Hidden waste liquid collecting device for centrifugal machine

Abstract

The invention relates to the technical field of centrifugal machines, in particular to a hidden waste liquid collecting device for a centrifugal machine, which is characterized in that after a cell smear device is centrifuged by the centrifugal machine, a pipettor is driven by a manipulator to suck waste liquid in the cell smear device; then the pipettor is driven by the mechanical arm to transfer the sucked waste liquid into the liquid passing cylinder, the waste liquid flows into the collecting mechanism located below the liquid passing cylinder through the liquid passing cylinder, and finally the waste liquid is collected through the collecting mechanism; the cell smear device and the liquid passing cylinder are both located on the rotary table of the centrifugal machine, so that the reciprocating time and stroke of the mechanical arm are greatly shortened, the operation procedures are further simplified, and the space utilization rate of centrifugal machine equipment application is improved.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuges, and more particularly to a hidden waste liquid collecting device for centrifuges. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate liquids from solid particles or components in a mixture of liquids and liquids. Centrifuges are mainly used to separate solid particles from liquids in suspensions, or to separate two immiscible liquids of different densities in emulsions (e.g., separating cream from milk); they can also be used to remove liquids from wet solids, such as using a washing machine to spin dry wet clothes; special ultra-speed tubular separators can also separate gas mixtures of different densities; some sedimentation centrifuges can also classify solid particles by density or size, taking advantage of the fact that solid particles of different densities or sizes have different sedimentation speeds in liquids.

[0003] In the cell staining process, the cell stock solution is placed in a cell smear apparatus for centrifugal staining. Before staining with the staining solution, the waste liquid after centrifugation needs to be sucked out first, and then the staining solution is injected into the cell smear apparatus in turn for staining to complete the final slide preparation.

[0004] Among them, for the aspiration of waste liquid and the injection of staining liquid, in order to speed up the progress of the cell staining process, currently, automated operations are basically adopted to replace manual operations. After the centrifuge completes the centrifugal operation, the pipette is driven by a robot to insert the cell smear to complete the aspiration of waste liquid. For example, the patent number is and the patent name is a patent. However, due to the continuous operation of the staining process, it is necessary to repeat the step of aspirating waste liquid for different cell smears that have completed centrifugation in the centrifuge. For this reason, after aspirating the last waste liquid, the waste liquid needs to be extracted from the pipette, so as to facilitate the aspiration of waste liquid for the next cell smear.

[0005] Conventional waste liquid collection is completed by the waste liquid collection bucket on the workbench, and the pipette is moved back and forth between the cell smear and the pipette by a robot. However, due to the complicated operation of the cell staining process, the installation of the waste liquid collection bucket and the distance of the robot's moving stroke undoubtedly increase the space occupied by the cell staining equipment, resulting in a variety of problems such as complicated staining procedures and large space occupied by the staining equipment. Summary of the invention

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a hidden waste liquid collection device for a centrifuge, which greatly shortens the reciprocating time and stroke of the manipulator, further simplifies the operating procedures, and improves the space utilization rate of the centrifuge equipment application.

[0007] The above technical purpose of the present invention is achieved through the following technical solutions: a hidden waste liquid collection device for a centrifuge, comprising a centrifuge, a plurality of liquid cylinders arranged on a centrifuge turntable, and a collecting mechanism installed on a centrifuge base, wherein the waste liquid sucked by the liquid cylinders is circulated, and the collecting mechanism is located below the liquid cylinders to carry the waste liquid sucked and collected.

[0008] Preferably, the collecting mechanism comprises a casing mounted on the centrifuge base, a collecting bucket for collecting waste liquid is formed between the centrifuge base and the casing, and a flow hole for the waste liquid to flow is opened on one side of the collecting bucket;

[0009] Preferably, the centrifuge base is arranged at an inclined angle, and the flow hole is located below the inclined angle of the centrifuge base.

[0010] Preferably, the collecting mechanism comprises a collecting cylinder arranged on the centrifuge base, the collecting cylinder is arranged in a one-to-one correspondence with the liquid-passing cylinder, and the waste liquid is received by the collecting cylinder.

[0011] Preferably, the collecting cylinder is connected to a suction device, through which the collected waste liquid is centrally processed, and the suction device is installed at the bottom of the centrifuge.

[0012] Preferably, the suction device includes a waste liquid barrel and a water pump connected between the collecting cylinder and the waste liquid barrel, and the waste liquid in the collecting cylinder is sucked into the waste liquid barrel by the water pump for centralized collection.

[0013] Preferably, a temporary storage barrel for temporarily storing waste liquid is provided between the collection mechanism and the waste liquid barrel, the temporary storage barrel forms a negative pressure state by being connected to a negative pressure pump, and an electromagnetic valve is provided between the temporary storage barrel and the collection cylinder, the temporary storage barrel and the collection cylinder are connected and disconnected by the electromagnetic valve, and the negative pressure of the temporary storage barrel is used to suck the waste liquid in the collection cylinder.

[0014] Preferably, the liquid cylinder is funnel-shaped.

[0015] Preferably, the plurality of liquid transfer cylinders are evenly distributed on the centrifuge turntable, and the distance between adjacent liquid transfer cylinders is equal to the distance between adjacent cell smear devices on the centrifuge turntable.

[0016] In summary, the present invention has the beneficial effects that after the centrifuge completes the centrifugation process of the cell smear device, the manipulator drives the pipette to suck the waste liquid in the cell smear device, and then the manipulator drives the pipette to transfer the sucked waste liquid to the liquid transfer cylinder, the waste liquid flows into the collecting mechanism located below the liquid transfer cylinder, and finally is collected by the collecting mechanism. By hiding the collecting cylinder in the centrifuge and coordinating the rotation of the centrifuge turntable, the waste liquid is recovered. Since the cell smear device and the liquid transfer cylinder are both located on the turntable of the centrifuge, the reciprocating time and stroke of the manipulator are greatly shortened, the operation process is further simplified, and the space utilization rate of the centrifuge equipment application is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall connection diagram of Embodiment 1 of the present invention;

[0018] Figure 2 Schematic diagram of the internal structure of a centrifuge according to Embodiment 1 of the present invention;

[0019] Figure 3 It is a cross-sectional view of the collecting barrel of the second embodiment of the present invention.

[0020] Figure numerals: 1, centrifuge; 11, liquid cylinder; 12, collecting cylinder; 13, centrifuge base; 14, centrifuge turntable; 2, suction device; 21, waste liquid barrel; 22, water pump; 23, temporary storage barrel; 3, casing; 31, collecting barrel; 32, circulation hole. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0023] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] Embodiment 1: A hidden waste liquid collection device for a centrifuge 1, see Figure 1 and Figure 2 , including a centrifuge 1, a plurality of liquid cylinders 11 arranged on the turntable of the centrifuge 1, and a collecting cylinder 12 installed on the base of the centrifuge 1. The liquid cylinders 11 are used to circulate the sucked waste liquid, and the collecting cylinder 12 is located below the liquid cylinders 11 to carry and collect the sucked waste liquid.

[0026] When the present embodiment is implemented, after the centrifuge 1 completes the centrifugation process of the cell smear, the manipulator drives the pipette to suck the waste liquid in the cell smear, and then the manipulator drives the pipette to transfer the sucked waste liquid to the liquid cylinder 11. The waste liquid flows through the liquid cylinder 11 to the collecting cylinder 12 located below it, and finally is collected by the collecting cylinder 12. By hiding the collecting cylinder 12 in the centrifuge 1 and cooperating with the rotation of the turntable of the centrifuge 1, the waste liquid is recovered. Since the cell smear and the liquid cylinder 11 are both located on the turntable of the centrifuge 1, the reciprocating time and stroke of the manipulator are greatly shortened, the operation process is further simplified, and the space utilization rate of the centrifuge 1 equipment application is improved.

[0027] Specifically, the collecting cylinder 12 is connected to a suction device 2 , through which the collected waste liquid is centrally processed. The suction device 2 is installed at the bottom of the centrifuge 1 .

[0028] The waste liquid in the bottom collecting cylinder 12 is collected by the suction device 2 for centralized treatment.

[0029] Specifically, the suction device 2 includes a waste liquid barrel 21 and a water pump 22 connected between the collecting barrel 12 and the waste liquid barrel 21. The waste liquid in the collecting barrel 12 is sucked into the waste liquid barrel 21 by the water pump 22 for centralized collection.

[0030] The waste liquid in the collection tube 12 is transferred to the waste liquid barrel 21 for centralized collection by the water pump 22, and then the waste liquid barrel 21 is moved.

[0031] Specifically, a temporary storage barrel 23 for temporarily storing waste liquid is provided between the collecting barrel 12 and the waste liquid barrel 21. The temporary storage barrel 23 forms a negative pressure state by being connected to a negative pressure pump. An electromagnetic valve is provided between the temporary storage barrel 23 and the collecting barrel 12. The electromagnetic valve realizes the connection and disconnection between the temporary storage barrel 23 and the collecting barrel 12, and at the same time, the negative pressure of the temporary storage barrel 23 is used to absorb the waste liquid in the collecting barrel 12.

[0032] Negative pressure is continuously formed through the temporary storage barrel 23, and the electromagnetic valve is used to realize the connection and disconnection between the temporary storage barrel 23 and the collecting barrel 12, so that the waste liquid in the collecting barrel 12 can be circulated quickly.

[0033] The temporary storage barrel 23 is provided with an air release hole, through which air pressure balance is performed, and then the waste liquid in the temporary storage barrel 23 is transferred by the water pump 22.

[0034] Specifically, the liquid cylinder 11 is funnel-shaped, which is convenient for waste liquid collection and circulation.

[0035] Specifically, the plurality of liquid transfer cylinders 11 are evenly distributed on the turntable of the centrifuge 1 , and the distance between adjacent liquid transfer cylinders 11 is equal to the distance between adjacent cell smear devices on the turntable of the centrifuge 1 .

[0036] In this embodiment, a liquid cylinder 11 is arranged between adjacent cell smearers. After the pipette sucks the waste liquid, the turntable of the centrifuge 1 rotates so that the liquid cylinder 11 and the pipette are aligned, and the waste liquid is injected into the liquid cylinder 11, and the process is performed alternately. Since the turntable of the centrifuge 1 is rotating, the conventional centrifuge 1 cannot be used to circulate the waste liquid. In this embodiment, the liquid cylinder 11 is installed on the turntable of the centrifuge 1 through the reciprocating rotation of the turntable of the centrifuge 1, and the waste liquid is extracted through the collection cylinder 12 and the suction device 2 in cooperation with the movement of the pipette by the manipulator, and then hidden at the bottom of the centrifuge 1, which greatly reduces the space occupied by the waste liquid collection device on the plane.

[0037] Embodiment 2: A hidden waste liquid collection device for a centrifuge 1, see Figure 3 The difference between this embodiment and the first embodiment is that a casing 3 is provided on the base of the centrifuge 1, and a collection bucket 31 for collecting waste liquid is formed between the base of the centrifuge 1 and the casing 3, and a flow hole 32 for the waste liquid to flow is opened on one side of the collection bucket 31.

[0038] The waste liquids flowing in through the plurality of liquid cylinders 11 are collected uniformly through the collecting barrel 31 , and then flow out through the flow holes 32 .

[0039] In order to facilitate the drainage of waste liquid, the base of the centrifuge 1 is arranged at an inclined angle, and the flow hole 32 is located below the inclined angle of the base of the centrifuge 1.

[0040] The rest of this embodiment is the same as the first embodiment. The features not explained in this embodiment are all based on the explanations in the first embodiment and will not be described in detail here.

[0041] The above embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A hidden waste liquid collection device for a centrifuge, characterized in that: The invention comprises a centrifuge, a plurality of liquid-passing cylinders arranged on a rotating table of the centrifuge and a collecting mechanism installed on a base of the centrifuge. The liquid-passing cylinders are used to circulate the sucked waste liquid. The collecting mechanism is located below the liquid-passing cylinders to carry and collect the sucked waste liquid.

2. The hidden waste liquid collection device for a centrifuge according to claim 1, characterized in that: The collecting mechanism comprises a casing sleeved on the centrifuge base, a collecting bucket for collecting waste liquid is formed between the centrifuge base and the casing, and a flow hole for the waste liquid to flow is opened on one side of the collecting bucket.

3. A hidden waste liquid collection device for a centrifuge according to claim 2, characterized in that: The centrifuge base is arranged at an inclined angle, and the flow hole is located below the inclined angle of the centrifuge base.

4. The hidden waste liquid collection device for a centrifuge according to claim 1, characterized in that: The collecting mechanism comprises a collecting cylinder arranged on the centrifuge base, the collecting cylinder is arranged in one-to-one correspondence with the liquid-passing cylinder, and the waste liquid is received by the collecting cylinder.

5. A hidden waste liquid collection device for a centrifuge according to claim 4, characterized in that: The collecting cylinder is connected with a suction device, through which the collected waste liquid is centrally processed, and the suction device is installed at the bottom of the centrifuge.

6. A hidden waste liquid collection device for a centrifuge according to claim 5, characterized in that: The suction device comprises a waste liquid barrel and a water pump connected between the collecting cylinder and the waste liquid barrel, and the waste liquid in the collecting cylinder is sucked into the waste liquid barrel by the water pump for centralized collection.

7. The hidden waste liquid collection device for a centrifuge according to claim 1, characterized in that: A temporary storage barrel for temporarily storing waste liquid is arranged between the collection mechanism and the waste liquid barrel. The temporary storage barrel forms a negative pressure state by being connected to a negative pressure pump. An electromagnetic valve is arranged between the temporary storage barrel and the collection cylinder. The connection and disconnection between the temporary storage barrel and the collection cylinder are realized by the electromagnetic valve. At the same time, the negative pressure of the temporary storage barrel is used to suck the waste liquid in the collection cylinder.

8. The hidden waste liquid collection device for a centrifuge according to claim 1, characterized in that: The liquid-passing cylinder is in the shape of a funnel.

9. The hidden waste liquid collection device for a centrifuge according to claim 1, characterized in that: The plurality of liquid transfer cylinders are evenly distributed on the centrifuge turntable, and the distance between adjacent liquid transfer cylinders is equal to the distance between adjacent cell smear devices on the centrifuge turntable.

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