An elevator shaft adjustable platform

Abstract

The utility model discloses an adjustable platform of elevator shaft relates to elevator construction construction technology field, and the utility model discloses a frame is equipped with the adjustment mechanism on the outside of frame, is used for adjusting the size of platform, and the adjustment mechanism includes: adjusting assembly includes four mobile racks of sliding card and being equipped on the outside of frame, and the application is through the two double -end cylinders of mutual perpendicular distribution and drives four mobile racks, realizes the size accurate adjustment of platform on two dimensions, when the platform is put into the elevator shaft, and the double -end cylinder synchronous push mobile rack and expand outward, until mobile rack and the well wall closely, this structure can automatic quick adaptation different long width size's elevator shaft, need not manual adjustment its size, only needs manual follow -up to be through the bolt further fixed mobile rack, avoids the traditional fixed size platform and cannot satisfy the installation use to different elevator shaft, or relies on manual platform size adjustment, and the dangerous coefficient high problem.

Description

Technical Field

[0001] This utility model relates to the field of elevator construction technology, specifically an adjustable platform for elevator shafts. Background Technology

[0002] In the field of modern building construction, elevator shaft platforms are key facilities for construction workers to carry out installation, maintenance and other operations in elevator shafts. Their performance directly affects construction safety and efficiency. With the rapid development of the construction industry, the size and shape of elevator shafts vary significantly in different building projects.

[0003] Referring to the patent document: Patent Publication No. CN119981418A, Patent Publication Date 2025-05-13, an elevator shaft construction platform is provided, including a support platform composed of a base and a support plate, and further including: a construction platform, including a load-bearing plate and a threaded ring disposed at the center of the load-bearing plate, for supporting construction personnel to work in the elevator shaft; a drive assembly disposed at the upper end of the support plate, for driving the construction platform to move up and down in the elevator shaft; and a support assembly disposed inside the base, for abutting against the inner wall of the elevator shaft to fix the support platform; by setting up the base, support plate, construction platform, drive assembly and support assembly, the construction platform can be moved freely above the support plate by the drive assembly, and the retractable support assembly can quickly complete the transfer of the construction platform, saving a lot of time, and continuous construction can be carried out on higher floors without the need for pre-installed cranes.

[0004] Based on the search of patent numbers and the shortcomings of existing technologies, the following was found:

[0005] In the existing technology, the platforms used in the construction of elevator shafts are mostly fixed, which cannot be flexibly adapted to various specifications of shafts. They often need to be customized for different specifications of shafts, resulting in high production costs and poor equipment versatility. While some adjustable platforms are used, they rely on complex manual operations or auxiliary equipment during installation, making the installation process cumbersome and time-consuming.

[0006] Therefore, this utility model provides an adjustable platform for elevator shafts. Utility Model Content

[0007] In order to solve the problem that existing elevator shaft construction platforms cannot flexibly cope with shafts of different specifications, the purpose of this utility model is to provide an adjustable elevator shaft platform.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adjustable platform for elevator shafts, comprising a frame, wherein an adjustment mechanism is provided on the outer side of the frame for adjusting the dimensions of the platform, the adjustment mechanism comprising:

[0009] The adjustment assembly includes four movable frames that are slidably mounted on the outside of the frame. The lower part of the frame is equipped with two double-headed cylinders that are perpendicular to each other. One of the double-headed cylinders is fixedly mounted on the bottom end of the frame. Mounting seats are fixedly mounted on the middle of the bottom end of each of the four movable frames. The middle of one side of each mounting seat is fixedly mounted on the drive end of the double-headed cylinder. The outside of the frame is provided with multiple equally spaced mounting holes. Bolts are slidably mounted on the middle of each mounting hole. Nuts are threaded onto one side of each bolt.

[0010] The fixed components are located at the bottom of the mobile frame and are used to support the entire platform.

[0011] Preferably, the fixing assembly includes a support rod rotatably mounted on the lower part of the movable frame, and a torsion spring is installed on one side of the support rod for limiting the position of the support rod.

[0012] Preferably, a mounting cover is fixedly installed at the bottom end of the frame, and another double-headed cylinder is fixedly installed on the lower surface of the middle part of the mounting cover.

[0013] Preferably, each end of the multiple movable frames is provided with multiple limiting holes corresponding to the mounting holes, and multiple bolts slide through the middle of the limiting holes.

[0014] Preferably, the upper part of each of the multiple support rods is provided with an inclined groove, which is used to cooperate with the installation groove opened in the electric propulsion well.

[0015] Preferably, two symmetrically distributed lifting lugs are fixedly installed at the top of the frame, and the lifting lugs are made of round steel.

[0016] Beneficial effects

[0017] This utility model provides an adjustable platform for elevator shafts. Compared with the prior art, it has the following advantages:

[0018] 1. This application uses two mutually perpendicular double-headed cylinders to drive four moving frames, achieving precise adjustment of the platform's dimensions in two dimensions. When the platform is placed in the elevator shaft, the double-headed cylinders simultaneously push the moving frames outward until the moving frames are tightly fitted against the shaft wall. This structure can automatically and quickly adapt to elevator shafts of different lengths and widths without requiring manual adjustment of its dimensions. Only subsequent manual fixing of the moving frames with bolts is needed. This avoids the problem that traditional fixed-size platforms cannot meet the installation and use requirements of different elevator shafts, or that rely on manual adjustment of the platform dimensions, which has a high risk factor.

[0019] 2. After the tower crane lifts the platform to the designated height in the elevator shaft, this application only requires slowly releasing the tower crane ropes. The platform falls naturally under gravity. At this time, the support rod installed at the bottom of the moving frame automatically opens under the elastic action of the torsion spring, so that the lower surface of the moving frame contacts the lower surface of the mounting groove, and the upper surface of the moving frame contacts the upper surface of the moving frame, supporting and limiting the support rod, thereby completing the installation and fixation of the platform. When unloading, simply pull upwards, thus facilitating the installation and unloading of the platform. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is another structural schematic diagram of the present invention.

[0022] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figure 4 This utility model Figure 2 Enlarged view of point B in the middle.

[0024] Figure 5 This is a schematic diagram of the mobile frame structure of this utility model.

[0025] Figure 6 This utility model Figure 5 Enlarged view of point C in the middle.

[0026] In the diagram: 1. Frame; 11. Lifting lug; 2. Adjustment mechanism; 21. Adjustment component; 211. Mounting cover; 212. Double-headed cylinder; 213. Moving frame; 2131. Mounting base; 214. Mounting hole; 215. Bolt; 2151. Nut; 216. Limiting hole; 22. Fixing component; 221. Support rod; 222. Torsion spring. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-6 This utility model provides a technical solution: an adjustable platform for elevator shafts, including a frame 1, with an adjustment mechanism 2 on the outer side of the frame 1 for adjusting the size of the platform. The adjustment mechanism 2 includes:

[0029] The adjustment assembly 21 includes four movable frames 213 that are slidably mounted on the outside of the frame 1. The lower part of the frame 1 is provided with two double-headed cylinders 212. The double-headed cylinders 212 are standard double piston rod cylinders, model MY1B series. The two double-headed cylinders 212 are arranged perpendicularly to each other. One of the double-headed cylinders 212 is fixedly mounted on the bottom end of the frame 1. Mounting seats 2131 are fixedly mounted on the middle of the bottom end of each of the four movable frames 213. The middle of one side of each of the mounting seats 2131 is fixedly mounted on the drive end of the double-headed cylinder 212. Multiple equally spaced mounting holes 214 are opened on the outside of the frame 1. Bolts 215 are slidably mounted on the middle of each of the multiple mounting holes 214. Nuts 2151 are threaded on one side of each of the multiple bolts 215.

[0030] The fixing component 22 is located at the lower part of the mobile frame 213 and is used to support the entire platform.

[0031] The fixing component 22 includes a support rod 221 rotatably mounted on the lower part of the movable frame 213. A torsion spring 222 is installed on one side of the support rod 221. The torsion spring 222 is used to limit the support rod 221. The torsion spring 222 is made of high elastic spring steel and has stable elastic properties. It is used to limit the support rod 221 so that it can quickly open after reaching the mounting slot.

[0032] A mounting cover 211 is fixedly installed at the bottom of the frame 1, and another double-headed cylinder 212 is fixedly installed on the lower surface of the middle part of the mounting cover 211. The mounting cover 211 is made of engineering plastic with good protective performance, which can effectively protect the internal double-headed cylinder 212 and other components from dust, water vapor and other corrosion.

[0033] Multiple movable frames 213 have multiple limiting holes 216 at both ends that correspond to the mounting holes 214. Multiple bolts 215 slide through the middle of the limiting holes 216. After the bolts 215 pass through the limiting holes 216 and the mounting holes 214, nuts 2151 are installed on the other side. Under the limiting of the bolts 215 and nuts 2151, the movable frames 213 can be limited.

[0034] Multiple support rods 221 are provided with inclined grooves on their upper parts. The inclined grooves are used to cooperate with the installation grooves opened in the electric propulsion well. When the tower crane pulls its frame 1 upward, the support rods 221 will be horizontally inserted into the installation groove under the force of the torsion spring 222. By opening the inclined grooves, when it is not necessary to lock into the grooves, when the tower crane continues to lift upward, the support rods 221 can be rotated downward by the action of the inclined grooves, so that the support rods 221 are no longer locked into the installation grooves, and can be successfully lifted to the appropriate position.

[0035] Two symmetrically distributed lifting lugs 11 are fixedly installed at the top of the frame 1. The lifting lugs 11 are made of No. 16 round steel. No. 16 round steel has high tensile strength. After forging and heat treatment, its load-bearing capacity is further improved, and it can safely and reliably bear the tension during the platform hoisting process.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] During operation, the tower crane lifts the platform, connecting the two lifting lugs 11 to the tower crane hook via hook chains. The tower crane lifts the platform and places it into the elevator shaft. Two double-headed cylinders 212 simultaneously drive the two sets of moving frames 213 to expand outward. Driven by the double-headed cylinders 212, the outer sides of the two sets of moving frames 213 come into contact with the interior of the electric push shaft. Then, the tower crane can drive the frame 1 to move upward to the desired position. Inside the elevator shaft, there are pre-cut installation slots. At this time, the tower crane rope is released downward, and under the weight of the platform, it moves downward. The support rod 221 will reach the corresponding installation slot. Under the force of the torsion spring 222, the support rod 221 opens, and then the support rod 221 comes into contact with the inner wall of the installation slot. The upper surface of the support rod 221 comes into contact with the lower surface of the moving frame 213, thus supporting the moving frame 213, thereby completing the platform arrangement.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator shaft adjustable platform comprising a frame (1), characterized in that: An adjustment mechanism (2) is provided on the outside of the frame (1) for adjusting the size of the platform. The adjustment mechanism (2) includes: The adjustment assembly (21) includes four movable frames (213) that are slidably mounted on the outside of the frame (1). The lower part of the frame (1) is provided with two double-headed cylinders (212), and the two double-headed cylinders (212) are arranged perpendicularly to each other. One of the double-headed cylinders (212) is fixedly mounted on the bottom end of the frame (1). Mounting seats (2131) are fixedly mounted on the middle of the bottom end of each of the four movable frames (213). The middle of one side of each of the mounting seats (2131) is fixedly mounted on the driving end of the double-headed cylinder (212). Multiple equally spaced mounting holes (214) are opened on the outside of the frame (1). Bolts (215) are slidably mounted on the middle of each of the multiple mounting holes (214). Nuts (2151) are threaded on one side of each of the multiple bolts (215). The fixing component (22) is located at the lower part of the mobile frame (213) and is used to support the entire platform.

2. An adjustable platform for an elevator shaft according to claim 1, characterized in that: The fixing component (22) includes a support rod (221) rotatably mounted on the lower part of the movable frame (213), and a torsion spring (222) is installed on one side of the support rod (221). The torsion spring (222) is used to limit the support rod (221).

3. The adjustable platform for elevator shafts according to claim 1, characterized in that: A mounting cover (211) is fixedly installed at the bottom of the frame (1), and another double-headed cylinder (212) is fixedly installed on the lower surface of the middle part of the mounting cover (211).

4. The adjustable platform for elevator shafts according to claim 1, characterized in that: Multiple limiting holes (216) corresponding to the mounting holes (214) are provided at both ends of the multiple movable frames (213), and multiple bolts (215) slide through the middle of the limiting holes (216).

5. An adjustable platform for elevator shafts according to claim 2, characterized in that: Each of the support rods (221) has an inclined groove on its upper part, which is used to cooperate with the installation groove opened in the electric propulsion well.

6. The adjustable platform for elevator shafts according to claim 1, characterized in that: The top of the frame (1) is fixedly equipped with two symmetrically distributed lifting lugs (11), which are made of (16) round steel.

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