Small-treatment-capacity sample crushing device
By designing a detachable sample tube and a crushing rod driven by a driving motor, the residual samples are directly crushed and rinsed in the sample tube, the problem of waste of sticky samples on the inner wall when the sample volume is small is solved, and efficient sample crushing and solution replenishment is achieved.
Patent Information
- Application Number
- CN202323584859.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-27
AI Technical Summary
In food inspection experiments, when using existing crushing devices when the sample volume is small, the sample will easily stick to the inner wall and cause waste, and increasing the grinding volume will not avoid the problem of loss.
A small-process sample crushing device is designed, including a removable sample tube, mounting cap and drive motor. The sample is crushed through a crushing rod, and after the crushing is completed, the residual sample is rinsed with solution and transferred directly into the sample tube to avoid the inner wall. Waste of sticky samples.
It effectively avoids sample waste, solves the waste problem caused by sticking samples on the inner wall of the crushing device when the sample volume is small, and achieves efficient sample crushing and solution replenishment.
Smart Images
Figure CN222299284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sample crushing devices, in particular to a small-processing-volume sample crushing device. Background Art
[0002] During the food inspection experiment, it is generally necessary to use a crushing device to crush the sample, and then transfer the crushed sample to a sample tube, and then add a solution (or water) to conduct subsequent inspection experiments. The crushing device can be a grinding device, usually such as a grinding bowl. The sample is placed in the grinding bowl, and the sample is ground with a grinding rod to crush the sample, and then the sample is transferred to the sample tube, and then the sample tube is weighed to add the solution (deducting the weight of the empty sample tube, that is, the sample weight). Usually, the sample will stick to the inner wall of the grinding bowl. In order to meet the sample quantity requirements, the amount of sample grinding will generally increase. However, in some cases, the sample quantity is small, and it is difficult to resample, and the sample needs to be saved. When using a grinding bowl, the inner wall will stick to the sample, and the sample will be lost. Increasing the amount of ground sample will cause waste of sample (and using other means, such as an electric homogenizer, there will also be a problem of waste caused by sticking to the inner wall). Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides a small-processing-volume sample crushing device, which solves the problem in the prior art that when the sample amount is small, the sample is adhered to the inner wall of the crushing device, resulting in sample waste.
[0004] According to an embodiment of the utility model, a small-volume sample crushing device includes a base, a sample tube detachably connected to the top surface of the base and vertically arranged, a mounting cap detachably connected to one end of the sample tube away from the base, and a drive motor mounted on the mounting cap, wherein the lower end of the sample tube is connected to the base and a crushing rod is rotatably arranged coaxially in the sample tube, and the upper end of the crushing rod rotates through the mounting cap and is fixedly connected to the rotating shaft of the drive motor.
[0005] In the above embodiment, the sample tube is the same as that in the prior art, but during operation, the sample is directly placed therein, and then after the mounting cap is installed, the drive motor can be started to drive the crushing rod to crush the sample. After the crushing is completed, the mounting cap is removed, and the crushing rod is rinsed with a solution during the removal process, and the residual sample on the crushing rod is directly flushed into the sample tube, and the solution is also replenished into the sample tube. This avoids the waste of samples and solves the problem in the prior art that when the sample amount is small, the sample is wasted due to the sample sticking to the inner wall of the crushing device.
[0006] Furthermore, a plurality of crushing leaves are fixedly connected to the crushing rod.
[0007] Furthermore, the mounting cap is threadably connected to the sample tube.
[0008] Furthermore, the base is recessed with an accommodating hole, the inner wall of the accommodating hole is fixedly connected with an elastic layer, the elastic layer is cylindrical and the inner wall of the upper end is configured as an upwardly open structure for the sample tube to be inserted into the cylinder.
[0009] Furthermore, the mounting cap is provided with a through hole and an elastic sleeve engaged with the through hole, and the inner wall of the elastic sleeve is also fixedly connected with a rotating cylinder rotatably sleeved outside the breaking rod.
[0010] Furthermore, the elastic sleeve is also fixedly connected to an elastic ring, and the elastic ring is clamped between the driving motor and the top surface of the mounting cap.
[0011] Furthermore, a suction cup is fixedly connected to the bottom surface of the base.
[0012] Furthermore, it also includes a sample cap detachably connected to an end of the sample tube away from the base.
[0013] Furthermore, the sample cap is threadably connected to the sample tube.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] By directly crushing the sample in the sample tube, the sample remaining on the crushing rod is transferred to the sample tube using a solution, and the solution is also replenished into the sample tube, thus avoiding the waste of sample and solving the problem in the prior art that when the sample amount is small, the inner wall of the crushing device sticks to the sample, resulting in sample waste. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;
[0017] Figure 2 for Figure 1 A schematic diagram of the enlarged local structure at center A;
[0018] Figure 3 for Figure 1 A magnified schematic diagram of the local structure at B in the middle;
[0019] In the above drawings:
[0020] Base 1, sample tube 2, mounting cap 3, driving motor 4, breaking rod 5, sample cap 6, suction cup 7, breaking leaf 8, elastic layer 9, elastic sleeve 10, rotating cylinder 11, elastic ring 12. DETAILED DESCRIPTION
[0021] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0022] 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.
[0023] like Figure 1 As shown, this embodiment provides a small-processing volume sample crushing device, which includes a base 1, and a sample tube 2 that is detachably connected to the top surface of the base 1 and vertically arranged, and a mounting cap 3 that is detachably connected to one end of the sample tube 2 away from the base 1, and a driving motor 4 installed on the mounting cap 3, wherein the lower end of the sample tube 2 is connected to the base 1 and a crushing rod 5 is rotatably arranged coaxially in the sample tube 2, and the upper end of the crushing rod 5 rotates through the mounting cap 3 and is fixedly connected to the rotating shaft of the driving motor 4.
[0024] In the above embodiment, the sample tube 2 is the same as that in the prior art, but during operation, the sample is directly placed therein, and then after the mounting cap 3 is installed, the driving motor 4 can be started to drive the crushing rod 5 to crush the sample. After the crushing is completed, the mounting cap 3 is removed, and the crushing rod 5 is rinsed with a solution during the removal process, and the residual sample on the crushing rod 5 is directly flushed into the sample tube 2, and the solution is also replenished into the sample tube 2, thus avoiding the waste of the sample and solving the problem in the prior art that the sample is wasted due to the sticking of the sample to the inner wall of the crushing device when the sample amount is small;
[0025] The base 1 is equivalent to providing a detachable support for the bottom of the sample tube 2, ensuring that the sample tube 2 is relatively stable during the crushing process. After completion, the sample tube 2 and the sample therein can be removed and used directly. In particular, after removing the mounting cap 3 and the drive motor 4, the structure of the upper sealing tube can be replaced, that is, the device also includes a sample cap 6 detachably connected to the end of the sample tube 2 away from the base 1, and the sample cap 6 is threadedly connected to the sample tube 2, so that subsequent operations can be performed in the same way as the sample tube 2 in the prior art. Furthermore, the mounting cap 3 in this embodiment can also be connected to the sample tube 2 by a threaded connection.
[0026] like Figure 1As shown, further, in order to increase the stability of the base 1, a suction cup 7 is fixedly connected to the bottom surface of the base 1, and the suction cup 7 can make the base 1 adsorbed and fixed on a platform (such as a laboratory operating table), so that the device can be relatively more stable during crushing.
[0027] like Figure 1 As shown, a plurality of crushing leaves 8 are fixedly connected to the crushing rod 5, so that the crushing efficiency can be improved.
[0028] like Figure 1 , 2 As shown, the base 1 is provided with a recessed receiving hole, and the inner wall of the receiving hole is fixedly connected with an elastic layer 9, and the elastic layer 9 is formed into a cylindrical shape, and the inner wall of the upper end is provided with an open structure facing upwards for the sample tube 2 to be inserted into the cylindrical shape. The receiving hole is provided so that the lower end of the sample tube 2 can be inserted therein, thereby achieving relative fixation, and the provided elastic layer 9 allows the sample tube 2 and the base 1 to be elastically pressed, thereby achieving fixation of the lower end of the sample tube 2 and ensuring overall stability during operation, and the open setting allows the lower end of the sample tube 2 to enter the elastic layer 9 (i.e., the receiving hole) more easily.
[0029] like Figure 1 , 2 As shown in FIG. 3 , the mounting cap 3 is provided with a through hole and an elastic sleeve 10 engaged with the through hole. The inner wall of the elastic sleeve 10 is also fixedly connected with a rotating cylinder 11 rotatably sleeved outside the breaking rod 5 . In this way, a mounting foundation is provided for the elastic sleeve 10 and the rotating cylinder 11 through the through hole. The rotating cylinder 11 surrounds the outside of the crushing rod 5, and a rotation gap is set between the two to ensure that the crushing rod 5 can rotate normally with the driving motor 4, thereby driving the crushing rod 5 and the crushing leaves 8 thereon to rotate and crush the sample, and the outer elastic sleeve 10 can play a buffering role to prevent excessive vibration from being transmitted to the mounting cap 3 when the driving motor 4 is running. Furthermore, the elastic sleeve 10 is also fixedly connected to an elastic ring 12, and the elastic ring 12 is clamped between the driving motor 4 and the top surface of the mounting cap 3, that is, the driving motor 4 can directly rest on the elastic ring 12, which is more stable, and also prevents more vibration from being transmitted to the mounting cap 3 below. In particular, the elastic layer 9, elastic sleeve 10 and elastic ring 12 can all be made of rubber material, which play a buffering role through deformation, and the rotating cylinder 11 can be made of plastic or metal. The inner wall of the rotating cylinder 11 can be smoother, so that the crushing rod 5 can run more smoothly.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A small-volume sample crushing device, characterized in that: It includes a base, a sample tube detachably connected to the top surface of the base and arranged vertically, a mounting cap detachably connected to one end of the sample tube away from the base, and a driving motor installed on the mounting cap, wherein the lower end of the sample tube is connected to the base and a breaking rod is rotatably arranged in the sample tube coaxially, and the upper end of the breaking rod rotates through the mounting cap and is fixedly connected to the rotating shaft of the driving motor.
2. The small-volume sample crushing device according to claim 1, characterized in that: A plurality of crushing leaves are fixedly connected to the crushing rod.
3. The small-volume sample crushing device according to claim 1, characterized in that: The mounting cap is threadably connected to the sample tube.
4. The small-volume sample crushing device according to claim 1, characterized in that: The base is recessed with an accommodating hole, the inner wall of the accommodating hole is fixedly connected with an elastic layer, the elastic layer is cylindrical and the inner wall of the upper end is an upwardly facing open structure for the sample tube to be inserted into the cylinder.
5. The small-volume sample crushing device according to claim 1, characterized in that: The mounting cap is provided with a through hole and an elastic sleeve engaged with the through hole, and the inner wall of the elastic sleeve is also fixedly connected with a rotating cylinder rotatably sleeved outside the breaking rod.
6. The small-volume sample crushing device according to claim 5, characterized in that: The elastic sleeve is also fixedly connected with an elastic ring, and the elastic ring is clamped between the driving motor and the top surface of the mounting cap.
7. The small-volume sample crushing device according to any one of claims 1 to 6, characterized in that: The bottom surface of the base is also fixedly connected with a suction cup.
8. The small-volume sample crushing device according to claim 1, characterized in that: The invention also comprises a sample cap which is detachably connected to an end of the sample tube away from the base.
9. The small-volume sample crushing device according to claim 8, characterized in that: The sample cap is threadably connected to the sample tube.