JP2007304745A - Mounting structure for gas leak alarm and its mounting plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily attach/detach a gas leak alarm to/from a mounting face. <P>SOLUTION: A switch box S is embedded in a mounting hole 1 formed at the predetermined position of a wall W, and a socket C connected to a power source cable 3 put through the through-hole 2a of a ceiling wall part 2 of the switch box S is supported by a socket support part 17 of a mounting plate P fixed to the switch box S, and arranged in the switch box S, and the groove part 11a of an alarm body 8 of a gas leak alarm G put through the insertion hole 6a of the mounting plate P is locked and held by locking pieces 13b of a pair of locking parts 13. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mounting structure for mounting a gas leak alarm on a mounting surface and a mounting plate thereof.

  The gas leak alarm is generally installed on a surface to be attached such as a wall. However, after a certain period (for example, 5 years) has elapsed after installation, the gas leak alarm is not subject to operation guarantee and needs to be replaced with a new one. For this reason, it is desirable that the gas leak alarm can be easily attached and detached.

  Various technologies have been filed for gas leak alarms. For example, the technique disclosed in Patent Document 1 attaches a main part of a gas leak alarm to an outlet embedded in a wall. However, the power plug of a normal gas leak alarm is extended through a cable. For this reason, in the technique disclosed in Patent Document 1, it is necessary to use a gas leak alarm having a special shape, and selection of a new gas leak alarm is limited at the time of replacement.

In the technique disclosed in Patent Document 2, the main body of the gas leak alarm is attached to the wall using an attachment plate. In the case of this technology, a general-purpose gas leak alarm can be used, but since the power plug is inserted into an outlet provided in a part different from the mounting plate, there is a possibility of catching the power plug cable, The beauty is also impaired.
Utility Model Registration No. 2549013 JP-A-10-124774

  In view of the above-described problems, an object of the present invention is to make it possible to easily attach and detach a gas leak alarm to a surface to be attached without impairing aesthetics.

Means for Solving the Problems and Effects of the Invention

  The present invention for solving the above-mentioned problems is a gas leak alarm mounting structure for mounting a gas leak alarm with a power plug extending through a cable to a mounting surface via a mounting plate. The mounting plate has a frame shape, enters into a mounting hole formed in the mounting surface, and supports an outlet connected to the wiring in the mounting surface, and a main part of the gas leak alarm And a main body portion of the gas leak alarm device is supported by an alarm device support portion of a mounting plate, and a power plug of the gas leak alarm device is provided on a mounting surface. It is characterized by being inserted into the outlet of the outlet support part arranged in the mounting hole.

  The gas leak alarm is attached via an attachment plate attached to the attachment hole of the attachment surface. At this time, the main part of the gas leak alarm is supported by the alarm support part of the mounting plate, and the power plug extended from the gas leak alarm through the cable is attached to the attachment hole of the attached surface. It is arranged and inserted into the outlet supported by the outlet support part of the mounting plate. That is, both the cable and the power plug are disposed in the mounting hole and are not exposed to the outside. This eliminates the possibility of catching the cable and also improves the aesthetics of the gas leak alarm in the attached state.

  According to a second aspect of the present invention, on the premise of the first aspect of the invention, a switch box is embedded in the mounting hole portion of the mounted surface, and the mounting plate is fixed to the switch box. Yes.

  Since the mounting plate is fixed to the switch box embedded in the mounting hole portion, it is not necessary to form a screw hole or the like on the mounting surface. This further improves the aesthetics of the gas leak alarm.

  According to a third aspect of the present invention, on the premise of the first or second aspect of the present invention, the alarm device support portion protrudes from a joint surface with a mounted surface of the mounting plate, and is attached to a main body portion of the gas leak alarm device. It is characterized by having a locking part for locking the provided locked part.

  The gas leak alarm device is held on the mounting plate by the alarm device support portion protruding from the mounting plate being locked to the locked portion provided in the main body portion of the gas leak alarm device. For this reason, it is easy to install and remove the gas leak alarm.

  According to a fourth aspect of the invention, on the premise of the third aspect of the invention, the alarm device support portion is made of an elastically deformable resin material.

  In the invention of claim 4, since the alarm device support portion is made of an elastically deformable resin material, the alarm device support portion is not likely to be damaged even when the gas leak alarm device is repeatedly attached and detached.

  According to a fifth aspect of the present invention, there is provided a frame interposed between the gas leak alarm and the attached surface in order to attach the gas leak alarm with a power plug extending through the cable to the attached surface. A gas leakage alarm mounting plate having an outlet supporting part for supporting an outlet connected to the in-plane wiring to be mounted and an alarm supporting part for supporting a main part of the gas leakage alarm It is characterized by that.

  Since the invention of claim 5 is a mounting plate used in the invention of the gas leak alarm mounting structure of claim 1, the same effect as the invention of claim 1 is exhibited.

  Examples of the present invention will be described. FIG. 1 is an exploded perspective view showing an attachment structure of a gas leak alarm device G of the present embodiment, FIG. 2 is a front view of the gas leak alarm device G attached to a wall W, and FIG. 4A is a cross-sectional view taken along line A, FIG. 4B is an enlarged view of a portion B, FIG. 4A is a perspective view seen from the front side of the mounting plate P of the present embodiment, and FIG. FIG. 5 is a perspective view of the mounting plate P to which the outlet C is attached as seen from another direction on the back side.

  As shown in FIGS. 1 to 3, the gas leak alarm G of this embodiment is attached to a switch box S embedded in a wall W via a mounting plate P. First, the switch box S will be described. As shown in FIG. 3, a switch box S made of a resin material is embedded in the mounting hole 1 formed at a predetermined position on the wall W. The switch box S is a square box with an open front, and the ceiling wall 2 has an electric cable 3 connected to an outlet C and a signal cable 4 connected to a gas leak alarm G. Each through-hole 2a for letting it pass is provided. In addition, two screw mounting portions 5 are provided on the upper and lower portions of the inner wall surface portion of the switch box S at predetermined intervals in the lateral direction (left-right direction). The main body portion (mounting plate main body portion 6) of the mounting plate P is provided with screw holes 6b corresponding to the respective screw mounting portions 5 of the switch box S, and the screws 7 inserted into the respective screw holes 6b correspond. Screwed onto the screw mounting portion 5. As a result, the mounting plate P is fixed to the switch box S. As shown in FIG. 1, the vertical direction of the switch box S is described as “vertical direction”, the horizontal direction is also described as “horizontal direction”, and the thickness direction is also described as “depth direction”.

  Next, the gas leak alarm G will be briefly described. As shown in FIGS. 1 and 3, the gas leak alarm G is attached to the alarm main body 8, the cable 9 extending from the back of the alarm main body 8, and the tip of the cable 9. A power plug 10 is provided. In the ceiling wall portion 11 and the bottom wall portion (not shown) of the alarm device main body portion 8, groove portions 11a are formed along the left-right direction.

  Next, the mounting plate P will be described. As shown in FIG. 1, the mounting plate P is made of a resin material, and in order to insert the alarm main body 8 of the gas leak alarm G, a square in which an insertion hole 6 a corresponding to the alarm main body 8 is formed. A frame-shaped mounting plate main body portion 6 and a peripheral wall portion 12 projecting from the peripheral edge portion of the insertion hole 6a along the depth direction on the back side are provided. As shown in FIGS. 4A and 4B, a pair of locking portions 13 are provided opposite to each other at the upper and lower portions of the peripheral wall portion 12. Since the configuration of the pair of locking portions 13 is the same except that the directions are opposite, only the locking portions 13 provided on the upper peripheral wall portion 12 will be described here. As shown in FIG. 5, the peripheral wall portion 12 is notched in the depth direction at two locations, each notch portion 14 is provided in the portion, and a locking portion 13 is formed between them. Yes. Since the base end portion 13a of the locking portion 13 is integrally connected to the peripheral wall portion 12 (in other words, the base end portion 13a is a part of the peripheral wall portion 12), the locking portion 13 is the base end portion. It can be rotated with 13a as a fulcrum. Thereby, a pair of latching | locking part 13 can be elastically deformed and can be expanded. And the latching piece 13b latched by the groove part 11a (refer FIG. 3) of the ceiling wall part 11 and bottom wall part of the gas leak alarm G is protrudingly provided in the part of the inner wall surface in each latching part 13. As shown in FIG. ing. The gas leak alarm G is inserted into the insertion hole 6a of the mounting plate P while the pair of locking portions 13 are expanded. When the ceiling wall portion 11 and the bottom wall portion groove portion 11a of the gas leak alarm G reach the portion of the locking piece 13b of each locking portion 13, each locking piece 13b enters the corresponding groove portion 11a and is locked. Is done. As a result, the gas leak alarm G is prevented from coming off the mounting plate P. In FIG. 1, reference numeral 15 denotes a guide part for facilitating insertion of the gas leak alarm G.

  As shown in FIGS. 3A and 3B, the tip ends of the pair of locking portions 13 are bent in an L-shaped cross section. For this reason, in the state where the gas leak alarm G is attached to the mounting plate P, a gap 16 is formed between each locking portion 13 and the alarm main body 8 of the gas leak alarm G. The operator inserts a tool such as a screwdriver into one of the gaps 16 and pushes the locking portion 13 upward on the ceiling wall portion 11 and downward on the bottom wall portion, whereby the locking piece 13b and the ceiling wall portion are expanded. 11 or each groove part 11a of a bottom wall part can be cancelled | released. Thereby, the gas leak alarm device G can be easily removed from the mounting plate P.

  Further, as shown in FIGS. 4A and 4B and FIG. 5, an outlet support portion 17 for supporting the outlet C is provided at one end portion in the left-right direction of the peripheral wall portion 12 of the mounting plate P. It has been. Here, the outlet C of the present embodiment has a substantially rectangular parallelepiped shape, and is attached to the outlet support part 17 with its front face 18 (side on which the pair of insertion holes 18a are provided) facing inward ( (See FIG. 5). Moreover, each fastener 19 (refer FIG. 1) is protrudingly provided by the both ends of the left-right direction of the outlet socket C in the front view (up-down direction in the state attached to the attachment plate P).

  As shown in FIG. 4B, the outlet support portion 17 includes a pair of support plates 20, 21 protruding from the peripheral wall portion 12 at a predetermined interval in the vertical direction, and a pair of support plates 20, And a hooking plate 22 projecting between the two. Each support plate 20, 21 is provided with a notch 20 a and a groove 21 a facing each other along the depth direction thereof. Moreover, the front-end | tip part of the hooking plate 22 is bent inward, and the hooking piece 22a is formed in the said bending part. As shown in FIGS. 4 and 5, the outlet C is attached to the outlet support portion 17. The outlet C is prevented from moving in the vertical direction by being sandwiched between the pair of support plates 20 and 21. Further, the stoppers 19 provided at both ends in the left-right direction of the outlet C enter the notch 20a of the support plate 20 and the groove 21a of the support plate 21, thereby preventing the outlet C from moving in the left-right direction. Is done. Furthermore, the hook piece 22a provided at the tip of the hook portion 22 is hooked on the back surface portion of the outlet C, thereby preventing the outlet C from moving in the depth direction. As a result, the outlet C attached to the outlet support part 17 is held in an immovable state in any direction.

  Next, the decorative cover 23 will be described. As shown in FIG. 1, after the gas leak alarm G is attached to the attachment plate P, a frame-shaped decorative cover 23 is attached. The decorative cover 23 is provided with an insertion hole 23a for inserting the alarm main body 8 of the gas leak alarm G. The decorative cover 23 fitted into the alarm main body 8 is attached by means not shown. It is fixed to the plate P. Thereby, the head of each screw 7 which fixes the mounting plate P is covered, and the aesthetics become favorable.

  The operation when the gas leak alarm G of this embodiment is installed will be described. As shown in FIGS. 1 and 3A, the switch box S is embedded in the mounting hole 1 formed at a predetermined position on the wall W. The power cable 3 wired in the wall W is inserted into the through hole 2a on one side of the ceiling wall 2 of the switch box S and connected to the outlet C. Similarly, the signal cable 4 is inserted into the through hole 2 a on the other side of the ceiling wall 2 of the switch box S and connected to the gas leak alarm G.

  Subsequently, the mounting plate P is fixed to the switch box S. At this time, the outlet C is sandwiched between the pair of support plates 20 and 21 of the outlet support portion 17 provided on the mounting plate P, and is also locked by the hooking piece 22a of the hooking plate 22 so that it cannot move. . Thereby, there is no possibility that the outlet C may be shifted or disconnected due to an earthquake or the like. The mounting plate P is fixed to the switch box S by screwing screws 7 inserted into the screw holes 6b of the mounting plate body 6 into the corresponding screw mounting portions 5 of the switch box S.

  Next, the gas leak alarm G is attached to the mounting plate P. The power plug 10 extended from the alarm main body 8 of the gas leak alarm G is disposed in the switch box S through the insertion hole 6a of the mounting plate main body 6, and a pair of insertion holes 18a of the outlet C. Plugged into. Subsequently, the alarm main body 8 of the gas leak alarm G is inserted into the insertion hole 6 a of the mounting plate main body 6. When the alarm main body 8 of the gas leak alarm G is pushed in along the depth direction, the ceiling wall 11 and the bottom wall of the alarm main body 8 expand while elastically deforming the pair of locking portions 13. Let it open. And when those groove parts 11a reach the part of the locking piece 13b of a pair of locking part 13, a pair of locking part 13 will be elastically restored, and each locking piece 13b will be the ceiling wall part 11 and bottom It enters the groove 11a of the wall. Thereby, a pair of latching | locking part 13 and the groove part 11a of the alarm device main-body part 8 of the gas leak alarm G are mutually latched, and the gas leak alarm G is hold | maintained in the retaining state.

  Finally, the decorative cover 23 is fitted into the alarm main body 8 of the gas leak alarm G and is fixed to the mounting plate P by means not shown. Thereby, since the head of each screw 7 is covered and is not visually recognized from the outside, the beauty is improved.

  When removing the gas leak alarm G at the time of replacement, the decorative cover 23 is removed. Subsequently, a tool such as a screwdriver is inserted into the gap 16 formed between each locking portion 13 and the alarm main body 8 of the gas leak alarm G, and either locking portion 13 is moved upward or downward. Push out. Thereby, the latching state of a pair of latching | locking part 13 and the alarm device main-body part 8 is cancelled | released, and the gas leak alarm G can be pulled out and removed. Then, the power plug 10 is removed from the outlet C. For this reason, it is easy to remove the gas leak alarm G. Further, since the outlet C is mounted on the outlet support portion 17 of the mounting plate P so as not to move, the power plug 10 can be easily inserted and removed, and no extra force is applied to the outlet C.

  In the gas leak alarm G mounting structure according to the present invention, the cable 9 and the power plug 11 extending from the alarm main body 8 of the gas leak alarm G are both disposed in the switch box S and externally provided. There is no exposure. For this reason, the aesthetic appearance is good and there is no fear of catching the cable 9. Moreover, since a normal gas leak alarm device G can be used, even if it must be replaced after a certain period of time, it is replaced with a general-purpose gas leak alarm device G as it is. Just do it.

It is a disassembled perspective view which shows the attachment structure of the gas leak alarm device G of a present Example. 2 is a front view of a gas leak alarm G attached to a wall W. FIG. (A) is the sectional view on the AA line of FIG. 2, (b) is an enlarged view of the B section. (A) is the perspective view seen from the front side of the mounting plate P of a present Example, (b) is the perspective view similarly seen from the back side. It is the perspective view which looked at the mounting plate P to which the outlet C was attached from another direction on the back side.

Explanation of symbols

C: Outlet
G: Gas leak alarm
P: Mounting plate
S: Switch box
W: Wall (mounting surface)
1: Mounting hole
3: Power cable (wiring)
4: Signal cable (wiring)
8: Alarm main unit (gas leak alarm main unit)
9: Cable
10: Power plug
13: Locking part (alarm support part)

Claims (5)

A gas leak alarm mounting structure for mounting a gas leak alarm with a power plug extending through a cable to a mounting surface via a mounting plate,
The mounting plate is frame-shaped, enters the mounting hole formed in the mounted surface, and an outlet supporting unit that supports the outlet connected to the wiring in the mounted surface;
An alarm support part for supporting the main part of the gas leak alarm,
The main part of the gas leak alarm is supported by the alarm support part of the mounting plate,
The gas leak alarm mounting structure is characterized in that the power plug of the gas leak alarm is inserted into an outlet of an outlet support portion disposed in an attachment hole portion of the attached surface.   2. The gas leak alarm mounting structure according to claim 1, wherein a switch box is embedded in a mounting hole portion of the mounted surface, and the mounting plate is fixed to the switch box.   The alarm device support portion includes a locking portion that protrudes from a joint surface of the mounting plate with a mounted surface and that locks the locked portion provided in the main body of the gas leak alarm device. The mounting structure for a gas leak alarm according to claim 1 or 2.   4. The gas leak alarm mounting structure according to claim 3, wherein the alarm device support portion is made of an elastically deformable resin material. In order to attach a gas leak alarm with a power plug extending through a cable to a mounting surface, a frame-shaped gas leak alarm interposed between the gas leak alarm and the mounting surface A mounting plate,
An outlet support section for supporting an outlet connected to the mounted surface wiring;
An alarm support unit that supports the main body of the gas leak alarm;
A mounting plate for a gas leak alarm, comprising:

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