CN110318531B

CN110318531B - Operation platform in elevator shaft

Info

Publication number: CN110318531B
Application number: CN201910710798.1A
Authority: CN
Inventors: 蒋正林; 袁大伟; 宋延海; 陈凯; 蔡梦菲
Original assignee: China Construction Fifth Engineering Bureau Co Ltd
Current assignee: China Construction Fifth Engineering Bureau Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2024-06-21
Anticipated expiration: 2039-08-01
Also published as: CN110318531A

Abstract

The application relates to the field of scaffolds in an elevator shaft, in particular to an operation platform in the elevator shaft. The embodiment of the application provides an elevator shaft inner operation platform which comprises a platform plate and a supporting frame, wherein the platform plate is fixed on the supporting frame and supported by the supporting frame, a plurality of jacking seats are arranged around the platform plate and are used for being abutted with the inner wall of a shaft of an elevator shaft. The application provides a platform plate with a support frame and a plurality of jacking brackets, wherein the jacking brackets are abutted against the inner wall of a well so that the platform plate can be clamped at any height position of the inner wall of the well, the support frame is used for bearing the platform plate to improve the strength and the load capacity of the platform plate, and the platform plate can be conveniently fixed in the inner wall of the well for construction operation by the elevator shaft inner operation platform provided by the application, so that the problem that a scaffold is inconvenient to build in the elevator shaft in the prior art is solved.

Description

Operation platform in elevator shaft

Technical Field

The application relates to the field of scaffolds in an elevator shaft, in particular to an operation platform in the elevator shaft.

Background

The elevator shaft is generally of a rectangular vertical shaft structure with three shear walls and one opening, and because the elevator shaft is of a special structure with a through length in the vertical direction and a narrower structure in the horizontal direction, a scaffold or a safety protection frame for construction operation must be erected in the elevator shaft. Due to the structural specificity, the scaffold and the protective frame in the elevator well can only be independently erected independently of other scaffolds of the building main body, and the elevator well has limited operation space, large vertical height difference, inconvenient fixation and large erection difficulty of the frame body in the well.

Disclosure of Invention

The application aims to provide an elevator shaft inner operation platform so as to solve the problem that a scaffold is inconvenient to build in an elevator shaft in the prior art.

Embodiments of the present application are implemented as follows:

The embodiment of the application provides an elevator shaft inner operation platform which comprises a platform plate and a supporting frame, wherein the platform plate is fixed on the supporting frame and supported by the supporting frame, a plurality of jacking seats are arranged around the platform plate and are used for being abutted with the inner wall of a shaft of an elevator shaft.

The application provides a platform plate with a support frame and a plurality of jacking brackets, wherein the jacking brackets are abutted against the inner wall of a well so that the platform plate can be clamped at any height position of the inner wall of the well, the support frame is used for bearing the platform plate to improve the strength and the load capacity of the platform plate, and the platform plate can be conveniently fixed in the inner wall of the well for construction operation by the elevator shaft inner operation platform provided by the application, so that the problem that a scaffold is inconvenient to build in the elevator shaft in the prior art is solved.

In one embodiment of the present application, optionally, each of the jacking includes a pallet, a screw, and a nut, the nut is fixed to the platform plate or the supporting frame, the screw is engaged with the nut, and the pallet is disposed at one end of the screw.

Through fixing the nut on platform board or support frame, the screw rod that one end had the layer board cooperates with this nut, and wherein the layer board outwards just is close to the well inner wall, rotates the screw rod and makes the screw rod stretch out can make layer board and well inner wall butt, stable in structure, easy operation, simple to operate.

In one embodiment of the present application, optionally, the platform board includes a board body and a board body frame fixed on a lower surface of the board body, and the plurality of jacking includes a first jacking, where the first jacking is disposed on the board body frame, and the first jacking is used for abutting against two inner walls of a hoistway opposite to the elevator hoistway.

The platform plate is arranged to comprise two parts, namely the plate body and the plate body frame, wherein the plate body frame is used for fixing the mounting plate body so as to strengthen the plate body and improve the bearing capacity of the platform plate. The first jacking sets up in the both sides that the plate body is close to two well inner walls that the elevator shaft is relative, and a plurality of first jacking butt elevator shaft is relative two well inner walls respectively in order to establish the plate body card in a certain high position of well, and under the effect of first jacking the landing board receives the holding power and the frictional force of two well inner walls that the elevator shaft is relative and fixes to overcome dead weight and load.

In one embodiment of the present application, optionally, the plate frame includes a first horizontal beam, and two ends of the first horizontal beam are respectively provided with the first jacking.

The first horizontal beam and the first jacking are integrally abutted between two opposite inner walls of the hoistway, and can be regarded as rod-shaped members, the force transmission path is simple, the force is mainly applied in the axial direction, and the axial compression resistance of the rod-shaped members is stronger than the lateral bending and shearing resistance of the rod-shaped members, so that the first jacking is not easy to damage; in addition, when the load, first jacking also can receive the bending shear force, and first jacking sets up the both ends at first horizontal beam, and the length of coincidence between first jacking and the first horizontal beam can set up longer to can strengthen the bending shear ability of first jacking, first jacking is difficult to damage.

In one embodiment of the present application, optionally, the supporting frame includes two opposite right triangle supporting members, each right triangle supporting member includes a second horizontal beam, an upright post and an inclined support connected in sequence, the upright post abuts against an inner wall of a hoistway where the opening of the elevator hoistway is located, the second horizontal beam is disposed at a bottom of the landing board, the plurality of jacking supports include a second jacking support, and the second jacking support is disposed on the second horizontal beam and is used for abutting against the inner wall of the hoistway opposite to the opening of the elevator hoistway.

Through setting up the support frame into two right triangle support pieces that set up relatively to set up the second jacking on its second horizontal beam, when the platform board was fixed at the well inner wall, the second jacking butt was on the well inner wall that the opening is relative, and the stand supports and leans on the well inner wall at opening place, and the stand card is about the opening or wholly supports and leans on the well inner wall, only needs to make the second jacking stretch out just can make the second jacking establish the platform board card in a certain high position department of elevator shaft with the stand cooperation. In addition, when the right triangle support piece receives upper load, the lower part atress direction of right triangle support piece is towards the well inner wall of elevator shaft open-ended, the upper portion atress direction of right triangle support piece is towards the relative well inner wall of opening of elevator shaft, thereby when the load, effort between right triangle support piece and the well inner wall increases, frictional force increases, and effort between second jacking and the well inner wall increases, frictional force increases, when having played the load on the platform board and having increased, the effect that the support frame resists gliding power also increases, operating platform's stability has been improved.

In one embodiment of the application, optionally the right triangle support is provided with a dowel bar for resting on an adjoining building structure at the opening of the elevator hoistway.

By arranging the dowel bar, the dowel bar can be used for being placed on a building structural member adjacent to the opening of the elevator shaft, for example, a floor slab adjacent to the opening of the elevator shaft, and under the action of the dowel bar, the right-angled triangular support piece receives upward supporting force transmitted by the floor slab, so that the platform plate is prevented from sliding downwards, and the load capacity of the platform plate is improved.

In one embodiment of the present application, optionally, the right triangle support comprises an abdomen support bar connecting a right angle position of the right triangle support with a middle position of the diagonal support.

Through set up the belly bracing piece of connection right angle point and diagonal brace on right angle triangle support piece, improve right angle triangle support piece's overall stability.

In one embodiment of the application, optionally, the support frame comprises a reinforcing bar connecting two of the right triangle supports.

Through setting up the stiffener with two right angled triangle support piece connection as an organic wholely, improve the overall rigidity of support frame, make the support frame more stable.

In one embodiment of the application, optionally, the support frame comprises a plurality of additional diagonal braces connecting the right triangle support and the platform plate.

By arranging the additional diagonal braces to support the two sides of the support frame, the support capacity of the support frame is improved, the whole compressive resistance of the platform plate is more balanced, and the weak points of the platform plate are reduced.

In one embodiment of the present application, optionally, a hook is provided on the platform plate.

Through set up the lifting hook on the platform board, conveniently hoist and mount operation platform through lifting device in elevator well top.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of an operation platform according to an embodiment of the present application;

fig. 2 is a schematic top view of an operating platform provided in an embodiment of the present application when installed in an elevator hoistway;

Fig. 3 is a schematic side cross-sectional view of an operating platform provided in an embodiment of the present application installed in an elevator hoistway;

fig. 4 is a schematic structural diagram of a jacking provided in an embodiment of the present application;

Fig. 5 is a schematic perspective view of a connection structure between a first jacking and a first horizontal beam according to an embodiment of the present application;

Fig. 6 is a schematic perspective view of a connection structure between a second jacking and a second horizontal beam according to an embodiment of the present application.

Icon: 100-a platform plate; 110-plate body; 120-plate body frame; 121-a first horizontal beam; 130-first jacking; 140-lifting hooks; 200-supporting frames; 210-right triangle support; 211-a second horizontal beam; 212-stand columns; 213-diagonal support; 214-a dowel bar; 215-abdomen support bar; 216-reinforcing bars; 217-additional diagonal braces; 220-second jacking; 300-jacking; 310-supporting plate; 320-screw; 330-nut; 400-floor slab.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship conventionally put in use of the product of the application, it is merely for convenience of describing the present application and simplifying the description, and it does not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Examples

Because the three-sided enclosure of elevator shaft, one side open-ended structure, the construction scaffold in the elevator shaft generally need independently build independent of other scaffolds of building, and the well inner wall of elevator shaft is smooth and does not have other outstanding structures, and the well is the narrow structure in the horizontal direction of leading to long in the vertical direction moreover, and vertical difference in height is big and the operating space is limited, and it is very inconvenient to build fixed scaffold in this kind of structure.

The embodiment of the application provides an operation platform in elevator shaft for solve the inconvenient problem of building the scaffold in the elevator shaft among the prior art.

The operation platform comprises a platform plate 100 and a supporting frame 200, and referring to fig. 1, fig. 1 shows a schematic perspective view of the operation platform. The platform plate 100 is fixed to the supporting frame 200 and supported by the supporting frame 200, and a plurality of jacking members 300 are provided around the platform plate 100, and the jacking members 300 are adapted to abut against the inner wall of the hoistway of the elevator hoistway.

The size of the platform plate 100 provided by the embodiment is smaller than the cross-sectional size of the elevator shaft, a space is reserved between the platform plate 100 and the inner wall of the elevator shaft, so that the platform plate 100 can be conveniently moved into the elevator shaft, the platform plate 100 can move up and down along the elevator shaft and can be abutted against the inner wall of the elevator shaft through the plurality of jacking brackets 300, the platform plate 100 can be clamped at any height position of the inner wall of the elevator shaft, and the supporting frame 200 is used for supporting the platform plate 100 so as to improve the strength and the load capacity of the platform plate 100.

In this embodiment, alternatively, the distance between each side of the platform plate 100 and the inner wall of the elevator shaft is set to be 100mm, so that the neutral space of the operation platform in the elevator shaft is 100mm wide, which is convenient for the transportation and movement of the platform plate 100, and has high operation safety, and the operation personnel is not easy to step on the space, and the limbs are not easy to be clamped at the distance position.

In order to facilitate the lifting of the operation platform by the lifting device, the lifting hooks 140 are arranged on the platform plate 100, the plurality of lifting hooks 140 are arranged on the platform plate 100, and the plurality of lifting hooks 140 are symmetrically arranged so that the platform plate 100 can be kept horizontal during lifting. As shown in fig. 1, the four corners of the rectangular platform plate 100 are respectively provided with hooks 140.

The elevator shaft inner operation platform provided by the embodiment can conveniently fix the platform plate 100 in the inner wall of the well for construction operation, and solves the problem that the elevator shaft inner operation platform is inconvenient to construct a scaffold in the prior art.

Referring to fig. 4, fig. 4 shows a schematic perspective view of a jacking 300, wherein the jacking 300 comprises a supporting plate 310, a screw 320 and a nut 330, wherein the supporting plate 310 is arranged at one end of the screw 320, and the other end of the screw 320 extends into the nut 330 and is in threaded fit with the nut 330. The nut 330 is fixed at the bottom of the platform plate 100 or on the supporting frame 200, and the supporting plate 310 can move towards the inner wall of the elevator shaft by rotating the screw 320 so that the supporting plate 310 is abutted against the inner wall of the elevator shaft.

Referring to fig. 1 and 2, it can be seen that the platform plate 100 includes a plate body 110 and a plate body frame 120, the plate body frame 120 has a rectangular shape as a whole, and the platform plate 100 is mounted on the rectangular plate body frame 120. By providing the plate body frame 120 to mount the plate body 110, the load-bearing capacity of the plate body 110 is enhanced. The aforementioned hooks pass through the platform plate 100 and are fixedly connected with the plate body frame 120.

The plate body frame 120 comprises a first horizontal beam 121, two ends of the first horizontal beam 121 point to two opposite shaft inner walls of the elevator shaft respectively, two ends of the first horizontal beam 121 are provided with a first jacking 130 respectively, the first jacking 130 is abutted on the two opposite shaft inner walls of the elevator shaft, and the plate 100 is supported and fixed by supporting force and friction force of the two opposite shaft inner walls of the elevator shaft under the action of the first jacking 130 so as to overcome dead weight and load.

The first horizontal beam 121 and the first jacking 130 are integrally abutted between two opposite hoistway inner walls of the elevator hoistway, and fig. 5 shows a schematic connection structure of the first horizontal beam 121 and the first jacking 130. The first horizontal beam 121 and the first jacking 130 may be integrally regarded as a rod-shaped member, and the force transmission path is simple, and the force is mainly applied in the axial direction. For the rod-shaped member, the axial compression resistance is stronger than the lateral bending shearing resistance, so that the first jacking 130 is not easy to damage.

Optionally, a plurality of nuts 330 of the first jacking 130 are provided, and the plurality of nuts 330 are uniformly fixed at two ends of the first horizontal beam 121. Alternatively, the pitch of the plurality of nuts 330 is set to 50mm.

Optionally, the first horizontal beam 121 is made of a channel steel, the first jacking 130 is disposed inside a notch of the channel steel, and the rotating screw 320 can enable the supporting plate 310 to be attached to an end portion of the channel steel, so that the first jacking 130 is folded on a side surface of the plate body frame 120, and the platform plate 100 is convenient to move and transport. The channel steel can be used for supporting upper pressure, is convenient for welding the nuts 330 and installing the screws 320, is convenient for use and observe the connection condition of the first jacking 130 and the first horizontal beam 121, is timely maintained, and improves safety.

As shown in fig. 2, the first horizontal beam 121 includes two bars constituting a rectangle. Alternatively, the first jacking members 130 are arranged in pairs, and each pair of first jacking members 130 is disposed at both ends of one first horizontal beam 121. Alternatively, the first jacking 130 may be disposed at both ends of each of the first horizontal beams 121, and the first jacking 130 may be disposed at both ends of any number of the first horizontal beams 121.

The structure of the support frame 200 is shown in fig. 1 and 3, and includes two opposite right triangle support members 210, wherein the two right triangle support members 210 are connected into a whole by a transverse reinforcing rod 216, so that the overall rigidity of the support frame 200 is improved, and the support frame 200 is more stable.

The right triangle support 210 includes a second horizontal beam 211, an upright 212, and an angled support 213. The second horizontal beam 211 is arranged at the bottom of the platform plate 100, and two ends of the second horizontal beam 211 point to one surface of the elevator shaft where the opening is positioned and the inner wall of the shaft opposite to the opening; the upright post 212 is vertically arranged, the upright post 212 is abutted against the inner wall of a hoistway where the opening of the elevator hoistway is located, the upright post 212 is clamped at the upper and lower positions of the opening, or integrally abutted against the inner wall of the hoistway where the opening is located, and the top end of the upright post 212 is connected with the second horizontal beam 211; an inclined support 213 is connected between an end of the second horizontal beam 211 remote from the opening and a bottom end of the upright 212 for supporting the second horizontal beam 211.

The end of the second horizontal beam 211 away from the opening (i.e., the end near the inner wall of the hoistway opposite to the opening) is provided with a second jacking 220, and the second jacking 220 is used for abutting against the inner wall of the hoistway opposite to the opening. So that the upright post 212 cooperates with the second jacking 220 to fixedly clamp the landing plate 100 at any height position of the elevator shaft.

In this embodiment, the first jacking 130 and the second jacking 220 have the same structure, and are the jacking 300 shown in fig. 4, and the first and second jacking are merely for convenience of description and are not meant to imply that the structures are different. In another embodiment, the second jacking 220 may be provided according to the need, and the construction of the second jacking 130 may be different from that of the first jacking 130, so long as the second jacking is abutted against the inner wall of the hoistway of the elevator hoistway to fix the landing board 100 within the scope of the idea of the present application.

Alternatively, as shown in fig. 6, a plurality of nuts 330 of the second jacking 220 are provided, and the plurality of nuts 330 are uniformly fixed at both ends of the second horizontal beam 211. Alternatively, the interval between adjacent two nuts 330 is set to 50mm.

Alternatively, as shown in fig. 6, the second horizontal beam 211 is made of a channel steel, the second jacking 220 is located at one end of the channel steel and is disposed at the inner side of a notch of the channel steel, and the rotating screw 320 can enable the supporting plate 310 to be attached to the end of the channel steel, so that the second jacking 220 draws in the end of the second horizontal beam 211, and the transportation platform plate 100 is convenient to move. The channel steel can be used for supporting upper pressure, is convenient for welding the nuts 330 and installing the screws 320, is convenient for use and observe the connection condition of the second jacking 220 and the second horizontal beam 211, is timely maintained, and improves safety.

The plurality of first jacking 130 is forced in one horizontal direction to fix the landing plate 100, and the second jacking 220 and the upright 212 are forced in the other horizontal direction to fix the landing plate 100, and by providing the first jacking 130, the second jacking 220 and the upright 212, the landing plate 100 can be stably fixed at any height position of the elevator shaft.

When the right triangle support 210 receives an upper load, the lower stress direction of the column 212 faces the inner wall of the hoistway where the elevator hoistway is open, and the upper stress direction of the column 212 faces the inner wall of the hoistway where the elevator hoistway is open. When the platform plate 100 is loaded, the acting force and friction between the lower portion of the upright post 212 and the inner wall of the hoistway are increased, and the force applied to the second jacking 220 by the upper portion of the upright post 212 through the second horizontal beam 211 and directed to the inner wall of the hoistway are increased, so that the acting force and friction between the second jacking 220 and the inner wall of the hoistway are increased. Thus, as the load on the platform plate 100 increases, the force of the support frame 200 against the slip-down increases, improving the stability of the operating platform.

To enhance the stability of the right triangle support 210, optionally, an abdomen support bar 215 is provided on the right triangle support 210, and the abdomen support bar 215 connects the position of the right angle point of the right triangle support 210 and the middle position of the diagonal support 213, as shown in fig. 3.

In order to improve the supporting capability of the supporting frame 200, make the whole compressive resistance of the platform plate 100 more balanced, reduce the weak points of the platform plate 100, a plurality of additional diagonal braces 217 are arranged on the supporting frame 200, and the plurality of additional diagonal braces 217 are connected with the right triangle supporting member 210 and the platform plate 100. As shown in fig. 1, the additional diagonal braces 217 include a plurality of diagonal braces 217 symmetrically disposed, and one end of the additional diagonal brace 217 is connected to the diagonal brace 213 and the other end is connected to the web frame 120, or one end of the additional diagonal brace 217 is connected to the abdomen support bar 215 and the other end is connected to the web frame 120.

Optionally, a dowel bar 214 is provided on the right triangle support 210, the dowel bar 214 being connected to the column 212 and extending horizontally towards the opening of the elevator hoistway. The dowel 214 is intended to rest on a building element adjacent to the opening of the elevator hoistway. The building elements adjacent to the opening of the elevator hoistway are e.g. beams in an overhead position or floors 400 at the opening of the elevator hoistway.

As shown in fig. 3, the two ends of the upright 212 are abutted against the inner walls of the hoistway above and below the opening, and the dowel 214 rests on the floor 400 adjacent to the opening of the hoistway. Under the action of the dowel bar 214, the right triangle support 210 receives upward supporting force from the floor 400 to prevent the platform plate 100 from sliding down and to increase the load capacity of the platform plate 100.

Optionally, a dowel 214 is slidably disposed along the upright 212, and the dowel 214 can be fixed relative to the upright 212 to facilitate adjusting the position of the dowel 214 according to the position of the building element. For example by a clip connection or by providing a plurality of through holes in the upright 212 in the axial direction which allow the insertion of the dowel 214.

In this embodiment:

the plate body 110 is made of a steel plate with the thickness of 3mm, the plate body frame 120 is formed by welding No. 10 channel steel, and the lifting hook 140 is made of 24-number round steel;

In the supporting frame 200, the second horizontal beam 211, the abdomen supporting rod 215 and the reinforcing rod 216 adopt No. 10 channel steel, the upright post 212, the inclined supporting rod 213 and the dowel bar 214 adopt No. 12.6 channel steel, and the additional inclined supporting rod 217 adopts No. 20 screw steel;

In the jacking 300, the screw 320 and the nut 330 are matched screws 320 and nuts 330 of M20 bolts, the screw 320 is 300mm long, the nuts 330 are arranged in a plurality, the supporting plate 310 is an iron plate with the thickness of 10mm and the size of 100mm multiplied by 100mm, the supporting plate 310 is welded with the screw 320, the nuts 330 are welded in the notch of the No. 10 channel steel, the distance between the nuts 330 is 50mm, and the distance between one nut 330 closest to the supporting plate 310 and the end part of the channel steel is 50mm.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The elevator shaft inner operation platform is characterized by comprising a platform plate and a supporting frame, wherein the platform plate is fixed on the supporting frame and supported by the supporting frame, a plurality of jacking seats are arranged around the platform plate and are used for being abutted with the inner wall of a shaft of the elevator shaft, and the jacking seats comprise a first jacking seat and a second jacking seat;

the platform plate comprises a plate body and a plate body frame fixed on the lower surface of the plate body, wherein the plate body frame comprises a first horizontal beam, the first horizontal beam is made of channel steel, a first jacking is arranged on the first horizontal beam and is arranged on the inner side of a notch of the channel steel, and the first jacking is used for being abutted with two inner walls of a hoistway opposite to the elevator hoistway;

The supporting frame comprises two right triangle supporting pieces which are oppositely arranged, each right triangle supporting piece comprises a second horizontal beam, an upright post and an inclined support which are sequentially connected, the upright post is abutted against the inner wall of a hoistway where an opening of the elevator hoistway is located, and the second horizontal beam is arranged at the bottom of the platform plate;

the second horizontal beam is made of channel steel, the second jacking is arranged on the second horizontal beam and arranged on the inner side of a notch of the channel steel, and the second jacking is used for abutting against the inner wall of a well opposite to the opening of the elevator well;

each jacking comprises a supporting plate, a screw rod and a nut, wherein the nut is fixed on the first horizontal beam or the second horizontal beam, the screw rod is matched with the nut, and the supporting plate is arranged at one end of the screw rod.

2. An elevator hoistway inner operating platform according to claim 1, wherein the right triangle support is provided with a dowel bar for resting on a building structure adjacent to the hoistway opening.

3. The elevator hoistway inner operation platform of claim 1, wherein the right triangle support includes an abdomen support bar connecting a right angle position of the right triangle support with a middle position of the diagonal support.

4. The in-hoistway operating platform of claim 1, wherein the support frame includes a stiffener that connects two of the right triangle supports.

5. The in-hoistway operating platform of claim 1, wherein the support frame includes a plurality of additional diagonal braces connecting the right triangle support and the landing plate.

6. The elevator shaft inner operating platform of claim 1, wherein the platform plate is provided with hooks.