Steel structure elevator shaft field construction device

Abstract

The application discloses a kind of steel structure elevator shaft field construction device, belong to a kind of elevator construction device, including attachment frame body and lifting power device, lifting power device is installed on column body, lifting power device is connected with the lifting point power of attachment frame body by lifting rope, attachment frame body is closely contacted with the facade of column body by multiple friction wheels, pull hook power connection is also installed on attachment frame body by pull lifting power device, pull lifting power device is connected with lifting hook by pull lifting rope;Pull hook power device is used to pull the assembly unit of steel structure elevator shaft to construction position by pull lifting rope, by designing attachment frame body around the column of shaft, so that four columns have construction position on the same plane, in turn, simultaneous construction can be carried out, effectively improve the construction efficiency of elevator shaft, and the column body can be used as support and guide rail, the assembly unit of shaft is pulled to the corresponding area by pull lifting power device, in turn, construction site does not need to use additional crane.

Description

Technical Field

[0001] This invention relates to an elevator construction device, and more specifically, to a steel structure elevator shaft on-site construction device. Background Technology

[0002] With the gradual advancement of national urban renewal projects, more and more old residential communities are installing elevators. Due to design issues in these older buildings, elevators can only be installed externally, requiring the design of independent support shafts. These shafts are typically assembled in factory units and then transported to the site for unified installation. The current installation method involves using cranes or other lifting equipment to lift the assembled units to the corresponding areas on-site, followed by manual installation. Since the shaft has four columns, each assembled unit must be lifted to its corresponding area for installation, making precision control difficult and requiring a high level of technical skill from the construction workers. Furthermore, only one column can be installed at a time, which can easily affect the construction progress of the steel structure elevator shaft. Therefore, it is necessary to research and improve the auxiliary devices for the construction of such steel structure elevator shafts. Summary of the Invention

[0003] One of the objectives of this invention is to address the aforementioned shortcomings by providing a construction device for steel structure elevator shafts on-site, which aims to solve the technical problems of existing construction methods for similar steel structure elevator shafts, such as difficulty in precision control, excessive reliance on the technical level of construction personnel, and low construction efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention provides an on-site construction device for steel structure elevator shafts, including an attachment frame and a lifting power device. The attachment frame is installed on the column of the steel structure elevator, and the lifting power device is also installed on the column, thereby driving the attachment frame to move up and down along the column. The lifting power device is poweredly connected to the lifting points on the attachment frame via a lifting rope. The attachment frame is in close contact with the vertical surface of the column via multiple friction wheels. A traction power device is also installed on the attachment frame, and the traction power device is connected to the lifting point via a traction rope. The hook is connected to a power source; the lifting power device is used to lift the assembly unit of the steel structure elevator shaft to the construction position via a lifting rope; a braking device is installed on the attachment frame, the braking device includes a brake rod, the brake rod is mounted on the bracket via a rotating shaft, and the end of the brake rod is provided with a friction plate, the friction plate is used to make close contact with the vertical surface of the column to form a brake, so that the attachment frame can stay at any position in the longitudinal direction of the column; a walkway plate is installed at the bottom of the attachment frame, and the walkway plate surrounds all construction positions on the inner or outer side of the attachment frame.

[0006] As a preferred embodiment, a further technical solution is: multiple buffer support columns are provided below the walkway slab, the lower ends of the buffer support columns are on the same horizontal plane, and spring bodies are installed on the buffer support columns; guardrails are installed on the walkway slab.

[0007] A further technical solution is that the lifting power device is an electric hoist with a power-off locking function, and the brake lever is also connected to the control module of the electric hoist through a circuit breaker. The control module is used to disconnect the power supply of the electric hoist under the action of the brake lever.

[0008] A further technical solution is as follows: the attachment frame has four construction positions, which correspond to the positions of the four columns of the steel structure elevator shaft. Each construction position is equipped with its own lifting power device and hoisting power device. A balancing device is also installed between the four lifting power devices. The balancing device is used to determine whether the four lifting power devices are currently on the same horizontal plane. The control module is also used to control the start and stop of multiple lifting power devices and hoisting power devices in a unified or separate manner.

[0009] A further technical solution is that the hoisting rope is any one of steel wire rope, single chain, or ring chain, and the lifting rope is any one of steel wire rope, single chain, or ring chain.

[0010] A further technical solution is: the friction wheel is installed on the horizontal linkage frame of the attachment frame, the horizontal linkage frame has multiple layers and is located inside the column, and each layer of the horizontal linkage frame is equipped with an equal number of friction wheels.

[0011] A further technical solution is: the attachment frame is also provided with a longitudinal linkage frame, the longitudinal linkage frame is placed on the outside of the column, and multiple friction wheels are longitudinally installed on the longitudinal linkage frame.

[0012] A further technical solution is that a protective frame is provided on the inner or outer side of the attachment frame, and the protective frame is used to limit the lifting stroke of the assembly unit of the steel structure elevator shaft.

[0013] Another aspect of the present invention provides a construction method for a steel structure elevator shaft. The method uses the aforementioned on-site construction device for a steel structure elevator shaft and includes the following steps:

[0014] Step A: Fix the column splicing components to the bottom layer of the installation site to form four columns arranged in a rectangular array. Then, install the attachment frame around the outside of the four columns and form four construction positions on the steel structure elevator shaft with the four columns as the reference.

[0015] Step B: Install walkway panels on the attachment frame.

[0016] Step C: Install a lifting power device on the column and connect the lifting power device to the attachment frame. Then install a brake rod between the attachment frame and the column.

[0017] Step D: Install the hoisting power device on the attachment frame.

[0018] Step E: Install the fixed column splicing components upward at the construction position to extend the four columns upward. At the same time, install the crossbeam splicing components between two adjacent columns to form the shaft crossbeam. The column splicing components and crossbeam splicing components are lifted from the inside or outside of the steel structure elevator shaft formed by the columns to the construction position by the lifting power device.

[0019] Step F: After the construction of the column and beam at the current position is completed, the lifting power device will lift the attachment frame along the longitudinal direction of the column to the next height. Continue to install the column splicing parts and beam splicing parts at the construction position. During the construction process, when the braking device is activated, the power supply of the lifting power device will be disconnected and locked at the current position.

[0020] Step G: After the steel structure elevator shaft is completed, the attachment frame is lowered longitudinally along the column to the bottom of the installation site by the lifting power device.

[0021] As a preferred option, a further technical solution is as follows: after the steel structure elevator shaft is constructed, during the process of lowering the attachment frame to the bottom of the installation site using a lifting power device, decorative panels are installed layer by layer on the outside of the steel structure elevator shaft from top to bottom, and the decorative panels are fixed to the outside of the columns and the crossbeams.

[0022] Compared with the prior art, one of the beneficial effects of this invention is that by designing an attachment frame that surrounds the shaft columns, all four columns have construction positions on the same plane, allowing for simultaneous construction and effectively improving the construction efficiency of the elevator shaft. Furthermore, the columns can be used as supports and guide rails to lift the shaft assembly units to the corresponding areas using a traction power device, eliminating the need for additional cranes on-site. Under the action of the lifting power device, the attachment frame can be raised and lowered as a whole, always remaining flush with the horizontal plane, thus improving the flatness of the elevator shaft construction, preventing tilting during assembly unit installation, and making it easier to control the precision of elevator shaft construction. This results in high construction consistency and eliminates reliance on the individual skill level of construction personnel. Moreover, by surrounding all construction positions of the attachment frame with walkway panels, construction safety is also effectively improved. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating a structural aspect of an embodiment of the present invention.

[0024] Figure 2 for Figure 1 A schematic diagram of the structure in the first orientation.

[0025] Figure 3 for Figure 1 The second-direction structural diagram.

[0026] Figure 4 for Figure 1 The first enlarged view of the area.

[0027] Figure 5 for Figure 1 The second enlarged view of the area.

[0028] Figure 6 for Figure 1 The third enlarged view.

[0029] Figure 7 for Figure 1 The fourth enlarged view.

[0030] In the diagram, 1 is the attachment frame, 2 is the lifting power device, 21 is the lifting rope, 3 is the column, 4 is the friction wheel, 5 is the hoisting power device, 51 is the hoisting rope, 6 is the brake lever, 7 is the bracket, 8 is the friction plate, 9 is the walkway slab, 91 is the guardrail, 10 is the buffer support column, 11 is the horizontal linkage frame, 12 is the longitudinal linkage frame, 13 is the protective frame, 14 is the crossbeam, and 20 is the construction position. Detailed Implementation

[0031] The invention will now be further described with reference to the accompanying drawings.

[0032] refer to Figure 1 As shown, one embodiment of the present invention is a construction device for a steel structure elevator shaft. This device uses the columns of the steel structure elevator shaft as supports, similar to the scaffolding principle of building exterior walls, to construct the elevator shaft. According to relevant national standards, the fixing positions of multiple column splicing components in the shaft cannot be on the same horizontal plane; they need to be staggered. However, on the same horizontal plane, at least one column splicing position needs to be fixed, and in some cases, two or even more column splicing positions may occur. Therefore, the device structure of the present invention can be broadly divided into an attachment frame 1 and a lifting power device 2. Generally, during construction, the basic components of the elevator shaft are erected in the construction area, and before continuing upward construction, the construction device of this embodiment is installed around the shaft. In the structure of the construction device, the attachment frame 1 is installed on the columns 3 of the steel structure elevator during use, combined with... Figure 4As shown, the lifting power device 2 is also used to install on the column 3, thereby driving the attachment frame 1 to move up and down along the column 3; that is, the lifting power device 2 uses the already constructed shaft section as the support point, and is poweredly connected to the lifting point on the attachment frame 1 through the lifting rope 21; thereby pulling upward to drive the attachment frame 1 to rise or fall vertically.

[0033] Combination Figure 5 As shown, to ensure the stability of the attachment frame 1 during the lifting and lowering of the lifting power device 2, multiple friction wheels 4 can be used to maintain close contact with the vertical surface of the column 3; that is, during the lifting or lowering of the attachment frame 1, the aforementioned multiple friction wheels 4 roll on the vertical surface of the column 3, thereby preventing the attachment frame 1 from swaying and displacing. Furthermore, in addition to the lifting power device, the construction equipment also needs to be equipped with a hoisting device, combined with... Figure 6 As shown, the function of this hoisting device is to hoist the column and beam splicing components required for constructing the elevator shaft to the required location, thereby replacing the external crane used in the existing construction method. Therefore, a hoisting power device 5 can be installed on the aforementioned attachment frame 1. The hoisting power device 5 is poweredly connected to the hoisting hook via a hoisting rope 51. The hoisting power device 5 is used to hoist the assembly units such as the column and beam splicing components of the steel structure elevator shaft to the construction position via the hoisting rope 51.

[0034] In this embodiment, considering the safety of the attachment frame 1 during its ascent and descent, and combining... Figure 7 As shown, a braking device is installed on the aforementioned attachment frame 1. The function of this braking device is to allow construction personnel to manually stop the upward and downward movement of the attachment frame 1, so that the attachment frame 1 can stop at any position on the current column 3 facade. The preferred structure of this braking device is to design a brake rod 6, which is mounted on the bracket 7 via a rotating shaft. The end of the brake rod 6 is provided with a friction plate 8, which can be made of rubber or other materials that can generate greater friction. The friction plate 8 is used to make close contact with the facade of the column 3 to form a brake, so that the attachment frame 1 can stop at any position in the longitudinal direction of the column 3 as described above.

[0035] To facilitate construction work, similar to the scaffolding used in ordinary buildings, a walkway 9 is installed at the bottom of the aforementioned attached frame 1. This walkway 9 surrounds all construction positions on the inner or outer side of the attached frame 1. Preferably, since ordinary steel structure elevator shafts typically have four columns, this is combined with... Figure 2As shown, there are four construction positions on the attachment frame 1 installed around the shaft, which correspond to the positions of the four columns 3 of the steel structure elevator shaft. Each construction position is equipped with its own lifting power device 2 and hoisting power device 5. For the convenience of those skilled in the art, the above description of the device is based on the structure of the device located at one construction position. It should be understood that in actual application, the construction positions corresponding to the four columns have the same structure as described above. Furthermore, to ensure that the lifting power devices 2 at the four construction positions can rise or fall synchronously, a balancing device can be installed between the four lifting power devices 2. This balancing device can be an infrared module or a level, etc., and its function is to determine whether the four lifting power devices 2 are currently on the same horizontal plane. The lifting power devices at the four construction positions can be controlled by a control module to control the start and stop of multiple lifting power devices 2 and the hoisting power device 5, either uniformly or separately. That is, when the balancing device indicates that the positions of the four lifting power devices 2 are not on the same horizontal plane, the operator can control the real-time position of the corresponding lifting power device 2 together or individually through the control module to eliminate the height difference that causes imbalance on the attached frame.

[0036] In this embodiment, by designing an attachment frame 1 surrounding the shaft columns, all four columns have construction positions on the same plane, allowing for simultaneous construction and effectively improving the construction efficiency of the elevator shaft. Furthermore, the columns 3 can be used as supports and guide rails to lift the shaft assembly units to the corresponding areas using a traction power device, eliminating the need for additional cranes on-site. Under the action of the lifting power device 2, the attachment frame 1 can be lifted as a whole and always remain flush with the horizontal plane, thereby improving the flatness of the elevator shaft construction and preventing tilting during the installation of the assembly units.

[0037] According to another embodiment of the present invention, the inventors use an electric hoist with a power-off locking function as the aforementioned lifting power device 2. This allows the hoist to lock itself in its current position after a power outage, preventing further descent. Such electric hoists are readily available on the market, so their structure and operating principle will not be described in detail. Furthermore, to be used in conjunction with the aforementioned brake lever, the brake lever 6 can be connected to the electric hoist's control module via a circuit breaker. This control module can disconnect the power supply to the electric hoist when triggered by the brake lever 6, thereby simultaneously disconnecting and locking the power supply to all four electric hoists.

[0038] As mentioned above, the inventors discovered in their experiments that if the attachment frame 1 falls during use, the probability of this happening is low unless all four electric hoists are damaged. Therefore, even if a fall does occur, it will likely occur at a lower position. Figure 3As shown, in this embodiment, the inventors added multiple buffer support columns 10 below the walkway 9. The lower ends of the buffer support columns 10 are placed on the same horizontal plane, and spring bodies are installed on the buffer support columns 10 to enhance their buffering effect. In addition, to ensure the safety of construction workers during construction on the walkway 9, guardrails 91 can also be installed on the walkway 9.

[0039] Furthermore, both the lifting power device 2 and the hoisting power device 5 mentioned above can be electric hoists of corresponding specifications, while the hoisting rope 51 and the lifting rope 21 can be arbitrarily selected from wire rope, single chain, and ring chain according to the actual working conditions. (See also...) Figure 1 As shown, more preferably, a protective frame 13 is provided on the inner or outer side of the attachment frame 1. The protective frame 13 can limit the lifting stroke of the assembly unit and prevent excessive swinging of the column splice or beam splice during the lifting process.

[0040] To increase the stability of the attachment frame 1 during ascent and descent, the inventors further improved the mounting position of the friction wheel 4. Specifically, a transverse linkage frame 11 was added to the attachment frame 1, and the friction wheel 4 was then mounted on this transverse linkage frame 11, as shown in the diagram. Figure 5 As shown, the transverse linkage frame 11 in this embodiment has multiple layers and is located inside the column 3. Each layer of the transverse linkage frame 11 is equipped with an equal number of friction wheels 4. Correspondingly, a longitudinal linkage frame 12 can also be added to the attachment frame 1 and placed outside the column 3. Then, multiple friction wheels 4 are longitudinally installed on the longitudinal linkage frame 12. Furthermore, by ensuring close contact between the inner and outer friction wheels 4, the stability of the attachment frame 1 when rising or falling with the column 3 as the guide rail is further improved.

[0041] As described in the above embodiments, this invention draws on the scaffolding used in existing building construction. Since steel structure elevators are a type of elevator that has emerged in recent years for the renovation of old buildings or low-rise buildings, unlike conventional high-rise buildings, they require the independent construction of elevator shafts for installing elevator cars and traction power devices. Therefore, how to simplify the on-site construction methods of elevator shafts and improve construction efficiency will be one of the important directions in the research process of this type of elevator. This invention, through a brand-new device design, changes the traditional construction work position of elevator shaft construction from one to four directions for simultaneous construction. This not only improves construction efficiency but also ensures the accuracy of the installation of columns and beams between columns, and the construction consistency is high. It no longer depends on the individual technical level of construction workers. By wrapping the walkway around all construction positions of the attached frame, the safety of construction is effectively improved compared to the traditional steel structure elevator shaft construction method that requires construction workers to climb up and down in the shaft.

[0042] Based on the above-described construction device structure, another embodiment of the present invention is a construction method for a steel structure elevator shaft. Using the steel structure elevator shaft on-site construction device described in the above embodiment, the following steps can generally be followed:

[0043] S11. Fix the column splicing parts to the bottom layer of the installation site to form four columns 3 arranged in a rectangular array, thus completing the construction of the support foundation used for the device.

[0044] S12. The various components of the attachment frame 1 are installed around the outside of the four columns 3, and four construction positions are formed on the steel structure elevator shaft with the four columns 3 as the reference.

[0045] S13. Install walkway 9 on the attachment frame 1; install lifting power device 2 on the column 3, and connect the lifting power device 2 to the attachment frame 1; and install brake rod 6 between the attachment frame 1 and the column 3.

[0046] S14. Install the hoisting power device 5 on the attachment frame 1.

[0047] Thus, the on-site construction device for the steel structure elevator shaft as described in the above embodiment is completed, and the next step is to carry out the construction of the steel structure elevator shaft.

[0048] S21. Install and fix the column splicing components upwards at the construction position of the attached frame 1, so that the four columns 3 extend upwards. Generally, the splicing positions of each column are not on the same horizontal plane. At the same time, install the crossbeam splicing components between two adjacent columns 3 to form the shaft crossbeam to ensure the stability of the shaft construction. The column splicing components and crossbeam splicing components are hoisted to the construction position from the inside or outside of the steel structure elevator shaft formed by the columns 3 by the hoisting power device 5, and then fixed manually with bolts or other methods to complete the construction.

[0049] S22. After the construction of the column 3 and the beam at the current position is completed, the lifting power device 2 will lift the attachment frame 1 along the longitudinal direction of the column 3 to the next height, and continue to repeat step S21 to install the column splicing parts and the beam splicing parts at the corresponding construction positions.

[0050] During construction, when the brake lever is manually pulled down and the device is started, the power supply to the lifting power unit 2 is disconnected and locked to the current position.

[0051] S23. After the steel structure elevator shaft is completed, the attachment frame 1 is driven to descend longitudinally along the column 3 to the bottom of the installation site by the lifting power device 2.

[0052] During this process, after the steel structure elevator shaft is completed, the attachment frame 1 is lowered to the bottom of the installation site by the lifting power device 2. Decorative panels are installed layer by layer on the outside of the steel structure elevator shaft from top to bottom. The decorative panels are fixed to the outside of the column 3 and the crossbeam.

[0053] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0054] Although the invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter arrangement within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A steel structure elevator shaft field construction device, characterized by: It includes an attachment frame (1) and a lifting power device (2). The attachment frame (1) is used to be installed on the column (3) of the steel structure elevator, and the lifting power device (2) is also used to be installed on the column (3), thereby driving the attachment frame (1) to move up and down along the column (3). The lifting power device (2) is poweredly connected to the suspension point on the attachment frame (1) via a lifting rope (21); The attachment frame (1) is in close contact with the vertical surface of the column (3) through multiple friction wheels (4); The attachment frame (1) is also equipped with a hoisting power device (5), which is connected to the hoisting hook via a hoisting rope (51). The hoisting power device (5) is used to hoist the assembly unit of the steel structure elevator shaft to the construction position via the hoisting rope (51). A braking device is installed on the attachment frame (1). The braking device includes a brake rod (6). The brake rod (6) is mounted on the bracket (7) via a rotating shaft. The end of the brake rod (6) is provided with a friction plate (8). The friction plate (8) is used to make close contact with the vertical surface of the column (3) to form a brake, so that the attachment frame (1) can stay at any position in the longitudinal direction of the column (3). The bottom of the attachment frame (1) is equipped with a walkway plate (9), which surrounds all construction positions on the inner or outer side of the attachment frame (1).

2. The steel structure elevator shaft field construction apparatus according to claim 1, characterized by: Multiple buffer support columns (10) are provided below the walkway slab (9). The lower ends of the buffer support columns (10) are on the same horizontal plane, and spring bodies are installed on the buffer support columns (10). Guardrails (91) are installed on the walkway slab (9).

3. The steel structure elevator shaft field construction apparatus according to claim 1, characterized by: The lifting power device (2) is an electric hoist with a power-off lock function. The brake lever (6) is also connected to the control module of the electric hoist through a circuit breaker. The control module is used to disconnect the power supply of the electric hoist under the action of the brake lever (6).

4. The steel structure elevator shaft field construction apparatus according to claim 3, characterized by: The attachment frame (1) has four construction positions, which correspond to the positions of the four columns (3) of the steel structure elevator shaft. Each construction position is equipped with its own lifting power device (2) and rigging power device (5). A balancing device is also installed between the four lifting power devices (2). The balancing device is used to determine whether the four lifting power devices (2) are currently on the same horizontal plane. The control module is also used to control the start and stop of multiple lifting power devices (2) and rigging power devices (5) in a unified or separate manner.

5. The steel structure elevator shaft field construction apparatus according to claim 1, characterized by: The hoisting rope (51) is any one of wire rope, single chain, and ring chain, and the lifting rope (21) is any one of wire rope, single chain, and ring chain.

6. The steel structure elevator shaft field construction apparatus according to claim 1, characterized by: The friction wheel (4) is installed on the transverse linkage frame (11) of the attachment frame (1). The transverse linkage frame (11) has multiple layers and is located inside the column (3). Each layer of the transverse linkage frame (11) is equipped with an equal number of friction wheels (4).

7. The steel structure elevator shaft field construction apparatus according to claim 1, characterized by: The attachment frame (1) is also provided with a longitudinal linkage frame (12), which is located on the outside of the column (3). Multiple friction wheels (4) are longitudinally installed on the longitudinal linkage frame (12).

8. The steel structure elevator shaft field construction apparatus according to claim 1 or 7, characterized by: The inner or outer side of the attachment frame (1) is provided with a protective frame (13), which is used to limit the lifting stroke of the assembly unit of the steel structure elevator shaft.

9. A construction method of a steel structure elevator shaft, characterized by The method using the on-site construction device for steel structure elevator shafts according to any one of claims 1 to 8 includes the following steps: The column splicing parts are fixed at the bottom of the installation site to form four columns (3) in a rectangular array. Then the attachment frame (1) is installed around the outside of the four columns (3) and four construction positions are formed on the steel structure elevator shaft with the four columns (3) as the reference. Install walkway panels (9) on the attachment frame (1); A lifting power device (2) is installed on the column (3), and the lifting power device (2) is connected to the attachment frame (1). A brake rod (6) is then installed between the attachment frame (1) and the column (3). Install a lifting power device (5) on the attachment frame (1); At the construction location, install fixed column splicing components upwards to extend the four columns (3) upwards. At the same time, install crossbeam splicing components between two adjacent columns (3) to form a shaft crossbeam. The column splicing components and crossbeam splicing components are lifted from the inside or outside of the steel structure elevator shaft formed by the column (3) to the construction location by the lifting power device (5). After the construction of the column (3) and beam at the current position is completed, the lifting power device (2) will lift the attached frame (1) along the longitudinal direction of the column (3) to the next height. Then, the column splicing parts and beam splicing parts will continue to be installed at the construction position. During the construction process, when the braking device is activated, the power supply of the lifting power device (2) will be disconnected and locked to the current position. After the steel structure elevator shaft is completed, the attachment frame (1) is driven to descend longitudinally along the column (3) to the bottom of the installation site by the lifting power device (2).

10. The construction method of a steel structure elevator shaft according to claim 9, characterized in that: After the steel structure elevator shaft is completed, the attachment frame (1) is lowered to the bottom of the installation site by the lifting power device (2). Decorative panels are installed layer by layer on the outside of the steel structure elevator shaft from top to bottom. The decorative panels are fixed to the outside of the column (3) and the crossbeam.

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