CN114992414A - Hard tube cutting ferrule connecting device - Google Patents
Hard tube cutting ferrule connecting device Download PDFInfo
- Publication number
- CN114992414A CN114992414A CN202210663016.5A CN202210663016A CN114992414A CN 114992414 A CN114992414 A CN 114992414A CN 202210663016 A CN202210663016 A CN 202210663016A CN 114992414 A CN114992414 A CN 114992414A
- Authority
- CN
- China
- Prior art keywords
- hard tube
- opening
- snap ring
- cutting ferrule
- conical
- 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.)
- Pending
Links
- 230000006835 compression Effects 0.000 claims abstract description 27
- 238000007906 compression Methods 0.000 claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
- F16L37/092—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of elements wedged between the pipe and the frusto-conical surface of the body of the connector
Abstract
The invention discloses a hard tube cutting ferrule connecting device which comprises a cutting ferrule joint, a snap ring and a compression nut, wherein the cutting ferrule joint is provided with an outer hexagonal fixing part and a hollow mounting part, the compression nut is screwed through threads, a conical opening with gradually increased inner diameter is processed on the outer end surface of the mounting part in the cutting ferrule joint, the inner wall of the compression nut is formed by sequentially connecting a threaded surface, a conical groove with gradually decreased inner diameter and a smooth surface, the oblique angles of the conical opening and the conical groove are both larger than the oblique angles of the inclined surfaces on the two sides of the snap ring, a hole communicated with the conical opening is formed in the cutting ferrule joint, two annular grooves are processed in the hole, and a sealing ring is installed in the annular groove. The hard tube clamping sleeve connecting device can realize quick connection of hard tubes, is reliable in connection fastening and good in sealing performance, facilitates maintenance and replacement of pipelines, and is beneficial to improving working efficiency and economic benefits.
Description
Technical Field
The invention belongs to the technical field of cooling pipelines, and particularly relates to a hard pipe clamping sleeve connecting device which is used for metal hard pipes such as copper pipes, titanium alloy pipes and stainless steel pipes.
Background
For a cooling pipeline system, in order to guarantee long service life of products, pipeline connection is tight, sealing is reliable, most of equipment in the cooling pipeline system are connected through hard pipes, the equipment in the traditional cooling pipeline system is connected through flanges, and the equipment is in butt joint with corresponding flanges.
For some equipment modules, a flange connection mode is adopted, and due to the fact that equipment installation and maintenance space is limited, the flange is large in size and inconvenient to repair and replace, equipment maintenance is not facilitated, and a flexible hard pipe quick sealing connection method is needed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the hard tube cutting sleeve connecting device which is simple and convenient to operate, high in tightness and reliable in hard tube fastening.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a hard tube cutting ferrule connecting device, includes that a cutting ferrule that has outer hexagonal fixed part connects, connects the cavity installation department that one end axial is toward extending outward and connects the gland nut on the installation department through the screw soon along the cutting ferrule, still including setting up the fusiformis snap ring in gland nut, is provided with the external diameter on the installation department and is less than the compression thread section of outer hexagonal fixed part, and the outer terminal surface processing of installation department that is located the cutting ferrule and connects has the toper opening that the internal diameter progressively enlarges, the gland nut inner wall connect the formation by screw thread face, the taper groove that the internal diameter progressively diminishes and smooth surface in proper order, the oblique angle of toper opening and taper groove all be greater than the oblique angle on snap ring both sides inclined plane, have intercommunication taper opening's trompil in the cutting ferrule connects, processing has two annular grooves in the trompil, installs the sealing washer in the annular groove.
The pressing thread section of the hard tube clamping sleeve connecting device is a conical thread.
The clamp ring of the hard tube clamp sleeve connecting device is in a thin-wall arched shape, and the ring surface is provided with a gap.
The opening of the hard tube clamping sleeve connecting device is a stepped hole, wherein the big end hole is positioned on one side of the mounting part, the annular groove is positioned in the big end hole, and the inner diameter of the small end hole is smaller than the inner diameter of the clamping ring.
The oblique angle between the conical opening and the conical groove of the hard tube clamping sleeve connecting device is 21 +/-2 degrees, and the oblique angle of the clamping ring is 18 +/-2 degrees.
According to the hard tube cutting sleeve connecting device, the conical groove and the smooth surface are in connection transition through the round angle.
The beneficial effects of the invention are: the invention can realize the quick connection of the hard pipes, has the advantages of firm and reliable connection, good sealing performance, convenient maintenance and replacement of the pipelines, and improved working efficiency and economic benefit.
Drawings
FIG. 1 is a schematic structural diagram of the present invention after installation of a hard tube;
FIG. 2 is a schematic structural view of a ferrule-based fitting of the present invention;
FIG. 3 is a schematic structural view of the compression nut of the present invention;
FIG. 4 is a front view of the snap ring of the present invention;
FIG. 5 is a top view of a snap ring of the present invention;
fig. 6 is a left side view of a snap ring of the present invention.
The figures are numbered: 1-cutting ferrule connects, 2-sealing washer, 3-snap ring, 4-gland nut, 5-hard tube, 11-toper opening, 41-toper recess.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, the invention discloses a hard pipe ferrule connecting device, which comprises a ferrule connector 1, a snap ring 3 and a compression nut 4, wherein the ferrule connector 1 consists of an outer hexagonal fixing part and a threaded hollow mounting part axially extending outwards, the threaded mounting part is arranged inside the ferrule connector 1, the spindle-shaped snap ring 3 is arranged in the compression nut 4, a compression thread section with the outer diameter smaller than that of the outer hexagonal fixing part is arranged on the mounting part, the compression nut 4 is screwed on the compression thread section through threads, a conical opening 11 with the inner diameter gradually increased is processed on the outer end surface of the mounting part in the ferrule connector 1, the inner wall of the compression nut 4 is formed by sequentially connecting a thread surface, a conical groove 41 with the inner diameter gradually decreased and a smooth surface, the oblique angles of the conical opening 11 and the conical groove 41 are both larger than the oblique angles of the oblique surfaces on two sides of the snap ring 3, wherein the oblique angles of the conical opening 11 and the conical groove 41 are 21 +/-2 degrees, as shown in fig. 2 and 3, the oblique angle of the snap ring 3 is 18 ± 2 °, as shown in fig. 4, the cutting ferrule connector 1 is provided with an opening communicated with the tapered opening 11, two annular grooves are processed in the opening, the sealing ring 2 is installed in the annular groove, and the opening is a stepped hole, which can play a role in positioning and limit the hard tube 5 to continue moving to one side, wherein the large end hole is located at one side of the installation part, the annular groove is located in the large end hole, the inner diameter of the small end hole is smaller than the inner diameter of the snap ring 3, and the inner diameters of the snap ring 3, the large end hole and the compression nut 4 are slightly larger than the outer diameter of the hard tube 5 to be installed.
When the hard tube cutting sleeve connecting device is used, the compression nut 4 and the snap ring 3 are firstly sleeved on the hard tube 5, a distance is reserved from the connecting end face of the hard tube 5, the hard tube 5 is extruded into the threaded hollow mounting part of the cutting sleeve joint 1 and enters the large end hole from the hole until the position of the stepped hole is limited by the small end hole, the two sealing rings 2 are extruded to generate deformation, a gap between the hard tube 5 and the cutting sleeve joint 1 is filled, the sealing effect is realized, then the snap ring 3 is rotated to move to be in contact with the tapered opening 11 of the cutting sleeve joint 1, the compression nut 4 is screwed again, the internal thread of the compression nut 4 is connected with the compression thread section of the cutting sleeve joint 1 until the root of the compression thread section is reached, in the process, the snap ring 3 deforms and expands, the gap between the hard tube 5 and the cutting sleeve joint 1 and the compression nut 4 is filled, the limiting effect is realized, the hard tube 5 is reliably fixed. After installation, one end of the wand 5 is visible protruding from the compression nut 4.
Referring to fig. 4, 5 and 6, the snap ring 3 of the present invention is in a thin-walled arch shape, and the ring surface of the snap ring 3 is provided with a gap, so that the snap ring 3 is pressed to deform and fix when the hard pipe 5 is installed.
The compression thread section of the ferrule adapter 1 is a taper thread, the taper thread can seal the connection part through the occlusion of the internal thread and the external thread, and thread sealant or other sealing materials are also needed to be adopted as filling agents on the taper thread during installation.
The transition between the conical groove 41 and the smooth surface of the compression nut 4 is fillet connection, so that the surface of the hard tube 5 can be prevented from being scratched by the compression nut 4 in the fastening process.
The hard tube clamping sleeve connecting device can realize quick connection of hard tubes, is reliable in connection fastening and good in sealing performance, facilitates maintenance and replacement of pipelines, improves working efficiency and further improves economic benefits.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention, as well as some embodiments, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (6)
1. The utility model provides a hard tube cutting ferrule connecting device which characterized in that: comprises a ferrule joint (1) with an outer hexagonal fixing part, a hollow mounting part axially extending outwards along one end of the ferrule joint (1), a compression nut (4) screwed on the mounting part through threads, and a spindle-shaped snap ring (3) arranged in the compression nut (4), wherein the mounting part is provided with a compression thread section with the outer diameter smaller than the outer hexagonal fixing part, the outer end surface of the mounting part positioned in the ferrule joint (1) is provided with a conical opening (11), the inner wall of the compression nut (4) is formed by sequentially connecting a threaded surface, a conical groove (41) and a smooth surface, the oblique angles of the conical opening (11) and the conical groove (41) are larger than the oblique angles of the oblique surfaces on the two sides of the clamping ring (3), an opening communicated with the conical opening (11) is formed in the clamping sleeve joint (1), an annular groove is formed in the opening, and a sealing ring (2) is installed in the annular groove.
2. A hard tube ferrule connection as claimed in claim 1, wherein the compression thread section is a tapered thread.
3. A hard tube ferrule connection device according to claim 1, wherein the snap ring (3) has a gap around its circumference.
4. A hard tube ferrule connection device according to claim 1, wherein the opening is a stepped hole, wherein the large end hole is located at one side of the mounting portion, the annular groove is located in the large end hole, and the inner diameter of the small end hole is smaller than the inner diameter of the snap ring (3).
5. A hard tube ferrule connection device according to claim 1, wherein the angle of inclination of the tapered opening (11) to the tapered recess (41) is 21 ± 2 °, and the angle of inclination of the snap ring (3) is 18 ± 2 °.
6. A hard tubing ferrule fitting arrangement as claimed in claim 1 wherein the tapered recess (41) transitions with the smooth surface by a rounded corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210663016.5A CN114992414A (en) | 2022-06-13 | 2022-06-13 | Hard tube cutting ferrule connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210663016.5A CN114992414A (en) | 2022-06-13 | 2022-06-13 | Hard tube cutting ferrule connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114992414A true CN114992414A (en) | 2022-09-02 |
Family
ID=83032807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210663016.5A Pending CN114992414A (en) | 2022-06-13 | 2022-06-13 | Hard tube cutting ferrule connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114992414A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1371609A (en) * | 1970-12-05 | 1974-10-23 | Markes Co Ltd | Pipe joint |
| CN2039785U (en) * | 1988-11-24 | 1989-06-21 | 清华大学 | Pipe joint for central heating |
| CN101122355A (en) * | 2006-08-10 | 2008-02-13 | 余启佳 | Metal pipe sealing movable connection method |
| CN103470881A (en) * | 2013-08-20 | 2013-12-25 | 宁夏宝塔石化科技实业发展有限公司 | Universal joint |
| CN203585616U (en) * | 2013-12-02 | 2014-05-07 | 湖北三江航天红峰控制有限公司 | Son and mother sealing ring for connecting smooth metal pipes |
| US20140319827A1 (en) * | 2013-04-25 | 2014-10-30 | Bueno Technology Co., Ltd. | Method and Structure for Preventing Slipping-off of a Tube in a Pipe Joint Made of Fluororesin |
| DE102013015455A1 (en) * | 2013-09-18 | 2015-03-19 | Mira Kunststofftechnik Gmbh | Tube Fitting |
| CN205842029U (en) * | 2016-07-19 | 2016-12-28 | 泸州拓创机械有限公司 | Taper sealing joint |
| CN206530789U (en) * | 2016-05-27 | 2017-09-29 | 镇江市星球流体控制设备有限公司 | Twolip single deck tape-recorder bell and spigot joint |
| CN207796320U (en) * | 2017-11-24 | 2018-08-31 | 新疆登煌管业有限公司 | A kind of collar joint of plastic coated composite steel pipe |
| CN210830856U (en) * | 2019-09-23 | 2020-06-23 | 宁波宏武管业有限公司 | Integrated snap ring hard sealing gas joint |
| CN111473173A (en) * | 2020-05-18 | 2020-07-31 | 上海开恒光岳机械制造有限公司 | Soft sealing mechanism of cutting ferrule formula joint |
| CN212203455U (en) * | 2020-05-14 | 2020-12-22 | 宁波金丽喜气动元件有限公司 | Ferrule type straight-through pipe joint |
| CN213236423U (en) * | 2020-08-31 | 2021-05-18 | 江苏科维仪表控制工程有限公司 | Press-fit pipe joint |
| CN216201328U (en) * | 2021-09-24 | 2022-04-05 | 慈溪市伟达塑胶制品有限公司 | Leak-proof cutting sleeve type copper pipe joint |
-
2022
- 2022-06-13 CN CN202210663016.5A patent/CN114992414A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1371609A (en) * | 1970-12-05 | 1974-10-23 | Markes Co Ltd | Pipe joint |
| CN2039785U (en) * | 1988-11-24 | 1989-06-21 | 清华大学 | Pipe joint for central heating |
| CN101122355A (en) * | 2006-08-10 | 2008-02-13 | 余启佳 | Metal pipe sealing movable connection method |
| US20140319827A1 (en) * | 2013-04-25 | 2014-10-30 | Bueno Technology Co., Ltd. | Method and Structure for Preventing Slipping-off of a Tube in a Pipe Joint Made of Fluororesin |
| CN103470881A (en) * | 2013-08-20 | 2013-12-25 | 宁夏宝塔石化科技实业发展有限公司 | Universal joint |
| DE102013015455A1 (en) * | 2013-09-18 | 2015-03-19 | Mira Kunststofftechnik Gmbh | Tube Fitting |
| CN203585616U (en) * | 2013-12-02 | 2014-05-07 | 湖北三江航天红峰控制有限公司 | Son and mother sealing ring for connecting smooth metal pipes |
| CN206530789U (en) * | 2016-05-27 | 2017-09-29 | 镇江市星球流体控制设备有限公司 | Twolip single deck tape-recorder bell and spigot joint |
| CN205842029U (en) * | 2016-07-19 | 2016-12-28 | 泸州拓创机械有限公司 | Taper sealing joint |
| CN207796320U (en) * | 2017-11-24 | 2018-08-31 | 新疆登煌管业有限公司 | A kind of collar joint of plastic coated composite steel pipe |
| CN210830856U (en) * | 2019-09-23 | 2020-06-23 | 宁波宏武管业有限公司 | Integrated snap ring hard sealing gas joint |
| CN212203455U (en) * | 2020-05-14 | 2020-12-22 | 宁波金丽喜气动元件有限公司 | Ferrule type straight-through pipe joint |
| CN111473173A (en) * | 2020-05-18 | 2020-07-31 | 上海开恒光岳机械制造有限公司 | Soft sealing mechanism of cutting ferrule formula joint |
| CN213236423U (en) * | 2020-08-31 | 2021-05-18 | 江苏科维仪表控制工程有限公司 | Press-fit pipe joint |
| CN216201328U (en) * | 2021-09-24 | 2022-04-05 | 慈溪市伟达塑胶制品有限公司 | Leak-proof cutting sleeve type copper pipe joint |
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