CN218378277U

CN218378277U - A kind of novel pipe fitting

Info

Publication number: CN218378277U
Application number: CN202221505526.1U
Authority: CN
Inventors: 宋国泉
Original assignee: Jiangsu Jinfeite Pipe Industry Co ltd
Current assignee: Jiangsu Jinfeite Pipe Industry Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2023-01-24
Anticipated expiration: 2032-06-16

Abstract

The utility model relates to a novel pipe fitting, which comprises a connecting pipe fitting, wherein the connecting pipe fitting comprises a metal connecting inner pipe and a plastic connecting outer pipe, the metal connecting inner pipe comprises a fixed pipe and a connecting pipe, the outer wall of the fixed pipe is provided with threads, and the connecting pipe is in threaded connection with the fixed pipe; when two bodys when interconnect, can not guarantee in the middle of being used for connecting the length of the connection pipe fitting of two bodys and just, so provide a connection pipe fitting that can adjust length in this application, the both ends of connecting the pipe fitting are metallic interconnect head and plastic connector respectively, and the metallic interconnect head is including fixed pipe and connecting pipe again, connecting pipe and fixed pipe threaded connection, when adjusting the position relation between connecting pipe and the fixed pipe, has been equivalent to the length of connecting the body promptly.

Description

Novel pipe fitting

Technical Field

The utility model relates to a pipe fitting, in particular to novel pipe fitting.

Background

The Polyethylene (PE) water supply pipe gradually replaces the PVC-U pipeline due to good toughness and sanitary performance, and becomes a mainstream product in the urban water supply field.

Therefore, in the actual arrangement of the pipelines, the metal pipelines and the plastic pipelines are often used in a matching way, so that the metal pipelines and the plastic pipelines need to be connected by using joint pipe fittings; in the prior art, the metal pipeline and the plastic pipeline are connected in a plurality of ways, the simplest way is to sleeve the plastic pipe on the metal pipe and fix the plastic pipe by using an iron wire, and the connection firmness is low and the operation is complex; there are also five commercially common attachment means, see below:

1. hot melting connection of

The hot-melt connection is carried out by heating the to-be-connected part of the polyethylene pipe or pipe under pressure by a special heating tool, melting, removing the heating tool, applying pressure to connect the two melting surfaces together, and keeping under stable pressure for a period of time until the joint is cooled. The hot melt connection comprises hot melt butt joint connection, hot melt socket connection and hot melt saddle connection.

2. Electrofusion fastening

The electric smelting connection is that the special electric smelting pipe fitting with the embedded resistance wire is closely contacted with the connecting part of the pipe or the pipe fitting for electrification, and the connecting part is heated by the embedded resistance wire to be fused and connected into a whole until the joint is cooled. Electrofusion couplings may be used to join polyethylene pipes or spigot pipes of different types and different melt flow rates. The electric smelting connection is divided into electric smelting socket connection and electric smelting saddle type connection.

3. Socket type flexible connection

The socket flexible connection of polyethylene pipe is developed based on the socket flexible connection principle of cast iron pipe and polyvinyl chloride pipe (PVC U), and features that a reinforced polyethylene socket is welded to one end of polyethylene pipe. The socket type flexible connection is characterized in that one end of a polyethylene pipe is directly inserted into a special bell mouth of the pipe or the pipe fitting, and the pipe fitting are connected by compressing, pulling-resistant and rubber sealing rings through locking rings in the bell mouth and compressing and sealing the rubber sealing rings.

4. Flange connection

The flange connection is mainly used for connecting a polyethylene pipeline with a metal pipeline or accessory equipment such as a valve, a flowmeter, a pressure gauge and the like. The flange connection mainly comprises a polyethylene flange connecting piece, a steel or aluminum backpressure loose flange, a steel or aluminum flange sheet, a gasket or a sealing ring, a bolt, a nut and the like. The flange connection is realized by tightly contacting the flange connecting piece and the flange sheet through fastening bolts and nuts, so that the connection purpose is achieved.

5. Steel plastic transition joint connection

The steel-plastic transition joint is connected by connecting a polyethylene pipeline and a metal pipeline through a steel-plastic transition joint prefabricated by cold pressing or other methods. The steel-plastic transition joint is internally provided with a pulling-resistant locking ring and a sealing ring, and generally requires good sealing performance and pulling-resistant and pressure-resistant performance to be higher than those of a polyethylene pipeline in a system.

However, in any of the above connecting pipes, the lengths of the connected pipes are just needed to be connected, but the lengths of the produced pipes are not just right, so that field cutting is often needed when the pipes are connected; however, in the case of daily household use, since the household does not have cutting conditions, the connection is facilitated, and the use rate is low.

Therefore, the technical scheme of the application for protection is that the connecting pipe fitting can be used for quickly connecting two groups of pipe fittings and can be finely adjusted in length.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel pipe fitting.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a novel pipe fitting, is including connecting the pipe fitting, it includes metal connection inner tube and plastic connection outer tube to connect the pipe fitting, the metal connection inner tube is including fixed pipe and connecting pipe, fixed outer wall of tubes is provided with the screw thread, connecting pipe threaded connection is on fixed pipe.

Through adopting above-mentioned technical scheme, when two bodys when interconnect, can not guarantee in the middle of being used for connecting the length of the connection pipe fitting of two bodys just, so provide a connection pipe fitting that can adjust length in this application, the both ends of connecting the pipe fitting are metallic interconnect head and plastic connector respectively, and metallic interconnect head is including fixed pipe and connecting pipe again, connecting pipe and fixed pipe threaded connection, when adjusting the position relation between connecting pipe and the fixed pipe, the length of connecting the body has been adjusted in other words promptly.

Preferably, the outer wall of the fixing pipe extends to form a limiting table, and the inner wall of the connecting pipe extends to form a butting table.

Through adopting above-mentioned technical scheme, spacing platform and butt platform cooperation can avoid rotatory fixed pipe that leads to too much to break away from with the connecting pipe.

Preferably, the outer wall of the fixed pipe is further provided with an external fixed ring, and the external fixed ring is arranged in parallel with the limiting table.

Preferably, an adjusting groove is formed between the external fixing ring and the limiting table, and a U-shaped fixing piece is arranged at the adjusting groove of the plastic connecting outer pipe.

Preferably, the U-shaped fixing member is made of flexible rubber.

Preferably, the U-shaped fixing member has a saw-toothed cross-sectional shape.

By adopting the technical scheme, the plastic connecting outer pipe can have a certain adjustable space due to the arrangement.

Preferably, one end of the plastic connecting outer pipe is connected to the fixed pipe, and the other end of the plastic connecting outer pipe is connected to the connecting pipe.

To sum up, the utility model discloses following beneficial effect has:

the connecting pipe fitting comprises a metal connecting inner pipe and a plastic connecting outer pipe, the metal connecting inner pipe can ensure the integral connecting strength, the plastic connecting outer pipe ensures the sealing performance of the integral structure, and the two ends of the structure are respectively a metal end and a plastic end, so that the connecting pipe fitting can be conveniently connected with the pipe fittings at the two ends; the length of the whole structure can be adjusted by rotating the connecting pipe and the fixing pipe, and the length of the plastic connecting outer pipe can be adjusted in a matching manner by arranging the U-shaped fixing piece with the sawtooth-shaped section when the length of the metal connecting inner pipe is adjusted.

Drawings

FIG. 1 is a sectional view of the whole structure in the embodiment;

FIG. 2 is a sectional view of a part of the structure in the embodiment.

In the figure, 1, connecting pipe fittings; 11. the metal is connected with the inner pipe; 111. fixing the tube; 112. a connecting pipe; 113. a butting stand; 114. a limiting table; 115. a fixed ring is externally connected; 116. adjusting the groove; 117. a U-shaped fixing member; 12. the plastic is connected with the outer pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b): a novel pipe fitting, as shown in figure 1, comprises a connecting pipe fitting 1, wherein the connecting pipe fitting 1 comprises a metal connecting inner pipe 11 and a plastic connecting outer pipe 12, the metal connecting inner pipe 11 comprises a fixed pipe 111 and a connecting pipe 112, the outer wall of the fixed pipe 111 is provided with threads, and the connecting pipe 112 is in threaded connection with the fixed pipe 111.

As shown in fig. 1, the outer wall of the fixing tube 111 is extended to form a limit stand 114, and the inner wall of the connecting tube 112 is extended to form a contact stand 113.

As shown in fig. 1, the outer wall of the fixing tube 111 is further provided with an external fixing ring 115, and the external fixing ring 115 is parallel to the position-limiting table 114.

As shown in fig. 1, an adjusting groove 116 is formed between the external fixing ring 115 and the position-limiting table 114, and a U-shaped fixing member 117 is disposed at the adjusting groove 116 of the plastic connecting outer tube 12.

As shown in fig. 1, the U-shaped fastener 117 is made of flexible rubber.

As shown in fig. 1 and 2, the U-shaped fixing member 117 has a saw-toothed cross-sectional shape.

As shown in fig. 1, one end of the outer plastic connecting pipe 12 is connected to the fixed pipe 111, and the other end is connected to the connecting pipe 112, and the end of the outer plastic connecting pipe 12 located at the connecting pipe 112 can be elastically abutted.

The working principle is as follows: the connecting pipe fitting comprises a metal connecting inner pipe and a plastic connecting outer pipe, the metal connecting inner pipe can ensure the integral connecting strength, the plastic connecting outer pipe ensures the sealing performance of the integral structure, and the two ends of the structure are respectively a metal end and a plastic end, so that the connecting pipe fitting can be conveniently connected with the pipe fittings at the two ends; the length of the whole structure can be adjusted by rotating the connecting pipe and the fixing pipe, and the length of the plastic connecting outer pipe can be adjusted in a matching manner by arranging the U-shaped fixing piece with the sawtooth-shaped section when the length of the metal connecting inner pipe is adjusted.

Claims

1. A new pipe fitting, including connecting the pipe fitting (1), its characterized in that: connect pipe fitting (1) including metal connection inner tube (11) and plastic connection outer tube (12), metal connection inner tube (11) are including fixed pipe (111) and connecting pipe (112), fixed pipe (111) outer wall is provided with the screw thread, connecting pipe (112) threaded connection is on fixed pipe (111).

2. The new pipe fitting according to claim 1, characterized in that: the outer wall of the fixed pipe (111) extends to be provided with a limiting table (114), and the inner wall of the connecting pipe (112) extends to be provided with a butting table (113).

3. The new pipe fitting of claim 2, wherein: the outer wall of the fixed pipe (111) is further provided with an external fixed ring (115), and the external fixed ring (115) is arranged in parallel with the limiting table (114).

4. The new pipe fitting according to claim 3, characterized in that: an adjusting groove (116) is formed between the external fixing ring (115) and the limiting table (114), and a U-shaped fixing piece (117) is arranged at the adjusting groove (116) of the plastic connecting outer pipe (12).

5. The new pipe fitting of claim 4, wherein: the U-shaped fixing piece (117) is made of flexible rubber.

6. The new pipe fitting according to claim 5, characterized in that: the cross section of the U-shaped fixing piece (117) is in a sawtooth shape.

7. The novel pipe fitting of claim 6, wherein: one end of the plastic connecting outer pipe (12) is connected to the fixed pipe (111), and the other end of the plastic connecting outer pipe is connected to the connecting pipe (112).