JPH0720505Y2 - Damper unit for air conditioner ventilation duct - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a damper unit for a ventilation duct of an air conditioner.

[Conventional technology]

2. Description of the Related Art In an air conditioner that blows air through a duct, a damper is provided in the duct to adjust the amount of air evenly distributed to each duct system or to shut off the amount of air, thereby adjusting the amount of blown air.

This damper fixes the damper to a shaft that penetrates into the duct as shown in FIGS. 3 to 5, and opens and closes the damper by rotating this shaft from outside the duct. For this purpose, the worm gear is used to rotate the damper and fix it at a predetermined position, or fix it with a thumbscrew or the like.

[Problems to be solved by the device]

The method of using a worm gear or a thumbscrew for rotating / fixing the damper requires a large number of parts and requires a lot of labor for assembling.

An object of the present invention is to provide a damper unit for a ventilation duct of an air conditioner that can be easily assembled with a reduced number of parts and that can be easily installed and operated for opening and closing angles of the damper.

[Means for Solving the Problems]

In order to achieve the above object, a damper unit for a blower duct of an air conditioner of the present invention has a short tubular body having sockets for connecting to the blower duct at both ends, and a short tubular body having a U-shaped tip. A shaft that penetrates the through hole formed on the peripheral surface of the body and has the other end fitted into a recess formed on the inner peripheral surface of the short tubular body, a damper fixed to the shaft with a screw, and a short shaft inserted through the shaft. Consists of an inner peripheral surface of a cylindrical body and a leaf spring interposed between dampers, and the tip of a U-shaped shaft is selectively fitted into a plurality of recesses for stoppers formed on the outer peripheral surface of a short cylindrical body. The main point is that they are locked.

[Action]

Since the air duct duct damper unit of the present invention has sockets formed at both ends of the short tubular body, no special tool is required to connect to the air duct.

The opening / closing angle of the damper can be operated by selectively fitting and locking the tip of the U-shaped shaft into a plurality of stopper recesses formed on the outer peripheral surface of the short tubular body. You can, and you don't need any special tools.

Further, the air duct duct damper unit has a small number of parts, and is assembled by fixing the damper to the shaft with screws with a leaf spring interposed between the inner peripheral surface of the short tubular body and the damper. .

〔Example〕

Hereinafter, a damper unit for a ventilation duct of an air conditioner according to the present invention will be described with reference to the illustrated embodiment.

In the figure, reference numeral 1 denotes a short tubular body which constitutes the main body of the blower air outlet duct, and has mating sockets 11 and 12 for connecting to the blower outlet 2, the blower duct 3 and the like at both ends thereof.

A disk-shaped damper 4 having a size capable of closing the inside of the short tubular body 1 is arranged in the center of the short tubular body 1. In this damper 4, a tip 5a is formed in a U-shape, a through hole 1b formed in the peripheral surface of the short tubular body 1 is penetrated, and the other end 5b is formed in an inner peripheral surface of the short tubular body 1 indentation 1a. It is fixed to the shaft 5 fitted into the shaft with screws 7. As a result, the damper 4 is supported by the short tubular body 1 so as to be rotatable about the shaft 5.

Further, a leaf spring 6 bent in a mountain shape is inserted into the shaft 5 so as to be interposed between the inner peripheral surface of the short tubular body 1 and the damper 4, and the urging force of the leaf spring 6 is always applied to the damper 4. The damper 4 together with the shaft 5 is pushed toward the recess 1a.

The tip 5a of the U-shaped shaft 5 is selectively fitted and locked into a plurality of stopper recesses 1c formed on the outer peripheral surface of the short tubular body 1.

The stopper recess 1c is arranged on an arcuate path around which the tip 5a of the shaft 5 revolves around the through hole 1b formed in the peripheral surface of the tubular body 1, and is fitted into the stopper recess 1c. The tip 5a of the shaft 5 is held by the biasing force of the leaf spring 6.

To operate the opening / closing angle of the damper 4 of the damper unit for the air duct, pull the tip 5a of the shaft 5 in a direction away from the stopper recess 1c against the biasing force of the leaf spring 6 to compress the leaf spring 6 into a flat shape. The tip 5a of the shaft 5 into the recess 1c for the stopper.
Then, the tip 5a of the shaft 5 is rotated by a required angle so that the opening / closing angle of the damper 4 becomes a desired angle.

When the pulling force of the shaft 5 is released in this state, the tip 5a of the shaft 5 is fitted and locked in one of the stopper recesses 1c by the biasing force of the leaf spring 6, and the damper 4 is fixed at a desired opening / closing angle. And it is prevented from turning delusionally.

The damper unit for the air duct is assembled by fixing the damper 4 to the shaft 5 with the screw 7 with the plate spring 6 interposed between the inner peripheral surface of the short tubular body 1 and the damper 4.

[Effect of device]

According to the damper unit for the air duct of the air conditioner of the present invention, since the socket is formed at both ends of the short tubular body, no special tool is required to connect to the air duct.
The opening / closing angle of the damper can be operated by selectively fitting and locking the tip of the U-shaped shaft into a plurality of stopper recesses formed on the outer peripheral surface of the short tubular body. You can, and you don't need any special tools. Therefore, it is possible to easily install the damper for the air duct and operate the opening / closing angle of the damper. Further, the air duct duct damper unit has a small number of parts, and the assembly may be performed by fixing the damper to the shaft with a screw with a leaf spring interposed between the inner peripheral surface of the short tubular body and the damper. Can be easily assembled.

[Brief description of drawings]

FIG. 1 is a sectional view of a damper unit for a ventilation duct of an air conditioner of the present invention, FIG. 2 is a front view thereof, FIGS. 3, 4, and 5 are views showing known examples, and FIG. 6 is a book. It is a figure which shows the usage example of the damper unit for ventilation ducts of an air conditioner of the invention. 1 is a short tubular body, 1a is a hollow, 1b is a through hole, 1c is a recess for a stopper, 4 is a damper, 5 is a shaft, 6 is a leaf spring, 7 is a screw, 11 and 12 are sockets.

Claims (1)

[Scope of utility model registration request] 1. A short cylindrical body (1) having sockets (11, 12) for connecting to a ventilation duct at both ends, and a tip (5a).
A recess formed by forming a U-shape and penetrating the through hole (1b) formed on the peripheral surface of the short tubular body (1) and forming the other end (5b) on the inner peripheral surface of the short tubular body (1). The shaft (5) inserted into (1a), the damper (4) fixed to the shaft (5) with screws (7), and the inner peripheral surface of the short tubular body (1) inserted through the shaft (5). And a spring (6) interposed between the damper (4), and a plurality of stoppers in which the tip (5a) of the U-shaped shaft (5) is formed on the outer peripheral surface of the short tubular body (1). A damper unit for a blower duct of an air conditioner, which is selectively fitted and locked in the recess (1c).