CN113216619B - Positioning device for reserved hole and sleeve of floor slab and positioning method thereof - Google Patents
Positioning device for reserved hole and sleeve of floor slab and positioning method thereof Download PDFInfo
- Publication number
- CN113216619B CN113216619B CN202110422316.XA CN202110422316A CN113216619B CN 113216619 B CN113216619 B CN 113216619B CN 202110422316 A CN202110422316 A CN 202110422316A CN 113216619 B CN113216619 B CN 113216619B
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- China
- Prior art keywords
- electromagnet
- floor slab
- plumb
- telescopic rod
- hole
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 5
- 239000000523 sample Substances 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000006698 induction Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
Classifications
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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
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C15/00—Surveying instruments or accessories not provided for in groups G01C1/00 - G01C13/00
- G01C15/10—Plumb lines
Abstract
The invention discloses a positioning device for a reserved hole and a sleeve of a floor slab and a positioning method thereof, wherein the device comprises a cross graduated scale with a positioning groove in the center, a base supported by a foot rest, a level gauge and a leveling component which are arranged on the base, a plumb and plumb hanging component which are arranged on the base, a telescopic rod which is upwards arranged on the base, an electromagnet which is arranged at the top end of the telescopic rod, an electromagnet controller which is arranged at the lower part of the telescopic rod and an electromagnetic sensor with a prompting function; the cross scale is used for locating the center of a hole of a lower floor slab, the plumb is used for locating the locating groove, the electromagnet is cone-shaped, the electromagnet, the telescopic rod and the plumb are coaxial, and the electromagnetic inductor is used for placing the electromagnet below locating on an upper floor slab template. The invention has simple operation, no damage to the template and high positioning precision.
Description
Technical Field
The invention belongs to the field of building construction, and particularly relates to a positioning device and a positioning method for a reserved hole and a sleeve of a floor slab.
Background
The prior positioning method mainly comprises two steps, namely, measuring and positioning by adopting a straight ruler by adopting a reference structural beam or column, so that inaccuracy in positioning of each layer of holes caused by structural errors of the reserved holes is easily caused; the other is to position the hanging wire of the floor template opening, and the template can be damaged although the positioning is accurate, so that the template utilization rate is reduced, and the cost is high.
Disclosure of Invention
The invention aims to provide a positioning device and a positioning method for a reserved hole and a sleeve of a floor slab.
The technical scheme adopted by the invention is as follows:
the utility model provides a floor reservation entrance to a cave and positioner of sleeve pipe, includes that the center has the cross scale of positioning groove, supports through the foot rest, establishes level gauge and leveling subassembly on the base, establishes plumb and plumb on the base and hangs and put the subassembly, upwards establishes the telescopic link on the base, establishes the electro-magnet on telescopic link top, establishes the electro-magnet controller in telescopic link lower part, has prompt facility's electromagnetic induction ware; the cross scale is used for locating the center of a hole of a lower floor slab, the plumb is used for locating the locating groove, the electromagnet is cone-shaped, the electromagnet, the telescopic rod and the plumb are coaxial, and the electromagnetic inductor is used for placing the electromagnet below locating on an upper floor slab template.
Further, a threaded connector and a power connector are arranged at the lower part of the electromagnet, a top threaded connector and a power connector are arranged at the top end of the telescopic rod, a controller connector is arranged at the lower part of the telescopic rod, a bottom threaded connector is arranged at the bottom end of the telescopic rod, a power wire is arranged in the telescopic rod, the threaded connector is arranged on the base, and the controller connector and the clamp are arranged on the electromagnet controller; the screwed joint and the power supply joint of the electromagnet are detachably mounted with the top screwed joint and the power supply joint respectively, the bottom screwed joint is detachably mounted with the screwed joint of the base, the controller joint is in butt joint with the controller joint, the clamp is detachably mounted at the lower part of the telescopic rod, and two ends of the power supply wire are connected with the power supply joint and the controller joint respectively and do not affect the telescopic rod to stretch out and draw back.
Further, the telescopic rod comprises a bottom rod, a top rod which is arranged in the bottom rod in a sliding manner and a locking knob which locks the top rod on the bottom rod.
Further, the leveling assembly is three adjusting screws uniformly distributed around the center.
Further, the plumb bob hanging component comprises a hanging wire for hanging the plumb bob, a pulley for winding the hanging wire and a wire collector for collecting and releasing the hanging wire.
Further, a battery, a switch button and a current adjusting knob are arranged on the electromagnet controller.
Further, the lower part of the electromagnetic sensor is provided with an electromagnetic induction probe, and the upper part is provided with an audible and visual alarm.
Further, the tripod is a tripod.
A positioning method for a reserved hole of a floor slab and a sleeve pipe comprises the steps of taking a pre-buried lower floor slab hole as a reference hole, placing a cross graduated scale on the reference hole, adjusting the cross graduated scale until four sides are consistent in reading, taking the position of a positioning groove as the center of the reference hole, placing a foot rest, a base, a level meter and a leveling assembly, a plumb and plumb hanging assembly, a telescopic rod, an electromagnet and an electromagnet controller integrally above the reference hole, placing the plumb hanging assembly down the plumb close to the reference hole, integrally moving the foot rest, the base, the level meter and the leveling assembly, the plumb and plumb hanging assembly, the telescopic rod, the electromagnet and the electromagnet controller, enabling the plumb to face against the positioning groove, then operating the leveling assembly to combine with feedback of the level meter, enabling the tip of the electromagnet to be the reference point of the upper floor slab hole, placing an electromagnetic inductor on an upper floor slab template, gradually shrinking an enclosure until a prompt with an electromagnetic signal is obtained, and taking the position of the electromagnetic inductor as the positioning point of the upper floor slab hole or the sleeve pipe.
The beneficial effects of the invention are as follows:
the invention has simple operation, does not damage the template, namely, the center of the hole of the lower floor slab is found through the cross graduated scale, the reference extends upwards through the plumb by locating through the plumb, the coaxiality of the electromagnet, the telescopic rod and the plumb is ensured through the level gauge and the leveling component, the reference further extends upwards to the vicinity of the upper floor slab through the telescopic rod, and finally, the locating point is found on the upper floor slab template through the induction action of the electromagnet and the electromagnetic inductor without damaging the template; the invention has high positioning precision, namely the cross graduated scale can accurately find the circle center of the hole of the lower floor slab, the plumb bob and the level gauge can ensure no deviation when the datum extends upwards, the induction action of the electromagnet and the electromagnetic inductor is positioned accurately, and the cone-shaped electromagnet can gather the electromagnetic waves at the tip of the cone electromagnet as much as possible, thereby reducing the divergence degree of the magnetic induction lines and further improving the positioning precision.
Drawings
FIG. 1 is a schematic working diagram of a locating device for a reserved hole and a sleeve of a floor in an embodiment of the invention.
Fig. 2 is a schematic diagram of an electromagnet in an embodiment of the invention.
Fig. 3 is a schematic view of a telescopic rod in an embodiment of the present invention.
Fig. 4 is a schematic view of a base and a stand according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a base and a stand according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of an electromagnet controller in an embodiment of the present invention.
Fig. 7 is a schematic view of a cross scale in an embodiment of the invention.
Fig. 8 is a schematic diagram of an electromagnetic sensor in an embodiment of the invention.
In the figure: 1-an electromagnetic inductor; 11-an audible and visual alarm; 12-a magnetic induction probe; 2-templates; 3-an electromagnet; 31-threaded joint; 32-power connectors; 4-a telescopic rod; 41-top threaded interface; 42-a power interface; 43-ejector rod; 44-power supply lines; 45-bottom bar; 46-locking knob; 47-controller joint; 48-ground screw interface; 5-an electromagnet controller; 51-clamping hoop; 52-a controller interface; 53-cell; 54-current adjustment knob; 55-a switch button; 6, a base; 61-threaded joint; 62-pulley; 63-adjusting the screw; 64-hanging wire; 65-wire winding device; 66-level gauge; 7-plumb bob; 8-a cross scale; 81-positioning grooves; 9-foot rest.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1 and 7, a positioning device for a reserved hole and a sleeve of a floor slab comprises a cross graduated scale 8 with a positioning groove 81 in the center, a base 6 supported by a foot rest 9, a level 66 and a leveling component which are arranged on the base 6, a plumb 7 and a plumb hanging component which are arranged on the base 6, a telescopic rod 4 which is upwards arranged on the base 6, an electromagnet 3 which is arranged at the top end of the telescopic rod 4, an electromagnet controller 5 which is arranged at the lower part of the telescopic rod 4, and an electromagnetic sensor 1 with a prompting function; the cross scale 8 is used for locating the center of a lower floor slab hole, the plumb bob 7 is used for locating the locating groove 81, the electromagnet 3 is cone-shaped, the electromagnet 3, the telescopic rod 4 and the plumb bob 7 are coaxial, and the electromagnetic inductor 1 is used for placing the electromagnet 3 which is located below the locating position on the upper floor slab template 2.
As shown in fig. 2 to 6, in the present embodiment, a screwed joint 31 and a power supply joint 32 are provided at the lower part of the electromagnet 3, a top screwed joint 41 and a power supply joint 42 are provided at the top end of the telescopic rod 4, a controller joint 47 is provided at the lower part, a bottom screwed joint 48 is provided at the bottom end, a power supply line 44 is provided inside, a screwed joint 61 is provided on the base 6, and a controller joint 52 and a clamp 51 are provided on the electromagnet controller 5; the screwed joint 31 and the power connector 32 of the electromagnet 3 are respectively detachably mounted with the top screwed joint 41 and the power connector 42, the bottom screwed joint 48 is detachably mounted with the screwed joint 61 of the base 6, the controller interface 52 is in butt joint with the controller connector 47, the clamp is detachably mounted on the lower part of the telescopic rod 4, and two ends of the power wire 44 are respectively connected with the power connector 42 and the controller connector 47 without influencing the telescopic rod 4 to stretch. The base 6, the telescopic rod 4, the electromagnet 3 and the electromagnet controller 5 are spliced into a whole in a quick-dismantling mode, and the assembly and the disassembly are convenient.
As shown in fig. 3, in the present embodiment, the telescopic rod 4 includes a bottom rod 45, a top rod 43 slidably provided in the bottom rod 45, and a locking knob 46 for locking the top rod 43 to the bottom rod 45. As shown in fig. 4, in the present embodiment, a tripod is used as the tripod 9. As shown in fig. 4 and 5, in this embodiment, the leveling assembly is three adjusting screws 63 uniformly distributed around the center. As shown in fig. 4 and 5, in the present embodiment, the plumb lifting assembly includes a lifting wire 64 that lifts the plumb 7, a pulley 62 that passes around the lifting wire 64, and a wire takeup 65 for taking up and paying out the lifting wire 64. As shown in fig. 6, in the present embodiment, a battery 53, a switch button 55, and a current adjusting knob 54 are provided on the electromagnet controller 5. As shown in fig. 8, in the present embodiment, an electromagnetic induction probe 12 is provided at the lower part of the electromagnetic inductor 1, and an audible and visual alarm 11 is provided at the upper part.
The positioning method of the positioning device of the reserved hole and the sleeve of the floor slab comprises the following steps: the method comprises the steps of taking a pre-buried lower floor slab hole as a reference hole, placing a cross graduated scale 8 on the reference hole, adjusting the position of a positioning groove 81 as the center of the reference hole when four sides of the cross graduated scale 8 are consistent, then placing a foot rest 9, a base 6, a level gauge 66 and a leveling component, a plumb 7 and a plumb hanging component, a telescopic rod 4, an electromagnet 3 and an electromagnet controller 5 integrally above the reference hole, placing the plumb 7 close to the reference hole (the distance can be 1mm, the closer the plumb hanging component is, the better the distance is, but the better the plumb hanging component cannot interfere), integrally moving the foot rest 9, the base 6, the level gauge 66 and the leveling component, the plumb 7 and the plumb hanging component, the telescopic rod 4, the electromagnet 3 and the electromagnet controller 5, enabling the plumb 7 to face the positioning groove 81, then operating the leveling component to enable the base 6 to be horizontal by combining feedback of the level gauge 66, enabling the tip of the electromagnet 3 to be the upper floor slab hole reference point, placing an electromagnetic inductor 1 on an upper floor slab 2, gradually shrinking an electromagnetic inductor 1 until an enclosure ring is obtained, and the position of the electromagnetic inductor 1 is the position of the upper floor slab hole or the sleeve hole.
The invention is simple to operate, the template 2 is not damaged, namely, the center of the hole of the lower floor is found through the cross graduated scale 8, the reference extends upwards through the plumb 7 by locating through the plumb 7, the coaxiality of the electromagnet 3, the telescopic rod 4 and the plumb 7 is ensured through the level gauge 66 and the leveling component, the reference extends upwards to the vicinity of the upper floor further through the telescopic rod 4, and finally, a locating point is found on the upper floor template 2 through the induction action of the electromagnet 3 and the electromagnetic inductor 1, and the template 2 is not damaged; the invention has high positioning precision, namely, the cross graduated scale 8 can accurately find the circle center of the hole of the lower floor, the plumb bob 7 and the level gauge 66 can ensure no deviation when the datum extends upwards, the induction action of the electromagnet 3 and the electromagnetic inductor 1 is accurate in positioning, and the cone-shaped electromagnet 3 can gather the electromagnetic as far as possible at the tip of the electromagnet 3, thereby reducing the divergence degree of magnetic induction lines and further improving the positioning precision.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (9)
1. A floor reserved hole and sleeve positioning device is characterized in that: the device comprises a cross graduated scale with a positioning groove in the center, a base supported by a foot rest, a level gauge and a leveling component which are arranged on the base, a plumb and plumb hanging component which are arranged on the base, a telescopic rod which is upwards arranged on the base, an electromagnet which is arranged at the top end of the telescopic rod, an electromagnet controller which is arranged at the lower part of the telescopic rod, and an electromagnetic sensor with a prompt function; the cross scale is used for locating the center of a hole of a lower floor slab, the plumb is used for locating the locating groove, the electromagnet is cone-shaped, the electromagnet, the telescopic rod and the plumb are coaxial, and the electromagnetic inductor is used for placing the electromagnet below locating on an upper floor slab template.
2. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the lower part of the electromagnet is provided with a threaded joint and a power connector, the top end of the telescopic rod is provided with a top threaded joint and a power connector, the lower part of the telescopic rod is provided with a controller connector, the bottom end of the telescopic rod is provided with a bottom threaded joint, the inside of the telescopic rod is provided with a power wire, the base is provided with the threaded joint, and the electromagnet controller is provided with the controller connector and the clamp; the screwed joint and the power supply joint of the electromagnet are detachably mounted with the top screwed joint and the power supply joint respectively, the bottom screwed joint is detachably mounted with the screwed joint of the base, the controller joint is in butt joint with the controller joint, the clamp is detachably mounted at the lower part of the telescopic rod, and two ends of the power supply wire are connected with the power supply joint and the controller joint respectively and do not affect the telescopic rod to stretch out and draw back.
3. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the telescopic rod comprises a bottom rod, a push rod which is arranged in the bottom rod in a sliding manner and a locking knob which locks the push rod on the bottom rod.
4. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the leveling assembly is provided with three adjusting screws uniformly distributed around the center.
5. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the plumb lifting assembly comprises a lifting wire for lifting the plumb, a pulley for winding the lifting wire and a wire winding device for winding and unwinding the lifting wire.
6. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the electromagnet controller is provided with a battery, a switch button and a current adjusting knob.
7. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the lower part of the electromagnetic sensor is provided with an electromagnetic sensing probe, and the upper part is provided with an audible and visual alarm.
8. A floor slab preformed hole and sleeve positioning device as claimed in claim 1, wherein: the tripod is a tripod.
9. A positioning method for a reserved hole and a sleeve of a floor slab is characterized by comprising the following steps: the floor slab reserved hole and sleeve positioning device according to any one of claims 1 to 8, wherein an embedded lower floor slab hole is taken as a reference hole, a cross graduated scale is placed on the reference hole, the position of a positioning groove is taken as the center of the reference hole when four side readings are consistent, then a foot rest, a base, a level meter and a leveling component, a plumb and plumb hanging component, a telescopic rod, an electromagnet and an electromagnet controller are integrally placed above the reference hole, the plumb hanging component lowers the plumb to be close to the reference hole, the foot rest, the base, the level meter and the leveling component, the plumb hanging component, the telescopic rod, the electromagnet and the electromagnet controller are integrally moved, the plumb faces the positioning groove, then the leveling component is operated to be combined with feedback of the level meter, the tip of the electromagnet is taken as the reference point of the upper floor slab hole, then an electromagnetic inductor is placed on the upper floor slab template, and the electromagnetic inductor is gradually contracted to surround the ring until a prompt of electromagnetic signal is obtained, and the position of the electromagnetic inductor is taken as the positioning point of the upper floor slab hole or sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422316.XA CN113216619B (en) | 2021-04-20 | 2021-04-20 | Positioning device for reserved hole and sleeve of floor slab and positioning method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110422316.XA CN113216619B (en) | 2021-04-20 | 2021-04-20 | Positioning device for reserved hole and sleeve of floor slab and positioning method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113216619A CN113216619A (en) | 2021-08-06 |
| CN113216619B true CN113216619B (en) | 2023-10-24 |
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ID=77088141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110422316.XA Active CN113216619B (en) | 2021-04-20 | 2021-04-20 | Positioning device for reserved hole and sleeve of floor slab and positioning method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113216619B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008169631A (en) * | 2007-01-12 | 2008-07-24 | Asahi Kasei Homes Kk | Construction member installation hole positioning device |
| CN204081487U (en) * | 2014-09-03 | 2015-01-07 | 江苏省苏中建设集团股份有限公司 | A kind of service sleeve orientation tool |
| CN107489273A (en) * | 2017-06-22 | 2017-12-19 | 河池市森机械有限责任公司 | Building template alignment pin |
| CN209246933U (en) * | 2018-12-13 | 2019-08-13 | 北京金海城工程建设监理公司 | Slab thickness detector and its positioning device |
| CN210049616U (en) * | 2019-02-28 | 2020-02-11 | 中国华冶科工集团有限公司 | Vertical pre-buried device of reservation entrance to a cave |
| CN210918233U (en) * | 2019-10-23 | 2020-07-03 | 中国建筑第七工程局有限公司 | Quick accurate positioning tool assembly for embedded sleeve |
| CN112663958A (en) * | 2021-01-26 | 2021-04-16 | 山西三建集团有限公司 | Levelness monitoring device and method for floor slab pouring bottom formwork |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6918187B2 (en) * | 2003-07-22 | 2005-07-19 | Brent Schaefer | Multi plane plumb level |
| GB2429047A (en) * | 2005-08-13 | 2007-02-14 | Robert Trickett | Device for mounting plumbing pipes on a support |
-
2021
- 2021-04-20 CN CN202110422316.XA patent/CN113216619B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008169631A (en) * | 2007-01-12 | 2008-07-24 | Asahi Kasei Homes Kk | Construction member installation hole positioning device |
| CN204081487U (en) * | 2014-09-03 | 2015-01-07 | 江苏省苏中建设集团股份有限公司 | A kind of service sleeve orientation tool |
| CN107489273A (en) * | 2017-06-22 | 2017-12-19 | 河池市森机械有限责任公司 | Building template alignment pin |
| CN209246933U (en) * | 2018-12-13 | 2019-08-13 | 北京金海城工程建设监理公司 | Slab thickness detector and its positioning device |
| CN210049616U (en) * | 2019-02-28 | 2020-02-11 | 中国华冶科工集团有限公司 | Vertical pre-buried device of reservation entrance to a cave |
| CN210918233U (en) * | 2019-10-23 | 2020-07-03 | 中国建筑第七工程局有限公司 | Quick accurate positioning tool assembly for embedded sleeve |
| CN112663958A (en) * | 2021-01-26 | 2021-04-16 | 山西三建集团有限公司 | Levelness monitoring device and method for floor slab pouring bottom formwork |
Non-Patent Citations (1)
| Title |
|---|
| 一种可精确控制位移量的牵引电磁铁的研制;张弛;魏泽鼎;;机床与液压(第08期);全文 * |
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| CN113216619A (en) | 2021-08-06 |
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