Sampling device for hair detection

Abstract

The utility model relates to a sampling device for hair detection, which is characterized in that two ends of a first transverse plate are provided with first rotating grooves, two sides of the first transverse plate are provided with sampling arms, one end of each sampling arm extends into the corresponding first rotating groove and is rotatably connected with the first transverse plate through a shaft pin, and a second transverse plate is arranged below the first transverse plate and is arranged between the two sampling arms; second rotating grooves are formed in the two ends of the second transverse plate and the middle position of the sampling arm, the two ends of a linkage rod arranged between the second transverse plate and the sampling arm extend into the second rotating grooves, the linkage rod is rotationally connected with the sampling arm and the second transverse plate through shaft pins, and an electric push rod is fixedly connected between the second transverse plate and the first transverse plate; blades are fixed at the lower ends of the two sampling arms. The handheld structure of the sampling device for hair detection is formed by assembling a plurality of sampling rods, the length of the handheld structure of the sampling device can be changed, and the equipped camera provides a good visual field for sampling personnel, so that hair can be quickly and accurately clamped, and the working efficiency of hair sampling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of testing or analyzing materials by means of measuring the chemical or physical properties of the materials, in particular to a sampling device for hair detection. Background Art

[0002] With the advancement of science and technology, hair testing technology is also constantly developing. Hair testing is an important biological testing technique that primarily relies on the fixation and retention properties of specific substances in hair. Hair examination involves the morphological examination and compositional analysis of hair and is one of the forensic evidence testing procedures. Through hair morphological examination, color comparison, inorganic element analysis, blood type and gender determination, lesion examination, and injury examination, it can identify individual characteristics and infer occupation, living environment, disease status, amputation method, and type of injury. It is widely used in various fields, including medicine, forensic identification, and drug control.

[0003] A Chinese utility model patent with publication number CN210166162U and an authorization publication date of March 20, 2020, discloses a hair sampling device comprising a first scissor arm, a second scissor arm, a third scissor arm, a fourth scissor arm, a first handle, and a second handle. The first scissor arm and the second scissor arm are cross-hinged and cooperate to form a first scissor, and the third scissor arm and the fourth scissor arm are cross-hinged and cooperate to form a second scissor, with a gap between the first and second scissors. The hair sampling device utilizes the first, second, third, and fourth scissor arms to form a first scissor and a second scissor, with a gap between the first and second scissors. This allows the first and second scissors to be controlled to cut a hair sample of appropriate length between the first and second scissors. Due to the synchronized movement of the first and second scissors, the length of the cut hair sample is highly consistent, which improves the accuracy of the test results. Furthermore, the entire hair sampling process is simple to operate and highly efficient.

[0004] The handheld structure of the above-mentioned existing sampling device has a fixed length. When clamping hair, the sampling device is not long enough, which increases the difficulty of sampling. Moreover, the sampling device blocks the field of vision of the sampler, making it difficult for the sampler to clamp the hair quickly and accurately, thereby reducing the efficiency of hair sampling and failing to meet actual usage needs. Utility Model Content

[0005] The present utility model aims to provide a hair sampling device for hair detection, so as to solve the problem mentioned in the background art above that the handheld structure of the existing sampling device is fixed in length, which increases the difficulty of sampling when clamping hair. In addition, the sampling device blocks the sampling person's field of vision, making it difficult to quickly and accurately clamp hair, thereby reducing hair sampling efficiency and failing to meet actual usage requirements.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] The cam is secured to the base with two cams secured to the bottom of the base, and the cam has a latching mechanism secured to a pin of the base for holding the base in a forward direction and securing the base to the cam face.

[0008] Preferably, a first sampling rod is provided above the first horizontal plate and is fixedly connected to the first horizontal plate, a second sampling rod is provided above the first sampling rod, and a hand-held rod is provided above the second sampling rod, and wiring cavities are provided inside the first sampling rod, the upper ends of the first sampling rod and the second sampling rod are provided with connecting seats, and the connecting seats are fixedly connected to the first sampling rod and the second sampling rod, the lower ends of the second sampling rod and the hand-held rod are provided with connecting heads, and the connecting heads are fixedly connected to the second sampling rod and the hand-held rod, and the connecting heads are threadedly connected to the connecting seat.

[0009] Preferably, a switch button is provided inside the hand-held rod and the switch button is connected to the hand-held rod as a whole, and a control line is provided inside the wiring cavity and the control line is electrically connected to the electric push rod, the connecting seat, the connecting head and the switch button.

[0010] Preferably, a camera is provided at the center of the lower end of the second horizontal plate and the camera is connected to the second horizontal plate by screws, and the camera is independently powered by a built-in button battery.

[0011] Preferably, a display screen is provided on one side of the lower end of the hand-held rod and is fixedly connected to the hand-held rod. The display screen is independently powered by a built-in button battery and is wirelessly connected to the camera.

[0012] Preferably, rubber pads are provided on the inner sides of the two sampling arms and the rubber pads fit the sampling arms, and the sampling arms are arranged in an L-shape.

[0013] Preferably, a connecting hole is provided on the inner wall of the lower end of the two sampling arms, a connecting block is provided on one side of the rubber pad and the connecting block is fixedly connected to the rubber pad, the connecting block and the connecting hole are arranged correspondingly and the connecting block is plugged into the sampling arm, and the cross-sections of the connecting hole and the connecting block are both set to be square.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This device comprises a first horizontal plate, a sampling arm, a second horizontal plate, an electric push rod, a linkage rod, and a rubber pad. The two sampling arms are placed on either side of the hair. The sampler holds the handle and presses a switch button, turning on the electric push rod to move the second horizontal plate. The moving second horizontal plate then rotates the linkage rod. The rotation of the linkage rod drives the two sampling arms to rotate synchronously, closing their lower ends and clamping them together. The hair is thus clamped and fixed by the sampling arms and cut by the blade, achieving hair sampling.

[0016] 2. The utility model device is provided with a first sampling rod, a second sampling rod, a handheld rod, a connecting base and a connecting head. The connecting head is threadedly connected to the connecting base. The first sampling rod, the second sampling rod and the handheld rod are assembled to form a handheld structure. The sampling length of the sampling device can be changed by adjusting the number of connected sampling rods.

[0017] 3. The utility model device is provided with a camera and a display screen. The camera takes a picture of the hair to be clamped, and the photographed image is displayed on the display screen, which facilitates the sampling personnel to sample the hair accurately. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 For the utility model Figure 1 A partial enlarged view of area A;

[0021] Figure 4 This is a structural diagram of the first sampling rod of the present utility model;

[0022] Figure 5 This is a structural diagram of the second sampling rod of the present utility model;

[0023] Figure 6 For the utility model Figure 2 A partial enlarged view of area B.

[0024] In the figure: 1. First horizontal plate; 2. Sampling arm; 3. Second horizontal plate; 4. Electric push rod; 5. Linkage rod; 6. First rotating slot; 7. Second rotating slot; 8. Axis pin; 9. Camera; 10. Rubber pad; 11. First sampling rod; 12. Second sampling rod; 13. Hand-held rod; 14. Switch button; 15. Display screen; 16. Wiring cavity; 17. Connecting seat; 18. Connector; 19. Control line; 20. Connecting hole; 21. Connecting block; 22. Blade. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] like Figure 1-6 As shown, the present invention provides an embodiment:

[0027] A hair detection sampling device includes a first transverse plate 1 and an axle pin 8. Each end of the first transverse plate 1 is provided with a first rotation slot 6, i.e., two first rotation slots 6 are provided. A sampling arm 2 is provided on each side of the first transverse plate 1, i.e., two sampling arms 2 are provided. One end of the sampling arm 2 extends into the interior of the first rotation slot 6, and the sampling arm 2 is rotationally connected to the first transverse plate 1 via the axle pin 8. A second transverse plate 3 is provided below the first transverse plate 1 and is positioned between the two sampling arms 2. Each end of the second transverse plate 3 is provided with a second rotation slot 7, and each sampling arm 2 is also provided with a second rotation slot 7 in the middle. A linkage rod 5 is provided between the second transverse plate 3 and the sampling arm 2, with both ends of the linkage rod 5 extending into the interior of the second rotation slots 7 on the second transverse plate 3 and the sampling arm 2, respectively. The linkage rod 5 is rotationally connected to the sampling arm 2 and the second transverse plate 3 via the axle pin 8. An electric push rod 4 is provided between the second transverse plate 3 and the first transverse plate 1 and is fixedly connected to the first transverse plate 1 and the second transverse plate 3. The lower ends of the two sampling arms 2 are each provided with a blade 22, and the blade 22 is fixedly connected to the sampling arms 2. A first sampling rod 11 is provided above the first horizontal plate 1, and the first sampling rod 11 is fixedly connected to the first horizontal plate 1. A second sampling rod 12 is provided above the first sampling rod 11, and a hand-held rod 13 is provided above the second sampling rod 12. A wiring cavity 16 is provided inside the first sampling rod 11, the second sampling rod 12, and the hand-held rod 13. The upper ends of the first sampling rod 11 and the second sampling rod 12 are each provided with a connecting seat 17, and the connecting seat 17 is fixedly connected to the first sampling rod 11 and the second sampling rod 12. The lower ends of the second sampling rod 12 and the hand-held rod 13 are each provided with a connector 18, and the connector 18 is fixedly connected to the second sampling rod 12 and the hand-held rod 13. The connector 18 is threadedly connected to the connecting seat 17. A switch button 14 is provided inside the hand-held rod 13, and the switch button 14 is connected to the hand-held rod 13 as a whole. A control line 19 is provided inside the wiring cavity 16, and the control line 19 is electrically connected to the electric push rod 4, the connecting seat 17, the connecting head 18 and the switch button 14.

[0028] During use: the connecting head 18 is connected to the connecting seat 17, and the first sampling rod 11, the second sampling rod 12 and the hand-held rod 13 are assembled. The connecting head 18 and the connecting seat 17 are made of metal material and can conduct electricity. In this way, the electric push rod 4 is connected to the opening button 14 through the connecting seat 17, the connecting head 18 and the control line 19, and the lower ends of the two sampling arms 2 are placed on both sides of the hair. The sampling personnel holds the hand-held rod 13 and presses the switch button 14, turns on the electric push rod 4 to drive the second horizontal plate 3 to rise, and the rising second horizontal plate 3 drives the linkage rod 5 to rotate. As the linkage rod 5 rotates, the two sampling arms 2 are driven to rotate synchronously. When the sampling arms 2 rotate, their lower ends gradually come together to contact the hair and clamp the hair. At this time, the blades 22 at the lower ends of the two sampling arms 2 also contact the lower part of the hair, and the blades 22 are used to cut the hair to achieve hair sampling.

[0029] For example Figure 1 and Figure 2 As shown, a camera 9 is provided at the center of the lower end of the second horizontal plate 3 and the camera 9 is connected to the second horizontal plate 3 by screws. The camera 9 is independently powered by a built-in button battery. A display screen 15 is provided on one side of the lower end of the hand-held rod 13 and the display screen 15 is fixedly connected to the hand-held rod 13. The display screen 15 is independently powered by a built-in button battery and is wirelessly connected to the camera 9. When sampling, the camera 9 is turned on to shoot the clamped hair. The shot image is fed back to the display screen 15 by wireless transmission, providing a good field of view for the sampling staff, making it convenient for the sampling staff to accurately sample the hair.

[0030] For example Figure 1 、 Figure 2 and Figure 6 As shown, rubber pads 10 are provided on the inner sides of the two sampling arms 2, and the rubber pads 10 fit together with the sampling arms 2. The sampling arms 2 are set in an L shape, and connecting holes 20 are provided on the inner walls of the lower ends of the two sampling arms 2. A connecting block 21 is provided on one side of the rubber pad 10, and the connecting block 21 is fixedly connected to the rubber pad 10. The connecting block 21 is set corresponding to the connecting hole 20, and the connecting block 21 is plugged into the sampling arm 2. The cross-sections of the connecting hole 20 and the connecting block 21 are both set to be square. The connecting block 21 is aligned with the connecting hole 20 and inserted into the connection. The rubber pad 10 is installed on the sampling arm 2. The installed rubber pad 10 will first contact the clamped hair to pre-fix the hair to be sampled. At this time, the hair has not yet contacted the blade 22. As the sampling arm 2 is clamped, the rubber pad 10 is squeezed and deformed, which can fix the hair more firmly, making it easier for the lower part of the hair to be cut off and removed by the blade 22.

[0031] The working principle of the hair detection sampling device of this utility model:

[0032] The sampling rods are assembled according to the sampling requirements, with the two sampling arms 2 placed on either side of the hair. The sampler holds the handle 13 and presses the switch button 14, turning on the electric push rod 4, which drives the second cross plate 3 upward, thereby driving the linkage rod 5 to rotate. The linkage rod 5 rotates, causing the two sampling arms 2 to rotate synchronously, and the lower ends of the sampling arms 2 gradually close together, contacting the hair and clamping the hair. During this process, the rubber pad 10 first contacts the clamped hair to pre-fix the hair to be sampled. As the lower ends of the sampling arms 2 close together and clamp, the rubber pad 10 is squeezed and deformed, more firmly securing the hair. At this time, the blades 22 at the lower ends of the two sampling arms 2 also contact the lower portion of the hair, and the blades 22 are used to cut the hair to complete the hair sampling. During sampling, the camera 9 is turned on to capture the hair to be clamped. The captured image is fed back to the display screen 15 via wireless transmission, providing the sampling staff with a good field of view and facilitating accurate hair sampling.

[0033] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] 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 sampling device for hair detection, comprising a first transverse plate (1) and an axle pin (8), characterized in that: Both ends of the first transverse plate (1) are provided with first rotation grooves (6), and there are two first rotation grooves (6). Both sides of the first transverse plate (1) are provided with sampling arms (2), and there are two sampling arms (2). One end of the sampling arm (2) extends to the inside of the first rotation groove (6). The sampling arm (2) and the first transverse plate (1) are rotatably connected through an axle pin (8). A second transverse plate (3) is provided below the first transverse plate (1) and the second transverse plate (3) is provided between the two sampling arms (2). Both ends of the second transverse plate (3) and the middle position of the sampling arm (2) are provided with A second rotating groove (7) is provided, a linkage rod (5) is provided between the second transverse plate (3) and the sampling arm (2), and both ends of the linkage rod (5) extend to the inside of the second rotating groove (7), the linkage rod (5) is rotatably connected to the sampling arm (2) and the second transverse plate (3) through an axle pin (8), an electric push rod (4) is provided between the second transverse plate (3) and the first transverse plate (1), and the electric push rod (4) is fixedly connected to the first transverse plate (1) and the second transverse plate (3), and a blade (22) is provided at the lower end of each of the two sampling arms (2), and the blade (22) is fixedly connected to the sampling arm (2).

2. The hair detection sampling device according to claim 1, characterized in that: A first sampling rod (11) is provided above the first transverse plate (1) and the first sampling rod (11) is fixedly connected to the first transverse plate (1); a second sampling rod (12) is provided above the first sampling rod (11); a hand-held rod (13) is provided above the second sampling rod (12); a wiring cavity (16) is provided inside the first sampling rod (11), the second sampling rod (12) and the hand-held rod (13); a connecting seat (17) is provided at the upper end of the first sampling rod (11) and the second sampling rod (12), and the connecting seat (17) is fixedly connected to the first sampling rod (11) and the second sampling rod (12); a connecting head (18) is provided at the lower end of the second sampling rod (12) and the hand-held rod (13), and the connecting head (18) is fixedly connected to the second sampling rod (12) and the hand-held rod (13); the connecting head (18) is threadedly connected to the connecting seat (17).

3. The hair detection sampling device according to claim 2, characterized in that: A switch button (14) is provided inside the hand-held rod (13), and the switch button (14) is connected to the hand-held rod (13) as a whole. A control line (19) is provided inside the wiring cavity (16), and the control line (19) is electrically connected to the electric push rod (4), the connecting seat (17), the connecting head (18) and the switch button (14).

4. The hair detection sampling device according to claim 3, characterized in that: A camera (9) is provided at the center of the lower end of the second horizontal plate (3), and the camera (9) is connected to the second horizontal plate (3) via screws. The camera (9) is independently powered by a built-in button battery.

5. The hair detection sampling device according to claim 4, characterized in that: A display screen (15) is provided on one side of the lower end of the handheld rod (13), and the display screen (15) is fixedly connected to the handheld rod (13). The display screen (15) is independently powered by a built-in button battery and is wirelessly connected to the camera (9).

6. The hair detection sampling device according to claim 1, characterized in that: The inner sides of the two sampling arms (2) are both provided with rubber pads (10), and the rubber pads (10) fit in contact with the sampling arms (2), and the sampling arms (2) are arranged in an L-shape.

7. The hair detection sampling device according to claim 6, characterized in that: A connecting hole (20) is provided on the inner wall of the lower end of the two sampling arms (2), a connecting block (21) is provided on one side of the rubber pad (10), and the connecting block (21) is fixedly connected to the rubber pad (10), the connecting block (21) and the connecting hole (20) are arranged correspondingly, and the connecting block (21) and the sampling arm (2) are plugged, and the cross-sections of the connecting hole (20) and the connecting block (21) are both set to be square.

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