A biological laboratory waste liquid automatic suction device

Abstract

The utility model relates to the technical field of waste liquid suction, in particular to an automatic waste liquid suction device for a biological laboratory, comprising a negative pressure suction device body, a fixing seat fixedly connected to the top of one side of the negative pressure suction device body, a mounting seat fixedly connected to the fixing seat, a collecting bottle arranged below the mounting seat, a threaded bottle mouth fixedly connected to the top of the collecting bottle, a connecting sleeve threadedly connected to the threaded bottle mouth fixedly connected to the bottom of the mounting seat, and a pipette fixedly connected to the mounting seat; the utility model uses the gravity of the counterweight sleeve to keep the pipette needle on the pipette in the biological experiment waste liquid at all times, and combines the vacuuming operation of the collection bottle by the negative pressure suction device body to realize the automatic suction and collection function without holding the pipette; by rotating the collection bottle and the mounting seat to separate the operation, the effect of fast classification, suction and collection of different types of biological experiment waste liquid is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid absorption, in particular to an automatic waste liquid absorption device for a biological laboratory. Background Art

[0002] The waste liquid suction device is designed to use a clean and professional method to perform biological / chemical fluid aspiration, waste liquid disposal or filtration. All application functions are integrated into a compact instrument that can be started by pressing a button.

[0003] Existing waste liquid suction devices for biological laboratories usually use a fixed and single collection cup to collect waste liquid, which makes it inconvenient to classify and collect waste liquids of different types of biological experiments; and in the process of sucking waste liquid of biological experiments, a handheld pipette is usually used to fix it to prevent the pipette from sliding and separating from the waste liquid. This method not only increases the labor intensity of the operator, but also may cause the waste liquid to splash due to improper operation;

[0004] In view of the above technical defects, a solution is now proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic suction device for waste liquid in a biological laboratory to solve the technical defects mentioned above. The utility model uses the gravity of the counterweight sleeve to keep the suction needle on the suction tube in the biological experiment waste liquid at all times, and combines the vacuum operation of the collection bottle by the negative pressure suction device body to realize the automatic suction and collection function without holding the suction tube; in the process of sucking the waste liquid, the bacteria, viruses and odorous gases in the waste liquid are effectively filtered and removed through the hydrophobic microbial filter and the deodorant in the deodorizing bottle respectively; by rotating the collection bottle and the mounting seat to separate the operation, the effect of rapid classification, suction and collection of different types of biological experiment waste liquid is realized.

[0006] This is achieved through the following technical solutions:

[0007] A biological laboratory waste liquid automatic suction device comprises a negative pressure suction equipment body, a fixing seat is fixedly connected to the top of one side of the negative pressure suction equipment body, and a mounting seat is fixedly connected to the fixing seat, a collecting bottle is arranged below the mounting seat, and a threaded bottle mouth is fixedly connected to the top of the collecting bottle, a connecting sleeve threadedly connected to the threaded bottle mouth is fixedly connected to the bottom of the mounting seat, a liquid suction pipe is fixedly connected to the mounting seat, and the liquid outlet end of the liquid suction pipe extends through the interior of the connecting sleeve, a liquid inlet end of the liquid suction pipe is fixedly connected to a liquid suction needle, a suction pipe 1 is arranged between the mounting seat and the negative pressure suction equipment body, and the air inlet end of the suction pipe 1 extends through the interior of the connecting sleeve.

[0008] Preferably, a weight sleeve is threadedly connected to the annular outer wall of the pipette needle, and a plurality of easing grooves are provided at the bottom of the weight sleeve, and a sealing cover is threadedly connected to the threaded bottle mouth.

[0009] Preferably, a floating block slidably connected to the liquid suction tube is fixedly connected to the top of the connecting sleeve via a telescopic sleeve rod, and a sealing sleeve is fixedly connected to the top of the floating block just below the suction end of the suction pipe.

[0010] Preferably, a deodorizing bottle is fixedly mounted on the top of the fixing seat, and a sealing plug is movably embedded in the top opening of the deodorizing bottle, an air inlet pipe and an air outlet pipe are fixedly mounted on the sealing plug, the air inlet end of the air inlet pipe is fixedly connected to the air outlet end of the first suction pipe, and the second suction pipe is fixedly connected between the air outlet pipe and the main body of the negative pressure suction equipment.

[0011] Preferably, the air outlet end of the air inlet pipe is fixedly connected to a spiral tube, a plurality of air outlet holes are penetrated through the outer wall of the spiral tube, and the free end of the spiral tube is a closed end, a deodorant is arranged in the deodorant bottle, and the liquid level of the deodorant is located between the air outlet pipe and the spiral tube.

[0012] Preferably, the air intake pipe is fixedly connected to a hydrophobic microorganism filter, and the hydrophobic microorganism filter is bolted on the top of the mounting seat.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) When the utility model is in use, the pipette needle on the pipette is always in the biological experiment waste liquid under the gravity of the weight sleeve, and the negative pressure suction device body is used to evacuate the inside of the collection bottle, so as to avoid holding the pipette and realize the effect of automatically sucking and collecting the biological experiment waste liquid; and in the process of sucking, as the liquid level of the biological experiment waste liquid in the collection bottle rises, the floating block is pushed up, thereby automatically pushing the sealing tube sleeve to close the suction tube, thereby avoiding the problem of continuous sucking of biological experiment waste liquid, which may easily cause damage to the negative pressure suction device body; and after the sucking is completed, the collection bottle is rotated to separate it from the mounting seat for replacement, so as to realize the effect of quickly sucking and collecting different types of biological experiment waste liquid;

[0015] (2) The negative pressure suction device of the utility model vacuumizes the inside of the collection bottle. During the process of sucking the biological experimental waste liquid, the bacteria and viruses in the waste liquid are discharged along with the gas in the collection bottle and effectively filtered through the hydrophobic microbial filter. The odor in the gas is discharged into the deodorant in the deodorizing bottle through the spiral tube and the air outlet over a large range, thereby achieving efficient removal of the odor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings;

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the mounting seat of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the liquid pipette of the utility model;

[0020] Figure 4 It is a schematic diagram of the disassembly of the mounting base and the collecting bottle of the utility model;

[0021] Figure 5 It is a structural schematic diagram of a deodorizing bottle of the utility model.

[0022] Legend:

[0023] 1. Negative pressure suction equipment body; 11. Fixed seat; 12. Deodorizing bottle; 13. Sealing plug; 14. Air inlet pipe; 15. Air outlet pipe; 16. Air suction pipe II; 17. Spiral tube; 18. Air outlet hole;

[0024] 2. Mounting seat; 21. Connecting sleeve; 22. Liquid suction tube; 23. Liquid suction needle; 24. Air suction tube 1; 25. Counterweight sleeve; 26. Make way slot; 27. Telescopic sleeve rod; 28. Floating block; 29. ​​Sealing sleeve; 210. Hydrophobic microbial filter;

[0025] 3. Collection bottle; 31. Threaded bottle mouth; 32. Sealing cap. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1: The problem that the fixed and single collection cup used in the prior art makes it inconvenient to classify and collect different types of biological experimental waste liquids can be solved by the following solution;

[0028] See also Figure 1 - Figure 5As shown, in this embodiment, an automatic waste liquid suction device for a biological laboratory comprises a negative pressure suction device body 1, a fixing seat 11 is fixedly connected to the top of one side of the negative pressure suction device body 1, and a mounting seat 2 is fixedly connected to the fixing seat 11, a collecting bottle 3 is arranged below the mounting seat 2, and a threaded bottle mouth 31 is fixedly connected to the top of the collecting bottle 3, and a connecting sleeve 21 threadedly connected to the threaded bottle mouth 31 is fixedly connected to the bottom of the mounting seat 2, and the threaded connection between the threaded bottle mouth 31 and the connecting sleeve 21 is made through the threaded connection between the threaded bottle mouth 31 and the connecting sleeve 21, so that when the waste liquid of the biological experiment is sucked and the remaining types are collected, the collecting bottle 3 is separated from the mounting seat 2 by rotating it, and the new collecting bottle 3 is replaced to realize the storage of the waste liquid of the current biological experiment after being sucked, and the collection of the remaining types is quickly carried out;

[0029] A liquid suction tube 22 is fixedly connected to the mounting base 2, and the liquid outlet end of the liquid suction tube 22 extends through the interior of the connecting sleeve 21, and a liquid suction needle 23 is fixedly connected to the liquid inlet end of the liquid suction tube 22, and an air suction tube 24 is arranged between the mounting base 2 and the negative pressure suction device body 1, and the air inlet end of the air suction tube 24 extends through the interior of the connecting sleeve 21, and the negative pressure suction device body 1 vacuumizes the inside of the collecting bottle 3 through the air suction tube 24, and the collecting bottle 3 in a negative pressure state extracts biological experimental waste liquid through the liquid suction tube 22, and the air suction end height of the air suction tube 24 is higher than the liquid level height of the biological experimental waste liquid in the collecting bottle 3, so as to avoid the problem of extracting the biological experimental waste liquid into the negative pressure suction device body 1 and causing damage to it.

[0030] A weight sleeve 25 is threadedly connected to the annular outer wall of the pipette needle 23, and a plurality of clearance grooves 26 are provided at the bottom of the weight sleeve 25. The pipette needle 23 on the pipette tube 22 is always in the biological experiment waste liquid under the gravity of the weight sleeve 25, thereby avoiding the need to hold the pipette tube 22 and achieving the effect of automatically sucking and collecting the biological experiment waste liquid. The clearance grooves 26 on the weight sleeve 25 are used for the biological experiment waste liquid to enter the weight sleeve 25 and contact the pipette needle 23, and the size of the clearance grooves 26 is small, which cooperates with the bottom of the biological experiment waste liquid container to block large particles of impurities in the waste liquid, and the threaded connection between the weight sleeve 25 and the pipette needle 23 is convenient for disassembly and assembly according to actual use requirements. The sealing cover 32 threadedly connected to the threaded bottle mouth 31 is threadedly connected to the threaded bottle mouth 31 through the sealing cover 32 after the collecting bottle 3 is separated from the mounting seat 2, so as to achieve sealed storage of the biological experiment waste liquid in the collecting bottle 3.

[0031] The top of the connecting sleeve 21 is fixedly connected to a floating block 28 that is slidably connected to the suction tube 22 through a telescopic sleeve rod 27. The top of the floating block 28 is fixedly connected to a sealing tube sleeve 29 just below the suction end of the suction tube 24. During the suction process of the biological experiment waste liquid, as the liquid level of the biological experiment waste liquid in the collecting bottle 3 rises, the floating block 28 is pushed up, thereby automatically pushing the sealing tube sleeve 29 to close the suction tube 24, thereby avoiding the problem of continuous suction of the biological experiment waste liquid, which may easily cause damage to the negative pressure suction equipment body 1.

[0032] A deodorizing bottle 12 is fixedly mounted on the top of the fixing seat 11, and a sealing plug 13 is movably embedded in the top opening of the deodorizing bottle 12, an air inlet pipe 14 and an air outlet pipe 15 are fixedly mounted on the sealing plug 13, the air inlet end of the air inlet pipe 14 is fixedly connected to the air outlet end of an air suction pipe 24, an air suction pipe 2 16 is fixedly connected between the air outlet pipe 15 and the negative pressure suction device body 1, the negative pressure suction device body 1 is started, the gas in the deodorizing bottle 12 is extracted through the air suction pipe 2 16 and the air outlet pipe 15, the negative pressure state in the deodorizing bottle 12, the collecting bottle 3 is vacuumized through the air inlet pipe 14 and the air suction pipe 24, and then the pipette 22 is cooperated to realize the extraction of biological experimental waste liquid.

[0033] The air outlet end of the air inlet pipe 14 is fixedly connected to a spiral tube 17, and a plurality of air outlet holes 18 are formed through the outer wall of the spiral tube 17, and the free end of the spiral tube 17 is a closed end. A deodorant is arranged in the deodorizing bottle 12, and the liquid level of the deodorant is located between the air outlet pipe 15 and the spiral tube 17. When the gas in the collecting bottle 3 is extracted, the biological experiment waste liquid enters the collecting bottle 3, so that the gas in the collecting bottle 3 contains odor, and the odor in the gas flows with the gas and is discharged into the deodorant in the deodorizing bottle 12 through the plurality of air outlet holes 18 on the spiral tube 17 on a large scale. With the help of the deodorant, a chemical reaction is carried out to achieve efficient removal of the odor. The specific type of the deodorant is set accordingly according to the actual waste liquid composition.

[0034] A hydrophobic microbial filter 210 is fixedly connected to the suction pipe 24, and the hydrophobic microbial filter 210 is bolted to the top of the mounting base 2. The biological experiment waste liquid enters the collecting bottle 3, so that the gas in the collecting bottle 3 contains some bacteria and viruses. The bacteria and viruses in the waste liquid are discharged together with the gas in the collecting bottle 3 and are effectively filtered through the hydrophobic microbial filter 210.

[0035] The working process and principle of the utility model are as follows:

[0036] During use, the sealing plug 13 at the top opening of the deodorizing bottle 12 is opened, and a deodorant adapted to the components of the corresponding biological experiment waste liquid is placed inside the deodorizing bottle 12, and the liquid level of the deodorant is located between the air outlet pipe 15 and the spiral tube 17, and the liquid suction needle 23 on the liquid suction tube 22 is placed in the biological experiment waste liquid, and under the gravity of the weight sleeve 25, the liquid suction needle 23 is always in the biological experiment waste liquid;

[0037] The negative pressure suction device body 1 extracts the gas in the deodorizing bottle 12 by means of the suction pipe 16 and the outlet pipe 15, so that the deodorizing bottle 12 is first in a negative pressure state, and then the collection bottle 3 is vacuumed by means of the air inlet pipe 14 and the suction pipe 1 24. The collection bottle 3 in a negative pressure state extracts the biological experiment waste liquid through the liquid suction pipe 22 and the liquid suction needle 23, and the bacteria, viruses and odor contained in the biological experiment waste liquid enter the collection bottle 3 simultaneously;

[0038] As the gas in the collection bottle 3 is discharged, some bacteria and viruses in the gas in the collection bottle 3 enter the hydrophobic microbial filter 210 through the air intake pipe 24 for effective filtration, and the odor contained in the gas enters the spiral tube 17 through the air intake pipe 24 and the air intake pipe 14, and is discharged to the deodorant in the deodorizing bottle 12 through the multiple air outlet holes 18 on the spiral tube 17. With the help of the deodorant and the deodorant, the deodorant reacts chemically with the deodorant to achieve efficient removal of the odor;

[0039] As the level of the biological experiment waste liquid in the collecting bottle 3 rises, the floating block 28 will be pushed up, thereby automatically pushing the sealing tube sleeve 29 to close the suction tube 24, thereby avoiding continuous suction of the biological experiment waste liquid. After the waste gas suction is completed, the collecting bottle 3 is separated from the mounting base 2 by rotating it, and a new collecting bottle 3 is replaced to carry out classified suction of different types of biological experiment waste liquid.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A biological laboratory waste liquid automatic suction device, comprising a negative pressure suction device body (1), characterized in that: A fixing seat (11) is fixedly connected to the top of one side of the negative pressure suction device body (1), and a mounting seat (2) is fixedly connected to the fixing seat (11); a collecting bottle (3) is arranged below the mounting seat (2), and the top of the collecting bottle (3) is fixedly connected to a threaded bottle mouth (31); a connecting sleeve (21) threadedly connected to the threaded bottle mouth (31) is fixedly connected to the bottom of the mounting seat (2); a liquid suction tube (22) is fixedly connected to the mounting seat (2), and the liquid outlet end of the liquid suction tube (22) extends through the interior of the connecting sleeve (21); a liquid inlet end of the liquid suction tube (22) is fixedly connected to a liquid suction needle (23); a suction tube (24) is arranged between the mounting seat (2) and the negative pressure suction device body (1), and the air inlet end of the suction tube (24) extends through the interior of the connecting sleeve (21).

2. The automatic waste liquid suction device for biological laboratories according to claim 1 is characterized in that: A weight sleeve (25) is threadedly connected to the annular outer wall of the pipette needle (23), and a plurality of paving grooves (26) are provided at the bottom of the weight sleeve (25). A sealing cover (32) is threadedly connected to the threaded bottle mouth (31).

3. The automatic waste liquid suction device for biological laboratories according to claim 1 is characterized in that: A floating block (28) slidably connected to the liquid suction pipe (22) is fixedly connected to the top of the connecting sleeve (21) via a telescopic sleeve rod (27), and a sealing pipe sleeve (29) is fixedly connected to the top of the floating block (28) and located just below the suction end of the suction pipe (24).

4. The automatic waste liquid suction device for biological laboratories according to claim 1 is characterized in that: A deodorizing bottle (12) is fixedly mounted on the top of the fixing seat (11), and a sealing plug (13) is movably embedded in the top opening of the deodorizing bottle (12), an air inlet pipe (14) and an air outlet pipe (15) are fixedly mounted on the sealing plug (13), the air inlet end of the air inlet pipe (14) is fixedly connected to the air outlet end of the first suction pipe (24), and the second suction pipe (16) is fixedly connected between the air outlet pipe (15) and the negative pressure suction device body (1).

5. The automatic waste liquid suction device for biological laboratories according to claim 4 is characterized in that: The air outlet end of the air inlet pipe (14) is fixedly connected to a spiral tube (17), a plurality of air outlet holes (18) are formed through the outer wall of the spiral tube (17), and the free end of the spiral tube (17) is a closed end. A deodorant is arranged in the deodorant bottle (12), and the liquid level of the deodorant is located between the air outlet pipe (15) and the spiral tube (17).

6. The automatic waste liquid suction device for biological laboratories according to claim 1 is characterized in that: The first air intake pipe (24) is fixedly connected to a hydrophobic microbial filter (210), and the hydrophobic microbial filter (210) is bolted to the top of the mounting seat (2).

Images