阅读说明：本技术 用于公共空间的呼吸带消杀新冠病毒的移动机器人 (A mobile robot that is used for respiratory zone of public space to kill new coronavirus ) 是由 陈卓 于书萌 刘星宇 傅圣雪 马良志 周怡 夏子晗 于 2020-12-31 设计创作，主要内容包括：本发明属于公共卫生及防疫技术领域。针对现有的杀毒装置无法有效净化呼吸带的问题,本发明提供一种用于公共空间的呼吸带消杀新冠病毒的移动机器人,它包括：智能移动平台、出风装置、伸缩机构、杀菌装置以及隔离伞,通过进风口在呼吸带内上下移动和移动平台在水平面内沿规划路径对呼吸带进行全平面扫描,从而完成对大型公共空间呼吸带不间断的全透析式的杀毒。(The invention belongs to the technical field of public health and epidemic prevention. Aiming at the problem that the existing antivirus device can not effectively purify the respiratory belt, the invention provides a mobile robot for disinfecting and killing new coronavirus in the respiratory belt of a public space, which comprises: the intelligent moving platform, the air outlet device, the telescopic mechanism, the sterilizing device and the isolating umbrella move up and down in the breathing zone through the air inlet and the moving platform performs full-plane scanning on the breathing zone along a planned path in a horizontal plane, so that uninterrupted full-dialysis sterilization of the breathing zone in a large public space is completed.)

1. A mobile robot for killing new corona viruses in a respiratory zone of a public space, comprising:

the intelligent mobile platform is provided with an ultrasonic distance measurement and obstacle avoidance steering wheel at the bottom, a lithium battery pack, a motor, an ultrasonic obstacle avoidance and distance measurement system and an intelligent control chip are arranged in the intelligent mobile platform, and the motor drives the ultrasonic distance measurement and obstacle avoidance steering wheel;

the air outlet device is arranged on the intelligent mobile platform and comprises a first shell, an air outlet is formed in the side wall of the first shell, and a centrifugal fan is arranged inside the first shell;

the sterilizing device comprises a third shell in an inverted round platform shape, the top of the third shell is sealed, an air inlet is formed in the side wall, a through hole is formed in the bottom of the third shell, two layers of high-voltage discharging grids are arranged below the inner air inlet, grids of the two layers of high-voltage discharging grids are arranged in a staggered mode, and metal micro-needles are arranged on the opposite surfaces of the high-voltage discharging grids; an ultraviolet lamp is arranged at the air inlet and irradiates a high-voltage discharge grid;

the telescopic mechanism is arranged between the air outlet device and the sterilizing device and comprises a second shell, a corrugated pipe and an electric push rod, the second shell is fixedly arranged on the first shell, a through hole is formed in the top of the second shell and is in sealing connection with one end of the corrugated pipe, the other end of the corrugated pipe is in sealing connection with a through hole in the bottom of the third shell, the electric push rod is arranged in the shell, and the tail end of the push rod of the electric push rod is fixedly connected with the bottom of the sterilizing device;

and the isolating umbrella with the downward opening is fixedly arranged at the top of the sterilizing device.

2. The mobile robot for killing new coronavirus through the respiratory belt in public space as claimed in claim 1, wherein the ultrasonic ranging obstacle avoidance steering wheel is driven by a stepping motor.

3. The mobile robot for killing new corona virus by using the respiratory belt in the public space as claimed in claim 1, wherein the sterilizing device is under the action of the electric push rod, and the height range from the ground covers the range of the respiratory belt.

4. The mobile robot for killing new corona viruses by using the respiratory belt for public spaces as claimed in claim 1, wherein an ultrasonic position response sensor is disposed on a side wall of the second housing.

Technical Field

The invention belongs to the technical field of public health and epidemic prevention, and particularly relates to a mobile robot for killing new coronavirus in a respiratory zone of a public space.

Background

Although the mask is worn in public spaces such as supermarkets, schools, restaurants and stations, social distance keeping measures and the like can effectively prevent the spread of viruses at present, in practical situations, people who gather in the public spaces are difficult to keep safe social distance no matter calling and management measures are taken in the repeated work and production. It is also possible for the new coronavirus to attach to the aerosol and move in space. Once the virus falls on an article which is frequently touched by people, or when special conditions such as taking off a mask occasionally and doing activities such as drinking water and eating are met, the virus is just in a respiratory belt of a human body, so that the virus enters the body through a respiratory system, and the risk of infection is generated.

According to the related research, the height of the human breathing air layer ranges from 1.3 m to 1.8m, and the human breathing air layer is called a breathing zone. Air purifiers and air conditioning products with disinfection and sterilization functions, which are currently marketed, can only be placed at a certain fixed position indoors, and have limited control effect on surrounding air, particularly a breathing belt. Part of the movable sterilization devices only move horizontally, the air suction openings are usually arranged at the lower ends of the devices, and the air outlet openings are arranged at the upper ends of the devices, so that air above the breathing zone cannot be effectively isolated.

Disclosure of Invention

Aiming at the problem that the existing antivirus device cannot effectively purify the respiratory belt, the invention provides a mobile robot for sterilizing new coronavirus in the respiratory belt in a public space, wherein the respiratory belt is scanned in a full plane along a planned path by moving an air inlet up and down in the respiratory belt and a moving platform in a horizontal plane, so that uninterrupted full-dialysis antivirus of the respiratory belt in the large public space is completed.

The invention is realized by the following technical scheme:

a mobile robot for killing new corona viruses in a respiratory zone of a public space, comprising:

the intelligent mobile platform is provided with an ultrasonic distance measurement obstacle avoidance steering wheel at the bottom, a battery, a motor and an intelligent control chip are arranged in the intelligent mobile platform, and the motor drives the ultrasonic distance measurement obstacle avoidance steering wheel;

the air outlet device is arranged on the intelligent mobile platform and comprises a first shell, an air outlet is formed in the side wall of the first shell, and a centrifugal fan is arranged inside the first shell;

the sterilizing device comprises an inverted round table-shaped third shell, the top of the third shell is sealed, an air inlet is formed in the side wall of the third shell, a through hole is formed in the bottom of the third shell, two layers of high-voltage discharging grids are arranged below the inner air inlet, grids of the two layers of high-voltage discharging grids are arranged in a staggered mode, and metal micro-needles are arranged on the opposite surfaces of the high-voltage discharging grids; an ultraviolet lamp is arranged at the air inlet and irradiates a high-voltage discharge grid;

the telescopic mechanism is arranged between the air outlet device and the sterilizing device and comprises a second shell, a corrugated pipe and an electric push rod, the second shell is fixedly arranged on the first shell, a through hole is formed in the top of the second shell and is in sealing connection with one end of the corrugated pipe, the other end of the corrugated pipe is in sealing connection with a through hole in the bottom of the third shell, the electric push rod is arranged in the shell, and the tail end of the push rod of the electric push rod is fixedly connected with the bottom of the sterilizing device;

and the isolating umbrella is fixedly arranged at the top of the sterilizing device with the opening facing downwards.

Furthermore, a stepping motor drives the ultrasonic distance measurement obstacle avoidance steering wheel.

Furthermore, the sterilizing device covers the range of the breathing belt within the height range from the ground under the action of the electric push rod.

Compared with the prior art, the invention has the following beneficial effects:

air above the respiratory belt is effectively isolated, and the elimination and killing of the respiratory belt are really realized; through the up-and-down movement and horizontal path planning of the air inlet in the breathing zone interval, the complete dialysis of air is finally realized in the three-dimensional breathing zone; the automatic purification of the large public space respiratory belt can be realized, and the manpower is greatly saved.

Drawings

FIG. 1 is a schematic view of a respiratory belt definition;

FIG. 2 is a schematic view of a mobile robot for killing new coronavirus in respiratory zone of public space;

FIG. 3 is a longitudinal cross-sectional view of a mobile robot for killing new corona viruses with a respiratory belt for public spaces;

FIG. 4 is a schematic structural diagram of the sterilization device;

FIG. 5 is a schematic view of air flow circulation dialysis of the respiratory belt;

FIG. 6 is a schematic diagram of a motion track of a robot respiratory belt;

FIG. 7 is a diagram showing the mechanism of UV light to destroy DNA structure and inactivate microorganisms;

FIG. 8 shows the peak wavelength of high energy UV photons to inactivate coronavirus;

FIG. 9 is the COVID-19 before and after irradiation by Violeds;

FIG. 10 shows exposure time and virus sterilization rate (distance of Violeds from virus: 3 cm).

In the figure: 1. an intelligent mobile platform; 11. obstacle avoidance steering wheels; 12. a lithium battery pack; 2. an air outlet device; 21. an air outlet; 22. A centrifuge; 3. a telescoping mechanism; 31. a second housing; 32. a bellows; 33 an ultrasonic orientation-responsive sensor; 34. an electric push rod; 4. a sterilizing device; 41. a third housing; 42. an air inlet; 43. a high voltage discharge network; 44. an ultraviolet lamp; 5. an isolating umbrella.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A mobile robot for killing new coronavirus by using respiratory belt in public space, as shown in fig. 2-4, which mainly comprises: intelligent movement platform 1, air-out device 2, telescopic machanism 3, sterilizing equipment 4 and isolation umbrella 5.

The intelligent mobile platform 1 is a disc-shaped trolley structure, the bottom of the intelligent mobile platform is provided with an ultrasonic distance measurement obstacle avoidance steering wheel 11, and the intelligent mobile platform is internally provided with a lithium battery pack 12, a stepping motor, an ultrasonic obstacle avoidance distance measurement system and an intelligent control chip. The lithium battery pack supplies power to the mobile robot which is used for disinfecting and killing new coronavirus by the respiratory belt in the public space. The motor drives the ultrasonic ranging obstacle avoidance steering wheel to avoid and detour in time when encountering pedestrians and obstacles, so that the mobile robot for killing new coronavirus in the respiratory zone in the public space can be ensured to advance according to the optimal running path planned on site.

Air-out device 2 sets up on intelligent Mobile platform 1, including first casing, sets up air outlet 21 on the lateral wall of first casing, and inside sets up centrifugal fan 22.

The sterilization device 4, as shown in fig. 4, includes a third housing 41 in the shape of an inverted round table, the top of which is sealed, the side wall of which is provided with an air inlet 42, the bottom of which is provided with a through hole, and two layers of high-voltage discharge nets 43 are arranged below the inner air inlet, one of which is an anode net and the other is a cathode net; the grids of the two layers of high-voltage discharge grids are arranged in a staggered manner, and metal micro-needles are arranged on the opposite surfaces of the high-voltage discharge grids; ultraviolet lamps 44 are respectively disposed above the high-voltage discharge network on the top of the third casing 41 and on the side wall of the third casing 41 to irradiate the high-voltage discharge network. Metallic microneedles can form corona layers by high voltage point discharges that can trap aerosols and virus particles in the filtered air stream. The aerosol and virus particles are captured to form charged particles which are absorbed by the negative electrode net, and high-energy ultraviolet photon flow is arranged at the air inlet and the air outlet and directly irradiates the high-voltage electric net, so that the broad-spectrum virus can be killed, and the broad-spectrum bacteria can be killed at the same time.

Telescopic machanism 3, the setting is between air-out device and sterilizing equipment, including second casing 31, bellows 32 and electric putter 34, second casing 31 is fixed to be set up on first casing 11, the through-hole is seted up at the top of second casing 31, and the one end sealing connection through reducing pipe and bellows 32, the bottom through-hole sealing connection of bellows 32's the other end through reducing pipe and third casing 31, electric putter sets up in the second casing, electric putter's the terminal bottom fixed connection with sterilizing equipment of push rod, sterilizing equipment's air intake is accomplished in the interval reciprocating of respiratory zone to the up-and-down motion of push rod motor. The second housing 31 is also provided with an ultrasonic position-responsive sensor 33. Preferably, the electric push rod is arranged at the center axis of the bellows 32 to reduce the obstruction to the air flow.

And the isolating umbrella 5 is fixedly arranged at the top of the sterilizing device 4 with an opening facing downwards. In order to isolate the air above the respiratory zone, the diameter of the isolating umbrella is not less than 1.6 meters.

The structure of the mobile robot for killing the new coronavirus by the respiratory belt in the public space has the following characteristics that:

the air inlet is arranged above the air outlet, the air outlet is arranged below the air inlet, airflow is sucked in from the air inlet at the lower part of the isolating umbrella, passes through the high-voltage power grid and is killed by high-voltage electrons and ultraviolet photons, and nontoxic airflow is discharged from the rotary air outlet at the position close to the ground through the corrugated pipe and the air inlet of the fan, so that an up-and-down complete dialysis structure of the breathing zone is formed.

The air inlet is moved up and down in the breathing zone area by the electric push rod, the robot finishes a horizontal planning path by moving the obstacle avoidance platform, the combined motion of the air inlet and the obstacle avoidance platform is a space curve in the breathing zone, and finally the full dialysis of air is realized in the three-dimensional breathing zone.

The principle of killing new coronavirus by a high-energy ultraviolet photon 275nm LED is as follows:

when ultraviolet rays irradiate pathogenic microorganisms, the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in organism cells of the microorganisms is damaged, molecular chain breakage and cross-linking breakage of nucleic acid and protein are caused, so that the normal replication of the microorganisms is lost to achieve the aim of reproduction, and the mechanism is that the microorganisms are inactivated (shown in figure 7).

Ultraviolet light is common, and is light having a wavelength of 10 to 400 nanometers (nm) in sunlight, and is classified into UVA, UVB, and UVC according to different bands. Wherein UVC (wavelength 200-280 nm) can penetrate cell membranes and cell nucleuses of organisms to destroy DNA, and has the effect of killing various germs, such as bacterial propagules, spores, viruses, fungi and the like.

In addition, according to the deep violet technology development bulletin, the peak wavelength of high-energy ultraviolet photon inactivated coronavirus was 275nm (see fig. 8).

In SETi and Shorweiao studies, the Violeds technique was used to show how strongly the COVID-19 killing effect was at 30 seconds of UV irradiation. This study also found that the longer the exposure time, the better the sterilization effect when the coronavirus was placed closer to the light source (see fig. 9, fig. 10).

In the invention, if the diameter d of the high-voltage power grid is 40cm, the area S is 1256cm²The total flux of ultraviolet lamp radiation is 10mW, the distance from the copper net is 20cm, and the area of a projected circular spot at the position of 20cm is 314cm²The radiation power per square centimeter is 31.85mW/cm²The superposition parameter is 4, the number of the lamps is 100, the total radiation power is 800 mu W, and the total radiation flux required for inactivating the new coronavirus is 1085mJ/cm²By simple calculation, when inactivatedThe time interval is 22.6 min.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention by those skilled in the art should fall within the protection scope defined by the claims of the present invention without departing from the spirit of the present invention.