KR101114886B1 - Ventilating apparatus for window - Google Patents

Abstract

The present invention relates to a ventilation ventilation apparatus for windows and doors, and to improve the assembly and condensation prevention of the ventilation opening and closing structure, and to be used in common even if the windows and glass parts have different thicknesses.
The present invention for achieving this object, the opening and closing flap is installed to select the opening and closing of the air passage, the ventilation opening and closing structure is installed between the window and the glass portion so that the opening and closing flap and the opening and closing of the ventilation opening and closing structure In the ventilation ventilation apparatus for a window and door comprising an end cap which is assembled at both ends and provided with a lever for operating the opening and closing flap, the ventilation opening and closing structure, the inner and outer frame portion and the opening and closing flap in the upper and lower portions of the ventilation portion is formed A coupling body portion formed to be coupled to the upper and lower coupling portions, an inner frame portion formed to be coupled to the inner side of the coupling body portion and having a grill cover assembled to the inner upper and lower frames so as to cover the ventilation holes, and an upper and lower coupling portion of the coupling body portion; The outer frame part is assembled with the insect screen member in the outer air passage of the outer upper and lower frame coupled to the outside And, it characterized in that it comprises a spacer assembled to the inner and outer frame portion to be used in common in the window portion and the glass portion formed in various thicknesses.

Description

Ventilation ventilator for windows and doors {VENTILATING APPARATUS FOR WINDOW}

The present invention relates to a ventilation ventilation apparatus for windows and doors, and more particularly, to improve the assemblability and prevention of dew condensation of the ventilation opening and closing structure, and to change the thickness of windows and glass parts formed in various thicknesses. The present invention relates to a ventilation ventilator for windows and doors.

In various buildings, the window has a function of ventilating indoor air as one of its functions. If the living room is closed for a long time while the window is closed, indoor air is contaminated, and this contaminated indoor air causes a lot of diseases to the human body.

In particular, various dusts and microorganisms in contaminated air cause respiratory diseases and allergies, and various contaminants generated from building materials in the room, such as formaldehyde, volatile organics, and asbestos powder, can cause headaches, coughs and itching. This can lead to dizziness, fatigue, poor concentration, and even cause heart disease and cancer.

Therefore, it is necessary to prevent the accumulation of dust, microorganisms, various contaminants, etc. in the room by allowing the indoor air to be ventilated with the clean air outside.

As a method of ventilating indoor air, there is a method of forcibly venting by a fan, but in the case of a house, it is not preferable due to noise and maintenance costs. Therefore, recently, the ventilation apparatus using natural ventilation attracts attention.

As a device for performing such natural ventilation, "ventilation device for window frames" of Korean Utility Model Registration No. 20-0436719 and "ventilation opening and closing device for windows" of 20-0440195 have been proposed. The prior art is to form an air passage that is opened and closed by the opening and closing flap on the window frame so that the fresh air from the outside is introduced into the room.

However, the above-described window ventilation apparatus comprises a ventilation opening and closing structure in which an opening and closing flap for adjusting the ventilation amount of outdoor air is provided with a plurality of parts. In addition, the ventilation opening and closing structure uses a heat insulating material for preventing condensation as a separate component.

Accordingly, there is a problem in that the assembly of the ventilation opening and closing structure is bad and the insulation material for preventing condensation must be used separately, thereby increasing the cost of assembly and manufacturing costs.

In addition, the ventilation opening and closing structure is made of a combination of many parts, there is a problem that the productivity is reduced due to the increase in the number of assembling.

In addition, the insect screen may be deformed because it is directly exposed to the outside wind speed, there is a problem that the noise is generated by the assembly tolerance.

In addition, the ventilation opening and closing structure, when the thickness of the window portion and the glass portion is changed, the ventilation opening and closing structure is not available or there is a problem in that the finishing work with silicon after filling the gap in the gap.

The present invention has been proposed to solve the above problems of the prior art, an object of the present invention is to ensure that the ventilation opening and closing structure is assembled in a structure that can withstand typhoons and also maintains strength.

Another object of the present invention is to simplify the assembly of the parts corresponding to the inside and outside of the ventilation opening and closing structure to efficiently perform the assembly and installation work.

Another object of the present invention is to reduce the manufacturing cost by reducing the parts of the ventilation opening and closing structure.

Still another object of the present invention is to prevent the condensation phenomenon by manufacturing the coupling body portion of the ventilation opening and closing structure with a heat insulating material.

Still another object of the present invention is to allow the ventilation opening and closing structure to be used in common by using a spacer regardless of the thicknesses of the windows and glass portions formed in various thicknesses.

Still another object of the present invention is to expand the cross-sectional area through which air passes by bending the mesh portion while firmly fixing the mesh portion of the insect screen member with a mesh reinforcing frame.

In order to achieve the above object, the present invention, the opening and closing flap which is installed to select the opening and closing of the air passage, and the ventilation opening and closing structure which is installed between the window and the glass portion to open and close the opening and closing flap, and the ventilation In the ventilation ventilator for windows and doors comprising an end cap that is assembled to both ends of the opening and closing structure and the lever for operating the opening and closing flap, the ventilation opening and closing structure, the coupling body portion is formed to be coupled to the upper and lower portions of the ventilation openings And an inner frame portion formed to be coupled to the inner side of the coupling body portion, an outer frame portion formed to be coupled to the outer side of the coupling body portion, and the windows and glass portions formed in various thicknesses to be used in common. It characterized in that it comprises a spacer assembled to the inner and outer frame portion.

The coupling body portion, the ventilation portion is formed vents, the upper coupling portion is formed so that the inner and outer frame portion and the opening and closing flap is coupled to the upper portion of the ventilation portion, the lower coupling is formed so that the inner and outer frame portion is coupled to the lower portion of the ventilation portion It is characterized by including a wealth.

The ventilation part may include a ventilation hole formed with a plurality of holes so that the outside air flows into the room, and a soft part formed to closely contact the opening and closing flap on the outer bottom surface of the ventilation hole.

The upper coupling portion may include a first rib insertion groove and a coupling protrusion formed at an inner frame to be coupled to an upper portion, and an upper insertion groove and outer upper coupling groove formed to be coupled to an outer frame at an upper side of the first rib insertion groove. And a hinge groove formed to couple the opening flap to the bottom of the first rib insertion groove and the coupling protrusion.

The lower coupling part may include a second rib insertion groove formed to engage an inner frame, and a fourth rib insertion groove and a lower insertion groove formed to couple an outer frame to the other side of the second rib insertion groove. do.

The inner frame portion, the inner upper frame is coupled to the inner side of the upper coupling portion of the coupling body portion, the inner lower frame is coupled to the inner side of the lower coupling portion of the coupling body, and is assembled to cover the ventilation openings by the inner upper and lower frames Characterized in that it comprises a grill cover.

The inner upper frame may include a plurality of first rib parts formed on side surfaces to be coupled to an inner upper portion of the upper coupling part, and an inner upper spacer groove formed on a rear surface of the first rib part to correct a gap between the window part and a spacer. And, characterized in that it comprises a groove groove portion and the upper assembly groove formed on the bottom surface extending from the side.

The inner lower frame may include a plurality of second rib portions formed to be coupled to the inner lower portion of the lower coupling portion, a cover lower protrusion formed to assemble a grill cover on the lower outer side of the second rib portion, and the lower protrusion of the cover. And an inner lower spacer groove formed on the lower inner side so as to correct a gap with the glass part with a spacer.

The grill cover includes a grill unit formed to allow air to pass therethrough, an assembly protrusion formed to be coupled to an inner upper and lower frames at the top and bottom surfaces of the grill unit, and a filter insertion groove formed at an inner side of the assembly protrusions. Characterized in that.

The outer frame portion, the outer upper frame is coupled to the outer coupling portion outside the coupling body portion, the outer lower frame coupled to the outer coupling portion outside the coupling body portion, the outer air passage formed by the combination of the outer upper and lower frames are assembled It characterized in that it comprises a insect screen member.

The outer upper frame may include a third rib portion formed to be coupled to an outer upper portion of the upper coupling portion, an upper protrusion formed to be coupled to an upper insertion groove of the coupling body portion under the third rib portion, and a rear surface of the third rib portion. An outer upper spacer groove formed so as to correct a gap with the window portion with a spacer, and an upper mesh insert formed so that an insect screen member can be inserted into an inner lower end of an outer upper cover surface covering the outer upper part from the upper protrusion. It characterized in that it comprises a groove.

The outer lower frame may include a fourth rib portion formed to be coupled to an outer lower portion of the lower coupling portion and an insect screen member coupled thereto, a lower protrusion formed downward on one side of the fourth rib portion, and extended outwardly from the lower protrusion. It characterized in that it comprises a lower net insertion groove, and an outer lower spacer groove formed in the inner side of the outer lower cover surface downward from the lower net insertion groove.

The insect screen member is a mesh reinforcement that is formed between the bent end portion is formed at both ends to be inserted into the upper and lower net insertion groove and is formed in a predetermined shape so that the outside air passes through, and the net reinforcement is inserted between the upper and lower net insertion grooves to support the network It characterized in that it comprises a frame.

The reinforcing frame is a support plate formed on both sides of the mesh assembly groove so that the edge of the mesh portion can be inserted and provided with reinforcing ribs on one side, and a hook formed to be caught in the upper and lower insertion grooves at each end of the support plate. Roof tile, characterized in that it comprises a support formed to be inserted into the outer lower frame on the other side of the support plate.

The spacer may include an insertion protrusion formed to be assembled to the spacer grooves, and a correction part formed to have a predetermined thickness so as to form the insertion protrusion at one side and fill a gap formed in the window portion and the glass portion. do.

According to the present invention, the ventilation opening and closing structure is assembled into a structure that can withstand typhoons, and there is an effect of maintaining the strength.

In addition, assembling of parts corresponding to the inside and the outside of the ventilation opening and closing structure can be simplified, and the assembly and work can be efficiently performed.

In addition, it is possible to reduce the manufacturing cost by reducing the number of parts of the ventilation opening and closing structure.

In addition, by manufacturing the coupling body portion of the ventilation opening and closing structure with a heat insulating material, there is an effect that can effectively prevent the condensation phenomenon.

In addition, even if the thickness of the window portion and the glass portion is different, there is an effect that can facilitate the installation and finishing work by using the spacer in common.

In addition, by firmly fixing the mesh to the ventilation opening and closing structure with a mesh reinforcement frame, there is an effect that can prevent the flow noise.

In addition, by forming the mesh portion of the insect screen member, there is an effect to enlarge the cross-sectional area through which the air passes to improve the air permeability.

In addition, since the coupling body portion as a heat insulating material, there is no need to use a conventional expensive heat insulating material, thereby greatly reducing the manufacturing cost.

1 is a partially exploded perspective view showing a window ventilation ventilation apparatus according to an embodiment of the present invention.
Fig. 2 is a partial perspective view showing the window ventilation ventilator shown in Fig. 1.
3 is a perspective view of the engaging body portion shown in FIG.
4 is a perspective view showing the inner frame portion shown in FIG.
FIG. 5 is a perspective view of the outer frame part shown in FIG. 2; FIG.
FIG. 6 is a side cross-sectional view of AA of FIG. 1. FIG.
Fig. 7 is a side sectional view showing the opening state of the opening and closing flap shown in Fig. 6;

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

Prior to describing the features of the window ventilation ventilation apparatus according to the present invention, a general structure of the window ventilation ventilation apparatus will be described.

As shown in FIGS. 1 and 2, the window ventilation ventilator 2 includes an opening and closing flap 6 installed to select opening and closing of an air passage, and the opening and closing flap 6 to open and close. A ventilation opening and closing structure 12 installed between the window portion 8 and the glass portion 10, and a lever 14, which is assembled at both ends of the ventilation opening and closing structure 12 and can operate the opening and closing flap 6 End cap 16 is installed.

Next, the features of the window ventilation ventilation apparatus according to the present invention will be described in detail with reference to FIG.

The ventilation opening and closing structure 12, as shown in Figure 2 and 3, has a coupling body portion 20 is formed to be coupled to the upper and lower portions of the ventilation openings (21). The coupling body portion 20 is provided with a ventilation portion 22 in which a plurality of ventilation holes 21 are arranged in a line.

The vent 22 is formed with a plurality of vents 21 so that the outside air flows into the room. In addition, a soft portion 25 is formed on the outer lower end surface of the vent 21 so that the opening / closing flap 6 may be in close contact. The soft part 25 is formed by double extrusion using one of materials such as P.V.C, soft resin, synthetic rubber, and the like.

The coupling body portion 20, the upper coupling portion 23 is formed so that the inner and outer frame portion 30, 40 and the opening and closing flap 6 is coupled to the upper portion of the ventilation portion (22).

The upper coupling portion 23 is formed with a first rib insertion groove 26 and a coupling protrusion 27 so that the inner frame 30 is coupled to the upper portion.

In addition, the other side of the first rib insertion groove 26, the upper insertion groove 28 and the outer upper coupling groove 29 is formed so that the outer frame 40 is coupled to the upper portion. In addition, a hinge groove 23H is formed at the bottom of the first rib insertion groove 26 and the coupling protrusion 27 so that the opening and closing flap 6 is coupled thereto.

In addition, the coupling body portion 20, the lower coupling portion 24 is formed so that the inner and outer frame portion 30, 40 is coupled to the lower portion of the ventilation portion (22).

The lower coupling portion 24 is formed with a second rib insertion groove 24H such that the inner frame 30 is coupled thereto. On the other side of the second rib insertion groove 24H, a fourth rib insertion groove 29H and a lower insertion groove 28H are formed to allow the outer frame 40 to be coupled thereto.

In addition, the ventilation opening and closing structure 12, as shown in Figure 4, the inner frame portion 30 is formed to be coupled to the inside of the coupling body portion 20. The inner frame part 30 is provided with an inner upper frame 31 coupled to the inner side of the upper coupling part 23 of the coupling body part 20.

The inner upper frame 31 is formed with a plurality of first ribs 34 on the side to be coupled to the inner upper portion of the upper coupling portion 23. In addition, an inner upper spacer groove 35 is formed on the rear surface of the first rib part 34 so as to interpose the spacer 50. In addition, a plurality of groove grooves 36 and upper assembly grooves 37 are formed on a bottom surface extending from the side surface.

In addition, the inner frame portion 30, the inner lower frame 32 is coupled to the inner side of the lower coupling portion 24 of the coupling body portion 20 is provided.

A plurality of second ribs 38 are formed in the inner lower frame 32 so as to be coupled to an inner lower portion of the lower coupling portion 24. On the lower outer side of the second rib portion 38, a cover lower protrusion 39 is formed so that the grill cover 33 can be assembled. In addition, an inner lower spacer groove 32H is formed in the lower inner side of the cover lower protrusion 39 so as to correct the gap with the glass part with the spacer 50.

In addition, the inner frame part 30 is provided with a grill cover 33 which is assembled to cover the ventilation holes 21 by the inner upper and lower frames 31 and 32.

The grill cover 33 is provided with a grill portion 33G to allow air to pass therethrough. In addition, upper and lower rear surfaces of the grill part 33G, assembly protrusions 33R are formed to be coupled to the inner upper and lower frames 31 and 32. In addition, a filter insertion groove 33F is formed at the inner side facing the assembly protrusions 33R to insert the filter.

In addition, the ventilation opening and closing structure 12, as shown in Figure 5, the outer frame portion 40 is formed to be coupled to the outside of the coupling body portion 20. The outer frame portion 40 has an outer upper frame 41 that is coupled to the outer side of the upper coupling portion 23 of the coupling body portion 20.

The outer upper frame 41, a plurality of third rib portion 44 is formed to be coupled to the outer upper portion of the upper coupling portion 23. In addition, an upper protrusion 45 coupled to the upper insertion groove 28 of the coupling body 20 is formed below the third rib portion 44. In addition, an outer upper spacer groove 46 is formed on the rear surface of the third rib portion 44 so as to correct the gap with the window portion with the spacer 50.

In addition, the upper net insertion groove 48 is formed at the inner lower end of the outer upper cover surface 47 covering the outer upper part of the upper protrusion 45 so as to insert the insect screen member 43.

The outer frame part 40 is provided with an outer lower frame 42 which is coupled to the outer side of the lower coupling part 24 of the coupling body part 20.

The outer lower frame 42 is formed to be coupled to the outer lower portion of the lower coupling portion 24 and the fourth rib portion 44R to which the insect screen member 43 is coupled is formed. The support ribs 49 are formed in the fourth rib portion 44R so that the insect screen member 43 can be easily caught.

In addition, at one side of the fourth rib 44R, a lower protrusion 45T is formed downward to be coupled to the lower insertion groove 28H of the coupling body 20. In the portion extending outwardly from the lower protrusion 45T, a lower net insertion groove 48H into which the insect screen member 43 is inserted is formed.

In addition, an inner lower spacer groove 46H is formed inside the outer lower cover surface 47P which is downward from the lower net insertion groove 48H so that the spacer 50 to be described later may be assembled.

In the outer frame portion 40, the insect screen member 43 is provided in the outside air passage formed by the combination of the outer upper and lower frames 41 and 42.

The insect screen member 43 has a bent end portion 43B formed at both ends so as to be inserted into the net insertion upper and lower grooves 48 and 48H so that a lot of outside air can pass through the middle by expanding the cross section. Is formed.

The mesh reinforcement frame 60 interposed between the mesh portions 43F is inserted into the mesh insertion upper and lower grooves 48 and 48H so as to support the mesh portion 43F.

The mesh reinforcing frame 60, the support plate 63 is formed on both sides of the network assembly groove 61 so that the edge of the mesh portion 43F can be inserted. The support plate 63 is provided with a reinforcing rib 62 on one side.

At each end of the support plate 63, a locking projection 64 is formed so as to be caught by the upper and lower insertion grooves 48 and 48H. In addition, the support 65 is formed on the other side of the support plate 63 to be inserted into the outer lower frame 42.

The ventilation opening and closing structure 12 uses the spacer 50 in common, even if the thickness of the window portion and the glass portion is different from the inner and outer frame portions 30 and 40 coupled to the upper and lower portions of the coupling body portion 20. By doing so, installation and finishing can be performed.

As shown in FIGS. 6 and 7, the spacer 50 is provided with an insertion protrusion 51 to be assembled to the spacer grooves. On one side of the insertion protrusion 51, a correction portion 52 which is commonly used to fill the gap between the window portion and the glass portion is formed to a predetermined thickness.

Such a spacer 50 is used when the window portion side thickness is larger than the width between the inner and outer upper frames 31 and 41 of the ventilation opening and closing structure 12, as shown in FIG. Thereby, the assembling work of the ventilation opening / closing structure 12 on the window part side can be precisely performed.

In addition, as shown in FIG. 7, the spacer 50 is used when it is smaller than the width between the inner and outer lower frames 32 and 42 when the glass part side thickness is thin. As a result, the assembling work of the ventilation opening and closing structure 12 on the glass portion side can be precisely performed.

As described above, even when the thickness of the window portion and the glass portion is changed, the use of the spacer 50 allows the ventilation opening and closing structure 12 to be used in common, so that the finishing work can be quickly performed.

Hereinafter, the assembly process of the ventilation opening and closing structure 12 of the present invention made as described above.

First, the opening and closing flap 6 is coupled to the hinge groove 23H of the coupling body portion 20.

Then, the inner upper and lower frames 31 and 32 of the inner frame portion 30 are coupled to the first and second rib insertion grooves 26 and 24H of the coupling body portion 20. At this time, the inner upper and lower frames 31 and 32 are coupled using the first and second rib parts 34 and 38.

When the inner upper and lower frames 31 and 32 are coupled, the grill cover 33 is coupled using the upper assembly groove 37 and the lower protrusion 39 for the cover.

When the inner upper and lower frames 31 and 32 and the grill cover 33 are coupled to the inner side of the coupling body portion 20, the outer frame portion 40 is coupled to the outer side of the coupling body portion 20.

The outer upper frame 41 of the outer frame portion 40 is coupled to the upper pivot insertion groove 28 and the outer upper coupling groove 29 of the coupling body portion 20.

The outer upper frame 41 is coupled using the third rib portion 44 and the pivot protrusion 45.

In addition, the outer lower frame 42 of the outer frame part 40 is coupled to the lower insertion groove 28H and the fourth rib insertion groove 29H.

The outer lower frame 42 is coupled using the fourth rib 44R and the lower protrusion 45T.

In addition, an insect repellent net member 43 which blocks insects, foreign matters, and the like introduced into the outside air is assembled in the outside air passage formed between the outer upper cover surface 47 and the outer lower cover surface 47P.

The insect screen member 43 is assembled by inserting the mesh portion 43F into the upper and lower mesh insertion grooves 48 and 48H by using the bent end portion 43B. The mesh reinforcing frame 60 caught by the locking projections 64 in the upper and lower mesh insertion grooves 48 and 48H allows the mesh portion 43F to be supported by an external strong wind speed.

As described above, when the inner and outer frame parts 30 and 40 are coupled to the inside and the outside of the coupling body part 20, the upper spacer groove ( The spacer 50 is assembled using the insertion protrusion 51 into any one of the 35 and 46 and the lower spacer grooves 32H and 46H.

Thereby, the correction part 52 of the said spacer 50 is closely attached to either surface of a window part and a glass part side.

The spacer 50 allows the assembly of the ventilation opening and closing structure 12 with respect to the windows and glass portions formed in various thicknesses, and can be used in common without changing the design.

As described above, when the assembly of the ventilation opening and closing structure 12 is completed, the end cap 16 and the lever 14 are assembled at both ends. The lever 14 is assembled at the final stage of the window ventilator.

As described above, when the window ventilation apparatus is installed, the lever 14 can be operated.

Next, the operation of the ventilation ventilator provided between the window portion and the glass portion will be described.

When ventilating the contaminated air in the room, the lever 12 is pulled down to the on position, and the opening / closing flap 6 opens the vent 21. Accordingly, the outside air passes through the insect screen member 43 and enters the room in a state where fine dust and foreign matter have been removed to ventilate the room.

When the ventilation of the room is completed, the lever 14 is raised to the off position so that the opening / closing flap 6 blocks the ventilation holes 21. At this time, the opening and closing flap 6 is in close contact with the soft portion 25 to accurately block the ventilation holes 21.

As the opening and closing flap 6 blocks the air vent 21, the outside air does not flow into the room.

In addition, the lever 14 can be operated to be positioned in the middle of the on-off. At this time, the opening-closing flap 6 does not open altogether and maintains an intermediate opening amount.

The ventilation opening / closing structure 12 of the ventilation apparatus for windows and doors which uses the said engaging body part 20 as a heat insulating material can prevent the dew condensation easily.

The present invention improves the assembly and condensation prevention through the reduction of the number of parts for the ventilation opening and closing structure of the window ventilation ventilation device, and common use of the ventilation opening and closing structure to the windows and glass parts formed in various thicknesses without the design change It can be used as a natural, it can be widely used in the natural ventilation industry.

4: opening and closing flap 12: ventilation opening and closing structure
20; Body 22: Ventilation
23, 24: upper and lower coupling portion 30: inner frame portion
31,32: upper and lower inner frame 33: grill cover
40: outer frame part 41, 42: outer upper and lower frames
43: insect screen member 43F: mesh part
60: reinforcement frame 50: spacer
51: insertion protrusion 52: correction unit

Claims (7)

Opening flap 6 is provided to select the opening and closing of the air passage, and the ventilation opening and closing structure 12 is provided between the window portion 8 and the glass portion 10 so that the opening and closing flap 6 can be opened and closed operation. And an end cap (16) mounted at both ends of the ventilation opening and closing structure (12) and provided with a lever (14) capable of operating the opening and closing flap (6).
The ventilation opening and closing structure 12,
Coupling body portion is formed so that the inner and outer frame portion 30, 40 and the opening and closing flap 6 is coupled to the upper and lower coupling portions 23, 24 at the upper and lower portions of the ventilation portion 22, the ventilation openings 21 are formed ( 20) with,
An inner frame part 30 that is formed to be coupled to the inner side of the coupling body part 20 and to which the grill cover 33 is assembled to the inner upper and lower frames 31 and 32 so as to cover the ventilation holes 21;
An outer frame portion 40 to which the insect screen member 43 is assembled in the outer air passage of the outer upper and lower frames 41 and 42 coupled to the outer upper and lower coupling portions 23 and 24 of the coupling body portion 20;
Ventilation ventilation for windows and doors, characterized in that it comprises a spacer (50) which is assembled to the inner and outer frame parts (30) (40) to be used in common in the windows and glass parts formed in various thicknesses. The method of claim 1,
The ventilation portion 22,
Windows and doors characterized in that it comprises a vent hole 21 is formed with a number of holes so that the outside air flows into the room, and the opening and closing flap 6 is in close contact with the outer lower end surface of the vent hole 21 Ventilation ventilation system. The method of claim 1,
The inner and outer upper and lower frames 31, 32, 41, 42 are
Inner and outer upper spacer grooves 35 and 46 formed by being coupled to the upper coupling portion 23 by the first and third rib parts 34 and 44,
Ventilation ventilation for windows and doors, characterized in that it comprises an inner and outer lower spacer groove (32H) (46H) formed by being coupled to the lower coupling portion (24) by the second, fourth rib (38) (44R). The method of claim 1,
The insect screen member 43,
A bent end portion 43B formed at both ends to be inserted into the net insertion upper and lower grooves 48 and 48H, and a net portion 43F formed in a predetermined shape to allow outside air to pass therethrough;
And a reinforcement frame (60) interposed between the mesh portions (43F) to be inserted into the mesh insertion upper and lower grooves (48) (48H) and to support the mesh portion (43F). The method of claim 4, wherein
The reinforcing frame 60,
The support plate 63 is formed on both sides so that the edge of the mesh portion 43F can be inserted, and the support plate 63 has reinforcing ribs 62 on one side thereof, and upper and lower portions of the support plate 63 at each end of the support plate 63. And a support protrusion 65 formed to be inserted into the insertion grooves 48 and 48H and inserted into the outer lower frame 42 on the other side of the support plate 63. Ventilation ventilation system for windows and doors. The method of claim 4, wherein
The net portion 43F is a window ventilation ventilation apparatus, characterized in that the upper and lower ends are bent at a predetermined angle with respect to the middle horizontal line to extend the cross-sectional area through which the outside air passes. The method of claim 1,
The spacer 50,
An insertion protrusion (51) formed so as to be assembled in the spacer grooves, and a ventilation unit for a window, characterized in that it comprises a correction portion (52) formed in a predetermined thickness on the insertion protrusion (51).

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