Supernatant centrifugal equipment

Abstract

The utility model relates to the technical field of centrifugal machines, in particular to supernate centrifugal equipment which comprises a machine body. Two side plates are fixed to the top of the rotating body, clamping grooves are formed in the side plates, a plurality of tube grooves used for containing test tubes are further formed in the top of the rotating body, and the bottom ends of the tube grooves are in an opening shape; a liftable movable seat is mounted at the inner bottom of the rotating body, and a plurality of ejector rods are fixed to the top of the movable seat; through the arrangement of a movable seat, when the movable seat moves upwards under the action of a first spring, the movable seat drives a plurality of ejector rods to move upwards, and the ejector rods jack up test tubes in a tube groove, so that a worker can conveniently take out the test tubes, and the design improves the convenience of operation; when supernate in the test tube is centrifugally extracted, the ejector rod is located below the test tube, and under the limitation of the connecting seat and the side plate, the ejector rod is limited and cannot jack the test tube upwards, so that the supernate in the test tube can be centrifugally extracted.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a supernatant centrifugal device. Background Art

[0002] Supernatant refers to the transparent or clear liquid part obtained after processing or separation in different application scenarios; currently, supernatant extraction is mostly carried out using a centrifuge; centrifugal supernatant is widely used in biology, medicine, chemistry and other fields, such as in experiments such as crude DNA extraction, protein purification, and cell separation.

[0003] The utility model patent with the authorization announcement number CN217450560U discloses a centrifuge rotor and a centrifuge, which includes a rotor body, a plurality of accommodating cavities are provided in the rotor body, the plurality of accommodating cavities are opened on the top surface of the rotor body and are arranged at intervals from each other, and the accommodating cavities are used to accommodate centrifuge tubes; a stopper, the stopper is connected to the rotor body, and the stopper is used to limit the movement of the centrifuge tube. By arranging the stopper on the centrifuge rotor, the movement of the centrifuge tube or pipette in the accommodating cavity can be limited, so that the accommodating cavity of the centrifuge rotor can be suitable for centrifuge tubes or pipettes of various specifications, thereby increasing the adaptability of the centrifuge.

[0004] Although the centrifuge rotor and the centrifuge increase the adaptability of the centrifuge, the device has the following problems in actual use. Specifically, when multiple test tubes are placed in the accommodating chamber of the centrifuge, since the length of the end portion of the test tube outside the accommodating chamber is relatively short, this design makes the operation quite inconvenient when the test tube needs to be taken out. In view of this, we propose a supernatant centrifugation device. Utility Model Content

[0005] The utility model aims to provide a supernatant centrifugal device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A supernatant centrifuge device comprises a body;

[0008] A motor is installed at the bottom of the body, a rotating body is rotatably installed at the top opening of the body, a connecting shaft is coaxially fixed at the bottom center of the rotating body, two side plates are fixed on the top of the rotating body, each of the side plates is provided with a card slot, and a plurality of tube slots for placing test tubes are also provided on the top of the rotating body, and the bottom ends of the tube slots are open;

[0009] A movable seat that can be raised and lowered is installed at the inner bottom of the rotating body, and a plurality of push rods are fixed on the top of the movable seat, and the push rods are inserted into the bottom openings of the corresponding pipe grooves; two guide rods are also penetrated at the movable seat, and the bottom ends of the guide rods are fixed to the inner bottom of the rotating body, and the guide rods are sleeved with first springs, and the top ends of the first springs are pressed against the movable seat;

[0010] A pressure rod is coaxially fixed at the center of the top of the movable seat, the top of the pressure rod passes through the top of the rotating body, a connecting seat is fixed at the top of the pressure rod, and the two ends of the connecting seat are detachably connected to the side plates on both sides.

[0011] Preferably, the connecting seat is provided with two symmetrical sliding grooves, two connecting rods are fixed in the sliding grooves, the connecting rods are sleeved with a second spring, a slider is also slidably installed in the sliding groove, the slider is provided with two sliding holes slidably connected to the connecting rods, and the second spring presses the slider tightly, and two end faces of the two sliders that are away from each other are fixed with clamps, which pass through the connecting seat and are engaged with the corresponding clamping grooves.

[0012] Preferably, two symmetrical strip grooves are provided on the top of the connecting seat, and levers are slidably installed in the strip grooves, and the levers are fixedly connected to the slider.

[0013] Preferably, the slider and the chuck are an integrally formed structure, and both the slider and the chuck are made of stainless steel.

[0014] Preferably, supporting feet are installed at the four corners of the bottom of the body, and the supporting feet are fixedly connected to the body by bolts.

[0015] Preferably, the cross-sectional shape of the tube groove is circular, and the number of the tube grooves is 5-7.

[0016] Preferably, a limiting block is coaxially fixed at the top end of the guide rod, and the diameter of the limiting block is larger than the diameter of the guide rod.

[0017] Preferably, the push rod is a product made of plastic material, and the push rod is fixedly connected to the movable seat by bolts.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. Through the movable seat, when the movable seat moves upward under the action of the first spring, the movable seat drives multiple push rods to move upward, and the push rods push up the test tubes in the tube slot, so that the test tubes protrude above the tube slot, thereby facilitating the staff to take out the test tubes. This design improves the convenience of operation;

[0020] 2. Through the provided connection seat, clamp head and clamping groove and other structures, when the supernatant in the test tube is centrifuged and extracted, the push rod is located below the test tube. Under the restriction of the connection seat and the side plate, the push rod is restricted and cannot lift the test tube upward, thereby facilitating the centrifugal extraction of the supernatant in the test tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0023] Figure 3 It is a structural cross-sectional view of the rotating body in the utility model;

[0024] Figure 4 It is a structural schematic diagram of the rotating body in the utility model;

[0025] Figure 5 It is a partial structural schematic diagram of the utility model;

[0026] Figure 6 It is a structural sectional view of the connecting seat in the utility model.

[0027] In the figure:

[0028] 1. Machine body; 10. Support feet; 11. Motor; 12. Rotating body; 121. Connecting shaft; 122. Pipe groove; 123. Side plate; 1231. Clamping groove; 13. Movable seat; 131. Push rod; 14. Guide rod; 15. First spring; 16. Press rod; 17. Connecting seat; 171. Slide groove; 172. Connecting rod; 173. Second spring; 174. Strip groove; 18. Sliding block; 181. Clamping head; 182. Sliding hole; 183. Push rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] This embodiment provides a technical solution:

[0031] See also Figure 1-Figure 6A supernatant centrifuge device includes a body 1. A motor 11 is installed at the bottom of the body 1, a rotating body 12 is rotatably installed at the top opening of the body 1, a connecting shaft 121 is coaxially fixed at the bottom center of the rotating body 12, two side plates 123 are fixed on the top of the rotating body 12, and each of the side plates 123 is provided with a slot 1231. A plurality of tube slots 122 for placing test tubes are also provided on the top of the rotating body 12, and the bottom ends of the tube slots 122 are open; a movable seat 13 that can be raised and lowered is installed at the inner bottom of the rotating body 12, and a plurality of ejector rods 131 are fixed on the top of the movable seat 13 , the push rod 131 is inserted into the bottom opening of the corresponding tube groove 122; two guide rods 14 are also penetrated at the movable seat 13, the bottom ends of the guide rods 14 are fixed to the inner bottom of the rotating body 12, and the first springs 15 are sleeved on the guide rods 14, and the top ends of the first springs 15 are pressed against the movable seat 13; a pressure rod 16 is coaxially fixed at the center of the top end of the movable seat 13, and the top end of the pressure rod 16 passes through the top end of the rotating body 12, and a connecting seat 17 is fixed at the top end of the pressure rod 16, and the two ends of the connecting seat 17 are detachably connected to the side plates 123 on both sides. Two symmetrical slide grooves 171 are provided at the connecting seat 17, and two connecting rods 172 are fixed in the slide grooves 171. The connecting rods 172 are sleeved with second springs 173. A slider 18 is also slidably installed in the slide groove 171. The slider 18 has two slide holes 182 slidably connected to the connecting rods 172, and the second spring 173 presses against the slider 18. Two end surfaces of the two sliders 18 that are away from each other are fixed with clamps 181, which pass through the connecting seat 17 and are clamped and matched with the corresponding clamping grooves 1231.

[0032] In this embodiment, two symmetrical strip grooves 174 are formed on the top of the connection seat 17, and a lever 183 is slidably installed in each of the strip grooves 174, and the lever 183 is fixedly connected to the slider 18. The lever 183 facilitates the slider 18 to move and adjust the position of the slider 18, thereby facilitating the release of the restriction between the clamping head 181 and the clamping groove 1231.

[0033] In this embodiment, the slider 18 and the clamp 181 are integrally formed, and both the slider 18 and the clamp 181 are made of stainless steel. The integrally formed slider 18 and the clamp 181 have better structural strength, ensuring the connection reliability of the slider 18 and the clamp 181, and the slider 18 and the clamp 181 made of stainless steel have the advantages of corrosion resistance and high strength.

[0034] In this embodiment, legs 10 are installed at the four corners of the bottom of the machine body 1, and the legs 10 are fixedly connected to the machine body 1 by bolts. The setting of the legs 10 plays a stable supporting and fixing role for the machine body 1, ensuring the stability of the machine body 1.

[0035] In this embodiment, the cross-sectional shape of the tube groove 122 is circular, and the number of the tube grooves 122 is 5-7. The circular arrangement is convenient for placing test tubes, and the preferred number of the tube grooves 122 is 6, which is conducive to centrifugal extraction of mixed solutions in multiple test tubes at the same time.

[0036] In this embodiment, a limit block 141 is coaxially fixed at the top of the guide rod 14, and the diameter of the limit block 141 is larger than the diameter of the guide rod 14. The setting of the limit block 141 can prevent the movable seat 13 from detaching from the guide rod 14, thereby ensuring the stability of the movable seat 13.

[0037] In this embodiment, the push rod 131 is made of plastic material, and the push rod 131 is fixedly connected to the movable seat 13 by bolts. The push rod 131 made of plastic material is not easy to cause damage to the test tube, and the bolt fixing method ensures the reliability of the connection between the push rod 131 and the movable seat 13.

[0038] It can be understood that the body 1 in this embodiment is one of the conventional structures of the centrifuge, and when the body 1 is in use, a flip cover is also required to be provided on the top of the body 1, and the safety during the centrifugation process can be ensured by the flip cover; this is an existing conventional technology and will not be described in detail here.

[0039] It should be added that when the test tube is inserted into the tube groove 122, the bottom end of the test tube is pressed against the top end of the push rod 131. When the test tube needs to be taken out, the push rod 131 can push the test tube upward, thereby improving the convenience of taking out the test tube.

[0040] It is worth noting that the motor 11 involved in this embodiment is an existing conventional technology and will not be described in detail here.

[0041] When in use, the user first turns on the power of the motor 11, and the motor 11 starts to work. The output shaft of the motor 11 rotates to drive the rotating body 12 to rotate. As the rotating body 12 rotates, the mixed liquid in the test tube in the tube groove 122 is separated under the action of centrifugal force.

[0042] When the test tube needs to be taken out after centrifugation, the user first opens the flip cover, and then pushes the lever 183 from both sides to the middle, the lever 183 drives the slider 18 to slide along the slide groove 171, the slide hole 182 slides along the connecting rod 172, the second spring 173 is compressed by the slider 18, and the slider 18 drives the clamping head 181 to disengage from the clamping groove 1231 at the same time. Under the elastic action of the first spring 15, the movable seat 13 moves upward and drives multiple push rods 131 to move upward, and the push rods 131 drive the test tubes to move upward, and the top ends of the test tubes protrude above the tube groove 122. Finally, the user can take out multiple test tubes.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A supernatant centrifuge device, comprising a body (1), characterized in that: A motor (11) is installed at the bottom of the body (1), a rotating body (12) is rotatably installed at the top opening of the body (1), a connecting shaft (121) is coaxially fixed at the bottom center of the rotating body (12), two side plates (123) are fixed at the top of the rotating body (12), and each of the side plates (123) is provided with a slot (1231), and a plurality of tube slots (122) for placing test tubes are also provided at the top of the rotating body (12), and the bottom ends of the tube slots (122) are open; A movable seat (13) that can be raised and lowered is installed at the inner bottom of the rotating body (12), and a plurality of push rods (131) are fixed on the top of the movable seat (13), and the push rods (131) are inserted into the bottom openings of the corresponding pipe grooves (122); two guide rods (14) are also passed through the movable seat (13), and the bottom ends of the guide rods (14) are fixed to the inner bottom of the rotating body (12), and the guide rods (14) are sleeved with first springs (15), and the top ends of the first springs (15) are pressed against the movable seat (13); A pressure rod (16) is coaxially fixed at the center of the top end of the movable seat (13), the top end of the pressure rod (16) passes through the top end of the rotating body (12), a connecting seat (17) is fixed at the top end of the pressure rod (16), and both ends of the connecting seat (17) are detachably connected to the side plates (123) on both sides.

2. The supernatant centrifuge device according to claim 1, characterized in that: The connecting seat (17) is provided with two symmetrical sliding grooves (171), two connecting rods (172) are fixed in the sliding grooves (171), and the connecting rods (172) are sleeved with second springs (173). A slider (18) is also slidably installed in the sliding groove (171), and the slider (18) is provided with two sliding holes (182) slidably connected to the connecting rods (172), and the second spring (173) is pressed against the slider (18). Two end surfaces of the two sliders (18) that are separated from each other are fixed with clamping heads (181), and the clamping heads (181) pass through the connecting seat (17) and are clamped and matched with the corresponding clamping grooves (1231).

3. The supernatant centrifuge device according to claim 1, characterized in that: The top of the connection seat (17) is provided with two symmetrical strip grooves (174), and a lever (183) is slidably mounted in each of the strip grooves (174), and the lever (183) is fixedly connected to the slider (18).

4. The supernatant centrifuge device according to claim 2, characterized in that: The slider (18) and the clamp (181) are an integrally formed structure, and both the slider (18) and the clamp (181) are made of stainless steel.

5. The supernatant centrifuge device according to claim 1, characterized in that: Support feet (10) are installed at the four corners of the bottom of the machine body (1), and the support feet (10) are fixedly connected to the machine body (1) by bolts.

6. The supernatant centrifuge device according to claim 1, characterized in that: The cross-sectional shape of the tube groove (122) is circular, and the number of the tube grooves (122) is 5-7.

7. The supernatant centrifuge device according to claim 1, characterized in that: A limiting block (141) is coaxially fixed at the top end of the guide rod (14), and the diameter of the limiting block (141) is greater than the diameter of the guide rod (14).

8. The supernatant centrifuge device according to claim 1, characterized in that: The push rod (131) is a product made of plastic material, and the push rod (131) is fixedly connected to the movable seat (13) via bolts.

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