CN107700838A - A kind of post die clamper and its application method - Google Patents
A kind of post die clamper and its application method Download PDFInfo
- Publication number
- CN107700838A CN107700838A CN201710900620.4A CN201710900620A CN107700838A CN 107700838 A CN107700838 A CN 107700838A CN 201710900620 A CN201710900620 A CN 201710900620A CN 107700838 A CN107700838 A CN 107700838A
- Authority
- CN
- China
- Prior art keywords
- post
- post die
- die clamper
- outer tube
- dead bolt
- 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.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
- E04G13/023—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor with means for modifying the sectional dimensions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
- E04G13/023—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor with means for modifying the sectional dimensions
- E04G13/025—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor with means for modifying the sectional dimensions with stiff clamping means bracing the back-side of the form without penetrating the forming surface
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of post die clamper and its application method, including outer tube, inner tube, latching device, screw mandrel, suspension ring, bearing pin, in said inner tube one end insertion outer tube, the other end is connected with screw mandrel, the latching device is fixed on outer tube one end, said inner tube is connected by latching device with outer tube, and the suspension ring are fixed in the middle part of outer tube, and the bearing pin is vertically inserted in outer tube one end.The length that the present invention passes through adjustment column die clamper, adapt to different construction requirements, device spare part is few, it is reusable, lower construction cost,, fast, can be with the efficiency of lifting construction using simple to operate, and it is fixed by screw mandrel and nut, it is firm to connect, and is not easy to loosen, and the part protruded after installation is less, it is not easy scratch or trips workmen, pass through suspension apparatus auxiliary positioning during installation, it is possible to reduce human input during installation improves the efficiency of installation, and suspension apparatus can prevent post die clamper from injuring workmen by a crashing object after unclamping during dismounting.
Description
Technical field
The present invention relates to construction field of tool, more particularly to a kind of post die clamper and its application method.
Background technology
At present, in construction, the construction for concrete square column, constructed frequently with the method for post mould, first pacified
After installing post mould, buckled etc. using steel pipe, screw thread, butterfly and post mould is reinforced, to prevent that post mould separates in casting concrete,
But the part used in this reinforcement means is more, complex operation, installation and removal are required for the long period, and for this, people develop
Many new post die clampers solve this problem, for example, the Chinese patent of Application No. 201220701261.2 discloses
A kind of type pillar shuttering clamp, including the clamping bar of strip, latch and voussoir, in use, one end of clamping bar is sequentially inserted into another folder
In the square hole of bar, four clamping bars form closed rectangular, respectively insertion latch in through hole, and voussoir is wedged between latch and clamping bar, and hammer is tight
The reinforcing of one of template is completed, the utility model is simple to operate, is easily installed, but the mode that used voussoir is reinforced is not
It is stable, vibrating head is usually used in casting concrete by concrete jolt ramming, exclusion wherein bubble, then voussoir is easy during this
It is vibrated and loosen, cause fixture to unclamp, cause spillage, and the clamping bar length of utility model is fixed, and after reinforced column mould, clamping bar
Also one section is exposed, easy scratch or trip by workmen, certain potential safety hazard be present, and the utility model exists
Easily shifted up and down in installation process, cause installation accuracy not high, in dismounting, post die clamper after release, can be because friction
Power is reduced and fallen, and easily causes security incident, certain potential safety hazard be present, in another example, Application No.
201610816142.4 Chinese patent discloses the bracing means and its application method of a kind of framed column template, the frame column mould
The bracing means of plate includes Long Circle round steel ring, and the invention makes the termination of bolt withstand steel annulus, promotion side by tightening bolt
Steel pipe moves along through hole to the circular arc termination of Long Circle round steel ring, thus plays the reinforcement effect of clamp frame trestle mould, but
It is that the invention needs to be fixed from the semicircular ring of appropriate length, makes for the construction of different post moulds, it is also necessary to change different
Semicircular ring, influence operating efficiency, at the same need purchase different length semicircular ring be used as spare part, with adapt to different constructions want
Ask, add the equipment purchase cost of unit in charge of construction.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of post die clamper and its application method, to solve existing skill
Art post die clamper, length can not be adjusted, complex operation, spare part are more, the problems such as installing/dismounting inconvenience.
The present invention is achieved by the following technical programs.
A kind of post die clamper of the new offer of the present invention, including outer tube, inner tube, latching device, screw mandrel, suspension ring, bearing pin, institute
State in inner tube one end insertion outer tube, the other end is connected with screw mandrel, and the latching device is fixed on outer tube one end, and said inner tube passes through
Latching device is connected with outer tube, and the suspension ring are fixed in the middle part of outer tube, and the bearing pin is vertically inserted in outer tube one end.
The outer tube inserts one end in bearing pin and is provided with screw mandrel groove.
Said inner tube is provided with multiple dead bolt holes along inner tube center line equidistant arrangement.
The latching device includes shield, opening handle, dead bolt pin, dead bolt, and the shield is fixed on outer tube one end, described
The middle part of opening handle is hinged with shield, and in one end insertion shield, described dead bolt one end is cut with scissors by dead bolt pin and opening handle
Connect, the other end is inserted into dead bolt hole after passing through outer tube.
The latching device has one or more.
Compression spring is provided between described opening handle insertion shield one end and shield.
The bearing pin is vertically inserted in outer tube one end, and is locked by steel ball spring and be connected with outer tube.
The post die clamper also includes suspension apparatus, and the suspension apparatus bottom is connected with suspension ring, is provided with the middle part of suspension apparatus
Grip part, top are provided with fixing hole.
A kind of post die clamper, its application method are as follows:
(1) before installing, check whether the latching device of all post die clampers can normally-open and pinning;
(2) opening handle is pressed, steps up the size of post mould, the depth of adjustment inner tube insertion, after adjusting as needed
Opening handle is unclamped, is made in dead bolt insertion dead bolt hole;
(3) repeat step (2), all post die clampers are adjusted;
(4) every four of post die clamper is one group, is installed since post mould top, during installation, needs fixed position in post mould
Top 15cm to 20cm at, hammer into iron nail, then grasp grip part, post die clamper is lifted, then passes through fixing hole
Post die clamper is hung on iron nail;
After (5) four post die clampers are all hung up properly, the screw mandrel of a post die clamper is put into the screw mandrel of another post die clamper
In groove, and insert bearing pin;
(6) position of four post die clampers is adjusted, a rectangular frame is formed it into, then loads onto pad in screw mandrel one end
And nut, and nut is tightened using electric wrench, the torque settings of electric wrench are 90Nm to 120Nm;
(7) according to step (4), step (5), step (6), the installation of remaining post die clamper is completed;
(8) when dismantling post die clamper, tear open since post mould bottom, unscrewed nut upwards using spanner, extract bearing pin, will
After four post die clampers separate, grip part is grasped, post die clamper is removed.
(9) after all post die clampers are all removed, iron nail is extracted using claw hammer.
The beneficial effects of the present invention are:The length of adjustable post die clamper, adapts to different construction requirements, device spare part
It is few, it is reusable, lower construction cost, use is simple to operate, fast, can with the efficiency of lifting construction, and by screw mandrel and
Nut is fixed, and connection is firm, is not easy to loosen, and the part protruded after installation is less, is not easy scratch or trips workmen, peace
Pass through suspension apparatus auxiliary positioning during dress, it is possible to reduce human input during installation improves the efficiency of installation, suspention dress during dismounting
Putting can prevent post die clamper from injuring workmen by a crashing object after unclamping.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is scheme of installation of the present invention.
In figure:1- outer tubes, 2- inner tubes, 3- latching devices, 4- screw mandrels, 5- suspension ring, 6- bearing pins, 7- steel ball springs lock, 8- hang
Device for hoisting, 11- screw mandrel grooves, 12- fixing holes, 13- grip parts, 21- dead bolt holes, 31- shields, 32- opening handles, 33- dead bolt pins,
34- dead bolts, 35- compression springs.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
As shown in figure 1, a kind of post die clamper, including outer tube 1, inner tube 2, latching device 3, screw mandrel 4, suspension ring 5, bearing pin 6, institute
State outer tube 1 be 60mm × 60mm × 3mm specifications square tube, a length of 450mm to 500mm, said inner tube 2 be 50mm × 50mm ×
The square tube of 4mm specifications, a length of 450mm to 500mm, the one end of said inner tube 2 are inserted in outer tube 1, and the other end is connected with screw mandrel 4, institute
State latching device 3 and be fixed on the one end of outer tube 1, said inner tube 2 is connected by latching device 3 with outer tube 1, and the suspension ring 5 are fixed on
The middle part of outer tube 1, the bearing pin 6 are vertically inserted in the one end of outer tube 1, after inserting outer tube 1 by inner tube 2, can be slided in outer tube 1,
, can be with the length of adjustable column die clamper, to adapt to different size of post mould, latching device 3 by adjusting the insertion depth of inner tube 2
Inner tube 2 can be prevented in the slip of outer tube 1, to cause post mould to loosen, in post during post die clamper use the locking of inner tube 2
During die clamper fixed column mould, by screw mandrel 4 and nut, the larger clamping force of acquisition, and stable connection can be made, using process
In be not easy to loosen, bearing pin 6 can prevent post die clamper be connected with each other when get loose, cause post mould loosen, peace installation and dismantling
Because of post die clamp when when unloading post die clamper, post die clamper can be sling by suspension ring 5, is easy to one man operation, and prevent from dismantling
Tool loosening, which is dropped, injures workmen by a crashing object.
The outer tube 1 inserts one end in bearing pin 6 and is provided with screw mandrel groove 11, can be by four post die clampers by screw mandrel groove 11
It is connected with each other, forms the framework of a rectangle, post mould can be fixed from four direction.
Said inner tube 2 is provided with multiple dead bolt holes 21 along the center line equidistant arrangement of inner tube 2, and dead bolt 34 inserts dead bolt hole 21
Afterwards, limit slip of the inner tube 2 in outer tube 1, start the effect of fixed inner tube 2, between dead bolt hole 21 at intervals of 5cm, according to
The length of post die clamper when dead bolt 34 inserts different dead bolt holes 21, scale is engraved near corresponding dead bolt hole 21, is easy to worker
Quickly it is adjusted to suitable length.
The latching device 3 includes shield 31, opening handle 32, dead bolt pin 33, dead bolt 34, and the shield 31 is fixed on outer
The one end of pipe 1, the middle part of the opening handle 32 and shield 31 are be hinged, and in one end insertion shield 31, described one end of dead bolt 34 leads to
It is be hinged with opening handle 32 to cross dead bolt pin 33, the other end is inserted into dead bolt hole 21 after passing through outer tube 1, press-started handle 32
Afterwards, the one end of opening handle 32 is extracted dead bolt 34 from dead bolt guide groove and dead bolt hole 21 by dead bolt pin 33 so that inner tube 2 can be
Freely slided in outer tube 1, after unclamping opening handle 32, due to the effect of compression spring 35, dead bolt 34 is pressed into dead bolt hole 25
It is interior, inner tube 2 is pinned, prevents inner tube 2 from being slided in outer tube 1, shield 31 can prevent concrete from falling into inside latching device 3, prolong
The service life of slow device.
The latching device 3 has 2, is respectively provided at the both sides of outer tube 1, during use can singlehanded pressing two simultaneously lock
The opening handle 32 of mechanism 3, it is easy to operation, while improve the reliability of connection.
The opening handle 32, which is inserted between the one end of shield 31 and shield 31, is provided with compression spring 35, and compression spring 35 can be with
Dead bolt is pressed into dead bolt hole 25 by opening handle 32, prevents that opening handle 32 loosens when in use, unclamps post die clamper.
The bearing pin 6 is vertically inserted in the one end of outer tube 1, and is connected by steel ball spring lock 7 with outer tube 1, and steel ball spring lock 7 can
Loosen and drop to prevent shotpin axle 6, improve the reliability of post die clamper.
The post die clamper also includes suspension apparatus 8, and the bottom of suspension apparatus 8 is connected with suspension ring 5, the middle part of suspension apparatus 8
Provided with grip part 13, top is provided with fixing hole 12, and suspension apparatus 8 is cut into by steel wire bending or steel plate, mounting post die clamper
When, the fixing hole 12 on the top of suspension apparatus 8 is hooked on nail, and post die clamper is sling, and is easily installed workmen's installation, is reduced
Installation personnel quantity, operating efficiency is improved, be also prevented from shifting in installation process center pillar die clamper, influence installation accuracy,
When dismantling post die clamper, suspension apparatus 8 can avoid the situation that post die clamper falls when nut unclamps because of frictional force reduction,
Improve the security of construction operation and improve the service life of equipment, grip part 13 is easy to workmen to lift post die clamper, kept away
Exempt from installation process and drop to injure workmen by a crashing object.
As shown in Fig. 2 a kind of application method of post die clamper is as follows:
(1) install before, check all post die clampers latching device 3 whether can it is normally-open and pin, in advance find damage
Bad post die clamper, in order to avoid influence installation below;
(2) opening handle 32 is pressed, steps up the size of post mould as needed, the depth that adjustment inner tube 2 is inserted, adjusts
Opening handle 32 is unclamped afterwards, dead bolt 34 is inserted in dead bolt hole 21, by adjusting the insertion depth of inner tube 2 come adjustment column die clamper
Length, it is adapted to different construction requirements;
(3) repeat step (2), all post die clampers are adjusted;
(4) every four of post die clamper is one group, is installed since post mould top, during installation, needs fixed position in post mould
Top 15cm to 20cm at, hammer into iron nail, then grasp grip part (13), post die clamper is lifted, then by solid
Determine hole (12) to hang over post die clamper on iron nail, post die clamper is fixed by iron nail, is improved the precision of positioning, is prevented
Installation process center pillar die clamper is shifted over and influences installation accuracy, while is positioned post die clamper successively by iron nail,
A people is only needed to complete, it is possible to reduce the quantity of required workmen during installation;
After (5) four post die clampers are all hung up properly, the screw mandrel (4) of a post die clamper is put into the silk of another post die clamper
In bar groove (11), and bearing pin (6) is inserted, be connected with each other post die clamper, formed a rectangular frame, be enclosed on outside post mould, from
Post mould is fixed four direction;
(6) position of four post die clampers is adjusted, a rectangular frame is formed it into, is then loaded onto in screw mandrel (4) one end
Pad and nut, and nut is tightened using electric wrench, the torque settings of electric wrench are 100Nm, and electric wrench can be with
The efficiency of work is improved, and reduces the labor intensity of worker, when the torque settings of electric wrench are less than being 90Nm, post mould is pouring
Gap is easily produced after building and causes spillage, the torque settings of electric wrench are more than when being 120Nm, the clamping force mistake that post mould is subject to
Greatly, easily it is deformed, influences the size of square column, and the service life of post mould can be reduced;
(7) according to step (4), step (5), step (6), the installation of remaining post die clamper is completed;
(8) when dismantling post die clamper, tear open since post mould bottom, unscrewed nut upwards using spanner, extract bearing pin
(6) after, four post die clampers are separated, suspension apparatus 8 catches on post die clamper, prevents that post die clamper falls when unclamping, and carries
The security of height construction and the service life of device, after separating post die clamper, grasp grip part (13), successively by post die clamp
Tool is removed.
(9) after all post die clampers are all removed, iron nail is extracted using claw hammer, avoids iron nail from influenceing post mould next time
Use.
Claims (9)
- A kind of 1. post die clamper, it is characterised in that:Including outer tube (1), inner tube (2), latching device (3), screw mandrel (4), suspension ring (5), bearing pin (6), said inner tube (2) one end insertion outer tube (1) is interior, and the other end is connected with screw mandrel (4);The latching device (3) It is fixed on outer tube (1) one end;Said inner tube (2) is connected by latching device (3) with outer tube (1);The suspension ring (5) are fixed on outer Manage in the middle part of (1);The bearing pin (6) is vertically inserted in outer tube (1) one end.
- A kind of 2. post die clamper as claimed in claim 1, it is characterised in that:The outer tube (1) sets in bearing pin (6) insertion one end There is screw mandrel groove (11).
- A kind of 3. post die clamper as claimed in claim 1, it is characterised in that:Said inner tube (2) is provided with multiple along inner tube (2) The dead bolt hole (21) of center line equidistant arrangement.
- A kind of 4. post die clamper as described in claim 1 or 3, it is characterised in that:The latching device (3) includes shield (31), opening handle (32), dead bolt pin (33), dead bolt (34), the shield (31) are fixed on outer tube (1) one end;The unlatching The middle part of handle (32) is be hinged with shield (31), and in one end insertion shield (31);Described dead bolt (34) one end passes through dead bolt pin (33) be hinged with opening handle (32), the other end is inserted into dead bolt hole (21) after passing through outer tube (1).
- A kind of 5. post die clamper as claimed in claim 1, it is characterised in that:The latching device (3) has one or more.
- A kind of 6. post die clamper as claimed in claim 4, it is characterised in that:The opening handle (32) inserts shield (31) one Compression spring (35) is provided between end and shield (31).
- A kind of 7. post die clamper as claimed in claim 1, it is characterised in that:The bearing pin (6) is vertically inserted in outer tube (1) one End, and (7) are locked by steel ball spring and are connected with outer tube (1).
- A kind of 8. post die clamper as claimed in claim 1, it is characterised in that:The post die clamper also includes suspension apparatus (8), institute State suspension apparatus (8) bottom to be connected with suspension ring (5), be provided with grip part (13) in the middle part of suspension apparatus (8), top is provided with fixing hole (12)。
- 9. a kind of application method of post die clamper, its feature comprise the following steps as described in claim 1 to 8 any one:(1) before installing, check whether the latching device (3) of all post die clampers can normally-open and pinning;(2) opening handle (32) is pressed, steps up the size of post mould as needed, the depth of adjustment inner tube (2) insertion, adjusts Opening handle (32) is unclamped afterwards, dead bolt (34) is inserted in dead bolt hole (21);(3) repeat step (2), all post die clampers are adjusted;(4) every four of post die clamper is one group, is installed since post mould top, during installation, needs the upper of fixed position in post mould At square 15cm to 20cm, iron nail is hammered into, grip part (13) is then grasped, post die clamper is lifted, then passes through fixing hole (12) post die clamper is hung on iron nail;After (5) four post die clampers are all hung up properly, the screw mandrel (4) of a post die clamper is put into the screw mandrel groove of another post die clamper (11) in, and bearing pin (6) is inserted;(6) position of four post die clampers is adjusted, a rectangular frame is formed it into, then loads onto pad in screw mandrel (4) one end And nut, and nut is tightened using electric wrench, the torque settings of electric wrench are 90Nm to 120Nm;(7) according to step (4), step (5), step (6), the installation of remaining post die clamper is completed;(8) when dismantling post die clamper, tear open since post mould bottom, unscrewed nut upwards using spanner, extract bearing pin (6), will After four post die clampers separate, grip part (13) is grasped, post die clamper is removed.(9) after all post die clampers are all removed, iron nail is extracted using claw hammer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710900620.4A CN107700838A (en) | 2017-09-28 | 2017-09-28 | A kind of post die clamper and its application method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710900620.4A CN107700838A (en) | 2017-09-28 | 2017-09-28 | A kind of post die clamper and its application method |
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CN201710900620.4A Pending CN107700838A (en) | 2017-09-28 | 2017-09-28 | A kind of post die clamper and its application method |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108436530A (en) * | 2018-05-24 | 2018-08-24 | 吴淑霞 | A kind of fixture of milling machine |
CN109681503A (en) * | 2019-02-12 | 2019-04-26 | 郑海东 | A kind of telescopic rod |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1539053A (en) * | 1924-09-22 | 1925-05-26 | Howard O Mcmillan | Clamp for concrete-column forms |
CN102605947A (en) * | 2012-03-14 | 2012-07-25 | 李三猛 | Reinforcing equipment for external formwork of free-standing column |
CN103590600A (en) * | 2013-11-27 | 2014-02-19 | 四川华构住宅工业有限公司 | Prefabricated column formwork and application method thereof |
CN203878987U (en) * | 2014-04-22 | 2014-10-15 | 山西省宏图建设集团有限公司 | Novel tool type rectangular column formwork reinforcing device |
CN206091289U (en) * | 2016-09-07 | 2017-04-12 | 中国航天建设集团有限公司 | A formwork support for pouring frame post |
-
2017
- 2017-09-28 CN CN201710900620.4A patent/CN107700838A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1539053A (en) * | 1924-09-22 | 1925-05-26 | Howard O Mcmillan | Clamp for concrete-column forms |
CN102605947A (en) * | 2012-03-14 | 2012-07-25 | 李三猛 | Reinforcing equipment for external formwork of free-standing column |
CN103590600A (en) * | 2013-11-27 | 2014-02-19 | 四川华构住宅工业有限公司 | Prefabricated column formwork and application method thereof |
CN203878987U (en) * | 2014-04-22 | 2014-10-15 | 山西省宏图建设集团有限公司 | Novel tool type rectangular column formwork reinforcing device |
CN206091289U (en) * | 2016-09-07 | 2017-04-12 | 中国航天建设集团有限公司 | A formwork support for pouring frame post |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108436530A (en) * | 2018-05-24 | 2018-08-24 | 吴淑霞 | A kind of fixture of milling machine |
CN109681503A (en) * | 2019-02-12 | 2019-04-26 | 郑海东 | A kind of telescopic rod |
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