drop bottle

Abstract

The utility model provides a drip bottle belongs to mechanical technical field. It solved the problem of insufficient applicability. The present drip bottle includes bottle body and the bottle mouth place of fixed in bottle body and has the drip spout of through -hole, the outer end of drip spout is columnar, the present drip bottle still includes the dropper, and the dropper is the plastic piece, and the inner end of dropper is connected on the outer end of drip spout and is equipped with the clamping structure through concave -convex cooperation between both, and the aperture of the inner hole of dropper outer end part is less than the aperture of the through -hole of drip spout. It has wide applicability etc.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to dropper bottles. Background Technology

[0002] Viral antigen testing involves workers adding antigen reagents to viral samples. Specifically, the antigen reagent is contained in a dropper bottle, which workers use to actually add the antigen to the viral sample. This dropper bottle typically includes a bottle body, a nozzle with a vent hole fixed to the bottle opening, and a cap threaded onto the bottle opening. The bottle body is made of flexible plastic and is deformable. When needed, the cap is removed, and the worker holds the dropper bottle with the nozzle facing down, squeezing the side of the bottle body to change the internal pressure and force the reagent out through the vent hole of the nozzle to complete the dispensing.

[0003] In practice, the amount of reagent used is sometimes not required to be very precise, while at other times it is required to be relatively precise (depending on the actual situation). However, the through hole on the dropper is actually quite large, and it can dispense a relatively large amount of liquid at a time. This can meet the needs of use when there is no need for precise reagent dosage, especially for rapid dispensing. However, when there is a need for precise reagent dosage, it is easy to dispense too much liquid at once, thus resulting in insufficient applicability. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in the existing technology by proposing a dropper bottle, thus solving the problem of insufficient applicability.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A dropper bottle includes a bottle body and a dropper nozzle fixed to the bottle mouth with a through hole. The outer end of the dropper nozzle is columnar. The dropper bottle is characterized by further including a dropper tube, which is a plastic part. The inner end of the dropper tube is sleeved on the outer end of the dropper nozzle, and a snap-fit ​​structure is provided between the two through a convex-concave fit. The inner hole diameter at the outer end of the dropper tube is smaller than the through hole diameter of the dropper nozzle.

[0007] This dropper bottle features a dropper tube attached to the dropper nozzle. Because the dropper tube is made of plastic and the connection between the dropper tube and the dropper nozzle is a snap-fit ​​structure, the dropper tube can be detached from the dropper nozzle. This allows the dropper bottle to be used in two ways: When precise dosage is not required, the dropper tube can be detached from the dropper nozzle. Due to the larger opening on the dropper nozzle, a larger dispensing volume can be achieved, allowing for rapid dispensing directly from the nozzle. When precise dosage is required, the dropper tube can be reattached to the dropper nozzle, and the snap-fit ​​structure will reconnect the dropper tube. In this case, the reagent dispensing from the dropper nozzle will then be dispensed through the dropper tube. Because the inner diameter of the dropper tube's outer end is smaller than the opening of the dropper nozzle, its dispensing volume is smaller, ensuring precise dosage and preventing over-dispensing. By allowing the dropper tube to be connected or disconnected, this dropper bottle can meet both non-precise and precise dosage requirements, significantly improving its versatility.

[0008] In addition, as the name suggests, a dropper is tubular, and the flow length of the reagent is relatively long when using a dropper. This makes it easier for staff to accurately control the amount of reagent dispensed, and prevents the liquid from being dispensed with a little force, thus reducing the risk of misoperation before proper preparation.

[0009] In the aforementioned dropper bottle, the snap-fit ​​structure includes a first annular snap-fit ​​groove provided on the inner peripheral wall of the dropper and a first annular snap-fit ​​protrusion provided on the outer peripheral wall of the dropper tip.

[0010] The dropper and the nozzle are detachably connected by a snap-fit ​​mechanism where the first annular snap-fit ​​protrusion engages with the first annular snap-fit ​​groove. Furthermore, because the mating point is annular, this structure also provides a seal between the nozzle and the dropper, preventing reagent leakage during dispensing.

[0011] In the aforementioned dropper bottle, as another technical solution, the snap-fit ​​structure includes a second annular snap-fit ​​protrusion on the inner peripheral wall of the dropper and a second annular snap-fit ​​groove on the outer peripheral wall of the dropper tip.

[0012] The dropper and the nozzle are detachably connected by a snap-fit ​​mechanism where the second annular snap-fit ​​protrusion engages with the second annular snap-fit ​​groove. Furthermore, because the mating point is annular, this structure also provides a seal between the nozzle and the dropper, preventing reagent leakage during dispensing.

[0013] In the aforementioned dropper bottle, the outer diameter of the outer end of the dropper gradually decreases from its inner end to its outer end, the inner diameter of the dropper gradually decreases from its inner end to its outer end, the taper of the outer peripheral wall of the outer end of the dropper is the same as the taper of the inner peripheral wall of the dropper, and the maximum diameter of the inner hole of the dropper is smaller than the maximum outer diameter of the outer end of the dropper.

[0014] With the above setup, when the inner end of the dropper is fitted onto the outer end of the nozzle, the inner circumferential wall of the dropper will come into close contact with the outer circumferential wall of the nozzle and form a relatively tight fit. This not only increases the connection stability between the two, but also increases the sealing effect between them.

[0015] In the aforementioned dropper bottle, the outer diameter of the dropper gradually decreases from its inner end to its outer end. The inner end of the dropper is provided with an annular convex edge on its outer periphery. Several anti-slip ribs are integrally fixed between the annular convex edge and the outer peripheral wall of the dropper. Each anti-slip rib is strip-shaped along the axial direction of the dropper.

[0016] Because the dropper and the nozzle are connected by a snap-fit ​​structure, a certain pulling force is required when removing the dropper from the nozzle. To address this, an annular ridge is provided on the outer periphery of the inner end of the dropper. Several anti-slip ribs are integrally fixed between the annular ridge and the outer wall of the dropper. Each anti-slip rib is strip-shaped along the axial direction of the dropper. The annular ridge provides the operator with a point of force to pull the dropper, while the anti-slip ribs increase friction, making the pulling process smoother.

[0017] In the aforementioned dropper bottle, the outer periphery of the bottle opening has threads, and the inner end of the dropper tip has a plug-in portion, which is inserted and fixed inside the bottle opening.

[0018] When this dropper bottle is no longer needed, remove the dropper from the nozzle and then connect the cap to the bottle opening via threads for sealing and storage.

[0019] In the aforementioned dropper bottle, the outer periphery of the dropper tip is provided with an annular retaining edge, which abuts against the bottle mouth of the bottle body.

[0020] The ring-shaped baffle, when pressed against the bottle opening, limits the distance the inner end of the dropper tip can be inserted into the bottle opening, preventing excessive force from causing the entire dropper tip to fall into the bottle.

[0021] Compared with existing technologies, this dropper bottle has the following advantages:

[0022] 1. By attaching a dropper to the dropper nozzle, the dropper (made of plastic) and the dropper nozzle are connected by a snap-fit ​​structure, forming a detachable connection. This allows for both inaccurate and precise dosage of reagents. When precise dosage is not required, the dropper can be detached from the nozzle and the dropper can be used for dispensing. Due to the larger through-hole on the nozzle, a larger dispensing volume is achieved for rapid dispensing. When precise dosage is required, the dropper can be reconnected to the nozzle, and the snap-fit ​​structure forms a connection. Because the inner diameter of the outer end of the dropper is smaller than the through-hole diameter of the nozzle, its dispensing volume is smaller, ensuring precise dosage and preventing over-dispensing in one go.

[0023] 2. When using a dropper to dispense the liquid, the flow length of the reagent is also relatively long, which makes it easier for staff to accurately control the amount of reagent dispensed. This prevents the liquid from being dispensed with the slightest force, reducing the risk of misoperation before proper preparation. Attached Figure Description

[0024] Figure 1 This is a cross-sectional view of Example 1 of this dropper bottle.

[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0026] Figure 3 This is a schematic diagram of the dropper in this dropper bottle.

[0027] In the diagram, 1 is the bottle body; 2 is the dropper; 2a is the through hole; 2b is the insertion part; 2c is the annular retaining edge; 2d is the first annular snap-fit ​​protrusion; 3 is the dropper; 3a is the first annular snap-fit ​​groove; 3b is the annular protrusion; and 3c is the anti-slip rib. Detailed Implementation

[0028] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0029] Example 1

[0030] like Figure 1 and Figure 2As shown, the dropper bottle includes a bottle body 1 and a dropper nozzle 2, both made of plastic. The side of the bottle body 1 can deform under pressure. The dropper nozzle 2 has a through hole 2a and an insertion part 2b at its inner end, which is inserted and fixed inside the bottle mouth of the bottle body 1. The outer periphery of the dropper nozzle 2 has an annular retaining edge 2c, which abuts against the bottle mouth of the bottle body 1. The dropper bottle also includes a dropper tube 3, which is made of plastic. The outer end of the dropper nozzle 2 is cylindrical, and the inner end of the dropper tube 3 is sleeved on the outer end of the dropper nozzle 2, with a snap-fit ​​structure between them. The inner diameter of the outer end of the dropper tube 3 is smaller than the diameter of the through hole 2a of the dropper nozzle 2. Specifically, the snap-fit ​​structure includes a first annular snap-fit ​​groove 3a on the inner periphery of the dropper tube 3 and a first annular snap-fit ​​protrusion 2d on the outer periphery of the dropper nozzle 2.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, the outer diameter of the outer end of the dropper 2 gradually decreases from the inner end to the outer end, and the inner diameter of the dropper 3 gradually decreases from the inner end to the outer end. The taper of the outer peripheral wall of the dropper 2 is the same as the taper of the inner peripheral wall of the dropper 3, and the maximum diameter of the inner hole of the dropper 3 is smaller than the maximum diameter of the outer end of the dropper 2. When the inner end of the dropper 3 is fitted onto the outer end of the dropper 2, the inner peripheral wall of the dropper 3 will fit against the outer peripheral wall of the dropper 2, forming a relatively tight fit. This not only increases the connection stability between the two but also increases the sealing effect between them. The outer diameter of the dropper 3 gradually decreases from its inner end to its outer end, and an annular protrusion 3b is provided on the outer peripheral side of the inner end of the dropper 3. The annular protrusion 3b provides the operator with a position to apply force when pulling the dropper 3. Several anti-slip ribs 3c are integrally fixed between the annular convex edge 3b and the outer peripheral wall of the dropper 3. Each anti-slip rib 3c is strip-shaped along the axial direction of the dropper 3. The setting of each anti-slip rib 3c can increase the friction and make the pulling smoother.

[0032] The bottle 1 contains reagents. During use, the operator squeezes the outer circumference of the bottle 1 to deform it and expel the reagents. This dropper bottle has a dropper 3 attached to the dropper nozzle 2, and the dropper 3 and dropper nozzle 2 are connected by a snap-fit ​​structure. This structure allows for two usage methods: When precise dosage is not required, the operator can detach the dropper 3 from the dropper nozzle 2. Because the through-hole 2a on the dropper nozzle 2 is relatively large, it allows for a large dispensing volume, enabling rapid dispensing directly from the nozzle. When precise dosage is required, the dropper 3 is reattached to the dropper nozzle 2, and the snap-fit ​​structure reconnects it. The reagent from the dropper nozzle 2 will then be dispensed through the dropper 3. Since the inner diameter of the outer end of the dropper 3 is smaller than the through-hole 2a of the dropper nozzle 2, its dispensing volume is smaller, ensuring precise dosage and preventing over-dispensing. Since the snap-fit ​​structure with concave and convex fit is actually composed of the first annular snap-fit ​​groove 3a and the first annular snap-fit ​​protrusion 2d, this structure can also play a sealing role between the dropper 2 and the dropper 3, ensuring that the reagent cannot leak out from between the dropper 2 and the dropper 3 when dispensing.

[0033] Furthermore, such as Figure 1 As shown, the bottle body 1 has external threads on the outer periphery of the bottle mouth. This dropper also includes a bottle cap (not shown in the figure). After the dropper 3 is removed from the dropper 2, the bottle cap can be threaded onto the bottle mouth of the bottle body 1. The inner side of the bottle cap is provided with a sealing post. The sealing post will be inserted into the through hole 2a of the dropper 2 to seal it and ensure that the reagent in the bottle body 1 will not leak out.

[0034] Example 2

[0035] This embodiment is basically the same as the first embodiment in terms of structure and principle, except that: in this embodiment, the snap-fit ​​structure includes a second annular snap-fit ​​protrusion on the inner peripheral wall of the dropper 3 and a second annular snap-fit ​​groove on the outer peripheral wall of the nozzle 2.

[0036] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A dropper bottle, comprising a bottle body (1) and a dropper nozzle (2) fixed to the bottle mouth of the bottle body (1) and having a through hole (2a), wherein the outer end of the dropper nozzle (2) is columnar, characterized in that, This dropper also includes a dropper (3), which is a plastic part. The inner end of the dropper (3) is sleeved on the outer end of the nozzle (2) and there is a snap-fit ​​structure between the two through the convex and concave fit. The inner hole diameter at the outer end of the dropper (3) is smaller than the through hole (2a) diameter of the nozzle (2).

2. The dropper bottle according to claim 1, characterized in that, The snap-fit ​​structure includes a first annular snap-fit ​​groove (3a) on the inner peripheral wall of the dropper (3) and a first annular snap-fit ​​protrusion (2d) on the outer peripheral wall of the nozzle (2).

3. The dropper bottle according to claim 1, characterized in that, The snap-fit ​​structure includes a second annular snap-fit ​​protrusion on the inner peripheral wall of the dropper (3) and a second annular snap-fit ​​groove on the outer peripheral wall of the nozzle (2).

4. The dropper bottle according to claim 2 or 3, characterized in that, The outer diameter of the outer end of the dropper (2) gradually decreases from its inner end to its outer end. The inner diameter of the dropper (3) gradually decreases from its inner end to its outer end. The taper of the outer peripheral wall of the outer end of the dropper (2) is the same as the taper of the inner peripheral wall of the dropper (3). The maximum diameter of the inner hole of the dropper (3) is smaller than the maximum outer diameter of the outer end of the dropper (2).

5. The dropper bottle according to claim 4, characterized in that, The outer diameter of the dropper (3) gradually decreases from its inner end to its outer end. The inner end of the dropper (3) is provided with an annular convex edge (3b) on its outer periphery. Several anti-slip ribs (3c) are integrally fixed between the annular convex edge (3b) and the outer periphery of the dropper (3). Each anti-slip rib (3c) is strip-shaped along the axial direction of the dropper (3).

6. The dropper bottle according to claim 1, characterized in that, The bottle body (1) has threads on the outer periphery of the bottle mouth, and the inner end of the dropper (2) has a plug (2b), which is plugged and fixed inside the bottle mouth of the bottle body (1).

7. The dropper bottle according to claim 6, characterized in that, The dropper (2) has an annular baffle (2c) on its outer periphery, and the annular baffle (2c) abuts against the mouth of the bottle body (1).

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