CN103062563A - Detachable plastic tube interface - Google Patents

Abstract

The invention discloses a detachable plastic tube interface which comprises a sleeve tube and a sealing ring, wherein an expansion hole with the diameter larger than the diameter of an inner hole is arranged at the opened end of the sleeve tube, the sealing ring is arranged in the expansion hole, a pressure ring is connected on a port of the expansion hole of the sleeve tube through threads, a port is arranged at the front end of the sealing ring, and a strip-shaped object with a plug is arranged at the tail end of the sealing ring. A tube body is inserted into the sleeve tube, and the sealing ring is connected among the sleeve tube, the tube body and the pressure ring in pressing mode. The detachable plastic tube interface is simple in structure, convenient to install and maintain and can be widely applied to tube interfaces of various water discharging tubes made of polyvinyl chloride plastics.

Description

Detachable joint for plastic tube

Technical field

The present invention relates to plastic article manufacturing technology field, especially a kind of joint that has between the pipe.

Background technique

The igelite waste pipe is own through being widely used in the national economy every field at present, and the joint for plastic tube that connects the igelite waste pipe is one of them pith; In the prior art, a kind of pvc tube joint is arranged, comprise inner sleeve, positioning ring, cutting ferrule, seal ring and outer sleeve, wherein seal ring is placed in the groove of outer sleeve, the cutting ferrule subcard advances the groove outer wall of outer sleeve, inner sleeve inserts the inner chamber of outer sleeve, directly polychloroethylene pipes is inserted the inner chamber of inner sleeve during use, positioning ring is sticked into the outer wall of inner sleeve.

There is following deficiency in this joint for plastic tube:

1, pipe joint structure is complicated, and part is more, and manufacture cost is high.

2, this joint dismounting inconvenience, in the time of need to changing seal ring when joint leaks, seal ring is difficult to take out, and is therefore difficult in maintenance, often needs whole pipe joint is destroyed, and causes unnecessary waste.

Summary of the invention

The purpose of this invention is to provide a kind of detachable joint for plastic tube, this pipe joint can solve the problem of joint for plastic tube complex structure of the prior art, dismounting inconvenience, maintenance difficult.

In order to address the above problem, the technical solution used in the present invention is:

This detachable joint for plastic tube comprises that opening end is provided with diameter greater than the outer sleeve and the seal ring that is contained in the described expanded bore of the expanded bore in inner aperture, has been threaded connection a pressure ring on the port of the expanded bore of described outer sleeve; Described seal ring is that head end is provided with socket, and end is provided with the bar of plug.

In the above technological scheme, further scheme can be: have a body to be inserted in the described outer sleeve, described seal ring is crimped between described outer sleeve, body and the pressure ring.

Owing to adopted technique scheme, the present invention compared with prior art has following beneficial effect:

1, the detachable joint for plastic tube is simple in structure, part is few, low cost of manufacture.

2, the installation, maintenance of detachable joint for plastic tube is convenient.

Description of drawings

Fig. 1 is prior art joint for plastic tube plan view.

Fig. 2 is the detachable joint for plastic tube plan view of the present invention.

Fig. 3 is the outer sleeve plan view.

Fig. 4 is the pressure ring plan view.

Fig. 5 is the pressure ring left view.

Fig. 6 is the seal ring plan view.

Embodiment

The invention will be further described below in conjunction with the accompanying drawing example:

In the prior art shown in Figure 1, a kind of pvc tube joint is arranged, compriseinner sleeve 11, positioningring 12, cutting ferrule 14, seal ring 13 andouter sleeve 15, wherein seal ring 13 is placed in the groove ofouter sleeve 15, cuttingferrule 4 sticks into the groove outer wall ofouter sleeve 15,inner sleeve 11 inserts the inner chamber ofouter sleeve 15, directly polychloroethylene pipes is inserted the inner chamber ofinner sleeve 11 during use, positioningring 12 is sticked into the outer wall ofinner sleeve 11.

Detachable joint for plastic tube shown in Figure 2 comprises that opening end is provided with diameter greater than theouter sleeve 4 and theseal ring 3 that is contained in the expanded bore of the expanded bore in inner aperture, has been threaded connection apressure ring 2 on the port of the expanded bore ofouter sleeve 4;Seal ring 3 is that head end is provided with socket, and end is provided with the bar of plug;

Have abody 1 to be inserted in theouter sleeve 4,seal ring 3 is crimped onouter sleeve 4, betweenbody 1 and thepressure ring 2.

Long service time when joint for plastic tube, sealring 3 breakages of the inside cause joint for plastic tube to leak when needing repairing, and only needpressure ring 2 is screwed outouter sleeve 4, changeold seal ring 3 with Xinmi City'sseal 3, such as figure

Shown in 6, againpressure ring 2 is screwed inouter sleeves 4 and compress Xinmi City's seal 3 and get final product.

This detachable joint for plastic tube is mainly used in the connection between the plastic tube, but according to structure and the design of detachable joint for plastic tube of the present invention, this joint is not limited to plastic tube, also can be used on the pipe that other material such as metal makes.

Claims (2)

1. detachable joint for plastic tube, comprise that opening end is provided with diameter greater than the outer sleeve (4) of the expanded bore in inner aperture and is contained in the interior seal ring (3) of described expanded bore, is characterized in that: be threaded connection a pressure ring (2) on the port of the expanded bore of described outer sleeve (4); Described seal ring (3) is that head end is provided with socket, and end is provided with the bar of plug.

2. detachable joint for plastic tube according to claim 1, it is characterized in that: have a body (1) to be inserted in the described outer sleeve (4), described seal ring (3) is crimped between described outer sleeve (4), body (1) and the described pressure ring (2).

Images