Small centrifugal machine

Abstract

The utility model discloses a small centrifugal machine which comprises a connecting base, a centrifugal machine body is fixedly arranged on the upper end face of the connecting base, a display screen is fixedly arranged at the center of the front end face of the centrifugal machine body, and two sets of connecting rotary knobs and limiting rotary shafts are arranged on the front end face of the centrifugal machine body. The limiting rotating shaft is arranged at the output end of the upper portion of the centrifugal machine body, and a limiting rotating base is fixedly arranged at the top of the limiting rotating shaft. Various solution test tubes can be rapidly and accurately positioned and limited through the inserting grooves, meanwhile, the threaded chuck is in threaded fit with the threaded groove, the stability of the threaded chuck for limiting the test tubes can be improved, and the two sets of limiting guide bases located in the fixed rotating base are convenient to use. And the alignment shaft at the bottom of the container clamping seat can be automatically locked and limited under the driving of the transmission guide shaft, so that the convenience of detaching the container clamping seat and a solution test tube by a subsequent worker is effectively improved, and the practicability of the centrifugal machine is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuge equipment, in particular to a small centrifuge. Background Art

[0002] Small centrifuge is a kind of laboratory equipment, which is widely used in many fields such as medical treatment, blood stations, universities, scientific research institutions, biopharmaceuticals, fine chemicals, agriculture and animal husbandry, new materials, petroleum, food, environmental protection, genetic engineering, etc. Its main function is to be used for high-speed centrifugal separation and precipitation experiments, and to quickly separate mixed solutions through centrifugal force.

[0003] For example, the utility model patent disclosed in the publication number is CN215612383U, a small centrifuge, which includes: a machine base, a motor is arranged inside it; a centrifugal turntable, which is arranged on the machine base, and the centrifugal turntable is fixedly connected to the rotating shaft of the motor; the centrifugal turntable is provided with a plurality of jacks; a speed controller, the speed controller is electrically connected to the motor, and the speed controller is embedded with a speed knob on the surface of the machine base, and the speed knob can rotate clockwise or counterclockwise at least 4 speed levels: 0 speed level, 1 speed level, 2 speed level, 3 speed level; wherein the 0 speed level corresponds to the motor speed of 0, and the 1-3 speed levels correspond to the motor speed increasing. The utility model can adjust the speed so that different solutions correspond to different motor speeds for centrifugal separation, so that each solution can achieve a better separation effect.

[0004] Although the above centrifuge has a certain speed regulation function, it is not convenient to quickly disassemble the carrying container inside the centrifuge. At the same time, the stability of limiting the centrifugal container during centrifugation is also insufficient. Therefore, a small centrifuge is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a small centrifuge to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a small centrifuge, comprising a connecting base, a centrifuge body is fixedly arranged on the upper end surface of the connecting base, a display screen is fixedly arranged at the center of the front end surface of the centrifuge body, and two sets of connecting knobs are arranged on the front end surface of the centrifuge body.

[0007] A limit rotating shaft, wherein the limit rotating shaft is arranged at the upper output end of the centrifuge body, and a limit rotating seat is fixedly arranged on the top of the limit rotating shaft, and four groups of positioning holes are equidistantly opened on the inner end surface of the limit rotating seat;

[0008] A limiting device is fixedly arranged on the upper end surface of the limiting rotating seat through the positioning hole.

[0009] Preferably, the limiting device includes a fixed swivel seat, a fixed groove is provided at the bottom of the inner end surface of the fixed swivel seat, and a servo motor is arranged on one side of the inner end surface of the fixed swivel seat, a transmission guide shaft is fixedly installed at the output end of the servo motor, and two groups of limiting guide seats are threadedly connected to the inner end surface of the fixed swivel seat through the transmission guide shaft, a fixed groove is provided on the inner end surface of the limiting guide seat, the inner end surface of the fixed swivel seat is fixedly clamped with a bearing device through the two groups of limiting guide seats, and a threaded chuck is threadedly connected to the upper end surface of the bearing device, and a positioning clamping shaft is fixedly arranged at the center of the lower end surface of the threaded chuck.

[0010] Preferably, the threaded chuck includes a container holder for support, the upper end surface of the container holder is equidistantly provided with plug-in grooves for limiting, a threaded groove is provided on the upper end surface of the container holder near the outside, and fixed sliders are equidistantly provided on the side end surface of the container holder.

[0011] Preferably, an alignment shaft is fixedly provided at the center of the lower end surface of the carrying device, and the limiting guide seat is fixedly clamped with the alignment shaft through the fixed rotating groove, and the limiting guide seat is slidably clamped inside the fixed rotating seat through the fixed sliding groove. The alignment shaft can provide sufficient limiting space for the axial direction of the carrying device, thereby improving the stability of the carrying device being limited inside the fixed rotating seat during centrifugation.

[0012] Preferably, a fixing groove is provided at the center of the upper end surface of the container holder, and the container holder is slidably connected to the positioning shaft through the fixing groove. The fixing groove can facilitate the subsequent positioning of the positioning shaft and improve the convenience of subsequent docking of the threaded chuck.

[0013] Preferably, the threaded chuck is threadedly connected to the container holder via the threaded groove, guide grooves are equidistantly provided inside the fixed swivel seat, and the container holder is slidably engaged with the guide grooves via the fixed slider, the guide grooves can provide sufficient positioning basis for the fixed slider, and at the same time, the limiting of the six groups of guide grooves and the fixed slider can improve the stability of the container holder supported inside the fixed swivel seat.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model can quickly and accurately position and limit various solution test tubes through the plug-in groove. At the same time, the threaded chuck cooperates with the threaded groove, which can improve the stability of the threaded chuck limiting the test tube. The two sets of limiting guide seats located inside the fixed rotating seat can automatically lock and limit the alignment shaft at the bottom of the container holder under the drive of the transmission guide shaft, which effectively improves the convenience of subsequent staff to separate the container holder and the solution test tube, thereby improving the practicality of the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0018] Figure 3 This is a disassembled diagram of the limiting device of the utility model;

[0019] Figure 4 This is a disassembled side view of the limiting device of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the carrying device of the utility model.

[0021] In the figure: 1-limiting rotating seat, 2-limiting device, 3-centrifuge body, 4-connecting base, 5-display screen, 6-connecting knob, 7-limiting rotating shaft, 8-positioning hole, 21-threaded chuck, 22-bearing device, 23-servo motor, 24-fixed rotating seat, 25-limiting guide seat, 26-fixed slide groove, 27-fixed rotating groove, 28-transmission guide shaft, 29-positioning clamping shaft, 221-container clamping seat, 222-threaded groove, 223-fixed slider, 224-plug-in groove. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides an embodiment: a small centrifuge, including a connecting base 4, a centrifuge body 3 is fixedly arranged on the upper end surface of the connecting base 4, and a display screen 5 is fixedly arranged at the center of the front end surface of the centrifuge body 3, and two groups of connecting knobs 6 are arranged on the front end surface of the centrifuge body 3,

[0024] The limiting rotating shaft 7 is arranged at the upper output end of the centrifuge body 3, and a limiting rotating seat 1 is fixedly arranged on the top of the limiting rotating shaft 7, and four groups of positioning holes 8 are equidistantly opened on the inner end surface of the limiting rotating seat 1;

[0025] The limiting device 2 is fixedly arranged on the upper end surface of the limiting rotating seat 1 through the positioning hole 8.

[0026] The limiting device 2 includes a fixed swivel seat 24, a fixed slide groove 26 is provided at the bottom of the inner end surface of the fixed swivel seat 24, and a servo motor 23 is arranged on one side of the inner end surface of the fixed swivel seat 24, a transmission guide shaft 28 is fixedly installed at the output end of the servo motor 23, and two groups of limiting guide seats 25 are threadedly connected to the inner end surface of the fixed swivel seat 24 through the transmission guide shaft 28, a fixed swivel groove 27 is provided on the inner end surface of the limiting guide seat 25, the inner end surface of the fixed swivel seat 24 is fixedly clamped with a carrying device 22 through the two groups of limiting guide seats 25, and a threaded chuck 21 is threadedly connected to the upper end surface of the carrying device 22, and a positioning clamping shaft 29 is fixedly arranged at the center of the lower end surface of the threaded chuck 21.

[0027] The threaded chuck 21 includes a container holder 221 for support, the upper end surface of the container holder 221 is equidistantly provided with insertion grooves 224 for limiting, and a threaded groove 222 is opened near the outer portion of the upper end surface of the container holder 221, and a fixed slider 223 is equidistantly arranged on the side end surface of the container holder 221.

[0028] A positioning shaft is fixedly arranged at the center of the lower end surface of the carrying device 22, and the limiting guide seat 25 is fixedly clamped with the positioning shaft through the fixed rotating groove 27. The limiting guide seat 25 is slidably clamped inside the fixed rotating seat 24 through the fixed sliding groove 26. The positioning shaft can provide sufficient limiting space for the axial direction of the carrying device 22, thereby improving the stability of the carrying device 22 being limited inside the fixed rotating seat 24 during centrifugation.

[0029] A fixing groove is provided at the center of the upper end surface of the container holder 221, and the container holder 221 is slidably connected to the positioning shaft 29 through the fixing groove. The fixing groove can facilitate the subsequent positioning of the positioning shaft 29 and improve the convenience of subsequent docking of the threaded chuck 21.

[0030] The threaded chuck 21 is threadedly connected to the container holder 221 through the threaded groove 222. Guide grooves are equidistantly provided inside the fixed swivel seat 24, and the container holder 221 is slidably connected to the guide grooves through the fixed slider 223. The guide grooves can provide sufficient positioning basis for the fixed slider 223. At the same time, the six groups of guide grooves and the limiting of the fixed slider 223 can improve the stability of the container holder 221 supported inside the fixed swivel seat 24.

[0031] Working principle: When in use, the user can first rotate the threaded chuck 21 so that the threaded chuck 21 and the inside of the thread groove 222 are threadedly separated, and then the user can position the test tubes that need to be centrifuged one by one into the plug-in slot 224. After positioning the test tubes of the solution to be centrifuged, the staff can reset the thread of the threaded chuck 21 to the inside of the thread groove 222. At this time, the bottom of the threaded chuck 21 can limit the test tube. Then the staff can position the carrying device 22 to the inside of the fixed rotating seat 24 through the alignment axis at the bottom. At this time, the servo motor 23 is started, and the servo motor 23 can synchronously drive the limiting guide seat 25 to move centripetally through the transmission guide shaft 28, so that the two sets of fixed rotating grooves 27 can be limited to the outside of the alignment axis to complete the locking. Then the centrifuge body 3 can drive the limiting rotating seat 1 and the limiting device 2 to rotate at high speed through the limiting rotating shaft 7, thereby completing the centrifugal operation.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small centrifuge, comprising a connecting base (4), a centrifuge body (3) being fixedly arranged on the upper end surface of the connecting base (4), a display screen (5) being fixedly arranged at the center of the front end surface of the centrifuge body (3), and two sets of connecting knobs (6) being arranged on the front end surface of the centrifuge body (3), characterized in that: A limit rotating shaft (7), the limit rotating shaft (7) being arranged at the upper output end of the centrifuge body (3), and a limit rotating seat (1) being fixedly arranged on the top of the limit rotating shaft (7), and four groups of positioning holes (8) being equidistantly provided on the inner end surface of the limit rotating seat (1); A limiting device (2), wherein the limiting device (2) is fixedly arranged on the upper end surface of the limiting rotating seat (1) through the positioning hole (8).

2. A small centrifuge according to claim 1, characterized in that: The limiting device (2) comprises a fixed rotating seat (24), a fixed sliding groove (26) is provided at the bottom of the inner end surface of the fixed rotating seat (24), and a servo motor (23) is arranged on one side of the inner end surface of the fixed rotating seat (24), a transmission guide shaft (28) is fixedly installed at the output end of the servo motor (23), and two groups of limiting guide seats (25) are threadedly connected to the inner end surface of the fixed rotating seat (24) through the transmission guide shaft (28), a fixed rotating groove (27) is provided on the inner end surface of the limiting guide seat (25), a bearing device (22) is fixedly clamped to the inner end surface of the fixed rotating seat (24) through the two groups of limiting guide seats (25), and a threaded chuck (21) is threadedly connected to the upper end surface of the bearing device (22), and a positioning clamping shaft (29) is fixedly arranged at the center of the lower end surface of the threaded chuck (21).

3. A small centrifuge according to claim 2, characterized in that: The threaded chuck (21) comprises a container holder (221) for supporting, the upper end surface of the container holder (221) is provided with insertion grooves (224) for limiting at equal intervals, and a threaded groove (222) is provided near the outer portion of the upper end surface of the container holder (221), and fixed sliders (223) are provided at equal intervals on the side end surface of the container holder (221).

4. A small centrifuge according to claim 3, characterized in that: An alignment shaft is fixedly arranged at the center of the lower end surface of the bearing device (22), and the limiting guide seat (25) is fixedly engaged with the alignment shaft through the fixed rotating groove (27), and the limiting guide seat (25) is slidably engaged in the interior of the fixed rotating seat (24) through the fixed sliding groove (26).

5. A small centrifuge according to claim 3, characterized in that: A fixing groove is provided at the center of the upper end surface of the container holder (221), and the container holder (221) is slidably connected to the positioning holder shaft (29) via the fixing groove.

6. A small centrifuge according to claim 3, characterized in that: The threaded chuck (21) is threadedly connected to the container holder (221) via the threaded groove (222); guide grooves are equidistantly provided inside the fixed rotating seat (24); and the container holder (221) is slidably connected to the guide grooves via the fixed sliding block (223).

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