阅读说明：本技术 一种伸缩型防护栏杆及施工方法 (Telescopic protective railing and construction method ) 是由 王敬峰 王少飞 宋震 田亮 王东 于 2019-11-06 设计创作，主要内容包括：本发明提供了一种伸缩型防护栏杆及施工方法,属于建筑施工技术领域,目的在于解决传统工艺中防护栏杆采用钢管和扣件的形式,不仅扣件用量大,而且后期拆除和运输的工作量大的施工难题。它包括方形立杆和方形横杆纵横相交连接形成的围栏型结构,该横杆由伸缩杆组成,且包括中部伸缩杆和端部伸缩杆,其中,端部伸缩杆开设连接孔,采用L型紧固件穿过该连接孔,L型紧固件紧贴既有结构设置,完成横杆与既有结构的连接,从而防止对既有结构造成破坏。该既有结构可以是结构柱或者墙体。因此,相对于采用钢管及各类扣件搭设而成的护栏,该伸缩型的防护栏杆对墙体或柱不造成损坏。(The invention provides a telescopic protective railing and a construction method, belongs to the technical field of building construction, and aims to solve the construction problems that the protective railing in the traditional process adopts a steel pipe and fastener form, the fastener consumption is large, and the workload of later-stage dismantling and transportation is large. The connecting structure comprises a square upright rod and a square cross rod which are connected in a criss-cross mode to form a fence type structure, the cross rod is composed of telescopic rods and comprises a middle telescopic rod and an end telescopic rod, the end telescopic rod is provided with a connecting hole, an L-shaped fastener penetrates through the connecting hole, the L-shaped fastener is tightly attached to the existing structure, the cross rod is connected with the existing structure, and therefore damage to the existing structure is prevented. The existing structure may be a structural column or a wall. Therefore, compared with the guardrail which is built by adopting steel pipes and various fasteners, the telescopic guardrail rod does not damage the wall or the column.)

1. A telescopic guard rail, comprising:

the upright posts are fixed on the concrete floor at intervals according to a certain distance;

the cross rod is a telescopic rod made of a square tube, the cross rod and the vertical rod are connected in a longitudinal and transverse mode to form a protective railing, the cross rod comprises an end telescopic rod and a middle telescopic rod, and a connecting hole is formed in the end telescopic rod;

and the L-shaped fastener is tightly attached to the existing structure, wherein the long edge of the L-shaped fastener is arranged along the thickness direction of the existing structure, and the bolt respectively penetrates through the short edge of the L-shaped fastener and the connecting hole in the end part telescopic rod and is locked to complete the connection of the cross rod and the existing structure.

2. The telescopic guard rail of claim 1, wherein the cross bar and the vertical bar are fixed by a head bolt.

3. A telescopic guard rail according to claim 1, further comprising a base, the base securing the upright to a concrete floor by means of expansion screws.

4. A telescopic guard rail according to claim 1, wherein the existing structure is a wall or a structural post.

5. A telescopic guard rail according to claim 1, wherein the certain spacing is 1500mm-2000 mm.

6. A construction method of a telescopic guard rail is characterized by comprising the following steps:

step one, providing a telescopic protective barrier according to any one of claims 1 to 5 for standby;

drilling holes in the concrete floor according to the reserved bolt holes in the base, and installing the vertical rods on the base and fixing the vertical rods through expansion screws;

step three, arranging an upper cross rod and a lower cross rod along the height direction of the vertical rod, wherein the cross rods are telescopic rods made of square tubes, the joints of the vertical columns and the cross rods are fixed through branch bolts, each cross rod comprises a middle telescopic rod and an end telescopic rod, and each end telescopic rod is provided with a connecting hole;

and step four, arranging the long edge of the L-shaped fastener along the thickness direction of the existing structure, and respectively enabling the bolt to penetrate through the short edge of the L-shaped fastener and the connecting hole in the end part telescopic rod and be locked to complete the connection of the cross rod and the existing structure, so that the installation and the fixation of the guard rail are completed.

7. The construction method according to claim 6, further comprising a fifth step of cleaning and derusting the installed and fixed guard rail and painting yellow-black paint.

8. The construction method according to claim 6, wherein the existing structure is a wall or a structural column.

9. The construction method according to claim 6, wherein the distance between two adjacent vertical rods is 1500mm-2000 mm.

Technical Field

The invention relates to the technical field of building construction, in particular to a telescopic protective railing and a construction method.

Background

At present, with the rapid development of modern building industry, in various engineering projects such as office buildings, superstores, houses and the like in building design, high-rise buildings and super high-rise buildings in cities are increasingly used for ensuring the construction safety of the building engineering, the safety protection of the 'four-opening five-edge' part is more and more important in the engineering construction process, and the manpower and financial resources for the protection are greatly increased. The traditional adjacent safety protection facilities in construction sites all adopt guardrails which are built by steel pipes and various fasteners, have rough process and poor stability, are easy to move in the construction process and are difficult to meet the safety protection requirement; the used steel pipes and fasteners are large in quantity, and the transportation is inconvenient during later dismantling.

Therefore, a telescopic tool type edge protection guardrail design which overcomes the defects of the traditional process, saves cost, is simple to operate, is practical and efficient is needed.

We have devised a kind. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information is prior art that is known to a person skilled in the art.

Disclosure of Invention

The invention aims to provide a telescopic protective railing and a construction method, which can solve the construction difficulties that the protective railing in the traditional process adopts a steel pipe and a fastener, the fastener is large in using amount, and the workload of later-stage dismantling and transportation is large.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a telescopic guard rail comprising:

the upright posts are fixed on the concrete floor at intervals according to a certain distance;

the cross rod is a telescopic rod made of a square tube, the cross rod and the vertical rod are connected in a longitudinal and transverse mode to form a protective railing, the cross rod comprises an end telescopic rod and a middle telescopic rod, and a connecting hole is formed in the end telescopic rod;

and the L-shaped fastener is tightly attached to the existing structure, wherein the long edge of the L-shaped fastener is arranged along the thickness direction of the existing structure, and the bolt respectively penetrates through the short edge of the L-shaped fastener and the connecting hole in the end part telescopic rod and is locked to complete the connection of the cross rod and the existing structure.

Compared with the prior art, the invention has the beneficial technical effects that:

1. the invention provides a telescopic protective railing, which comprises a square upright stanchion and a square cross rod, wherein the square upright stanchion and the square cross rod are connected in a criss-cross way to form a fence-shaped structure, the cross rod consists of telescopic rods and comprises a middle telescopic rod and an end telescopic rod, the end telescopic rod is provided with a connecting hole, an L-shaped fastener penetrates through the connecting hole, and the L-shaped fastener is arranged by being clung to the existing structure to complete the connection of the cross rod and the existing structure, so that the existing structure is prevented from being damaged. The existing structure may be a structural column or a wall. Therefore, compared with the guardrail which is built by adopting steel pipes and various fasteners, the telescopic guardrail rod does not damage the wall or the column.

2. The construction method of the telescopic protective handrail provided by the invention has the advantages of simple and stable construction process and convenience in installation and removal, and can accelerate the construction progress of the protective handrail. Compared with the method of producing the roof air shaft pattern set, the method has the advantages that the requirements of the construction process of the top of the air shaft pipe are reduced, the later-stage dismantling and transportation are convenient, the occupied area for storage is small, the appearance is attractive, the circulation use can be realized, and the construction cost is better reduced. Especially accords with the trend of the building industry towards the development of tool and standardization, and has better popularization value.

Further, increase the firm in connection nature of horizontal pole and pole setting to guarantee the stability of concertina type guardrail bar, the horizontal pole with through the branch head bolt fastening between the pole setting.

Further, still include the base, the base will through the inflation screw the pole setting is fixed in on the concrete floor. The base is seted up the bolt hole all around, still is equipped with the rainwater hole on the base, increases the fastness of being connected of pole setting and concrete floor through the base.

Further, the existing structure is a wall or a structural column. Of course, according to actual engineering, the existing structure of the air shaft pipe opening can be a wall body or a structural column.

Further, the certain distance is 1500mm-2000 mm. The interval of pole setting is not more than 2000mm, generally considers a pole setting according to 1500mm, considers not less than three pole settings when the blast well pipe opening is greater than 2000mm and is less than 3500 mm.

The invention also provides a construction method of the telescopic protective railing, which comprises the following steps:

step one, providing the telescopic protective handrail for standby;

drilling holes in the concrete floor according to the reserved bolt holes in the base, and installing the vertical rods on the base and fixing the vertical rods through expansion screws;

step three, arranging an upper cross rod and a lower cross rod along the height direction of the vertical rod, wherein the cross rods are telescopic rods made of square tubes, the joints of the vertical columns and the cross rods are fixed through branch bolts, each cross rod comprises a middle telescopic rod and an end telescopic rod, and each end telescopic rod is provided with a connecting hole;

and step four, arranging the long edge of the L-shaped fastener along the thickness direction of the existing structure, and respectively enabling the bolt to penetrate through the short edge of the L-shaped fastener and the connecting hole in the end part telescopic rod and be locked to complete the connection of the cross rod and the existing structure, so that the installation and the fixation of the guard rail are completed.

And further, a fifth step of cleaning and derusting the installed and fixed protective railing and painting yellow-black paint.

Further, the existing structure is a wall or a structural column.

Further, the distance between two adjacent vertical rods is 1500mm-2000 mm.

Drawings

Fig. 1 is a schematic structural view of a telescopic guard rail according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

FIG. 4 is a top view of an L-shaped fastener in a telescopic guard rail in accordance with an embodiment of the present invention;

fig. 5 is a fixing diagram of a base in the telescopic guard rail according to an embodiment of the invention.

Fig. 6 is a top view of a base in the telescopic guard rail according to an embodiment of the present invention.

In the figure:

1-erecting a rod; 2-a cross bar; a 3-L type fastener; 4-existing structure; 5-a head bolt; 6-a base; 7-bolt; 8-expansion screw; 9-rainwater hole.

Detailed Description

The telescopic guard rail and the construction method thereof according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.