An auxiliary device for connecting threaded sleeves to ultra-long steel cages

Abstract

This utility model relates to the field of threaded sleeve connection technology for ultra-long steel cages, and discloses an auxiliary device for connecting ultra-long steel cages with threaded sleeves. It includes steel bars and a fixing ring. A connecting ring is fitted over the steel bar. One end of the steel bar is welded with a threaded rod, and the other end of the steel bar is fitted with an internally threaded cylinder via a connecting structure. The top of the internally threaded cylinder has an internally threaded groove, separating the fixing ring from the connecting rod. When the internally threaded cylinder is rotated, it drives the connecting rod to rotate via a connecting block. At this time, the fixing ring is separated from the connecting rod and will not rotate with it, thus avoiding significant friction between the fixing ring and the steel bar. After the threaded rod and internally threaded cylinder are connected in place, the fixing ring is pulled to align the insertion hole on the fixing ring with the tapered insertion rod. Then, a hammer is used to strike the fixing ring, causing the tapered insertion rod to tighten the fixing ring, thus providing auxiliary support for the two steel bars.

Description

Technical Field

[0001] This utility model relates to the field of threaded sleeve connection technology for ultra-long steel cages, specifically an auxiliary device for threaded sleeve connection of ultra-long steel cages. Background Technology

[0002] The threaded sleeve connection auxiliary device for extra-long steel cages is an auxiliary device used to connect extra-long steel cages. In building and foundation engineering, due to the need for relatively long steel cages to meet project requirements, the steel cages are usually manufactured in sections and then connected on site for ease of transportation and construction. The threaded sleeve connection auxiliary device for extra-long steel cages typically consists of two parts: a threaded sleeve and a connecting bolt. The threaded sleeve is installed at the connection end of the steel cage, and the connecting bolt connects the two steel cages together through the threaded sleeve. This connection auxiliary device simplifies the connection process, improves the accuracy and stability of the connection, and also saves construction time and labor costs.

[0003] Chinese patent CN221920021U discloses an auxiliary device for connecting threaded sleeves to ultra-long steel cages. This auxiliary device connects the threaded rod and the threaded sleeve with threads. After connection, two fixing rings contact the two steel bars respectively, and provide auxiliary fixation for the two steel bars during transportation. This solves the problem that existing devices do not have other fixing components, which causes the stress point to be concentrated at the connection point during transportation and placement, making the connection point prone to breakage and thus creating safety hazards.

[0004] However, in the aforementioned auxiliary device for connecting threaded sleeves to ultra-long steel cages, the fixing rod is fixedly connected to the threaded sleeve, while the fixing ring is fixedly connected to the fixing rod. When connecting the threaded rod and the threaded sleeve, the threaded sleeve needs to be rotated. When the threaded sleeve is rotated, the fixing rod will also rotate, which in turn drives the fixing ring to rotate. The rotation of the fixing ring will cause friction with the steel bar. Since the surface of the steel bar is often not smooth, this will result in greater resistance when rotating the threaded sleeve and may easily damage the fixing ring. Utility Model Content

[0005] The purpose of this utility model is to provide an auxiliary device for connecting threaded sleeves to ultra-long steel cages, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for connecting an ultra-long steel cage with a threaded sleeve, comprising a steel bar and a fixing ring. A connecting ring is fitted over the steel bar. A threaded rod is welded to one end of the steel bar, and an internally threaded cylinder is installed at the other end of the steel bar through a connecting structure. An internally threaded groove is formed at the top of the internally threaded cylinder, and the inner diameter of the internally threaded groove matches the outer diameter of the threaded rod. A connecting block is fixedly installed on the outer wall of the internally threaded cylinder, and a connecting rod is fixedly inserted into the connecting block. Limiting protrusions are fixedly installed at both ends of the connecting rod, and a tapered insert is fixedly installed at the end of the limiting protrusion away from the connecting rod. The fixing ring is slidably fitted onto the steel bar, and the inner wall of the fixing ring contacts the outer wall of the steel bar. An insertion hole corresponding to the tapered insert is formed on the fixing ring, and the tapered insert is inserted through the insertion hole, and then the fixing ring is tightened.

[0007] Furthermore, the connection structure includes a welding plate, a rotating groove, and a rotating block. The welding plate is welded to the end of the reinforcing bar, the rotating groove is opened at the bottom of the internally threaded cylinder, and the rotating block is fixedly installed on the welding plate and is rotatably disposed in the rotating groove.

[0008] Furthermore, the inner diameter of the rotating groove is slightly larger than the outer diameter of the rotating block, and both the rotating groove and the rotating block have a T-shaped cross-section.

[0009] Furthermore, a groove is provided at the top of the internally threaded cylinder, and a pad is fixedly fitted at the weld joint between the threaded rod and the reinforcing bar, with the outer diameter of the pad matching the inner diameter of the groove.

[0010] Furthermore, the edge of the fixing ring is provided with an integrally formed extension protrusion, and the fixing ring is provided with four insertion holes and four extension protrusions.

[0011] Furthermore, the outer wall of the internally threaded cylinder is fitted with a hexagonal sleeve, which is simultaneously fixedly connected to all the connecting rods, and the outer wall of the hexagonal sleeve is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Set the fixing ring and connecting rod separately. When the internal threaded cylinder is rotated, the internal threaded cylinder drives the connecting rod to rotate through the connecting block. At this time, the fixing ring and the connecting rod are separated, and the fixing ring will not rotate together, thus avoiding significant friction between the fixing ring and the steel bar. After the threaded rod and internal threaded cylinder are connected in place, pull the fixing ring to align the insertion hole on the fixing ring with the tapered insertion rod and insert it. Then use a hammer to tap the fixing ring so that the tapered insertion rod presses the fixing ring tightly, which can achieve the purpose of assisting in supporting the two steel bars.

[0014] 2. After the welding piece is welded to the end of the reinforcing bar, the rotating block set in the rotating groove connects the internal threaded cylinder and the welding piece together. This means that when the internal threaded cylinder is rotated to connect the threaded rod, it is not necessary to rotate the entire reinforcing bar together, which can greatly reduce the workload. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the reinforcing bar and threaded rod of this utility model;

[0017] Figure 3 This is a structural schematic diagram of the internal threaded cylinder, connecting rod, and retaining ring of this utility model;

[0018] Figure 4 This utility model Figure 3 A structural schematic diagram of the front sectional view;

[0019] Figure 5 This utility model Figure 3 Exploded view of the structure;

[0020] Figure 6 This is a structural schematic diagram of the hexagonal sleeve, connecting rod, limiting protrusion, and tapered insert of this utility model.

[0021] In the diagram: 1. Rebar; 2. Connecting ring; 3. Threaded rod; 4. Welded piece; 5. Internal threaded cylinder; 501. Internal threaded groove; 6. Rotating groove; 7. Rotating block; 8. Connecting block; 9. Groove; 10. Pad; 11. Connecting rod; 12. Fixing ring; 13. Insertion hole; 14. Extension protrusion; 15. Limiting protrusion; 16. Tapered insert rod; 17. Hexagonal sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figures 1-6 This utility model provides a technical solution: an auxiliary device for connecting an ultra-long steel cage threaded sleeve, including an internal threaded sleeve 5, a fixing ring 12 and a connecting rod 11; multiple connecting blocks 8 are arranged side by side in the circumferential direction on the outer wall of the internal threaded sleeve 5, and multiple connecting rods 11 pass through the connecting blocks in sequence and surround the periphery of the internal threaded sleeve 5.

[0024] The two fixing rings 12 are respectively located at both ends of the internal threaded cylinder 5, and the fixing rings 12 are fixedly connected to the connecting rod 11; the outer diameter of the internal threaded cylinder 5 is adapted to the outer diameter of the reinforcing bar 1, and the internal threaded cylinder 5 is installed at one end of the reinforcing bar 1 through a connecting structure.

[0025] Furthermore, the other end of the reinforcing bar 1 is provided with a threaded rod 3, and the internal threaded cylinder 5 is provided with an internal threaded groove 501 that is adapted to the threaded rod 3; the threaded rod 3 of one reinforcing bar 1 is threadedly installed into the internal threaded groove 501 of another reinforcing bar 1, and the two fixing rings 12 are respectively installed on the two reinforcing bars 1.

[0026] Furthermore, a limiting protrusion 15 is fixedly installed at the end of the connecting rod 11, and a tapered insert 16 is fixedly installed at the end of the limiting protrusion 15 away from the connecting rod 11; the fixing ring 12 is slidably sleeved on the reinforcing bar 1, and the fixing ring 12 has an insertion hole 13 adapted to the tapered insert 16; the tapered insert 16 and the insertion hole 13 are interference-fitted to fix the fixing ring 12 to the end of the connecting rod 11.

[0027] like Figure 1 As shown, the extra-long steel cage includes multiple steel bars 1 arranged side by side in a circular pattern. These steel bars are fixedly connected by connecting rings 2. Multiple connecting rings 2 are evenly distributed along the length of the steel bars 1. In this invention, when installing two steel bars 1, the fixing rings 12 and connecting rods 11 are separated. The two fixing rings 12 are respectively fitted onto the two steel bars 1. Then, the internal threaded cylinder 5 is installed at the end of one of the steel bars 1 furthest from the threaded rod 3 via a connecting structure. Finally, the threaded rod 3 of the other steel bar 1 is threadedly installed into the internal threaded groove 50 of the internal threaded cylinder 5. 1. Specifically, when the internal threaded cylinder 5 is rotated, the internal threaded cylinder 5 drives the connecting rod 11 to rotate through the connecting block 8. At this time, since the fixing ring 12 is separated from the connecting rod 11, the fixing ring 12 will not rotate together, thus avoiding significant friction between the fixing ring 12 and the reinforcing bar 1. After the threaded connection between the threaded rod 3 and the internal threaded cylinder 5 is in place, the fixing ring 12 is pulled so that the insertion hole 13 on the fixing ring 12 is aligned with the tapered insertion rod 16 and inserted. Then, the fixing ring 12 is struck with a hammer so that the tapered insertion rod 16 presses the fixing ring 12 tightly, which can achieve the purpose of assisting in supporting the two reinforcing bars 1.

[0028] Furthermore, the connection structure includes a welding piece 4, a rotating groove 6, and a rotating block 7; the welding piece 4 is welded to the end of the reinforcing bar 1, and the rotating groove 6 is opened at the end of the internally threaded cylinder 5; the rotating block 7 is fixedly installed on the welding piece 4, and the rotating block 7 is rotatably installed on the rotating groove 6.

[0029] In this embodiment, the rotating block 7 set in the rotating groove 6 connects the internal threaded cylinder 5 and the welding piece 4 together, so that when the internal threaded cylinder 5 is rotated to connect the threaded rod 3, it is not necessary to rotate the entire steel bar 1 together, which can greatly reduce the workload.

[0030] Furthermore, the inner diameter of the rotating groove 6 is larger than the outer diameter of the rotating block 7, and the cross-sections of both the rotating groove 6 and the rotating block 7 are T-shaped.

[0031] In this invention, the inner diameter of the rotating groove 6 is slightly larger than the outer diameter of the rotating block 7, so that the position of the internal threaded cylinder 5 can be offset relative to the reinforcing bar 1. When connecting two reinforcing bars 1, a certain positional deviation between the two reinforcing bars 1 is allowed, further reducing the workload during connection. After connection, the two reinforcing bars 1 are aligned and fixed by installing the fixing ring 12. The cross-sections of the rotating groove 6 and the rotating block 7 are both T-shaped, which can prevent the rotating block 7 from detaching from the rotating groove 6.

[0032] Furthermore, a groove 9 is provided at the end of the internally threaded cylinder 5 away from the connecting structure. The groove 9 is used to install the pad 10, and the outer diameter of the pad 10 matches the inner diameter of the groove 9.

[0033] Specifically, the top of the internal threaded cylinder 5 is provided with a groove 9, and a pad 10 is fixedly sleeved at the weld joint between the threaded rod 3 and the reinforcing bar 1. The outer diameter of the pad 10 matches the inner diameter of the groove 9. After the upper and lower reinforcing bars 1 are connected, the pad 10 is inserted into the groove 9 to provide positioning and prevent the upper and lower reinforcing bars 1 from shifting positions.

[0034] Furthermore, the edge of the fixing ring 12 is provided with an integrally formed extension protrusion 14, and the number of the insertion hole 13 and the extension protrusion 14 on the fixing ring 12 are both four.

[0035] In this embodiment, the edge of the fixing ring 12 is provided with an integrally formed extension protrusion 14, which increases the position of the fixing ring 12 that can be hammered, so that the worker can better strike the fixing ring 12. The fixing ring 12 is provided with four insertion holes 13 and four extension protrusions 14. Multiple insertion holes 13 are used to increase the connection part with the tapered insertion rod 16, so that the fixing of the fixing ring 12 is sufficiently stable, and multiple extension protrusions 14 make it convenient for the worker to strike the fixing ring 12.

[0036] Furthermore, the outer wall of the internally threaded cylinder 5 is fitted with a hexagonal sleeve 17, the hexagonal sleeve 17 is provided with a connecting groove adapted to the connecting rod 11, the connecting rod 11 passes through the connecting groove, and the outer wall of the hexagonal sleeve 17 is provided with anti-slip texture.

[0037] In this utility model, a hexagonal sleeve 17 is fitted on the outer wall of the internal threaded cylinder 5. The hexagonal sleeve 17 is fixedly connected to all the connecting rods 11. The outer wall of the hexagonal sleeve 17 is provided with anti-slip texture. The hexagonal sleeve 17 is provided so that the worker can use a wrench to rotate the hexagonal sleeve 17, thereby rotating the internal threaded cylinder 5, so that the connection between the internal threaded cylinder 5 and the threaded rod 3 is sufficiently stable.

[0038] In use, the two fixing rings 12 are respectively fitted onto the upper and lower reinforcing bars 1. Then, the threaded rod 3 of the upper reinforcing bar 1 is aligned with the inner thread groove 501. The inner threaded cylinder 5 is rotated so that the threaded rod 3 is screwed into the inner thread groove 501. After the threaded rod 3 is screwed into place, the fixing ring 12 is pulled so that the insertion hole 13 on the fixing ring 12 is aligned with the conical insertion rod 16. Then, the fixing ring 12 or the extension protrusion 14 is tapped to make the conical insertion rod 16 tightly push into the insertion hole 13, thus completing the installation of the fixing ring 12. At this time, the connecting rod 11, the fixing ring 12, the limiting protrusion 15, and the conical insertion rod 16 form an auxiliary structure to support the upper and lower reinforcing bars 1.

[0039] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An ultra-long reinforcement cage threaded sleeve connection aid characterised in that: Includes an internally threaded cylinder, a retaining ring, and a connecting rod; Multiple connecting blocks are arranged side by side in the circumferential direction on the outer wall of the internally threaded cylinder, and multiple connecting rods pass through the connecting blocks in sequence and surround the periphery of the internally threaded cylinder. The two retaining rings are located at both ends of the internally threaded cylinder, and the retaining rings are fixedly connected to the connecting rod; The outer diameter of the internally threaded cylinder is adapted to the outer diameter of the reinforcing bar, and the internally threaded cylinder is installed at one end of the reinforcing bar through a connecting structure.

2. A threaded sleeve connection aid device for use with a super long reinforcement cage according to claim 1, characterized in that: The other end of the reinforcing bar is provided with a threaded rod, and the internal threaded cylinder is provided with an internal threaded groove that is adapted to the threaded rod; The threaded rod of the reinforcing bar is threaded into the internal thread groove of another reinforcing bar, and the two fixing rings are respectively installed on the two reinforcing bars.

3. A threaded sleeve connection aid device for use with a super long reinforcement cage according to claim 1, characterized in that: A limiting protrusion is fixedly installed at the end of the connecting rod, and a tapered insert is fixedly installed at the end of the limiting protrusion away from the connecting rod. The fixing ring is slidably sleeved on the reinforcing bar, and the fixing ring has a hole that matches the tapered insert. The tapered insert and the insertion hole are interference-fitted to fix the retaining ring to the end of the connecting rod.

4. The extra-long reinforcement cage threaded sleeve connection aid device according to claim 1, characterized in that: The connection structure includes a welding piece, a rotating groove, and a rotating block; The welding piece is welded to the end of the reinforcing bar, and the rotating groove is formed at the end of the internally threaded cylinder; The rotating block is fixedly installed on the welding piece, and the rotating block is rotatably installed in the rotating groove.

5. The auxiliary device for connecting threaded sleeves of ultra-long steel cages according to claim 4, characterized in that: The inner diameter of the rotating groove is larger than the outer diameter of the rotating block, and both the rotating groove and the rotating block have a T-shaped cross-section.

6. The auxiliary device for connecting threaded sleeves to ultra-long steel cages according to claim 4, characterized in that: The end of the internally threaded cylinder away from the connecting structure has a groove for mounting a pad, and the outer diameter of the pad matches the inner diameter of the groove.

7. The auxiliary device for connecting threaded sleeves to ultra-long steel cages according to claim 3, characterized in that: The edge of the fixing ring is provided with an integrally formed extended protrusion, and the number of the insertion holes and the extended protrusions on the fixing ring are both four.

8. The auxiliary device for connecting threaded sleeves to ultra-long steel cages according to claim 1, characterized in that: The outer wall of the internally threaded cylinder is fitted with a hexagonal sleeve, the hexagonal sleeve has a connecting groove adapted to the connecting rod, the connecting rod passes through the connecting groove, and the outer wall of the hexagonal sleeve is provided with anti-slip texture.

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