CN220100747U - Telescopic floor edge guard rail - Google Patents

Abstract

The utility model provides a telescopic floor edge guard rail, which comprises a column base, a column fixed on the column base, a telescopic handrail frame fixed on the column and a safety net fixed on the telescopic handrail frame, wherein the column base is provided with a plurality of guide rails; the telescopic handrail frame comprises two vertical handrails and a transverse handrail vertically connected between the two vertical handrails, and the vertical handrails are respectively fixed on adjacent upright posts through connecting fasteners. The telescopic floor edge guard rail provided by the utility model has the advantages of simple structure, convenience in manufacturing, convenience in mounting and dismounting, small influence on the building structure, economy, environmental friendliness, reusability and convenience in arrangement of the safety net, and can solve the problem of the existing guard rail.

Description

Telescopic floor edge guard rail

Technical Field

The utility model relates to the technical field of safety protection of constructional engineering, in particular to a telescopic floor edge protection guardrail.

Background

With the development and advancement of the Chinese economy in recent years, the construction industry, which is one of the national economy support industries, has also rapidly advanced, and at the same time, safety accidents occurring in construction sites of construction projects are increasing. The international labor organization indicates that the construction industry is one of the world's major production industries, which, although it has begun to be mechanized, is still a highly labor intensive industry. Among all the production industries, the construction industry is one of the industries facing the greatest risk when workers work.

The construction industry has the characteristics of large fluidity, multiple open-air operations, large product volume, various forms, long construction period, high labor intensity and the like, and safety accidents such as high falling, object striking, electric shock, mechanical injury, collapse and the like often occur on a construction site, and the occurrence of the safety accidents on the construction site can have great negative influence on lives, properties, society and environment of practitioners.

Aiming at the characteristic of high risk in the building industry, research and practitioners at home and abroad are constantly researching how to reduce the safety risk of the construction site and reduce the occurrence of the safety accident of the construction site, but a method for fundamentally solving the problem is not always found. The construction site safety, especially the safety problem of construction high-place operation, has always plagued the construction industry. From the perspective of house municipal engineering safety production accident situation release in recent years by housing and urban and rural construction departments, although the number of safety accidents and death people in the whole building industry is reduced year by year, the occurrence number of falling accidents at high places is always high. With the recent urban hot trend of China, high-rise and super high-rise buildings are increased year by year, and the construction accidents at high places are more frequent. According to statistics of municipal engineering accidents of the national houses in recent years, the falling accidents at the high places in each year account for more than 50% of the total number of accidents.

The occurrence place of high-altitude falling accidents is usually a reserved hole and a border of an industrial building and a dangerous area for installing, dismantling, maintaining and the like of vertical transportation mechanical equipment. The safety protection equipment for the edge operation mainly comprises a protection railing, a safety net, sealing treatment and the like. For example, guard rails must be provided around the periphery of roofs and floors without external scaffolding, balconies without balustrades or balustrades; for the adjacent sides of the outer sides facing the streets, guard rails are arranged, and safety nets or other measures are arranged for full sealing treatment.

Because the specific environments of the positions of the guard rails to be installed on the periphery of different roofs and floors are different, the guard rails are required to be manufactured and installed on site according to the specific environments and the guard rail sizes to be set, the installation and manufacture period is long, the disassembly is inconvenient, and the repeated utilization is not used. If the prior guard rail with fixed structure is used, the length, the height and other dimensions of the guard rail cannot be flexibly adjusted according to the use requirement in the use process, a plurality of guard rails are needed to be spliced, and the guard rail is difficult to be suitable for structures of different sites.

Based on the above technical problems, a need exists for a guard rail that can be easily assembled and disassembled.

Disclosure of Invention

In view of the above problems, the utility model aims to provide a telescopic floor edge protection guardrail rod, which solves the problems of longer installation and disassembly period of floor edge protection and more troublesome adjustment of the size of a protection guardrail in the existing construction process.

The utility model provides a telescopic floor edge guard rail which comprises a stand column base, stand columns fixed on the stand column base, a telescopic handrail frame fixed on the stand columns and a safety net fixed on the telescopic handrail frame, wherein the stand column base is provided with a plurality of telescopic guard rail frames; wherein,

the telescopic handrail frame comprises two vertical handrails and a transverse handrail vertically connected between the two vertical handrails, and the vertical handrails are respectively fixed on adjacent upright posts through connecting fasteners.

In addition, the column base 1 is preferably in a plate-like structure, and is fixedly installed at a position more than 20cm from the outer edge of the floor by expansion bolts.

In addition, the preferable structure is that the whole of the transverse handrail and the vertical handrail is square column, and the inside is hollow and two ends are closed; the transverse handrail is a square steel pipe telescopic sleeve member formed by sleeving 3 sections of square steel pipes with different sizes in a sleeved mode, and the transverse handrail can freely stretch and retract within a preset range.

In addition, the preferable structure is that the left side and the right side of the vertical handrail are respectively provided with handrail frame fixing pieces; the handrail frame fixing piece is fixedly connected with the connecting fastener through bolts.

In addition, it is preferable that an anti-falling buckle is provided between the square steel pipes constituting the square steel pipe telescopic sleeve.

Furthermore, it is preferable that the safety net is fixed to the telescopic handrail frame by a safety net rotating shaft, and the safety net rotating shaft is fixed to the vertical handrail by a safety net rotating shaft fixing member.

In addition, the safety net rotating shaft preferably comprises a vertical rotating shaft, rotating screws arranged at two ends of the vertical rotating shaft and springs arranged on the rotating screws at the upper end positions of the vertical rotating shaft; the vertical rotating shaft is integrally cylindrical, two hollow ends in the vertical rotating shaft are sealed, and the rotating screw is welded and fixed at two ends of the vertical rotating shaft.

In addition, preferably, the connecting fasteners are respectively arranged at the upper part and the lower part of the upright post;

bolt holes are formed in the connecting fastener and the handrail frame fixing piece;

the upright posts are fixedly connected with the telescopic handrail frame through bolts penetrating through the bolt holes.

In addition, the upright post base, the upright posts, the transverse handrails, the vertical handrails, the safety net rotating shaft and the connecting fasteners are all made of metal.

Furthermore, it is preferable that the length of the vertical handrail is the same as the length of the upright; the length of the vertical rotating shaft is 10cm shorter than that of the upright post.

Compared with the prior art, the telescopic floor edge protection guardrail provided by the utility model has the advantages of simple structure, convenience in manufacturing, convenience in mounting and dismounting, small influence on a building structure, economy, environmental friendliness, reusability and convenience in arrangement of a safety net, and can effectively solve the problems of longer mounting and dismounting period of floor edge protection and relatively troublesome adjustment of the size of the protection guardrail in the construction process.

Drawings

Other objects and results of the present utility model will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the utility model.

In the drawings:

FIG. 1 is a schematic elevational view of a retractable floor edge guard rail according to an embodiment of the present utility model;

FIG. 2 is a schematic elevational view of a retractable floor edge guard rail according to an embodiment of the present utility model, without a safety net attached thereto;

fig. 3 is a schematic elevational view of the telescopic handrail frame according to an embodiment of the utility model;

fig. 4 is a schematic front elevation structure of a rotation shaft of a safety net according to an embodiment of the present utility model.

The reference numerals include: the safety net comprises a column base 1, columns 2, expansion bolts 3, a telescopic handrail frame 4, a transverse handrail 4-1, a vertical handrail 4-2, a handrail frame fixing piece 4-3, a safety net rotating shaft fixing piece 4-4, a safety net 5, a safety net rotating shaft 6, a vertical rotating shaft 6-1, a rotating screw 6-2, a spring 6-3, a connecting fastener 7, bolts 8 and screw holes 9.

The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

It should be noted that, in the technical description of the present utility model, the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Fig. 1 shows a front elevation structure of a telescopic floor edge guard rail provided by an embodiment of the utility model, fig. 2 shows a front elevation structure of a telescopic floor edge guard rail without a safety net mounted thereon, fig. 3 shows a front elevation structure of a telescopic handrail frame according to an embodiment of the utility model, and fig. 4 shows a front elevation structure of a safety net rotating shaft according to an embodiment of the utility model.

As can be seen from fig. 1 to 4, the telescopic floor edge guard rail provided by the present utility model mainly comprises a column base 1, a column 2 fixed on the column base 1, a telescopic handrail frame 4 fixed on the column 2, and a safety net 5 fixed on the telescopic handrail frame 4.

Wherein, stand base 1 can be fixed at the edge of floor face limit through expansion bolts. Specifically, as an example, the column base 1 is disposed at a position greater than 20cm from the floor edge outer eave, and is integrally in a plate-like structure, bolt holes are provided at four foot positions of the column base 1, and the column base 1 is fixed at the edge of the floor edge by the expansion bolts 3 penetrating through the bolt holes.

The upright post 2 can be welded and fixed on the upper part of the upright post base 1, and can be inserted into or riveted on the upright post base 1 through other connecting structures. For example, a connecting groove (not shown in the figure) is welded and fixed on the column base 1, and the column 2 is inserted and fixed on the connecting groove. In one embodiment of the utility model, the upright post 2 is in a square column shape as a whole, the inside is hollow, the height is 120cm, and the upright post is welded and fixed on the upper part of the upright post base 1; in another embodiment of the utility model, the upright post 2 is cylindrical in whole, hollow in inside and 130cm in height, and is inserted and fixed on the upright post base through a connecting groove welded and fixed on the upright post base.

The telescopic handrail frame 4 is formed by combining a plurality of transverse handrails 4-1 and two vertical handrails 4-2, and the two vertical handrails 4-2 are respectively fixed on the adjacent upright posts 2 through connecting fasteners 7, so that the telescopic handrail frame 4 is fixed between the two adjacent upright posts 2.

In a specific embodiment of the utility model, the telescopic handrail frame 4 consists of 5 mutually parallel transverse handrails 4-1 and 2 vertical handrails 4-2 welded together, the transverse handrails 4-1 being evenly distributed in the vertical handrails 4-2 with one at each end and three in the middle. The transverse handrail 4-1 and the vertical handrail 4-2 are integrally square column-shaped, the inside of the transverse handrail is hollow, two ends of the transverse handrail are closed, and the transverse handrail 4-1 is a square steel pipe telescopic sleeve formed by sleeving 3 sections of square steel pipes with different preset lengths (such as 60cm long), so that the transverse handrail can freely stretch and retract within a preset range (such as 60cm-180 cm). The left and right sides of the vertical handrail 4-2 are provided with handrail frame fixing pieces 4-3, and the handrail frame fixing pieces 4-3 are fixedly connected with the connecting fasteners 7 through bolts.

In order to prevent the square steel tube telescopic sleeve from falling off in the telescopic use process, an anti-falling buckle (not shown in the figure) can be arranged between the square steel tubes forming the square steel tube telescopic sleeve.

Of course, other shapes of upright posts, such as angle steel, can be selected according to actual needs; also, the telescopic handrail frame can be cut and manufactured by round steel pipes or angle steel or any combination of angle steel and square steel.

The safety net 5 can be fastened directly to the telescopic handrail frame 4. In particular, the four corners of the safety net 5 can be fixed to the four corners of the telescopic handrail frame 4 by means of fasteners such as ropes, hooks, etc.

In a specific embodiment of the utility model the safety net 5 is fixed to the telescopic handrail frame 4 by means of a safety net swivel shaft 6. Specifically, two ends of the safety net 5 are fixedly connected to two safety net rotating shafts 6 through binding, a safety net rotating shaft fixing piece 4-4 is arranged on the front face of the vertical handrail 4-2, and the safety net rotating shaft 6 is fixed to the vertical handrail 4-2 through the safety net rotating shaft fixing piece 4-4.

More specifically, as an example, fig. 4 is a schematic front elevation structure of a rotating shaft of a safety net according to an embodiment of the present utility model. As shown in fig. 4, in this embodiment, the safety net rotating shaft 6 includes a vertical rotating shaft 6-1, rotating screws 6-2 disposed at both ends of the vertical rotating shaft 6-1, and springs 6-3 disposed on the rotating screws 6-2 at the upper end position, wherein the vertical rotating shaft 6-1 is entirely cylindrical and has both hollow ends closed inside, the rotating screws 6-2 are fixed at both ends of the vertical rotating shaft 6-1 by welding, and the safety net rotating shaft 6 is fixed on the vertical handrail 4-2 by inserting the rotating screws 6-2 at both ends thereof.

Specifically, safety net rotating shaft fixing pieces 4-4 are respectively arranged at the upper end and the lower end of the vertical handrail 4-2, the distance between the two safety net rotating shaft fixing pieces 4-4 is slightly larger than the sum of the lengths of the vertical rotating shaft 6-1 and the rotating screw rod 6-2 at the lower end and smaller than the sum of the lengths of the vertical rotating shaft 6-1 and the rotating screw rod 6-2 at the upper end, and the safety net rotating shaft 6 is installed and fixed between the two safety net rotating shaft fixing pieces through a compression spring 6-3. In the installation process, the rotating screw rod 6-2 at the upper end is inserted into the safety net rotating shaft fixing piece 4-4 arranged at the upper end of the vertical handrail 4-2, then the safety net rotating shaft 6 is lifted up to compress the spring 6-3, the rotating screw rod 6-2 at the lower end is inserted into the safety net rotating shaft fixing piece 4-4 arranged at the lower end of the vertical handrail 4-2, then the safety net rotating shaft 6 is released, and the elastic force of the spring 6-3 is released to fix the safety net rotating shaft in the safety net rotating shaft fixing piece 4-4.

And, the connecting fastener 7 is set up in the upper portion and lower portion of the pillar 2 separately, there are bolt holes 9 on connecting fastener 7 and handrail frame mount 4-3, can fix pillar 2 and scalable handrail frame 4 through the bolt 8 penetrating in bolt hole 9, and then fix the safety net spindle 6 on scalable handrail frame 4, thus fasten the safety net 5 on scalable floor of the utility model faces the edge guard rail.

For improved durability of the telescopic floor edge guard rail, in the embodiments shown in fig. 1-4, the column base 1, the column 2, the transverse railing 4-1, the vertical railing 4-2, the safety net shaft 6, and the connecting fasteners 7 are all made of metal.

In a specific embodiment of the utility model, the length of the vertical handrail 4-2 constituting the telescopic handrail frame 4 is the same as the length of the upright 2, and the vertical rotation axis 6-1 is shorter than the upright 2 by 10cm, since it is only necessary to fix the safety net 5 in the middle of the telescopic handrail frame 4 (without having to cover the border of the telescopic handrail frame 4).

Correspondingly, the length of the upper end of the rotary screw rod 6-2 is 7cm, the length of the lower end is 5cm, and the spring 6-3 is fixed at the upper end of the rotary screw rod 6-2, and the length is 5cm.

The working principle of the telescopic floor edge protection guardrail rod is as follows:

firstly, a column base 1 welded with a column 2 is fixedly connected with a concrete structure of a floor edge through an expansion bolt 3, and the expansion bolt is connected in a mode that the telescopic floor edge protection railing can be disassembled and reused and has small influence on the concrete structure;

then, the main body structure of the telescopic floor edge guard rail is assembled. Specifically, 5 transverse handrails 4-1 and two vertical handrails 4-2 are welded and connected to form a telescopic handrail frame 4, and the transverse handrails can freely stretch and retract between 60cm and 180 cm; and then the safety net rotating shaft 6 which is fixedly connected with the safety net 5 through binding is spliced and fixed on the safety net rotating shaft fixing piece 4-4 on the front surface of the vertical handrail 4-2.

According to the telescopic floor edge protection guardrail provided by the utility model, the structure is simple, the manufacture is convenient, the installation and the disassembly are convenient, the influence on the building structure is small, the safety net is economical and environment-friendly and can be repeatedly utilized, the safety net is convenient to arrange, and the problems of long installation and disassembly period of floor edge protection and relatively troublesome adjustment of the size of the protection guardrail in the construction process can be effectively solved.

The retractable floor threshold guard rail according to the present utility model is described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications may be made to the retractable floor edge guard rail of the present utility model as set forth above without departing from the teachings of the present utility model. Accordingly, the scope of the utility model should be determined from the following claims.

Claims (7)

1. The telescopic floor edge guard rail is characterized by comprising a column base, a column fixed on the column base, a telescopic handrail frame fixed on the column and a safety net fixed on the telescopic handrail frame; wherein,

the telescopic handrail frame comprises two vertical handrails and a transverse handrail vertically connected between the two vertical handrails, and the vertical handrails are respectively fixed on adjacent upright posts through connecting fasteners;

the whole of the transverse handrail and the whole of the vertical handrail are square columns, and the inside of the transverse handrail and the whole of the vertical handrail is hollow and both ends of the vertical handrail are closed;

the transverse handrail is a square steel pipe telescopic sleeve member formed by sleeving 3 sections of square steel pipes with different sizes in a sleeved mode, so that the transverse handrail can freely stretch and retract within a preset range;

the left side and the right side of the vertical handrail are respectively provided with handrail frame fixing pieces; the handrail frame fixing piece is fixedly connected with the connecting fastener through a bolt;

the safety net is fixed on the telescopic handrail frame through a safety net rotating shaft, and the safety net rotating shaft is fixed on the vertical handrail through a safety net rotating shaft fixing piece.

2. The retractable floor border guard rail of claim 1,

the upright post base is of a plate-shaped structure and is fixedly arranged at a position which is more than 20cm away from the outer eave of the floor via expansion bolts.

3. The retractable floor border guard rail of claim 2,

an anti-falling buckle is arranged between the square steel pipes forming the square steel pipe telescopic sleeve.

4. The retractable floor border guard rail of claim 1,

the safety net rotating shaft comprises a vertical rotating shaft, rotating screws arranged at two ends of the vertical rotating shaft and springs arranged on the rotating screws at the upper end positions of the vertical rotating shaft; the vertical rotating shaft is integrally cylindrical, two hollow ends in the vertical rotating shaft are sealed, and the rotating screw is welded and fixed at two ends of the vertical rotating shaft.

5. The retractable floor border guard rail of claim 4,

the connecting fasteners are respectively arranged at the upper part and the lower part of the upright post;

bolt holes are formed in the connecting fastener and the handrail frame fixing piece;

the upright posts are fixedly connected with the telescopic handrail frame through bolts penetrating through the bolt holes.

6. The retractable floor border guard rail of claim 5,

the upright post base, the upright posts, the transverse handrails, the vertical handrails, the safety net rotating shaft and the connecting fasteners are all made of metal.

7. The retractable floor border guard rail of claim 4,

the length of the vertical handrail is the same as that of the upright post;

the length of the vertical rotating shaft is 10cm shorter than that of the upright post.