A steel column with adjustable points

Abstract

The present invention relates to the technical field of steel column nodes, and specifically to an adjustable point of a steel column, comprising: a slide rail, a sliding limit plate, a roller, a second adjusting shaft, a support limit plate, an adjusting connecting rod and a movable node; the beneficial effects are: the support limit plate and the node movable plate are driven to move by the second adjusting shaft, the reinforcing ribs, the support plate and the reinforcing column all strengthen the connection strength between the adjusting connecting rod and the node movable plate, and the support limit plates on both sides are driven to move toward or away from each other by rotating the second adjusting block, so that the support limit plate fits the inner wall of the steel column or moves away from the inside of the steel column, when the support limit plate fits the inner wall of the steel column, the node movable plate is limited and fixed, and when the support limit plate is separated from the inner wall of the steel column, the node movable plate can be moved, thereby realizing the adjustable node on the surface of the steel column, without cutting the steel column to adjust the node position, reducing the construction steps and improving the construction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of steel column nodes, in particular to an adjustable point of a steel column. Background Art

[0002] Steel structure is a structure made of steel materials and is one of the main types of building structures. The structure is mainly composed of steel beams, steel columns, steel trusses and other components made of steel sections and steel plates, and adopts rust removal and rust prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The components or parts are usually connected by welds, bolts or rivets. Because of its light weight and simple construction, it is widely used in large factories, stadiums, super high-rise buildings and other fields. Fire-fighting pipes refer to pipes used in fire-fighting to connect fire-fighting equipment and instruments and to transport fire-fighting water, gas or other media.

[0003] The existing steel columns have beam nodes on their surfaces, which are used to weld and fix the steel columns and beams, and the nodes are usually fixed when the steel columns leave the factory. When beams of different heights need to be installed, the steel columns need to be re-cut to adjust the node positions, which increases the construction steps and reduces the construction efficiency. When welding the steel columns and beams, one person needs to use a welding fixture to align the beam and steel column nodes to prevent the steel columns from tilting, and then another person needs to weld and fix them, which is time-consuming and labor-intensive, and cannot ensure that the beam is perpendicular to the steel column. In addition, the existing nodes are usually suitable for one beam size and cannot be suitable for multiple beam sizes. Summary of the invention

[0004] The object of the present invention is to provide an adjustable point of a steel column to solve the problem of fixing the steel column node.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A steel column with adjustable points, comprising:

[0007] The slide rails are arranged inside the steel column, and the number of the slide rails is multiple;

[0008] The sliding limit plates are arranged outside the slide rails, and the number of the sliding limit plates corresponds to the number of the slide rails;

[0009] The roller is fixed to the inner wall of the sliding limit plate and is located inside the slide rail to roll with the slide rail;

[0010] A resisting and limiting plate is sleeved on the outer surface of the second adjusting shaft, and the number of the resisting and limiting plates corresponds to the number of the slide rails;

[0011] The second adjusting shaft has two ends rotatably connected to the sliding limit plate and is used to adjust the distance between the limit plate and the steel column;

[0012] Adjusting connecting rod, one end of which is connected to the abutting limit plate;

[0013] Moving node, connected to the other end of the adjusting connecting rod and arranged outside the steel column, used for horizontally limiting the cross beam outside the steel column.

[0014] Preferably, the adjusting connecting rod has an "L" - shaped structure and is internally connected with a reinforcing column. On the side of the abutting limit plate away from the steel column, there are reinforcing ribs, and a protective groove is formed on the surface of the reinforcing ribs close to the steel column.

[0015] Preferably, a second adjusting block is centered and sleeved outside the second adjusting rotating shaft. A group of second adjusting rotating shafts cooperate with two abutting limit plates. The two abutting limit plates are located on both sides of the second adjusting block, and each group of abutting limit plates is located between the second adjusting block and the sliding limit plate. On one side surface of the second adjusting block, the second adjusting rotating shaft is provided with a left - hand thread, and the abutting limit plate here matches the left - hand thread of the second adjusting rotating shaft. On the other side surface of the second adjusting block, the second adjusting rotating shaft is provided with a right - hand thread, and the abutting limit plate here matches the right - hand thread of the second adjusting rotating shaft.

[0016] Preferably, a support plate is arranged on the surface of the abutting limit plate. The end of the adjusting connecting rod away from the moving node passes through the abutting limit plate and is connected to the support plate. A plurality of balls are arranged on the inner wall of the sliding limit plate, and the balls are arranged in a matrix.

[0017] Preferably, the moving node includes a node moving plate, an adjusting fixing plate, a first adjusting rotating shaft, a fixing block and a limiting member. The node moving plate is arranged outside the steel column and has an "L" - shaped structure. The fixing block is fixed on the surface of the node moving plate close to the steel column and has a "匚" - shaped structure and is hinged to the end of the adjusting connecting rod. The adjusting fixing plate is vertically fixed on the surface of the node moving plate away from the fixing block, and both ends of the first adjusting rotating shaft are rotatably connected to the adjusting fixing plate.

[0018] Preferably, a first adjusting block is centered and sleeved on the outer surface of the first adjusting rotating shaft, and an adjusting moving ring is sleeved outside the first adjusting rotating shaft. The adjusting moving rings are located on both sides of the first adjusting block, and each group of adjusting moving rings is located between the first adjusting rotating shaft and the first adjusting block. On one side surface of the first adjusting block, the first adjusting rotating shaft is provided with a left - hand thread, and the adjusting moving ring here matches the left - hand thread of the first adjusting rotating shaft. On the other side surface of the first adjusting block, the first adjusting rotating shaft is provided with a right - hand thread, and the adjusting moving ring here matches the right - hand thread of the first adjusting rotating shaft.

[0019] Preferably, an adjusting guiding groove is formed on the surface of the node moving plate, and an adjusting moving plate is arranged outside the node moving plate. The longitudinal section of the adjusting moving plate has an "L" - shaped structure. An adjusting guiding rod is arranged inside the adjusting guiding groove. One end of the adjusting guiding rod is connected to the adjusting moving ring, and the other end is connected to the adjusting moving plate.

[0020] Preferably, the limiting member includes a transverse limiting plate, a guide column and a cross-beam limiting bolt. The transverse limiting plate is in an "L"-shaped structure and is arranged between the adjusting movable plate and the node movable plate. The cross-beam limiting bolt is arranged through the bottom end of the adjusting movable plate. One end of the guide column is connected to the transverse limiting plate, and the other end is arranged through the bottom end of the adjusting movable plate. The cross-section of the guide column is in a "cross"-shaped structure, and multiple groups of guide columns are arranged, and one group of transverse limiting plates cooperates with multiple groups of guide columns.

[0021] Preferably, a limit swivel block is provided on the surface of the side of the transverse limit plate away from the node movable plate, the limit swivel block is rotatably connected to the transverse limit plate, and the limit swivel block is connected to the beam limit bolt, and the length of the beam limit bolt is greater than the length of the guide column.

[0022] Preferably, a limiting slider is provided on the surface of the adjusting movable plate, a limiting groove is provided on the surface of the transverse limiting plate, and the limiting slider is arranged through the limiting groove, and the cross-sections of the limiting slider and the limiting groove are both in a "T" shape, and the transverse length of the bottom end of the adjusting movable plate is smaller than the transverse length of the top end of the transverse limiting plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The invention provides two sets of node movable plates at both sides of the steel column outer surface, the node movable plate is connected with the abutting limit plate by adjusting the connecting rod, and the second adjusting block drives the second adjusting shaft and the sliding limit plate to move inside the steel column, the sliding limit plate longitudinally limits the second adjusting shaft, and the ball arranged inside the sliding limit plate reduces the friction force between the sliding limit plate and the sliding rail, which is convenient for moving the second adjusting shaft, and the abutting limit plate and the node movable plate are driven to move by the second adjusting shaft, the reinforcing ribs, the support plate and the reinforcement column all strengthen the connection strength of the adjusting connecting rod and the node movable plate, and the abutting limit plates on both sides are driven to move towards or away from each other by rotating the second adjusting block, so that the abutting limit plates are attached to the inner wall of the steel column or away from the inside of the steel column, when the abutting limit plates are attached to the inner wall of the steel column, the node movable plate is limited and fixed, and when the abutting limit plates are separated from the inner wall of the steel column, the node movable plate can be moved, thereby realizing that the node on the surface of the steel column is adjustable, and there is no need to cut the steel column to adjust the node position, thereby reducing the construction steps and improving the construction efficiency.

[0025] The two sets of adjusting rings are driven to move toward or away from each other by rotating the first adjusting block, thereby driving the adjusting movable plates to move toward or away from each other through the adjusting guide rods connected to the adjusting movable rings, thereby driving the two sets of transverse limit plates to clamp the beam transversely, and then the beam limit bolts are rotated, and the beam limit bolts cooperate with the limit rotating block to drive the transverse limit plates to move toward the node movable plates, and the limit slide grooves cooperate with the limit sliding blocks to ensure that the top of the transverse limit plates are horizontal, thereby clamping the beam longitudinally and ensuring that the beam is in vertical contact with the steel column. No multiple people are required for welding, which saves time and effort, and can adapt to beams of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of a partial three-dimensional structure viewed from above of the present invention;

[0028] Figure 3 It is a schematic diagram of a partial three-dimensional structure from a side view of the present invention;

[0029] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention in a side view;

[0030] Figure 5 It is a top view and partial cross-sectional three-dimensional structure schematic diagram of the present invention;

[0031] Figure 6 It is a schematic diagram of the main stereoscopic structure of the active node of the present invention;

[0032] Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the active node of the present invention;

[0033] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the beam limit bolt and the limit rotating block of the present invention;

[0034] Fig. 9 It is a schematic diagram of the local three-dimensional structure of the active node of the present invention.

[0035] In the figure: steel column 1, cross beam 2, slide rail 3, node movable plate 4, adjustment fixed plate 5, first adjustment shaft 6, adjustment movable ring 7, adjustment guide groove 8, adjustment movable plate 9, cross beam limit bolt 10, guide column 11, transverse limit plate 12, fixed block 13, adjustment connecting rod 14, limit rotating block 16, first adjustment block 17, adjustment guide rod 18, reinforcement column 19, support limit plate 20, second adjustment shaft 21, second adjustment block 22, reinforcement rib 23, roller 24, sliding limit plate 25, support plate 26, ball 27, limit slide groove 28, limit slider 29. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Embodiment 1:

[0038] See also Figures 1 to 9 The present invention provides a technical solution: an adjustable point of a steel column, comprising: a slide rail 3, which is arranged inside the steel column 1, and the number is multiple; a sliding limit plate 25, which is arranged on the outside of the slide rail 3, and the number of the sliding limit plates 25 corresponds to the number of the slide rails 3; a roller 24, which is fixed to the inner wall of the sliding limit plate 25, and is located inside the slide rail 3 and rolls with the slide rail 3; a resisting limit plate 20, which is sleeved on the outer surface of the second adjusting shaft 21, and the number of the resisting limit plates 20 corresponds to the number of the slide rails 3; the second adjusting shaft 21, both ends of which are rotatably connected to the sliding limit plate 25, for adjusting the distance between the resisting limit plate 20 and the steel column 1; an adjusting connecting rod 14, one end of which is connected to the resisting limit plate 20; an active node, which is connected to the other end of the adjusting connecting rod 14, and is arranged on the outside of the steel column 1, for horizontally limiting the crossbeam 2 on the outside of the steel column 1.

[0039] The adjusting link 14 is in an "L"-shaped structure and is internally connected with a reinforcing column 19 . A reinforcing rib 23 is provided on the side of the stop plate 20 away from the steel column 1 , and a protective groove is provided on the surface of the reinforcing rib 23 close to the steel column 1 .

[0040] A second adjusting block 22 is centrally sleeved on the outer side of the second adjusting shaft 21, a group of second adjusting shafts 21 cooperate with two groups of abutment and limit plates 20, and the two groups of abutment and limit plates 20 are located on both sides of the second adjusting block 22, and each group of abutment and limit plates 20 is located between the second adjusting block 22 and the sliding limit plate 25, the second adjusting shaft 21 is located on one side of the second adjusting block 22 and has a left-handed thread on the surface, and the abutment and limit plate 20 here matches the left-handed thread of the second adjusting shaft 21, the second adjusting shaft 21 is located on the other side of the second adjusting block 22 and has a right-handed thread on the surface, and the abutment and limit plate 20 here matches the right-handed thread of the second adjusting shaft 21.

[0041] By arranging two sets of movable nodes on both outer sides of the steel column 1, the movable nodes are connected to the abutting and limiting plate 20 through the adjusting connecting rod 14, and the second adjusting block 22 drives the second adjusting rotating shaft 21 and the sliding limiting plate 25 to move inside the steel column 1. The second adjusting rotating shaft 21 drives the abutting and limiting plate 20 and the movable nodes to move. The reinforcing ribs 23 and the reinforcing columns 19 both strengthen the connection strength between the adjusting connecting rod 14 and the movable nodes, and by rotating the second adjusting block 22, the two-sided abutting and limiting plates 20 are driven to move towards or away from each other, so that the abutting and limiting plate 20 fits against the inner wall of the steel column 1 or moves away from the inside of the steel column 1. When the abutting and limiting plate 20 fits against the inner wall of the steel column 1, the movable nodes are limited and fixed. When the abutting and limiting plate 20 disengages from the inner wall of the steel column 1, the movable nodes can be moved, thereby realizing the adjustability of the nodes on the surface of the steel column 1, eliminating the need to cut the steel column to adjust the node position, reducing the construction steps, and improving the construction efficiency.

[0042] Embodiment 2:

[0043] As Fig. 9 shown, the adjustable point of the steel column disclosed in Embodiment 2 of the present invention has basically the same structure as that in Embodiment 1, and the difference lies in reducing the friction between the sliding limiting plate 25 and the slide rail 3. A support plate 26 is arranged on the surface of the abutting and limiting plate 20. One end of the adjusting connecting rod 14 away from the movable node passes through the abutting and limiting plate 20 and is connected to the support plate 26. A plurality of balls 27 are arranged on the inner wall of the sliding limiting plate 25, and the balls 27 are arranged in multiple groups and are distributed in a matrix.

[0044] By reducing the contact surface between the sliding limiting plate 25 and the slide rail 3 through multiple groups of balls 27 distributed in a matrix, the friction between the sliding limiting plate 25 and the slide rail 3 is reduced, facilitating the movement of the second adjusting rotating shaft 21.

[0045] Embodiment 3:

[0046] As Figure 6-8 shown, the adjustable point of the steel column disclosed in Embodiment 3 of the present invention has basically the same structure as that in Embodiment 2, and the difference lies in adapting to crossbeams 2 of different sizes. The movable node includes a node movable plate 4, an adjusting fixing plate 5, a first adjusting rotating shaft 6, a fixing block 13 and a limiting member. The node movable plate 4 is arranged on the outer side of the steel column 1 and has an "L" - shaped structure. The fixing block 13 is fixed on the surface of the node movable plate 4 close to the steel column 1 and has a "匚" - shaped structure, and is hinged to the end of the adjusting connecting rod 14. The adjusting fixing plate 5 is vertically fixed on the surface of the node movable plate 4 away from the fixing block 13. Both ends of the first adjusting rotating shaft 6 are rotatably connected to the adjusting fixing plate 5.

[0047] A first adjusting block 17 is centrally sleeved on the outer surface of the first adjusting shaft 6, and an adjusting movable ring 7 is sleeved on the outer side of the first adjusting shaft 6. The adjusting movable rings 7 are located on both sides of the first adjusting block 17, and each group of adjusting movable rings 7 is located between the first adjusting shaft 6 and the first adjusting block 17. The first adjusting shaft 6 is located on one side of the first adjusting block 17 and a left-handed thread is provided on the surface, and the adjusting movable ring 7 here matches the left-handed thread of the first adjusting shaft 6. The first adjusting shaft 6 is located on the other side of the first adjusting block 17 and a right-handed thread is provided on the surface, and the adjusting movable ring 7 here matches the right-handed thread of the first adjusting shaft 6. An adjusting guide groove 8 is provided on the surface of the node movable plate 4, and an adjusting movable plate 9 is arranged on the outer side of the node movable plate 4. The longitudinal section of the adjusting movable plate 9 is an "L"-shaped structure. An adjusting guide rod 18 is arranged inside the adjusting guide groove 8. One end of the adjusting guide rod 18 is connected to the adjusting movable ring 7, and the other end is connected to the adjusting movable plate 9.

[0048] The limiting member includes a transverse limiting plate 12, a guide column 11 and a beam limiting bolt 10. The transverse limiting plate 12 is in an "L"-shaped structure and is arranged between the adjusting movable plate 9 and the node movable plate 4. The beam limiting bolt 10 is arranged through the bottom end of the adjusting movable plate 9. One end of the guide column 11 is connected to the transverse limiting plate 12, and the other end is arranged through the bottom end of the adjusting movable plate 9. The cross section of the guide column 11 is in a "cross"-shaped structure, and the guide column 11 is provided with multiple groups. One group of transverse limiting plates 12 cooperates with multiple groups of guide columns 11, and the transverse limiting plates 12 are away from the node movable plate A limit swivel block 16 is arranged on the surface of one side, the limit swivel block 16 is rotatably connected with the transverse limit plate 12, and the limit swivel block 16 is connected with the beam limit bolt 10, and the length of the beam limit bolt 10 is greater than the length of the guide column 11, a limit slider 29 is arranged on the surface of the adjustment movable plate 9, a limit slot 28 is arranged on the surface of the transverse limit plate 12, and the limit slider 29 passes through the limit slot 28, and the cross sections of the limit slider 29 and the limit slot 28 are both "T" shaped structures, and the horizontal length of the bottom end of the adjustment movable plate 9 is less than the horizontal length of the top end of the transverse limit plate 12.

[0049] By rotating the first adjusting block 17, the two sets of adjusting movable rings 7 are driven to move toward or away from each other, thereby driving the adjusting movable plate 9 to move toward or away from each other through the adjusting guide rod 18 connected to the adjusting movable ring 7, thereby driving the two sets of transverse limit plates 12 to clamp the crossbeam 2 laterally, and then by rotating the crossbeam limit bolt 10, the crossbeam limit bolt 10 cooperates with the limit rotating block 16 to drive the transverse limit plate 12 to move toward the node movable plate 4, and the limit slide groove 28 cooperates with the limit sliding block 29 to ensure that the top end of the transverse limit plate 12 is horizontal, thereby clamping the crossbeam 2 longitudinally and ensuring that the crossbeam 2 is in vertical contact with the steel column 1. No multiple people are required to perform welding, which saves time and effort, and can adapt to beams 2 of different sizes.

[0050] The present scheme is specifically as follows: two groups of node movable plates 4 are arranged on both sides of the outside of the steel column 1, the node movable plates 4 are connected to the abutting limit plates 20 through the adjusting connecting rods 14, and the second adjusting shaft 21 and the sliding limit plates 25 are driven to move inside the steel column 1 through the second adjusting block 22, the sliding limit plates 25 limit the second adjusting shaft 21 longitudinally, and the friction between the sliding limit plates 25 and the slide rails 3 is reduced by the balls 27 arranged inside the sliding limit plates 25, so as to facilitate the movement of the second adjusting shaft 21, the abutting limit plates 20 and the node movable plates 4 are driven to move through the second adjusting shaft 21, and the reinforcing ribs 23, The support plate 26 and the reinforcement column 19 both strengthen the connection strength between the adjusting connecting rod 14 and the node movable plate 4, and drive the abutment and limit plates 20 on both sides to move toward or away from each other by rotating the second adjusting block 22, so that the abutment and limit plates 20 are close to the inner wall of the steel column 1 or away from the inside of the steel column 1. When the abutment and limit plates 20 are close to the inner wall of the steel column 1, the node movable plate 4 is limited and fixed. When the abutment and limit plates 20 are separated from the inner wall of the steel column 1, the node movable plate 4 can be moved, thereby realizing the adjustable node on the surface of the steel column 1, without cutting the steel column to adjust the node position, reducing construction steps and improving construction efficiency.

[0051] By rotating the first adjusting block 17, the two sets of adjusting movable rings 7 are driven to move toward or away from each other, thereby driving the adjusting movable plate 9 to move toward or away from each other through the adjusting guide rod 18 connected to the adjusting movable ring 7, thereby driving the two sets of transverse limit plates 12 to clamp the beam 2 laterally, and then by rotating the beam limit bolt 10, the beam limit bolt 10 cooperates with the limit rotating block 16 to drive the transverse limit plate 12 to move toward the node movable plate 4, and the limit slide groove 28 cooperates with the limit sliding block 29 to ensure that the top of the transverse limit plate 12 is horizontal, thereby clamping the beam 2 longitudinally and ensuring that the beam 2 is in vertical contact with the steel column 1. No multiple people are required for welding, which saves time and effort, and can adapt to beams 2 of different sizes.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel column with adjustable points, characterized in that: Including: Sliding rails (3), which are arranged inside the steel column (1) and the number thereof is multiple; Sliding limit plates (25), which are arranged outside the sliding rails (3), and the number of the sliding limit plates (25) corresponds one-to-one to the number of the sliding rails (3); Rollers (24), which are fixed on the inner wall of the sliding limit plates (25) and are located inside the sliding rails (3) and rollingly cooperate with the sliding rails (3); Abuttment limit plates (20), which are sleeved on the outer surface of the second adjustment rotating shaft (21), and the number of the abuttment limit plates (20) corresponds one-to-one to the number of the sliding rails (3); Second adjustment rotating shaft (21), both ends of which are rotatably connected to the sliding limit plates (25) and are used for adjusting the distance between the abuttment limit plates (20) and the steel column (1); Adjustment connecting rod (14), one end of which is connected to the abuttment limit plate (20); Moving node, which is connected to the other end of the adjustment connecting rod (14) and is arranged outside the steel column (1) and is used for horizontally limiting the cross beam (2) outside the steel column (1); The moving node includes a node moving plate (4), an adjustment fixing plate (5), a first adjustment rotating shaft (6), a fixing block (13) and a limiting member. The node moving plate (4) is arranged outside the steel column (1) and has an "L" shaped structure. The fixing block (13) is fixed on the surface of the node moving plate (4) close to the steel column (1) and has a "匚" shaped structure and is hinged to the end of the adjustment connecting rod (14). The adjustment fixing plate (5) is vertically fixed on the surface of the node moving plate (4) far from the fixing block (13). Both ends of the first adjustment rotating shaft (6) are rotatably connected to the adjustment fixing plate (5).

2. The adjustable point of the steel column according to claim 1, characterized in that: The adjustment connecting rod (14) has an "L" shaped structure and a reinforcing column (19) is connected inside. A reinforcing rib (23) is arranged on the side of the abuttment limit plate (20) far from the steel column (1), and a protective groove is formed on the surface of the reinforcing rib (23) close to the steel column (1).

3. The adjustable point of the steel column according to claim 1, characterized in that: A second adjustment block (22) is centrally sleeved on the outer side of the second adjustment rotating shaft (21). A group of second adjustment rotating shafts (21) cooperate with two groups of abuttment limit plates (20). The two groups of abuttment limit plates (20) are located on both sides of the second adjustment block (22), and each group of abuttment limit plates (20) is located between the second adjustment block (22) and the sliding limit plate (25). A left-handed thread is formed on the surface of one side of the second adjustment rotating shaft (21) located at the second adjustment block (22), and the abuttment limit plate (20) here matches the left-handed thread of the second adjustment rotating shaft (21). A right-handed thread is formed on the surface of the other side of the second adjustment rotating shaft (21) located at the second adjustment block (22), and the abuttment limit plate (20) here matches the right-handed thread of the second adjustment rotating shaft (21).

4. The adjustable point of the steel column according to claim 1 is characterized in that: A support plate (26) is arranged on the surface of the abuttment limit plate (20). The end of the adjustment connecting rod (14) far from the moving node passes through the abuttment limit plate (20) and is connected to the support plate (26). A plurality of balls (27) are arranged on the inner wall of the sliding limit plate (25), and the balls (27) are arranged in multiple groups and are distributed in a matrix.

5. The adjustable point of the steel column according to claim 1, characterized in that: A first adjusting block (17) is sleeved in the center of the outer surface of the first adjusting shaft (6), and an adjusting movable ring (7) is sleeved on the outer side of the first adjusting shaft (6), the adjusting movable ring (7) is located on both sides of the first adjusting block (17), and each group of adjusting movable rings (7) is located between the first adjusting shaft (6) and the first adjusting block (17), a left-handed thread is opened on the surface of the first adjusting shaft (6) located on one side of the first adjusting block (17), and the adjusting movable ring (7) matches the left-handed thread of the first adjusting shaft (6), and a right-handed thread is opened on the surface of the first adjusting shaft (6) located on the other side of the first adjusting block (17), and the adjusting movable ring (7) matches the right-handed thread of the first adjusting shaft (6).

6. The adjustable point of the steel column according to claim 5, characterized in that: The surface of the node movable plate (4) is provided with an adjustment guide groove (8), and an adjustment movable plate (9) is arranged outside the node movable plate (4). The longitudinal section of the adjustment movable plate (9) is in an "L"-shaped structure. An adjustment guide rod (18) is arranged inside the adjustment guide groove (8). One end of the adjustment guide rod (18) is connected to the adjustment movable ring (7), and the other end is connected to the adjustment movable plate (9).

7. The adjustable point of the steel column according to claim 6, characterized in that: The limiting member comprises a transverse limiting plate (12), a guide column (11) and a crossbeam limiting bolt (10); the transverse limiting plate (12) is in an "L"-shaped structure and is arranged between the adjusting movable plate (9) and the node movable plate (4); the crossbeam limiting bolt (10) is arranged through the bottom end of the adjusting movable plate (9); one end of the guide column (11) is connected to the transverse limiting plate (12) and the other end is arranged through the bottom end of the adjusting movable plate (9); the cross section of the guide column (11) is in a "cross"-shaped structure; and a plurality of guide columns (11) are arranged, and a group of transverse limiting plates (12) cooperates with a plurality of groups of guide columns (11).

8. The adjustable point of the steel column according to claim 7, characterized in that: A limit rotation block (16) is provided on the surface of the side of the transverse limit plate (12) away from the node movable plate (4), the limit rotation block (16) is rotatably connected to the transverse limit plate (12), and the limit rotation block (16) is connected to the crossbeam limit bolt (10), and the length of the crossbeam limit bolt (10) is greater than the length of the guide column (11).

9. The adjustable point of the steel column according to claim 8, characterized in that: The surface of the adjusting movable plate (9) is provided with a limit slide block (29), the surface of the transverse limit plate (12) is provided with a limit slide groove (28), and the limit slide block (29) is arranged through the limit slide groove (28), and the cross-sections of the limit slide block (29) and the limit slide groove (28) are both in a "T"-shaped structure, and the transverse length of the bottom end of the adjusting movable plate (9) is smaller than the transverse length of the top end of the transverse limit plate (12).

Images