CN216678642U

CN216678642U - High-efficient desk-top high-speed centrifuge

Info

Publication number: CN216678642U
Application number: CN202220129541.4U
Authority: CN
Inventors: 罗双桃; 肖道安; 李帅
Original assignee: Guangzhou Jidi Instrument Co ltd
Current assignee: Guangzhou Jidi Instrument Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-06-07
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a high-efficiency table type high-speed centrifuge, which comprises a shell and a sample fastening mechanism, wherein the shell is provided with a sample inlet and a sample outlet; a shell: an opening on the upper surface of the centrifugal disc is hinged with a machine cover through a hinge, a frame plate is arranged on the upper side in the casing, a centrifugal disc is rotatably connected in a round opening in the middle of the frame plate through a bearing, sample slots which are uniformly distributed are arranged on the upper surface of the centrifugal disc, a motor is arranged in the center of the bottom surface in the casing, and an output shaft of the motor is fixedly connected with the bottom surface of the centrifugal disc; sample fastening device: the centrifugal disc is arranged in the centrifugal disc and communicated with the adjacent sample slots; this high-efficient desk-top high speed centrifuge can realize the automatic fastening to the test tube, need not personnel manually operation, promotes centrifugal work's efficiency through saving operating time, can also make the inside heat of producing because of the motor operation of casing discharge rapidly, ensures that the motor can long-time operation to avoid centrifugal work to break because of the overheated shut down of motor.

Description

High-efficient desk-top high-speed centrifuge

Technical Field

The utility model relates to the technical field of laboratory equipment, in particular to a high-efficiency table type high-speed centrifuge.

Background

The desk-top high-speed centrifuge is a centrifuge for routine laboratory, and it uses the strong centrifugal force produced by high-speed rotation of rotor to separate the components from liquid and solid particles or liquid mixture, and is suitable for quick separation and synthesis of trace sample.

The desk type high-speed centrifuge is an important instrument used in scientific research and production departments of medicine, pharmacology, biology, chemistry, agricultural science, food environmental protection and the like, and is widely used for various medicines and biological products, such as blood, cells, proteins, enzymes, nucleic acids, viruses, hormones and the like.

Present desk-top high speed centrifuge in order to guarantee the stability of sample test tube when using, often need adopt parts such as screw thread pressure sleeve or spacing fixture block manual realization to the fastening of sample test tube, and the preparation work before the centrifugation is comparatively loaded down with trivial details, very influences centrifugal work's efficiency, for this reason, we provide a high-efficient desk-top high speed centrifuge.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the existing defects, and provide the high-efficiency table-type high-speed centrifuge, which can automatically fasten test tubes without manual operation of personnel, improve the efficiency of centrifugal work by saving operation time, quickly discharge heat generated by the operation of a motor in a casing, ensure that the motor can run for a long time, prevent the interruption of the centrifugal work due to overheating and breakdown of the motor, and effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-efficiency table-type high-speed centrifuge comprises a shell and a sample fastening mechanism;

A shell: an opening on the upper surface of the centrifugal disc is hinged with a machine cover through a hinge, a frame plate is arranged on the upper side in the casing, a centrifugal disc is rotatably connected in a round opening in the middle of the frame plate through a bearing, sample slots which are uniformly distributed are arranged on the upper surface of the centrifugal disc, a motor is arranged in the center of the bottom surface in the casing, and an output shaft of the motor is fixedly connected with the bottom surface of the centrifugal disc;

sample fastening mechanism: the centrifugal disc is arranged in the centrifugal disc and communicated with the adjacent sample slots;

wherein: the utility model discloses a test tube, including casing, control switch, motor, control switch's upper surface front end is equipped with control switch, and control switch's input electricity is connected external power source, and the output of control switch is connected to the input electricity of motor, can realize the automatic fastening to the test tube, need not personnel manual operation, promotes centrifugal work's efficiency through saving operating time, can also make the inside heat that produces of casing rapidly discharge because of the motor operation, ensures that the motor can run for a long time to avoid centrifugal work to suspend because of motor overheat downtime.

Further, sample fastening device is including fastening chamber, stick up pole and the tight piece of flexible clamp, two liang of a set of evenly distributed in the inside of centrifugal tray in fastening chamber, the centre gripping mouth of fastening chamber upper end all is linked together with adjacent sample slot, and the inside in fastening chamber all is connected with through the round pin hub rotation and sticks up the pole, and two relative medial surface upper ends of sticking up the pole on the same group all are equipped with the tight piece of flexible clamp, can realize the automatic fastening to the test tube, need not personnel manual operation, promote centrifugal work's efficiency through saving operating time.

Further, sample fastening device still includes slide, spring, axial sliding opening and kicking block, slide difference sliding connection is in the inside of sample slot, is equipped with the spring between the bottom surface of slide and the inside bottom surface of sample slot, and the inner arc wall lower extreme of sample slot all is equipped with two axial sliding openings of symmetry each other, and axial sliding opening is linked together with adjacent fastening chamber, and the extrados symmetry of slide is equipped with two kicking blocks, and the kicking block is located inside and the inside that extends to the fastening chamber of adjacent axial sliding opening, can make the stick-up pole take place to incline and realize the fastening to the test tube.

Furthermore, the fastening cavity is parallel to the central axis of the adjacent sample slot, and the included angle between the upper rod body and the lower rod body of the tilting rod is an obtuse angle, so that the normal operation of fastening is ensured.

Furthermore, evenly distributed heat dissipation fins are all seted up to the side bottom around the casing, can make the inside heat of casing discharge to the external environment in.

Further, the inside bottom surface front side of casing is equipped with the U-shaped seat, and the inside of U-shaped seat is connected with circular frame fan through the bearing rotation, and the fixed cover of extrados of circular frame fan is equipped with the ring gear, and the bottom surface edge of centrifugal disc is equipped with the big footpath fluted disc, and the ring gear is connected with the meshing of big footpath fluted disc, can promote the inside air flow velocity of casing for the inside heat of casing can discharge rapidly.

Furthermore, the bottom surface four corners symmetry of casing is equipped with elasticity shock attenuation stabilizer blade, can provide the elastic support effect for the casing at the centrifugation in-process, ensures operational environment's stability.

Compared with the prior art, the utility model has the beneficial effects that: this high-efficient desk-top high speed centrifuge has following benefit:

1. after the cover is opened, a test tube which is filled with a sample to be centrifuged is inserted into the sample slot, the test tube enters the inside of the slide seat, then the cover is closed, the motor operates to drive the centrifugal disc to rotate at a high speed to perform centrifugal work, at the moment, the test tube and the slide seat overcome the elastic force of the spring under the action of centrifugal force to slide towards the bottom of the sample slot, the ejector block slides downwards along the axial sliding opening along with the slide seat, along with the movement of the ejector block, the contact point position of the tilting rod and the ejector block gradually moves downwards, so that the upper end of the tilting rod is close to the central axis of the sample slot, the flexible clamping block penetrates through the clamping port at the upper end of the fastening cavity to clamp the test tube, the automatic fastening of the test tube is realized, the stability of the test tube during the centrifugal work is ensured, personnel are not required to fasten the test tube manually, and the efficiency of the centrifugal work is improved by saving the operation time, after the centrifugation is accomplished, motor stall, the slide can drive test tube and kicking block together to shift up by the elasticity of spring, and the stick up the pole this moment and remove the locking to the test tube because the top that no longer receives the kicking block pushes away spacingly to the personnel take out the test tube, elasticity shock attenuation stabilizer blade can provide the elastic support effect at centrifugal in-process for the casing, ensures operational environment's stability.

2. In the centrifugation process, by the meshing connection relation influence of ring gear and major diameter fluted disc, the major diameter fluted disc can drive ring gear and circular framed fan together rotatory when following the rotation of centrifugal disc to promote the inside air flow velocity of casing, make the inside heat that produces because of the motor operation of casing can discharge rapidly through the radiating fin mouth, ensure that the motor can long-time operation, in order to avoid centrifugal work to break because of the overheated shut down of motor.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the inner cross-section of the present invention;

FIG. 3 is a schematic view of the left side view in plan view of the present invention;

FIG. 4 is an enlarged schematic view of the structure at A of the present invention.

In the figure: the device comprises a machine shell 1, a machine cover 2, a frame plate 3, a centrifugal disc 4, a sample slot 5, a motor 6, a control switch 7, a sample fastening mechanism 8, a fastening cavity 81, a tilting rod 82, a flexible clamping block 83, a sliding seat 84, a spring 85, an axial sliding opening 86, a top block 87, a heat dissipation fin opening 9, a U-shaped seat 10, a circular fan with a frame 11, a 12 toothed ring, a 13 large-diameter toothed disc and a 14 elastic shock absorption supporting leg.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present embodiment provides a technical solution: a high-efficiency table type high-speed centrifuge comprises a casing 1 and a sample fastening mechanism 8;

a housing 1: an opening on the upper surface of the centrifugal plate is hinged with a cover 2 through a hinge, a frame plate 3 is arranged on the upper side in the casing 1, a centrifugal disc 4 is rotatably connected in a round opening in the middle of the frame plate 3 through a bearing, sample slots 5 which are uniformly distributed are formed in the upper surface of the centrifugal disc 4, a motor 6 is arranged in the center of the bottom surface in the casing 1, an output shaft of the motor 6 is fixedly connected with the bottom surface of the centrifugal disc 4, a test tube which is filled with a sample to be centrifuged is inserted into the sample slots 5 after the cover 2 is opened, then the cover 2 is closed, and the motor 6 rotates to drive the centrifugal disc 4 to rotate at a high speed to perform centrifugal work through the regulation and control of a control switch 7;

sample fastening mechanism 8: the sample fastening mechanism 8 comprises fastening cavities 81, warped rods 82 and flexible clamping blocks 83, the fastening cavities 81 are distributed in the centrifugal disc 4 in a pairwise mode and are communicated with adjacent sample slots 5, clamping ports at the upper end of the fastening cavities 81 are communicated with the adjacent sample slots 5, the warped rods 82 are rotatably connected inside the fastening cavities 81 through pin shafts, the flexible clamping blocks 83 are arranged at the upper ends of the opposite inner side faces of the warped rods 82 in the same group, the sample fastening mechanism 8 further comprises a sliding seat 84, springs 85, axial sliding ports 86 and ejector blocks 87, the sliding seat 84 is respectively connected inside the sample slots 5 in a sliding mode, the springs 85 are arranged between the bottom face of the sliding seat 84 and the bottom face of the inside of the sample slots 5, the lower ends of the inner arc walls of the sample slots 5 are respectively provided with the two axial sliding ports 86 which are symmetrical to each other, the axial sliding ports 86 are communicated with the adjacent fastening cavities 81, and the outer arc faces of the sliding seat 84 are symmetrically provided with the two ejector blocks 87, the jacking block 87 is positioned inside the adjacent axial sliding port 86 and extends to the inside of the fastening cavity 81, the fastening cavity 81 is parallel to the central axis of the adjacent sample slot 5, the included angle between the upper and lower rod bodies of the tilting rod 82 is an obtuse angle, in the centrifugal process, the test tube and the sliding seat 84 can overcome the elastic force of the spring 85 and slide towards the bottom of the sample slot 5 under the action of centrifugal force, the jacking block 87 can slide downwards along the axial sliding port 86 along with the sliding seat 84, along with the movement of the jacking block 87, the contact point of the tilting rod 82 and the jacking block 87 can gradually move downwards, so that the upper end of the tilting rod 82 approaches towards the central axis of the sample slot 5, the flexible clamping block 83 penetrates through the clamping port at the upper end of the fastening cavity 81 to clamp the test tube, the automatic fastening of the test tube is realized, the stability of the test tube in the centrifugal work is ensured, personnel are not required to fasten the test tube manually, and the centrifugal work efficiency is improved by saving the operation time, after centrifugation is finished, the motor 6 stops running, the test tube and the top block 87 are driven to move upwards together by the sliding seat 84 under the elastic force of the spring 85, and the tilting rod 82 is not pushed by the top block 87 any more to limit, so that the test tube is unlocked, and a person can take out the test tube;

Wherein: the front end of the upper surface of the machine shell 1 is provided with a control switch 7, the input end of the control switch 7 is electrically connected with an external power supply, and the input end of the motor 6 is electrically connected with the output end of the control switch 7.

Wherein: evenly distributed's heat dissipation fin mouth 9 has all been seted up to the front and back side bottom of casing 1, the inside bottom front side of casing 1 is equipped with U-shaped seat 10, the inside of U-shaped seat 10 is connected with circular framed fan 11 through the bearing rotation, the outer cambered surface of circular framed fan 11 is fixed to be equipped with ring gear 12, the bottom surface edge of centrifugal disc 4 is equipped with big footpath fluted disc 13, ring gear 12 is connected with big footpath fluted disc 13 meshing, influenced by the meshing relation of ring gear 12 and big footpath fluted disc 13, big footpath fluted disc 13 can drive ring gear 12 and circular framed fan 11 together rotatory when following centrifugal disc 4 is rotatory, thereby promote the inside air flow velocity of casing 1, make the inside heat that produces because of motor 6 operates of can discharge rapidly through heat dissipation fin mouth 9, ensure that motor 6 can long-time operation, in order to avoid centrifugal work to shut down because of motor 6 overheat.

Wherein: the bottom surface four corners symmetry of casing 1 is equipped with elasticity shock attenuation stabilizer blade 14, can provide the elastic support effect for casing 1 at the centrifugation in-process, ensures operational environment's stability.

The working principle of the high-efficiency table type high-speed centrifuge provided by the utility model is as follows: after the cover 2 is opened, a test tube which is filled with a sample to be centrifuged is inserted into the sample slot 5, the test tube enters the slide seat 84, the cover 2 is closed, the motor 6 operates to drive the centrifugal disc 4 to rotate at a high speed for centrifugal work, the test tube and the slide seat 84 overcome the elastic force of the spring 85 to slide towards the bottom of the sample slot 5 under the action of centrifugal force, the ejector block 87 slides downwards along the axial sliding opening 86 along with the slide seat 84, along with the movement of the ejector block 87, the contact point of the tilting rod 82 and the ejector block 87 gradually moves downwards, so that the upper end of the tilting rod 82 approaches towards the central axis of the sample slot 5, the flexible clamping block 83 penetrates through the clamping opening at the upper end of the fastening cavity 81 to clamp the test tube, the automatic fastening of the test tube is realized, the stability of the test tube during the centrifugal work is ensured, and the test tube is not required to be manually fastened by personnel, the efficiency of the centrifugal work is improved by saving the operation time, in addition, under the influence of the meshing connection relationship between the toothed ring 12 and the large-diameter toothed disc 13, the large-diameter toothed disc 13 can drive the toothed ring 12 and the circular framed fan 11 to rotate together while rotating along with the centrifugal disc 4, thereby improving the air flow speed in the casing 1, enabling the heat generated by the operation of the motor 6 in the casing 1 to be rapidly discharged through the heat dissipation fin opening 9, ensuring that the motor 6 can operate for a long time, so as to avoid the interruption of the centrifugal work due to overheating of the motor 6, after the centrifugation is completed, the motor 6 stops operating, the slide carriage 84 can drive the test tube and the ejector block 87 to move upwards together under the elastic force of the spring 85, at the moment, the tilting rod 82 releases the locking of the test tube because of being pushed and limited by the ejector block 87 no longer, so that a person takes out the test tube, and the elastic shock absorption support legs 14 can provide elastic support for the casing 1 in the centrifugation process, ensuring the stability of the working environment.

It should be noted that the motor 6 disclosed in the above embodiment is the GNB2118A motor, and the control switch 7 is provided with a switch button corresponding to the motor 6 for controlling the switch operation thereof.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A high-efficient desk-top high speed centrifuge which characterized in that: comprises a shell (1) and a sample fastening mechanism (8);

case (1): an opening on the upper surface of the centrifugal plate is hinged with a cover (2) through a hinge, a frame plate (3) is arranged on the upper side inside the casing (1), a centrifugal disc (4) is rotatably connected in a round opening in the middle of the frame plate (3) through a bearing, sample slots (5) which are uniformly distributed are arranged on the upper surface of the centrifugal disc (4), a motor (6) is arranged in the center of the inner bottom surface of the casing (1), and an output shaft of the motor (6) is fixedly connected with the bottom surface of the centrifugal disc (4);

sample fastening mechanism (8): the centrifugal plate is arranged in the centrifugal plate (4) and is communicated with the adjacent sample slot (5);

Wherein: the front end of the upper surface of the casing (1) is provided with a control switch (7), the input end of the control switch (7) is electrically connected with an external power supply, and the input end of the motor (6) is electrically connected with the output end of the control switch (7).

2. A high efficiency table top high speed centrifuge as defined in claim 1 wherein: sample fastening device (8) are including fastening chamber (81), stick up pole (82) and flexible clamp piece (83), two liang of evenly distributed in the inside of centrifugal disc (4) in fastening chamber (81), and the centre gripping mouth of fastening chamber (81) upper end all is linked together with adjacent sample slot (5), and the inside of fastening chamber (81) all is connected with through round pin hub rotation and sticks up pole (82), and two relative medial surface upper ends of sticking up pole (82) of group all are equipped with flexible clamp piece (83).

3. A high efficiency table top high speed centrifuge as defined in claim 2 wherein: sample fastening device (8) still include slide (84), spring (85), axial sliding port (86) and kicking block (87), slide (84) sliding connection is respectively in the inside of sample slot (5), be equipped with spring (85) between the bottom surface of slide (84) and the inside bottom surface of sample slot (5), the interior arc wall lower extreme of sample slot (5) all is equipped with two axial sliding port (86) of symmetry each other, axial sliding port (86) are linked together with adjacent fastening chamber (81), the extrados symmetry of slide (84) is equipped with two kicking blocks (87), kicking block (87) are located inside and extend to the inside of fastening chamber (81) of adjacent axial sliding port (86).

4. A high efficiency table top high speed centrifuge as defined in claim 2 wherein: the fastening cavity (81) is parallel to the central axis of the adjacent sample slot (5), and the included angle between the upper rod body and the lower rod body of the tilting rod (82) is an obtuse angle.

5. A high efficiency table top high speed centrifuge as defined in claim 1 wherein: the bottom ends of the front side and the rear side of the casing (1) are provided with uniformly distributed radiating fins (9).

6. A high efficiency table top high speed centrifuge as defined in claim 1 wherein: the fan is characterized in that a U-shaped seat (10) is arranged on the front side of the inner bottom face of the casing (1), a circular fan (11) with a frame is rotatably connected inside the U-shaped seat (10) through a bearing, a toothed ring (12) is fixedly sleeved on the outer arc face of the circular fan (11) with the frame, a large-diameter toothed disc (13) is arranged on the edge of the bottom face of the centrifugal disc (4), and the toothed ring (12) is meshed with the large-diameter toothed disc (13).

7. A high efficiency table top high speed centrifuge as defined in claim 1 wherein: elastic shock absorption support legs (14) are symmetrically arranged at four corners of the bottom surface of the machine shell (1).