Connecting and adjusting device for steel structure joints

Abstract

The invention relates to the technical field of steel structure connection, and provides a steel structure joint connection adjusting device which comprises a mounting support and further comprises a rectangular frame, a connecting support and a support stabilizing structure, the rectangular frame is fixedly connected to the mounting support and provided with four end faces, two of the end faces are provided with through grooves, and the connecting support is fixedly connected to the mounting support. Two through grooves are formed in the two end faces of the rectangular frame, meshing grooves are formed in the other two end faces and used for being directly connected with the profile steel, the number of the connecting supports is two, the two connecting supports correspond to the two through grooves correspondingly, position adjusting assemblies are arranged between the connecting supports and the through grooves, and a support stabilizing structure is arranged in the rectangular frame. And the support stabilizing structure is used for keeping the two connecting supports fixed on the rectangular frame. By means of the technical scheme, the technical problem that in the prior art, when steel structure joints are connected, the positions of profile steel and stand columns do not correspond, and consequently the connecting strength of the steel structure joints is poor is solved.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of steel structure connection, and in particular, to a connection adjustment device for a steel structure node. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of buildings. Steel structure is generally composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates. The connection between two or more steel beams is called a steel structure node. When connecting multiple steel beams, it is necessary to ensure the connection stability between the multiple steel beams. During the construction of steel beams, because the steel structure needs to be constructed with different requirements, the intervals between the multiple columns and steel beams of the steel structure are also changed according to the construction drawings. In order to make the steel section adapt to the intervals between different columns, the size of the steel section will also be truncated and adjusted. After the steel section is truncated and adjusted, there will inevitably be some slight distance deviations between the steel section and the two columns, which makes it easy for the steel section to be difficult to connect between the two columns.

[0003] In the prior art, in order to solve this technical problem, steel gaskets are mainly used to compensate for the insufficient distance between the steel sections and the columns. However, since there are many steel sections connected at the steel structure nodes, if too many steel gaskets are used as connecting parts between the steel sections and the columns, the overall strength of the steel structure nodes will be affected. In order to solve this problem, the present invention proposes a connection adjustment device for steel structure nodes, which is used to facilitate stable connection between the columns and multiple steel sections. Summary of the invention

[0004] In order to overcome the above-mentioned defects, an embodiment of the present invention provides a connection adjustment device for a steel structure node, which solves the technical problem in the prior art that when the steel structure node is connected, the position between the steel section and the column does not correspond, resulting in poor connection strength of the steel structure node.

[0005] The present invention provides a connection and adjustment device for a steel structure node, comprising a mounting bracket and further comprising: A rectangular frame, the rectangular frame is fixedly connected to the mounting bracket, the rectangular frame is provided with four end faces, two of which are provided with through grooves, and the remaining two end faces are provided with meshing grooves, the meshing grooves being used to be directly connected with the steel section; A connecting support, wherein the number of the connecting supports is set to two, the two connecting supports respectively correspond to the two through slots, and a position adjustment component is provided between the connecting support and the through slot; A support stabilizing structure is provided in the rectangular frame, and is used to keep the two connecting supports fixed on the rectangular frame.

[0006] In order to connect the rectangular frame with the steel section, further, a groove is opened in the middle of the connecting support, the steel section fits with the inner wall of the groove, and a through cavity is opened on one side of the connecting support close to the rectangular frame.

[0007] In order to connect the connecting support with the rectangular frame, the position adjustment assembly further includes a fixed plate body, a fixed nut and a fixed screw. The fixed plate body is fixedly connected in the through groove, a cavity is opened in the fixed plate body, and a plurality of the fixing nuts are fixedly connected on both sides of the fixed plate body and the through chamber. The fixing screws are threadedly connected between the corresponding three fixing nuts, and a plurality of wedge-shaped sockets are opened on the fixing screw.

[0008] In order to enable the fixing screw to stably move between the three fixing nuts, further, the distance between two adjacent fixing nuts is greater than the distance between two adjacent wedge-shaped sockets.

[0009] In order to keep the fixing screw fixed, the support stabilization structure further includes a fork-shaped rod and a wedge-shaped rod, the fork-shaped rod is arranged in the wedge-shaped hole located inside the rectangular frame, the fork-shaped rod is fitted with the inner wall of the wedge-shaped hole, and a diamond-shaped groove is provided at the bottom of the fork-shaped rod, wherein an installation and fixing component is arranged between multiple fork-shaped rods and the rectangular frame, the wedge-shaped rod is arranged in each of the diamond-shaped grooves, the wedge-shaped rod is fitted with the inner wall of the diamond-shaped groove, and a lifting and fastening component is arranged between multiple wedge-shaped rods and the mounting bracket.

[0010] In order to keep the multiple fork-shaped rods fixed and to close the interior of the rectangular frame, the installation and fixing assembly further includes a fixed top cover and an extension rod. The top of the rectangular frame is detachably connected to the fixed top cover, and the multiple fork-shaped rods are fixedly connected to the bottom wall of the fixed top cover through the extension rod.

[0011] In order to allow the wedge-shaped insertion rod to enter the diamond-shaped groove, further, the lifting and fastening assembly includes a sliding structure, a U-shaped bracket and a bent connecting rod. The sliding structure is slidably arranged on the mounting bracket, and multiple wedge-shaped insertion rods located on the same side are fixedly connected to the U-shaped bracket. The bent connecting rod is arranged between the U-shaped bracket and the sliding structure.

[0012] In order to adjust the height of the two U-shaped brackets, the sliding structure further includes a through sliding groove and a fastening screw. The through sliding groove is opened on the mounting bracket, and a sliding rod is slidably connected in the through sliding groove. The bent connecting rod is fixedly connected between the sliding rod and the U-shaped bracket. The bent connecting rod and the rectangular frame are both fixedly connected with a fastening nut, and the fastening screw is threadedly connected between the two fastening nuts.

[0013] In order to fix the fixed top cover to the rectangular frame, further, a connecting piece is included, a plurality of the connecting pieces are fixedly connected in the rectangular frame, and the fixed top cover and the connecting pieces are threadedly connected by bolts.

[0014] In order to directly connect the steel section with the appropriate size to the rectangular frame, further, connecting plates are fixedly connected to both sides of the engagement groove.

[0015] The beneficial effects of the embodiments of the present invention are: In the present invention, when it is necessary to connect the column with a plurality of steel sections, the rectangular frame is fixedly connected to the top of the column through the mounting bracket, and then the spacing between the two columns is measured, and the spacing of the steel sections between the two columns is measured according to the spacing, and the spacing between the connecting support and the rectangular frame is judged, so that the steel section can be fixed between the two connecting supports or between the connecting support and the meshing groove. After the steel section and the connecting support are connected, a plurality of fixing screws are used to pass through three fixing nuts in sequence, and the connecting support and the rectangular frame are kept connected by the fixing screws, and the fixing screws have a certain length to adjust the spacing between the connecting support and the rectangular frame, so as to ensure that there is a gap between the steel section and the column. Although there is a certain distance difference, the steel section and the column can still be fixedly connected. After the steel section is fixedly connected, in order to ensure the strength of the fixing screw in the subsequent use process, the installation fixing component and the lifting and fastening component are used to adjust the positions of the fork-shaped rod and the wedge-shaped rod respectively, and the fork-shaped rod and the wedge-shaped rod are moved into the wedge-shaped socket, and the position of the fixing screw is fixed to ensure the service life of the fixing screw. In summary, when the column and multiple steel sections are fixedly connected, when there is a certain difference in the spacing between the steel section and the two columns, the stable connection operation between the steel section and the column can be ensured, thereby improving the practicability in the steel structure construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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 describing the embodiments of the present invention. Obviously, the drawings described below are only some exemplary embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on the contents of the exemplary embodiments of the present invention and these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the rectangular frame, mounting bracket, steel and column of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the structure of a partial cross-section of the present invention; Figure 4 It is a partial cross-sectional structural diagram of the cooperation of the fixing screw rod, the fork-shaped insert rod, the wedge-shaped insert rod, the installation and fixing assembly and the lifting and fastening assembly in the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at point A in the middle; Figure 6 It is a schematic diagram of a partial cross-section of the structure of the fixing screw rod, the fork-shaped insert rod and the wedge-shaped insert rod in the present invention; Figure 7 It is a schematic diagram of the structure of the cooperation between the wedge-shaped insertion rod and the lifting and fastening assembly in the present invention.

[0018] In the figure: 1. mounting bracket; 2. rectangular frame; 3. through groove; 4. meshing groove; 5. connecting support; 6. slot; 7. through chamber; 8. fixing plate; 9. fixing nut; 10. fixing screw; 11. wedge-shaped socket; 12. fork-shaped plug; 13. wedge-shaped plug; 14. fixing top cover; 15. extension rod; 16. mountain-shaped bracket; 17. bent connecting rod; 18. through slide groove; 19. sliding rod; 20. tightening screw; 21. connecting piece; 22. connecting plate. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention.

[0020] In order to simplify the drawings, only the parts related to the disclosure are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0021] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0023] In the description of this embodiment, terms such as "up", "down", "left", and "right" and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0025] like Figures 1 to 7 As shown, the present invention discloses a connection and adjustment device for a steel structure node, comprising a mounting bracket 1 and a rectangular frame 2, wherein the rectangular frame 2 is fixedly connected to the mounting bracket 1, and the rectangular frame 2 is provided with four end faces, wherein two end faces are provided with through grooves 3, and the remaining two end faces are provided with meshing grooves 4, wherein the meshing grooves 4 are used for direct connection with the steel sections, and both sides of the meshing grooves 4 are fixedly connected with connection plates 22, and when the meshing grooves 4 are needed to fix the steel sections, the steel sections are extended into the meshing grooves 4, and the connection plates 22 are fitted with the steel sections, and then the connection plates 22 are fixedly connected with the steel sections using fasteners such as bolts, thereby realizing the fixed connection operation between the steel sections and the rectangular frame 2, and when the steel sections are larger than the spacing between the two columns, the steel sections can also be extended into the rectangular frame 2 through the meshing grooves 4, so that the longer steel sections can also be fixed between the two rectangular frames 2.

[0026] The number of connecting supports 5 is set to two, and the two connecting supports 5 correspond to the two through grooves 3 respectively. A groove 6 is opened in the middle of the connecting support 5, and the steel section is fitted with the inner wall of the groove 6. A through chamber 7 is opened on the side of the connecting support 5 close to the rectangular frame 2. When using the connecting support 5 to connect with the steel section, one side of the steel section is selected to extend into the groove 6 of the connecting support 5, and bolts and other fasteners are used to connect the connecting support 5 and the steel section. The through chamber 7 is set to facilitate the subsequent extension of the fixing screw 10 into the through chamber 7 to keep the connecting support 5 and the rectangular frame 2 connected.

[0027] A position adjustment component is provided between the connecting support 5 and the through groove 3, and the position adjustment component includes a fixed plate 8, a fixed nut 9 and a fixed screw 10. The through groove 3 is fixedly connected with the fixed plate 8, and a cavity is provided in the fixed plate 8. A plurality of fixed nuts 9 are fixedly connected on both sides of the fixed plate 8 and the through chamber 7. The corresponding three fixed nuts 9 are threadedly connected with the fixed screw 10. The fixed screw 10 is provided with a plurality of wedge-shaped sockets 11. The spacing between two adjacent fixed nuts 9 is greater than the spacing between two adjacent wedge-shaped sockets 11. After the connecting support 5 is connected to one side of the steel section, the connecting support 5 is connected to the fixed plate 8. The support 5 moves to a position corresponding to the fixed plate 8, and then the fixing screw 10 is threadedly connected between the corresponding three fixing nuts 9. One side of the fixing screw 10 extends into the rectangular frame 2, so that the connection support 5 and the rectangular frame 2 are maintained connected. The length of the fixing screw 10 is used to adapt the spacing between the connection support 5 and the rectangular frame 2. The difference in spacing between two adjacent fixing nuts 9 and the spacing between two adjacent wedge-shaped sockets 11 is to ensure that when the fixing screw 10 moves between the three fixing nuts 9, the threaded section on the fixing screw 10 is threadedly connected to at least two fixing nuts 9.

[0028] A support stabilizing structure is provided in the rectangular frame 2, and the support stabilizing structure is used to keep the two connecting supports 5 fixed on the rectangular frame 2. The support stabilizing structure includes a fork-shaped plug rod 12 and a wedge-shaped plug rod 13. A fork-shaped plug rod 12 is provided in the wedge-shaped plug hole 11 inside the rectangular frame 2, and the fork-shaped plug rod 12 is fitted with the inner wall of the wedge-shaped plug hole 11. A diamond-shaped slot 6 is provided at the bottom of the fork-shaped plug rod 12, wherein a mounting and fixing component is provided between the plurality of fork-shaped plug rods 12 and the rectangular frame 2, and a wedge-shaped plug rod 13 is provided in each diamond-shaped slot 6, and the wedge-shaped plug rod 13 is fitted with the inner wall of the diamond-shaped slot 6, wherein the plurality of wedge-shaped plug rods 1 A lifting and fastening assembly is arranged between 3 and the mounting bracket 1. In order to ensure that the fixing screw 10 remains sufficiently stable during subsequent use, after the fixing screw 10 is installed, the multiple fork-shaped plug rods 12 are inserted into the wedge-shaped insertion hole 11 by installing the fixing assembly, and then the lifting and fastening assembly is used to drive the multiple wedge-shaped plug rods 13 to rise, so that the wedge-shaped plug rods 13 are moved into the diamond-shaped groove 6. As the top of the wedge-shaped plug rod 13 continues to penetrate into the diamond-shaped groove 6, the bottom of the fork-shaped plug rod 12 expands outward, so that the outer wall of the fork-shaped plug rod 12 and the wedge-shaped insertion hole 11 are kept in close contact, thereby ensuring the stability of the fixing screw 10 in use.

[0029] The installation and fixing assembly includes a fixed top cover 14 and an extension rod 15. The top of the rectangular frame 2 is detachably connected to the fixed top cover 14. Multiple fork-shaped insertion rods 12 are fixedly connected to the bottom wall of the fixed top cover 14 through the extension rod 15. It also includes a connecting piece 21. Multiple connecting pieces 21 are fixedly connected in the rectangular frame 2. The fixed top cover 14 and the connecting piece 21 are threadedly connected by bolts. The fixed top cover 14 is placed on the top of the rectangular frame 2. At this time, the fork-shaped insertion rod 12 fixedly connected to the bottom of the fixed top cover 14 by the extension rod 15 extends into the wedge-shaped socket 11. Corresponding threaded holes are opened on the fixed top cover 14 and the connecting piece 21, and the fixed top cover 14 is threadedly connected to the connecting piece 21 using bolts.

[0030] The lifting and fastening assembly includes a sliding structure, a mountain-shaped bracket 16 and a bent connecting rod 17. The sliding structure is slidably arranged on the mounting bracket 1. A plurality of wedge-shaped insertion rods 13 located on the same side are fixedly connected to the mountain-shaped bracket 16. A bent connecting rod 17 is arranged between the mountain-shaped bracket 16 and the sliding structure. The sliding structure includes a through slide 18 and a fastening screw 20. A through slide 18 is provided on the mounting bracket 1. A sliding rod 19 is slidably connected in the through slide 18. The bent connecting rod 17 is fixedly connected between the sliding rod 19 and the mountain-shaped bracket 16. The bent connecting rod 17 and the rectangular frame 2 are all through-fixedly connected with fastening nuts. A fastening screw 20 is threadedly connected between the two fastening nuts. The screw rod 20, in order to drive the multiple wedge-shaped rods 13 into the diamond-shaped slots, slides the sliding rod 19 upward in the through slide groove 18, so that the bent connecting rod 17 and the mountain-shaped bracket 16 move upward together, so that the top of the wedge-shaped rod 13 enters the diamond-shaped slot 6, driving the diamond-shaped slot 6 to expand, and multiple groups of fixing nuts 9 are arranged in a triangular shape between the fixed plate 8 and the connecting support 5. Therefore, the present invention uses the mountain-shaped bracket 16 to drive the wedge-shaped rod 13 to rise to adapt to the different positions of the fixing screw 10, and after the positions of the multiple wedge-shaped rods 13 are moved, the fastening screw 20 is installed between the corresponding two fastening nuts to limit the height of the sliding rod 19.

[0031] The working principle of the connection adjustment device of the steel structure node: First, the rectangular frame 2 and the mounting bracket 1 are installed on the top of the column, and then one side of the steel section is extended into the slot 6 of the connecting support 5, and the connecting support 5 is connected to the steel section using bolts and other fasteners, and the connecting support 5 is moved to a position corresponding to the fixed plate 8, and then the fixing screw 10 is threadedly connected between the corresponding three fixing nuts 9, and one side of the fixing screw 10 is extended into the rectangular frame 2, so that the connecting support 5 and the rectangular frame 2 are kept connected, and the length of the fixing screw 10 is adjusted to adapt to the spacing between the connecting support 5 and the rectangular frame 2; The fixed top cover 14 is placed on the top of the rectangular frame 2. At this time, the fork-shaped insertion rod 12 fixedly connected to the bottom of the fixed top cover 14 by the extension rod 15 extends into the wedge-shaped insertion hole 11. Corresponding threaded holes are opened on the fixed top cover 14 and the connecting piece 21. Bolts are used to thread the fixed top cover 14 and the connecting piece 21 together, and the sliding rod 19 is slid upward in the through slide groove 18, so that the bent connecting rod 17 and the mountain-shaped bracket 16 move upward together, so that the top of the wedge-shaped insertion rod 13 enters the diamond-shaped groove 6, driving the diamond-shaped groove 6 to expand, and multiple groups of fixing nuts 9 are arranged in a triangle between the fixed plate body 8 and the connecting support 5. Therefore, the present invention uses the mountain-shaped bracket 16 to drive the wedge-shaped insertion rod 13 to rise to adapt to the different positions of the fixing screw 10. After the positions of the multiple wedge-shaped insertion rods 13 are moved, the fastening screw 20 is installed between the corresponding two fastening nuts to limit the height of the sliding rod 19.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A connection and adjustment device for a steel structure node, comprising a mounting bracket (1), characterized in that: Also includes: A rectangular frame (2), the rectangular frame (2) being fixedly connected to the mounting bracket (1), the rectangular frame (2) being provided with four end faces, two of which are provided with through grooves (3), and the remaining two end faces are provided with engaging grooves (4), the engaging grooves (4) being used for direct connection with the steel section; A connecting support (5), wherein the number of the connecting supports (5) is set to two, the two connecting supports (5) respectively correspond to the two through grooves (3), and a position adjustment component is provided between the connecting support (5) and the through groove (3); A support stabilizing structure, wherein the rectangular frame (2) is provided with the support stabilizing structure, and the support stabilizing structure is used to keep the two connecting supports (5) fixed on the rectangular frame (2).

2. A connection and adjustment device for a steel structure node according to claim 1, characterized in that: A slot (6) is provided in the middle of the connection support (5), the steel section is in contact with the inner wall of the slot (6), and a through chamber (7) is provided on one side of the connection support (5) close to the rectangular frame (2).

3. A connection and adjustment device for a steel structure node according to claim 2, characterized in that: The position adjustment component comprises: A fixed plate body (8), the fixed plate body (8) being fixedly connected in the through groove (3), and a cavity being formed in the fixed plate body (8); Fixing nuts (9), a plurality of fixing nuts (9) being fixedly connected and penetrated on both sides of the fixing plate (8) and the through chamber (7); A fixing screw rod (10) is threadedly connected between the three corresponding fixing nuts (9), and a plurality of wedge-shaped insertion holes (11) are formed on the fixing screw rod (10).

4. A connection and adjustment device for a steel structure node according to claim 3, characterized in that: The distance between two adjacent fixing nuts (9) is greater than the distance between two adjacent wedge-shaped insertion holes (11).

5. A connection and adjustment device for a steel structure node according to claim 4, characterized in that: The support stabilizing structure comprises: a forked insertion rod (12), the forked insertion rod (12) being arranged in the wedge-shaped insertion hole (11) inside the rectangular frame (2), the forked insertion rod (12) being in contact with the inner wall of the wedge-shaped insertion hole (11), and a diamond-shaped slot (6) being provided at the bottom of the forked insertion rod (12); Wherein, a mounting and fixing assembly is provided between the plurality of fork-shaped insertion rods (12) and the rectangular frame (2); A wedge-shaped insert rod (13), wherein each of the rhombus-shaped slots (6) is provided with the wedge-shaped insert rod (13), and the wedge-shaped insert rod (13) is in contact with the inner wall of the rhombus-shaped slot (6); Wherein, a lifting and fastening assembly is provided between the plurality of wedge-shaped inserting rods (13) and the mounting bracket (1).

6. A connection and adjustment device for a steel structure node according to claim 5, characterized in that: The mounting and fixing assembly comprises: A fixed top cover (14), the top of the rectangular frame (2) being detachably connected to the fixed top cover (14); An extension rod (15), wherein the plurality of fork-shaped insertion rods (12) are fixedly connected to the bottom wall of the fixed top cover (14) via the extension rod (15).

7. A connection and adjustment device for a steel structure node according to claim 6, characterized in that: The lifting and fastening assembly comprises: A sliding structure, the sliding structure being slidably arranged on the mounting bracket (1); A U-shaped bracket (16), wherein a plurality of the wedge-shaped insertion rods (13) located on the same side are all fixedly connected to the U-shaped bracket (16); A bent connecting rod (17) is provided between the U-shaped bracket (16) and the sliding structure.

8. A connection and adjustment device for a steel structure node according to claim 7, characterized in that: The sliding structure comprises: A through slide groove (18), wherein the mounting bracket (1) is provided with the through slide groove (18), a sliding rod (19) is slidably connected in the through slide groove (18), and the bent connecting rod (17) is fixedly connected between the sliding rod (19) and the mountain-shaped bracket (16); A fastening screw (20), wherein the bent connecting rod (17) and the rectangular frame (2) are both penetrated and fixedly connected with a fastening nut, and the fastening screw (20) is threadedly connected between two of the fastening nuts.

9. A connection and adjustment device for a steel structure node according to claim 8, characterized in that: Also includes: A connecting piece (21), wherein a plurality of the connecting pieces (21) are fixedly connected inside the rectangular frame (2), and the fixed top cover (14) and the connecting pieces (21) are threadedly connected via bolts.

10. A connection and adjustment device for a steel structure node according to claim 9, characterized in that: A connecting plate body (22) is fixedly connected to both sides of the engagement groove (4).

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