CN214967878U

CN214967878U - Vehicle-mounted positive and negative pressure disinfection integrated machine

Info

Publication number: CN214967878U
Application number: CN202120937554.XU
Authority: CN
Inventors: 叶国洲
Original assignee: Sanhe Kefeng Electric Co ltd
Current assignee: Sanhe Kefeng Electric Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-03
Anticipated expiration: 2031-04-30

Abstract

The utility model provides an on-vehicle positive negative pressure disinfection all-in-one, belong to disinfecting equipment technical field, the power distribution box comprises a box body, the fan, well effect filter, the sterilizer, high efficiency filter and controller unit, the box is located in the medical locomotive, the fan is located inside being used for of box suction car internal air to the box, make car internal air pressure be less than car external air pressure and form the negative pressure environment of atmospheric pressure difference, the fan still can suction car external air to the car in, make car internal air pressure be greater than car external air pressure and form the malleation environment of atmospheric pressure difference, well effect filter is used for filtering the air in being in by the fan suction box, the sterilizer is used for disinfecting the air after being filtered by well effect filter, high efficiency filter is used for filtering the air after being disinfected by the sterilizer, controller unit control fan, the sterilizer operation. The utility model discloses have the medical locomotive to the internal energy formation negative pressure environment of car and to the interior air disinfection purification of car, prevent that contaminated air from discharging the car outward, avoid virus and bacterium to the technological effect of external propagation.

Description

Vehicle-mounted positive and negative pressure disinfection integrated machine

Technical Field

The utility model belongs to the technical field of disinfecting equipment, more specifically say, relate to a vehicle-mounted positive negative pressure disinfection all-in-one.

Background

The demand for mobile nucleic acid detection vehicles, ambulances, P2 laboratories, etc. is increasing, and particularly the demand for ambulances that can transport patients is more urgent.

The current medical mobile vehicles such as nucleic acid detection vehicles and ambulances only have normal vehicle functions, including air conditioning cooling and heating systems, natural air pressure and the like, and people in the cabins can breathe normally, but when viruses are polluted in the vehicles, the polluted gas is easily discharged out of the vehicles through door gaps and the like of the vehicles, and meanwhile, the medical mobile vehicles do not have the function of disinfecting the polluted air in the vehicle bodies, so that the environment outside the vehicles is polluted. Therefore, there is a need for a device that can form a negative pressure environment in a vehicle, purify and sterilize air in the vehicle, and prevent the air in the vehicle from being discharged to the outside of the vehicle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a vehicle-mounted positive negative pressure disinfection all-in-one machine aims at solving among the prior art medical locomotive and can not form negative pressure environment and to the technical problem of interior air disinfection purification of car to the car internal environment.

In order to achieve the above object, the utility model adopts the following technical scheme: the vehicle-mounted positive and negative pressure disinfection integrated machine comprises a box body, a fan, a medium-efficiency filter, a disinfector, a high-efficiency filter and a controller unit; the box body is arranged in the medical mobile vehicle, an air inlet and an air outlet are arranged on the box body, and the air outlet is communicated to the outside of the vehicle body through a pipeline; the fan is arranged in the box body and close to the air inlet and is used for sucking air in the vehicle body to the interior of the box body, enabling the air pressure in the vehicle body to be lower than the air pressure outside the vehicle and forming a negative pressure environment with air pressure difference; the middle-effect filter is arranged in the box body and positioned at the air outlet of the fan and used for filtering air sucked into the box body by the fan; the disinfector is arranged in the box body, is positioned at the filtering outlet end of the middle-effect filter and is used for disinfecting the air filtered by the middle-effect filter; the high-efficiency filter is arranged in the box body and positioned at the disinfection outlet end of the disinfector and used for filtering the air disinfected by the disinfector, the filtration outlet end of the high-efficiency filter is communicated with the air outlet of the box body, and the air entering from the air inlet of the box body is filtered and disinfected by the fan, the medium-efficiency filter, the disinfector and the high-efficiency filter in sequence and then discharged out of the vehicle through the air outlet; the controller unit is arranged in the box body, is respectively electrically connected with the fan and the disinfector and respectively controls the operation.

In a possible implementation manner, a drawer-type box body is arranged on the box body, the middle-effect filter, the sterilizer and the high-efficiency filter are all stacked up and down and are arranged inside the box body, after the box body is inserted into the box body, the middle-effect filter is located at the air outlet of the fan, the high-efficiency filter is communicated with the air outlet of the box body, and the box body is pulled to detach and replace the middle-effect filter or the sterilizer or the high-efficiency filter.

In a possible implementation manner, a threshold range of the air pressure difference between the inside and the outside of the vehicle is set on the controller unit, a speed regulation knob for controlling the air suction speed of the fan is arranged on the controller unit, and the speed regulation knob is electrically connected with the fan to control the air pressure difference within the threshold range.

In a possible implementation manner, a digital display pressure difference meter is arranged on the box body, a pressure difference sensor electrically connected with the controller unit is arranged on the box body, the pressure difference sensor is electrically connected with the digital display pressure difference meter, the digital display pressure difference meter is used for displaying a pressure difference signal detected by the pressure difference sensor, one measuring end of the pressure difference sensor is arranged outside the vehicle body, and the other measuring end of the pressure difference sensor is arranged on the box body.

In a possible implementation mode, the box body is provided with an alarm electrically connected with the controller unit, and when the air pressure difference is not within the threshold range, the controller unit instructs the alarm to send out an alarm signal.

In a possible implementation mode, the box body is provided with a power supply input port and a control signal input port, the power supply input port is used for being connected with an external power supply, the control signal input port is used for being connected to a controller in a cab of the medical movable vehicle body through a wire harness, and the controller unit can be controlled to act on the cab controller.

In a possible implementation manner, the middle-effect filter and the high-effect filter are detachably connected with the box body.

In a possible implementation manner, the alarm is a buzzer alarm or an audible and visual alarm, and the controller unit is a single chip microcomputer.

In a possible implementation manner, the air inlet and the air outlet are both provided with a screen plate, the box body is provided with a disinfection switch, and the disinfection switch is electrically connected with the disinfector and is used for controlling the disinfector to start and stop.

In one possible implementation, the sterilizer is a UV sterilizing lamp, and the on and off of the UV sterilizing lamp is controlled by the controller unit.

The utility model provides a beneficial effect of on-vehicle positive negative pressure disinfection all-in-one lies in: compared with the prior art, the vehicle-mounted positive and negative pressure disinfection integrated machine comprises a box body, a fan, a middle-effect filter, a disinfector, a high-effect filter and a controller unit; the box body is arranged in the medical locomotive, an air inlet and an air outlet are arranged on the box body, and the air outlet is communicated to the outside of the locomotive body through a pipeline; the fan is arranged in the box body and close to the air inlet and is used for sucking air in the vehicle body to the interior of the box body, enabling the air pressure in the vehicle body to be lower than the air pressure outside the vehicle and forming a negative pressure environment with air pressure difference, and the fan can also suck air outside the vehicle body to the interior of the vehicle, enabling the air pressure in the vehicle body to be higher than the air pressure outside the vehicle and forming a positive pressure environment with air pressure difference; the middle-effect filter is arranged in the box body and positioned at the air outlet of the fan and used for filtering air pumped into the box body by the fan; the disinfector is arranged in the box body and positioned at the filtering outlet end of the middle-effect filter and is used for disinfecting the air filtered by the middle-effect filter; the high-efficiency filter is arranged in the box body and positioned at the disinfection outlet end of the disinfector and used for filtering the air disinfected by the disinfector, the filtration outlet end of the high-efficiency filter is communicated with the air outlet of the box body, and the air entering from the air inlet of the box body is filtered and disinfected by the fan, the medium-efficiency filter, the disinfector and the high-efficiency filter in sequence and then discharged out of the vehicle through the air outlet; the controller unit is arranged in the box body, is respectively electrically connected with the fan and the disinfector and respectively controls the operation. The utility model provides an among the prior art medical locomotive can not form negative pressure environment and to the interior air disinfection of car and purify the technical problem, have medical locomotive and to the car internal energy formation negative pressure environment and to the interior air disinfection of car and purify, prevent that contaminated air from discharging the car outside, avoid virus and bacterium to the technological effect of external propagation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic perspective view of a vehicle-mounted positive and negative pressure disinfection all-in-one machine provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic diagram of a box structure of the vehicle-mounted positive and negative pressure disinfection all-in-one machine provided by the embodiment of the utility model;

FIG. 4 is an exploded view of a box structure of the vehicle-mounted positive and negative pressure disinfection all-in-one machine provided by the embodiment of the present invention;

FIG. 5 is a side view of the vehicle-mounted positive and negative pressure disinfection all-in-one machine provided by the embodiment of the utility model;

fig. 6 is a rear view of the vehicle-mounted positive and negative pressure disinfection all-in-one machine provided by the embodiment of the utility model.

Description of reference numerals:

1. a box body; 2. a fan; 3. a medium-efficiency filter; 4. a sterilizer; 5. a high efficiency filter; 6. an air inlet; 7. an air outlet; 8. a high pressure port; 9. a low pressure port; 10. a box body; 11. a speed regulation knob; 12. a digital display differential pressure gauge; 13. an alarm; 14. a power supply input port; 15. a control signal input port; 16. a sterilizing switch; 17. a power switch; 18. an automatic/manual switch; 19. and (4) a drawer cover.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 6 together, the vehicle-mounted positive and negative pressure disinfection all-in-one machine provided by the present invention will now be described. The vehicle-mounted positive and negative pressure disinfection integrated machine comprises a box body 1, a fan 2, a medium-efficiency filter 3, a disinfector 4, a high-efficiency filter 5 and a controller unit; the box body 1 is arranged in the medical mobile vehicle, the box body 1 is provided with an air inlet 6 and an air outlet 7, and the air outlet 7 is communicated to the outside of the vehicle body through a pipeline; the fan 2 is arranged in the box body 1 and close to the air inlet 6 and is used for sucking air in the vehicle body to the inside of the box body 1, so that the air pressure in the vehicle body is lower than the air pressure outside the vehicle and a negative pressure environment with air pressure difference is formed, and the fan 2 can also suck air outside the vehicle body to the inside of the vehicle so that the air pressure in the vehicle body is higher than the air pressure outside the vehicle and a positive pressure environment with air pressure difference is formed; the middle-effect filter 3 is arranged in the box body 1 and positioned at an air outlet 7 of the fan 2 and is used for filtering air pumped into the box body 1 by the fan 2; the sterilizer 4 is arranged in the box body 1 and positioned at the filtering outlet end of the middle-effect filter 3 and is used for sterilizing the air filtered by the middle-effect filter 3; the high-efficiency filter 5 is arranged in the box body 1 and positioned at the disinfection outlet end of the disinfector 4 and used for filtering the air disinfected by the disinfector 4, the filtration outlet end of the high-efficiency filter 5 is communicated with the air outlet 7 of the box body 1, and the air entering from the air inlet 6 of the box body 1 is filtered and disinfected by the fan 2, the medium-efficiency filter 3, the disinfector 4 and the high-efficiency filter 5 in sequence and then discharged out of the vehicle through the air outlet 7; the controller unit is arranged inside the box body 1, is respectively electrically connected with the fan 2 and the disinfector 4 and respectively controls the operation.

Compared with the prior art, the vehicle-mounted positive and negative pressure disinfection integrated machine provided by the utility model comprises a box body 1, a fan 2, a middle-effect filter 3, a disinfector 4, a high-efficiency filter 5 and a controller unit; the box body 1 is arranged in the medical mobile vehicle, the box body 1 is provided with an air inlet 6 and an air outlet 7, and the air outlet 7 is communicated to the outside of the vehicle body through a pipeline; the fan 2 is arranged in the box body 1 and close to the air inlet 6 and is used for sucking air in the vehicle body to the inside of the box body 1, so that the air pressure in the vehicle body is lower than the air pressure outside the vehicle and a negative pressure environment with air pressure difference is formed, and the fan 2 can also suck air outside the vehicle body to the inside of the vehicle so that the air pressure in the vehicle body is higher than the air pressure outside the vehicle and a positive pressure environment with air pressure difference is formed; the middle-effect filter 3 is arranged in the box body 1 and positioned at an air outlet 7 of the fan 2 and is used for filtering air pumped into the box body 1 by the fan 2; the sterilizer 4 is arranged in the box body 1 and positioned at the filtering outlet end of the middle-effect filter 3 and is used for sterilizing the air filtered by the middle-effect filter 3; the high-efficiency filter 5 is arranged in the box body 1 and positioned at the disinfection outlet end of the disinfector 4 and used for filtering the air disinfected by the disinfector 4, the filtration outlet end of the high-efficiency filter 5 is communicated with the air outlet 7 of the box body 1, and the air entering from the air inlet 6 of the box body 1 is filtered and disinfected by the fan 2, the medium-efficiency filter 3, the disinfector 4 and the high-efficiency filter 5 in sequence and then discharged out of the vehicle through the air outlet 7; the controller unit is arranged inside the box body 1, is respectively electrically connected with the fan 2 and the disinfector 4 and respectively controls the operation. The utility model provides an among the prior art medical locomotive can not form negative pressure environment and to the interior air disinfection of car and purify the technical problem, have medical locomotive and to the car internal energy formation negative pressure environment and to the interior air disinfection of car and purify, prevent that contaminated air from discharging the car outside, avoid virus and bacterium to the technological effect of external propagation.

The utility model discloses mainly used negative pressure can solve the above-mentioned technical problem in the negative pressure operation, except can operating the negative pressure, the utility model discloses can also operate the malleation, when the operation is in the malleation environment, can solve other technical problem.

Through controller unit control operation, realize the disinfection of vehicular positive negative pressure, the utility model discloses well mainly indicate to form negative pressure environment, the air conditioning system who also can be used to the vehicle purifies and disinfects, form the atmosphere low pressure difference relative with external environment in enabling the car, prevent the contaminated air in the car from leaking, keep in the certain limit for the outer atmospheric pressure of car through car internal gas pressure, guide the air current to the local flow of keeping away from medical staff, filter the back through 5 high efficiency filter more than 99.99% of filtration efficiency again, and through the disinfection back, discharge the clean air after the disinfection outdoor, avoid virus and bacterium to spread outward. The ventilation and air exchange purposes are achieved, the environment is not polluted, the anti-jamming capability is high, the equipment is provided with alarm control, analog transmission output, analog transmission input, 485/232 communication output, high-low pressure difference sensor input, a system protection circuit and a stepless speed regulation circuit of the fan 2, namely an automatic constant speed circuit, and the application range is wide.

The box body 1 is also provided with a high pressure port 8 and a low pressure port 9, the high pressure port 8 and the low pressure port 9 are interfaces used for communicating pipelines between the air outlet 7 of the box body 1 and the outside of the vehicle, the high pressure port 8 is an interface used when a positive pressure environment is formed in the vehicle, and the low pressure port 9 is an interface used when a negative pressure environment is formed in the vehicle. The utility model discloses in can not consider high-pressure port 8 and low-pressure port 9, as long as have pipeline intercommunication box 1 air outlet 7 and the car between can, the wind current of being convenient for like this passes through, its core still controls the inside and outside positive negative pressure environment of car through rotational speed, the positive and negative commentaries on classics of fan 2.

The box body 1 is connected with an external power supply through a wire harness, and the wire harness is provided with a power switch 17, so that the external power supply can be electrified or disconnected to the box body 1. An automatic/manual switch 18 is further arranged on the box body 1, and the automatic control start and stop or manual control start and stop of the fan 2 by the controller unit can be realized.

In some embodiments, referring to fig. 3 to 4, a drawer-type box 10 is disposed on the box 1, the middle-effect filter 3, the sterilizer 4 and the high-effect filter 5 are stacked up and down inside the box 10, after the box 10 is inserted into the box 1, the middle-effect filter 3 is located at the air outlet 7 of the fan 2, the high-effect filter 5 is communicated with the air outlet 7 of the box 1, and the box 10 is pulled to detach and replace the middle-effect filter 3 or the sterilizer 4 or the high-effect filter 5. The box body 10 is similar to a drawer form, so that the installation and the disassembly are convenient, and the box body 1 can be used by pushing the box body 10 into the box body 1; the box body 10 is drawn out, and the parts are convenient to replace.

The upper part of the box body 10 is provided with a drawer cover 19, the drawer cover 19 is of a hollow structure or a through hole structure in the middle part and is pressed on the upper end of the medium-efficiency filter 3, and the medium-efficiency filter 3, the sterilizer 4 and the high-efficiency filter 5 are regarded as an integrated structure by using the drawer cover 19, so that the displacement in the filtering and sterilizing process and the loss of the functional effect of each part are prevented.

Through the arrangement of the upper and lower stacked layers, the replacement and maintenance of each part in the box body 1 are facilitated. In particular, the middle-effect filter 3 and the high-effect filter 5 are connected into the box body 10 through a buckle or other modes, and are convenient to detach.

In some embodiments, referring to fig. 1 to 6, a threshold range of the air pressure difference between the inside and the outside of the vehicle is set on the controller unit, a speed-adjusting knob 11 for controlling the air-sucking speed of the fan 2 is disposed on the controller unit, and the speed-adjusting knob 11 is electrically connected to the fan 2 to control the air pressure difference within the threshold range.

The threshold range set in the controller unit is a range in which control of the negative pressure difference formed between the inside and outside of the vehicle body is required, and if the threshold range is maintained, polluted air in the vehicle is not discharged to the outside of the vehicle, and the environment outside the vehicle is prevented from being polluted. When the rotating speed of the fan 2 is unstable or the pressure difference needs to be adjusted, the air flow is increased or decreased by adjusting the rotating speed of the fan 2, and the pressure difference can be controlled.

In some embodiments, referring to fig. 1 to 6, a digital display pressure difference meter 12 is disposed on the box body 1, a pressure difference sensor electrically connected to the controller unit is disposed on the box body 1, the pressure difference sensor is electrically connected to the digital display pressure difference meter 12, the digital display pressure difference meter 12 is configured to display a pressure difference signal detected by the pressure difference sensor, one measuring end of the pressure difference sensor is disposed outside the vehicle body, and the other measuring end is disposed on the box body 1. The differential pressure sensor can detect the differential pressure inside and outside the vehicle, can detect positive differential pressure and negative differential pressure, and transmits data to the digital differential pressure gauge 12 in real time.

In some embodiments, referring to fig. 1 to 6, an alarm 13 electrically connected to the controller unit is disposed on the box body 1, and when the air pressure difference is not within the threshold range, the controller unit instructs the alarm 13 to send an alarm signal. The alarm 13 reminds the staff to pay attention to the positive and negative pressure difference inside and outside the vehicle body, prevents polluted air in the vehicle from leaking, and is convenient for the staff to adjust the rotating speed of the fan 2 and the sterilizer 4 to sterilize the air in time.

In some embodiments, referring to fig. 1 to 6, the box body 1 is provided with a power input port 14 and a control signal input port 15, the power input port 14 is used for connecting an external power source, the control signal input port 15 is used for connecting to a controller in a cab of the medical mobile vehicle body through a wire harness, and the controller unit can be controlled to operate on the cab controller.

The controller is arranged in the cab on the medical mobile vehicle, the operation or execution action of the controller unit in the vehicle body can be controlled through the cab controller, the purpose of controlling in the cab is achieved, different personnel go to the vehicle body to adjust or execute the controller unit, and therefore the technical effects of convenience and flexibility in adjusting and controlling the fan 2 and the sterilizer 4 are achieved.

In addition, a display screen is arranged in the cab and electrically connected with the controller unit, and the running states of the fan 2 and the sterilizer 4 can be displayed on the display screen.

The control signal input port 15 is an output interface with an RS485 function, and can be connected with an external communication terminal through software.

In some embodiments, referring to fig. 1 to 6, the middle-effect filter 3 and the high-effect filter 5 are detachably connected to the box body 10.

In some embodiments, please refer to fig. 1 to 6, the alarm 13 is a buzzer alarm 13 or an audible and visual alarm 13, the controller unit is a single chip, and the controller can also adopt a programmable controller plc or other controllers in the prior art, in short, the controller unit used in the present invention can be found in the prior art, and can be used by directly installing it inside the box body 1.

In some embodiments, referring to fig. 1 to 6, the air inlet 6 and the air outlet 7 are both provided with a mesh plate, the box 1 is provided with a disinfection switch 16, and the disinfection switch 16 is electrically connected to the sterilizer 4 and is used for controlling the sterilizer 4 to start and stop. The screen plate can allow wind flow to pass through, but can not allow impurities, paper scraps and the like with larger volume to enter.

In some embodiments, referring to fig. 1-6, the sterilizer 4 is a UV sterilizing lamp, and the on and off of the UV sterilizing lamp is controlled by the controller unit. The disinfector 4 mainly kills residual bacteria and viruses in the medium-efficiency filter 3, the high-efficiency filter 5 and the surrounding space, and the UV disinfection lamp emits ultraviolet rays for disinfection.

The utility model discloses still possess automatic constant speed function, work as equipment promptly (the utility model discloses) produce the unstable phenomenon of positive negative pressure because of external influence in to the car, through high low pressure sensor pressure difference contrast, receive the interior external differential pressure of car and exceed and set for within range signal, automatic control fan 2 adjusts the wind speed for the interior external differential pressure of car gets back to the pressure differential and sets for in the within range, guarantees the interior external differential pressure of car from this and keeps in the pressure differential settlement within range.

The utility model discloses the temperature range who is suitable for does: -10 ℃ to 60 ℃; the relative humidity was: not greater than 85% (non-condensation); the atmospheric pressure is: 86kpa-106kpa, the connection power supply is: AC220V + -10%, 50Hz + -2%.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. On-vehicle positive negative pressure disinfection all-in-one, its characterized in that includes:

the box body is arranged in the medical locomotive, an air inlet and an air outlet are formed in the box body, and the air outlet is communicated to the outside of the locomotive body through a pipeline;

the fan is arranged in the box body and close to the air inlet and is used for sucking air in the vehicle body to the interior of the box body, enabling the air pressure in the vehicle body to be lower than the air pressure outside the vehicle and forming a negative pressure environment with air pressure difference;

the middle-effect filter is arranged in the box body and positioned at the air outlet of the fan and is used for filtering the air pumped into the box body by the fan;

the disinfector is arranged in the box body, is positioned at the filtering outlet end of the middle-effect filter and is used for disinfecting the air filtered by the middle-effect filter;

the high-efficiency filter is arranged in the box body and positioned at the disinfection outlet end of the disinfector and used for filtering the air disinfected by the disinfector, the filtration outlet end of the high-efficiency filter is communicated with the air outlet of the box body, and the air entering from the air inlet of the box body is filtered and disinfected by the fan, the medium-efficiency filter, the disinfector and the high-efficiency filter in sequence and then discharged out of the vehicle through the air outlet; and

and the controller unit is arranged in the box body, is respectively electrically connected with the fan and the disinfector and respectively controls the operation.

2. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 1, wherein a drawer-type box is provided on the box, the middle-effect filter, the disinfector and the high-efficiency filter are all stacked up and down inside the box, after the box is inserted into the box, the middle-effect filter is located at the air outlet of the fan, the high-efficiency filter is communicated with the air outlet of the box, and the box is pulled to detach and replace the middle-effect filter or the disinfector or the high-efficiency filter.

3. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 1, wherein a threshold range of the air pressure difference between the inside and the outside of the vehicle is set on the controller unit, a speed regulating knob for controlling the air suction speed of the fan is arranged on the controller unit, and the speed regulating knob is electrically connected with the fan so as to control the air pressure difference within the threshold range.

4. The vehicle-mounted positive and negative pressure disinfection integrated machine according to claim 1, wherein a digital display pressure difference meter is arranged on the box body, a pressure difference sensor electrically connected with the controller unit is arranged on the box body, the pressure difference sensor is electrically connected with the digital display pressure difference meter, the digital display pressure difference meter is used for displaying a pressure difference signal detected by the pressure difference sensor, one measuring end of the pressure difference sensor is arranged outside the vehicle body, and the other measuring end of the pressure difference sensor is arranged on the box body.

5. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 3, wherein an alarm electrically connected with the controller unit is arranged on the box body, and when the air pressure difference is not within the threshold range, the controller unit instructs the alarm to send out an alarm signal.

6. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 1, wherein a power supply input port and a control signal input port are arranged on the box body, the power supply input port is used for being connected with an external power supply, the control signal input port is used for being connected to a controller in a cab of a medical movable vehicle body through a wiring harness, and the controller unit can be controlled to act on the cab controller.

7. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 2, wherein the medium-efficiency filter and the high-efficiency filter are detachably connected with the box body.

8. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 5, wherein the alarm is a buzzer alarm or an audible and visual alarm, and the controller unit is a single chip microcomputer.

9. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 1, wherein the air inlet and the air outlet are both provided with a screen plate, the box body is provided with a disinfection switch, and the disinfection switch is electrically connected with the disinfector and is used for controlling the disinfector to start and stop.

10. The vehicle-mounted positive and negative pressure disinfection all-in-one machine as claimed in claim 1, wherein the disinfector is a UV disinfection lamp, and the start and stop of the UV disinfection lamp are controlled by the controller unit.