Anti-splashing funnel outer protective shell

Abstract

The utility model discloses an anti-splashing funnel outer protective shell which comprises a funnel, an outer protective shell body is arranged on the outer side of the funnel, the outer protective shell body comprises an outer shell body similar to the funnel, an annular blocking plate is arranged on the top of the outer shell body, a limiting supporting ring is arranged on the inner side of the outer shell body, and the limiting supporting ring is fixedly connected with the inner wall of the outer shell body. A plurality of strip-shaped air holes are formed in the limiting supporting ring, the annular plugging plate and the inner wall of the limiting supporting ring are obliquely designed, and a plurality of transversely-formed circular air holes are formed in the upper portion of the outer shell in a penetrating mode. The utility model has the advantages of not easy to cause splashing and better stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laboratory equipment, especially relates to a funnel outer protective shell of anti - splash. BACKGROUND

[0002] Funnel usually adopts simple conical or funnel shape design, has an open top for pouring material, and a gradually narrowing outlet for guiding material to the target container. Such funnel is usually made of plastic, metal or glass and other materials, which is simple in structure, convenient to operate and widely used in laboratory, kitchen, chemical industry and other fields. In the laboratory environment, the funnel is often used to pour powdery or granular material into the container, such as powder, granular material and the like.

[0003] The common funnel has obvious defects in the operation process. First, due to the lack of effective protection mechanism, when the material is poured into the container, the air inside the container is compressed to form a transient pressure, which causes part of the material to be pushed upward, not only easy to cause splash, but also may cause harm to the operator, and pollute the experimental environment. Secondly, the stability of the existing funnel is insufficient, especially when pouring heavy or highly fluid material, the funnel is easy to move or shake due to uneven stress, which further aggravates the risk of material splash. SUMMARY

[0004] The utility model discloses a funnel outer protective shell of anti - splash is provided to solve the problems, such as easy splash and insufficient stability, in the operation process of the common funnel.

[0005] The utility model discloses a funnel outer protective shell of anti - splash is provided to solve the problems, such as easy splash and insufficient stability, in the operation process of the common funnel.

[0006] Further, the circular air hole is located directly above the closed position between the two adjacent strip air holes.

[0007] Further, the strip air holes are arranged in opposite directions, and the area of the strip air hole is smaller than the surface area of the limiting support ring.

[0008] Further, the top of the funnel is clamped by the inner wall of the ring-shaped plugging plate.

[0009] Further, the middle of the funnel is clamped by the inner wall of the limiting support ring.

[0010] Further, the gap between the outer protective shell inner wall and the funnel outer wall forms an air flow chamber.

[0011] Further, the non-woven fabric is attached to the bottom of the limiting support ring.

[0012] Beneficial effects: the utility model discloses reasonable in design has the following beneficial effects:

[0013] 1, the utility model discloses a circular air hole and strip air hole are set up on the outer shell body, form an air flow chamber, when powder pours into experimental container, the air in container is compressed and forms instantaneous pressure, and the compressed gas will push partial powder and reverse upsurge, these upsurge powder is intercepted by non - woven fabric when reaching the air flow chamber, effectively prevent powder and splash out, thereby the safety of operator and the clean of experimental environment are protected,

[0014] 2, the utility model discloses the outer protective shell design, through setting annular plugging board, limiting support ring and strip air hole and circular air hole, effectively solved the powder splash problem of existing funnel in the operation process, and the oblique design of annular plugging board and limiting support ring can firmly hold the funnel, makes the funnel more stable in the process of adding material, thereby avoid the powder splash caused by the movement or shaking of funnel. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is the structure schematic view of the utility model;

[0016] Fig. 2 It is the partial structure sectional view of the utility model.

[0017] In the drawing: 1-funnel, 2-outer protective shell;

[0018] 21-outer shell body, 22-annular plugging board, 23-limiting support ring, 24-strip air hole, 25-circular air hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] Combined Figs. 1-2The shown anti-splashing funnel outer protective shell includes a funnel 1, and an outer protective shell 2 is arranged outside the funnel 1; the outer protective shell 2 includes a funnel-shaped outer shell body 21; an annular sealing plate 22 is arranged at the top of the outer shell body 21; a limiting support ring 23 is arranged inside the outer shell body 21; the limiting support ring 23 is fixedly connected with the inner wall of the outer shell body 21; a plurality of strip-shaped air holes 24 are arranged on the limiting support ring 23; the annular sealing plate 22 and the inner wall of the limiting support ring 23 are both designed to be inclined; and a plurality of circular air holes 25 are arranged in the upper portion of the outer shell body 21 and are arranged in a transverse manner.

[0021] The circular air hole 25 is located directly above the closed position between the two adjacent strip-shaped air holes 24.

[0022] The plurality of strip-shaped air holes 24 are arranged in opposite directions; the area of the strip-shaped air hole 24 is smaller than the surface area of the limiting support ring 23.

[0023] The upper portion of the funnel 1 is clamped by the inner wall of the annular sealing plate 22.

[0024] The middle portion of the funnel 1 is clamped by the inner wall of the limiting support ring 23.

[0025] The gap between the inner wall of the outer protective shell 2 and the outer wall of the funnel 1 forms an air flow chamber.

[0026] Non-woven fabric is attached to the bottom of the limiting support ring 23.

[0027] Working principle: in the use process, the funnel 1 is inserted into the outer protective shell 2, the inclined surface of the inner wall of the annular sealing plate 22 clamps the upper portion of the funnel 1, and the inclined surface of the inner wall of the limiting support ring 23 clamps the middle portion of the funnel 1; the outer shell body 21 is placed at the inlet of the experimental container; the powder is placed in the hopper of the funnel 1; the powder flows into the experimental container along the feeding hopper and the lower pipe; the air in the experimental container is compressed after the powder flows in; the instantaneous pressure is formed; the compressed gas pushes part of the powder to flow upward in the opposite direction; the upward flowing powder is lifted into the air flow chamber from the bottom of the outer shell body 21; when reaching the limiting support ring 23, the powder is intercepted by the non-woven fabric; the remaining air passes through the non-woven fabric and the strip-shaped air hole 24 and is discharged from the circular air hole 25.

[0028] It is obvious for those skilled in the art that the present application is not limited to the details of the above-mentioned exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0029] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A splash-proof outer protection shell for a funnel, comprising a funnel (1), characterized in that: The funnel (1) is externally provided with an outer protective shell (2), the outer protective shell (2) comprises a funnel-shaped outer shell (21), the outer shell (21) is provided with an annular sealing plate (22) at the top, the inner side of the outer shell (21) is provided with a limiting support ring (23), the limiting support ring (23) is fixedly connected with the inner wall of the outer shell (21), a plurality of strip-shaped air holes (24) are arranged on the limiting support ring (23), the annular sealing plate (22) and the inner wall of the limiting support ring (23) are designed to be inclined, and a plurality of circular air holes (25) are arranged in the upper part of the outer shell (21) in a transverse manner.

2. A splash guard according to claim 1, wherein: The circular air hole (25) is located directly above the closed position between two adjacent strip-shaped air holes (24).

3. A spill-resistant, outer hopper guard shell according to claim 2, wherein: The plurality of strip-shaped air holes (24) are arranged in opposite directions, and the area of the strip-shaped air hole (24) is smaller than the surface area of the limiting support ring (23).

4. A spill-resistant hopper outer guard shell according to claim 3, wherein: The near-top position of the funnel (1) is clamped by the inner wall of the annular sealing plate (22).

5. A splash guard according to claim 4, wherein: The middle position of the funnel (1) is clamped by the inner wall of the limiting support ring (23).

6. A splash guard according to claim 5, wherein: The gap between the inner wall of the outer protective shell (2) and the outer wall of the funnel (1) forms an air flow chamber.

7. A splash guard according to claim 6, wherein: The bottom of the limiting support ring (23) is attached with non-woven fabric.

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