Easy-to-operate sewage purification device for biotechnology research and development

Abstract

The invention discloses an easy-to-operate sewage purification device for biotechnology research and development, and relates to the technical field of sewage treatment.The easy-to-operate sewage purification device for biotechnology research and development comprises a main body, a medicine storage tank is fixedly installed at the top of the main body, and a water inlet is fixedly formed in the front portion of the main body; a water outlet is fixedly formed in the rear portion of the main body, a driving motor is fixedly installed on the rear portion of the main body, a medicine spreading device is arranged in the main body, a stirring device is arranged in the main body, and a sewage discharging device is arranged in the main body. Sewage flows in to enable the baffle to rotate, the baffle rotates to enable the connecting rod to move, the connecting rod moves to drive the cover plate to move, the medicine inlet is exposed, the purification medicine in the medicine storage tank enters the main body, and the amount of the purification medicine falling into the main body is controlled through the moving distance of the cover plate.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to an easy-to-operate sewage purification device for biotechnology research and development. Background Art

[0002] Sewage purification is the process of purifying sewage so that it meets the water quality requirements for discharge into a water body or reuse.

[0003] The patent with the patent announcement number CN210796011U relates to an easy-to-operate sewage purification device for biotechnology research and development, including a box body, a slide fixedly connected to the top of the box body, and a motor fixedly connected to the back of the slide through a support plate, the output shaft of the motor passes through the slide and extends to the surface of the slide, and the end of the motor output shaft extending to the surface of the slide is fixedly connected to a disc, and the surface of the disc is fixedly connected to a first fixed block. The patent relates to the technical field of sewage purification. In this easy-to-operate sewage purification device for biotechnology research and development, the brush on the stirring rod can remove the residue on the filter plate, making it more fully stirred, convenient and fast, greatly improving the efficiency of sewage purification, saving the time of sewage purification, and reducing the labor intensity of users. The spring connected to the stirring rod plays a buffering role to prevent the stirring blades from hitting the inner wall of the box body during movement, causing damage to the stirring blades; The above patent solves the problem of the stirring blades hitting the inner wall of the box during movement, causing damage to the stirring blades. However, it does not take into account that the amount of sewage purified by the device each time is different. The amount of sewage that needs to be purified determines the amount of purification medicine that needs to be added. If the amount of medicine is too much, it will cause waste. If the amount of medicine is too little, the sewage cannot be completely purified. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides an easy-to-operate sewage purification device for biotechnology research and development, which solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an easy-to-operate sewage purification device for biotechnology research and development, comprising a main body, a medicine storage tank is fixedly installed on the top of the main body, a water inlet is fixedly installed on the front of the main body, a water outlet is fixedly installed on the rear of the main body, a driving motor is fixedly installed on the rear of the main body, a medicine spreading device is arranged inside the main body, a stirring device is arranged inside the main body, and a sewage discharge device is arranged inside the main body; The medicine spreading device includes a baffle, a connecting rod, a cover plate, a gear, a rotating shaft, a short rod and a round rod. The baffle is rotatably installed inside the main body, the cover plate is slidably installed inside the main body, one end of the connecting rod is rotatably installed at the rear of the baffle, the other end of the connecting rod is rotatably installed at the bottom of the cover plate, the gear is rotatably installed inside the main body, one end of the rotating shaft is fixedly installed on the top of the gear, the short rod is fixedly installed on the other end of the rotating shaft, and the round rod is fixedly installed on the top of the short rod. Through this invention, sewage can be cleaned, and by arranging the medicine spreading device, purification medicine can be released only when sewage flows into the main body, thereby avoiding medicine waste.

[0006] According to the above technical solution, the baffle is in contact with the water inlet, and a No. 1 spring is fixedly installed between the baffle and the main body. The amount of sewage entering the main body is controlled by setting the baffle and the No. 1 spring.

[0007] According to the above technical solution, a small rack is fixedly installed on the top of the cover plate, and the small rack is meshed with the gear. The top of the cover plate contacts the bottom of the gear, and the rotation of the gear is controlled by the meshing of the small rack and the gear, so as to break up the agglomerated purification drugs, increase the contact area between the purification drugs and sewage, and improve the purification efficiency.

[0008] According to the above technical scheme, the stirring device includes a screw rod, a moving block, a connecting plate, an L-shaped rod, a transmission gear, a rack, a bevel block, a flap, a fixed rod and a blade, one end of the screw rod is rotatably installed inside the main body, the screw rod rotates and passes through the rear of the main body, the other end of the screw rod is fixedly installed at the output end of the driving motor, the moving block is threadedly connected to the screw rod, the connecting plate is fixedly installed on the top of the moving block, the L-shaped rod is fixedly installed on the top of the connecting plate, the transmission gear is rotatably installed on the bottom of the connecting plate, the rack is fixedly installed inside the main body, the transmission gear is meshed with the rack, one end of the fixed rod is fixedly installed on the bottom of the transmission gear, the blade is fixedly installed on the other end of the fixed rod, the flap is rotatably installed on the bottom of the cover plate, the bevel block is rotatably installed on the bottom of the flap, and a No. 2 spring piece is fixedly installed between the front of the bevel block and the bottom of the flap. The sewage is stirred by arranging the stirring device, so that the sewage and the internal purification drug are mixed more fully, thereby improving the working efficiency.

[0009] According to the above technical solution, the L-shaped rod is in contact with the inclined plane block, and the bottom of the inclined plane block is set as an inclined plane. The flap is rotated by the contact between the L-shaped rod and the inclined plane block. The rotation of the flap can sprinkle the purification drug, increase the contact area between the purification drug and the sewage, and improve work efficiency.

[0010] According to the above technical solution, the fixing rod and the blades are provided in plurality, and the blades are spiral-shaped. The sewage is stirred by the rotation of the blades, so that the dissolution rate of the purification drug is accelerated and the work efficiency is improved.

[0011] According to the above technical scheme, the sewage discharge device includes a connecting rod, a scraper, a slider, a reset spring piece, a long plate, an elastic bent plate and a limit plate. The scraper is slidably installed inside the main body, the connecting rod is fixedly installed through the transmission gear, one end of the connecting rod is fixedly installed on the bottom of the connecting plate, and one end of the connecting rod is rotatably installed on the top of the scraper. A sewage trough is opened inside the main body, a slide groove is opened inside the main body, the slider is slidably installed inside the slide groove, the limit plate is fixedly installed on the bottom of the slider, the reset spring piece is fixedly installed between the limit plate and the main body, the long plate is rotatably installed inside the sewage trough, one side of the elastic bent plate is fixedly installed on the bottom of the long plate, and the other side of the elastic bent plate is fixedly installed inside the sewage trough. The sewage discharge device is provided to discharge internal impurities to prevent impurities from remaining in the main body and causing the purified sewage to be contaminated again.

[0012] According to the above technical solution, the limit plate is in contact with the long plate, and the elastic force of the elastic bent plate is greater than the elastic force of the reset spring. By arranging the limit plate and the long plate, when using the sewage trough to discharge impurities, no sewage will flow out of the sewage outlet to pollute the environment.

[0013] The present invention provides an easy-to-operate sewage purification device for biotechnology research and development, which has the following beneficial effects: (1) In the present invention, sewage flows in through the water inlet, and contacts the baffle plate when flowing in. The inflow of sewage causes the baffle plate to rotate, and the rotation of the baffle plate causes the connecting rod to move. The movement of the connecting rod drives the cover plate to move, exposing the drug inlet, so that the purifying drug inside the drug storage tank enters the main body. The amount of purifying drug falling into the main body is controlled by the distance the cover plate moves. The movement of the cover plate causes the small rack to move, and the movement of the small rack drives the gear to rotate. The rotation of the gear drives the shaft to rotate. The rotation of the shaft drives the short rod to rotate. The rotation of the short rod drives the round rod to rotate. The rotation of the round rod breaks up the purifying drug that may be agglomerated inside the drug storage tank, thereby increasing the mixing speed of the purifying drug and the sewage and the dissolution speed of the purifying drug. The purifying drug falls into the main body, contacts the sewage, and begins to dissolve and purify the sewage.

[0014] (2) In the present invention, the drive motor is started, which drives the screw to rotate. The screw rotation causes the moving block to move. The movement of the moving block drives the connecting plate to move. The movement of the connecting plate drives the transmission gear to move. Because the transmission gear is meshed with the rack, the transmission gear rotates. The rotation of the transmission gear drives the fixed rod to rotate. The rotation of the fixed rod drives the blades to rotate. The rotation of the blades stirs the sewage, so that the sewage and the purification drug are mixed more fully. The more fully the sewage and the purification drug are mixed, the faster the purification drug dissolves, thereby improving the efficiency of sewage purification. When the connecting plate moves, it will drive the L-shaped rod to move, and the L-shaped rod moves and contacts the inclined plane block, causing the inclined plane block to rotate. When the L-shaped rod moves from the front to the rear of the main body, the L-shaped rod moves and contacts the inclined plane block, causing the inclined plane block to rotate. The inclined plane block rotates to straighten the No. 2 spring piece. When the No. 2 spring piece is straightened, the flap is rotated to sprinkle the purification medicine, increasing the contact area between the purification medicine and the sewage. When the flap rotates until the inclined surface of the inclined plane block is parallel to the top of the L-shaped rod, it no longer rotates, and the L-shaped rod continues to move without contacting the inclined plane block. The inclined plane block is reset by the elastic force of the No. 2 spring piece.

[0015] (3) In the present invention, when the connecting plate moves, the movement of the connecting plate drives the movement of the connecting rod, and the movement of the connecting rod drives the movement of the scraper. The movement of the scraper cleans the inside of the main body. When the scraper moves to the top of the sewage trough, impurities fall on the top of the long plate. The scraper contacts the slider. When the scraper contacts the slider, the sewage trough is completely covered to prevent sewage from flowing out of the sewage trough and causing pollution. The scraper continues to move to move the slider. The movement of the slider drives the limit plate to move. The limit plate moves to release the limit on the long plate. The long plate rotates downward due to the gravity exerted by the impurities on the top of the long plate. The gravity exerted by the long plate rotates downward so that the impurities fall into the sewage trough and are discharged. The long plate is affected by the elastic force of the elastic bent plate and rotates upward to reset. When the scraper moves and does not contact the slider, the slider and the limit plate are reset by the elastic force of the reset spring. The limit plate limits the long plate again. When the sewage purification is completed, the purified sewage is pumped out of the main body through the outlet. The device completes the purification work. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the water outlet position structure of the present invention; Figure 3 It is a schematic diagram of the rack position structure of the present invention; Figure 4 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 5 This is a schematic diagram of the position structure of the medicine spreading device of the present invention; Figure 6 This is a schematic diagram of the position structure of the stirring device of the present invention; Figure 7 For the present invention Figure 4Schematic diagram of the structure of part A.

[0017] In the figure: 1. main body; 2. medicine storage tank; 3. water inlet; 4. water outlet; 5. driving motor; 601. baffle; 602. connecting rod; 603. cover plate; 604. gear; 605. rotating shaft; 606. short rod; 607. round rod; 701. screw rod; 702. moving block; 703. connecting plate; 704. L-shaped rod; 705. transmission gear; 706. rack; 707. inclined block; 708. flap; 709. fixing rod; 710. blade; 801. connecting rod; 802. scraper; 803. slider; 804. reset spring; 805. long plate; 806. elastic bending plate; 807. limit plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 7 , one embodiment of the present invention is: an easy-to-operate sewage purification device for biotechnology research and development, comprising a main body 1, a medicine storage tank 2 is fixedly installed on the top of the main body 1, a water inlet 3 is fixedly installed on the front of the main body 1, a water outlet 4 is fixedly installed on the rear of the main body 1, a driving motor 5 is fixedly installed on the rear of the main body 1, a medicine spreading device is arranged inside the main body 1, and a stirring device is arranged inside the main body 1; The medicine spreading device includes a baffle 601, a connecting rod 602, a cover plate 603, a gear 604, a rotating shaft 605, a short rod 606 and a round rod 607. The baffle 601 is rotatably installed inside the main body 1, the cover plate 603 is slidably installed inside the main body 1, one end of the connecting rod 602 is rotatably installed at the rear of the baffle 601, the other end of the connecting rod 602 is rotatably installed at the bottom of the cover plate 603, the gear 604 is rotatably installed inside the main body 1, one end of the rotating shaft 605 is fixedly installed on the top of the gear 604, the short rod 606 is fixedly installed on the other end of the rotating shaft 605, and the round rod 607 is fixedly installed on the top of the short rod 606. The invention can be used to clean sewage. By setting the medicine spreading device, purification medicine can be placed only when sewage flows into the main body 1, thereby avoiding medicine waste.

[0020] The baffle 601 contacts the water inlet 3 , and a first spring piece is fixedly installed between the baffle 601 and the main body 1 . The amount of sewage entering the main body 1 is controlled by setting the baffle 601 and the first spring piece to control the amount of purification medicine.

[0021] A small rack is fixedly installed on the top of the cover plate 603, and the small rack meshes with the gear 604. The top of the cover plate 603 contacts the bottom of the gear 604. The meshing of the small rack and the gear 604 controls the rotation of the gear 604, thereby breaking up the agglomerated purification drugs, increasing the contact area between the purification drugs and sewage, and improving the purification efficiency.

[0022] The stirring device includes a screw 701, a moving block 702, a connecting plate 703, an L-shaped rod 704, a transmission gear 705, a rack 706, a ramp block 707, a flap 708, a fixed rod 709 and a blade 710. One end of the screw 701 is rotatably mounted inside the main body 1, the screw 701 rotates and passes through the rear of the main body 1, and the other end of the screw 701 is fixedly mounted on the output end of the drive motor 5. The moving block 702 is threadedly connected to the screw 701, the connecting plate 703 is fixedly mounted on the top of the moving block 702, the L-shaped rod 704 is fixedly mounted on the top of the connecting plate 703, and the transmission gear 705 is rotatably mounted inside the main body 1. The main body 1 is provided with a plurality of movable parts, the rack 706 is fixedly mounted on the bottom of the connecting plate 703, the transmission gear 705 is meshed with the rack 706, one end of the fixing rod 709 is fixedly mounted on the bottom of the transmission gear 705, the blade 710 is fixedly mounted on the other end of the fixing rod 709, the flap 708 is rotatably mounted on the bottom of the cover plate 603, the inclined block 707 is rotatably mounted on the bottom of the flap 708, and a second spring is fixedly mounted between the front of the inclined block 707 and the bottom of the flap 708. The sewage is stirred by setting a stirring device so that the sewage and the internal purification medicine are mixed more fully, thereby improving the working efficiency.

[0023] The L-shaped rod 704 contacts the inclined block 707, and the bottom of the inclined block 707 is set as an inclined surface. The flap 708 is rotated by the contact between the L-shaped rod 704 and the inclined block 707. The rotation of the flap 708 can sprinkle the purification drug, increase the contact area between the purification drug and the sewage, and improve work efficiency.

[0024] A plurality of fixed rods 709 and blades 710 are provided. The blades 710 are spiral-shaped. The rotation of the blades 710 is used to stir the sewage, thereby accelerating the dissolution rate of the purification drug and improving work efficiency.

[0025] When this embodiment is working: when the device is working, sewage flows in through the water inlet 3, and the sewage contacts the baffle 601 when flowing in. The inflow of sewage causes the baffle 601 to rotate, and the rotation of the baffle 601 causes the connecting rod 602 to move. The movement of the connecting rod 602 drives the cover plate 603 to move, and the movement of the cover plate 603 causes the small rack to move. The movement of the small rack drives the gear 604 to rotate, and the rotation of the gear 604 drives the rotating shaft 605 to rotate. The rotation of the rotating shaft 605 drives the short rod 606 to rotate, and the rotation of the short rod 606 drives the round rod 607 to rotate. The rotation of the round rod 607 breaks up the purification medicine that may be agglomerated inside the medicine storage tank 2, and the purification medicine falls into the inside of the main body 1. The purification medicine contacts the sewage and begins to dissolve and purify the sewage.

[0026] When the device is working, the driving motor 5 is started, and the driving motor 5 starts to drive the screw rod 701 to rotate. The screw rod 701 rotates to make the moving block 702 move. The movement of the moving block 702 drives the connecting plate 703 to move. The movement of the connecting plate 703 drives the transmission gear 705 to move. Because the transmission gear 705 is meshed with the rack 706, the transmission gear 705 rotates. The rotation of the transmission gear 705 drives the fixed rod 709 to rotate. The rotation of the fixed rod 709 drives the blade 710 to rotate. The blade 710 rotates to stir the sewage, so that the sewage and the purification drug are mixed more fully. At the same time, when the connecting plate 703 moves, it will drive the L-shaped Rod 704 moves, and the L-shaped rod 704 moves and contacts with the inclined plane block 707, so that the inclined plane block 707 rotates. When the L-shaped rod 704 moves from the front to the rear of the main body 1, the L-shaped rod 704 moves and contacts with the inclined plane block 707, so that the inclined plane block 707 rotates. The inclined plane block 707 rotates to straighten the No. 2 spring piece. When the No. 2 spring piece is straightened, the flap 708 rotates to spray the purification medicine. When the flap 708 rotates to the inclined surface of the inclined plane block 707 is parallel to the top of the L-shaped rod 704, it stops rotating. The L-shaped rod 704 continues to move without contacting the inclined plane block 707, and the inclined plane block 707 is reset by the elastic force of the No. 2 spring piece.

[0027] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a sewage discharge device is arranged inside the main body 1, and the sewage discharge device includes a connecting rod 801, a scraper 802, a slider 803, a reset spring 804, a long plate 805, an elastic bent plate 806 and a limit plate 807. The scraper 802 is slidably installed inside the main body 1, the connecting rod 801 is fixedly penetrated through the transmission gear 705, one end of the connecting rod 801 is fixedly installed at the bottom of the connecting plate 703, and one end of the connecting rod 801 is rotatably installed on the top of the scraper 802. The main body 1 has a sewage discharge device arranged inside. A sewage trough is provided with a slide groove inside the main body 1, a slider 803 is slidably installed inside the slide groove, a limit plate 807 is fixedly installed at the bottom of the slider 803, a reset spring 804 is fixedly installed between the limit plate 807 and the main body 1, a long plate 805 is rotatably installed inside the sewage trough, one side of the elastic bent plate 806 is fixedly installed at the bottom of the long plate 805, and the other side of the elastic bent plate 806 is fixedly installed inside the sewage trough. By setting a sewage discharge device to discharge internal impurities, it is prevented that impurities remain inside the main body 1 and cause the purified sewage to be contaminated again.

[0028] The limit plate 807 contacts the long plate 805, and the elastic force of the elastic bent plate 806 is greater than the elastic force of the reset spring 804. By setting the limit plate 807 and the long plate 805, when the sewage trough is used to discharge impurities, no sewage will flow out from the sewage outlet to pollute the environment.

[0029] When the present embodiment is working, when the connecting plate 703 moves, the connecting plate 703 moves to drive the connecting rod 801 to move, the connecting rod 801 moves to drive the scraper 802 to move, the scraper 802 moves to clean the inside of the main body 1, when the scraper 802 moves to the top of the sewage tank, impurities fall on the top of the long plate 805, the scraper 802 contacts the slider 803, the scraper 802 continues to move to move the slider 803, the slider 803 moves to drive the limit plate 807 to move, the limit plate 807 moves to release the limit on the long plate 805, and the long plate 805 Due to the gravity exerted by the impurities on the top on the long plate 805, the long plate 805 rotates downward, and the gravity exerted by the long plate 805 causes the impurities to fall into the sewage trough and be discharged. The long plate 805 is affected by the elastic force of the elastic bent plate 806 and rotates upward to reset. When the scraper 802 moves and does not contact the slider 803, the slider 803 and the limit plate 807 are reset by the elastic force of the reset spring 804, and the limit plate 807 limits the long plate 805 again. When the sewage purification is completed, the purified sewage is pumped out of the main body 1 through the outlet 4, and the device completes the purification work.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An easy-to-operate wastewater purification device for biotechnology research and development, comprising a main body (1), characterized in that: A medicine storage tank (2) is fixedly mounted on the top of the main body (1), a water inlet (3) is fixedly mounted on the front of the main body (1), a water outlet (4) is fixedly mounted on the rear of the main body (1), a driving motor (5) is fixedly mounted on the rear of the main body (1), a medicine spreading device is arranged inside the main body (1), a stirring device is arranged inside the main body (1), and a sewage discharge device is arranged inside the main body (1); The medicine spreading device comprises a baffle (601), a connecting rod (602), a cover plate (603), a gear (604), a rotating shaft (605), a short rod (606) and a round rod (607), wherein the baffle (601) is rotatably mounted inside the main body (1), the cover plate (603) is slidably mounted inside the main body (1), one end of the connecting rod (602) is rotatably mounted on the rear of the baffle (601), the other end of the connecting rod (602) is rotatably mounted on the bottom of the cover plate (603), the gear (604) is rotatably mounted inside the main body (1), one end of the rotating shaft (605) is fixedly mounted on the top of the gear (604), the short rod (606) is fixedly mounted on the other end of the rotating shaft (605), and the round rod (607) is fixedly mounted on the top of the short rod (606).

2. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 1, characterized in that: The baffle plate (601) is in contact with the water inlet (3), and a first spring sheet is fixedly mounted between the baffle plate (601) and the main body (1).

3. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 2, characterized in that: A small rack is fixedly mounted on the top of the cover plate (603), the small rack is meshed with the gear (604), and the top of the cover plate (603) is in contact with the bottom of the gear (604).

4. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 3, characterized in that: The stirring device comprises a screw (701), a moving block (702), a connecting plate (703), an L-shaped rod (704), a transmission gear (705), a rack (706), a ramp block (707), a flap (708), a fixed rod (709) and a blade (710), wherein one end of the screw (701) is rotatably mounted inside the main body (1), the screw (701) rotatably passes through the rear part of the main body (1), the other end of the screw (701) is fixedly mounted on the output end of the driving motor (5), the moving block (702) is threadedly connected to the screw (701), the connecting plate (703) is fixedly mounted on the top of the moving block (702), and the L-shaped rod (704) is fixedly mounted on the top of the moving block (702). ) is fixedly mounted on the top of the connecting plate (703), the transmission gear (705) is rotatably mounted on the bottom of the connecting plate (703), the rack (706) is fixedly mounted inside the main body (1), the transmission gear (705) is meshed with the rack (706), one end of the fixed rod (709) is fixedly mounted on the bottom of the transmission gear (705), the blade (710) is fixedly mounted on the other end of the fixed rod (709), the flap (708) is rotatably mounted on the bottom of the cover plate (603), the inclined block (707) is rotatably mounted on the bottom of the flap (708), and a second spring piece is fixedly mounted between the front of the inclined block (707) and the bottom of the flap (708).

5. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 4, characterized in that: The L-shaped rod (704) is in contact with an inclined plane block (707), and the bottom of the inclined plane block (707) is configured as an inclined plane.

6. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 5, characterized in that: A plurality of the fixing rods (709) and blades (710) are provided, and the blades (710) are spiral-shaped.

7. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 6, characterized in that: The sewage discharge device comprises a connecting rod (801), a scraper (802), a slider (803), a reset spring (804), a long plate (805), an elastic bent plate (806) and a limit plate (807); the scraper (802) is slidably mounted inside the main body (1); the connecting rod (801) is fixedly passed through the transmission gear (705); one end of the connecting rod (801) is fixedly mounted on the bottom of the connecting plate (703); one end of the connecting rod (801) is rotatably mounted on the top of the scraper (802); the main body ( 1) a sewage discharge groove is provided inside the main body (1), a slide groove is provided inside the main body (1), the slider (803) is slidably mounted inside the slide groove, the limit plate (807) is fixedly mounted at the bottom of the slider (803), the reset spring (804) is fixedly mounted between the limit plate (807) and the main body (1), the long plate (805) is rotatably mounted inside the sewage discharge groove, one side of the elastic bent plate (806) is fixedly mounted at the bottom of the long plate (805), and the other side of the elastic bent plate (806) is fixedly mounted inside the sewage discharge groove.

8. The easy-to-operate wastewater purification device for biotechnology research and development according to claim 7, characterized in that: The limiting plate (807) is in contact with the long plate (805), and the elastic force of the elastic bent plate (806) is greater than the elastic force of the reset spring (804).

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