CN201934822U - Pipeline connecting piece - Google Patents
Pipeline connecting piece Download PDFInfo
- Publication number
- CN201934822U CN201934822U CN2011200167919U CN201120016791U CN201934822U CN 201934822 U CN201934822 U CN 201934822U CN 2011200167919 U CN2011200167919 U CN 2011200167919U CN 201120016791 U CN201120016791 U CN 201120016791U CN 201934822 U CN201934822 U CN 201934822U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- pipeline
- connecting piece
- gland nut
- spring tube
- 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 relates to a pipeline connecting piece, in particular to a pipeline connecting piece which is used for an elastic material and a connection port part requiring the reliable sealing. The pipeline connecting piece comprises a connecting rod and a compression nut which is connected onto the connecting rod in a threading way, and the pipeline connecting piece is characterized in that: the connecting rod is a hollow tubular shape, one end of the connecting rod is fixedly connected with a conical expansion body, the outer diameter of the expansion body part on the connecting rod is more than the outer diameters of other parts of the connecting rod, the other end of the connecting rod is provided with outer threads, an elastic pipe is sleeved on the connecting rod between the conical expansion body and the compression nut, and a rigid ring is sleeved at the outer side of the elastic pipe. The pipeline connecting piece has a simple structure, is convenient to use, is quick to install, and has good sealability.
Description
Technical field
The utility model relates to a kind of pipe joint, especially a kind ofly is used for the pipe joint that elastic material, interface section need reliable sealing.
Background technique
Connection between the pipeline is adopted usually and is threaded, but tapping needs special tool on pipeline, wastes time and energy, inefficiency.Existing various pipeline fast-assembling links can not solve sealing problem again well.Produce, the connection of a large amount of plastic tubes that use, PPR pipe needs a kind of not only rapid and convenient but also connection set that can reliable sealing in the life.
Summary of the invention
The purpose of this utility model provide a kind of simple in structure, easy to use, install fast, the pipe joint of good seal performance.
The utility model is that the technological scheme that the technical solution problem is adopted is:
Pipe joint described in the utility model comprises connecting rod, by being threaded in the gland nut on the connecting rod, it is characterized in that: described connecting rod is the tubulose of hollow, the fixedly connected taper expander of one end of connecting rod, the external diameter of expander part is greater than the external diameter of other parts on the connecting rod, the other end of connecting rod has outside thread, be set with spring tube on the connecting rod between taper expander and the gland nut, the outside of described spring tube is set with stiffening ring.
Described stiffening ring is coaxial with gland nut, and the upper end of stiffening ring is fixedly connected on the lower end surface of gland nut.
The big up and small down wedge shape in tube wall cross section of described spring tube.
Adopt after the technique scheme, this pipe joint is simple in structure, easy to use, installation is quick, good seal performance.
Description of drawings
Fig. 1 is an embodiment's of the utility model a structural representation.
Fig. 2 is the schematic representation of Fig. 1 embodiment user mode.
Fig. 3 is the gland nut of another enforcement and the structural representation of stiffening ring.
Fig. 4 is the structural representation of another embodiment's spring tube.
Embodiment
As shown in Figure 1, pipe joint described in the utility model comprise connecting rod 3, by being threaded in the gland nut 2 on the connecting rod 3.Described connecting rod 3 is the tubulose of hollow, the fixedly connected taper expander of one end of connecting rod 3, the external diameter of expander part is greater than the external diameter of other parts on the connecting rod 3, the other end of connecting rod 3 has outside thread, be set with spring tube 4 on the connecting rod 3 between taper expander and the gland nut 2, the outside of described spring tube 4 is set with stiffening ring 5.Spring tube 4 can adopt the stronger made of elasticity such as rubber, plastics.Certainly, also can adopt copper, aluminium or elasticity, alloy material that ductility is good.
In addition, described stiffening ring 5 can adopt absolute construction as shown in Figure 1 and Figure 2, also can adopt as shown in Figure 3 and gland nut 2 incorporate structures, this moment, stiffening ring 5 was coaxial with gland nut 2, and the upper end of stiffening ring 5 is fixedly connected on the lower end surface of gland nut 2.
Have annular boss at gland nut 2 towards a side of spring tube 4, the internal diameter of described annular boss, external diameter and spring tube 4 internal diameter, the external diameter under the non-stress state is suitable, promptly the diameter of this annular boss and wall thickness all equate with spring tube 4, perhaps in the scope that tolerance fit allows.The effect of this annular boss is better to compress spring tube 4, and can not be subjected to the interference of object on every side.
In the time of actual the use, the maximum outside diameter outline of the taper expander on the connecting rod 3 is less than or equal to the internal diameter of pipeline to be connected 1, it can just be put in the pipeline 1 get final product; The internal diameter of stiffening ring 5 is larger than or equals the external diameter of pipeline 1, makes it just can be sleeved on the outside of pipeline 1.Spring tube 4 under the non-stress state internal diameter and the external diameter of connecting rod 3 be complementary, the external diameter of spring tube 4 under the non-stress state is not more than the maximum outside diameter of taper expander at least, preferably equals the maximum outside diameter of taper expander.Stiffening ring 5 is enclosed within the outside of pipeline 1, the connecting rod 3 that will have spring tube 4 is put in the pipeline 1, after spring tube 4 enters in the thin-walled hole fully, rotatably compress nut 2, promote spring tube 4 to lower slider, because of spring tube 4 has certain elasticity, under the squeezing action of gland nut 2, spring tube 4 can slide on the taper expander.As shown in Figure 2, this moment the taper expander maximum outside diameter add spring tube 4 wall thickness greater than the internal diameter of pipeline 1, make the outer wall differential expansion of pipeline 1.When gland nut 2 moved down, stiffening ring 5 also moved down simultaneously, and stiffening ring 5 is inflated part when arriving the expansion position of pipelines 1 and blocks, and can not continue to move down, and tightens the end that gland nut 2 can firmly be connected to this pipe joint pipeline this moment.
After connecting rod 3 was fixed, the unnecessary helical thread portion in gland nut 2 upper ends can be used for connecting other pipeline.The cavity of connecting rod 3 is used for the liquid in the connecting pipe.
In addition, can also prepare another same structure but the thicker pipe joint of connecting rod 3, on thicker connecting rod 3, internal thread is set, cooperates with outside thread on the thin connecting rod, so just can two pipelines that pipe joint is installed are direct with being threaded.
Claims (3)
1. pipe joint, comprise connecting rod (3), by being threaded in the gland nut (2) on the connecting rod (3), it is characterized in that: described connecting rod (3) is the tubulose of hollow, the fixedly connected taper expander of one end of connecting rod (3), connecting rod (3) is gone up the external diameter of the external diameter of expander part greater than other parts, the other end of connecting rod (3) has outside thread, be set with spring tube (4) on the connecting rod (3) between taper expander and the gland nut (2), the outside of described spring tube (4) is set with stiffening ring (5).
2. pipe joint according to claim 1 is characterized in that: described stiffening ring (5) is coaxial with gland nut (2), and the upper end of stiffening ring (5) is fixedly connected on the lower end surface of gland nut (2).
3. pipe joint according to claim 1 and 2 is characterized in that: the big up and small down wedge shape in tube wall cross section of described spring tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200167919U CN201934822U (en) | 2011-01-19 | 2011-01-19 | Pipeline connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200167919U CN201934822U (en) | 2011-01-19 | 2011-01-19 | Pipeline connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201934822U true CN201934822U (en) | 2011-08-17 |
Family
ID=44446341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200167919U Expired - Fee Related CN201934822U (en) | 2011-01-19 | 2011-01-19 | Pipeline connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201934822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042449A (en) * | 2011-01-19 | 2011-05-04 | 王涵琳 | Pipe connecting piece |
| WO2012092807A1 (en) * | 2011-01-03 | 2012-07-12 | Wang Hanlin | Thin-wall pipe fitting |
-
2011
- 2011-01-19 CN CN2011200167919U patent/CN201934822U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012092807A1 (en) * | 2011-01-03 | 2012-07-12 | Wang Hanlin | Thin-wall pipe fitting |
| CN102042449A (en) * | 2011-01-19 | 2011-05-04 | 王涵琳 | Pipe connecting piece |
| CN102042449B (en) * | 2011-01-19 | 2012-06-20 | 王涵琳 | Pipe connecting piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20120119 |