CN114704085A - Construction method of through pipe reserved hole on cast-in-place concrete floor plate - Google Patents
Construction method of through pipe reserved hole on cast-in-place concrete floor plate Download PDFInfo
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- CN114704085A CN114704085A CN202210467708.2A CN202210467708A CN114704085A CN 114704085 A CN114704085 A CN 114704085A CN 202210467708 A CN202210467708 A CN 202210467708A CN 114704085 A CN114704085 A CN 114704085A
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- pvc
- inner sleeve
- sleeve
- plate
- pipe
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- 238000010276 construction Methods 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 239000002023 wood Substances 0.000 abstract description 2
- 238000009415 formwork Methods 0.000 description 6
- 125000003003 spiro group Chemical group 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a construction method of a through pipe reserved hole on a cast-in-place concrete floor plate, which solves the problem of how to finish forming the through pipe reserved hole on the cast-in-place concrete floor plate with high quality; the sleeved double-layer PVC pipe is used for replacing a traditional steel sleeve, the side wall of each PVC short pipe is cut to obtain a PVC short pipe with an opening, and the two PVC short pipes are sleeved together to achieve the effect that the inside of the sleeve is sealed; fixing the PVC sleeve on a floor slab pouring bottom template through a support frame formed by combining a lead screw and a wood slab; and pouring concrete of the floor plate, after the poured concrete is solidified, removing the screw template support frame in the sleeve, inserting the pointed cone into the elongated opening on the inner sleeve, prying the inner sleeve inwards, taking out the inner sleeve, and taking out the outer sleeve by the same method, thereby obtaining the high-quality formed through-pipe reserved hole.
Description
Technical Field
The invention relates to a cast-in-place concrete floor slab, in particular to a pouring template system with a reserved through hole on the cast-in-place concrete floor slab and a construction method thereof.
Background
In the construction of the main structure of a cast-in-place concrete building, according to the functional requirements of water supply and drainage, heating subsection engineering and ventilation and air conditioning subsection engineering of the building, pipe penetrating holes with small apertures penetrating through a floor slab need to be reserved in a poured concrete floor slab, and vertical pipes such as a water supply and drainage pipe, a heating water pipe and an air conditioning pipe penetrate through the holes; the traditional method for reserving the through pipe holes comprises the following steps: before pouring floor slab concrete, according to the diameter of the stand pipe and the position in the drawing, arranging and fixing a steel sleeve at the corresponding position of the reserved hole on the concrete pouring bottom template of the floor slab, wherein the length of the steel sleeve is about 100 mm longer than the thickness of the poured floor slab; in on-site actual operation, the problem that the embedded steel sleeve is difficult to pull out often exists, and in the pipe pulling operation, the reserved hole is easily damaged locally, and the later repair is needed.
Disclosure of Invention
A construction method of a through pipe reserved hole on a cast-in-place concrete floor slab solves the technical problem of how to finish forming the through pipe reserved hole on the cast-in-place concrete floor slab in a high-quality manner.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: the sleeved double-layer PVC pipe replaces a traditional steel sleeve, the side wall of each PVC short pipe is cut along the central axis direction of the short pipe to obtain a PVC short pipe with an opening, the two PVC short pipes are sleeved together, and the long strip-shaped openings cut on the side walls of the two sleeved PVC short pipes are separated by 180 radians to achieve the effect of sealing in the sleeve; fixing the PVC sleeve on a floor slab pouring bottom template through a support frame formed by combining a lead screw and a wood slab; and pouring the concrete of the floor slab, after the poured concrete is solidified, removing the screw template support frame in the sleeve, inserting the pointed cone into the elongated opening on the inner sleeve, prying the inner sleeve inwards, taking out the inner sleeve, and taking out the outer sleeve by the same method, so that a high-quality formed through pipe reserved hole is obtained, and the hole is communicated with the floor slab bottom template after being finally removed.
A cast-in-place concrete floor board is perforated and reserved with a hole and is provided with a bottom template, a PVC outer sleeve and a PVC inner sleeve, wherein the side wall of the PVC outer sleeve is provided with a strip-shaped opening of the outer sleeve along the central axis direction of the pipe; an inner sleeve long-strip-shaped opening is formed in the PVC inner sleeve along the central axis direction of the pipe; the PVC inner sleeve is sleeved in the PVC outer sleeve, and the strip-shaped opening of the outer sleeve and the strip-shaped opening of the inner sleeve are arranged in a staggered manner; on the poling reservation hole position on the bottom die plate top surface is pour to the floor board, the spiro union has circular bed plate, face center department on the top of circular bed plate, the fixed lead screw that is provided with, the interior sheathed tube lower port of PVC outer tube and PVC together, after the circular bed plate of embedding, the apical grafting is on the bottom die plate is pour to the floor board, on the interior sheathed tube last port of PVC outer tube and PVC together, be provided with square apron, center department at square apron is provided with the lead screw and passes the through-hole, the upper end of lead screw is passed the lead screw and is passed behind the through-hole and be in the same place with the screw nut spiro union.
The long-strip-shaped opening of the outer sleeve and the long-strip-shaped opening of the inner sleeve are arranged at intervals of 180 degrees in radian; a round embedded plate is fixedly arranged on the lower bottom surface of the square cover plate and embedded into the upper port of the PVC inner sleeve.
The circular base plate is connected to the floor slab pouring bottom formwork through screws.
A construction method for a through pipe reserved hole on a cast-in-place concrete floor plate comprises the steps of pouring a bottom template, a PVC outer sleeve, a PVC inner sleeve, a circular base plate and a lead screw on the floor plate; the method is characterized by comprising the following steps:
firstly, selecting a PVC pipe with the diameter being the same as that of a reserved hole according to the diameter of the reserved hole on a floor plate, cutting the selected PVC pipe into two short pipes with equal length according to the thickness of the floor plate, namely a PVC outer sleeve and a PVC inner sleeve, wherein the length of the PVC outer sleeve is equal to the thickness of the floor plate plus 100 mm, cutting the PVC outer sleeve on the side wall of the PVC outer sleeve along the central axis direction of the pipe to form a strip-shaped opening of the outer sleeve, and cutting the PVC inner sleeve along the central axis direction of the pipe to form a strip-shaped opening of the inner sleeve; sleeving a PVC outer sleeve and a PVC inner sleeve together, and arranging the long-strip-shaped opening of the outer sleeve and the long-strip-shaped opening of the inner sleeve at an interval of 180-degree radian;
secondly, manufacturing a circular base plate with the diameter equal to the aperture of the PVC inner sleeve, and fixedly connecting a lead screw at the center of the circular base plate along the vertical direction, wherein the length of the lead screw is greater than that of the PVC inner sleeve; manufacturing a square cover plate, wherein the side length of the square cover plate is larger than the diameter of the PVC outer sleeve, and a lead screw penetrating through hole is formed in the center of the square cover plate;
thirdly, fixedly connecting a circular base plate with a lead screw to a position of a reserved hole on the top end face of a floor plate pouring bottom template through a screw, embedding a lower port of the PVC outer sleeve and a lower port of the PVC inner sleeve which are sleeved together into the circular base plate, abutting the circular base plate against the floor plate pouring bottom template, penetrating a square cover plate on the lead screw through a through hole through the lead screw, covering the square cover plate on an upper port of the PVC outer sleeve and the PVC inner sleeve which are sleeved together, screwing a screw nut on the upper end of the lead screw, abutting and fixing the square cover plate on the upper port of the PVC outer sleeve and the PVC inner sleeve which are sleeved together through the screw nut, fixing the PVC outer sleeve and the PVC inner sleeve which are sleeved together on the floor plate pouring bottom template, and sealing the inner cavity of the PVC outer sleeve and the PVC inner sleeve;
fourthly, pouring floor slab concrete;
fifthly, after the concrete of the poured floor plate is solidified, rotating and detaching the screw rod nut, removing the square cover plate, detaching the fixed connecting screw on the circular base plate, and upwards drawing out the screw rod and the circular base plate;
and sixthly, prying the sleeved PVC inner sleeves by using an awl, taking out the sleeved PVC inner sleeves from the holes, prying the PVC outer sleeves bonded with the concrete by using the awl, and taking out the PVC outer sleeves from the holes to obtain the high-quality formed through-pipe reserved holes.
A round embedded plate is fixedly arranged on the lower bottom surface of the square cover plate, the round embedded plate is embedded in an upper port of the PVC inner sleeve, and a lead screw penetrating through hole is arranged at the center of the round embedded plate; and after the floor plate is dismantled and the bottom formwork is poured, the through pipe reserved hole is communicated.
By adopting the construction method, the quality of the through pipe reserved holes on the obtained floor plate is high, the concrete pouring template at the holes is simple and easy to disassemble, and the integrity of the through pipe holes is protected to the maximum extent; the template system of the holes is low in cost, the template fixing system ensures the stability of the template, and the template and the fixed construction can be reused.
Drawings
FIG. 1 is a schematic structural view of a tube-through preformed hole casting formwork system of the present invention;
FIG. 2 is a schematic structural diagram of the sleeved PVC outer sleeve 5 and PVC inner sleeve 7 of the present invention;
fig. 3 is a schematic structural view of the circular base plate 2 and the lead screw 4 of the present invention.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a cast-in-place concrete floor board is worn to manage and is reserved pouring template system of the hole on the floor board, including floor board pour bottom form 1, PVC outer thimble 5 and PVC inner thimble 7, on the sidewall of PVC outer thimble 5, along the central axis direction of the tube, there are rectangular openings 6 of outer thimble; an inner sleeve strip-shaped opening 8 is formed in the PVC inner sleeve 7 along the central axis direction of the pipe; the PVC inner sleeve 7 is sleeved in the PVC outer sleeve 5, and the long-strip-shaped opening 6 of the outer sleeve and the long-strip-shaped opening 8 of the inner sleeve are arranged in a staggered manner; on the poling reservation hole position on the floor board pouring die block board 1 top surface, the spiro union has circular bed plate 2, in the top of circular bed plate 2 face center department, the fixed lead screw 4 that is provided with, the lower port of sleeve pipe 7 in PVC outer tube 5 and the PVC that cup joints together, after embedding circular bed plate 2, the butt connects on floor board pouring die block board 1, on the last port of sleeve pipe 7 in PVC outer tube 5 and the PVC that cup joints together, be provided with square apron 9, it passes the through-hole to be provided with the lead screw in the center department of square apron 9, the upper end of lead screw 4 passes the lead screw and passes behind the through-hole with lead screw nut 11 spiro union together.
The long-strip-shaped opening 6 of the outer sleeve and the long-strip-shaped opening 8 of the inner sleeve are arranged at intervals of 180 degrees in radian; on the lower bottom surface of the square cover plate 9, a circular embedded plate 10 is fixedly arranged, and the circular embedded plate 10 is embedded in the upper port of the PVC inner sleeve 7.
The round base plate 2 is connected to the floor plate pouring bottom formwork 1 through screws 3.
A construction method for a through pipe reserved hole on a cast-in-place concrete floor plate comprises the steps of pouring a bottom template 1 on the floor plate, a PVC outer sleeve 5, a PVC inner sleeve 7, a circular base plate 2 and a screw rod 4; the method is characterized by comprising the following steps:
firstly, selecting a PVC pipe with the diameter same as that of a reserved hole according to the diameter of the reserved hole on a floor plate, cutting the selected PVC pipe into two short pipes with equal length according to the thickness of the floor plate, namely a PVC outer sleeve 5 and a PVC inner sleeve 7, wherein the length of the PVC outer sleeve 5 is equal to the thickness of the floor plate and is 100 mm, cutting the PVC outer sleeve 5 on the side wall of the PVC outer sleeve 5 along the central axis direction of the pipe to form an outer sleeve strip-shaped opening 6, and cutting the PVC inner sleeve 7 along the central axis direction of the pipe to form an inner sleeve strip-shaped opening 8; sleeving a PVC outer sleeve 5 and a PVC inner sleeve 7 together, and arranging the long-strip-shaped opening 6 of the outer sleeve and the long-strip-shaped opening 8 of the inner sleeve at an interval of 180 degrees in radian;
secondly, manufacturing a circular base plate 2 with the diameter equal to the aperture of the PVC inner sleeve 7, fixedly connecting a lead screw 4 at the center of the circular base plate 2 along the vertical direction, wherein the length of the lead screw 4 is greater than that of the PVC inner sleeve 7; manufacturing a square cover plate 9, wherein the side length of the square cover plate 9 is larger than the diameter of the PVC outer sleeve 5, and a lead screw penetrating through hole is formed in the center of the square cover plate 9;
thirdly, fixedly connecting a circular base plate 2 with a screw rod 4 to a position of a reserved hole on the top end surface of a floor plate pouring bottom template 1 through a screw 3, embedding lower ports of a PVC outer sleeve 5 and a PVC inner sleeve 7 which are sleeved together into the circular base plate 2, the top is connected with the floor plate pouring bottom template 1, the square cover plate 9 is connected with the screw rod 4 through the screw rod through the through hole, and the square cover plate 9 is covered and connected on the upper end ports of the PVC outer sleeve 5 and the PVC inner sleeve 7 which are sleeved together, the upper end of the screw rod 4 is screwed with a screw rod nut 11, and the square cover plate 9 is fixedly connected with the upper ports of the PVC outer sleeve 5 and the PVC inner sleeve 7 which are sleeved together in a propping way through the screw rod nut 11, thus fixing the PVC outer sleeve 5 and the PVC inner sleeve 7 which are sleeved together on the floor plate pouring bottom template 1 and sealing the inner cavity of the floor plate pouring bottom template;
fourthly, pouring floor slab concrete;
fifthly, after the concrete for pouring the floor plate is solidified, rotating and disassembling the screw nut 11, removing the square cover plate 9, disassembling the fixed connecting screw 3 on the circular base plate, and drawing out the screw rod 4 and the circular base plate 2 upwards, wherein the floor plate is only about 100 mm thick, so that an operator can easily stretch a screwdriver into a hole to disassemble the screw 3;
sixthly, prying the sleeved PVC inner sleeve 7 by using an awl, taking the sleeved PVC inner sleeve 7 out of the hole, prying the PVC outer sleeve 5 bonded with concrete by using the awl, taking the PVC outer sleeve out of the hole, and obtaining a high-quality formed through-pipe reserved hole, wherein the PVC inner sleeve 7 is easily and easily dismantled as the PVC inner sleeve 7 is provided with the inner sleeve strip-shaped opening 8, and the PVC inner sleeve 7 can be easily taken out of the hole as long as the side wall of the inner sleeve strip-shaped opening 8 on the PVC inner sleeve 7 is pried into the hole; likewise, the PVC outer sleeve 5 is also removed.
A round embedded plate 10 is fixedly arranged on the lower bottom surface of the square cover plate 9, the round embedded plate 10 is embedded in the upper port of the PVC inner sleeve 7, and a lead screw penetrating through hole is arranged at the center of the round embedded plate 10; at the moment, the circular base plate 2, the lead screw 4, the circular embedded plate 10, the square cover plate 9 and the lead screw nut 11 form a stable supporting system for the PVC outer sleeve 5 and the PVC inner sleeve 7 which are sleeved together, so that the reserved hole position can not drift when the floor concrete is poured; after the floor slab pouring bottom formwork 1 is dismantled, the through pipe reserved holes are communicated, the through pipe holes are formed in the front according to the requirements of the construction process, and the floor slab pouring bottom formwork 1 is dismantled in the back.
Claims (2)
1. A construction method for a through pipe reserved hole on a cast-in-place concrete floor plate comprises the steps of pouring a bottom template (1) on the floor plate, a PVC outer sleeve (5), a PVC inner sleeve (7), a circular base plate (2) and a lead screw (4); the method is characterized by comprising the following steps:
firstly, selecting a PVC pipe with the diameter the same as that of a reserved hole according to the diameter of the reserved hole on a floor plate, cutting the selected PVC pipe into two short pipes with equal length according to the thickness of the floor plate, namely a PVC outer sleeve (5) and a PVC inner sleeve (7), wherein the length of the PVC outer sleeve (5) is equal to the thickness of the floor plate plus 100 mm, cutting the PVC outer sleeve (5) along the central axis direction of the pipe on the side wall of the PVC outer sleeve (5) to form an outer sleeve strip-shaped opening (6), and cutting the PVC inner sleeve (7) along the central axis direction of the pipe to form an inner sleeve strip-shaped opening (8); sleeving a PVC outer sleeve (5) and a PVC inner sleeve (7) together, and arranging the long-strip-shaped opening (6) of the outer sleeve and the long-strip-shaped opening (8) of the inner sleeve at intervals of 180-degree radians;
secondly, a circular base plate (2) with the diameter equal to the aperture of the PVC inner sleeve (7) is manufactured, a lead screw (4) is fixedly connected to the center of the circular base plate (2) along the vertical direction, and the length of the lead screw (4) is greater than that of the PVC inner sleeve (7); manufacturing a square cover plate (9), wherein the side length of the square cover plate (9) is larger than the diameter of the PVC outer sleeve (5), and a lead screw penetrating through hole is formed in the center of the square cover plate (9);
thirdly, fixedly connecting a circular base plate (2) with a lead screw (4) at a reserved hole position on the top end face of a floor plate pouring bottom template (1) through a screw (3), embedding lower ports of a PVC outer sleeve (5) and a PVC inner sleeve (7) which are sleeved together on the circular base plate (2), butting against the floor plate pouring bottom template (1), penetrating a square cover plate (9) through a through hole through the lead screw to the lead screw (4), covering the square cover plate (9) on upper ports of the PVC outer sleeve (5) and the PVC inner sleeve (7) which are sleeved together, screwing an upper screw nut (11) at the upper end of the lead screw (4), butting and fixing the square cover plate (9) on upper ports of the PVC outer sleeve (5) and the PVC inner sleeve (7) which are sleeved together through the screw nut (11), and fixing the PVC inner sleeve (5) and the PVC inner sleeve (7) which are sleeved together on the floor plate pouring bottom template (1) And sealing the inner cavity of the upper cover;
fourthly, pouring floor slab concrete;
fifthly, after the concrete of the floor slab to be poured is solidified, rotating and detaching the screw rod nut (11), removing the square cover plate (9), detaching the fixed connecting screw (3) on the circular base plate, and drawing out the screw rod (4) and the circular base plate (2) upwards;
and sixthly, prying the sleeved PVC inner sleeve (7) by using an awl, taking out the sleeved PVC inner sleeve from the hole, prying the PVC outer sleeve (5) adhered with the concrete by using the awl, and taking out the PVC outer sleeve from the hole to obtain the high-quality formed perforated pipe reserved hole.
2. The construction method of the preformed hole of the pipe penetrating on the cast-in-place concrete floor plate according to the claim 1, characterized in that a round embedded plate (10) is fixedly arranged on the lower bottom surface of a square cover plate (9), the round embedded plate (10) is embedded in the upper port of a PVC inner sleeve (7), and a screw rod penetrating through hole is arranged at the center of the round embedded plate (10); after the floor plate is removed and the bottom template (1) is poured, the through pipe reserved hole is communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210467708.2A CN114704085A (en) | 2022-04-29 | 2022-04-29 | Construction method of through pipe reserved hole on cast-in-place concrete floor plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210467708.2A CN114704085A (en) | 2022-04-29 | 2022-04-29 | Construction method of through pipe reserved hole on cast-in-place concrete floor plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114704085A true CN114704085A (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210467708.2A Pending CN114704085A (en) | 2022-04-29 | 2022-04-29 | Construction method of through pipe reserved hole on cast-in-place concrete floor plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114704085A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264883A (en) * | 2014-09-02 | 2015-01-07 | 中国建筑第八工程局有限公司 | Concrete slab reserved hole structure and construction method thereof |
| CN105781104A (en) * | 2016-05-04 | 2016-07-20 | 北京住总第三开发建设有限公司 | Top plate reserved hole construction form and construction method thereof |
| CN205669314U (en) * | 2016-05-04 | 2016-11-02 | 北京住总第三开发建设有限公司 | A kind of top board preformed hole construction mould |
| CN106677529A (en) * | 2016-12-20 | 2017-05-17 | 北京首钢建设集团有限公司 | Structure and construction method of reserved hole PVC sleeve mould |
| CN109680940A (en) * | 2019-02-01 | 2019-04-26 | 山西三建集团有限公司 | Preserved pipeline passes through the pre-embedded device and built-in process in hole in floor concrete casting |
| CN209924437U (en) * | 2019-02-26 | 2020-01-10 | 中国二冶集团有限公司 | Novel detachable die for reserving holes |
| CN212224626U (en) * | 2020-05-07 | 2020-12-25 | 四川省第六建筑有限公司 | Mould for reserving hole on concrete member |
| CN112576031A (en) * | 2020-11-30 | 2021-03-30 | 中国核工业第二二建设有限公司 | Reusable reserved hole reservation device and construction method |
| CN213868925U (en) * | 2020-11-10 | 2021-08-03 | 中国十九冶集团有限公司 | A design mould that is used for cast-in-place floor pipeline to reserve entrance to a cave |
-
2022
- 2022-04-29 CN CN202210467708.2A patent/CN114704085A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264883A (en) * | 2014-09-02 | 2015-01-07 | 中国建筑第八工程局有限公司 | Concrete slab reserved hole structure and construction method thereof |
| CN105781104A (en) * | 2016-05-04 | 2016-07-20 | 北京住总第三开发建设有限公司 | Top plate reserved hole construction form and construction method thereof |
| CN205669314U (en) * | 2016-05-04 | 2016-11-02 | 北京住总第三开发建设有限公司 | A kind of top board preformed hole construction mould |
| CN106677529A (en) * | 2016-12-20 | 2017-05-17 | 北京首钢建设集团有限公司 | Structure and construction method of reserved hole PVC sleeve mould |
| CN109680940A (en) * | 2019-02-01 | 2019-04-26 | 山西三建集团有限公司 | Preserved pipeline passes through the pre-embedded device and built-in process in hole in floor concrete casting |
| CN209924437U (en) * | 2019-02-26 | 2020-01-10 | 中国二冶集团有限公司 | Novel detachable die for reserving holes |
| CN212224626U (en) * | 2020-05-07 | 2020-12-25 | 四川省第六建筑有限公司 | Mould for reserving hole on concrete member |
| CN213868925U (en) * | 2020-11-10 | 2021-08-03 | 中国十九冶集团有限公司 | A design mould that is used for cast-in-place floor pipeline to reserve entrance to a cave |
| CN112576031A (en) * | 2020-11-30 | 2021-03-30 | 中国核工业第二二建设有限公司 | Reusable reserved hole reservation device and construction method |
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Application publication date: 20220705 |