CN216380733U

CN216380733U - Telescopic stair

Info

Publication number: CN216380733U
Application number: CN202122952923.5U
Authority: CN
Inventors: 段异武; 付占春; 闫飞飞
Original assignee: China Second Metallurgy Group Co Ltd
Current assignee: China Second Metallurgy Group Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-26
Anticipated expiration: 2031-11-29

Abstract

The utility model provides a telescopic stair, which comprises: the device comprises a vertical supporting piece, a transverse supporting piece and a telescopic connecting piece; the horizontal supporting piece is arranged between the two vertical supporting rods, and the two ends of the horizontal supporting piece are respectively connected with the two vertical supporting rods to form at least two plane supporting frameworks; telescopic connecting pieces are arranged between the two transverse supporting pieces in an extending way at least at the two ends of the transverse supporting pieces, and the telescopic connecting pieces are arranged between the vertical supporting rods correspondingly arranged in the two plane supporting frameworks in an extending way; a plurality of pedals which are arranged side by side are arranged between the two telescopic connecting pieces which are positioned at the two ends of the transverse supporting piece along the length direction of the telescopic connecting pieces. The telescopic connecting piece can realize the length adjustment so as to realize the length adjustment of the stairs, and can directly walk to the construction position on the telescopic stairs for construction, thereby shortening the time of entering a foundation pit by project personnel through the telescopic stairs, improving the construction efficiency, saving the cost and ensuring the construction safety and efficiency.

Description

Telescopic stair

Technical Field

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

Background

At present, in the construction of various pipe galleries, box culverts and cable trench projects, more underground structural projects are involved, the construction is carried out on simple on-site stairs, and the defects of potential safety hazards, non-standard erection, low turnover efficiency, unsafe passing of construction personnel and the like exist; simultaneously, simple and easy stair are fixed structure, can't adjust for climbing or walking length can't directly target in place when inconsistent, make the efficiency of construction low.

Disclosure of Invention

In view of this, the utility model provides a telescopic stair, and aims to solve the problem that the existing stair is simple and low in construction efficiency.

The utility model provides a telescopic stair, which comprises: the device comprises a plurality of vertical supporting pieces, a plurality of transverse supporting pieces and a plurality of telescopic connecting pieces; the two vertical supporting rods are arranged side by side at intervals, one transverse supporting piece is arranged between the two vertical supporting rods, two ends of the transverse supporting piece are respectively connected with the bottom ends of the two vertical supporting rods, at least two plane supporting frameworks are formed in a conformal mode, the plane supporting frameworks are arranged side by side at intervals, and the vertical supporting rods of the plane supporting frameworks are arranged in a one-to-one correspondence mode; telescopic connecting pieces extend at least at two ends of each transverse supporting piece between two transverse supporting pieces in two plane supporting frameworks on two sides, telescopic connecting pieces extend between vertical supporting rods correspondingly arranged in the two plane supporting frameworks on the two sides, each telescopic connecting piece extends along the arrangement direction of the telescopic stairway, a stairway framework is formed between each plane supporting framework and each telescopic connecting piece, and the telescopic connecting pieces serve as pedal supporting pieces; and a plurality of pedals arranged side by side are arranged between the two telescopic connecting pieces at the two ends of the transverse supporting piece along the length direction of the telescopic connecting pieces.

Furthermore, according to the telescopic stair, the two vertical support rods which are positioned on the two sides and correspondingly arranged in the plane support frameworks are provided with the foot blocking plates at the bottom, and the protective net is arranged at the top.

Further, in the telescopic stairway, the foot blocking plate is a galvanized iron sheet foot blocking plate, and the protective net is a steel wire mesh.

Further, according to the telescopic stair, the pedal is connected with the telescopic connecting piece through the buckle.

Furthermore, according to the telescopic stair, the two ends of the foot blocking plate are detachably connected with the vertical supporting rods through the bolts.

Further, above-mentioned telescopic type stair, telescopic connector includes: a fixed section and at least one sliding section; the first-stage sliding section is sleeved in the fixed section and slides relative to the fixed section through adjustment, and any two adjacent sliding sections are connected in a sliding manner.

Furthermore, according to the telescopic stair, the telescopic connecting piece is rotatably connected with the plane supporting framework and used for adjusting the extending angle of the telescopic connecting piece so as to adjust the climbing angle of the telescopic stair.

Further, according to the telescopic stair, the pedals arranged on the telescopic connecting pieces are rotatably connected with the telescopic connecting pieces so as to adjust the supporting direction of the pedals.

Further, in the telescopic stair, the pedals are steel grids.

Further, according to the telescopic type staircase, the vertical supporting pieces, the transverse supporting pieces and/or the telescopic connecting pieces are tubular structures.

The telescopic stair provided by the utility model is extended along the arrangement direction of the telescopic stair through the telescopic connecting pieces arranged between the plane support frameworks to be used as a pedal support piece for supporting the pedal; this telescopic connection spare is flexible adjustable, can realize the regulation of length, so as to realize the regulation of stair length, for example, can carry out the walking of horizontal direction in the foundation ditch, or direction of height's climbing, telescopic length's regulation, can make its and foundation ditch length or width looks adaptation, so that direct walking to the construction position on this telescopic stair is under construction and can more effectual solution these problems, shorten project personnel and pass through telescopic stair entering foundation ditch time, the construction efficiency is improved, the cost is saved, ensure construction safety and efficiency, and simultaneously, this telescopic stair assembly and disassembly is swift.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a telescopic stair according to an embodiment of the present invention;

fig. 2 is a sectional view of a telescopic stair according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a telescopic connection component according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a vertical support provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a lateral support according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a pedal according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a toe board according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a protection net according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 2, a preferred structure of the telescopic stairway provided by the embodiment of the utility model is shown. As shown in the figures, the telescopic stairway comprises: a plurality of vertical supporting pieces 1, a plurality of transverse supporting pieces 2 and a plurality of telescopic connecting pieces 3; wherein;

two vertical support rods 1 are arranged side by side at intervals, one transverse support member 2 is arranged between the two vertical support rods 1, two ends (the left end and the right end as shown in fig. 2) are respectively connected with the bottom ends of the two vertical support rods 1, at least two plane support frameworks 10 are formed in a conformal mode, the plane support frameworks 10 are arranged side by side at intervals, and the vertical support rods 1 of the plane support frameworks 10 are arranged in a one-to-one mode. Specifically, as shown in fig. 1, two planar supporting frameworks 10 are taken as an example for description in the present embodiment, but other numbers are also possible, and no description is made in the present embodiment. The two vertical supporting rods 1 and the transverse supporting piece 2 are assembled into a plane supporting framework 10 in a U-shaped structure, and the two plane supporting frameworks 10 on the two sides serve as main supports.

Telescopic connecting pieces 3 are arranged between two transverse supporting pieces 2 in two plane supporting frameworks 10 on two sides in an extending way at least at two ends of the transverse supporting pieces 2, the telescopic connecting pieces 3 are arranged between vertical supporting rods 1 correspondingly arranged in the two plane supporting frameworks 10 on two sides in an extending way, each telescopic connecting piece 3 is arranged in an extending way along the arrangement direction of a telescopic stair (horizontally arranged as shown in figure 1), a stair framework is formed between each plane supporting framework 10 and each telescopic connecting piece 3, and the telescopic connecting pieces 3 are used as pedal supporting pieces; between the two telescopic links 3 at both ends of the transverse support 2, along its length (horizontally as shown in fig. 1), there are several pedals 4 arranged side by side. In particular, in fig. 1, the pedal 4 is monolithic, and in fact not monolithic. As shown in fig. 2, the number of the telescopic connecting members 3 may be seven, and the telescopic connecting members are respectively arranged from the left upper end position at the top end of the left vertical supporting rod 1, the middle position of the left vertical supporting rod 1, the bottom end of the left vertical supporting rod 1, i.e., the joint between the left vertical supporting rod 1 and the transverse supporting member 2, the middle position of the transverse supporting member 2, the right end of the transverse supporting member 2, i.e., the joint between the transverse supporting member 2 and the right vertical supporting rod 1, the middle position of the right vertical supporting rod 1, and the top end of the right vertical supporting rod 1, so as to realize the connection between corresponding parts of the two planar supporting frameworks 10.

For convenience of adjustment, preferably, the telescopic connecting member 3 is rotatably connected with the plane supporting framework 10, and is used for adjusting the extending angle of the telescopic connecting member 3, namely the included angle between the plane supporting framework 10 and the telescopic connecting member 3, and the plane supporting framework 10 can adjust the extending direction of the telescopic connecting member 3 on a vertical plane, so as to adjust the climbing angle of the telescopic stair 3. In this embodiment, the plane support frame 10 and the telescopic connecting member 3 are perpendicular to each other, that is, the telescopic connecting member 3 is disposed horizontally, so that the pedals 4 are all disposed on the same horizontal plane, and certainly, the telescopic connecting member 3 may be disposed obliquely, so that the pedals 4 are disposed on different horizontal planes, thereby forming a multi-layer step plate. Wherein, the pedals 4 and the telescopic connecting piece 3 can also be connected in a rotating way so as to adjust each pedal 4 to the horizontal plane. In this embodiment, the pedal 4 is a steel grid, which may be nine pieces or may be other number, and this embodiment is not limited to this. In this embodiment, as shown in fig. 6, two ends of the pedal 4 are provided with buckles 7 for connecting the telescopic connecting member 3, and the two ends can be connected by other methods.

A foot baffle plate 5 is arranged at the bottom between the vertical support rods 1 correspondingly arranged in the two plane support frameworks 10 at the two sides, and a protective net 6 is arranged at the top. Specifically, the foot blocking plate 5 is made of galvanized iron, and the protective net 6 is made of a steel wire mesh. As shown in fig. 8, two ends of the foot blocking plate 5 are provided with bolts 51; as shown in fig. 4, a pin hole 11 is formed at the bottom of the vertical support rod 1 to detachably connect the vertical support rod 1 and the foot blocking plate 5, so that the foot blocking plate 5 with a matched length can be replaced during telescopic adjustment, and the disassembly and assembly can be facilitated; of course, the detachable connection may also be realized by other manners, and is not limited in this embodiment. The two ends of the protective net 6 can also be provided with buckles 7 for connecting the telescopic connecting pieces 3, and can also be connected in other modes.

In the present embodiment, the telescopic connecting member 3 is of a telescopic structure, and in order to adjust the telescopic length, the telescopic connecting member 3 and the pedal 4 are preferably detachably connected to each other, so that the telescopic length can be adjusted, and the position of the pedal 4 can be adjusted.

In the present embodiment, the vertical supports 1, the transverse supports 2 and/or the telescopic connectors 3 are tubular structures.

As shown in fig. 3, the telescopic connection 3 may be of a telescopic construction. The telescopic connection 3 comprises: a fixed section 31 and at least one sliding section 32; the sliding sections 32 are disposed on one side (right side as shown in fig. 3) of the fixed section 31, and the first-stage sliding section 32 is sleeved in the fixed section 31 and slides relative to the fixed section 31 by adjustment, so as to adjust the total length of the sliding sections 32 and the fixed section 31. Any two adjacent sliding segments 32 are slidably connected to each other to adjust the overall length of the sliding segments 32. Specifically, to increase the range and stability of length adjustment of the telescopic connection 3, it will be understood by those skilled in the art that the sliding sections 32 may be two or more. All be provided with a plurality of screens holes that correspond the setting on canned paragraph 31 and the slip section 32, canned paragraph 31 and first level slip section 32 establish the piece through the card of wearing to locate the screens hole and are connected, and/or establish the piece through the card of wearing to locate the screens hole between two arbitrary adjacent slip sections 32 and be connected. Wherein, the both ends of the slip end of canned paragraph 31 and slip section 32 all are provided with a plurality of screens hole along its length direction, establish on different screens hole on canned paragraph 31 and the slip section 32 different screens hole through the card between first grade slip section 32 and the canned paragraph 31, so as to adjust the total length of this length adjustment spare 12, of course also adjust through this kind of mode between the slip section 32, also perhaps, the slip end B of canned paragraph 31 is provided with a screens hole, the one end of slip section 32 sets up a screens hole, the other end sets up a plurality of screens holes, the screens hole through canned paragraph 31 slip end and the tip that the slip section 32 was equipped with a plurality of screens holes carry out the alignment in different screens holes, so as to carry out the regulation of length.

In this embodiment, as shown in fig. 3, the telescopic connecting members 3 are telescopic steel tubes, which are used as main frameworks of a telescopic stair, and form a stair framework of the stair together with the vertical supporting members 1 and the horizontal supporting members 2, i.e. a stair frame, and the number of the telescopic connecting members 3 is seven; as shown in fig. 4, the vertical supporting member 1 may be a fixed vertical steel pipe with a diameter of 48.3mm and a wall thickness of 3.6mm, and the vertical supporting member 1 is divided into two sections and eight sections; as shown in fig. 5, the lateral supporting members 2 may be fixed lateral steel pipes with a diameter of 48.3mm and a wall thickness of 3.6mm, and the lateral supporting members 2 are divided into two sections and four sections to form four plane supporting frameworks 10; as shown in fig. 6, the tread 4 is nine steel grids 1050 × 560mm, the model is G255/30/100, and the tread is fixed on the telescopic connecting piece 3 by a buckle and is used as a tread of a telescopic stair; as shown in fig. 7, the foot-blocking plate 5 is a galvanized iron foot-blocking plate 1650x180mm made of galvanized iron sheet with thickness of 0.2mm, and is fixed on the vertical pipe by a fixing bolt to serve as a foot-blocking plate of the staircase; as shown in fig. 8, two protection nets 6 are provided, which are all steel wire meshes 1650x420mm, the model adopts a wire diameter of 2mm, and the mesh 3x3cm is fixed on the vertical support 1 by a buckle, and the protection nets are used as protection railings of a telescopic stair.

In summary, the retractable stair provided in this embodiment is extended along the arrangement direction of the retractable stair through the retractable connecting members 3 disposed between the planar supporting frameworks 10, and serves as a pedal supporting member to support the pedals 4; this telescopic connection spare 3 is flexible adjustable, can realize the regulation of length, so as to realize the regulation of stair length, for example, can carry out the walking of horizontal direction in the foundation ditch, or direction of height's climbing, telescopic length's regulation, can make its and foundation ditch length or width looks adaptation, so that direct walking to the construction position on this telescopic stair is under construction and can more effectual these problems of solution, shorten project personnel and pass through telescopic stair entering foundation ditch time, the construction efficiency is improved, the cost is saved, ensure construction safety and efficiency, and simultaneously, this telescopic stair assembly and disassembly is swift.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A telescopic stair, comprising: the device comprises a plurality of vertical supporting pieces, a plurality of transverse supporting pieces and a plurality of telescopic connecting pieces; wherein the content of the first and second substances,

the two vertical supporting rods are arranged side by side at intervals, one transverse supporting piece is arranged between the two vertical supporting rods, two ends of the transverse supporting piece are respectively connected with the bottom ends of the two vertical supporting rods, at least two plane supporting frameworks are formed in a conformal mode, the plane supporting frameworks are arranged side by side at intervals, and the vertical supporting rods of the plane supporting frameworks are arranged in a one-to-one correspondence mode;

telescopic connecting pieces extend at least at two ends of each transverse supporting piece between two transverse supporting pieces in two plane supporting frameworks on two sides, telescopic connecting pieces extend between vertical supporting rods correspondingly arranged in the two plane supporting frameworks on the two sides, each telescopic connecting piece extends along the arrangement direction of the telescopic stairway, a stairway framework is formed between each plane supporting framework and each telescopic connecting piece, and the telescopic connecting pieces serve as pedal supporting pieces;

and a plurality of pedals arranged side by side are arranged between the two telescopic connecting pieces at the two ends of the transverse supporting piece along the length direction of the telescopic connecting pieces.

2. Telescopic stair according to claim 1,

two vertical support rods which are correspondingly arranged in the plane support frameworks and are positioned at two sides are provided with a foot baffle plate at the bottom and a protective net at the top.

3. Telescopic stair according to claim 2,

the foot blocking plate is made of galvanized iron sheet, and the protective net is made of steel wire mesh.

4. The telescopic stairway as claimed in claim 2, wherein the tread is connected to the telescopic connector by a snap fit.

5. The telescopic stair of claim 2, wherein the two ends of the foot blocking plate are detachably connected with the vertical support rod through bolts.

6. The telescopic stairway as claimed in any one of claims 1 to 5, wherein the telescopic connection comprises: a fixed section and at least one sliding section; wherein the content of the first and second substances,

the first stage sliding section is sleeved in the fixed section and slides relative to the fixed section through adjustment, and any two adjacent sliding sections are connected in a sliding manner.

7. Telescopic stair according to any one of claims 1 to 5,

the telescopic connecting piece is rotatably connected with the plane supporting framework and used for adjusting the extending angle of the telescopic connecting piece so as to adjust the climbing angle of the telescopic stair.

8. Telescopic stair according to claim 7,

the pedal arranged on the telescopic connecting piece is rotatably connected with the telescopic connecting piece so as to adjust the supporting direction of the pedal.

9. A telescopic stair as claimed in any one of claims 1 to 5 wherein the tread is a steel grating.

10. Telescopic stair according to any one of claims 1 to 5,

the vertical support, the transverse support and/or the telescopic connector are tubular structures.