A narrow-mouthed glass bottle containing a chemical reagent

Abstract

A kind of narrow mouth glass bottle containing chemical reagent, including bottle, bottle cap, the bottle mouth of narrow mouth bottle neck of the bottle upper end is equipped with the flange that protrudes outward to prevent retreat, the bottle cap is made of thermoplastic elastomeric material, the upper end of bottle cap is sealing end, the lower end is tubular part, the tubular part is equipped with an inner plug made of thermoplastic elastomeric material, the upper end of inner plug is fixedly bonded with the inner wall of bottle cap upper end, there is a gap for narrow mouth bottle neck between the outer wall of inner plug and the inner wall of tubular part of bottle cap, the inner plug of bottle cap is inserted into narrow mouth bottle neck, and the bottle cap is sealed and fixed by being sleeved on narrow mouth bottle neck through tubular part.

Description

TECHNICAL FIELD

[0001] The utility model relates to biological preparation technical field especially is involved in a kind of narrow-mouth glass bottle of chemical reagent. BACKGROUND

[0002] In the production and use process of chemical reagent, various reagent bottles are often used, such as wide-mouth reagent bottle for containing solid reagent and narrow-mouth glass bottle for storing liquid reagent. When containing liquid reagent with volatility, hygroscopicity and the like, these chemical reagents need to be sealed and stored.

[0003] CN204606523U discloses a sealed reagent bottle. The bottle mouth of the reagent bottle is provided with external threads. The inner surface of the lower part of the bottle cap is provided with internal threads matched with the reagent bottle body. The end face of the bottle mouth of the reagent bottle body is provided with an annular groove. The position where the bottle cap abuts against the end face of the bottle mouth is provided with an annular protrusion matched with the annular groove. The reagent bottle is sealed through the cooperation of the annular groove and the annular protrusion and the threaded cooperation of the bottle cap and the bottle mouth of the reagent bottle. However, the bottle mouth of this reagent bottle is linear. When pouring chemical liquid, the liquid is easy to spill. After pouring the liquid, the residual liquid at the bottle mouth will flow outward along the threads, causing environmental pollution to the receiving measuring cup, experimental table surface, ground and the like. Even the chemical liquid will flow to the holding recess of the reagent bottle body, causing harm to the human body of the experimental personnel. In addition, the end face of the bottle mouth of the reagent bottle body is provided with an annular groove. This structure is not easy to realize on a glass reagent bottle and is only suitable for the reagent bottle body made of plastic. However, the reagent bottle made of plastic is easy to react with some chemical reagents.

[0004] CN217836727U discloses a glass reagent bottle. The plug of the reagent bottle includes an integrally formed hand-holding section and an insertion section for being inserted into the neck of the narrow-mouth bottle. The insertion section is provided with a deformation hole along the length direction of the insertion section. The side wall is provided with a deformation groove communicated with the deformation hole. The insertion section is provided with anti-skid protrusions. This reagent bottle is made of glass. The glass reagent bottle is sealed by relying on the friction force between the plug and the neck of the narrow-mouth bottle. However, the deformation groove provided on the plug will affect the sealing effect. The anti-skid protrusions provided on the insertion section will accumulate reagent. When the plug is opened, the reagent will spill. In addition, this reagent bottle with plug-in type plug is not suitable for transportation and moving. SUMMARY

[0005] To solve the problems of the prior art, the utility model provides a narrow-mouth glass bottle for containing chemical reagent. A retreat-preventing flange is arranged at the top end of the neck of the narrow-mouth bottle. A thermoplastic elastomer inner plug is arranged inside the thermoplastic elastomer bottle cap. The neck of the narrow-mouth bottle and the retreat-preventing flange are matched in the gap between the tubular part of the bottle cap and the inner plug, so as to form sealing and fixing.

[0006] The technical scheme of the utility model is as follows:

[0007] A kind of narrow mouth glass bottle containing chemical reagent, including bottle, bottle cap, the bottle mouth of narrow mouth bottle neck that is provided on the upper end of bottle is equipped with the outward convex stop flange, the bottle cap is made of thermoplastic elastomer material, the upper end of bottle cap is sealing end, and the lower end is tubular portion, a inner plug made of thermoplastic elastomer material is arranged in tubular portion, the upper end of inner plug is adhesively fixed with the inner wall of upper end of bottle cap, the inner wall of outer wall of inner plug and tubular portion of bottle cap is left with the clearance for narrow mouth bottle neck, the inner plug of bottle cap is inserted into narrow mouth bottle neck, and bottle cap is sealed and fixed by being sleeved on narrow mouth bottle neck through tubular portion.

[0008] Preferably, the upper end of tubular portion of bottle cap is large diameter section, the lower end of tubular portion is small diameter section, and the clearance for stop flange is left between the outer wall of inner plug and large diameter section of tubular portion.

[0009] Preferably, the inner diameter of large diameter section of tubular portion of bottle cap is slightly smaller than the outer diameter of stop flange.

[0010] Preferably, the inner diameter of small diameter section of tubular portion of bottle cap is slightly smaller than the outer diameter of narrow mouth bottle neck.

[0011] Preferably, the inner plug and the inner wall of upper end of bottle cap form a cavity without filling.

[0012] Preferably, the connection of narrow mouth bottle neck and bottle is smooth transition.

[0013] Preferably, the circumferential wall of bottle is provided with gripping convex edges for easy gripping.

[0014] Preferably, the bottom of bottle is provided with annular convex edges for anti-skid.

[0015] Preferably, the axial length of inner plug is greater than half of the axial length of tubular portion of bottle cap, and the axial length of inner plug is less than the axial length of tubular portion of bottle cap.

[0016] By the above scheme, the clearance for narrow mouth bottle neck is left between tubular portion of bottle cap made of thermoplastic elastomer material and inner plug, the inner plug of bottle cap is inserted into narrow mouth bottle neck, and bottle cap is sealed and fixed by being sleeved on narrow mouth bottle neck through tubular portion.

[0017] In summary, the beneficial technical effects of the present application are: (1) while having good sealing performance, the glass bottle body, thermoplastic elastomer bottle cap and inner plug are not easy to react with chemicals, and can be used to contain various chemical reagents; (2) the bottle opening is provided with an outwardly protruding retreat stop flange, which can prevent the plug from falling off from the narrow mouth bottle neck, and can also guide the flow and prevent spilling when pouring chemical liquid; (3) the narrow mouth bottle neck and the plug are in smooth surface contact without thread cooperation, preventing chemical liquid spilling caused by thread guiding; (4) compared with the reagent bottle provided with only the plug-in plug, the sealing effect is better, and it is also conducive to transportation and moving; (5) the connection between the narrow mouth bottle neck and the bottle body is smooth transition, which is conducive to the stable flow of liquid when pouring; (6) a gripping rib is arranged on the circumferential wall of the bottle body for easy gripping, and a radially arranged anti-skid rib is arranged at the bottom of the bottle body for anti-skid, which is convenient for the experimenters to hold and place; (7) the narrow mouth glass bottle for containing chemical reagents has simple structure and low production cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present application;

[0019] Figure 2 is a schematic diagram of the appearance of the present application;

[0020] Figure 3 is a schematic diagram of the bottle cap structure;

[0021] Figure 4 is a schematic diagram of the plug structure;

[0022] Figure 5 is a schematic diagram of the assembly of the bottle cap and the plug. DETAILED DESCRIPTION

[0023] Referring to Figures 1 to 5The utility model provides a kind of narrow-mouth glass bottle containing chemical reagent, including bottle body 1, bottle cap 3, the upper end of the bottle body 1 is connected with narrow-mouth bottle neck 2 and is smooth transition, when pouring liquid, it is convenient for the stable flow of liquid, it is easy to control reagent pouring amount, the bottle mouth of the narrow-mouth bottle neck 2 is equipped with the outward convex stop flange 4, the stop flange 4 is convenient for liquid flow when liquid pours, and it can cooperate with bottle cap 3, prevent bottle cap 3 from falling off from narrow-mouth bottle neck 2, the bottle cap 3 is made of thermoplastic elastomer, the upper end of bottle cap 3 is sealed end, lower end is tubular portion, lower end tubular portion can be folded to the upper side of sealed end by the elastic property of thermoplastic elastomer, the upper end of the tubular portion of the bottle cap 3 is large diameter section, the lower end of the tubular portion is small diameter section, the tubular portion is equipped with the inner plug 5 made of thermoplastic elastomer, the upper end of the inner plug 5 is fixedly bonded with the inner wall of the upper end of bottle cap 3, and the inner plug 5 and the inner wall of the upper end of bottle cap 3 form a cavity without filling, and the cavity without filling provides elasticity for the inner plug 5 inserted into narrow-mouth bottle neck 2 by thermoplastic elastomer, the axial length of the inner plug 5 is greater than half of the axial length of the tubular portion of bottle cap 3, the inner plug 5 provides good sealing effect by being deeply inserted into narrow-mouth bottle neck 2, the axial length of the inner plug 5 is less than the axial length of the tubular portion of bottle cap 3, and the tubular portion of bottle cap 3 can prevent the inner plug 5 from directly contacting with experimental personnel or test table, the outer wall of the inner plug 5 and the inner wall of the tubular portion of bottle cap 3 are left with a gap for narrow-mouth bottle neck, especially, the outer wall of the inner plug 5 and the large diameter section of the tubular portion are left with a gap for stop flange 4, the inner plug 5 of bottle cap 3 is tightly inserted into narrow-mouth bottle neck 2, bottle cap 3 is sleeved on narrow-mouth bottle neck 2 through the tubular portion, the inner diameter of the large diameter section of the tubular portion of bottle cap 3 is slightly smaller than the outer diameter of stop flange 4, so as to be tightly attached to stop flange 4, thereby achieving the effect of sealing and preventing bottle cap 3 from falling off. The inner diameter of the small diameter section of the tubular portion of bottle cap 3 is slightly smaller than the outer diameter of narrow-mouth bottle neck 2, so that the tubular portion of bottle cap 3 is tightly attached to narrow-mouth bottle neck, thereby forming sealing fixation.

[0024] The side wall of the bottle body 1 is circumferentially provided with a holding convex rib 6 for convenient holding, and the holding convex rib 6 in the embodiment is two, which is convenient for experimental personnel to hold.

[0025] When installing the bottle cap 3, the tubular portion of the bottle cap 3 is turned to the upper side of the sealed end, the inner plug 5 is tightly inserted into the narrow-mouth bottle neck 2, and then the tubular portion of the bottle cap 3 is turned back to the original state, so as to form sealing fixation; when removing the bottle cap 3, the tubular portion of the bottle cap 3 is folded to the upper side of the sealed end, and then the inner plug 5 is pulled out.

[0026] The above description is only preferred embodiments of the utility model, and is not used to limit the utility model, and the changes made by the person skilled in the art without departing from the spirit of the utility model fall within the protection scope of the utility model.

Claims

1. A narrow-mouthed glass bottle containing a chemical reagent, comprising a bottle body (1), a bottle cap (3), characterized in that: The bottle body (1) is provided with an outwardly protruding retreat-stop flange (4) at the bottle mouth of the narrow-mouth bottle neck (2) arranged at the upper end of the bottle body (1), the bottle cap (3) is made of thermoplastic elastomer, the upper end of the bottle cap (3) is a sealing end, the lower end is a tubular part, a inner plug (5) made of thermoplastic elastomer is arranged in the tubular part, the upper end of the inner plug (5) is fixedly bonded to the inner wall of the upper end of the bottle cap (3), a clearance is left between the outer wall of the inner plug (5) and the inner wall of the tubular part of the bottle cap (3) for the narrow-mouth bottle neck, the inner plug (5) of the bottle cap (3) is inserted into the narrow-mouth bottle neck (2), and the bottle cap (3) is sealingly fixed on the narrow-mouth bottle neck (2) through the tubular part.

2. The narrow-mouth glass bottle containing a chemical reagent of claim 1, wherein: The upper end of the tubular part of the bottle cap (3) is a large-diameter section, the lower end of the tubular part is a small-diameter section, and a clearance is left between the outer wall of the inner plug (5) and the large-diameter section of the tubular part for the retreat-stop flange (4).

3. The glass vial of claim 2, wherein: The inner diameter of the large-diameter section of the tubular part of the bottle cap (3) is slightly smaller than the outer diameter of the retreat-stop flange (4).

4. The glass vial of claim 2, wherein: The inner diameter of the small-diameter section of the tubular part of the bottle cap (3) is slightly smaller than the outer diameter of the narrow-mouth bottle neck (2).

5. The glass vial of claim 1, wherein: The inner plug (5) and the inner wall of the upper end of the bottle cap (3) form a cavity without filling.

6. The glass vial of claim 1, wherein: The connection between the narrow-mouth bottle neck (2) and the bottle body (1) is smoothly transitioned.

7. The glass vial of claim 1, wherein: The lateral wall of the bottle body (1) is circumferentially provided with a holding protrusion (6) for facilitating holding.

8. The glass vial of claim 1, wherein: The bottom of the bottle body (1) is radially provided with an annular protrusion (7) for preventing slipping.

9. The glass vial of claim 1, wherein: The axial length of the inner plug (5) is greater than half the axial length of the tubular part of the bottle cap (3), and the axial length of the inner plug (5) is less than the axial length of the tubular part of the bottle cap (3).

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