Lift shaft steel frame

By welding the elevator shaft steel frame in sections in the factory and connecting fasteners on site, the problems of unstable and low efficiency of welding quality in the prior art are solved, and more efficient installation and more stable quality are achieved.

CN222227824UActive Publication Date: 2024-12-24SHANGHAI ZHENHUA HEAVY IND
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Patent Information

Application Number
CN202323540807.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2024-12-24
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

The installation method of existing elevator shaft steel frames requires professional skills and equipment, and the quality of on-site welding is unstable, which affects residents' lives, and the on-site welding efficiency is low when installing elevators.

Method used

The elevator shaft steel frame is used for sectional welding. First, the columns and beams of the upper and lower frames of the frame are welded in the factory, and then fasteners are used to connect at the construction site to avoid on-site welding.

Benefits of technology

It improves assembly efficiency and assembly quality, reduces the influence of human factors, improves accuracy and quality stability, and improves the construction environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an elevator shaft steel frame which comprises an upper-section frame, a lower-section frame, a plurality of upper-section connecting columns and a plurality of lower-section connecting columns. A plurality of lower section connecting columns in one-to-one correspondence with the upper section connecting columns are arranged at the top of the lower section frame; each connecting assembly is correspondingly connected with one group of upper-section connecting columns and lower-section connecting columns, each connecting assembly comprises a connecting plate and a plurality of fasteners, the connecting plates are connected with the upper-section connecting columns and the lower-section connecting columns respectively, and the fasteners are arranged in the connecting plates, the upper-section connecting columns and the lower-section connecting columns in a penetrating mode respectively and fixed. And the upper-section frame and the lower-section frame are connected. According to the elevator shaft steel frame, the shaft steel frame is divided into the upper-section frame and the lower-section frame, and the upper-section frame and the lower-section frame are connected through the connecting assembly, so that the installation efficiency is effectively improved, and the installation quality is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of steel structure manufacturing and installation, in particular to an elevator shaft steel frame. Background Art

[0002] When installing an elevator shaft in an existing residential building, a frame steel structure made of square tubes will be used, and the shaft height is 18-22 meters. Usually, the elevator shaft steel frame is made of loose parts and welded on site, or the shaft steel frame is prefabricated and welded in the factory after being divided into sections, and then transported to the elevator installation site for section welding. However, this installation method requires professional skilled personnel and equipment for welding, and is easily affected by human factors, resulting in unstable on-site welding quality; on the other hand, the installation of elevators is all done in the community, and the on-site welding work has a greater impact on residents, and the residents' entry and exit affect the welding efficiency. Utility Model Content

[0003] In view of this, the utility model provides an elevator shaft steel frame, which can improve the assembly efficiency and assembly quality of the elevator shaft steel frame.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] According to an embodiment of the utility model, an elevator shaft steel frame comprises: an upper frame, a lower frame and a plurality of connection components. Among them, a plurality of upper connection columns are arranged at the bottom of the upper frame; a plurality of lower connection columns corresponding to the upper connection columns are arranged at the top of the lower frame; each connection component is connected to a group of upper connection columns and lower connection columns, and the connection component comprises a connection plate and a plurality of fasteners, the connection plate is respectively connected to the upper connection column and the lower connection column, and the plurality of fasteners are respectively inserted into the connection plate, the upper connection column and the lower connection column and fixed to connect the upper frame and the lower frame.

[0006] In this embodiment, the columns and beams in the upper frame and the lower frame are welded in the factory and transported in sections to the elevator installation construction site. Fasteners are used to connect the upper frame and the lower frame respectively, thereby avoiding on-site welding and improving assembly efficiency and quality.

[0007] In one embodiment of the present invention, the upper connecting column comprises:

[0008] Two groups of first upper side plates, the two groups of first upper side plates are arranged opposite to each other, and the two groups of first upper side plates are respectively provided with a plurality of opposite first upper mounting holes;

[0009] A plurality of first round tubes are arranged between the two groups of first upper side plates and are respectively connected to the first upper mounting holes on the two groups of first upper side plates, and the first round tubes are arranged along the first direction;

[0010] Two groups of second upper side plates, the two groups of second upper side plates are arranged opposite to each other and are respectively connected to the two groups of first upper side plates to form a square column, and the two groups of second upper side plates are respectively provided with a plurality of opposite second upper mounting holes;

[0011] A plurality of second round tubes are arranged between the two groups of second upper side plates and are respectively connected to the second upper mounting holes on the two groups of second upper side plates, and the second round tubes are arranged along a second direction, which is perpendicular to the first direction;

[0012] The first upper mounting hole and the second upper mounting hole are spaced apart in a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0013] In one embodiment of the present invention, the lower connecting column comprises:

[0014] Two groups of first lower side plates are arranged opposite to each other, and are respectively arranged corresponding to the two groups of first upper side plates. The two groups of first lower side plates are provided with a plurality of opposite first lower mounting holes;

[0015] A plurality of third round tubes are arranged between the two groups of first lower side plates and are respectively connected to the first lower mounting holes on the two groups of first lower side plates, and the third round tubes are arranged along the first direction;

[0016] Two sets of oppositely arranged second lower side plates are arranged corresponding to the two sets of second upper side plates and are respectively connected to the two sets of first lower side plates to form a square column, and the two sets of second lower side plates are respectively provided with a plurality of oppositely arranged second lower mounting holes;

[0017] A plurality of fourth circular tubes are arranged between the two groups of second lower side plates and are respectively connected to the second lower mounting holes on the two groups of second lower side plates. The fourth circular tubes are arranged along the second direction, and the first lower mounting holes and the second lower mounting holes are arranged at intervals in the third direction.

[0018] In one embodiment of the present invention, the connecting plate comprises:

[0019] Two groups of first connecting plates, the two groups of first connecting plates are arranged opposite to each other, and the first connecting plates are respectively connected to the first upper side plate and the first lower side plate, and the first connecting plates are provided with first through holes matching the first upper mounting holes and the first lower mounting holes;

[0020] Two groups of second connecting plates, the two groups of second connecting plates are arranged opposite to each other, and the second connecting plates are respectively connected to the second upper side plate and the second lower side plate, and the second connecting plates are provided with second through holes matching the second upper mounting holes and the second lower mounting holes;

[0021] The fasteners include first fasteners and second fasteners, and the plurality of first fasteners are respectively disposed in the first through hole and the first upper mounting hole, and in the first through hole and the first lower mounting hole, for connecting the upper frame and the lower frame;

[0022] The second fastener is disposed in the second through hole and the second upper mounting hole, and in the second through hole and the second lower mounting hole, for connecting the upper frame and the lower frame.

[0023] In one embodiment of the present invention, the fastener is formed as a threaded connection.

[0024] In an embodiment of the present invention, a single-ear locking washer is sleeved on the first fastener and the second fastener respectively.

[0025] In one embodiment of the present invention, a zinc coating is provided on the fastener.

[0026] In an embodiment of the present invention, reinforcing rib plates are respectively provided on the first connecting plate and the second connecting plate.

[0027] In one embodiment of the utility model, a first head plate is provided at one end of the upper connecting column facing the lower frame, and the first head plate is respectively connected to the two groups of first upper side plates and the two groups of second upper side plates.

[0028] In one embodiment of the utility model, a second head plate is provided at one end of the lower connecting column facing the upper frame, and the second head plate is respectively connected to the two groups of first lower side plates and the two groups of second lower side plates.

[0029] The above technical solution of the utility model has at least one of the following beneficial effects:

[0030] In the elevator shaft steel frame of the utility model, the columns and beams in the upper frame and the lower frame are welded in the factory and transported in sections to the construction site of the additional elevator. It can avoid the welding of scattered parts on site and improve the assembly efficiency. At the same time, the upper frame and the lower frame are connected respectively using connecting components to fix the upper frame and the lower frame, which can improve the installation efficiency and save the construction period. In addition, since there is no need for on-site welding, the influence of human factors in the on-site welding process is reduced, the accuracy and quality stability are improved, and the construction environment of the construction site of the additional elevator is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the elevator shaft steel frame of an embodiment of the utility model;

[0032] Figure 2 It is a schematic diagram of the exploded structure of the connecting assembly, the upper frame and the lower frame in the elevator shaft steel frame of the embodiment of the utility model;

[0033] Figure 3 It is a top view of the connecting assembly, the upper frame and the lower frame in the elevator shaft steel frame of the embodiment of the utility model;

[0034] Figure 4It is a structural schematic diagram of the connecting components, the upper frame and the lower frame in the elevator shaft steel frame of an embodiment of the utility model.

[0035] Figure numerals: 100, upper frame; 110, upper connecting column; 111, first upper side plate; 112, first circular tube; 113, second upper side plate; 114, second circular tube; 120, first head plate; 200, lower frame; 210, lower connecting column; 211, first lower side plate; 212, third circular tube; 213, second lower side plate; 214, fourth circular tube; 300, connecting assembly; 310, first connecting plate; 320, second connecting plate; 330, first fastener; 340, second fastener; 350, nut; 360, single-ear stop washer; 400, reinforcing rib plate. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0037] Firstly, an elevator shaft steel frame according to an embodiment of the utility model is described in detail below with reference to the accompanying drawings.

[0038] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of the elevator shaft steel frame of the utility model embodiment. Figure 1 As shown, the elevator shaft steel frame of the embodiment of the utility model includes: an upper frame 100, a lower frame 200 and a plurality of connection components 300. Among them, a plurality of upper connection columns 110 are arranged at the bottom of the upper frame 100. A plurality of lower connection columns 210 corresponding to the upper connection columns 110 are arranged at the top of the lower frame 200. Each connection component 300 corresponds to a group of upper connection columns 110 and lower connection columns 210, and the connection component 300 includes a connection plate and a plurality of fasteners, and the connection plate is respectively connected to the upper connection column and the lower connection column, and the plurality of fasteners are respectively inserted into the connection plate, the upper connection column 110 and the lower connection column 210 and fixed to connect the upper frame 100 and the lower frame 200.

[0039] In this embodiment, the elevator shaft steel frame is segmented into an upper frame 100 and a lower frame 200, and the columns and beams in the upper frame 100 and the lower frame 200 are welded in the factory and transported in sections to the construction site of the additional elevator. In this way, on-site welding of loose parts can be avoided and assembly efficiency can be improved. At the same time, the upper frame 100 and the lower frame 200 are respectively connected using a connecting assembly 300 to fix the upper frame 100 and the lower frame 200, which can improve installation efficiency and save construction time. In addition, since the connecting assembly 300 can directly connect the upper frame 100 and the lower frame 200, there is no need for on-site welding, which reduces the influence of human factors in the on-site welding process, improves accuracy and quality stability, and improves the construction environment of the additional elevator construction site.

[0040] refer to Figure 2 and Figure 3 , Figure 2 The exploded structural diagram of the connecting assembly 300, the upper frame 100 and the lower frame 200 in the elevator shaft steel frame of the embodiment of the utility model is shown in FIG. Figure 3 FIG. 1 is a top view of the connecting assembly 300, the upper frame 100 and the lower frame 200 in the elevator shaft steel frame of the embodiment of the utility model. Figure 2 and Figure 3 As shown, the upper connecting column 110 includes: two groups of first upper side plates 111, a plurality of first round tubes 112, two groups of second upper side plates 113 and a plurality of second round tubes 114. Among them, the two groups of first upper side plates 111 are arranged opposite to each other, and a plurality of first upper mounting holes are respectively arranged on the two groups of first upper side plates 111. A plurality of first round tubes 112 are arranged between the two groups of first upper side plates 111, and are respectively connected to the first upper mounting holes on the two groups of first upper side plates 111, and the first round tubes 112 are arranged along the first direction. The two groups of second upper side plates 113 are arranged opposite to each other, and are respectively connected to the two groups of first upper side plates 111 to form a square column, and a plurality of second upper mounting holes are arranged on the two groups of second upper side plates 113. A plurality of second round tubes 114 are arranged between the two groups of second upper side plates 113, and are respectively connected to the second upper mounting holes on the two groups of second upper side plates 113, and the second round tubes 114 are arranged along the second direction, and the second direction is perpendicular to the first direction. The first upper mounting hole and the second upper mounting hole are spaced apart in a third direction, and the third direction is perpendicular to the first direction and the second direction.

[0041] In this embodiment, two groups of first upper side plates 111 and two groups of second upper side plates 113 of the upper connecting column 110 are connected end to end to form a square column, and multiple groups of first upper mounting holes and second upper mounting holes are respectively provided along the third direction, that is, perpendicular to the ground. The upper connecting column 110 and the lower connecting column 210 can be fixedly connected by connecting components 300, respectively, with the first round tube 112 in the first upper mounting hole and the second round tube 114 in the second upper mounting hole. Thus, there is no need to weld on site, which reduces the influence of human factors in the on-site welding process, improves the accuracy and quality stability, and improves the construction environment of the construction site for installing the elevator. In addition, by arranging the first round tube 112 and the second round tube 114 arranged at intervals in the vertical direction and perpendicular to each other in the upper connecting column 110, the structural strength of the upper connecting column 110 can be effectively improved, and the stability of the upper connecting column 110 when connected to the lower connecting column 210 can be increased.

[0042] like Figure 2 and Figure 3 As shown, the lower connecting column 210 includes: two groups of first lower side plates 211 arranged oppositely, a plurality of third round tubes 212, two groups of second lower side plates 213 arranged oppositely, and a plurality of fourth round tubes 214. Among them, the two groups of first lower side plates 211 are respectively arranged correspondingly to the two groups of first upper side plates 111, and the two groups of first lower side plates 211 are provided with a plurality of first lower mounting holes oppositely. A plurality of third round tubes 212 are arranged between the two groups of first lower side plates 211, and are respectively connected to the first lower mounting holes on the two groups of first lower side plates 211, and the third round tubes 212 are arranged along the first direction. The two groups of second lower side plates 213 are arranged correspondingly to the two groups of second upper side plates 113, and are respectively connected to the two groups of first lower side plates 211 to form a square column, and the two groups of second lower side plates 213 are respectively provided with a plurality of second lower mounting holes oppositely. A plurality of fourth circular tubes 214 are arranged between the two groups of second lower side plates 213 and are respectively connected to the second lower mounting holes on the two groups of second lower side plates 213. The fourth circular tubes 214 are arranged along the second direction, and the first lower mounting holes and the second lower mounting holes are arranged at intervals in the third direction.

[0043] In this embodiment, two groups of first lower side plates 211 and two groups of second lower side plates 213 of the lower connecting column 210 are connected end to end to form a square column, and multiple groups of first lower mounting holes and second lower mounting holes are respectively provided in a direction perpendicular to the ground. The upper connecting column 110 and the lower connecting column 210 can be fixedly connected by connecting the third round tube 212 in the first lower mounting hole and the fourth round tube 214 in the second lower mounting hole respectively through the connecting assembly 300. Thus, there is no need to weld on site, which reduces the influence of human factors in the on-site welding process, improves the accuracy and quality stability, and improves the construction environment of the construction site of the additional elevator. In addition, by arranging the third round tube 212 and the fourth round tube 214 arranged at intervals in the vertical direction and perpendicular to each other in the lower connecting column 210, the structural strength of the upper connecting column 110 can be effectively improved, and the stability of the upper connecting column 110 when connected to the lower connecting column 210 can be increased.

[0044] like Figure 2 and Figure 3 As shown, the connecting plate includes two groups of first connecting plates 310 and two groups of second connecting plates 320. The two groups of first connecting plates 310 are arranged opposite to each other, and the first connecting plates 310 are respectively connected to the first upper side plate 111 and the first lower side plate 211, and the first connecting plates 310 are provided with first through holes matching the first upper mounting holes and the first lower mounting holes. The two groups of second connecting plates 320 are arranged opposite to each other, and the second connecting plates 320 are respectively connected to the second upper side plate 113 and the second lower side plate 213, and the second connecting plates 320 are provided with second through holes matching the second upper mounting holes and the second lower mounting holes. A plurality of first through holes matching the first lower mounting holes and a plurality of second through holes matching the second lower mounting holes are respectively provided on the first connecting plate 310 and the second connecting plate 320. As shown Figure 2 and Figure 3 As shown, the fastener is formed as a threaded connector, and the fastener includes a first fastener 330 and a second fastener 340. A plurality of first fasteners 330 are respectively arranged in the first through hole and the first upper mounting hole, and in the first through hole and the first lower mounting hole, for connecting the upper frame 100 and the lower frame 200. A plurality of second fasteners 340 are respectively arranged in the second through hole and the second upper mounting hole, and in the second through hole and the second lower mounting hole, for connecting the upper frame 100 and the lower frame 200. The first fastener 330 and the second fastener 340 are respectively connected to the nut 350. By arranging a plurality of mutually perpendicular first fasteners 330 and second fasteners 340, the connection strength between the upper connecting column 110 and the lower connecting column 210 can be effectively improved, and the stability when the upper connecting column 110 is connected to the lower connecting column 210 can be increased.

[0045] like Figure 2As shown, a single-ear stop washer 360 is sleeved on the first fastener 330 and the second fastener 340 respectively. By providing the single-ear stop washer 360, it is possible to prevent the first fastener 330 or the second fastener 340 from coming out due to the vibration of the elevator after the elevator is installed later. Thus, the stability of the connection between the upper connecting column 110 and the lower connecting column 210 is improved.

[0046] In one embodiment of the utility model, the fastener is provided with a zinc coating or a Dacromet coating. By providing the zinc coating or the Dacromet coating on the fastener, the corrosion resistance of the fastener can be effectively improved, and the stability of the connection between the upper connecting column 110 and the lower connecting column 210 can be further improved.

[0047] refer to Figure 4 , Figure 4 Schematic diagram of the structure of the connecting assembly 300, the upper frame 100 and the lower frame 200 in the elevator shaft steel frame of the utility model embodiment. Figure 4 As shown, the first connecting plate 310 and the second connecting plate 320 are respectively provided with reinforcing ribs 400. By providing the reinforcing ribs 400, the structural strength of the connecting plates can be effectively improved, and the stability of the connection between the upper connecting column 110 and the lower connecting column 210 can be improved.

[0048] like Figure 2 As shown, the end of the upper connecting column 110 facing the lower frame 200 is provided with a first end plate 120, and the end of the lower connecting column 210 facing the upper frame 100 is provided with a second end plate (not shown). By respectively providing the first end plate 120 and the second end plate, the compression resistance of the upper connecting column 110 and the lower connecting column 210 can be effectively improved, and deformation of the upper connecting column 110 and the lower connecting column 210 can be avoided.

[0049] In summary, in the elevator shaft steel frame of the embodiment of the utility model, the columns and beams in the upper frame 100 and the lower frame 200 are welded in the factory and transported in sections to the construction site of the additional elevator. It can avoid welding of loose parts on site and improve assembly efficiency. At the same time, the upper frame 100 and the lower frame 200 are connected respectively using the connecting assembly 300 to fix the upper frame 100 and the lower frame 200, which can improve installation efficiency and save construction time. In addition, since there is no need for on-site welding, the influence of human factors in the on-site welding process is reduced, the accuracy and quality stability are improved, and the construction environment of the construction site of the additional elevator is improved.

[0050] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate the existence of at least one. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0051] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. An elevator shaft steel frame, characterized in that: include: An upper frame, wherein a plurality of upper connecting columns are arranged at the bottom of the upper frame; A lower section frame, wherein a plurality of lower section connecting columns corresponding to the upper section connecting columns are arranged on the top of the lower section frame; A plurality of connection components, each of which corresponds to connecting a group of the upper connection columns and the lower connection columns, the connection components include a connection plate and a plurality of fasteners, the connection plates are respectively connected to the upper connection columns and the lower connection columns, and the plurality of fasteners are respectively passed through and fixed in the connection plates, the upper connection columns and the lower connection columns to connect the upper frame and the lower frame.

2. The elevator shaft steel frame according to claim 1, characterized in that: The upper connecting column comprises: Two groups of first upper side plates, the two groups of the first upper side plates are arranged opposite to each other, and the two groups of the first upper side plates are respectively provided with a plurality of opposite first upper mounting holes; A plurality of first circular tubes are arranged between the two groups of the first upper side plates and are respectively connected to the first upper mounting holes on the two groups of the first upper side plates, and the first circular tubes are arranged along a first direction; Two groups of second upper side plates, the two groups of second upper side plates are arranged opposite to each other and are respectively connected to the two groups of first upper side plates to form a square column, and the two groups of second upper side plates are respectively provided with a plurality of opposite second upper mounting holes; A plurality of second round tubes are arranged between the two groups of the second upper side plates and are respectively connected to the second upper mounting holes on the two groups of the second upper side plates, the second round tubes are arranged along a second direction, and the second direction is perpendicular to the first direction; The first upper mounting hole and the second upper mounting hole are spaced apart in a third direction, and the third direction is perpendicular to the first direction and the second direction.

3. The elevator shaft steel frame according to claim 2, characterized in that: The lower connecting column comprises: Two groups of first lower side plates are arranged opposite to each other, and are respectively arranged corresponding to the two groups of first upper side plates. The two groups of first lower side plates are provided with a plurality of opposite first lower mounting holes. A plurality of third round tubes are arranged between two groups of the first lower side plates and are respectively connected to the first lower mounting holes on the two groups of the first lower side plates, and the third round tubes are arranged along the first direction; Two groups of oppositely arranged second lower side plates are arranged corresponding to the two groups of the second upper side plates and are respectively connected to the two groups of the first lower side plates to form a square column, and the two groups of the second lower side plates are respectively provided with a plurality of opposite second lower mounting holes; A plurality of fourth circular tubes are arranged between two groups of the second lower side plates and are respectively connected to the second lower mounting holes on the two groups of the second lower side plates. The fourth circular tubes are arranged along the second direction, and the first lower mounting holes and the second lower mounting holes are arranged at intervals in the third direction.

4. The elevator shaft steel frame according to claim 3, characterized in that: The connecting plate comprises: Two groups of first connecting plates, the two groups of first connecting plates are arranged opposite to each other, and the first connecting plates are respectively connected to the first upper side plate and the first lower side plate, and the first connecting plates are provided with first through holes matching the first upper mounting holes and the first lower mounting holes; Two groups of second connecting plates, the two groups of second connecting plates are arranged opposite to each other, and the second connecting plates are respectively connected to the second upper side plate and the second lower side plate, and the second connecting plates are provided with second through holes matching the second upper mounting holes and the second lower mounting holes; The fasteners include first fasteners and second fasteners, and a plurality of the first fasteners are respectively disposed in the first through hole and the first upper mounting hole, and in the first through hole and the first lower mounting hole, for connecting the upper frame and the lower frame; A plurality of second fasteners are respectively disposed in the second through hole and the second upper mounting hole, and in the second through hole and the second lower mounting hole, for connecting the upper frame and the lower frame.

5. The elevator shaft steel frame according to claim 4, characterized in that: The fastener is formed as a threaded connection.

6. The elevator shaft steel frame according to claim 5, characterized in that: The first fastener and the second fastener are respectively sleeved with single-ear stop washers.

7. The elevator shaft steel frame according to claim 4, characterized in that: The fastener is provided with a zinc coating.

8. The elevator shaft steel frame according to claim 4, characterized in that: The first connecting plate and the second connecting plate are respectively provided with reinforcing rib plates.

9. The elevator shaft steel frame according to claim 3, characterized in that: A first head plate is disposed at one end of the upper connecting column facing the lower frame, and the first head plate is respectively connected to two groups of the first upper side plates and two groups of the second upper side plates.

10. The elevator shaft steel frame according to claim 9, characterized in that: A second head plate is provided at one end of the lower connecting column facing the upper frame, and the second head plate is respectively connected to two groups of the first lower side plates and two groups of the second lower side plates.