Elevator frame conversion node and method

Abstract

The present invention provides a new type of conversion node for an elevator frame, wherein an upper steel frame connection assembly is arranged at the bottom end of a corner of a square elevator shaft steel frame formed by an upper steel frame structure of the new type of conversion node for the elevator frame, the upper steel frame connection assembly comprises a node plate welded to the bottom end of a frame column of the upper steel frame, a connection hole is arranged on the node plate, and correspondingly, a lower steel frame connection assembly is arranged at the top end of a corner of the square elevator shaft steel frame formed by the upper steel frame structure, the upper steel frame connection assembly and the lower steel frame connection assembly are positioned and connected via the connection hole, which can effectively improve the speed and quality of manufacturing and installing the elevator steel structure, and its assembly method has the characteristics of efficient construction and convenient installation.

Description

Technical Field

[0001] The invention relates to the field of assembly of additional elevators, and in particular to an elevator frame conversion node and method. Background Art

[0002] Installing an elevator in an existing residence means installing an outdoor elevator on the outside of an existing multi-story residence. It does not require changing the original internal building structure of the existing residence, and the residents of the existing residence can enjoy the convenience brought by the elevator. Especially for the elderly living in existing residences in old communities, the installation of outdoor elevators can bring great convenience to life. There is no doubt that installing outdoor elevators is a convenient project worth promoting.

[0003] However, the traditional construction process of installing an elevator will bring many inconveniences to the residents in the house. Take the installation process of the steel structure of the elevator as an example. In the traditional installation process, the construction workers weld multiple sections of the steel structure on site to achieve a stable connection between the upper and lower sections of the steel structure. However, this solution has at least the following practical construction problems:

[0004] 1. During the welding process, high-temperature sparks will fly everywhere, which brings unsafe hidden dangers to the construction site. At least, the flying high-temperature sparks may burn people, especially the elderly who walk slowly and cannot dodge these flying sparks at all; and the flying high-temperature sparks may cause the combustion or explosion of flammable and explosive materials. The construction site is surrounded by existing residential buildings, and there are many flammable and explosive materials in the existing residential buildings that cannot be completely cleaned and avoided.

[0005] 2. The quality of welding is also difficult to guarantee. Since the installed elevator needs to be used outdoors, the stability of the steel structure directly affects the safety of outdoor elevators. However, the quality of welding is determined by the technical level of the construction workers. Once the welding position of the upper and lower sections of the steel structure is slightly deviated, it may cause the entire steel structure to be unstable. This slight position deviation is not noticeable after the construction is completed, but it may cause very serious safety accidents during long-term outdoor use.

[0006] 3. The long construction period affects the normal daily life of residents. Traditional steel structures require welding of multiple steel sections, and the welding time of each steel section is relatively long. Professional welding personnel are also required, which increases the construction cost to a certain extent.

[0007] In addition, in some cases, construction workers will choose to splice steel structures by bolting, and then install the external protective structure. However, this connection method usually requires a large operating space and installation of auxiliary facilities, which increases the outer dimensions of the steel frame structure and increases the overall cost of the elevator steel structure. Moreover, for prefabricated modular steel structures, the on-site splicing node operation space is extremely limited, and conventional bolted steel structure connection nodes can no longer meet the requirements.

[0008] As more and more existing residences need to install outdoor elevators, it is urgent and important to improve the assembly efficiency and quality of the steel structure for installing elevators. Summary of the invention

[0009] The object of the present invention is to provide an elevator frame conversion node and method, which can effectively improve the speed and quality of elevator steel structure manufacturing and installation, and its assembly method has the characteristics of high construction efficiency and convenient installation.

[0010] The technical solution provides an elevator frame conversion node, which at least includes: an upper steel frame structure and a lower steel frame structure, wherein the upper steel frame structure is erected on the lower steel frame structure; wherein the upper steel frame structure is composed of upper steel frame frame columns and upper steel frame connecting beams arranged in parallel, wherein the upper steel frame connecting beams connect adjacent upper steel frame frame columns to form a square elevator shaft steel frame, wherein an upper steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame, and the upper steel frame connecting assembly includes a node plate welded to the bottom end of the upper steel frame frame column, and a node plate is arranged on the node plate Connecting hole; wherein the lower steel frame structure is composed of lower steel frame frame columns and upper steel frame connecting beams arranged in parallel, the lower steel frame connecting beams connect adjacent lower steel frame frame columns to form a square elevator shaft steel frame together, wherein a lower steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame, the lower steel frame connecting assembly includes a node plate welded to the top end of the lower steel frame frame column, and a connecting hole is arranged on the node plate; during assembly, the bolts pass through the connecting holes of the upper steel frame connecting assembly and the lower steel frame connecting assembly to assemble the upper steel frame structure and the lower steel frame structure.

[0011] On the other hand, the technical solution provides an assembly method of an elevator frame conversion node, comprising the following steps:

[0012] Step 1: prefabricate an upper steel frame connection assembly on the upper steel frame structure, and prefabricate a lower steel frame connection assembly on the lower steel frame structure;

[0013] Step 2: In the pre-assembly, bolts are passed through the corresponding connection holes on the upper steel frame connection assembly and the lower steel frame connection assembly to test the parallelism of the upper steel frame structure and the lower steel frame structure after assembly. If they are not parallel, remake or adjust the lower steel frame connection assembly and the upper steel frame connection assembly. If they are parallel, transport them to the site for construction;

[0014] Step 3: hoist the lower steel frame structure to make it vertical to the ground surface, hoist the upper steel frame structure just above the lower steel frame structure, and adjust the position of the upper steel frame structure through the positions of the connection holes of the lower steel frame connection assembly and the upper steel frame connection assembly;

[0015] Step 4: Bolt the connection holes on the lower steel frame connection assembly and the upper steel frame connection assembly.

[0016] Compared with the prior art, this technical solution has the following technical effects:

[0017] 1. Corresponding steel columns and steel beams are set on the upper steel structure and the lower steel structure, and the positioning and structural connection of the upper and lower steel structures are realized through the positioning, matching and assembly of the steel columns and steel beams.

[0018] 2. The steel columns and steel beams of this technical solution are obtained through precise mechanical structure analysis and calculation, and can reliably transmit the structural internal forces generated under various load conditions to ensure the stability of the connection between the upper and lower steel structures and the safety of the structure.

[0019] 3. The steel columns and steel beams of the steel frame connection structure are arranged on the top and bottom sides of the steel structure, which can fully meet the characteristics of fully assembled production of the elevator steel frame structure and the external protective structure. While meeting the requirements of the elevator process, the elevator steel frame can adopt the optimal external dimensions as much as possible, which can fully reduce the project cost.

[0020] 4. All components of the steel frame connection structure are manufactured in the factory and connected on site by bolts. They are easy to manufacture and process, quick to install, and have a construction period significantly lower than existing steel structure connection methods. The processing and installation quality is excellent and controllable.

[0021] 5. The steel frame connection structure fully considers the actual installation conditions such as different floor heights, and can cover areas in China with different basic design wind pressures, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a structural schematic diagram of an elevator frame conversion node according to an embodiment of the present invention.

[0023] Figure 2 is based on Figure 1 A schematic structural diagram of the upper steel structure of the steel frame connection structure corresponding to the embodiment.

[0024] Figure 3 is based on Figure 1 A schematic structural diagram of the lower steel structure of the steel frame connecting structure corresponding to the embodiment.

[0025] Figure 4 is a structural schematic diagram of an elevator frame conversion node according to another embodiment of the present invention.

[0026] Figure 5 is based on Figure 4 A schematic structural diagram of the upper steel structure of the steel frame connection structure corresponding to the embodiment.

[0027] Figure 6 is based on Figure 4 A schematic structural diagram of the lower steel structure of the steel frame connecting structure corresponding to the embodiment.

[0028] In the figure: 10-upper steel frame structure, 11-upper steel frame frame column, 12-upper steel frame connecting beam, 13-upper steel frame connecting short column, 14-upper steel frame node plate, 141-upper steel frame first node plate, 142-upper steel frame second node plate, 15-upper steel frame node plate connecting hole, 16-upper steel frame connecting flange, 161-upper steel frame connecting flange support plate, 162-upper steel frame connecting flange connecting plate, 17-upper steel frame connecting flange connecting hole, 20- Lower steel frame structure, 21-lower steel frame frame column, 22-lower steel frame connecting beam, 23-lower steel frame short beam, 24-lower steel frame connecting short column, 25-lower steel frame node plate, 251-lower steel frame first node plate, 252-upper steel frame second node plate, 26-lower steel frame node plate connecting hole, 27-lower steel frame connecting flange, 271-lower steel frame connecting flange supporting plate, 272-lower steel frame connecting flange connecting plate, 28-lower steel frame connecting flange connecting hole. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying 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 belong to the scope of protection of the present invention.

[0030] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0031] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0032] Different from the welding process and bolt connection of the traditional elevator steel structure, this technical solution provides a new elevator frame conversion node and corresponding assembly method. It is worth mentioning that the steel frame connection structure provided by this solution is particularly suitable for the assembly of integrally assembled elevators. The integrally assembled elevator refers to a prefabricated steel frame structure prefabricated by an on-site assembly factory to quickly complete the erection of the elevator steel frame. A fast and efficient elevator assembly method. The steel frame connection structure provided by this solution is set at the connection end of the prefabricated steel frame. The on-site assemblers can connect the upper and lower prefabricated steel frames through the preset steel frame connection structure on the steel frame. It has the advantages of precise positioning, stable connection structure, and easy installation.

[0033] like Figures 1 to 3 As shown, the present technical solution provides an elevator frame conversion node of an embodiment, comprising at least:

[0034] An upper steel frame structure (10) and a lower steel frame structure (20), wherein the upper steel frame structure (10) is erected on the lower steel frame structure (20);

[0035] The upper steel frame structure (10) is composed of upper steel frame columns (11) and upper steel frame connecting beams (12) arranged in parallel, the upper steel frame connecting beams (12) are connected to adjacent upper steel frame columns (11) to form a square elevator shaft steel frame, wherein an upper steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame, and the upper steel frame connecting assembly includes a node plate welded to the bottom end of the upper steel frame column (11), and a connecting hole is arranged on the node plate;

[0036] The lower steel frame structure (20) is composed of lower steel frame columns (21) and lower steel frame connecting beams (22) arranged in parallel, the lower steel frame connecting beams (22) connect adjacent lower steel frame columns (21) to form a square elevator shaft steel frame, wherein a lower steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame, the lower steel frame connecting assembly includes a node plate welded to the top end of the lower steel frame column (21), and a connecting hole is arranged on the node plate;

[0037] During assembly, bolts are passed through the connection holes of the upper steel frame connection assembly and the lower steel frame connection assembly to assemble the upper steel frame structure (10) and the lower steel frame structure (20).

[0038] Specifically, the upper steel frame connection assembly includes an upper steel frame connection short column (13) welded to the bottom side of the upper steel frame connection cross beam (12) and an upper steel frame node plate (14) connected to the upper steel frame connection short column (13); the upper steel frame node plate (14) is connected to the upper steel frame frame column (11), that is, the upper steel frame connection short column (13) and the upper steel frame frame column (11) are connected via the upper steel frame node plate (14).

[0039] The upper steel frame connecting cross beams (12) on both sides of each upper steel frame column (11) are welded to the bottom of the upper steel frame connecting short columns (13). In addition, the width of the upper steel frame node plate (14) is the same as the column width and the thickness is 30 mm.

[0040] An upper steel frame node plate (14) is welded to the bottom end of each upper steel frame connecting short column (13), and the upper steel frame node plates (14) on both sides of each upper steel frame frame column (11) intersect at the position of the upper steel frame frame column (11).

[0041] In one embodiment of the present technical solution, the upper steel frame node plate (14) comprises an upper steel frame first node plate (141) and an upper steel frame second node plate (142), wherein the upper steel frame first node plate (141) and the upper steel frame second node plate (142) are arranged to intersect vertically to form an L-shaped structure, and are respectively placed on both sides of the same upper steel frame frame column (11).

[0042] The lengths of the first node plate (141) of the upper steel frame and the second node plate (142) of the upper steel frame can be the same or different, depending on the specific upper steel frame structure (10). It is worth mentioning that in order to better transmit the bending moment, axial force and shear force of the steel frame.

[0043] In addition, the upper steel frame node plate (14) is provided with an upper steel frame node plate connection hole (15), wherein the upper steel frame node plate connection hole (15) is symmetrically arranged about the central axis of the upper steel frame node plate (14) to ensure the stability of the structure.

[0044] In the technical solution, the upper steel frame connection short column (13) is placed on the upper steel frame node plate (14) near the side of the upper steel frame node plate (14). In addition, upper steel frame node plate connection holes (15) are provided on the upper steel frame node plates (14) on both sides of the upper steel frame connection short column (13), thereby ensuring the stability of the connection structure.

[0045] The upper steel frame node plate (14) is arranged flush with the bottom side of the upper steel frame frame column (11).

[0046] Correspondingly, the positions of the connection holes on the lower steel frame structure (20) correspond one to one with the positions of the connection holes (15) on the upper steel frame node plate, and the upper steel frame structure (10) and the lower steel frame structure (20) can be accurately positioned according to the correspondence of the connection holes.

[0047] The lower steel frame columns (21) of the lower steel frame structure (20) are connected by a lower steel frame connecting crossbeam (22) near the bottom side, and two lower steel frame columns (21) located on the same side are welded with lower steel frame short beams (23) near the top side. The other two lower steel frame columns (21) located on the same side are provided with lower steel frame short beams (23) on one side near the top side, and are connected by a lower steel frame connecting crossbeam (22) on the other side, wherein the lower steel frame short beams (23) located on the same side are spaced apart from each other.

[0048] A lower steel frame connecting short column (24) and a lower steel frame node plate (25) connected to the lower steel frame connecting short column (24) are welded to the top sides of the lower steel frame connecting cross beam (22) and the lower steel frame short beam (23); the lower steel frame node plate (25) is connected to the lower steel frame frame column (21), that is, the lower steel frame connecting short column (24) and the lower steel frame frame column (21) are connected via the lower steel frame node plate (25).

[0049] The lower steel frame connecting cross beams (22) and the top sides of the lower steel frame short beams (23) on both sides of each lower steel frame frame column (21) are welded with lower steel frame connecting short columns (24).

[0050] A lower steel frame node plate (25) is welded to the top of each lower steel frame connecting short column (24), and the lower steel frame node plates (25) on both sides of each lower steel frame frame column (21) intersect at the position of the lower steel frame frame column (21). The width of the lower steel frame node plate (25) is the same as the column width, and the thickness is 30 mm.

[0051] In one embodiment of the present technical solution, the lower steel frame node plate (25) comprises a lower steel frame first node plate (251) and a lower steel frame second node plate (252), wherein the lower steel frame first node plate (251) and the lower steel frame second node plate (252) are arranged to intersect vertically to form an L-shaped structure, and are respectively placed on both sides of the same lower steel frame column (21).

[0052] The lengths of the first node plate (251) of the lower steel frame and the second node plate (252) of the lower steel frame can be the same or different, depending on the specific lower steel frame structure (20). It is worth mentioning that in order to better transmit the bending moment, axial force and shear force of the steel frame.

[0053] In addition, the lower steel frame node plate (25) is provided with a lower steel frame node plate connection hole (26), wherein the lower steel frame node plate connection holes (26) are symmetrically arranged about the central axis of the lower steel frame node plate (25) to ensure the stability of the structure.

[0054] In the technical solution, the lower steel frame connection short column (24) is placed on the lower steel frame node plate (25) near the side of the lower steel frame node plate (25). The lower steel frame node plate connection holes (26) are provided on the lower steel frame node plates (25) on both sides of the lower steel frame connection short column (24), thereby ensuring the stability of the connection structure. The lower steel frame node plate (25) is arranged parallel to the top side of the lower steel frame frame column (21).

[0055] According to experimental tests, the setting of the elevator frame conversion node provided by this solution increases the bearing capacity by at least 40% compared with the traditional connection method.

[0056] like Figures 4 to 6 As shown, the technical solution further provides an embodiment of the structure of the elevator frame conversion node, in which the upper steel frame connection assembly includes an upper steel frame connection flange (16) welded to the bottom side of the upper steel frame connection beam (12), wherein the length of the upper steel frame connection flange (16) is equal to the length of the upper steel frame connection beam (12), that is, the top side of the upper steel frame connection flange (16) is connected to the upper steel frame connection beam (12), and the two sides are respectively connected to the upper steel frame frame column (11), and the bottom side of the upper steel frame connection flange (16) is parallel to the bottom side of the upper steel frame frame column (11); wherein the upper steel frame connection flange connection hole (17) is provided on the upper steel frame connection flange (16).

[0057] Specifically, the upper steel frame connection flange (16) further comprises an upper steel frame connection flange support plate (161) and an upper steel frame connection flange connecting plate (162), wherein the upper steel frame connection flange support plate (161) is vertically arranged on the upper steel frame connection flange connecting plate (162) at intervals, the upper steel frame connection flange connecting plate (162) is arranged parallel to the bottom side of the upper steel frame frame column (11), and the other end of the upper steel frame connection flange support plate (161) is connected to the upper steel frame connection beam (12).

[0058] In one embodiment of the present technical solution, the upper steel frame connecting flange support plate (161) is a ladder structure, and the position of the upper steel frame connecting flange support plate (161) close to the inner side of the upper steel frame structure (10) is designed as an inclined surface, so as to better disperse the force applied downward by the upper steel frame structure (10).

[0059] In addition, the upper steel frame connection flange support plate (161) is a ladder structure, and the position of the upper steel frame connection flange support plate (161) close to the inner side of the upper steel frame structure (10) is designed as an inclined surface; the lower steel frame connection flange support plate (271) is a ladder structure, and the position of the lower steel frame connection flange support plate (271) close to the inner side of the lower steel frame structure (20) is designed as an inclined surface.

[0060] Correspondingly, the lower steel frame connection assembly includes a lower steel frame connection flange (27) welded to the top side of the lower steel frame connection beam (22), wherein the length of the lower steel frame connection flange (27) is equal to the length of the lower steel frame connection beam (22), that is, the top side of the lower steel frame connection flange (27) is connected to the lower steel frame connection beam (22), and the two sides are respectively connected to the lower steel frame frame column (21), and the top side of the lower steel frame connection flange (27) is parallel to the top side of the lower steel frame frame column (21); wherein the lower steel frame connection flange connection hole (28) is arranged on the lower steel frame connection flange (27).

[0061] Specifically, the lower steel frame connection flange (27) further includes a lower steel frame connection flange support plate (271) and a lower steel frame connection flange connecting plate (272), wherein the lower steel frame connection flange support plate (271) is vertically arranged on the lower steel frame connection flange connecting plate (272) at intervals, the lower steel frame connection flange connecting plate (272) is arranged parallel to the bottom side of the lower steel frame frame column (21), and the other end of the lower steel frame connection flange support plate (271) is connected to the lower steel frame connection beam (22).

[0062] In one embodiment of the present technical solution, the lower steel frame connecting flange support plate (271) is a ladder structure, and the position of the lower steel frame connecting flange support plate (271) close to the inner side of the lower steel frame structure (20) is designed as an inclined surface, so as to better disperse the force applied downward by the upper steel frame structure (10).

[0063] In addition, the lower steel frame connection flange support plates (271) are evenly spaced and placed on the lower steel frame connection flange connecting plates (272). The lower steel frame connection flange connecting plates (272) between the two lower steel frame connection flange support plates (271) are provided with lower steel frame connection flange connecting holes (28).

[0064] The assembly method of the elevator frame conversion node is as follows:

[0065] Step 1: prefabricate an upper steel frame connection assembly on the upper steel frame structure (10), and prefabricate a lower steel frame connection assembly on the lower steel frame structure (20);

[0066] Step 2: After pre-assembly, bolts are passed through corresponding connection holes on the upper steel frame connection assembly and the lower steel frame connection assembly to test the parallelism of the upper steel frame structure (10) and the lower steel frame structure (20). If they are not parallel, the lower steel frame connection assembly and the upper steel frame connection assembly are remade or adjusted. If they are parallel, they are transported to the construction site;

[0067] Step 3: hoist the lower steel frame structure (20) so that it is vertically arranged on the ground surface, hoist the upper steel frame structure (10) directly above the lower steel frame structure (20), and adjust the position of the upper steel frame structure (10) by the position of the connection holes of the lower steel frame connection assembly and the upper steel frame connection assembly;

[0068] Step 4: Bolt the connection holes on the lower steel frame connection assembly and the upper steel frame connection assembly.

[0069] The structures of the upper steel frame connecting assembly and the lower steel frame connecting assembly are as described above and will not be further elaborated here.

[0070] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. An elevator frame conversion node, characterized in that: At least: An upper steel frame structure (10) and a lower steel frame structure (20), wherein the upper steel frame structure (10) is erected on the lower steel frame structure (20); The upper steel frame structure (10) is composed of upper steel frame columns (11) and upper steel frame connecting beams (12) arranged in parallel, the upper steel frame connecting beams (12) are connected to adjacent upper steel frame columns (11) to form a square elevator shaft steel frame, wherein an upper steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame, and the upper steel frame connecting assembly includes a node plate welded to the bottom end of the upper steel frame column (11), and a connecting hole is arranged on the node plate; The lower steel frame structure (20) is composed of lower steel frame columns (21) and lower steel frame connecting beams (22) arranged in parallel, the lower steel frame connecting beams (22) connect adjacent lower steel frame columns (21) to form a square elevator shaft steel frame, wherein a lower steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame, the lower steel frame connecting assembly includes a node plate welded to the top end of the lower steel frame column (21), and a connecting hole is arranged on the node plate; The upper steel frame connection assembly comprises an upper steel frame connection short column (13) welded to the bottom side of the upper steel frame connection cross beam (12) and an upper steel frame node plate (14) connected to the upper steel frame connection short column (13), the upper steel frame node plate (14) is connected to the upper steel frame frame column (11), and the upper steel frame node plate (14) comprises an upper steel frame first node plate (141) and an upper steel frame second node plate (142), wherein the upper steel frame first node plate (141) and the upper steel frame second node plate (142) are arranged to intersect vertically to form an L-shaped structure, and are respectively placed on both sides of the same upper steel frame frame column (11); the lower steel frame connection assembly comprises an upper steel frame node plate (141) welded to the lower steel frame connection cross beam (12) and an upper steel frame node plate (144) connected to the upper steel frame frame column (11). A lower steel frame connecting short column (24) connected to the top side of the cross beam (22) and the lower steel frame short beam (23) and a lower steel frame node plate (25) connected to the lower steel frame connecting short column (24), wherein the lower steel frame short beam (23) and the lower steel frame connecting cross beam (22) are welded on the side of the lower steel frame frame column (21) near the top side, and the lower steel frame node plate (25) includes a lower steel frame first node plate (251) and a lower steel frame second node plate (252), wherein the lower steel frame first node plate (251) and the lower steel frame second node plate (252) are arranged to intersect vertically to form an L-shaped structure, and are respectively placed on both sides of the same upper steel frame frame column (11); During assembly, bolts are passed through the connection holes of the upper steel frame connection assembly and the lower steel frame connection assembly to assemble the upper steel frame structure (10) and the lower steel frame structure (20).

2. The elevator frame conversion node according to claim 1, characterized in that: An upper steel frame node plate (14) is welded to the bottom end of each upper steel frame connecting short column (13), and the upper steel frame node plates (14) on both sides of each upper steel frame frame column (11) intersect at the position of the upper steel frame frame column (11); a lower steel frame node plate (25) is welded to the top end of each lower steel frame connecting short column (24), and the lower steel frame node plates (25) on both sides of each lower steel frame frame column (21) intersect at the position of the lower steel frame frame column (21).

3. The elevator frame conversion node according to claim 1, characterized in that: The upper steel frame node plate (14) is provided with an upper steel frame node plate connection hole (15), wherein the upper steel frame node plate connection hole (15) is symmetrically arranged about the center axis of the upper steel frame node plate (14); the lower steel frame node plate (25) is provided with a lower steel frame node plate connection hole (26), wherein the lower steel frame node plate connection hole (26) is symmetrically arranged about the center axis of the lower steel frame node plate (25).

4. The elevator frame conversion node according to claim 1, characterized in that: The upper steel frame connection short column (13) is arranged on the upper steel frame node plate (14) at a position close to the side of the upper steel frame node plate (14), and upper steel frame node plate connection holes (15) are provided on the upper steel frame node plates (14) on both sides of the upper steel frame connection short column (13); the lower steel frame connection short column (24) is arranged on the lower steel frame node plate (25) at a position close to the side of the lower steel frame node plate (25), and lower steel frame node plate connection holes (26) are provided on the lower steel frame node plates (25) on both sides of the lower steel frame connection short column (24).

5. An elevator frame conversion node, characterized in that: At least: An upper steel frame structure (10) and a lower steel frame structure (20), wherein the upper steel frame structure (10) is erected on the lower steel frame structure (20); The upper steel frame structure (10) is composed of upper steel frame columns (11) and upper steel frame connecting beams (12) arranged in parallel, and the upper steel frame connecting beams (12) connect adjacent upper steel frame columns (11) to form a square elevator shaft steel frame, wherein an upper steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame; The lower steel frame structure (20) is composed of lower steel frame columns (21) and lower steel frame connecting beams (22) arranged in parallel, the lower steel frame connecting beams (22) connect adjacent lower steel frame columns (21) to form a square elevator shaft steel frame, wherein a lower steel frame connecting assembly is arranged at the bottom end of the corner of the square elevator shaft steel frame; The upper steel frame connection assembly comprises an upper steel frame connection flange (16) welded to the bottom side of the upper steel frame connection beam (12); the top side of the upper steel frame connection flange (16) is connected to the upper steel frame connection beam (12); the two sides are respectively connected to the upper steel frame frame columns (11); and the bottom side of the upper steel frame connection flange (16) is flush with the bottom side of the upper steel frame frame column (11); the upper steel frame connection flange (16) comprises an upper steel frame connection flange support plate (161) and an upper steel frame connection flange connecting plate (162); the upper steel frame connection flange connecting plate (162) is arranged flush with the bottom side of the upper steel frame frame column (11); the other end of the upper steel frame connection flange support plate (161) is connected to the upper steel frame connection beam (12); wherein the upper steel frame connection flange connection hole (17) is arranged on the upper steel frame connection flange (16); The lower steel frame connection assembly comprises a lower steel frame connection flange (27) welded to the top side of the lower steel frame connection beam (22); the top side of the lower steel frame connection flange (27) is connected to the lower steel frame connection beam (22); the two sides are respectively connected to the lower steel frame frame columns (21); and the top side of the lower steel frame connection flange (27) is flush with the top side of the lower steel frame frame column (21); the lower steel frame connection flange (27) comprises a lower steel frame connection flange support plate (271) and a lower steel frame connection flange connecting plate (272); the lower steel frame connection flange connecting plate (272) is arranged flush with the bottom side of the lower steel frame frame column (21); the other end of the lower steel frame connection flange support plate (271) is connected to the lower steel frame connection beam (22); wherein the lower steel frame connection flange connection hole (28) is arranged on the lower steel frame connection flange (27); During assembly, bolts are passed through the connection holes of the upper steel frame connection assembly and the lower steel frame connection assembly to assemble the upper steel frame structure (10) and the lower steel frame structure (20).

6. The elevator frame conversion node according to claim 5, characterized in that: The upper steel frame connecting flange support plate (161) is a ladder structure, and the position of the upper steel frame connecting flange support plate (161) close to the inner side of the upper steel frame structure (10) is designed as an inclined surface; the lower steel frame connecting flange support plate (271) is a ladder structure, and the position of the lower steel frame connecting flange support plate (271) close to the inner side of the lower steel frame structure (20) is designed as an inclined surface.

7. The elevator frame conversion node according to claim 5, characterized in that: The upper steel frame connection flange support plates (161) are evenly spaced and arranged on the upper steel frame connection flange connecting plates (162), and the upper steel frame connection flange connecting plates (162) between the two upper steel frame connection flange support plates (161) are provided with upper steel frame connection flange connecting holes (17); the lower steel frame connection flange support plates (271) are evenly spaced and arranged on the lower steel frame connection flange connecting plates (272), and the lower steel frame connection flange connecting plates (272) between the two lower steel frame connection flange support plates (271) are provided with lower steel frame connection flange connecting holes (28).

8. An assembly method of an elevator frame conversion node, using the elevator frame conversion node according to any one of claims 1 to 4, or using the elevator frame conversion node according to any one of claims 5 to 7, characterized in that: The following steps are involved: Step 1: prefabricate an upper steel frame connection assembly on the upper steel frame structure (10), and prefabricate a lower steel frame connection assembly on the lower steel frame structure (20); Step 2: After pre-assembly, bolts are passed through corresponding connection holes on the upper steel frame connection assembly and the lower steel frame connection assembly to test the parallelism of the upper steel frame structure (10) and the lower steel frame structure (20). If they are not parallel, the lower steel frame connection assembly and the upper steel frame connection assembly are remade or adjusted. If they are parallel, they are transported to the construction site; Step 3: hoist the lower steel frame structure (20) so that it is arranged perpendicular to the ground surface, hoist the upper steel frame structure (10) directly above the lower steel frame structure (20), and adjust the position of the upper steel frame structure (10) by the position of the connection holes of the lower steel frame connection assembly and the upper steel frame connection assembly; Step 4: Bolt the connection holes on the lower steel frame connection assembly and the upper steel frame connection assembly.

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