CN210713772U

CN210713772U - Temporary stair for building site scaffold

Info

Publication number: CN210713772U
Application number: CN201921568306.1U
Authority: CN
Inventors: 肖丽娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-06-09
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a temporary stair for a construction site scaffold, which comprises two stair end frames; each stair end frame comprises two end frame sliding pipes, end frame connecting rods are fixedly connected between the end portions of the two end frame sliding pipes respectively, two pedal mounting rods are hinged between the end frame connecting rods on the corresponding sides of the two stair end frames, a plurality of stair pedals parallel to the stair end frames are sequentially mounted on the four pedal mounting rods, and pedal hinging devices are arranged between the stair pedals and the pedal mounting rods respectively; each of the two end frame sliding pipes of the stair end frame is provided with a width supplementing connecting frame, and the width supplementing connecting frames are respectively provided with a connecting fastener. The utility model discloses four footboard installation pole can with two stair end frame forms parallelogram mechanism, the temporary erection between the adaptable more different difference in height layering, and application scope is wide. When in use, the stair tread is very stable and has high safety. Easy dismounting, simple manufacture.

Description

Temporary stair for building site scaffold

Technical Field

The utility model relates to a scaffold technical field especially relates to a building site is interim stair for scaffold.

Background

The scaffold is the interim auxiliary facilities that building site often erect, not only can provide outer work platform for constructor, can improve work security moreover, and the dust fall falls and makes an uproar etc.. Present building site scaffold frame adopts more steel pipes of arranging vertically and horizontally, through fastener interconnect together and form, its structure should have security, economic nature and easy dismounting nature etc. concurrently.

Wherein, horizontal steel pipe can form a plurality of layers among the building site scaffold to satisfy the operation demand of constructor co-altitude not, often need erect interim stair between the layer, supply personnel current and simple article transport etc.. Current interim stair are mostly the steel pipe and connect with the fastener, perhaps connect and form with other bindings, and this kind of interim stair not only the dismouting is wasted time and energy, and the security is relatively poor moreover. Also have some wholeness structure's temporary stair, adopt the footboard to supply personnel to walk on it, though simplified dismouting work, nevertheless because of the building site scaffold frame of different constructions, its interlayer size and steel pipe are arranged and all are differed, and wholeness temporary stair can not install well by the line, and application scope is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a building site scaffold frame is with interim stair that simple manufacture, application scope is wide, easy dismounting and security are high is provided.

In order to solve the technical problem, the technical scheme of the utility model is that: the temporary stair for the construction site scaffold comprises two stair end frames which are arranged in parallel; each stair end frame comprises two end frame sliding pipes which are arranged oppositely, end frame connecting rods are fixedly connected between the end parts of the two end frame sliding pipes respectively, two parallel pedal mounting rods are hinged between the end frame connecting rods on the corresponding sides of the two stair end frames, a plurality of stair pedals which are arranged in parallel with the stair end frames are sequentially mounted on the four pedal mounting rods, and pedal hinging devices are arranged between the stair pedals and the pedal mounting rods respectively; two width supplementing connecting frames which can be respectively stretched and retracted towards two sides are installed on the two end frame sliding pipes of each stair end frame, and connecting fasteners are respectively arranged on the width supplementing connecting frames.

According to the preferable technical scheme, the width supplementing connecting frame comprises two width supplementing sliding rods which are respectively slidably mounted in the corresponding two end frame sliding pipes, the end parts of the two width supplementing sliding rods are fixedly connected with the width supplementing connecting pipe, and the width supplementing connecting pipe is provided with the connecting fastener.

As the preferred technical scheme, two connecting fasteners are arranged on the width-supplementing connecting pipe.

Preferably, the connecting fastener is a rotating fastener.

As a preferred technical scheme, the stair tread comprises two symmetrically arranged connecting beams, and at least two tread beams are fixedly connected between the two connecting beams.

According to the preferable technical scheme, the pedal hinge device comprises pedal hinge holes which are respectively formed in the pedal mounting rod and the connecting beam, pedal hinge bolts which inwards extend out of the connecting beam are mounted in the pedal hinge holes, and two pedal hinge nuts are mounted at the end parts of the pedal hinge bolts.

As a preferred technical scheme, an end frame reinforcing rod is further fixedly arranged between the two end frame connecting rods of each stair end frame, and the end part of each end frame reinforcing rod is located between the hinged ends of the two corresponding side pedal mounting rods.

By adopting the technical scheme, the temporary stair for the scaffold on the construction site comprises two stair end frames which are arranged in parallel; each stair end frame comprises two end frame sliding pipes which are arranged oppositely, end frame connecting rods are fixedly connected between the end parts of the two end frame sliding pipes respectively, two parallel pedal mounting rods are hinged between the end frame connecting rods on the corresponding sides of the two stair end frames, a plurality of stair pedals which are arranged in parallel with the stair end frames are sequentially mounted on the four pedal mounting rods, and pedal hinging devices are arranged between the stair pedals and the pedal mounting rods respectively; two width supplementing connecting frames which can be respectively stretched and retracted towards two sides are installed on the two end frame sliding pipes of each stair end frame, and connecting fasteners are respectively arranged on the width supplementing connecting frames. The utility model discloses two stair end frames are located two upper and lower layering departments of building site scaffold frame, four respectively the footboard installation pole is articulated, can with two the stair end frame forms parallelogram mechanism, parallelogram mechanism's change, the temporary erection between the adaptable more different difference in height layering, and application scope is wide. During the use, will mend wide link and take out until making it on connecting fastener can detain on the horizontal steel pipe of building site scaffold to carry out the lock joint to four benefit wide links in proper order and fix, two stair end framves realize fixing thereupon, and the stair tread not only can keep constantly parallel with stair end frame, still because of the fixed very stable of stair end frame, the security is high. The temporary building and dismantling can be realized only by carrying out the dismantling and assembling of a plurality of connecting fasteners, and the dismantling and assembling is convenient. The whole structure is not complex, and the manufacture is simple.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is an enlarged schematic view of the structure at I in FIG. 1;

fig. 3 is a schematic front view of an embodiment of the present invention;

FIG. 4 is an enlarged schematic view of the A-A structure of FIG. 3;

fig. 5 is an enlarged schematic view of the B-B structure of fig. 3.

In the figure: 1-construction site scaffold; 11-a horizontal steel pipe; 2-stair end frame; 21-end frame sliding pipe; 22-end frame link; 23-end frame stiffener; 3-a pedal mounting rod; 4-stair treads; 41-connecting beam; 42-tread beam; 43-pedal hinge bolt; 44-pedal hinge nut; 5-width supplementing connecting frames; 51-width compensation sliding rods; 52-width supplementing connecting pipes; 6-connecting fastener.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, exemplary embodiments of the invention are described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1 to 5, the temporary staircase for the scaffold on the construction site comprises two staircase end frames 2 arranged in parallel, wherein the two staircase end frames 2 are respectively used as a top frame and a bottom frame and are respectively positioned at the transverse steel pipes 11 on the upper layer and the lower layer of the scaffold on the construction site 1.

As shown in fig. 2 and 4, each of the stair end frames 2 includes two end frame sliding tubes 21 disposed opposite to each other, and end frame connecting rods 22 are respectively and fixedly connected between end portions of the two end frame sliding tubes 21, so that the two end frame sliding tubes 21 and the two end frame connecting rods 22 form a rectangular frame structure, and the parallel of the two stair end frames 2 is the parallel of the two rectangular frames. The end frame connecting rod 22 can be made of various section bars such as angle steel, square steel, round tubes and the like, and is fixedly connected and preferably welded.

As shown in fig. 1 and 3, two parallel pedal mounting rods 3 are hinged between the end frame connecting rods 22 on the corresponding sides of the two stair end frames 2, and the hinged connection at the position adopts a structure that two mounting rod hinged nuts are mounted on mounting rod hinged bolts, so that the two nuts can be stably formed after being screwed closely to prevent falling. Preferably, four of the pedal mounting rods 3 are identical in length and are arranged in a rectangular shape. The pedal mounting rod 3 can be made of aluminum profiles or steel profiles and the like. Through above-mentioned structure, every side is two footboard installation pole 3 and two stair end frame 2 can form parallelogram mechanism, and the change of this parallelogram mechanism can form two the change of different distances between stair end frame 2 to can conveniently adapt to the not co-altitude between the building site scaffold 1 layering, application scope is wider.

As shown in fig. 1 and 3, a plurality of stair treads 4 arranged in parallel with the stair end frame 2 are sequentially installed on the four stair tread installation rods 3, and a stair tread hinge device is respectively arranged between each stair tread 4 and each stair tread installation rod 3. In this way two adjacent stair treads 4 form a small parallelogram mechanism with the two tread mounting bars 3 on each side, which parallelogram mechanism can be changed following the parallelogram mechanism formed by the two tread mounting bars 3 on each side and the two stair end frames 2, so that each stair tread 4 can be kept parallel to the stair end frame 2 at any moment.

As shown in fig. 1, fig. 2 and fig. 5, the stair tread 4 of the present embodiment includes two connecting beams 41 symmetrically disposed, and at least two tread beams 42 are fixedly connected between the two connecting beams 41. In this embodiment, the connecting beam 41 and the stepping beam 42 may be made of aluminum or steel. The pedal hinge device comprises pedal hinge holes which are respectively arranged on the pedal mounting rod 3 and the connecting beam 41, pedal hinge bolts 43 which extend out of the connecting beam 41 inwards are arranged in the pedal hinge holes, and two pedal hinge nuts 44 are arranged at the end parts of the pedal hinge bolts 43.

As shown in fig. 2 and 4, two width-supplementing connecting frames 5 which can be respectively extended and retracted towards two sides are installed on the two end frame sliding pipes 21 of each stair end frame 2, and connecting fasteners 6 are respectively arranged on the width-supplementing connecting frames 5. In view of the differences in the structural form of the different site scaffolds 1 and the type and connection manner of the steel pipes used, the stair end frames 2 are not easily connected directly to the site scaffolds 1. This embodiment increases mend wide link 5, conduct the intermediate structure that stair end frame 2 and building site scaffold 1 are connected can obviously improve this embodiment to the suitability of different building site scaffolds 1.

In this embodiment, the width-compensating connecting frame 5 includes two width-compensating sliding rods 51 slidably mounted in the corresponding two end frame sliding tubes 21, two width-compensating connecting tubes 52 fixedly connected to the end portions of the width-compensating sliding rods 51, and the width-compensating connecting tubes 52 are provided with the connecting fasteners 6. The width-supplementing connecting frame 5 can be drawn out from the end frame slide pipe 21 by manually drawing.

In this embodiment, the connecting fastener 6 is a structure for fixing the width-complementing connecting pipe 52 on the horizontal steel pipe 11 of the scaffold 1, preferably, the connecting fastener 6 is a rotary fastener, and the rotary fastener is a commonly-known technique for connecting pipes and facilitating disassembly and assembly in the field, and detailed description thereof is omitted and specific structures are not illustrated in detail in the drawings. When four of the width-complementing connecting pipes 52 are fixed, two of the stair end frames 2 can also be fixed. The personnel are in when walking on stair tread 4, the off-loading appears because of the different orientation of trampling easily in parallelogram mechanism, and then stair tread 4 takes place to rock easily, influences stability, and this embodiment should be at least one set up two on the benefit width connecting pipe 52 connect fastener 6, two connect fastener 6 can with it is fixed firm to mend width connecting pipe 52, and parallelogram mechanism is also non-deformable just, stair tread 4 is also more stable. Preferably, two connecting fasteners 6 are provided on each width-complementing connecting tube 52.

In this embodiment, an end frame reinforcing rod 23 is further fixedly arranged between the two end frame connecting rods 22 of each stair end frame 2, and the end part of the end frame reinforcing rod 23 is located between the hinged ends of the two corresponding side pedal mounting rods 3. Whole like this stair end frame 2 not only structural strength is higher, but also can regard as trampling the structure, avoids trampling empty danger.

In use, the present embodiment is positioned substantially at the site scaffold 1, the upper stair end frame 2 is placed on the upper horizontal steel tube 11, and the lower stair end frame 2 is placed on the lower horizontal steel tube 11. And (3) drawing out the two width-supplementing connecting frames 5 on each stair end frame 2, and enabling the width-supplementing connecting pipes 52 to be close to the transverse steel pipes 11 on the corresponding sides. The operation can be carried out by two persons at the same time or by one person in sequence. The upper width-compensating connection pipe 52 is preferably located below the corresponding lateral transverse steel pipe 11, and the lower width-compensating connection pipe 52 may be located below the corresponding lateral transverse steel pipe 11 or above the corresponding lateral transverse steel pipe 11. The connecting fastener 6 on each width complementing connecting pipe 52 is fixedly connected with the corresponding lateral steel pipe 11, so that the two stair end frames 2 can be stably fixed, namely two opposite sides of the parallelogram mechanism are fixed, and the parallelogram mechanism naturally forms stability and no deformation; the stair treads 4 can be kept parallel to the stair end frames 2, and are stable due to the fact that the parallelogram mechanisms are not prone to deformation, and the treading safety is high. When the connecting frame is disassembled, only eight connecting fasteners 6 need to be disassembled and then four width-supplementing connecting frames 5 are pushed back, and when the connecting frame is folded, one of the connecting fasteners 6 on each width-supplementing connecting pipe 52 can be simply buckled on the corresponding side of the end frame connecting rod 22, so that the width-supplementing connecting frames 5 are prevented from sliding out automatically.

This embodiment two stair end frame 2 with footboard installation pole 3 forms parallelogram mechanism, and the change of parallelogram mechanism is adaptable to the interim of building between the many different difference in height layering, and application scope is wide. During the use, connect fastener 6 to detain on building site scaffold frame 1's horizontal steel pipe 11, four benefit wide link 5 can make two stair end frames 2 realize fixing, parallelogram mechanism non-deformable, and stair tread 4 not only can keep constantly being parallel with stair end frame 2, still because of the fixed very stable of stair end frame 2, the security is high. The temporary building and dismantling of the embodiment only needs to carry out the assembly and disassembly of the eight connecting fasteners 6, and the disassembly and the assembly are convenient. The whole body of the embodiment has no complex structure and is simple to manufacture.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Building site is interim stair for scaffold frame, its characterized in that: comprises two stair end frames which are arranged in parallel; each stair end frame comprises two end frame sliding pipes which are arranged oppositely, end frame connecting rods are fixedly connected between the end parts of the two end frame sliding pipes respectively, two parallel pedal mounting rods are hinged between the end frame connecting rods on the corresponding sides of the two stair end frames, a plurality of stair pedals which are arranged in parallel with the stair end frames are sequentially mounted on the four pedal mounting rods, and pedal hinging devices are arranged between the stair pedals and the pedal mounting rods respectively; two width supplementing connecting frames which can be respectively stretched and retracted towards two sides are installed on the two end frame sliding pipes of each stair end frame, and connecting fasteners are respectively arranged on the width supplementing connecting frames.

2. The temporary staircase for the scaffold at the construction site according to claim 1, wherein: the width supplementing connecting frame comprises two width supplementing sliding rods which are respectively slidably mounted in the corresponding two end frame sliding pipes, the two end parts of the width supplementing sliding rods are fixedly connected with a width supplementing connecting pipe, and the width supplementing connecting pipe is provided with a connecting fastener.

3. The temporary staircase for the scaffold at the construction site according to claim 2, wherein: the width supplementing connecting pipe is provided with two connecting fasteners.

4. The temporary staircase for the scaffold at the construction site according to claim 1, wherein: the connecting fastener is a rotating fastener.

5. The temporary staircase for the scaffold at the construction site according to claim 1, wherein: the stair tread comprises two symmetrically arranged connecting beams, and at least two tread beams are fixedly connected between the two connecting beams.

6. The temporary staircase for the scaffold at the construction site according to claim 5, wherein: the pedal hinge device comprises pedal mounting rods and pedal hinge holes in the connecting beam, pedal hinge bolts extending inwards out of the connecting beam are mounted in the pedal hinge holes, and two pedal hinge nuts are mounted at the end parts of the pedal hinge bolts.

7. A temporary staircase for scaffolding on a construction site as claimed in any one of claims 1 to 6, wherein: every two of stair end frame still fixedly be equipped with the end frame stiffener between the end frame connecting rod, the tip of end frame stiffener is located and corresponds the side two between the articulated end of footboard installation pole.