A hair sample collection device

Abstract

This utility model relates to the field of hair sample collection and discloses a hair sample collection device, including a sleeve, a base, and a receiving tube. The receiving tube is fixedly installed on the surface of the sleeve and can be inserted into the interior of the base. When the two are inserted together, the end of the base fits against the surface of the sleeve. The device achieves efficient sealing of the interior of the receiving tube through a sealing structure on the inner wall of the top of the base precisely matching the annular notch at the end of the receiving tube. The arc-shaped protrusion made of rubber deforms during insertion, completely filling the internal space of the annular notch, thoroughly blocking the connection between the receiving tube and the outside world. This effectively prevents external contaminants such as dust, moisture, and microorganisms from entering the interior of the receiving tube, preventing problems such as deterioration and contamination of the hair sample.

Description

Technical Field

[0001] This utility model relates to the field of hair sample collection, specifically a hair sample collection device. Background Technology

[0002] In fields such as medical testing, forensic identification, and biological research, hair samples are crucial biological samples, and the standardization of their collection and preservation directly affects the accuracy and reliability of subsequent test results. Currently, the industry mainly relies on traditional methods for collecting hair samples, such as using ordinary paper envelopes, plastic sealed bags, or simple test tubes. However, these traditional collection methods have many unavoidable problems in practical applications and cannot meet the needs of precise and standardized sample processing.

[0003] First, insufficient sealing performance is one of the core pain points of traditional collection methods. Ordinary paper envelopes lack waterproof and contamination-proof capabilities, making hair samples susceptible to dust, moisture, and microorganisms in the external environment, leading to sample deterioration or contamination, which in turn affects the effectiveness of subsequent testing procedures such as DNA extraction and component analysis. Although plastic sealed bags have a certain degree of waterproofness, gaps can easily appear at the bag opening due to improper handling, and the bag may be damaged due to compression during transportation or storage, also posing a risk of sample leakage. Simple test tubes mostly use ordinary rubber stoppers or screw caps for sealing. Rubber stoppers are prone to aging and deformation with long-term use, and screw caps may become loose due to thread wear, failing to create a stable sealing environment and making it difficult to guarantee the integrity of the sample.

[0004] Secondly, poor structural stability makes samples susceptible to damage during storage. Traditional containers lack specialized fixing and protective structures, causing hair samples to rub and entangle as the container shakes during transportation or movement. This can not only cause samples to break or fall off, but also lead to secondary contamination due to cross-contamination between samples. Some containers (such as paper envelopes and thin-walled plastic bottles) have low inherent strength and are easily deformed when subjected to external pressure, further aggravating the damage to the samples and causing great inconvenience to subsequent testing.

[0005] Furthermore, the lack of ease of operation increases the difficulty for staff. The opening and closing methods of traditional containers are quite cumbersome. For example, screw-cap test tubes require multiple rotations to open and close, and paper envelopes require repeated pasting or tearing of the seal. This not only wastes operation time but may also cause samples to fall out due to improper operation during the opening and closing process. At the same time, traditional containers lack standardized assembly structures, and different types and specifications of containers cannot achieve unified operation, which is not conducive to the efficient implementation of large-scale sample collection and management. Therefore, we propose a hair sample collection device. Utility Model Content

[0006] To address the shortcomings of existing technologies, this invention provides a hair sample collection device that solves the aforementioned problems.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a hair sample collection device, comprising a sleeve, a base, and a receiving tube, wherein the receiving tube is fixedly installed on the surface of the sleeve, and the receiving tube can be inserted into the interior of the base. When the two are inserted together, the end of the base is attached to the surface of the sleeve.

[0008] Preferably, a sealing structure is provided on the top inner wall of the base, and an annular notch is provided at the end of the receiving tube. When the receiving tube is inserted into the base, the sealing structure is inserted into the inner wall of the annular notch.

[0009] Preferably, the sealing structure includes an annular protrusion integrally formed on the top inner wall of the base and an arc-shaped protrusion fixedly installed on the lower wall of the annular protrusion, wherein the cross-section of the arc-shaped protrusion is semi-circular.

[0010] Preferably, the arc-shaped protrusion is made of rubber.

[0011] Preferably, the outer side of the receiving tube is provided with external threads, and the inner wall surface of the base is provided with internal threads, and the receiving tube and the receiving tube are threaded together.

[0012] Preferably, the bottom of the sleeve is integrally formed with a T-shaped protrusion, and the lower end of the base is provided with a snap-fit ​​groove, and the T-shaped protrusion is snapped together with the snap-fit ​​groove.

[0013] Preferably, the snap-fit ​​groove includes an annular groove formed at the bottom of the base and a T-shaped groove formed on the inner wall of one side of the annular groove.

[0014] Compared with the prior art, the present invention provides a hair sample collection device, which has the following beneficial effects: I. Excellent sealing performance, ensuring sample integrity The device achieves a highly efficient seal inside the receiving tube by precisely fitting the sealing structure on the inner wall of the base with the annular notch at the end of the receiving tube. The arc-shaped rubber protrusion deforms during insertion, completely filling the internal space of the annular notch and effectively blocking the connection between the receiving tube and the outside environment. This prevents external contaminants such as dust, moisture, and microorganisms from entering the receiving tube, thus preventing deterioration and contamination of the hair sample. Simultaneously, the stable sealed environment prevents accidental sample loss during transportation and storage, maximizing the integrity of the hair sample and providing a reliable guarantee for the accuracy of subsequent DNA extraction, component analysis, and other testing procedures.

[0015] II. Strong structural stability reduces the risk of sample damage. The device employs an integrated assembly structure of "sleeve-receiving tube-base". The sleeve provides a stable mounting foundation for the receiving tube, and the receiving tube and base are tightly fitted through plug-in, threaded, or snap-fit ​​connections, making the entire device compact and resistant to shaking during use. This stable structural design not only prevents hair samples from rubbing and tangling due to container shaking during transportation and movement, reducing the likelihood of sample breakage and detachment, but also enhances the overall strength of the device through the support of the sleeve and base. This reduces the risk of deformation caused by external pressure on traditional containers such as paper envelopes and thin-walled plastic bottles, further minimizing the possibility of sample damage due to container failure and providing reliable protection for the samples.

[0016] III. Convenient and efficient operation, improving work efficiency. The device features an optimized connection design, balancing connection stability and ease of operation. Firstly, the threaded connection in Embodiment 2 ensures a secure connection between the receiving tube and the base. Secondly, the T-shaped protrusion and snap-fit ​​groove structure in Embodiment 3 allows for connection between the base and the sleeve in just two steps: alignment and insertion followed by rotation and snap-fit. This eliminates the need for multiple rotations required for traditional screw-cap test tubes, significantly simplifying the opening and closing process and saving operators time. Furthermore, the standardized structural design allows for uniform operation across different batches of devices, avoiding the significant differences in operation between different container sizes common in traditional systems. This facilitates efficient large-scale sample collection and management, effectively improving overall work efficiency.

[0017] IV. Facilitates sample identification and traceability, meeting the needs of modern management. The device's structural design facilitates sample identification and traceability. Dedicated identification areas can be pre-reserved on the surface of the sleeve or base, allowing staff to directly record key information such as sample number, collection time, and collector. Compared to traditional containers that rely on stickers or handwriting, this method reduces the risk of blurred or detached markings, ensuring long-term clarity and legibility of sample information. Furthermore, the device's standardized structure better integrates with modern testing equipment and sample management systems, minimizing the need for frequent container changes during testing. This reduces the risk of sample confusion and mishandling, and facilitates end-to-end traceability of hair samples from collection and preservation to testing. It meets the traceability requirements of modern sample management systems, providing strong support for the standardization and informatization of sample management. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the present invention; Figure 3 for Figure 2 AA section view diagram; Figure 4 for Figure 3 A magnified view of section B in the diagram; Figure 5 This is a side view of the present invention; Figure 6 for Figure 5 CC section diagram.

[0019] In the diagram: 1. Sleeve; 2. Base; 3. Receiving tube; 4. Annular protrusion; 5. Arc-shaped protrusion; 6. Annular notch; 7. Annular groove; 8. T-shaped groove; 9. T-shaped protrusion. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-6 The structure is as follows: I. Core Load-Bearing Structure Sleeve 1 The sleeve 1 is the basic support component of the entire device, and its surface serves to fix and install other core components. Specifically, the surface of the sleeve 1 is directly connected to the receiving tube 3, providing a stable mounting base for the receiving tube 3 through fixed installation. This ensures that the receiving tube 3 can maintain its positional stability during subsequent use, without shaking or displacement, and provides reliable structural support for the collection and storage of hair samples.

[0022] Base 2 The base 2, serving as the bottom support and sealing component of the device, has two main functions. First, it has an internal installation space adapted to the receiving tube 3, allowing for its insertion. When the receiving tube 3 is inserted into the base 2, the end of the base 2 fits tightly against the surface of the sleeve 1, making the entire device more compact and enhancing its overall stability. Second, the top inner wall of the base 2 has a sealing structure that cooperates with the annular notch 6 at the end of the receiving tube 3 to achieve a seal inside the receiving tube 3, preventing external contamination of the hair sample during storage and also preventing accidental sample loss.

[0023] Receiving tube 3 The receiving tube 3 is a core component specifically designed for collecting and storing hair samples, and its installation method is closely related to that of the sleeve 1 and the base 2. It is fixedly installed on the surface of the sleeve 1 and can also be inserted into the interior of the base 2, forming a stable assembly structure of "sleeve 1-receiving tube 3-base 2". In actual use, staff can directly place the hair sample into the receiving tube 3, and then achieve sealed storage through its cooperation with the base 2. Furthermore, depending on the design of different embodiments, the receiving tube 3 also possesses different connection characteristics. For example, in embodiment two, it has external threads on its outer side, which can cooperate with the internal threads on the inner wall of the base 2 to achieve a threaded connection; in embodiment three, the connection method with the base 2 is further optimized by utilizing the T-shaped protrusion 9 at the bottom of the sleeve 1 and the snap-fit ​​groove of the base 2.

[0024] II. Sealing and Protection Structure 4 ring-shaped protrusions The annular protrusion 4 is an important component of the sealing structure on the inner wall of the top of the base 2. It is integrally molded and connected to the base 2. This integrated design ensures a firm connection between the annular protrusion 4 and the base 2, preventing it from falling off or being damaged. The main function of the annular protrusion 4 is to provide an installation base for the arc-shaped protrusion 5. The arc-shaped protrusion 5 is directly fixed to its lower wall surface. At the same time, when the receiving tube 3 is inserted and mated with the base 2, the annular protrusion 4 will form a preliminary positioning fit with the annular notch 6 at the end of the receiving tube 3 during the assembly process of the base 2. This lays the groundwork for the subsequent sealing of the arc-shaped protrusion 5 and ensures that the sealing structure can accurately align with the annular notch 6.

[0025] 5 arc-shaped protrusions The arc-shaped protrusion 5 is a key functional component for achieving internal sealing of the receiving tube 3, possessing specific material and structural characteristics. In terms of material, it is made of rubber, which has excellent elasticity and deformation capacity, a crucial prerequisite for achieving a seal. Structurally, its cross-section is semi-circular, a shape design that better fits the annular notch 6 at the end of the receiving tube 3. When the base 2 is inserted into the receiving tube 3, the arc-shaped protrusion 5 directly engages with the interior of the annular notch 6. Due to the elastic properties of rubber, the arc-shaped protrusion 5 deforms, completely filling the internal space of the annular notch 6, thoroughly blocking the communication between the inside of the receiving tube 3 and the outside, effectively ensuring a sealed environment inside the receiving tube 3, and providing crucial protection for the safe storage of hair samples.

[0026] 6-ring gap The annular notch 6 is located at the end of the receiving tube 3 and is a groove structure specifically designed to match the sealing structure of the base 2. Its shape and size match the sealing structure (annular protrusion 4 and arc-shaped protrusion 5) on the inner wall of the top of the base 2. When the receiving tube 3 is inserted into the base 2, the sealing structure of the base 2 can precisely fit into the inner wall of the annular notch 6. Specifically, the arc-shaped protrusion 5 engages inside the annular notch 6 and deforms to fill the gap, while the annular protrusion 4 assists in positioning. Together, they create a tight fit between the sealing structure and the annular notch 6, ultimately achieving an effective seal inside the receiving tube 3. Therefore, the annular notch 6 is a crucial fitting structure for achieving the sealing function.

[0027] III. Optimized Connection Structure Annular groove 7 The annular groove 7 is part of the snap-fit ​​groove at the lower end of the base 2. Located at the bottom of the base 2, its main function is to provide initial insertion space and positioning guidance for the T-shaped protrusion 9. When installing the base 2, the operator first aligns the annular groove 7 with the T-shaped protrusion 9 at the bottom of the sleeve 1, and then inserts the T-shaped protrusion 9 into the annular groove 7. At this point, the annular groove 7 provides temporary accommodating space for the T-shaped protrusion 9, ensuring that it can smoothly enter the connection structure of the base 2, preparing for the subsequent rotational snap-fit ​​step. It is the initial mating structure for the snap-fit ​​connection between the T-shaped protrusion 9 and the base 2.

[0028] T-groove 8 The T-shaped groove 8 is also a snap-fit ​​groove structure at the lower end of the base 2, located on the inner wall of one side of the annular groove 7. Its shape matches the T-shaped protrusion 9, and it is the key structure for achieving a stable snap-fit ​​between the T-shaped protrusion 9 and the base 2. After the T-shaped protrusion 9 is inserted into the annular groove 7, the operator needs to rotate the base 2. As the base 2 rotates, the T-shaped protrusion 9 moves within the annular groove 7 and eventually snaps into the interior of the T-shaped groove 8. Due to the shape limitation of the T-shaped groove 8, once the T-shaped protrusion 9 is snapped in, it cannot be easily disengaged, thus achieving a stable connection between the sleeve 1 and the base 2, thereby indirectly ensuring the stability of the connection between the receiving tube 3 and the base 2. At the same time, this snap-fit ​​method also simplifies the installation and disassembly of the device.

[0029] T-shaped protrusion 9 The T-shaped protrusion 9 is integrally formed at the bottom of the sleeve 1 and is the core mating component for achieving the snap-fit ​​connection between the sleeve 1 and the base 2. Its T-shaped design matches the T-groove 8 in the snap-fit ​​groove at the lower end of the base 2, enabling a stable connection with the base 2 via a snap-fit ​​mechanism. During installation, the T-shaped protrusion 9 is first inserted into the annular groove 7 of the base 2, and then the base 2 is rotated to snap into the T-groove 8, thus firmly connecting the sleeve 1 and the base 2 together. This connection method ensures connection stability while avoiding the hassle of multiple rotations required for threaded connections, simplifying the assembly and disassembly process of the device. It represents an optimized and improved structure for the connection method between the base 2 and the receiving tube 3.

[0030] Example 1: A hair sample collection device includes a sleeve 1, a base 2, and a receiving tube 3. The receiving tube 3 is fixedly installed on the surface of the sleeve 1. The receiving tube 3 can be inserted into the interior of the base 2. When the two are inserted together, the end of the base 2 is attached to the surface of the sleeve 1.

[0031] Furthermore, a sealing structure is provided on the top inner wall of the base 2, and an annular notch 6 is provided at the end of the receiving tube 3. When the receiving tube 3 is inserted into the base 2, the sealing structure is inserted into the inner wall of the annular notch 6.

[0032] Furthermore, the sealing structure includes an annular protrusion 4 integrally formed on the top inner wall of the base 2 and an arc-shaped protrusion 5 fixedly installed on the lower wall of the annular protrusion 4, the arc-shaped protrusion 5 having a semi-circular cross-section.

[0033] Furthermore, the arc-shaped protrusion 5 is made of rubber. When the base 2 is inserted into the receiving tube 3, the arc-shaped protrusion 5 will be engaged inside the annular notch 6. At this time, the arc-shaped protrusion 5 deforms and completely fills the inside of the annular notch 6, maintaining the seal inside the receiving tube 3.

[0034] Example 2, based on Example 1, aims to increase the stability of the connection between the base 2 and the receiving tube 3: The outer side of the receiving tube 3 is provided with external threads, and the inner wall of the base 2 is provided with internal threads. The receiving tube 3 and the receiving tube 3 are threaded together.

[0035] Example 3: Based on Examples 1 and 2, adding a threaded connection increases connection stability, but disassembly requires multiple rotations, which is cumbersome. To further simplify: The bottom of the sleeve 1 is integrally formed with a T-shaped protrusion 9, and the lower end of the base 2 is provided with a snap-fit ​​groove, and the T-shaped protrusion 9 is snapped together with the snap-fit ​​groove.

[0036] The snap-fit ​​groove includes an annular groove 7 at the bottom of the base 2 and a T-shaped groove 8 on the inner wall of one side of the annular groove 7. When the base 2 needs to be installed, align the position of the annular groove 7 with the T-shaped protrusion 9 and then insert it. At this time, the T-shaped protrusion 9 is located inside the annular groove 7. Then rotate the base 2, and the T-shaped protrusion 9 snaps into the inside of the T-shaped groove 8, completing the connection between the two.

[0037] Working principle: When hair needs to be collected, place the hair inside the receiving tube 3, and then put the base 2 on the outside of the receiving tube 3.

[0038] How it works: When you need to collect hair, place the hair inside 3, and then put 2 on the outside of 3.

[0039] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hair sample collection device, characterized in that, It includes a sleeve (1), a base (2) and a receiving tube (3). The receiving tube (3) is fixedly installed on the surface of the sleeve (1). The receiving tube (3) can be inserted into the interior of the base (2). When the two are inserted together, the end of the base (2) is attached to the surface of the sleeve (1).

2. The hair sample collection device according to claim 1, characterized in that: The base (2) has a sealing structure on its top inner wall, and the end of the receiving tube (3) has an annular notch (6). When the receiving tube (3) is inserted into the base (2), the sealing structure is inserted into the inner wall of the annular notch (6).

3. The hair sample collection device according to claim 2, characterized in that: The sealing structure includes an annular protrusion (4) integrally formed on the top inner wall of the base (2) and an arc-shaped protrusion (5) fixedly installed on the lower wall of the annular protrusion (4), the cross-section of the arc-shaped protrusion (5) being semi-circular.

4. The hair sample collection device according to claim 3, characterized in that: The arc-shaped protrusion (5) is made of rubber.

5. The hair sample collection device according to claim 1, characterized in that: The outer side of the receiving tube (3) is provided with external threads, and the inner wall of the base (2) is provided with internal threads. The receiving tube (3) is threaded together with the receiving tube (3).

6. The hair sample collection device according to claim 1, characterized in that: The bottom of the sleeve (1) is integrally formed with a T-shaped protrusion (9), and the lower end of the base (2) is provided with a snap-fit ​​groove, and the T-shaped protrusion (9) is snapped together with the snap-fit ​​groove.

7. A hair sample collection device according to claim 6, characterized in that: The snap-fit ​​groove includes an annular groove (7) formed at the bottom of the base (2) and a T-shaped groove (8) formed on the inner wall of one side of the annular groove (7).

Images