CN111155893B

CN111155893B - An energy-saving exterior casement window with safety guardrail and mosquito-proof function

Info

Publication number: CN111155893B
Application number: CN202010199737.6A
Authority: CN
Inventors: 蔡文君; 蔡卧斌
Original assignee: Hunan Mengtong Curtain Wall Doors And Windows Co ltd
Current assignee: Hunan Mengtong Curtain Wall Doors And Windows Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2025-03-11
Anticipated expiration: 2040-03-20
Also published as: CN111155893A

Abstract

The invention relates to an energy-saving building external casement window with a safety guardrail and a mosquito-proof function, which comprises a door window frame, a door window sash and a guardrail, wherein one end of the door window sash is hinged with one side of the door window frame, a detachable invisible screen window is arranged on the door window frame, the invisible screen window comprises a screen net, a screen sash handle and a winding drum which are respectively arranged on the left side and the right side of the screen net, and slide chains respectively arranged on the upper side and the lower side of the screen net, slide rails corresponding to the slide chains are respectively arranged on the inner sides of the upper side and the lower side of the door window frame, and locking strips are arranged at the end parts of the screen sash handle and are matched with strip-shaped pieces arranged on the middle stile to carry out elastic locking. The invention has the characteristics of mosquito prevention, falling prevention, glass internally installed and low cost.

Description

Building energy-saving outward casement window with safety barrier and mosquito-proof function

Technical Field

The invention relates to an energy-saving heat-insulating external casement window for a building, in particular to a structure that a detachable invisible mosquito-proof screen window, a detachable anti-falling guardrail and a lower fixed window are arranged at an opening part, and the guardrail can be installed.

Background

The building energy-saving external casement window used in the existing engineering field has no other functions such as mosquito prevention, child falling prevention at the opening part and guard bar prevention at the fixing window except for the opening, closing and energy saving functions of the door and window.

In order to meet completion acceptance standards specified by residence design standards (GB 50096-2011), the existing energy-saving casement window for the building can be subjected to completion acceptance only by additionally installing a zinc steel protective railing, the indoor space is occupied after the zinc steel protective railing is additionally installed, the hollow glass of the outer casement window is generally installed outdoors, hidden hazards of safety of constructors and risk of falling off the building are existing, the hollow glass can be installed by adopting a conversion frame, and the cost of an aluminum alloy door and window is remarkably increased.

Because of the problems and the design defects, most developers deliver the house to the owners through completion and acceptance, the owners begin to detach the old window and change the new window after receiving the house exchange key because the doors and windows installed by the developers do not have the functions, and the zinc steel protective railing which is not attractive and occupies the indoor space is detached. The door and window system is required to be replaced by a system door and window with a mosquito-proof screen window or a child-proof guardrail, which is required to be personalized besides the ventilation function of the opening window. The aluminum profile is required to be wide in series (width of cross section) in order to realize the mosquito-proof screen window and the child anti-falling guardrail, and the specification of the common system window is at least 90 mm-145 mm series or the requirement of a larger range of dimensions, so that the functions can be realized. Therefore, the cost of the doors and windows of the system is generally high, generally between 800 and 1800 yuan/square meter, and the doors and windows of the system are difficult to bear by common families, particularly by payroll families.

Disclosure of Invention

The invention aims to improve and innovate the defects and problems existing in the background technology, and provides a building energy-saving outer side-hung door and window structure which has the advantages of mosquito resistance, falling resistance, glass embedability and low cost.

The technical scheme of the invention is to construct an energy-saving building external-hinged window with safety guardrails and mosquito-proof functions, which comprises a door and window frame, a door and window sash and guardrails, wherein one end of the door and window sash is hinged with one side of the door and window frame, a detachable invisible screen window is arranged on the door and window frame, the invisible screen window comprises a screen, screen sash handles and reels respectively arranged at the left side and the right side of the screen, slide chains respectively arranged at the upper side and the lower side of the screen, slide rails corresponding to the slide chains are respectively arranged at the inner sides of the upper side and the lower side of the door and window frame, handle seal heads corresponding to the slide rails are respectively arranged at the upper end and the lower end of the screen sash handles, the reels comprise a screen drum box, a shaft drum and two screen drum seal covers, the yarn cylinder sealing cover is arranged at two ends of the yarn cylinder box and is respectively provided with a fixed rotating shaft and a movable rotating shaft which are opposite to each other, a torsion spring sleeve member is arranged between the fixed rotating shaft and the movable rotating shaft, the shaft cylinder is sleeved outside the torsion spring sleeve member and is only fixed with one end of a torsion spring in the torsion spring sleeve member, the side surface of the yarn cylinder box is opened, the shaft cylinder is provided with at least one first clamping groove, one side of the yarn net is clamped in one of the first clamping grooves through a clamping adhesive tape, the end part of the movable rotating shaft is provided with a handle, the side surface of the end part is provided with a first limiting hole, and the yarn cylinder sealing cover connected with the movable rotating shaft is provided with a second limiting hole corresponding to the first limiting hole;

The yarn barrel box is characterized in that one side, opposite to the opening, of the yarn barrel box is connected with an outer frame clamping strip, the outer frame clamping strip is connected with a door and window frame, an inner frame clamping strip is further arranged on the door and window frame and positioned at the indoor side and in front of a yarn barrel sealing cover (positioned at the indoor side), a guide roller is arranged between the inner frame clamping strip and the shaft barrel, and the guide roller is positioned on an extension line of a moving track of a yarn fan handle;

the end parts of the inner frame clamping strips are connected with the guardrails through locking adhesive tapes;

the screen window is characterized in that the whole screen window handle is L-shaped, one side of the L-shaped screen window handle is a first handle, the other side of the L-shaped screen window handle is provided with a dent for forming a second handle, and one end of the second handle, which is far away from the first handle, is connected with a screen;

the sash frame and the glass of the door and window sash can be embedded between the door and window frame and the middle stile, and one side of the sash frame is provided with a limit strip;

The lock bar is arranged at the L-shaped corner of the screen window handle, the muntin opposite to the yarn barrel box is provided with a strip-shaped piece with a groove corresponding to the lock bar, and the lock bar can be elastically locked with the strip-shaped piece.

A latch lock is further arranged between the screen fan handle and the middle stile.

The locking adhesive tape is in an inverted splayed shape, the bottoms of the locking adhesive tape are closed, the inner sides of the two feet are provided with opposite first surrounding protrusions, the far end parts of the two feet are respectively provided with a second clamping groove which is concave inwards from outside, the inner frame clamping strip is provided with a storage groove which can accommodate the locking adhesive tape, the storage groove is provided with a second surrounding protrusion which clamps the second clamping groove, the guardrail is provided with a plug with an expanded end part, and the plug can be clamped in the locking adhesive tape by the first surrounding protrusions.

The connecting side of the inner frame clamping strip and the locking adhesive tape is connected with the door and window frame through a spring pin.

The handle seal head comprises a sliding block and a fixing pin inserted into the second handle, a sliding rail groove matched with the sliding rail is formed in the sliding block, a third clamping groove for accommodating the gauze is formed in one end of the sliding block, and a pin hole is formed in the sliding block and used for installing a bolt to fix the gauze in the third clamping groove.

The guard rail and the door and window frame or the muntin are connected through locking adhesive tapes.

The muntin on set up four-way section bar, the left side of four-way section bar sets up a pair of block tongue 49 left for be connected with muntin, four-way section bar upper portion sets up the storage tank that holds the locking adhesive tape, is used for connecting the guardrail, four-way section bar's right side sets up decurrent adhesive tape mounting groove for installing the sealed bread adhesive tape of AND gate casement, four-way section bar's bottom sets up the bar mounting groove to the right for install grooved bar, make it and fixed pin cooperation, fixed gauze casement handle.

One of the pair of clamping tongues of the four-way section bar is positioned at the upward extension part of the four-way section bar, and the frame of the guardrail is provided with a baffle plate with an arc-shaped bend, so that when a plug on the frame of the guardrail is downwards inserted into the storage groove, the baffle plate covers the edge of the muntin.

The section of the strip-shaped element 50 is in a shape that the positive E and the negative E are opposite and the bottoms are connected, two symmetrical barbs 54 pointing to the opening direction are arranged on the outer side of the strip-shaped element, the strip-shaped element mounting groove 51 is U-shaped, and barb grooves 55 matched with the barbs 54 are arranged on the inner sides of the two sides of the opening.

The gauze is a stainless steel gauze.

The invention has the advantages and beneficial effects that:

The invention can realize the multifunctional door and window with (1) invisible mosquito-proof window function, (2) open child falling-proof function, (3) fixed window guard rail function, with the obvious characteristics of assembly and disassembly, and the invisible mosquito-proof window screen and child falling-proof guard rail can be disassembled for convenient maintenance and fire-fighting rescue.

When the multifunctional door and window is adopted, because the fixed window guard rail rod and the door and window are integrated, a developer or a building party can check and accept completion without installing a zinc steel guard rail, the cost of the developer is saved, and the indoor space of the user is saved; the fire protection fence is detachable, when a fire disaster occurs, a fire fighter does not need to use a special window breaking tool, the fire fighter can push the fire fighter from outdoors to indoors, the child anti-falling fence can be opened to enter indoors for rescue, when hardware, a hinge and an invisible mosquito-proof window screen of an opening fan need to be replaced or overhauled, an adult can pull the fire fighter inwards by force to exceed the deformation limit value of a clamping adhesive tape of an ethylene-propylene-type adhesive tape, the protective fence can be detached, the detachable anti-falling fence is designed for adults, the fire fighter cannot be detached by the force of the child, and 3, the opening part is provided with an invisible window screen window, thereby solving the problem that the engineering window is opened by the invisible window screen of an embarrassing type screen window, and the invisible window screen window of the screen window cannot be used.

The invention can realize that the developer does not increase the cost, the user does not change the old window due to the single function of the door and window, the cost of the developer or the building unit is saved, and the cost of changing the window of the user is saved. The inner side of the frame of the guardrail and the inner side of the window frame are basically positioned on the same vertical plane, so that the guardrail is attractive and does not occupy indoor area.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment.

FIG. 2 is a cross-sectional view A-A of FIG. 1.

FIG. 3 is a section B-B of FIG. 1.

Fig. 4 is an exploded view of the invisible screen.

Fig. 5 shows the invisible screen window closing schematic diagram of the open state of the door and window fan.

Fig. 6 is a schematic view of the invisible screen in an open state (door and window sashes are not shown).

Fig. 7 is a schematic structural view of a four-way profile in an embodiment.

Fig. 8 is a schematic view of the mounting relationship of the bar of fig. 7 to the bar mounting groove.

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "disposed" on another element, it can be directly disposed or connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Example 1

As shown in fig. 1-6, the building energy-saving external flat-open window with the safety barrier and the mosquito-proof function comprises a door and window frame 1, door and window wings 2 and a guardrail 3, wherein one end of the door and window wing 2 is hinged with one side of the door and window frame 1 through a hinge, a detachable invisible screen window 4 is arranged on the door and window frame, the invisible screen window 4 comprises a screen 5 made of stainless steel, a screen window handle 6 and a winding drum 7 which are respectively arranged at the left side and the right side of the screen 5, slide chains 8 which are respectively arranged at the upper side and the lower side of the screen 5, sliding rails 9 corresponding to the slide chains 8 are respectively arranged at the inner sides of the upper side and the lower side of the door and window frame 1, sealing heads 10 corresponding to the sliding rails 9 are respectively arranged at the upper end and the lower end of the screen window frame 6, the winding drum 7 comprises a screen drum box 11, a shaft drum 12 and two screen drum sealing covers 13, the screen drum sealing covers 13 are respectively provided with a fixed rotating shaft 14 and a movable rotating shaft 43 which are opposite to each other, a torsion spring sleeve 44 is arranged between the fixed rotating shaft 14 and the movable rotating shaft 43, the shaft barrel 12 is sleeved outside the torsion spring sleeve 44 and is fixed with one end of a torsion spring 41 in the torsion spring sleeve 44, the side surface of the yarn barrel box 11 is opened, three first clamping grooves 15 are arranged on the shaft barrel 12, one side of the yarn net 5 is clamped in one of the first clamping grooves 15 through a clamping adhesive tape 46, a handle 17 is arranged at the end part of the movable rotating shaft 43, a first limiting hole 56 is arranged on the side surface of the end part, a second limiting hole corresponding to the first limiting hole 56 is arranged on a yarn barrel sealing cover 13 connected with the movable rotating shaft 43, when the handle 17 drives the movable rotating shaft 43 to rotate to align with the first limiting hole 56 and the second limiting hole, the first limiting hole 56 and the second limiting hole can be inserted and fixed by screws or cotters for adjusting the torsion force of the torsion spring 41, arrows indicating whether the first limiting hole and the second limiting hole are aligned or not can be further arranged on the movable rotating shaft 43 and the corresponding yarn cylinder sealing cover 13;

The side of the yarn barrel box 11, which is opposite to the opening, is connected with an outer frame clamping strip 18, the outer frame clamping strip 18 is connected with a door and window frame 1, an inner frame clamping strip 19 is further arranged on the door and window frame 1 and positioned at the indoor side and in front of the yarn barrel sealing cover 13 (positioned at the indoor side), a guide roller 45 is arranged between the inner frame clamping strip 19 and the shaft barrel 12, and the guide roller 45 is positioned on an extension line of a moving track of the yarn fan handle 6;

The end part of the inner frame clamping strip 19 is connected with the guardrail 3 through a locking adhesive tape 20;

the screen window catch 6 is L-shaped as a whole, one side of the L-shape is a first catch 22, the other side of the L-shape is provided with a dent forming a second catch 23, and one end of the second catch 23 far away from the first catch 22 is connected with the screen 5;

The lock bar 24 is arranged at the L-shaped corner of the screen handle 6, the muntin 25 opposite to the yarn barrel box 11 is provided with a strip-shaped piece 50 with a groove corresponding to the lock bar 24, and the lock bar 24 can be elastically locked with the strip-shaped piece 50. The sash frame and glass of the door and window sash 2 can be embedded between the door and window frame 1 and the muntin 25, and one side of the sash frame is provided with a limit strip 27.

The locking adhesive tape 20 is in an inverted splayed shape, the bottom is closed (the direction is taken as an example of a graph depicted in fig. 3, the installation direction is not limited in practical application), the inner sides of the two feet are provided with opposite first surrounding protrusions 28, the far ends of the two feet are respectively provided with a second clamping groove 29 which is concave inwards from outside, the inner frame clamping strip 19 is provided with a storage groove 30 which can accommodate the locking adhesive tape 20, the storage groove 30 is provided with a second surrounding protrusion 31 which is used for clamping the second clamping groove 29, the guardrail 3 is provided with a plug 32 with an enlarged end, and the plug 32 can be clamped in the locking adhesive tape 20 by the first surrounding protrusion 28.

The connecting side of the inner frame clamping strip 19 and the locking adhesive tape 20 is connected with the door and window frame 1 through a spring pin 33.

The handle seal head 10 comprises a sliding block 39 and a fixing pin 34 inserted into the second handle 23, a sliding rail groove 35 matched with the sliding rail 9 is formed in the sliding block 39, a third clamping groove 36 for accommodating the gauze 5 is formed in one end of the sliding block 39, and a pin hole 37 is formed in the sliding block for installing a bolt to fix the gauze 5 in the third clamping groove 36.

The guard rail 3 and the door and window frame 1 or the muntin 25 are connected through the locking adhesive tape 20.

As shown in fig. 7, the muntin 25 is provided with a four-way section bar 47, the left side of the four-way section bar 47 is provided with a pair of left clamping tongues 49 for connecting with the muntin 25, the upper part of the four-way section bar 47 is provided with a containing groove 30 for containing the locking adhesive tape 20 for connecting with the guardrail 3, the right side of the four-way section bar 47 is provided with a downward adhesive tape mounting groove 51 for mounting a bread adhesive tape 48 for sealing a door and a window sash, the bottom of the four-way section bar 47 is provided with a right strip mounting groove 52 for mounting a strip 50 with grooves, so that the strip 50 is matched with the fixing pin 24 to fix the handle 6 of the window sash. One of the pair of clamping tongues 49 of the four-way section bar 47 is positioned at the upward extension position of the four-way section bar 47, and the frame of the guardrail 3 is provided with a baffle plate 53 with an arc-shaped bend, so that when the plug 32 on the frame of the guardrail 3 is downwards inserted into the storage groove 30, the baffle plate 53 covers the edge of the muntin 25, and the baffle plate is positioned on the same plane with the window frame of the indoor surface, can form an angle of 45 degrees, and is attractive.

As shown in fig. 8, the section of the strip 50 is in a shape that the front E and the back E are opposite and the bottoms are connected, two symmetrical barbs 54 pointing to the opening direction are arranged on the outer side of the strip, the strip mounting groove 51 is in a U shape, and barb grooves 55 matched with the barbs 54 are arranged on the inner sides of two sides of the opening.

The invention aims at solving the technical problems that the energy-saving vertical hinged door and window (house built by developers or investors) of the building in the existing real estate building field is mainly used in the building engineering field, 50-80 series are generally adopted, aluminum door and window profiles between 50-80 series only realize the opening and closing functions of opening a fan due to the limitation of the section width, the anti-mosquito function is not realized, the opening fan part is not provided with the anti-falling function of children, the fixed window part is not provided with the protection railing function, the completion inspection and acceptance can be completed only by adding the zinc steel protection railing, the hollow glass is generally used in the outdoor installation process, the safety hazards such as personnel safety risk and glass falling building risk exist, and the hollow glass can be installed when the aluminum profile with a conversion frame is adopted, but the cost of the aluminum alloy door and window is obviously increased.

The inner side and the outer side of the frame material of the heat-insulating outer casement window are the same mold, and the outer side and the inner side of the frame material are the same mold, so that the design can reduce the aluminum mold of the main material, reduce the stock variety and improve the utilization rate of the aluminum material;

The width of the notch of the frame material, the muntin material and the sash material is designed into a hinge notch (K groove or C groove) with uniform size, so that the window is convenient to fix and the glass pressing line of the opening sash is universal, the glass pressing line aluminum profile mould is reduced, the inventory of glass pressing line varieties is reduced, and the utilization rate of the glass pressing line aluminum material is improved.

The design can also realize the universality of the main profile aluminum materials of the inward-opening window and the outward-opening window, namely the inward-opening window and the outward-opening window. The hollow glass can be internally installed without adding a conversion frame, and aluminum materials are saved.

The sliding mechanism (sliding rail, vertical frame, etc.) of the invisible screen window can be the same section bar, plastic sliding grooves are embedded in the sliding mechanism, upper and lower plastic handle seal heads with opposite directions are arranged at two ends of the handle, the seal heads are provided with blocking blocks, hidden yarns are limited to shrink to a proper position and then do not enter the yarn box, the plastic seal heads are assembled at two ends of the aluminum product of the handle to form a handle of the invisible screen window, and the plastic seal heads are provided with sliding blocks and small holes for fixing the gauze. The sliding block is used for moving in the upper and lower track slide ways to realize the stretching and shrinking of the screen window, and as the upper and lower handle seal head sliding block is inserted into the upper and lower slide way grooves and left or right hidden yarns are provided with locking strips, the screen can be wrinkle-proof, the wind can be prevented from blowing the screen open, the mosquito-proof purpose is achieved, and the sealing and the handle rebound prevention functions are also realized.

Under the shrinkage static state, the invisible screen window is blocked by the inner frame clamping strips, so that the invisible screen window cannot be used, and the first handle clamps the yarn barrel box at the moment to prevent the further retraction of the screen window handle. When the hidden yarn is used, the first handle is a traction handle, hidden yarns are gently pulled out, and after the hidden yarns are pulled to leave the exposed inner frame clamping strips, the second handle which is sunken is a normal handle.

The hidden gauze is connected with the gauze drum and the gauze fan handle by adopting the embedded type, so that the embarrassment that the hidden gauze in the current market can only adopt a nylon net and is adhered to the gauze drum by using a double-sided adhesive tape is solved.

The embodiments of the present invention are merely described in terms of preferred embodiments of the present invention, and are not intended to limit the spirit and scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solutions of the present invention should fall within the protection scope of the present invention, and the technical content of the present invention as claimed is fully described in the claims.

Claims

1. An energy-saving external casement window with safety guardrail and mosquito-proof functions, characterized in that it comprises a door and window frame, a door and window sash, and a guardrail, wherein one end of the door and window sash is hinged with one side of the door and window frame, and the door and window frame is provided with a detachable invisible screen window, the invisible screen window comprises a screen mesh, a screen fan handle and a reel respectively arranged on the left and right sides of the screen mesh, and a sliding chain respectively arranged on the upper and lower sides of the screen mesh, the inner sides of the upper and lower sides of the door and window frame are provided with slide rails corresponding to the sliding chain, and the upper and lower ends of the screen fan handle are respectively provided with handle heads corresponding to the slide rails, the reel comprises a yarn drum box, an axis drum and two yarn drum covers, the yarn drum covers are arranged at the two ends of the yarn drum box and are respectively provided with relative fixed rotating shafts and movable rotating shafts, a torsion spring kit is arranged between the fixed rotating shaft and the movable rotating shaft, the axis drum is sleeved outside the torsion spring kit and is only fixed to one end of the torsion spring in the torsion spring kit, the side opening of the yarn drum box, the axis drum At least one first clamping slot is provided on the top, and one side of the gauze net is clamped in one of the first clamping slots by a clamping rubber strip, and a rocking handle is provided at the end of the movable rotating shaft, and a first limiting hole is provided on the side of the end portion, and a yarn drum cover connected to the movable rotating shaft is provided with a second limiting hole corresponding to the first limiting hole; the yarn drum box is connected to an outer frame clamping strip on the side facing away from the opening, and the outer frame clamping strip is connected to the door and window frame. An inner frame clamping strip is also provided on the door and window frame, which is located on the indoor side and in front of the yarn drum cover, and a guide roller is provided between the inner frame clamping strip and the shaft cylinder, and the guide roller is located on the extension line of the movable trajectory of the gauze fan handle; the end of the inner frame clamping strip is connected to the guardrail through a locking rubber strip, and the guardrail is connected to the door and window frame or the middle mull by the locking rubber strip; the gauze fan handle is L-shaped as a whole, and one side of the L-shape is the first handle, and the other side is provided with a recess forming the second handle, and the end of the second handle away from the first handle is connected to the gauze net;

The sash frame and glass of the door and window sash can be embedded between the door and window frame and the middle stile, and a limit strip is arranged on one side of the sash frame; a locking strip is arranged at the L-shaped corner of the yarn fan handle, and a strip with a groove corresponding to the locking strip is arranged on the middle stile opposite to the yarn tube box, and the locking strip can be elastically locked with the strip; the locking rubber strip is in an inverted eight-shaped shape as a whole, with a closed bottom, and the inner sides of the two feet are provided with relative first encircling protrusions, and the ends of the two feet away from each other are respectively provided with second card grooves concave from the outside to the inside; a storage groove is arranged on the inner frame card strip to accommodate the locking rubber strip, and a second encircling protrusion that clamps the second card groove is arranged on the storage groove; a plug with a swollen end is arranged on the guardrail, and the plug can be clamped in the locking rubber strip by the first encirclement; the connecting side of the inner frame card strip and the locking rubber strip is connected to the door and window frame through a spring pin; the handle head includes a slider and a fixing pin inserted into the second handle, and the slider is provided with A slide rail groove cooperates with the slide rail, and one end of the slider is provided with a third slot for accommodating a screen, and a pin hole is provided for installing a latch to fix the screen in the third slot; the screen is a stainless steel screen; when the invisible screen window is in a retracted and static state, the screen fan handle is blocked by the inner frame strip and cannot be used. At this time, the first handle clamps the screen tube box to prevent the screen fan handle from further retracting; when in use, the first handle is a traction handle, which gently pulls out the hidden screen until it leaves the inner frame strip and exposes the inner frame strip. At this time, the recessed second handle is a normal handle; the frame material of the external casement window is the same mold for indoor and outdoor use, and the stile material is the same mold for indoor and outdoor use, which is universal for both inside and outside; the outer frame strip is clamped with the side surface of the frame material outside the door and window frame and then spirally fixed, the inner frame strip is clamped with the side surface of the frame material inside the door and window frame, one side of the sash frame contacts the outdoor side of the outer frame strip, and the other side of the sash frame contacts the outdoor outside of the middle stile.

2. The energy-saving exterior casement window with safety guardrail and mosquito-proof function of claim 1 is characterized in that: a four-way profile is arranged on the middle mullion, a pair of left-facing tongues are arranged on the left side of the four-way profile for connecting with the middle mullion, a storage groove for accommodating a locking rubber strip is arranged on the upper part of the four-way profile for connecting with the guardrail, a downward rubber strip installation groove is arranged on the right side of the four-way profile for installing a bread rubber strip for sealing with the door and window sashes, and a right-facing strip installation groove is arranged at the bottom of the four-way profile for installing a strip with a groove, so that it cooperates with a fixing pin to fix the screen sash handle.

3. The energy-saving exterior casement window with safety guardrail and mosquito-proof function according to claim 2 is characterized in that: one of the pair of latches of the four-way profile is located at the upward extension of the four-way profile, and an arc-shaped baffle is provided on the frame of the guardrail, so that when the plug on the frame of the guardrail is inserted downward into the storage slot, the baffle covers the edge of the middle wall.

4. The building energy-saving exterior casement window with safety guardrail and mosquito-proof function according to claim 2 is characterized in that:

The cross section of the strip is a shape of positive E and negative E facing each other and connected at the bottom, and two symmetrical barbs pointing to the opening direction are arranged on the outside. The strip installation groove is U-shaped, and barb grooves matching with the barbs are arranged on the inner sides of both sides of the opening.