CN110899007A - Low-speed freezing centrifuge - Google Patents
Low-speed freezing centrifuge Download PDFInfo
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- CN110899007A CN110899007A CN201911286838.0A CN201911286838A CN110899007A CN 110899007 A CN110899007 A CN 110899007A CN 201911286838 A CN201911286838 A CN 201911286838A CN 110899007 A CN110899007 A CN 110899007A
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- movable cover
- sealing plate
- working cavity
- shell
- plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B15/00—Other accessories for centrifuges
- B04B15/02—Other accessories for centrifuges for cooling, heating, or heat insulating
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Abstract
The invention discloses a low-speed freezing centrifuge, which structurally comprises a shell, a sealing device, a movable cover, a table board and a control panel, wherein the shell is provided with the movable cover, the movable cover is provided with the sealing device, the sealing device is connected with the movable cover, the movable cover is movably connected with the shell, the table board is positioned at the top of the shell, the control panel and the movable cover are both arranged on the table board, and the table board and the shell are arranged in an integrated structure, so that the centrifuge has the beneficial effects that: the piston body rotates and drives the clamping block to move along with the connecting rod, so that the clamping block slides on the annular track, the protrusion is in a quarter-sphere shape and is arranged, the vertical surface is close to the working cavity opening, the piston body is separated from the working cavity opening, the distance between the piston body and the working cavity opening is constant all the time, the clamping block is prevented from moving in the sliding process on the annular track, the movement track of the clamping block is further limited, and the movable cover is fixed with the working cavity opening.
Description
Technical Field
The invention relates to the field of biological centrifugation, in particular to a low-speed freezing centrifuge.
Background
When the material of different densities separates, traditional mode reaches the purpose through deposiing, but traditional mode time of deposiing is longer, in order to satisfy the experiment time demand in the laboratory, obtains the layering liquid of different density materials with the help of low-speed freezing centrifuge to the separation that carries out the material, and present low-speed freezing centrifuge has following defect:
the existing low-speed freezing centrifugal machine freezes by setting up two sets of freezing pipes, realizes that the test tube outside freezes simultaneously with interior survey, and the connection sealing degree between the bin cover of working bin and the bin body is poor, makes the low-temperature gas in the working bin leak easily, has aggravated refrigerating system's work load, and is easily frostbitten when low-temperature gas leaks staff's skin and touches the bin cover.
Disclosure of Invention
Aiming at the defects of the prior art, the invention is realized by the following technical scheme: a low-speed freezing centrifuge structurally comprises a shell, a sealing device, a movable cover, a table board and a control panel, wherein the movable cover is arranged on the shell, the sealing device is arranged on the movable cover and connected with the movable cover, the movable cover is movably connected with the shell, the table board is positioned at the top of the shell, the control panel and the movable cover are both arranged on the table board, and the table board and the shell are in an integrated structure;
the sealing device is composed of a filling mechanism, a fixing mechanism and a working cavity opening, wherein the filling mechanism is matched with the fixing mechanism, the fixing mechanism is installed on the edge of the movable cover, and the fixing mechanism is connected with the working cavity opening.
As a further optimization of the invention, the filling mechanism is composed of a telescopic rod, a movable plate, a negative pressure fan, two conveying pipelines, an air bag, a sealing plate and a sealing plate cavity, wherein the telescopic rod is fixedly connected with the movable plate, the movable plate is circularly arranged, the negative pressure fans are symmetrically arranged on two sides of the cavity where the movable plate is located, the negative pressure fan is connected with the conveying pipelines, the conveying pipelines are communicated with the air bag, the air bag is arranged on one end, far away from the negative pressure fan, of the conveying pipelines, the air bag is connected with the sealing plate, the sealing plate is arranged in the sealing plate cavity, and the sealing plate cavity is connected with the fixing mechanism.
As a further optimization of the invention, the fixing mechanism comprises three annular rails, connecting rods, fixture blocks and a piston body, the three annular rails are equally distributed by taking the center of the piston body as the center of a circle, the top view of the piston body is circular, the fixture blocks are arranged in the annular rails, the fixture blocks are in mechanical sliding fit with the annular rails, the fixture blocks are mechanically welded with the connecting rods, the fixture blocks are positioned on one end of the connecting rods, which is far away from the piston body, and the connecting rods are fixedly connected with the piston body.
The clamping block is further optimized to be composed of a protrusion, a clamping plate and a limiting block, the protrusion is arranged on the clamping plate, the clamping plate is fixedly connected with the connecting rod, the protrusion is located at the connecting position of the clamping plate and the connecting rod, the protrusion is arranged in a quarter-sphere shape and is solid, the limiting block is mechanically welded with the clamping plate, and the limiting block is located at the bottom of the clamping plate.
As a further optimization of the invention, one end of the sealing plate, which is connected with the air bag, is fixedly connected through glue, and one end of the sealing plate, which is far away from the air bag, is arranged in an arc shape, so that the edge of the sealing plate is conveniently attached to the inner diameter of the working cavity opening, and the tight connection of the working cavity opening and the sealing plate is realized.
Advantageous effects
The invention relates to a low-speed freezing centrifuge, which is characterized in that a substance to be cooled and centrifugally frozen is placed in a working cavity in a shell, a movable cover is covered to enable the movable cover to be embedded with a working cavity opening, the movable cover is rotated clockwise, a piston body is rotated and drives a clamping block to move along with the piston body through a connecting rod, the clamping block slides on an annular track, the clamping block stops sliding on a zero boundary line of the annular track, when the clamping block slides on the annular track, the piston body is separated from the working cavity opening because a bulge is arranged in a quarter-sphere-shaped solid shape and the vertical surface is close to the working cavity opening, the distance between the piston body and the working cavity opening is constant all the time, the clamping block is prevented from displacing in the sliding process on the annular track, the movement track of the clamping block is further limited, the movable cover can be accurately clamped on the working cavity opening and the corresponding annular track, the movable cover is fixed with the working cavity opening, the movable plate is pressed downwards, the telescopic rod is stressed to contract, the negative pressure fans on two sides of the position where the movable plate is located are exposed, the negative pressure fans suck external air where the movable plate is located and convey the air into the air bag through the conveying pipeline, the air bag is filled and expanded, the sealing plate is pushed out, the sealing plate is attached to the sealing plate cavity, and sealing closure between the movable cover and the working cavity opening is achieved.
Compared with the prior art, the invention has the following advantages:
the invention drives the clamping block to move along with the piston body by virtue of the rotation of the piston body and the connecting rod, so that the clamping block slides on the annular track, because the bulge is solid in a quarter sphere shape and the vertical surface is close to the working cavity opening to separate the piston body and the working cavity opening, and the distance between the piston body and the working cavity opening is always constant, so that the displacement of the clamping block in the sliding process on the annular track is avoided, further limiting the movement track of the movable cover, fixing the movable cover and the working cavity opening, sucking the outside air at the position of the movable plate by using a negative pressure fan and filling the air bag, expanding the air bag to push the sealing plate to the sealing plate cavity, therefore, the seal between the movable cover and the working cavity opening is closed, the skin of an operator can be prevented from being frostbitten due to the leakage of low-temperature cold air in the working cavity, and the working safety coefficient of the refrigerated centrifuge is further improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a low-speed freezing centrifuge according to the present invention.
FIG. 2 is a top view of a sealing device of a low-speed freezing centrifuge according to the present invention.
FIG. 3 is a top view of a fixing mechanism of a low-speed freezing centrifuge according to the present invention.
FIG. 4 is a cross-sectional view of a filling mechanism of a low-speed freezing centrifuge according to the present invention.
Fig. 5 is a diagram of the operation state of fig. 4.
FIG. 6 is a block structure diagram of a low-speed freezing centrifuge according to the present invention.
In the figure, a shell body-1, a sealing device-2, a movable cover-3, a table top-4, a control panel-5, a filling mechanism-a, a fixing mechanism-b, a working cavity opening-c, an expansion rod-a 1, a movable plate-a 2, a negative pressure fan-a 3, a conveying pipeline-a 4, an air bag-a 5, a sealing plate-a 6, a sealing plate cavity-a 7, an annular track-b 1, a connecting rod-b 2, a clamping block-b 3, a piston body-b 4, a protrusion-b 31, a clamping plate-b 32 and a limiting block-b 33.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.
Example 1
Referring to fig. 1-6, the invention provides a low-speed freezing centrifuge, which structurally comprises a shell 1, a sealing device 2, a movable cover 3, a table top 4 and a control panel 5, wherein the shell 1 is provided with the movable cover 3, the movable cover 3 is provided with the sealing device 2, the sealing device 2 is connected with the movable cover 3, the movable cover 3 is movably connected with the shell 1, the table top 4 is positioned at the top of the shell 1, the control panel 5 and the movable cover 3 are both arranged on the table top 4, and the table top 4 and the shell 1 are integrally structured;
the sealing device 2 is composed of a filling mechanism a, a fixing mechanism b and a working cavity opening c, wherein the filling mechanism a is matched with the fixing mechanism b, the fixing mechanism b is installed on the edge of the movable cover 3, and the fixing mechanism b is connected with the working cavity opening c.
The filling mechanism a is composed of an expansion rod a1, a movable plate a2, a negative pressure fan a3, a conveying pipeline a4, an air bag a5, a sealing plate a6 and a sealing plate cavity a7, wherein the expansion rod a1 is fixedly connected with the movable plate a2, the movable plate a2 is circularly arranged, two negative pressure fans a3 are arranged and symmetrically arranged on two sides of the cavity in which the movable plate a2 is arranged, the negative pressure fan a3 is connected with the conveying pipeline a4, the conveying pipeline a4 is communicated with the air bag a5, the air bag a5 is arranged at one end, away from the negative pressure fan a3, of the conveying pipeline a4, the air bag a5 is connected with the sealing plate a6, the sealing plate a6 is arranged in the sealing plate cavity a7, the sealing plate cavity a7 is connected with a fixing mechanism b, and after the air bag a5 expands, the sealing plate a6 can be pushed out of the sealing plate cavity a7, so that the sealing plate a6 is attached to the.
The fixing mechanism b is composed of three annular rails b1, a connecting rod b2, a fixture block b3 and a piston body b4, the number of the annular rails b1 is three, the annular rails b1 are equally distributed by taking the center of a piston body b4 as the center of a circle, the top view of the piston body b4 is circular, a fixture block b3 is arranged in the annular rail b1, the fixture block b3 is in mechanical sliding fit with the annular rail b1, the fixture block b3 is in mechanical welding with the connecting rod b2, the fixture block b3 is located at one end, far away from the piston body 686b 8, of the connecting rod b2 is fixedly connected with the piston body 4, and the annular rail b1 is installed on the inner wall of the caliber of the working cavity c in an embedded manner, so that the movable cover 3 is fixed with the working cavity c after.
The clamping block b3 is composed of a protrusion b31, a clamping plate b32 and a limiting block b33, the protrusion b31 is arranged on the clamping plate b32, the clamping plate b32 is fixedly connected with the connecting rod b2, the protrusion b31 is located at the connecting position of the clamping plate b32 and the connecting rod b2, the protrusion b31 is arranged in a quarter-sphere solid shape, the limiting block b33 is mechanically welded with the clamping plate b32, the limiting block b33 is located at the bottom of the clamping plate b32, and the protrusion b31 is arranged, so that the distance between the piston body b4 and the working cavity opening c is always kept.
The sealing plate a6 is fixedly connected with the end connected with the air bag a5 through glue, and the end, away from the air bag a5, of the sealing plate a6 is arranged in an arc shape, so that the edge of the sealing plate a6 is attached to the inner diameter of the working cavity opening c, and the tight connection of the working cavity opening c and the sealing plate a6 is realized.
Placing the substance to be cooled, centrifugally frozen in the working cavity in the shell 1, covering the movable cover 3 to ensure that the movable cover 3 is embedded with the opening c of the working cavity, and the movable cover 3 is rotated clockwise, so that the piston body b4 is rotated and the connecting rod b2 drives the fixture block b3 to move along with the piston body b4, the fixture block b3 slides on the annular track b1, the fixture block b3 slides to the zero boundary line of the annular track b1 to stop, the movable cover 3 is fixed with the working cavity opening c, the movable plate a2 is pressed downwards, the telescopic rod a1 is stressed to contract, so that the negative pressure fan a3 at the two sides of the movable plate a2 is exposed at this time, the negative pressure fan a3 sucks in the outside air at the position of the movable plate a2, and is delivered into the air bag a5 through a delivery pipe a4, so that the air bag a5 is filled and expanded, the sealing plate a6 is pushed out, so that the sealing plate a6 is attached to the sealing plate cavity a7 to seal and seal the opening c of the movable cover 3 and the working cavity.
Example 2
Referring to fig. 1, 5-6, the invention provides a low-speed freezing centrifuge, which structurally comprises a shell 1, a sealing device 2, a movable cover 3, a table top 4 and a control panel 5, wherein the shell 1 is provided with the movable cover 3, the movable cover 3 is provided with the sealing device 2, the sealing device 2 is connected with the movable cover 3, the movable cover 3 is movably connected with the shell 1, the table top 4 is positioned at the top of the shell 1, the control panel 5 and the movable cover 3 are both arranged on the table top 4, and the table top 4 and the shell 1 are integrally constructed; the sealing device 2 consists of a filling mechanism a, a fixing mechanism b and a working cavity opening c, wherein the filling mechanism a is matched with the fixing mechanism b, the fixing mechanism b is arranged on the edge of the movable cover 3, and the fixing mechanism b is connected with the working cavity opening c; the fixing mechanism b is composed of an annular track b1, a connecting rod b2, a clamping block b3 and a piston body b 4; the clamping block b3 is composed of a protrusion b31, a clamping plate b32 and a limiting block b 33; the protrusion b31 is arranged on the snap-gauge b32, the snap-gauge b32 is fixedly connected with the connecting rod b2, the protrusion b31 is positioned at the connecting position of the snap-gauge b32 and the connecting rod b2, the protrusion b31 is arranged in a quarter-sphere solid shape, the limiting block b33 is mechanically welded with the snap-gauge b32, the limiting block b33 is positioned at the bottom of the snap-gauge b32, and the protrusion b31 is arranged, so that the distance between the piston body b4 and the working cavity opening c is always kept.
When the fixture block b3 slides on the annular track b1, because the protrusion b31 is a quarter-sphere solid and the vertical surface is close to the working cavity opening c, the piston body b4 is separated from the working cavity opening c, and the distance between the piston body b4 and the working cavity opening c is constant, the displacement of the fixture block b3 in the process of sliding on the annular track b1 is avoided, the motion track of the fixture block b is further limited, and the movable cover 3 can be accurately clamped on the corresponding annular track b1 on the working cavity opening c.
The invention solves the problems that the existing low-speed freezing centrifuge freezes by setting two groups of freezing pipes to realize the simultaneous freezing of the outer side and the inner side of a test tube, the connection sealing degree between a bin cover and a bin body of a working bin is poor, so that low-temperature gas in the working bin is easy to leak, the workload of a refrigerating system is increased, and the skin of a low-temperature gas leakage worker is easy to be frozen when touching the bin cover, through the mutual combination of the parts, a piston body b4 rotates and drives a fixture block b3 to move along with the piston body b2, so that the fixture block b3 slides on an annular track b1, as a protrusion b31 is arranged in a quarter-sphere shape and is solid, and the vertical surface is close to the working cavity opening c, the piston body b4 is separated from the working cavity opening c, the distance between the piston body b4 and the working cavity opening c is constant all the time, and the displacement of the fixture block b3 in the process of sliding on the annular track b1 is avoided, the movement track of the movable cover is further limited, the movable cover 3 is fixed with the working cavity opening c, the outside air at the position of the movable plate a2 is sucked by the negative pressure fan a3 and the air bag a5 is filled, the air bag a5 expands to push the sealing plate a6 to the sealing plate cavity a7, so that the seal between the movable cover 3 and the working cavity opening c is sealed, the phenomenon that low-temperature cold air in the working cavity leaks and touches the skin of an operator to cause frostbite is avoided, and the working safety coefficient of the refrigerated centrifuge is further improved.
While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a low-speed refrigerated centrifuge, its structure includes casing (1), closing device (2), movable cover (3), mesa (4), control panel (5), its characterized in that:
the novel multifunctional table top is characterized in that a movable cover (3) is arranged on the shell (1), a sealing device (2) is arranged on the movable cover (3), the sealing device (2) is connected with the movable cover (3), the movable cover (3) is movably connected with the shell (1), the table top (4) is positioned at the top of the shell (1), the control panel (5) and the movable cover (3) are both arranged on the table top (4), and the table top (4) and the shell (1) are arranged in an integrated structure;
the sealing device (2) is composed of a filling mechanism (a), a fixing mechanism (b) and a working cavity opening (c), the filling mechanism (a) is matched with the fixing mechanism (b), the fixing mechanism (b) is installed on the edge of the movable cover (3), and the fixing mechanism (b) is connected with the working cavity opening (c).
2. The low-speed freezing centrifuge as set forth in claim 1, wherein: the filling mechanism (a) is composed of an expansion link (a 1), a movable plate (a 2), a negative pressure fan (a 3), a conveying pipeline (a 4), an air bag (a 5), a sealing plate (a 6) and a sealing plate cavity (a 7), wherein the expansion link (a 1) is fixedly connected with the movable plate (a 2), the negative pressure fan (a 3) is connected with the conveying pipeline (a 4), the conveying pipeline (a 4) is communicated with the air bag (a 5), the air bag (a 5) is connected with the sealing plate (a 6), the sealing plate (a 6) is arranged in the sealing plate cavity (a 7), and the sealing plate cavity (a 7) is connected with the fixing mechanism (b).
3. The low-speed freezing centrifuge as set forth in claim 1, wherein: the fixing mechanism (b) is composed of an annular track (b 1), a connecting rod (b 2), a clamping block (b 3) and a piston body (b 4), a clamping block (b 3) is arranged in the annular track (b 1), the clamping block (b 3) is in mechanical sliding fit with the annular track (b 1), the clamping block (b 3) is in mechanical welding with the connecting rod (b 2), and the connecting rod (b 2) is fixedly connected with the piston body (b 4).
4. A low-speed freezing centrifuge as claimed in claim 3, wherein: the clamping block (b 3) is composed of a protrusion (b 31), a clamping plate (b 32) and a limiting block (b 33), the protrusion (b 31) is arranged on the clamping plate (b 32), the clamping plate (b 32) is fixedly connected with a connecting rod (b 2), and the limiting block (b 33) is mechanically welded with the clamping plate (b 32).
5. The low-speed freezing centrifuge as set forth in claim 2, wherein: the sealing plate (a 6) is fixedly connected with one end connected with the air bag (a 5) through glue, and one end, away from the air bag (a 5), of the sealing plate (a 6) is arranged in an arc shape, so that the edge of the sealing plate (a 6) is attached to the inner diameter of the working cavity opening (c), and the tight connection between the working cavity opening (c) and the sealing plate (a 6) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286838.0A CN110899007A (en) | 2019-12-14 | 2019-12-14 | Low-speed freezing centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286838.0A CN110899007A (en) | 2019-12-14 | 2019-12-14 | Low-speed freezing centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110899007A true CN110899007A (en) | 2020-03-24 |
Family
ID=69824457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911286838.0A Withdrawn CN110899007A (en) | 2019-12-14 | 2019-12-14 | Low-speed freezing centrifuge |
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| Country | Link |
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| CN (1) | CN110899007A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2194766Y (en) * | 1994-05-20 | 1995-04-19 | 华兴航空机轮公司汽车刹车件厂 | Digital display table type micro high-speed centrifuger |
| KR20130089064A (en) * | 2012-02-01 | 2013-08-09 | 조기환 | Rotating axis array method in plate particle separator |
| CN207266411U (en) * | 2017-08-25 | 2018-04-20 | 上海鹰信智能技术有限公司 | A kind of waterproof mobile unit |
| CN207722970U (en) * | 2017-11-29 | 2018-08-14 | 乔相练 | A kind of air sac sealing centrifuge |
| CN208727757U (en) * | 2018-06-23 | 2019-04-12 | 江苏秋泓环境检测有限公司 | One kind being convenient for fixed table model high speed centrifuge |
| CN208976073U (en) * | 2019-04-15 | 2019-06-14 | 无锡芯超生物科技有限公司 | A kind of low speed refrigerated centrifuge |
| CN209271670U (en) * | 2018-11-16 | 2019-08-20 | 内蒙古圣龙大地科技有限公司 | A kind of centrifuge applied to low mercury catalyst production |
-
2019
- 2019-12-14 CN CN201911286838.0A patent/CN110899007A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2194766Y (en) * | 1994-05-20 | 1995-04-19 | 华兴航空机轮公司汽车刹车件厂 | Digital display table type micro high-speed centrifuger |
| KR20130089064A (en) * | 2012-02-01 | 2013-08-09 | 조기환 | Rotating axis array method in plate particle separator |
| CN207266411U (en) * | 2017-08-25 | 2018-04-20 | 上海鹰信智能技术有限公司 | A kind of waterproof mobile unit |
| CN207722970U (en) * | 2017-11-29 | 2018-08-14 | 乔相练 | A kind of air sac sealing centrifuge |
| CN208727757U (en) * | 2018-06-23 | 2019-04-12 | 江苏秋泓环境检测有限公司 | One kind being convenient for fixed table model high speed centrifuge |
| CN209271670U (en) * | 2018-11-16 | 2019-08-20 | 内蒙古圣龙大地科技有限公司 | A kind of centrifuge applied to low mercury catalyst production |
| CN208976073U (en) * | 2019-04-15 | 2019-06-14 | 无锡芯超生物科技有限公司 | A kind of low speed refrigerated centrifuge |
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Application publication date: 20200324 |