CN219848269U - Accurate liquid device of extracting for organic chemistry experiments - Google Patents

Abstract

The utility model discloses an extraction accurate liquid separation device for organic chemistry experiments, and relates to the technical field of experimental apparatuses. The liquid suction device comprises a transparent extraction liquid separation cup, a liquid suction pipe, a first transparent vent pipe and a pull rod, wherein a permanent magnet is sleeved on the outer peripheral surface of the transparent extraction liquid separation cup, the liquid suction pipe is arranged at one end of the upper side of the transparent extraction liquid separation cup, the bottom end of the liquid suction pipe penetrates through and is connected with a liquid separation plate in a clamping mode, a second vent hole is formed in one end of the outer peripheral surface of the liquid separation plate, the first transparent vent pipe is arranged on the upper side of the liquid separation plate, the transparent liquid separation pipe is arranged on one side of the first transparent vent pipe, the pull rod is arranged on the upper side of the liquid separation plate, the waste liquid pipe is fixedly connected with one end of the pull rod in a clamping mode, and a first sealing gasket is fixedly connected with the bottom end of the pull rod in a clamping mode. According to the utility model, the problems that the accurate liquid separating device is inconvenient to use after being damaged, the liquid is difficult to separate rapidly, and the liquid amount at the liquid extracting interface position is difficult to control are solved through the liquid separating cup, the liquid sucking pipe, the first transparent vent pipe and the pull rod.

Description

Accurate liquid device of extracting for organic chemistry experiments

Technical Field

The utility model belongs to the technical field of experimental apparatuses, and particularly relates to an extraction accurate liquid separation device for an organic chemistry experiment.

Background

Organic chemistry, which is the chemical branch of research on the structure, nature and reaction of organic compounds containing carbon-carbon covalent bonds, which form the basis of all life of the earth and form most of known chemical substances, the bonding mode of carbon and its tetravalent form single bond, double bond and triple bond, together with the structure with delocalized electrons, make the organic compound array structure diverse, which form the basis or constituent parts of many commercial products including medicines, petrochemicals and agrochemicals, and products made of them, including lubricants, solvents, plastics, etc., and organic chemistry experiments are indispensable parts in organic chemistry research, whereas in organic chemistry experiments, extraction is a unit operation of separating mixtures by utilizing different solubilities of components in the system in solvents, and liquid separation is an operation of separating two mutually immiscible liquids, in the process of extracting and separating mixed liquids, usually using an extraction and liquid separation device to assist experimenters in separating liquids, ensuring normal performance of experiments, but still has the following drawbacks in practical use:

1. the utility model discloses an extraction liquid separation device, which is characterized in that the bottom of an extraction pipe is provided with a discharge port, and a liquid separation valve is arranged on the discharge port; one side of the extraction tube is provided with a detection device, and the detection device comprises a light source detector and a driving mechanism for driving the light source detector to move along the length direction of the extraction tube; the extraction tube is positioned in a shooting view angle of the image acquisition equipment, the light source detector is electrically connected with the liquid separation valve and is used for controlling the opening and closing of the liquid separation valve, the liquid separation device can utilize the difference of refractive indexes of light in different media through the light source detector and is matched with automatic control, so that the opening of the liquid separation valve is automatically controlled, the smooth implementation of liquid separation extraction is ensured, but in the actual use, in the process of pouring out liquid through the liquid outlet, the flowing of the liquid can lead to the remixing of two or more liquids, the liquid can not be mixed by reducing the flow velocity, the accuracy of liquid separation is ensured, the speed of liquid separation by extraction can be greatly reduced, the experimental efficiency is reduced, the structure of the liquid separation device by extraction is complex, and the accurate liquid separation effect by extraction is difficult to achieve after the damage of parts;

2. when the laboratory staff divides liquid through extraction liquid separation device, be difficult to accurately separate the liquid of two kinds of liquid interface positions generally, in order to guarantee the accuracy of dividing liquid, need pour out the liquid of interface department, but in the liquid process of dividing of a large amount of liquid, be difficult to control the volume of drawing out interface liquid, lead to certain waste.

Disclosure of Invention

The utility model aims to provide an extraction accurate liquid separation device for organic chemistry experiments, which solves the problems that the extraction accurate liquid separation device is complex in structure, inconvenient to use after damage, difficult to separate liquid rapidly and difficult to control the liquid amount at the position of a liquid interface to be extracted through a transparent extraction liquid separation cup, a liquid suction pipe, a first transparent vent pipe and a pull rod.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to an extraction accurate liquid-separating device for organic chemistry experiments, which comprises a transparent extraction liquid-separating cup, a liquid suction pipe, a first transparent vent pipe and a pull rod, wherein a permanent magnet is sleeved on the outer peripheral surface of the transparent extraction liquid-separating cup, one end of the upper side of the transparent extraction liquid-separating cup is provided with the liquid suction pipe, the bottom end of the liquid suction pipe is penetrated and clamped with a liquid-separating plate, the outer peripheral surface of the liquid-separating plate is fixedly clamped with an adsorption ring, an experimenter can adjust the position of the liquid-separating plate by adjusting the position of the permanent magnet through the adsorption fixation of the permanent magnet until the position of the permanent magnet is adjusted to the interface of liquid for separating, the structure is simple, the operation is convenient, one end of the outer peripheral surface of the liquid-separating plate is provided with a second light-through hole, a light source detector is arranged on one side of the second light-through the light-through hole, and the light source detector utilizes the difference of refractive indexes of light in different media, monitoring whether the liquid interface is in transparent liquid separation pipe inboard, guaranteeing the accuracy of dividing liquid, and extract accurate liquid separation device simple structure, when the light source detector appears damaging, extract accurate liquid separation device also can carry out comparatively accurate separation to liquid, liquid separation board upside is provided with first transparent breather pipe, first transparent breather pipe one side is provided with transparent liquid separation pipe, when dividing liquid, can communicate liquid separation board downside and external through first transparent breather pipe and second transparent breather pipe, avoids the atmospheric pressure to be too low to lead to the liquid to be difficult to take out, liquid separation board upside is provided with the pull rod, pull rod one end joint is fixed with the waste liquid pipe, pull rod bottom end joint is fixed with first sealing pad, pull rod bottom side one end is provided with the second sealing pad, when dividing liquid, after detecting that the liquid level is in transparent liquid separation pipe inboard, the pull rod is pulled upwards to drive the first sealing gasket to move upwards and close the liquid through hole, the liquid separation plate is divided up and down, the bottom side of the liquid separation plate is guaranteed to be liquid, the liquid on the lower side of the liquid separation plate can be rapidly pumped out through the liquid suction pipe, the liquid separation efficiency is improved, the mixed liquid in the transparent liquid separation pipe can be pumped out through the waste liquid pipe, the aperture of the liquid separation pipe is smaller, and waste caused by pumping out a large amount of liquid is avoided.

Further, the bottom end of the transparent extraction liquid separation cup is fixedly clamped with an anti-slip pad, one end of the outer peripheral surface of the permanent magnet is provided with a first light through hole in a penetrating mode, the first light through hole is located at one side of the second light through hole, the outer peripheral surface of the permanent magnet is fixedly clamped with a mounting plate, and the mounting plate is located at the lower side of the first light through hole;

can reduce because the accident leads to transparent extraction divides the probability that the liquid cup emptys through the slipmat, avoid extravagant, light source detector can be installed and be fixed in the mounting panel upside to monitor transparent minute liquid intraductal through first light passing hole and second light passing hole, make the minute liquid board can accurately remove to the liquid interface and be in transparent minute liquid intraductal inboard position.

Further, a liquid outlet pipe is fixedly clamped at the upper end of the liquid suction pipe, a first manual air pump is clamped at the upper end of the liquid outlet pipe, a first one-way valve is penetrated and clamped at the lower end of the peripheral surface of the liquid outlet pipe, and the liquid outlet pipe is positioned at the outer side of the transparent extraction liquid separation cup;

after two kinds of liquid extraction to when making the liquid separation board remove suitable position, can take out the liquid of liquid separation board downside through pressing first manual air pump, simple structure, convenient operation.

Further, a sealing ring is fixedly clamped on the outer peripheral surface of the liquid separation plate, the sealing ring is positioned at the outer side of the adsorption ring, the sealing ring is tightly attached to the inner wall of the transparent extraction liquid separation cup, a first through hole and a second through hole are formed in the upper end of the liquid separation plate in a penetrating mode, and the second light through hole and the first through hole are communicated in a penetrating mode;

when the position of the liquid separating plate is determined, the permanent magnet is moved, and the liquid separating plate is moved along with the movement of the permanent magnet under the adsorption action of the permanent magnet on the adsorption ring, so that the liquid separating plate can be conveniently adjusted to a proper position.

Further, one end of the first transparent vent pipe is penetrated and clamped with a connecting pipe, the other end of the connecting pipe is penetrated and clamped with a second transparent vent pipe, and the second transparent vent pipe is penetrated and clamped at the inner side of the second vent hole;

when carrying out the drawing of dividing liquid board downside liquid, the second is sealed fills up and is in the connecting pipe upside, makes in first transparent breather pipe and the transparent breather pipe of second run through the intercommunication, makes the liquid of dividing liquid board downside can communicate with external atmosphere, avoids dividing the atmospheric pressure of liquid board downside to lead to liquid to be difficult to drawing.

Further, the outer peripheral surface of the transparent liquid separating pipe is provided with a liquid through hole in a penetrating way, the transparent liquid separating pipe is connected to the inner side of the first through hole in a penetrating way in a clamping way, and the liquid through hole is positioned at the lower side of the liquid separating plate;

after liquid extraction is finished, the first sealing gasket is moved downwards, the upper end of the transparent liquid distribution pipe is communicated with the liquid through hole in a penetrating mode, liquid on the upper side of the liquid distribution plate can enter the lower side of the liquid distribution plate rapidly, after a liquid interface is found, the first sealing gasket is moved upwards until the first sealing gasket is attached to the inner side of the liquid through hole, liquid on the upper side and the lower side of the liquid distribution plate are separated, convenience is brought to laboratory staff to extract the liquid rapidly, and liquid extraction efficiency is guaranteed.

Further, a pull ring is fixedly welded at the upper end of the pull rod, a connecting frame is fixedly welded at the lower end of the peripheral surface of the pull rod, the second sealing gasket is clamped at the lower side of the connecting frame, the first sealing gasket is positioned at the lower side of the second sealing gasket, the first sealing gasket is slidably clamped at the inner side of the transparent liquid separation pipe, the connecting frame penetrates through and is inserted at the upper end of the second transparent vent pipe, and the second sealing gasket is slidably clamped at the inner side of the second transparent vent pipe;

when the pull ring is pulled to drive the first sealing gasket to move up and down, the second sealing gasket can be synchronously driven to move up and down, when the first sealing gasket is positioned at the lower side of the liquid through hole, the second sealing gasket is positioned at the lower side of the connecting pipe, liquid is prevented from entering the first transparent vent pipe when the upper liquid and the lower liquid of the liquid separating plate are communicated, the first sealing gasket is inserted into the liquid separating plate at the upper end of the liquid separating pipe along with the upward movement of the pull rod when the liquid at the lower liquid separating plate is pulled out, and the second sealing gasket is synchronously moved to the upper side of the connecting pipe, so that the lower side of the liquid separating plate can be communicated with the outside atmosphere, and the smooth selling and the extraction of the liquid are ensured.

Further, the bottom end of the waste liquid pipe is inserted into the upper side of the transparent liquid separating pipe in a penetrating manner, the upper end of the waste liquid pipe is connected with a liquid discharging pipe in a penetrating manner, the upper end of the liquid discharging pipe is connected with a second manual air pump in a clamping manner, and the lower end of the peripheral surface of the liquid discharging pipe is connected with a second one-way valve in a penetrating manner;

when carrying out the drawing of interface department liquid, make first sealed pad remove to the access hole inboard, separate liquid about the division board, can take out transparent liquid inside the division pipe through pressing the manual air pump of second, the waste liquid pipe wall is thinner and inside has certain atmospheric pressure, liquid entering waste liquid pipe inboard when avoiding not squeezing the manual air pump of second, and only can be a small amount of a lot of liquid of division pipe inboard is taken out, avoid the waste that the extraction too much liquid leads to.

The utility model has the following beneficial effects:

1. according to the utility model, through arranging the liquid suction pipe, the first transparent vent pipe and the pull rod, the problems that the extraction liquid separation device can utilize the difference of refractive indexes of light in different media through the light source detector, automatic control is realized, the opening of the liquid separation valve is automatically controlled, so that the smooth implementation of liquid separation extraction is ensured, but in actual use, in the process of pouring liquid through the liquid outlet, the flowing of the liquid can lead to the remixing of two or more liquids, the liquid can not be mixed by reducing the flow velocity, the accuracy of liquid separation is ensured, but the speed of liquid separation in extraction is greatly reduced, the experimental efficiency is reduced, the structure of the extraction liquid separation device is complex, the accurate extraction liquid separation effect is difficult to achieve after the damage of parts occurs, after the extraction is finished, the liquid separation plate is moved to the liquid interface position, the pull rod is pulled upwards, the transparent liquid separation pipe is closed by the second sealing pad, the liquid on the lower side of the liquid separation plate can be rapidly extracted through extruding the first manual air pump, the liquid can not be mixed, the problem that the liquid on the lower side of the liquid separation plate is not required to flow, the liquid separation is not caused by the flowing too fast, the liquid separation device is prevented from being damaged, and the accurate operation structure is avoided, and the device cannot be used conveniently because the parts are damaged.

2. According to the utility model, the first transparent breather pipe and the pull rod of the liquid suction pipe are arranged, so that the problems that when an experimenter performs liquid separation through the extraction liquid separation device, the liquid at the interface between two liquids is difficult to separate accurately, the liquid at the interface needs to be poured out to ensure the accuracy of liquid separation, but in the process of separating a large amount of liquid, the amount of the liquid at the interface is difficult to control, so that certain waste is caused, when the liquid at the interface needs to be extracted, the pull rod is pulled upwards to enable the first sealing pad to be positioned at the inner side of the liquid through hole, the second manual air pump is pressed to extract the liquid at the interface a small amount of times until the light source detector monitors that the liquid is one liquid in the transparent liquid separation pipe, the operation is simple and convenient, the extraction speed is low, and the waste of a large amount of liquid or the repeated steps are avoided.

Drawings

FIG. 1 is a structural effect diagram of the present utility model;

FIG. 2 is a block diagram of a transparent extraction and separation cup of the present utility model;

FIG. 3 is a block diagram of a pipette of the present utility model;

FIG. 4 is a block diagram of a first transparent vent pipe of the present utility model;

fig. 5 is a structural view of the tie rod of the present utility model.

Reference numerals:

1. a transparent extraction liquid separation cup; 101. a permanent magnet; 102. an anti-slip pad; 103. a mounting plate; 104. a first light-passing hole; 2. a pipette; 201. a liquid outlet pipe; 202. a first manual air pump; 203. a first one-way valve; 204. a liquid separation plate; 205. an adsorption ring; 206. a seal ring; 207. a first through hole; 208. a second through hole; 209. a second light-passing hole; 3. a first transparent vent pipe; 301. a connecting pipe; 302. a second transparent vent tube; 303. a transparent liquid separating tube; 304. a liquid through hole; 4. a pull rod; 401. a liquid discharge pipe; 402. a pull ring; 403. a second manual air pump; 404. a waste liquid pipe; 405. a second one-way valve; 406. a first gasket; 407. a connecting frame; 408. and a second gasket.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-5, the utility model relates to an extraction accurate liquid-separating device for organic chemistry experiments, which comprises a transparent extraction liquid-separating cup 1, a liquid suction pipe 2, a first transparent vent pipe 3 and a pull rod 4, wherein a permanent magnet 101 is sleeved on the outer circumferential surface of the transparent extraction liquid-separating cup 1, one end of the upper side of the transparent extraction liquid-separating cup 1 is provided with the liquid suction pipe 2, the bottom end of the liquid suction pipe 2 is penetrated and clamped with a liquid-separating plate 204, the outer circumferential surface of the liquid-separating plate 204 is fixedly clamped with an adsorption ring 205, after liquid extraction is completed, the position of the liquid-separating plate 204 is adjusted by moving the permanent magnet 101 up and down, the liquid level is monitored by a light source detector until the liquid-separating plate 204 is adjusted to the interface of liquid, a second through hole 209 is formed at one end of the outer circumferential surface of the liquid-separating plate 204, the light source detector utilizes the difference of refractive indexes of light in different media, monitoring whether the liquid interface is positioned at the inner side of the transparent liquid separation pipe 303, arranging a first transparent vent pipe 3 at the upper side of the liquid separation plate 204, arranging the transparent liquid separation pipe 303 at one side of the first transparent vent pipe 3, communicating the lower side of the liquid separation plate 204 with the outside through the first transparent vent pipe 3 and a second transparent vent pipe 302 when liquid separation is carried out, ensuring that liquid is smoothly extracted, arranging a pull rod 4 at the upper side of the liquid separation plate 204, clamping and fixing a waste liquid pipe 404 at one end of the pull rod 4, clamping and fixing a first sealing pad 406 at the bottom end of the pull rod 4, arranging a second sealing pad 408 at one end of the bottom side of the pull rod 4, when liquid separation is carried out, after detecting that the liquid level is positioned at the inner side of the transparent liquid separation pipe 303, pulling the pull rod 4 upwards to drive the first sealing pad 406 to move upwards and close a liquid through hole 304, pressing a second manual air pump 403 to extract the mixed liquid in the transparent liquid separation pipe 303 through the waste liquid pipe 404, when the liquid in the transparent liquid separating tube 303 is pumped out until only one liquid is contained in the transparent liquid separating tube 303, the pull rod 4 is pulled upwards to enable the first sealing gasket 406 to close the transparent liquid separating tube 303, and meanwhile enable the second sealing gasket 408 to open the connecting tube 301, the liquid separating plate 204 is separated up and down, and the liquid on the lower side of the liquid separating plate 204 is pumped out quickly by pressing the first manual air pump 202.

As shown in fig. 1-3, the bottom end of the transparent extraction and separation cup 1 is fixedly clamped with an anti-slip pad 102, one end of the outer peripheral surface of the permanent magnet 101 is provided with a first light through hole 104 in a penetrating manner, the first light through hole 104 is positioned at one side of a second light through hole 209, the outer peripheral surface of the permanent magnet 101 is fixedly clamped with a mounting plate 103, the mounting plate 103 is positioned at the lower side of the first light through hole 104, the upper end of the liquid suction pipe 2 is fixedly clamped with a liquid outlet pipe 201, the upper end of the liquid outlet pipe 201 is fixedly clamped with a first manual air pump 202, the lower end of the outer peripheral surface of the liquid outlet pipe 201 is fixedly clamped with a first one-way valve 203 in a penetrating manner, the liquid outlet pipe 201 is positioned at the outer side of the transparent extraction and separation cup 1, the outer peripheral surface of the liquid separation plate 204 is fixedly clamped with a sealing ring 206, the sealing ring 206 is positioned at the outer side of the absorption ring 205, the sealing ring 206 is tightly attached to the inner wall of the transparent extraction and separation cup 1, the upper end of the liquid separation plate 204 is provided with a first through hole 207 and a second through hole 208 in a penetrating manner, and the second light through hole 209 and the first through hole 207 are communicated in a penetrating manner;

the light source detector is fixed on the upper side of the mounting plate 103, the inside of the transparent liquid separation tube 303 is monitored through the first light through hole 104 and the second light through hole 209, after extraction is finished, the permanent magnet 101 is moved upwards and monitored through the light source detector, when the data monitored by the light source detector starts to change, the movement of the permanent magnet 101 is stopped, after the transparent liquid separation tube 303 is closed, the first manual air pump 202 is pressed, so that liquid on the lower side of the liquid separation plate 204 is sucked into the inner side of the liquid suction tube 2 under the action of air pressure, and is discharged through the liquid outlet tube 201.

As shown in fig. 1 and 4, one end of the first transparent vent pipe 3 is connected with a connecting pipe 301 in a penetrating and clamping manner, the other end of the connecting pipe 301 is connected with a second transparent vent pipe 302 in a penetrating and clamping manner, the second transparent vent pipe 302 is connected with the inner side of the second through hole 208 in a penetrating and clamping manner, a liquid through hole 304 is formed in the outer peripheral surface of the transparent liquid separating pipe 303 in a penetrating and clamping manner, the transparent liquid separating pipe 303 is connected with the inner side of the first through hole 207 in a penetrating and clamping manner, and the liquid through hole 304 is positioned at the lower side of the liquid separating plate 204;

when extraction is performed, the first sealing gasket 406 is moved upwards and the transparent liquid separation pipe 303 is closed, so that the mixed liquid is extracted on the upper side of the liquid separation plate 204, after the liquid extraction is finished, the first sealing gasket 406 is moved downwards until the first sealing gasket 406 is positioned on the lower side of the liquid through hole 304, the liquid separation plate 204 is communicated up and down, when the liquid separation is finished and the liquid on the lower side of the liquid separation plate 204 is extracted, the first sealing gasket 406 is pulled upwards until the transparent liquid separation pipe 303 is closed, the second sealing gasket 408 is positioned on the upper side of the connecting pipe 301, the first transparent vent pipe 3 and the second transparent vent pipe 302 are communicated in a penetrating way, and the liquid on the lower side of the liquid separation plate 204 is communicated with the outside atmosphere.

As shown in fig. 1 and 5, a pull ring 402 is welded and fixed at the upper end of the pull rod 4, a connecting frame 407 is welded and fixed at the lower end of the outer peripheral surface of the pull rod 4, a second sealing gasket 408 is clamped at the lower side of the connecting frame 407, a first sealing gasket 406 is positioned at the lower side of the second sealing gasket 408, the first sealing gasket 406 is slidably clamped at the inner side of the transparent liquid separation pipe 303, the connecting frame 407 is inserted and connected at the upper end of the second transparent vent pipe 302 in a penetrating manner, the second sealing gasket 408 is slidably clamped at the inner side of the second transparent vent pipe 302, the bottom end of a waste liquid pipe 404 is inserted and connected at the upper side of the transparent liquid separation pipe 303 in a penetrating manner, a liquid discharge pipe 401 is inserted and connected at the upper end of the liquid discharge pipe 401 in a penetrating manner, a second manual air pump 403 is clamped at the lower end of the outer peripheral surface of the liquid discharge pipe 401 in a penetrating manner, and a second one-way valve 405 is inserted and connected at the lower end of the liquid discharge pipe 401 in a penetrating manner;

when the interface liquid is pumped out, the pull ring 402 is pulled upwards to drive the first sealing pad 406 and the second sealing pad 408 to synchronously move upwards, so that the first sealing pad 406 is attached to the inner side of the liquid through hole 304, the second manual air pump 403 is pressed to pump out the liquid in the liquid waste pipe 404, and the liquid in the transparent liquid separation pipe 303 is pumped out a small amount of times.

The working principle of the embodiment is as follows: the experimenter moves the permanent magnet 101 downwards until the bottom end of the liquid separation plate 204 is attached to the bottom side of the transparent extraction liquid separation cup 1, pulls the pull ring 402 upwards until the first sealing pad 406 closes the transparent liquid separation tube 303, pours mixed liquid into the transparent extraction liquid separation cup 1, pulls the pull ring 402 downwards until the first sealing pad 406 opens the liquid opening 304 after extraction is completed and the liquid separation plate stands for a certain time, enables the liquid on the upper side of the liquid separation plate 204 to flow to the lower side of the liquid separation plate 204 through the transparent liquid separation tube 303, slowly moves the permanent magnet 101 upwards after the liquid separation plate stands for a certain time until the light source detector monitors that the liquid interface is positioned in the transparent liquid separation tube 303 through the first light through hole 104 and the second light through hole 209, the pull ring 402 is pulled upwards until the first sealing gasket 406 is attached to the inside of the liquid through hole 304, the second manual air pump 403 is pressed to pump out the mixed liquid in the transparent liquid separating tube 303 for a small amount of times through the waste liquid tube 404 and the liquid discharging tube 401 until the data monitored by the light source detector are not changed, the pull ring 402 is pulled upwards again to enable the first sealing gasket 406 to be inserted into the liquid separating plate 204, the second sealing gasket 408 is synchronously driven to move to the upper side of the connecting tube 301, the liquid on the lower side of the liquid separating plate 204 is communicated with the outside atmosphere, and the first manual air pump 202 is pressed and the liquid on the lower side of the liquid separating plate 204 is pumped out to form liquid through the liquid sucking tube 2 and the liquid discharging tube 201.

The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims (8)

1. The utility model provides an accurate liquid device of extraction for organic chemistry experiments, includes transparent extraction divides liquid cup (1), pipette (2), first transparent breather pipe (3) and pull rod (4), its characterized in that: the utility model discloses a liquid extraction and separation cup, including transparent extraction and separation cup (1), permanent magnet (101) have been cup jointed to transparent extraction and separation cup (1) outer peripheral face, transparent extraction and separation cup (1) upside one end is provided with pipette (2), the joint has been run through to pipette (2) bottom and has been divided liquid board (204), divide liquid board (204) outer peripheral face joint to be fixed with adsorption ring (205), divide liquid board (204) outer peripheral face one end to have been seted up second light passing hole (209), divide liquid board (204) upside to be provided with first transparent breather pipe (3), first transparent breather pipe (3) one side is provided with transparent liquid separation pipe (303), divide liquid board (204) upside to be provided with pull rod (4), pull rod (4) one end joint is fixed with waste liquid pipe (404), pull rod (4) bottom joint is fixed with first sealed pad (406), pull rod (4) bottom side one end is provided with second sealed pad (408).

2. The extraction precision liquid separation device for organic chemistry experiments according to claim 1, wherein: the anti-slip mat (102) is fixedly clamped at the bottom end of the transparent extraction liquid separation cup (1), a first light-passing hole (104) is formed in one end of the outer peripheral surface of the permanent magnet (101) in a penetrating mode, the first light-passing hole (104) is located on one side of the second light-passing hole (209), the mounting plate (103) is clamped at the outer peripheral surface of the permanent magnet (101), and the mounting plate (103) is located on the lower side of the first light-passing hole (104).

3. The extraction precision liquid separation device for organic chemistry experiments according to claim 1, wherein: the liquid suction pipe is characterized in that a liquid outlet pipe (201) is fixedly clamped at the upper end of the liquid suction pipe (2), a first manual air pump (202) is clamped at the upper end of the liquid outlet pipe (201), a first one-way valve (203) is arranged at the lower end of the peripheral surface of the liquid outlet pipe (201) in a penetrating and clamping mode, and the liquid outlet pipe (201) is located outside the transparent extraction liquid separation cup (1).

4. The extraction precision liquid separation device for organic chemistry experiments according to claim 1, wherein: the sealing ring (206) is fixedly clamped on the outer peripheral surface of the liquid separation plate (204), the sealing ring (206) is positioned on the outer side of the adsorption ring (205), the sealing ring (206) is tightly attached to the inner wall of the transparent extraction liquid separation cup (1), a first through hole (207) and a second through hole (208) are formed in the upper end of the liquid separation plate (204) in a penetrating mode, and the second through hole (209) and the first through hole (207) are communicated in a penetrating mode.

5. The extraction precision liquid separation device for organic chemistry experiments according to claim 4, wherein: one end of the first transparent vent pipe (3) penetrates through and is connected with a connecting pipe (301), the other end of the connecting pipe (301) penetrates through and is connected with a second transparent vent pipe (302), and the second transparent vent pipe (302) penetrates through and is connected with the inner side of the second through hole (208).

6. The extraction precision liquid separation device for organic chemistry experiments according to claim 4, wherein: the outer peripheral surface of the transparent liquid separating tube (303) is provided with a liquid through hole (304) in a penetrating mode, the transparent liquid separating tube (303) is connected to the inner side of the first through hole (207) in a penetrating mode, and the liquid through hole (304) is located at the lower side of the liquid separating plate (204).

7. The extraction precision liquid separation device for organic chemistry experiments according to claim 5, wherein: pull ring (402) is welded and fixed to the upper end of pull rod (4), link (407) is welded and fixed to the lower end of the outer peripheral surface of pull rod (4), second sealing gasket (408) joint is in link (407) downside, first sealing gasket (406) are located second sealing gasket (408) downside, first sealing gasket (406) slip joint is inboard in transparent liquid separation tube (303), link (407) run through and peg graft in the upper end of second transparent breather pipe (302), second sealing gasket (408) slip joint is inboard in transparent breather pipe (302).

8. The extraction precision liquid separation device for organic chemistry experiments according to claim 1, wherein: the bottom of the waste liquid pipe (404) penetrates and is inserted into the upper side of the transparent liquid separating pipe (303), the upper end of the waste liquid pipe (404) penetrates and is connected with a liquid discharging pipe (401) in a penetrating and clamping mode, the upper end of the liquid discharging pipe (401) is connected with a second manual air pump (403) in a clamping mode, and the lower end of the peripheral surface of the liquid discharging pipe (401) penetrates and is connected with a second one-way valve (405) in a penetrating and clamping mode.