CN210034787U - Sheath type heat preservation pipe fitting for water supply pipe - Google Patents

Abstract

The utility model discloses a sheath type heat preservation pipe fitting for a water supply pipe, which comprises a plastic bent pipe and an external control circuit, wherein the plastic bent pipe consists of an outer layer pipe, a middle heating layer and an inner layer pipe; the outer layer pipe is provided with a wiring port, the wiring port is embedded into the outer layer pipe, the inner end of the wiring port reaches the middle heating layer, the outer end of the wiring port is exposed on the surface of the outer layer pipe, the external control circuit is connected with the wiring port, and the middle heating layer is internally provided with a heating medium and a temperature sensor. The utility model discloses heat conduction, heat transfer, heat preservation are effectual, generate heat, heat transfer, heat preservation under the effect of external control circuit, the effectual real life of having solved, the water pipe frost crack problem of bringing when coming because of the severe cold. Simultaneously, when external control circuit electric quantity consumed up, can charge it, guarantee control circuit's normal operating, and the utility model has the characteristics of easy operation, convenient to use.

Description

Sheath type heat preservation pipe fitting for water supply pipe

Technical Field

The utility model relates to a sheath formula heat preservation pipe fitting for feed pipe belongs to plastic conduit's pipe fitting production technical field.

Background

In the real life, plastics feed pipe becomes the daily necessities that are essential in the family, can face the air temperature slump owing to the arrival in severe cold season when specifically using, and the water pipe that leads to bursts the problem, and the water pipe bursts lighter person and often can cut the water pipe part that splits, changes new water pipe, and the water pipe bursts the condition comparatively serious then need demolish to install again. However, under any circumstances, it is inevitable to bring great inconvenience to the life of people, and for this reason, a heat-insulating casing pipe member is needed, which generates heat, transfers heat and insulates heat under the action of an external power supply, so as to achieve the purpose of providing adjustable temperature control for key parts of the water pipe.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: aiming at the problems of sudden temperature drop and water pipe burst caused by severe cold seasons of the existing plastic water supply pipe, the sheath type heating pipe fitting has the characteristics of excellent heat conduction, heat transfer and heat preservation performance, adjustable temperature control, simple operation, convenient use and the like.

The utility model discloses a following technical scheme solves above-mentioned problem:

a sheath type heat preservation pipe fitting for a water supply pipe comprises a plastic bent pipe and an external control circuit, wherein the plastic bent pipe consists of an outer layer pipe, a middle heating layer and an inner layer pipe; the outer layer pipe is provided with a wiring port, the wiring port is embedded into the outer layer pipe, the inner end of the wiring port reaches the middle heating layer, the outer end of the wiring port is exposed on the surface of the outer layer pipe, the external control circuit is connected with the wiring port, and the middle heating layer is internally provided with a heating medium and a temperature sensor.

Wherein the heating medium is a low resistance wire.

Furthermore, the heating medium is coiled on the middle heating layer and forms a loop with an external control circuit through the wiring port.

Furthermore, the plastic bent pipe is bent into a cylinder shape at 90 degrees, the outer layer pipe is made of foamed heat-preservation plastic, and the inner layer pipe is made of a water supply plastic pipe.

Further, the wiring port is an add-in wiring port.

The utility model has the advantages that: the utility model discloses heat conduction, heat transfer, heat preservation are effectual, generate heat, heat transfer, heat preservation under the effect of external control circuit, the effectual real life of having solved, the water pipe frost crack problem of bringing when coming because of the severe cold. Simultaneously, when external control circuit electric quantity consumed up, can charge it, guarantee control circuit's normal operating, and the utility model has the characteristics of easy operation, convenient to use.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The labels in the figures are: 1-plastic bent pipe, 2-outer layer pipe, 3-middle heating layer, 4-inner layer pipe, 5-wiring port, 6-temperature sensor, 7-heating medium and 8-external control circuit.

Detailed Description

The present invention is further specifically described below by way of examples.

As shown in fig. 1, it can be seen that the plastic elbow 1 of the present invention is integrally a bent pipe structure in appearance, which is a 90 ° right angle bend, and has a water passing channel in the middle. The utility model discloses a composite pipe's tubular wall structure can be seen, and the pipe wall on water channel both sides all comprises three layer construction, and inlayer pipe 4, outer pipe 2 and the centre of pressing from both sides between the two generate heat layer 3 promptly.

Wherein, the outer layer pipe 2 is made of foaming heat preservation plastic, the inner layer pipe 4 is a water supply plastic pipe, and a low resistance wire as a heating medium 7 is arranged in the inner layer pipe. Under the condition that the temperature of the middle heating layer 3 exceeds 10 ℃, the temperature sensor 6 sets the value of the heating power of the heating low resistance wire to be lower than a given value through the external control circuit 8, so that the temperature of the heating medium 7 is reduced. The whole process can be controlled by the electronic intelligent temperature controller and the pressure regulating device, and the electronic intelligent temperature controller and the pressure regulating device are all existing products. When the external control circuit 8 is used up, the external control circuit can be charged, and the normal operation of the control circuit is ensured.

The utility model discloses a 1 pipe fitting of this kind of plastics return bend divide into two injection moulding, is earlier by the injection molding machine with Polyethylene (PE) heating plastify become molten state thermoplasticity fuse-element, forms the PE inlayer pipe through the molten state thermoplasticity that the mould will get into, obtains prefabricated pipe fitting. Then, a low resistance wire and a temperature sensor 6 which are used as heating media 7 are embedded on the outer circumferential surface of the inner-layer tube 4, the inner-layer tube 4 is placed in a mould, a middle heating layer 3 is formed on the outer surface of the inner-layer tube 4 after a secondary injection molding process is carried out, the heating media 7 and the temperature sensor 6 are embedded in the middle heating layer 3, finally, an outer-layer tube 2 made of foaming thermal insulation materials obtained through injection molding is evenly coated outside the tube, and then the outer-layer tube is molded into an integral composite tube through processes of vacuum sizing cooling and the like. Although the middle heating layer 3 is a cavity when viewed from fig. 1, the figure only shows the position of the middle heating layer 3, not the size, and the size of the middle heating layer 3 is far narrower than that shown in fig. 1, in fact, the middle heating layer 3 is not hollow and is formed by a plastic embedded sensor and a resistance wire with heat conduction characteristics.

Of course, the above is only the specific application example of the present invention, and the present invention has other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope claimed by the present invention.

Claims (5)

1. The utility model provides a sheath formula heat preservation pipe fitting for feed pipe which characterized in that: the plastic elbow comprises a plastic elbow (1) and an external control circuit (8), wherein the plastic elbow (1) consists of an outer layer pipe (2), a middle heating layer (3) and an inner layer pipe (4); be equipped with wiring port (5) on outer pipe (2), wiring port (5) embedding is on outer pipe (2), wiring port (5) inner reaches middle layer (3) and the outer end of generating heat and reveals outer pipe (2) surface, external control circuit (8) link to each other with wiring port (5), be equipped with heating medium (7) and temperature sensor (6) in middle layer (3) of generating heat.

2. The insulated pipe sheath for a water supply pipe according to claim 1, wherein: the heating medium (7) is a low resistance wire.

3. The insulated pipe sheath for a water supply pipe according to claim 2, wherein: the heating medium (7) is coiled on the middle heating layer (3) and forms a loop with the external control circuit (8) through the wiring port (5).

4. The insulated pipe sheath for a water supply pipe according to claim 1, wherein: the plastic elbow (1) is bent into a cylinder shape at 90 degrees, the outer layer pipe (2) is made of foamed heat-preservation plastic, and the inner layer pipe (4) is a water supply plastic pipe.

5. The insulated pipe sheath for a water supply pipe according to claim 1, wherein: the wiring port (5) is an interpolation type wiring port.

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