JP5622135B1 - Ventilation unit - Google Patents

Abstract

To provide a ventilation unit capable of easily exchanging a filter part regardless of the installation height. A ventilation unit main body 10 installed in an interior of a ventilation unit main body 10 installed in a ventilation through hole provided in a building and accommodating an expansion / contraction mechanism to which a shutter unit 60 is attached is inserted into the accommodation unit 30. A filter portion having an inner shape portion, an outer peripheral portion of the housing portion 30 and an inner shape portion of the filter portion, and a hook that is latched with relative rotation between the ventilation unit body 10 and the filter portion. A ventilation unit comprising a stop means. [Selection] Figure 1

Description

  The present invention relates to a ventilation unit for ventilating a building.

  2. Description of the Related Art Conventionally, a ventilation unit that detachably engages an outer frame body and a mechanism main body with a relative rotation is known. For example, in the ventilation unit, the guide portion at the inner peripheral edge of the outer cylinder portion that is inserted into a through-hole provided in the building and the protrusion at the opening end portion of the mechanism body inserted into the outer frame body are relatively rotated. Engage with it. In addition, the guide portion is provided with a fitting portion into which a protrusion is fitted to be locked, and the fitting portion is formed by providing a portion protruding in the center direction of the outer frame near the terminal end of the guide portion. A ventilation unit is known (see Patent Document 1).

Japanese Patent No. 4670115

  However, in the structure of Patent Document 1, when replacing the filter portion, it is necessary to first disengage the outer frame body and remove the mechanism main body. The filter unit is disposed inside the filter unit enclosing unit located on the rear side of the mechanism main body, and is attached to the mechanism main unit by engaging the filter unit pressing member with the filter unit enclosing unit. That is, since it is necessary to release the engagement of the filter part presser on the rear side of the mechanism main body after removing the mechanism main body, there is a concern about the complexity of the work.

  When the filter portion is replaced, it is necessary to engage the mechanism body by rotating the mechanism body with the projection of the mechanism body aligned with the guide portion of the outer cylinder portion. For this reason, due to the characteristics of the ventilation unit that is installed in a relatively high place, it is difficult to perform the engagement work after visually confirming the matching state, and it is a frustration work. Therefore, there is a concern that the replacement work of the filter portion as a whole becomes complicated.

  Therefore, the present invention solves such problems, and an object of the present invention is to provide a ventilation unit that can easily replace the filter part regardless of the installation height.

In order to solve the above-mentioned problems, the ventilation unit according to claim 1 of the present invention is provided in a ventilation through hole provided in a building, and an accommodating portion for accommodating an expansion / contraction mechanism to which a shutter portion is attached is provided inside A ventilation unit body to be installed; a filter part having an inner shape part inserted into the accommodation part; and an outer periphery part of the accommodation part and an inner shape part of the filter part, respectively, the ventilation unit body and the filter Latching means for latching with relative rotation with the section, the latching means with a bulging portion and a guide groove that move with relative rotation between the ventilation unit main body and the filter portion. The guide groove has a first guide groove formed in the front-rear direction of the ventilation unit main body, and a latching surface for restricting the filter portion from moving forward due to contact with the bulging portion. With 2 guide grooves The latching surface has a first fitting portion formed in the front-rear direction, and the bulging portion has a second fitting portion that is locked in correspondence with the first fitting portion. It is characterized by having.

Moreover, the ventilation unit according to claim 2 of the present invention is the ventilation unit according to claim 1, wherein the first fitting portion includes a protruding portion protruding in a contact surface direction with the bulging portion. The second fitting portion is a fitting portion into which the protruding portion is fitted.

The ventilation unit according to claim 3 of the present invention is the ventilation unit according to claim 1 or 2 , wherein the outer peripheral portion of the inner shape portion hooks the filter portion on the housing portion. This is the gripping part.

  In the ventilation unit of the present invention, even when it is difficult to hook the ventilation unit main body and the filter part while visually observing, the filter part is held by gripping the inner shape part and matching the centers of the filter part and the accommodating part. Can be easily hooked by inserting it into the housing and turning it.

  Further, when replacing the filter part, it is not necessary to remove the mechanism main body as compared with the conventional work, so that the filter part can be easily replaced as a whole, and work efficiency can be improved.

It is a partially broken perspective view in a state where a shutter part of a ventilation unit in an example of the present invention is an open state. It is a disassembled perspective view of the ventilation unit in the Example of this invention. It is a partially broken perspective view of the ventilation unit main body and filter part of the ventilation unit in the Example of this invention. It is the (a) front view of the filter part of the ventilation unit in the Example of this invention, (b) HH sectional drawing. (A) State explanatory drawing before latching of the filter part of the ventilation unit in the Example of this invention, (b) State explanatory drawing after latching.

  Hereinafter, a ventilation unit according to an embodiment of the present invention will be described with reference to the drawings. The ventilation unit is fitted into a through-hole provided in the wall of the building, and the opening of the air supply opening generated between the opening of the ventilation unit main body and the shutter unit by the shutter unit attached to the ventilation unit. The area can be adjusted.

  In the ventilation unit, the shutter portion side exposed to the indoor side is the front of the ventilation unit, and the wall surface of the building is the rear of the ventilation unit.

  As shown in FIGS. 1 and 2, the ventilation unit according to the embodiment of the present invention mainly includes a ventilation unit body 10 installed in a ventilation through hole provided in a building, and a front side of the ventilation unit body 10. The filter unit 50 is detachably attached to the ventilation unit main body 10 and the shutter unit 60 is movable with respect to the ventilation unit main body 10.

  As shown in FIGS. 1 to 3, the ventilation unit main body 10 includes a frame body 20 that is fitted into a ventilation through hole provided in a building, a housing portion 30 that is installed inside the frame body 20, and a housing. The telescopic mechanism 40 accommodated in the part 30 is provided.

  The frame 20 is fitted into a through-hole provided in the wall surface of the building. As shown in FIG. 2, the frame 20 includes a cylindrical body 21, a fitting recess 22, and a flange 23, and is formed of, for example, a synthetic resin.

  The cylindrical body 21 is formed, for example, in a substantially cylindrical shape, and has a through hole 24 in the axial direction. A fitting recess 22 that allows the shutter 60 to be fitted is provided at one end of the opening from the outer periphery of the cylindrical body 21 in the outer diameter direction. Further, a flange portion 23 is provided extending in the outer diameter direction of the fitting recess 22. At this time, the fitting concave portion 22 is not particularly limited as long as it has a shape corresponding to the outer shape of the shutter portion 60, and the flange portion 23 can also have an appropriate shape such as an annular shape or a polygonal shape. .

  In addition, it is desirable to provide a contact piece 26 that is positioned when the filter unit 50 is installed on the inner peripheral portion 25 of the cylindrical body 21. The contact piece 26 is provided so as to protrude from the inner peripheral portion 25 in the inner diameter direction. In this embodiment, the two narrow contact pieces and the two wide contact pieces are provided so as to face each other. However, the present invention is not limited to this, and an appropriate shape can be obtained. Of course.

  As shown in FIGS. 1 to 3, the accommodating portion 30 is installed inside the frame body 20 and accommodates the expansion / contraction mechanism 40, and is formed of, for example, a synthetic resin. More specifically, the housing part 30 has a front end on the flange part 23 side opened, and the support part 31 in a state of being arranged coaxially with the axial direction of the cylindrical body 21 is a plan view of the frame body 20. Is supported at the approximate center.

  In the present embodiment, the storage portion 30 protrudes from the four locations of the inner peripheral portion 25 in the inner diameter direction and is supported by the support portion 31 formed in a substantially cross shape inside the cylindrical body 21. The support form of 30 is not particularly limited.

  Further, a hooking means for the filter portion 50 is provided on the outer peripheral portion of the housing portion 30. The said latching means latches with the relative rotation of the ventilation unit main body 10 and the filter part 50. FIG.

  The latching means of the housing part 30 is a guide groove 32. The guide groove 32 includes a first guide groove 33 and a second guide groove 34. The 1st guide groove 33 guides the bulging part 55 of the filter part 50 mentioned later. Moreover, the 2nd guide groove 34 latches the said bulging part 55, and controls that the filter part 50 moves to the front side which is an indoor side. In the present embodiment, the guide grooves 32 are provided at two opposing positions on the outer peripheral portion of the accommodating portion 30.

  The first guide groove 33 is formed from one end of the housing portion 30 on the flange 23 side toward the rear side while being recessed from the outer peripheral portion of the housing portion 30 in the inner diameter direction. That is, the first guide groove 33 is formed in the front-rear direction of the ventilation unit body 10. At this time, it is desirable to form the rear end surface of the first guide groove 33 and the front end surface of the contact piece 26 on substantially the same plane. Thereby, the filter part 50 can be installed in the stable state.

  The second guide groove 34 is provided adjacent to the first guide groove 33 in a state where the second guide groove 34 is located on the side of the latching means in the rotational direction. More specifically, on the outer peripheral portion of the accommodating portion 30, a region in which a substantially outer portion of a bulging portion 55 described later is movable is communicated between the first guide groove 33 and the second guide groove 34. Provided in a state.

  Further, the front end surface of the second guide groove 34 is a latching surface 35 with which a later-described bulging portion 55 abuts. The retaining surface 35 restricts the bulging portion 55 from coming into contact with and moving the filter portion 50 forward. Furthermore, it is desirable that the hooking surface 35 is provided with a protruding portion 36 that protrudes toward the rear side in the direction of the contact surface with the bulging portion 55. The relationship between the guide groove 32 and the bulging portion 55 will be described later.

  As shown in FIGS. 1 to 3, the telescopic mechanism 40 is configured so that two sliders can be advanced and retracted in the front-rear direction by an urging means. Thereby, the shutter part 60 attached to the ventilation unit main body 10 can be opened and closed.

  In the present embodiment, as shown in FIG. 2, the telescopic mechanism 40 urges the first slider 41 and the second slider 42 that are slidably assembled in the front-rear direction, and the sliders 41 and 42 in a direction away from each other. An urging means 43 is provided. The first slider 42 is provided with a locking member 44 having a claw portion (not shown), and the second slider 42 is provided with a guide path (not shown) for guiding the claw portion. The guide path has a loop shape from the front part to the rear part through the rear part. The extending / contracting mechanism 40 configured as described above is fixed to the accommodation unit 30 in an attachable / detachable manner via an engagement piece 45 provided on the first slider 41.

  As shown in FIGS. 1 to 3, the filter unit 50 is detachably attached to the front side of the ventilation unit body 10. The filter portion 50 is formed by connecting an annular outer shape portion 51 and an inner shape portion 52 provided inside the outer shape portion 51 via a support portion 53. Further, a filter 54 is disposed between the outer shape portion 51 and the inner shape portion 52 defined by the support portion 53.

  Further, as shown in FIG. 4B, for example, the front end surface of the inner shape portion 52 is formed so as to protrude from the front end surface of the outer shape portion 51. The outer peripheral part of the inner shape part 52 can be used as a grip part when the filter part 50 is inserted into the housing part 30.

  In the present embodiment, the filter unit 50 is supported by a support unit 53 that protrudes in the inner diameter direction from four locations of the outer shape portion 51 and is formed in a substantially cross shape. However, the support form of the inner shape portion 52 is particularly limited. Is not to be done.

  Further, the inner peripheral portion of the inner shape portion 52 in the filter portion 50 is provided with a hooking means for the housing portion 30. The said latching means latches with the relative rotation of the ventilation unit main body 10 and the filter part 50. FIG.

  The hooking means of the filter part 50 is a bulging part 55. The front end surface of the bulging portion 55 is a location where the retaining surface 35 of the second guide groove 34 abuts. Furthermore, it is desirable to provide the bulging portion 55 with a contact portion 56 and a fitting portion 57 corresponding to the protruding portion 36. In the present embodiment, the bulging portions 55 are provided at two opposing positions on the inner peripheral portion of the inner shape portion 52.

  More specifically, the abutting portion 56 is provided at one end portion on the rotation direction side of the latching means with respect to the bulging portion 55. The contact portion 56 is more preferably inclined to reduce sliding resistance with the protruding portion 36. And the contact part 56 is made into the top part of the bulging part 55, and the fitting part 57 is provided toward the other end part in the state via the step part to the back side. As a result, the protruding portion 36 is fitted into the fitting portion 57 via the contact portion 56, whereby the locking means can be brought into a locked state.

  As shown in FIGS. 1 and 2, the shutter unit 60 is attached to the ventilation unit main body 10, and an opening / closing region of the air supply port generated between the opening of the ventilation unit main body 10 and the shutter unit 60 is defined by the expansion / contraction mechanism 40. It can be adjusted. The shutter unit 60 has an elastic member 62 installed on a lid 61 corresponding to the fitting recess 22 of the ventilation unit main body 10, and an expansion / contraction mechanism via an attachment portion (not shown) protruding from the lid 61. 40.

  In the ventilation unit configured in this way, the filter unit 50 can be fitted into the ventilation unit body 10 and the filter unit 50 can be rotated clockwise, for example, so that both can be integrated into a hooked state. Moreover, both can be made into a separation state by rotating the filter part 50 counterclockwise, for example. More specifically, the replacement work of the filter unit 50 is performed as follows.

  As shown in FIG. 5A, when the filter unit 50 is attached to the ventilation unit main body 10, the centers of the filter unit 50 and the storage unit 30 are matched with each other while the inner shape unit 52 is gripped. Then, the inner shape portion 52 of the filter portion 50 is inserted into the housing portion 30 such that the bulging portion 55 of the filter portion 50 is guided to the first guide groove 33 of the housing portion 30. Accordingly, the rear end surface of the first guide portion 33 and the bulging portion 55 come into contact with each other, and the contact piece 26 and the outer shape portion 51 come into contact with each other as shown in FIG. It will be in the state positioned with respect to it.

  At this time, since the first guide groove 33 is formed from one end on the front side in the housing portion 30 toward the rear side, the bulging portion 55 is formed in the first guide groove 33 at a relatively high place while visually observing. Even in a situation where it is difficult to guide, the bulging portion 55 can be forcibly guided to the first guide groove 33 by rotating the filter portion 50 against the housing portion 30.

  Next, as shown in FIG. 5B, in a state where the filter unit 50 is positioned, the filter unit 50 is rotated with respect to the ventilation unit main body 10 while holding the inner shape portion 52, and the bulging portion 55 is moved to the second guide groove 34. More specifically, the filter portion 50 is rotated so that the protruding portion 36 of the second guide groove 34 is slid with respect to the abutting portion 56 of the bulging portion 55, and the protruding portion It is rotated until 36 reaches the fitting portion 57. Thereby, the filter part 50 will be in the state hooked with respect to the ventilation unit main body 10, and will be in a locked state.

  That is, when the bulging portion 55 comes into contact with the retaining surface 35 or the protruding portion 36 of the second guide groove 34, the movement of the filter portion 50 toward the front side of the ventilation unit body 10 can be restricted. Furthermore, unless the filter part 50 is rotated counterclockwise with a force exceeding a predetermined value, the locked state of the projecting part 36 and the bulging part 55 is not released.

  Thus, by rotating the filter part 50 clockwise, both can be integrated and can be set in a latched state. Further, when both are separated, the filter unit 50 may be rotated counterclockwise, and the description thereof is omitted.

  As described above, according to the ventilation unit according to the present invention described above, the ventilation unit is installed at a relatively high place, and even if it is difficult to guide the bulging portion 55 to the first guide groove 33 while visually checking, The bulging portion 55 can be forcibly guided to the first guide groove 33 by rotating the filter portion 50 while pressing it against the housing portion 30.

  Further, since the filter unit 50 is attached to the front side of the ventilation unit main body 10, that is, in the vicinity of the fitting recess 22, it is not necessary to remove the mechanism main body unlike the conventional case, and the filter unit 50 can be easily replaced. Work efficiency can be improved.

  Moreover, in the Example mentioned above, it is possible to change suitably the shape, a dimension, material, etc. of the guide groove 32 and the bulging part 55, and to implement. For example, the first guide groove 33 may be formed parallel to the axial direction of the frame body 20, or may be formed in an inclined shape or a spiral shape. Not limited to. That is, it is only necessary to be formed in the front-rear direction of the ventilation unit body 10.

  Further, the guide groove 32 can be provided on the filter part 50 side, and the bulging part 55 can be provided on the storage part 30 side. Furthermore, the telescopic mechanism 40 is not limited to the above-described configuration. For example, in a released state in which the slider is pushed backward by a play amount (pushing allowance) from the shortest state (closed state of the shutter unit 60), the extension mechanism 40 becomes the longest state when the pushing force is weakened. It is only necessary that the shutter unit 60 attached to the ventilation unit main body 10 can be opened and closed by the telescopic mechanism.

  Furthermore, it is needless to say that a part of the configuration can be omitted or a part of the configuration can be extracted.

DESCRIPTION OF SYMBOLS 10 Ventilation unit main body 26 Contact | abutment piece 30 Accommodating part 32 Guide groove 33 1st guide groove 34 2nd guide groove 35 Suspension surface 36 Projection part 40 Telescopic mechanism 50 Filter part 51 Outer part 52 Inner part 55 Swelling part 57 Fit-in part 60 Shutter part

Claims (3)

A ventilation unit body installed in a through-hole for ventilation provided in the building, and a housing unit that houses an expansion / contraction mechanism to which the shutter unit is attached;
A filter portion having an inner shape portion inserted through the housing portion;
Provided with an outer peripheral part of the housing part and an inner shape part of the filter part, respectively, and provided with a latching means for latching with relative rotation of the ventilation unit main body and the filter part ,
The hooking means includes a bulging portion that moves with relative rotation between the ventilation unit main body and the filter portion, and a guide groove, and the guide groove is formed in a front-rear direction of the ventilation unit main body. 1 guide groove, and a second guide groove having a hooking surface for restricting the bulging part from abutting and restricting the filter part from moving forward,
The latching surface has a first fitting portion formed in the front-rear direction, and the bulging portion has a second fitting portion that is locked in correspondence with the first fitting portion. ventilation unit, characterized by comprising a. The first fitting part is a protruding part protruding in a contact surface direction with the bulging part, and the second fitting part is a fitting part into which the protruding part is fitted. The ventilation unit according to claim 1. The ventilation unit according to claim 1 or 2 , wherein the outer peripheral portion of the inner shape portion is a grip portion when the filter portion is hooked on the housing portion.

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