CN217012865U

CN217012865U - Positive pressure protective clothing with cooling function

Info

Publication number: CN217012865U
Application number: CN202220620980.5U
Authority: CN
Inventors: 刘思聪; 刘思宇; 韦茜龄
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-22
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a positive pressure protective clothing with a cooling function, which comprises a protective clothing body, a ventilation waistband, a semiconductor refrigeration fresh air unit, an air transmission hose, an exhaust protection hole and an emergency breathing hole, wherein the semiconductor refrigeration fresh air unit is worn on the waist of a user through the ventilation waistband, and provides cold air meeting biological safety requirements for the interior of the protective clothing body through the air transmission hose; the side of the head of the protective clothing body is provided with an emergency breathing hole, and the outer sides of the trouser legs of the protective clothing body are provided with exhaust protective holes. The protective clothing with the cooling function has the characteristics of simple structure, applicable function, simple wearing and convenient operation, the refrigerated sterile air can penetrate through the head and the legs of a wearer, oxygen required by breathing and meeting the biosafety requirement can be provided for the wearer, the refrigerated air can also provide a cool and comfortable internal environment for the whole body of the wearer, and the air sent downwards from the face can also prevent the formation of face screen water mist caused by breathing.

Description

Positive pressure protective clothing with cooling function

Technical Field

The utility model belongs to the technical field of protective clothing, and particularly relates to positive pressure protective clothing with a cooling function.

Background

In the fields of medical hygiene and veterinary medicine, whenever a major epidemic of an infectious disease is treated, it is common to wear a full set of protective gear in conjunction with the operation to protect workers from contamination or infection by pathogens. Because the protective clothing has poor air permeability and thermal conductivity, the wearer feels stuffy and uncomfortable; especially, at a higher environmental temperature, the sweat of the wearer can be dribbling and the wearer can be difficult to decoct; in addition, the poor breathing and the poor protection performance caused by the poor air permeability of the medical protective mask and the blurred vision caused by the fogging of the protective glasses are the main reasons influencing the safety protection, the standard operation and the comfortable work. In the prior art, a technical scheme of providing cold air for the protective clothing by refrigerating through a semiconductor refrigerating sheet is also adopted, but the following defects still exist: 1. the air flow in the protective clothing is not smooth to penetrate, so that the cooling effect of the lower part of the waist of a body is not good, and the air flow above the waist is blocked, so that the pressure in the protective clothing is increased and the protective clothing is broken; 2. the preparation and the shunt design of cold air and hot air of the refrigeration main machine are not reasonable enough, so that the volume is large and the refrigeration efficiency is low; 3. the emergency protection of power failure or machine failure of a refrigeration air supply system is not considered, and the battery pack does not continuously work for one time and is suitable for long-time work; 4. the protective clothing is not provided with an emergency breathing hole, and the protective clothing cannot safely save oneself when a refrigeration air supply system fails; 5. cold air at the top of the head of the protective clothing is input into the direct-blowing head, and uncomfortable symptoms such as headache and the like of a wearer are easily caused after a long time; 6. the air blowing and flow guiding of the face screen are not designed, so that the moisture of the face screen is not easy to blow and dry, and the permeability and the clarity of the face screen are kept; 7. the design of the air holes on the legs does not have the function of biological safety protection.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the positive pressure protective clothing with the cooling function.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the positive-pressure protective clothing with the cooling function comprises a protective clothing body, a ventilation waistband, a semiconductor refrigeration fresh air unit, an air hose, an emergency breathing hole and an exhaust protection hole, wherein the semiconductor refrigeration fresh air unit is worn on the waist of a user through the ventilation waistband, and the top of the semiconductor refrigeration fresh air unit provides cold air meeting biological safety requirements for the interior of the protective clothing body through the air hose; the side of the head of the protective clothing body is provided with an emergency breathing hole, and the outer sides of the trouser legs of the protective clothing body are provided with exhaust protective holes.

The refrigeration protective clothing designed by the utility model is simple, safe, comfortable and reliable to wear, and a wearer can conveniently move, walk and flexibly operate; because the air input into the protective clothing body is sterile and refrigerated, the protective clothing not only provides an internal environment which meets the biosafety requirement and is aerobic and breathable for a wearer, but also provides an internal environment which is comfortable to cool; due to the design of the air duct of the waistband, the refrigerated air can conveniently pass through the waistband to reach the legs, so that the lower part of the body can also enjoy cool and comfortable environment. The design of the flow guide component for inputting the air flow into the head part not only ensures that cold air can directly blow the head top for a long time, but also ensures that the air flow directionally blows away water vapor on the face screen so as to ensure the permeability and clarity of the face screen; the design of the vent hole waistband and the vent hole not only ensures that the cold air penetrates through the whole body from top to bottom, but also can avoid the burst caused by the flatulence of the protective clothing.

Furthermore, the semiconductor refrigeration fresh air handling unit comprises a shell, a refrigeration chamber, a heat dissipation chamber, a cold air outlet, a filter, a hot air outlet, an air inlet, a cross-flow air cavity, a guide plate, a cross-flow fan, a semiconductor refrigeration sheet, a radiating fin, a controller, a battery box, a storage battery and a connecting buckle, wherein the refrigeration chamber and the heat dissipation chamber are adjacently and independently arranged in the shell; a cold air outlet is arranged at the top of the refrigeration chamber and connected with an air hose; the filter is arranged at the lower part or/and the bottom surface of the outer side surface of the refrigeration chamber, and the filter is detachably and hermetically connected to the refrigeration chamber; the top of the heat dissipation chamber is provided with a hot air outlet, and the bottom of the heat dissipation chamber is provided with an air inlet; the upper parts of the refrigeration chamber and the heat dissipation chamber are both provided with a through-flow air cavity which is surrounded by two flow guide plates, and a detention area is also arranged among the through-flow air cavity, the cold air outlet and the hot air outlet; the cross-flow fan is arranged in the cross-flow air cavity, and under the action of the cross-flow fan, air in the refrigerating chamber and the heat dissipation chamber flows directionally and is discharged upwards through the cross-flow air cavity; the semiconductor refrigerating sheet is arranged between the refrigerating chamber and the heat dissipation chamber, the refrigerating surface of the semiconductor refrigerating sheet faces the refrigerating chamber, and the heat dissipation surface of the semiconductor sheet faces the heat dissipation chamber; the cooling surface and the radiating surface of the semiconductor cooling plate are both provided with radiating fins, and the directions of gap channels on the radiating fins are vertically communicated; the shell is provided with a storage battery for supplying power to the controller through a battery box; the controller is arranged on the front surface of the shell, and the cross-flow fan and the semiconductor refrigeration sheet are electrically connected with the controller; the back of the shell is provided with a connecting eye-splice for mounting the semiconductor refrigeration fresh air handling unit on the ventilation waistband; the semiconductor refrigeration fresh air handling unit adopts the internal space layout with compact structure, and effectively reduces the whole volume of the unit on the premise of not influencing the refrigeration effect.

Furthermore, the left side surface and the right side surface of the shell are respectively provided with a battery box, and a storage battery is detachably arranged in each battery box; 2 storage batteries continuously and alternately supply power to the controller; the battery case sets up on semiconductor refrigeration fresh air handling unit's both sides promptly, and two sets of batteries can be in turn supplied power in succession, accomplish to use one and be equipped with, when a set of battery electric quantity is about to exhaust, will automatic switch to another group battery power supply to remind the person of wearing in time to change that group electric quantity is about to exhaust the battery.

The remote controller is in wireless communication connection with the controller; the remote controller is arranged on the ventilating waistband positioned on the front surface of the body; the controller is arranged on the semiconductor refrigerating fresh air unit, and the semiconductor refrigerating fresh air unit is worn on the back waist, so that a wearer is inconvenient to operate and control; but the remote controller can lead the wearer to come in front of eyes, thereby being convenient and accurate to operate.

Furthermore, the heat dissipation export set up towards left and right both sides to slightly tilt up or level outwards exhaust, make steam difficult by the air intake of refrigeration room inhale, also can not directly blow to the gas transmission hose, thereby can not influence the refrigeration efficiency of refrigeration room.

Furthermore, the ventilating waistband consists of a flexible waistband body, ventilating parts, a waistband buckle and a draw hook, wherein the flexible waistband body is provided with a plurality of ventilating parts and the waistband buckle, the ventilating parts are mainly distributed on two sides of the waist, and the waistband buckle has the function of adjusting the size of the waistline of the ventilating waistband; the ventilating part is provided with a convex and vertical ventilating channel, after the waistband body is tightened, the ventilating part can form a plurality of air passages which are communicated up and down on the waist part, air filled above the waist part can burst the flexible protective clothing and smoothly blow the air to the lower part of the body, and meanwhile, the air pressure in the upper body protective clothing generated by tightening the waistband can be released, so that the protective clothing is prevented from being expanded and broken due to overlarge internal pressure; a draw hook with an upward hook tip is arranged at the outermost convex position at the inner side of the ventilating part, and a transverse hook belt is also arranged at the corresponding position of the waist part of the protective clothing body; when in use, the draw hook is inserted into the draw hook belt from bottom to top, and the part of the protective clothing can be pulled out to form an air channel, and simultaneously the protective clothing can be lifted to prevent falling; the ventilation channel is of a rigid structure, and the cross section of the ventilation channel is semicircular or polygonal, so that the use requirements of different structures are met.

Further, the protective clothing body for from taking the full leakproofness protective clothing of perspective face screen, semiconductor refrigeration new trend unit can be aseptic for protective clothing inside provides, aerobic, nice and cool air conditioning, emergent respiratory hole can provide the interim emergent ventilation channel that accords with the biosafety requirement for protective clothing under emergency, the omnidirectional biosafety protection has been accomplished, do not need worry inside oxygen not enough, breathe to take the air of germ, and inside sultriness leads to the appearance of the condition such as the person's of wearing profuse sweat dripping and high temperature reaction, the face screen is full of aqueous vapor and leads to the vision fuzzy.

The air hose is communicated with the top of the protective suit body hood, so that cold air can flow downwards from the top of the head; the inner side of the protective clothing body hood is suspended with a cold air blocking piece through a flexible rope, the cold air blocking piece is positioned under the outlet of the air conveying hose, and the cold air blocking piece is used for dispersing cold air to blow around the head so as to avoid various body discomfort caused by directly blowing the head of a wearer; the cold air blocking sheet can also guide cold air to the face screen in a directional manner, so that the face screen is prevented from being fogged, and clear observation sight of a wearer is kept; the bottom of the cold air blocking piece is provided with the flexible pad which can protect the head of a wearer, so that the cold air is prevented from penetrating through the cold air blocking piece to cause the local part of the head to be in a low-temperature environment for a long time, and the vibration of the cold air blocking piece is reduced and the pressure of the cold air blocking piece is dispersed.

The controller is used for detecting whether the oxygen content of the input cold air is in an allowable range, and if the oxygen content of the input cold air does not reach the allowable range, the controller can timely alarm and prompt for adjustment, so that a wearer is protected better; the gas transmission hose and the protection suit body demountable installation be connected, realize the modularization setting like this to it is also more convenient to install oxygen sensor, conveniently disinfects semiconductor refrigeration fresh air handling unit and protection suit simultaneously, with used repeatedly and saving spending.

Furthermore, the emergency breathing hole consists of a breathing filtering membrane and an airtight protective membrane; an airtight protective film which is convenient to tear off is pasted outside the respiratory filtration membrane, and the airtight protective film is airtight viscose cloth; the outer layer of the respiratory filtration membrane is waterproof non-woven fabric, the inner layer of the respiratory filtration membrane is melt-blown fabric, and the combined effect of the waterproof non-woven fabric and the melt-blown fabric meets the requirements of KN95 or N95 on filtration efficiency and air flow resistance; the emergency breathing hole is used for providing a self-rescue emergency breathing channel for a wearer when the semiconductor refrigeration fresh air handling unit fails.

The utility model has the advantages that: 1. the protective clothing adopts a full-sealed design, and provides an internal environment with fresh air supply, comfortable temperature and meeting biological safety requirements for a wearer on the premise of ensuring biological safety protection; 2. the waistband for hanging the semiconductor refrigerating fresh air handling unit adopts a brand-new design, and even if the waistband is tightened, the air flow in the protective clothing can not be influenced to run through from top to bottom; 3. the semiconductor refrigeration fresh air handling unit has compact design structure, reasonable air flow organization and excellent refrigeration efficiency, can convey stable and large amount of cold air for the interior of the protective clothing, provides sterile and safe oxygen for the interior of the protective clothing, and simultaneously discharges hot air and moisture in the protective clothing from top to bottom through the exhaust holes; 4. when cold air conveyed by the air conveying hose enters the protective clothing, the cold air can be blocked by the cold air blocking piece and guided to the periphery in a directional mode, cold air is prevented from directly blowing to the head of a wearer, and the face screen can be prevented from being fogged; 5. emergency breathing holes are designed on two sides of the head of the protective clothing, and when the semiconductor refrigeration fresh air handling unit fails, the breathing holes capable of blocking pathogens from entering can be started in an emergency manner, so that an emergency breathing channel is provided for a wearer; 6. the protective clothing body, the ventilation waistband, the gas transmission hose, the semiconductor refrigeration fresh air handling unit, the remote controller and the battery are in modular design, so that the protective clothing is suitable for replacing accessories and is also suitable for being conveniently sterilized and reused, and the use cost is saved.

Drawings

FIG. 1 is a schematic view of the wearing of a positive pressure protective garment with a cooling function according to the present invention;

FIG. 2 is a perspective view of a semiconductor refrigeration fresh air handling unit and a ventilation waistband in the positive pressure protective clothing with a cooling function;

FIG. 3 is a bottom view of a semiconductor refrigeration fresh air handling unit in the positive pressure protective clothing with a cooling function of the utility model;

FIG. 4 is a front longitudinal sectional view of a semiconductor refrigeration fresh air handling unit in the positive pressure protective suit with a cooling function according to the utility model;

FIG. 5 is a schematic structural view of a head cover of a protective garment of the positive pressure protective garment with a cooling function according to the present invention.

Detailed Description

The utility model is described in detail below with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "top", "bottom", "upper", "lower", "left", "right", and the like are based on the directions or positional relationships shown in the drawings, or the directions or positional relationships which are usually placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to be referred to must have a specific direction, a specific direction configuration and operation, and thus, the present invention is not to be construed as being limited.

As shown in fig. 1-4, a positive pressure protective clothing with a cooling function comprises a protective clothing body 1, a ventilating belt 2, a semiconductor refrigerating fresh air unit 3, an air hose 4, an emergency breathing hole 5, a remote controller 6, a cold air blocking sheet 7, a flexible cushion 8, a flexible rope 9 and an exhaust protection hole 11, wherein the protective clothing body 1 is a full-sealing protective clothing with a see-through screen. Semiconductor refrigeration fresh air handling unit 3 wear at user's waist through ventilating waistband 2, semiconductor refrigeration fresh air handling unit's 3 top is passed through gas transmission hose 4 and is provided the air conditioning that accords with biological safety requirement for protection clothes body 1 is inside. The semiconductor refrigeration fresh air handling unit 3 is provided with a remote controller 6, and the remote controller 6 is in wireless communication connection with a controller on the refrigerator 3; the remote controller 6 is arranged on the front side of the ventilating belt 2, a refrigerating power adjusting button, an air supply size adjusting button, an indicator light and a display screen are arranged on the remote controller 6, and information such as electric quantity, ventilation quantity, oxygen content and temperature and humidity (a semiconductor refrigerating fresh air handling unit is provided with a temperature and humidity sensor) is displayed on the display screen. The connection between the gas hose 4 and the semiconductor refrigeration fresh air handling unit 3 and the protective clothing body 1 is detachable and tightly installed and is hermetically connected through a connecting bayonet; the connection position with the body 1 of the protective suit is at the top of the hood, so that the cold air can pass through from top to bottom. As shown in fig. 5, a bowl-shaped cold air blocking piece 7 is hung on the top of the inner side of the hood of the protective suit body 1 through a flexible rope 9, the distance between the cold air blocking piece 7 and the inner side surface of the hood of the protective suit body 1 is 1-2 cm, after cold air is blown in, the hood can be jacked up, the cold air is blown down along an air guide channel on the top surface of the cold air blocking piece 7 in a balanced and scattered manner, meanwhile, enough cold air is guaranteed to be blown to a face screen, and the face screen is prevented from forming water mist to influence the sight; the cold air blocking sheet 7 also prevents the cold air from directly blowing to the top of the user's head. The bottom of the cold air blocking sheet 7 is also provided with a flexible pad 8, and the flexible pad 8 plays a role in blocking the low-temperature conduction of the injected cold air to the head besides enabling the head of a wearer to be comfortable. The outer side (4-6 CM below or above the kneecap) of the leg part of the protective suit body 1 is provided with an exhaust protective hole 11, so that a directional airflow channel from top to bottom is formed in the protective suit, cold air entering the protective suit can be conducted to the whole body, and carbon dioxide, heat and moisture generated in the protective suit are exhausted out of the protective suit; the outer layer of the exhaust protective hole 11 is waterproof non-woven fabric, the inner layer is melt-blown fabric, and the combination of the exhaust protective hole and the melt-blown fabric has the function of enabling air to be smoothly exhausted out of the protective clothing but preventing pathogens from invading. In order to be in emergency, for example, when the semiconductor refrigeration fresh air handling unit breaks down or does not have electricity, and fresh and safe air cannot be provided in the protective clothing body 1, in order to ensure that a wearer can also breathe external safe air autonomously, emergency breathing holes 5 are respectively arranged on two sides of the head of the protective clothing body 1, each emergency breathing hole 5 consists of a breathing filtering membrane 51 and an airtight protective membrane 52, and the airtight protective membrane 52 which is conveniently torn off is pasted outside the breathing filtering membrane 51. The airtight protective film 52 is airtight viscose cloth; the outer layer of the respiration filtering membrane is a waterproof non-woven fabric, the inner layer of the respiration filtering membrane is melt-blown fabric, and the combined effect of the waterproof non-woven fabric and the melt-blown fabric meets the requirements of KN95 or N95 on filtering efficiency and air flow resistance; under the non-emergency condition, the airtight protective film 52 is protectively blocked the breathing filtration membrane 51, and when the protective garment is in the emergency condition, the wearing personnel can conveniently and directly tear off the airtight protective film 52, so that the personnel in the protective garment can breathe according with the biological safety requirement through the breathing filtration membrane 51.

The semiconductor refrigeration fresh air handling unit 3 of the present embodiment includes a casing 31, a refrigeration chamber 32, a heat dissipation chamber 33, a cold air outlet 34, a filter 35, a hot air outlet 36, an air inlet 37, a cross-flow air cavity 38, a flow guide plate 39, a cross-flow fan 310, a semiconductor refrigeration sheet 311, a heat dissipation sheet 312, a controller 313, a battery box 314, a storage battery 315, and a connection buckle 316, wherein the refrigeration chamber 32 and the heat dissipation chamber 33 are adjacently and independently disposed inside the casing 31, the refrigeration chamber 32 is located outside, the heat dissipation chamber 33 is located inside, and the refrigeration chamber 32 is disposed outside to facilitate sufficient large-area air intake. The width of the cooling chamber 32 is larger than that of the heat dissipation chamber 33, but the thickness of the housing 31 is controlled within 5cm to 10 cm. The top of the refrigeration chamber 32 is provided with a cold air outlet 34, the cold air outlet 34 is connected with the air delivery hose 4, and the air delivery hose 4 is a heat preservation pipe, so that the cold air can be prevented from being heated during transmission, and condensed water drops are generated outside the pipe wall. The lower part and the bottom surface (the front surface and the bottom surface of the shell) of the outer side surface of the refrigeration chamber 32 are provided with filters 35, and the filters 35 are HEPA filters which can prevent pathogens from entering; the HEPA adopts the removable formula setting for semiconductor refrigeration fresh air handling unit 3 can used repeatedly. The top of the heat dissipation chamber 33 is provided with a hot air outlet 36, the hot air outlet 36 discharges hot air from the left side and the right side and obliquely upwards, and the hot air which is upwards discharged is prevented from directly blowing to the air conveying hose 4 and being sucked by the filter 35; the bottom of the heat dissipation chamber 33 is provided with an air inlet 37, and the air inlet 37 is an open opening with a size similar to that of the bottom of the heat dissipation chamber 33, so that the air can be freely sucked into the heat dissipation chamber 33 and take away the heat therein. The upper parts of the refrigerating chamber 32 and the heat dissipation chamber 33 are both provided with a through-flow air cavity 38, the through-flow air cavity 38 is surrounded by two arc-shaped guide plates 39, and the inner arcs of the guide plates 39 are arranged upwards; an air inlet and an air outlet are arranged on the through-flow air cavity 38, the air inlet is arranged at the lower part, the air outlet is arranged at the upper part, and the air passing through the through-flow air cavity 38 can only move upwards in the same direction until entering the air hose 4 or being discharged. The cross flow fan 310 is installed in the cross flow air chamber 38, and the cold air generated in the cooling compartment 32 is directionally guided into the air hose 4 and the heat generated in the heat radiating compartment 33 is directionally exhausted out of the heat radiating compartment by the action of the cross flow fan 310. A detention area is also arranged between the cross-flow air cavity 38 and the cold air outlet 34 and the hot air outlet 36, and cold air or hot air can be exhausted after being temporarily detented in the detention area, so that the condition that the cold air or the hot air cannot be blown out due to the fact that the air is rebounded and blown back to the air outlet of the cross-flow air cavity 38 is avoided. The semiconductor refrigerating sheet 311 is arranged between the refrigerating chamber 32 and the heat radiating chamber 33, the refrigerating surface of the semiconductor refrigerating sheet 311 faces the refrigerating chamber 32, and the heat radiating surface faces the heat radiating chamber 33; the cooling surface and the heat dissipation surface of the semiconductor cooling plate 311 are both provided with heat dissipation fins 312, and the heat dissipation fins 312 are vertically arranged in the same direction as the air flow direction, so that the passing of the air flow is not greatly influenced. The shell 31 is provided with a storage battery 315 for supplying power to the controller 313 through a battery box 314, the specific installation structure is that the left side surface and the right side surface of the shell 31 are respectively provided with one battery box 314, and the storage battery 315 is detachably arranged in the battery boxes 314; the 2 batteries 315 continuously and alternately supply power to the controller 313, namely the batteries 315 are used for standby, when the electric quantity of one group of batteries is about to be exhausted, the batteries are automatically switched to the other group of batteries for supplying power, and a wearer is reminded to replace the batteries with the electric quantity about to be exhausted in time, so that the semiconductor unit can work continuously for a long time. The controller 314 is arranged on the front surface of the shell 31, and the controller 314 is provided with buttons and working indicator lamps such as a switch, power adjustment, wind power adjustment, time adjustment and the like and is provided with an alarm. The cross-flow fan 310 and the semiconductor refrigeration sheet 311 are electrically connected with the controller 313, and the working power and the working time of the semiconductor refrigeration sheet 311 and the cross-flow fan 310 are adjusted through the controller 313. The back of the shell 31 is provided with a connecting buckle 316 for installing the semiconductor refrigeration fresh air handling unit 3 on the ventilation belt 2.

The ventilating waistband 2 of the embodiment comprises a flexible waistband body 21, ventilating parts 22, a waistband buckle 23 and a draw hook 24, wherein six ventilating parts 22 and one waistband buckle 23 are arranged on the flexible waistband body 21; the ventilation part 22 is vertically arranged, the whole body is of a rigid structure, the cross section of the ventilation channel is a semicircle, and after the ventilation waistband 2 is fastened, cold air blown from the top of the protective clothing can penetrate to the leg part from top to bottom through the ventilation part 22; the bottom of the inner side of the ventilation part 22 is upwards provided with a draw hook 24 for drawing the protective clothing, a hook belt is arranged at the corresponding position of the protective clothing body, the draw hook is inserted into the hook belt from bottom to top during use, part of the protective clothing is hooked into the ventilation part to form a ventilation channel, so that cold air can smoothly pass through the waistband and flow to the legs when being filled into the upper part of the protective clothing, and meanwhile, the protective clothing can be lifted to prevent falling.

In order to ensure safe use, sensors such as an oxygen sensor, a temperature and humidity sensor, a germ detection sensor and the like should be arranged inside the protective clothing. Be provided with oxygen sensor 10 among the technical scheme of this embodiment, oxygen sensor 10 sets up at gas transmission hose 4 exit, and oxygen sensor 10 and controller 313 electric connection are mainly used for detecting whether inside oxygen content of input protective clothing and temperature reach standard, and controller 313 can send out the police dispatch newspaper immediately when not reaching standard.

According to the technical scheme, the positive pressure protective clothing with the cooling function can change the refrigerating chamber into the heat dissipation chamber by changing the refrigerating and heating directions of the semiconductor refrigerating sheet, so that the design of the positive pressure protective clothing with the heating function is realized, and the protective clothing can be suitable for outdoor work in cold regions.

While particular embodiments of the present invention have been illustrated and described in detail, it should be noted that various changes and modifications could be made to the embodiments described above without departing from the spirit of the utility model and the scope of the appended claims.

Claims

1. The positive pressure protective clothing with the cooling function is characterized by comprising a protective clothing body (1), a ventilation waistband (2), a semiconductor refrigeration fresh air unit (3), an air hose (4), an emergency breathing hole (5) and an exhaust protection hole (11), wherein the semiconductor refrigeration fresh air unit (3) is worn on the waist of a user through the ventilation waistband (2), and the top of the semiconductor refrigeration fresh air unit (3) provides cold air meeting biological safety requirements for the interior of the protective clothing body (1) through the air hose (4); the side of the head of the protective clothing body (1) is provided with an emergency breathing hole (5), and the outer side of the trouser legs of the protective clothing body (1) is provided with an exhaust protective hole (11).

2. The positive pressure protective clothing with the cooling function according to claim 1, wherein the semiconductor refrigerating fresh air unit (3) comprises a shell (31), a refrigerating chamber (32), a heat dissipation chamber (33), a cold air outlet (34), a filter (35), a hot air outlet (36), an air inlet (37), a cross-flow air cavity (38), a guide plate (39), a cross-flow fan (310), a semiconductor refrigerating sheet (311), a heat dissipation sheet (312), a controller (313), a battery box (314), a storage battery (315) and a connecting buckle (316), wherein the refrigerating chamber (32) and the heat dissipation chamber (33) are adjacently and independently arranged inside the shell (31); a cold air outlet (34) is arranged on the top of the refrigeration chamber (32), and the cold air outlet (34) is connected with the air conveying hose (4); the filter (35) is arranged at the lower part or/and the bottom surface of the outer side surface of the refrigeration chamber (32), and the filter (35) is detachably and hermetically connected to the refrigeration chamber (32); a hot air outlet (36) is arranged at the top of the heat dissipation chamber (33), and an air inlet (37) is arranged at the bottom of the heat dissipation chamber (33); the upper parts of the refrigeration chamber (32) and the heat dissipation chamber (33) are provided with through-flow air cavities (38), the through-flow air cavities (38) are surrounded by two guide plates (39), and a detention area is arranged between an outlet of each through-flow air cavity (38) and a cold air outlet (34) or a hot air outlet (36); the cross-flow fan (310) is arranged in the cross-flow air cavity (38), and under the action of the cross-flow fan (310), air in the refrigeration chamber (32) and the heat dissipation chamber (33) flows directionally and is discharged upwards through the cross-flow air cavity (38); the semiconductor refrigerating sheet (311) is arranged between the refrigerating chamber (32) and the heat radiating chamber (33), the refrigerating surface of the semiconductor refrigerating sheet (311) faces the refrigerating chamber (32), and the heat radiating surface of the semiconductor refrigerating sheet (311) faces the heat radiating chamber (33); the refrigerating surface and the radiating surface of the semiconductor refrigerating sheet (311) are both provided with radiating fins (312), and the gap direction of the radiating fins (312) is a vertical direction; a storage battery (315) for supplying power to the controller (313) is arranged on the shell (31) through a battery box (314); the controller (313) is arranged on the front surface of the shell (31), and the cross-flow fan (310) and the semiconductor refrigeration piece (311) are electrically connected with the controller (313); the back of the shell (31) is provided with a connecting eye-splice (316) for installing the semiconductor refrigeration fresh air handling unit (3) on the ventilation waistband (2).

3. The positive pressure protective clothing with the cooling function as claimed in claim 2, wherein a battery box (314) is arranged on each of the left and right side surfaces of the shell (31), and a storage battery (315) is detachably mounted in the battery box (314); 2 said accumulators (315) supply the controller (313) continuously and alternately.

4. The positive pressure protective clothing with the cooling function according to claim 3, further comprising a remote controller (6), wherein the remote controller (6) is in wireless communication connection with the controller (313); the remote controller (6) is inserted on the ventilating belt (2) positioned on the front of the body.

5. The positive pressure protective clothing with the cooling function as claimed in claim 4, wherein the hot air outlets (36) are arranged towards the left and right sides and slightly inclined upwards or horizontally exhausting outwards.

6. The positive pressure protective clothing with the cooling function according to any one of claims 1 to 5, wherein the ventilation waistband (2) consists of a flexible waistband body (21), ventilation parts (22), a waistband buckle (23) and a draw hook (24), and the flexible waistband body (21) is provided with a plurality of ventilation parts (22) and a waistband buckle (23); the ventilating part (22) is provided with a convex and vertical ventilating channel, and after the ventilating waistband (2) is tightened, cold air blown from the top of the protective clothing can pass through the waistband (2) from top to bottom to reach the legs through the ventilating part (22); the bottom of the inner side of the ventilation part (22) is upwards provided with a draw hook (24) for drawing the protective clothing.

7. The positive pressure protective clothing with the cooling function according to claim 6, wherein the protective clothing body (1) is a full-sealed protective clothing with an anti-fogging transparent face screen.

8. The positive pressure protective clothing with the cooling function as claimed in claim 7, further comprising a cold air blocking sheet (7), a flexible cushion (8) and a flexible rope (9), wherein the air hose (4) is communicated with the top of the head cover of the protective clothing body (1); the top of the inner side of the hood of the protective suit body (1) is suspended with a cold air blocking sheet (7) through a plurality of flexible ropes (9), the cold air blocking sheet (7) is positioned under the outlet of the gas transmission hose (4), and the cold air blocking sheet (7) is provided with an airflow diversion groove; a flexible pad (8) is arranged under the cold air blocking sheet (7).

9. The positive pressure protective clothing with the cooling function according to claim 8, further comprising an oxygen sensor (10), wherein the oxygen sensor (10) is arranged at an outlet of the gas transmission hose (4), and the oxygen sensor (10) is electrically connected with the controller (313); the air hose (4) is detachably connected with the protective clothing body (1).

10. The positive pressure protective clothing with the cooling function according to claim 9, further comprising an emergency breathing hole (5) composed of a breathing filtering membrane (51) and an air-tight protective membrane (52); an airtight protective film (52) which is convenient to tear off is pasted outside the breathing filter membrane (51); the outer layer of the respiratory filtration membrane (51) is waterproof non-woven fabric, and the inner layer is melt-blown fabric.