CN201851811U - Pipe fitting connecting device - Google Patents
Pipe fitting connecting device Download PDFInfo
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- CN201851811U CN201851811U CN2010205609348U CN201020560934U CN201851811U CN 201851811 U CN201851811 U CN 201851811U CN 2010205609348 U CN2010205609348 U CN 2010205609348U CN 201020560934 U CN201020560934 U CN 201020560934U CN 201851811 U CN201851811 U CN 201851811U
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- swivel nut
- sleeve
- opening end
- seal ring
- truncated cone
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Abstract
The utility model relates to a pipe fitting connecting device, which belongs to connecting devices for rigid pipe fittings. The pipe fitting connecting device comprises a sleeve, a thread insert and a sealing ring; one end of the sleeve is closed; the other end of the sleeve is open; the inner end of the open end and a cavity of the sleeve form a cone frustum shape or a shape similar to a cone frustum; the bottom of the cone frustum shape is positioned at the open end of the sleeve; the shape similar to a cone frustum indicates that the axial cross section of the open end is a trapezoid projecting towards the outer wall of the sleeve adjacent to the open end and the bottom of the trapezoid is positioned at the open end of the sleeve; the thread insert is connected with the open end in a threaded manner; the sealing ring is positioned between the thread insert and the top of the cone frustum shape, or between the thread insert and the top of the shape similar to a cone frustum; and an outer ring of the sealing ring closely contacts with the inner wall of the open end. The pipe fitting connecting device has the advantages of convenience for carrying and mounting, fine air tightness after being mounted, and reusability.
Description
Technical field
The utility model is a kind of pipe connecting device, especially is fit to the connection of rigidity pipe fitting and the connection set of sealing requirements is arranged.
Background technique
The method that rigid pipe commonly used is tightly connected has:
1, uses the method for wire connection.Deficiency is to need mantle fiber, and pipe thickness is had requirement, on-the-spot tube material and the equipment fully of needing; Sealing needs sealing compound, twine fiber crops, add in-situ processing such as sealing gasket;
2, use the method for hot melt.As the welding of one of melt process, deficiency is that the welder that need have welder's grading certificate welds, and the welding apparatus that need adapt, and simultaneously there is certain requirement in place and environment;
3, use the method that the mouth of pipe is extruded bellmouth orifice.Deficiency is the pipe that is only applicable to enough elasticity and plasticity;
4, with the method that compresses the metal taper sheath.Deficiency is that rigid pipe cylindrical shape, size error and the surface roughness to the joint all has higher requirement, otherwise can not guarantee sealing;
5, connect the two ends method of pipe collar banding with flexible pipe.Deficiency is a joint rigidity deficiency, and it is coarse that outward appearance shows;
6, still useful in addition flange plate connection, union connection etc.Its deficiency is that the length to rigid pipe has higher requirement, otherwise is difficult for butt joint, and the scene need employ the welder, and the stationarity of the joint of loose joint simultaneously is also relatively poor;
Also occurred subsequently as the patent No. be: 200820116654.0(open day was: 2009.04.22 and publication number are: technological scheme CN201225468), its technological scheme is by the joint body, seal ring, positioning ring, retainer, stainless steel card and active ring are formed, seal ring is installed in the connecting port of joint body, positioning ring is installed on the seal ring, the stainless steel card is installed on the positioning ring, on the stainless steel card active ring is installed, positioning ring, the stainless steel card, active ring is installed in the retainer, retainer is installed in the connecting port of joint body, this technological scheme is to adopt positioning ring, stainless steel card and active ring and retainer are to connecting tube location and sealing, though this mode also can play the effect of sealing, but can not fixedly connected well pipe fitting, therefore, can not seal preferably and be connected the rigidity pipe fitting, and this technological scheme complex structure, install loaded down with trivial detailsly, have big difficulty in actual use.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of good airproof performance that both possessed, and is convenient for carrying, installs, a kind of pipe fitting joint that can also use repeatedly.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
A kind of pipe connecting device, comprise sleeve, swivel nut and seal ring, it is characterized in that: an end of described sleeve seals or is communicated with the pipeline device, the other end is an opening end, formed truncated cone or the approximate truncated cone of being shaped as of the inwall of described opening end and sleeve cavity, going to the bottom of described truncated cone is positioned at the opening end of sleeve, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve; Described swivel nut is threaded with opening end, seal ring is between the upper base of swivel nut and truncated cone, or between the upper base of swivel nut and approximate truncated cone, the outer ring of described seal ring closely contacts with the inwall of opening end, and swivel nut closely contacts with an end face of seal ring radial parallel.Described pipeline device is meant: instrument, instrument, valve, socket or connect mouth.
Described swivel nut is threaded with opening end and is meant: the opening end outer wall of sleeve is provided with outside thread, the inwall of one end of swivel nut is provided with internal thread, and between swivel nut and seal ring, be provided with axle sleeve, the swivel nut inwall is provided with projection radially, and is provided with axle sleeve between described projection and seal ring.
Described swivel nut is threaded with opening end and is meant: the opening end inwall of sleeve is provided with internal thread, and the outer wall of an end of swivel nut is provided with outside thread.
The other end of swivel nut is provided with the nut that is threaded, and is provided with taper washer between nut and the swivel nut.
Rounded along the cross section that seal ring is axial, oval or square.
A kind of pipe connecting device, comprise sleeve, swivel nut and seal ring, it is characterized in that: described swivel nut and seal ring respectively are two, the two ends of sleeve are opening end, one of them opening end, a swivel nut and the black box that seal ring forms are with the black box symmetry of another opening end, another swivel nut and the formation of another seal ring; The concrete structure of any black box of symmetric arrangement is as follows:
Formed truncated cone or the approximate truncated cone of being shaped as of the inwall of opening end and sleeve cavity, going to the bottom of described truncated cone is positioned at the opening end of sleeve, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve; Described swivel nut is threaded with opening end, and seal ring is between the upper base of swivel nut and truncated cone, or between the upper base of swivel nut and approximate truncated cone, the outer ring of described seal ring closely contacts with the inwall of opening end.
Described swivel nut is threaded with opening end and is meant: the opening end outer wall of sleeve is provided with outside thread, and the inwall of an end of swivel nut is provided with internal thread, and the swivel nut inwall is provided with projection radially, and is provided with axle sleeve between described projection and seal ring.
Described swivel nut is threaded with opening end and is meant: the opening end inwall of sleeve is provided with internal thread, and the outer wall of an end of swivel nut is provided with outside thread.
The other end of swivel nut is provided with the nut that is threaded, and is provided with taper washer between nut and the swivel nut.
On described sleeve, be communicated with at least one described black box that comprises that sleeve openings end, swivel nut and seal ring form, form threeway tubulose or four-way tubulose.
Described rigid pipe is meant metal tubes such as the carbon steel tube that reaches certain degree of rigidity, Stainless Steel Tube, aluminum pipe, copper pipe or reaches certain nonmetallic pipe with hardness.Therefore, connection pipe fitting can bear swivel nut and nut to its radial pressure that applies.
Working principle of the present utility model is:
The utility model is truncated cone or approximate truncated cone at the inwall of sleeve one end, at nut is the situation of internal thread: when the rotation swivel nut, projection in the swivel nut drives axle sleeve, it is mobile along " slip plane " of sleeve lining that axle sleeve promotes seal ring, at this moment, axle sleeve moves axially with respect to sleeve, and the axial force that institute's connection pipe fitting is born is changed into radial pressure, axle sleeve compressing this moment seal ring, the circular cone cavity internal strain that seal ring forms between sleeve and axle sleeve, and owing to seal ring closely contacts with the rigid pipe outer wall, therefore, form Seal cage between sleeve and the connection pipe fitting, play the seal action of sleeve lining and connection pipe fitting outer wall; At nut is the outside thread situation: during the rotation swivel nut, the end face of swivel nut directly acts on seal ring, at this moment, seal ring moves along " slip plane " of sleeve lining, and the axial force that institute's connection pipe fitting is born is changed into radial pressure, is oppressed in the circular cone cavity that seal ring forms between sleeve and swivel nut and is out of shape, and owing to seal ring closely contacts with the rigid pipe outer wall, therefore, form Seal cage between sleeve and the connection pipe fitting, play the seal action of sleeve lining and connection pipe fitting outer wall equally.
Secondly, be provided with outside thread at the outer wall of the swivel nut the other end, outer wall is provided with nut, is provided with the taper washer with the connection pipe fitting axial sliding fit between nut and the swivel nut.Driving taper washer when rotary nut moves to the swivel nut direction along connection pipe fitting, taper washer is subjected to the radial pressure between swivel nut and the nut, and shrinks to axial direction at the opening in swivel nut hole, therefore, with the connection pipe fitting banding, play the effect of fixedly connected pipe.
Therefore, compare with the prior art that with publication number is (CN201225468) patent document representative, the beneficial effect that the utility model reached is as follows:
1, when the sealing of sleeve one end, the utility model is " plug ";
2, when the equal opening in sleeve two ends, the utility model both had been " connecting head ", and when sleeve one end is big, an end hour is exactly large and small footpath conversion connecting head;
3, when sleeve be threeway or how logical, both be multi-pass connecting joint;
4, because the inwall of sleeve one end is truncated cone or approximate truncated cone, and form conical cavity with axle sleeve, seal ring is not fragile in cavity.(seal ring can adopt materials such as flexible and flexible rubber, silica gel, teflon or metallic material such as the copper of certain flexibility, aluminium are arranged);
5, owing to drive taper washer during rotary nut and move, and be subjected to the radial compression in swivel nut hole, so taper washer shrinks under the active force of nut and swivel nut, with the connection pipe fitting banding to the swivel nut direction.This locking mode is solid and reliable, cooperates with pipe fitting front end in stretching into sleeve, and rigid pipe does not have shaking, does not have rotation, do not have and move axially with respect to sleeve;
6, connection set simple shape, processing ease, part processing precision are not high, and seal ring, nut can adopt standard piece, and manufacture cost is lower;
7, connection set is widely used, and the conversion tube-in-tube structure can be made into direct-connected, the reducing, elbow, threeway, four-way, plug of unlike material, size etc.; Also can be used as conversion adapters such as valve, index gauge, socket;
8, connecting head is easy to loading and unloading, and is reusable.
Description of drawings
Fig. 1 is generalized section of the present utility model and the double embodiment's of being 4 a schematic representation
Fig. 2 is embodiment's 1 an of the present utility model schematic representation
Fig. 3 is embodiment's 2 an of the present utility model schematic representation
Fig. 4 is embodiment's 3 an of the present utility model schematic representation
Fig. 5 is embodiment's 5 an of the present utility model schematic representation
Fig. 6 is embodiment's 6 an of the present utility model schematic representation
Mark among the figure:
, sleeve, 2., swivel nut, 3., seal ring, 4., axle sleeve, 5. nut, 6, the tapered opening circle, 7, connecting tube.
Embodiment
Embodiment 1
A kind of pipe connecting device, comprise sleeve 1, swivel nut 2 and seal ring 3, the one end sealing of described sleeve 1, the other end is an opening end, formed truncated cone or the approximate truncated cone of being shaped as of the inwall of described opening end and sleeve 1 cavity, and going to the bottom of described truncated cone is positioned at the opening end of sleeve 1, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve 1 outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve 1; Described swivel nut 2 is threaded with opening end, and seal ring 3 is between the upper base of swivel nut 2 and truncated cone, or between the upper base of swivel nut 2 and approximate truncated cone, the outer ring of described seal ring 3 closely contacts with the inwall of opening end.Described swivel nut 2 is threaded with opening end and is meant: the opening end outer wall of sleeve 1 is provided with outside thread, and the inwall of an end of swivel nut 2 is provided with internal thread, and swivel nut 2 inwalls are provided with projection radially, and is provided with axle sleeve 4 between described projection and seal ring 3.Rounded along the cross section that seal ring 3 is axial.
Its working principle is: because apply mechanically end sealing, connecting tube passes swivel nut successively, axle sleeve and seal ring, and stretch in the sleeve, swivel nut one end is connected with bush whorl, when the rotation of rotation swivel nut, projection in the swivel nut drives axle sleeve, seal ring is pressed clap in the cavity that the truncated cone of sleeve lining or approximate truncated cone and connection pipe fitting and axle sleeve form, and seal ring is out of shape, because, internal diameter of the seal ring and connection pipe fitting are to closely cooperate, and the seal ring external diameter after the distortion just closely cooperates with sleeve lining, therefore, the opening end of sleeve does not have omission, voidlessness plays the effect of sealing.
Embodiment 2
A kind of pipe connecting device, comprise sleeve 1, swivel nut 2 and seal ring 3, the one end sealing of described sleeve 1, the other end is an opening end, formed truncated cone or the approximate truncated cone of being shaped as of the inwall of described opening end and sleeve 1 cavity, and going to the bottom of described truncated cone is positioned at the opening end of sleeve 1, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve 1 outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve 1; Described swivel nut 2 is threaded with opening end, and seal ring 3 is between the upper base of swivel nut 2 and truncated cone, or between the upper base of swivel nut 2 and approximate truncated cone, the outer ring of described seal ring 3 closely contacts with the inwall of opening end.Described swivel nut 2 is threaded with opening end and is meant: the opening end inwall of sleeve 1 is provided with internal thread, and the outer wall of an end of swivel nut 2 is provided with outside thread.Along the axial cross section ovalize of seal ring 3.
Its working principle is: because the sealing of sleeve one end, connecting tube passes swivel nut successively, axle sleeve and seal ring, and stretch in the sleeve, swivel nut one end is connected with bush whorl, when the rotation of rotation swivel nut, the end face of swivel nut press to be clapped seal ring in the cavity of the truncated cone of sleeve lining or approximate truncated cone and connection pipe fitting and axle sleeve formation, make the seal ring distortion, because internal diameter of the seal ring and connection pipe fitting are to closely cooperate, seal ring external diameter after the distortion just closely cooperates with sleeve lining, therefore, the opening end of sleeve does not have omission, voidlessness plays the effect of sealing.
Embodiment 3
A kind of pipe connecting device, comprise sleeve 1, swivel nut 2 and seal ring 3, the one end sealing of described sleeve 1, the other end is an opening end, formed truncated cone or the approximate truncated cone of being shaped as of the inwall of described opening end and sleeve 1 cavity, and going to the bottom of described truncated cone is positioned at the opening end of sleeve 1, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve 1 outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve 1; Described swivel nut 2 is threaded with opening end, and seal ring 3 is between the upper base of swivel nut 2 and truncated cone, or between the upper base of swivel nut 2 and approximate truncated cone, the outer ring of described seal ring 3 closely contacts with the inwall of opening end.Described swivel nut 2 is threaded with opening end and is meant: the opening end outer wall of sleeve 1 is provided with outside thread, and the inwall of an end of swivel nut 2 is provided with internal thread, and is provided with axle sleeve 4 between swivel nut 2 and seal ring 3.The other end of swivel nut 2 is provided with the nut 5 that is threaded, and is provided with taper washer 6 between nut 5 and the swivel nut 2.Square along the cross section that seal ring 3 is axial.
Its working principle is: because apply mechanically end sealing, connecting tube passes swivel nut successively, axle sleeve and seal ring, and stretch in the sleeve, swivel nut one end is connected with bush whorl, when the rotation of rotation swivel nut, projection in the swivel nut drives axle sleeve, seal ring is pressed clap in the cavity that the truncated cone of sleeve lining or approximate truncated cone and connection pipe fitting and axle sleeve form, and seal ring is out of shape, because, internal diameter of the seal ring and connection pipe fitting are to closely cooperate, and the seal ring external diameter after the distortion just closely cooperates with sleeve lining, therefore, the opening end of sleeve does not have omission, voidlessness plays the effect of sealing.Outer wall at the swivel nut the other end is provided with outside thread, and outer wall is provided with nut, is provided with the taper washer with the connection pipe fitting axial sliding fit between nut and the swivel nut.Driving taper washer when rotary nut moves to the swivel nut direction along connection pipe fitting, taper washer is subjected to the radial pressure between swivel nut and the nut, and shrinks to axial direction at the opening in swivel nut hole, therefore, with the connection pipe fitting banding, play the effect of fixedly connected pipe.And cooperate with pipe fitting front end in stretching into sleeve, rigid pipe does not have shaking, does not have rotation, does not have and move axially with respect to sleeve.
Embodiment 4
A kind of pipe connecting device, comprise sleeve 1, swivel nut 2 and seal ring 3, described swivel nut 2 and seal ring 3 respectively are two, the two ends of sleeve 1 are opening end, one of them opening end, a swivel nut 2 and the black box that seal ring 3 forms are with the black box symmetry of another opening end, another swivel nut 2 and 3 formation of another seal ring; The concrete structure of any black box of symmetric arrangement is as follows: formed truncated cone or the approximate truncated cone of being shaped as of the inwall of opening end and sleeve 1 cavity, going to the bottom of described truncated cone is positioned at the opening end of sleeve 1, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve 1 outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve 1; Described swivel nut 2 is threaded with opening end, and seal ring 3 is between the upper base of swivel nut 2 and truncated cone, or between the upper base of swivel nut 2 and approximate truncated cone, the outer ring of described seal ring 3 closely contacts with the inwall of opening end.Described swivel nut 2 is threaded with opening end and is meant: the opening end outer wall of sleeve 1 is provided with outside thread, and the inwall of an end of swivel nut 2 is provided with internal thread, and is provided with axle sleeve 4 between swivel nut 2 and seal ring 3.The other end of swivel nut 2 is provided with the nut 5 that is threaded, and is provided with taper washer 6 between nut 5 and the swivel nut 2.
Its working principle is: with the closed end opening of embodiment's 3 described sleeves, and be symmetrical arranged in the other end, promptly become the pipe fitting connecting head.
Embodiment 5
A kind of pipe connecting device, on described sleeve 1, be communicated with at least two described sleeve 1 opening ends that comprise, the black box that swivel nut 2 and seal ring 3 form, form threeway tubulose or four-way tubulose, described swivel nut 2 is threaded with opening end and is meant: the opening end outer wall of sleeve 1 is provided with outside thread, the inwall of one end of swivel nut 2 is provided with internal thread, and between swivel nut 2 and seal ring 3, be provided with axle sleeve 4, or swivel nut 2 is threaded with opening end and is meant: the opening end inwall of sleeve 1 is provided with internal thread, the outer wall of one end of swivel nut 2 is provided with outside thread, the other end of swivel nut 2 is provided with the nut 5 that is threaded, and is provided with taper washer 6 between nut 5 and the swivel nut 2.
Its working principle is: described sleeve is deformed into threeway tubulose or four-way tubulose, and at opening end swivel nut, nut, axle sleeve and seal ring is set respectively, the working principle of each opening end is identical with embodiment 3.Therefore, can be used as threeway, four-way or many logical connecting tubes.
Embodiment 6
A kind of pipe connecting device comprises sleeve 1, swivel nut 2 and seal ring 3, and an end of described sleeve 1 is connected with the pipeline device, and described pipeline device is meant: instrument, instrument, valve, socket or connect mouth.The other end is an opening end, formed truncated cone or the approximate truncated cone of being shaped as of the inwall of described opening end and sleeve 1 cavity, going to the bottom of described truncated cone is positioned at the opening end of sleeve 1, described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve 1 outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve 1; Described swivel nut 2 is threaded with opening end, and seal ring 3 is between the upper base of swivel nut 2 and truncated cone, or between the upper base of swivel nut 2 and approximate truncated cone, the outer ring of described seal ring 3 closely contacts with the inwall of opening end.Described swivel nut 2 is threaded with opening end and is meant: the opening end outer wall of sleeve 1 is provided with outside thread, and the inwall of an end of swivel nut 2 is provided with internal thread, and is provided with axle sleeve 4 between swivel nut 2 and seal ring 3.The other end of swivel nut 2 is provided with the nut 5 that is threaded, and is provided with taper washer 6 between nut 5 and the swivel nut 2.Square along the cross section that seal ring 3 is axial.
Claims (10)
1. pipe connecting device, comprise sleeve (1), swivel nut (2) and seal ring (3), it is characterized in that: an end of described sleeve (1) seals or is communicated with the pipeline device, the other end is an opening end, formed truncated cone or the approximate truncated cone of being shaped as of the inwall of described opening end and sleeve (1) cavity, going to the bottom of described truncated cone is positioned at the opening end of sleeve (1), described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve (1) outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve (1); Described swivel nut (2) is threaded with opening end, seal ring (3) is positioned between the upper base of swivel nut (2) and truncated cone, or between the upper base of swivel nut (2) and approximate truncated cone, the outer ring of described seal ring (3) closely contacts with the inwall of opening end, and swivel nut (1) closely contacts with an end face of seal ring (3) radial parallel.
2. a kind of pipe connecting device according to claim 1, it is characterized in that: described swivel nut (2) is threaded with opening end and is meant: the opening end outer wall of sleeve (1) is provided with outside thread, the inwall of one end of swivel nut (2) is provided with internal thread, swivel nut (2) inwall is provided with projection radially, and is provided with axle sleeve (4) between described projection and seal ring (3).
3. a kind of pipe connecting device according to claim 1 is characterized in that: described swivel nut (2) is threaded with opening end and is meant: the opening end inwall of sleeve (1) is provided with internal thread, and the outer wall of an end of swivel nut (2) is provided with outside thread.
4. according to claim 1 or 2 or 3 described a kind of pipe connecting devices, it is characterized in that: the other end of swivel nut (2) is provided with the nut (5) that is threaded, and is provided with taper washer (6) between nut (5) and the swivel nut (2).
5. pipe connecting device according to claim 1 is characterized in that: rounded along the cross section that seal ring (3) is axial, oval or square.
6. pipe connecting device, comprise sleeve (1), swivel nut (2) and seal ring (3), it is characterized in that: described swivel nut (2) and seal ring (3) respectively are two, the two ends of sleeve (1) are opening end, the black box that one of them opening end, a swivel nut (2) and a seal ring (3) form is with the black box symmetry of another opening end, another swivel nut (2) and another seal ring (3) formation; The concrete structure of any black box of symmetric arrangement is as follows:
Formed truncated cone or the approximate truncated cone of being shaped as of the inwall of opening end and sleeve (1) cavity, going to the bottom of described truncated cone is positioned at the opening end of sleeve (1), described approximate truncated cone is meant: the shaft section of opening end be waist to contiguous sleeve (1) outer wall direction protrude trapezoidal, described trapezoidal going to the bottom is positioned at the opening end of sleeve (1); Described swivel nut (2) is threaded with opening end, seal ring (3) is positioned between the upper base of swivel nut (2) and truncated cone, or between the upper base of swivel nut (2) and approximate truncated cone, the outer ring of described seal ring (3) closely contacts with the inwall of opening end, and swivel nut (1) closely contacts with an end face of seal ring (3) radial parallel.
7. a kind of pipe connecting device according to claim 6, it is characterized in that: described swivel nut (2) is threaded with opening end and is meant: the opening end outer wall of sleeve (1) is provided with outside thread, the inwall of one end of swivel nut (2) is provided with internal thread, swivel nut (2) inwall is provided with projection radially, and is provided with axle sleeve (4) between described projection and seal ring (3).
8. a kind of pipe connecting device according to claim 6 is characterized in that: described swivel nut (2) is threaded with opening end and is meant: the opening end inwall of sleeve (1) is provided with internal thread, and the outer wall of an end of swivel nut (2) is provided with outside thread.
9. according to claim 6 or 7 or 8 described a kind of pipe connecting devices, it is characterized in that: the other end of swivel nut (2) is provided with the nut (5) that is threaded, and is provided with taper washer (6) between nut (5) and the swivel nut (2).
10. a kind of pipe connecting device according to claim 6, it is characterized in that: on described sleeve (1), be communicated with at least one described black box that comprises that sleeve (1) opening end, swivel nut (2) and seal ring (3) form, form threeway tubulose or four-way tubulose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609348U CN201851811U (en) | 2010-10-14 | 2010-10-14 | Pipe fitting connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205609348U CN201851811U (en) | 2010-10-14 | 2010-10-14 | Pipe fitting connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851811U true CN201851811U (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205609348U Expired - Lifetime CN201851811U (en) | 2010-10-14 | 2010-10-14 | Pipe fitting connecting device |
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| Country | Link |
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| CN (1) | CN201851811U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937506A (en) * | 2012-11-22 | 2013-02-20 | 浙江久立特材科技股份有限公司 | Inlet sealing device for steel pipe airtight tests |
| CN105467154A (en) * | 2015-12-29 | 2016-04-06 | 浙江大学 | Pin type Pitot tube with fixing device and flow velocity measurement method thereof |
| CN115013620A (en) * | 2022-06-01 | 2022-09-06 | 高拓微通传热技术(北京)有限公司 | Welding-free type hydrogen cooler pipe orifice connecting mechanism |
-
2010
- 2010-10-14 CN CN2010205609348U patent/CN201851811U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937506A (en) * | 2012-11-22 | 2013-02-20 | 浙江久立特材科技股份有限公司 | Inlet sealing device for steel pipe airtight tests |
| CN102937506B (en) * | 2012-11-22 | 2014-12-10 | 浙江久立特材科技股份有限公司 | Inlet sealing device for steel pipe airtight tests |
| CN105467154A (en) * | 2015-12-29 | 2016-04-06 | 浙江大学 | Pin type Pitot tube with fixing device and flow velocity measurement method thereof |
| CN115013620A (en) * | 2022-06-01 | 2022-09-06 | 高拓微通传热技术(北京)有限公司 | Welding-free type hydrogen cooler pipe orifice connecting mechanism |
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Granted publication date: 20110601 |