A laboratory garbage can disinfection and sterilization device is applied to

Abstract

The application discloses a kind of laboratory garbage can killing sterilization device, including barrel and barrel cover, the inner wall of barrel is close to the port and is provided with ring shell, the inner wall of ring shell is provided with circumferentially arranged exhaust hole.The laboratory garbage can killing sterilization device provided by the application, by covering the barrel cover, the piston air extraction is carried out, the outside air has the function of supplementing into the garbage can, reduces the emission of dirt in the garbage bag to the air, improves the internal circulation;open the barrel cover, the piston exhaust is carried out, the air originally extracted in the ring shell is quickly sprayed from the obliquely arranged exhaust hole, so that the air blows in the garbage bag, avoids the emission of dirt in the garbage bag to the outside, and the airflow flowing on the port of garbage bag can cover and intercept the dirt in the garbage bag, forms airflow layer and isolates the dirt in the garbage bag, effectively avoids the leakage of dirt in the garbage bag during the opening process of garbage can, increases the safety of laboratory.

Description

Technical Field

[0001] This invention relates to the field of medical laboratory waste bin technology, and more specifically to a disinfection and sterilization device for laboratory waste bins. Background Technology

[0002] Medical laboratories often generate medical waste during experiments such as biological detection, sample processing, and drug comparison. To avoid contaminating the laboratory environment, this medical waste needs to be disposed of in designated laboratory waste bins.

[0003] According to the publication (announcement) number: CN112875104A, the publication (announcement) date: 2021-06-01, a medical waste bin was disclosed.

[0004] According to the public announcement number: CN212197003U, the public announcement date: 2020-12-22, a foot-operated disinfection medical waste bin was disclosed.

[0005] According to the public announcement number: CN216234176U, the public announcement date: 2022-04-08, a semi-automatic bagging and sealing sterilization medical waste bin was disclosed.

[0006] According to the publication (announcement) number: CN111731713A, the publication (announcement) date: 2020-10-02, a medical waste collection device is disclosed.

[0007] In the prior art, including the four patents mentioned above, trash cans are usually equipped with lids to prevent leakage of the trash inside. Foot-operated trash cans are common. However, when throwing experimental waste into the trash can, the lid must be opened. During the process of opening the lid, the trash inside the trash can is exposed to the air. When there are some pollutants in the trash that can be easily dispersed into the air, the laboratory environment is easily polluted. This makes it easy for the experimenters to be affected by environmental factors when conducting experiments, thus reducing the accuracy of the experimental results. Summary of the Invention

[0008] The purpose of this invention is to provide a sterilization and disinfection device for laboratory trash cans, which solves the problem of leakage of dirt inside the trash cans during the opening process.

[0009] To achieve the above objectives, the present invention provides the following technical solution:

[0010] A sterilization and disinfection device for laboratory trash cans includes a can body and a can lid. An annular shell is provided on the inner wall of the can body near the port. A circumferential array of exhaust holes is provided on the inner wall of the annular shell, and the exhaust holes face the inside of the fixed trash bag.

[0011] It also includes a piston mechanism comprising a compression stroke and a suction stroke, the two strokes being coordinated with the movement of the bucket lid as follows:

[0012] During the compression stroke, when the lid flips open, air is released into the garbage bag;

[0013] During the suction stroke, when the lid flips to close, air is sucked out of the garbage bag.

[0014] Preferably, the barrel lid is provided with an arc-shaped component, and the end of the arc-shaped component during the compression stroke is used to push against the stopper plate provided inside the ring shell.

[0015] Preferably, the barrel body is provided with a liquid bladder, the liquid bladder is connected to a spray nozzle on the barrel lid, and the arc apex of the arc member during the suction stroke is used to squeeze the liquid bladder.

[0016] Preferably, a ring is movably disposed inside the bin, and the ring cooperates with a ring shell to clamp the port of the garbage bag.

[0017] Preferably, the ring is movably provided with two clamping rods arranged in a circular array, and the clamping rods are provided with clamps for holding garbage bags.

[0018] Preferably, the barrel body is provided with interconnected inclined slides, transfer tracks, and spiral tracks, and the clamping rod is provided with a sliding end that is slidably assembled, and is used for the following two workstations:

[0019] At the first station, the sliding end slides along the inclined slide in the transfer channel to make the clamping rod close the garbage bag;

[0020] In the second station, the sliding end slides from the transfer channel into the spiral channel to tighten the garbage bag with the clamp.

[0021] Preferably, the annular shell is provided with a transfer cavity, which is divided into a liquid inlet, a liquid outlet and a liquid drain according to its function;

[0022] The sliding end slides within the inclined slide rail and moves in a piston-like motion, thus connecting the liquid bladder to the liquid inlet.

[0023] During the compression stroke, the plug plate connects the liquid outlet to the vent.

[0024] Preferably, the chuck in the second working state is engaged with the vent hole.

[0025] Preferably, the transfer channel is provided with a fan groove at its end, and the inclined slide is connected to the drain port and the fan groove respectively.

[0026] Preferably, the spiral track is provided with a shallow track, and the sliding end slides into the shallow track to bring the two clamps together and make the garbage bag and the ring move synchronously.

[0027] In the above technical solution, the present invention provides a sterilization device for laboratory trash cans, which has the following beneficial effects: During the process of closing the lid, a piston pumping operation is performed, allowing air between the trash bag port and the lid to enter the ring shell through the exhaust hole. This allows outside air to replenish the trash can, effectively reducing the release of dirt from the trash bag into the air and improving internal circulation. Simultaneously, during the process of opening the lid, a piston exhaust operation is performed. At this time, the air previously extracted into the ring shell is compressed, and the gas is quickly ejected from multiple oblique exhaust holes, causing air to blow into the trash bag. This prevents dirt from the trash bag from escaping to the outside of the open trash can. Furthermore, the airflow flowing at the trash bag port can cover and intercept the dirt in the trash bag, forming an airflow layer that isolates the dirt in the trash bag. This effectively prevents the leakage of dirt from the trash bag during the opening of the trash can, increases the safety of the laboratory operating environment, and improves the accuracy of experimental results. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0029] Figure 1 This is a schematic diagram of the trash can lid opening structure provided in an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the left side structure of the trash can with the lid open, provided in an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the front cross-sectional structure of the barrel provided in an embodiment of the present invention;

[0032] Figure 4 This is a schematic diagram of the side cross-sectional structure of the barrel body and barrel lid provided in an embodiment of the present invention;

[0033] Figure 5 for Figure 4 A magnified structural diagram at point A;

[0034] Figure 6 This is a schematic diagram of the right side cross-section of the barrel body and barrel lid provided in an embodiment of the present invention;

[0035] Figure 7 for Figure 6 A magnified structural diagram at point B;

[0036] Figure 8 This is a schematic cross-sectional view of the ring portion provided in an embodiment of the present invention;

[0037] Figure 9 This is a schematic diagram of the sliding fit structure of the sliding end and the tail of the spiral track provided in an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Barrel body; 11. Barrel lid; 2. Ring shell; 20. Vent hole; 21. Shell tail; 22. Plug plate; 23. Arc component; 24. Liquid box; 241. Liquid bladder; 242. Drain head; 243. Liquid channel; 244. Spray nozzle; 25. Transfer chamber; 251. Liquid inlet; 252. Liquid outlet; 253. Drain outlet; 3. Ring ring; 31. Clamping rod; 311. Clamping head; 32. Rod head; 320. Rod groove; 321. Sliding end; 322. Sliding block; 323. Inclined slide; 324. Transfer channel; 325. Fan groove; 326. Spiral channel; 3261. Shallow channel; 327. Elastic sheet; 33. Pull rod; 331. Pull end. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] like Figure 1-9 As shown, a sterilization device for laboratory trash cans includes a can body 1 and a can lid 11. An annular shell 2 is provided on the inner wall of the can body 1 near the port. A circumferential array of exhaust holes 20 is provided on the inner wall of the annular shell 2, and the exhaust holes 20 face the inside of the fixed trash bag.

[0042] It also includes a piston mechanism, which comprises a compression stroke and a suction stroke, and the two strokes are coordinated with the movement of the lid 11 as follows:

[0043] During the compression stroke, when the lid 11 is flipped open, air is expelled into the garbage bag;

[0044] During the suction stroke, when the lid 11 is flipped closed, air is sucked out of the garbage bag.

[0045] Specifically, the bin body 1 is a foot-operated trash can, the lid 11 is hinged to the port of the bin body 1, and the foot pedal that drives the lid 11 to open and close is existing technology and will not be described in detail here; the ring shell 2 is fixedly installed near the port of the bin body 1, and the vent 20 is located on the inner ring of the ring shell 2.

[0046] Furthermore, the angle between the exhaust port 20 and the tangent of the annular shell 2 is specifically 30°, and the port of the exhaust port 20 is tilted downward at a 20° angle. This is to enable the multiple sets of exhaust ports 20 to have a larger gas coverage area during the exhaust process, and to blow the air discharged from all the exhaust ports 20 into the garbage bag, thereby improving the airflow isolation effect at the port of the garbage bag, greatly reducing the leakage of dirt from the garbage bag into the laboratory environment, and improving the safety of the laboratory environment.

[0047] Furthermore, a medical waste bag is fixed inside the container 1 to hold waste and sludge generated in the laboratory. This is existing technology and will not be described in detail here.

[0048] In the above embodiments, the process of piston exhaust and intake at the exhaust port 20 can be performed by an air pump, an electric push rod squeezing the piston plate to drive exhaust and intake, or any existing mechanism or component known to those skilled in the art.

[0049] During the process of closing the lid 11, a piston pumping operation is performed, allowing air between the garbage bag port and the lid 11 to enter the annular shell 2 through the exhaust port 20. This allows outside air to replenish the garbage can, effectively reducing the release of dirt from the garbage bag into the air and improving internal circulation. Simultaneously, during the process of opening the lid 11, a piston venting operation is performed. At this time, the air previously extracted into the annular shell 2 is compressed, and the gas is quickly ejected from multiple angled exhaust ports 20, causing air to blow into the garbage bag. This prevents dirt from the garbage bag from escaping to the outside of the open garbage can. Furthermore, the airflow flowing at the garbage bag port can cover and intercept the dirt in the garbage bag, forming an airflow layer that isolates the dirt in the garbage bag. This effectively prevents the leakage of dirt from the garbage bag during the opening of the garbage can, increases the safety of the laboratory operating environment, and improves the accuracy of experimental results.

[0050] As a further embodiment of the present invention, the barrel lid 11 is provided with an arc member 23, and the end of the arc member 23 during the compression stroke is used to push against the plug plate 22 provided inside the ring shell 2.

[0051] Specifically, the arc-shaped component 23 is symmetrically fixedly installed near the hinge position of the bucket lid 11 so that the arc-shaped component 23 does not interfere with the foot pedal lever of the bucket body 1 during operation. Furthermore, the bucket body 1 provides a protective shell at the hinge position of the bucket lid 11 to provide the necessary working space for the foot pedal linkage (e.g., ...). Figure 1 and Figure 4 As shown in the figure, this is existing technology and will not be described in detail here; while the arc-shaped component 23 is located at the port of the protective shell, so that the arc component 23 can be directly driven by the flipped bucket lid 11, which is labor-saving, direct and convenient to operate.

[0052] Furthermore, a rubber ring is fixedly fitted onto the stopper plate 22 to provide the sealing effect required by the piston mechanism. A shell tail 21 is fixedly installed on the outer ring of the bin body 1, communicating with the annular shell 2 and located within the protective shell. The stopper plate 22 slides between the annular shell 2 and the shell tail 21, allowing the stopper plate 22 to have a greater gas extraction / discharge capacity during piston movement. This ensures that the multiple exhaust holes 20 can maintain isolation from the airflow above the garbage bag when discharging gas, increasing the efficiency of preventing leakage of contaminants from the garbage bag during opening of the garbage bin (e.g., ...). Figure 2 and Figure 7 (As shown).

[0053] Furthermore, a symmetrically arranged support plate is fixedly installed at the end of the shell 21, and a tension spring is fixedly installed between the support plate and the plug plate 22.

[0054] During the opening of the lid 11, the flipped lid 11 abuts the end of the arc member 23 against the stopper plate 22, and the arc member 23 pushes against the stopper plate 22 to compress the gas, so that the gas in the ring shell 2 is discharged from multiple oblique exhaust holes 20, which facilitates the air blowing into the garbage bag and prevents the dirt in the garbage bag from escaping to the outside of the opened garbage can. At the same time, the airflow flowing on the port of the garbage bag can cover and intercept the dirt in the garbage bag, forming an airflow layer to isolate the dirt in the garbage bag.

[0055] Secondly, during the closing process of the lid 11, the arc member 23 moves away from the stopper plate 22, causing the stopper plate 22 to draw air from between the garbage bag port and the lid 11 through multiple exhaust holes 20 under the restoring deformation of the tension spring, and send it into the ring shell 2. This allows the outside air to replenish the garbage can, effectively reducing the release of dirt from the garbage bag into the air, improving internal circulation, and thus achieving the purpose of complete airflow circulation of the ring shell 2. The operation is convenient, allowing the airflow to draw in outside air during the replenishment process, and forming a barrier against dirt during the exhaust process, increasing the anti-leakage effect of the garbage can during the opening and placement of garbage.

[0056] In the above embodiments, the driving source for the lateral movement of the stopper plate 22 can be an electric push rod, or a motor driving a screw to push in conjunction with a movable block, or any existing mechanism or component known to those skilled in the art.

[0057] As another embodiment of the present invention, a liquid bladder 241 is provided on the barrel body 1. The liquid bladder 241 is connected to the liquid spraying port 244 opened on the barrel cover 11. The arc top of the arc member 23 under the air suction stroke is used to squeeze the liquid bladder 241.

[0058] Specifically, a liquid tank 24 is fixedly installed on the protective shell. The liquid tank 24 is provided with a liquid injection port, which is existing technology and will not be described in detail here. The liquid stored in the liquid tank 24 can be an alcohol-based disinfectant, an iodine-containing disinfectant, or a quaternary ammonium salt disinfectant, which is existing technology and will not be described in detail here. This facilitates the disinfection of the garbage in the garbage bag by the disinfectant.

[0059] Furthermore, the liquid bladder 241 and the liquid box 24 are connected, and the lid 11 is provided with a liquid channel 243 that is connected to the spray nozzle 244. The lid 11 is hinged to maintain the connection (the hinged connection is prior art and will not be described in detail here), so that the liquid bladder 241 is connected to the liquid channel 243. During the compression process, the liquid bladder 241 replenishes the liquid in the liquid box 24 into the liquid channel 243, and the liquid channel 243 sprays the liquid out through the atomizing nozzle on the spray nozzle 244 (which is prior art and will not be described in detail here).

[0060] Furthermore, the liquid bladder 241 is made of corrosion-resistant rubber, which is existing technology and will not be described in detail here.

[0061] During the closing process of the lid 11, the arc member 23 moves away from the stopper plate 22. At this time, the arc apex of the arc member 23 squeezes the expanded liquid bladder 241, causing the liquid bladder 241 to send the disinfectant through the liquid channel 243 into the spray nozzle 244. The spray nozzle 244 then sprays the disinfectant into the garbage bag in an atomized manner, thereby disinfecting the garbage in the garbage bag, reducing the risk of waste floating and leaking from the garbage bag, and increasing the safety and leak-proof effect of the garbage can during operation.

[0062] Secondly, when the sprayed atomized disinfectant is suspended at the port of the garbage bag, and during the closing of the lid 11, the stopper plate 22, under the restoring deformation of the tension spring, draws air from the vent 20 between the garbage bag port and the lid 11, and simultaneously draws some of the suspended disinfectant into the ring shell 2. When the lid 11 is opened, the stopper plate 22 compresses and squeezes out the gas in the ring shell 2, and some of the disinfectant in the ring shell 2 re-enters the garbage bag port. This allows the airflow to isolate the garbage bag port while simultaneously containing disinfectant, enabling the garbage can to not only isolate dirt from the airflow during the opening process, but also to be sterilized by the disinfectant suspended in the airflow. This further improves the anti-leakage effect of the garbage can when placing garbage and increases the safety of the experimenters.

[0063] In the above embodiments, the power source for the liquid bladder 241 to draw the detoxifying agent can be a liquid pump, or a motor driving a gear to mesh with a rack to push a piston plate to draw the detoxifying agent, or any existing mechanism or component known to those skilled in the art.

[0064] As a further embodiment of the present invention, a ring 3 is movably provided inside the bin 1, and the ring 3 cooperates with the ring shell 2 to clamp the port of the garbage bag.

[0065] Specifically, symmetrically arranged vertical holes are provided on the side wall of the barrel body 1. A pull rod 33 is slidably installed in the vertical hole. The pull rod 33 is "L"-shaped, and a sliding rod is fixedly installed in the vertical hole, so that one end of the pull rod 33 slides on the sliding rod to provide guidance and limitation for the longitudinal sliding of the pull rod 33 (e.g., Figure 2 and Figure 3(as shown); a tension spring is fixedly installed between the pull rod 33 and the vertical hole, and the tension spring is arranged in a ring on the outside of the slide rod.

[0066] Furthermore, a pull end 331 is fixedly installed on the upper end of the pull rod 33, and the pull end 331 has a "T" shaped cross section. The upper end of the pull end 331 slides in the "T" shaped ring channel opened at the bottom of the ring 3, so that the pull rod 33 does not affect the rotation of the ring 3, and the tension spring makes the ring 3 abut against the bottom of the ring shell 2 in the default state.

[0067] Pulling down lever 33 moves ring 3 away from ring shell 2, causing the tension spring to deform. At this point, the garbage bag is opened and placed in bin 1, with the bag opening positioned between ring shell 2 and ring 3. Then, releasing lever 33 allows the tension spring to return to its original deformation, allowing ring 3 to work with ring shell 2 to clamp and fix the bag opening. This ensures the garbage bag is securely placed in bin 1, facilitating garbage collection. It also prevents garbage from falling onto the bag opening, which would otherwise be outside the bin 1. This avoids the garbage bag opening being exposed to the air, preventing contamination of the experimental environment and increasing the safety of personnel.

[0068] In the above embodiments, the driving source for the longitudinal movement of ring 3 can be an electric push rod, or a motor driving a screw to push in conjunction with a movable block, or any existing mechanism or component known to those skilled in the art.

[0069] As a further embodiment of the present invention, two clamping rods 31 arranged in a circular array are movably disposed on the ring 3, and clamping heads 311 for clamping garbage bags are provided on the clamping rods 31.

[0070] Specifically, the ring 3 has two circumferentially arranged rod grooves 320. A rod head 32 is fixedly installed at the end of the clamping rod 31. Symmetrically arranged slide rails are provided on the inner wall of the rod grooves 320. A slider 322 is slidably arranged in the slide rails, and a tension spring is fixedly installed between the slider 322 and the slide rail. The rod head 32 rotates circumferentially on the slider 322, and a torsion spring (existing technology, not described in detail here) is provided at the rotation position, so that the rod head 32 can slide and rotate in the rod grooves 320. This allows the clamping rod 31 to have dual functions simultaneously, increasing the applicability of the clamping rod 31 (e.g., Figure 8 (As shown).

[0071] Furthermore, the clamp 311 has an arc-shaped cross-section, which is formed by bending the end of the clamp rod 31, and the openings of the two clamps 311 face one point, namely the center of the garbage bag, which facilitates the closing of the garbage bag.

[0072] The bag opening is clamped and fixed by the ring 3 and the ring shell 2, so that the garbage bag is stably placed in the bin 1. The two circumferentially arranged clamping rods 31 are located in the inner circle of the ring 3, so that when the garbage bag is placed in the bin 1, the garbage bag body can be supported and limited by the two clamps 311, so that the garbage bag opening can be additionally supported and fixed, increasing the stability of the garbage bag when working in the garbage bin, preventing the garbage bag from wrinkling and tipping over in the garbage bin, thereby effectively preventing the dirt in the garbage bag from leaking into the garbage bin, and increasing the anti-pollution effect of the garbage bin when it is working.

[0073] As a further embodiment of the present invention, the barrel 1 is provided with a connected inclined slide 323, a transfer track 324 and a spiral track 326, and the clamping rod 31 is provided with a sliding end 321 that is slidably assembled, and is used for the following two workstations:

[0074] At the first station, the sliding end 321 slides from the inclined slide 323 into the transfer channel 324 to make the clamping rod 31 close the garbage bag.

[0075] In the second station, the sliding end 321 slides from the transfer channel 324 into the spiral channel 326 to tighten the garbage bag with the clamp 311.

[0076] Specifically, the inclined slide 323 is arranged longitudinally, and the angle between the port of the inclined slide 323 and the tangent of the inner wall of the barrel 1 is 60° (e.g., Figure 3 and Figure 5 As shown), when the two clamping rods 31 slide longitudinally in the inclined slide 323, the two clamps 311 are kept far apart, and the ends of the clamps 311 abut against the inner ring of the ring 3, so that the ring 3 will not press and accumulate the garbage bag when it slides longitudinally.

[0077] Furthermore, the head of the spiral channel 326 is connected to the transfer channel 324, while the tail is connected to the upper end of the inclined slide 323 to provide the loop 3 for circulation. The sliding end 321 is located at the upper end of the inclined slide 323 in the default state. An elastic piece 327 made of elastic metal sheet is provided at the intersection of the spiral channel 326 and the inclined slide 323. The elastic piece 327 is fixedly installed at the intersection of the spiral channel 326 and extends into the inclined slide 323 (but does not interfere with the longitudinal sliding of the sliding end 321 in the inclined slide 323). When the sliding end 321 slides in the spiral channel 326, it is guided by the elastic piece 327 and can quickly enter the next spiral channel 326 without embedding in the inclined slide 323 and being unable to spiral upward. This makes the clamp 311 more smooth and stable in the process of closing the garbage bag, avoiding jamming and increasing the stability of the garbage bag closure.

[0078] Furthermore, the sliding end 321 is fixedly installed on the rod head 32, and symmetrically arranged elastic rubber diaphragm flaps are fixedly installed at the port of the inclined slide 323, so that the two elastic rubber diaphragm flaps of the sliding end 321 at the sliding position of the inclined slide 323 are squeezed and kept away from each other, while the two elastic rubber diaphragm flaps at the non-sliding position of the sliding end 321 remain in contact and closed (this is prior art and will not be described in detail here). When the sliding end 321 slides in the inclined slide 323, the torsion spring on the rod head 32 remains in a deformed and stored state.

[0079] When the garbage bag is 3 / 4 full, in the first working state, pull down the lever 33 to drive the ring 3 downward, so that the sliding end 321 slides longitudinally in the inclined slide 323 and reaches the transfer channel 324. At this time, the two clamping rods 31, under the restoring deformation of the torsion spring, bring the two clamps 311 together and gather and close the garbage bag at the 3 / 4 position. This forms a funnel shape between the garbage area below 3 / 4 of the garbage bag and the empty bag area above 1 / 4 of the garbage bag, which can separate the garbage in the garbage bag, thereby effectively avoiding the leakage of dirt during the garbage bag replacement process and increasing the safety of the garbage bag replacement process.

[0080] Secondly, in the second working state, when the sliding end 321 is in the transfer channel 324, the ring 3 moves down to the lowest position, and the tension spring on the pull rod 33 deforms and stores force. At this time, the pull rod 33 is released to allow the tension spring to recover its deformation and drive the ring 3 to move up, and the sliding end 321 enters obliquely upward from the head of the spiral channel 326. Under the action of the elastic plate 327, the sliding end 321 slides smoothly in the spiral channel 326. At the same time, the clamp 311 twists the top of the garbage bag after the garbage bag is closed, so that more than 1 / 4 of the garbage bag is twisted and tied. Thus, under the action of the twisted spiral bag head, the garbage in the garbage bag is blocked, avoiding the leakage of dirt during the garbage bag replacement process, improving the safety of the experimental personnel during the garbage bag replacement process, and improving the safety of the laboratory environment.

[0081] Furthermore, when the sliding end 321 enters the inclined slide 323 again from the spiral channel 326, the two clamping rods 31 remain far apart again, so that the garbage bag with the twisted head can be easily taken out of the bin 1. This makes it more convenient for the experimenters to take out the sealed garbage bag, reduces the burden caused by the experimenters changing the garbage bag, improves the replacement efficiency, reduces the leakage of dirt caused by the replacement time, and improves the safety of the laboratory.

[0082] In the above embodiments, the driving source for the spiral upward movement of ring 3 can be a motor working with an electric push rod, or a motor driving a screw working with a movable block to push, or any existing mechanism or component known to those skilled in the art.

[0083] As another embodiment of the present invention, a transfer cavity 25 is provided on the annular shell 2, and the transfer cavity 25 is divided into a liquid inlet 251, a liquid outlet 252 and a liquid drain 253 according to its function.

[0084] The sliding end 321 slides within the inclined slide rail 323 and moves in a piston-like motion, connecting the liquid bladder 241 to the liquid inlet 251.

[0085] During the compression stroke, the plug plate 22 connects the liquid outlet 252 to the exhaust port 20.

[0086] Specifically, a drain head 242 is connected to the liquid bladder 241, and the drain head 242 is connected to the liquid inlet 251 (which functions the same as the inflation valve, connecting to replenish liquid; this is existing technology and will not be described in detail here). Figure 5 and Figure 7 As shown), and the drain head 242 keeps the liquid bladder 241 closed when it is not connected to the inlet 251.

[0087] Furthermore, the inlet 251 and outlet 252 are located on both sides of the stopper plate 22 so that the stopper plate 22 can extract the outlet 252 when the piston moves. And one-way elastic diaphragm flaps (which are existing technology and similar to one-way valves, and will not be described in detail here) are fixedly installed on both the inlet 251 and outlet 252 ports.

[0088] Furthermore, the deflection angle of the lid 11 during normal opening and closing is 0~60°. However, during the replacement of the connecting belt, the lid 11 needs to be rotated to an angle of 80° so that the liquid bladder 241 can enter the tail 21 for docking. The operation is controlled by a foot pedal, which is existing technology and will not be described in detail here.

[0089] With the lid 11 flipped beyond the normal opening angle for placing garbage, the liquid bladder 241 enters the tail 21 of the shell, and the drain head 242 and the inlet 251 are connected. At this time, the downward sliding end 321 acts as a piston in the inclined slide 323, so that the disinfectant in the liquid bladder 241 is drawn into the inlet 251 through the drain head 242. Simultaneously, as the stopper plate 22 continues to work under the push of the arc member 23, a portion of the disinfectant that has entered the middle of the transfer chamber 25 is discharged from the outlet 252 and replenished into the ring shell 2. At this time, as the stopper plate 22 compresses the gas in the ring shell 2 and discharges, this portion of disinfectant is quickly sprayed out from multiple exhaust holes 20, so that a large amount of disinfectant (disinfectant capacity is 4- The 8ml (larger than the suspended disinfectant capacity (0.1-0.2ml) stored during the exhaust process from the vent 20) can be directly blown towards the opening of the garbage bag to be sealed. This allows the disinfectant to flow at the opening of the garbage bag during replacement. At the same time, because the opening is no longer held in place by the ring 3, the collapsed part of the opening allows the disinfectant to flow out and freely flow to the outside of the garbage bag. This ensures that when the experimenter is changing the garbage bag, the gloves and the garbage bag are covered with disinfectant, thus achieving the purpose of disinfecting both the garbage bag and hands when handling the garbage bag. This increases the safety of the garbage bag replacement process and avoids leakage of dirt inside and outside the garbage bag.

[0090] Secondly, during the process of drawing out the disinfectant, the downward sliding end 321 allows the disinfectant to enter the inclined slide 323 through the drain port 253, so that another part of the disinfectant is stored in the inclined slide 323, and the disinfectant is used to prepare for disinfection of the inner wall of the tank 1, thereby increasing the scope of use of the disinfectant and improving the utilization rate of the disinfectant.

[0091] In the above embodiments, the pumping power source for the inclined slide 323 can be a liquid pump.

[0092] As another embodiment of the present invention, the chuck 311 in the second working state cooperates with the exhaust hole 20.

[0093] By twisting the top of the garbage bag after it has been sealed by clamp 311, the area above 1 / 4 of the garbage bag is twisted into a braided shape. At this time, the disinfectant sprayed from the vent 20 flows downward at the opening of the garbage bag and flows towards the sealed position. As the two clamps 311 move upward in a spiral motion, they apply the disinfectant flowing on the area above 1 / 4 of the garbage bag, so that the disinfectant can completely cover the braided bag head. This allows the experimenter to be effectively sterilized by the disinfectant when handling the garbage bag. At the same time, the disinfectant that completely covers the braided bag head can effectively isolate bacteria and dirt on the surface of the garbage bag, increase the sterilization effect during the garbage bag replacement process, prevent the garbage bag from leaking into the air, and increase the safety of the laboratory environment.

[0094] As a further embodiment of the present invention, the transfer channel 324 is provided with a fan groove 325 at its end, and the inclined slide 323 is connected to the drain port 253 and the fan groove 325 respectively.

[0095] Specifically, the fan groove 325 is scallop-shaped, and the depth of the fan groove 325 gradually decreases from the top corner to the arc edge, and is flush with the inner wall of the barrel 1, so that the disinfectant flowing from the transfer channel 324 into the fan groove 325 can flow completely to the inner wall of the barrel 1.

[0096] During the process of drawing out the disinfectant via the downward sliding end 321, the disinfectant enters the inclined slide 323 through the drain port 253, allowing another portion of the disinfectant to be stored in the inclined slide 323. This disinfectant then flows from the inclined slide 323 into the transfer channel 324, allowing the disinfectant overflowing in the transfer channel 324 to flow from the fan groove 325 onto the inner wall of the bin 1. This disinfects the inner wall of the trash can, reducing the number of times the trash can needs to be repeatedly disinfected, thus improving the working efficiency of the trash can. At the same time, during the removal of the trash bag from the trash can, the disinfectant flowing inside the trash can reduces the entry of pollutants from the outside air into the trash can, improving the safety of the trash can during operation.

[0097] As a further embodiment of the present invention, a shallow channel 3261 is provided on the spiral channel 326, and the sliding end 321 and the shallow channel 3261 are slidably engaged to bring the two clamps 311 closer together and to make the garbage bag and the ring 3 move synchronously.

[0098] Specifically, shallow passage 3261 is located at the end of spiral passage 326, and shallow passage 3261 is a shallower version of spiral passage 326, maintaining two or more complete spiral turns (e.g. Figure 5 , Figure 8 and Figure 9 (as shown); the ring 3, guided by the two sliding ends 321, will not deflect or tilt, and will keep the ring 3 moving smoothly longitudinally and spiraling upward.

[0099] As the ring 3 spirals upward, the sliding end 321 slides from the spiral channel 326 into the shallow channel 3261, causing the clamps 311 on the two clamping rods 31 to stagger and approach each other, clamping and fixing the twisted bag head. At this time, the ring 3 continues to spiral upward for two or more turns simultaneously, driving the garbage bag to rotate, so that the 3 / 4 area of ​​the garbage bag at the bottom rotates into the bin 1. This allows the disinfectant flowing from the fan groove 325 to the inner wall of the bin 1 to be between the garbage bag and the inner wall of the bin 1, so that the rotating garbage bag flows onto the inner wall of the bin 1. The disinfectant is applied to the garbage bag, which further disinfects the inner wall of the bin 1. Both the outer side of the garbage bag and the inner wall of the bin 1 are simultaneously covered with disinfectant, achieving double disinfection and sterilization when the garbage bag is removed from the garbage bin. This effectively reduces the entry of external dirt into the garbage bin and prevents it from adhering to the inside. It also prevents dirt from the garbage bin from contaminating the outer side of the garbage bag when it is put back in, thus effectively improving the safety of the garbage bag during replacement and preventing leakage of dirt from both inside and outside the garbage bag.

[0100] In the above embodiments, the driving source for applying disinfectant in the barrel 1 can be an electric push rod in conjunction with a brush, or a motor driving a screw in conjunction with a movable block to push and pull the brush, or any existing mechanism or component known to those skilled in the art.

[0101] Working principle: Pulling down the lever 33 moves the ring 3 away from the ring shell 2, causing the tension spring to deform. At this time, the garbage bag is opened and placed in the bin 1, with the bag opening placed between the ring shell 2 and the ring 3. Then, the lever 33 is released to allow the tension spring to return to its original deformation, so that the ring 3 cooperates with the ring shell 2 to clamp and fix the bag opening, thus ensuring that the garbage bag is stably placed in the bin 1, facilitating the garbage bag's garbage collection function.

[0102] Secondly, during the opening of the lid 11, the flipped lid 11 abuts the end of the arc member 23 against the stopper plate 22, and the arc member 23 pushes against the stopper plate 22 to compress the gas, so that the gas in the ring shell 2 is discharged from multiple oblique exhaust holes 20, which facilitates the air blowing into the garbage bag and prevents the dirt in the garbage bag from escaping to the outside of the opened garbage can. At the same time, the airflow flowing on the port of the garbage bag can cover and intercept the dirt in the garbage bag, forming an airflow layer to isolate the dirt in the garbage bag.

[0103] Furthermore, during the closing process of the lid 11, the arc member 23 moves away from the stopper plate 22, allowing the stopper plate 22 to draw air from between the garbage bag port and the lid 11 through multiple exhaust holes 20 under the restoring deformation of the tension spring, and send it into the ring shell 2, so that the outside air has the function of replenishing the garbage can, effectively reducing the release of dirt from the garbage bag into the air and improving the internal circulation.

[0104] Furthermore, during the closing process of the lid 11, the arc member 23 moves away from the stopper plate 22. At this time, the arc apex of the arc member 23 compresses the expanded liquid bladder 241, causing the liquid bladder 241 to send the disinfectant through the liquid channel 243 into the spray nozzle 244. The spray nozzle 244 then sprays the disinfectant into the garbage bag in an atomized manner, achieving disinfection of the garbage bag with the disinfectant, reducing the risk of waste floating and leaking from the garbage bag. While the sprayed atomized disinfectant is suspended at the opening of the garbage bag, the stopper plate 22 returns to its original position during the closing process of the lid 11. Under the action of deformation, air between the garbage bag port and the lid 11 is drawn from the vent 20, and at the same time, some of the suspended disinfectant is drawn into the ring shell 2. When the lid 11 is opened, the stopper 22 compresses and squeezes out the gas in the ring shell 2, and some of the disinfectant in the ring shell 2 re-enters the garbage bag port. This means that the airflow isolates the garbage bag port while the disinfectant is present, so that the garbage can not only isolate the dirt from the airflow during the opening process, but also sterilizes the garbage can with the disinfectant suspended in the airflow.

[0105] Furthermore, when the garbage bag is 3 / 4 full, in the first working state, the pull rod 33 is pulled down to drive the ring 3 downward, so that the sliding end 321 slides longitudinally in the inclined slide 323 and reaches the transfer channel 324. At this time, the two clamping rods 31, under the restoring deformation of the torsion spring, bring the two clamps 311 together and gather and close the garbage bag at the 3 / 4 position, so that the garbage area below 3 / 4 of the garbage bag and the empty bag area above 1 / 4 of the garbage bag form a funnel shape, so that the garbage in the garbage bag can be separated. In the second working state, when the sliding end 321 is in the transfer channel 324, the ring 3 moves down to the lowest position, and the tension spring on the pull rod 33 deforms and stores force. At this time, the pull rod 33 is released to allow the tension spring to restore its deformation and drive the ring 3. The slide end 321 moves upward and enters obliquely upward from the head of the spiral channel 326, allowing it to slide smoothly within the spiral channel 326 under the action of the elastic plate 327. Simultaneously, the clamp 311 twists the top of the garbage bag after it is closed, causing more than 1 / 4 of the garbage bag to be twisted into a knot. This twisted spiral shape of the bag head effectively blocks the garbage inside the bag. When the slide end 321 re-enters the oblique slide channel 323 from the spiral channel 326, the two clamps 31 move away from each other again, allowing the twisted garbage bag to be easily removed from the bin 1. This makes it easier for the experimenter to retrieve the tied garbage bag, reducing the burden on the experimenter when changing garbage bags and improving the efficiency of bag replacement.

[0106] Finally, with the lid 11 flipped beyond the normal angle for placing garbage, the liquid bladder 241 enters the tail 21 of the shell, and the drain head 242 and the inlet 251 are connected. At this time, the downward sliding end 321 operates as a piston in the inclined slide 323, allowing the disinfectant in the liquid bladder 241 to be drawn into the inlet 251 through the drain head 242. Simultaneously, as the stopper plate 22 continues to work under the push of the arc member 23, a portion of the disinfectant that has entered the middle of the transfer chamber 25 is discharged from the outlet 252 and replenished into the ring shell 2. At this time, as the stopper plate 22 compresses the gas in the ring shell 2 and discharges, this portion of disinfectant is quickly sprayed out from multiple exhaust holes 20, so that a large amount of disinfectant can be directly blown towards the opening of the garbage bag to be closed, so that disinfectant can flow at the opening of the garbage bag during the replacement process. The opening is no longer held in place by the ring 3, allowing the disinfectant to flow out from the collapsed part of the bag opening and freely flow to the outside of the garbage bag. This allows the gloves worn by the experimenter to be covered with disinfectant when changing the garbage bag, thus achieving the purpose of disinfecting both the garbage bag and the hands during the process of handling the garbage bag. Furthermore, the clamp 311 twists the top of the garbage bag after it is closed, making the upper 1 / 4 of the garbage bag twisted into a braided shape. At this time, the disinfectant sprayed from the vent 20 flows downward at the opening of the garbage bag and flows towards the closed position of the garbage bag. As the two clamps 311 move upward in a spiral motion, they apply the disinfectant flowing in the upper 1 / 4 area of ​​the garbage bag, so that the disinfectant can completely cover the twisted bag head, allowing the experimenter to be effectively sterilized by the disinfectant when handling the garbage bag.

[0107] Furthermore, during the process of drawing and dispensing disinfectant, the downward-moving sliding end 321 allows the disinfectant to enter the inclined slide 323 through the drain port 253, thus storing another portion of the disinfectant in the inclined slide 323. This disinfectant then flows from the inclined slide 323 into the transfer channel 324, allowing the overflowing disinfectant in the transfer channel 324 to flow from the fan groove 325 onto the inner wall of the bin 1, thereby disinfecting the inner wall of the garbage bin. Simultaneously, as the ring 3 spirals upward, the sliding end 321 slides from the spiral channel 326 into the shallow channel 3261, causing the clamps 311 on the two clamping rods 31 to stagger and approach each other, and tightening the clamps until they become stiff. The flower-shaped bag head is clamped and fixed. At this time, the garbage bag is driven to rotate simultaneously by two or more spiraling rings 3. This causes the 3 / 4 area of ​​the garbage bag at the bottom to rotate in the bin 1. This allows the disinfectant flowing from the fan groove 325 to the inner wall of the bin 1 to be between the garbage bag and the inner wall of the bin 1. The rotating garbage bag coats the disinfectant flowing on the inner wall of the bin 1, thereby increasing the disinfection effect of the garbage bag on the inner wall of the bin 1. The outer side of the garbage bag and the inner wall of the bin 1 can be covered and coated with disinfectant at the same time, so that the garbage bag can provide double disinfection and sterilization when it is taken out of the garbage bin.

[0108] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sterilization and disinfection device for laboratory trash cans, comprising a can body (1) and a can lid (11), characterized in that, The inner wall of the barrel (1) near the port is provided with an annular shell (2), and the inner wall of the annular shell (2) is provided with vent holes (20) arranged in a circular array, and the vent holes (20) face the inside of the fixed garbage bag. It also includes a piston mechanism comprising a compression stroke and a suction stroke, and the two strokes are coordinated with the movement of the barrel lid (11) as follows: During the compression stroke, when the lid (11) is flipped open, air is released into the garbage bag; During the suction stroke, when the lid (11) is flipped closed, air is sucked out of the garbage bag; An arc member (23) is provided on the barrel lid (11), and the end of the arc member (23) during the compression stroke is used to push against the plug plate (22) provided inside the ring shell (2). The barrel (1) is provided with a liquid bladder (241), and the liquid bladder (241) is connected to the spray nozzle (244) opened on the barrel cover (11). The arc top of the arc part (23) under the suction stroke is used to squeeze the liquid bladder (241). A ring (3) is movably provided inside the barrel (1), and the ring (3) cooperates with the ring shell (2) to clamp the port of the garbage bag; The ring (3) is movably provided with two clamping rods (31) arranged in a circular array, and the clamping rods (31) are provided with clamps (311) for clamping garbage bags. The barrel (1) has interconnected inclined slides (323), transfer channels (324) and spiral channels (326), and the clamping rod (31) is provided with a sliding end (321) for sliding assembly, which is used for the following two workstations: At the first station, the sliding end (321) slides from the inclined slide (323) into the transfer channel (324) to make the clamping rod (31) close the garbage bag; In the second station, the sliding end (321) slides from the transfer channel (324) into the spiral channel (326) to make the clamp (311) tighten the garbage bag; The ring shell (2) is provided with a transfer cavity (25), and the transfer cavity (25) is divided into an inlet (251), an outlet (252) and a drain (253) according to its function. The sliding end (321) slides in the inclined slide (323) and moves like a piston, and connects the liquid bladder (241) to the liquid inlet (251). During the compression stroke, the plug plate (22) connects the liquid outlet (252) to the exhaust port (20); In the second working state, the chuck (311) is engaged with the vent (20); The clamp (311) is driven to move spirally at the upper quarter end of the garbage bag, and the vent (20) sprays disinfectant toward the upper end, causing the two clamps (311) to move spirally upward to apply the disinfectant flowing at the upper quarter end of the garbage bag.

2. The sterilization and disinfection device for laboratory trash cans according to claim 1, characterized in that, The transfer channel (324) is connected to a fan groove (325) at its end, and the inclined slide (323) is connected to the drain port (253) and the fan groove (325) respectively.

3. The sterilization and disinfection device for laboratory trash cans according to claim 1, characterized in that, A shallow channel (3261) is provided on the spiral channel (326). The sliding end (321) and the shallow channel (3261) are slidably engaged to bring the two clamps (311) together and make the garbage bag and the ring (3) move synchronously.

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