Double-layer aluminum bottle body

Abstract

The utility model relates to a bottle body, in particular to a double-layer aluminum bottle body which comprises an outer bottle body and an inner bottle body, a screw cap is connected to a bottle opening of the outer bottle body, the inner bottle body is arranged inside the outer bottle body, a plug cap is connected to a bottle opening of the inner bottle body, and the inner bottle body is connected with the outer bottle body in a sliding mode. The inner bottle body can slide to enable the bottle opening of the inner bottle body to extend out of the outer bottle body, and a cavity is formed by the inner wall of the outer bottle body and the outer wall of the inner bottle body. According to the double-layer aluminum bottle body disclosed by the utility model, the inner bottle body can be completely retracted into the outer bottle body.

Description

Technical Field

[0001] The utility model relates to a bottle body, in particular to a double-layer aluminum bottle body. Background Art

[0002] Double-layer aluminum bottles offer excellent moisture resistance and pressure resistance. Common double-layer bottles, such as those described in Chinese invention patent publication number CN118928962A, titled "Double-layer Bottle with Gradient Color," have a double-layer structure at the body and a single-layer structure at the mouth. This means the inner and outer layers share a cap, making the mouth of the double-layer bottle a weak point. To further enhance the performance of double-layer bottles, improvements to existing double-layer aluminum bottles are needed. Summary of the Invention

[0003] In order to overcome the deficiencies in the prior art and improve the overall performance of a double-layer bottle, the utility model provides a double-layer aluminum bottle body.

[0004] To achieve the above purpose, the utility model discloses a double-layer aluminum bottle, comprising

[0005] An outer bottle body, wherein the bottle mouth of the outer bottle body is connected to a screw cap;

[0006] An inner bottle body, the inner bottle body being arranged inside the outer bottle body, and a plug cap being connected to the bottle mouth of the inner bottle body;

[0007] The inner bottle body is slidably connected to the outer bottle body. The inner bottle body can slide until its bottle mouth extends out of the outer bottle body. The inner wall of the outer bottle body and the outer wall of the inner bottle body form a cavity.

[0008] Preferably, a first flange is provided on the outer wall of the inner bottle body, and a connecting column is provided on the first flange; a second flange is provided on the inner wall of the outer bottle body, and a guide hole is provided on the second flange, and the connecting column extends into the guide hole.

[0009] Preferably, a sleeve is provided at the bottom of the inner bottle body, and a stud is rotatably connected to the bottom of the outer bottle body. One end of the stud extends into the sleeve and is threadedly connected to the sleeve, and the other end of the stud extends to the outside of the outer bottle body and forms a screwing portion.

[0010] Preferably, the outer bottle body comprises a first half and a second half, the first half and the second half are fixed by screw connection, and sealing rings are provided on the mating surfaces of the first half and the second half.

[0011] Preferably, an annular reinforcing rib is provided on the inner wall of the outer bottle body.

[0012] The utility model has the following technical effects:

[0013] The double-layer aluminum bottle comprises an outer bottle body and an inner bottle body, and the outer bottle body and the inner bottle body form a double-layer structure. The inner bottle body is slidably arranged in the outer bottle body: when the liquid in the inner bottle body needs to be taken out, the bottle mouth of the inner bottle body is moved out of the outer bottle body; after the liquid is taken out, the bottle mouth of the inner bottle body is retracted into the outer bottle body again; therefore, the entire double-layer bottle body has a double-layer structure; at the same time, a plug cover and a screw cap are respectively provided at the bottle mouth of the inner bottle body and the bottle mouth of the outer bottle body, so that the sealing performance is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural sectional view of the utility model;

[0016] Figure 3 Schematic diagram of the structure of the inner bottle body;

[0017] Figure 4 Schematic diagram of the structure of the connection between the first half and the second half.

[0018] In the figure, 1. outer bottle body; 2. screw cap; 3. inner bottle body; 4. plug cap; 5. cavity; 6. first flange; 7. connecting column; 8. second flange; 9. guide hole; 10. sleeve; 11. stud; 12. first half; 13. second half; 14. reinforcing rib. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with embodiments; the examples are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] A double-layer aluminum bottle comprises an outer bottle 1 and an inner bottle 3. The outer bottle 1 and the inner bottle 3 are both made of aluminum, are light in weight, and are easy to carry.

[0021] The mouth of the outer bottle body 1 is connected to a screw cap 2 via a threaded connection, and the mouth of the inner bottle body 3 is connected to a plug cap 4. The inner bottle body 3 is disposed within the outer bottle body 1, and the outer bottle body 1 and the inner bottle body 3 are slidably connected, allowing the inner bottle body 3 to slide up and down along the axis of the outer bottle body 1. The inner bottle body 3 slides upward to extend its mouth outside the outer bottle body 1, and slides downward to completely retract its mouth into the outer bottle body 1. The inner wall of the outer bottle body 1 and the outer wall of the inner bottle body 3 form a cavity 5, and an annular reinforcing rib 14 is provided on the inner wall of the outer bottle body 1. The cavity 5 provides space for the reinforcing rib 14; the reinforcing rib 14 is distributed along the axis of the outer bottle body 1 and can increase the pressure resistance of the outer bottle body 1.

[0022] Specifically, the inner bottle body 3 realizes the sliding function in the following manner: a first flange 6 is provided on the outer wall of the inner bottle body 3, a connecting column 7 is provided on the first flange 6, the first flange 6 is fixed to the outer wall of the inner bottle body 3 by welding, and the connecting column 7 is fixed to the first flange 6 by welding; a second flange 8 is provided on the inner wall of the outer bottle body 1, the second flange 8 is fixedly connected to the inner wall of the outer bottle body 1 by welding, and a through guide hole 9 is provided on the second flange 8; the connecting column 7 extends to the bottom of the inner bottle body 3 into the guide hole 9, and the connecting column 7 and the guide hole 9 cooperate to limit the circumferential rotation of the inner bottle body 3, so that it can only move axially but not rotate circumferentially. A sleeve 10 is fixed to the bottom of the inner bottle body 3 by welding, and the interior of the sleeve 10 is provided with an internal thread; a stud 11 is rotatably connected to the bottom of the outer bottle body 1, and the stud 11 is connected to the outer bottle body 1 by a retaining ring. The stud 11 is divided into a threaded portion and a polished rod portion, and the threaded portion and the polished rod portion are located at both ends of the stud 11. The end provided with the threaded portion extends into the sleeve 10 and is screwed to the sleeve 10, and the end provided with the polished rod portion extends to the outside of the outer bottle body 1 and forms a screwing portion. In this embodiment, the screwing portion is a hexagonal groove, which facilitates the use of an inner hexagonal wrench to rotate the stud 11, thereby driving the inner bottle body 3 to move up and down. In order to ensure the sealing between the polished rod portion and the outer bottle body 1, a rotating sealing ring is provided at the connection between the polished rod portion and the outer bottle body 1.

[0023] To facilitate assembly of the outer bottle body 1 and the inner bottle body 3, as well as processing of the outer bottle body 1, in this embodiment, the outer bottle body 1 is not integrally formed, but rather is split. Specifically, the outer bottle body 1 comprises a first half 12 and a second half 13. The joint between the first half 12 and the second half 13 is provided with external and internal threads, and the first and second halves 12, 13 are secured together by a screw connection. Similarly, to ensure a tight seal between the first and second halves 12, 13, sealing rings are provided on the mating surfaces of the first and second halves 12, 13.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A double-layer aluminum bottle, characterized in that: include An outer bottle body (1), wherein a screw cap (2) is connected to the bottle mouth of the outer bottle body (1); An inner bottle body (3), the inner bottle body (3) being arranged inside the outer bottle body (1), and a plug cover (4) being connected to the bottle mouth of the inner bottle body (3); The inner bottle body (3) is slidably connected to the outer bottle body (1), and the inner bottle body (3) can slide until its bottle mouth extends into the outer bottle body (1). The inner wall of the outer bottle body (1) and the outer wall of the inner bottle body (3) form a cavity (5).

2. The double-layer aluminum bottle according to claim 1, characterized in that: A first flange (6) is provided on the outer wall of the inner bottle body (3), and a connecting column (7) is provided on the first flange (6); a second flange (8) is provided on the inner wall of the outer bottle body (1), and a guide hole (9) is provided on the second flange (8), and the connecting column (7) extends into the guide hole (9).

3. The double-layer aluminum bottle according to claim 2, characterized in that: The bottom of the inner bottle body (3) is provided with a sleeve (10), and the bottom of the outer bottle body (1) is rotatably connected with a stud (11), one end of the stud (11) extends into the sleeve (10) and is screwed to the sleeve (10), and the other end of the stud (11) extends to the outside of the outer bottle body (1) and forms a screwing portion.

4. The double-layer aluminum bottle according to claim 3, characterized in that: The outer bottle body (1) comprises a first half (12) and a second half (13), wherein the first half (12) and the second half (13) are fixed by screw connection, and a sealing ring is provided on the mating surfaces of the first half (12) and the second half (13).

5. The double-layer aluminum bottle according to claim 4, characterized in that: An annular reinforcing rib (14) is provided on the inner wall of the outer bottle body (1).

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