LU101193B1

LU101193B1 - Harmless treatment device for medical waste

Info

Publication number: LU101193B1
Application number: LU101193A
Authority: LU
Inventors: Yanan Xiong; Xiaoli Hou; Meimei Wang; Guangling Zhang; Ronghua Zhang
Original assignee: Univ North China Science & Technology
Priority date: 2018-05-14
Filing date: 2019-04-25
Publication date: 2019-08-20
Also published as: CN108689065A

Abstract

The present invention discloses a harmless treatment device for medical waste, comprising a box body having hollow interior, upper end provided with a disposal port; lower end provided with a first door body capable of opening and closing; a sterilization chamber provided with a first division plate inside along the disposal port, first division plate dividing sterilization chamber into a first and second chamber, a spray sterilization device and ultraviolet sterilizer disposed in first chamber, exhaust gas purification device installed in second chamber; waste storage chamber, second division plate disposed between waste storage chamber and sterilization chamber, second division plate provided with opening, upper end and lower end of opening is respectively mounted with second door body and packaging bag, conveying device of packaging bag and bag sealing device fixed under conveying device. The device can perform harmless sterilization on medical waste and realize automatic sealing and packaging.

Description

HARMLESS TREATMENT DEVICE FOR MEDICAL WASTE

TECHNICAL FIELD

[0001] The present invention relates to the field of waste treatment. More specifically, the present invention relates to a harmless treatment device for medical waste.

BACKGROUND

[0002] Medical waste refers to wastes that are produced in medical, preventive, health care and other related activities, and have direct or indirect infectivity, toxicity and other hazards. Medical wastes are divided into five categories, namely infectious waste, pathological waste, injurious waste, pharmaceutical waste and chemical waste. These wastes contain a large number of bacterial viruses, and have certain characteristics of space pollution, acute viral infection and latent infection. If medical wastes are not strengthened in management, discarded at will, mixed into domestic waste and dispersed into people's living environment, they will pollute atmosphere, water, land, and flora and fauna, cause the spread of disease and seriously endanger people's physical and mental health. At present, treatment devices used in most medical departments are relatively simple, and have mainly the following disadvantages: [0003] 1. It is impossible to eliminate the dangerous source carried by medical waste, and medical waste cannot be sealed and packaged, which may cause the risk of disease transmission and seriously endanger people's physical and mental health. [0004] 2. Traditional collection bucket for medical waste requires the staff to manually open the lid to carry out medical wastes, which is neither hygienic and nor safe, but also wastes time.

[0005] 3. Medical wastes cannot be classified and marked, so that medical wastes are basically mixed together, causing great trouble for later recycling and processing. [0006] Common treatment methods for medical wastes include: incineration, chemical sterilization, pressure steam sterilization, radiation sterilization, sanitary landfill, etc. For example, dozens or even hundreds of metal, "fly ash" and acid gases are released during the incineration process, which produces secondary pollutants such as toxic dioxins, and seriously affect human health. The sanitary landfill treatment for medical wastes needs to occupy a large amount of land, resulting in waste of land resources. Medical waste will inevitably cause secondary pollution of the environment, land and groundwater sources, and pose a hazard to human health due to high content of organic waste and difficult decompose characteristic.

DESCRIPTION

[0007] A purpose of the present invention is to solve at least above problems, and to provide, at least, the advantages that will be described later.

[0008] Another purpose of the present invention is to provide a harmless treatment device for medical waste, which is capable of performing harmless sterilization of medical waste and realizing automatic sealing and packaging.

[0009] In view of purposes mentioned above and other advantages, the present invention provides a harmless treatment device for medical waste, comprising: [00010] a box body having a hollow interior and an upper end provided with a disposal port; the lower end of the box body provided with a first door body that can be opened and closed; [00011] a sterilization chamber disposed at an upper portion of the box body, wherein a first division plate is vertically installed in the sterilization chamber near a side of the disposal port, and the first division plate divides the sterilization chamber into a first chamber containing the disposal port and a second chamber, a spray sterilization device which is installed in the first chamber, an ultraviolet sterilizer which is disposed on an inner wall of the first chamber, an exhaust gas purification device which is installed in the second chamber; [00012] a waste storage chamber disposed at a lower end of the sterilization chamber, a second division plate which is disposed between the waste storage chamber and the sterilization chamber, the second division plate provided with an opening, wherein the opening is connected with the waste storage chamber, and the upper end of the opening is provided with a second door body adapted to the opening, and the lower end of the opening is mounted with a packaging bag, a conveying device of the packaging bag, and a bag sealing device fixed under the conveying device.

[00013] Preferably, the harmless treatment device for medical waste also comprises a control mechanism including a controller and a plurality of touch switches disposed on the outer wall of the box body, and a time delay switch disposed at the second door body of the second division plate, wherein a plurality of touch switches and the time delay switch are respectively in communication with the controller.

[00014] Preferably, a fixed door and a sliding door are installed at the disposal port, the fixed door fixedly disposed at the disposal port, the fixed door having a hollow interior, wherein a guide rail is arranged on both sides of the inner part of the fixed door, the sliding door mounted on the guide rail and adapted to the sliding slot, the sliding door sliding on the sliding slot based on rotation of the guide rail; a driving device which is also installed in the fixed door, the guide rail connected to the driving device, the driving device comprising a micro motor, an infrared sensor and a power source, wherein the micro motor and the infrared sensor are respectively in communication with the controller, and the infrared sensor is configured to transmit a signal to the controller, and the controller is configured to control the rotation of the micro motor to control the opening and closing of the sliding door; a high temperature qlarm device which is disposed at a position of the upper surface of the box body near the disposal port, wherein the high temperature alarm device and the infrared sensor are respectively in communication with the controller, the infrared sensor is configured to transmit a signal to the controller, and the controller is configured to control opening and closing of the high temperature alarm device.

[00015] Preferably, the spray sterilization device comprises a liquid medicine tank installed at a bottom end of the first chamber; and a spray pipeline having one end connected with the liquid medicine tank, a circle of the spray pipeline arranged along a circumferential direction of inner wall of the first chamber, a plurality of through holes which are evenly spaced along the surface of the spray pipeline; and a water pump which is disposed at the bottom of the liquid medicine tank.

[00016] Preferably, the exhaust gas purification device includes: a purifier fixedly disposed in the second chamber, a left end of the purifier being connected to the first chamber through a air duct; a blower fan fixedly disposed in the second chamber, the left end of the blower fan being connected to the purifier through a air duct; and a ventilating window disposed on the right wall of the second chamber.

[00017] Preferably, the opening of the second division plate is funnel shape that is recessed downward.

[00018] Preferably, the conveying device of the packaging bag includes a frame fixedly disposed at a lower end of the opening, a roller motor mounted on the frame, and a bag conveying wheel mounted on the frame, wherein an output shaft of the roller motor is connected to the bag conveying wheel, and the roller motor is in communication with the time delay switch.

[00019] Preferably, the bag sealing device comprises a guide post fixing seat, a cylinder bracket, a guide post, a cylinder, a moving plate, a first heating rod, a second heating rod and a fixing plate; wherein the guide post fixing seat, the moving plate and the fixing plate are sequentially connected by the guide post, the left and right ends of the cylinder are respectively connected to the guide post fixing seat and the moving plate by the cylinder bracket, the first heating rod is disposed on the moving plate, and the second heating rod is disposed on the fixing plate, wherein the disposed position of the second heating rod is opposite to the first heating rod.

[00020] Preferably, an ink jet printer is installed in the waste storage chamber, wherein the ink jet printer and the touch switch are respectively in communication with the controller, the touch switch is configured to send a signal to the controller, and the controller is configured to control the ink jet printer for inkjet code on the packaging bag.

[00021] Preferably, the bottom of the box body corresponding to the position of the packaging bag is provided with a collecting box, a distance sensor which is disposed on the inner wall of the collecting box near the upper opening position, and the outer wall of the box body provided with a warning light in communication with the distance sensor, wherein the warning light and the distance sensor are respectively in communication with the controller, the distance sensor configured to transmit a signal to the controller, the controller configured to control the warning light to be turned on and off.

[00022] The present invention includes at least the following advantages: [00023] First, the invention realizes sterilization treatment of medical waste by providing the spray sterilization device, the ultraviolet sterilizer and the exhaust gas purification device in the sterilization chamber, purifies the gel medium generated by the medical waste in the first chamber, and effectively prevents environmental pollution harm to human health of the medical waste by harmless treatment of the medical waste.

[00024] Second, the invention realizes automatic packaging and sealing of the medical waste packaging bag by providing a packaging bag, a conveying device of the packaging bag and a bag sealing device at the opening of the second division plate, instead of the traditional manual sealing method, avoiding the contact between the human body and the packaging bag, and further guaranteeing safety and sanitation of medical waste storage, and physical and mental health safety of relevant staff.

[00025] Other advantages, objects, and features of the present invention will be showed in part through following description, and in part will be understood by those skilled in the art from study and practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[00026] Fig. 1 is an internal structure diagram of harmless treatment device for medical waste according to the present invention.

[00027] Fig. 2 is an external structure diagram of harmless treatment device for medical waste according to the present invention.

[00028] Fig. 3 is a structural diagram of the bag sealing device in harmless treatment device for medical waste according to the present invention.

DETAILED DESCRIPTION

[00029] The present invention will now be described in further detail with reference to the accompanying drawings in order to enable person skilled in the art to practice with reference to the description.

[00030] It should be noted that terms of "having", "containing" and "including" as used herein do not exclude presence or addition of one or more other elements or combinations thereof.

[00031] As shown in Fig.l, Fig.2 and Fig.3, the present invention provides a harmless treatment device for medical waste, comprising: [00032] a box body 10 having a hollow interior and an upper end provided with a disposal port 12; wherein the lower end of the box body 10 is provided with a first door body 28 that can be opened and closed; [00033] a sterilization chamber disposed at an upper portion of the box body 10, wherein a first division plate 40 is vertically installed in a side of the sterilization chamber along the disposal port, and the first division plate 40 divides the sterilization chamber into a first chamber 13 containing the disposal port, and a second chamber 14, a spray sterilization device which is installed in the first chamber 13, and an ultraviolet sterilizer 15 which is disposed on an inner wall of the first chamber 13, an exhaust gas purification device which is installed in the second chamber 14; [00034] a waste storage chamber disposed at a lower end of the sterilization chamber, a second division plate 41 which is disposed between the waste storage chamber and the sterilization chamber, wherein the second division plate 4lis provided with an opening 21, the opening 21 is connected with the waste storage chamber, the upper end of the opening 21 is mounted with a second door body adapted to the opening 21, and the lower end of the opening 21 is mounted with a packaging bag, a conveying device of the packaging bag, and a bag sealing device 24 fixed under the conveying device.

[00035] In the above technical solution, when the staffs puts the waste into the sterilization chamber through the disposal port, the spray sterilization device, the ultraviolet sterilizer 15 and the exhaust gas purification device disposed in the sterilization chamber work to sterilize the medical waste while the exhaust gas is purified in the first chamber 13. The box body 10 is made of a material that is resistant to ultraviolet rays to prevent ultraviolet leakage and cause harm to the human body. The medical waste in spray sterilization device installed in the first chamber 13 is sterilized by spraying sterilizing liquid, and the operation has the advantages of environmental protection, safety, simple operation, fast sterilization speed, good sterilization effect. And the medical waste can be further sterilized and disinfected by the ultraviolet sterilization device 15 to make the sterilization more thorough and to ensure the safety of the treated medical waste. The medical waste is put into the box body 10, and the gel medium is easily generated. A large amount of microorganisms such as mycelium can be found in the gel medium. If the gel medium is not purified, it is easy to cause secondary pollution. The gel medium generated by the medical waste in the first chamber 13 can be purified by the exhaust gas purification device installed in the second chamber 14 to avoid secondary pollution, prevent the pathogenic bacteria carried by the medical waste from transmitting into the air, and protect the physical and mental health of the staff.

[00036] The second door body is an automatic door. When the sterilization is completed, the second door body is opened, and then the medical waste is put into the packaging bag through the opening 21, the packaging bag is transported downward by the conveying device of the packaging bag, and the packaging bag is sealed by the bag sealing device 24. The automatic way is no need for personnel to pack the packaging bag, which is not only simple, convenient and fast, but also further protects the health and safety of the staff. The packaging bag adopts yellow special packaging for preventing leakage and anti-sharpening. The packaging bag is sealed for effectively insulating the contact of medical waste with the outside world, ensuring the safety and hygiene of disposal process for the medical waste.

[00037] In a preferred technical solution, the harmless treatment device for medical waste also comprises a control mechanism including a controller and a plurality of touch switches 27 disposed on the outer wall of the box body and a time delay switch disposed at the second door body of the second division plate 41, wherein a plurality of touch switches and the time delay switch are respectively in communication with the controller.

[00038] In the above technical solution, a plurality of touch switches 27 disposed on the outer wall of the box body 10 are used for selecting the types of medical wastes by staffs, and the types of medical wastes corresponding to the plurality of touch switches 27 are divided into infectious wastes, pathological wastes, injurious wastes, and pharmaceutical wastes, and chemical wastes, respectively. This disposing mode can facilitate the classification of medical wastes in the later stage. When the staff leaves, the controller controls the time delay switch to open, and the delay time set by the time delay switch is 10-15 minutes. The time delay switch can provide sterilization time for each sterilization device in the sterilization chamber to ensure thorough sterilization. Then, the time delay switch transmits a signal to the controller, the controller controls the second door body to open, and the medical waste enters the packaging bag through the opening 21.

[00039] In a preferred technical solution, a fixed door 29 and a sliding door 30 are installed at the disposal port, the fixed door 29 fixedly disposed at the disposal port, the fixed door 29 with a hollow interior, wherein a guide rail is arranged on both sides of the inner part of the fixed door 29, the sliding door 30 is mounted on the guide rail and adapted to the sliding slot, the sliding door 30 sliding on the sliding slot based on rotation of the guide rail; a driving device which is also installed in the fixed door 29, the guide rail connected to the driving device, the driving device comprising a micro motor, an infrared sensor and a power source, wherein the micro motor and the infrared sensor are respectively in communication with the controller, the infrared sensor is configured to transmit a signal to the controller, and the controller is configured to control the rotation of the micro motor to control the opening and closing of the sliding door 30; a high temperature alarm device which is disposed at a position of the upper surface of the box body 10 near the disposal port, wherein the high temperature alarm device and the infrared sensor are respectively in communication with the controller, the infrared sensor is configured to transmit a signal to the controller, and the controller is configured to control opening and closing of the high temperature alarm device.

[00040] In the above technical solution, the infrared sensor is in communication with the controller, and the action of the human body is sensed by the infrared sensor. And then the infrared sensor transmits the signal to the controller, and the controller controls the rotation of the micro motor to control the rotation of the guide rail to realize automatic opening and closing of the sliding door 30. Thereby, the direct contact between the staff and the box body 10 is avoided, and the placing process of medical wastes is safer and more sanitary. When the infrared sensor senses the departure of the human body, and then the infrared sensor transmits a signal to the controller. The controller controls the sliding door 30 to close, and the controller controls the spray sterilization device, the ultraviolet sterilizer 15 and the exhaust gas purification device to operate.

[00041] When the spray sterilization device is in working state, if the infrared sensor senses the proximity of the human body, the infrared sensor transmits a signal to the controller, and the controller controls the high temperature alarm device to open. And an alarm is issued. When the infrared sensor senses that the human body is away, the controller controls the high temperature alarm device is turned off.

[00042] In a preferred technical solution, the spray sterilization device comprises a liquid medicine tank 19 installed at a bottom end of the first chamber 13; and a spray pipeline 18 having one end connected with the liquid medicine tank 19, a circle of the spray pipeline 18 arranged along a circumferential direction of inner wall of the first chamber 13, a plurality of through holes which are evenly spaced along the surface of the spray pipeline 18; and a water pump 20 which is disposed at the bottom of the liquid medicine tank 19.

[00043] In the above technical solution, the water pump 20 is used for providing pressure for the spray pipeline 18 to normally spray the sterilizing liquid. Sterilizing liquid in the liquid medicine tank is used for sterilizing medical wastes in the box body 10, and the sterilized medicine solution is put into the packaging bag together with the medical waste for completing the sterilization and cleaning process of medicine solution. And the treatment way avoids the pathogens carried by the medical waste to cause secondary pollution, so that the treated medical wastes reach a harmlessness level.

[00044] In a preferred technical solution, the exhaust gas purification device includes a purifier 17 fixedly disposed in the second chamber 14, wherein a left end of the purifier 17 is connected to the first chamber 13 through a air duct; a blower fan 16 is fixedly disposed in the second chamber 14, the left end of the blower fan 16 is connected to the purifier 17 through a air duct; and a ventilating window 11 is disposed on the right wall of the second chamber 14.

[00045] In the above technical solution, the blower fan 16 is fixedly disposed in the second chamber 14. The left end of the blower fan 16 is connected to the purifier 17 through the air duct, and the left end of the purifier 17 is connected to the first chamber 13 through the air duct. The exhaust gas in the chamber 13 is purified by the purifier 17. The inner chamber of the purifier 17 is provided with a biological reaction layer and an activated carbon layer, and has the functions of purifying the exhaust gas by means of biological reaction and physical adsorption, respectively. The ventilating window 11 is set on the right side of the box body 10, and an anti-dust mesh is arranged therein, which has the functions of ventilation and dustproof. The medical waste is placed in the box body 10, and the gel medium is easily generated. A large amount of microorganisms such as mycelium can be found in the gel medium. If the gel medium is not purified, it is likely to cause secondary pollution. By providing an exhaust gas purification device, the aerogel in the first chamber 13 is sucked by the blower fan 16, and the aerogel medium is purified by the purifier 17, so that when the medical waste is re-discharged, the disposal port is opened, and the aerogel in the box body does not propagate into the air causing secondary pollution.

[00046] In a preferred technical solution, the opening 21 of the second division plate 41 is funnel shape that is recessed downward.

[00047] In the above technical solution, the opening 21 of the second division plate 41 adopts funnel shape that is recessed downward, and the medical waste put into the sterilization chamber can generate the downward running power due to gravity, so that the medical waste is put into the packaging bag under the opening, which is convenient and quick.

[00048] In a preferred technical solution, the conveying device of the packaging bag includes a frame fixedly disposed at a lower end of the opening 21, a roller motor 22 mounted on the frame, and a bag conveying wheel 23 mounted on the frame, wherein an output shaft of the roller motor 22 is connected to the bag conveying wheel 23, and the roller motor 22 is communication with the time delay switch.

[00049] In the above technical solution, when the time delay switch transmits a signal to the controller, and the controller controls the second door body located on the second division plate 41 to open, and the controller controls the roller motor 22 to operate, thereby driving the bag conveying wheel 23 connected with the output shaft of the roller motor 22 to be operated. And then the packaging bag is droved to be conveyed downward the bag conveying wheel 23 drives.

[00050] In a preferred technical solution, the bag sealing device 24 comprises a guide post fixing seat 31, a cylinder bracket 32, a guide post 33, a cylinder 34, a moving plate 35, a first heating rod 36, a second heating rod 38 and a fixing plate 39; wherein the guide post fixing seat 31, the moving plate 35 and the fixing plate 39 are sequentially connected by the guide post 33, the left and right ends of the cylinder 34 are respectively connected to the guide post fixing seat 31 and the moving plate 35 by the cylinder bracket 32, the first heating rod 36 is disposed on the moving plate 35, and the second heating rod 38 is disposed on the fixing plate 39, wherein the disposed position of the second heating rod 38 is opposite to the first heating rod 36.

[00051] In the above technical solution, the bag sealing device 24 includes a guide post fixing seat 31, two cylinder brackets 32, two guide posts 33, a cylinder 34, a moving plate 35, a first heating rod 36, four filler blocks 37, a second heating rod 38, and a fixing plate. 39; wherein the guide post fixing seat 31, the moving plate 35, and the fixing plate 39 are respectively connected by two guide posts 33, the cylinder 34 is connected to the guide post fixing seat 31 and the moving plate 35 through two cylinder brackets 32, respectively. The first heating rod 36 is disposed on the moving plate 35, and filler blocks 37 are disposed on both sides of the first heating rod 36. The second heating rod 38 is disposed at a position on the fixing plate 39 opposite to the first heating rod 36, and filler blocks 37 is also disposed on both sides of the second heating rod 38. In this device, the cylinder 34 telescopically pushes the first heating rod 36 on the moving plate 35 toward the second heating rod 38 on the fixing plate 39 for heating and pressing the opening of the packaging bag, thereby completing the process of closing the opening of packaging bag.

[00052] In a preferred technical solution, an ink jet printer 25 is installed in the waste storage chamber, wherein the ink jet printer 25 and the touch switch 27 are respectively in communication with the controller, the touch switch 27 is configured to send a signal to the controller, and the controller is configured to control the inkjet printer 25 for inkjet code on the packaging bag.

[00053] In the above technical solution, the staff determines the type of medical wastes by selecting the touch switch 27 on the outer wall of the box body 10. The touch switch 27 transmits a signal to the controller, and the controller controls the ink jet printer 25 to code the corresponding medical waste type character on the packaging bag. By setting the ink jet printer 25 to code the packaging bag, it is convenient for the waste disposal personnel to confirm the type of medical waste in the packaging bag to facilitate the recovery and disposal of the medical waste.

[00054] In a preferred technical solution, the bottom of the box body 10 corresponding to the position of the packaging bag is provided with a collecting box 26, wherein a distance sensor 43 is disposed on the inner wall of the collecting box 26 near the upper opening position, and the outer wall of the box body 10 is provided with a warning light 42 in communication with the distance sensor 43, wherein the warning light 42 and the distance sensor 43 are respectively in communication with the controller, the distance sensor 43 is configured to transmit a signal to the controller, the controller is configured to control the warning light 42 to be turned on and off.

[00055] In the above technical solution, the collecting box 26 at the bottom of the box body 10 is used for collecting the packaging bag. When the distance sensor 43 senses that the packaging bag in the collecting box 26 is filled to the opening position of the collecting box, the distance sensor 43 transmits a signal to the controller, and the controller controls the warning light to be turned on for reminding the staff to take out the packaging bag in the collecting box 26. When the distance sensor 43 senses that the height of the packaging bag in the collecting box 26 does not reach the opening position of the collecting box, the distance sensor 43 transmits a signal to the controller, and the controller controls the warning light 42 to be closed. It helps the staff to take out the packaging bag in time to ensure the normal use of the device by setting the distance sensor 43 and the warning light 42,.

[00056] Embodiment 1 [00057] 1. The staff puts the medical waste into the disposal port, the infrared sensor senses the action of the human body, the controller controls the sliding door 30 to open, and the medical waste is put into the sterilization chamber.

[00058] 2. The staff selects the touch switch 27 on the outer wall of the box body 10 according to the type of medical waste, and touches it, and then the controller controls the ink: jet printer 25 to code the packaging bag.

[00059] 3. The infrared sensor senses that the human body is away, the controller controls the sliding door 30 to be closed and the time delay switch is opened. At the same time, the controller controls the spray sterilization device, the ultraviolet sterilizer 15 and the exhaust gas purification device to work for sterilizing the medical waste and purifying the aerosol in the first chamber 13.

[00060] 4. The time delay switch transmits a signal to the controller after 10-15 minutes, and the controller controls the second door body at the second division plate 41 to open. The medical waste is put into the packaging bag through the opening 21, and the packaging bag is conveyed downward by the conveying device of the packaging bag. The packaging bag is sealed by the bag sealing device 24 seals, and then the packaging bag is dropped into the collecting box 26. When the collecting box 26 is filled with the packaging bag, the distance sensor 43 transmits a signal to the controller, the warning light 42 is turned on. And then the staff opens the first door body 28 at the lower end of the box body 10, and takes out of the packaging bag. The warning light 42 is turned off.

[00061] Although embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the Specification and implementation modes. They can be applied to all kinds of fields suitable for the present invention. Additional modifications can be easily implemented for those who are familiar with the field. Therefore, the present invention is not limited to specific details and the legends shown and described herein without deviation from the general concepts confined in the Claim and the Equivalents.

Claims

1. A harmless treatment device for medical waste, being characterized in that, comprises: a box body having a hollow interior and an upper end provided with a disposal port; the lower end of the box body provided with a first door body that can be opened and closed; a sterilization chamber disposed at an upper portion of the box body, wherein a first division plate is vertically installed in the sterilization chamber near a side of the disposal port, and the first division plate divides the sterilization chamber into a first chamber containing the disposal port, and a second chamber, a spray sterilization device which is installed in the first chamber, an ultraviolet sterilizer which is disposed on an inner wall of the first chamber, an exhaust gas purification device which is installed in the second chamber; a waste storage chamber disposed at a lower end of the sterilization chamber, a second division plate which is disposed between the waste storage chamber and the sterilization chamber, the second division plate provided with an opening, wherein the opening is connected with the waste storage chamber, the upper end of the opening is provided with a second door body adapted to the opening, and the lower end of the opening is mounted with a packaging bag, a conveying device of the packaging bag, and a bag sealing device fixed under the conveying device.

2. The harmless treatment device for medical waste according to claim 1, being characterized in that, the harmless treatment device for medical waste also comprises a control mechanism including a controller, a plurality of touch switches disposed on the outer wall of the box body, and a time delay switch disposed at the second door body of the second division plate, wherein a plurality of touch switches and the time delay switch are respectively in communication with the controller.

3. The harmless treatment device for medical waste according to claim 1, being characterized in that, a fixed door and a sliding door are installed at the disposal port, the fixed door fixedly disposed at the disposal port, the fixed door having a hollow interior, wherein a guide rail is arranged on both sides of the inner part of the fixed door, the sliding door mounted on the guide rail and adapted to the sliding slot, the sliding door sliding on the sliding slot based on rotation of the guide rail; a driving device which is also installed in the fixed door, the guide rail connected to the driving device, the driving device comprising a micro motor, an infrared sensor and a power source, wherein the micro motor and the infrared sensor are respectively in communication with the controller, and the infrared sensor is configured to transmit a signal to the controller, the controller is configured to control the rotation of the micro motor to control the opening and closing of the sliding door; a high temperature alarm device which is disposed at a position of the upper surface of the box body near the disposal port, wherein the high temperature alarm device and the infrared sensor are respectively in communication with the controller, the infrared sensor is configured to transmit a signal to the controller, and the controller is configured to control opening and closing of the high temperature alarm device.

4. The harmless treatment device for medical waste according to claim 1, being characterized in that, the spray sterilization device comprises: a liquid medicine tank installed at a bottom end of the first chamber; a spray pipeline having one end connected with the liquid medicine tank, a circle of the spray pipeline arranged along a circumferential direction of inner wall of the first chamber, a plurality of through holes which are evenly spaced along the surface of the spray pipeline; a water pump which is disposed at the bottom of the liquid medicine tank.

5. The harmless treatment device for medical waste according to claim 1, being characterized in that, the exhaust gas purification device includes: a purifier fixedly disposed in the second chamber, a left end of the purifier being connected to the first chamber through a air duct; a blower fan fixedly disposed in the second chamber, the left end of the blower fan being connected to the purifier through a air duct; a ventilating window disposed on the right wall of the second chamber.

6. The harmless treatment device for medical waste according to claim 1, being characterized in that, the opening of the second division plate is funnel shape that is recessed downward.

7. The harmless treatment device for medical waste according to claim 2, being characterized in that, the conveying device of the packaging bag includes a frame fixedly disposed at a lower end of the opening, a roller motor mounted on the frame, and a bag conveying wheel mounted on the frame, wherein an output shaft of the roller motor is connected to the bag conveying wheel, and the roller motor is in communication with the time delay switch.

8. The harmless treatment device for medical waste according to claim 1, being characterized in that, the bag sealing device comprises a guide post fixing seat, a cylinder bracket, a guide post, a cylinder, a moving plate, a first heating rod, a second heating rod and a fixing plate; wherein the guide post fixing seat, the moving plate and the fixing plate are sequentially connected by the guide post, the left and right ends of the cylinder are respectively connected to the guide post fixing seat and the moving plate by the cylinder bracket, the first heating rod is disposed on the moving plate, and the second heating rod is disposed on the fixing plate, wherein the disposed position of the second heating rod is opposite to the first heating rod.

9. The harmless treatment device for medical waste according to claim 2, being characterized in that, an ink jet printer is installed in the waste storage chamber, wherein the ink jet printer and the touch switch are respectively in communication with the controller, the touch switch is configured to send a signal to the controller, and the controller is configured to control the ink jet printer for inkjet code on the packaging bag.

10. The harmless treatment device for medical waste according to claim 2, being characterized in that, the bottom of the box body corresponding to the position of the packaging bag is provided with a collecting box, a distance sensor which is disposed on the inner wall of the collecting box near the upper opening position, and the outer wall of the box body provided with a warning light in communication with the distance sensor, wherein the warning light and the distance sensor are respectively in communication with the controller, the distance sensor configured to transmit a signal to the controller, the controller configured to control the warning light to be turned on and off.