阅读说明：本技术 一种自动化抽吸装置 (Automatic change suction device ) 是由 吴文明 林承雄 王耀程 黄正宇 姜杨阳 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种自动化抽吸装置,包括：机架；移液枪,固定设置在机架上,移液枪上设有按钮,按钮具有通过旋转改变移液量程的第一功能,还具有通过平移吸液和排液的第二功能；第一驱动机构,可滑动地设置在机架上,第一驱动机构与按钮固定连接,第一驱动机构用于驱动按钮旋转；第二驱动机构,设置在机架上,用于驱动第一驱动机构和按钮同步平移；控制系统,用于分别控制第一驱动机构和第二驱动机构。将移液枪固定在机架上,通过第一驱动机构旋转按钮实现吸取液体的体积可控,通过第二驱动机构按压按钮以实现吸液和排液,通过控制系统调节预处理的体积大小并进行相关的移液操作,实现了自动化、精准化地移液,极大降低了移液器成本。(The invention discloses an automatic suction device, which comprises: a frame; the liquid transferring gun is fixedly arranged on the rack, a button is arranged on the liquid transferring gun, and the button has a first function of changing the liquid transferring range through rotation and also has a second function of absorbing liquid and discharging liquid through translation; the first driving mechanism is arranged on the rack in a sliding mode and fixedly connected with the button, and the first driving mechanism is used for driving the button to rotate; the second driving mechanism is arranged on the rack and used for driving the first driving mechanism and the button to synchronously translate; and the control system is used for respectively controlling the first driving mechanism and the second driving mechanism. Fix the pipette in the frame, it is controllable to realize absorbing the volume of liquid through first actuating mechanism rotating button, presses down the button through second actuating mechanism in order to realize imbibition and flowing back, adjusts the volume size of preliminary treatment and carries out relevant liquid removal operation through control system, has realized that automation, precision ground move the liquid, has greatly reduced pipettor cost.)

1. An automated suctioning device, comprising:

a frame;

the liquid-transferring gun is fixedly arranged on the rack, a button is arranged on the liquid-transferring gun, the button has a first function of changing the liquid-transferring range of the liquid-transferring gun through rotation, and the button also has a second function of driving the liquid-transferring gun to absorb and discharge liquid through translation;

the first driving mechanism is arranged on the rack in a sliding mode and fixedly connected with the button, and the first driving mechanism is used for driving the button to rotate;

the second driving mechanism is arranged on the rack, acts on the first driving mechanism, and is used for driving the first driving mechanism and the button to synchronously translate;

and the control system is used for respectively controlling the first driving mechanism and the second driving mechanism.

2. The automated suctioning device according to claim 1, wherein: also comprises

The first sliding block is slidably arranged on the rack, the first driving mechanism is fixedly arranged on the first sliding block, and when the first driving mechanism drives the button to rotate, the first sliding block has a first state relatively close to the button;

the second sliding block is slidably arranged on the rack, and the second driving mechanism is used for driving the second sliding block to enable the second sliding block to have a first locking working condition and a second sliding working condition;

when the first driving mechanism drives the button to rotate, the second driving mechanism drives the second sliding block to lock;

when the first driving mechanism stops driving the button, the second driving mechanism drives the second sliding block to slide, so that the second sliding block, the first sliding block and the button synchronously move;

and one end of the elastic component is connected with the first sliding block, and the other end of the elastic component is connected with the second sliding block, so that the first sliding block and the second sliding block have a tendency of approaching to each other.

3. The automated suctioning device according to claim 2, wherein: the frame is provided with a slide bar assembly, the slide bar assembly and the liquid-transfering gun are arranged in parallel, and the first sliding block is slidably arranged on the slide bar assembly.

4. The automated suctioning device according to claim 3, wherein: the rack is provided with a screw rod assembly, the screw rod assembly and the second sliding block form a screw rod mechanism, and the second driving mechanism drives the second sliding block through the screw rod assembly.

5. The automated suctioning device according to claim 4, wherein: the sliding rod assembly and the screw rod assembly are arranged in parallel at intervals, and the first sliding block and the second sliding block are arranged on the sliding rod assembly and the screw rod assembly in a sliding mode.

6. The automated suctioning device according to claim 2, wherein: the first sliding block comprises a block body and a protruding portion, one end of the protruding portion is arranged on the block body, the other end of the protruding portion protrudes outwards and is used for being abutted to the second sliding block, the first driving mechanism is arranged on the protruding portion, an interval exists between the block body and the second sliding block, and the elastic component is arranged in the interval.

7. The automated suctioning device according to claim 1, wherein: the button fixing device is characterized by further comprising a fixing piece, one end of the fixing piece is connected with the output end of the first driving mechanism, a fixing position matched with the button is arranged at the other end of the fixing piece, and the fixing piece is fixedly connected with the button.

Technical Field

The invention relates to the technical field of medical instruments, in particular to an automatic suction device.

Background

Pipettor is often used for moving of a small amount of or trace liquid in laboratory and gets, to the pipette gun, all move the liquid and all need manual operation, can't realize automatic getting liquid, and the operation is not accurate enough, and is also not convenient enough.

Disclosure of Invention

The present invention has been made to solve at least one of the problems of the prior art, and an object of the present invention is to provide an automated aspiration device capable of performing pipetting with high accuracy.

According to a first aspect embodiment of the present invention, there is provided an automated suction device comprising:

a frame;

the liquid-transferring gun is fixedly arranged on the rack, a button is arranged on the liquid-transferring gun, the button has a first function of changing the liquid-transferring range of the liquid-transferring gun through rotation, and the button also has a second function of driving the liquid-transferring gun to absorb and discharge liquid through translation;

the first driving mechanism is arranged on the rack in a sliding mode and fixedly connected with the button, and the first driving mechanism is used for driving the button to rotate;

the second driving mechanism is arranged on the rack, acts on the first driving mechanism, and is used for driving the first driving mechanism and the button to synchronously translate;

and the control system is used for respectively controlling the first driving mechanism and the second driving mechanism.

Has the advantages that: this automatic suction device fixes the pipette in the frame, and it is controllable to realize absorbing the volume of liquid through first actuating mechanism rotating button, presses down the button through second actuating mechanism in order to realize imbibition and flowing back, adjusts the size of the volume of preliminary treatment and carries out relevant liquid-moving operation through control system, has realized that automation, precision ground move the liquid, has greatly reduced the pipettor cost.

The automated suction device according to the embodiment of the first aspect of the present invention, further comprising

The first sliding block is slidably arranged on the rack, the first driving mechanism is fixedly arranged on the first sliding block, and when the first driving mechanism drives the button to rotate, the first sliding block has a first state relatively close to the button;

the second sliding block is slidably arranged on the rack, and the second driving mechanism is used for driving the second sliding block to enable the second sliding block to have a first locking working condition and a second sliding working condition;

when the first driving mechanism drives the button to rotate, the second driving mechanism drives the second sliding block to lock;

when the first driving mechanism stops driving the button, the second driving mechanism drives the second sliding block to slide, so that the second sliding block, the first sliding block and the button synchronously move;

and one end of the elastic component is connected with the first sliding block, and the other end of the elastic component is connected with the second sliding block, so that the first sliding block and the second sliding block have a tendency of approaching to each other.

According to the automatic suction device provided by the embodiment of the first aspect of the invention, the rack is provided with a slide bar assembly, the slide bar assembly and the liquid-transfering gun are arranged in parallel, and the first sliding block is slidably arranged on the slide bar assembly.

According to the automatic suction device in the embodiment of the first aspect of the present invention, the frame is provided with a screw rod assembly, the screw rod assembly and the second slide block form a screw rod mechanism, and the second driving mechanism drives the second slide block through the screw rod assembly.

According to the automatic suction device, the slide bar assembly and the screw rod assembly are arranged in parallel at intervals, and the first sliding block and the second sliding block are arranged on the slide bar assembly and the screw rod assembly in a sliding mode.

According to the automatic suction device of the embodiment of the first aspect of the present invention, the first slider includes a block and a protrusion, one end of the protrusion is provided on the block, the other end of the protrusion protrudes outward for abutting against the second slider, the first driving mechanism is provided on the protrusion, a space exists between the block and the second slider, and the elastic member is provided in the space.

The automatic suction device according to the embodiment of the first aspect of the present invention further includes a fixing member, one end of the fixing member is connected to the output end of the first driving mechanism, a fixing position adapted to the button is disposed on the other end of the fixing member, and the fixing member is fixedly connected to the button through the fixing position.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, an automated suctioning device includes: a frame, a pipette gun 60, a first drive mechanism 10, a second drive mechanism 20, and a control system. Wherein the frame is used as a bearing platform; the liquid-transferring gun 60 is fixedly arranged on the rack, a button 61 is arranged on the liquid-transferring gun 60, the button 61 has a first function of changing the liquid-transferring range of the liquid-transferring gun 60 through rotation, and the button 61 also has a second function of driving the liquid-transferring gun 60 to suck liquid and discharge liquid through translation; the first driving mechanism 10 is slidably disposed on the frame, the first driving mechanism 10 is fixedly connected with the button 61, and the first driving mechanism 10 is used for driving the button 61 to rotate; the second driving mechanism 20 is arranged on the rack, and the second driving mechanism 20 acts on the first driving mechanism 10 and is used for driving the first driving mechanism 10 and the button 61 to synchronously translate; and a control system for controlling the first drive mechanism 10 and the second drive mechanism 20, respectively. This automatic suction device fixes pipette 60 in the frame, and it is controllable to realize absorbing the volume of liquid through first actuating mechanism 10 swivel button 61, presses button 61 through second actuating mechanism 20 in order to realize imbibition and flowing back, adjusts the size of the volume of preliminary treatment and carries out relevant liquid removal operation through control system, has realized that automation, accurate ground move the liquid, has greatly reduced pipettor cost.

Preferably, the device further comprises a first slider 70, a second slider 80 and an elastic member 90, wherein the first slider 70 is slidably disposed on the frame, the first driving mechanism 10 is fixedly disposed on the first slider 70, and when the first driving mechanism 10 drives the button 61 to rotate, the first slider 70 has a first state relatively close to the button 61; the second sliding block 80 is slidably arranged on the rack, and the second driving mechanism 20 is used for driving the second sliding block 80, so that the second sliding block 80 has a first working condition of locking and a second working condition of sliding; when the first driving mechanism 10 drives the button 61 to rotate, the second driving mechanism 20 drives the second sliding block 80 to lock; when the first driving mechanism 10 stops driving the button 61, the second driving mechanism 20 drives the second slider 80 to slide, so that the second slider 80, the first slider 70 and the button 61 synchronously move; and the elastic component 90, one end of the elastic component 90 is connected with the first slide block 70, and the other end of the elastic component 90 is connected with the second slide block 80, so that the first slide block 70 and the second slide block 80 have the tendency of approaching to each other. Specifically, when the pipetting range of the pipetting gun 60 of some models is adjusted by the button 61, the button 61 can synchronously slide along with the change of the pipetting range to correspond to the corresponding range, and since the second slide block 80 is locked when the first driving mechanism 10 drives the button 61 to rotate, the independence of the first driving mechanism 10 and the second driving mechanism 20 in the operation process is realized by arranging the first slide block 70, the second slide block 80 and the elastic component 90, and the preset function is achieved. The first driving mechanism 10 and the second driving mechanism 20 are both motors, and the elastic member 90 is a spring.

Further, when the first driving mechanism 10 works to rotate the button 61, the stroke of the pipette 60 is changed, the button 61 can move in a translation manner while the stroke is changed, because the pipette 60 is fixed on the frame, the translation acting force is reacted on the first driving mechanism 10, the first driving mechanism 10 is arranged on the first slider 70, the first slider 70 and the button 61 can move in a translation manner synchronously, because the second slider 80 is used for sucking and discharging liquid, the second slider 80 is locked at the moment, after the preset liquid suction volume is determined, the first driving mechanism 10 is closed, the second driving mechanism 20 is used for driving the second slider 80, the second slider 80 abuts against the first slider 70 after moving for a certain distance, the first slider 70 and the second slider 80 move continuously to realize the liquid sucking and discharging liquid, after the liquid sucking and discharging liquid are finished, the second driving mechanism 20 drives the second slider 80 to reset, the first slider 70 is reset by the elastic member 90 until it comes into contact with the second slider 80 again, and since the first driving mechanism 10 does not operate again after the preset suction volume is determined, the preset suction volume value can be obtained by converting the operating parameters of the first driving mechanism 10.

Preferably, a sliding rod assembly 30 is arranged on the machine frame, the sliding rod assembly 30 and the pipette gun 60 are arranged in parallel, and the first sliding block 70 is slidably arranged on the sliding rod assembly 30. The sliding rod assembly 30 is used as a motion guide of the first sliding block 70, so that the reasonable design of the structure is ensured.

Preferably, the rack is provided with a screw rod assembly 40, the screw rod assembly 40 and the second sliding block 80 form a screw rod mechanism, and the second driving mechanism 20 drives the second sliding block 80 through the screw rod assembly. The lead screw assembly 40 and the second slider 80 form a lead screw mechanism, so that the accuracy of liquid suction and liquid discharge is ensured, and meanwhile, the second slider 80 can more stably push the first slider 70.

Preferably, the slide bar assembly 30 and the lead screw assembly 40 are spaced apart from each other and arranged in parallel, and the first slider 70 and the second slider 80 are slidably arranged on the slide bar assembly 30 and the lead screw assembly 40. The screw rod assembly 40 penetrates through the first sliding block 70, so that the overall structural arrangement is more reasonable, the overall size is reduced, and the screw rod assembly 40 does not act on the first sliding block 70; the slide rod assembly 30 is disposed through the second slider 80 to provide a motion guide for the second slider 80, so that the relative force between the second slider 80 and the first slider 70 is more stable.

Preferably, the first slider 70 includes a block 72 and a protrusion 71, one end of the protrusion 71 is disposed on the block 72, the other end of the protrusion 71 protrudes outward for abutting against the second slider 80, the first driving mechanism 10 is disposed on the protrusion 71, a space is present between the block 72 and the second slider 80, and the elastic member 90 is disposed in the space. The projection 71 is disposed on the top end of the block 72 in a boss shape, the elastic member 90 is disposed below the projection 71, and the projection 71 is used to carry the first drive mechanism 10 and abut against the second slider 80 while providing a space for installation of the elastic member 90.

Preferably, the liquid suction and drainage device further comprises a fixing piece 50, one end of the fixing piece 50 is connected with the output end of the first driving mechanism 10, a fixing position matched with the button 61 is arranged at the other end of the fixing piece 50, and the fixing piece 50 is fixedly connected with the button 61 through the fixing position, so that the first sliding block 70 and the button 61 can synchronously translate when the measuring range is adjusted and liquid suction and drainage are carried out.

This automatic suction device can all adjust the volume size of preliminary treatment through control system before the liquid is pipetted at every turn, has realized the automation mechanized operation of accurate liquid removal, compares in the electronic liquid removal rifle on the market, not only can guarantee higher precision, still very big reduction the price of automatic pipettor, this provides new thinking to the design of automatic pipettor, has important meaning.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.