CN202812614U - Bend for rapid connection of different pipes - Google Patents

Abstract

The utility model belongs to the technical field of pipeline connection and discloses a bend for rapid connection of different pipes. The bend comprises two mutually communicated insertion openings (11), at least two grooves (12) are arranged on the inner wall of each insertion opening (11), and a sealing ring (2) and elastic clamping pieces (3) are arranged in each groove (12). The bend is used only by extending the pipes into the insertion openings (11) so that connection can be completed. When the pipes extend into the insertion openings, the deformation amount of the elastic clamping pieces (3) are forced to be reduced, so that the pipes are mounted quite easily; and when the pipes are pulled out of the insertion openings (11), the deformation amount of the elastic clamping pieces (3) is increased, the pipes are pulled out quite difficultly, connection quality is good, and the pipes are less prone to abjection. The sealing rings (2) are sleeved on the outer surface of the pipes tightly to achieve sealing, so that sealing effect is good, and water leakage can be avoided.

Description

An elbow for quick connection of different pipe materials

technical field

The utility model belongs to the technical field of pipe connection, in particular to an elbow for quick connection of different pipe materials.

Background technique

With the development of new material technology, PVC-U, PPR, PB and other pipe materials have the advantages of low thermal conductivity, long service life, good heat resistance, corrosion resistance, no scaling, hygiene, non-toxic and recyclable. , It is widely used in industrial piping systems such as cold and hot water piping systems of buildings, pure water supply piping systems, central air-conditioning piping systems, and transportation or discharge of chemical media.

During the installation of these piping systems, it is often necessary to join pipes together. There are various methods of pipe connection. The most commonly used connection method is screw connection, but this method is limited by pipe specifications, installation sequence and installation space, especially when repairing the pipeline system, sometimes it is very inconvenient.

Another connection method is to use adhesives for bonding according to the material of the pipe. However, the adhesive used in this connection method is a chemical substance, and there should be no open flames during use to prevent the danger of fire sources. It will also be dangerous if construction personnel accidentally enter their eyes when using it; It will lead to curing and waste; in addition, it is not suitable for construction below -10 degrees, and it can be used more than 24 hours after construction; the adhesive is unevenly applied, the bonding effect is not good, and water leakage will occur.

Another method is to use a hot melt machine for hot melt connection. This welding method requires welding equipment and welding auxiliary equipment. It is inconvenient to bring equipment into the site for construction, and the project cost is relatively high. Welding needs to melt the material, which takes a long time, consumes a lot of power, and has low work efficiency. If the heat fusion is uneven, the welding effect is not good, and water leakage will occur.

However, it is more troublesome when connecting different pipes, such as connecting PVC-U pipes to PPR pipes, PVC-U pipes to PB pipes, and PPR pipes to PB pipes.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model designs an elbow for fast and simple connection of different pipe materials.

The specific solution of the utility model is: an elbow for quick connection of different pipe materials, including two interconnected sockets, the inner wall of the sockets is provided with at least two grooves, and the grooves are respectively provided with sealing rings and Flexible card.

When using the connector in this solution, the connection can be completed by simply extending the pipe material into the insertion port. When the pipe is inserted into the socket, the deformation of the elastic card is forced to decrease, and the pipe is easy to load; when the pipe is pulled out of the socket, the deformation of the elastic card increases, and the pipe is difficult to pull out. The quality of the connection is relatively good, and it is not easy to fall out. ;The sealing ring is tightly set on the outer surface of the pipe to realize the sealing connection, the sealing effect is good, and there will be no water leakage.

The above-mentioned elastic card includes an integral metal sheet body and a bending section, wherein the bending section is provided with at least two notches along the direction of the bending line; the elastic card is bent and put into the groove. Since the hardness of the elastic card is greater than that of the pipe, the end of the bent section is stuck into the outer surface of the pipe. The structure is simple and reasonable, and the elastic card has sufficient strength to hold the pipe. The elastic card is generally made of stainless steel, preferably SUS304.

In order to increase the firmness and sealing performance of the connection, the number of the above-mentioned grooves is four, and elastic cards are respectively arranged in three grooves, and a sealing ring is arranged in the other groove.

Each of the above-mentioned insertion ports is arranged in sequence along the insertion direction: an elastic card, an elastic card, an elastic card, and a sealing ring. This installation method can prevent liquid from flowing to the elastic card and affecting the clamping effect of the elastic card.

The ends of the above-mentioned bent sections are pointed or serrated, making it easier to snap into the surface of the pipe.

The parts of the above-mentioned joint except the sealing ring and the elastic card are directly injection-molded with PVC-U, PPR, and PB materials, and the processing is simple and the cost is low.

Compared with the prior art, the utility model mainly has the following beneficial effects: no special adhesive is required, the construction cost is low, the installation of pipes does not need to consider the influence of ambient temperature, and the pipeline system can be directly connected to the pipeline during the repair process, and can be immediately Use, no need to wait until the adhesive is cured, the installation is convenient and fast, and the efficiency is high.

Description of drawings

Fig. 1 is the cross-sectional structure schematic diagram after the connection of the utility model embodiment;

Fig. 2 is a schematic cross-sectional structure diagram of a connector in an embodiment of the present invention;

Fig. 3 is a schematic structural view of the elastic card in the embodiment of the utility model;

FIG. 4 is a schematic cross-sectional view of FIG. 3 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in FIG. 1 , an elbow for quick connection of different pipe materials includes two interconnected sockets 11 , a sealing ring 2 and an elastic card 3 .

The inner wall of the socket 11 is provided with four grooves 12, three of which are respectively provided with elastic cards 3, and the other groove 12 is provided with a sealing ring 2. The arrangement is as follows: along the insertion direction: elastic card 3, elastic card 3, elastic card 3, sealing ring 2. This installation method can increase the firmness and sealing performance of the connection, and can prevent the liquid from flowing to the elastic card 3 and affecting the clamping effect of the elastic card 3 .

As shown in Figures 2 and 3, the elastic card 3 includes an integral sheet metal body 31 and a bending section 32, wherein the bending section 32 is provided with five gaps along the bending line; in slot 12. Since the hardness of the elastic card 3 is greater than that of the pipe, the end of the bent section 32 is snapped into the outer surface of the pipe. The structure is simple and reasonable, and the elastic card 3 has sufficient strength to hold the pipe 2. The elastic card 3 is generally made of stainless steel, preferably SUS304.

As shown in FIG. 3 , the end of the bending section 32 in this embodiment is sharp-edged or serrated, which makes it easier to clip into the surface of the pipe.

The part of the joint other than the sealing ring 2 and the elastic card 3 is directly injection-molded with PVC-U, PPR, or PB materials, and the processing is simple and the cost is low.

As shown in FIG. 2 , when using the elbow of this embodiment, it is only necessary to insert the pipe material into the insertion port 11 to complete the connection. When the pipe material stretched into the insertion port 11, the deformation of the elastic card 3 was forced to shrink, and the pipe material was easy to pack into; The connection quality of this embodiment is relatively good, and it is not easy to come out; the sealing ring 2 is tightly sleeved on the outer surface of the pipe to realize the sealed connection, the sealing effect is good, and there will be no water leakage.

Claims (6)

1. different tubing connect fast and use elbow, comprise two interfaces that are interconnected (11), it is characterized in that: described interface (11) inwall is provided with two grooves (12) at least, is respectively equipped with seal ring (2) and elastic card (3) in the groove (12).

2. different tubing according to claim 1 connects fast and uses elbow, it is characterized in that: described elastic card (3) comprises tinsel body (31) and the bending section (32) of integral type, and wherein bending section (32) is provided with at least two breach along the bending line direction; Pack into after elastic card (3) bending in the groove (12).

3. different tubing according to claim 1 connects fast and uses elbow, it is characterized in that: the quantity of described groove (12) is four, wherein in three grooves (12) elastic card (3) is set respectively, seal ring (2) is set in another groove (12).

4. different tubing according to claim 3 connects fast and uses elbow, and it is characterized in that: described each interface (11) sets gradually along direction of insertion: elastic card (3), elastic card (3), elastic card (3), seal ring (2).

5. different tubing according to claim 2 connects fast and uses elbow, it is characterized in that: the end of described bending section (32) is tip-angled shape or is flexuose.

6. different tubing according to claim 1 connects fast and uses elbow, it is characterized in that: the part except seal ring (2) and elastic card (3) adopts PVC-U, PPR, the direct molding and forming of PB material.

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