JPH053337U - Waterway dust remover - Google Patents

Abstract

(57) [Summary] [Purpose] Automatically remove the dust flowing in the waterways. [Structure] A fixed screen 2 is installed in a water channel 1 in a posture inclined rearward, and a movable screen 4 is engaged with the fixed screen 2 so that elements are staggered. Two upper and lower shafts 5a and 5b are rotatably supported on the outer frame 3, and legs 4b of the movable screen 4 are connected by pins 7 to the ends of the upper and lower links 6a and 6b fixed at right angles to these shafts. . Electric motor 9
When the shaft 5a is rotationally driven by and the link 6a is rotated clockwise, the movable screen 4 moves circularly in the order indicated by A, B, C and D while keeping parallel to the fixed screen 2. Protrusions 10 are provided at regular intervals on each element of the movable screen 4, and when the movable screen moves as described above, the protrusions also move circularly to move in and out between the elements of the fixed screen. Then, when the protrusion 10 is projected on the fixed screen, the front edge of the protrusion 11 moves upward along the fixed screen and carries the dust caught on the fixed screen upward.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a waterway dust remover for automatically removing dust flowing through waterways for irrigation and the like.

[0002]

[Prior Art]

 Conventionally known is a waterway dust remover in which a screen is placed at a right angle to the waterway and the trash attached to the screen is scooped up with a rake attached to a chain conveyor.

[0003]

[Problems to be solved by the device]

 Such a conventional dust remover has a drawback that the structure is complicated such as using a chain conveyor and that the manufacturing cost is high. The present invention aims to provide a dust remover with a simpler structure and at a lower cost.

[0004]

[Means for Solving the Problems]

 The waterway dust remover of the present invention comprises a fixed screen installed in a waterway so as to be tilted backward, and a movable screen in which the fixed screen and the elements are alternately engaged with each other.

The movable screen is pin-connected to the ends of upper and lower links that are parallel to each other and have the same length, which are rotatably supported around two shafts that are equidistant from the upper surface of the fixed screen. . At least one of the upper and lower links is rotated by the drive device. The upper surface of the movable screen is provided with a plurality of protrusions protruding and retracting from the upper surface of the fixed screen.

[0006]

[Operation] When one of the upper and lower links is rotated by the drive device, the movable screen makes a circular motion while keeping parallel to the fixed screen. Then, the protrusions provided on the upper surface of the movable screen move in and out from the upper surface of the fixed screen to make a circular motion, and carry the dust caught on the fixed screen upward.

[0007]

【Example】

 Reference numeral 1 is a water channel in which a fixed screen 2 having the full width of the water channel is installed in a tilted position. The fixed screen 2 has a plurality of elements 2a attached to the outer frame 3 in the vertical direction at regular intervals, and dust flowing in the water channel 2 is caught by these elements.

Reference numeral 4 is a movable screen, which also has an element 4a passing through it in the up-down direction, and the fixed screen 2 and the element are engaged alternately (FIG. 2). Two upper and lower shafts 5a, 5b are rotatably supported on the outer frame 3, and legs 4b of the movable screen 4 are pinned by pins 7 at the ends of the upper and lower links 6a, 6b fixed at right angles to these shafts. Are combined.

The upper shaft 5a is connected to an electric motor 9 via a transmission chain 8. When the electric motor drives the shaft 5a to rotate and the link 6a rotates clockwise in FIG. 1, the movable screen 4 moves. While keeping parallel to the fixed screen 2, circular movement is performed in the order shown by A, B, C, and D in FIG.

Protrusions 10 are provided on each element of the movable screen 4 at regular intervals, and when the movable screen moves as described above, the protrusions also make a circular motion and come out between the elements 2a of the fixed screen. Come and go. Then, when the protrusion 10 projects above the fixed screen, the front edge of the protrusion 11 moves upward along the fixed screen, as also shown in FIG.

Therefore, the dust 12 caught on the fixed screen 2 is carried up by the projection 10 of the movable screen 4, further transferred to the next adjacent projection 10 and carried further up. The upper edge 2b of each element 2a of the fixed screen 2 is formed like saw teeth so that dust is not slid down when it is transferred from one projection to another.

In this way, the dust 12 is carried to the tip of the screen, and finally falls on and collects in the dust receiving tray 13.

[0013]

[Effect of the device]

 As described above, the waterway dust remover of the present invention has an extremely simple structure such as the need for a chain conveyor, which has been conventionally used, and has an effect that it can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a side view of a dust remover.

FIG. 2 is a sectional view taken along line XX of FIG.

FIG. 3 is an explanatory diagram showing an action of a protrusion when viewed from the same direction as FIG.

[Explanation of symbols]

 1 Water Channel 2 Fixed Screen 4 Movable Screen 5a Upper Shaft 5b Lower Shaft 6a Upper Link 6b Lower Link 9 Electric Motor (Drive) 10 Protrusion 12 Garbage

Claims (1)

[Claims for utility model registration] Claims: 1. A fixed screen (2) installed in a waterway (1) so as to be tilted backward, and two shafts (5a) equidistant from the upper surface of the fixed screen. , 5b) which are rotatably supported about the upper and lower links (6a, 6b) which are parallel to each other and have the same length, and the fixed screen and the element, which are pin-connected to the ends of these links, are alternately engaged with each other. A movable screen (4) that is fitted together, a drive device (9) that rotates at least one of the up and down links, and a plurality of protrusions (projecting and retracting from the upper surface of the fixed screen, which are provided on the upper surface of the movable screen. A waterway dust remover consisting of 10).