KR20200085025A - Auto ventilating apparatus having improved conviences - Google Patents

Abstract

The present invention discloses an automatic ventilation apparatus for a sliding window with improved convenience, which can be quickly and easily mounted on a rail for a fixed window, can automatically open and close a movable window while a drive wheel is rotated in a forward or reverse direction through power of a first drive motor, and can automatically vary a position of the drive wheel through a tension adjusting part.

Description

Automatic ventilator for sliding windows for improved convenience{AUTO VENTILATING APPARATUS HAVING IMPROVED CONVIENCES}

The present invention is an automatic ventilation device of a sliding window, a case having a predetermined shape in which the inside is empty, and a fixed piece is fixed to be fitted to the rail for a fixed window; It is provided inside the case, when viewed from the side is made of a "c" shape, but on one side, a first fixing bracket in which a first fastening piece is bent vertically along an inner direction; A rotation shaft provided rotatably along a vertical direction inside the first fixing bracket, a driving wheel fitted to the lower portion of the rotation shaft, and an outer circumferential surface protruding to the outside of the case, in close contact with the outer circumferential surface of the moving window, A first worm wheel fitted to the rotation shaft and disposed on an upper portion of the drive wheel, and a first fixing bracket bolted to the first fastening piece to be coupled to the first fixing bracket, and a first worm engaged with the first worm wheel is provided on the rotating shaft. A driving unit including a first driving motor that opens and closes a moving window while the driving wheel rotates in the forward or reverse direction with the rotation shaft when power is applied; It relates to a sliding door-type automatic ventilation device for improved convenience, characterized in that it comprises; a tension control unit for moving the first fixed bracket in the width direction to move the drive wheel away from the moving window or in close contact.

Usually, windows and doors refer to various windows or doors that are installed in openings such as windows or doorways to block the inside of the building from the outside, and in buildings, windows and doors separate indoors and outdoors. At the same time, it acts as a wall, providing a path for supply of sunlight and fresh outside air, and is an essential component that gives people indoors a sense of view and openness.

Recently, due to the improvement of the performance of building technology and construction materials, windows and doors have excellent airtightness, and the inflow of outdoor air as well as the outflow of indoor air are tightly regulated, resulting in excellent air conditioning and cooling efficiency, but due to lack of ventilation, the floor and walls of the balcony, It causes mold propagation in windowpanes, etc., which threatens the hygiene environment or causes various respiratory, gas, dust, smoke, odor, and bacteria in the room.

In addition, there is a growing interest in fine dust generated by frequent dust and fine dust, cooking and vacuuming, and an automatic ventilation system that can automatically open and close windows to provide a more convenient and comfortable indoor environment. Demand is rapidly increasing.

However, the existing ventilation facility (ventilation system) is bulky, and the standard of windows is different for each building. When performing the ventilation function, foreign matters such as rain water, sand, and soil are easily introduced into the room due to weather changes such as typhoons, showers, and yellow sand, and suddenly the air flows through the windows are not natural. Due to variations in indoor temperature, not only the thermal efficiency is rapidly decreased, but also has a fatal adverse effect on the health of the elderly, infants and patients with weak immunity.

In order to solve this problem, the disclosed driving device position control device of the Republic of Korea Patent Publication No. 10-2017-0019938 and the automatic opening and closing device including the window are automatically opened and closed through the driving roller that receives the rotational force of the motor and rotates. It is possible to obtain a friction force required for driving by further including a position adjusting device for controlling the degree to which the driving roller is in close contact with the window.

The drive roller position adjustment device is configured so that the user can directly insert a tool such as a hexagon wrench or spanner or screwdriver into the wrench groove or bolt head formed at the rear end of the operating member to adjust the degree to which the drive roller is in close contact with the window. There was a troublesome and inconvenient problem in that a separate tool is required to adjust the tension of the drive roller and is manually adjusted by manpower.

The present invention was invented to solve the above problems, and in an automatic ventilation device for a sliding window, it can be quickly and easily mounted on a rail for a fixed window, and automatically rotates a driving wheel to facilitate a moving window. An object of the present invention is to provide an automatic ventilation device for a sliding window, which can be opened and closed and automatically or manually opened or closed of a moving window by automatically adjusting the position of the driving wheel.

For the above object, the present invention is an automatic ventilation device for a sliding window, in which the inside is empty, and a case of a predetermined shape in which a fixed piece is fixed to be fitted to a rail for a fixed window; It is provided inside the case, when viewed from the side is made of a "c" shape, but on one side, a first fixing bracket in which a first fastening piece is bent vertically along an inner direction; A rotation shaft provided rotatably along a vertical direction inside the first fixing bracket, a driving wheel that is fitted to the lower portion of the rotation shaft, and has one outer peripheral surface protruding outward of the case and in close contact with the outer peripheral surface of the moving window, A first worm wheel fitted to the rotation shaft and disposed on an upper portion of the driving wheel, and a first fastening bracket coupled to the first fastening piece and bolted to the first fixing bracket. A driving unit including a first driving motor that opens and closes a moving window while the driving wheel rotates in the forward or reverse direction with the rotation shaft when power is applied; It characterized in that it comprises; by moving the first fixing bracket in the width direction to move the drive wheel away from the moving window or close the tension adjustment unit.

In addition, in the present invention, the tension adjusting unit is disposed at the rear of the first fixing bracket, a rectangular plate-shaped base piece is bent vertically from one side of the base piece, and a second fastening piece in which the central portion is open by a predetermined area It is integrally formed, and when viewed from above, it is fixed to the second fixing bracket by fastening the second fixing bracket and the second fastening bracket and the second fixing bracket, and the rotating shaft is provided inside the second fixing bracket when viewed from above. The second driving motor, the spiral second worm coupled to the rotating shaft of the second driving motor, and the second worm mesh with the guide hole in which threads are formed along the inner circumferential surface are formed, and a predetermined diameter is formed. A second worm wheel having a spiral shape, a thread is formed along an outer circumferential surface to engage the guide hole, and a screw having a predetermined length that moves back and forth inside the guide hole when the second worm wheel rotates, and the outer circumferential surface of the rear surface of the first fixing bracket. It is fixed, and includes a screw guide bracket in which a screw insertion groove in which a screw thread is formed along an inner circumferential surface to accommodate the screw, and a screw guide groove in communication with the screw insertion groove is formed in the rear surface of the first fixing bracket. When the second driving motor is driven, when the screw is rotated through the second worm wheel rotated by the second worm, the first fixed bracket is moved along the width direction along with the screw guide bracket to change the position of the drive wheel to increase tension. It is characterized by being able to adjust.

In addition, the case according to the present invention is a fixed portion of a predetermined thickness inserted between the rail for the moving window and the rail for the fixed window is formed on both sides of the fixed piece, the fixed portion protrudes outward by the pivot axis to prevent slipping and Characterized in that the clearance adjustment member for increasing the adhesion is provided.

In addition, the present invention is fitted to the rotating shaft, the disk of the disk-shaped disk is spaced at equal intervals along the circumferential direction to form a plurality of transmission holes, and a light emitting unit for emitting light in the vertical direction from the top of the disk and , A photo sensor provided at a lower portion of the disk and composed of a light receiving unit that receives light passing through the light emitting unit and passing through the transmission hole, a control unit for recognizing the illuminance of light sensed by the photo sensor, and the control unit It is electrically connected, and when the detection value of the light-receiving unit is changed, it is characterized in that it includes a notification unit that outputs a lamp or a warning sound.

The present invention made as described above can be quickly and easily mounted on a rail for a fixed window via a fixed piece formed on the bottom surface of the case, and the drive wheel rotates in the forward or reverse direction through the power of the first driving motor. The mobile window can be opened and closed automatically, and there is a remarkable effect of automatically or manually opening and closing the moving window by selectively adjusting the position of the driving wheel through the tension adjusting unit.

In particular, the present invention can provide convenience to the user because the position of the driving wheel is automatically changed through the power of the second driving motor, and when mounted on a rail for a fixed window, between the moving window and the fixed window depending on the product (window) Even if the width is different, there is a remarkable effect that the case can be fixed sufficiently and firmly through the gap adjusting pad.

In addition, the present invention is provided with a disk, a photo sensor, a control unit and a notification unit, so that any external force acts on the moving window, the situation can be quickly notified to the surroundings, so that the room can be safely protected from external intrusion when going out. There is an effect that can give the user a psychological stability.

1 to 3 is an exemplary view of an automatic ventilation device for sliding windows and doors with improved convenience according to the present invention.
4 to 5 is a state of use of the present invention.
6 is an exemplary view of a first fixing bracket and a driving unit according to the present invention.
7 is an exemplary view of a tension control unit according to the present invention.
8 to 10 are schematic illustration views for explaining the principle that the driving wheel is moved along the width direction according to an embodiment of the present invention.
10 is a schematic illustration for explaining the crime prevention function according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the automatic ventilation device for sliding windows and doors that improved the convenience according to the present invention.

In the present invention, the sliding window type is a window that is provided with two or more windows (or doors) arranged horizontally inside the window frame, and a guide rail for sliding opening and closing of the window is provided on the bottom surface of the window frame. Says In the drawings to help understanding of the present invention, a rail 4 for a fixed window and a rail 6 for a movable window are arranged at predetermined intervals along the longitudinal direction on the bottom surface of the window frame 2, and are fixed to each rail. (3) and the moving window (5) was based on the window (1) that is slidably coupled, which is only an example for explaining the present invention and is not limited to the scope of the present invention.

The present invention discloses an automatic ventilation device for a sliding window that can be quickly and easily mounted, can automatically open and close a movable window, and can automatically adjust the position of a drive wheel for manual opening and closing of the movable window. .

For the above object, the present invention includes a case 100, a first fixing bracket 200, a driving unit 300, and a tension adjusting unit 400.

Referring to Figures 1 to 2, the case 100 is to form the appearance of the present invention, is made of a cylindrical shape, the inside is empty, a predetermined opening to allow the driving wheel to be described later protrudes to the outside 101 is formed.

The inside of the case 100 is formed with a diameter narrower than the case, and the circular bracket 101 having an empty interior is interpolated, and the first fixing bracket 200, the driving unit 300, and the tension adjusting unit 400 are The circular bracket 101 is inserted and fixed inside the case 100.

" 형상으로 이루어질 수 있다. On the bottom surface of the case, a fixing piece 110 that is fitted and fixed to the rail for the fixed window is formed. The fixing piece 110 can be easily fitted and fixed to the rail 4 for a fixed window, and secures an adhesive force and a supporting force by securing an area in contact with the outer circumferential surface of the rail 4 for the fixed window when fitting. So that it is roughly in terms of

"It can be made into a shape.

In addition, the inner circumferential surface of the fixing piece 110 is a material having excellent frictional force, for example, rubber, leather, synthetic material, to increase the binding force, prevent abrasion, and improve the frictional force by removing the clearance when fitted to the rail for a fixed window. A friction pad 111 formed of any one of leather, soft PVC, or silicone may be provided.

In addition, the lower side of the case according to the present invention may be formed of a fixed thickness 120 is inserted between the rail 4 for the fixed window and the rail 6 for the moving window.

The fixing part 120 can be smoothly inserted between the rail 4 for a fixed window and the rail 6 for a moving window and is seated on the bottom surface of the window frame 2 so as to stably support the case. It is formed in length and thickness. For example, the fixed portion of a predetermined diameter having a thickness corresponding to the width between the rail for the fixed window 4 and the movable window rail 6 so as to provide a sense of stability by securing an area grounded on the bottom surface of the window frame It can be made in a cylindrical shape.

In addition, the fixing part 120 is preferably formed on both sides around the fixing piece 110 so that the case 100 is not inclined to either side and maintains a balance.

In addition, the fixed portion 120 may be provided with a clearance adjusting member 121 protruding outward by the pivot shaft 122. For example, the window may be slightly different in width between a rail for a fixed window and a rail for a fixed window according to a standard or a manufacturer, so if the thickness of the fixed portion is constant, installation may not be possible due to clearance. The present invention is provided with a clearance adjustment member 121 protruding outward from the inside of the fixing part by the pivot shaft 122, the thickness of the fixing part 120 and the width between the rail for the fixed window and the rail for the movable window. Even if different, the case can be easily fixed and used.

Along with this, the clearance adjusting member 121 is provided with a friction pad (not shown) formed of a material having excellent friction, such as rubber, leather, artificial leather, soft PVC or silicone, on one surface to prevent slipping and further improve adhesion. It can be done.

Next, the first fixing bracket 200 is provided inside the case 100 to fix the driving unit 300, and is formed in an approximately “c” shape when viewed from the side, but vertically along the inner direction on one side. As a result, the first fastening piece 210 is bent.

The first fixing bracket 200 is excellent in strength and is preferably made of a lightweight material to reduce weight.

The first fastening piece 210 is made of a substantially rectangular or rectangular shape to be bolted with the first driving motor 350, which will be described later, and the rotation axis of the first driving motor is inside the first fixing bracket 200. A portion is open to a predetermined area so as to be positioned at.

In addition, on the other side of the first fixing bracket 200, a rectangular first support piece 220 is vertically bent to face the first fastening piece.

The first support piece 220 has a through-hole 2210 formed in a predetermined diameter so that the rotational axis of the first driving motor passes through the center so as to prevent the vibration (vibration) of the rotational axis when the first driving motor 350 rotates. ) Is formed and a bearing 2211 fixed to the rotating shaft of the first driving motor is inserted into the through hole.

Next, referring to FIG. 6, the driving unit 300 according to the present invention includes a rotating shaft 310, a driving wheel 320, a first worm wheel 330, a first worm 340, and a first It includes a driving motor 350.

The rotation shaft 310 is rotatably provided in the vertical direction inside the first fixing bracket, and the driving wheel 320 is spaced apart from the lower end of the first fixing bracket at a predetermined distance from the rotating shaft ( 310) is fitted to the lower portion and the outer circumferential surface protrudes outward through the opening portion 101 to be in close contact with the moving window 5.

In addition, the first worm wheel 330 is fitted to the rotating shaft and is provided on the upper portion of the driving wheel 320, the first driving motor 350 has a rotating shaft located inside the first fixing bracket 200 To be fastened to the first fastening piece 210 so as to be coupled with a first fixed bracket 200, a first worm 340 engaged with the first worm wheel 330 is provided on the rotation shaft of the first driving motor do.

The first driving motor 350 is preferably a motor that can be rotated in the forward or reverse direction to open and close the movable window (5).

When the power is applied to the first driving motor 350, the driving unit 300 rotates the first worm wheel 330 by the first worm 340, and the rotation shaft by the first worm wheel 330 ( 310) is rotated, the driving wheel 320 is rotated, and the driving window 320 is rotated in the forward or reverse direction according to the rotational direction of the first driving motor 350 to open and close the moving window 5.

Next, FIG. 7 is a schematic illustration for explaining the tension adjusting unit 400 according to the present invention, and FIGS. 8 to 10 illustrate the principle that the drive wheel is moved along the width direction according to an embodiment of the present invention It is a schematic illustration for doing.

The tension adjusting part 400 is provided at the rear of the first fixing bracket 200 to move the first fixing bracket along the width direction to move or close the driving wheel 320 from the moving window, or to 2 includes a fixed bracket 410, a second driving motor 420, a second worm 430, a second worm wheel 440, a screw 450, and a screw guide bracket 460.

The second fixing bracket 410 is disposed at the rear of the first fixing bracket, the base piece 411 of the rectangular plate type and a second vertically bent from the one side of the base piece and the central portion is formed open by a predetermined area The fastening piece 412 is formed integrally and is formed in a "-┐" shape when viewed from above.

The second fixing bracket 410 is excellent in strength and is preferably made of a lightweight material to reduce weight.

In addition, on the other side of the second fixing bracket, a second support piece 413 formed in a rectangular shape to face the second fastening piece is vertically bent.

The second support piece 413 has a through-hole 4130 formed in a predetermined diameter so that the rotation shaft of the second driving motor penetrates through the center so as to prevent the vibration (vibration) of the rotation shaft when the second driving motor 420 rotates. ) Is formed and a bearing 4131 fixed to the rotating shaft of the second driving motor is inserted into the through hole.

The second driving motor 420 is bolted to the second fastening piece 412 so that the rotating shaft is located inside the second fixing bracket 410 and coupled with the second fixing bracket 410, in the forward or reverse direction. It is preferably a rotatable motor.

The helical second worm 430 is coupled to the rotation shaft of the second driving motor, and a helical second worm wheel 440 formed to a predetermined diameter is engaged under the second worm.

In addition, a guide hole 441 in which threads are formed along an inner circumferential surface is formed at the center of the second worm wheel, and threads are formed along an outer circumferential surface inside the guide hole to move back and forth within the guide hole when the second worm wheel is rotated. Screw 450 of a predetermined length is engaged.

In addition, the base piece 411 is interpolated with a bearing 4131 coupled to one end of the screw 450, and a thread is formed along the inner circumferential surface to accommodate the other side of the screw on the rear outer circumferential surface of the first fixing bracket. The screw guide bracket 460 in which the screw insertion groove 461 is formed is coupled, and a screw guide groove 230 in communication with the screw insertion groove is formed at the rear surface of the first fixing bracket.

In addition, as shown in FIG. 10, bolt coupling pieces 104 are bolted to the front upper and lower portions of the circular bracket 102, and the first fixing bracket 200 has upper and lower bolt coupling pieces 104. It is supported in close contact with the guide block 103 formed integrally from and is fixed in the vertical direction and is provided to be movable only in the width direction.

The present invention including the above configuration is the screw guide when the screw 450 is rotated through the second worm wheel 440 rotated by the second worm 430 when the second driving motor 420 is driven. The first fixing bracket 200 along with the bracket 460 is moved along the width direction, and thus the position of the driving wheel 320 is automatically varied to easily adjust the tension.

The automatic ventilation device for a sliding window that opens and closes a moving window through a driving wheel disclosed in the related art is a tension adjusting means (for example, tension) separately provided in an automatic ventilation device after a user moves to a window when the user wants to manually open and close the moving window. Adjusting the bolt) could only be used to change the position of the drive wheel. That is, in the conventional automatic ventilation device, tension adjustment of the drive wheel is manually performed, and thus there is a remarkable inconvenience in use. In addition, in the case of using a bolt as a tension adjusting means, there was a cumbersome problem that requires a separate tool such as a screwdriver to adjust the tension, and a young child or the elderly may have difficulty in using the tool.

On the other hand, the present invention is convenient because it is possible to automatically change the position of the driving wheel 320 by driving the second driving motor 420 through a separately provided controller (not shown), and does not require a separate tool. There is a remarkable advantage that can be easily used by anyone of all ages.

Next, the automatic ventilation device according to the present invention can provide a security function that can safely protect the room from external intrusion.

In order to provide the above functions, the present invention is a disk-shaped disk 500, a photosensor 510, a control unit (not shown) and a notification unit fitted to the rotation shaft 310 as shown in FIG. (Not shown).

The disk 500 is formed with a plurality of transmission holes 501 spaced apart at equal intervals along the circumferential direction.

The photosensor 510 is a light emitting unit 511 that emits light in the vertical direction from the top to the bottom of the disk 500, and is emitted through the light emitting unit at the bottom of the disk passes through the transmission hole 501 It is composed of a light receiving unit 512 that receives one light, and is always operated.

For example, when the disk 500 is rotated along the rotation shaft 310 when the first driving motor 350 is driven, the light receiving part 512 is a light emitting part by a transmission hole 501 spaced apart at equal intervals from the disk. The light emitted through (511) is received at a constant time difference.

The control unit recognizes the illuminance of light sensed by the photosensor 510, the notification unit is electrically connected to the control unit, and outputs a lamp or a warning sound when the detection value of the light receiving unit changes.

When the first driving motor 350 is stopped after closing the open moving window 5, the rotation 310 axis and the disk 500 are stopped, and the light receiving unit 512 is configured to adjust the illuminance value in the stopped state. I remember.

In this state, when an arbitrary external force is applied to the moving window 5, the rotating shaft 310 and the disk 500 are rotated at the same time while the driving wheel 320 in close contact with the moving window 5 is forcibly rotated. When the 500 is rotated, light emitted through the light emitting unit is blocked by the blocked portion of the disk, and the illuminance value of the light receiving unit 512 changes.

As described above, when the illuminance value of the light-receiving unit 512 changes arbitrarily, the control unit immediately detects this and outputs a lamp or a warning sound through the notification unit to inform the surroundings to safely protect the room from external intrusion, and provide psychological stability to the user when going out Can.

On the other hand, the present invention is provided with a battery (not shown) inside the case or a terminal 105 to which a power cable for applying external power is connected to one side of the case is provided, the first driving motor 350 and the The power required for driving the two-drive motor 420 and the photosensor 510 may be supplied. In addition, the front of the case may be provided with a display screen 106 for displaying the operating state or the remaining battery capacity, the display screen provides a touch screen function to control the first driving motor or the second driving motor You may.

The present invention made as described above can be easily installed and used regardless of the specifications of the existing window frames or on-site conditions, and through the automatic opening and closing of windows, indoor ventilation is provided to manage indoor air quality. By doing so, you can pursue a healthy and comfortable life. In addition, the present invention is equipped with a tension control unit that can automatically adjust the tension of the driving wheel can be used by anyone of all ages and men without the help of others, and through the crime prevention function can be securely protected indoors from outside intrusion There are advantages.

1: Window 2: Window frame
3: Fixed window 4: Fixed window rail
5: moving window 6: moving window rail
100: case 101: opening
102: round bracket 103: guide block
104: bolt coupling piece 105: terminal
106: display screen
110: fixed piece 111: friction pad
120: fixing portion 121: clearance adjustment member
122: pivot axis 123: friction pad
200: first fixing bracket 210: first fastening
220: first support piece 2210: through hole
2211: bearing
230: screw guide groove
300: driving unit 310: rotating shaft
320: drive wheel 330: first worm wheel
340: first worm
350: first drive motor
400: tension control unit
410: second fixing bracket
411: base piece 412: second fastening piece
413: Second support piece 4130: Through hole
4131: bearing
420: 2nd drive motor
430: second worm
440: Second worm wheel 441: Guide hole
450: screw
460: screw guide bracket 461: screw insertion groove
500: disc 501: through hole
510: photosensor 511: light emitting unit
512: light receiving unit

Claims (4)

In the automatic ventilation device of the sliding window,
A case 100 of a predetermined shape in which the inside is empty, and a fixed piece is fixed to be fitted to the rail for the fixed window;
It is provided inside the case, when viewed from the side is made of a "c" shape, but on one side, a first fixing bracket 200 in which a first fastening piece is bent vertically along an inner direction;
The rotation shaft 310 is rotatably provided in the vertical direction inside the first fixing bracket, and is fitted to the lower portion of the rotation shaft, and one outer circumferential surface protrudes to the outside of the case, driving close to the outer circumferential surface of the moving window The wheel 320, the first worm wheel 330 fitted to the rotation shaft and disposed on the upper portion of the drive wheel, and the first fastening bracket are bolted to the first fixing bracket and coupled to the rotating shaft, the first worm wheel A driving unit 300 including a first driving motor 350 which is provided with a first worm 340 that engages and opens and closes a moving window while the driving wheel rotates in the forward or reverse direction along with the rotation shaft when power is applied;
A tension adjusting unit 400 that moves the first fixing bracket along the width direction to move or close the driving wheel from the moving window;
Sliding type automatic ventilation device for improved windows, characterized in that it comprises a.
According to claim 1, The tension control unit,
The second fastening piece which is disposed at the rear of the first fixing bracket, is formed perpendicular to the base piece of the rectangular plate shape and one side of the base piece, and the central portion is open by a predetermined area, is integrally formed and viewed from above. 정" second fixed bracket made of a shape,
A second driving motor which is bolted to the second fastening piece and is fixed to a second fixing bracket, and a rotating shaft having a rotating shaft provided inside the second fixing bracket;
A helical second worm coupled to the rotating shaft of the second driving motor,
The second worm wheel is engaged with the second worm, and a guide hole in which a thread is formed along an inner circumferential surface is formed in the center, and a helical second worm wheel having a predetermined diameter,
A screw is formed along the outer circumferential surface to engage the guide hole, and a screw of a predetermined length that moves back and forth inside the guide hole when the second worm wheel rotates,
It is fixed to the rear outer peripheral surface of the first fixing bracket, and includes a screw guide bracket in which a screw insertion groove is formed in which a screw thread is formed along the inner peripheral surface to accommodate the screw,
A screw guide groove communicating with the screw insertion groove is formed at a rear surface of the first fixing bracket,
When the second driving motor is driven, when the screw is rotated through the second worm wheel rotated by the second worm, the first fixed bracket is moved along the width direction along with the screw guide bracket to adjust the tension by varying the position of the drive wheel. Automatic ventilation device for sliding windows and doors with improved convenience.
According to claim 1,
The case is formed with a fixed portion of a predetermined thickness that is inserted between the rail for the movable window and the rail for the fixed window on both sides of the fixed piece,
The fixing portion is projected to the outside by a pivot axis to prevent slipping and an automatic ventilation device for sliding windows with improved convenience, characterized in that a clearance adjustment member is provided to increase adhesion.
According to claim 1,
A disc of a disk shape which is fitted to the rotation shaft and spaced at equal intervals along the circumferential direction to form a plurality of transmission holes,
A photo sensor comprising a light-emitting unit emitting light vertically from the top of the disk, and a light-receiving unit provided at the bottom of the disk and receiving light passing through the through hole through the light emitting unit,
And a control unit for recognizing the light intensity detected by the photosensor,
An automatic ventilation device for sliding doors and windows with improved convenience, which is electrically connected to the control unit and includes a notification unit that outputs a lamp or a warning sound when the detection value of the light receiving unit changes.

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