Temporary construction platform for elevator shaft

Abstract

The invention relates to the technical field of elevator installation, in particular to an elevator shaft temporary construction platform which comprises a supporting cross beam, stand columns are arranged on the supporting cross beam, inclined struts are arranged on the supporting cross beam, pedals are arranged on the supporting cross beam, and triangular supports are arranged below the supporting cross beam. A safety guardrail assembly is arranged on the supporting cross beam, a safety steel wire rope is arranged on the supporting cross beam, and a foot blocking plate is arranged on the inner side of the safety guardrail assembly. The servo motor drives the gear to be meshed with the rack plates, electric lifting of the mounting frame is achieved, the rollers are matched to stably slide in the mounting cavity, the height of the transverse guardrail can be flexibly adjusted according to construction requirements, the double rack plates are symmetrically arranged, stress balance is guaranteed, single-side clamping stagnation is avoided, the adjusting legs synchronously transmit driving force to the guardrail, and the safety of construction is improved. By means of the design, the problem that a traditional fixed guardrail cannot adapt to different operation heights is solved, and construction safety and operation convenience are improved.

Description

Technical Field

[0001] The present application relates to the technical field of elevator installation, and in particular to a temporary construction platform for an elevator shaft. Background Art

[0002] Elevator installation technology refers to a complete set of engineering technologies for assembling, debugging and accepting elevator equipment in accordance with specifications, mainly including key processes such as shaft measurement, guide rail installation, car assembly, door system debugging, electrical system wiring, and safety device testing.

[0003] Traditional elevator installation technology relies on a full-height scaffolding in the shaft as an operating platform. The high rental and transportation costs and manual erection and dismantling fees significantly increase the total construction cost. At the same time, the time consumed in erecting and dismantling the scaffolding accounts for a long period of shaft operation time. Secondly, the high-altitude erection of the shaft is prone to safety accidents such as falling people and being hit by objects. The protective blind spot between the scaffolding and the shaft wall further amplifies the safety risk. Its huge structure also hinders material transportation and equipment lifting.

[0004] In view of the above-mentioned related technologies, a temporary construction platform for an elevator shaft is proposed. Summary of the Invention

[0005] The purpose of this application is to provide a temporary construction platform for an elevator shaft to solve the shortcomings of the scaffolding used in traditional elevator installation, such as high cost, long construction period, great safety hazards and obstruction of material transportation.

[0006] The present application provides a temporary construction platform for an elevator shaft, which adopts the following technical solutions: a supporting beam, a column is provided on the supporting beam, a diagonal brace is provided on the supporting beam, a pedal is provided on the supporting beam, a triangular brace is provided below the supporting beam, a safety guardrail assembly is provided on the supporting beam, a safety wire rope is provided on the supporting beam, and a footboard is provided on the inner side of the safety guardrail assembly. Preferably, the supporting beams and columns together constitute the platform body, the number of the supporting beams is two and they are arranged in a transverse symmetrical manner, the number of the columns is two and they are respectively perpendicular to the two supporting beams, the columns are fastened to the supporting beams by M10 bolts, and the supporting beams and columns are both bent and formed by three-millimeter plates.

[0007] By adopting the above technical solution, a stable frame is formed by transversely symmetrical double-support beams and vertical columns, which enhances the overall load-bearing capacity and torsional resistance, prevents platform deformation, and adopts standardized bolt connections to facilitate disassembly and reuse, thereby reducing construction costs. The lightweight design of the three-millimeter plate reduces the weight of the platform body while ensuring structural strength, making it suitable for installation in the narrow space of the elevator shaft.

[0008] Preferably, the diagonal brace is installed on a preset connection point between the supporting beam and the column. There are two diagonal braces, which are respectively used to connect a group of supporting beams and columns. The diagonal brace is made of flat iron with a width of 40 mm and a thickness of 5 mm.

[0009] By adopting the above technical solution, the triangular stabilizing structure with two diagonal braces can greatly improve the platform's ability to resist lateral forces and prevent overturning due to eccentric loads during construction. Flat iron materials are low-cost and easy to process, and the five-millimeter thickness design balances strength and weight, making it suitable for temporary construction scenarios.

[0010] Preferably, the pedal is laid on the platform body, and the pedal is made of aluminum alloy patterned aluminum plate and is fastened to the supporting beam by M bolts.

[0011] By adopting the above technical solution, the aluminum alloy material is rust-proof and lightweight, the patterned surface is non-slip, and construction safety is improved. The M8 bolt fixing method allows for quick installation or replacement.

[0012] Preferably, the triangular supports are formed by welding plates and there are two of them. The two triangular supports are fastened to the bottom of the supporting beam by bolts, and the two triangular supports are respectively located on opposite sides of the two supporting beams.

[0013] By adopting the above technical solution, welding ensures the rigidity of the triangular brace, and bolt connection facilitates transportation and assembly. The triangular brace is symmetrically arranged under the supporting beam to further disperse the load to the elevator shaft wall and reduce the risk of beam bending.

[0014] Preferably, the safety wire rope is installed on the side of the supporting beam away from the column through a lifting eye bolt, and the footboard is fastened to the inner side of the safety guardrail assembly through bolts, and the bottom surface of the footboard is in contact with the top surface of the pedal.

[0015] By adopting the above technical solution, the eyebolt provides a high-strength connection point, ensuring that the wire rope can reliably bear the impact force of falling in an emergency. The footboard fits the pedal to prevent tools or debris from falling from the edge of the pedal, ensuring the safety of the workers below.

[0016] Preferably, the safety guardrail assembly includes a mounting cavity, a rack plate is fixedly connected to the interior of the mounting cavity, a mounting frame is slidably connected to the interior of the mounting cavity, a servo motor is fixedly connected to the mounting frame, a gear is rotatably connected to the mounting frame, a roller is fixedly connected to the outside of the mounting frame, and an adjustment leg is fixedly connected to the top of the mounting frame.

[0017] By adopting the above technical solution, the servo motor drives the gear to engage with the rack plate, which can realize the electric lifting of the mounting frame, making it easy to adjust the height of the safety guardrail assembly according to construction requirements, replacing manual adjustment and improving efficiency.

[0018] Preferably, interfaces are reserved on the four corners of the platform body, vertical guardrails are inserted in the interfaces, two vertically distributed horizontal guardrails are fixedly connected between two adjacent vertical guardrails, and a connecting rod located between the two adjacent vertical guardrails is fixedly connected between the upper and lower horizontal guardrails. The installation cavity is opened in the two vertical guardrails close to the side of the safety wire rope, and an extension rod is slidably connected in the two vertical guardrails away from the safety wire rope. The extension rod is fixedly connected to the horizontal guardrail, and the interface is made of a 30 mm square tube, and the vertical guardrail and the horizontal guardrail are both made of a 25 mm square tube.

[0019] By adopting the above technical solution, 25mm and 30mm standardized square tubes are easy to purchase and assemble, the modular design can quickly realize the disassembly and assembly of the safety guardrail assembly, and the design of the extension rod allows the horizontal guardrail on the side close to the installation cavity to be raised and lowered while the horizontal guardrail on the side away from the installation cavity is kept raised and lowered synchronously, thereby improving the stability of the safety guardrail assembly during raising and lowering.

[0020] Preferably, there are two rack plates and they are located on both sides of the mounting frame, the two gears are respectively engaged with the two rack plates, the output shaft of the servo motor is fixedly connected to the gear, the roller is installed on the outside of the mounting frame in a centrally symmetrical manner, the roller is slidingly connected to the inner wall of the mounting cavity, and the top of the adjusting leg is fixedly connected to the horizontal guardrail.

[0021] By adopting the above technical solution, the double rack plates and gears are symmetrically meshed, achieving bidirectional force balance, avoiding jamming caused by unilateral wear, improving lifting stability, and adjusting the legs to be fixed to the horizontal guardrail. The driving force of the servo motor can be transmitted to the guardrail to ensure synchronous lifting and prevent overloading.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The safety guardrail assembly of this invention uses a servo motor to drive the gear and mesh the rack plate to achieve electric lifting of the mounting frame. The rollers slide smoothly within the mounting cavity, allowing the horizontal guardrail to be flexibly adjusted in height according to construction requirements. The symmetrical arrangement of the two rack plates ensures balanced force and prevents unilateral jamming. The adjustable legs synchronously transmit the driving force to the guardrail, ensuring a stable lifting process. This design solves the problem of traditional fixed guardrails being unable to adapt to different working heights, improving construction safety and operational convenience. 2. The support beams and columns of the present invention are quickly connected with M10 bolts, the diagonal braces and triangular braces are fixed with bolts to enhance overall rigidity, and the pedals are fastened to the support beams with M8 bolts. The aluminum alloy material reduces deadweight and is non-slip. The safety wire rope is securely fixed with eyebolts. The footboard fits the edge of the pedal to prevent falling objects. The platform body adopts a modular assembly design and standardized connection method, which does not require welding or special tools, greatly shortening installation time, improving construction efficiency, and reducing the risk of high-altitude operations. 3. The platform body of the present invention is made of 3 mm bent plate to form supporting beams and columns, which are fixed by bolts. At the same time, the vertical guardrails and the horizontal guardrails adopt 25 mm square tube plug-in and 30 mm square tube interface to form a modular frame. It can be disassembled and transported, and has a high reuse rate. Compared with traditional scaffolding, it not only saves a lot of related costs, but also reduces material loss and storage and transportation difficulties. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of this application; Figure 2 It is a schematic diagram of the front structure of this application; Figure 3 It is a left-side structural diagram of this application; Figure 4 It is a schematic diagram of the top view of the structure of this application; Figure 5 It is a schematic diagram of the structure of the safety guardrail component of this application; Figure 6 This is a schematic diagram of the local structure of the installation cavity and its related parts of this application.

[0024] Explanation of the accompanying drawings: 1. Support beam; 2. Column; 3. Diagonal brace; 4. Pedal; 5. Triangular brace; 6. Safety guardrail assembly; 601. Mounting cavity; 602. Rack plate; 603. Mounting frame; 604. Servo motor; 605. Gear; 606. Roller; 607. Adjustment leg; 7. Safety wire rope; 8. Footboard. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1 -Attached Figure 6 , further details of this application are given.

[0026] Example 1: A temporary construction platform for an elevator shaft, referring to Figure 1 , including a supporting beam 1, a column 2 is provided on the supporting beam 1, a diagonal brace 3 is provided on the supporting beam 1, a pedal 4 is provided on the supporting beam 1, a triangular brace 5 is provided below the supporting beam 1, a safety wire rope 7 is provided on the supporting beam 1, and a footboard 8 is provided on the inner side of the safety guardrail assembly 6.

[0027] The supporting beam 1 and the column 2 together constitute the main body of the platform. There are two supporting beams 1 and they are arranged in a transverse symmetrical manner. There are two columns 2 and they are perpendicular to the two supporting beams 1 respectively. The column 2 is fastened to the supporting beam 1 by M10 bolts. The supporting beam 1 and the column 2 are both bent and formed by three-millimeter plates.

[0028] The diagonal braces 3 are installed at the preset connection points between the supporting beams 1 and the columns 2. There are two diagonal braces 3, which are used to connect a group of supporting beams 1 and columns 2 respectively. The diagonal braces 3 are made of flat iron with a width of 40 mm and a thickness of 5 mm.

[0029] The pedal 4 is laid on the platform body. The pedal 4 is made of aluminum alloy patterned aluminum plate and is fastened to the supporting beam 1 by M8 bolts.

[0030] The triangular supports 5 are formed by welding plates and there are two of them. The two triangular supports 5 are fastened to the bottom of the supporting beam 1 by bolts. The two triangular supports 5 are respectively located on the opposite sides of the two supporting beams 1.

[0031] The safety wire rope 7 is installed on the side of the supporting beam 1 away from the column 2 through the eye bolt, and the footboard 8 is fastened to the inner side of the safety guardrail assembly 6 by bolts, and the bottom surface of the footboard 8 is in contact with the top surface of the pedal 4.

[0032] The eyebolt is a special fastener with a ring end, and its structure includes a closed eye at the top and a threaded rod at the bottom. In this application, the eyebolt is mainly used to install a safety wire rope (7). Specifically, the threaded end of the eyebolt is firmly installed on the side of the supporting beam (1) away from the column (2), and the threaded connection ensures reliable fastening, while the ring eye at the top is used to connect the safety wire rope to form a reliable anti-fall protection system. This design not only ensures the connection strength, but also can withstand the impact load during a sudden fall, and is convenient for the installation and removal of the wire rope.

[0033] The implementation principle of Example 1 of the present application is as follows: the platform body is composed of two laterally symmetrically arranged supporting beams 1 and two vertically fixed columns 2 connected by M10 bolts to form a basic frame. The three-millimeter bent plate ensures both structural strength and overall weight control. The two diagonal braces 3 installed between the supporting beam 1 and the column 2 are made of 40-mm-wide and 5-mm-thick flat iron to form a triangular stable structure, which effectively resists the lateral force during construction and prevents the platform from overturning. The aluminum alloy patterned aluminum plate pedal 4 laid above the platform body is fixed to the supporting beam 1 by M8 bolts, which provides a non-slip working surface and is easy to disassemble and replace. The two triangular The support 5 is formed by welding and then bolted to the opposite side of the supporting beam 1, which effectively transfers the platform load to the elevator shaft wall, significantly reducing the risk of bending deformation of the supporting beam 1. The safety wire rope 7 installed on the outside of the supporting beam 1 through the eye bolt constitutes an anti-fall protection system, which can withstand impact loads in the event of an accident. The footboard 8 arranged on the inside of the safety guardrail assembly 6 fits tightly with the pedal 4 to prevent tools or materials from falling and injuring people below. The entire platform body achieves rapid assembly and disassembly through modular design, and each connection node is connected with standardized bolts, which not only ensures structural reliability but also improves construction efficiency. It is particularly suitable for temporary construction operations in the elevator shaft.

[0034] Example 2: A temporary construction platform for an elevator shaft, wherein a safety guardrail assembly 6 is provided on the supporting beam 1; The safety guardrail assembly 6 includes an installation cavity 601, a rack plate 602 is fixedly connected to the interior of the installation cavity 601, a mounting frame 603 is slidably connected to the interior of the installation cavity 601, a servo motor 604 is fixedly connected to the mounting frame 603, a gear 605 is rotatably connected to the mounting frame 603, a roller 606 is fixedly connected to the outside of the mounting frame 603, and an adjustment leg 607 is fixedly connected to the top of the mounting frame 603.

[0035] Interfaces are reserved on the four corners of the platform body, and vertical guardrails are inserted in the interfaces. Two vertically distributed horizontal guardrails are fixedly connected between the two adjacent vertical guardrails. A connecting rod located between the two adjacent vertical guardrails is fixedly connected between the upper and lower horizontal guardrails. The installation cavity 601 is opened in the two vertical guardrails close to the side of the safety wire rope 7, and an extension rod is slidably connected in the two vertical guardrails away from the safety wire rope 7. The extension rod is fixedly connected to the horizontal guardrail. The interface is made of 30 mm square tube, and the vertical guardrail and the horizontal guardrail are both made of 25 mm square tube.

[0036] There are two rack plates 602, which are located on both sides of the mounting frame 603. The two gears 605 are respectively engaged with the two rack plates 602. The output shaft of the servo motor 604 is fixedly connected to the gear 605. The roller 606 is installed on the outside of the mounting frame 603 in a centrally symmetrical manner. The roller 606 is slidingly connected to the inner wall of the mounting cavity 601, and the top of the adjusting leg 607 is fixedly connected to the horizontal guardrail.

[0037] The implementation principle of Example 2 of the present application is as follows: the safety guardrail assembly 6 realizes the lifting function through the meshing mechanism of the double rack plate 602 and the gear 605 in the installation cavity 601. When the servo motor 604 drives the gear 605 to rotate, it drives the mounting frame 603 to move up and down along the rack plate 602. The rollers 606 symmetrically arranged on the outside of the mounting frame 603 slide with the inner wall of the installation cavity 601 to ensure that the lifting process is smooth and smooth. The adjusting legs 607 transmit the lifting movement of the mounting frame 603 to the horizontal guardrail to realize the overall height adjustment of the safety guardrail assembly 6. The 30 mm square tube interfaces set at the four corners of the platform body and the vertical guardrail made of 25 mm square tubes are plug-in. The two vertical guardrails on one side of the safety wire rope 7 are connected in a direct connection, and the installation cavity 601 mechanism is set in the two vertical guardrails on the other side, and the two vertical guardrails on the other side are connected to the horizontal guardrail through an extension rod. This symmetrical design ensures the synchronization and stability of the guardrail when it is raised and lowered. When the guardrail height needs to be adjusted, the servo motor 604 is started to drive the gear 605 to rotate, and the mounting frame 603 is moved up and down through the rack transmission, thereby driving the adjustment leg 607 and the horizontal guardrail to rise and fall as a whole. At the same time, the extension rod on the other side slides synchronously in the vertical guardrail. The entire adjustment process does not require manual intervention, and the operation is simple and reliable. The design of the double rack plate 602 avoids the jamming problem caused by unilateral force.

[0038] The overall working process of the present invention is as follows: first, the operator places two supporting beams 1 horizontally and symmetrically at the predetermined installation positions of the elevator shaft. The two supporting beams 1 formed by bending three-millimeter plates constitute the basic load-bearing structure of the platform. Use M10 bolts to vertically fix the two columns 2 at the designated positions of the supporting beams 1 to form a stable platform body. The symmetrical arrangement of the supporting beams 1 and the columns 2 ensures the overall stability of the platform body. Then the diagonal braces 3 are installed, and two diagonal braces 3 made of forty-mm-wide and five-mm-thick flat irons are respectively connected to the preset connection points between the supporting beams 1 and the columns 2 to form a triangular stable structure, which can greatly enhance the ability of the platform body to resist lateral forces. Then, multiple aluminum alloy patterned aluminum plate pedals 4 are laid in sequence on the surface of the assembled platform body. Each pedal 4 is firmly connected to the supporting beam 1 below with M8 bolts. This design not only provides a non-slip working surface, but also facilitates later maintenance and replacement. The safety guardrail assembly The vertical guardrails of 6 are accurately inserted into the 30 mm square tube interfaces reserved at the four corners of the platform and locked with quick latches. After completing the installation of the safety guardrail assembly 6, immediately install and tighten the footboard 8 on the inside of the guardrail to ensure that its bottom surface is tightly fitted with the top surface of the pedal 4 to prevent tools from falling. Move the assembled platform body to the working position, adjust it to a horizontal state, and use expansion bolts to permanently fix the platform base to the floor door sill. Two welded triangular supports 5 are symmetrically installed under the supporting beam 1. The overall stability of the platform body is enhanced by bolt connection. At the same time, the safety wire rope 7 is installed on the side of the supporting beam 1 away from the column 2 through the eye bolt to form a reliable anti-fall protection system. The servo motor 604 needs to be debugged to ensure that the gear 605 engages smoothly with the double rack plate 602, the roller 606 slides unimpeded in the installation cavity 601, and the adjustment leg 607 is firmly connected to the horizontal guardrail to achieve smooth adjustment of the height of the safety guardrail assembly 6.

[0039] The examples of this specific embodiment are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, any equivalent changes made based on the structure, shape, and principle of this application should be included in the scope of protection of this application.

Claims

1. A temporary construction platform for an elevator shaft, comprising a supporting beam (1), characterized in that: The support beam (1) is provided with a column (2), the support beam (1) is provided with a diagonal brace (3), the support beam (1) is provided with a pedal (4), a triangular brace (5) is provided below the support beam (1), a safety guardrail assembly (6) is provided on the support beam (1), a safety steel wire rope (7) is provided on the support beam (1), and a footboard (8) is provided inside the safety guardrail assembly (6).

2. A temporary construction platform for an elevator shaft according to claim 1, characterized in that: The supporting crossbeam (1) and the column (2) together constitute the platform body. The number of the supporting crossbeams (1) is two and they are arranged in a transverse symmetrical manner. The number of the columns (2) is two and they are respectively perpendicular to the two supporting crossbeams (1). The columns (2) are fastened to the supporting crossbeams (1) by M10 bolts. The supporting crossbeams (1) and the columns (2) are both formed by bending 3 mm plates.

3. The temporary construction platform for an elevator shaft according to claim 1, characterized in that: The diagonal brace (3) is installed at a preset connection point between the supporting beam (1) and the column (2). There are two diagonal braces (3) and they are used to connect a group of supporting beams (1) and columns (2). The diagonal brace (3) is made of flat iron with a width of 40 mm and a thickness of 5 mm.

4. The temporary construction platform for an elevator shaft according to claim 2, characterized in that: The pedal (4) is laid on the platform body, and the pedal (4) is made of an aluminum alloy patterned aluminum plate and is fastened to the supporting beam (1) by M8 bolts.

5. The temporary construction platform for an elevator shaft according to claim 1, characterized in that: The triangular supports (5) are formed by welding plates and are two in number. The two triangular supports (5) are fastened below the supporting beam (1) by bolts. The two triangular supports (5) are respectively located on opposite sides of the two supporting beams (1).

6. The temporary construction platform for an elevator shaft according to claim 1, characterized in that: The safety wire rope (7) is installed on the side of the supporting beam (1) away from the column (2) through an eye bolt, and the footboard (8) is fastened to the inner side of the safety guardrail assembly (6) through bolts, and the bottom surface of the footboard (8) is in contact with the top surface of the pedal (4).

7. The temporary construction platform for an elevator shaft according to claim 2, characterized in that: The safety guardrail assembly (6) comprises a mounting cavity (601), a rack plate (602) fixedly connected to the interior of the mounting cavity (601), a mounting frame (603) slidably connected to the interior of the mounting cavity (601), a servo motor (604) fixedly connected to the mounting frame (603), a gear (605) rotatably connected to the mounting frame (603), a roller (606) fixedly connected to the outside of the mounting frame (603), and an adjusting leg (607) fixedly connected to the top of the mounting frame (603).

8. The temporary construction platform for an elevator shaft according to claim 7, characterized in that: Interfaces are reserved on the four corners of the platform body, and vertical guardrails are inserted into the interfaces. Two adjacent vertical guardrails are fixedly connected to each other with two upper and lower horizontal guardrails. A connecting rod located between the two adjacent vertical guardrails is fixedly connected between the upper and lower horizontal guardrails. The installation cavity (601) is opened in the two vertical guardrails on the side close to the safety wire rope (7), and an extension rod is slidably connected in the two vertical guardrails away from the safety wire rope (7). The extension rod is fixedly connected to the horizontal guardrail. The interface is made of a 30 mm square tube, and the vertical guardrail and the horizontal guardrail are both made of a 25 mm square tube.

9. The temporary construction platform for an elevator shaft according to claim 8, characterized in that: There are two rack plates (602) and they are respectively located on both sides of the mounting frame (603); the two gears (605) are respectively engaged with the two rack plates (602); the output shaft of the servo motor (604) is fixedly connected to the gear (605); the roller (606) is centrally symmetrically mounted on the outside of the mounting frame (603); the roller (606) is slidably connected to the inner wall of the mounting cavity (601); and the top of the adjusting leg (607) is fixedly connected to the horizontal guardrail.

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