CN110510496A - A kind of pre-buried lifting part of precast stair - Google Patents
A kind of pre-buried lifting part of precast stair Download PDFInfo
- Publication number
- CN110510496A CN110510496A CN201910766976.2A CN201910766976A CN110510496A CN 110510496 A CN110510496 A CN 110510496A CN 201910766976 A CN201910766976 A CN 201910766976A CN 110510496 A CN110510496 A CN 110510496A
- Authority
- CN
- China
- Prior art keywords
- built
- pipe
- precast stair
- lifting part
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/62—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled
- B66C1/66—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
- E04F11/02—Stairways; Layouts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Steps, Ramps, And Handrails (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The present invention relates to prepackage stair to lift field, specifically disclose a kind of pre-buried lifting part of precast stair, including the flexible hanging component being arranged among fastener inserts and fastener inserts, the fastener inserts are made of the end cap that built-in pipe is spirally connected with built-in pipe lower end, the centre of the built-in pipe is equipped with cushion chamber, pilot hole is offered at the top of from the upper end of cushion chamber to built-in pipe, the lower end of the cushion chamber offers end cap mounting groove, and the flexible hanging component is made of cushion collar, bearing ring, the reset spring being arranged on telescopic head and telescopic head outer circle；Make cushion chamber elastic telescopic of the telescopic head among built-in pipe by reset spring, the side that this concealed pre-buried structure avoids telescopic head is contacted with external dust, therefore can guarantee the normal handling of precast stair；Make effectively to be supported in the embedded hole of precast stair by built-in pipe, therefore improves the structural strength at the pre-buried position of pre-buried lifting part.
Description
Technical field
The present invention relates to precast stair hoisting technology field, specially a kind of pre-buried lifting part of precast stair.
Background technique
Prefabrication refers to that some or all of building component is completed in element precast plant produced, then leads to
It crosses corresponding means of transportation and transports to construction site, component is assembled using reliable mounting means and installation machinery, is become
The construction mode for having the building using function.Compared with site operation, it is prefabricated assembled construction have it is easy for construction,
The advantages that project progress is fast, quality small to surrounding environment influence and building element is easy to get guarantee, precast stair belongs to pre-
The common building structure component of one of assembled architecture processed, compared to traditional cast-in-site stair, precast stair has peace
Dress speed it is fast, it is water-saving, save land, reduces noise, save material many advantages, such as, the lifting of precast stair is generally by two on stair bottom
Screw thread lifting eye is preset on the step surface at end, or presets screw thread lifting eye in the two sides of stair, although this this lifting mode exists
Solve the problems, such as the lifting of precast stair to a certain extent, but it there are still following drawbacks during actual use:
1. sundries is easily accessible in screw thread lifting eye causes lifting eye to be blocked during transport or stacking, into
And influence the handling of prepackage stair；
2. presetting screw thread lifting eye in prepackage stair, the stair intensity of corresponding position can be reduced；
3. optional equipment lifting bolt is needed just to be able to satisfy lifting condition in handling, therefore improve the complicated journey of lifting
Degree.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of pre-buried lifting part of precast stair
Problem.
To achieve the above object, the invention provides the following technical scheme: a kind of pre-buried lifting part of precast stair, including it is pre-buried
The flexible hanging component being arranged among component and fastener inserts, the fastener inserts are spirally connected by built-in pipe and built-in pipe lower end
End cap is constituted, and the centre of the built-in pipe is equipped with cushion chamber, from the upper end of cushion chamber to built-in pipe at the top of offer pilot hole,
The lower end of the cushion chamber offers end cap mounting groove, and the flexible hanging component on telescopic head and telescopic head outer circle by being arranged
Cushion collar, bearing ring, reset spring constitute, the centre of the telescopic head is equipped with guide post, and fixes in the upper end of guide post
It is connected with hoisting head, and in the suspension hook that has been hinged at of hoisting head, the lower end of the guide post is fixedly connected by connecting bolt
There is spacing head.
Preferably, the outer circle of the built-in pipe be equipped with it is axial uniformly arrange it is anti-be disengaged from the groove I, in the outer circle of the built-in pipe
Anti- II is disengaged from the groove equipped with what circumferential direction uniformly arranged.
Preferably, the centre of the hoisting head offers the hole for hoist of uniformly distributed arrangement, and the side of hole for hoist and
Offer the suspension hook mounting groove of trough body structure in the outer circle of hoisting head, and be inserted with and suspension hook the side of suspension hook mounting groove is fixed
Be nested the articulated shaft matched.
Preferably, the top circumferential direction of the hoisting head offers the pull ring slot of trough body structure, and opens in the end of pull ring slot
The pull ring with jointing holes phase inserting is equipped with equipped with jointing holes, in the pull ring slot.
Preferably, the pull ring is circular ring type structure, and is fixedly connected at the both ends of pull ring and mutually inserts with jointing holes
That matches patches bar.
Preferably, the centre of the guide post lower end surface offers the guide groove of conical surface trough body structure, in the spacing head
The centre of end face is equipped with the guide cone matched that is nested with guide groove.
Preferably, circumferential direction offers cushion chamber in the wall body of the cushion collar, and offers ring on the outer wall of cushion collar
To the gas port of uniformly distributed arrangement, the cushion chamber is connected with gas port by connecting hole.
Preferably, the end cap is made of the cover board of disc plate structure and latch segment set by cover board lower end, and is covered
Plate and end cap mounting groove bolt, be positive on the outside of the latch segment hexagonal structure, and offers just in the centre of latch segment
The groove body of hexagonal structure.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention setting rationally, functional, have with
Lower advantage:
1. making cushion chamber elastic telescopic of the telescopic head among built-in pipe by reset spring, by telescopic head when needing to lift by crane
It pulls out and uses out of built-in pipe, telescopic head is retracted into original position when not needing lifting, and this concealed pre-buried structure avoids
The side of telescopic head is contacted with external dust, therefore can guarantee the normal handling of precast stair；
2. making effectively to be supported in the embedded hole of precast stair by built-in pipe, therefore precast stair will not be reduced
Intensity can also improve the structural strength at the pre-buried position of pre-buried lifting part on the contrary；
3. offering hole for hoist in the side of hoisting head, and hingedly it is equipped in the suspension hook mounting groove of hoisting head side
Suspension hook wire rope handling can lift when use in hole for hoist, suspension hook can also be used and directly lift, the present invention meets two kinds of lifting items simultaneously
Part keeps the available lifting mode of entire precast stair more flexible.
Detailed description of the invention
Fig. 1 is pre-buried structure schematic diagram of the present invention in precast stair；
Fig. 2 is structure of the invention axis side view；
Fig. 3 is structure of the invention axis side half sectional view；
Fig. 4 is the half-sectional topology view in fastener inserts axis side；
Fig. 5 is the flexible half-sectional topology view in hanging component axis side；
Fig. 6 is partial structurtes enlarged diagram at A in Fig. 5；
Fig. 7 is partial structurtes enlarged diagram at B in Fig. 5；
Fig. 8 is flexible hanging component axis side explosive view；
Fig. 9 is partial structurtes enlarged diagram at C in Fig. 8.
In figure: 1, fastener inserts；2, stretch hanging component；3, built-in pipe；4, end cap；5, telescopic head；6, cushion collar；7, it holds
Pressure ring；8, reset spring；9, pull ring；10, suspension hook；301, cushion chamber；302, pilot hole；303, end cap mounting groove；304, anticreep
Slot I；305, prevent being disengaged from the groove II；401, cover board；402, latch segment；501, guide post；502, hoisting head；503, spacing head；504, even
Connecting bolt；505, guide groove；506, guide cone；507, hole for hoist；508, pull ring slot；509, jointing holes；510, suspension hook mounting groove；
511, articulated shaft；601, cushion chamber；602, gas port；603, connecting hole；901, bar is patched.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 to Fig. 9 is please referred to, the present invention provides a kind of technical solution: a kind of pre-buried lifting part of precast stair, including it is pre-buried
The flexible hanging component 2 being arranged among component 1 and fastener inserts 1, fastener inserts 1 are spirally connected by built-in pipe 3 and 3 lower end of built-in pipe
End cap 4 constitute, the centre of built-in pipe 3 is equipped with cushion chamber 301, is offered from the upper end of cushion chamber 301 to the top of built-in pipe 3
Pilot hole 302, the lower end of cushion chamber 301 offer end cap mounting groove 303, and the hanging component 2 that stretches is by telescopic head 5 and telescopic head 5
Cushion collar 6, bearing ring 7, the reset spring 8 being arranged in outer circle are constituted, and the centre of telescopic head 5 is equipped with guide post 501, and is leading
It is fixedly connected with hoisting head 502 to the upper end of column 501, and has been hinged at suspension hook 10 in hoisting head 502, guide post 501
Lower end is fixedly connected with spacing head 503 by connecting bolt 504, wherein built-in pipe 3, end cap 4, telescopic head 5, pull ring 9, suspension hook
10 can be used stainless steel material production, make entire pre-buried hanging component be not easy to corrode, improve its service life.
In Fig. 4: be equipped in the outer circle of built-in pipe 3 it is axial uniformly arrange it is anti-be disengaged from the groove I 304, in the outer circle of built-in pipe 3
Equipped with circumferential direction uniformly arrange it is anti-be disengaged from the groove II 305, make built-in pipe 3 is whole axially to be limited in embedded hole by the anti-I 304 that is disengaged from the groove
Position makes built-in pipe 3 integrally be rotated limit in embedded hole, and then consolidate built-in pipe 3 can firmly by the anti-II 305 that is disengaged from the groove
It is scheduled in embedded hole and does not fall out.
In Fig. 5: the centre of hoisting head 502 offers the hole for hoist 507 of uniformly distributed arrangement, and in the side of hole for hoist 507
And the suspension hook mounting groove 510 of trough body structure is offered in the outer circle of hoisting head 502, and in the side of suspension hook mounting groove 510
Fixation is inserted with the articulated shaft 511 for being nested and matching with suspension hook 10, and suspension hook 10 can rotate into suspension hook mounting groove 510 around articulated shaft 511
It produces, when lifting, it is fixed across hole for hoist 507 to can be used rope, can also produce suspension hook 10 out of suspension hook mounting groove 510, directly
It connects and is socketed in rope on the drag hook of 10 side of suspension hook, both lifting modes keep the lifting of entire pre-buried lifting part cleverer
It is living.
In Fig. 5: the top circumferential direction of hoisting head 502 offers the pull ring slot 508 of trough body structure, and in pull ring slot 508
End offers jointing holes 509, the pull ring 9 with 509 phase inserting of jointing holes is equipped in pull ring slot 508, wherein jointing holes 509
Number is two, and jointing holes 509 are Heterogeneous Permutation on the end face of pull ring slot 508, and this structure makes to patch in jointing holes 509
The pull ring 9 of side forms resilient detents structure.
In Fig. 9: pull ring 9 is circular ring type structure, and is fixedly connected with and 509 phase inserting of jointing holes at the both ends of pull ring 9
Patch bar 901, when pull ring 9 is installed in pull ring slot 508, first pull ring 9 is strutted, makes to patch bar 901 respectively to being inserted in pull ring
In the jointing holes 509 at 508 both ends of slot.
In Fig. 6: the centre of 501 lower end surface of guide post offers the guide groove 505 of conical surface trough body structure, spacing head 503
The centre of upper surface is equipped with the guide cone 506 matched that is nested with guide groove 505, and this structure is convenient for spacing head 503 and guide post 501
Between butt junction location.
In Fig. 7: circumferential direction offers cushion chamber 601 in the wall body of cushion collar 6, and offers on the outer wall of cushion collar 6
The gas port 602 that uniformly arranges of circumferential direction, cushion chamber 601 are connected with gas port 602 by connecting hole 603, when lift by crane pulling force compared with
When big, hoisting head 502 can be stretched out energetically in the end of built-in pipe 3, and spacing head 503 has cushion collar 6 one big at this time
Pressure, when cushion collar 6 is by big pressure, cushion chamber 601 is compressed inwardly, and 601 interior air-flow of cushion chamber passes through connecting hole
603 are discharged rapidly to gas port 602, and the gas being discharged in gas port 602 can be stored in the cavity of cushion chamber 301, when slow
After the pressure of 6 end faces of punching set becomes smaller, cushion chamber 601 can automatically restore to original state, and during this period, 6 relative telescopic head 5 of cushion collar rises
To a good buffer function.
In Fig. 4: 402 structure of latch segment as set by the cover board 401 of disc plate structure and 401 lower end of cover board of end cap 4
At and cover board 401 and 303 bolt of end cap mounting groove, the outside of latch segment 402 are positive hexagonal structure, and in latch segment 402
Centre offer the groove body of orthohexagonal structure, wherein to cushion chamber 301 after cover board 401 and 303 bolt of end cap mounting groove
Cavity play the role of a good sealing protection, and the inside and outside hexagonal structure that is positive of latch segment 402 conveniently passes through spanner
End cap 4 and built-in pipe 3 are fixed together.
Working principle: guide post 501 is first passed through pilot hole 302 and is inserted into buffering by entire pre-buried lifting part in assembling
In chamber 301, then reset spring 8, bearing ring 7 and cushion collar 6 are successively nested into the outer circle of guide post 501, by spacing head
The guide cone 506 of 503 upper surface is imported into the guide groove 505 of the lower end of guide post 501, then passes through connection bolt 504
Spacing head 503 is tightened together with guide post 501, end cap 4 is imported into the groove body of end cap mounting groove 303, passes through spanner
The latch segment 402 of 401 lower end of cover board is pulled to revolve cover board 401 and end cap mounting groove 303 and fixed, when suspension hook 10 is installed, first by
The outer circle of hoisting head 502 spooling hole into suspension hook mounting groove 510, and suspension hook 10 is put into suspension hook mounting groove 510, make suspension hook
The mounting hole of 10 sides keeps coaxial with this axis hole, then will be inserted into suspension hook mounting groove 510 in articulated shaft 511 thus axis hole
And articulated shaft 511 and the mounting hole of 10 side of suspension hook is made mutually to wear and match, when pull ring 9 is installed, first the both ends of pull ring 9 are strutted, make to connect
Inserted link 901 is inserted into out of 508 both ends of pull ring slot jointing holes 509 respectively, and when use transfers to pull ring 9 out of pull ring slot 508, so
Telescopic head 5 is taken out of by drawing pull ring 9 out of built-in pipe 3 afterwards, pull ring 9 is turned to the groove body of pull ring slot 508 when not in use
It is interior；
When entire pre-buried lifting part is pre-buried in precast stair, pay attention to retracting to the hoisting head 502 of 5 upper end of telescopic head pre-
The top of pipe laying 3, the first filled and process in suspension hook mounting groove 510 and hole for hoist 507, and one is wrapped up in the outside of hoisting head 502
Layer release film, prevents concrete and the outer wall of hoisting head 502 from fitting, and entire pre-buried lifting part is then embedded in precast stair
The pre-buried lifting part of precast stair two sides is set to keep coaxial in the wall body of two sides, when paying attention to pre-buried as far as possible, it is pre-buried in this way to facilitate
Stationarity of the precast stair in lifting is kept, it, will after pre-buried lifting part is pre-buried, and after the completion of precast stair is prefabricated
Pull ring 9 is transferred to out of pull ring slot 508, then pulls pull ring 9 that telescopic head 5 is pulled out a distance from the end face of built-in pipe 3, simultaneously
Deviate from hoisting head 502 out of, precast stair embedded hole, the release film in 502 outside of hoisting head is removed at this time, then will be hung
The foam filled in hook mounting groove 510 and hole for hoist 507 is transferred to, after unclamping pull ring 9, reply of the hoisting head 502 in reset spring 8
The top of built-in pipe 3 is retracted under effect；
When handling, first pull ring 9 is transferred to out of pull ring slot 508, pulls pull ring 9 and drive telescopic head 5 by hoisting head 502 from pre-
A distance is pulled out in the pre-manufactured holes of stair two sides processed, then will lifting rope and 507 phase of hole for hoist wear with fix or with hang
The drag hook of 10 side of hook is sleeved and fixed, and is then flipped back to pull ring 9 in the pull ring slot 508 at 502 top of hoisting head, precast stair
After two sides and totally four pre-buried lifting parts on precast stair bottom at the stepped locations of both ends complete lifting fixation, Fang Keqi
It hangs, after the completion of handling, lifting rope is removed from pre-buried lifting part one by one, at this time elasticity of the hoisting head 502 in reset spring 8
The top of built-in pipe 3 is retracted under restoring force effect, while hoisting head 502 retracts in embedded hole, pre-buried lifting part is whole at this time
Body is respectively positioned in precast stair and has no any exposed part on the outside of precast stair, thus do not influence precast stair into
The installation of one step.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of pre-buried lifting part of precast stair, including the flexible lifting being arranged among fastener inserts (1) and fastener inserts (1)
Component (2), it is characterised in that: end cap (4) structure that the fastener inserts (1) are spirally connected by built-in pipe (3) and built-in pipe (3) lower end
Be equipped with cushion chamber (301) at the centre of, the built-in pipe (3), from the upper end of cushion chamber (301) to built-in pipe (3) at the top of open
Equipped with pilot hole (302), the lower end of the cushion chamber (301) is offered end cap mounting groove (303), the flexible hanging component
(2) it is made of cushion collar (6), bearing ring (7), the reset spring (8) being arranged on telescopic head (5) and telescopic head (5) outer circle, institute
The centre for stating telescopic head (5) is equipped with guide post (501), and is fixedly connected with hoisting head (502) in the upper end of guide post (501),
And being hinged at suspension hook (10) in hoisting head (502), the lower end of the guide post (501) are solid by connection bolt (504)
Surely spacing head (503) are connected with.
2. the pre-buried lifting part of a kind of precast stair according to claim 1, it is characterised in that: outside the built-in pipe (3)
Circle be equipped with it is axial uniformly arrange it is anti-be disengaged from the groove I (304), the outer circle of the built-in pipe (3) be equipped with it is circumferential uniformly arrange it is anti-
It is disengaged from the groove II (305).
3. the pre-buried lifting part of a kind of precast stair according to claim 1, it is characterised in that: the hoisting head (502)
Centre offers the hole for hoist (507) of uniformly distributed arrangement, and in the side of hole for hoist (507) and outer circle in hoisting head (502)
On offer the suspension hook mounting groove (510) of trough body structure, and be inserted with and suspension hook the side of suspension hook mounting groove (510) is fixed
(10) be nested the articulated shaft (511) matched.
4. the pre-buried lifting part of a kind of precast stair according to claim 1, it is characterised in that: the hoisting head (502)
Top circumferential direction offers the pull ring slot (508) of trough body structure, and offers jointing holes (509), institute in the end of pull ring slot (508)
State the pull ring (9) being equipped in pull ring slot (508) with jointing holes (509) phase inserting.
5. the pre-buried lifting part of a kind of precast stair according to claim 4, it is characterised in that: the pull ring (9) is
Circular ring type structure, and be fixedly connected at the both ends of pull ring (9) and patch bar (901) with jointing holes (509) phase inserting.
6. the pre-buried lifting part of a kind of precast stair according to claim 1, it is characterised in that: under the guide post (501)
The centre of end face offers the guide groove (505) of conical surface trough body structure, and the centre of spacing head (503) upper surface is equipped with and leads
Be nested the guide cone (506) matched to slot (505).
7. the pre-buried lifting part of a kind of precast stair according to claim 1, it is characterised in that: the wall of the cushion collar (6)
Internal circumferential direction offers cushion chamber (601), and the circumferential gas port uniformly arranged is offered on the outer wall of cushion collar (6)
(602), the cushion chamber (601) is connected with gas port (602) by connecting hole (603).
8. the pre-buried lifting part of a kind of precast stair according to claim 1, it is characterised in that: the end cap (4) is by disk
Latch segment (402) set by the cover board (401) of shape plate structure and cover board (401) lower end is constituted, and cover board (401) and end cap are pacified
Tankage (303) bolt, be positive on the outside of the latch segment (402) hexagonal structure, and opens up in the centre of latch segment (402)
There is the groove body of orthohexagonal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766976.2A CN110510496B (en) | 2019-08-20 | 2019-08-20 | Pre-buried hoist and mount piece of prefabricated stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910766976.2A CN110510496B (en) | 2019-08-20 | 2019-08-20 | Pre-buried hoist and mount piece of prefabricated stair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110510496A true CN110510496A (en) | 2019-11-29 |
| CN110510496B CN110510496B (en) | 2020-11-10 |
Family
ID=68626680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910766976.2A Active CN110510496B (en) | 2019-08-20 | 2019-08-20 | Pre-buried hoist and mount piece of prefabricated stair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110510496B (en) |
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| CN111730737A (en) * | 2020-07-10 | 2020-10-02 | 浙江瑞青新型建材有限公司 | Embedded part and concrete prefabricated part |
| CN115110706A (en) * | 2022-07-11 | 2022-09-27 | 中建八局第一建设有限公司 | Prefabricated combined stair and construction method thereof |
| CN116891182A (en) * | 2023-09-11 | 2023-10-17 | 贵州乌江水电开发有限责任公司 | Hydropower station wind shield mounting structure |
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| CN205907926U (en) * | 2016-08-24 | 2017-01-25 | 四川省建筑设计研究院 | Telescopic prefabricated staircase hoist and mount built -in fitting device |
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| CN206466900U (en) * | 2017-02-20 | 2017-09-05 | 安徽江淮汽车集团股份有限公司 | Novel hoisting device |
| CN207812875U (en) * | 2018-01-25 | 2018-09-04 | 深圳机械院建筑设计有限公司 | Precast stair based on building industrialization |
| KR20190093264A (en) * | 2018-02-01 | 2019-08-09 | 주식회사 대동에스앤티 | Anchor Bolt System |
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| FR2377501A1 (en) * | 1977-01-12 | 1978-08-11 | Monfray Jean Yves | Anchorage for lifting gear on precast unit - has sprung pin received in socket with locking action by misalignment of projections and recesses |
| JPH09175773A (en) * | 1995-12-27 | 1997-07-08 | Fukoku Sekiyu Kk | Insert for side ditch block and lowering member |
| CN205907926U (en) * | 2016-08-24 | 2017-01-25 | 四川省建筑设计研究院 | Telescopic prefabricated staircase hoist and mount built -in fitting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111730737A (en) * | 2020-07-10 | 2020-10-02 | 浙江瑞青新型建材有限公司 | Embedded part and concrete prefabricated part |
| CN115110706A (en) * | 2022-07-11 | 2022-09-27 | 中建八局第一建设有限公司 | Prefabricated combined stair and construction method thereof |
| CN115110706B (en) * | 2022-07-11 | 2023-09-29 | 中建八局第一建设有限公司 | Prefabricated combined stair and construction method thereof |
| CN116891182A (en) * | 2023-09-11 | 2023-10-17 | 贵州乌江水电开发有限责任公司 | Hydropower station wind shield mounting structure |
| CN116891182B (en) * | 2023-09-11 | 2023-12-05 | 贵州乌江水电开发有限责任公司 | Hydropower station wind shield mounting structure |
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| Publication number | Publication date |
|---|---|
| CN110510496B (en) | 2020-11-10 |
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