CN202040457U - Pipe joint bushing and pipe joint using same - Google Patents
Pipe joint bushing and pipe joint using same Download PDFInfo
- Publication number
- CN202040457U CN202040457U CN2010206763352U CN201020676335U CN202040457U CN 202040457 U CN202040457 U CN 202040457U CN 2010206763352 U CN2010206763352 U CN 2010206763352U CN 201020676335 U CN201020676335 U CN 201020676335U CN 202040457 U CN202040457 U CN 202040457U
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- Prior art keywords
- pipeline
- wall
- runddichtringo
- lining
- joint
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Abstract
The utility model discloses a pipe joint bushing, which comprises a bushing body with an axial passage inside. The bushing body comprises a joint connecting section which is used for abutting with a pipe joint and a pipe connecting section which is used for abutting with a pipe. A first O-ring is arranged on the joint connecting section. A second O-ring is arranged on the pipe connecting section. The first O-ring is used for being hermetically connected with the inner wall of the pipe joint after the joint connecting section is abutted with the pipe joint. The second O-ring is used for being hermetically connected with the inner wall of the pipe when the pipe connecting section is abutted with the pipe. The utility model additionally discloses a pipe joint using the bushing. The pipe joint bushing has the advantages that the end surface of the pipe is prevented from being in contact with liquid after the liquid is fed into the pipe, harm is not caused to human health and sealing performance is high.
Description
Technical field
The utility model relates to a kind of assembling pipe joint, particularly a kind of pipe coupling that is used for the lining of pipe coupling and adopts this lining.
Background technique
Pipeline is industrial requisite basic facilities.Assembling pipe joint is its requisite connection means.
At present, well-known pipeline connects that to mainly contain be the dual mode such as (PP-R and PE manage) that is threaded and is connected with hot melt.Being threaded is to utilize joint and pipe and internal and external screw thread certainly to be spirally connected, and is sealed as stuffing box packing with polytetrafluoroethylraw raw material band; It is to utilize electric heating that the attachment portion of pipe and joint is heated to molten state that hot melt connects, and then compresses mutually, makes the contact surface homogeneous material melt mutually and makes it to connect and sealing.Above-mentioned two kinds of Placements connect trouble, and sealing effect is poor, and inconvenient maintenance.
Use and develop in order to adapt to the every profession and trade pipeline, pipeline connection technology or equipment have been proposed high request, had many new technology to come out now.
The Chinese patent publication number is that the utility model patent of CN2428674Y discloses a kind of pipe coupling.This joint is that metal is made, and is applicable to crosslinked polyethylene (PEX) pipe is connected.Be characterized in joint by the pipe joint body, the O RunddichtringO, awl seat (seal ring pressure ring), snap ring, movable tapered sleeve and fixed cover are formed.Described O RunddichtringO, the awl seat, snap ring, movable tapered sleeve and fixed cover axially are located in the pipe fitting successively.Carrying out pipeline when connecting, at first PEX tubing to be connected directly is inserted through described movable tapered sleeve, snap ring, awl, in each hole of O RunddichtringO, up to the pipe fitting body opening in restriction face.At this moment, because therefore equally distributed tooth can block the body that stretches into wherein for having elasticity in the snap ring hole.Because the elastic telescopic of O RunddichtringO is realized sealing.At last, by fastening fixed cover, thus the body after being fastenedly connected.When desire is taken out the PEX pipe that connects, need to make thrust pass to snap ring by promotion activity tapered sleeve, back down the tooth of snap ring, itself and body are broken away from, thereby can easily body be taken out.
Yet, because PEX manages its structure than book and softer, after pipeline inserts joint, deform easily, thereby influence both connectivity robustness and sealability.
Publication number is that the Chinese patent of CN20114195Y discloses a kind of pipe coupling, comprise joint body, be located at the collar of intrinsic seal arrangement and ring-type, collar is provided with the elasticity latch, collar is axially fixed in the joint, be provided with lining in the described joint, the gap is upwards left in the footpath of lining and pipeline body.The utility model adopts lining to have solved because pipeline configuration than book and softer, deforms easily after pipeline inserts joint, thereby influences both connectivity robustness and the problem of sealability.Yet because the surface of lining is comparatively smooth, pipeline is mutually nested with lining, and hydraulic pressure crosses when strong, and slide relative takes place easily for pipeline and lining.
Chinese patent CN2443220Y discloses a kind of adapter assembly, comprises the lining with flange, and the external diameter of lining is identical with the internal diameter of pipeline, and lining and pipeline enclosure are provided with O-ring seals; The flexible snap ring of the outer cover of lining, inside is provided with packing ring; Joint inside is provided with the inclined-plane that matches with the snap ring latch of this opening.The design that disclosed lining of this patent documentation and pipeline enclosure are provided with O-ring seals can solve well because the surface of lining is comparatively smooth, and pipeline is mutually nested with lining, and hydraulic pressure crosses when strong, and the problem of slide relative takes place easily for pipeline and lining.
Because adopting metallicses such as PEX and aluminium to be mixed and made into, present multi-layer piping is used to strengthen its intensity, these metallicses have harm to people's health usually, yet, when this hybrid type material is made pipeline, pipeline is bound to be cut off in use, outside the metallics of pipeline end face will be exposed at this moment; In case contact with potable water behind the pipeline insertion joint, then the health of possibility harmful to human.The pipe coupling of above several patents, when in pipeline or the lining insertion joint and after feeding liquid, the end face of pipeline all can contact with liquid, in case this liquid is potable water, will bring great harm directly for the health of human body so.
The model utility content
For this reason, the technical problems to be solved in the utility model is to propose a kind of can avoiding after pipeline feeds liquid, and the pipeline end face can not contact with liquid, thereby can not work the mischief to health, have high leak tightness, be used for the lining of pipe coupling and adopt the pipe coupling of this lining.
A kind of lining that is used for pipe coupling of the present utility model, comprise that inside has the bush body of axial passage, described bush body comprises and is used for the joint linkage section that docks with pipe coupling, with the pipeline linkage section that docks with pipeline, described joint linkage section is provided with an O RunddichtringO, is used for being tightly connected with described pipe coupling inwall formation; Described pipeline linkage section is provided with the 2nd O RunddichtringO, is used for being tightly connected with described inner-walls of duct formation.
Above-mentioned lining, the peripheral outer wall of described joint linkage section are provided with first position structure of a described O RunddichtringO, and the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO.
Above-mentioned lining, described first position structure is first groove of circumferential arrangement, a described O RunddichtringO is placed in described first groove, and described second position structure is second groove of circumferential arrangement, and described the 2nd O RunddichtringO is placed in described second groove.
Above-mentioned lining, described joint linkage section peripheral outer wall is provided with the flange of bush, and described first groove is located on the peripheral outer wall of the described flange of bush.
Above-mentioned lining, described first groove constitutes first wall near a side of described pipeline linkage section, the opposite side relative with described first wall constitutes second wall, described first wall and described second wall are respectively ringwise, the diameter of described first wall is greater than the diameter of described second wall, and described first wall is used for cooperating with pipe coupling and stops described pipeline to move along the pipeline direction of insertion.
A kind of pipe coupling comprises: joint body, and described joint body inside is provided with the pipeline lock assembly successively along the pipeline direction of insertion, and the pipeline that is used for inserting is locked in the described pipe coupling; The 3rd O RunddichtringO is used for being tightly connected with pipeline outer wall formation after pipeline inserts joint; O RunddichtringO crossette is located on the described pipeline body, is used to stop described the 3rd O RunddichtringO to move along duct orientation; With the seal for pipe joints section; Also comprise lining, described lining comprises that inside has the bush body of axial passage, described bush body is by the joint linkage section that is used for docking with pipe coupling, with the pipeline linkage section that docks with pipeline, described joint linkage section is provided with an O RunddichtringO, is used for being tightly connected with the described seal for pipe joints section inwall formation of described pipe coupling; Described pipeline linkage section is provided with the 2nd O RunddichtringO, is used for being tightly connected with the inwall formation of described pipeline.
Above-mentioned pipe coupling, the peripheral outer wall of described joint linkage section are provided with first position structure of a described O RunddichtringO, and the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO.
Above-mentioned pipe coupling, described first position structure is first groove of circumferential arrangement, a described O RunddichtringO is placed in described first groove, and described second position structure is second groove of circumferential arrangement, and described the 2nd O RunddichtringO is placed in described second groove.
Above-mentioned pipe coupling, described joint body is located on the described joint body inwall along also comprising the backstopping assembly that takes shape on the described seal for pipe joints section inwall on the pipeline direction of insertion, is used to stop described lining to move along direction of insertion; Described joint linkage section peripheral outer wall is provided with the flange of bush, and described first groove is located on the peripheral outer wall of the described flange of bush.
Above-mentioned pipe coupling, described first groove constitutes first wall near a side of described pipeline linkage section, the opposite side relative with described first wall constitutes second wall, and described first wall and described second wall are distinguished ringwise, and the diameter of described first wall is greater than the diameter of described second wall; Described backstopping assembly is for circumferentially taking shape in the pipeline convex shoulder on the described inner nosepiece wall, described convex shoulder ringwise, and its internal diameter is greater than the external diameter of described second wall, and less than the external diameter of described first wall, described O RunddichtringO back in described lining inserts described joint body forms sealing with the inwall of described convex shoulder and flexibly connects, described pipeline convex shoulder contacts with described first wall, thereby stops described lining to move along the pipeline direction of insertion.
Above-mentioned pipe coupling, described pipeline lock assembly comprises locking cap successively along the pipeline direction of insertion, is used to prevent that inner member from withdrawing from; The locking cap backstopping assembly is located on the pipeline insertion end of described joint body and is used to prevent that described locking cap from withdrawing from; Stripping ring, the card that is used to remove pipeline ends; Snap ring has the cyclic spring flange and several are located on the described flange, is used to tighten the latch of pipeline outer wall; Awl seat is slidingly connected with the inwall of described joint body, is used to stop described snap ring to move to the pipeline direction of insertion; Awl seat convex shoulder is located on the inwall of described joint body, is used to stop described awl seat to the motion of pipeline direction of insertion, but the axial motion between described awl seat convex shoulder and described locking cap of wherein said awl seat and described snap ring.
Above-mentioned pipe coupling, described joint body comprises the O RunddichtringO section that is positioned between described O RunddichtringO convex shoulder and described awl seat convex shoulder, and described awl seat is provided with the protruding rank that slidably are connected with described O RunddichtringO section sealing near an end of described the 3rd O RunddichtringO.
Above-mentioned pipe coupling, the axial distance between described O RunddichtringO convex shoulder and described awl seat is more than or equal to the 3rd O RunddichtringO axial thickness cause axial deformation when inserting pipeline after; Described latch is at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into, and the internal diameter of described the 3rd O RunddichtringO is less than the external diameter of described pipeline, and the internal diameter of described stripping ring is greater than the external diameter of the described pipeline that passes described stripping ring; Described awl seat is an annular, and has the conical surface that cooperates with described latch; The locking cap convex shoulder is located on the described joint body inwall, is positioned between described snap ring and described locking cap, is used to stop described locking cap to move to described pipeline direction of insertion; Form the stripping ring projection on the outer wall of described stripping ring, described stripping ring projection is used for cooperating with described locking cap preventing that described stripping ring breaks away from described joint between described snap ring and described locking cap; Described stripping ring forms cone angle near an end of described snap ring.
Advantage of the present utility model is:
1. described joint linkage section is provided with an O RunddichtringO, is used for being tightly connected with described pipe coupling inwall formation; Described pipeline linkage section is provided with the 2nd O RunddichtringO, is used for being tightly connected with described inner-walls of duct formation; The design of this lining can be connected with pipeline at lining, and after lining inserts pipe coupling, guarantee that liquid (potable water) can not infiltrate from the two ends of lining, contact with the end face of pipeline, when this pipeline uses as potable water transmission, can guarantee can therefore not cause harm well to human body; In addition, the one O RunddichtringO is located on the peripheral outer wall of described lining, not only can guarantee after described lining inserts joint, even slight axial motion takes place in lining, the one O RunddichtringO also can keep in touch with inner-walls of duct all the time, can strengthen the pressure of butt joint inwall side direction again, thereby increase the frictional force of lining and inner nosepiece wall, and then the firm degree of reinforced joint system.In addition, adopt above-mentioned lining can need not when carrying out the potable water transmission, to change the pipeline that does not have the human body harmful substances, so reduced user cost.
2. the peripheral outer wall of described joint linkage section is provided with first position structure of a described O RunddichtringO, and the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO; Both can guarantee when pipeline inserts described lining that described the 2nd O RunddichtringO can motion to axial not take place with described lining, thereby guarantees the sealing between pipeline and described lining; Can guarantee that again a described O RunddichtringO and described lining can not take place to move to axial after described lining inserts described pipe coupling, thereby avoided a described O RunddichtringO to come off and separate, and then guaranteed the sealing of lining and inner-walls of duct from described lining.
3. described first position structure is first groove of circumferential arrangement, and a described O RunddichtringO is placed in described first groove, and described second position structure is second groove of circumferential arrangement, and described the 2nd O RunddichtringO is placed in described second groove; Adopt groove as position structure, simple in structure, form easily, and can guarantee sealing well.
4. described joint linkage section peripheral outer wall is provided with the flange of bush, described first groove is located on the peripheral outer wall of the described flange of bush, the flange of bush of this design can play the prevention of pipeline along direction of insertion, after pipeline inserts described lining, the described flange of bush can be guaranteed the state after described pipeline inserts, and can be connected and sealed with inner-walls of duct well.
5. described first groove constitutes first wall near a side of described pipeline linkage section, the opposite side relative with described first wall constitutes second wall, described first wall and described second wall are respectively ringwise, the diameter of described first wall is greater than the diameter of described second wall, described first wall is used for cooperating with pipe coupling and stops described pipeline to move along the pipeline direction of insertion, the lining of above-mentioned design, its first wall second wall and an O RunddichtringO that is positioned at described first groove form a ledge structure, and this structure can be so that the cooperation of the pipeline backstopping assembly in lining and the joint more compact.
6. pipe coupling comprises: joint body, and described joint body inside is provided with the pipeline lock assembly successively along the pipeline direction of insertion, and the pipeline that is used for inserting is locked in the described pipe coupling; The 3rd O RunddichtringO is used for being tightly connected with pipeline outer wall formation after pipeline inserts joint; Described joint body also comprises the seal for pipe joints section; A described O RunddichtringO is used for forming movable sealing with the inwall of described seal for pipe joints section and is connected after described joint linkage section and described pipe coupling butt joint, described the 2nd O RunddichtringO is used for being connected with described inner-walls of duct formation movable sealing when described pipeline linkage section docks with described pipeline; Also comprise lining with above-mentioned design; Be connected with pipeline at lining, and after lining inserts pipe coupling, guarantee that liquid that can not infiltrates from the two ends of lining, and contact with the end face of pipeline, thereby avoided impelling the generation that health is constituted the liquid of harm because of the metallics of pipeline end face, when this pipeline uses as potable water transmission, may guarantee can therefore not cause harm well to human body, in addition, the one O RunddichtringO is located on the peripheral outer wall of described lining, can strengthen the pressure of butt joint inwall side direction again, thereby increase the frictional force of lining and inner nosepiece wall, and then the firm degree of reinforced joint system.
7. the peripheral outer wall of the linkage section of joint described in the pipe coupling is provided with first position structure of a described O RunddichtringO, and the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO.Joint with this design both can have been guaranteed when pipeline inserts described lining, and described the 2nd O RunddichtringO can motion to axial not take place with described lining, thereby guarantees the sealing between pipeline and described lining; Can guarantee that again a described O RunddichtringO and described lining can not take place to move to axial after described lining inserts described pipe coupling, thereby avoided a described O RunddichtringO to come off and separate, and then guaranteed that lining is provided with the sealing of an end of a described O RunddichtringO from described lining.
8. described joint body is located on the described joint body inwall along also comprising the backstopping assembly that takes shape on the described seal for pipe joints section inwall on the pipeline direction of insertion, is used to stop described lining to move along direction of insertion; Described joint linkage section peripheral outer wall is provided with the flange of bush, and described first groove is located on the peripheral outer wall of the described flange of bush; This design can cooperatively interact by described backstopping assembly and described pipeline lock assembly described lining and described pipeline are fixed between described backstopping assembly and the described pipeline lock assembly, has guaranteed the reliability and the soundness of installing.
9. described joint body comprises the O RunddichtringO section that is positioned between described O RunddichtringO convex shoulder and described awl seat convex shoulder, a described awl end near described the 3rd O RunddichtringO is provided with the protruding rank that slidably are connected with described O RunddichtringO section sealing, when described awl seat described protruding rank when contrary duct orientation is moved keep sealed sliding to be dynamically connected with described O RunddichtringO section all the time; This design can effectively improve the sealing between described awl seat and joint body.
10. during O RunddichtringO axial thickness after the axial distance between described O RunddichtringO convex shoulder and described awl seat equals to cause the axial deformation of O RunddichtringO when the insertion pipeline, described the 3rd O RunddichtringO can not cause excessive pressure to pipeline when can pipeline inserting, and has made things convenient for the insertion of pipeline.
11. the internal diameter of described stripping ring greater than the external diameter of the described pipeline that passes described stripping ring, can guarantee when pipeline inserts described stripping ring and described pipeline outer wall have enough spaces make when entering described stripping ring without any obstruction; Described latch can guarantee that at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into described latch carries out clamping to described pipeline outer wall; The internal diameter of described O RunddichtringO can guarantee that less than the external diameter of described pipeline the formation of described O RunddichtringO and described pipeline outer wall is tightly connected.
12. described awl seat be an annular, and an end of close described snap ring has the conical surface that matches with described latch, can allow described latch to form to a certain degree extension when described pipeline enters.Described stripping ring forms cone angle near an end of described snap ring, can be so that described stripping ring forms minimum contacting with described snap ring.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail below.
Fig. 1 is the lining schematic representation with flange of bush;
Fig. 2 is the lining schematic representation with first wall and second wall;
The schematic representation that Fig. 3 matches with lining among Fig. 1 for pipeline;
The schematic representation that Fig. 4 matches for the lining among pipeline and Fig. 2;
Fig. 5 has the work schematic representation of lining pipe coupling after the insertion of pipeline and lining for no protruding rank;
Fig. 6 has the work schematic representation that has after first wall and second wall liner cover and pipeline insert pipeline;
1-joint body, 2-the 3rd O type sealing density ring, 3-are bored seat, the 4-snap ring, 5-locking cap, 6-stripping ring, 7-O RunddichtringO convex shoulder, 8-awl seat convex shoulder, 9-locking cap backstopping assembly, the 10-latch, 11-backstopping assembly, 12-flange, the 13-pipeline, 14-O RunddichtringO section, the protruding rank of 15-, 16-stripping ring projection, 17-locking cap convex shoulder; The 101-bush body; The 102-passage; 103-first groove; 104-second groove; 105-the one O RunddichtringO; 106-the 2nd O RunddichtringO; The 107-flange of bush; The 108-first wall; 109-second wall; 110-joint linkage section; 111-pipeline linkage section; 120-seal for pipe joints section;
Embodiment
As a kind of lining that is used for pipe coupling of Fig. 1, comprise that inside has the bush body 101 of axial passage 102, described bush body 101 comprises and is used for the joint linkage section 110 that docks with pipe coupling, with the pipeline linkage section 111 that docks with pipeline, described joint linkage section 110 peripheral outer wall are provided with the flange of bush.
Described joint linkage section 110 is provided with an O RunddichtringO 105, and described pipeline linkage section 111 is provided with the 2nd O RunddichtringO 106.
Wherein, the peripheral outer wall of described joint linkage section 110 is provided with first position structure of a described O RunddichtringO 105, the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO 106, described first position structure is first groove 103 of circumferential arrangement, described second position structure is second groove 104 of circumferential arrangement, described first groove 103 is located on the peripheral outer wall of the described flange of bush, a described O RunddichtringO 105 is placed in described first groove 103, and described the 2nd O RunddichtringO 106 is placed in described second groove 104.
As shown in Figure 2, a described O RunddichtringO 105 is tightly connected with being used for after described pipe coupling is docked forming with described pipe coupling inwall at described joint linkage section 110, and described the 2nd O RunddichtringO 106 is used for being tightly connected with described inner-walls of duct formation when described pipeline linkage section docks with described pipeline.
The design of this lining can be connected with pipeline at lining, and after lining inserts pipe coupling, guarantee that liquid that can not infiltrates from the two ends of lining, and contact with the metallics of the end face of pipeline, thereby avoided health is constituted the generation of the liquid of harm, when this pipeline transmits use as potable water, can guarantee can therefore not cause harm well to human body, in addition, the one O RunddichtringO is located on the peripheral outer wall of described lining, not only can guarantee after described lining inserts joint, even slight axial motion takes place lining, an O RunddichtringO also can remain contact, can strengthen the pressure of butt joint inwall side direction again, thereby increase the frictional force of lining and inner nosepiece wall, and then the firm degree of reinforced joint system.
In addition, be provided with first position structure and second position structure and can guarantee when pipeline inserts described lining, motion to axial can not take place with described lining in described the 2nd O RunddichtringO, thereby guarantees the sealing between pipeline and described lining; Can guarantee that again a described O RunddichtringO and described lining can not take place to move to axial after described lining inserts described pipe coupling, thereby avoided a described O RunddichtringO to come off and separate, and then guaranteed that lining is provided with the sealing of an end of a described O RunddichtringO from described lining.
As a kind of lining that is used for pipe coupling of Fig. 3, comprise that inside has the bush body 101 of axial passage 102, described bush body 101 comprises and is used for the joint linkage section 110 that docks with pipe coupling, with the pipeline linkage section 111 that docks with pipeline, described joint linkage section 110 peripheral outer wall are provided with the flange of bush.
Described joint linkage section 110 is provided with an O RunddichtringO 105, and described pipeline linkage section 111 is provided with the 2nd O RunddichtringO 106.
The peripheral outer wall of wherein said joint linkage section 110 is provided with first position structure of a described O RunddichtringO 105, the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO 106, described first position structure is first groove 103 of circumferential arrangement, described second position structure is second groove 104 of circumferential arrangement, described first groove 103 is located on the peripheral outer wall of the described flange of bush, a described O RunddichtringO 105 is placed in described first groove 103, and described the 2nd O RunddichtringO 106 is placed in described second groove 104.
Described first groove constitutes first wall 108 near a side of described pipeline linkage section, the opposite side relative with described first wall 108 constitutes second wall 109, described first wall 108 and described second wall 109 are respectively ringwise, the diameter of described first wall 108 is greater than the diameter of described second wall 109, and described first wall 108 is used for cooperating with pipe coupling and stops described pipeline to move along the pipeline direction of insertion; Backstopping assembly is for circumferentially taking shape in the pipeline convex shoulder on the described inner nosepiece wall, described convex shoulder ringwise, and its internal diameter is greater than the external diameter of described second wall 109, and less than the external diameter of described first wall 108, described O RunddichtringO back in described lining inserts described joint body forms sealing with described circumferential outer wall and flexibly connects, described pipeline convex shoulder contacts with described second wall 109, thereby stops described lining to move along the pipeline direction of insertion.
As shown in Figure 4, a described O RunddichtringO 105 is tightly connected with being used for after described pipe coupling is docked forming with described pipe coupling inwall at described joint linkage section 110, and described the 2nd O RunddichtringO 106 is used for being tightly connected with described inner-walls of duct formation when described pipeline linkage section docks with described pipeline.
Pipe coupling as shown in Figure 5 comprises:
Locking cap 5 is used to prevent that inner member from withdrawing from;
Locking cap backstopping assembly 9 is located on the pipeline insertion end of described joint body and is used to prevent that described locking cap 5 from withdrawing from;
Stripping ring 6, the card that is used to remove pipeline ends;
Awl seat convex shoulder 8 is located on the inwall of described joint body 1, is used to stop described awl seat 3 to the motion of pipeline direction of insertion, but the axial motion between described awl seat convex shoulder 8 and described locking cap of wherein said awl seat 3 and described snap ring 4;
The 3rd O RunddichtringO 2 is used for being tightly connected with pipeline outer wall formation after pipeline 13 inserts joint;
O RunddichtringO convex shoulder 7 is located on joint body 1 inwall, is used to stop described the 3rd O RunddichtringO 2 to move to the pipeline direction of insertion;
With seal for pipe joints section 120;
Described pipe coupling comprises that also inside has the bush body 101 of axial passage 102, described bush body 101 comprises and is used for the joint linkage section 110 that docks with pipe coupling, with the pipeline linkage section 111 that docks with pipeline, described joint linkage section 110 peripheral outer wall are provided with the flange of bush.
Described joint linkage section 110 is provided with an O RunddichtringO 105, and described pipeline linkage section 111 is provided with the 2nd O RunddichtringO 106.Wherein, the peripheral outer wall of described joint linkage section 110 is provided with first position structure of a described O RunddichtringO 105, the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO 106, described first position structure is first groove 103 of circumferential arrangement, described second position structure is second groove 104 of circumferential arrangement, described first groove 103 is located on the peripheral outer wall of the described flange of bush, a described O RunddichtringO 105 is placed in described first groove 103, and described the 2nd O RunddichtringO 106 is placed in described second groove 104.A described O RunddichtringO 105 is tightly connected with being used for after described pipe coupling is docked forming with described pipe coupling inwall at described joint linkage section 110, and described the 2nd O RunddichtringO 106 is used for being tightly connected with described inner-walls of duct formation when described pipeline linkage section docks with described pipeline.
Backstopping assembly 11 is located on described joint body 1 inwall, is used to stop described lining and pipeline 13 to move along direction of insertion.Herein, backstopping assembly 11 is the pipeline convex shoulder.
The length of described lining is more than or equal to the distance of described backstopping assembly 11 to the close hanging ring of described the 3rd O type.
The axial distance that described O RunddichtringO convex shoulder 7 and described awl seat are 3 is greater than the 3rd O RunddichtringO 2 axial thicknesss cause the axial deformation of O RunddichtringO when inserting pipeline after, be that described the 3rd O RunddichtringO still is in separated position with described awl seat 3 this moment, described O RunddichtringO is in by free compressive state.
Described latch 10 is at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into, and the internal diameter of described the 3rd O RunddichtringO is less than the external diameter of described pipeline 13, and the internal diameter of described stripping ring 6 is greater than the external diameter of described pipeline 13.
Described awl seat 3 is an annular, and has the conical surface that cooperates with described latch near an end of described snap ring 4.
Described pipe coupling also comprises locking cap convex shoulder 17, is located on the described inner nosepiece wall, is positioned at 5 of described snap ring 4 and described locking caps, is used to stop described locking cap 5 to described pipeline direction of insertion (A to) motion; Form stripping ring projection 16 on the outer wall of stripping ring 6, described stripping ring projection 16 is between described snap ring 4 and described locking cap.
Described stripping ring 6 forms cone angle near an end of described snap ring 4.
Wherein, a described O RunddichtringO 105 described joint linkage section be used for described seal for pipe joints section 120 inwalls with described pipe coupling after described pipe coupling is docked and form and be tightly connected.
After pipeline 13 inserts described joint, at first pass described stripping ring 6, subsequently, described pipeline outer wall contacts with described latch 10, and passes institute's snap ring 4, and at this moment, described latch and described pipeline outer wall are clamp position; Along with going deep into of pipeline, described pipeline passes described awl seat 3, and passes described the 3rd O RunddichtringO 2; Afterwards, described pipeline 13 is connected with described pipeline linkage section 111, and described the 2nd O RunddichtringO is connected with the inner wall sealing of described pipeline 13, continues to promote described pipeline, one end of described pipeline 13 contacts with described flange, and described lining is pushed into described pipeline backstopping assembly 11 places.
When needs take out pipeline 13 from described joint, described stripping ring is promoted to the pipeline direction of insertion, one end of the close described snap ring 4 of described stripping ring backs down described latch 10, and described pipeline is carried out release, thereby pipeline is taken out from 13 described joints.
Above-mentioned pipeline can be with having the multi-layer piping that multiple material is made.
Described joint comprises the lining with above-mentioned design, can guarantee that liquid that can not infiltrates from the two ends of lining, and contact with the metallics of the end face of pipeline, thereby avoid health is constituted the generation of the liquid of harm, when this pipeline uses as potable water transmission, may guarantee can therefore not cause harm well to human body, in addition, the one O RunddichtringO is located on the peripheral outer wall of described lining, not only can guarantee after described lining inserts joint, even slight axial motion takes place in lining, the one O RunddichtringO also can remain contact, can strengthen the pressure of butt joint inwall side direction again, thereby increase the frictional force of lining and inner nosepiece wall, and then the firm degree of reinforced joint system.
The internal diameter of described stripping ring is greater than the external diameter of the described pipeline that passes described stripping ring, can guarantee when pipeline inserts described stripping ring and described pipeline outer wall have enough spaces make when entering described stripping ring without any obstruction; Described latch can guarantee that at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into described latch carries out clamping to described pipeline outer wall; The internal diameter of described the 3rd O RunddichtringO can guarantee that less than the external diameter of described pipeline the formation of described the 3rd O RunddichtringO and described pipeline outer wall is tightly connected.
Described awl seat be an annular, and an end of close described snap ring has the conical surface that matches with described latch, can allow described latch to form to a certain degree extension when described pipeline enters.
Described stripping ring forms cone angle near an end of described snap ring, can be so that described stripping ring forms minimum contacting with described the 3rd O RunddichtringO.
Pipe coupling as shown in Figure 6 comprises:
Locking cap 5 is used to prevent that inner member from withdrawing from;
Locking cap backstopping assembly 9 is located on the pipeline insertion end of described joint body and is used to prevent that described locking cap from withdrawing from;
Stripping ring 6, the card that is used to remove pipeline ends;
Awl seat convex shoulder 8 is located on the inwall of described joint body 1, is used to stop described awl seat 3 to the motion of pipeline direction of insertion, but the axial motion between described awl seat convex shoulder 8 and described locking cap of wherein said awl seat 3 and described snap ring 4;
The 3rd O RunddichtringO 2 is used for being tightly connected with pipeline outer wall formation after pipeline 13 inserts joint;
O RunddichtringO convex shoulder 7 is located on joint body 1 inwall, is used to stop described the 3rd O RunddichtringO 2 to move to the pipeline direction of insertion;
With seal for pipe joints section 120;
Described pipe coupling also comprises lining, comprise that inside has the bush body 101 of axial passage 102, described bush body 101 comprises and is used for the joint linkage section 110 that docks with pipe coupling, with the pipeline linkage section 111 that docks with pipeline, described joint linkage section 110 peripheral outer wall are provided with the flange of bush.
Described joint linkage section 110 is provided with an O RunddichtringO 105, and described pipeline linkage section 111 is provided with the 2nd O RunddichtringO 106.
The peripheral outer wall of wherein said joint linkage section 110 is provided with first position structure of a described O RunddichtringO 105, the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO 106, described first position structure is first groove 103 of circumferential arrangement, described second position structure is second groove 104 of circumferential arrangement, described first groove 103 is located on the peripheral outer wall of the described flange of bush, a described O RunddichtringO 105 is placed in described first groove 103, and described the 2nd O RunddichtringO 106 is placed in described second groove 104.
Described first groove constitutes first wall 108 near a side of described pipeline linkage section, the opposite side relative with described first wall 108 constitutes second wall 109, described first wall 108 and described second wall 109 are respectively ringwise, the diameter of described first wall 108 is greater than the diameter of described second wall 109, and described first wall 108 is used for cooperating with pipe coupling and stops described pipeline to move along the pipeline direction of insertion.
A described O RunddichtringO 105 is tightly connected with being used for after described pipe coupling is docked forming with described pipe coupling inwall at described joint linkage section 110, and described the 2nd O RunddichtringO 106 is used for being tightly connected with described inner-walls of duct formation when described pipeline linkage section docks with described pipeline.
Backstopping assembly 11 is located on described joint body 1 inwall, is used to stop lining and pipeline 13 to move along direction of insertion.Described backstopping assembly is for circumferentially taking shape in the pipeline convex shoulder on the described inner nosepiece wall, described convex shoulder ringwise, and its internal diameter is greater than the external diameter of described second wall 109, and less than the external diameter of described first wall 108.
The length of described lining can guarantee that greater than the distance of described backstopping assembly 11 to described the 3rd O RunddichtringO described the 3rd O RunddichtringO can not influenced the sealing of lining and inner-walls of duct by ducted hydraulic pressure indentation.
Described joint body 1 comprises the O RunddichtringO section 14 that is positioned at 8 of described O RunddichtringO convex shoulder 7 and described awl seat convex shoulders, described awl 3 end near described the 3rd O RunddichtringOs 2 are provided with the protruding rank 15 that slidably are connected with described O RunddichtringO section 14 sealings, when described awl seat described protruding rank when contrary duct orientation is moved keep sealed sliding to be dynamically connected with described O RunddichtringO section all the time.
The 3rd O RunddichtringO 2 axial thicknesss after the axial distance that described O RunddichtringO convex shoulder 7 and described awl seat are 3 equals to cause axial deformation when inserting pipeline, that is, described the 3rd O RunddichtringO just touches with described awl seated connection this moment, but not to its applied thrust.
Described latch 10 is at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into, and the internal diameter of described the 3rd O RunddichtringO is less than the external diameter of described pipeline 13, and the internal diameter of stripping ring 6 is greater than the external diameter of pipeline 13.
Described awl seat 3 is an annular, and has the conical surface of joining the Kazakhstan with described latch near an end of described snap ring 4.
Described pipe coupling also comprises locking cap convex shoulder 17, is located on the described inner nosepiece wall, is positioned at 5 of described snap ring 4 and described locking caps, is used to stop described locking cap 5 to move to described pipeline direction of insertion.
Form stripping ring projection 16 on the outer wall of stripping ring 6, described stripping ring projection 16 is between described snap ring 4 and described locking cap.
Described stripping ring 6 forms cone angle near an end of described snap ring 4.
As shown in Figure 6, when pipeline 13 enters described joint, at first pass described stripping ring 6, subsequently, described pipeline outer wall contacts with described latch 10, and passes institute's snap ring 4, and at this moment, described latch and described pipeline outer wall are clamp position; Along with going deep into of pipeline, described pipeline and lining pass described awl seat 3, and pass described the 3rd O RunddichtringO 2, arrive described flange of bush place; This moment, the inwall formation of a described O RunddichtringO and pipeline convex shoulder was tightly connected, and the side of described pipeline convex shoulder contacts with described second wall 109, thereby stops described lining to move along the pipeline direction of insertion.
When needs take out pipeline 13 from described joint, described stripping ring is promoted to the pipeline direction of insertion, one end of the close described snap ring 4 of described stripping ring backs down described latch 10, and described pipeline is carried out release, thereby pipeline is taken out from 13 described joints.
Above-mentioned pipeline can be with having the multi-layer piping that multiple material is made.
Described joint comprises the lining with above-mentioned design, can guarantee that liquid that can not infiltrates from the two ends of lining, and contact with the end face of pipeline, thereby avoided impelling the generation that health is constituted the liquid of harm because of the metallics of pipeline end face, when this pipeline uses as potable water transmission, may guarantee can therefore not cause harm well to human body, in addition, the one O RunddichtringO is located on the peripheral outer wall of described lining, not only can guarantee after described lining inserts joint, even slight axial motion takes place in lining, the one O RunddichtringO also can remain contact, can strengthen the pressure of butt joint inwall side direction again, thereby increase the frictional force of lining and inner nosepiece wall, and then the firm degree of reinforced joint system.
Described joint body comprises the O RunddichtringO section that is positioned between described O RunddichtringO convex shoulder and described awl seat convex shoulder, described awl seat is provided with the protruding rank that slidably are connected with described O RunddichtringO section sealing near an end of described the 3rd O RunddichtringO, this design can effectively strengthen the sealing of described the 3rd O RunddichtringO and inner nosepiece wall, has guaranteed that described joint still has good sealing property.
During O RunddichtringO axial thickness after the axial distance between described O RunddichtringO convex shoulder and described awl seat equals to cause the axial deformation of O RunddichtringO when the insertion pipeline, described the 3rd O RunddichtringO can not cause excessive pressure to pipeline when can pipeline inserting, and has made things convenient for the insertion of pipeline.
The internal diameter of described stripping ring is greater than the external diameter of the described pipeline that passes described stripping ring, can guarantee when pipeline inserts described stripping ring and described pipeline outer wall have enough spaces make when entering described stripping ring without any obstruction; Described latch can guarantee that at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into described latch carries out clamping to described pipeline outer wall; The internal diameter of described O RunddichtringO can guarantee that less than the external diameter of described pipeline the formation of described O RunddichtringO and described pipeline outer wall is tightly connected.
Described awl seat be an annular, and an end of close described snap ring has the conical surface that matches with described latch, can allow described latch to form to a certain degree extension when described pipeline enters.
Described stripping ring forms cone angle near an end of described snap ring, can be so that described stripping ring forms minimum contacting with described the 3rd O RunddichtringO.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms according to varying in size of equipment on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (13)
1. a lining that is used for pipe coupling comprises that inside has the bush body of axial passage, and described bush body comprises and is used for joint linkage section that docks with pipe coupling and the pipeline linkage section that docks with pipeline, it is characterized in that:
Described joint linkage section is provided with an O RunddichtringO, is used for being tightly connected with described pipe coupling inwall formation; Described pipeline linkage section is provided with the 2nd O RunddichtringO, is used for being tightly connected with described inner-walls of duct formation.
2. lining according to claim 1, it is characterized in that: the peripheral outer wall of described joint linkage section is provided with first position structure of a described O RunddichtringO, and the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO.
3. lining according to claim 2, it is characterized in that: described first position structure is first groove of circumferential arrangement, a described O RunddichtringO is placed in described first groove, described second position structure is second groove of circumferential arrangement, and described the 2nd O RunddichtringO is placed in described second groove.
4. lining according to claim 3 is characterized in that: described joint linkage section peripheral outer wall is provided with the flange of bush, and described first groove is located on the peripheral outer wall of the described flange of bush.
5. lining according to claim 4, it is characterized in that: described first groove constitutes first wall near a side of described pipeline linkage section, the opposite side relative with described first wall constitutes second wall, described first wall and described second wall are respectively ringwise, the diameter of described first wall is greater than the diameter of described second wall, and described first wall is used for cooperating with pipe coupling and stops described pipeline to move along the pipeline direction of insertion.
6. pipe coupling comprises:
Joint body, described joint body inside is provided with successively along the pipeline direction of insertion
The pipeline lock assembly, the pipeline that is used for inserting is locked in the described pipe coupling;
The 3rd O RunddichtringO is used for being tightly connected with pipeline outer wall formation after pipeline inserts joint;
O RunddichtringO crossette is located on the described pipeline body, is used to stop described the 3rd O RunddichtringO to move along duct orientation;
With the seal for pipe joints section;
It is characterized in that: also comprise lining, described lining comprises that inside has the bush body of axial passage, described bush body is by the joint linkage section that is used for docking with pipe coupling, with the pipeline linkage section that docks with pipeline, described joint linkage section is provided with an O RunddichtringO, is used for being tightly connected with the described seal for pipe joints section inwall formation of described pipe coupling; Described pipeline linkage section is provided with the 2nd O RunddichtringO, is used for being tightly connected with the inwall formation of described pipeline.
7. pipe coupling according to claim 6, it is characterized in that: the peripheral outer wall of described joint linkage section is provided with first position structure of a described O RunddichtringO, and the peripheral outer wall of described pipeline linkage section is provided with second position structure of described the 2nd O RunddichtringO.
8. pipe coupling according to claim 7, it is characterized in that: described first position structure is first groove of circumferential arrangement, a described O RunddichtringO is placed in described first groove, described second position structure is second groove of circumferential arrangement, and described the 2nd O RunddichtringO is placed in described second groove.
9. pipe coupling according to claim 8 is characterized in that: described joint body is along also comprising on the pipeline direction of insertion:
Take shape in the backstopping assembly on the described seal for pipe joints section inwall, be located on the described joint body inwall, be used to stop described lining to move along direction of insertion;
Described joint linkage section peripheral outer wall is provided with the flange of bush, and described first groove is located on the peripheral outer wall of the described flange of bush.
10. pipe coupling according to claim 9 is characterized in that:
Described first groove constitutes first wall near a side of described pipeline linkage section, and the opposite side relative with described first wall constitutes second wall, and described first wall and described second wall are distinguished ringwise, and the diameter of described first wall is greater than the diameter of described second wall;
Described backstopping assembly is for circumferentially taking shape in the pipeline convex shoulder on the described inner nosepiece wall, described convex shoulder ringwise, and its internal diameter is greater than the external diameter of described second wall, and less than the external diameter of described first wall, described O RunddichtringO back in described lining inserts described joint body forms sealing with the inwall of described convex shoulder and flexibly connects, described pipeline convex shoulder contacts with described first wall, thereby stops described lining to move along the pipeline direction of insertion.
11. pipe coupling according to claim 10 is characterized in that: described pipeline lock assembly comprises successively along the pipeline direction of insertion:
Locking cap is used to prevent that inner member from withdrawing from;
The locking cap backstopping assembly is located on the pipeline insertion end of described joint body and is used to prevent that described locking cap from withdrawing from;
Stripping ring, the card that is used to remove pipeline ends;
Snap ring has the cyclic spring flange and several are located on the described flange, is used to tighten the latch of pipeline outer wall;
Awl seat is slidingly connected with the inwall of described joint body, is used to stop described snap ring to move to the pipeline direction of insertion;
Awl seat convex shoulder is located on the inwall of described joint body, is used to stop described awl seat to move to the pipeline direction of insertion.
12. pipe coupling according to claim 11, it is characterized in that: described joint body comprises the O RunddichtringO section that is positioned between described O RunddichtringO convex shoulder and described awl seat convex shoulder, and described awl seat is provided with the protruding rank that slidably are connected with described O RunddichtringO section sealing near an end of described the 3rd O RunddichtringO.
13. pipe coupling according to claim 12 is characterized in that:
Axial distance between described O RunddichtringO convex shoulder and described awl seat is more than or equal to the 3rd O RunddichtringO axial thickness cause axial deformation when inserting pipeline after;
Described latch is at the diameter of the formed annulus of the nature external diameter less than the pipeline that is inserted into, and the internal diameter of described the 3rd O RunddichtringO is less than the external diameter of described pipeline, and the internal diameter of described stripping ring is greater than the external diameter of the described pipeline that passes described stripping ring;
Described awl seat is an annular, and has the conical surface that cooperates with described latch;
The locking cap convex shoulder is located on the described joint body inwall, is positioned between described snap ring and described locking cap, is used to stop described locking cap to move to described pipeline direction of insertion;
Form the stripping ring projection on the outer wall of described stripping ring, described stripping ring projection is used for cooperating with described locking cap preventing that described stripping ring breaks away from described joint between described snap ring and described locking cap.
Described stripping ring forms cone angle near an end of described snap ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206763352U CN202040457U (en) | 2010-12-23 | 2010-12-23 | Pipe joint bushing and pipe joint using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206763352U CN202040457U (en) | 2010-12-23 | 2010-12-23 | Pipe joint bushing and pipe joint using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040457U true CN202040457U (en) | 2011-11-16 |
Family
ID=44967899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206763352U Expired - Lifetime CN202040457U (en) | 2010-12-23 | 2010-12-23 | Pipe joint bushing and pipe joint using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121547A (en) * | 2010-12-23 | 2011-07-13 | 拉卡萨安吉拉股份有限公司 | Bushing for pipe joint and pipe joint adopting bushing |
| CN114673840A (en) * | 2022-02-25 | 2022-06-28 | 安徽宝立华机械设备有限公司 | High-pressure sealing joint and connecting method thereof |
-
2010
- 2010-12-23 CN CN2010206763352U patent/CN202040457U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121547A (en) * | 2010-12-23 | 2011-07-13 | 拉卡萨安吉拉股份有限公司 | Bushing for pipe joint and pipe joint adopting bushing |
| CN102121547B (en) * | 2010-12-23 | 2013-01-16 | 拉卡萨安吉拉股份有限公司 | Bushing for pipe joint and pipe joint adopting bushing |
| CN114673840A (en) * | 2022-02-25 | 2022-06-28 | 安徽宝立华机械设备有限公司 | High-pressure sealing joint and connecting method thereof |
| CN114673840B (en) * | 2022-02-25 | 2023-09-19 | 安徽宝立华机械设备有限公司 | High-pressure sealing joint and connecting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111116 Effective date of abandoning: 20130116 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |