Necking-down type barrel body structure

Abstract

The utility model discloses a necking-down type barrel body structure which comprises a barrel body and a barrel cover, a barrel neck is arranged on the barrel body, the barrel neck is composed of an inner layer and an outer layer, the upper end of the inner layer is connected with the upper end of the outer layer through an arc-shaped portion, and a thread portion is arranged on the outer layer. A threaded hole matched with the threaded part is formed in the inner wall of the barrel cover, a pushing ring and a sealing column are arranged in the middle of the barrel cover, a plurality of elastic bodies extending towards the middle are arranged on the inner layer, the barrel cover is installed on the barrel neck, the pushing ring is kept pushing the elastic bodies, and the elastic bodies are kept close to the middle. According to the necking-down type barrel body structure, the barrel neck is of a double-layer structure, the sealing performance of the whole barrel body can be improved, it can be guaranteed that when objects are poured out during use, the objects are limited by the elastic body, too many objects cannot be poured out, and the practicability of the whole barrel body is improved.

Description

Technical Field

[0001] The utility model relates to the technology of barrel bodies, and particularly to a necked-in barrel body structure. Background Art

[0002] Necked-in barrels are one of the commonly used material storage tools in industries such as pharmaceuticals, food, and chemicals, and can be used to improve the sealing performance of the contained items. Barrels made of relatively hard glass materials are relatively expensive, easy to break, and difficult to manufacture. Enzyme barrels made of plastic are prone to deformation and combustion when heated, and their structures and functions are too single, making them inconvenient to use. Their sealing performance is average, and when pouring out items, it is easy to pour out a relatively large amount of items at one time, resulting in contamination of the internal items. Content of the Utility Model

[0003] In order to solve the defects existing in the above-mentioned prior art, the utility model provides a necked-in barrel body structure.

[0004] The technical solution of the utility model is realized as follows:

[0005] A necked-in barrel body structure includes a barrel body and a barrel cover. It is characterized in that a barrel neck is provided on the barrel body. The barrel neck consists of an inner layer and an outer layer. The upper ends of the inner layer and the outer layer are connected by an arc portion. A threaded portion is provided on the outer layer.

[0006] A threaded hole matching the threaded portion is provided on the inner wall of the barrel cover. A pushing ring and a sealing column are provided in the middle of the barrel cover. Multiple elastic bodies extending towards the middle are provided on the inner layer. When the barrel cover is installed on the barrel neck, the pushing ring is kept pushing the elastic bodies, and multiple elastic bodies are kept approaching the middle.

[0007] In this necked-in barrel body structure of the utility model, a sealing gasket is provided inside the barrel cover.

[0008] In this necked-in barrel body structure of the utility model, a convex portion extending towards the middle is provided on the inner layer.

[0009] In this necked-in barrel body structure of the utility model, the elastic body successively consists of a guiding section, an elastic section, and an arc section from top to bottom. An extending portion is provided at the lower end of the convex portion. The extending portion is connected to the arc section. The guiding section and the elastic section are connected by a bending section. The bending section contacts the convex portion.

[0010] In this necked-in barrel body structure of the utility model, a first retracting and extending area is formed among multiple guiding sections, and a second retracting and extending area is formed among multiple arc sections. The diameter of the first retracting and extending area is larger than the diameter of the second retracting and extending area.

[0011] Implementing this necked-in barrel body structure of the utility model has the following beneficial effects: By adopting a double-layer structure at the barrel neck, this necked-in barrel body structure can not only improve the sealing performance of the entire barrel body, but also ensure that when pouring out items during use, it is restricted by the elastic body and too many items will not be poured out, thus improving the practicability of the entire barrel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. is a schematic structural diagram of the necked-in barrel body structure of the utility model;

[0013] Figure 2 is Figure 1 the top view of;

[0014] Figure 3 is Figure 2 the sectional view taken along line A-A in;

[0015] Figure 4 is Figure 3 the schematic structural diagram of the barrel cover in;

[0016] Figure 5 is Figure 3 the schematic structural diagram of the barrel neck in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model.

[0018] As Figures 1 to 5 shown, this necked-in barrel body structure of the utility model includes a barrel body 1 and a barrel cover 2. A barrel neck 3 is provided on the barrel body 1. The barrel neck 3 is composed of an inner layer 4 and an outer layer 5. The upper ends of the inner layer 4 and the outer layer 5 are connected by an arc portion 6. A threaded portion 7 is provided on the outer layer 5. The barrel cover 2 is installed through the threaded portion 7.

[0019] Multiple elastic bodies 8 extending towards the middle are provided on the inner layer 4. When the barrel cover 2 is installed on the barrel neck 3, the pushing ring 9 is maintained to push the elastic bodies 8, and multiple elastic bodies 8 are maintained to move closer to the middle. A convex portion 10 extending towards the middle is provided on the inner layer 4.

[0020] A threaded hole 11 matching the threaded portion 7 is provided on the inner wall of the barrel cover 2. A pushing ring 9 and a sealing column 12 are provided in the middle of the barrel cover 2. The pushing ring 9 is used to push the elastic bodies 8 on the inner layer 4. A sealing gasket 13 is provided inside the barrel cover 2. The sealing gasket 13 is used to improve the sealing performance of the entire barrel body 1.

[0021] The elastic body 8 is sequentially composed of a guiding section 14, an elastic section 15, and an arc section 16 from top to bottom. An extension portion 17 is provided at the lower end of the convex portion 10. The extension portion 17 is connected to the arc section 16. The guiding section 14 and the elastic section 15 are connected by a bending section 18. The bending section 18 contacts the convex portion 10.

[0022] A first retractable area 19 is formed in the middle of multiple guiding sections 14, and a second retractable area 20 is formed in the middle of multiple arc-shaped sections 16. The diameter of the first retractable area 19 is larger than the diameter of the second retractable area 20.

[0023] After the barrel body 1 is installed on the barrel neck 3, the pushing ring 9 can push the guiding section 14 on the elastic body 8 to move closer to the middle, so that the first retractable area 19 shrinks. And the sealing column 12 is inserted into the first retractable area 19, so that the guiding section 14 approaches and contacts the sealing column 12. The sealing column 12 is made of a relatively soft material, such as rubber, while the barrel cover 2 can be made of a relatively hard material. This can not only improve the sealing performance of the entire barrel body 1, but also ensure that when pouring out items during use, it is restricted by the elastic body 8 and too many items will not be poured out, improving the practicability of the entire barrel body 1.

[0024] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A necked barrel structure, comprising a barrel body and a barrel cover, characterized in that: The barrel body is provided with a barrel neck, which is composed of an inner layer and an outer layer. The upper ends of the inner layer and the outer layer are connected by an arc portion, and the outer layer is provided with a threaded portion. The inner wall of the barrel cover is provided with a threaded hole that cooperates with the threaded part, the middle of the barrel cover is provided with a push ring and a sealing column, the inner layer is provided with multiple elastomers extending toward the middle, and the barrel cover is installed on the barrel neck to keep the push ring pushing the elastomer and keep the multiple elastomers close to the middle.

2. The necked barrel structure according to claim 1, characterized in that: A sealing gasket is arranged inside the barrel cover.

3. The necked barrel structure according to claim 1, characterized in that: The inner layer is provided with a protrusion extending toward the middle.

4. The necked barrel structure according to claim 3, characterized in that: The elastic body is composed of a guide section, an elastic section and an arc section from top to bottom. An extension section is provided at the lower end of the protrusion, and the extension section is connected to the arc section. The guide section and the elastic section are connected through a curved section, and the curved section is in contact with the protrusion.

5. The necked barrel structure according to claim 4, characterized in that: A first retractable area is formed in the middle of the plurality of guide segments, and a second retractable area is formed in the middle of the plurality of arc segments. The diameter of the first retractable area is greater than the diameter of the second retractable area.

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