JP2007102555A - Waterproof structure for disaster prevention and security equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a waterproof structure for disaster prevention and security equipment, capable of keeping waterproofing property even in case of attachment mistake or deterioration of a packing. <P>SOLUTION: This structure comprises an equipment body 20 for storing a disaster prevention or security circuit, a cover body 40 for covering at least a part of the equipment body 20, and a plurality of waterproof ribs 23-25 integrally protrusively provided from one of the equipment body 20 or the cover body 40 to the other and abutting on the opposed surface of the equipment body 20 or the cover body 40 so as to be substantially orthogonal thereto. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disaster prevention and security device for performing abnormality detection and alarm in a monitoring area, and more particularly, to a waterproof structure of a disaster prevention and security device for preventing rainwater and the like from entering the inside of the disaster prevention and security device.

  Conventionally, various disaster prevention and security devices have been proposed for detecting the presence or absence of an abnormality in a monitoring area and for alarming the outside when an abnormality is detected. Such disaster prevention and crime prevention devices are generally configured to include a device main body fixed to the installation surface and a cover body that substantially covers the device main body from the outer surface. Among these, the device main body is provided with a receiving unit that receives the presence or absence of abnormality in the monitoring area by wire or wireless, and an indicator lamp or buzzer that issues an alarm when the receiving unit receives an abnormality. ing. When the reception unit receives a notification that an abnormality has occurred in the monitoring area, an alarm is output using an indicator lamp or buzzer.

  One type of such disaster prevention and security equipment is an outdoor alarm device (display device) that is installed on an outdoor wall surface of a general building, etc., and displays that fact when a fire or intruder is detected inside the building. ) In order to prevent the rainwater and the like from entering the inside of the alarm device in order to maintain the function of the alarm device for outdoor use, even when the alarm device is exposed to the rainwater. A waterproof structure is provided. Conventionally, this waterproof structure is specifically configured by providing a waterproof packing at a joint portion between the device main body and the cover body. For example, Japanese Patent Laid-Open No. 7-146990 discloses that packing is fixed to both sides and an upper edge of a case body (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 7-146990

  Such a conventional waterproof structure has been sufficient to satisfy the JIS standard protection class 4 (splash-proof type: not adversely affected by water splash from any direction). However, there are cases where it is desired to satisfy the above 6 grades (water resistant type: water does not enter inside even if it receives a direct jet of water from any direction). It was not necessarily enough.

  In particular, in a waterproof structure that relies solely on packing as in the past, when the packing is attached to the case body, twisting or the like occurs or the packing deteriorates after long-term use. There was a gap between them, and rainwater or the like could enter the inside of the disaster prevention crime prevention device through this gap, and there was a possibility that the waterproofness was lowered.

  This invention is made in view of the above, Comprising: It aims at providing the waterproof structure of the disaster prevention crime prevention equipment which can maintain waterproofness even when the attachment mistake and deterioration of packing arise. .

  In order to solve the above-described problems and achieve the object, the waterproof structure for a disaster prevention crime prevention device according to claim 1 includes a device main body that accommodates a disaster prevention or crime prevention circuit, and at least a part of the device main body. A cover body and a plurality of waterproof members that are integrally protruded from one side of the device body or the cover body toward the other, and that are in contact with the opposing surfaces of the device body or the cover body so as to be substantially orthogonal to each other And a wall.

  Moreover, the waterproof structure of the disaster prevention crime prevention device according to claim 2 is the waterproof structure of the disaster prevention crime prevention device according to claim 1, wherein the plurality of waterproof walls or between the plurality of waterproof walls and the device main body. Alternatively, a mounting space for mounting an elastic member for closing a gap between the device main body and the cover body is formed between the cover body and the cover body.

  Moreover, the waterproof structure of the disaster prevention crime prevention device according to claim 3 is the waterproof structure of the disaster prevention crime prevention device according to claim 1 or 2, wherein the space between the plurality of waterproof walls is the device main body or the The water drainage path is continuous from the upper part to the lower part of the cover body.

  Moreover, the waterproof structure of the disaster prevention crime prevention device according to claim 4 is the waterproof structure of the disaster prevention crime prevention device according to any one of claims 1 to 3, wherein the rising heights of the plurality of waterproof walls are The apparatus is characterized in that it is sequentially increased along the joining direction of the device main body and the cover body.

  Moreover, the waterproof structure of the disaster prevention crime prevention device according to claim 5 is the waterproof structure of the disaster prevention crime prevention device according to any one of claims 1 to 4 along a direction substantially orthogonal to a plurality of waterproof walls. And a connecting wall that connects the outer surfaces of the plurality of waterproof walls to each other.

  Moreover, the waterproof structure of the disaster prevention crime prevention device according to claim 6 is the waterproof structure of the disaster prevention crime prevention device according to any one of claims 1 to 5, wherein the disaster prevention crime prevention device is attached to a predetermined first mounting direction and A wiring opening for drawing a predetermined wiring is formed in a lower part of the plurality of waterproof walls in a state of being arranged in a second mounting direction substantially orthogonal to the first mounting direction.

  According to this invention, it is possible to construct a waterproof structure for disaster prevention and crime prevention equipment with a waterproof wall integrally formed with the apparatus main body or cover body, and it is said that only the problem of mounting mistakes and the waterproof part are deteriorated like waterproof packing. The problem can be solved and the waterproofness can be maintained stably for a long time. In particular, since multiple waterproof walls are arranged side by side, even if rainwater or the like enters beyond one waterproof wall, it can be blocked by the next waterproof wall, improving the waterproofing effect of disaster prevention crime prevention equipment Can be made.

  Further, according to the present invention, since the mounting space portion of the elastic member is formed by the waterproof wall, it is not necessary to provide a special means for forming the mounting space portion, and the disaster prevention and crime prevention equipment is further simplified. Can be configured.

  Moreover, according to this invention, since the drainage path was formed between the waterproof walls, the drainage effect can be enhanced by this drainage path, and rainwater or the like can be prevented from reaching the inside of the apparatus main body.

  In addition, according to the present invention, when the cover body is attached to the apparatus main body, the cover body is attached to the apparatus main body while being gradually spread along the outer surface of the waterproof wall, and the cover body is attached more smoothly, The mutual adhesion between the waterproof wall and the cover body can be secured.

  Further, according to the present invention, when the cover body is attached to the apparatus main body, the cover body reaches the next waterproof wall while being gradually expanded along the outer surface of the connecting wall, so that the cover body can be attached more smoothly. .

  In addition, according to the present invention, regardless of the mounting direction of the disaster prevention crime prevention device, the wiring opening is always located below the device main body, and rainwater or the like enters the inside of the device main body through the wiring opening. Can be most effectively prevented.

  Embodiments of a waterproof structure for disaster prevention and crime prevention equipment according to the present invention will be described below in detail with reference to the accompanying drawings. [I] First, the basic concept of the embodiment will be described, then [II] the specific contents of the embodiment will be described, and [III] Finally, modifications to the embodiment will be described. However, the present invention is not limited by this embodiment.

[I] Basic Concept of Embodiment First, the basic concept of the embodiment will be described. The disaster prevention crime prevention device according to the present embodiment is a disaster prevention crime prevention device that is installed on an arbitrary installation surface and performs a predetermined function for disaster prevention or crime prevention. As an installation surface, an outdoor wall surface will be described below as an example. However, the installation surface is not limited to an outdoor surface or a wall surface, and can be attached to an arbitrary installation surface. The specific contents of the basic disaster prevention function or fire prevention function of the disaster prevention and security device are arbitrary, and the disaster prevention and security device includes, for example, a flame detector, a human body sensor, a human body light, a security camera, and the like. In the following description, a case where the disaster prevention and security device is an outdoor alarm device will be described.

  One of the features of the waterproof structure of this disaster prevention and crime prevention device is that a waterproof wall is provided between the device main body that houses the circuit for disaster prevention or crime prevention and the cover that covers at least a part of this device main body. There is in point. This waterproof wall is provided in place of the conventional waterproof packing or in addition to the conventional waterproof packing, and is provided in a direction substantially orthogonal to the water intrusion direction. With such a structure, the waterproof wall blocks the gap between the device main body and the cover body, thereby improving the waterproof property of the disaster prevention and security device and ensuring the water resistance of about JIS6 grade. In addition, since this waterproof wall is resin-molded integrally with the device main body and cover body, it is difficult to cause mounting errors and deterioration like waterproof packing, so that high waterproofness can be maintained regardless of the state of waterproof packing. .

[II] Specific Contents of Embodiment Next, specific contents of the embodiment will be described. Here, after describing the outline of the configuration of the alarm device, the details of the waterproof structure will be described. 1 is an overall perspective view of the alarm device, and FIG. 2 is an exploded perspective view of the alarm device of FIG. As shown in each of these drawings, the alarm device 1 is generally configured to include a mounting base 10, a device main body 20, a circuit board 30, and a cover 40. In the present embodiment, “front” and “front” are directions from the device main body 20 to the cover 40, and “rear” and “rear” are directions from the cover 40 to the device main body 20. It shall be the direction.

(Configuration of alarm device 1-mounting base 10)
Among these, the attachment base 10 is attachment means for fixing the alarm device 1 to a predetermined installation surface such as a wall surface (not shown), and is formed in a substantially rectangular plate shape as a whole. FIG. 3 shows an enlarged perspective view of the mounting base 10. The mounting base 10 is formed with two through screw holes 11, 12, one concave screw hole 13, and four locking pieces 14-17. The screw hole 11 is formed in a so-called dharma shape. As shown in FIG. 2, by inserting the attachment screw 2 a through the screw hole 11, the attachment base 10 can be temporarily fixed to the installation surface. The screw hole 12 is formed in a long hole shape along an arc centered on the screw hole 11, and rotates around the attachment screw 2 a inserted through the screw hole 11 by the attachment base 10 temporarily fixed to the installation surface. By moving it, the attachment position can be finely adjusted. When the fine adjustment is finished, the mounting base 2 can be fixed to the installation surface at a desired angle by screwing the mounting screw 2b into the installation surface through the screw hole 12. The screw hole of the concave shape 13 is a hole for screwing the mounting screw 2c inserted through the cover 40 or the device main body 20 from the front side of the cover 40, and on the inner peripheral surface thereof, there is a thread groove of the mounting screw 2c. A screw groove (not shown) is formed to fit in.

  The upper locking pieces 14 to 16 of the mounting base 10 are formed so as to protrude toward the device main body 20, and are inserted into mounting holes 21 a to 21 c (described later) formed in the device main body 20, The stop pieces 14 and 16 are locked to the apparatus main body 20, and the locking piece 15 is locked to the inner upper surface of the cover 40. The locking piece 17 at the bottom of the mounting base 10 is formed so as to protrude toward the device main body 20, and is inserted into a mounting hole 21 d to be described later formed in the device main body 20. To do. By such locking, the apparatus main body 20 and the cover 40 are temporarily fixed to the mounting base 10.

(Configuration of alarm device 1-device body 20)
Moreover, in FIG. 2, the apparatus main body 20 accommodates the circuit for disaster prevention or crime prevention, and is formed by integrally forming a base portion 21 and a rising portion 22. 4 is an enlarged perspective view of the device body 20 with the circuit board 30 attached, FIG. 5 is a plan view of the device body 20 of FIG. 4, and FIG. 6 is a side view of the device body 20 of FIG. The base portion 21 is a rectangular plate-like body having a width and height substantially corresponding to the mounting base 10, and insertion holes 21 a to 21 through which the locking pieces 14 to 17 of the mounting base 10 are inserted in the upper part or the lower part. 21d is formed. The rising portion 22 corresponds to the waterproof wall in the claims, and is formed so as to rise from the base portion 21 toward the cover 40, and the front shape thereof is slightly smaller than the base portion 21. And a rounded square shape having a height. As shown in FIG. 2, a space 22a for accommodating the circuit board 30 is formed in the rising portion 22, and a plurality of holes for screwing the circuit board 30 are formed in the space 22a. The screwing portion 22b is formed.

  Here, as shown in FIGS. 4 to 6, a plurality of waterproof ribs 23 to 25 are integrally formed on the peripheral surface of the rising portion 22. Each of the plurality of waterproof ribs 23 to 25 is a rail body having a substantially rectangular cross section projecting from the rising portion 22 toward the inner surface of the cover 40, and the entire circumference of the peripheral surface of the rising portion 22. (Except for a wiring opening 29 described later). The plurality of waterproof ribs 23 to 25 are arranged at a predetermined interval from each other, and the waterproof rib 25 located closest to the base portion 21 is spaced from the base portion 21 by a predetermined interval. Is arranged. A waterproof packing (corresponding to an elastic member in claims) 26 is detachably fitted between the waterproof rib 25 and the base portion 21. Details of the functions of the waterproof ribs 23 to 25 and the waterproof packing 26 will be described later.

(Configuration of alarm device 1-circuit board 30)
In FIG. 2, a circuit board 30 is a board on which the electrical components of the alarm device 1 are mounted. The circuit board 30 is formed with a width and height substantially corresponding to the space portion 22a inside the rising portion 22 of the device main body 20, and is accommodated in the space portion 22a. Screw holes 30a and 30b are formed on the upper and lower sides of the circuit board 30 (the screw holes 30b are not shown in FIG. 2), and the mounting screws 2d and 2e are inserted into the screw holes 30a and 30b so as to pass through the device main body 20. The circuit board 30 can be fixed to the device main body 20 by being screwed into the screwing portion 22b. The specific contents of the electrical components mounted on the circuit board 30 are arbitrary, but here, at least when the alarm device 1 receives a predetermined alarm signal, a light emitting LED (indicating that fact) Light Emitting Diode) shall be implemented.

(Configuration of alarm device 1-cover 40)
The cover 40 covers at least a part of the device main body 20, and corresponds to the cover body in the claims. In FIG. 7, the perspective view of the cover 40 seen from the back side is shown. The cover 40 is configured by integrally providing an inner frame 42 inside an outer frame 41. The outer frame 41 is formed to have a substantially covering width and height of the device main body 20 and has a curved surface portion 43 on the front side thereof. The curved surface portion 43 is formed of a transparent or translucent member so that light from the light emitting LED mounted on the circuit board 30 can be transmitted to the outside of the alarm device 1. Further, as shown in FIG. 2, a screw hole 41a is formed in the lower portion of the outer frame 41, and the mounting screw 2c inserted through the screw hole 41a from the front side is connected to the screw hole 21d of the device body 20. The cover 40, the apparatus main body 20, and the cover 40 can be fixed to each other by screwing into the screw holes 13 of the mounting base 10. In addition, the screw hole 41a can be blinded from the front side by detachably locking the blindfold plate 41b to the outer frame 41. On the other hand, as shown in FIG. 7, the inner frame 42 is for accommodating the rising portion 22 and the circuit board 30 of the device main body 20 therein, and the front shape thereof is slightly larger than the rising portion 22. It is a rounded rectangular shape having a width and a height.

(Details of waterproof structure)
Next, details of the waterproof structure will be described. This waterproof structure basically includes a mutual contact structure between the waterproof packing 26 and the cover 40 and a mutual contact structure between the waterproof ribs 23 to 25 of the device main body 20 and the cover 40.

  First, a waterproof structure using the waterproof packing 26 will be described. FIG. 8 shows an enlarged view of the main part of the planar shape of the device main body 20 (for the sake of explanation, the locking pieces 14 to 16 are omitted and the cover 40 is indicated by an imaginary line). The waterproof packing 26 is formed in an annular shape substantially corresponding to the outer shape of the rising portion 22 of the device main body 20, and is integrally provided with a base portion 26 a and a rising portion 26 b and has a substantially L-shaped longitudinal section. To do. Of these, the base portion 26 a is formed with a width that substantially corresponds to the interval between the waterproof rib 25 and the base portion 21, and a thickness that substantially corresponds to the rising height of the waterproof rib 25. And the base portion 21 so as to substantially block these gaps. The rising portion 26 b is formed with a width that is smaller than the distance between the waterproof rib 25 and the base portion 21 and a thickness that protrudes outward from the waterproof rib 25. In the state where the cover 40 is attached to the device main body 20, the back surface of the outer frame 41 contacts the front surface of the base portion 21, and the back surface of the inner frame 42 contacts the front surface of the rising portion 26 b. Intrusion of rainwater or the like between the cover 40 and the cover 40 is prevented. In particular, the waterproof packing 26 is formed of an elastic resin. Even when the cover 40 is deformed by receiving an external force, the waterproof packing 26 is deformed accordingly, and the waterproof structure is maintained.

  Next, a mutual contact structure between the waterproof ribs 23 to 25 of the device main body 20 and the cover 40 will be described. As described above, the inner frame 42 of the cover 40 is formed with a width and height substantially corresponding to the rising portion 22 of the device main body 20, and in a state where the cover 40 is attached to the device main body 20, a plurality of waterproofs are provided. The substantially entire outer peripheral surfaces of the ribs 23 to 25 abut against the inner surface of the inner frame 42. In particular, the rising portion 22 is disposed substantially in parallel with the inner frame 42, and the waterproof ribs 23 to 25 protrude from the rising portion 22 so as to be substantially orthogonal to each other. ˜25 abuts so as to be substantially orthogonal to the inner surface of the inner frame 42 (corresponding to the opposing surface in the claims). As a result, the waterproof ribs 23 to 25 are arranged so as to be substantially orthogonal to the inundation direction α of rainwater or the like between the device main body 20 and the cover 40 body shown in FIG. Can be most effectively prevented.

  Such a waterproofing effect can be obtained to some extent by attaching the waterproof packing 26, but here, since the waterproof ribs 23 to 25 are provided integrally with the device main body 20, there is a mounting error like the waterproof packing 26. And the problem that only the waterproof part deteriorates can be solved, and waterproofness can be stably maintained for a long time. Further, in the present embodiment, a plurality of the waterproof ribs 23 to 25 are arranged side by side, so that even when rainwater or the like intrudes beyond one waterproof rib 25, the waterproof ribs 24 and 23 are used. It is possible to dam up sequentially and improve the waterproof effect.

  Further, the waterproof rib 25 not only functions as a waterproof wall but also forms a mounting space for mounting the waterproof packing 26. That is, by disposing the waterproof rib 25 slightly apart from the base portion 21, a mounting space is formed between the waterproof rib 25 and the base portion 21, and the waterproof packing 26 can be mounted in this space. Since the waterproof packing 26 mounted in this way is restricted from moving in the front-rear direction by the waterproof rib 25, the waterproof packing 26 is maintained at an appropriate position. Moreover, since the mounting space for the waterproof packing 26 can be formed by the waterproof rib 25, it is not necessary to provide a special means for forming the mounting space, and the alarm device 1 can be configured more simply.

  Further, the plurality of waterproof ribs 23 to 25 form a drainage passage 27 for draining rainwater and the like entering the alarm device 1 to the outside. FIG. 9 is a side view of the device main body 20 for conceptually showing the water drainage path 27. That is, a groove-shaped drainage path 27 is formed between the waterproof ribs, and the drainage path 27 is interrupted from the upper part of the device main body 20 to the side part and further to the lower part. It is formed continuously without. Therefore, as shown by the solid line arrow in FIG. 10, even when rainwater or the like gets over the waterproof packing 26 or the waterproof rib 25 for some reason, it flows down to the drainage path 27 before reaching the next waterproof rib 24, The water drainage path 27 is reached to the lower part of the device main body 20. In addition, as shown by a dotted arrow in FIG. 9, a similar drainage path 27 is formed between the waterproof rib 25 and the base portion 21, and rainwater or the like that wraps around the waterproof packing 26. Can be guided to the lower part of the device main body 20 through the drainage path 27. Therefore, the drainage effect can be enhanced by the drainage path 27, and rainwater or the like can be prevented from reaching the inside of the device main body 20.

  Further, the plurality of waterproof ribs 23 to 25 function as guides when the cover 40 is attached to the device main body 20. That is, as shown in FIG. 8, the rising height D1 of the waterproof rib 23 arranged at the most front side, the rising height D2 of the waterproof rib 24 arranged at the center, and the waterproof rib arranged at the most back side. 25 is formed so as to increase sequentially (D1 <D2 <D3), the outer surface of the waterproof rib 25 is located outside the outer surfaces of the other waterproof ribs 23, 24, and the waterproof rib The outer surface of 24 is located outside the outer surface of the waterproof rib 23. For this reason, when attaching the cover 40 to the device main body 20, when the cover 40 is pressed against the device main body 20 along the joining direction, the waterproof rib 23 having the smallest diameter is first inserted into the inner frame 42 of the cover 40, Next, since the waterproof ribs 24 and 25 having slightly larger diameters are sequentially inserted into the inner frame 42, the cover 40 is attached to the device body 20 while being gradually spread along the outer surface of the waterproof rib. Becomes smoother and the mutual adhesion between the waterproof ribs 23 to 25 and the cover 40 can be secured.

  In particular, in order to enhance such a guide function, the waterproof rib 23 and the waterproof 24 are connected to each other by the connecting rib 28. The connecting rib 28 corresponds to the connecting wall in the claims, and is formed along a direction (horizontal direction) substantially orthogonal to the waterproof ribs 23, 24. The rear surface of the waterproof rib 24 is substantially flush with the outer surface of the waterproof rib 24. Therefore, when the cover 40 is attached to the apparatus main body 20, the small-diameter waterproof rib 23 is first inserted into the inner frame 42 of the cover 40, and then the cover 40 is gradually pushed along the outer surface of the connecting rib 28. However, since the next waterproof rib 24 is reached, the cover 40 can be attached more smoothly.

  Finally, a wiring structure for maintaining the waterproof function will be described. 10 is a front view of the device main body 20 in a state where the alarm device 1 is attached along the vertical direction, and FIG. 11 is a front view of the device main body 20 in a state where the alarm device 1 is attached along the horizontal direction. 10 and 11 show the device main body 20 in a simplified manner). As shown in FIGS. 10 and 11, the base portion 21 of the device main body 20 is provided with a wiring opening 29. The wiring opening 29 is a lead-in port for drawing the wiring 3 for receiving an alarm signal from a predetermined external device into the alarm device 1, and by cutting out a part of the rising portion 22. Is formed. Here, as shown in the figure, the wiring opening 29 is provided even when the alarm device 1 is mounted along the vertical direction (corresponding to the first mounting direction in the claims), or the alarm device 1. Are attached along the horizontal direction (corresponding to the second attachment direction in the claims), they are formed at a common position below. Therefore, regardless of the mounting direction of the alarm device 1, the wiring opening 29 is always located below the device main body 20, and it is most likely that rainwater or the like enters the device main body 20 through the wiring opening 29. It can be effectively prevented.

  As described above, according to the present embodiment, by providing the waterproof packing 26, it is possible to solve the problem of mounting mistakes and the problem that only the waterproof portion is deteriorated like the waterproof packing 26, and the waterproof property can be stably and long. You can maintain the period. In particular, since a plurality of waterproof ribs 23 to 25 are arranged side by side, the waterproof effect can be improved. The alarm device 1 in which the waterproof packing 26 is maintained at an appropriate position by the waterproof rib 25 can be configured more simply. By forming the drainage path 27 with the plurality of waterproof ribs 23 to 25, rainwater can be prevented from reaching the circuit board 30. By providing the plurality of waterproof ribs 23 to 25 and the connecting ribs 28, the attachment of the cover 40 becomes smoother and the mutual adhesion between the waterproof ribs 23 to 25 and the cover 40 can be secured. Furthermore, it is possible to most effectively prevent rainwater or the like from entering the inside of the device main body 20 through the wiring opening 29 regardless of the mounting direction of the alarm device 1.

[III] Modifications to Embodiments While the embodiments of the present invention have been described above, specific configurations and means of the present invention are within the scope of the technical idea of the invention described in the claims. Modifications and improvements can be made arbitrarily. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above-described contents, and the present invention solves the problems not described above or has the effects not described above. There are also cases where only some of the described problems are solved or only some of the described effects are achieved. For example, even when only the same level of waterproofness as conventional can be exhibited, as long as the waterproof structure can be constructed with a structure different from the conventional one, or intrusion of rainwater or the like into the alarm device 1 cannot be completely prevented. Even in this case, the problem of the present application has been solved as long as the waterproofness can be improved even slightly.

(About waterproof ribs 23-25)
In the embodiment, the waterproof ribs 23 to 25 are formed on the device main body 20, but the waterproof ribs 23 to 25 may be formed on the inner frame 42 of the cover 40. Even in this case, the waterproof structure can be constructed by projecting toward the outer surface of the device main body 20 and bringing it into contact with the outer surface. Moreover, the waterproof structure may be constructed by forming the waterproof ribs 23 to 25 on both the device main body 20 and the cover 40 and combining them. Alternatively, the outer frame 41 of the cover 40 may be inserted inside the rising portion 22 of the device main body 20, and in this case, the inner surface of the rising portion 22 of the device main body 20 or the outer frame 41 of the cover 40. The waterproof ribs 23 to 25 may be formed on the outer surface. The formation positions of such waterproof ribs 23 to 25 can be appropriately determined in consideration of the ease of die-cutting when forming each component and the influence of resin deformation.

(About waterproof packing 26)
The mounting position of the waterproof packing 26 may be between the waterproof ribs 23 and 25 as well as between the waterproof rib 25 and the base portion 21. Further, the waterproof packing 26 may be attached to the plurality of positions. The waterproof packing 26 may be an elastic member, and its specific material is arbitrary.

(About drainage channel 27)
In order to further enhance the drainage effect of the drainage path 27, for example, a drainage hole may be formed in the lowermost ends of the inner frame 42 and the outer frame 41 of the cover 40. Further, the connecting rib 28 may be provided with a vertical hole, and drainage may be performed through the inside of the connecting rib 28.

  The waterproof structure of the disaster prevention crime prevention device according to the present invention is applied to various disaster prevention crime prevention devices such as alarms and indicators, and can maintain waterproofness even when packing attachment mistakes or deterioration occur, It is useful for enhancing its reliability and durability.

1 is an overall perspective view of an alarm device according to an embodiment of the present invention. It is a disassembled perspective view of the alarm device of FIG. It is an expansion perspective view of an attachment base. It is an expansion perspective view of the apparatus main body in the state which attached the circuit board. It is a top view of the apparatus main body of FIG. It is a side view of the apparatus main body of FIG. It is a perspective view of the cover seen from the back side. It is a principal part enlarged view of the planar shape of an apparatus main body. It is a side view of the apparatus main body for showing a drainage path conceptually. It is a front view of the apparatus main body in the state which attached the alarm device along the perpendicular direction. It is a front view of the apparatus main body in the state which attached the alarm device along the horizontal direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Alarm 2a-2e Mounting screw 3 Wiring 10 Mounting base 11-13, 30a, 30b, 41a Screw hole 14-17 Locking piece 20 Apparatus main body 21, 26a Base part 21a-21d Insertion hole 22, 26b Rising part 22a Space part 22b Screw fixing part 23-25 Waterproof rib 26 Waterproof packing 27 Drain path 28 Connecting rib 29 Wiring opening 30 Circuit board 40 Cover 41 Outer frame 41b Blindfold plate 42 Inner frame 43 Curved surface part

Claims (6)

A device body that houses a circuit for disaster prevention or crime prevention,
A cover body covering at least a part of the device body;
A plurality of waterproof walls that are integrally protruded from one of the device body or the cover body toward the other, and that are in contact with each other so as to be substantially orthogonal to the opposing surfaces of the device body or the cover body;
A waterproof structure for disaster prevention and security equipment, characterized by comprising: An elastic member is installed between the plurality of waterproof walls or between the plurality of waterproof walls and the device main body or the cover body to close a gap between the device main body and the cover body. Forming a mounting space for
The waterproof structure for disaster prevention and crime prevention equipment according to claim 1, wherein: The space between the plurality of waterproof walls is a drainage channel that continues from the upper part to the lower part of the device body or the cover body,
The waterproof structure for disaster prevention and crime prevention equipment according to claim 1 or 2. The rising height of the plurality of waterproof walls is sequentially increased along the joining direction of the device body and the cover body,
The waterproof structure for disaster prevention and crime prevention equipment according to any one of claims 1 to 3. A connecting wall that is formed along a direction substantially orthogonal to the plurality of waterproof walls and that connects the outer surfaces of the plurality of waterproof walls to each other;
The waterproof structure of the disaster prevention crime prevention device according to any one of claims 1 to 4, wherein Wiring for drawing predetermined wiring into the lower portions of the plurality of waterproof walls in a state where the disaster prevention and security device is arranged in a predetermined first mounting direction and a second mounting direction substantially orthogonal to the first mounting direction. Forming an opening for
The waterproof structure for disaster prevention and crime prevention equipment according to any one of claims 1 to 5.

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