CN212788860U

CN212788860U - Antifog defogging goggles

Info

Publication number: CN212788860U
Application number: CN202020817651.0U
Authority: CN
Inventors: 廖景峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-03-26
Anticipated expiration: 2030-05-18

Abstract

The utility model discloses an antifog defogging goggles, the goggles is reformed by finished goggles, uses the high-pressure air current that miniature air supply produced, sprays on the goggles lens through the air current distributor, clears away fog, can guarantee the antifog effect of defogging conscientiously, the utility model discloses a goggles has three kinds of operational modes, can satisfy different users' use custom; there are two pressure guarantee mechanisms, a high-efficiency air flow filtration biological guarantee mechanism, which can guarantee the safety of users and machines.

Description

Antifog defogging goggles

Technical Field

The utility model relates to a medical health and labor protection field. And more particularly to an anti-fog, defogging goggle.

Background

The goggles are fogged after being worn, which is a common knowledge problem which often confuses users, and after the goggles are fogged, a lot of inconvenience is brought to the users, especially in the medical environment, the lives of the users or patients can be seriously threatened. The antifogging of the goggles at present is basically made on lens materials and coatings, particularly the latter, hundreds of lens antifogging agents are on the market, a plurality of antifogging courses are also on the network, and a plurality of antifogging skills are still distributed in the medical field. The existing antifogging technology of the goggles has poor or no effect in specific medical environments, and particularly shows that the goggles after the technology are used not only fog, but also have a large number of small water drops on lenses, so that the lenses cannot be taken off and wiped in severe infectious environments, and once the goggles fog, the goggles only can be kept alive. Therefore, there is a need for goggles that reliably ensure non-fogging for medical personnel.

The principle that the goggles can fog after being worn is similar to the principle that the automobile windshield fog in winter, the working principle of the utility model is the same as the principle that the automobile windshield is demisted-during fog, high-pressure air flow conveyed by a micro fan or an air pump is sprayed on the goggles to take away water vapor. Unlike automotive windshield demisting: behind the lens of the goggles is the eye, the most important and most sensitive organ of the person, and therefore, it is considered desirable that the delivered high pressure air stream not only provides defogging but also does not harm the eyes.

Disclosure of Invention

The to-be-solved technical scheme of the utility model is: to provide a goggle which is prefabricated with a special air passage, and air flow is jetted onto the lens at a specific angle, only little air flow can be rebounded to eyes, and the goggle does not have a difference from a breeze brushing surface and does not hurt the eyes.

An anti-fog, defogging goggle is formed by the modification of finished goggles, and the parts added by the modification comprise: the device comprises an airflow distributor, a nozzle bracket, an airflow conduit, a micro air source and a case;

the air flow distributor and the nozzle bracket are core components of the utility model, are positioned on the upper cover of the goggles and are used for evenly distributing the air delivered by the micro air source to the two lenses;

the air flow distributor is strip-shaped in appearance, two groove-shaped spaces, namely a front groove and a rear groove, which are parallel in the front and the rear are arranged in the air flow distributor, the front groove and the rear groove are communicated at the middle position, air can freely enter and exit the two spaces, two air guide pipe installing openings with rectangular or elliptical cross sections are arranged at two ends of the bottom of the front groove, and one end of the rear groove extends into a bent round pipe which is an air flow input pipe and is used for being connected with an air flow guide pipe; the bottom of the airflow distributor extends to the periphery to form an irregular sheet shape;

the nozzle bracket is also in a strip shape, the upper end of the nozzle bracket is provided with two upper air guide tubes with rectangular or oval cross sections, the upper air guide tubes can be tightly matched and connected with the air guide tube mounting openings of the airflow distributor and transfer airflow from the airflow distributor to the nozzles, and the height of each upper air guide tube is 1-2 mm more than the thickness of the plastic layer of the upper cover of the goggles; the lower end of the nozzle bracket is provided with a lower air duct and a nozzle, the lower air duct is a continuation of the upper air duct, the distance between the left air duct and the right air duct is in the range of the interpupillary distance of a person, the nozzle is a nozzle in which the lower air duct extends towards the bending of the mirror surface of the goggles, the middle space is in a wide slit shape and is a nozzle opening, the area of the nozzle opening is smaller than the sectional area of the inner cavity of the air duct, the nozzle; the surface formed by the upper edge and the lower edge of the nozzle forms an acute angle with the lens of the goggles;

the power supply of a micro air source, a differential pressure sensor (or a differential pressure switch) and an alarm horn are prefabricated on a comprehensive functional circuit board; the miniature air source, the comprehensive function circuit board and the pressure release valve are packaged in a case, and the bottom of the case is provided with heat dissipation holes which are used as an emergent pressure release air exhaust channel besides heat dissipation; the pressure relief valve and the measuring end of the differential pressure sensor are connected to the air outlet end of the miniature air source through an air exhaust to perform safety protection and airflow regulation functions; the left side of the case is provided with a battery jar with a protective door; the right side surface of the case is provided with a power switch, and the inside of the case is connected with the comprehensive function circuit board; the air outlet pipe of the case, the power indicator light and the work indicator light are arranged on the case in advance; the air outlet pipe of the case is connected with the air outlet end of the micro air source in the case through the main flow path of the air exhaust.

The airflow guide pipe is a flexible rubber pipe, and the pipe diameter of the airflow guide pipe is matched with that of an air outlet pipe of the case.

Preferably, a circuit type airflow adjusting module is prefabricated on the comprehensive function circuit board, a circuit type airflow adjusting knob is installed on the right side face of the case, and the circuit type airflow adjusting knob is connected with the comprehensive function circuit board inside the case.

Preferably, an air path type air flow regulating valve is further arranged in the case, and the pressure release valve, the air path type air flow regulating valve and the measuring end of the differential pressure sensor are connected to the air outlet end of the micro air source through an air exhaust with 3 branches so as to perform safety protection and air flow regulating functions; the right side surface of the case is provided with a gas path type gas flow adjusting knob, the inside of the case is connected with the gas path type gas flow adjusting knob, and the case gas outlet pipe is connected with the gas outlet end of the micro gas source in the case through a main flow path of a gas exhaust with 3 branches.

Preferably, a wireless receiving control module and an electronic cycle timing control module are also prefabricated on the comprehensive function circuit board; an electronic cycle timing controller display screen, an electronic cycle timing controller setting button and a corresponding indicator light are arranged on the case; the electronic cycle timing controller display screen and the electronic cycle timing controller setting button are connected with the comprehensive function circuit board in the mainframe box, a user sets the air source running time and the running interval time through the electronic cycle timing controller setting button, and the setting parameters are displayed on the electronic cycle timing controller display screen; after the arrangement is finished, the utility model automatically executes the antifogging and demisting tasks of the goggles; if no parameter is set, the utility model discloses not use the automatic control mode, but use the manual control mode of remote control or mainframe box side knob.

Preferably, the micro air source is a micro air pump or a micro turbo fan; and the bottom of the case is provided with an air inlet filter which is connected with a micro air source air inlet in the case.

Preferably, one side of the case is concave to adapt to the shape of the waist of a human body, and a hanging buckle is arranged on the concave side and used for penetrating through a waistband; the battery adopts the lithium cell, the quick replacement of being convenient for.

Preferably, the surface formed by the upper edge and the lower edge of the spout forms an acute angle of less than 45 degrees with the goggle lens.

Preferably, the combination of the downcomer and the nozzle is of two types: short-mouthed plates and long-mouthed plates. The upper edge of the nozzle inclined plane of the short nozzle plate is horizontally aligned with the lower edge of the mirror frame, the rest part of the nozzle inclined plane is below the lower edge of the mirror frame, and the sprayed air flow can reach the upper 1/3 part of the mirror surface and flow downwards along the lens at a high speed; the short-mouth nozzle is far away from the center of the lens, so that a better defogging and antifogging effect can be achieved only by needing larger air flow, and the short-mouth nozzle has the advantages that wearing of the myopia glasses is not influenced, so that the short-mouth nozzle is mainly used for users wearing the glasses; the appearance and the function of long mouth version are the same with short mouth version, and the difference is that the air duct is longer down, on the upper and lower distance, prolongs 4~10mm downwards than short mouth version, because of long mouth version nozzle is nearer from the lens center, only needs less air flow, can obtain fine defogging antifog effect.

Preferably, the bottom of the air flow distributor extends to the periphery to form an irregular sheet shape; small round holes are pre-arranged at two ends and near the forehead part and are used for connecting and fixing holes, the flaky middle layer of the nozzle support is matched with the bottom of the airflow distributor, and the small round holes are arranged at the same positions as the connecting and fixing holes at the bottom of the airflow distributor.

The mounting template tool for modifying the antifogging and demisting goggles consists of a mounting template and two tool bits; the mounting template is a strip-shaped metal plate, two upper air guide pipe cutter head holes matched with the upper air guide pipe position and the appearance homogeneous phase of the nozzle support are formed in the mounting template, a plurality of connecting and fixing cutter head holes with the same diameter, position and number as those of the connecting and fixing holes in the nozzle support are formed in the mounting template, the cutter heads are made of metal, are hollow, are shaped to be conformal with the air guide pipe cutter head holes and the connecting and fixing cutter head holes respectively, and when the mounting template is used, the corresponding cutter heads pass through the corresponding cutter head holes in a clamping or hammering mode, and are precisely opened on the soft goggles.

After the hole is opened, the upper air duct of the nozzle bracket penetrates through a corresponding hole of the goggles upper cover, then the air duct mounting port sleeve of the modified airflow distributor covers the upper air duct, the micro screw penetrates through the connecting and fixing holes in the airflow distributor and the nozzle bracket, the nut is screwed and fixed, and the modified airflow distributor, the goggles upper cover and the nozzle bracket are connected into a whole through the operation.

Preferably, the air flow guide pipe is a soft rubber pipe slightly longer than the upper half of the human body, and the pipe diameter of the soft rubber pipe is matched with the air source output pipe.

The utility model has the advantages that: (1) the utility model discloses when using, can adopt above-mentioned tolerance regulation and control device to regulate and control the airflow that sprays onto the lens to adapt to different users' hobby, someone likes the airflow big a bit, and someone is more sensitive, likes the airflow little a bit. There are two ways of adjustment: one is to regulate the working condition of the machine by regulating the voltage or current frequency supplied to the micro air source through a circuit type regulating device, thereby regulating the air quantity output by the air source, and the regulating mode is commonly used on the oxygen supply device of the aquarium; the other is adjusted by an air path type adjusting device, a shunt valve is arranged on the air path, so that part of the air output by the micro air source can be shunted before reaching the air flow distributor.

(2) The utility model discloses at the installation air inlet filter of machine bottom of the case portion, can conveniently change, simultaneously, the kind of filter can be selected according to the purpose difference that uses for when ordinary industrial use or manual preparation, select particulate filter can, when being used for the eye protection under the infectious environment, need choose high-efficient combined filter for use-wherein the filter media that can filter the virus that will have at least, make filter media, HEPA (high efficiency air cleaner) of N95 gauze mask or N99 gauze mask for example.

(3) The utility model discloses a miniature air supply opens stops control can adopt parallel three routes control-all the way is the switch knob of manual regulation machine box surface, and another way is the remote control of using wireless control subassembly, and the third route is that preset miniature air supply operating duration and start interval time through electronic cycle timing controller module and realize automatic control. Of course, only either or both of the control modes may be selected as necessary for cost saving.

(4) The utility model discloses set up the relief valve, this relief valve is a check valve that has great opening pressure, installs in the gas circuit of miniature air supply output, and when the air current distributor on the goggles appeared the gas circuit and blockked up, the pressure can obviously increase in the gas circuit, and when pressure reached the opening pressure of relief valve, the relief valve was opened, high pressure in the discharge gas circuit, protection eyes and air supply machine.

(5) The utility model discloses a differential pressure sensor external member include differential pressure sensor and miniature loudspeaker, also the utility model discloses an one of the safety protection measure. The sensor measuring end is installed in the gas circuit, and signal output part passes through the comprehensive function circuit board and is connected with miniature loudspeaker, and when the gas circuit high pressure of goggles takes place, will trigger sensor signal output part voltage synchro variation, when reaching miniature loudspeaker's operating voltage, loudspeaker sound production was reported to the police, reminds the user. In order to reduce the product cost, a differential pressure switch can be used to replace a differential pressure sensor.

The inventor points out that the utility model discloses a miniature air pump, miniature turbofan, differential pressure sensor external member, relief valve, electronic cycle timing control module, wireless control subassembly, two kinds of tolerance adjusting control device, battery, all are ripe technique, can all buy the finished product on the market, also can customize according to producer's requirement.

Drawings

FIG. 1 is a right front oblique view of the long mouth version of the goggle of the present invention with the airflow distributor removed;

fig. 2 is a left rear oblique bottom view of the goggle air flow distributor + nozzle mount of the present invention;

fig. 3 is a bottom view of the airflow distributor of the present invention;

FIG. 4 is a top sectional view of the airflow distributor of the present invention;

FIG. 5 is a right side plan view of the nozzle holder of the present invention;

fig. 6 is a top right view of the nozzle holder of the present invention;

fig. 7 is a schematic view of an airflow distributor mounting template according to the present invention;

fig. 8 is a schematic view of the chassis of the present invention.

In the figure: a01 is a goggles upper cover, a02 is a goggles frame, a03 is an upper air duct, a04 is a lower air duct, a05 is a nozzle, a06 is a nozzle, a07 is a front groove, a08 is a rear groove, a09 is an air duct mounting port, a10 is an air flow input pipe, a11 is a connecting and fixing hole, a12 is an air flow distributor, a13 is a nozzle bracket, a14 is an upper air duct cutter head hole, and a15 is a connecting and fixing cutter head hole; c01 is a case air outlet pipe, c02 is an electronic cycle timing controller display screen, c03 is an electronic cycle timing controller setting button (three in parallel), c04 is an air circuit type air flow adjusting knob, and c05 is a power switch and a circuit type air flow adjusting knob.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

the utility model discloses constitute by following part: the device comprises a micro air source, an air flow adjusting and controlling device, an air inlet filter, a battery, goggles, an air flow distributor, a nozzle bracket, an air flow conduit, a wireless control assembly, a pressure release valve, a pressure difference sensor suite, an electronic circulation timing controller module, a case and an air flow distributor installation template tool.

The micro air source is a micro air pump, and the power of the micro air source is supplied by a battery.

The power supply of the micro air source, the circuit type air flow adjusting module, the wireless receiving control module, the electronic circulation timing control module, the pressure difference sensor and the alarm horn are prefabricated on a comprehensive functional circuit board.

The miniature air source, the comprehensive function circuit board, the pressure release valve and the air path type air flow regulating valve are packaged in a rectangular box, the box is called as a case, one side of the case is sunken to adapt to the appearance of the waist of a human body, and a hanging buckle is arranged on the sunken side and used for penetrating through a waistband. The air inlet filter is installed at the bottom of the case, the battery is installed in a battery jar on the left side of the case, and the battery is designed in an embedded quick-mounting and quick-dismounting manner similar to a digital camera, so that the quick replacement is convenient. The heat dissipation holes are also manufactured at the bottom of the mainframe box and are used as a channel for discharging shunting gas and discharging emergency pressure relief gas besides heat dissipation.

The pressure release valve, the gas path type gas flow regulating valve and the measuring end of the differential pressure sensor are connected to the gas outlet end of the micro gas source through a gas exhaust with 3 branches to execute the functions of safety protection and gas flow regulation.

The right side surface of the case is provided with an air passage type air flow adjusting knob c04, a power switch and a circuit type air flow adjusting knob c 05. The inside of the case is respectively connected with the gas path type gas flow regulating valve and the comprehensive function circuit board. The air outlet pipe c01 of the case, the display screen c02 of the electronic cycle timing controller, the setting button c03 of the electronic cycle timing controller and various indicator lamps (not shown) are arranged on the case. The case outlet pipe c01 is connected with the outlet end of the micro air source through a main flow path of the air exhaust with 3 branches in the case. An electronic cycle timing controller display screen c02 and an electronic cycle timing controller setting button c03 are connected with a comprehensive function circuit board in the case, a user sets the air source running time and the running interval time through the electronic cycle timing controller setting button c03, and setting parameters are displayed on the electronic cycle timing controller display screen c 02. After the setting is finished, the antifogging and demisting tasks of the goggles are automatically executed. If no parameter is set, it indicates that the automatic control mode is not used, but the remote control or manual control mode of the main cabinet side knob is used.

The air flow distributor a12 and nozzle mount a13 are located on the goggle upper cover a01 for evenly distributing the high-pressure air delivered by the air supply machine over the two lenses. The air flow distributor a12 is long strip shaped, and has two parallel front and back groove-shaped spaces, i.e. front groove a07 and back groove a08, which are communicated with each other at the middle position, and the air can freely enter and exit the two spaces, and two air duct mounting ports a09 with rectangular or elliptical cross section are arranged at the two ends of the bottom of the front groove a07, which can be tightly matched and connected with the upper air duct a03 of the nozzle bracket a 13. One end of the rear groove a08 is extended to be a curved circular tube, which is an air input tube a10, for connecting with an air guide tube. The bottom of the air flow distributor extends to the periphery to form an irregular sheet shape, and small round holes are preset at two ends and the near-forehead part and are used as connecting and fixing holes for connecting and fixing with a nozzle bracket a13 which is described below.

The nozzle bracket a13 is also long-bar in appearance, the upper end is provided with two upper air ducts a03 with rectangular or oval cross sections, the upper air ducts can be tightly matched and connected with the air duct mounting port a09 of the air flow distributor a12, the air flow from the air flow distributor a12 is transferred to the nozzle a05, and the height of the nozzle bracket a13 is 1-2 mm more than the thickness of the plastic layer of the goggles upper cover a 01. The lower end of the nozzle bracket a13 is provided with a lower air duct a04 and a nozzle a05, the lower air duct a04 is the continuation of the upper air duct a03, the distance between the left air duct and the right air duct is the same as the distance between pupils of a person, the nozzle a05 is the bending extension of the lower air duct a04 towards the mirror surface, the middle space is in a wide slit shape and is a nozzle a06, the area of the nozzle is much smaller than the sectional area of the inner cavity of the air duct, the air flow can be favorably collected, and the impact. The upper and lower edges of the nozzle opening a06 form a face that is at an acute angle to the goggle lens to ensure that after the high velocity air stream from the nozzle opening impacts the lens, most of the air stream flows down the lens, and the acute angle is preferably less than 45 degrees.

The combination of the above-described lower airway tube a04 and nozzle a05 is of two types: short-mouthed plates and long-mouthed plates. The upper edge of the inclined plane of the nozzle a05 of the short-nozzle plate is horizontally aligned with the lower edge of the lens frame a02, the rest part of the inclined plane of the nozzle a05 is below the lower edge of the lens frame a02, the sprayed air flow can reach the upper 1/3 part of the lens surface and flow downwards along the lens at high speed, the short-nozzle plate nozzle is far away from the center of the lens, and a large air flow is needed to achieve a good defogging and anti-fogging effect, and the short-nozzle plate nozzle has the advantages that the wearing of the myopia glasses is not influenced, so that the short-nozzle plate nozzle is; the appearance and the function of long mouth version are the same with short mouth version, and the difference is that air duct a04 is longer down, on the upper and lower distance, prolongs 4~10mm downwards than short mouth version, because of long mouth version nozzle is nearer from the lens center, only needs less air flow, can obtain fine defogging antifog effect.

The middle layer of the nozzle support a13 is shaped with the bottom of the air flow distributor a12, and is provided with a small round hole at the same position as the connecting and fixing hole a11 at the bottom of the air flow distributor a12,

when the finished goggles are modified, an airflow distributor installation template tool is needed, and the tool consists of an installation template and two tool bits. The mounting template is a long strip-shaped metal plate, two upper air guide pipe cutter head holes a14 matched with the upper air guide pipe a03 of the nozzle support a13 in position and shape are formed in the mounting template, a plurality of connecting and fixing cutter head holes a15 with the same diameter, position and number as the connecting and fixing holes a11 in the nozzle support a13 are formed in the mounting template, the cutter heads are made of metal and are hollow, the cutter heads respectively conform to the two cutter head holes, and the corresponding cutter heads pass through the two cutter head holes and are precisely punched by using a clamping or hammering mode. After the holes are opened, the upper air duct a03 of the nozzle bracket a13 passes through a corresponding hole of the goggles upper cover a01, then the air duct mounting port a09 of the air flow distributor a12 is sleeved on the upper air duct a03, a miniature screw passes through the air flow distributor a12 and the connecting and fixing hole a11 on the nozzle bracket a13, a nut is screwed and fixed, and through the operation, the air flow distributor a12, the goggles upper cover a01 and the nozzle bracket a13 are connected into a whole.

The utility model discloses a use method of goggles:

firstly, the short-mouth plate or the long-mouth plate antifogging and demisting goggles are selected according to whether a user wears the myopia glasses.

Secondly decide the utility model discloses the mode that will operate: an automatic control mode or a manual control mode, if the automatic control mode is selected, the micro air supply operation time and the operation interval time are set through the electronic cycle timing controller setting button c 03.

The waistband is threaded through the hanging buckle on the concave surface of the mainframe box to fix the mainframe box on the waist. The air flow guide pipe is connected with an air outlet pipe c01 of a case on the case and an air flow input pipe a10 on the air flow distributor, the goggles are worn in a conventional mode, a power switch and a circuit type air flow adjusting knob c05 are rotated to a power supply opening position, an air source does not operate at the moment, (1) the adjusting knob c05 is continuously rotated or a related key of a wireless instruction emitter (a remote controller) is pressed to start the air source to operate, the micro air source outputs high-pressure air flow, the high-pressure air flow is sent to the air flow input pipe a10 through the air flow guide pipe, enters a rear groove a08, then enters a front groove a07 through a channel between the front groove and the rear groove, and is sprayed onto the goggles along an air guide pipe mounting port a09, an upper air guide pipe a03, a lower air. The air flow sprayed onto the goggles lens can be adjusted through the two operation modes, the air passage type air flow adjusting knob c04 can also be rotated, the sprayed air flow can be adjusted more accurately, after the anti-fog and defogging tasks are completed, the adjusting knob c05 is reset, and the air source machine stops working; (2) if the manual or remote control operation mode is not used, the automatic control mode of the utility model can be used, if the user feels the effect is not good, the case can be rotated to the front of the abdomen, the operation parameters can be reset through the setting button c03, and the air flow of the jet can be adjusted through rotating the air path type air flow adjusting knob c04 until the user feels comfortable.

The utility model discloses a gas flow that miniature air supply exported can fully ensure the needs of the antifog function of defogging. The defogging protection task can be completed without using the maximum output gas of the gas source. Through the two air volume adjusting modes, each user can find the air flow suitable for the user.

The above-mentioned embodiment is only the partial embodiment of the present invention, it is not right the present invention constitutes any restriction, all according to the present invention discloses any simple modification, change and equivalent structure change made by the technical entity to the above embodiments all belong to the protection scope of the present invention.

Claims

1. An anti-fog, defogging goggle, formed by the modification of a finished goggle, the increased parts of the modification comprising: the device comprises an airflow distributor, a nozzle bracket, an airflow conduit, a micro air source and a case;

the air flow distributor (a 12) and the nozzle bracket (a 13) are positioned on the goggles upper cover (a 01) and are used for distributing the air delivered by the miniature air source to the two lenses on average;

the air flow distributor (a 12) is long-strip-shaped in appearance, two groove-shaped spaces which are parallel front and back, namely a front groove (a 07) and a rear groove (a 08), are arranged inside the air flow distributor (a 12), the front groove (a 07) and the rear groove (a 08) are communicated at the middle position, air can freely enter and exit the two spaces, two air guide pipe installing openings (a 09) with rectangular or elliptical cross sections are formed at two ends of the bottom of the front groove (a 07), one end of the rear groove (a 08) extends to form a bent round pipe which is an air flow input pipe (a 10) and is used for being connected with an air flow guide pipe; the bottom of the air flow distributor (a 12) is extended to the periphery to form an irregular sheet shape;

the nozzle bracket (a 13) is also long-strip in appearance, the upper end of the nozzle bracket is provided with two upper air ducts (a 03) with rectangular or oval cross sections, the upper air ducts can be tightly matched and connected with an air duct mounting port (a 09) of the air flow distributor (a 12) to transfer the air flow from the air flow distributor (a 12) to the nozzle (a 05), and the height of the upper air duct (a 03) is 1-2 mm more than the thickness of the plastic layer of the upper cover (a 01) of the goggles; the lower end of the nozzle bracket (a 13) is provided with a lower air duct (a 04) and a nozzle (a 05), the lower air duct (a 04) is the continuation of the upper air duct (a 03), the distance between the left air duct and the right air duct is the range of the interpupillary distance of a person, the nozzle (a 05) is the bending extension of the lower air duct (a 04) towards the surface of the goggles, the middle space is in a wide slit shape and is a nozzle (a 06), the area of the nozzle (a 06) is smaller than the sectional area of the inner cavity of the air duct, the air flow collection is facilitated, and the impact force; the surface formed by the upper edge and the lower edge of the spout (a 06) forms an acute angle with the goggle lens;

the power supply, the differential pressure sensor and the alarm horn of the micro air source are prefabricated on a comprehensive functional circuit board; the miniature air source, the comprehensive function circuit board and the pressure release valve are packaged in a case, and the bottom of the case is provided with heat dissipation holes which are used as an emergent pressure release air exhaust channel besides heat dissipation; the pressure relief valve and the measuring end of the differential pressure sensor are connected to the air outlet end of the miniature air source through an air exhaust to perform safety protection and airflow regulation functions; the left side of the case is provided with a battery jar with a protective door; the right side surface of the case is provided with a power switch, and the inside of the case is connected with the comprehensive function circuit board; the air outlet pipe (c 01) of the case, a power indicator light and a work indicator light are arranged on the case in advance; the air outlet pipe (c 01) of the case is connected with the air outlet end of the micro air source in the case through a main flow path of the air exhaust;

the pipe diameter of the airflow guide pipe is matched with the air outlet pipe (c 01) of the case.

2. An anti-fog and defogging goggles as claimed in claim 1 wherein said integrated function circuit board is further preformed with a circuit type airflow adjusting module, and a circuit type airflow adjusting knob (c 05) is mounted on the right side surface of the case, said circuit type airflow adjusting knob (c 05) being connected to the integrated function circuit board inside the case.

3. An anti-fog and defogging goggles as claimed in claim 1, wherein an air path type air flow regulating valve is further arranged in the case, and the pressure release valve, the air path type air flow regulating valve and the measuring end of the pressure difference sensor are connected to the air outlet end of the micro air source through an air exhaust with 3 branches to perform the functions of safety protection and air flow regulation; the right side surface of the case is provided with an air path type air flow adjusting knob (c 04), the inside of the case is connected with the air path type air flow adjusting valve, and an air outlet pipe (c 01) of the case is connected with an air outlet end of a micro air source through a main flow path of an air exhaust with 3 branches.

4. An anti-fog, defogging and safety goggles as claimed in claim 1, wherein said integrated function circuit board is also pre-fabricated with a wireless receiving control module and an electronic cycle timing control module; an electronic cycle timing controller display screen (c 02), an electronic cycle timing controller setting button (c 03) and a corresponding indicator light are arranged on the case; the electronic cycle timing controller display screen (c 02) and the electronic cycle timing controller setting button (c 03) are connected with the comprehensive function circuit board in the main case, a user sets the air source running time and the running interval time through the electronic cycle timing controller setting button (c 03), and the set parameters are displayed on the electronic cycle timing controller display screen (c 02); after the setting is finished, the antifogging and demisting tasks of the goggles are automatically executed.

5. An anti-fog, defogging goggle according to claim 1 wherein said micro air source is a micro air pump or a micro turbo fan; and the bottom of the case is provided with an air inlet filter which is connected with a micro air source air inlet in the case.

6. An anti-fog, defogging goggle according to claim 1 wherein one side of said chassis is recessed to conform to the shape of the waist of a human body, the recessed side having a hook for passing through the belt; the battery is a lithium battery.

7. An anti-fog, anti-fog and anti-fog goggles as claimed in claim 1, wherein the upper and lower edges of said spout (a 06) form a face that is at an acute angle of less than 45 degrees to the goggle lens.

8. An anti-fog, defogging goggle according to claim 1 wherein the combination of said down airway tube (a 04) and nozzle (a 05) are of two types: short-nozzle plates and long-nozzle plates; the upper edge of the inclined plane of the nozzle (a 05) of the short nozzle plate is horizontally aligned with the lower edge of the mirror frame (a 02), the rest part of the inclined plane of the nozzle (a 05) is below the lower edge of the mirror frame (a 02), and the sprayed air flow can reach the upper 1/3 part of the mirror surface; the appearance and the function of long mouth version are the same with short mouth version, and the difference is that down air duct (a 04) is longer, on the upper and lower distance, prolongs 4~10mm downwards than short mouth version.

9. An anti-fog, defogging goggle according to claim 1 wherein the bottom of said air flow distributor (a 12) extends circumferentially in an irregular sheet-like manner; small round holes are preset at two ends and the near-forehead part and are used for connecting and fixing holes (a 11), the sheet-shaped middle layer of the nozzle support (a 13) is in a shape suitable for the bottom of the air flow distributor (a 12), and the small round holes are arranged at the same positions as the connecting and fixing holes (a 11) at the bottom of the air flow distributor (a 12).

10. An anti-fog, defogging goggle according to claim 1 wherein the mounting template tool of the retrofit goggle is comprised of a mounting template and two types of cutting heads; the mounting template is a long strip-shaped metal plate, two upper air guide pipe cutter head holes (a 14) matched with the positions and the shapes of upper air guide pipes (a 03) of the nozzle support (a 13) are formed in the mounting template, a plurality of connecting and fixing cutter head holes (a 15) with the same diameters, positions and numbers as those of connecting and fixing holes (a 11) in the nozzle support (a 13) are formed in the mounting template, the cutter heads are made of metal, are hollow and are matched with the upper air guide pipe cutter head holes (a 14) and the connecting and fixing cutter head holes (a 15) in shape, and when the mounting template is used, the corresponding cutter heads pass through the corresponding cutter head holes in a clamping or hammering mode, and the flexible goggles are covered with accurate holes.