Cosmetic extraction tool based on sample detection

Abstract

The cosmetic extraction tool comprises a rack, a sampling table is arranged at the bottom of the rack, a horizontal displacement module is connected to the portion, above the sampling table, of the rack, and the middle of the horizontal displacement module is connected with an electric pipettor through a lifting assembly; the lifting assembly comprises a lifting frame, a guide sleeve is fixedly connected to the bottom of the lifting frame, a lifting pipe is slidably connected to the inner side of the guide sleeve, the lower end of the lifting pipe extends to the outside of the guide sleeve and is slidably connected with a mounting support, the mounting support and the lifting pipe are fixedly connected through a locking piece, and an electric pipettor is fixedly connected to the outside of the mounting support. One side of the guide sleeve is connected with a telescopic rod, the end of the telescopic rod is connected with the lifting pipe through a control assembly, and the control assembly is used for controlling the lifting pipe to stop acting when the electric pipettor descends and encounters resistance. According to the invention, the possibility of collision damage of the electric pipettor can be reduced.

Description

Technical Field

[0001] The invention relates to an extraction tool, in particular to a cosmetic extraction tool based on sample detection. Background Art

[0002] In the process of cosmetic research and development, it is often necessary to use an extraction device to draw the cosmetic solution to be tested into each test tube, so as to realize the control test of different test groups. On this basis, the currently commonly used extraction device is mainly composed of an electric pipette and an XYZ three-axis displacement device, wherein the XYZ three-axis displacement device is used to move the electric pipette to a specified suction position, and the electric pipette is used to extract the cosmetic solution to be tested and divide it into each test tube in sequence. However, the defect of this extraction method is that the XYZ three-axis displacement device cannot flexibly adjust the moving position of the electric pipette based on the distribution position of each test tube, and can only move according to the set value. This leads to the problem of collision between the electric pipette and the test tube equipment when the moving position of the electric pipette deviates from the suction position, which affects the extraction stability of the device.

[0003] On the other hand, when the electric pipette and the test tube device collide with each other, the extraction device cannot detect it in the first place, so the XYZ three-axis displacement device will continue to move for a certain period of time in the set action after the collision, until it is manually shut down or the device shuts it down after detecting that the electric pipette cannot move to the position normally. This makes the continuous action of the device before shutting down further damage to the electric pipette, thereby increasing the damage of the electric pipette after the collision.

[0004] Therefore, there is a risk of collision with external equipment when the existing solution extraction device is in use. Summary of the invention

[0005] The object of the present invention is to provide a cosmetics extraction tool based on sample detection, which can reduce the possibility of collision and damage of an electric pipette.

[0006] The technical solution of the present invention is as follows: a cosmetic extraction tool based on sample detection, comprising a frame, a sampling platform is provided at the bottom of the frame, a horizontal displacement module is connected to the frame above the sampling platform, and the middle part of the horizontal displacement module is connected to an electric pipette via a lifting component; the lifting component comprises a lifting frame, a guide sleeve is fixedly connected to the bottom of the lifting frame, a lifting tube is slidably connected to the inner side of the guide sleeve, the lower end of the lifting tube extends to the outside of the guide sleeve and is slidably connected to a mounting bracket, the mounting bracket and the lifting tube are fixedly connected via a locking piece, the outside of the mounting bracket is fixedly connected to the electric pipette, a telescopic rod is connected to one side of the guide sleeve, the end of the telescopic rod is connected to the lifting tube via a control component, and the control component is used to control the lifting tube to stop when the electric pipette encounters resistance when descending.

[0007] In the aforementioned cosmetic extraction tool based on sample detection, the control assembly includes a driving frame fixedly connected to the outside of the lifting tube, the top and bottom of the driving frame are respectively provided with an upper pressing plate and a lower pressing plate, the top of the rod head of the telescopic rod and the upper pressing plate are in contact with each other, the lower pressing plate is respectively provided with a trigger switch and an elastic member, the bottom of the rod head of the telescopic rod and the elastic member are in contact with each other, and the trigger switch is located below the rod head;

[0008] When the electric pipette rises, the telescopic rod applies an upward driving force to the driving frame through the upper pressing plate, so that the driving frame rises synchronously with the lifting tube under the action of the driving force;

[0009] When the electric pipette descends normally, the telescopic rod applies a downward driving force to the driving frame through the elastic member, so that the driving frame descends synchronously with the lifting tube under the action of the driving force;

[0010] When the electric pipette encounters resistance when descending, the drive frame and the lifting tube maintain the current height unchanged under the action of resistance, and at the same time, the rod head of the telescopic rod continues to descend by overcoming the elastic force of the elastic member, thereby pressing and triggering the trigger switch. After being triggered, the trigger switch stops the telescopic rod and alarms.

[0011] In the aforementioned cosmetic extraction tool based on sample detection, the control component includes a driving frame fixedly connected to the outside of the lifting tube, the top and bottom of the driving frame are respectively provided with an upper pressing plate and a lower pressing plate, the top of the rod head of the telescopic rod and the upper pressing plate are in contact with each other, an elastic member is provided on the lower pressing plate, the bottom of the rod head of the telescopic rod and the elastic member are in contact with each other, an inclined pressing plate is provided on one side of the rod head of the telescopic rod, the outside of the pressing plate is connected to the driving frame, and a gap is left between the pressing plate and the telescopic rod;

[0012] When the electric pipette rises, the telescopic rod applies an upward driving force to the driving frame, so that the driving frame rises synchronously with the lifting tube under the action of the driving force;

[0013] When the electric pipette descends normally, the telescopic rod applies a downward driving force to the driving frame through the elastic member, so that the driving frame descends synchronously with the lifting tube under the action of the driving force, and the telescopic rod and the pressing plate separate from each other during the descending process;

[0014] When the electric pipette encounters resistance when descending, the drive frame and the lifting tube maintain the current height unchanged under the action of resistance, and at the same time the telescopic rod continues to descend by overcoming the elastic force of the elastic member, and then contacts the pressure plate during the descent process and exerts a horizontal squeezing force on it, so that the lifting tube is tightly attached to the inner wall of the guide sleeve under the action of the squeezing force and forms friction resistance, causing the lifting tube to be in a stagnant state.

[0015] In the aforementioned cosmetic extraction tool based on sample detection, a nut is threadedly connected to the bottom of the lower pressing plate, a cavity is formed on the inner side of the nut, and the elastic member is placed in the cavity.

[0016] In the aforementioned cosmetic extraction tool based on sample detection, the lifting tube and one side of the mounting bracket are nested inside and outside, and the locking piece is a screw threadedly connected to the outside of the mounting bracket, and the end of the screw passes through the mounting bracket and fits the lifting tube.

[0017] In the aforementioned cosmetic extraction tool based on sample testing, before suction, the electric pipette is driven by the telescopic rod to descend to a fully extended state, and the operator adjusts the height of the drive frame on the elevator tube according to the lowest suction position, so that the electric pipette is in the lowest suction position when the telescopic rod is fully extended.

[0018] In the aforementioned cosmetic extraction tool based on sample detection, the horizontal displacement module includes two first sliding bars arranged side by side on the frame, a second sliding bar is slidably connected between the two first sliding bars, and a lifting frame is slidably connected to the second sliding bar.

[0019] Compared with the prior art, the present invention has the following characteristics:

[0020] (1) The present invention uses the structural coordination of the guide sleeve, the lifting tube and the telescopic rod to enable the telescopic rod to drive the electric pipette to move up and down by telescoping, thereby effectively avoiding the occupation of the space below the electric pipette while achieving the lifting function, thereby improving the extraction effect of the present invention; by limiting the structure of the control component, the control component can be used to protect the electric pipette when it moves, that is, when the electric pipette contacts an external device during the descent process and causes stagnation, the control component controls the lifting tube to stop moving, thereby improving the extraction stability of the present invention and reducing the possibility of collision and damage of the electric pipette;

[0021] (2) On this basis, the present invention uses a control assembly composed of a drive frame, a trigger switch and an elastic member, so that the telescopic rod can push the lifting frame downward to extend under normal conditions through the cooperation of the elastic member and the drive frame, and the elastic member remains in a natural state in this state; and when the electric pipette contacts with the outside to form an obstacle during the downward movement, the push of the telescopic rod will overcome the elastic force of the elastic member and contact the trigger switch, and then the trigger switch will control the telescopic rod to stop, thereby preventing the telescopic rod from continuously exerting pressure on the electric pipette after being blocked and causing damage;

[0022] (3) Through the control assembly composed of the drive frame, the elastic member and the pressure plate, the telescopic rod can push the lifting frame downward under normal conditions through the cooperation of the elastic member and the drive frame; when the electric pipette contacts the outside and forms an obstacle during the downward movement, the drive frame and the electric pipette are blocked and cannot continue to descend, and the subsequent extension of the telescopic rod will cause the rod head to contact the pressure plate and then apply a lateral squeezing force to the pressure plate. After the pressure is applied, the pressure plate will drive the lifting tube to deviate to one side, thereby using the friction resistance between the lifting tube and the guide sleeve after the deviation to subsequently limit the telescopic rod, and the friction resistance replaces the electric pipette to bear the thrust from the telescopic rod, thereby preventing the electric pipette from being damaged by pressure;

[0023] Therefore, the present invention can reduce the possibility of collision damage of the electric pipette. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of Example 1;

[0025] Figure 2 yes Figure 1 A-direction enlarged view;

[0026] Figure 3 is a schematic structural diagram of Example 2;

[0027] Figure 4 yes Figure 3 B-direction enlarged view.

[0028] The markings in the accompanying drawings are: 1-frame, 2-sampling platform, 3-lifting frame, 4-guide sleeve, 5-lifting tube, 6-mounting bracket, 7-locking piece, 8-electric pipette, 9-telescopic rod, 10-driving frame, 11-trigger switch, 12-elastic piece, 13-pressure plate, 14-first slide bar, 15-second slide bar, 101-upper pressure plate, 102-lower pressure plate, 103-nut. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0030] Embodiment 1. A cosmetic extraction tool based on sample detection, comprising: Figure 1-2As shown, it includes a frame 1, a sampling platform 2 is provided at the bottom of the frame 1, a horizontal displacement module is connected to the frame 1 above the sampling platform 2, and an electric pipette 8 is connected to the middle of the horizontal displacement module via a lifting assembly; the lifting assembly includes a lifting frame 3, a guide sleeve 4 is fixedly connected to the bottom of the lifting frame 3, a lifting tube 5 is slidably connected to the inner side of the guide sleeve 4, the lifting tube 5 and the guide sleeve 4 are nested inside and outside, the lower end of the lifting tube 5 extends to the outside of the guide sleeve 4 and is slidably connected to a mounting bracket 6, the mounting bracket 6 and the lifting tube 5 are fixedly connected via a locking member 7, the outside of the mounting bracket 6 is fixedly connected to the electric pipette 8, a telescopic rod 9 is connected to one side of the guide sleeve 4, the telescopic rod 9 can be an electric push rod, and the end of the telescopic rod 9 is connected to the lifting tube 5 via a control assembly, and the control assembly is used to control the lifting tube 5 to stop moving when the electric pipette 8 encounters resistance when descending.

[0031] The control assembly includes a driving frame 10 fixedly connected to the outside of the lifting tube 5, and an upper pressing plate 101 and a lower pressing plate 102 are respectively provided on the top and bottom of the driving frame 10, the top of the rod head of the telescopic rod 9 and the upper pressing plate 101 are in contact with each other, and a trigger switch 11 and an elastic member 12 are respectively provided on the lower pressing plate 102, the trigger switch 11 can be a button switch or a micro switch, and the elastic member 12 can be a compression spring, the bottom of the rod head of the telescopic rod 9 and the elastic member 12 are in contact with each other, and the trigger switch 11 is located below the rod head;

[0032] When the electric pipette 8 rises, the telescopic rod 9 applies an upward driving force to the driving frame 10 through the upper pressing plate 101, so that the driving frame 10 rises synchronously with the lifting tube 5 under the action of the driving force;

[0033] When the electric pipette 8 descends normally, the telescopic rod 9 applies a downward driving force to the driving frame 10 through the elastic member 12, so that the driving frame 10 and the lifting tube 5 descend synchronously under the action of the driving force;

[0034] When the electric pipette 8 encounters resistance when descending, the drive frame 10 and the lifting tube 5 maintain the current height unchanged under the action of resistance, and at the same time, the rod head of the telescopic rod 9 continues to descend by overcoming the elastic force of the elastic member 12, thereby pressing and triggering the trigger switch 11. After being triggered, the trigger switch 11 stops the telescopic rod 9 and alarms.

[0035] The bottom of the lower pressure plate 102 is threadedly connected with a nut 103, and a cavity is formed on the inner side of the nut 103. The elastic member 12 is placed in the cavity, and the trigger switch 11 is located on the lower pressure plate 102 on one side of the nut 103. When the elastic member 12 is installed, the operator can tighten the nut 103 according to the elastic force requirement of the elastic member 12, so that the telescopic rod 9 can contact the trigger switch 11 at the required compression position of the elastic member 12, thereby improving the protection effect of the electric pipette 8.

[0036] The lifting tube 5 and one side of the mounting bracket 6 are nested inside and outside, and the locking member 7 is a screw threadedly connected to the outside of the mounting bracket 6 , and the end of the screw passes through the mounting bracket 6 and fits the lifting tube 5 .

[0037] Before the electric pipette 8 aspirates, the telescopic rod 9 drives the lifting tube 5 down to a fully extended state, and the operator adjusts the height of the driving frame 10 on the lifting tube 5 according to the lowest aspiration position, so that the electric pipette 8 is in the lowest aspiration position when the telescopic rod 9 is fully extended.

[0038] The horizontal displacement module includes two first sliding bars 14 arranged side by side on the frame 1, a second sliding bar 15 is slidably connected between the two first sliding bars 14, the second sliding bar 15 and the first sliding bars 14 on both sides are arranged in an I-shaped distribution, and the second sliding bar 15 is slidably connected to the lifting frame 3;

[0039] The first slide bar 14 and the second slide bar 15 can be electric slide bars with screw motors, so as to realize the lateral and longitudinal movement of the lifting frame 3 by using the electric slide bars;

[0040] The first slide rod 14 can also be slidably connected to the second slide rod 15 through a linear slide rail. One side of the first slide rod 14 is provided with a first screw rod driving structure connected to the frame 1. The slider of the first screw rod driving structure is connected to the second slide rod 15. One side of the second slide rod 15 is slidably connected to the lifting frame 3 through a linear slide rail. The other side of the second slide rod 15 is connected to the second screw rod driving structure. The slider of the second screw rod driving structure is connected to the lifting frame 3, so that the lateral and longitudinal movement of the lifting frame 3 can be achieved by utilizing the cooperation of the first screw rod driving structure and the second screw rod driving structure.

[0041] Before use, the operator adjusts the height of the mounting bracket 6 on the lifting tube 5 according to the lowest suction position, so that when the telescopic rod 9 is in a fully extended state, the electric pipette 8 is in the suction position.

[0042] When the present embodiment is aspirating, the first slide bar 14 and the second slide bar 15 drive the lifting frame 3 to move to the designated aspiration position, and then the telescopic rod 9 extends to drive the lifting tube 5 to descend, so that the electric pipette 8 moves downward to the designated aspiration height, and the electric pipette 8 aspirates the reagent.

[0043] When the electric pipette 8 collides with an external device during movement and causes an obstruction, the electric pipette 8 together with the lifting tube 5 cannot continue to move downward under the external obstruction, and the telescopic rod 9 in this state continues to push downward to overcome the elastic force of the elastic member 12, thereby triggering the trigger switch 11 after being pushed to the specified position. The trigger switch 11 immediately shuts down the telescopic rod 9 after being triggered to achieve the anti-collision function. Under the above cooperation, the pressure on the electric pipette 8 when it is stuck is the compression force of the elastic member 12, thereby effectively reducing the possibility of the electric pipette 8 being damaged by pressure when it is stuck.

[0044] Embodiment 2. A cosmetic extraction tool based on sample detection, comprising: Figure 3-4 As shown, it includes a frame 1, a sampling platform 2 is provided at the bottom of the frame 1, a horizontal displacement module is connected to the frame 1 above the sampling platform 2, and an electric pipette 8 is connected to the middle of the horizontal displacement module via a lifting assembly; the lifting assembly includes a lifting frame 3, a guide sleeve 4 is fixedly connected to the bottom of the lifting frame 3, a lifting tube 5 is slidably connected to the inner side of the guide sleeve 4, the lifting tube 5 and the guide sleeve 4 are nested inside and outside, the lower end of the lifting tube 5 extends to the outside of the guide sleeve 4 and is slidably connected to a mounting bracket 6, the mounting bracket 6 and the lifting tube 5 are fixedly connected via a locking member 7, the outside of the mounting bracket 6 is fixedly connected to the electric pipette 8, a telescopic rod 9 is connected to one side of the guide sleeve 4, the telescopic rod 9 can be an electric push rod, and the end of the telescopic rod 9 is connected to the lifting tube 5 via a control assembly, and the control assembly is used to control the lifting tube 5 to stop moving when the electric pipette 8 encounters resistance when descending.

[0045] The control assembly includes a driving frame 10 fixedly connected to the outside of the lifting tube 5, and an upper pressing plate 101 and a lower pressing plate 102 are respectively provided at the top and bottom of the driving frame 10, the top of the rod head of the telescopic rod 9 and the upper pressing plate 101 are fitted together, and an elastic member 12 is provided on the lower pressing plate 102, and the bottom of the rod head of the telescopic rod 9 and the elastic member 12 are fitted together, and an inclined pressing plate 13 is provided on one side of the rod head of the telescopic rod 9, and the outside of the pressing plate 13 is connected to the driving frame 10, and a gap is left between the pressing plate 13 and the telescopic rod 9;

[0046] When the electric pipette 8 rises, the telescopic rod 9 applies an upward driving force to the driving frame 10, so that the driving frame 10 rises synchronously with the lifting tube 5 under the action of the driving force;

[0047] When the electric pipette 8 descends normally, the telescopic rod 9 applies a downward driving force to the driving frame 10 through the elastic member 12, so that the driving frame 10 and the lifting tube 5 descend synchronously under the action of the driving force, and the telescopic rod 9 and the pressing plate 13 separate from each other during the descending process;

[0048] When the electric pipette 8 encounters resistance when descending, the drive frame 10 and the lifting tube 5 maintain the current height unchanged under the action of resistance, and at the same time the telescopic rod 9 overcomes the elastic force of the elastic member 12 and continues to descend, and then contacts the pressure plate 13 during the descent process and exerts a horizontal squeezing force thereon, so that the lifting tube 5 is tightly attached to the inner wall of the guide sleeve 4 under the action of the squeezing force and forms a friction resistance, causing the lifting tube 5 to be in a stagnant state.

[0049] The lifting tube 5 and one side of the mounting bracket 6 are nested inside and outside, and the locking member 7 is a screw threadedly connected to the outside of the mounting bracket 6 , and the end of the screw passes through the mounting bracket 6 and fits the lifting tube 5 .

[0050] One side of the mounting bracket 6 is connected to the electric pipette 8 via a clamp, a pipe clamp or a U-shaped buckle. The electric pipette 8 is raised and lowered synchronously with the mounting bracket 6 under normal conditions. When the electric pipette 8 is subjected to too much resistance, the electric pipette 8 can be raised and lowered slightly relative to the mounting bracket 6 to avoid damage to the electric pipette 8 caused by direct pressure.

[0051] The bottom of the lower pressure plate 102 is threadedly connected with a nut 103, and a cavity is formed on the inner side of the nut 103, and the elastic member 12 is placed in the cavity; when the elastic member 12 is installed, the operator can tighten the nut 103 according to the elastic force requirement of the elastic member 12, so that the telescopic rod 9 can contact the pressure plate 13 at the required compression position of the elastic member 12, thereby improving the protection effect of the electric pipette 8.

[0052] Before the electric pipette 8 aspirates, the telescopic rod 9 drives the lifting tube 5 down to a fully extended state, and the operator adjusts the height of the driving frame 10 on the lifting tube 5 according to the lowest aspiration position, so that the electric pipette 8 is in the lowest aspiration position when the telescopic rod 9 is fully extended.

[0053] The horizontal displacement module includes two first sliding bars 14 arranged side by side on the frame 1, a second sliding bar 15 is slidably connected between the two first sliding bars 14, the second sliding bar 15 and the first sliding bars 14 on both sides are arranged in an I-shaped distribution, and the second sliding bar 15 is slidably connected to the lifting frame 3;

[0054] The first slide bar 14 and the second slide bar 15 can be electric slide bars with screw motors, so as to realize the lateral and longitudinal movement of the lifting frame 3 by using the electric slide bars;

[0055] The first slide rod 14 can also be slidably connected to the second slide rod 15 through a linear slide rail. One side of the first slide rod 14 is provided with a first screw rod driving structure connected to the frame 1. The slider of the first screw rod driving structure is connected to the second slide rod 15. One side of the second slide rod 15 is slidably connected to the lifting frame 3 through a linear slide rail. The other side of the second slide rod 15 is connected to the second screw rod driving structure. The slider of the second screw rod driving structure is connected to the lifting frame 3, so that the lateral and longitudinal movement of the lifting frame 3 can be achieved by utilizing the cooperation of the first screw rod driving structure and the second screw rod driving structure.

[0056] Compared with Example 1, this embodiment cooperates with the structure of the pressing plate 13 and the driving frame 10, so that when the electric pipette 8 is stuck, the telescopic rod 9 will overcome the elastic force of the elastic member 12 and continue to extend downward; and when the telescopic rod 9 is extended to contact the pressing plate 13, the subsequent extension action of the telescopic rod 9 will apply a lateral extrusion force to the pressing plate 13, and the lifting tube 5 will fit closely with the guide sleeve 4 under the action of the extrusion force to form a friction resistance. When the lifting tube 5 and the guide sleeve 4 are stuck, the subsequent ejection action of the telescopic rod 9 will replace the electric pipette 8 to bear the friction resistance, thereby preventing the electric pipette 8 from being directly damaged by the push of the telescopic rod 9.

Claims

1. A cosmetic extraction tool based on sample detection, characterized in that: The invention comprises a frame (1), a sampling platform (2) is arranged at the bottom of the frame (1), a horizontal displacement module is connected to the frame (1) above the sampling platform (2), and an electric pipette (8) is connected to the middle of the horizontal displacement module via a lifting assembly; the lifting assembly comprises a lifting frame (3), a guide sleeve (4) is fixedly connected to the bottom of the lifting frame (3), a lifting tube (5) is slidably connected to the inner side of the guide sleeve (4), the lower end of the lifting tube (5) extends to the outside of the guide sleeve (4) and is slidably connected to a mounting bracket (6), the mounting bracket (6) and the lifting tube (5) are fixedly connected via a locking member (7), the outside of the mounting bracket (6) is fixedly connected to the electric pipette (8), a telescopic rod (9) is connected to one side of the guide sleeve (4), the end of the telescopic rod (9) is connected to the lifting tube (5) via a control assembly, and the control assembly is used to control the lifting tube (5) to stop moving when the electric pipette (8) encounters resistance when descending.

2. A cosmetic extraction tool based on sample detection according to claim 1, characterized in that: The control assembly comprises a driving frame (10) fixedly connected to the outside of the lifting tube (5), the top and bottom of the driving frame (10) are respectively provided with an upper pressing plate (101) and a lower pressing plate (102), the top of the rod head of the telescopic rod (9) and the upper pressing plate (101) are in contact with each other, the lower pressing plate (102) is respectively provided with a trigger switch (11) and an elastic member (12), the bottom of the rod head of the telescopic rod (9) and the elastic member (12) are in contact with each other, and the trigger switch (11) is located below the rod head; When the electric pipette (8) rises, the telescopic rod (9) applies an upward driving force to the driving frame (10) through the upper pressing plate (101), so that the driving frame (10) rises synchronously with the lifting tube (5) under the action of the driving force; When the electric pipette (8) is normally lowered, the telescopic rod (9) applies a downward driving force to the driving frame (10) through the elastic member (12), so that the driving frame (10) and the lifting tube (5) are synchronously lowered under the action of the driving force; When the electric pipette (8) encounters resistance while descending, the driving frame (10) and the lifting tube (5) maintain the current height unchanged under the action of resistance, and at the same time, the rod head of the telescopic rod (9) continues to descend by overcoming the elastic force of the elastic member (12), thereby pressing and triggering the trigger switch (11). After being triggered, the trigger switch (11) stops the telescopic rod (9) and sounds an alarm.

3. A cosmetic extraction tool based on sample detection according to claim 1, characterized in that: The control assembly comprises a driving frame (10) fixedly connected to the outside of the lifting tube (5), the top and bottom of the driving frame (10) are respectively provided with an upper pressing plate (101) and a lower pressing plate (102), the top of the rod head of the telescopic rod (9) and the upper pressing plate (101) are in contact with each other, the lower pressing plate (102) is provided with an elastic member (12), the bottom of the rod head of the telescopic rod (9) and the elastic member (12) are in contact with each other, an inclined pressing plate (13) is provided on one side of the rod head of the telescopic rod (9), the outside of the pressing plate (13) is connected to the driving frame (10), and a gap is left between the pressing plate (13) and the telescopic rod (9); When the electric pipette (8) rises, the telescopic rod (9) applies an upward driving force to the driving frame (10), so that the driving frame (10) rises synchronously with the lifting tube (5) under the action of the driving force; When the electric pipette (8) is normally lowered, the telescopic rod (9) applies a downward driving force to the driving frame (10) through the elastic member (12), so that the driving frame (10) and the lifting tube (5) are synchronously lowered under the action of the driving force, and the telescopic rod (9) and the pressing plate (13) are separated from each other during the lowering process; When the electric pipette (8) encounters resistance when descending, the driving frame (10) and the lifting tube (5) maintain the current height unchanged under the action of resistance, and at the same time, the telescopic rod (9) overcomes the elastic force of the elastic member (12) and continues to descend, and then contacts the pressure plate (13) during the descent process and exerts a horizontal squeezing force thereon, so that the lifting tube (5) is tightly attached to the inner wall of the guide sleeve (4) under the action of the squeezing force and forms a friction resistance, so that the lifting tube (5) is in a stagnant state.

4. A cosmetic extraction tool based on sample detection according to claim 2 or 3, characterized in that: The bottom of the lower pressing plate (102) is threadedly connected with a nut (103), and a cavity is formed inside the nut (103), and the elastic member (12) is placed in the cavity.

5. A cosmetic extraction tool based on sample detection according to claim 1, characterized in that: The lifting tube (5) and one side of the mounting bracket (6) are nested inside and outside, and the locking member (7) is a screw threadedly connected to the outside of the mounting bracket (6), and the end of the screw passes through the mounting bracket (6) and fits the lifting tube (5).

6. A cosmetic extraction tool based on sample detection according to claim 5, characterized in that: Before the electric pipette (8) is suctioned, the telescopic rod (9) drives the lifting tube (5) to descend to a fully extended state, and the operator adjusts the height of the driving frame (10) on the lifting tube (5) according to the lowest suction position, so that the electric pipette (8) is in the lowest suction position when the telescopic rod (9) is fully extended.

7. A cosmetic extraction tool based on sample detection according to claim 1, characterized in that: The horizontal displacement module comprises two first sliding bars (14) arranged side by side on the frame (1), a second sliding bar (15) is slidably connected between the two first sliding bars (14), and the second sliding bar (15) is slidably connected to the lifting frame (3).

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