TWI773622B - Rotatably adjustable face mark valve - Google Patents

Abstract

The present invention relates to a rotatably adjustable face mask valve, which includes a valve seat, a flap and a valve cover. The valve cover includes a fixed member and a movable member. The movable member is movable relative to the fixed member to change a height position thereof, and includes a pressing portion. When a user holds and rotates the movable member, the pressing portion can be moved between a closed position, in which the pressing portion is pressed against the flap, and an open position, in which the pressing portion is separated from the flap. When the pressing portion is moved to the closed position, an opening on the valve seat is constantly kept in a shielded state. When the pressing portion is moved to the open position, the opening is brought by the user’s breath stream to change between the shielded state and a circulating state. Thus, the user may adjust the usage state of the face mask valve according to personal need and change the way the breath stream gets in and leaves the face mask.

Description

Rotary mask air valve

The present invention relates to a mask air valve that adopts a rotating method to switch the use state, in particular to a mask air valve that is pressed against or away from the valve sheet through the rotation of the air valve cover.

The nature is full of various bacteria, viruses and various harmful substances in the air. In particular, viruses can be transmitted through droplets and air, and can be inhaled by the human body to cause infection. Therefore, masks are used to block impurities and germs in the air.

However, in order to effectively block the invasion of germs, general masks use several layers of fabric to filter harmful germs, which also causes some users who need to wear them for a long time and need to work in a high temperature environment to be hot and humid, which not only makes users feel uncomfortable , will also reduce the protective ability of the mask due to moisture.

Therefore, masks with breathing valves are derived on the market. Although they can solve problems such as stuffy heat and humidity, because the breathing valve uses the principle of air circulation, some dirty air and harmful substances may pass through the breathing valve when not in use. The opening enters and is adsorbed on the filter sheet, and when the user wears it next time, it may be inhaled into the body, causing harm to the body.

According to the previous case, it can be found that the breathing valve that can usually be used to adjust the air volume has a relatively complex structure and high manufacturing cost. Therefore, this type of equipment is often used in professional fields such as medical treatment and disaster relief. relatively few applications.

The main purpose of the present invention is to provide a mask air valve that can be held and rotated by the user, so that the user can adjust the air flow rate through the air valve according to the needs, or the air valve is in a closed state that cannot be exhausted, In order to change the way the breathing mask is exhausted.

The secondary purpose of the present invention is that the valve seat and the valve cover of the mask valve can be quickly aligned and assembled in any orientation or multiple specific orientations, so as to improve the manufacturing efficiency of the mask valve.

Another object of the present invention is that the air valve cover is composed of a fixed part that restricts the movement area and a movable part that can rotate relative to the fixed part to change the height, so that the use state of the mask air valve can be matched with the height position change of the movable part, At the same time, the movable part and the fixed part can jointly construct a decorative surface, so as to increase the appearance beauty of the air valve of the mask.

Another object of the present invention is to be able to perform phase displacement adjustment between the movable part and the fixed part, so that the user can adjust the air flow rate of the mask air valve exhaust by himself.

In order to achieve the above objects, the rotary mask air valve of the present invention comprises: an air valve seat, an opening is formed along a central axis, and a first assembly part and a second assembly part are arranged in the opening; a valve plate , installed on the second assembly part to cover the opening, and the valve plate can be deformed by an air flow, so that the opening can be changed from a shielded state to a flow state; and an air valve cover, which has a fixing piece and a A movable piece that moves relative to the fixed piece, a fixed end of the fixed piece passes through the movable piece, and the fixed end is connected to the first assembling portion, so that a pressing portion of the movable piece is located at a contact portion of the valve. In the closed position of the plate, at least one projection and at least one guide groove are constructed between the fixed part and the movable part, so that the movable part can rotate along the central axis, so that the pressing part can separate the valve plate to an open position.

Wherein, when the pressing part is moved to the closed position, the opening will be permanently kept in the shielded state, and when the pressing part is moved to the open position, the opening will be affected by the airflow and can Switch between the shielding state and the circulating state.

The first assembling portion is constructed with a ring wall and a plurality of stoppers, the ring wall is provided with a neck forming a ring recess and a top contacting the outer periphery of the valve plate, and the stoppers are distributed on the neck and the valve plate. between a chassis of the valve seat; the second assembly part has a bracket connected to the ring wall and a column extending from the bracket.

In addition, the fixing member has a ring portion and a plurality of penetration portions extending downward from the ring portion, a clamping block is arranged at the bottom of the penetration portion to fit the recess of the ring, and the guide groove is formed in a portion of the penetration portion. The outer surface; the stoppers will equally divide the ring wall into a plurality of fixed areas, and the through parts are arranged at intervals in the ring part, and the size of the through parts is equal to the size of the fixed area, so that each through part is Being able to penetrate into one of the fixing areas allows the fixing member to connect to the gas valve seat in a plurality of selected orientations.

In addition, the movable member has an outer ring portion surrounding the outer side of the pressing portion, so that a penetration space is formed between the outer ring portion and the pressing portion, and the outer ring portion and the pressing portion are formed between the outer ring portion and the pressing portion. There are a plurality of pin portions in between, so that the piercing space is equally divided into a plurality of piercing regions, and the bumps are scattered and arranged on the outer ring portion, so that the bumps overlap inside the piercing region.

Furthermore, when the through portions of the fixed piece penetrate into the through regions of the movable piece, the protruding block will be pushed against the through portion and deflect outward until the protruding block is adjacent to the guide groove. , the bump will flex inwards again into the guide groove; the guide groove is provided with a vertical section, an inclined section and at least one concave section arranged below the inclined section, so that the pressing part can be positioned in the opening position, the closed position, or an adjusted position between the open position and the closed position.

In another embodiment, the first assembly portion is configured as a ring wall, the annular wall is provided with a neck formed with a ring recess and a top formed with a plurality of sockets, and the second assembly portion has a connection connected to the ring. A bracket of the ring wall and a socket formed in the bracket; the valve plate has a blocking piece and a plug extending from the blocking piece, the plug is inserted into the socket so that an outer periphery of the blocking piece can contact the top.

Wherein, the fixing member includes a cover portion and a plurality of through portions extending downward from the cover portion, the guide groove is formed on an outer side surface of the through portion, and an inner side surface of the through portion is provided with a matching ring The recessed clamping block and a protruding rib matched with the slot enable the fixing member to be connected to the gas valve seat in any orientation.

The feature of the invention is that the air valve cover has a movable part and a fixed part, and there is a convex block and a guide groove between them. When in use, the movable part is rotated along the central axis to the open position, so that the opening is in a circulating state. When the movable part rotates to the closed position, the opening will be completely covered, so that the breathing valve can close the opening when not in use, preventing air from entering and allowing some harmful substances to be adsorbed on the valve plate.

When the mask air valve is assembling and disassembling, the air valve seat has a concave neck and a plurality of blocks, so that the air valve cover can be installed in any direction; and in another embodiment, the plurality of gears are set. The block is changed to a plurality of grooves arranged in a ring on the ring, and the air valve cover is provided with a rib that matches the grooves. This state allows the air valve cover to be installed not only in any direction, but also by lifting. speed and more convenient to use.

1: mask air valve

2: Air valve seat

20: Ring chassis

21: Opening

22: The first set of connections

221: Ring Wall

222: Stop

223: neck

224: top

225: Ring depression

226: Fixed area

227: Slot

23: The second set of connections

231: Bracket

232: Cylinder

233: round hole

3: valve plate

31: Perforation

32: Blocking sheet

33: latch

4: Air valve cover

40: Fixing parts

401: Ring Department

402: Penetration

403: Card block

404: Guide groove

405: Vertical segment

406: Inclined segment

407: Recessed segment

408: Cover

409: Ribs

41: Movable parts

411: Press the part

412: Outer ring

413: pin

414: Piercing area

415: Hole

416: bump

42: Covers

421: Tube Department

422: Hood

423: jack

5: breathing mask

A: Center axis

F: Exhale airflow

S1: Interval space

S2: Wearing space

P1: open position

P2: closed position

Fig. 1 is a perspective view of a mask air valve combined with a mask of the present invention: Fig. 2 is an exploded view of the mask air valve; Fig. 3 is a cross-sectional view of the mask air valve; Figs. ; 5A to 5E are schematic diagrams illustrating the assembly of the valve cover, the valve sheet and the valve seat to form a mask valve; FIG. 6A is a schematic diagram of the mask valve in an open position; FIG. 6B is the mask valve between a shielded state and a flow state Figure 7A is a sectional view of the use of the mask air valve in a closed position; Figure 7B is a schematic diagram of the mask air valve being kept in a shielded state; 9 is an exploded view of another embodiment of the mask valve of the present invention; and FIG. 10 is a cross-sectional view of FIG. 9 .

For the convenience of further understanding and understanding of the structure, use and characteristics of the present invention, a preferred embodiment is given, and the detailed description is as follows: Please refer to Figure 1, the present invention rotates The type of mask air valve 1 is mainly installed on a breathing mask 5, so that when the user inhales while wearing the breathing mask 5, the external air is only inhaled through the small pores of the breathing mask 5, and cannot be used by the mask air valve. 1 Intake; when the user exhales, a small part of the air is exhausted from the breathing mask 5, and most of the rest of the air will be exhausted from the mask air valve 1. As shown in the figure, the breathing mask 5 is provided with a single mask air valve 1 located at a side position, however, this is only for the convenience of illustration, and does not limit the position and quantity of the mask air valve 1.

Please refer to the first embodiment shown in FIG. 2 , the mask air valve 1 of the present invention is provided with a valve plate 3 on an air valve seat 2, and then an air valve cover 4 is assembled on the air valve seat 2, so that the valve plate 3 is on the air valve seat 2 and the air valve cover 4.

The valve seat 2 has an annular base plate 20 . The annular base plate 20 is provided with an opening 21 along a central axis A, and the annular base plate 20 is provided with a first assembly portion 22 along the periphery of the opening 21 . in this A second assembling portion 23 covering a partial area of the opening 21 is disposed on the inner side of the first assembling portion 22; wherein, the first assembling portion 22 has a ring wall 221 and a plurality of stoppers 222. As shown in the figure, the ring wall 221 There is a neck 223 forming a ring recess 225 and a top 224 which can be in contact with the outer periphery of the valve plate 3, and the stoppers 222 are dispersedly arranged between the neck 223 and the annular base plate 20, so that the ring The wall 221 is equally divided into six fixed areas 226 of the same size; and the second assembly portion 23 has a bracket 231 connected to the inner side of the ring wall 221, and the bracket 231 is formed by two rods crossed to form an X shape , and a cylinder 232 extends upward from the intersection of the two rods.

As shown in FIG. 3 , the center of the valve plate 3 of the present invention has a pair of through holes 31 corresponding to the cylinder 232 , and the size of the outer edge of the valve plate 3 is larger than the size of the ring wall, so that when the cylinder 232 is inserted into the through hole 31 , The valve plate 3 can completely cover the opening 21, so that the opening 21 presents a shielding state; in addition, the valve plate 3 is made of a flexible material, when the breathing mask 5 is used by a user to exhale , the outer edge of the valve plate 3 will be pushed by an exhalation airflow F and separated from the annular wall 221 to form a flow state (refer to FIG. 6B ).

Referring again to FIG. 2 , the valve cover 4 is provided with a fixing member 40 , a movable member 41 and a blocking member 42 . The fixing member 40 has a ring portion 401 and three penetration portions 402 located below the ring portion 401 . , a through hole is formed in the center of the ring portion 401 , and the through portions 402 are spaced apart from each other, so that a space S1 is formed between the two through portions 402 , wherein the width of the space S1 is greater than the width of the through portion 402 ; And the through portion 402 is provided with a block 403 at the bottom of the inner side to match the ring recess 225, and the top outer side of the through portion 402 is provided with a guide groove 404, the guide groove 404 is sequentially provided with a vertical section from top to bottom 405 and an inclined section 406.

The movable member 41 has a pressing portion 411 and an outer ring portion 412 located outside the pressing portion 411 , so that a penetration space S2 is formed between the outer ring portion 412 and the pressing portion 411 , and the pressing A plurality of pins 413 are arranged between the part 411 and the outer ring part 412, so that the perforating space S2 is equally divided into six perforation Area 414, wherein the pressing portion 411 is provided with a horizontal member with a hole 415 formed in the center, the outer ring portion 412 is provided with a curved member, and the pin 413 is connected to an outer periphery of the horizontal member along an oblique direction and an inner edge of the curved piece, so that the height of the horizontal piece is lower than the height of the curved piece; and the inner edge of the outer ring portion 412 is provided with three protrusions 416 extending into the penetration area 414 respectively.

Referring to FIG. 3 again, the shielding member 42 is provided with a pipe portion 421 that can be inserted into the hole 415 , and a cover portion 422 adjacent to the outer ring portion 412 is provided at the top of the pipe portion 421 . 421 has a pair of sockets 423 corresponding to the size of the cylinder 232, the cover portion 422 covers the fixing member 40 and the top of the passing space S2, and forms a continuous arc together with the curved member on the outer ring portion 412 The curved surface makes the overall shape of the air valve cover 4 achieve a better visual effect.

When assembling the mask air valve 1 of the present invention, it is necessary to assemble the fixing member 40 and the movable member 41 first, then place the valve plate 3 on the air valve seat 2, and then assemble the fixing member 40 on the air valve seat. 2. Finally, connect the shutter 42 to the gas valve seat 2 .

Please refer to FIG. 4A and FIG. 4B , in the process of assembling the fixing member 40 and the movable member 41 , first, the penetrating portions 402 are aligned with one of the penetrating regions 414 respectively, and then the fixing member 402 is When the member 40 moves downward through the through-hole region 414, the block 403 at the bottom of the penetration portion 402 will first contact the pressing portion 411 of the movable member 41, so that the penetration portion 402 becomes an expanded state outwardly.

Referring to FIG. 4C , since the bumps 416 are arranged scattered below the outer ring portion 412 , and the bumps 416 are disposed inside the through region 414 , the through portion 402 will be pushed into the through portion 402 again. The protruding block 416 , at this time, the protruding block 416 is bent outwardly into a deformed state due to being pushed, so that the fixing member 40 can continue to penetrate the movable member 41 downward.

Referring to FIG. 4D , in the process of the continuous downward movement of the through portion 402 , when the block 403 exceeds the height of the pressing portion 411 , the through portion 402 will deform inwardly and return to its original state. In addition, the bump 416 remains in the deformed state when contacting the through portion 402 until the through portion 402 descends to the point where the guide groove 404 contacts the bump 416 , and the bump 416 returns to the initial state inward.

Referring to FIG. 5A , in the process of assembling the valve seat 2 with the valve plate 3 , the through hole 31 of the valve plate 3 is aligned with the position of the cylinder 232 , so that the valve plate 3 is penetrated by the cylinder 232 . The first assembling portion 22 and the second assembling portion 23 can be contacted, so as to cover the opening 21 of the annular chassis 20 .

Please refer to FIG. 5B and FIG. 5C , in the process of assembling the valve seat 2 by the fixing member 40 , first, each through portion 402 is aligned with one of the fixing regions 226 of the annular wall 221 . Therefore, the fixing member There are 6 specific orientations between 40 and the valve seat 2 that can be assembled, and then the fixing member 40 is moved down to contact the first assembly portion 22, and the block 403 at the bottom of the penetration portion 402 will contact to the top 224 of the first assembling portion 22 , so that the through portion 402 is pushed outward to change to the expanded state.

Please refer to FIG. 5D , finally, when the block 403 of the penetration portion 402 enters the annular recess 225 of the neck portion 223 , the penetration portion 402 will be restored from the expanded state to the original state, whereby the fixing member 40 is The horizontal direction is restricted by the two blocks 222 , and the vertical direction of the fixing member 40 is restricted by the annular recess 225 .

Please refer to FIG. 5E , in the process of connecting the shutter 42 to the valve seat 2 , after the pipe portion 421 of the shutter 42 is aligned with the hole 415 in the center of the pressing portion 411 , the shutter 42 is 42 moves downward to enter the passing space S2 until the pipe portion 421 contacts the valve plate 3, the cover portion 422 of the shutter 42 will be adjacent to the outer ring portion 412, and the cover portion 422 of the shutter 42 will be adjacent to the outer ring portion 412. 422 and the outer ring portion 412 of the movable element 41 together form the continuous curved surface, so as to complete the assembly of the entire mask air valve 1 .

Referring to FIGS. 6A and 6B , when the mask air valve 1 rotates in a clockwise direction along the central axis A through the movable member 41 , the protrusions 416 of the movable member 41 are along the inclined section of the guide groove 404 . 406 produces an inclined upward movement, so that the pressing portion 411 moves away from the valve plate 3 to an open position P1.

When the user wears the breathing mask 5 to exhale, the exhalation airflow F will enter the opening 21. Since only the inner edge of the valve plate 3 is pressed by the pipe portion 421, the outer edge of the valve surface 3 will It will be pushed by the exhalation airflow F, so that the opening 21 is converted from the shielding state to the circulating state.

Referring to FIGS. 7A and 7B , when the mask air valve 1 rotates in a counterclockwise direction along the central axis A through the movable member 41 , the protrusions 416 of the movable member 41 are along the inclined section of the guide groove 404 . 406 produces an oblique downward movement, so that the pressing portion 411 contacts the valve plate 3 to a closed position P2.

When the user wears the breathing mask 5 to exhale, because the valve piece 3 is completely pressed by the tube portion 421 and the pressing portion 411, the exhalation airflow F will also enter the opening 21, but the valve piece cannot be allowed to enter the opening 21. 3 is separated from the valve seat 2, so that the opening 21 will remain permanently in the shielded state.

Referring to FIG. 8 , in order to allow the user to change the air flow rate of the mask air valve 1 by himself, the guide groove 404 may further include at least one concave section 407 disposed below the inclined section 406 to allow the The pressing portion 411 of the movable element 41 can be positioned not only at the open position P1 and the closed position P2, but also at an adjustment position (not shown) between them.

Please refer to the second embodiment of the mask air valve 1 of the present invention shown in FIG. 9 and FIG. 10 , the first assembly part 22 of the air valve seat 2 only has a ring wall 221 , and the second assembly part 23 is provided with It is a bracket 231 forming a circular hole 233. As shown in the figure, the ring wall 221 is provided with a neck 223 forming a ring depression 225, a top 224 that can contact the outer periphery of the valve plate 3, and a plurality of are formed on the top 224 of the slot 227; the valve plate 3 is provided with a blocking piece 32 and a plug 33 extending from the blocking piece 32. When the plug 33 of the valve piece 3 enters the circular hole 233 for positioning, the blocking piece 32 An outer periphery will be adjacent to the top 224 and the slots 227 .

In addition, the fixing member 40 is designed to include a cover portion 408 and a plurality of through portions 402 extending downward from the cover portion 408 , so that the air valve cover 4 is only composed of the fixing member 40 and the movable member 41 . As shown in the figure, the guide groove 404 is also formed on an outer side surface of the penetration portion 402, and an inner side surface of the penetration portion 402 is provided with a locking block 403 that fits with the ring recess 225 and a matching The protruding rib 409 of the slot 227 enables the fixing member 40 to be connected to the first assembly portion 22 of the valve seat 2 in any orientation.

1: mask air valve

2: Air valve seat

20: Ring chassis

21: Opening

22: The first set of connections

221: Ring Wall

222: Stop

223: neck

224: top

225: Ring depression

226: Fixed area

23: The second set of connections

231: Bracket

232: Cylinder

3: valve plate

31: Perforation

4: Air valve cover

40: Fixing parts

401: Ring Department

402: Penetration

403: Card block

404: Guide groove

405: Vertical segment

406: Inclined segment

41: Movable parts

411: Press the part

412: Outer ring

413: pin

414: Piercing area

415: Hole

416: bump

42: Covers

421: Tube Department

422: Hood

423: jack

A: Center axis

S1: Interval space

S2: Wearing space

Claims (9)

A rotary mask air valve, comprising: an air valve seat, forming an opening along a central axis, and a first assembly part and a second assembly part are arranged in the opening; a valve plate, mounted on the first assembly part; Two sets of connecting parts are used to cover the opening, and the valve plate can be deformed by an air flow, so that the opening can be changed from a shielding state to a flow state; and an air valve cover, which has a fixing member and a A movable movable part, a fixed end of the fixed part passes through the movable part, and the fixed end is connected to the first assembly part, so that a pressing part of the movable part is located in a closed position contacting the valve plate, At least one projection and at least one guide groove are constructed between the fixed piece and the movable piece, so that the movable piece can rotate along the central axis, so that the pressing portion can separate the valve plate to an open position; Wherein, when the pressing portion is moved to the closed position, the opening will be permanently kept in the shielded state, and when the pressing portion is moved to the open position, the opening will be affected by the airflow and can Switch between the shielding state and the circulating state. The rotary mask air valve according to claim 1, wherein the first assembly portion is configured with a ring wall and a plurality of stoppers, and the ring wall is provided with a neck forming a ring recess and a contact with the outer periphery of the valve plate. the top, and the blocks are distributed between the neck and a chassis of the valve seat; the second assembly part has a bracket connected to the ring wall and a column extending from the bracket. The rotary mask air valve as claimed in claim 2, wherein the fixing member has a ring portion and a plurality of through portions extending downward from the ring portion, and a bottom of the through portion is provided with a locking block that fits with the depression of the ring. , and the guide groove is formed on an outer surface of the penetrating part; the blocks will divide the ring wall into a plurality of fixed areas equally, and the penetrating parts are arranged at intervals in the ring part, and the size of the penetrating part Wait The size of the fixing area is such that each penetration portion can penetrate into one of the fixing areas, so that the fixing member can be connected to the gas valve seat in a plurality of selected orientations. The rotary mask air valve according to claim 3, wherein the movable member has an outer ring portion surrounding the outer side of the pressing portion, so that a penetration space is formed between the outer ring portion and the pressing portion Between the outer ring portion and the pressing portion, there are a plurality of pin portions, so that the penetration space is equally divided into a plurality of penetration areas, and the bumps are distributed on the outer ring portion, so that The bump overlaps the inside of the punching area. The rotary mask air valve according to claim 4, wherein when the penetrating portions of the fixing member penetrate into the penetrating regions of the movable member, the protruding block will be pushed by the penetrating portion and outwardly Flex until the bump is adjacent to the guide slot, the bump will then flex inward into the guide slot. The rotary mask air valve according to claim 4, wherein the air valve cover further comprises a shutter, the shutter is provided with a pipe part and a cover part, the pipe part can be inserted into a hole of the pressing part, The pipe part can be sheathed with the cylinder of the second assembly part and can be pressed against an inner edge of the valve plate; the cover part is shielded above the passing space, and the cover part can cooperate with the outer ring part Together they form a continuous arc surface. The rotary mask air valve of claim 1, wherein the guide groove is provided with a vertical section, an inclined section, and at least one concave section disposed below the inclined section, so that the pressing portion can be positioned at the opening position, the closed position, or an adjusted position between the open position and the closed position. The rotary mask air valve of claim 1, wherein the first assembly portion is configured as a ring wall, the ring wall is provided with a neck formed with a ring recess and a top formed with a plurality of slots, the second The assembly part has a bracket connected to the ring wall and a socket formed in the bracket; the valve plate has There is a blocking piece and a plug extending from the blocking piece, the plug is inserted into the socket so that an outer periphery of the blocking piece can contact the top. The rotary mask air valve according to claim 8, the fixing member comprises a cover part and a plurality of through parts extending downward from the cover part, the guide groove is formed on an outer side surface of the through part, and the An inner side surface of the penetration portion is provided with a clamping block which fits with the recess of the ring and a protruding rib which fits with the slot, so that the fixing piece can be connected to the gas valve seat in any orientation.

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