JP2014119249A - Ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To conveniently attach/detach a mask.SOLUTION: A ventilator includes a frame having a cylindrical air duct part provided with an opening from a front side toward rear part, and a mask which is attached to the front side of the frame, with the frame provided with a shaft part which is connected to the mask to adjust a gap between the mask and the air duct part. On a front end side outer wall of the shaft part, a first protruding block, and a second protruding block closer to the air duct part side than the first protruding block are provided. An attaching ring is provided on a rear surface of the mask. On an inner wall which is a part of the attaching ring, a first protruding part and a second protruding part which protrude toward a central part of the attaching ring are provided. The first protruding part is positioned on the side closer to the mask than the second protruding part. A first opening in which the first protruding block is inserted is provided on the side closer to the mask than the first protruding part in the attaching ring. The second protruding part constitutes a positioning hook which engages with the second protruding part.

Description

  The present invention relates to a ventilator, and more particularly to a mask fixing structure for a ventilator.

  FIG. 1 is a schematic diagram of a known ventilator. A ventilator 1 which is a prior art ventilator is attached to a wall and communicates directly with the outside of the room or communicates with the outside of the room through a pipe. Outdoor air enters the ventilator 1 and flows into the room from the space between the mask 2 and the frame 3, or indoor air enters the space between the mask 2 and the frame 3 and is discharged outside the room (for example, patents) Reference 1).

  The ventilator 1 includes a frame 3 having a wind tunnel portion 4 that opens rearward from the front surface, a shaft portion 5 attached to the frame 3, and a mask 2 attached to the front surface of the frame 3, the shaft portion. A protruding block 6 is provided at an end where 5 is connected to the center of the panel mask 2, and an inverted “U” -shaped concave block 7 having an opening on one side and a windbreak plate 8 are provided on the back surface of the mask 2. In order to stabilize the attachment of the mask 2, members such as the elastic piece 9, the protruding piece 10, and a positioning piece (not shown) are also installed.

  When installing the ventilation device 1, first, the frame 3 is fixed to the wall, and the mask 2 is attached to the frame 3.

  Since the elastic piece 9 has elasticity when the mask 2 is attached, the elastic piece 9 is pushed by the protruding block 6 of the shaft portion 5 and then the mask 2 is pulled downward, and the inverted “U” -shaped concave block 7 protrudes downward. Lock to block 6. After the protruding block 6 is inserted into the inverted “U” -shaped concave block 7 of the inverted “U” shape, the elastic piece 9 returns to its original position, and the tip of the elastic block 9 is inverted “U” -shaped concave block 7. Close the lower opening and complete the installation.

  When the user removes the mask 2, press the recessed portion installed in the center of the mask 2 in advance to adjust the length of the shaft portion 5 to maximize the length of the shaft portion 5, and the windbreak plate Pushing the mask 2 while pulling up 8 lifts the mask 2 upward in the ventilator 1, the tip of the elastic piece 9 is close to the back of the mask 2 and does not block the opening of the concave block 7, like this Remove mask 2.

  The prior art ventilator is complex to install and requires many components.

Chinese Patent No.ZL201120051760.7 Specification

  In such a conventional ventilator, there is a problem that the mounting is complicated and there are many necessary members.

  This invention solves the said subject, and it aims at providing the ventilation apparatus which ensures that a mask is attached or detached conveniently and improves the attachment property of a mask.

  In order to achieve the above object, the present invention provides a ventilator, a frame having a cylindrical wind tunnel opening from the front to the rear, a mask attached to the front of the frame, and a frame connected to the mask. Providing a shaft portion for adjusting a gap between the mask and the wind tunnel portion; providing a first projecting block on a front end side outer wall of the shaft portion; and providing a second projecting block closer to the wind tunnel portion side than the first projecting block, An attachment ring is provided on the back surface of the mask, a first protrusion and a second protrusion that protrude toward the center of the attachment ring are provided on a part of the inner wall of the attachment ring, and the first protrusion is the second The mounting ring is located closer to the mask than the protrusion, and the mounting ring is provided with a first opening for inserting the first protrusion block closer to the mask than the first protrusion. Second protruding block It constitutes a positioning hook to be engaged.

  A front end of the shaft portion is a hollow cylinder, and a guide column perpendicular to the mask is installed in the middle of the mounting ring on the mask.

  A plurality of projecting ribs perpendicular to the mask are provided on the inner wall of the mounting ring, and the first projecting rib adjacent to the positioning rod in the plurality of projecting ribs has a gap between the first projecting rib and the first projecting rib. The gap between the other protruding ribs, where the block is larger than or equal to the size of the cut surface parallel to the mask, is set smaller than the gap between the first protruding rib and the positioning rod.

  The first projecting block includes a plurality of projecting blocks, and among the plurality of projecting blocks, cut surfaces perpendicular to the shaft portion are not equal to each other, and the inner wall of the mounting ring is perpendicular to the mask. A plurality of protruding ribs are provided, and a gap between the first protruding rib adjacent to the positioning rod in the plurality of protruding ribs and the positioning rod is large, and a size of a cut surface in which the first protruding block is parallel to the mask. A gap between other protruding ribs that is greater than or equal to the thickness is set smaller than a gap between the first protruding rib and the positioning rod.

  The first projecting block includes a first first projecting block and a second first projecting block, and the size of the cutting surface perpendicular to the shaft portion is first than the second first projecting block. The first protruding block is larger.

  Providing a plurality of protruding ribs perpendicular to the mask on the inner wall of the mounting ring, among the plurality of protruding ribs or among a plurality of gaps generated between the protruding rib adjacent to the positioning rod and the positioning rod, There is only one gap larger than the cut surface of the first first protruding block, and the other gap is smaller than the cut surface of the first first protruding block.

  The attachment ring is provided at the center of the back surface of the mask.

  A slit adjacent to the positioning rod;

  The slit is L-shaped or linear.

  The first protruding block has one protruding block, and the second protruding block has one protruding block.

  The number of projecting blocks of the first projecting block is two, and the number of projecting blocks of the second projecting block is two.

  The first opening is provided adjacent to the first protrusion.

  The number of the first openings is the same as the number of the first protruding bolocks.

  The number of positioning rods and the number of second protruding bolocks are the same.

  On the back surface of the mask, a current plate that protrudes toward the frame was provided.

  The angle of the peripheral edge of the current plate is 15 ° or more and 50 ° or less.

  The current plate is formed of a porous material.

  The advantages of the present invention ensure that the mask is conveniently attached and detached.

Schematic diagram of conventional ventilation equipment Overall perspective view of the present invention Schematic representation of the shaft of the present invention Schematic representation of the mask of the present invention Schematic view of the mounting ring of the present invention from different angles Schematic view of the mounting ring of the present invention from different angles Schematic of the shaft portion of the present invention not engaged with the mounting ring Schematic drawing engaging the shaft of the present invention with a mounting ring. Schematic view from different angles of the second type shaft of the present invention Schematic view from different angles of the second type shaft of the present invention Virtual plan view in which the second type shaft portion of the present invention is not engaged with the mounting ring Cross-sectional view of the entire second embodiment of the present invention Schematic of the mask of the second embodiment of the present invention

  FIG. 2 is a perspective view of the entire present invention. As shown in the figure, the ventilator 100 of the present invention includes a frame 200 having a cylindrical wind tunnel portion 210 that is opened rearward from the front surface, and a mask 300 attached to the front surface of the frame 200, The frame 200 is provided with a shaft 400 that is connected to the mask 300 and adjusts a gap between the mask 300 and the wind tunnel 210.

  FIG. 3 is a schematic view of the shaft portion of the present invention. As shown in the drawing, a first protruding block 411 and a second protruding block 431 are provided on the outer wall on the front end side of the shaft portion 400 of the present invention. As shown in the figure, the second projecting block 431 is provided so as to be closer to the wind tunnel 210 side than the first projecting block 411.

  FIG. 4 is a schematic view of the mask of the present invention, and FIGS. 5A and 5B are schematic views from different angles of the mounting ring of the present invention. As shown in the figure, a mounting ring 500 is provided on the back surface of the mask 300 of the present invention, and a first protruding portion 510 and a second protruding portion projecting toward a central portion of the mounting ring 500 on a part of the inner wall of the mounting ring 500. A protrusion 520 is provided, the first protrusion 510 is located closer to the mask 300 than the second protrusion 520, and the mounting ring 500 is closer to the mask 300 than the first protrusion 510. A first opening 531 for inserting the first protruding block 411 is provided on the side. The first opening 531 is adjacent to the first protrusion 510. The second protrusion 520 constitutes a positioning rod 521 that engages the second protrusion block 431.

  A plurality of projecting ribs 551, 552, 553, 554, 555, etc. perpendicular to the mask 300 are provided on the inner wall of the mounting ring 500, and the first projecting rib 551 adjacent to the positioning rod 521 therein and the positioning The gap between the first protrusion block 411 and the ridge 521 is larger than or equal to the size of the cut surface parallel to the mask 300. That is, the first protruding block 411 can be stored. The gaps between the other protruding ribs 552, 553, and 554 are smaller than the gap between the first protruding rib 551 and the positioning rod 521. As shown in the figure, the protruding rib 552 is also close to the positioning rod 521, but there is a gap between them, so in the present invention, this case is defined as not adjacent.

  That is why none of the gaps between the other projecting ribs 552, 553, 554 can accommodate the first projecting block 411, and the first projecting rib 411 is adjacent to the positioning bar 521. It can only rotate until it is inserted into the gap between 551 and the positioning rod 521, thus limiting the mounting direction of the mask 300. Therefore, when any mark or trademark is marked on the mask 300, if the mounting direction of the mask 300 is limited by the above method, the user can prevent the sign or trademark from being tilted by tilting the mask 300. Can be ensured.

  FIG. 6A is a schematic view in which the shaft portion of the present invention is not engaged with the mounting ring. FIG. 6B is a schematic view of the shaft portion of the present invention engaged with the mounting ring. As shown in the figure, when the mask 300 is attached, it is not necessary to adjust the length of the shaft portion 400 in advance, and the attachment ring 500 of the mask 300 is kept until the bottom portion of the attachment ring 500 contacts the front end 401 of the shaft portion 400. By simply covering the shaft portion 400 of the frame 200 and rotating the mask 300 clockwise, the attachment is completed. Specifically, the mask 300 is rotated so as to move the first protrusion 510 of the mounting ring 500 to the first protrusion block 411. Since the mounting ring 500 is provided with a first opening 531 for inserting the first protruding block 411 on the side closer to the mask 300 than the first protruding portion 510, the first protruding block 411 has a first opening. It can be inserted into 531 and can rotate in the first opening 531. Therefore, the mask 300 can continue to rotate. At this time, since the first protruding block 510 is sandwiched between the mask 300 and the top of the first opening 531 (in other words, between the mask 300 and the first protruding portion 510), the shaft 400 is perpendicular to the mask 300. To escape from the mounting ring 500.

  As the first opening 531 is rotated to the first protruding block 411, the positioning rod 521 including the second protruding portion 520 is also rotated to the second protruding block 431 side away from the front end of the shaft portion 400. A slit 522 is formed in the vicinity of the positioning bar 521. By pressing the second protruding block 431, the positioning bar 521 can be deformed toward the outside of the mounting ring 500, and the positioning bar 521 is rotated clockwise to the second protruding block. Can rotate to the other side of 431. At this time, since the second protruding block 431 does not press the positioning rod 521, the positioning rod 521 returns to its original shape, engages the second protruding block 431, and the mask 300 does not rotate counterclockwise. .

  The shape of the slit 522 is a Roman L shape, but is not limited thereto. For example, the shape may be a linear shape or an arbitrary shape, and the size of the slit 522 may ensure that the positioning rod 521 can be deformed to a certain extent. In addition, although it is preferable to provide the slit 522, the slit may not be provided if the positioning rod 521 can be deformed to a certain extent.

  The second projecting block 431 is engaged with the positioning rod 521 and positioned, and the first projecting block 411 rotates to the end of the first opening 531 and is stopped by the end wall 541 and cannot continue to rotate. That is, the mask 300 cannot continue to rotate clockwise. At this time, the shaft portion 400 is prevented from moving in a direction parallel to the mask 300 and escaping from the mounting ring 500.

  When the mask 300 is removed, the mask 300 is urged and rotated counterclockwise, and the pressing of the second projecting block 431 causes the positioning rod 521 to be deformed toward the outside of the mounting ring 500, so that the second projecting block 431 is It is possible to escape from the positioning rod 521 by rotating it counterclockwise. At the same time, the first protruding block 411 is also separated from the end wall 541 of the first opening 531 and escapes from the first opening 531, thereby removing the mask 300.

  As described above, as long as the mask 300 is rotated clockwise and counterclockwise, the attachment and removal of the mask 300 can be completed, and no extra members are used, thereby reducing the cost.

  Further, as shown in FIGS. 3, 5A, and 5B, the front end 401 of the shaft portion 400 is a hollow cylinder, and the guide column 540 perpendicular to the mask 300 is installed in the middle of the mounting ring 500 in the mask 300. To do. When attaching the ventilator 100, the frame 200 is first fixed to the wall, and then the mask 300 is attached to the frame 200. Therefore, when attaching the mask 300, the mask 300 itself is obstructed and the shaft portion 400 is accurately attached by the mounting ring 500. The front end 401 is difficult to cover.

  Due to the structure of the guide pillar 540, when the mask 300 is attached, the middle guide pillar 540 of the attachment ring 500 of the mask 300 is inserted into the front end 401 of the shaft portion 400. Then, the mounting ring 500 of the mask 300 is guided by the guide column 540, gradually approaches the shaft portion 400, and the mask 300 is rotated again until the bottom of the mounting ring 500 contacts the front end 401 of the shaft portion 400 to complete the mounting. . At this time, the position of the inside of the front end 401 of the shaft part 400 is limited by the guide pillar 540, and the outside is attached to the mounting ring 500 of the mask 300, so that the connection between the mask 300 and the front part 401 of the shaft part 400 becomes more closely and stably. Become.

  7A and 7B are schematic views from different angles of the second type shaft portion of the present invention. FIG. 8 is a virtual plan view in which the second type shaft portion of the present invention is not engaged with the mounting ring. As shown in the drawing, a plurality of first protruding blocks 421 and 422 and a plurality of second protruding blocks 432 and 433 are provided on the second type shaft portion 400 ′ of the present invention. Between the plurality of first protruding blocks 421 and 422, the size of the cut surface perpendicular to the shaft portion 400 'is not equal to each other. A plurality of protruding ribs 551, 552, 553, 554, and 555 perpendicular to the mask are provided on the inner wall of the mounting ring 500, and a plurality of positioning rods 561 and 562 are provided.

  As shown in the drawing, the size of the cut surface parallel to the mask 300 of the first first protruding block 421 is larger than the cut surface of the second first protruding block 421 parallel to the mask 300. A gap C1 between the first protruding rib 551 adjacent to the first positioning rod 561 and the first positioning rod 561 is larger than the size of the cut surface of the first first protruding block 421 parallel to the mask 300. Or it is equally installed, that is, the first first protruding block 421 can be accommodated. The gap C2 between the second protruding rib 552 adjacent to the second positioning bar 562 and the second positioning bar 562 is set larger than or equal to the size of the cut surface parallel to the mask 300 of the second protruding block 422. That is, the second first protruding block 422 can be accommodated. The gap C1 is larger than the gap C2. The gaps C3 and C4 between the other protruding ribs 552, 553, and 554 are also smaller than the gaps C1 and C2. That is why none of these gaps C2, C3, and C4 can accommodate the first first protruding block 421, and only the mask 300 is rotated until C1 overlaps the first first protruding block 421. In this way, the mounting direction of the mask 300 is limited. Therefore, when marking or marking a mark on the mask 300, if the mounting direction of the mask 300 is limited by the above-described method, the user can prevent the sign or trademark from being tilted by tilting the mask 300 for mounting. It can be secured.

  In the embodiment, “the gap C1 between the first protruding rib 551 adjacent to the first positioning rod 561 and the first positioning rod 561 is the mask 300 of the first first protruding block 421. It is set to be larger than or equal to the size of the cutting plane that is parallel to the other than “the clearance C1 between the first protruding rib 551 adjacent to the first positioning rod 561 and the first positioning rod 561”. For example, for one of “a gap between a protruding rib and an adjacent protruding rib (C3, C4, etc.)” or “a gap between a plurality of protruding ribs (C3, C4, etc.)”, the first protruding block ( For example, the first first protruding block 421) may be stored. In this case, the position of the first opening 531 is also set to match the position where the first first protruding block 421 is inserted. Further, in this case, if a possible gap through which the first first projecting block 421 passes is C3, “a gap between a plurality of projecting ribs (C3, C4, etc.) or one of a plurality of projecting ribs and the above-mentioned Among these gaps (C1, C2, C3, C4, etc.) between the positioning rods (C1, C2), a gap (C3) larger than the size of the cut surface of the first first protruding block 421 The other gaps (C1, C2, C4, etc.) may be smaller than the size of the cut surface of the first first projecting block 421.

  In the embodiment, the number of protruding blocks of the first protruding block is one or two. However, the number may be two or more, and in this case, the numerical aperture of the first opening May be the same number.

  In the embodiment, the number of the projecting blocks of the second projecting block is one or two, but the number may be two or more, and in this case, the number of positioning rods May be the same number.

  In the embodiment, the mask is rotated “clockwise” when the mask is attached, and the mask is rotated “counterclockwise” when the mask is removed, but the first protruding block, the second protruding block, By changing the shape of the first opening and the positioning rod, the mask may be rotated “counterclockwise” when the mask is attached, and the mask may be rotated “clockwise” when the mask is removed.

  FIG. 9A is an overall cross-sectional view of the second embodiment of the present invention. FIG. 9B is a schematic diagram of the mask of the second embodiment of the present invention. As shown in the figure, a rectifying plate 301 that protrudes toward the frame 200 may be provided on the back surface of the mask 300. The angle of the peripheral edge of the current plate 301 is not less than 15 ° and not more than 50 °. When air flows from the frame 200 toward the mask 300, the air flows along the current plate 301 without colliding with the back surface of the mask 300 from the frame 200. Therefore, the air flows from the opening between the mask 300 and the frame 200. When the air flows, the turbulent air flow on the back surface of the mask 300 is eliminated, and the air noise due to the turbulent flow can be reduced. In addition, since air flows along the rectifying plate 301, air is not returned to the wall side, so even if the ventilation air is dirty, the air is not directed to the wall on which the ventilator 100 is installed, and is dirty. It is possible to prevent the wall surface from being soiled by air. Since the angle θ of the peripheral edge of the rectifying plate 301 is 15 ° or more, the dirty air does not go to the wall surface side, and the wall surface can be prevented from being dirty.

  However, if the angle θ is too large, the ventilation air volume is reduced, so the angle θ is preferably 50 ° or less. If angle (theta) is 50 degrees or less, it can prevent that ventilation airflow falls.

  The rectifying plate 301 is made of a porous material. Since the rectifying plate 300 is formed of a porous material, the air flowing along the rectifying plate 300 has a silencing effect in the porous portion when flowing to the rectifying plate 300, and ventilation noise can be reduced.

100 Ventilator 200 Frame 300 Mask 400 Shaft 500 Mounting Ring

Claims (17)

A frame having a cylindrical wind tunnel portion opened from the front to the rear,
A mask attached to the front of the frame,
The frame is a ventilation device that is connected to a mask and includes a shaft portion that adjusts a gap between the mask and the wind tunnel portion,
On the outer wall on the front end side of the shaft portion, a first projecting block and a second projecting block closer to the wind tunnel than the first projecting block are provided,
Provide a mounting ring on the back of the mask,
A first protrusion and a second protrusion that protrude toward the center of the attachment ring are provided on a part of the inner wall of the attachment ring,
The first protrusion is located closer to the mask than the second protrusion,
A first opening for inserting the first projecting block is provided on a side closer to the mask than the first projecting portion of the mounting ring,
The ventilator that constitutes a positioning rod for engaging the second projecting block with the second projecting portion. The front end of the shaft portion is a hollow cylinder,
The ventilation apparatus according to claim 1, wherein a guide pillar perpendicular to the mask is installed in a middle portion of the mounting ring of the mask. A plurality of protruding ribs perpendicular to the mask are provided on the inner wall of the mounting ring,
The gap between the first protruding rib adjacent to the positioning rib in the plurality of protruding ribs and the positioning rib is larger than or equal to the size of the cut surface parallel to the mask of the first protruding block,
The ventilation device according to claim 1, wherein a gap between the other protruding ribs is smaller than a gap between the first protruding rib and the positioning rod. The first protruding block includes a plurality of protruding blocks, and the cut surfaces perpendicular to the shaft portion are not equal to each other between the plurality of protruding blocks,
A plurality of protruding ribs perpendicular to the mask are provided on the inner wall of the mounting ring,
The gap between the first protruding rib adjacent to the positioning rib in the plurality of protruding ribs and the positioning rib is larger than or equal to the size of the cut surface parallel to the mask of the first protruding block,
The ventilation device according to claim 1, wherein a gap between the other protruding ribs is smaller than a gap between the first protruding rib and the positioning rod. The first protruding block includes a first first protruding block and a second first protruding block,
The ventilation device according to claim 1, wherein the first first projecting block is larger than the second first projecting block with respect to the size of the cut surface perpendicular to the shaft portion. A plurality of protruding ribs perpendicular to the mask are provided on the inner wall of the mounting ring,
Among the plurality of gaps between the plurality of protruding ribs or between the protruding ribs adjacent to the positioning rod and the positioning rod, a gap larger than or equal to the cut surface of the first first protruding block. The ventilation apparatus according to claim 5, wherein there is only one, and the other gap is smaller than the size of the cut surface of the first first protruding block.   The ventilation device according to any one of claims 1 to 6, wherein the attachment ring is provided at a central portion of the back surface of the mask.   The ventilation apparatus according to any one of claims 1 to 6, further comprising a slit provided in the vicinity of the positioning rod.   The ventilation apparatus according to claim 8, wherein the slit has an L shape or a linear shape.   The ventilator according to any one of claims 1 to 4, wherein the number of projecting blocks of the first projecting block is one, and the number of projecting blocks of the second projecting block is one.   The ventilator according to any one of claims 1 to 6, wherein the number of projecting blocks of the first projecting block is two, and the number of projecting blocks of the second projecting block is two.   The ventilation device according to any one of claims 1 to 6, wherein the first opening is provided adjacent to the first protrusion.   The number of said 1st opening and the number of the 1st protrusion blocks are the same number, The ventilation apparatus in any one of Claims 1-6 characterized by the above-mentioned.   The ventilation device according to any one of claims 1 to 6, wherein the number of the positioning rods and the number of the second protruding blocks are the same.   The ventilation device according to any one of claims 1 to 6, wherein a rectifying plate that protrudes toward the frame is provided on a back surface of the mask.   The ventilation device according to claim 15, wherein an angle of a peripheral edge of the rectifying plate is 15 ° or more and 50 ° or less.   The ventilation device according to claim 15, wherein the current plate is made of a porous material.

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