CN213655955U - Novel pipeline switching structure - Google Patents
Novel pipeline switching structure Download PDFInfo
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- CN213655955U CN213655955U CN202022021633.4U CN202022021633U CN213655955U CN 213655955 U CN213655955 U CN 213655955U CN 202022021633 U CN202022021633 U CN 202022021633U CN 213655955 U CN213655955 U CN 213655955U
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- pipeline
- locking end
- end cover
- sealing
- adapter tube
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Abstract
The utility model provides a novel pipeline switching structure, including switching pipe, locking end cover and two-way sealing member, the both ends excircle of switching pipe is equipped with the external screw thread, and the inner circumference oral area in switching pipe both ends is equipped with the seal groove, and the interior anchor ring of locking end cover is equipped with the internal thread, two locking end cover respectively with the both ends looks adaptation of switching pipe and through threaded connection; the two-way sealing piece is arranged between the end faces of the locking end cover and the adapter tube in a pressing mode, and the two-way sealing piece is sealed with the pipeline in a radial direction and the end face of the locking end cover. The utility model has simple structure, reliable sealing, convenient installation, fast pipeline maintenance and strong applicability, and does not need to cut the pipeline and process the thread on the maintenance site; and the connecting thread is not contacted with the liquid in the pipeline, so that the maintenance of the adapter joint thread is convenient.
Description
Technical Field
The utility model relates to a civilian and industrial pipeline connection technique especially relates to a novel pipeline switching structure.
Background
At present, most of civil and industrial pipelines are formed by connecting pipelines with certain lengths through pipe joints, the pipelines are usually in threaded connection with the pipe joints, and an anticorrosive coating on the outer surface of a thread is easy to damage during assembly, so that the thread is easy to corrode in water after being soaked for a long time, and phenomena such as perforation and leakage are generated. If the pipe joint to the seepage maintains, need professional maintenance workman to pull down the pipe joint to the rust position of the former screw thread of excision pipeline, then the special threading die processing new connecting thread of reuse pipeline, the pipe joint of standard this moment is shorter, needs two standard pipe joints to connect both ends pipeline, and increases the pipeline of a corresponding length between the pipe joint and connect. The disadvantages of such maintenance are: 1. require specialized maintenance workers; 2. a large operating space is required; 3. and a threaded connection link is added, and the sealing performance of the pipeline is reduced.
SUMMERY OF THE UTILITY MODEL
The weak point to prior art, the utility model provides a novel pipeline switching structure, its simple structure, simple to operate need not carry out the pipeline excision and carry out screw thread processing through the special die of pipeline at the maintenance scene, pipeline easy maintenance, swift.
In order to achieve the above purpose, the utility model provides a technical scheme is: a novel pipeline switching structure comprises a switching pipe, locking end covers and two-way sealing pieces, wherein external threads are arranged on the excircles of two end parts of the switching pipe, sealing grooves are arranged on the inner circumference opening parts of two ends of the switching pipe, internal threads are arranged on the inner ring surfaces of the locking end covers, and the two locking end covers are respectively matched with two ends of the switching pipe and are connected through threads; the two-way sealing piece is arranged between the end faces of the locking end cover and the adapter tube in a pressing mode, and the two-way sealing piece is sealed with the pipeline in a radial direction and the end face of the locking end cover.
The utility model discloses a novel pipeline switching structure convenient to dismouting, this switching structure adopt general sealed mode, realize the radial seal and the end face seal of switching device and pipeline through two way seal spare, and the frictional force restriction switching device that produces with the pipeline surface when utilizing two way seal spare to compress tightly simultaneously is not hard up on the pipeline. After the locking end cover is screwed in place, the end faces of the two sides of the bidirectional sealing element respectively form end face sealing with the adapter tube and the end face of the locking end cover, the inner surface of the bidirectional sealing element forms radial sealing with the outer surface of the pipeline, and the sealing structure is reliable. Like this when the pipeline maintenance, need not get rid of the pipeline corrosion position and repair the pipeline terminal surface at the maintenance scene, the special die of rethread pipeline carries out screw thread processing, direct mount the utility model discloses can, pipeline easy maintenance, swift.
Further, the axial depth of the seal groove is greater than the thickness of the bidirectional seal. The thickness of the bidirectional sealing element is slightly larger than the depth of the sealing groove, so that the bidirectional sealing element is extruded and deformed by the pressure of the end face of the locking end cover in the screwing process of the locking end cover, and radial sealing and end face sealing are formed after the locking end cover is screwed in place.
Further, as an embodiment, the cross-sectional shapes of the sealing groove and the bidirectional sealing member are right trapezoid, and the inclined surface and the large end of the right trapezoid face outward. An inclined surface component force can be generated between the trapezoidal bidirectional sealing element and the sealing groove, the bidirectional sealing effect is better, and the bidirectional sealing device is suitable for pipelines in larger pressure environments.
Further, as another embodiment of the low-pressure use environment, the bidirectional sealing element is an O-ring.
Further, as an optimized embodiment, the inner diameter of the bidirectional sealing element is smaller than the outer diameter of the pipeline, the two are in tight fit, and the inner diameter of the locking end cover is in small clearance fit with the outer diameter of the pipeline.
Furthermore, in order to facilitate the assembly and disassembly operation, the outer circumferential surface of the locking end cover is provided with knurls and wrench flat openings.
To sum up, the beneficial effects of the utility model are that: the pipeline cutting device has the advantages of simple structure, reliable sealing, convenient installation, no need of pipeline cutting in a maintenance site and thread machining through the special threading die for the pipeline, quick pipeline maintenance and strong applicability; and the connecting thread is not contacted with the liquid in the pipeline, so that the maintenance of the adapter joint thread is convenient.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the embodiment of the bi-directional seal of fig. 1.
Fig. 3 is a usage state diagram of the present invention.
Fig. 4 is a schematic view of the assembly process of the present invention.
Fig. 5 is a schematic structural view of the minimum limit position of the present invention installed in place.
Detailed Description
As shown in fig. 1 to 3, a novel pipeline switching structure includes a switching tube 1, a locking end cover 2 and a bidirectional sealing member 3, wherein outer threads 1 are arranged on the outer circles of two ends of the switching tube 1, sealing grooves 11 are arranged on the inner circumference openings of two ends of the switching tube 1, the sealing grooves 11 are cone-ring shaped, and the large end of the cone ring surface of the sealing groove 11 is located in the end surface direction of the switching tube 1; the locking end covers 2 are provided with bottom surfaces and circumferential surfaces, internal threads are arranged on inner ring surfaces of the circumferential surfaces, and the two locking end covers 2 are respectively matched with two ends of the adapter tube 1 and are connected through the threads. The inner holes at the two ends of the adapter tube 1 and the inner holes on the bottom surface of the locking end cover 2 are matched with the pipeline 4, and the inner diameter of the inner hole of the locking end cover 2 is in small clearance fit with the outer diameter of the pipeline. And a bidirectional sealing element 3 is arranged between the locking end cover 2 and the end face of the adapter tube 1 in a pressing mode, and the bidirectional sealing element 3 realizes radial sealing with the pipeline 4 and end face sealing of the locking end cover 2.
The cross section of the bidirectional sealing element 3 is matched with the sealing groove 11 and is in a right trapezoid shape, the inclined plane and the large end of the right trapezoid face the outer side, inclined plane component force can be generated between the trapezoidal bidirectional sealing element 3 and the sealing groove 11, the bidirectional sealing effect is better, and the bidirectional sealing device is suitable for pipelines with larger pressure environments. The axial depth of the seal groove 11 is greater than the thickness of the bidirectional seal 3. The thickness of the bidirectional sealing element 3 is slightly larger than the depth of the sealing groove 11, so that the bidirectional sealing element 3 is extruded and deformed by the pressure of the end face of the locking end cover 2 in the screwing process of the locking end cover 2, and radial sealing and end face sealing are formed after the locking end cover 2 is screwed in place. The internal diameter of two-way sealing member 3 is less than the external diameter of pipeline 4, both form the tight fit, the frictional force restriction that two- way sealing member 3 and 4 surface productions of pipeline the utility model discloses switching device produces not hard up on the pipeline.
In order to facilitate the assembly and disassembly operation, the outer circumferential surface of the locking end cover 2 is provided with knurls and wrench flat openings, and if the pressure in the water pipe is small, the water pipe can be directly screwed by hands; if the pressure in the water pipe is larger, the water pipe can be screwed by a conventional wrench, and the water pipe is easy and convenient to assemble and disassemble.
For the use condition of small pressure in the pipe, the bidirectional sealing element 3 can adopt a common O-shaped sealing ring, and the sealing groove 11 is also a matched annular groove.
As shown in fig. 4 and 5, the assembly process of the present invention is: the outer surface of the installation of the pipeline 4 is cleaned, the separated locking end covers 2 and the two-way sealing elements 3 are sequentially arranged in the pipelines 4 at two ends, the distance L1 between the two-way sealing element 3 at one end and the port of the pipeline 4 is greater than the length L2 of the adapter tube 1, then the adapter tube 1 is sequentially arranged towards one end of the pipeline 4, after the gap L3 exists between the tail end of the adapter tube 1 and the port of the other pipeline 4, the tail end of the adapter tube 1 is reversely arranged in the other pipeline 4, and the length L4 that the end of the adapter tube 1 extends into the port of the other pipeline 4 is not less than 5mm (shown in figure 5). And finally, moving the two-way sealing elements 3 at the two ends of the pipeline 4 into the corresponding sealing grooves 11 of the adapter tube 1, and screwing the locking end cover 2 in place. Otherwise, the disassembly process is as follows: when the pipe adaptor is detached, the locking end cover 2 is detached firstly, then the pipe adaptor 1 is moved towards one end of the pipeline 4, and after a gap is reserved between the tail end of the pipe adaptor 1 and the port of the other pipeline 4, the pipe adaptor 1 is detached from the pipeline 4.
The utility model discloses a two-way sealing member 3 realizes switching device and pipeline 4's radial seal and end face seal, and seal structure is reliable, need not carry out thread machining at the maintenance scene, direct mount, pipeline easy maintenance, swift.
The above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a novel pipeline switching structure which characterized in that: the locking device comprises an adapter tube, locking end covers and two-way sealing elements, wherein external threads are arranged on the excircles of two end parts of the adapter tube, sealing grooves are arranged on the inner circumference opening parts of two end parts of the adapter tube, internal threads are arranged on the inner ring surface of each locking end cover, and the two locking end covers are respectively matched with two ends of the adapter tube and are connected through threads; the two-way sealing piece is arranged between the end faces of the locking end cover and the adapter tube in a pressing mode, and the two-way sealing piece is sealed with the pipeline in a radial direction and the end face of the locking end cover.
2. The novel pipe transition structure of claim 1, wherein: the axial depth of the seal groove is greater than the thickness of the bidirectional seal.
3. The novel pipe transition structure of claim 1, wherein: the cross sections of the sealing groove and the bidirectional sealing element are in a right trapezoid shape, and the inclined plane and the large end of the right trapezoid face outwards.
4. The novel pipe transition structure of claim 1, wherein: the bidirectional sealing element is an O-shaped sealing ring.
5. The novel pipe transition structure of claim 1, wherein: the inner diameter of the bidirectional sealing element is smaller than the outer diameter of the pipeline, the two sealing elements form tight fit, and the inner diameter of the locking end cover and the outer diameter of the pipeline are in small clearance fit.
6. The novel pipe transition structure of claim 1, wherein: and a knurl and a wrench flat opening are arranged on the outer circumferential surface of the locking end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022021633.4U CN213655955U (en) | 2020-09-16 | 2020-09-16 | Novel pipeline switching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022021633.4U CN213655955U (en) | 2020-09-16 | 2020-09-16 | Novel pipeline switching structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213655955U true CN213655955U (en) | 2021-07-09 |
Family
ID=76696354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022021633.4U Active CN213655955U (en) | 2020-09-16 | 2020-09-16 | Novel pipeline switching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213655955U (en) |
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2020
- 2020-09-16 CN CN202022021633.4U patent/CN213655955U/en active Active
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