CN107476317A - The support component removed for internal support of foundation pit beam - Google Patents
The support component removed for internal support of foundation pit beam Download PDFInfo
- Publication number
- CN107476317A CN107476317A CN201710873982.9A CN201710873982A CN107476317A CN 107476317 A CN107476317 A CN 107476317A CN 201710873982 A CN201710873982 A CN 201710873982A CN 107476317 A CN107476317 A CN 107476317A
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- Prior art keywords
- top plate
- screw rod
- lifting
- supporting station
- groove
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Classifications
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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
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses the support component removed for internal support of foundation pit beam, including supporting station and multiple legs, multiple grooves are provided with supporting station upper surface, screw rod activity enters in groove after running through supporting station lower surface, the fixation top plate of circle is installed in screw rod upper end end, lifting top plate is provided with screw rod outer circle wall, lifting top plate is placed in groove, circular trough is provided with lifting cover top surface, the axial depth of circular trough is more than the axial length of fixed top plate, guide rail is provided with groove inner wall along the axial direction of screw rod, opening is provided with lifting top plate outer wall.In cutting process, lift top plate and form an entirety with supporting station, limited respectively by groove and screw rod, compared with traditional lumps of wood plug, any skew will not occur for lifting top plate, and when producing certain effect stress when cut, the spring under compressive state equally can provide stress buffer for lifting top plate all the time, and then ensure to lift the stability of top plate in the vertical direction.
Description
Technical field
The present invention relates to the realm of building construction, and in particular to the support component removed for internal support of foundation pit beam.
Background technology
Pattern foundation pit supporting structure, it is to ensure the safety of Underground Construction and foundation ditch surrounding enviroment, to foundation pit side-wall and peripheral ring
Supporting and retaining system, reinforcing and the safeguard measure that border uses.And internal support of foundation pit is one kind in pattern foundation pit supporting structure.Underground structure is applied in foundation ditch
Work is completed, and will need to remove pair of interior support after the backfill of space between foundation ditch and outer wall of underground structure.And inner support beam is
One of main composition part in inner supporting structure, inner support beam, it is necessary to follow first tear girder open when removing, after tear crossbeam open；First tear open
Secondary beam, then tear girder open；First tear open in girder span, after tear the principle at beam both ends open, be cut to using chain saw cut or round cutting
Segment, then the handling with tower crane, truck crane, fork truck, disintegrating machine and forklift etc..Inner support beam apart from floor spacing compared with
It is small, need to use split heads cushion cap pair of interior support beam to be supported during cutting, and traditional split heads cushion cap includes 18# channel-section steel inner supports
Beam and the 14# channel steel upright posts of inner support beam bottom, and the height of column and the length of inner support beam immobilize, when interior branch
When the spacing of support beam upper surface and inner support beam is larger, user's stopper fills the gap, but in cutting process, interior branch
Support beam can produce certain vibration so that the lumps of wood plug between inner support beam and inner support beam is subjected to displacement or directly from interior branch
Support beam upper surface to depart from, and then cause the support strength of inner support beam to reduce, and the segment inner support for easily causing cutting to be completed
Beam is overturn before by handling, and the safety of cutting construction personnel cannot be guaranteed, that is, the generation for increasing security incident is several
Rate.
The content of the invention
Present invention aims at the support component provided for the dismounting of internal support of foundation pit beam, improves inner support beam and is cutting through
Stability in journey.
The present invention is achieved through the following technical solutions：
The support component removed for internal support of foundation pit beam, including supporting station and it is arranged on multiple of supporting station bottom
Pin, multiple grooves being provided with the supporting station upper surface, screw rod activity enters in groove after running through the supporting station lower surface,
The fixation top plate of circle is installed in screw rod upper end end, matched lifting top plate is provided with screw rod outer circle wall, is carried
Rise top plate to be placed in groove, be provided with the circular trough with screw coaxial in lifting cover top surface, the external diameter of the fixed top plate is small
In the internal diameter of the circular trough, and the axial depth of circular trough is more than the axial length of fixed top plate, in addition to multiple is arranged on
The sleeve of bottom portion of groove, one end of spring are arranged on sleeve bottom, and the other end of spring contacts with the lifting top plate lower surface,
And spring is in compressive state all the time, guide rail is provided with groove inner wall along the axial direction of the screw rod, and in the lifting top plate
The opening being engaged with guide rail is provided with outer wall.For in the prior art, proceeding by segmentation along the cutting seam of inner support beam and tearing open
During except process, inner support beam easily causes the inclined of the non-cut-out of inner support beam with stress caused by sawing device interaction
Move, severe patient can cause inner support beam to depart from from supporting plane, then increase the occurrence probability of security incident；Also, tradition
Support platform use the split heads cushion cap that is welded by channel-section steel, when split heads cushion cap oneself height is inadequate, it is necessary to be held in split heads
User's stopper on platform upper surface, but lumps of wood plug is easily cut caused vibration effect, is caused after skew is produced
Gap be present between split heads cushion cap and inner support beam, cause inner support beam main part discontinuity equalization, and inner support beam is disconnected
Knick point is unpredictable so that the security reliability of cleavable site is uncontrollable；On the other hand, applicant is with regard to above-mentioned of the prior art scarce
Fall into, a kind of support component dedicated for inner support beam cutting of design, i.e., including supporting station and leg made of steel, and
Multiple grooves are provided with supporting plane on supporting station, the lower end of screw rod is connected with motor output end, and the upper end of screw rod is connected with
Fixed top plate, and the lifting top plate coordinated with screw flight is provided with the screw portion in groove, all the time in compression
Spring upper end under state contacts with lifting the bottom of top plate, i.e., when the height of supporting station or height and the interior branch of fixed top plate
Support level height residing for soffit it is identical when, support is provided by the upper surface and fixed top plate pair of interior support beam of supporting station, when cutting
When certain effect stress is produced when cutting, the spring of compression can provide a bullet opposite with applied stress to lifting top plate, screw rod
Power, i.e., it will can be eliminated on fixed top plate and supporting plane by applied stress, to ensure inner support beam in cutting process
Stability；When the height of supporting station or the height of fixed top plate are less than level height residing for inner support beam bottom surface, start
Motor so that screw rod starts to rotate, and lifts top plate and screw rod and cooperate, and on starting under the guiding restriction effect of guide rail
Rise, and in top plate uphill process is lifted, fixed top plate is remained stationary as, and fixed top plate is fully wrapped around, root is moved on circular trough
According to the difference in height numerical value between fixed top plate and inner support beam bottom, to determine to be lifted the amount of moving up of top plate, and when lifting top plate
When upper surface contacts with inner support beam bottom, stop the work of motor, that is, realize the support of lifting top plate pair of interior support beam, and
In cutting process, lifting top plate forms an entirety with supporting station, is limited respectively by groove and screw rod, with traditional lumps of wood
Plug is compared, and any skew will not occur for lifting top plate, and when producing certain effect stress when cut, all the time in compressive state
Under spring equally can for lifting top plate stress buffer be provided, and then ensure lifting top plate in the vertical direction stability,
So that inner support beam forms multistage size identical segment after being cut along cutting seam, to facilitate the lifting in later stage to transport,
The safety of workmen in cutting process is ensured simultaneously, reduces the occurrence probability of security incident.
Helicla flute is provided with the upper surface of the fixed top plate.In level height and inner support beam bottom residing for fixed top plate
Level height it is identical when, the upper surface of fixed top plate is supporting plane, for the stability of increase inner support beam bottom, solid
The upper surface for determining top plate opens up helicla flute, and the groove width of the helicla flute is incremented by from inside to outside by the direction of its helical trajectory, is entered
And increase the friction between two contact surfaces, to avoid the inner support beam in cutting process from being subjected to displacement.
The upper surface and the upper surface of the supporting station of the fixed top plate maintain an equal level.Further, the upper table of fixed top plate
Face is identical with the level height residing for the upper surface of supporting station so that in upper level and the inner support beam bottom of supporting station
When highly identical, two different supporting surfaces are formed in the bottom part down of inner support beam, and utilize fixed top plate and spring
Between interaction, can stress caused by cutting be offset to a certain extent, and then increase inner support beam
Stability of strutting system.
The axial length of the fixed top plate is the 1/5~1/2 of the circular trough axial depth.Further, fixed top
Relation between the axial length and circular trough axial depth of plate, the height for directly affecting the supporting surface that lifting top plate is formed become
Change scope, and the axial length of fixed top plate is arranged in the range of the 1/5~1/2 of circular trough axial depth so that lifting top
Plate possesses enough rising spaces, when the axial length of fixed top plate is less than the 1/5 of circular trough axial depth, fixed top plate
Support strength is relatively low, is easily deformed upon in cutting process, then reduces its service life；When the axial direction of fixed top plate
When length is more than the 1/2 of circular trough axial depth, it is smaller to lift the lifting height scope of top plate, can not make up inner support beam bottom
Difference in height between supporting surface, i.e., it can not realize the normal cutting of pair of interior support beam.
Multiple sleeves surround a circle, and each described sleeve is located on the Along ent of circle respectively.Preferably,
Multiple sleeves are evenly distributed on same circumference so that the elastic force distribution that spring is formed to lifting top plate is relatively uniform, i.e.,
Produce how stress direction changes in cutting process, can be eliminated by caused elastic force during spring-return deformation, and then
Maintain stability of the inner support beam in cutting process.
The length of the guide rail is identical with the axial length of the groove.Preferably, guide rail can not only be in vertical side
Guide effect is formed to lifting top plate upwards, it is ensured that its normal lifting, guide rail can also enter to lifting top plate in the horizontal direction
Row limits, that is, avoids lifting top plate generation circular runout, when the length of guide rail is identical with the axial length of the groove, guide rail
Can be acted on maintain lifting top plate whole lifting process in, i.e., lifting top plate rise extreme position to its decline
Extreme position in the range of, with groove axial length identical guide rail be able to ensure that lifting top plate stability.
The present invention compared with prior art, has the following advantages and advantages：
1st, the present invention is used for the support component that internal support of foundation pit beam is removed, and in cutting process, lifts top plate and supporting station
An entirety is formed, is limited respectively by groove and screw rod, compared with traditional lumps of wood plug, lifting top plate will not occur any
When offseting, and producing certain effect stress when cut, the spring under compressive state equally can be lifting top plate all the time
Stress buffer is provided, and then ensures to lift the stability of top plate in the vertical direction so that inner support beam is carried out along cutting seam
Multistage size identical segment is formed after cutting, to facilitate the lifting in later stage to transport, while ensures workmen in cutting process
Safety, reduce the occurrence probability of security incident；
2nd, the present invention is used for the support component that internal support of foundation pit beam is removed, in level height and inner support residing for fixed top plate
When the level height of beam bottom is identical, the upper surface of fixed top plate is supporting plane, for the stabilization of increase inner support beam bottom
Property, open up helicla flute in the upper surface of fixed top plate, and the groove width of the helicla flute by its helical trajectory direction from inside to outside
It is incremented by, and then increases the friction between two contact surfaces, avoids the inner support beam in cutting process from being subjected to displacement；
3rd, the present invention is used for the support component that internal support of foundation pit beam is removed, and multiple sleeves are evenly distributed on same circumference
On so that the elastic force distribution that spring is formed to lifting top plate is relatively uniform, i.e., produces how stress direction becomes in cutting process
Change, can be eliminated by caused elastic force during spring-return deformation, and then maintain inner support beam steady in cutting process
It is qualitative.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, forms one of the application
Point, do not form the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of supporting station；
Fig. 3 is the structural representation of fixed top plate；
Fig. 4 is the structural representation of lifting top plate.
Mark and corresponding parts title in accompanying drawing：
1- supporting stations, 2- legs, 3- cutting seam, 4- inner support beams, 5- guide rails, 6- lifted top plate, 7- sleeves, 8- springs,
9- screw rods, 10- fix top plate, 11- circular troughs, 12- helicla flutes, 13- openings.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment and accompanying drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1
As shown in figures 1-4, the present embodiment includes supporting station 1 and is arranged on multiple legs 2 of the bottom of supporting station 1, in institute
State and multiple grooves are provided with the upper surface of supporting station 1, the activity of screw rod 9 enters in groove after running through the lower surface of supporting station 1, in spiral shell
The upper end end of bar 9 is provided with the fixation top plate 10 of circle, and matched lifting top plate 6 is provided with the outer circle wall of screw rod 9, is carried
Rise top plate 6 to be placed in groove, the circular trough 11 coaxial with screw rod 9 is provided with lifting top plate 6 upper surface, the fixed top plate 10
External diameter is less than the internal diameter of the circular trough 11, and the axial depth of circular trough 11 is more than the axial length of fixed top plate 10, also wraps
Multiple sleeves 7 for being arranged on bottom portion of groove are included, one end of spring 8 is arranged on the bottom of sleeve 7, and the other end of spring 8 carries with described
The contact of the lower surface of top plate 6 is risen, and spring 8 is in compressive state all the time, is led along being axially provided with groove inner wall for the screw rod 9
Rail 5, and the opening 13 being engaged with guide rail 5 is provided with the lifting outer wall of top plate 6.For in the prior art, along inner support
When the cutting seam 3 of beam 4 proceeds by segmentation dismounting process, stress caused by inner support beam 4 and sawing device interaction is easy
Cause the skew of 4 non-cut-out of inner support beam, severe patient can cause inner support beam 4 to depart from from supporting plane, then increase
The occurrence probability of security incident；Also, traditional support platform uses the split heads cushion cap being welded by channel-section steel, in split heads cushion cap
When oneself height is inadequate, it is necessary on split heads cushion cap upper surface user's stopper, but produce when lumps of wood plug is easily cut
Vibration effect, produce skew after cause gap be present between split heads cushion cap and inner support beam 4, cause the main body of inner support beam 4
Part discontinuity equalization, and the breakaway poing of inner support beam 4 is unpredictable so that the security reliability of cleavable site is uncontrollable；
On the other hand, applicant with regard to it is above-mentioned in the prior art the defects of, design it is a kind of dedicated for inner support beam 4 cut support component, i.e.,
Including the supporting station 1 made of steel and leg 2, and multiple grooves are provided with the supporting plane on supporting station 1, screw rod 9
Lower end is connected with motor output end, and the upper end of screw rod 9 is connected with fixed top plate 10, and on the part of screw rod 9 in groove
Provided with the lifting top plate 6 coordinated with the screw thread of screw rod 9, the upper end of spring 8 under compressive state and the bottom of lifting top plate 6 all the time
Contact, i.e., when the height of supporting station 1 or the height of fixed top plate 10 identical with level height residing for the bottom surface of inner support beam 4,
Support is provided by the upper surface and the fixed pair of interior support beam 4 of top plate 10 of supporting station 1, when producing certain effect stress when cut,
The spring 8 of compression can provide an elastic force opposite with applied stress to lifting top plate 6, screw rod 9, i.e., can be by fixed top plate 10
And eliminated on supporting plane by applied stress, to ensure stability of the inner support beam 4 in cutting process；When supporting station 1
Height or the height of fixed top plate 10 be less than residing for the bottom surface of inner support beam 4 during level height, start motor so that screw rod 9
Start to rotate, and lift top plate 6 and cooperated with screw rod 9, and begun to ramp up under the guiding restriction effect of guide rail 5, and carrying
Rise in the uphill process of top plate 6, fixed top plate 10 remains stationary as, moved on circular trough 11 will fixed top plate 10 it is fully wrapped around, according to
Difference in height numerical value between fixed top plate 10 and the bottom of inner support beam 4, to determine to be lifted the amount of moving up of top plate 6, and when lifting top
When the upper surface of plate 6 contacts with the bottom of inner support beam 4, stop the work of motor, that is, realize the branch of the lifting pair of interior support beam 4 of top plate 6
Support, and in cutting process, lifting top plate 6 forms an entirety with supporting station 1, is limited respectively by groove and screw rod 9, with
Traditional lumps of wood plug is compared, and any skew will not occur for lifting top plate 6, and when producing certain effect stress when cut, all the time
Spring 8 under compressive state equally can be that lifting top plate 6 provides stress buffer, and then ensure to be lifted top plate 6 vertical
Stability on direction so that inner support beam 4 forms multistage size identical segment after being cut along cutting seam 3, with side
The lifting transhipment of phase after an action of the bowels, while ensure the safety of workmen in cutting process, reduce the occurrence probability of security incident.
The present embodiment is provided with helicla flute 12 in the upper surface of the fixed top plate 10.In level height residing for fixed top plate 10
When identical with the level height of the bottom of inner support beam 4, the upper surface of fixed top plate 10 is supporting plane, to increase inner support beam
The stability of 4 bottoms, helicla flute 12 is opened up in the upper surface of fixed top plate 10, and the groove width of the helicla flute 12 is by its spiral track
The direction of mark is incremented by from inside to outside, and then increases the friction between two contact surfaces, to avoid inner support beam 4 in cutting process
It is subjected to displacement.
Embodiment 2
As shown in figures 1-4, the upper surface and the upper surface of the supporting station 1 that top plate 10 is fixed described in the present embodiment are held
It is flat.Further, the upper surface of fixed top plate 10 is identical with the level height residing for the upper surface of supporting station 1 so that is supporting
When the upper level of platform 1 is identical with the height of the bottom of inner support beam 4, two are formed in the bottom part down of inner support beam 4
Different supporting surfaces, and using the interaction between fixed top plate 10 and spring 8, can be to a certain extent to being produced during cutting
Raw stress is offset, and then increases the stability of strutting system of inner support beam 4.
Further, the relation between the axial length of fixed top plate 10 and the axial depth of circular trough 11, directly affects and carries
The height change scope for the supporting surface that top plate 6 is formed is risen, and the axial length of fixed top plate 10 is arranged on the axle of circular trough 11
To in the range of the 1/5~1/2 of depth so that lifting top plate 6 possesses enough rising spaces, when the axial length of fixed top plate 10
Less than the axial depth of circular trough 11 1/5 when, the support strength of fixed top plate 10 is relatively low, easily occurs in cutting process
Deformation, then reduce its service life；When the axial length of fixed top plate 10 is more than the 1/2 of the axial depth of circular trough 11, carry
It is smaller to rise the lifting height scope of top plate 6, the difference in height between the bottom of inner support beam 4 and supporting surface can not be made up, i.e., can not be real
The normal cutting of existing pair of interior support beam 4.
Preferably, multiple sleeves 7 are evenly distributed on same circumference so that spring 8 is formed to lifting top plate 6
Elastic force distribution is relatively uniform, i.e., produces how stress direction changes in cutting process, produced when can reply deformation by spring 8
Raw elastic force is eliminated, and then maintains stability of the inner support beam 4 in cutting process.
Preferably, guide rail 5 can not only in the vertical direction to lifting top plate 6 formed guide effect, it is ensured that its is normal
Lifting, guide rail 5 can also be defined to lifting top plate 6 in the horizontal direction, that is, avoid lifting the generation circular runout of top plate 6,
When the length of guide rail 5 is identical with the axial length of the groove, guide rail 5, which can be acted on, maintains the whole of lifting top plate 6
In individual lifting process, i.e., in the range of the extreme position that the extreme position that rises in lifting top plate 6 declines to it, axially grown with groove
Degree identical guide rail 5 is able to ensure that the stability of lifting top plate 6.
Above-described embodiment, the purpose of the present invention, technical scheme and beneficial effect are carried out further
Describe in detail, should be understood that the embodiment that the foregoing is only the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc., all should include
Within protection scope of the present invention.
Claims (6)
1. the support component removed for internal support of foundation pit beam, including supporting station (1) and it is arranged on the more of supporting station (1) bottom
Individual leg (2), it is characterised in that：Multiple grooves are provided with the supporting station (1) upper surface, screw rod (9) activity is through described
Enter behind supporting station (1) lower surface in groove, the fixation top plate (10) of circle is installed in screw rod (9) upper end end, in screw rod
(9) outer circle wall is provided with matched lifting top plate (6), and lifting top plate (6) is placed in groove, on lifting top plate (6)
Surface is provided with the circular trough (11) coaxial with screw rod (9), and the external diameter of the fixed top plate (10) is less than the circular trough (11)
Internal diameter, and the axial depth of circular trough (11) is more than the axial length of fixed top plate (10), in addition to multiple it is arranged on groove-bottom
The sleeve (7) in portion, one end of spring (8) are arranged on sleeve (7) bottom, and the other end of spring (8) is lifted under top plate (6) with described
Surface contacts, and spring (8) is in compressive state all the time, and guide rail is provided with groove inner wall along the axial direction of the screw rod (9)
(5) it is provided with, and on described lifting top plate (6) outer wall the opening (13) being engaged with guide rail (5).
2. the support component according to claim 1 removed for internal support of foundation pit beam, it is characterised in that：In the fixation
The upper surface of top plate (10) is provided with helicla flute (12).
3. the support component according to claim 1 or 2 removed for internal support of foundation pit beam, it is characterised in that：It is described solid
The upper surface and the upper surface of the supporting station (1) for determining top plate (10) maintain an equal level.
4. the support component according to claim 3 removed for internal support of foundation pit beam, it is characterised in that：The fixed top
The axial length of plate (10) is the 1/5~1/2 of the circular trough (11) axial depth.
5. the support component according to claim 1 removed for internal support of foundation pit beam, it is characterised in that：Multiple sets
Cylinder (7) surrounds a circle, and each described sleeve (7) is located on the Along ent of circle respectively.
6. the support component according to claim 1 removed for internal support of foundation pit beam, it is characterised in that：The guide rail
(5) length is identical with the axial length of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873982.9A CN107476317B (en) | 2017-09-25 | 2017-09-25 | The support component removed for internal support of foundation pit beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710873982.9A CN107476317B (en) | 2017-09-25 | 2017-09-25 | The support component removed for internal support of foundation pit beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107476317A true CN107476317A (en) | 2017-12-15 |
| CN107476317B CN107476317B (en) | 2019-08-30 |
Family
ID=60587343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710873982.9A Active CN107476317B (en) | 2017-09-25 | 2017-09-25 | The support component removed for internal support of foundation pit beam |
Country Status (1)
| Country | Link |
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| CN (1) | CN107476317B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519628A (en) * | 2020-03-17 | 2020-08-11 | 中国建筑第二工程局有限公司 | Forklift detachable heightening support for inner support dismantling |
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| CN104404968A (en) * | 2014-12-10 | 2015-03-11 | 中建三局第一建设工程有限责任公司 | Foundation pit inner support beam dismantling device and foundation pit inner support beam dismantling method |
| CN204413441U (en) * | 2015-01-27 | 2015-06-24 | 重庆百力新机电有限公司 | Moveable welding gun supporting mechanism |
| CN106836237A (en) * | 2017-03-01 | 2017-06-13 | 上海建工五建集团有限公司 | A kind of supporting construction and its construction method for removing internal support of foundation pit beam |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB941934A (en) * | 1961-04-22 | 1963-11-20 | Holtsch Peter Ernst | Smokers ash tray |
| CN201079905Y (en) * | 2006-12-08 | 2008-07-02 | 天水星火机床有限责任公司 | Automatic elevating screw bracket |
| CN201818043U (en) * | 2010-10-15 | 2011-05-04 | 张启贵 | Top-lifting type internal supporting device for concrete construction |
| JP2012099344A (en) * | 2010-11-02 | 2012-05-24 | Stanley Electric Co Ltd | Lighting fixture for vehicle and its support structure |
| CN104404968A (en) * | 2014-12-10 | 2015-03-11 | 中建三局第一建设工程有限责任公司 | Foundation pit inner support beam dismantling device and foundation pit inner support beam dismantling method |
| CN204413441U (en) * | 2015-01-27 | 2015-06-24 | 重庆百力新机电有限公司 | Moveable welding gun supporting mechanism |
| CN106836237A (en) * | 2017-03-01 | 2017-06-13 | 上海建工五建集团有限公司 | A kind of supporting construction and its construction method for removing internal support of foundation pit beam |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519628A (en) * | 2020-03-17 | 2020-08-11 | 中国建筑第二工程局有限公司 | Forklift detachable heightening support for inner support dismantling |
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| Publication number | Publication date |
|---|---|
| CN107476317B (en) | 2019-08-30 |
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