CN215215112U

CN215215112U - PPR pipe fitting with surface not prone to yellowing

Info

Publication number: CN215215112U
Application number: CN202121609004.1U
Authority: CN
Inventors: 范光华; 俞冬; 卢磊
Original assignee: Jiangsu Ruijie Plastic Pipe Fittings Co ltd
Current assignee: Jiangsu Ruijie Plastic Pipe Fittings Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2021-12-17
Anticipated expiration: 2031-07-15

Abstract

The utility model discloses a PPR pipe fitting with a surface which is not easy to yellow, relating to the technical field of plastic pipes, which comprises a first pipe body and a pipe sleeve which is sleeved on the outer surface of a base material pipe in a sliding way, wherein the first pipe body comprises a PPR base material pipe, and the outer peripheral surface of the PPR base material pipe is provided with at least one bulge part along the axial direction; the pipe sleeve comprises a sleeve body, and the inner wall of the sleeve body and the bulge part are correspondingly provided with a notch; wherein, when the pipe box cover was established at first body surface, and the bellying is inlayed in the opening groove, and the prestressing force hole has been seted up along axial direction on the body, and the prestressing force hole is the circumference permutation and distributes, and the inside packing in prestressing force hole has the strip of flexible material, and the material of strip is rubber, and when the deformation takes place for the cover body, the inner wall in prestressing force hole extrudees the strip for the strip takes place deformation, and then cushions the impact force, and PPR base member pipe includes PPR layer and oxygen barrier layer from outside to inside in proper order, and the material on oxygen barrier layer is EVOH, compares in prior art, the utility model provides a PPR pipe fitting is not fragile, and is difficult for becoming yellow, and is comparatively pleasing to the eye.

Description

PPR pipe fitting with surface not prone to yellowing

Technical Field

The utility model relates to a plastic conduit technical field especially involves a PPR pipe fitting that surface is difficult for becoming yellow.

Background

Compared with the traditional cast iron pipe, galvanized steel pipe, cement pipe and other pipelines, the PPR pipe has the advantages of energy conservation, material saving, environmental protection, light weight, high strength, corrosion resistance, smooth inner wall, no scale formation, simple and convenient construction and maintenance, long service life and the like, is widely applied to the construction industry, municipal administration, industry and agricultural field such as building water supply and drainage, urban and rural water supply and drainage, urban gas, electric power and optical cable sheaths, industrial fluid delivery, agricultural irrigation and the like, but is easy to be damaged by external force in the long-term use process, is troublesome to maintain, and is easy to turn yellow after the surface is used for a long time, thereby affecting the beauty

Therefore, the utility model discloses a PPR pipe fitting that surface is difficult for becoming yellow compares in prior art, the utility model provides a PPR pipe fitting is not fragile, and is difficult for becoming yellow, comparatively pleasing to the eye.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's is not enough, provides a surface is difficult for the PPR pipe fitting that yellows, compares in prior art, the utility model provides a PPR pipe fitting is not fragile, and is difficult for the yellows, comparatively pleasing to the eye.

The utility model discloses a realize through following technical scheme: a PPR pipe fitting with a surface not prone to yellowing structurally comprises a first pipe body and a pipe sleeve, wherein the pipe sleeve is sleeved on the outer surface of a base material pipe in a sliding mode, the first pipe body comprises a PPR base material pipe, and at least one protruding portion is arranged on the outer peripheral surface of the PPR base material pipe in the axial direction; the pipe sleeve comprises a sleeve body, and the inner wall of the sleeve body and the bulge part are correspondingly provided with a notch; when the pipe sleeve is sleeved on the surface of the first pipe body, the bulge part is embedded in the notch.

Based on the structure, the utility model discloses well pipe box protects first body, prevents that first body from damaging, when the pipe box damages, can cut the pipe box that damages the position, makes again to slide between first body and the pipe box, installs the replacement to the pipe box from the tip of first body, and wherein, the bellying makes the removal between first body and the pipe box stable with the setting of opening the groove, through the setting of pipe box for first body is not fragile, just the utility model discloses wholly be convenient for the maintenance.

Preferably, in order to enhance the hardness degree of the sleeve body, the sleeve body is provided with a plurality of prestressed holes along the axial direction, the prestressed holes are distributed in a circumferential array, and the prestressed holes have the function of resisting impact pressure and improve the overall toughness and pressure resistance of the sleeve body.

Preferably, in order to further improve the pressure resistance of the pipe sleeve, the strip made of a flexible material is filled in the prestress hole, the strip is made of rubber, and when the sleeve body deforms, the strip is extruded by the inner wall of the prestress hole, so that the strip deforms and further the impact force is buffered.

Preferably, the PPR base member pipe includes PPR layer and oxygen barrier layer from outside to inside in proper order, and the material of oxygen barrier layer is EVOH, through the setting of outer oxygen barrier layer, can make the difficult reaction that takes place with the oxygen contact of PPR layer, and then the difficult phenomenon that takes place to turn yellow.

The utility model discloses a PPR pipe fitting that surface is difficult for becoming yellow compares with prior art:

the utility model discloses well pipe box protects first body, prevents that first body from damaging, when the pipe box damages, can cut the pipe box that damages the position, makes again and slides between first body and the pipe box, installs the replacement to the pipe box from the tip of first body, wherein, the bellying makes the removal between first body and the pipe box stable with the setting of opening the groove, through the setting of pipe box for first body is not fragile, just the utility model discloses wholly be convenient for maintain, PPR base member pipe includes PPR layer and oxygen barrier layer from outside to inside in proper order, and the material on oxygen barrier layer is EVOH, through the setting on outer oxygen barrier layer, can make the PPR layer be difficult for reacting with the oxygen contact, and then the difficult phenomenon that takes place the yellowness.

Drawings

Fig. 1 is a schematic structural view of a PPR pipe fitting of the present invention;

FIG. 2 is a schematic structural view of a first pipe of the present invention;

fig. 3 is a schematic structural view of the middle pipe sleeve of the present invention;

fig. 4 is a schematic structural view of the PPR base pipe of the present invention.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

As shown in fig. 1 to 3, the utility model discloses a PPR pipe fitting with a surface that is not easy to yellow, which structurally comprises a first pipe body 1 and a pipe sleeve 2 that is sleeved on the outer surface of a base material pipe in a sliding way, wherein the first pipe body 1 comprises a PPR base body pipe 11, and at least one protruding part 12 is arranged on the outer peripheral surface of the PPR base body pipe 11 along the axial direction; the pipe sleeve 2 comprises a sleeve body 21, and the inner wall of the sleeve body 21 is provided with a notch 22 corresponding to the bulge 12; when the pipe sleeve 2 is sleeved on the surface of the first pipe body 1, the convex part 12 is embedded in the notch 22.

Based on the structure, the utility model discloses well pipe box 2 protects first body 1, prevents that first body 1 from damaging, when pipe box 2 damages, can cut the pipe box 2 that damages the position, makes again and slides between first body 1 and the pipe box 2, installs the replacement to pipe box 2 from the tip of first body 1, and wherein, bellying 12 makes the removal between first body 1 and the pipe box 2 stable with the setting of opening groove 22, through the setting of pipe box 2, makes first body not fragile 1, just the utility model discloses the maintenance of wholly being convenient for.

As shown in fig. 2, in order to enhance the hardness of the sleeve body 21, a plurality of prestressed holes 23 are formed in the sleeve body 21 along the axial direction, the prestressed holes 23 are distributed in a circumferential array, and the prestressed holes 23 have the function of resisting impact pressure, thereby improving the toughness and the pressure resistance of the whole sleeve body 2.

Wherein, in order to further improve the compressive property of pipe box 2, the inside of prestressing force hole 23 is filled with the strip 24 of flexible material, and the material of strip 24 is rubber, and when the cover body 21 takes place deformation, the inner wall of prestressing force hole 23 extrudes strip 24 for the strip takes place deformation, and then cushions the impact force.

As shown in fig. 4, in order to prevent the PPR base pipe 11 from yellowing easily, the PPR base pipe 11 sequentially includes a PPR layer 111 and an oxygen barrier layer 112 from outside to inside, the oxygen barrier layer 112 is made of EVOH, and the PPR layer 111 is not likely to react with oxygen due to contact with the oxygen through the arrangement of the outer oxygen barrier layer 112, and further, yellowing is not likely to occur.

To sum up, compare in prior art, the utility model provides a PPR pipe fitting is not fragile, and is difficult for becoming yellow, comparatively pleasing to the eye.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Claims

1. The PPR pipe fitting with the surface not prone to yellowing is characterized by comprising a first pipe body (1) and a pipe sleeve (2) which is sleeved on the outer surface of a base material pipe in a sliding mode, wherein the first pipe body (1) comprises a PPR base body pipe (11), and at least one protruding portion (12) is arranged on the outer peripheral surface of the PPR base body pipe (11) in the axial direction;

the pipe sleeve (2) comprises a sleeve body (21), and the inner wall of the sleeve body (21) is provided with a notch (22) corresponding to the lug boss (12);

when the pipe sleeve (2) is sleeved on the surface of the first pipe body (1), the protruding part (12) is embedded in the notch (22).

2. The PPR pipe with the surface which is not easy to yellow as claimed in claim 1, wherein said sleeve body (21) is provided with a plurality of pre-stressed holes (23) along the axial direction, said pre-stressed holes (23) are distributed in circumferential alignment.

3. The PPR pipe with less yellowing surface according to claim 2, wherein the prestressed holes (23) are filled with strips (24) of flexible material.

4. The PPR pipe with less yellowing surface according to claim 3, wherein the strip (24) is made of rubber.

5. The PPR pipe with less yellowing surface according to claim 4, wherein said PPR base pipe (11) comprises a PPR layer (111) and an oxygen barrier layer (112) in sequence from outside to inside.

6. The PPR pipe with less yellowing surface according to claim 5, wherein the oxygen barrier layer (112) is made of EVOH.