Double-layer packaging hose with exhaust device

Abstract

The utility model provides a double-layer packaging hose with an exhaust device, which comprises a cover 12, a pipe orifice 11, an inner pipe 9, an outer pipe 8 and the exhaust device A. The exhaust device A is fixed on the outer pipe. According to the utility model, the phenomenon that the tube body is broken and the material body overflows due to the fact that the material body in the tube generates a large amount of gas in the irradiation sterilization process can be solved.

Description

TECHNICAL FIELD

[0001] The application relates to a double-layer packaging soft tube, in particular to a double-layer packaging soft tube with an exhaust device. BACKGROUND

[0002] At present, a soft tube is a commonly used packaging material for storing cosmetics on the market, but the existing soft tube is prone to bursting and material overflow due to the sudden increase of internal pressure during sterilization. In view of this problem, the packaging soft tube is usually designed into a double-layer structure to solve the problem by reserving the space in the soft tube, but the gas generated due to the pressure change of the material in the soft tube during sterilization cannot be exhausted, which not only increases the probability of material pollution, but also affects the user experience.

[0003] Therefore, in view of the above problems, the inventors propose a double-layer packaging soft tube capable of automatically exhausting excess gas. SUMMARY

[0004] To solve the above technical problems, the application provides a double-layer packaging soft tube with an exhaust device.

[0005] The double-layer packaging soft tube with an exhaust device provided by the application adopts the following technical scheme:

[0006] The double-layer packaging soft tube with an exhaust device comprises a cover, a pipe opening, an inner tube, an outer tube and an exhaust device, wherein the exhaust device comprises an upper support, an exhaust soft nozzle, an air inlet pipe, an exhaust pipe and a lower support; the tail end of the exhaust soft nozzle is an exhaust channel made of elastic material, the exhaust channel is a curved structure and is inserted into the exhaust pipe, and the tail end of the exhaust channel is hot-pressed into an "I" shape.

[0007] Preferably, the upper support is integrally formed with the air inlet pipe.

[0008] Preferably, the exhaust soft nozzle is sleeved on the air inlet pipe, and the upper support and the exhaust pipe extrude and fix the exhaust soft nozzle on the air inlet pipe.

[0009] Preferably, the tail end of the exhaust pipe is provided with a limiting block, and more preferably, the limiting block is a hard protruding structure arranged on the outer two sides of the tail end of the exhaust pipe.

[0010] Preferably, the tail end of the exhaust pipe is provided with an internal thread, and the exhaust pipe is connected with the lower support through the thread, and the limiting block is abutted with the outer tube by rotating.

[0011] Preferably, the lower support has a through hole.

[0012] Preferably, the exhaust device is arranged on the outer tube.

[0013] Preferably, the inner tube is a breathable membrane with elasticity; and the inner tube and the outer tube have a space therebetween.

[0014] Preferably, the air inlet pipe is in communication with the space; and the air outlet pipe is in communication with the external atmosphere.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The double-layer packaging hose with the air exhaust device can effectively prevent the hose from swelling during sterilization or storage, so as to avoid the hose body from being broken and the material from overflowing.

[0017] 2. The design of the air exhaust nozzle effectively avoids the problems of gas backflow and external gas entering to pollute the material. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a schematic view of the overall structure of the hose.

[0019] Figure 2 Fig. 2 is a partially cutaway view of the hose.

[0020] Figure 3 Fig. 3 is a schematic view of the structure of the air exhaust device (A).

[0021] Figure 4 Fig. 4 is a schematic view of the structure of the air exhaust device (B). Figure 3 Fig. 5 is an enlarged view of the structure of the air exhaust device (B).

[0022] Figure 5 Fig. 6 is a schematic view of the structure of the air exhaust device (C).Figure 3 Partial enlarged view of the middle C structure.

[0023] Reference numerals: 1, upper support; 2, exhaust soft nozzle; 3, air inlet pipe; 4, exhaust pipe; 5, limiting block; 6, exhaust passage; 7, lower support; 8, outer pipe; 9, inner pipe; 10, space between inner pipe and outer pipe; 11, pipe opening; 12, cover. DETAILED DESCRIPTION

[0024] In order to further illustrate the technical means and effects taken by the utility model to achieve the predetermined purpose, the specific implementation, structural features and effects of the utility model will be described in detail below in combination with the drawings and examples.

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] In the description of the utility model, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "aligned", "overlapped", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] The terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features; in the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0028] Example 1

[0029] The present embodiment provides a double-layer packaging hose with an exhaust device as shown in Figures 1-5 The exhaust device A is fixed on the outer pipe 8. The gas generated in the hose is discharged to the outside of the hose through the exhaust device A, avoiding the phenomena of hose body rupture, material overflow and material pollution caused by rapid increase of gas pressure.

[0030] Further, the exhaust device A is located in the space between the inner tube and the outer tube and is arranged on the outer tube 8, wherein the exhaust device A comprises an upper support 1, an air inlet pipe 3, an exhaust soft nozzle 2, an exhaust pipe 4 and a lower support 7; wherein the upper support 1 and the air inlet pipe 3 are integrally formed.

[0031] Further, the tail end of the exhaust soft nozzle 2 is an exhaust passage 6 made of elastic material, wherein the exhaust passage 6 is a curved structure and extends into the exhaust pipe 4, and the tail end of the exhaust passage 6 is hot-pressed into an "I" shape, which can avoid the external gas entering the inner tube through the exhaust passage 6 to pollute the material under normal pressure.

[0032] Further, the exhaust soft nozzle 2 is sleeved on the air inlet pipe 3, and the support 1 and the exhaust pipe 4 extrude and fix the exhaust soft nozzle 2 on the air inlet pipe 3.

[0033] Further, the tail end of the exhaust pipe 4 is provided with a limiting block 5, and further, the limiting block 5 is a hard protruding structure arranged on the outer two sides of the tail end of the exhaust pipe 4; wherein the tail end of the exhaust pipe 4 and the lower support 7 are threadedly connected to rotate the limiting block 5 on the exhaust pipe 4 to abut against the outer tube 8 for fixation.

[0034] Further, the lower support 7 has a through hole.

[0035] Further, the inner tube 9 is a gas permeable membrane with elasticity, and the inner tube 9 and the outer tube 8 have a space 10 therebetween.

[0036] Further, the air inlet pipe 3 in the exhaust device A is in communication with the space 10; and the exhaust pipe 4 is in communication with the external atmosphere, so that the excess gas generated in the inner tube is discharged to the outside through the air inlet pipe 3 and the exhaust pipe 4, thereby maintaining the air pressure balance inside and outside the hose.

[0037] Actual application process

[0038] Exhaust process of double-layer packaging hose with exhaust device

[0039] The material to be sterilized is filled into the inner tube for sterilization. During the sterilization process, due to the change of air pressure in the tube, a large amount of gas is generated in the material, which overflows into the space 10 between the inner tube 9 and the outer tube. Since the air inlet pipe 3 of the exhaust device A is in communication with the space 10 between the inner tube and the outer tube, the excess gas overflows into the exhaust soft nozzle 2 through the air inlet pipe 3. Due to the influence of air pressure, the exhaust passage 6 at the tail end of the exhaust soft nozzle 2 is extruded open, and the gas enters the exhaust pipe 4 from the exhaust passage 6. Since the exhaust pipe 4 is in communication with the external atmosphere, the excess gas is discharged to the outside of the hose, thereby maintaining the air pressure balance inside and outside the hose.

[0040] Explanation of the air-tightness of the exhaust device A:

[0041] The double-layer packaging hose with the exhaust device provided by the utility model is placed under normal pressure, the exhaust pipe 4 of the exhaust device A is communicated with the external space of the hose, under normal pressure, the gas outside the hose enters through the exhaust pipe 4, since the exhaust passage 6 is a curved structure passage made of elastic material, and the tail end of the exhaust passage 6 is hot-pressed into an "I" shape, therefore, the exhaust passage 6 is in a closed state, and it is ensured that the gas outside the hose cannot enter the hose interior to pollute the material body.

[0042] When the air pressure outside the hose is greater than the air pressure inside the hose, the external gas enters the exhaust pipe 4 under the influence of the air pressure, since the exhaust passage 6 is made of elastic material, and the tail end thereof is hot-pressed into an "I" shape, therefore, when the external air pressure is too large, the tail end of the exhaust passage 6 is extruded to be more airtight, and it can be avoided that the external gas enters the hose interior to pollute the material body.

[0043] The above content is a further detailed description of the utility model in combination with the specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, under the premise of not departing from the concept of the utility model, a plurality of simple deductions or replacements can be made, and all of them shall be regarded as belonging to the protection scope of the utility model.

Claims

1. A double-layer packaging hose with a venting device, comprising a cover (12), a nozzle (11), an inner tube (9), an outer tube (8), and a venting device (A), wherein the venting device (A) comprises an upper support (1), a venting nozzle (2), an air inlet tube (3), an air outlet tube (4), and a lower support (7); a tail end of the venting nozzle (2) is an air outlet channel (6) made of elastic material, the air outlet channel (6) is in a curved structure and extends into the air outlet tube (4), and a tail end of the air outlet channel (6) is in an "I" shape.

2. A double-walled, flexible, packaging tube with a venting device according to claim 1, characterized in that: The upper support (1) is integrally formed with the air inlet tube (3).

3. A double-walled, flexible, packaging tube with a venting device according to claim 1, characterized in that: The venting nozzle (2) is sleeved on the air inlet tube (3).

4. A double-walled, flexible, packaging tube with a venting device according to claim 3, characterized in that: A limiting block (5) is arranged on the outer side of the tail end of the air outlet tube (4).

5. A double-walled, flexible, packaging tube with a venting device according to claim 4, characterized in that: The tail end of the air outlet tube (4) is provided with an internal thread, and the air outlet tube (4) is connected with the lower support (7) through the thread.

6. A double-walled, flexible, packaging tube with a venting device according to claim 1, characterized in that: The lower support (7) has a through hole.

7. A double-walled, flexible, packaging tube with a venting device according to claim 1, characterized in that: The venting device (A) is arranged on the outer tube (8).

8. Double-ply packaging hose with a venting device according to any one of claims 1-7, characterized in that: The inner tube (9) is a breathable film with elasticity; and the inner tube (9) and the outer tube (8) have a space (10) therebetween.

9. A double-walled, flexible, packaging tube having a venting device according to claim 8, characterized in that: The air inlet tube (3) is in communication with the space (10); and the air outlet tube (4) is in communication with the atmosphere.

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