CN219281562U

CN219281562U - Casement window

Info

Publication number: CN219281562U
Application number: CN202320726639.2U
Authority: CN
Inventors: 杨俊东
Original assignee: Shaoyang County Home And Windows Co ltd
Current assignee: Shaoyang County Home And Windows Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-06-30
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a casement window, which comprises an outer frame body arranged in a wall body, an inner frame body arranged in the outer frame body and glass arranged in the inner frame body, wherein the outer frame body is provided with a plurality of grooves; a slot is formed in the side, facing the indoor side, of the outer frame body, and a plurality of back-fastening platforms are arranged on the inner side of the slot; an external frame arranged on one side of the outer frame body facing the indoor; the device is arranged in the installation component between the outer frame body and the outer frame, the outer sealing band and the inner sealing band are detachable, the outer sealing band is used for filling the outer side crack between the outer frame body and the outer frame, the inner sealing band is used for filling the inner side, the outer sealing band is required to be installed in front, the outer sealing band is temporarily attached to the outer frame body through an adhesive tape, and then the outer frame is pressed through the outer frame. The window capable of being directly installed with the external frame without perforating an original window is achieved, and the external frame can be stably supported.

Description

Casement window

Technical Field

The utility model relates to a casement window, and belongs to the technical field of doors and windows.

Background

The casement window is mainly divided into a push-pull type window and an upper suspension type window, and has the advantages of large opening area, good ventilation, good sealing performance, excellent sound insulation, heat preservation and impermeability, and convenient inward opening window cleaning; the outward opening type opening does not occupy space.

Doors and windows of conventional floor houses sold in cities are generally decorated according to the same standard, but along with the development of aesthetic users, more households choose to re-decorate according to their own aesthetic, more beautiful external windows are basically arranged on the basis of original windows, the external windows are basically flat-open windows, the window frames are generally made of aluminum alloy materials with excellent performance, and the national standard thickness of the aluminum alloy materials is 1.8mm.

The existing mode of refitting the window during decoration is to practice thrift the cost, adopts the installation of individualized external frame on the basis of former window basically, and the installation of external frame usually will be with the installation strip welding or the bolt fastening that match with external frame on the window frame earlier, and the external frame of difference needs the installation strip that matches correspondingly. Although the welding mode is more firm, for changing when making things convenient for the fitment next time, can adopt the bolt to fix generally, and pass through the installation strip rather than matching with external frame, when installing on the window frame, the fixed holding power that is used for supporting external frame comes mainly from the bolt fixed point that installation strip and window frame are connected, because aluminum alloy window thickness is thinner, offer the regional steadiness of bolt fixed point on the aluminum alloy window limited, in long-term use, the fixed region of aluminum alloy window trompil leads to deformation because of the weight of external frame easily, and then causes the condition that the installation firmness reduces to appear.

Therefore, the design of the window which can be directly installed with the external frame without perforating the original window and can stably support the external frame, and the flat-open window which is not easy to deform is a research purpose of the utility model.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a casement window so as to solve the problems of the prior art.

In order to achieve the above object, the present utility model is realized by the following technical scheme:

a flat-open window comprises an outer frame body arranged in a wall body, an inner frame body arranged in the outer frame body, glass arranged in the inner frame body, and an external frame arranged on one side of the outer frame body facing an indoor side;

a slot is formed in the side, facing the indoor side, of the outer frame body, and a plurality of back-fastening platforms are arranged on the inner side of the slot;

the device has the installation component between frame body and the external frame, the installation component is including rotating the installation a plurality of soon of external frame one side connects the piece, soon connect the piece to include the joint piece, through rotatory soon connect the piece to cooperate with the fluting, will joint piece on the external frame corresponds to be installed in the back-up platform of frame body.

As a further improvement, the installation component is still including installing the outer sealing band of outer frame body towards indoor one side, and with the interior sealing band of outer sealing band medial surface laminating, the laminating face interval of outer sealing band and interior sealing band is provided with the storage tank, place in the storage tank and connect the piece soon.

As a further improvement, the storage groove is a closed surface on the side facing the indoor and is an open surface on the side far away from the indoor.

As a further improvement, the rotary connecting piece comprises a bottom plate, a connecting rod for connecting the bottom plate and the clamping piece and a penetrating hole penetrating through the clamping piece, the bottom plate and the connecting rod, wherein one end, far away from the clamping piece, of the penetrating hole is provided with a marking ring, and the marking ring is embedded on one side of the bottom plate.

As a further improvement, the clamping piece is in a circular arc structure towards one side of the bottom plate, the back-buckling platform comprises guide parts positioned at two sides of the back-buckling platform, and a locking part positioned between the two guide parts, and the clamping piece is guided to be abutted to the inner side surface of the locking part through the guide parts.

As a further improvement, a plurality of reinforcing steel wires are embedded in the clamping piece.

As a further improvement, the back-fastening platform comprises a first hooking part, wherein the first hooking part is positioned at the inner side of the locking part, and the opening direction of the first hooking part is far away from the slot;

the clamping piece is attached to one side of the locking part, a second hooking part is arranged on one side of the locking part, the opening direction of the second hooking part faces to the groove, and the first hooking part and the second hooking part are matched.

As a further improvement, the mounting assembly further comprises a traction belt connected with the same side ends of the plurality of bottom plates, and traction parts are arranged at two ends of the traction belt in an extending mode.

As a further improvement, the casement window further comprises an outer sash frame, wherein the outer sash frame is arranged on one side of the outer sash frame facing the indoor.

As a further improvement, the inner frame body is provided with a slot towards one indoor side, the outer side of the inner frame body is provided with a clamping part, and the inner side of the outer frame body is provided with a first clamping position and a second clamping position which are matched and installed with the clamping part.

The beneficial effects of the utility model are as follows:

according to the utility model, the outer frame body is arranged, the slot for installing the outer frame is directly formed in one side of the outer frame body, the plurality of rotary connecting pieces are rotatably installed on the outer frame body, and the rotary connecting pieces are matched with the back-buckling platforms uniformly arranged in the outer frame body, so that the outer frame body can be installed on the outer frame body through the rotary connecting pieces. The screwing piece is matched with the back-buckling platform on the grooving, so the external frame can be adapted to different external frames, the setting distance of the screwing piece can be shortened on one hand, the punching is not required to damage the rigidity strength of the external frame on the other hand, the punching is not required, the stress of the external frame is more uniformly dispersed in the area for fixing the external frame, the deformation is not easy to occur, and the installation firmness of the external frame can be fully ensured in long-term use.

According to the utility model, the outer sealing belt and the inner sealing belt attached to the inner side surface of the outer sealing belt are arranged, the attaching surface of the outer sealing belt and the inner sealing belt is provided with the storage groove at intervals, and the rotary connecting piece is placed in the storage groove. When the external frame is not installed, one half of the rotary connecting pieces can be correspondingly placed in the storage grooves of the outer sealing strips and the inner sealing strips respectively, wherein the storage grooves are equivalent to the rotary connecting pieces in number, the arrangement positions of the storage grooves are matched with those of the back-buckling platforms, the outer sealing strips and the inner sealing strips can form a fitting state through embedding of the rotary connecting pieces, and the fixed shielding sheet form is kept in a normal state.

According to the utility model, the bottom plate, the connecting rod for connecting the bottom plate and the clamping piece and the penetrating hole penetrating through the clamping piece, the bottom plate and the connecting rod are arranged, one end of the penetrating hole, which is far away from the clamping piece, is provided with the marking ring, and the marking ring is embedded on one side of the bottom plate. The rotary connecting pieces can be taken down one by one and turned over to reset and are arranged in the storage grooves of the outer sealing belt and the inner sealing belt in the face of different external frames, and the storage grooves are far away from the open face on one side of the room, so that the bottom plate provided with one end of the marking ring faces to the outer side.

The utility model discloses a back-buckling type back-buckling device, which is characterized in that a clamping piece can be better connected with a back-buckling platform, so that one side of the clamping piece, facing a bottom plate, is in a circular arc structure, the back-buckling platform comprises guide parts positioned at two sides of the back-buckling platform, and a locking part positioned between the two guide parts, and the clamping piece is guided to be abutted against the inner side surface of the locking part through the guide parts. The guide part and the locking part are connected smoothly, so that the clamping piece is higher in smoothness when passing through the guide part, and the clamping is not easy to happen. The clamping piece is smaller than the slotting width, and the length of the clamping piece is larger than the slotting width, so that the clamping piece can be inserted into the slotting and can be abutted in the locking part after rotating, and the clamping piece can be connected with the back-buckling platform more smoothly.

The utility model further improves the safety coefficient of the external frame which enables the external frame to bear larger weight, so that a plurality of reinforcing steel wires are embedded in the clamping piece.

In addition, the back-buckling platform comprises a first hooking part, the first hooking part is positioned at the inner side of the locking part, and the opening direction of the first hooking part is far away from the slot; the clamping piece is attached to one side of the locking part, a second hooking part is arranged on one side of the locking part, the opening direction of the second hooking part faces to the groove, and the first hooking part and the second hooking part are matched. When the outer frame body transits to bear and the clamping piece deforms or is locally broken, the first hooking part can be clamped on the second hooking part, so that the traction force can be further improved, the external frame can be prevented from suddenly separating, and the safety factor is further improved.

In order to further improve the installation efficiency, the installation assembly further comprises a traction belt connected with the same side ends of the bottom plates, and a plurality of rotary connectors are connected through the traction belt to form uniform driving. In this embodiment, the traction belt is connected to control three screwing pieces, and meanwhile, traction portions are extended from two ends of the traction belt, when one end of the traction portion is pulled, the bottom plate can drive the screwing pieces to integrally rotate, so that the clamping piece rotates and enters the locking portion to complete locking, and in other embodiments, the screwing pieces controlled by the traction belt can be adaptively set according to actual use requirements. After the locking is completed, the firmness of the installation can be checked by poking the bottom plate.

And after the rotary connecting piece is fixed, the outer sealing band and the inner sealing band can be detached, wherein the outer sealing band is used for filling an outer side crack between the outer frame body and the outer frame, the inner sealing band is used for filling an inner side, the outer sealing band is required to be mounted in front, is temporarily attached to the outer frame body through an adhesive tape, and is pressed through the outer frame. The window capable of being directly installed with the external frame without perforating an original window is achieved, and the external frame can be stably supported.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic top view cross-sectional structure of a casement window of the present utility model.

Fig. 2 is a schematic top-down cross-sectional structure of a casement window of the present utility model without an external frame.

Fig. 3 is an enlarged schematic view of the structure at a in fig. 2.

Fig. 4 is an enlarged schematic view of the structure at B in fig. 1.

Fig. 5 is a schematic view showing a three-dimensional structure of a screwing piece according to the present utility model.

Fig. 6 is a schematic perspective view of a back-fastening platform according to the present utility model.

Fig. 7 is a schematic top-view cross-sectional structure of a casement window without an external frame according to another embodiment of the present utility model.

Fig. 8 is a schematic top view cross-sectional structure of a casement window according to another embodiment of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1 to 6, a casement window includes an outer frame 1 installed inside a wall body, an inner frame 2 installed inside the outer frame 1, glass 7 installed inside the inner frame 2, and an outer frame 3 installed at an indoor-facing side of the outer frame 1;

a slot 21 is formed in the side, facing the indoor side, of the outer frame body 1, and a plurality of back-fastening platforms 22 are arranged on the inner side of the slot 21;

the installation component 4 is installed to the device between frame 1 and the external frame 3, installation component 4 is including rotating the installation and being in a plurality of soon of external frame 3 one side connects piece 41, soon connect piece 41 to include joint piece 411, through the rotation soon connect piece 41 to cooperate with fluting 21, will joint piece 411 on the external frame 3 is installed correspondingly in the back-off platform 22 of frame 1.

The thickness of the aluminum alloy window is thinner, the stability of the area where the bolt fixing points are formed on the aluminum alloy window is limited, the fixing area where the aluminum alloy window is formed is easy to deform due to the weight of the external frame in long-term use, and the installation firmness is reduced, so that the external frame 1 is arranged, the slot 21 for installing the external frame 3 is directly formed on one side of the external frame 1, a plurality of screwing pieces 41 are rotatably installed on the external frame 3, and the screwing pieces 41 are matched with the back-fastening platforms 22 uniformly distributed in the external frame 3, so that the external frame 3 can be installed on the external frame 1 through the screwing pieces 41. In this embodiment, since the screwing piece 41 is matched with the back-fastening platform 22 on the slot 21, the screwing piece 41 can be adapted to different external frames 3, and the external frame 1 with the mounting slot can shorten the setting distance of the screwing piece 41 without punching to damage the rigidity strength of the external frame 1, on the one hand, and on the other hand, since the external frame 1 is not required to punch, the stress of the area for fixing the external frame 3 is more uniformly dispersed, and deformation is not easy to occur, so that the mounting firmness of the external frame can be fully ensured in long-term use.

Although the external frame 3 can be conveniently installed by directly arranging the slots 21 on the external frame 1, the preference of a part of householder to the standard frame style is not excluded, and the directions of the slots 21 in the external frame 1 face indoors, so that dust is easily accumulated in the slots 21 on the external frame 1 and the attractive appearance is affected to a certain extent if the external frame 3 is not installed. The mounting assembly 4 further comprises an outer sealing band 42 mounted on the side, facing the indoor, of the outer frame body 1, and an inner sealing band 43 attached to the inner side surface of the outer sealing band 42, a storage groove 44 is formed in the attaching surface of the outer sealing band 42 and the inner sealing band 43 at intervals, and a screwing piece 41 is placed in the storage groove 44. When the external frame 3 is not installed, one half of the screwing piece 41 can be correspondingly placed in the storage grooves 44 of the external sealing strip 42 and the internal sealing strip 43 respectively, wherein the storage grooves 44 are arranged in the same number as the screwing piece 41, the arrangement positions of the storage grooves 44 are matched with the positions of the back-fastening platform 22, the external sealing strip 42 and the internal sealing strip 43 can form an attaching state through embedding of the screwing piece 41, and can keep a fixed shielding sheet form in a normal state, and can be embedded into the slot 21 by keeping the form, so that the slot 21 is shielded, the screwing piece 41 can be stored, and the beautifying effect can be realized on the slot 21.

Wherein, the metal sheets 45 are inserted into the outer sealing band 42 and the inner sealing band 43 for enhancing the strength of the single side surface, and the protection strength of the slot 21 can be effectively improved when the metal sheets are inserted into the slot 21 after being combined as the outer sealing band 42 and the inner sealing band 43.

Because the screwing piece 41 is matched with the back-fastening platform 22 on the slot 21, the screwing piece 41 can be adapted to different external frames 3, but the screwing piece 41 needs to be accurately installed in the external frame 3, otherwise, the screwing piece 41 is difficult to be matched with the back-fastening platform 22. Therefore, the screwing piece 41 includes a bottom piece 412, a connecting rod 413 connecting the bottom piece 412 and the clamping piece 411, and a through hole penetrating the clamping piece 411, the bottom piece 412, and the connecting rod 413, wherein a marking ring 414 is disposed at one end of the through hole away from the clamping piece 411, and the marking ring 414 is embedded at one side of the bottom piece 412. In the face of different external frames 3, the screwing pieces 41 can be taken down one by one and turned over to reset and install in the storage groove 44 of the external sealing belt 42 and the internal sealing belt 43, as the storage groove 44 is an open surface far away from the indoor side, the bottom piece 412 provided with one end of the marking ring 414 can face outwards, when all the screwing pieces 41 are turned over, the whole external sealing belt 42 and the internal sealing belt 43 can be covered on the external frame 3, the marking ring 412 is in contact with the side face of the external frame 3, therefore, marking points can be left after pressing, when the subsequent screwing pieces 41 are installed, accurate installation can be realized only by installing according to the marking points, and the screwing pieces 41 are installed on the external frame 3 through tapping nails 416.

In this embodiment, the marker ring 412 is a ring made of calcium sulfate material.

In addition, since the marking ring 412 is easily worn by contact with hard objects, the storage groove 44 is a closed surface facing the indoor side for protecting the hard objects, and the marking ring 412 is faced to the closed surface when the screw 41 is stored, and since the outer seal belt 42 and the inner seal belt 43 are both made of rubber materials, the marking ring 412 is not easily damaged.

In order to enable the locking piece 411 to be better engaged with the back-fastening platform 22, the side, facing the bottom piece 412, of the locking piece 411 is in a circular arc structure, the back-fastening platform 22 comprises guide portions 221 located at two sides of the back-fastening platform 22, and a locking portion 222 located between the two guide portions 221, and the locking piece 411 is guided to abut against the inner side surface of the locking portion 222 by the guide portions 221. Since the engagement between the guide portion 221 and the locking portion 222 is smooth, the locking piece 411 has higher smoothness when passing through the guide portion 221, and is not easy to be locked. The width of the locking piece 411 is smaller than the width of the slot 21, and the length of the locking piece 411 is greater than the width of the slot 21, so that the locking piece 411 can be inserted into the slot 21, and can be abutted in the locking portion 222 after rotating, so that the locking piece 411 can be smoothly connected with the back-fastening platform 22.

In order to make the external frame 3 with a larger weight borne by the external frame 1, the safety coefficient of the external frame 3 is further improved, so that the clamping piece 411 is internally embedded with a plurality of reinforcing steel wires 4111, when in use, the tensile coefficient of the external frame 3 can be further enhanced due to the arrangement of the reinforcing steel wires 4111 in the clamping piece 411, in the embodiment, the clamping piece 411 is made of a stainless steel material, if the external frame 3 is lighter in weight, in other embodiments, the clamping piece 411 can also be made of a plastic material, and as the clamping piece 411 can form a general-purpose fitting after the back-fastening platform 22 is standardized, the material of the external frame 3 can be variously developed according to the use requirement and the use time limit.

In addition, the back fastening platform 22 includes a first hooking portion 223, the first hooking portion 223 is located inside the locking portion 222, and an opening direction of the first hooking portion 223 is far away from the slot 21; the locking piece 411 is provided with a second hooking portion 4112 on one side thereof, which is attached to the locking portion 222, the opening direction of the second hooking portion 4112 faces the slot 21, and the first hooking portion 223 and the second hooking portion 4112 are matched. When the outer frame 1 is deformed or partially broken due to the transition load bearing, the first hooking portion 223 can be hooked on the second hooking portion 4112, so that the traction force can be further improved, the external frame 3 can be prevented from being suddenly separated, and the safety factor can be further improved.

When a plurality of screwing pieces 41 are provided, in order to further improve the installation efficiency, the installation assembly 4 further includes a traction belt 415 connecting a plurality of the same side ends of the bottom pieces 412, and a uniform driving can be formed by connecting the plurality of screwing pieces 41 through the traction belt 412. In this embodiment, the traction belt 415 is connected to control the three screwing pieces 41, and meanwhile, the traction portions 4121 are extended from two ends of the traction belt 415, when the traction portion 4121 at one end is pulled, the bottom piece 412 can drive the screwing pieces 41 to integrally rotate, so that the clamping piece 411 rotates and enters the locking portion 222 to complete locking, and in other embodiments, the screwing pieces 41 controlled by the traction belt 415 can be adaptively set according to practical use requirements. After locking is completed, the security of the installation may be checked by toggling the bottom panel 412.

After the screwing piece 41 is fixed, the outer sealing band 42 and the inner sealing band 43 can be detached, wherein the outer sealing band 42 is used for filling an outer side gap between the outer frame body 1 and the outer frame 3, the inner sealing band 43 is used for filling an inner side, the outer sealing band 42 is required to be mounted in front, is temporarily attached to the outer frame body 1 through an adhesive tape, and is pressed through the outer frame 3.

In this embodiment, the casement window is an outward opening window, the installation position of the glass 3 is close to the outdoor side, and the casement window further comprises an outer fan frame 5, and the outer fan frame 5 is arranged on the indoor side of the outer frame 3. The screen 51 may also be mounted on the outer frame 5. In this embodiment, the outer frame 5 is fixedly mounted on the outer frame 3, and in other embodiments, the outer frame 5 is rotatably mounted on the outer frame 3.

Example 2

Referring to fig. 7-8, the present embodiment is basically the same as embodiment 1, except that the inner frame 2 is also provided with a slot 21 toward the indoor side, but since the glass 3 is installed near the indoor side, the outer frame 5 is also provided in this embodiment, and the outer frame 1 and the inner frame 2 can be correspondingly installed with external frames 3 of corresponding specifications, which is an inwardly opened and inverted window in this embodiment.

In addition, the screen window frame 6 is fixedly installed on the outdoor side of the outer frame body 1, and the inner frame body 2 can be moved towards the indoor side during installation, so that the installation position of the screen window frame 6 is reserved on the outdoor side, and the screen window frame 6 is fixedly installed on the outer frame body 1 in an embedding mode.

For realizing the fixed after the internal frame body 2 moves towards indoor one side, the internal frame body 1 inboard is equipped with first clamping position 1a and second clamping position 2a, the internal frame body 2 outside is equipped with joint portion 11, when being in when not installing external frame 3, joint portion 11 cooperatees with first clamping position 1a, when being in when installing external frame 3, internal frame body 2 moves towards indoor one side after, joint portion 11 cooperatees with second clamping position 2a, can form the installation of giving way to gauze window frame 6 on the one hand, on the other hand can form the dislocation installation to two external frames 3.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The side-hung window is characterized by comprising an outer frame body (1) arranged in a wall body, an inner frame body (2) arranged in the outer frame body (1), glass (7) arranged in the inner frame body (2) and an external frame (3) arranged on one side, facing an indoor side, of the outer frame body (1);

a slot (21) is formed in the side, facing the indoor side, of the outer frame body (1), and a plurality of back-fastening platforms (22) are arranged on the inner side of the slot (21);

the device is characterized in that a mounting assembly (4) is arranged between the outer frame body (1) and the outer frame body (3), the mounting assembly (4) comprises a plurality of rotary connecting pieces (41) which are rotatably mounted on one side of the outer frame body (3), each rotary connecting piece (41) comprises a clamping piece (411), the rotary connecting pieces (41) are matched with the grooves (21) through rotation, and the clamping pieces (411) on the outer frame body (3) are correspondingly mounted in the back-fastening platform (22) of the outer frame body (1).

2. A casement window according to claim 1, wherein: the installation component (4) is still including installing outer sealing band (42) of frame body (1) towards indoor one side, and with interior sealing band (43) of outer sealing band (42) medial surface laminating, the laminating face interval of outer sealing band (42) and interior sealing band (43) is provided with storage tank (44), place in storage tank (44) and connect piece (41) soon.

3. A casement window according to claim 2, wherein: the storage groove (44) is a closed surface facing the indoor side and an open surface facing away from the indoor side.

4. A casement window according to claim 1, wherein: the rotary connector (41) comprises a bottom plate (412), a connecting rod (413) for connecting the bottom plate (412) with the clamping piece (411) and a through hole penetrating the clamping piece (411), the bottom plate (412) and the connecting rod (413), wherein a marking ring (414) is arranged at one end, far away from the clamping piece (411), of the through hole, and the marking ring (414) is embedded on one side of the bottom plate (412).

5. A casement window according to claim 1, wherein: the clamping piece (411) is of a circular arc structure towards one side of the bottom piece (412), the back buckling platform (22) comprises guide parts (221) positioned on two sides of the back buckling platform (22), and locking parts (222) positioned between the two guide parts (221), and the clamping piece (411) is guided to be abutted to the inner side face of the locking parts (222) through the guide parts (221).

6. A casement window according to claim 1, wherein: a plurality of reinforcing steel wires (4111) are embedded in the clamping piece (411).

7. A casement window according to claim 1, wherein: the back-fastening platform (22) comprises a first hooking part (223), the first hooking part (223) is positioned at the inner side of the locking part (222), and the opening direction of the first hooking part (223) is far away from the slot (21);

the clamping piece (411) is attached to one side of the locking portion (222) and is provided with a second hooking portion (4112), the opening direction of the second hooking portion (4112) faces the slot (21), and the first hooking portion (223) and the second hooking portion (4112) are matched.

8. A casement window according to claim 4, wherein: the mounting assembly (4) further comprises a traction belt (415) connected with the same side ends of the bottom plates (412).

9. A casement window according to claim 1, wherein: the casement window further comprises an outer fan frame (5), and the outer fan frame (5) is arranged on one side, facing the indoor, of the outer frame (3).

10. A casement window according to claim 1, wherein: the indoor side of inside casing (2) orientation is provided with fluting (21), the inside casing (2) outside is equipped with joint portion (11), the outside casing (1) inboard be equipped with joint portion (11) cooperation installation first clamping position (1 a) and second clamping position (2 a).