Device convenient for hoisting large indoor equipment in construction stage

By using detachable gate components and lifting hoists in high-rise building construction, the problem of delays in hoisting large indoor equipment was solved, enabling safe and efficient hoisting during the construction phase, reducing costs and improving construction efficiency.

CN121553810APending Publication Date: 2026-02-24CHINA RAILWAY NO 5 ENG GRP BUILDING ENG +1
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Patent Information

Application Number
CN202511908224.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-17
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

In the construction of high-rise buildings, the hoisting of large indoor equipment relies on tower cranes through reserved openings, which leads to delays in the process, time and labor consumption, high costs and insufficient safety.

Method used

Design a device for facilitating the hoisting of large indoor equipment during the construction phase, including installing a detachable gate assembly and a lifting hoist on a steel frame on the outside of the main structure. The gate assembly is vertically lifted and lowered by guide rails and an electric hoist, providing a flexible equipment transportation channel, and safety is ensured by connecting the linkage with the embedded parts.

Benefits of technology

This technology enables the simultaneous hoisting of large indoor equipment with the main structure during the construction phase, shortening the construction period, improving safety, reducing costs, and increasing construction efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a device convenient for hoisting large indoor equipment in a construction stage, and belongs to the technical field of building construction devices. The system comprises a main body structure of the building; a steel frame is arranged on the outer side of the main body structure; a hole for arranging a discharging platform is reserved in the main body structure; a door blocking assembly is detachably installed at the position, corresponding to the hole, of the steel frame. A lifting rope is arranged on the door blocking assembly; a lifting hoist is mounted on the main body structure; one end of the lifting rope is tied to the lifting hoist, and the lifting hoist is used for adjusting the mounting position of the door blocking assembly on the steel frame; the problems that in the prior art, due to the fact that large indoor equipment depends on a tower crane to be hoisted through a reserved hole, working procedures are lagged, time and labor are consumed, cost is high, and safety is insufficient are effectively solved.
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Description

Technical Field

[0001] This invention relates to the field of building construction equipment technology, and specifically to a device that facilitates the hoisting of large indoor equipment during the construction phase. Background Technology

[0002] In high-rise building construction, small items such as windows can be transported using construction elevators, but transporting large indoor equipment such as large sliding doors has always been a challenge. Limited by the size and load-bearing capacity of elevators, traditional methods for transporting large indoor equipment mostly rely on tower cranes. Furthermore, because these large pieces of equipment cannot be hoisted and installed simultaneously during the main structural construction phase, they must be postponed to the finishing stage, hoisted through openings in the building's exterior walls. This method not only involves complex and time-consuming processes and significant coordination difficulties, but also increases the safety risks of working at heights and the rental costs of tower cranes, severely impacting construction efficiency and project economics. Therefore, there is an urgent need for a specialized device that can be integrated into the main structure during the construction phase, facilitating the flexible and safe hoisting of large indoor equipment. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a device that facilitates the hoisting of large indoor equipment during the construction phase, so as to solve the problems of process delay, time-consuming and labor-intensive, high cost and insufficient safety in the prior art that relies on tower cranes to hoist large indoor equipment through reserved openings.

[0004] To address the above problems, the present invention provides the following technical solution:

[0005] A device for facilitating the hoisting of large indoor equipment during the construction phase; it includes the main structure of the building; a steel frame is installed on the outside of the main structure; an opening is provided in the main structure for arranging an unloading platform; a gate assembly is detachably installed on the steel frame at the position corresponding to the opening; a hoisting rope is provided on the gate assembly; a lifting hoist is installed on the main structure; one end of the hoisting rope is tied to the lifting hoist, which is used to adjust the installation position of the gate assembly on the steel frame.

[0006] Preferably, the gate assembly includes a pair of uprights; a hanging plate is provided at the top of each of the two uprights; a hanging hole for connecting a hanging rope is provided on the hanging plate; a connecting rod is provided on the side of the uprights facing the main structure; an openable and closable door panel is provided at the end of the connecting rod; a crossbeam is provided on the lower side of the uprights; and the two uprights are connected by the crossbeam.

[0007] Furthermore, guide rails are installed on the steel frame; the column is a square column structure, and a slot that matches the guide rail is opened on the side end of the column facing the steel frame; both the slot and the guide rail are arranged vertically, and the gate blocking assembly can move along the guide rail.

[0008] Furthermore, each column is equipped with at least two connecting rods; one of the connecting rods is located on the lower side of the column; an embedded part is provided on the floor slab of the main structure; the tail end of the connecting rod can extend into the main structure; a protective rod is provided on the tail end of the connecting rod on the same column; when the gate assembly is installed in place, the connecting rod located on the lower side of the column is detachably connected to the embedded part.

[0009] Furthermore, the connecting rod is composed of two straight rods hinged together at one end; the other ends of the two straight rods are respectively hinged to the column and the door panel; the connecting rod can fold the door panel closer to the column by rotating the two straight rods; a buckle is provided on the crossbeam; the buckle can restrict the movement of the door panel.

[0010] Furthermore, the door panel is a double-leaf swing door structure, with a door lock between the two door panels for controlling its opening and closing.

[0011] Preferably, an I-beam is detachably installed on the floor above the door blocking assembly in the main structure; one end of the I-beam extends toward the steel frame; the lifting hoist is an electric hoist structure and is installed on the extended end of the I-beam.

[0012] The present invention also provides a method of using such a device, which includes the following steps:

[0013] S1. After the main structure is constructed to the target floor and the outer steel frame is erected, install I-beams and lifting hoists at the positions corresponding to the openings on the main structure; align the slots on the uprights of the door blocking assembly with the vertical guide rails on the steel frame.

[0014] S2. Attach the hoist's lifting rope to the hanging plate on top of the door stop assembly; keep the connecting rod on the door stop assembly in a folded and retracted state, and restrict the door panel's movement using the latch; operate the hoist to move the door stop assembly to the required floor height; unfold the connecting rod so that its tail end extends into the main structure, and make the embedded parts on the floor slab detachably connected to the connecting rod; ensure the door panel's lock is closed, thereby sealing the opening at this location.

[0015] S3. When equipment needs to be hoisted, first unlock the door, unfold the door panel of the door blocking assembly to make way for the transport passage; use other lifting equipment to hoist large indoor equipment into the floor through this passage.

[0016] S4. After completing the hoisting of the current floor, close the door panel; disconnect the lower connecting rod from the embedded part; fold the connecting rod toward the upright and then use the buckle to restrict the movement of the door panel; operate the lifting hoist to lift the door blocking assembly upward along the guide rail;

[0017] S5. Lift the door stop assembly and re-fix it in the corresponding position on the previous floor. Repeat steps S2 to S4 to achieve the cyclical use of the device on different floors.

[0018] The beneficial effects of this invention are reflected in the following aspects:

[0019] 1. This invention transforms the traditional static temporary protective facility for openings into a dynamic work platform that integrates a vertical guide lifting system, a rigid anchoring system for the main structure, and a system for quickly opening and closing passage doors. The platform relies on the construction scaffolding, achieves rapid vertical transfer through electric hoists, and achieves reliable connection with the main structure through anchoring rods. Thus, without affecting the main construction, it dynamically provides a safe and ready-to-use interface for transporting large equipment to different floors.

[0020] 2. By installing detachable and adjustable special gate components on the outer steel frame of the building during the construction phase, a readily available transportation channel is created for large indoor equipment, allowing its hoisting and installation to be carried out simultaneously with the main structure construction. This avoids the delays caused by waiting for reserved openings and tower crane coordination in the traditional way, and significantly shortens the construction period.

[0021] 3. The door blocking assembly integrates an openable and closable door panel and a protective bar, which can reliably close the opening when not in hoisting operations to prevent the risk of personnel or materials falling; the setting of guide rails and embedded parts ensures the stability of the assembly during installation and operation, and improves the overall safety of the operation.

[0022] 4. The door blocking assembly can be easily adjusted in installation height using a lifting hoist to meet the hoisting needs of different floors; the hinged design of the connecting rod and the door panel allows the door panel to be folded and stored, saving space and facilitating the entry and exit of equipment; the entire device is detachable, with minimal impact on the main structure and wide applicability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention in an embodiment;

[0024] Figure 2 yes Figure 1 Sectional view along line AA;

[0025] Figure 3 yes Figure 2 A schematic diagram of the upper connecting rod of the gate assembly in the middle device when it is in a retracted and folded state;

[0026] Figure 4 This is a three-dimensional structural schematic diagram of the gate blocking assembly in this embodiment;

[0027] Explanation of reference numerals in the attached drawings: 1. Main structure, 2. Steel frame, 3. Opening, 4. Door stop assembly, 41. Column, 42. Hanging plate, 43. Connecting rod, 44. Door panel, 45. Crossbeam, 46. Door lock, 5. Hoisting rope, 6. Lifting hoist, 7. Guide rail, 8. I-beam. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0029] Example:

[0030] Reference Figure 1 This embodiment provides a device for facilitating the hoisting of large indoor equipment during the construction phase. It includes a main building structure 1; a steel frame 2 is installed on the outer side of the main structure 1; an opening 3 is provided in the main structure 1 for arranging an unloading platform; a door-blocking assembly 4 is detachably installed on the steel frame 2 at a position corresponding to the opening 3; a lifting rope 5 is installed on the door-blocking assembly 4; and a lifting hoist 6 is installed on the main structure 1. One end of the lifting rope 5 is tied to the lifting hoist 6, which is used to adjust the installation position of the door-blocking assembly 4 on the steel frame 2. The core of this device is to combine a temporary protective structure with a hoisting function, utilizing the inherent steel frame on the outer side of the main structure as a load-bearing foundation, and dynamically managing the equipment entry and exit channels through a flexibly lifting and positioning door-blocking assembly, thereby enabling the hoisting of large indoor equipment such as sliding doors before the decoration phase.

[0031] The door blocking assembly 4 includes a pair of columns 41; each column 41 has a hanging plate 42 at its top; the hanging plate 42 has a hook for connecting the suspension rope 5; in this embodiment, the hanging plate 42 is an ear plate component with a through hole; a connecting rod 43 is provided on the side of the column 41 facing the main structure 1; an openable and closable door panel 44 is provided at the end of the connecting rod 43; a crossbeam 45 is provided on the lower side of the column 41; the two columns 41 are connected by the crossbeam 45. The frame structure ensures overall rigidity, the connection point design between the hanging plate and the suspension rope makes the force clear, and the door panel is connected to the column through the connecting rod, which can form a continuous protective surface with the building's exterior wall when closed, and can completely allow passage for equipment when open.

[0032] A guide rail 7 is installed on the steel frame 2; the column 41 is a square column structure, and a slot that mates with the guide rail 7 is opened on the side end of the column 41 facing the steel frame 2; both the slot and the guide rail 7 are arranged vertically, and the gate blocking assembly 4 can move along the guide rail 7. The fit between the guide rail and the slot is a clearance fit, which not only provides guidance for vertical movement and prevents the assembly from swinging during lifting, but also bears part of the vertical load of the gate blocking assembly in the working state, thereby improving the stability and safety of the system.

[0033] Each column 41 is equipped with at least two connecting rods 43; one of the connecting rods 43 is located on the lower side of the column 41; embedded parts are provided on the floor slab of the main structure 1; the tail end of the connecting rod 43 can extend into the main structure 1; a protective rod is provided on the tail end of the connecting rod 43 on the same column 41; the distance between the protective rods and between the protective rod and the door panel does not exceed 20cm; when the door blocking assembly 4 is installed in place, the connecting rod 43 located on the lower side of the column 41 is detachably connected to the embedded part. The embedded part can be an embedded clip for installing the unloading platform, or a positioning part such as an embedded bolt; through the connection between the lower connecting rod and the embedded part on the floor slab, the door blocking assembly obtains horizontal constraints from the main structure, effectively resisting lateral forces such as wind loads. The protective rod at the tail end constitutes a second safety barrier below the opening.

[0034] The connecting rod 43 is composed of two straight steel rods with a diameter of 40mm hinged at both ends; its ends are provided with φ20mm round holes for connection with M18 bolts with ring bolts embedded in the floor slab concrete via cotter pins; the other ends of the two straight rods are respectively hinged to the column 41 and the door panel 44; the connecting rod 43 can fold the door panel 44 closer to the column 41 by rotating the two straight rods; a buckle is provided on the crossbeam 45; the buckle can restrict the movement of the door panel 44. The door panel 44 uses several 40mm×60mm square tubes as a frame, and its surface is covered with a 1.5mm thick steel plate; the door panel 44 is a double-leaf swing door structure, and a door lock 46 is provided between the two door panels 44 to control its opening and closing. The foldable connecting rod component is the key to the door panel achieving both unfolded and retracted states. In a static state, the connecting rod is in a straight position, placing the door panel on the floor slab of the main structure to seal the opening. When it is necessary to ensure the passage is unobstructed to the greatest extent, the door lock on the door panel is opened, allowing the equipment to enter along the passage. When the door panel structure needs to be moved as construction progresses, the connecting rod is folded to make the door panel fit tightly against the column and secured with buckles. Then, the entire door blocking assembly is lifted to the next work position using a hoist.

[0035] An I-beam 8 is detachably installed on the main structure 1 at a floor level above the gate assembly 4. The I-beam is connected and fixed to the embedded parts on the main structure by two sets of M20 high-strength bolts. One end of the I-beam 8 extends towards the steel frame 2. The lifting hoist 6 is an electric hoist structure, and the lifting hoist 6 is installed on the extended end of the I-beam 8. As a cantilever beam, the I-beam provides a stable mounting point for the electric hoist, ensuring that its force point is directly above the gate assembly, resulting in a smooth lifting process. This I-beam can be easily moved and installed on different floors according to the construction progress, realizing the efficient and cyclical use of one lifting mechanism to serve the hoisting needs of multiple floors.

[0036] The operation of this device closely follows the construction schedule of high-rise buildings. After the main structure reaches a certain height and the outer steel frame is erected, the device can be installed at the unloading platform openings on the corresponding floors according to the arrival plan of large equipment such as integrated sliding doors. Its core value lies in transforming the conventional technology of hoisting large equipment, which can only be done by large tower cranes after the main structure is completed, into a distributed and continuous flexible operation that can be carried out along with the construction progress. The door blocking component is not only a safety protection door at the opening position, but also a hoisting interface that can be moved up and down. It allows the equipment to be directly hoisted to the vicinity of the target floor, or even to the installation point, during the most suitable construction window. This greatly reduces intermediate transfer and storage links and waiting time, optimizes the construction flow, and achieves multiple improvements in safety, cost, and schedule.

[0037] This device, guided by guide rails and in conjunction with an electric hoist, requires only two operators to complete the transfer and fixation of the baffle assembly between two floors within 30 minutes. Compared with the traditional method, which requires coordination of tower cranes and a large number of workers for opening modification and protection, the efficiency is expected to be increased by more than 70%.

[0038] When using the device of this embodiment, the following steps can be referred to:

[0039] S1. After the main structure 1 is constructed to the target floor and the outer steel frame 2 is erected, install the I-beam 8 and the lifting hoist 6 at the position corresponding to the opening 3 on the main structure 1; align the slot on the column 41 of the door blocking assembly 4 with and insert it into the vertical guide rail 7 on the steel frame 2.

[0040] S2. Attach the hoisting rope 5 of the lifting hoist 6 to the hanging plate 42 on the top of the door blocking assembly 4; keep the connecting rod 43 on the door blocking assembly 4 in a folded and retracted state, and restrict the movement of the door panel 44 by the buckle; operate the lifting hoist 6 to move the door blocking assembly 4 to the required floor height; unfold the connecting rod 43 so that its tail end extends into the main structure 1, and make the embedded part on the floor slab detachably connected to the connecting rod 43; ensure that the door lock of the door panel 44 is closed, thereby sealing the opening here;

[0041] S3. When equipment hoisting is required, first unlock the door, unfold the door panel 44 of the door blocking assembly 4 to make way for the transport passage; use other lifting equipment to hoist large indoor equipment into the floor through this passage.

[0042] S4. After completing the hoisting of the current floor, close the door panel 44; disconnect the lower connecting rod 43 from the embedded part; fold the connecting rod toward the upright and then use the buckle to restrict the movement of the door panel; operate the lifting hoist 6 to lift the door blocking assembly 4 upward along the guide rail 7.

[0043] S5. Lift the door blocking assembly 4 and re-fix it in the corresponding position on the upper floor. Repeat steps S2 to S4 to realize the cyclical use of the device on different floors.

Claims

1. A device for facilitating the hoisting of large indoor equipment during the construction phase, comprising a main building structure (1); a steel frame (2) provided on the outside of the main building structure (1); and an opening (3) provided on the main building structure (1) for arranging an unloading platform; characterized in that: A gate assembly (4) is detachably installed on the steel frame (2) at the position corresponding to the opening (3); a hoisting rope (5) is provided on the gate assembly (4); a lifting hoist (6) is installed on the main structure (1); one end of the hoisting rope (5) is tied to the lifting hoist (6), and the lifting hoist (6) is used to adjust the installation position of the gate assembly (4) on the steel frame (2).

2. The device for facilitating the hoisting of large indoor equipment during the construction phase, as described in claim 1, is characterized in that: The door blocking assembly (4) includes a pair of uprights (41); a hanging plate (42) is provided on the top of each of the two uprights (41); a hanging hole for connecting the hanging rope (5) is provided on the hanging plate (42); a connecting rod (43) is provided on the side of the upright (41) facing the main structure (1); an openable and closable door panel (44) is provided on the end side of the connecting rod (43); a crossbeam (45) is provided on the lower side of the uprights (41); the two uprights (41) are connected by the crossbeam (45).

3. The device for facilitating the hoisting of large indoor equipment during the construction phase, as described in claim 2, is characterized in that: A guide rail (7) is provided on the steel frame (2); the column (41) is a square column structure, and a slot that matches the guide rail (7) is opened on the side end face of the column (41) facing the steel frame (2); the slot and the guide rail (7) are both arranged vertically, and the door blocking assembly (4) can move along the guide rail (7).

4. The device for facilitating the hoisting of large indoor equipment during the construction phase, as described in claim 2, is characterized in that: Each column (41) is equipped with at least two connecting rods (43); one of the connecting rods (43) is located on the lower side of the column (41); an embedded part is provided on the floor slab of the main structure (1); the tail end of the connecting rod (43) can be inserted into the main structure (1); a protective rod is provided on the tail end of the connecting rod (43) on the same column (41); when the gate assembly (4) is installed in place, the connecting rod (43) located on the lower side of the column (41) is detachably connected to the embedded part.

5. The device for facilitating the hoisting of large indoor equipment during the construction phase, as described in claim 2, is characterized in that: The connecting rod (43) is made up of two straight rods hinged together at one end; the other ends of the two straight rods are respectively hinged to the column (41) and the door panel (44); the connecting rod (43) can fold the door panel (44) by rotating the two straight rods to bring it closer to the column (41); a buckle is provided on the crossbeam (45); the buckle can restrict the movement of the door panel (44).

6. The device for facilitating the hoisting of large indoor equipment during the construction phase, as described in claim 2, is characterized in that: The door panel (44) is a double-leaf swing door structure, and a door lock (46) is provided between the two door panels (44) to control its opening and closing.

7. The device for facilitating the hoisting of large indoor equipment during the construction phase, as described in claim 1, is characterized in that: An I-beam (8) is detachably installed on the floor above the door assembly (4) on the main structure (1); one end of the I-beam (8) extends toward the steel frame (2); the lifting hoist (6) is an electric hoist structure and is installed on the extended end of the I-beam (8).

8. A method of using the device for facilitating the hoisting of large indoor equipment during the construction phase, as described in any one of claims 1 to 7, characterized in that: Includes the following steps: S1. After the main structure (1) is constructed to the target floor and the outer steel frame (2) is erected, install the I-beam (8) and the lifting hoist (6) at the position corresponding to the opening (3) on the main structure (1); align the slot on the column (41) of the door blocking assembly (4) with and insert it into the vertical guide rail (7) on the steel frame (2). S2. Attach the hoisting rope (5) of the lifting hoist (6) to the hanging plate (42) on the top of the door blocking assembly (4); keep the connecting rod (43) on the door blocking assembly (4) in a folded and retracted state, and restrict the movement of the door panel (44) by the buckle; operate the lifting hoist (6) to move the door blocking assembly (4) to the required floor height; unfold the connecting rod (43) so that its tail end extends into the main structure (1), and make the embedded part on the floor slab detachably connected to the connecting rod (43); ensure that the door lock of the door panel (44) is closed, thereby sealing the opening here; S3. Hoisting operation: When equipment hoisting is required, first unlock the door, unfold the door panel (44) of the door blocking assembly (4) to make way for the transport channel; use other lifting equipment to hoist large indoor equipment to the floor through this channel; S4. Conversion and Lifting: After completing the hoisting of the current floor, close the door panel (44); disconnect the lower connecting rod (43) from the embedded part; fold the connecting rod toward the upright and then use the buckle to restrict the movement of the door panel; operate the hoist (6) to lift the door blocking assembly (4) upward along the guide rail (7); S5. Recycling: Lift the door stop assembly (4) and re-fix it in the corresponding position on the next floor, repeat steps S2 to S4, and realize the recycling of the device on different floors.