Biological trace check meter

Abstract

The utility model discloses a biological trace check meter which comprises a barrel type biological check meter body and a light source arranged at the end part of the barrel type biological check meter body, the end part of the barrel type biological check meter body is fixedly connected with a limiting ring which is coaxially arranged, and the end part of the barrel type biological check meter body is detachably provided with a protective cover. A rotatable cleaning piece is arranged in the protective cover, a rotating column is rotationally inserted into the side wall of the protective cover, and the cleaning piece is detachably installed at the end of the rotating column. According to the utility model, the motor is started to drive the gear to rotate, and the gear does circular motion along the gear ring, so that the connecting strip is driven to do circular motion synchronously, the rotating column rotates to drive the cleaning piece to rotate, and the cleaning piece cleans the lens of the light source and removes stains on the surface of the lens, thereby ensuring that the light emitted by the light source can be normally emitted in the next use. And no obstruction is caused.

Description

Technical Field

[0001] The utility model relates to the technical field of biological evidence collection, in particular to a biological trace detector. Background Art

[0002] The biological trace detection instrument is a new method for the public security to discover biological traces during on-site investigation. It uses high-power LED lamp beads as the excitation light source, and has the advantages of high light power, narrow spectral line width, and uniform illumination. It is suitable for large-scale on-site searches for biological samples, such as: semen stains, saliva stains, sweat stains, urine stains, nails, teeth, bones, and wall fingerprints, etc. It has stronger detection capabilities than conventional light sources.

[0003] However, after using it for a period of time, impurities will accumulate on the glass cover of the light source, which will affect the output of light, and it has no protective function and is easily damaged. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a biological trace detector to solve the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a biological trace detector, including a cylindrical biological trace detector body, a light source arranged at the end of the cylindrical biological trace detector body, the end of the cylindrical biological trace detector body is fixedly connected to a limit ring arranged coaxially, the end of the cylindrical biological trace detector body is detachably installed with a protective cover, a rotatable cleaning piece is arranged inside the protective cover, a rotating column is rotatably inserted into the side wall of the protective cover, and the cleaning piece is detachably installed at the end of the rotating column.

[0008] Preferably, one end of the rotating column located outside the protective cover is fixedly connected to a connecting strip, the other end of the connecting strip is fixedly connected to a motor, the output end of the motor is fixedly connected to a gear, the outer side of the protective cover is fixedly connected to a gear ring, and the gear is meshed with the gear ring.

[0009] Preferably, the limiting ring is provided with two symmetrically distributed slots, and the side wall of the protective cover is fixedly connected with an insert block, and when the protective cover is assembled with the body of the cylindrical biological testing instrument, the insert block is inserted into the slot.

[0010] Preferably, a magnet is fixedly connected to the inner wall of the slot, the plug block is made of iron, and the magnet adsorbs the plug block.

[0011] Preferably, an end portion of the rotating column located inside the protective cover is provided with an external thread, an internal thread sleeve is fixedly connected to the side wall of the cleaning member, and the end portion of the rotating column is threadedly inserted into the internal thread sleeve.

[0012] Preferably, a coaxially arranged retaining ring is fixedly connected to the rotating column, and the internal threaded sleeve is in contact with the retaining ring.

[0013] (III) Beneficial effects

[0014] The utility model provides a biological trace detector, which has the following beneficial effects:

[0015] 1. In the utility model, a protective cover is installed at the end of the body of the cylindrical biological tester, which firstly protects the lens of the light source. Secondly, by starting the motor, the gear is driven to rotate, and the gear moves in a circular motion along the gear ring, thereby driving the connecting strip to move in a circular motion synchronously. The rotation of the rotating column drives the cleaning part to rotate, and the cleaning part cleans the lens of the light source and removes the stains on its surface, thus ensuring that the light emitted by the light source can be emitted normally without being obstructed when it is used next time.

[0016] 2. In the present invention, the cleaning member can be disassembled from the end of the rotating column, so that the cleaning member can be cleaned regularly to ensure the cleanliness of the cleaning member and to clean the glass lens of the light source normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional structural diagram of a biological trace detector proposed by the utility model, showing a left-side protective cover disassembled state;

[0018] Figure 2 This is a three-dimensional structural diagram of a biological trace detector proposed by the utility model, showing the right side protective cover in a disassembled state;

[0019] Figure 3 This is a top view of the cross-sectional structure of a biological trace detector proposed by the utility model;

[0020] Figure 4 This is an assembly structure diagram of a biological trace detector proposed by the utility model;

[0021] Figure 5 for Figure 3 A magnified structural diagram;

[0022] Figure 6 for Figure 3 The enlarged structure diagram at B;

[0023] Figure 7 for Figure 4 Enlarged structure diagram at C.

[0024] In the figure: 1. main body of the cylinder-type biological tester; 101. light source; 2. limiting ring; 201. slot; 3. protective cover; 4. magnet; 5. plug-in block; 6. cleaning part; 7. internal threaded sleeve; 8. rotating column; 9. retaining ring; 10. connecting strip; 11. gear ring; 12. motor; 13. gear. 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 of the embodiments.

[0026] See also Figures 1 to 7 The utility model provides a technical solution: a biological trace detector, comprising a cylindrical biological detector body 1, a light source 101 arranged at the end of the cylindrical biological detector body 1, a limit ring 2 arranged coaxially fixedly connected to the end of the cylindrical biological detector body 1, a protective cover 3 is detachably installed at the end of the cylindrical biological detector body 1, a rotatable cleaning member 6 is arranged inside the protective cover 3, and the cleaning member 6 is composed of a disc and a cleaning cloth arranged on the surface of the disc. The disc provides stable support, making the cleaning process smoother; the cleaning cloth plays a role of wiping and cleaning, maintaining the cleanliness and gloss of the lens surface of the light source 101; a rotating column 8 is rotatably inserted into the side wall of the protective cover 3, and the cleaning member 6 is detachably installed at the end of the rotating column 8.

[0027] One end of the rotating column 8 located outside the protective cover 3 is fixedly connected to a connecting strip 10, and the other end of the connecting strip 10 is fixedly connected to a motor 12. The output end of the motor 12 is fixedly connected to a gear 13. The outer side of the protective cover 3 is fixedly connected to a gear ring 11, and the gear 13 meshes with the gear ring 11.

[0028] The protective cover 3 is installed at the end of the cylindrical biological test instrument body 1. First, it protects the lens of the light source 101. Secondly, by starting the motor 12, the gear 13 is driven to rotate. The gear 13 makes a circular motion along the gear ring 11, thereby driving the connecting strip 10 to make a circular motion synchronously. The rotating column 8 rotates to drive the cleaning member 6 to rotate. The cleaning member 6 cleans the lens of the light source 101 and removes the stains on its surface. This ensures that the light emitted by the light source 101 can be emitted normally without being hindered when it is used next time.

[0029] In order to fix the protective cover 3 on the end of the cylindrical biological testing instrument body 1, two symmetrically distributed slots 201 are opened on the limiting ring 2, and the side wall of the protective cover 3 is fixedly connected with an insert block 5. When the protective cover 3 is assembled with the cylindrical biological testing instrument body 1, the insert block 5 is inserted into the slot 201, and the end of the protective cover 3 is in contact with the limiting ring 2.

[0030] In order to further lock the protective cover 3, a magnet 4 is fixedly connected to the inner wall of the slot 201. The plug block 5 is made of iron. When the protective cover 3 contacts the limiting ring 2, the magnet 4 also contacts the plug block 5. At this time, the magnet 4 adsorbs the plug block 5.

[0031] An end of the rotating column 8 located inside the protective cover 3 is provided with an external thread, a side wall of the cleaning member 6 is fixedly connected with an internal thread sleeve 7 , and the end of the rotating column 8 is threadedly inserted into the internal thread sleeve 7 .

[0032] A coaxially arranged retaining ring 9 is fixedly connected to the rotating column 8 . When the cleaning member 6 is installed, the internal threaded sleeve 7 contacts the retaining ring 9 .

[0033] The cleaning member 6 can be removed from the end of the rotating column 8, so that the cleaning member 6 is cleaned regularly to ensure the cleanliness of the cleaning member 6 and to clean the glass lens of the light source 101 normally. When removing, press the connecting strip 10 and then rotate the cleaning member 6 so that the internal threaded sleeve 7 is separated from the end of the rotating column 8. At this time, the cleaning member 6 is removed.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A biological trace detector, characterized in that: The invention comprises a cylindrical biological detector body (1), and a light source (101) arranged at the end of the cylindrical biological detector body (1); the end of the cylindrical biological detector body (1) is fixedly connected to a limit ring (2) arranged coaxially; the end of the cylindrical biological detector body (1) is detachably mounted with a protective cover (3); a rotatable cleaning member (6) is arranged inside the protective cover (3); a rotating column (8) is rotatably inserted into the side wall of the protective cover (3); and the cleaning member (6) is detachably mounted on the end of the rotating column (8).

2. A biological trace detector according to claim 1, characterized in that: One end of the rotating column (8) located outside the protective cover (3) is fixedly connected to a connecting bar (10), the other end of the connecting bar (10) is fixedly connected to a motor (12), the output end of the motor (12) is fixedly connected to a gear (13), the outer side of the protective cover (3) is fixedly connected to a gear ring (11), and the gear (13) meshes with the gear ring (11).

3. A biological trace detector according to claim 1, characterized in that: The limiting ring (2) is provided with two symmetrically distributed slots (201), and the side wall of the protective cover (3) is fixedly connected with an insert block (5). When the protective cover (3) is assembled with the cylindrical biological testing instrument body (1), the insert block (5) is inserted into the slot (201).

4. A biological trace detector according to claim 3, characterized in that: The inner wall of the slot (201) is fixedly connected with a magnet (4); the insert block (5) is made of iron, and the magnet (4) adsorbs the insert block (5).

5. A biological trace detector according to claim 1, characterized in that: An end of the rotating column (8) located inside the protective cover (3) is provided with an external thread, a side wall of the cleaning member (6) is fixedly connected with an internal thread sleeve (7), and the end of the rotating column (8) is threadedly inserted into the internal thread sleeve (7).

6. A biological trace detector according to claim 5, characterized in that: A coaxially arranged retaining ring (9) is fixedly connected to the rotating column (8), and the internal thread sleeve (7) is in contact with the retaining ring (9).

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