CN109182105B - Rotary clamping hand-held tissue grinder - Google Patents
Rotary clamping hand-held tissue grinder Download PDFInfo
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- CN109182105B CN109182105B CN201811134806.4A CN201811134806A CN109182105B CN 109182105 B CN109182105 B CN 109182105B CN 201811134806 A CN201811134806 A CN 201811134806A CN 109182105 B CN109182105 B CN 109182105B
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M35/00—Means for application of stress for stimulating the growth of microorganisms or the generation of fermentation or metabolic products; Means for electroporation or cell fusion
- C12M35/04—Mechanical means, e.g. sonic waves, stretching forces, pressure or shear stimuli
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Abstract
The invention relates to a rotary clamping hand-held tissue grinder, which comprises: the grinding pestle comprises a grinding pestle, a sleeve matched with the grinding pestle, an elastic part propped against the upper end part of the grinding pestle and a unidirectional rotation clamping mechanism for positioning the grinding pestle; the grinding pestle is composed of a grinding pestle body and a large diameter part sleeved on the upper end part of the grinding pestle body. Thus, by utilizing the unidirectional rotation clamping mechanism, under the action of the elastic part, the grinding pestle is reliably positioned, after finishing grinding, the grinding pestle is pressed again, the grinding pestle is separated from the unidirectional rotation clamping mechanism by rotating the grinding pestle, and the grinding pestle automatically pops up under the action of the resilience force of the elastic part, so that the operation process is faster and more efficient, and the infection of a grinding solution to a human body is reduced.
Description
Technical Field
The invention relates to a tissue grinder, in particular to a rotary clamping hand-held tissue grinder.
Background
The tissue grinder grinds the tissue to produce a tissue homogenate, an instrument for extracting RNA, DNA or protein. The existing tissue grinder on the market is unreasonable in structural design, is manually plugged and pulled out, and is complex to operate. As the grinding objects are tissue cells, bacteria and the like, if the grinding objects are directly plugged by hands, pollution or auxiliary tools are plugged, but the operation process is too complicated, and secondary pollution exists. Thus, a technician is required to solve the above problems.
Disclosure of Invention
The invention aims to solve the technical problem of providing a rotary clamping hand-held tissue grinder which is simple in structural design, quick in grinding pestle insertion and extraction and capable of avoiding pollution to the grinder due to direct touch in the insertion and extraction process.
In order to solve the technical problems, the invention relates to a rotary clamping hand-held tissue grinder, which comprises: the grinding pestle comprises a grinding pestle, a sleeve matched with the grinding pestle, an elastic part propped against the upper end part of the grinding pestle and a unidirectional rotation clamping mechanism for positioning the grinding pestle; the grinding pestle is composed of a grinding pestle body and a large diameter part sleeved on the upper end part of the grinding pestle body.
Adopt above-mentioned technical scheme's hand-held type tissue grinder utilizes unidirectional rotation screens mechanism, under the effect of elasticity portion, carries out reliable location to grinding pestle, grinds the back, presses again and grinds the pestle, makes it break away from unidirectional rotation screens mechanism through rotating grinding pestle, grinds the pestle and pops out under the effect of elasticity portion resilience force automatically, thereby makes the operation process more swift, and is high-efficient, and reduces the infection of grinding solution to the human body.
As a further improvement of the invention, the unidirectional rotation clamping mechanism comprises a spiral groove part and a vertical groove communicated with the spiral groove part. The spiral groove part comprises a first spiral groove, a second spiral groove and a rectangular groove which are arranged alternately in sequence and play a role in communication. Along the rotation direction of the grinding pestle, the heights of the bottom walls of the first spiral groove, the second spiral groove and the rectangular groove are sequentially increased in a step-by-step mode. The number of the first spiral grooves and the second spiral grooves are two. The lead angle of the second spiral groove is larger than that of the first spiral groove. The number of the vertical grooves is also two, and the vertical grooves are symmetrically arranged. The elastic ring is fixed on the long side of the L-shaped buckle. The short side of the L-shaped buckle passes through the side wall of the sleeve and always abuts against the bottom wall of the spiral groove part or the vertical groove for sliding.
Under the effect of elastic ring, L shape buckle elasticity is pressed and is leaned on the diapire of helicla flute, and restrict the diapire height of each constituent section of this helicla flute respectively to make the operation of rotatory screens mechanism have unidirectionality, satisfy the operation requirement, in addition, guaranteed the stability of grinding pestle self location after the installation is accomplished.
As a further improvement of the invention, two guide grooves with big upper part and small lower part are arranged at the upper end of the big diameter part and are respectively communicated with each vertical groove.
By adopting the technical scheme, the alignment program in the grinding pestle installation process is avoided, and the installation efficiency is improved.
As a further improvement of the invention, the outer side wall of the sleeve is provided with a strip-shaped groove for placing the long side of the L-shaped buckle and an annular groove for placing the elastic ring.
Through adopting above-mentioned technical scheme to set up, under the prerequisite that satisfies relevant functional requirement, optimized the structural design form of sleeve self, and be convenient for carry out the operation of renewing to L shape buckle.
As a further improvement of the invention, the groove widths of the vertical groove, the first spiral groove, the rectangular groove and the second spiral groove are consistent, and are matched with the diameters of the short sides of the L-shaped buckles.
Through adopting above-mentioned technical scheme to set up, guaranteed to grind the pestle and have better steadiness after the installation is accomplished oneself, in addition, improved the installation, dismantle in-process and grind the rotatory stationarity of pestle.
As a further development of the invention, a wear layer is provided on the short sides of the L-shaped clasp. The wear-resistant layer is TiCN coating with the thickness of 3-5 mu m.
By adopting the technical scheme, the wear rate of the L-shaped buckle is reduced, the service life of the L-shaped buckle is prolonged, and the maintenance frequency of the handheld tissue grinder is reduced.
As a further improvement of the invention, the elastic part comprises a sliding sleeve sliding along the side wall of the sleeve and a columnar spring playing an elastic supporting role on the sliding sleeve. The sliding sleeve is sleeved on the grinding pestle body and is propped against the large-diameter part.
Through adopting above-mentioned technical scheme to set up, structural design is extremely simple, and column spring self stable performance is higher in addition, and need not to carry out the later maintenance.
As a further improvement of the present invention, the stiffness of the columnar spring is set between 0.6 and 0.1Kg/mm.
As a further improvement of the invention, a graphite lubrication part is arranged on the side wall of the sleeve; the graphite lubrication part comprises a plurality of columnar graphite uniformly inlaid on the side wall of the sleeve.
By adopting the technical scheme, the friction coefficient between the sliding sleeve and the sleeve is reduced, and the wear rate of the sliding sleeve and the sleeve is reduced, so that the maintenance frequency of the handheld tissue grinder is reduced.
As a further improvement of the invention, the rotary clamping hand-held tissue grinder also comprises a protective sleeve which is sleeved on the outer side wall of the sleeve. The protective sleeve is a plastic sleeve and is in interference fit with the sleeve.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a rotary, detent, hand-held tissue grinder of the present invention.
Fig. 2 is a cross-sectional view of a rotary, detent, hand-held tissue grinder (unground pestle) of the present invention.
Fig. 3 is a schematic perspective view of a grinding pestle in a hand-held tissue grinder of the present invention with a quick change grinding pestle.
Fig. 4 is a front view of the grinding pestle in the hand-held tissue grinder of the present invention with the grinding pestle quickly replaced.
Fig. 5 is a side view of a grinding pestle in a hand-held tissue grinder of the present invention with a quick change grinding pestle.
Fig. 6 is a schematic perspective view of a sleeve in a rotary, click-type hand-held tissue grinder of the present invention.
Fig. 7 is a diagram illustrating the assembly and disassembly of the rotary clamping hand-held tissue grinder of the present invention.
1-grinding a pestle; 11-grinding a pestle body; 12-large diameter portion; 2-a sleeve; 21-a strip-shaped groove; 22-an annular groove; 3-an elastic part; 31-sliding sleeve; 32-a cylindrical spring; 4-a unidirectional rotation clamping mechanism; 41-a helical groove portion; 411-first helical groove; 412-a second helical groove; 413-rectangular grooves; 42-vertical slots; 43-L shaped clasp; 44-an elastic ring; 45-guiding grooves; 5-protective sleeve.
Detailed Description
In the following, the present invention will be described in further detail with reference to the specific embodiments, fig. 1 is a schematic perspective view of a rotary clamping hand-held tissue grinder of the present invention, which is composed of a grinding pestle 1, a sleeve 2, an elastic portion (not shown in the drawings), a unidirectional rotary clamping mechanism 4, a protective sleeve 5, and the like, wherein the grinding pestle 1 is composed of a grinding pestle body 11 and a large diameter portion 12 sleeved on an upper end portion of the grinding pestle body 11 (as shown in fig. 3). The unidirectional rotation detent mechanism 4 includes a spiral groove 41 and a vertical groove 42 communicating with the spiral groove 41. The spiral groove portion 41 includes a first spiral groove 411, a second spiral groove 412, and a rectangular groove 413 arranged alternately in this order. The heights of the bottom walls of the first spiral groove 411, the second spiral groove 412 and the rectangular groove 413 are sequentially stepped in the rotation direction of the grinding pestle 1. The number of the first spiral grooves 411 and the second spiral grooves 412 is two, and the rising angle of the second spiral grooves 412 is preferably 25-35 degrees larger than that of the first spiral grooves 411. The number of vertical slots 42 is also provided in two pieces, symmetrically arranged (as shown in fig. 4, 5). In addition, in order to make the operation of the rotary latch mechanism unidirectional, satisfying the use requirement, the rotary latch mechanism further comprises two L-shaped buckles 43 fixed on the sleeve 2 and arranged opposite to the vertical grooves 42, and an elastic ring 44 (as shown in fig. 2) for fixing the long sides of the L-shaped buckles 43, thereby ensuring the stability of self-positioning of the grinding pestle 1 after the installation is completed. An elongated groove 21 for placing the long side of the L-shaped buckle 43 and an annular groove 22 for placing the elastic ring 44 are formed on the outer side wall of the sleeve 2 (as shown in fig. 6). The short side of the L-shaped catch 43 passes through the side wall of the sleeve 2 and always slides against the bottom wall of the spiral groove 41 or the vertical groove 42.
In order to improve the installation efficiency of the grinding pestle 1 and avoid the alignment procedure in the installation process, two guide grooves 45 with big top and small bottom may be provided at the upper end of the big diameter portion 12, and the two guide grooves are respectively communicated with each vertical groove 42.
In order to ensure that the grinding pestle has better stability after the installation, as a further optimization of the rotary clamping hand-held tissue grinder, the groove widths of the vertical groove 42, the first spiral groove 411, the rectangular groove 413 and the second spiral groove 412 can be set to be consistent, and the groove widths are matched with the diameters of the short sides of the L-shaped buckles 43, so that the rotation stability of the grinding pestle 1 in the installation and disassembly processes is improved.
Furthermore, a wear layer may be provided on the short side of the L-shaped clasp 43 to improve its wear resistance. The wear-resistant layer is preferably a TiCN coating, and the thickness is generally 3-5 mu m.
The elastic portion may be provided with reference to the following modes: which comprises a sliding sleeve 31 sliding along the side wall of the sleeve 2 and a cylindrical spring 32 which plays an elastic supporting role for the sliding sleeve 31. The sliding sleeve 31 is sleeved on the grinding pestle body 11 and abuts against the large-diameter portion 12. The stiffness of the columnar spring 32 is preferably 0.6 to 0.1Kg/mm.
Furthermore, a graphite lubrication part (not shown) may be provided on the side wall of the sleeve 2, so that the friction coefficient between the sliding sleeve 31 and the sleeve 2 is reduced, and the service lives of both can be prolonged. The recommended arrangement of the graphite lubrication part is as follows: the side wall of the sleeve 2 is uniformly provided with a plurality of columnar grooves for embedding columnar graphite, and the height of the columnar graphite is preferably slightly higher than that of the side wall of the sleeve 2, preferably 0.3-0.5 mm, so that a lubricating film can be formed on the side wall of the sleeve 2 quickly.
In addition, a protective sleeve 5 can be sleeved on the outer side wall of the sleeve 2. The protective sleeve 5 is a plastic sleeve and is in interference fit with the sleeve 2.
Finally, FIG. 7 illustrates the operational sequence of the installation and removal of the rotary, detent, handheld tissue grinder of the present invention. In the process of installation, the grinding pestle 1 is only required to be vertically placed on a universal pipe rack (not shown in the figure) in advance, then the sleeve 2 is aligned with the installation end of the grinding pestle 1, the force is applied to the sleeve, the sleeve is pressed down, and the positioning operation of the grinding pestle 1 is completed under the action of the elastic part 3. After the tissue grinding is finished, the grinding end of the grinding pestle 1 is propped against the clean material box, the sleeve 2 is pressed with force again, the grinding pestle 1 is separated from the unidirectional rotation clamping mechanism 4 by rotating, the grinding pestle 1 automatically pops out under the action of the resilience force of the elastic part 3, so that the operation process is more rapid and efficient, and the infection of a grinding solution to a human body is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A rotary, detent, hand-held tissue grinder, comprising: the grinding device comprises a grinding pestle, a sleeve matched with the grinding pestle, an elastic part propped against the upper end part of the grinding pestle and a unidirectional rotation clamping mechanism for positioning the grinding pestle; the grinding pestle is composed of a grinding pestle body and a large-diameter part sleeved on the upper end part of the grinding pestle body;
the unidirectional rotation clamping mechanism comprises a spiral groove part and a vertical groove communicated with the spiral groove part; the spiral groove part comprises a first spiral groove, a second spiral groove and a rectangular groove which are arranged at intervals in sequence and play a role in communication; along the rotation direction of the grinding pestle, the heights of the bottom walls of the first spiral groove, the second spiral groove and the rectangular groove are sequentially increased in a step-by-step mode; the number of the first spiral grooves and the number of the second spiral grooves are two; the lead angle of the second spiral groove is larger than that of the first spiral groove; the number of the vertical grooves is also two, and the vertical grooves are symmetrically arranged; the elastic ring is fixed on the long side of the L-shaped buckle; the short side of the L-shaped buckle penetrates through the side wall of the sleeve and always abuts against the bottom wall of the spiral groove part or the vertical groove to slide;
and a plurality of columnar grooves are uniformly formed in the side wall of the sleeve.
2. The rotary index hand-held tissue grinder of claim 1, wherein: two guide grooves with big upper part and small lower part are arranged at the upper end of the big diameter part and are respectively communicated with each vertical groove.
3. The rotary index hand-held tissue grinder of claim 1, wherein: the outer side wall of the sleeve is provided with a strip-shaped groove for placing the long side of the L-shaped buckle and an annular groove for placing the elastic ring.
4. The rotary index hand-held tissue grinder of claim 1, wherein: the groove widths of the vertical groove, the first spiral groove, the rectangular groove and the second spiral groove are consistent, and the groove widths are matched with the diameters of the short sides of the L-shaped buckles.
5. The rotary index hand held tissue grinder of claim 4 wherein: a wear-resistant layer is arranged on the short side of the L-shaped buckle; the wear-resistant layer is a TiCN coating with the thickness of 3-5 mu m.
6. The rotary index hand held tissue grinder as defined in any one of claims 1-5, wherein: the elastic part comprises a sliding sleeve sliding along the side wall of the sleeve and a columnar spring playing an elastic supporting role on the sliding sleeve; the sliding sleeve is sleeved on the grinding pestle body and abuts against the large-diameter portion.
7. The rotary index hand-held tissue grinder of claim 6 wherein: the rigidity of the columnar spring is set between 0.6 Kg/mm and 0.1Kg/mm.
8. The rotary index hand-held tissue grinder of claim 6 wherein: a graphite lubrication part is arranged on the side wall of the sleeve; the graphite lubrication part comprises a plurality of columnar graphite uniformly inlaid on the side wall of the sleeve.
9. The rotary index hand-held tissue grinder of claim 6 wherein: the protective sleeve is sleeved on the outer side wall of the sleeve; the protective sleeve is a plastic sleeve and is in interference fit with the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134806.4A CN109182105B (en) | 2018-09-27 | 2018-09-27 | Rotary clamping hand-held tissue grinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811134806.4A CN109182105B (en) | 2018-09-27 | 2018-09-27 | Rotary clamping hand-held tissue grinder |
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| Publication Number | Publication Date |
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| CN109182105A CN109182105A (en) | 2019-01-11 |
| CN109182105B true CN109182105B (en) | 2023-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811134806.4A Active CN109182105B (en) | 2018-09-27 | 2018-09-27 | Rotary clamping hand-held tissue grinder |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113122439A (en) * | 2021-05-08 | 2021-07-16 | 王琼 | Device for extracting protein and nucleic acid by breaking wall of fungus and method for extracting protein and nucleic acid by applying device |
| CN115109517A (en) * | 2022-06-23 | 2022-09-27 | 贵阳市政建设有限责任公司 | High-durability basement waterproof protective layer material and research and development device thereof |
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