Concrete column foundation bolt pre-embedding positioning device

Abstract

The utility model relates to the technical field of foundation bolt pre-embedding positioning, in particular to a concrete column foundation bolt pre-embedding positioning device, which is characterized in that a positioning cross beam and a leveling cross rod are vertically mounted, and are connected and mounted by adopting a sliding positioning component. The positioning cross beam can freely slide to a required position on the leveling cross rod and then is locked; an inverted-T-shaped mounting groove is formed in a positioning cross beam and penetrates through the top of the positioning cross beam, a bolt positioning assembly is mounted in the mounting groove, and the bolt positioning assembly is composed of a vertically-upwards-arranged bolt column and a positioning part located at the bottom of the bolt column and integrally formed and connected with the bolt column. The bolt column and the positioning part are hollow and penetrate from the top of the bolt column to the bottom of the positioning part; and the bolt column penetrates out of the top of the mounting groove, so that the embedded bolt is conveniently mounted on the bolt positioning assembly, and the embedding and positioning difficulty of the embedded bolt is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-embedded positioning of anchor bolts, in particular to a pre-embedded positioning device for concrete column anchor bolts. Background Art

[0002] Embedded bolts are bolt structures that are pre-set during the pouring of concrete to facilitate the installation of subsequent devices, equipment or structures during the construction process, so that one end of the bolt is pre-buried in the concrete structure to form a whole with the concrete structure to ensure the stability of the subsequent installation structure. For example: when installing a tower crane, it is usually necessary to pour concrete on the tower crane foundation, and during the pouring of the tower crane foundation, a number of embedded bolts are exposed on the tower crane foundation to facilitate the placement of the tower crane steel structure on the tower crane foundation for the installation of the tower crane. Another example: when erecting a steel structure roof, it is usually necessary to pre-embed multiple bolts at the top of the concrete column to fix the steel column.

[0003] At present, when setting embedded bolts, electric welding is usually used to fix the embedded bolts on the steel cage in the concrete column and the concrete body to achieve the purpose of fixing the embedded bolts, thereby ensuring that the embedded bolts will not be displaced when the concrete is poured. However, welding can easily cause damage to the steel cage and bolts in the concrete, and cause the bolt installation position to shift during the welding process, making it impossible to adjust the bolt installation position, resulting in unsatisfactory matching of the bolts and the corresponding installation holes during the subsequent structure installation.

[0004] In view of this, a large number of studies on the installation and positioning of embedded bolts have appeared in the prior art. For example: Patent No. 202121795343.3 discloses a positioning device for embedded bolts on the top of concrete columns and an embedded bolt fixing structure. Each embedded bolt is suspended and fixed at the top of the concrete column by adopting a positioning device. The positioning device includes two positioning sleeves arranged at intervals, and a connecting cross bar is detachably connected between the two positioning sleeves. The connecting cross bar can move horizontally and position between the two positioning sleeves. Each positioning sleeve is provided with a fastener whose end passes through the positioning sleeve and can fix the positioning sleeve to the embedded bolt or the foundation steel bar. When in use, the two positioning sleeves of each positioning device are respectively sleeved on one of the foundation steel bars and the embedded bolts, and the embedded bolts are supported by the connecting cross bar.

[0005] Another example: Patent No. 201310351043.X discloses an adjustable positioning structure for a pre-embedded double-layer positioning plate, including four additional pre-embedded bolts arranged vertically at the four corners of a rectangle, additional iron plates are provided on the front and rear sides of the rectangle, two wooden squares are arranged in parallel between the two additional iron plates, the additional iron plates are provided with position adjustment holes, a full-length positioning plate of a frame structure is installed on the wooden square, a column foot positioning plate is suspended on the full-length positioning plate, and column foot pre-embedded bolts are installed on the column foot positioning plate. During the entire process of installing the double-layer positioning plate adjustable positioning structure, each step of the installation is adjustable, which is conducive to process quality control, ensures the installation accuracy of the pre-embedded bolts, and avoids rework.

[0006] It can be seen that in the prior art, in order to solve the defects of damaged steel bars and bolts on the steel cage welded in the concrete body when the embedded bolts are installed and fixed, positioning components are used for positioning control. At the same time, the adjustable structure research when the embedded bolts are offset is also considered to ensure the quality of construction and installation effect. However, the installation of embedded bolts in the prior art still has the following defects: unsatisfactory position control, poor convenience and stability during the installation of embedded bolts.

[0007] Based on this, the researchers combined practical construction experience and embedded bolt installation theory to carry out structural research on the embedded bolt installation positioning device for the construction technology of installing embedded bolts on concrete bodies, providing a new structure for the installation and positioning of embedded bolts. Utility Model Content

[0008] In order to solve the above technical problems existing in the prior art, the utility model provides a pre-embedded positioning device for concrete column anchor bolts.

[0009] This is achieved specifically through the following technical solutions:

[0010] A pre-embedded positioning device for anchor bolts of concrete columns comprises a leveling cross bar and a positioning cross beam, wherein the leveling cross bar is perpendicular to the positioning cross beam, and a sliding positioning component is provided between the leveling cross bar and the positioning cross beam; vertical downward adjustment positioning components are provided at both ends of the leveling cross bar; a "convex"-shaped installation groove is provided in the positioning cross beam along the length direction, and the top of the installation groove passes through the top of the positioning cross beam; a bolt positioning component that can be matched with the installation groove is provided in the installation groove, and a blocking component is provided at the end of the installation groove; the bolt positioning component consists of a bolt column arranged vertically upward and a positioning part integrally formed and connected at the bottom of the bolt column, the bolt column and the positioning part are both hollow inside and pass through from the top of the bolt column to the bottom of the positioning part; the bolt column passes through the top of the installation groove.

[0011] The positioning beam and the leveling crossbar are installed perpendicular to each other, and a sliding positioning assembly is used to connect and install the positioning beam and the leveling crossbar, so that the positioning beam can slide freely on the leveling crossbar to the required position and then be locked; a "convex" shaped installation groove is provided in the positioning beam, and passes through the top of the positioning beam, and a bolt positioning assembly is installed in the installation groove, and the bolt positioning assembly is composed of a bolt column arranged vertically upward and a positioning part integrally formed and connected at the bottom of the bolt column, and the bolt column and the positioning part are both hollow inside and pass through from the top of the bolt column to the bottom of the positioning part; the bolt column passes through the top of the installation groove, which makes it easy to install the embedded bolts in the bolt positioning assembly, reducing the difficulty of embedding the embedded bolts, and using the vertical downward height adjustment positioning assemblies at both ends of the leveling crossbar, it is easy to adjust the installation height and the height of the embedded bolts exposed to the concrete body.

[0012] In order to facilitate the positioning beam to slide on the adjusting cross bar and be locked in position, preferably, the sliding positioning assembly includes a first sliding ring integrally formed with the bottom of the positioning beam and a tightening piece installed on the first sliding ring, and the first sliding ring can allow the leveling cross bar to pass freely and can be tightened and fixed on the leveling cross bar by the tightening piece.

[0013] In order to be able to adjust the flatness of the leveling cross bar and achieve fixed installation with the steel cage in the concrete body, preferably, the height adjustment and positioning assembly includes a column and a height adjustment piece fixedly connected to both ends of the leveling cross bar, the column is provided with a hollow hole, and the hollow hole is provided with an internal thread; the height adjustment piece is arranged in the hollow hole, and the height adjustment piece is provided with an external thread matching the internal thread; a positioning and fixing assembly is provided at the bottom of the height adjustment piece.

[0014] More preferably, the positioning and fixing assembly includes a support platform arranged at the bottom of the height adjusting piece and a positioning sleeve arranged on the height adjusting piece; the positioning sleeve can allow the height adjusting piece to pass freely, and a first fixing piece is provided on the positioning sleeve; the first fixing piece can fix the positioning sleeve on the height adjusting piece; the positioning sleeve is horizontally provided with a fixed cross bar, and a plurality of fixing structures are provided on the fixed cross bar.

[0015] More preferably, the fixing structure includes a universal shaft and a second sliding ring and a fastening ring respectively installed at both ends of the universal shaft, and the second sliding ring and the fastening ring can rotate freely around the universal shaft; the second sliding ring is sleeved on the fixed cross bar, and the second sliding ring is provided with a second fixing piece; the second fixing piece can fix the second sliding ring on the fixed cross bar; the fastening ring is provided with a fastening piece.

[0016] In order to enable the bolt positioning assembly to slide on the positioning beam without slipping out of the mounting groove, preferably, the blocking assembly includes a baffle, a baffle platform recessed along the inner wall of the mounting groove, and a mounting buckle, the baffle platform is provided with a buckle hole, the buckle hole can be matched and fastened with the mounting buckle, the baffle plate can be matched and installed with the baffle platform, and the baffle plate can be fastened into the buckle hole by the mounting buckle and installed on the baffle platform.

[0017] In order to facilitate construction personnel to observe whether the leveling crossbar is adjusted to be horizontal, preferably, a leveling assembly is provided on the leveling crossbar. More preferably, the leveling assembly includes a leveling square and an iron ring that can slide freely on the leveling crossbar, the iron ring is provided with a connecting shaft, the right-angled vertex of the leveling square is connected to the connecting shaft, and the leveling square can swing freely along the connecting shaft. More preferably, the leveling square includes a longitudinal measuring plate and a transverse measuring plate, the longitudinal measuring plate and the transverse measuring plate are vertically connected to each other, and the connection points of the longitudinal measuring plate and the transverse measuring plate are both at the ends. More preferably, a positioning hole whose axis is parallel to the transverse measuring plate is provided on the longitudinal measuring plate, and a positioning pin is provided in the positioning hole, and the positioning pin can fix the longitudinal measuring plate on the positioning beam.

[0018] Compared with the prior art, the technical effects created by the present invention are embodied in:

[0019] The invention has a simple structure and is easy to construct and install, simplifies the installation construction process of the embedded bolts in the concrete body, avoids the bottom of the embedded bolts being suspended in the air, enhances the stability and flatness of the embedded bolts after the concrete body is poured, and contributes to the convenience and stability of subsequent structure installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Create an overall structural diagram for the present invention.

[0021] Figure 2 for Figure 1 Schematic diagram of the partial cross-section structure.

[0022] Figure 3 Another structural schematic diagram of an embodiment of the present invention is created.

[0023] Figure 4 This is a schematic diagram of the structure of the invention installed in a steel cage.

[0024] 1-leveling cross bar 2-positioning cross beam 3-first sliding ring 4-tightening piece 5-column 6-height adjustment piece 7-positioning sleeve 8-first fixing piece 9-support platform 10-fixed cross bar 11-second sliding ring 12-second fixing piece 13-fastening ring 14-fastening piece 15-universal shaft 16-bolt column 17-baffle 18-installation buckle 19-baffle 20-positioning part 21-buck hole 22-installation groove 23-connecting shaft 24-longitudinal measuring plate 25-positioning pin 26-transverse measuring plate 27-iron ring 28-steel cage. DETAILED DESCRIPTION

[0025] The technical solution of the utility model is further defined below in conjunction with the accompanying drawings and specific implementation methods, but the scope of protection required is not limited to the description.

[0026] like Figure 1 and Figure 2 and Figure 3 As shown, in some embodiments, a pre-embedded positioning device for anchor bolts of a concrete column comprises a leveling cross bar 1 and a positioning cross beam 2, wherein the leveling cross bar 1 is perpendicular to the positioning cross beam 2, and a sliding positioning component is provided between the leveling cross bar 1 and the positioning cross beam 2; vertical downward adjustment positioning components are provided at both ends of the leveling cross bar 1; a "convex"-shaped mounting groove 22 is provided in the positioning cross beam 2 along the length direction, and the top of the mounting groove 22 passes through the top of the positioning cross beam 2; a bolt positioning component that can be matched with the mounting groove 22 is provided in the mounting groove 22, and a blocking component is provided at the end of the mounting groove 22; the bolt positioning component is composed of a bolt column 16 arranged vertically upward and a positioning portion 20 integrally formed and connected at the bottom of the bolt column 16, and the bolt column 16 and the positioning portion 20 are both hollow inside and pass through from the top of the bolt column 16 to the bottom of the positioning portion 20; the bolt column 16 passes through the top of the mounting groove 22.

[0027] When using, Figure 4As shown, the embedded positioning device for the anchor bolts of the concrete column is installed in the steel cage 28, so that the positioning beam 2 is located at the top of the steel cage, and the lower surface of the positioning beam 2 is close to the upper surface of the steel cage 28, so that the leveling crossbar 1 and the height adjustment positioning component are located in the steel cage 28, and are fixed by the height adjustment positioning component and the steel cage 28. In addition, the flatness of the leveling crossbar 1 is adjusted by the height adjustment positioning component, so that the positioning beam 2 is on a relatively horizontal flat surface, thereby ensuring the horizontality of the embedded bolts installed on the positioning beam 2; at the same time, the positioning beam 2 is provided with an installation groove 22, and the structure of the installation groove 22 is used to limit the embedded bolts to avoid slipping after being installed on the positioning beam 2, thereby improving stability; specifically, when installing the embedded bolts, After the installation of the height adjustment and positioning assembly and the steel cage 28 is completed, and the flatness of the leveling cross bar 1 is adjusted by the height adjustment and positioning assembly, the embedded bolt with the nut is inserted from the bolt positioning assembly so that the nut end of the embedded bolt with the nut is located at the bottom of the bolt positioning assembly to engage with the positioning portion 20, and then the bolt positioning assembly is installed in the installation groove 22 and slid to the required installation position of the embedded bolt. At the same time, the blocking assembly is installed to complete the installation of the positioning device and the embedded bolt. After pouring concrete to cover the positioning beam 2 by at least 2 cm, a concrete column or concrete body structure with embedded bolts can be obtained, which reduces the difficulty of installing the embedded bolts, improves the flexibility and convenience of installing the embedded bolts, and helps to ensure the accuracy control of the installation.

[0028] like Figure 1 and Figure 2 and Figure 3 As shown, in some embodiments, the sliding positioning assembly includes a first sliding ring 3 integrally formed with the bottom of the positioning beam 2 and a tightening member 4 installed on the first sliding ring 3, and the first sliding ring 3 can allow the leveling crossbar 1 to freely pass through and can be tightened and fixed on the leveling crossbar 1 by the tightening member 4. When in use, the first sliding ring 3 is slid on the leveling crossbar 1 to a corresponding position, so that the positioning crossbar 2 can slide to the corresponding position, and then tightened and fixed by the tightening member 4, so that the relative position of the leveling crossbar 1 and the positioning crossbar 2 can be fixed, so that the position adjustment and fixation of the positioning crossbar 2 on the leveling crossbar 1 can be achieved, and the flexibility and convenience of controlling the installation position are improved.

[0029] like Figure 1 and Figure 2 and Figure 3 As shown, in some embodiments, the height adjustment and positioning assembly includes a column 5 and a height adjustment member 6 fixedly connected to both ends of the leveling crossbar 1, the column 5 is provided with a hollow hole, and the hollow hole is provided with an internal thread; the height adjustment member 6 is arranged in the hollow hole, and the height adjustment member 6 is provided with an external thread matching the internal thread; the bottom of the height adjustment member 6 is provided with a positioning and fixing assembly. When in use, Figure 4 As shown, the positioning and fixing components are fixedly connected to the steel cage 28, for example, wire binding is adopted to fix the bottom of the height adjusting member 6 and the steel cage 28 into a whole, thereby fixing the bottom of the height adjusting and positioning components, and the top of the height adjusting and positioning components is fixedly connected to the leveling cross bar 1 to achieve the purpose of fixing the positioning device on the steel cage 28, thereby ensuring the convenience and flexibility of installation and improving stability.

[0030] like Figure 1 and Figure 2 and Figure 3 and Figure 4 As shown, in some embodiments, the positioning and fixing assembly includes a support platform 9 arranged at the bottom of the height adjusting member 6 and a positioning sleeve 7 arranged on the height adjusting member 6; the positioning sleeve 7 can allow the height adjusting member 6 to pass freely, and the positioning sleeve 7 is provided with a first fixing member 8; the first fixing member 8 can fix the positioning sleeve 7 on the height adjusting member 6; the positioning sleeve 7 is horizontally provided with a fixing crossbar 10, and the fixing crossbar 10 is provided with a plurality of fixing structures. The fixing structure can fix the fixing crossbar 10 to the steel cage 28, and at the same time, the positioning crossbar 2 and the leveling crossbar 1 clamp the top of the steel cage 28 to each other, so that the entire positioning device is fixedly installed on the steel cage, and in combination with the subsequent concrete pouring, the embedded bolts are arranged on the concrete column, which improves the stability and accuracy of the installation of the embedded bolts, and further ensures the convenience of adjusting the installation position of the embedded bolts and the flexibility of installation.

[0031] like Figure 1 and Figure 2 and Figure 3 and Figure 4 As shown, in some embodiments, the fixing structure includes a universal shaft 15 and a second sliding ring 11 and a fastening ring 13 respectively installed at both ends of the universal shaft 15, and the second sliding ring 11 and the fastening ring 13 can rotate freely around the universal shaft 15; the second sliding ring 11 is sleeved on the fixed cross bar 10, and the second sliding ring 11 is provided with a second fixing member 12; the second fixing member 12 can fix the second sliding ring 11 on the fixed cross bar 10; the fastening ring 13 is provided with a fastening member 14. The flexibility and convenience of installing and fixing the height adjustment member in the steel cage 28 are improved, and it is convenient to fix the height adjustment member with the steel bars passing through the steel cage 28 at various angles or directions.

[0032] like Figure 1As shown, in some embodiments, the blocking assembly includes a baffle 17, a baffle 19 recessed along the inner wall of the mounting groove 22, and a mounting buckle 18. The baffle 19 is provided with a buckle hole 21, and the buckle hole 21 can be matched and buckled with the mounting buckle 18, and the baffle 17 can be matched and installed with the baffle 19, and the baffle 17 can be fastened into the buckle hole 21 by the mounting buckle 18 and installed on the baffle 19. The bolt positioning assembly is blocked to prevent it from sliding off the positioning beam, so that during the concrete pouring process, the construction personnel can adjust the installation position of the embedded bolts in time according to the installation position and size requirements of the positioning bolts.

[0033] like Figure 3 As shown, in some embodiments, a leveling assembly is provided on the leveling crossbar 1. It is convenient for construction workers to adjust the flatness of both ends of the leveling crossbar during installation, so as to avoid deviation and cause some embedded bolts to be buried deeper in the concrete column and some to be buried shallower, thereby affecting the overall force bearing performance of the embedded bolts, thereby ensuring the overall flatness of both ends of the leveling crossbar.

[0034] like Figure 3 As shown, in certain embodiments, the leveling assembly includes a leveling square and an iron ring 27 that can slide freely on the leveling cross bar 1, the iron ring 27 is provided with a connecting shaft 23, the right-angled vertex of the leveling square is connected to the connecting shaft 23, and the leveling square can swing freely along the connecting shaft 23. The use of a square allows construction workers to directly place one side of the leveling square against the positioning beam 2, so that they can visually observe whether the leveling cross bar is flat as a whole, whether the heights of the two ends of the leveling cross bar are consistent, that is, whether the leveling cross bar is tilted, etc., so that construction workers can use the height adjustment and positioning assembly to adjust the leveling cross bar to ensure the relative flatness of the installation of each embedded bolt, improve the overall force balance of the embedded bolts during use, and improve safety. Figure 3 As shown, in some more excellent embodiments, the leveling square includes a longitudinal measuring plate 24 and a transverse measuring plate 26, the longitudinal measuring plate 24 and the transverse measuring plate 26 are vertically connected to each other, and the connection points between the longitudinal measuring plate 24 and the transverse measuring plate 26 are both at the ends.

[0035] like Figure 3As shown, in some embodiments, the longitudinal measuring plate 24 is provided with a positioning hole whose axis is parallel to the transverse measuring plate 26, and a positioning pin 25 is provided in the positioning hole, and the positioning pin 25 can fix the longitudinal measuring plate 24 on the positioning beam 2. It is convenient for construction personnel to use the positioning pin 25 to fix the longitudinal measuring plate 24 on the positioning beam 2, directly observe whether the leveling crossbar 1 is in contact with the transverse measuring plate 26, and then visually determine the horizontal line of the installation of the leveling crossbar 1, and then determine whether to use the height adjustment positioning component to adjust the flatness of the entire positioning device installed in the steel cage 28, improve the accuracy of the installation of the embedded bolts, avoid the depth of some embedded bolts being buried too deep in the concrete, resulting in insufficient height of the embedded bolts exposed from the concrete column, or avoid the depth of some embedded bolts being buried too shallow in the concrete, resulting in weak grip between the embedded bolts and the concrete column, which affects the stability of subsequent structures, such as the installation of steel columns.

[0036] The invention has a simple structure, is easy to prepare, and has low cost. It can greatly improve the stability, flexibility, and convenience of installing embedded bolts in concrete columns, and reduce the difficulty and cost of construction. Other matters not covered by the invention can be achieved by conventional technical means with reference to the prior art or common knowledge known to those skilled in the art. For example: the leveling crossbar 1 can be cut from steel, and sleeves with internal threads are welded at both ends of the steel as columns; the positioning crossbeam 2 can be cut and welded by angle steel or welded by several steels; the sliding positioning assembly can be made of steel suspended on the positioning crossbeam 2 as a column, and an iron ring that can be mounted on the leveling crossbar 1 is welded at the bottom, and a tightening member 4 that can be screwed in can be made on the iron ring; the height adjustment member 6 can directly use an external threaded rod, and the positioning sleeve 7 can be directly made of an iron ring or sleeve whose inner diameter matches the external thread stem.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pre-embedded positioning device for concrete column anchor bolts, characterized in that: The invention comprises a leveling crossbar (1) and a positioning crossbeam (2), wherein the leveling crossbar (1) and the positioning crossbeam (2) are perpendicular to each other, and a sliding positioning component is provided between the leveling crossbar (1) and the positioning crossbeam (2); both ends of the leveling crossbar (1) are provided with vertical downward adjustment positioning components; a "convex"-shaped mounting groove (22) is provided in the positioning crossbeam (2) along the length direction, and the top of the mounting groove (22) passes through the top of the positioning crossbeam (2); a mounting groove (22) is provided in the mounting groove (22) that can be engaged with the positioning crossbeam (2) The mounting groove (22) is matched with a bolt positioning assembly, and a blocking assembly is provided at the end of the mounting groove (22); the bolt positioning assembly is composed of a bolt column (16) arranged vertically upward and a positioning portion (20) integrally formed and connected to the bottom of the bolt column (16); the bolt column (16) and the positioning portion (20) are both hollow inside and penetrate from the top of the bolt column (16) to the bottom of the positioning portion (20); the bolt column (16) passes through the top of the mounting groove (22).

2. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 1, characterized in that: The sliding positioning assembly comprises a first sliding ring (3) integrally formed with the bottom of the positioning beam (2) and a tightening member (4) mounted on the first sliding ring (3), and the first sliding ring (3) can allow the leveling cross bar (1) to pass freely and can be tightened and fixed on the leveling cross bar (1) by the tightening member (4).

3. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 1, characterized in that: The height adjustment and positioning assembly comprises a column (5) and a height adjustment member (6) fixedly connected to both ends of the leveling crossbar (1); the column (5) is provided with a hollow hole, and an internal thread is provided in the hollow hole; the height adjustment member (6) is arranged in the hollow hole, and an external thread matching the internal thread is provided on the height adjustment member (6); and a positioning and fixing assembly is provided at the bottom of the height adjustment member (6).

4. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 3, characterized in that: The positioning and fixing assembly comprises a support platform (9) arranged at the bottom of the height adjusting member (6) and a positioning sleeve (7) arranged on the height adjusting member (6); the positioning sleeve (7) can allow the height adjusting member (6) to pass freely, and a first fixing member (8) is arranged on the positioning sleeve (7); the first fixing member (8) can fix the positioning sleeve (7) on the height adjusting member (6); the positioning sleeve (7) is horizontally provided with a fixing cross bar (10), and a plurality of fixing structures are arranged on the fixing cross bar (10).

5. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 4, characterized in that: The fixing structure comprises a universal shaft (15) and a second sliding ring (11) and a fastening ring (13) respectively mounted on two ends of the universal shaft (15), and the second sliding ring (11) and the fastening ring (13) are capable of freely rotating around the universal shaft (15); the second sliding ring (11) is sleeved on the fixed cross bar (10), and the second sliding ring (11) is provided with a second fixing member (12); the second fixing member (12) is capable of fixing the second sliding ring (11) on the fixed cross bar (10); and the fastening ring (13) is provided with a fastening member (14).

6. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 1, characterized in that: The blocking assembly comprises a blocking plate (17), a blocking platform (19) recessed along the inner wall of the mounting groove (22), and a mounting buckle (18); a buckle hole (21) is provided on the blocking platform (19); the buckle hole (21) can be matched and buckled with the mounting buckle (18); the blocking plate (17) can be matched and mounted with the blocking platform (19); and the blocking plate (17) can be buckled into the buckle hole (21) via the mounting buckle (18) and mounted on the blocking platform (19).

7. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 1, 2 or 3, characterized in that: The leveling cross bar (1) is provided with a leveling component.

8. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 7, characterized in that: The leveling assembly comprises a leveling square and an iron ring (27) that can slide freely on the leveling crossbar (1); a connecting shaft (23) is provided on the iron ring (27); the right-angle vertex of the leveling square is connected to the connecting shaft (23), and the leveling square can swing freely along the connecting shaft (23).

9. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 8, characterized in that: The leveling square comprises a longitudinal measuring plate (24) and a transverse measuring plate (26), wherein the longitudinal measuring plate (24) and the transverse measuring plate (26) are vertically connected to each other, and the connection points between the longitudinal measuring plate (24) and the transverse measuring plate (26) are both at the ends.

10. The concrete column anchor bolt pre-embedded positioning device as claimed in claim 9, characterized in that: The longitudinal measuring plate (24) is provided with a positioning hole whose axis is parallel to the transverse measuring plate (26), and a positioning pin (25) is provided in the positioning hole. The positioning pin (25) can fix the longitudinal measuring plate (24) on the positioning beam (2).

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