An elevator shaft form lifting device and method of use

Abstract

The application relates to the field of building auxiliary equipment, and particularly discloses an elevator shaft formwork lifting device and a use method. The elevator shaft formwork lifting device comprises a support part, an operation platform and a guide column group. The support part comprises a guide column group support and a formwork cylinder support for mounting a formwork cylinder, and the formwork cylinder support is provided with an operation through hole; the guide column group is vertically arranged on the guide column group support and comprises a plurality of guide columns; the formwork cylinder support and the operation platform are movably connected to the guide column group along the plurality of guide columns through respective lifters, and the lifters of the two are not interfered with each other; and a passing gap is arranged between the operation through hole and the outer contour of the moving area of the operation platform. The device provides a larger operation space for construction personnel, and facilitates the construction personnel to perform corresponding equipment installation, pouring condition detection, pouring condition inspection, pouring result inspection, repair and other operations in the whole pouring construction process of the elevator shaft.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building auxiliary equipment, in particular to an elevator shaft formwork lifting device and a use method thereof. BACKGROUND

[0002] In the field of building, most buildings are high-rise buildings, and setting up elevators has become a common phenomenon. Elevators need to use elevator shafts for accommodation, and elevator shafts are composed of cylinder type cast-in-place shear walls. During the pouring of the elevator shaft, a construction platform needs to be set up multiple times inside the shaft. The construction platform is composed of steel bars, and construction personnel need to complete construction operations such as steel bars, pouring formworks, and concrete on the construction platform, which is prone to operation platform instability and construction personnel falling accidents.

[0003] The patent with the application number 201810026538.8 discloses an elevator shaft formwork collecting and releasing system, which can rely on its own action to complete overall climbing, the operation environment of the construction personnel is greatly improved, the operation range is adjustable, and the safety is good. However, the movable range of the operation platform in the invention is greatly limited. During the pouring of the elevator shaft, the construction personnel cannot observe whether the bottom of the elevator shaft formwork leaks by changing the position of the operation platform; after the pouring of the elevator shaft is completed, the construction personnel cannot repair the wall surface of the elevator shaft which has been poured. SUMMARY

[0004] The present application provides an elevator shaft formwork lifting device and a use method, which aims to provide a larger operation space for construction personnel, and facilitate the construction personnel to perform corresponding equipment installation, pouring condition detection, pouring condition inspection, pouring result inspection, repair, and other operations during the entire pouring construction process of the elevator shaft.

[0005] The present application is achieved by the following technical solutions.

[0006] An elevator shaft formwork lifting device, characterized in that it comprises a support part, an operation platform, and a guide column group:

[0007] The support part comprises a guide column group support and an inner formwork cylinder support for installing an inner formwork cylinder, and an operation through hole is formed in the inner formwork cylinder support;

[0008] The guide column group is arranged on the guide column group support, the guide column group comprises a plurality of vertically arranged guide columns, the inner formwork cylinder support and the operation platform are movably connected to the guide column group along the plurality of guide columns through a first lifter and a second lifter respectively, and the first lifter and the second lifter do not interfere with each other;

[0009] The operation through hole and the outer contour of the operation platform moving area are provided with a passing gap; the passing gap refers to a margin gap that can allow the operation platform to pass through the operation through hole to move up and down.

[0010] In one aspect, the structure of the elevator shaft inner mold lifting device in the application is beneficial to the pouring and construction of the elevator shaft. In the actual pouring process, after the elevator shaft of the corresponding floor is poured, the inner mold cylinder and the inner mold cylinder support need to be lifted. After lifting, the bottom of the inner mold plate should be lower than the top surface of the completed elevator shaft, that is, the part of the inner mold plate after the outer expansion of the inner mold cylinder should be in contact with the inner wall of the completed elevator shaft, limiting the expansion range of the inner mold cylinder, so that the sizes of the elevator shaft inner molds of the upper and lower floors are consistent. However, if there is a gap between the inner mold plate and the inner wall of the completed elevator shaft, the elevator shaft pouring process of this floor is prone to slurry leakage and other conditions.

[0011] In the technical solution in the application, the moving area of the operation platform and the moving area of the inner mold cylinder support do not interfere with each other, and the construction personnel can control the operation platform to descend below the inner mold cylinder support to check whether there is a gap between the inner mold plate and the inner wall of the elevator shaft, so as to prevent slurry leakage and other conditions during pouring; at the same time, after pouring is completed and the inner mold cylinder support is lifted, the position of the operation platform can also be adjusted to observe whether the inner wall of the poured elevator shaft meets the standard, and if not, repair work can be carried out in time. If the relevant conditions meet the standard, the installation of the elevator guide rail can be directly carried out, and the overall construction speed of the elevator shaft can be accelerated.

[0012] On the other hand, the structure of the elevator shaft inner mold lifting device in the application is beneficial to the maintenance and repair of the elevator shaft inner mold lifting device in daily use and the safety protection of the construction personnel.

[0013] The lifters of the inner mold cylinder support and the operation platform do not interfere with each other, and if the lifters of the inner mold cylinder support and the like have problems such as failure, on the one hand, the position of the operation platform can be adjusted to facilitate the maintenance and repair of the corresponding lifters by the construction personnel, and on the other hand, the smooth lifting of the operation platform can be ensured to facilitate the safe evacuation of the construction personnel.

[0014] The adjustable devices including the first lifter, the second lifter and the like in the application all work through the control device, and the control device can be unified as one.

[0015] As a further improvement of the application, a plurality of guide columns are uniformly arranged on the guide column group support. The uniformly arranged guide columns can bring more stable support effect to the operation platform and the inner mold cylinder support, and provide a more stable operation environment for the construction personnel.

[0016] As a further improvement of the present application, a first guide rail and a second guide rail are respectively arranged on the side of the guide column away from and close to the center of the guide column group support, and the first guide rail and the second guide rail are respectively matched with the first lifter and the second lifter to realize the lifting operation.

[0017] The two guide rails are separated from each other and are used for guiding different lifters, so that the moving areas of the operation platform and the inner mold cylinder support are completely independent of each other, and meanwhile, in order to match the corresponding guide rails, a plurality of lifters are respectively arranged on the operation platform and the inner mold cylinder support to realize lifting, if 1-2 lifters fail, the remaining lifters can be used as backup lifters to ensure the basic lifting function of the platform, facilitate the maintenance and repair of the remaining lifters by the construction personnel, and also ensure the safety of the construction personnel to a certain extent.

[0018] As a further improvement of the present application, a horizontal detection device is arranged on the inner mold cylinder support and the operation platform to detect whether the bearing surface of the inner mold cylinder support and the operation platform is in a horizontal state. The horizontal detection device is connected with the control device to provide the horizontal state data of the corresponding platform for the control device, and the construction personnel can read the relevant information and then start the lifters on the corresponding platform through the control device to adjust the horizontal state of the platform.

[0019] As a further improvement of the present application, mounting elements for fixedly mounting supports are arranged on the bearing surface of the operation platform and the inner wall of the inner mold cylinder, the supports are rigid rod structures, and after mounting, the supports can realize the support and fixation of the inner mold cylinder. During the pouring of the elevator shaft, when the concrete is poured into the mold, the inner mold plate in the inner mold cylinder may be unstable, which finally leads to the inclination, movement or collapse of the inner mold plate, resulting in serious accidents in the pouring of the elevator shaft. The mounting elements prearranged on the inner wall of the inner mold cylinder and the operation platform can facilitate the construction personnel to fix and mount the supports after adjusting the position of the operation platform, when the operation platform does not move, after the mounting of the rigid rod structure supports is completed, the operation platform can provide support and fixation effect for the inner mold plate through the supports, prevent the inclination, movement or collapse of the inner mold plate, and prevent the occurrence of problems such as slurry leakage.

[0020] As a further improvement of the present application, an extension plate is hinged around the operation platform. When the operation platform needs to pass through the inner mold cylinder support during the lifting process, the extension plate can be retracted through the hinge structure, so that the operation platform can pass through smoothly, and when the lifting of the operation platform is completed and the construction personnel need to perform construction on the inner wall of the elevator shaft, the extension plate can be put down to expand the area of the operation platform, so that the construction personnel can approach the position to be constructed to perform corresponding operation.

[0021] A method for using the elevator shaft inner formwork lifting device, characterized in that it comprises the following steps:

[0022] S1. Hoisting the elevator shaft inner formwork lifting device to the elevator shaft construction site and fixing the elevator shaft inner formwork lifting device;

[0023] S2. Hoisting the inner formwork cylinder to the position of the inner formwork cylinder support;

[0024] S3. Adjusting the relative positions of the operating platform and the inner formwork cylinder support, when the operating platform is lowered below the inner formwork cylinder support, facilitating the work of the construction personnel including the installation of the inner formwork cylinder, the installation condition inspection, and when the operating platform is raised above the inner formwork cylinder support, facilitating the work of the construction personnel including the structural adjustment of the inner formwork cylinder;

[0025] S4. Brushing the release agent to the surface of the inner formwork plate and keeping it from flowing;

[0026] S5. Adjusting the inner formwork cylinder to the outward expansion state;

[0027] S6. Building the remaining elevator shaft pouring mold and reinforcing, pouring in the concrete to carry out the elevator shaft pouring work;

[0028] S7. When the concrete reaches the demolding strength, removing the remaining elevator shaft pouring mold, and adjusting the inner formwork cylinder to the contraction state;

[0029] Wherein, the remaining elevator shaft pouring mold includes the elevator shaft outer formwork, wall screw, and other components used to form the whole elevator shaft mold except the elevator shaft inner formwork;

[0030] S8. Lifting the inner formwork cylinder support until the corresponding positioning groove on the inner wall of the elevator shaft and fixing;

[0031] S9. Lifting the guide column group support until the corresponding positioning groove on the inner wall of the elevator shaft and fixing;

[0032] S10. Cleaning the inner formwork plate;

[0033] S11. Repeating steps S4-S10 to complete the pouring work of each layer of the elevator shaft.

[0034] As a further improvement of the present application, in the method for using, the horizontal state of the supporting surface of the inner formwork cylinder support and / or the operating platform is detected by a horizontal detection device, and if the corresponding supporting surface is not in a horizontal state, the corresponding supporting surface is leveled by a corresponding lifter.

[0035] As a further improvement of the present application, in S6~S7 and between S8 and S9, the second lifter can be started by the control device to lift the operation platform to perform one or more operations including fixing and removing the wall screw before pouring, checking the leakage condition during pouring, processing and repairing the inner wall of the elevator shaft after pouring.

[0036] As a further improvement of the present application, the operation platform is hinged with an extension plate, which can be unfolded to expand the operation space of the operation platform when the operation platform is not in the same plane as the inner mold cylinder support.

[0037] The beneficial effects of the present application include:

[0038] (1) The operation platform has a large lifting range, and the construction personnel can adjust the position of the operation platform as needed during the pouring of the elevator shaft to check the adhesion of the inner mold plate, observe the leakage condition, and repair the inner wall of the elevator shaft.

[0039] (2) The same platform or support is controlled by multiple lifters, which facilitates the adjustment of the horizontal state of the bearing surface of the platform or support, and the lifters serve as backup lifters to ensure construction safety.

[0040] (3) Associated with subsequent elevator-related construction such as guide rail installation, the overall process of elevator installation is accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0041] The preferred embodiments of the present application will be described in detail below with the help of the accompanying drawings to help understand the purpose and advantages of the present application, in which:

[0042] Figure 1 is a front view of the elevator shaft inner mold lifting device;

[0043] Figure 2 is a top view of the elevator shaft inner mold lifting device;

[0044] Figure 3 is a schematic view of the extension plate and support structure;

[0045] Figure 4 is a schematic view of the inner mold cylinder structure.

[0046] 1 support part, 101 guide column group support, 102 inner mold cylinder support, 102a operation through hole, 102b passing gap, 103 first lifter;

[0047] 2 operation platform, 201 second lifter, 202 extension plate;

[0048] 3 guide column group, 301 guide column, 301a first guide rail, 301b second guide rail;

[0049] 4 support components, 401 mounting elements;

[0050] 5. Support claw arm;

[0051] A inner mold cylinder, A01 inner template, A02 corner post, A03 embedded box. Detailed Implementation

[0052] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0053] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0054] An elevator shaft internal formwork lifting device, the overall structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a support unit 1, an operating platform 2, and a guide column assembly 3.

[0055] The support unit 1 includes a guide column assembly support 101 and an inner mold cylinder support 102. The guide column assembly 3 is vertically mounted on the guide column assembly support 101, and the inner mold cylinder A is mounted on the inner mold cylinder support 102. The guide column assembly 3 is composed of multiple guide columns 301. The inner mold cylinder support 102 and the operating platform 2 are movably connected to the guide column assembly 3 through their own first lifter 103 and second lifter 201.

[0056] The inner mold cylinder support 102 has an operating through hole 102a in the middle, which allows the operating platform 2 to pass through. A passage gap 102b is provided between the moving area of ​​the operating platform 2 and the operating through hole 102a. The first lifter 103 and the second lifter 201 do not interfere with each other. Therefore, the lifting and lowering areas of the operating platform 2 and the inner mold cylinder support 102 do not affect each other. The operating platform 2 can directly pass through the inner mold cylinder support 102 for lifting and lowering. Construction personnel can adjust the relative positions of the operating platform 2 and the inner mold cylinder support 102 according to the actual needs during the construction process to carry out corresponding construction work.

[0057] For example, before the pouring construction, the construction personnel can install and expand the inner mold cylinder A, fix and remove the wall screw, and so on through the lifting operation platform 2 in a more easily operated and observed position; during the pouring construction, the operation platform 2 can be lowered to be lower than the bottom of the inner mold cylinder support 102 to facilitate the construction personnel to observe whether the construction accident such as slurry leakage occurs, and the like, and timely remedial measures can be taken if the accident occurs; after the pouring construction, the operation platform 2 can be lowered to be lower than the bottom of the inner mold cylinder support 102 to observe the inner wall state of the elevator shaft and perform corresponding processing or repair work, and the like.

[0058] Preferably, as shown in Figure 2 The plurality of guide columns 301 are uniformly arranged on the guide column group support 101 to provide more stable support effect for the operation platform 2 and the inner mold cylinder support 102.

[0059] Preferably, as shown in Figure 2 The plurality of guide columns 301 are uniformly arranged on the guide column group support 101 to provide more stable support effect for the operation platform 2 and the inner mold cylinder support 102.

[0060] In order to cooperate with the corresponding guide rails, the operation platform 2 and the inner mold cylinder support 102 are each equipped with a corresponding number of lifters, and the lifters can be used as backup lifters. In the case that part of the lifters are damaged, the basic lifting and moving functions of the operation platform 2 and the inner mold cylinder support 102 are guaranteed, the position of the operation platform 2 can be adjusted by the construction personnel, the first lifter 103 on the inner mold cylinder support 102 can be maintained and repaired, or the operation platform 2 can be lifted to facilitate the construction personnel to quickly evacuate.

[0061] Preferably, the inner mold cylinder support 102 and the operation platform 2 are provided with a horizontal detection device for detecting the horizontal state of the bearing surface of the inner mold cylinder support 102 and the operation platform 2. The horizontal detection device includes but is not limited to at least one of a horizontal bubble instrument, a laser level, an electronic level, and the like for detecting whether an object is in a horizontal state. The horizontal state of the bearing surface of the inner mold cylinder support 102 will directly affect whether the inner mold cylinder A is in a horizontal state, thereby affecting whether the poured elevator shaft is vertical; the operation platform 2 in a horizontal state can facilitate the construction personnel to perform related work, and therefore the bearing surface of the inner mold cylinder support 102 and the operation platform 2 needs to be in a horizontal state by reading the related data of the horizontal detection device and starting the corresponding lifter.

[0062] Preferably, as shown in Figure 3 The operating platform 2 and the inner wall of the inner mold cylinder A are respectively provided with mounting elements 401. The construction personnel can lift the operating platform 2 to the specified position through the control device, and then install and fix the support 4 of the rigid rod-shaped structure through the mounting elements 401, so as to support and fix the inner formwork A01 in the inner mold cylinder A, prevent the inner formwork A01 from collapsing and moving, and cause accidents such as slurry leakage. The fixed installation mode of the support 4 includes at least one of the detachable fixed installation modes such as bolt and nut fixed installation and screw fixed installation.

[0063] Preferably, as shown in Figure 3 The operating platform 2 is hingedly connected with an extension plate 202. When the inner mold cylinder support 102 and the supporting surface of the operating platform 2 are located in the same plane, the extension plate 202 is retracted, so as to avoid the conflict between the operating platform 2 and the inner mold cylinder support 102, so that the operating platform 2 cannot smoothly pass through the operation through hole 102a on the inner mold cylinder support 102; when the inner mold cylinder support 102 and the operating platform 2 are not located in the same plane, the extension plate 202 can be unfolded, so as to increase the supporting surface of the operating platform 2, and the construction personnel can be closer to the inner wall of the elevator shaft or the inner wall of the inner mold cylinder A, thereby facilitating the corresponding operation of the construction personnel.

[0064] A use method of the elevator shaft inner mold lifting device, comprising the following steps:

[0065] S1. A positioning groove matching the position and size of the support claw arm 5 is pre-set on the shear wall around the elevator shaft, for positioning and accommodating the support claw arm 5. By changing the extended and folded state of the support claw arm 5, the guide column group support 101 or the inner mold cylinder support 102 can be in a fixed state or a movable state; the elevator shaft inner mold lifting device is lifted to the corresponding position by using a crane, and then the control device is started to adjust and keep the support claw arm 5 in the extended state, and the crane lifting is released, so as to realize the fixation of the elevator shaft inner mold lifting device;

[0066] S2. The inner formwork A01 and the corner column A02 are connected and combined, as shown in Figure 4 The overall assembly of the inner mold cylinder A is completed, the inner mold cylinder A as a whole is kept in a contracted state, and the inner mold cylinder A is lifted to the corresponding position of the inner mold cylinder support 102 by using a crane;

[0067] S3. Start the control device, adjust the relative position of the operating platform 2 and the inner mold cylinder support 102, so that the construction personnel can complete the inner mold cylinder A installation work on the operating platform 2. Specifically, if it is necessary to adjust the structure of the inner mold cylinder A at the top of the inner mold cylinder A, the operating platform 2 can be lifted by the control device until the construction personnel can conveniently adjust the operation; if it is necessary to fix the inner mold cylinder A on the inner mold cylinder support 102, the operating platform 2 can be lowered by the control device until below the inner mold cylinder support 102, so that the construction personnel can conveniently install the bottom of the inner mold cylinder A on the inner mold cylinder support 102, etc.; during the installation and adjustment of the inner mold cylinder A, the control device can also be connected with the lead screw structure in the inner mold cylinder A, so as to conveniently adjust the shape of the inner mold cylinder through the control device;

[0068] S4. Apply release agent to the surface of the inner mold plate A01, and keep it from flowing; if the embedded box A03 will be used during pouring, the embedded box A03 can be installed after the release agent is applied;

[0069] S5. Start the control device to expand the inner mold cylinder A as a whole, as shown in Figure 4 , expand until the corresponding inner mold plate A01 and the corner column A02 on each side of the cylinder body are in the same plane, and there is no obvious gap between the inner mold plate A01 and the corner column A02 when viewed from the outside, and the surface of the inner mold cylinder A is coherent and smooth as a whole;

[0070] S6. Build the corresponding elevator shaft outer mold and reinforce it, insert wall screws at the corresponding positions of the inner and outer molds and fix them, and perform concrete pouring work;

[0071] S7. When the concrete reaches the demolding strength, release the fixed state of the wall screws and pull them out, remove the outer mold of the elevator shaft, start the control device, and rotate the lead screw structures in the four corner columns A02 in sequence or simultaneously to make the inner mold cylinder A shrink to the smallest state;

[0072] S8. Start the control device to adjust the support claw arm 5 on the inner mold cylinder support 102 to the folded state, and at the same time, start the first lifter 103 through the control device to lift the inner mold cylinder support 102 to the position where the corresponding positioning groove is located; use the control device to adjust the support claw arm 5 to the extended state and keep it, and fix the inner mold cylinder support 102;

[0073] S9. Start the control device to adjust the support claw arm 5 on the guide column group support 101 to the folded state, and at the same time, start the first lifter 103 through the control device to lift the guide column group support 101 to the position where the corresponding positioning groove is located; use the control device to adjust the support claw arm 5 to the extended state and keep it, and fix the guide column group support 101;

[0074] as Figure 4As shown, the corresponding pre-embedded box A03 can be installed on the inner template A to form a positioning groove in the elevator shaft after pouring, and the position of the pre-embedded box A03 is matched with the position of the support claw arm 5 and the lifting height of the inner mold lifting device, and the size of the pre-embedded box A03 is matched with the size of the support claw arm 5.

[0075] S10. If the pre-embedded box A03 is used, the construction personnel first remove the pre-embedded box A03 from the outside, then clean the inner template A01 around the inner mold cylinder A, apply the evenly mixed release agent to the surface of the inner template A01, and keep it from flowing;

[0076] S11. Repeat steps S4-S10 to complete the pouring work of each layer of the elevator shaft.

[0077] Preferably, during the use of the elevator shaft inner mold lifting detection device, the construction personnel can read the results at any time through the horizontal detection device arranged on the inner mold cylinder support 102 and the operation platform 2 to know whether the supporting surface of the inner mold cylinder support 102 and the operation platform 2 is in a horizontal state, and if not, the corresponding lifter is started through the control device to lift one corner or one side of the corresponding supporting surface to level the corresponding supporting surface.

[0078] Preferably, in S6-S7 and between S8 and S9, the second lifter 201 can be started through the control device to lift the operation platform 2, which facilitates the construction personnel to fix and remove the wall penetrating screws before pouring construction, to check the leakage condition during pouring, and to process and repair the inner wall of the elevator shaft after pouring is completed.

[0079] Preferably, the operation platform 2 is hingedly connected with an extension plate 202, and when the operation platform 2 is not in the same plane as the inner mold cylinder support 102, i.e., the extension plate 202 does not conflict with the operation through hole 102a after being unfolded, unfolding the extension plate 202 can expand the operation space of the operation platform 2.

[0080] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing implementation cases, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing implementation cases, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the implementation cases of the present application.

Claims

1. A formwork hoisting device in an elevator shaft, characterized in that, The device comprises a support part (1), an operation platform (2) and a guide column group (3). The support part (1) comprises a guide column group support (101) and an inner mold cylinder support (102) for mounting an inner mold cylinder (A), and the inner mold cylinder support (102) is provided with an operation through hole (102a). The guide column group (3) is arranged on the guide column group support (101), and the guide column group (3) comprises a plurality of vertical guide columns (301), the inner mold cylinder support (102) and the operation platform (2) are movably connected to the guide column group (3) along the plurality of guide columns (301) through first lifters (103) and second lifters (201) respectively, the first lifters (103) and the second lifters (201) do not interfere with each other, and the first lifters (103) and the second lifters (201) are connected with a control device; the first guide rails (301a) and the second guide rails (301b) are arranged on the sides of the plurality of guide columns (301) away from and close to the center of the guide column group support (101) respectively, and the first guide rails (301a) and the second guide rails (301b) are matched with the first lifters (103) and the second lifters (201) respectively to realize lifting operation; The operation through hole (102a) and the outer contour of the moving area of the operation platform (2) are provided with a passing gap (102b).

2. An in- shaft form-lifting device according to claim 1, characterized in that The plurality of guide columns (301) are evenly arranged on the guide column group support (101).

3. An in- shaft form-lifting device according to claim 1, wherein Horizontal detection devices are arranged on the inner mold cylinder support (102) and the operation platform (2) to detect the horizontal state of the supporting surface of the inner mold cylinder support (102) and / or the operation platform (2).

4. An in- shaft form lifting device according to claim 1, wherein The supporting surface of the operation platform (2) and the inner wall of the inner mold cylinder (A) are respectively provided with mounting elements (401) for fixedly mounting support pieces (4), the support pieces (4) are rigid rod structures, and after installation, the support pieces (4) can support and fix the inner mold cylinder (A).

5. An in- shaft form lifting device according to claim 1, wherein, The operation platform (2) is hinged with an extension plate (202) around.

6. The method of using an in- shaft formwork hoist of any of claims 1-5, wherein, The device comprises the following steps: S1. Hoist the elevator shaft inner mold lifting device to the elevator shaft construction site, and fix the elevator shaft inner mold lifting device; S2. Hoist the inner mold cylinder (A) to the position of the inner mold cylinder support (102); S3. Adjust the relative positions of the operation platform (2) and the inner mold cylinder support (102) to facilitate the work including installation, installation condition inspection and structure adjustment of the inner mold cylinder (A); S4. Brush the release agent to the surface of the inner mold plate (A01) and keep it from flowing; S5. Adjust the inner mold cylinder (A) to an expanded state; S6. Build the remaining elevator shaft pouring molds and reinforce them, pour in concrete to perform elevator shaft pouring work; S7. When the concrete reaches the demolding strength, remove the remaining elevator shaft pouring molds, and adjust the inner mold cylinder (A) to a contracted state. S8. Lifting the inner mold cylinder support (102) until the corresponding positioning slot on the inner wall of the elevator shaft and fixing; S9. Lifting the guide column group support (101) until the corresponding positioning slot on the inner wall of the elevator shaft and fixing; S10. Cleaning the inner mold plate (A01); S11. Repeating steps S4~S10 to complete the pouring work of each layer of the elevator shaft.

7. A method of using an elevator shaft form lift according to claim 6, wherein, In the use method, the horizontal state of the supporting surface of the inner mold cylinder support (102) and / or the operation platform (2) is detected by a horizontal detection device, and if the corresponding supporting surface is not in a horizontal state, the corresponding supporting surface is leveled by a corresponding lifter.

8. A method of using an elevator shaft form lift according to claim 7, wherein, In S6~S7 and between S8 and S9, the operation platform (2) is lifted to perform one or more works including fixing and dismounting of the wall screw before pouring construction, checking of the pouring leakage state during pouring, processing and repair of the inner wall of the elevator shaft after pouring is completed.

9. A method of using an elevator shaft form lift according to claim 8, wherein, The operation platform (2) is hinged with an extension plate (202) around it, when the operation platform (2) is not in the same plane as the inner mold cylinder support (102), the extension plate (202) is unfolded to expand the operation space of the operation platform (2).

Images