Grinding system of hair drug detector

Abstract

The utility model discloses a grinding system of a hair drug detector. The grinding system comprises a rack, a driving motor arranged on the rack, a crank assembly arranged on the rack and a grinding head assembly connected to the crank assembly, the driving motor drives the crank assembly to move, the crank assembly drives the grinding head assembly to reciprocate, and hair to be ground is placed in the grinding head assembly. According to the utility model, the crank and the grinding head are utilized, so that the grinding head reciprocates, the grinding effect is good, grinding is sufficient, time is short, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to drug detection equipment, in particular to a hair drug detector grinding system. Background Art

[0002] Using hair as a sample to identify whether human tissue contains drugs is a widely used detection method in practice. In the process of using hair for drug detection, human hair needs to be ground and then tested. Hair identification of drug use is a method that has emerged in recent years in the law enforcement departments with a particularly high practicality and universality.

[0003] There are many ways to extract hair components, among which grinding is the most efficient and accurate. By grinding the hair into powder, the surface area of ​​the hair can be increased and its keratin can be fully destroyed, allowing the solvent to penetrate into the medulla and cortex layers inside the hair to fully dissolve and extract, so that identification can be completed quickly.

[0004] Traditionally, most grinding methods are done manually, which has poor safety, long grinding time and low efficiency.

[0005] Currently, there is also a method of grinding by rotating the grinding disc, but this method results in insufficient grinding, requires a long grinding time, and is not efficient. Utility Model Content

[0006] In order to solve the defects of the above-mentioned prior art, the utility model provides a hair drug detector grinding system. The utility model utilizes a crank and a grinding head to make the grinding head perform reciprocating motion, thereby achieving good grinding effect, sufficient grinding, short time and high efficiency.

[0007] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a hair drug detector grinding system, comprising a frame, a driving motor arranged on the frame, a crank assembly arranged on the frame, and a grinding head assembly connected to the crank assembly;

[0008] The driving motor drives the crank assembly to move, and the crank assembly drives the grinding head assembly to reciprocate, and the hair to be ground is placed in the grinding head assembly.

[0009] Furthermore, the crank assembly includes a crank ring and a crank rod, the crank ring is provided with a rotating shaft connected to the driving shaft of the driving motor, one end of the crank rod is fixedly connected to the crank ring, and the other end is provided with a crankshaft; the crankshaft is connected to a rocker, one end of the rocker is connected to the crankshaft, a support shaft is provided in the middle, and the other end is fixedly connected to the grinding head assembly.

[0010] Furthermore, a motor bracket is arranged between the driving motor and the frame, the frame is provided with a flange, the driving shaft of the driving motor passes through the motor bracket, a rotating disk is arranged behind the frame, a rotating shaft is fixed to the rotating disk, the rotating shaft and the rotating disk are eccentric structures, the crank ring is connected to the rotating shaft, so that the driving motor drives the crank ring to perform eccentric motion through the rotating shaft.

[0011] Furthermore, the support shaft is arranged on the frame through a support block.

[0012] Furthermore, the grinding head assembly includes a lower platform fixed to the end of the rocker and an upper platform fixed to the lower platform, the lower platform is installed with a pad, a grinding base is arranged on the pad, a partition disc is arranged inside the grinding base, and the grinding base is provided with a grinding head.

[0013] Furthermore, the lower platform is installed with a spring, and the lower surface of the pad is provided with a support foot, and the support foot extends into the spring and is fixed by bolts.

[0014] Furthermore, the lower platform is provided with pillars, and the upper platform is fixed to the pillars.

[0015] Furthermore, a spherical shock-absorbing foot pad is provided at the bottom of the frame.

[0016] Furthermore, a rotating baffle is provided at the tail end of the driving shaft of the driving motor, and the rotating baffle is matched with a photoelectric switch.

[0017] In summary, the utility model has achieved the following technical effects:

[0018] The utility model has a small size and complete functions, and can be used as an instrument alone, or can be stacked inside other detection equipment as a functional module.

[0019] The utility model is provided with a spherical shock-absorbing foot pad, which has excellent shock-proof effect and can reduce noise at the same time.

[0020] The utility model has a built-in program controller, which can set parameters such as grinding time and vibration frequency

[0021] The utility model has the functions of grinding, shaking and resetting.

[0022] The grinding process of the utility model is in a fully closed state, thus avoiding cross contamination between samples and external contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a grinding system of a hair drug detector provided by an embodiment of the utility model;

[0024] Figure 2 Yes Yes Figure 1 Schematic diagram of local decomposition;

[0025] Figure 3 is a schematic diagram of a grinding head assembly;

[0026] Figure 4 yes Figure 3 Schematic diagram of local decomposition. DETAILED DESCRIPTION

[0027] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Example:

[0034] like Figure 1 As shown, a hair drug detector grinding system includes a frame 1, a driving motor 2 arranged on the frame 1, a crank assembly arranged on the frame 1, and a grinding head assembly connected to the crank assembly; the driving motor 2 drives the crank assembly to move, and the crank assembly drives the grinding head assembly to reciprocate, and the hair to be ground is placed in the grinding head assembly.

[0035] The utility model utilizes a crank assembly and a motor to drive the grinding head to do reciprocating motion, thereby improving the grinding efficiency and reducing the grinding time.

[0036] like Figure 2 Shown is Figure 1 The partial exploded schematic diagram of the crank assembly includes a crank ring 4 and a crank rod 5. The crank ring 4 is provided with a rotating shaft 23 connected to the driving shaft of the driving motor 2. One end of the crank rod 5 is fixedly connected to the crank ring 4, and the other end is provided with a crankshaft 7; the crankshaft 7 is connected to a rocker 6, one end of the rocker 6 is connected to the crankshaft 7, a support shaft 8 is provided in the middle, and the other end is fixedly connected to the grinding head assembly. The support shaft 8 is used to ensure the stability of the rocker 6 and realize the reciprocating motion of the outer end of the rocker, i.e., the grinding head. The rocker 6 adopts the form of a lever to allow the grinding head to reciprocate, thereby improving efficiency.

[0037] The crank ring 4 and the crank rod 5 perform eccentric motion, thereby driving the rocker 6 to perform reciprocating motion, thereby driving the grinding head assembly to perform reciprocating motion, thereby improving the grinding efficiency.

[0038] A motor bracket 21 is arranged between the driving motor 2 and the frame 1, and a flange 3 is arranged on the frame 1. A driving shaft of the driving motor 2 passes through the motor bracket 21 and a rotating disk 24 is arranged after the frame 1. A rotating shaft 23 is fixed to the rotating disk 24. The rotating shaft 23 and the rotating disk 24 are eccentric structures. The crank ring 4 is connected to the rotating shaft 23, so that the driving motor 2 drives the crank ring 4 to perform eccentric motion through the rotating shaft 23.

[0039] The rotating disk 24 is a circular disk structure, connected to the motor shaft, and the rotating shaft 23 is fixed at a non-center position of the rotating disk 24 to achieve eccentric motion.

[0040] The support shaft 8 is arranged on the frame 1 through the support block 9, so that the rocker 6 reciprocates around the support shaft 8 as the center.

[0041] like Figure 3 The figure shows a schematic diagram of the grinding head assembly. Figure 4 Shown is Figure 3 The partially exploded schematic diagram shows that the grinding head assembly includes a lower platform 10 fixed to the end of the rocker 6, and an upper platform 11 fixed to the lower platform 10. The lower platform 10 is equipped with a spacer plate 15, and a grinding base 17 is arranged on the spacer plate 15. A partition disc 18 is arranged in the grinding base 17. The grinding base 17 is provided with a grinding head 19, and the grinding head 19 is provided with a slot for clamping the grinding base 17.

[0042] The lower platform 10 is installed with a spring 13 , and the lower surface of the spacer 15 is provided with a support foot 16 . The support foot 16 extends into the spring 13 and is fixed by a bolt 14 to tighten the grinding base 17 .

[0043] The lower platform 10 is provided with pillars 12 , and the upper platform 11 is fixed to the pillars 12 .

[0044] The bottom of the frame 1 is provided with a spherical shock-absorbing foot pad 22, which has excellent shock-proof effect and can reduce noise.

[0045] A rotating baffle 20 is disposed at the rear end of the driving shaft of the driving motor 2 , and the rotating baffle 20 is matched with a photoelectric switch 21 for feeding back a position signal.

[0046] Working principle:

[0047] 1. The driving motor 2 drives the rotating disk 24 to operate, thereby driving the rotating shaft 23 to make an eccentric motion, and driving the rocker 6 to make a reciprocating motion through the crank ring 4 and the crank rod 5, and the grinding head assembly also makes a reciprocating motion.

[0048] 2. The rotating baffle 20 is connected to the tail end of the motor shaft and rotates synchronously with the motor. The rotating baffle 20 passes through the photoelectric switch 21, and the feedback signal determines the position relationship.

[0049] 3. Add zirconium beads to the grinding base 17 in advance, and then add a certain amount of hair, reagents, etc.; the grinding base 17 is tightened by the base spring 13 and stuck in the slot of the grinding head 19. A filter is provided inside the grinding base 17, and the mouth is sealed with aluminum foil. After grinding and shaking, the liquid collection needle pierces the aluminum foil to collect the liquid.

[0050] 4. The motor rotates at high speed when grinding and at low speed when shaking.

[0051] 5. Grinding time and shaking time can be set, and the end position of the grinding box is fixed, which is convenient for fixed-point liquid collection.

[0052] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A hair drug detector grinding system, characterized in that: It comprises a frame (1), a driving motor (2) arranged on the frame (1), a crank assembly arranged on the frame (1), and a grinding head assembly connected to the crank assembly; The driving motor (2) drives the crank assembly to move, and the crank assembly drives the grinding head assembly to reciprocate, and the hair to be ground is placed inside the grinding head assembly.

2. A hair drug detector grinding system according to claim 1, characterized in that: The crank assembly comprises a crank ring (4) and a crank rod (5); the crank ring (4) is provided with a rotating shaft (23) connected to the driving shaft of the driving motor (2); one end of the crank rod (5) is fixedly connected to the crank ring (4), and the other end is provided with a crankshaft (7); the crankshaft (7) is connected to a rocker (6); one end of the rocker (6) is connected to the crankshaft (7), a support shaft (8) is provided in the middle, and the other end is fixedly connected to the grinding head assembly.

3. A hair drug detector grinding system according to claim 2, characterized in that: A motor bracket (21) is arranged between the driving motor (2) and the frame (1), and the frame (1) is provided with a flange (3). The driving shaft of the driving motor (2) passes through the motor bracket (21). A rotating disk (24) is arranged behind the frame (1), and a rotating shaft (23) is fixed to the rotating disk (24). The rotating shaft (23) and the rotating disk (24) are eccentric structures. The crank ring (4) is connected to the rotating shaft (23), so that the driving motor (2) drives the crank ring (4) to perform eccentric movement through the rotating shaft (23).

4. The hair drug detector grinding system according to claim 2, characterized in that: The support shaft (8) is arranged on the frame (1) via a support block (9).

5. The hair drug detector grinding system according to claim 2, characterized in that: The grinding head assembly comprises a lower platform (10) fixed to the end of the rocker (6), and an upper platform (11) fixed to the lower platform (10); the lower platform (10) is provided with a pad (15); a grinding base (17) is provided on the pad (15); a partition disc (18) is provided inside the grinding base (17); and the grinding base (17) is provided with a grinding head (19).

6. A hair drug detector grinding system according to claim 5, characterized in that: The lower platform (10) is installed with a spring (13), and the lower surface of the pad (15) is provided with a support foot (16), and the support foot (16) extends into the spring (13) and is fixed by a bolt (14).

7. A hair drug detector grinding system according to claim 6, characterized in that: The lower platform (10) is provided with a support column (12), and the upper platform (11) is fixed to the support column (12).

8. The hair drug detector grinding system according to claim 1, characterized in that: A spherical shock-absorbing foot pad (22) is provided at the bottom of the frame (1).

9. The hair drug detector grinding system according to claim 1, characterized in that: A rotating baffle (20) is provided at the rear end of the driving shaft of the driving motor (2), and the rotating baffle (20) is matched with a photoelectric switch (25).

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