WO2015149591A1

WO2015149591A1 - Active air feeding mask

Info

Publication number: WO2015149591A1
Application number: PCT/CN2015/072710
Authority: WO
Inventors: 朱其厚
Original assignee: 朱其厚
Priority date: 2014-04-01
Filing date: 2015-02-11
Publication date: 2015-10-08
Also published as: CN103919304A; CN103919304B

Abstract

An active air supply mask comprises a mask body (1), the lower portion of the mask body (1) is provided with an air feeding cavity (2), and a respiratory mask (3) matched with the mouth and the nose is formed at the upper portion of the mask body (1). A direct-current fan (4) for feeding air is arranged in the air feeding cavity (2), air inlets (21) are arranged in the inner side surface of the air feeding cavity (2), and a filter material layer (5) is arranged in the air feeding cavity (2) along the air inlets (21). An air conveying channel (22) is arranged between the air feeding cavity (2) and the respiratory mask (3). The active air feeding mask enables the respiration to be smooth and has a good protection effect. Also provided are a rotating wheel and a manufacturing method therefor. The method can prevent the generation of deformation between lateral plates (41) and fan blades (42) during the combined processing of the rotating wheel, the deformation influencing the concentricity, and the flatness of two lateral plates (41) and the consistence of the fan blades (42) are ensured.

Description

Active air hood

Technical field

The invention relates to a mask, in particular to an active air supply hood.

Background technique

With the development of urban construction, pollution in the air, wind and haze, and the prevalence of infectious diseases can cause serious harm to human health. The conventional mask is composed of an integral cover body, and the outer side surface of the cover body is a filter surface, and a filter layer is arranged along the filter surface, and the outside air is sucked through the filter layer through the nasal respiratory force, but the breathing is caused by the resistance of the filter layer and the like. Not smooth. At the same time, when a certain filtering effect is required, the resistance of the filter layer is also proportionally increased, causing external air to enter from the joint between the cover and the face, thereby affecting the filtering effect.

The conventional DC motor comprises a coaxial DC motor provided by a wheel type wind wheel and a wheel type wind wheel shaft, and the wheel type wind wheel comprises a circular side plate and a plurality of wind pages arranged equidistantly between the side plates, and the DC motor The rotor housing is fixed in one piece with the wheeled wind wheel. The two side plates are symmetrically arranged with through holes for fixing the two ends of the wind page, and the two ends of the wind page are inserted through the through hole and then the outer end portion is provided, and the outer end surface of the side plate is folded by 90 degrees of the outer end portion of the wind page. Closely fixed, because the axial eccentric force is generated when the outer end of the wind sheet is folded 90 degrees, the deformation and eccentricity between the wind page itself, the two side plates, and the connection between the wind page and the two side plates are At the same time, the overall rotation of the wind wheel will be reversed, so that the concentricity and the quality requirements cannot be guaranteed.

Therefore, how to solve the above problems has become an urgent problem to be solved.

technical problem

The technical problem to be solved by the present invention is to provide an active air supply hood that has a smooth breathing and a good protective effect. At the same time, it provides a rotating wheel and a processing method for preventing deformation between the side plate and the wind sheet when the rotary wheel combination is processed, and the concentricity of the wind wheel and the flatness of the two side plates and the consistency of the wind page are realized. effect.

In order to solve the above technical problem, an active air supply hood of the present invention includes a cover body, a lower portion of the cover body is provided with a ventilation chamber, and an upper portion is formed with a respiratory cover adapted to the nose and mouth, and the air supply chamber is provided The air blower of the direct current fan is provided with an air inlet on the side of the air supply chamber, a filter layer is arranged in the air supply chamber of the air inlet, and a gas passage is arranged between the air supply chamber and the breathing cover.

According to the above technical solution, the air supply chamber is provided in the lower part, and the inlet port is arranged on the inner side of the air supply chamber, and a buffer space is formed on the inner side of the air supply chamber to alleviate the air to be entered, so as to prevent the air from entering straight into the air. mouth. The DC fan in the air supply chamber provides suction to filter the air from the air inlet and then filter through the filter layer. The filtered air is sent into the breathing hood by the gas transmission channel. The wind pressure provided by the DC fan is greater than the breathing volume and the external atmospheric pressure. The sum is such that there is no outside air entering the side of the respiratory mask along the contact edge during inhalation. At the same time, it is ensured that the exhaust gas exhaled during exhalation is discharged from the respiratory mask side along the contact gap.

Technical solution

In the above-mentioned active air supply hood, the cover body comprises an outer cover and an inner cover. The inner cover is disposed in the outer cover to form a ventilation chamber, and the gas passages are symmetrically disposed on both sides, and the gas transmission passage extends to be opposite to the nasal side of the nostril. The outer wall surface of the inner cover and the inner wall surface of the outer cover form a ventilation chamber and a gas transmission passage extending from the left and right sides to a position opposite to the nasal side of the nostril, so that the filtered and purified air is transported into the respiratory mask by the gas transmission channel and is higher than the nostril. The side of the nose is opposite, and the exhaust gas exhaled during exhalation does not cause mixing to ensure the inhalation of fresh gas.

In the above-mentioned active air supply cover, the lower part of the inner cover forms a cover portion extending downwardly and adapted to the mouth portion, the cover portion is provided with a lower edge positioned to be positioned with the chin, and the lower portion of the lower edge is provided with a cavity for accommodating the battery. The inner wall surface of the inner cover forms a cover portion corresponding to the mouth portion, and the lower edge of the cover portion is positioned to buckle the chin phase for comfortable positioning. The built-in battery compartment has a movable cover at the bottom to meet the technical effect of easy disassembly.

In the above-mentioned active air supply hood, the air pressure input into the breathing hood is greater than the sum of the external air pressure and the suction amount. In order to ensure that there is no outside air entering the side of the respiratory mask along the contact edge during inhalation. At the same time, it is ensured that the exhaust gas exhaled during exhalation is discharged from the respiratory mask side along the contact gap.

In the above-mentioned active air supply hood, the direct current fan is a rotary fan type, and comprises two rotating wheel side plates, a plurality of wind pages arranged on the circumference of the ring between the two side plates, and a DC motor of the rotating shaft axis. The rotary air-winding shaft has a built-in coaxial DC motor to reduce the overall volume of the fan, while the rotary wind page ensures uniform air pressure.

In the above-mentioned active air supply hood, a gas transmission passage is formed between the outer cover and the inner cover, and an upper end portion of the gas transmission passage is formed in a horizontal direction. The filtered and purified air is transported from the gas transmission channel into the respiratory hood and is input at a level higher than the nasal side of the nostril, and the input direction is consistent with the suction direction of the nostril, so that the exhaust gas exhaled during exhalation does not cause mixing, so as to ensure Inhale fresh air.

In the above-mentioned active air supply cover, the inner side of the air supply chamber is provided with a cover plate of the movable buckle, and the air inlet is uniformly disposed along the cover plate. The cover plate of the movable buckle facilitates the disassembly and assembly of the filter layer and the DC fan for technical effects of replacement and cleaning.

In the above-mentioned active air supply hood, the filter layer is made of filter cotton or activated carbon or filter paper or a combination thereof. Products with different filtration grades are realized by using filter materials of different materials, and the products of different filtration grades ensure the air supply volume by the direct flow fan of the air supply.

The active air supply cover is provided with a radially inward opening positioning groove along the circumference of the side plate, and the inner side of the two ends of the wind page is provided with an axially limiting bayonet, and both ends of the wind page The parts are respectively positioned in the opening positioning groove, and the inner side of the bayonet and the side plate of the rotating wheel are buckled, and the outer peripheral opening of the positioning groove of the pressing opening is used to reduce and deform the fixed wind page. By forming an opening positioning groove along the circumference of the side plate, the inner side of the two ends of the wind sheet is located at the inner end of the opening positioning groove, and the inner side of the opposite side of the bayonet of the runner is buckled for axial limitation, and the roller is passed through the roller. The two rolling grooves corresponding to the two side plates are set to roll the wind wheel which has been assembled and rotated to limit the rotation, so that the outer peripheral opening of the opening positioning groove is pressed to reduce the deformation and fix the wind page to prevent the wind page from being fixed. When the wind wheel is combined, the deformation between the side plate and the wind sheet is generated to affect the concentricity, and the technical effect of ensuring the concentricity of the wind wheel, the flatness of the two side plates, and the consistency of the wind pages is realized.

In the above-mentioned active air supply cover, the wind page and the opening positioning groove are curved. The connection stability between the wind sheet and the two side plates is ensured to adapt to the technical effect that the outer peripheral opening of the opening groove of the same direction is pressed to reduce the deformation and fix the wind sheet to ensure the consistency of the amount of deformation. At the same time, the technical effect of improving the wind pressure conveying capacity of the wind wheel is improved.

In the above-mentioned active air supply hood, the rotary wheel processing method comprises the following steps: (1) the stamping die respectively processes the runner side plate and the wind page, and forms a plurality of open positioning grooves around the circumference of the runner side plate, and the inner side of the wind page The two ends form a bayonet for limiting the position; (2) the two runners are oppositely positioned, and the windpage is respectively disposed in the opening positioning groove, and the tabs and the runner side of the inner side of the inner side of the windpage The opposite inner side of the board is buckled and assembled into a wind wheel blank; (3) after the wind wheel blank is placed in the rolling mold, the two rolling grooves provided on the roller correspond to the outer edges of the two side plates, and the rotating roller pair The outer edge of the side plate of the two rotating wheels of the wind wheel which has been assembled and rotated is rotated and rolled, so that the outer peripheral opening of the opening positioning groove is pressed to reduce the deformation and fix both ends of the wind page. In the above-mentioned DC motor rotor processing method, the step (3) rotational rolling is to rotate the rolling along the arc rotation direction of the opening positioning groove. The above-mentioned rotary wheel processing method is characterized in that the inner side of the two ends of the wind sheet is positioned at the inner end of the open positioning groove at the inner end of the open end of the groove, and the inner side of the opposite side of the side plate of the wind wheel is axially engaged. In the limit position, two rolling grooves corresponding to the two side plates are arranged by the roller to roll the wind wheel which has been assembled and rotated to limit the rotation, so that the outer peripheral opening of the opening positioning groove is pressed to be reduced and deformed. The windpage is fixed to prevent the deformation between the side panel and the windpage when the wind turbine is combined, which affects the concentricity, and realizes the technical effect of ensuring the concentricity of the wind turbine, the flatness of the two side panels, and the consistency of the wind pages.

Beneficial effect

Compared with the prior art, the active air supply hood of the invention has the advantages of smooth breathing, good protection effect, and simple structure and reasonable design. At the same time, the rotary wheel processing method can prevent the occurrence of deformation between the side plates and the wind sheet during the combination processing of the wind wheel, thereby affecting the concentricity, and realizing the technology of ensuring the concentricity of the wind wheel, the flatness of the two side plates, and the consistency of the wind pages. effect.

DRAWINGS

The invention will be further described in detail below with reference to the embodiments illustrated in the accompanying drawings, but without limitation.

1 is a schematic front view of a specific embodiment of the present invention;

Figure 2 is a schematic cross-sectional view of the A-A of Figure 1;

Figure 3 is a perspective view showing the inner side of the embodiment of the present invention;

4 is a schematic top plan view of a specific embodiment of the present invention;

Figure 5 is a bottom plan view showing a specific embodiment of the present invention;

6 is a schematic view of a three-dimensional disassembly and assembly structure according to an embodiment of the present invention;

7 is a schematic structural view of a direct current fan according to a specific embodiment of the present invention;

Figure 8 is a schematic cross-sectional view of the B-B of Figure 7;

Figure 9 is a top plan view of Figure 7;

10 is a schematic perspective view of a DC fan according to a specific embodiment of the present invention;

Figure 11 is a perspective view showing the three-dimensional assembly structure of the wind turbine of the DC fan of the present invention;

12 is a schematic structural view of one of the runner side plates of the direct current fan;

Figure 13 is a top plan view of Figure 12;

Figure 14 is a schematic structural view of another runner side plate of the direct current fan;

Figure 15 is a top plan view of Figure 14;

Figure 16 is a schematic structural view of a wind page of a direct current fan;

Figure 17 is a top plan view of Figure 16.

In the figure: cover 1, outer cover 11, inner cover 12, cover portion 13, lower edge 14, air supply chamber 2, air inlet 21, air passage 22, cover 23, respirator 3, DC fan 4, The runner side plate 41, the opening positioning groove 41a, the wind sheet 42, the bayonet 42a, the motor movement 43, the power switch 44, the filter layer 5, and the cavity 6.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIG. 1 to FIG. 6 , an active air vent cover of the present invention includes a cover body 1 , a lower portion of the cover body 1 is provided with a ventilation chamber 2 , and an upper portion is formed with a respiratory cover 3 adapted to the nose and mouth. The air supply chamber 2 is provided with a direct current fan 4 for supplying air, and an air inlet 21 is arranged on the side of the air supply chamber 2, and a filter layer 5, a supply air chamber 2 and a breathing are arranged in the air supply chamber 2 of the air inlet 21 A gas passage 22 is provided between the covers 3.

The cover body 1 includes a cover 11 and an inner cover 12, and the inner cover 12 is disposed in the outer cover 11 to form a ventilation chamber 2, and the gas passages 22 are symmetrically disposed on both sides, and the gas delivery passages 22 extend to be opposite to the nasal side of the nostrils.

The lower portion of the inner cover 12 is formed with a cover portion 13 extending downwardly and adapted to the mouth portion. The cover portion 13 is provided with a lower edge 14 positioned opposite the chin, and a lower portion of the lower edge 14 is provided with a cavity 6 for accommodating the battery.

The air supply chamber 2 is input into the respiratory hood 3 to form a wind pressure greater than the sum of the external air pressure and the suction amount.

The gas passage 22 is formed between the outer casing 11 and the inner casing 12, and the upper end portion of the gas passage 22 is formed in a horizontal direction.

The inner side surface of the air supply chamber 2 is provided with a cover plate 23 of a movable buckle, and the air inlet ports 21 are uniformly disposed along the cover plate 23.

The filter layer 5 is made of filter cotton or activated carbon or filter paper or a combination thereof.

Embodiments of the invention

As shown in FIG. 7 to FIG. 17, the direct current fan 4 is a rotary fan, and includes a plurality of wind pages 42 and a rotating shaft axis which are arranged equidistantly between the two sides of the symmetrical wheel side plate 41 and the runner side plate 41a. Motor movement 43. The power switch 44 of the DC motor 4 is disposed on the side of the air supply chamber 2.

A radially inward opening positioning groove 41a is provided along the circumference of the side plate 41, and the inner side of the both ends of the wind sheet 42 is provided with a bayonet 42a for axially limiting, and the two ends of the wind sheet 42 are respectively positioned. In the opening positioning groove 41a, the bayonet 42a is engaged with the inner side surface of the runner side plate 41a, and the outer peripheral opening of the opening opening groove 41a is pressed to fix and fix the wind sheet 42.

The wind sheet 42 and the opening positioning groove 41a are curved.

Industrial applicability

The processing method of the runner includes the following steps: (1) the stamping die respectively processes the runner side plate and the wind page, and a plurality of opening positioning grooves are formed around the circumference of the runner side plate, and both ends of the inner side of the wind page are formed into an axial direction. (2) The two sides of the two rotating wheel side plates are respectively disposed in the opening positioning groove after the two side plates are relatively positioned, and the inner side of the inner side of the winding page is opposite to the inner side of the rotating side plate , assembled into a wind wheel blank; (3) After the wind wheel blank is placed in the rolling mold, the two rolling grooves provided on the roller correspond to the outer edges of the two side plates, and the rotating roller pair has been assembled and rotated to the limit. The outer edges of the side plates of the two rotating wheels of the wind wheel are rotated and rolled, so that the outer peripheral opening of the opening positioning groove is pressed to reduce deformation and fix both ends of the wind page. In the above-mentioned DC motor rotor processing method, the step (3) rotational rolling is to rotate the rolling along the arc rotation direction of the opening positioning groove.

In the specific use of the present invention, the elastic bands are respectively disposed in the positioning holes 15 of the two sides of the cover body 1, and the respiratory cover 3 of the cover body 1 is placed in the opposite position of the nose and nose by the elastic band, and the DC motor of the power switch 44 is turned on. 4. The DC fan 43 in the air supply chamber provides suction to filter the air from the air inlet 21 and then filter through the filter layer 5. The air on both sides of the filter is purified and transported into the respiratory cover 3 by the gas passage 22, the DC fan. The wind pressure provided by 43 is greater than the sum of the breathing volume and the external atmospheric pressure, so that the inhalation side ensures that there is no outside air entering the side of the respiratory mask along the contact edge. At the same time, it is ensured that the exhaust gas exhaled during exhalation is discharged from the sides of the respiratory mask 3 along the contact gap.

In summary, the present invention has been prepared as an actual sample and has been tested for many times as described in the specification and the illustrated contents. From the effect of using the test, the present invention can prove that the present invention can achieve its intended purpose, and the practical value is unnecessary. Doubt. The above examples are merely illustrative of the invention. The above is not intended to limit the invention in any way, and any one of ordinary skill in the art can make a partial change or modification using the technical content disclosed in the present invention without departing from the technical features of the present invention. The equivalent embodiments, without departing from the technical features of the present invention, are still within the scope of the technical features of the present invention.

Sequence table free content

Claims

1, An active air hood, comprising a cover body (1), characterized in that: a lower part of the cover body (1) is provided with a ventilation chamber (2), and an upper part forms a respiratory cover (3) adapted to the nose and mouth, A ventilation fan (4) is provided in the air supply chamber (2), and an air inlet (21) is arranged on the side of the air supply chamber (2), and is disposed in the air supply chamber (2) of the air inlet (21). There is a filter layer (5), and a gas passage (22) is provided between the air supply chamber (2) and the breathing mask (3).

2. The active air hood according to claim 1, wherein the cover (1) comprises a cover (11) and an inner cover (12), and the inner cover (12) is disposed in the cover (11) to form a delivery The air chamber (2) has a gas channel (22) symmetrically disposed on both sides, and the gas channel (22) extends to a position opposite to the nasal side of the nostril.

The active air hood according to claim 2, wherein the lower portion of the inner cover (12) forms a cover portion (13) extending downwardly and adapted to the mouth portion, and the cover portion (13) is provided with The lower edge (14) of the chin phase is positioned, and the lower cavity (14) is provided with a cavity (6) for accommodating the battery.

The active air hood according to claim 1, characterized in that the air supply chamber (2) is input into the breathing hood (3) to form a wind pressure greater than the sum of the external air pressure and the suction amount.

The active air hood according to claim 1, wherein the direct current fan (4) is a rotary fan, including a rotating wheel, and the rotating wheel comprises two symmetrical rotating side plates (41) and rotating A plurality of wind pages (42) equidistantly disposed around the circumference of the wheel side plates (41a) and a motor movement (43) of the wheel axis.

The active air hood according to claim 3, wherein the gas passage (22) is formed between the outer cover (11) and the inner cover (12), and the upper end of the gas passage (22) is horizontally formed. Direction setting.

The active air hood according to claim 1 or 2, characterized in that: the inner side of the air supply chamber (2) is provided with a cover plate (23) of the movable buckle, and the air inlet (21) is along the cover plate. (23) Uniform setting.

The active air vent cover according to claim 5, characterized in that: a radially inward opening positioning groove (41a) is provided along the circumference of the side plate (41), and both ends of the wind page (42) are provided. The inner side edge is provided with a bayonet (42a) for axial limitation, and both ends of the wind page (42) are respectively positioned in the opening positioning groove (41a), the bayonet (42a) and the runner side plate (41a) The opposite inner side is fastened by fixing the outer peripheral opening of the opening positioning groove (41a) to reduce and deform the fixed wind page (42).

9. The active air hood of claim 8, wherein the wind page (42) and the opening locating groove (41a) are curved.

The active air vent cover according to claim 5 or 8 or 9, wherein the rotary wheel processing method comprises the following steps: (1), the stamping die respectively processes the runner side plate and the wind page, on the runner side A plurality of opening positioning grooves are formed around the circumference of the plate, and the two ends of the inner side of the wind sheet form a bayonet for limiting the position; (2) the two side plates are relatively positioned, and the wind page is respectively disposed in the opening positioning groove. The inner side of the inner side of the inner side of the wind page is buckled with the inner side of the side plate of the runner, and assembled into a wind wheel blank; (3) the wind wheel blank is placed in the rolling mold, and the wheel is set The two rolling grooves correspond to the outer edges of the two side plates, and the rotating rollers rotate and roll the outer edges of the side plates of the two rotating wheels of the wind wheel that have been assembled and rotated, so that the outer peripheral opening of the opening positioning groove is pressed. It is used to reduce the deformation and fix both ends of the wind page. In the above-mentioned DC motor rotor processing method, the step (3) and the rotational rolling are rotated and rolled in the arc rotation direction of the opening positioning groove.