CN106760512A - A kind of pipe drawing device of small-sized preformed hole, template connecting structure and its construction method - Google Patents
A kind of pipe drawing device of small-sized preformed hole, template connecting structure and its construction method Download PDFInfo
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- CN106760512A CN106760512A CN201610955091.3A CN201610955091A CN106760512A CN 106760512 A CN106760512 A CN 106760512A CN 201610955091 A CN201610955091 A CN 201610955091A CN 106760512 A CN106760512 A CN 106760512A
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- pipe
- inner tube
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- preformed hole
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G15/00—Forms or shutterings for making openings, cavities, slits, or channels
- E04G15/04—Cores for anchor holes or the like around anchors embedded in the concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
A kind of pipe drawing device of small-sized preformed hole, template connecting structure and its construction method, the pipe drawing device includes holding force inner tube, pipe in elasticity, the outer bagging of isolation, closure termination and tube drawing pin, the internal diameter of pipe is adapted with the external diameter of holding force inner tube in elasticity, pipe is integrally enclosed within the outside of holding force inner tube in elasticity, the outer bagging of isolation is integrally enclosed within the outside of pipe in elasticity, the template connecting structure includes inner side template and outboard template and sequentially passes through two template preformed holes and be stuck in pipe drawing device between the two, the construction method includes structure manufacture, assembling pipe drawing device, the step such as casting concrete and dismounting pipe drawing device.Pipe drawing device of the invention is applied to the small-sized preformed hole of foam concrete component of the diameter less than 200mm, and simple structure is easy to operate, and formed precision is high, reduces labour intensity and processing cost, improves operating efficiency.
Description
Technical field
The invention belongs to foam concrete construction field, more particularly to a kind of tube drawing for being molded small-sized preformed hole is filled
Put, template connecting structure and its construction method.
Background technology
In cellular concrete product production field, when shaping carries the product such as partition plate of small-sized preformed hole, need
Inner core die is imbedded in advance, after extraction after concrete hardening.The existing core of in the market is generally steel core or aerated core.Steel
Coremaking mould is generally used for dry concrete, because foam concrete mobility is big, and froth breaking or micro- can be produced in hardening process
The problems such as expansion, during using steel core, even if brushing releasing agent, the problem that can also produce core can not pull out, and core and mould
Fixing clearance between tool preformed hole can occur spillage.And aerated core is then generally used for being molded large-scale preformed hole, when used for into
During the small-sized preformed hole of type, it is big to there is mandrel molding difficulty, and core precision is unsatisfactory for preformed hole requirement, and inflation bleed air operation is cumbersome etc.
Problem.
The content of the invention
It is an object of the invention to provide a kind of pipe drawing device of small-sized preformed hole, template connecting structure and its construction method,
Solving the inapplicable foam concrete of existing steel core produces froth breaking or microdilatancy, core to extract difficult, fixing clearance hair
The technical problem of raw spillage, will also solve existing aerated core and not apply to small-sized preformed hole, and the shaping big precision of difficulty is small, operation
Cumbersome technical problem.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of pipe drawing device of small-sized preformed hole, the position of the template preformed hole in the template of medial and lateral, it is characterised in that：
Including by pipe in inner side to outside holding force inner tube nested layer by layer, elasticity and the outer bagging of isolation, also including blocking termination and pulling out
Barrel bolt,
The two ends of the holding force inner tube are respectively inner tube built-in end and inner tube is torn open and pulls out end, and inner tube is torn open and pulls out the end outer surface at end and be provided with
External screw thread and at least one parallel to holding force inner tube direction are torn open and pull out hole,
The internal diameter of pipe is adapted with the external diameter of holding force inner tube in the elasticity, the external diameter of pipe and template preformed hole in elasticity
Diameter is adapted, in the elasticity two ends of pipe be respectively for the insertion of holding force inner tube middle pipe openend and with elasticity in
The integrally formed middle pipe curved surface blind end of pipe, pipe is integrally enclosed within the outside of holding force inner tube in elasticity,
The diameter of the outer bagging of the isolation is adapted with the external diameter of template preformed hole, and the two ends of the outer bagging of the isolation are respectively set
Bag openend and bagging sealed end, isolate the outside that outer bagging is integrally enclosed within pipe in elasticity,
The closure termination is the female hard short tube of inner wall belt, and the internal thread is adapted with external screw thread, the closure end
Head is connected through a screw thread and is moved along the pipe range direction of holding force inner tube, and one end of the closure termination is drop-head round platform, drop-head circle
The end face diameter of platform is adapted with the external diameter of holding force inner tube,
The external diameter of the tube drawing pin with tear the diameter that pulls out hole open and be adapted, the insertion of the bottom of tube drawing pin is torn open and is pulled out in hole.
Said inner tube built-in end is drop-head round platform, and the taper of inner tube drop-head round platform is 30-60 degree.
More than two tearing open pulls out hole along the setting of pipe weekly interval.
The holding force inner tube is plastic conduit or metal tube.
Pipe is rubber tube or the prefabricated elastic tube of organic material in the elasticity.
The outer bagging of the isolation is plastic sheeting of the thickness less than 0.025mm.
The tube drawing pin is bent into Z-shaped by reinforcing bar, including bottom is inserted perpendicularly into and tears the inserting paragraph for pulling out hole, linkage section and operation open
Handle section.
A kind of template connecting structure of the pipe drawing device of small-sized preformed hole, including inner side template and outboard template, interior side form
Corresponding template preformed hole is provided with plate and outboard template, also including sequentially passing through two template preformed holes and being stuck between the two
Pipe drawing device, the length of the holding force inner tube more than pipe in elasticity, isolate the length of outer bagging, it is described it is elastic in pipe
Length is less than the length of the outer bagging of isolation,
The end face of said inner tube built-in end, middle pipe curved surface blind end and bagging blind end stretches out the inner side table of inner side template
Face, the outer surface of said inner tube built-in end holds out against and pass through between the inner wall surface and inner side template of middle pipe curved surface blind end
Pipe sealing, the outer surface of pipe curved surface blind end in the bagging blind end overcoat in extruding elasticity；
Said inner tube is torn open to pull out the portion with external threads at end and tear open and pulls out the outer surface that hole is exposed independent from outboard template, while middle pipe opening
The end face of end and bagging openend stretches out the outer surface of outboard template, and the end face of the drop-head round platform of the closure termination is outside
The outer surface position insertion inner tube of side template is torn open and pulls out crush seal between end and middle pipe openend.
A kind of preformed hole construction method of the pipe drawing device of the small-sized preformed hole of application, construction procedure is as follows：
Step one, it is according to the size design pipe drawing device that preformed hole is opened up in inner side template and outboard template and pre- in the factory
Pipe, closure termination and tube drawing pin, are ready to isolate outer bagging in holding force inner tube processed, elasticity；
Step 2, installs the inner side template and outboard template of preset die preformed hole；
Step 3, pipe in elasticity is enclosed within the outside of holding force inner tube at the scene, the inner tube while middle pipe curved surface blind end is locked
Built-in end；
Step 4, will isolate outer bagging and is enclosed within the outside of pipe in elasticity, and bagging blind end is locked middle pipe curved surface blind end group
Into pipe drawing device；
Step 5, will pipe drawing device insert mould preformed hole in, between inner tube built-in end and inner side template by extrude elasticity in
Pipe is sealed；
Step 6, by closure termination point casing on middle pipe curved surface blind end, and is connected through a screw thread rotation closure termination until will
Block the outer surface position insertion holding force inner tube of the end face in outboard template of the drop-head round platform of termination and pipe extruding in elasticity
Sealing；
Step 7, the casting concrete between inner side template and outboard template, scrapes covering curing after flat surface；
Step 8, meets after pipe drawing device dismounting requires after the intensity of concrete, the insertion of tube drawing pin is torn open in pulling out hole, pulls out holding force
Inner tube；
Step 9, stretches into and pull out pipe in elasticity in concrete preformed hole, isolates outer bagging and is formed integrally with concrete component,
It is not required to extract.
In the step 9, be also preset with to tear open in middle pipe openend and pull out hole, by tube drawing pin insert this tear open pull out in hole extract
Pipe in elasticity.
Compared with prior art the invention has the characteristics that and beneficial effect：
Pipe drawing device of the invention is applied to small-sized preformed hole of the diameter less than 200mm, and simple structure is easy to operate, shaping essence
Degree is high, reduces labour intensity and processing cost, improves operating efficiency.
First, pipe drawing device three-layer pipe shape structure is nested layer by layer, hard inner tube holding force, and elastic outer pipe coordinates with hard inner tube,
And set and can stay in the outer bagging of isolation among concrete component, tectonic sieving is rationally, easy to make, holding force inner tube and it is elastic in every
Guan Jun is designed by preformed hole, and preformed hole Forming Quality is ensure that well.
2nd, pipe is provided with elasticity between holding force inner tube and foam concrete and isolates outer bagging, solve foam coagulation
Nian Jie with core and influence the problem of the demoulding after soil hardening, after concrete hardening, holding force inner tube is easily from elasticity in pipe
Take out, can fast demoulding.
3rd, pipe overcoat isolates outer bagging in elasticity, without in outer side mold brushing releasing agent, preventing releasing agent from corroding elasticity
Middle pipe, it is ensured that its durability and recuperability.
4th, termination and the adjustable connection of holding force Internal Pipe Thread are blocked, the present apparatus is applicable various concrete component thickness, while
The convenience that further lifting is dismantled.
5th, the template connecting structure of pipe drawing device of the invention, the template in both sides reserves hole site while in elasticity
Pipe flexible sealing, flexible sealing between pipe in other end closure termination insertion holding force inner tube and elasticity, it is to avoid foam is mixed
Spillage problem during solidifying earth forming.
6th, the application method of pipe drawing device of the invention is easy, by the way that tubular structure is nested and insert-pull pin and tears open and pulls out hole
Design, accelerate installing/dismounting speed, reduce labour intensity and processing cost, improve operating efficiency.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is pipe drawing device composition schematic diagram of the present invention.
Fig. 2 is pipe drawing device scheme of installation of the present invention.
Fig. 3 is the structural representation of the holding force inner tube of pipe drawing device of the present invention.
Fig. 4 be pipe drawing device of the present invention elasticity in pipe structural representation.
Fig. 5 is the structural representation of the closure termination of pipe drawing device of the present invention.
Fig. 6 is the structural representation of the tube drawing pin of pipe drawing device of the present invention.
Fig. 7 is all parts and mould preformed hole relative position schematic diagram of pipe drawing device of the present invention.
Fig. 8 is the node profile of the inner side template of the template connecting structure of pipe drawing device of the present invention.
Fig. 9 is the node profile of the outboard template of the template connecting structure of pipe drawing device of the present invention.
Reference：1- holding forces inner tube, 1.1- inner tubes built-in end, 1.2- inner tubes tear open pull out end, 2- elasticity in pipe,
Pipe curved surface blind end, 3- isolate outer bagging, 3.1- baggings openend, 3.2- sets in pipe openend, 2.2- in 2.1-
Bag sealed end, 4- closure termination, 4.1- drop-heads round platform, 5- tube drawings pin, 5.1- inserting paragraphs, 5.2- linkage sections, 5.3- behaviour
Make handle section, 6- inner side templates, 7- outboard templates, 8- templates preformed hole, 9- external screw threads, 10- tear open pull out hole, spiral shell in 11-
Line.
Specific embodiment
Embodiment referring to shown in Fig. 1-2, a kind of pipe drawing device of small-sized preformed hole, positioned at inner side template 6 and outboard template 7
On template preformed hole 8 position, it is including outer by pipe 2 in inner side to outside holding force inner tube 1 nested layer by layer, elasticity and isolation
Bagging 3, also including closure termination 4 and tube drawing pin 5.
Referring to shown in Fig. 1-3, the two ends of the holding force inner tube 1 are respectively inner tube built-in end 1.1 and inner tube is torn open and pulls out end 1.2,
Inner tube is torn open to pull out the external screw thread 9 and at least one that the end outer surface at end 1.2 is provided with parallel to holding force inner tube direction and tear open and pulls out hole 10.
Referring to shown in Fig. 1-2,4, the internal diameter of pipe 2 is adapted with the external diameter of holding force inner tube 1 in the elasticity, in elasticity every
The external diameter of pipe 2 is adapted with the diameter of template preformed hole 8, and the two ends of pipe 2 are respectively and are embedded in for holding force inner tube 1 in the elasticity
Middle pipe openend 2.1 and middle pipe curved surface blind end 2.2 integrally formed with pipe in elasticity, elasticity in pipe 2 it is whole
Body is enclosed within the outside of holding force inner tube 1.
The diameter of the outer bagging 3 of the isolation is adapted with the external diameter of template preformed hole 8, the two ends of the outer bagging 3 of the isolation
Respectively bagging openend 3.1 and bagging sealed end 3.2, isolate the overall outside for being enclosed within pipe 2 in elasticity of outer bagging 3.
Referring to shown in Fig. 1-2,5, the closure termination 4 is hard short tube of the inwall with internal thread 11, the internal thread 9 with
External screw thread 11 is adapted, and the closure termination 4 is connected through a screw thread moves along the pipe range direction of holding force inner tube 1, the closure end
First 4 one end is drop-head round platform 4.1, and the end face diameter of the drop-head round platform 4.1 is adapted with the external diameter of holding force inner tube 1, the drop-head
The taper of round platform 4.1 is 30-60 degree.
Referring to shown in Fig. 1-2,6, the external diameter of the tube drawing pin 5 with tear the diameter that pulls out hole 10 open and be adapted, the bottom of tube drawing pin 5
Insertion is torn open and is pulled out in hole 10.
In the present embodiment, said inner tube built-in end is inner tube drop-head round platform, and the taper of inner tube drop-head round platform is 30-60 degree,
In the convenient more preferable insertion elasticity by holding force inner tube in pipe.When tear open pull out hole for two or more when, tear open and pull out hole and set along pipe weekly interval
Put.
In the present embodiment, holding force inner tube is plastic conduit or metal tube.
In the present embodiment, pipe is rubber tube or the prefabricated elastic tube of organic material in elasticity.
In the present embodiment, isolate plastic sheeting of the outer bagging for thickness less than 0.025mm.
In the present embodiment, tube drawing pin 5 is bent into Z-shaped by reinforcing bar, including bottom be inserted perpendicularly into tear open the inserting paragraph 5.1 for pulling out hole,
Linkage section 5.2 and operation handle section 5.3.
Referring to shown in Fig. 7-9, the template connecting structure of the pipe drawing device of this small-sized preformed hole, including the He of inner side template 6
Corresponding template preformed hole 8 is provided with outboard template 7, inner side template 6 and outboard template 7, also including sequentially passing through two templates
Preformed hole 8 is simultaneously stuck in pipe drawing device between the two, the length of the holding force inner tube 1 more than pipe 2 in elasticity, isolate outer bagging
3 length, the length of the length less than the outer bagging 3 of isolation of pipe 2 in the elasticity.
Referring to shown in Fig. 7-8, said inner tube built-in end 1.1, middle pipe curved surface blind end 2.2 and bagging blind end 3.2
End face stretches out the inner surface of inner side template 6, and the outer surface of said inner tube built-in end 1.1 holds out against middle pipe curved surface blind end
Between 2.2 inner wall surface and inner side template 6 by extrude elasticity in pipe seal, in the overcoat of bagging blind end 3.2 every
The outer surface of pipe curved surface blind end 2.2.
Referring to shown in Fig. 7 and Fig. 9, said inner tube is torn open to pull out the portion with external threads 9 at end and tear open and pulls out hole 10 and be exposed independent from outboard template 7
Outer surface, while the end face of middle pipe openend 2.1 and bagging openend 3.1 stretches out the outer surface of outboard template 7,
The end face of the drop-head round platform 4.1 of the closure termination 4 outboard template 7 outer surface position insertion inner tube tear open pull out end 1.2 with
Crush seal between middle pipe openend 2.1.
The preformed hole construction method of the pipe drawing device of this small-sized preformed hole of application, construction procedure is as follows：
Step one, according to the size design pipe drawing device that preformed hole is opened up in inner side template 6 and outboard template 7, and in the factory
Pipe 2, closure termination 4 and tube drawing pin 5, are ready to isolate outer bagging 3 in prefabricated holding force inner tube 1, elasticity；
Step 2, installs the inner side template 6 and outboard template 7 of preset die preformed hole 8；
Step 3, pipe in elasticity 2 is enclosed within the outside of holding force inner tube 1 at the scene, while middle pipe curved surface blind end 2.2 is locked
Inner tube built-in end 1.1, pipe 2 and mould preformed hole are suitably compressed in elasticity, must not overexertion, cause holding force inner tube inner tube embedding
Enter end and depart from another template preformed hole；
Step 4, will isolate outer bagging 3 and is enclosed within the outside of pipe 2 in elasticity, and the middle pipe curved surface that is locked of bagging blind end 3.2 is closed
End 2.2 constitutes pipe drawing device；
Step 5, by pipe drawing device insert mould preformed hole in, by extruding bullet between inner tube built-in end 1.1 and inner side template 6
Pipe 2 is sealed in property；
Step 6, closure termination 4 is enclosed within middle pipe curved surface blind end 2.2, and it is straight to be connected through a screw thread rotation closure termination 4
End face to the drop-head round platform 4.1 by termination 4 is blocked is embedded in holding force inner tube 1 with elasticity in the outer surface position of outboard template 7
The crush seal of middle pipe 2；
Step 7, the casting concrete between inner side template 6 and outboard template 7, scrapes covering curing after flat surface；
Step 8, meets after pipe drawing device dismounting requires after the intensity of concrete, the insertion of tube drawing pin 5 is torn open in pulling out hole 10, pulls out
Holding force inner tube 1；
Step 9, stretches into and pull out pipe in elasticity 2 in the concrete preformed hole of shaping, isolates outer bagging 3 and concrete component
One is formed, is not required to extract, in the step 9, it is also possible to set to tear open in middle pipe openend 2.1 in advance and pull out hole, then will pull out
Barrel bolt insert this tear open pull out in hole after extract pipe in elasticity again.
Claims (10)
1. a kind of pipe drawing device of small-sized preformed hole, positioned at inner side template（6）And outboard template（7）On template preformed hole（8）
Position, it is characterised in that：Including by inner side to outside holding force inner tube nested layer by layer（1）, elasticity in pipe（2）It is outer with isolation
Bagging（3）, also including closure termination（4）With tube drawing pin（5）,
The holding force inner tube（1）Two ends be respectively inner tube built-in end（1.1）Torn open with inner tube and pull out end（1.2）, inner tube tears open and pulls out end
（1.2）End outer surface be provided with external screw thread parallel to holding force inner tube direction（9）Torn open with least one and pull out hole（10）,
Pipe in the elasticity（2）Internal diameter and holding force inner tube（1）External diameter be adapted, elasticity in pipe（2）External diameter and mould
Plate preformed hole（8）Diameter be adapted, it is described elasticity in pipe（2）Two ends be respectively for holding force inner tube（1）In embedded every
Tube opening end（2.1）And middle pipe curved surface blind end integrally formed with pipe in elasticity（2.2）, pipe in elasticity（2）It is whole
Body is enclosed within holding force inner tube（1）Outside,
The outer bagging of the isolation（3）Diameter and template preformed hole（8）External diameter be adapted, the outer bagging of the isolation（3）Two
End is respectively bagging openend（3.1）With bagging sealed end（3.2）, isolate outer bagging（3）Entirety is enclosed within pipe in elasticity（2）'s
Outside,
The closure termination（4）For inwall carries internal thread（11）Hard short tube, the internal thread（9）With external screw thread（11）Xiang Shi
Should, the closure termination（4）It is connected through a screw thread along holding force inner tube（1）Pipe range direction movement, the closure termination（4）One
It is drop-head round platform to hold（4.1）, the drop-head round platform（4.1）End face diameter and holding force inner tube（1）External diameter be adapted,
The tube drawing pin（5）External diameter pull out hole with tearing open（10）Diameter be adapted, tube drawing pin（5）Bottom insertion tear open and pull out hole（10）
It is interior.
2. the pipe drawing device of small-sized preformed hole according to claim 1, it is characterised in that：Said inner tube built-in end is inner tube
Drop-head round platform, the taper of inner tube drop-head round platform is 30-60 degree.
3. the pipe drawing device of small-sized preformed hole according to claim 1, it is characterised in that：More than two tearing open pulls out hole along pipe
Weekly interval is set.
4. the pipe drawing device of small-sized preformed hole according to claim 1 and 2, it is characterised in that：The holding force inner tube is hard
Matter plastic tube or metal tube.
5. the pipe drawing device of small-sized preformed hole according to claim 1, it is characterised in that：Pipe is rubber in the elasticity
Pipe or the prefabricated elastic tube of organic material.
6. the pipe drawing device of small-sized preformed hole according to claim 1, it is characterised in that：The outer bagging of the isolation is thickness
Plastic sheeting less than 0.025mm.
7. the pipe drawing device of small-sized preformed hole according to claim 1, it is characterised in that：The tube drawing pin（5）By reinforcing bar
Z-shaped is bent into, including bottom is inserted perpendicularly into and tears the inserting paragraph for pulling out hole open（5.1）, linkage section（5.2）With operation handle section（5.3）.
8. the template connecting structure of the pipe drawing device of the small-sized preformed hole according to claim 1-7 any one, including it is interior
Side template（6）And outboard template（7）, inner side template（6）And outboard template（7）On be provided with corresponding template preformed hole（8）, it is special
Levy and be：Also include sequentially passing through two template preformed holes（8）And it is stuck in pipe drawing device between the two, the holding force inner tube
（1）Length more than elasticity in pipe（2）, isolate outer bagging（3）Length, it is described elasticity in pipe（2）Length be less than every
From outer bagging（3）Length,
Said inner tube built-in end（1.1）, middle pipe curved surface blind end（2.2）With bagging blind end（3.2）End face stretch out in
Side template（6）Inner surface, said inner tube built-in end（1.1）Outer surface hold out against middle pipe curved surface blind end（2.2）'s
Inner wall surface and inner side template（6）Between by extrude elasticity in pipe seal, the bagging blind end（3.2）In overcoat every
Pipe curved surface blind end（2.2）Outer surface；
Said inner tube tears the portion with external threads for pulling out end open（9）Hole is pulled out with tearing open（10）It is exposed independent from outboard template（7）Outer surface, while
Middle pipe openend（2.1）With bagging openend（3.1）End face stretch out outboard template（7）Outer surface, the closure
Termination（4）Drop-head round platform（4.1）End face in outboard template（7）Outer surface position insertion inner tube tear open and pull out end（1.2）With
Middle pipe openend（2.1）Between crush seal.
9. the preformed hole construction method of the pipe drawing device of the small-sized preformed hole described in a kind of application claim 1-7 any one,
Characterized in that, construction procedure is as follows：
Step one, according to inner side template（6）And outboard template（7）On open up the size design pipe drawing device of preformed hole, and in work
Prefabricated holding force inner tube in factory（1）, elasticity in pipe（2）, closure termination（4）With tube drawing pin（5）, it is ready to isolate outer bagging（3）；
Step 2, installs preset die preformed hole（8）Inner side template（6）And outboard template（7）；
Step 3, at the scene by pipe in elasticity（2）It is enclosed within holding force inner tube（1）Outside, while middle pipe curved surface blind end
（2.2）The inner tube that is locked built-in end（1.1）；
Step 4, will isolate outer bagging（3）It is enclosed within pipe in elasticity（2）Outside, bagging blind end（3.2）The middle pipe that is locked is bent
Face closure end（2.2）Composition pipe drawing device；
Step 5, by pipe drawing device insert mould preformed hole in, inner tube built-in end（1.1）With inner side template（6）Between by squeeze
Pipe in compression elasticity（2）Sealing；
Step 6, will block termination（4）It is enclosed within middle pipe curved surface blind end（2.2）On, and it is connected through a screw thread rotation closure end
Head（4）Until termination will be blocked（4）Drop-head round platform（4.1）End face in outboard template（7）Outer surface position insertion hold
Power inner tube（1）With pipe in elasticity（2）Crush seal；
Step 7, in inner side template（6）And outboard template（7）Between casting concrete, scrape covering curing after flat surface；
Step 8, after the intensity of concrete meets pipe drawing device dismounting requirement, by tube drawing pin（5）Insertion is torn open and pulls out hole（10）In,
Pull out holding force inner tube（1）；
Step 9, stretches into pipe in elasticity in the concrete preformed hole of shaping（2）Pull out, isolate outer bagging（3）With concrete
Component forms one, is not required to extract.
10. the preformed hole construction method of the pipe drawing device of the small-sized preformed hole of application according to claim 9, its feature exists
In：In the step 9, in middle pipe openend（2.1）Also be preset with to tear open and pull out hole, by tube drawing pin insert this tear open pull out in hole extract
Pipe in elasticity.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955091.3A CN106760512B (en) | 2016-11-03 | 2016-11-03 | A kind of pipe drawing device, template connecting structure and its construction method of small-sized preformed hole |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610955091.3A CN106760512B (en) | 2016-11-03 | 2016-11-03 | A kind of pipe drawing device, template connecting structure and its construction method of small-sized preformed hole |
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| CN106760512B CN106760512B (en) | 2019-06-07 |
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| CN107401127A (en) * | 2017-09-12 | 2017-11-28 | 苏交科集团股份有限公司 | A kind of the setting device and its method to set up of prefabricated culvert connecting pipe |
| CN109834818A (en) * | 2019-01-22 | 2019-06-04 | 北京汇丰鸿信科技有限公司 | A kind of manufacturing process of reinforcing bar grouting connection grout hole and plasma discharge hole |
| CN112376632A (en) * | 2020-11-05 | 2021-02-19 | 盐城市泰康工程检测有限公司 | A pore-forming extraction pipe for pile foundation quality testing |
| CN113062589A (en) * | 2021-04-13 | 2021-07-02 | 中国十七冶集团有限公司 | Pre-buried block terminal hole mould in brickwork wall |
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| JP3926177B2 (en) * | 2002-03-20 | 2007-06-06 | 株式会社カネカ | Molded body for boxing |
| CN102493479A (en) * | 2011-12-15 | 2012-06-13 | 中国一冶集团有限公司 | Construction method for circular foundation bolt hole reserved for equipment foundation |
| CN203347229U (en) * | 2013-06-27 | 2013-12-18 | 国家电网公司 | Bolt preformed hole die |
| CN203440830U (en) * | 2013-07-25 | 2014-02-19 | 中冶天工集团有限公司 | Device for reserving bolt holes |
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| CN112376632A (en) * | 2020-11-05 | 2021-02-19 | 盐城市泰康工程检测有限公司 | A pore-forming extraction pipe for pile foundation quality testing |
| CN112376632B (en) * | 2020-11-05 | 2022-02-01 | 盐城市泰康工程检测有限公司 | A pore-forming extraction pipe for pile foundation quality testing |
| CN113062589A (en) * | 2021-04-13 | 2021-07-02 | 中国十七冶集团有限公司 | Pre-buried block terminal hole mould in brickwork wall |
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