An adjustable positioning device for pre-embedded reinforcing bars in the transition layer of an assembly structure.

Abstract

This utility model provides an adjustable positioning device for pre-embedded reinforcing bars in a conversion layer of an assembled structure, relating to the technical field of building construction. It includes two horizontal square tubes symmetrically arranged, with two reinforcing bar limiting components symmetrically arranged between them. Each reinforcing bar limiting component includes a first T-shaped square steel tube and a second T-shaped square steel tube. One end of the first T-shaped square steel tube is slidably sleeved on the outside of one of the horizontal square tubes, and one end of the second T-shaped square steel tube is slidably sleeved on the outside of the other horizontal square tube. Multiple positions can be adjusted to accommodate different reinforcing bar arrangements, while preventing the reinforcing bar position from deviating. A first screw locks the square sleeve, a second screw and nut lock the first and second T-shaped square steel tubes, and a third screw locks the reinforcing bar limiting components and the horizontal square tubes, ensuring no relative sliding space between the components of the device. Even during concrete pouring and vibration or when subjected to construction loads, deviation of the pre-embedded reinforcing bars can be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of building construction, and in particular to an adjustable positioning device for pre-embedded reinforcing bars in the conversion layer of an assembled structure. Background Technology

[0002] In recent years, with the increasingly widespread application of prefabricated structures in the construction field, the quality of the connection nodes between prefabricated structures and cast-in-place structures has received more and more attention, especially the construction process of transfer layer nodes. As the connection part between the lower cast-in-place structure and the upper prefabricated concrete structure, the transfer layer has very high requirements for the accuracy of its pre-embedded reinforcing bars. During the construction of the transfer layer, reinforcing bars must first be pre-embedded in the cast-in-place layer at the bottom of the vertical prefabricated components. This requires that the installation position of the pre-embedded reinforcing bars in the transfer layer of the prefabricated building must be accurate and there should be no large displacement, otherwise the upper prefabricated components will not be able to be installed.

[0003] However, in current common practices, the pre-embedded reinforcing bars are connected to the structural steel bars by spot welding, which makes it difficult to ensure that their position does not shift during subsequent construction. Furthermore, during the concrete pouring process, they are easily affected by concrete vibration, causing the position of the reinforcing bars to deviate. Ultimately, this results in the inability to accurately align the grouting sleeve holes at the bottom of the precast component with the pre-embedded reinforcing bars. Therefore, it is necessary to provide an adjustable positioning device for the pre-embedded reinforcing bars in the conversion layer of the assembled structure to solve the above technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an adjustable positioning device for pre-embedded reinforcing bars in the conversion layer of an assembly structure.

[0005] This utility model provides an adjustable assembly structure conversion layer pre-embedded reinforcing bar positioning device, including a horizontal square tube, two of which are symmetrically arranged, and two reinforcing bar limiting components are symmetrically arranged between the two horizontal square tubes. The reinforcing bar limiting assembly includes a first T-shaped square steel tube and a second T-shaped square steel tube. One end of the first T-shaped square steel tube is slidably sleeved on the outside of one of the horizontal square tubes, and one end of the second T-shaped square steel tube is slidably sleeved on the outside of another horizontal square tube. The other end of the second T-shaped square steel tube extends into the inside of the first T-shaped square steel tube. Several square sleeves are slidably sleeved on the outside of both the first and second T-shaped square steel tubes. A limiting sleeve is fixedly connected to one side of each square sleeve, and a first screw is threaded through the other side of each square sleeve. The first T-shaped square steel tube has a long slot through it, and a locking component is provided at the long slot.

[0006] Preferably, the locking assembly includes a second screw, and a through hole is transversely opened on the second T-shaped square steel tube for the second screw to pass through. One end of the second screw passes through the long slot and the through hole and is threaded with a nut.

[0007] Preferably, one end of the first T-shaped square steel tube and the second T-shaped square steel tube is threadedly connected with a third screw.

[0008] Preferably, the horizontal square tube is perpendicular to the first T-shaped square steel tube and the second T-shaped square steel tube.

[0009] Preferably, the elongated slot is adapted to the second screw.

[0010] Preferably, the limiting sleeve is vertically arranged.

[0011] Compared with related technologies, the adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure provided by this utility model has the following beneficial effects: 1. By slidingly connecting the first T-shaped square steel tube and the second T-shaped square steel tube, and cooperating with the second screw, nut, and long slot on the first T-shaped square steel tube of the locking assembly, the second screw can be slid along the long slot by loosening the nut, causing the second T-shaped square steel tube to extend or retract relative to the first T-shaped square steel tube, thereby adjusting the distance between the two horizontal square tubes and realizing the adjustment of the device length; the first T-shaped square steel tube and the second T-shaped square steel tube of the insert limit assembly are respectively slidably fitted on the outside of the two horizontal square tubes. After moving to the required horizontal position, tightening the third screw can adjust the distance between the two insert limit assemblies and realize the adjustment of the device width. In addition, the square sleeve slidably fitted on the outside of the first T-shaped square steel tube and the second T-shaped square steel tube can drive the vertical limit sleeve fixed on one side to move. After adjusting to the target position, tightening the first screw can control the spacing of adjacent pre-embedded inserts, thereby adapting to different insert arrangement needs through multiple position adjustments, and preventing the insert position from deviating.

[0012] 2. This utility model can effectively ensure the accurate positioning of the pre-embedded reinforcing bars, avoid construction deviation, and solve the problem of easy deviation in the traditional spot welding fixing method. The pre-embedded reinforcing bars can be inserted into the vertical limiting sleeve fixed on the square sleeve. Its inner wall forms a circumferential constraint on the reinforcing bars to prevent them from tilting during construction and to ensure the verticality of the reinforcing bars. At the same time, the first screw locks the square sleeve, the second screw and nut lock the first T-shaped square steel pipe and the second T-shaped square steel pipe, and the third screw locks the reinforcing bar limiting component and the horizontal square pipe, so that there is no relative sliding space between the components of the device. Even when concrete is poured and vibrated or subjected to construction loads, the pre-embedded reinforcing bars can be prevented from deviating.

[0013] 3. After construction is completed, the first, second and third screws are removed, and then the horizontal square tube and the reinforcing bar limiting assembly are removed. Each component can be disassembled and, after simple cleaning, can be reused for other transfer layer pre-embedded reinforcing bar construction. There is no need to purchase new equipment repeatedly, thus reducing the cost of construction materials. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of the adjustable assembly structure conversion layer pre-embedded reinforcing bar positioning device provided by this utility model; Figure 2 This is another perspective view of the adjustable assembly structure conversion layer pre-embedded reinforcing bar positioning device in this utility model; Figure 3 This is an enlarged view of point A in this utility model; Figure 4 This is a schematic diagram of the square sleeve in this utility model.

[0015] The following are the labels in the diagram: 1. Horizontal square tube; 2. Insertion bar limiting component; 21. First T-shaped square steel tube; 22. Second T-shaped square steel tube; 23. Square sleeve; 24. Limiting sleeve; 25. First screw; 26. Long slot; 3. Locking component; 31. Second screw; 32. Nut; 33. Through hole; 4. Third screw. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Example 1 Please refer to the following: Figures 1 to 4 An adjustable pre-embedded reinforcing bar positioning device for a conversion layer of an assembly structure includes two horizontal square tubes 1 symmetrically arranged, and two reinforcing bar limiting components 2 symmetrically arranged between the two horizontal square tubes 1. Each reinforcing bar limiting component 2 includes a first T-shaped square steel tube 21 and a second T-shaped square steel tube 22. One end of the first T-shaped square steel tube 21 is slidably sleeved on the outside of one of the horizontal square tubes 1, and one end of the second T-shaped square steel tube 22 is slidably sleeved on the outside of the other horizontal square tube 1. The other end of the second T-shaped square steel tube 22 extends into the inside of the first T-shaped square steel tube 21. Both the outer sides of the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22 are slidably sleeved on the outside of the other horizontal square tube 1. The moving sleeve is provided with several square sleeves 23. One side of the square sleeve 23 is fixedly connected to a limit sleeve 24, and the other side of the square sleeve 23 is threadedly connected to a first screw 25. The other side of the square sleeve 23 is threadedly connected to the first screw 25 through a threaded hole. A long slot 26 is opened through the first T-shaped square steel tube 21, and a locking component 3 is provided at the long slot 26. The inner diameter of the square sleeve 23 fitted on the first T-shaped square steel tube 21 is adapted to the outer diameter of the first T-shaped square steel tube 21. The inner diameter of the square sleeve 23 fitted on the second T-shaped square steel tube 22 is adapted to the outer diameter of the second T-shaped square steel tube 22.

[0018] In the above-mentioned sliding sleeve connection between the first T-shaped square steel pipe 21 and the second T-shaped square steel pipe 22 provides a structural basis for adjusting the length of the device. This allows for flexible adjustment of the spacing between the two horizontal square pipes 1 according to the required pre-embedded reinforcing bar arrangement range during construction. The inner diameter of the square sleeve 23 matches the outer diameter of the corresponding first T-shaped square steel pipe 21 and second T-shaped square steel pipe 22, effectively preventing offset or wobbling during sliding of the square sleeve 23 and ensuring the accuracy of the position adjustment of the limiting sleeve 24. The limiting sleeve 24 then limits the position of the pre-embedded reinforcing bars. The square sleeve 23 is used to prevent the reinforcing bars from tilting during construction and to limit the spacing between adjacent reinforcing bars. After the first screw 25 is tightened through the threaded hole on the square sleeve 23, its end can abut against the outer wall of the first T-shaped square steel pipe 21 or the second T-shaped square steel pipe 22, thereby firmly fixing the square sleeve 23 and preventing the square sleeve 23 from shifting due to subsequent concrete pouring, vibration and other construction processes, thus ensuring that the position of the pre-embedded reinforcing bars is not deviated. The long slot 26 provides an adjustment stroke for the locking component 3 to ensure that the locking component 3 can move smoothly laterally.

[0019] Furthermore, one end of the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22 is threadedly connected to a third screw 4, and one end of both the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22 is threaded through and threaded to connect with the third screw 4.

[0020] In the above, the third screw 4 is adapted to the threaded holes on the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22 to lock the position of the reinforcing bar limiting component 2 and the horizontal square tube 1. After the two reinforcing bar limiting components 2 are adjusted to the position that conforms to the lateral spacing of the pre-embedded reinforcing bars by sliding the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22, the third screw 4 is tightened so that its end is tightly pressed against the outer wall of the horizontal square tube 1. This can effectively prevent the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22 from sliding relative to the horizontal square tube 1, thereby stabilizing the width dimension of the device.

[0021] Example 2 For further details, please refer to [link / reference]. Figures 1 to 4 Based on Embodiment 1, the locking assembly 3 includes a second screw 31. A through hole 33 is provided transversely on the second T-shaped square steel tube 22 for the second screw 31 to pass through. One end of the second screw 31 passes through the long slot 26 and the through hole 33 and is threaded with a nut 32.

[0022] In the above, the second screw 31 passes through the long slot 26 of the first T-shaped square steel tube 21 and the through hole 33 of the second T-shaped square steel tube 22, and is used in conjunction with the nut 32. When it is necessary to adjust the distance between the two horizontal square tubes 1, the nut 32 is loosened, and the second screw 31 can move freely along the length direction of the long slot 26, causing the second T-shaped square steel tube 22 to extend and retract relative to the first T-shaped square steel tube 21 until the required length is reached. After the adjustment is completed, the nut 32 is tightened so that the head of the second screw 31 and the nut 32 are tightly pressed against each other from both sides of the first T-shaped square steel tube 21, thereby firmly locking the position of the second T-shaped square steel tube 22, realizing the flexible adjustment of the device length and adapting to the reinforcement arrangement requirements of different precast components.

[0023] Furthermore, the horizontal square tube 1 is perpendicular to the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22.

[0024] In the above, the vertical arrangement of the horizontal square tube 1 with the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22 makes the whole device form a regular rectangular frame structure, which facilitates the alignment and insertion of the reinforcing bars.

[0025] Furthermore, the long slot 26 is adapted to the second screw 31.

[0026] In the above, the matching size of the long slot 26 and the second screw 31 can ensure that the second screw 31 can slide smoothly along the length direction in the long slot 26 without jamming or getting stuck due to size mismatch.

[0027] The working principle of the adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure provided by this utility model is as follows: In use, firstly, according to the number of reinforcing bars required for each precast wall section, prepare the corresponding number of square sleeves 23. Then, sequentially place the square sleeves 23 of the reinforcing bar limiting component 2 onto the first T-shaped square steel pipe 21 and the second T-shaped square steel pipe 22. Loosen the nut 32, then push or pull the second T-shaped square steel pipe 22 to adjust its insertion length into the first T-shaped square steel pipe 21, thereby adjusting the distance between the two horizontal square pipes 1. Stop adjusting to the required length, then tighten the nut 32. The second screw 31 and the nut 32 work together to press against both sides of the first T-shaped square steel pipe 21, thus fixing the position of the second T-shaped square steel pipe 22 and maintaining a fixed distance between the two horizontal square pipes 1, achieving the adjustment of the device's length. By moving the two reinforcing bar limiting components 2 as a whole, the first T-shaped square steel pipe 21 and the second T-shaped square steel pipe 22 are positioned at the two... The horizontal square tube 1 slides, thereby adjusting the distance between the two reinforcing bar limiting components 2. After adjusting to the required position, stop and then tighten the third screw 4 so that the end of the third screw 4 abuts against the outer wall of the horizontal square tube 1, thereby adjusting the width of the device. According to the required reinforcing bar spacing, move the square sleeve 23 to adjust its position on the first T-shaped square steel tube 21 and the second T-shaped square steel tube 22. The movement of the square sleeve 23 drives the limiting sleeve 24 to move synchronously. After adjusting the limiting sleeve 24 to the required position, tighten the first screw 25 so that its end abuts against the outer wall of the first T-shaped square steel tube 21 or the second T-shaped square steel tube 22, thereby fixing the position of the square sleeve 23 and keeping the limiting sleeve 24 in the current position. Finally, insert the pre-embedded reinforcing bar into the limiting sleeve 24 and adjust the vertical height to meet the anchorage length requirements.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An adjustable positioning device for pre-embedded reinforcing bars in a transfer layer of an assembly structure, characterized in that, It includes a horizontal square tube (1), two horizontal square tubes (1) are symmetrically arranged, and two reinforcing bar limiting components (2) are symmetrically arranged between the two horizontal square tubes (1). The reinforcing bar limiting assembly (2) includes a first T-shaped square steel tube (21) and a second T-shaped square steel tube (22). One end of the first T-shaped square steel tube (21) is slidably sleeved on the outside of one of the horizontal square tubes (1), and one end of the second T-shaped square steel tube (22) is slidably sleeved on the outside of another horizontal square tube (1). The other end of the second T-shaped square steel tube (22) extends into the inside of the first T-shaped square steel tube (21). Several square sleeves (23) are slidably sleeved on the outside of both the first T-shaped square steel tube (21) and the second T-shaped square steel tube (22). A limiting sleeve (24) is fixedly connected to one side of the square sleeve (23), and a first screw (25) is threaded through the other side of the square sleeve (23). The first T-shaped square steel tube (21) has a long slot (26) through it, and a locking component (3) is provided at the long slot (26).

2. The adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure according to claim 1, characterized in that, The locking assembly (3) includes a second screw (31), and a through hole (33) is provided transversely on the second T-shaped square steel tube (22) for the second screw (31) to pass through. One end of the second screw (31) passes through the long slot (26) and the through hole (33) and is threaded with a nut (32).

3. The adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure according to claim 1, characterized in that, One end of the first T-shaped square steel pipe (21) and the second T-shaped square steel pipe (22) is threaded with a third screw (4).

4. The adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure according to claim 1, characterized in that, The horizontal square tube (1) is perpendicular to the first T-shaped square steel tube (21) and the second T-shaped square steel tube (22).

5. The adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure according to claim 1, characterized in that, The long slot (26) is adapted to the second screw (31).

6. The adjustable pre-embedded reinforcing bar positioning device for the conversion layer of the assembly structure according to claim 1, characterized in that, The limiting sleeve (24) is set vertically.

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