JP4136236B2 - louver - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a louver with a built-in filter that is attached to a housing such as electrical equipment to prevent ventilation and condensation, and more particularly, to a louver that allows a filter to be replaced from the outside of a housing.
[0002]
[Prior art]
Conventionally, a filter built-in louver attached to a housing such as an electric facility has been replaced from the inside of the housing when replacing the filter.
[0003]
[Problems to be solved by the invention]
When replacing the filter from the inside of the housing, the filter can be replaced without any problem if there is room in the space inside the housing. However, in general, there are many cases where there is no room in the inside of the housing where devices are arranged. When there is no allowance, the workability of filter replacement deteriorates, and in the worst case, filter replacement may not be possible. Accordingly, an object of the present invention is to provide a louver that enables filter replacement from the outside of the housing.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention of claim 1 is attached to the through hole of the partition wall, and is provided with a main body having a filter housing portion, detachably attached to the main body from the outside of the partition wall, and the slats A formed cover, a main body and a cover formed on the main body, and after the cover is inserted into the main body, the guide mechanism for rotating the cover by a predetermined angle around the shaft and connecting the two is integrally attached to and detached from the outside of the partition wall. A lock mechanism that locks the rotation of the cover and the hood with respect to the main body by operating the operation unit at a position where the cover is rotated by a predetermined angle by a guide mechanism. characterized by comprising and.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 (a) is a longitudinal sectional view showing an embodiment of a louver for outdoor installation according to the invention of claim 1, an enlarged view of a portion (b) is (a), and FIG. 2, FIG. 3 FIG. 1 FIG. 2A is an external view seen from the outside direction, FIG. 2B is an enlarged sectional view of part a of FIG. 3A, and FIG. The external view seen from the direction, (b) is AA sectional drawing of (a).
[0007]
In the figure, reference numeral 1 denotes a main body, and through holes 11 parallel to a bottom surface portion which is inside in an attached state are formed at equal intervals, and a wire mesh 12 is stretched on the inside thereof. 2A and 3A show a state where the wire mesh 12 is removed. The inside of the wire mesh 12 becomes a filter storage portion 13, and the filter 2 is detachably stored after assembly. A male screw 14 is formed on the outer peripheral portion of the main body 1. The fixing ring 3 is screwed onto the male screw 14 from the inside of the mounting panel 5. A pair of engaging projections 15 are provided on the inner periphery of the main body 1 at a pitch of 180 degrees. Further, as shown in FIG. 2A, a rotational groove 17 is formed in the range of about 145 degrees on the inner surface of the outer peripheral flange portion 16 of the main body 1. A hook-shaped portion 17b is formed via the portion 17a.
[0008]
4 and 5 are part views showing details of the cover 4 which is the part of FIG. 1, FIG. 4B is an external view seen from the outside, and FIGS. It is a side view of b). FIG. 5 is a cross-sectional view taken along the line BB in FIG. In the figure, reference numeral 4 denotes a cover, and a plurality of blades 41 having a triangular cross section are formed in parallel and at equal intervals inside an outer peripheral portion 40 which is an outer side in an attached state. In the circumferential direction of the body portion 49 of the cover 4, a pair of grooves 42 with which the protrusions 15 of the main body 1 are engaged is provided at a pitch of 180 degrees.
[0009]
As shown in FIGS. 4A and 4C, the end portion of the groove 42 is an introduction portion 42 a that is continuous with the inner surface of the cover 4 in order to receive the protrusion 15. These grooves 42 and protrusions 15 constitute a guide mechanism. In addition, a storage portion 44 that slidably stores a lock piece 43 (see FIG. 1) as an operation portion that engages with the groove 17 of the main body 1 is formed on the front surface of the cover 4. Further, an O-ring groove 45 is formed on the entire circumference of the body portion 49 of the cover 4.
In addition, positioning protrusions 47 and 48 are formed on one surface of the outer peripheral portion 40.
4 and 5, the illustration of the lock piece 43 shown in FIG. 1 is omitted for convenience. Further, as shown in FIG. 1, the lock piece presser 46 is fixed to the surface of the storage portion 44 so as to hold the lock piece 43 slidably. The lock piece presser 46 is also shown in FIGS. 4 and 5. It is omitted.
[0010]
6A is a rear view of the hood 7, and FIG. 6B is a side view.
The back plate 71 of the hood 7 is formed with a round hole 72 through which the body 49 of the cover 4 is inserted, and at three places around the round hole 72 are notches 74 that receive the end portions of the lock pieces 43. Notches 73 and 75 corresponding to the positioning protrusions 47 and 48 are formed.
[0011]
7 and 8 are exploded perspective views showing the assembly procedure. The assembly procedure will be described below. First, in FIG. 7, the main body 1 is inserted through the waterproof packing 6 from the front of the through hole 51 formed in the mounting panel 5 that is a partition wall. Subsequently, the main body 1 is fixed to the mounting panel 5 by screwing the fixing ring 3 to the male screw 14 on the outer peripheral portion of the main body 1 from the inside of the mounting panel 5.
[0012]
Next, in FIG. 8, the disc-shaped filter 2 is inserted into the filter storage portion 13 in the inner portion of the wire mesh 12 of the main body 1 that is fixed. Next, after mounting an O-ring (not shown) in the groove 45 of the cover 4, the cover 4 is inserted into the inside of the hood 7 while aligning the notches 73 and 75 with the positioning protrusions 47 and 48 of the cover 4. The cover 4 is inserted into the main body 1 with a part of the cover 4 protruding from the round hole 72 portion of the hood 7. At this time, the lock piece 43 is already attached to the storage portion 44, and its end is engaged with the notch 74 of the hood 7, and the lock piece 43 is fitted into the groove 17 of the main body 1. At the same time, the protrusion 15 of the main body 1 is engaged with the groove 42 via the introduction portion 42 a of the cover 4. When both are engaged, the protrusion 15 reaches the end of the groove 42 when the cover 4 is rotated clockwise together with the hood 7 and is rotated about 145 degrees. That is, here, the hood 7 integrated with the cover 4 is set in a state in which it is rotated about 145 degrees counterclockwise from the upright state, and then the assembly is started.
FIG. 9 shows the set position and the fixed position of the hood 7.
As described above, the hood 7 and the cover 4 are set in an integrated state, and then rotated by a predetermined angle with respect to the main body 1 with the protrusion 15 and the groove 42 engaged with each other. And the cover 4 is integrally connected through the mounting panel 5.
[0013]
Next, the lock piece 43 is slid in the outer circumferential direction, and the lock piece 43 is inserted into the hook-shaped portion 17b at the end of the groove 17 to hold the position. When the lock piece 43 is moved, it is configured so as to be accompanied by a click operation by getting over the step portion 17a shown in FIG. 2b, and not to return unless an external force is applied to lower the lock piece 43. Keep it. In this state, the cover 4 is held together with the hood 7 at a normal position of the main body 1, and the assembly of the louvers is completed.
The lock mechanism described above is effective in preventing mischief such as removing only the hood 7 outdoors or stuffing the gap between the wing plates 41 of the cover 4.
[0014]
When disassembling the louver or exchanging the filter 2, the cover 4 and the hood 7 can be removed from the main body 1 by operating in the reverse order.
In the above-described louver, a space inside the mounting panel 5 is required for work until the main body 1 is attached to the mounting panel 5, but after the main body 1 is attached, the space inside the mounting panel 5 is completely removed. Since the cover 4 and the hood 7 can be attached and detached without use, workability for subsequent filter replacement and inspection is significantly improved.
[0015]
Next, another embodiment will be described. This embodiment relates to a louver for indoor installation. Specifically, in the above-described embodiment, the hood 7 and the lock piece 43 are removed, and the structure of a part of the cover 4A is changed, and other configurations and assembly procedures are almost common. FIG. 10 shows a longitudinal sectional view, common parts are denoted by common reference numerals, and detailed description thereof is omitted. In addition, although the groove | channel 17 of the main body 1 is unnecessary, you may use the main body 1 used in 1st Embodiment as it is. Also in this embodiment, after the main body 1 is attached, the cover 4 can be attached and detached without using any space inside the attachment panel 5, so that the workability of the subsequent filter replacement and inspection is significantly improved. .
[0016]
【The invention's effect】
As described above, according to the present invention, the cover is detachably attached to the main body from the outside of the partition wall. Therefore, when replacing the filter, the cover is removed from the outside of the partition wall, the filter is replaced, and then again. A cover can be attached. As described above, the filter replacement is performed from the outside of the partition wall, so that the filter can be easily replaced regardless of whether there is a space margin inside the housing to which the louver is attached.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
FIG. 2 is a diagram showing details of a main body in FIG.
FIG. 3 is a diagram showing details of a main body in FIG. 1;
FIG. 4 is a diagram showing details of a cover in FIG. 1;
5 is a BB cross-sectional view showing details of the cover in FIG. 1. FIG.
6 is a diagram showing details of the hood in FIG. 1. FIG.
FIG. 7 is an exploded perspective view showing an assembly procedure.
FIG. 8 is an exploded perspective view showing an assembly procedure.
FIG. 9 is an explanatory diagram showing an assembly procedure.
FIG. 10 is a longitudinal sectional view showing a second embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Main body 2 Filter 3 Fixing ring 4 Cover 4A Cover 5 Mounting panel 6 Waterproof packing 7 Hood 11 Through-hole 12 Wire mesh 13 Filter accommodation part 14 Male thread 15 Protrusion 16 Outer flange part 17 Groove 17a Step part 17b Hook part 40 Outer part 41 Wing Plate 42 Groove 43 Lock piece 44 Storage part 45 Groove 46 Lock piece presser 47, 48 Positioning projection 49 Trunk part 51 Through hole 71 Back plate 72 Round hole 73-75 Notch

Claims (1)

A main body that is attached to the through-hole of the partition wall and that forms the filter housing,
A cover that is detachably attached to the main body from the outside of the partition wall, and on which a slat is formed;
A guide mechanism formed on the main body and the cover, for rotating the cover by a predetermined angle around the axis after inserting the cover into the main body, and connecting the two;
A hood that is detachable integrally with the cover from the outside of the partition;
A lock mechanism that locks the rotation of the cover and the hood with respect to the main body by operating the operation unit at a position where the operation unit is formed in the cover part and the cover is rotated by a predetermined angle by the guide mechanism;
A louver characterized by comprising .

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