CN217538427U - Tensioning frame for internal suspension membrane - Google Patents

Abstract

The application discloses a tensioning frame for an inner suspension film, which is used for installing the inner suspension film in a tensioning state in the tensioning frame, wherein the tensioning frame comprises a first frame body and a second frame body which are clamped on two sides of the inner suspension film, the first frame body and the second frame body are connected to form a closed annular cavity, and the edge of the inner suspension film is clamped in the annular cavity; the first frame body and the second frame body are respectively provided with annular inner flanges which are opposite in position, and the annular inner flanges are respectively abutted against two side faces of the inner suspension film. The tensioning frame can be installed between two layers of glass with the inner suspension film in a tensioning state as an independent part, so that the problem of field tensioning of the inner suspension film is not required to be considered when the glass door window is installed, and the installation complexity is reduced. In addition, the tensioning frame clamps the edge of the inner suspension film in the annular cavity, so that air is isolated, and heat transfer caused by air convection is avoided.

Description

Tensioning frame for internal suspension membrane

Technical Field

The application relates to a tensioning frame for an inner suspension film in an inner suspension film glass door window.

Background

The inner suspension film door and window is an energy-saving and heat-insulating door and window with an inner suspension film arranged in hollow glass of the door and window, and has the characteristics of light weight and excellent energy-saving and heat-insulating effects. For example, US 4520611A discloses a structure of a multi-layer unit for a window, including two planar members, a flexible film disposed between and spaced apart from the two planar members, and a stretching member stretching the flexible film. The prior art tensile member is tensioned by compressing the flexible membrane, deforming the flexible membrane. This prior art's interior membrane door and window, the tensioning of its film needs to install a plurality of tensioning elements on the glass component, and these tensioning elements still need to produce the tensioning relation between with the film simultaneously for the installation of glass door and window and the tensioning of film need carry out in step, and the installation procedure is very loaded down with trivial details, produces local fold very easily moreover.

Disclosure of Invention

The technical problem to be solved by the present application is to provide a tensioning frame for an internal suspension membrane to reduce or avoid the aforementioned problems.

In order to solve the technical problem, the application provides a tensioning frame for an inner suspension film, which is used for installing the inner suspension film in a tensioning state in the tensioning frame, wherein the tensioning frame comprises a first frame body and a second frame body which are clamped and arranged on two sides of the inner suspension film, the first frame body and the second frame body are connected to form a closed annular cavity, and the edge of the inner suspension film is clamped in the annular cavity; the first frame body and the second frame body are respectively provided with annular inner flanges which are opposite in position, and the annular inner flanges are respectively abutted against two side faces of the inner suspension film.

Preferably, the first frame and the second frame are snap-connected together.

Preferably, the side edges of the first frame body and the second frame body are connected by screws.

Preferably, the first frame and the second frame are identical in structure and are connected into a whole through the heat insulation bridge.

Preferably, the first frame body and the second frame body are respectively formed by splicing four section bars, and two corresponding section bars of the first frame body and the second frame body are connected through a heat insulation bridge cut-off.

Preferably, the elastic sealing strip is arranged at the top of the annular inner flange, which is abutted to the inner suspension film.

The tensioning frame can be installed between two layers of glass with the inner suspension film in a tensioning state as an independent part, so that the problem of field tensioning of the inner suspension film is not required to be considered when the glass door window is installed, and the installation complexity is reduced. In addition, the tensioning frame clamps the edge of the inner suspension film in the annular cavity, so that air is isolated, and heat transfer caused by air convection is avoided.

Drawings

The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application.

FIG. 1 is a schematic cross-sectional view of an inner suspension membrane door and window according to an embodiment of the present application.

FIG. 2 is an exploded perspective view of a tension frame for an inner suspended membrane according to a particular embodiment of the present application.

FIG. 3 is an enlarged, partially exploded view of a tensioning block according to another embodiment of the present application.

Fig. 4 is a schematic structural view showing a second frame body of the tension frame according to an embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of an inner suspension membrane door and window according to another embodiment of the present application.

FIG. 6 is an enlarged, partially exploded view of a tensioning block according to yet another embodiment of the present application.

Figure 7 shows a schematic diagram of an elastic tensioner according to an embodiment of the present application.

Figure 8 shows an exploded perspective view of an elastic tensioning device according to yet another embodiment of the present application.

Detailed Description

In order to more clearly understand the technical features, objects, and effects of the present application, embodiments of the present application will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.

Fig. 1 shows a schematic cross-sectional view of an inner suspension membrane door window according to an embodiment of the present application, which includes two parallel hollow glasses 1, and at least one inner suspension membrane 2 is disposed in a cavity between the two glasses 1. The inner suspension film 2 can be made of a plastic film with good heat-resistant and insulating effects, and needs to be tensioned between hollow glasses to keep light rays transmitted in parallel and avoid visual deformation.

In order to facilitate the installation of the inner suspension film 2, the inner suspension film 2 is installed in the tensioning frame 3 in a tensioning state, the tensioning frame 3 and the inner suspension film 2 in the tensioning state can be installed between two layers of glass 1 as an independent component, and therefore the problem of field tensioning of the inner suspension film 2 does not need to be considered when the glass door window is installed, and the installation complexity is reduced.

Further, in the illustrated embodiment, both sides of the tension frame 3 may be bonded between the two sheets of glass 1 by spacer bars 4. For example, the spacer 4 may be an existing composite butyl aluminum spacer, butyl rubber for adhesion is provided on both sides of the spacer 4, and a molecular sieve for adsorbing water vapor may be provided in a hollow structure inside the spacer 4. The inner suspension film door and window shown in the figure is only provided with one layer of inner suspension film 2, and can also be deformed into a structure with two or more layers of inner suspension films in a mode of additionally arranging the tensioning frame 3 according to needs.

The tensioning operation of the inner suspension film in the prior art is very complicated, four edges of the inner suspension film need to be clamped on a plurality of elastic elements respectively during installation, and the tensioning force needs to be locally and repeatedly adjusted in order to prevent wrinkling. In addition, the interior membrane of hanging repeats expend with heat and contract with cold in the long-term use, and the tensile force difference can lead to the film to local position extrusion formation fold, and this can influence glass door and window's permeability, and the outdoor scenery of observation can produce visual deformation because of the refraction.

In order to solve the above problem, as seen in the exploded perspective view of the tension frame 3 shown in fig. 2, the four sides of the inner suspension film 2 of the present application are wound around four reels 21, respectively, and both ends of the four reels 21 are mounted inside the tension frame 3 by elastic tensioners 5, respectively.

In one illustrated embodiment, in order to facilitate the exposure of both ends of the winding shaft 21 while tensioning the inner suspension film 2, the inner suspension film 2 is rectangular with four corners cut off so that the width of the four sides of the inner suspension film 2 becomes narrower as they approach the edge positions, and thus the winding thickness of the inner suspension film 2 on the winding shaft 21 becomes thicker as it approaches the middle of the winding shaft 21 and becomes thinner as it approaches both ends of the winding shaft 21 when wound on the winding shaft 21. That is, the inner suspension film 2 wound around the bobbin 21 is formed into a spindle shape having a thick middle and thin ends. Therefore, as the inner suspension film 2 is tightly wound around the winding shaft 21, the tension of the middle position of the inner suspension film 2 is gradually greater than that of the corner position, and the stretching and loosening of the film caused by the thermal expansion of the middle suspended inner suspension film can be offset. Meanwhile, the winding edge of the inner suspension film 2 tends to extend towards the two thinner ends, so that the phenomenon of wrinkles caused by local extrusion of the film is naturally eliminated.

In order to facilitate the winding of the inner suspension film 2 by the winding shaft 21 to generate a uniform tension, it is preferable that the section of the middle portion of the winding shaft 21 for winding the inner suspension film 2 is circular. In addition, in order to facilitate that the tension force connected to the elastic tension device 5 is not loosened after the tension, the cross section of the reel 21 for connecting both ends of the elastic tension device 5 is square, so that the reel 21 is not easily rotated.

This application is through rolling up four limits of interior suspension membrane respectively on four spools, can obtain bigger tensile force in the middle part of interior suspension membrane, has offset interior suspension membrane be heated relaxation, has eliminated the fold through coiling nature simultaneously, therefore when installing on the tensioning frame, only need the both ends of tensioning spool, need not adjust the tensile force one by one to every position of periphery of interior suspension membrane, greatly reduced the complexity of tensioning operation.

Further, in one embodiment shown in fig. 1-2, the tension frame 3 includes a first frame body 31 and a second frame body 32 disposed on both sides of the inner suspension film 2, and the elastic tension device 5 is disposed inside a cavity formed by connecting the first frame body 31 and the second frame body 32. The first frame body 31 and the second frame body 32 are connected to form a closed annular cavity, and the edge of the inner suspension film 2 is clamped in the annular cavity, so that air is isolated, and heat transfer caused by air convection is avoided.

In the illustrated embodiment, two elastic tensioning devices 5 are provided for each reel 21, so that a total of eight elastic tensioning devices 5 are provided inside the first frame 31 and the second frame 32, and only six elastic tensioning devices 5 are shown in fig. 2 due to the view angle occlusion. Two elastic tensioning devices 5 are arranged in a group and are connected into a whole through a corner connecting piece 6 and are arranged at the corner position of the tensioning frame 3 together.

The first frame 31 may be made by splicing four profiles, for example, as shown in fig. 3, in which a partial structure of two profiles at a corner position is shown. The four sectional materials can be connected into a whole in a welding or bonding mode, or two adjacent sectional materials can be connected into a whole through a screw by the corner connecting piece 6. At this time, the corner connecting piece 6 not only integrally connects the two elastic tensioners 5 at the corner position (integrally connected by welding or screwing), but also integrally connects the two profiles. In the embodiment shown in fig. 3, the elastic tensioning device 5 is arranged mounted on the first frame 31. Of course, it will be understood by those skilled in the art that in an embodiment not shown, the elastic tensioning device 5 may also be arranged mounted on the second frame 32.

The second frame body 32 may be integrally stamped from a metal plate material, or may be integrally molded by metal casting or plastic injection molding, as shown in fig. 4, for example. Alternatively, the second frame 32 may be formed by joining four sectional materials, as in the case of the first frame 31. Alternatively, the first housing 31 may be integrally formed of metal or plastic, as in the second housing 32. Preferably, the frame body for mounting the elastic tensioning device 5 is formed by splicing metal profiles, so that the frame body can have higher supporting strength to adapt to tensioning operation; correspondingly, the other frame body can be made of metal or plastic integrally formed parts.

In the embodiment shown in fig. 1, the first frame body 31 and the second frame body 32 may be snap-coupled together. The second frame 32 may be disposed inside the first frame 31 in a snap fit manner as shown in fig. 1, or in a non-illustrated embodiment, the first frame 31 may be disposed inside the second frame 32 in a snap fit manner. In addition, in order to avoid the first frame 31 and the second frame 32 from being separated accidentally, the side edges of the first frame 31 and the second frame 32 may be connected by screws to form a reinforcement (screw holes are shown, and screws are not shown).

As shown in fig. 3 and 4, the first frame body 31 and the second frame body 32 have annular inner flanges 311 that are opposed to each other, and the annular inner flanges 311 abut against both side surfaces of the inner suspension film 2 (fig. 1), respectively. Lean on and to hang membrane 2 centre gripping in with by annular inner flange 311 on two sides of interior membrane 2 for the inside of first framework 31 of the both sides cavity of interior membrane 2 can not communicate with second framework 32, thereby makes the cavity of the both sides of interior membrane 2 obtain better isolation, has avoided the air current in the both sides cavity to take place the heat exchange.

Further, in order to further improve the isolation effect, an elastic sealing strip may be installed on the top of the annular inner flange 311 abutting against the inner suspension membrane 2.

Still further, in the embodiment shown in fig. 1, the height of the annular inner flange 311 is just enough to place the inner suspension membrane 2 in a flat tensioned state, without the inner suspension membrane 2 being jacked up by the annular inner flange 311 or the second annular inner flange 321. In another embodiment, not shown, the height of the annular inner flange 311 may be varied, for example, the height of the annular inner flange 311 of the first frame 31 for mounting the elastic tensioning device 5 may be slightly higher, so that the inner suspension membrane 2 is raised by the annular inner flange 311 to form a bending angle after being mounted, thereby increasing the tensioning degree of the inner suspension membrane 2 and improving the sealing effect of the annular inner flange 311 against the inner suspension membrane 2. Of course, in a further embodiment, not shown, it may also be provided that the second annular inner flange 321 is slightly higher in height, so that the inner suspension membrane 2 is lifted by the second annular inner flange 321 after installation.

Further, fig. 5 to 6 show another embodiment of the present application, in which the main structure of the tension frame is substantially the same as the embodiment shown in fig. 1, except that the first frame body 31 and the second frame body 32 of this embodiment have the same structure and are integrally connected by the thermal insulating bridge 401. As seen in the exploded perspective view of the tension frame shown in fig. 6, the first frame body 31 and the second frame body 32 may be formed by splicing four sectional materials, and two corresponding sectional materials of the first frame body 31 and the second frame body 32 are connected by a thermal insulation bridge-cut-off 401 to insulate heat transfer between the two frame bodies. The thermal insulating bridge cut-off 401 may be a bridge cut-off preform made of a commercially available nylon material, such as PA66 nylon.

In the embodiment shown in fig. 5 to 6, the first frame body 31 and the second frame body 32 have annular flanges 311 respectively at opposite positions, and in order to improve the isolation effect, in the embodiment shown in the figure, an elastic sealing strip 402 is mounted on the top of the annular flange 311 abutting against the inner suspension membrane 2.

The detailed structure of the elastic tensioning device for the inner suspension membrane door and window of the present application will be described in further detail with reference to fig. 7-8. As shown in the figure, the elastic tensioning device 5 includes a fixed base 51, a telescopic clamping seat 52 is disposed below the fixed base 51, and a spring 53 is disposed between the telescopic clamping seat 52 and the fixed base 51. For force balance, two springs 53 are arranged between the telescopic clamping seat 52 and the fixed base 51 side by side.

Further, the fixed base 51 may be formed by integrally cutting and bending a metal plate, and includes a fixed top plate 511 that abuts against the first end of the spring 53, two sides of the fixed top plate 511 are respectively bent to form fixed guide plates 512, and the bottom of the fixed guide plates 512 is bent to form a mounting plate 513; a positioning screw hole 5111 for positioning the spring 53 is formed on the fixed top plate 511; the mounting plate 513 is formed with a mounting screw hole 5131, and the entire elastic tension device 5 can be mounted inside the tension frame 3 by a screw inserted into the mounting screw hole 5131.

Two positioning screw holes 5111 are provided on the fixed top plate 511 corresponding to the number of the springs 53, and one positioning screw 5112 is provided in each positioning screw hole 5111. After the set screw 5112 passes through the set screw hole 5111, the end of the set screw passes through the end of the spring 53, so that the spring 53 will not break away from the set screw 5112 and fail during compression.

The retractable clamping seat 52 can also be formed by integrally cutting and bending a metal plate, and comprises a movable top plate 521 which abuts against the second end of the spring 53, the bottom of the movable top plate 521 is bent towards one side of the fixed top plate 511 to form a retractable guide plate 522, the retractable guide plate 522 passes through the tail end of a guide port 5113 at the bottom of the fixed top plate 511 and is bent upwards to form a hanging plate 523, and the tail end of the hanging plate 523 is formed with a clip hook plate 524; the end of the square section of the reel 21 is unrotatably caught in the concave space formed by the telescopic guide plate 522, the hanging plate 523, and the hook plate 524.

The fixed guide plate 512 is formed with a guide groove 5121, and the movable top plate 521 is formed at both ends thereof with protrusions 5211, respectively, and the protrusions 5211 are inserted into the guide groove 5121 and can move back and forth along the guide groove 5121.

When the elastic tensioning device 5 is assembled, the telescopic clamping seat 52 deflects by a certain angle, the protruding part 5211 is inserted into the guide groove 5121, then the telescopic clamping seat 52 is corrected, the spring 53 is placed between the telescopic clamping seat 52 and the fixed base 51, and finally the positioning screw 5112 is screwed to fix the position of the spring 53. After the fixed base 51 is installed on the tension frame 3, the telescopic clamping seat 52 is limited below the fixed base 51 through the guide groove 5121 and the guide opening 5113, and the telescopic clamping seat 52 can only move in parallel along the guide groove 5121, so that a stable elastic action can be provided for the end of the reel 21.

The end of the scroll 21 is of a square section structure, and can be clamped in concave spaces of the telescopic guide plate 522, the hanging plate 523 and the clip hook plate 524 without rotating, the clamping structure is simple and effective, and the operation is very convenient. The elastic tensioning device 5 is simple in structure and high in operation reliability, the compression force of the spring 53 is converted into the tensile elastic force, the elastic continuous effect of the whole structure is extremely high, and the elastic tensioning device can be used in a maintenance-free operation mode for life.

It should be appreciated by those skilled in the art that while the present application is described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is thus given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including all technical equivalents which are encompassed by the claims and are to be interpreted as combined with each other in a different embodiment so as to cover the scope of the present application.

The above description is only illustrative of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the present application shall fall within the scope of the present application.

Claims (6)

1. A tensioning frame for an inner suspension film is used for installing the inner suspension film which is arranged in a tensioning state in the tensioning frame, and is characterized by comprising a first frame body and a second frame body which are clamped on two sides of the inner suspension film, wherein the first frame body and the second frame body are connected to form a closed annular cavity, and the edge of the inner suspension film is clamped in the annular cavity; the first frame body and the second frame body are respectively provided with annular inner flanges which are opposite in position, and the annular inner flanges are respectively abutted against two side faces of the inner suspension film.

2. The tensioning frame for an internal suspension membrane of claim 1, wherein the first frame body and the second frame body are snap-connected together.

3. The tension frame for an inner suspension membrane according to claim 2, wherein the side edges of the first frame body and the second frame body are connected by screws.

4. The tension frame for an inner suspension membrane as claimed in claim 1, wherein the first frame body and the second frame body are identical in structure and are connected into a whole by an insulating bridge.

5. The tensioning frame for the internal suspension membrane as claimed in claim 4, wherein the first frame body and the second frame body are respectively formed by splicing four section bars, and two corresponding section bars of the first frame body and the second frame body are connected through a heat insulation broken bridge.

6. The tension frame for an inner suspension membrane as claimed in any one of claims 1 to 5, wherein an elastic sealing strip is mounted on the top of the annular inner flange abutting against the inner suspension membrane.

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