Recycling joint device and recycling method for steel cage suspension bars

Abstract

The present invention provides a recovery joint device and recovery method for steel cage suspension bars, which include: a T-shaped connecting rod, the vertical rod of the T-shaped connecting rod is used to connect with the steel cage; a sleeve, the two ends of the sleeve are respectively connected with a first circular plate and a second circular plate, the first circular plate is provided with a first opening for the cross bar of the T-shaped connecting rod to pass through, and the sleeve is provided with a limiter for limiting the rotation of the cross bar; a connecting rod, one end of the connecting rod is connected to the second circular plate, and the other end of the connecting rod is used to connect with the suspension bars. The recovery joint device and recovery method for steel cage suspension bars of the present invention can connect the steel cage and the suspension bars, and realize the recovery of the suspension bars, saving construction costs.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a recovery joint device and a recovery method for steel cage suspension bars. Background Art

[0002] During the construction of bored piles, there may be a situation where the designed elevation of the pile top is much lower than the ground elevation. Therefore, when lowering the steel cage, it is necessary to use hangers to place the steel cage. When the steel cage is lowered, the hangers are subject to the downward gravity and the upward buoyancy when the concrete is poured. The concrete pouring conduit needs to be inserted into the middle of the steel cage. Therefore, in general, two hangers are symmetrically welded at the two ends of the top of the steel cage to lower the steel cage to the designed elevation. The length of the hangers varies from a few meters to tens of meters.

[0003] When there are a large number of bored piles, the amount of hanger bars used is hundreds of tons and cannot be recycled. They can only be recycled after excavation. However, the hanger bars are easily broken or bent during the excavation process, losing their utilization value, which will greatly increase the construction cost. Summary of the invention

[0004] In view of the above situation, the present invention provides a recovery joint device and a recovery method for the suspension bars of a steel cage, which can recover the suspension bars and reduce construction costs.

[0005] To achieve the above object, the technical solution adopted by the present invention is to provide a recovery joint device for a reinforcement cage suspension bar, which comprises:

[0006] A T-shaped connecting rod, the vertical rod of which is used to connect with the steel cage;

[0007] A sleeve, wherein the two ends of the sleeve are respectively connected to a first circular plate and a second circular plate, the first circular plate is provided with a first opening for the cross bar of the T-shaped connecting rod to pass through, and a limiter for limiting the rotation of the cross bar is provided in the sleeve;

[0008] A connecting rod, one end of which is connected to the second circular plate, and the other end of which is used to be connected to the suspension rod.

[0009] Preferably, the limiting member comprises a third circular plate arranged in the middle of the sleeve, the third circular plate is provided with a second opening for the cross bar of the T-shaped connecting rod to pass through, and the second opening is arranged at a certain angle to the first opening.

[0010] Preferably, the limiting member also includes a first limiting plate arranged on both sides of the first opening and a second limiting plate arranged on both sides of the second opening, the two first limiting plates are respectively arranged at both ends of the first opening, and a space for limiting the rotation of the cross bar of the T-shaped connecting rod is formed between the two first limiting plates, and the two second limiting plates are respectively arranged at both ends of the second opening, and a space for limiting the rotation of the cross bar of the T-shaped connecting rod is formed between the two second limiting plates.

[0011] Preferably, the first opening is sealed with a metal foil.

[0012] The present invention provides a recovery method of a recovery joint device using a steel cage suspension bar, comprising the following steps:

[0013] Provide a recovery joint device for the reinforcement cage suspension bar, insert the cross bar of the T-shaped connecting rod into the first circular plate of the sleeve through the first opening, rotate the T-shaped connecting rod so that the cross bar is set at a certain angle to the first opening, and use the limiting member to limit and fix the cross bar;

[0014] The vertical rods of the T-shaped connecting rods are symmetrically connected to the longitudinal bars of the steel cage, and one end of the connecting rods is connected to the suspension bars;

[0015] Lower the steel cage;

[0016] Use concrete to cast the reinforcement cage;

[0017] After the concrete pouring is completed, the limiting effect of the limiter is removed, and the hanger bar is rotated so that the cross bar of the T-shaped connecting rod passes through the first opening to complete the separation of the hanger bar and the steel cage.

[0018] A further improvement of the recovery method of the recovery joint device of the steel cage suspension bar of the present invention is that the stopper comprises a third circular plate arranged in the middle of the sleeve, the third circular plate is provided with a second opening for the cross bar of the T-shaped connecting rod to pass through, and the second opening is arranged at a certain angle to the first opening;

[0019] After the cross bar of the T-shaped connecting rod is inserted into the first circular plate of the sleeve through the first opening, the T-shaped connecting rod is rotated to allow the cross bar to pass through the second opening and into the third circular plate.

[0020] A further improvement of the recycling method of the recycling joint device of the reinforcement cage suspension bar of the present invention is that a metal foil is sealed on the first opening;

[0021] After the crossbar of the T-shaped connecting rod is inserted into the first circular plate of the sleeve through the first opening, a metal foil is sealed on the first opening.

[0022] The beneficial effects of the present invention are that in a recovery joint device for a steel cage hanging bar of the present invention, a connecting rod is connected to the second circular plate of the casing, and the connecting rod is connected to the hanging bar; a T-shaped connecting rod is fixed at the upper limit position on the first circular plate of the casing, and the cross bar of the T-shaped connecting rod passes through the first opening and is installed on the first circular plate of the casing, and the cross bar of the T-shaped connecting rod is fixed by a limiting member, and the vertical rod of the T-shaped connecting rod is connected to the longitudinal bar of the steel cage. The limiting of the limiting member is cancelled, and the hanging bar is rotated. The hanging bar rotates the casing through the connecting rod, so that the cross bar of the T-shaped connecting rod passes through the first opening, thereby separating the T-shaped connecting rod from the casing, further completing the separation of the steel cage and the hanging bar, so as to complete the recovery of the hanging bar and the casing, and facilitate reuse. The recovery joint device and recovery method for the steel cage hanging bar of the present invention can recycle the hanging bar and reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure of the recovery joint device of the reinforcement cage suspension bar of the present invention.

[0025] Figure 2 It is a schematic diagram of the internal structure of the sleeve of the recovery joint device of the reinforcement cage suspension bar of the present invention.

[0026] Figure 3 It is a schematic diagram of the bottom structure of the recovery joint device of the reinforcement cage suspension bar of the present invention.

[0027] Figure 4 It is a schematic diagram of the use of the recovery joint device of the reinforcement cage suspension bar of the present invention.

[0028] The corresponding relationship between the reference numerals and the components is as follows:

[0029] 1-T-type connecting rod; 11-cross rod; 12-vertical rod; 2-sleeve; 21-first circular plate; 211-first opening; 212-first limiting plate; 22-second circular plate; 23-third circular plate; 231-second opening; 232-second limiting plate; 3-connecting rod; 4-reinforcement cage. DETAILED DESCRIPTION

[0030] To facilitate understanding of the present invention, the following description is provided in conjunction with the accompanying drawings and embodiments.

[0031] See also Figures 1 to 4The present invention provides a recovery joint device for a steel cage suspension bar, comprising a T-shaped connecting rod 1, a sleeve 2, and a connecting rod 3. Among them:

[0032] The vertical rod 12 of the T-shaped connecting rod 1 is used to connect with the steel cage 4 .

[0033] like Figure 2 As shown, the two ends of the sleeve 2 are connected to a first circular plate 21 and a second circular plate 22 respectively. The first circular plate 21 is provided with a first opening 211 for the cross bar 11 of the T-shaped connecting rod 1 to pass through. A limit piece is provided in the sleeve 2 to limit the rotation of the cross bar 11.

[0034] One end of the connecting rod 3 is connected to the second circular plate 22, and the other end of the connecting rod 3 is used to be connected to the suspension rod.

[0035] Specifically, the second circular plate 22 of the casing 2 is connected with a connecting rod 3, and the other end of the connecting rod 3 is connected to the suspension rod. The first circular plate 21 of the casing 2 is connected with a T-shaped connecting rod 1, and the cross bar 11 of the T-shaped connecting rod 1 is inserted into the casing 2 through the first opening 211, and the T-shaped connecting rod 1 is rotated at a certain angle so that the cross bar 11 is clamped on the first circular plate 21, and the cross bar 11 is fixed by a limiter; the vertical rod 12 of the T-shaped connecting rod 1 is connected to the longitudinal bars of the steel cage 4, so that the steel cage 4 and the suspension rod are connected through the joint device.

[0036] The limiting effect of the limiting piece on the cross bar 11 is released, and the hanging rod is rotated. The hanging rod rotates the sleeve 2 through the connecting rod, so that the cross bar 11 passes through the first opening 211, and the T-shaped connecting rod 1 can be separated from the sleeve, and the steel cage 4 is also separated from the hanging rod, so that the hanging rod and the sleeve 2 can be recovered.

[0037] As a preferred embodiment, the limiting member includes a third circular plate 23 arranged in the middle of the sleeve 2, and the third circular plate 23 is provided with a second opening 231 for the cross bar 11 of the T-shaped connecting rod 1 to pass through. The second opening 231 is arranged at a certain angle to the first opening 211.

[0038] Specifically, the cross bar 11 of the T-shaped connecting rod 1 passes through the first opening 211 between the first circular plate 21 and the third circular plate 23, and then the T-shaped connecting rod 1 is rotated at a certain angle, so that the cross bar 11 passes through the second opening 231 and passes between the third circular plate 23 and the second circular plate 22, and the T-shaped connecting rod 1 is rotated at a certain angle, so that the cross bar 11 is clamped on the third circular plate 23, thereby realizing the limiting effect on the cross bar 11. When it is necessary to release the limiting effect on the T-shaped connecting rod 1, it is necessary to rotate the sleeve 2 at a certain angle to make the cross bar 11 pass through the second opening 231, and then rotate the sleeve 2 at a certain angle to make the cross bar 11 pass through the first opening 211, so that the T-shaped connecting rod 1 passes through the sleeve 2. The setting of the third circular plate 23 can play a role in limiting and fixing the T-shaped connecting rod 1, and prevent the steel cage 4 from detaching from the sleeve 2 during use.

[0039] In this embodiment, the second opening 231 is disposed at an angle of 90 degrees to the first opening 211 . After the crossbar 11 passes through the first opening 211 , it rotates 90 degrees and then passes through the second opening 231 .

[0040] As a preferred embodiment, the limiting member also includes a first limiting plate 212 arranged on both sides of the first opening 211, and the two first limiting plates 212 are respectively arranged at both ends of the first opening 211, and a space is formed between the two first limiting plates 212 for limiting the rotation of the cross bar 11 of the T-shaped connecting rod 1.

[0041] The limiting member also includes second limiting plates 232 disposed on both sides of the second opening 231 . The two second limiting plates 232 are respectively disposed at both ends of the second opening 231 , and a space is formed between the two second limiting plates 232 for limiting the rotation of the cross bar 11 of the T-shaped connecting rod 1 .

[0042] like Figure 1 As shown, in this embodiment, the cross bar 11 of the T-shaped connecting rod 1 passes through the first opening 211, and the two first limiting plates 212 limit the cross bar 11, so that the cross bar 11 can only rotate 90 degrees at most, and the second opening 231 is set at 90 degrees with the first opening 211, so the cross bar 11 passes through the first opening 211 and then rotates 90 degrees to pass through the second opening 231. The second limiting plates 232 on both sides of the second opening 231 also limit the cross bar 11, so that the cross bar 11 can only rotate 90 degrees at most, and the cross bar 11 can only rotate in the opposite direction, and the maximum rotation angle is 90 degrees.

[0043] like Figure 2As shown, the cross bar 11 of the T-shaped connecting rod 1 passes through the first opening 211, and then the cross bar 11 rotates 90 degrees clockwise, moves upward and passes through the second opening 231, and then rotates 90 degrees counterclockwise, so that the cross bar 11 of the T-shaped connecting rod 1 can be fixed. When it is necessary to separate the steel cage and the hanging bar, that is, to separate the T-shaped connecting rod 1 from the sleeve 2, it is necessary to rotate the sleeve 2 counterclockwise 90 degrees, so that the cross bar 11 of the T-shaped connecting rod 1 passes through the second opening 231, so that the cross bar 11 enters between the third circular plate 23 and the first circular plate 21, and the cross bar 11 is just stuck between the two first limiting plates 212; then the sleeve 2 is rotated 90 degrees clockwise, so that the cross bar 11 of the T-shaped connecting rod 1 passes through the first opening 211, so that the T-shaped connecting rod 1 is separated from the sleeve 2, and the separation of the hanging bar and the steel cage 4 is completed.

[0044] As a preferred implementation, the first opening 211 is sealed with a metal foil, which can prevent dirt from entering the interior of the casing 2 .

[0045] The present invention provides a recovery method of a recovery joint device using a steel cage suspension bar, comprising the following steps:

[0046] Step 1: Install the T-shaped connecting rod 1 and the sleeve 2;

[0047] The cross bar 11 of the T-shaped connecting rod 1 is inserted into the first circular plate 21 of the sleeve 2 through the first opening 211, and the cross bar 11 of the T-shaped connecting rod 1 is rotated 90 degrees clockwise, and moved upward through the second opening 231 and the third circular plate 23, and then the cross bar 11 is rotated 90 degrees counterclockwise, and the cross bar 11 is clamped between the two second limiting plates 232 of the third circular plate 23, and the first opening 211 is closed with metal foil.

[0048] Step 2: Connect the joint with the steel cage and suspension bars;

[0049] like Figure 4 As shown, take two installed sleeves 2, symmetrically weld the vertical rods 12 of the T-shaped connecting rod 1 to the longitudinal bars of the steel cage 4, and weld one end of the connecting rod 3 to the suspension bar.

[0050] Step 3: Lower the steel cage;

[0051] When lowering, the crossbar 11 of the T-shaped connecting rod 1 contacts the third circular plate 23 to bear force, so that the hanging rod can bear the gravity of the steel cage 4 through the joint.

[0052] Step 4: Use concrete to pour the steel cage 4;

[0053] When pouring concrete, the steel cage 4 uses the supporting force of the suspension rod to resist the buoyancy, and at this time, the T-shaped connecting rod 1 contacts the second circular plate 22 to bear the force.

[0054] Step 5: Recover the suspension rod and casing 2.

[0055] After the concrete pouring is completed, the hanger is first rotated counterclockwise by 90 degrees, and the hanger rotates the sleeve 2 counterclockwise by 90 degrees through the connecting rod 3, so that the cross bar 11 of the T-shaped connecting rod 1 passes through the second opening 231, and the cross bar 11 enters between the third circular plate 23 and the first circular plate 21. At this time, the cross bar 11 is just stuck between the two first limit plates 212 of the first circular plate 21; then the hanger is rotated clockwise by 90 degrees, and the hanger rotates the sleeve 2 clockwise by 90 degrees through the connecting rod 3, so that the cross bar 11 of the T-shaped connecting rod 1 passes through the first opening 211, so that the T-shaped connecting rod 1 is separated from the sleeve 2, the separation of the hanger and the steel cage 4 is completed, and the recovery of the hanger and the sleeve is realized.

[0056] The recovery joint device and recovery method of the steel cage hanging rod of the present invention can connect the hanging rod to the steel cage, so that the hanging rod can withstand the forces in two directions of gravity and buoyancy of the steel cage, and the hanging rod and the casing can be recovered, saving construction costs and facilitating turnover use.

[0057] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A recovery joint device for steel cage suspension bars, characterized in that: include: A T-shaped connecting rod, the vertical rod of which is used to connect with the steel cage; A sleeve, wherein two ends of the sleeve are respectively connected to a first circular plate and a second circular plate, the first circular plate is provided with a first opening for the cross bar of the T-shaped connecting rod to pass through, and a limiter for limiting the rotation of the cross bar is provided in the sleeve; A connecting rod, one end of which is connected to the second circular plate, and the other end of which is used to be connected to a suspension rod; The stopper comprises a third circular plate arranged in the middle of the sleeve, the third circular plate is provided with a second opening for the cross bar of the T-shaped connecting rod to pass through, and the second opening is arranged at a certain angle to the first opening; The limiting member further comprises a first limiting plate arranged at both sides of the first opening and a second limiting plate arranged at both sides of the second opening, the two first limiting plates are respectively arranged at both ends of the first opening, and a space for limiting rotation of the cross bar of the T-shaped connecting rod is formed between the two first limiting plates, and the two second limiting plates are respectively arranged at both ends of the second opening, and a space for limiting rotation of the cross bar of the T-shaped connecting rod is formed between the two second limiting plates; The first opening is sealed with a metal foil.

2. A method for recovering steel cage hanging bars, using the recovery joint device for steel cage hanging bars according to claim 1, characterized in that: The steps include: Provide a recovery joint device for the reinforcement cage suspension bar, insert the cross bar of the T-shaped connecting rod into the first circular plate of the sleeve through the first opening, rotate the T-shaped connecting rod so that the cross bar is set at a certain angle to the first opening, and use the limiting member to limit and fix the cross bar; The vertical rods of the T-shaped connecting rods are symmetrically connected to the longitudinal bars of the steel cage, and one end of the connecting rods is connected to the suspension bars; Lower the steel cage; Use concrete to cast the reinforcement cage; After the concrete pouring is completed, the limiting effect of the limiter is removed, and the hanger bar is rotated so that the cross bar of the T-shaped connecting rod passes through the first opening to complete the separation of the hanger bar and the steel cage.

3. The method for recovering steel cage suspension bars according to claim 2, characterized in that: After the cross bar of the T-shaped connecting rod is inserted into the first circular plate of the sleeve through the first opening, the T-shaped connecting rod is rotated to allow the cross bar to pass through the second opening and into the third circular plate.

4. The method for recovering steel cage suspension bars according to claim 2, characterized in that: After the crossbar of the T-shaped connecting rod is inserted into the first circular plate of the sleeve through the first opening, a metal foil is sealed on the first opening.

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