Grinding instrument for hair sample detection

Abstract

The utility model discloses a grinding instrument for hair sample detection. The grinding instrument comprises a grinding seat, a shell is arranged at the top end of the grinding seat, a mounting sleeve is arranged at the edge of the bottom end of the shell, a grinding column is arranged in the grinding seat, and a control display screen is arranged at the front end of the top of the shell. Connecting and stabilizing assemblies are arranged between the two ends of the two sides of the interior of a grinding base and the interior of a mounting sleeve, after hair is placed into the grinding base, connecting clamping rods are pressed into a cavity, a reset spring is compressed at the same time, then the top end of the exterior of the grinding base is sleeved with the mounting sleeve, and meanwhile fixing clamping holes are aligned with the connecting clamping rods one to one; a connecting clamping rod is pushed to penetrate through the interior of a fixing clamping hole through reset bounce of a reset spring, so that the purpose of stably connecting the mounting sleeve, the shell and the grinding seat can be achieved, the situation that the hair grinding effect of the instrument is affected by loosening of the mounting sleeve due to vibration of a motor is avoided, and the grinding instrument is convenient to disassemble for hair taking and placing operation.

Description

Technical Field

[0001] The utility model relates to the technical field of hair detection, in particular to a grinder for hair sample detection. Background Art

[0002] Based on the principle that drug metabolites will be fixed by hair proteins, after drugs enter the human body, they will enter the hair follicles through blood circulation. The drug precursors and their metabolites will be fixed by the keratin in the hair and stably retained in the hair. Therefore, hair testing is a conventional and effective way to identify drug abuse. When conducting hair identification, a grinder is required to grind the hair sample to be tested.

[0003] For example, a hair sample detection grinder disclosed in the utility model with authorization announcement number CN220912774U comprises a housing, a grinding seat is arranged at the bottom of the housing, a grinding groove is arranged at the top of the grinding seat, a grinding concave block is arranged inside the grinding groove, and a rotating rod is rotatably connected to the bottom of the housing through a bearing; the utility model has a grinding groove at the top of the grinding seat, and a grinding sleeve is inserted into the grinding groove. When the grinding sleeve is used, the grinding sleeve automatically rotates through the action of the rotating rod and the motor, so that the staff does not need to provide power manually, the staff's fatigue is reduced, and the efficiency is improved; the grinding concave block is installed inside the grinding groove, and the grinding convex block is installed at the bottom of the grinding sleeve. When the two are used in combination, the hair can be better ground, the grinding is more complete, and the grinding quality is improved. However, in the application of this technical solution, the driving part is connected to the grinding seat by a sleeve, and the sleeve is easily loosened due to the vibration of the motor during the grinding operation, thereby affecting the grinding effect. There is a technical problem that the driving part of the grinder cannot be stably connected to the grinding seat. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a hair sample testing grinder, which can solve the problem that the driving part of the grinder is connected to the grinding seat through a sleeve, but the sleeve is easily loosened due to the vibration of the motor during the grinding operation, thereby affecting the grinding effect, and there is a technical problem that the driving part of the grinder cannot be stably connected to the grinding seat.

[0005] To solve the above technical problems, the present utility model provides the following technical solutions: A grinder for hair sample detection, comprising a grinding base, a housing is provided at the top of the grinding base, an installation sleeve is provided at the edge of the bottom end of the housing, a grinding column is provided inside the grinding base, a control display screen is provided at the front end of the top of the housing, a charging socket is provided at the middle position of the top end of the housing, an internal power supply is provided on one side inside the housing, a heat dissipation port is provided on the other side inside the housing, a driving motor is provided at the middle position of the bottom end inside the housing, a driving shaft is provided at the middle position of the top end of the grinding column, a shaft sleeve is provided at the middle position of the bottom end of the housing, cavities are provided at the top ends on both sides inside the grinding base, a connecting clamping rod is inserted into one side of the cavity, a connecting piece is provided in the cavity on one side of the connecting clamping rod, a reset spring is provided on the other side inside the cavity, fixing clamping holes are provided on both sides inside the installation sleeve, and a sealing and protection assembly is provided on the outside of the driving shaft and at the top of the grinding base.

[0006] As a preferred technical solution of the present utility model, the cavities are symmetrically arranged inside the grinding base, and one side of the reset spring is fixedly connected to one side of the connecting piece.

[0007] As a preferred technical solution of the present utility model, the fixing clamping holes are symmetrically arranged inside the installation sleeve, and one side of the connecting clamping rod penetrates through the inside of the fixing clamping hole.

[0008] As a preferred technical solution of the present utility model, the installation sleeve is sleeved on the top of the outside of the grinding base, and the top end of the driving shaft penetrates through the shaft sleeve and is fixedly connected to the output end of the driving motor.

[0009] As a preferred technical solution of the present utility model, the sealing and protection assembly includes a fixing sleeve, the fixing sleeve is arranged on the outside of the driving shaft, a limiting plate is arranged on the outside of the fixing sleeve, a sealing clamping strip is arranged at the edge of the bottom end of the limiting plate, a sealing groove is arranged at the top of the grinding base, and a wear-resistant coating is arranged on the outside of the sealing clamping strip.

[0010] As a preferred technical solution of the present utility model, the sealing clamping strip and the sealing groove are annular, and the sealing clamping strip fits inside the sealing groove.

[0011] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0012] 1. By providing a connection and stabilization component between the two ends on both sides inside the grinding base and the inside of the mounting sleeve, after placing the hair into the grinding base, the connecting rod is pressed into the cavity while compressing the return spring. Then, the mounting sleeve is sleeved on the top of the grinding base, and at the same time, the fixing holes are aligned with the connecting rod one by one. Through the return and rebound force of the return spring, the connecting rod is pushed through the inside of the fixing hole, so as to achieve the purpose of firmly connecting the mounting sleeve and the housing with the grinding base, avoiding the loosening of the mounting sleeve caused by the vibration of the motor and affecting the hair grinding effect of the instrument, and facilitating the disassembly of the grinding instrument for the operation of placing and taking out the hair;

[0013] 2. By providing a sealing and protection component on the outside of the drive shaft and the top of the grinding base, when connecting the housing with the grinding base, the sealing strip is snapped into the sealing groove. And during the hair grinding process, the limiting plate and the sealing strip rotate accordingly. The hair is limited in the grinding base by the limiting plate, the matching sealing strip and the sealing groove, and the contact surface between the sealing strip and the sealing groove is made more wear-resistant through the wear-resistant coating, thus effectively preventing the hair from running out of the grinding base and winding around the rotating shaft during the grinding process and affecting the normal operation of the grinding instrument, while limiting the hair in the grinding base to ensure the hair grinding effect of the grinding instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 is a front sectional structural schematic diagram of the present utility model;

[0016] Figure 3 is of the present utility model Figure 2 magnified structural schematic diagram at A in;

[0017] Figure 4 is a partial bottom view sectional structural schematic diagram of the limiting plate of the present utility model.

[0018] Wherein: 1. Grinding base; 2. Mounting sleeve; 3. Housing; 4. Control display screen; 5. Charging socket; 6. Heat dissipation port; 7. Connecting rod; 8. Grinding column; 9. Built-in power supply; 10. Driving motor; 11. Bush; 12. Limiting plate; 13. Cavity; 14. Sealing strip; 15. Sealing groove; 16. Return spring; 17. Connecting piece; 18. Fixing hole; 19. Drive shaft; 20. Fixed sleeve; 21. Wear-resistant coating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model. The experimental methods in the following embodiments are all conventional methods unless otherwise specified. The materials, reagents, etc. used in the following embodiments can all be obtained from commercial channels unless otherwise specified.

[0020] Embodiment

[0021] Please refer to Figures 1-4 As shown, the present utility model provides a grinder for hair sample detection, which includes a grinding base 1. A housing 3 is arranged at the top end of the grinding base 1. An installation sleeve 2 is arranged at the edge of the bottom end of the housing 3. A grinding column 8 is arranged inside the grinding base 1. A control display screen 4 is arranged at the front end of the top of the housing 3. The tester controls the grinder to perform hair grinding work through the control display screen 4. A charging socket 5 is arranged at the middle position of the top end of the housing 3. An internal power supply 9 is arranged on one side inside the housing 3. A heat dissipation port 6 is arranged on the other side inside the housing 3. A driving motor 10 is arranged at the middle position of the bottom end inside the housing 3. A driving shaft 19 is arranged at the middle position of the top end of the grinding column 8. A shaft sleeve 11 is arranged at the middle position of the bottom end of the housing 3. The top end of the driving shaft 19 passes through the shaft sleeve 11 and is fixedly connected to the output end of the driving motor 10. The installation sleeve 2 is sleeved on the top end outside the grinding base 1. The hair to be ground is placed inside the grinding base 1, and the housing 3 is installed on the top of the grinding base 1 through the installation sleeve 2. At the same time, the grinding column 8 is inserted into the inside of the grinding base 1. Then, the driving motor 10 is started to drive the driving shaft 19 to drive the grinding column 8 to rotate and grind the hair;

[0022] As a further implementation manner of this embodiment, as Figure 1 , Figure 2 and Figure 3As shown in the figure, cavities 13 are provided at the tops of both sides inside the grinding base 1, and the cavities 13 are symmetrically arranged inside the grinding base 1. A connecting clamping rod 7 is inserted into one side inside the cavity 13. A connecting piece 17 is arranged in the cavity 13 on one side of the connecting clamping rod 7. A reset spring 16 is arranged on the other side inside the cavity 13. One side of the reset spring 16 is fixedly connected to one side of the connecting piece 17. Before installing the housing 3 on the grinding base 1, first press the connecting clamping rod 7 into the cavity 13 while compressing the reset spring 16. Then, sleeve the mounting sleeve 2 on the top outside the grinding base 1. Fixed clamping holes 18 are provided on both sides inside the mounting sleeve 2, and the fixed clamping holes 18 are symmetrically arranged inside the mounting sleeve 2. One side of the connecting clamping rod 7 penetrates through the inside of the fixed clamping hole 18. After sleeving the mounting sleeve 2 on the grinding base 1, align the fixed clamping holes 18 with the connecting clamping rods 7 one by one. By the restoring and rebounding force of the reset spring 16, the connecting clamping rod 7 is pushed to penetrate through the inside of the fixed clamping hole 18, so as to achieve the purpose of firmly connecting the mounting sleeve 2 and the housing 3 with the grinding base 1, and avoid the loosening of the mounting sleeve 2 caused by the vibration of the motor, which affects the hair grinding effect of the instrument;

[0023] After placing the hair into the grinding base 1, press the connecting clamping rod 7 into the cavity 13 while compressing the reset spring 16. Then, sleeve the mounting sleeve 2 on the top outside the grinding base 1, and at the same time align the fixed clamping holes 18 with the connecting clamping rods 7 one by one. By the restoring and rebounding force of the reset spring 16, the connecting clamping rod 7 is pushed to penetrate through the inside of the fixed clamping hole 18, so as to firmly connect the mounting sleeve 2 and the housing 3 with the grinding base 1, and avoid the loosening of the mounting sleeve 2 and the driving part caused by the vibration of the motor;

[0024] As a further implementation manner of this embodiment, as Figures 1-4 shown, a sealing and protecting assembly is provided between the outside of the driving shaft 19 and the top of the grinding base 1. The sealing and protecting assembly includes a fixing sleeve 20. The fixing sleeve 20 is arranged on the outside of the driving shaft 19. A limiting plate 12 is arranged on the outside of the fixing sleeve 20. An annular sealing strip 14 is arranged at the edge of the bottom end of the limiting plate 12. An annular sealing groove 15 is arranged at the top of the grinding base 1, and the sealing strip 14 fits into the inside of the sealing groove 15. When the hair grinding process is carried out, the limiting plate 12 and the sealing strip 14 rotate accordingly. The hair is limited inside the grinding base 1 by the limiting plate 12, the matching sealing strip 14 and the sealing groove 15. A wear-resistant coating 21 is arranged on the outside of the sealing strip 14. The wear-resistant coating 21 makes the contact surface between the sealing strip 14 and the sealing groove 15 more wear-resistant, so as to effectively prevent the hair from running out of the grinding base 1 and winding around the rotating shaft during the grinding process, which affects the normal operation of the grinding instrument. At the same time, the hair is limited inside the grinding base 1 to ensure the hair grinding effect of the grinding instrument;

[0025] While connecting the housing 3 to the grinding base 1, the sealing strip 14 is snapped into the interior of the sealing groove 15, and during the hair grinding process, the limiting plate 12 and the sealing strip 14 rotate accordingly. The hair is confined within the grinding base 1 by the limiting plate 12, the matching sealing strip 14, and the sealing groove 15, and the wear-resistant coating 21 makes the contact surface between the sealing strip 14 and the sealing groove 15 more wear-resistant.

[0026] Specific working principle:

[0027] When using the grinding instrument, first place the hair to be ground in the grinding base 1. Then, press the connecting rod 7 into the interior of the cavity 13 while compressing the return spring 16. Subsequently, slip the mounting sleeve 2 over the top of the outside of the grinding base 1, and align the fixing holes 18 with the connecting rod 7 one by one. The return spring 16 rebounds to push the connecting rod 7 through the interior of the fixing holes 18, thus firmly connecting the mounting sleeve 2 and the housing 3 to the grinding base 1. At the same time, insert the grinding column 8 into the interior of the grinding base 1. While connecting the housing 3 to the grinding base 1, snap the sealing strip 14 into the interior of the sealing groove 15. After assembling the grinding instrument, the tester sets the grinding program through the control display screen 4 and starts the drive motor 10 to drive the drive shaft 19 to drive the grinding column 8 to rotate and grind the hair. During the hair grinding process, the limiting plate 12 and the sealing strip 14 rotate accordingly. The hair is confined within the grinding base 1 by the limiting plate 12, the matching sealing strip 14, and the sealing groove 15, and the wear-resistant coating 21 makes the contact surface between the sealing strip 14 and the sealing groove 15 more wear-resistant, thereby performing a stable and continuous hair grinding operation.

[0028] The above shows and describes the basic principle, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions in the specification are only preferred examples of the present invention and do not limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A hair sample testing grinder, comprising a grinding stand (1), characterized in that: The top of the grinding seat (1) is provided with a shell (3), the edge of the bottom of the shell (3) is provided with a mounting sleeve (2), the interior of the grinding seat (1) is provided with a grinding column (8), the front end of the top of the shell (3) is provided with a control display screen (4), the middle position of the top of the shell (3) is provided with a charging socket (5), one side of the inside of the shell (3) is provided with a built-in power supply (9), the other side of the inside of the shell (3) is provided with a heat dissipation port (6), the middle position of the bottom of the inside of the shell (3) is provided with a driving motor (10), the middle position of the top of the grinding column (8) is provided with a charging socket (5), the inner side of the shell (3) is provided with a built-in power supply (9), the inner side of the shell (3) is provided with a heat dissipation port (6), the inner side of the shell (3) is provided with a driving motor (10), the inner side of the grinding column (8) is provided with a charging socket (5), the inner side of the shell (3 ... A drive shaft (19) is arranged at an intermediate position of the housing (3), a shaft sleeve (11) is arranged at a middle position of the bottom end of the housing (3), cavities (13) are arranged at the top ends of both sides of the interior of the grinding seat (1), a connecting rod (7) is inserted into one side of the interior of the cavity (13), a connecting sheet (17) is arranged in the cavity (13) on one side of the connecting rod (7), a reset spring (16) is arranged on the other side of the interior of the cavity (13), fixing holes (18) are arranged on both sides of the interior of the mounting sleeve (2), and sealing protection components are arranged on the outside of the drive shaft (19) and the top end of the grinding seat (1).

2. A hair sample testing grinder according to claim 1, characterized in that: The cavity (13) is symmetrically arranged inside the grinding seat (1), and one side of the return spring (16) is fixedly connected to one side of the connecting piece (17).

3. The hair sample testing grinder according to claim 1, characterized in that: The fixing clamp holes (18) are symmetrically arranged inside the installation sleeve (2), and one side of the connecting clamp rod (7) passes through the inside of the fixing clamp hole (18).

4. The hair sample testing grinder according to claim 1, characterized in that: The mounting sleeve (2) is sleeved on the top end of the outside of the grinding seat (1), and the top end of the driving shaft (19) passes through the shaft sleeve (11) and is fixedly connected to the output end of the driving motor (10).

5. The hair sample testing grinder according to claim 1, characterized in that: The sealing protection assembly comprises a fixing sleeve (20), wherein the fixing sleeve (20) is arranged on the outside of the driving shaft (19), a limiting plate (12) is arranged on the outside of the fixing sleeve (20), a sealing clip (14) is arranged at the edge of the bottom end of the limiting plate (12), a sealing groove (15) is arranged at the top end of the grinding seat (1), and a wear-resistant coating (21) is arranged on the outside of the sealing clip (14).

6. A hair sample testing grinder according to claim 5, characterized in that: The sealing strip (14) and the sealing groove (15) are annular in shape, and the sealing strip (14) fits inside the sealing groove (15).

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