Anti-splashing cotton swab breaking device

By designing an anti-splash swab breakage device, which uses a rubber pad to seal the blade gap and a spring for automatic reset, the problems of sample splashing and test tube compatibility during swab breakage are solved, achieving efficient and safe sample collection and testing.

CN223981856UActive Publication Date: 2026-03-10LANZHOU UNIVERSITY OF TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

When testing specimens, the swab can easily break and cause sample splashing and cross-contamination. In addition, traditional devices are not compatible with test tubes of different sizes, which reduces testing efficiency and safety.

Method used

A splash-proof cotton swab breaking device was designed, comprising a cover, a fixed blade, and a movable blade. The gap between the blades is sealed by a rubber pad, and the device automatically resets with a spring. It is compatible with rubber rings of different test tube sizes to ensure the sealing and convenience of the cotton swab cutting and dropping process.

Benefits of technology

It effectively prevents sample splashing, improves the convenience and safety of operation, reduces the risk of cross-contamination, adapts to test tubes of different specifications, and enhances the versatility and detection efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

An anti-splashing cotton swab breaking device relates to the technical field of specimen detection and comprises a cover body, a fixed blade, a movable blade and a connecting rod, the cover body is mounted at the orifice of the collection test tube, the top is provided with an opening and a mounting cavity, and the fixed blade and the movable blade are respectively mounted on two sides of the mounting cavity; one end of the connecting rod is fixedly connected with the movable blade for driving the movable blade to move and is matched with the fixed blade to shear cotton swabs; mounting plates are arranged at the bottoms of the fixed blade and the movable blade, rubber pads are arranged on the opposite sides of the two mounting plates, the rubber pads make contact with a closed gap when the cotton swabs are sheared, and a sample is effectively prevented from splashing; in addition, a pressing plate is arranged at the extending end of the connecting rod, a spring sleeves a rod body, and conical rubber ring sleeves matched with test tubes of different specifications are arranged in the cover body. The device can ensure the integrity of the sample and the tidiness of the experimental environment, is particularly suitable for the scene that the sample is collected by frequently using cotton swabs, remarkably improves the working efficiency and the operation convenience, and has wide popularization and application values.
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Description

Technical Field

[0001] This utility model relates to the field of specimen testing technology, and in particular to a device for preventing splashing and breaking of cotton swabs. Background Technology

[0002] When testing specimens, especially in scenarios involving the collection of biological samples, it is usually necessary to use cotton swabs to sample specific areas and then place the cotton swabs into a collection tube for subsequent testing procedures.

[0003] Traditional methods of breaking a swab after sample collection and allowing the swab tip to fall into the collection tube often present several drawbacks. Firstly, the manual force applied during the breaking process is difficult to control precisely, easily leading to sample spillage. This not only results in sample loss but, more seriously, can cause cross-contamination, significantly impacting the accuracy of test results and potentially posing biological hazards to the operator.

[0004] On the other hand, traditional methods often have compatibility issues when adapting to different sizes of collection tubes, and cannot well meet diverse needs. This means that when dealing with different types of tubes, additional auxiliary tools or different operating methods are required, which greatly reduces the efficiency of sample collection, increases the complexity of operation, and is not conducive to the efficient implementation and standardized management of the entire testing process. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model discloses a device for preventing splashing and breaking cotton swabs.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0007] A device for preventing splashing and breaking cotton swabs, comprising:

[0008] The cap is installed at the mouth of the collection tube, with an opening at the top and an installation cavity at the top inside corresponding to the opening.

[0009] The fixed blade is installed on one side of the mounting cavity inside the cover.

[0010] The movable blade is slidably connected to the other side of the cover mounting cavity, and is used to work with the fixed blade to cut the cotton swab;

[0011] A connecting rod extends through the cover, with one end of the connecting rod being securely connected to the movable blade to drive the movable blade to move.

[0012] The fixed blade and the movable blade are each provided with a mounting plate below them. The two mounting plates are provided with rubber pads on opposite sides. When cutting the cotton swab, the two rubber pads contact each other to close the gap between the movable blade and the fixed blade.

[0013] Preferably, a pressing plate is provided at one end of the connecting rod extending out of the cover.

[0014] Preferably, a spring is fitted onto the rod body corresponding to the area between the pressing plate and the cover.

[0015] Preferably, the cover body is provided with a rubber ring for adapting to different sizes of collection tubes, and the inner hole of the rubber ring has a conical structure.

[0016] Preferably, the cover has a sloping structure at the top of its opening.

[0017] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0018] This invention utilizes rubber pads on the bottom mounting plates of the fixed and movable blades. When cutting cotton swabs, the two rubber pads come into contact with each other, which seals the gap between the blades. This effectively prevents the sample from splashing and spilling during the cutting process, ensuring the integrity of the sample and the cleanliness of the experimental environment.

[0019] This utility model features a pressing plate, which facilitates user operation of the pressing connecting rod, making the movement of the movable blade easier and more convenient, improving work efficiency, and reducing the difficulty of operation. It is especially suitable for scenarios where cotton swabs are frequently used to collect samples.

[0020] The spring fitted on the connecting rod of this utility model can automatically retract the movable blade after the cutting operation is completed, ensuring that the cut cotton swab falls smoothly and automatically into the collection tube without the need for manual separation, thus simplifying the operation process and improving the accuracy and convenience of collection.

[0021] The inner hole of the rubber ring inside the cover of this utility model has a conical structure, which can be adapted to a variety of different specifications of collection tubes, greatly improving the versatility and practicality of the device, meeting the needs of different laboratories or medical sites for different specifications of test tubes, reducing the cost of repeated purchase and replacement of equipment. In addition, the installation and disassembly avoid the tightening and loosening operations required by the threaded connection in the traditional device, thus making it more convenient and time-saving.

[0022] This invention features two rubber pads that are in close contact with two blades, covering the opening of the cover and forming a relatively closed surface. This effectively prevents the sample from splashing out during the swab's fall, significantly enhancing the sealing performance of the cover, effectively reducing the risk of sample contamination, and ensuring the reliability of subsequent test results. Attached Figure Description

[0023] Figure 1 This is an axial view of the cover assembly;

[0024] Figure 2 This is a cross-sectional view of the cover assembly;

[0025] Figure 3 This is a bottom view of the cover assembly;

[0026] Figure 4 This is a front view of the tool assembly;

[0027] Figure 5 This is a top view of the tool assembly;

[0028] Figure 6 This is a perspective view of the rubber ring.

[0029] Figure 7 This is a cross-sectional view of the rubber ring.

[0030] In the diagram: 1. Movable blade; 2. Fixed blade; 3. Rubber pad; 4. Spring; 5. Pressing plate; 6. Connecting rod; 7. Rubber ring; 8. Cover; 9. Slope structure. Detailed Implementation

[0031] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Example 1:

[0035] Combined with appendix Figures 1-7 A splash-proof cotton swab-cutting device includes a cover 8, a fixed blade 2, and a movable blade 1. The cover 8 can be installed at the mouth of a collection tube, and has an opening at its top. A mounting cavity is provided at the inner top corresponding to the opening. The fixed blade 2 is fixedly connected to one side of the mounting cavity of the cover 8; while the movable blade 1 is slidably connected to the other side of the mounting cavity. The movable blade 1 and the fixed blade 2 work together to cut the cotton swab. A connecting rod 6 is provided on the side of the cover 8 corresponding to the movable blade 1. The connecting rod 6 movably passes through the cover 8, and one end is tightly connected to the movable blade 1, thereby driving the movable blade 1 to move and thus achieving the cutting action.

[0036] Specifically, both the fixed blade 2 and the movable blade 1 are equipped with mounting plates below them, and rubber pads 3 are provided on opposite sides of these two mounting plates. During the cutting of the cotton swab, the two rubber pads 3 come into contact with each other, thereby sealing the gap between the movable blade 1 and the fixed blade 2 and clamping the cotton swab. This effectively prevents the sample from splashing out during the cutting of the cotton swab and avoids the sample end from vibrating due to shearing force, which could contaminate the sample collection device.

[0037] Furthermore, a pressing plate 5 is provided at the end of the connecting rod 6 that extends out of the cover 8. This design facilitates user operation, making pressing the connecting rod 6 easier and more convenient. Simultaneously, a spring 4 is fitted onto the rod portion of the connecting rod 6 corresponding to the pressing plate 5 and the cover 8. After the cutting operation is completed, the movable blade 1 automatically retracts due to the elastic force of the spring 4, allowing the cut swab to fall smoothly and automatically into the collection tube.

[0038] In addition, the cover 8 has a rubber ring 7 inside to accommodate different sizes of collection tubes. The inner hole of the rubber ring 7 has a conical structure, which allows it to fit various collection tubes of different sizes, thus greatly improving the practicality of the device. At the top of the cover 8 corresponding to its opening, a sloped structure 9 is also specially provided, further optimizing the overall design and giving the user a clearer and wider field of vision during operation.

[0039] In practical use, the first step is to accurately install the end of the cover 8 with the rubber ring 7 onto the selected collection tube, and carefully check whether the installation is firm and reliable to ensure that the entire device can function stably during use. When it is necessary to cut the cotton swab, the operator holds the cotton swab in one hand and inserts it into the cover 8, while pressing the pressing plate 5 with the other hand. At this time, the mating assembly consisting of the movable blade 1 and the rubber pad 3 begins to move forward after being subjected to force. Initially, the two rubber pads 3 meet first and tightly clamp the cotton swab. Then, the sharp blade applies a squeezing and cutting force to the cotton swab, eventually cutting it successfully. Throughout the process, the clamping effect of the rubber pad 3 is crucial, as it effectively prevents the cotton swab from vibrating due to cutting, thereby avoiding sample splashing. During the cutting operation, the movable blade 1, the fixed blade 2, and the rubber pad 3 maintain close contact, so that the opening of the cover 8 is completely covered, forming a relatively closed surface. This effectively prevents the sample from splashing out during the drop of the cotton swab, thereby significantly enhancing the sealing performance of the cover 8 and effectively reducing the risk of possible contamination.

[0040] When the staff releases the pressing plate 5, the entire device will automatically return to its initial position under the force generated by the spring 4. The two tightly fitted components will then separate, reopening the port for the next sample collection operation. This cycle repeats, ensuring the efficient and orderly conduct of sample collection.

[0041] After each set of samples is collected, the operator must unscrew the cap 8 and then cover the collection tube with the specially provided sealing cap to ensure proper preservation of the sample inside. Simultaneously, the anti-splash swab breakage device in this embodiment requires appropriate disinfection. After this series of standardized operations, the device can be reused and continue to function in subsequent sample collection work.

[0042] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. A device for preventing splintering of a cotton swab, the device comprising: The device comprises: a cover (8) installed on the mouth of a collection test tube, the top of which is provided with an opening, and the inner top of which is provided with a mounting cavity corresponding to the position of the opening; a fixed blade (2) installed on one side of the mounting cavity of the cover (8); a movable blade (1) slidably connected to the other side of the mounting cavity of the cover (8) and used for cooperating with the fixed blade (2) to shear a cotton swab; a connecting rod (6) movably penetrating the cover (8), one end of which is fixedly connected with the movable blade (1) and used for driving the movable blade (1) to move; wherein the lower part of the fixed blade (2) and the movable blade (1) is provided with a mounting plate, and the opposite side of the two mounting plates is provided with a rubber pad (3), so that the two rubber pads (3) correspondingly contact and close the gap between the movable blade (1) and the fixed blade (2) when shearing the cotton swab.

2. The device according to claim 1, characterized in that: one end of the connecting rod (6) extending out of the cover (8) is provided with a pressing plate (5).

3. The device according to claim 2, characterized in that: a spring (4) is sleeved on the rod body between the pressing plate (5) and the cover (8) corresponding to the connecting rod (6).

4. The device according to claim 1, characterized in that: the cover (8) is provided with a rubber ring (7) inside for adapting to different specifications of collection test tubes, and the inner hole of the rubber ring (7) is in a tapered structure.

5. The device according to claim 1, characterized in that: the cover (8) is provided with a slope body structure (9) corresponding to the position of the top of the opening thereof.