CN219158495U - Anti-falling device for elevator shaft construction - Google Patents

Abstract

The utility model discloses an elevator shaft construction anti-falling device, which belongs to the field of building construction and comprises a triangular prism which is horizontally placed, a plurality of thick square pipes which are equidistantly paved on two long sides of the triangular prism, a plurality of thin square pipes which are inserted into two sides of the thick square pipes, waste templates which are fixedly installed on the thick square pipes and the thin square pipes through dovetail wires, two flat layer locking devices which are welded on one end of an acute angle with a smaller angle of the triangular prism, and four hanging rings which are respectively welded on two long sides of the triangular prism; the hanging ring penetrates out of the waste template; the thin square tube can stretch and retract in the thick square tube to adjust the length; one end of the triangular prism is buckled on each floor of the ground at the elevator shaft opening through a flat floor locking device, and a platform surface formed by the waste templates forms an included angle of 30 degrees with the ground to lean against the inner wall of the elevator shaft. The elevator shaft is low in cost, simple in structure, detachable and reusable, convenient to manufacture and transport and convenient to operate, and can effectively ensure the safety of constructors in the elevator shaft.

Description

Anti-falling device for elevator shaft construction

Technical Field

The utility model relates to the technical field of building construction, in particular to an anti-falling device for elevator shaft construction, which is used for elevator shaft construction of high-rise buildings.

Background

In recent years, along with the continuous expansion of the scale of the building market, the height of a building structure is higher and higher, the construction process is more complex and various, safety accidents of various edges and holes also occur frequently, the accident frequency of falling at a high position in an elevator shaft is increased continuously in the whole building construction accident, and the safety accidents of the building construction site account for a considerable proportion. Thus, protection inside and outside the elevator shaft of a high-rise building is a serious issue in the safety protection of the current construction site. However, from the actual situation of each construction site at present, the protection and operation platform in the elevator shaft is mainly built into an operation platform by using steel pipes and fasteners or a custom-made operation platform, and the requirements of safety protection cannot be met.

According to the requirements of national industry standards of JGJ80-2016 and JGJ59-2011, the elevator shaft must be provided with guard rails or fixed guard doors, and the elevator shaft is internally provided with a safety flat net guard every two layers and not more than 10 meters. According to field investigation, the prior construction sites are provided with protection and operation platforms in the elevator shaft, a derrick type frame body is mainly erected by utilizing steel pipes and fasteners, the operation platforms of workers are arranged above the derrick type frame body, and safety protection is arranged below the derrick type frame body. The method has the advantages that the cost is high, and the potential safety hazard is high, mainly because the derrick frame body is easy to collapse after being unstable in the lifting and fixing process, once an object or a person falls on the derrick frame body, the protection effect of the lower flat net cannot be ensured, and the falling injury accident of a high place is easy to occur.

In order to ensure the safe work of the construction sites, aiming at the current construction requirements of the elevator shaft of each construction site, according to the relevant national industry standard, the inventor of the application researches and designs an elevator shaft construction anti-falling device through the exploration of the annual safe work.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the anti-falling device for the construction of the elevator shaft, which is placed below an operation platform, can prevent the elevator shaft constructors or objects from falling down at high positions, and is simple to manufacture, convenient to operate and stable in service performance.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the elevator shaft construction anti-falling device comprises a triangular prism which is horizontally placed, a plurality of thick square pipes which are equidistantly paved on two long sides of the triangular prism, a plurality of thin square pipes which are inserted into two sides of the thick square pipes, waste templates which are fixedly installed on the thick square pipes and the thin square pipes through dovetail wires, two flat layer locking devices which are welded at one end of an acute angle with a smaller angle of the triangular prism, and four hanging rings which are respectively welded on two long sides of the triangular prism; the hanging ring penetrates out of the waste template; the thin square tube can stretch and retract in the thick square tube to adjust the length; one end of the triangular prism is buckled on each floor of the ground at the elevator shaft opening through a flat floor locking device, and a platform surface formed by the waste templates forms an included angle of 30 degrees with the ground to lean against the inner wall of the elevator shaft.

The technical scheme of the utility model is further improved as follows: the triangular prism comprises 2 right-angle triangular supports welded by three thick square tubes and three thin square tubes connected with the 2 right-angle triangular supports; the lengths of the three square thin pipes are set to 1000mm.

The technical scheme of the utility model is further improved as follows: the thick square pipe of laying on the triangular prism two long limits sets up to eight, inserts eight thin square pipe in the both ends of eight thick square pipes respectively, and every interval 100mm all sets up a plurality of hole that is used for alternate bolted connection fixed on eight thick square pipes and 16 thin square pipes, the length of eight thick square pipes is 16 thin square pipe length 2 times.

The technical scheme of the utility model is further improved as follows: the specification of the coarse square tube adopts a square tube with 100mm x 100 mm; the specification of the fine square tube adopts 80mm square tubes.

The technical scheme of the utility model is further improved as follows: the diameter of the bolt is 16mm.

The technical scheme of the utility model is further improved as follows: the hanging ring is made of round steel with the diameter of 10 mm.

By adopting the technical scheme, the utility model has the following technical progress:

1. according to the elevator shaft size given by the drawing, the telescopic square pipe is adjusted, so that the elevator shaft lifting device can be suitable for elevator shafts with different sizes, the device is fixed in the elevator shaft, and when the construction of the elevator shaft of the elevator is completed, the device is lifted after the operation platform of the elevator shaft is lifted; the self-help leveling locking device is arranged, so that the self-help leveling locking device can safely stop at a specified position and plays a role in preventing falling of constructors in an elevator shaft.

2. The utility model welds the firm triangular prism and the flat layer locking device together, can meet the requirements of safe and reliable lifting function, saves manpower and material resources, can well solve the problem of falling at high positions of workers or objects in the elevator shaft, has simple manufacturing process and convenient use and disassembly, can greatly improve the production safety, and reduces the falling accident at the high positions of the elevator shaft.

3. The utility model tightly connects the lever principle and the triangle with the structural stability and the construction site work, so that the utility model becomes a safe and effective elevator shaft construction anti-falling device with simple and reusable structure.

4. The elevator shaft is low in manufacturing cost, simple in structure, detachable and reusable, convenient to manufacture and transport and convenient to operate, and can effectively ensure the safety of constructors in the elevator shaft.

Drawings

For a clearer description of embodiments of the utility model or of the solutions of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art;

fig. 1 is a schematic view partly in section showing a three-dimensional structure of a fall protection device for elevator shaft construction provided by the utility model;

fig. 2 is a schematic side sectional view of an elevator shaft construction fall protection device provided by the utility model;

FIG. 3 is a schematic view of a flat layer locking device according to an embodiment of the present utility model;

fig. 4 is a schematic overall view of a three-dimensional structure of an elevator shaft construction anti-falling device provided by the utility model;

fig. 5 is a schematic view of the utility model when placed in an elevator hoistway;

the device comprises a waste template, a lifting ring, a thick square tube, a bolt, a triangular support, a thin square tube, a flat layer locking device and a flat layer locking device, wherein the waste template comprises the lifting ring, the thick square tube, the bolt, the triangular support, the thin square tube and the flat layer locking device.

Detailed Description

It should be noted that, in the description of the present utility model, the terms "upper," "lower," "front," "rear," "left," "right," "longitudinal," "transverse," "inner," "outer," and the like refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, and are merely for convenience of description and understanding of the technical solution of the present utility model, the present utility model is not limited to the above description, and the present utility model is not limited to the above description, but is also limited to the examples, and changes, modifications, additions or substitutions made by those skilled in the art within the spirit and scope of the present utility model should be considered as the scope of the present utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question 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.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

The utility model is described in further detail below with reference to the attached drawings and examples:

as shown in fig. 1-5, the anti-falling device for elevator shaft construction comprises a triangular prism which is horizontally placed, a plurality of thick square pipes 3 which are equidistantly paved on two long sides of the triangular prism, a plurality of thin square pipes 6 which are inserted into two sides of the plurality of thick square pipes 3, waste templates 1 which are fixedly installed on the thick square pipes 3 and the thin square pipes 6 through dovetail wires, two flat layer locking devices 7 which are welded on one end of an acute angle with smaller angle of the triangular prism, and four hanging rings 2 which are respectively welded on two long sides of the triangular prism; the hanging ring 2 penetrates out of the waste template 1; the thin square tube 6 can stretch and retract in the thick square tube 3 to adjust the length; one end of the triangular prism is buckled on each floor of the ground at the elevator shaft opening through a flat floor locking device 7, and a platform surface formed by the waste template 1 forms an included angle of 30 degrees with the ground to lean against the inner wall of the elevator shaft.

The flat layer locking device 7 is welded at one end of the triangular bracket, which is at a smaller acute angle, and the flat layer locking device 7 is welded together by utilizing the lever principle, the weight of the locking end is smaller than that of the movable end (two additional balancing weights are added at the movable end), the locking state is realized when no external force acts, the locking end is acted on the side surface of the main body floor of the building when the external force is lifted, the locking end is retracted into the flat layer locking device 7, and the locking state can be restored when no external force acts.

Further, the triangular prism comprises 2 right-angle triangular supports 5 welded by three thick square tubes 3 and three thin square tubes 6 connected with the 2 right-angle triangular supports 5; the lengths of the three square tubes 6 are set to 1000mm. According to calculation, four hanging rings 2 are welded on a thick square tube 3 on the long side of a triangular support 5, so that the triangular support can be lifted at a fixed angle, when the lifting is needed, the hanging rings 2 can be directly lifted to the upper floor of an elevator shaft by using a steel wire rope, and in the lifting process, a flat floor locking device 7 can be locked at each floor to prevent the device from sliding downwards.

Further, the number of the thick square pipes 3 laid on two long sides of the triangular prism is eight, the two ends of the eight thick square pipes 3 are respectively inserted with eight thin square pipes 6, a plurality of holes (the diameter of each hole is 18 mm) for connecting and fixing the threaded bolts 4 are formed in each of the eight thick square pipes 3 and the 16 thin square pipes 6 at intervals of 100mm, the length of the eight thick square pipes 3 is 2 times that of the 16 thin square pipes 6, the length of the eight thick square pipes 3 is generally 1000mm, and the length of the 16 thin square pipes 6 is 500mm. To accommodate the width of the interior of the hoistway. According to the size of the construction elevator shaft, the extending length of the 16 fine square pipes 6 extending into the eight thick square pipes 3 can be adjusted, so that the elevator shaft is suitable for safe and reliable use of elevator shafts with various sizes.

Further, the specification of the thick square tube 3 adopts square tubes with 100mm x 100 mm; the specification of the fine square tube 6 adopts 80mm square tubes.

Further, the diameter of the bolt 4 is 16mm.

Further, the hanging ring 2 is made of round steel with the diameter of 10 mm.

Specifically, the anti-falling device for elevator shaft construction comprises a waste template 1, a lifting ring 2, a thick square tube 3, a bolt 4, a triangular bracket 5, a thin square tube 6 and a flat layer locking device 7; the waste templates 1 and the hanging rings 2 made of round steel with the diameter of 10mm are common materials at the construction site. 80mm by 80mm fine square tubes 6 and 100mm by 100mm coarse square tubes 3 are purchased directly from the market, and flat layer locking devices 7 are custom made at the steel member manufacturer. The manufacturing method is simple, the materials used are all common materials for construction engineering, the construction safety and reliability of the elevator shaft can be improved, the construction cost is reduced, the resources are saved, and the working efficiency can be improved.

The using method comprises the following steps:

the utility model relates to a device for preventing a lift shaft constructor or object from falling at a high position, which considers that the lift shaft of a general construction site is provided with shear wall boards on three sides except an inlet door opening, and improves the safety feasibility of the lift shaft according to convenient operation in order to ensure the safety of constructors and prevent the falling accident at the high position of the constructors in the construction process.

As shown in fig. 5, the utility model is placed below an elevator shaft working platform, one end of the triangular prism is buckled on each floor of the elevator shaft through a flat floor locking device 7, and the platform surface formed by the waste template 1 forms an included angle of 30 degrees with the floor to lean against the inner wall of the elevator shaft. When the elevator needs to be lifted, the lifting ring 2 can be connected by a steel wire rope to be directly lifted to the upper floor of the elevator shaft, and the flat floor locking device 7 can be locked at each floor to prevent the device from sliding downwards in the lifting process. After the flat layer locking device 7 is installed, the lifting process does not need to be operated by constructors, and only the operator needs to monitor the lifting process.

The device is applied to the construction of the elevator shaft, is simple to operate and high in practicability, achieves a good protection effect on the premise of ensuring safety and reliability, reduces the construction cost, and is beneficial to safety construction and civilized construction.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (6)

1. The utility model provides a device is prevented falling in elevator shaft construction which characterized in that: the triangular prism comprises a triangular prism which is horizontally placed, a plurality of thick square pipes (3) which are equidistantly paved on two long sides of the triangular prism, a plurality of thin square pipes (6) which are inserted into two sides of the plurality of thick square pipes (3), waste templates (1) which are fixedly installed on the thick square pipes (3) and the thin square pipes (6) through dovetail wires, two flat layer locking devices (7) which are welded on one end of an acute angle with a smaller triangular prism angle, and four hanging rings (2) which are respectively welded on two long sides of the triangular prism; the hanging ring (2) penetrates out of the waste template (1); the thin square tube (6) can stretch and retract in the thick square tube (3) to adjust the length; one end of the triangular prism is buckled on each floor of the ground at the elevator shaft through a flat floor locking device (7), and a platform surface formed by the waste template (1) forms an included angle of 30 degrees with the ground to lean against the inner wall of the elevator shaft.

2. The elevator shaft construction fall protection device of claim 1, wherein: the triangular prism comprises 2 right-angle triangular supports (5) welded by three thick square tubes (3) and three thin square tubes (6) connected with the 2 right-angle triangular supports (5); the lengths of the three square thin pipes (6) are set to be 1000mm.

3. The elevator shaft construction fall protection device of claim 1, wherein: the square tube structure is characterized in that the number of the thick square tubes (3) laid on the two long sides of the triangular prism is eight, eight thin square tubes (6) are respectively inserted into the two ends of the eight thick square tubes (3), a plurality of holes for inserting bolts (4) for connection and fixation are formed in the eight thick square tubes (3) and the 16 thin square tubes (6) at intervals of 100mm, and the length of the eight thick square tubes (3) is 2 times that of the 16 thin square tubes (6).

4. A fall arrest device for elevator shaft construction according to any one of claims 1-3, wherein: the specification of the thick square tube (3) adopts square tubes with 100mm x 100 mm; the specification of the fine square tube (6) adopts square tubes with 80mm x 80 mm.

5. A drop protection device for elevator shaft construction according to claim 3, wherein: the diameter of the bolt (4) is 16mm.

6. The elevator shaft construction fall protection device of claim 1, wherein: the hanging ring (2) is made of round steel with the diameter of 10 mm.

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