KR101545548B1

KR101545548B1 - Plane screen apparatus

Info

Publication number: KR101545548B1
Application number: KR1020150078386A
Authority: KR
Inventors: 허학재
Original assignee: (주)효성엔바이로
Priority date: 2015-06-03
Filing date: 2015-06-03
Publication date: 2015-08-20

Abstract

The present invention relates to a flat screen device which is capable of raising the screen to the upper part of a waterway so that the screen is easily cleaned and the length of the rake is varied to sequentially remove the obstacles on the screen, A pair of guide rails provided on both side walls of the water channel in front of the screen, and a pair of guide rails provided on both side walls of the water channel in front of the screen, A rake which is mounted between the chain and formed so as to have a length gradually increased; a sprocket which is coupled to the chain at an upper portion of the guide rail; A sprocket drive unit for driving the sprocket so that the sprocket A hinge portion provided between the lower end and the frame; an angular movement portion provided between the upper end of the screen and the frame; an elastic support portion provided on the screen; a load sensing control portion provided on the screen; And a screen rising portion.

Description

[0001] PLANE SCREEN APPARATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flat screen apparatus for removing contaminants caught on a screen through a rake which moves on an endless track by a chain, and more particularly, And the length of the rake is varied so that the obstacles hanging on the screen are sequentially removed so that a large amount of obstacles can be prevented from being damaged by the obstacles.

Generally, a flat screen device is installed in various waterways such as a drainage pumping station, a water supply water intake facility, a sewage treatment plant, and a related water supply channel, and removes the impurities contained in the water stream to the upper part of the waterway.

FIG. 9 illustrates an example of such a conventional flat screen apparatus. The conventional flat screen apparatus includes a frame 1 installed on a wall surface of a channel, a screen 2 inclined in front of the frame 1, A pair of guide rails 3 provided on both side walls of the water channel in front of the screen 2, a chain 4 provided movably in an endless track along the guide rails 3, A rake 5 mounted between the chains 4 so as to remove the contaminants caught on the front of the guide rails 2 and a sprocket 6 connected to the chain 4 at the upper part of the guide rails 3, And a sprocket drive unit 7 for driving the sprocket 6 so that the chain 4 is moved.

In the conventional flat screen apparatus constructed as described above, the contaminants smaller than the bar spacing of the screen 2 out of the contaminants falling along with the water flow escape to the back of the screen 2 together with the water flow, And the contaminants trapped on the front surface of the screen 2 are guided to the chain 4 through the sprocket drive unit 7 installed at the front upper portion of the screen 2. Then, To rotate the sprocket 6 coupled to the sprocket 6.

The chain 4 on which the rake 5 is mounted is moved from the front to the upper side of the screen 2 simultaneously with the rotation of the sprocket 6, , And the thus discharged contaminants are conveyed to the outside through a separate discharge conveyor (not shown) provided on the upper back surface of the screen 2. [

Conventional flat screen apparatuses have been insufficient in effectively removing the contaminants depending on the inflow water as the rotational speed of the rake is always constant. As a conventional technique for solving such problems, the rotational speed of the rake may vary depending on the inflow water A water level sensor for detecting a water level is installed on a wall surface or a flat screen device of a water channel and a continuously variable transmission for varying a rotation speed of a driving motor of a sprocket driving part is configured to be remote- The water level sensor detects the water level sensor to speed up the continuously variable transmission. On the contrary, when the water flow rate is low, the water level sensor senses it and shifts the continuously variable transmission to the low speed mode. Increase and decrease speed, unnecessary work It is one way was introduced to reduce.

However, this technology is difficult to perform maintenance work by installing the water level sensor sensing the water level directly on the guide rail or the water channel wall of the flat screen device, and there is a high possibility that the water level sensor is damaged by the water contaminant, Resulting in a malfunction.

In order to solve this problem, the applicant of the present invention proposed a "flat screen device" (Mar. 21, 2011), which is a simple structure and easy to manufacture and install, The reliability of the sensing is improved to prevent malfunctions, and the life of the device is remarkably extended, so that unnecessary operation is smoothly prevented, thereby saving energy.

However, as described above, the registered patent of the present applicant has the following problems.

In the conventional flat screen apparatus, the reliability of sensing is improved by the operation by the load. However, when a long time use is made, the obstacle which is not removed by the rake among the obstacles caught on the screen is piled up and the rake is caught during operation, There was a problem that a failure occurred.

Further, in the conventional flat screen apparatus, when the rake is inserted too deeply into the screen, the rake is caught by the obstacle when the load or amount of the obstacle caught on the screen is excessive, and the obstacle can not be properly rolled.

Registered Patent No. 1025168 entitled "Flat Screen Device" (Mar. 21, 2011)

Accordingly, the present invention is an improvement of the registered patent application No. 1025168, which the present applicant has filed for registration and has solved the above problems,

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of cleaning a screen by raising the screen to the upper part of a waterway so that the screen can be easily cleaned and the length of the rake is varied to sequentially remove the obstacles on the screen, And a flat screen device.

In order to achieve the above object, a "flat screen apparatus" according to the present invention comprises a frame installed on a wall of a channel, a screen inclined in front of the frame, A pair of guide rails provided on the guide rails, a chain provided movably in an endless track along the guide rails, a rake mounted between the chains, a sprocket coupled to the chain at an upper portion of the guide rails, A hinge unit mounted on both sides of the lower end of the screen so that the screen can be rotated with respect to the frame; and an upper end of the screen, which is positioned at the center of the hinge unit, An angular portion mounted on both upper sides of the screen to be moved; A resilient support for resiliently supporting the screen according to the load of the obstacle caught on the front surface of the screen and restoring the screen to its original position when the contaminants trapped on the front surface of the screen are removed; And a load sensing control unit installed on the frame and the screen to control the sprocket driving unit when the obstacle becomes a predetermined load or more. A plurality of nut housings mounted on the lower surface of the frame so as to be separated from the wall of the water channel, and a pair of the nut housings mounted on the lower surface of the frame, A motor driving unit mounted on an upper end of the spiral bar and adapted to rotate the spiral bar; an upper end attached to the lower surface of the motor driving unit and a lower end fixed to the upper wall of the water channel And a rotation support portion provided on a lower surface of the water channel and rotatably supporting the lower end of the spiral bar, wherein the motor drive portion drives the spiral rod to raise the screen to the upper side of the upper wall of the water channel A screen rising portion; And the rake is formed in such a manner that three rakes are sequentially attached at regular intervals and mounted on the chain, and the length of the rake is sequentially increased along the traveling direction of the chain.

The rotary support portion of the "flat screen apparatus" according to the present invention includes a casing having a lower end of the spiral bar rotatably passed through the upper surface thereof and mounted on a lower surface of the water channel, A lower body mounted to the lower surface of the water channel in the casing so as to correspond to a lower surface of the circular body; A first bearing formed between the lower surface of the circular body and the upper surface of the lower body and rotatably supporting the circular body with respect to the lower body, And a second bearing which is provided between the outer peripheral surface of the cylindrical projection and rotatably supports the circular groove with respect to the cylindrical projection .

Further, a "flat screen apparatus" according to the present invention comprises: a rod support unit provided on the support and supporting the spiral rod and the nut housing; Wherein the rod-receiving portion comprises: a support body provided on the support base; a horizontal spiral hole formed horizontally through the support body and having a thread formed on an inner peripheral surface thereof; And a rotary knob attached to one end of the horizontal support rod and capable of supporting the spiral rod and the nut housing, and a rotary knob attached to the other end of the horizontal support rod.

As described above, according to the present invention, the screen can be raised to the upper part of the water channel, the screen can be easily cleaned, and the length of the rake can be varied to sequentially remove the obstacles hung on the screen, The operating stability of the screen device is improved, and the service life is remarkably prolonged.

1 is a schematic side cross-sectional view of a flat screen device according to the present invention,
Fig. 2 is an enlarged view of the main part of Fig. 1,
3 is a schematic rear perspective view of a flat screen device according to the present invention,
4 to 6 are schematic top cross-sectional views of a flat screen apparatus according to the present invention,
7 is a schematic side cross-sectional view showing the operating state of the flat screen apparatus according to the present invention,
8 is a schematic side cross-sectional view of a flat screen device according to another embodiment of the present invention,
Figure 9 is a schematic perspective view of a conventional flat screen device;

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

1 to 7 are schematic views of a flat screen apparatus according to the present invention. As shown in the drawings, the present flat screen apparatus includes a frame 10 installed on a wall surface of a water channel, a screen 20 inclined in front of the frame 10, A pair of guide rails 30 provided on both side walls of the screen 20, a chain 40 provided to be movable in an endless track along the guide rails 30, A rake 50 mounted between the chains 40, a sprocket 60 coupled to the chain 40 at an upper portion of the guide rail 30, And a sprocket driving unit 70 for driving the sprockets 60.

The present flat screen apparatus includes a hinge unit 80 installed between the lower end of the screen 20 and the frame 10 and a hinge unit 80 installed between the upper end of the screen 20 and the frame 10, A load sensing control part 110 installed on the screen 20 and a screen elevating part 120 for raising the screen 20 are installed on the screen 20, .

The frame 10 is installed separately from the wall of the channel so that the screen 20 can be moved up and down together with the frame 10 through the screen riser 120.

As shown in FIGS. 1 and 4 to 6, the rake 50 is connected to the chain 40 at regular intervals and is mounted on the chain 40, And the length is sequentially increased.

As described above, three rakes 50 are sequentially formed, that is, one is the shortest, the second is the middle length, and the third is the longest, so that the scratches caught in the screen 20 are gradually scraped So that even if the contaminants are accumulated excessively, the contaminants can be easily removed.

The hinge unit 80 includes a hinge shaft 81 mounted on both sides of the lower end of the screen 20 and a hinge hole 82 formed in the frame 10 and rotatably fitted with the hinge shaft 81. [ And the hinge shaft 81 is inserted into the hinge hole 82 and rotatably supports the screen 20 with respect to the frame 10 with the hinge portion 80 as a center.

Each of the moving parts 90 includes a moving rod 91 mounted on both sides of the top of the screen 20 and a sliding slot 92 formed in the frame 10 and into which the moving rod 91 is slidably fitted And each of the moving rods 91 is fitted in the sliding slot 92 so that the upper end of the screen 20 is moved in correspondence with the frame 10 with the hinge portion 80 as a center .

The elastic supporting portion 100 is mounted on the upper portion of the screen 20 and elastically supports the screen 20 in accordance with the load of the obstacle caught on the front surface of the screen 20, And to restore the screen 20 to its original position when the obstacles on the front surface are removed.

The elastic supporting part 100 having the above-described function is provided with a vertical slot 101 formed on both sides of the upper side of the screen 20 and a vertical slot 101 slidably fitted in the vertical slots 101, A fixing bolt 102 to be fixed, and a spring 103 to be fitted to the fixing bolt 102.

The load sensing control unit 110 includes a contact rod 111 mounted on the screen 20 and a contact sensor 112 mounted on the frame 10 in correspondence with the contact rod 111 And controls the driving of the sprocket driving unit 70 when the obstacle caught on the front surface of the screen 20 is over a predetermined load.

The screen lifting part 120 lifts up the screen 20 together with the frame 10 so that an operator can easily clean the screen 20. [

The screen lifting unit 120 has a plurality of nut housings 121 that are mounted on both sides of the lower surface of the frame 10 and are screwed to the nut housing 121, A pair of spiral rods 122 installed on the upper side of the frame 10 so as to correspond to both sides of the lower surface of the frame 10 and a motor driving unit 122 mounted on the upper end of the spiral rods 122 to rotate the spiral rods 122. [ A support base 124 having an upper end attached to the lower surface of the motor driving unit 123 and a lower end fixed to the upper wall B of the water channel; And a rotation support portion 125 for rotatably supporting the lower end of the rotation support portion 125.

The nut housing 121 is a tubular member having a female thread formed therein and is screwed to the spiral bar 122 and moved up and down along the spiral bar 122 together with the rotation of the spiral bar 122 will be. The spiral bar 122 has a thread formed on the outer circumferential surface thereof and serves to raise or lower the nut housing 121 while rotating forward or reverse by the motor driving unit 123.

The motor driving unit 123 is a well-known motor and reducer. The motor driving unit 123 drives the spindle 122 to rotate forward or reverse while being driven by power supply. The support base 124 is installed between the upper wall B of the water channel and the lower surface of the motor driving unit 123 and supports the motor driving unit 123 on the upper side of the upper wall B .

The rotation support part 125 rotatably supports the lower end of the spiral bar 122 on the inner bottom surface of the water channel. The rotary support part 125 has a casing 125a which is rotatably passed through the upper end of the spiral bar 122 and is mounted on a lower surface of the water channel, A circular body 125b attached to the lower end of the spiral bar 122 and a circular groove 125c formed at the center of the lower surface of the circular body 125b and a circular groove 125c formed in the lower surface of the circular body 125b, A cylindrical body 125e formed on the upper surface of the lower body 125d and inserted into the circular groove 125c, and a cylindrical body 125c formed on the upper surface of the circular body 125d, A first bearing 125f provided between the lower surface of the lower body 125d and the upper surface of the lower body 125d to rotatably support the circular body 125b with respect to the lower body 125d, And the cylindrical projection 125e is provided between the inner peripheral surface of the cylindrical projection 125e and the outer peripheral surface of the cylindrical projection 125e, For a second bearing (125g) for rotatably supporting the circular groove (125c).

The casing 125a serves to receive and protect various components including the circular body 125b and the circular body 125b is rotatably coupled to the lower body 125d, The circular protrusion 125e is rotatably inserted into the circular groove 125c so that the circular body 125b and the lower body 125d can be coupled with each other.

The lower body 125d is rotatably coupled to the circular body 125b through the cylindrical protrusion 125e and rotatably supports the spiral bar 122 to which the circular body 125b is attached . The first bearing 125f and the second bearing 125g are capable of rotatably supporting the circular body 125b on the upper portion of the lower body 125d.

7, when an obstacle is caught on the screen 20 so that the contaminants are not removed through the rake 50, the operator can easily grasp the screen lifting part 120 So that the screen 20 is lifted up to the upper part of the upper wall B of the waterway to perform cleaning.

At this time, the operation of the screen lifting unit 120 is performed such that the screw housing 122 is rotated while the motor driving unit 123 is driven, so that the nut housing 121 screwed to the screw bar 122 And is raised along the spiral bar 122.

As the nut housing 121 is raised as described above, the frame 10 attached to the nut housing 121 and the screen 20 mounted on the frame 10 are raised obliquely along the spiral bar 122 And is located on the upper side of the upper wall B.

When the screen 20 is cleaned to completely remove the impurities adhering to the screen 20 after the screen 20 is raised and then the motor drive unit 123 is driven to rotate the spiral bar 122 in the opposite direction, The frame 10 and the screen 20 are returned to their original positions while the arm 121 descends along the spiral bar 122.

8 is a schematic side cross-sectional view of a flat screen device according to another embodiment of the present invention. As shown in the figure, the flat screen device according to another embodiment of the present invention further includes a rod-receiving portion 130 installed on the support 124. The rod support part 130 supports the spiral rod 122 and the nut housing 121 in a state where the screen 20 and the frame 10 are lifted and the load of the frame 20 and the frame 10 To prevent damage or breakage of the spiral bar 122 due to the rotation of the spiral bar 122.

The rod-receiving portion 130 having the above-described function is provided with a receiving body 131 provided on the support base 124 and a horizontal spiral hole 131 formed horizontally through the receiving body 131, A horizontal support bar 133 which is screwed to the horizontal helical hole 132 and is horizontally movable while being rotated and a horizontal support bar 133 attached to one end of the horizontal support bar 133 and fixed to the nut bar 122 121 and a rotary knob 135 attached to the other end of the horizontal support rod 133. [

The support body 131 serves to support the horizontal support rods 133 by screwing them together. The horizontal spiral hole 132 serves to provide a place where the horizontal support rod 133 is screwed. The horizontal support rods 133 are screwed to the support body 131 and horizontally moved to support the support 134 while horizontally moving the support 134.

The pedestal 134 supports the lower ends of the spiral bar 122 and the nut housing 121 and the rotary knob 135 is rotated by the operator holding the hand to rotate the horizontal support rod 133 and the pedestal 134 to one side or the other side.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is clear that the present invention can be suitably modified and applied in the same manner. Therefore, the above description does not limit the scope of the present invention, which is defined by the limitations of the following claims.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention.

10: frame
20: Screen
30: Guide rail
40: Chain
50: Lake
60: sprocket
70: Sprocket drive
80: Hinge section
81: Hinge shaft 82: Hinge shaft
90: angular motion
91: Each moving rod 92: Sliding slot
100: elastic support
101: vertical slot 102: fastening bolt
103: spring
110: Load sensing control unit
111: contact rod 112: contact sensor
120: Screen rising part
121: nut housing 122:
123: motor driving unit 124:
125:
125a: casing 125b: circular body
125c: circular groove 125d: lower body
125e: Cylindrical projection 125f: First bearing
125g: Second bearing
130:
131: Support body 132: Horizontal spiral ball
133: horizontal support rod 134: pedestal
135: Turn handle
B: Upper wall

Claims

A pair of guide rails provided on both side walls of the water channel in front of the screen (20); a frame (10) installed on the wall of the water channel; a screen (20) A chain 40 provided to be movable in an endless track along the guide rail 30 and a rake 30 mounted between the chain 40 to remove the clogging on the front surface of the screen 20. [ A sprocket 60 coupled to the chain 40 at an upper portion of the guide rail 30 and a sprocket drive unit 70 for driving the sprocket 60 to move the chain 40, A hinge unit 80 mounted on both sides of the lower end of the screen 20 so that the screen 20 can be rotated with respect to the frame 10 and a hinge unit 80 mounted on both sides of the hinge unit 80, (20) on both sides of the upper side of the screen (20) so that the upper ends thereof are moved corresponding to the frame A screen 20 mounted on the upper surface of the screen 20 and elastically supporting the screen 20 in accordance with the load of the obstacle hooked on the front surface of the screen 20, An elastic support part 100 for restoring the screen 20 to its original position when the clogged part on the front surface of the screen 20 is removed; And a load sensing control unit (110) installed on the frame (10) and the screen (20) to control the display unit (70);
Wherein the frame (10) is installed separately from the wall of the channel,
A plurality of nut housings 121 mounted on both sides of the lower surface of the frame 10 and a plurality of nut housings 121 screwed to the nut housing 121 and inclined from the bottom to the upper side of the frame 10, A motor driving unit 123 mounted on the upper end of the spiral bar 122 to rotate the spiral bar 122 and a lower face of the motor driving unit 123, And a rotation support part 125 installed on a lower surface of the water channel and rotatably supporting the lower end of the spiral bar 122. The rotation support part 125 is provided on the lower surface of the water channel, And a screen lifting part 120 for lifting the screen 20 to the upper side of the upper wall of the waterway while the spiral bar 122 is rotated by driving the motor driving part 123; Including,
The rake (50)
And the length of the rake (50) is sequentially increased along the traveling direction of the chain (40).

The method according to claim 1,
The rotation support part
A casing 125a rotatably passed through the lower end of the spiral bar 122 and mounted on a lower surface of the water channel,
A circular body 125b attached to the lower end of the spiral bar 122 into the casing 125a,
A circular groove 125c formed at the lower center of the circular body 125b,
A lower body 125d mounted on the lower surface of the water channel to the inside of the casing 125a corresponding to the lower surface of the circular body 125b,
A cylindrical protrusion 125e formed on the upper surface of the lower body 125d and inserted into the circular groove 125c,
A first bearing 125f provided between the lower surface of the circular body 125b and the upper surface of the lower body 125d and rotatably supporting the circular body 125b with respect to the lower body 125d,
A second bearing 125g provided between the inner peripheral surface of the circular groove 125c and the outer peripheral surface of the cylindrical projection 125e and rotatably supporting the circular groove 125c with respect to the cylindrical projection 125e,
Wherein the flat screen device comprises:

The method according to claim 1,
Wherein the flat screen device comprises:
A rod support unit 130 installed on the support rod 124 and supporting the spiral rod 122 and the nut housing 121; Further included,
The rod-receiving portion (130)
A support body 131 installed on the support base 124,
A horizontal spiral hole 132 formed horizontally through the receiving body 131 and having a thread on an inner peripheral surface thereof,
A horizontal support rod 133 screwed to the horizontal helical hole 132 and movable horizontally while being rotated,
A pedestal 134 attached to one end of the horizontal support rod 133 and capable of supporting the spiral rod 122 and the nut housing 121,
A rotary knob 135 attached to the other end of the horizontal support rod 133,
Wherein the flat screen device comprises: