Biochemical waste leakage-proof sealing device for inspection

Abstract

The application discloses a biochemical waste leakage-proof sealing device for inspection, and belongs to the technical field of biochemical waste sealing. The device comprises a storage barrel, a fixing ring is arranged at the top end of the storage barrel, a sealing cover is arranged at the top end of the storage barrel, and a fixing buckle is arranged in the sealing cover. In the application, the sealing assembly is arranged, so that the waste can be directly put into the storage barrel by opening the cover plate during the use of the storage barrel, and the waste does not need to be placed by unscrewing the sealing cover, so that the waste can be conveniently put into the storage barrel for multiple times. When the cover plate is closed, the first extrusion strip and the second extrusion strip can extrude the extrusion grooves at the edges of the cover plate, so that the cover plate has enough pressing force and is matched with the sealing ring on the surface of the sealing cover, and the sealing property between the cover plate and the sealing cover is ensured.

Description

Technical Field

[0001] This invention belongs to the field of biochemical waste sealing technology, and particularly relates to a leak-proof sealing device for biochemical waste used in testing. Background Technology

[0002] In the process of biochemical testing in medical care, scientific research, inspection and quarantine, a large amount of biochemical waste is generated every day, such as infectious medical waste, residual reagents, culture media, etc. These wastes usually have certain toxicity, corrosiveness, infectiousness, or are prone to volatile harmful and irritating gases. Therefore, before the waste is centrally processed, it must be temporarily stored in a special waste collection bin and the collection bin must be strictly sealed to prevent the leakage of harmful substances and odors, and to ensure the safety of testing personnel and the hygiene of the working environment.

[0003] Existing high-sealing waste bins typically use a screw-on, integral sealing cap. Each time waste is disposed of, the entire cap must be unscrewed and then tightened, which is cumbersome and affects work efficiency. For convenience, some collection bins use simple flip-top or foot-operated caps. When the cap is closed, it relies solely on its own weight to fit against the bin body, lacking an active downward locking structure. This results in incomplete sealing in certain areas, which can easily lead to the leakage of toxic gases or liquids. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that open-top collection buckets are prone to leaks due to relying solely on gravity for sealing. Therefore, this invention proposes a leak-proof sealing device for biochemical waste used in testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof sealing device for biochemical waste used in testing, comprising a storage tank, a fixing ring installed at the top of the storage tank, a sealing cap provided at the top of the storage tank, a fixing buckle provided inside the sealing cap, and further comprising: A sealing assembly, the sealing assembly including a cover plate rotatably disposed on the top surface of a sealing cover, and a sealing ring corresponding to the cover plate on the top surface of the sealing cover; The extrusion assembly includes a limiting seat disposed on the top surface of the sealing cover, and a push rod abutting against one side of the limiting seat. The top surface of the cover is extruded by the abutting between the push rod and the limiting seat. The connecting assembly includes a buckle disposed inside the fixing ring, and one side of the buckle is connected to the fixing buckle. The fixing buckle is pulled down by the buckle to pull the sealing cover to connect with the fixing ring.

[0006] As a further description of the above technical solution: The sealing assembly further includes: an extrusion groove, which is formed on the edge of the cover plate and has an inclined surface on the inner side; The second extrusion strip is slidably installed inside the sealing cover and is symmetrically arranged on both sides of the cover plate. The second extrusion strip corresponds to the extrusion groove, and one side of the second extrusion strip is provided with an inclined surface corresponding to the extrusion groove. The extrusion groove is extruded by the second extrusion strip to increase the downward extrusion force of the cover plate by utilizing the inclined surface.

[0007] As a further description of the above technical solution: The sealing assembly further includes a connecting plate, which is installed on one side of the second extrusion strip and has an inclined groove inside. A connecting frame is slidably disposed inside the sealing cover. A first extrusion strip is installed on one side of the connecting frame, and the first extrusion strip corresponds to the extrusion groove and is located between the second extrusion strips. The first extrusion strip is used to further extrude the cover plate by moving the connecting frame.

[0008] As a further description of the above technical solution: The sealing assembly further includes a connector, which is installed on one side of the connecting frame and is slidably connected to the connecting plate through an inclined groove inside the connecting plate. The connecting frame drives the connector to move so as to squeeze the connecting plate and the second extrusion strip to squeeze the cover plate. The first spring has one end mounted on one side of the connecting frame and the other end fixedly connected to the sealing cover, and there are multiple first springs arranged in this manner.

[0009] As a further description of the above technical solution: The sealing assembly further includes a connecting block, which is installed on the top surface of the connecting frame and is slidably disposed in a groove on the top surface of the sealing cover; The fixing seat is installed on the top surface of the cover plate; A flipping block is rotatably mounted on the top of a fixed base. One end of the flipping block has multiple teeth evenly arranged, and the interior of the flipping block has a slot corresponding to the connecting block.

[0010] As a further description of the above technical solution: The extrusion assembly further includes: a mounting base, which is mounted on the top surface of the cover plate and is located at the center of the cover plate; The sliding sleeve is symmetrically installed on the top surface of the mounting base, and the sliding sleeve is placed at an angle, pointing into the limiting groove inside the limiting base, and the abutment is slidably disposed inside the sliding sleeve. The extrusion block is slidably disposed inside the mounting base, and the extrusion block has inclined surfaces on both sides, and one end of the push rod has an inclined surface corresponding to the extrusion block. The extrusion block extrudes one side of the push rod to push the other end of the push rod to extrude the limiting seat.

[0011] As a further description of the above technical solution: The extrusion assembly further includes a slide plate, which is mounted on one side of the extrusion block and located below the flipping block; The toothed plate is mounted on the top surface of the slide plate and engages with the teeth. By flipping the flipping block, the teeth are used to slide the toothed plate and thus push the extrusion block to move.

[0012] As a further description of the above technical solution: The connecting assembly further includes: a first mounting ring, which is slidably mounted inside the fixed ring, and a rotating shaft is provided on the outer side of the first mounting ring, and a snap fastener is rotatably mounted on the outer wall of the rotating shaft; The second spring is installed at the bottom end of the first mounting ring, and the bottom end of the second spring is fixedly connected to the fixing ring.

[0013] As a further description of the above technical solution: The connecting assembly further includes: a second mounting ring, which is slidably mounted inside the fixed ring and located below the first mounting ring, and has a groove on one side corresponding to the second spring; The third spring is installed at the bottom end of the buckle, and the other end of the third spring is fixedly connected to the first mounting ring.

[0014] As a further description of the above technical solution: The connecting assembly further includes: a pressing column, which is installed on the top surface of the second mounting ring and has multiple columns arranged circumferentially. The pressing column is slidably connected to the first mounting ring through a through hole inside the first mounting ring, and the top of the pressing column corresponds to the side plate of the buckle. The pressing column pushes the buckle side to cause the buckle to flip and separate from the fixing buckle.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In this invention, by setting a sealing component, waste materials can be directly put into the storage container by opening the cover during use, without having to unscrew the sealing cover. This makes it convenient to put waste materials into the storage container multiple times. At the same time, when the cover is closed, the first and second extrusion strips can press the extrusion groove on the edge of the cover to ensure that the cover has sufficient downward pressure to fit against the sealing ring on the surface of the sealing cover, thereby ensuring the sealing between the cover and the sealing cover.

[0016] In this invention, by setting up an extrusion assembly, when the cover plate is closed, the extrusion block can be used to extrude the push rod, and under the limitation of the limiting seat, the reaction force of the push rod can act on the center position of the cover plate to increase the downward pressure of the cover plate. This further ensures that the cover plate can be tightly fitted with the sealing ring on the top surface of the sealing cover, so as to ensure the seal between the cover plate and the sealing cover and prevent the waste material from leaking out of the cover plate during subsequent storage.

[0017] In this invention, by setting a connecting component, when the sealing cap is connected to the storage container, it can be connected by a buckle and a fixing buckle. The buckle is pulled down by a second spring to ensure that the sealing cap can be tightly closed on the top of the storage container, thereby ensuring the sealing performance between the sealing cap and the storage container and preventing waste from leaking out from the gap between the sealing cap and the storage container, thus further ensuring the sealing performance of the sealing cap. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a leak-proof sealing device for biochemical waste used in testing.

[0019] Figure 2 This is a schematic diagram showing the disassembled structure of a leak-proof sealing device for biochemical waste used in testing.

[0020] Figure 3 This is a schematic diagram showing the disassembled structure of a sealing component in a leak-proof sealing device for biochemical waste used in testing.

[0021] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of the extrusion component in a leak-proof sealing device for biochemical waste used in testing.

[0023] Figure 6 This is a schematic diagram showing the disassembled structure of the connecting components in a leak-proof sealing device for biochemical waste used in testing.

[0024] Figure 7 for Figure 6 A magnified structural diagram of part A in the middle.

[0025] Figure 8 This is a cross-sectional schematic diagram of the connecting component in a leak-proof sealing device for biochemical waste used in testing.

[0026] Legend: 1. Storage container; 2. Fixing ring; 3. Sealing cover; 4. Sealing assembly; 401. Cover plate; 402. Extrusion groove; 403. First extrusion strip; 404. Connecting block; 405. Flipping block; 406. First spring; 407. Connecting frame; 408. Second extrusion strip; 409. Connecting plate; 410. Connecting head; 411. Tooth; 412. Fixing seat; 5. Extrusion assembly; 501. Limiting seat; 502. Push rod; 503. Sliding sleeve; 504. Mounting seat; 505. Extrusion block; 506. Slide plate; 507. Toothed plate; 6. Connecting assembly; 601. First mounting ring; 602. Second spring; 603. Second mounting ring; 604. Buckle; 605. Extrusion column; 606. Rotating shaft; 607. Third spring; 7. Fixing buckle. Detailed Implementation

[0027] 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.

[0028] Please see Figures 1-8 The present invention provides a technical solution: a leak-proof sealing device for biochemical waste used in testing, comprising a storage tank 1, a fixing ring 2 installed at the top of the storage tank 1, a sealing cap 3 at the top of the storage tank 1, and a fixing buckle 7 inside the sealing cap 3, and further comprising: The sealing assembly 4 includes a cover plate 401 rotatably disposed on the top surface of the sealing cover 3, and the top surface of the sealing cover 3 is provided with a sealing ring corresponding to the cover plate 401. The extrusion assembly 5 includes a limiting seat 501 disposed on the top surface of the sealing cover 3. A push rod 502 abuts against one side of the limiting seat 501. The top surface of the cover plate 401 is extruded by the abutment between the push rod 502 and the limiting seat 501. The connecting component 6 includes a buckle 604 disposed inside the fixing ring 2, and one side of the buckle 604 is connected to the fixing buckle 7. The fixing buckle 7 is pulled down by the buckle 604 to pull the sealing cover 3 to connect with the fixing ring 2. like Figure 3 , Figure 4 As shown, the sealing assembly 4 also includes: an extrusion groove 402 and a second extrusion strip 408; The extrusion groove 402 is formed on the edge of the cover plate 401, and the inner side of the extrusion groove 402 is provided with an inclined surface. The second extrusion strip 408 is slidably installed inside the sealing cover 3, and the second extrusion strip 408 is symmetrically arranged on both sides of the cover plate 401. The second extrusion strip 408 corresponds to the extrusion groove 402, and one side of the second extrusion strip 408 is provided with an inclined surface corresponding to the extrusion groove 402. The extrusion groove 402 is extruded by the second extrusion strip 408 to increase the downward extrusion force of the cover plate 401 by utilizing the inclined surface. The sealing assembly 4 also includes: a connecting plate 409 and a connecting bracket 407; A connecting plate 409 is installed on one side of the second extrusion strip 408, and the connecting plate 409 has an inclined groove inside. The connecting frame 407 is slidably disposed inside the sealing cover 3. A first extrusion strip 403 is installed on one side of the connecting frame 407, and the first extrusion strip 403 corresponds to the extrusion groove 402. The first extrusion strip 403 is located between the second extrusion strips 408. The cover plate 401 is further extruded by the first extrusion strip 403 through the movement of the connecting frame 407. The sealing assembly 4 also includes: a connector 410 and a first spring 406; The connector 410 is installed on one side of the connecting frame 407, and the connector 410 is slidably connected to the connecting plate 409 through the inclined groove inside the connecting plate 409. The connecting frame 407 drives the connector 410 to move so as to squeeze the connecting plate 409 and the second extrusion strip 408 to squeeze the cover plate 401. One end of the first spring 406 is installed on one side of the connecting frame 407, and the other end of the first spring 406 is fixedly connected to the sealing cover 3. Multiple first springs 406 are arranged. The sealing assembly 4 also includes: a connecting block 404, a fixing seat 412, and a flipping block 405; The connecting block 404 is installed on the top surface of the connecting frame 407 and is slidably disposed in the groove on the top surface of the sealing cover 3. The fixing seat 412 is installed on the top surface of the cover plate 401. The flipping block 405 is rotatably installed on the top of the fixing seat 412. Multiple teeth 411 are evenly arranged on one end of the flipping block 405, and the flipping block 405 has a slot inside that corresponds to the connecting block 404.

[0029] Specifically: During use, the flipping block 405 can be pulled to separate it from the connecting block 404, and the connecting frame 407 can be moved under the action of the first spring 406, so that the first extrusion strip 403 is separated from the extrusion groove 402. At the same time, under the sliding of the connecting frame 407, the connecting head 410 can be used to drive the connecting plate 409 and the second extrusion strip 408 to move, thereby driving the second extrusion strip 408 to separate from the extrusion groove 402, which can then drive the cover plate 401 to flip, so that the top opening of the sealing cover 3 is exposed, so as to facilitate the waste material to be put into the storage bucket 1. Furthermore, after the waste material has been placed in, the cover plate 401 can be reattached to the top surface of the sealing cover 3, and the connecting block 404 can be pressed by the flipping block 405 to pull the connecting frame 407 to move, so that the first pressing strip 403 presses the pressing groove 402 on the end side of the cover plate 401, thereby increasing the downward pressure of the cover plate 401 and ensuring that the cover plate 401 can fit tightly with the sealing ring on the top surface of the sealing cover 3. Furthermore, when the connecting frame 407 moves, the connecting plate 409 can be moved by the connection between the connecting head 410 and the inclined groove inside the connecting plate 409, so as to use the second extrusion strip 408 to extrude the extrusion grooves 402 on both sides of the cover plate 401, thereby further increasing the downward pressure of the cover plate 401 and further ensuring the sealing between the cover plate 401 and the sealing cover 3.

[0030] like Figure 5 As shown, the extrusion assembly 5 also includes: a mounting base 504, a sliding sleeve 503, and an extrusion block 505; Mounting seat 504 is installed on the top surface of cover plate 401 and is located at the center of cover plate 401. Sliding sleeve 503 is symmetrically installed on the top surface of mounting seat 504 and is placed at an angle, pointing towards the limiting groove inside the limiting seat 501. Push rod 502 is slidably disposed inside sliding sleeve 503. Compression block 505 is slidably disposed inside mounting seat 504 and has inclined surfaces on both sides. One end of push rod 502 has an inclined surface corresponding to compression block 505. Compression block 505 compresses one side of push rod 502 to push the other end of push rod 502 to compress limiting seat 501. The extrusion assembly 5 also includes: a slide plate 506 and a toothed plate 507; The slide plate 506 is installed on one side of the extrusion block 505 and is located below the flipping block 405. The toothed plate 507 is installed on the top surface of the slide plate 506 and meshes with the teeth 411. By flipping the flipping block 405, the teeth 411 are used to push the toothed plate 507 to slide, thereby pushing the extrusion block 505 to move.

[0031] Specifically: When the cover plate 401 is opened by rotating the flipping block 405, the teeth 411 at one end of the flipping block 405 can move the toothed plate 507 and the sliding plate 506, thereby pulling the pressing block 505 outward, so that the pressing block 505 no longer presses the abutment 502, so that the other end of the abutment 502 no longer abuts against the limiting seat 501, thereby separating the abutment 502 from the limiting seat 501, so that the cover plate 401 can be opened smoothly. Furthermore, when the cover plate 401 is closed, as the flipping block 405 rotates, the teeth 411 can push the toothed plate 507 to move the slide plate 506, so that the slide plate 506 can push the pressing block 505 to slide into the mounting base 504, and the pressing of the inclined surfaces on both sides of the pressing block 505 on one end of the abutment rod 502 can push the abutment rod 502 to move. Furthermore, since the abutment 502 is slidably disposed inside the sliding sleeve 503, and the sliding sleeve 503 is inclined toward the groove on one side of the limiting seat 501, the other end of the abutment 502 abuts against the limiting seat 501 under the pressure of the pressing block 505. At the same time, since the mounting seat 504 is located at the center of the cover plate 401, and the sliding sleeve 503 is placed at an incline, the reaction force of the abutment 502 can act on the center of the cover plate 401 and press down, so as to further ensure that the cover plate 401 and the sealing ring are tightly fitted.

[0032] like Figures 6-8 As shown, the connecting component 6 also includes: a first mounting ring 601 and a second spring 602; The first mounting ring 601 is slidably mounted inside the fixed ring 2. A rotating shaft 606 is provided on the outer side of the first mounting ring 601, and a buckle 604 is rotatably mounted on the outer wall of the rotating shaft 606. The second spring 602 is mounted on the bottom end of the first mounting ring 601, and the bottom end of the second spring 602 is fixedly connected to the fixed ring 2. The connecting assembly 6 also includes: a second mounting ring 603 and a third spring 607; The second mounting ring 603 is slidably installed inside the fixed ring 2, and the second mounting ring 603 is located below the first mounting ring 601. The second mounting ring 603 has a groove on one side corresponding to the second spring 602. The third spring 607 is installed at the bottom of the buckle 604, and the other end of the third spring 607 is fixedly connected to the first mounting ring 601. The connecting assembly 6 also includes: a pressing post 605, which is installed on the top surface of the second mounting ring 603, and multiple pressing posts 605 are arranged circumferentially. The pressing posts 605 are slidably connected to the first mounting ring 601 through the internal through hole of the first mounting ring 601. The top of the pressing post 605 corresponds to one side plate of the buckle 604. The pressing post 605 pushes one side of the buckle 604 to make the buckle 604 flip and separate from the fixing buckle 7.

[0033] Specifically: After the sealing cap 3 and the storage container 1 are screwed together, the first mounting ring 601 can be pushed upwards and the buckle 604 can be pushed into the groove on the bottom surface of the sealing cap 3, and at this time the second spring 602 will be stretched. Furthermore, during the upward movement of the buckle 604, when the top of the buckle 604 contacts the bottom of the fixing buckle 7, the top of the buckle 604 is pushed and rotates. When the buckle 604 moves to the top of the fixing buckle 7, the third spring 607 can push the buckle 604 to connect the buckle 604 with the fixing buckle 7, and the second spring 602 can pull down the first mounting ring 601 and the buckle 604, thereby pulling down the fixing buckle 7 to ensure that the sealing cover 3 can be pressed down tightly and to ensure the seal between the sealing cover 3 and the storage container 1. Furthermore, if it is necessary to separate the buckle 604 from the fixing buckle 7, the second mounting ring 603 can be pushed upward to push the side plate on one side of the buckle 604 using the squeezing post 605, thereby causing the buckle 604 to rotate and separate from the fixing buckle 7, so that the buckle 604 can be removed from the inside of the sealing cover 3.

[0034] Working principle: By rotating the flipping block 405, the meshing transmission between its teeth 411 and the toothed plate 507 on the top surface of the slide plate 506 drives the slide plate 506 to slide, thereby pushing the pressing block 505 to move within the mounting base 504. The inclined surfaces on both sides of the pressing block 505 push the push rod 502 to slide within the sliding sleeve 503, so that its end abuts or separates from the limiting seat 501, thereby controlling the locking and releasing of the cover plate 401. Furthermore, the flipping block 405, through the cooperation of the slot and the connecting block 404, drives the connecting frame 407 to slide. The first extrusion strip 403 on one side of the connecting frame 407 directly extrudes the extrusion groove 402 on the edge of the cover plate 401, and the connector 410 on the connecting frame 407 slides along the inclined groove in the connecting plate 409, pushing the connecting plate 409 and the second extrusion strip 408 to move synchronously, so that the first extrusion strip 403 and the second extrusion strip 408 jointly apply downward pressure to the extrusion groove 402 from both sides and the end, and under the reset action of the first spring 406, the cover plate 401 is opened or the sealing pressure is enhanced when the cover is closed. Furthermore, when the sealing cover 3 is connected to the fixing ring 2, the first mounting ring 601 is pushed up to drive the buckle 604 to rise. At the same time, the buckle 604 engages with the fixing buckle 7 under the action of the third spring 607, and the first mounting ring 601 and the buckle 604 are pulled down under the tension and pull-back action of the second spring 602, so that the sealing cover 3 is tightly pressed down and fixed. When separation is required, the second mounting ring 603 is pushed up, and the extrusion post 605 on its top surface passes through the through hole of the first mounting ring 601 and pushes the side plate of the buckle 604, so that the buckle 604 rotates around the rotating shaft 606 and disengages from the fixing buckle 7, thereby realizing the unlocking and disassembly of the sealing cover 3. The entire transmission process ensures multiple sealing and reliable leakage prevention performance between the cover plate 401 and the sealing cover 3, and between the sealing cover 3 and the storage container 1 through the linkage and cooperation of various components.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A leak-proof sealing device for biochemical waste used in testing, comprising: A storage container (1), wherein a fixing ring (2) is installed at the top of the storage container (1), and a sealing cap (3) is provided at the top of the storage container (1), wherein a fixing buckle (7) is provided inside the sealing cap (3), characterized in that it further includes: The sealing assembly (4) includes a cover plate (401) rotatably disposed on the top surface of the sealing cover (3), and the top surface of the sealing cover (3) is provided with a sealing ring corresponding to the cover plate (401); The extrusion assembly (5) includes a limiting seat (501) disposed on the top surface of the sealing cover (3). A push rod (502) is abutted on one side of the limiting seat (501). The top surface of the cover plate (401) is extruded by the abutment between the push rod (502) and the limiting seat (501). The connecting component (6) includes a buckle (604) disposed inside the fixing ring (2), and one side of the buckle (604) is connected to the fixing buckle (7). The fixing buckle (7) is pulled down by the buckle (604) to pull the sealing cover (3) to connect with the fixing ring (2).

2. The leak-proof sealing device for biochemical waste used in testing according to claim 1, characterized in that, The sealing assembly (4) further includes: An extrusion groove (402) is formed on the edge of the cover plate (401), and the inner side of the extrusion groove (402) is provided with an inclined surface; The second extrusion strip (408) is slidably installed inside the sealing cover (3) and is symmetrically arranged on both sides of the cover plate (401). The second extrusion strip (408) corresponds to the extrusion groove (402), and one side of the second extrusion strip (408) is provided with an inclined surface corresponding to the extrusion groove (402). The extrusion strip (408) extrudes the extrusion groove (402) to increase the downward extrusion force of the cover plate (401) by using the inclined surface.

3. The leak-proof sealing device for biochemical waste used in testing according to claim 2, characterized in that, The sealing assembly (4) further includes: A connecting plate (409) is installed on one side of the second extrusion strip (408), and the connecting plate (409) has an inclined groove inside; A connecting frame (407) is slidably disposed inside the sealing cover (3). A first extrusion strip (403) is installed on one side of the connecting frame (407), and the first extrusion strip (403) corresponds to the extrusion groove (402). The first extrusion strip (403) is located between the second extrusion strips (408). The first extrusion strip (403) is used to further extrude the cover plate (401) by moving the connecting frame (407).

4. The leak-proof sealing device for biochemical waste used in testing according to claim 3, characterized in that, The sealing assembly (4) further includes: Connector (410), the connector (410) is installed on one side of the connecting frame (407), and the connector (410) is slidably connected to the connecting plate (409) through the inclined groove inside the connecting plate (409). The connecting frame (407) drives the connector (410) to move so as to squeeze the connecting plate (409) and the second extrusion strip (408) to squeeze the cover plate (401); The first spring (406) has one end installed on one side of the connecting bracket (407) and the other end fixedly connected to the sealing cover (3), and there are multiple first springs (406).

5. A leak-proof sealing device for biochemical waste used in testing according to claim 3, characterized in that, The sealing assembly (4) further includes: Connecting block (404), the connecting block (404) is installed on the top surface of the connecting frame (407), and the connecting block (404) is slidably disposed in the groove on the top surface of the sealing cover (3); A fixing seat (412) is mounted on the top surface of the cover plate (401); A flip block (405) is rotatably mounted on the top of a fixed base (412). One end of the flip block (405) is evenly arranged with multiple teeth (411), and the interior of the flip block (405) is provided with a slot corresponding to the connecting block (404).

6. A leak-proof sealing device for biochemical waste used in testing according to claim 5, characterized in that, The extrusion assembly (5) further includes: Mounting base (504), the mounting base (504) is mounted on the top surface of the cover plate (401), and the mounting base (504) is located at the center of the cover plate (401); The sliding sleeve (503) is symmetrically installed on the top surface of the mounting base (504), and the sliding sleeve (503) is placed at an angle, and the sliding sleeve (503) points into the limiting groove inside the limiting base (501), and the abutment rod (502) is slidably disposed inside the sliding sleeve (503). The extrusion block (505) is slidably disposed inside the mounting base (504), and the extrusion block (505) has inclined surfaces on both sides, and the push rod (502) has an inclined surface at one end corresponding to the extrusion block (505). The extrusion block (505) extrudes one side of the push rod (502) to push the other end of the push rod (502) to extrude the limiting seat (501).

7. A leak-proof sealing device for biochemical waste used in testing according to claim 6, characterized in that, The extrusion assembly (5) further includes: A sliding plate (506) is mounted on one side of the extrusion block (505) and is located below the flipping block (405); The toothed plate (507) is mounted on the top surface of the slide plate (506) and meshes with the teeth (411). The toothed plate (507) is moved by the teeth (411) through the flipping of the flipping block (405) to slide and push the squeezing block (505) to move.

8. A leak-proof sealing device for biochemical waste used in testing according to claim 1, characterized in that, The connection component (6) further includes: The first mounting ring (601) is slidably mounted inside the fixed ring (2). The first mounting ring (601) has a rotating shaft (606) on its outer side, and a buckle (604) is rotatably mounted on the outer wall of the rotating shaft (606). The second spring (602) is installed at the bottom end of the first mounting ring (601), and the bottom end of the second spring (602) is fixedly connected to the fixing ring (2).

9. A leak-proof sealing device for biochemical waste used in testing according to claim 8, characterized in that, The connection component (6) further includes: The second mounting ring (603) is slidably mounted inside the fixed ring (2), and the second mounting ring (603) is located below the first mounting ring (601), and a groove corresponding to the second spring (602) is provided on one side of the second mounting ring (603); The third spring (607) is installed at the bottom of the buckle (604), and the other end of the third spring (607) is fixedly connected to the first mounting ring (601).

10. A leak-proof sealing device for biochemical waste used in testing according to claim 9, characterized in that, The connection component (6) further includes: The extrusion column (605) is installed on the top surface of the second mounting ring (603), and there are multiple extrusion columns (605) arranged around the circumference. The extrusion column (605) is slidably connected to the first mounting ring (601) through the internal through hole of the first mounting ring (601). The top of the extrusion column (605) corresponds to the side plate of the buckle (604). The extrusion column (605) pushes the buckle (604) to the side so that the buckle (604) flips and separates from the fixing buckle (7).

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