CN112127644A - Construction method for protecting horizontal hole of constructional engineering - Google Patents
Construction method for protecting horizontal hole of constructional engineering Download PDFInfo
- Publication number
- CN112127644A CN112127644A CN202011002843.7A CN202011002843A CN112127644A CN 112127644 A CN112127644 A CN 112127644A CN 202011002843 A CN202011002843 A CN 202011002843A CN 112127644 A CN112127644 A CN 112127644A
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- China
- Prior art keywords
- bracket
- opening
- support
- cover plate
- adjusting
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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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3252—Protections, e.g. cover, caps, against impaling on starter reinforcement bars
Abstract
The invention relates to a horizontal portal protection construction method of building engineering, when covering a floor portal, firstly determining the specific size of the portal, and determining the specification of a protection bracket to be used for covering the portal; the protective bracket is a rectangular frame formed by connecting four bracket components; each bracket component comprises a bracket cover plate in the shape of an isosceles right triangle and an adjusting plate vertically arranged at the edges of two right-angle sides of the bracket cover plate; the bottom of each support cover plate is provided with a supporting leg; any one of the adjustment plates of each bracket member is connected to one of the adjustment plates of an adjacent bracket member by a sliding connection. Placing the protective support at the opening, and pulling two adjusting plates on each side of the rectangular frame to enable the support legs at the bottom of the protective support to be completely close to the four sides of the opening; two adjusting plates connected on each side of the rectangular frame are fixed, and finally the cover plate is placed in the rectangular frame, so that the purpose of sealing the opening is achieved, the operation is convenient, and the cover plate can be repeatedly recycled.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a horizontal portal protection construction method.
Background
In the construction of building engineering, the protection of the horizontal reserved hole of a floor is messy in actual construction, the form is random, and the standard of standardized construction cannot be achieved.
The invention patent with the publication number of CN209277576U discloses a combined horizontal hole opening protection cover plate, which adopts a protection plate, a fixing clamp, a connecting lock and a handle as main bodies, wherein the protection plate is fixed on a horizontal hole opening by a C-shaped fixing clamp, the protection plate is rectangular, and four corners of the protection plate are respectively provided with the connecting holes, so that a plurality of protection plates can be combined to meet the protection requirement of a larger hole opening. A strip-shaped sliding groove is formed in the inner sides of two adjacent sides of the protection plate and used for penetrating through the fixing clamp, so that the fixing clamp can move within a certain range, and a single protection cover plate can be suitable for protecting holes of different sizes. The technical scheme provided by the invention still has the defects of complex construction procedure and low working efficiency.
Disclosure of Invention
The invention aims to provide a horizontal hole protection construction method for constructional engineering so as to achieve the purposes of improving hole protection construction efficiency and repeatedly using hole protection tools in a turnover manner.
In order to solve the technical problems, the invention adopts the technical scheme that:
a construction method for protecting a horizontal hole opening of constructional engineering comprises the following steps:
step one, determining the size of a hole
When covering a floor opening, firstly determining the specific size of the opening, and determining the specification of a protective bracket to be used for covering the opening;
step two, manufacturing a protective bracket
The protective bracket comprises four bracket components which are connected to form a rectangular frame; each bracket component comprises a bracket cover plate in the shape of an isosceles right triangle and an adjusting plate vertically arranged at the edges of two right-angle sides of the bracket cover plate; the bottom of each support cover plate is provided with a supporting leg for clamping the edge part of the opening; any adjusting plate of each bracket component is connected with an adjusting plate of the adjacent bracket component through a sliding connection structure;
step three, the protective bracket is unfolded to the size of the opening
Placing the protective support at the opening, and pulling two adjusting plates on each side of the rectangular frame to enable the support legs at the bottom of the protective support to be completely close to the four sides of the opening;
step four, fixing the support adjusting bolt and covering the opening
After confirming that the support legs are completely close to the opening, fixing two adjusting plates connected to each side of the rectangular frame, and finally placing the cover plate in the rectangular frame to achieve the purpose of closing the opening.
Further, in the second step, the sliding connection structure includes a long hole and a round hole respectively opened on the adjusting plate of the two connected bracket members, and a bolt fitted into the long hole and the round hole.
Furthermore, the support members have the same structure, one adjusting plate of each support member is provided with a long hole, and the other adjusting plate is provided with a round hole.
Further, the support member comprises two long hole type members and two round hole type members; the two adjusting plates of the long hole type component are both provided with long holes, and the two adjusting plates of the round hole type component are both provided with round holes.
Further, the four bracket elements are composed of two first type elements and two second type elements, the two first type elements are arranged diagonally, the two second type elements are arranged diagonally, and the first type elements are larger in size than the second type elements.
Further, angle steel is welded at the bottom of the cover plate to serve as a supporting leg.
Further, a cover plate is included which is placed within the rectangular frame formed by the bracket members.
Compared with the prior art, the construction method provided by the invention adopts the tool type hole support with adjustable length of each side, realizes the purpose of protecting holes with different sizes, is convenient to operate, is beneficial to shortening the time for closing the holes, improves the working efficiency, and can be repeatedly recycled, thereby reducing the engineering cost.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate exemplary embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
FIG. 1 is a bottom view of a horizontal portal protection bracket.
FIG. 2 is a side view of a horizontal portal guard support.
FIG. 3 is a perspective view of a horizontal hole guard support in example 1.
FIG. 4 is a schematic structural view of a stent member according to example 1.
FIG. 5 is a perspective view of a horizontal hole guard support in example 2.
FIG. 6 is a schematic structural view of a first type member in embodiment 2.
Figure 7 is a schematic view of the structure of the second type element in embodiment 2.
In the figure, 1-bracket component, 2-bracket cover plate, 3-adjusting plate, 4-supporting leg, 5-long hole, 6-round hole, 7-bolt, 8-first type component, 9-second type component.
Detailed Description
In order that those skilled in the art will better understand the present invention, a more complete and complete description of the present invention is provided below in conjunction with the accompanying drawings and embodiments. In addition, the features of the embodiments and examples in the present application may be combined with each other without conflict.
In the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
The traditional horizontal tunnel portal protection method has the defects of complex working procedures, low construction efficiency, low protection quality, easy occurrence of safety accidents at the tunnel portal, material waste, low repeated utilization rate and incapability of achieving the purpose of standard civilized construction. Based on this, a typical embodiment of the present invention provides a construction method for protecting a horizontal opening of a building engineering, which includes the following steps:
step one, determining the size of a hole
When covering a floor opening, firstly determining the specific size of the opening, and determining the specification of a support required to be used for covering the opening;
step two, manufacturing a protective bracket
The protective bracket, as shown in fig. 1, comprises four bracket members 1, wherein the four bracket members 1 are connected to form a rectangular frame; each bracket component 1 comprises a bracket cover plate 2 in the shape of a right triangle and an adjusting plate 3 vertically arranged at the edges of two right-angled sides of the bracket cover plate 2; the bottom of each support cover plate 2 is provided with a supporting leg 4 for clamping the edge part of the opening; any one of the adjustment plates 3 of each bracket member 1 is connected to one adjustment plate 3 of an adjacent bracket member 1 by a sliding connection structure.
Step three, the protective bracket is unfolded to the size of the opening
And placing the protective support at the opening, and pulling the two adjusting plates 3 on each edge of the rectangular frame to ensure that the supporting legs 4 at the bottom of the protective support are completely close to the four edges of the opening.
When the protective support is installed, a supporting leg on one side of the protective support is usually abutted against one side of the opening, the protective support is pre-unfolded, and then the other three sides of the protective support are pulled, so that supporting legs on four sides of the protective support are completely abutted against four sides of the opening.
Step four, fixing the support adjusting bolt and covering the opening
After confirming that the support legs 4 are completely close to the opening, two adjusting plates 5 connected with each side of the rectangular frame are fixed, and finally, the cover plate is placed in the rectangular frame to achieve the purpose of closing the opening. When the gap formed in the middle of the protective bracket is large, a cover plate is covered in the rectangular frame to complete the sealing.
In the above embodiment, the sliding connection structure is used for changing four side lengths of the rectangular frame to achieve the purpose of adjusting the length of the support in two directions simultaneously, so that the support is suitable for different hole sizes, is simple to operate, has high working efficiency and can be recycled.
The sliding connection structure includes long holes 5 and round holes 6 opened in the adjustment plates 2 of the two bracket members 1 connected, respectively, and bolts 7 fitted into the long holes 5 and the round holes 6. The preferred embodiment of the invention utilizes the principle that the bolt 7 can slide back and forth in the long hole 5 and the round hole 6 arranged on the bracket component 1, so as to realize the adjustment and fixation of the bracket. The structure is easier to manufacture and operate than the prior art.
The protective bracket described in the method of the invention is further illustrated by the following specific examples.
Example 1
Referring to fig. 3 and 4, the bracket members 1 have the same structure, a long hole D12 x 260 is formed in the middle of one adjusting plate 3 of each bracket member 1, a round hole D10 is formed in the end of the other adjusting plate 3, and a bolt 7 is installed in the long hole 5 and the round hole 6 of the two adjacent adjusting plates. The support cover plate 2 is in an isosceles right triangle shape, the bottom of the support cover plate 2 is welded with the supporting leg 4, and the supporting leg 4 and the edge of the support cover plate 2 are spaced to enable the support cover plate 2 to support the distance of the upper edge of the opening.
The four bracket elements consist of two first type elements 8 and two second type elements 9, the two first type elements 8 being arranged diagonally and the two second type elements 9 being arranged diagonally, the first type elements 8 being larger in size than the second type elements 9. The carrier cover plate 2 of the first type element 8 is above the carrier cover plate of the second type element 9, so that the carrier cover plates of the two elements can overlap.
Example 2
Referring to fig. 5-7, the bracket member 1 includes two long hole type members and two round hole type members; d12 x 260 long holes 5 are formed in the middle parts of the two adjusting plates 3 of the long hole type member, and D10 round holes 6 are formed in the end parts of the two adjusting plates of the round hole type member. The bolt 7 is arranged in the long hole 5 and the round hole 6 of the two connecting adjusting plates. The support cover plate 2 is in an isosceles right triangle shape, the bottom of the support cover plate 2 is welded with the supporting leg 4, and the supporting leg 4 and the edge of the support cover plate 2 are spaced to enable the support cover plate 2 to support the distance of the upper edge of the opening.
In the present embodiment, a long hole member is used as the first type member 8, a round hole member is used as the second type member 9, the long hole member is diagonally disposed, the round hole member is diagonally disposed, and the long hole member is larger in size than the round hole member. The carrier cover plate 2 of the long-hole type member is above the carrier cover plate of the round-hole type member so that the carrier cover plates 2 of the two members can overlap.
In the above embodiment, the support member is produced in a factory, the support member is made of a steel plate with a thickness of 2mm, the supporting leg is made of # 3 steel angle, parts with corresponding sizes are cut according to a design drawing, bolt holes and long round holes are machined according to the drawing, each member is welded, the M8 bolt is adopted for fixing and assembling, and finally the machining of the protective support is completed.
The scope of the invention is not limited to the above embodiments, and various modifications and changes may be made by those skilled in the art, and any modifications, improvements and equivalents within the spirit and principle of the invention should be included in the scope of the invention.
Claims (6)
1. A construction method for protecting a horizontal hole opening of constructional engineering is characterized by comprising the following steps:
step one, determining the size of a hole
When covering a floor opening, firstly determining the specific size of the opening, and determining the specification of a protective bracket to be used for covering the opening;
step two, manufacturing a protective bracket
The protective bracket comprises four bracket components which are connected to form a rectangular frame; each bracket component comprises a bracket cover plate in the shape of an isosceles right triangle and an adjusting plate vertically arranged at the edges of two right-angle sides of the bracket cover plate; the bottom of each support cover plate is provided with a supporting leg for clamping the edge part of the opening; any adjusting plate of each bracket component is connected with an adjusting plate of the adjacent bracket component through a sliding connection structure;
step three, the protective bracket is unfolded to the size of the opening
Placing the protective support at the opening, and pulling two adjusting plates on each side of the rectangular frame to enable the support legs at the bottom of the protective support to be completely close to the four sides of the opening;
step four, fixing the support adjusting bolt and covering the opening
After confirming that the support legs are completely close to the opening, fixing two adjusting plates connected to each side of the rectangular frame, and finally placing the cover plate in the rectangular frame to achieve the purpose of closing the opening.
2. The method of claim 1, wherein: in the second step, the sliding connection structure comprises a long hole and a round hole which are respectively arranged on the adjusting plates of the two connected bracket components, and a bolt which is arranged in the long hole and the round hole.
3. The method of claim 2, wherein: the support members have the same structure, one adjusting plate of each support member is provided with a long hole, and the other adjusting plate is provided with a round hole.
4. The method of claim 2, wherein: the support member comprises two long hole type members and two round hole type members; the two adjusting plates of the long hole type component are both provided with long holes, and the two adjusting plates of the round hole type component are both provided with round holes.
5. The method according to claim 3 or 4, characterized in that: the four bracket elements are composed of two first type elements and two second type elements, the two first type elements are arranged diagonally, the two second type elements are arranged diagonally, and the size of the first type elements is larger than that of the second type elements.
6. The method of claim 1, wherein: and angle steel is welded at the bottom of the support cover plate to serve as a supporting leg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002843.7A CN112127644A (en) | 2020-09-22 | 2020-09-22 | Construction method for protecting horizontal hole of constructional engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011002843.7A CN112127644A (en) | 2020-09-22 | 2020-09-22 | Construction method for protecting horizontal hole of constructional engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112127644A true CN112127644A (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011002843.7A Pending CN112127644A (en) | 2020-09-22 | 2020-09-22 | Construction method for protecting horizontal hole of constructional engineering |
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| Country | Link |
|---|---|
| CN (1) | CN112127644A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854785A (en) * | 2020-12-31 | 2021-05-28 | 中国建筑第二工程局有限公司 | Elevator shaft opening safety device |
| CN114233031A (en) * | 2021-12-16 | 2022-03-25 | 中国长江电力股份有限公司 | Rectangular orifice quick assembling and disassembling hard protection device and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29623975U1 (en) * | 1996-05-14 | 2000-11-02 | Kreft & Gett Jet Kunststoff | Securing device for roof openings |
| CN202284584U (en) * | 2011-09-28 | 2012-06-27 | 苏州瑞得恩光能科技有限公司 | Fixed mount support |
| CN204983720U (en) * | 2015-09-30 | 2016-01-20 | 中建四局第一建筑工程有限公司 | Horizontal entrance to a cave protector of regularization |
| CN205918147U (en) * | 2016-08-23 | 2017-02-01 | 中冶建工集团有限公司 | Horizontal entrance to a cave protector of construction |
| CN208534076U (en) * | 2018-05-31 | 2019-02-22 | 中建八局第一建设有限公司 | A kind of telescopic reserved opening horizontal protective bracket |
-
2020
- 2020-09-22 CN CN202011002843.7A patent/CN112127644A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29623975U1 (en) * | 1996-05-14 | 2000-11-02 | Kreft & Gett Jet Kunststoff | Securing device for roof openings |
| CN202284584U (en) * | 2011-09-28 | 2012-06-27 | 苏州瑞得恩光能科技有限公司 | Fixed mount support |
| CN204983720U (en) * | 2015-09-30 | 2016-01-20 | 中建四局第一建筑工程有限公司 | Horizontal entrance to a cave protector of regularization |
| CN205918147U (en) * | 2016-08-23 | 2017-02-01 | 中冶建工集团有限公司 | Horizontal entrance to a cave protector of construction |
| CN208534076U (en) * | 2018-05-31 | 2019-02-22 | 中建八局第一建设有限公司 | A kind of telescopic reserved opening horizontal protective bracket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112854785A (en) * | 2020-12-31 | 2021-05-28 | 中国建筑第二工程局有限公司 | Elevator shaft opening safety device |
| CN114233031A (en) * | 2021-12-16 | 2022-03-25 | 中国长江电力股份有限公司 | Rectangular orifice quick assembling and disassembling hard protection device and using method thereof |
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Application publication date: 20201225 |