CN212679646U - High-power portable LED deep ultraviolet disinfection stick - Google Patents

High-power portable LED deep ultraviolet disinfection stick Download PDF

Info

Publication number
CN212679646U
CN212679646U CN202020725953.5U CN202020725953U CN212679646U CN 212679646 U CN212679646 U CN 212679646U CN 202020725953 U CN202020725953 U CN 202020725953U CN 212679646 U CN212679646 U CN 212679646U
Authority
CN
China
Prior art keywords
shell
control circuit
circuit board
light source
disinfection rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020725953.5U
Other languages
Chinese (zh)
Inventor
彭小静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Guangzhidun Technology Co ltd
Original Assignee
Shanghai Guangzhidun Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Guangzhidun Technology Co ltd filed Critical Shanghai Guangzhidun Technology Co ltd
Priority to CN202020725953.5U priority Critical patent/CN212679646U/en
Application granted granted Critical
Publication of CN212679646U publication Critical patent/CN212679646U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The utility model belongs to the technical field of ultraviolet disinfection, a high-power portable LED deep ultraviolet disinfection rod is disclosed, which comprises a disinfection rod body, wherein the disinfection rod body comprises a shell and an ultraviolet sterilization assembly arranged inside the shell, the ultraviolet sterilization assembly comprises a control circuit board, and a power supply assembly and an ultraviolet lamp group which are arranged on the control circuit board, the power supply assembly supplies power for the ultraviolet lamp group, the ultraviolet lamp group comprises a light source plate, the light source plate is connected with the control circuit board through a wire, and the light source plate is provided with a UVA-LED lamp and a UVC-LED lamp; the outer wall of the shell is provided with a light transmission device and a handheld driving device; a human body detection device and a voice prompt device are also arranged in the shell and are matched with the control circuit board; in conclusion, the integral disinfection rod has the advantages of good sterilization effect and reasonable structure, and the portability of the integral disinfection rod can be effectively improved by matching with the hand-held driving device.

Description

High-power portable LED deep ultraviolet disinfection stick
Technical Field
The utility model belongs to the technical field of ultraviolet ray disinfection, concretely relates to high-power portable LED deep ultraviolet ray disinfection stick.
Background
Along with the improvement of living standard and living quality of people, people pay more and more attention to health and hygiene, however, people inevitably contact with environments such as bacteria and viruses in life. Ultraviolet sterilization is to use physical method to generate ultraviolet radiation with different wave bands to damage and destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in organism cells of microorganisms (pathogens such as bacteria, viruses, spores and the like), so as to cause death of growing cells and/or death of regenerative cells, change biological activity, and prevent microorganisms from replicating and propagating to achieve the purpose of disinfection and sterilization. Through tests, the effective wavelength range of ultraviolet sterilization can be divided into four different wave bands: UVA (400-320 nm), UVB (320-280 nm), UVC (280-200 nm) and vacuum ultraviolet (200-10 nm). Wherein only UVA and part of UVB that are able to reach the earth's surface through the ozone protective layer and cloud layer. In terms of sterilization rate, UVC is within the microbial absorption range and can be sterilized within 1 second by destroying the DNA structure of the microbes, whereas UVA and UVB are outside the microbial absorption range and sterilization rate is slow, often requiring several hours to sterilize.
The ultraviolet rays of the existing commercial ultraviolet sterilizer products are emitted by quartz mercury lamps. The principle is that the mercury vapor with lower pressure is activated to emit ultraviolet light, and the two main emission lines are: one is 253.7nm wavelength; the other is 185nm wavelength. However, mercury lamps contain highly toxic mercury, and the product has been forced to be eliminated worldwide for a limited period of time according to international agreements, such as the regulations on hazardous substances, and if mercury leaks from the equipment, it can cause significant harm to the human body and the environment. Meanwhile, the ultraviolet ray with the wavelength of 185nm can generate ozone, thus being harmful to human health and environment; in addition, the existing ultraviolet sterilizer has complex structure, larger volume and inconvenient carrying.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high-power portable LED deep ultraviolet ray disinfection stick to solve current problem.
In order to achieve the above object, the utility model provides a following technical scheme: a high-power portable LED deep ultraviolet disinfection rod comprises a disinfection rod body, wherein the disinfection rod body comprises a shell and an ultraviolet sterilization assembly arranged in the shell, the ultraviolet sterilization assembly comprises a control circuit board, and a power supply assembly and an ultraviolet lamp group which are arranged on the control circuit board, the power supply assembly supplies power for the ultraviolet lamp group, the ultraviolet lamp group comprises a light source plate, the light source plate is connected with the control circuit board through a lead, and UVA-LED lamps and UVC-LED lamps are arranged on the light source plate;
the light transmitting device corresponds to the light source plate and is used for transmitting ultraviolet rays emitted by the UVA-LED lamp and the UVC-LED lamp; the handheld driving device comprises a handheld limiting part, a switch lock and a power key, and the switch lock and the power key are matched with the control circuit board and are used for realizing the on-off of the disinfection rod body;
still install human detection device and voice prompt device in the casing, all with the control circuit board cooperation, wherein: the human body detection device is used for detecting the distance between a human body and the disinfection rod body, and when the detected distance is smaller than a threshold value, the control circuit board closes the UVA-LED lamp and the UVC-LED lamp; the voice prompt device is used for voice broadcasting the working state of the disinfection rod body.
Preferably, the light transmission device comprises a light transmission window, a secondary optical reflector and a quartz glass sheet, wherein the light transmission window is arranged on the outer wall of one side of the shell, the quartz glass sheet is embedded in the light transmission window, the secondary optical reflector is arranged on the light source board and is matched with the UVA-LED lamps and the UVC-LED lamps, the number of the UVA-LED lamps (16) is 6-30, and the number of the UVC-LED lamps (17) is 6-28.
Preferably, the secondary optical reflector is one of a reflective bowl-type structure or a lens-type structure.
Preferably, the power supply assembly comprises a power supply and an electric quantity display device which are connected with each other, and a display end of the electric quantity display device penetrates through the shell and is used for displaying the residual electric quantity of the power supply.
Preferably, the electric quantity display device adopts one of nixie tube display or display screen display.
Preferably, the power supply adopts a rechargeable lithium battery, and one end of the shell is provided with a charging port for charging the power supply.
Preferably, the voice prompt device comprises a sound-emitting hole arranged on the shell and a loudspeaker arranged on the control circuit board, and the sound-emitting hole is matched with the sound-emitting end of the loudspeaker.
Preferably, the human body detection device comprises an induction hole formed in the shell and a human body infrared inductor arranged on the control circuit board, and the induction hole is matched with an infrared receiving end of the human body infrared inductor.
Preferably, the ultraviolet lamp set further comprises a light source board radiator, and the light source board radiator is mounted on the light source board.
Preferably, the housing comprises a lower shell, an upper shell, a left end cover and a right end cover which are mutually clamped.
Compared with the prior art, the utility model, following beneficial effect has:
(1) in the utility model, the UVA-LED lamp and the UVC-LED lamp are adopted for carrying out the common sterilization, which has the advantage of good sterilization effect, and the UVA-LED lamp and the UVC-LED lamp are arranged on the light source plate in parallel, so that the whole disinfection rod emits long-strip ultraviolet light spots, and the uniformity of the ultraviolet intensity in each part in the sterilization process is effectively improved; simultaneously, still have rational in infrastructure advantage, cooperate the handheld spacing part that sets up on the excellent shell of disinfection, can effectively improve the portability of whole disinfection stick.
(2) Aiming at the UVA-LED lamp and the UVC-LED lamp, the secondary optical reflectors are correspondingly arranged on the light source plate, so that the light emitting efficiency of ultraviolet rays is further improved, and the sterilization and disinfection effects of the whole disinfection rod are improved.
(3) Aiming at the utility model provides a disinfection stick still corresponds and is equipped with the switch lock to this makes the disinfection stick can form dual protection when the start, reduces the mistake machine opening probability of disinfection stick.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a rear view of the present invention;
FIG. 3 is an exploded view of the structure of the present invention;
in the figure: the device comprises a disinfection rod body, a light-transmitting window 2, an induction hole 3, a sound-raising hole 4, a switch lock 5, a charging port 6, a handheld limiting part 7, an electric quantity display device 8, a power key 9, a lower shell 10, an upper shell 11, a left end cover 12, a right end cover 13, a control circuit board 14, a human body infrared inductor 15, a UVA LED lamp 16, a UVC LED lamp 17, a secondary optical reflector 18, a quartz glass sheet 19, a power supply 20, a loudspeaker 21, a light source plate 22 and a light source plate radiator 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides the following technical solutions: a high-power portable LED deep ultraviolet disinfection rod comprises a disinfection rod body 1, wherein the disinfection rod body 1 comprises a shell and an ultraviolet sterilization assembly arranged in the shell, the ultraviolet sterilization assembly comprises a control circuit board 14, a power supply assembly and an ultraviolet lamp group, the power supply assembly and the ultraviolet lamp group are arranged on the control circuit board 14, the power supply assembly supplies power to the ultraviolet lamp group, the ultraviolet lamp group comprises a light source plate 22, the light source plate 22 is connected with the control circuit board 14 through a lead, and UVA-LED lamps 16 and UVC-LED lamps 17 are arranged on the light source plate 22;
the outer wall of the shell is provided with a light transmission device and a handheld driving device, the light transmission device corresponds to the light source plate 22 and is used for transmitting ultraviolet rays emitted by the UVA-LED lamp 16 and the UVC-LED lamp 17; the handheld driving device comprises a handheld limiting part 7, a switch lock 5 and a power key 9, and the switch lock 5 and the power key 9 are matched with the control circuit board 14 and are used for realizing the on-off of the disinfection rod body 1;
still install human detection device and voice prompt device in the casing, all with control circuit board 14 cooperation, wherein: the human body detection device is used for detecting the distance between a human body and the disinfection rod body 1, and when the detection distance is smaller than a threshold value, the control circuit board 14 turns off the UVA-LED lamp 16 and the UVC-LED lamp 17; the voice prompt device is used for voice broadcasting the working state of the disinfection rod body 1.
Specifically, the housing comprises a lower housing 10, an upper housing 11, a left end cap 12 and a right end cap 13 which are mutually clamped, and after the whole housing is combined, the length dimension of the housing is preferably 200-300 mm.
Based on the structure, the working principle and the using flow of the integral sterilizing lamp are as follows:
the hand-held limiting part 7 is held by hand, so that the carrying of the whole disinfection rod is realized; when the disinfection rod needs to be used, the disinfection rod body 1 is carried at a position needing disinfection, then the switch lock 5 is pressed, the power supply assembly is started at the moment, the whole disinfection rod body 1 is in a standby state, the power key 9 is pressed (for 1-2 seconds), starting up of the disinfection rod body 1 is achieved, the control circuit board 14 is started at the moment, the human body detection device detects people around the disinfection rod body 1 and feeds back the people to the control circuit board 14, and the control circuit board 14 controls the UVA-LED lamp 16 and the UVC-LED lamp 17 to be kept closed;
after the disinfection rod body 1 is started, the disinfection rod body 1 in the starting state is placed at a position needing disinfection, at the moment, a human body detection device does not detect people around the disinfection rod body 1, and then the control circuit board 14 is matched to turn on the UVA-LED lamp 16 and the UVC-LED lamp 17, so that starting disinfection of the disinfection rod body 1 is achieved.
After the disinfection is finished, the switch lock 5 is pressed (1-2 seconds), and then the disinfection rod body 1 can be shut down;
in addition, after the switch lock 5 is pressed, when the disinfection rod body 1 is not started within 30 seconds, the disinfection rod body 1 can be automatically shut down, so that the phenomenon that the disinfection rod body 1 is started by mistake is effectively avoided.
Above-mentioned, disinfection stick body 1 all cooperates the voice prompt device to carry out current operating condition's report when standby, start, disinfection work or shutdown to operating condition misjudgement's problem appears in the use in order to make whole disinfection stick body 1's use more convenient.
With specific regard to the hand-held limiting member 7:
in one embodiment, the protection sleeve may be a concave limiting groove or a convex protection sleeve, so as to ensure that when the user holds the disinfection rod body 1, friction is provided between the hand of the user and the disinfection rod body 1, so as to avoid the problem that the disinfection rod body 1 slides off.
In another embodiment, there may be a fixing hole, and a fixing rope may be threaded through the fixing hole, thereby realizing the hanging and carrying of the disinfection rod body 1.
Further, the light transmission device comprises a light transmission window 2, a secondary optical reflector 18 and a quartz glass sheet 19, wherein the light transmission window 2 is arranged on the outer wall of one side of the shell, the quartz glass sheet 19 is embedded in the light transmission window 2, the secondary optical reflector 18 is arranged on the light source plate 22 and is matched with the UVA-LED lamps 16 and the UVC-LED lamps 17, the number of the UVA-LED lamps (16) is 6-30, the emission wavelength is 390-shaped and 410nm, the number of the UVC-LED lamps (17) is 6-28, and the emission wavelength is 260-shaped and 280 nm. Specifically, adopt one of reflection of light bowl formula structure or lens formula structure about secondary optics reflector 18, can effectively improve ultraviolet light-emitting efficiency from this, and then guarantee the homogeneity of its intensity everywhere of whole disinfection stick body 1 when the transmission ultraviolet ray, improve the disinfection effect of disinfecting of whole disinfection stick.
Furthermore, the power supply assembly comprises a power supply 20 and an electric quantity display device 8 which are connected with each other, and a display end of the electric quantity display device 8 penetrates through the shell and is used for displaying the residual electric quantity of the power supply 20. The electric quantity display device 8 adopts one of digital tube display or display screen display, so that a user can know the available time of the whole disinfection rod in time, and the disinfection rod is more convenient in a portable use process.
Specifically, the power supply 20 adopts a rechargeable lithium battery, and one end of the casing is provided with a charging port 6 for charging the power supply 20; based on this, make whole disinfection stick can carry out used repeatedly.
Furthermore, the voice prompt device comprises a sound-emitting hole 4 arranged on the shell and a loudspeaker 21 arranged on the control circuit board 14, and the sound-emitting hole 4 is matched with the sound-emitting end of the loudspeaker 21, so that the requirement for timely voice broadcasting can be effectively met; in addition, when the power supply 20 is low, the voice prompt device can be used to prompt the user of low power.
Furthermore, the human body detection device comprises an induction hole 3 arranged on the shell and a human body infrared sensor 15 arranged on the control circuit board 14, and the induction hole 3 is matched with an infrared receiving end of the human body infrared sensor 15. Specifically, this human detection device judges whether there is the people around the excellent body 1 of disinfection through detecting human infrared ray, has the advantage that the low power dissipation, detection accuracy are high.
Furthermore, the ultraviolet lamp set further comprises a light source board radiator 23, and the light source board radiator 23 is installed on the light source board 22; therefore, the heat dissipation of the light source plate 22, the UVA-LED lamp 16 and the UVC-LED lamp 17 can be rapidly realized under the working state of the disinfection rod body 1, and the effect of prolonging the service life of the UVA-LED lamp 16 and the UVC-LED lamp 17 is further achieved.
(1) In the utility model, the UVA-LED lamp and the UVC-LED lamp are adopted for carrying out the common sterilization, which has the advantage of good sterilization effect, and the UVA-LED lamp and the UVC-LED lamp are arranged on the light source plate in parallel, so that the whole disinfection rod emits long-strip ultraviolet light spots, and the uniformity of the ultraviolet intensity in each part in the sterilization process is effectively improved; simultaneously, still have rational in infrastructure advantage, cooperate the handheld spacing part that sets up on the excellent shell of disinfection, can effectively improve the portability of whole disinfection stick.
(2) Aiming at the UVA-LED lamp and the UVC-LED lamp, the secondary optical reflectors are correspondingly arranged on the light source plate, so that the light emitting efficiency of ultraviolet rays is further improved, and the sterilization and disinfection effects of the whole disinfection rod are improved.
(3) Aiming at the disinfection rod in the utility model, a human body detection device and a voice prompt device are correspondingly arranged, wherein the human body detection device is used for detecting the distance between a human body and the disinfection rod so as to ensure the use safety of the whole disinfection rod and avoid influencing the human health; and the voice prompt device can broadcast the current working state of the disinfection rod in time so that the whole disinfection rod is more convenient to use.
(4) Aiming at the utility model provides a disinfection stick still corresponds and is equipped with the switch lock to this makes the disinfection stick can form dual protection when the start, reduces the mistake machine opening probability of disinfection stick.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a high-power portable LED deep ultraviolet ray disinfection stick, includes disinfection stick body (1), disinfection stick body (1) includes the casing and installs in the inside ultraviolet sterilization subassembly of casing, its characterized in that: the ultraviolet sterilization assembly comprises a control circuit board (14), and a power supply assembly and an ultraviolet lamp group which are arranged on the control circuit board (14), wherein the power supply assembly supplies power to the ultraviolet lamp group, the ultraviolet lamp group comprises a light source plate (22), the light source plate (22) is connected with the control circuit board (14) through a lead, and at least one UVA-LED lamp (16) and at least one UVC-LED lamp (17) are arranged on the light source plate (22) in parallel;
the outer wall of the shell is provided with a light transmission device and a handheld driving device, the light transmission device corresponds to the light source plate (22) and is used for transmitting ultraviolet rays emitted by the UVA-LED lamp (16) and the UVC-LED lamp (17); the handheld driving device comprises a handheld limiting part (7), a switch lock (5) and a power key (9), and the switch lock (5) and the power key (9) are matched with a control circuit board (14) and are used for realizing the on-off of the disinfection rod body (1);
still install human detection device and voice prompt device in the casing, all with control circuit board (14) cooperation, wherein: the human body detection device is used for detecting the distance between a human body and the disinfection rod body (1), and when the detected distance is smaller than a threshold value, the control circuit board (14) turns off the UVA-LED lamp (16) and the UVC-LED lamp (17); the voice prompt device is used for voice broadcasting the working state of the disinfection rod body (1).
2. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 1, characterized in that: the light transmission device comprises a light transmission window (2), a secondary optical reflector (18) and a quartz glass sheet (19), wherein the light transmission window (2) is arranged on the outer wall of one side of the shell, the quartz glass sheet (19) is embedded in the light transmission window (2), the secondary optical reflector (18) is installed on the light source plate (22) and matched with UVA-LED lamps (16) and UVC-LED lamps (17), the number of the UVA-LED lamps (16) is 6-30, and the number of the UVC-LED lamps (17) is 6-28.
3. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 2, characterized in that: the secondary optical reflector (18) is one of a reflective bowl-type structure or a lens-type structure.
4. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 1, characterized in that: the power supply assembly comprises a power supply (20) and an electric quantity display device (8) which are connected with each other, and a display end of the electric quantity display device (8) penetrates through the shell and is used for displaying the residual electric quantity of the power supply (20).
5. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 4, wherein: the electric quantity display device (8) adopts one of nixie tube display or display screen display.
6. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 4, wherein: the power supply (20) adopts a rechargeable lithium battery, and one end of the shell is provided with a charging port (6) for charging the power supply (20).
7. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 1, characterized in that: the voice prompt device comprises a sound-raising hole (4) formed in the shell and a loudspeaker (21) installed on the control circuit board (14), and the sound-raising hole (4) is matched with a sound-producing end of the loudspeaker (21).
8. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 1, characterized in that: the human body detection device comprises an induction hole (3) formed in the shell and a human body infrared inductor (15) arranged on the control circuit board (14), and the induction hole (3) is matched with an infrared receiving end of the human body infrared inductor (15).
9. The high-power portable LED deep ultraviolet disinfection rod as claimed in claim 1, characterized in that: the ultraviolet lamp bank further comprises a light source board radiator (23), and the light source board radiator (23) is installed on the light source board (22).
10. The high power portable LED deep ultraviolet disinfection stick of any one of claims 1-9, characterized in that: the shell comprises a lower shell (10), an upper shell (11), a left end cover (12) and a right end cover (13) which are mutually clamped.
CN202020725953.5U 2020-05-06 2020-05-06 High-power portable LED deep ultraviolet disinfection stick Active CN212679646U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020725953.5U CN212679646U (en) 2020-05-06 2020-05-06 High-power portable LED deep ultraviolet disinfection stick

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020725953.5U CN212679646U (en) 2020-05-06 2020-05-06 High-power portable LED deep ultraviolet disinfection stick

Publications (1)

Publication Number Publication Date
CN212679646U true CN212679646U (en) 2021-03-12

Family

ID=74886518

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020725953.5U Active CN212679646U (en) 2020-05-06 2020-05-06 High-power portable LED deep ultraviolet disinfection stick

Country Status (1)

Country Link
CN (1) CN212679646U (en)

Similar Documents

Publication Publication Date Title
US9623138B2 (en) Systems and methods for surface decontamination
CN109568613A (en) A kind of LED deep UV disinfecting instrument
CN111174120B (en) Portable sterilization device and manufacturing method thereof
CN111529727A (en) Deep ultraviolet LED disinfection lamp for kitchen and bathroom
CN210673822U (en) Flash disinfection box
CN212679646U (en) High-power portable LED deep ultraviolet disinfection stick
KR20030033475A (en) Battery charger having ultraviolet-sterilizer for mobile phone
CN210301782U (en) Portable deep ultraviolet LED appearance that disinfects
CN111330038A (en) Handheld rapid sterilization instrument and rapid sterilization method
CN213723718U (en) Portable quick sterilization instrument
CN111840595A (en) Electronic atomization device with disinfection function and accommodating box
CN212005237U (en) UVC ultraviolet ray disinfection flashlight
CN213884338U (en) Intelligent handheld ultraviolet disinfection lamp
CN214485111U (en) Hand-held ultraviolet disinfection device
CN212756504U (en) Handheld rapid sterilization instrument
CN211744535U (en) Casing structure with ultraviolet ray
CN212817264U (en) Ultraviolet sterilizer
CN213099599U (en) Deep ultraviolet LED disinfection lamp for kitchen and bathroom
CN215690096U (en) Sterilizer and disinfecting equipment
CN112472838A (en) Split type sterilizing and disinfecting device
CN212327004U (en) Portable deep ultraviolet LED sterilizer
CN217391206U (en) Fixed wavelength LED ultraviolet ray sterilization virus killing device
CN210750397U (en) Plate-shaped object disinfection device
CN214388277U (en) Split type sterilizing and disinfecting device
CN210169948U (en) Ultraviolet sterilization deodorization toilet lid is assisted to photocatalyst

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant