A small-scale sample grinding device
Patent Information
- Application Number
- CN202521959413.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-12
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-09-12
AI Technical Summary
[0003]在生物、食品等领域的研究中,对于辣椒等植物样品的分析往往需要先将其果实冷冻,再将冻块研磨成精细的粉末状,然而,小型磨样设备一般不适用于样品(果实等含水量高的组织)冷冻后的研磨,在驱动研磨部件转动时容易出现动力损耗大、转动不稳定的情况,且由于冷冻样品的摩擦阻力小,研磨时易滑动造成受力不均匀,这就使得对植物果实冻块等样品的研磨效率低下,且在制样较少时无法保证样品与研磨部件充分接触,常常导致样品研磨不彻底,使得制得的样品粉末粗细不均,影响后续对样品成分分析等实验的准确性,为此,需要提供一种小型磨样设备,采用小型电力驱动研磨方式,配合推料结构,确保研磨均匀及充分,且易于对样本及样本原料进行取放
[0014] 1. This utility model improves the driving source by using a servo motor, a drive bevel gear and a force-receiving bevel gear in combination. With the combined use of the grinding components and the grinding tank, plant jelly blocks are ground. At the same time, with the combined use of the collection box and the discharge box, the powdered plant jelly blocks are collected and stored, thus achieving the purpose of easy grinding and sample preparation and thorough grinding.
Smart Images

Figure CN224641163U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of plant sample preparation technology, and in particular relates to a small-scale sample grinding device. Background Technology
[0002] In fields such as agricultural research and food processing, plant quick-freezing sample preparation refers to the process of rapidly freezing plant tissues (fruits, stems, etc.) in liquid nitrogen after they are removed from the body to prepare samples suitable for subsequent analysis and testing.
[0003] In biological and food research, the analysis of plant samples such as chili peppers often requires freezing the fruit first, and then grinding the frozen blocks into a fine powder. However, small grinding equipment is generally not suitable for grinding frozen samples (tissues with high water content such as fruits). When driving the grinding components to rotate, there is a high risk of power loss and unstable rotation. Furthermore, due to the low frictional resistance of frozen samples, they are prone to slippage during grinding, resulting in uneven force. This leads to low grinding efficiency for samples such as frozen plant fruits, and when preparing small samples, it is difficult to ensure sufficient contact between the sample and the grinding components, often resulting in incomplete grinding and uneven powder coarseness, which affects the accuracy of subsequent experiments such as sample component analysis. Therefore, there is a need for a small grinding device that uses a small electric-driven grinding method, combined with a pusher structure, to ensure uniform and thorough grinding, and to facilitate the handling of samples and sample materials. Utility Model Content
[0004] To address the existing technical problems, this application provides a small-scale grinding device.
[0005] This application provides a small-scale grinding device, which adopts the following technical solution: A small-scale grinding device includes a collection box: a grinding jar is fixedly connected to the top of the collection box and communicates with it; a cover is closed on the top of the grinding jar; a fixing frame is fixedly connected to the top of the cover; a grinding assembly is provided in the inner cavity of the grinding jar; the grinding assembly includes a rotating column rotatably connected to the inner cavity of the grinding jar; a grinding ball is fixedly connected to the bottom of the surface of the rotating column; multiple annularly distributed feeding grooves are opened on the surface of the grinding ball; a drive column is rotatably connected to the inner cavity of the fixing frame; a servo motor is fixedly installed on the right side of the inner cavity of the fixing frame; a drive bevel gear is fixedly connected to the output shaft of the servo motor; a force-bearing bevel gear is fixedly connected to the surface of the drive column; the drive bevel gear and the force-bearing bevel gear mesh with each other; a pushing assembly is provided in the inner cavity of the cover; and a slidable dropping box is provided through the front side of the collection box.
[0006] By adopting the above technical solution, the drive source is improved through the combined use of servo motor, drive bevel gear and force bevel gear. With the combined use of grinding components and grinding tank, plant frozen blocks are ground. At the same time, with the combined use of collection box and discharge box, the powdered plant frozen blocks are collected and stored, thus achieving the purpose of easy grinding and sample preparation and thorough grinding.
[0007] Preferably, the top of the rotating column is fixedly connected to a connector, and the bottom of the driving column is provided with a mating groove adapted to the connector, and the connector is inserted into the inner cavity of the mating groove.
[0008] By adopting the above technical solution, and through the combined use of the joint and the docking groove, the rotating column and the driving column play a docking and transmission role, thereby enabling the driving column to indirectly drive the grinding ball to rotate and grind the plant frozen block.
[0009] Preferably, the feeding assembly includes a pusher head slidably connected to the inner cavity of the grinding tank, and push rods are fixedly connected to the front and rear sides of the top of the pusher head. The top of the push rod extends through to the top of the cap and is slidably connected to the cap.
[0010] Preferably, a spring is fitted onto the surface of the push rod, and the top and bottom ends of the spring are welded to the push rod and the cap, respectively.
[0011] Preferably, the bottom of the pusher head has a reserved groove adapted to the grinding ball.
[0012] By adopting the above technical solution, and through the setting of the feeding assembly, in which the push rod and spring work together, the user can push the push head downward, so that the plant jelly block located in the inner cavity of the grinding tank can be pushed onto the surface of the grinding ball, thereby allowing the grinding ball to fully contact the plant jelly block and achieve thorough grinding.
[0013] In summary, this application includes at least one of the following beneficial technical effects:
[0014] 1. This utility model improves the driving source by using a servo motor, a drive bevel gear and a force-receiving bevel gear in combination. With the combined use of the grinding components and the grinding tank, plant jelly blocks are ground. At the same time, with the combined use of the collection box and the discharge box, the powdered plant jelly blocks are collected and stored, thus achieving the purpose of easy grinding and sample preparation and thorough grinding.
[0015] 2. This utility model uses the joint and the docking groove together to enable the rotating column and the driving column to play a docking transmission role, thereby enabling the driving column to indirectly drive the grinding ball to rotate and grind the plant frozen block.
[0016] 3. Through the setting of the pusher assembly, in which the pusher and spring work together, the user can push the pusher head downward, so that the plant jelly block located in the inner cavity of the grinding tank can be pushed onto the surface of the grinding ball, thereby allowing the grinding ball to fully contact the plant jelly block and achieve thorough grinding. Attached Figure Description
[0017] in:
[0018] Figure 1 This is a perspective view of one embodiment of the present utility model;
[0019] Figure 2 This is a front cross-sectional view of one embodiment of the present invention;
[0020] Figure 3 This is an exploded perspective view of a grinding jar and grinding assembly according to an embodiment of the present invention;
[0021] Figure 4 This is an exploded perspective view of a sealing cap, fixing frame, grinding assembly, and pushing assembly according to one embodiment of the present invention.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 1. Collection box; 2. Grinding jar; 3. Cover; 4. Fixing frame; 5. Grinding assembly; 51. Rotating column; 52. Grinding ball; 53. Feed chute; 54. Drive column; 55. Connecting joint; 56. Connecting groove; 6. Servo motor; 7. Drive bevel gear; 8. Force-bearing bevel gear; 9. Pushing assembly; 91. Push head; 92. Push rod; 93. Spring; 94. Reserved groove; 10. Drop box. Detailed Implementation
[0024] In the following description, embodiments of the small-scale grinding equipment of the present invention will be described with reference to the accompanying drawings.
[0025] Example 1:
[0026] Combination Figure 1-4This application discloses a small-scale grinding device, including a collection box 1. A grinding jar 2 is fixedly connected to the top of the collection box 1 and communicates with it. A cover 3 is placed on the top of the grinding jar 2, and a fixing frame 4 is fixedly connected to the top of the cover 3. A grinding assembly 5 is provided inside the grinding jar 2. The grinding assembly 5 includes a rotating column 51 rotatably connected to the inside of the grinding jar 2. Grinding balls 52 are fixedly connected to the bottom of the surface of the rotating column 51. Multiple annularly distributed feeding grooves 53 are formed on the surface of the grinding balls 52. A drive column 54 is rotatably connected to the inside of the fixing frame 4. A connector 55 is fixedly connected to the top of the rotating column 51, and the bottom of the drive column 54... A mating groove 56 is provided to fit the mating connector 55. The mating connector 55 is inserted into the inner cavity of the mating groove 56. Through the cooperation of the mating connector 55 and the mating groove 56, the rotating column 51 and the driving column 54 achieve a docking transmission function, thereby allowing the driving column 54 to indirectly drive the grinding ball 52 to rotate and grind the frozen chili pepper pieces. A servo motor 6 is fixedly installed on the right side of the inner cavity of the fixing frame 4. The output shaft of the servo motor 6 is fixedly connected to a driving bevel gear 7. A force-bearing bevel gear 8 is fixedly connected to the surface of the driving column 54. The driving bevel gear 7 and the force-bearing bevel gear 8 mesh with each other. A pusher assembly 9 is provided in the inner cavity of the cover 3.
[0027] Example 2:
[0028] Combination Figure 1-4 The feeding assembly 9 includes a pusher head 91 slidably connected to the inner cavity of the grinding tank 2. Push rods 92 are fixedly connected to the front and rear sides of the top of the pusher head 91. The top of the push rods 92 extends through to the top of the cover 3 and is slidably connected to the cover 3. A spring 93 is sleeved on the surface of the push rods 92. The top and bottom ends of the spring 93 are welded to the push rods 92 and the cover 3, respectively. A reserved groove 94 adapted to the grinding ball 52 is opened at the bottom of the pusher head 91. Through the setting of the feeding assembly 9, the push rods 92 and the spring 93 work together to allow the user to push the pusher head 91 downward, so that the frozen pepper pieces in the inner cavity of the grinding tank 2 can be pushed onto the surface of the grinding ball 52, so that the grinding ball 52 can fully contact the frozen pepper pieces and grind them thoroughly. A slidable discharge box 10 is provided through the front side of the collection box 1.
[0029] Example 3:
[0030] Combination Figure 1-4This application discloses a small grinding device, particularly suitable for grinding frozen chili fruit samples. When using this device to grind frozen chili fruit samples, the user places the frozen chili fruit sample into the inner cavity of the grinding jar 2, then secures the cap 3 to the top of the grinding jar 2, causing the connector 55 to engage with the inner cavity of the mating groove 56. The servo motor 6 is then activated, driving the drive bevel gear 7 to rotate. Under the meshing transmission of the drive bevel gear 7 and the force-bearing bevel gear 8, the drive column 54 rotates simultaneously. The drive column 54, through the cooperation of the connector 55 and the mating groove 56, drives the rotating column 5... 1. Rotation occurs within the inner cavity of the grinding jar 2. During rotation, the rotating column 51 drives the grinding ball 52 to rotate, grinding the frozen chili fruit sample block through the grinding ball 52. The ground frozen chili fruit sample block slides down from the inner cavity of the feeding trough 53 and enters the inner cavity of the collection box 1. Finally, the frozen chili fruit sample block powder falls into the inner cavity of the feeding box 10. During the grinding process, the user can hold the push rod 92 and push it downward, causing the push head 91 to slide downward from the inner cavity of the grinding jar 2 and squeeze the frozen chili fruit sample block, so that the frozen chili fruit sample block comes into close contact with the grinding ball 52, thereby allowing the frozen chili fruit sample block to be fully ground.
[0031] In summary, this small-scale grinding device, through the combined use of servo motor 6, drive bevel gear 7, and force-receiving bevel gear 8, improves the driving source. With the combined use of grinding component 5 and grinding tank 2, it grinds frozen blocks of chili fruit samples. At the same time, with the combined use of collection box 1 and discharge box 10, it collects and stores the powdered frozen blocks of chili fruit samples, thus achieving the purpose of easy grinding and sample preparation, and thorough and rapid grinding.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A small-scale sample grinding apparatus, characterized by, The system includes a collection box (1): a grinding jar (2) is fixedly connected to the top of the collection box (1) and communicates with it; a cover (3) is closed on the top of the grinding jar (2); a fixing frame (4) is fixedly connected to the top of the cover (3); a grinding assembly (5) is provided in the inner cavity of the grinding jar (2); the grinding assembly (5) includes a rotating column (51) rotatably connected to the inner cavity of the grinding jar (2); a grinding ball (52) is fixedly connected to the bottom of the surface of the rotating column (51); and multiple ring-shaped grinding balls (52) are formed on the surface of the grinding ball (52). The material feeding trough (53) has a drive column (54) rotatably connected to the inner cavity of the fixed frame (4). A servo motor (6) is fixedly installed on the right side of the inner cavity of the fixed frame (4). A drive bevel gear (7) is fixedly connected to the output shaft of the servo motor (6). A force-bearing bevel gear (8) is fixedly connected to the surface of the drive column (54). The drive bevel gear (7) and the force-bearing bevel gear (8) mesh with each other. A material pushing assembly (9) is provided in the inner cavity of the cover (3). A slidable material dropping box (10) is provided through the front side of the collection box (1).
2. A small-scale sample grinding device according to claim 1, characterized in that The top of the rotating column (51) is fixedly connected to a connector (55), and the bottom of the driving column (54) is provided with a mating groove (56) that is compatible with the connector (55). The connector (55) is inserted into the inner cavity of the mating groove (56).
3. A small-scale sample grinding device according to claim 2, wherein The feeding assembly (9) includes a pusher (91) slidably connected to the inner cavity of the grinding tank (2). A push rod (92) is fixedly connected to the front and rear sides of the top of the pusher (91). The top of the push rod (92) extends through to the top of the cover (3) and is slidably connected to the cover (3).
4. A small-scale sample grinding device according to claim 3, wherein A spring (93) is fitted on the surface of the push rod (92), and the top and bottom ends of the spring (93) are welded to the push rod (92) and the cover (3) respectively.
5. A small-scale sample grinding device according to claim 4, wherein The bottom of the pusher (91) is provided with a reserved groove (94) that is adapted to the grinding ball (52).