KR200288313Y1 - Two stage opening and shutting device for a ventilating window situated on high - Google Patents

Abstract

The present invention relates to an opening and closing device for opening and closing a ventilation window which is installed at a high wall of a structure such as a factory and used for the purpose of ventilation, mining, and exhaust gas. A mechanical control structure is formed in the switchgear to protect the sensor from burning out, and the opening and closing angle of the ventilation window opens at 45 degrees in rainy weather, and the opening and closing is increased by natural convection using the air temperature difference between indoor and outdoor. The present invention relates to a ventilation two-stage opening and closing device for ventilation operated by two-stage opening and closing, which opens at an angle of 120 degrees.

According to the present invention, a male thread is formed only at a portion of the end of the screw gear, and a female thread is formed only at a predetermined portion of the tubular rack gear. It is supported and provided with a two-stage opening and closing device for ventilating gochang consisting of a tubular rack gear to be moved up and down a certain section by the rotation of the screw gear by extrapolating the tubular rack gear in contact with the upper end of the spring.

Description

Two stage opening and shutting device for a ventilating window situated on high}

The present invention relates to an opening and closing device for opening and closing a ventilation window which is installed at a high wall of a structure such as a factory and used for the purpose of ventilation, mining, and exhaust smoke, and more specifically, for electric control of a motor that is a power source for opening and closing a ventilation window. A mechanical control structure is formed in the switchgear to protect the sensor from burning out, and the opening and closing angle of the ventilation window opens at 45 degrees in rainy weather, and the opening and closing is increased by natural convection using the air temperature difference between indoor and outdoor. The present invention relates to a ventilation two-stage opening and closing device for ventilation operated by two-stage opening and closing, which opens at an angle of 120 degrees.

Ventilation windows have become a very important environmental factor in factory buildings, as are legally regulated as a means of health hygiene and industrial accident prevention. Therefore, many devises have been made to increase the ventilation properties, and in view of the conventional ventilation windows, there are a mesocer window, a 45-degree open / closed window, a 45-degree or 90-degree pivoted horizontal window or a longitudinal window.

The ventilation window has a structure that is mechanically and electrically opened and closed for efficient management, the drive shaft is rotated by the motor and the gearbox, the window is opened and closed by the opening and closing rod connected to the drive shaft and the T-shaped joint pipe. That is, in the gear box, a screw gear meshed with the motor gear formed at the end of the motor shaft is meshed with the inside of the tubular rack gear, and the rack gear formed on the outer surface of the tubular rack gear is meshed with the drive gear connected to the drive shaft. The tubular rack gear having the rack gear is moved up and down by the forward and reverse rotation of the gear. The drive gear of the drive shaft engaged with the gear is rotated to rotate the drive shaft, and the ventilation window is opened and closed by an opening / closing rod connected to the drive shaft.

Here, in the conventional tubular rack gear and screw gear structure, the female thread is formed inside the tubular rack gear, which is formed throughout the entire length of the tubular rack gear, and the male screw is also the entire length of the screw gear. Formed.

The conventional ventilation window having the above structure and its opening / closing structure have structural defects. Conventional opening and closing structure is opened and closed entirely by electrical control, there is a side effect that causes a serious problem when the sensor that recognizes the degree of opening and closing does not function properly due to failure or the like. That is, the screw gear and the female thread inside the tubular rack gear are engaged with each other over the entire section, so it is a structure that relies only on the electrical sensor without the function of mechanical stop, and the opening / closing recognition sensor is closed when the ventilation window is fully opened or completely closed. When it is pressed, it generates a signal to stop the operation of the motor. When it becomes impossible such as a failure, the operation of the motor cannot be stopped. Therefore, the motor used for this is a very large capacity motor that can withstand wind pressure during opening and closing of the ventilation window, and thus has a very serious problem such as breakage of the switching device and damage of the ventilation window, and the danger of a large fire due to the motor overheating. . In addition, the opening and closing angle of the conventional ventilation window is configured irrespective of the behavior of the air focusing only on the opening and closing rate, there is a disadvantage that there is no effect of ventilation by the natural convection of the indoor air.

The object of the present invention is to provide a switchgear equipped with a mechanical safety device in preparation for the burnout of the sensor required for the electrical control of the ventilation window in view of the conventional problems as described above, by the natural convection using the temperature difference between the indoor and outdoor air The present invention provides a ventilating two-stage opening and closing device having an opening and closing angle determined for ventilation.

1 is an overall perspective view of the present invention

2 is a side view of the present invention

Figure 3 is a detailed view of the opening and closing device of the present invention seen in the direction "A" of FIG.

Figure 4 is a cross-sectional view "B-B" of Figure 3 opening and closing device with the ventilation window completely closed

State diagram

Figure 5 is a cross-sectional view "B-B" of Figure 3 opening and closing device with the ventilation window fully open.

State diagram

6 is an air circulation diagram of the structure to which the present invention is applied

<Explanation of symbols for the main parts of the drawings>

1 housing 2 window frame 3 knuckle

4: opening and closing rod 5: driving shaft 6: motor

7: motor gear 8: tubular rack gear 9: female thread

10 male thread 11 clamp 12 screw gear

13 rack gear 14 drive gear 15 T-type connector

16: I / Y type knuckle joint 17: spring 18: shielding film

19: upper packing 20: lower packing

100: ventilation window 200: switchgear

Hereinafter, the configuration and operation of the present invention will be described in detail with reference to the accompanying drawings.

The present invention is an opening and closing device 200 for opening and closing the ventilation window 100 by rotating the opening and closing rod 4 connected to the knuckle (3) of the window frame (2) installed in the housing (1) and the drive shaft (5) connected thereto. , The male screw 10 is inserted into the female screw 9 formed in the entire inner section of the tubular rack gear 8 is screwed to the motor gear (7) in contact with the shaft of the motor (6) is formed in the entire length of the section Screw gear 12 supported by the clamp 11, drive gear 14 engaged with the rack gear 13 formed on the outer surface of the tubular rack gear 8, and coupled to the drive gear 14 to rotate Drive shaft 5 and a plurality of opening and closing rods 4 connected to drive shaft 5 and T-shaped connecting pipe 15 and knuckles 3 attached to I / Y-type knuckle joints 16 and window frames 2 And the tubular rack gear 8 in which the rack gear 13 is formed is lifted by the forward and reverse rotation of the screw gear 12, and the drive gear 14 of the drive shaft 5 engaged with the screw gear 12 is rotated to drive the drive shaft ( 5) In the opening and closing device 200 of the ventilation window for the ventilation window 100 is opened and closed by the opening and closing rod 4 connected to the drive shaft 5, the screw gear 12 is a male screw only at a portion of the upper end portion (10). Is formed, the tubular rack gear (8) has a female screw (9) is formed only in a predetermined portion of the lower end of the inner portion, the male screw (10) portion is located on the upper spring (17) in the vertically placed screw gear (12) This insert is supported by the clamp 11, characterized in that the tubular rack gear 8 is extrapolated to the screw gear 12 to be in contact with the upper end of the spring (17).

In the figure, reference numeral 18 is a shielding film, 19 is an upper packing, and 20 is a lower packing.

The present invention configured as described above can prevent burnout and fire of the ventilation window 100 and the motor 6 by the mechanical safety structure.

First, the opening and closing device 200 in a state in which the ventilation window 100 is closed is in a state as shown in FIG. 4. That is, the tubular rack gear 8 is supported by the meshing of the rack gear 13 and the drive gear 14 in a state in which the spring 17 is compressed, and is fixed while retaining the upward elastic force by the spring 17. The male screw 10 of the screw gear 12 is completely removed from the female screw 9 of the tubular rack gear 8 and is located in an internal space in which the female screw 9 is not formed. When the motor 6 is operated to open the ventilation window 100 in the above state, the screw gear 12 is rotated by the motor gear 7, and the tubular rack gear 8 is moved by the upward elastic force of the spring 17. ) Is moved upwards so that the upper part of the female thread 9 of the tubular rack gear 8 and the lower part of the male thread 10 of the screw gear 12 are engaged with each other. ) Is moved upwards, and accordingly, the rack gear 13 formed in the tubular rack gear 8 is also moved upwards at the same time so that the driving gear engaged with the rack gear 13 rotates clockwise. Therefore, the opening and closing rod 4 is rotated as shown in FIGS. 1 and 2 by the drive shaft 5 connected to the drive gear 14 to lift the window frame 2.

In this case, the present invention makes it possible to prevent the inflow of rainwater by rotating the window frame 2 only about 45 degrees in rainy weather, it is possible to make the ideal ventilation conditions as shown in FIG. The opening angle of 45 degrees can be controlled by the sensor. Conventionally, the opening ratio is increased by allowing the opening to be 45 degrees or 90 degrees, but this is only numerically high opening ratio, and actually less ventilation than 120 degrees. That is, the 120-degree open structure of the present invention has a structure that improves the shout by using natural convection using the temperature difference between the indoor air and the outdoor air. Therefore, as shown in FIG. 6, the hot air naturally exits through the ventilation window 100, and the cold air naturally forms a circulation path of convection introduced into the room.

In addition, another feature of the present invention is a shielding film of a structure that is fixed to the housing (1) and folded to prevent the inflow of rainwater, etc. into the space portion on the upper packing 19 and the lower packing 20 as shown in FIG. 18 is mounted on both sides of the window frame 2 so that the shielding film 18 mounted in accordance with the rotation of the window frame 2 is freely hinged together with the window frame 2.

The ventilation window 100 is opened in the entire process as shown in FIG. 5. Here, the features of the present invention are revealed, conventionally, the opening of the ventilation window 100 is recognized by a sensor (not shown) to send a signal to stop the motor 6. However, due to the failure of the sensor, the motor 6 continues to rotate and the ventilation window 100 is continuously opened, causing the ventilation window 100 to be damaged or a fire due to overheating of the motor 6. However, the present invention has a structure in which the tubular rack gear 8 completely falls out by the rotation of the screw gear 12. That is, since the screw gear 12 is idling under the female screw 9 of the tubular rack gear 8, the ventilation window 100 is not opened even if there is a failure of the sensor, thereby preventing fire and the like, such as damage to the ventilation window 100. It becomes possible. In addition, since the driving gear 14 is engaged with the rack gear 13, the ventilation window 100 is kept open. As described above, when the ventilation window 100 is completely opened at 120 degrees, the spring 17 is freed.

In order to close the ventilation window 100 again, the motor 6 may be reversely rotated, and the process of closing the ventilation window 100 will be described with reference to FIG. 5 as follows.

In the state in which the ventilation window 100 as shown in FIG. 5 is completely open, the tubular rack gear 8 is always in contact with the male screw 10 end of the screw gear 12 by its own weight. At this time, if the motor 6 is rotated in reverse, the tubular rack gear 8 naturally descends, and the female screw 9 and the male screw 10 are engaged, and then the tubular rack gear 8 is made to engage with the ventilation window 100. ) Is closed. The ventilation window 100 is closed as shown in FIG. 4.

By the opening and closing device 200 of the present invention as described above it is possible to protect the property and life from the ventilation window 100 and other disasters from the sensor burnout, a comfortable indoor environment is achieved.

In this way, the present invention has an opening and closing device equipped with a mechanical safety device in preparation for the burnout of the sensor required for electrical control of the ventilation window 100, and the damage of the ventilation window 100 and the motor 6, as well as a fire. There is an effect that can prevent disasters, and has a structure that is opened and closed 120 degrees, it is effective to create a comfortable indoor environment by ventilation by natural convection using the temperature difference of the indoor and outdoor air.

Claims (3)

An opening and closing device (200) for opening and closing the ventilation window 100 by rotating the opening and closing rod (4) connected to the knuckle (3) of the window frame (2) installed in the housing (1) and the drive shaft (5) connected thereto, the screw gear By the forward and reverse rotation of the 12, the tubular rack gear 8 in which the rack gear 13 is formed is moved up and down, and the drive gear 14 of the drive shaft 5 engaged thereto rotates so that the drive shaft 5 is rotated and the drive shaft ( In the opening and closing device 200 of the ventilation window for opening and closing the ventilation window 100 by the opening and closing rod 4 connected to 5), the screw gear 12 has a male screw 10 is formed only in a portion of the upper end, The tubular rack gear (8) has a female screw (9) formed only at a predetermined portion of the lower end of the tubular rack gear (8), and the spring (17) is inserted into the vertically screwed screw gear (12) with the male screw (10) part positioned at an upper side thereof. 11) and the tubular rack gear 8 is extrapolated to the screw gear 12 so as to contact the upper end of the spring 17 thereof. That the ventilation flatulence two-stage switching apparatus according to claim. 2. The ventilation window of claim 1, wherein the opening and closing apparatus 200 is primarily controlled at an opening angle of 45 degrees with a sensor and secondly controlled at 120 degrees with a sensor and a mechanical structure. 2-stage switchgear. According to claim 1, Ventilation window 100 is fixed to the housing (1) and placed on the window frame (2) to prevent the folding film 18 is installed to prevent the space between the upper packing 19 and the lower packing (20). Ventilation two-stage switching device for ventilation.