CN215763763U - Press-fastening screwing type welding pipeline joint structure - Google Patents
Press-fastening screwing type welding pipeline joint structure Download PDFInfo
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- CN215763763U CN215763763U CN202120640167.XU CN202120640167U CN215763763U CN 215763763 U CN215763763 U CN 215763763U CN 202120640167 U CN202120640167 U CN 202120640167U CN 215763763 U CN215763763 U CN 215763763U
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Abstract
The utility model discloses a press-fastening screwing type welded pipeline joint structure, which belongs to the technical field of pipeline joint structures and comprises a threaded joint body and an optical joint body, wherein a lip edge is arranged at the matching part of the threaded joint body and the optical joint body; the anti-loosening device also comprises a screwing nut in threaded fit with the threaded connector body and an anti-loosening pad in sleeve fit with the optical connector body; the outer sides of the screwed nut and the anti-loosening pad are regular polygons, two petal type pressing buckles are arranged on the outer sides of the screwed nut and the anti-loosening pad and are connected through bolts, the inner grooves of the pressing buckles are regular polygons matched with the outer portions of the screwed nut and the anti-loosening pad, the two sides of the grooves are matched with the two ends of the screwed nut and the two ends of the anti-loosening pad respectively, and the matching surface is an inclined surface. The utility model can ensure that the sealing surfaces of a pair of joint bodies welded on a pipeline are uniformly stressed, is convenient to disassemble and assemble, and can more effectively prevent looseness. Effectively solves the problems in the prior art.
Description
Technical Field
The utility model belongs to the technical field of pipeline joint structures, and particularly relates to a press-fastening screwing type welded pipeline joint structure which is particularly suitable for large-caliber high-pressure pipelines.
Background
In a hydraulic system or a high-pressure water system, pipelines with the caliber ranges of DN32 to DN100 need to be in a welded structure for safety, and joint type connection is needed in partial reserved positions or special cases. The existing joint connection structure is generally divided into two types: one is SAE flange type welded pipeline joint connection, but the flange has a disadvantage that two joint bodies are tightly pressed by 4 bolts, if the pretightening force of the 4 bolts is different, part of the bolts are stressed too much, and the bolts are broken, the flange is loosened and the pipeline leaks after long-term use; the other type is threaded joint connection, and the connection mode has the defect that the threads are not easy to align due to large diameter of the threads, the threads are easy to damage, and the threads are difficult to detach.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a press-fastening screwing type welding pipeline joint structure to solve the problems in the prior art.
The utility model is realized by the following technical scheme: the utility model provides a press and detain formula of screwing on welding line joint design which characterized in that: the optical connector comprises a threaded connector body and an optical connector body, wherein a lip edge is arranged at the matching position of the threaded connector body and the optical connector body; the anti-loosening device also comprises a screwing nut in threaded fit with the threaded connector body and an anti-loosening pad in sleeve fit with the optical connector body; the outer sides of the screwed nut and the anti-loosening pad are regular polygons, two petal type pressing buckles are arranged on the outer sides of the screwed nut and the anti-loosening pad and are connected through bolts, the inner grooves of the pressing buckles are regular polygons matched with the outer portions of the screwed nut and the anti-loosening pad, the two sides of the grooves are matched with the two ends of the screwed nut and the two ends of the anti-loosening pad respectively, and the matching surface is an inclined surface.
Further: the regular polygon is a regular hexagon.
Further: the included angle between the inclined plane and the end face is 5 degrees.
Further: and a locking washer is arranged between the locking pad and the optical connector body.
Further: and a sealing ring is arranged at the end part of the threaded joint body.
The utility model has the beneficial effects that: the utility model can ensure that the sealing surfaces of a pair of joint bodies welded on a pipeline are uniformly stressed, is convenient to disassemble and assemble, and can more effectively prevent looseness.
Drawings
FIG. 1 is a schematic cross-sectional view of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the structural buckle of the present invention;
fig. 3 is a schematic structural view of a structural threaded joint body of the present invention.
The sequence numbers in the figures illustrate: 1 is a pressing buckle, 2 is a screwing nut, 3 is a threaded joint body, 4 is a sealing ring, 5 is an optical joint body, 6 is a check washer, and 7 is a check pad.
Detailed Description
As shown in fig. 1-3, the present invention relates to a press-fastening screwing type welded pipe joint structure, which comprises a screw joint body 3 and an optical joint body 5 respectively fixed on the welded pipe, wherein the matching position of the screw joint body and the optical joint body is provided with a lip edge along the radial direction outwards, so that a T shape is formed integrally; the locking device also comprises a screwing nut 2 in threaded fit with the threaded joint body and a locking pad 7 in sleeve fit with the optical joint body; the outer sides of the screwed nut and the anti-loosening pad are regular polygons, two-piece pressing buckles 1 are arranged on the outer sides of the screwed nut and the anti-loosening pad, bolt holes are respectively formed in two sides of each of the two-piece pressing buckles, the pressing buckles are connected with bolts matched with the bolt holes, the inner grooves of the pressing buckles are regular polygons matched with the outer portions of the screwed nut and the anti-loosening pad, two sides (the upper side and the lower side in the figure 1) of each groove are respectively matched with the upper end of the screwed nut and the lower end of the anti-loosening pad, and the matching surface is an inclined plane (the whole surface is a conical surface).
Preferably: the regular polygon is a regular hexagon.
Preferably: the included angle between the inclined plane and the lower end face of the threaded joint body, namely the horizontal plane in figure 1, is 5 degrees.
Preferably: and a locking washer 6 is arranged between the locking pad and the optical connector body, is a double-stack self-locking washer, and can rotate in one direction and be locked in the reverse direction. In the scheme, the locking direction of the anti-loosening washer is consistent with the corresponding rotating direction when the screwing nut moves downwards.
Preferably: the end part of the threaded joint body is provided with a sealing groove, and a sealing ring 4 is arranged in the sealing groove.
The working process of the structure of the utility model of the following structure further explains the structure of the utility model as follows:
as shown in fig. 1, the clinch-welded pipe joint is composed of: the two pressing buckles are combined together through a bolt to form an annular outer sleeve, the two pressing buckles are not completely attached, and a gap of 4mm is reserved between the two pressing buckles to ensure reliable stress; the inner part of the radial section of the annular outer sleeve is a regular hexagon, the radial sections of the screwed nut and the anti-loosening pad are also regular hexagons, the two regular hexagons are identical in shape, and the screwed nut and the anti-loosening pad are attached together after installation and can synchronously rotate under the driving of the press buckle; the tops of the screwing nut and the anti-loosening pad are conical surfaces of 5 degrees, the surfaces of the buckles in contact with the screwing nut and the anti-loosening pad are also conical surfaces of 5 degrees, and the conical surfaces of 5 degrees can ensure that the pressing buckles can be easily separated when the connector is disassembled; the thread of the screwing nut is matched with the thread on the threaded joint body; the double-stack self-locking anti-loose washer is arranged between the anti-loose pad and the optical connector body.
When the structure of the utility model is used, a screwing nut is screwed into a threaded joint body and screwed to the lip edge position of the root, a double-stack self-locking washer and a check pad are sequentially sleeved outside the optical joint body, the angle of the check pad is adjusted to ensure that the external hexagonal shape of the check pad is consistent with the upper screwing nut, two pressing buckles are buckled outside the screwing nut and the check pad and are connected and fastened by bolts, then, the pressing buckles are rotated to ensure that the screwing nut moves upwards relative to the threaded joint body, namely, the threaded joint body is pressed downwards, the screwing nut compresses a sealing ring between the two joint bodies, the sealing effect is achieved, and the double-stack self-locking washer is also compressed, but the check washer is in a non-locking state at the moment and does not influence the rotation of the pressing buckles. After the pipeline connection is completed, in the operation process, when the pipe joint is vibrated, the self-locking function of the double-stack self-locking check washer can prevent the check washer from rotating, so that the screwed nut synchronous with the check washer can not move, the check washer is integrated with the screwed nut through two outer sleeves formed by pressing and buckling, and the screwed nut can not loosen due to vibration. If need dismantle, only need loosen the bolt of connecting two pressure buckles, can easily prize two buckles from the seam crossing with the instrument.
Claims (5)
1. The utility model provides a press and detain formula of screwing on welding line joint design which characterized in that: the optical connector comprises a threaded connector body and an optical connector body, wherein a lip edge is arranged at the matching position of the threaded connector body and the optical connector body; the anti-loosening device also comprises a screwing nut in threaded fit with the threaded connector body and an anti-loosening pad in sleeve fit with the optical connector body; the outer sides of the screwed nut and the anti-loosening pad are regular polygons, two petal type pressing buckles are arranged on the outer sides of the screwed nut and the anti-loosening pad and are connected through bolts, the inner grooves of the pressing buckles are regular polygons matched with the outer portions of the screwed nut and the anti-loosening pad, the two sides of the grooves are matched with the two ends of the screwed nut and the two ends of the anti-loosening pad respectively, and the matching surface is an inclined surface.
2. The press-and-fasten, screw-on welded pipe joint structure of claim 1, wherein: the regular polygon is a regular hexagon.
3. The press-and-fasten, screw-on welded pipe joint structure of claim 1, wherein: the included angle between the inclined plane and the end face is 5 degrees.
4. The press-and-fasten, screw-on welded pipe joint structure of claim 1, wherein: and a locking washer is arranged between the locking pad and the optical connector body.
5. The press-and-fasten, screw-on welded pipe joint structure of claim 1, wherein: and a sealing ring is arranged at the end part of the threaded joint body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120640167.XU CN215763763U (en) | 2021-03-30 | 2021-03-30 | Press-fastening screwing type welding pipeline joint structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120640167.XU CN215763763U (en) | 2021-03-30 | 2021-03-30 | Press-fastening screwing type welding pipeline joint structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763763U true CN215763763U (en) | 2022-02-08 |
Family
ID=80094351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120640167.XU Active CN215763763U (en) | 2021-03-30 | 2021-03-30 | Press-fastening screwing type welding pipeline joint structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215763763U (en) |
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2021
- 2021-03-30 CN CN202120640167.XU patent/CN215763763U/en active Active
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