CN113513140A - Self-stabilizing elevator shaft platform with distribution box hung below layer and construction method of self-stabilizing elevator shaft platform - Google Patents
Self-stabilizing elevator shaft platform with distribution box hung below layer and construction method of self-stabilizing elevator shaft platform Download PDFInfo
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- CN113513140A CN113513140A CN202011602200.6A CN202011602200A CN113513140A CN 113513140 A CN113513140 A CN 113513140A CN 202011602200 A CN202011602200 A CN 202011602200A CN 113513140 A CN113513140 A CN 113513140A
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- 238000009826 distribution Methods 0.000 title claims abstract description 45
- 238000010276 construction Methods 0.000 title claims abstract description 37
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 15
- 238000010586 diagram Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 238000004458 analytical method Methods 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
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- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000032258 transport Effects 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 2
- 230000004888 barrier function Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/005—Lift shafts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
- H02B1/202—Cable lay-outs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/301—Cabinet-type casings; Parts thereof or accessories therefor mainly consisting of a frame onto which plates are mounted
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/303—Bases or feet
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention discloses a self-stabilizing elevator shaft platform with a distribution box hung below a floor and a construction method thereof, wherein the self-stabilizing elevator shaft platform comprises a supporting frame, an operating platform and a distribution box cabinet, the supporting frame is tightly attached to an elevator shaft wall and an elevator shaft hole beam, a self-stabilizing mechanism is formed when the platform acts on a load, the operating platform is fixedly arranged at the top of the supporting frame, and a hanging ring is respectively welded and fixed at the four corners of the operating platform; the distribution cabinet is arranged on the supporting frame below the operating platform, and the cable through holes are formed in the middle of the bottom plate of the cabinet and the operating platform. The invention designs and increases the distribution box operation room hung below along with the floor on the basis of the self-stabilizing platform in the urban construction standardization requirement, realizes the 'one-object-two-purpose' function of serving as both the elevator shaft protection platform and the distribution box operation room by shaping processing and manufacturing and field use, solves the problem of electricity utilization during illegal floor construction, ensures the safety and the standard of electricity utilization during field construction, can be repeatedly used and obviously improves the construction efficiency.
Description
Technical Field
The invention relates to the technical field of elevator shaft construction, in particular to a self-stabilizing elevator shaft platform with a distribution box hung below a floor and a construction method thereof.
Background
In the elevator shaft work progress, the block terminal is put on outer scaffold frame or above the elevator shaft operation platform along with the layer, appears following the power consumption potential safety hazard violating regulations easily: the power line led out by the equipment power line or the mobile distribution box is hung on the scaffold, so that reliable insulating binding and hanging cannot be realized; the secondary box is placed on a scaffold, so that the wiring operation of personnel is inconvenient, and high falling and falling accidents are easy to happen due to inconvenience in ascending and descending; the floor power utilization easily causes the electric wire to drag the floor, the electric wire is not hung in time, and the electric wire is soaked in water after rain and snow weather; the secondary box is arranged above the elevator shaft operating platform, is easy to conflict with the construction of an inner formwork and a scaffold of the elevator shaft, and is easy to cause electric shock and private-pulling misconnection potential safety hazards; the secondary box has no special protection, and the phenomena of private branch connection and non-electrician operation occur frequently.
Disclosure of Invention
The invention aims to provide a self-stabilizing elevator shaft platform with a distribution box hung below a floor and a construction method thereof, so as to solve the technical problems in the background technology.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a self-stabilizing elevator shaft platform with a distribution box hung below a floor comprises a supporting frame, an operating platform and a distribution box cabinet, wherein the supporting frame comprises a cross beam, a longitudinal beam, stand columns, inclined struts and support legs, the cross beam and the longitudinal beam are sequentially connected end to form a rectangular frame, two ends of the bottom of one cross beam are respectively welded and fixed with one stand column, two ends of the bottom of the other cross beam are respectively welded and fixed with one inclined strut, the bottom ends of the inclined struts incline to one side of the stand columns and are welded and fixed on the lower sections of the stand columns to form a stable triangular support frame, the support legs are horizontally arranged, one ends of the support legs are welded and connected with the lower sections of the stand columns, the other ends of the support legs extend to the outer parts of the end faces, away from the inclined struts, after the platform is installed, the inclined struts and the support legs are respectively tightly attached to an elevator shaft wall and an elevator shaft opening beam, and a self-stabilizing mechanism is safe and reliable when the platform acts on a load;
the operating platform is fixedly arranged at the top of the supporting frame, and a lifting ring is welded and fixed at the four corners of the operating platform;
on the braced frame of operation platform below was located to the distribution cabinet, including cabinet fossil fragments, cabinet curb plate and cabinet bottom plate, cabinet fossil fragments link to each other with the braced frame welding to enclose synthetic rectangle framework with the braced frame of adjacent position, the inboard fixed mounting of rectangle framework has cabinet curb plate and cabinet bottom plate, and the cable through-hole has all been seted up at cabinet bottom plate and operation platform middle part.
Preferably, welded fastening has the bottom bracing between rectangle framework bottom bight and the stand, the cabinet fossil fragments and the stand of bottom bracing and rectangle framework bottom form a stable triangular supports frame, and welded fastening has the bearing bottom plate between two bottom bracing, the cable through-hole has been seted up at the bearing bottom plate middle part, and slidable mounting has the fender sole on the stand between its and the cabinet bottom plate, it is used for adjusting to keep off sole slip from top to bottom or fixed to keep off to install adjusting bolt between sole and the stand, cabinet bottom plate, bearing bottom plate and fender sole enclose into a triangle-shaped space and deposit the layer as the cable for in the cable is deposited to regular depositing of the incoming end cable of second grade case in the layer, avoid the cable conductor to twine each other because of the overlength and tie a knot.
Preferably, in order to avoid the cable sheath from being cut by the wall of the cable through hole and prevent electric shock injury caused by electric leakage, an insulating sleeve is arranged in the cable through hole, and two ends of the insulating sleeve exceed the upper orifice and the lower orifice of the cable through hole by a certain distance.
Preferably, a circle of enclosure baffle is fixedly installed on the outer side of the cable through hole on the bottom surface of the supporting bottom plate and the top surface of the operating platform, so that the cable and the cable through hole are protected from accidental collision.
Preferably, a protective door is hinged to a side plate of the cabinet, which is arranged between the two upright posts, and a handle is mounted on the protective door.
Preferably, the protective door is provided with a lockset and is hung with warning marks such as an operation system and the like, and the operation is specially controlled by professional electricians and forbidden by non-professional electricians.
Preferably, in order to prevent the platform from damaging the poured wall, a layer of protective pad is fixedly mounted on the outer side faces of the cross beam and the longitudinal beam, and the protective pad is made of soft rubber materials.
Preferably, in order to improve the bearing capacity of the bearing plate, the bottom of the bearing bottom plate is fixedly welded with a cross-shaped reinforcing keel.
Preferably, the cabinet side plate is made of a light and durable diamond protective net.
Preferably, the construction method of the self-stabilizing elevator shaft platform using the distribution box hung below the floor comprises the following steps,
the method comprises the following steps: the method comprises the following steps of designing a platform, determining the size and materials of each component of the platform according to the size and load of the net section of the elevator shaft of a project to be constructed, drawing a platform sample diagram, carrying out stress analysis through simulation software, and adjusting the platform sample diagram according to the stress analysis result;
step two: the platform is manufactured, all components are connected and fixed according to a platform sample diagram, and welding seams are full when channel steel of the platform is welded, so that the quality requirement of a secondary welding seam is met;
step three: checking and accepting the platform, checking whether the quality of each component and the mutual connection of the components of the platform are consistent with a design sample drawing, and rectifying and adjusting the parts which do not meet the checking and accepting requirements;
step four: the platform is in place, after the concrete strength of the wall body of the bottom hoistway reaches the standard and the template is removed, all obstacles (such as the template, a pull knot, a safety net, a safety card and the like) in the hoistway are removed, a steel wire rope and a clamping ring are hung at the hanging ring of the operating platform through a tower crane hook, the platform is lifted and hoisted in place, an in-place pull rope is installed at the lower part of the platform before installation, platform support legs are clamped at the door opening part through the in-place pull rope after being hoisted to the interior of the hoistway under the command of a hoisting commander, and after the platform is in place, the installer checks whether the platform is tightly propped against the wall or not to finish the platform installation;
step five: the method comprises the steps that an electric box is installed, a secondary electric box is placed in a distribution cabinet, an access end cable penetrates through an elevator shaft and is connected with the secondary box in the distribution cabinet after sequentially passing through cable through holes in a bearing bottom plate and a cabinet bottom plate, cables with redundant lengths are regularly stored in a cable storage layer, cable unloading fixtures made of insulating materials are fixed on cable lines below a platform at intervals of two layers and not more than ten meters, the cable unloading fixtures are fixed on steel pipes of a protective connection net of the elevator shaft to be unloaded, the situation that the cable lines are broken due to overlong is avoided, power is used in a construction layer, the cables are led out of the secondary box, and after the cable through holes of an operation platform are used, the output end cables are hung and stably arranged and are dispersed on various flow boxes and electric equipment;
step six: constructing an upper-layer shaft way, wherein constructors sequentially perform the operations of binding of shaft steel bars, shaft formwork sealing, concrete construction and shaft formwork removal on an operation platform, the platform load is the live load of construction of four persons on the platform (including the dead weight of a steel plate) added outside the dead weight of the platform, and any material is strictly forbidden to be stacked on the platform in the using process and the platform cannot be used as a supporting point of a wall formwork;
step seven: hoisting the platform, after the construction of the upper elevator shaft is finished, hoisting the platform to the next construction position through the hoisting device, and repeating the layer following process from the fourth step to the sixth step;
step eight: the structure is closed to the top, and the top layer elevator well construction back that finishes accomodates the cable and takes out the platform handling through overhead hoist, transports to next project turnover and uses.
Compared with the prior art, the invention has the beneficial effects that:
the invention designs and increases the distribution box operation room hung below along with the floor on the basis of the self-stabilizing platform in the urban construction standardization requirement, realizes the 'one-object-two-purpose' function of serving as both the elevator shaft protection platform and the distribution box operation room by shaping processing and manufacturing and field use, solves the problem of electricity utilization during illegal floor construction, ensures the safety and the standard of electricity utilization during field construction, can be repeatedly used and obviously improves the construction efficiency.
Drawings
The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are meant to be illustrative, not limiting of the invention, and in which:
fig. 1 is a schematic structural view of a self-stabilized elevator shaft platform with a floor-dependent lower distribution box according to a view angle;
fig. 2 is a structural schematic diagram of a self-stabilized elevator shaft platform with a view angle of two, of a distribution box hung below the floor according to the invention;
fig. 3 is a schematic structural diagram of a self-stabilized elevator shaft platform with three viewing angles of a distribution box hung below a floor according to the invention;
fig. 4 is a structural schematic diagram of a self-stabilized elevator shaft platform with four viewing angles of a distribution box hung below a floor according to the invention;
fig. 5 is a schematic structural view of the self-stabilized elevator shaft platform with the distribution box hung below the floor according to the invention when being hoisted in place;
fig. 6 is a flow chart of a construction method of a self-stabilizing elevator shaft platform with a distribution box hung below the floor according to the invention.
Reference numerals: 1-supporting frame, 101-cross beam, 102-longitudinal beam, 103-upright post, 104-inclined strut, 105-supporting foot, 2-operating platform, 3-lifting ring, 4-distribution cabinet, 401-cabinet keel, 402-bottom inclined strut, 403-cabinet side plate, 404-cabinet bottom plate, 405-protective door, 406-handle, 407-warning mark, 408-supporting bottom plate, 409-foot baffle plate, 410-adjusting bolt, 5-cable through hole, 6-insulating sleeve and 7-enclosure baffle plate.
Detailed Description
Hereinafter, embodiments of a self-stabilized elevator shaft platform having a floor-following distribution box and a construction method thereof according to the present invention will be described with reference to the accompanying drawings. The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
In the description of the present invention, it should be noted that the terms "longitudinal", "lateral", "vertical", "oblique", "top", "bottom", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships. It is noted that the drawings are not necessarily to the same scale so as to clearly illustrate the structures of the various elements of the embodiments of the invention. Like reference numerals are used to denote like parts.
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention. Preferred embodiments of the present invention are described in further detail below with reference to FIGS. 1-6:
as shown in fig. 1-2, the self-stabilizing elevator shaft platform with a distribution box hung below a floor, which is preferably manufactured by welding Q235B grade 14a # channel steel, 12# channel steel and scaffold steel pipes according to the net size of an elevator shaft part, comprises a support frame 1, an operation platform 2 and a distribution box cabinet 4, wherein the support frame 1 comprises a cross beam 101, a longitudinal beam 102, upright posts 103, diagonal braces 104 and support legs 105, the cross beam 101 and the longitudinal beam 102 are sequentially connected end to form a rectangular frame, two ends of the bottom of one cross beam 101 are respectively welded and fixed with one upright post 103, two ends of the bottom of the other cross beam 101 are respectively welded and fixed with one diagonal brace 104, the bottom of the diagonal brace 104 is inclined towards one side of the upright post 103 and is welded and fixed at the lower section of the upright post 103 to form a triangular support frame, in order to prevent the elevator shaft platform from damaging a poured wall in the lifting and using processes, a soft rubber pad with a thickness of 10mm is additionally arranged on the outer side of the operation layers of the cross beam 101 and the longitudinal beam 102 of the platform, the supporting legs 105 are horizontally arranged, one end of each supporting leg is connected with the lower section of the upright post 103 in a welding mode, the other end of each supporting leg extends to the outside of the end face, away from the inclined strut 104, of one side of the upright post 103, the platform is tightly attached to the wall of the elevator shaft and the opening beam of the elevator shaft through the inclined strut 104 and the channel steel supporting legs 105, and a self-stabilizing mechanism is formed when the platform acts on load, so that safety and reliability are achieved;
the operating platform 2 is made of a 25 mm-thick pattern steel plate, is fixedly welded on the top of the supporting frame 1, is 25mm away from two ends of the structural wall, is fixedly welded with a lifting ring 3 at four corners, is welded with a channel steel on the platform support by adopting a diameter 22 (primary steel without cold drawing), and is provided with 4 platforms (2 of which are auxiliary lifting rings);
the distribution cabinet 4 is arranged on a support frame 1 below an operation platform 2 and comprises a cabinet keel 401, a cabinet side plate 403 and a cabinet bottom plate 404, the cabinet keel 401 is made of a 60 × 60 × 4 square steel pipe, is welded with the support frame 1 and is enclosed with the support frame 1 at an adjacent position to form a rectangular frame, the cabinet bottom plate 404 and the cabinet side plate 403 made of a diamond protective net are fixedly arranged on the inner side of the rectangular frame, a protective door 405 is hinged on the cabinet side plate 403 arranged between two upright posts 103, a handle 406 and a lock are arranged on the protective door 405 and are hung with a warning mark 407, cable through holes 5 are respectively arranged at the middle parts of the cabinet bottom plate 404 and the operation platform 2, a bottom inclined strut 402 is welded and fixed between the bottom corner part of the rectangular frame and the upright posts 103, and the bottom inclined strut 402, the cabinet keel 401 at the bottom of the rectangular frame and the upright posts 103 form a stable triangular support frame, a bearing bottom plate 408 is fixedly welded between the two bottom inclined struts 402, a cable through hole 5 is formed in the middle of the bearing bottom plate 408, a cross-shaped reinforcing keel is fixedly welded at the bottom of the bearing bottom plate 408, a foot blocking plate 409 is slidably mounted on the upright post 103 between the bearing bottom plate and the cabinet bottom plate 404, and an adjusting bolt 410 is mounted between the foot blocking plate 409 and the upright post 103, as shown in fig. 4, a triangular space is defined by the cabinet bottom plate 404, the bearing bottom plate 408 and the foot blocking plate 409 to serve as a cable storage layer, and is used for regularly storing cables at the access ends of the secondary box in the cable storage layer, so that the cables are prevented from being wound and knotted due to overlong cables;
as shown in fig. 3, an insulating sleeve 6 is arranged in the cable through hole 5, two ends of the insulating sleeve 6 both exceed the upper and lower orifices of the cable through hole 5 by a certain distance, and a circle of enclosure baffle 7 is fixedly installed on the bottom surface of the bearing bottom plate 408 and the top surface of the operating platform 2 outside the cable through hole 5.
As shown in fig. 5-6, the construction method of the self-stabilized elevator shaft platform with the distribution box hung below the floor according to the invention comprises the following steps,
the method comprises the following steps: the method comprises the following steps of designing a platform, determining the size and materials of each component of the platform according to the size and load of the net section of the elevator shaft of a project to be constructed, drawing a platform sample diagram, carrying out stress analysis through simulation software, and adjusting the platform sample diagram according to the stress analysis result;
step two: the platform is manufactured, all components are connected and fixed according to a platform sample diagram, and welding seams are full when channel steel of the platform is welded, so that the quality requirement of a secondary welding seam is met;
step three: checking and accepting the platform, checking whether the quality of each component and the mutual connection of the components of the platform are consistent with a design sample drawing, and rectifying and adjusting the parts which do not meet the checking and accepting requirements;
step four: the platform is in place, after the concrete strength of the wall body of the bottom hoistway reaches the standard and the template is removed, all obstacles (such as the template, a pull knot, a safety net, a safety card and the like) in the hoistway are removed, a steel wire rope and a clamping ring are hung at the lifting ring 3 of the operating platform 2 through a tower crane hook, so that the platform is lifted and hoisted in place, a stay cord in place is installed at the lower part of the platform before installation, after the platform is hoisted into the hoistway, the platform support legs 105 are clamped at the door opening position through the stay cord in place under the command of a hoisting commander, and after the platform is in place, an installer checks whether the platform is tightly propped against the wall or not, so that the platform installation is completed;
step five: the method comprises the steps that an electric box is installed, a secondary electric box is placed in a distribution cabinet 4, an access end cable penetrates through an elevator shaft, the secondary electric box in the distribution cabinet 4 is connected after the access end cable sequentially passes through cable through holes 5 in a bearing bottom plate 408 and a cabinet bottom plate 404, cables with surplus lengths are regularly stored in a cable storage layer, cable unloading fixtures made of insulating materials are fixed on steel pipes of a protective connection net of the elevator shaft at intervals of two layers and not more than ten meters of cables below a platform, unloading is conducted, breakage caused by overlong cables is avoided, the cables are led out of the secondary electric box in a construction layer, and after the cable through holes 5 in a cable of an operation platform 2 are used for hanging and stabilizing the access end cable, the cables are dispersed to various flow boxes and electric equipment;
step six: the construction of the upper-layer shaft way, a constructor sequentially performs the operations of binding of the steel bars of the shaft, sealing of the shaft, construction of concrete and stripping of the shaft on the operation platform 2, the load of the platform is the live load of construction of four persons on the platform (including the dead weight of a steel plate) added outside the dead weight of the platform, and any material is strictly forbidden to be stacked on the platform in the using process and the platform cannot be used as a supporting point of a wall template;
step seven: hoisting the platform, after the construction of the upper elevator shaft is finished, hoisting the platform to the next construction position through the hoisting device, and repeating the layer following process from the fourth step to the sixth step;
step eight: the structure is closed to the top, and the top layer elevator well construction back that finishes accomodates the cable and takes out the platform handling through overhead hoist, transports to next project turnover and uses.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a hang block terminal from steady formula elevartor shaft platform down along with the layer which characterized in that: the power distribution cabinet comprises a supporting frame (1), an operating platform (2) and a power distribution cabinet (4), wherein the supporting frame (1) comprises a cross beam (101), a longitudinal beam (102), an upright post (103), an inclined strut (104) and a support leg (105), the cross beam (101) and the longitudinal beam (102) are sequentially connected end to form a rectangular frame, two ends of the bottom of one cross beam (101) are respectively welded and fixed with one upright post (103), two ends of the bottom of the other cross beam (101) are respectively welded and fixed with one inclined strut (104), the bottom end of the inclined strut (104) inclines towards one side of the upright post (103) and is welded and fixed on the lower section of the upright post (103) to form a triangular support frame, the support leg (105) is horizontally arranged, one end of the support leg is welded and connected with the lower section of the upright post (103), and the other end of the support leg extends to the outside of one side end face, far away from the inclined strut (104), of the upright post (103);
the operating platform (2) is fixedly arranged at the top of the supporting frame (1), and a lifting ring (3) is welded and fixed at the four corners of the operating platform;
on distribution cabinet (4) located braced frame (1) of operation platform (2) below, including cabinet fossil fragments (401), cabinet curb plate (403) and cabinet bottom plate (404), cabinet fossil fragments (401) link to each other with braced frame (1) welding to enclose synthetic rectangle framework with braced frame (1) of adjacent position, the inboard fixed mounting of rectangle framework has cabinet curb plate (403) and cabinet bottom plate (404), and cable through-hole (5) have all been seted up with operation platform (2) middle part in cabinet bottom plate (404).
2. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 1, characterized in that: welded fastening has bottom bracing (402) between rectangle framework bottom bight and stand (103), bottom bracing (402) and bin fossil fragments (401) and stand (103) of rectangle framework bottom form a triangular supports frame, and welded fastening has bearing bottom plate (408) between two bottom bracing (402), cable through-hole (5) have been seted up at bearing bottom plate (408) middle part, and slidable mounting has on stand (103) between its and bin bottom plate (404) and keeps off sole (409), keep off and install adjusting bolt (410) between sole (409) and stand (103), bin bottom plate (404), bearing bottom plate (408) and keep off sole (409) enclose into the cable and deposit the layer.
3. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 2, characterized in that: be equipped with insulation support (6) in cable through-hole (5), insulation support (6) both ends all surpass cable through-hole (5) upper and lower drill way certain distance.
4. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 2, characterized in that: and a circle of enclosure baffle (7) is fixedly arranged on the outer side of the cable through hole (5) on the bottom surface of the bearing bottom plate (408) and the top surface of the operating platform (2).
5. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 1, characterized in that: a protective door (405) is hinged to a cabinet side plate (403) arranged between the two upright posts (103), and a handle (406) is mounted on the protective door (405).
6. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 5, characterized in that: the protective door (405) is provided with a lockset and is hung with a warning mark (407).
7. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 1, characterized in that: a layer of protective pad is fixedly arranged on the outer side faces of the cross beam (101) and the longitudinal beam (102), and the protective pad is made of soft rubber materials.
8. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 2, characterized in that: and a cross reinforcing keel is welded and fixed at the bottom of the bearing bottom plate (408).
9. The self-stabilizing elevator shaft platform with the floor-mounted distribution box according to claim 1, characterized in that: the cabinet side plate (403) is made of a diamond protective net.
10. A construction method of a self-stabilized elevator shaft platform using the floor-hung distribution box according to any one of claims 1 to 9, comprising the steps of,
the method comprises the following steps: the method comprises the following steps of designing a platform, determining the size and materials of each component of the platform according to the size and load of the net section of the elevator shaft of a project to be constructed, drawing a platform sample diagram, carrying out stress analysis through simulation software, and adjusting the platform sample diagram according to the stress analysis result;
step two: manufacturing a platform, namely connecting and fixing all components according to a platform sample drawing;
step three: checking and accepting the platform, checking whether the quality of each component and the mutual connection of the components of the platform are consistent with a design sample drawing, and rectifying and adjusting the parts which do not meet the checking and accepting requirements;
step four: the platform is in place, after the concrete strength of the wall body of the bottom hoistway reaches the standard and the template is removed, all barriers in the hoistway are removed, the platform is hoisted in place through the hoisting device, the in-place stay cord is installed at the lower part of the platform before installation, after the platform is hoisted into the elevator shaft, the platform support legs (105) are clamped at the door opening part through the in-place stay cord under the command of a hoisting commander, and after the platform is in place, the installer checks whether the platform is tightly propped against the wall, so that the platform installation is completed;
step five: the method comprises the steps that an electric box is installed, a secondary electric box is placed in a distribution cabinet (4), an access end cable penetrates through an elevator shaft, the secondary electric box is connected through a cable through hole (5), unloading of a cable at the bottom of a platform is well conducted through insulating materials, electricity is used in a construction layer, the cable is led out of the secondary electric box, the access end cable is hung and arranged stably through a cable through hole (5) of an operation platform (2) through an insulating hook, and then the access end cable is dispersed to each flow box and electric equipment;
step six: constructing an upper-layer shaft way, wherein constructors sequentially perform the operations of binding the steel bars of the shaft, sealing the shaft, constructing concrete and stripping the shaft on the operating platform (2);
step seven: hoisting the platform, after the construction of the upper elevator shaft is finished, hoisting the platform to the next construction position through the hoisting device, and repeating the layer following process from the fourth step to the sixth step;
step eight: the structure is closed to the top, and the top layer elevator well construction back that finishes accomodates the cable and takes out the platform handling through overhead hoist, transports to next project turnover and uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602200.6A CN113513140A (en) | 2020-12-30 | 2020-12-30 | Self-stabilizing elevator shaft platform with distribution box hung below layer and construction method of self-stabilizing elevator shaft platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011602200.6A CN113513140A (en) | 2020-12-30 | 2020-12-30 | Self-stabilizing elevator shaft platform with distribution box hung below layer and construction method of self-stabilizing elevator shaft platform |
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| CN113513140A true CN113513140A (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011602200.6A Withdrawn CN113513140A (en) | 2020-12-30 | 2020-12-30 | Self-stabilizing elevator shaft platform with distribution box hung below layer and construction method of self-stabilizing elevator shaft platform |
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| CN (1) | CN113513140A (en) |
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Application publication date: 20211019 |