CN2562023Y

CN2562023Y - Double layer connecting pipe fitting with saft inner lining

Info

Publication number: CN2562023Y
Application number: CN 02280618
Authority: CN
Inventors: 王作为
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-21
Filing date: 2002-10-21
Publication date: 2003-07-23
Anticipated expiration: 2012-10-21

Abstract

A bi-layer connecting pipe fitting with a soft inner layer relates to a connector of drainage pipe. A soft muffling sleeve (2) is fixedly connected with the inner wall of a single-layer connecting pipe fitting (1), the soft muffling sleeve (2) and the connecting pipe fitting (1) are made and processed separately to form a double-bodied structure, and the shape of the soft muffling sleeve (2) fits with that of the inner wall of the connecting pipe fitting (1). The interface of the connecting pipe fitting (1) is a cylindrical nozzle, a connected pipe (5) and the interface (3) are connected in a plugging way, and sealants (6) are provided at the connection of the interface (3) and the connected pipe (5). The utility model resolves the problem that the prior multilayer connecting pipe fitting is complicated in terms of manufacturing technique, difficult in processing dies, as well as the problems of high cost, non-ideal noise absorption, and the non-ideal sealing effect between connecting pipe fittings and pipes.

Description

Double-deck connection pipe fitting with soft inner layer

Technical field: the utility model relates to the link of waste pipe.

Background technique: present widely used waste pipe link comprises that threeway, elbow etc. all are that individual layer constitutes, and noise greatly, has seriously influenced people's work and life during use.Chinese patent CN2499671Y has announced a kind of " multilayer silencing connection pipe fitting " on July 10th, 2002, there is following shortcoming in this connection pipe fitting: (one) is because it is to be made by harder material PVC, therefore the multi-layer wall of this connection pipe fitting can only be to be injection molded into integrative-structure, has manufacturing process complexity, the processing mold difficulty is big, cost is high problem; (2) make by hard material owing to its internal and external layer, so the effect of its absorption noise is relatively poor; (3) jointing of existing connection pipe fitting has screw thread, by nut sewer and connection pipe fitting is fixed together, and with the sealing gasket sealing, because sealing gasket is easily aging, breakage can cause leakage, sealability is reduced.

Summary of the invention: the utility model for the manufacturing process complexity that solves existing multilayer connection pipe fitting and exist, the processing mold difficulty is big, cost is high, absorb that the unfavorable problem of sealing effect designs a kind of double-deck connection pipe fitting with soft inner layer between noise undesirable and connection pipe fitting and the pipe.The purpose of this utility model realizes in the following manner: be fixedly connected with soft noise reduction cover 2 on the inwall of the connection pipe fitting 1 of individual layer, soft noise reduction cover 2 is two body structures of being processed into respectively with connection pipe fitting 1, and soft noise reduction cover 2 matches with the shape of connection pipe fitting 1 inwall.Owing to soft noise reduction cover 2 is two body structures of being processed into respectively with connection pipe fitting 1, soft noise reduction cover 2 can be easy to be encased in the inside of connection pipe fitting 1, has therefore simplified manufacturing process, and easy processing mold, and cost of production has reduced by one times; Again because soft noise reduction cover 2 has good vibration silencer effect, and soft noise reduction cover 2 constitutes double-layer tube wall structure with connection pipe fitting 1, therefore improved the vibration silencer effect of this connection pipe fitting.The interface 3 of connection pipe fitting 1 of the present utility model is a cylindrical nozzle, and connected tube 5 adopts the mode of pegging graft to be connected with interface 3, is provided with sealer 6 in the joint of interface 3 inwalls and connected tube 5 outer walls.This structure has excellent sealing performance, has avoided existing thread connecting mode to cause leakage problem because of sealing gasket is damaged, has improved sealability.

Description of drawings: Fig. 1 is the structural representation of embodiment one, and Fig. 2 is the structural representation of embodiment two, and Fig. 3 is that 2 structural representation is overlapped in soft noise reduction.

Embodiment one: the double-deck connection pipe fitting with soft inner layer of present embodiment is made up of the connection pipe fitting 1 of individual layer and soft noise reduction cover 2.Soft noise reduction cover 2 is two body structures of being processed into respectively with connection pipe fitting 1.Connection pipe fitting 1 is the Three way type shape, is arranged on the soft noise reduction cover 2 of connection pipe fitting 1 inside and the shape of connection pipe fitting 1 inwall and matches.Outer surface at soft noise reduction cover 2 has vertical, horizontal or crisscross fin 7, and fin 7 makes the soft noise reduction cover 2 and the inwall of connection pipe fitting 1 form the gap, to improve erasure effect.Form ring-shaped step 4 between the interface 3 of connection pipe fitting 1 and the inwall of connection pipe fitting 1, the annular ridge 8 that 2 mouths of pipe outside is overlapped in soft noise reduction is stuck in ring-shaped step 4 outsides.Three annular ridges 8 of the soft noise reduction cover 2 of three-way shape are stuck on three ring-shaped steps 4.The interface 3 of connection pipe fitting 1 is a cylindrical nozzle, and connected tube 5 adopts the mode of pegging graft to be connected with interface 3, is provided with sealer 6 in interface 3 and connected tube 5 joints.

Embodiment two: what present embodiment and embodiment one were different is, connection pipe fitting 1 is the bending head type shape, and two annular ridges 8 of the soft noise reduction cover 2 of elbow shape are stuck in the outside of two ring-shaped steps 4 of connection pipe fitting 1.Other composition is identical with embodiment one with annexation.

Claims

1, the double-deck connection pipe fitting that has soft inner layer, it is characterized in that being fixedly connected with soft noise reduction cover (2) on the inwall of connection pipe fitting (1) at individual layer, soft noise reduction cover (2) is two body structures of being processed into respectively with connection pipe fitting (1), and soft noise reduction cover (2) matches with the shape of connection pipe fitting (1) inwall.

2, the double-deck connection pipe fitting with soft inner layer according to claim 1 is characterized in that the interface (3) of connection pipe fitting (1) is cylindrical nozzle, is provided with sealer (6) in the joint of interface (3) inwall and connected tube (5) outer wall.

3, the double-deck connection pipe fitting with soft inner layer according to claim 1 is characterized in that at the outer surface of soft noise reduction cover (2) vertical, horizontal or crisscross fin (7) being arranged.

4, according to claim 1,2 or 3 described double-deck connection pipe fittings with soft inner layer, it is characterized in that forming ring-shaped step (4) between the inwall of the interface (3) of connection pipe fitting (1) and connection pipe fitting (1), the annular ridge (8) in soft noise reduction cover (2) mouth of pipe outside is stuck in the outside of ring-shaped step (4).