CN218326615U

CN218326615U - Modified PVC (polyvinyl chloride) pipe with good sealing effect

Info

Publication number: CN218326615U
Application number: CN202222986342.8U
Authority: CN
Inventors: 刘贵兴; 刘贵成; 刘贵志; 权勇飞
Original assignee: Xinjiang Zhichengxing Pipe Industry Co ltd
Current assignee: Xinjiang Zhichengxing Pipe Industry Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-01-17
Anticipated expiration: 2032-11-07

Abstract

The utility model belongs to the PVC tubular product field provides a sealed effectual modified PVC tubular product, including inner tube, spacer, outer tube, sealed end and seal groove, the inner tube outside sets up the spacer, the even symmetry of spacer sets up at inner tube outer wall, and the outer tube is established to the outside cover of spacer, and the seal groove includes inside seal groove and outer seal groove, sealed end includes inside seal end and outer sealed end, and the both ends of inner tube set up inside seal groove or inside seal end, and the both ends of outer tube set up outside seal groove or outside seal end, inside seal groove is the recess of inner tube tip, and the inner wall of inside seal groove sets up first internal thread, the inside seal end is the ladder pipe of inner tube tip, and the outer wall of inside seal end sets up first external screw thread, the outer seal groove is the recess of outer tube tip, and the inner wall of outer seal groove sets up the second internal thread, the outer seal end is the ladder pipe of outer tube tip, and the outer seal end outer wall sets up the second external screw thread. The beneficial effects of the utility model are that sealed effectual, keep warm and slow down ageing.

Description

Modified PVC (polyvinyl chloride) pipe with good sealing effect

Technical Field

The utility model belongs to the PVC tubular product field especially relates to a sealed effectual modified PVC tubular product.

Background

Adopt the rubber sealing ring to connect sealed usually to the pipeline that the pipe diameter is greater than 100mm in modified PVC tubular product among the prior art, the pipeline that is less than 100mm to the pipe diameter adopts the mode of bonding to connect usually, these two kinds of modes can lead to ageing leakage along with factors such as ageing and outside vibration of plastics, all be the pipe diameter commonly used in the life and be less than 100 mm's pipeline, the ageing inconvenient processing of leaking of this kind of pipeline in the life, but traditional connected mode must be accompanied with ageing risk, many old and small districts also have certain difficulty because structural problem leads to installation and maintenance, the event needs one kind can improve sealed effect, avoid ageing and the leakage that leads to because of outside.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sealed effectual, keep warm and slow down ageing modified PVC tubular product, especially be fit for the life pipeline use that the pipe diameter is less than 100 mm.

The technical scheme of the utility model is that: the utility model provides a sealed effectual modified PVC tubular product, includes inner tube, spacer, outer tube, sealed end and seal groove, the inner tube outside sets up the spacer, the even symmetry of spacer sets up at the inner tube outer wall, and the outer tube is established to the outside cover of spacer, the seal groove includes inside seal groove and outer seal groove, sealed end includes inside seal end and outer seal end, and the both ends of inner tube set up inside seal groove or inside seal end, and the both ends of outer tube set up outside seal groove or outside seal end, inside seal groove is the recess of inner tube tip, and the inner wall of inside seal groove sets up first internal thread, inside seal end is the ladder pipe of inner tube tip, and the outer wall of inside seal end sets up first external screw thread, first external screw thread and first interior screw-thread fit, outside seal groove is the recess of outer tube tip, and the inner seal groove inner wall of outside seal groove sets up the second internal thread, outside seal end is the ladder pipe of outer tube tip, and outside seal end outer seal end sets up the second external screw thread and the interior seal groove, and the outer seal groove sets up in the same end of inner tube and outer tube, and the inside seal groove is located from the inside seal groove.

Furthermore, the outer sealing end is arranged at a step of the outer pipe and provided with an outer sealing ring, and the end part of the outer sealing end, which is arranged at the inner sealing end, is provided with an inner sealing ring.

Furthermore, a plastic sleeve is arranged on the outer side of the outer sealing ring and connected with the outer pipe through plastic gun welding.

Furthermore, the isolation block is in transition fit with the outer pipe.

Furthermore, when the first internal thread and the first external thread are matched, the adhesive is filled, and when the second external thread and the second internal thread are matched, the adhesive is filled.

The utility model has the advantages and positive effects that:

1. owing to adopted the structure of inner tube, spacing block and outer tube, can keep apart through the spacing block, for modified PVC pipeline provides the heat preservation effect to can also improve the anti ability of buckling of pipeline through the spacing block structure, avoid the pipeline because of the deformation that external factor leads to, double-deck pipeline still protects the inner tube through the outer tube simultaneously, avoids the damage of inner tube and slows down the ageing of inner tube.

2. Because the sealing effect that the inner seal groove is matched with the outer seal groove to seal the double layers is matched with the sealing ring to seal, compared with a simple sealing ring, the sealing effect is firmer, the sealing effect is better, the effect that external force compresses tightly and seals is provided, the plastic sleeve arranged outside can connect the outer pipe into a whole after being welded and connected through the plastic gun, and the damage of the joint and the leakage caused by aging are avoided.

3. Because the transition fit that spacing block and outer tube adopted can give certain deformation ability of buckling, can not direct action in inner tube when receiving external force and taking place deformation, just can act on the inner tube and provide bending resistance through the spacing block when deformation is too big, avoid the pipeline to lead to deformation because of external pressure.

4. Because the threaded connection of the inner pipe and the outer pipe can be filled with adhesive for fixing and sealing, the joints of the pipelines are combined into a whole, and the embedded pipeline without disassembly is more suitable for household pipelines.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 isbase:Sub>A cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1;

fig. 3 is a cross-sectional view at B-B in fig. 1 according to the present invention.

In the figure:

1. inner pipe 2, isolation pipe 3 and outer pipe

4. Inner seal groove 5, outer seal groove 6 and inner seal end

7. Outer sealing end 8, second internal thread 9 and first internal thread

10. First external thread 11, second external thread 12, outer seal ring

13. Inner sealing ring

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-2

A modified PVC pipe with good sealing effect comprises an inner pipe 1, a spacer block 2, an outer pipe 3, a sealing end and a sealing groove, wherein the spacer block 2 is arranged outside the inner pipe 1, the spacer block 2 is uniformly and symmetrically arranged on the outer wall of the inner pipe 1, the outer pipe 3 is sleeved outside the spacer block 2, the sealing groove comprises an inner sealing groove 4 and an outer sealing groove 5, the sealing end comprises an inner sealing end 6 and an outer sealing end 7, the inner sealing groove 4 or the inner sealing end 6 is arranged at two ends of the inner pipe 1, the outer sealing groove 5 or the outer sealing end 7 is arranged at two ends of the outer pipe 3, the inner sealing groove 4 is a groove at the end part of the inner pipe 1, a first internal thread 9 is arranged on the inner wall of the inner sealing groove 4, the inner sealing end 6 is a stepped pipe at the end part of the inner pipe 1, a first external thread 10 is arranged on the outer wall of the inner sealing end 6, and the first external thread 10 is matched with the first internal thread 9, the outer seal groove 5 is a groove at the end of the outer pipe 3, the inner wall of the outer seal groove 5 is provided with a second internal thread 8, the outer seal end 7 is a stepped pipe at the end of the outer pipe 3, the outer wall of the outer seal end 7 is provided with a second external thread 11, the second external thread 11 is matched with the second internal thread 8, the outer seal groove 5 and the inner seal groove 4 are arranged at the same end of the inner pipe 1 and the outer pipe 3, the outer seal end 7 and the inner seal end 6 are arranged at the same end of the inner pipe 1 and the outer pipe 3, the inner seal end 6 extends out of the outer seal end 7, the inner seal groove 4 is arranged inside the outer seal groove 5, the inner pipe 1 and the outer pipe 3 are respectively connected and sealed, two times of sealing work are carried out, the inner pipe 1 is protected by the outer pipe 3, corrosion of the inner pipe 1 is avoided, the aging of the inner pipe 1 is slowed down, and a heat preservation effect can be provided.

The outer sealing end 7 is provided with an outer sealing ring 12 at the step position of the outer pipe 3, and the end part of the outer sealing end 7 at the inner sealing end 6 is provided with an inner sealing ring 13, so that double-layer sealing effect is provided.

The outer seal ring 12 outside sets up the plastic casing pipe, and the plastic casing pipe passes through plastics gun welding and connects outer tube 3, connects outer tube 3 as a whole, compares to use the plastics flange to carry out the gun welding, has increased inside sealed effect, has improved the wholeness of pipeline, and the junction is difficult for becoming external force damage point.

The spacing block 2 and the outer pipe 3 are in transition fit.

The first internal thread 9 is filled with the adhesive when being matched with the first external thread 10, and the second external thread 11 is filled with the adhesive when being matched with the second internal thread 8, so that the household embedded pipeline which is not required to be frequently replaced is more convenient, and the sealing effect is better.

The working process of the example is as follows:

the first embodiment is as follows: cooperate the interior seal end 6 of inner tube 1 through first external screw thread 10 and the first internal thread 9 of junction, compress tightly interior sealing washer 13 simultaneously, the cooperation of the second internal thread 8 of exterior seal end 7 of outer tube 3 through second external screw thread 11 and junction compresses tightly outer seal ring 12 simultaneously, the cooperation of two-layer screw thread and sealing washer provides good sealed effect, and outer tube 3 can protect inner tube 1, the effect that keeps warm and slow down inner tube 1 is ageing is provided, if pipeline frequent vibration and outside pressurized, can establish the plastic casing pipe and be connected plastic casing pipe and outer tube 3 through the plastic gun welding at the outside cover of outer seal ring 12.

Example two: scribble the adhesive in first external screw thread 10 outward appearance, cooperate the inner seal end 6 of inner tube 1 through first external screw thread 10 and the first internal thread 9 of junction, compress tightly inner seal ring 13 simultaneously, the adhesive is scribbled to second external screw thread 11 outsides, the outer seal end 7 of outer tube 3 cooperates through the second external screw thread 11 and the second internal thread 8 of junction, compress tightly outer seal ring 12 simultaneously, be applicable to the family pre-buried pipeline that need not often change, better connection and sealed effect are provided.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a sealed effectual modified PVC tubular product which characterized in that: including inner tube, spacing block, outer tube, sealed end and seal groove, the inner tube outside sets up the spacing block, the even symmetry of spacing block sets up at the inner tube outer wall, and the outer tube is established to spacing block outside cover, the seal groove includes inside seal groove and outer seal groove, sealed end includes inside seal end and outer seal end, and the both ends of inner tube set up inside seal groove or inside seal end, and the both ends of outer tube set up outside seal groove or outside seal end, inside seal groove is the recess of inner tube tip, and the inner wall of inside seal groove sets up first internal thread, inside seal end is the ladder pipe of inner tube tip, and the outer wall of inside seal end sets up first external screw thread, first external screw thread and first interior screw thread fit, outside seal groove is the recess of outer tube tip, and the inner wall of outside seal groove sets up the second internal thread, outside screw thread and second internal thread fit, outside seal groove and inside seal groove set up in the same one end of inner tube and outer seal end, and outside seal end set up in the same end of inner tube and outside seal groove, and outside seal end stretches out the seal end from the ladder pipe of outer seal end, and inside seal groove is located the seal groove.

2. The modified PVC pipe with good sealing effect as claimed in claim 1, wherein: the outer sealing end is located at the step of the outer pipe and provided with an outer sealing ring, and the end portion, located at the inner sealing end, of the outer sealing end is provided with an inner sealing ring.

3. The modified PVC pipe with good sealing effect as claimed in claim 2, wherein: and a plastic sleeve is arranged on the outer side of the outer sealing ring and is connected with the outer pipe through plastic gun welding.

4. The modified PVC pipe with good sealing effect as claimed in claim 1, wherein: the spacer block is in transition fit with the outer pipe.

5. The modified PVC pipe with good sealing effect as claimed in claim 1, wherein: and the first internal thread and the first external thread are filled with adhesive when matched, and the second external thread and the second internal thread are filled with adhesive when matched.