Portable field centrifugal machine

Abstract

The utility model provides a portable on-site centrifugal machine, and relates to the field of environment monitoring. Comprising a box body with an opening in the top and a cover body hinged to one side of the box body, and the box body is sequentially divided into a power source cavity, a centrifugal cavity and a storage cavity through two vertically-arranged partition plates; the power supply cavity is communicated with the bottom of the centrifugal cavity through a heat dissipation cavity; a control system is mounted in the heat dissipation cavity; heat dissipation holes are respectively formed in two opposite sides of the box body, and the heat dissipation holes are communicated with the heat dissipation cavity; a mobile power supply is arranged in the power supply cavity; a centrifugal machine body is arranged in the centrifugal cavity; the mobile power source and the centrifugal machine body are electrically connected with the control system. A storage box body is arranged in the storage cavity, a plurality of test tube holes are formed in the storage box body, and sample loading test tubes with covers are mounted in the test tube holes. The centrifugal machine body, the mobile power source and the storage box body are integrated, the size is small, carrying is convenient, collected samples can be centrifuged and stored, and heat dissipation performance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring, and more specifically, to a portable on-site centrifuge. Background Technology

[0002] A centrifuge is a high-speed rotating machine that uses the powerful centrifugal force generated by the high-speed rotation of the rotor around its axis to separate particles of different properties in a sample, enabling sample analysis and separation.

[0003] In environmental monitoring sample collection and analysis, centrifuges are frequently used for efficient solid-liquid separation. See the document from the China National Environmental Monitoring Centre (General Station Water Document

[2019] 603), "Notice on Issuing the 'Technical Regulations for On-site Pretreatment of Total Phosphorus in Surface Water (Trial Implementation)'," which requires environmental monitoring and analysis personnel to collect water samples at multiple sampling points in the field and perform on-site centrifugation (solid-liquid separation). The document specifies technical requirements for centrifuges: a rotation speed of 2000 rpm and a single centrifugation volume of 1000 ml. Therefore, it is evident that frontline environmental monitoring and analysis personnel have a very urgent need for convenient, efficient, and rapid on-site centrifugation.

[0004] However, existing centrifuges are generally benchtop centrifuges used in laboratories, which are not only too bulky to carry, but also require a power supply, making them inconvenient to use in the field, and also inconvenient to store the centrifuged and filtered samples. Utility Model Content

[0005] The purpose of this invention is to provide a portable on-site centrifuge that integrates the centrifuge body, mobile power supply and storage box into one unit. It is small in size, easy to carry, can centrifuge and store collected samples, and has heat dissipation performance.

[0006] The embodiments of this utility model are implemented as follows:

[0007] This application provides a portable on-site centrifuge, including a box with a top opening and a cover hinged to one side of the box. The box is divided into a power supply chamber, a centrifugation chamber and a storage chamber by two vertically arranged partitions.

[0008] The bottom of the power supply chamber and the centrifugal chamber are connected through a heat dissipation chamber, and a control system is installed in the heat dissipation chamber; heat dissipation holes are respectively opened on opposite sides of the box, and the heat dissipation holes are connected to the heat dissipation chamber;

[0009] The power supply chamber contains a mobile power supply, and the centrifugation chamber contains a centrifuge body; the mobile power supply and the centrifuge body are respectively electrically connected to the control system.

[0010] The storage cavity is equipped with a storage box, which has multiple test tube holes, and a capped sample test tube is installed in each test tube hole.

[0011] Furthermore, based on the aforementioned scheme, the centrifuge body includes a casing and a rotor, a shaft, and a drive motor disposed inside the casing. The casing is installed inside the centrifuge chamber, and the rotor is located at the top of the casing.

[0012] The rotating shaft is rotatably mounted through the housing, one end of the rotating shaft is connected to the rotating head, and the other end of the rotating shaft is connected to the drive motor located at the bottom of the housing;

[0013] The rotor is provided with multiple centrifugal grooves, which are evenly arranged around the circumference of the rotating shaft, and centrifugal tubes are installed in the centrifugal grooves.

[0014] Furthermore, based on the aforementioned scheme, a constant temperature chamber is provided at the bottom of the storage cavity, and a cooling and heating module is provided inside the constant temperature chamber. The cooling and heating module is electrically connected to the control system.

[0015] Furthermore, based on the aforementioned scheme, the test tube hole penetrates the storage box, and a limiting ring is provided at the bottom of the test tube hole. The diameter of the limiting ring gradually decreases from top to bottom and is adapted to the bottom of the sample-filling test tube.

[0016] Furthermore, based on the aforementioned scheme, a pull-out opening is provided on the side of the box body near the storage cavity, and the storage box body slides through the pull-out opening; the top of the storage box body has protrusions on opposite sides, and the height of the protrusions is greater than the exposed height of the sample tube when it is loaded into the test tube hole.

[0017] Furthermore, based on the aforementioned scheme, the top of the storage cavity is provided with an anti-sway pressure plate, and the anti-sway pressure plate has multiple shock-absorbing grooves on the side facing the storage box that correspond one-to-one with the test tube holes. The inner wall of the shock-absorbing groove is provided with a soft pad, and the depth of the shock-absorbing groove is adapted to the exposed height of the sample test tube.

[0018] Furthermore, based on the aforementioned solution, the anti-sway pressure plate is provided with a handle on the side away from the storage box.

[0019] Furthermore, based on the aforementioned solution, a receiving groove is provided on the side of the cover facing the box body, and the receiving groove is used to accommodate the handle and the centrifuge tube.

[0020] Furthermore, based on the aforementioned scheme, a flexible safety switch is provided on the top of the housing, and the flexible safety switch is electrically connected to the control system.

[0021] Furthermore, based on the aforementioned scheme, the cover and the box are connected by a lock.

[0022] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0023] This application uses partitions to sequentially divide the housing into a power supply chamber, a centrifuge chamber, and a storage chamber. The power supply chamber houses the portable power supply, the centrifuge chamber houses the centrifuge unit, and the storage chamber houses the storage container. Integrating these three components into one unit allows for power supply to the centrifuge unit in the field without the need for an external power source. It also enables the storage and centrifugation of collected samples, facilitating the collection of larger sample volumes for testing. A heat dissipation chamber is located at the bottom of both the power supply chamber and the centrifuge chamber, within which the control system is housed. This facilitates the connection between the centrifuge unit, power supply, and control system. Furthermore, heat dissipation holes are provided on opposite sides of the housing, connecting to the heat dissipation chamber. This allows for convective airflow within the heat dissipation chamber, effectively cooling the centrifuge unit, power supply, and control system during operation, thus improving heat dissipation performance and extending the equipment's lifespan. This application integrates the centrifuge unit, portable power supply, and storage container into a single unit, resulting in a compact and portable design that can centrifuge and store collected samples while providing excellent heat dissipation. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of the portable on-site centrifuge according to an embodiment of the present invention;

[0026] Figure 2 This is a side sectional view of a portable field centrifuge according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the storage box in an embodiment of the present utility model.

[0028] Icons: 1-Box body, 11-Power supply chamber, 12-Centrifuge chamber, 13-Storage chamber, 14-Heat dissipation hole, 15-Power bank, 16-Centrifuge body, 161-Centrifuge tank, 162-Shaft, 163-Flexible safety switch, 17-Storage box body, 171-Test tube hole, 172-Sample tube, 173-Protrusion, 174-Limiting ring, 18-Constant temperature chamber, 19-Refrigeration and heating module, 2-Lid body, 21-Receiving slot, 3-Partition, 4-Anti-sway pressure plate, 41-Soft pad, 42-Shock absorption groove, 43-Handle. Detailed Implementation

[0029] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0030] Please refer to Figures 1-3 The image shows a schematic diagram of the overall structure of a portable field centrifuge.

[0031] This embodiment provides a portable on-site centrifuge, including a box 1 with a top opening and a cover 2 hinged to one side of the box 1. The box 1 is divided into a power supply chamber 11, a centrifugation chamber 12 and a storage chamber 13 by two vertically arranged partitions 3.

[0032] The bottom of the power supply chamber 11 and the centrifugal chamber 12 are connected through a heat dissipation chamber, and a control system is installed inside the heat dissipation chamber; heat dissipation holes 14 are respectively opened on opposite sides of the housing 1, and the heat dissipation holes 14 are connected to the heat dissipation chamber.

[0033] The power supply chamber 11 is equipped with a mobile power supply 15, and the centrifuge chamber 12 is equipped with a centrifuge body 16; the mobile power supply 15 and the centrifuge body 16 are electrically connected to the control system respectively.

[0034] The storage chamber 13 is provided with a storage box 17, which has multiple test tube holes 171, and a sample tube 172 with a cap is installed in the test tube hole 171.

[0035] The present exemplary embodiment of a portable field centrifuge will now be further described.

[0036] In some embodiments, the aforementioned housing 1 is sequentially divided into a power supply chamber 11, a centrifuge chamber 12, and a storage chamber 13 by two vertically arranged partitions 3. The bottoms of the power supply chamber 11 and the centrifuge chamber 12 are connected by a heat dissipation chamber. Specifically, the bottoms of the power supply chamber 11 and the centrifuge chamber 12 can be configured as narrowed openings, allowing the centrifuge body 16 and the mobile power supply 15 to be stably installed while still communicating with the heat dissipation chamber. A control system is installed in the heat dissipation chamber to control the operation of the centrifuge body 16. Heat dissipation holes 14 are respectively provided on opposite sides of the aforementioned housing 1, and the heat dissipation holes 14 communicate with the heat dissipation chamber. The heat dissipation holes 14 are preferably located on the front and rear side walls of the housing 1. Through the heat dissipation holes 14 on opposite sides, convective airflow can be formed in the heat dissipation chamber to remove heat from the internal equipment and improve the heat dissipation performance during centrifugal operation.

[0037] The aforementioned power supply chamber 11 is equipped with a mobile power supply 15, and the centrifuge chamber 12 is equipped with a centrifuge body 16. The mobile power supply 15 and the centrifuge body 16 are electrically connected to the control system. The mobile power supply 15 is used to supply power for centrifugation and can be controlled by the control system, such as adjusting the centrifuge speed.

[0038] The aforementioned storage chamber 13 is provided with a storage box 17, which has multiple test tube holes 171. A covered sample loading test tube 172 is installed in the test tube hole 171. The sample loading test tube 172 is used to load the collected sample or the sample after centrifugation and filtration. Storing it to a certain amount before sending it for testing can improve sampling efficiency. Integrating the storage box 17 with the centrifuge body 16 can improve the functionality of the centrifuge.

[0039] In a preferred embodiment, the centrifuge body 16 includes a casing and a rotor, a shaft 162, and a drive motor disposed inside the casing. The casing is installed within the centrifuge chamber 12, and the rotor is located at the top of the casing. The shaft 162 rotatably passes through the casing, with one end connected to the rotor and the other end connected to the drive motor located at the bottom of the casing. The drive motor drives the shaft 162 to rotate, which in turn drives the rotor at the top to rotate. The rotor has multiple centrifuge tanks 161, which are evenly arranged around the circumference of the shaft 162. Centrifuge tubes are installed in the centrifuge tanks 161. The rotation of the rotor drives the multiple centrifuge tubes installed in the centrifuge tanks 161 to rotate synchronously, realizing the centrifugation operation. The centrifuge tubes are movably inserted into the centrifuge tanks 161 for easy removal, cleaning, and subsequent filtration. The drive motor is located at the bottom of the casing for easy electrical connection with the control system to control the start / stop and speed of the drive motor.

[0040] In a preferred embodiment, a constant temperature chamber 18 is provided at the bottom of the storage cavity 13, and a cooling and heating module 19 is provided inside the constant temperature chamber 18. The cooling and heating module 19 is electrically connected to the control system. By using the cooling and heating module 19 located at the bottom of the storage cavity 13, the stored sample can be kept at a constant temperature as needed, ensuring that the sample is not affected by the ambient temperature. The cooling and heating module 19 is electrically connected to the control system, and its temperature change can be controlled by the control system.

[0041] In a preferred embodiment, the test tube hole 171 penetrates the storage box 17, allowing the cooling / heating module 19 at the bottom to cool or heat the test tube directly, thus preventing the storage box 17 from being sealed at the bottom and affecting the temperature control effect. A limiting ring 174 is provided at the bottom of the test tube hole 171. The diameter of the limiting ring 174 gradually decreases from top to bottom and is adapted to the bottom of the sample test tube 172, ensuring that the sample test tube 172 will not fall downwards after being inserted into the test tube hole 171, thereby improving loading stability.

[0042] In a preferred embodiment, the box 1 is provided with a pull-out opening on the side near the storage cavity 13, and the storage box 17 is slidably inserted through the pull-out opening, which facilitates the disassembly and assembly of the storage box 17 and the storage of samples; the top of the storage box 17 is provided with protrusions 173 on opposite sides, and the height of the protrusions 173 is greater than the exposed height of the sample tube 172 when it is loaded into the test tube hole 171, so that the sample tube 172 will not interfere with the box 1 when it is pulled out, and the storage box 17 can be pulled out or pushed in smoothly.

[0043] In a preferred embodiment, the storage cavity 13 is provided with an anti-sway plate 4 at the top. The anti-sway plate 4 has multiple shock-absorbing grooves 42 on the side facing the storage box 17, each corresponding to a test tube hole 171. The inner wall of each shock-absorbing groove 42 is lined with a soft pad 41, and the depth of the groove is adapted to the exposed height of the sample tube 172. Through this structural design, during sample loading, the anti-sway plate 4 is first removed, and the sample is loaded. After the storage box 17 is pushed into the housing 1, the anti-sway plate 4 is placed back into the housing 1, positioned on top of the storage box 17. This ensures that each shock-absorbing groove 42 corresponds to each sample tube 172, fixing its top. The bottom of the sample tube 172 is fixed by a limiting ring 174, thus stably loading the sample tube 172. This ensures the stability of the sample tube 172 during field transportation, preventing violent shaking and collisions.

[0044] As a preferred embodiment, the anti-sway pressure plate 4 is provided with a handle 43 on the side away from the storage box 17, which facilitates the removal or installation of the anti-sway pressure plate 4.

[0045] As a preferred embodiment, the cover 2 is provided with a receiving groove 21 on the side facing the box 1. The receiving groove 21 is used to receive the handle 43 and the centrifuge tube. Since the handle 43 and the centrifuge tube will protrude slightly from the top surface of the box 1, the receiving groove 21 is provided on the cover 2 to avoid interference.

[0046] In a preferred embodiment, the top of the casing is provided with a flexible safety switch 163. The flexible safety switch 163 is electrically connected to the control system. When the cover 2 is closed on the top of the housing 1, the cover 2 presses down on the flexible safety switch 163 and sends a start signal to the control system. It can be linked with the start switch on the housing 1 to jointly control the start of the drive motor and the operation of the centrifuge body 16. If the cover 2 is opened, the centrifuge body 16 stops running, thus improving the safety of the equipment.

[0047] As a preferred embodiment, the cover 2 and the box 1 are connected by a lock, which can be a mechanical lock or an electronic lock, to lock the cover 2 and the box 1 together, making it difficult to open and easy to carry and transport.

[0048] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0049] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. A portable field centrifuge, characterized by, The box body includes a top opening, and a cover body hinged to one side of the box body, the box body is sequentially separated into a power cavity, a centrifugal cavity and a storage cavity by two vertically arranged partitions; The bottom of the power cavity and the centrifugal cavity is communicated through a heat dissipation cavity, and a control system is installed in the heat dissipation cavity; opposite sides of the box body are respectively provided with heat dissipation holes communicated with the heat dissipation cavity; A mobile power supply is arranged in the power cavity, and a centrifugal machine body is arranged in the centrifugal cavity; the mobile power supply and the centrifugal machine body are respectively electrically connected with the control system; A storage box body is arranged in the storage cavity, the storage box body is provided with a plurality of test tube holes, and a sample loading test tube with a cover is installed in each test tube hole.

2. The portable field centrifuge of claim 1, wherein, The centrifugal machine body includes a casing, a rotating head, a rotating shaft and a driving motor arranged in the casing, the casing is arranged in the centrifugal cavity, and the rotating head is arranged at the top of the casing; The rotating shaft is rotatably arranged in the casing, one end of the rotating shaft is connected with the rotating head, and the other end of the rotating shaft is connected with the driving motor arranged at the bottom of the casing; The rotating head is provided with a plurality of centrifugal grooves, and the plurality of centrifugal grooves are uniformly arranged around the rotating shaft; a centrifugal tube is arranged in each centrifugal groove.

3. The portable field centrifuge of claim 1, wherein, A constant temperature cavity is arranged at the bottom of the storage cavity, a refrigeration and heating module is arranged in the constant temperature cavity, and the refrigeration and heating module is electrically connected with the control system.

4. The portable field centrifuge of claim 3, wherein, The test tube hole penetrates through the storage box body, a limiting ring is arranged at the bottom of the test tube hole, and the diameter of the limiting ring is gradually reduced from top to bottom and is matched with the bottom of the sample loading test tube.

5. The portable field centrifuge of claim 1, wherein, A pulling opening is arranged on one side of the box body close to the storage cavity, the storage box body is slidably arranged in the pulling opening; protrusions are arranged on the top of the opposite sides of the storage box body, and the height of the protrusions is greater than the exposed height of the sample loading test tube loaded in the test tube hole.

6. The portable field centrifuge of claim 2, wherein, A anti-shaking pressing plate is arranged at the top of the storage cavity, a plurality of damping grooves corresponding to the test tube holes are arranged on the side of the anti-shaking pressing plate facing the storage box body, a soft pad is arranged on the inner wall of the damping groove, and the depth of the damping groove is matched with the exposed height of the sample loading test tube.

7. The portable field centrifuge of claim 6, wherein, A handle is arranged on the side of the anti-shaking pressing plate away from the storage box body.

8. The portable field centrifuge of claim 7, wherein, A containing groove is arranged on the side of the cover body facing the box body, and the containing groove is used for containing the handle and the centrifugal tube.

9. The portable field centrifuge of claim 2, wherein, An elastic safety switch is arranged at the top of the casing, and the elastic safety switch is electrically connected with the control system.

10. The portable field centrifuge of claim 1, wherein, The cover body and the box body are connected through a lock.

Images