A mini centrifuge convenient to carry

Abstract

This utility model discloses a portable mini centrifuge, relating to the field of centrifuge technology. The utility model includes a mounting base, a drive motor, a shaft arm assembly, and two slide rails. A motor sleeve is located above the mounting base, and the drive motor is housed within the motor sleeve. A shaft cap is fixedly mounted on the output shaft of the drive motor. The shaft arm assembly is located outside the shaft cap. The two slide rails are respectively located at both ends of the shaft arm assembly. A hoop slide seat is horizontally slidable within the slide rail, and a test tube hoop is housed within the hoop slide seat. The two ends of the test tube hoop are rotatably mounted on the inner walls of the two sides of the hoop slide seat. This utility model involves placing the liquid to be centrifuged into two test tubes, fitting the two test tubes into the test tube hoops at both ends, and then rotating the shaft arm assembly driven by the drive motor. Under centrifugal force, the lower ends of the test tubes within the hoops rise, while the liquid separates. By folding the slide rails downwards at both ends, the space occupied by the centrifuge is reduced, making it more portable.

Description

Technical Field

[0001] This utility model belongs to the field of centrifuge technology, and in particular relates to a portable mini centrifuge. Background Technology

[0002] In laboratory analysis, centrifugation is a crucial step in sample pretreatment in fields such as biology, chemistry, and medicine. While conventional centrifuges offer good separation results, their large size and limited mobility make them unsuitable for rapid on-site testing, field operations, or small laboratories with limited space. Existing mini centrifuges often suffer from insufficient operational stability, insecure tube mounting, or an insufficient number of samples that can be processed simultaneously. Furthermore, these devices typically cannot be effectively reduced in size when not in use, making them inconvenient to carry and store. Balancing centrifugation efficiency, operational stability, and portability has become a key challenge in the development of small centrifuge equipment.

[0003] To address these issues, we provide a portable mini centrifuge. Utility Model Content

[0004] The purpose of this invention is to provide a portable mini centrifuge. The centrifuge is designed by mounting a drive motor within a motor sleeve on a mounting base, and a shaft arm assembly on the output shaft at the upper end of the drive motor. Slide rails are installed at both ends of the shaft arm assembly, and slidable hoop slides are mounted within the slide rails. Test tube hoops are rotatably mounted within the hoop slides. The liquid to be centrifuged is placed into two test tubes, which are then fitted into the test tube hoops at both ends. The drive motor drives the shaft arm assembly to rotate, causing the lower ends of the test tubes within the hoops to rise under centrifugal force. Simultaneously, the liquid inside begins to separate into layers under the centrifugal force, achieving the centrifugal separation effect. By rotatably mounting one end of the slide rail to one end of the shaft arm assembly, after centrifugation of the liquid is complete, the slide rails at both ends can be folded downwards, reducing the space occupied by the centrifuge and making it more portable.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a portable mini centrifuge, including a mounting base, a drive motor, a shaft arm assembly, and two slide rails. A motor sleeve is provided on the top of the mounting base, and the drive motor is located inside the motor sleeve. A shaft cap is fixedly installed on the output shaft of the drive motor. The shaft arm assembly is located on the outside of the shaft cap. The two slide rails are respectively located at both ends of the shaft arm assembly. A hoop slide seat is horizontally slidably arranged inside the slide rail. The hoop slide seat is a U-shaped structure with its opening facing away from the shaft cap's axis. A test tube hoop is provided inside the hoop slide seat, and the two ends of the test tube hoop are rotatably installed on the inner walls of the two sides of the hoop slide seat.

[0006] A further feature of this invention is that the shaft arm assembly includes two shaft cap sleeves and a top cover. The shaft cap sleeves are semi-circular ring structures. Side arms are fixedly provided at both ends of the outer side wall of the shaft cap sleeves. The two shaft cap sleeves are respectively fixedly sleeved on both sides of the shaft cap. The side arms at both ends of the two shaft cap sleeves fit together. A transition ear is fixedly provided at the end of the side arm away from the shaft cap sleeve. A hinge ear is fixedly provided at the end of the slide rail away from the hoop slide seat. The hinge ear at one end of the two slide rails is vertically rotatably installed between the two transition ears at each end. Two through-arm grooves are circumferentially arrayed on the side wall of the top cover. The top cover is fixedly covered on the upper end of the two shaft cap sleeves. The side arms at both ends of the two shaft cap sleeves are respectively sleeved in the two through-arm grooves.

[0007] A further feature of this invention is that a ball channel is provided on the side of the adapter ear near the hinge ear, a compression spring is sleeved inside the ball channel, and a locking ball is connected to the end of the compression spring away from the bottom surface of the ball channel. Two hemispherical grooves are respectively provided on the two side walls of the hinge ear, and the hemispherical grooves match the locking ball.

[0008] A further feature of this invention is that the two side plates of the hoop slide are respectively fixed with sliding sleeves, and the two sliding sleeves are respectively slidably sleeved on the two rail rods of the slide rail.

[0009] A further feature of this invention is that a vertical sliding tube is fixedly installed on the upper end face of the top cover, and two vertical sliding grooves are circumferentially arrayed through the side wall of the vertical sliding tube. A transition sleeve is vertically slidably sleeved inside the vertical sliding tube, and two hinge joints are fixedly arrayed on the outer side wall of the transition sleeve. The two hinge joints are slidably sleeved in the two vertical sliding grooves respectively. A push rod is hinged inside the hinge joint, and the end of the push rod away from the hinge joint is hinged to the side of the hoop slide seat near the top cover.

[0010] A further feature of this invention is that an adjusting screw is threaded through the upper closed end of the vertical slide tube, and the lower end of the adjusting screw is rotatably installed inside the adapter sleeve.

[0011] A further feature of this invention is that a return spring is fitted inside the vertical sliding tube, with the upper end of the return spring pressing against the lower end face of the adapter sleeve.

[0012] This utility model has the following beneficial effects: 1. This utility model sets the drive motor inside the motor sleeve on the mounting base, sets the shaft arm assembly on the output shaft at the upper end of the drive motor, sets the slide rails at both ends of the shaft arm assembly, slides the hoop slide in the slide rails, and rotates the test tube hoop in the hoop slide. The liquid to be centrifuged is loaded into two test tubes, and the two test tubes are respectively put into the test tube hoops at both ends. The drive motor drives the shaft arm assembly to rotate. Under the action of centrifugal force, the lower end of the test tube in the test tube hoop is raised, and at the same time, the liquid inside begins to separate into layers under the action of centrifugal force, thus achieving the technical effect of centrifugal separation. 2. This utility model rotates and installs one end of the slide rail to one end of the shaft arm assembly. After centrifuging the liquid, the slide rails at both ends are folded down, reducing the space occupied by the centrifuge and making it easier to carry. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below: Figure 1 This is a schematic diagram of a portable mini centrifuge. Figure 2 This is a schematic diagram of the slide rail and the hoop slide block; Figure 3 This is an exploded view of the drive motor and shaft arm assembly; Figure 4 This is an exploded view of the shaft arm assembly; Figure 5 This is a side sectional view of the shaft arm assembly; The attached diagram lists the components represented by each number as follows: 1-Mounting base, 101-Motor sleeve, 2-Drive motor, 201-Shaft cap, 3-Shaft arm assembly, 301-Shaft cap sleeve, 301a-Side arm, 301b-Adapter ear, 301b-1-Ball channel, 301b-2-Compression spring, 301b-3-Locking ball, 302-Top cover, 302a-Through arm groove, 302b-Vertical slide tube, 302b-1-Vertical slide groove, 302b-2-Adapter sleeve, 302b-3-Hinge joint, 302b-4-Push rod, 302b-5-Adjusting screw, 302b-6-Reset spring, 4-Slide rail, 401-Clamp slide seat, 401a-Slide sleeve, 402-Test tube clamp, 403-Hinge ear, 403a-Hemispherical groove. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example 1

[0015] Please see Figures 1 to 4This utility model is a portable mini centrifuge, including a mounting base 1, a drive motor 2, a shaft arm assembly 3, and two slide rails 4. The drive motor 2 is installed in a motor sleeve 101 on the mounting base 1. The shaft arm assembly 3 is installed on the output shaft at the upper end of the drive motor 2. Slide rails 4 are respectively installed at both ends of the shaft arm assembly 3. Hoop slides 401 are slidably installed in the slide rails 4. Test tube hoops 402 are rotatably installed in the hoop slides 401. The liquid to be centrifuged is loaded into two test tubes, and the two test tubes are respectively fitted into the test tube hoops 402 at both ends. The drive motor 2 drives the shaft arm assembly 3 to rotate. Under the action of centrifugal force, the lower end of the test tube in the test tube hoops 402 is raised. At the same time, the liquid inside begins to separate under the action of centrifugal force, realizing the technical effect of centrifugal separation. By rotatably installing one end of the slide rail 4 with one end of the shaft arm assembly 3, after the centrifugation of the liquid is completed, the slide rails 4 at both ends are folded down, reducing the space occupied by the centrifuge and making it more portable.

[0016] Specifically, a motor sleeve 101 is provided above the mounting base 1, a drive motor 2 is provided inside the motor sleeve 101, a shaft cap 201 is fixedly installed on the output shaft of the drive motor 2, a shaft arm assembly 3 is provided on the outside of the shaft cap 201, two slide rails 4 are respectively provided at both ends of the shaft arm assembly 3, a hoop slide seat 401 is horizontally slidably provided inside the slide rail 4, the hoop slide seat 401 is a U-shaped structure with its opening facing away from the axis of the shaft cap 201, a test tube hoop 402 is provided inside the hoop slide seat 401, and the two ends of the test tube hoop 402 are respectively rotatably installed on the inner walls of the two sides of the hoop slide seat 401.

[0017] Furthermore, the shaft arm assembly 3 includes two shaft cap sleeves 301 and a top cover 302. The shaft cap sleeve 301 has a semi-circular ring structure. Side arms 301a are fixed at both ends of the outer side wall of the shaft cap sleeve 301. The two shaft cap sleeves 301 are fixedly sleeved on both sides of the shaft cap 201. The side arms 301a at both ends of the two shaft cap sleeves 301 fit together. A transition ear 301b is fixed at the end of the side arm 301a away from the shaft cap sleeve 301. A hinge ear 403 is fixed at the end of the slide rail 4 away from the hoop slide seat 401. The hinge ear 403 at one end of the two slide rails 4 is vertically rotatably installed between the two transition ears 301b at each end. Two through-arm grooves 302a are circumferentially arrayed on the side wall of the top cover 302. The top cover 302 is fixedly covered on the upper end of the two shaft cap sleeves 301. The side arms 301a at both ends of the two shaft cap sleeves 301 are respectively sleeved in the two through-arm grooves 302a.

[0018] Furthermore, a ball channel 301b-1 is provided on the side of the adapter ear 301b near the hinge ear 403. A compression spring 301b-2 is fitted inside the ball channel 301b-1. A locking ball 301b-3 is connected to one end of the compression spring 301b-2 away from the inner bottom surface of the ball channel 301b-1. Two hemispherical grooves 403a are respectively provided on the two side walls of the hinge ear 403. The hemispherical grooves 403a match the locking ball 301b-3. When the hinge ear 403 between the adapter ears 301b is rotated, the compression spring 301b-2 pushes the locking ball 301b-3 into the hemispherical groove 403a, thereby locking the position of the hinge ear 403.

[0019] Furthermore, the two side plates of the hoop slide block 401 are respectively fixed with sliding sleeves 401a, and the two sliding sleeves 401a are respectively slidably sleeved on the two rails of the slide rail 4.

[0020] The operation process in this embodiment is as follows: Rotate the slide rails 4 at both ends to make them horizontal. Put the liquid to be centrifuged into two test tubes and put the two test tubes into the test tube clamps 402 at both ends. Drive the motor 2 to drive the shaft arm assembly 3 to rotate. Under the action of centrifugal force, the lower end of the test tube in the test tube clamp 402 is raised. At the same time, the liquid inside begins to separate into layers under the action of centrifugal force, realizing the technical effect of centrifugal separation. After the liquid is centrifuged, take the test tubes out of the test tube clamps 402 and bend the slide rails 4 at both ends downward to reduce the space occupied by the centrifuge, thus making it easier to carry. Example 2

[0021] Please see Figures 1 to 5 Based on Example 1, push rods 302b-4 are hinged to the side of the hoop slide 401 at both ends near the top cover 302. One end of the two push rods 302b-4 is hinged to the hinge joints 302b-3 on both sides of the adapter sleeve 302b-2. By vertically moving the adapter sleeve 302b-2, the two push rods 302b-4 drive the hoop slide 401 at both ends to slide horizontally, thereby adjusting the centrifugal circumferential radius of the hoop slide 401, and thus adjusting the centrifugal force on the liquid in the test tube.

[0022] Specifically, a vertical sliding tube 302b is fixedly installed on the upper end face of the top cover 302. Two vertical sliding grooves 302b-1 are circumferentially arranged through the side wall of the vertical sliding tube 302b. A transition sleeve 302b-2 is vertically slidably sleeved inside the vertical sliding tube 302b. Two hinge joints 302b-3 are fixedly arranged circumferentially on the outer side wall of the transition sleeve 302b-2. The two hinge joints 302b-3 are slidably sleeved in the two vertical sliding grooves 302b-1 respectively. A push rod 302b-4 is hinged inside the hinge joint 302b-3. The end of the push rod 302b-4 away from the hinge joint 302b-3 is hinged to the side of the hoop slide 401 near the top cover 302.

[0023] Furthermore, an adjusting screw 302b-5 is threaded through the upper closed end of the vertical sliding tube 302b. The lower end of the adjusting screw 302b-5 is rotatably installed inside the adapter sleeve 302b-2. Rotating the adjusting screw 302b-5 causes the adjusting screw 302b-5 to push the adapter sleeve 302b-2 to move.

[0024] Furthermore, a return spring 302b-6 is fitted inside the vertical slide tube 302b. The upper end of the return spring 302b-6 rests against the lower end face of the adapter sleeve 302b-2. When the adjusting screw 302b-5 spirals upward, the adapter sleeve 302b-2 moves upward under the elastic force of the return spring 302b-6, thereby causing the two push rods 302b-4 to pull the hoop slide seats 401 at both ends closer to each other.

[0025] The operation process in this embodiment is as follows: Rotate the adjusting screw 302b-5 to push the adapter sleeve 302b-2 to move, so that the two push rods 302b-4 drive the hoop slides 401 at both ends to slide horizontally, thereby adjusting the centrifugal circumferential radius of the hoop slides 401, and thus adjusting the centrifugal force on the liquid in the test tube.

[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A portable mini centrifuge, comprising a mounting base (1), a drive motor (2), a shaft arm assembly (3), and two slide rails (4), characterized in that: A motor sleeve (101) is provided above the mounting base (1). The drive motor (2) is located inside the motor sleeve (101). A shaft cap (201) is fixedly installed on the output shaft of the drive motor (2). The shaft arm assembly (3) is located outside the shaft cap (201). Two slide rails (4) are respectively located at both ends of the shaft arm assembly (3). A hoop slide seat (401) is horizontally slidably arranged inside the slide rail (4). The hoop slide seat (401) is a U-shaped structure with its opening facing away from the shaft cap (201) axis. A test tube hoop (402) is provided inside the hoop slide seat (401). The two ends of the test tube hoop (402) are respectively rotatably installed on the inner walls of the two sides of the hoop slide seat (401).

2. The portable mini centrifuge according to claim 1, characterized in that: The shaft arm assembly (3) includes two shaft cap sleeves (301) and a top cover (302). The shaft cap sleeves (301) are semi-circular ring structures. Side arms (301a) are fixed at both ends of the outer side wall of the shaft cap sleeves (301). The two shaft cap sleeves (301) are respectively fixedly sleeved on both sides of the shaft cap (201). The side arms (301a) at both ends of the two shaft cap sleeves (301) fit together. An adapter ear (301b) is fixed at the end of the side arm (301a) away from the shaft cap sleeve (301). The slide rail (4) is fixed with a hinge ear (403) at one end away from the hoop slide seat (401). The hinge ears (403) at one end of the two slide rails (4) are vertically rotated and installed between two adapter ears (301b) at each end. The side wall of the top cover (302) is circumferentially arrayed with two through-arm grooves (302a). The top cover (302) is fixedly covered on the upper end of the two shaft cap sleeves (301). The side arms (301a) at both ends of the two shaft cap sleeves (301) are respectively sleeved in the two through-arm grooves (302a).

3. A portable mini centrifuge according to claim 2, characterized in that: The adapter ear (301b) has a ball channel (301b-1) on the side near the hinge ear (403). A compression spring (301b-2) is fitted inside the ball channel (301b-1). A locking ball (301b-3) is connected to one end of the compression spring (301b-2) away from the bottom surface of the ball channel (301b-1). Two hemispherical grooves (403a) are respectively opened on the two side walls of the hinge ear (403). The hemispherical grooves (403a) match the locking ball (301b-3).

4. A portable mini centrifuge according to claim 3, characterized in that: The two side plates of the hoop slide (401) are respectively fixed with sliding sleeves (401a), and the two sliding sleeves (401a) are respectively slidably sleeved on the two rails of the slide rail (4).

5. A portable mini centrifuge according to claim 2, characterized in that: A vertical sliding tube (302b) is fixedly installed on the upper end face of the top cover (302). Two vertical sliding grooves (302b-1) are circumferentially arranged through the side wall of the vertical sliding tube (302b). A transition sleeve (302b-2) is vertically slidably sleeved inside the vertical sliding tube (302b). Two hinge joints (302b-3) are fixedly arranged circumferentially on the outer side wall of the transition sleeve (302b-2). The two hinge joints (302b-3) are slidably sleeved in the two vertical sliding grooves (302b-1) respectively. A push rod (302b-4) is hinged inside the hinge joint (302b-3). The end of the push rod (302b-4) away from the hinge joint (302b-3) is hinged to the side of the hoop slide (401) near the top cover (302).

6. A portable mini centrifuge according to claim 5, characterized in that: The upper closed end of the vertical slide tube (302b) is threaded with an adjusting screw (302b-5), and the lower end of the adjusting screw (302b-5) is rotatably installed in the adapter sleeve (302b-2).

7. A portable mini centrifuge according to claim 6, characterized in that: The vertical slide tube (302b) is fitted with a return spring (302b-6), and the upper end of the return spring (302b-6) rests against the lower end face of the adapter sleeve (302b-2).

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