Elevator shaft operating platform

Abstract

The present invention provides an elevator shaft operating platform, comprising a horizontally arranged middle frame, a first frame is arranged on one side of the middle frame, a second frame is arranged on the other side of the middle frame, the upper surfaces of the first frame, the second frame and the middle frame are located in the same horizontal plane, an adjustment mechanism for adjusting the distance between the first frame and the second frame is arranged between the first frame and the second frame, and the first frame and the middle frame are connected in a nested manner. The elevator shaft operating platform provided by the present invention is adopted, and the spacing between the first frame and the second frame is adjusted by the adjustment mechanism, so that it is smoother to enter the narrow space of the elevator shaft, and the first frame and the middle frame, and the second frame and the middle frame are connected by nested manner, which can increase the stability of the connection between the first frame and the middle frame, and between the second frame and the middle frame.

Description

Technical Field

[0001] The invention belongs to the technical field of building engineering, and in particular relates to an elevator shaft operating platform. Background Art

[0002] In construction, there is no foothold inside the cylinder for the construction of cast-in-place shear wall formwork in elevator shafts. During the construction process, the traditional practice is to build scaffolding inside the cylinder, and a simple formwork platform must be built for each pouring of a layer. The more common method is to use steel pipes, fasteners, and wooden boards for overlap, which consumes a lot of materials, has high construction costs, is labor-intensive and time-consuming, and affects construction efficiency. In addition, the simple formwork platform poses a great safety hazard.

[0003] The Chinese patent (patent number CN201410250260.4) "A construction method and device for an elevator shaft" adopts an automatic flipping design to abolish the erection of scaffolding in the existing elevator shaft and use the shaft wall of the elevator shaft as a support for the operating platform. The specific method is to reserve support holes on the shaft wall of the elevator shaft, and use different states of the support legs at both ends of the support beam of the operating platform to fix and lift the operating platform. To a certain extent, it solves the problem of large consumables in the construction of traditional elevator shaft operating platforms and saves costs. However, in order to allow the support legs to flip into the support holes, the diameter of the support holes must be much larger than the diameter of the support legs. This poses a problem of staff working on the operating platform, which is prone to displacement or even falling. The stability of the working platform cannot be guaranteed, and there are certain safety hazards. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an elevator shaft operating platform which is easy to operate and has good stability.

[0005] The present invention provides an elevator shaft operating platform, comprising a horizontally arranged middle frame, a first frame being arranged on one side of the middle frame, and a second frame being arranged on the other side of the middle frame, the upper surfaces of the first frame, the second frame and the middle frame are located in the same horizontal plane, an adjustment mechanism for adjusting the distance between the first frame and the second frame is arranged between the first frame and the middle frame, and the first frame and the middle frame, as well as the second frame and the middle frame, are nested and matched and connected.

[0006] Furthermore, the adjustment mechanism includes a first adjustment main rod, a left expansion portion, and a right expansion portion. The left and right ends of the first adjustment main rod are respectively provided with a left threaded portion and a right threaded portion with opposite thread directions. The left expansion portion and the right expansion portion are respectively matched and installed on the left threaded portion and the right threaded portion, and are synchronously moved horizontally outward to expand or horizontally inward to retract with the rotation of the first adjustment main rod, wherein the left expansion portion is located on the first frame body, and the right expansion portion is located on the second frame body.

[0007] Further, the left expansion part includes a left expansion seat and a left adjusting tube installed on the left expansion seat, the inner tube wall of the left adjusting tube has an internal thread matching the left threaded portion of the first adjusting main rod, the right expansion part includes a right expansion seat and a right adjusting tube installed on the right expansion seat, the inner tube wall of the right adjusting tube has an internal thread matching the right threaded portion of the first adjusting main rod, the left adjusting tube and the right adjusting tube are meshingly sleeved on the left threaded portion and the right threaded portion of the first adjusting main rod.

[0008] Furthermore, there are at least two adjustment mechanisms, the length direction of the first adjustment main rod is arranged along the left-right direction, at least two adjustment mechanisms are arranged above the middle frame along the front-back direction, the left support part of the adjustment mechanism is arranged at the right edge of the first frame, and the right support part of the adjustment mechanism is arranged at the left edge of the second frame.

[0009] Furthermore, at least two groups of first positioning assemblies are arranged along the front-to-back direction on the left side edge of the first frame body, and the first positioning assembly includes a first positioning frame and a first tension screw passing through the first positioning frame, the length direction of the first tension screw extends along the left-right direction, and both ends of the first tension screw are screwed with a first nut; at least two groups of second positioning assemblies are arranged along the front-to-back direction on the right side edge of the second frame body, and the second positioning assembly includes a second positioning frame and a second tension screw passing through the second positioning frame, the length direction of the second tension screw extends along the left-right direction, and both ends of the second tension screw are screwed with a second nut.

[0010] Furthermore, the first positioning frame and the second positioning frame are both trough frames with openings facing outward, and channel steels are nested in the trough frames. The length direction of the channel steels extends along the front-to-back direction and is nested in multiple first positioning frames and multiple second positioning frames. The upper outer end surface of the channel steel abuts against the upper inner end surface of the trough frame, and the lower outer end surface of the channel steel abuts against the side wall surfaces of the first and second tension screws.

[0011] Furthermore, the left and right sides of the middle frame have limiting convex tubes extending toward the first frame and the second frame, and limiting sleeves for inserting the limiting convex tubes on the left and right sides of the middle frame are provided on the right side of the first frame and the left side of the second frame.

[0012] Furthermore, two symmetrically arranged support frames are provided on the first frame body and the second frame body, namely a first support frame and a second support frame, and the first support frame and the second support frame each include two support rods extending upward, a cross-arranged reinforcement rod is provided between the two support rods, connecting rods are connected between adjacent support rods, a surface cover plate is provided on the connecting rods, an opening is provided on the surface cover plate, a rotatably connected flap is provided on the surface cover plate, and the flap is used to open and close the opening of the surface cover plate.

[0013] Furthermore, an inner formwork assembly is provided around the first frame body, the middle frame body and the second frame body, and the inner formwork assembly includes side formworks provided around the first frame body, the middle frame body and the second frame body, and corner formworks are provided between adjacent side formworks, and an inclined mating surface is formed between the side formworks and the corner formworks to facilitate the side formworks to be separated from adjacent corner formworks.

[0014] Furthermore, the side formworks are respectively a first side formwork and a second side formwork arranged opposite to each other, and a third side formwork and a fourth side formwork arranged opposite to each other, the first side formwork is respectively perpendicular to the third side formwork and the fourth side formwork, the second side formwork is respectively perpendicular to the third side formwork and the fourth side formwork, and a formwork supporting mechanism for adjusting the distance between the first side formwork and the second side formwork, and between the third side formwork and the fourth side formwork is provided between the first side formwork and the second side formwork arranged opposite to each other, and between the third side formwork and the fourth side formwork.

[0015] The elevator shaft operating platform provided by the present invention can adjust the spacing between the first frame and the second frame through the adjustment mechanism, so that it can enter the narrow space of the elevator shaft more smoothly, and the first frame and the middle frame, and the second frame and the middle frame are connected by nesting, which can increase the stability of the connection between the first frame and the middle frame, and between the second frame and the middle frame. In addition, it uses the first positioning component and the second positioning component to stabilize the first frame, the middle frame, and the second frame forming the working platform in the elevator shaft, which is simple to operate, convenient and fast, and has good stability. It uses the well wall cast at the bottom as a support, is not easy to fall, and has high safety performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 Schematically illustrates an axonometric view of an elevator shaft operating platform provided in an embodiment of the present invention;

[0018] Figure 2A schematic diagram of the construction of an elevator shaft operating platform according to an embodiment of the present invention is schematically illustrated;

[0019] Figure 3 A schematic top view of an elevator shaft operating platform according to an embodiment of the present invention is shown;

[0020] Figure 4 A bottom view of an elevator shaft operating platform provided in an embodiment of the present invention is schematically shown;

[0021] Figure 5 Schematically Figure 1 A magnified view of part A;

[0022] Figure 6 Schematically Figure 1 A magnified view of part B;

[0023] Figure 7 Schematically Figure 1 Enlarged view of part C;

[0024] Figure 8 Schematically Figure 2 A magnified view of the D portion;

[0025] Fig. 9 Schematically Figure 2 Enlarged view of part E. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference Figures 1 to 9 An embodiment of the present invention provides an elevator shaft operating platform, including a horizontally arranged middle frame 1, a first frame 2 is arranged on one side of the middle frame 1, and a second frame 3 is arranged on the other side of the middle frame 1. The upper surfaces of the first frame 2, the second frame 3 and the middle frame 1 are located in the same horizontal plane, and an adjustment mechanism for adjusting the distance between the first frame 2 and the second frame 3 is arranged between the first frame 2 and the second frame 3. The first frame 2 and the middle frame 1, as well as the second frame 3 and the middle frame 1 are nested and connected.

[0031] The elevator shaft operating platform provided in the embodiment of the present invention is used to adjust the distance between the first frame 2 and the second frame 3 through an adjusting mechanism, so that it can enter the narrow space of the elevator shaft more smoothly, and the first frame 2 and the middle frame 1, and the second frame 3 and the middle frame 1 are connected through nested cooperation, which can increase the stability of the connection between the first frame 2 and the middle frame 1, and between the second frame 3 and the middle frame 1.

[0032] As a preferred embodiment, the adjustment mechanism includes a first adjustment main rod 4, a left expansion portion, and a right expansion portion. The left and right ends of the first adjustment main rod 4 are respectively provided with a left threaded portion and a right threaded portion with opposite thread directions. The left expansion portion and the right expansion portion are respectively matched and installed on the left threaded portion and the right threaded portion, and are synchronously moved horizontally outward to expand or horizontally inward to retract with the rotating first adjustment main rod 4, wherein the left expansion portion is located on the first frame 2, and the right expansion portion is located on the second frame 3.

[0033] Among them, the left-right direction, the front-back direction, and the up-down direction are as follows Figure 1 As indicated by the arrow.

[0034] Furthermore, the left expansion part includes a left expansion seat 51 and a left adjusting tube 52 installed on the left expansion seat 51, the inner tube wall of the left adjusting tube 52 has an internal thread matching the left threaded portion of the first adjusting main rod 4, the right expansion part includes a right expansion seat 61 and a right adjusting tube 62 installed on the right expansion seat 61, the inner tube wall of the right adjusting tube 62 has an internal thread matching the right threaded portion of the first adjusting main rod 4, the left adjusting tube 52 and the right adjusting tube 62 are meshingly sleeved on the left threaded portion and the right threaded portion of the first adjusting main rod 4.

[0035] Furthermore, there are at least two adjustment mechanisms. In the present embodiment, there are two adjustment mechanisms, the length direction of the first adjustment main rod 4 is arranged along the left-right direction, at least two adjustment mechanisms are arranged above the middle frame 1 along the front-back direction, the left support portion of the adjustment mechanism is arranged at the right edge of the first frame 2, and the right support portion of the adjustment mechanism is arranged at the left edge of the second frame 3.

[0036] By adopting this preferred embodiment, the adjustment mechanism between the first frame 2 and the second frame 3 is reasonably designed and easy to use. The distance between the left opening part and the right opening part is adjusted by rotating the first adjustment main rod 4, thereby adjusting the distance between the first frame 2 and the second frame 3. The operation is simple and easy to implement.

[0037] As a preferred embodiment, at least two groups of first positioning components 7 are arranged along the front-to-back direction on the left edge of the first frame 2. In this embodiment, there are two groups of first positioning components 7, and the first positioning components 7 include a first positioning frame 71 and a first tension screw 72 passing through the first positioning frame 71. The length direction of the first tension screw 72 extends along the left-right direction, and both ends of the first tension screw 72 are screwed with a first nut 73; at least two groups of second positioning components 8 are arranged along the front-to-back direction on the right edge of the second frame 3. In this embodiment, there are two groups of second positioning components 8, and the second positioning components 8 include a second positioning frame 81 and a second tension screw 82 passing through the second positioning frame 81. The length direction of the second tension screw 82 extends along the left-right direction, and both ends of the second tension screw 82 are screwed with a second nut 83.

[0038] Reference Figure 2During the construction of the elevator shaft, when pouring the bottom elevator shaft, through holes for the first pair of tension screws 72 and the second pair of tension screws 82 to pass through are reserved on the shaft wall of the elevator shaft. The distance between the left and right opening parts is adjusted by rotating the first adjustment main rod 4. When constructing the upper elevator shaft, the first frame 2, the middle frame 1, and the second frame 3 forming the working platform enter the elevator shaft. By adjusting the distance between the first frame 2 and the second frame 3 to be smaller than the width of the elevator shaft, the elevator shaft can be smoothly entered. Then, the distance between the first frame 2 and the second frame 3 is adjusted so that the first frame 2 and the second frame 3 are abutted on both sides. On the two inner walls of the elevator shaft, the first tension screw 72 of the first positioning assembly 7 and the second tension screw 82 of the second positioning assembly 8 respectively pass through the through holes reserved in the shaft wall, and the first nuts 73 at both ends of the first tension screw 72 respectively abut against the outer wall of the shaft wall and the wall surface of the first positioning frame 71, and the second nuts 83 at both ends of the second tension screw 82 respectively abut against the outer wall of the shaft wall and the wall surface of the second positioning frame 81, thereby stabilizing the first frame 2, the middle frame 1, and the second frame 3 forming the working platform in the elevator shaft. The operation is simple, convenient and fast, with good stability, and the bottom cast shaft wall is used as a support, which is not easy to fall and has high safety performance.

[0039] As a specific implementation, the first positioning frame 71 and the second positioning frame 81 are both trough frames with openings facing outward, and a channel steel 9 is nested in the trough frame. The length direction of the channel steel 9 extends along the front-to-back direction and is nested in multiple first positioning frames 71 and multiple second positioning frames 81. The upper outer end surface of the channel steel 9 abuts against the upper inner end surface of the trough frame, and the lower outer end surface of the channel steel 9 abuts against the side wall surface of the first pair of tie screws 72 and the second pair of tie screws 82. By embedding the channel steel 9 in the trough frame, the stability of the first pair of tie screws 72 and the second pair of tie screws 82 is increased, and it is not easy to deviate, thereby increasing the stability of the overall structure of the workbench.

[0040] The nested matching connection structure between the middle frame 1 and the first frame 2 and the second frame 3 is that the left and right sides of the middle frame 1 have limiting convex tubes 10 extending toward the first frame 2 and the second frame 3, and the right side of the first frame 2 and the left side of the second frame 3 are provided with limiting sleeves 11 for inserting the limiting convex tubes 10 on the left and right sides of the middle frame 1. The nested matching between the limiting convex tubes 10 and the limiting sleeves 11 between the middle frame 1 and the first frame 2 and the second frame 3 realizes the stability of the middle frame 1 and the first frame 2 and the second frame 3, and improves the integrity of the working platform formed by the middle frame 1 and the first frame 2 and the second frame 3.

[0041] In this embodiment, two symmetrically arranged support frames are provided on the first frame body 2 and the second frame body 3, which are the first support frame 12 and the second support frame 13 respectively. The first support frame 12 and the second support frame 13 each include two support rods 14 extending upward, and a cross-arranged reinforcement rod 27 is provided between the two support rods 14. A connecting rod 15 is connected between adjacent support rods 14, and a surface cover plate 16 is provided on the connecting rod 15. The surface cover plate 16 is provided with an opening, and a rotatably connected flip cover 17 is provided on the surface cover plate 16, and the flip cover 17 is used to open and cover the opening of the surface cover plate 16.

[0042] As a preferred embodiment, a panel 26 is laid on the first frame 2, the middle frame 1 and the second frame 3, and an inner template assembly is arranged around the periphery of the first frame 2, the middle frame 1 and the second frame 3. The inner template assembly includes a side template arranged around the periphery of the first frame 2, the middle frame 1 and the second frame 3, and a corner template 18 is arranged between adjacent side templates. An inclined mating surface is formed between the side template and the corner template 18, so that the side template can be separated from the adjacent corner templates 18. Specifically, the mating surface between the side template and the corner templates 18 on both sides thereof forms an inclined opening that gradually expands from the outside to the inside, so that the side template can be separated from the corner templates 18 on both sides.

[0043] Furthermore, the side formworks are respectively a first side formwork 19 and a second side formwork 20 which are arranged opposite to each other, and a third side formwork 21 and a fourth side formwork 22 which are arranged opposite to each other. The first side formwork 19 is respectively perpendicular to the third side formwork 21 and the fourth side formwork 22, and the second side formwork 20 is respectively perpendicular to the third side formwork 21 and the fourth side formwork 22. A supporting formwork mechanism is provided between the first side formwork 19 and the second side formwork 20 which are arranged opposite to each other, and between the third side formwork 21 and the fourth side formwork 22 which are arranged opposite to each other. The supporting formwork mechanism is used to adjust the distance between the first side formwork 19 and the second side formwork 20, and between the third side formwork 21 and the fourth side formwork 22.

[0044] The formwork mechanism between the first side formwork 19 and the second side formwork 20 includes a second adjusting main rod 23 vertically arranged between the first side formwork 19 and the second side formwork 20, and the two ends of the second adjusting main rod 23 are respectively provided with a first threaded portion and a second threaded portion with opposite thread directions, a first adjusting sleeve 24 is vertically installed on the first side formwork 19, and the inner tube wall of the first adjusting sleeve 24 has a first internal thread matching the first threaded portion, and a second adjusting sleeve 25 is vertically installed on the second side formwork 20, and the inner tube wall of the second adjusting sleeve 25 has a second internal thread matching the second threaded portion, and the first adjusting sleeve 24 is meshed and sleeved in the first internal thread of the first adjusting sleeve 24 and the second internal thread of the second adjusting sleeve 25 through the first threaded portion and the second threaded portion at its two ends.

[0045] The formwork mechanism between the third side formwork 21 and the fourth side formwork 22 has the same structure as the formwork mechanism between the first side formwork 19 and the second side formwork 20 .

[0046] This technical solution forms an inclined mating surface between the side formwork and the corner formwork 18 to facilitate the separation of the side formwork from the adjacent corner formworks 18, and adjusts the distance between the first side formwork 19 and the second side formwork 20, and between the third side formwork 21 and the fourth side formwork 22 by rotating the second adjustment main rod 23. This formwork support mechanism makes the distance between the relatively arranged first side formwork 19 and the second side formwork 20, and between the third side formwork 21 and the fourth side formwork 22 more stable and reliable, thereby improving the overall stability of the formwork. Due to the small operating space, the design of the diagonal brace is abandoned, and a horizontally supported formwork support mechanism is adopted, which has a simple structure and strong applicability.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An elevator shaft operating platform, characterized in that: It comprises a horizontally arranged middle frame, a first frame is arranged on one side of the middle frame, a second frame is arranged on the other side of the middle frame, the upper surfaces of the first frame, the second frame and the middle frame are located in the same horizontal plane, an adjustment mechanism for adjusting the distance between the first frame and the second frame is arranged between the first frame and the middle frame, and the first frame and the middle frame are nested and matched with each other; At least two groups of first positioning assemblies are arranged along the front-to-back direction on the left edge of the first frame, the first positioning assembly includes a first positioning frame and a first pair of tension screws passing through the first positioning frame, the length direction of the first pair of tension screws extends along the left-right direction, and both ends of the first pair of tension screws are screwed with first nuts; at least two groups of second positioning assemblies are arranged along the front-to-back direction on the right edge of the second frame, the second positioning assembly includes a second positioning frame and a second pair of tension screws passing through the second positioning frame, the length direction of the second pair of tension screws extends along the left-right direction, and both ends of the second pair of tension screws are screwed with second nuts; The first positioning frame and the second positioning frame are both trough frames with openings facing outwards, and channel steels are nested in the trough frames. The length direction of the channel steels extends in the front-to-back direction and is nested in a plurality of first positioning frames and a plurality of second positioning frames. The upper outer end surface of the channel steels abuts against the upper inner end surface of the trough frame, and the lower outer end surface of the channel steels abuts against the side wall surfaces of the first pair of tension screws and the second pair of tension screws. The adjustment mechanism includes a first adjustment main rod, a left expansion portion, and a right expansion portion. The left and right ends of the first adjustment main rod are respectively provided with a left threaded portion and a right threaded portion with opposite thread directions. The left expansion portion and the right expansion portion are respectively matched and mounted on the left threaded portion and the right threaded portion, and are synchronously moved horizontally outward to expand or horizontally inward to retract with the rotation of the first adjustment main rod, wherein the left expansion portion is located on the first frame, and the right expansion portion is located on the second frame.

2. The elevator shaft operating platform according to claim 1, characterized in that: The left expansion part includes a left expansion seat and a left adjusting tube installed on the left expansion seat, the inner tube wall of the left adjusting tube has an internal thread matching the left threaded portion of the first adjusting main rod, the right expansion part includes a right expansion seat and a right adjusting tube installed on the right expansion seat, the inner tube wall of the right adjusting tube has an internal thread matching the right threaded portion of the first adjusting main rod, the left adjusting tube and the right adjusting tube are meshingly sleeved on the left threaded portion and the right threaded portion of the first adjusting main rod.

3. The elevator shaft operating platform according to claim 1, characterized in that: The left and right sides of the middle frame body have limiting convex tubes extending toward the first frame body and the second frame body, and the right side of the first frame body and the left side of the second frame body are provided with limiting sleeves for inserting the limiting convex tubes on the left and right sides of the middle frame body.

4. The elevator shaft operating platform according to claim 3, characterized in that: Two symmetrically arranged support frames are arranged on the first frame body and the second frame body, namely the first support frame and the second support frame, each of the first support frame and the second support frame includes two support rods extending upward, a cross-arranged reinforcement rod is provided between the two support rods, connecting rods are connected between adjacent support rods, a surface cover plate is arranged on the connecting rod, an opening is arranged on the surface cover plate, a rotatably connected flap is arranged on the surface cover plate, and the flap is used to open and cover the opening of the surface cover plate.

5. The elevator shaft operating platform according to claim 4, characterized in that: An inner template assembly is arranged around the first frame, the middle frame and the second frame, and the inner template assembly includes side templates arranged around the first frame, the middle frame and the second frame, and corner templates are arranged between adjacent side templates, and an inclined mating surface is formed between the side templates and the corner templates to facilitate the side templates to be separated from adjacent corner templates.

6. The elevator shaft operating platform according to claim 5, characterized in that: The side formworks are respectively a first side formwork and a second side formwork arranged opposite to each other, and a third side formwork and a fourth side formwork arranged opposite to each other, the first side formwork is respectively perpendicular to the third side formwork and the fourth side formwork, the second side formwork is respectively perpendicular to the third side formwork and the fourth side formwork, and a formwork supporting mechanism for adjusting the distance between the first side formwork and the second side formwork, and between the third side formwork and the fourth side formwork is provided between the first side formwork and the second side formwork and between the third side formwork and the fourth side formwork.

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