CN109958134A - A kind of suspension type deep basal pit stair activity - Google Patents
A kind of suspension type deep basal pit stair activity Download PDFInfo
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- CN109958134A CN109958134A CN201811380067.7A CN201811380067A CN109958134A CN 109958134 A CN109958134 A CN 109958134A CN 201811380067 A CN201811380067 A CN 201811380067A CN 109958134 A CN109958134 A CN 109958134A
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- pavement
- stair activity
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- gradient
- deep basal
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G27/00—Temporary arrangements for giving access from one level to another for men or vehicles, e.g. steps, ramps
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Steps, Ramps, And Handrails (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of suspension type deep basal pit stair activities, including several first pavements, several second pavements, retractable support portion and several suspension parts.Retractable support portion includes several telescopic rods, first pavement is respectively arranged between two ipsilateral but different axis telescopic rods, second pavement is respectively arranged between two telescopic rods of heteropleural, and the first pavement is rotatablely connected with the second pavement according to the mode of being not substantially parallel with each other.When imposing thrust or pulling force to telescopic rod, the first pavement can change first angle of gradient of the first pavement around the mode that the second pavement rotates；And/or second pavement can change second angle of gradient of the second pavement in a manner of around the rotation of the first pavement；To which stair activity can be installed on the inner space of deep basal pit so that stair activity can allow staff gradually tripping in deep basal pit or gradually to return to earth's surface according to the variation of first angle of gradient and second angle of gradient by way of folding and being perhaps unfolded.
Description
Technical field
The invention belongs to construction engineering technical field, it is related to a kind of construction stair activity more particularly to a kind of suspension type is deep
Foundation pit stair activity.
Background technique
With the continuous propulsion of green construction, safety construction, country is carried out about the hair for reinforcing energy-saving and emission-reduction
Exhibition strategy, builds a resource-conserving society and friendly environment society, the environmentally protective construction of architectural engineering is gradually being promoted.Base
It cheats (foundation pit), is the heatable adobe sleeping platform excavated in basic engineering position by substrate absolute altitude and basic plane size.Building
Foundation pit refers to carry out the below ground space that the construction on building (including structures) basis and basement is excavated.Foundation pit category
In temporary work, effect is to provide the sky for building operation and carrying out according to the specified position of design for enabling basis
Between.According to the Ministry of Construction build No. 200987 texts of matter about print and distribute " the biggish part-to-item project safety management method of risk it is logical
Know " regulation, general deep basal pit refer to cutting depth be more than 5m (containing 5m) or three layers of basement or more (containing three layers) though or depth not
More than 5m, but complex geologic conditions and ambient enviroment and the especially complex engineering of underground utilities.
In modern construction engineering, underground structure can be used as the functional areas such as parking, equipment, people's air defense, traffic and shopping
It uses.With subway construction, urban underground space and high building build paces constantly accelerate, deep-foundation pit engineering just towards " it is close,
It is deep, big " direction develop.Construction of Deep Excavation Engineering is successively to excavate to be done step-by-step with the earthwork, construction period personnel, material
It needs successively to enter underground.It is excavated from top to bottom in Deep Foundation Pit Excavation and structure is from bottom to top in work progress, it is necessary to set up peace
Complete convenient lower channel meets construction requirement.Currently, the tool of foundation pit is mostly steel ladder above and below construction site.This suggestion
Steel ladder be mainly welded by materials such as steel pipe, angle steel.It is primarily present following defect: disassembly process is cumbersome, take a lot of work and
It is bothersome；Without safety device；Low, waste of material of recycling rate of waterused etc..
For above is referred to defect, at present the prior art of deep basal pit stair activity (or lower channel) mainly include
Several parts of patent documents below.
For example, a kind of deep basal pit disclosed in the Chinese patent of Publication No. CN104234447B is hung downstairs with tool-type
Ladder, including ladder, ladder support and stair activity, ladder are made of two groups of ladder units, and peace is arranged between two groups of ladder units
Load onto the gap gone downstairs, every group of ladder unit includes 4 columns, and the cross section of ladder unit is in rectangle, the upper end of column with
Girder steel above it is vertically fixedly connected, and foundation pit bottom surface is vertically stretched in the lower end of column；Ladder support and foundation pit enclosure structure are solid
Fixed connection, ladder support include that 2 or 4 girder steels, girder steel are fixed on the upper surface of building enclosure crown beam；Stair activity from upper and
Under be sequentially arranged between two groups of ladder units, half space is arranged in corner between adjacent stair activity, and half space is solid
It is scheduled on the inner space of ladder unit.Stair activity of the invention has the characteristics that hanging, and stair activity is installed from top to bottom, can
It combines closely completely with the process of base pit engineering；Current convenient for construction personnel, security performance is high, and dismounting speed is fast, and turnover rate is high.
For example, on a kind of deep basal pit hanging-type construction disclosed in the Chinese patent of Publication No. CN106836851A downstairs
Ladder.The construction stair activity be located at twice armored concrete it is horizontally-supported between comprising the first stair activity, on second downstairs
Ladder and third stair activity, and the first stair activity, the second stair activity and third stair activity join end to end, at " Z "
Shape structure.The deep basal pit hanging-type construction stair activity that the invention provides utilizes the armored concrete level branch in deep-foundation pit engineering
Support, stair activity is hung in support, can greatly expand the installation environment of construction stair activity, improves service performance；In addition,
Stair activity can carry out piecewise spreading or dismounting according to engineering progress, meet greatly scarce of place variation between Construction stage of Deep Excavation
Point has good conformability.
For example, a kind of upper and lower pedestrian passage of deep basal pit assembled disclosed in Publication No. CN203755717U, comprising: respectively
Lead to column by four sides and erect the left fixed frame and right fixed frame that are formed by four vertex positions of rectangle, left fixed frame and the right side are solid
Determine frame and be respectively separated in the vertical direction multilayer stair activity platform is distributed with, and left fixed frame stair activity platform and right fixation
Frame stair activity platform is spaced in height to be staggered, stair activity platform side be located on upper one layer of opposite side fixed frame
The stair activity stepped plate that platform of going downstairs is obliquely installed by one is connected, on the stair activity platform other side and next layer downstairs
Terraced platform passes through the stair activity stepped plate being obliquely installed and is connected.Pedestrian passage uses fabricated construction, Fang Tong in the present invention
Column constitutes the two opposite fixed frames in left and right, convenient for assembling stair activity stepped plate, disassembly process between two opposite fixed frames
Simply, saving of labor, save trouble, can repeated disassembled and assembled reuse, waste of material is small, enhances practicability, the safety of upper and lower pedestrian passage
The reusing of property, beauty and material.
For example, people's stair activity in a kind of deep basal pit pin-connected panel disclosed in the Chinese patent of Publication No. CN106677558A
Construction method, solve the problem of that upper people's stair activity is easily installed, dismantles and can be used in turn.Construction procedure includes base
Foundation bolt, shear key are buried in the production of plinth component, supporting member is connect with concrete foundation by foundation bolt, and structure is supported
It is bolted between the column of part, crossbeam；The installation of steel stair activity, terraced beam are bolted with supporting member；Color steel
The installation of canopy guard member, ceiling support square steel tube and supporting member column to weld, and insert formula square steel tube by support and connect ground.This hair
People's stair activity in the bright deep basal pit pin-connected panel, there is scaffolding height to be adjusted, can be used in turn, highly-safe spy
Point, supporting member are connected by screw bolts with basis, steel stair activity, color steel ceiling guard member, realize the assembled peace of each component
Dress, it is easy for installation, construction speed is accelerated, which can be used in turn and save engineering cost.
For example, a kind of Cadge ladder for construction of deep base pit disclosed in the Chinese patent of Publication No. CN201962965U, by multiple
Structure snd size cage ladder merogenesis all the same is successively assemblied to form from bottom to up, and multiple cage ladder merogenesis are laid on same vertical line
And it is fastenedly connected between two neighboring cage ladder merogenesis by fastening connection piece；Cage ladder merogenesis includes cube shaped peripheral bone
Frame, the safeguard structure for being laid in peripheral four side of skeleton and it is mounted on the intraskeletal staircase in periphery；Institute inside multiple cage ladder merogenesis
The staircase of installation is from top to bottom connected to the fold-line-shaped lower channel in one Deep foundation Pit excavation of composition for construction personnel's walking,
The vertical height of the fold-line-shaped lower channel is corresponding with the depth of constructed deep basal pit.Structure of the invention design is reasonable, adds
Work production and it is assembled convenient, the adjustable and safety coefficient of assembled height is high, economical and practical, can solve existing deep basal pit lower channel and deposit
Safety coefficient is lower, foundation pit is inconvenient above and below personnel, staircase occupies the practical problems such as big, the mobile inconvenience of area of base.
For example, the disclosed merogenesis to pass through up and down for deep foundation pit construction of the Chinese patent of Publication No. CN205296892U
Stair activity and lower channel are related to engineering and are related to engineering construction apparatus field, and merogenesis stair activity includes skeleton, and skeleton is frame
Frame structure, the top surface rear end of skeleton are provided with a upper mounting plate, and the bottom surface front end of skeleton is provided with a lower platform, upper mounting plate and lower flat
The side of platform is provided with interconnecting piece, and the other side is provided with current portion, the side of interconnecting piece is provided with one in skeleton and inclines
Oblique stair activity section.Upper and lower row of channels is superimposed up and down by multiple merogenesis stair activities to be assembled, above and below two neighboring merogenesis
The lower platform for the merogenesis stair activity being located above in stair and the upper mounting plate of underlying merogenesis stair activity are overlapped.
Present invention installation, easy removal, structure is beautiful, and can reuse.
For example, a kind of external wall construction disclosed in the Chinese patent of Publication No. CN205116683U is combined with suspension type
Construction platform, including upper ejector pin adjuster, the horizontally-supported steel pipe of construction platform, foot pedal support rod, foot pedal, construction platform longitudinal bracing
Steel pipe, suspension type combination construction platform are mounted on the outside of exterior wall sideline, and the exterior wall cashes outside and passes through fastening with the horizontal drawing bolt
Bolt is fixed, and groove profile shoulder pole steel is provided on the outside of the horizontal drawing bolt, is bolted on the outside of the groove profile shoulder pole steel tiltedly
Pull rod.Invention has the beneficial effects that: have that systematic part is few, installation is simple, convenient for tearing open compared with original technical matters
It unloads, improve installation effectiveness, accelerate speed of application, more safety and reliable in construction usage.The invention can be in factory batch
The operation construction of the mechanical engagements such as tower crane can be used in the multiple circulation Reusability of amount processing, primary production, when in-site installation, real
Existing high-altitude is mounted directly, without doing from ground, eliminates the manually installed labour in a large amount of scenes.
For example, a kind of suspension type stair activity disclosed in the Chinese patent of Publication No. CN202954733U, for hanging
On the outside of bridge frame side, suspension type stair activity includes the first end for walking ladder, step ladder being arranged in for climbing and hangs down with step ladder
Straight is used to hook the hook being fixed in bridge frame side.Step ladder is suspended on by the suspension type stair activity of the invention using hook
On the outside of bridge frame side, so that being not take up the space under bridge when overhauling or repairing bridge, facilitating the passage under bridge；And this makes
With novel suspension type stair activity structure is simple, fabrication and installation and convenient disassembly, a large amount of man power and material can be saved.
For example, stair activity in a kind of suspension type room disclosed in the Chinese patent of Publication No. CN203222949U.The hair
It is bright directly to hang stair activity column plate from roof, the pedestal of stair activity is eliminated, a large amount of material and processing work are saved
It measures, and provides completely new moulding, indoor design is made to have more free space.Adjacent upper pedal and lower pedal it
Between fix and adjust spacing with bolt, bolt reaches always roof, and is fixed on the expansion bolt on roof, this completes
The installation of one step configuration is combined all column plates and is installed according to design model, just completes the assembling of stair activity.
It is layer-by-layer according to the depth of deep basal pit currently as the stair of upper and lower deep basal pit by the investigation discovery to the prior art
, there is following deficiency in this way in installation and non-telescoping: the construction foundation depth of deep basal pit be it is continually changing, work as deep basal pit
Depth be not able to satisfy when being fitted into a section stair activity, need to compensate by peripheral hardware riding track.
Summary of the invention
For the deficiencies of the prior art, the present invention provides a kind of suspension type deep basal pit stair activities, comprising: several first
Pavement and several second pavements constitute several pavement units as staff and provide channel；Retractable support portion defines described
The working space of stair activity and support is provided for first pavement and second pavement；Several suspension parts, are attached to
The retractable support portion, is used to support the stair activity；One end of any suspension part is fixedly installed on the deep basal pit
Foundation, the other end is fixedly installed in the retractable support portion, so that the stair activity can be with the side of suspension
Formula is set to the inner space of the deep basal pit；First pavement is installed on second pavement and is limited by retractable support portion
Inner space, in which: the retractable support portion includes several telescopic rods, first pavement be respectively arranged in it is ipsilateral but
Between two different telescopic rods of axis, second pavement is respectively arranged between two telescopic rods of heteropleural, and described
One pavement is rotatablely connected with second pavement according to the mode of being not substantially parallel with each other；When imposing thrust or drawing to the telescopic rod
When power, first pavement can change first angle of gradient of first pavement around the mode that second pavement rotates；With/
Or second pavement can change second angle of gradient of second pavement in a manner of around first pavement rotation；To
The side that the stair activity can pass through folding or expansion according to the variation of first angle of gradient and second angle of gradient
Formula is installed on the inner space of the deep basal pit, so that the stair activity can allow staff's gradually tripping in deep basal pit
Or gradually return to earth's surface.
According to a kind of preferred embodiment, the deep basal pit depth insufficient for the undermost pavement list
In the case that member is fully deployed, the stair activity can be by dismantling described the in the undermost pavement unit
At least one of one pavement I, the first pavement II, the second pavement I and the second pavement II, so that the stair activity
Meet the depth of the deep basal pit in height；And/or the stair activity can be by shortening at least one described telescopic rod
It will be complete in the form of changing first angle of gradient of first pavement and/or second angle of gradient of change second pavement
The pavement unit being unfolded entirely is adjusted to folded state, so that the stair activity meets the deep basal pit in height
Depth.
It according to a kind of preferred embodiment, is observed in top view direction, first pavement includes setting in parallel
The the first pavement I and the first pavement II set, second pavement include the second pavement I and the second pavement being arranged in parallel
II, the first pavement I, the first pavement II, the second pavement I and the second pavement II define the pavement list
Several pavement units can be arranged according to the depth of the deep basal pit in member, the stair activity；Wherein, described above to go downstairs
For ladder in the case where being fully deployed, first pavement and second pavement are in following state: being observed in side view orientation, institute
State first angle of gradient and first second angle of gradient of pavement II opposite number each other of the first pavement I；It is observed in main view direction, it is described
Second angle of gradient of second pavement I and second angle of gradient of the second pavement II opposite number each other；To the pavement unit
Be can allow staff gradually tripping in deep basal pit or gradually return earth's surface circular passage.
According to a kind of preferred embodiment, the telescopic rod is in the way of hydraulic-driven to first gradient
The height at angle, second angle of gradient and the stair activity adjusts, wherein the liquid of the equal and hydraulic system of each telescopic rod
Pressure oil is provided with electromagnetic flow valve between road；The elongation or shortening amount of the telescopic rod can be by adjusting the electromagnetism
The aperture of flow valve or the mode for adjusting hydraulic pressure are adjusted；First angle of gradient, second angle of gradient and it is described on
Elongation or shortening amount adjustment of the height gone downstairs based on the telescopic rod；Wherein, the both ends of telescopic rod (3a) are stretched short
The side wall of section opens up fuel feed hole and oil outlet；The fuel feed hole and the oil outlet connect with the seal for pipe joints in hydraulic circuit
It connects.
It between two adjacent telescopic rods is attached by dismountable mode according to a kind of preferred embodiment
, in order in the case where the depth of the deep basal pit is fully deployed insufficient for the undermost pavement unit,
The undermost pavement unit is dismantled；Wherein, the equal integral type in the both ends of the telescopic rod be provided with it is several with
The fixed plate of the matched threaded hole of stud, it is described adjacent described when the stud screws in two adjacent fixed plates
Telescopic rod removably connects.
According to a kind of preferred embodiment, suspension part includes at least the first suspension strut portion and the second suspension strut portion；
The one end in the one end in the first suspension strut portion and the second suspension strut portion passes through the foundation bolt and base for being embedded in foundation in advance
Plinth part is fixedly connected；The other end in the first suspension strut portion and the other end in the second suspension strut portion by setting in a position-stable manner
The bolt being placed on retractable support portion backing plate is fixedly connected with retractable support portion；Wherein, the first suspension strut portion and the second suspension
Angle between support portion is acute angle in the case where stair activity is fully deployed.
According to a kind of preferred embodiment, first suspension strut portion and second suspension strut portion are provided with and answer
Variant sensor；The strain gauge transducer is for monitoring the first suspension described in stair activity expansion or folding process
The stress of support portion and second suspension strut portion.
According to a kind of preferred embodiment, adjacent first pavement and second pavement are described by being fixed on
The working space that retractable support portion limits is located at different retractable support portions in the case where stair activity is fully deployed in height
Upper to be spaced the transfer table rotation connection being staggered, the transfer table is provided with linkwork, and the transfer table is provided with linkwork；
Wherein, the linkwork include at least hingedly turn and be provided with agree with the rotation cambered surface in the hinged swivel it is hinged
The hinge bar in hole；The hinged swivel further includes swivel seat；The hinge bar is inserted into pivoting support in an interference fit；Its
In, the first swivel seat is fixedly installed in first pavement, and the second swivel seat is fixedly installed in second pavement；First
Pivoting support is fixedly installed in the opposite side of the transfer table Yu first pavement, and the second pivoting support is fixedly installed in described
The opposite side of transfer table and second pavement, when injecting hydraulic oil in the Telescopic short piece or releasing hydraulic oil, thus
First pavement and/or second pavement can be extended or be shortened based on the retractable support portion to be limited around the linkwork
Axis rotation, to change first angle of gradient of first pavement and/or second angle of gradient of second pavement.
According to a kind of preferred embodiment, it is provided on first pavement along first step road length direction
First protective fence, and the first protective fence for being located at outside is arranged in a manner of it can extend to the transfer table；Described second
It is provided with the second protective fence along second step road length direction on pavement, and is located at second protective fence in outside can prolong
The mode for extending to the transfer table is arranged.
According to a kind of preferred embodiment, the first pavement and the second pavement all include pedal and treadle supporting plate；It steps on
Plate is installed on treadle supporting plate, wherein pedal is set in the way of it can stretch in the height direction and/or on length direction
It sets；And/or treadle supporting plate is arranged in the way of it can stretch；To in first angle of gradient and second step of the first pavement
In the case that second angle of gradient in road changes, pedal and/or treadle supporting plate can free extension with adapt to first angle of gradient and/
Or second the angle of gradient change bring length variation.
The present invention provides a kind of suspension type deep basal pit stair activity, at least has the advantage that
(1) stair activity of the invention has different working conditions, can by the elongation in retractable support portion or
Person shortens to adjust depth of the stair activity in deep basal pit, can be in the case where not carrying out structure change to stair activity only
Reach the required height of construction by adjusting space size, overcomes existing stair activity and need through manpower constantly to upper
It goes downstairs the technical issues of being assembled.Secondly, the stair activity can be realized on mostly by adjusting the angle of gradient of pavement unit
The variation for gradient of going downstairs, to meet the needs of different Construction States.
(2) if when the pavement unit of the bottom is unsatisfactory for fully unfolded position, the present invention can be flexible single by adjusting
Member length and/or stair activity package assembly, each construction period for the deep basal pit that can link closely adjust in real time highly to
The needs of deep basal pit operation can be can smoothly enter into meet each depth in deep basal pit construction by meeting worker, to overcome existing skill
It needs to assist stair activity just to can enter the technical issues of deep basal pit carries out operation by outer tower in art.
(3) deep basal pit stair activity of the invention can provide safety and convenience for construction personnel, fast with dismounting speed,
Arrange the advantages such as speed is fast, turnover rate is high, security performance is high.
Detailed description of the invention
Fig. 1 is a kind of a kind of schematic elevation view of preferred structure of suspension type deep basal pit stair activity provided by the invention；
Fig. 2 is a kind of a kind of left view schematic diagram of preferred structure of suspension type deep basal pit stair activity provided by the invention；
Fig. 3 is the schematic diagram of a kind of suspension type deep basal pit stair activity provided by the invention being fully deployed；
Fig. 4 is a kind of composition schematic diagram of the pavement unit of suspension type deep basal pit stair activity provided by the invention；
Fig. 5 is a kind of a kind of preferred structure signal of the Telescopic short piece of suspension type deep basal pit stair activity provided by the invention
Figure；
Fig. 6 is that a kind of one kind of the fixed plate of the Telescopic short piece of suspension type deep basal pit stair activity provided by the invention is preferred
Structural schematic diagram；
Fig. 7 is a kind of connection knot of adjacent two Telescopic short piece of suspension type deep basal pit stair activity provided by the invention
Structure schematic diagram；
Fig. 8 is the company between the first pavement and the second pavement of a kind of suspension type deep basal pit stair activity provided by the invention
Connect structural representation enlarged drawing, i.e., the partial enlarged view of part A as shown in Figure 4；
Fig. 9 is a kind of a kind of preferred structure signal of the articulated structure of suspension type deep basal pit stair activity provided by the invention
Figure；
Figure 10 is a kind of a kind of excellent brill structural representation of the hinge bar of suspension type deep basal pit stair activity provided by the invention
Figure；With
Figure 11 is that a kind of pedal of suspension type deep basal pit stair activity provided by the invention and the structure of treadle supporting plate are shown
It is intended to, i.e., the partial enlarged view of part B as shown in Figure 4.
Reference signs list
1: the first the 4a: the first suspension strut of pavement portion
2: the second the 4b: the second suspension strut of pavement portions
3: retractable support portion 12a: linkwork
4: suspension part 12b: hinged swivel
12: transfer table 12c: rotation cambered surface
1a: the first pavement I 12d: hinge hole
1b: the first pavement II 12e: hinge bar
2a: the second pavement I 12f: swivel seat
2b: the second pavement II 12g: pivoting support
3a: α: the first angle of gradient of telescopic rod
3a-1: β: the second angle of gradient of fixed plate
3a-2: threaded hole
Specific embodiment
It 1 to 11 is described in detail with reference to the accompanying drawing.
It in description of the invention, term " first ", " second ", " third " and is used for description purposes only, and should not be understood as
Indication or suggestion relative importance or the quantity for implicitly indicating indicated technical characteristic." first ", " are defined as a result,
Two ", " third " and feature can explicitly or implicitly include one or more of the features.In description of the invention
In, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " inside ", " inside " is that orientation based on the figure or position are closed
System, is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
Connection inside part.For the ordinary skill in the art, above-mentioned term can be understood in this hair as the case may be
Concrete meaning in bright.
In the present invention, term " removably " is bonding, key connection, threaded connection, pin connection, clamping, hinge
It connects, one of clearance fit or transition fit.For the ordinary skill in the art, it can manage as the case may be
Solve the concrete meaning of above-mentioned term in the present invention.
Embodiment 1
Present embodiment discloses a kind of suspension type deep basal pit stair activities, in the case where not causing conflict or contradictory situation,
The entirety and/or partial content of the preferred embodiment of other embodiments can be used as the supplement of the present embodiment.Preferably, on this
Going downstairs can be realized by method of the invention and/or other alternative modules.The stair activity is the passage of construction personnel
Safety and convenience, and simple, the high advantage of the reusable rate of components with dismounting process are provided.
As illustrated in fig. 1 and 2, the present embodiment provides a kind of suspension type deep basal pit stair activities.The stair activity includes several
First pavement 1, several second pavements 2, retractable support portion 3 and several suspension parts 4.Several first pavements 1 and several second pavements
2, several pavement units are constituted as construction personnel, and installation passage is provided.Retractable support portion 3 defines the working space of stair activity
And support is provided for the first pavement 1 and the second pavement 2.Several suspension parts 4, are attached to retractable support portion 3, are used to support up and down
Stair.So that stair activity is occupied in a hanging manner in a part of space of foundation pit.The segment space is by stair activity
Volume defining.For example, the stair activity is installed on the due east direction of foundation pit, and it is installed the length of rear stair activity
Respectively 4m, 4m and 10m, then stair activity occupies the 160m in foundation pit due east direction in a hanging manner3Space.It is any outstanding
The one end in extension portion 4 is pivotally set to the foundation of deep basal pit, and the other end is installed on retractable support portion 3, thus
Stair activity is enabled to be set to the inner space of deep basal pit in a hanging manner.First pavement 1 is installed on the second pavement 2
The inner space limited by retractable support portion 3.Retractable support portion 3 includes several telescopic rods 3a, and the first pavement 1 is respectively arranged in
Between two ipsilateral but different axis telescopic rod 3a, the second pavement 2 is respectively arranged between two telescopic rod 3a of heteropleural.
First pavement 1 is pivotally connect with the second pavement 2.First pavement 1 is set with the second pavement 2 according to not parallel mode
It sets.When imposing thrust or pulling force to telescopic rod 3a, the first pavement 1 can change first around the mode that the second pavement 2 rotates
The first angle of gradient β and/or the second pavement 2 of pavement can change the second of the second pavement 2 in a manner of around the rotation of the first pavement 1
Angle of gradient α, thus stair activity can according to the first angle of gradient β and the second angle of gradient α variation by fold or expansion
Mode is installed on the inner space of deep basal pit.When imposing thrust or pulling force to telescopic rod 3a, the first pavement 1 can be around second
The mode that pavement 2 rotates changes the first angle of gradient β of the first pavement；And/or second pavement 2 can with around the first pavement 1 rotate
Mode change the second angle of gradient α of the second pavement 2；To which stair activity can be according to the first angle of gradient β and the second angle of gradient α
Variation the inner space of deep basal pit is installed on by way of folding or being unfolded so that stair activity can allow work
Personnel gradually tripping in deep basal pit or gradually return to earth's surface.Stair activity of the invention has different working conditions
It, can be not to upper and lower to adjust depth of the stair activity in deep basal pit by the elongation or shortening in retractable support portion 3
Stair carry out height needed for reaching construction only by adusting space size in the case where structure change, overcome above and below existing
Stair need the technical issues of constantly assembling to stair activity by manpower；Secondly, the stair activity can pass through tune
The angle of gradient of section pavement unit realizes the variation of more stair activity gradients, to meet the needs of different Construction States.
Preferably, in the case where the depth of deep basal pit is fully deployed insufficient for undermost pavement unit, up and down
Stair can be by dismantling the first pavement I1a in undermost pavement unit, the first pavement II1b, the second pavement I2a and the
At least one of two pavement II2b, so that stair activity meets the depth of deep basal pit in height.And/or stair activity can
By shortening at least one telescopic rod 3a to change first angle of gradient of the first pavement and/or change second gradient of the second pavement
The pavement unit having been fully deployed is adjusted to folded state by the form at angle, so that stair activity meets depth in height
The depth of foundation pit.If the present invention can be flexible single by adjusting when the pavement unit of the bottom is unsatisfactory for fully unfolded position
The length of member and/or the package assembly of stair activity, it is existing to overcome to meet the needs of each depth in deep basal pit construction
It needs to assist stair activity just to can enter the technical issues of deep basal pit carries out operation by outer tower in technology.
Preferably, as shown in figure 4, observing in top view direction, the first pavement 1 includes the first step being arranged in parallel
Road I1a and the first pavement II1b, the second pavement 2 include the second pavement I2a and the second pavement II2b being arranged in parallel.The
One pavement I1a, the first pavement II1b, the second pavement I2a and the second pavement II2b define a pavement unit, stair activity root
According to the depth of deep basal pit, several pavement units can be set.Wherein, as shown in figure 3, stair activity is the case where being fully deployed
Under, the first pavement 1 and the second pavement 2 are in following state: observed in side view orientation, first angle of gradient of the first pavement I1a and
First second angle of gradient of pavement II1b opposite number each other；It is observed in main view direction, second angle of gradient of the second pavement I2a and the
Second angle of gradient of two pavement II2b opposite number each other；To pavement unit be can allow staff gradually tripping in deep basal pit or
Person gradually returns to the circular passage of earth's surface.For example, as illustrated in fig. 1 and 2, first angle of gradient of the first pavement I1a is 15 ° and first
Second angle of gradient of pavement II1b is -15 °.Second gradient that second angle of gradient of second pavement I2a is 15 ° and the second pavement II2b
Angle is -15 °.First angle of gradient of first pavement I1a can also be 20 and 25 °；The angle of gradient of first pavement II1b is then corresponding
- 20 ° and -25 °.Second angle of gradient of second pavement I2a can also be 20 ° and 25 degree；The second slope of second angle of gradient II2b
Spending angle is then corresponding -20 ° and -25 °.In view of stair activity is the truss structure that can be reused, used zero
Component can be made into standard component, to reduce manufacturing cost and use cost.Preferably, the case where stair activity is fully deployed
Under, first angle of gradient of the first pavement I1a is 15 ° and first second angle of gradient of pavement II1b is -15 °.The of second pavement I2a
Two angles of gradient are 15 ° and second angle of gradient of the second pavement II2b is -15 °.
Preferably, telescopic rod 3a is to go downstairs in the way of hydraulic-driven to the first angle of gradient β, the second angle of gradient α and above
The height adjustment of ladder.Wherein, the equal of each telescopic rod 3a is provided with electromagnetic flow valve between the hydraulic circuit of hydraulic system.
The elongation or shortening amount of telescopic rod 3a can be by adjusting the aperture of electromagnetic flow valve or adjusting the side of hydraulic pressure
Formula is adjusted.The height of first angle of gradient β, the second angle of gradient α and stair activity are based on the elongation of telescopic rod 3a or contracting
Loss of quantity adjustment.For example, hydraulic system includes hydraulic pump, hydraulic oil tank and hydraulic circuit.In hydraulic system into telescopic rod 3a
Inject high pressure liquid pressure oil when, telescopic rod 3a can the high pressure liquid pressure oil based on injection and extend.Hydraulic system by hydraulic oil into
When row recycling, telescopic rod 3a just can shorten to restore its initial length.Specifically, telescopic rod 3a at least has short there are two stretching
Section, Telescopic short piece realize elongation under the driving of hydraulic oil pressure or shorten that, when stopping injecting hydraulic oil, Telescopic short piece exists
Being formed under the action of hydraulic oil in the oil pocket of telescopic rod 3a supports entire stair activity.As shown in Figure 5, it is preferred that flexible
There are three Telescopic short pieces for bar 3a tool.Telescopic rod 3a can also be 2,4 or more.In view of support effect and stretch
The buckling stability of bar 3a, Telescopic short piece are preferably 3 sections.The internal structure of telescopic rod 3a is the prior art having been known, then
It is secondary not repeat.And the injection of hydraulic oil or discharge mode can be opened using the side wall of the both ends Telescopic short piece in telescopic rod 3a
If fuel feed hole and oil outlet.Fuel feed hole and oil outlet are connect with the seal for pipe joints in hydraulic circuit.Hydraulic system can be set
In each telescopic rod 3a neighbouring pavement unit and indicate safety sign.
Preferably, between two adjacent telescopic rod 3a be attached by dismountable mode, in order to
In the case that the depth of deep basal pit is fully deployed insufficient for undermost pavement unit, undermost pavement unit is carried out
Disassembly.Preferably, as shown in fig. 7, being connected between two adjacent telescopic rod 3a by fastener, and the fastener is conveniently torn open
It unloads.For example, as it can be seen in figures 5 and 6, the equal integral type in the both ends of telescopic rod 3a is provided with several and matched threaded hole of stud
The fixed plate 3a-1 of 3a-2, when stud screws in two adjacent fixed plate 3a-1, adjacent telescopic rod 3a is with dismountable side
Formula connection.After stud screws in and it is equipped with matched nut and is further fastened.Preferably, the lead angle of threaded hole 3a-2 is small
In the equivalent friction angle for the screw pair that stud and threaded hole 3a-2 are formed, will not reliably be loosened automatically with realizing that this is fastenedly connected,
To guarantee the safety of the stair activity.Lead angle is lead angle, be on central diameter cylinder the tangent line of helix with it is vertical
In the angle of the interplanar of the axis of thread, which influences screw thread self-locking and locking.Equivalent friction angle and form of thread angle γ phase
It closes.Form of thread angle γ is the angle of form of thread two sides in screw thread axial cross section.The side of form of thread and the axis of thread
The angle of vertical plane claim flank angle θ, symmetrical flank angle θ=γ/2.Equlvalent coefficient of friction fv=f/cos θ, f are friction
Coefficient.And equivalent friction angle ψ=arctan fv。
Preferably, as shown in Fig. 2, suspension part 4 includes at least the first suspension strut portion 4a and the second suspension strut portion 4b.Its
In, one end of one end of the first suspension strut portion 4a and the second suspension strut portion 4b pass through the lower margin spiral shell for being embedded in foundation in advance
Bolt is fixedly connected with foundation.Wherein, the angle between the first suspension strut portion 4a and the second suspension strut portion 4b is upper and lower
Stair are acute angle in the case where being fully deployed.Newel post made of foundation includes concrete foundation, pours with concrete foundation,
Foundation bolt is then embedded in inside concrete foundation and newel post.Preferably, foundation bolt is embedded in concrete in vertical manner
Inside basis and newel post.Preferably, foundation has also buried shear key.Preferably, the foundation is in surveying setting-out
After completion, the excavation of foundation pit is carried out according to the detail of design on basis.Foundation pit after excavation is compacted and clears up completion after-pouring
The plain concrete cushion layer of C15.After the completion of plain concrete cushion layer construction, two-way concrete slab is laid on bed course, at the bottom of lower layer's reinforcing bar
Concrete pad is placed at end, and to newel post and ground beam steel bar colligation, and buries foundation bolt, after the completion of reinforcing bar binding and formwork
Casting concrete, placed in the hole to be provided of newel post 2 after the completion of the initial set shear key and it is secondary pour, pour C35 microlith coagulation
Soil.First suspension strut portion 4a and the second suspension strut portion 4b be concrete foundation be partially completed Shi Bingneng reach can install it is outstanding
It is installed after the design strength in extension portion.Heel slab is laid in newel post, heel slab and pre-buried shear key weld and will
The one end of the one end of first suspension strut portion 4a and the second suspension strut portion 4b are welded on heel slab, at foundation bolt
The steel plate of laying is fastened on steel plate on foundation bolt with nut.It is more than column in shearing in steel construction design of column foot now
Shear key is set between foot and concrete when frictional force.It is usually vertically welded in the water of suspension column bottom surface with thicker channel steel or I-steel
On plain plate, and it is embedded in the shearing resistance slot reserved in concrete foundation.
Preferably, the other end of the other end of the first suspension strut portion 4a and the second suspension strut portion 4b pass through with the side of fixation
The bolt that formula is set on 3 backing plate of retractable support portion is fixedly connected with retractable support portion 3.The other end of first suspension strut portion 4a
Have with the other end of the second suspension strut portion 4b and has the fixing piece with the matched screw hole of bolt.Preferably, backing plate with stretch
The connection of contracting support portion integral type.
Preferably, the first suspension strut portion 4a and the second suspension strut portion 4b are provided with strain gauge transducer.Strain-type passes
Sensor be used to monitor stair activity be unfolded or folding process in the first suspension strut portion 4a and the second suspension strut portion 4b answer
Power.Stress has directly reacted the stress condition of the first suspension strut portion 4a and the second suspension strut portion 4b, when stress is more than first
It, can be by changing retractable support portion when the yield limit or strength degree of suspension strut portion 4a and the second suspension strut portion 4b
Length reduce the stress of the first suspension strut portion 4a and the second suspension strut portion 4b.The judge of stress can be drawn by maximum
Stress theory, maximum shear stress theory and distortion energy theory carry out.Specifically, strain gauge transducer is by wiredly and/or wirelessly
Mode strain signal is transmitted to the data processor of monitoring center.Data processor, which has, goes out stress for strain signal inverse
Ability, such as data operation server and data processing chip.Then data processor answers stress value with maximum drawing respectively
Power theory, maximum shear stress theory and the corresponding limiting value of distortion energy theory compare.When stress value is more than one of limiting value
When, data processor issues alarm signal to monitoring center.Construction personnel can be allowed based on alarm signal the length of support portion come
Reduce the stress of the first suspension strut portion 4a and the second suspension strut portion 4b.Under normal conditions, the sensing element of strain gauge transducer
Part uses resistance strain plate.The physical characteristic and geometrical property of conductor is utilized in resistance strain plate well.It is led when one
Body in its elastic limit by force-extension when, will not be pulled off or generate permanent deformation and elongated, this deformation that can narrow
Its end resistance is resulted in become larger.It shortens on the contrary, can broaden after a conductor is compressed, this deformation results in the change of its end resistance
It is small.By measuring the resistance of foil gauge, the strain of overlay area can evolve.The sensitive grid of foil gauge is one narrow
One group of parallel wire that conductor bar complications are arranged in, such arrangement can by the micro-strain of base direction accumulate get up with
Form a biggish resistance change aggregate-value.The sensing element of strain gauge transducer can also use optical strain gauge strips, example
Such as Bragg optical grating strain piece.Strain is finally inversed by stress by generalized Hooke law, specifically:
Wherein, E is elasticity modulus of materials, υ is material Poisson's ratio, G is material modulus of shearing.ε is normal strain, and γ is to cut to answer
Become, σ is stress.
Preferably, as shown in figures 4 and 8, the first adjacent pavement 1 and the second pavement 2 are limited by being fixed on retractable support portion 3
The transfer table 12 of fixed working space is rotatablely connected.Transfer table 12 is provided with the hinged machine for the first pavement 1 and the second pavement 2
Structure 12a.Wherein, rotating mechanism 12a includes at least hinged swivel 12b and is provided with and the rotation cambered surface 12c in hingedly swivel 12b
The hinge bar 12e of the hinge hole 12d agreed with.It is gap-matched or is interference fitted between hinged swivel 12b and hinge hole 12d.
Clearance fit or interference fit, which enable to hingedly turn 12b and hinge hole 12c and can either mutually rotate also, can limit the two
Between slide axially, enable to hingedly turn 12b and hinge hole 12d rotation it is more reliable.Preferably, 12b is hingedly turned
It further include swivel seat 12f.Swivel seat 12f and rotation cambered surface 12b preferably use integral structure.Hinge bar 12e is preferably with interference
The mode of cooperation is inserted into pivoting support 12g.As shown in Figure 9, it is preferred that the first swivel seat is fixedly installed in the first pavement 1.Second
Swivel seat is fixedly installed in the second pavement 2.First pivoting support is fixedly installed in the opposite side of transfer table 12 and the first pavement 1.
Second pivoting support is fixedly installed in the opposite side with the second pavement 2.Fixed mode can be adopted by the way of welding
It is fixed, can also be fixed using integral type with by way of Stud connection.Preferably, transfer table 12 can be with dismountable
Form is installed on retractable support portion 3, is also possible to connect in the form of integral type with retractable support portion 3.In view of retractable support
Intensity requirement, stability requirement and the requirement of flexible reliability in portion 3, transfer table 12 are preferably in the form of integral type and flexible
Support portion connection.Preferably, several hinge hole 12d, corresponding hinged swivel are provided on hinge bar 12e in an array manner
12b also has several.For example, as shown in Figure 10,3 12d are provided with along the axis direction of hinge bar 12e.Work as Telescopic short piece
The elongation of retractable support portion 3 or shortening when interior injection hydraulic oil perhaps releases hydraulic oil, thus the first pavement 1 and/or second step
It road 2 can be around the axis rotation that linkwork limits, to change the first angle of gradient α and/or the second pavement 2 of the first pavement 1
The second angle of gradient β.
From the above it can be concluded that the adjacent transfer table 12 positioned at different retractable support portions is complete in stair activity
Interval is staggered in height in the case where expansion.Preferably, transfer table 12 can be used as half space, can also place liquid
Pressure system.In order to guarantee the load-bearing stability and safe and applicable property of transfer table 12, the bottom surface of transfer table 12 is provided with and integral type
Or it is welded in the triangle stiffening plate in retractable support portion 3.
Preferably, it is provided with the first protective fence along 1 length direction of the first pavement on the first pavement 1, and is located at outside
The first protective fence be arranged in a manner of it can extend to transfer table 12.It is provided on the second pavement 2 along 2 length of the second pavement
Second protective fence in direction, and the second protective fence for being located at outside is arranged in a manner of it can extend to transfer table 12.First is anti-
Guardrail and the second protective fence can prevent accident of the construction personnel when walking about from falling, and improve the safety of construction stair.It is preferred that
, the first protective fence and the second protective fence are metal protection columns.
Preferably, the first pavement 1 and the second pavement 2 all include pedal and treadle supporting plate.Pedal is installed on pedal branch
On fagging, to the channel above and below being provided to construction personnel.Due to first angle of gradient and second pavement 2 in the first pavement 1
During second angle of gradient changes, the length of the first pavement 1 and the second pavement 2 can change.Therefore, pedal is in height side
It is arranged to according to telescopic mode.For example, pedal can have the corrugated plating of ductility in the height direction.It is two neighboring to step on
Plate can in the height direction using interference fit by the way of connect, for example, be located at upper end pedal in a manner of grafting under
The pedal at end and upper end pedal is still not able to fall off from lower end pedal in the case where stair activity is fully deployed.Treadle supporting
Plate is arranged according to telescopic mode.Two adjacent pedals are provided with telescopic joint, such as spring between length direction.Pedal
Support plate is arranged according to telescopic mode.For example, treadle supporting plate is provided with the malleable corrugated plating of tool.Treadle supporting plate
It can be set to several support plate units in such a way that head and the tail connect for moving connection each other two-by-two.
Preferably, each components of stair activity of the invention can be fabricated to standard component, meet the stair activity
The growth requirement of the standardization formula of safety device, tool formula.
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention range and fall into this hair
Within bright protection scope.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Constitute limitations on claims.Protection scope of the present invention is defined by the claims and their equivalents.
Claims (10)
1. a kind of suspension type deep basal pit stair activity, comprising:
Several first pavements (1) and several second pavements (2) constitute several pavement units as staff and provide channel；
Retractable support portion (3) defines the working space of the stair activity and is first pavement (1) and described second
Pavement (2) provides support；
Several suspension parts (4) are attached to the retractable support portion (3), are used to support the stair activity；
It is characterized in that,
One end of any suspension part (4) is fixedly installed on the foundation of the deep basal pit, and the other end is fixedly installed in institute
Retractable support portion (3) are stated, so that the inside that the stair activity can be set to the deep basal pit in a hanging manner is empty
Between；
First pavement (1) and second pavement (2) are installed on the inner space limited by retractable support portion (3), in which:
The retractable support portion (3) includes several telescopic rods (3a), and first pavement (1) is respectively arranged in ipsilateral but axis
Between two different telescopic rods (3a) of line, second pavement (2) is respectively arranged between two telescopic rods (3a) of heteropleural,
And first pavement (1) is rotatablely connected with second pavement (2) according to the mode of being not substantially parallel with each other；
When imposing thrust or pulling force to the telescopic rod (3a), first pavement (1) can be around second pavement (2)
The mode of rotation changes first angle of gradient (β) of first pavement；And/or second pavement (2) can be around described
The mode of one pavement (1) rotation changes second angle of gradient (α) of second pavement (2)；To which the stair activity can be according to
It is installed on by way of folding or being unfolded according to the variation of first angle of gradient (β) and second angle of gradient (α) described
The inner space of deep basal pit so that the stair activity can allow staff gradually tripping in deep basal pit or gradually return ground
Table.
2. stair activity as described in claim 1, which is characterized in that the deep basal pit depth insufficient for lowest level
The pavement unit be fully deployed in the case where, the stair activity can pass through the disassembly undermost pavement list
The first pavement I (1a), the first pavement II (1b), the second pavement I (2a) and the second pavement II (2b) in member
At least one so that the stair activity meets the depth of the deep basal pit in height；And/or
The stair activity can be by shortening at least one described telescopic rod (3a) to change the first slope of first pavement
The pavement unit having been fully deployed is adjusted to by the form of second angle of gradient of degree angle and/or change second pavement
Folded state, so that the stair activity meets the depth of the deep basal pit in height.
3. stair activity as claimed in claim 1 or 2, which is characterized in that observed in top view direction, first pavement
It (1) include the first pavement I (1a) and the first pavement II (1b) being arranged in parallel, second pavement (2) includes with flat
The the second pavement I (2a) and the second pavement II (2b) of line mode setting,
The first pavement I (1a), the first pavement II (1b), the second pavement I (2a) and the second pavement II (2b) limit
The pavement unit is determined, several pavement lists can be arranged according to the depth of the deep basal pit in the stair activity
Member；
Wherein, for the stair activity in the case where being fully deployed, first pavement (1) and second pavement (2) are in such as
Lower state:
It is observed in side view orientation, first angle of gradient of the first pavement I (1a) and first second angle of gradient of pavement II (1b)
Opposite number each other；It is observed in main view direction, second angle of gradient of the second pavement I (2a) and the second pavement II (2b)
Second angle of gradient opposite number each other；To which the pavement unit is can to allow staff's gradually tripping in deep basal pit or gradually
Return to the circular passage of earth's surface.
4. the stair activity as described in one of preceding claims, which is characterized in that the telescopic rod (3a) is according to hydraulic drive
Dynamic mode adjusts the height of first angle of gradient (β), second angle of gradient (α) and the stair activity,
Wherein, each described the equal of telescopic rod (3a) is provided with electromagnetic flow valve between the hydraulic circuit of hydraulic system；Institute
The elongation or shortening amount for stating telescopic rod (3a) can be by adjusting the aperture of the electromagnetic flow valve or adjusting hydraulic
The mode of pressure is adjusted；The height of first angle of gradient (β), second angle of gradient (α) and the stair activity is based on institute
State elongation or the shortening amount adjustment of telescopic rod (3a)；
Wherein, the side wall of the both ends Telescopic short piece of telescopic rod (3a) opens up fuel feed hole and oil outlet；The fuel feed hole and it is described go out
Oilhole is connect with the seal for pipe joints in hydraulic circuit.
5. the stair activity as described in one of preceding claims, which is characterized in that be between two adjacent telescopic rods (3a)
Be attached by dismountable mode, in order in the depth in the deep basal pit insufficient for the undermost step
In the case that road unit is fully deployed, the undermost pavement unit is dismantled；
Wherein, the equal integral type in both ends of the telescopic rod (3a) is provided with several and the matched threaded hole of stud (3a-2)
Fixed plate (3a-1), when the stud screws in corresponding fixed plate (3a-1) of the telescopic rod (3a) of adjacent two,
The adjacent telescopic rod (3a) removably connects.
6. the stair activity as described in one of preceding claims, which is characterized in that it is outstanding that the suspension part (4) includes at least first
Support portion (4a) and the second suspension strut portion (4b) are hung,
Wherein, the one end in the one end in first suspension strut portion (4a) and second suspension strut portion (4b) passes through pre- embedded
It is fixedly connected in the foundation bolt of the foundation with the foundation；The other end in first suspension strut portion (4a)
The other end with second suspension strut portion (4b) by being set on retractable support portion (3) backing plate in a position-stable manner
Bolt is fixedly connected with the retractable support portion (3)；
Wherein, the angle between first suspension strut portion (4a) and second suspension strut portion (4b) is above gone downstairs described
Ladder is acute angle in the case where being fully deployed.
7. the stair activity as described in one of preceding claims, which is characterized in that first suspension strut portion (4a) and institute
It states the second suspension strut portion (4b) and is provided with strain gauge transducer；
The strain gauge transducer is for monitoring the first suspension strut portion described in stair activity expansion or folding process
The stress of (4a) and second suspension strut portion (4b)；
When the stress be more than first suspension strut portion (4a) and second suspension strut portion (4b) yield limit or
When person's strength degree, the stress can be reduced based on elongating or shortening for the retractable support portion (3).
8. the stair activity as described in one of preceding claims, which is characterized in that adjacent first pavement (1) with it is described
Second pavement (2) is by being fixed on the feelings being fully deployed in stair activity of the working space that the retractable support portion (3) limits
It is located at different retractable support portions under condition and is spaced transfer table (12) rotation connection being staggered, transfer table (12) setting in height
There is linkwork (12a)；
Wherein, the linkwork (12a) include at least hinged swivel (12b) and be provided with in the hinged swivel (12b)
The hinge bar (12e) of hinge hole (12d) that agrees with of rotation cambered surface (12c)；The hinged swivel (12b) further includes swivel seat
(12f)；The hinge bar (12e) is inserted into pivoting support (12g) in an interference fit；
Wherein, the first swivel seat is fixedly installed in first pavement (1), and the second swivel seat is fixedly installed in described second
Pavement (2)；First pivoting support is fixedly installed in the opposite side of the transfer table (12) Yu first pavement (1), the second hinge
The opposite side that support is fixedly installed in the transfer table (12a) Yu second pavement (2) is connect,
When injecting hydraulic oil in the Telescopic short piece or releasing hydraulic oil, thus the first pavement (1) and/or the second step
Road (2) can extend based on the retractable support portion (3) or shorten the axis rotation limited around the linkwork (12a),
To change first angle of gradient (α) of first pavement (1) and/or second angle of gradient (β) of second pavement (2).
9. the stair activity as described in one of preceding claims, which is characterized in that be provided with edge on first pavement (1)
First protective fence of the first pavement (1) length direction, and it is located at first protective fence in outside can extend to described turn
The mode of zapping (12) is arranged；
It is provided with the second protective fence along the second pavement (2) length direction on second pavement (2), and is located at outside
The second protective fence be arranged in a manner of it can extend to the transfer table (12).
10. the stair activity as described in one of preceding claims, which is characterized in that first pavement (1) and described second
Pavement (2) all includes pedal and treadle supporting plate；The pedal is installed on the treadle supporting plate,
Wherein, the pedal is arranged in the way of it can stretch in the height direction and/or on length direction；And/or it is described
Treadle supporting plate is arranged in the way of it can stretch；To in first angle of gradient and described second of first pavement (1)
In the case that second angle of gradient of pavement (2) changes, the pedal and/or the treadle supporting plate can free extension to adapt to
The variation of the change bring length of first angle of gradient and/or second angle of gradient.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110052372.9A CN112854233A (en) | 2018-11-20 | 2018-11-20 | Deep foundation pit up-down stairs and telescopic support part and suspension part for stairs |
| CN201811380067.7A CN109958134B (en) | 2018-11-20 | 2018-11-20 | Suspension type deep basal pit stairs up and down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380067.7A CN109958134B (en) | 2018-11-20 | 2018-11-20 | Suspension type deep basal pit stairs up and down |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110052372.9A Division CN112854233A (en) | 2018-11-20 | 2018-11-20 | Deep foundation pit up-down stairs and telescopic support part and suspension part for stairs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109958134A true CN109958134A (en) | 2019-07-02 |
| CN109958134B CN109958134B (en) | 2021-07-27 |
Family
ID=67023259
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811380067.7A Active CN109958134B (en) | 2018-11-20 | 2018-11-20 | Suspension type deep basal pit stairs up and down |
| CN202110052372.9A Withdrawn CN112854233A (en) | 2018-11-20 | 2018-11-20 | Deep foundation pit up-down stairs and telescopic support part and suspension part for stairs |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110052372.9A Withdrawn CN112854233A (en) | 2018-11-20 | 2018-11-20 | Deep foundation pit up-down stairs and telescopic support part and suspension part for stairs |
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| CN (2) | CN109958134B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113089677A (en) * | 2021-04-13 | 2021-07-09 | 王惠娟 | Deep foundation pit integral structure for building construction and construction method thereof |
| CN113090072A (en) * | 2021-04-10 | 2021-07-09 | 新力建设集团有限公司 | Safety ladder way suitable for deep foundation pit slope-making type excavation construction and assembling method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775532B (en) * | 2022-05-20 | 2024-01-26 | 四川水发建设有限公司 | Platform for dam water-facing slope construction |
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| JPH05125843A (en) * | 1991-10-22 | 1993-05-21 | Mitsui Constr Co Ltd | Unit staircase |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113090072A (en) * | 2021-04-10 | 2021-07-09 | 新力建设集团有限公司 | Safety ladder way suitable for deep foundation pit slope-making type excavation construction and assembling method |
| CN113089677A (en) * | 2021-04-13 | 2021-07-09 | 王惠娟 | Deep foundation pit integral structure for building construction and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112854233A (en) | 2021-05-28 |
| CN109958134B (en) | 2021-07-27 |
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