CN110565950A - Mould for jacking demoulding concrete preformed hole construction and jacking demoulding construction method - Google Patents
Mould for jacking demoulding concrete preformed hole construction and jacking demoulding construction method Download PDFInfo
- Publication number
- CN110565950A CN110565950A CN201810566514.1A CN201810566514A CN110565950A CN 110565950 A CN110565950 A CN 110565950A CN 201810566514 A CN201810566514 A CN 201810566514A CN 110565950 A CN110565950 A CN 110565950A
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- mold
- screw rod
- concrete
- fixing frame
- threaded
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- 238000010276 construction Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 description 6
- 239000002023 wood Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
-
- 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
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
Landscapes
- 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
a jacking type demoulding concrete preformed hole construction mould comprises a mould shell, a thread top screw rod and an outer hexagonal spanner; the top of the threaded top screw rod is provided with a bolt, and the threaded top screw rod is arranged in a threaded screw rod hole at the bottom plate of the die shell; the top of the outer hexagonal wrench is provided with an inner hexagonal hole which is sleeved on a bolt on the threaded top screw rod and screwed tightly, so that the threaded screw rod is screwed into the die shell. The invention can improve the construction quality of the concrete preformed hole, improve the construction efficiency, reduce the construction cost and can be repeatedly used.
Description
Technical Field
The invention belongs to equipment for construction of constructional engineering concrete, and particularly relates to a mould for construction of a jacking type demoulding concrete preformed hole.
background
modern industrial engineering projects are developed to be large-scale, single equipment of the modern industrial engineering projects is enlarged, concrete foundations for bearing the equipment are enlarged, foundation bolt preformed holes for fixing the equipment have the advantages of being large in caliber, deep in hole and dense in hole distance, and the existing traditional construction method for the foundation preformed holes of the concrete equipment is difficult to guarantee construction quality of the engineering, low in construction efficiency and high in cost.
at present, the common construction method of the concrete preformed hole is to process a wooden mold by using a wood template, pour concrete after installation and reinforcement, and remove the wooden mold after the concrete is solidified. The construction method mainly has the following problems:
1. low efficiency and resource waste
The wooden mold can be used only once, can not be used in a turnover way, a large number of molds need to be manufactured to meet the engineering requirements, a large amount of wood needs to be consumed, and resources are wasted. The dismantling is difficult, especially for the preformed hole with large depth, the dismantling difficulty is large, and the efficiency is low.
2. the quality of the engineering is difficult to ensure
due to the factors of material strength and manufacturing quality, when concrete is poured, the wooden mold is easy to deform and even damage, the hole forming quality is poor, the mold removal difficulty is increased, and even the wooden mold cannot be completely removed, so that the engineering quality is seriously influenced.
3. Affecting equipment installation quality
Due to the complexity of the existing equipment, some equipment fixing bolts are dense, the distance between two fixing points is small, the distance between the reserved holes is small, the concrete wall between the two holes is thin, and the integrity of the thin wall removal is difficult to ensure when a wood mould is removed, so that the concrete surface at the position of the reserved hole is uneven, the concrete is loosened, and the installation quality of the equipment is seriously influenced.
Disclosure of Invention
the invention aims to overcome the defects in the prior art and provide a lifting type demoulding concrete preformed hole construction mould which can improve the construction quality of a concrete preformed hole, improve the construction efficiency, reduce the construction cost and can be repeatedly used.
The invention also aims to provide a jacking demoulding construction method of the mould for jacking demoulding concrete preformed hole.
as conceived above, the technical scheme of the invention is as follows: the utility model provides a mould is used in construction of jacking formula drawing of patterns concrete preformed hole which characterized in that: comprises a mould shell, a thread top screw rod and an external hexagonal spanner; the top of the threaded top screw rod is provided with a bolt, and the threaded top screw rod is arranged in a threaded screw rod hole at the bottom plate of the die shell; the top of the outer hexagonal wrench is provided with an inner hexagonal hole which is sleeved on a bolt on the threaded top screw rod and screwed tightly, so that the threaded screw rod is screwed into the die shell.
The jacking demoulding construction method of the mould for the construction of the lifting demoulding concrete preformed hole is characterized by comprising the following steps of: the method comprises the following steps:
firstly, when a concrete cushion is constructed, a vertical rod of a fixing frame is embedded into the concrete cushion, and then a steel bar is bound and a template is erected;
secondly, coating a concrete isolating agent on the outer wall of the die shell, screwing a threaded top screw rod into a threaded screw rod hole of a bottom plate of the die shell, and enabling the end face of the threaded top screw rod to be flush with the bottom plate of the die;
a horizontal fixing frame is fixedly connected to a vertical rod of the fixing frame, the horizontal fixing frame consists of an upper horizontal fixing frame and a lower horizontal fixing frame, a mold is mounted on the fixing frame, the mold is carried on the upper horizontal fixing frame by utilizing a mounting bracket of the mold, the position is fixed, after the verticality and the position of the mold are adjusted by utilizing the lower horizontal fixing frame, the lower horizontal fixing frame is attached to the outer wall of a shell of the mold and is welded with the vertical rod of the fixing frame, the upper part of the vertical rod is connected with a template support by using a frame pipe or profile steel, and the integral stability;
Uniformly distributing the concrete around the mold during the concrete pouring, removing the mold after the concrete is solidified to reach a certain strength, screwing the thread jacking rod by using an external hexagonal wrench, enabling the thread jacking rod to move downwards, jacking the concrete at the bottom of the reserved hole to bear force, and providing an external force moving upwards for the mold through the thread so as to enable the mold to move upwards for demolding;
fifthly, treating the prepared hole.
The external hexagonal wrench comprises a wrench torque vertical rod, a shaft lever and a concentric support; the concentric support is a steel plate with a round hole in the center, and the wrench torsion vertical rod penetrates through the round hole in the middle of the concentric support and is fixedly connected with the concentric support; the wrench torque vertical rod is vertically connected with the shaft rod.
the mold shell is of a cuboid structure, and mounting supports are fixedly connected to the tops of the two side plates of the mold shell respectively.
Four corners of the bottom plate of the die shell are provided with chamfers.
the bottom of the thread top screw rod is provided with an inner hexagonal hole.
the lower part of the concentric support is fixedly connected with a supporting plate.
The upper horizontal fixing frame adopts section steel.
The lower horizontal fixing frame adopts a threaded steel bar.
The bottom of the mould is provided with a spiral top screw rod operating device, after the mould is installed and concrete construction is finished, the thread top screw rod is screwed by using the external hexagonal wrench, so that the thread top screw rod moves downwards to support the concrete at the bottom of the reserved hole to bear force, and meanwhile, an external force moving upwards is provided for the mould through the thread, so that the mould moves upwards to demould. The mould has the biggest characteristics of simple demoulding, accurate size of a concrete hole after demoulding, no loose concrete after demoulding, no residue in the hole, repeated use for many times, convenient installation and labor reduction. The mold mounting adopts shaped steel and threaded steel, and upper horizontal fixing frame adopts shaped steel, but reuse, and lower floor's horizontal fixing frame adopts the short reinforcing bar of threaded steel, and usable reinforcing bar waste reduces engineering cost.
Drawings
FIG. 1 is an assembly overview of the present invention;
FIG. 2 is a front view of the mold shell;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a front view of a threaded top lead screw;
FIG. 5 is a top view of FIG. 4;
FIG. 6 is a bottom view of FIG. 4;
FIG. 7 is a front view of the external hex wrench;
FIG. 8 is a top view of FIG. 7;
Fig. 9 is a bottom view of fig. 7.
FIG. 10 is a bottom view of the installation of the mold of the present invention;
Fig. 11 is an installation front view of the mold of the present invention.
Detailed Description
Referring to FIGS. 1-9: a jacking type demoulding concrete preformed hole construction mould comprises a mould shell 2, a thread top screw rod 4 and an outer hexagonal spanner 3.
The die shell 2 is made of 6-10 mm steel plates and is made into a cuboid structure by Q235. The mold is required to be smooth in surface and free from unevenness, a weld joint and a chamfer (7) with the diameter of 5mm of an external corner of a bottom plate of the mold are subjected to surface treatment by a (milling) machine, the finish grade is required to reach grade & lt2 & gt, the chamfer of the mold is used for reducing the bond stress of concrete and the friction force when the mold is removed by jacking, and the bottom plate of the mold is provided with an M30 threaded hole 6 for mounting a threaded jacking rod. The two sides of the top of the mould shell are respectively and fixedly connected with a mounting 50 angle steel which is a fixing frame 8 for fast mounting the mould.
the threaded top screw rod 4 is made of Q235 material, the top of the threaded top screw rod is provided with a bolt 9, the bottom of the threaded top screw rod is provided with an M8 hexagon socket 11, and the exterior of the screw rod body is provided with an M30 thread 10. The threaded top screw is inserted from a threaded screw hole 6 at the bottom plate of the die housing. The M8 hexagon socket is convenient for the lead screw and the mould shell to install and remove.
The outer hexagonal wrench is made of Q235 steel and comprises a wrench torque vertical rod 12, a shaft rod 13 and a concentric support 14; the concentric support is a square steel plate with a round hole in the center, and the wrench torsion vertical rod penetrates through the round hole in the middle of the concentric support and is fixedly connected with the concentric support; the wrench torque vertical rod is vertically connected with the shaft rod. The lower part of the concentric support is fixedly connected with a supporting plate 15. The top of the external hexagonal wrench is provided with an internal hexagonal hole 16 which is sleeved on the bolt on the threaded top screw rod and screwed tightly, so that the threaded screw rod is screwed into the die shell. After the wrench torque vertical rod enters the die inner shell hole, the square steel plate is embedded in the inner wall of the die steel plate, the shaft rod is in a vertical state when the outer hexagonal wrench is supported and is twisted, and the supporting plate 12 prevents the square steel plate from sliding off.
referring to fig. 10: the jacking demoulding construction method of the mould for the construction of the lifting demoulding concrete preformed hole comprises the following steps:
Firstly, when a concrete cushion 20 is constructed, four threaded steel bars 19 are used as fixed frame vertical rods to be buried in the concrete cushion, and then steel bars are bound and a template 21 is erected;
Secondly, coating a concrete separant on the outer wall of the mold shell 2, screwing the threaded top screw rod 4 into the threaded screw rod hole 6 of the bottom plate of the mold shell, and enabling the end face of the threaded top screw rod 4 to be flush with the bottom plate of the mold shell 2;
Thirdly, fixedly connecting a horizontal fixing frame to four threaded steel bars of a fixing frame upright rod 19, wherein the horizontal fixing frame consists of an upper layer horizontal fixing frame 17 and a lower layer horizontal fixing frame 18, installing a mould on the fixing frame, utilizing the mould with an installing support 8 to carry on the upper layer horizontal fixing frame 17, then fixing the position, utilizing the lower layer horizontal fixing frame 18 to adjust the verticality and the position of the mould, attaching the lower layer horizontal fixing frame to the outer wall of a mould shell and welding the lower layer horizontal fixing frame with the four threaded steel bars of the fixing frame upright rod 19, and connecting the upper part of the upright rod with a template support 21 by using a frame pipe or section steel to ensure the integral;
fourthly, uniformly distributing the concrete foundation 22 around the mold, removing the mold after the concrete is solidified to reach a certain strength, screwing the thread jacking rod by using the external hexagonal wrench 3, enabling the thread jacking rod to move downwards, jacking the concrete at the bottom of the reserved hole to bear force, and providing an external force moving upwards for the mold through the thread so as to enable the mold to move upwards and demold;
Fifthly, treating the prepared hole.
Claims (7)
1. The utility model provides a mould is used in construction of jacking formula drawing of patterns concrete preformed hole which characterized in that: comprises a mould shell, a thread top screw rod and an external hexagonal spanner; the top of the threaded top screw rod is provided with a bolt, and the threaded top screw rod is arranged in a threaded screw rod hole at the bottom plate of the die shell; the top of the outer hexagonal wrench is provided with an inner hexagonal hole which is sleeved on a bolt on the threaded top screw rod and screwed tightly, so that the threaded screw rod is screwed into the die shell.
2. The method for lifting and demoulding the mould for the construction of the jacking type demoulding concrete preformed hole according to claim 1, is characterized in that: the method comprises the following steps:
Firstly, when a concrete cushion is constructed, a vertical rod of a fixing frame is embedded into the concrete cushion, and then a steel bar is bound and a template is erected;
Secondly, coating a concrete isolating agent on the outer wall of the die shell, screwing a threaded top screw rod into a threaded screw rod hole of a bottom plate of the die shell, and enabling the end face of the threaded top screw rod to be flush with the bottom plate of the die;
A horizontal fixing frame is fixedly connected to a vertical rod of the fixing frame, the horizontal fixing frame consists of an upper horizontal fixing frame and a lower horizontal fixing frame, a mold is mounted on the fixing frame, the mold is carried on the upper horizontal fixing frame by utilizing a mounting bracket of the mold, the position is fixed, after the verticality and the position of the mold are adjusted by utilizing the lower horizontal fixing frame, the lower horizontal fixing frame is attached to the outer wall of a shell of the mold and is welded with the vertical rod of the fixing frame, the upper part of the vertical rod is connected with a template support by using a frame pipe or profile steel, and the integral stability;
uniformly distributing the concrete around the mold during the concrete pouring, removing the mold after the concrete is solidified to reach a certain strength, screwing the thread jacking rod by using an external hexagonal wrench, enabling the thread jacking rod to move downwards, jacking the concrete at the bottom of the reserved hole to bear force, and providing an external force moving upwards for the mold through the thread so as to enable the mold to move upwards for demolding;
Fifthly, treating the prepared hole.
3. The mold for constructing a jack-up type demolded concrete preformed hole according to claim 1, characterized in that: the external hexagonal wrench comprises a wrench torque vertical rod, a shaft lever and a concentric support; the concentric support is a steel plate with a round hole in the center, and the wrench torsion vertical rod penetrates through the round hole in the middle of the concentric support and is fixedly connected with the concentric support; the wrench torque vertical rod is vertically connected with the shaft rod.
4. the mold for constructing a jack-up type demolded concrete preformed hole according to claim 1, characterized in that: the mold shell is of a cuboid structure, and mounting supports are fixedly connected to the tops of the two side plates of the mold shell respectively.
5. The mold for constructing a jack-up type demolded concrete preformed hole according to claim 1, characterized in that: four corners of the bottom plate of the die shell are provided with chamfers.
6. the mold for constructing a jack-up type demolded concrete preformed hole according to claim 1, characterized in that: the bottom of the thread top screw rod is provided with an inner hexagonal hole.
7. the mold for constructing a jack-up type demolded concrete preformed hole according to claim 3, characterized in that: the lower part of the concentric support is fixedly connected with a supporting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810566514.1A CN110565950A (en) | 2018-06-05 | 2018-06-05 | Mould for jacking demoulding concrete preformed hole construction and jacking demoulding construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810566514.1A CN110565950A (en) | 2018-06-05 | 2018-06-05 | Mould for jacking demoulding concrete preformed hole construction and jacking demoulding construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110565950A true CN110565950A (en) | 2019-12-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810566514.1A Pending CN110565950A (en) | 2018-06-05 | 2018-06-05 | Mould for jacking demoulding concrete preformed hole construction and jacking demoulding construction method |
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| Country | Link |
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| CN (1) | CN110565950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441249A (en) * | 2020-04-01 | 2020-07-24 | 中铁二十一局集团第三工程有限公司 | Steel bar supporting self-demoulding device for concrete construction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2421985A1 (en) * | 1974-05-07 | 1975-11-20 | Mannesmann Leichtbau Gmbh | Orificed concrete slab maing appts - tapered plug forced out after casting by rotating flanged screw |
| CN102493481A (en) * | 2011-12-15 | 2012-06-13 | 中国一冶集团有限公司 | Construction method of large equipment foundation reserved foundation bolt hole |
| CN205444900U (en) * | 2015-12-22 | 2016-08-10 | 中民筑友有限公司 | Preformed hole forming device |
| CN107237493A (en) * | 2017-06-13 | 2017-10-10 | 中建三局第二建设工程有限责任公司 | Quickly remove formula and reserve device in concrete floor hole |
| CN208803708U (en) * | 2018-06-05 | 2019-04-30 | 中冶天工集团有限公司 | Mould for construction of jacking type demoulding concrete preformed hole |
-
2018
- 2018-06-05 CN CN201810566514.1A patent/CN110565950A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2421985A1 (en) * | 1974-05-07 | 1975-11-20 | Mannesmann Leichtbau Gmbh | Orificed concrete slab maing appts - tapered plug forced out after casting by rotating flanged screw |
| CN102493481A (en) * | 2011-12-15 | 2012-06-13 | 中国一冶集团有限公司 | Construction method of large equipment foundation reserved foundation bolt hole |
| CN205444900U (en) * | 2015-12-22 | 2016-08-10 | 中民筑友有限公司 | Preformed hole forming device |
| CN107237493A (en) * | 2017-06-13 | 2017-10-10 | 中建三局第二建设工程有限责任公司 | Quickly remove formula and reserve device in concrete floor hole |
| CN208803708U (en) * | 2018-06-05 | 2019-04-30 | 中冶天工集团有限公司 | Mould for construction of jacking type demoulding concrete preformed hole |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111441249A (en) * | 2020-04-01 | 2020-07-24 | 中铁二十一局集团第三工程有限公司 | Steel bar supporting self-demoulding device for concrete construction |
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Application publication date: 20191213 |