smaller than the diameter of the rear sleeve B; One end of the front sleeve A is an external thread end 1, and the other end is tapered to form a truncated cone-shaped closing section 2. The outer wall of the front sleeve A from the external thread end 1 to the position near the truncated cone-shaped closing section 2 is provided with external threads 3. One end of the rear sleeve B is an internal threaded end 4, and the other end is a non-threaded end 5. The inner side wall of the rear sleeve B from the internal threaded end 4 to the position near the non-threaded end 5 is provided with an internal thread 6 matching the external thread 3; the front sleeve A and the rear sleeve B are tightly connected by internal and external threads, and after the connection, the wire rope 8 is wrapped around the internal steel bars of the sleeve to form a tightening effect.

[0021] like Figure 6 As shown, the tightening mechanism C includes two rings 7, one of which is mounted on the inner wall of the non-threaded end 5 of the rear sleeve B, and the other is mounted on the inner wall of the externally threaded end 1 of the front sleeve A. A steel wire rope 8 is connected between the two rings 7; like Figure 5 As shown, the traction mechanism D includes a solid steel ball 9 arranged at the truncated cone-shaped closing section 2 of the front sleeve A, and a traction hook 10 is welded on the solid steel ball 9. The annular hook end of the traction hook 10 is located outside the truncated cone-shaped closing section 2.

[0022] Further, such as Figure 4 As shown, the end of the front sleeve A without threads is cut into six equal parts, the cutting removal area 12 is removed, and the cutting retention triangle area 11 is retained, and then hammered, welded, cut, and polished to form a truncated cone-shaped closing section 2.

[0023] Furthermore, the end of the steel wire rope 8 is connected to the ring 7 via a steel wire rope lock buckle 13 .

[0024] Furthermore, the diameter of the solid steel ball 9 is 20 mm, and the traction hook 10 is made of φ8 mm HRB400 steel bar. One end of the φ8 mm HRB400 steel bar is welded to the solid steel ball 9, and the other end extends out of the truncated cone-shaped closing section 2 and is bent into a ring hook for connecting the traction rope.

[0025] Furthermore, the diameter of the steel wire rope 8 is 2 mm.

[0026] Assembly of steel bar sleeves in densely reinforced areas: Select materials according to the plan for threading steel bars in densely reinforced areas, and then classify and select sufficient materials, such as 48*3.5mm steel pipes, 20mm diameter steel balls, φ8 HRB400 steel bars, φ2mm steel wire ropes, and wire rope locks.

[0027] The manufacturing process of steel bar sleeve in dense steel bar area is as follows: (1) Reinforcement sleeve Rear sleeve B ( Figure 2 ): One end of the steel pipe is processed into a non-threaded end 5, and the other end is processed into an internal thread, and a circular ring 7 is welded to the inner wall of the non-threaded end 5 for connecting the tightening mechanism.

[0028] Front sleeve A ( Figure 3 ): Place the steel pipe as Figure 4 The lower end is cut to form a diameter reduction cut, and after hammering, welding, cutting, grinding, and processing of external threads 3, it matches the internal threads 6 of the rear sleeve B; the other end is processed into a truncated cone-shaped closing section 2, which is connected to the front sleeve A ( Figure 4 ) After the upper end of the steel pipe is divided into six equal parts, the cutting removal area 12 is removed and the cutting retention triangle area 11 is retained. After hammering, welding, cutting and grinding, the top cone is cut off to form an opening; ensure that the threaded connection between the front sleeve A and the rear sleeve B is tight and consistent; in the front sleeve A ( Figure 4 ) A circular ring 7 is welded to the inner wall of the external thread end 1.

[0029] (2) Tightening mechanism C like Figure 6 As shown: before the front sleeve A and the rear sleeve B are connected, the wire rope 8 is passed through the ring 7 and the wire rope 8 is tied and fixed by the wire rope lock 13. After the front sleeve A and the rear sleeve B are screwed together, the wire rope 8 will cleverly wrap around and tighten the steel bars to be passed through, and also prevent the steel bar passing sleeve from falling off and the steel bars from being scattered during the rebar passing operation.

[0030] (3) Traction mechanism D like Figure 5 As shown: one end of the φ8 HRB400 steel bar is welded to the steel ball 9, and after passing through the opening of the truncated cone-shaped closing section 2 of the front sleeve A, the other end of the steel bar is bent and processed into a "9"-shaped traction hook 10.

[0031] 2. Construction operation process, such as Figure 7 As shown, Step 1: Insert the front end of the steel bar to be bundled into the sleeve, twist the front sleeve A and the rear sleeve B, and the front sleeve A is screwed into the rear sleeve B. At the same time, due to the rotation of the front sleeve A, the wire rope 8 is wrapped around the outside of the steel bar to be bundled, that is, the tightening mechanism C tightens the steel bar, and the sleeve is placed in the dense steel mesh, so that the opening of the truncated cone-shaped closing section 2 is aligned with the target reinforcement insertion position.

[0032] Step 2: Push the tail 15 of the steel bar to be threaded through the bundle to pass it from one end between the upper steel mesh 16 and the lower steel mesh 17 to the target position; when the steel bar to be threaded is long, a nylon rope or the like can be tied to the "9"-shaped ring of the "9"-shaped traction hook 10, and the other end of the rope can be pulled to the end of the reinforcement threading operation area. By pulling the rope and pushing the tail 15 of the steel bar, the steel bar can be threaded to the target reinforcement threading position.

[0033] Step 3: After completing the threading, rotate the front sleeve A and the rear sleeve B in reverse, remove the set and reuse it.

Claims

1. A steel bar threading sleeve for a dense steel bar area, characterized in that: It includes a reinforcing sleeve, a tightening mechanism (C) and a traction mechanism (D); The reinforcing sleeve comprises a front sleeve (A) and a rear sleeve (B), wherein the diameter of the front sleeve (A) is smaller than that of the rear sleeve (B); One end of the front sleeve (A) is an external thread end (1), and the diameter of the other end is gradually reduced to form a truncated cone-shaped closing section (2). The outer wall of the front sleeve A from the external thread end (1) to the position close to the truncated cone-shaped closing section (2) is provided with external threads (3); One end of the rear sleeve (B) is an internal thread end (4), and the other end is a non-thread end (5). The inner side wall of the rear sleeve (B) from the internal thread end (4) to the position close to the non-thread end (5) is provided with an internal thread (6) matching the external thread (3); The tightening mechanism (C) comprises two circular rings (7), one of which is mounted on the inner wall of the non-threaded end (5) of the rear sleeve (B), and the other circular ring (7) is mounted on the inner wall of the externally threaded end (1) of the front sleeve (A), with a steel wire rope (8) connected between the two circular rings (7); The traction mechanism (D) comprises a solid steel ball (9) arranged at the truncated cone-shaped closing section (2) of the front sleeve (A), a traction hook (10) being welded to the solid steel ball (9), and an annular hook end of the traction hook (10) being located outside the truncated cone-shaped closing section (2).

2. A steel bar dense area threading sleeve according to claim 1, characterized in that: The end of the front sleeve (A) without a thread is cut into six equal parts, the cutting removal area (12) is removed, the cutting retention triangle area (11) is retained, and a truncated cone-shaped closing section (2) is formed by hammering, welding, cutting, and grinding.

3. A steel bar threading sleeve for densely reinforced areas according to claim 1, characterized in that: The end of the steel wire rope (8) is connected to the ring (7) via a steel wire rope lock buckle (13).

4. The steel bar threading sleeve for densely reinforced areas according to claim 1, characterized in that: The diameter of the solid steel ball (9) is 20 mm, and the traction hook (10) is made of φ8 mm HRB400 steel bar. One end of the φ8 mm HRB400 steel bar is welded to the solid steel ball (9), and the other end extends out of the truncated cone-shaped closing section (2) and is then bent into a ring hook.

5. A steel bar threading sleeve for densely reinforced areas according to claim 1, characterized in that: The diameter of the steel wire rope (8) is 2 mm.

6. A method for using the steel bar dense area threading sleeve according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Insert the steel bar to be threaded into the front sleeve (A) and the rear sleeve (B), rotate the front sleeve (A) so that the front sleeve (A) is screwed into the rear sleeve (B), and at the same time, due to the rotation of the front sleeve (A), the steel wire rope (8) is wound around the outside of the steel bar to be threaded, so that the tightening mechanism (C) tightens the steel bar; S2. Align the reinforcing bar sleeve with the target reinforcing bar insertion position, push the tail of the reinforcing bar (15) or use the pulling mechanism (D) to pull the reinforcing bar through the dense reinforcing bar mesh; S3. After completing the reinforcing bar insertion, rotate the front sleeve (A) and the rear sleeve (B) in opposite directions, remove the reinforcing bar sleeve and reuse it.

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