Adjustable steel bar connector fixing tool and use method

Abstract

The application discloses an adjustable reinforcing steel bar adapter fixing tool and a using method. The tool comprises a square steel pipe and an adapter connecting rod. The square steel pipe is uniformly provided with a plurality of through holes penetrating through upper and lower end faces of the square steel pipe. The adapter connecting rod is inserted into the through holes. The lower part of the adapter connecting rod is provided with an external thread and is screwed with the upper part of the inner wall of the adapter. The upper part of the adapter connecting rod is fixedly connected with horizontally arranged limiting rods on both sides. The rod body of the adapter connecting rod is perpendicular to the upper and lower surfaces of the square steel pipe. The lower surface of the square steel pipe is provided with longitudinal through grooves arranged along the length direction of the square steel pipe at both ends. The square steel pipe is connected with the opposite side edges of the top of a mold of a to-be-poured component through connecting pieces penetrating through the longitudinal through grooves. The method is that the elevation and perpendicularity of the adapter are controlled through the square steel pipe and the adapter connecting rod. The adapter can ensure the perpendicularity, the elevations of the top ends of the adapter are consistent, and the installation positions are consistent with the design of drawings.

Description

Technical Field

[0001] This invention relates to the field of connector technology, specifically to an adjustable rebar connector fixing fixture and its usage method. Background Technology

[0002] Connectors are commonly used to connect reinforcing bars between different structural members. In slab structures, connectors are required to be perpendicular to the slab surface, have their upper ends flush with the slab surface, and maintain a consistent height across all connectors. To achieve these requirements, such as... Figure 1 As shown, in existing technologies, additional reinforcing bars are often used to weld the ends of the connecting steel bars together, and then the additional reinforcing bars are welded and fixed to the main reinforcing bars of the structure. This method has the following drawbacks:

[0003] 1. The additional reinforcing bars are cast into the components and cannot be reused, which increases construction costs.

[0004] 2. The installation of the rebar connector and the welding of the additional rebar require a lot of manual labor.

[0005] 3. Welding additional reinforcing bars and main reinforcing bars may damage the main reinforcing bars.

[0006] 4. After welding, the elevation of each connector is often inconsistent. During pouring, the connector may be covered by concrete or protrude above the concrete surface.

[0007] 5. The verticality of the connector does not meet the pre-embedded requirements. The skewness of the connector pre-embedded causes the connected steel bars to also be skewed, and the steel bars connected later need to be corrected a second time. Summary of the Invention

[0008] This invention discloses an adjustable rebar connector fixing fixture and its usage method, with the aim of solving the technical problems described in sections 1-5 of the background art.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] An adjustable rebar connector fixing fixture includes a square steel pipe and a connector connecting rod. The square steel pipe has several through holes evenly distributed through its upper and lower ends. A connector connecting rod is inserted into each of the through holes. The lower part of the connector connecting rod has an external thread and is screwed to the upper part of the inner wall of the connector. Horizontally positioned limiting rods are fixedly connected to both sides of the upper part of the connector connecting rod. The bottom ends of the two limiting rods are flush with and abut against the upper surface of the square steel pipe. After the connector connecting rod is inserted through the through holes, its body is perpendicular to the upper and lower surfaces of the square steel pipe. The lower surface of the square steel pipe has longitudinal through grooves at both ends, extending along its length. The square steel pipe is connected to the top of the opposite side of the mold of the component to be cast via connectors passing through the longitudinal through grooves.

[0011] Preferably, the connecting rod of the connector is composed of a steel bar or a screw structure with external threads machined at the bottom. The through hole includes a first through hole located on the top wall of the square steel tube and a second through hole located on the bottom wall. The first through hole and the second through hole are coaxial and opposite to each other and slide in fit with the rod body. The axes of the first through hole and the second through hole are perpendicular to the upper and lower ends of the square steel tube.

[0012] Preferably, the mold has a connecting plate on the opposite side edge, and the connecting plate has a strip groove parallel to the side edge of the mold.

[0013] Preferably, the connector fixing fixture further includes a connecting steel plate, on which a plurality of connecting holes are evenly distributed. The connecting holes, the first through hole, and the second through hole have the same inner diameter, and the axis of the connecting holes is perpendicular to the upper and lower surfaces of the connecting steel plate.

[0014] Preferably, the connector fixing fixture further includes a cubic connecting block for joining two square steel pipes together. The connecting block is inserted between two square steel pipes with opposite heads, and joins the two square steel pipes into a whole. The outer surface of the connecting block is in transition fit with the inner surface of the square steel pipe.

[0015] Preferably, the lower part of the rod is provided with scale lines for indicating the screwing depth of the connector.

[0016] A method for using an adjustable rebar connector fixing fixture includes:

[0017] (1) Installation of single-row connectors: According to the design dimensions and inclination angle of the drawings, connect the square steel pipe between the two strip slots on opposite sides of the mold. Several through holes are opened on the square steel pipe according to the connector setting position designed in the drawings. Insert the rod into the through hole and screw the bottom of the rod to the upper part of the connector. Screw the lower part of the connector to the upper part of the reinforcing bar. During this process, control the alignment position of the top of each connector with the lower part of the rod so that the elevation of the top of each connector is consistent.

[0018] (2) If the installation range of connector 1 is less than the preset number of columns, then according to the method of step (1), connector fixing fixtures are installed at the set positions of each column of connectors; if the installation range is greater than the preset number of columns, connector fixing fixtures are installed at the positions of the two outermost columns of connectors, and connecting steel plates are installed between the same row of through holes of the two outermost square steel pipes. Connecting steel plates are provided with connecting holes corresponding to the connector positions designed in the drawings. The connecting holes at both ends of the connecting steel plates are aligned with the first through holes on the corresponding square steel pipes. After the connecting steel plates are installed in each row of through holes, a rod is inserted into the connecting hole between the two square steel pipes on the connecting steel plate, so that the lower part of the rod is connected to the corresponding steel bar head to install the connector.

[0019] (3) Pour concrete and control the height of the concrete surface to be consistent with the height of the top of the connector.

[0020] Preferably, in step (1), a bolt is inserted into the longitudinal through groove. The bolt passes through the strip through groove and connects the square steel pipe to the connecting plate through the nut. First, pull the square steel pipe along the direction of the longitudinal through groove so that the position of the outermost through hole is consistent with the position of the designed outermost connector, thereby realizing the adjustment of the starting position of the first connector. After adjustment, tighten the nut.

[0021] Preferably, in steps (1)-(3), the elevation of the top of each connector is kept consistent through the reference scale line.

[0022] Preferably, it also includes a method for reusing the connector fixing fixture, including: connecting the square steel pipes of two connector fixing fixtures into a whole by connecting blocks, so as to adapt to the connector fixing length requirements in the casting of new components.

[0023] The beneficial effects of the adjustable rebar connector fixing fixture and its usage method of the present invention are as follows:

[0024] The connector fixing fixture of this invention can uniformly control the connectors in the component, ensuring the verticality of the connectors, the consistent top elevation of the connectors, and the consistency of the installation position with the design drawings. After the concrete component is formed, this invention can be disassembled and reused, effectively reducing construction costs, improving construction quality, and avoiding damage to the main reinforcement caused by welding and waste of construction materials caused by adding additional reinforcement. Attached Figure Description

[0025] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the embodiments are briefly described below, which constitute a part of the specification and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation on the present invention.

[0026] Figure 1 A schematic cross-sectional view of an existing fixed connector;

[0027] Figure 2 A schematic diagram of the connector fixing fixture of the present invention;

[0028] Figure 3 A bottom view of the square steel pipe of the present invention;

[0029] Figure 4 A top view of the square steel pipe of the present invention;

[0030] Figure 5 A schematic diagram of the connecting rod of the connector of the present invention;

[0031] Figure 6 A cross-sectional view of the connector fixing fixture of the present invention during operation;

[0032] Figure 7 A schematic diagram of the connector fixing fixture of the present invention connecting connectors in the same column;

[0033] Figure 8 A schematic diagram of a strip-shaped through groove formed on the top of one side of the mold of the present invention;

[0034] Figure 9 A schematic diagram of the multi-angle fixing connection during construction of the connector fixing fixture of the present invention;

[0035] Figure 10 A schematic diagram of the present invention for fixing and connecting large-area connectors by adding connecting steel plates;

[0036] Figure 11 A schematic diagram of the two connector fixing fixtures of the present invention being connected to form a single integral structure;

[0037] 1—Connector; 2—Rebar end; 3—Additional rebar; 4—Concrete pouring surface; 5—Square steel pipe; 6—Connector connecting rod; 61—External thread; 7—Limiting rod; 8—Through hole; 9—Longitudinal through groove; 10—Mold; 101—Connecting plate; 102—Strip through groove; 11—Fixing fixture for connectors installed at various angles; 12—Connecting steel plate; 121—Connecting hole; 13—Connecting block. Detailed Implementation

[0038] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] The following embodiments can be understood as explaining a local structure of the present invention individually, or as explaining a larger structure of the present invention through a combination of multiple embodiments.

[0040] Example 1

[0041] An adjustable rebar connector fixing fixture, such as Figure 1-11As shown, the device includes a square steel pipe 5 and a connector connecting rod 6. The square steel pipe 5 has several through holes evenly distributed through its upper and lower ends. The connector connecting rod 6 is inserted into the through holes. The lower part of the connector connecting rod 6 has an external thread and is screwed to the upper part of the inner wall of the connector 10. The upper two sides of the connector connecting rod 6 are respectively fixedly connected with horizontally arranged limiting rods 7. The bottom ends of the two limiting rods 7 are flush with each other and abut against the upper surface of the square steel pipe 5. After the connector connecting rod 6 is inserted through the through holes, the rod body of the connector connecting rod 6 is perpendicular to the upper and lower surfaces of the square steel pipe 5. The two ends of the lower surface of the square steel pipe 5 are respectively provided with longitudinal through grooves 9 arranged along the length of the square steel pipe. The square steel pipe 5 is connected to the top of the opposite side of the mold 10 of the component to be cast through a connector passing through the longitudinal through grooves 9.

[0042] Example 2

[0043] like Figure 6 As shown, the connecting rod 6 of the connector is composed of a steel bar or screw structure with external threads machined at the bottom. The through hole 8 includes a first through hole located on the top wall of the square steel pipe 5 and a second through hole located on the bottom wall. The first through hole and the second through hole are coaxial and opposite to each other and slide in fit with the rod body. The axes of the first through hole and the second through hole are perpendicular to the upper and lower ends of the square steel pipe 5.

[0044] Example 3

[0045] like Figure 7 As shown, the mold 10 has a connecting plate 101 on the opposite side edge, and the connecting plate 101 has a strip groove 102, which is parallel to the side edge of the mold.

[0046] Example 4

[0047] like Figure 10 As shown, the connector fixing fixture also includes a connecting steel plate 12, on which a plurality of connecting holes 121 are evenly distributed. The inner diameters of the connecting holes 121, the first through hole, and the second through hole are the same, and the axis of the connecting holes 121 is perpendicular to the upper and lower surfaces of the connecting steel plate 12.

[0048] Example 5

[0049] like Figure 11 As shown, the connector fixing fixture also includes a cubic connecting block 13 for connecting two square steel pipes together. The connecting block 13 is inserted between two square steel pipes 5 with opposite heads, and connects the two square steel pipes 5 into a whole. The outer surface of the connecting block 13 is in transition fit with the inner surface of the square steel pipe 5.

[0050] Example 6

[0051] like Figure 5 , 6 Comfortable, the lower part of the pole is provided with a scale line (not shown in the figure) to mark the screwing depth of the connector 1. When the scale value at the position where the top of the connector intersects with the pole is consistent, the height of each connector is consistent. The scale line corresponding to the top of the connector during construction can be determined according to the designed elevation of the connector.

[0052] Example 7

[0053] A method for using an adjustable rebar connector fixing fixture, such as... Figure 1-11 As shown, it includes:

[0054] (1) Installation of a single-row connector: such as Figure 9 As shown, according to the design dimensions and tilt angle in the drawings, the square steel pipe 5 is connected between the two strip-shaped through slots 102 on opposite sides of the mold 10. Several through holes 8 are opened on the square steel pipe 5 according to the design of the connector in the drawings. The rod is inserted into the through holes 8 and the bottom of the rod is screwed to the upper part of the connector 1. The lower part of the connector 1 is screwed to the upper part of the rebar head 2. During this process, the position of the top of each connector 1 aligned with the lower part of the rod is controlled so that the elevation of the top of each connector 1 is consistent (the height of the connector can be controlled by referring to the scale line).

[0055] (2) If the installation range of connector 1 is less than the preset number of columns, such as within 10 columns, then according to the method of step (1), connector fixing fixtures are installed at the set positions of each column of connector 1; if the installation range is greater than the preset number of columns, connector fixing fixtures are installed at the positions of the outermost 2 columns of connectors, and connecting steel plates 12 are installed between the same row of through holes of the outermost 2 square steel pipes. Connecting steel plates 12 are provided with connecting holes 121 corresponding to the positions of connector 1 designed in the drawings. The connecting holes at both ends of the connecting steel plates 12 are aligned with the first through holes on the corresponding square steel pipes 5. After the connecting steel plates 12 are installed in each row of through holes, a rod is inserted into the connecting hole of the connecting steel plate between the 2 square steel pipes 5, so that the lower part of the rod is connected to the corresponding steel bar head to install the connector.

[0056] (3) Pour concrete and control the height of the concrete surface to be consistent with the height of the top of the connector.

[0057] Example 8

[0058] like Figure 7-9 As shown, in step (1), a bolt is inserted into the longitudinal through groove 9. The bolt passes through the strip through groove 102 and connects the square steel pipe 5 to the connecting plate 101 through the nut. First, pull the square steel pipe 5 along the direction of the longitudinal through groove 9 so that the position of the outermost through hole is consistent with the position of the designed outermost connector 1, thereby realizing the adjustment of the starting position of the first connector 1. After adjustment, tighten the nut.

[0059] Example 9

[0060] like Figure 6 As shown, in steps (1)-(3), the elevation of the top of each connector 1 is kept consistent through the reference scale line. The figure shows a form in which the top of each connector abuts against the bottom of the square steel pipe, in which the elevation of the top of the connector is consistent.

[0061] Example 10

[0062] The invention also includes a method for reusing the connector fixing fixtures, which involves connecting the square steel pipes 5 of two connector fixing fixtures into a single unit via connecting blocks 13 to accommodate the connector fixing length requirements during the casting of new components. In other words, during reuse, the invention can adapt to molds with increased widths by splicing the connector fixing fixtures.

[0063] It should be noted that for some components with relatively high tops of the reinforcing bars, the present invention can be used by raising the limiting rod on the square steel pipe. If it is necessary to raise the entire present invention, pads can be placed at the bottom of both ends of the square steel pipe.

Claims

1. An adjustable rebar connector fixing fixture, characterized in that: The device includes a square steel pipe and a connector rod. The square steel pipe has several through holes evenly distributed through its upper and lower ends. A connector rod is inserted into each through hole. The lower part of the connector rod has an external thread and is screwed to the upper part of the inner wall of the connector. Horizontally positioned limiting rods are fixedly connected to both sides of the upper part of the connector rod, with their bottom ends flush with and abutting against the upper surface of the square steel pipe. After the connector rod is inserted through the through holes, its body is perpendicular to the upper and lower surfaces of the square steel pipe. The lower surface of the square steel pipe has longitudinal through grooves at both ends, running along its length. The square steel pipe is connected to the top of the opposite side of the mold for the component to be cast via a connector passing through the longitudinal through grooves. The connector fixing fixture also includes a connecting steel plate with several connecting holes evenly distributed on it. The connecting holes, the first through hole, and the second through hole have the same inner diameter, and the axis of the connecting holes is perpendicular to the upper and lower surfaces of the connecting steel plate.

2. The adjustable rebar connector fixing fixture as described in claim 1, characterized in that: The connecting rod of the connector is composed of a steel bar or a screw structure with external threads machined at the bottom. The through hole includes a first through hole located on the top wall of the square steel tube and a second through hole located on the bottom wall. The first through hole and the second through hole are coaxial and opposite to each other and slide in fit with the rod body. The axes of the first through hole and the second through hole are perpendicular to the upper and lower ends of the square steel tube.

3. The adjustable rebar connector fixing fixture as described in claim 2, characterized in that: The mold has a connecting plate on the opposite side edge, and the connecting plate has a strip groove, which is parallel to the side edge of the mold.

4. The adjustable rebar connector fixing fixture as described in claim 3, characterized in that: The connector fixing fixture also includes a cubic connecting block for joining two square steel pipes together. The connecting block is inserted between two square steel pipes with opposite heads and joins the two square steel pipes into a whole. The outer surface of the connecting block is in transition fit with the inner surface of the square steel pipe.

5. The adjustable rebar connector fixing fixture as described in claim 4, characterized in that: The lower part of the rod is provided with scale lines to indicate the screwing depth of the connector.

6. The method of using the adjustable rebar connector fixing fixture as described in claim 5, characterized in that, include: (1) Installation of single-row connectors: According to the design dimensions and inclination angle of the drawings, connect the square steel pipe between the two strip slots on opposite sides of the mold. Several through holes are opened on the square steel pipe according to the connector setting position designed in the drawings. Insert the rod into the through hole and screw the bottom of the rod to the upper part of the connector. Screw the lower part of the connector to the upper part of the reinforcing bar. During this process, control the alignment position of the top of each connector with the lower part of the rod so that the elevation of the top of each connector is consistent. (2) If the installation range of connector 1 is less than the preset number of columns, then according to the method of step (1), connector fixing fixtures are installed at the set positions of each column of connectors; if the installation range is greater than the preset number of columns, connector fixing fixtures are installed at the positions of the two outermost columns of connectors, and connecting steel plates are installed between the same row of through holes of the two outermost square steel pipes. Connecting holes corresponding to the connector positions designed in the drawings are opened on the connecting steel plates. The connecting holes at both ends of the connecting steel plates are aligned with the first through holes on the corresponding square steel pipes. After the connecting steel plates are installed in each row of through holes, a rod is inserted into the connecting hole between the two square steel pipes on the connecting steel plate, so that the lower part of the rod is connected to the corresponding steel bar head to install the connector. (3) Pour concrete and control the height of the concrete surface to be consistent with the height of the top of the connector.

7. The method of using the adjustable rebar connector fixing fixture as described in claim 6, characterized in that: In step (1), a bolt is inserted into the longitudinal through groove. The bolt passes through the strip through groove and connects the square steel pipe to the connecting plate through the nut. First, pull the square steel pipe along the direction of the longitudinal through groove so that the position of the outermost through hole is consistent with the position of the outermost connector designed, thereby realizing the adjustment of the starting position of the first connector. After adjustment, tighten the nut.

8. The method of using the adjustable rebar connector fixing fixture as described in claim 7, characterized in that: In steps (1)-(3), the elevation of the top of each connector is kept consistent through the reference scale line.

9. The method of using the adjustable rebar connector fixing fixture as described in claim 8, characterized in that: It also includes a method for reusing the connector fixing fixture, including connecting the square steel pipes of two connector fixing fixtures into a whole by connecting blocks to adapt to the connector fixing length requirements in the casting of new components.

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