CN103411077A

CN103411077A - Plastic elbow

Info

Publication number: CN103411077A
Application number: CN2013103050135A
Authority: CN
Inventors: 莫校胜
Original assignee: HENAN LIANSU INDUSTRIAL Co Ltd
Current assignee: HENAN LIANSU INDUSTRIAL Co Ltd
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2013-11-27
Anticipated expiration: 2033-07-19
Also published as: CN103411077B

Abstract

The invention discloses a plastic elbow which is composed of an inner layer and an outer layer covering the surface of the inner layer. One side, in contact with the outer layer, of the inner layer is provided with a plurality of protruding parts and a plurality of grooves. The top ends of the protruding parts are in a hook shape so that the inner layer and the outer layer can be closely connected through the hook structure. By means of the design of the inner layer structure, the inner layer and the outer layer can be closely connected, and the inner layer cannot disengage in the process of conveying mixed solid and liquid objects. The inner layer of the elbow is made of abrasion resisting materials, the abrasion resistance of the elbow is improved, and the plastic elbow is combined with an abrasion resisting PE pipe to replace a ceramic steel tube to convey solid and liquid mixtures.

Description

A kind of plastic elbow

Technical field

The present invention relates to the pipe connecting part field, more specifically, relate to a kind of plastic elbow.

Background technique

The transmission solidliquid mixture is commonly used the steel pipe that pipeline has lined ceramics both at home and abroad at present, although this pipeline can meet the transmission of solidliquid mixture, but the cost of production of this pipeline and construction cost are higher, and the local normal appearance pottery of connection transition comes off, the steel pipe internal layer corrodes with the phenomenon of wearing and tearing very serious, the perforation phenomenon even appears, greatly reduce like this life-span of this pipeline, wear-resisting PE material has had further investigation, a lot of wear-resisting PE products also occur on the market, be expected to adopt this wear-resisting PE pipe belt for this steel pipe.The PE pipe belt needs to solve the pressurized problem of pipe pipe joint too for steel pipe.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of plastic elbow is provided, this plastic elbow can improve the wear-resisting property that pipeline connects transition position, and the overall work life-span of wear-resisting PE guard system is provided.

For solving the problems of the technologies described above, the technical solution used in the present invention is:

A kind of plastic elbow, described elbow is comprised of internal layer and the skin that is covered in the internal layer surface; Described internal layer is provided with some protuberances and some grooves with the outer side contacted, and the top of described protuberance is the hook-shaped internal layer that makes and closely is connected by this hook formation with outer.By this protuberance, can guarantee internal layer and outer closely link, can prevent from guaranteeing that internal and external layer can not come off in the process that mixing solid-liquid object is carried.

As a kind of preferred version, the number of described protuberance is more than two.

As a kind of preferred version, described protuberance is positioned at the middle part of internal layer and the outer side contacted.

As a kind of preferred version, described protuberance is distributed in internal layer and the outer side contacted equably.

As a kind of preferred version, the number of described protuberance is two, is symmetrically distributed on internal layer.

As a kind of preferred version, the number of described groove is two.

As a kind of preferred version, described groove is symmetrically distributed in the both sides of a certain protuberance.

As a kind of preferred version, the seamlessly transitting with the discontiguous side of skin of described internal layer, the internal diameter of described internal layer is identical with the diameter of tubing.The internal diameter of internal layer is identical with the diameter of tubing can be guaranteed can seamlessly transit between elbow tubing.

As a kind of preferred version, described skin is the common PE layer; Described internal layer is wear-resistant material layer.Described skin can be with reference to the design of conventional PE electric smelting key.Described skin is for bearing the normal pressure of pipe-line system.

As a kind of preferred version, described skin is the common PE layer; Described internal layer is wear-resisting PE layer.

Compared with prior art, the present invention has following beneficial effect:

The present invention, by the design to endothecium structure, makes can closely connect between internal and external layer, guarantees that internal layer can not break away from the process of mixing the conveying of solid-liquid object.The internal layer of described elbow adopts high-abrasive material, improves the wear resistance of elbow, and the use of its bonded wear-resistant PE pipe, can substitute the Ceramo-steel pipe be used to carrying solidliquid mixture.

The accompanying drawing explanation

Fig. 1 is the structural representation of embodiment's 1 described plastic elbow;

Fig. 2 is the schematic diagram of the described plastic elbow internal layer of embodiment 1 at the A-A face.

Fig. 3 is the schematic diagram of plastic elbow internal layer at the another kind of mode of execution of A-A face;

Fig. 4 is a kind of use phase diagram of embodiment's 1 described plastic elbow.

Embodiment

The present invention is further illustrated below in conjunction with embodiment.Wherein, accompanying drawing is only for exemplary illustration, expression be only schematic diagram, but not pictorial diagram can not be interpreted as the restriction to this patent; For embodiments of the invention are described better, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; For a person skilled in the art, in accompanying drawing some known configurations and explanation thereof may to omit be understandable.

The corresponding same or analogous parts of same or analogous label in the accompanying drawing of the embodiment of the present invention, in description of the invention, it will be appreciated that, if have term " on ", D score, " left side ", orientation or the position relationship of indications such as " right sides " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore in accompanying drawing, the term of position relationship is described only for exemplary illustration, can not be interpreted as the restriction to this patent, for the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.

Embodiment 1

As shown in Figure 1, described elbow is 45 ° of elbows to the described plastic elbow structure of the present embodiment.Described elbow is comprised of internal layer 1 and the skin 2 that is covered in the internal layer surface; Described internal layer is provided with a protuberance 3 with outer side contact, it can also be seen that internal layer is provided with the outer side contacted and two grooves 4 and groove 5 from Fig. 2, and the top of described protuberance 3 is the hook-shaped internal layer that makes and closely is connected by this hook formation with skin.By this protuberance, can guarantee internal layer and outer closely link, can prevent from guaranteeing that internal and external layer can not come off in the process that mixing solid-liquid object is carried.Described groove 4 and groove 5 are symmetrically distributed in the both sides of protuberance 3.Seamlessly transitting with the discontiguous side of skin of described internal layer, the internal diameter of described internal layer is identical with the diameter of tubing.

As shown in Figure 4, PE wear-resistant tubing 7 seamlessly transits with the internal layer of plastic elbow the use state of the described plastic elbow of the present embodiment.The preparation method of this product is, first internal layer is prepared by injection moulding, then be inserted in the middle of the core rod of 45 ° of elbows, and by winding machine, the covering thread that includes heating wire is wrapped in to the both sides of core rod, the production procedure of PE electric melting pipe fittings removes to inject product routinely, so just can make internal layer and skin link together and not come off.When with wear-resisting PE pipe welding procedure, the PE pipeline construction method of available routine and standard are welded and are got final product.

Fig. 3 provides the another kind of internal layer to implement possible structural drawing.This internal layer top is provided with a protuberance 3, also is provided with groove 4 and the groove 5 of the both sides that are symmetrically distributed in protuberance 3, also is provided with a protuberance 6 with the position of protuberance 3 symmetries; The top of described protuberance 3 and protuberance 6 is hook-shaped, and internal layer closely is connected by this hook formation with outer.

Obviously, the above embodiment of the present invention is only for example of the present invention clearly is described, and is not the restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in the protection domain of the claims in the present invention.

Claims

1. a plastic elbow, is characterized in that, described elbow is comprised of internal layer and the skin that is covered in the internal layer surface; Described internal layer is provided with some protuberances and some grooves with the outer side contacted, and the top of described protuberance is the hook-shaped internal layer that makes and closely is connected by this hook formation with outer.

2. plastic elbow according to claim 1, is characterized in that, the number of described protuberance is more than two.

3. plastic elbow according to claim 2, is characterized in that, described protuberance is positioned at the middle part of internal layer and the outer side contacted.

4. plastic elbow according to claim 2, is characterized in that, described protuberance is distributed in internal layer and the outer side contacted equably.

5. plastic elbow according to claim 1, is characterized in that, the number of described protuberance is two, is symmetrically distributed on internal layer.

6. plastic elbow according to claim 1, is characterized in that, the number of described groove is two.

7. plastic elbow according to claim 6, is characterized in that, described groove is symmetrically distributed in the both sides of a certain protuberance.

8. plastic elbow according to claim 1, is characterized in that, the seamlessly transitting with the discontiguous side of skin of described internal layer, and the internal diameter of described internal layer is identical with the diameter of tubing.

9. plastic elbow according to claim 1, is characterized in that, described skin is the common PE layer; Described internal layer is wear-resistant material layer.

10. plastic elbow according to claim 1, is characterized in that, described skin is the common PE layer; Described internal layer is wear-resisting PE layer.