CN109723229B - A measuring and setting-out hole protection device with a circular light-through hole - Google Patents
A measuring and setting-out hole protection device with a circular light-through hole Download PDFInfo
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- CN109723229B CN109723229B CN201910135336.1A CN201910135336A CN109723229B CN 109723229 B CN109723229 B CN 109723229B CN 201910135336 A CN201910135336 A CN 201910135336A CN 109723229 B CN109723229 B CN 109723229B
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Abstract
The invention discloses a measuring paying-off hole protection device with a circular light-passing hole, which is characterized in that: including fixed mounting guard plate on the concrete floor face, be equipped with the circular light hole that corresponds with the unwrapping wire hole position on the concrete floor face on the guard plate, circular light hole diameter is greater than laser plummet objective diameter. The invention can solve the potential safety hazard problem that the paying-off hole is in a non-protection state because the paying-off hole protection plate needs to be completely opened when the control point is guided.
Description
Technical Field
The invention relates to the field of construction, in particular to a measuring pay-off hole protection device with a circular light-passing hole.
Background
The vertical transmission of high-rise building axis need reserve 200 x 200mm unwrapping wire hole in the position corresponding to first layer measurement control point on 2 layers and above floor to the laser energy that laser plumb appearance sent passes through the unwrapping wire hole and transmits the first layer perpendicular two axis control line intersect of each other to the construction face on top layer. The paying-off holes are vertically communicated and have large overall height, potential safety hazards exist, and a cover plate is required to be used for protection to prevent falling objects. A current pay-off hole protection method is commonly used as a hinge type openable cover plate, as shown in fig. 1. When a measurer pays out, the hinge type protective cover plate needs to be fully opened, at the moment, the measurer performs instrument operation under the paying-off hole in a non-protective state, and the measurer has no sense of safety at all. In our actual operation, because the protection plate of the paying-off hole is completely opened, the paying-off hole is in a non-protection state, and a measurer has the experience of smashing the concrete stone falling from above the paying-off hole in the process of operating the plumb gauge right below the paying-off hole, as shown in fig. 2.
The surveyor needs to clean the control point, erect the instrument, center, level, check, project light, etc. just under the pay-off hole, and these consecutive operations are long in duration and are all completed just under the pay-off hole. In the high-rise residential district engineering, the number of layers of buildings is large, each building is at least provided with 3 or more control points, at least 2-3 buildings need to operate a plumb meter below a pay-off hole every day to guide and measure the control points, and only a measurer is most likely to be injured by falling objects in the pay-off hole. So the safety of the measurer can not be ensured by the hinge openable cover plate used at present, and the protection mode of completely opening the protective cover plate is urgently needed to be changed for the measurer.
Disclosure of Invention
The invention mainly solves the technical problem of providing a measuring paying-off hole protection device with a circular light-passing hole, which can solve the problem that when a measurer sets up a plumb gauge under the paying-off hole to guide a control point, the paying-off hole is in a non-protection state because a protection plate is completely opened.
In order to solve the technical problems, the invention adopts a technical scheme that:
Measurement unwrapping wire hole protector with circular light hole, its characterized in that: including fixed mounting guard plate on the concrete floor face, be equipped with the circular light hole that corresponds with the unwrapping wire hole position on the concrete floor face on the guard plate, the light hole diameter is greater than laser plummet objective diameter.
The measuring pay-off hole protection device with the circular light passing holes is characterized in that: two mutually perpendicular control lines are arranged on the concrete floor board, and the paying-off hole is positioned at the intersection point of the two control lines; the protection plate is provided with a cross center line overlapped with the two control lines, and the circular light transmission hole is positioned at the intersection point of the two cross center lines.
The measuring pay-off hole protection device with the circular light passing holes is characterized in that: v-shaped grooves are formed in the edges of the protection plates and correspond to the cross center lines, and the top ends of the notch of each V-shaped groove are overlapped with the corresponding cross center line; the protection plate is fixed on the concrete floor surface through the fixed claw pieces at the position of each V-shaped groove.
The measuring pay-off hole protection device with the circular light passing holes is characterized in that: the fixed claw piece comprises a transverse bottom plate, the transverse bottom plate is provided with an integrated left longitudinal plate and an integrated right longitudinal plate, the left longitudinal plate and the right longitudinal plate are in a V shape and are respectively clung to the end surfaces of the V-shaped grooves, and the upper parts of the left longitudinal plate and the right longitudinal plate are bent towards the top surface of the protection plate and are clamped outside the protection plate; the transverse bottom plate is fixed on the concrete floor plate through the shooting nails.
The measuring pay-off hole protection device with the circular light passing holes is characterized in that: and a circular hole plug is plugged in the circular light transmission hole.
The measuring pay-off hole protection device with the circular light passing holes is characterized in that: the fixed claw piece is formed by cold rolling L-shaped flat steel.
During installation, the cross center line of the protection plate is overlapped with the cross control line of the bullet on the concrete surface in the vertical direction, so that the intersection point of the control line is positioned at the center of the circular light transmission hole of the protection plate, the fixing claw piece is clamped into the V-shaped notch of the protection plate and clings to the two sides of the V-shaped groove of the protection plate, the fixing claw piece is fixed on the concrete floor by utilizing the shooting nails emitted by the gas nail gun, and meanwhile, the two lower bent claws at the upper end of the fixing claw piece are splayed to press the surface of the protection plate, so that the cover plate is prevented from loosening. When the instrument is erected to guide and measure the control point, only the circular hole plug on the protection plate is required to be removed, so that laser energy can be transmitted to the construction surface of the top layer through the circular light transmission hole on the protection plate.
The fixed claw piece is obtained by cold rolling of L-shaped flat steel and is matched with the V-shaped groove of the protection plate, and two downward bent claws are arranged at the upper end of the fixed claw piece and press the surface of the protection plate in a splayed shape.
The beneficial effects of the invention are as follows:
according to the invention, the protection plate is not required to be opened, and the control point guiding and measuring work can be completed by only opening the circular light-passing hole plug for laser to pass through during measurement, so that the probability of falling objects in holes is greatly reduced, and a measurer has a sense of safety.
Drawings
Fig. 1 is a perspective view of a protective cover plate for an openable hinge-type pay-off hole, which is very commonly used at present.
Fig. 2 is a schematic view of a surveyor in setting up and operating a plumb meter with a hinged protective cover fully open the payout hole in an unprotected state.
Fig. 3 is a perspective view of a measuring pay-off hole protecting device with a circular light-passing hole.
Fig. 4 is an exploded view of the present invention.
Fig. 5 is a plan view of the fender of the invention.
Fig. 6 is an elevational view of a circular hole plug of the present invention.
Fig. 7 is a plan view of the stationary jaw of the present invention.
Fig. 8 is an elevation of the stationary jaw of the present invention.
Fig. 9 is a schematic view of the use effect of the circular plug of the present invention after removal.
The components in the drawings are marked as follows:
1. A protection plate; 11. a cross center line, 12, a circular light transmission hole, 13 and a V-shaped groove;
2. A circular hole plug; 3. a fixed claw member; 4. shooting nails; 5. a control line; 6. concrete floor, 7, cone laser beam.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
A measurement pay-off hole protector with circular light passing holes, comprising: the device comprises a protection plate 1, a round hole plug 2, a fixed claw piece 3 and a nail shooting 4. As shown in fig. 5, the protection plate 1 is made of a rectangular template, the surface of the protection plate 1 is provided with a cross center line 11, the middle of four sides of the protection plate 1 is provided with a V-shaped groove 13, and the top end of the notch of the V-shaped groove is overlapped with the cross center line 11. The center of the protection plate 1 is provided with a circular light-passing hole 12, the diameter of the circular light-passing hole 12 is larger than that of the objective lens of the laser plummet, and the center of the circular light-passing hole 12 is the intersection point of the cross center line 11 on the protection plate 1. The round light-passing hole 12 is plugged by a round hole plug 2. As shown in fig. 7 and 8, the fixed claw member 3 is made of L-shaped flat steel by cold rolling and is matched with the V-shaped groove 13 of the protection plate 1. The fixed claw piece 3 comprises a transverse bottom plate 8, a left longitudinal plate 9 and a right longitudinal plate 9 which are integrated are arranged on the transverse bottom plate 8, the left longitudinal plate 9 and the right longitudinal plate 9 are in a V shape and are respectively clung to the end surfaces of the V-shaped grooves, and the upper parts of the left longitudinal plate and the right longitudinal plate are bent towards the top surface of the protection plate and clamped outside the protection plate; the transverse bottom plate is fixed on the concrete floor plate through the shooting nails. As shown in fig. 3, during installation, the cross center line 11 of the protection plate 1 is first overlapped with two mutually perpendicular control lines 5 sprung on the concrete surface in the vertical direction, so that the intersection point of the two mutually perpendicular control lines 5 is positioned at the center of the upper circular light-passing hole 12 of the protection plate 1, then the fixing claw piece 3 is clamped into the V-shaped notch 13 of the protection plate 1 and clings to two sides of the V-shaped groove of the protection plate 1, the fixing claw piece 3 is fixed on the concrete floor surface by using the nail 4 ejected by the gas nail gun, and meanwhile, the two lower bent claws at the upper end of the fixing claw piece 3 are splayed to press the surface of the protection plate 1, so that the protection plate 1 is prevented from loosening. When the instrument is erected to guide and measure the control point, only the circular hole plug 2 on the protection plate 1 is required to be removed, so that laser can be transmitted to the construction surface of the top layer through the circular light transmission hole 12.
It should be noted that, the diameter of the objective lens of the collimator is generally 36mm, when the laser emitted from the objective lens of the collimator is focused on the construction surface of the top layer, the laser beam is cone, and the maximum diameter of the cone laser beam is less than or equal to 36mm, so that the diameter of the circular light-transmitting hole 12 must be larger than the maximum diameter of the cone laser beam, so that the laser passing is not affected. The diameter of the circular light passing hole 12 in this embodiment is selected to be 40mm, as shown in fig. 9, which is an illustration of the effect of the use of this embodiment.
Claims (1)
1. Measurement unwrapping wire hole protector with circular light hole, its characterized in that: the device comprises a protection plate fixedly arranged on a concrete floor surface, wherein the protection plate is provided with a light-passing hole corresponding to a pay-off hole position on the concrete floor surface, and the diameter of the light-passing hole is larger than that of an objective lens of a laser plumber;
two control lines perpendicular to each other are arranged on the concrete floor surface, and the paying-off hole is positioned at the intersection point of the two control lines; the protection plate is provided with a cross center line which is overlapped with the two control lines, the circular light transmission hole is positioned at the intersection point of the two cross center lines, and the circle center of the circular light transmission hole is overlapped with the intersection point of the two cross center lines;
V-shaped grooves are formed in the edges of the protection plates and correspond to the cross center lines, and the top ends of the notch of each V-shaped groove are overlapped with the corresponding cross center line; the protection plate is fixed on the surface of the concrete floor through the fixed claw parts at the position of each V-shaped groove;
The fixed claw piece comprises a transverse bottom plate, the transverse bottom plate is provided with an integrated left longitudinal plate and an integrated right longitudinal plate, the left longitudinal plate and the right longitudinal plate are in a V shape and are respectively clung to the end surfaces of the V-shaped grooves, and the upper parts of the left longitudinal plate and the right longitudinal plate are bent towards the top surface of the protection plate and are clamped outside the protection plate; the transverse bottom plate is fixed on the concrete floor surface through shooting nails;
A circular hole plug is plugged in the circular light transmission hole;
the fixed claw piece is formed by cold rolling L-shaped flat steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135336.1A CN109723229B (en) | 2019-02-22 | 2019-02-22 | A measuring and setting-out hole protection device with a circular light-through hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910135336.1A CN109723229B (en) | 2019-02-22 | 2019-02-22 | A measuring and setting-out hole protection device with a circular light-through hole |
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| Publication Number | Publication Date |
|---|---|
| CN109723229A CN109723229A (en) | 2019-05-07 |
| CN109723229B true CN109723229B (en) | 2024-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910135336.1A Active CN109723229B (en) | 2019-02-22 | 2019-02-22 | A measuring and setting-out hole protection device with a circular light-through hole |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482347A (en) * | 2021-07-28 | 2021-10-08 | 广州工程总承包集团有限公司 | Vertical survey entrance to a cave fixing device of throwing of assembled control point |
| CN113494184A (en) * | 2021-07-28 | 2021-10-12 | 广州工程总承包集团有限公司 | Fixing device for vertical projection measurement of hole opening of assembled control point and using method of fixing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204043671U (en) * | 2014-09-02 | 2014-12-24 | 北京城建建设工程有限公司 | Flooring laser controlling point Vertical system |
| CN209653455U (en) * | 2019-02-22 | 2019-11-19 | 安徽三建工程有限公司 | A kind of surveying setting-out hole protective device equipped with round light hole |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202048918U (en) * | 2011-05-10 | 2011-11-23 | 中天建设集团有限公司天津分公司 | Protective device for measurement line feeding hole |
| CN205558321U (en) * | 2016-04-27 | 2016-09-07 | 中国建筑第八工程局有限公司 | Measure unwrapping wire hole protector |
| CN206646841U (en) * | 2017-03-17 | 2017-11-17 | 中冶建工集团有限公司 | A kind of protector in balcony main structure construction unwrapping wire hole |
| CN206971785U (en) * | 2017-05-04 | 2018-02-06 | 云南工程建设总承包股份有限公司 | One kind, which is drawn, takes control point to reserve unwrapping wire hole protector |
| CN207113881U (en) * | 2017-08-03 | 2018-03-16 | 四川建筑职业技术学院 | The laser receiver of laser plummet |
-
2019
- 2019-02-22 CN CN201910135336.1A patent/CN109723229B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204043671U (en) * | 2014-09-02 | 2014-12-24 | 北京城建建设工程有限公司 | Flooring laser controlling point Vertical system |
| CN209653455U (en) * | 2019-02-22 | 2019-11-19 | 安徽三建工程有限公司 | A kind of surveying setting-out hole protective device equipped with round light hole |
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| CN109723229A (en) | 2019-05-07 |
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Country or region after: China Address after: 230001 no.329 Wuhu Road, Hefei City, Anhui Province Applicant after: Anhui Construction Engineering Third Construction Group Co.,Ltd. Address before: 230001 no.329 Wuhu Road, Hefei City, Anhui Province Applicant before: ANHUI SANJIAN ENGINEERING Co.,Ltd. Country or region before: China |
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