Improved ear washing ball

Abstract

The utility model belongs to the technical field of experimental equipment, and provides an improved ear washing bulb which comprises a spherical air bag, an air nozzle integrally connected with the spherical air bag, and an adapting pipe connected with the end part of the air nozzle, one end, far away from the air tap, of the adapting pipe is provided with a transfer pipette tight connecting part, and the transfer pipette tight connecting part comprises an outer clamping convex ring arranged on the outer side wall of the adapting pipe and an inner sleeve convex ring arranged on the inner side wall of the adapting pipe; and the outer clamping convex ring and the inner sleeve convex ring are oppositely arranged. The improved ear washing bulb provided by the utility model can be adapted to pipettes with different specifications, ensures the tight sealing connection with the pipettes, and effectively avoids the phenomena of air leakage, air suction and pipette shaking caused by untight connection between the pipettes and the ear washing bulb, thereby improving the stability and accuracy of liquid suction.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental equipment, and particularly relates to an improved ear cleaning ball. Background Art

[0002] During the experimental testing process, the liquid is mostly removed by using an ear bulb in conjunction with a pipette. During use, the balloon is quickly squeezed by hand to expel the air inside the balloon to create negative pressure, and a certain volume of liquid is absorbed through the pipette.

[0003] At present, the pipette is usually directly inserted into the air nozzle of the ear cleaning bulb or the air nozzle of the ear cleaning bulb is inserted into the pipette to complete the connection between the pipette and the ear cleaning bulb; however, for pipettes of different specifications, it cannot be effectively guaranteed that the pipette and the air nozzle of the ear cleaning bulb fit closely, resulting in poor sealing at the connection between the pipette and the ear cleaning bulb, thereby causing air leakage and air suction, pipette shaking or even detachment and falling, seriously affecting the stability of liquid pipetting; in addition, the poor sealing performance makes it difficult for operators to judge the amount of liquid absorbed according to the degree of squeezing the balloon, resulting in insufficient or excessive absorption of liquid, resulting in liquid being sucked into the balloon, affecting the normal use of the ear cleaning bulb.

[0004] Therefore, it is necessary to design an improved ear cleaning bulb that can adapt to pipettes of different specifications and has good sealing performance and strong connection stability. Summary of the invention

[0005] In order to solve the above technical problems, the utility model proposes an improved ear cleaning bulb, which can be adapted to pipettes of different specifications, ensures a tight sealing connection with the pipette, and effectively avoids air leakage, vacuum suction and pipette shaking caused by a loose connection between the pipette and the ear cleaning bulb, thereby improving the stability and accuracy of liquid suction.

[0006] The technical solution of the utility model is:

[0007] The utility model provides an improved ear cleaning ball, comprising a spherical air bag and an air nozzle integrally connected thereto, and also comprising a receiving tube connected to the end of the air nozzle;

[0008] A pipette fastening portion is disposed at one end of the receiving tube away from the air nozzle, and the pipette fastening portion includes an outer clamping convex ring disposed on the outer side wall of the receiving tube and an inner sleeve convex ring disposed on the inner side wall of the receiving tube;

[0009] The outer clamping convex ring and the inner sleeve convex ring are arranged opposite to each other.

[0010] Preferably, the outer clamping convex ring and the inner sleeve convex ring are provided in a plurality of groups, and the plurality of groups of the outer clamping convex ring and the inner sleeve convex ring are arranged in parallel.

[0011] Preferably, a sealing convex ring is provided on the outer side wall of the gas nozzle near its end, and a sealing ring groove matched with the sealing convex ring is provided on the inner side wall of the receiving tube near its end, so that the receiving tube can be detachably mounted on the end of the gas nozzle.

[0012] Preferably, the sealing convex rings and the sealing ring grooves are provided in a plurality of groups, and the plurality of groups of the sealing convex rings and the sealing ring grooves are arranged in parallel.

[0013] Preferably, the outer clamping convex ring, the inner sleeve convex ring and the sealing convex ring are all rubber convex rings.

[0014] Preferably, the receiving tube and the air nozzle are in an integrated structure.

[0015] Preferably, the receiving tube is provided with a buffer liquid storage portion located between its two end portions, and the buffer liquid storage portion is outwardly convex, and its inner diameter is larger than the inner diameters of the two end portions of the receiving tube.

[0016] Preferably, the end of the receiving tube away from the gas nozzle is provided with a rounded structure

[0017] Preferably, the air nozzle and the receiving tube are both tapered tubes with gradually changing diameters, and gradually narrow from an end close to the spherical airbag to an end away from the spherical airbag.

[0018] Compared with the prior art, the utility model has the following advantages and effects:

[0019] (1) An outer convex ring arranged on the outer wall of the receiving tube and an inner convex ring arranged on the inner wall of the receiving tube are used. The outer convex ring shell can be adapted to connect a larger-sized pipette to ensure that the pipette is tightly sleeved on the outer periphery of the receiving tube, and the inner convex ring shell can be adapted to connect a smaller-sized pipette to ensure that the pipette is tightly inserted into the inner periphery of the receiving tube, thereby adapting to pipettes of different diameters, improving practicality while ensuring the stability and sealing of the connection, thereby avoiding the phenomenon of vacuum suction and pipette shaking;

[0020] (2) The outer clamping convex ring and the inner sleeve convex ring are arranged opposite to each other, that is, the outer clamping convex ring and the inner sleeve convex ring are located on the inner and outer sides of the same position on the side wall of the receiving tube, so as to improve the toughness of the pipette close connection position, thereby ensuring the sealing and stability of the connection with the pipette;

[0021] (3) Multiple sets of parallel outer convex rings and inner convex rings are used to further improve the sealing and stability of the connection between the receiving tube and the pipette, thereby avoiding air leakage and pipette shaking or even falling;

[0022] (4) The buffer liquid storage part arranged in the middle of the receiving tube can prevent the liquid from being sucked into the spherical air bag, thereby ensuring the normal use of the ear cleaning ball, avoiding contamination or damage to the ear cleaning ball, and effectively extending the service life of the ear cleaning ball;

[0023] (5) A receiving tube that is detachably connected to the air nozzle is used. The receiving tube can be removed for replacement or cleaning, which is convenient and quick to clean. In addition, only the receiving tube needs to be replaced without replacing the spherical airbag, which effectively reduces the cost of experimental pipetting. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the improved ear cleaning ball in Example 1 of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the improved ear cleaning ball in Example 2 of the utility model;

[0026] Figure 3 for Figure 2 Sectional view at position AA;

[0027] Figure 4 This is a schematic diagram of the explosion structure of the improved ear cleaning ball in Example 2 of the utility model;

[0028] Figure 5 This is a schematic structural diagram of the improved ear cleaning ball in Example 3 of the utility model.

[0029] Figure numerals: 1, spherical airbag; 2, air nozzle; 21, sealing convex ring; 3, receiving tube; 31, pipette fastening part; 311, outer clamping convex ring; 312, inner sleeve convex ring; 32, sealing ring groove; 33, buffer liquid storage part. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention, the present invention is now further described in conjunction with specific implementation methods.

[0031] Embodiment 1:

[0032] like Figure 1 As shown, the utility model provides an improved ear cleaning ball, comprising a spherical air bag 1, an air nozzle 2 integrally connected thereto, and a receiving tube 3 connected to the end portion of the air nozzle 2, wherein the air nozzle 2 and the receiving tube 3 are an integrated structure; that is, the spherical air bag 1, the air nozzle 2, and the receiving tube 3 are an integrated structure, and are all made of elastic rubber material.

[0033] A pipette fastening portion 31 is provided at the end of the receiving tube 3 away from the air nozzle 2. The pipette fastening portion 31 includes an outer clamping convex ring 311 provided on the outer wall of the receiving tube 3 and an inner sleeve convex ring 312 provided on the inner wall of the receiving tube 3. The outer clamping convex ring 311 is adapted to a pipette whose inner diameter is larger than the outer diameter of the receiving tube 3. The pipette is sleeved on the outer side of the receiving tube 3, and the outer clamping convex ring 311 is in close contact with the inner wall of the pipette, thereby ensuring the sealing performance of the connection between the ear cleaning ball and the pipette, and preventing the pipette from shaking or even detaching from the receiving tube 3. The inner sleeve convex ring 312 is adapted to a pipette whose outer diameter is smaller than the inner diameter of the receiving tube 3. The pipette is inserted on the inner side of the receiving tube 3, and the inner sleeve convex ring 312 is in close contact with the outer wall of the pipette, thereby ensuring the sealing performance of the connection between the ear cleaning ball and the pipette, and preventing the pipette from shaking or even detaching from the receiving tube 3.

[0034] The outer clamping ring 311 and the inner sleeve convex ring 312 are arranged relative to each other, that is, the outer clamping ring 311 and the inner sleeve convex ring 312 are located on the outer side and the inner side of the same position of the tube wall of the receiving tube 3, ensuring the toughness of the outer clamping ring 311 and the inner sleeve convex ring 312, so that the outer clamping ring 311 and the inner sleeve convex ring 312 are tightly abutted against the inner diameter or outer diameter of the pipette, thereby improving the sealing performance at the connection position.

[0035] Two groups of the outer clamping convex ring 311 and the inner sleeve convex ring 312 are provided, and the two groups of the outer clamping convex ring 311 and the inner sleeve convex ring 312 are arranged in parallel, so as to further improve the sealing and stability of the connection.

[0036] The outer clamping convex ring 311 and the inner sleeve convex ring 312 are both elastic rubber convex rings that are integrated with the receiving tube 3 .

[0037] Optionally, in some embodiments, the air nozzle 2 and the receiving tube 3 are both tapered tubes with gradually changing diameters (not shown in the figure), and both gradually narrow from one end close to the spherical airbag 1 to one end away from the spherical airbag 1 .

[0038] Optionally, in some embodiments, a rounded structure is provided at one end (lower end) of the receiving tube 3 away from the air nozzle 2 .

[0039] Embodiment 2:

[0040] For Example 2 of the utility model, Figure 2~Figure 4 Note that description of parts that are not different from those in Embodiment 1 will be omitted and will be given the same reference numerals.

[0041] like Figure 2 , Figure 3 as well as Figure 4 As shown, the utility model relates to an improved ear cleaning ball, wherein the air nozzle 2 and the receiving tube 3 are detachably connected, and the receiving tube 3 can be removed for cleaning or replacement, which is convenient and quick.

[0042] Specifically, refer to Figure 3 , Figure 4 As shown, a sealing convex ring 21 is provided on the outer wall side of the gas nozzle 2 near the end, and a sealing ring groove 32 matched with the sealing convex ring 21 is provided on the inner wall of the upper end of the receiving tube 3, so that the receiving tube 3 can be detachably mounted on the terminal end of the gas nozzle 2.

[0043] There are two sets of sealing convex rings 21 and sealing ring grooves 32, and the two sets of sealing convex rings 21 and sealing ring grooves 32 are arranged in parallel to improve the connection sealing performance. The sealing convex ring 21 is a rubber convex ring that is an integrated structure with the air nozzle 2.

[0044] Embodiment 3:

[0045] For Example 3 of the utility model, Figure 5 Note that description of parts that are not different from those in Embodiment 1 will be omitted and will be given the same reference numerals.

[0046] like Figure 5 As shown, the utility model relates to an improved ear cleaning ball, wherein the receiving tube 3 is provided with a buffer liquid storage portion 33, the buffer liquid storage portion 33 is located between the outlets at both ends of the receiving tube 3, and its inner diameter is larger than the inner diameters of the ends of the receiving tube 3, that is, the buffer liquid storage portion 33 is convex, which can accommodate part of the excessively absorbed liquid, thereby preventing the liquid from being sucked into the spherical airbag 1, causing pollution or corrosion to the inside of the spherical airbag 1, and extending the service life of the ear cleaning ball.

[0047] Optionally, in some embodiments, reference Figure 5 As shown, the receiving tube 3 is gyro-shaped, and the radial directions of the buffer liquid storage portion 33 thereof gradually decrease at both ends.

[0048] To sum up, the improved ear cleaning bulb provided by the utility model can be adapted to pipettes of different specifications, ensuring a tight and sealed connection with the pipette, effectively avoiding air leakage and pipette shaking caused by a loose connection between the pipette and the ear cleaning bulb, thereby improving the stability and accuracy of liquid absorption.

[0049] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. An improved ear cleaning ball, comprising a spherical air bag (1) and an air nozzle (2) integrally connected thereto, characterized in that: It also includes a receiving tube (3) connected to the end of the gas nozzle (2); A pipette fastening portion (31) is provided at one end of the receiving tube (3) away from the air nozzle (2), and the pipette fastening portion (31) comprises an outer clamping convex ring (311) provided on the outer side wall of the receiving tube (3), and an inner sleeve convex ring (312) provided on the inner side wall of the receiving tube (3); The outer clamping convex ring (311) and the inner sleeve convex ring (312) are arranged opposite to each other.

2. The improved ear cleaning ball according to claim 1, characterized in that: The outer clamping convex ring (311) and the inner sleeve convex ring (312) are both provided in a plurality of groups, and the plurality of groups of the outer clamping convex ring (311) and the inner sleeve convex ring (312) are arranged in parallel.

3. The improved ear cleaning ball according to claim 1, characterized in that: The outer side wall of the gas nozzle (2) near its end is provided with a sealing convex ring (21), and the inner side wall of the receiving tube (3) near its end is provided with a sealing ring groove (32) matched with the sealing convex ring (21), so that the receiving tube (3) can be detachably sleeved on the end of the gas nozzle (2).

4. The improved ear cleaning ball according to claim 3, characterized in that: The sealing convex ring (21) and the sealing ring groove (32) are provided in a plurality of groups, and the plurality of groups of the sealing convex ring (21) and the sealing ring groove (32) are arranged in parallel.

5. The improved ear cleaning ball according to claim 3, characterized in that: The outer clamping convex ring (311), the inner sleeve convex ring (312), and the sealing convex ring (21) are all rubber convex rings.

6. The improved ear cleaning ball according to claim 1, characterized in that: The receiving tube (3) and the air nozzle (2) are in an integrated structure.

7. The improved ear cleaning ball according to claim 1, characterized in that: The receiving pipe (3) is provided with a buffer liquid storage portion (33) located between its two end portions; The buffer liquid storage portion (33) is convex outwardly, and its inner diameter is larger than the inner diameters of the two end portions of the receiving tube (3).

8. The improved ear cleaning ball according to claim 1, characterized in that: The end of the receiving tube (3) away from the air nozzle (2) is provided with a rounded structure.

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