CN204164571U - PVC drain pipe part joint - Google Patents

PVC drain pipe part joint Download PDF

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Publication number
CN204164571U
CN204164571U CN201420601165.XU CN201420601165U CN204164571U CN 204164571 U CN204164571 U CN 204164571U CN 201420601165 U CN201420601165 U CN 201420601165U CN 204164571 U CN204164571 U CN 204164571U
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CN
China
Prior art keywords
interface
inner seal
seal liner
adaptor tube
pvc
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.)
Active
Application number
CN201420601165.XU
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Chinese (zh)
Inventor
郭宗余
秦舒浩
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.)
Scientific And Technological Guan Ye Is Moulded By Guizhou State LLC
Original Assignee
Scientific And Technological Guan Ye Is Moulded By Guizhou State LLC
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.)
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Publication date
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Priority to CN201420601165.XU priority Critical patent/CN204164571U/en
Application granted granted Critical
Publication of CN204164571U publication Critical patent/CN204164571U/en
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Abstract

The utility model discloses a kind of PVC drain pipe part joint, comprise adaptor tube, each termination of adaptor tube is provided with the inner seal liner of interface and annular, the external diameter of inner seal liner is less than the internal diameter of interface, forms a seal groove between inner seal liner and interface; Interface and inner seal liner all connect as one with adaptor tube.Interface and inner seal liner all connect as one with adaptor tube by the utility model, make to form a seal groove between inner seal liner and interface, adhesive coating is not needed between the internal surface of interface and the outer surface of PVC pipe, not only remain the advantage of prior art PVC joint, and well improve sealing effect, ensure that combining closely of PVC pipe and joint, prevent from revealing.

Description

PVC drain pipe part joint
Technical field
The utility model relates to waste pipe technical field, especially a kind of PVC drain pipe part joint.
Background technique
PVC pipe is because having from heavy and light, corrosion-resistant, and compressive strength high, is widely used in construction industry.At present, the Connecting format of PVC pipe mainly adopts adhesive connected type and independent sealed circle connected type.In adhesive connected type, PVC drain pipe part and joint directly bond by main employing adhesive, because there is certain gap between PVC pipe and joint in installation process, if when adhesive coated is uneven or adhesive Amount of spread is less, easily produce water leakage phenomenon.And for seal ring connected type pipe fitting, in installation process, usually need leave certain gap for placing independent sealed circle and providing extendable room between bell-and-spigot pipe and jack tube, thus cause to free water leakage phenomenon at seal ring place when there is blocking.
Summary of the invention
The purpose of this utility model is: provide a kind of PVC drain pipe part joint, and it uses simple and reliable, and good airproof performance, to overcome the deficiencies in the prior art.
The utility model is achieved in that PVC drain pipe part joint, comprise adaptor tube, each termination of adaptor tube is provided with the inner seal liner of interface and annular, and the external diameter of inner seal liner is less than the internal diameter of interface, forms a seal groove between inner seal liner and interface; Interface and inner seal liner all connect as one with adaptor tube.
The internal diameter of described interface is greater than the termination internal diameter of adaptor tube, and the transition structure between interface and adaptor tube termination is boss.Such structure can make seal groove be on the termination of adaptor tube, can increase the intensity of seal groove, reduces the possibility that seal groove when mounted damages.
Described inner seal liner is inclination 5-10 ° laterally.Such structure can make connection pvc pipe after entering seal groove, have an active force clamped, and improves sealing effect.
Owing to have employed technique scheme, compared with prior art, interface and inner seal liner all connect as one with adaptor tube by the utility model, make to form a seal groove between inner seal liner and interface, between the internal surface of interface and the outer surface of PVC pipe, do not need adhesive coating, not only remain the advantage of prior art PVC joint, and well improve sealing effect, ensure that combining closely of PVC pipe and joint, prevent from revealing.The utility model structure is simple, and with low cost, using effect is good.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Embodiment of the present utility model: the structure of PVC drain pipe part joint as shown in Figure 1, the adaptor tube 1(comprising three-port structure is also applicable to the pipe fitting joint such as elbow, vertical inspection mouth), each termination of adaptor tube 1 is provided with the inner seal liner 3 of interface 2 and annular, the internal diameter of described interface 2 is greater than the termination internal diameter of adaptor tube 1, and the transition structure between interface 2 and adaptor tube 1 termination is boss; The external diameter of inner seal liner 3 is less than the internal diameter of interface 2, and inner seal liner 3 tilts 5 ° laterally, and the width forming a seal groove 4(sealing groove 4 between inner seal liner 3 and interface 2 will ensure PVC pipe energy termination can be entered); Interface 2 and inner seal liner 3 all connect as one with adaptor tube 1, when making, adopt Corvic by Shooting Technique once-through.
When mounted, PVC pipe inserted in interface 2, until the termination of PVC pipe enters seal groove 4 completely, now, inner seal liner 3 is connected on the internal surface of PVC pipe.

Claims (3)

1. a PVC drain pipe part joint, comprise adaptor tube (1), it is characterized in that: the inner seal liner (3) being provided with interface (2) and annular on each termination of adaptor tube (1), the external diameter of inner seal liner (3) is less than the internal diameter of interface (2), forms a seal groove (4) between inner seal liner (3) and interface (2); Interface (2) and inner seal liner (3) all connect as one with adaptor tube (1).
2. PVC drain pipe part joint according to claim 1, is characterized in that: the internal diameter of described interface (2) is greater than the termination internal diameter of adaptor tube (1), and the transition structure between interface (2) and adaptor tube (1) termination is boss.
3. PVC drain pipe part joint according to claim 1, is characterized in that: described inner seal liner (3) inclination 5-10 ° laterally.
CN201420601165.XU 2014-10-17 2014-10-17 PVC drain pipe part joint Active CN204164571U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420601165.XU CN204164571U (en) 2014-10-17 2014-10-17 PVC drain pipe part joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420601165.XU CN204164571U (en) 2014-10-17 2014-10-17 PVC drain pipe part joint

Publications (1)

Publication Number Publication Date
CN204164571U true CN204164571U (en) 2015-02-18

Family

ID=52538258

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420601165.XU Active CN204164571U (en) 2014-10-17 2014-10-17 PVC drain pipe part joint

Country Status (1)

Country Link
CN (1) CN204164571U (en)

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