Handheld miniature grinder
Through the design of the handheld micro grinder, the adjustable speed drive motor and a knife cover with a specific structure, the problems of small particles and soft samples in the grinding process are solved, achieving uniform and efficient grinding effect.
Patent Information
- Application Number
- CN202422415803.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-08
AI Technical Summary
Existing grinders are prone to escaping and sputtering during grinding small particles, micro insects or soft samples, affecting the detection work.
A handheld mini grinder is designed, including an adjustable speed drive motor, a removable grinding mechanism, a knife cover with side holes and conical bevels, combined with a rubber ring and a float structure to prevent samples from flying and sputtering and ensure uniformity of grinding.
Effectively prevent samples from flying and sputtering, ensure uniformity and safety of the grinding process, and adapt to the grinding needs of different samples.
Smart Images
Figure CN223288173U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of grinders, in particular to a handheld micro grinder. Background Art
[0002] During the testing process of animals, plants, and food, raw materials need to be ground. The current grinding work mainly uses grinders to grind samples. However, the grinding work of small particles, tiny insects, or soft samples requires even more precision. The samples are prone to flying under the action of the grinding blades, resulting in the loss of sample fragments and affecting subsequent testing work. Utility Model Content
[0003] The purpose of the present invention is to provide a handheld micro grinder to solve the problems raised in the above background technology.
[0004] The technical solution of the utility model is: a handheld micro grinder, comprising a grinder main body, the rotating end of the grinder main body is connected to a rotating shaft, the bottom end of the rotating shaft is connected to a detachable grinding mechanism, a knife cover main body is sleeved on the rotating shaft, a stopping ring is fixed on the rotating shaft for stopping the bottom end of the knife cover main body, the knife cover main body comprises a knife cover sleeved on the rotating shaft, and a side hole is opened on the side wall of the knife cover.
[0005] The effects achieved by the above components are: the grinder body can drive the grinding mechanism inserted into the centrifuge tube to rotate, and the grinding mechanism can grind and crush small particles, tiny insects or soft samples in the centrifuge tube during high-speed rotation. The corresponding grinding mechanism can be replaced according to different samples. In addition, the knife cover can block the top of the grinding mechanism to prevent the sample from flying or sputtering due to high-speed rotation, and the side hole can allow the ground sample to overflow from the knife cover to the inner wall of the centrifuge tube, making the grinding more uniform.
[0006] Preferably, the side wall of the blade cover is provided with a conical inclined surface.
[0007] The effect achieved by the above components is that the conical inclined surface can facilitate the downward movement of the sample from the gap between the knife cover and the centrifuge tube, thereby preventing the sample from escaping upward.
[0008] Preferably, a rubber ring is fixed to the outer circumferential wall of the top end of the knife cover.
[0009] The effect achieved by the above components is that the top of the gap between the knife cover and the centrifuge tube can be sealed by the rubber ring, further preventing the sample from splashing.
[0010] Preferably, a plurality of floating balls distributed in an annular manner are fixed to the inner wall of the top end of the knife cover.
[0011] The effect achieved by the above components is that the float ball can ensure that the blade cover is always on the top of the liquid surface during liquid addition and grinding, thereby preventing the solution from splashing.
[0012] Preferably, the grinding mechanism includes a rotary head, the top of the rotary head is provided with an assembly hole that is plugged into the bottom end of the rotating shaft, the bottom of the rotary head is fixed to the rotating shaft by bolts, and a plurality of annularly distributed blades are fixed to the circumferential outer wall of the rotary head.
[0013] The effect achieved by the above components is that the rotary head and the blade can be easily fixed to the bottom end of the rotating shaft through the assembly holes and bolts, and can be replaced according to the grinding requirements.
[0014] Preferably, the grinder body includes a shell, a speed-adjustable drive motor is installed in the shell, and an output shaft of the drive motor is fixed with an output shaft connected to the rotating shaft.
[0015] The effect achieved by the above components is that the speed-adjustable drive motor can adjust the grinding force.
[0016] The present invention provides a handheld micro grinder through improvement, which has the following improvements and advantages compared with the prior art:
[0017] First, the present invention can drive the grinding mechanism inserted into the centrifuge tube to rotate through the grinder body, and the grinding mechanism can grind and crush small particles, tiny insects or soft samples in the centrifuge tube during high-speed rotation. The corresponding grinding mechanism can be replaced according to different samples. In addition, the knife cover can block the upper part of the grinding mechanism to prevent the sample from flying or splashing due to high-speed rotation, and the side hole can allow the ground sample to overflow from the knife cover to the inner wall of the centrifuge tube, making the grinding more uniform.
[0018] Secondly, the utility model can facilitate the downward movement of the sample from the gap between the knife cover and the centrifuge tube through the conical inclined surface, thereby preventing the sample from escaping upward. The rubber ring can seal the top of the gap between the knife cover and the centrifuge tube. The float ball can ensure that the knife cover is always at the top of the liquid surface during liquid addition and grinding, thereby preventing the solution from splashing. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0020] Figure 1 It is a three-dimensional structural diagram of the utility model;
[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the knife cover assembly in the utility model;
[0022] Figure 3This is a schematic diagram of the cross-sectional three-dimensional structure of the knife cover in the utility model;
[0023] Figure 4 It is a schematic diagram of the cross-sectional structure of the knife cover in the utility model.
[0024] Description of reference numerals:
[0025] 1. Grinder body; 2. Rotating shaft; 3. Blade cover body; 31. Blade cover; 32. Side hole; 33. Conical slope; 4. Stop ring; 5. Grinding mechanism; 51. Rotating head; 52. Blade; 53. Assembly hole; 6. Float; 7. Rubber ring. DETAILED DESCRIPTION
[0026] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] The present invention provides a handheld micro grinder through improvement. The technical solution of the present invention is:
[0028] In the embodiment of the present utility model, as Figures 1-4As shown, the handheld micro grinder includes a grinder body 1, the grinder body 1 includes a shell, an adjustable speed drive motor is installed in the shell, the output shaft of the drive motor is fixed with an output shaft connected to the rotating shaft 2, the adjustable speed drive motor can adjust the grinding force, the rotating end of the grinder body 1 is connected to the rotating shaft 2, the bottom end of the rotating shaft 2 is connected to a detachable grinding mechanism 5, the grinding mechanism 5 includes a rotary head 51, the top of the rotary head 51 is provided with an assembly hole 53 that is plugged into the bottom end of the rotating shaft 2, and the rotary head 51 is connected to the rotating shaft 2. The bottom is fixed to the rotating shaft 2 by bolts, and a plurality of annularly distributed blades 52 are fixed on the outer wall of the rotating head 51. The rotating head 51 and the blades 52 can be easily fixed to the bottom end of the rotating shaft 2 through the assembly holes 53 and bolts. They can be replaced according to the grinding needs. A knife cover body 3 is sleeved on the rotating shaft 2, and a stop ring 4 for stopping the bottom end of the knife cover body 3 is fixed on the rotating shaft 2. The knife cover body 3 includes a knife cover 31 sleeved on the rotating shaft 2, and a side hole 32 is opened on the side wall of the knife cover 31. The grinder body 1 can be The blade cover 31 is provided with a conical inclined surface 33, which facilitates the downward movement of the sample from the gap between the blade cover 31 and the centrifuge tube to prevent the sample from flying upward. A rubber ring 7 is fixed to the outer wall of the top circumference of the blade cover 31, which can block the top of the gap between the blade cover 31 and the centrifuge tube to further prevent the sample from splashing. A plurality of annularly distributed floats 6 are fixed to the inner wall of the top of the blade cover 31, which can ensure that the blade cover 31 is always at the top of the liquid surface during liquid addition and grinding to prevent the solution from splashing.
[0029] The working principle of the handheld micro grinder provided by the utility model is as follows: the grinder body 1 can drive the grinding mechanism 5 inserted into the centrifuge tube to rotate, and the grinding mechanism 5 can grind and crush small particles, tiny insects or soft samples in the centrifuge tube during high-speed rotation, wherein the corresponding grinding mechanism 5 can be replaced according to different samples, and the knife cover 31 can block the upper part of the grinding mechanism 5 to prevent the sample from flying or splashing due to high-speed rotation, and the side hole 32 can make the ground sample overflow from the knife cover 31 to the inner wall of the centrifuge tube, making the grinding more uniform, and the conical inclined surface 33 can facilitate the sample to move downward from the gap between the knife cover 31 and the centrifuge tube to prevent the sample from flying upward, and the rubber ring 7 can block the top of the gap between the knife cover 31 and the centrifuge tube to further prevent the sample from splashing, and the float 6 can make the knife cover 31 always at the top of the liquid surface during liquid addition grinding to prevent the solution from splashing.
[0030] 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 handheld micro grinder, comprising a grinder body (1), wherein the rotating end of the grinder body (1) is connected to a rotating shaft (2), and the bottom end of the rotating shaft (2) is connected to a detachable grinding mechanism (5), characterized in that: A knife cover body (3) is sleeved on the rotating shaft (2), a stop ring (4) is fixed on the rotating shaft (2) for stopping the bottom end of the knife cover body (3), the knife cover body (3) comprises a knife cover (31) sleeved on the rotating shaft (2), and a side hole (32) is opened on the side wall of the knife cover (31).
2. The handheld micro-grinder according to claim 1, characterized in that: The side wall of the knife cover (31) is provided with a conical inclined surface (33).
3. The handheld micro-grinder according to claim 1, wherein: A rubber ring (7) is fixed to the outer circumferential wall of the top end of the knife cover (31).
4. The handheld micro-grinder according to claim 1, wherein: A plurality of floating balls (6) distributed in an annular manner are fixed on the inner wall of the top end of the knife cover (31).
5. The handheld micro-grinder according to claim 1, wherein: The grinding mechanism (5) comprises a rotary head (51), the top of the rotary head (51) is provided with an assembly hole (53) for plugging and matching with the bottom end of the rotating shaft (2), the bottom of the rotary head (51) and the rotating shaft (2) are fixed by bolts, and a plurality of annularly distributed blades (52) are fixed to the outer circumferential wall of the rotary head (51).
6. The handheld micro-grinder according to claim 1, wherein: The grinder body (1) comprises a shell, in which a speed-adjustable drive motor is installed, and an output shaft of the drive motor is fixed with an output shaft connected to the rotating shaft (2).