CN206736920U - A kind of internal-expansion type pipe drawing device - Google Patents
A kind of internal-expansion type pipe drawing device Download PDFInfo
- Publication number
- CN206736920U CN206736920U CN201720546471.1U CN201720546471U CN206736920U CN 206736920 U CN206736920 U CN 206736920U CN 201720546471 U CN201720546471 U CN 201720546471U CN 206736920 U CN206736920 U CN 206736920U
- Authority
- CN
- China
- Prior art keywords
- steel
- block
- pipe pile
- tooth block
- lift block
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of internal-expansion type pipe drawing device,Lift block and polylith including up-small and down-big circular cone structure are used for the tooth block being used in combination with the outer conical surface of lift block,The tooth block is attached on the inwall of steel-pipe pile at work,The angle that tooth block is used between the side being engaged with lift block and steel-pipe pile inwall be formed is less than Self-locking angle,The small end of the lift block sets up the connector I being equipped with for being connected with force applying device separately,Need not earth excavation and welding crotch in the case of,It is less than Self-locking angle using the angle formed between tooth block and steel-pipe pile inwall,Tooth block is set to be attached to steel-pipe pile,Do not influenceed by own wt and external force size and produce movement,During the moving up of lift block being driven with crane,Lift block constantly extrudes tooth block,The more press the more tight,The axial force acted on steel-pipe pile is increasing,Crane is promoted smoothly to extract the steel-pipe pile cut away,Unnecessary potential safety hazard is prevented,Substantially increase operating efficiency.
Description
Technical field
It the utility model is related to civil engineering field of mechanical technique, more particularly to a kind of internal-expansion type pipe drawing device.
Technical background
At present, it is mostly very thick Soft Soil Layer in coastal alluvial plain area, soil property, low compressibility supporting course is very deep, pile sinking
When need to use the very big pile monkey of impulsive force, with general armored concrete or prestressed-concrete pile, it is difficult to adapt to, therefore use steel more
Pile tube.The sequence of construction of steel-pipe pile is：-- movement of stake machine is in place -- to hang stake -- pitching pile -- hammering for stake machine installation（Press-in）Sink --
Pile extension -- hammering（Press-in）To projected depth, -- the unnecessary steel-pipe pile in internal cutting top -- extracting the steel pipe after cutting -- is attached the names of pre-determined candidates, steel pipe
Stake is driven underground, and is cut the earth for ease of foundation ditch mechanization, and steel-pipe pile more than substrate will be cut, due to around by underground water and soil layer
Surround, can only be pulled out in the pipe internal cutting of steel-pipe pile, the steel-pipe pile after cutting with extracting apparatus.The method that past is commonly used
It is that certain depth steel pipe pile crown is suitably excavated at the top of steel-pipe pile, then welds crotch in steel-pipe pile outer wall, be entangled in steel strand wires
Lifted by crane and extracted with crane on crotch, be to first have to excavate certain earth volume the shortcomings that this method, its is secondary in steel-pipe pile
Crotch is welded in side wall, because the stability that crane lifting is extracted is difficult control, so as to there is potential safety hazard.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of internal-expansion type pipe drawing device, need not excavate
Cubic metre of earth and in the side wall of steel-pipe pile weld crotch in the case of, it becomes possible to steel-pipe pile is smoothly extracted, improve production efficiency
While, prevent unnecessary potential safety hazard.
The utility model employs following technical scheme：A kind of internal-expansion type pipe drawing device, including a up-small and down-big circle
The lift block and polylith of frustum structure are used for the tooth block being used in combination with the outer conical surface of lift block, and the tooth block is at work
It is attached on the inwall of steel-pipe pile, the angle that tooth block is used between the side being engaged with lift block and steel-pipe pile inwall be formed is small
In Self-locking angle, the small end of the lift block sets up the connector I being equipped with for being connected with force applying device separately.
Further, the lift block small end, which sets up separately, is equipped with connecting hole, and the connector I is to be arranged in connecting hole
Connecting rope I.
Further, the polylith tooth block is connected by respective connecting rope II with an adapter sleeve respectively.
Further, the connecting rope I is located in adapter sleeve from bottom to top, positioned at the upper of adapter sleeve in connecting rope I
Side is provided with the limiting card for preventing adapter sleeve from coming off, and is provided with connecting rope I below adapter sleeve for accepting
The limiting card of adapter sleeve.
Further, the quantity of the tooth block is four pieces.
The beneficial effects of the utility model are：The utility model is simple in construction, easy to operate, need not earth excavation and weldering
In the case of connecing crotch, it is less than Self-locking angle using the angle formed between tooth block and steel-pipe pile inwall, tooth block is attached to steel pipe
Stake, is not influenceed by own wt and external force size and produces movement, during driving the moving up of lift block with crane, lifting
Block constantly extrudes tooth block, the more presses the more tight, and the axial force acted on steel-pipe pile is increasing, the steel pipe for promoting crane to cut away
Stake is smoothly extracted, and is saved intermediate link, has been prevented unnecessary potential safety hazard, substantially increased operating efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure：It is 1 steel-pipe pile, 2 tooth blocks, 3 lift blocks, 4 connecting holes, 5 connecting ropes II, 6 connecting ropes I, 7 adapter sleeves, 8 spacing
Card.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Refer to shown in Fig. 1, a kind of internal-expansion type pipe drawing device, include the lift block of a up-small and down-big circular cone structure
3 and polylith be used for the tooth block 2 that is used in combination with the outer conical surface of lift block 3, the tooth block 2 in the present embodiment can be four pieces, institute
Tooth block 2 is stated at work around being attached on the inwall of steel-pipe pile 1, and tooth block 2 is used for side and the steel pipe being engaged with lift block 3
The angle formed between 1 inwall of stake is less than Self-locking angle.
Locking phenomenon refers to that an object is static by stiction effect, when being attempted to make this object of which movement with external force
When, external force is bigger, and object is extruded tighter, is less susceptible to move, i.e. the protective capability of stiction is stronger.Condition of self-locking is
Friction tangent of an angle is equal to static friction factor, when the smart timing of friction factor one, occurring for self-locking are only relevant with angle of friction and power
Size is unrelated；Because the static friction factor between different materials is different, tooth block uses material as iron in the present embodiment, steel-pipe pile institute
The material used is steel, and it is 0.3 to find steel with the static friction factor under cast iron dry conditions according to coefficient of friction table, according to certainly
Bolt part friction tangent of an angle is equal to static friction factor, calculates tooth block 2 and side and the inwall of steel-pipe pile 1 are engaged with lift block 3
Between the angle that is formed be less than 16.9 °, tooth block 2 can be enable to be firmly attached on steel-pipe pile 1, not by the own wt of tooth block 2
Influence with external force size and produce movement.
The small end of the lift block 3 sets up the connector I being equipped with for being connected with force applying device separately；The lift block 3 is small
End, which is set up separately, is equipped with connecting hole 4, and the connector I is the connecting rope I 6 being arranged in connecting hole 4；The polylith tooth block 2 is distinguished
It is connected by respective connecting rope II 5 with an adapter sleeve 7, the connecting rope I 6 is located in adapter sleeve 7 from bottom to top,
The top of adapter sleeve 7 is provided with the limiting card 8 for preventing adapter sleeve 7 from coming off in connecting rope I 6, it is upper in connecting rope I 6
The lower section of adapter sleeve 7 is provided with the limiting card 8 for accepting adapter sleeve 7.
In use, the connecting hole 4 of lift block 3 is connected by workmen with connecting rope I 6, then four pieces of tooth blocks 2 are passed through
Respective connecting rope II 5 is connected with adapter sleeve 7, and connecting rope I 6 is hung on hoist lifting hook through adapter sleeve 7 from bottom to top, uses
Limiting card 8 carries out spacing to adapter sleeve 7, and then lift block 3 and tooth block 2 are put into steel-pipe pile 1, tooth block 2 is attached to steel pipe
In stake 1, because the angle that tooth block 2 is formed between the inwall of steel-pipe pile 1 at work is less than Self-locking angle, tooth block 2 is set tightly to adhere to
On steel-pipe pile 1, movement is not produced with the influence of own wt and external force size, as crane drives moving up for lift block 3
During, lift block 3 constantly extrudes tooth block 2, the more presses the more tight, and the axial force acted on steel-pipe pile 1 is increasing, promotes crane
The steel-pipe pile 1 cut away is smoothly extracted.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (5)
- A kind of 1. internal-expansion type pipe drawing device, it is characterised in that：Include the lift block of a up-small and down-big circular cone structure（3）With Polylith is used for and lift block（3）The tooth block that is used in combination of outer conical surface（2）, the tooth block（2）Steel is attached at work Pile tube（1）Inwall on, tooth block（2）For with lift block（3）The side being engaged and steel-pipe pile（1）The folder formed between inwall Angle is less than Self-locking angle, the lift block（3）Small end set up the connector I being equipped with for being connected with force applying device separately.
- A kind of 2. internal-expansion type pipe drawing device as claimed in claim 1, it is characterised in that：The lift block（3）Small end sets up separately It is equipped with connecting hole（4）, the connector I is to be arranged on connecting hole（4）In connecting rope I（6）.
- A kind of 3. internal-expansion type pipe drawing device as claimed in claim 2, it is characterised in that：The polylith tooth block（2）Pass through respectively Respective connecting rope II（5）With an adapter sleeve（7）It is connected.
- A kind of 4. internal-expansion type pipe drawing device as described in claim 3, it is characterised in that：The connecting rope I（6）From bottom to top It is located in adapter sleeve（7）In, in connecting rope I（6）It is upper to be located at adapter sleeve（7）Top be provided with for preventing adapter sleeve（7）It is de- The limiting card fallen（8）, in connecting rope I（6）It is upper to be located at adapter sleeve（7）Lower section be provided with for accepting adapter sleeve（7）It is spacing Card（8）.
- A kind of 5. internal-expansion type pipe drawing device as claimed in claim 1, it is characterised in that：The tooth block（2）Quantity be four pieces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546471.1U CN206736920U (en) | 2017-05-17 | 2017-05-17 | A kind of internal-expansion type pipe drawing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720546471.1U CN206736920U (en) | 2017-05-17 | 2017-05-17 | A kind of internal-expansion type pipe drawing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206736920U true CN206736920U (en) | 2017-12-12 |
Family
ID=60566054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720546471.1U Expired - Fee Related CN206736920U (en) | 2017-05-17 | 2017-05-17 | A kind of internal-expansion type pipe drawing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206736920U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661053A (en) * | 2018-06-07 | 2018-10-16 | 德睿盛兴（大连）装配式建筑科技有限公司 | The full protecting pipe pipe drawing device of bored concrete pile |
| CN112459092A (en) * | 2020-11-27 | 2021-03-09 | 中铁二十局集团第三工程有限公司 | Steel sheet pile cofferdam and dismantling method thereof |
-
2017
- 2017-05-17 CN CN201720546471.1U patent/CN206736920U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661053A (en) * | 2018-06-07 | 2018-10-16 | 德睿盛兴（大连）装配式建筑科技有限公司 | The full protecting pipe pipe drawing device of bored concrete pile |
| CN108661053B (en) * | 2018-06-07 | 2020-12-04 | 德睿盛兴（大连）装配式建筑科技有限公司 | Cast-in-place pile full-sheath tube drawing device |
| CN112459092A (en) * | 2020-11-27 | 2021-03-09 | 中铁二十局集团第三工程有限公司 | Steel sheet pile cofferdam and dismantling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 Termination date: 20180517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |