CN201003662Y

CN201003662Y - Pipe fitting

Info

Publication number: CN201003662Y
Application number: CNU2007201059205U
Authority: CN
Inventors: 莫凡
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-23
Filing date: 2007-01-23
Publication date: 2008-01-09
Anticipated expiration: 2017-01-23

Abstract

The utility model makes the pipe under connection be arranged inside the pipe fitting body so as to avoid the defects that the pipe is formerly sleeved on the outer surface of the pipe fitting so as to impact the flow. The sealing ring is arranged on the inner wall of the pipe fitting body and a gasket is additionally arranged to compress the sealing ring so as to enhance the sealing performance; the inner wall of the pipe fitting body is designed into a ladder shape and is divided into three inner diameters with different sizes. The maximum inner diameter is the same as the outer diameter of the sealing ring and gasket, while the sealing ring is arranged close to the inner wall and ladder place so as to enhance the seal effect. The utility model changes the original copper material into nylon material so as to reduce the weight. The pipe fitting body is formed at one time and does not need not to be processed once again so as to stabilize the quality, save cost and be suitable for mass production.

Description

A kind of novel pipe fitting

Technical field

The utility model relates to a kind of pipe fitting, especially a kind of novel pipe fitting that is used for water receiving pipe.

Background technique

At present, being used to connect pipe fitting that aluminium-plastic composite pipe, PE-X pipe, PE-RT solar energy dedicated pipe use in water supply and sewage work connects and all adopts copper material to make through machining, then adopt the equal diameter tube-shaped joint of band seal groove to cooperate with the aluminium-plastic composite pipe connecting end, link into an integrated entity with aluminium-plastic composite pipe and tube-shaped joint fit sealing and with joint body by locking nut promotion hold-down ring again with the water pipe internal surface.As shown in Figure 1, main pipe body (15) is provided with outside thread (14), and snap ring (12) is located in the middle of locking cap (11) and the main pipe body (15), then is placed in tube wall during use, waits to take over to be coated on the main pipe body (5).External diameter to be taken over is 16mm, and when internal diameter was 12mm, its flow was 8mm.Exist sealing effect bad, flow is little, needs multi-step process, the cost height, and defectives such as quality instability in addition, with the big processing complex process of copper product consumption, are produced and the user cost height.

Summary of the invention

The purpose of this utility model is that design is a kind of rational in infrastructure, good airproof performance, the novel pipe fitting that cost is low.The technical solution of the utility model is so to realize:

A kind of novel pipe fitting, comprise locking cap (1), snap ring (2), seal ring (4) and main pipe body (5), the joint, two ends of main pipe body (5) is provided with outside thread (6), and the inner both sides of main pipe body (5) are respectively stair-stepping three chambeies: I level chamber (21), II level chamber (22), III level chamber (23); Seal ring (4) is located in the I level chamber (21), is close to stair-stepping inwall, by liner (3) it is compressed, and snap ring (2) is located between locking cap (1) and the liner (3); Material to be taken over (9) is connected in main pipe body (5) inner the I level chamber (21) and II level chamber (22).

As preferably, the internal diameter in I level chamber (21) all equates with the external diameter of seal ring (4) and liner (3).

As preferably, II level chamber (22) internal diameter is identical with the external diameter of material to be taken over (9), and III level chamber (23) internal diameter is greater than the internal diameter of material to be taken over (9).

As preferably, the boss (7) on the snap ring (2) is near the exterior edge face (8) of main pipe body (5).

As preferably, main pipe body (5), locking cap (1), snap ring (2), liner (3) are nylon material.

The utility model is located at the inside of main pipe body (5) with material to be taken over (9), and is not subjected to the restriction of thickness of pipe wall, the internal diameter of material to be taken over (9) with install after flow identical, be enclosed within the drawback that pipe fitting outer influences flow before this has just been avoided; Seal ring (4) has been placed on the inwall of main pipe body (5), and has added liner (3) and compress seal ring (4), makes better tightness; Be designed to the main pipe body inwall stepped, be divided into three internal diameters that vary in size, maximum internal diameter is identical with the external diameter of seal ring (4) and liner (3), when seal ring (4) is placed near inwall and ladder place, strengthened sealing effect, the internal diameter of minimum internal diameter ratio material to be taken over (9) is big, does not influence the flow that connects in the pipe of back.The utility model has changed copper product in the past into nylon material, has alleviated weight, and the main pipe body once-through need not be reprocessed, and makes steady quality, provides cost savings, and is applicable to production in enormous quantities.

Description of drawings

Accompanying drawing 1 is the structural representation of existing pipe fitting;

Accompanying drawing 2 is structural representations of the present utility model;

Accompanying drawing 3 is assembling of the present utility model back sectional views.

Embodiment

Below in conjunction with accompanying drawing,, the technical solution of the utility model is described in further detail by embodiment.

Embodiment: with reference to the accompanying drawings 2, accompanying drawing 3, a kind of novel pipe fitting, comprise locking cap (1), snap ring (2), seal ring (4) and main pipe body (5), the joint, two ends of main pipe body (5) is provided with outside thread (6), and the inner both sides of main pipe body (5) are respectively stair-stepping three chambeies: I level chamber (21), II level chamber (22), III level chamber (23); Seal ring (4) is located in the I level chamber (21), is close to stair-stepping inwall, by liner (3) it is compressed.The internal diameter in I level chamber (21) all equates with the external diameter of seal ring (4) and liner (3).

Snap ring (2) is located between locking cap (1) and the liner (3), which is provided with boss (7), is close to the end wall (8) of main pipe body (5), and it not only can compress liner (3) and seal ring (4) but also can prevent the tension that locking cap (1) is twisted and break.

Material to be taken over (9) is connected in inner I level chamber (21) of main pipe body (5) and the II level chamber (22), and snap ring during installation (2) is placed in the outer wall of material to be taken over (9).The identical 16mm that is of external diameter of II level chamber (22) internal diameter and material to be taken over (9), the internal diameter of material to be taken over (9) is 12mm, and III level chamber (23) internal diameter is 14mm, and the flow in the pipe after the installation is 12mm.

Main pipe body (5), locking cap (1), snap ring (2), liner (3) are nylon material.

Claims

1, a kind of novel pipe fitting, comprise locking cap (1), snap ring (2), seal ring (4) and main pipe body (5), the joint, two ends of main pipe body (5) is provided with outside thread (6), it is characterized in that the inner both sides of described main pipe body (5) are respectively stair-stepping three chambeies: I level chamber (21), II level chamber (22), III level chamber (23); Seal ring (4) is located in the I level chamber (21), is close to stair-stepping inwall, by liner (3) it is compressed, and snap ring (2) is located between locking cap (1) and the liner (3); Material to be taken over (9) is connected in main pipe body (5) inner the I level chamber (21) and II level chamber (22).

2, a kind of novel pipe fitting according to claim 1 is characterized in that the internal diameter in described I level chamber (21) all equates with the external diameter of seal ring (4) and liner (3).

3, a kind of novel pipe fitting according to claim 1 is characterized in that described II level chamber (22) internal diameter is identical with the external diameter of material to be taken over (9), and III level chamber (23) internal diameter is greater than the internal diameter of material to be taken over (9).

4, a kind of novel pipe fitting according to claim 1 is characterized in that boss (7) on the described snap ring (2) is near the exterior edge face (8) of main pipe body (5).

5,, it is characterized in that described main pipe body (5), locking cap (1), snap ring (2), liner (3) are nylon material according to claim 1 or 2 or 3 or 4 described a kind of novel pipe fittings.