One-way ear washing ball

Abstract

The utility model relates to the technical field of ear washing bulbs, and discloses a one-way ear washing bulb which comprises a bulb body, the bulb body is communicated with an air inlet pipe and an air outlet pipe, plugging structures are arranged in the air inlet pipe and the air outlet pipe, the air inlet pipe, the air outlet pipe and the plugging structures form a one-way double-channel structure, and each plugging structure is composed of a spring and a plugging ball. The blocking ball is hung on the lower portion of the air inlet pipe through a spring, and the other blocking ball is supported on the upper portion of the exhaust pipe through a spring connected with the blocking ball. The one-way ear washing ball extrudes the ball body, air in the ball body enters the exhaust pipe, air flow drives the blocking ball in the exhaust pipe to move downwards and is exhausted, then the air inlet pipe is arranged in a transfer pipette, the ball body is loosened, air enters the air inlet pipe, the air flow drives the blocking ball in the air inlet pipe to move upwards, air enters the ball body through the air inlet pipe, and the ball body is extruded and loosened in a staggered mode. The air flow performs one-way movement by taking the air inlet pipe, the ball body and the exhaust pipe as a track.

Description

Technical Field

[0001] The utility model relates to the technical field of ear cleaning balls, in particular to a one-way ear cleaning ball. Background Art

[0002] An ear bulb, also known as an ear suction bulb, dust blowing ball, leather tiger, or leather blower, is a tool instrument made of rubber, mainly used for quantitative extraction of liquids with a pipette. Pipetting is a common operation in experiments in chemistry, biology, materials, and other industries. Pipetting operations usually require the use of a pipette and an ear bulb. When pipetting, the ear bulb is generally placed on the top of the pipette, the liquid is sucked into the pipette, and then the liquid in the pipette is moved into the desired container. When operating the ear bulb, you need to squeeze the ball first, then insert the nozzle into the pipette, release the ball, the ball rebounds, the pressure inside the ball decreases, and under the action of atmospheric pressure, the liquid enters the pipette.

[0003] When transferring a large amount of liquid, the ear bulb needs to be moved away from the pipette several times, and then squeezed again and the pipetting operation is repeated. The repeated operation seriously affects the pipetting efficiency of the experimenter. Utility Model Content

[0004] The purpose of the utility model is to provide a one-way ear cleaning ball to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a one-way ear cleaning ball, comprising: a sphere, the sphere is connected with an intake pipe and an exhaust pipe, and sealing structures are arranged in the intake pipe and the exhaust pipe, and the intake pipe, the exhaust pipe and the sealing structure form a one-way dual-channel structure, and the sealing structure is composed of a spring and a blocking ball, the blocking ball is suspended at the lower part of the intake pipe by the spring, and the other blocking ball is supported at the upper part of the exhaust pipe by the spring connected thereto.

[0006] Preferably, the sphere is fixedly mounted with a bracket, the bracket is a hollow rod-shaped structure, and the bracket is connected to the sphere.

[0007] Preferably, the bracket is provided with a first air port and a second air port.

[0008] Preferably, the air intake pipe and the exhaust pipe are connected to the sphere via the bracket, and connectors are provided at the top ends of the air intake pipe and the exhaust pipe, and the connectors are threadedly connected to the bracket.

[0009] Preferably, the air intake pipe is divided into an upper pipe and a lower pipe, the spring is fixedly installed in the upper pipe, and a suction nozzle is provided in the lower pipe.

[0010] Preferably, the suction nozzle transitions upward and is connected with an inwardly-retracted portion directed downward, and the inwardly-retracted portion abuts against the blocking ball.

[0011] Preferably, the exhaust pipe is divided into an upper pipe and a lower pipe, the spring is fixedly mounted on the lower pipe, an air outlet is provided on the lower pipe, and the air outlet is located below the spring.

[0012] Preferably, the upper tube is provided with an outwardly expanding portion directed downward, and the outwardly expanding portion abuts against the blocking ball.

[0013] Preferably, a support ring is fixedly mounted on the upper tube of the air intake pipe, and a sealing gasket is fixedly mounted on the support ring.

[0014] Preferably, a support ring is fixedly mounted on the upper tube of the exhaust pipe, and a sealing gasket is fixedly mounted on the support ring.

[0015] The one-way ear cleaning ball has the following beneficial effects:

[0016] The one-way ear cleaning ball is squeezed, and the air in the ball enters the exhaust pipe, and the airflow drives the blocking ball in the exhaust pipe to move downward, and the air is discharged. Then the air intake pipe is placed in the pipette, and the ball is released, and air enters the air intake pipe. The airflow drives the blocking ball in the air intake pipe to move upward, and the air enters the ball through the air intake pipe. The ball is squeezed and released alternately, so that the airflow performs a one-way movement with the trajectory of the air intake pipe→the ball→the exhaust pipe. When more liquid needs to be transferred, there is no need to move the ear cleaning ball away from the pipette multiple times. Only repeated squeezing and releasing of the ball is required to enable the pipette to continuously absorb the experimental liquid, thereby improving the pipetting efficiency of the experimenter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a one-way ear cleaning ball provided in an embodiment of the present application;

[0018] Figure 2 An exploded view of a one-way ear cleaning ball provided in an embodiment of the present application;

[0019] Figure 3 for Figure 1 Schematic diagram of the assembly of the middle bracket, intake pipe and exhaust pipe;

[0020] Figure 4 for Figure 3 A cross-sectional view of

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] In the figure: 1. sphere; 2. bracket; 21. first air port; 22. second air port; 3. air inlet pipe; 31. suction nozzle; 32. inward-retracting part; 4. exhaust pipe; 41. air outlet; 42. outward-expanding part; 5. connector; 6. flange; 7. sealing structure; 71. spring; 72. blocking ball; 8. support ring; 9. sealing gasket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-Figure 3 As shown, the utility model provides a one-way ear cleaning ball, comprising: a ball 1, a bracket 2 is fixedly installed on the ball 1, the bracket 2 is a hollow rod-shaped structure, the bracket 2 is connected to the ball 1, and the bracket 2 has a first air port 21 and a second air port 22.

[0025] Among them, Figure 2 , Figure 5 As shown, the sphere 1 is connected with an air intake pipe 3 and an exhaust pipe 4, and the air intake pipe 3 and the exhaust pipe 4 are connected with the sphere 1 through a bracket 2. Connectors 5 are provided at the tops of the air intake pipe 3 and the exhaust pipe 4, and the connectors 5 are threadedly connected to the bracket 2, so that the air intake pipe 3 and the exhaust pipe 4 can be disassembled from the bracket 2, so that a single component can be easily replaced after being damaged, thereby extending the service life of the ear cleaning ball and reducing the cost of use.

[0026] like Figure 4 As shown, a blocking structure 7 is provided in both the air intake pipe 3 and the exhaust pipe 4 , and the air intake pipe 3 , the exhaust pipe 4 and the blocking structure 7 form a one-way dual-channel structure.

[0027] Specifically, the blocking structure 7 is composed of a spring 71 and a blocking ball 72 . The blocking ball 72 is suspended at the lower part of the intake pipe 3 by the spring 71 , and another blocking ball 72 is supported at the upper part of the exhaust pipe 4 by the spring 71 connected thereto.

[0028] Furthermore, the intake pipe 3 is divided into an upper pipe and a lower pipe, and the upper pipe and the lower pipe are connected by a flange 6. A sealing rubber ring is provided in the flange 6 to prevent air leakage after the upper and lower pipes are connected. Similarly, the exhaust pipe 4 is also divided into an upper pipe and a lower pipe, and the upper and lower pipes are also connected by a flange 6.

[0029] like Figure 4 As shown, the upper end of the spring 71 in the intake pipe 3 is fixed in the upper tube, and the lower end is fixed to the blocking ball 72. The lower tube is provided with a suction nozzle 31, which transitions upward and is connected to an inwardly-retracted portion 32 directed downward, and the inwardly-retracted portion 32 abuts against the blocking ball 72.

[0030] like Figure 4As shown, the spring 71 in the exhaust pipe 4 has its lower end fixed in the lower tube, and its upper end fixed to the blocking ball 72. The lower tube is provided with an air outlet 41, and the air outlet 41 is located below the spring 71. The upper tube is provided with a downwardly directed outward expansion portion 42, and the outward expansion portion 42 abuts against the blocking ball 72.

[0031] In this embodiment, the sphere 1 is squeezed first, and the air in the sphere 1 enters the exhaust pipe 4. The airflow drives the blocking ball 72 in the exhaust pipe 4 to move downward, and a gap is generated between the blocking ball 72 and the outward expansion portion 42. The air is discharged outward from the gap. Then the suction nozzle 31 of the air inlet pipe 3 is placed in the pipette, and the sphere 1 is released. The sphere 1 recovers its deformation, the pressure in the sphere 1 decreases, and the liquid enters the pipette under the action of atmospheric pressure. At this time, air enters the air inlet pipe 3, and the airflow drives the blocking ball 72 in the air inlet pipe 3 to move upward, so that there is a gap between the blocking ball 72 and the inward expansion portion 32. The air passes through the gap and enters the sphere 1 through the air inlet pipe 3.

[0032] During use, when more liquid needs to be transferred, the experimenter squeezes and releases the ball 1 alternately, so that the airflow moves unidirectionally with the trajectory of the air inlet pipe 3 → ball 1 → exhaust pipe 4, and so on. The liquid level in the pipette continues to rise until it rises to the height required by the experimenter. There is no need to move the ear cleaning bulb away from the pipette multiple times. It is only necessary to repeatedly squeeze and release the ball 1 to make the pipette continuously absorb the experimental liquid, thereby improving the experimenter's pipetting efficiency.

[0033] It is understandable that the upper tube of the intake pipe 3 and the upper tube of the exhaust pipe 4 are both fixedly mounted with a support ring 8, and the support ring 8 is fixedly mounted with a sealing gasket 9, which can improve the air tightness of the intake pipe 3 and the exhaust pipe 4 after assembly.

[0034] Working principle: first squeeze the sphere 1, the air in the sphere 1 enters the exhaust pipe 4, and the airflow drives the blocking ball 72 in the exhaust pipe 4 to move downward, creating a gap between the blocking ball 72 and the outward expansion portion 42, and the air is discharged outward from the gap, then place the suction nozzle 31 of the air inlet pipe 3 in the pipette, release the sphere 1, the sphere 1 recovers its deformation, the pressure in the sphere 1 decreases, and the liquid enters the pipette under the action of atmospheric pressure. At this time, air enters the air inlet pipe 3, and the airflow drives the blocking ball 72 in the air inlet pipe 3 to move upward, so that there is a gap between the blocking ball 72 and the inward expansion portion 32, and the air passes through the gap and enters the sphere 1 through the air inlet pipe 3. The experimenter squeezes and releases the sphere 1 alternately, and the liquid level in the pipette continues to rise until it rises to the height required by the experimenter.

[0035] In summary, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A one-way ear cleaning ball, characterized in that: include: A sphere (1), wherein the sphere (1) is connected to an air intake pipe (3) and an exhaust pipe (4); A blocking structure (7) is provided in both the air intake pipe (3) and the exhaust pipe (4), and the air intake pipe (3), the exhaust pipe (4) and the blocking structure (7) form a one-way dual-channel structure; The blocking structure (7) is composed of a spring (71) and a blocking ball (72); the blocking ball (72) is suspended at the lower part of the intake pipe (3) via the spring (71); and the other blocking ball (72) is supported at the upper part of the exhaust pipe (4) via the spring (71) connected thereto.

2. A one-way ear cleaning ball according to claim 1, characterized in that: The sphere (1) is fixedly mounted with a bracket (2), the bracket (2) is a hollow rod-shaped structure, and the bracket (2) is connected to the sphere (1).

3. A one-way ear cleaning ball according to claim 2, characterized in that: The bracket (2) is provided with a first air port (21) and a second air port (22).

4. A one-way ear cleaning ball according to claim 2, characterized in that: The air intake pipe (3) and the exhaust pipe (4) are connected to the sphere (1) via the bracket (2); a connector (5) is provided at the top of each of the air intake pipe (3) and the exhaust pipe (4); and the connector (5) is threadedly connected to the bracket (2).

5. The one-way ear cleaning ball according to claim 1, characterized in that: The air intake pipe (3) is divided into an upper pipe and a lower pipe, the spring (71) is fixedly installed in the upper pipe, and the lower pipe is provided with a suction nozzle (31).

6. The one-way ear cleaning ball according to claim 5, characterized in that: The suction nozzle (31) transitions upward and is connected to an inwardly-retracted portion (32) directed downward, and the inwardly-retracted portion (32) abuts against the blocking ball (72).

7. The one-way ear cleaning ball according to claim 1, characterized in that: The exhaust pipe (4) is divided into an upper pipe and a lower pipe, the lower pipe is fixedly mounted with the spring (71), the lower pipe is provided with an air outlet (41), and the air outlet (41) is located below the spring (71).

8. The one-way ear cleaning ball according to claim 7, characterized in that: The upper tube is provided with an outwardly expanding portion (42) directed downward, and the outwardly expanding portion (42) abuts against the blocking ball (72).

9. The one-way ear cleaning ball according to claim 5, characterized in that: A support ring (8) is fixedly mounted on the upper tube of the air intake pipe (3), and a sealing gasket (9) is fixedly mounted on the support ring (8).

10. The one-way ear cleaning ball according to claim 7, characterized in that: A support ring (8) is fixedly mounted on the upper tube of the exhaust pipe (4), and a sealing gasket (9) is fixedly mounted on the support ring (8).

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