A novel type of plastic blue-capped reagent bottle

Abstract

This utility model relates to the field of reagent bottle technology and provides a novel plastic blue-capped reagent bottle, comprising: a bottle body and a top cap for sealing the bottle body opening, wherein the top of the bottle body opening is provided with an external thread; the lower end of the top cap is provided with a threaded connecting block that mates with the bottle body, and the threaded connecting block is provided with an internal thread that matches the external thread; a sealing inner cap for achieving a primary seal is also engaged at the top of the bottle body opening; a hook structure is fixedly provided inside the top cap, and a cover frame that mates with the hook structure is fixedly connected to the top of the sealing inner cap; with this application, the sealing inner cap can be removed simultaneously when the top cap is unscrewed, reducing the operation of opening twice, and when the top cap is screwed back, the squeezing and carrying block can be engaged with the cover frame again, and the function of simultaneously removing the sealing inner cap can be retained when opening again. The operation of removing the sealing inner cap is simple and quick, and it can be reused, which can effectively improve the efficiency of reagent dispensing.

Description

Technical Field

[0001] This utility model relates to the field of reagent bottle technology, and in particular to a novel plastic blue-capped reagent bottle. Background Technology

[0002] Plastic reagent bottles are one of the most basic containers used in laboratories to store various chemical reagents and sample solutions. They typically consist of a bottle body, a sealing inner cap, and an external threaded cap. To ensure a tight seal, many reagent bottles have a separate inner cap (or inner stopper) at the bottle opening. This inner cap is usually made of a flexible material (such as rubber, silicone, or flexible polyethylene), and its elastic deformation forms an interference fit with the bottle opening, thus achieving both airtight and liquid-tight seals.

[0003] However, during use, because the inner cap and the bottle opening need to form an interference fit to achieve a seal, there is a large friction between the two, making it difficult to remove by hand. Operators usually need to use tools such as tweezers or use their fingernails to pry it off, which is extremely inconvenient and carries the risk of tool contamination or finger cuts, making it difficult to remove the independent inner cap easily. Utility Model Content

[0004] The purpose of this invention is to solve the problem in the prior art where, during use, the inner cap and the bottle opening need to form an interference fit to achieve a seal, resulting in significant friction between them. This makes it difficult to remove by hand, and operators usually need to use tools such as tweezers or use their fingernails to pry it off, which is extremely inconvenient and carries the risk of tool contamination or finger injuries, making it difficult to easily remove the independent inner cap.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a novel plastic blue-capped reagent bottle, comprising: a bottle body and a top cap for sealing the mouth of the bottle body.

[0006] The top of the bottle opening is provided with an external thread;

[0007] The lower end of the top cover is provided with a threaded connecting block that mates with the bottle body, and the threaded connecting block is provided with an internal thread that matches the external thread.

[0008] The top of the bottle opening is also fitted with a sealing inner cap for achieving a primary seal;

[0009] The top cover is fixedly provided with a hook structure, and the top of the sealed inner cover is fixedly connected with a cover frame that cooperates with the hook structure.

[0010] The hook structure includes a compression carrying block fixedly connected to the top of the inner end of the top cover. The cover frame is hollow inside and has a through hole at the top. The lower end of the compression carrying block is conical.

[0011] When the top cover is tightened, the tapered lower end of the compression carrying block can compress and expand the periphery of the through hole at the upper end of the cover frame, causing the cover frame to undergo elastic deformation and then be fitted onto the outside of the compression carrying block, thereby achieving the snap-fit ​​between the top cover and the sealing inner cover.

[0012] When the top cap is unscrewed, the compression carrying block drives the sealing inner cap to rise synchronously through the cover frame, causing it to detach from the bottle opening.

[0013] In a preferred embodiment, the inner wall or bottom wall of the threaded connecting block is provided with multiple cylindrical through holes, which are used to allow the atmosphere inside and outside the bottle to communicate when the inner sealing cap is pulled up, thereby quickly breaking the vacuum.

[0014] In a preferred embodiment, the vertical wall of the cover frame is made of a rigid material, while the top horizontal wall is made of an elastic plastic material.

[0015] In a preferred embodiment, the sealing inner cap is made of a flexible sealing material, and its edge is provided with a flange for forming an interference fit with the mouth of the bottle.

[0016] In a preferred embodiment, the top cover is fixedly connected with a plurality of evenly distributed cylindrical protrusions to increase the contact friction between the top cover and the hand, making it easier to rotate the top cover.

[0017] In one preferred embodiment, the upper part of the bottle body is provided with a concave-convex bottle body, the purpose of which is to conform to the grip curve of the hand, making it easy to grip and preventing slippage when gripping.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0019] This invention allows the inner sealing cap to be removed simultaneously when the top cap is unscrewed, reducing the need for secondary opening operations. Furthermore, when the top cap is screwed back on, the compression carrying block can be re-engaged with the cover frame, ensuring that the function of simultaneously removing the inner sealing cap is retained during the next opening. The removal of the inner sealing cap is simple, quick, and reusable, effectively improving the efficiency of reagent dispensing. Attached Figure Description

[0020] Figure 1 A schematic diagram of the main structure of a novel plastic blue-capped reagent bottle provided by this utility model;

[0021] Figure 2 A cross-sectional view of a novel plastic blue-capped reagent bottle provided by this utility model;

[0022] Figure 3 A schematic diagram of the structure of a novel plastic blue-capped reagent bottle provided by this utility model;

[0023] Figure 4 A schematic diagram of the sealing inner cap of a novel plastic blue-capped reagent bottle provided by this utility model;

[0024] Figure 5 A schematic diagram of the top cap of a novel plastic blue-capped reagent bottle provided by this utility model.

[0025] Legend:

[0026] 1. Bottle body; 2. Top cap; 3. Threaded connecting block; 5. Cylindrical protrusion; 6. Concave-convex bottle body; 7. Sealing inner cap; 8. Cover frame; 9. Compression carrying block; 10. Through hole; 11. External thread. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-5 This embodiment provides a novel structure for a plastic blue-capped reagent bottle, the specific concept of which is as follows:

[0029] A novel plastic blue-capped reagent bottle includes a bottle body 1 and a top cap 2 for sealing the opening of the bottle body 1.

[0030] The top of the bottle body 1 opening is provided with an external thread 11;

[0031] The lower end of the top cover 2 is provided with a threaded connecting block 3 that mates with the bottle body 1. The threaded connecting block 3 is provided with an internal thread that matches the external thread 11.

[0032] The top of the bottle body 1 opening is also fitted with a sealing inner cap 7 for achieving a primary seal; the sealing inner cap 7 is made of flexible sealing material, and its edge is provided with a flange for forming an interference fit with the bottle body 1 opening, so that the sealing inner cap 7 can have sufficient sealing stability with the bottle body 1 opening.

[0033] The top cover 2 has a hook structure fixedly installed inside, and the top of the sealed inner cover 7 is fixedly connected to a cover frame 8 that matches the hook structure.

[0034] The hook structure includes a compression carrying block 9 fixedly connected to the top of the top cover 2. The cover frame 8 is hollow inside and has a through hole at the top. The lower end of the compression carrying block 9 is conical. The vertical wall of the cover frame 8 is made of rigid material, and the top horizontal wall is made of elastic plastic material. The elastic material at the top facilitates the secondary insertion of the compression carrying block 9, while the rigid material of the vertical wall can prevent the excessive elastic deformation during insertion and pulling, which would cause the compression carrying block 9 to detach.

[0035] When the top cover 2 is tightened, the tapered lower end of the compression carrying block 9 can compress and expand the periphery of the through hole 10 at the upper end of the cover frame 8, causing the cover frame 8 to undergo elastic deformation and then be fitted onto the outside of the compression carrying block 9, thereby achieving the snap-fit ​​between the top cover 2 and the sealing inner cover 7.

[0036] When the top cap 2 is unscrewed, the squeezing and carrying block 9 drives the sealing inner cap 7 to rise synchronously through the cover frame 8, causing it to detach from the mouth of the bottle body 1.

[0037] This allows the inner sealing cover 7 to be removed simultaneously when the top cover 2 is unscrewed, reducing the need for secondary opening operations. Furthermore, when the top cover 2 is screwed back, the squeezing and carrying block 9 can be re-engaged with the cover frame 8, and the function of simultaneously removing the inner sealing cover 7 can be retained when opening it again. The removal operation of the inner sealing cover 7 is simple and quick, and it can be reused, which can effectively improve the efficiency of reagent dispensing.

[0038] Furthermore, during use, if the reagent bottle contains volatile solvents, the evaporation of the liquid inside the bottle will cause the internal air pressure to drop, forming a negative pressure state, i.e., a "vacuum" effect. This negative pressure will generate a strong adsorption force on the inner cap, tightly "sucking" it to the bottle mouth, making it more difficult to remove the inner cap.

[0039] To solve the above problems, multiple cylindrical through holes 10 are provided on the inner side wall or bottom wall of the threaded connection block 3. When the inner sealing cover 7 is pulled up, the atmosphere inside and outside the bottle can be quickly connected through the through holes 10, which improves the air flow efficiency between the threaded connections. During the rotation of the top cover 2, external gas can also be quickly introduced, preventing the vacuum effect from being difficult to break due to the obstruction of gas passage under the threaded connection.

[0040] The top cover 2 is fixedly connected with multiple evenly distributed cylindrical protrusions 5; these are used to increase the contact friction between the top cover and the user's hand, making it easier for the user to tighten or loosen the top cover 2.

[0041] The upper part of the bottle body 1 is provided with a concave-convex bottle body 6, which is designed to fit the hand grip curve, making it easy to grip and preventing slippage when holding.

[0042] Working principle: In the initial state or when the bottle needs to be sealed, the inner sealing cap 7 and the cover frame 8 are pressed into the mouth of the bottle body 1. Then, the top cap 2 is aligned with the bottle mouth and pressed down and rotated clockwise. During this process, the top cap 2 engages with the external thread 11 of the bottle body 1 through the threaded connecting block 3 and moves downward.

[0043] Simultaneously, the compression carrying block 9 fixed on the top cover 2 also moves downwards. Its lower conical surface first contacts and compresses the periphery of the upper through hole of the cover frame 8. Under continuous downward pressure, the conical surface forces the upper part of the cover frame 8 to undergo radial elastic expansion until the end of the compression carrying block 9 completely passes through the through hole. Subsequently, the material of the cover frame 8 rebounds and returns to its original shape, thereby covering the end of the compression carrying block 9 in its cavity and achieving the snap-fit ​​between the two. At this time, the top cover 2 and the sealing inner cover 7 form a linkage connection through the cooperation of the compression carrying block 9 and the cover frame 8.

[0044] When the reagent bottle needs to be opened, the user rotates the top cover 2 counterclockwise. The top cover 2 moves upward through the threaded joint and, through the snap-fit ​​engagement between the compression carrying block 9 and the cover frame 8, drives the inner sealing cover 7 to move upward synchronously.

[0045] The seal between the inner cap 7 and the bottle opening is broken the instant the inner cap 7 is pulled upward. At the same time, the air inside and outside the bottle is immediately exchanged rapidly through the multiple cylindrical through holes 10 on the side wall of the threaded connecting block 3, instantly balancing the pressure difference between the inside and outside of the bottle that may be caused by reagent evaporation, thus breaking the vacuum. This design greatly eliminates the suction force of negative pressure on the inner cap 7, making the operation of unscrewing the top cap 2 and pulling the inner cap 7 very easy and effortless.

[0046] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel plastic blue-capped reagent bottle, comprising a bottle body (1) and a top cap (2) for sealing the opening of the bottle body (1), characterized in that: The top of the mouth of the bottle body (1) is provided with an external thread (11); The lower end of the top cover (2) is provided with a threaded connecting block (3) that mates with the bottle body (1), and the threaded connecting block (3) is provided with an internal thread that matches the external thread (11); The bottle body (1) is also fitted with a sealing inner cap (7) for achieving a primary seal at the top of the mouth; the top cap (2) is fixedly provided with a hook structure, and the top of the sealing inner cap (7) is fixedly connected with a cover frame (8) that cooperates with the hook structure. The hook structure includes a compression carrying block (9) fixedly connected to the top of the top cover (2). The cover frame (8) is hollow inside and has a through hole at the top. The lower end of the compression carrying block (9) is conical.

2. The novel plastic blue-capped reagent bottle according to claim 1, characterized in that, The inner sidewall or bottom wall of the threaded connecting block (3) is provided with multiple cylindrical through holes (10) for connecting the atmosphere inside and outside the bottle when the inner sealing cap (7) is pulled up, so as to quickly break the vacuum.

3. The novel plastic blue-capped reagent bottle according to claim 2, characterized in that, The vertical wall of the cover frame (8) is made of rigid material, and the top horizontal wall is made of elastic plastic material.

4. The novel plastic blue-capped reagent bottle according to claim 1, characterized in that, The inner sealing cap (7) is made of a flexible sealing material and has a flange on its edge for forming an interference fit with the mouth of the bottle body (1).

5. The novel plastic blue-capped reagent bottle according to claim 1, characterized in that, The top cover (2) is fixedly connected with a plurality of evenly distributed cylindrical protrusions (5).

6. The novel plastic blue-capped reagent bottle according to claim 1, characterized in that, The upper part of the bottle body (1) is provided with a concave-convex bottle body (6).

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