A wastewater isolation and discharge system for clean environments

Abstract

The application discloses a wastewater isolation and discharge system for a clean environment, which comprises a shell, a water inlet mechanism, a discharge cylinder, a locking mechanism and a disinfection mechanism. The beneficial effect of the application is that two discharge cylinders are arranged, the two discharge cylinders are connected through a rigid rope, and the locking mechanism is arranged. In the initial state, the locking mechanism locks the rigid rope, and the two discharge cylinders are located at high and low points respectively. The discharge cylinder at the high point is used for receiving wastewater, and the discharge cylinder at the low point is used for discharging wastewater. When the rigid rope is unlocked, the two discharge cylinders are transposed. The work of water storage and drainage is completed alternately through the two discharge cylinders. The internal space of the shell is connected with the sewer outside through a drain pipe, and the clean space is connected with the cover cylinder. In the process of discharging water, the clean space and the sewer are always isolated from each other by the discharge cylinder, so that the pollution of the clean space caused by the pollution gas generated by the fermentation of the sewer is avoided. Moreover, the disinfection mechanism can disinfect and treat the discharge cylinder, and the cleanliness of the clean environment is further ensured.

Description

Technical Field

[0001] This invention relates to the field of wastewater discharge technology, and more specifically to a wastewater isolation and discharge system for clean environments. Background Technology

[0002] Cleanrooms, barrier environments for animals, and clean laboratories have high requirements for environmental cleanliness. These clean environments inevitably involve wastewater discharge. In current technology, wastewater is generally discharged directly into the external sewer system through pipes.

[0003] This method of directly discharging wastewater has the following drawbacks: First, the sewers are directly connected to the clean environment through drainage pipes. During the wastewater discharge process, the drainage pipes often dry out. At this time, the sewage in the sewers ferments in the wastewater, and the polluting gases produced by the fermentation in the sewers will evaporate into the clean area through the drainage pipes, causing environmental pollution. Second, the drainage pipes will become polluted during long-term use, and the polluting gases from the drainage pipes themselves will also enter the clean area, causing environmental pollution. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a wastewater isolation and discharge system for clean environments, which is achieved through the following technical solutions.

[0005] A wastewater isolation and discharge system for clean environments includes a housing, a water inlet mechanism, a discharge cylinder, a locking mechanism, and a disinfection mechanism;

[0006] A drain pipe is fixedly connected to the bottom right side of the shell, and the head of the drain pipe is connected to the external sewer. Covers are symmetrically fixed to the lower surface of the top plate of the shell, and an installation cylinder is fixedly connected to the bottom of the cover.

[0007] The water inlet mechanism is used to convey wastewater into the shroud;

[0008] The discharge cylinder is slidably connected in the installation cylinder. The upper and lower parts of the side plate of the discharge cylinder are evenly provided with water inlet and water outlet on the circumference. A counterweight is fixedly connected to the top of the inner cavity of one of the discharge cylinders. A fixed pulley is rotatably connected in the cover cylinder. A rope cylinder is fixedly connected to the side of the cover cylinder that is close to each other. A rigid rope is movably inserted in the rope cylinder. The rigid rope is guided by the fixed pulley, and both ends of the rigid rope are fixedly connected to the discharge cylinder.

[0009] The locking mechanism is located between the rope drums and is used to intermittently lock the rigid rope. When the rigid rope is locked, the two discharge drums are located at a high point and a low point, respectively. The discharge drum at the high point receives wastewater through the inlet, and the discharge drum at the low point discharges wastewater through the outlet and is disinfected by the disinfection mechanism. When the rigid rope is unlocked, the discharge drum at the high point becomes heavier due to receiving wastewater, and thus descends to the low point under the action of gravity. The discharge drum at the low point rises to the high point, the two discharge drums switch positions, and the rigid rope is locked again.

[0010] Preferably, the locking mechanism includes a support plate, a locking plate, a pressure plate, and a servo motor; the upper surface of the support plate has a groove, the head of the rope drum is fixed in the groove, the locking plate is located above the support plate, a rubber lock seat is fixed to the lower surface of the locking plate, a groove is opened at the bottom of the lock seat, a slide rod is fixed to the lock seat, the slide rod is slidably connected to the top plate of the housing, a spring is sleeved on the slide rod, the two ends of the spring are fixedly connected to the housing and the locking plate respectively, the pressure plate is fixed to the top of the slide rod, a drive box is fixed to the housing, a first rotating shaft is rotatably connected inside the drive box, an elliptical cam is fixed to the first rotating shaft, the cam abuts against the pressure plate, the servo motor is fixed to the right side of the drive box, and the output shaft of the servo motor is connected to the first rotating shaft through a coupling.

[0011] Preferably, a PLC controller and a control switch are fixedly connected to the front side of the housing. The PLC controller is model STC15W201S. This model of PLC controller has a built-in timer. The power interface of the PLC controller is electrically connected to an external power supply through the control switch. The output control terminal of the PLC controller is electrically connected to a servo motor through the timer. The PLC controller controls the servo motor to rotate intermittently 180°.

[0012] Preferably, the water inlet mechanism includes a valve seat, a valve chamber, and a funnel; a second rotating shaft is symmetrically rotatably connected to the top plate of the drive box, a driven bevel gear is fixedly connected to the bottom of the second rotating shaft, and a driving bevel gear meshing with the driven bevel gear is fixedly connected to the first rotating shaft, the number of teeth of the driving bevel gear being half that of the driven bevel gear; the valve seat is fixedly connected to the top of the second rotating shaft, and a flow channel is opened inside the valve seat; the valve chamber is fixedly connected to the drive box, and the valve seat is rotatably connected to the valve chamber in a sealed manner; the two sides of the valve chambers that are far apart from each other are connected to the inner cavity of the cover cylinder through a water inlet pipe; a support rod is fixedly connected to the valve chamber; the funnel is fixedly connected to the support rod; a drain pipe is fixedly connected to the bottom of the funnel; the drain pipe is connected to two branch pipes through a first tee, and the two branch pipes are respectively connected to the valve chambers on the left and right sides.

[0013] Preferably, the disinfection mechanism includes a first disinfection pipe, a water pump, and a liquid cylinder; an annular cavity is formed inside the mounting cylinder, and a first cylindrical cavity and a receiving cavity are evenly formed on the upper and lower sides of the annular cavity, respectively. A second cylindrical cavity is formed at the bottom of the receiving cavity. The first disinfection pipe is U-shaped, and one of its vertical sections is fixedly connected to the bottom plate of the discharge cylinder, with a first nozzle fixedly connected to this vertical section; the other vertical section of the first disinfection pipe is slidably and sealed in the second cylindrical cavity, and a sealing seat is fixedly connected to the top of this vertical section. The diameter of the sealing seat is the same as the diameter of the first cylindrical cavity. A water tank is fixed to the front side of the housing, and the water tank contains pure water. A water pump is fixed to the water tank and is electrically connected to the output control terminal of the PLC controller. The inlet of the water pump is connected to the lower part of the inner cavity of the water tank through a water pumping pipe. A water delivery pipe is fixed to the outlet of the water pump. The head of the water delivery pipe is connected to two delivery pipes through a second tee. The head of the delivery pipe is connected to the annular cavity. The medicine cylinder is fixed to the front side of the housing, and the bottom of the medicine cylinder is connected to the water delivery pipe through a medicine pipe.

[0014] Preferably, a flow valve is fixedly connected to the medicine tube.

[0015] Preferably, a second disinfection tube is fixedly connected inside the mounting cylinder at a position corresponding to the first cylindrical cavity, and a second nozzle is fixedly connected above the second disinfection tube.

[0016] Preferably, a temporary storage cylinder is fixedly connected to the outside of the mounting cylinder, a valve cylinder is fixedly connected to the bottom of the temporary storage cylinder, a receiving port is evenly opened around the circumference of the mounting cylinder corresponding to the upper part of the temporary storage cylinder, the top of the discharge cylinder is conical, a hole is opened in the mounting cylinder corresponding to the receiving cavity, a third disinfection tube is fixedly connected to the hole, the other end of the third disinfection tube is fixedly connected to the top of the temporary storage cylinder, a third nozzle is fixedly connected to the third disinfection tube, and a valve ball is fixedly connected to the bottom of the discharge cylinder through a hanging rod.

[0017] The beneficial effects of this invention are that it provides two discharge cylinders connected by a rigid rope and equipped with a locking mechanism. In the initial state, the locking mechanism locks the rigid rope, and the two discharge cylinders are located at a high point and a low point, respectively. The discharge cylinder at the high point is used to receive wastewater, while the discharge cylinder at the low point discharges wastewater and disinfects it through a disinfection mechanism. When the rigid rope is unlocked, the two discharge cylinders switch positions, and the two discharge cylinders alternately complete the work of water storage and drainage. The internal space of the shell is connected to the external sewer through a drain pipe, while the clean space is connected to the cover. During the drainage process, the clean space and the sewer are always isolated from each other by the discharge cylinders, avoiding the pollution of the clean space caused by polluting gases generated by fermentation in the sewer. Furthermore, the disinfection mechanism can disinfect the discharge cylinders, further ensuring the cleanliness of the clean environment. Attached Figure Description

[0018] To more clearly illustrate the technical solution of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 : An isometric view of a wastewater isolation and discharge system for clean environments as described in this invention;

[0020] Figure 2 : Figure 1 A magnified view of a portion at point A shown;

[0021] Figure 3 : A cross-sectional view of a wastewater isolation and discharge system for clean environments as described in this invention;

[0022] Figure 4 : Figure 3 A magnified view of a portion at point B shown;

[0023] Figure 5 : A three-dimensional schematic diagram of the pallet described in this invention;

[0024] Figure 6 : A three-dimensional schematic diagram of the locking plate and the pressure plate described in this invention;

[0025] Figure 7 : Schematic diagram of the internal structure of the drive box and valve chamber described in this invention;

[0026] Figure 8 : Figure 2 A magnified view of a portion at point C shown;

[0027] Figure 9 : Figure 2 A magnified view of a portion at point D shown;

[0028] Figure 10 Half-sectional view of the cover, mounting cylinder and temporary storage cylinder described in this invention;

[0029] Figure 11 : A half-sectional view of the discharge cylinder described in this invention;

[0030] Figure 12 : A schematic diagram of the circuit connection of the PLC controller described in this invention.

[0031] The attached figures are labeled as follows:

[0032] 1-Shell, 11-Drain pipe, 12-Cover, 13-Mounting cylinder.

[0033] 21-Valve seat, 22-Valve chamber, 23-Function funnel, 24-Second rotating shaft, 25-Driven bevel gear, 26-Driven bevel gear, 27-Flow channel, 28-Inlet pipe, 29-Support rod, 210-Drain pipe, 211-First tee, 212-Diverter pipe.

[0034] 3-Discharge cylinder, 31-Inlet, 32-Outlet, 33-Counterweight, 34-Fixed pulley, 35-Rope drum, 36-Rigid rope.

[0035] 41-Pattern, 42-Locking plate, 43-Pressure plate, 44-Servo motor, 45-Slot, 46-Rubber lock seat, 47-Slot opening, 48-Slide rod, 49-Spring, 410-Drive box, 411-First rotating shaft, 412-Cam, 413-PLC controller, 414-Control switch, 415-Timer, 416-External power supply.

[0036] 51-First disinfection pipe, 52-Water pump, 53-Medicine liquid cylinder, 54-Annular cavity, 55-First cylindrical cavity, 56-Receiving cavity, 57-Second cylindrical cavity, 58-First nozzle, 59-Sealing seat, 510-Water tank, 511-Water suction pipe, 512-Water delivery pipe, 513-Second tee, 514-Transfer pipe, 515-Medicine pipe, 516-Flow valve, 517-Second disinfection pipe, 518-Second nozzle, 519-Temporary storage cylinder, 520-Valve cylinder, 521-Receiver port, 522-Orifice, 523-Third disinfection pipe, 524-Third nozzle, 525-Hanging rod, 526-Valve ball. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] like Figure 1-12 As shown, the present invention has the following three specific embodiments.

[0039] Example 1

[0040] A wastewater isolation and discharge system for clean environments includes a housing 1, a water inlet mechanism, a discharge cylinder 3, a locking mechanism, and a disinfection mechanism;

[0041] A drain pipe 11 is fixedly connected to the bottom right side of the shell 1. The head of the drain pipe 11 is connected to the external sewer. Covers 12 are symmetrically fixed to the lower surface of the top plate of the shell 1. An installation cylinder 13 is fixedly connected to the bottom of the cover 12.

[0042] The water inlet mechanism is used to transport wastewater into the casing 12;

[0043] The discharge cylinder 3 is slidably connected in the mounting cylinder 13. The upper and lower parts of the side plate of the discharge cylinder 3 are evenly provided with water inlet 31 and water outlet 32. A counterweight block 33 is fixedly connected to the top of the inner cavity of one of the discharge cylinders 3. A fixed pulley 34 is rotatably connected in the cover cylinder 12. A rope cylinder 35 is fixedly connected to the side of the cover cylinder 12 that is close to each other. A rigid rope 36 is movably inserted in the rope cylinder 35. The rigid rope 36 is guided by the fixed pulley 34, and both ends of the rigid rope 36 are fixedly connected to the discharge cylinder 3.

[0044] The locking mechanism is located between the rope drums 35. The locking mechanism is used to intermittently lock the rigid rope 36. When the rigid rope 36 is locked, the two discharge drums 3 are located at the high point and the low point respectively. The discharge drum 3 at the high point receives wastewater through the inlet 31, and the discharge drum 3 at the low point discharges wastewater through the outlet 32 ​​and is disinfected by the disinfection mechanism. When the rigid rope 36 is unlocked, the discharge drum 3 at the high point becomes heavier due to receiving wastewater, and thus falls to the low point under the action of gravity. The discharge drum 3 at the low point rises to the high point, the two discharge drums 3 switch positions, and the rigid rope 36 is locked again.

[0045] In this embodiment, as Figure 3 As shown, in the initial state, the left and right discharge cylinders 3 are located at the high point and the low point, respectively. The rigid rope 36 is locked by the locking mechanism, thereby locking the position of the two discharge cylinders 3.

[0046] For the discharge cylinder 3 at the higher position on the left, the bottom of the cover cylinder 12 is arc-shaped, and the bottom of the water inlet 31 is flush with the bottom of the inner cavity of the cover cylinder 12. Wastewater is transported into the cover cylinder 12 through the water inlet mechanism. The wastewater enters the discharge cylinder 3 through the water inlet 31. The discharge cylinder 3 on the left side stores water, and the water outlet 32 ​​is sealed by the installation cylinder 13. When storing water, the discharge cylinder 3 isolates the space of the shell 1 from the space of the cover cylinder 12, thereby isolating the sewer environment from the clean space.

[0047] For the discharge cylinder 3 at the lower right position, the outlet 32 ​​is located below the installation cylinder 13 and the seal is removed. The wastewater in the discharge cylinder 3 is discharged through the outlet 32. During the drainage process, the space of the shell 1 and the clean space are isolated from each other, and the discharge cylinder 3 at the lower point can also be disinfected by the disinfection mechanism.

[0048] When the rigid rope 36 is unlocked, the discharge cylinder 3 at the higher point becomes heavier due to receiving wastewater, and thus descends to the lower point under the action of gravity. The discharge cylinder 3 at the lower point rises to the higher point. The two discharge cylinders 3 switch positions, and the rigid rope 36 is locked again. The work of water storage and drainage is completed alternately by the two discharge cylinders 3.

[0049] Example 2

[0050] The locking mechanism includes a support plate 41, a locking plate 42, a pressure plate 43, and a servo motor 44. A groove 45 is formed on the upper surface of the support plate 41, and the head of the rope drum 35 is fixed in the groove 45. The locking plate 42 is located above the support plate 41, and a rubber lock seat 46 is fixedly connected to the lower surface of the locking plate 42. A groove 47 is formed at the bottom of the lock seat, and a sliding rod 48 is fixedly connected to the lock seat. The sliding rod 48 is slidably connected to the top plate of the housing 1, and a spring 49 is sleeved on the sliding rod 48. The two ends of 9 are fixedly connected to the housing 1 and the locking plate 42 respectively. The pressure plate 43 is fixedly connected to the top of the slide rod 48. The housing 1 is fixedly connected to the drive box 410. The first rotating shaft 411 is rotatably connected inside the drive box 410. An elliptical cam 412 is fixedly connected to the first rotating shaft 411. The cam 412 abuts against the pressure plate 43. The servo motor 44 is fixedly connected to the right side of the drive box 410. The output shaft of the servo motor 44 is connected to the first rotating shaft 411 through a coupling.

[0051] In this embodiment, the technical features of the locking mechanism are disclosed, which are used to achieve intermittent locking of the rigid rope 36, such as... Figure 4-7 As shown, in the initial state, the long shaft end of the cam 412 is in contact with the pressure plate 43, and the spring 49 is in the extended state. The rubber lock seat 46 enters the groove 45 and is pressed by the rigid rope 36, thereby pressing the rigid rope 36 and preventing the rigid rope 36 from moving.

[0052] The servo motor 44 rotates 180° each time. When the servo motor 44 is working, it drives the first rotating shaft 411 and the cam 412 to rotate. During this process, the pressure plate 43 abuts against the cam 412 under the action of the spring 49. When the cam 412 rotates 180°, the locking plate 42 and the rubber locking seat 46 rise first, and the rigid rope 36 is unlocked. Then the locking plate 42 and the rubber locking seat 46 descend, and the rigid rope 36 is locked again.

[0053] When the rigid rope 36 is unlocked, the gravity increases due to the water stored in the left discharge cylinder 3, and the wastewater in the right discharge cylinder 3 is emptied. As a result, the left discharge cylinder 3 descends to its lowest point and the right discharge cylinder 3 rises to its highest point. The two discharge cylinders 3 switch positions, and the left discharge cylinder 3 begins to discharge wastewater, while the right discharge cylinder 3 receives wastewater.

[0054] This cycle allows the two discharge cylinders 3 to alternately perform the tasks of storing and draining water.

[0055] As a further embodiment of this example, a PLC controller 413 and a control switch 414 are fixedly connected to the front side of the housing 1. The PLC controller 413 is model STC15W201S. This model of PLC controller 413 has a built-in timer 415. The power interface of the PLC controller 413 is electrically connected to an external power supply 416 through the control switch 414. The output control terminal of the PLC controller 413 is electrically connected to the servo motor 44 through the timer 415. The PLC controller 413 controls the servo motor 44 to rotate intermittently 180°.

[0056] In this embodiment, to achieve intermittent 180° rotation of the servo motor 44, a PLC controller 413 is disclosed, such as... Figure 12 As shown, by setting the timer 415 built into the PLC controller 413, the servo motor 44 is made to rotate intermittently by 180°.

[0057] As a further embodiment of this invention, the water inlet mechanism includes a valve seat 21, a valve chamber 22, and a funnel 23; a second rotating shaft 24 is symmetrically rotatably connected to the top plate of the drive box 410, a driven bevel gear 25 is fixedly connected to the bottom of the second rotating shaft 24, and a driving bevel gear 26 that meshes with the driven bevel gear 25 is fixedly connected to the first rotating shaft 411, the number of teeth of the driving bevel gear 26 being half that of the driven bevel gear 25; the valve seat 21 is fixedly connected to the top of the second rotating shaft 24, and a flow channel is opened inside the valve seat 21. Channel 27, valve chamber 22 is fixedly connected to drive box 410, valve seat 21 is rotatably connected to valve chamber 22, the side of valve chamber 22 that is far apart from each other is connected to the inner cavity of cover cylinder 12 through water inlet pipe 28, support rod 29 is fixedly connected to valve chamber 22, funnel 23 is fixedly connected to support rod 29, bottom of funnel 23 is fixedly connected to drain pipe 210, drain pipe 210 is connected to two diverter pipes 212 through first tee 211, and the two diverter pipes 212 are respectively connected to valve chamber 22 on the left and right sides.

[0058] In this embodiment, when the discharge cylinder 3 is at a high point, wastewater should enter the corresponding shroud 12, while the input of wastewater should be stopped in the other shroud 12. Figure 3-4 ,as well as Figure 7 As shown, when the first rotating shaft 411 rotates, it also drives the valve seat 21 to rotate through the cooperation of the driving bevel gear 26 and the driven bevel gear 25. Since the number of teeth of the driving bevel gear 26 is half that of the driven bevel gear 25, and the first rotating shaft 411 rotates 180° each time, that is, the valve seat 21 rotates 90° each time. Figure 4For example, in the initial state, the two ends of the flow channel 27 are aligned with the inlet pipe 28 and the diversion pipe 212 respectively. The wastewater funnel 23 collects the wastewater and enters the left cover 12 through the drain pipe 210, the diversion pipe 212, the flow channel 27 and the inlet pipe 28. When the discharge cylinder 3 is switched, the valve seat 21 rotates 90°. The left inlet pipe 28 and the diversion pipe 212 are isolated by the valve seat 21, and the right inlet pipe 28 and the diversion pipe 212 are connected through the flow channel 27.

[0059] Example 3

[0060] The disinfection mechanism includes a first disinfection pipe 51, a water pump 52, and a liquid cylinder 53. An annular cavity 54 is formed inside the mounting cylinder 13. A first cylindrical cavity 55 and a receiving cavity 56 are evenly formed on the upper and lower sides of the annular cavity 54, respectively. A second cylindrical cavity 57 is formed at the bottom of the receiving cavity 56. The first disinfection pipe 51 is U-shaped. One vertical section of the first disinfection pipe 51 is fixedly connected to the bottom plate of the discharge cylinder 3, and a first nozzle 58 is fixedly connected to this vertical section. The other vertical section of the first disinfection pipe 51 is slidably and sealed within the second cylindrical cavity 57, and a sealing seat 59 is fixedly connected to the top of this vertical section. The diameter of the sealing seat 59 is the same as that of the first cylindrical cavity 55. With the same diameter, a water tank 510 is fixedly connected to the front side of the housing 1. The water tank 510 contains pure water. A water pump 52 is fixedly connected to the water tank 510. The water pump 52 is electrically connected to the output control terminal of the PLC controller 413. The inlet of the water pump 52 is connected to the lower part of the inner cavity of the water tank 510 through a water pumping pipe 511. The outlet of the water pump 52 is fixedly connected to a water delivery pipe 512. The head of the water delivery pipe 512 is connected to two delivery pipes 514 through a second tee 513. The head of the delivery pipes 514 is connected to the annular cavity 54. A medicine cylinder 53 is fixedly connected to the front side of the housing 1. The bottom of the medicine cylinder 53 is connected to the water delivery pipe 512 through a medicine pipe 515.

[0061] Furthermore, a flow valve 516 is fixedly connected to the medicine tube 515.

[0062] Furthermore, a second disinfection tube 517 is fixedly connected inside the mounting cylinder 13 at the position corresponding to the first cylindrical cavity 55, and a second nozzle 518 is fixedly connected above the second disinfection tube 517.

[0063] In this embodiment, as Figure 12 As shown, when control switch 414 is closed, water pump 52 operates, as... Figure 1 As shown, water pump 52 draws pure water from water tank 510 through water pipe 511 and delivers it through water pipe 512. Disinfectant solution is contained in liquid container 53. The solution enters water pipe 512 through liquid pipe 515 and mixes with pure water to form disinfectant solution. The addition rate of the solution can be controlled by flow valve 516. Figure 10 As shown, the disinfectant enters the annular cavity 54 through the delivery pipe 514.

[0064] like Figure 8 As shown, when the discharge tube 3 is at its highest point, the sealing seat 59 enters below the top of the cylindrical cavity, thereby sealing the second disinfection tube 517 and the first disinfection tube 51. Figure 9 As shown, when the discharge cylinder 3 is at its lowest point, the sealing seat 59 enters the annular cavity 54. The disinfectant is sprayed out from the first disinfection pipe 51 and the first nozzle 58 to disinfect the discharge cylinder 3, and sprayed out from the second disinfection pipe 517 to disinfect the inside of the cover cylinder 12.

[0065] As a further embodiment of this example, a temporary storage cylinder 519 is fixedly connected to the outside of the mounting cylinder 13, and a valve cylinder 520 is fixedly connected to the bottom of the temporary storage cylinder 519. The mounting cylinder 13 has a receiving port 521 evenly distributed around its circumference at the position corresponding to the upper part of the temporary storage cylinder 519. The top of the discharge cylinder 3 is conical. A hole 522 is opened in the mounting cylinder 13 at the position corresponding to the receiving cavity 56. A third disinfection tube 523 is fixedly connected in the hole 522. The other end of the third disinfection tube 523 is fixedly connected to the top of the temporary storage cylinder 519. A third nozzle 524 is fixedly connected to the third disinfection tube 523. A valve ball 526 is fixedly connected to the bottom of the discharge cylinder 3 through a hanging rod 525.

[0066] In this embodiment, when disinfecting the cover 12, in order to drain the disinfectant solution after use from the cover 12, such as... Figure 9 As shown, when the discharge cylinder 3 is at its lowest point, the disinfectant solution used in the cover cylinder 12 enters the temporary storage cylinder 519 through the receiving port 521, as... Figure 3 As shown, at this time, the valve ball 526 enters the valve cylinder 520 to seal the bottom of the temporary storage cylinder 519. The wastewater in the discharge cylinder 3 at the lower point enters the temporary storage cylinder 519, and the disinfectant generated during the disinfection of the discharge cylinder 3 and the cover cylinder 12 enters the temporary storage cylinder 519. Due to the presence of the valve ball 526, the space of the shell 1 and the space of the cover cylinder 12 are isolated from each other during drainage.

[0067] like Figure 8 As shown, when the discharge cylinder 3 is at its highest point, the valve ball 526 rises, causing the valve cylinder 520 to open. The waste liquid in the temporary storage cylinder 519 enters the housing 1, and at this time, the sealing seat 59 enters the top of the first cylindrical cavity 55, the hole 522 opens, and the disinfectant in the annular cavity 54 is sprayed out through the third disinfection pipe 523 and the third nozzle 524 to disinfect the temporary storage cylinder 519.

[0068] The working principle of this invention is as follows:

[0069] In the initial state, the discharge cylinders 3 on the left and right sides are located at the high point and the low point respectively, the long shaft end of the cam 412 is in contact with the pressure plate 43, and the rigid rope 36 is fixed by the rubber lock seat 46; the flow channel 27 on the left side is in a horizontal state, and the water inlet pipe 28 and the water outlet pipe 210 on the left side are connected through the flow channel 27; the flow channel 27 on the right side is in a vertical state, and the water inlet pipe 28 and the water outlet pipe 210 on the right side are isolated by the valve seat 21.

[0070] When wastewater is discharged centrally, the control switch 414 is closed. The wastewater first enters the funnel 23 on the left through the inlet pipe 28 and the drain pipe 210 on the left. The discharge cylinder 3 on the left receives the wastewater through the inlet 31. The discharge cylinder 3 on the right discharges the wastewater into the temporary storage cylinder 519 through the outlet 32. Meanwhile, the first disinfection pipe 51 and the second disinfection pipe 517 on the right spray disinfectant to disinfect the discharge cylinder 3 and the cover cylinder 12. The used disinfectant also enters the temporary storage cylinder 519. The third disinfection pipe 523 on the left sprays disinfectant to disinfect the temporary storage cylinder 519. The waste liquid in the temporary storage cylinder 519 on the left enters the housing 1 through the valve cylinder 520.

[0071] When the servo motor 44 rotates 180°, the rigid rope 36 will unlock for a period of time. During this process, the left and right discharge cylinders 3 switch positions, and the left and right valve seats 21 rotate 90°. The flow channel 27 on the left becomes longitudinal, and the flow channel 27 on the right becomes transverse. After the rigid rope 36 relocks, the left discharge cylinder 3 discharges wastewater, and the left discharge cylinder 3 and the cover cylinder 12 are disinfected. The left temporary storage cylinder 519 receives the waste liquid. Meanwhile, the right discharge cylinder 3 receives wastewater, the right temporary storage cylinder 519 is disinfected, and the right temporary storage cylinder 519 discharges waste liquid through the valve cylinder 520. This cycle continues, with the left and right discharge cylinders 3 alternately storing and discharging water, and all discharge cylinders 3, cover cylinder 12, and temporary storage cylinder 519 can be disinfected. During the wastewater discharge process, the sewer environment and the clean space environment are isolated from each other.

[0072] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A wastewater isolation and discharge system for clean environments, comprising a shell, a water inlet mechanism, a discharge cylinder, a locking mechanism, and a disinfection mechanism; characterized in that, A drain pipe is fixedly connected to the bottom right side of the housing, and the head of the drain pipe is connected to the external sewer. Covers are symmetrically fixed to the lower surface of the top plate of the housing, and an installation cylinder is fixedly connected to the bottom of the cover. A drive box is fixedly connected to the housing, and a first rotating shaft is rotatably connected inside the drive box. The water inlet mechanism is used to transport wastewater into the hood. The water inlet mechanism includes a valve seat, a valve chamber, and a funnel. A second rotating shaft is symmetrically rotatably connected to the top plate of the drive box. A driven bevel gear is fixedly connected to the bottom of the second rotating shaft. A driving bevel gear that meshes with the driven bevel gear is fixedly connected to the first rotating shaft. The number of teeth of the driving bevel gear is half that of the driven bevel gear. The valve seat is fixedly connected to the top of the second rotating shaft. A flow channel is opened in the valve seat. The valve chamber is fixedly connected to the drive box. The valve seat is rotatably connected to the valve chamber in a sealed manner. The two sides of the valve chambers that are far apart from each other are connected to the inner cavity of the hood through a water inlet pipe. A support rod is fixedly connected to the valve chamber. The funnel is fixedly connected to the support rod. A drain pipe is fixedly connected to the bottom of the funnel. The drain pipe is connected to two branch pipes through a first tee. The two branch pipes are respectively connected to the valve chambers on the left and right sides. The discharge cylinder is slidably connected in the installation cylinder. The upper and lower parts of the side plate of the discharge cylinder are evenly provided with water inlet and water outlet on the circumference. A counterweight is fixedly connected to the top of the inner cavity of one of the discharge cylinders. A fixed pulley is rotatably connected in the cover cylinder. A rope cylinder is fixedly connected to the side of the cover cylinder that is close to each other. A rigid rope is movably inserted in the rope cylinder. The rigid rope is guided by the fixed pulley, and both ends of the rigid rope are fixedly connected to the discharge cylinder. The locking mechanism is located between the rope drums and is used to intermittently lock the rigid rope. When the rigid rope is locked, the two discharge drums are located at a high point and a low point, respectively. The discharge drum at the high point receives wastewater through the inlet, and the discharge drum at the low point discharges wastewater through the outlet and is disinfected by the disinfection mechanism. When the rigid rope is unlocked, the discharge drum at the high point becomes heavier due to receiving wastewater, and thus descends to the low point under the action of gravity. The discharge drum at the low point rises to the high point, the two discharge drums switch positions, and the rigid rope is locked again.

2. The wastewater isolation and discharge system for clean environments according to claim 1, characterized in that, The locking mechanism includes a support plate, a locking plate, a pressure plate, and a servo motor. The upper surface of the support plate has a groove, and the head of the rope drum is fixed in the groove. The locking plate is located above the support plate, and a rubber locking seat is fixed to the lower surface of the locking plate. A slot is formed at the bottom of the locking seat, and a sliding rod is fixed to the locking seat. The sliding rod is slidably connected to the top plate of the housing. A spring is sleeved on the sliding rod, and both ends of the spring are fixedly connected to the housing and the locking plate, respectively. The pressure plate is fixed to the top of the sliding rod. An elliptical cam is fixed to the first rotating shaft, and the cam abuts against the pressure plate. The servo motor is fixed to the right side of the drive box, and the output shaft of the servo motor is connected to the first rotating shaft via a coupling.

3. A wastewater isolation and discharge system for clean environments according to claim 2, characterized in that, A PLC controller and a control switch are fixed to the front side of the housing. The PLC controller is model STC15W201S. This model of PLC controller has a built-in timer. The power interface of the PLC controller is electrically connected to an external power supply through the control switch. The output control terminal of the PLC controller is electrically connected to a servo motor through the timer. The PLC controller controls the servo motor to rotate intermittently 180°.

4. A wastewater isolation and discharge system for clean environments according to claim 3, characterized in that, The disinfection mechanism includes a first disinfection pipe, a water pump, and a liquid cylinder. An annular cavity is formed inside the mounting cylinder. A first cylindrical cavity and a receiving cavity are evenly formed on the upper and lower sides of the annular cavity, respectively. A second cylindrical cavity is formed at the bottom of the receiving cavity. The first disinfection pipe is U-shaped. One vertical section of the first disinfection pipe is fixedly connected to the bottom plate of the discharge cylinder, and a first nozzle is fixedly connected to this vertical section. The other vertical section of the first disinfection pipe is slidably and sealingly connected to the second cylindrical cavity, and a sealing seat is fixedly connected to the top of this vertical section. The diameter of the seat is the same as the diameter of the first cylindrical cavity. A water tank is fixed to the front side of the housing, and the water tank contains pure water. A water pump is fixed to the water tank and is electrically connected to the output control terminal of the PLC controller. The inlet of the water pump is connected to the lower part of the inner cavity of the water tank through a water pumping pipe. A water delivery pipe is fixed to the outlet of the water pump. The head of the water delivery pipe is connected to two delivery pipes through a second tee. The head of the delivery pipe is connected to the annular cavity. The medicine cylinder is fixed to the front side of the housing, and the bottom of the medicine cylinder is connected to the water delivery pipe through a medicine pipe.

5. A wastewater isolation and discharge system for clean environments according to claim 4, characterized in that, A flow valve is fixedly connected to the medicine tube.

6. A wastewater isolation and discharge system for clean environments according to claim 4, characterized in that, A second disinfection tube is fixedly connected inside the mounting cylinder at the position corresponding to the first cylindrical cavity, and a second nozzle is fixedly connected above the second disinfection tube.

7. A wastewater isolation and discharge system for clean environments according to claim 4, characterized in that, A temporary storage cylinder is fixedly connected to the outside of the mounting cylinder. A valve cylinder is fixedly connected to the bottom of the temporary storage cylinder. A receiving port is evenly opened around the circumference of the mounting cylinder at the position corresponding to the upper part of the temporary storage cylinder. The top of the discharge cylinder is conical. A hole is opened inside the mounting cylinder at the position corresponding to the receiving cavity. A third disinfection tube is fixedly connected to the hole. The other end of the third disinfection tube is fixedly connected to the top of the temporary storage cylinder. A third nozzle is fixedly connected to the third disinfection tube. A valve ball is fixedly connected to the bottom of the discharge cylinder through a hanging rod.

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