CN214493715U - Double-layer container with replaceable inner bottle - Google Patents

Abstract

The utility model provides a double-layer container capable of replacing an inner bottle, which relates to the field of containers and comprises an outer bottle, a shoulder sleeve and an inner bottle with a bottle cap; the outer peripheral surface of the inner bottle or the outer peripheral surface of the bottle cap is provided with a clamping bulge, the inner peripheral surface of the top end of the outer bottle is provided with a clamping groove, and a notch of the clamping groove extends to the top end surface of the outer bottle; the inner bottle is arranged in the outer bottle, and the clamping bulge is limited in the clamping groove; the shoulder sleeve comprises an annular support body and a flange which is arranged at the top of the annular support body and extends towards the interior of the annular support body; the annular support body is sleeved outside the top end of the outer bottle, and the annular support body is configured to rotate relative to the outer bottle, so that under a first working condition, the flange shields the top of the clamping and fixing bulge, and under a second working condition, the flange staggers the top of the clamping and fixing bulge. The utility model discloses having alleviated bilayer structure bottle container among the prior art, interior bottle is as an organic whole structure with outer bottle, and when the interior fluid of bottle exhaust the back, can only abandon whole bottle container, cause the technical problem of wasting of resources.

Description

Double-layer container with replaceable inner bottle

Technical Field

The utility model belongs to the technical field of the container and specifically relates to a can replace double container of interior bottle.

Background

At present, for keeping warm or prolonging its quality validity period to the inside fluid of bottle container, avoid inside fluid to deteriorate, often can use the bottle container that has interior bottle and outer bottle bilayer structure, however, among the prior art, do as an organic whole structure with interior bottle and outer bottle mostly, after the fluid in the bottle exhausts, can only abandon whole bottle container, cause the wasting of resources.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can replace double-deck container of interior bottle can alleviate the double-deck structure bottle container that exists among the prior art at least, and interior bottle is as an organic whole structure with outer bottle, and when the interior fluid exhaust of bottle, can only abandon whole bottle container, causes the technical problem of wasting of resources.

In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:

the embodiment of the utility model provides a double-layer container capable of replacing an inner bottle, which comprises an outer bottle, a shoulder sleeve and an inner bottle with a bottle cap connected at the top end;

a clamping bulge is arranged on the outer peripheral surface of the inner bottle or the outer peripheral surface of the bottle cap, a clamping groove is arranged on the inner peripheral surface of the top end of the outer bottle, and a notch of the clamping groove extends to the top end surface of the outer bottle; the inner bottle is arranged inside the outer bottle, and the clamping and fixing bulge is limited inside the clamping and fixing groove;

the shoulder sleeve comprises an annular support body and a flange arranged at the top of the annular support body and extending towards the interior of the annular support body; the annular support body is sleeved outside the top end of the outer bottle, and the annular support body is configured to rotate relative to the outer bottle, so that the flange shields the top of the clamping and fixing bulge under a first working condition, and the flange is staggered with the top of the clamping and fixing bulge under a second working condition.

In an alternative embodiment, a rotational positioning structure is provided between the inner circumferential surface of the ring-shaped support and the top outer circumferential surface of the outer bottle; the rotary positioning structure is configured to be capable of positioning the ring support to the outer bottle in the first operating condition and the second operating condition, respectively.

In an alternative embodiment, the rotational positioning structure comprises a first longitudinal rib, a second longitudinal rib, a third longitudinal rib, and a fourth longitudinal rib;

the first longitudinal convex rib and the second longitudinal convex rib are fixedly connected to the peripheral surface of the top end of the outer bottle at intervals; the third longitudinal convex rib and the fourth longitudinal convex rib are fixedly connected to the inner circumferential surface of the annular supporting body at intervals;

under the first working condition, the first longitudinal convex rib is clamped between the third longitudinal convex rib and the fourth longitudinal convex rib, and under the second working condition, the second longitudinal convex rib is clamped between the third longitudinal convex rib and the fourth longitudinal convex rib.

In an optional embodiment, the rotational positioning structure further comprises a limiting groove and a transverse convex rib;

the outer peripheral surface of the top of the outer bottle comprises a concave surface which is concave towards the inside of the outer bottle, and the first longitudinal convex rib and the second longitudinal convex rib are both arranged on the concave surface;

the limiting groove is arranged on the outer peripheral surface of the top of the outer bottle except the position of the concave surface and extends along the radial circumferential direction of the outer bottle; the transverse convex rib is arranged on the inner circumferential surface of the annular support body and extends along the radial circumferential direction of the annular support body;

the horizontal convex rib is clamped in the limit groove, and the horizontal convex rib and the limit groove are configured into: under the condition that the annular supporting body rotates relative to the outer bottle, the transverse convex rib slides in the limiting groove.

In an alternative embodiment, a plurality of protrusions are intermittently provided on the top surface of the lateral bead or the bottom surface of the lateral bead.

In an alternative embodiment, the rotational positioning structure includes a first rotational positioning structure and a second rotational positioning structure, and the first rotational positioning structure and the second rotational positioning structure are respectively disposed at two opposite positions on the outer circumferential surface of the outer bottle.

In an optional embodiment, the top of the side wall of the clamping groove is in transitional connection with the top end surface of the outer bottle through an arc surface or a guide inclined surface; and/or, the side surface of the clamping protrusion is in transition connection with the bottom surface of the clamping protrusion through an arc surface or a guide inclined surface, wherein the expression of 'and/or' means that 'the top of the side wall of the clamping groove is in transition connection with the top end surface of the outer bottle through an arc surface or a guide inclined surface' and 'the side surface of the clamping protrusion is in transition connection with the bottom surface of the clamping protrusion through an arc surface or a guide inclined surface' are arranged at the same time or alternatively.

In an alternative embodiment, the top surface of the catching protrusion includes a circular arc surface or a guide slope.

In an alternative embodiment, the inner circumferential surface of the bottle cap and the outer circumferential surface of the top end of the inner bottle are connected through threads.

In an alternative embodiment, the double-layer container of the replaceable inner bottle further comprises a pump core, a gland and a liquid outlet pipe;

the pump core install in interior bottle top, just the feed liquor end of pump core stretch into in the inside of interior bottle, the gland connect in the bottle lid and with the splenium of pump core is connected, the drain pipe install in the gland and with the liquid outlet of pump core is connected.

The embodiment of the utility model provides a can realize following beneficial effect:

the embodiment of the utility model provides a double-layer container capable of replacing an inner bottle, which comprises an outer bottle, a shoulder sleeve and an inner bottle with a bottle cap connected at the top end; the outer peripheral surface of the inner bottle or the outer peripheral surface of the bottle cap is provided with a clamping bulge, the inner peripheral surface of the top end of the outer bottle is provided with a clamping groove, and a notch of the clamping groove extends to the top end surface of the outer bottle; the inner bottle is arranged inside the outer bottle, and the clamping bulge is limited inside the clamping groove; the shoulder sleeve comprises an annular support body and a flange which is arranged at the top of the annular support body and extends towards the interior of the annular support body; the annular support body is sleeved outside the top end of the outer bottle, and the annular support body is configured to rotate relative to the outer bottle, so that under a first working condition, the flange shields the top of the clamping and fixing bulge, and under a second working condition, the flange staggers the top of the clamping and fixing bulge.

During the use, through the annular support body of rotating the shoulder cover, can change the relative solid bellied position of card of flange to under reaching first operating mode, the flange shelters from the solid bellied top of card, in order to be fixed in outer bottle with interior bottle, and, under the second operating mode, the flange staggers the solid bellied top of card, so that interior bottle can break away from in the function of outer bottle, and then, can realize changing the effect of interior bottle at any time.

The embodiment of the utility model provides a can replace interior bottle formula double container simple structure, the interior bottle of replacement is convenient, has effectively alleviated the double structure bottle container that exists among the prior art, and interior bottle is as an organic whole structure with outer bottle, and when the interior fluid of bottle use up the back, can only abandon whole bottle container, cause the technical problem of wasting of resources.

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 technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an axonometric view of the overall structure of a double-layer container capable of replacing an inner bottle in a first working condition, which is provided by the embodiment of the invention;

fig. 2 is an axonometric view of the overall structure of a double-layer container with replaceable inner bottles in a second working condition according to an embodiment of the invention;

FIG. 3 is an exploded view of FIG. 2;

fig. 4 is a front cross-sectional view of a double-layered container capable of replacing an inner bottle according to an embodiment of the present invention under a first working condition;

fig. 5 is an isometric view of the overall structure of an outer bottle in an embodiment of the invention;

fig. 6 is an isometric view of the overall structure of the shoulder cap from a top view in an embodiment of the present invention;

fig. 7 is an isometric view of the overall structure of the shoulder brace from a bottom perspective in an embodiment of the invention;

fig. 8 is a schematic view of the overall structure of the bottle cap and gland assembly in an embodiment of the present invention;

fig. 9 is a schematic view of the overall structure of the bottle cap according to the embodiment of the present invention;

fig. 10 is a schematic view of the overall structure of the gland in the embodiment of the present invention;

fig. 11 is a schematic view of an overall structure of the lower cover at another viewing angle according to an embodiment of the present invention.

Icon: 1-outer bottle; 10-a concave surface; 11-a clamping groove; 12-a first longitudinal bead; 13-a second longitudinal bead; 14-a limiting groove; 2-shoulder sleeve; 21-a ring support; 211-a third longitudinal bead; 212-a fourth longitudinal bead; 213-transverse ribs; 2130-raised portions; 22-a flange; 3-inner bottle; 4-bottle cap; 41-a clamping and fixing bulge; 42-jack post; 5-pump core; 6-pressing the cover; 61-pin; 7-liquid outlet pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "top", "bottom", "horizontal", "longitudinal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. In this embodiment, "top" and "upper" refer to the container being upright, i.e., the top or upper end of the body with the lower cap on top, and "bottom" and "lower" refer to the container being upright, i.e., the bottom or lower end of the body with the lower cap on top.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "transverse," "longitudinal," and the like do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "transverse" merely means that the direction is more horizontal than "longitudinal" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 to 11, the present embodiment provides a double container capable of replacing an inner bottle, and particularly, referring to fig. 1 to 4, includes an outer bottle 1, a shoulder cap 2, and an inner bottle 3 having a cap 4 attached to the top thereof.

More specifically, referring to fig. 3, 8 and 9, a catching protrusion 41 is provided on the outer circumferential surface of the inner bottle 3 or the outer circumferential surface of the cap 4, and referring to fig. 3 and 5, a catching groove 11 is provided on the inner circumferential surface of the top end of the outer bottle 1, and the notch of the catching groove 11 extends to the top end surface of the outer bottle 1; the inner bottle 3 is disposed inside the outer bottle 1, and the fastening protrusion 41 is limited inside the fastening groove 11. The shoulder cap 2 comprises a ring-shaped support 21 and a flange 22 provided on top of the ring-shaped support 21 and extending toward the inside of the ring-shaped support 21; the ring support 21 is sleeved outside the top end of the outer bottle 1, and the ring support 21 is configured to be capable of rotating relative to the outer bottle 1, so that in a first working condition, referring to fig. 1 and 4, the flange 22 shields the top of the clamping protrusion 41 to fix the inner bottle to the outer bottle, and in a second working condition, referring to fig. 2 and 3, the flange 22 staggers the top of the clamping protrusion 41 to enable the inner bottle to be separated from the outer bottle.

The number of the locking projections 41, the locking grooves 11, and the flanges 22 is not limited, for example, one or more, preferably two, locking projections 41 may be provided on the outer circumferential surface of the inner bottle 3 or the outer circumferential surface of the cap 4, two locking grooves 11 may be provided adaptively, one or more, flanges 22 may be provided, and in the case where two locking projections 41 are provided on the outer circumferential surface of the inner bottle 3 or the outer circumferential surface of the cap 4, and two locking grooves 11 are provided adaptively, preferably two, flanges 22 may be provided adaptively.

In this embodiment, during the use, through the annular support body 21 of rotating shoulder cover 2, can change the relative card of flange 22 and fix the position of protruding 41 to reach under the first operating mode, flange 22 shelters from the top of the protruding 41 of card, in order to be fixed in outer bottle with interior bottle, and, under the second operating mode, flange 22 staggers the top of the protruding 41 of card, in order to make interior bottle can break away from in the function of outer bottle, and then, can realize the effect of changing interior bottle at any time.

The bottle convenience in bottle formula double-layer container in can replacing that this embodiment provided, the double-layer structure bottle container that exists among the prior art has effectively been alleviated to the bottle convenience in the replacement, and interior bottle is as an organic whole structure with outer bottle, and when the fluid in the bottle used up the back, can only abandon whole bottle container, causes the technical problem of wasting of resources.

In order to prevent the liquid in the inner bottle from leaking out due to the looseness between the inner bottle and the outer bottle during transportation, in some optional embodiments of the present embodiment, in the structure of the shoulder cap 2, a rotational positioning structure is further provided between the inner circumferential surface of the annular supporting body 21 and the outer circumferential surface of the top of the outer bottle 1; the rotary positioning structure is configured to be able to position the annular support body 21 to the outer bottle 1 in the first operating condition and the second operating condition, respectively. Alternatively, referring to fig. 5, 6 and 7, the rotational positioning structure includes a first longitudinal rib 12, a second longitudinal rib 13, a third longitudinal rib 211 and a fourth longitudinal rib 212. Specifically, as shown in fig. 5, the first longitudinal rib 12 and the second longitudinal rib 13 are fixedly connected to the outer peripheral surface of the top end of the outer bottle 1 at intervals; as shown in fig. 6 and 7, the third longitudinal rib 211 and the fourth longitudinal rib 212 are fixedly connected to the inner circumferential surface of the ring support 21 at an interval; under the first working condition, the first longitudinal convex rib 12 is clamped between the third longitudinal convex rib 211 and the fourth longitudinal convex rib 212, and under the second working condition, the second longitudinal convex rib 13 is clamped between the third longitudinal convex rib 211 and the fourth longitudinal convex rib 212. In operation, the rotation in place can be determined by a slight "click" like sound generated by the first longitudinal bead 12 and the second longitudinal bead 13 interfering with each other when entering and leaving between the third longitudinal bead 211 and the fourth longitudinal bead 212, respectively, and a slight feel felt by the user.

Further alternatively, the central angle corresponding to the connecting line between the first longitudinal rib 12 and the second longitudinal rib 13 is 44 degrees or 45 degrees or 46 degrees or any angle between 44 degrees and 46 degrees, preferably 45 degrees.

With continued reference to fig. 5, 6 and 7, in some alternative embodiments of the present embodiment, the rotational positioning structure further includes a limiting groove 14 and a transverse rib 213; specifically, referring to fig. 5, the top peripheral surface of the outer bottle 1 includes a recessed surface 10 recessed toward the inside of the outer bottle 1, and a first longitudinal bead 12 and a second longitudinal bead 13 are both provided on the recessed surface 10; the limiting groove 14 is arranged on the outer peripheral surface of the top of the outer bottle 1 except the position of the concave surface 10 and extends along the radial circumferential direction of the outer bottle 1; referring to fig. 6 and 7, the lateral ribs 213 are provided on the inner peripheral surface of the ring support 21 and extend in the radial circumferential direction of the ring support 21; the transverse rib 213 is engaged in the limit groove 14, and the transverse rib 213 and the limit groove 14 are configured as follows: under the relative outer bottle 1 pivoted condition of annular support body 21, horizontal protruding muscle 213 slides in the inside of spacing groove 14 to, can further strengthen rotational stability, further strengthen simultaneously feeling, be favorable to judging fast whether shoulder cover 2 rotates to the right place.

With continued reference to fig. 6 and 7, further alternatively, a plurality of protrusions 2130 are intermittently provided on the top surface of the transverse rib 213 or the bottom surface of the transverse rib 213, so as to reduce the friction between the transverse rib 213 and the wall surface of the groove body of the limit groove 14 and improve the rotational fluency of the shoulder strap 2.

In a preferred embodiment of this embodiment, the rotational positioning structure at least includes a first rotational positioning structure and a second rotational positioning structure, the first rotational positioning structure and the second rotational positioning structure are respectively disposed at two opposite positions on the outer circumferential surface of the outer bottle 1, and the specific arrangement form and the arrangement position of the first rotational positioning structure and the second rotational positioning structure refer to the above-mentioned optional embodiments.

As shown in fig. 5, in an alternative embodiment of this embodiment, the top of the sidewall of the locking groove 11 is transitionally connected with the top end surface of the outer bottle 1 through an arc surface or a guide inclined surface; alternatively, as shown in fig. 8, the side surface of the fastening protrusion 41 and the bottom surface of the fastening protrusion 41 are in transitional connection through an arc surface or a guide inclined surface; alternatively, with continued reference to fig. 8, the top surface of the retaining projection 41 includes a circular arc surface or a guide slope; above structure all is favorable to carrying out fast assembly to interior bottle 3 and outer bottle 1, and especially the top surface of the card solid arch 41 includes arc surface or direction inclined plane, will be favorable to promoting the rotational fluency of the annular support body 21 of shoulder cover 2.

In an alternative embodiment of this embodiment, the inner circumferential surface of the bottle cap 4 is screwed to the outer circumferential surface of the top end of the inner bottle 3.

In addition, referring to fig. 8, 9 and 10 in combination with fig. 1 to 4, in some alternative embodiments of the present embodiment, the double container capable of replacing the inner bottle further includes a pump core 5, a gland 6 and a liquid outlet pipe 7; the pump core 5 is arranged at the top of the inner bottle 3, the liquid inlet end of the pump core 5 extends into the inner bottle 3, the gland 6 is connected with the bottle cap 4 and is connected with the pressing part of the pump core 5, and the liquid outlet pipe 7 is arranged on the gland 6 and is connected with the liquid outlet of the pump core 5; therefore, the liquid can be drawn by pressing the pressing cover 6, which has the advantage of convenient use, wherein, preferably, but not limited to, as shown in fig. 9, the insertion hole column 42 with the insertion hole is provided inside the bottle cap 4, as shown in fig. 10 and 11, the plug pins 61 are provided inside the pressing cover 6, and the pressing cover 6 is connected with the bottle cap 4 in a manner that the plug pins 61 are inserted into the insertion holes of the insertion hole column 42.

Finally, it should be noted that: the embodiments in the present description are all described in a progressive manner, each embodiment focuses on the differences from the other embodiments, and the same and similar parts among the embodiments can be referred to each other; the above embodiments in the present specification are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A double-layer container with a replaceable inner bottle is characterized by comprising an outer bottle (1), a shoulder sleeve (2) and the inner bottle (3) of which the top end is connected with a bottle cap (4);

a clamping protrusion (41) is arranged on the outer peripheral surface of the inner bottle (3) or the outer peripheral surface of the bottle cap (4), a clamping groove (11) is arranged on the inner peripheral surface of the top end of the outer bottle (1), and a notch of the clamping groove (11) extends to the top end surface of the outer bottle (1); the inner bottle (3) is arranged inside the outer bottle (1), and the clamping and fixing bulge (41) is limited inside the clamping and fixing groove (11);

the shoulder sleeve (2) comprises an annular support body (21) and a flange (22) arranged on top of the annular support body (21) and extending towards the inside of the annular support body (21); the annular supporting body (21) is sleeved outside the top end of the outer bottle (1), and the annular supporting body (21) is configured to be capable of rotating relative to the outer bottle (1), so that the flange (22) shields the top of the clamping protrusion (41) under a first working condition, and the flange (22) is staggered with respect to the top of the clamping protrusion (41) under a second working condition.

2. The double container of replaceable inner bottle as claimed in claim 1, wherein a rotational positioning structure is provided between an inner circumferential surface of the ring-shaped support (21) and a top outer circumferential surface of the outer bottle (1); the rotary positioning structure is configured to be able to position the toroidal support (21) to the outer bottle (1) in the first operating condition and in the second operating condition, respectively.

3. The double-layered container capable of replacing an inner bottle according to claim 2,

the rotary positioning structure comprises a first longitudinal convex rib (12), a second longitudinal convex rib (13), a third longitudinal convex rib (211) and a fourth longitudinal convex rib (212);

the first longitudinal convex rib (12) and the second longitudinal convex rib (13) are fixedly connected to the outer peripheral surface of the top end of the outer bottle (1) at intervals; the third longitudinal convex rib (211) and the fourth longitudinal convex rib (212) are fixedly connected to the inner circumferential surface of the annular supporting body (21) at intervals;

under the first working condition, the first longitudinal convex rib (12) is clamped between the third longitudinal convex rib (211) and the fourth longitudinal convex rib (212), and under the second working condition, the second longitudinal convex rib (13) is clamped between the third longitudinal convex rib (211) and the fourth longitudinal convex rib (212).

4. The double-layered container capable of replacing an inner bottle according to claim 3,

the rotary positioning structure also comprises a limiting groove (14) and a transverse convex rib (213);

the outer peripheral surface of the top of the outer bottle (1) comprises a concave surface (10) which is concave towards the inside of the outer bottle (1), and the first longitudinal convex rib (12) and the second longitudinal convex rib (13) are arranged on the concave surface (10);

the limiting groove (14) is arranged on the outer peripheral surface of the top of the outer bottle (1) except the position of the concave surface (10) and extends along the radial circumferential direction of the outer bottle (1); the transverse convex rib (213) is arranged on the inner circumferential surface of the annular support body (21) and extends along the radial circumferential direction of the annular support body (21);

the transverse convex rib (213) is clamped in the limit groove (14), and the transverse convex rib (213) and the limit groove (14) are configured as follows: under the condition that the annular supporting body (21) rotates relative to the outer bottle (1), the transverse convex rib (213) slides in the limiting groove (14).

5. The double container of replaceable inner bottle as claimed in claim 4, wherein a plurality of protrusions (2130) are intermittently provided on the top surface of the lateral rib (213) or the bottom surface of the lateral rib (213).

6. The double-layered container capable of replacing an inner bottle according to any one of claims 2 to 5, wherein the rotational positioning structure comprises a first rotational positioning structure and a second rotational positioning structure, and the first rotational positioning structure and the second rotational positioning structure are respectively provided at two opposite positions on the outer circumferential surface of the outer bottle (1).

7. The double-layered container capable of replacing an inner bottle according to claim 1,

the top of the side wall of the clamping groove (11) is in transitional connection with the top end face of the outer bottle (1) through an arc surface or a guide inclined surface;

and/or the side surface of the clamping and fixing bulge (41) is in transitional connection with the bottom surface of the clamping and fixing bulge (41) through an arc surface or a guide inclined surface.

8. The double-layered container capable of replacing an inner bottle as set forth in claim 1, wherein the top surface of the catching projection (41) comprises a circular arc surface or a guide slope.

9. The double-layered container capable of replacing an inner bottle according to claim 1, wherein the inner circumferential surface of the bottle cap (4) is screw-coupled to the outer circumferential surface of the top end of the inner bottle (3).

10. The double-layered container capable of replacing an inner bottle according to claim 1,

the double-layer container capable of replacing the inner bottle further comprises a pump core (5), a gland (6) and a liquid outlet pipe (7);

pump core (5) install in interior bottle (3) top, just the feed liquor end of pump core (5) stretch into in the inside of interior bottle (3), gland (6) connect in bottle lid (4) and with the portion of pressing of pump core (5) is connected, drain pipe (7) install in gland (6) and with the liquid outlet of pump core (5) is connected.

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