CN205244675U - Conversion connecting device of straight tube and bellows - Google Patents

Abstract

The utility model discloses a conversion connection device for a straight pipe and a corrugated pipe, which comprises a corrugated pipe interface, a straight pipe interface, and a pipe fitting connecting body. The body is connected with the straight pipe interface, and the bellows interface includes a compression nut, a flat gasket, and a sealing ring pad. The compression nut is arranged in the pipe fitting body, and the compression nut is provided with the A flat pad, the flat pad is provided with the sealing ring pad, the straight pipe interface includes an O-shaped sealing ring, a plastic gasket, a spring device, and a locking device, and the O-shaped sealing ring is provided with the spring device, It is arranged in the connecting body of the pipe fitting, there are two O-rings, the plastic gasket is placed between the two O-rings, and the locking device is arranged on the O-rings. The utility model has the advantages of convenient assembly, small volume and low cost, and is convenient for conversion and connection between straight pipes and corrugated pipes.

Description

A conversion connection device for straight pipe and corrugated pipe

technical field

The utility model relates to the technical field of pipe connection, in particular to a conversion connection device for a straight pipe and a corrugated pipe.

Background technique

At present, the known pipeline connection devices are mainly connected by a press-type connector, but the operation is inconvenient during assembly, and it is easy to leak water and air. There is also a method of setting a circular sealing ring in the connecting device in order to solve the problem of poor sealing. After the assembly is pressed and assembled, the circular sealing ring is deformed into a hexagonal sealing ring in order to achieve the purpose of sealing, but because the sealing ring itself When the pipe rotates, it returns to the circular sealing ring and loses the sealing effect, and due to its thermal expansion and contraction, it is still easy to deform and leak, and it cannot be repaired and maintained, because the hexagonal shape is restored to the circular sealing ring. It may be stuck again and cannot be installed again. The inventor of the utility model completely overcomes the above-mentioned technical shortcomings through repeated tests and repeated designs for the existing technology, thereby making a utility model creation.

In actual engineering, conversion connections between straight pipes and corrugated pipes are often required. The main links that require corrugated pipe connections are: (1) the connection between the water supply pipe and the water dispenser; (2) the buried pipe. The main purpose is to use the flexibility and length of the bellows to minimize the use of connectors. However, for the stability or decoration of the system, the main water pipeline is often straight. Just often need to have a kind of conversion joint in life like this, is convenient to the conversion connection between straight pipe and corrugated pipe.

Utility model content

In view of this, the utility model provides a conversion connection device for straight pipes and corrugated pipes, which solves the problem that the prior art pipeline connection cannot connect straight pipes and corrugated pipes.

The technical means adopted in the utility model are as follows:

A conversion connection device for a straight pipe and a corrugated pipe, comprising a corrugated pipe interface, a straight pipe interface, and a pipe fitting connecting body, the pipe fitting connecting body is a cavity structure, and the bellows pipe connecting body is connected to the straight pipe connecting body. The bellows interface includes a compression nut, a flat washer, and a gasket. The compression nut is arranged in the connecting body of the pipe fitting, and the compression nut is provided with the flat washer. The flat gasket is provided with the sealing ring pad, and the straight pipe interface includes an O-shaped sealing ring, a plastic gasket, a spring device, and a locking device. The O-shaped sealing ring is provided with the spring device, which is arranged on the pipe fitting In the connecting body, there are two O-rings, the plastic gasket is placed between the two O-rings, and the locking device is arranged on the O-rings.

Preferably, the spring device includes a spring disk and a spring, the spring disk is provided with the spring, the locking device includes a steel jaw, a snap ring, and a plastic support ring, and the steel jaw and the plastic The supporting ring is connected, and the plastic supporting ring is connected with the snap ring.

The conversion and connection device between straight pipe and corrugated pipe provided by the utility model has the advantages of convenient assembly, small volume and low cost, and is convenient for conversion and connection between straight pipe and corrugated pipe.

Description of drawings

Fig. 1 is the structural representation of the utility model.

detailed description

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

Referring to Fig. 1, a conversion connection device for a straight pipe and a corrugated pipe includes a corrugated pipe interface 1, a straight pipe interface 2, and a pipe fitting connector 3. The pipe fitting connector 3 is a cavity structure, and the bellows pipe interface 1 passes through The pipe connecting body 3 is connected with the straight pipe interface 2, so that the corrugated pipe and the straight pipe can be effectively connected and used. The bellows interface 1 includes a compression nut 4, a flat gasket 5, and a sealing ring gasket 6, and the compression nut 4 is arranged in the pipe fitting connecting body 3, so that the pipe fitting connecting body 3 and the bellows are tightly connected, To achieve a complete sealing effect. The compression nut 4 is provided with the flat washer 5 , and the flat washer 5 is provided with the sealing ring gasket 6 , so that the bellows and the pipe connecting body 3 are better engaged and sealed. Put the length of the three peaks at the end of the corrugated pipe into a special tool (flat mouth tool), and perform hammer pressing to make the three peaks squeeze and overlap to form a smooth plane. At this time, the outer diameter of the plane is nearly 2mm wider than the peak outer diameter of the original bellows. Place a flat washer 5 and a compression nut 4 sequentially behind the plane. Insert the flat end of the bellows into the bellows interface 1 (the inner bottom end surface of the interface is also a plane structure) in the conversion connection device, between the flat end of the bellows and the inner bottom end surface of the bellows interface 1 Place a gasket 6. Screw in the compression nut 4 to make the flat end of the bellows compress the gasket 6 until the compression nut 4 is screwed flat with the interface port of the bellows. The straight pipe interface 2 includes an O-shaped sealing ring 7, a plastic gasket 8, a spring device 9, and a locking device 10. The O-shaped sealing ring 7 is arranged in the pipe connecting body 3, and the O-shaped sealing ring 7 There are two, the plastic gasket 8 is placed between the two O-rings 7 , and the locking device 10 is arranged on the O-rings 7 . Described spring device 9 comprises spring plate 91, spring 92, and described spring plate 91 is provided with described spring 92, and described locking device 10 comprises steel jaw 101, snap ring 102, plastic support ring 103, and described steel The jaw 101 is connected with the plastic support ring 103 , and the plastic support ring 103 is connected with the snap ring 102 . The straight pipe can be tightly connected to the pipe connecting body 3 .

To sum up, the straight pipe and corrugated pipe conversion and connection device provided by the utility model has the advantages of convenient assembly, small size and low cost, and is convenient for conversion and connection between straight pipes and corrugated pipes.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (2)

1. a conversion jockey for straight tube and bellows, is characterized in that, comprises bellows interface, straightInterface tube, pipe fitting connector, described pipe fitting connector is cavity structure, described in described bellows interface passes throughPipe fitting connector is connected with described straight tube interface, and described bellows interface comprises clamp nut, plain cushion, closeSeal pad, described clamp nut is arranged in described pipe fitting connector, described in being provided with on described clamp nutPlain cushion, is provided with described sealed loop-pad on described plain cushion, described straight tube interface comprises O RunddichtringO, plasticsPacking ring, spring assembly, locking device, described O RunddichtringO is provided with described spring assembly, is arranged at instituteState in pipe fitting connector, described O RunddichtringO is two, and it is close that described plastic washer is placed in two described O typesBetween seal, on described O RunddichtringO, be provided with described locking device.

2. the conversion jockey of straight tube according to claim 1 and bellows, is characterized in that, instituteState spring assembly and comprise spring holder, spring, on described spring holder, be provided with described spring, described locking deviceComprise pucellas openning, snap ring, plastic support circle, described pucellas openning is connected with described plastic support circle,Described plastic support circle is connected with described snap ring.