CN221053295U

CN221053295U - Convenient construction stair

Info

Publication number: CN221053295U
Application number: CN202322794717.5U
Authority: CN
Inventors: 冯天星; 李炎; 符濒心; 吴瑞; 王浪; 刘鑫淼
Original assignee: China Huashi Enterprises Co Ltd
Current assignee: China Huashi Enterprises Co Ltd
Priority date: 2023-10-17
Filing date: 2023-10-17
Publication date: 2024-05-31
Anticipated expiration: 2033-10-17

Abstract

The utility model discloses a convenient construction stair, which comprises a tread frame and connecting pieces, wherein the side surface of the tread frame is in an inverse 7 shape; the connecting piece comprises a first long plate and a second long plate, one through hole on the pedal plate frame is hinged with the opening on the first long plate, and the other through hole on the pedal plate frame is hinged with the opening on the second long plate. The utility model assembles the step plate frame and the connecting piece into a whole, and utilizes the principle that the parallelogram is deformable but always kept parallel, the side surface of the step plate frame adopts the shape of inverse 7, no matter how much degree angle is formed between the upper side and the lower side of the parallelogram and the ground, the top surface of the step plate frame can always keep parallel with the ground, thereby ensuring that a stair passageway can be formed for construction; when a channel is not needed, the device can be hung away and can be used in a turnover way; when the lifting device is required to be used, the lifting device can be lifted by using a tower crane and the like, and is rapid, convenient and high in practicability.

Description

Convenient construction stair

Technical Field

The utility model relates to the field of building engineering construction, in particular to a convenient construction stair.

Background

The prior assembly type construction is increasingly applied to urban house buildings, the prior assembly type construction is required to reach more than 30% of design, most of the prior assembly type construction adopts composite floor slabs, prefabricated stairways and aluminum templates, and as the prefabricated stairway construction can be completed after the construction completion strength of the earlier stage floor slab is reached, on-site construction workers need to go to the working face without channels, and the prior assembly type construction is required to be used for manufacturing temporary stairways by erecting steel pipes.

In the prior art, too many steel pipe frames are erected manually to form a channel, a buckle piece is needed to be welded and assembled even among different steel pipes in the steel pipe lap joint process, so that temporary stairway assembly or disassembly is difficult, meanwhile, the weight of the all-steel pipe assembly stairway is large, the bearing weight is reduced, a large amount of labor is needed for temporarily erecting the all-steel pipe assembly stairway, the bearing of the all-wood stair made of wood plates is small, and the side faces are easy to break, so that the protectiveness is poor.

Disclosure of utility model

The utility model provides a convenient construction stair, which aims to solve the problems that the existing steel pipe lap joint process is complex in operation, large in manual input amount, small in bearing capacity of wood stairs customized by wood boards and easy to break on the side surfaces.

The technical scheme of the utility model is as follows:

The convenient construction stair is characterized by comprising a tread plate frame and connecting pieces, wherein the connecting pieces are connected with a plurality of tread plate frames, and tread plates are arranged on the tread plate frames;

the side surface of the pedal frame is in an inverse 7 shape, the two sides of the side surface of the pedal frame are vertical, and through holes are formed at one end, away from each other, of the two sides of the side surface of the pedal frame;

The connecting piece includes first longeron and second longeron, first longeron with the second longeron is parallel, first longeron with all be provided with a plurality of trompils on the second longeron, a through-hole on the step board frame with the trompil on the first longeron is articulated, another through-hole on the step board frame with the trompil on the second longeron is articulated for when first longeron is certain contained angle with ground, the top surface of step board frame still is in the horizontality.

According to the utility model of the scheme, the step plate frame is formed by welding angle steel.

According to the utility model of the scheme, the two angle steels are welded to the side surfaces of the tread plate frames, and the tread plate frames are formed after the two angle steels are welded to the side surfaces of the tread plate frames.

According to the utility model of the above aspect, the spacing between the openings in the first long plate is the same as the spacing between the openings in the second long plate.

According to the present utility model of the above aspect, the spacing between the openings of the first long plate is equal to the width of the top surface of the step plate frame.

Further, the first long plate and the second long plate are rectangular steel through.

According to the utility model of the above scheme, a first short plate is embedded in one end part of the first long plate, and the outer diameter of the first short plate is equal to the inner diameter of the first long plate.

Further, a second short plate is embedded in the end part of the second long plate, and the outer diameter of the second short plate is equal to the inner diameter of the second long plate.

Further, the step plate frame is connected with the first long plate through bolts, and the step plate frame is connected with the second long plate through bolts.

Further, still include the protection railing, the protection railing includes a plurality of pole settings and a horizontal pole, the both ends of pole setting are connected respectively the horizontal pole with first longeron.

Further, the step plate is a wood purlin.

According to the scheme, the utility model has the beneficial effects that the pedal frame and the connecting piece are assembled into a whole, the side surface of the pedal frame adopts the inverse 7 shape by utilizing the principle that the parallelogram is deformable but always kept parallel, and the top surface of the pedal frame can always keep parallel with the ground no matter how much degree of angle is formed between the upper side and the lower side of the parallelogram and the ground, so that a stair passageway can be formed for construction. When the device is parallel to the ground, the device can be used as a horizontal bridge channel, and when the device forms an angle with the ground, the device can be used as a vertical stair channel, and the side surface of the tread plate frame is in an inverted 7 shape, so that the top surface of the tread plate frame can be kept horizontal, and the walking is ensured. When the channel is not needed, the device can be hung away and can be used in a turnover way. When the device is needed to be used, the device can be used by being hoisted by using a tower crane and the like, and is rapid and convenient. The temporary stairway or bridge pavement erected by using materials such as steel pipe wood beams is reduced, and the practicability is high.

Drawings

FIG. 1 is a side view of a connector of the present utility model in a beveled condition;

FIG. 2 is a side cross-sectional view of the connector of the present utility model in a beveled condition;

FIG. 3 is a side view of the connector of the present utility model in a parallel configuration;

FIG. 4 is a side cross-sectional view of the connector of the present utility model in a parallel configuration;

FIG. 5 is a front cross-sectional view of the connector of the present utility model in a parallel configuration;

fig. 6 is a schematic structural view of the step plate frame of the present utility model.

In the drawings, the respective reference numerals are as follows:

1. A tread frame; 11. a through hole;

2. A connecting piece; 21. a first long plate; 22. a second long plate; 23. opening holes; 25. a first short plate; 26. a second short plate;

3. a protective rail; 31. a vertical rod; 32. a cross bar;

4. And (5) a bolt.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that the terms "comprising" and "having" and any variations thereof in the description and claims of the present utility model are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus. The term "disposed" and like terms are to be broadly interpreted, and may be fixedly connected, detachably connected, or integrally formed, for example; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "rear", "bottom", etc. are directions or positions based on those shown in the drawings, and are merely for convenience of description, and are not to be construed as limiting the present technical solution.

As shown in figures 1-6, the convenient construction stair is an auxiliary channel or an up-down stair for construction of building engineering, can be used as a temporary channel for construction when the device is parallel to the ground, can be used as a horizontal construction bridge channel, can be used as a construction stair when the device forms a certain angle with the ground, and can be used as a vertical construction stair channel.

Specifically, the device comprises a pedal frame 1 and a connecting piece 2, wherein the connecting piece 2 is connected with a plurality of pedal frames 1, and the pedal frames 1 are provided with pedals; the side surface of the pedal frame 1 is in an inverse 7 shape, the two sides of the side surface of the pedal frame 1 are vertical, and through holes 11 are arranged at one end, away from each other, of the two sides of the side surface of the pedal frame 1; the connecting piece 2 comprises a first long plate 21 and a second long plate 22, the first long plate 21 and the second long plate 22 are parallel, a plurality of holes 23 are formed in the first long plate 21 and the second long plate 22, one through hole 11 in the pedal plate frame 1 is hinged with the hole 23 in the first long plate 21, the other through hole 11 in the pedal plate frame 1 is hinged with the hole 23 in the second long plate 22, and when the first long plate 21 forms a certain included angle with the ground, the top surface of the pedal plate frame 1 is still in a horizontal state.

The portable construction stair is based on the parallelogram principle, the first long plate 21 and the second long plate 22 are parallel to the ground or are angled, the first long plate 21 and the second long plate 22 can be kept in a parallel state, when one end of the first long plate 21 and one end of the second long plate 22 are fixed with the ground, the other end of the first long plate 21 and the other end of the second long plate 22 are lifted or lowered, the tread frame 1 with the side surface in the shape of an inverted 7 can only translate up and down left and right and can not rotate, and the side surfaces of the tread frame 1 ensure that the first long plate 21 and the second long plate 22 can be kept parallel to the ground when forming any angle with the ground; when parallel to the ground, the tread plate can just fully form a bridge pavement.

The utility model assembles the step plate frame 1 and the connecting piece 2 into a whole, and utilizes the principle that the parallelogram is deformable and always kept parallel (the parallelogram is formed by the length between two holes 23 of a first long plate 21, the length between two holes 23 of a second long plate 22 and the connecting lines of two sides of the side faces of two adjacent step plate frames 1), the side faces of the step plate frames 1 are in an inverse 7 shape, no matter how much angle is formed between the upper side and the lower side of the parallelogram and the ground, the top face of the step plate frame 1 can always keep parallel with the ground, thereby ensuring that a stair passageway can be formed for construction. When the device is parallel to the ground, the device can be used as a horizontal bridge channel, and when the device forms an angle with the ground, the device can be used as a vertical stair channel, and the top surface of the pedal frame 1 can be kept horizontal due to the fact that the side surface of the pedal frame 1 is in the shape of the reverse 7, so that walking can be ensured. When the channel is not needed, the device can be hung away and can be used in a turnover way. When the device is needed to be used, the device can be used by being hoisted by using a tower crane and the like, and is rapid and convenient. The temporary stairway or bridge pavement erected by using materials such as steel pipe wood beams is reduced, and the practicability is high.

In the present embodiment, the step plate frame 1 is welded by angle steel. Specifically, two angle steel are welded to the side surfaces of the step plate frame 1, and the step plate frame 1 is formed after the two angle steel are welded to the side surfaces of the step plate frame 1. The first long plate 21 and the second long plate 22 are rectangular steel through holes. The step board is a wood purlin. The step plate frame 1 is connected to the first long plate 21 by bolts 4, and the step plate frame 1 is connected to the second long plate 22 by bolts 4. The steel pipe, the angle steel and other materials are welded and assembled into a whole, and the steel pipe welding machine has the advantages of being strong in bearing capacity, good in durability, easy to install and detach, economical, practical, environment-friendly and the like, and is suitable for short-term construction projects. The convenient construction stair composed of the steel pipe and the steel angle are made of metal materials with higher strength, and the whole convenient construction stair formed by welding and assembling has higher bearing capacity, so that the weight and frequent use of constructors can be met. The durability is good, and steel lead to and angle steel have better corrosion resistance and weatherability, can use in comparatively abominable environment, and the welding point also can strengthen the whole durability of stair after handling moreover. Easy installation and dismantlement, convenient construction stair need assemble and dismantle in different construction sites generally, use steel to lead to and angle steel welded stair overall structure is comparatively simple, easily installs and dismantles, can improve the efficiency of construction. The convenient construction stair using steel and angle steel for welding is low in cost, economical and practical, and suitable for short-term construction projects. The environment-friendly type water dispenser is environment-friendly, can be recycled after being used, and reduces pollution to the environment.

In the preferred embodiment, the spacing between the openings 23 in the first elongated plate 21 is the same as the spacing between the openings 23 in the second elongated plate 22. The spacing between the openings 23 of the first long plate 21 is equal to the width of the top surface of the tread plate frame 1. The purpose that sets up is improving stair overall structure stability, is convenient for install and dismantle and reinforcing aesthetic property. The interval between the open holes 23 is equal to the width of the top surface of the tread plate frame 1, so that the first long plate 21 and the second long plate 22 can be better matched with the tread plate frame 1, and the overall structural stability of the convenient construction stair is improved. Thus, the step plate can be ensured to be more stable when being placed on the frame, and the use safety is improved. When installing and dismantling stairs, the position of the tread plate frame 1 can be adjusted more conveniently, the steps of installing and dismantling can be simplified, and the construction efficiency is improved.

In a preferred embodiment, a first short plate 25 is embedded in one end of the first long plate 21, the outer diameter of the first short plate 25 being equal to the inner diameter of the first long plate 21. The end of the second long plate 22 is embedded with a second short plate 26, the outer diameter of the second short plate 26 being equal to the inner diameter of the second long plate 22. The purpose of the first 25 and second 26 stubs is to be able to add or subtract the same means embedded depending on the vertical height or horizontal width. The two opposite ends of the steel pipe are respectively embedded with the steel pipe, so that when the steel pipe needs to be lengthened, a unit is added to the steel pipe for convenient construction of stairs

In this embodiment, the protective rail 3 further comprises a plurality of upright posts 31 and a cross bar 32, and two ends of the upright posts 31 are respectively connected with the cross bar 32 and the first long plate 21. The purpose of setting up is to improve security, aesthetic property, the stability of stair, provides extra support.

The concrete construction method comprises the following steps:

1. The angle steel is welded into 2 pieces in the shape of inverted 7, the two angle steel pieces in the shape of inverted 7 are welded together by the angle steel, the upper surface is covered with a wood plate to form a unit tread, and holes 23 at two ends are used for inserting bolts 4.

2. The rectangular steel through is respectively provided with the holes 23, one side of the end part is embedded with a section of steel through with the outer diameter equal to the inner diameter of the rectangular steel through, and when the extension is needed, the portable construction running ladder can be inserted for extension.

3. The unit tread plates are respectively connected with rectangular steel with holes by bolts 4.

4. The rectangular steel is welded with angle steel, and the angle steel is respectively perforated 23 with the steel of the vertical rod 31 and is connected with bolts 4 to form the protective railing 3.

The convenient construction stair has the advantages that:

(1) The materials are easy to obtain, the cost is low, the materials can be purchased through markets, and the price is low.

(2) The portable construction running ladder is simple to manufacture, and can be formed by assembling and welding all the components.

(3) The practicability is strong, and the device can be used as a channel with the ground level and the forming angle according to actual needs.

(4) The guard rail 3 is more convenient and safer.

(5) The length can be lengthened or shortened according to actual needs.

(6) Can be used in a turnover way.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the implementation of the utility model is not limited by the above manner, and it is within the scope of the utility model to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted, or without any improvement.

Claims

1. The convenient construction stair is characterized by comprising a tread plate frame and connecting pieces, wherein the connecting pieces are connected with a plurality of tread plate frames, and tread plates are arranged on the tread plate frames;

The connecting piece includes first longeron and second longeron, first longeron with the second longeron is parallel, first longeron with all be provided with a plurality of trompils on the second longeron, a through-hole on the step board frame with the trompil on the first longeron is articulated, another through-hole on the step board frame with the trompil on the second longeron is articulated, when first longeron is certain contained angle with ground, the top surface of step board frame still is in the horizontality.

2. A portable construction stairway according to claim 1, wherein the tread plate frame is welded from angle steel.

3. A portable construction stairway according to claim 2, wherein two angle steels are welded to the tread frame sides, and wherein the tread frame is formed after two angle steels are welded to the tread frame sides.

4. A portable construction stairway according to any one of claims 1 to 3, characterised in that the spacing between the openings in the first elongate plate is the same as the spacing between the openings in the second elongate plate.

5. The portable construction stairway according to claim 4, wherein the spacing between the openings of the first long plates is equal to the width of the tread plate frame top surface.

6. The portable construction stairway according to claim 1, wherein the first long plate and the second long plate are rectangular steel channels.

7. A portable construction stairway according to claim 1 or 6, characterised in that a first short plate is embedded in an end of the first long plate, the outer diameter of the first short plate being equal to the inner diameter of the first long plate.

8. A portable construction stairway according to claim 1 or 6, characterised in that the end of the second long plate is embedded with a second short plate having an outer diameter equal to the inner diameter of the second long plate.

9. A portable construction stairway according to claim 1, wherein the tread plate frame is bolted to the first elongate plate and the tread plate frame is bolted to the second elongate plate.

10. The portable construction stair according to claim 1, further comprising a guard rail, wherein the guard rail comprises a plurality of uprights and a cross bar, and two ends of the uprights are respectively connected with the cross bar and the first long plate.