CN218582480U

CN218582480U - Composite PP pipe with weather-resistant functional layer

Info

Publication number: CN218582480U
Application number: CN202222443183.7U
Authority: CN
Inventors: 陈小锋; 黄尧舜; 张臣之; 徐志财; 李丁亮; 李光明; 李富城; 李振良
Original assignee: Guangdong Hengda Plastic Pipe Products Corp
Current assignee: Guangdong Hengda Plastic Pipe Products Corp
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-03-07
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to a composite PP pipe with a weather resistance functional layer, which belongs to the field of plastic pipelines and comprises a pipe body, wherein the surface of the pipe body is coated with a weather resistance coating layer; one end of the pipe body is expanded to form an insertion section, the inner diameter of the insertion section is 93% -98% of the outer diameter of the pipe body, a step wall is formed between the insertion section and the pipe body, and an annular groove is formed at the other end of the pipe body around the pipe body; the distance between the annular groove and the end of the pipe body far away from the insertion section is smaller than the length of the insertion section; still be provided with inside lining steel pole in the body, inside lining steel pole encircles the axis of body is set up in the pipe wall of body is heliciform. The utility model discloses can effectively increase the ageing resistance effect of PP pipe.

Description

Composite PP pipe with weather-resistant functional layer

Technical Field

The utility model relates to a plastic conduit field, in particular to compound PP pipe with weatherability functional layer.

Background

The PP pipe is a non-toxic, sanitary, high-temperature resistant and recyclable pipe type, has the characteristics of no corrosion, abrasion resistance, no scaling, frost cracking prevention and vibration and noise reduction, and is widely used, for example, applied to chemical plants, chemical industrial parks, building water supply and drainage, various manufacturing industries, sewage treatment and the like. However, the PP polypropylene is very sensitive to ultraviolet rays, and is very susceptible to automatic photo-oxidative degradation (aging) in a natural environment due to the influence of light and heat, so that the PP polypropylene is damaged and cannot be used. In addition, the weather-resistant coating is generally coated on the outer surface of the PP pipe, after the PP pipe is produced, the PP pipe is generally stored for one month or even several months before delivery, and if the PP pipe is stored in an outdoor environment, sunlight can irradiate into the PP pipe from two ends of the PP pipe, so that the PP pipe starts to age from the inside, and physical properties of the PP pipe are affected.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need for a composite PP pipe with a weather-resistant functional layer, which includes a pipe body, wherein the surface of the pipe body is coated with a weather-resistant coating layer; one end of the pipe body is in an expanded shape to form an insertion section, the inner diameter of the insertion section is 93% -98% of the outer diameter of the pipe body, a step wall is formed between the insertion section and the pipe body, and an annular groove is formed at the other end of the pipe body in a surrounding mode of the pipe body.

The utility model discloses in, through the surface cladding one deck weatherability coating at the body, can effectively block shining of sunshine to the body of PP material, thereby can effectively avoid its emergence ageing phenomenon under shining of sunshine, and simultaneously, the weatherability coating is for the weatherability coating, its thickness can be accomplished thickly more easily, preferably 3-6mm, and because the weatherability coating is the cladding of integral structure ground on the body, consequently, the weatherability coating can more firmly combine on the body, therefore, the structure of weatherability coating is more durable for the weatherability coating, firm, can play the guard action to the body of PP material for a long time, prolong its guard time to the body of PP material.

Additionally, the utility model discloses a setting of insertion section, when connecting multistage PP pipe, through the one end that does not have insertion section with the body insert the insertion section of another body in, can make things convenient for the hot melt between the PP pipe to connect, it need not to use other pipe connection structure, for example joint etc. can make things convenient for the construction and installation of PP pipe greatly.

In addition, in order to prevent that sunshine from shining the PP intraduct from the both ends of PP pipe, generally can use shading cloth to shelter from the both ends of PP pipe, its fixed method is for binding the surface of shading cloth tightly at the outside of PP pipe on the surface with the rope, wherein, the utility model discloses a PP pipe is because the existence of annular groove and ladder wall, through the rope system with fixed shading cloth in the recess and ladder wall department, can effectively prevent the rope system on PP pipe and go to outer slip on PP pipe, and then can prevent that shading cloth from being blown because of being strong wind, perhaps is driven the rope and slides outwards by other external force stimulations, and then can avoid shading cloth to drop from PP pipe and influence the shading effect of shading cloth.

Further, the distance between the annular groove and the end of the pipe body far away from the insertion section is smaller than the length of the insertion section.

Wherein, the distance between the tip of the one end of body at annular groove and its place is less than the length of insertion section, consequently, after inserting the insertion section with the one end that the body has annular groove, annular groove can be covered by the insertion section, consequently, through imbedding the sealing washer in annular groove, can make the sealing washer compress tightly in annular groove by the insertion section to can effectively strengthen the sealed effect of the junction of two sections PP pipes, and then improve the utility model discloses a pipeline connection structure's of PP pipe leakproofness can effectively reduce the probability that the phenomenon appears revealing after the PP pipe is installed.

Furthermore, a lining steel rod is further arranged in the pipe body and spirally arranged in the pipe wall of the pipe body around the axis of the pipe body.

Wherein, the inside lining steel pole of setting in the pipe wall of body can effectively strengthen the intensity of PP pipe, improve its compressive capacity, and then reduce the probability that the PP pipe received external force damage, improve its life, simultaneously, because inside lining steel pole is the heliciform and sets up in the pipe wall of body, therefore, when connecting two bodies, insert the section of inserting of another body with a body, carry out the hot melt and connect the back, the elasticity that inside lining steel pole warp the back and produce can make the pipe wall of two bodies receive continuous pressure, namely, in the cooling process after body hot melt is connected, the existence of inside lining steel pole can continuously provide certain pressure for two bodies, ensure that two bodies can closely bond together, and need not to use other pressure supply structure to provide pressure for the bonding of two bodies, can further make things convenient for the installation and construction of PP pipe.

Furthermore, the section of the lining steel rod is circular.

Wherein, the cross-section is circular shape inside lining steel pipe for the cross-section is square or other non-circular shape inside lining steel pole, and its intensity is better, can have the effect of reinforcing inside lining round steel to the intensity reinforcing of PP pipe, can also effectively reduce inside lining steel pole the cracked condition of appearance in the PP pipe use simultaneously.

Furthermore, one end, far away from the inserting section, of the inner side wall of the inserting section inclines outwards to form an inclined wall, and the diameter of a circular ring-shaped structure formed by the end, far away from the inserting section, of the inclined wall is larger than the outer diameter of the pipe body.

Wherein, make the diameter of the outside end of skew wall be greater than the external diameter of body, can conveniently insert the body that the external diameter is greater than the internal diameter of inserting the section into the inserting section.

Further, the weather-resistant coating layer is an ASA plastic coating layer.

The principle and effect of the present invention will be further explained below with reference to the above technical solutions and the accompanying drawings:

1. the utility model discloses in, through the surface cladding one deck weatherability coating at the body, can effectively block shining of sunshine to the body of PP material, thereby can effectively avoid its emergence ageing phenomenon under shining of sunshine, and simultaneously, the weatherability coating is for the weatherability coating, its thickness can be accomplished thickly more easily, preferably 3-6mm, and because the weatherability coating is the cladding of integral structure ground on the body, consequently, the weatherability coating can more firmly combine on the body, therefore, the structure of weatherability coating is more durable for the weatherability coating, firm, can play the guard action to the body of PP material for a long time, prolong its guard time to the body of PP material.

2. The utility model discloses a setting of insertion section, when connecting multistage PP pipe, during the one end that does not have the insertion section with the body inserts the insertion section of another body, can make things convenient for the hot melt between the PP pipe to connect, it need not to use other pipe connection structure, for example the joint etc. can make things convenient for the construction and installation of PP pipe greatly.

3. The utility model discloses a PP pipe is because the existence of annular groove and ladder wall, through the rope system with fixed shading cloth in the recess and ladder wall department, can effectively prevent the rope of system on PP pipe to go to outer slip on PP pipe, and then can prevent that shading cloth from being blown because of being blown by strong wind, perhaps is driven the rope by other external force pulling and slides outwards, and then can avoid shading cloth to drop from PP pipe and influence the shading effect of shading cloth.

Drawings

Fig. 1 is a schematic structural diagram of a composite PP pipe with a weather-resistant functional layer according to an embodiment of the present invention;

fig. 2 is a partial enlarged view of fig. 1:

fig. 3 is a schematic structural view illustrating the interconnection of the composite PP pipe with the weather-resistant functional layer according to the embodiment of the present invention;

fig. 4 is a partially enlarged view of fig. 3.

Description of reference numerals:

the method comprises the following steps of 1-a pipe body, 11-an insertion section, 111-an inclined wall, 12-a step wall, 13-an annular groove, 2-a lining steel pipe and 3-a weather-resistant coating layer.

Detailed Description

To facilitate understanding for those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and examples:

referring to fig. 1 to 4, a composite PP pipe with a weather-resistant functional layer comprises a pipe body 1, wherein a weather-resistant coating layer 3 is coated on the surface of the pipe body 1; one end of the pipe body 1 is expanded to form an insertion section 11, the inner diameter of the insertion section 11 is 93% -98% of the outer diameter of the pipe body 1, a step wall 12 is formed between the insertion section 11 and the pipe body 1, and an annular groove 13 is formed at the other end of the pipe body 1 around the pipe body 1.

The utility model discloses in, through surface cladding one deck weatherability coating 3 at body 1, can effectively block shining of sunshine to body 1 of PP material, thereby can effectively avoid its emergence ageing phenomenon under shining of sunshine, and simultaneously, weatherability coating 3 is for the weatherability coating, its thickness can accomplish thickly more easily, preferably 3-6mm, and because weatherability coating 3 is the cladding of integration structure ground on body 1, consequently, weatherability coating 3 can more firmly combine on body 1, therefore, the structure of weatherability coating 3 is more durable for the weatherability coating, firm, can play the guard action to body 1 of PP material for a long time, prolong its guard time to body 1 of PP material.

Additionally, the utility model discloses a setting of insertion section 11, when connecting multistage PP pipe, through not having the one end of insertion section 11 with body 1 and inserting the insertion section 11 of another body 1, can make things convenient for the hot melt between the PP pipe to connect, it need not to use other pipeline connection structure, for example the joint etc. can make things convenient for the construction and installation of PP pipe greatly.

In addition, in order to prevent sunshine from shining the PP intraduct from the both ends of PP pipe, generally can use shading cloth to shelter from the both ends of PP pipe, its fixed method is for tying up the surface of shading cloth at the outside of PP pipe with the rope on the surface, wherein, the utility model discloses a PP pipe is because the rope system of fixing shading cloth and stair wall 12 department in the recess and in, can effectively prevent the rope system on PP pipe and go outward to slide on PP pipe, and then can prevent that shading cloth from being blown because of being strong wind, perhaps drives the rope and outwards slides by other external force pulling, and then can avoid shading cloth to drop from PP pipe and influence the shading effect of shading cloth.

In one embodiment, the distance between the annular groove 13 and the end of the pipe body 1 remote from the insertion section 11 is smaller than the length of the insertion section 11.

In this embodiment, the distance between the tip of the one end of body 1 at annular groove 13 and its place is less than the length of insertion section 11, consequently, after inserting insertion section 11 with the one end that body 1 has annular groove 13, annular groove 13 can be covered by insertion section 11, consequently, through imbedding the sealing washer in annular groove 13, can make the sealing washer compress tightly in annular groove 13 by insertion section 11, thereby can effectively strengthen the sealed effect of the junction of two sections PP pipes, and then improve the utility model discloses a pipeline connection structure's of PP pipe leakproofness can effectively reduce the probability of the phenomenon of revealing after the PP pipe is installed.

In one embodiment, a lining steel rod is further arranged in the pipe body 1, and the lining steel rod is spirally arranged in the pipe wall of the pipe body 1 around the axis of the pipe body 1.

In this embodiment, the lining steel rod arranged in the pipe wall of the pipe body 1 can effectively enhance the strength of the PP pipe, improve the pressure resistance, and further reduce the probability that the PP pipe is damaged by external force, and prolong the service life of the PP pipe, meanwhile, because the lining steel rod is spirally arranged in the pipe wall of the pipe body 1, when the two pipe bodies 1 are connected, one pipe body 1 is inserted into the insertion section 11 of the other pipe body 1, after hot melting connection is performed, the pipe wall of the two pipe bodies 1 can be continuously pressed by the elastic force generated after the lining steel rod is deformed, that is, in the cooling process after the pipe body 1 is hot melted and connected, the existence of the lining steel rod can continuously provide certain pressure for the two pipe bodies 1, so that the two pipe bodies 1 can be tightly bonded together, and no additional pressure supply structure is needed to provide pressure for bonding of the two pipe bodies 1, thereby further facilitating the installation and construction of the PP pipe.

In one embodiment, the cross section of the lining steel rod is circular.

In this embodiment, the cross-section is circular shape inside lining steel pipe 2 for the cross-section is square or other non-circular shape inside lining steel pole, and its intensity is better, can have the effect of reinforcing inside lining round steel to the intensity reinforcing of PP pipe, can also effectively reduce inside lining steel pole the cracked condition of appearance in the PP pipe use simultaneously.

In one embodiment, one end of the inner side wall of the insertion section 11, which is away from the insertion section 11, is inclined outwards to form an inclined wall 111, and a diameter of a circular ring structure formed at an end of the inclined wall 111, which is away from the insertion section 11, is larger than an outer diameter of the pipe body 1.

In this embodiment, the diameter of the outer end of the inclined wall 111 is made larger than the outer diameter of the pipe body 1, so that the pipe body 1 having the outer diameter larger than the inner diameter of the insertion section 11 can be conveniently inserted into the insertion section 11.

In one embodiment, the weather-resistant coating 3 is an ASA plastic coating.

The above embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The composite PP pipe with the weather-resistant functional layer is characterized by comprising a pipe body, wherein a weather-resistant coating layer is coated on the surface of the pipe body; one end of the pipe body is in an expanded shape to form an insertion section, the inner diameter of the insertion section is 93% -98% of the outer diameter of the pipe body, a step wall is formed between the insertion section and the pipe body, and an annular groove is formed at the other end of the pipe body around the pipe body.

2. The composite PP tube with a weatherable functional layer according to claim 1, wherein a distance between the annular groove and an end of the tube body away from the insert section is less than a length of the insert section.

3. The composite PP tube with a weatherable functional layer according to claim 1 or 2, wherein a lining steel rod is further disposed in the tube body, and the lining steel rod is spirally disposed in the tube wall of the tube body around the axis of the tube body.

4. The composite PP pipe with a weatherable functional layer according to claim 3, wherein the cross section of the inner steel rod is circular.

5. The composite PP tube with a weatherable functional layer according to claim 3, wherein an end of the inner sidewall of the insertion section away from the insertion section is inclined outward to form an inclined wall, and a diameter of a circular ring structure formed by an end of the inclined wall away from the insertion section is larger than an outer diameter of the tube body.

6. The composite PP pipe with a weatherable functional layer according to claim 1 wherein the weatherable coating is an ASA plastic coating.