CN114215227A - Construction method of concealed distribution box - Google Patents

Construction method of concealed distribution box Download PDF

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Publication number
CN114215227A
CN114215227A CN202111562799.XA CN202111562799A CN114215227A CN 114215227 A CN114215227 A CN 114215227A CN 202111562799 A CN202111562799 A CN 202111562799A CN 114215227 A CN114215227 A CN 114215227A
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CN
China
Prior art keywords
distribution box
wall
box body
bag
template
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111562799.XA
Other languages
Chinese (zh)
Inventor
韩英峰
尹华松
王帅
王义东
张之纯
李林
谢壮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway No 3 Engineering Group Co Ltd
Construction and Installation Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Original Assignee
China Railway No 3 Engineering Group Co Ltd
Construction and Installation Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway No 3 Engineering Group Co Ltd, Construction and Installation Engineering Co Ltd of China Railway No 3 Engineering Group Co Ltd filed Critical China Railway No 3 Engineering Group Co Ltd
Priority to CN202111562799.XA priority Critical patent/CN114215227A/en
Publication of CN114215227A publication Critical patent/CN114215227A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84Walls made by casting, pouring, or tamping in situ
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/48Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • E04F13/047Plaster carrying meshes
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G15/00Forms or shutterings for making openings, cavities, slits, or channels
    • E04G15/06Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
    • E04G15/063Re-usable forms
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02Conveying or working-up concrete or similar masses able to be heaped or cast
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02Details
    • H02G3/08Distribution boxes; Connection or junction boxes
    • H02G3/12Distribution boxes; Connection or junction boxes for flush mounting
    • H02G3/121Distribution boxes; Connection or junction boxes for flush mounting in plain walls

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention provides a construction method of a concealed distribution box, which comprises the steps of respectively controlling the positions of a corner wall mould and a press-in splicing mould through a first position control bolt and a second position control bolt, and sealing a reserved nut pipe orifice by adopting a sealing bag and a bag filling body; pushing the guide pressure rod by adopting the first position control body, synchronously pushing the annular template by adopting the second position control body, and controlling the pushing direction by adopting a guide sleeve; paving an interface rib net at the joint of the power distribution box body and the annular template; set up in the block terminal internally and seal the bag and seal the panel to fill the body through the bag and make the outer surface parallel and level of sealing panel and wall decorative cover, and fill the distribution box cavity. The invention can improve the construction efficiency, improve the installation positioning precision and reduce the construction difficulty.

Description

Construction method of concealed distribution box
Technical Field
The invention relates to the field of building electrical engineering, in particular to a construction method of a concealed distribution box, which can improve construction efficiency, improve installation positioning precision and reduce construction difficulty and is suitable for building electrical installation engineering.
Background
In building construction engineering, a series of distribution boxes are often required to be arranged on a building wall, wherein a concealed distribution box is a relatively wide distribution box structure. When the concealed distribution box is constructed, how to improve the positioning accuracy of the distribution box, reduce the damage of construction to a distribution box body and enhance the integrity of the distribution box structure is always the key and difficult point of engineering control.
There has been a formula fire prevention protection against touch various face art secretly to assemble electronic box construction technology in prior art to inhale to magnetism, is equipped with solidus support A, guide rail bracket, solidus support B from top to bottom in proper order on the bottom plate of electronic box case shell, connects zero row ground connection row, and the side is equipped with box ground connection post, fire prevention and prevents touching baffle support etc.. The technology has the characteristics of convenience in installation, high installation performance and the like, but the technology is difficult to synchronously solve the problems of reducing the construction difficulty of the distribution box, improving the installation positioning precision, improving the structural integrity and the like.
In view of this, in order to improve the installation and positioning accuracy of the distribution box and reduce the construction difficulty, the invention of the concealed distribution box construction method capable of improving the construction efficiency, reducing the construction difficulty and improving the installation and positioning accuracy is urgently needed.
Disclosure of Invention
The invention aims to provide a construction method of a concealed distribution box, which can not only reduce the difficulty of installation and construction of a distribution box body, but also improve the installation and positioning accuracy of the distribution box.
In order to achieve the purpose, the technical scheme provides a construction method of a concealed distribution box, which comprises the following construction steps:
1) construction preparation: pouring a lower floor slab at the lower part of the distribution box body, laying a first embedded pipe in the lower floor slab, and surveying and determining the space positions of the box-shaped reinforcing ribs and the distribution box body;
2) installing and fixing the embedded pipeline: binding a wall reinforcement cage, and arranging box-shaped reinforcing ribs with cross sections in a n shape at the wall reinforcement cage corresponding to the distribution box body; according to the space position requirement of the second embedded pipe, a limiting sleeve for limiting the position of the second embedded pipe is preset on the wall body reinforcement cage; an indwelling nut is arranged at the end part of the second embedded pipe, and a sealing bag is preset in a cavity of the indwelling nut;
3) concrete pouring of the structural wall: the construction method comprises the following steps that vertical support columns are arranged on two sides of a structural wall to be constructed respectively, transverse support rods are arranged between the vertical support columns and a wall surface formwork and between the vertical support columns and a wall back formwork respectively, and pressure dispersion plates are arranged at joints of the transverse support rods and the wall surface formwork and the wall back formwork respectively; a cross-shaped strut with a cross section in a cross shape is arranged on the side of the vertical strut facing the distribution box body; firstly, arranging a corner wall mold at the position of a distribution box body, limiting the vertical position of the corner wall mold through a first position control bolt, and then pressing in a splicing mold and jacking the splicing mold to between two corner wall molds with opposite mirror images through a second position control bolt; pouring concrete into a cavity formed by enclosing the wall back template, the wall surface template, the corner wall template and the press-in splicing template by adopting external concrete pouring equipment to form a structural wall; after the structural wall concrete forms strength, firstly applying tension to the press-in splicing mold through a second position control bolt, removing the constraint of the press-in splicing mold on the corner wall mold, and then sequentially removing the corner wall mold, the wall surface template and the wall back template;
4) installing and positioning the distribution box body: sequentially erecting a platform support column and a platform top plate on the lower floor slab, and arranging a counter-force support column on the platform top plate; a guide sleeve is vertically welded on the side, facing the distribution box body, of the counterforce support column, counterforce support plates are respectively welded on the upper surface and the lower surface of the guide sleeve, 1 group of first control bodies and 1 group of second control bodies are welded on the counterforce support plate on the upper surface of the guide sleeve, and 1 group of second control bodies are welded on the counterforce support plate on the lower surface of the guide sleeve; the other end of the first control body is vertically welded and connected with a pressure rod supporting plate on the top surface of the guide pressure rod; 1 group of inner supporting control bodies are respectively arranged on the upper surface and the lower surface of the pressure rod supporting plate, and a pushing pressing plate is arranged at the joint of the pressure rod supporting plate and the distribution box body; an annular template is arranged on the periphery of the power distribution box body along the annular direction, and the annular template is connected with the second control body; paving an interface rib net along the joint surface of the distribution box body and the annular template; firstly, the sealing bag is taken out through the drawing pull rope, then the distribution box body and the annular template are synchronously pushed through the first position control body and the second position control body, and the distribution box body is pressed into a reserved notch of the structural wall;
5) and (3) carrying out solid construction outside the box: connecting the connecting pipe section and the retaining nut firmly; checking the fit condition of the annular template and the surface of the structural wall, grouting the peripheral gap of the distribution box body through a pressure grouting hole to form an outer box dense entity, synchronously determining the tightness of grouting through a grouting observation hole, and synchronously bonding and connecting the interface rib net and the surface of the structural wall.
6) And (3) decorative surface layer construction: the method comprises the steps of firstly arranging a closed bag and a sealing panel in a distribution box body, pressing slurry into the closed bag through a bag pressurization pipe to form a bag filling body, enabling the sealing panel to be flush with the outer surface of a wall surface decorative layer, and then carrying out wall surface decorative layer construction.
Compared with the prior art, the technical scheme has the following characteristics and beneficial effects:
(1) according to the invention, the positions of the press-in splicing die and the corner wall die are respectively controlled by the first position control bolt and the first position control bolt, so that convenient die supporting and die removing of the notch of the distribution box body are realized; meanwhile, the invention adopts the sealing bag and the bag filler to seal the opening of the reserved nut, thereby realizing the rapid sealing protection of the opening.
(2) According to the invention, the first position control body is adopted to push the guide pressure rod, the annular template is synchronously pushed through the second position control body, and the pushing direction is controlled by the guide sleeve, so that the synchronous arrangement of the distribution box body and the annular template is realized; meanwhile, the interface rib net is laid on the joint surface of the power distribution box body and the annular template, so that the laying quality of the rib net is improved.
(3) According to the invention, the closed bag and the sealing panel are arranged in the distribution box body, the cavity of the distribution box body is filled, and the sealing panel is flush with the outer surface of the wall surface decorative surface layer through the bag filling body, so that the pollution of the decorative surface layer construction to the distribution box body is reduced.
Drawings
FIG. 1 is a flow chart of the construction process of the invention involving a concealed distribution box;
FIG. 2 is a schematic view of the supporting structure of the pouring form of the structural wall shown in FIG. 1;
FIG. 3 is a schematic view of the connection structure of the retention nut and the sealing bladder of FIG. 2;
FIG. 4 is a schematic view of a push mounting fixture for the distribution box of FIG. 1;
fig. 5 is a schematic view of a closed pocket structure of a power distribution box body.
In the figure: 1-lower floor slab; 2-a first pre-buried pipe; 3-box-shaped reinforcing ribs; 4-a distribution box body; 5-a wall reinforcement cage; 6-a second pre-buried pipe; 7-a limit sleeve; 8-an indwelling nut; 9-sealing the bag; 10-vertical braces; 11-wall form; 12-wall back formwork; 13-transverse struts; 14-a pressure dispersion plate; 15-a cross brace; 16-corner wall forms; 17-a first position control bolt; 18-a second position control bolt; 19-pressing into a splicing die; 20-a structural wall; 21-a platform brace; 22-a platform ceiling; 23-a counter-force brace; 24-a guide sleeve; 25-a counter-force supporting plate; 26-a first control body; 27-a second control body; 28-a guiding pressure lever; 29-a strut plate; 30-internal supporting control body; 31-pushing the pressing plate; 32-ring form; 33-interface web of tendons; 34-drawing pull rope; 35-connecting the pipe sections; 36-pressure grouting holes; 37-a box outside secret entity; 38-grouting observation holes; 39-closed pouch; 40-sealing the panel; 41-bladder pressurization tube; 42-capsular bag infusion body; 43-decorative surface layer; 44-capsular bag obturator; 45-tank connection hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
Concrete pouring construction technical requirements, formwork erecting construction technical requirements, structural steel rolling and welding construction technical requirements and the like are not repeated in the embodiment, and the embodiment of the method related to the invention is mainly explained.
Fig. 1 is a flow chart of construction of a concealed distribution box according to the present invention, and referring to fig. 1, a construction method of a concealed distribution box includes the following construction steps:
1) construction preparation: pouring a lower floor slab (1) at the lower part of the distribution box body (4), laying a first embedded pipe (2) in the lower floor slab (1), and surveying and determining the space positions of the box-shaped reinforcing ribs (3) and the distribution box body (4);
2) installing and fixing the embedded pipeline: binding a wall reinforcing cage (5), arranging box-shaped reinforcing ribs (3) at the wall reinforcing cage (5) corresponding to the power distribution box body (4), presetting a limiting sleeve (7) for limiting the position of a second embedded pipe (6) on the wall reinforcing cage (5), arranging an indwelling nut (8) at the end part of the second embedded pipe (6), and presetting a sealing bag (9) in a cavity of the indwelling nut (8);
3) concrete pouring of the structural wall: the method comprises the following steps that vertical supporting columns (10) are arranged on two sides of a structural wall (20) to be constructed respectively, transverse supporting rods (13) are arranged between the vertical supporting columns (10) and a wall surface formwork (11) and between the vertical supporting columns (10) and a wall back formwork (12) respectively, and a wall body reinforcement cage (5) is arranged between the wall surface formwork (11) and the wall back formwork (12); a cross-shaped strut (15) with a cross section in a cross shape is arranged on the side, facing the power distribution box body (4), of the vertical strut (10); the cross-shaped brackets (15) are respectively pressed on the side walls of the box-shaped reinforcing ribs (3); external concrete pouring equipment is adopted to pour concrete into a cavity formed by enclosing the wall back template (12), the wall surface template (11), the corner wall template (16) and the press-in splicing template (19) to form a structural wall (20); after the structural wall (20) is formed with strength, the support of the cross-shaped support frame is removed, and then the corner wall formwork (16), the wall surface formwork (11) and the wall back formwork (12) are sequentially removed;
the cross-shaped strut (8) is of a cross structure, a first position control bolt (17) and a second position control bolt (18) are arranged on two sides of the cross-shaped strut (8), and a press-in splicing die (19) is arranged at the end part of the second position control bolt (18); the end part of the second position control bolt (18) is arranged at the position of the distribution box body (4) and is provided with a corner wall mold (16), the first position control bolt (17) limits the vertical position of the corner wall mold (16), and then the second position control bolt (18) presses the press-in splicing mold (19) to be pressed between two corner wall molds (16) with opposite mirror images. After the concrete of the structural wall (20) forms strength, tension is applied to the press-in splicing die (19) through the second position control bolt (18), and restraint of the press-in splicing die (19) on the corner wall die (16) is removed.
4) Installing and positioning the distribution box body: the platform support column (21) and the platform top plate (22) are sequentially erected on the lower floor panel (1), the counter-force support column (23) is arranged on the platform top plate (22), the guide sleeve (24) is perpendicularly welded on the counter-force support column (23) facing to the side of the distribution box body (4), and the guide sleeve (28) is arranged in the guide sleeve
(24) The inner sliding is realized, a pressure rod supporting plate (29) is arranged on the top surface of the guide pressure rod (28), a pushing pressure plate (31) is arranged at the joint of the pressure rod supporting plate (29) and the distribution box body (4), an annular template (32) is arranged on the periphery of the distribution box body (4) along the annular direction, the sealing bag (9) is taken out through a pull rope (34) which is drawn and connected with the sealing bag (9), the distribution box body (4) and the annular template (32) are synchronously pushed by the pushing pressure plate (31), and the distribution box body (4) is pressed into a reserved notch of the structure wall (20);
the upper surface and the lower surface of the guide sleeve (24) are respectively welded with a counter-force supporting plate (25), 1 group of first control bodies (26) and 1 group of second control bodies (27) are welded on the counter-force supporting plate (25) on the upper surface of the guide sleeve (24) at intervals, 1 group of second control bodies (27) are welded on the counter-force supporting plate (25) on the lower surface of the guide sleeve (24), and the other end of the first control body (26) is vertically welded with a pressure rod supporting plate (29) on the top surface of a guide pressure rod (28); 1 group of internal support control bodies (30) are respectively arranged on the upper surface and the lower surface of the pressure rod supporting plate (29). The annular template (32) is connected with the second control body (27), and the distribution box body (4) and the annular template (32) are synchronously pushed through the first control body (26) and the second control body (27).
The reaction bracing plate (25) is perpendicular to the guide sleeve (24), the second control body (27) is arranged at the outer end side of the first control body (26), the guide compression bar (28) slides in the guide sleeve (24), and the top surface of the guide compression bar (28) is provided with a compression bar bracing plate (29).
And an interface rib net (33) is laid along the joint surface of the distribution box body (4) and the annular template (32).
5) And (3) carrying out solid construction outside the box: connecting the connecting pipe section (35) with an indwelling nut (8), grouting a gap on the periphery of the power distribution box body (4) through a pressure grouting hole (36) formed in the bottom of the annular template (32) to form a box outer dense entity (37), synchronously determining the tightness of grouting through a grouting observation hole (38) in the annular template (32), and synchronously enabling the interface rib net (33) to be connected with the surface of the structural wall (20) in a sticking manner;
6) and (3) decorative surface layer construction: a closed bag (39) and a sealing panel (40) are arranged in a distribution box body (4), the closed bag (39) is pressed with slurry through a bag pressurizing pipe (41) on the sealing panel (40) to form a bag filling body (42), the sealing panel (40) is enabled to be flush with the outer surface of a wall surface decorative layer (43), and then the wall surface decorative layer (43) is constructed.
Step 2), the limiting sleeve (7) is made of a steel pipe, and the inner diameter of the limiting sleeve is 10-30 mm larger than the outer diameter of the second embedded pipe (6); the box-shaped reinforcing ribs (3) are formed by rolling steel sheets, the spacing is the same as the vertical steel bars of the wall body steel bar cage (5), and the box-shaped reinforcing ribs are welded with the steel bars of the connected wall body steel bar cage (5); the sealing bag (9) is formed by sewing a rubber sheet or a geomembrane, expansive soil or water glass is filled in the sealing bag (9) to form a bag filling body (44), and the bottom end of the sealing bag (9) is provided with a drawing pull rope (34).
Step 3), adopting alloy templates or steel templates for the corner wall mold (16) and the press-in splicing mold (19), and connecting the corner wall mold (16) with the wall template (11); the cross section of the press-in splicing die (19) is in an isosceles trapezoid shape, and an inclined plane connected with the press-in splicing die (19) is arranged on the corner wall die (16); the first position control bolt (17) and the second position control bolt (18) both comprise a screw rod and a nut, the fastening directions of the screw rods on the two sides of the nut are opposite, and the first position control bolt and the second position control bolt are connected with the cross-shaped support frame (15) in a welding mode.
Step 4), the first control body (26) and the second control body (27) both adopt hydraulic jacks; the inner support control body (30) comprises a screw rod and a nut, and the fastening directions of the screw rods on the two sides of the nut are opposite; the guide sleeve (24) is formed by rolling a steel plate, and the top surface of the guide sleeve is provided with a channel for sliding a pressure rod supporting plate (29); the annular template (32) is formed by rolling a steel plate, the cross section of the annular template is in a step shape, a pressure grouting hole (36) is formed in the bottom of the annular template (32), and a grouting observation hole (38) is formed in the top of the annular template; the power distribution box body (4) is made of steel plates, the cross section of the power distribution box body is rectangular, and the outer side wall of the power distribution box body is provided with a box body connecting hole (45).
Step 6), the sealing panel (40) is made of a PVC plate and is pasted and connected with the sealing bag (39), and the width and the height of the sealing panel are 10-20 mm smaller than those of the distribution box body (4); the closed bag (39) is formed by sewing a rubber sheet or a geomembrane and is communicated with the bag pressurization pipe (41); the bag perfusion body (42) adopts water or slurry.
Fig. 2 is a schematic diagram of a supporting structure of a pouring template of the structural wall in fig. 1, fig. 3 is a schematic diagram of a connection structure of an indwelling nut and a sealing bag in fig. 2, fig. 4 is a schematic diagram of a pushing, installing and fixing structure of a distribution box in fig. 1, and fig. 5 is a schematic diagram of a sealing structure of a sealing bag of a distribution box body. Referring to fig. 2 to 5, the construction method of the concealed distribution box is characterized in that: the positions of the corner wall mold (16) and the pressing-in splicing mold (19) are respectively controlled by a first position control bolt (17) and a second position control bolt (18), and the opening of the indwelling nut (8) is sealed by a sealing bag (9) and a bag filling body (44); a first control body (26) is adopted to push a guide pressure rod (28), an annular template (32) is synchronously pushed through a second control body (27), and a guide sleeve (24) is adopted to control the pushing direction; an interface rib net (33) is laid on the joint surface of the distribution box body (4) and the annular template (32); a closed bag (39) and a sealing panel (40) are arranged in the distribution box body (4), the sealing panel (40) is flush with the outer surface of a wall surface decorative surface layer (43) through a bag filling body (42), and the cavity of the distribution box body (4) is filled.
The lower floor slab (1) is a concrete ground, the thickness of the lower floor slab is 100mm, and the strength grade of the concrete is C30.
The first embedded pipe (2) and the second embedded pipe (6) are both formed by rolling steel pipes with the inner diameter of 32 mm.
The limiting sleeve (7) is a steel pipe with the diameter of 50 mm.
The box-shaped reinforcing ribs (3) are formed by rolling steel sheets with the thickness of 10mm, have the width of 3cm, have the same interval with the vertical steel bars of the wall body steel bar cage (5), and are welded and connected with the steel bars of the connected wall body steel bar cage (5); the wall body reinforcement cage (5) is formed by binding 18mm diameter thread steel bars and 8mm diameter thread steel bars.
The retaining nut (8) is connected with the first embedded pipe (2) and the second embedded pipe (6) through threads.
The sealing bag (9) is formed by combining rubber sheets with the thickness of 1mm, the sealing bag (9) is filled with expansive soil to form a bag filling body (44), and the bottom end of the sealing bag (9) is provided with a drawing pull rope (34). The drawing pull rope (34) adopts a nylon rope with the diameter of 6 mm.
The vertical support column (10) adopts an H-shaped support column with the specification of 250 multiplied by 9 multiplied by 14.
The wall surface template (11) and the wall back template (12) both adopt steel templates with the thickness of 3 mm.
The transverse stay bar (13) adopts H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8.
The pressure dispersion plate (14) is formed by rolling a steel plate with the strength grade of Q235B and the thickness of 1 cm.
The cross-shaped support frame (15) is formed by mutually and vertically welding screw rods with the diameter of 60 mm.
The corner wall formwork (16) and the press-in splicing formwork (19) both adopt steel formworks with the thickness of 3mm, and the corner wall formwork (16) is connected with the wall formwork (11); the cross section of the press-in splicing die (19) is in an isosceles trapezoid shape, the top width is 20cm, the bottom width is 25cm, and an inclined plane connected with the press-in splicing die (19) is arranged on the corner wall die (16).
The first position control bolt (17) and the second position control bolt (18) both comprise a screw rod and a nut with the diameter of 60mm, the fastening directions of the screw rods on the two sides of the nut are opposite, and the first position control bolt and the second position control bolt are connected with the cross-shaped support frame (15) in a welding mode.
The structural wall (20) adopts a concrete partition wall, and the concrete strength grade is C30.
The platform support column (21) is formed by rolling a steel pipe with the diameter of 100mm, and the middle part of the platform support column (21) is provided with a thread connected with a height adjusting bolt.
The platform top plate (22) is formed by rolling a steel plate with the thickness of 10mm, and 4 platform support columns (21) are vertically welded below the platform top plate.
The reaction force stay (23) is formed by rolling H-shaped steel with the specification of 100 multiplied by 6 multiplied by 8.
The reaction supporting plate (25) is formed by cutting a steel plate with the thickness of 10 mm.
The first control body (26) and the second control body (27) both adopt hydraulic jacks.
The guide pressure lever (28) is formed by rolling a steel plate with the thickness of 10mm, the cross section of the guide pressure lever is rectangular, the width of the guide pressure lever is 60mm, the height of the guide pressure lever is 60mm, and a pressure plate supporting plate (29) is welded on the top surface of the guide pressure lever.
The pressure bar supporting plate (29) is formed by cutting a steel plate with the strength of Q235 and the width of the pressure bar supporting plate is 40 mm.
The inner support control body (30) comprises a screw rod with the diameter of 50mm and a nut, and the fastening directions of the screw rods on the two sides of the nut are opposite.
The guide sleeve (24) is formed by rolling a steel plate with the thickness of 10mm, the cross section of the guide sleeve is rectangular, the upper surface of the guide sleeve with the width of 100mm and the height of 80mm is provided with a channel for sliding a pressure bar supporting plate (29), one end of the guide sleeve is vertically welded with the counter-force supporting column (23), and the other end of the guide sleeve is inserted into the guide pressure bar (28).
The pushing pressing plate (31) is formed by rolling a steel plate with the thickness of 10 mm.
The annular template (32) is formed by rolling a steel plate with the thickness of 3mm, the cross section of the annular template is in a step shape, a pressure grouting hole (36) is formed in the bottom of the annular template (32), and a grouting observation hole (38) is formed in the top of the annular template. The diameter of the pressure grouting hole (36) is 40 mm. The grouting observation hole (38) is a round hole with the diameter of 3 cm.
The distribution box body (4) is made of a steel plate with the thickness of 2mm, the cross section of the distribution box body is rectangular, the width of the distribution box body is 60cm, the height of the distribution box body is 90cm, and a box body connecting hole (45) is formed in the outer side wall of the distribution box body. The diameter of the box body connecting hole (45) is 60 mm.
The interface rib net (33) adopts a steel fiber grating.
The connecting pipe section (35) adopts a steel pipe with the inner diameter of 32 mm.
The outside box dense body (37) adopts cement mortar with the strength grade of M20.
The sealing panel (40) is a PVC plate with the thickness of 200, is pasted and connected with the sealing bag (39), and has the width and the height which are 20mm smaller than those of the distribution box body (4).
The closed bag (39) is formed by sewing a rubber sheet with the thickness of 2mm and is communicated with a bag pressurization pipe (41).
The bladder pressurization pipe (41) is a rubber pipe with a diameter of 60 mm.
The bag perfusion body (42) adopts water.
The decorative surface layer (43) adopts cement mortar with the thickness of 50mm and the strength grade of M20.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.

Claims (10)

1. A construction method of a concealed distribution box is characterized by comprising the following steps:
1) construction preparation: pouring a lower floor slab (1) at the lower part of the distribution box body (4), laying a first embedded pipe (2) in the lower floor slab (1), and surveying and determining the space positions of the box-shaped reinforcing ribs (3) and the distribution box body (4);
2) installing and fixing the embedded pipeline: binding a wall reinforcing cage (5), arranging box-shaped reinforcing ribs (3) at the wall reinforcing cage (5) corresponding to the power distribution box body (4), presetting a limiting sleeve (7) for limiting the position of a second embedded pipe (6) on the wall reinforcing cage (5), arranging an indwelling nut (8) at the end part of the second embedded pipe (6), and presetting a sealing bag (9) in a cavity of the indwelling nut (8);
3) concrete pouring of the structural wall: the method comprises the following steps that vertical supporting columns (10) are arranged on two sides of a structural wall (20) to be constructed respectively, transverse supporting rods (13) are arranged between the vertical supporting columns (10) and a wall surface formwork (11) and between the vertical supporting columns (10) and a wall back formwork (12) respectively, and a wall body reinforcement cage (5) is arranged between the wall surface formwork (11) and the wall back formwork (12); a cross-shaped strut (15) with a cross section in a cross shape is arranged on the side, facing the power distribution box body (4), of the vertical strut (10); the cross-shaped brackets (15) are respectively pressed on the side walls of the box-shaped reinforcing ribs (3); external concrete pouring equipment is adopted to pour concrete into a cavity formed by enclosing the wall back template (12), the wall surface template (11), the corner wall template (16) and the press-in splicing template (19) to form a structural wall (20); after the structural wall (20) is formed with strength, the support of the cross-shaped support frame is removed, and then the corner wall formwork (16), the wall surface formwork (11) and the wall back formwork (12) are sequentially removed;
4) installing and positioning the distribution box body: sequentially erecting a platform support column (21) and a platform top plate (22) on a lower floor panel (1), arranging a counter-force support column (23) on the platform top plate (22), vertically welding a guide sleeve (24) on the counter-force support column (23) facing to a distribution box body (4), arranging a guide pressure rod (28) in the guide sleeve (24) to slide, arranging a pressure rod support plate (29) on the top surface of the guide pressure rod (28), arranging a pushing pressure plate (31) at the joint of the pressure rod support plate (29) and the distribution box body (4), arranging an annular template (32) on the periphery of the distribution box body (4) along the annular direction, taking out a sealing bag (9) by extracting a pull rope (34) connected with the sealing bag (9), synchronously pushing the pressure plate (31) to push the distribution box body (4) and the annular template (32), and pressing the distribution box body (4) into a reserved notch of a structure wall (20);
5) and (3) carrying out solid construction outside the box: connecting the connecting pipe section (35) with an indwelling nut (8), grouting a gap on the periphery of the power distribution box body (4) through a pressure grouting hole (36) formed in the bottom of the annular template (32) to form a box outer dense entity (37), synchronously determining the tightness of grouting through a grouting observation hole (38) in the annular template (32), and synchronously enabling the interface rib net (33) to be connected with the surface of the structural wall (20) in a sticking manner;
6) and (3) decorative surface layer construction: a closed bag (39) and a sealing panel (40) are arranged in a distribution box body (4), the closed bag (39) is pressed with slurry through a bag pressurizing pipe (41) on the sealing panel (40) to form a bag filling body (42), the sealing panel (40) is enabled to be flush with the outer surface of a wall surface decorative layer (43), and then the wall surface decorative layer (43) is constructed.
2. The construction method of the concealed distribution box according to claim 1, wherein in the step 3), the cross-shaped support frame (8) is of a cross structure, first position control bolts (17) and second position control bolts (18) which are arranged in a staggered mode are arranged on two sides of the cross-shaped support frame (8), and the press-in split die (19) is arranged at the end portion of each second position control bolt (18); the end part of the second position control bolt (18) is arranged at the position of the distribution box body (4) and is provided with a corner wall mold (16), the first position control bolt (17) limits the vertical position of the corner wall mold (16), and then the second position control bolt (18) presses the press-in splicing mold (19) to be pressed between two corner wall molds (16) with opposite mirror images.
3. The construction method of the concealed distribution box according to claim 1, wherein after the concrete of the structural wall (20) has formed strength, a pulling force is applied to the press-in split mold (19) through the second position control bolt (18) to release the constraint of the press-in split mold (19) on the corner wall mold (16).
4. The construction method of the concealed distribution box according to claim 1, wherein the upper surface and the lower surface of the guide sleeve (24) are respectively welded with a reaction support plate (25), 1 group of first control bodies (26) and 1 group of second control bodies (27) are welded on the reaction support plate (25) on the upper surface of the guide sleeve (24) at intervals, 1 group of second control bodies (27) are welded on the reaction support plate (25) on the lower surface of the guide sleeve (24), and the other end of the first control body (26) is vertically welded with a pressure rod support plate (29) on the top surface of the guide pressure rod (28); 1 group of internal support control bodies (30) are respectively arranged on the upper surface and the lower surface of the pressure rod supporting plate (29).
5. The construction method of the concealed type distribution box according to claim 4, wherein the annular form (32) is connected to the second control body (27), and the distribution box body (4) and the annular form (32) are synchronously pushed by the first control body (26) and the second control body (27).
6. The construction method of the concealed type distribution box according to claim 4, wherein the reaction bracing plate (25) is arranged perpendicular to the guide sleeve (24), the second control body (27) is arranged at the outer end side of the first control body (26), the guide pressure rod (28) is arranged in the guide sleeve (24) to slide, and the top surface of the guide pressure rod (28) is provided with a pressure bracing plate (29).
7. The construction method of the concealed type distribution box according to claim 1, wherein the interface rib net (33) is laid along the joint surface of the distribution box body (4) and the annular formwork (32).
8. The construction method of the concealed type distribution box according to claim 4, wherein the cross section of the press-in split die (19) is in an isosceles trapezoid shape, and an inclined surface connected with the press-in split die (19) is arranged on the corner wall die (16).
9. The construction method of the concealed type distribution box according to claim 1, wherein the cross section of the annular template (32) is in a step shape, a pressure grouting hole (36) is formed in the bottom of the annular template (32), and a grouting observation hole (38) is formed in the top of the annular template.
10. The construction method of the concealed type distribution box according to claim 1, wherein the cross section of the distribution box body (4) is rectangular, and a box body connecting hole (45) is formed in the outer side wall.
CN202111562799.XA 2021-12-20 2021-12-20 Construction method of concealed distribution box Pending CN114215227A (en)

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Application Number Priority Date Filing Date Title
CN202111562799.XA CN114215227A (en) 2021-12-20 2021-12-20 Construction method of concealed distribution box

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Application Number Priority Date Filing Date Title
CN202111562799.XA CN114215227A (en) 2021-12-20 2021-12-20 Construction method of concealed distribution box

Publications (1)

Publication Number Publication Date
CN114215227A true CN114215227A (en) 2022-03-22

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000170285A (en) * 1998-12-08 2000-06-20 Kajima Corp Connecting method for steel sheet concrete structural wall and junction structure
CN204126213U (en) * 2014-08-20 2015-01-28 江苏扬安集团有限公司 The direct-burried construction system of distributing box in the in-situ concrete wall having decorative layer
CN107269001A (en) * 2017-07-28 2017-10-20 北京城建远东建设投资集团有限公司 Concealed distribution box is with the whole construction method poured of concrete wall structure
CN110424722A (en) * 2019-08-08 2019-11-08 倡创(上海)咨询管理事务所 Integral assembling large form narrow space wall and construction method
CN211007173U (en) * 2019-07-23 2020-07-14 华神建设集团有限公司 Prefabricated member built masonry infilled wall
CN211421842U (en) * 2019-07-23 2020-09-04 杭州江润科技有限公司 Built-in spool mounting structure of wall body
CN213367337U (en) * 2020-10-12 2021-06-04 那建民 Embedded fixing device for shear wall of concealed assembly electronic box body in building electrical installation engineering
CN113027129A (en) * 2021-03-24 2021-06-25 甘肃建投建设有限公司 Embedded integrated distribution box and construction method
CN113585221A (en) * 2021-09-09 2021-11-02 安徽省新路建设工程集团有限责任公司 Vacuum preloading and dynamic compaction combined reinforcing system for deep soft soil and construction method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000170285A (en) * 1998-12-08 2000-06-20 Kajima Corp Connecting method for steel sheet concrete structural wall and junction structure
CN204126213U (en) * 2014-08-20 2015-01-28 江苏扬安集团有限公司 The direct-burried construction system of distributing box in the in-situ concrete wall having decorative layer
CN107269001A (en) * 2017-07-28 2017-10-20 北京城建远东建设投资集团有限公司 Concealed distribution box is with the whole construction method poured of concrete wall structure
CN211007173U (en) * 2019-07-23 2020-07-14 华神建设集团有限公司 Prefabricated member built masonry infilled wall
CN211421842U (en) * 2019-07-23 2020-09-04 杭州江润科技有限公司 Built-in spool mounting structure of wall body
CN110424722A (en) * 2019-08-08 2019-11-08 倡创(上海)咨询管理事务所 Integral assembling large form narrow space wall and construction method
CN213367337U (en) * 2020-10-12 2021-06-04 那建民 Embedded fixing device for shear wall of concealed assembly electronic box body in building electrical installation engineering
CN113027129A (en) * 2021-03-24 2021-06-25 甘肃建投建设有限公司 Embedded integrated distribution box and construction method
CN113585221A (en) * 2021-09-09 2021-11-02 安徽省新路建设工程集团有限责任公司 Vacuum preloading and dynamic compaction combined reinforcing system for deep soft soil and construction method

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Application publication date: 20220322