CN109140068A - Internal and external threads universal joint, pipeline, method and closestool - Google Patents

Internal and external threads universal joint, pipeline, method and closestool Download PDF

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Publication number
CN109140068A
CN109140068A CN201710455408.1A CN201710455408A CN109140068A CN 109140068 A CN109140068 A CN 109140068A CN 201710455408 A CN201710455408 A CN 201710455408A CN 109140068 A CN109140068 A CN 109140068A
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CN
China
Prior art keywords
screw thread
nut
male connection
internal screw
internal
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
Application number
CN201710455408.1A
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Chinese (zh)
Inventor
孙俊锋
王乾松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kohler China Investment Co Ltd
Original Assignee
Kohler China Investment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kohler China Investment Co Ltd filed Critical Kohler China Investment Co Ltd
Priority to CN201710455408.1A priority Critical patent/CN109140068A/en
Publication of CN109140068A publication Critical patent/CN109140068A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/021Devices for positioning or connecting of water supply lines
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122Pipe-line systems for waste water in building
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03DWATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
    • E03D11/00Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
    • E03D11/13Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/04Screw-threaded joints; Forms of screw-threads for such joints with additional sealings

Abstract

The present invention provides a kind of internal and external threads universal joint, pipeline, method and closestools, comprising: nut, nut inside a part is external screw thread coupled zone, some decouples area for external screw thread;Male connection, the male connection are sheathed within nut, and a part is internal screw thread coupled zone on the outside of the male connection, some decouples area for internal screw thread;The male connection can rotate in nut, and be axially moveable.The compatible cooperation internal and external screw thread of internal and external threads universal joint of the present invention, having broken pipe can only be with limitation a certain in internal screw thread or external screw thread;Sealing node is reduced, joint dimension is smaller, and connection effect is beautiful.

Description

Internal and external threads universal joint, pipeline, method and closestool
Technical field
The present invention relates to a kind of device applied to pipe connection and using pipeline, method and the closestool of the device, especially It is related to a kind of internal and external threads universal joint and pipeline, method and closestool using the device.
Background technique
In general water supply, draining, hydraulic conveying, gas conveying, it is often necessary to it is connected using different pipes, from And extend pipeline, but because it is internal screw thread that universal pipe, which is all both ends, can not be directly connected to, need to increase outside a both ends The connector of screw thread is transferred, and could then be connected.The occasion influenced particularly with pipeline with environment, it is often necessary to pipeline into Row change, the increase of increase switching bring raw material, sealing increased risk, joint dimension increasing can all become drawback.In bathroom row Industry etc. needs to reduce exposed pipeline and connector in product that is beautiful and facilitating cleaning and be necessary.
It is exposed therefore, it is necessary to design a kind of complete non junction, and the pipe of regular length is provided, so as to building Inlet and outlet water Mouth connection builds intake-outlet and duct length is enough in ideal conditions.But when building has stayed interface, The length of pipe itself can be shorter than being actually needed, and is attached at this time, it may be necessary to buy common pipe, will result in connector in this way It is exposed, increase sealing process, joint dimension is larger, influences beautiful problem.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of internal and external threads universal joint, the compatible inside and outside spiral shell of cooperation Line, having broken pipe can only be with limitation a certain in internal screw thread or external screw thread;Sealing node is reduced, joint dimension is smaller, even Connect effect beauty.
In order to solve the above technical problems, the present invention provides a kind of internal and external threads universal joints, comprising: nut, it is described A part is external screw thread coupled zone on the inside of nut, some decouples area for external screw thread;Male connection, the external screw thread connect Headgear is set within nut, and a part is internal screw thread coupled zone on the outside of the male connection, some is internal screw thread solution Coupling area;The male connection can rotate in nut, and be axially moveable.
The beneficial effect of internal and external threads universal joint of the present invention is: compatible cooperation internal and external screw thread is broken Pipe can only be with limitation a certain in internal screw thread or external screw thread;Sealing node is reduced, joint dimension is smaller, connection effect beauty It sees.
Preferably, circlip is arranged between the male connection and nut.
Preferably, when needing to connect with internal screw thread, nut is stretched out in the internal screw thread coupled zone in male connection;External screw thread Internal screw thread coupled zone on connector is coupled with internal screw thread;Internal screw thread decoupling area in the male connection corresponds on the inside of nut External screw thread coupled zone.
Preferably, when needing to connect with internal screw thread, the internal screw thread coupled zone in male connection is contracted to nut interior; External screw thread coupled zone on the inside of nut is coupled with internal screw thread;Internal screw thread coupled zone in the male connection corresponds in nut The external screw thread of side decouples area.
Preferably, flexible padded coaming between the nut and male connection.
Preferably, the internal screw thread decoupling area of male connection is provided with cricoid back-up ring mounting groove.
Preferably, the male connection end is provided with gasket seal.
The present invention also provides a kind of pipelines with internal and external threads universal joint, including pipeline body, and are located at pipeline The connector of end, which is characterized in that the connector is with internal and external threads universal joint, comprising: nut, the nut inside one Part is external screw thread coupled zone, some decouples area for external screw thread;Male connection, the male connection are sheathed on spiral shell Within mother, a part is internal screw thread coupled zone on the outside of the male connection, some decouples area for internal screw thread;It is described outer Nipple can rotate in nut, and be axially moveable.
The beneficial effect of pipeline of the present invention with internal and external threads universal joint is: compatible cooperation is inside and outside Screw thread, having broken pipe can only be with limitation a certain in internal screw thread or external screw thread;Sealing node is reduced, joint dimension is smaller, Connection effect is beautiful.
Preferably, when needing to connect with internal screw thread, nut is stretched out in the internal screw thread coupled zone in male connection;External screw thread Internal screw thread coupled zone on connector is coupled with internal screw thread;Internal screw thread decoupling area in the male connection corresponds on the inside of nut External screw thread coupled zone.
Preferably, when needing to connect with internal screw thread, the internal screw thread coupled zone in male connection is contracted to nut interior; External screw thread coupled zone on the inside of nut is coupled with internal screw thread;Internal screw thread coupled zone in the male connection corresponds in nut The external screw thread of side decouples area.
Preferably, circlip is arranged between the male connection and nut;The nut and male connection it Between flexible padded coaming;The internal screw thread decoupling area of male connection is provided with cricoid back-up ring mounting groove;The external screw thread connects Cephalic par is provided with gasket seal;The pipeline body is hose or hard tube.
The present invention also provides a kind of closestools, including closestool body, and the pipeline connecting with closestool body, the pipeline Including pipeline body, and positioned at the connector of pipe end;The connector is with internal and external threads universal joint, comprising: nut, institute Stating a part on the inside of nut is external screw thread coupled zone, some decouples area for external screw thread;Male connection, the external screw thread Fitting sleeve is set within nut, and a part is internal screw thread coupled zone on the outside of the male connection, some is internal screw thread Decouple area;The male connection can rotate in nut, and be axially moveable.
The beneficial effect of closestool of the present invention is: compatible cooperation internal and external screw thread, and having broken pipe can only be with interior A certain limitation in screw thread or external screw thread;Sealing node is reduced, joint dimension is smaller, and connection effect is beautiful.
Preferably, when needing to connect with internal screw thread, nut is stretched out in the internal screw thread coupled zone in male connection;External screw thread Internal screw thread coupled zone on connector is coupled with internal screw thread;Internal screw thread decoupling area in the male connection corresponds on the inside of nut External screw thread coupled zone.
Preferably, when needing to connect with internal screw thread, the internal screw thread coupled zone in male connection is contracted to nut interior; External screw thread coupled zone on the inside of nut is coupled with internal screw thread;Internal screw thread coupled zone in the male connection corresponds in nut The external screw thread of side decouples area.
Preferably, circlip is arranged between the male connection and nut;The nut and male connection it Between flexible padded coaming;The internal screw thread decoupling area of male connection is provided with cricoid back-up ring mounting groove;The external screw thread connects Cephalic par is provided with gasket seal;The pipeline body is hose or hard tube.
The present invention also provides a kind of methods using internal and external threads universal joint, comprising: when needs are connected with internal screw thread When, nut is stretched out in the internal screw thread coupled zone in male connection;Internal screw thread coupled zone in male connection is coupled with internal screw thread; Internal screw thread decoupling area in the male connection corresponds to the external screw thread coupled zone on the inside of nut;When needs are connected with internal screw thread When, the internal screw thread coupled zone in male connection is contracted to nut interior;External screw thread coupled zone and internal screw thread coupling on the inside of nut It closes;The external screw thread that internal screw thread coupled zone in the male connection corresponds on the inside of nut decouples area.
The beneficial effect of method of the present invention using internal and external threads universal joint is: compatible cooperation is inside and outside Screw thread, having broken pipe can only be with limitation a certain in internal screw thread or external screw thread;Sealing node is reduced, joint dimension is smaller, Connection effect is beautiful.
Preferably, the internal screw thread decoupling area of male connection is provided with cricoid back-up ring mounting groove;It is first when installing retaining ring It is first that retaining ring is radially compressed, it is packed into back-up ring mounting groove;After male connection is packed into nut, retaining ring restores under own resilient Original state is mounted on retaining ring in nut.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is cross-sectional view when connector described in the embodiment of the present invention one is connected with internal screw thread.
Fig. 2 is perspective view when connector described in the embodiment of the present invention one is connected with internal screw thread.
Fig. 3 is cross-sectional view when connector described in the embodiment of the present invention one is connected with external screw thread.
Fig. 4 is perspective view when connector described in the embodiment of the present invention one is connected with external screw thread.
Fig. 5 is the explosion cross-sectional view of connector described in the embodiment of the present invention one.
Fig. 6 is connector after-explosion perspective view described in the embodiment of the present invention one.
Fig. 7 is the cross-sectional view in connector manufacturing process described in the embodiment of the present invention one.
Fig. 8 is the cross-sectional view after the completion of the manufacture of connector described in the embodiment of the present invention one.
Detailed description of the invention: 1, retaining ring;2, nut;3, nut external screw thread decouples area;4, nut external screw thread coupled zone;5, retaining ring is pacified Tankage;6, male connection;7, male connection internal screw thread decouples area;8, male connection internal screw thread coupled zone;9, gasket Piece.
Specific embodiment
Embodiment one,
As shown in Figs. 1-2, internal and external threads universal joint of the present invention, comprising: nut, nut inside a part is outer spiral shell Line coupled zone, some decouples area for external screw thread;Male connection, the male connection are sheathed within nut, institute Stating a part on the outside of male connection is internal screw thread coupled zone, some decouples area for internal screw thread;The male connection It can threadingly rotate in nut, and be axially moveable under the action of screw thread.It is arranged between the male connection and nut Flexible retaining ring, the circlip are used to limit the moving position between male connection and nut.In of the present invention External screw thread universal joint when in use, can both be connected with other pipelines of internal screw thread, can also be with other externally threaded pipes Road is connected.When needing to connect with internal screw thread, nut is stretched out in the internal screw thread coupled zone in male connection;In male connection Internal screw thread coupled zone coupled with internal screw thread;Internal screw thread decoupling area in the male connection corresponds to the outer spiral shell on the inside of nut Line coupled zone.When needing to connect with internal screw thread, the internal screw thread coupled zone in male connection is contracted to nut interior;In nut The external screw thread coupled zone of side is coupled with internal screw thread;Internal screw thread coupled zone in the male connection corresponds to outer on the inside of nut Screw thread decouples area.Noise is generated to solve the problems, such as that vibration occurs for nut, it is flexible slow between the nut and male connection Material is rushed, the elastomeric cushion material can be foamed cotton material material or plastics.The internal screw thread decoupling area of male connection is provided with ring The back-up ring mounting groove of shape.The male connection end is provided with gasket seal.Internal and external threads universal joint of the present invention Compatible cooperation internal and external screw thread, having broken pipe can only be with limitation a certain in internal screw thread or external screw thread;Reduce sealing section Point, joint dimension is smaller, and connection effect is beautiful.
The present invention also provides a kind of pipelines with internal and external threads universal joint, including pipeline body, and are located at pipeline The connector of end, which is characterized in that the connector is with internal and external threads universal joint, comprising: nut, the nut inside one Part is external screw thread coupled zone, some decouples area for external screw thread;Male connection, the male connection are sheathed on spiral shell Within mother, a part is internal screw thread coupled zone on the outside of the male connection, some decouples area for internal screw thread;It is described outer Nipple can rotate in nut, and be axially moveable.Internal screw thread when needing to connect with internal screw thread, in male connection Nut is stretched out in coupled zone;Internal screw thread coupled zone in male connection is coupled with internal screw thread;Interior spiral shell in the male connection Line decouples area and corresponds to the external screw thread coupled zone on the inside of nut.Interior spiral shell when needing to connect with internal screw thread, in male connection Line coupled zone is contracted to nut interior;External screw thread coupled zone on the inside of nut is coupled with internal screw thread;In the male connection The external screw thread that internal screw thread coupled zone corresponds on the inside of nut decouples area.Flexible gear is arranged between the male connection and nut Circle;Flexible padded coaming between the nut and male connection;The internal screw thread decoupling area of male connection is provided with ring-type Back-up ring mounting groove;The male connection end is provided with gasket seal;The pipeline body is hose or hard tube.The present invention The compatible cooperation internal and external screw thread of pipeline with internal and external threads universal joint, broken pipe can only with internal screw thread or A certain limitation in external screw thread;Sealing node is reduced, joint dimension is smaller, and connection effect is beautiful.
The present invention also provides a kind of closestools, including closestool body, and the pipeline connecting with closestool body, the pipeline Including pipeline body, and positioned at the connector of pipe end;The connector is with internal and external threads universal joint, comprising: nut, institute Stating a part on the inside of nut is external screw thread coupled zone, some decouples area for external screw thread;Male connection, the external screw thread Fitting sleeve is set within nut, and a part is internal screw thread coupled zone on the outside of the male connection, some is internal screw thread Decouple area;The male connection can rotate in nut, and be axially moveable.When needing to connect with internal screw thread, external screw thread Nut is stretched out in internal screw thread coupled zone on connector;Internal screw thread coupled zone in male connection is coupled with internal screw thread;The outer spiral shell Internal screw thread decoupling area on line connector corresponds to the external screw thread coupled zone on the inside of nut.When needing to connect with internal screw thread, outer spiral shell Internal screw thread coupled zone on line connector is contracted to nut interior;External screw thread coupled zone on the inside of nut is coupled with internal screw thread;It is described The external screw thread that internal screw thread coupled zone in male connection corresponds on the inside of nut decouples area.The male connection and nut it Between be arranged with circlip;Flexible padded coaming between the nut and male connection;The internal screw thread solution of male connection Coupling area is provided with cricoid back-up ring mounting groove;The male connection end is provided with gasket seal;The pipeline body is soft Pipe or hard tube.The compatible cooperation internal and external screw thread of closestool of the present invention, having broken pipe can only be in internal screw thread or external screw thread A certain limitation;Sealing node is reduced, joint dimension is smaller, and connection effect is beautiful.
The present invention also provides a kind of methods using internal and external threads universal joint, comprising: when needs are connected with internal screw thread When, nut is stretched out in the internal screw thread coupled zone in male connection;Internal screw thread coupled zone in male connection is coupled with internal screw thread; Internal screw thread decoupling area in the male connection corresponds to the external screw thread coupled zone on the inside of nut;When needs are connected with internal screw thread When, the internal screw thread coupled zone in male connection is contracted to nut interior;External screw thread coupled zone and internal screw thread coupling on the inside of nut It closes;The external screw thread that internal screw thread coupled zone in the male connection corresponds on the inside of nut decouples area.Male connection it is interior Screw thread decoupling area is provided with cricoid back-up ring mounting groove;It is first that retaining ring is radially compressed when installing retaining ring, it is packed into retaining ring peace Tankage;After male connection is packed into nut, retaining ring restores to the original state under own resilient, is mounted on retaining ring in nut.This hair The bright compatible cooperation internal and external screw thread of the method using internal and external threads universal joint, internal screw thread can only be matched by having broken pipe Or a certain limitation in external screw thread;Sealing node is reduced, joint dimension is smaller, and connection effect is beautiful.
The present invention provides a kind of connector, on the basis of guaranteeing that size is lesser, can not only connect with external screw thread, but also can be with Internal screw thread connection reduces pipeline switching bring sealing risk, reduces the size of connector portions, the use of adapter is omitted. When needing connect with external screw thread: exemplary graph 1 is original state, then rotating nut, make external screw thread coupled zone on nut with outside Internal screw thread coupled zone screw thread couple on nipple, internal screw thread coupled zone end of the nut in male connection is mobile, directly External screw thread coupled zone on to nut and the internal screw thread coupled zone cooperation in male connection, because of the external screw thread coupled zone on nut It is clearance fit with the internal screw thread coupled zone in male connection, then the rotation of nut not will lead to Forward, make at this time in retaining ring Under (such as Fig. 3), there is no axial advancements for nut.So when the external screw thread of external screw thread coupled zone and connected piece on nut is matched When conjunction rotation is tightened, pressing force only is generated to rubber sheet gasket, sealing is guaranteed.When needing to connect with internal screw thread, shown in Fig. 1 Structure can be connected directly.Assuming that Fig. 3 is original state, then rotating nut, makes external screw thread coupled zone and the external screw thread on nut Internal screw thread coupled zone coupling on connector, and it is mobile towards the internal screw thread coupled zone direction in male connection, when on nut When internal threaded regions on external screw thread coupled zone and male connection couple cooperation, because of clearance fit, the rotation of nut and outer spiral shell Line connector is no longer associated with, and is restored to Fig. 1 state at this time.When Fig. 1 state, allow the internal screw thread of connected piece relative to outer on nut When the rotation of screw thread couple area is tightened, pressing force only is generated to rubber sheet gasket, sealing is guaranteed.When connector and external screw thread cooperate When, nut occurs vibration and generates noise, flexible buffer structure (such as foam material or modeling between nut and male connection Material) inhibit noise to generate.In order to facilitate the installation of retaining ring, the internal screw thread decoupling area in male connection has a groove, makes After circlip is radially compressed, diameter is less than the minimum diameter of nut, and retaining ring slides into nut.After compression is released, retaining ring It becomes large-sized, avoids retaining ring and deviate from from nut.The compatible cooperation internal and external screw thread of this structure, having broken pipe can only be with interior A certain limitation in screw thread or external screw thread.
Present invention may apply to various terminals, such as water supply, draining, hydraulic conveying, gas conveying etc., and pipeline to be needed to connect The occasion connect;It can be adapted for various pipelines, such as hose, hard tube etc.;It can be adapted for various equipment, such as closestool, bath The various products for needing pipeline to connect such as cylinder.
The present invention is not limited to embodiments discussed above.The description of specific embodiment is intended to above in order to retouch State and illustrate technical solution of the present invention.The obvious transformation or substitution enlightened based on the present invention should also be as being considered Fall into protection scope of the present invention.Above specific embodiment is used to disclose best implementation method of the invention, so that this The those of ordinary skill in field can reach of the invention using numerous embodiments of the invention and a variety of alternatives Purpose.

Claims (17)

1. a kind of internal and external threads universal joint characterized by comprising
Nut, nut inside a part is external screw thread coupled zone, some decouples area for external screw thread;
Male connection, the male connection are sheathed within nut, and a part is internal screw thread on the outside of the male connection Coupled zone, some decouples area for internal screw thread;
The male connection can rotate in nut, and be axially moveable.
2. internal and external threads universal joint according to claim 1, which is characterized in that between the male connection and nut It is arranged with circlip.
3. internal and external threads universal joint according to claim 2, which is characterized in that when needing to connect with internal screw thread, outside Nut is stretched out in internal screw thread coupled zone on nipple;
Internal screw thread coupled zone in male connection is coupled with internal screw thread;
Internal screw thread decoupling area in the male connection corresponds to the external screw thread coupled zone on the inside of nut.
4. internal and external threads universal joint according to claim 2, which is characterized in that when needing to connect with internal screw thread, outside Internal screw thread coupled zone on nipple is contracted to nut interior;
External screw thread coupled zone on the inside of nut is coupled with internal screw thread;
The external screw thread that internal screw thread coupled zone in the male connection corresponds on the inside of nut decouples area.
5. internal and external threads universal joint described in any one of -4 according to claim 1, which is characterized in that the nut and outer Flexible padded coaming between nipple.
6. internal and external threads universal joint according to claim 5, which is characterized in that the internal screw thread of male connection decouples area It is provided with cricoid back-up ring mounting groove.
7. internal and external threads universal joint according to claim 6, which is characterized in that the male connection end is provided with Gasket seal.
8. a kind of pipeline with internal and external threads universal joint, including pipeline body, and positioned at the connector of pipe end, feature It is, the connector is with internal and external threads universal joint, comprising:
Nut, nut inside a part is external screw thread coupled zone, some decouples area for external screw thread;
Male connection, the male connection are sheathed within nut, and a part is internal screw thread on the outside of the male connection Coupled zone, some decouples area for internal screw thread;
The male connection can rotate in nut, and be axially moveable.
9. the pipeline according to claim 8 with internal and external threads universal joint, which is characterized in that when needs and internal screw thread When connection, nut is stretched out in the internal screw thread coupled zone in male connection;
Internal screw thread coupled zone in male connection is coupled with internal screw thread;
Internal screw thread decoupling area in the male connection corresponds to the external screw thread coupled zone on the inside of nut.
10. the pipeline according to claim 8 with internal and external threads universal joint, which is characterized in that when needs and interior spiral shell When line connects, the internal screw thread coupled zone in male connection is contracted to nut interior;
External screw thread coupled zone on the inside of nut is coupled with internal screw thread;
The external screw thread that internal screw thread coupled zone in the male connection corresponds on the inside of nut decouples area.
11. with the pipeline of internal and external threads universal joint according to any one of claim 8-10, which is characterized in that Circlip is arranged between the male connection and nut;
Flexible padded coaming between the nut and male connection;
The internal screw thread decoupling area of male connection is provided with cricoid back-up ring mounting groove;
The male connection end is provided with gasket seal;
The pipeline body is hose or hard tube.
12. a kind of closestool, including closestool body, and the pipeline connecting with closestool body, the pipeline include pipeline body, and Positioned at the connector of pipe end;
It is characterized in that, the connector is with internal and external threads universal joint, comprising:
Nut, nut inside a part is external screw thread coupled zone, some decouples area for external screw thread;
Male connection, the male connection are sheathed within nut, and a part is internal screw thread on the outside of the male connection Coupled zone, some decouples area for internal screw thread;
The male connection can rotate in nut, and be axially moveable.
13. closestool according to claim 12, which is characterized in that when needing to connect with internal screw thread, in male connection Internal screw thread coupled zone stretch out nut;
Internal screw thread coupled zone in male connection is coupled with internal screw thread;
Internal screw thread decoupling area in the male connection corresponds to the external screw thread coupled zone on the inside of nut.
14. closestool according to claim 12, which is characterized in that when needing to connect with internal screw thread, in male connection Internal screw thread coupled zone be contracted to nut interior;
External screw thread coupled zone on the inside of nut is coupled with internal screw thread;
The external screw thread that internal screw thread coupled zone in the male connection corresponds on the inside of nut decouples area.
15. closestool described in any one of 2-15 according to claim 1, which is characterized in that
Circlip is arranged between the male connection and nut;
Flexible padded coaming between the nut and male connection;
The internal screw thread decoupling area of male connection is provided with cricoid back-up ring mounting groove;
The male connection end is provided with gasket seal;
The pipeline body is hose or hard tube.
16. a kind of method using internal and external threads universal joint characterized by comprising
When needing to connect with internal screw thread, nut is stretched out in the internal screw thread coupled zone in male connection;
Internal screw thread coupled zone in male connection is coupled with internal screw thread;
Internal screw thread decoupling area in the male connection corresponds to the external screw thread coupled zone on the inside of nut;
When needing to connect with internal screw thread, the internal screw thread coupled zone in male connection is contracted to nut interior;
External screw thread coupled zone on the inside of nut is coupled with internal screw thread;
The external screw thread that internal screw thread coupled zone in the male connection corresponds on the inside of nut decouples area.
17. the method according to claim 16 using internal and external threads universal joint, which is characterized in that male connection Internal screw thread decoupling area is provided with cricoid back-up ring mounting groove;
It is first that retaining ring is radially compressed when installing retaining ring, it is packed into back-up ring mounting groove;
After male connection is packed into nut, retaining ring restores to the original state under own resilient, is mounted on retaining ring in nut.
CN201710455408.1A 2017-06-16 2017-06-16 Internal and external threads universal joint, pipeline, method and closestool Pending CN109140068A (en)

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Application publication date: 20190104