CN213333010U

CN213333010U - Elbow structure for connecting plastic-coated metal pipe

Info

Publication number: CN213333010U
Application number: CN202022155888.XU
Authority: CN
Inventors: 姜沈
Original assignee: Hangzhou Hangyi Technology Co ltd
Current assignee: Hangzhou Hangyi Technology Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-06-01
Anticipated expiration: 2030-09-27

Abstract

The utility model belongs to the technical field of the pipe connection, concretely relates to an elbow structure for connecting cover and mould tubular metal resonator, cover the flaring nut of moulding the tubular metal resonator including the elbow with being used for connecting, the A end of elbow sets up first connection end, flaring nut screw-thread fit is in first connection end, first connection end inner wall lower extreme sets up the outer conical surface, the flaring nut lower extreme sets up the interior conical surface that corresponds with the outer conical surface, the outer conical surface will cover and mould the exposed tubular metal resonator of tubular metal resonator lower extreme and expand outward to compress tightly through the interior conical surface, realize covering the connection of moulding the tubular metal resonator. The utility model relates to a rationally, simple structure, the outer cone through the elbow expands outward in the face of exerted tubular metal resonator to the internal cone face through the flaring nut compresses tightly, can realize covering the zonulae occludens of moulding the tubular metal resonator, easy operation, and is practical reliable.

Description

Elbow structure for connecting plastic-coated metal pipe

Technical Field

The utility model belongs to the technical field of the pipe connection, concretely relates to an elbow structure for connecting cover and mould tubular metal resonator.

Background

The plastic-coated metal pipe is widely applied to the connection of water pressure, steam pressure, oil pressure and other pipelines, and has better performance compared with the traditional metal pipe, but the traditional plastic-coated metal pipe is difficult to connect due to the fact that a layer of plastic is arranged on the surface of the traditional plastic-coated metal pipe. And traditional pipeline connection effect is not good enough again to the water pipe installation is taken as the example, and traditional plastic-coated metal pipe connection adopts hot melt or chemical glue to connect, has certain technical requirement to the constructor, and hot melt or chemical glue's connection stability is relatively poor moreover, produces the condition of infiltration and water leakage easily, is difficult to the inspection leak source, inconvenient maintenance.

SUMMERY OF THE UTILITY MODEL

In order to make up the deficiency of the prior art, the utility model provides an elbow structure technical scheme for connecting cover and mould tubular metal resonator.

The elbow structure for connecting the plastic-coated metal pipe is characterized by comprising an elbow and a flaring nut used for connecting the plastic-coated metal pipe, wherein a first connecting end is arranged at the end A of the elbow, the flaring nut is in threaded fit in the first connecting end, an outer conical surface is arranged at the lower end of the inner wall of the first connecting end, an inner conical surface corresponding to the outer conical surface is arranged at the lower end of the flaring nut, the outer conical surface expands the metal pipe with the lower end of the plastic-coated metal pipe exposed outwards and compresses tightly through the inner conical surface, and the connection of the plastic-coated metal pipe is realized.

The elbow structure for connecting the plastic-coated metal pipe is characterized in that the lower end of the inner wall of the first connecting end of the elbow protrudes upwards to form an outer conical surface, and the lower end of the flaring nut is recessed inwards to form an inner conical surface matched with the outer conical surface.

The elbow structure for connecting the plastic-coated metal pipe is characterized in that a second connecting end head for being in threaded connection with an external part is arranged at the B end of the elbow.

The elbow structure for connecting the plastic-coated metal pipe is characterized in that the external connecting piece is a faucet, a valve or a liquid or gaseous controller.

The elbow structure for connecting the plastic-coated metal pipe is characterized in that a stepped hole with a large upper part and a small lower part is formed in the flared nut, an internal thread used for being occluded with the surface of the plastic-coated metal pipe is arranged at the upper part of the stepped hole, and an internal conical surface is arranged at the lower end of the lower part of the stepped hole.

Compared with the prior art, the utility model relates to a rationally, simple structure, the outer cone through the elbow expands outward in the face of exerted tubular metal resonator to the internal cone face through the flaring nut compresses tightly, can realize covering the zonulae occludens of moulding the tubular metal resonator, easy operation, and is practical reliable.

Drawings

Fig. 1 is a schematic structural view of a usage state of a faucet connecting module to which the present invention is applied;

fig. 2 is a schematic structural view of a faucet connecting module to which the present invention is applied;

fig. 3 is a schematic view of an exploded structure of a faucet connecting module according to the present invention;

fig. 4 is a schematic structural view of the plastic-coated metal pipe of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in the figures, an elbow structure for connecting a plastic-coated metal pipe is applied to an exemplary faucet connecting module, which includes a bottom box 2 pre-embedded in a wall 1, an elbow 3 disposed in the bottom box 2, a flared nut 5 for connecting the plastic-coated metal pipe 4, a mounting base plate 6 disposed on the bottom box 2, and an external component 7 disposed outside the mounting base plate 6, wherein an end a of the elbow 3 is provided with a first connecting end 300, the end a is a water inlet end, the flared nut 5 is screwed into the first connecting end 300, the lower end of the inner wall of the first connecting end 300 is provided with an outer conical surface 301, the lower end of the flared nut 5 is provided with an inner conical surface 500 corresponding to the outer conical surface 301, the outer conical surface 301 expands the exposed metal pipe at the lower end of the plastic-coated metal pipe 4, and compresses tightly through the inner conical surface 500, thereby realizing the connection of the plastic-coated metal pipe 4.

As an optimization: the elbow 3 and the installation bottom plate 6 are detachably fixed and then arranged in the bottom box 2, and the installation bottom plate 6 and the bottom box 2 are detachably matched. Specifically, the bottom box 2 is fixed to the mounting base plate 6 through bolts, and the bottom box 2 is used for positioning and protecting the elbow 3 and the flaring nut 5.

As an optimization: the outer side of the mounting bottom plate 6 is provided with a decorative panel 8, and the decorative panel 8 plays a decorative role.

As an optimization: the inner end of the first connecting end 300 of the elbow 3 protrudes upwards to form an outer conical surface 301, and the lower end of the flared nut 5 is recessed inwards to form an inner conical surface 500 matched with the outer conical surface 301. The end B of the elbow 3 is provided with a second connecting end 302, the second connecting end 302 is in threaded connection with the external piece 7, and the end B is a water outlet end. The inner walls of the first 300 and second 301 connection ends of the elbow 3 are provided with internal threads for screw-fitting.

As an optimization: the outer wall of the lower end of the flared nut 5 is provided with external threads, a stepped hole 501 with a large top and a small bottom is formed in the flared nut 5, the upper portion of the stepped hole 501 is provided with internal threads, and the inner conical surface 500 is arranged at the lower end of the lower portion of the stepped hole 501.

As an optimization: the mounting base plate 6 is detachably matched with the elbow 3. Specifically, the end face of the second connecting end 302 of the elbow 3 is provided with an end face flange, and the end face flange is fixed with the mounting base plate 6 through bolts.

As an optimization: the external connector 7 is a water tap, a valve or a liquid or gas controller. Specifically, the joint of the external member 7 is inserted into the second connecting end 302 of the elbow 3 through the preset hole of the decorative panel 8 and the mounting base plate 6 and is in threaded fit with the second connecting end.

The utility model provides a when elbow 3 and flaring nut 5 use, flaring nut 5 moulds 4 spiro unions of tubular metal resonator with covering, the internal thread of flaring nut 5 moulds the epidermis interlock with covering of moulding tubular metal resonator 4, reach the purpose of connecting, cover the lower extreme tubular metal resonator of moulding tubular metal resonator 4 and expose, then carry out the flaring through the outer conical surface 301 of first connection end 300 to this part tubular metal resonator, and twist flaring nut 5 into the first connection end 300 of elbow 3, make the tubular metal resonator compress tightly between the inner conical surface 500 of flaring nut 5 and the outer conical surface 301 of elbow 3 by the part of flaring, reach sealed purpose.

The utility model discloses when the installation, earlier cover and mould tubular metal resonator 4 and end box 2 and preassemble in wall body 1, connect through elbow 3 and flaring nut 5 and cover and mould tubular metal resonator 4, then on fixing elbow 3 to mounting plate 6, mounting plate 6 again with end box 2 installation, cover decorative panel 8 at last, the internal thread that end 302 was connected to the second can be connected with tap or valve.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides an elbow structure for connecting cover and mould tubular metal resonator, its characterized in that includes elbow (3) and is used for connecting flaring nut (5) of covering and moulding tubular metal resonator (4), the A end of elbow (3) sets up first connection end (300), flaring nut (5) screw-thread fit is in first connection end (300), first connection end (300) inner wall lower extreme sets up outer conical surface (301), flaring nut (5) lower extreme sets up interior conical surface (500) that correspond with outer conical surface (301), outer conical surface (301) will cover and mould the exposed tubular metal resonator of tubular metal resonator (4) lower extreme and expand outward, and compress tightly through interior conical surface (500), realize covering the connection of moulding tubular metal resonator (4).

2. The elbow structure for connecting a plastic-coated metal pipe as claimed in claim 1, wherein the lower end of the inner wall of the first connecting end (300) of the elbow (3) is protruded upward to form an outer conical surface (301), and the lower end of the flared nut (5) is recessed to form an inner conical surface (500) which is engaged with the outer conical surface (301).

3. Elbow construction for connecting plastic-coated metal pipes according to claim 1, characterised in that the B-end of the elbow (3) is provided with a second connection end (302) for a threaded connection with an external part (7).

4. Elbow construction for connecting plastic-coated metal pipes according to claim 3, characterised in that the external connection (7) is a tap, a valve or a liquid, gas controller.

5. Elbow construction for connecting plastic-coated metal pipes according to any of claims 1-4, characterised in that the flared nut (5) has a stepped hole (501) with a large top and a small bottom, the upper part of the stepped hole (501) being provided with an internal thread for engaging with the skin of the plastic-coated metal pipe (4).