CN112796518A - Pipeline reserved hole plugging die and construction method - Google Patents
Pipeline reserved hole plugging die and construction method Download PDFInfo
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- CN112796518A CN112796518A CN202110119553.9A CN202110119553A CN112796518A CN 112796518 A CN112796518 A CN 112796518A CN 202110119553 A CN202110119553 A CN 202110119553A CN 112796518 A CN112796518 A CN 112796518A
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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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
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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
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/06—Forms or shutterings for making openings, cavities, slits, or channels for cavities or channels in walls of floors, e.g. for making chimneys
- E04G15/063—Re-usable forms
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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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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Abstract
The invention discloses a pipeline reserved hole blocking mold and a construction method, wherein the mold comprises two semicircular bottom molds which are opposite to each other, a first lap joint part is fixedly arranged at one end of the bottom mold along the circumferential direction, the top of the first lap joint part is flush with the top of the bottom mold, a second lap joint part is fixedly arranged at the other end of the bottom mold along the circumferential direction, the second lap joint part is positioned below the first lap joint part and is in lap joint with the first lap joint part, a semicircular hoop is fixedly connected to the bottom of the bottom mold, and the two hoops are opposite to each other and are detachably connected together. The invention has the beneficial effects that: the method solves the defects of untight hole sealing gap, slippage of the anchor ear, deformation and dislocation of the bottom die, slurry leakage of the sealing part and the like, can effectively prevent the hidden danger of leakage of the contact surface, and realizes the lifting die sealing of the reserved hole of the pipeline and the quality improvement of the building installation engineering.
Description
Technical Field
The invention relates to the technical field of plugging molds, in particular to a pipeline reserved hole plugging mold and a construction method.
Background
When a cast-in-place structure of a building is constructed, in order to meet the requirement of installing indoor water supply and drainage pipelines, a pipeline hole or a pre-buried sleeve is reserved on a cast-in-place floor, and after the pipeline is installed, the reserved hole needs to be blocked. In the prior art, the common construction method for plugging the pipeline holes is as follows:
1. the method comprises the steps of adopting a wood plywood as a plugging bottom film of a reserved hole, firstly opening a hole on a bottom die according to the outer diameter of a pipeline, then cutting a template into two halves through the center of the hole, sleeving a butt joint ring on the periphery of the pipeline, fixing the bottom die by using short steel bars as keels of the bottom die through a wire suspension method, and cutting off wires to remove the bottom film after plugging concrete reaches a certain strength.
The construction method has the advantages of low construction speed, complex working procedures, low working efficiency and insufficient formwork hanging strength, when the holes are used for plugging and pouring concrete, the bottom formwork deforms and leaks slurry due to external force vibration, if the vibration is insufficient, the concrete pouring quality is not compact, the stubble surface is easy to leak, and the structural quality is influenced; and when the iron wire is rusted, the hidden danger of leakage is easy to appear, the cost of occupied turnover materials is high, the process has serious defects, and most construction sites are banned from being adopted.
2. Through building installation construction practice and the research and development of new technology, new product, use the special shutoff mould of pipeline preformed hole that PVC material processing formed to promote at present, this mould installation is fast, the dismantlement is convenient to can used repeatedly, have stronger practicality, can realize the gap between cast-in-place board and the pipeline behind the quick shutoff pipeline installation.
As shown in figure 1, the product comprises two PVC semicircular bottom dies and semi-cylindrical hoops respectively connected with the PVC semicircular bottom dies, the two semicircular bottom dies are combined into an annular plate, the inner diameter of the annular plate is the same as the outer diameter of a pipeline, the outer diameter of the annular plate is 100-150 mm larger than the outer diameter of the pipeline, and a gap between a reserved hole of a floor slab and the pipeline can be blocked. Two semicircular bottom moulds are clamped on the pipeline, the upper surfaces of the two semicircular bottom moulds are attached to the bottom surface of the floor slab, the bottom moulds and the pipeline are fixed together by using butterfly bolts on the anchor ears, and gaps of reserved holes of the pipeline are sealed.
In the new stage of high-quality development of modern building industry, the quality of building products and production process are inseparable, and the improvement and promotion of the product quality can be realized only by continuously improving and perfecting the process quality. Although the special mould for the pipeline hanging hole made of the PVC material fundamentally solves the problem that the pipeline preformed hole is difficult to block and fills a gap in the building and installation industry, in actual construction, due to the influence of product details and human factors, the following aspects needing to be improved exist in the field operation process:
1. the annular plate of the die is used as a bottom die for plugging the reserved hole, and is difficult to be completely attached to the bottom surface of the floor slab after installation, so that on one hand, the flatness of the bottom of the slab is difficult to achieve absolute flatness, and a natural gap exists between the bottom die and the bottom of the slab; on the other hand, the mould is lack of a measure for enabling the mould to be reliably stressed and tightly adhered to the bottom of the plate, and the bottom mould cannot be effectively pressed and tightly pressed in advance, so that only the fixed anchor ear can play a role when the bottom mould sinks, commonly called as 'equal strength', the annular plate generates inelastic deformation under the action of concrete pouring load, and the phenomenon of slurry leakage and even mould expansion caused by improper reinforcement is easily caused.
2. The contact surface of staple bolt and pipeline is all more smooth, and although adopting the bolt card to fix, nevertheless because the fastening atress can not evenly transmit, the staple bolt produces easily at the concrete vibration in-process and removes or the landing.
3. The annular plate bottom dies are easy to deform after being used for many times, and particularly, a large gap exists between the bottom dies and the plate bottom at the butt joint of the two bottom dies after the bottom dies are installed, or the two bottom dies are staggered, so that slurry leakage at the plugging part and poor flatness of the construction surface are caused.
4. Drainage pipe is mostly the PVC material, and the surface is smooth, and during later stage shutoff hole, the concrete shrinkage deformation that the secondary was pour, the cohesiveness is bad between PVC pipeline and concrete, and the seepage easily takes place for the contact surface. Therefore, the design of the hole sealing mould needs to consider the waterproof and impervious structural treatment, and the hidden danger of leakage is avoided.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
Aiming at the technical problems in the related art, the invention provides a pipeline preformed hole plugging die and a construction method, which can overcome the defects in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows:
the utility model provides a hole shutoff mould is reserved to pipeline, includes two semicircular die blocks of opposition each other, the die block has set firmly first overlap joint portion along the one end of circumference direction, the top of first overlap joint portion with the top parallel and level of die block, the die block has set firmly second overlap joint portion along the other end of circumference direction, second overlap joint portion is located the below of first overlap joint portion and with the cooperation of first overlap joint portion overlap joint, the bottom fixedly connected with semicircle cylindrical's staple bolt of die block, two the staple bolt opposition each other links together dismantled and assembledly.
Further, the distance between the top of the second overlapping part and the top of the bottom die is equal to the distance between the top of the first overlapping part and the bottom of the first overlapping part.
Furthermore, the two ends of the hoop in the circumferential direction are respectively and fixedly provided with a wedge-shaped lug, the two wedge-shaped lugs which are in contact with each other jointly form an inverted trapezoidal structure, and a wedge-shaped sleeve clamp matched with the inverted trapezoidal structure is sleeved outside the inverted trapezoidal structure.
Furthermore, a vertical anti-slip groove is formed in the wedge-shaped convex block, a vertical anti-slip bulge is fixedly arranged on the wedge-shaped jacket clamp, the anti-slip bulge is in sliding fit with the anti-slip groove in the vertical direction, and transverse anti-slip insections matched with each other are fixedly arranged on the wedge-shaped convex block and the wedge-shaped jacket clamp.
Furthermore, the wedge-shaped collet comprises two L-shaped clamping pieces, wherein a bolt is fixedly connected to the outer side of one of the clamping pieces, and a long round hole corresponding to the bolt is formed in the other clamping piece.
The invention also provides a construction method of the pipeline reserved hole plugging die, which comprises the following steps:
s1, chiseling and cleaning the opening of the reserved hole, wetting, sleeving two semicircular bottom moulds and anchor ear rings on the pipeline, attaching the bottom moulds to the bottom surface of the floor slab, clamping the two anchor ears on the periphery of the pipeline and closely attaching the anchor ears to the pipeline after the bottom moulds are mutually butted, and mutually butting the wedge-shaped lugs on the two anchor ears into an inverted trapezoidal structure;
s2, sleeving a wedge-shaped sleeve clamp into the inverted trapezoidal structure from the bottom of the anchor ear upwards, enabling an anti-skidding bulge on the wedge-shaped sleeve clamp to be matched with an anti-skidding groove on the wedge-shaped bump, then knocking the wedge-shaped sleeve clamp upwards, enabling the wedge-shaped sleeve clamp to be gradually clamped with the inverted trapezoidal structure upwards along the anti-skidding groove and to be propped against the bottom of the bottom die;
s3, pouring concrete to block the reserved hole;
s4, removing the bottom die when the concrete reaches the specified strength;
and S5, cleaning the bottom die for later use.
Further, the method also comprises the following steps:
s0, when the pipeline is installed, a rubber water-stopping rubber ring is sleeved outside the pipeline and is positioned in the middle of the floor slab.
Further, step S3 specifically includes: cleaning and moistening the inside and the periphery of the reserved hole again, coating cement slurry doped with 8% of waterproof powder on the periphery of the hole opening of the reserved hole once, pouring for the first time until the concrete is poured to be half of the thickness of the floor slab, manually inserting, tamping, pouring for the second time when the concrete is initially set until the concrete in the range of 100mm on the periphery of the pipeline is 10-15 mm higher than the floor slab, and then enabling the concrete to be outwards pitched to form a water blocking ring.
Further, step S4 specifically includes: firstly, loosening the nut on the wedge-shaped sleeve clamp, horizontally shifting one clamping piece, releasing the fastening of the wedge-shaped sleeve clamp to the anchor ear, then slightly prying the bottom die to separate the bottom die from the concrete, and then respectively taking down the two bottom dies to finish the disassembly of the bottom die.
Further, step S5 specifically includes: and immediately cleaning mortar on the surface of the bottom die, coating a release agent, placing the bottom die in a dry place for storage, and performing anticorrosive and antirust treatment.
The invention has the beneficial effects that: the defects of untight hole sealing gap, slippage of anchor ear, deformation and dislocation of bottom die, slurry leakage at the sealing part and the like are overcome, the hidden danger of leakage of a contact surface can be effectively prevented, and the suspended die sealing of the reserved hole of the pipeline and the quality improvement of building installation engineering are realized; the structure is simple, the cost is low, the method is particularly suitable for industrial mass production, and the method is suitable for plugging reserved holes of PVC pipes, galvanized pipes and various metal and non-metal pipelines; the steel plate has the advantages of high strength, no deformation, good universality and turnover, high construction speed, simple and quick field installation and disassembly, stability and reliability; the construction process is simplified, the field operation work amount is reduced, the work efficiency is improved, a large amount of auxiliary materials and installation and disassembly work cost are saved, the construction cost is reduced, and the energy conservation and environmental protection are realized; the hidden leakage danger of the plugging of the reserved hole can be effectively prevented, the flatness and the smoothness of the operation surface are good, the construction quality of a cast-in-place structure and the installation quality of water supply and drainage engineering are effectively improved, the development of the traditional construction process to instrumentization and standardization is promoted, and the hidden leakage prevention device has good practicability and popularization value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a plugging mold special for a pipeline preformed hole in the prior art;
fig. 2 is a schematic view of a pipe preformed hole plugging mold according to an embodiment of the invention;
FIG. 3 is a top view of an optimized mold according to an embodiment of the present invention;
FIG. 4 is an exploded view of an optimized mold according to an embodiment of the present invention;
FIG. 5 is a schematic view of a wedge shaped collet according to an embodiment of the present invention;
fig. 6 is a first schematic view of a clip according to an embodiment of the invention:
FIG. 7 is a second schematic view of a clip according to an embodiment of the invention;
fig. 8 is a schematic view of a pipe preformed hole plugging die according to an embodiment of the invention in use.
In the figure:
1. bottom die; 2. a first lap joint portion; 3. a second lap joint portion; 4. hooping; 5. a wedge-shaped projection; 6. a wedge-shaped sleeve clamp; 7. a clip; 8. a bolt; 9. a long round hole; 10. a floor slab; 11. rubber sealing rubber ring.
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.
As shown in fig. 2 to 8, the pipe preformed hole plugging mold according to the embodiment of the present invention includes two semicircular bottom molds 1 opposite to each other, a first overlapping portion 2 is fixedly disposed at one end of the bottom mold 1 along a circumferential direction, a top of the first overlapping portion 2 is flush with a top of the bottom mold 1, a second overlapping portion 3 is fixedly disposed at the other end of the bottom mold 1 along the circumferential direction, the second overlapping portion 3 is located below the first overlapping portion 2 and is in overlapping fit with the first overlapping portion 2, a semicircular hoop 4 is fixedly connected to a bottom of the bottom mold 1, and the two hoop 4 are opposite to each other and detachably connected together.
In a specific embodiment of the present invention, the distance between the top of the second strap 3 and the top of the bottom mold 1 is equal to the distance between the top of the first strap 2 and the bottom of the first strap 2.
In a specific embodiment of the present invention, two ends of the hoop 4 along the circumferential direction are respectively and fixedly provided with a wedge-shaped protrusion 5, two wedge-shaped protrusions 5 contacting with each other form an inverted trapezoid structure, and a wedge-shaped jacket clamp 6 matching with the inverted trapezoid structure is sleeved outside the inverted trapezoid structure.
In a specific embodiment of the present invention, a vertical anti-slip groove is formed on the wedge-shaped protrusion 5, a vertical anti-slip protrusion is fixedly arranged on the wedge-shaped jacket clamp 6, the anti-slip protrusion and the anti-slip groove are slidably engaged in a vertical direction, and mutually engaged horizontal anti-slip insections are fixedly arranged on the wedge-shaped protrusion 5 and the wedge-shaped jacket clamp 6.
In a specific embodiment of the present invention, the wedge-shaped collet 6 includes two L-shaped clamping pieces 7, wherein a bolt 8 is fixedly connected to an outer side of one of the clamping pieces 7, and an oblong hole 9 corresponding to the bolt 8 is formed in the other clamping piece 7.
The invention also provides a construction method of the pipeline reserved hole plugging die, which comprises the following steps:
s1, firstly chiseling and cleaning and wetting the hole of the reserved hole, then sleeving two semicircular bottom moulds 1 and anchor ears 4 on the pipeline in a sleeving manner, enabling the two semicircular bottom moulds to be attached to the bottom surface of a floor slab 10, after the bottom moulds 1 are mutually butted, clamping the two anchor ears 4 on the periphery of the pipeline and closely attaching the two anchor ears 4 to the pipeline, and mutually butting wedge-shaped lugs 5 on the two anchor ears 4 to form an inverted trapezoidal structure;
s2, sleeving a wedge-shaped sleeve clamp 6 into the inverted trapezoidal structure from the bottom of the anchor ear 4 upwards, enabling an anti-skid protrusion on the wedge-shaped sleeve clamp 6 to be matched with an anti-skid groove on the wedge-shaped bump 5, and then knocking the wedge-shaped sleeve clamp 6 upwards to enable the wedge-shaped sleeve clamp to be gradually clamped with the inverted trapezoidal structure upwards along the anti-skid groove and to be propped against the bottom of the bottom die 1;
s3, pouring concrete to block the reserved hole;
s4, when the concrete reaches the specified strength, the bottom die 1 is dismantled;
and S5, cleaning the bottom die 1 for later use.
In a specific embodiment of the present invention, the method further comprises the following steps:
s0, when the pipeline is installed, the rubber water-stopping rubber ring 11 is sleeved outside the pipeline, and the rubber water-stopping rubber ring 11 is located in the middle of the floor slab 10.
In an embodiment of the present invention, step S3 specifically includes: cleaning and moistening the inside and the periphery of the reserved hole again, coating cement slurry doped with 8% of waterproof powder on the periphery of the hole of the reserved hole once, pouring for the first time until the concrete is poured to be half of the thickness of the floor slab 10, manually inserting, tamping, pouring for the second time when the concrete is initially set until the concrete in the range of 100mm of the periphery of the pipeline is 1010-15 mm higher than the floor slab, and then enabling the concrete to slope outwards to form a water blocking ring.
In an embodiment of the present invention, step S4 specifically includes: firstly, loosening the nut on the wedge-shaped sleeve clamp 6, horizontally shifting one clamping piece 7, releasing the fastening of the wedge-shaped sleeve clamp 6 to the anchor ear 4, then slightly prying the bottom die 1 to separate the bottom die 1 from the concrete, and then respectively taking down the two bottom dies 1 to finish the disassembly of the bottom die 1.
In an embodiment of the present invention, step S5 specifically includes: immediately cleaning mortar on the surface of the bottom die 1, coating a release agent, placing the bottom die in a dry place for storage, and performing anticorrosive and antirust treatment.
In order to facilitate understanding of the above-described embodiments of the present invention, the following detailed description of the embodiments of the present invention is provided by way of specific usage.
The pipeline preformed hole plugging die comprises an optimizing die, a wedge-shaped sleeve clamp, a rubber water-stopping rubber ring and the like. The optimization die is made of PE materials and customized by a professional manufacturer, and optimization and improvement are carried out on the pipeline hanging hole die based on the prior art. The optimized mould comprises two semicircular bottom moulds 1 and semicircular hoops 4 which are respectively connected with the two semicircular bottom moulds, the two bottom moulds 1 are combined into an annular plate, the annular plate can realize staggered overlapping of an opening type seam through a first overlapping part 2 and a second overlapping part 3, the inner diameter of the annular plate is the same as the outer diameter of a pipeline, and the outer diameter of the annular plate is 150mm larger than the outer diameter of the pipeline; staple bolt 4 and die block 1 are integrated into one piece structure and perpendicular setting, and 4 internal diameters of staple bolt are the same with the pipeline external diameter, and the both ends edge of staple bolt 4 is equipped with wedge lug 5, is equipped with vertical anti-skidding groove and horizontal anti-skidding insection on the wedge lug 5.
During specific use, firstly, the pipeline is installed according to the water supply and drainage professional drawings, and during the pipeline installation, the rubber water stop rubber ring 11 which is sleeved in advance at the position between two sides of the thickness of the floor slab 10 enables a water stop structure to be formed between the PVC pipeline and concrete, so that the peripheral leakage of the pipeline is effectively prevented.
Plugging reserved holes of pipelines can be carried out after the pipelines are qualified in installation and acceptance, firstly, roughening the holes and cleaning and wetting are carried out, then an optimized mold is installed, two bottom molds 1 and an anchor ear 4 are sleeved on the pipelines in a sleeving manner and are attached to the bottom surface of a floor slab 10, the two bottom molds 1 are in open type joint staggered lap joint and are attached to the bottom surface of the floor slab 10, staggered platforms and gaps between the bottom molds 1 can be avoided, and the flatness of the structure surface is ensured; after the bottom dies 1 are mutually butted, the two anchor ears 4 are clamped at the periphery of the pipeline and are closely attached to the pipeline, the wedge-shaped lugs 5 at the edges of the two anchor ears 4 are butted to form an inverted trapezoidal structure, an operator utilizes the steel wedge-shaped sleeve clamp 6 to upwards sleeve the inverted trapezoidal structure from the bottom of the anchor ear 4 and enables the wedge-shaped sleeve clamp 6 to be matched with the vertical anti-skidding grooves on the wedge-shaped lugs 5, then the operator holds a rubber hammer to upwards knock the wedge-shaped sleeve clamp 6 by hand, the wedge-shaped sleeve clamp is gradually upwards clamped with the wedge-shaped lugs 5 along the anti-skidding grooves and is propped against the bottom of the annular plate, and the wedge-shaped lug 5 can be clamped by elastic extension tension of the wedge-shaped sleeve clamp 6 because the internal dimension of the wedge-shaped sleeve clamp 6 is; meanwhile, upward jacking force is transmitted to the annular plate in the process of knocking the wedge-shaped sleeve clamp 6 tightly, pressure is applied to the bottom die 1 in advance to jack the bottom die tightly, the bottom die is ensured to be closely attached to the bottom surface of the floor slab 10, gaps between the bottom die 1 and the bottom surface of the floor slab 10 after installation are eliminated, and slurry leakage is avoided in the pouring process, and the bottom of the slab at the hole sealing position is smooth and attractive; in addition, the occlusal surfaces of the wedge-shaped collets 6 and the wedge-shaped bumps 5 are provided with transverse anti-skidding insections which play a role together with the vertical anti-skidding grooves, so that the wedge-shaped collets 6 can be prevented from loosening and losing efficacy under the influence of external force, and the inner side surface of the hoop 4 is also provided with the transverse anti-skidding insections, so that the die can be prevented from moving or sliding off after being installed; in addition, the anchor ear 4 and the fixed mode of pipeline have cancelled traditional bolt fastening and have changed into the collet to consolidate, and wedge collet 6 exerts the extension pressure in the vertical height within range of anchor ear 4 whole journey, can guarantee that the mould is whole to be stressed evenly, the fastening is reliable, further prevents that the mould from producing displacement or deformation in the concrete vibrating process.
And (4) plugging the reserved holes after the installation and acceptance of the optimized mould, wherein the concrete adopts fine aggregate concrete with the same label as the cast-in-place slab, and a proper amount of expanding agent is added. Before the hole is reserved for blocking concrete, the inside and the periphery of the hole are cleaned and moistened again, the periphery of a hole opening is coated with cement paste (doped with 8% of waterproof powder) once, and the hole is blocked by pouring twice, so that the leakage caused by cracks caused by concrete shrinkage is prevented. The concrete is poured to half of the thickness of the floor slab 10 for the first time, the concrete is manually inserted and tamped, the concrete is poured for the second time when the concrete is initially set, the concrete in the range of 100mm at the root of the pipeline needs to be 10-15 mm higher than the top surface of the floor slab 10, and the concrete is inclined outwards to form a water blocking ring. And (5) after the concrete is finally set, watering and covering the film for curing, wherein the curing time is not less than 7 days.
And (3) dismantling the optimized mold when the concrete reaches the specified strength, firstly loosening the M5 nut on the wedge-shaped sleeve clamp 6, shifting the clamping piece 7 on the right side outwards, so that the fastening of the wedge-shaped sleeve clamp 6 to the optimized mold can be released, then slightly prying the annular plate to separate the annular plate from the concrete, then respectively taking down the two bottom molds 1 to complete the dismantling of the optimized mold, and collecting and cleaning the optimized mold in time for turnover use after the optimized mold is dismantled.
The specific manufacturing steps are as follows:
(1) and (5) manufacturing an optimized die.
The optimizing die is made of PE materials and customized by a professional manufacturer, and the optimizing die is optimized and improved based on the pipeline hanging hole die in the prior art. The two bottom dies 1 are respectively connected with three PE reinforcing rib plates in a radial mode, the width of each rib plate is 15mm, the height of each rib plate is 10-25 mm, and the height of each rib plate gradually changes from the center to the circumference; the two bottom dies 1 are combined to form an annular plate, the thickness of the annular plate is 8mm, the two ends of the annular plate are in open type joint staggered lap joint, the lap joint length is 40mm, the inner diameter of the annular plate is the same as the outer diameter of the pipeline, and the outer diameter of the annular plate is 150mm larger than the outer diameter of the pipeline; staple bolt 4 and die block 1 are integrated into one piece structure and perpendicular setting, and 4 internal diameters of staple bolt are the same with the pipeline external diameter, and 4 edges of staple bolt are equipped with wedge lug 5, are equipped with vertical antiskid ribbed tile and horizontal anti-skidding insection on the wedge lug 5.
After the two bottom dies 1 are in plane butt joint, the opening seams at the joints of the annular plates are in staggered lap joint, the hoops 4 are mutually in butt joint to form cylinders, and the wedge-shaped lugs 5 on the two sides are in butt joint to form an inverted trapezoidal structure.
(2) A wedge-shaped jacket clamp 6 is manufactured.
The wedge-shaped sleeve clamp 6 is formed by combining two clamping pieces 7 through a bolt 8 and a nut of M5, the clamping pieces 7 are formed by rolling 2.5mm thick steel plates, the inner sides of the clamping pieces 7 are respectively provided with anti-skidding bulges with arc-shaped cross sections, and the sizes of the anti-skidding bulges are matched with the anti-skidding grooves on the wedge-shaped convex blocks 5.
(3) And preparing the rubber water stop rubber ring 11.
The water-swelling rubber water stop ring is refined from a high-molecular inorganic water-swelling material and rubber and is customized by a professional manufacturer according to the specification of a pipeline. The rubber water stopping rubber ring 11 can absorb water to expand after meeting water, and the gap between concrete and a pipeline is plugged by self expansion and compaction, so that the water stopping effect is achieved.
The concrete construction steps are as follows:
(1) and (6) installing a pipeline.
The method comprises the steps of rechecking and reserving a hole according to design coordinates, wherein when chiseling is needed, the size of the hole is not too large, stressed steel bars cannot be damaged, and an operation platform is erected according to needs after a site is cleaned. Before the pipeline is installed, the position of the pipe support is determined according to drawing coordinates, the support hanging frame is preassembled, the installation is started after the civil engineering wall surface is painted, and after the central line of the pipeline is determined, the pipeline and the pipe fittings are installed at one time and connected with the pipe orifices.
When the pipeline is installed, two persons are matched up and down, one person puts a rope into the reserved hole on the upper floor, the upper half of the prefabricated pipeline is firmly fastened by the other person, and the lower socket of the pipeline is inserted into the socket of the lower pipe by pulling up and pulling down the support. After the pipeline is inserted into the bell mouth, the lower layer of people aligns the direction of the flail mouth and the pipeline inspection mouth, the upper layer of people firmly clamps the pipeline at the plate hole by the wooden wedge temporarily, then rechecks the verticality of the pipeline, and aligns, bonds and fixes the interface. The direction of the three-way opening of the pipeline is aligned to the direction of the transverse pipe, and the clear distance between the center of the three-way opening and the floor slab 10 is not less than 250mm and not more than 450 mm.
And then installing the transverse branch pipes according to the coordinates and elevations of the drawing, transporting the prefabricated branch pipes to the site according to the numbers, removing dirt at the bonding parts, horizontally hoisting the branch pipes, righting the coordinate positions of the reserved openings, smearing the adhesive, and forcibly pushing the branch pipes into the reserved pipe openings. The slope is adjusted according to the length of the pipe section. And (5) fixing the clamping frame after the clamping frame is suitable, and sealing the reserved pipe orifices and the blocked holes.
And then, installing cleaning equipment such as an inspection opening, a cleaning opening and the like, installing sanitary ware connecting pipes, and checking the method and the thickness of the floor and the wall of the building. And finding out the coordinates and elevation of the reserved opening. And then trimming the hole of the reserved hole according to the accurate size. And recording the actual measurement sizes of the parts, and performing and numbering. When the pipe is installed and bonded, the reserved pipe orifice must be cleaned and then bonded. And (5) aligning and straightening after firmly adhering.
(2) And installing a rubber water stop rubber ring 11.
When the pipeline is installed, the rubber water stop rubber ring 11 is sleeved in the middle position of the thickness of the floor slab 10 in advance, so that a water stop structure is formed between the PVC pipeline and the concrete, the water stop rubber ring can absorb water and expand after meeting water, and the gap between the concrete and the pipeline is tightly plugged by self expansion and compaction, so that the water stop effect is achieved, and the peripheral leakage of the pipeline is effectively prevented.
(3) And installing an optimized die.
Plugging reserved holes of pipelines can be carried out after the pipelines are qualified in installation and acceptance, firstly, roughening the holes and cleaning and wetting are carried out, then an optimized mold is installed, two bottom molds 1 and an anchor ear 4 are sleeved on the pipelines in a sleeving manner and are attached to the bottom surface of a floor slab 10, the two bottom molds 1 are in open type joint staggered lap joint and are attached to the bottom surface of the floor slab 10, staggered platforms and gaps between the bottom molds 1 can be avoided, and the flatness of the structure surface is ensured; after the bottom die 1 is mutually butted, the two anchor ears 4 are clamped at the periphery of the pipeline and are closely attached to the pipeline, and the wedge-shaped lugs 5 at the edges of the two anchor ears 4 are butted to form an inverted trapezoidal structure.
(4) The wedge-shaped jacket clamp 6 is fixed.
An operator holds the rubber hammer to knock the wedge-shaped sleeve clamp 6 upwards to enable the wedge-shaped sleeve clamp to be gradually clamped with the wedge-shaped bump 5 upwards along the anti-skid groove and to be propped against the bottom of the annular plate, and as the inner size of the wedge-shaped sleeve clamp 6 is smaller than the outer size of the wedge-shaped bump 5 by 2mm, the wedge-shaped bump 5 can be clamped through the elastic stretching force of the wedge-shaped sleeve clamp 6, so that the hoop 4 is fixed with the pipeline; meanwhile, upward jacking force is transmitted to the annular plate in the process of knocking the wedge-shaped sleeve clamp 6 tightly, pressure is applied to the bottom die 1 in advance to jack the bottom die tightly, the bottom die is ensured to be closely attached to the bottom surface of the floor slab 10, gaps between the bottom die 1 and the bottom surface of the floor slab 10 after installation are eliminated, and slurry leakage is avoided in the pouring process, and the bottom of the slab at the hole sealing position is smooth and attractive; in addition, the occlusal surfaces of the wedge-shaped collets 6 and the wedge-shaped bumps 5 are provided with transverse anti-skidding insections which play a role together with the vertical anti-skidding grooves, so that the wedge-shaped collets 6 can be prevented from loosening and losing efficacy under the influence of external force, and the inner side surface of the hoop 4 is also provided with the transverse anti-skidding insections, so that the die can be prevented from moving or sliding off after being installed; in addition, the anchor ear 4 and the fixed mode of pipeline have cancelled traditional bolt fastening and have changed into the collet to consolidate, and wedge collet 6 exerts the extension pressure in the vertical height within range of anchor ear 4 whole journey, can guarantee that the mould is whole to be stressed evenly, the fastening is reliable, further prevents that the mould from producing displacement or deformation in the concrete vibrating process.
(5) And pouring plugging concrete.
And (4) plugging the reserved holes after the installation and acceptance of the optimized mould, wherein the concrete adopts fine aggregate concrete with the same label as the cast-in-place slab, and a proper amount of expanding agent is added. Before the hole is reserved for blocking concrete, the inside and the periphery of the hole are cleaned and moistened again, the periphery of a hole opening is coated with cement paste (doped with 8% of waterproof powder) once, and the hole is blocked by pouring twice, so that the leakage caused by cracks caused by concrete shrinkage is prevented. The concrete is poured to half of the thickness of the floor slab 10 for the first time, the concrete is manually inserted and tamped, the concrete is poured for the second time when the concrete is initially set, the concrete in the range of 100mm at the root of the pipeline needs to be 10-15 mm higher than the top surface of the floor slab 10, and the concrete is inclined outwards to form a water blocking ring. And (5) after the concrete is finally set, watering and covering the film for curing, wherein the curing time is not less than 7 days.
(6) And disassembling the optimized mould.
And (3) dismantling the optimized mold when the concrete reaches the specified strength, firstly loosening the M5 nut on the wedge-shaped sleeve clamp 6, shifting the clamping piece 7 on the right side outwards, so that the fastening of the wedge-shaped sleeve clamp 6 to the optimized mold can be released, then slightly prying the annular plate to separate the annular plate from the concrete, and then respectively taking down the two bottom molds 1 to finish the dismantling of the optimized mold.
(7) Cleaning for standby.
After the optimized mold is disassembled, the surface mortar is immediately cleaned, the mold release agent is coated for continuous turnover use, the parts are damaged and need to be replaced in time, and the parts are placed in a dry place for storage and are subjected to anticorrosion and antirust treatment.
In conclusion, by means of the technical scheme, the defects that hole sealing gaps are not tight, anchor ear displacement slides off, a bottom die deforms and is staggered, slurry leaks at the sealing part and the like are overcome, the hidden danger of leakage of a contact surface can be effectively prevented, and the lifting die sealing of the reserved hole of the pipeline and the quality improvement of building installation engineering are realized; the structure is simple, the cost is low, the method is particularly suitable for industrial mass production, and the method is suitable for plugging reserved holes of PVC pipes, galvanized pipes and various metal and non-metal pipelines; the steel plate has the advantages of high strength, no deformation, good universality and turnover, high construction speed, simple and quick field installation and disassembly, stability and reliability; the construction process is simplified, the field operation work amount is reduced, the work efficiency is improved, a large amount of auxiliary materials and installation and disassembly work cost are saved, the construction cost is reduced, and the energy conservation and environmental protection are realized; the hidden leakage danger of the plugging of the reserved hole can be effectively prevented, the flatness and the smoothness of the operation surface are good, the construction quality of a cast-in-place structure and the installation quality of water supply and drainage engineering are effectively improved, the development of the traditional construction process to instrumentization and standardization is promoted, and the hidden leakage prevention device has good practicability and popularization value.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a hole shutoff mould is reserved to pipeline, includes two semicircular die blocks (1) of opposition each other, its characterized in that, die block (1) has set firmly first overlap joint portion (2) along the one end of circumference direction, the top of first overlap joint portion (2) with the top parallel and level of die block (1), die block (1) has set firmly second overlap joint portion (3) along the other end of circumference direction, second overlap joint portion (3) are located the below of first overlap joint portion (2) and with first overlap joint portion (2) overlap joint cooperation, staple bolt (4) of the bottom fixedly connected with semicircle barrel-shaped of die block (1), two staple bolt (4) opposition each other and detachably link together.
2. The pipe preformed hole plugging mold according to claim 1, wherein the distance between the top of said second lap joint (3) and the top of said bottom mold (1) is equal to the distance between the top of said first lap joint (2) and the bottom of said first lap joint (2).
3. The pipe preformed hole plugging die according to claim 1, wherein wedge-shaped protrusions (5) are fixedly arranged at two ends of the hoop (4) along the circumferential direction, the two wedge-shaped protrusions (5) which are in contact with each other form an inverted trapezoid structure together, and a wedge-shaped sleeve clamp (6) matched with the inverted trapezoid structure is sleeved outside the inverted trapezoid structure.
4. The pipe preformed hole plugging die according to claim 3, wherein a vertical anti-slip groove is formed in the wedge-shaped projection (5), a vertical anti-slip protrusion is fixedly arranged on the wedge-shaped collet (6), the anti-slip protrusion and the anti-slip groove are in sliding fit in the vertical direction, and transverse anti-slip insections which are matched with each other are fixedly arranged on the wedge-shaped projection (5) and the wedge-shaped collet (6).
5. The pipe preformed hole plugging mold according to claim 4, wherein the wedge-shaped collet (6) comprises two L-shaped clamping pieces (7), a bolt (8) is fixedly connected to the outer side of one of the clamping pieces (7), and a long round hole (9) corresponding to the bolt (8) is formed in the other clamping piece (7).
6. A construction method of the pipe preformed hole plugging die as claimed in claim 5, characterized by comprising the following steps:
s1, firstly chiseling and cleaning and wetting a hole of a reserved hole, then sleeving two semicircular bottom moulds (1) and anchor ears (4) on a pipeline in a sleeving manner, enabling the two semicircular bottom moulds to be attached to the bottom surface of a floor (10), after the bottom moulds (1) are mutually butted, clamping the two anchor ears (4) on the periphery of the pipeline and closely attaching the two anchor ears to the pipeline, and mutually butting wedge-shaped lugs (5) on the two anchor ears (4) to form an inverted trapezoidal structure;
s2, sleeving a wedge-shaped sleeve clamp (6) into the inverted trapezoidal structure from the bottom of the anchor ear (4) upwards, enabling an anti-skid protrusion on the wedge-shaped sleeve clamp (6) to be matched with an anti-skid groove on the wedge-shaped bump (5), and then knocking the wedge-shaped sleeve clamp (6) upwards to enable the wedge-shaped sleeve clamp to be gradually clamped with the inverted trapezoidal structure upwards along the anti-skid groove and to be propped against the bottom of the bottom die (1);
s3, pouring concrete to block the reserved hole;
s4, dismantling the bottom die (1) when the concrete reaches the specified strength;
s5, cleaning the bottom die (1) for later use.
7. The construction method of the blocking mold for the reserved holes of the pipeline according to claim 6, further comprising the following steps:
s0, when the pipeline is installed, a rubber water-stopping rubber ring (11) is sleeved outside the pipeline, and the rubber water-stopping rubber ring (11) is located in the middle of the floor slab (10).
8. The construction method of the blocking mold for the reserved holes of the pipeline according to claim 6, wherein the step S3 specifically comprises the following steps: cleaning and moistening the inside and the periphery of the reserved hole again, coating cement slurry doped with 8% of waterproof powder on the periphery of the hole of the reserved hole once, pouring for the first time until the concrete is poured to be half of the thickness of the floor slab (10), manually inserting, tamping, pouring for the second time when the concrete is initially set until the concrete in the range of 100mm of the periphery of the pipeline is 10-15 mm higher than the floor slab (10), and then enabling the concrete to be outwardly pitched to form a water blocking ring.
9. The construction method of the blocking mold for the reserved holes of the pipeline according to claim 6, wherein the step S4 specifically comprises the following steps: firstly, loosening the nut on the wedge-shaped sleeve clamp (6), horizontally shifting one clamping piece (7), releasing the fastening of the wedge-shaped sleeve clamp (6) to the anchor ear (4), then slightly prying the bottom die (1) to separate the bottom die from the concrete, and then respectively taking down the two bottom dies (1) to finish the disassembly of the bottom die (1).
10. The construction method of the blocking mold for the reserved holes of the pipeline according to claim 6, wherein the step S5 specifically comprises the following steps: immediately cleaning mortar on the surface of the bottom die (1), coating a release agent, placing the bottom die in a dry place for storage, and performing anticorrosion and antirust treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110119553.9A CN112796518A (en) | 2021-01-28 | 2021-01-28 | Pipeline reserved hole plugging die and construction method |
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|---|---|---|---|
| CN202110119553.9A CN112796518A (en) | 2021-01-28 | 2021-01-28 | Pipeline reserved hole plugging die and construction method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585776A (en) * | 2021-07-28 | 2021-11-02 | 河南省第一建筑工程集团有限责任公司 | Prefabricated vertical component bin dividing tool and bin dividing method |
| CN114922419A (en) * | 2022-04-25 | 2022-08-19 | 中建二局第三建筑工程有限公司 | Die for plugging reserved hole with fixed pipeline and using method |
-
2021
- 2021-01-28 CN CN202110119553.9A patent/CN112796518A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113585776A (en) * | 2021-07-28 | 2021-11-02 | 河南省第一建筑工程集团有限责任公司 | Prefabricated vertical component bin dividing tool and bin dividing method |
| CN114922419A (en) * | 2022-04-25 | 2022-08-19 | 中建二局第三建筑工程有限公司 | Die for plugging reserved hole with fixed pipeline and using method |
| CN114922419B (en) * | 2022-04-25 | 2024-02-27 | 中建二局第三建筑工程有限公司 | Die for plugging reserved hole with fixed pipeline and use method |
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