CN210483473U

CN210483473U - Plastic-steel door and window with three-layer sealing

Info

Publication number: CN210483473U
Application number: CN201920475285.2U
Authority: CN
Inventors: 谢英杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-03-31
Filing date: 2019-03-31
Publication date: 2020-05-08
Anticipated expiration: 2029-03-31

Abstract

The utility model discloses plastic-steel door and window with three-layer seal relates to building trade technical field, especially relates to plastic-steel door and window's novel section bar structure and seal structure in the building trade. The utility model is divided into a three-layer sealing structure between the main section bars and a three-layer sealing structure between the hollow glass and the main section bars; the main section bar includes: fan, stile and frame; the three-layer sealing structure between the main sectional materials comprises: a three-layer sealing structure of a support fan and a three-layer sealing structure of a frame fan; the three-layer sealing structure between the hollow glass and the main section comprises: the three-layer sealing structure between the hollow glass and the fan material and the three-layer sealing structure between the hollow glass and the support material; the three-layer sealing structure comprises: an inner layer of sealing rubber strip, an outer layer of sealing rubber strip and a middle layer of co-extrusion strip. The technical scheme of the utility model solves the problem that only the sealing structure of the indoor buckle strip is left after the outer layer drain hole is processed by the single-cavity double-sealing section bar in the prior art, thereby reducing the sealing effect; the profiles with the three and four sealing structures have the problems of troublesome profile processing and assembling processes, high processing cost and the like.

Description

Plastic-steel door and window with three-layer sealing

Technical Field

The utility model relates to a building trade technical field especially relates to mould steel door and window's novel section bar structure and seal structure in the building trade.

Background

The plastic-steel door and window has the advantages of good heat insulation performance, low cost and the like, and is widely applied to the fields of industrial and civil buildings. With the development of the times and the progress of science and technology, the requirements of the building market on the aspects of green, energy conservation, dryness prevention and the like of doors and windows are higher and higher, and the design of the original plastic steel section cavity structure is difficult to meet the market requirements and is greatly to be improved and enhanced. At present, various section manufacturers also design plastic steel sections with three and four sealing, but the technologies focus on the transformation of the opening part of a door and a window, the aspect of fixing a glass notch is also single-cavity two-sealing, if the outer side sealing is actually damaged after the drain hole is processed, and only the indoor buckling strip is left for sealing. In addition, the three-seal or four-seal at the opening is troublesome in the production and processing process, high in processing cost and not beneficial to the production and processing of door and window manufacturers.

Aiming at the problems in the prior art, a novel plastic steel door window with three-layer sealing is researched and designed, so that the problem in the prior art is very necessary to be overcome.

Disclosure of Invention

According to the mentioned single-cavity double-sealing section, only an indoor buckling strip sealing structure is left after an outer-layer drainage hole is processed; the three-layer and four-layer sealing mechanisms have the technical problems of troublesome section bar and assembly process, high processing cost and the like, and the plastic-steel door and window with three-layer sealing is provided. The utility model discloses mainly utilize the form of one shot forming processing crowded joint strip altogether on the section bar, realize forming three-layer multicavity seal structure with original inside and outside sealing to play the convenient degree of installation that improves door and window's gas tightness and water proofness and cavity glass.

The utility model discloses a technical means as follows:

a plastic-steel door and window with three-layer sealing is characterized in that the three-layer sealing is divided into a three-layer sealing structure between main sectional materials and a three-layer sealing structure between hollow glass and the main sectional materials;

further, the main profile includes: fan, stile and frame;

further, the fan materials are divided into Z-shaped fan materials and T-shaped fan materials; the Z-shaped fan material is of a multi-seal cavity structure, a boss is arranged on one side of the middle of the Z-shaped fan material, a co-extrusion strip is arranged on the boss, and a co-extrusion platform is arranged on the other side of the Z-shaped fan material; a clamping groove is formed in the corner of one side with the boss, a buckling strip can be assembled on the clamping groove, and a sealing strip is arranged on the inner side of the other end of the buckling strip; the inner sides of the end parts of the upper and lower edges of the fan material are respectively provided with a sealant strip groove, and a replaceable sealing adhesive tape is arranged in each sealant strip groove; the T-shaped fan material is of a multi-seal-cavity structure, the lower sides of two end parts on the upper side of the T-shaped structure are respectively provided with a sealant strip groove, and a replaceable sealing rubber strip is arranged in each sealant strip groove; a co-extrusion platform is designed on one side of the middle part of the T-shaped structure, a boss is arranged on the co-extrusion surface of the other side of the T-shaped structure, and a co-extrusion strip is arranged on the boss; a clamping groove is formed in one side of a boss at the lower end of the T-shaped structure, a buckling strip can be assembled on the clamping groove, and a sealing strip is arranged on the inner side of the other end of the buckling strip;

furthermore, the stiffening material is of a T-shaped multi-seal-cavity structure, the middle parts of the co-extrusion surfaces on the two sides of the stiffening material are respectively provided with a boss, and the bosses are provided with co-extrusion strips; a sealant strip groove is respectively arranged at the lower sides of the two end parts of the T-shaped upper edge, and a replaceable sealing adhesive strip is arranged in the sealant strip groove; two sides of the lower end of the T-shaped structure of the stiffening material are respectively provided with a clamping groove, a buckling strip can be assembled on the clamping grooves, and a sealing strip is arranged on the inner side of the other end of the buckling strip;

furthermore, the frame material is of an L-shaped multi-seal-cavity structure, a boss is arranged in the middle of the co-extrusion surface of the frame material, and a co-extrusion strip is arranged on the boss; a sealant strip groove is formed in the inner side of the end part of the L-shaped lower edge, and a replaceable sealing rubber strip is arranged in the sealant strip groove; clamping grooves are formed in the outer sides of the other three corners of the frame material, buckling strips can be assembled on the clamping grooves, and sealing strips are arranged on the inner sides of the other ends of the buckling strips;

further, the three-layer sealing structure between the main profiles comprises: a three-layer sealing structure of a support fan and a three-layer sealing structure of a frame fan;

further, the three-layer sealing structure between the hollow glass and the main section comprises: the three-layer sealing structure between the hollow glass and the fan material and the three-layer sealing structure between the hollow glass and the support material;

further, the three-layer sealing structure includes: an inner layer of sealing rubber strip, an outer layer of sealing rubber strip and a middle layer of co-extrusion strip.

Furthermore, the main section bar is made of hard plastic steel, and the co-extruded strips are made of soft PVC; the co-extrusion strip and the main section are integrally manufactured by one-step molding; the main section is designed by extruding hard PVC and soft modified PVC together during production to form a soft and hard co-extruded plastic door and window section with a central co-extrusion strip (sealing rubber strip).

Further, the three-layer sealing structure of the support fan is as follows: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing a replaceable sealing rubber strip at the T-shaped end of the stiffening material and the outer part of the fan material; the middle layer sealing structure is used for extrusion sealing between the co-extrusion strips in the middle of the stiffening material and the co-extrusion platform in the middle of the fan material; the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip on the fan material and the T-shaped bottom end surface of the support material.

Further, the three-layer sealing structure of the frame fan is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing the replaceable sealing rubber strip at the end part of the L-shaped transverse edge of the frame material and the outer part of the fan material; the middle layer sealing structure is used for extrusion sealing between the co-extrusion strips in the middle of the frame material and the co-extrusion platform in the middle of the fan material; the outer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip on the fan material and the L-shaped top end surface of the frame material.

Further, the three-layer sealing structure between the hollow glass and the fan material is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is extrusion sealing between the replaceable sealing rubber strip on the inner side of the fan material and the hollow glass; the middle sealing structure is extrusion sealing between the co-extrusion strip and the end face of the hollow glass; the outer sealing structure is formed by extruding and sealing the sealing strips on the inner sides of the buckling strips and the hollow glass.

Further, the three-layer sealing structure between the hollow glass and the support material is as follows: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip on the inner side of the T-shaped transverse edge of the stiffening material and the hollow glass; the middle sealing structure is extrusion sealing between the co-extrusion strip and the end face of the hollow glass; the outer sealing structure is formed by extruding and sealing the sealing strips on the inner sides of the buckling strips and the hollow glass.

Further, the three-layer sealing structure between the hollow glass and the frame material is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip on the inner side of the L-shaped transverse edge of the frame material and the hollow glass; the middle sealing structure is extrusion sealing between the co-extrusion strip and the end face of the hollow glass; the outer sealing structure is formed by extruding and sealing the sealing strips on the inner sides of the buckling strips and the hollow glass.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a mould steel door and window with three-layer seal through the crowded strip altogether of the integration that sets up at the section bar middle part, has realized that door and window opens multicavity, many seal structure between part and glass and the section bar, has had very big improvement in the aspect of gas tightness, water proofness and energy-conserving heat preservation to door and window. The existing section bars are all single-cavity and single-sealing at the opening or at the position where the glass and the section bars are fixed, and if a non-invisible hinge is used, the opening is not actually sealed, because the visible hinge is used for breaking a rubber strip at the hinge. Therefore, it is very important to increase the opening and the multiple seal (also can be called central sealing system) of fixed glass chamber, the utility model discloses be exactly once take shape central sealing system with the method that rubber and plastic is crowded altogether, the closed trapezium structure is designed into to the appearance of rubber part moreover, and this kind of design shape is mainly that the later stage processing of considering the section bar is simple, is convenient for weld or spiro union to strengthen door and window's gas tightness and water proofness and glass's installation and go on conveniently.

2. The utility model provides a plastic-steel door and window with three-layer seal, production and processing are simple. The T-shaped connection and the cross-shaped connection can be welded or screwed, mortise and tenon connection can be realized at the screwed connection, and the connection strength is greatly improved. The section bar is welded after cutting, for example, frame corners, sash corners and the like, the rubber part and the plastic part are subjected to hot melting and then are bonded together, and the rubber part is a closed cavity, so that the consistency of the external shape of the rubber part is easily kept in the welding process, the butt joint of welded junctions is neat and smooth, and the reliable guarantee is provided for improving the air tightness and the water tightness of doors and windows.

3. The utility model provides a mould steel door and window with three-layer seal has reduced manufacturing cost, need not the secondary and inlays three or four sealing strips, welding, spiro union once take shape, no matter opening or fixed glass cavity, easily realize three chamber three sealings.

4. The utility model provides a mould steel door and window with three-layer is sealed has carried out standardized design to the size in plastic steel section bar steel lining chamber, and the steel lining of frame and club is whole to adopt square pipe shape design promptly, can directly purchase on steel market moreover, has ensured the section bar intensity of mould steel door and window and the product quality of steel, and standardized design has still reduced the cost of steel lining purchase, kills many birds with one stone.

In conclusion, the technical scheme of the utility model solves the problem that only the sealing structure of the indoor buckle strip is left after the outer layer drain hole is processed in the single-cavity double-sealing section bar in the prior art, thereby reducing the sealing effect; the profiles with the three and four sealing structures have the problems of troublesome profile processing and assembling processes, high processing cost and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of the lap joint structure of the Z-shaped fan material and the support material of the present invention;

FIG. 2 is a schematic view of the lap joint structure of the Z-shaped fan material and the frame material of the present invention;

FIG. 3 is a schematic view of the lap joint structure of the Z-shaped fan material and the stiffener of the present invention;

FIG. 4 is a schematic view of the lap joint structure of the Z-shaped fan material and the frame material of the present invention;

FIG. 5 is a schematic view of the three-layer sealing structure of the Z-shaped fan and the hollow glass of the present invention;

FIG. 6 is a schematic view of the three-layer sealing structure of the T-shaped fan and the hollow glass of the present invention;

FIG. 7 is a schematic view of a three-layer sealing structure of the T-shaped stiffening material and hollow glass of the present invention;

FIG. 8 is a schematic view of a three-layer sealing structure between a frame material and hollow glass according to the present invention;

FIG. 9 is a schematic view of the Z-shaped fan structure of the present invention;

FIG. 10 is a schematic view of the T-shaped fan of the present invention;

FIG. 11 is a schematic view of the structure of the stiffening material of the present invention;

FIG. 12 is a schematic view of the frame structure of the present invention;

FIG. 13 is a schematic view of the notch structure at the T-shaped junction of the stiffening material and the stiffening material of the present invention;

FIG. 14 is a schematic view of the notch structure at the T-shaped junction of the stiffening material and the stiffening material of the present invention;

fig. 15 is a schematic structural view of the T-shaped connection between the support material and the support material of the present invention.

In the figure: 1. the sealing structure comprises 1-1 parts of fan materials, 1-2 parts of Z-shaped fan materials, 2 parts of T-shaped fan materials, 3 parts of stiff materials, 4 parts of frame materials, 5 parts of hollow glass, 6 parts of buckling strips, 7 parts of co-extrusion strips, 8 parts of bosses, 9 parts of clamping grooves, 10 parts of co-extrusion tables, 11 parts of co-extrusion surfaces, 12 parts of sealing rubber strip grooves, 13 parts of replaceable sealing rubber strips and sealing strips.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element in question must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention: the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

As shown in the figures, the utility model provides a plastic-steel door and window with three-layer sealing, which is characterized in that the three-layer sealing is divided into a three-layer sealing structure between main sectional materials and a three-layer sealing structure between hollow glass 4 and the main sectional materials; the main section bar includes: a fan material 1, a support material 2 and a frame material 3;

the fan material 1 is divided into a Z-shaped fan material 1-1 and a T-shaped fan material 1-2; the Z-shaped fan material is of a multi-seal-cavity structure, a boss 7 is arranged on one side of the middle of the Z-shaped fan material, a co-extrusion strip 6 is arranged on the boss 7, and a co-extrusion platform 9 is arranged on the other side of the Z-shaped fan material; a clamping groove 8 is formed in the corner of one side with the boss 7, a buckling strip 5 can be assembled on the clamping groove 8, and a sealing strip 13 is arranged on the inner side of the other end of the buckling strip 5; the inner sides of the end parts of the upper and lower two sides of the fan material 1 are respectively provided with a sealant strip groove 11, and a replaceable sealant strip is arranged in the sealant strip groove 11; the T-shaped fan material is of a multi-seal-cavity structure, the lower sides of two end parts on the upper side of the T-shaped structure are respectively provided with a sealant strip groove 11, and a replaceable sealing rubber strip 12 is arranged in each sealant strip groove 11; a co-extrusion platform 9 is designed on one side of the middle part of the T-shaped structure, a boss 7 is arranged on the co-extrusion surface 10 of the other side, and a co-extrusion strip 6 is arranged on the boss 7; a clamping groove 8 is formed in one side of a boss 7 at the lower end of the T-shaped structure, a buckling strip 5 can be assembled on the clamping groove 8, and a sealing strip 13 is arranged on the inner side of the other end of the buckling strip 5;

the stiffening material 2 is of a T-shaped multi-sealed-cavity structure, the middle parts of the co-extrusion surfaces 10 on the two sides of the stiffening material are respectively provided with a boss 7, and the bosses 7 are provided with co-extrusion strips 6; a sealant strip groove 11 is respectively arranged at the lower sides of the two end parts of the T-shaped upper edge, and a replaceable sealing adhesive strip is arranged in the sealant strip groove 11; two sides of the lower end of the T-shaped structure of the stiffening material 2 are respectively provided with a clamping groove 8, a buckling strip 5 can be assembled on the clamping grooves 8, and a sealing strip 13 is arranged on the inner side of the other end of the buckling strip 5;

the frame material 3 is of an L-shaped multi-sealed-cavity structure, a boss 7 is arranged in the middle of a co-extrusion surface 10 of the frame material, and a co-extrusion strip 6 is arranged on the boss 7; a sealant strip groove 11 is formed in the inner side of the end part of the L-shaped lower edge, and a replaceable sealing rubber strip is arranged in the sealant strip groove 11; clamping grooves 8 are formed in the outer sides of the other three corners of the frame material 3, buckling strips 5 can be assembled on the clamping grooves 8, and sealing strips 13 are arranged on the inner sides of the other ends of the buckling strips 5;

the three-layer sealing structure between the main sectional materials comprises: a three-layer sealing structure of a support fan and a three-layer sealing structure of a frame fan;

the three-layer sealing structure between the hollow glass 4 and the main section comprises: a three-layer sealing structure between the hollow glass 4 and the fan material and a three-layer sealing structure between the hollow glass 4 and the support material;

the three-layer sealing structure comprises: an inner layer of sealing rubber strip, an outer layer of sealing rubber strip and a middle layer of co-extrusion strip 6.

The main section is made of hard plastic steel, and the co-extruded strips 6 are made of soft PVC; the co-extrusion strip 6 and the main section are integrally manufactured by one-step forming.

Example 1

As shown in fig. 1, the three-layer sealing structure of the support fan (Z-shaped fan) of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing a replaceable sealing rubber strip 12 at one T-shaped end of a stiffening material 2 and the outside of a fan material 1-1; the middle sealing structure is the extrusion sealing between the coextrusion strips 6 at the middle part of the stile material 2 and the coextrusion platform 9 at the middle part of the fan material 1-1; the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip 12 on the fan material 1-1 and the T-shaped bottom end face of the support material 2.

Example 2

As shown in fig. 2, the three-layer sealing structure of the frame fan (Z-shaped fan) of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing the replaceable sealing rubber strip 12 at the end part of the 3L-shaped transverse edge of the frame material and the outer part of the fan material 1-1; the middle sealing structure is the extrusion sealing between the coextrusion strip 6 at the middle part of the frame material 3 and the coextrusion platform 9 at the middle part of the fan material 1-1; the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip 12 on the fan material 1-1 and the L-shaped top end face of the frame material 3.

Example 3

As shown in fig. 3, the three-layer sealing structure of the support fan (T-shaped fan) of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing a replaceable sealing rubber strip 12 at one T-shaped end of a stiffening material 2 and the outer part of a fan material 1-2; the middle sealing structure is the extrusion sealing between the coextrusion strips 6 at the middle part of the stile material 2 and the coextrusion platform 9 at the middle part of the fan materials 1-2; the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip 12 on the fan material 1-2 and the T-shaped bottom end face of the support material 2.

Example 4

As shown in fig. 4, the three-layer sealing structure of the frame fan (T-shaped fan) of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing the replaceable sealing rubber strip 12 at the end part of the 3L-shaped transverse edge of the frame material and the outer part of the fan material 1-2; the middle sealing structure is the extrusion sealing between the coextrusion strip 6 at the middle part of the frame material 3 and the coextrusion platform 9 at the middle part of the fan material 1-2; the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip 12 on the fan material 1-2 and the L-shaped top end face of the frame material 3.

Example 5

As shown in fig. 5, the three-layer sealing structure between the hollow glass 4 and the fan (Z-shaped fan) of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner sealing structure is the extrusion sealing between the replaceable sealing rubber strip 12 at the inner side of the fan material 1-1 and the hollow glass 4; the middle sealing structure is the extrusion sealing between the co-extrusion strip 6 and the end face of the hollow glass 4; the outer sealing structure is the extrusion sealing between the sealing strip 13 on the inner side of the buckle strip 5 and the hollow glass 4.

Example 6

As shown in fig. 6, the three-layer sealing structure between the hollow glass 4 and the fan (T-shaped fan) of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner sealing structure is the extrusion sealing between the sealing strip 13 at the inner side of the buckling strip 5 and the hollow glass 4; the middle sealing structure is the extrusion sealing between the co-extrusion strip 6 and the end face of the hollow glass 4; the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip 12 on the inner side of the fan material 1-2 and the hollow glass 4.

Example 7

As shown in fig. 7, the three-layer sealing structure between the hollow glass 4 and the support material of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip 12 on the inner side of the T-shaped transverse edge of the stiffening material 2 and the hollow glass 4; the middle sealing structure is the extrusion sealing between the co-extrusion strip 6 and the end face of the hollow glass 4; the outer sealing structure is the extrusion sealing between the sealing strip 13 on the inner side of the buckle strip 5 and the hollow glass 4.

Example 8

As shown in fig. 8, the three-layer sealing structure between the hollow glass 4 and the frame material of the present invention is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner sealing structure is the extrusion sealing between the replaceable sealing rubber strip 12 on the inner side of the 3L-shaped transverse edge of the frame material and the hollow glass 4; the middle sealing structure is the extrusion sealing between the co-extrusion strip 6 and the end face of the hollow glass 4; the outer sealing structure is the extrusion sealing between the sealing strip 13 on the inner side of the buckle strip 5 and the hollow glass 4.

Example 9

As shown in fig. 3-15, the utility model provides a T-shaped connection and a cross-shaped connection of a stiffening material; if a screwed connection mode is adopted, firstly, two ends of the stile material 2 are customized into corresponding milling cutters according to the end surface shape of the section bar, the end surfaces of the stile material 2 are milled into matched shapes (as shown in figure 9), corresponding connection parts of the frame material 3 or the stile material 2 are punched into corresponding notches (mortise and tenon structures as shown in figure 10), corner connectors are placed in the inner cavity of the end part of the stile material 2 in advance and fixed with the stile material 2 by screws, then, the frame material 3 and the stile material 2 or the stile material 2 and the stile material 2 are connected by reinforced self-tapping self-drilling nails during assembly, and silicone sealant is required to be coated on the end surface before connection; if a welding production process is adopted, the section can be directly placed on a welding machine for hot melting and then connected together after the material is discharged, namely, the soft PVC and the hard PVC are heated simultaneously and welded simultaneously, and if welded, the welded beading on the plane sealing part of the corner part can be cleaned by scissors.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A plastic-steel door and window with three-layer seal is characterized in that the three-layer seal is divided into a three-layer seal structure between main profiles and a three-layer seal structure between hollow glass (4) and the main profiles;

the main section bar includes: a fan material (1), a support material (2) and a frame material (3);

the fan material (1) is divided into a Z-shaped fan material (1-1) and a T-shaped fan material (1-2); the Z-shaped fan material (1-1) is of a multi-seal cavity structure, a boss (7) is arranged on one side of the middle of the Z-shaped fan material, a co-extrusion strip (6) is arranged on the boss (7), and a co-extrusion platform (9) is arranged on the other side of the Z-shaped fan material; a clamping groove (8) is formed in the corner of one side with the boss (7), a buckling strip (5) can be assembled on the clamping groove (8), and a sealing strip (13) is arranged on the inner side of the other end of the buckling strip (5); the inner sides of the end parts of the upper side and the lower side of the fan material (1) are respectively provided with a sealant strip groove (11), and a replaceable sealing adhesive tape is arranged in the sealant strip groove (11); the T-shaped fan material (1-2) is of a multi-seal cavity structure, the lower sides of two end parts on the upper side of the T-shaped structure are respectively provided with a sealant strip groove (11), and a replaceable sealing rubber strip (12) is arranged in each sealant strip groove (11); a co-extrusion table (9) is designed on one side of the middle part of the T-shaped structure, a boss (7) is arranged on the co-extrusion surface (10) of the other side, and a co-extrusion strip (6) is arranged on the boss (7); a clamping groove (8) is formed in one side of a boss (7) at the lower end of the T-shaped structure, a buckling strip (5) can be assembled on the clamping groove (8), and a sealing strip (13) is arranged on the inner side of the other end of the buckling strip (5);

the stiffening material (2) is of a T-shaped multi-seal-cavity structure, the middle parts of the co-extrusion surfaces (10) on the two sides of the stiffening material are respectively provided with a boss (7), and the bosses (7) are provided with co-extrusion strips (6); a sealant strip groove (11) is respectively arranged at the lower sides of the two end parts of the upper side of the T shape, and a replaceable sealing adhesive tape (12) is arranged in the sealant strip groove (11); two sides of the lower end of the T-shaped structure of the support material (2) are respectively provided with a clamping groove (8), a buckling strip (5) can be assembled on the clamping grooves (8), and a sealing strip (13) is arranged on the inner side of the other end of the buckling strip (5);

the frame material (3) is of an L-shaped multi-seal-cavity structure, a boss (7) is arranged in the middle of a co-extrusion surface (10) of the frame material, and a co-extrusion strip (6) is arranged on the boss (7); a sealant strip groove (11) is formed in the inner side of the end part of the L-shaped lower edge, and a replaceable sealing rubber strip (12) is arranged in the sealant strip groove (11); clamping grooves (8) are formed in the outer sides of the other three corners of the frame material (3), buckling strips (5) can be assembled on the clamping grooves (8), and sealing strips (13) are arranged on the inner sides of the other ends of the buckling strips (5);

the three-layer sealing structure between the main profiles comprises: a three-layer sealing structure of a support fan and a three-layer sealing structure of a frame fan;

the three-layer sealing structure between the hollow glass (4) and the main section comprises: three-layer sealing structures between the hollow glass (4) and the fan material, three-layer sealing structures between the hollow glass (4) and the support material, and three-layer sealing structures between the hollow glass (4) and the frame material (3);

the three-layer sealing structure comprises: an inner layer of sealing rubber strip, an outer layer of sealing rubber strip and a middle layer of co-extrusion strip (6).

2. The plastic-steel door and window with three-layer sealing according to claim 1, wherein the main section is made of hard plastic-steel material, and the co-extrusion strip (6) is made of soft PVC material; the co-extrusion strip (6) and the main section bar are integrally manufactured by one-step molding.

3. The plastic-steel door and window with three-layer sealing of claim 1, wherein the three-layer sealing structure of the stile sash is as follows: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing a replaceable sealing rubber strip (12) at one T-shaped end of the stiffening material (2) and the outside of the fan material (1); the middle sealing structure is an extrusion seal between a co-extrusion strip (6) in the middle of the stiffening material (2) and a co-extrusion platform (9) in the middle of the fan material (1); the outer layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip (12) on the fan material (1) and the T-shaped bottom end face of the support material (2).

4. The plastic-steel door and window with three-layer sealing of claim 1, wherein the frame and sash three-layer sealing structure is divided into: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by lapping, extruding and sealing the replaceable sealing rubber strip (12) at the end part of the L-shaped transverse edge of the frame material (3) and the outer part of the fan material (1); the middle sealing structure is an extrusion seal between a co-extrusion strip (6) in the middle of the frame material (3) and a co-extrusion platform (9) in the middle of the fan material (1); the outer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip (12) on the fan material (1) and the L-shaped top end surface of the frame material (3).

5. Plastic-steel door and window with three-layer sealing according to claim 1, characterized in that the three-layer sealing structure between the hollow glass (4) and the sash is: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip (12) on the inner side of the fan material (1) and the hollow glass (4); the middle sealing structure is an extrusion seal between the co-extrusion strip (6) and the end face of the hollow glass (4); the outer-layer sealing structure is formed by extruding and sealing between a sealing strip (13) on the inner side of the buckling strip (5) and the hollow glass (4).

6. The plastic-steel door and window with three-layer sealing according to claim 1, wherein the three-layer sealing structure between the hollow glass (4) and the stile is as follows: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip (12) on the inner side of the T-shaped transverse edge of the stiffening material (2) and the hollow glass (4); the middle sealing structure is an extrusion seal between the co-extrusion strip (6) and the end face of the hollow glass (4); the outer-layer sealing structure is formed by extruding and sealing between a sealing strip (13) on the inner side of the buckling strip (5) and the hollow glass (4).

7. The plastic-steel door and window with three-layer sealing according to claim 1, wherein the three-layer sealing structure between the hollow glass (4) and the frame material is: the inner layer, the middle layer and the outer layer have three-layer structures: the inner-layer sealing structure is formed by extruding and sealing the replaceable sealing rubber strip (12) on the inner side of the L-shaped transverse edge of the frame material (3) and the hollow glass (4); the middle sealing structure is an extrusion seal between the co-extrusion strip (6) and the end face of the hollow glass (4); the outer-layer sealing structure is formed by extruding and sealing between a sealing strip (13) on the inner side of the buckling strip (5) and the hollow glass (4).