Double-tube container

Abstract

The utility model discloses a double-tube container, and relates to the technical field of packaging supplies, the double-tube container comprises an outer tube, an inner tube, a tube head and a tube cover, the outer tube is provided with a first liquid storage cavity; the inner pipe is contained in the outer pipe, the outer wall of the inner pipe and the inner wall of the outer pipe are arranged in a spaced mode to form a first liquid storage cavity, and a second liquid storage cavity is formed in the inner pipe; the tube head is fixedly arranged at one axial end of the outer tube and one axial end of the inner tube, the tube head is provided with a first liquid outlet channel and a second liquid outlet channel, the first liquid outlet channel is communicated with the first liquid storage cavity, and the second liquid outlet channel is communicated with the second liquid storage cavity; and the tube cover is detachably connected with the tube head and is used for opening or closing the first liquid outlet channel and the second liquid outlet channel. According to the technical scheme provided by the utility model, the problems that the use is troublesome and the carrying is inconvenient due to the fact that different containers are required to operate when a user mixes and uses various solutions are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging products, in particular to a double-tube container. Background Art

[0002] With the diversification of product types, it is often necessary to use two objects together. For example, some cosmetics on the market often require two or more different substances to be mixed before use in order to achieve the best skin care and beauty effects.

[0003] Most of the cosmetic packaging bottles on the market now have independent structures and monotonous styles, which generally cannot meet the high-quality requirements of customers. Consumers need to purchase multiple bottles of different substances separately when purchasing. Since multiple bottles are needed, it is easy to lose or take less, and it is extremely inconvenient to use and carry. Utility Model Content

[0004] The main purpose of the utility model is to provide a double-tube container, which aims to solve the problem that when users mix and use multiple solutions, they need to use different containers to operate, which causes trouble in use and inconvenience in carrying.

[0005] To achieve the above-mentioned purpose, the present invention proposes a double-tube container, which comprises:

[0006] The outer tube has a first liquid storage cavity;

[0007] an inner tube received in the outer tube, wherein the outer wall of the inner tube and the inner wall of the outer tube are spaced apart to form the first liquid storage cavity, and the interior of the inner tube forms a second liquid storage cavity;

[0008] a pipe head fixedly mounted on one axial end of the outer tube and the inner tube, and provided with a first liquid outlet channel and a second liquid outlet channel, wherein the first liquid outlet channel is connected to the first liquid storage cavity, and the second liquid outlet channel is connected to the second liquid storage cavity; and

[0009] The tube cover is detachably connected to the tube head and is used to open or close the first liquid outlet channel and the second liquid outlet channel.

[0010] In one embodiment, the tube head is provided with a mounting groove and a mounting boss, the mounting groove is arranged toward the tube cover to be embedded in the tube cover, the mounting boss is arranged inside the mounting groove, and the first liquid outlet channel is formed between the outer wall of the mounting boss and the groove wall of the mounting groove, and the second liquid outlet channel is formed inside the mounting boss.

[0011] In one embodiment, a locking protrusion is provided on the outer periphery of the mounting groove, and a locking groove is provided on the inner wall of the pipe cover, and the locking protrusion is engaged in the locking groove.

[0012] In one embodiment, a limiting strip is provided on the outer periphery of the installation groove, a limiting groove is provided on the inner wall of the pipe cover, and the limiting strip is fixed in the limiting groove.

[0013] In one embodiment, the tube cover comprises:

[0014] a cover body detachably connected to the tube head, the cover body being provided with a first dripping hole and a second dripping hole, the first dripping hole being connected to the first liquid outlet channel, and the second dripping hole being connected to the second liquid outlet channel; and

[0015] The flip cover is flippably arranged on a side of the cover body away from the tube head.

[0016] In one embodiment, the cover body is provided with a first sealing ring, which extends toward the tube head and has a through second drip hole provided therein, and an outer wall of the first sealing ring abuts against an inner wall of the mounting boss.

[0017] In one embodiment, the first sealing ring extends toward the flip cover, a second sealing ring is provided on a side of the flip cover facing the cover body, and an outer wall of the second sealing ring abuts against an inner wall of the first sealing ring.

[0018] In one embodiment, the cover body is further provided with a liquid outlet chamber, which is protruding from the side of the cover body facing the flip cover, and the first sealing ring and the first dripping hole are both provided inside the liquid outlet chamber.

[0019] In one embodiment, a third sealing ring is provided on the side of the flip cover facing the cover body, the inner wall of the third sealing ring abuts against the outer wall of the liquid outlet bin, and the second sealing ring is provided inside the third sealing ring.

[0020] In one embodiment, the flip cover and the cover body are connected by a hinge.

[0021] In one embodiment, a notch is provided on an outer wall of the flip cover and / or the cover body.

[0022] In one embodiment, the outer tube, the inner tube and the tube head are integrally formed.

[0023] In the technical solution of the present invention, the outer tube has a first liquid storage cavity for storing a first solution; the inner tube is accommodated in the outer tube, and the interior of the inner tube has a second liquid storage cavity for storing a second solution, wherein the outer wall of the inner tube is spaced apart from the inner wall of the outer tube to form the above-mentioned first liquid storage cavity. In addition, a tube head is provided at one axial end of the outer tube and the inner tube, and the outer diameter of the tube head is smaller than the outer diameter of the outer tube to facilitate the user to squeeze the outer tube when using it; the interior of the tube head is provided with a first liquid outlet channel and a second liquid outlet channel, the first liquid outlet channel is connected to the first liquid storage cavity, and the second liquid outlet channel is connected to the second liquid storage cavity, and a detachable tube cap is also provided on the tube head for opening or closing the first liquid outlet channel and the second liquid outlet channel. When using this double-tube container, the two solutions stored in the first liquid storage cavity and the second liquid storage cavity can flow out to the end face of the tube head through the first liquid outlet channel and the second liquid outlet channel respectively for mixing and use. The outer tube and the inner tube in this technical solution share a tube head for liquid discharge, which not only facilitates the processing of the outer tube and the inner tube, but also helps to reduce production costs. It solves the technical problem that when users mix two substance solutions, they need to use different containers for operation, which causes trouble in use and carrying. At the same time, the cooperation between the tube cover and the tube head facilitates the use and sealing of the solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 A schematic structural diagram of an embodiment of a double-tube container provided by the present utility model;

[0026] Figure 2 A structural front view of an embodiment of a double-tube container provided by the utility model;

[0027] Figure 3 A structural cross-sectional view of an embodiment of a double-tube container provided by the utility model;

[0028] Figure 4 This is an exploded view of the structure of the tube head, inner tube and outer tube in one embodiment of the double-tube container provided by the utility model;

[0029] Figure 5 A structural cross-sectional view of a tube head, an inner tube, and an outer tube in another embodiment of a double-tube container provided by the present invention;

[0030] Figure 6 This is a schematic structural diagram of the tube head in one embodiment of the double-tube container provided by the present invention;

[0031] Figure 7 A schematic diagram of the internal structure of the tube head in one embodiment of the double-tube container provided by the present invention;

[0032] Figure 8 A schematic structural diagram of a tube cover in another embodiment of a double-tube container provided by the present invention;

[0033] Figure 9 A schematic structural diagram of a tube cover in another embodiment of a double-tube container provided by the present invention;

[0034] Figure 10 This is a structural cross-sectional view of the tube cover in another embodiment of the double-tube container provided by the present invention.

[0035] Description of Figure Numbers:

[0036] 100. Double-tube container; 1. Outer tube; 11. First liquid storage chamber; 2. Inner tube; 21. Second liquid storage chamber; 3. Tube head; 31. Mounting slot; 311. First liquid outlet channel; 312. Snap-on protrusion; 313. Limiting strip; 32. Mounting boss; 321. Second liquid outlet channel; 4. Tube cover; 41. Cover body; 411. Snap-on slot; 412. Limiting slot; 413. First dripping hole; 414. Second dripping hole; 415. First sealing ring; 416. Liquid outlet chamber; 42. Flip cover; 423. Notch.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention.

[0039] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] Most of the cosmetic packaging bottles on the market now have independent structures and monotonous styles, which generally cannot meet the high-quality requirements of customers. Consumers need to purchase multiple bottles of different substances separately when purchasing. Since multiple bottles are needed, it is easy to lose or take less, and it is extremely inconvenient to use and carry.

[0042] The utility model provides a double-tube container.

[0043] See also Figures 1 to 5 In one embodiment of the present invention, the double-tube container 100 includes:

[0044] The outer tube 1 has a first liquid storage chamber 11;

[0045] The inner tube 2 is received in the outer tube 1, the outer wall of the inner tube 2 is spaced apart from the inner wall of the outer tube 1 to form a first liquid storage chamber 11, and the interior of the inner tube 2 forms a second liquid storage chamber 21;

[0046] The tube head 3 is fixedly mounted on one axial end of the outer tube 1 and the inner tube 2, and is provided with a first liquid outlet channel 311 and a second liquid outlet channel 321. The first liquid outlet channel 311 is connected to the first liquid storage chamber 11, and the second liquid outlet channel 321 is connected to the second liquid storage chamber 21; and

[0047] The tube cover 4 is detachably connected to the tube head 3 and is used to open or close the first liquid outlet channel 311 and the second liquid outlet channel 321 .

[0048] In the technical solution of the present invention, the outer tube 1 has a first liquid storage chamber 11 for storing a first solution; the inner tube 2 is accommodated in the outer tube 1, and the interior of the inner tube 2 has a second liquid storage chamber 21 for storing a second solution, wherein the outer wall of the inner tube 2 is spaced apart from the inner wall of the outer tube 1 to form the above-mentioned first liquid storage chamber 11. In addition, a tube head 3 is provided at one axial end of the outer tube 1 and the inner tube 2. The outer diameter of the tube head 3 is smaller than the outer diameter of the outer tube 1 to facilitate the user to squeeze the outer tube 1 when using it; a first liquid outlet channel 311 and a second liquid outlet channel 321 are provided inside the tube head 3. The first liquid outlet channel 311 is connected to the first liquid storage chamber 11, and the second liquid outlet channel 321 is connected to the second liquid storage chamber 21. A detachable tube cover 4 is also provided on the tube head 3 for opening or closing the first liquid outlet channel 311 and the second liquid outlet channel 321. When using this double-tube container 100, the two solutions stored in the first liquid storage chamber 11 and the second liquid storage chamber 21 can flow out through the first liquid outlet channel 311 and the second liquid outlet channel 321 to the end surface of the tube head 3 for mixing and use. In this technical solution, the outer tube 1 and the inner tube 2 share the same tube head 3 for liquid discharge, which not only facilitates the processing of the outer tube 1 and the inner tube 2, but also helps reduce production costs. It also solves the technical problem of users needing to use different containers to operate when mixing two substances, which makes it difficult to use and carry. At the same time, the combination of the tube cap 4 and the tube head 3 facilitates the use and sealing of the solutions.

[0049] Specifically, in this embodiment, the outer tube 1 and inner tube 2 are injection molded using a common tube head 3. Compared to processes where the outer tube 1 and inner tube 2, each with a separate tube head 3, are manufactured separately and then assembled, this embodiment's processing can effectively improve processing efficiency and avoid complex assembly steps such as calibrating the position of the inner tube 2 within the outer tube 1. In this embodiment, the detachable connection between the tube cap 4 and the tube head 3 is not specifically limited; for example, it can be a threaded connection or a snap-on connection. It should be noted that the present invention provides a dual-tube container 100 structure that allows two solutions to drip out simultaneously for mixing. If mixing three or more solutions is desired, additional tubes can be added according to the principles of the present invention. This dual-tube container 100 can be used in a variety of applications, such as cosmetic packaging, daily necessities packaging, and pharmaceutical packaging.

[0050] In the embodiments of the present invention, please refer to Figure 4The tube head 3 is provided with a mounting groove 31 and a mounting boss 32. The mounting groove 31 is arranged toward the tube cover 4 so as to be embedded in the tube cover 4. Accordingly, a fixing position can be provided at the corresponding position inside the tube cover 4, and the groove wall of the mounting groove 31 is embedded in the fixing position. The fixing position can play a role of connection and positioning, thereby realizing the detachable connection between the tube head 3 and the tube cover 4; the mounting boss 32 is arranged at intervals inside the mounting groove 31, so that a first liquid outlet channel 311 communicating with the first liquid storage chamber 11 is formed between the outer wall of the mounting boss 32 and the groove wall of the mounting groove 31, and a second liquid outlet channel 321 communicating with the second liquid storage chamber 21 is formed inside the mounting boss 32. It should be noted that the height of the mounting boss 32 is greater than the height of the groove wall of the mounting groove 31, thereby preventing the first solution in the second liquid storage chamber 21 from being connected in series to the first liquid storage chamber 11.

[0051] In the embodiments of the present invention, please refer to Figure 6 and Figure 9 The outer periphery of the mounting groove 31 is provided with a latching protrusion 312, and the inner wall of the tube cover 4 is provided with a latching groove 411, into which the latching protrusion 312 is latched. The latching protrusion 312 can be a plurality of arc-shaped blocks arranged at intervals on the outer wall of the mounting groove 31, or a ring-shaped protrusion arranged around the periphery. Correspondingly, a matching arc-shaped groove or annular groove is provided on the inner wall of the tube cover 4, thereby securing the tube cover 4 in the radial direction and preventing the tube cover 4 from opening spontaneously during use and causing solution overflow.

[0052] In the embodiments of the present invention, please refer to Figure 6 and Figure 9 A limiting strip 313 is provided on the outer circumference of the mounting groove 31, and a limiting groove 412 is provided on the inner wall of the pipe cover 4. The limiting strip 313 is fixed in the limiting groove 412. The limiting strip 313 can be a protrusion extending in the axial direction of the outer wall surface of the mounting groove 31, and the limiting groove 412 is a strip-shaped groove that matches the limiting strip 313, thereby playing a limiting role in the process of covering the pipe cover 4, avoiding the problem of the pipe cover 4 and the pipe head 3 not being able to accurately align and cover. In addition, a plurality of limiting strips 313 can be provided at intervals along the circumference of the outer wall of the mounting groove 31, and the plurality of limiting strips 313 are evenly and symmetrically arranged at a certain interval. It can be understood that a plurality of limiting grooves 412 are also provided.

[0053] In the embodiments of the present invention, please refer to Figure 6 、 Figure 7 and Figure 9 , the tube cover 4 includes:

[0054] The cover 41 is detachably connected to the tube head 3 and is provided with a first drip hole 413 and a second drip hole 414. The first drip hole 413 is connected to the first liquid outlet channel 311, and the second drip hole 414 is connected to the second liquid outlet channel 321; and

[0055] The flip cover 42 is flippably disposed on a side of the cover body 41 facing away from the pipe head 3 .

[0056] Specifically, the tube cover 4 in this embodiment includes a cover body 41 and a flip cover 42 that is flipped relative to the cover body 41. The cover body 41 is snap-fitted to the tube head 3, and the flip cover 42 is pivotally attached to the cover body 41 via a rotating mechanism, thereby preventing the tube cover 4 from being easily lost during solution extraction. The cover body 41 is provided with a first drip hole 413 and a second drip hole 414 that communicate with the first and second liquid outlet channels 311 and 321, respectively. The two solutions in the two outlet channels flow out through their respective drip holes, ensuring that they circulate independently before being extruded to their target locations, preventing mixing and contamination.

[0057] In the embodiments of the present invention, please refer to Figure 8 and Figure 9 The flip cover 42 and the cover body 41 are connected by a hinge. In this way, the flip cover 42 can be flipped relative to the cover body 41 through the hinge, which facilitates the flip cover 42 to use the solutions in the first liquid storage chamber 11 and the second liquid storage chamber 21 and seal the first drip hole 413 and the second drip hole 414. In this way, even if the double-tube container 100 is placed at any angle, the solution will not be leaked.

[0058] In the embodiments of the present invention, please refer to Figures 8 to 10 The cover body 41 is provided with a first sealing ring 415, which extends toward the direction of the tube head 3 and has a through second drip hole 414 therein, and the first sealing ring 415 is inserted into the interior of the mounting boss 32, so that the outer wall of the sealing ring abuts against the inner wall of the mounting boss 32, thereby achieving a sealing effect between the cover body 41 and the tube head 3 for the second solution in the second liquid storage chamber 21, and preventing the second solution of the inner tube 2 from being connected in series to the outer tube 1.

[0059] In the embodiments of the present invention, please refer to Figure 8 The first sealing ring 415 extends toward the flip cover 42, and a second sealing ring is provided on the side of the flip cover 42 facing the cover body 41. When the flip cover 42 is closed with the cover body 41, the second sealing ring can extend and be inserted into the interior of the first sealing ring 415, so that the outer wall of the second sealing ring abuts against the inner wall of the first sealing ring 415, thereby achieving a sealing effect on the second drip hole 414.

[0060] In the embodiments of the present invention, please refer to Figure 8 and Figure 10The cover body 41 is further provided with a liquid outlet bin 416 , which is protruding from the side of the cover body 41 facing the flip cover 42 , and the first sealing ring 415 and the first drip hole 413 are both provided inside the liquid outlet bin 416 . Since the outer diameter of the outer tube 1 is larger than the outer diameter of the inner tube 2, in order to smoothly drain the solution in the first liquid storage chamber 11, the first liquid outlet channel 311 is arranged outside the second liquid outlet channel 321. In order to smoothly communicate with the first liquid outlet channel 311, the first drip hole 413 is arranged along the outside of the second drip hole 414. Therefore, a liquid outlet bin 416 is provided on the outer periphery of the first sealing ring 415 on the cover body 41, so that the first solution in the first liquid outlet channel 311 flows out through the first drip hole 413 and reaches the liquid outlet bin 416 to achieve liquid discharge, and the second solution in the second liquid outlet channel 321 flows out through the second drip hole 414 to achieve liquid discharge. That is, the two solutions in the inner tube 2 and the outer tube 1 flow out from the cover body 41 together, which is convenient for mixing the two solutions.

[0061] In the embodiments of the present invention, please refer to Figure 8 and Figure 10 A third sealing ring is provided on the side of the flip cover 42 facing the cover body 41, and a second sealing ring is provided inside the third sealing ring. In addition, when the flip cover 42 is covered with the cover body 41, the third sealing ring is sleeved on the outer periphery of the liquid outlet bin 416, so that the inner wall of the third sealing ring abuts against the outer wall of the liquid outlet bin 416, thereby achieving a sealing effect on the first drip hole 413.

[0062] In the embodiments of the present invention, please refer to Figure 2 The outer wall of the flip cover 42 and / or the cover body 41 is provided with a notch 423. The notch 423 can be provided on the outer circumference of both the flip cover 42 and the cover body 41, or can be provided on one of them, so as to facilitate the user to flip the flip cover 42 and improve the user experience.

[0063] In an embodiment of the present invention, the outer tube 1, the inner tube 2 and the tube head 3 are integrally formed by injection molding, which can not only improve the processing and assembly efficiency, but also reduce the use of seals at the connection between the two components and reduce costs.

[0064] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A double-tube container, characterized in that: The double-tube container comprises: The outer tube has a first liquid storage cavity; an inner tube received in the outer tube, wherein the outer wall of the inner tube and the inner wall of the outer tube are spaced apart to form the first liquid storage cavity, and the interior of the inner tube forms a second liquid storage cavity; a pipe head fixedly mounted on one axial end of the outer tube and the inner tube, and provided with a first liquid outlet channel and a second liquid outlet channel, wherein the first liquid outlet channel is connected to the first liquid storage cavity, and the second liquid outlet channel is connected to the second liquid storage cavity; and The tube cover is detachably connected to the tube head and is used to open or close the first liquid outlet channel and the second liquid outlet channel.

2. The double-tube container according to claim 1, wherein: The tube head is provided with a mounting groove and a mounting boss. The mounting groove is arranged toward the tube cover so as to be embedded in the tube cover. The mounting boss is arranged inside the mounting groove. The first liquid outlet channel is formed between the outer wall of the mounting boss and the groove wall of the mounting groove. The second liquid outlet channel is formed inside the mounting boss.

3. The double-tube container according to claim 2, wherein: The outer periphery of the mounting groove is provided with a locking protrusion, the inner wall of the pipe cover is provided with a locking groove, and the locking protrusion is engaged in the locking groove; and / or, A limiting strip is provided on the outer periphery of the installation groove, a limiting groove is provided on the inner wall of the pipe cover, and the limiting strip is fixed in the limiting groove.

4. The double-tube container according to claim 2, wherein: The tube cover comprises: a cover body detachably connected to the tube head, the cover body being provided with a first dripping hole and a second dripping hole, the first dripping hole being connected to the first liquid outlet channel, and the second dripping hole being connected to the second liquid outlet channel; and The flip cover is flippably arranged on a side of the cover body away from the tube head.

5. The double-tube container according to claim 4, wherein: The cover body is provided with a first sealing ring, which extends toward the pipe head and has a through second drip hole provided therein, and an outer wall of the first sealing ring abuts against an inner wall of the mounting boss.

6. The double-tube container according to claim 5, wherein: The first sealing ring extends toward the flip cover. A second sealing ring is provided on a side of the flip cover facing the cover body, and an outer wall of the second sealing ring abuts against an inner wall of the first sealing ring.

7. The double-tube container according to claim 6, wherein: The cover body is further provided with a liquid outlet bin, which is convexly arranged on a side of the cover body facing the flip cover, and the first sealing ring and the first dripping hole are both arranged inside the liquid outlet bin.

8. The double-tube container according to claim 7, wherein: A third sealing ring is provided on the side of the flip cover facing the cover body, the inner wall of the third sealing ring abuts against the outer wall of the liquid outlet bin, and the second sealing ring is provided inside the third sealing ring.

9. The double-tube container according to any one of claims 4 to 7, characterized in that: The flip cover and the cover body are connected by a hinge; and / or, The outer wall of the flip cover and / or the cover body is provided with a notch.

10. The double-tube container according to any one of claims 1 to 8, characterized in that: The outer tube, the inner tube and the tube head are integrally formed.

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