JPH01120408A - Flow direction changing device - Google Patents

Abstract

PURPOSE:To automatically change the flow direction of fluid independently of electric or human power by converting the rotary motion of an impeller into the reciprocatory motion of a control vane. CONSTITUTION:An impeller 1 rotates at the fluid discharge port of a duct or the like under fluid pressure A, and is changed in its rotary direction and decelerated through a gear 2. In addition, a cam mechanism 3 converts rotary motion into reciprocatory motion to drive a control vane 4. Fluid passing through the impeller 1 is thereby changed in its flow direction B with the control vane 4 as occasion demands. Thus the flow direction of discharged fluid can be automatically changed independently of electric or human power by driving the control vane 4 utilizing pressure.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for changing the flow direction of fluid such as wind or water, and in particular, a device for automatically changing the flow direction of fluid without relying on electric power or human power. The present invention relates to a flow direction changing device.

[Prior Art] In conventional flow direction changing devices, control vanes that determine the flow direction of fluid are moved by electric power or human power. In other words, at the outlet for fluids such as wind and water transported by ducts, there are systems that use electric power to drive an electric motor to automatically change the flow, and systems that use manual power to change the flow.

[Problems to be Solved] The conventional flow direction changing device described above has the following problems.

■A device that uses electric power to drive an electric motor to automatically change the fluid requires electric power for each fluid discharge port, and if there are countless discharge ports, the power cost will be enormous.

In a device that is changed manually, once the fluid flow direction is set, the fluid flow direction does not change until the next time the fluid flow direction is reset manually.

The present invention has been made in view of the above problems, and aims to provide a flow direction changing device that automatically changes the flow direction of fluid without relying on electric power or human power.

[Means for Solving Problems] In order to achieve the above object, the flow direction changing device of the present invention includes an impeller installed at a fluid discharge port and rotated by the pressure of the fluid, and an impeller that is installed at a fluid discharge port and rotates by the pressure of the fluid, and a flow direction changing device of the present invention. and a control vane drive mechanism that transmits and decelerates the rotation of the impeller, converts the rotational motion into reciprocating motion, and drives the control vane to change the flow direction of the fluid. The composition is as follows.

[Embodiment] Hereinafter, the present invention will be described in detail based on the drawings. Fig. 1 is a perspective view showing a schematic configuration of a flow direction changing device according to an embodiment of the present invention.

In the figure, l is an impeller rotated by fluid pressure, and is installed near the fluid outlet.

2 is a gear that transmits and decelerates the rotation of the impeller 1; 3 is a cam mechanism that converts the rotational motion of the gear 2 into reciprocating motion; and 4 is a control vane that changes the flow direction.

The gear 2 and the cam mechanism 3 constitute a control vane drive mechanism that drives the control vane 4.

In the above configuration, the impeller 1 rotates upon receiving fluid pressure A at the fluid discharge port of the duct.

Then, the gear 2 changes the direction of rotation and decelerates the rotation. Further, the cam mechanism 3 converts the rotational motion into a reciprocating motion to drive the control blades 4. That is, the angle of the control vane 4 (the angle with respect to the fluid flow direction) is changed as needed.

As a result, the fluid passing through the impeller 1 is transferred to the control vane 4.
Therefore, the flow direction B can be changed at any time.

It should be noted that the present invention is not limited to the above embodiments, but includes various modifications within the scope of the gist. For example, in the above-described embodiment, there is one control vane, but it is also possible to use a plurality of vanes. Further, other forms of the impeller, such as a flow-shaped impeller, can also be used. moreover,
By providing the control vanes in a lattice pattern, the flow direction can be varied in two dimensions.

[Effects of the Invention] As explained above, the present invention utilizes the pressure of the fluid to drive the control vanes at the fluid outlet of a duct, thereby controlling the flow of the fluid to be discharged without relying on electric power or human power. This has the advantage that it is possible to provide a flow direction changing device that can automatically change the direction.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic configuration of a flow direction changing device according to an embodiment of the present invention. l Two impeller 2: Gear 3: Cam mechanism 4: Control vane A: Fluid pressure direction B: Fluid flow direction

Claims (1)

[Claims] An impeller installed at a fluid discharge port and rotated by the pressure of the fluid, a control vane that determines the flow direction of the fluid at the discharge port, and a control vane that transmits and decelerates the rotation of the impeller and reciprocates the rotational motion. A flow direction changing device comprising: a control vane drive mechanism that converts the fluid into motion and drives the control vane to change the flow direction of the fluid.