A receiving device for the effluent of a mass spectrometry spray needle and a drainage method

Abstract

The present invention discloses a device for receiving the outflow liquid of a mass spectrometry spray needle and a drainage method, belonging to the field of mass spectrometry spray needles. A device for receiving the outflow liquid of a mass spectrometry spray needle and a drainage method include a fixed seat main body. A clamping groove is formed at the upper end of the fixed seat main body, and a waste liquid receiving bottle is clamped in the clamping groove. A sealing cover is hinged at the opening of the waste liquid receiving bottle, and a buckle is connected between the sealing cover and the waste liquid receiving bottle. A diversion tube is inserted into the waste liquid receiving bottle, and a positioning plug is fixedly connected to the end of the diversion tube far away from the waste liquid receiving bottle. A composite atomizer matching the diversion tube is fixedly connected in the waste liquid receiving bottle. A liquid discharge mechanism is fixedly connected to the bottom end of the waste liquid receiving bottle. An adjusting rod is rotatably connected to the fixed seat main body, and a waste liquid bucket with a waste liquid pipe is fixedly connected to the bottom end of the fixed seat main body, which can realize the change of the waste liquid treatment method of the spray needle, from the original manual moving and pouring to directional drainage, reducing the pollution of the air in the laboratory.

Description

Technical Field

[0001] The present invention relates to the field of mass spectrometry spray needles, and more specifically, to a device for receiving the effluent of a mass spectrometry spray needle and a drainage method. Background Art

[0002] Mass spectrometers have been widely used due to their extremely high specificity and sensitivity. Due to the extremely high sensitivity of mass spectrometers, the instrument needs to be carefully maintained daily, and a complete weekly maintenance is required every week. Flushing the injection pipeline is an important part of the maintenance content. The waste liquid after flushing the pipeline flows out through the spray needle. Flushing the pipeline every day can detect whether there is blockage or carbon deposition in some parts of the liquid chromatography and the spray needle, so as to observe the instrument status. The waste liquid flowing out of the spray needle needs to be at a particularly small distance from the low-end ion source exhaust section in the ion source part, only 2 cm. The spray needle is also a particularly expensive consumable, and using a large receiving container is likely to damage the tip of the needle. Therefore, a small receiving plate with a height of 0.7 cm has always been used to receive the waste liquid flowing out of the spray needle. Since the height is too low, the amount of liquid that can be received is limited. Therefore, with limited staffing, a dedicated staff member needs to continuously observe in real time to promptly pour out the waste liquid and receive it again. Receiving the waste liquid flowing out of the spray needle with a small receiving plate is not only time-consuming and laborious, but also harmful to the body of the instrument maintenance personnel. Time-consuming means that the operator needs to pause the operation of flushing the pipeline when the small receiving plate is about to be filled with waste liquid, and then continue the operation of flushing the pipeline after pouring out the waste liquid in the receiving plate. Laborious means a waste of manpower. During the process of flushing the pipeline, the instrument maintenance personnel cannot leave and need to always pay attention to the amount of waste liquid in the receiving plate to prevent the waste liquid from overflowing and polluting the test bench and the ground.

[0003] The harm to the body of the instrument maintenance personnel mainly has two aspects: (1) Chemical reagent damage of the fixed seat main body: The main components of the waste liquid flowing out of the spray needle are harmful organic solvents such as methanol and acetonitrile, and the generated aerosol will cause great harm to the human body and even cause cancer; (2) Noise damage of the waste liquid receiving bottle: The mass spectrometer needs to be kept in a high vacuum state during operation, which can only be achieved by continuous pumping of the vacuum pump. Due to the presence of multiple vacuum pumps in the mass spectrometry instrument room, the continuous noise in the room is always above 80 decibels. The instrument maintenance personnel need to work in the room for more than 30 minutes (the weekly maintenance takes longer), and this continuous noise value for a long time will cause damage to people's hearing. Summary of the Invention

[0004] 1. Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a device for receiving the effluent of a mass spectrometry spray needle and a drainage method, which can change the waste liquid treatment method of the spray needle, from the original manual moving and pouring to directional drainage, can automatically flush the pipeline for a long time, improve work efficiency; can appropriately liberate human resources, and the sealing cover of the waste liquid bottle can effectively prevent the volatilization of organic reagents, reduce the pollution of the air in the laboratory, and reduce the harm to the human body.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A device for receiving the effluent of a mass spectrometry spray needle, which is used to receive the waste liquid after flushing the sample injection pipeline of a mass spectrometer, is characterized by comprising:

[0009] A fixed seat main body, with a card slot drilled at the upper end of the fixed seat main body;

[0010] A waste liquid receiving bottle, which is snap-connected to the card slot. A sealing cover is hinged at the opening of the waste liquid receiving bottle. A buckle is connected between the sealing cover and the waste liquid receiving bottle. A diversion tube is inserted into the waste liquid receiving bottle. The end of the diversion tube far away from the waste liquid receiving bottle is fixedly connected with a positioning plug. A composite atomizer matching with the diversion tube is fixedly connected in the waste liquid receiving bottle. The composite atomizer includes a pair of demisting grilles. A positioning ball is snap-connected between the pair of demisting grilles. A plurality of diversion blades distributed in a circumferential manner are arranged outside the demisting grille, and the plurality of diversion blades are fixedly connected between the pair of demisting grilles;

[0011] A liquid discharging mechanism, which is fixedly installed at the bottom end of the waste liquid receiving bottle. The liquid discharging mechanism includes a positioning ring, and a central cover is fixedly connected to the center of the positioning ring. A liquid discharging tube matching with the central cover is fixedly connected to the bottom end of the waste liquid receiving bottle. An installation groove is drilled at the top end of the inner wall of the central cover, and a sealing plug is slidably connected in the installation groove; wherein, a diversion tube matching with the liquid discharging tube is fixedly connected in the card slot, and an adjusting rod is rotatably connected to the fixed seat main body. A plurality of diversion holes matching with the diversion tube are drilled on the adjusting rod to adjust the liquid discharging speed of the waste liquid; and,

[0012] A waste liquid collector, there is a waste liquid tube at the bottom end of the fixed seat main body. The waste liquid tube is connected to the diversion tube, and the waste liquid collector is snap-connected to the bottom end of the waste liquid tube.

[0013] Further, the volume of the waste liquid bucket is 2 - 3 times that of the waste liquid receiving bottle. A handle is fixedly connected to the outer wall of the waste liquid bucket. The bottom end of the waste liquid pipe extends into the waste liquid bucket by one - third. The waste liquid bucket has a much larger volume than the top - most waste liquid receiving bottle, so there is no need to pour it out each time. When the amount of liquid in the waste liquid bucket is sufficient, pour the organic waste liquid in the waste liquid bucket into a designated large - scale organic waste liquid collection bucket for unified treatment.

[0014] Further, an elastic PVC layer is laid on the inner wall of the card slot. A rubber layer is laid on the elastic PVC layer, and an anti - corrosion coating is applied on the rubber layer, so that the waste liquid receiving bottle can be stably fixed on the main body of the fixing seat.

[0015] Further, the waste liquid receiving bottle is made of plastic polymer material, with a height of 15 - 20 cm. A polytetrafluoroethylene coating is laid on the inner side of the waste liquid receiving bottle to reduce the damage of the waste liquid to the waste liquid receiving bottle.

[0016] Further, the demisting grille is a grille mesh ring. Both ends of the demisting grille are connected with PVC mesh membranes, and the aperture of the PVC mesh membranes is 100 - 200 nm, so that the water mist is turned into liquid droplets by the demisting grille, which is conducive to the sedimentation and accumulation of the waste liquid.

[0017] Further, a frosted coating is laid on the outer side of the sealing cover.

[0018] Further, a rubber sealing ring is fixedly connected to the inner side of the sealing cover to improve the sealing performance of the device.

[0019] Further, the positioning plug is a porous sponge block.

[0020] Further, a fixing ring matching the diversion tube is fixedly connected to the outer side of the positioning plug, and the fixing ring is clamped on the diversion tube, which is convenient for the positioning of the spray needle and the sealing during the diversion.

[0021] The present invention also provides a drainage method for the outflow liquid receiving device of the mass spectrometry spray needle provided above, which includes the following steps:

[0022] S1, The technician inserts the spray needle into the positioning plug, so that the outflow liquid of the spray needle flows into the waste liquid receiving bottle along the diversion tube;

[0023] S2, Through the acceleration of the diversion tube, the outflow liquid quickly enters the waste liquid receiving bottle. Through the buffering and shunting effects of the liquid entering the waste liquid receiving bottle, the fluid is dispersed by multiple times, so that the fluid is broken into water mist after entering the waste liquid receiving bottle to prevent liquid backflow. After the water mist falls, it deposits at the bottom end of the waste liquid receiving bottle, and finally through the siphon effect of the liquid discharge mechanism, it enters the main body of the fixing seat through the drainage tube.

[0024] In S3, the technician rotates the adjusting rod to make the drainage hole on the adjusting rod communicate with the drainage pipe, so that the liquid in the drainage pipe enters the waste liquid pipe and finally flows into the waste liquid bucket through the waste liquid pipe. The technician can rotate the angle of the adjusting rod as needed to adjust the drainage flow rate. When the technician rotates the adjusting rod by 180°, the drainage hole on the adjusting rod can be staggered from the drainage pipe to seal the drainage pipe. The technician can also press, pull or lift to make the drainage holes of different sizes on the adjusting rod match the drainage pipe to meet different drainage requirements.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the advantages of the present invention are as follows:

[0027] (1) This solution changes the waste liquid treatment method of the spray needle, from the original manual moving and pouring to directional drainage, which can automatically flush the pipeline for a long time, improve work efficiency; it can appropriately liberate human resources. The sealed cover of the waste liquid bottle can effectively prevent the volatilization of organic reagents, reduce the pollution of the air in the laboratory, and reduce the harm to the human body. It has low cost, is convenient to move, and has simple operation, and can be widely popularized.

[0028] (2) This solution uses a composite atomizer to break up the fluid introduced into the waste liquid receiving bottle through the diversion pipe into a mist shape, effectively preventing the backflow of the liquid entering the waste liquid receiving bottle, facilitating the rapid collection of waste liquid, and accelerating the liquid through the diversion pipe to improve the collection efficiency.

[0029] (3) This solution sets a liquid discharge mechanism at the bottom end of the waste liquid receiving bottle. Through the liquid discharge mechanism, a siphon effect is formed to ensure that the liquid in the waste liquid receiving bottle is fully discharged. The liquid discharge mechanism matches the drainage pipe on the fixed seat main body. By pressing the sealing plug, the liquid discharge pipe can be opened, so that the liquid discharge pipe can be sealed by the sealing plug after the waste liquid receiving bottle is removed.

[0030] (4) The positioning plug is a porous sponge block, and a fixing ring matching the diversion pipe is fixedly connected to the outside of the positioning plug. The fixing ring is clamped on the diversion pipe, which is convenient for the positioning of the spray needle and the sealing during the diversion. Description of the drawings

[0031] Figure 1 is a perspective view of the prestressed pipeline fixing device of the present invention;

[0032] Figure 2 is a sectional view of the prestressed pipeline fixing device of the present invention;

[0033] Figure 3 is Figure 2 the structural schematic diagram at A in

[0034] Figure 4 is Figure 2 the structural schematic diagram at B in

[0035] Figure 5 This is the top view of the defogging grille of the present invention.

[0036] 1 fixing seat main body, 2 waste liquid receiving bottle, 3 sealing cover, 4 buckle, 5 diversion pipe, 6 positioning plug, 7 composite atomizer, 701 defogging grille, 702 positioning ball, 703 shunt blade, 8 liquid discharge mechanism, 801 positioning ring, 802 central cover, 803 liquid discharge pipe, 804 sealing plug, 805 compression spring, 9 drainage pipe, 10 adjusting rod, 11 waste liquid pipe, 12 waste liquid barrel. Specific embodiments

[0037] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Embodiment 1: Please refer to Figure 1-2, A liquid receiving device for the effluent of a mass spectrometry spray needle, comprising a fixed seat main body 1. A clamping groove is formed at the upper end of the fixed seat main body 1, and a waste liquid receiving bottle 2 is clamped in the clamping groove. The waste liquid receiving bottle 2 is made of plastic polymer material and has a height of 15 - 20 cm. A polytetrafluoroethylene coating is laid on the inner side of the waste liquid receiving bottle 2 to reduce the damage of the waste liquid to the waste liquid receiving bottle 2. An elastic PVC layer is laid on the inner wall of the clamping groove, a rubber layer is laid on the elastic PVC layer, and an anti-corrosion coating is applied on the rubber layer, so that the waste liquid receiving bottle 2 can be stably fixed on the fixed seat main body 1. A sealing cover 3 is hinged at the opening of the waste liquid receiving bottle 2. A frosted coating is laid on the outer side of the sealing cover 3, and a rubber sealing ring is fixedly connected to the inner side of the sealing cover 3 to improve the sealing performance of the device. A buckle 4 is connected between the sealing cover 3 and the waste liquid receiving bottle 2. A diversion tube 5 is inserted into the waste liquid receiving bottle 2. The inside of the diversion tube 5 has a "Venturi tube" structure to accelerate the fluid through the diversion tube 5. One end of the diversion tube 5 away from the waste liquid receiving bottle 2 is fixedly connected with a positioning plug 6. The positioning plug 6 is a porous sponge block, and a fixing ring matching the diversion tube 5 is fixedly connected to the outer side of the positioning plug 6. The fixing ring is clamped on the diversion tube 5 to facilitate the positioning of the spray needle and the sealing during diversion. A composite atomizer 7 matching the diversion tube 5 is fixedly connected in the waste liquid receiving bottle 2;

[0041] Please refer to Figure 2-3 , The composite atomizer 7 includes a pair of demisting gratings 701. The demisting gratings 701 are grating mesh rings. Both ends of the demisting gratings 701 are connected with PVC mesh membranes. The pore diameter of the PVC mesh membranes is 100 - 200 nm, so that the water mist is dissipated into liquid droplets by the demisting gratings 701, which is conducive to the sedimentation and accumulation of waste liquid. A positioning ball 702 is clamped between the pair of demisting gratings 701. A plurality of diversion blades 703 distributed in a circular pattern are arranged on the outer side of the demisting gratings 701. The plurality of diversion blades 703 are fixedly connected between the pair of demisting gratings 701. A liquid discharge mechanism 8 is fixedly connected to the bottom end of the waste liquid receiving bottle 2,

[0042] In this solution, the composite atomizer 7 is used to disperse the fluid introduced into the waste liquid receiving bottle through the diversion tube 5 into a mist shape, effectively preventing the backflow of the liquid entering the waste liquid receiving bottle, facilitating the rapid collection of waste liquid, and accelerating the fluid through the diversion tube 5 to improve the collection efficiency.

[0043] Please refer to Figure 2-4 , The liquid discharge mechanism 8 includes a positioning ring 801. A central cover 802 is fixedly connected to the center of the positioning ring 801. A liquid discharge tube 803 matching the central cover 802 is fixedly connected to the bottom end of the waste liquid receiving bottle 2. An installation groove is formed at the top end of the inner wall of the central cover 802. A sealing plug 804 is slidably connected in the installation groove. A compression spring 805 is fixedly connected between the sealing plug 804 and the bottom end of the installation groove. A drainage tube 9 matching the liquid discharge tube 803 is fixedly connected in the clamping groove;

[0044] In this solution, a liquid discharge mechanism 8 is provided at the bottom of the waste liquid receiving bottle 2. Through the liquid discharge mechanism 8, a siphon effect is formed to ensure that the liquid in the waste liquid receiving bottle 2 is fully discharged. The liquid discharge mechanism 8 is matched with the drainage pipe 9 on the fixed seat main body 1. By pressing the sealing plug 804, the liquid discharge pipe 803 is opened, so that after the waste liquid receiving bottle 2 is removed, the liquid discharge pipe 803 can be closed by the sealing plug 804.

[0045] Please refer to Figure 2-5 , a regulating rod 10 is rotatably connected to the fixed seat main body 1. A slot matching the regulating rod 10 is formed on the fixed seat main body 1. A plurality of drainage holes matching the drainage pipe 9 are drilled on the regulating rod 10. A waste liquid pipe 11 is fixedly connected to the bottom end of the fixed seat main body 1. The guiding direction of the waste liquid pipe 11 is designed by those skilled in the art. A waste liquid bucket 12 is clamped at the bottom end of the waste liquid pipe 11. The volume of the waste liquid bucket 12 is 2-3 times that of the waste liquid receiving bottle 2. A handle is fixedly connected to the outer wall of the waste liquid bucket 12. The bottom end of the waste liquid pipe 11 extends into the waste liquid bucket 12 by one-third.

[0046] It can realize the change of the waste liquid treatment method of the spray needle, from the original manual moving and pouring to directional drainage, can automatically flush the pipeline for a long time, improve work efficiency; can appropriately liberate human power, the sealing cover of the waste liquid bottle can effectively prevent the volatilization of organic reagents, reduce the pollution of the air in the laboratory, and reduce the harm to the human body.

[0047] The present invention also proposes a drainage method for the above-mentioned outflow liquid receiving device of the mass spectrometry spray needle, and its steps include:

[0048] S1, the technician inserts the spray needle into the positioning plug 6, so that the outflow liquid of the spray needle flows into the waste liquid receiving bottle 2 along the diversion pipe 5;

[0049] S2, through the acceleration of the diversion pipe 5, the outflow liquid quickly enters the waste liquid receiving bottle 2. The liquid entering the waste liquid receiving bottle 2 is buffered and shunted by 704, so that the fluid is dispersed by a plurality of 704, and the fluid is broken into water mist after entering the waste liquid receiving bottle 2 to prevent liquid backflow. The water mist falls and deposits at the bottom end of the waste liquid receiving bottle 2, and finally enters the fixed seat main body 1 through the siphon action of the liquid discharge mechanism 8 through the drainage pipe 9;

[0050] S3, the technician rotates the regulating rod 10 to make the drainage holes on the regulating rod 10 communicate with the drainage pipe 9, so that the liquid in the drainage pipe 9 enters the waste liquid pipe 11, and finally is diverted into the waste liquid bucket 12 through the waste liquid pipe 11. The technician can rotate the angle of the regulating rod 10 as needed, 02 to adjust the drainage flow rate. When the technician rotates the regulating rod 10 by 180°, the drainage holes on the regulating rod 10 can be staggered from the drainage pipe 9 to close the drainage pipe 9. The technician can also press, pull or lift to make the drainage holes of different sizes on the regulating rod 10 match the drainage pipe 9 to adapt to different drainage needs.

[0051] As described above, it is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and its improved concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A receiving device for the effluent of a mass spectrometry spray needle, which is used to receive the waste liquid after flushing the injection pipeline of a mass spectrometer. Characterized in that: It includes: A fixed seat main body (1), with a card slot drilled at the upper end of the fixed seat main body (1); a waste liquid receiving bottle (2), which is clamped in the card slot. A sealing cover (3) is hinged at the opening of the waste liquid receiving bottle (2). A snap fastener (4) is connected between the sealing cover (3) and the waste liquid receiving bottle (2). A diversion tube (5) is inserted into the waste liquid receiving bottle (2). One end of the diversion tube (5) far away from the waste liquid receiving bottle (2) is fixedly connected with a positioning plug (6). A composite atomizer (7) matching the diversion tube (5) is fixedly connected in the waste liquid receiving bottle (2). The composite atomizer (7) includes a pair of demisting gratings (701). A positioning ball (702) is clamped between the pair of demisting gratings (701). A plurality of diversion blades (703) distributed in a circular pattern are arranged on the outer side of the demisting grating (701). The plurality of diversion blades (703) are fixedly connected between the pair of demisting gratings (701); a liquid discharge mechanism (8) is fixedly installed at the bottom end of the waste liquid receiving bottle (2). The liquid discharge mechanism (8) includes a positioning ring (801). A central cover (802) is fixedly connected to the center of the positioning ring (801). A liquid discharge pipe (803) matching the central cover (802) is fixedly connected to the bottom end of the waste liquid receiving bottle (2). An installation groove is drilled at the top end of the inner wall of the central cover (802). A sealing plug (804) is slidably connected in the installation groove; A compression spring (805) is fixedly connected between the sealing plug (804) and the bottom end of the installation groove; Among them, a diversion tube (9) matching the liquid discharge pipe (803) is fixedly connected in the card slot. An adjusting rod (10) is rotatably connected to the fixed seat main body (1). A plurality of diversion holes matching the diversion tube (9) are drilled on the adjusting rod (10) to adjust the liquid discharge speed of the waste liquid; and a waste liquid collector (12). There is a waste liquid pipe (11) at the bottom end of the fixed seat main body (1). The waste liquid pipe (11) is connected to the diversion tube (9). The waste liquid collector (12) is clamped to the bottom end of the waste liquid pipe (11); The bottom end of the waste liquid pipe (11) is clamped with a waste liquid bucket (12). The volume of the waste liquid bucket (12) is 2-3 times the volume of the waste liquid receiving bottle (2). A handle is fixedly connected to the outer wall of the waste liquid bucket (12). The bottom end of the waste liquid pipe (11) extends into the waste liquid bucket (12) by one-third.

2. The receiving device for the effluent of a mass spectrometry spray needle according to claim 1, Characterized in that: An elastic PVC layer is laid on the inner wall of the card slot. A rubber layer is laid on the elastic PVC layer. An anti-corrosion coating is applied on the rubber layer.

3. The receiving device for the effluent of a mass spectrometry spray needle according to claim 1, Characterized in that: The waste liquid receiving bottle (2) is made of a plastic polymer material, and its height is 15-20 cm. A polytetrafluoroethylene coating is laid on the inner side of the waste liquid receiving bottle (2).

4. The outflow liquid receiving device of the mass spectrometry spray needle according to claim 1, characterized in that: The demisting grille (701) is a grille mesh ring, and PVC mesh membranes are connected to both ends of the demisting grille (701), and the pore diameter of the PVC mesh membrane is 100 - 200 nm.

5. The outflow liquid receiving device of the mass spectrometry spray needle according to claim 1, characterized in that: A matte coating is laid on the outer side of the sealing cover (3).

6. The outflow liquid receiving device of the mass spectrometry spray needle according to claim 1, characterized in that: A rubber sealing ring is fixedly connected to the inner side of the sealing cover (3).

7. The outflow liquid receiving device of the mass spectrometry spray needle according to claim 1, characterized in that: The positioning plug (6) is a porous sponge block.

8. The outflow liquid receiving device of the mass spectrometry spray needle according to claim 1, characterized in that: A fixing ring matching the diversion tube (5) is fixedly connected to the outer side of the positioning plug (6), and the fixing ring is clamped on the diversion tube (5).

9. A drainage method for the outflow liquid receiving device of the mass spectrometry spray needle according to any one of claims 1 - 8, characterized in that, it includes the following steps: S1. The technician inserts the spray needle into the positioning plug (6), so that the outflow liquid of the spray needle flows into the waste liquid receiving bottle (2) along the diversion tube (5); S2. Through the acceleration of the diversion tube (5), the outflow liquid quickly enters the waste liquid receiving bottle (2). The liquid entering the waste liquid receiving bottle (2) is buffered and split by (704), so that the fluid is dispersed by multiple (704), and the fluid is broken into water mist after entering the waste liquid receiving bottle (2) to prevent liquid backflow. The water mist falls and deposits at the bottom end of the waste liquid receiving bottle (2), and finally enters the fixed seat main body (1) through the siphon effect of the drainage mechanism (8) through the drainage tube (9); S3. The technician rotates the adjusting rod (10) to make the drainage hole on the adjusting rod (10) communicate with the drainage tube (9), so that the liquid in the drainage tube (9) enters the waste liquid tube (11), and finally is drained into the waste liquid bucket (12) through the waste liquid tube (11). The technician can rotate the angle of the adjusting rod (10) as needed to adjust the drainage flow rate. When the technician rotates the adjusting rod (10) by 180°, the drainage hole on the adjusting rod (10) can be staggered from the drainage tube (9) to close the drainage tube (9). The technician can also press, pull or lift to make different sized drainage holes on the adjusting rod (10) match the drainage tube (9) to adapt to different drainage requirements.

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