Medical waste treatment device for laboratory
By combining a double-threaded rod driven by an electric motor with frictional vibration and a negative pressure pump to spray disinfectant liquid, the problems of hand contamination, inadequate sealing, incomplete disinfection, and complex structure of existing devices have been solved, achieving contactless sealing, all-round disinfection, and energy-saving collection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HOSPITAL OF DERMATOLOGY CHINESE ACADEMY OF MEDICAL SCIENCES
- Filing Date
- 2026-03-13
- Publication Date
- 2026-04-24
AI Technical Summary
Existing laboratory medical waste treatment devices have problems such as the need to manually open and close the sealing cap, which poses a risk of hand contamination; inadequate sealing; incomplete disinfection; complex structure and high energy consumption; and waste accumulation.
An electric motor drives a double-threaded rod to move a sliding block and an isolation shell synchronously. Combined with the vibration of friction protrusions to disperse waste, a gear meshing negative pressure pump sprays disinfectant liquid, and a foot pedal controls the opening and closing of the sealing plate. The negative pressure pump and disinfectant liquid work together for disinfection.
It enables hand-free, sealed operation, reduces the risk of infection, improves disinfection effectiveness, simplifies the structure and saves energy, and optimizes the decentralized collection of waste.
Smart Images

Figure CN121913249A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical waste collection technology, and more particularly to a laboratory medical waste treatment device. Background Technology
[0002] Currently, a large number of medical devices are used in central laboratories, including medical device waste. Because medical waste carries a large number of germs and viruses, the safety of its collection and disposal process is crucial to the health of medical personnel and the medical environment. Examples include discarded needles and syringes. However, existing medical waste isolation devices have many technical shortcomings in practical applications, making it difficult to meet the requirements for efficient infection prevention. Specifically: The existing medical waste disposal equipment used in the central laboratory has a sealed cover at the disposal port. The sealed cover needs to be opened and closed manually by medical staff. The medical staff's hands come into direct contact with the cover or switch, which can easily cause hand contamination. In addition, the sealing structure of some devices is rudimentary. After disposal, the sealing structure is difficult to completely seal, which leads to the leakage of germs and odors from the collection chamber, increasing the risk of infection for medical staff. Traditional devices often rely on manual disinfection after the fact, which can easily lead to the growth and reproduction of bacteria in the collection chamber. Although some devices are equipped with disinfection structures, the angle of the disinfectant spray is limited, especially in areas where waste accumulates, which can easily lead to incomplete disinfection. In addition, the disinfection and suction functions are often driven independently, requiring an additional power source, which results in complex device structures and increased energy consumption. For example, needles and syringes tend to accumulate after being dispensed, which reduces the internal storage space of the device and affects the amount of waste that can be dispensed later. Summary of the Invention
[0003] This invention relates to a laboratory medical waste disposal device. An electric motor drives a double-threaded rod to rotate, causing a sliding block and an isolation shell to move synchronously, thus moving the isolation shell. During movement, friction protrusions and friction rollers engage to vibrate the isolation shell, aiding in waste dispersion. A rack and pinion mesh with a negative pressure pump, converting the movement of the isolation shell into negative pressure pump power, which disinfects the waste through a drainage pipe and spray holes. Medical personnel step on a pedal, which drives a rotating shaft and a docking shaft to open and close a sealing plate, achieving contactless disposal.
[0004] This invention provides a laboratory medical waste treatment device, specifically comprising: a base, an electric motor mounted on one side of the base, a set of bolt mounting holes at the corner of the electric motor, a movably connected rack mounted on one side of the base, an isolation shell mounted above the base, a collection shell mounted inside the isolation shell, a cover plate mounted above the isolation shell, a stabilizing block at the bottom of the cover plate, a negative pressure pump mounted on one side of the base, a storage shell mounted above the negative pressure pump, a drainage sleeve at the bottom of the storage shell communicating with the top of the negative pressure pump, and a set of stabilizing blocks at the bottom of the storage shell.
[0005] Furthermore, a transverse sliding groove is formed in the middle of the base. The sliding groove has a T-shaped structure. A rotatably connected threaded rod is installed on the inner side of the sliding groove. One side of the threaded rod is connected to the drive shaft of the electric motor. A positioning block is installed on one side of the sliding groove, and the other side of the threaded rod is rotatably connected to the positioning block.
[0006] Furthermore, the threaded rod has a double-threaded structure, and two sliding blocks are installed on the inner side of the sliding groove of the base. The electric motor, the threaded rod, and the sliding blocks cooperate to form a driving mechanism. A threaded hole is opened at the bottom of each sliding block, and the spirals of the threaded holes are opposite in direction. The threaded rod passes through the interior of the threaded holes respectively.
[0007] Furthermore, a docking groove is provided above the sliding block. The docking groove has a rectangular structure, and a docking block is provided at the bottom of the isolation shell, extending into the interior of the docking groove.
[0008] Furthermore, a set of evenly distributed friction protrusions are provided at the upper position of the base. The friction protrusions have an arc structure, and a friction roller is installed at the bottom position of the isolation shell. The friction roller and the friction protrusions are aligned.
[0009] Furthermore, on one side of the base, there is a vertical positioning rod on each side. The positioning rod is a cylindrical structure. A sliding hole corresponding to the positioning rod is opened on each side of the rack. The positioning rod passes through the interior of the sliding hole. A support spring is installed on the outer side of the positioning rod.
[0010] Furthermore, a vertical sliding hole is opened on each side of the bottom of the isolation housing, a sliding rod is inserted into the sliding hole, a roller is installed at the bottom of the sliding rod, and a guide groove corresponding to the roller is opened on each side of the base, with the roller extending into the interior of the guide groove.
[0011] Furthermore, a transverse driven shaft is installed on one side of the negative pressure pump, and a rotatably connected drive shaft is installed at the bottom of the negative pressure pump. A pulley is installed on one side of the driven shaft and the drive shaft respectively, and a belt is installed between the two pulleys. A gear is installed on the outer side of the drive shaft, and the gear meshes with a rack.
[0012] Furthermore, a placement hole is provided in the middle of the cover plate, and a positioning sleeve is provided on one side of the cover plate and the isolation shell respectively. A bearing is installed on the inner side of the positioning sleeve, and a rotating shaft and a docking shaft are inserted inside the bearing respectively. A set of positioning grooves distributed in a ring array are provided at the bottom of the docking shaft. The positioning grooves are arc structures. A slot corresponding to the bottom of the docking shaft is provided above the rotating shaft. The positioning groove and the slot at the bottom of the docking shaft engage.
[0013] Furthermore, a foot pedal is provided at the bottom of the rotating shaft, and a sealing plate is provided above the docking shaft. The sealing plate corresponds to the placement hole of the collecting housing. A torsion spring is installed between the positioning sleeve of the cover plate and the docking shaft. The isolation housing, collecting housing, cover plate, sliding rod, foot pedal, rotating shaft, docking shaft, and sealing plate cooperate with each other to form an isolation device.
[0014] Furthermore, the collection housing includes spray holes. A set of spray holes is opened on one side of the collection housing. The spray holes at the edge position have an inclined structure. A drainage pipe is installed on one side of the negative pressure pump. A drainage hole is opened on one side of the isolation housing. The upper part of the drainage pipe is installed inside the drainage hole. The drainage hole and the spray holes are aligned.
[0015] This invention provides a laboratory medical waste treatment device, which has the following beneficial effects: The laboratory medical waste treatment device of the present invention is provided with an isolation shell, a collection shell, a cover plate and a sealing plate to form an isolation device for isolating and storing medical waste. A placement hole is provided in the middle of the cover plate, and the medical waste falls into the collection shell for collection through the placement hole. Specifically, the foot-operated design combined with the torsion spring reset allows medical staff to control the opening and closing of the sealing plate without hand contact, avoiding hand contact contamination and improving operational hygiene. The sealing plate normally closes the placement hole, effectively preventing the spread of germs and odors from the collection shell, reducing the risk of infection for medical staff and ensuring a safe medical environment.
[0016] The spray nozzles spray disinfectant liquid at multiple angles, combined with negative pressure suction, to achieve immediate disinfection after waste disposal, improve the sterilization rate of germs and reduce secondary pollution. The mechanical linkage between the movement of the isolation shell and the negative pressure pump eliminates the need for an additional power source to drive the negative pressure pump, simplifying the structure and saving energy. Specifically, the inclined spray holes, in conjunction with the drainage pipe, allow the disinfectant liquid drawn by the negative pressure pump to be sprayed in multiple directions, fully covering the inside of the collection shell, thus disinfecting and reducing dust in medical waste in real time, and improving the sterilization rate and dust removal effect.
[0017] Friction protrusions and friction rollers are incorporated into the movable isolation device. The two work together to generate regular vibrations in the isolation shell during movement, which helps to disperse medical waste and organize the space inside the isolation shell, reducing waste accumulation, optimizing collection efficiency, and also helps to shake off residual liquid on the surface of waste, reducing the risk of contamination during subsequent treatment and optimizing the collection effect of medical waste. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.
[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.
[0020] In the attached diagram: Figure 1 A schematic diagram of the axial structure of the infection prevention and isolation device of the present invention after assembly is shown; Figure 2 The present invention is shown Figure 1 A schematic diagram of a partial axial side structure; Figure 3 This diagram shows a cross-sectional view of the anti-infection isolation device of the present invention from an axial side perspective. Figure 4 The present invention is shown Figure 3 Front view structural diagram; Figure 5 A schematic diagram of the isolating device and storage housing cross-section of the present invention is shown. Figure 6 The diagram shows the isolating device and negative pressure pump of the present invention from an elevation view axial side structure. Figure 7 A schematic diagram of the axial structure of the base, drive mechanism, and isolation housing cross-section of the present invention is shown. Figure 8 A partial axonometric structural schematic diagram of the drive mechanism and isolation device of the present invention is shown; Figure 9 The present invention is shown Figure 1 A magnified structural diagram at point A; Figure 10 The present invention is shown Figure 5 A magnified structural diagram at point B; Figure 11 The present invention is shown Figure 5A magnified structural diagram at point C; Figure 12 The present invention is shown Figure 5 A magnified structural diagram at point D.
[0021] List of reference numerals 1. Base; 101. Friction protrusion; 102. Positioning rod; 2. Drive mechanism; 201. Electric motor; 202. Threaded rod; 203. Sliding block; 3. Gear rack; 4. Isolation device; 401. Isolation housing; 402. Collection housing; 40201. Spray hole; 403. Cover plate; 404. Sliding rod; 405. Foot pedal; 406. Rotating shaft; 407. Connecting shaft; 408. Sealing plate; 5. Negative pressure pump; 501. Driven shaft; 502. Drive shaft; 503. Drainage pipe; 6. Storage casing. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. Based on the described 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.
[0023] Example 1: Please refer to Figures 1 to 12 : This invention proposes a laboratory medical waste treatment device, comprising: a base 1, an electric motor 201 mounted on one side of the base 1, a set of bolt mounting holes opened at the corner of the electric motor 201, and matching bolts installed at the bolt mounting holes to stabilize the electric motor 201 after bolt installation; a transverse sliding groove with a T-shaped structure opened in the middle of the base 1, a rotatably connected threaded rod 202 mounted on the inner side of the sliding groove, one side of the threaded rod 202 connected to the drive shaft of the electric motor 201, and the connection position of the threaded rod 202 and the drive shaft set with a keyway circumferential positioning according to the prior art; a positioning block mounted on one side of the sliding groove, and the other side of the threaded rod 202 rotatably connected to the positioning block; specifically, the sliding groove provides rotation space for the threaded rod 202 and restricts its axial movement, and the keyway circumferential positioning ensures reliable torque transmission between the threaded rod 202 and the drive shaft of the electric motor 201; In this embodiment, a movably connected rack 3 is installed on one side of the base 1. A vertical positioning rod 102 is provided on each side of the base 1. The positioning rod 102 is a cylindrical structure. A sliding hole corresponding to the positioning rod 102 is opened on each side of the rack 3. The positioning rod 102 passes through the interior of the sliding hole. A support spring is installed on the outer side of the positioning rod 102, providing elastic support to the rack 3 upwards. Specifically, the positioning rod 102 provides vertical guidance for the rack 3, preventing tilting or offset during movement and ensuring stable meshing between the rack 3 and the gear. The support spring provides the rack 3 with elastic reset capability, maintaining the meshing state between the rack 3 and the gear even under external force, ensuring reliable operation of the negative pressure pump 5 linkage structure and improving the transmission stability of the device. A set of isolation housings 401 is installed above the base 1. The threaded rod 202 has a double-threaded structure. Two sliding blocks 203 are installed on the inner side of the sliding groove of the base 1. An electric motor 201 and a threaded rod are also present. Rod 202 and sliding block 203 cooperate to form drive mechanism 2. A threaded hole is opened at the bottom of each sliding block 203, and the threads of the threaded holes are opposite in direction. The threaded rod 202 passes through the inside of the threaded hole. Specifically, the double thread structure combined with the reverse threaded hole allows the two sliding blocks 203 to move synchronously in opposite directions under the drive of electric motor 201, realizing the movement of isolation housing 401. A docking groove is opened at the top of the sliding block 203. The docking groove is a rectangular structure. A docking block is provided at the bottom of the isolation housing 401. The docking block extends into the inside of the docking groove. With the cooperation of the docking groove and the docking block, when the sliding block 203 moves, it will drive the isolation housing 401 to move synchronously. Specifically, the rectangular docking groove and the docking block form a rigid connection, accurately transmitting the linear motion of the sliding block 203 to the isolation housing 401, ensuring that the isolation housing 401 moves in the same direction and with synchronous displacement as the sliding block 203, realizing the smooth movement of the isolation housing 401. In this embodiment, a set of evenly distributed friction protrusions 101 are provided on the upper part of the base 1. The friction protrusions 101 have an arc structure. A friction roller is installed at the bottom of the isolation shell 401. The friction roller and the friction protrusions 101 are aligned. When the isolation shell 401 moves, the friction roller will squeeze the friction protrusions 101 and cause them to bounce. At this time, the isolation shell 401 will vibrate due to the force. Specifically, by using the cooperation between the friction protrusions 101 and the friction roller, the isolation shell 401 will generate regular vibrations during movement, which can promote the dispersion and organization of medical waste inside the isolation shell 401. At the same time, it helps to shake off residual liquid on the surface of the waste, reduce the risk of contamination during subsequent treatment, and optimize the collection effect of medical waste. A collection shell 40 is installed on the inner side of the isolation shell 401. 2. The collection housing 402 is used to collect medical waste such as discarded needles and syringes. A cover plate 403 is installed on the top of the isolation housing 401. A stabilizing block is provided at the bottom of the cover plate 403. After the cover plate 403 is installed, it is horizontally stabilized with the stabilizing block. A vertical sliding hole is opened on both sides of the bottom of the isolation housing 401. A sliding rod 404 is inserted into the inside of the sliding hole. A roller is installed at the bottom of the sliding rod 404. A guide groove corresponding to the roller is opened on both sides of the base 1. The roller extends into the inside of the guide groove. Specifically, the sliding rod 404 cooperates with the sliding hole to guide the isolation housing 401 vertically. The roller cooperates with the guide groove to convert the sliding friction of the isolation housing 401 into rolling friction, so that the isolation housing 401 can move flexibly. In this embodiment, a placement hole is provided in the middle of the cover plate 403. A positioning sleeve is provided on one side of the cover plate 403 and the isolation housing 401. A bearing is installed on the inner side of the positioning sleeve. A rotating shaft 406 and a docking shaft 407 are respectively inserted inside the bearing. A set of positioning grooves distributed in a circular array is provided at the bottom of the docking shaft 407. The positioning grooves are arc structures. A slot corresponding to the bottom of the docking shaft 407 is provided above the rotating shaft 406. The positioning groove and the slot at the bottom of the docking shaft 407 engage. Specifically, the positioning sleeve and the bearing cooperate to make the rotating shaft 406 and the docking shaft 407 rotate more smoothly. The engagement structure of the circular array positioning groove and the slot can realize docking of the rotating shaft 406 and the docking shaft 407 at different angles. A foot pedal 405 is provided at the bottom of the rotating shaft 406. A sealing plate 408 is provided above the docking shaft 407. Corresponding to the placement hole of the collection housing 402, a torsion spring is installed between the positioning sleeve of the cover plate 403 and the docking shaft 407. The isolation housing 401, collection housing 402, cover plate 403, sliding rod 404, foot pedal 405, rotating shaft 406, docking shaft 407, and sealing plate 408 cooperate to form the isolation device 4. The torsion spring supports the foot pedal 405 and the sealing plate 408 to return to their original position. Medical staff use their feet to rotate the foot pedal 405. At this time, the rotating shaft 406 and the docking shaft 407 cooperate to drive the sealing plate 408 to swing. At this time, the placement hole is exposed. Specifically, the foot-operated operation combined with the torsion spring return allows medical staff to control the opening and closing of the sealing plate 408 without hand contact, avoiding hand contact contamination and improving the hygiene of operation. The sealing plate 408 normally closes the placement hole, effectively preventing the spread of germs and odors in the collection housing 402, reducing the risk of infection, and ensuring the safety of the medical environment. In this embodiment, a negative pressure pump 5 is installed on one side of the base 1, and a transverse driven shaft 501 is installed on one side of the negative pressure pump 5. Referring to existing technology, the driven shaft 501 is connected to the driving component inside the negative pressure pump 5. A rotatably connected drive shaft 502 is installed at the bottom of the negative pressure pump 5. A pulley is installed on one side of each of the driven shaft 501 and drive shaft 502, and a belt is installed between the two pulleys. A gear is installed on the outer side of the drive shaft 502, and the gear meshes with a rack 3. When the isolation housing 401 moves, it drives the negative pressure pump 5 to move. At this time, the gear is subjected to force, causing the driven shaft 501 and drive shaft 502 to rotate. Specifically, through the combination of pulley and belt drive with gear and rack 3 meshing, the movement of the isolation housing 401 is converted into the power input of the negative pressure pump 5, realizing mechanical linkage. No additional power source is needed to drive the negative pressure pump 5, saving energy and making the device structure more compact. This allows the negative pressure pump 5 to perform suction actions synchronously, improving the continuous treatment of medical waste. The collection housing 402 includes spray holes 40201. A set of spray holes 40201 is opened on one side of the collection housing 402. The spray holes 40201 at the edge position are inclined. A drainage pipe 503 is installed on one side of the negative pressure pump 5. A drainage hole is opened on one side of the isolation housing 401. The upper part of the drainage pipe 503 is installed inside the drainage hole. The drainage hole and the spray holes 40201 are aligned. Specifically, the inclined spray holes 40201 cooperate with the drainage pipe 503 to enable the disinfectant liquid drawn by the negative pressure pump 5 to be sprayed in multiple directions, fully covering the interior of the collection housing 402, disinfecting and reducing dust of medical waste in real time, and improving the sterilization rate of bacteria and the dust removal effect. A storage housing 6 is installed above the negative pressure pump 5. A drainage sleeve is provided at the bottom of the storage housing 6. The drainage sleeve is connected to the upper part of the negative pressure pump 5. A set of stabilizing blocks is provided at the bottom of the storage housing 6. The stabilizing blocks position the storage housing 6 circumferentially and laterally after installation.
[0024] Example 2, based on Example 1, such as Figures 1-6 As shown, a disinfection lamp is installed inside the base 1 according to actual needs, and a control module is required. The control module is electrically connected to the disinfection lamp and the electric motor 201. The disinfection lamp can disinfect the inside of the isolation device 4 in a timed and quantitative manner. The control module realizes automated control to further improve the epidemic prevention capabilities of the equipment, such as setting the disinfection time and linking the start and stop of the electric motor 201 to reduce manual operation.
[0025] The working principle of this embodiment: Place the base 1 on a flat surface in the medical waste disposal area, and fix the electric motor 201 to the bolt mounting hole on one side of the base 1 with bolts. Install the rack 3 in conjunction with the positioning rod 102 so that the support spring can elastically support the rack 3 upwards. Inject an appropriate amount of disinfectant liquid into the inside of the storage housing 6, and ensure that the connection between the drainage sleeve and the negative pressure pump 5 is well sealed. Medical staff step on pedal 405 with their feet, and use the force of their feet to drive the rotating shaft 406 to rotate. The rotating shaft 406 engages with the positioning groove of the docking shaft 407 through the slot, driving the sealing plate 408 to swing synchronously, so that the placement hole of the collection shell 402 is exposed. Discarded needles, syringes and other medical waste are placed into the collection housing 402 through the placement hole. After placement, release the foot pedal 405. Under the action of the torsion spring, the sealing plate 408 resets and seals the placement hole to prevent the spread of germs. When the electric motor 201 is started, the drive shaft of the electric motor 201 drives the threaded rod 202 to rotate in the sliding groove of the base 1. The threaded rod 202 with double thread structure cooperates with the reverse threaded hole of the sliding block 203, so that the two sliding blocks 203 move synchronously in opposite directions. The sliding block 203 engages with the docking block through the docking groove to drive the isolation housing 401 to move. The friction rollers at the bottom of the isolation housing 401 squeeze the friction protrusions 101 to generate vibration. At the same time, the sliding rods 404 and rollers on both sides assist in guiding along the guide groove, so that the isolation housing 401 moves laterally and generates vibration. During this period, the movement of the isolation housing 401 drives the negative pressure pump 5 to move synchronously. The gear of the drive shaft 502 of the negative pressure pump 5 meshes with the rack 3, and drives the driven shaft 501 to rotate through the pulley and belt drive, so that the negative pressure pump 5 starts. The negative pressure pump 5 delivers the disinfectant liquid in the storage shell 6 to the drainage hole of the isolation shell 401 through the drainage pipe 503, and sprays it in multiple directions through the inclined spray hole 40201 of the collection shell 402 to disinfect the internal waste in real time; at the same time, the airflow generated by the negative pressure assists the waste to settle, improving the waste collection effect. After disinfection is completed, the electric motor 201 is turned off, and the isolation housing 401 is reset. The isolation housing 401 is opened periodically, and the collection housing 402 is taken out for centralized treatment of medical waste. After treatment, the collection housing 402 is reinstalled, and the disinfectant liquid in the storage housing 6 is replenished periodically to ensure that the disinfection function is normal.
Claims
1. A laboratory medical waste treatment device, comprising: The base (1), rack (3), and collecting housing (402) are provided. An electric motor (201) is installed on one side of the base (1). A set of bolt mounting holes are provided at the corner of the electric motor (201). The base (1) is characterized by having a movably connected rack (3) installed on one side of the base (1). A set of isolation housings (401) is installed above the base (1). A set of evenly distributed friction protrusions (101) is provided above the base (1). A friction roller is installed at the bottom of the isolation housing (401). The friction roller and the friction protrusions are connected together. The base (1) is aligned with the bottom. A collection housing (402) is installed on the inner side of the isolation housing (401). A cover plate (403) is installed on the top of the isolation housing (401). A stabilizing block is provided at the bottom of the cover plate (403). A negative pressure pump (5) is installed on one side of the base (1). A storage housing (6) is installed above the negative pressure pump (5). A drainage sleeve is provided at the bottom of the storage housing (6). The drainage sleeve is connected to the top of the negative pressure pump (5). A set of stabilizing blocks is provided at the bottom of the storage housing (6).
2. The laboratory medical waste treatment device according to claim 1, characterized in that, A horizontal sliding groove is provided in the middle of the base (1). A threaded rod (202) is installed on the inner side of the sliding groove. One side of the threaded rod (202) is connected to the drive shaft of the electric motor (201). A positioning block is installed on one side of the sliding groove. The other side of the threaded rod (202) is rotatably connected to the positioning block.
3. The laboratory medical waste treatment device according to claim 1, characterized in that, The sliding groove of the base (1) has two sliding blocks (203) installed on the inner side. The electric motor (201), the threaded rod (202), and the sliding block (203) cooperate to form a drive mechanism (2). A threaded hole is opened at the bottom of the sliding block (203), and the spirals of the threaded holes are opposite. The threaded rod (202) passes through the inside of the threaded hole. A docking groove is opened at the top of the sliding block (203). A docking block is provided at the bottom of the isolation shell (401), and the docking block extends into the inside of the docking groove.
4. A laboratory medical waste treatment device according to claim 1, characterized in that, The base (1) has a vertical positioning rod (102) on each side. The positioning rod (102) is a cylindrical structure. A sliding hole corresponding to the positioning rod (102) is opened on each side of the rack (3). The positioning rod (102) passes through the inside of the sliding hole. A support spring is installed on the outside of the positioning rod (102).
5. A laboratory medical waste treatment device according to claim 1, characterized in that, The bottom of the isolation housing (401) has a vertical sliding hole on each side, and a sliding rod (404) is inserted into the sliding hole. A roller is installed at the bottom of the sliding rod (404). A guide groove corresponding to the roller is opened on each side of the base (1), and the roller extends into the inside of the guide groove.
6. A laboratory medical waste treatment device according to claim 1, characterized in that, A transverse driven shaft (501) is installed on one side of the negative pressure pump (5), and a rotating drive shaft (502) is installed at the bottom of the negative pressure pump (5). A pulley is installed on one side of the driven shaft (501) and the drive shaft (502), and a belt is installed between the two pulleys. A gear is installed on the outer side of the drive shaft (502), and the gear meshes with the rack (3).
7. A laboratory medical waste treatment device according to claim 1, characterized in that, A placement hole is provided in the middle of the cover plate (403). A positioning sleeve is provided on one side of the cover plate (403) and the isolation shell (401). A bearing is installed on the inner side of the positioning sleeve. A rotating shaft (406) and a docking shaft (407) are inserted inside the bearing. A set of positioning grooves distributed in a ring array are provided at the bottom of the docking shaft (407). A slot corresponding to the bottom of the docking shaft (407) is provided above the rotating shaft (406). The positioning groove and the slot at the bottom of the docking shaft (407) engage.
8. A laboratory medical waste treatment device according to claim 7, characterized in that, A foot pedal (405) is provided at the bottom of the rotating shaft (406), and a sealing plate (408) is provided above the docking shaft (407). The sealing plate (408) corresponds to the placement hole of the collecting housing (402). A torsion spring is installed between the positioning sleeve of the cover plate (403) and the docking shaft (407). The isolation housing (401), the collecting housing (402), the cover plate (403), the sliding rod (404), the foot pedal (405), the rotating shaft (406), the docking shaft (407), and the sealing plate (408) cooperate with each other to form an isolation device (4).
9. A laboratory medical waste treatment device according to claim 1, characterized in that, The collection housing (402) includes a spray hole (40201). A set of spray holes (40201) is opened on one side of the collection housing (402). A drain pipe (503) is installed on one side of the negative pressure pump (5). A drain hole is opened on one side of the isolation housing (401). The upper part of the drain pipe (503) is installed inside the drain hole. The drain hole and the spray hole (40201) are aligned.