Device for replacing filter membrane

Abstract

The utility model discloses a device for replacing a filter membrane. The device for replacing a filter membrane comprises: a suction filtration funnel 100, wherein the suction filtration funnel 100 comprises a funnel, a solenoid valve and a filter sand core connected in sequence from top to bottom, wherein the solenoid valve can control the opening and closing of the funnel and the filter sand core; a suction filtration bottle 200, wherein a first bottle opening is arranged on the upper surface of the suction filtration bottle 200, and a second bottle opening is arranged on the side of the suction filtration bottle 200, wherein the first bottle opening is connected to the filter sand core; and an air pump 300, wherein a silicone tube is arranged on a side of the air pump 300 close to the second bottle opening, wherein the silicone tube is connected to the second bottle opening.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical analysis equipment, in particular to a device for replacing a filter membrane. Background Art

[0002] Suspended solids refers to solid matter suspended in water, including inorganic and organic matter that are insoluble in water, as well as mud, clay, microorganisms, etc. The content of suspended solids in water is one of the indicators to measure the degree of water pollution. At present, the analysis of suspended solids in water is done manually without automated instruments.

[0003] In this manual method of analyzing suspended matter in water, during the manual filter membrane replacement process, the experimenter needs to use tweezers to carefully pick up the filter membrane, flatten the filter membrane, and curl it. This process has high requirements for the experimenter's operation. Once the operation is wrong, the filter membrane may be damaged, resulting in inaccurate data results. Operational errors will not only cause waste of experimental consumables, but also consume a lot of experimenters' time, causing a huge burden on the experimenters.

[0004] Therefore, how to provide a device for automatically replacing the filter membrane in the scene of analyzing suspended matter in water is a problem to be solved by the present utility model. Utility Model Content

[0005] The purpose of the utility model is to provide a device for replacing filter membranes. Under the premise of ensuring strict implementation of relevant requirements in standards, the filter membranes can be replaced automatically, avoiding the process of using tweezers to clamp and replace the filter membranes, making experimental operations more flexible and further reducing the burden on experimenters.

[0006] According to one aspect of the utility model, at least one embodiment provides a device for replacing a filter membrane, comprising: a suction filtration funnel 100, wherein the suction filtration funnel 100 comprises a funnel, a solenoid valve and a filter sand core connected in sequence from top to bottom, wherein the solenoid valve can control the opening and closing of the funnel and the filter sand core; a suction filtration bottle 200, wherein a first bottle mouth is arranged on the upper surface of the suction filtration bottle 200, and a second bottle mouth is arranged on the side of the suction filtration bottle 200, wherein the first bottle mouth is connected to the filter sand core; an air pump 300, wherein a silicone tube is arranged on a side of the air pump 300 close to the second bottle mouth, wherein the silicone tube is connected to the second bottle mouth.

[0007] In at least some embodiments, the device for replacing the filter membrane includes: a weighing dish 400, wherein the weighing dish 400 is used to place the filter membrane; a mechanical arm 500, wherein the mechanical arm 500 includes a vertical fixed arm and a horizontal rotating arm, wherein one end of the rotating arm clamps the fixed arm and the other end is connected to a clamping port, wherein the clamping port can be flipped so that the weighing dish 400 is in an inverted state, and the clamping port cooperates with the rotating arm to move the weighing dish 400 so that the weighing dish 400 is directly above the funnel.

[0008] In at least some embodiments, the device for replacing the filter membrane includes: a water spraying device 600, wherein the water spraying device 600 includes a spray pot and a nozzle connected to the spray pot, wherein the nozzle can spray the deionized water stored in the spray pot into the weighing dish 400.

[0009] In at least some embodiments, the device for replacing the filter membrane includes: a control system 700, which is respectively communicated with the air pump 300, the robotic arm 500, and the water spray device 600, controls the air pump 300 to be turned on or off, controls the water spray device 600 to quantitatively spray deionized water into the weighing dish 400, and controls the clamping, movement, and flipping of the robotic arm 500.

[0010] In at least some embodiments, the device for replacing the filter membrane includes: a support platform 800, and the support platform 800 fixes the suction bottle 200, the air pump 300, the mechanical arm 500, the water spray device 600 and the control system 700 on its surface.

[0011] In at least some embodiments, the carrier platform 800 can detachably mount the weighing vessel 400 on its surface.

[0012] In at least some embodiments, the suction bottle 200 is made of glass.

[0013] In at least some embodiments, the air pump 300 is turned on by the control system 700, and then the air is input into the suction bottle 200 or the air in the suction bottle 200 is sucked out through the silicone tube.

[0014] In at least some embodiments, the inner diameter of the weighing dish 400 is larger than the diameter of the filter membrane.

[0015] In at least some embodiments, the nozzle of the water spraying device 600 is bendable, and the deionized water in the spray pot is sprayed into the weighing dish 400 by bending the nozzle.

[0016] Through the above-mentioned embodiments of the utility model, the device for replacing the filter membrane can automatically replace the filter membrane under the premise of strictly implementing the relevant requirements of the standards, avoiding the step of using tweezers to clamp and replace the filter membrane, making the experimental operation more flexible and further reducing the burden on the experimenter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of a device for replacing a filter membrane according to an embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the scheme of the present disclosure, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present disclosure.

[0020] The terms and words used in this specification and claims should not be interpreted as limited to the commonly used meanings or the meanings in the dictionary, but should be interpreted as the meanings and concepts consistent with the technical spirit of the utility model on the basis of the principle that the inventor can appropriately define the concept of the term to describe its utility model in the best way. The terms used in the specification are only used to explain specific examples, not to limit the utility model. Unless otherwise clearly indicated in the context, singular expressions include plural objects. If any patent, patent application or other reference is incorporated herein by reference and defines a term in a manner inconsistent with the above, the non-incorporated portion of the present disclosure shall control, and the term or the disclosure incorporated therein shall only control the reference in which the term is defined and / or the incorporated disclosure originally appears.

[0021] As used herein, the term "and / or" placed between a first entity and a second entity means (1) the first entity, (2) the second entity, and (3) one of the first entity and the second entity. Multiple entities listed with "and / or" should be interpreted in the same manner, that is, "one or more" of the connected entities. Other entities may exist outside the entities specifically identified by the "and / or" clause, whether related or unrelated to those entities specifically identified. Therefore, as a non-limiting example, when used in conjunction with open language such as "includes", a reference to "A and / or B" may refer to only A (including entities other than B as the case may be) in one specific instance; only B (including entities other than A as the case may be) in another specific instance; and both A and B (including other entities as the case may be) in another specific instance. Entities may refer to components, actions, structures, steps, operations, and values, etc.

[0022] Since there is no automatic membrane replacement device suitable for suspended matter analysis in water on the current market, the utility model provides a membrane replacement device, which can also be called a membrane replacement instrument, which realizes automatic membrane replacement by controlling the air pressure and liquid surface tension, without the need for the experimenter to touch the membrane. Figure 1 As shown, the device for replacing the filter membrane comprises:

[0023] The suction filter funnel 100 includes a funnel, a solenoid valve and a filter sand core connected in sequence from top to bottom, and the solenoid valve can control the opening and closing of the funnel and the filter sand core;

[0024] A suction filtration bottle 200, wherein a first bottle opening is disposed on the upper surface of the suction filtration bottle 200, a second bottle opening is disposed on the side of the suction filtration bottle 200, the lower surface of the suction filtration bottle 200 is fitted with the supporting platform 800, and the first bottle opening is connected to the filter sand core;

[0025] The air pump 300 is provided with a silicone tube on one side of the air pump 300 close to the second bottle opening, the silicone tube is connected to the second bottle opening, and the base of the air pump 300 is fixed on the bearing platform 800;

[0026] A weighing dish 400, which is used to place the filter membrane and can be detachably mounted on the surface of the carrier platform 800;

[0027] The mechanical arm 500 includes a fixed arm in the vertical direction and a rotating arm in the horizontal direction. One end of the fixed arm penetrates into the carrier platform 800 and is integrated with the carrier platform 800. One end of the rotating arm clamps the fixed arm and the other end is connected to the clamping port. The clamping port can be turned over to put the weighing dish 400 in an inverted state. The clamping port cooperates with the rotating arm to move the weighing dish 400 so that the weighing dish 400 is directly above the funnel.

[0028] A water spray device 600, the water spray device 600 comprises a spray pot and a nozzle connected to the spray pot, wherein the spray pot is placed on the surface of the supporting platform 800, and the nozzle can spray the deionized water stored in the spray pot into the weighing dish 400;

[0029] The control system 700 is embedded in the carrier 800. The control system 700 is respectively connected to the air pump 300, the mechanical arm 500, and the water spray device 600 for communication, and controls the air pump 300 to turn on or off, controls the water spray device 600 to quantitatively spray deionized water into the weighing dish 400, and controls the mechanical arm 500 to clamp, move, and flip the weighing dish 400.

[0030] The carrying platform 800 fixes the suction bottle 200, the air pump 300, the mechanical arm 500, the water spraying device 600 and the control system 700 on its surface, and the carrying platform 800 detachably mounts the weighing dish 400 on its surface.

[0031] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0032] The above-mentioned suction filtration funnel 100 controls the electromagnetic valve to connect and separate the filter sand core from the funnel, so that the filter membrane can be quickly replaced.

[0033] The suction bottle 200 is made of glass, and a second bottle mouth is provided on the side wall. The air pump 300 is turned on by the control system 700, and then air is input into the suction bottle 200 through the silicone tube, or the air in the suction bottle 200 is sucked out. It should be noted that the material of the suction bottle 200 of the utility model includes but is not limited to glass material, as long as it can withstand negative pressure.

[0034] The inner diameter of the weighing dish 400 is greater than the diameter of the filter membrane. The weighing dish 400 may include multiple: at least one. As used herein, the phrase "at least one" regarding a list of one or more entities should be understood to mean selecting at least one entity from any one or more entities in the entity list, but not necessarily including at least one entity among each or every entity specifically listed in the entity list, and does not exclude any combination of entities in the entity list. This definition also allows entities to exist as appropriate rather than being specifically identified in the entity list referred to by the phrase "at least one", whether or not they are related to the specifically identified entities. Thus, as a non-limiting example, "at least one of A and B" (or equivalently, "at least one of A or B" or equivalently "at least one of A and / or B") may refer in one embodiment to at least one A, optionally including more than one A, without B being present (and optionally including entities other than B); in another embodiment to at least one B, optionally including more than one B, without A being present (and optionally including entities other than A); and in another embodiment to at least one A, optionally including more than one A, and at least one B, optionally including more than one B (and optionally including other entities). In other words, the phrases "at least one," "one or more," and "and / or" are conjunctive and disjunctive open-ended expressions in operation. For example, "at least one of A, B, and C", "at least one of A, B or C", "one or more of A, B, and C", "one or more A, B, or C", and "A, B and / or C" may represent A alone, B alone, C alone, A and B together, A and C together, B and C together, A, B and C together, and any one of the above in combination with at least one other entity, as appropriate.

[0035] The nozzle of the water spraying device 600 is bendable, and the deionized water in the spray pot is sprayed into the weighing dish 400 by bending the nozzle.

[0036] When the filter membrane needs to be replaced, the device for replacing the filter membrane of the utility model is as follows: S1, open the solenoid valve of the suction filtration funnel 100, the mechanical arm 500 clamps the funnel and places it on the carrier 800 to expose the filter membrane. S2, the mechanical arm 500 clamps the weighing dish 400, turns it 180°, and the water spraying device 600 sprays 0.5 ml of deionized water into the center of the inverted weighing dish 400 to wet the weighing dish. S3, the mechanical arm 500 clamps the inverted weighing dish 400 and moves it above the suction filtration funnel 100, and descends to a height of 1 mm from the inner surface of the weighing dish 400 to the filter membrane. S4, the air pump 300 is started, and air is input into the suction filtration bottle 200; under the action of gas pressure, the filter membrane will be blown onto the weighing dish 400, and due to the surface tension of water, the filter membrane will stick to the weighing dish 400. S5, the mechanical arm 500 clamps the weighing dish 400 carrying the filter membrane and moves it to the area where filtration is completed. S6, the robotic arm 500 clamps the funnel from the carrier 800, places it on the filter sand core, and starts the solenoid valve to fix the funnel and the filter sand core. S7, the air pump 300 starts, and the water spray device 600 sprays water into the filtration funnel to clean the filtration funnel. S8, the solenoid valve is closed, and the robotic arm 500 clamps the funnel and places it on the carrier 800. S9, the water spray device 600 sprays 0.2 ml of deionized water into the weighing dish 400 with the new filter membrane. S10, the robotic arm 500 clamps the weighing dish 400 with the new filter membrane, places it on the filter sand core of the filtration funnel 100, turns it 180°, and descends until the filter membrane fits the sand core of the filtration funnel 100. S11, the air pump 300 is started to extract the air in the suction filtration bottle 200; under the action of air pressure, the filter membrane is attached to the sand core, and the mechanical arm 500 clamps the weighing dish 400 and places it on the supporting platform 800. S12, the mechanical arm 500 clamps the funnel of the suction filtration funnel 100 and places it on the filter sand core, and the electromagnetic valve is started to start suction filtration.

[0037] Through the above-mentioned implementation mode of the utility model, the use of an automated filter membrane replacement device avoids the step of using tweezers to clamp and replace the filter membrane. Under the premise of ensuring strict implementation of relevant requirements in the standards, the experimental operation is more flexible, further reducing the burden on the experimenter.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A device for replacing a filter membrane, characterized in that: include: A suction filtration funnel (100), the suction filtration funnel (100) comprising a funnel, a solenoid valve and a filter sand core connected in sequence from top to bottom, the solenoid valve being capable of controlling the opening and closing of the funnel and the filter sand core; A suction filter bottle (200), wherein a first bottle opening is arranged on the upper surface of the suction filter bottle (200), a second bottle opening is arranged on the side of the suction filter bottle (200), and the first bottle opening is connected to the filter sand core; An air pump (300), wherein a silicone tube is disposed on a side of the air pump (300) close to the second bottle opening, and the silicone tube is connected to the second bottle opening.

2. The device for replacing the filter membrane according to claim 1, characterized in that: include: A weighing dish (400), wherein the weighing dish (400) is used to place the filter membrane; A mechanical arm (500), the mechanical arm (500) comprising a fixed arm in a vertical direction and a rotating arm in a horizontal direction, one end of the rotating arm clamping the fixed arm and the other end connected to a clamping port, wherein the clamping port can be turned over to put the weighing dish (400) in an upside-down state, and the clamping port cooperates with the rotating arm to move the weighing dish (400) so that the weighing dish (400) is directly above the funnel.

3. The device for replacing the filter membrane according to claim 2, characterized in that: include: A water spraying device (600), wherein the water spraying device (600) comprises a spray pot and a nozzle communicating with the spray pot, wherein the nozzle is capable of spraying deionized water stored in the spray pot into the weighing dish (400).

4. The device for replacing filter membrane according to claim 3, characterized in that: include: The control system (700) is respectively connected to the air pump (300), the mechanical arm (500), and the water spray device (600) for controlling the air pump (300) to be turned on or off, controlling the water spray device (600) to spray deionized water into the weighing dish (400) in a quantitative manner, and controlling the gripping, movement, and flipping of the mechanical arm (500).

5. The device for replacing filter membrane according to claim 4, characterized in that: include: A carrying platform (800), wherein the carrying platform (800) fixes the suction bottle (200), the air pump (300), the mechanical arm (500), the water spraying device (600) and the control system (700) on its surface.

6. The device for replacing filter membrane according to claim 5, characterized in that: The weighing dish (400) is detachably mounted on the surface of the supporting platform (800).

7. The device for replacing filter membrane according to claim 1, characterized in that: The suction filtration bottle (200) is made of glass.

8. The device for replacing filter membrane according to claim 4, characterized in that: The air pump (300) is turned on by the control system (700), and then air is input into the suction bottle (200) or air in the suction bottle (200) is sucked out through the silicone tube.

9. The device for replacing filter membrane according to claim 2, characterized in that: The inner diameter of the weighing dish (400) is larger than the diameter of the filter membrane.

10. The device for replacing filter membrane according to claim 3, characterized in that: The nozzle of the water spraying device (600) is bendable, and the deionized water in the spray pot is sprayed into the weighing dish (400) by bending the nozzle.

Images