CN203193179U - Expansion pipe for pre-expanding middle joint - Google Patents
Expansion pipe for pre-expanding middle joint Download PDFInfo
- Publication number
- CN203193179U CN203193179U CN 201320141953 CN201320141953U CN203193179U CN 203193179 U CN203193179 U CN 203193179U CN 201320141953 CN201320141953 CN 201320141953 CN 201320141953 U CN201320141953 U CN 201320141953U CN 203193179 U CN203193179 U CN 203193179U
- Authority
- CN
- China
- Prior art keywords
- divergent channel
- convergent divergent
- expansion pipe
- transition joint
- middle joint
- 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 - Lifetime
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to an expansion pipe for pre-expanding a middle joint. The diameter of one end of the expansion pipe is greater than that of the other end, so that axial cross section of the expansion pipe is frustum-shaped, a sealing cap is sleeved on the end in a lower diameter of the expansion pipe, and a discharge groove is opened in the surface of the expansion pipe. Compared with the prior art, the expansion pipe for pre-expanding the middle joint has the advantages including convenient use and simple structure.
Description
Technical field
The utility model relates to a kind of convergent divergent channel, especially relates to a kind of convergent divergent channel for the predilation transition joint.
Background technology
Cable intermediate joint is a kind of annex commonly used in the electric power erection construction.In the prior art, the most frequently used is the shrinkage transition joint, and the disposable injection moulding sulfidization molding of silicon rubber is generally adopted in the shrinkage transition joint, expands preservation in factory then.Convergent divergent channel in the market mostly is lead-in and is entwined, and can damage product inside after expansion, and easily lead-in be ruptured in the pull process, causes failure is installed.A small amount of similar integral type convergent divergent channel needs to use specific purpose tool to unload product after expansion, installs and inconvenience, can influence the installation effectiveness of transition joint.
The utility model content
The purpose of this utility model is exactly the convergent divergent channel that provides a kind of in order to overcome the defective that above-mentioned prior art exists and conveniently take off, can not damage transition joint and cable.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of convergent divergent channel for the predilation transition joint, the diameter of an end of this convergent divergent channel make the shaft section of convergent divergent channel be frustum greater than the other end, and the less end of diameter is arranged with sealing cap on the convergent divergent channel, and the convergent divergent channel surface offers blowpit.
Described blowpit is provided with at least two, only need utilize general tool can take off convergent divergent channel, can not destroy and cause cable bad.
The smooth outer surface of described convergent divergent channel.
Compared with prior art, the utility model is owing to be equipped with sealing cap at convergent divergent channel one end, and there is gradient convergent divergent channel in self, so when taking off sealing cap, the help of tool free or external force, the transition joint meeting comes off automatically, owing to be provided with blowpit in extension tube, when needs take off, can directly draw back blowpit convergent divergent channel is taken off, disposable use, very convenient.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Embodiment
As shown in Figure 1, a kind of convergent divergent channel for the predilation transition joint, the diameter of one end of this convergent divergent channel 1 is greater than the other end, make the shaft section of convergent divergent channel 1 be frustum, the less end of diameter is arranged with sealing cap 2 on the convergent divergent channel, the convergent divergent channel surface offers at least two blowpits 3, can directly draw back blowpit with hand or instrument and take off convergent divergent channel, disposable use.Convergent divergent channel utilizes the mould one-shot forming, and smooth surface can not cause transition joint inside and damage and stay impression.
When carrying out predilation, evenly smear silicone grease on the surface, inside of transition joint, utilize the dilator expansion on convergent divergent channel transition joint, near the less end of convergent divergent channel diameter, finish by expansion as far as possible for joint location.When transition joint is installed, the indirect headgear after the expansion to cable and make spacing mark, is backed out spiral sealing cap 2, the transition joint meeting drops to cable automatically with the inclined surface of convergent divergent channel, when noting coming off joint one end is aimed at spacing mark, treat that joint comes off fully after, installation.
Claims (3)
1. a convergent divergent channel that is used for the predilation transition joint is characterized in that the diameter of an end of this convergent divergent channel makes the shaft section of convergent divergent channel be frustum greater than the other end, and the less end of diameter is arranged with sealing cap on the convergent divergent channel, and the convergent divergent channel surface offers blowpit.
2. a kind of convergent divergent channel for the predilation transition joint according to claim 1 is characterized in that described blowpit is provided with at least two.
3. a kind of convergent divergent channel for the predilation transition joint according to claim 1 is characterized in that the smooth outer surface of described convergent divergent channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141953 CN203193179U (en) | 2013-03-26 | 2013-03-26 | Expansion pipe for pre-expanding middle joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141953 CN203193179U (en) | 2013-03-26 | 2013-03-26 | Expansion pipe for pre-expanding middle joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203193179U true CN203193179U (en) | 2013-09-11 |
Family
ID=49110009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320141953 Expired - Lifetime CN203193179U (en) | 2013-03-26 | 2013-03-26 | Expansion pipe for pre-expanding middle joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203193179U (en) |
-
2013
- 2013-03-26 CN CN 201320141953 patent/CN203193179U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |
|
| CX01 | Expiry of patent term |