CN205663984U - Novel tube expander - Google Patents
Novel tube expander Download PDFInfo
- Publication number
- CN205663984U CN205663984U CN201620449260.1U CN201620449260U CN205663984U CN 205663984 U CN205663984 U CN 205663984U CN 201620449260 U CN201620449260 U CN 201620449260U CN 205663984 U CN205663984 U CN 205663984U
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- CN
- China
- Prior art keywords
- shrouding
- resisting
- wear
- tube expander
- split body
- 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.)
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a novel tube expander belongs to expand tube technical field. It includes tube expander that a plurality of split body groups become, is equipped with wear -resisting shrouding in the gap department of two adjacent splits bodies, wear -resisting shrouding is fixed in on one of them split body through wear -resisting shrouding gim peg, there is outstanding sealed face in the external surface of split on the wear -resisting shrouding, the tube expander split body is gone up to open has one and wear -resisting shrouding matched with shallow slot.
Description
Technical field
This utility model relates to a kind of novel tube expander, belongs to tube expansion technique field.
Background technology
Changing new for old in construction at municipal drainage pipe no-dig technique, existing tube expander has the disadvantage that: first tube expander is each
Split body gap uses elastic filler to seal, and sealing effectiveness is bad, and processing and manufacturing difficulty is big.Secondly tube expander outer surface by
Direct and pipe of cement inwall severe friction, quick abrasion, maintenance difficult in construction.
Summary of the invention
For the above-mentioned problems in the prior art, this utility model provides a kind of novel tube expander, uses one
New sealing means seals, good sealing effect, and easy to process, changes simple and fast.It addition, sealing of the present utility model
Device also has the effect of protection tube expander outer surface, it is to avoid tube expander outer surface contacts with the direct of pipe of cement inwall, subtracts
Less wear, extends tube expander service life.
This utility model is achieved by the following technical solution: a kind of novel tube expander, and described tube expander has many
Individual split body, it is characterised in that: being provided with wear-resisting shrouding at the gap of two adjacent split bodies, described wear-resisting shrouding is by resistance to
Mill shrouding gim peg is fixed on one of them split body, and described wear-resisting shrouding has the sealing protruding from split body outer surface
Face.
A shallow slot matched with wear-resisting shrouding is had on described tube expander split body.
This utility model good sealing effect, and wear-resisting shrouding is easy to process, changes simple and fast.It addition, this utility model
Sealing device also there is the effect of protection tube expander outer surface, it is to avoid tube expander outer surface directly connects with pipe of cement inwall
Touch, reduce the abrasion of tube expander, extend tube expander service life.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model in detailed description of the invention；
Fig. 2 is that the A-A of Fig. 1 is to sectional view；
Wherein, 1, wear-resisting shrouding, 2, split body, 3, wear-resisting shrouding gim peg.
Detailed description of the invention
Below by the embodiment of indefiniteness and combine accompanying drawing this utility model is further described:
As shown in drawings, a kind of novel tube expander, described tube expander has multiple split body 2, it is characterised in that: adjacent
Two split bodies 2 gap at be provided with wear-resisting shrouding 1, described wear-resisting shrouding 1 is fixed on wherein by wear-resisting shrouding gim peg 3
A split body 2 on, described wear-resisting shrouding 1 has the sealing surface 11 protruding from split body 2 outer surface.
A shallow slot matched with wear-resisting shrouding 1 is had on described tube expander split body 2.
When tube expander works, wear-resisting shrouding 1 can effectively cover the gap between two split bodies, prevents foreign body from falling
Enter inside tube expander.The sealing surface 11 of described wear-resisting shrouding 1 is higher than the outer surface of split body 2, when tube expander works and cement
Pipes etc. contact, it is to avoid tube expander outer surface contacts with the direct of pipe of cement inwall, decreases the abrasion of tube expander, extends swollen
Pipe device service life.Wear-resisting shrouding uses wear-resisting shrouding gim peg 3 to fix, and after may wear to a certain degree, can replace easily
Change.
Other parts in the present embodiment use prior art, do not repeat them here.
Claims (2)
1. a novel tube expander, described tube expander has multiple split body (2), it is characterised in that: at two points of adjacent lobes
Being provided with wear-resisting shrouding (1) at the gap of body (2), described wear-resisting shrouding (1) is fixed on therein by wear-resisting shrouding gim peg (3)
On one split body (2), described wear-resisting shrouding (1) has the sealing surface (11) protruding from split body (2) outer surface.
Novel tube expander the most according to claim 1, it is characterised in that: have one on described tube expander split body (2)
The shallow slot matched with wear-resisting shrouding (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449260.1U CN205663984U (en) | 2016-05-17 | 2016-05-17 | Novel tube expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620449260.1U CN205663984U (en) | 2016-05-17 | 2016-05-17 | Novel tube expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205663984U true CN205663984U (en) | 2016-10-26 |
Family
ID=57160643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620449260.1U Active CN205663984U (en) | 2016-05-17 | 2016-05-17 | Novel tube expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205663984U (en) |
-
2016
- 2016-05-17 CN CN201620449260.1U patent/CN205663984U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |