An elevator shaft self-inverting work platform

Abstract

The utility model discloses an elevator shaft self-overturning type operation platform relates to building construction auxiliary equipment technical field, solves the platform installation stability of prior art is insufficient, sets up the hidden danger of safety is bigger, and the installation and the inconvenient problem of use in the field. The utility model discloses two parallel corresponding setting right triangle frame, two right triangle frame are connected through connecting rod between, be provided with the limit rod on the right triangle frame, and the lower end of right triangle frame is all hinged with support rod, and support rod cooperates with limit rod, and limit rod can limit the rotation angle of support rod, be provided with telescopic push rod for and elevator shaft inner wall cooperation on the right triangle frame. Through the support rod lap joint on the floor, form the stable support base to whole operation platform, through telescopic push rod and elevator well wall cooperation, provide powerful lateral support force, ensure that platform and well wall closely adhere to, effectively prevent the shaking and displacement, provide stable work environment for construction personnel.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment technology for building construction, and in particular to a self-turning operating platform for elevator shafts. Background Technology

[0002] In modern construction engineering, elevator shaft construction and maintenance are crucial aspects. Traditional elevator shaft construction often uses steel pipe scaffolding to erect operating platforms, but this method has many drawbacks. On the one hand, the erection and dismantling process is cumbersome, requiring a large amount of manpower and time, resulting in low construction efficiency and failing to meet the requirements of efficient operation in modern construction. On the other hand, workers face significant safety risks when erecting and dismantling scaffolding at heights, with falls and collapses being frequent accidents.

[0003] Chinese invention patent CN102312562B discloses an elevator shaft construction support platform and its construction method. The platform includes a rectangular frame surrounded by four borders. Steel plates are laid on the frame, with a manhole and movable cover plate in the center. At least two vertical support columns are perpendicular to the platform frame on one border. Two diagonal support columns are perpendicular to the frame on the opposite border. A manhole board is welded between the diagonal supports. The lower ends of the two diagonal support columns connect to the lower ends of the two vertical support columns to form a right-angled triangular support. Right-angled support feet are provided at the lower ends of the two vertical support columns. This invention changes the traditional double-row scaffolding method used in elevator shaft construction, saving costs compared to double-row scaffolding.

[0004] However, this solution relies on the right-angled support feet to cooperate with the floor slab at the elevator shaft to form support, and its length is limited to 2-3 centimeters. On the one hand, the contact area is too small and the support reliability is poor. On the other hand, during installation, when the right-angled support frame is lowered or moved along the elevator shaft, it is easy to cause interference and collision with the shaft wall.

[0005] Most existing platform fixing methods are rudimentary, relying solely on simple supports and fixation to the shaft wall. They are poorly adaptable to different shaft sizes, cannot stably accommodate dimensional deviations, and cannot eliminate gaps between the platform and the shaft. Therefore, there is a risk of unstable fixing, which can easily cause shaking and displacement during construction, threatening worker safety.

[0006] In summary, existing elevator shaft operating platforms have significant shortcomings in terms of construction efficiency, safety, and stability, making it difficult to meet the needs of modern building construction. There is an urgent need to develop a new type of operating platform that is easy to install, securely fixed, and safe and reliable. Utility Model Content

[0007] To address the shortcomings in the aforementioned background technology, this utility model proposes a self-tilting operating platform for elevator shafts, which solves the problems of insufficient platform installation stability, significant safety hazards during erection, and inconvenience in installation and relocation in the prior art.

[0008] The technical solution of this utility model is implemented as follows: A self-tilting operating platform for elevator shafts includes two parallel and corresponding right-angled triangular frames connected by a connecting rod; each right-angled triangular frame is provided with a limiting rod, and each right-angled triangular frame is hinged to a support rod at its lower end, the support rod cooperating with the limiting rod, and the limiting rod can limit the rotation angle of the support rod; each right-angled triangular frame is provided with a telescopic push rod for cooperating with the inner wall of the elevator shaft, the telescopic push rod effectively preventing shaking and displacement during construction, and improving construction safety.

[0009] Preferably, the right-angled triangular frame includes vertically arranged uprights and horizontally arranged crossbars. One end of the upright and one end of the crossbar are fixedly connected, and the other end of the upright and the other end of the crossbar are connected by diagonal braces to form a stable triangular structure, which enhances the overall strength and stability of the operating platform and ensures that it can withstand various loads generated during construction.

[0010] Preferably, an operating platform is fixedly connected to the crossbars of the two right-angled triangular frames. Lifting rings are fixedly installed on the crossbars or operating platform for connecting lifting equipment, enabling rapid lifting and movement of the platform. This greatly facilitates platform relocation and installation, and improves construction efficiency.

[0011] Preferably, the uprights and crossbars are connected by reinforcing bars, and the uprights, crossbars, and diagonal bars are all made of channel steel; the connecting rods and reinforcing bars are all made of steel bars, which gives the entire platform good load-bearing capacity and durability.

[0012] Preferably, the limiting rod is a channel steel, which is horizontally fixed on one side of the upright. A rotating shaft is fixedly installed on the side wall of the upright, and the support rod is rotatably engaged with the rotating shaft. The limiting rod can limit the support rod to a position that is perpendicular to the upright, preventing the outer end of the support rod from flipping upward.

[0013] Preferably, the telescopic push rod includes an L-shaped support rod, a fixing ring is welded and fixed on the crossbar, the L-shaped support rod passes through the fixing ring, and the rear end of the L-shaped support rod cooperates with the lifting ring.

[0014] Preferably, the front end of the L-shaped support rod engages with an opening in the inner wall of the elevator shaft to achieve precise positioning and fixation, effectively preventing the platform from shaking and shifting during construction.

[0015] Preferably, the front end of the L-shaped support rod is provided with a baffle for engaging with the inner wall of the elevator shaft. An operating platform is fixedly mounted on top of the two right-angled triangular frames, providing a spacious and stable working area for construction personnel, ensuring the convenience and safety of construction operations.

[0016] The beneficial effects of this utility model are as follows: Compared with traditional scaffolding, this platform reduces high-altitude erection and dismantling operations, lowering the risk of falls and collapses. Simultaneously, the stable support structure and reliable fixing method effectively prevent platform overturning accidents, ensuring the safety of construction workers. By hinged support rods at the lower end of the right-angled triangular frame and using limiting rods to restrict the rotation angle of the support rods, the support rods are placed on the floor slab at the elevator shaft. The support rods and limiting rods work together to form a stable support foundation for the entire operating platform. A telescopic push rod at the top, in conjunction with the elevator shaft wall, provides strong lateral support, ensuring a tight fit between the platform and the shaft wall, effectively preventing swaying and displacement, and providing a stable working environment for construction workers. Furthermore, the method of erecting the platform by rotating the support rods improves the convenience of installation and dismantling, providing a more reliable, convenient, and economical solution for elevator shaft construction. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a left view of the self-flipping operating platform of this utility model.

[0019] Figure 2 This is the front view of the self-flipping operating platform of this utility model.

[0020] Figure 3 This is a top view of the self-flipping operating platform of this utility model.

[0021] Figure 4 This is a schematic diagram showing the rotation direction of the support rod of this utility model.

[0022] Figure 5 This is a top view of the telescopic push rod of this utility model.

[0023] Figure 6 This is a diagram showing the retracted state of the telescopic push rod of this utility model.

[0024] Figure 7 This is a diagram showing the telescopic push rod of this utility model in its unfolded state.

[0025] In the diagram: Right-angled triangle frame-1; Upright pole-11; Horizontal bar-12; Diagonal bar-13; Lifting ring-14; Reinforcing bar-15; Connecting rod-2; Limiting rod-3; Support rod-4; Telescopic push rod-5; L-shaped push rod-51; Fixing ring-52; Baffle-53; Operating table-16; Rotating shaft-17. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figure 1 , 2 As shown in Figure 3, in Embodiment 1, a self-tilting operating platform for an elevator shaft includes two parallel and corresponding right-angled triangular frames 1, which are connected by a connecting rod 2. Each right-angled triangular frame 1 is provided with a limiting rod 3, and each right-angled triangular frame 1 has a support rod 4 hinged to its lower end. The support rod 4 cooperates with the limiting rod 3, and the limiting rod 3 can limit the rotation angle of the support rod 4. Each right-angled triangular frame 1 is provided with a telescopic push rod 5 for cooperating with the inner wall of the elevator shaft.

[0028] In a further specific embodiment, the right-angled triangular frame 1 includes a vertically arranged upright 11 and a horizontally arranged crossbar 12. One end of the upright 11 and one end of the crossbar 12 are fixedly connected, and the other end of the upright 11 and the other end of the crossbar 12 are connected by a diagonal brace 13. The upright 11 and the crossbar 12 are connected by a reinforcing rod 15 to enhance the strength of the right-angled triangular frame. Specifically, in this embodiment, the upright 11, crossbar 12, and diagonal brace 13 are all channel steel, specifically 10# channel steel. The connecting rod 2 and the reinforcing rod 15 are both steel bars, specifically C25 steel bars. The material selection of the components in this embodiment makes the entire platform structure both robust and not too heavy, thereby reducing the overall weight while ensuring strength, facilitating movement and installation.

[0029] In addition, such as Figure 4 As shown, both the limiting rod 3 and the limiting rod 4 are channel steel, specifically 10# channel steel. The limiting rod 4 is horizontally fixed on one side of the upright 11, specifically welded horizontally to the lower end of the upright 11 at 200mm. A rotating shaft 17 is fixedly installed on the side wall of the upright 11, specifically welded horizontally to the outside of the upright at 250mm from the bottom. The support rod 4 and the rotating shaft 17 rotate in cooperation. The limiting rod 3 can limit the support rod 4 to a position perpendicular to the upright 11, preventing the outer end of the support rod 4 from flipping upward.

[0030] As a further specific embodiment, a lifting ring 14 is fixedly arranged on the cross bar 12. In this embodiment, a total of four lifting rings are provided, which is convenient for connecting the lifting equipment, quickly lifting and moving the platform. Through integral hoisting and in combination with the rotational erection method of the support rods, the installation and disassembly efficiency is improved, and the transfer and use speed is increased.

[0031] As a further specific embodiment, an operating table surface 16 is fixedly connected to the tops of the two right triangle frames 1, providing a stable operating platform for the staff, enabling the staff to safely carry out construction operations such as installation in the elevator shaft. Specifically, in this embodiment, the operating table surface is made of 2 pieces of 10# channel steel with a length of 1.92 m and 7 square steel pipes with a cross-section of 40*40 mm welded into a "field" - shaped skeleton. At the four corners, C20 mm round steel is welded into lifting rings with a height of 95 mm and a width of 70 mm. A 5 - mm - thick steel plate is welded on the skeleton for personnel to step on. The "field" - shaped skeleton is welded and fixed to the cross bar 12 of the two right triangle frames.

[0032] Embodiment 2, a self - tipping operating platform for an elevator shaft. On the basis of Embodiment 1, as shown in Figure 5 、 6 、7, the telescopic push rod 5 includes an L - shaped support rod 51. Specifically, the L - shaped support rod 51 is made by bending C20 steel bars. The long side is 245 mm and the short side is 70 mm. A fixed ring 52 is fixedly welded on the cross bar 12. The L - shaped support rod 51 is inserted into the fixed ring 52, and the rear end of the L - shaped support rod 51 cooperates with the lifting ring 14. When installing the operating platform, the L - shaped support rod 51 is pushed out. The long side of the L - shaped support rod 51 contacts the elevator shaft wall, and the short side abuts against the rear lifting ring to form a fixation.

[0033] As an optional solution, the front end of the L - shaped support rod 51 cooperates with an opening formed on the inner wall of the elevator shaft. During actual use, first, holes are drilled on the inner wall of the elevator shaft at the corresponding position of the L - shaped support rod according to the installation position of the platform. When installing, the front end of the L - shaped support rod 51 is inserted into the through - hole to achieve the fixation and support of the platform position.

[0034] As another optional solution, a baffle 53 for cooperating with the inner wall of the elevator shaft is arranged at the front end of the L - shaped support rod 51. The baffle 53 is a steel plate of 100*100*5 mm. The end of the long side of the L - shaped support rod 51 is perpendicularly welded at the center of the steel plate to form a telescopic push rod. When in use, the L - shaped support rod is pushed forward, and the steel plate is propped against the inner wall of the elevator shaft to form a support.

[0035] During actual use, the traction end of the lifting equipment, such as a traction machine, is connected to the lifting ring 14 on the crossbar 12. After starting the equipment, the platform moves upward as a whole, and the support rod 4 retracts to a parallel position with the upright due to its own weight and rotation around the pivot 17. After the platform is lifted to the designated floor, the support rod 4 is pulled out to form a stable support by perpendicularly engaging with the limit rod 3. The L-shaped push rod 51 of the telescopic push rod 5 is pushed out along the fixing ring 52, with its front end engaging with the inner wall of the elevator shaft, so that the platform is tightly attached to the shaft wall. Construction personnel can perform elevator shaft construction or maintenance work on the operating platform, which provides a stable environment and ensures construction safety.

[0036] In summary, the self-tilting operating platform for elevator shafts of this utility model, through the above-mentioned structural design and usage process, offers convenient lifting, saves construction time, reduces labor requirements, and boasts high safety performance. It achieves both safe load-bearing capacity and efficient construction, providing a more reliable, convenient, and economical solution for elevator shaft construction.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-tilting operating platform for elevator shafts, characterized in that: It includes two parallel right-angled triangular frames (1), which are connected by a connecting rod (2); a limit rod (3) is provided on the right-angled triangular frame (1), and a support rod (4) is hinged to the lower end of each right-angled triangular frame (1). The support rod (4) cooperates with the limit rod (3), and the limit rod (3) can limit the rotation angle of the support rod (4); a telescopic push rod (5) is provided on the right-angled triangular frame (1) for cooperating with the inner wall of the elevator shaft.

2. The self-tilting operating platform for elevator shafts according to claim 1, characterized in that: The right-angled triangular frame (1) includes a vertically arranged upright (11) and a horizontally arranged crossbar (12). One end of the upright (11) and one end of the crossbar (12) are fixedly connected, and the other end of the upright (11) and the other end of the crossbar (12) are connected by a diagonal bar (13).

3. The self-tilting operating platform for elevator shafts according to claim 2, characterized in that: An operating table (16) is fixedly connected to the crossbar (12) of the two right-angled triangular frames (1).

4. The self-tilting operating platform for elevator shafts according to claim 3, characterized in that: A lifting ring (14) is fixedly provided on the crossbar (12) or the operating table.

5. The self-tilting operating platform for elevator shafts according to claim 4, characterized in that: The upright (11) and the horizontal bar (12) are connected by a reinforcing bar (15).

6. The self-tilting operating platform for elevator shafts according to claim 5, characterized in that: The uprights (11), horizontal bars (12), and diagonal bars (13) are all made of channel steel; the connecting rods (2) and reinforcing bars (15) are all made of steel bars.

7. The self-tilting operating platform for elevator shafts according to claim 6, characterized in that: The limiting rod (3) is a channel steel. The limiting rod (3) is horizontally fixed on one side of the upright (11). A rotating shaft (17) is fixed on the side wall of the upright (11). The support rod (4) rotates with the rotating shaft (17). The limiting rod (3) can limit the support rod (4) to a position that is perpendicular to the upright (11), thus preventing the outer end of the support rod (4) from flipping upward.

8. The self-tilting operating platform for elevator shafts according to any one of claims 4 to 7, characterized in that: The telescopic push rod (5) includes an L-shaped support rod (51), a fixing ring (52) is welded and fixed on the crossbar (12), the L-shaped support rod (51) passes through the fixing ring (52), and the rear end of the L-shaped support rod (51) cooperates with the lifting ring (14).

9. The self-tilting operating platform for elevator shafts according to claim 8, characterized in that: The front end of the L-shaped support rod (51) is fitted with an opening on the inner wall of the elevator shaft.

10. The self-tilting operating platform for elevator shafts according to claim 8, characterized in that: The front end of the L-shaped support rod (51) is provided with a baffle (53) for cooperating with the inner wall of the elevator shaft.

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