KR101687146B1

KR101687146B1 - Open and close system having chain

Info

Publication number: KR101687146B1
Application number: KR1020150132166A
Authority: KR
Inventors: 김철중
Original assignee: 김철중; (주)청일레이져; 주식회사 엘씨
Priority date: 2015-09-18
Filing date: 2015-09-18
Publication date: 2016-12-28

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a design shielding opening / closing control system for a chain type that opens a design shield by using a chain and closes a design shield by using a chain when gas is sensed, ; A bearing installed at a front side of the support frame; A control unit installed at one side of the support frame at a predetermined interval from the bearing to control the design-based shielded object opening / closing control system for the chain type according to a preset program; A gas sensing sensor which is installed at one side of the support frame at a predetermined interval from the control unit and is electrically connected to the control unit and senses gas in accordance with a control signal of the control unit; A motor installed at one side of the inner surface of the support frame at a predetermined distance from the gas sensing sensor, the motor being electrically connected to the control unit and rotating according to a control signal of the control unit; A speed reducer disposed at a predetermined distance from an upper surface of the support frame and connected to the motor to decelerate rotation of the motor and rotate forward or reverse in accordance with the rotation of the motor; A first sprocket rotatably disposed on an upper surface of the support frame at a predetermined interval from the speed reducer and having a key engagement hole at an inner center thereof; And a second sprocket disposed opposite to the first sprocket at a predetermined interval and having a key engagement hole at the center thereof.

Description

{Open and close system having chain}

The present invention relates to a design shielding opening / closing control system, and more particularly, to a design shielding control system for opening a design shield by using a chain and closing a design shield by using a chain when gas is detected, Closing control system.

Among the general construction sites and fixed facilities, the barrier walls for securing and protecting the facilities which are not located in the buildings but are not installed in the outdoors and which are not equipped with facilities for covering the fences or other facilities are covered have.

Wherein the barrier wall comprises a concrete base, a main pipe fixed to the base and standing perpendicular to the ground, a transverse pipe fixed to the main pipe, and panels for blocking the actual view by being fixed to the transverse pipe And the above-mentioned panels are widely used such as ordinary corrugated plates.

Meanwhile, the blocking wall is also referred to as a decorative plate or a design shielding, and the shielding is disclosed in Japanese Patent Application No. 10-2011-0102529 filed on Oct. 07, 2011 (titled shielded shield, patent owner: Filed with the Korean Intellectual Property Office (KIPO), and claims the following: "" H beam 100 fixed to the ground and installed around a facility to be shielded to a certain length; A first connection part 104 welded to an upper end of the H beam 100 at a predetermined length and provided with a fastening hole 102 at a predetermined interval in the body; A second connection part 108 welded to a lower end of one side of the H beam 100 to have a predetermined length and provided with a fastening hole 106 at a predetermined interval in the body; A third connection part 112 welded to the other upper end of the H beam 100 at a predetermined length and provided with a fastening hole 110 at a predetermined interval in the body; A fourth connection part 116 welded to a lower end of the other side of the H beam 100 to have a predetermined length and provided with a fastening hole 114 at a predetermined interval in the body; And a first connection part (104) which is fixed to the first connection part (104) by a fixing means (118) in contact with a side surface of the first connection part (104) and has a fastening hole (120) (122); Shaped contact portion 112 which is fixed to the second connection portion 108 by the fixing means 118 in contact with the side surface of the second connection portion 108 and is provided with a fastening hole 124 at a predetermined interval in the body, (126); Shaped contact portion 112 which is fixed to the third connection portion 112 by the fixing means 118 in contact with the side surface of the third connection portion 112 and has a fastening hole 128 at a predetermined interval in the body, (130); Shaped contact portion provided with a fastening hole 132 at a predetermined interval in the body so as to be in contact with the side surface of the fourth connection portion 116 and fixed to the fourth connection portion 116 by the fixing means 118, (134); A first support frame (not shown) is welded to the first "ㅗ" shaped contact portion 122 and the third "ㅗ" shaped contact portion 130 to have a predetermined length and a "138); Shaped support member 140 having a "C" -shaped receiving guide 140 in the longitudinal direction, which is welded to the second "L" -shaped contact portion 126 and the fourth "L" -shaped contact portion 134 by a predetermined length, 142); A support bracket 144 installed between the first support frame 138 and the second support frame 142 to support the first support frame and the second support frame; Shaped receiving guide 136 of the first supporting frame 138 and the U-shaped receiving guide 140 of the second supporting frame 142 so that the receiving hole 146 is formed in the body, (148); The first support frame 138 and the second support frame 142 are vertically contacted with a predetermined length on one side of the upper surface of the first support frame 138 and the second support frame 142 and are fixed to the receiving hole 146 of the cylindrical portion 148, A decorative means (150) sliding on sliding; And a separation preventing part (151) fitted on both ends of the first support frame (138) and the second support frame (142) to prevent the separation of the cylindrical part (148). 2. The method of claim 1, wherein the decorating means (150) is vertically contacted to one side of the upper surface of the first support frame (138) and the second support frame (142) Shaped sliding portion 156 having a fastening hole 152 and a connecting hole 154 formed at a predetermined distance from the body edge; Shaped sliding portion 156 when the cylindrical portion 148 is slidably engaged with the receiving hole 146 of the cylindrical portion 148 through the fastening hole 152 of the "C" shaped sliding portion 156 A locking rivet 158 for sliding the locking protrusion; Shaped sliding portion 156 by the fixing means 118 while being fixed to the " C "-shaped sliding portion 156, and the connecting hole 160 is installed at the edge of the body at a predetermined interval A support plate 162; A protrusion 166 extending vertically upward from the center of the upper surface of the support plate 162 and having a coupling groove 164 formed at the center of the body in the longitudinal direction; And an ornamental plate (170) having a fitting portion (168) which is pressed against the engaging groove (164) of the protrusion (166). 3. The method according to claim 2, wherein a resilient coupling gripper 180 is provided on the upper surface and the lower surface of the protrusion 166, and an elastic contact protrusion 182 is formed on the inner surface of the coupling gripper 180 Wherein the shielding member is installed in the shielding member. " to be.

However, there is a problem in that the conventional assembled shield can not open and close the design shield using the chain.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method of opening a design shield by using a chain, And to provide a design shielding object opening /

However, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, according to the present invention,

A support frame;

A bearing installed at a front side of the support frame;

A control unit installed at one side of the support frame at a predetermined interval from the bearing to control the design-based shielded object opening / closing control system for the chain type according to a preset program;

A gas sensing sensor which is installed at one side of the support frame at a predetermined interval from the control unit and is electrically connected to the control unit and senses gas in accordance with a control signal of the control unit;

A motor installed at one side of the inner surface of the support frame at a predetermined distance from the gas sensing sensor, the motor being electrically connected to the control unit and rotating according to a control signal of the control unit;

A speed reducer disposed at a predetermined distance from an upper surface of the support frame and connected to the motor to decelerate rotation of the motor and rotate forward or reverse in accordance with the rotation of the motor;

A first sprocket rotatably disposed on an upper surface of the support frame at a predetermined interval from the speed reducer and having a key engagement hole at an inner center thereof;

A second sprocket positioned opposite to the first sprocket with a predetermined gap therebetween and having a key engagement hole at an inner center thereof;

A first rotation shaft installed on the key-engagement hole of the speed reducer and the first sprocket for rotating the first sprocket in accordance with rotation of the speed reducer;

A chain provided on an outer surface of the first sprocket and an outer surface of the second sprocket to rotate the second sprocket in accordance with rotation of the first rotation shaft;

A rotation angle detection sensor which is installed on one side of the upper surface of the first rotation shaft and is electrically connected to the control unit and senses the rotation angle of the first rotation axis according to a control signal of the control unit;

A shaft which is fitted in the key engagement hole of the bearing and the second sprocket and rotates according to the rotation of the second sprocket;

A main bar installed in the shaft, the main bar having a connecting groove at the center thereof and rotating in accordance with the rotation of the shaft;

And a design shield installed in the connection groove of the main bar to open and close the inlet and outlet in accordance with the rotation of the main bar, and to close the inlet and outlet for gas detection to prevent leakage of gas.

As described above, the design shielding opening / closing control system for a chain type according to the present invention has the effect of easily opening and closing a design shield by using a chain.

In particular, since the present invention uses a chain, it is possible to shorten installation time of the design shielding opening / closing control system, thereby reducing labor costs.

And, the present invention has the effect of easily replacing the design shield when the design shield is broken.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a design shielding opening / closing control system for a chain type according to the present invention;
Fig. 2 is a schematic configuration diagram of a design shielding opening / closing control system for chain type of Fig. 1,
FIG. 3 is a main part exploded view of the design shielding opening / closing control system for the chain type of FIG. 1,
FIGS. 4 to 5 are enlarged views of the design shielding opening / closing control system for the chain type of FIG. 1,
FIGS. 6 to 7 are views showing a state in which a design shield is opened in a design shielding opening / closing control system for the chain type of FIG. 1;
Fig. 8 is a view showing a closed state of the design shield in the design shielding opening / closing control system for the chain type of Fig. 1;

Hereinafter, a preferred embodiment of a design shielding opening / closing control system for a chain type according to the present invention will be described.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 1 is a view showing a design shielding opening / closing control system for a chain type according to the present invention, FIG. 2 is a schematic structural view of a design shielding opening and closing control system for a chain type of FIG. 1, FIGS. 4 to 5 are enlarged views of the design shielding opening / closing control system for the chain type of FIG. 1; FIG.

As shown in FIGS. 1 to 5, the design shielding opening / closing control system 1 for a chain type according to the present invention includes:

A first support frame (3);

A first connection frame (5) protruding from a front surface of the first support frame (3);

A first guide 9 provided at one end of the first connection frame 5 and having a sliding groove (not shown) at the center thereof;

A second guide 11 provided at one end of the first connection frame 5 at a predetermined distance from the first guide 9 and having a sliding groove (not shown) at the center thereof;

A second support frame (13) positioned at a predetermined distance from the first support frame (3);

A second connection frame 15 protruding from the front surface of the second support frame 13;

A third guide 17 provided at one end of the second connection frame 15 and having a sliding groove 7 at an inner center thereof;

A fourth guide 19 provided at one end of the second connection frame 15 at a predetermined interval from the third guide 17 and having a sliding groove 7 in the center thereof;

A first engaging portion (not shown) which is accommodated in the sliding groove of the first guide 9 and slides therein and has a screw hole (not shown) at the center thereof;

A second engaging part (not shown) which is accommodated in the sliding groove of the second guide 11 and slides therein and has a screw hole (not shown) at the center thereof;

A first fixing part (27) screwed to the first and second coupling parts;

A first bearing (29) installed on a front side of the first fixing part (27);

A third engaging portion 31 which is accommodated in the sliding groove 7 of the third guide 17 and slid therein and has a screw hole (not shown) at the center thereof;

A fourth engaging portion 33 which is accommodated in the sliding groove 7 of the fourth guide 19 and has a screw hole (not shown) at the center thereof;

A second fixing part 35 screwed to the third coupling part 31 and the fourth coupling part 33;

A second bearing (37) installed on a front side of the second fixing part (35);

A support plate 39 installed at one side of the second connection frame 15 at a predetermined distance from the rear of the third guide 17;

A support plate 43 provided on one side of the upper surface of the support plate 39 and having a through hole (not shown) at the center thereof;

A control unit 45 installed at one side of the second support frame 13 for controlling the chain type design shielding opening / closing control system according to a preset program;

A gas sensing sensor 47 which is installed at one side of the second support frame 13 at a predetermined interval from the control unit 45 and is electrically connected to the control unit 45 and detects gas in accordance with a control signal of the control unit 45, )Wow;

A motor 49 which is installed at one side of the inner surface of the second support frame 13 at a predetermined interval from the gas sensing sensor 47 and is electrically connected to the control unit 45 and rotates in accordance with a control signal of the control unit 45, Wow;

A decelerator 51 connected to the motor 49 for decelerating the rotation of the motor 49 and rotating forward or reverse in accordance with the rotation of the decelerated motor 49, ;

A first sprocket 55 rotatably disposed between the support plate 39 and the support plate 43 and having a key engagement hole (not shown) at the center thereof;

A second sprocket 57 located opposite to the first sprocket 55 at a predetermined interval and having a key engagement hole (not shown) at the center thereof;

A first rotation shaft 59 installed on the key engagement hole of the speed reducer 51 and the first sprocket 55 to rotate the first sprocket 55 according to the rotation of the speed reducer 51;

A chain 61 installed on the outer surface of the first sprocket 55 and the outer surface of the second sprocket 57 to rotate the second sprocket 57 in accordance with the rotation of the first rotating shaft 59;

A rotation angle sensor 63 which is installed on one side of the upper surface of the first rotation shaft 59 and is electrically connected to the control unit 45 and senses the rotation angle of the first rotation shaft 59 in accordance with a control signal of the control unit 45, )Wow;

A first shaft (not shown) fitted in the first bearing 29;

A second shaft 67 fitted in the key engagement hole of the second bearing 37 and the second sprocket 57 and rotating according to the rotation of the second sprocket 57;

A main bar 71 provided between the first and second shafts 67 and having a connection groove 69 at the center thereof and rotated according to the rotation of the second shaft 67;

And a design shield 73 installed in the connection groove 69 of the main bar 71 to open and close the inlet and outlet according to the rotation of the main bar 71 and to prevent the leakage of gas by closing the inlet and outlet when gas is detected .

The installation process and use state of the design shielding opening / closing control system for a chain type according to the present invention will be described as follows.

Here, the installation process of the design shielding opening / closing control system for a chain type according to the present invention can be changed as much as the installer.

First, after the first support frame 3 is installed, the first connection frame 5 is installed on the front surface of the first support frame 3 so as to protrude.

A first guide 9 having a sliding groove (not shown) is provided at one end of the first connecting frame 5 at the center thereof.

A second guide 11 having a sliding groove (not shown) is provided at one end of the first connecting frame 5 at a predetermined distance from the first guide 9 at an inner center thereof.

After the second support frame 13 is installed at a predetermined distance from the first support frame 3, a second connection frame 15 is installed so as to protrude from the front surface of the second support frame 13 .

A third guide 17 is provided at one end of the second connection frame 15 and has a sliding groove 7 at the center thereof.

A fourth guide 19 having a sliding groove 7 at the center of the second connecting frame 15 is provided at one end of the second connecting frame 15 at a predetermined interval from the third guide 17.

A first engaging portion (not shown) having a screw hole (not shown) is inserted into the sliding groove of the first guide 9 at the center thereof.

A second engaging portion (not shown) having a screw hole (not shown) is inserted into the sliding groove of the second guide 11 at the center thereof.

Then, the first fixing portion (27) is fixed to the first engaging portion and the second engaging portion with screws.

A first bearing (29) is provided on one side of the front surface of the first fixing part (27).

A third engaging portion 31 having a screw hole (not shown) is inserted into the sliding groove 7 of the third guide 17 at the center thereof.

A fourth engaging portion 33 having a screw hole (not shown) is inserted into the sliding groove 7 of the fourth guide 19 at the center thereof.

The second fixing portions 35 are fixed to the third and fourth engaging portions 31 and 33 with screws.

A second bearing (37) is installed on one side of the front surface of the second fixing part (35).

A support plate 39 is provided at one side of the second connection frame 15 at a predetermined distance from the rear of the third guide 17 and then a through hole (Not shown) is provided on the base plate 43. [

The control section 45 is provided at one side of the second support frame 13 to control the chain type design shielding opening and closing control system in accordance with a predetermined program, A gas sensing sensor 47 for sensing a gas is installed on one side of the support frame 13. Then, the gas sensing sensor 47 is electrically connected to the control unit 45.

A motor 49 is installed at one side of the inner surface of the second support frame 13 at a predetermined interval from the gas sensing sensor 47. Then, the motor 49 is electrically connected to the control unit 45.

After the speed reducer 51 is installed on the motor 49, the speed reducer 51 is positioned on the upper surface of the support plate 43 provided with a through hole (not shown).

Here, the speed reducer 51 serves to decelerate the rotation of the motor 49.

A first sprocket 55 having a key engagement hole (not shown) is centrally disposed between the support plate 39 and the support plate 43 so as to be rotatable.

A second sprocket 57 having a key engagement hole (not shown) is rotatably positioned at the center of the first sprocket 55 at a predetermined distance from the first sprocket 55.

After the first rotary shaft 59 is installed in the key engagement hole of the speed reducer 51 and the first sprocket 55 and the outer surface of the first sprocket 55 and the outer surface of the second sprocket 57, A chain (61) for rotating the second sprocket (57) in accordance with the rotation of the first rotating shaft (59) is provided.

A rotation angle sensor 63 for sensing the rotation angle of the first rotation shaft 59 is installed on one side of the upper surface of the first rotation shaft 59. Then, the control unit 45 is electrically connected to the rotation angle sensor 63.

The first shaft (not shown) is inserted into the first bearing 29 and the second shaft 67 is inserted into the key engagement hole of the second bearing 37 and the second sprocket 57 .

A main bar 71 is provided between the first shaft 67 and the second shaft 67 and has a connection groove 69 at the center thereof and rotates in accordance with rotation of the second shaft 67.

A design shield 73 for preventing leakage of gas is inserted into the connection groove 69 of the main bar 71 by opening and closing the inlet and outlet according to the rotation of the main bar 71, .

Then, the design shield 73 is fixed to the main bar 71 with screws.

When the installation of the design shielding opening / closing control system for chain type according to the present invention is completed,

The control unit 45 sends a control signal to the motor 49.

In accordance with the control signal of the control unit 45, the motor 49 rotates in the forward direction (clockwise direction).

In addition, the speed reducer 51 is provided to the motor 49 so that the speed reducer 51 decelerates the forward rotation of the motor.

The first rotary shaft 59 provided on the key engagement hole of the first sprocket 55 slowly rotates forwardly in accordance with the forward rotation of the speed reducer 51.

The first sprocket 55 slowly rotates in a forward direction before the first rotary shaft 59 is rotated.

Then, the chain 61 slowly rotates forward before the first sprocket 55 is rotated.

The second sprocket 57 slowly rotates forward before the chain 61 is rotated.

Then, the second shaft 67 installed on the key engagement hole of the second sprocket 57 slowly rotates forward before the second sprocket 57 is rotated.

The main bar 71 provided with the connection groove 69 slowly rotates in a forward direction before the second shaft 67 is rotated forward.

6 to 7, the design shield 73, which is inserted into the connection groove 69 of the main bar 71, opens the inlet and the outlet.

On the other hand, when the design shield 73 starts to be opened, the control unit 45 sends a control signal to the rotation angle detection sensor 63.

In response to the control signal from the controller 45, the rotation angle sensor 63 senses the rotation angle of the first rotation shaft 59 in real time and sends the sensed rotation angle detection value to the controller 45.

The control unit 45 compares the sensed rotation angle sensed value and the sensed sensed sensed rotational angle value with the preset sensed sensed rotational angle value (e.g., the sensed sensed rotational angle value of the first sensed axis) 40, that is, the design shield 73 is considered to be fully open and sends a control signal to the motor 49. [

In response to the control signal from the control unit 45, the motor 49 stops rotating.

Then, the control unit 45 sends a control signal to the gas sensor 47.

In response to the control signal from the control unit 45, the gas sensor 47 detects the gas leakage in real time and sends the detected gas leakage value to the controller 45.

If the detected gas leakage value is greater than the set leakage value, that is, the gas is considered to have leaked, the controller (45) compares the pre-set leakage value with the sensed gas leakage value, Lt; / RTI >

The motor 49 rotates in the counterclockwise direction in accordance with the control signal from the controller 45. [

The speed reducer 51 is provided to the motor 49 so that the speed reducer 51 decelerates the reverse rotation of the motor.

The first rotary shaft 59 installed on the key engagement hole of the first sprocket 55 slowly rotates counterclockwise according to the reverse rotation of the speed reducer 51.

The first sprocket 55 slowly rotates counterclockwise in accordance with the reverse rotation of the first rotary shaft 59.

Then, the chain 61 slowly rotates counterclockwise in accordance with the reverse rotation of the first sprocket 55.

The second sprocket 57 slowly rotates counterclockwise in accordance with the reverse rotation of the chain 61.

The second shaft 67 installed in the key engagement hole of the second sprocket 57 slowly rotates counterclockwise in accordance with the reverse rotation of the second sprocket 57.

The main bar 71 provided with the connection groove 69 slowly rotates in the reverse direction according to the reverse rotation of the second shaft 67.

8, the design shield 73, which is inserted into the connection groove 69 of the main bar 71, closes the inlet and the outlet, as the main bar 71 reversely rotates.

The foregoing description of the invention is merely exemplary of the invention and is used for the purpose of illustration only and is not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will appreciate that various modifications and equivalent embodiments are possible without departing from the scope of the present invention. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: Control system for shield type design for chain type
3: first supporting frame
5: first connection frame 7: sliding groove
9: first guide 11: second guide
13: second supporting frame 15: second connecting frame
17: Third Guide 19: Fourth Guide
27: first fixing portion 29: first bearing
31: third coupling portion 33: fourth coupling portion
37: second bearing 39: support plate
43: Support plate 45:
47: gas sensor 49: motor
51: Reduction gear 55: First sprocket
57: second sprocket 61: chain

Claims

A support frame;
A bearing installed at a front side of the support frame;
A control unit installed at one side of the support frame at a predetermined interval from the bearing to control the design-based shielded object opening / closing control system for the chain type according to a preset program;
A gas sensing sensor which is installed at one side of the support frame at a predetermined interval from the control unit and is electrically connected to the control unit and senses gas in accordance with a control signal of the control unit;
A motor installed at one side of the inner surface of the support frame at a predetermined distance from the gas sensing sensor, the motor being electrically connected to the control unit and rotating according to a control signal of the control unit;
A speed reducer disposed at a predetermined distance from an upper surface of the support frame and connected to the motor to decelerate rotation of the motor and rotate forward or reverse in accordance with the rotation of the motor;
A first sprocket rotatably disposed on an upper surface of the support frame at a predetermined interval from the speed reducer and having a key engagement hole at an inner center thereof;
A second sprocket positioned opposite to the first sprocket with a predetermined gap therebetween and having a key engagement hole at an inner center thereof;
A first rotation shaft installed on the key-engagement hole of the speed reducer and the first sprocket for rotating the first sprocket in accordance with rotation of the speed reducer;
A chain provided on an outer surface of the first sprocket and an outer surface of the second sprocket to rotate the second sprocket in accordance with rotation of the first rotation shaft;
A rotation angle detection sensor which is installed on one side of the upper surface of the first rotation shaft and is electrically connected to the control unit and senses the rotation angle of the first rotation axis according to a control signal of the control unit;
A shaft which is fitted in the key engagement hole of the bearing and the second sprocket and rotates according to the rotation of the second sprocket;
A main bar installed in the shaft, the main bar having a connecting groove at the center thereof and rotating in accordance with the rotation of the shaft;
And a design shield installed in the connection groove of the main bar to open and close the inlet and the outlet in accordance with the rotation of the main bar and to prevent the leakage of gas by closing the inlet and outlet when gas is sensed.

A support frame;
A guide provided at one end of the support frame and having a sliding groove at an inner center thereof;
An engaging portion which is accommodated in the sliding groove of the guide and slidably provided with a screw hole in the center thereof;
A fixing part screwed to the coupling part;
A bearing installed at a front side of the fixing part;
A support plate installed at one side of the support frame at a predetermined distance from the rear of the guide;
A support plate provided on one side of the upper surface of the support plate and having a through hole at the center of the support plate;
A control unit installed at one side of the support frame to control the design-based shielded object opening / closing control system for a chain type according to a predetermined program;
A gas sensing sensor which is installed at one side of the support frame at a predetermined interval from the control unit and is electrically connected to the control unit and senses gas in accordance with a control signal of the control unit;
A motor installed at one side of the inner surface of the support frame at a predetermined distance from the gas sensing sensor, the motor being electrically connected to the control unit and rotating according to a control signal of the control unit;
A speed reducer installed on the upper surface of the support plate and connected to the motor to decelerate the rotation of the motor and rotate forward or reverse according to the rotation of the decelerated motor;
A first sprocket rotatably disposed between the support plate and the support plate, the first sprocket having a key engagement hole at the center thereof;
A second sprocket positioned opposite to the first sprocket with a predetermined gap therebetween and having a key engagement hole at an inner center thereof;
A first rotation shaft installed on the key-engagement hole of the speed reducer and the first sprocket for rotating the first sprocket in accordance with rotation of the speed reducer;
A chain provided on an outer surface of the first sprocket and an outer surface of the second sprocket to rotate the second sprocket in accordance with rotation of the first rotation shaft;
A rotation angle detection sensor which is installed on one side of the upper surface of the first rotation shaft and is electrically connected to the control unit and senses the rotation angle of the first rotation axis according to a control signal of the control unit;
A shaft which is fitted in the key engagement hole of the bearing and the second sprocket and rotates according to the rotation of the second sprocket;
A main bar installed in the shaft, the main bar having a connecting groove at the center thereof and rotating in accordance with the rotation of the shaft;
And a design shield installed in the connection groove of the main bar to open and close the inlet and the outlet in accordance with the rotation of the main bar and to prevent the leakage of gas by closing the inlet and outlet when gas is sensed.

A first support frame (3);
A first connection frame (5) protruding from a front surface of the first support frame (3);
A first guide 9 provided at one end of the first connection frame 5 and having a sliding groove at an inner center thereof;
A second guide (11) provided at one end of the first connection frame (5) at a predetermined distance from the first guide (9) and having a sliding groove at the center of the first connection frame (5);
A second support frame (13) positioned at a predetermined distance from the first support frame (3);
A second connection frame 15 protruding from the front surface of the second support frame 13;
A third guide 17 provided at one end of the second connection frame 15 and having a sliding groove 7 at an inner center thereof;
A fourth guide 19 provided at one end of the second connection frame 15 at a predetermined interval from the third guide 17 and having a sliding groove 7 in the center thereof;
A first engaging portion which is accommodated in the sliding groove of the first guide 9 and slides therein and has a screw hole in the center thereof;
A second engaging portion which is accommodated in the sliding groove of the second guide 11 and slidably provided with a screw hole in the center thereof;
A first fixing part (27) screwed to the first and second coupling parts;
A first bearing (29) installed on a front side of the first fixing part (27);
A third engaging portion 31 which is accommodated in the sliding groove 7 of the third guide 17 and slides and has a screw hole in the center thereof;
A fourth engaging portion 33 which is accommodated in the sliding groove 7 of the fourth guide 19 and has a screw hole in the center thereof;
A second fixing part 35 screwed to the third coupling part 31 and the fourth coupling part 33;
A second bearing (37) installed on a front side of the second fixing part (35);
A support plate 39 installed at one side of the second connection frame 15 at a predetermined distance from the rear of the third guide 17;
A support plate (43) provided on one side of the upper surface of the support plate (39) and having a through hole at the center of the support plate (39);
A control unit 45 installed at one side of the second support frame 13 for controlling the chain type design shielding opening / closing control system according to a preset program;
A gas sensing sensor 47 which is installed at one side of the second support frame 13 at a predetermined interval from the control unit 45 and is electrically connected to the control unit 45 and detects gas in accordance with a control signal of the control unit 45, )Wow;
A motor 49 which is installed at one side of the inner surface of the second support frame 13 at a predetermined interval from the gas sensing sensor 47 and is electrically connected to the control unit 45 and rotates in accordance with a control signal of the control unit 45, Wow;
A decelerator 51 connected to the motor 49 for decelerating the rotation of the motor 49 and rotating forward or reverse in accordance with the rotation of the decelerated motor 49, ;
A first sprocket 55 rotatably disposed between the support plate 39 and the support plate 43 and having a key engagement hole at the center thereof;
A second sprocket (57) positioned facing the first sprocket (55) with a predetermined gap therebetween and having a key engagement hole at the center thereof;
A first rotation shaft 59 installed on the key engagement hole of the speed reducer 51 and the first sprocket 55 to rotate the first sprocket 55 according to the rotation of the speed reducer 51;
A chain 61 installed on the outer surface of the first sprocket 55 and the outer surface of the second sprocket 57 to rotate the second sprocket 57 in accordance with the rotation of the first rotating shaft 59;
A rotation angle sensor 63 which is installed on one side of the upper surface of the first rotation shaft 59 and is electrically connected to the control unit 45 and senses the rotation angle of the first rotation shaft 59 in accordance with a control signal of the control unit 45, )Wow;
A first shaft fitted into the first bearing (29);
A second shaft 67 fitted in the key engagement hole of the second bearing 37 and the second sprocket 57 and rotating according to the rotation of the second sprocket 57;
A main bar 71 provided between the first and second shafts 67 and having a connection groove 69 at the center thereof and rotated according to the rotation of the second shaft 67;
And a design shield 73 installed in the connection groove 69 of the main bar 71 to open the inlet and outlet in accordance with the rotation of the main bar 71 and to prevent gas leakage by closing the inlet and outlet when gas is detected A design shielded material opening and closing control system for a chain type characterized by.