A centrifuge tube cleaning device for molecular biology experiments
By designing a rotating brush for the inner wall and bottom bristles, combined with a linkage gear and linkage mechanism, the problem of existing devices being unable to clean in all directions was solved, achieving synchronous and efficient cleaning of the inner and outer walls of centrifuge tubes, thus improving the accuracy and efficiency of experiments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KASHGAR CUSTOMS TECH CENT
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-03
AI Technical Summary
Existing centrifuge tube cleaning devices are difficult to achieve all-round cleaning, especially the simultaneous cleaning of the inner bottom and outer wall, resulting in cleaning dead zones that affect the accuracy and efficiency of experiments.
A centrifuge tube cleaning device was designed, which includes a handle, a motor, and a rotating rod. By rotating the inner wall bristles and the bottom bristles, combined with a linkage gear and linkage mechanism, the device can achieve all-round synchronous cleaning of the inner and outer walls of the centrifuge tube.
It achieves comprehensive and efficient cleaning of the inner and outer walls of centrifuge tubes, avoiding sample residue and improving the accuracy of experiments and cleaning efficiency.
Smart Images

Figure CN224444026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of molecular biology experimental technology, and in particular to a centrifuge tube cleaning device for molecular biology experiments. Background Technology
[0002] Molecular biology experiments are widely used in life science research fields such as gene cloning, protein expression, and nucleic acid extraction. They rely on the preparation and processing of high-purity samples. Centrifuge tubes, as commonly used consumables in experiments, undertake the important tasks of sample centrifugation, separation, and transfer. During the experiment, centrifuge tubes need to be used repeatedly or processed in multiple batches. Ensuring their cleanliness is directly related to the accuracy and repeatability of experimental results. Therefore, efficient and reliable centrifuge tube cleaning devices are of great significance for ensuring the smooth progress of molecular biology experiments.
[0003] Existing centrifuge tube cleaning devices typically only clean the inner sidewalls of centrifuge tubes, making it difficult to effectively treat the bottom area. They lack a structure that allows for simultaneous brushing of the inner wall and bottom, hindering comprehensive rotational brushing of the centrifuge tube's inner wall. This results in limited cleaning coverage, particularly when sample residue remains at the bottom, leading to unsatisfactory cleaning and potentially affecting the accuracy of subsequent experiments. Furthermore, existing cleaning devices generally lack a linkage structure that can simultaneously clean the outer wall of the centrifuge tube, preventing simultaneous cleaning of both inner and outer walls. This results in low cleaning efficiency, numerous blind spots, and an inability to meet the high-efficiency cleanliness requirements of experiments.
[0004] Therefore, this invention proposes a centrifuge tube cleaning device for molecular biology experiments. Utility Model Content
[0005] To overcome the limitations of existing centrifuge tube cleaning devices, which generally only clean the inner and side walls and lack a structure for simultaneous brushing of the inner and bottom walls, making it difficult to achieve all-round cleaning, especially since bottom residues are difficult to remove, affecting experimental accuracy, and because most devices also lack a mechanism for simultaneous cleaning of the inner and outer walls, resulting in low efficiency and many cleaning dead spots, it is difficult to meet the experimental requirements for high efficiency and cleanliness.
[0006] The technical solution of this utility model is as follows: a centrifuge tube cleaning device for molecular biology experiments, including a handle, a motor and a rotating rod; a connecting seat is fixedly connected to the top of the handle, a soft pad is fixedly connected to the bottom of the handle, the motor is fixedly connected inside the handle, a drive shaft is fixedly connected to the top of the motor, the drive shaft is rotatably connected inside the handle and the connecting seat, the drive shaft passes through the connecting seat, and the rotating rod is fixedly connected to the end of the drive shaft away from the motor.
[0007] Preferably, the grip and the connecting seat are an integrated structure, the motor is located near the connecting seat, and the drive shaft and the rotating rod are located near the center of the grip.
[0008] Preferably, a control panel is fixedly connected to the outer wall of the grip, the control panel is located near the connector, a button is fixedly connected inside the control panel, and a battery compartment is fixedly connected inside the grip, the battery compartment is located near the soft pad.
[0009] Preferably, a central toothed ring is fixedly connected to the top of the connecting seat, and a slide rail is provided inside the connecting seat. The slide rail is located near the central toothed ring, and a connecting rod is slidably connected inside the slide rail. The connecting rod is symmetrically installed on both sides of the slide rail. The connecting rod is divided into two groups. A linkage gear is fixedly connected to the outer wall of one group of connecting rods. The linkage gear is rotatably connected to the top of the connecting seat and meshes with the outer wall of the central toothed ring.
[0010] Preferably, a connecting ring is fixedly connected to the outer wall of the drive shaft, and the connecting ring is fixedly connected to the rotating rod. A connecting rod is fixedly connected to the outer wall of the connecting ring, and the connecting rod is symmetrically installed on both sides of the connecting ring. The connecting rod is rotatably connected to the top of the central toothed ring.
[0011] Preferably, a linkage ring is fixedly connected to the end of the connecting rod away from the connecting ring. The linkage ring is divided into two groups: one group of linkage rings is rotatably connected to the outer wall of the connecting rod, and the other group of linkage rings is fixedly connected to the outer wall of the connecting rod.
[0012] Preferably, an inner wall brush is fixedly connected to the outer wall of the rotating rod, a bottom brush is fixedly connected to the top of the rotating rod, a support is fixedly connected to the top of one set of connecting rods, a sponge is fixedly connected to the side of the support near the rotating rod, and an outer wall brush is fixedly connected to the top of another set of connecting rods.
[0013] The beneficial effects of this utility model are:
[0014] 1. When the device is used, press the button to start the motor, which drives the drive shaft to rotate. This drives the rotating rod to rotate synchronously with the drive shaft. As the rotating rod rotates, the inner wall bristles rotate and brush the inner wall of the centrifuge tube, while the bottom bristles simultaneously clean the bottom of the centrifuge tube, achieving all-round cleaning of the inner wall and preventing sample residue from depositing at the bottom, thus avoiding affecting the accuracy of subsequent experiments.
[0015] 2. During the process of the device thoroughly cleaning the inner wall of the centrifuge tube, the drive shaft rotates continuously, and the connecting ring rotates with the drive shaft. Through the connecting rod, the linkage ring moves in a circular motion around the drive shaft, which in turn drives the two sets of connecting rods to move in a synchronous circular motion. One set of connecting rods drives the linkage gear to rotate around the central gear ring. While revolving around the central gear ring, the gear rotates on its own axis, thereby driving the other set of connecting rods to achieve planetary rotation. This allows the outer wall brush to thoroughly clean the outer wall of the centrifuge tube. At the same time, the other set of connecting rods drives the support to move in a synchronous circular motion, causing the sponge to rotate and wipe the outer wall of the centrifuge tube, further improving the cleaning effect of the outer wall. This achieves simultaneous cleaning of the inner and outer walls of the centrifuge tube, providing a comprehensive and efficient cleaning of both the inner and outer walls. Attached Figure Description
[0016] Figure 1 The diagram shown is a top view of the overall structure of this utility model;
[0017] Figure 2 The diagram shown is a bottom view of the overall structure of this utility model;
[0018] Figure 3 The diagram shown is a schematic cross-sectional view of the overall structure of this utility model.
[0019] Figure 4 The diagram shown is a schematic representation of the connector structure of this utility model.
[0020] Figure 5 The diagram shown is a schematic representation of the drive shaft structure of this utility model.
[0021] Figure 6 The diagram shown is a schematic representation of the rotating rod structure of this utility model.
[0022] Explanation of reference numerals in the attached diagram: 1. Handle; 101. Control panel; 102. Button; 103. Battery compartment; 2. Connecting seat; 201. Center gear ring; 202. Slide rail; 203. Connecting rod; 204. Linkage gear; 3. Soft pad; 4. Motor; 5. Drive shaft; 501. Connecting ring; 502. Linkage rod; 503. Linkage ring; 6. Rotating rod; 601. Inner wall brush bristles; 602. Bottom brush bristles; 603. Support; 604. Sponge; 605. Outer wall brush. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-6 This utility model provides a technical solution: a centrifuge tube cleaning device for molecular biology experiments, including a handle 1, a motor 4 and a rotating rod 6; a connecting seat 2 is fixedly connected to the top of the handle 1, a soft pad 3 is fixedly connected to the bottom of the handle 1, the motor 4 is fixedly connected inside the handle 1, a drive shaft 5 is fixedly connected to the top of the motor 4, the drive shaft 5 is rotatably connected inside the handle 1 and the connecting seat 2, the drive shaft 5 passes through the connecting seat 2, and the rotating rod 6 is fixedly connected to the end of the drive shaft 5 away from the motor 4.
[0025] The handle 1 and the connecting seat 2 are integrated structures. The motor 4 is located near the connecting seat 2, and the drive shaft 5 and the rotating rod 6 are located near the center of the handle 1. The integrated structure of the handle 1 and the connecting seat 2 directly improves the overall structural strength of the device. The position design of the drive shaft 5 and the rotating rod 6 can ensure that the inner and outer brushes run smoothly and efficiently during the cleaning process.
[0026] A control panel 101 is fixedly connected to the outer wall of the grip 1. The control panel 101 is located near the connector 2. A button 102 is fixedly connected inside the control panel 101. A battery compartment 103 is fixedly connected inside the grip 1. The battery compartment 103 is located near the soft pad 3. The position design of the control panel 101 makes it easy to reach the button 102 naturally when holding the grip, improving the convenience of operation. The position design of the battery compartment 103 helps to balance the overall center of gravity of the device and reduce the burden on the front end.
[0027] A central gear ring 201 is fixedly connected to the top of the connecting seat 2. A slide rail 202 is provided inside the connecting seat 2. The slide rail 202 is located near the central gear ring 201. A connecting rod 203 is slidably connected inside the slide rail 202. The connecting rod 203 is symmetrically installed on both sides of the slide rail 202. The connecting rod 203 is divided into two groups. A linkage gear 204 is fixedly connected to the outer wall of one group of connecting rods 203. The linkage gear 204 is rotatably connected to the top of the connecting seat 2. The linkage gear 204 meshes with the outer wall of the central gear ring 201. The meshing of the central gear ring 201 and the linkage gear 204 enables the linkage gear 204 to revolve and rotate around the central gear ring 201 during the operation of the device, thereby driving the connecting rod 203 to generate planetary rotation.
[0028] A connecting ring 501 is fixedly connected to the outer wall of the drive shaft 5. The connecting ring 501 is fixedly connected to the outer wall of the connecting ring 501 of the rotating rod 6. A connecting rod 502 is fixedly connected to the outer wall of the connecting ring 501. The connecting rod 502 is symmetrically installed on both sides of the connecting ring 501. The connecting rod 502 is rotatably connected to the top of the central toothed ring 201. During the rotation of the drive shaft 5, the connecting rod 502 can perform circular motion around the drive shaft 5, realizing the stable transmission of power from the drive shaft 5 to the peripheral linkage mechanism.
[0029] A linkage ring 503 is fixedly connected to the end of the connecting rod 502 away from the connecting ring 501. The linkage ring 503 is divided into two groups. One group of linkage rings 503 is rotatably connected to the outer wall of the connecting rod 203, and the other group of linkage rings 503 is fixedly connected to the outer wall of the connecting rod 203. This allows one group of connecting rods 203 to rotate relative to each other under the drive of the linkage ring 503, adapting to angle changes during track operation and ensuring smooth movement. The other group of connecting rods 203 rotates synchronously with the linkage ring 503, enabling accurate operation of the brushing or wiping components.
[0030] An inner wall brush 601 is fixedly connected to the outer wall of the rotating rod 6, and a bottom brush 602 is fixedly connected to the top of the rotating rod 6. A support 603 is fixedly connected to the top of a set of connecting rods 203. A sponge 604 is fixedly connected to the side of the support 603 near the rotating rod 6. An outer wall brush 605 is fixedly connected to the top of another set of connecting rods 203. The inner wall brush 601 and the bottom brush 602 rotate and brush the inner wall and bottom of the centrifuge tube to achieve all-round cleaning of the internal surface. The sponge 604 is used to gently wipe the outer wall of the centrifuge tube to effectively remove residual water stains or dirt. The outer wall brush 605 rotates and brushes around the outer wall of the centrifuge tube.
[0031] Working principle: According to Figures 1 to 6 As shown, when the device is ready to be used, first, hold the handle 1 with external force and align the opening of the external centrifuge tube to be cleaned, which has been pre-rinsed by water flow, with the rotating rod 6, so that it is inserted along the inner wall of the external centrifuge tube. During the insertion process, the inner wall bristles 601 are attached to the inner wall of the centrifuge tube, the bottom bristles 602 are attached to the inner bottom, and the sponge 604 and the outer wall brush 605 are attached to the outer wall of the centrifuge tube, thus completing the cleaning preparation.
[0032] according to Figures 2 to 6 As shown, when the device is used, firstly, by pressing button 102 with external force, the power start motor 4 in battery compartment 103 is activated. Motor 4 runs stably in handle 1 and drives drive shaft 5 to start rotating in connecting seat 2. Then, drive rotating rod 6 to rotate synchronously with drive shaft 5. As rotating rod 6 rotates, inner wall bristles 601 rotate and brush the inner wall of outer centrifuge tube, and bottom bristles 602 simultaneously clean the bottom of outer centrifuge tube, achieving all-round cleaning of the inner wall.
[0033] according to Figures 3 to 6As shown, during the process of the device thoroughly cleaning the inner wall of the external centrifuge tube, firstly, the drive shaft 5 rotates continuously, and the connecting ring 501 rotates with the drive shaft 5. Through the connecting rod 502, the linkage ring 503 is driven to make a circular motion around the drive shaft 5. The linkage ring 503 then drives two sets of connecting rods 203 to move synchronously in a circular motion along the slide rail 202. One set of connecting rods 203 drives the linkage gear 204 to rotate around the central gear ring 201. Since the linkage gear 204 meshes with the central gear ring 201, it generates its own rotation while revolving, thereby driving one set of connecting rods 203 to achieve planetary rotation, so that the outer wall brush 605 thoroughly cleans the outer wall of the centrifuge tube. At the same time, the other set of connecting rods 203 drives the support 603 to move synchronously in a circular motion, so that the sponge 604 rotates and wipes around the outer wall of the centrifuge tube, further improving the cleaning effect of the outer wall.
[0034] The control panel 101, battery compartment 103, and motor 4 are existing technologies on the market and will not be described in detail here.
[0035] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A centrifuge tube cleaning device for molecular biology experiments, comprising a handle (1), a motor (4), and a rotating rod (6); characterized in that: A connecting seat (2) is fixedly connected to the top of the grip (1), a soft pad (3) is fixedly connected to the bottom of the grip (1), the motor (4) is fixedly connected inside the grip (1), a drive shaft (5) is fixedly connected to the top of the motor (4), the drive shaft (5) is rotatably connected inside the grip (1) and the connecting seat (2), the drive shaft (5) passes through the connecting seat (2), and the rotating rod (6) is fixedly connected to the end of the drive shaft (5) away from the motor (4).
2. The centrifuge tube cleaning device for molecular biology experiments according to claim 1, characterized in that: The grip (1) and the connecting seat (2) are an integrated structure. The motor (4) is located near the connecting seat (2), and the drive shaft (5) and the rotating rod (6) are located near the center of the grip (1).
3. The centrifuge tube cleaning device for molecular biology experiments according to claim 1, characterized in that: A control panel (101) is fixedly connected to the outer wall of the grip (1). The control panel (101) is located near the connector (2). A button (102) is fixedly connected inside the control panel (101). A battery compartment (103) is fixedly connected inside the grip (1). The battery compartment (103) is located near the pad (3).
4. The centrifuge tube cleaning device for molecular biology experiments according to claim 1, characterized in that: A central gear ring (201) is fixedly connected to the top of the connecting seat (2). A slide rail (202) is provided inside the connecting seat (2). The slide rail (202) is located near the central gear ring (201). A connecting rod (203) is slidably connected inside the slide rail (202). The connecting rod (203) is symmetrically installed on both sides of the slide rail (202). The connecting rod (203) is divided into two groups. A linkage gear (204) is fixedly connected to the outer wall of one group of the connecting rod (203). The linkage gear (204) is rotatably connected to the top of the connecting seat (2). The linkage gear (204) meshes with the outer wall of the central gear ring (201).
5. The centrifuge tube cleaning device for molecular biology experiments according to claim 4, characterized in that: A connecting ring (501) is fixedly connected to the outer wall of the drive shaft (5). The connecting ring (501) is fixedly connected to the rotating rod (6). A connecting rod (502) is fixedly connected to the outer wall of the connecting ring (501). The connecting rod (502) is symmetrically installed on both sides of the connecting ring (501). The connecting rod (502) is rotatably connected to the top of the central toothed ring (201).
6. The centrifuge tube cleaning device for molecular biology experiments according to claim 5, characterized in that: The connecting rod (502) is fixedly connected to a linkage ring (503) at the end away from the connecting ring (501). The linkage ring (503) is divided into two groups. One group of the linkage rings (503) is rotatably connected to the outer wall of the connecting rod (203), and the other group of the linkage rings (503) is fixedly connected to the outer wall of the connecting rod (203).
7. A centrifuge tube cleaning device for molecular biology experiments according to claim 4, characterized in that: An inner wall brush (601) is fixedly connected to the outer wall of the rotating rod (6), a bottom brush (602) is fixedly connected to the top of the rotating rod (6), a support (603) is fixedly connected to the top of a set of connecting rods (203), a sponge (604) is fixedly connected to the side of the support (603) near the rotating rod (6), and an outer wall brush (605) is fixedly connected to the top of another set of connecting rods (203).