CN211574454U - Steel pipe connection structure that leakproofness is good - Google Patents
Steel pipe connection structure that leakproofness is good Download PDFInfo
- Publication number
- CN211574454U CN211574454U CN201922389867.1U CN201922389867U CN211574454U CN 211574454 U CN211574454 U CN 211574454U CN 201922389867 U CN201922389867 U CN 201922389867U CN 211574454 U CN211574454 U CN 211574454U
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- CN
- China
- Prior art keywords
- steel pipe
- connecting piece
- nut
- leakproofness
- connection structure
- 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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- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
Abstract
The utility model is suitable for a technical field is connected to the steel pipe, provides a steel pipe connection structure that leakproofness is good, including the connecting piece, the connecting piece both sides are connected with the steel pipe, steel pipe outside cover has the nut, just the nut is even with the threaded connection mode the both ends of connecting piece, the steel pipe with the connecting piece with the contact site of nut scribbles sealed glue, the connecting piece is the plastic part, the molding has the external screw thread on the outer wall at connecting piece both ends, be equipped with the shoulder hole on the connecting piece, the major diameter of shoulder hole with the steel pipe external diameter is the same, the path of shoulder hole with the steel pipe internal diameter is the same. The utility model provides high steel pipe junction's leakproofness and joint strength.
Description
Technical Field
The utility model belongs to the technical field of the steel pipe is connected, especially, relate to a steel pipe connection structure that leakproofness is good.
Background
Since one steel pipe has a limited length, it is generally necessary to connect a plurality of steel pipes when laying a pipeline. The pipeline connecting process needs to firstly ensure the sealing performance of the pipeline connecting part, and then requires simple installation process and convenient operation. The steel pipe connection method is roughly classified into rigid connection, flexible connection, and flexible-rigid connection, and in the prior art, welding, threads, flanges, memory alloys, bonding, telescopic pipes, elastic pipes, and the like are commonly used. However, in the above method, some operations are complicated, or the joint itself is expensive, so that the installation is not changed, and further, the problem of sealing property is still to be studied.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel pipe connection structure that leakproofness is good aims at solving the problem that the leakproofness is not enough, intensity is low is connected to the steel pipe.
The utility model discloses a realize like this, including the connecting piece, the connecting piece both sides are connected with the steel pipe, and steel pipe outside cover has the nut, and the nut with threaded connection mode even at the both ends of connecting piece, the steel pipe scribbles sealed glue with the contact site of connecting piece and nut, the connecting piece is the plasticity piece, the molding has the external screw thread on the outer wall at connecting piece both ends, is equipped with the shoulder hole on the connecting piece, the big footpath of shoulder hole is the same with the steel pipe external diameter, the path of shoulder hole is the same with the steel pipe.
Furthermore, the outer surface of the nut is provided with a uniform friction belt to increase the screwing friction force, and the inner wall of the nut is molded with internal threads which have gradients.
Furthermore, the nut is in over-fit with the steel pipe, and the connecting piece is in interference fit with the steel pipe.
The utility model has the advantages that: the joint of two steel pipes scribbles sealed glue, has strengthened the leakproofness to the nut is at the rotating in-process, and the internal thread of slope can make plastic connecting piece both ends produce slight deformation, makes the connecting piece both ends shrink, thereby compresses tightly the steel pipe, makes joint strength can guarantee. Therefore, the utility model provides high steel pipe junction's leakproofness and joint strength.
Drawings
Fig. 1 is a front view of a steel pipe connection structure with good sealing performance provided by the present invention.
Fig. 2 is a cross-sectional view of a steel pipe connection structure with good sealing performance provided by the present invention.
Fig. 3 is a side view of the connecting piece of the steel pipe connecting structure provided by the present invention.
Fig. 4 is a side view of the nut of the steel pipe connection structure of the present invention with good sealing performance.
In the figure: 1. a steel pipe; 2. a connecting member; 3. a nut; 4. sealing glue; 5. a stepped hole; 6. an external thread; 7. a friction belt; 8. an internal thread.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example one
As shown in fig. 1-4, the utility model provides a steel pipe connection structure that leakproofness is good, including connecting piece 2, 2 both sides of connecting piece are connected with steel pipe 1, 1 outside cover of steel pipe has nut 3, and nut 3 is with the both ends of threaded connection mode even at connecting piece 2, steel pipe 1 scribbles sealed glue 4 with connecting piece 2 and nut 3's contact site, connecting piece 2 is the plastic part, the molding has external screw thread 6 on the outer wall at connecting piece 2 both ends, be equipped with shoulder hole 5 on connecting piece 2, shoulder hole 5's major diameter is the same with 1 external diameter of steel pipe, shoulder hole 5's path is the same with 1 internal diameter of steel pipe, nut 3's surface is equipped with even friction area 7, in order to increase the tightening frictional force, the molding has internal thread 8 on the nut 3 inner wall, internal thread 8 has the inclination, nut 3 excessively cooperates with steel pipe 1, connecting piece.
Example two
As shown in fig. 1-4, firstly, sealant 4 is coated on the connecting end of the steel tube 1 and the inner surface of the connecting piece 2, then two steel tubes 1 are inserted into the stepped holes 5 on both sides of the connecting piece 2, then sealant 4 is coated on the inner surface of the nut 3, the nut 3 is screwed on the connecting piece 2, so that the external thread 6 and the internal thread 8 are connected in a matching way, and because the internal thread 8 on the nut 3 has an inclined angle, the plastic connecting piece 2 is deformed in the screwing process, so that the port is contracted, and the steel tubes 1 can be pressed tightly.
The joint of two steel pipes 1 scribbles sealed glue 4, has strengthened the leakproofness to nut 3 is at the rotating in-process, and the internal thread 8 of slope can make 2 both ends of plastic connecting piece produce slight deformation, makes 2 both ends of connecting piece shrink, thereby compresses tightly steel pipe 1, makes joint strength can guarantee. Therefore, the utility model provides high steel pipe junction's leakproofness and joint strength.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (2)
1. A steel pipe connecting structure with good sealing performance is characterized by comprising a connecting piece, wherein steel pipes are connected to two sides of the connecting piece, nuts are sleeved on the outer sides of the steel pipes, the nuts are connected to two ends of the connecting piece in a threaded connection mode, the contact parts of the steel pipes, the connecting piece and the nuts are coated with sealing glue, the connecting piece is a plastic piece, external threads are molded on the outer walls of the two ends of the connecting piece, stepped holes are formed in the connecting piece, the major diameter of each stepped hole is the same as the outer diameter of the steel pipe, and the minor diameter of each stepped hole is the same as the inner diameter of the steel pipe; the outer surface of the nut is provided with uniform friction belts, the inner wall of the nut is provided with internal threads in a modeling mode, and the internal threads are inclined.
2. The steel pipe connecting structure with good sealing performance as claimed in claim 1, wherein the nut is over-fitted with the steel pipe, and the connecting member is interference-fitted with the steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389867.1U CN211574454U (en) | 2019-12-27 | 2019-12-27 | Steel pipe connection structure that leakproofness is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389867.1U CN211574454U (en) | 2019-12-27 | 2019-12-27 | Steel pipe connection structure that leakproofness is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211574454U true CN211574454U (en) | 2020-09-25 |
Family
ID=72551481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922389867.1U Expired - Fee Related CN211574454U (en) | 2019-12-27 | 2019-12-27 | Steel pipe connection structure that leakproofness is good |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211574454U (en) |
-
2019
- 2019-12-27 CN CN201922389867.1U patent/CN211574454U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 Termination date: 20211227 |