Vehicle-mounted negative pressure disinfection and sterilization device

Abstract

The utility model relates to a vehicle-mounted negative pressure disinfection and sterilization device, which belongs to the field of sterilization devices and comprises a vehicle body, the upper surface of the vehicle body is provided with a disinfection mechanism for compositely disinfecting and sterilizing air, and the left side of the upper surface of the vehicle body is provided with a negative pressure mechanism for generating vehicle-mounted negative pressure. According to the vehicle-mounted negative-pressure disinfection and sterilization device, by arranging the disinfection mechanism, air is firstly sucked into the disinfection box, harmful gas and peculiar smell in the air are removed through an activated carbon filter layer, and then harmful substances in the air are decomposed through a photocatalytic layer under the illumination condition of an ultraviolet disinfection lamp; ultraviolet light emitted by the ultraviolet disinfection lamp irradiates microorganisms in the air to achieve the sterilization and disinfection effect, the air subjected to ultraviolet disinfection enters the connecting box filled with the gas-phase molecular sieve, the molecular sieve further adsorbs harmful molecules possibly remaining in the air, and after the air is disinfected and purified layer by layer, the harmful molecules in the air can be purified. Clean air is discharged out of the vehicle through an exhaust pipe on the right side of the disinfection box to finish disinfection.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization devices, in particular to a vehicle-mounted negative pressure disinfection and sterilization device. Background Art

[0002] The vehicle-mounted negative pressure disinfection and sterilization device is a special equipment designed for medical vehicles such as ambulances. Its main function is to effectively control and reduce the spread of pathogens and protect medical staff and the external environment from pollution by creating a negative pressure environment in the vehicle when transporting infectious patients.

[0003] For example, a vehicle-mounted negative pressure disinfection and sterilization device disclosed in Chinese patent announcement number (CN214635143U) includes: a cavity, an air inlet, a metal filter, a microwave ultraviolet treatment area, a water-cooling heat dissipation area and an air outlet, wherein the air inlet is arranged on the top side of the cavity, the air outlet is arranged at the bottom of the cavity, the metal filter, the microwave ultraviolet treatment area and the water-cooling heat dissipation area are respectively arranged inside the cavity and are connected in sequence from near the air inlet to near the air outlet, and the water-cooling heat dissipation area includes a fan and a liquid cooling radiator. That is to say, the use of the utility model can ensure the uniform and scientific discharge of the air in the vehicle when used to transport patients with infectious diseases and disinfect and sterilize the discharged high-speed flowing gas, block the air transmission of pathogens and harmful microorganisms when the ambulance transports infectious patients, thereby achieving the purpose of blocking the large-scale spread of infectious diseases, and can also improve the heat dissipation efficiency and improve the long-term stable operation of the magnetron by adopting an integrated water cooling and heat dissipation design.

[0004] However, as in the above patent, there is still a problem that the disinfection and sterilization effect of the air flow extracted by negative pressure is poor. For example, in the above patent, the filtering performance of the negative pressure system when extracting air under a negative pressure environment is enhanced to avoid bacterial accumulation, but this method has a general effect on the exhaust disinfection and sterilization of air. The sterilization treatment of pathogens in the air by the microwave ultraviolet treatment area alone is not comprehensive enough. Due to the fast air flow rate under negative pressure conditions, the air cannot be quickly disinfected and sterilized. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a vehicle-mounted negative pressure disinfection and sterilization device, which has the advantages of good disinfection and sterilization effect, and solves the problem in the prior art that the disinfection and sterilization effect of the airflow extracted by negative pressure is poor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a vehicle-mounted negative pressure disinfection and sterilization device, comprising a vehicle body, the upper surface of which is provided with a disinfection mechanism for performing compound disinfection and sterilization on air, and the left side of the upper surface of the vehicle body is provided with a negative pressure mechanism for generating vehicle-mounted negative pressure;

[0007] The disinfection mechanism includes a disinfection box, a filter layer, a photocatalytic layer, an ultraviolet disinfection lamp, a connection box and a gas phase molecular sieve. The disinfection box is fixed to the upper surface of the vehicle body, the filter layer is fixed to the left side of the inner wall of the disinfection box, the photocatalytic layer is fixed to the middle part of the inner wall of the disinfection box, the ultraviolet disinfection lamp is fixed to the inner top wall of the disinfection box and is located between the opposite sides of the filter layer and the photocatalytic layer, the connection box is fixed to the right side of the inner wall of the disinfection box, and the gas phase molecular sieve is filled inside the connection box.

[0008] Furthermore, a plurality of air holes penetrating through the inner wall of the connection box are provided on the outer side of the connection box.

[0009] Furthermore, the filter layer is an activated carbon layer, and the length of the connection box is equal to the distance between the front and rear inner walls of the disinfection box.

[0010] Furthermore, the right side of the disinfection box is connected to an exhaust duct, and a bracket fixed to the upper surface of the vehicle body is provided on the outer side of the exhaust duct.

[0011] Furthermore, the negative pressure mechanism includes a bellows, sound insulation cotton, a negative pressure fan, an exhaust pipe, an air supply pipe, a filter box, a filter screen, a connecting pipe and an air guide hood. The bellows is fixed to the left side of the upper surface of the vehicle body, the sound insulation cotton is fixed to the inner wall of the bellows, the negative pressure fan is fixed to the inner bottom wall of the bellows and is located above the sound insulation cotton, the exhaust pipe is connected to the air inlet end of the negative pressure fan, one end of the air supply pipe is connected to the air outlet end of the negative pressure fan, and the other end of the air supply pipe passes through and extends to the left inner wall of the disinfection box, the filter box is fixed to the left side of the upper surface of the vehicle body, the filter screen is vertically placed between the front and rear inner walls of the filter box, the air guide hood is fixed to the inner top wall of the vehicle body, one end of the connecting pipe is connected to the left side of the filter box, and the other end of the connecting pipe is connected to the air guide hood.

[0012] Furthermore, the bottom end of the air supply pipe passes through and extends to the right inner wall of the filter box.

[0013] Furthermore, a disassembly cover plate is slidably connected to the inner wall of the filter box, and the disassembly cover plate is fixed to the upper surface of the filter screen.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The vehicle-mounted negative pressure disinfection and sterilization device is equipped with a disinfection mechanism. The air is first sucked into the disinfection box and passes through the activated carbon filter layer to remove harmful gases and odors in the air. Then, the harmful substances in the air are decomposed through the photocatalytic layer under the lighting conditions of the ultraviolet disinfection lamp. The ultraviolet light emitted by the ultraviolet disinfection lamp irradiates the microorganisms in the air to achieve the effect of sterilization and disinfection. The air after ultraviolet disinfection enters the connection box filled with gas phase molecular sieves. The molecular sieves further adsorb harmful molecules that may remain in the air. After the above-mentioned layers of disinfection and purification, the clean air is discharged out of the vehicle through the exhaust pipe on the right side of the disinfection box, completing the entire disinfection process.

[0016] 2. The vehicle-mounted negative pressure disinfection and sterilization device is equipped with a negative pressure mechanism. The negative pressure fan generates negative pressure in the vehicle body, and air is drawn from the vehicle through the exhaust pipe. The sound insulation cotton above the negative pressure fan plays a sound insulation role, improving the riding comfort. The drawn air passes through the filter in the filter box to remove large particles of impurities in the air. Through the continuous operation of the negative pressure fan, a negative pressure environment is formed in the vehicle relative to the outside of the vehicle. The disinfected clean air is finally discharged out of the vehicle through the exhaust pipe, completing the circulation and renewal of the air. Through the above steps, not only the circulation and disinfection of the air are promoted, but also the risk of cross-infection in the vehicle is effectively controlled by maintaining a negative pressure state. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the disinfection mechanism of the utility model;

[0019] Figure 3 It is a partial schematic diagram of the disinfection mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the negative pressure mechanism of the utility model.

[0021] In the figure: 1 vehicle body, 2 disinfection mechanism, 21 disinfection box, 22 filter layer, 23 photocatalytic layer, 24 ultraviolet disinfection lamp, 25 connection box, 26 gas phase molecular sieve, 27 air vent, 28 exhaust duct, 3 negative pressure mechanism, 31 bellows, 32 sound insulation cotton, 33 negative pressure fan, 34 exhaust duct, 35 air supply duct, 36 filter box, 37 filter net, 38 connection pipe, 39 air guide cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 A vehicle-mounted negative pressure disinfection and sterilization device in this embodiment includes a vehicle body 1, a disinfection mechanism 2 for performing composite disinfection and sterilization on the air is provided on the upper surface of the vehicle body 1, and a negative pressure mechanism 3 for generating vehicle-mounted negative pressure is provided on the left side of the upper surface of the vehicle body 1.

[0024] See also Figure 2-3 In order to perform composite disinfection and sterilization on the air in the vehicle, the disinfection mechanism 2 in this embodiment includes a disinfection box 21, a filter layer 22, a photocatalytic layer 23, an ultraviolet disinfection lamp 24, a connection box 25 and a gas phase molecular sieve 26. The disinfection box 21 is fixed to the upper surface of the vehicle body 1, and the filter layer 22 is fixed to the left side of the inner wall of the disinfection box 21. The air is first sucked into the disinfection box 21, and passes through the filter layer 22 which is activated carbon to remove harmful gases and odors in the air. The photocatalytic layer 23 is fixed to the middle part of the inner wall of the disinfection box 21. The air that has been preliminarily filtered then passes through the photocatalytic layer 23, where the photocatalyst is exposed to the light of the ultraviolet disinfection lamp 24. Under the cooperation of light conditions, strong oxidizing substances are generated to decompose harmful substances in the air. The ultraviolet disinfection lamp 24 is fixed to the inner top wall of the disinfection box 21 and is located between the filter layer 22 and the photocatalytic layer 23 on the opposite side. The ultraviolet light emitted by the ultraviolet disinfection lamp 24 irradiates the microorganisms in the air to destroy their DNA or RNA structure, thereby achieving the effect of sterilization and disinfection. The connecting box 25 is fixed to the right side of the inner wall of the disinfection box 21, and the gas phase molecular sieve 26 is filled in the interior of the connecting box 25. The air after ultraviolet disinfection enters the connecting box 25 filled with the gas phase molecular sieve 26, and the molecular sieve further adsorbs harmful molecules that may remain in the air.

[0025] In this embodiment, a plurality of air holes 27 penetrating to the inner wall of the connecting box 25 are provided on the outer side of the connecting box 25, the filter layer 22 is an activated carbon layer, the length of the connecting box 25 is equal to the distance between the inner walls of the front and rear sides of the disinfection box 21, and the right side of the disinfection box 21 is connected to an exhaust duct 28, and a bracket fixed to the upper surface of the vehicle body 1 is provided on the outer side of the exhaust duct 28. After layers of disinfection and purification, the clean air is discharged out of the vehicle through the exhaust duct 28 on the right side of the disinfection box 21, completing the entire disinfection process.

[0026] See also Figure 4In order to filter the air in the car under negative pressure, the negative pressure mechanism 3 in this embodiment includes a bellows 31, sound insulation cotton 32, a negative pressure fan 33, an exhaust pipe 34, an air supply pipe 35, a filter box 36, a filter screen 37, a connecting pipe 38 and an air guide cover 39. The bellows 31 is fixed to the left side of the upper surface of the car body 1, and the sound insulation cotton 32 is fixed to the inner wall of the bellows 31. The sound insulation cotton 32 on the outside of the negative pressure fan 33 plays a sound insulation role to improve the riding comfort. The negative pressure fan 33 is fixed to the inner bottom wall of the bellows 31 and is located above the sound insulation cotton 32. The negative pressure fan 33 generates negative pressure in the car body 1 and extracts air from the car through the exhaust pipe 34. The exhaust pipe 34 and the negative pressure fan The air inlet end of the vehicle body 1 is connected to the air outlet end of the negative pressure fan 33, one end of the air supply pipe 35 is connected to the air outlet end of the negative pressure fan 33, and the other end of the air supply pipe 35 passes through and extends to the left inner wall of the disinfection box 21, the filter box 36 is fixed to the left side of the upper surface of the vehicle body 1, and the filter screen 37 is vertically placed between the front and rear inner walls of the filter box 36. The extracted air passes through the filter screen 37 in the filter box 36 to remove large particles of impurities in the air. The air guide cover 39 is fixed to the inner top wall of the vehicle body 1, and the filtered air is sent into the disinfection box 21 for disinfection through the air supply pipe 35. One end of the connecting pipe 38 is connected to the left side of the filter box 36, and the other end of the connecting pipe 38 is connected to the air guide cover 39.

[0027] In this embodiment, the bottom end of the air supply pipe 35 passes through and extends to the right inner wall of the filter box 36. The inner wall of the filter box 36 is slidably connected with a disassembly cover, and the disassembly cover is fixed to the upper surface of the filter net 37. Through the continuous operation of the negative pressure fan 33, a negative pressure environment relative to the outside of the vehicle is formed in the vehicle, preventing pollutants from spreading from the inside of the vehicle to the outside, while ensuring that the disinfected air can be effectively discharged.

[0028] The working principle of the above embodiment is:

[0029] (1) When the air in the vehicle is subjected to a composite disinfection and sterilization, the air is first sucked into the disinfection box 21, and passes through the filter layer 22 of activated carbon to remove harmful gases and odors in the air. The air after preliminary filtration then passes through the photocatalytic layer 23, where the photocatalyst produces strong oxidizing substances under the illumination of the ultraviolet disinfection lamp 24 to decompose harmful substances in the air. The ultraviolet light emitted by the ultraviolet disinfection lamp 24 irradiates the microorganisms in the air, destroying their DNA or RNA structure, thereby achieving the effect of sterilization and disinfection. The air after ultraviolet disinfection enters the connection box 25 filled with gas phase molecular sieve 26, and the molecular sieve further adsorbs harmful molecules that may remain in the air. After the above-mentioned layers of disinfection and purification, the clean air is discharged out of the vehicle through the exhaust pipe 28 on the right side of the disinfection box 21, completing the entire disinfection process.

[0030] (2) When the air in the vehicle is filtered under negative pressure, the negative pressure fan 33 generates negative pressure in the vehicle body 1, and draws air from the vehicle through the exhaust pipe 34. The sound insulation cotton 32 on the outside of the negative pressure fan 33 plays a sound insulation role, thereby improving the riding comfort. The drawn air passes through the filter net 37 in the filter box 36 to remove large particles of impurities in the air. The filtered air is sent to the disinfection box 21 through the air supply pipe 35 for disinfection. Through the continuous operation of the negative pressure fan 33, a negative pressure environment is formed in the vehicle relative to the outside of the vehicle, thereby preventing pollutants from spreading from the inside of the vehicle to the outside, while ensuring that the disinfected air can be effectively discharged.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] The standard parts used in this application document can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in this field. Therefore, this application document will no longer explain the control method and circuit connection in detail.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A vehicle-mounted negative pressure disinfection and sterilization device, comprising a vehicle body (1), characterized in that: The upper surface of the vehicle body (1) is provided with a disinfection mechanism (2) for performing composite disinfection and sterilization on the air, and the left side of the upper surface of the vehicle body (1) is provided with a negative pressure mechanism (3) for generating vehicle-borne negative pressure; The disinfection mechanism (2) comprises a disinfection box (21), a filter layer (22), a photocatalytic layer (23), an ultraviolet disinfection lamp (24), a connection box (25) and a gas phase molecular sieve (26); the disinfection box (21) is fixed to the upper surface of the vehicle body (1); the filter layer (22) is fixed to the left side of the inner wall of the disinfection box (21); the photocatalytic layer (23) is fixed to the middle part of the inner wall of the disinfection box (21); the ultraviolet disinfection lamp (24) is fixed to the inner top wall of the disinfection box (21) and is located between the sides opposite to the filter layer (22) and the photocatalytic layer (23); the connection box (25) is fixed to the right side of the inner wall of the disinfection box (21); and the gas phase molecular sieve (26) is filled in the connection box (25).

2. A vehicle-mounted negative pressure disinfection and sterilization device according to claim 1, characterized in that: The outer side of the connection box (25) is provided with a plurality of air holes (27) penetrating through the inner wall of the connection box (25).

3. A vehicle-mounted negative pressure disinfection and sterilization device according to claim 1, characterized in that: The filter layer (22) is an activated carbon layer, and the length of the connection box (25) is equal to the distance between the front and rear inner walls of the disinfection box (21).

4. A vehicle-mounted negative pressure disinfection and sterilization device according to claim 1, characterized in that: The right side of the disinfection box (21) is connected to an exhaust pipe (28), and a bracket fixed to the upper surface of the vehicle body (1) is provided on the outer side of the exhaust pipe (28).

5. A vehicle-mounted negative pressure disinfection and sterilization device according to claim 1, characterized in that: The negative pressure mechanism (3) comprises a bellows (31), sound insulation cotton (32), a negative pressure fan (33), an exhaust pipe (34), an air supply pipe (35), a filter box (36), a filter screen (37), a connecting pipe (38) and an air guide cover (39); the bellows (31) is fixed to the left side of the upper surface of the vehicle body (1); the sound insulation cotton (32) is fixed to the inner wall of the bellows (31); the negative pressure fan (33) is fixed to the inner bottom wall of the bellows (31) and is located above the sound insulation cotton (32); the exhaust pipe (34) is fixed to the air inlet end of the negative pressure fan (33); The vehicle body (1) is connected to the air supply pipe (35), one end of the air supply pipe (35) is connected to the air outlet end of the negative pressure fan (33), and the other end of the air supply pipe (35) passes through and extends to the left inner wall of the disinfection box (21), the filter box (36) is fixed to the left side of the upper surface of the vehicle body (1), the filter net (37) is vertically placed between the front and rear inner walls of the filter box (36), the air guide cover (39) is fixed to the inner top wall of the vehicle body (1), one end of the connecting pipe (38) is connected to the left side of the filter box (36), and the other end of the connecting pipe (38) is connected to the air guide cover (39).

6. A vehicle-mounted negative pressure disinfection and sterilization device according to claim 5, characterized in that: The bottom end of the air supply pipe (35) penetrates and extends to the right inner wall of the filter box (36).

7. A vehicle-mounted negative pressure disinfection and sterilization device according to claim 5, characterized in that: The inner wall of the filter box (36) is slidably connected with a disassembly cover plate, and the disassembly cover plate is fixed to the upper surface of the filter screen (37).

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