CN214412145U - Dampproofing MPP bellows of resistance to compression - Google Patents

Abstract

The utility model discloses a dampproofing MPP bellows of resistance to compression, including the MPP bellows, the MPP bellows includes MPP basic unit, phenolic resin lacquer layer, steel tape layer, polyphenylene sulfide layer, plastic-aluminum composite bed and dampproof course. This dampproofing MPP bellows of resistance to compression, the setting on accessible phenol-formaldehyde resin lacquer layer, the hardness of increase MPP bellows inner wall, can play water-fast simultaneously, the characteristic of resistant chemical attack, and through the setting on band layer and polyphenylene sulfide layer, increase the intensity of MPP bellows, and then promote its compressive property, through the setting that waterproof ventilated membrane and super-hydrophobic are filmed, can play the water-proof effects to MPP bellows outer wall, and avoidable water droplet is detained, make the unable internal infiltration of water droplet, and then play the dampproofing effect, when the bolt is down revolved and wedge inslot wall wedge face supports tightly, can play the tightening action to the connection of MPP bellows, and shelter from MPP bellows junction, further avoid the steam infiltration, can play the fastening action to the junction simultaneously, promote connection stability.

Description

Dampproofing MPP bellows of resistance to compression

Technical Field

The utility model relates to a MPP bellows technical field specifically is a dampproofing MPP bellows of resistance to compression.

Background

The MPP pipe is also called MPP power cable protection pipe and is divided into an excavation type and a non-excavation type, the MPP non-excavation pipe is called MPP jacking pipe or a dragging pipe, the MPP pipe adopts modified polypropylene as main raw materials, has the characteristics of high temperature resistance and external pressure resistance, and is suitable for medium and low voltage transmission line cable calandria pipes below 10 KV.

MPP bellows among the prior art is when using, its hardness is relatively poor, and then lead to its compressive property low, simultaneously and the inner wall does not have water-fast, the characteristic of resistant chemical attack, simultaneously can not play water-proof effects to MPP bellows outer wall, lead to the water droplet to be detained easily, and then make the water droplet endosmosis, can't shelter from its junction when MPP bellows connects simultaneously, lead to steam to permeate easily, can not play the fastening effect to the junction simultaneously, lead to connection stability poor, MPP bellows junction easily breaks away from.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dampproofing MPP bellows of resistance to compression to solve the MPP bellows among the prior art that proposes in the above-mentioned background art when using, its hardness itself is relatively poor, and then leads to its compressive property low, and the inner wall does not have water-fast, resistant chemical corrosion's characteristic simultaneously, can not play the water-proof effects to MPP bellows outer wall simultaneously, leads to the water droplet to be detained easily, and then makes the problem that the water droplet oozes in.

In order to achieve the above object, the utility model provides a following technical scheme: the compression-resistant moisture-proof MPP corrugated pipe comprises an MPP corrugated pipe body, wherein the MPP corrugated pipe body comprises an MPP base layer, a phenolic resin paint layer, a steel tape layer, a polyphenylene sulfide layer, an aluminum-plastic composite layer and a moisture-proof layer;

the MPP base course inner wall has scribbled the phenolic resin lacquer layer, the MPP base course outer wall parcel has the steel tape layer, the outer wall parcel on steel tape layer has the polyphenylene sulfide layer, the outer wall parcel on polyphenylene sulfide layer has the plastic-aluminum composite bed, the outer wall of plastic-aluminum composite bed has scribbled the dampproof course. The design can promote resistance to compression, the humidity resistance of MPP bellows like this.

Preferably, an annular protrusion is processed at one end of the MPP corrugated pipe, and an annular groove is processed at the other side of the MPP corrugated pipe. Design like this can form the joint structure when making annular protrusion embedding annular groove, and then play the effect of pre-fixing when the MPP bellows is connected.

Preferably, embedded grooves are processed at the two ends of the MPP corrugated pipe, a sealing ring is arranged on one side, close to the annular bulge, of the MPP corrugated pipe, and the sealing ring is fixedly connected in the embedded grooves on the same side. The sealing washer can play sealed effect to its junction when connecting to the MPP bellows.

Preferably, the moisture-proof layer comprises a waterproof breathable film and a super-hydrophobic coating film;

the waterproof breathable film is coated on the outer wall of the aluminum-plastic composite layer, and a super-hydrophobic coating is coated on the outer side of the waterproof breathable film. Design like this can play water-proof effects to MPP bellows outer wall, and inevitable water droplet is detained for the unable internal infiltration of water droplet, and then play dampproofing effect.

Preferably, two ends of the MPP corrugated pipe are provided with connecting mechanisms;

the connecting mechanism comprises a lantern ring, a bolt and a wedge groove;

the utility model discloses a wedge groove, including the MPP bellows, the inner wall of the lantern ring is connected with the outer wall that is close to annular bulge one side, the equal threaded connection in upper and lower both sides of the lantern ring has the bolt, the inner of bolt inlays the inside of locating the wedge groove, the wedge groove processing is on the outer wall that the MPP bellows is close to annular groove one side. Design like this can shelter from its junction when the MPP bellows is connected, further avoids steam infiltration, can play the fastening to the junction simultaneously, promotes connection stability.

Compared with the prior art, the beneficial effects of the utility model are that: this dampproofing MPP bellows of resistance to compression, compared with traditional technique, have following advantage:

through the cooperation between the MPP corrugated pipe, the MPP basic unit, the phenolic resin lacquer layer, the steel tape layer, the polyphenylene sulfide layer, the aluminum-plastic composite layer and the dampproof course, make this MPP corrugated pipe when using, the setting of accessible phenolic resin lacquer layer, increase the hardness of MPP corrugated pipe inner wall, can play water-fast, the characteristic of chemical resistance simultaneously, and through the setting of steel tape layer and polyphenylene sulfide layer, increase the intensity of MPP corrugated pipe, and then promote its compressive property, and still have high temperature resistant, chemical resistance, difficult combustion, thermal stability is good, advantages such as electrical property is good;

simultaneously, through the setting that waterproof ventilated membrane and super hydrophobic were filmed, can play water-proof effects to MPP bellows outer wall, and inevitable water droplet is detained for the unable internal infiltration of water droplet, and then play dampproofing.

Through the MPP bellows, the annular is protruding, the annular groove, cooperation between inner caulking groove and the coupling mechanism, make this MPP bellows when using, accessible lantern ring is to sheltering from of MPP bellows junction, and the setting of bolt and wedge groove, when the bolt is down revolved and is supported tightly with wedge inslot inner wall scarf, can play the effect of tightening up to the connection of MPP bellows, and shelter from MPP bellows junction, further avoid steam infiltration, can play the fastening to the junction simultaneously, promote connection stability.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection state structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

FIG. 4 is a schematic structural view of the MPP base layer, the phenolic varnish layer and the steel belt layer in FIG. 3;

fig. 5 is a schematic structural view of the collar, bolt and wedge groove of fig. 3.

In the figure: 1. MPP bellows, 101, MPP basic unit, 102, phenolic resin lacquer layer, 103, steel tape layer, 104, polyphenylene sulfide layer, 105, plastic-aluminum composite layer, 106, dampproof course, 1061, waterproof ventilated membrane, 1062, super hydrophobic coating, 2, sealing washer, 3, annular arch, 4, annular groove, 5, embedded groove, 6, coupling mechanism, 601, lantern ring, 602, bolt, 603, wedge groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a dampproofing MPP bellows of resistance to compression, including MPP bellows 1, MPP bellows 1's one end processing has annular bulge 3, MPP bellows 1's opposite side processing has annular groove 4, the design can be so that annular bulge 3 imbeds during annular groove 4, can form the joint structure, and then play the effect of pre-fixing when MPP bellows 1 connects, MPP bellows 1's both ends are all processed and are had embedded groove 5, one side that MPP bellows 1 is close to annular bulge 3 is equipped with sealing washer 2, 2 rigid couplings of sealing washer are in embedded groove 5 of homonymy, sealing washer 2 can play the sealing effect to its junction when connecting MPP bellows 1.

The MPP corrugated pipe 1 comprises an MPP base layer 101, a phenolic resin paint layer 102, a steel tape layer 103, a polyphenylene sulfide layer 104, an aluminum-plastic composite layer 105 and a moisture-proof layer 106, the inner wall of the MPP base layer 101 is coated with the phenolic resin paint layer 102, the phenolic resin paint layer 102 has the characteristics of high hardness, water resistance and chemical corrosion resistance, the outer wall of the MPP base layer 101 is coated with the steel tape layer 103, the steel tape layer 103 has better rigidity, the pressure resistance of the MPP corrugated pipe 1 can be further increased, the outer wall of the steel tape layer 103 is coated with the polyphenylene sulfide layer 104, the polyphenylene sulfide layer 104 has the advantages of high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability, excellent electrical property and the like, the pressure resistance of the MPP corrugated pipe 1 is further increased, the outer wall of the polyphenylene sulfide layer 104 is coated with the aluminum-plastic composite layer 105, the aluminum-plastic composite layer 105 has better shielding property, the outer wall of the aluminum-plastic composite layer 105 is coated with the moisture-proof layer 106, design like this can promote MPP bellows 1's resistance to compression, moisture resistance, dampproof course 106 includes waterproof ventilated membrane 1061 and super-hydrophobic coating 1062, waterproof ventilated membrane 1061 paints in the outer wall of aluminum-plastic composite layer 105, waterproof ventilated membrane 1061 can play the water-proof effects to MPP bellows 1's outer wall, waterproof ventilated membrane 1061's outside is paintd super-hydrophobic coating 1062, super-hydrophobic coating 1062 is made for PTFE, better hydrophobicity has, the design can play the water-proof effects to MPP bellows 1 outer wall like this, and the inevitable water droplet is detained, make the unable introgression of water droplet, and then play the dampproofing effect.

Both ends of MPP bellows 1 all are equipped with coupling mechanism 6, coupling mechanism 6 includes lantern ring 601, bolt 602 and wedge groove 603, the inner wall one side of lantern ring 601 cup joints and is fixed in MPP bellows 1 and is close to on the outer wall of annular protrusion 3 one side, the equal threaded connection in upper and lower both sides of lantern ring 601 has bolt 602, the inner of bolt 602 inlays the inside of locating wedge groove 603, when bolt 603 revolves down and supports tightly with wedge groove 603 inner wall wedge surface, can play the effect of tightening up to MPP bellows 1's connection, wedge groove 603 is processed on MPP bellows 1 is close to the outer wall of annular groove 4 one side, the design can shelter from its junction when MPP bellows 1 connects like this, further avoid steam infiltration, can play the fastening effect to the junction simultaneously, promote connection stability.

When the compression-resistant moisture-proof MPP corrugated pipe is used, the hardness of the inner wall of the MPP corrugated pipe 1 can be increased through the arrangement of the phenolic resin paint layer 102, meanwhile, the characteristics of water resistance and chemical corrosion resistance can be achieved, the strength of the MPP corrugated pipe 1 is increased through the arrangement of the steel tape layer 103 and the polyphenylene sulfide layer 104, the compression resistance of the MPP corrugated pipe 1 is further improved, the compression-resistant MPP corrugated pipe also has the advantages of high temperature resistance, chemical resistance, flame resistance, good thermal stability, excellent electrical performance and the like, the outer wall of the MPP corrugated pipe 1 can be prevented from being subjected to water-proof effect and water drop detention can be avoided through the arrangement of the waterproof breathable film 1061 and the super-hydrophobic coating film 1062, so that the water drops cannot be infiltrated inwards, the moisture-proof effect is achieved, meanwhile, the connection of the MPP corrugated pipe 1 can be tightened through the shielding of the lantern ring 601 at the connection part of the MPP corrugated pipe 1 and the arrangement of the bolt 602 and the wedge groove 603, when the screw 603 is tightly pressed against the wedge surface of the inner wall of the wedge groove 603, and then shelter from MPP bellows 1 junction, further avoid the steam infiltration, can play the fastening to the junction simultaneously, promote connection stability.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a dampproofing MPP bellows of resistance to compression, includes MPP bellows (1), its characterized in that: the MPP corrugated pipe (1) comprises an MPP base layer (101), a phenolic resin paint layer (102), a steel tape layer (103), a polyphenylene sulfide layer (104), an aluminum-plastic composite layer (105) and a moisture-proof layer (106);

the MPP base course (101) inner wall has scribbled phenolic resin lacquer layer (102), the outer wall parcel of MPP base course (101) has steel tape layer (103), the outer wall parcel of steel tape layer (103) has polyphenylene sulfide layer (104), the outer wall parcel of polyphenylene sulfide layer (104) has aluminium-plastic composite layer (105), the outer wall of aluminium-plastic composite layer (105) has scribbled dampproof course (106).

2. The anti-compression and moisture-proof MPP corrugated pipe as set forth in claim 1, wherein: annular bulge (3) have been processed to the one end of MPP bellows (1), annular recess (4) have been processed to the opposite side of MPP bellows (1).

3. The anti-compression and moisture-proof MPP corrugated pipe as set forth in claim 1, wherein: the both ends of MPP bellows (1) are all processed and are had embedded groove (5), one side that MPP bellows (1) are close to annular bulge (3) is equipped with sealing washer (2), sealing washer (2) rigid coupling is in embedded groove (5) of homonymy.

4. The anti-compression and moisture-proof MPP corrugated pipe as set forth in claim 1, wherein: the moisture-proof layer (106) comprises a waterproof breathable film (1061) and a super-hydrophobic coating film (1062);

the waterproof breathable film (1061) is coated on the outer wall of the aluminum-plastic composite layer (105), and a super-hydrophobic coating (1062) is coated on the outer side of the waterproof breathable film (1061).

5. The anti-compression and moisture-proof MPP corrugated pipe as set forth in claim 1, wherein: both ends of the MPP corrugated pipe (1) are provided with connecting mechanisms (6);

the connecting mechanism (6) comprises a collar (601), a bolt (602) and a wedge groove (603);

the inner wall one side of the lantern ring (601) is sleeved and fixed on the outer wall of one side of the MPP corrugated pipe (1) close to the annular protrusion (3), the upper side and the lower side of the lantern ring (601) are connected with the bolts (602) in a threaded mode, the inner ends of the bolts (602) are embedded in the wedge grooves (603), and the wedge grooves (603) are machined on the outer wall of one side of the MPP corrugated pipe (1) close to the annular groove (4).

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