CN210659389U

CN210659389U - Foundation pit safety stair

Info

Publication number: CN210659389U
Application number: CN201921330951.XU
Authority: CN
Inventors: 张闯; 郑守平; 陈稳德; 彭建良; 吉登松; 邓志峰; 邓锋; 李�杰; 赖宛君; 胡丛珊
Original assignee: Guangdong Yunzhu Technology Co Ltd; Zhongtian Huanan Construction Investment Group Co ltd
Current assignee: Guangdong Yunzhu Technology Co Ltd; Zhongtian Huanan Construction Investment Group Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-02
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a foundation pit safety stair, which is characterized in that two groups of supporting mechanisms are arranged, and the top ends of the two groups of supporting mechanisms are connected through a steel wire mesh, so that the top end of the safety stair can be shielded, and further, a heavy object can be prevented from falling down from the top end, and workers in the foundation pit can be easily injured; the supporting mechanism is internally provided with a plurality of supporting tables along the vertical direction, and the adjacent supporting tables are connected through the telescopic frame, so that the outer sides of the supporting tables are shielded, and the walking safety of workers on the supporting tables can be improved; through setting the stair body to liftable state, can install the both ends of stair body respectively on the brace table in two supporting mechanism earlier, then set up pneumatic cylinder and cylinder again, can drive brace table rebound through pneumatic cylinder work, through cylinder work, drive the connecting plate and move down to the brace table to be connected through the bolt, can play the supporting role through cylinder and pneumatic cylinder.

Description

Foundation pit safety stair

Technical Field

The utility model relates to a stair specifically are foundation ditch safety stair.

Background

The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, an excavation scheme is determined according to geological and hydrological data and the conditions of buildings nearby the site, and waterproof drainage work is performed. The person who is not excavated can use the method of putting the side slope to stabilize the earth slope, and the size of the slope is determined according to the relevant construction regulations. When a deeper foundation pit and a building adjacent to the deeper foundation pit are excavated, a foundation pit wall supporting method, a concrete-sprayed wall protecting method and a large foundation pit are used, and even an underground continuous wall and a columnar column type bored pile are used for interlocking, so that an outer soil layer is prevented from collapsing; for those who have no influence on nearby buildings, the underground water level can be reduced by a well point method, and slope releasing open cut is adopted; in cold regions, natural cold freezing method can be adopted for excavation and the like.

Due to the fact that the depth of the foundation pit is deep, the foundation pit needs to be entered through stairs when the foundation pit is required to be lowered into the pit. The traditional foundation pit generally goes up to the ground and adopts the stair that the steel pipe was set up, does not have any other protection, adopts design protection stair now, and the periphery is stereotyped and is made, adopts the angle steel to enclose, and there is enclosure on the upper portion too, can effectively avoid the strike or the injury that lead to because the high altitude falls the thing in the passageway from top to bottom.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a foundation ditch safety stair to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a foundation ditch safety stair, includes the stair body of connecting between the supporting mechanism of two sets of symmetries and two sets of supporting mechanism, and this supporting mechanism all includes the brace table that a plurality of set up along vertical direction, all is connected through a pneumatic cylinder and four cylinders between the adjacent brace table, the pneumatic cylinder is installed in the centre of the up end of the brace table that is located the below, and four cylinders are installed respectively in the four corners department of the lower terminal surface of the brace table that is located the top, the end of the piston rod of pneumatic cylinder is fixed at the lower terminal surface of the brace table that is located its top, the end of the piston rod of cylinder all is fixed with the connecting plate, and all connecting plates all install the up end at the brace.

As a further aspect of the present invention: the stair body is a lifting stair, the stair body comprises a first fixing plate and a second fixing plate, fixing columns are symmetrically fixed on the upper end faces of the first fixing plate and the second fixing plate, two first connecting rods are movably connected between the corresponding fixing columns on the first fixing plate and the second fixing plate, the two first connecting rods are respectively arranged at the upper end and the lower end of each fixing column, a plurality of second connecting rods are movably connected between the two first connecting rods on the same side at equal intervals, and a plurality of pedals are connected between the first connecting rods at the bottom ends of the two sides at equal intervals; the first fixing plate and the second fixing plate are respectively installed on the supporting tables of the two groups of supporting mechanisms through bolts.

As a further aspect of the present invention: the first fixing plate, the second fixing plate and the pedal are all made of patterned steel plates; the first connecting rod and the second connecting rod are both made of 10# channel steel.

As a further aspect of the present invention: the supporting platforms on the top ends of the two groups of supporting mechanisms are connected through a steel wire mesh.

As a further aspect of the present invention: the outer walls of the adjacent supporting platforms in the same group of supporting mechanisms are connected through the telescopic frames.

Compared with the prior art, the beneficial effects of the utility model are that:

1. by arranging the two groups of supporting mechanisms and connecting the top ends of the two groups of supporting mechanisms through the steel wire meshes, the top ends of the safety stairs can be shielded, so that heavy objects can be prevented from falling from the top ends, and workers in a foundation pit can be easily injured;

2. the supporting mechanism is internally provided with a plurality of supporting tables along the vertical direction, and the adjacent supporting tables are connected through the telescopic frame, so that the outer sides of the supporting tables are shielded, and the walking safety of workers on the supporting tables can be improved;

3. through setting the stair body to the liftable state, can install the both ends of stair body respectively on the brace table in two supporting mechanism earlier, then set up pneumatic cylinder and cylinder again, can drive brace table rebound through pneumatic cylinder work, through cylinder work, drive the connecting plate and move down to the brace table to be connected through the bolt, can play the supporting role through cylinder and pneumatic cylinder, and then can make brace table fixed stable, simultaneously, this foundation ditch safety stair's installation is also comparatively convenient.

Drawings

Fig. 1 is the utility model relates to a whole structure chart of foundation ditch safety stair.

Fig. 2 is the utility model relates to a main view of foundation ditch safety stair's stair body installation.

Fig. 3 is the utility model relates to a foundation ditch safety stair's expansion bracket's structure diagram.

Fig. 4 is the utility model relates to a structure diagram of foundation ditch safety stair's stair body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, in the embodiment of the present invention, a foundation pit safety staircase, includes two sets of symmetrical support mechanisms and a staircase body 4 connected between the two sets of support mechanisms, the support mechanisms include a plurality of support tables 1 arranged along the vertical direction, adjacent support tables 1 are connected with each other through a hydraulic cylinder 2 and four cylinders 3, the hydraulic cylinder 2 is installed in the middle of the upper end surface of the support table 1 located below, the four cylinders 3 are respectively installed at the four corners of the lower end surface of the support table 1 located above, the end of the piston rod of the hydraulic cylinder 2 is fixed on the lower end surface of the support table 1 located above, the end of the piston rod of the cylinder 3 is fixed with a connecting plate 5, all connecting plates 5 are installed on the upper end surface of the support table 1 located below through bolts; can be through

pneumatic cylinder

2 and 3 work of pneumatic cylinder, drive the brace table 1 of top and rise, and then change the distance between two brace tables 1 to can set up brace table 1 in the foundation ditch through this kind of mode, make this kind of mounting means comparatively simple, still make things convenient for going on of follow-up dismantlement work, in addition,

pneumatic cylinder

2 and 3's setting can stabilize brace table 1, and then make the device's installation comparatively firm, make things convenient for the staff to use.

Referring to fig. 1 and 4, the stair body 4 is a lifting stair, the stair body 4 comprises a first fixing plate 8 and a second fixing plate 9, fixing posts 10 are symmetrically fixed on the upper end surfaces of the first fixing plate 8 and the second fixing plate 9, two first connecting rods 11 are movably connected between the corresponding fixing posts 10 on the first fixing plate 8 and the second fixing plate 9, the two first connecting rods 11 are respectively arranged at the upper end and the lower end of the fixing posts 10, a plurality of second connecting rods 12 are movably connected between the two first connecting rods 11 on the same side at equal intervals, and a plurality of pedals 13 are connected between the first connecting rods 11 at the bottom ends of the two sides at equal intervals; the first fixing plate 8 and the second fixing plate 9 are respectively installed on the supporting tables 1 of the two groups of supporting mechanisms through bolts; the first fixing plate 8, the second fixing plate 9 and the pedal 13 are all made of patterned steel plates; the first connecting rod 11 and the second connecting rod 12 are both made of 10# channel steel; can install a fixed plate 8 and No. two fixed plates 9 of stair body 4 respectively on brace table 1 in two supporting mechanism, then through

pneumatic cylinder

2 and 3 work of pneumatic cylinder, change two height that brace table 1 to can extend stair body 4, and then make things convenient for the staff to use this stair body 4 to enter into the bottom of foundation ditch.

Referring to fig. 1 and 3, the supporting platforms 1 at the top ends of the two sets of supporting mechanisms are connected through a steel wire mesh 6; the outer walls of adjacent supporting platforms 1 in the same group of supporting mechanisms are connected through a telescopic frame 7; can all shelter from this supporting mechanism's the outside to can increase this supporting mechanism's security performance, and then can increase staff's work safety.

The working principle is as follows: firstly, a support table 1 at the bottom end of a support mechanism is arranged at the bottom end of a foundation pit, a first fixing plate 8 and a second fixing plate 9 of a stair body 4 are respectively arranged on the support tables 1 which are staggered in the two support mechanisms, then a hydraulic cylinder 2 and an air cylinder 3 are opened, the hydraulic cylinder 2 works to drive the support table 1 at the top end to ascend, the air cylinder 3 works to drive a connecting plate 5 to move downwards, the connecting plate 5 is arranged on the support tables 1 through bolts, the air cylinder 3 plays a supporting role, the stair body 4 can be driven to extend, meanwhile, when the support tables 1 ascend, a telescopic frame 7 can be driven to extend, the outer sides of the support tables 1 can be shielded, and further, the safety of workers walking on the support tables 1 can be improved; the supporting table 1 on the top end of the supporting mechanism is connected through the steel wire mesh 6, the steel wire mesh 6 can be used for shielding the top end of the stair body 4, and therefore when workers walk on the stair body 4, the steel wire mesh can protect the workers.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a foundation ditch safety stair, includes stair body (4) of connecting between the supporting mechanism of two sets of symmetries and two sets of supporting mechanism, its characterized in that: this supporting mechanism all includes brace table (1) that a plurality of set up along vertical direction, all is connected through a pneumatic cylinder (2) and four cylinders (3) between adjacent brace table (1), pneumatic cylinder (2) are installed in the centre of the up end of brace table (1) that is located the below, and four cylinders (3) are installed respectively in the four corners department of the lower terminal surface of brace table (1) that is located the top, the terminal of the piston rod of pneumatic cylinder (2) is fixed at the lower terminal surface of brace table (1) that is located its top, the end of the piston rod of cylinder (3) all is fixed with connecting plate (5), and all connecting plate (5) are all installed at the up end of brace table (1) that is located the below through the bolt.

2. A foundation pit safety staircase according to claim 1, characterized in that: the stair body (4) is a lifting stair, the stair body (4) comprises a first fixing plate (8) and a second fixing plate (9), fixing columns (10) are symmetrically fixed on the upper end faces of the first fixing plate (8) and the second fixing plate (9), two first connecting rods (11) are movably connected between the corresponding fixing columns (10) on the first fixing plate (8) and the second fixing plate (9), the two first connecting rods (11) are respectively arranged at the upper end and the lower end of each fixing column (10), a plurality of second connecting rods (12) are movably connected between the two first connecting rods (11) on the same side at equal intervals, and a plurality of pedals (13) are connected between the first connecting rods (11) on the bottom ends of the two sides at equal intervals; the first fixing plate (8) and the second fixing plate (9) are respectively installed on the supporting tables (1) of the two groups of supporting mechanisms through bolts.

3. A foundation pit safety staircase according to claim 2, characterized in that: the first fixing plate (8), the second fixing plate (9) and the pedal (13) are all made of patterned steel plates; the first connecting rod (11) and the second connecting rod (12) are both made of 10# channel steel.

4. A foundation pit safety staircase according to claim 1, characterized in that: the supporting tables (1) on the top ends of the two groups of supporting mechanisms are connected through a steel wire mesh (6).

5. A foundation pit safety staircase according to claim 1, characterized in that: the outer walls of the adjacent supporting platforms (1) in the same group of supporting mechanisms are connected through a telescopic frame (7).