CN111298159A - Portable deep ultraviolet killing instrument - Google Patents

Abstract

The invention discloses a portable deep-ultraviolet sterilizing instrument, comprising a distance measuring device for detecting whether the distance between the object to be sterilized and the sterilizing lamp of the sterilizing instrument is within a preset distance range; a human body recognition device for recognizing a human face Whether to enter the irradiated area of the disinfection lamp of the sterilizer; the gravity sensing device is used to detect whether the sterilization lamp of the sterilizer is perpendicular to the object to be sterilized; the diameter of the irradiation area of the blue visible light is the same as the The diameter of the irradiation area of the disinfection lamp is equal; when the control circuit board receives that the face does not enter the irradiation area of the disinfection lamp of the disinfection instrument, the distance between the object to be disinfected and the disinfection lamp of the disinfection instrument is within the preset distance range And when the disinfection lamp of the disinfection instrument is perpendicular to the information of the object to be disinfected, the control circuit board controls the disinfection lamp to disinfect the object to be disinfected. The invention can protect people's faces from being hurt; the distance measuring device is also used to make the irradiation distance of the light emitted by the disinfection lamp accurate, and the disinfection effect is good.

Description

A portable deep ultraviolet sterilizer

technical field

The invention belongs to the technical field of virus disinfecting, in particular to a portable deep ultraviolet disinfecting instrument, especially a portable deep ultraviolet killing instrument used for disinfecting novel coronavirus.

Background technique

According to the "New Coronavirus Transmission Routes and Prevention Guidelines" drawn up by the National Health and Construction Commission, the transmission routes of the virus mainly include: direct or aerosol transmission: inhalation of droplets exhaled when an infected person coughs or sneezes, or aerosol formed by droplets Sol contact transmission: Droplets deposited on surfaces (such as desks or doorknobs) before touching the mouth, nose, or eyes In addition, the virus can also be spread by eating undercooked, diseased meat in close proximity to animals that carry the virus.

Therefore, in order to completely cut off the transmission route of the new coronavirus, it is necessary to do a good job of disinfection of items during the epidemic.

As a daily household disinfection equipment, ultraviolet lamps are a very good tool, including household tableware disinfection cabinets, etc., all of which have the shadow of ultraviolet lamps. Ultraviolet disinfection refers to the use of ultraviolet rays of appropriate wavelengths to destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in microbial cells, resulting in the death of growing cells and/or regenerative cells to achieve the effect of sterilization and disinfection. . What really has a bactericidal effect is UVC ultraviolet rays, because the C-band ultraviolet rays are easily absorbed by the DNA of the organism, especially the ultraviolet rays around 253.7nm.

The new coronavirus replicates through RNA, and the process of ultraviolet sterilization mainly acts on the nucleic acid (RNA) of the virus and destroys the protein layer of the virus, thereby affecting its survival and replication ability. This process is medically called "deactivation".

Regarding how to disinfect the new coronavirus, the new coronavirus belongs to the β genus of coronavirus. This virus is very sensitive to ultraviolet light and heat, that is, under ultraviolet radiation, or heating at a high temperature of 56 degrees for 30 minutes, the virus can be inactivated. At the same time, it can effectively inactivate the virus by 75% ethanol, chlorine-containing disinfectant, peracetic acid or fat-soluble solvents such as chloroform.

However, in the actual use process, it is found that disinfection with ethanol or 84 disinfectant is easy to cause secondary disasters due to incorrect operation methods, which is not suitable for ordinary household use; ultraviolet disinfection, which is also used to disinfect the new coronavirus, has become a daily routine. The main choice for life disinfecting.

According to different biological effects, ultraviolet rays are divided into four bands according to wavelength:

UVA (315~400nm): Long-wave ultraviolet rays, also known as "black light", represent the main ultraviolet rays in sunlight and are responsible for skin tanning. UVA is generally harmless and can be used to treat certain skin conditions. It is mostly used for UV curing, anti-counterfeiting detection, photocatalytic purification, skin tanning, etc.

UVB (280~315nm): It is a small part of sunlight, but it is dangerous to the human body. Most solar UVB is absorbed by the atmospheric ozone layer. Long-term exposure to UVB may be harmful to human eyes and skin, but it is beneficial for the production of vitamin D and the treatment of serious skin diseases, so it is mostly used in medical phototherapy.

UVC (200~280nm): Also known as short-wave ultraviolet or deep ultraviolet, unintentional overexposure can cause transient redness and eye irritation, but does not cause skin cancer or cataracts, and is mostly used for air, water, and surface purification.

UVD (<100nm): Also known as vacuum ultraviolet.

The traditional ultraviolet germicidal lamp tube is made of quartz glass. The mercury lamp can be divided into three types according to the difference of mercury vapor pressure in the lamp after lighting and the difference of ultraviolet output intensity, namely: low-pressure low-intensity mercury lamp, medium High pressure mercury lamps and low pressure high intensity mercury lamps.

Ultraviolet germicidal lamp (UV lamp) is actually a low-pressure mercury lamp. Like ordinary fluorescent lamps, ultraviolet germicidal lamps can use low-pressure mercury vapor (<10-2Pa) to be excited to emit ultraviolet rays; the difference is that the lamps of fluorescent lamps Ordinary glass is used, and the 253.7nm ultraviolet rays cannot penetrate, and can only be absorbed by the fluorescent powder on the inner wall of the lamp to excite visible light. If the composition and proportion of the fluorescent powder are changed, it can emit light of different colors that are usually seen. .

Generally, the lamps of germicidal lamps are made of quartz glass, because quartz glass has a high transmittance to all wavelengths of ultraviolet rays, and the transmittance can reach 80%-90%, which is the best material for germicidal lamps.

Because the UVC band of the ultraviolet mercury lamp is mainly concentrated in the two bands of 254nm and 185nm, because the mercury light source can only excite these two wavelengths with higher peaks. In the 185nm band, the photolysis effect of mercury ultraviolet rays and the effect of photogenerated ozone will appear. When sterilizing and disinfecting with a 185nm ultraviolet lamp, there will be photolysis and photogenerated ozone effects related to the sterilization efficiency of the wavelength of the light source itself, so there are It is difficult to distinguish whether the mercury lamp in the 185nm band is sterilized by light source, photolytic sterilization or photogenerated ozone sterilization. Therefore, the ultraviolet mercury lamp has the following disadvantages:

(1) Multi-band, but the power consumption is large, and the excess band generates heat energy;

(2) The service life is short, with an average life of 1000 hours;

(3) It needs to be preheated, and the peak value can be reached after lighting for 3 minutes;

(4) Harmful gas-ozone will be produced when working;

(5) The lamp tube contains mercury, and the waste lamp tube needs special treatment;

(6) High voltage excitation (up to 5000V) is used, which is dangerous.

Based on the above problems of UV mercury lamps, deep UV LEDs are often used to sterilize objects in the prior art. The birth of deep UV LEDs is a revolution in ultraviolet light sources. Compared with traditional mercury mercury lamps, deep UV LEDs have higher safety ( Low voltage, no ozone generation, no mercury), high efficiency (light intensity per unit area is more than 1000 times higher than mercury lamps), environmental protection (ultraviolet LED does not contain any toxic substances), energy saving, reliable (switching characteristics and service life two aspects )Etc;

From the perspective of the effective band of sterilization, the wavelength of deep ultraviolet LED is between 240nm-280nm, while the main ultraviolet wavelength of mercury lamp is 254nm, and the wavelength of deep ultraviolet LED is generally 275nm. Some studies have pointed out that the 265nm band is the most effective for sterilization. However, from practical research, the sterilization effects of 254nm and 275nm are in the same order of magnitude, no difference.

However, the deep ultraviolet LED disinfecting instrument in the prior art still has the following technical problems:

1. Large volume, inconvenient to carry;

2. When the human body is accidentally irradiated by the deep ultraviolet rays emitted by the deep ultraviolet LED, it will cause harm to the human body;

3. In addition, since the object to be sterilized is placed within a suitable distance from the deep ultraviolet LED, the best sterilization effect can be achieved, and the sterilization instrument in the prior art cannot judge the distance between the object to be sterilized and the deep ultraviolet LED. The distance of the LED can only be judged by the user's experience, so the object that cannot be accurately sterilized will be placed within the optimal irradiation distance of the deep ultraviolet LED, so the sterilization effect is not good and the object cannot be sterilized to the maximum extent.

SUMMARY OF THE INVENTION

The embodiment of the present invention provides a portable deep ultraviolet sterilizing instrument to solve at least one problem in the prior art.

The technical solution of the present invention is that the present invention provides a portable deep-ultraviolet disinfecting instrument, which comprises a ranging device, a deep-ultraviolet LED lamp, a blue visible light lamp, a human body identification device, a gravity sensing device and a control circuit board; in,

The distance measuring device is used to detect whether the distance between the object to be sterilized and the deep ultraviolet LED lamp is within a preset distance range;

The human body recognition device is used for collecting human face information to identify whether the human face enters the irradiation area of the deep ultraviolet LED lamp;

The gravity sensing device is used to detect whether the deep ultraviolet LED lamp is perpendicular to the object to be sterilized. Under normal circumstances, the object to be sterilized is placed horizontally, and the gravity sensing device can detect whether the deep ultraviolet LED lamp is perpendicular to the object. Level ground, the gravity sensing device is an optional part, and this function can be added or deleted according to the needs of different customers;

The diameter of the irradiation area of the blue visible light lamp is equal to the diameter of the irradiation area of the deep ultraviolet LED lamp, and the sterilization range of the deep ultraviolet LED lamp is determined according to the irradiation area of the blue visible light lamp;

The control circuit board is respectively connected with the distance measuring device, the deep ultraviolet LED lamp, the blue visible light lamp, the human body recognition device and the gravity sensing device;

When the control circuit board receives the information that the face does not enter the irradiation area of the deep ultraviolet LED lamp, the distance between the object to be disinfected and the deep ultraviolet LED lamp is within the preset distance range, and the deep ultraviolet LED lamp is perpendicular to the object to be disinfected When the information is received, the control circuit board controls the deep ultraviolet LED lamp to sterilize the object to be sterilized.

Further, the sterilizing instrument further includes a timing device, and the timing device starts timing when the control circuit board controls the deep ultraviolet LED lamp to sterilize the object to be sterilized;

When the disinfection time reaches a preset time period, the timing device sends a stop signal to the control circuit board, and the control circuit board controls the deep ultraviolet LED lamp to stop disinfection.

Further, the timing device is separately connected to the control circuit board or integrated on the control circuit board.

Further, there are multiple deep ultraviolet LED lamps, the irradiation areas of the multiple deep ultraviolet LED lamps are tangent or overlapping, and the blue visible light lamps are installed between the multiple deep ultraviolet LED lamps.

Further, the sterilizing instrument further includes a display screen, and the display screen is connected to the control circuit board, and is used for displaying prompt information that the sterilizing instrument can be turned on for disinfection.

Further, the sterilizing instrument further includes an outer casing, the outer casing is provided with a charging hole, the charging hole is connected with a power source, and an external charging device charges the power source through the charging hole.

Further, an on-off key is also provided on the outer casing. After pressing the on-off key, the power supply supplies power to the entire sterilizing apparatus to turn on the sterilizing apparatus.

Further, a switch protection device is also provided outside the switch key, and the switch protection device is used to prevent the user from turning on the disinfecting instrument by mistake.

Further, the outer casing is also provided with a USB interface, and the USB interface is used for charging the terminal electronic device.

Further, the material of the outer casing is a heat dissipation material.

Further, a retractable and adjustable adjusting device is also provided on the outer casing.

Further, the adjusting device includes an adjusting rod, a rotating sleeve and a spring;

The length of the adjusting rod is adjustable;

The rotating sleeve is rotatably installed in the outer casing; the adjusting rod can be pulled back and forth from the outer casing after being penetrated into the rotating sleeve; The first groove of the rotating sleeve passes through and starts to compress the spring and then rotates 90°, and the end of the adjusting rod is clamped into the second groove. At this time, the adjusting rod in the outer casing is pulled out and is firmly connected to the rotating sleeve;

A rotary drive device of the rotary sleeve is arranged in the outer casing, and the rotary drive device is connected with the control circuit board;

An angle adjustment button is arranged on the outer end of the adjustment rod, and the angle adjustment button is connected with the control circuit board;

The disinfecting instrument further includes a sound prompting device, and the sound prompting device is connected with the control circuit board;

When it is necessary to sterilize objects beyond the operating range or operating space, disable the gravity sensing device, first pull out the adjusting rod from the outer casing, and then rotate the adjusting rod 90° after the adjusting rod compresses the spring, and the adjusting rod is snapped into rotation In the groove of the sleeve, the sterilizing instrument is initially aimed at the object to be sterilized, and the control circuit board judges whether to start sterilization according to the distance measuring device and the human body recognition device and emits a sound through the sound prompt device. If the sterilization does not start, Then press the angle adjustment button to control the rotary drive device to rotate the rotary sleeve or adjust the length of the adjustment rod until the sound prompt device generates a sound prompt to start disinfection.

Further, the rotation driving device is a micro motor.

Further, the sound prompting device is a miniature speaker.

The advantages of the present invention are:

The disinfecting instrument of the invention is small in size, flexible in design and convenient in installation, and can be applied in a narrow space where the traditional ultraviolet mercury lamp cannot be applied;

In addition, the use of deep ultraviolet LED lamps to sterilize objects makes the sterilization process more convenient, the sterilization is thorough, and it is environmentally friendly and pollution-free;

The present invention utilizes the human body identification device and the gravity sensing device to protect the face from injury and is safer for the human body; the present invention also utilizes the distance measuring device to make the irradiation distance of the deep ultraviolet rays emitted by the deep ultraviolet LED lamp accurate and the disinfection effect to be maximized good.

Description of drawings

Fig. 1 is the perspective structure schematic diagram of a kind of portable deep ultraviolet sterilizing instrument provided by the embodiment of the present invention;

Fig. 2 is the outline structure schematic diagram of a kind of portable deep ultraviolet sterilizing instrument provided by the embodiment of the present invention;

3 is a schematic diagram of the positional relationship between a deep ultraviolet LED lamp and a blue visible light lamp provided by an embodiment of the present invention;

4 is a schematic diagram of the positional relationship between a deep ultraviolet LED lamp and a blue visible light lamp provided by another embodiment of the present invention;

5 is a schematic structural diagram of a regulating device for a portable deep ultraviolet sterilizing instrument provided by an embodiment of the present invention;

Fig. 6 is A-A sectional view in Fig. 5;

Fig. 7 is B-direction view in Fig. 6;

8 is a schematic structural diagram of an adjustment rod of a portable deep ultraviolet sterilizing instrument provided by another embodiment of the present invention;

Among them, 1- distance measuring device; 2- deep ultraviolet LED lamp; 3- blue visible light lamp; 4- human body recognition device; 5- switch protection device; 6- switch key; 7- display screen; 8- outer shell; 9 -USB interface; 10-charging hole; 11-gravity sensor; 12-control circuit board; 13-power supply; 14-adjustment lever; 15-rotating sleeve; 16-spring; 17-miniature motor;

Detailed ways

The present invention will be described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments do not limit the present invention. Equivalent transformations or substitutions all fall within the protection scope of the present invention.

Compared with other sterilization methods such as chlorination, ozone and UV mercury lamp sterilization, deep ultraviolet LED sterilization has the following advantages;

Table 1

Efficient sterilization: As shown in Table 1, the UVC segment ultraviolet light emitted by the deep ultraviolet LED lamp generally kills bacteria and viruses within a few seconds. Traditional water sterilization methods such as chloride and ozone can achieve deep ultraviolet sterilization. Efficiency generally takes 20 minutes to 1 hour;

Extensive sterilization: Since microorganisms such as bacteria and virus antigens are not resistant to ultraviolet light, ultraviolet light can efficiently kill almost all bacteria and viruses, and the sterilization ability of deep ultraviolet LED lamps can also be used to a certain extent. Inhibit the growth of some higher aquatic organisms, such as algae, red worms, paramecia, etc.;

Safety and environmental protection (mercury-free): Compared with the mercury-excited UV lamps currently on the market, the most obvious advantage of the deep-UV LED lamp is that the germicidal light source of the deep-UV LED lamp does not contain mercury; and mercury is a heavy metal substance, commonly known as mercury. It can be evaporated at room temperature. Mercury vapor and mercury compounds are highly toxic (chronic). In the sterilization process of traditional ultraviolet mercury lamps, once the lamp tube is broken, it will cause serious water pollution. Deep ultraviolet LED lamps are a safe Reliable device, no heavy metals, simple operation, safe and reliable operation; energy saving, long life, low maintenance cost: deep ultraviolet LED sterilizer is gradually replacing the mercury lamp ultraviolet sterilizer commonly used in the market. The power consumption of deep UV LED is about one tenth of that of mercury lamps, which is a great cost saving ratio.

Regarding how to disinfect the new coronavirus, the new coronavirus belongs to the β genus of coronavirus. This virus is very sensitive to ultraviolet light and heat, that is, under ultraviolet radiation, or heating at a high temperature of 56 degrees for 30 minutes, the virus can be inactivated. At the same time, it can effectively inactivate the virus by 75% ethanol, chlorine-containing disinfectant, peracetic acid or fat-soluble solvents such as chloroform.

However, in the actual use process, it is found that disinfection with ethanol or 84 disinfectant is easy to cause secondary disasters due to incorrect operation methods, which is not suitable for ordinary household use; ultraviolet disinfection, which is also used to disinfect the new coronavirus, has become a daily routine. The main choice for life disinfecting.

A specific example will be given below to illustrate the specific structure and working process of the portable sterilizing instrument for sterilizing viruses.

Fig. 1, Fig. 2 are respectively the perspective structure schematic diagram and the outline structure schematic diagram of a kind of portable deep ultraviolet sterilization instrument provided by the embodiment of the present invention, this portable deep ultraviolet sterilization instrument comprises: distance measuring device 1, deep ultraviolet LED lamp 2, The blue visible light lamp 3, the human body recognition device 4, the gravity sensing device 11 and the control circuit board 12; wherein,

The distance measuring device 1 is used to detect whether the distance between the object to be sterilized and the deep ultraviolet LED lamp 2 is within a preset distance range;

The human body recognition device 4 is used to collect human face information to identify whether the human face enters the irradiation area of the deep ultraviolet LED lamp 2;

The gravity sensing device 11 is used to detect whether the deep ultraviolet LED lamp 2 is perpendicular to the object to be sterilized. It should be noted that the object to be sterilized in daily life is placed horizontally on the ground, so the gravity sensing device 11 detects If the deep ultraviolet LED lamp 2 is perpendicular to the horizontal ground, it is considered that the irradiation light of the deep ultraviolet LED lamp 2 is vertically irradiated to the object to be sterilized; in view of the fact that the object to be sterilized will not be placed horizontally on the ground or be sterilized in life. When the shape of the object to be sterilized is irregular, the portable deep ultraviolet sterilizer cannot be used, and the gravity sensing device 11 is used as an optional function of the portable deep ultraviolet sterilizer, which can be set according to the different needs of different customers;

The diameter of the irradiation area of the blue visible light LED lamp 3 is equal to the diameter of the irradiation area of the deep ultraviolet LED lamp 2; the sterilization range of the deep ultraviolet LED lamp 2 is determined according to the irradiation area of the blue visible light lamp;

The control circuit board 12 (for example, a single-chip microcomputer) is respectively connected with the distance measuring device 1, the deep ultraviolet LED lamp 2, the blue visible light lamp 3, the human body recognition device 4 and the gravity sensing device 11;

When the control circuit board 12 receives the information that the face does not enter the irradiation range of the deep ultraviolet LED lamp 2, the distance between the object to be sterilized and the deep ultraviolet LED lamp 2 is within the preset distance range, and the deep ultraviolet LED lamp 2 is vertical When the information of the object to be sterilized is received, the control circuit board 12 controls the deep ultraviolet LED lamp 2 to sterilize the object to be sterilized.

In one embodiment, the specific structure of the portable sterilizing instrument for sterilizing viruses includes: an outer casing 8 and a control circuit board 12; wherein, the distance measuring device 1, the deep ultraviolet LED lamp 2, the blue visible light lamp 3. The human body recognition device 4, the display screen 7, and the gravity sensing device 11 are respectively connected to the control circuit board 12;

The distance measuring device 1 , the deep ultraviolet LED lamp 2 , the blue visible light lamp 3 and the human body identification device 4 are arranged in sequence on one side of the outer casing 8 ; the blue visible light lamp 3 is located between the two deep ultraviolet LED lamps 2 , and the diameter of the irradiation area of the blue visible light lamp 3 is equal to the diameter of the irradiation area of all the deep ultraviolet LED lamps 2; the gravity sensing device 11 and the power supply 13 are arranged in the outer casing 8; preferably, the blue visible light lamp 3 The distance from each deep ultraviolet LED lamp 2 is equal (that is, the blue visible light lamp 3 is located in the middle of the two deep ultraviolet LED lamps 2);

A charging hole 10 is also provided on the other side of the outer casing 8, the charging hole 10 is connected to the power source 13, and an external charging device can be connected to charge the power source 13 through the charging hole 10;

A switch key 6 is provided on the upper part of the outer casing 8, and the switch key 6 is connected to the power supply 13. After pressing the switch key 6, the power supply 13 supplies power to the entire sterilizing instrument to turn on the disinfection of the object to be sterilized; the display screen 7 is used to display the prompt information that the sterilizer can be sterilized.

Preferably, a switch protection device 5 is also provided outside the switch key 6. In this embodiment, the switch protection device 5 is a protection cover, and the protection cover can prevent the user from touching the sterilizing device when not in use. Switch key 6; generally, before using the disinfecting device, you can slide the protective cover down to reveal the switch key 6 and then press the switch key 6, the disinfecting device will start; if the disinfecting device is not used, Then, the protective cover can be slid upwards to protect the switch key 6 to avoid misoperation by the user.

Optionally, the disinfecting instrument further includes a timing device. The timing device can be integrated on the control circuit board 12 or can be connected to the control circuit board 12 independently. When the information entering the irradiation range of the deep ultraviolet LED lamp 2, the information that the object to be sterilized is within a preset distance range, and the information that the deep ultraviolet LED lamp 2 is perpendicular to the object to be sterilized, the control circuit board 12 controls the The deep ultraviolet LED lamp 2 sterilizes the object to be sterilized; at the same time, the timing device starts timing, and when the sterilization time reaches a preset time period (for example, the preset time period can be 20s), the timing device sends a message to the control circuit board 12 After sending a stop signal, the control circuit board 12 controls the deep ultraviolet LED lamp 2 to stop sterilizing the object to be sterilized.

In this embodiment, when the distance measuring device 1 detects that the object to be sterilized is within a preset distance range, the face does not enter the irradiation range of the deep ultraviolet LED lamp 2, and the deep ultraviolet LED lamp 2 is perpendicular to the direction of the object to be sterilized When the information is displayed, the display screen 7 displays the information that can be sterilized, and at the same time starts the timing device, the timing device can start timing, and the sterilizer stops sterilization after reaching the preset time period; it should be noted that, preferably, The display screen 7 is also provided with a reset button, and the reset button is used to start the next sterilization operation of the sterilizer.

Optionally, the outer casing 8 is provided with a charging hole 10 through which the power source 13 can be charged; preferably, the power source 13 is a rechargeable battery.

Optionally, the outer casing 8 is also provided with a USB interface 9, the USB interface 9 is connected with the power supply 13, and the USB interface 9 can be connected with a terminal electronic device (such as a mobile phone, a PAD, etc.), so as to conveniently The terminal electronic equipment is charged.

Optionally, the ranging device 1 in this embodiment is an infrared range finder.

Because the deep ultraviolet LED lamp 2 must place the object to be sterilized within a preset distance range, the object can be better sterilized. If the object to be sterilized exceeds the preset distance range, the sterilization of the sterilization instrument The effect is not good, therefore, it is necessary to use the distance measuring device 1 to detect whether the object to be sterilized is within the preset distance range, so that the object to be sterilized is always kept at the most effective distance for sterilization by the deep ultraviolet LED lamp 2; preferably, so The distance between the deep ultraviolet LED lamp 2 and the object to be sterilized is 2-5 cm.

The gravity sensing device 11 in this embodiment can ensure that the deep ultraviolet LED lamp 2 is only perpendicular to the object to be sterilized, which is one of the necessary conditions for the sterilizer to sterilize the object to be sterilized.

In order to prevent unexpected situations, this embodiment uses the human body recognition device 4 (the human body recognition device 4 can be, for example, a camera) to realize face recognition. 4 After collecting the information of the face, the sterilizer will be powered off immediately to stop the disinfection work to protect the face, especially the eyes.

Since the deep ultraviolet rays emitted by the deep ultraviolet LED lamp 2 are invisible, the sterilization range of the deep ultraviolet rays cannot be judged. Therefore, in this embodiment, a blue visible light lamp 3 is also provided in the sterilization instrument; wherein, the blue visible light lamp 3 The diameter of the irradiation area is the same as the diameter of the irradiation area of the deep ultraviolet LED lamp 2, so that the irradiation area of the blue visible light lamp 3 can be used to determine the deep ultraviolet sterilization range of the deep ultraviolet LED lamp 2;

Referring to FIG. 3 , in one embodiment, the disinfecting instrument includes two deep ultraviolet LED lamps 2 , the irradiation areas of the two deep ultraviolet LED lamps 2 are tangent, and a blue light is installed in the middle of the two deep ultraviolet LED lamps 2 Color visible light lamp 3, and the diameter of the irradiation area of the blue visible light lamp 3 is equal to the diameter of the irradiation area of the two deep ultraviolet LED lamps 2, that is, the irradiation range of the blue visible light lamp 3 is two deep ultraviolet LED lamps. 2 sterilization range, so that the 2 deep ultraviolet LED lamps 2 can be determined by judging the irradiation area of the blue visible light lamp 3;

In another embodiment, referring to FIG. 4 , the sterilizing apparatus may also include two deep ultraviolet LED lamps 2 , and the irradiation areas of the two deep ultraviolet LED lamps 2 overlap to obtain overlapping irradiation areas. A blue visible light lamp 3 is installed in the middle of the ultraviolet LED lamp 2, and the diameter of the irradiation area of the blue visible light lamp 3 is equal to the diameter of the overlapping irradiation area, so that the two can be determined by judging the irradiation area of the blue visible light lamp 3. The sterilization range of a deep ultraviolet LED lamp 2.

Since the deep ultraviolet LED lamp 2 will generate heat when working, the outer casing 8 in this embodiment can be made of a heat-dissipating material, so as to ensure that the disinfecting instrument can work stably; preferably, the material of the outer casing 8 is made of aluminum Metal.

The working process of the portable deep ultraviolet LED disinfecting instrument of the present embodiment is described below by taking an infrared range finder, a camera, and a gravity sensor as examples;

Open the protective cover on the portable deep ultraviolet LED sterilizer, turn on the switch key 6, and aim the infrared rangefinder at the object to be sterilized. When the camera recognizes that the face is not within the irradiation range of the deep ultraviolet LED lamp 2, the infrared When the infrared rays of the rangefinder sense the optimal sterilization distance (that is, the distance between the object to be sterilized and the deep ultraviolet LED lamp 2 is within the preset distance range) and the gravity sensor detects that the deep ultraviolet LED lamp 2 is perpendicular to the horizontal ground , then the display screen 7 displays the prompt information that can be sterilized, and at the same time starts the timing device, the sterilization device enters the timing mode, when the disinfection time enters the countdown, after the timing device reaches the preset time period, the sterilization device automatically stops sterilization ; It should be noted that if it is necessary to sterilize again, you can press the reset button on the display screen 7 to sterilize the object to be sterilized again.

In actual use, some inconvenient positions will be encountered, such as corners with a depth of more than one meter or a height that exceeds the normal operating distance or the shape of the corner is not a regular shape. The problem that the angle cannot be adjusted, so in order to solve the above technical problems, an adjustment device that can be retracted and adjusted is provided on the disinfecting instrument.

As shown in FIG. 5 , the adjusting device includes an adjusting rod 14 , a rotating sleeve 15 and a spring 16 ; the adjusting device can be built into the outer casing 8 or arranged outside the outer casing 8 .

The length of the adjusting rod 14 can be adjusted; as shown in FIG. 8 , the adjusting rod 14 is made into a split type, the split parts are connected by threads, and the length of the adjusting rod 14 can be adjusted by rotating the threaded fitting part. The adjustment amount of twice the length of the thread is realized; preferably, the adjustment rod 14 can be made into a multi-layer split type, so that the adjustment amount of the sum of the length of each thread can be realized.

The rotating sleeve 15 is rotatably installed in the outer casing 8 , specifically, arranged at the end of the outer casing 8 ; the adjusting rod 14 can be pulled back and forth from the outer casing 8 after passing through the rotating sleeve 15 . ; When the adjusting rod 14 is pulled out from the outer casing 8, the end of the adjusting rod 14 first passes through the first layer groove of the rotating sleeve 15 and starts to compress the spring 16 and then rotates 90°, and the end of the adjusting rod 14 is snapped into In the second layer of grooves, the adjusting rod 14 in the outer casing 8 is pulled out and the rotating sleeve 15 is firmly connected to form a whole.

As shown in FIG. 7 , the adjusting rod 14 is provided with a boss at the end extending into the outer casing 8 , and the boss has an outer circular shape as a whole. Viewed from the end of the rod 14, the end is in the shape of two opposite sides of a straight line and two opposite sides of a circular arc; as shown in Figure 6, the rotating sleeve 15 is firstly provided at the end with a boss adapted to the end of the adjusting rod 14. The first layer of grooves is provided with a circular ring groove below the groove, and the boss of the adjusting rod 14 can rotate in the circular ring groove. A second layer of grooves matching the bosses is provided at the position, and the first layer of grooves and the second layer of grooves must not communicate with each other.

After use, when the adjusting rod 14 is to be inserted into the outer casing 8, the adjusting rod 14 should be compressed downward on the spring 16 first, and then rotated 90°, and the boss at the end of the adjusting rod 14 will pass through the groove of the first layer. ; Preferably, a guide groove for the adjustment rod 14 is provided in the outer casing 8, as shown in the embodiment shown in FIG. 5, the end of the boss of the adjustment rod 14 is provided with a chamfer, and the guide groove in the outer casing 8 is also provided with a slope, The boss of the adjusting rod 14 is initially positioned by the inclined plane, and then inserted into the outer casing 8 through the cooperation between the boss plane and the guide groove.

A hole is provided in the center of the adjusting rod 14, which is used to pass the cable.

A rotary drive device of the rotating sleeve 15 is arranged in the outer casing 8, and the rotary drive device is connected with the control circuit board 12; the rotary drive device is a micro motor or a micro motor plus gear transmission, and the micro motor is fixedly installed in the outer casing 8 .

The shafts at both ends of the rotating sleeve 15 are fixedly connected to the outer casing 8 through rotatable elements such as bearings or shaft sleeves, and one end of the rotating sleeve 15 is connected to the rotating drive device.

An angle adjustment button 18 is provided at the outer end of the adjustment rod 14, and the angle adjustment button 18 is connected to the control circuit board 12; The holes 15 are matched with each other. When the adjustment rod 14 is retracted into the outer casing 8 , the end of the adjustment rod 14 can seal the outer casing 8 .

The disinfecting instrument further includes a voice prompting device, and the voice prompting device is connected to the control circuit board 12;

When it is necessary to sterilize objects beyond the operating range or operating space, disable the gravity sensing device 11. Considering the influence of the gravity sensing device 11, the sterilizer can be set to two modes: one is the normal mode, with distance measurement , face recognition and gravity sensing functions, which are used in ordinary scenes in daily life, and the disinfecting instrument needs to be aimed at objects on a horizontal plane; the other is a special mode, that is, the one mentioned in this embodiment is used to exceed the operating range or operating space. For restricted objects, you need to disable the gravity sensing function at this time, and then adjust the spatial position of the disinfecting instrument;

First, the adjusting rod 14 is pulled out from the outer casing 8, and the adjusting rod 14 is rotated 90° after the adjusting rod 14 compresses the spring 16. The adjusting rod 14 is inserted into the groove of the rotating sleeve 15, and the sterilizing instrument is initially aligned. For the object to be sterilized, the control circuit board 12 judges whether to start sterilization according to the distance measuring device 1 and the human body identification device 4 and emits a sound through the sound prompt device. The device rotates the rotating sleeve 15, and if the length is insufficient, you can extend the arm or adjust the length of the adjusting rod 14. When the appropriate position is adjusted, the voice prompting device will generate a voice prompt for disinfection.

Optionally, the sound prompting device is a miniature speaker.

The present invention has the following advantages:

The disinfecting instrument of the invention is small in size, flexible in design and convenient in installation, and can be applied in a narrow space where the traditional ultraviolet mercury lamp cannot be applied;

In addition, the use of deep ultraviolet LED lamps to sterilize objects makes the sterilization process more convenient, the sterilization is thorough, and it is environmentally friendly and pollution-free;

The present invention utilizes the human body identification device and the gravity sensing device to protect the face from injury and is safer for the human body; the present invention also utilizes the distance measuring device to make the irradiation distance of the deep ultraviolet rays emitted by the deep ultraviolet LED lamp accurate and the disinfection effect to be maximized good.

Those skilled in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in the embodiments of the present invention can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

In the embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. A portable deep-ultraviolet disinfecting instrument comprising a ranging device, a deep-ultraviolet LED lamp, a blue visible light lamp, a human body identification device and a control circuit board; wherein, The distance measuring device is used to detect whether the distance between the object to be sterilized and the deep ultraviolet LED lamp is within a preset distance range; The human body recognition device is used for collecting human face information to identify whether the human face enters the irradiation area of the deep ultraviolet LED lamp; The diameter of the irradiation area of the blue visible light lamp is equal to the diameter of the irradiation area of the deep ultraviolet LED lamp, and the sterilization range of the deep ultraviolet LED lamp is determined according to the irradiation area of the blue visible light lamp; The control circuit board is respectively connected with the distance measuring device, the deep ultraviolet LED lamp, the blue visible light lamp and the human body identification device; When the control circuit board receives the information that the face does not enter the irradiation area of the deep ultraviolet LED lamp and the distance between the object to be sterilized and the deep ultraviolet LED lamp is within a preset distance range, the control circuit board controls the deep ultraviolet LED lamp. Ultraviolet LED lights sterilize objects to be sterilized. 2. The sterilizing instrument according to claim 1, characterized in that, the sterilizing instrument further comprises a timing device, and when the control circuit board controls the deep ultraviolet LED lamp to sterilize the object to be sterilized, the timing device start the timer; When the disinfection time reaches a preset time period, the timing device sends a stop signal to the control circuit board, and the control circuit board controls the deep ultraviolet LED lamp to stop disinfection; The timing device is separately connected to the control circuit board or integrated on the control circuit board. 3. The sterilizing apparatus according to claim 1, characterized in that, there are a plurality of deep ultraviolet LED lamps, and the irradiation areas of the plurality of deep ultraviolet LED lamps are tangent or overlapped, and the plurality of deep ultraviolet LED lamps have irradiated areas. Install the blue visible light lamp between. 4 . The sterilizing instrument according to claim 1 , wherein the sterilizing instrument further comprises an outer casing, the outer casing is provided with a charging hole, the charging hole is connected with a power source, and an external charging device passes through the charging hole charge the power source; The outer casing is also provided with an on-off key, and after pressing the on-off key, the power supply supplies power to the entire sterilizing instrument to turn on the sterilizing instrument; The outer casing is also provided with a USB interface, and the USB interface is used for charging the terminal electronic device. 5 . The sterilizing instrument according to claim 4 , wherein a switch protection device is further provided outside the switch key, and the switch protection device is used to prevent the user from accidentally turning on the sterilizing instrument. 6 . 6. The sterilizing instrument according to claim 4 or 5, wherein the material of the outer casing is a heat-dissipating material. 7 . The sterilizing instrument according to claim 4 , wherein a retractable and adjustable adjusting device is further provided on the outer casing. 8 . 8. The sterilizing instrument according to claim 7, wherein the adjusting device comprises an adjusting rod, a rotating sleeve and a spring; The length of the adjusting rod is adjustable; The rotating sleeve is rotatably installed in the outer casing; the adjusting rod can be pulled back and forth from the outer casing after being penetrated into the rotating sleeve; The first groove of the rotating sleeve passes through and starts to compress the spring and then rotates 90°, and the end of the adjusting rod is clamped into the second groove. At this time, the adjusting rod in the outer casing is pulled out and is firmly connected to the rotating sleeve; A rotary drive device of the rotary sleeve is arranged in the outer casing, and the rotary drive device is connected with the control circuit board; An angle adjustment button is arranged on the outer end of the adjustment rod, and the angle adjustment button is connected with the control circuit board; The disinfecting instrument further includes a sound prompting device, and the sound prompting device is connected with the control circuit board; When it is necessary to sterilize objects beyond the operating range or operating space, first pull out the adjusting rod from the outer casing, pull the adjusting rod to compress the spring, and then rotate the adjusting rod 90°. The sterilization instrument is initially aimed at the object to be sterilized, and the control circuit board judges whether to start sterilization according to the distance measuring device and the human body identification device and emits a sound through the sound prompt device. If the sterilization does not start, press the angle adjustment button Sterilize by controlling the rotating drive device to rotate the rotating sleeve or adjusting the length of the adjusting rod until the sound prompting device produces a sound prompt. 9 . The sterilizing instrument according to claim 8 , wherein the rotary drive device is a micro-motor. 10 . 10 . The sterilizing instrument according to claim 8 , wherein the sound prompting device is a miniature speaker. 11 .

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