CN204187168U - A kind of pipe fitting connects seal arrangement - Google Patents
A kind of pipe fitting connects seal arrangement Download PDFInfo
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- CN204187168U CN204187168U CN201420604592.3U CN201420604592U CN204187168U CN 204187168 U CN204187168 U CN 204187168U CN 201420604592 U CN201420604592 U CN 201420604592U CN 204187168 U CN204187168 U CN 204187168U
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- pipe fitting
- connecting head
- taper sheath
- annular sleeve
- taper
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Abstract
The utility model relates to a kind of pipe fitting and connects seal arrangement, belongs to the connection set to rigid piping systems.Comprise, for the inwall of connecting head described in the outside thread connecting head of connection pipe fitting, taper sheath and internal threaded nut, there is the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in and the internal threaded nut of pipe fitting outer wall adaptation, taper sheath, annular sleeve, seal ring and outside thread connecting head successively, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, simultaneously taper sheath banding pipe fitting.The utility model have carry, easy for installation, after installing, tightness is good, and can the advantage of Reusability.
Description
Technical field
The utility model is that a kind of pipe fitting connects seal arrangement, is especially applicable to the connection to rigid piping systems and the connection set having tightness to require.
Background technique
The method that conventional rigid pipe is tightly connected has:
1, by the method that silk connects.Deficiency needs mantle fiber, has requirement to pipe thickness, and scene needs standby tube material and equipment; Sealing needs sealing compound, twines fiber crops, adds the in-situ processings such as sealing gasket.
2, by the method for hot melt.As the welding of one of melt process, deficiency is that the welder need with welder's grading certificate welds, and the welding apparatus that need adapt, there is certain requirement to place and environment simultaneously.
3, by the method mouth of pipe being extruded bellmouth orifice.Deficiency is the pipe being only applicable to enough elasticity and plasticity.
4, by the method compressing metal conic cover.Deficiency is that rigid pipe outer circular shape, size error and the surface roughness to joint has higher requirement, otherwise can not ensure sealing.
5, connect with flexible pipe, the two ends method of pipe collar banding.Deficiency is that joint rigidity is not enough, and outward appearance shows coarse.
6, still useful flange plate connection, union connection etc. in addition.Its deficiency has higher requirement to the length of rigid pipe, otherwise not easily dock, and welder need be employed in scene, and the stationarity of loose joint joint is also poor simultaneously.
Subsequently, occurred that the patent No. is 201020560934.8, denomination of invention is be a kind of utility model patent technological scheme of pipe connecting device.This art solutions is as follows:
A kind of pipe connecting device, comprise sleeve, swivel nut and seal ring, one end of described sleeve is closed or is communicated with tubing device, the other end is opening end, and the shape that the inwall of described opening end and sleeve cavity are formed is truncated cone or approximate truncated cone, and going to the bottom of described truncated cone is positioned at the opening end of sleeve, described approximate truncated cone refers to: the shaft section of opening end be waist protrude to contiguous sleeve outer wall direction 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 swivel nut and the upper base of truncated cone, or between the upper base of swivel nut and approximate truncated cone, the outer ring of described seal ring and the inwall close contact of opening end, swivel nut and the radial parallel end face close contact of seal ring.Described swivel nut is threaded with opening end and refers to: 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 axle sleeve is provided with between swivel nut and seal ring, swivel nut inwall is provided with radial projection, and is provided with axle sleeve between described projection and seal ring.Described swivel nut is threaded with opening end and refers to: the opening end inwall of sleeve is provided with internal thread, and the outer wall of one end of swivel nut is provided with outside thread.The other end of swivel nut is provided with the nut be threaded, and is provided with taper washer between nut and swivel nut
, although solve sealing when connecting rigid piping systems, fixing, there is following defect in this art solutions:
Utilize the rotation of first nut, axle sleeve is stretched into sleeve inner, and then crush seal circle, after sealed ring deformation, reach the sealing made between rigid piping systems and sleeve.Utilize the rotation of second nut, the axis of taper sheath along rigid piping systems is stretched into, reaches fixing effect.This mode have employed two nuts, adds cost undoubtedly, separately, because the nut of joint location increases, increases task difficulty.
Summary of the invention
Solve the problems of the technologies described above, the utility model provides one and both possessed good airproof performance, is convenient for carrying, installs, and operation, construction are succinct, and cost is lower, and can a kind of pipe fitting joint of Reusability.
For reaching above-mentioned technique effect, the technical solution of the utility model is:
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, it is characterized in that: the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.
Annular sleeve described in the utility model is made up of the ring-type axle sleeve of at least one and pipe fitting outer wall adaptation.
One end mask of annular sleeve described in the utility model has the end face matched with the taper type of outside thread connecting head inwall.
One end that annular sleeve described in the utility model contacts with taper sheath is provided with boss.
Taper sheath sidewall described in the utility model is provided with opening, and the inwall of described nut has the hole of mating with the plane of inclination of taper sheath.
The inwall plane of inclination of connecting head described in the utility model has accommodation o-ring groove.
The cross section of the axis of seal ring described in the utility model is rounded, oval or square.
Working principle of the present utility model is:
The utility model has to the taper type axially in convergent tendency inwall being provided with of connecting head, the inwall of connecting head is made to be truncated cone, and, the external diameter of described annular sleeve is less than connecting head internal diameter, when annular sleeve moves axially to connecting head inside, crush seal circle gradually, seal ring deforms, the effect fitting tightly the inwall of connecting head and the outer wall of pipe fitting thereupon, reach airtight, seal.Taper sheath, under the turning effort of nut, moves axially, and promote annular sleeve and move, when arriving restraining position, tightening nut, taper sheath is out of shape after receiving the lateral extrusion of nut, realizes the object to pipe fitting banding.
This working method, compared with the technological scheme being 201020560934.8, not only decreases a nut, and owing to being provided with boss, effectively prevent excessively stretching into of annular sleeve, and damage seal ring with the patent No..
Technical solutions of the utility model relative to the benefit of another kind of structure are:
The technological scheme of alternative structure is: connecting sleeve, seal ring and annular sleeve are combined into an entirety, annular sleeve can slight distance slide axially in connecting sleeve, when taper sheath extruding annular sleeve, annular sleeve crush seal circle, reaches the object of sealing, banding.But because this mode have employed, annular sleeve is entrenched in connecting sleeve, the move axially stroke of annular sleeve on pipe fitting is limited to, and then causes reducing the top clearance of seal ring, seal ring reduces in the distortion of radial direction thereupon, so, by quite high to the dimension precision requirement of pipe fitting.Further, connection when diameter is inconsistent can not be realized occurring between connecting head and pipe fitting.
The benefit that the technical solution adopted in the utility model possesses is:
1, connecting head can adopt various ways, when connecting head one end is closed, can become " plug ";
2, when connecting head is bull, and the equal opening of multiterminal, the utility model had been both " connecting head ", and then realized the connection set of pipeline device and pipeline; And when sleeve one end is large, one end hour is exactly large and small footpath conversion connecting head;
3, because the inwall of connecting head one end is truncated cone, and form conical bores with annular sleeve, seal ring is not fragile in cavity.(seal ring can adopt the material such as flexible and flexible rubber, silica gel, teflon or have the metallic material such as copper, aluminium of certain flexibility.）
4, because annular sleeve is provided with spacing, ensure that and because of the excessive compression of annular sleeve, seal ring can not be damaged;
5, the big opening end diameter of taper sheath and annular sleeve and connecting head diameter match, when ensure that taper sheath moves axially, evenly axial pressure is applied to annular sleeve, prevent unbalance stress and the annular sleeve that causes is stuck, seal ring local pressure etc. damages device situation occurs;
6, the inwall of nut has the hole of mating with taper sheath plane of inclination, and when nut rotates, move axially, therefore taper washer shrinks under nut active force, by connection pipe fitting banding.This locking mode is solid and reliable, and pipe fitting rotates, without moving axially without shake, nothing relative to connecting head;
7, this device simple shape, processing ease, part processing precision are not high, and seal ring, nut can adopt standard piece or non-standard component, and manufacture cost is lower;
8, connecting head is easy to loading and unloading, reusable;
The inwall plane of inclination of 9, connecting head has accommodation o-ring groove, serves the effect of protection seal ring further.
Accompanying drawing explanation
Fig. 1 is the generalized section of the utility model embodiment 1;
Fig. 2 is the generalized section of the utility model embodiment 4;
Fig. 3 is the utility model embodiment 8 generalized section;
Fig. 4 is the utility model embodiment 9 generalized section.
In figure: 1, connecting head, 2, seal ring, 3, annular sleeve, 4, taper sheath, 5, nut, 6, pipe fitting, 7, boss, 8, axle sleeve.
Embodiment
embodiment 1
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.
embodiment 2
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of a ring-type axle sleeve with pipe fitting outer wall adaptation.
embodiment 3
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of a ring-type axle sleeve with pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.
embodiment 4
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of a ring-type axle sleeve with pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.One end that described annular sleeve contacts with taper sheath is provided with boss.
embodiment 5
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of a ring-type axle sleeve with pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.One end that described annular sleeve contacts with taper sheath is provided with boss.Described taper sheath sidewall is provided with opening, and the inwall of described nut has the hole of mating with the plane of inclination of taper sheath.
embodiment 6
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of a ring-type axle sleeve with pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.One end that described annular sleeve contacts with taper sheath is provided with boss.Described taper sheath sidewall is provided with opening, and the inwall of described nut has the hole of mating with the plane of inclination of taper sheath.The inwall plane of inclination of described connecting head has accommodation o-ring groove.
embodiment 7
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of a ring-type axle sleeve with pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.One end that described annular sleeve contacts with taper sheath is provided with boss.Described taper sheath sidewall is provided with opening, and the inwall of described nut has the hole of mating with the plane of inclination of taper sheath.The inwall plane of inclination of described connecting head has accommodation o-ring groove.The cross section of the axis of described seal ring is rounded, oval or square.
embodiment 8
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of the ring-type axle sleeve of two or more and pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.
embodiment 9
A kind of pipe fitting connects seal arrangement, comprise the outside thread connecting head for connection pipe fitting, taper sheath and internal threaded nut, the inwall of described connecting head has the taper type expanded gradually to opening direction, also comprise the annular sleeve matched with the plane of inclination of taper type, described pipe fitting is inserted in the internal threaded nut with pipe fitting outer wall adaptation successively, taper sheath, annular sleeve, seal ring and outside thread connecting head, to make to promote taper sheath during rotating nut, taper sheath drives annular sleeve crush seal circle, the contact internal walls place of the pipe fitting outer wall and connecting head stretching into connecting head is sealed, taper sheath banding pipe fitting simultaneously.Described annular sleeve is made up of the ring-type axle sleeve of two or more and pipe fitting outer wall adaptation.One end mask of described annular sleeve has the end face matched with the taper type of outside thread connecting head inwall.One end that described annular sleeve contacts with taper sheath is provided with boss.Described taper sheath sidewall is provided with opening, and the inwall of described nut has the hole of mating with the plane of inclination of taper sheath.The inwall plane of inclination of described connecting head has accommodation o-ring groove.The cross section of the axis of described seal ring is rounded, oval or square.
Claims (7)
1. a pipe fitting connects seal arrangement, comprise the outside thread connecting head (1) for connection pipe fitting (6), taper sheath (4) and internal threaded nut (5), it is characterized in that: the inwall of described connecting head (1) has the taper type expanded gradually to opening direction, also comprise the annular sleeve (3) matched with the plane of inclination of taper type, described pipe fitting (6) is inserted in the internal threaded nut (5) with pipe fitting (6) outer wall adaptation successively, taper sheath (4), annular sleeve (3), seal ring (2) and outside thread connecting head (1), to make to promote taper sheath (4) during rotating nut, taper sheath (4) drives annular sleeve (3) crush seal circle (2), the contact internal walls place of pipe fitting (6) outer wall and connecting head (1) stretching into connecting head (1) is sealed, taper sheath (4) banding pipe fitting simultaneously.
2. a kind of pipe fitting according to claim 1 connects seal arrangement, it is characterized in that: described annular sleeve (3) is made up of the ring-type axle sleeve (8) of at least one and pipe fitting (6) outer wall adaptation.
3. a kind of pipe fitting according to claim 1 and 2 connects seal arrangement, it is characterized in that: one end mask of described annular sleeve (3) has the end face matched with the taper type of outside thread connecting head (1) inwall.
4. a kind of pipe fitting according to claim 1 connects seal arrangement, it is characterized in that: one end that described annular sleeve (3) contacts with taper sheath (4) is provided with boss (7).
5. a kind of pipe fitting according to claim 4 connects seal arrangement, and it is characterized in that: described taper sheath (4) sidewall is provided with opening, the inwall of described nut (5) has the hole of mating with the plane of inclination of taper sheath (4).
6. a kind of pipe fitting according to claim 5 connects seal arrangement, it is characterized in that: the inwall plane of inclination of described connecting head (1) has accommodation seal ring (2) groove.
7. a kind of pipe fitting according to claim 6 connects seal arrangement, it is characterized in that: the cross section of the axis of described seal ring (2) is rounded, oval or square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604592.3U CN204187168U (en) | 2014-10-20 | 2014-10-20 | A kind of pipe fitting connects seal arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420604592.3U CN204187168U (en) | 2014-10-20 | 2014-10-20 | A kind of pipe fitting connects seal arrangement |
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| CN204187168U true CN204187168U (en) | 2015-03-04 |
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| CN201420604592.3U Active CN204187168U (en) | 2014-10-20 | 2014-10-20 | A kind of pipe fitting connects seal arrangement |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508759A (en) * | 2016-01-29 | 2016-04-20 | 成都市天仁自动化科技有限公司 | Soft/hard-seal-combined cutting-sleeve pipeline joint |
| CN106402529A (en) * | 2016-09-29 | 2017-02-15 | 大连民族大学 | Quick connecting device for rigid straight pipe parts under vacuum environment |
| CN107419792A (en) * | 2017-04-27 | 2017-12-01 | 广西北海跃达玻璃钢制品有限公司 | A kind of drainage pipeline connector |
| CN107461558A (en) * | 2017-10-17 | 2017-12-12 | 上海新跃联汇电子科技有限公司 | A kind of Mechanical Sealed Type high pressure capillary gas path device |
| CN109442131A (en) * | 2018-12-26 | 2019-03-08 | 台州市金焰机械设备有限公司 | All-in-one machine is blocked up under a kind of aperture |
| CN109990148A (en) * | 2019-05-06 | 2019-07-09 | 广西玉柴机器股份有限公司 | A kind of catalytic muffler orifice sealing device |
| CN112443710A (en) * | 2019-09-03 | 2021-03-05 | 大连中和聚能自动控制系统有限公司 | Steel pipe joint capable of being independently disassembled and repeatedly used |
| CN113719689A (en) * | 2021-08-03 | 2021-11-30 | 国网福建省电力有限公司检修分公司 | Transformer pipeline sealing device |
| CN109442131B (en) * | 2018-12-26 | 2024-05-17 | 台州市金焰机械设备有限公司 | Block all-in-one under trompil |
-
2014
- 2014-10-20 CN CN201420604592.3U patent/CN204187168U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508759A (en) * | 2016-01-29 | 2016-04-20 | 成都市天仁自动化科技有限公司 | Soft/hard-seal-combined cutting-sleeve pipeline joint |
| CN106402529A (en) * | 2016-09-29 | 2017-02-15 | 大连民族大学 | Quick connecting device for rigid straight pipe parts under vacuum environment |
| CN107419792A (en) * | 2017-04-27 | 2017-12-01 | 广西北海跃达玻璃钢制品有限公司 | A kind of drainage pipeline connector |
| CN107461558A (en) * | 2017-10-17 | 2017-12-12 | 上海新跃联汇电子科技有限公司 | A kind of Mechanical Sealed Type high pressure capillary gas path device |
| CN109442131A (en) * | 2018-12-26 | 2019-03-08 | 台州市金焰机械设备有限公司 | All-in-one machine is blocked up under a kind of aperture |
| CN109442131B (en) * | 2018-12-26 | 2024-05-17 | 台州市金焰机械设备有限公司 | Block all-in-one under trompil |
| CN109990148A (en) * | 2019-05-06 | 2019-07-09 | 广西玉柴机器股份有限公司 | A kind of catalytic muffler orifice sealing device |
| CN109990148B (en) * | 2019-05-06 | 2024-05-03 | 广西玉柴机器股份有限公司 | Pipe orifice sealing device of catalytic muffler |
| CN112443710A (en) * | 2019-09-03 | 2021-03-05 | 大连中和聚能自动控制系统有限公司 | Steel pipe joint capable of being independently disassembled and repeatedly used |
| CN113719689A (en) * | 2021-08-03 | 2021-11-30 | 国网福建省电力有限公司检修分公司 | Transformer pipeline sealing device |
| CN113719689B (en) * | 2021-08-03 | 2023-08-04 | 国网福建省电力有限公司检修分公司 | Transformer pipeline sealing device |
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