CN210974628U

CN210974628U - Liquid pumping mechanism

Info

Publication number: CN210974628U
Application number: CN201921646707.4U
Authority: CN
Inventors: 刘沐芸; 李晓智; 杜祥熙
Original assignee: Individualized Cell Therapy Technology National And Local Joint Engineering Laboratory (shenzhen); Shenzhen Saidong Biological Automation Co ltd
Current assignee: Individualized Cell Therapy Technology National And Local Joint Engineering Laboratory (shenzhen); Shenzhen Saidong Biological Automation Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-10
Anticipated expiration: 2029-09-29

Abstract

The utility model relates to a pump liquid mechanism, including mounting bracket, controller, pump liquid subassembly and liquid level detection subassembly, pump liquid unit mount is on the mounting bracket, and liquid level detection subassembly is connected on the mounting bracket, and pump liquid subassembly and liquid level detection subassembly are connected with the controller respectively. The utility model discloses a set up pump liquid subassembly and liquid level determine module, drive reciprocating of peristaltic pump and pump liquid pipe through lifting unit, the pump liquid pipe inserts in the centrifuging tube under the guide effect of guide bar, carry out the operation of pump liquid, when going into liquid to the centrifuging tube pump, liquid level determine module detects whether the liquid level in the centrifuging tube exceeds a certain threshold value, so that the controller can in time control the peristaltic pump stop work when the liquid level exceeds a certain threshold value in the centrifuging tube, avoid liquid to spill over, realize that automatic pump goes into or pump out the culture solution, and can accurately detect the liquid level in the container, in order to improve pump liquid efficiency, avoid liquid pump to go into the excess.

Description

Liquid pumping mechanism

Technical Field

The utility model relates to a pump liquid mechanism, more specifically say and indicate a pump liquid mechanism.

Background

In the cell preparation process, culture solution needs to be pumped in or out of a tank body for storing the culture solution, an operator adopts tools such as a syringe or a liquid extractor to manually extract the liquid and then inject the liquid into a specified container, the method is low in efficiency, the liquid level height in the container cannot be accurately estimated, the liquid injection is excessive, the liquid overflows, the culture environment is polluted, and the culture failure is caused.

Therefore, it is necessary to design a new mechanism to automatically pump in or out the culture solution, and accurately detect the liquid level in the container, so as to improve the efficiency of pumping liquid and avoid excessive pumping of liquid.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a pump liquid mechanism.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a pump liquid mechanism, includes mounting bracket, controller, pump liquid subassembly and liquid level detection subassembly, pump liquid subassembly connect in on the mounting bracket, liquid level detection subassembly connect in on the mounting bracket, pump liquid subassembly and liquid level detection subassembly respectively with the controller is connected.

The further technical scheme is as follows: the pump liquid subassembly includes lifting unit and a plurality of peristaltic pump, lifting unit with the mounting bracket is connected, be connected with pump liquid pipe on the peristaltic pump, the peristaltic pump pass through the peristaltic pump mounting panel connect in lifting unit is last, the peristaltic pump with the controller is connected.

The further technical scheme is as follows: the peristaltic pump mounting plate is connected with a guide rod extending downwards, a through groove is formed in the guide rod, and the pump liquid pipe is inserted in the through groove.

The further technical scheme is as follows: the upper end of the guide rod is connected with a fixed block, and the fixed block is connected with the peristaltic pump mounting plate.

The further technical scheme is as follows: the lifting assembly comprises a lifting cylinder, a cylinder connecting plate is connected to the lifting cylinder, and the cylinder connecting plate is connected with the peristaltic pump mounting plate.

The further technical scheme is as follows: the lifting cylinder is connected with the mounting frame through a cylinder connecting frame.

The further technical scheme is as follows: the liquid level detection assembly is connected with the mounting frame through an ultrasonic connecting frame.

The further technical scheme is as follows: the liquid level detection assembly comprises a plurality of ultrasonic sensors, the ultrasonic sensors are located below the peristaltic pump and connected with the ultrasonic connecting frame, and the ultrasonic sensors are connected with the controller.

The further technical scheme is as follows: the ultrasonic wave link includes first link and second link, the second link connect in the outer end of first link, first link with the mounting bracket is connected, be equipped with a plurality of jack on the second link, ultrasonic sensor inserts and establishes in the jack.

The further technical scheme is as follows: still include the centrifuging tube, the centrifuging tube pass through the mount, with the mounting bracket is connected, the centrifuging tube is located the below of guide bar, just ultrasonic sensor is located one side of centrifuging tube.

Compared with the prior art, the utility model beneficial effect be: the utility model discloses a set up pump liquid subassembly and liquid level determine module, drive reciprocating of peristaltic pump and pump liquid pipe through lifting unit, the pump liquid pipe inserts in the centrifuging tube under the guide effect of guide bar, carry out the operation of pump liquid, when going into liquid to the centrifuging tube pump, liquid level determine module detects whether the liquid level in the centrifuging tube exceeds a certain threshold value, so that the controller can in time control the peristaltic pump stop work when the liquid level exceeds a certain threshold value in the centrifuging tube, avoid liquid to spill over, realize that automatic pump goes into or pump out the culture solution, and can accurately detect the liquid level in the container, in order to improve pump liquid efficiency, avoid liquid pump to go into the excess.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic perspective view of a liquid pumping mechanism according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a liquid pumping mechanism according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and the following detailed description.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "secured" are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above should not be understood to necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

As shown in fig. 1-2, the liquid pumping mechanism provided in this embodiment can be applied to a scenario of pumping liquid into or out of a centrifugal tube 70 or a container.

Referring to fig. 1, the above-mentioned liquid pumping mechanism includes an installation frame 10, a controller, a liquid pumping assembly and a liquid level detection assembly, the liquid pumping assembly is connected to the installation frame 10, the liquid level detection assembly is connected to the installation frame 10, and the liquid pumping assembly and the liquid level detection assembly are respectively connected to the controller.

Utilize pump liquid subassembly to pump or pump into liquid in the container, in order to realize the purpose of automatic pump liquid, set up the liquid level height in the liquid level detection subassembly detection container, when the liquid level height of container surpassed a certain height, that is to say when the liquid level detection subassembly detected the liquid level height in the container and surpassed a certain height, send signal to controller, stop the pump by controller drive pump liquid subassembly and go into liquid, with the pump income volume of strict control liquid, realize the accurate control to liquid level height, avoid liquid too much and spill over the container and cause environmental pollution.

In an embodiment, referring to fig. 1 and fig. 2, the liquid pumping assembly includes a lifting assembly and a plurality of peristaltic pumps 40, the lifting assembly is connected to the mounting frame 10, the peristaltic pumps 40 are connected to the liquid pumping tube 30, the peristaltic pumps 40 are connected to the lifting assembly through a peristaltic pump mounting plate 41, and the peristaltic pumps 40 are connected to the controller.

The lifting assembly drives the peristaltic pump 40 and the pump liquid pipe 30 to move towards the direction close to the container, so that the pump liquid pipe 30 enters the container, the peristaltic pump 40 can automatically pump in or pump out liquid when working or stopping working, and after the operation is finished, the lifting assembly works to drive the peristaltic pump 40 and the pump liquid pipe 30 to move towards the direction far away from the container, so that the pump liquid pipe 30 is pumped out from the container.

In an embodiment, referring to fig. 2, the peristaltic pump mounting plate 41 is connected to a downwardly extending guide rod 50, a through groove is formed in the guide rod 50, and the pumping liquid tube 30 is inserted into the through groove.

The guide rod 50 is provided to facilitate the insertion of the pump liquid pipe 30 into the container, so as to facilitate the rapid insertion of the pump liquid pipe 30 into the container, thereby improving the pumping efficiency.

In one embodiment, referring to fig. 2, the upper end of the guide rod 50 is connected to a fixing block 51, and the fixing block 51 is connected to the peristaltic pump mounting plate 41. The guide rod 50 is fixed by the fixing block 51, and the guide rod 50 guides the insertion of the pump fluid tube 30 into the container.

Specifically, the fixing block 51 is provided with a jack, and the guide rod 50 is inserted into the jack, so that the structure is simple and the operation is convenient.

In one embodiment, referring to fig. 2, the lifting assembly includes a lifting cylinder 20, a cylinder connecting plate 22 is connected to the lifting cylinder 20, and the cylinder connecting plate 22 is connected to the peristaltic pump mounting plate 41. Utilize lift cylinder 20 to drive peristaltic pump 40 and liquid pumping pipe 30 and reciprocate, simple structure, convenient operation.

Specifically, the lifting cylinder 20 is connected to the mounting frame 10 through a cylinder connecting frame 21.

In one embodiment, referring to fig. 2, the liquid level detecting assembly is connected to the mounting frame 10 through an ultrasonic connecting frame.

Specifically, the liquid level detection assembly comprises a plurality of ultrasonic sensors 60, the ultrasonic sensors 60 are located below the peristaltic pump 40, the ultrasonic sensors 60 are connected with the ultrasonic connecting frame, and the ultrasonic sensors 60 are connected with the controller. The ultrasonic sensor 60 is used for detecting the height of the liquid level in the container, and detecting whether the height of the liquid level in the container exceeds a certain threshold value, so that the peristaltic pump 40 can be stopped in time to stop pumping the liquid.

Of course, it is also possible to detect whether the liquid level is below a certain threshold value by the ultrasonic sensor 60 when the liquid is pumped out, and if so, send a signal to the controller, and the controller drives the peristaltic pump 40 to stop working so as to stop pumping out the liquid.

In an embodiment, referring to fig. 2, the ultrasonic connecting frame includes a first connecting frame 61 and a second connecting frame 62, the second connecting frame 62 is connected to an outer end of the first connecting frame 61, the first connecting frame 61 is connected to the mounting frame 10, a plurality of jacks are arranged on the second connecting frame 62, and the ultrasonic sensor 60 is inserted into the jacks. A plurality of receptacles are provided and ultrasonic sensors 60 are inserted into the receptacles to facilitate detection of the level of the plurality of containers.

In one embodiment, referring to fig. 1 and 2, the liquid pumping mechanism further includes a centrifugal tube 70, the centrifugal tube 70 is connected to the mounting frame 10 through a fixing frame (not shown), the centrifugal tube 70 is located below the guide bar 50, and the ultrasonic sensor 60 is located at one side of the centrifugal tube 70.

In this embodiment, the containers mentioned above are all centrifuge tubes 70.

In the present embodiment, the controller model described above is, but not limited to, STM32F103ZET 6.

The aforesaid a pump liquid mechanism, through setting up pump liquid subassembly and liquid level detection subassembly, drive reciprocating of peristaltic pump 40 and pump liquid pipe 30 through the lifting unit, pump liquid pipe 30 inserts in centrifuging tube 70 under the guide effect of guide bar 50, pump liquid operation is carried out, when going into liquid to centrifuging tube 70 pump, liquid level detection subassembly detects whether the liquid level in centrifuging tube 70 exceeds a certain threshold value, so that the controller can in time control peristaltic pump 40 stop work when liquid level exceeds a certain threshold value in centrifuging tube 70, avoid liquid to spill over centrifuging tube 70, realize automatic pump income or pump the culture solution, and can accurately detect the liquid level in the container, in order to improve pump liquid efficiency, avoid liquid pump to go into the excess.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. The utility model provides a pump liquid mechanism, its characterized in that includes mounting bracket, controller, pump liquid subassembly and liquid level detection subassembly, pump liquid subassembly connect in on the mounting bracket, the liquid level detection subassembly connect in on the mounting bracket, pump liquid subassembly and the liquid level detection subassembly respectively with the controller is connected.

2. The liquid pumping mechanism of claim 1, wherein the liquid pumping assembly comprises a lifting assembly and a plurality of peristaltic pumps, the lifting assembly is connected with the mounting frame, a liquid pumping pipe is connected to the peristaltic pumps, the peristaltic pumps are connected to the lifting assembly through peristaltic pump mounting plates, and the peristaltic pumps are connected with the controller.

3. The liquid pumping mechanism of claim 2, wherein a guide rod extending downwards is connected to the peristaltic pump mounting plate, a through groove is formed in the guide rod, and the liquid pumping pipe is inserted in the through groove.

4. The liquid pumping mechanism as claimed in claim 3, wherein a fixed block is connected to the upper end of the guide rod, and the fixed block is connected to the peristaltic pump mounting plate.

5. The liquid pumping mechanism of claim 4, wherein the lifting assembly comprises a lifting cylinder, and a cylinder connecting plate is connected to the lifting cylinder and connected to the peristaltic pump mounting plate.

6. A fluid pumping mechanism according to claim 5, wherein the lifting cylinder is connected to the mounting bracket by a cylinder connection.

7. A pumping mechanism according to any one of claims 3 to 6, wherein the level sensing assembly is connected to the mounting bracket by an ultrasonic attachment bracket.

8. The pumping mechanism as claimed in claim 7, wherein the liquid level detecting assembly comprises a plurality of ultrasonic sensors, the ultrasonic sensors are located below the peristaltic pump, the ultrasonic sensors are connected to the ultrasonic connecting frame, and the ultrasonic sensors are connected to the controller.

9. The liquid pumping mechanism of claim 8, wherein the ultrasonic connecting frame comprises a first connecting frame and a second connecting frame, the second connecting frame is connected to an outer end of the first connecting frame, the first connecting frame is connected with the mounting frame, a plurality of jacks are arranged on the second connecting frame, and the ultrasonic sensor is inserted into the jacks.

10. The liquid pumping mechanism of claim 8, further comprising a centrifuge tube connected to the mounting frame via a mounting bracket, the centrifuge tube being located below the guide bar, and the ultrasonic sensor being located on one side of the centrifuge tube.