CN114688363A

CN114688363A - Novel knurling type drain pipe

Info

Publication number: CN114688363A
Application number: CN202210257121.9A
Authority: CN
Inventors: 张学进
Original assignee: Zhejiang Jinhua Wanli Rubber & Plastic Industry Co ltd
Current assignee: Zhejiang Jinhua Wanli Rubber & Plastic Industry Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-01
Anticipated expiration: 2042-03-16
Also published as: CN114688363B

Abstract

The invention discloses a novel embossed drain pipe which comprises an embossed leather sleeve, a corrugated inner pipe, a sealing part and a clamping hook, wherein the corrugated inner pipe is arranged in the embossed leather sleeve, and the sealing part is formed outside one end of the corrugated inner pipe through an injection molding process, so that the corrugated inner pipe is embedded in the sealing part for a certain length; the sealing part is partially inserted into the embossing leather sleeve, and the clamping hook is arranged at the part of the sealing part outside the embossing leather sleeve. The invention directly forms the sealing part outside the end part of the corrugated inner pipe through injection molding, so that the sealing part and the corrugated inner pipe are directly connected into a whole, the size consistency of the inner hole of the joint is ensured, the water seepage phenomenon caused by the matching precision is avoided, the requirement on the manufacturing precision is lower, the production cost is favorably reduced, and the problem of difficult assembly is avoided.

Description

Novel knurling type drain pipe

Technical Field

The invention relates to the technical field of drain pipes, in particular to a novel embossing type drain pipe.

Background

The drain pipe is a drainage pipe, and as society develops and living standards of people increase, the drain pipe is used more frequently, and for example, a refrigeration device needs to drain water. Although the production process of the existing drain pipe is maturing day by day, part of the production process is still insufficient to be improved.

Chinese utility model patent with application number CN201921284039.5 discloses an knurling formula drain pipe, as shown in fig. 1, including knurling skin sleeve pipe 2, knurling skin sleeve pipe 2's inside wall is provided with ripple inner tube 1, the right side wall outside of ripple inner tube 1 is provided with pothook 3, and the inside rubber seal part 4 that all is provided with of the left and right sides wall of ripple inner tube 1. The drain pipe can enhance the anti-seepage performance of the corrugated inner pipe to a certain extent, and simultaneously improve the wear resistance, corrosion resistance, compression resistance and fracture resistance of the corrugated inner pipe.

The utility model discloses an embossing formula drain pipe that above-mentioned utility model discloses is called the third generation product in industry, and it assembles the inside that the sealing member was packed into the ripple inner tube, and the bellows flushes and stretches out embossing skin sleeve pipe with the tip of sealing member, sets up the annular in the outside of bellows and carries out the assembly of pothook.

However, during the actual assembly and use, the following defects still exist in the drain pipe:

1. the corrugated inner pipe and the sealing part are assembled after being respectively formed, the requirement on the size matching precision of the corrugated inner pipe and the sealing part is strict, and if the corrugated inner pipe and the sealing part are not accurately matched in size due to manufacturing errors and the like, the phenomenon of water seepage after sale is easy to occur;

2. if the wall thickness of the corrugated inner pipe is required to be thicker, the corrugated inner pipe is difficult to deform, and the corrugated inner pipe is difficult to assemble and clean, so that the production efficiency is influenced;

3. the application range is small, the size and specification of the external pipeline of the interface are usually inconsistent or have errors in actual use, and the corrugated inner pipe is wrapped outside the sealing part at the interface and can limit the deformation of the rubber sealing part to a certain extent, so that the external diameter range of the external pipeline applicable to the corrugated inner pipe is small;

4. the sealing component is a vulcanized product and can generate flash or plugging phenomenon when being arranged in the corrugated inner pipe.

Aiming at a series of problems, the invention designs a new generation of embossed drainage pipe.

Disclosure of Invention

The invention aims to provide a novel knurling type drain pipe and aims to solve the technical problems in the prior art.

In order to achieve the above purpose, the invention provides the following technical scheme: a novel embossed drain pipe comprises an embossed leather sleeve, a corrugated inner pipe, a sealing part and a clamping hook, wherein the corrugated inner pipe is arranged in the embossed leather sleeve, and the sealing part is formed outside one end of the corrugated inner pipe through an injection molding process, so that the corrugated inner pipe is embedded in the sealing part for a certain length; the sealing part is partially inserted into the embossing leather sleeve, and the clamping hook is arranged at the part of the sealing part outside the embossing leather sleeve.

Preferably, the end of the corrugated inner tube near the sealing member is lower than the end of the embossed skin sleeve.

Preferably, the part of the sealing component inserted into the embossing leather sleeve is defined as an inner end part, the part positioned outside the embossing leather sleeve is defined as an outer end part, and the junction of the outer end part and the inner end part is provided with a step, so that the outer diameter of the outer end part is larger than that of the inner end part.

Preferably, the outer end surface is provided with a ring groove, and the hook is embedded in the ring groove.

Preferably, the inner wall of the sealing component is provided with a limit convex ring.

Preferably, at least one peak of the end of the corrugated inner tube is located within the sealing member.

Preferably, the inner diameter of the sealing member is 16.4 mm.

Preferably, the sealing member is made of an elastic material, and the elastic range of the inner diameter of the sealing member is ± 2 mm.

Preferably, a lantern ring is arranged outside one end of the embossed skin sleeve close to the sealing part.

Compared with the prior art, the invention has the advantages that:

1. the invention directly forms the sealing part outside the end part of the corrugated inner pipe through injection molding, so that the sealing part and the corrugated inner pipe are directly connected into a whole, the size consistency of the inner hole of the joint is ensured, the water seepage phenomenon caused by the matching precision is avoided, the requirement on the manufacturing precision is lower, the production cost is favorably reduced, and the problem of difficult assembly is avoided.

2. The invention uses the sealing part as the interface of the external pipeline, the external part is not wrapped by the corrugated inner pipe, the deformation is not bound, and the application range can be enlarged by the deformation.

Drawings

FIG. 1 is a schematic view of a prior art drain structure.

Fig. 2 is a partial cross-sectional schematic view of the present invention.

Fig. 3 is a schematic cross-sectional view taken along the line a-a of fig. 2 in accordance with the present invention.

Fig. 4 is a schematic structural view of the hook of the present invention.

FIG. 5 is a schematic view of the structure of FIG. 4 in the direction B.

In the figure: 1. a corrugated inner tube; 2. embossing the skin sleeve; 3. a hook; 4. a sealing member; 5. a collar; 6. a limit convex ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further specifically described below by examples.

Example (b): a novel embossing type drain pipe is shown in figures 2-5 and comprises an embossing leather sleeve 2, a corrugated inner pipe 1, a sealing part 4 and a clamping hook 3, wherein the corrugated inner pipe 1 is arranged in the embossing leather sleeve 2, the sealing part 4 is formed outside one end of the corrugated inner pipe 1 through an injection molding process, and when the novel embossing type drain pipe is used for injection molding, one end of the corrugated inner pipe 1 is inserted into a mold for a certain depth, so that the corrugated inner pipe 1 extends into the sealing part 4 for a certain length. A part of the sealing component 4 is inserted into the embossing sheath sleeve 2, in this embodiment, the part of the sealing component 4 inserted into the embossing sheath sleeve 2 is defined as an inner end part, the part positioned outside the embossing sheath sleeve 2 is defined as an outer end part, and the hook 3 is arranged at the outer end part.

In the above structure, the end of the corrugated inner tube 1 at least needs to have a complete wave peak extending into the sealing part 4, and in this embodiment, two wave peaks are located in the sealing part 4 to ensure the firm connection between the two and ensure the sealing property.

In this embodiment, the outer diameter of the outer end of the sealing member 4 is larger than the inner end, a step is formed on the outer surface of the sealing member 4, the outer diameter of the inner end matches the inner diameter of the end of the embossed leather sleeve 2, and after the sealing member 4 is inserted into the embossed leather sleeve 2, the step surface contacts with the end surface of the embossed leather sleeve 2, thereby limiting the insertion depth.

In this embodiment, the outer surface of the outer end portion is provided with a ring groove, the hook 3 is embedded in the ring groove, and the hook 3 is fastened after being used for externally connecting a pipeline.

In a preferred embodiment of the invention, a limit convex ring 6 is arranged on the inner wall of the sealing part 4 close to the corrugated inner pipe 1, so that excessive insertion of an external pipeline is avoided.

In a preferred embodiment of the invention, a collar 5 is provided on the outer part of the end of the embossed skin sleeve 2 close to the sealing part 4, and may be made of metal, so as to avoid end abrasion on the one hand and to press the sealing part 4 inside on the other hand.

In this embodiment, on one hand, the sealing member 4 is used as a sealing ring, and on the other hand, the sealing member 4 is used as an interface of an external pipe, and the external pipe is inserted into the sealing member 4 during installation and then fixed by the hook 3, thereby completing the assembly. The internal diameter of seal part 4 sets up to 16.4mm, can satisfy most refrigeration plant's drainage pipe and connect to through the deformation of rubber material's seal part 4 itself, make the internal diameter be in 2 mm's within range through elastic extension, increased the application scope of interface. In order to avoid the corrugated inner tube 1 from influencing the deformation of the interface, the right end of the corrugated inner tube 1 is lower than the port of the embossed leather sleeve 2 in the embodiment.

In this embodiment, reference may be made to the existing product design, for example, the chinese utility model patent with application number CN201921284039.5 mentioned in the background.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A novel embossed drain pipe comprises an embossed leather sleeve, a corrugated inner pipe, a sealing part and a clamping hook, wherein the corrugated inner pipe is arranged in the embossed leather sleeve; the sealing part is partially inserted into the embossing leather sleeve, and the clamping hook is arranged at the part of the sealing part outside the embossing leather sleeve.

2. The novel embossed drain pipe of claim 1 wherein the end of the corrugated inner pipe adjacent the sealing member is lower than the end of the embossed skin sleeve.

3. The embossed drainpipe as claimed in claim 1, wherein the portion of the sealing member inserted into the embossed leather sleeve is defined as an inner end portion, the portion located outside the embossed leather sleeve is defined as an outer end portion, and a step is provided at the interface between the outer end portion and the inner end portion so that the outer diameter of the outer end portion is larger than that of the inner end portion.

4. The novel embossed drainage pipe as claimed in claim 3, wherein the outer end surface is provided with a ring groove, and the hook is embedded in the ring groove.

5. The novel embossed drain pipe according to claim 1, wherein the inner wall of the sealing part is provided with a limit convex ring.

6. The embossed drain pipe of claim 1 wherein the corrugated inner pipe has at least one peak at the end of the corrugated inner pipe within the sealing member.

7. The novel embossed drain pipe of claim 1 wherein the sealing member has an inner diameter of 16.4 mm.

8. A novel embossed drainage pipe as claimed in claim 1 or 7 wherein the sealing member is made of elastic material, and the elastic range of the inner diameter of the sealing member is ± 2 mm.

9. The embossed drain pipe of claim 1 wherein the embossed leather sleeve is externally provided with a collar at an end adjacent to the sealing member.