An adaptive column connection levelling device

Abstract

The application relates to an adaptive column connection leveling device, which comprises at least two leveling parts used for adjusting the angle of an upper column body relative to a lower column body in the vertical direction, and has a connection state between the upper column body and the lower column body, wherein the upper column body is located above the lower column body and is partially inserted into the lower column body in the connection state; the leveling part comprises a support piece, an adjusting piece, at least two upper counterforce blocks and at least two lower counterforce blocks, the upper counterforce blocks are arranged on the side wall of the upper column body, the lower counterforce blocks are arranged on the side wall of the lower column body, the support piece is at least partially located between the upper counterforce blocks and the lower counterforce blocks, and the support piece is in abutment with the lower counterforce blocks, the adjusting piece is arranged on the support piece and is in abutment with the upper counterforce blocks, and the adjusting piece is configured to adjust the distance between the upper counterforce blocks and the support piece so as to adjust the angle of the upper column body. The leveling device can better solve the problem of the inclination angle leveling between two steel columns.

Description

Technical Field

[0001] This application relates to the field of prefabricated building technology, specifically to an adaptive column connection leveling device. Background Technology

[0002] In related technologies, steel column connection nodes typically consist of two parts: an upper steel column and a lower steel column. During construction, the lower steel column is installed first, followed by the upper steel column being hoisted directly above the lower steel column and lowered vertically to its top. The lower steel column usually has an end cap plate flush with the column's cross-section. After the upper steel column is lowered, it should make surface contact with the top of the lower steel column and be temporarily secured using ear plates, connecting plates, and bolts pre-welded to the column body in the factory. After the upper steel column is placed on top of the lower column, due to the inability of the crane to precisely align the upper and lower steel columns, the following misalignments often occur after hoisting and positioning: misalignment of the upper and lower column planes; misalignment of the upper and lower column plane angles; and misalignment of the upper column axis relative to the lower column axis (not on the same straight line). These misalignments require secondary engineering correction. For plane and angle misalignment correction between the upper and lower columns, the traditional method is to erect horizontal jacks at different positions between the upper and lower columns; for angle misalignment, vertical jacks are erected at different positions between the upper and lower columns. This calibration method involves complicated procedures, requires a large amount of auxiliary materials, and necessitates workers with certain engineering experience to operate and complete it. Summary of the Invention

[0003] This application provides an adaptive column connection leveling device, which can more conveniently perform leveling, thereby better solving the problem of tilt angle correction (leveling) between two steel columns.

[0004] The adaptive column connection leveling device provided in this application includes at least two leveling parts. The leveling parts are used to adjust the angle of the upper column relative to the lower column in the vertical direction. The upper column and the lower column are connected. In the connected state, the upper column is located above the lower column, and the upper column is partially inserted into the lower column. The leveling unit includes a support member, an adjusting member, at least two upper reaction blocks, and at least two lower reaction blocks. The upper reaction blocks are disposed on the side wall of the upper column, and the lower reaction blocks are disposed on the side wall of the lower column. The support member is at least partially located between the upper reaction blocks and the lower reaction blocks, and the support member abuts against the lower reaction blocks. The adjusting member is disposed on the support member and abuts against the upper reaction blocks. The adjusting member is configured to adjust the distance between the upper reaction blocks and the support member, thereby adjusting the angle of the upper column.

[0005] In addition, the adaptive column connection leveling device provided in this application may also have the following additional technical features: In one optional embodiment, the support member includes an upper support angle steel, a lower support angle steel, a left connecting angle steel, and a right connecting angle steel. The upper support angle steel and the lower support angle steel are arranged vertically at intervals and located between the upper reaction block and the lower reaction block. The adjusting member is disposed on the upper support angle steel. The left connecting angle steel and the right connecting angle steel are arranged horizontally at intervals and are respectively connected to the upper support angle steel and the lower support angle steel.

[0006] In one alternative embodiment, the adjusting component includes at least two leveling bolts and at least two fastening nuts, the fastening nuts being fixedly disposed on one side of the top of the upper support angle steel, the leveling bolts passing through the upper support angle steel and screwed onto the fastening nuts, and the ends of the leveling bolts abutting against the upper reaction block.

[0007] In one alternative embodiment, the left connecting angle steel and the right connecting angle steel are provided with a plurality of mounting holes spaced apart along the length direction, and the upper supporting angle steel and the lower supporting angle steel are provided with two waist-shaped holes spaced apart along the length direction. The upper supporting angle steel / the lower supporting angle steel is detachably connected to the left connecting angle steel and the right connecting angle steel by connecting bolts passing through the mounting holes and the waist-shaped holes, respectively.

[0008] In one alternative embodiment, when the leveling unit is being leveled, the upper supporting angle steel and the lower supporting angle steel are in close contact with one side wall of the upper column and the lower column, respectively, and the left connecting angle steel and the right connecting angle steel are in close contact with two other side walls adjacent to that side wall.

[0009] In one alternative embodiment, the adaptive column connection leveling device further includes a temporary fixing long screw and a nut, the nut being screwed onto the fixing long screw, the temporary fixing long screw passing through the upper column and the lower column, and used to temporarily fix the upper column and the lower column after they are connected.

[0010] In one alternative embodiment, the upper supporting angle steel and the lower supporting angle steel are each provided with at least two connecting plates on opposite sides. The connecting plate of the upper supporting angle steel is connected to the upper reaction block by anti-overturning bolts, and the connecting plate of the lower supporting angle steel is connected to the lower reaction block by anti-overturning bolts.

[0011] In one alternative embodiment, the support further includes an upper limit angle steel and a lower limit angle steel. The upper limit angle steel is disposed on the side of the upper reaction block opposite to the upper support angle steel, and at least two anti-overturning bolts are provided on the upper limit angle steel, which abut against the top side of the upper reaction block. The lower limit angle steel is disposed on the side of the lower reaction block opposite to the lower support angle steel, and at least two anti-overturning bolts are provided on the lower limit angle steel, which abut against the bottom side of the lower reaction block.

[0012] In one optional embodiment, the upper column includes an upper steel hoop and a positioning tenon, the positioning tenon being fixedly disposed on the inner wall of the upper steel hoop, and the positioning tenon being partially exposed outside the upper steel hoop; the lower column includes a lower steel hoop and an inner lining eaves, the inner lining eaves being fixedly disposed on the inner wall of the lower steel hoop, and a preset distance being between the inner lining eaves and the open end of the lower steel hoop; in the connected state, the positioning tenon is at least partially inserted into the lower steel hoop, and the end of the positioning tenon abuts against the inner lining eaves.

[0013] In one alternative embodiment, the positioning tenon is provided with at least two notches, and the at least two notches are arranged circumferentially spaced along the positioning tenon; the positioning tenon has opposing upper and lower sides in the height direction, the lower side is located on the side of the positioning tenon away from the upper steel hoop, the opening side of the notch extends through the lower side, and there is a predetermined distance between the top side of the notch and the upper side; the positioning tenon is provided with a guide slope on one side of the lower side.

[0014] In one alternative, the height of the positioning tenon exposed above the upper steel hoop is defined as H1, and the preset distance between the inner lining eaves and the opening end of the lower steel hoop is defined as H2. Then H1 and H2 satisfy: H1 > H2, so that a welding gap is left between the end of the upper steel hoop and the end of the lower steel hoop.

[0015] In one alternative embodiment, the upper column and / or the lower column further include a steel column or a reinforced concrete column; after being leveled by the leveling part, the upper steel hoop and the lower steel hoop are welded together by welding material filled in the welding gap, and the leveling part is removed after the welding connection.

[0016] The beneficial effects of this application are as follows: The adaptive column connection leveling device in this application replaces the complex process of temporarily setting up multiple horizontal and vertical jacks at different locations in the traditional method with a leveling part (including a support, an adjusting component, an upper reaction block, and a lower reaction block). By simply adjusting the adjusting component, the distance between the upper reaction block and the support can be controlled, thereby adjusting the angle of the upper column in the vertical direction. This ensures that the axes of the upper and lower columns do not tilt. This correction method is simpler and more efficient, reducing adjustment time and manpower, and lowering adjustment costs. Furthermore, the plug-in connection between the upper and lower columns allows for a more precise connection, reducing the need to correct planar misalignment and angular misalignment, and improving installation efficiency.

[0017] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0018] Figure 1 A schematic diagram of the adaptive column connection leveling device in the first specific embodiment; Figure 2 for Figure 1 A schematic diagram of the planar structure of the adaptive column connection leveling device; Figure 3 A schematic diagram of the adaptive column connection leveling device in a second specific embodiment; Figure 4 for Figure 3 A schematic diagram of the planar structure of the adaptive column connection leveling device; Figure 5 A schematic diagram of the adaptive column connection leveling device in the third specific embodiment; Figure 6 for Figure 5 A schematic diagram of the adaptive column connection leveling device on the other side; Figure 7 for Figure 5 A schematic diagram of the planar structure of the adaptive column connection leveling device; Figure 8 A schematic diagram of the adaptive column connection leveling device in the fourth specific embodiment; Figure 9 This is a structural schematic diagram of the upper and lower columns in one specific embodiment; Figure 10 A structural schematic diagram of a positioning tenon in one specific embodiment; Figure 11 This is a schematic diagram showing the installation status of the leveling unit when the upper and lower columns are reinforced concrete columns.

[0019] Reference numerals: Leveling part 1, Support component 11, Upper support angle steel 111, Lower support angle steel 112, Left connecting angle steel 113, Right connecting angle steel 114, Mounting hole 115, Waist-shaped hole 116, Connecting bolt 117, Upper limit angle steel 118, Lower limit angle steel 119, Adjusting component 12, Leveling bolt 121, Fastening nut 122, Upper reaction block 13, Lower reaction block 14, Temporary fixing long screw 15, Connecting plate 16, Anti-overturning bolt 17, Upper column 2, Upper steel hoop 21, Positioning tenon 22, Notch 221, Upper side 222, Lower side 223, Guide slope 224, Welding gap 23, Lower column 3, Lower steel hoop 31, Inner lining eaves 32.

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0021] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0022] It should be understood that the described embodiments are merely some embodiments of this application, and not all embodiments. All other technical solutions obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0023] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0024] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0025] It should be noted that the directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0026] like Figure 1-11As shown, this application embodiment provides an adaptive column connection leveling device, which mainly includes at least two leveling parts 1. The leveling parts 1 are used to adjust the angle of the upper column 2 relative to the lower column 3 in the vertical direction. The upper column 2 and the lower column 3 are connected. In the connected state, the upper column 2 is located above the lower column 3, and part of the upper column 2 is inserted into the lower column 3. The leveling part 1 includes a support member 11, an adjusting member 12, and at least two... An upper reaction block 13 and at least two lower reaction blocks 14 are provided. The upper reaction block 13 is disposed on the side wall of the upper column 2, and the lower reaction blocks 14 are disposed on the side wall of the lower column 3. The support member 11 is at least partially located between the upper reaction block 13 and the lower reaction blocks 14, and the support member 11 abuts against the lower reaction blocks 14. An adjusting member 12 is disposed on the support member 11 and abuts against the upper reaction block 13. The adjusting member 12 is configured to adjust the distance between the upper reaction block 13 and the support member 11, thereby adjusting the angle of the upper column 2.

[0027] It should be noted that the cross-sections of the upper column 2 and the lower column 3 can be rectangular or regular polygonal, or they can be circular columns or other column structures. The position of the leveling part 1 can be preset according to the shape of the upper column 2 and the lower column 3. Therefore, the specific shape of the upper column 2 and the lower column 3 is not specifically limited in this paper. Generally, two leveling parts 1 are sufficient. In addition, two upper reaction blocks 13 and two lower reaction blocks 14 are generally sufficient to meet the leveling requirements. Of course, a certain number can be added according to actual needs, but this will not be elaborated on in detail.

[0028] In this embodiment, the adaptive column connection leveling device replaces the complex process of temporarily setting up multiple horizontal and vertical jacks at different locations in the traditional method with the leveling part 1 (including support 11, adjustment 12, upper reaction block 13, and lower reaction block 14). By simply adjusting the adjustment 12, the distance between the upper reaction block 13 and the support 11 can be controlled, thereby adjusting the angle of the upper column 2 in the vertical direction. This ensures that the axes of the upper column 2 and the lower column 3 do not tilt. This correction method is simpler and more efficient, reducing adjustment time and manpower, and lowering adjustment costs. In addition, the plug-in connection between the upper column 2 and the lower column 3 also makes the connection between them more precise, reducing the correction work for plane misalignment and plane corner misalignment, and improving installation efficiency. In short, the adaptive column connection leveling device in this embodiment achieves rapid deployment and adjustment through modular design, significantly reducing the reliance on multiple jacks in the traditional leveling method, reducing equipment costs and manpower, while improving leveling accuracy and reliability.

[0029] like Figure 1-8As shown, in one specific embodiment, the support member 11 includes an upper support angle steel 111, a lower support angle steel 112, a left connecting angle steel 113, and a right connecting angle steel 114. The upper support angle steel 111 and the lower support angle steel 112 are arranged vertically at intervals and located between the upper reaction block 13 and the lower reaction block 14. The adjusting member 12 is disposed on the upper support angle steel 111. The left connecting angle steel 113 and the right connecting angle steel 114 are arranged horizontally at intervals and are respectively connected to the upper support angle steel 111 and the lower support angle steel 112.

[0030] The support member 11 bears the vertical leveling reaction force through the upper support angle steel 111 and the lower support angle steel 112, and forms a stable frame after being connected by the left connecting angle steel 113 and the right connecting angle steel 114. This effectively limits the possible deformation or displacement of the support member 11 itself, ensuring that the adjustment force can be effectively transmitted to the upper column 2, thereby ensuring the stability of the leveling process and the accuracy of the leveling result, and overcoming the shortcomings of traditional jack support such as instability and easy slippage.

[0031] In some other embodiments, the upper supporting angle steel 111 and the lower supporting angle steel 112 can also be replaced by channel steel or I-beams. However, the angle steel combination structure is not only inexpensive and easy to process, but also forms a stable load-bearing frame by connecting the angle steels, effectively preventing deformation during the leveling process and ensuring long-term durability and safety. Therefore, the support member 11 in this embodiment is preferably angle steel.

[0032] like Figure 1-8 As shown, in one specific embodiment, the adjusting member 12 includes at least two leveling bolts 121 and at least two fastening nuts 122. The fastening nuts 122 are fixedly disposed on the top side of the upper supporting angle steel 111. The leveling bolts 121 pass through the upper supporting angle steel 111 and are screwed to the fastening nuts 122. The ends of the leveling bolts 121 abut against the upper reaction block 13.

[0033] In this embodiment, a leveling bolt 121 and a fastening nut 122 are used as adjusting components 12. The fastening nut 122 can be fixedly welded to one side of the top of the upper supporting angle steel 111. During leveling, the self-locking characteristic of the threaded drive allows for reliable locking at any adjustment position, avoiding the pressure relief and retraction problems that may occur with hydraulic jacks. This ensures that the upper column 2 maintains a stable posture from leveling to welding, improving construction reliability. Furthermore, the bolt adjustment method offers high precision and simple operation, requiring no specialized hydraulic equipment, significantly reducing construction costs and technical barriers, making it particularly suitable for use on resource-constrained construction sites.

[0034] like Figure 1-8As shown, in one specific embodiment, the left connecting angle steel 113 and the right connecting angle steel 114 are provided with a plurality of mounting holes 115 at intervals along the length direction, and the upper supporting angle steel 111 and the lower supporting angle steel 112 are provided with two waist-shaped holes 116 at intervals along the length direction. The upper supporting angle steel 111 / lower supporting angle steel 112 is detachably connected to the left connecting angle steel 113 and the right connecting angle steel 114 by connecting bolts 117 that pass through the mounting holes 115 and the waist-shaped holes 116, respectively.

[0035] In actual engineering design, the distance between the upper column 2 and the second main body, as well as the column width, are not fixed. The height of the leveling part 1 can be changed by adjusting the position of the connecting bolt 117 in different mounting holes 115, and the width of the leveling part 1 can be changed by adjusting the position of the connecting bolt 117 in the waist-shaped hole 116. This allows the leveling part 1 to adapt to different column widths and vertical column spacing. Specifically, the design of multiple mounting holes 115 and waist-shaped holes 116 allows the overall height and width of the support 11 to be flexibly adjusted according to the column size on site and the corresponding positions of the upper reaction block 13 and lower reaction block 14. This greatly improves the versatility of the leveling part 1. One set of equipment can meet the leveling requirements of precast columns of different specifications, reducing the investment in special tooling and better conforming to the economic principle of prefabricated buildings.

[0036] like Figure 1-8 As shown, in one specific embodiment, when the leveling part 1 is leveling, the upper supporting angle steel 111 and the lower supporting angle steel 112 are closely attached to one side wall of the upper column 2 and the lower column 3, and the left connecting angle steel 113 and the right connecting angle steel 114 are respectively closely attached to the other two side walls adjacent to the side wall. This ensures that the upper supporting angle steel 111 and the lower supporting angle steel 112 have sufficient bending stiffness and bending bearing capacity during the leveling process.

[0037] like Figure 1 As shown, in one specific embodiment, the adaptive column connection leveling device further includes a temporary fixing long screw 15 and a nut. The nut is screwed onto the fixing long screw. The temporary fixing long screw 15 passes through the upper column 2 and the lower column 3, and is used to temporarily fix the upper column 2 and the lower column 3 after they are connected. The temporary fixing long screw 15 can achieve a preliminary connection between the upper column 2 and the lower column 3 before the leveling operation, resist horizontal wind loads during installation, and prevent the upper column 2 from tilting.

[0038] The adaptive column connection leveling device in this embodiment can be used according to the following steps: After the lower column 3 is installed in place, the upper column 2 is hoisted. When the upper column 2 is directly above the lower column 3, it is lowered and slowly inserted into the lower column 3. Then, the temporary fixing long screw 15 is inserted into the preset mounting screw holes on the side walls of the upper column 2 and the lower column 3, and the nut on the temporary fixing long screw 15 is tightened to prevent the upper column 2 from tipping over. Then, the hoisting ropes are removed.

[0039] Adjustment parts are inserted into the connection points (on both opposite sides of the column) of the upper column 2 and the lower column 3 respectively. Then, based on the actual distance between the end faces of the column 2 and the lower column 3, as well as the width or diameter of the upper column 2 and the lower column 3, the distance between the upper support angle steel 111 and the lower support angle steel 112, and the distance between the left connecting angle steel 113 and the right connecting angle steel 114 are adjusted so that the adjustment parts are adapted to the column. The verticality of the upper column 2 is measured with an instrument. The leveling bolts 121 on the upper support angle steel 111 are adjusted according to the verticality to adjust the distance between the upper reaction block 13 and the upper support angle steel 111, thereby adjusting the angle of the upper column 2. After adjusting to meet the engineering requirements, the upper column 2 and the lower column 3 are welded together. Finally, the adjustment part and the temporary fixing long screw 15 are removed.

[0040] like Figure 3-4 and Figure 8 As shown, in one specific embodiment, the upper supporting angle steel 111 and the lower supporting angle steel 112 are respectively provided with at least two connecting plates 16 on opposite sides. The connecting plate 16 of the upper supporting angle steel 111 is connected to the upper reaction block 13 by anti-overturning bolts 17, and the connecting plate 16 of the lower supporting angle steel 112 is connected to the lower reaction block 14 by anti-overturning bolts 17.

[0041] Specifically, in this embodiment, at least two connecting plates 16 are respectively provided on the opposite sides of the upper supporting angle steel 111 and the lower supporting angle steel 112. Elongated holes are provided on the connecting plates 16, the upper reaction block 13, and the lower reaction block 14. Anti-overturning bolts 17 connect the upper supporting angle steel 111 to the upper reaction block 13 and the lower supporting angle steel 112 to the lower reaction block 14 through the elongated holes, temporarily fixing the upper column 2 and the lower column 3, thereby overcoming the horizontal anti-overturning problem of the upper column 2 and the lower column 3 under wind load before weld welding. It should be noted that the diameter of the elongated holes in the height direction is slightly larger than that of the anti-overturning bolts 17, thus allowing for a certain amount of displacement of the upper column 2 during leveling.

[0042] like Figure 5-7As shown, in one specific embodiment, the support member 11 further includes an upper limit angle steel 118 and a lower limit angle steel 119. The upper limit angle steel 118 is disposed on the side of the upper reaction block 13 away from the upper support angle steel 111, and at least two anti-overturning bolts 17 are provided on the upper limit angle steel 118. The anti-overturning bolts 17 abut against the top side of the upper reaction block 13. The lower limit angle steel 119 is disposed on the side of the lower reaction block 14 away from the lower support angle steel 112, and at least two anti-overturning bolts 17 are provided on the lower limit angle steel 119. The anti-overturning bolts 17 abut against the bottom side of the lower reaction block 14.

[0043] In this embodiment, the leveling part 1 can be used after the upper column 2 is inserted into the lower column 3. The leveling part 1, excluding the upper support angle steel 111 and the lower support angle steel 112, is set on the opposite sides of the upper reaction block 13 and the lower reaction block 14. The anti-overturning bolts 17 of the upper limit angle steel 118 and the lower limit angle steel 119 are tightened so that the anti-overturning bolts 17 abut against the sides of the upper reaction block 13 and the lower reaction block 14 respectively, thereby overcoming the horizontal anti-overturning problem under wind load during construction. Then, the upper support angle steel 111 and the lower support angle steel 112 are installed according to the position. The tilt angle of the upper column 2 is adjusted by the leveling bolt 121. After the tilt angle meets the requirements, the upper column 2 and the lower column 3 are welded together. Finally, the leveling part is removed.

[0044] like Figure 9-10 As shown, in one specific embodiment, the upper column 2 includes an upper steel hoop 21 and a positioning tenon 22. The positioning tenon 22 is fixedly disposed on the inner wall of the upper steel hoop 21, and a portion of the positioning tenon 22 is exposed outside the upper steel hoop 21. The lower column 3 includes a lower steel hoop 31 and an inner lining eaves 32. The inner lining eaves 32 is fixedly disposed on the inner wall of the lower steel hoop 31, and there is a preset distance between the inner lining eaves 32 and the open end of the lower steel hoop 31. In the connected state, the positioning tenon 22 is at least partially inserted into the lower steel hoop 31, and the end of the positioning tenon 22 abuts against the inner lining eaves 32.

[0045] In this embodiment, the insertion and abutment design of the positioning tenon 22 and the inner lining eaves 32 achieves the initial centering and limiting of the two columns, which significantly reduces the probability of planar misalignment and corner misalignment, provides good initial conditions for subsequent leveling operations, and further shortens the overall installation time.

[0046] like Figure 9-10As shown, in one specific embodiment, the positioning tenon 22 is provided with at least two notches 221, and the at least two notches 221 are arranged at intervals along the circumference of the positioning tenon 22; the positioning tenon 22 has an upper side 222 and a lower side 223 opposite to each other in the height direction, the lower side 223 is located on the side of the positioning tenon 22 away from the upper steel hoop 21, the opening side of the notch 221 passes through the lower side 223, and there is a preset distance between the top side of the notch 221 and the upper side 222; the positioning tenon 22 is provided with a guide slope 224 on one side of the lower side 223.

[0047] Specifically, in this embodiment, the notch 221 allows the positioning tenon 22 to have a certain elastic deformation capacity when subjected to lateral compression. During the insertion process, it can effectively absorb and compensate for minor alignment deviations, playing an adaptive adjustment role and reducing the difficulty of insertion. Simultaneously, the notch 221 can also reduce material usage to some extent, achieving structural lightweighting. Furthermore, the guide slope 224 allows the positioning tenon 22 to provide guidance when it contacts the end of the lower steel hoist 31 in the initial stage of insertion, converting horizontal deviations into smooth vertical sliding, reducing the risk of jamming, and achieving preliminary, flexible automatic alignment, further improving the success rate of one-time hoisting placement.

[0048] In some other embodiments, the notch 221 can be designed in different shapes, such as V-shape or U-shape, to optimize stress distribution. Simultaneously, to facilitate installation, a lubricating coating or lubricating oil can be added to the surface of the positioning tenon 22 to reduce frictional resistance and further improve the smoothness of the insertion. The combined design of the notch 221 and the guide slope 224 not only improves fault tolerance but also reduces insertion impact, protects the column surface, and extends service life.

[0049] like Figure 9-10 As shown, in a specific embodiment, if the height of the positioning tenon 22 exposed above the upper steel hoop 21 is defined as H1, and the preset distance between the inner lining eaves 32 and the opening end of the lower steel hoop 31 is defined as H2, then H1 and H2 satisfy: H1 > H2, so that a welding gap 23 is left between the end of the upper steel hoop 21 and the end of the lower steel hoop 31.

[0050] In this embodiment, the height of the positioning tenon 22 exposed above the upper steel hoop 21 is greater than the preset distance between the opening end of the inner lining eaves 32 and the lower steel hoop 31. This ensures that when the positioning tenon 22 abuts against the top of the inner lining eaves 32, a portion of the positioning tenon 22 is still exposed above the upper steel hoop 21 and the lower steel hoop 31, thus leaving a welding gap 23 between the end of the upper steel hoop 21 and the end of the lower steel hoop 31. This makes it easier to achieve high-quality penetration welding and improve the weld strength.

[0051] like Figure 11As shown, in one specific embodiment, the upper column 2 and / or the lower column 3 further include steel columns or reinforced concrete columns. After leveling by the leveling part 1, the upper steel hoop 21 and the lower steel hoop 31 are welded together by welding material filled in the welding gap 23, and the leveling part 1 is removed after welding. When the upper column 2 and / or the lower column 3 further include reinforced concrete columns, the upper steel hoop 21 and the lower steel hoop 31 are welded to the longitudinal reinforcing bars in the reinforced concrete column, respectively. The leveling part 1 in this embodiment is used as a temporary tooling, which can be removed and reused after leveling and welding are completed. This not only reduces material costs but also reduces the impact on the permanent structure, conforming to the modern engineering concept of "removable, adjustable, and repeatable" in prefabricated building construction, and has high economic value and promotion potential.

[0052] In summary, this leveling device systematically solves all three types of misalignment problems mentioned in the background technology through the process of "initial insertion and centering -> temporary fixing -> lateral leveling -> welding fixing -> removal of tooling". Its beneficial effects are mainly reflected in: greatly simplifying the correction process, transforming traditional complex, experience-dependent skill-based operations into simple, standardized operational operations; significantly reducing the time required for heavy cranes and the use of special equipment (such as multiple jacks), thus lowering the cost and time of the measures; and reducing modifications to the permanent structure through reusable temporary tooling, ensuring node quality, and overall improving the construction efficiency, economy, and safety of precast column connections.

[0053] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adaptive column connection leveling device, characterized in that, It includes at least two leveling parts (1), which are used to adjust the angle of the upper column (2) relative to the lower column (3) in the vertical direction. The upper column (2) and the lower column (3) are connected. In the connected state, the upper column (2) is located above the lower column (3) and the upper column (2) is partially inserted into the lower column (3). The leveling part (1) includes a support (11), an adjusting member (12), at least two upper reaction blocks (13) and at least two lower reaction blocks (14). The upper reaction blocks (13) are disposed on the side wall of the upper column (2), and the lower reaction blocks (14) are disposed on the side wall of the lower column (3). The support (11) is at least partially located between the upper reaction blocks (13) and the lower reaction blocks (14), and the support (11) abuts against the lower reaction blocks (14). The adjusting member (12) is disposed on the support (11) and abuts against the upper reaction blocks (13). The adjusting member (12) is configured to adjust the distance between the upper reaction blocks (13) and the support (11) to adjust the angle of the upper column (2).

2. The adaptive column connection leveling device according to claim 1, characterized in that, The support member (11) includes an upper support angle steel (111), a lower support angle steel (112), a left connecting angle steel (113), and a right connecting angle steel (114). The upper support angle steel (111) and the lower support angle steel (112) are arranged vertically at intervals and located between the upper reaction block (13) and the lower reaction block (14). The left connecting angle steel (113) and the right connecting angle steel (114) are arranged horizontally at intervals and are respectively connected to the upper support angle steel (111) and the lower support angle steel (112).

3. The adaptive column connection leveling device according to claim 2, characterized in that, The adjusting component (12) includes at least two leveling bolts (121) and at least two fastening nuts (122). The fastening nuts (122) are fixedly disposed on the top side of the upper support angle steel (111). The leveling bolts (121) pass through the upper support angle steel (111) and are screwed to the fastening nuts (122). The end of the leveling bolts (121) abuts against the upper reaction block (13).

4. The adaptive column connection leveling device according to claim 2 or 3, characterized in that, The left connecting angle steel (113) and the right connecting angle steel (114) are provided with a plurality of mounting holes (115) at intervals along the length direction. The upper supporting angle steel (111) and the lower supporting angle steel (112) are provided with two waist-shaped holes (116) at intervals along the length direction. The upper supporting angle steel (111) / the lower supporting angle steel (112) are detachably connected to the left connecting angle steel (113) and the right connecting angle steel (114) by connecting bolts (117) that pass through the mounting holes (115) and the waist-shaped holes (116).

5. The adaptive column connection leveling device according to claim 4, characterized in that, When the leveling part (1) is being leveled, the upper supporting angle steel (111) and the lower supporting angle steel (112) are closely attached to one side wall of the upper column (2) and the lower column (3), and the left connecting angle steel (113) and the right connecting angle steel (114) are respectively closely attached to the other two side walls adjacent to the side wall.

6. The adaptive column connection leveling device according to any one of claims 1-3 or 5, characterized in that, It also includes a temporary fixing long screw (15) and a nut, the nut being screwed to the fixing long screw, the temporary fixing long screw (15) passing through the upper column (2) and the lower column (3), and used to temporarily fix the two after the upper column (2) and the lower column (3) are connected.

7. The adaptive column connection leveling device according to claim 2, 3, or 5, characterized in that, The upper support angle steel (111) and the lower support angle steel (112) are respectively provided with at least two connecting plates (16) on opposite sides. The connecting plate (16) of the upper support angle steel (111) is connected to the upper reaction block (13) by anti-overturning bolts (17), and the connecting plate (16) of the lower support angle steel (112) is connected to the lower reaction block (14) by anti-overturning bolts (17).

8. The adaptive column connection leveling device according to claim 2, 3, or 5, characterized in that, The support member (11) further includes an upper limit angle steel (118) and a lower limit angle steel (119). The upper limit angle steel (118) is located on the side of the upper reaction block (13) away from the upper support angle steel (111), and at least two anti-overturning bolts (17) are provided on the upper limit angle steel (118). The anti-overturning bolts (17) abut against the top side of the upper reaction block (13). The lower limit angle steel (119) is located on the side of the lower reaction block (14) away from the lower support angle steel (112), and at least two anti-overturning bolts (17) are provided on the lower limit angle steel (119). The anti-overturning bolts (17) abut against the bottom side of the lower reaction block (14).

9. The adaptive column connection leveling device according to any one of claims 1-3 or 5, characterized in that, The upper column (2) includes an upper steel hoop (21) and a positioning tenon (22). The positioning tenon (22) is fixedly installed on the inner wall of the upper steel hoop (21), and the positioning tenon (22) is partially exposed outside the upper steel hoop (21). The lower column (3) includes a lower steel hoop (31) and an inner lining eaves (32). The inner lining eaves (32) is fixedly installed on the inner wall of the lower steel hoop (31), and there is a preset distance between the inner lining eaves (32) and the opening end of the lower steel hoop (31). In the connected state, the positioning tenon (22) is at least partially inserted into the lower steel hoop (31), and the end of the positioning tenon (22) abuts against the inner lining eaves (32).

10. The adaptive column connection leveling device according to claim 9, characterized in that, The positioning tenon (22) is provided with at least two notches (221), and the at least two notches (221) are arranged circumferentially spaced along the positioning tenon (22); the positioning tenon (22) has an upper side (222) and a lower side (223) in the height direction, the lower side (223) is located on the side of the positioning tenon (22) away from the upper steel hoop (21), the opening side of the notch (221) penetrates the lower side (223), and there is a preset distance between the top side of the notch (221) and the upper side (222); the positioning tenon (22) is provided with a guide slope (224) on one side of the lower side (223).

11. The adaptive column connection leveling device according to claim 10, characterized in that, Define the height of the positioning tenon (22) exposed above the upper steel hoop (21) as H1, and define the preset distance between the inner lining eaves (32) and the opening end of the lower steel hoop (31) as H2. Then H1 and H2 satisfy: H1 > H2, so that a welding gap (23) is left between the end of the upper steel hoop (21) and the end of the lower steel hoop (31).

12. The adaptive column connection leveling device according to claim 11, characterized in that, The upper column (2) and / or the lower column (3) further include steel columns or reinforced concrete columns; after being leveled by the leveling part (1), the upper steel hoop (21) and the lower steel hoop (31) are welded together by the welding material filled in the welding gap (23), and the leveling part (1) is removed after the welding connection.

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