KR102092686B1 - Diffuser with anti-loosening structure - Google Patents

Abstract

A housing having an inlet formed at one end and an outlet formed at the other end; And a shield plate installed in the housing to move between an open position in which the inlet is opened and a closed position in which the inlet is closed. It includes; a driving unit that is operated so that the shielding plate is moved between the open position and the closed position, the drive unit includes a gripping part that can be gripped by a user; A rotating shaft protruding from the gripping portion; A fastening socket formed to rotate by inserting the rotating shaft and fixed to the housing; A cam device for converting the rotation of the rotating shaft into a linear motion between the open position and the closed position of the shield plate; A locking protrusion formed on the outer circumferential surface of the rotating shaft; Including a guide hole formed on the inner circumferential surface of the fastening socket and formed with a contact portion that can be temporarily fixed by contacting the locking projection; and provides a structure for preventing rotation of the rotating shaft unintentional by the user, including the locking projection and the contacting unit, including a housing It further includes a fixed portion having an elastic force to provide a diffuser that is easy to install and release without screw fastening, thereby providing more improved convenience to the user.

Description

Diffuser with anti-lock structure {DIFFUSER WITH ANTI-LOOSENING STRUCTURE}

The present invention relates to a diffuser, and more particularly, to a diffuser that is installed for ventilation or air conditioning in a building and serves as a passage between internal air and external air.

Generally, a diffuser is installed on a ceiling for ventilation or air conditioning in a building. The diffuser has both sides open, and an open portion on one side is connected to a duct extending to the outside, so that the indoor air and the external air move. At this time, the opening portion of the other side formed on the indoor side can be appropriately used as needed by adjusting the opening and closing amount as necessary, and an extended portion of the curved surface is further formed to smoothly flow the air.

1 is a perspective view of a conventional diffuser, and FIG. 2 is a perspective view of the fixing part of FIG. 1.

Referring to FIG. 1, the diffuser has a shielding plate 200 positioned at an inlet formed toward the interior, and the opening and closing amount of the inlet is adjusted while the shielding plate 200 is moved in the vertical direction by rotation of the user's grip portion 310. . Therefore, the conventional diffuser is designed to facilitate rotation of the gripper 310 for user convenience. However, this facilitates rotation, and the opening / closing amount of the inlet not intended by the user is changed while the gripping part 200 rotates by the flow of air flowing in and out along the extension part 120.

In addition, as shown in FIG. 2, the conventional diffuser inserts the housing into the inside of the ceiling through a hole formed in the ceiling to fix it, and is formed outside the hole in the ceiling. It was installed by being screwed in the extension portion 120 formed on the indoor side. At this time, one side of the support 420 for screw fastening was formed to protrude to the inside of the body 110. Therefore, in the conventional diffuser, the flow of air is hindered by the fixing part 410 protruding inward, and a tool such as a drill is required when installing or releasing, and the gripping part 310 is disposed outside the extension part 120. Even when using a tool, there was a problem that the assembly itself was difficult.

Republic of Korea Registered Patent No. 10-1437932 (registered on August 29, 2014) Republic of Korea Utility Model No. 20-2009-0008622 (released on August 26, 2009) Republic of Korea Patent Publication No. 10-2015-0114212 (released on October 12, 2015)

The present invention has been devised to solve the above problems, and prevents rotation over a certain angle by the flow of air without interference with the rotation of the gripping part by the user, and can be easily installed on the ceiling without screwing. And it is intended to provide a diffuser with improved user convenience through an easy structure.

In an embodiment of the present invention, in order to solve the above problems, a housing having an inlet port formed at one end and a discharge port formed at the other end; A shield plate installed in the housing to move between an open position in which the inlet is opened and a closed position in which the inlet is closed; And a driving unit that is operated such that the shielding plate is moved between the open position and the closed position, and wherein the driving unit is a gripping unit that can be gripped by a user; A rotating shaft protruding from the gripping portion; A fastening socket formed to rotate by inserting the rotating shaft and fixed to the housing; A cam device for converting the rotation of the rotating shaft into a linear motion between the open position and the closed position of the shield plate; A locking protrusion formed on the outer circumferential surface of the rotating shaft; It provides a diffuser having an anti-loosening structure including; a guide hole formed on the inner circumferential surface of the fastening socket and formed with a contact portion capable of being fixed by contact with the locking protrusion.

The housing may further include a cylindrical body having an inlet formed at one end and an outlet formed at the other end, and an extension part extending outward from the circumference of the inlet.

In addition, a fixed portion protruding from the outer circumferential surface of the body to fix the housing by pressing the extension portion may be further formed.

The fixing part may include a fixing shaft formed on an outer circumferential surface of the body and a support that rotates around the fixing shaft, and the support may press the extension part by an elastic force.

The cam device is a screw projection formed on the outer peripheral surface of the rotating shaft; A fixing socket inserted into the fastening socket and having a screw groove in which the screw projection is accommodated on an inner circumferential surface; And a fixing protrusion formed on an outer circumferential surface of the fixing socket.

A guide groove in which the fixing protrusion is accommodated may be further formed in the fastening socket.

The rotating shaft penetrates through the fixing socket, and the locking protrusion can rotate along the guide hole.

A plurality of locking protrusions may be formed on the outer circumferential surface of the rotating shaft, and may be tapered to gradually widen from the outer circumferential surface of the rotating shaft.

The guide hole may be formed convexly inside the fastening socket to form a plurality of contact portions spaced apart at regular intervals, and the contact portion is tapered in the same direction as the tapered direction. Can be formed.

As described above, according to the problem solving means of the present invention, various effects including the following can be expected. However, the present invention is not established when all of the following effects are exerted.

The diffuser according to the present invention is provided with a temporarily fixed contact portion, and does not interfere with the user's operation, but also prevents rotation over a certain angle by the flow of air, thereby preventing the user from changing the opening / closing amount of the inlet. It has an effect.

Therefore, the user can provide an improved convenience by adjusting an appropriate amount of opening and closing of the diffuser as necessary.

The extension part of the housing has a concave shape that is connected to the inlet port, is extended outwardly, and has a convex shape, so that air can be easily introduced into the inlet port side.

A fixed protrusion is formed in the fixed socket, and a guide groove is formed in the fastening socket to accommodate the fixed protrusion, so that it is possible to easily grasp the position of the fastening, and at the same time, when the grip is rotated, the shielding plate is prevented from rotating together. It has the effect.

In addition, screw grooves are formed on the inner circumferential surface of the fixed socket, and screw projections are formed on the outer circumferential surface of the rotating shaft, so that when the gripping part is rotated, the screw projections are accommodated in the screw grooves to convert the shielding plate into a linear motion in the up and down direction Have

A locking protrusion is formed at one end of the rotating shaft, and a contact portion formed convexly inside the fastening socket is formed in the guide hole, so that a certain amount of force is required to pass over the locking protrusion in contact with the contact portion and prevent the rotating portion from rotating arbitrarily can do.

A plurality of contact portions are formed, and even when the locking projections pass over one contact portion due to the flow of air, continuous locking is generated to minimize rotation of the rotating shaft.

In addition, the locking projection is formed to taper to gradually widen from the outer circumferential surface of the rotating shaft toward the lower side, thereby minimizing damage such as breaking of the distal end by repeated rotation.

Accordingly, the contact portion formed in the guide hole is also formed so that the locking projection is tapered in the same direction as the tapered direction, so that the user can easily rotate the gripping portion and at the same time keep the contact force constant on the contacting surface. Alternatively, damage due to concentration of stress in a portion of the guide hole can be prevented.

The fixing part includes a fixed shaft fixed to the housing and a rotatable support around a fixed axis, so that when fastened, the support can be rotated upwards to be easily inserted into the inside of the ceiling, and again rotated downward to cover the ceiling. There is an effect that can be easily installed while pressing downward.

In addition, the support has an elastic force to the lower side, it is possible to return to the original position and pressurize the ceiling without additional work when installing, and there is an advantage that no separate work is required even when released.

The gripping portion of the diffuser of the present invention is disposed outside the extension portion and can be easily gripped and rotated by the user, and the gripping portion is located outside the shielding plate so that the interior of the housing is not visible regardless of whether the shielding plate is shielded or not. It has the effect of providing beauty.

1 is a perspective view of a conventional diffuser.
Figure 2 is a perspective view of the fixing structure of Figure 1;
3 is a perspective view of one embodiment of the present invention.
Figure 4 is an exploded perspective view of Figure 3;
Figure 5 is an exploded perspective view as viewed from the bottom of Figure 3;
6 is a perspective view of the housing of FIG. 3;
7 is an enlarged perspective view of the guide hole of FIG. 6.
8 is a cross-sectional view taken along line VIII-VIII of FIG. 7.
9 is a perspective view of a part of the gripping part and the cam device of FIG. 3;
10 is a side view and a plan view of the fixing protrusion of FIG. 9;
11 is a view showing a coupling and driving method of the cam device.
12 is a view showing a rotation direction of the support of FIG. 6;
13 is a view showing the direction of the elastic force of the support of FIG. 12;

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

3 is a perspective view of one embodiment of the present invention, FIG. 4 is an exploded perspective view of FIG. 3, and FIG. 5 is an exploded perspective view of the bottom surface of FIG. 3. FIG. 6 is a plan view of the housing of FIG. 3, FIG. 7 is a perspective view of the guide hole of FIG. 6, and FIG. 8 is a cross-sectional view taken along line VII-VIII of FIG. 9 is a perspective view of a part of the gripping part and the cam device of FIG. 3, FIG. 10 is a side view and a plan view of the fixing protrusion of FIG. 9, and FIG. 11 is a view showing a coupling and driving method of the cam device.

3 to 11, in the diffuser according to an embodiment of the present invention, the inlet is formed at one end, the housing 100 at which the outlet is formed at the other end, and the open position where the inlet is opened and the inlet is closed. It includes a shield plate 200 installed in the housing to move between the closed position, and the driving unit is operated so that the shield plate 200 is moved between the open position and the closed position.

The housing 100 has a cylindrical shape, and both sides are opened to be a passage through which indoor air and external air flow in and out. Specifically, one end is formed with an outlet connected to a duct connected to the outside, the other end is connected to the room, and a shieldable inlet is formed.

The shielding plate 200 is for controlling air flowing in and out of the diffuser in a disc shape, and is preferably formed to have the same size as the size of the inlet, and the inlet has a predetermined indentation so that the shielding plate 200 can be seated. It is formed.

The shielding plate 200 is seated at an inner end formed in the inlet port and moves between a closed position blocking the inlet port and an open position located farthest from the inlet port and controls the opening and closing amount of the inlet port. Upon exiting the closed position, the inlet begins to open and opens to its maximum when it reaches the open position. However, for the sake of illustration, the position at which the inlet is opened to the maximum is defined as the open position.

The driving unit is operated to move the shield plate 200 between a closed position and an open position. The driving unit is a rotating plate 320 formed by protruding from the gripping portion 310 and the gripping portion 310, which can be gripped by a user, and a rotation plate 320 fixed to the housing 100, rotation of the rotating shaft 320, a shielding plate It includes a cam device for converting into a linear motion of (200), a locking protrusion 321 formed on the outer circumferential surface of the rotating shaft 320, a guide hole 331 formed on the inner circumferential surface of the fastening socket 330.

The driving unit allows the user to move the shielding plate 200 by rotation of the gripping unit 310 and to control the amount of opening and closing of the inlet through this. Therefore, the gripping portion 310 is formed on the outermost side to facilitate the user's gripping, and protrudes for rotation to form the rotating shaft 320.

In addition, the gripping part 310 is located outside the shielding plate 200 and is formed to be larger than the shielding plate 200 so as not to show the inside of the housing 100 regardless of whether the shielding plate 200 is shielded. desirable. This has the effect of providing the beauty of the indoor environment.

Therefore, even when the gripper 310 rotates by the user, the diffuser 310 of the present invention has a structure in which the gripper 310 is fixed at the same position and only the shield plate 200 can be moved in the vertical direction.

The fastening socket 330 is formed in a cylindrical shape with both sides open, and is fixed to the housing. Specifically, one side is formed by opening the front surface for insertion of the rotating shaft 320 and the fixing socket 342, and the other side is formed by partially opening it for screwing with the rotating shaft 320.

In addition, since the rotating shaft 320 is inserted and rotated, it is positioned on the extension line of the rotating shaft 320 and is disposed close to the inlet side. Since it is preferably disposed in the center of the housing 100, it is fixed by a fixing rib 333 so as not to interfere with the flow of air.

The fastening socket 330 is fixed to the housing 100 to fasten the shielding plate 200 and the drive unit and the housing on the same central axis, and a guide hole 331 is formed on the inner surface screwed with the rotating shaft 320 to form air It prevents the rotation of the rotation shaft 320 according to the flow.

The cam device includes a screw projection 343 formed on a rotating shaft, a fixing socket 342 inserted into a fastening socket 330 and having a screw groove 341, and a fixing protrusion 344 formed on an outer circumferential surface of the fixing socket 342. .

In the cam device, the screw projection 343 formed on the rotating shaft is accommodated and screwed into the screw groove 341 formed in the fixing socket 342, and the fixing projection 344 formed on the fixing socket 342 is fastened to the socket 330. It is accommodated in the guide groove 334 formed in the insertion is fixed, the rotary shaft 320 is fixed through a fixing socket 342, one end is screwed to the fastening socket 330.

Therefore, the rotation shaft 320 can be rotated by the rotation of the gripping portion 310, but is fixed to the fastening socket 330 and thus cannot be moved in the vertical direction, and the fixed socket 342 has a fixed protrusion 344. It is accommodated in (334), but rotation is impossible, but can be moved up and down by screwing with the rotating shaft (320). That is, when the gripper 310 is rotated by the user, the rotation shaft 320 formed on the gripper 310 rotates, and the cam device converts it into a linear motion in the vertical direction of the fixed socket 342. Therefore, the shielding plate 200 connected to the fixed socket 342 moves between the open position and the closed position, and adjusts the shielding amount of the inlet.

One end of the rotating shaft 320 penetrates the fixing socket 342 to form a thread inward for screwing, and one end of the rotating shaft 320 is recessed to form an inner end to facilitate screwing, and one end of the rotating shaft The inner end formed in has a structure accommodated in the guide hole 331 formed in the fastening socket 330.

At this time, a locking projection 321 is formed on the outer circumferential surface of the inner end formed at one end of the rotating shaft 320, and a contact portion 332 on which the locking projection 321 contacts the inner circumferential surface that meets the rotating shaft 320 of the fastening socket 330 ) Is formed, the guide hole 331 is formed to have an anti-loosening structure to prevent rotation of the rotating shaft 320 which is not intended by the user.

Specifically, the locking projection 321 is formed to protrude from the outer circumferential surface, the guide hole 331 is formed with a convexly formed contact portion 332, the rotating shaft 320 is rotated to rotate the locking projection 321 It has a structure that is in contact with the contact portion 332 and must exceed the contact portion 332. This is a structure in which the contact portion 332 has a convex shape and requires a predetermined force or more as it moves inward.

However, considering the size of the engaging projection 321 and the shape of the contact portion 332, it does not interfere with the rotation of the user's gripping portion 310, but rotation of the rotating shaft 320 by the air flow is prevented. .

It is preferable that a plurality of contact portions 332 formed in the guide hole 331 are spaced apart at regular intervals. This is because the rotation of the rotating shaft 320 can be minimized by continuously causing a jam even when the locking protrusion 321 is rotated beyond one contact 332 by the flow of air.

In addition, the engaging projection 321 is preferably formed to be tapered to gradually widen from the outer circumferential surface of the rotating shaft 320 toward the lower side. Both ends of the locking protrusion 321 are connected to the rotating shaft 320 at both ends, but only the side is connected to the rotating shaft 320 to prevent stress from being concentrated and cracked at the outer edge, thereby improving durability. to be.

Accordingly, the contact portion 332 formed in the guide hole 331 is also preferably formed so that the locking projection 321 is tapered in the same direction as the tapered direction. This allows the user to easily rotate the gripping portion 310, and at the same time, to maintain a constant contact force on the contacting surface, thereby preventing damage due to stress concentration in a part of the locking protrusion 321 or the guide hole 331. This is to prevent.

FIG. 12 is a view showing a rotation direction of the support of FIG. 6, and FIG. 13 is a view showing a direction of the elastic force of the support of FIG. 12.

12 and 13, the diffuser, which is an embodiment of the present invention, the housing 100 protrudes from the outer circumferential surfaces of the extension portion 120 and the body 100 extending outwardly from the inlet, and the extension portion 120 Pressing to form a fixing portion 400 for fixing the housing 100. The fixing part 400 is fixed at a point where the body 110 and the extending part 120 meet and is formed to protrude outside the extending part 120.

The extension part 120 is formed to extend outward along the circumference of the inlet. Specifically, along the circumference of the inlet, the height increases outwardly and is formed concavely. When the height increases to the open position of the shielding plate 200, it has a shape in which the height is lowered convexly again toward the indoor side. This is to allow the flow of air along the curved surface to flow naturally toward the inlet.

The fixing part 400 is formed by being drawn out to the outer circumferential surface of the body 100. Specifically, a fixed shaft 410 is formed to protrude outward from a portion where the body 110 and the extended portion 120 meet, and is connected to the fixed shaft 410 and extends with a connection portion 421 having elasticity in a downward direction. It is formed of a support portion 422 that protrudes outwardly of the portion 120.

The support 420 rotates around the fixed shaft 410 and has an elastic force formed toward the extension part 120. Therefore, when the diffuser is installed on the ceiling, the support 420 is rotated upward to be positioned close to the body 110 to insert only the body 110 portion of the housing 100 into a hole formed in the ceiling. At this time, upon insertion, the support 420 is returned to its original position by elastic force, and accordingly, the support 420 presses the outside of the hole formed in the ceiling, and the extension 120 is located on the indoor side, and the diffuser is It is fixed to the ceiling.

In addition, when the diffuser is released from the ceiling, the operator applies a force greater than the elastic force of the support 420 without a separate tool, and when the diffuser is pulled, the support 420 located outside the hole formed in the ceiling rotates upward and the body 110 ) It is located near and can be easily released.

Therefore, referring to FIGS. 2 and 5, the diffuser of the present invention does not interfere with the flow of air because the fixing part 400 is not protruded inside the body 110, which is a passage of air, unlike the conventional diffuser. Also, it is possible to provide a diffuser that is easy to install or remove without a separate tool.

The preferred embodiments of the present invention have been exemplarily described above, but the scope of the present invention is not limited only to such specific embodiments, and it is possible to appropriately change the scope of the present invention within the scope of the claims. It corresponds.

100 Housing 110 Body 120 Extension
200 Shielding plate 310 Gripping part 320 Rotation axis
321 Protrusion 330 Fastening socket 331 Guide hole
332 Contact 333 Fixed rib 334 Guide groove
341 Screw groove 342 Fixing socket 343 Screw projection
344 Fixing projection 440 Fixing part 410 Fixing shaft
420 support 421 connection 422 support

Claims (10)

delete delete delete delete delete A housing formed of a body having an inlet formed at one end and an outlet formed at the other end, and an extension part extending outward from the circumference of the inlet;
It is formed of a fixed shaft integrally installed on the outer circumferential surface of the body, a connection portion that rotates around the fixed shaft and generates elastic force according to the rotation, and a support portion that extends outwardly from the connection portion and is disposed on one side of the extension portion, A fixing part for fixing the housing;
A shield plate installed in the housing to move between an open position in which the inlet is opened and a closed position in which the inlet is closed; And
Includes; a driving unit that is operated so that the shield plate is moved between the open position and the closed position,
The driving unit
A gripping part that the user can grip;
A rotating shaft protruding from the gripping portion;
A fastening socket fixed to the housing and projecting to an outer circumferential surface to form a guide groove;
A cam device for converting the rotation of the rotating shaft into a linear motion between the open position and the closed position of the shield plate;
A locking protrusion formed to be tapered so that the size of the cross section gradually widens from the outer circumferential surface of the rotating shaft toward the lower side of the outer circumferential surface of the rotating shaft; And
Guides formed convex inward along the inner circumferential surface of the fastening socket, but having an axial cross-section tapering in the same direction as the tapering direction, the contact portions to which the locking projections are temporarily fixed are spaced apart at regular intervals Hole; includes,
The cam device
A screw projection formed on the rotating shaft;
A fixing socket inserted into the fastening socket along a fixing protrusion accommodated in the guide groove and having a screw groove receiving the screw protrusion on an inner peripheral surface; And
Includes; fixing projection formed on the outer peripheral surface of the fixing socket
The rotating shaft
One end penetrates the fixing socket, the engaging projection is formed to rotate along the guide hole,
The fixing part
After rotating the connecting portion to place the supporting portion in the vertical direction of the extending portion, only the body portion is inserted, and the housing is installed by returning the supporting portion according to the restoring force of the connecting portion,
A diffuser with an anti-loosening structure, characterized in that the housing is released in a direction perpendicular to the extension by rotating the support by pulling the housing in a direction opposite to the installation direction.
delete delete The method of claim 6,
The jam projection
A diffuser having an anti-loosening structure formed in plural on the outer circumferential surface of the rotating shaft. delete

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