JP2530935Y2 - Damper device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to an improvement of a supply / discharge damper device mounted on a ceiling surface.

[Conventional technology]

Conventionally, as this type of damper device, as shown in FIG.
A blade shaft (2) rotatably supported on a center line orthogonal to a direction in which air flows in a cylindrical main body (1) forming an air passage, and a rotary solenoid (3) for rotating the blade shaft. ), Between the drive shaft (4) of the rotary solenoid (3) and the blade shaft (2), the inside of the tip (1) of the drive shaft (4) and the body (1) of the blade shaft (2). Is connected via a bevel gear (5) axially mounted to the end of the shaft. (For example, see Japanese Utility Model Application Laid-Open No. 63-46750).

[Problems to be solved by the invention]

In the conventional damper device as described above, the wall mounting structure is used, and it is difficult to install the duct piping on the ceiling surface, and there is a problem that air flows right below and is locally cold in winter. .

In addition, by providing a rotary solenoid,
There is a problem that power consumption is large and usage cost is high.

This invention was made in order to solve such a problem, and it is easy to install duct pipes etc. when installed on the ceiling surface, air spreads all over without flowing directly underneath, and the attachability of the opening and closing part is improved. It is an object of the present invention to obtain a highly reliable damper device that can easily check the inside of a damper body, has good serviceability, and does not drop an opening / closing unit.

[Means for solving the problem]

The damper device according to the present invention has a duct connection port on the side wall, an opening communicating with the duct connection port is provided on the lower wall surface to form a series of air passages, and provided at the center of the opening. A slide shaft that slides in a vertical direction of an opening thereof by a drive motor in the main body, a slide plate mounted on a lower end surface of the slide shaft with a screw to open and close the opening, and a mounting surface of the slide plate. It has a concave portion provided on the opposite side for accommodating the head of the screw, and a cap portion attached to the opening surface of the concave portion.

Further, the cap portion is in contact with the head of the screw.

Further, a heat insulating member is attached to the side surface of the main body of the slide plate.

[Action]

In the present invention, a duct connection port is provided on a side wall, and an opening communicating with the duct connection port is provided in a lower wall surface, and a series of air passages is provided at the center of the opening of the main body, and the opening is provided. A slide plate is mounted on a lower end surface of a slide shaft that is slid by a drive motor in a vertical direction by a screw, and a concave portion provided on a side opposite to a mounting surface of the slide plate accommodates a screw head, and a cap portion is provided. Since it is attached to the opening surface of the recess, the air flow from the duct is operated by moving the slide plate up and down, so that the head of the screw is covered and the slide plate can be easily removed from the slide shaft. Become.

Further, since the cap portion abuts on the head of the screw, the screw is prevented from loosening.

In addition, since the heat insulating member is attached to the side surface of the main body of the slide plate, heat is not transmitted from the main body side of the slide plate to the back side.

〔Example〕

1 to 4 show an embodiment of the present invention, in which (6) is a ceiling of a house or the like, (7) is a field edge provided on the ceiling, and (8) is a field. A body attached to the rim, having a duct connection port (10) in a side wall (9) and an opening (11) provided in a lower portion to form an air passage (12). (13) is a flange of the main body, and the main body (8) is mounted on the edge (7) by a wood screw (14). (15) is a duct attached to the duct connection port (10), (16) is a terminal box provided in the upper part inside the main body (8), has a quick-connecting terminal (17), and has a terminal cover (18). ).
(19) is a power cord connected to the quick connection terminal (17), which is inputted into the main body (8) through a cord bush (20) provided on the main body (6). (21) is an internal flange provided in the lower part of the main body (8), and (22) is a drive mechanism mounted on the internal flange, and is composed of components mounted on a partition plate described later. The drive mechanism becomes detachable by attachment and detachment, and is connected to and interlocked with a ventilation fan (not shown) or the like. Reference numeral (23) denotes a partition plate serving as a base of the drive mechanism, which seals a gap between the main body (8) and a stopper plate described later, and is mounted on the internal flange (21) by screws (24). (25) is a bearing provided in the center of the partition plate, and communicates with a shaft hole (not shown) formed in the partition plate (23). (26) is a slide shaft which penetrates through the bearing and protrudes downward from the partition plate (23). A wire mounting portion (27) is provided at the upper end, and a screw (28) is screwed into the lower portion. . A pulley (29) is rotatably mounted on a pulley mounting plate (30) sandwiched between the bearing (25) and the partition plate (23), and is attached to a lower side of the slide shaft (26). To position. (31) is a drop-prevention plate provided below the pulley mounting plate.
1) is connected between. A motor mounting plate (33) is screwed to the partition plate (23) and the pulley mounting plate (30). Reference numeral (34) denotes a drive motor provided on the motor mounting plate, which is, for example, a gard motor with low power consumption. The power cord (35) of the drive motor is connected to the quick connection terminal (17) via a connector (36). It is connected to the. (37) is a motor pulley mounted on the rotating shaft (not shown) of the drive motor, and has a convex portion (38) on the outer periphery.
Reference numeral (39) denotes a limit switch mounted on the motor mounting plate (33), which is configured to output a signal for 100 V to a related device (not shown), and is turned on by the protrusion (38).
(40) is a wire, one end of which is connected to the wire mounting portion (27), is engaged with the pulley (29), is stretched, and is wound around the motor pulley (37). Is rotated and rotated to slide the slide shaft (26) downward. (41) is a spring cover which covers the slide shaft (26) from above to prevent adhesion of dust and dirt. (42) is a slide plate attached to the shaft end of the slide shaft (26) with a screw (28), and is formed in a protruding spherical shape that covers the opening (11), and has a concave portion in the center of which the screw (28) fits (43) is formed. Recess (4
3) At the bottom, mounting holes (43a) and (43b) are formed along with an insertion hole for inserting the screw (28). After mounting with the screw (28), the cap is closed by the mounting holes (43a) and (43b). (44) is attached. The cap (44) has a mounting hole (43) on the back of the lid that is continuous with the surface shape of the slide plate (42).
a), (43b), hooked fixed claws (44a) and (44b) with hooks to be inserted and locked.
The recess (43) is closed by inserting the (44b) into the mounting holes (43a) and (43b), and the head of the screw (28) in the recess (43) is pressed against the back surface. Reference numeral (45) denotes a heat insulating material provided inside the slide plate, which is made of, for example, resin and prevents dew condensation on the slide plate (42). A spring (46) is wound between the wire mounting portion (27) of the slide shaft (26) and the bearing (25), and is deformed and compressed by the sliding action of the slide shaft (26). The return force causes the slide shaft (26) to return. (47) is a lower flange having one end fixed to the lower portion of the partition plate (23), and has a bent portion (48) extending downward and the other end bent outward. The slide plate (42) is in contact with the portion.
(49) is a packing attached to the bent portion (48) for preventing air leakage at a contact point between the slide plate (42) and the bent portion (48). A grill mounting plate (50) is screwed to the lower flange (47) and is formed of, for example, an elastic member, and has a bending angle α of about 85 ° to 88 ° at one end as shown in FIG.
Is set to an acute angle. (51) a grill for covering a gap between the ceiling (6) surface and the slide plate (42), which has an opening in the center where the slide plate (42) is inserted; Aesthetically matched to (42), the ceiling (6) was determined by the relationship of the bending angle α of the grill mounting plate (50).
It is pulled to the surface side. (52) is a contact plate between the main body (8) and the ceiling (6) surface, (53) is a ceiling plate, (54) is a body step heat material mounted in the main body (8), and (55) is a clutch coil. , (56) are gear motor switches. (57)
Is a rib protruding from the same end of the grill (51) to prevent airflow from leaking from the grill (51).

In the damper device configured as described above, the damper device is attached to the main body (8) on the ceiling (6) surface at a mounting edge (7).
Team up. Next, the drive mechanism (22) is removed by removing the partition plate (23) from the inner flange (21) in the main body (8), and the main body (8) is attached to the field edge (7) with a wood screw (14). Fix it.
Screw the duct connection port (10) to the main body (8) and connect the duct (15) to the duct connection port (10). After the power cord (19) is connected to the quick-connecting terminal (17) in the terminal box (16) and electric wiring and the like are made, the ceiling (6) surface including the ridge (7) is joined by a member (not shown). Finish. And
Connect the cord (35) of the drive motor (34) to the connector (36) and, while engaging the bore (32) with the inner flange (21), remove the partition plate (23) having the drive mechanism (22) from below. Screw on the inner flange (21). Thereafter, a slide plate (42) is attached to the slide shaft (26) with a screw (28), and a cap (44) is attached to the slide plate (42) so as to cover the screw (28). Next, when power is input to the ventilation fan provided so as to be interlocked, the drive mechanism (22) is also energized, and the drive motor (34) rotates. As a result, the motor pulley (37) rotates to wind up the wire (40), the slide shaft (26) slides downward, and the slide plate (42) is pushed in the opening direction to open. And. Before stopping on the motor pulley (37), the convex portion (38) of the motor pulley (37) presses the limit switch (39), and the limit switch (39) is operated, and a signal of 100 V is transmitted as an external output signal. A lamp (not shown) such as an open indication of the plate (42) can be turned on. When the drive motor (34) is stopped by the geared motor switch (56), the clutch coil (55) is energized,
The motor pulley (37) stops at that position, and the open state of the slide plate (42) is maintained. Furthermore, ventilation fan is OFF
As a result, the power supply to the drive mechanism (22) is also turned off, the clutch is disengaged, the slide shaft (26) returns to its original position by the return force of the spring (46), and the slide plate (42) is closed. Then, the air flow when the slide plate (42) is open does not flow directly below the opening of the grill (51), but flows in a conical generating line in a direction not along the ceiling and spreads over the entire area. Do not focus on people.

[Effect of the invention]

This invention, as invented above, controls the flow of air from the duct by moving the slide plate up and down, so that the head of the screw can be covered and the slide plate can be easily removed from the slide shaft. The inside of the main body can be easily checked, and the maintenance and inspection inside the main body and serviceability can be easily performed. In particular, it is possible to prevent a water drop from a screw head when a cool air is blown, and to obtain a damper device with a clean appearance.

In addition, since the cap portion abuts on the head of the screw to prevent the screw from loosening, a highly reliable damper device that can prevent abnormal noise, dropping, and the like due to the loosening of the screw can be obtained.

In addition, since the heat insulating member is attached to the side surface of the main body of the slide plate, and heat is not transmitted from the main body side of the slide plate to the back side thereof, particularly, high reliability which prevents dew condensation and water droplets on the slide plate when blowing cool air. A damper device is obtained.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view of the main body, FIG. 3 is a sectional view of the driving section, FIG. 4 is a connection diagram of the same, and FIG. FIG. 6 is a sectional view of a mounting plate, and FIG. 6 is a sectional view of a conventional damper device. (8) is a main body, (9) is a side wall, (10) is a duct connection port, (11) is an opening, (26) is a slide shaft, (28) is a screw, (34) is a drive motor, 44) is a cap.

Claims (3)

(57) [Scope of request for utility model registration] 1. A main body having a duct connection port on a side wall and an opening communicating with the duct connection port provided on a lower wall surface to form a series of air passages, and a main body provided at a center of the opening, A slide shaft that slides in the vertical direction of the opening by a drive motor in the inside, a slide plate that is mounted on a lower end surface of the slide shaft with a screw and opens and closes the opening, and a slide plate that is opposite to a mounting surface of the slide plate. A damper device, comprising: a recess provided to receive a head of the screw; and a cap attached to an opening surface of the recess. 2. The damper device according to claim 1, wherein said cap portion abuts on a head of said screw. 3. The damper device according to claim 2, wherein a heat insulating member is attached to the side surface of the main body of the slide plate.