CN209146524U - A kind of plastics lined pipe of anti-plastic-steel separation - Google Patents

Abstract

The utility model discloses a kind of plastics lined pipes of anti-plastic-steel separation; it include: pipeline body; its pipeline body includes: metal outer pipe and plastic inner pipe; the plastic inner pipe is set in metal outer pipe; the both ends of the pipeline body are equipped with protection head; the hollow cylinder protection head that protection head is integrally formed; it protects and is equipped with glue-line between head and pipeline body; opening up for the two-port of metal outer pipe is fluted; protecting head includes vertical patch and T-type baffle, and the novel structure is simple, and design is reasonable; stable connection effectively can avoid plastic inner pipe from falling off.

Description

A kind of plastics lined pipe of anti-plastic-steel separation

Technical field

The utility model relates to a kind of plastics lined pipes of anti-plastic-steel separation.

Background technique

Plastics lined pipe includes metal outer pipe and plastic inner pipe, and plastic inner pipe is adhered on metal outer pipe inner wall.Due to metal tube Part structural strength is big, and is unlikely to deform；And plastic pipe can be corrosion-resistant, plastics lined pipe combines the spy of metal tube and plastic pipe Point, have many advantages, such as structural strength it is big, it is corrosion-resistant, be not susceptible to deformation, be increasingly being used as the pipe fittings such as running water pipe.

However, the plastic inner pipe of traditional plastics lined pipe is connect built on the sand with metal outer pipe, plastic inner pipe holds under larger hydraulic pressure It is easily detached from metal outer pipe, so that plastics lined pipe overall structure is destroyed, the end of plastics lined pipe is directlyed adopt in the prior art Protective case prevents water from entering in the gap of metal outer pipe and plastic inner pipe, still, the side of the end of protective case only to the gap Edge, in use, due to prolonged use, by current scour repeatedly, water flow can be from protection for the junction of pipeline The end gap of set enters metal outer pipe and plastic inner pipe gap is not easy to flow out again, for a long time impregnate after make plastic inner pipe with There is a situation where separating between metal steel pipe, causes plastics lined pipe to divide, influence the service life of pipeline, and in the protection of addition Set is generally metal pullover, when opening metal outer pipe indent to plastics lined pipe, is easy to give so that plastics lined pipe spins since surface is smooth Fluting is made troubles.

Therefore, it is simple to produce a kind of structure, rationally, stable connection can effectively avoid plastic inner pipe from falling off anti-for design The plastics lined pipe of plastic-steel separation, has extensive market prospects.

Summary of the invention

In view of the deficiencies of the prior art, it is simple to provide a kind of structure for the utility model, and rationally, stable connection can for design The plastics lined pipe for the anti-plastic-steel separation for effectively plastic inner pipe being avoided to fall off.

The technical solution of the utility model is achieved in that a kind of plastics lined pipe of anti-plastic-steel separation, comprising: pipeline sheet Body, pipeline body include: metal outer pipe and plastic inner pipe, and the plastic inner pipe is set in metal outer pipe, it is characterised in that: institute The both ends for the pipeline body stated are equipped with protection head, and the hollow cylinder protection head that protection head is integrally formed protects head and pipeline Glue-line is equipped between ontology, opening up for the two-port of metal outer pipe is fluted, and the protection head includes that vertical patch and T-type are kept off Piece.

The T-type baffle includes lateral baffle and vertical inserted sheet.

Pressure is equipped with the anti-skidding raised line of waveform on the veneer that the vertical patch is not bonded with plastic inner pipe.

The length of the lateral baffle is identical as the thickness after metal outer pipe and plastic inner pipe socket.

The length of the vertical inserted sheet determines according to the length of groove, and the thickness of vertical inserted sheet is according to the width of groove To determine.

Rubber gasket is folded between the vertical inserted sheet and groove.

The rubber gasket is U-shaped gasket.

Insulating layer is equipped between the metal outer pipe and plastic inner pipe, the insulating layer is polyurethane foam.

The utility model has following good effect: a kind of plastics lined pipe of anti-plastic-steel separation is set in the end of plastics lined pipe There is protection head, opening up for the two-port of metal outer pipe is fluted, and protection head includes vertical patch and T-type baffle, will protect in this way In the vertical inserted sheet insertion groove of head, rubber gasket is folded between vertical inserted sheet and groove, and laterally baffle extends to The edge of metal outer pipe is not intake in the gap that can be connected in this way with effective protection metal outer pipe with plastic inner pipe, is not impregnated, Prolong the service life, and on the hollow inner wall of protection head, i.e., the unilateral upper pressure that vertical patch is not bonded with plastic inner pipe is set There is the anti-skidding raised line of waveform, after plastics lined pipe addition protection head can be effectively prevent, when the outer wall to plastics lined pipe carries out indent, protection Inner wall is excessively smooth that plastics lined pipe is caused to skid for head, makes troubles to indent, greatly increases frictional force after adding the anti-skidding raised line of waveform Degree, facilitates indent.

In summary: the novel structure is simple, and rationally, stable connection effectively can avoid plastic inner pipe from falling off for design.

Detailed description of the invention

Fig. 1 is the main structure schematic diagram of the installation protection head of the utility model.

Fig. 2 is the structural schematic diagram for not installing protection head of the utility model.

Fig. 3 is the structural schematic diagram that the utility model protects head.

Fig. 4 is the rubber gasket structural schematic diagram of the utility model.

Fig. 5 is the structural schematic diagram of the anti-skidding raised line of the utility model waveform.

In figure: 1 metal outer pipe, 2 plastic inner pipes, 3 protection heads, 4 insulating layers, 5 grooves, 31 vertical patches, 32 L-type baffles, 321 lateral baffles, 322 vertical inserted sheets, the anti-skidding raised line of 6 waveforms, 7 rubber gaskets.

Specific embodiment

The utility model will be further described with reference to the accompanying drawing.

As shown in Fig. 1~5, a kind of plastics lined pipe of anti-plastic-steel separation, comprising: pipeline body, pipeline body include: metal 2 in outer tube 1 and plastics, the plastic inner pipe 2 is set in metal outer pipe 1, and the both ends of the pipeline body are equipped with protection head 3, The hollow cylinder protection head that protection head 3 is integrally formed, protects and is equipped with glue-line between head 3 and pipeline body, metal outer pipe 1 Two-port opens up fluted 5.The protection head 3 includes vertical patch 31 and T-type baffle 32.The T-type baffle 32 wraps Include lateral baffle 321 and vertical inserted sheet 322.Pressure is equipped with wave on the veneer that the vertical patch 31 is not bonded with plastic inner pipe 2 The anti-skidding raised line 6 of shape, namely the inner ring wall of protection head hollow cylinder are provided with waveform anti-skidding convex 6, and the anti-skidding raised line 6 of waveform is at least set It is equipped with 1, the thickness after the length of the lateral baffle 321 is socketed with metal outer pipe 1 and plastic inner pipe 2 is identical, that is, The length of lateral baffle 321 is equal to plastic inner pipe 2 plus the length of 1 inner wall of metal outer pipe to groove 5.322 distance of vertical inserted sheet The length root of the length of vertical patch 31 vertical inserted sheet 322 identical as the length of groove distance plastic inner pipe 2 also, described It is determined according to the length of groove 5, the thickness of vertical inserted sheet 322 is determined according to the width of groove 5.Vertical inserted sheet 322 and groove It is used in combination, is folded with rubber gasket 7 between the vertical inserted sheet 322 and groove 5.The rubber gasket 7 is U Grommet type seal.Insulating layer 4 is equipped between the metal outer pipe 1 and plastic inner pipe 2, the insulating layer 4 is polyurethane foam Layer.The outer wall pressure of the metal outer pipe 1 is equipped with indent.

When in use, first according to the plastic inner pipe 2 and metal outer pipe 1 preset, metal outer pipe 1 is set in for this product Plastic inner pipe 2 is outer and completes to paste closely sealed, then, according to the length and width and depth set in advance, opens in the two ends of metal outer pipe 1 If groove 5, then head 3 will be protected to block the two ends set into plastics lined pipe, at the same time, vertical patch 31 drops into plastic inner pipe The vertical inserted sheet of head 3 is protected in 2 inner walls, the gap that lateral baffle 321 will shelter from metal outer pipe 1 and plastic inner pipe 2 connects In 322 insertion grooves 5, and rubber gasket 7 is filled in groove 5 in advance, then by plastics lined pipe expander will protect head 3 with Lining plastic inside pipe wall and end extruding are closely sealed, reach and do not intake in the gap for protecting metal outer pipe 1 and plastic inner pipe 2 to connect, no It is impregnated, is prolonged the service life, and on the hollow inner wall of protection head 3, i.e., what vertical patch 31 was not bonded with plastic inner pipe 2 Pressure is equipped with the anti-skidding raised line 6 of waveform on surface, after plastics lined pipe can be effectively prevent to add protection head 3, in the outer wall two to plastics lined pipe When end carries out indent, 3 inner wall of head is excessively smooth that plastics lined pipe is caused to skid for protection, makes troubles to indent, and addition waveform is anti-skidding convex Friction dynamics are greatly increased after item 6, facilitate indent.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with It modifies the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；It is all Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in guarantor of the invention Within the scope of shield.

Claims (8)

1. a kind of plastics lined pipe of anti-plastic-steel separation, comprising: pipeline body, pipeline body include: metal outer pipe and plastic inner pipe, The plastic inner pipe is set in metal outer pipe, it is characterised in that: the both ends of the pipeline body are equipped with protection head, and protection head is Integrally formed hollow cylinder protects head, protects and is equipped with glue-line between head and pipeline body, and the two-port of metal outer pipe is opened Equipped with groove, the protection head includes vertical patch and T-type baffle.

2. the plastics lined pipe of anti-plastic-steel separation according to claim 1, it is characterised in that: the T-type baffle includes laterally Baffle and vertical inserted sheet.

3. the plastics lined pipe of anti-plastic-steel separation according to claim 1, it is characterised in that: the vertical patch not with plastics Pressure is equipped with the anti-skidding raised line of waveform on the veneer of inner tube fitting.

4. the plastics lined pipe of anti-plastic-steel separation according to claim 2, it is characterised in that: the length of the lateral baffle with Thickness after metal outer pipe is socketed with plastic inner pipe is identical.

5. the plastics lined pipe of anti-plastic-steel separation according to claim 2, it is characterised in that: the length root of the vertical inserted sheet It is determined according to the length of groove, the thickness of vertical inserted sheet is determined according to the width of groove.

6. the plastics lined pipe of anti-plastic-steel separation according to claim 2, it is characterised in that: the vertical inserted sheet and groove it Between be folded with rubber gasket.

7. the plastics lined pipe of anti-plastic-steel separation according to claim 6, it is characterised in that: the rubber gasket is U-shaped Gasket.

8. the plastics lined pipe of anti-plastic-steel separation according to claim 1, it is characterised in that: in the metal outer pipe and plastics Insulating layer is equipped between pipe, the insulating layer is polyurethane foam.