JPH0310221Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a human body detection device for detecting a human body using a urinal and automatically flushing water.

[Conventional technology]

2. Description of the Related Art An automatic urinal flushing device is known that uses a photoelectric device to sense the presence of a person using the urinal and automatically flushes flushing water each time the urinal is used.

Such a detection device for a urinal cleaning device includes a light emitting element, a light receiving element, and a circuit (printed wiring board) to which each element is connected. Usually, this circuit board is housed in a case, and each element is installed on the front side of the case. The urinal is then installed so as to be embedded in the wall above the urinal.

Therefore, in order to detect the human body regardless of the height of the urinal user, each element is sometimes mounted so as to face diagonally downward. As shown schematically in FIG. 2, when such an element is mounted diagonally,
A downwardly inclined surface 14 is formed in the downwardly inclined surface 14, and a window hole 16 is opened in this downwardly inclined surface 14.
It is known that the element 18 is installed on the back side of the window so as to face the window hole 166 (for example, the
45355).

[Problem that the invention attempts to solve]

As shown in FIG.
It is installed by being inserted into a recessed hole 22 drilled at 0, and the front part 12 is installed so as to protrude from the wall surface 20. Therefore, there are problems such as dust easily adhering to the protruding front part, difficulty in cleaning the wall surface, and unsightly appearance due to protrusion from the wall surface.

[Means for solving problems]

The human body detection device for a urinal cleaning device of the present invention includes a box-shaped casing in which a circuit is housed, and a front panel that is attached to the opening in a non-protruding manner. In this front panel, an element installation hole is formed diagonally upward from the front side to the back side, and a human body detection element is arranged in this element installation hole.

[Effect]

In the present invention, the front panel can be mounted without protruding from the wall surface. Therefore, there is no unnecessary protrusion, and the design of the wall surface is improved, and it is also possible to prevent dust from adhering to the wall surface and to make cleaning the wall surface easier.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a longitudinal cross-sectional view showing a state in which a human body detection device for a urinal cleaning device according to an embodiment of the present invention is installed in a recessed hole 22 in a wall surface 20, and FIG. 3 is an assembled configuration of the main parts of the human body detection device. 4 and 5 are a perspective view and a front view of the components of the human body detection device according to the embodiment. As shown in the figure, a box 24 having a size substantially matching that of the recessed hole 22 is inserted into the wall surface 20 and the recessed hole 22, and is fixed with an anchor bolt 26. The front side of the box 24 is bent into an L-shape to form a plate portion 28, and the human body detection device 3 according to the embodiment is attached to the plate portion 28.
0 is attached.

The human body detection device 30 includes a casing 32 having an open front, a front panel 34 attached to the opening of the casing 32 (the casing 32 and the front panel 34 constitute a housing), a circuit board 36, 38 and a light emitting element 40 and a light receiving element 42 installed on the circuit board 36.

As shown in FIGS. 3 and 4, the front panel 34 has a plurality of element installation holes 44 that face upward from the front side to the back side, and in this embodiment, these element installation holes A recess 46 at the top of 44
is formed, and two through holes 48 are opened in the downwardly inclined surface 46a of this recess 46. Front panel 34
A thick plate-like portion 50 is formed to protrude upward from the back side, and the element installation hole 44 passes through this thick plate-like portion 50. Note that screw holes 52 are bored on both left and right sides of the thick plate-like portion 50.

A cylindrical protrusion 54 is integrally provided on the back side of the inclined surface 46a of the recess 46, and a screw hole 56 is bored at the tip of the protrusion 54.

The circuit board 36 includes a light emitting element 40 and a light receiving element 4.
The circuit board 36 is fixed to the thick plate-like part 50 by positioning the circuit board 36 so that each of the elements 40 and 42 is inserted into the element installation hole 44.
and mounted on the cylindrical convex portion 54. This attachment is performed using screws 58 that are screwed into the screw holes 52 and 56.

A variable resistor 60 for adjusting cleaning time and a variable resistor 62 for adjusting detection distance are fixed to the circuit board 36, and each variable resistor 60, 62 is connected to a through hole in the downwardly inclined surface 46a of the recess It is installed so that it faces the back side of 48. Therefore, the resistance of the variable resistors 60 and 62 can be adjusted through the window hole 48.

A circuit board 38 is fixed to the inner part of the casing 32, and the circuit boards 36 and 38 are connected to each other by a lead wire 64. Note that the circuit board 36 is mainly used to sense the human body, and the circuit board 38 is used to output a signal for controlling the outflow and stop of the cleaning water based on the sensing signal.

Thus, small holes 66 and 68 are formed at diagonal positions in the upper and lower parts of the front panel 34, and the front panel 34 and the casing 32 are connected by screws 70 inserted into the small holes 66 and 68. Concatenated. The integrated casing 32 and front panel 34 are connected to the plate portion 28 via the frame 72.
is fixed to. The frame 72 is a rectangular frame body, and has screw holes 7 on the upper and lower sides.
4 and 76 are bored, and the connected body of the casing 32 and the front panel 34 is fixed to the frame 72 by screws 78 inserted from the flange portion 32a side of the casing 32.

The frame to which the casing 32 and the front panel 34 are fixed is inserted into the recess 2 from the tail end of the casing 32.
2 and the flange portion 72 of the frame 72
a and the plate portion 28, and the frame 72
The frame 72 and the box 24 are connected by a bolt 77 inserted from the front surface side. This fixes the connected body of the casing 32, front panel 34, and frame 72 to the box 24. Note that a cover 78 shown in FIG. 5 is attached to the front side of the frame 72. This cover 78 covers the element 4
A window portion 80 is formed to allow light to pass in and out of the windows 0 and 42.

In the human body detection device according to the embodiment configured as described above, the front panel 34 does not protrude from the wall surface 20, and the wall surface 20 has no unnecessary protrusion. Therefore, the appearance is improved and the design is improved, and there is no dust adhering to the protrusion, and there is no problem in cleaning the wall surface.

In this embodiment, since a through hole 48 is provided in the front panel 34, the resistance of the variable resistors 60 and 62 can be adjusted by removing the cover 78 and inserting a screwdriver or the like through the through hole 48. can. Incidentally, if a rubber cap or the like is attached to the through hole 48, erroneous operation of the variable resistors 60 and 62 can be prevented.

In the present invention, various light emitting elements such as a light emitting diode can be used as the light emitting element, and various light receiving elements such as a phototransistor can be used as the light receiving element.

〔effect〕

As detailed above, the human body detection device for a urinal cleaning device of the present invention can be installed in a non-protruding state from the wall surface, has a significantly improved design, and is free from dust adhesion to the protruding portion. There is no fear of hindrance to wall cleaning.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional view showing a state in which a human body detection device for a urinal cleaning device according to an embodiment of the present invention is attached to a wall, Fig. 2 is a longitudinal cross-sectional view showing a conventional human body detection device, and Fig. 3 is a vertical cross-sectional view showing a conventional human body detection device. FIG. 4 is a rear view of the front panel 34, and FIG. 5 is a front view of the cover 78. 20... Wall surface, 22... Recess, 32... Casing, 34... Front panel, 36, 38... Circuit board, 40... Light emitting element, 42... Light receiving element, 4
6... Recessed portion, 46a... Inclined surface, 48... Through hole,
50... Thick plate-like portion, 60, 62... Variable resistor.

Claims (1)

[Claims for Utility Model Registration] (1) A light-emitting element and a light-receiving element are arranged on the front part of the housing, and a circuit for outputting a cleaning water outflow signal based on the human body detection signal of the light-receiving element is installed inside the housing. In a human body detection device for a urinal cleaning device that has been delivered and installed in A human body detection device for a urinal cleaning device, characterized in that an element installation hole is formed diagonally upward from the front surface side to the back side of the front panel, and each of the elements is arranged in the element installation hole. (2) The circuit has a variable resistor for adjusting the cleaning time and a variable resistor for adjusting the detection distance, and these variable resistors are arranged close to the back side of the front panel, and the front panel has a variable resistor for adjusting the detection distance. A human body detection device for a urinal cleaning device according to claim 1, characterized in that a through hole for adjusting a resistor is provided.