A kind of liquid transfer gun and its using method

Abstract

The present invention discloses a liquid transfer gun and a method for using the same, including a liquid transfer gun, wherein the front of the liquid transfer gun is provided with an observation window for displaying when adjusting the range and a wireless control switch for wirelessly controlling a glue-splitting machine driving motor to work, a pressure block is installed on one side of the piston rod of the liquid transfer gun, the pressure block is directly opposite to the position of a micro switch installed inside the housing of the liquid transfer gun, and a liquid inlet and outlet end of the liquid transfer gun is sleeved with a liquid transfer gun head. The present invention allows the rotary valve to be quickly opened by rotating the rotating seat of the liquid discharge valve, and utilizes multiple small gun heads to facilitate uniform large-area discharge of the liquid absorbed in the liquid storage cavity. During the process of discharging the liquid from the liquid transfer gun, the glue-splitting machine driving motor is controlled to start by the wireless control switch, so that the glue-splitting machine can respond quickly to start, and the liquid discharged from the small gun head is quickly spin-coated, thereby meeting the needs of spin-coating experiments with a larger area.

Description

Technical Field

[0001] The invention belongs to the technical field of experimental equipment, and in particular relates to a liquid transfer gun and a use method thereof. Background Art

[0002] With the development of science and technology, people's scientific experiments are becoming more and more frequent, and the advancement of science and technology requires our scientific experiments to be more accurate and faster. Pipette guns are widely used in laboratory experimental activities because of their fast, convenient and accurate characteristics.

[0003] Pipette is a precision instrument, generally used for measuring small or trace amounts of liquid in the laboratory, especially for the proportioning of chemical reagents. Pipette can be used to accurately and quickly measure quantitative liquid, which expands its use scenarios. For example, in some spin coating processes, it is necessary to drip a quantitative amount of liquid on the film-forming carrier to achieve the desired film-forming effect. However, since the general pipette tip is relatively thin, it can only be used in spin coating processes with a smaller film-forming area, and the general pipette cannot be used in conjunction with a glue spreader. In some cases where the glue spreader needs to be started quickly for spin coating, it is difficult to achieve the desired effect. For example, in the process of spin coating a larger area of ​​the perovskite battery light-absorbing layer, there is a special need for a pipette that can discharge liquid over a large area and quickly interact with the glue spreader. Then the traditional pipette gradually cannot meet the use requirements. Summary of the invention

[0004] The purpose of the present invention is to provide a pipette and a method of using the same, so as to solve the problem that the existing liquid gun tip is relatively thin and can only be used in spin coating processes with a smaller film forming area, and generally the pipette cannot be used in conjunction with a glue spreader. In some situations where the glue spreader needs to be started quickly for spin coating, it is difficult to achieve the desired effect.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A pipette gun, comprising a pipette gun, wherein the front of the pipette gun is provided with an observation window for displaying when adjusting the range and a wireless control switch for wirelessly controlling a driving motor of a glue-spinning machine to work, a pressing block is installed on one side of a piston rod of the pipette gun, the pressing block is directly opposite to a micro switch installed inside a housing of the pipette gun, and a pipette gun head is sleeved at the liquid inlet and outlet ends of the pipette gun;

[0007] A liquid outlet valve is arranged in the middle of the pipette tip, a plurality of small gun tips are equidistantly installed at the bottom end of the pipette tip, a liquid collection gun tip connected to the liquid outlet valve is arranged at the center of the plurality of small gun tips, and a liquid storage cavity is formed inside the pipette tip in the top space of the liquid outlet valve.

[0008] As a preferred solution of the present invention: the liquid outlet valve includes an annular groove opened on the inner wall of the pipette head, the annular groove is slidably connected to the annular sliding block arranged on the edge of the rotating seat, a tubular protrusion is arranged in the middle part of the rotating seat, and the outer side of the tubular protrusion is interlaced and connected with a sleeve opened at the bottom of the liquid storage cavity.

[0009] As a preferred solution of the present invention: a sealing ring is sleeved on the outer edge of the annular sliding block, and the outer diameter of the sealing ring matches the inner diameter of the annular sliding groove.

[0010] As a preferred solution of the present invention: the height of the tubular protrusion is greater than the height of the sleeve, and a plurality of leakage holes for connecting with the liquid storage cavity are formed on the surface of the tubular protrusion.

[0011] As a preferred solution of the present invention: the micro switch is electrically connected to the wireless control switch via a relay installed inside the housing of the pipette gun.

[0012] A method for using a pipette, comprising the following steps:

[0013] First, make sure that the wireless communication between the pipette and the glue machine is normal, rotate the piston of the pipette, and adjust the range of the pipette to the required size through the range displayed in the observation window;

[0014] Then rotate the rotating seat to make the annular slider slide down in the annular groove, and also make the top of the tubular protrusion retract into the sleeve, so that the small gun head and the liquid storage chamber are not in communication, and then press the piston down to make the piston move down a stroke. At this time, hold the pipette gun vertically, make the liquid collection gun head contact with the liquid in the measuring cup, release the piston, and realize the liquid suction into the liquid storage chamber of the pipette gun head, and complete the liquid collection;

[0015] Then rotate the rotating seat so that the top of the tubular protrusion extends out of the sleeve, and at this time the leakage hole of the tubular protrusion is in a conductive state with the liquid storage chamber, press down the piston, so that the piston moves down two strokes, at this time the pressure block triggers the micro switch, and the control relay is turned on after the micro switch is energized, and then release the piston, hold the pipette vertically, and use multiple small gun heads to discharge the liquid absorbed in the liquid storage chamber evenly over a large area.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the pipette tip of the pipette gun is provided with a plurality of small gun tips arranged in a circle, and the rotary valve can be quickly opened by rotating the rotating seat of the liquid outlet valve, and the liquid absorbed in the liquid storage chamber can be discharged evenly over a large area by utilizing a plurality of small gun tips. During the liquid discharge process of the pipette gun, the micro switch and the time relay are triggered, and finally the glue spreader drive motor is controlled to start through the wireless control switch, so that the glue spreader can respond quickly to start, and the liquid discharged from the small gun tip is quickly spin-coated, thereby meeting the needs of spin coating experiments with a larger area. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the liquid transfer gun of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure of the pipette tip of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the liquid outlet valve of the present invention;

[0022] Figure 5 It is a schematic diagram of the micro switch structure of the present invention.

[0023] In the figure: 1. Pipette; 11. Observation window; 12. Wireless control switch; 13. Pressure block; 14. Micro switch; 2. Pipette tip; 21. Liquid outlet valve; 211. Annular slide; 2111. Sleeve; 212. Rotating seat; 2121. Tubular protrusion; 2122. Leakage hole; 22. Small gun tip; 23. Liquid extraction gun tip; 24. Liquid storage chamber. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0025] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

[0026] See also Figure 1-5 The present invention provides a technical solution: a pipette gun, comprising a pipette gun 1, the front of the pipette gun 1 is provided with an observation window 11 for displaying when adjusting the range and a wireless control switch 12 for wirelessly controlling the driving motor of the glue-spinning machine to work, a pressing block 13 is installed on one side of the piston rod of the pipette gun 1, the pressing block 13 is directly opposite to the micro switch 14 installed inside the housing of the pipette gun 1, and the inlet and outlet ends of the pipette gun 1 are sleeved with a pipette gun head 2;

[0027] A liquid outlet valve 21 is provided in the middle of the pipette tip 2, and a plurality of small gun tips 22 are equidistantly installed at the bottom end of the pipette tip 2. A liquid collection gun tip 23 connected to the liquid outlet valve 21 is provided at the center of the plurality of small gun tips 22. The interior of the pipette tip 2 is located in the top space of the liquid outlet valve 21 to form a liquid storage chamber 24.

[0028] Preferably, the liquid outlet valve 21 includes an annular groove 211 opened on the inner wall of the pipette tip 2, the annular groove 211 is slidably connected to the annular sliding block arranged on the edge of the rotating seat 212, a tubular protrusion 2121 is arranged in the middle of the rotating seat 212, and the outer side of the tubular protrusion 2121 is interlaced and connected with the sleeve 2111 opened at the bottom of the liquid storage chamber 24. By rotating the rotating seat 212, the tubular protrusion 2121 moves upward in the sleeve 2111, so that the leakage hole 2122 is connected to the inside of the liquid storage chamber 24, and then the liquid in the liquid storage chamber 24 is discharged evenly and over a large area through multiple small gun tips 22.

[0029] Preferably, a sealing ring is sleeved on the outer edge of the annular slider, and the outer diameter of the sealing ring matches the inner diameter of the annular groove 211 . When the annular slider rotates and slides in the annular groove 211 , the provided sealing ring can ensure the sealing of the liquid outlet valve 21 .

[0030] Preferably, the height of the tubular protrusion 2121 is greater than the height of the sleeve 2111, and a plurality of leakage holes 2122 for connecting to the liquid storage chamber 24 are also provided on the surface of the tubular protrusion 2121. The conduction state between the leakage holes 2122 and the inside of the liquid storage chamber 24 is adjusted by raising and lowering the tubular protrusion 2121 inside the sleeve 2111.

[0031] Preferably, the micro switch 14 is electrically connected to the wireless control switch 12 via a relay installed inside the housing of the pipette gun 1, and the relay can be used to delay the power supply of the driving motor of the glue-splitting machine.

[0032] Working principle: First, make sure that the wireless communication between the pipette gun 1 and the glue machine is normal, rotate the piston of the pipette gun 1, and adjust the range of the pipette gun 1 to the required size through the range displayed in the observation window 11;

[0033] Then, the rotating seat 212 is rotated to make the annular slide block slide down in the annular groove 211, and the top of the tubular protrusion 2121 is retracted into the sleeve 2111, so that the small gun head 22 and the liquid storage chamber 24 are not in communication, and the piston is pressed down to make the piston move down a stroke. At this time, the pipette 1 is held vertically, and the liquid collection gun head 23 is brought into contact with the liquid in the measuring cup, and the piston is released to achieve the liquid suction into the liquid storage chamber 24 of the pipette head 2, and the liquid collection is completed;

[0034] Then rotate the rotating seat 212 so that the top of the tubular protrusion 2121 extends out of the sleeve 2111, and at this time, the leakage hole 2122 of the tubular protrusion 2121 is in a conductive state with the liquid storage chamber 24, and the piston is pressed down to move the piston down two strokes. At this time, the pressure block 13 triggers the microswitch 14. After the microswitch 14 is energized, the control relay is turned on, and then the piston is released. The pipette 1 is held vertically, and a plurality of small gun heads 22 can be used to discharge the liquid absorbed in the liquid storage chamber 24 evenly over a large area. In this process, the wireless control switch 12 controls the start of the glue spreader drive motor, and then the glue spreader can be used to quickly spin-coat the discharged liquid over a large area.

[0035] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A pipette, comprising a pipette (1), characterized in that: The front of the pipette gun (1) is provided with an observation window (11) for displaying when adjusting the range and a wireless control switch (12) for wirelessly controlling the operation of the driving motor of the glue-splitting machine; a pressure block (13) is installed on one side of the piston rod of the pipette gun (1); the pressure block (13) is directly opposite to a micro switch (14) installed inside the housing of the pipette gun (1); and a pipette gun head (2) is sleeved at the liquid inlet and outlet ends of the pipette gun (1); A liquid outlet valve (21) is arranged in the middle of the pipette tip (2), a plurality of small gun tips (22) are equidistantly mounted at the bottom of the pipette tip (2), a liquid collection gun tip (23) connected to the liquid outlet valve (21) is arranged at the center of the plurality of small gun tips (22), and a liquid storage chamber (24) is formed in the interior of the pipette tip (2) in the space at the top of the liquid outlet valve (21); The liquid outlet valve (21) comprises an annular groove (211) formed on the inner wall of the pipette tip (2), the annular groove (211) being slidably connected to an annular sliding block provided on the edge of a rotating seat (212), a tubular protrusion (2121) being provided in the middle of the rotating seat (212), and the outer side of the tubular protrusion (2121) being interlacedly connected to a sleeve (2111) formed on the bottom of the liquid storage chamber (24); A sealing ring is sleeved on the outer edge of the annular sliding block, and the outer diameter of the sealing ring matches the inner diameter of the annular sliding groove (211); The height of the tubular protrusion (2121) is greater than the height of the sleeve (2111), and a plurality of leakage holes (2122) for communicating with the liquid storage cavity (24) are also provided on the surface of the tubular protrusion (2121); When in use, the rotating seat (212) is rotated to cause the tubular protrusion (2121) to move upward in the sleeve (2111), thereby connecting the leakage hole (2122) to the inside of the liquid storage chamber (24), and then achieving uniform discharge of the liquid inside the liquid storage chamber (24) through the multiple small gun heads (22).

2. A pipette according to claim 1, characterized in that: The micro switch (14) is electrically connected to the wireless control switch (12) via a relay installed inside the housing of the pipette gun (1).

3. The method for using a liquid transfer gun according to claim 1, characterized in that: The following steps are involved: First, ensure that the wireless communication between the pipette gun (1) and the glue-spinning machine is normal, rotate the piston of the pipette gun (1), and adjust the range of the pipette gun (1) to the required size through the range displayed in the observation window (11); Then, the rotating seat (212) is rotated to make the annular slide block slide down in the annular groove (211), and the top of the tubular protrusion (2121) is retracted into the sleeve (2111), so that the small gun head (22) and the liquid storage chamber (24) are not in communication, and the piston is pressed down to make the piston move down a stroke. At this time, the pipette gun (1) is held vertically, and the liquid collection gun head (23) is brought into contact with the liquid in the measuring cup. The piston is released to achieve the liquid suction into the liquid storage chamber (24) of the pipette gun head (2), and the liquid collection is completed; Then, the rotating seat (212) is rotated so that the top of the tubular protrusion (2121) extends out of the sleeve (2111), and at this time, the leak hole (2122) of the tubular protrusion (2121) is in a conducting state with the liquid storage chamber (24), and the piston is pressed down so that the piston moves down two strokes. At this time, the pressing block (13) triggers the micro switch (14), and the control relay is turned on after the micro switch (14) is energized. Then, the piston is released, and the pipette (1) is held vertically, and the liquid sucked in the liquid storage chamber (24) is discharged evenly over a large area using multiple small gun heads (22).

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