Device for recovering waste liquid after detection of biological instrument

Abstract

A waste liquid recovery device after biological instrument detection comprises a top box and a bottom box, the top box is fixed to the upper end of the bottom box, a discharging pipe is arranged at the lower end of the bottom box, a second valve is arranged on the discharging pipe, a filtering assembly is arranged on the top box, and a medicine adding assembly is arranged on the bottom box. When the filter cartridge needs to be replaced, the top box or the U-shaped liquid inlet pipe does not need to be detached, the filter cartridge containing particle impurities can be located between the water outlet pipe and the flow dividing pipe, at the moment, the first positioning ring and the second positioning ring can be attached to the two limiting rings respectively, and at the moment, the other sleeve can be communicated with the cavity again. The filter cartridge is more convenient to replace, so that the filtering efficiency of the equipment on waste liquid generated after detection of a biological instrument can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste liquid treatment and recovery, in particular to a device for recovering waste liquid after biological instrument detection. Background Art

[0002] Biological testing is to use the reaction of biological individuals, populations and communities to environmental pollution or changes to clarify the environmental pollution status and provide a basis for monitoring and evaluation of environmental quality from a biological perspective. Waste liquid recovery refers to the use of physical, chemical and biological methods to treat waste liquid, purify the liquid, reduce pollution, and achieve waste liquid recovery and reuse, making full use of water resources;

[0003] The patent with the publication number CN215365324U proposes a waste liquid recovery device after biological instrument detection, including a filter box, a stirring mechanism, a filter screen and a water pump. A microorganism purification box is arranged on one side of the filter box, and a water inlet is fixedly opened on the side of the filter box away from the microorganism purification box. The beneficial effects achieved by the utility model are as follows: by setting the filter box, the microorganism purification box, the PH neutralization box and the stirring mechanism, the sponge filter blocks on the fixed plate arranged in a staggered distribution in the filter box are used to filter out solid impurities, and the rotating rod and the spiral blade are driven by the motor to rotate, so that the waste liquid in the microorganism purification box and the PH neutralization box fully reacts with the purifier and the neutralizer, so that the waste liquid recovery device fully purifies the waste liquid, and the waste liquid is purified layer by layer through the filter box, the microorganism purification box and the PH neutralization box. The harmful substances in the waste liquid are avoided from exceeding the standard, so that the waste liquid meets the environmental protection standard, and the purified waste liquid can be reused;

[0004] When the above structure is in use, first, the sponge filter block is inside the box. When the sponge filter block needs to be replaced, the box needs to be disassembled, which makes the sponge filter block inconvenient to replace. When the sponge filter block is replaced, the equipment cannot be used any further. Therefore, the efficiency of replacing the filter plate is too low, which will reduce the equipment's efficiency in treating waste liquid. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies of the prior art, the present invention provides a device for recovering waste liquid after biological instrument detection.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a waste liquid recovery device after biological instrument detection, comprising a top box and a bottom box, wherein the top box is fixed to the upper end of the bottom box, a discharge pipe is provided at the lower end of the bottom box, a second valve is provided on the discharge pipe, a filter assembly is provided on the top box, and a dosing assembly is provided on the bottom box;

[0009] The filter assembly includes a U-shaped liquid inlet pipe, a positioning shaft, a flushing pipe and two water outlet pipes, the middle part of the U-shaped liquid inlet pipe is provided with a feed pipe, two cavities are symmetrically arranged on the top of the top box, the two ends of the U-shaped liquid inlet pipe are connected with the two cavities, two support frames are symmetrically arranged on the upper end of the top box, the two ends of the positioning shaft are rotatably connected to the support frames, and a driven gear disc is fixedly arranged at one end of the positioning shaft, a first motor is fixedly arranged on one side of the top box, a driving gear disc is arranged at the output end of the first motor, and the driving gear disc is connected with the driven gear disc through a chain, two limit frames are symmetrically arranged on the positioning shaft, and two sleeves are symmetrically arranged at both ends of the limit frame, a filter cartridge is arranged inside the sleeve, a transverse tube is arranged at one end of the sleeve, a first positioning ring is arranged at the other end of the sleeve, and a second positioning ring is arranged at the end of the transverse tube away from the sleeve;

[0010] The two water outlet pipes are respectively fixed to the two sides of the top box through the first support rod, the flushing pipe is fixed to the top of the top box through the second support rod, one end of the flushing pipe is provided with a shunt pipe, both ends of the shunt pipe and one end of the water outlet pipe are provided with limiting rings, the two limiting rings can respectively fit with the first positioning ring and the second positioning ring, a first liquid supply pump is fixedly arranged on one side of the top box, and the liquid outlet end of the first liquid supply pump is provided with a first conduit connected to the flushing pipe;

[0011] The dosing assembly includes a feeding pipe, a second liquid supply pump and a second motor. The feeding pipe can pass through the bottom box and be inserted into the interior of the bottom box and the top box. The feeding pipe is rotatably connected to the bottom box. A first valve and a gear ring are provided at the bottom of the feeding pipe, and the gear ring is located above the first valve. A driving disk meshing with the gear ring is provided at the output end of the second motor. A second conduit is provided at the discharge end of the second liquid supply pump, and the second conduit can be connected to the bottom of the feeding pipe. A plurality of stirring tubes are provided on the feeding pipe, a dosing tube is provided at the outer end of the stirring tube, and a plurality of discharge holes are provided on the dosing tube.

[0012] In order to facilitate the assembly of the top box and the U-shaped liquid inlet pipe, the present invention has the following improvements: a positioning plate is provided at the lower end of the top box, and the positioning plate is fixed to the upper end of the bottom box by bolts.

[0013] In order to facilitate the assembly of the filter cartridge in the sleeve, the improvements of the present invention are that the outer wall of the filter cartridge is threadedly connected to the inner wall of the sleeve, and one end of the cross tube is provided with a first adapter tube threadedly connected to the sleeve, and the bottom of the filter cartridge is provided with a toggle block located in the middle part of the filter cartridge, and corresponding indicator arrows are provided on the outer wall of the first adapter tube and the outer wall of the sleeve.

[0014] In order to prevent the waste liquid in the U-shaped liquid inlet pipe from easily entering the interior of the stirring tube, the improvements of the present invention are that a second adapter sleeve is provided on the dosing tube, the second adapter sleeve is threadedly connected to the outer end of the stirring tube, a positioning block and a baffle are provided inside the dosing tube, a plurality of positioning tubes are provided on the positioning block, a spring is provided inside the positioning tube, and a plurality of support rods inserted into the interior of the positioning tube and connected to one end of the spring are provided on the circumferential side of the baffle.

[0015] Furthermore, the present invention is improved in that a fixing ring is provided inside the medicine outlet hole, the fixing ring is threadedly connected to the medicine adding pipe inside the medicine outlet hole, and a plurality of elastic baffles with fan-shaped structures are provided inside the fixing ring.

[0016] In order to ensure the sealing between the first positioning ring and the cavity and the limiting ring at one end of the water outlet pipe, and the sealing between the second positioning ring and the limiting ring at one end of the diversion pipe, the improvement of the present invention is that a sealing ring is provided on one side of the first positioning ring and the second positioning ring.

[0017] Furthermore, the present invention is improved in that one side of the first positioning ring and the second positioning ring is provided with an annular groove, and the sealing ring is bonded inside the annular groove.

[0018] Furthermore, the present invention is improved in that the first motor and the second motor are both servo motors, and the first valve and the second valve are both solenoid valves.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides a waste liquid recovery device after biological instrument detection, which has the following beneficial effects:

[0021] Starting the first motor can make the filter cartridge containing particulate impurities be located between the outlet pipe and the diversion pipe. At this time, the first positioning ring and the second positioning ring will fit with the two limit rings respectively. At this time, the other sleeve will be reconnected with the cavity. When the filter cartridge needs to be replaced, there is no need to disassemble the top box or the U-shaped liquid inlet pipe, which can make the filter cartridge more convenient to replace, thereby improving the filtering efficiency of the device for waste liquid generated after the biological instrument detection;

[0022] Starting the first liquid supply pump can flush the impurities stored in the filter cartridge into the designated storage container through the water outlet pipe, so that the filter cartridge can be cleaned immediately after use. The cleaning process does not require much manual participation, which not only saves labor but also has high cleaning efficiency and does not require frequent disassembly of the filter cartridge, thereby further improving the filtering efficiency of the device for waste liquid;

[0023] The chemical treatment agent will flow out at multiple drug outlets. Since multiple dosing pipes are evenly distributed at multiple locations inside the top box and the bottom box, the mixing efficiency of the subsequent chemical treatment agent and wastewater can be improved, thereby improving the subsequent wastewater purification efficiency;

[0024] When the addition of the pharmaceutical solution is completed, the spring is reset, which can reset the baffle in the dosing tube. At this time, the baffle can provide a blocking effect for the stirring tube, so that the water in the top box and the bottom box will not flow into the inside of the stirring tube. At this time, multiple elastic baffles are also in a closed state, which can further prevent the water in the top box and the bottom box from entering the inside of the dosing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 For the present invention Figure 1 Side view of

[0027] Figure 3 It is a schematic diagram of the structure of the cavity in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the baffle in the present invention;

[0029] Figure 5 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0030] Figure 6 Schematic diagram of the internal structure of the sleeve in the present invention;

[0031] Figure 7 It is a structural schematic diagram of the stirring assembly in the present invention;

[0032] Figure 8 This is a schematic diagram of the internal structure of the dosing tube in the present invention;

[0033] Fig. 9 It is a schematic diagram of the installation structure of the elastic baffle in the present invention;

[0034] Fig.10 It is a structural schematic diagram of the arrows indicated in the present invention;

[0035] In the figure: 1, top box; 2, U-shaped liquid inlet pipe; 3, feed pipe; 4, cavity; 5, support frame; 6, positioning shaft; 7, driven gear plate; 8, chain; 9, first motor; 10, driving gear plate; 11, limit frame; 12, sleeve; 13, first positioning ring; 14, cross pipe; 15, second positioning ring; 16, first adapter sleeve; 17, filter cartridge; 18, toggle block; 19, flushing pipe; 20, shunt pipe; 21, water outlet pipe; 22, first liquid supply Pump; 23, first conduit; 24, feeding pipe; 25, first valve; 26, baffle; 27, support rod; 28, gear ring; 29, second motor; 30, drive plate; 31, second liquid supply pump; 32, second conduit; 33, stirring pipe; 34, feeding pipe; 35, second adapter sleeve; 36, positioning block; 37, discharge pipe; 38, second valve; 39, medicine outlet; 40, fixing ring; 41, elastic baffle; 42, bottom box; 43, positioning pipe. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-10 The present invention provides a waste liquid recovery device after biological instrument detection, comprising a top box 1 and a bottom box 42, wherein the top box 1 is fixed to the upper end of the bottom box 42, a discharge pipe 37 is provided at the lower end of the bottom box 42, a second valve 38 is provided on the discharge pipe 37, a filter assembly is provided on the top box 1, and a dosing assembly is provided on the bottom box 42;

[0038] The filter assembly includes a U-shaped liquid inlet pipe 2, a positioning shaft 6, a flushing pipe 19 and two water outlet pipes 21, a feed pipe 3 is provided in the middle part of the U-shaped liquid inlet pipe 2, two cavities 4 are symmetrically arranged on the top of the top box 1, and the two ends of the U-shaped liquid inlet pipe 2 are connected with the two cavities 4, two support frames 5 are symmetrically arranged on the upper end of the top box 1, the two ends of the positioning shaft 6 are rotatably connected with the support frames 5, and a driven gear disc 7 is fixedly arranged at one end of the positioning shaft 6, a first motor 9 is fixedly arranged on one side of the top box 1, a driving gear disc 10 is arranged at the output end of the first motor 9, and the driving gear disc 10 is connected with the driven gear disc 7 through a chain 8, two limiting frames 11 are symmetrically arranged on the positioning shaft 6, two sleeves 12 are symmetrically arranged at both ends of the limiting frame 11, a filter cartridge 17 is arranged inside the sleeve 12, a transverse tube 14 is arranged at one end of the sleeve 12, a first positioning ring 13 is arranged at the other end of the sleeve 12, and a second positioning ring 15 is arranged at the end of the transverse tube 14 away from the sleeve 12;

[0039] The two water outlet pipes 21 are respectively fixed on both sides of the top box 1 through the first support rod, and the flushing pipe 19 is fixed on the top of the top box 1 through the second support rod. A shunt pipe 20 is provided at one end of the flushing pipe 19, and both ends of the shunt pipe 20 and one end of the water outlet pipe 21 are provided with limiting rings. The two limiting rings can fit with the first positioning ring 13 and the second positioning ring 15 respectively. A first liquid supply pump 22 is fixedly arranged on one side of the top box 1, and a first conduit 23 connected to the flushing pipe 19 is provided at the liquid outlet end of the first liquid supply pump 22;

[0040] The dosing assembly includes a feeding pipe 24, a second liquid supply pump 31 and a second motor 29. The feeding pipe 24 can penetrate the bottom box 42 and be inserted into the bottom box 42 and the top box 1. The feeding pipe 24 is rotatably connected to the bottom box 42. A first valve 25 and a gear ring 28 are provided at the bottom of the feeding pipe 24, and the gear ring 28 is located above the first valve 25. A driving disk 30 meshing with the gear ring 28 is provided at the output end of the second motor 29. A second conduit 32 is provided at the discharge end of the second liquid supply pump 31, and the second conduit 32 can be communicated with the bottom of the feeding pipe 24. A plurality of stirring tubes 33 are provided on the feeding pipe 24, and a dosing pipe 34 is provided at the outer end of the stirring pipe 33. A plurality of discharge holes 39 are provided on the dosing pipe 34.

[0041] When the present structure is in use, the waste liquid generated after the biological instrument is tested flows into the inside of the feed pipe 3 through the designated transfer pipe, and then flows into the inside of the sleeve 12 at the two cavities 4 through the U-shaped liquid inlet pipe 2. At this time, the waste liquid flowing into the top box 1 and the U-shaped liquid inlet pipe 2 can be filtered through the filter cartridge 17. The specific shapes of the top box 1 and the bottom box 42 are not mandatory here. The particulate impurities in the waste liquid include cell suspensions, sediments, undissolved particles remaining in chemical reagents, etc. The filtered particulate impurities will accumulate in the filter cartridge 17. The sizes of the sleeve 12, the filter cartridge 17, the cross pipe 14, the diversion pipe 20 and the outlet pipe 21 are not mandatory here, and they can be customized according to the flow rate of the waste liquid. However, after the waste liquid has been added for a period of time, the first motor 9 is started, and the driving gear disc 10 can drive the driven gear disc 7 to rotate the toggle block 180 degrees through the chain 8, and further the positioning shaft 6 can drive the two limit frames 11 to rotate 180 degrees, so that the filter cartridge 17 containing particulate impurities can be located between the outlet pipe 21 and the diversion pipe 20. At this time, the first positioning ring 13 and the second positioning ring 15 will fit with the two limit rings respectively, and the other sleeve 12 will be reconnected with the cavity 4. When the filter cartridge 17 needs to be replaced, there is no need to disassemble the top box 1 or the U-shaped liquid inlet pipe 2, which can make the filter cartridge 17 more convenient to replace, thereby improving the filtering efficiency of the device for the waste liquid generated after the biological instrument detection;

[0042] When the filter cartridge 17 containing particulate impurities is between the outlet pipe 21 and the shunt pipe 20, the transfer pipe on the water inlet end of the first liquid supply pump 22 is connected to the designated water storage container, and the first liquid supply pump 22 is started, so that the cleaning liquid can be pumped into the first conduit 23 through the first liquid supply pump 22, and then flow into the shunt pipe 20 through the flushing pipe 19, and the two filter cartridges 17 can be reversely flushed at both ends of the shunt pipe 20, and the impurities stored in the filter cartridge 17 can be flushed into the designated storage container through the outlet pipe 21, so that the filter cartridge 17 can be easily cleaned immediately after use, and the cleaning process does not require much manual participation, which not only saves labor, but also has high cleaning efficiency, and does not require frequent disassembly of the filter cartridge 17, thereby further improving the filtering efficiency of the device for waste liquid;

[0043] The transfer tube on the feed end of the second liquid supply pump 31 is connected to the designated chemical agent container. The chemical agent container includes a neutralizer solution storage container, a disinfectant solution storage container, an oxidant solution storage container, etc. The filtered waste liquid will be stored inside the bottom box 42 and the top box 1. When the waste liquid in the bottom box 42 and the top box 1 reaches the designated liquid level, the second conduit 32 is connected to the feeding pipe 24 (the second conduit 32 and the feeding pipe 24 are connected by conventional pipe connection methods, such as thread connection, flange connection, and quick plug connection, etc.). At this time, the chemical treatment agent will flow out at multiple drug outlets 39. Since the multiple feeding pipes 34 are evenly distributed at multiple positions inside the top box 1 and the bottom box 42, the mixing efficiency of the subsequent chemical treatment agent and the wastewater can be improved, thereby improving the subsequent wastewater purification efficiency;

[0044] After the dosing is completed, the second motor 29 is started, so that the driving disc 30 drives the gear ring 28 to rotate, so that the feeding tube 24 drives the multiple stirring tubes 33 and the dosing tube 34 to rotate inside the top box 1 and the bottom box 42, which can provide a mixing effect for the waste liquid in the top box 1 and the bottom box 42, so that the waste liquid can be fully contacted with the chemical treatment agent, so that the waste liquid can be purified more thoroughly;

[0045] During the purification process of the waste liquid generated after the biological instrument detection, the neutralizer is added. When treating the waste liquid generated after the biological instrument detection, it is mainly used to adjust the pH value of the waste liquid. When treating the waste liquid generated after the biological instrument detection, the disinfectant is mainly used to eliminate or inhibit microorganisms, viruses and other pathogens in the waste liquid. The oxidant can effectively oxidize organic compounds in the waste liquid, including macromolecular organic matter, dyes and some cell metabolites. These reactions usually degrade organic matter into carbon dioxide, water and other harmless low-molecular substances, thereby reducing the organic load of the waste liquid. When the waste liquid is treated, the second valve 38 is opened to discharge the treated waste liquid through the discharge pipe 37 to the designated wastewater recovery equipment.

[0046] In this embodiment, a positioning plate is provided at the lower end of the top box 1, and the positioning plate is fixed to the upper end of the bottom box 42 by bolts. The bolt fixing method can facilitate the assembly of the top box 1 on the bottom box 42, and can facilitate the segmented cleaning of the top box 1 and the bottom box 42.

[0047] When the filter cartridge 17 is damaged or has no further use value, the filter cartridge 17 needs to be replaced. The outer wall of the filter cartridge 17 is threadedly connected to the inner wall of the sleeve 12, and one end of the cross tube 14 is provided with a first adapter tube threadedly connected to the sleeve 12. The bottom of the filter cartridge 17 is provided with a toggle block 18 located in the middle part of the filter cartridge 17. The outer wall of the first adapter tube and the outer wall of the sleeve 12 are provided with corresponding indicator arrows. First, the cross tube 14 is rotated to disassemble the first adapter tube at the bottom end of the sleeve 12. Then, the filter cartridge 17 is rotated by the toggle block 18 to pull the filter cartridge 17 out of the sleeve 12, so that the filter cartridge 17 can be easily replaced. The position of the cross tube 14 can be more accurately docked at one end of the sleeve 12 through the indicator arrow.

[0048] In this embodiment, the dosing tube 34 is provided with a second adapter sleeve 35, and the second adapter sleeve 35 is threadedly connected to the outer end of the stirring tube 33. The dosing tube 34 is provided with a positioning block 36 and a baffle 26 inside. The positioning block 36 is provided with a plurality of positioning tubes 43, and a spring is provided inside the positioning tube 43. The peripheral side of the baffle 26 is provided with a plurality of support rods 27 inserted into the positioning tube 43 and connected to one end of the spring. The inside of the medicine outlet 39 is provided with a fixing ring 40, and the fixing ring 40 is threadedly connected to the dosing tube 34 inside the medicine outlet 39, and the inside of the fixing ring 40 is provided with a plurality of elastic baffles 41 with a fan-shaped structure. When the dosing component is in use, the second liquid supply pump 31 is started, so that the pharmaceutical solution can provide a thrust to the baffle 26. When the thrust is greater than the spring When the elastic force is , the support rod 27 can stretch the spring in the positioning tube 43, so that the baffle 26 can contact one end of the dosing tube 34. At this time, the pharmaceutical solution will be sprayed out at multiple drug outlet holes 39, and multiple elastic baffles 41 can be deformed and opened. When the pharmaceutical solution is added, the second conduit 32 is disconnected from the feeding tube 24, and then the first valve 25 is closed. During this process, when there is no pharmaceutical solution in the stirring tube 33, the spring is reset at this time, and the baffle 26 can be reset in the dosing tube 34. At this time, the baffle 26 can provide a blocking effect for the stirring tube 33, so that the water in the top box 1 and the bottom box 42 will not flow into the inside of the stirring tube 33, and at this time, multiple elastic baffles 41 are also in a closed state, which can further prevent the water in the top box 1 and the bottom box 42 from entering the inside of the dosing tube 34.

[0049] In the present embodiment, a sealing ring is provided on one side of the first positioning ring 13 and the second positioning ring 15, and an annular groove is provided on one side of the first positioning ring 13 and the second positioning ring 15. The sealing ring is bonded to the inside of the annular groove, and a rubber sealing ring can be used for the sealing ring. The annular groove can make the sealing ring more firmly installed on the first positioning ring 13 and the second positioning ring 15. When the sleeve 12 is connected with the cavity 4, the sealing ring on the first positioning ring 13 will be squeezed. When the sleeve 12 is connected with the water outlet pipe 21 and the diversion pipe 20, the sealing rings on the first positioning ring 13 and the second positioning ring 15 will be squeezed, thereby ensuring the sealing between the first positioning ring 13 and the cavity 4 and the limiting ring at one end of the water outlet pipe 21, and the sealing between the second positioning ring 15 and the limiting ring at one end of the diversion pipe 20.

[0050] In this embodiment, the first motor 9 and the second motor 29 can both be servo motors, and the first valve 25 and the second valve 38 can both be solenoid valves. The servo motor can achieve high-precision position, speed and torque control, and the solenoid valve has a simple structure, easy maintenance, low failure rate and high reliability.

[0051] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A waste liquid recovery device after biological instrument detection, comprising a top box (1) and a bottom box (42), wherein the top box (1) is fixed to the upper end of the bottom box (42), a discharge pipe (37) is provided at the lower end of the bottom box (42), and a second valve (38) is provided on the discharge pipe (37), characterized in that: The top box (1) is provided with a filtering component, and the bottom box (42) is provided with a dosing component; The filter assembly comprises a U-shaped liquid inlet pipe (2), a positioning shaft (6), a flushing pipe (19) and two water outlet pipes (21); a feed pipe (3) is provided in the middle portion of the U-shaped liquid inlet pipe (2); two cavities (4) are symmetrically arranged on the top of the top box (1); the two ends of the U-shaped liquid inlet pipe (2) are connected to the two cavities (4); two support frames (5) are symmetrically arranged on the upper end of the top box (1); the two ends of the positioning shaft (6) are rotatably connected to the support frames (5); a driven gear disc (7) is fixedly arranged at one end of the positioning shaft (6); and a first electric The motor (9) comprises a driving gear disc (10) at the output end of the first motor (9), the driving gear disc (10) being connected to the driven gear disc (7) through a chain (8), two limiting frames (11) being symmetrically arranged on the positioning shaft (6), two sleeves (12) being symmetrically arranged at both ends of the limiting frames (11), a filter cartridge (17) being arranged inside the sleeve (12), a transverse tube (14) being arranged at one end of the sleeve (12), a first positioning ring (13) being arranged at the other end of the sleeve (12), and a second positioning ring (15) being arranged at the end of the transverse tube (14) away from the sleeve (12); The two water outlet pipes (21) are respectively fixed on both sides of the top box (1) through a first support rod, the flushing pipe (19) is fixed on the top of the top box (1) through a second support rod, one end of the flushing pipe (19) is provided with a shunt pipe (20), both ends of the shunt pipe (20) and one end of the water outlet pipe (21) are provided with limiting rings, the two limiting rings can respectively fit with the first positioning ring (13) and the second positioning ring (15), a first liquid supply pump (22) is fixedly arranged on one side of the top box (1), and a first conduit (23) connected to the flushing pipe (19) is provided at the liquid outlet end of the first liquid supply pump (22); The dosing assembly comprises a dosing pipe (24), a second liquid supply pump (31) and a second motor (29). The dosing pipe (24) can penetrate the bottom box (42) and be inserted into the inside of the bottom box (42) and the top box (1). The dosing pipe (24) is rotatably connected to the bottom box (42). A first valve (25) and a gear ring (28) are provided at the bottom of the dosing pipe (24), and the gear ring (28) is located above the first valve (25). A driving disc (30) meshing with the gear ring (28) is provided at the output end of the second motor (29). A second conduit (32) is provided at the discharge end of the second liquid supply pump (31), and the second conduit (32) can be communicated with the bottom of the dosing pipe (24). A plurality of stirring pipes (33) are provided on the dosing pipe (24), and a dosing pipe (34) is provided at the outer end of the stirring pipe (33). A plurality of drug outlet holes (39) are provided on the dosing pipe (34).

2. The waste liquid recovery device after biological instrument detection according to claim 1 is characterized in that: A positioning plate is provided at the lower end of the top box (1), and the positioning plate is fixed to the upper end of the bottom box (42) by means of bolts.

3. The waste liquid recovery device after biological instrument detection according to claim 2 is characterized in that: The outer wall of the filter cartridge (17) is threadedly connected to the inner wall of the sleeve (12), and one end of the transverse tube (14) is provided with a first adapter tube threadedly connected to the sleeve (12), the bottom of the filter cartridge (17) is provided with a toggle block (18) located in the middle part of the filter cartridge (17), and corresponding indicator arrows are provided on the outer wall of the first adapter tube and the outer wall of the sleeve (12).

4. The waste liquid recovery device after biological instrument detection according to claim 3 is characterized in that: The dosing tube (34) is provided with a second adapter sleeve (35), and the second adapter sleeve (35) is threadedly connected to the outer end of the stirring tube (33). The dosing tube (34) is provided with a positioning block (36) and a baffle (26). The positioning block (36) is provided with a plurality of positioning tubes (43), and a spring is provided inside the positioning tube (43). The peripheral side of the baffle (26) is provided with a plurality of support rods (27) which are inserted into the positioning tube (43) and connected to one end of the spring.

5. The device for recovering waste liquid after biological instrument detection according to claim 4, characterized in that: A fixing ring (40) is provided inside the medicine outlet hole (39), and the fixing ring (40) is threadedly connected to the medicine adding pipe (34) inside the medicine outlet hole (39), and a plurality of elastic baffles (41) with fan-shaped structures are provided inside the fixing ring (40).

6. The device for recovering waste liquid after biological instrument detection according to claim 5, characterized in that: A sealing ring is provided on one side of the first positioning ring (13) and the second positioning ring (15).

7. The device for recovering waste liquid after biological instrument detection according to claim 6, characterized in that: An annular groove is provided on one side of the first positioning ring (13) and the second positioning ring (15), and the sealing ring is bonded inside the annular groove.

8. The device for recovering waste liquid after biological instrument detection according to claim 7, characterized in that: The first motor (9) and the second motor (29) are both servo motors, and the first valve (25) and the second valve (38) are both solenoid valves.

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