Liquid-liquid extraction shaking device

Abstract

The invention relates to the field of extraction instruments, in particular to a liquid-liquid extraction shaking device which comprises an operation table, an annular frame is arranged in the operation table, a placement plate is eccentrically and rotatably mounted in the annular frame, a pear-shaped funnel is erected on the placement plate, a deflation part is arranged at the upper end of the pear-shaped funnel, and the two ends of the annular frame are rotatably matched with the operation table through supporting rotating shafts. A rotating motor is fixedly arranged on one side of the operation table, the supporting rotating shaft at one end is connected with the rotating motor, an eccentric block is arranged on the supporting rotating shaft at the other end, a rotating shaking assembly is arranged on the other side of the operation table and matched with the eccentric block, an L-shaped support is fixedly arranged at the bottom of the annular frame, and an eccentric shaft is fixedly arranged at the bottom of the containing plate. According to the invention, two modes of up-down reverse oscillation and horizontal rotary oscillation are combined, so that a solvent can be fully and uniformly mixed and contacted in the pear-shaped funnel, and the contact area between two phases is increased, so that the extraction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of extraction instruments, in particular to a liquid-liquid extraction shaking device. Background Art

[0002] Liquid-liquid extraction is the process of transferring organic matter from one solvent to another by taking advantage of the different solubility of organic matter in two immiscible solvents. It is often used to separate and purify organic matter and is an important experimental technique in the fields of chemistry, biology, and pharmaceuticals. Liquid-liquid extraction is usually performed using glass instruments such as separatory funnels. During the operation, the sample solution and the extractant are first poured into the separatory funnel in sequence, and then shaken to increase the contact area between the two phases and improve the extraction efficiency. After shaking, the separatory funnel is left to stand, and after the layers are completely separated, the lower and upper layers of liquid are released respectively.

[0003] At present, the laboratory usually oscillates the funnel manually. The experimenter holds the two ends of the funnel with both hands to shake it, and needs to release air intermittently during the shaking process. The operation is cumbersome and the extraction efficiency is low. At the same time, the manual shaking method has poor solvent mixing effect and the extraction effect needs to be improved. Summary of the invention

[0004] The object of the present invention is to provide a liquid-liquid extraction shaking device, aiming to solve the above technical problems.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A liquid-liquid extraction shaking device comprises an operating table, a ring frame is arranged inside the operating table, a placement plate is eccentrically installed inside the ring frame, a pear-shaped funnel is mounted on the placement plate, an air release piece is arranged on the upper end of the pear-shaped funnel, both ends of the ring frame are rotatably matched with the operating table through a supporting rotating shaft, a rotating motor is fixedly arranged on one side of the operating table, a supporting rotating shaft at one end is connected to the rotating motor, an eccentric block is arranged on the supporting rotating shaft at the other end, a rotating shaking assembly is arranged on the other side of the operating table, the rotating shaking assembly cooperates with the eccentric block, an L-shaped bracket is fixedly arranged at the bottom of the ring frame, an eccentric shaft is fixedly arranged at the bottom of the placement plate, the bottom of the eccentric shaft rotates with the L-shaped bracket, a driving part is fixedly arranged on the eccentric shaft, a horizontal shaking assembly is arranged on the L-shaped bracket, and the horizontal shaking assembly cooperates with the driving part.

[0007] Two curved grooves and two vertical grooves are arranged on the outer wall of the driving part, and the bottom of one of the curved grooves is connected with the top of the other curved groove through a vertical groove, and the upper and lower ends of the vertical grooves are respectively connected and closed with adjacent curved grooves. The horizontal shaking component includes a first slide table, in which a sliding block is slidably installed, a pull rod is fixedly arranged at the bottom of the sliding block, and a sliding pin is arranged on one side of the sliding block, and the sliding pin is slidably installed in the curved groove and the vertical groove.

[0008] As a further solution of the present invention: a lifting spring is arranged between the bottom of the sliding block and the first slide, a first switch is fixedly arranged on the top of the first slide, a roller is rotatably installed on one side of the pull rod, a driving motor is fixedly arranged on the L-shaped bracket, an eccentric plate is arranged on the output shaft of the driving motor, and the top end of the roller is always tightly pressed against the outer wall of the eccentric plate.

[0009] As a further solution of the present invention: a cavity is provided inside the sliding block, one end of the sliding pin is horizontally slidably installed in the cavity, and the sliding pin is connected to the inner wall of the cavity through a compression spring.

[0010] As a further solution of the present invention: the time taken for the roller to roll from the lowest end of the eccentric plate to the top end is consistent with the time taken for the sliding pin to slide in a section of the curved groove and the time taken for the sliding pin to slide in a section of the vertical groove.

[0011] As a further solution of the present invention: the rotary shaking assembly includes a second slide, a sliding plate is slidably installed in the second slide, the bottom end of the sliding plate is fixedly connected to a circular block through a connecting rod, the bottom end of the circular block is always tightly pressed against the outer wall of the eccentric block, a reset spring is arranged between the top of the sliding plate and the second slide, a push rod is fixedly arranged on the top of the sliding plate, the push rod slides through the upper end of the second slide, a rotating plate is rotatably installed on the top of one side of the operating table, and a second switch is fixedly arranged on the rotating plate.

[0012] As a further solution of the present invention: the air venting member includes an outer sleeve, a movable cavity is arranged inside the outer sleeve, an air guide port is penetrated through the bottom of the outer sleeve, a conical groove connected to the air guide port is extended from the bottom of the movable cavity, a matching ball is arranged at the bottom of the conical groove, a power supply is fixedly arranged on one side of the outer sleeve, an electromagnet is fixedly arranged inside the outer sleeve, the first switch and the second switch are respectively electrically connected to the power supply and are used to control the on and off of the circuit of the electromagnet.

[0013] As a further solution of the present invention: a movable rod is slidably provided in the outer sleeve, the bottom end of the movable rod passes through the electromagnet and extends into the movable cavity and presses against the matching ball, a baffle is fixedly provided on the outer wall of the movable rod, a return spring is provided between the upper end of the baffle and the movable cavity, and an iron ring is fixedly provided on the baffle.

[0014] As a further solution of the present invention: an air release cavity is provided in the movable rod along the axial direction, a spherical matching groove is provided at the bottom end of the movable rod, and the spherical matching groove is abutted against the top end of the matching ball.

[0015] As a further solution of the present invention: an inner ring groove is provided on the inner wall of the ring frame, an outer ring convex is provided on the outer wall of the placement plate, the outer ring convex is adapted to be slidably installed in the inner ring groove, and the placement plate rotates horizontally along the inner ring groove in the ring frame with the axis of the eccentric shaft as the center axis.

[0016] As a further solution of the present invention: a plurality of upper buckle plates are installed on the upper end of the placing plate for uniform rotation around the circumference, the top end of the upper buckle plate is rotatably connected to an upper clamping block, the upper clamping block is pressed and clamped on the top of the pear-shaped funnel, and a plurality of lower buckle plates are installed on the lower end of the placing plate for uniform rotation around the circumference, the bottom end of the lower buckle plate is rotatably connected to a lower clamping block, the lower clamping block is pressed and clamped on the neck of the pear-shaped funnel.

[0017] Beneficial effects of the present invention:

[0018] (1) By providing a rotary shaking assembly and a horizontal shaking assembly, the rotary motor can drive the ring frame as a whole to achieve upside down flipping through the supporting shaft, so that the pear-shaped funnel can be constantly turned upside down, and the horizontal shaking assembly can drive the ring frame as a whole to rotate eccentrically along the eccentric axis through the driving part, so that the pear-shaped funnel can achieve rotational oscillation in the horizontal direction to form a vortex. The combination of the upside-down oscillation and the horizontal rotary oscillation can make the solvent fully and evenly mixed and contacted in the pear-shaped funnel, thereby increasing the contact area between the two phases and thus improving the extraction efficiency.

[0019] (2) By setting up a driving part, when horizontal oscillation is performed, the pull rod will drive the sliding block to move back and forth up and down. At this time, the sliding pin will always slide along the curved groove and the vertical groove on the outer wall of the driving part. When the pull rod moves downward, the sliding pin will slide and cooperate with the curved groove to drive the pear-shaped funnel to achieve eccentric rotation until the sliding pin moves to the bottom of the curved groove. At this time, the pull rod starts to move upward, and the sliding pin will also slide and cooperate with the vertical groove. At this time, the placement plate and the pear-shaped funnel will stop rotating to provide an interval time for deflation. At the same time, the sliding block touches the first switch, and the deflation part will start to deflate according to the received trigger signal, thereby realizing intermittent rotation and intermittent deflation process during the horizontal oscillation.

[0020] (3) When the pear-shaped funnel is ready to be shaken upside down, the rotating motor starts, and the ring frame is driven to rotate cyclically through the supporting shaft. The eccentric block will rotate synchronously, and the rotating plate will also flip downward. Under the elastic force of the reset spring, the circular block will always be close to the outer wall of the eccentric block and perform up and down reciprocating motion. When the circular block moves downward to the lowest position, the pear-shaped funnel is in an inverted state. When the circular block moves upward to the highest position, the pear-shaped funnel is in a horizontal upright state. At the same time, the push rod will also be lifted upward to the highest position and touch the second switch. The venting part will receive the trigger signal and start to vent, so that intermittent venting can be achieved during the upside-down oscillation, and the venting time is ensured to be when the pear-shaped funnel is horizontally upright, which is conducive to improving the extraction effect.

[0021] (4) By setting up a venting member, when the electromagnet is powered off, the return spring will push the baffle downward, so that the bottom end of the movable rod is tightly against the matching ball. The spherical matching groove can effectively improve the contact tightness between it and the matching ball, so that the air guide port and the venting cavity remain closed, avoiding solvent leakage when the pear-shaped funnel oscillates upside down. When the electromagnet is powered on, the electromagnet will generate magnetism and attract the iron ring. Under the action of magnetic force, the baffle will overcome the elastic force of the return spring, so that the movable rod moves upward and no longer applies pressure to the matching ball. The gas generated during the solvent extraction process will push the matching ball open through the air guide port and be released through the venting cavity, so that the venting control process can be realized according to the on and off state of the electromagnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a structural schematic diagram of the ring frame in the present invention.

[0025] Figure 3 It is a structural schematic diagram of the placement plate in the present invention.

[0026] Figure 4 It is a structural schematic diagram of the eccentric shaft and the driving part in the present invention.

[0027] Figure 5 It is a structural schematic diagram of the horizontal shaking assembly in the present invention.

[0028] Figure 6 It is a structural schematic diagram of the rotary shaking component in the present invention.

[0029] Figure 7 It is a structural schematic diagram of the air release member in the present invention.

[0030] Figure 8It is a schematic diagram of the internal structure of the movable rod in the present invention.

[0031] In the figure: 1, operating table; 2, ring frame; 201, inner ring groove; 202, supporting shaft; 203, eccentric block; 204, L-shaped bracket; 3, placing plate; 301, outer ring convex; 302, upper buckle plate; 3021, upper clamping block; 303, lower buckle plate; 3031, lower clamping block; 304, eccentric shaft; 305, driving part; 3051, curved groove; 3052, vertical groove; 4, pear-shaped funnel; 5, venting member; 501, outer sleeve; 502, movable cavity; 503, air guide port; 504, power supply; 505, electromagnet; 506, movable rod; 5061, venting cavity; 50 62. Spherical matching groove; 507. Baffle; 508. Return spring; 509. Matching ball; 510. Iron ring; 6. Horizontal shaking assembly; 601. First slide; 602. Sliding block; 6021. Sliding pin; 6022. Extrusion spring; 603. Pull rod; 604. Driving motor; 605. Lifting spring; 606. First switch; 607. Roller; 608. Eccentric plate; 7. Rotary shaking assembly; 701. Second slide; 702. Sliding plate; 703. Circular block; 704. Return spring; 705. Push rod; 706. Rotating plate; 707. Second switch; 8. Rotating motor. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 , Figure 2 and Figure 3As shown, the present invention is a liquid-liquid extraction shaking device, comprising an operating table 1, a ring frame 2 is arranged inside the operating table 1, a placing plate 3 is eccentrically mounted inside the ring frame 2, a pear-shaped funnel 4 is mounted on the placing plate 3, a venting member 5 is arranged on the upper end of the pear-shaped funnel 4, both ends of the ring frame 2 are rotatably matched with the operating table 1 through a supporting shaft 202, a rotating motor 8 is fixedly arranged on one side of the operating table 1, the supporting shaft 202 at one end is connected to the rotating motor 8, and the supporting shaft 202 at the other end is connected to the rotating motor 8. An eccentric block 203 is provided, and a rotating shaking component 7 is provided on the other side of the operating table 1, and the rotating shaking component 7 cooperates with the eccentric block 203. An L-shaped bracket 204 is fixedly provided on the bottom of the ring frame 2, and an eccentric shaft 304 is fixedly provided on the bottom of the placement plate 3. The bottom of the eccentric shaft 304 is rotatably matched with the L-shaped bracket 204. A driving part 305 is fixedly provided on the eccentric shaft 304, and a horizontal shaking component 6 is provided on the L-shaped bracket 204, and the horizontal shaking component 6 cooperates with the driving part 305.

[0034] Specifically, by providing the rotary shaking assembly 7 and the horizontal shaking assembly 6, the rotary motor 8 can drive the ring frame 2 as a whole to achieve upside down flipping through the supporting shaft 202, so that the pear-shaped funnel 4 can be constantly turned upside down, and the horizontal shaking assembly 6 can drive the ring frame 2 as a whole to perform eccentric rotation along the eccentric shaft 304 through the driving part 305, so that the pear-shaped funnel 4 can achieve rotational oscillation in the horizontal direction to form a vortex. The combination of the upside-down oscillation and the horizontal rotary oscillation can make the solvent fully and evenly mixed and contacted in the pear-shaped funnel 4, increase the contact area between the two phases, and thus improve the extraction efficiency.

[0035] like Figure 4 As shown, two sections of curved grooves 3051 and two sections of vertical grooves 3052 are arranged on the outer wall of the driving part 305, and the bottom of one section of the curved groove 3051 is connected with the top of the other section of the curved groove 3051 through the vertical groove 3052, and the upper and lower ends of the vertical groove 3052 are respectively connected and closed with the adjacent curved grooves 3051, and the horizontal shaking component 6 includes a first slide 601, and a sliding block 602 is slidably installed in the first slide 601, a pull rod 603 is fixedly arranged at the bottom of the sliding block 602, and a sliding pin 6021 is arranged on one side of the sliding block 602, and the sliding pin 6021 is slidably installed in the curved groove 3051 and the vertical groove 3052.

[0036] Specifically, by setting up the driving part 305, when performing horizontal oscillation, the pull rod 603 will drive the sliding block 602 to move back and forth up and down. At this time, the sliding pin 6021 will always slide along the curved groove 3051 and the vertical groove 3052 on the outer wall of the driving part 305. By utilizing the sliding cooperation between the sliding pin 6021 and the curved groove 3051, the sliding pin 6021 will drive the driving part 305 and the eccentric shaft 304 to rotate, so that the placement plate 3 and the pear-shaped funnel 4 can realize eccentric rotation. When the sliding pin 6021 slides in the vertical groove 3052, the driving part 305 will no longer rotate, so that the up and down reciprocating motion of the sliding pin 6021 can be converted into an intermittent rotation process of the driving part 305.

[0037] like Figure 5 As shown, a lifting spring 605 is arranged between the bottom of the sliding block 602 and the first slide 601, a first switch 606 is fixedly arranged on the top of the first slide 601, a roller 607 is rotatably installed on one side of the pull rod 603, a driving motor 604 is fixedly arranged on the L-shaped bracket 204, an eccentric plate 608 is arranged on the output shaft of the driving motor 604, and the top end of the roller 607 is always pressed against the outer wall of the eccentric plate 608.

[0038] Specifically, the driving motor 604 is started, driving the eccentric plate 608 to rotate, and the eccentric plate 608 and the roller 607 are always kept in contact with each other. With the elastic force of the lifting spring 605, the eccentric plate 608 will drive the pull rod 603 to realize up and down reciprocating motion through the roller 607 during the rotation process. When the pull rod 603 moves downward, the sliding pin 6021 will slide and cooperate with the curved groove 3051 to drive the pear-shaped funnel 4 to realize eccentric rotation until the sliding pin 6021 moves to the bottom of the curved groove 3051. At this time, the pull rod 603 starts to move upward, and the sliding pin 6021 will also slide and cooperate with the vertical groove 3052. At this time, the placement plate 3 and the pear-shaped funnel 4 will stop rotating to provide an interval time for deflation. At the same time, the sliding block 602 touches the first switch 606, and the deflation member 5 will start to deflate according to the received trigger signal, thereby realizing intermittent rotation and intermittent deflation during the horizontal oscillation.

[0039] like Figure 5 As shown, a cavity is provided inside the sliding block 602 , one end of a sliding pin 6021 is horizontally slidably installed in the cavity, and the sliding pin 6021 is connected to the inner wall of the cavity through a compression spring 6022 .

[0040] Specifically, by providing a compression spring 6022, an outward thrust is always applied to the sliding pin 6021, so that the sliding pin 6021 can always maintain a close sliding contact with the curved groove 3051 and the vertical groove 3052 on the outer wall of the driving part 305, so as to prevent the sliding pin 6021 from falling out of the groove.

[0041] In this embodiment, the time taken for the roller 607 to roll from the lowest end of the eccentric plate 608 to the highest end is consistent with the time taken for the sliding pin 6021 to slide in a section of the curved groove 3051 and the time taken for the sliding pin 6021 to slide in a section of the vertical groove 3052. That is, when the eccentric plate 608 drives the pull rod 603 to move downward to the lowest position through the roller 607, the sliding pin 6021 is just at the bottom connection of the curved groove 3051 and the vertical groove 3052. When the pull rod 603 starts to move upward, the sliding pin 6021 will also slide upward along the vertical groove 3052. When the pull rod 603 moves upward to the highest point, the sliding pin 6021 will also slide to the top connection of the curved groove 3051 and the vertical groove 3052. Then, the sliding pin 6021 will slide downward along the curved groove 3051.

[0042] like Figure 6 As shown, the rotary shaking assembly 7 includes a second slide 701, in which a sliding plate 702 is slidably installed, and the bottom end of the sliding plate 702 is fixedly connected to a circular block 703 through a connecting rod, and the bottom end of the circular block 703 always presses against the outer wall of the eccentric block 203, and a return spring 704 is arranged between the top of the sliding plate 702 and the second slide 701, and a push rod 705 is fixedly arranged on the top of the sliding plate 702, and the push rod 705 slides through the upper end of the second slide 701, and a rotating plate 706 is rotatably installed on the top of one side of the operating table 1, and a second switch 707 is fixedly arranged on the rotating plate 706.

[0043] Specifically, when the pear-shaped funnel 4 is horizontally shaken, the rotating motor 8 is not started, that is, the ring frame 2 remains horizontally fixed, and the rotating plate 706 is also turned upward, and the top rod 705 is not in contact with the second switch 707. When the pear-shaped funnel 4 is ready to be shaken upside down, the rotating motor 8 is started, and the ring frame 2 is driven to rotate in a circular manner through the supporting shaft 202. The eccentric block 203 will rotate synchronously, and the rotating plate 706 will also flip downward. Under the elastic force of the reset spring 704, the circular block 703 will always be close to the outer wall of the eccentric block 203 and perform up and down reciprocating motion. When the circular block 703 moves downward to the lowest position, the pear-shaped funnel 4 is in an inverted state. When the circular block 703 moves upward to the highest position, the pear-shaped funnel 4 is in a horizontal upright state. At the same time, the push rod 705 will also be lifted upward to the highest position and touch the second switch 707. The deflation member 5 will receive the trigger signal and start to deflate, so that intermittent deflation can be achieved during the upside-down oscillation, and the deflation timing is ensured to be when the pear-shaped funnel 4 is horizontally upright, which is beneficial to improving the extraction effect.

[0044] like Figure 7 and Figure 8As shown, the venting member 5 includes an outer sleeve 501, an active cavity 502 is arranged inside the outer sleeve 501, an air guide port 503 is arranged through the bottom of the outer sleeve 501, a conical groove connected to the air guide port 503 is extended from the bottom of the active cavity 502, a matching ball 509 is arranged at the bottom of the conical groove, a power supply 504 is fixedly arranged on one side of the outer sleeve 501, an electromagnet 505 is fixedly arranged inside the outer sleeve 501, and a first switch 606 and a second switch 707 are respectively electrically connected to the power supply 504 and are used to control the on-off of the circuit of the electromagnet 505.

[0045] Furthermore, a movable rod 506 is slidably provided inside the outer sleeve 501, and the bottom end of the movable rod 506 passes through the electromagnet 505 and extends into the movable cavity 502 and presses against the matching ball 509. A baffle 507 is fixedly provided on the outer wall of the movable rod 506, and a return spring 508 is provided between the upper end of the baffle 507 and the movable cavity 502, and an iron ring 510 is fixedly provided on the baffle 507.

[0046] Furthermore, an air release cavity 5061 is provided in the movable rod 506 along the axial direction, and a spherical matching groove 5062 is provided at the bottom end of the movable rod 506 , and the spherical matching groove 5062 is abutted against the top of the matching ball 509 .

[0047] Specifically, by setting the venting member 5, when the electromagnet 505 is powered off, the return spring 508 will push the baffle 507 downward, so that the bottom end of the movable rod 506 is tightly against the matching ball 509, and the spherical matching groove 5062 can effectively improve its contact tightness with the matching ball 509, so that the air guide port 503 and the venting cavity 5061 remain closed, avoiding solvent leakage when the pear-shaped funnel 4 oscillates upside down. When the electromagnet 505 is energized, the electromagnet 505 will generate magnetism and attract the iron ring 510. Under the action of the magnetic force, the baffle 507 will overcome the elastic force of the return spring 508, so that the movable rod 506 moves upward and no longer applies pressure to the matching ball 509. The gas generated during the solvent extraction process will push the matching ball 509 open through the air guide port 503 and be released through the venting cavity 5061, so that the venting control process can be realized according to the on and off state of the electromagnet 505.

[0048] like Figure 2 and Figure 3 As shown, an inner ring groove 201 is provided on the inner wall of the ring frame 2, and an outer ring protrusion 301 is provided on the outer wall of the placement plate 3. The outer ring protrusion 301 is adapted to be slidably installed in the inner ring groove 201, and the placement plate 3 rotates horizontally along the inner ring groove 201 in the ring frame 2 with the axis of the eccentric shaft 304 as the center axis.

[0049] Specifically, the eccentric rotation process of the placement plate 3 in the ring frame 2 can be kept balanced and stable through the sliding cooperation between the outer ring protrusion 301 and the inner ring groove 201 .

[0050] like Figure 3 As shown, a plurality of upper buckle plates 302 are installed on the upper end of the placing plate 3 so as to rotate evenly in the circumference, and an upper clamping block 3021 is rotatably connected to the top of the upper buckle plate 302, and the upper clamping block 3021 is pressed and clamped on the top of the pear-shaped funnel 4, and a plurality of lower buckle plates 303 are installed on the lower end of the placing plate 3 so as to rotate evenly in the circumference, and a lower clamping block 3031 is rotatably connected to the bottom end of the lower buckle plate 303, and the lower clamping block 3031 is pressed and clamped on the neck of the pear-shaped funnel 4.

[0051] Specifically, by setting the upper buckle plate 302 and the lower buckle plate 303, when the pear-shaped funnel 4 is installed on the placement plate 3, the upper buckle plate 302 and the lower buckle plate 303 are flipped inward. After flipping to a certain angle, the upper buckle plate 302 and the lower buckle plate 303 both have a tendency to rotate inward, so that the upper clamping block 3021 can be pressed against the pear-shaped funnel 4, and at the same time, the lower clamping block 3031 can be pressed against the relatively fragile neck of the pear-shaped funnel 4 to achieve the positioning and clamping effect on the pear-shaped funnel 4, so that the pear-shaped funnel 4 can remain stable when it oscillates upside down and horizontally, and can effectively protect the fragile neck.

[0052] The working principle of the present invention is as follows: Figure 1-Figure 8As shown, when performing an extraction experiment, the pear-shaped funnel 4 filled with solvent is installed on the placement plate 3, and the pear-shaped funnel 4 is positioned and clamped by the upper clamping block 3021 and the lower clamping block 3031. When horizontal rotation oscillation is performed, the driving motor 604 is started to drive the eccentric plate 608 to rotate. The eccentric plate 608 and the roller 607 are always kept in contact with each other. With the elastic force of the lifting spring 605, the eccentric plate 608 will drive the pull rod 603 to realize up and down reciprocating motion through the roller 607 during the rotation process. When the pull rod 603 moves downward, the sliding pin 6021 will slide with the curved groove 3051 to drive the pear-shaped funnel 4 to realize eccentric rotation until the sliding pin 6021 moves to the bottom of the curved groove 3051. At this time, the pull rod 603 starts to move upward, and the sliding pin 6021 will also slide with the vertical groove 3052. At this time, the placement plate 3 and the pear-shaped funnel 4 will stop rotating to provide an interval time for deflation. At the same time, the sliding block 602 touches the first switch 606, and the deflation member 5 will start to deflate according to the received trigger signal, thereby realizing intermittent rotation and intermittent deflation during the horizontal oscillation process. When the upside-down oscillation is performed, the rotating motor 8 is started, and the ring frame 2 is driven to rotate in a circular manner through the supporting shaft 202. The eccentric block 203 will rotate synchronously, and the rotating plate 706 will also flip downward. Under the elastic force of the reset spring 704, the circular block 703 will always be close to the outer wall of the eccentric block 203 and perform up and down reciprocating motion. When the circular block 703 moves downward to the lowest position, the pear-shaped funnel 4 is in an inverted state. When the circular block 703 moves upward to the highest position, the pear-shaped funnel 4 is in a horizontal upright state. At the same time, the push rod 705 will also be lifted upward to the highest position and touch the second switch 707. The deflation member 5 will receive the trigger signal and start to deflate, so that intermittent deflation can be achieved during the upside-down oscillation, and the deflation timing is ensured to be when the pear-shaped funnel 4 is horizontally upright, which is beneficial to improving the extraction effect.

[0053] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A liquid-liquid extraction shaking device, comprising an operating table (1), characterized in that: The operating table (1) is provided with a ring frame (2), a placement plate (3) is eccentrically rotatably mounted inside the ring frame (2), a pear-shaped funnel (4) is mounted on the placement plate (3), and a venting member (5) is provided at the upper end of the pear-shaped funnel (4). Both ends of the ring frame (2) are rotatably matched with the operating table (1) via a supporting shaft (202). A rotating motor (8) is fixedly provided on one side of the operating table (1), wherein the supporting shaft (202) at one end is connected to the rotating motor (8), and an eccentric block (203) is provided on the supporting shaft (202) at the other end. A rotary shaking assembly (7) is provided on the other side of the workbench (1), the rotary shaking assembly (7) being matched with the eccentric block (203); an L-shaped bracket (204) is fixedly provided on the bottom of the ring frame (2); an eccentric shaft (304) is fixedly provided on the bottom of the placement plate (3); the bottom of the eccentric shaft (304) is rotatably matched with the L-shaped bracket (204); a driving part (305) is fixedly provided on the eccentric shaft (304); a horizontal shaking assembly (6) is provided on the L-shaped bracket (204), and the horizontal shaking assembly (6) is matched with the driving part (305); The outer wall of the driving part (305) is provided with two sections of curved grooves (3051) and two sections of vertical grooves (3052), and the bottom of one section of the curved groove (3051) is connected to the top of the other section of the curved groove (3051) through the vertical groove (3052), and the upper and lower ends of the vertical groove (3052) are respectively connected and closed with the adjacent curved grooves (3051), and the horizontal shaking component (6) comprises a first slide (601), and a sliding block (602) is slidably installed in the first slide (601), and a pull rod (603) is fixedly arranged at the bottom of the sliding block (602), and a sliding pin (6021) is arranged on one side of the sliding block (602), and the sliding pin (6021) is slidably installed in the curved groove (3051) and the vertical groove (3052).

2. A liquid-liquid extraction shaking device according to claim 1, characterized in that: A lifting spring (605) is arranged between the bottom of the sliding block (602) and the first slide (601); a first switch (606) is fixedly arranged on the top of the first slide (601); a roller (607) is rotatably mounted on one side of the pull rod (603); a driving motor (604) is fixedly arranged on the L-shaped bracket (204); an eccentric plate (608) is arranged on the output shaft of the driving motor (604); and the top end of the roller (607) is always tightly pressed against the outer wall of the eccentric plate (608).

3. A liquid-liquid extraction shaking device according to claim 1, characterized in that: A cavity is provided inside the sliding block (602), one end of the sliding pin (6021) is horizontally slidably installed in the cavity, and the sliding pin (6021) is connected to the inner wall of the cavity via a compression spring (6022).

4. A liquid-liquid extraction shaking device according to claim 2, characterized in that: The time taken for the roller (607) to roll along the lowest end of the eccentric plate (608) to the highest end is consistent with the time taken for the sliding pin (6021) to slide in a section of the curved groove (3051) and the time taken for the sliding pin (6021) to slide in a section of the vertical groove (3052).

5. The liquid-liquid extraction shaking device according to claim 2, characterized in that: The rotary shaking assembly (7) comprises a second slide (701), a sliding plate (702) is slidably mounted inside the second slide (701), a bottom end of the sliding plate (702) is fixedly connected to a circular block (703) via a connecting rod, the bottom end of the circular block (703) always presses against the outer wall of the eccentric block (203), a return spring (704) is arranged between the top end of the sliding plate (702) and the second slide (701), a top rod (705) is fixedly arranged on the top of the sliding plate (702), and the top rod (705) slides through the upper end of the second slide (701), and a rotating plate (706) is rotatably mounted on the top of one side of the operating table (1), and a second switch (707) is fixedly arranged on the rotating plate (706).

6. A liquid-liquid extraction shaking device according to claim 5, characterized in that: The air release member (5) comprises an outer sleeve (501), an active cavity (502) is arranged inside the outer sleeve (501), an air guide port (503) is arranged through the bottom of the outer sleeve (501), a conical groove connected to the air guide port (503) is extended from the bottom of the active cavity (502), a matching ball (509) is arranged at the bottom of the conical groove, a power source (504) is fixedly arranged on one side of the outer sleeve (501), an electromagnet (505) is fixedly arranged inside the outer sleeve (501), and the first switch (606) and the second switch (707) are respectively electrically connected to the power source (504) and used to control the on and off of the circuit of the electromagnet (505).

7. A liquid-liquid extraction shaking device according to claim 6, characterized in that: A movable rod (506) is slidably disposed inside the outer sleeve (501), the bottom end of the movable rod (506) passes through the electromagnet (505) and extends into the movable cavity (502) and presses against the matching ball (509), a baffle (507) is fixedly disposed on the outer wall of the movable rod (506), a return spring (508) is disposed between the upper end of the baffle (507) and the movable cavity (502), and an iron ring (510) is fixedly disposed on the baffle (507).

8. A liquid-liquid extraction shaking device according to claim 7, characterized in that: A deflation cavity (5061) is provided in the movable rod (506) along the axial direction, and a spherical matching groove (5062) is provided at the bottom end of the movable rod (506), and the spherical matching groove (5062) is abutted against the top end of the matching ball (509).

9. The liquid-liquid extraction shaking device according to claim 1, characterized in that: An inner ring groove (201) is provided on the inner wall of the ring frame (2), an outer ring protrusion (301) is provided on the outer wall of the placement plate (3), the outer ring protrusion (301) is adapted to be slidably installed in the inner ring groove (201), and the placement plate (3) rotates horizontally along the inner ring groove (201) in the ring frame (2) with the axis of the eccentric shaft (304) as the central axis.

10. The liquid-liquid extraction shaking device according to claim 1, characterized in that: The upper end of the placement plate (3) is evenly rotated and mounted with a plurality of upper buckle plates (302), the top end of the upper buckle plates (302) is rotatably connected to an upper clamping block (3021), and the upper clamping block (3021) is pressed against and clamped on the top of the pear-shaped funnel (4); the lower end of the placement plate (3) is evenly rotated and mounted with a plurality of lower buckle plates (303), the bottom end of the lower buckle plates (303) is rotatably connected to a lower clamping block (3031), and the lower clamping block (3031) is pressed against and clamped on the neck of the pear-shaped funnel (4).

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