Diabetic foot wound detecting and flushing device

Abstract

The diabetic foot wound detecting and flushing device comprises a combined mounting frame, detecting and flushing units are arranged at the two ends of the combined mounting frame respectively, each detecting and flushing unit comprises a shell, a dynamic sealing device is arranged at an opening of the shell, and a processing module is arranged at the upper end of the dynamic sealing device. A side scanning module is arranged at the lower end of the dynamic sealing device, first spray heads and photoelectric units are alternately arranged in the middles of the inner walls of the two sides of the shell, a detection physiotherapy module is arranged on the inner wall of the bottom of the shell, and second spray heads are arranged on the two sides of the detection physiotherapy module; a first air circulation module, a second air circulation module and a waste liquid treatment module are arranged on the outer wall of one side of the shell from top to bottom. According to the method, complete information of the wound is obtained through scanning modeling, precise cleaning and disinfection are carried out, and the treatment effect is improved through mutual cooperation of near-infrared irradiation, the oxidation environment and hot compress.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a diabetic foot wound detection and flushing device. Background Art

[0002] Diabetic foot refers to a disease state in which ulcers and gangrene occur in the feet of diabetic patients due to neuropathy, which reduces the protective function of the lower limbs, and macrovascular and microvascular lesions, which cause insufficient arterial perfusion and microcirculatory disorders. Diabetic foot is a serious complication of diabetes and one of the important causes of disability and even death in diabetic patients, causing great pain to patients. There are two types of diabetic foot symptoms, dry and wet, but both have symptoms such as bacterial infection, pus, and local necrosis.

[0003] Patients with diabetic foot can greatly relieve symptoms and promote wound healing through conservative treatments such as regular disinfection and debridement, infrared therapy, etc. However, existing technologies such as spray cleaning and negative pressure drainage can only clean the surface of the wound, but cannot perform deep debridement of the wound, resulting in debridement dead corners. In addition, the low oxygen concentration deep inside the wound makes it easy for anaerobic bacteria to multiply and grow in large numbers, aggravating the infection, worsening the wound surface, and affecting wound healing. Summary of the invention

[0004] In order to solve the technical problem that the treatment methods in the prior art cannot perform deep debridement and have poor treatment effects, the diabetic foot wound detection and flushing device proposed in the present invention includes a combined mounting frame, and detection and flushing units are respectively arranged at both ends of the combined mounting frame;

[0005] The detection and flushing unit includes a shell, a dynamic closing device is arranged at the opening of the shell, a processing module is arranged at the upper end of the dynamic closing device, a side scanning module is arranged at the lower end of the dynamic closing device, a first nozzle and a photoelectric unit are alternately arranged in the middle of the inner walls on both sides of the shell, a detection and therapy module is arranged on the bottom inner wall of the shell, a second nozzle is arranged on both sides of the detection and therapy module, and a first air circulation module, a second air circulation module and a waste liquid treatment module are arranged from top to bottom on the outer wall of one side of the shell.

[0006] Preferably, the dynamic closing device includes a first fixed plate, a sliding plate, a first clamping portion, a second clamping portion and a second fixed plate, the first fixed plate and the second fixed plate are respectively arranged at both ends of the shell opening, a groove and a motor are arranged inside the first fixed plate, the sliding plate is arranged in the groove, and can move left and right along the groove driven by the motor, the first clamping portion is connected to the sliding plate, and the second clamping portion is connected to the second fixed plate.

[0007] Preferably, the first clamping portion includes a first covering plate and a first clamping unit, the first clamping unit is a hollow cylindrical shape, and extends downward from the semicircular opening of the first covering plate to a set length, an inflatable airbag is arranged inside the first clamping unit, and an electric heating film is arranged inside the inflatable airbag, and the second clamping portion includes a second covering plate and a second clamping unit, the second clamping unit is a hollow cylindrical shape, and extends downward from the semicircular opening of the second covering plate to the same length as that of the first clamping unit, an inflatable airbag is arranged inside the first clamping unit and the second clamping unit, and an electric heating film is arranged inside the inflatable airbag.

[0008] Preferably, the side scanning module comprises a first sealed shell, a first flip cover is provided at the opening of the first sealed shell, a telescopic rod is provided inside the first sealed shell, a scanning platform is provided at the end of the telescopic rod, and a three-dimensional scanner is installed on the scanning platform.

[0009] Preferably, the photoelectric unit is cylindrical, and the lighting lamp, the first heating lamp and the first physiotherapy lamp are evenly arranged along the circumferential direction.

[0010] Preferably, the detection and therapy module includes a second sealed shell, which is a hollow rectangular structure. The opening of the second sealed shell is provided with a second flip cover. The interior of the second sealed shell is provided with a millimeter-wave radar detection array distributed along the length direction of the rectangular structure, and a therapy array is provided between the millimeter-wave radar detection arrays.

[0011] Preferably, the millimeter-wave radar detection array includes a plurality of millimeter-wave radar modules arranged along the length direction of the cuboid, and the physiotherapy array includes a second heating lamp and a second physiotherapy lamp arranged at intervals along the length direction of the cuboid.

[0012] Preferably, the waste liquid treatment module includes a pump, which absorbs waste liquid generated by the diabetic foot wound detection and flushing device during the flushing and disinfection process through an absorption tube, and the pump transmits the absorbed waste liquid to the interior of the waste liquid treatment module through a release tube.

[0013] Preferably, the second air circulation module includes a first air channel, a second air channel and a third air channel, one end of the third air channel is connected to the first air channel and the second air channel, the other end of the third air channel is connected to the interior of the shell, and a third electric valve and a second fan are arranged in sequence from the inside to the outside, one end of the first air channel away from the third air channel is connected to oxygen, an oxygen control seat is arranged, and a portable oxygen tank is plugged into the oxygen control seat, one end of the second air channel away from the third air channel is connected to the outside air, and a second filter module and a fourth electric valve are arranged in sequence from the inside to the outside.

[0014] Preferably, the first air circulation module includes an air passage connecting the outside and the inside of the shell, and a first electric valve, a first filter module, a first sterilization module, a first heating module, a first fan and a second electric valve are sequentially arranged in the air passage.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Through scanning and modeling, we can obtain complete information about the wound and perform precise cleaning and disinfection. In addition, through the coordination of near-infrared irradiation, oxidative environment and hot compress, we can improve the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a diabetic foot wound detection and flushing device of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the detection and flushing unit of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the dynamic closing device of the present invention;

[0020] Figure 4 is a top view of the dynamic closure device of the present invention;

[0021] Figure 5 It is a structural schematic diagram of the side scanning module of the present invention;

[0022] Figure 6 It is a structural schematic diagram of the photoelectric unit of the present invention;

[0023] Figure 7 It is a structural schematic diagram of the detection and therapy module of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the waste liquid treatment module of the present invention;

[0025] Fig. 9 is a schematic structural diagram of a second air circulation module of the present invention;

[0026] Fig.10 It is a structural schematic diagram of the first air circulation module of the present invention.

[0027] Legend: 1. Combined mounting frame, 2. Detection and flushing unit, 201. Dynamic closing device, 2011. First fixed plate, 2012. Sliding plate, 2013. First clamping part, 20131. First covering plate, 20132. First clamping unit, 2014. Second clamping part, 20141. Second covering plate, 20142. Second clamping unit, 2015. Second fixed plate, 202. Shell, 203. Side scanning module, 2031. First sealed shell, 2032. First flip cover, 2033. Telescopic rod, 2034. Scanning platform, 2035. Three-dimensional scanner, 204. First nozzle, 205. Photoelectric unit, 2051. Illuminating lamp, 2052. First heating lamp, 2053. First physiotherapy lamp, 206. Detection and physiotherapy module block, 2061, a second sealed shell, 2062, a second flip cover, 2063, a millimeter-wave radar detection array, 2064, a physical therapy array, 207, a second nozzle, 208, a waste liquid treatment module, 2081, a pump, 2082, an absorption tube, 2083, a release tube, 209, a second air circulation module, 2091, a third electric valve, 2092, a second fan, 2093, an oxygen control seat, 2094, a portable oxygen tank, 2095, a second filter module, 2096, a fourth electric valve, 210, a first air circulation module, 2101, a first electric valve, 2102, a first filter module, 2103, a first sterilization module, 2104, a first heating module, 2105, a first fan, 2106, a second electric valve, 211, a processing module. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] like Figure 1 As shown, the diabetic foot wound detection and flushing device proposed by the present invention comprises a combined mounting frame 1, and detection and flushing units 2 are respectively arranged at both ends of the combined mounting frame 1.

[0030] like Figure 2 As shown, the detection and flushing unit 2 includes a shell 202, and the shell 202 is a rectangular structure. A dynamic closing device 201 is arranged at the opening of the shell 202, a processing module 211 is arranged at the upper end of the dynamic closing device 201, and a side scanning module 203 is arranged at the lower end of the dynamic closing device 201. First nozzles 204 and photoelectric units 205 are alternately arranged in the middle of the inner walls on both sides of the shell 202, a detection and therapy module 206 is arranged on the bottom inner wall of the shell 202, and second nozzles 207 are arranged on both sides of the detection and therapy module 206. The outer wall of one side of the shell 202 is provided with a first air circulation module 210, a second air circulation module 209 and a waste liquid treatment module 208 from top to bottom.

[0031] like Figure 3 and Figure 4 As shown, the dynamic closing device 201 includes a first fixed plate 2011, a sliding plate 2012, a first clamping portion 2013, a second clamping portion 2014 and a second fixed plate 2015. The first fixed plate 2011 and the second fixed plate 2015 are respectively arranged at the two ends of the opening of the housing 202, and the widths of the first fixed plate 2011 and the second fixed plate 2015 are the same, both larger than the opening width of the housing 202, forming a protruding edge, providing a point of force for the user when moving the diabetic foot wound detection and flushing device. The first fixed plate 2011 is provided with a groove and a motor inside, and the sliding plate 2012 is arranged in the groove, and can move left and right along the groove under the drive of the motor. The first clamping portion 2013 is connected to the sliding plate 2012, and can move left and right under the drive of the sliding plate 2012. The first clamping part 2013 includes a first cover plate 20131 and a first clamping unit 20132. The width of the first cover plate 20131 is the same as that of the first fixing plate 2011. The first clamping unit 20132 is a hollow cylinder, extending downward from the semicircular opening of the first cover plate 20131 by a set length. An inflatable airbag is arranged inside the first clamping unit 20132, and an electric heating film is arranged inside the inflatable airbag. The first clamping unit 20132 is arranged at a position corresponding to the upper half of the sliding plate 2012. The width of the sliding plate 2012 is the same as the opening width of the housing 202. Sealing rings are arranged at the corresponding positions of the first cover plate 20131 and the opening ends of the sliding plate 2012 and the housing 202 to ensure the air tightness of the diabetic foot wound detection and flushing device. The second clamping portion 2014 is connected to the second fixed plate 2015, and the second clamping portion 2014 includes a second covering plate 20141 and a second clamping unit 20142. The width of the second covering plate 20141 is the same as that of the second fixed plate 2015. The second clamping unit 20142 is a hollow cylinder. The length extending downward from the semicircular opening of the second covering plate 20141 is the same as that of the first clamping unit 20132. An inflatable airbag is arranged inside the second clamping unit 20142, and an electric heating film is arranged inside the inflatable airbag.

[0032] like Figure 5As shown, the side scanning module 203 includes a first sealed housing 2031, a first flip cover 2032 is provided at the opening of the first sealed housing 2031, a telescopic rod 2033 is provided inside the first sealed housing 2031, a scanning platform 2034 is provided at the end of the telescopic rod 2033, and a three-dimensional scanner 2035 is installed on the scanning platform 2034. The three-dimensional scanner 2035 is specifically selected from the Revopoint POP3 portable three-dimensional scanner launched by Zhixiang Broadcasting and Television Company. In a non-working state, the three-dimensional scanner 2035 is retracted inside the first sealed housing 2031, and the first flip cover 2032 is in a closed state. In a working state, the first flip cover 2032 is in an open state, and the telescopic rod 2033 is extended, so that the three-dimensional scanner 2035 is located on the side of the patient's foot.

[0033] The directions of the first nozzle 204 and the second nozzle 207 can be controlled by motors.

[0034] like Figure 6 As shown, the photoelectric unit 205 is cylindrical, and is evenly provided with an illumination lamp 2051, a first heating lamp 2052, and a first physiotherapy lamp 2053 along the circumferential direction. The first heating lamp 2052 uses a far-infrared lamp with an emission wavelength of 2.5 to 15 microns, and the first physiotherapy lamp 2053 uses a near-infrared lamp with an emission wavelength of 0.76 to 2 microns.

[0035] like Figure 7 As shown, the detection and therapy module 206 includes a second sealed shell 2061, which is a hollow rectangular parallelepiped structure. The length of the rectangular parallelepiped structure is equal to the opening width of the shell 202. The second sealed shell 2061 is set at a position corresponding to the combination position of the first clamping part 2013 and the second clamping part 2014 to cover the bottom surface of the patient's foot. The opening of the second sealed shell 2061 is provided with a second flip cover 2062. The interior of the second sealed shell 2061 is provided with a millimeter wave radar detection array 2063 distributed along the length direction of the rectangular parallelepiped, and a therapy array 2064 is provided between the millimeter wave radar detection arrays. The millimeter wave radar detection array 2063 includes a plurality of millimeter wave radar modules arranged along the length direction of the rectangular parallelepiped. The millimeter wave radar module uses a 24GHz low-power millimeter wave radar module launched by Xijie Microelectronics. The physiotherapy array 2064 includes a second heating lamp and a second physiotherapy lamp spaced apart along the length direction of the cuboid, the second heating lamp uses a far-infrared lamp with an emission wavelength of 2.5 to 15 microns, and the second physiotherapy lamp uses a near-infrared lamp with an emission wavelength of 0.76 to 2 microns. In the non-working state, the second flip cover 2062 is in a closed state, and in the working state, the second flip cover 2062 is in an open state.

[0036] like Figure 8As shown, the waste liquid treatment module 208 includes a pump 2081, which absorbs the waste liquid generated by the diabetic foot wound detection and flushing device during the flushing and disinfection process through an absorption tube 2082. The absorption tube 2082 passes through the shell 202 and extends to the bottom surface of the shell 202 to ensure that the waste liquid is absorbed as cleanly as possible. The pump 2081 transmits the absorbed waste liquid to the inside of the waste liquid treatment module 208 through the release tube 2083.

[0037] like Fig. 9 As shown, the second air circulation module 209 includes a first air channel, a second air channel and a third air channel. One end of the third air channel is connected to the first air channel and the second air channel, and the other end of the third air channel is connected to the interior of the housing 202, and a third electric valve 2091 and a second fan 2092 are sequentially arranged from the inside to the outside. The end of the first air channel away from the third air channel is connected to oxygen, and an oxygen control seat 2093 is arranged. A portable oxygen tank 2094 is plugged into the oxygen control seat 2093, and the oxygen control seat 2093 controls the opening and closing of the air outlet of the portable oxygen tank 2094 through a motor. The end of the second air channel away from the third air channel is connected to the outside air, and a second filter module 2095 and a fourth electric valve 2096 are sequentially arranged from the inside to the outside. The second filter module 2095 uses a graphite filter to filter impurities and odors in the internal air.

[0038] like Fig.10 As shown, the first air circulation module 210 includes an air passage connecting the outside and the inside of the housing 202, and the first electric valve 2101, the first filter module 2102, the first sterilization module 2103, the first heating module 2104, the first fan 2105 and the second electric valve 2106 are sequentially arranged in the air passage. The first filter module 2102 uses a graphite filter to filter impurities in the air. The first sterilization module 2103 uses ultraviolet rays with a wavelength of 253.7 nanometers to sterilize the air. The first heating module 2104 uses an electric heating film to heat the air.

[0039] The processing module 211 is wirelessly connected to the dynamic sealing device 201, the side scanning module 203, the first nozzle 204, the photoelectric unit 205, the detection and treatment module 206, the second nozzle 207, the first air circulation module 210, the second air circulation module 209 and the waste liquid treatment module 208 to control the working process of the diabetic foot wound detection and flushing device. The working process specifically includes:

[0040] S1. Fix the patient's foot. Specifically, the sliding plate 2012 is completely retracted inside the first fixing plate 2011, the patient's foot enters the device, the second flip cover 2062 is opened, and the millimeter wave radar detection array 2063 starts working to detect the distance between the patient's foot and the bottom. When the distance reaches the distance threshold, the processing module 211 reminds the patient to stop moving. The distance threshold can ensure that the patient's foot is located in the middle position of the coverage area of ​​the first nozzle 204. The sliding plate 2012 moves to combine the first clamping part 2013 and the second clamping part 2014. The inflatable airbags inside the first clamping part 2013 and the second clamping part 2014 are inflated. The inflatable airbags will wrap the patient's ankles to stably clamp the patient's feet and prevent the patient's feet from shaking during the flushing process.

[0041] S2. Scan the patient's foot. Specifically, the first flap 2032 is opened, and the telescopic rod 2033 is extended so that the three-dimensional scanner 2035 is located on the side of the patient's foot. The lighting lamp 2051 is turned on. The three-dimensional scanner 2035 is responsible for scanning the side of the patient's foot, and the millimeter-wave radar detection array 2063 is responsible for scanning the bottom of the patient's foot. The processing module 211 determines the three-dimensional model of the patient's foot based on the data of the three-dimensional scanner 2035 and the millimeter-wave radar detection array 2063, and determines the position and depth of the wound based on the three-dimensional model.

[0042] S3, cleaning and disinfecting the wound, specifically, the three-dimensional scanner 2035 is retracted into the first sealed housing 2031 through the telescopic rod 2033, the first flip cover 2032 is in a closed state, the second flip cover 2062 is in a closed state, and the processing module 211 controls the nozzle direction of the first nozzle 204 and the second nozzle 207 according to the position and depth of the wound, and sprays clean water and disinfectant in sequence. The first electric valve 2101, the second electric valve 2106, the third electric valve 2091 and the fourth electric valve 2096 are opened, the first fan 2105 and the second fan 2092 are started, the first air circulation module 210 inhales external air, the second air circulation module 209 exhausts internal air, and the first air circulation module 210 and the second air circulation module 209 cooperate with each other to circulate the air inside the device.

[0043] S4. Perform physical therapy on the wound. Specifically, the second flip cover 2062 is opened, and the processing module 211 turns on the corresponding first physical therapy lamp 2053 and the second physical therapy lamp in the physical therapy array 2064 according to the position and depth of the wound, and performs near-infrared irradiation on the wound. Close the first electric valve 2101, the second electric valve 2106 and the fourth electric valve 2096, open the third electric valve 2091, stop the first fan 2105, change the rotation direction of the second fan 2092, and the oxygen control seat 2093 opens the outlet of the portable oxygen tank 2094 through the motor to output oxygen. The second fan 2092 delivers oxygen to the inside of the device to provide an oxidizing environment for the patient's feet. Turn on the electric heating film inside the inflatable airbag, apply hot compress to the patient, and promote blood circulation. Near-infrared irradiation, oxidizing environment and hot compress cooperate with each other to promote the healing of the wound.

[0044] S5. Dry the patient's feet. Specifically, close the third electric valve 2091, stop the second fan 2092 and the oxygen control seat 2093, turn on the first heating lamp 2052 by the processing module 211, open the second flip cover 2062, turn on the second heating lamp in the physical therapy array 2064 to dry the moisture of the patient's feet, and turn off the first heating lamp 2052 and the second heating lamp after the set drying time.

[0045] S6. The device performs self-cleaning and releases the patient's foot. Specifically, the waste liquid treatment module 208 cleans the waste liquid inside the device. Driven by the sliding plate 2012, the first clamping part 2013 moves away from the second clamping part 2014.

[0046] The above disclosure is only the preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the present invention. It should be pointed out that for those skilled in the art, any equivalent changes made to the scheme of the present invention without departing from the design structure and principle of the present invention are considered to be within the protection scope of the present invention.

Claims

1. A diabetic foot wound detection and flushing device, characterized in that ,The diabetic foot wound detection and flushing device comprises a combined mounting frame, and detection and flushing units are respectively arranged at both ends of the combined mounting frame; The detection and flushing unit includes a shell, a dynamic closing device is arranged at the opening of the shell, a processing module is arranged at the upper end of the dynamic closing device, a side scanning module is arranged at the lower end of the dynamic closing device, a first nozzle and a photoelectric unit are alternately arranged in the middle of the inner walls on both sides of the shell, a detection and therapy module is arranged on the bottom inner wall of the shell, a second nozzle is arranged on both sides of the detection and therapy module, and a first air circulation module, a second air circulation module and a waste liquid treatment module are arranged from top to bottom on the outer wall of one side of the shell.

2. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The dynamic closing device includes a first fixed plate, a sliding plate, a first clamping portion, a second clamping portion and a second fixed plate. The first fixed plate and the second fixed plate are respectively arranged at both ends of the shell opening. A groove and a motor are arranged inside the first fixed plate. The sliding plate is arranged in the groove and can move left and right along the groove driven by the motor. The first clamping portion is connected to the sliding plate, and the second clamping portion is connected to the second fixed plate.

3. The diabetic foot wound detection and flushing device according to claim 2, characterized in that: The first clamping portion includes a first covering plate and a first clamping unit, the first clamping unit is in the shape of a hollow cylinder, and extends downward from the semicircular opening of the first covering plate to a set length, an inflatable airbag is arranged inside the first clamping unit, and an electric heating film is arranged inside the inflatable airbag, the second clamping portion includes a second covering plate and a second clamping unit, the second clamping unit is in the shape of a hollow cylinder, and extends downward from the semicircular opening of the second covering plate to the same length as that of the first clamping unit, an inflatable airbag is arranged inside the first clamping unit and the second clamping unit, and an electric heating film is arranged inside the inflatable airbag.

4. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The side scanning module comprises a first sealed shell, a first flip cover is arranged at the opening of the first sealed shell, a telescopic rod is arranged inside the first sealed shell, a scanning platform is arranged at the end of the telescopic rod, and a three-dimensional scanner is installed on the scanning platform.

5. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The photoelectric unit is cylindrical, and an illumination lamp, a first heating lamp and a first physiotherapy lamp are evenly arranged along the circumferential direction.

6. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The detection and therapy module includes a second sealed shell, which is a hollow rectangular structure. The opening of the second sealed shell is provided with a second flip cover. The interior of the second sealed shell is provided with a millimeter-wave radar detection array distributed along the length direction of the rectangular structure, and a therapy array is provided between the millimeter-wave radar detection arrays.

7. The diabetic foot wound detection and flushing device according to claim 6, characterized in that: The millimeter wave radar detection array includes a plurality of millimeter wave radar modules arranged along the length direction of the cuboid, and the physiotherapy array includes a second heating lamp and a second physiotherapy lamp arranged at intervals along the length direction of the cuboid.

8. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The waste liquid treatment module comprises a pump, which absorbs waste liquid generated by the diabetic foot wound detection and flushing device during the flushing and disinfection process through an absorption tube, and the pump transmits the absorbed waste liquid to the interior of the waste liquid treatment module through a release tube.

9. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The second air circulation module includes a first air channel, a second air channel and a third air channel, one end of the third air channel is connected to the first air channel and the second air channel, the other end of the third air channel is connected to the interior of the shell, and a third electric valve and a second fan are arranged in sequence from the inside to the outside, one end of the first air channel away from the third air channel is connected to oxygen, and an oxygen control seat is arranged, and a portable oxygen tank is plugged into the oxygen control seat, one end of the second air channel away from the third air channel is connected to the outside air, and a second filter module and a fourth electric valve are arranged in sequence from the inside to the outside.

10. The diabetic foot wound detection and flushing device according to claim 1, characterized in that: The first air circulation module includes an air passage connecting the outside and the inside of the shell, and a first electric valve, a first filter module, a first sterilization module, a first heating module, a first fan and a second electric valve are sequentially arranged in the air passage.

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