CN217075410U

CN217075410U - Pipe-in-pipe structure

Info

Publication number: CN217075410U
Application number: CN202220575279.6U
Authority: CN
Inventors: 陈智鹏
Original assignee: Essel Packaging Gunagzhou Ltd
Current assignee: Essel Packaging Gunagzhou Ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-07-29
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a pipe-in-pipe structure, which comprises an outer pipe body, an inner pipe body, a first cover body and a second cover body; the outer pipe body comprises a pipe body and an outer pipe opening, and the outer pipe opening is arranged at one end of the pipe body and is provided with a first discharge hole and a second discharge hole; the inner pipe body is arranged in the outer pipe body and is provided with a first cavity and an inner pipe orifice, the first cavity is arranged on one side in the pipe body, the inner pipe orifice is connected to one end of the first cavity and is embedded into the outer pipe orifice, and the inner pipe orifice is communicated with the first discharge hole; a second cavity is formed between the pipe body and the first cavity and communicated with a second discharge hole; the first cover body detachably seals the first discharge hole; the second cover body detachably seals the second discharge hole. When the extrusion die is used, the first cover body is opened, and the second cover body is closed at the same time, so that the content in the first cavity can be extruded; the second cover body is opened, the first cover body is closed at the same time, the content in the second cavity can be extruded, the content in different cavities can be used independently in a split mode, and the requirement for quantitatively using different types of content is met.

Description

Pipe-in-pipe structure

Technical Field

The utility model relates to a product packaging technical field specifically is a tubular construction in pipe.

Background

At present, various hoses are available on the market, and most of the packing hoses can only realize the packing of one paste. Along with the increasing living standard of people, the packaging requirements for the packaging hose product are more and more refined, and the packaging hose product which can only package one paste body can not meet the requirements of people according to the different requirements for storing and carrying the paste body.

Therefore, a tube-in-tube type packaging hose appears in the market, two different pastes are respectively filled in the packaging hose after the inner tube body and the outer tube body are assembled, similar to the appearance patent 201630272659.2 (tube-in-tube packaging hose with a concentric liquid outlet), the product adopts concentric paste extrusion at the same port, only two pastes can be mixed and extruded, and the requirement of quantitatively using different types of liquid/pastes cannot be met; further, since the inner tube included in the outer tube has a small capacity, it is difficult to control the extrusion amount per extrusion. In the later period of use, the paste in the small tube may be used up, but half of the paste in the outer tube is still unused, which affects the user experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's weak point, provide a pipe structure in pipe, can be used to extrude different contents alone, do benefit to and promote user experience.

In order to achieve the above object, the utility model provides a following technical scheme:

a pipe-in-pipe structure comprises an outer pipe body, an inner pipe body, a first cover body and a second cover body;

the outer pipe body comprises a pipe body and an outer pipe opening, and the outer pipe opening is arranged at one end of the pipe body and is provided with a first discharge hole and a second discharge hole; the inner pipe body is arranged in the outer pipe body and is provided with a first cavity and an inner pipe orifice, the first cavity is arranged on one side in the pipe body, the inner pipe orifice is connected to one end of the first cavity and is embedded into the outer pipe orifice, and the inner pipe orifice is communicated with the first discharge hole; a second cavity is formed between the pipe body and the first cavity and communicated with the second discharge hole; the first cover body detachably seals the first discharge hole; the second cover detachably closes the second discharge port.

As a preferable scheme, the device further comprises a connecting piece, the connecting piece is installed on one side of the outer pipe orifice, and the first cover body and the second cover body are hinged to the top of the connecting piece.

Preferably, the connector is snap-fitted to one side of the outer nozzle.

As a preferred scheme, a clamping groove matched with the connecting piece is formed in one side of the end part of the outer pipe orifice, a convex column protruding towards the clamping groove is formed in the outer pipe orifice, and a clamping hole matched with the convex column is formed in the connecting piece.

Preferably, the connecting members are integrally connected to the first cover and the second cover, respectively.

Preferably, the inner pipe orifice and the outer pipe orifice are fixed by means of mechanical snap-fit or ultrasonic welding or injection welding.

As a preferable scheme, the outer wall of the inner pipe orifice is provided with a protrusion, and the inner wall of the outer pipe orifice is provided with a clamping groove matched with the protrusion.

As a preferable scheme, the device further comprises an outer cover body, wherein the outer cover body is detachably connected with the outer pipe opening and covers the first cover body and the second cover body.

Preferably, the outer cover body is in threaded fit or snap fit with the outer pipe orifice.

Preferably, the pipe body and the outer pipe orifice are welded by injection molding or ultrasonic or hot melting.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the pipe-in-pipe structure provided by the utility model has the advantages that the first discharge port and the second discharge port are respectively sealed by the first cover body and the second cover body, and when the pipe-in-pipe structure is used, the first cover body is opened, and the second cover body is closed, so that the contents in the first cavity can be extruded; the content in the second cavity can be extruded to the closed first lid of second lid simultaneously of opening, can use the content of different cavitys according to the independent split of in-service use scene, can satisfy the demand that the different grade type content was used to the ration, promotes user experience.

2. The first cover body, the second cover body and the outer cover body can play a double-layer sealing effect, the sealing performance of the structure is improved, loss of effective components in the pipe is prevented, and the service life of the product is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is an exploded view of a middle tube-in-tube structure of the present invention;

fig. 2 is a top view of the middle tube-in-tube structure of the present invention;

FIG. 3 is a cross-sectional view of FIG. 2 taken along the line A-A;

fig. 4 is a top view of the middle tube-in-tube structure of the present invention with the outer cover removed;

FIG. 5 is a cross-sectional view of FIG. 4 taken along the direction B-B;

FIG. 6 is a perspective view of the middle and outer tubes of the present invention;

fig. 7 is a top view of the middle and outer tubes of the present invention;

FIG. 8 is a perspective view of the tube-in-tube construction with the first cover open;

FIG. 9 is a perspective view of the tube-in-tube construction with the second cover open;

in the figure:

1. an outer tubular body; 11. a tube body; 111. a second cavity; 12. an outer pipe orifice; 121. a convex column; 122. a card slot; 123. a first discharge port; 124. a second discharge port; 2. an inner tube body; 21. an inner orifice; 211. a protrusion; 22. a first cavity; 3. an outer cover body; 4. a connecting member; 41. clamping holes; 5. a second cover body; 6. a first cover body.

Detailed Description

For the purpose of promoting a better understanding of the objects, structures, features, and functions of the invention, reference should now be made to the drawings and detailed description of the invention. It should be noted that the features illustrated in the drawings are not necessarily drawn to scale. Moreover, the described embodiments are part of the disclosure, and not all of it. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", "front", "rear", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Examples

As shown in fig. 1-9, this embodiment provides a tube-in-tube structure that can be used to extrude different types of contents (e.g., pastes, liquids, powders, etc.). The pipe-in-pipe structure comprises an outer pipe body 1, an inner pipe body 2, a first cover body 6 and a second cover body 5. Wherein, outer body 1 includes pipe shaft 11 and outer nozzle 12, and first discharge gate 123 and second discharge gate 124 have been seted up to outer nozzle 12 setting in the one end of pipe shaft 11. The inner tube 2 is disposed in the outer tube 1 and has a first cavity 22 and an inner orifice 21, and the first cavity 22 is eccentrically disposed in the tube body 11 for containing the contents. The inner pipe orifice 21 is connected to the outlet end of the first cavity 22 and embedded into the outer pipe orifice 12, and the inner pipe orifice 21 is communicated with the first cavity 22 and the first discharge hole 123; a second cavity 111 is formed between the tube body 11 and the first cavity 22 and used for containing another content, and the second cavity 111 is communicated with a second discharge hole; the first cover body detachably seals the first discharge hole; the second cover body 5 detachably closes the second discharge port. In use, opening the first cover while closing the second cover 5 extrudes the contents of the first cavity 22 (see fig. 8); the second cover body 5 is opened, the first cover body is closed at the same time, the content in the second cavity 111 can be extruded (as shown in fig. 9), the content in different cavities can be used independently in a split mode according to actual use scenes, and the requirement for quantitatively using different types of content can be met.

As shown in fig. 3 and 5, the tube body 11 and the outer nozzle 12 are welded by injection molding or ultrasonic or heat fusion. The inner pipe orifice 21 and the outer pipe orifice 12 are fixed by means of mechanical snapping or ultrasonic welding or injection welding.

In addition, the outer wall of the inner port 21 is provided with a protrusion 211, and the inner wall of the outer port 12 is provided with a locking groove 122 matching with the protrusion 211. The inner pipe orifice 21 can be further prevented from separating from the outer pipe orifice 12 by the cooperation of the locking groove 122 and the protrusion 211, so that the connection firmness of the inner pipe body and the outer pipe body is enhanced.

As shown in fig. 1, 4 and 6, the first cover body 6 and the second cover body 5 are mounted on one side of the outer nozzle 12 by a connecting member 4. Specifically, the connecting piece 4 is in snap fit with the side edge of the top end of the outer pipe opening 12, and the first cover body 6 and the second cover body 5 are hinged with the top of the connecting piece 4. So set up, can avoid first lid 6 and second lid 5 to drop, promote user experience.

As shown in fig. 1, in the present embodiment, the connecting member 4 is integrally injection-molded with the first cover 6 and the second cover 5. One side of the end of the outer pipe orifice 12 is provided with a clamping groove 122 matched with the connecting piece 4, the outer pipe orifice 12 is provided with a convex column 121 protruding towards the clamping groove 122, and the connecting piece 4 is provided with a clamping hole 41 matched with the convex column 121. So set up, when the equipment, only need to align card hole 41 and projection 121 can impress connecting piece 4 draw-in groove 122, easy and simple to handle does benefit to and promotes machining efficiency.

Further, as shown in fig. 1-3, the tube-in-tube structure further includes an outer cover 3, and the outer cover 3 is detachably connected to the outer tube opening 12 and covers the first cover 6 and the second cover 5. In this embodiment, the outer cap 3 is threadedly engaged with the outer nozzle 12. In other embodiments, the outer cap 3 may also be in the form of a snap fit to engage with the outer spout 12.

Referring to fig. 8-9, the specific use of the tube-in-tube structure is as follows:

the first cavity 22 and the second cavity 111 are respectively used for storing two different contents, and when in use, the first cover body 6 is opened, and the second cover body 5 is closed at the same time, so that the contents in the first cavity 22 can be extruded (as shown in fig. 8); the second cover body 5 is opened, the first cover body is closed at the same time, the content in the second cavity 111 can be extruded (as shown in fig. 9), the content in different cavities can be independently split and used according to actual use scenes, and the operation is simple and convenient.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pipe-in-pipe structure is characterized by comprising an outer pipe body, an inner pipe body, a first cover body and a second cover body;

2. The pipe-in-pipe structure of claim 1, further comprising a connector installed at one side of the outer pipe opening, wherein the first cover body and the second cover body are hinged to the top of the connector.

3. A tube-in-tube structure as claimed in claim 2, wherein the connector is snap-fitted to one side of the outer nozzle.

4. The tube-in-tube structure as claimed in claim 3, wherein a slot matching with the connector is provided at one side of the end of the outer tube opening, the outer tube opening is provided with a convex post protruding toward the slot, and the connector is provided with a locking hole matching with the convex post.

5. The pipe-in-pipe structure of claim 2, wherein the connecting members are integrally connected with the first cover and the second cover, respectively.

6. A tube-in-tube structure as claimed in claim 1, characterized in that the inner and outer nozzles are fixed by means of mechanical snapping or ultrasonic welding or injection welding.

7. The pipe-in-pipe structure of claim 1, wherein the outer wall of the inner pipe orifice is provided with a protrusion, and the inner wall of the outer pipe orifice is provided with a clamping groove matching with the protrusion.

8. The pipe-in-pipe structure of claim 1, further comprising an outer cover body, wherein the outer cover body is detachably connected to the outer pipe opening and covers the first cover body and the second cover body.

9. The pipe-in-pipe structure of claim 8, wherein the outer cap is threaded or snap-fit with the outer pipe orifice.

10. The tube-in-tube structure of claim 1, wherein the tube body and the outer tube mouth are welded by injection molding or ultrasonic or hot melting.