CN217165559U

CN217165559U - PVDF membrane self-cleaning device for biomedical experiments

Info

Publication number: CN217165559U
Application number: CN202220606017.1U
Authority: CN
Inventors: 仇俊玲; 王选琦; 吴晓鹏
Original assignee: Fourth People's Hospital Of Shaanxi
Current assignee: Fourth People's Hospital Of Shaanxi
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-08-12
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a PVDF membrane self-cleaning device for biomedical experiments, through setting up the base, the drawer, wash diaphragm chamber and sealed lid, set up back the shape groove in the drawer, and link up water inlet and delivery port, set up a plurality of sieve meshes in washing the diaphragm chamber, wash the diaphragm chamber and arrange the inside cavity of drawer in completely, the sieve mesh of bottom covers back shape groove path within range, can make the light entering of TBST cleaner in the drawer cavity wash the diaphragm chamber and wash the membrane, and realize the automation renewal of TBST cleaner, thereby carry out repeated washing to the PVDF membrane, the problem that the experimenter wasted time on waiting for and changing the cleaner has effectively been solved, the efficiency of experiment has been improved.

Description

PVDF membrane self-cleaning device for biomedical experiments

Technical Field

The utility model belongs to the technical field of medical instrument, especially, PVDF membrane self-cleaning device for biomedical experiments.

Background

At present, in the cleaning of PVDF membranes for biomedical experiments, TBST cleaning agents which are continuously replaced and renewed are often needed for repeated cleaning, so that the background of the membranes is cleaner when the membranes emit light, the traditional cleaning mode is still relied on, even though an automatic shaking table and the like do not need manual shaking of an operator, experimenters need to use a timer for timing and frequently replace the cleaning agents, the experimenters need to tightly look at the shaking table and the timer, and more precious time is wasted on repeated 'membrane washing'. The automatic cleaning device has the advantages of low automation degree, inconvenient operation, needing to wait for liquid replacement in situ and the like, so that a set of controllable cleaning equipment is necessary to replace manpower for automatic cleaning.

Disclosure of Invention

An object of the utility model is to solve the problem among the prior art, provide a PVDF membrane self-cleaning device for biomedical experiments.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

an automatic cleaning device for a PVDF membrane for biomedical experiments comprises a base, a drawer, a membrane washing box and a sealing cover;

the improved washing machine is characterized in that a through hole is formed in one side wall of the base, a rectangular groove is formed in the bottom surface of the base, a water inlet is formed in one side wall of the drawer, the water inlet is matched with the through hole, a circular groove is formed in the bottom surface of the drawer and communicated with the water inlet, a water outlet is formed in the bottom of one side of the circular groove, the water outlet is matched with the rectangular groove, a plurality of sieve meshes are formed in the washing box, the washing box is completely arranged in a cavity inside the drawer, and the sealing cover is installed at the top of one side wall of the drawer.

Furthermore, four anti-slip pads are arranged at the bottom of the base.

Furthermore, a sliding table is arranged between the two side walls and the bottom surface of the base.

Furthermore, positioning grooves are formed in two side walls of the drawer and matched with positioning plates on two sides of the membrane washing box.

Furthermore, the top of the peripheral wall of the drawer is provided with a sealing ring, and four corners inside the sealing ring are respectively provided with a first small magnetic block.

Furthermore, a handle is arranged on the outer side of one side wall of the drawer.

Furthermore, a hinge chain is arranged at the top of one side wall of the drawer.

Furthermore, one side of the sealing cover is provided with a hinge ring, and the hinge ring and the hinge strip are assembled to form a rotating pair.

Furthermore, four corners of the sealing cover are respectively provided with a second small magnetic block, and the second small magnetic blocks correspond to the four first small magnetic blocks on the drawer.

Furthermore, the water inlet is connected with a water inlet valve interface of the water valve controller, and the water outlet is connected with a water outlet valve interface of the water valve controller.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a PVDF membrane self-cleaning device for biomedical experiments through the cooperation that sets up drawer and washing membrane case, has optimized and has reformed transform traditional artifical washing membrane, has provided a cleaning equipment that degree of automation is high, can reduce the repeated action that the experimenter washed the membrane to the at utmost, and in the washing process, operating personnel can leave the scene completely and carry out other work, has realized the automation of washing the membrane basically. The problems of low efficiency, frequent operation by experimenters, repeated timing and liquid change of the traditional cleaning mode are solved, a solution method is provided in a targeted manner, the function is reliable, and the efficiency is improved. At changing the washing liquid in-process, the washing liquid upwards diffuses by returning the shape groove, and the direction that the washing liquid got into the washing diaphragm case is from the bottom up, and is very little to the impact of membrane, compares the tradition and changes the artificial operating factor of washing liquid in-process, and is safer and standard more, has certain practical value.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an assembly diagram of the present invention.

Fig. 2 is a schematic view of the bottom surface assembly of the present invention.

Fig. 3 is a schematic view of the base structure of the present invention.

Fig. 4 is a schematic view of the drawer structure of the present invention.

Fig. 5 is a schematic view of the structure of the capsule washing box of the present invention.

Fig. 6 is a schematic view of the shape of the sealing cover of the present invention.

Fig. 7 is a conceptual diagram of the water valve controller of the present invention.

Wherein: 1-base, 2-drawer, 3-membrane washing box, 4-sealing cover, 5-through hole, 6-sliding table, 7-rectangular groove, 8-positioning groove, 9-sealing ring, 10-water inlet, 11-returning groove, 12-handle, 13-water outlet, 14-hinge chain, 15-first small magnet, 16-positioning plate, 17-sieve hole, 18-hinge ring, 19-water valve controller, 20-non-slip pad, 21-second small magnet, a-water inlet valve interface and b-water outlet valve interface.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "upper", "lower", "horizontal", "inner", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "horizontal", if present, does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, it should be further noted that unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings:

referring to fig. 1 to 7, the utility model provides a PVDF membrane self-cleaning device for biomedical experiments, including base 1, drawer 2, washing diaphragm box 3 and sealed lid 4. The base 1 is support piece, including through-hole 5, slip table 6, rectangular channel 7, slipmat 20, and base 1 places on the shaking table for the experiment through 4 slipmats 20 in bottom, and the shaking table swings the drive arrangement work back and forth. The drawer 2 comprises a positioning groove 8, a sealing ring 9, a water inlet 10, a return groove 11, a handle 12, a water outlet 13, a hinge chain 14 and a first small magnetic block 15, wherein the water inlet 10 and the water outlet 13 are respectively matched with the through hole 5 and the rectangular groove 7 of the base 1, the return groove 11 is respectively communicated with the water inlet 10 and the water outlet 13, a new TBST solution flows into the drawer 2 from the water inlet 10 under the control of a water inlet valve, the water outlet valve controls the water outlet 13 to be closed, the solution is upwards diffused through the return groove 11 until 3/4 space of the cavity inside the drawer 2 is filled, and the water inlet valve is closed. The membrane washing box 3 is used for placing PVDF membranes and comprises a positioning plate 16 and sieve pores 17, the positioning plate 16 is matched with the positioning groove 8 of the drawer 2, the membrane washing box 3 is completely arranged in the cavity inside the drawer 2, and the sieve pores 17 at the bottom cover the path range of the square groove 11, so that the solution in the cavity of the drawer 2 can easily enter the membrane washing box 3 to wash the membranes. The sealing cover 4 comprises a hinge ring 18 and a first small magnetic block 15, the hinge ring 18 and a hinge strip 14 of the drawer 2 are assembled to form a revolute pair, so that the sealing cover 4 can rotate around the hinge strip 18 of the drawer 2 to realize the operation of opening and closing the cover, when the cover is closed, a second small magnetic block 21 on the sealing cover 4 is attracted with the first small magnetic block 15 on the drawer 2, at the moment, a sealing ring 9 on the drawer 2 is extruded by a plate of the sealing cover 4, the sealing of a cavity of the drawer 2 is completed, the shaking table driving device swings together, a membrane in the membrane washing box 3 is repeatedly washed by TBST solution in the cavity of the drawer 2 until the set time is reached, a water outlet 13 is controlled to be opened by a water outlet valve, and the washed washing liquid completely flows out of the water outlet 13 and reaches a designated collection container, and the first-time washing of the membrane by the device is completed. And then closing the water outlet valve, opening the water inlet valve, allowing new washing liquid to flow in, and repeating the steps to realize multiple times of membrane washing of the device. The water valve controller 19 controls the water inlet valve and the water outlet valve respectively through the a interface and the b interface, and the single washing time and the washing times can be set through the input of the panel. After washing, the experimenter pulls out the drawer 2, opens the sealing cover 4, and lifts out the membrane washing box 3, so that the washed membrane can be obtained through separation.

As shown in figure 1, a base 1 is placed on a shaking table for experiments, a drawer 2 can slide back and forth on a sliding table on the base 1, the drawer 2 is locked with the base 1 in the washing process, a membrane washing box 3 is arranged in a cavity of the drawer 2, and a sealing cover 4 seals the cavity of the drawer 2.

As shown in fig. 2, the base 1 is placed on the experimental shaking table through the bottom 4 anti-slip pads 20, and the shaking table swings back and forth to drive the device to work. Through-hole 5, rectangular channel 7 are the overhanging inlet outlet preformed space of drawer 2, and slip table 6 provides gliding slide rail around for drawer 2, and the setting of base 1 is very necessary, can reduce the focus of whole device to its weight gain to it is more stable to make the device swing on the shaking table, reduces and slides and wipe.

As shown in fig. 3, the water inlet 10 and the water outlet 13 are respectively matched with the through hole 5 and the rectangular groove 7 of the base 1, the circular groove 11 is respectively communicated with the water inlet 10 and the water outlet 13, the circular groove 11 is the lowest surface inside the cavity of the drawer 2, the solution flowing in from the water inlet 10 can firstly fill the circular groove 11, the water level gradually rises to reach the square cavity of the drawer 2, and the solution enters the capsule washing box 3 through the sieve holes 17 at the bottom of the capsule washing box 3.

As shown in FIG. 4, the membrane washing case 3 is used to place the PVDF membrane, and the positioning plate 16 is engaged with the rectangular groove 7 of the drawer 2 for easy placement and alignment. The membrane washing box 3 is completely arranged in the square cavity inside the drawer 2, and the sieve holes 17 at the bottom cover the path range of the square groove 11, so that the solution in the cavity of the drawer 2 can easily enter the membrane washing box 3 to wash the membrane.

As shown in fig. 5, the hinge ring 18 is assembled with the hinge strip 14 of the drawer 2 to form a revolute pair, so that the sealing cover 4 can rotate around the hinge strip 14 of the drawer 2 to realize the cover opening and closing operation. When the cover is closed, the second small magnetic block 21 on the sealing cover 4 is attracted with the first small magnetic block 15 on the drawer 2, and at the moment, the sealing ring 9 on the drawer 2 is extruded by the plate of the sealing cover 4, so that the cavity of the drawer 2 is sealed.

As shown in fig. 6, the water valve controller 19 controls the water inlet valve and the water outlet valve through the a and b interfaces, respectively, and the single washing time and the washing times can be set through the input of the panel.

The specific working process comprises the following steps:

1) putting the PVDF membrane to be washed into a membrane washing box 3, wherein 6 membranes can be simultaneously contained in the membrane washing box 3, embedding the membrane washing box 3 into a square cavity in a drawer 2, and pulling down a sealing cover 4 for sealing.

2) The drawer 2 is slowly pushed into the sliding table 6 of the base 1 placed on the shaking table for experiments, the sliding rail is locked when the sliding table is moved to a proper position, the drawer 2 is fixed, and the shaking table is opened.

3) After the washing time and the washing times are set, the water valve controller 19 starts to work, firstly, the water outlet valve is closed, the water inlet valve is opened, new TBST solution firstly enters the clip groove 11 in the cavity of the drawer 2, the solution is upwards diffused from the clip groove 11, the flow meter records the amount of the solution flowing in until reaching 3/4 space in the cavity of the drawer 2, and the water inlet valve is closed. The water valve controller 19 maintains the current state in the single washing time until the single washing is finished, the water outlet valve is opened, the washed solution completely flows into the designated collection container through the water outlet 13, and the water outlet valve is closed.

4) And (5) repeating the step 3), finishing the multiple cleaning of the membrane until reaching the set washing times, and finishing the washing.

5) The drawer 2 is pulled out, the sealing cover 4 is opened, the membrane washing box 3 is taken out, the membrane is lifted out, and the device is reset.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic cleaning device for a PVDF membrane for biomedical experiments is characterized by comprising a base (1), a drawer (2), a membrane cleaning box (3) and a sealing cover (4);

the improved washing machine is characterized in that a through hole (5) is formed in one side wall of the base (1), a rectangular groove (7) is formed in the bottom surface of the base (1), a water inlet (10) is formed in one side wall of the drawer (2), the water inlet (10) is matched with the through hole (5), a return groove (11) is formed in the bottom surface of the drawer (2), the return groove (11) is communicated with the water inlet (10), a water outlet (13) is formed in the bottom of one side of the return groove (11), the water outlet (13) is matched with the rectangular groove (7), a plurality of sieve meshes (17) are formed in the washing box (3), the washing box (3) is completely arranged in an inner cavity of the drawer (2), and a sealing cover (4) is arranged at the top of one side wall of the drawer (2).

2. The PVDF membrane automatic cleaning device for biomedical experiments as claimed in claim 1, wherein the bottom of the base (1) is provided with four non-slip pads (20).

3. The PVDF film automatic cleaning device for the biomedical experiments as claimed in claim 1, wherein a sliding table (6) is arranged between the two side walls and the bottom surface of the base (1).

4. The PVDF membrane automatic cleaning device for biomedical experiments as claimed in claim 1, wherein the drawer (2) has two side walls provided with positioning grooves (8), and the positioning grooves (8) are matched with the positioning plates (16) at two sides of the membrane washing box (3).

5. The PVDF film automatic cleaning device for the biomedical experiments as claimed in claim 1, wherein a sealing ring (9) is arranged at the top of the peripheral wall of the drawer (2), and first small magnetic blocks (15) are respectively arranged at four corners inside the sealing ring (9).

6. The PVDF membrane automatic cleaning device for biomedical experiments as claimed in claim 1, wherein a handle (12) is arranged on the outer side of one side wall of the drawer (2).

7. The PVDF membrane automatic cleaning device for biomedical experiments as claimed in claim 1, wherein a hinge chain (14) is arranged at the top of one side wall of the drawer (2).

8. The PVDF membrane automatic cleaning device for biomedical experiments as claimed in claim 1, wherein one side of the sealing cover (4) is provided with a hinge ring (18), and the hinge ring (18) and the hinge chain (14) are assembled to form a revolute pair.

9. The PVDF film automatic cleaning device for the biomedical experiments as claimed in claim 1, wherein four corners of the sealing cover (4) are respectively provided with a second small magnet (21), and the second small magnet (21) corresponds to the four first small magnets (15) on the drawer (2).

10. The PVDF membrane automatic cleaning device for biomedical experiments as claimed in claim 1, wherein the water inlet (10) is connected with a water inlet valve interface (a) of a water valve controller (19), and the water outlet (13) is connected with a water outlet valve interface (b) of the water valve controller (19).