A cleaning device for a centrifuge

Abstract

The utility model relates to centrifuge field discloses a kind of cleaning device for centrifuge, including motor, the output shaft of motor is fixedly connected with reciprocating screw rod, the outer arc surface of reciprocating screw rod is provided with infiltration cleaning device, for the rotor hole inside centrifuge is cleaned, the outside of infiltration cleaning device is provided with positioning device, for the position limitation of cleaning cotton, the infiltration cleaning device includes water tank, the lower surface of water tank is fixedly connected with motor, the upper end of water tank is fixedly connected with water inlet.The utility model in the present application, by the water tank, water inlet, hose, connecting block, threaded block, slide rail being set, water in water tank can flow to the water storage cotton inside connecting block under the action of communicating vessel principle, and pass through capillary action and make it pass to cleaning cotton, to avoid the dirt storage caused by a large amount of moisture remaining in rotor hole inside in traditional dipping water cleaning process.

Description

Technical Field

[0001] This utility model relates to the field of centrifuges, and in particular to a cleaning device for centrifuges. Background Technology

[0002] Centrifuges are core equipment used in laboratories, medical and industrial fields to separate mixtures. Their internal rotor system (especially the rotor holes) is a key structure that carries the centrifuge tubes and directly affects the separation effect and equipment life.

[0003] In existing technologies, cleaning centrifuge rotor holes is mostly done manually: the operator first prepares warm water or neutral detergent, dips a soft cloth, cotton swabs or other cleaning tools in an appropriate amount of cleaning medium, and then manually inserts them into the rotor hole to wipe away the dirt remaining on the hole wall and bottom; for stubborn dirt, the cleaning tool is first dipped in water and covered on the dirt to soften it, and then further wiped after the dirt is loosened. In some cases, a special thin cleaning brush is also used to assist in cleaning to ensure that there is no obvious residue on the inner wall of the rotor hole.

[0004] The most critical shortcoming of the existing technology is that the cleaning process relies on manual water application, which makes it difficult to accurately control the amount of water applied to the cleaning tools. This can easily lead to excessive water residue in the grooves, gaps, and other dead corners inside the rotor holes. This residual water cannot be dried quickly and completely, which not only mixes with the dirt that accumulates later to form stubborn stains that are more difficult to clean, but may also accelerate the corrosion of the metal inner wall of the rotor holes, affecting the structural precision and service life of the rotor in the long term. Therefore, a centrifuge cleaning device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a centrifuge cleaning device, which aims to improve the existing manual water-dipped cleaning method for centrifuge rotor holes. Because the amount of water is difficult to control precisely, water is easily left in the dead corners of the rotor holes, which in turn leads to the accumulation of stubborn stains and corrosion of the metal inner wall of the rotor holes.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cleaning device for a centrifuge, including a motor, a reciprocating lead screw fixedly connected to the output shaft of the motor, an immersion cleaning device provided on the outer arc surface of the reciprocating lead screw for cleaning the rotor hole inside the centrifuge, and a positioning device provided on the outside of the immersion cleaning device for limiting the position of the cleaning cotton.

[0007] The immersion cleaning device includes a water tank, the lower surface of which is fixedly connected to a motor, an inlet fixedly connected to the upper end of the water tank, a hose fixedly connected to the lower part of the outer arc surface of the water tank, a connecting block fixedly connected to the end of the hose away from the water tank, a threaded block fixedly connected to the inner arc surface of the connecting block, and a slide rail fixedly connected to the lower part of the outer arc surface of the water tank, the slide rail being slidably connected to the connecting block.

[0008] As a further description of the above technical solution:

[0009] The positioning device includes a protrusion, the outer surface of which is fixedly connected to a connecting block, a fixed shaft fixedly connected to the inner side of the protrusion, an outer shaft rotatably connected to the outer arc surface of the fixed shaft, and a locking rod fixedly connected to the outer arc surface of the outer shaft.

[0010] As a further description of the above technical solution:

[0011] A threaded block is threadedly connected to the outer arc surface of the reciprocating lead screw, an annular groove is provided on the outer arc surface of the water tank, and a handle is fixedly connected to the outer arc surface of the water tank.

[0012] As a further description of the above technical solution:

[0013] The water tank has through holes at its upper end and lower end of its outer arc surface. The water tank is connected to the hose. The connecting block has through holes at its upper end. The connecting block is hollow as a whole.

[0014] As a further description of the above technical solution:

[0015] The connecting block is filled with water-retaining cotton strips, and multiple sets of through holes are opened on the outer arc surface of the connecting block. The inner arc surface of the threaded block is provided with threads that match the reciprocating lead screw.

[0016] As a further description of the above technical solution:

[0017] A circular groove is provided at the center of the inner surface of the protrusion, and the fixed shaft and the outer shaft are elastically connected by a spiral spring.

[0018] As a further description of the above technical solution:

[0019] The lower end of the lever has an inclined protrusion, the outer arc surface of the connecting block has a rectangular slot, and the upper part of the outer arc surface of the cleaning cotton has a rectangular through hole.

[0020] As a further description of the above technical solution:

[0021] The positioning device is provided in multiple sets, and the multiple sets of positioning devices are distributed in a circular array with the center of the connecting block as the array center.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the water tank, water inlet, hose, connecting block, threaded block and slide rail are designed so that the water in the water tank can flow through the hose to the water storage cotton strip inside the connecting block under the effect of the communicating vessel principle, and then be transmitted to the cleaning cotton through capillary action, thereby avoiding the accumulation of dirt caused by a large amount of water remaining inside the rotor hole during the traditional water-dipped cleaning process.

[0024] 2. In this utility model, by setting a locking rod, a fixed shaft, an outer shaft, and a protrusion, when different rotor holes need to be cleaned, the limiting of the cleaning cotton can be quickly released by pressing the locking rod, and the cleaning cotton can be replaced quickly. This avoids cross-contamination caused by reusing the same cleaning cotton, and also significantly reduces the time consumed when replacing the cleaning cotton, thus improving work efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a cleaning device for a centrifuge proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of an immersion cleaning device for a centrifuge cleaning apparatus proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the connecting block of a cleaning device for a centrifuge proposed in this utility model;

[0028] Figure 4 This is an exploded view of the threaded block of a cleaning device for a centrifuge proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the outer shaft section of a cleaning device for a centrifuge proposed in this utility model.

[0030] Legend:

[0031] 1. Handle; 2. Immersion cleaning device; 3. Positioning device; 4. Motor; 5. Cleaning cotton; 6. Reciprocating lead screw; 201. Water tank; 202. Water inlet; 203. Hose; 204. Connecting block; 205. Threaded block; 206. Slide rail; 301. Locking rod; 302. Fixed shaft; 303. Outer shaft; 304. Protrusion. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1 - Figure 3 An embodiment of this utility model is provided: a cleaning device for a centrifuge, including a motor 4, a reciprocating lead screw 6 fixedly connected to the output shaft of the motor 4, an immersion cleaning device 2 provided on the outer arc surface of the reciprocating lead screw 6 for cleaning the rotor hole inside the centrifuge, and a positioning device 3 provided on the outer side of the immersion cleaning device 2 for limiting the position of the cleaning cotton 5.

[0034] Reference Figure 2 - Figure 4 The immersion cleaning device 2 includes a water tank 201, which stores water to avoid frequent water contact when cleaning the rotor holes. The lower surface of the water tank 201 is fixedly connected to the motor 4, and the upper end of the water tank 201 is fixedly connected to a water inlet 202. Therefore, when the water level inside the water tank 201 is insufficient, water can be added to the water tank 201 through the water inlet 202. A flexible hose 203 is fixedly connected to the lower part of the outer arc surface of the water tank 201. Through the flexible hose 203, water in the water tank 201 can be transferred to the water-retaining cotton strip below. The flexible hose 203 is far from the water tank 201. A connecting block 204 is fixedly connected to one end of the water tank 201. A threaded block 205 is fixedly connected to the inner arc surface of the connecting block 204. Therefore, when the motor 4 drives the reciprocating screw 6 to rotate, the threaded block 205 can synchronously drive the connecting block 204 to move up and down, thereby achieving the effect of wiping and cleaning the rotor hole inside the centrifuge. A slide rail 206 is fixedly connected to the lower part of the outer arc surface of the water tank 201. The slide rail 206 is slidably connected to the connecting block 204, thereby limiting the movement trajectory of the connecting block 204 and ensuring that it can only move up and down in the vertical plane.

[0035] A threaded block 205 is threadedly connected to the outer arc surface of the reciprocating screw 6. An annular groove is formed on the outer arc surface of the water tank 201 to accommodate the handle 1. The handle 1 is fixedly connected to the outer arc surface of the water tank 201. Through holes are formed at the upper end and lower end of the outer arc surface of the water tank 201, respectively for connecting the water inlet 202 and the hose 203. The water tank 201 and the hose 203 are connected. A through hole is formed at the upper end of the connecting block 204. The connecting block 204 is hollow. The part is filled with a water-retaining cotton strip, which is a mixture of synthetic fibers and cotton. Therefore, it can store water after absorbing water. Multiple sets of through holes are opened on the outer arc surface of the connecting block 204, so that the water-retaining cotton strip can come into contact with the cleaning cotton 5. The contact between the two forms a capillary effect, and the water is slowly transported to the cleaning cotton 5 through the capillary effect, avoiding a large amount of water remaining in the rotor hole of the centrifuge during the water-dipped cleaning process. The inner arc surface of the threaded block 205 is provided with a thread that matches the reciprocating lead screw 6.

[0036] Reference Figure 1 as well as Figure 5 The positioning device 3 includes a protrusion 304, the outer surface of which is fixedly connected to the connecting block 204, a fixed shaft 302 is fixedly connected to the inner side of the protrusion 304, an outer shaft 303 is rotatably connected to the outer arc surface of the fixed shaft 302, and a locking rod 301 is fixedly connected to the outer arc surface of the outer shaft 303.

[0037] A circular groove is provided at the center of the inner surface of the protrusion 304 to accommodate the outer shaft 303 located inside it. The protrusion 304 is rotatably connected to the outer shaft 303. The fixed shaft 302 is elastically connected to the outer shaft 303 by a spiral spring. Therefore, the elastic force of the spiral spring can make the lower end of the locking rod 301 always have a force to rotate towards the connecting block 204, thereby forming a locking action on the cleaning cotton 5. The lower end of the locking rod 301 is provided with an inclined protrusion. A rectangular slot is provided on the outer arc surface of the connecting block 204, so that the locking rod 301 can be inserted. A rectangular through hole is provided on the upper part of the outer arc surface of the cleaning cotton 5, so that the locking rod 301 can be inserted. Multiple sets of positioning devices 3 are provided, and the multiple sets of positioning devices 3 are arranged in a circular array with the center of the connecting block 204 as the array center.

[0038] Working principle: When using this device, an appropriate amount of water needs to be injected into the water tank 201 through the water inlet 202. At this time, the water in the water tank 201 will flow down through the hose 203 to the inside of the connecting block 204. The water-retaining cotton strip inside the connecting block 204 will absorb the water and form a capillary effect between the through hole on the outer arc surface of the connecting block 204 and the cleaning cotton 5. Under the influence of capillary effect, the water will be slowly transferred to the inside of the cleaning cotton, thereby avoiding a large amount of water remaining in the centrifuge rotor hole when cleaning with water. At the same time, the motor 4 needs to be started. When the motor 4 is running, it will drive the reciprocating screw 6 to rotate continuously and push the threaded block 205 to reciprocate continuously in the vertical plane. At this time, this device can be inserted into the rotor hole, and the cleaning cotton 5 will be used to wipe and clean the inside of the rotor hole.

[0039] When it is necessary to clean the inside of different rotor holes, in order to avoid cross-contamination, the clamp 301 can be pulled outward to release the restriction on the cleaning cotton 5. The cleaning cotton 5 can then be pulled out and replaced with a new cleaning cotton 5 to the outside of the connecting block 204. After replacement, the clamp 301 can be released so that it rotates due to the elasticity of the spiral spring and is reinserted into the slot, thus completing the restriction on the newly replaced cleaning cotton 5.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning device for a centrifuge, comprising a motor (4), characterized in that: A reciprocating lead screw (6) is fixedly connected to the output shaft of the motor (4). An immersion cleaning device (2) is provided on the outer arc surface of the reciprocating lead screw (6) for cleaning the rotor hole inside the centrifuge. A positioning device (3) is provided on the outside of the immersion cleaning device (2) for limiting the position of the cleaning cotton (5). The immersion cleaning device (2) includes a water tank (201), the lower surface of which is fixedly connected to a motor (4), the upper end of which is fixedly connected to a water inlet (202), the lower part of the outer arc surface of which is fixedly connected to a hose (203), the end of which is away from the water tank (201) is fixedly connected to a connecting block (204), the inner arc surface of which is fixedly connected to a threaded block (205), and the lower part of the outer arc surface of which is fixedly connected to a slide rail (206), which is slidably connected to the connecting block (204).

2. The centrifuge cleaning device according to claim 1, characterized in that: The positioning device (3) includes a protrusion (304), the outer surface of which is fixedly connected to the connecting block (204), a fixed shaft (302) is fixedly connected to the inner side of the protrusion (304), an outer shaft (303) is rotatably connected to the outer arc surface of the fixed shaft (302), and a locking rod (301) is fixedly connected to the outer arc surface of the outer shaft (303).

3. A centrifuge cleaning device according to claim 1, characterized in that: The reciprocating screw (6) is threaded with a threaded block (205) on its outer arc surface, and the water tank (201) has an annular groove on its outer arc surface. The water tank (201) is fixedly connected with a handle (1) on its outer arc surface.

4. A centrifuge cleaning device according to claim 1, characterized in that: The water tank (201) has a through hole at the upper end and the lower end of the outer arc surface. The water tank (201) is connected to the hose (203). The connecting block (204) has a through hole at the upper end. The connecting block (204) is hollow in its entirety.

5. A centrifuge cleaning device according to claim 1, characterized in that: The connecting block (204) is filled with water-retaining cotton strips. Multiple sets of through holes are opened on the outer arc surface of the connecting block (204). The inner arc surface of the threaded block (205) is provided with threads that match the reciprocating lead screw (6).

6. A centrifuge cleaning device according to claim 2, characterized in that: A circular groove is provided at the center of the inner surface of the protrusion (304), and the fixed shaft (302) and the outer shaft (303) are elastically connected by a spiral spring.

7. A centrifuge cleaning device according to claim 2, characterized in that: The lower end of the lever (301) is provided with an inclined protrusion, the outer arc surface of the connecting block (204) is provided with a rectangular slot, and the upper part of the outer arc surface of the cleaning cotton (5) is provided with a rectangular through hole.

8. A centrifuge cleaning device according to claim 2, characterized in that: The positioning device (3) is provided in multiple sets, and the multiple sets of positioning devices (3) are arranged in a circular array with the center of the connecting block (204) as the array center.

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