CN109551617A - A kind of internal model demoulding structure for precast hollow pier - Google Patents
A kind of internal model demoulding structure for precast hollow pier Download PDFInfo
- Publication number
- CN109551617A CN109551617A CN201811565929.3A CN201811565929A CN109551617A CN 109551617 A CN109551617 A CN 109551617A CN 201811565929 A CN201811565929 A CN 201811565929A CN 109551617 A CN109551617 A CN 109551617A
- Authority
- CN
- China
- Prior art keywords
- template
- inside casing
- demoulding
- short
- internal model
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a kind of internal model demoulding structures for precast hollow pier, including inner template component, inner template component includes two long templates and two short templates, and the two sides of short template are connected with chamfering formwork, and long template and the mutually matched side of chamfering formwork are equipped with the bolt hole for splicing；Inner template component further includes inside casing, and inside casing is located at the center of inner template component, is respectively connected with telescopic device between inside casing and long template and inside casing and short template；Long template and short template are equipped with cavity backwards to a side surface of inside casing；It further include the demoulding channel to locate below ground level, demoulding the bottom of the channel is equipped with center balladeur train, and center balladeur train is passed through from inside casing and is slidably connected with inside casing formation；Hoist cable mechanism for slowly transferring inner template component to demoulding the bottom of the channel is installed on the balladeur train of center；Demoulding is equipped with hoisting apparatus in channel, for lifting center balladeur train.The present invention can start demoulding from below, have the characteristics that efficient, safety.
Description
Technical field
The present invention relates to precast hollow pier manufacturing fields, more particularly, to a kind of internal model demoulding knot for precast hollow pier
Structure.
Background technique
Hollow pier stud is the pier type often selected in bridge engineering for sea-crossing, and general merogenesis height is all at 10 meters or more, highest
Up to 50 meters, segmentation prefabricating height is also close to 20 meters.Work progress generally include installation bed die, moulding bed, internal model, assembling reinforcement,
External mold, concreting etc. are installed.
Currently, existing precast hollow pier stud internal model design scheme is generally, single scattered spelling is scattered to tear form open.When installation, first
The spelling internal model on bed die is connected by screw bolts between template, is then connected and fixed again with bed die centre cross member, then binds steel
Muscle, installation external mold.The connection bolt between template is first unclamped after pouring, and inner template block-by-block is then hung out into pier stud inner cavity,
Until all inner templates are removed.
Using existing aforesaid way, require sequentially to hang internal model block-by-block from inner cavity is suitable for reading when removing internal model every time
Out, form removable operating personnel is located at below lifting template, and there are severe compromises, do not meet security regulations.In addition, every time
It requires frequently to use lifting appliance when removing internal model, demolishing process takes a long time, and efficiency is lower, insufficient in interior template number
When, next pier stud usually needs to use the inner template of a pier stud, and the demoulding mode so taken a long time will have a direct impact on
To project progress.
Summary of the invention
The object of the present invention is to provide a kind of internal model demoulding structures for precast hollow pier, can start demoulding from below,
Have the characteristics that safe and efficient.
Above-mentioned purpose of the invention has the technical scheme that a kind of internal model for precast hollow pier
Demoulding structure, including inner template component, the inner template component include two long templates and two short templates, the two sides of short template
It is connected with chamfering formwork, two long templates, two short templates and four chamfering formworks enclose and constitute the interior of hollow pier stud
Template；The long template and the mutually matched side of chamfering formwork are equipped with the bolt hole for splicing；The inner template component is also
Including inside casing, the inside casing is located at the center of inner template component, between the inside casing and long template and inside casing and short template
It is connected with telescopic device；The long template and short template are equipped with cavity backwards to a side surface of inside casing；It further include being located at ground
Demoulding channel below, described demoulding the bottom of the channel are equipped with center balladeur train, and the center balladeur train extends upwardly to the top
More than inner template component, the center balladeur train is passed through from inside casing and is slidably connected with inside casing formation；Pacify on the center balladeur train
Equipped with the hoist cable mechanism for slowly transferring inner template component to demoulding the bottom of the channel；Refitting has been installed in the demoulding channel
It sets, for lifting center balladeur train.
By using above-mentioned technical proposal, in inner template installation, center balladeur train is lifted into demoulding the bottom of the channel and consolidated
It is fixed, then the moulding bed and inner template of hollow pier are installed.Inner template component is had the advantage that using the inner template component of this programme
Long template, short template, chamfering formwork pass through telescopic device and connect with inside casing, in a pre-installation only need to be by long template and short template tune
It is whole in place, long template and chamfering formwork has been bolted, then entire inner template component is sling, center is placed on by inside casing
It on balladeur train, then slides into bottom and can be put in place, next inner template component is superimposed one by one, is installed more laborsaving.It is dismantling
When inner template, first long template need to only be taken in inside casing side by telescopic device, then by telescopic device that short template is inside
Frame side income so that the space hold of entire inner template component greatly reduces, then is delayed inner template component by hoist cable mechanism
Slow decentralization is reduced since inner template component feature space occupies, and inner template component passes through what demoulding channel was connect with hollow pier stud
It is open and transfers to the bottom of center balladeur train.It, will by hoisting apparatus when interior template component reaches the bottom of center balladeur train fastly
Center balladeur train is lifted up, and inner template component may make to drop down onto demoulding the bottom of the channel completely, at this time staff can directly by
Inner template component entirely passes through demoulding channel and transfers out.When using program demoulding, the body of inner template component is greatly reduced
Product, the dismounting of inner template of being more convenient for component.And it due to being equipped with cavity in long template and short template, is poured in hollow pier stud
When, concrete, which injects in cavity, forms concrete block, so that even if the inner template component of lower section is first removed, the inside story plate of top
Component still by the fixed function of the concrete block, will not be generated and be fallen, improve the safety of use.By first by lower section
Inner template component first remove so that lower side space substantially increases, staff's operation of being more convenient for.
The present invention is further arranged to: described demoulding the bottom of the channel is provided with cart.
By using above-mentioned technical proposal, when center balladeur train is lifted, cart can be pushed to center balladeur train just under
Side, transfers inner template component just to cart, the dismounting of inner template of being more convenient for component.
The present invention is further arranged to: the section of the cavity is rectangle.
By using above-mentioned technical proposal, corresponding molding concrete block is rectangular, the fit shapes, so that cavity and mixed
It will not skid between solidifying soil block, fixation is reliable.
The present invention is further arranged to: the cavity is welded by steel plate.
By using above-mentioned technical proposal, cavity is welded by steel plate, and intensity is big, is hardly damaged.
The present invention is further arranged to: the hoisting apparatus is the hydraulic press equipped with mechanical grip.
By using above-mentioned technical proposal, mechanical folder is driven by mechanical grip Clamping Center balladeur train, then by hydraulic press
Pawl rises, and center balladeur train is stablized and is moved up, and since the inside casing of the inner template component of top is adapted to center balladeur train,
It can also play the role of centralized positioning.
The present invention is further arranged to: the telescopic device include tool internal thread turning set and with rotation external threading
The mandril of connection, the mandrel ends are connected with corresponding long template or short template；The turning set and inside casing rotation connect.
By using above-mentioned technical proposal, since turning set and inside casing are rotation connection, when rotary motion covers, turning set is not
Generate axial movement so that mandril generate axial displacement, before inner template component is installed, press corresponding long template or
The position of corresponding long template or short template relative to inside casing is adjusted in short template, then rotary motion set；In concreting process
In, it since turning set is to be threadedly coupled with mandril, can not be axially compressed, therefore there is preferable resistance to stress ability；It is dismantling
When inner template component, the bolt between long template and chamfering formwork is first removed, since inside casing is limited by center balladeur train, only needs negative side
To rotation turning set, corresponding long template or short template are just to side movement, long template of being more convenient for or short template and coagulation where inside casing
Soil separation.
The present invention is further arranged to: the outer wall of the inside casing is equipped with mounting base, and mounting base is equipped with rotation slot, the rotation
Limit convex edge is equipped at the notch of slot, the turning set bottom is equipped with swivel becket, and the swivel becket rotation is connected to rotation slot.
By using above-mentioned technical proposal, rotation slot and swivel becket cooperatively form rotation connection, limit convex along then for pair
Swivel becket is stopped, so that the turning set can not be axially disengaging rotation slot.
The present invention is further arranged to: telescopic device there are two being all connected between each long template or short template and outline border.
By using above-mentioned technical proposal, the bonding strength between inside casing and corresponding long template or short template can be improved.
The present invention is further arranged to: being fixedly connected with bearing diagonal between the short template and chamfering formwork.
By using above-mentioned technical proposal, the resistance to stress ability of chamfering formwork can be effectively improved.
In conclusion advantageous effects of the invention are as follows:
1, inner template is facilitated to install；
2, it can be achieved to remove inner template component from below；
3, when dismantling inner template component from below, top inner template component is fixed, highly-safe；
4, facilitate inner template component to dismantle, operate convenient and efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inner template component in the present embodiment；
Fig. 2 is structural schematic diagram when inner template component is in contraction state in the present embodiment；
Fig. 3 is the enlarged diagram of part A in Fig. 2；
Fig. 4 is the schematic cross-section of inner template component in the present embodiment；
Fig. 5 is the working state schematic representation one of the present embodiment；
Fig. 6 is the working state schematic representation two of the present embodiment.
Description of symbols: 1, inner template component；2, long template；3, short template；4, chamfering formwork；5, inside casing；6, it stretches
Device；7, cavity；8, demoulding channel；9, center balladeur train；10, hoist cable mechanism；11, hoisting apparatus；12, cart；13, turning set；
14, mandril；15, mounting base；16, rotation slot；17, limit convex edge；18, swivel becket；19, bearing diagonal.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment:
A kind of internal model demoulding structure for precast hollow pier, including inner template component, the structure of inner template component such as Fig. 1-2 institute
Show, including two long templates and two short templates, the two sides of short template are connected with chamfering formwork, short template and chamfering formwork
Between be fixedly connected with bearing diagonal.Two long templates, two short templates and four chamfering formworks enclose and constitute hollow pier stud
Inner template；The long template and the mutually matched side of chamfering formwork are equipped with the bolt hole (not shown) for splicing；
As shown in Figure 1, long template and short template are equipped with cavity backwards to a side surface of inside casing；The cavity is the chamber of a rectangle
Body, cavity are formed by welding using steel plate.The cavity is used in concreting, so that forming coagulation in concrete injection cavity
Soil block.
As shown in Fig. 2, the inner template component further includes inside casing, inside casing is located at the center of inner template component, inside casing and long mould
Telescopic device is respectively connected between plate and inside casing and short template；Telescopic device can be one or more.
As Figure 2-3, which includes the top for having internal thread turning set and being threadedly coupled with turning set
Bar, mandrel ends are fixedly connected with corresponding long template or short template, and turning set bottom is equipped with swivel becket, and the outer wall of inside casing is equipped with
Mounting base, mounting base are equipped with rotation slot, and limit convex edge is equipped at the notch of rotation slot, and swivel becket rotation is connected to rotation slot.It is logical
The turning set for rotating synchronously two telescopic devices for being correspondingly connected to long template or short template is crossed, it can be to the long template of correspondence or short mould
It is mobile that plate carries out position.For the ease of the connection of mounting base and turning set, mounting base may be configured as two halves splicing construction, pass through spelling
The mode welded again is connect to fix with inside casing.Alternately, telescopic device can also use hydraulic jack in the prior art
Top, the bottom of hydraulic jack are fixedly connected with inside casing, and piston rod is then connected with corresponding long template or short template.
It as seen in figs. 5-6, further include the demoulding channel to locate below ground level, demoulding the bottom of the channel is equipped with center balladeur train,
Center balladeur train extends upwardly to the inner template component of the top or more, and the center balladeur train is passed through from inside casing and formed with inside casing
It is slidably connected；Hoist cable mechanism for slowly transferring inner template component to demoulding the bottom of the channel is installed on the balladeur train of center；This hangs
Rope mechanism can be jack can be by the fixed inner template component of hoist cable or other, and the mechanical equipment lifted by crane to it.
Hoisting apparatus is installed in demoulding channel, for lifting center balladeur train.Preferably, the hoisting apparatus be preferably but not limited to for
Hydraulic press equipped with mechanical grip, or lifting appliance.Cart is additionally provided in demoulding the bottom of the channel.
The present embodiment use state is as follows: in the installation of interior template component, center balladeur train being lifted into demoulding the bottom of the channel
And it is fixed, then the moulding bed and inner template component of hollow pier are installed.The long template of inner template component, short template, chamfering formwork are being pacified
First long template and short template are adjusted in place before dress, have been bolted long template and chamfering formwork, then by entire inner template
Component is sling, and is placed on the balladeur train of center by inside casing, then is slid into bottom and can be put in place, and next inner template component is one by one
Superposition.
When dismantling inner template, first passes through telescopic device and take in long template to inside casing side, then will by telescopic device
Short template is taken in inside casing side, so that the space hold of entire inner template component greatly reduces, then will be interior by hoist cable mechanism
Template component is slowly transferred, due to inner template component feature space occupy reduce, inner template component pass through demoulding channel with it is hollow
The opening of pier stud connection is simultaneously transferred to the bottom of center balladeur train.When interior template component reaches the bottom of center balladeur train fastly, pass through
Center balladeur train is lifted up by hoisting apparatus；Cart is pushed to the underface of center balladeur train, allow inner template component just
In good decentralization to cart；Inner template component directly entirely can be passed through demoulding channel and transferred out by staff at this time.Using
When program demoulding, the volume of inner template component is greatly reduced, the dismounting of inner template of being more convenient for component.And due to long template
It is equipped with cavity in short template, when hollow pier stud pours, forms concrete block in concrete injection cavity, so that even if will
The inner template component of lower section is first removed, and the inside story board group part of top will not generate still by the fixed function of the concrete block
It falls, improves the safety of use.By the way that first the inner template component of lower section is first removed, so that lower side space substantially increases,
Be more convenient for staff operation.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of internal model demoulding structure for precast hollow pier, it is characterised in that: including inner template component (1), the internal model
Board group part (1) includes two long template (2) and two short template (3), and the two sides of short template (3) are connected with chamfering formwork
(4), two long template (2), two short template (3) and four chamfering formworks (4) enclose the inner template for constituting hollow pier stud；Institute
It states long template (2) and chamfering formwork (4) mutually matched side is equipped with the bolt hole for being used for splicing；The inner template component (1)
It further include inside casing (5), the inside casing (5) is located at the center of inner template component (1), the inside casing (5) and long template (2) and interior
Telescopic device (6) are respectively connected between frame (5) and short template (3)；The long template (2) and short template (3) are backwards to inside casing (5)
One side surface is equipped with cavity (7)；It further include the demoulding channel (8) to locate below ground level, demoulding channel (8) the bottom installation
Have center balladeur train (9), the center balladeur train (9) extends upwardly to the inner template component (1) of the top or more, the center balladeur train
(9) it passes through from inside casing (5) and is formed with inside casing (5) and is slidably connected；It is equipped on the center balladeur train (9) for slowly transferring
Inner template component (1) to demoulding channel (8) bottom hoist cable mechanism (10)；Hoisting apparatus is installed in the demoulding channel (8)
(11), for lifting center balladeur train (9).
2. a kind of internal model demoulding structure for precast hollow pier according to claim 1, it is characterised in that: the demoulding
Channel (8) bottom is provided with cart (12).
3. a kind of internal model demoulding structure for precast hollow pier according to claim 1, it is characterised in that: the cavity
(7) section is rectangle.
4. a kind of internal model demoulding structure for precast hollow pier according to claim 3, it is characterised in that: the cavity
(7) it is welded by steel plate.
5. a kind of internal model demoulding structure for precast hollow pier according to claim 1, it is characterised in that: the lifting
Device (11) is the hydraulic press equipped with mechanical grip.
6. a kind of internal model demoulding structure for precast hollow pier according to claim 1, it is characterised in that: described flexible
Device (6) includes the mandril (14) for having internal thread turning set (13) and being threadedly coupled with turning set (13), the mandril
(14) end is connected with corresponding long template (2) or short template (3)；The turning set (13) and inside casing (5) rotation connect.
7. a kind of internal model demoulding structure for precast hollow pier according to claim 6, it is characterised in that: the inside casing
(5) outer wall is equipped with mounting base (15), and mounting base (15) is equipped with rotation slot (16), and limit is equipped at the notch of the rotation slot (16)
Position convex edge (17), turning set (13) bottom are equipped with swivel becket (18), and swivel becket (18) rotation is connected to rotation slot
(16).
8. a kind of internal model demoulding structure for precast hollow pier according to claim 7, it is characterised in that: each long mould
There are two being all connected between plate (2) or short template (3) and outline border telescopic device (6).
9. a kind of internal model demoulding structure for precast hollow pier according to claim 1, it is characterised in that: the short mould
Bearing diagonal (19) are fixedly connected between plate (3) and chamfering formwork (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565929.3A CN109551617B (en) | 2018-12-20 | 2018-12-20 | Internal mold stripping structure for prefabricating hollow pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565929.3A CN109551617B (en) | 2018-12-20 | 2018-12-20 | Internal mold stripping structure for prefabricating hollow pier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109551617A true CN109551617A (en) | 2019-04-02 |
| CN109551617B CN109551617B (en) | 2020-06-02 |
Family
ID=65870615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811565929.3A Active CN109551617B (en) | 2018-12-20 | 2018-12-20 | Internal mold stripping structure for prefabricating hollow pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109551617B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716501A (en) * | 2020-06-22 | 2020-09-29 | 中冶建工集团有限公司 | Method for disassembling internal mold supporting rod |
| CN113756197A (en) * | 2021-09-14 | 2021-12-07 | 保利长大工程有限公司 | UHPC (ultra high performance polycarbonate) segment box girder template suitable for complex variable cross section |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203334190U (en) * | 2013-06-25 | 2013-12-11 | 中交一公局第六工程有限公司 | Thin-wall hollow pillar integral elevation model turning device |
| CN104695332A (en) * | 2014-09-22 | 2015-06-10 | 重庆巨能建设集团路桥工程有限公司 | Hollow thin-walled pier internal mold bolt ejection removal technology |
| CN204456880U (en) * | 2015-02-03 | 2015-07-08 | 山东瑞鸿重工机械有限公司 | Hollow pier internal mold fast dismantling is except pull plate |
| CN205062665U (en) * | 2015-08-27 | 2016-03-02 | 北京联东投资(集团)有限公司 | Hollow pier stud centre form |
| JP2017534008A (en) * | 2015-09-18 | 2017-11-16 | 河海大学 | Assembling-type reinforced concrete pier column member |
-
2018
- 2018-12-20 CN CN201811565929.3A patent/CN109551617B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203334190U (en) * | 2013-06-25 | 2013-12-11 | 中交一公局第六工程有限公司 | Thin-wall hollow pillar integral elevation model turning device |
| CN104695332A (en) * | 2014-09-22 | 2015-06-10 | 重庆巨能建设集团路桥工程有限公司 | Hollow thin-walled pier internal mold bolt ejection removal technology |
| CN204456880U (en) * | 2015-02-03 | 2015-07-08 | 山东瑞鸿重工机械有限公司 | Hollow pier internal mold fast dismantling is except pull plate |
| CN205062665U (en) * | 2015-08-27 | 2016-03-02 | 北京联东投资(集团)有限公司 | Hollow pier stud centre form |
| JP2017534008A (en) * | 2015-09-18 | 2017-11-16 | 河海大学 | Assembling-type reinforced concrete pier column member |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716501A (en) * | 2020-06-22 | 2020-09-29 | 中冶建工集团有限公司 | Method for disassembling internal mold supporting rod |
| CN111716501B (en) * | 2020-06-22 | 2021-04-20 | 中冶建工集团有限公司 | Method for disassembling internal mold supporting rod |
| CN113756197A (en) * | 2021-09-14 | 2021-12-07 | 保利长大工程有限公司 | UHPC (ultra high performance polycarbonate) segment box girder template suitable for complex variable cross section |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109551617B (en) | 2020-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105839543B (en) | Construction process for self-lifting outer frame turnover formwork of bridge high pier | |
| CN209482679U (en) | Tub brace type integral steel platform suitable for sloping core construction | |
| CN110318534A (en) | Hang liter brace type Lift well mould panel assembly and a construction method | |
| CN109457931A (en) | Tub brace type integral steel platform and its construction method suitable for sloping core construction | |
| CN109551617A (en) | A kind of internal model demoulding structure for precast hollow pier | |
| CN106042173B (en) | Bridge production system | |
| CN114575589B (en) | Construction method for electric hoist lifting formwork of steel reinforced concrete structural column | |
| CN103419279A (en) | T-beam formwork integral dismantling and longitudinal sliding construction method | |
| CN113047181A (en) | Synchronous lifting device for inner and outer molds of hollow pier and construction method thereof | |
| CN108560842A (en) | With the precast concrete stair section of multipurpose hole and its preparation and application | |
| CN113502756A (en) | Thin-wall pier hydraulic creeping formwork system and construction method thereof | |
| CN107815971B (en) | High mound is from climbing hydraulic pressure mould system that turns over | |
| CN209368658U (en) | A kind of precast beam with locating piece | |
| CN209111252U (en) | Cover plate for side ditch mold | |
| CN201416267Y (en) | Self-tension bracing drum formwork for construction of elevator shaft in high-rise building | |
| CN106193586A (en) | Elevator Telescopic folding Integral lifting core | |
| CN214939685U (en) | Device capable of quickly disassembling anti-collision guardrail core mold | |
| CN206796124U (en) | A kind of quickly assembled and disassembled four pin prod casts tool | |
| CN210679123U (en) | External mold for casting cement rod | |
| CN212335785U (en) | Pier column mould | |
| CN207686279U (en) | A kind of fluid pressure type creeping formwork | |
| CN209339128U (en) | Quick Release pile crown bored concrete pile | |
| CN107214296A (en) | A kind of large diesel engine exterior mold bottom plate | |
| CN208932786U (en) | Cover plate for side ditch demoulds component | |
| CN107053434A (en) | A kind of quickly assembled and disassembled four pin prod casts tool and operating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |