CN213205513U - Broken bridge heat insulation strip penetrating window screen aluminum profile - Google Patents

Abstract

The utility model relates to the technical field of aluminum profiles, and discloses a bridge cut-off heat insulation strip-penetrating window screening aluminum profile, which comprises an aluminum alloy outer frame, a middle connecting frame body, an aluminum alloy inner frame, a first heat insulation bridge cut-off strip and a second heat insulation bridge cut-off strip, wherein the aluminum alloy outer frame comprises an outer frame body, a first clamping groove, a first partition plate, a first sound insulation cavity, a first bolt, a first moving plate and a first spring piece, the middle connecting frame comprises a middle connecting frame body, a second clamping groove, a third clamping groove and a second sound insulation cavity, the aluminum alloy inner frame comprises an inner frame body, a fourth clamping groove, a second partition plate, a third sound insulation cavity, a second bolt, a second moving plate and a second spring piece, the first heat insulation bridge cut-off strip, the aluminum alloy outer frame and the middle connecting frame form a first heat insulation cavity, the second heat insulation bridge cut-off strip, the aluminum alloy inner frame and the middle connecting frame form a second heat, the installation degree of difficulty has been reduced, improves the installation effectiveness, and protection glass edge has strengthened the practicality of aluminium alloy.

Description

Broken bridge heat insulation strip penetrating window screen aluminum profile

Technical Field

The utility model relates to an aluminium alloy technical field specifically is a broken bridge heat-insulation strip window screening aluminium alloy of wearing.

Background

Compared with wood decorative doors and windows and ordinary hollow or solid steel doors and windows which are gradually eliminated, the aluminum alloy doors and windows have outstanding service performance, and the air pressure strength performance, the air permeability performance, the rainwater leakage performance, the air sound insulation performance, the heat insulation performance, the opening and closing performance and the like of the aluminum alloy doors and windows reach the national standard regulations, and due to the characteristics of aluminum alloy materials, the aluminum alloy doors and windows can provide important and necessary conditions for the energy-saving design and the use safety and other standard requirements of building envelope structures by processing and manufacturing, aluminum alloy assembly and product installation, and the aluminum alloy doors and windows are inquired:

the conventional double-bridge-cutoff heat-insulating section (with the publication number of CN207794925U) comprises a heat-insulating section, an auxiliary section and an auxiliary heat-insulating piece, and the double-bridge-cutoff heat-insulating section combines two heat-insulating modes of a strip-penetrating type heat-insulating strip and a glue-injecting type heat-insulating glue, so that high heat-insulating performance and high flexibility in door and window design are realized, the door and window are not the weak points of building heat insulation any more, and the overall heat-insulating performance of a building is improved;

the bridge cut-off heat insulation aluminum profile (publication number CN110847760A) with high safety comprises an aluminum alloy outer frame, a middle connection frame, an aluminum alloy inner frame, a first heat insulation bridge cut-off strip, a second heat insulation bridge cut-off strip, a third heat insulation bridge cut-off strip, a fourth heat insulation bridge cut-off strip, a heat insulation cavity and a solid wood strip, and has good heat insulation effect, safety and sound insulation effect.

Above two kinds of aluminium alloy are the same with traditional aluminium alloy, when installation glass, all need with glass embedding mounting groove in, because the mounting groove interval is little, need during the installation insert glass accurate alignment mounting groove, the installation degree of difficulty is great, glass edge is easy broken.

Therefore, it is needed to provide a bridge-cut-off heat-insulation strip-penetrating window screening aluminum profile to solve the problems of high installation difficulty and easy breakage of glass edges.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a broken bridge heat insulation wears strip window screening aluminium alloy through setting up bolt and movable plate, utilizes the bolt to promote the movable plate, makes movable plate and frame press from both sides glass tightly to reduce the installation degree of difficulty, improve the installation effectiveness, the protection glass edge has strengthened the practicality of aluminium alloy.

(II) technical scheme

For the purpose that realizes above-mentioned simple installation, protection glass edge, the utility model provides a following technical scheme: the utility model provides a bridge cut-off heat-insulation strip-penetrating window screen aluminum profile, includes:

an aluminum alloy outer frame comprising:

-an outer frame body;

the first clamping groove is arranged at the lower end of the outer frame body;

a first partition plate arranged in the middle of the outer frame body;

the first sound insulation cavity is formed by the outer frame body and the partition plate I;

the first bolt is arranged at the upper end of the left side face of the outer frame body and is in rotating connection with the left side face of the outer frame body;

the first moving plate is arranged on the top surface of the first partition plate and is in sliding connection with the first moving plate;

one end of the first spring piece is attached to the outer frame body, and the other end of the first spring piece is attached to the moving plate I;

the well even frame includes:

-a middle frame-connecting body;

the clamping groove II is arranged at the upper end of the middle connecting frame body;

the clamping groove III is arranged at the right end of the middle connecting frame body;

-a second sound-insulating chamber;

an aluminum alloy inner frame comprising:

-an inner frame body;

the clamping groove IV is arranged at the lower end of the left side face of the inner frame body;

a second partition plate arranged in the middle of the inner frame body;

the third sound insulation cavity is formed by the inner frame body and the partition plate II;

the second bolt is arranged at the upper end of the right side face of the inner frame body and is in rotating connection with the right side face of the inner frame body;

a second moving plate which is arranged on the top surface of the second separation plate and is in sliding connection with the second moving plate;

one end of the second spring piece is attached to the inner frame body, and the other end of the second spring piece is attached to the second moving plate;

the upper end of the first heat insulation bridge-cut-off strip is arranged in the first clamping groove, the lower end of the first heat insulation bridge-cut-off strip is arranged in the second clamping groove, and the first heat insulation bridge-cut-off strip, the outer aluminum alloy frame and the middle connecting frame form a first heat insulation cavity;

and the left end of the second heat insulation broken bridge penetrating strip is arranged in the third clamping groove, the right end of the second heat insulation broken bridge penetrating strip is arranged in the fourth clamping groove, and the second heat insulation broken bridge penetrating strip, the aluminum alloy inner frame and the middle connecting frame form a second heat insulation cavity.

This aluminium alloy is through setting up bolt one and movable plate one in the frame framework, sets up bolt two and movable plate two in the inside casing framework, utilizes the bolt to promote the movable plate, makes movable plate and frame press from both sides glass tight, and it is big to have solved the installation degree of difficulty when installing glass, and the easy broken problem in glass edge makes the aluminium alloy satisfy thermal-insulated requirement of giving sound insulation through setting up first sound insulation chamber, second sound insulation chamber, third sound insulation chamber, thermal-insulated chamber one and thermal-insulated chamber two.

Preferably, the first bolt and the second bolt respectively comprise a head, a threaded rod, a rotating rod and a connecting ball, the heads are hexagonal prisms, the threaded rod is fixedly arranged on the bottom surface of the head, one end of the rotating rod is fixedly arranged on the side surface of the head, the connecting ball is arranged at the other end of the threaded rod, the first moving plate and the second moving plate can be pushed by arranging the first bolt and the second bolt, so that the glass is clamped tightly, the rotating rod and the connecting ball are arranged on the head, the first bolt and the second bolt can be rotated conveniently during installation, and the labor intensity is reduced.

Preferably, the first separation plate and the second separation plate are consistent in structure, the top surface of the first separation plate and the second separation plate is provided with the cogged clamping grooves, the two ends of the first separation plate and the second separation plate are provided with the baffle plates, the baffle plates are provided with the guide bars, the lower bottom surfaces of the first movable plate and the second movable plate are provided with the cogged convex lines, the two sides of the first movable plate and the second movable plate are provided with the semicircular clamping grooves, the cogged convex lines are arranged in the cogged clamping grooves and are meshed with the cogged convex lines, the guide bars are arranged in the semicircular clamping grooves, the first separation plate and the first movable plate are in sliding connection through the arrangement of the semicircular clamping grooves and the guide bars, the first separation plate and the first movable plate can be enlarged through the arrangement of.

Preferably, the silica gel layer is arranged on the right side surface of the first moving plate, the inner wall of the right side surface of the outer frame body, the left side surface of the second moving plate and the inner wall of the left side surface of the inner frame body, and when the glass is clamped, the silica gel layer can prevent the first moving plate, the outer frame body, the second moving plate and the inner frame body from being in direct contact with the glass, so that a buffering effect is achieved, the glass is protected, and the glass is prevented from being crushed.

As preferred, the side on silica gel layer is equipped with the wave burr, and when giving glass injecting glue, the wave burr can make the glue gathering, promotes the gluing effect of frame and glass, is favorable to increasing the fastness.

Preferably, the first spring piece and the second spring piece both comprise a first piece, a second piece and a third piece, threaded holes are formed in the first piece, the first spring piece and the second spring piece are connected with the first moving plate and the outer frame body together, and the second spring piece plays a role in connecting the second moving plate and the inner frame body to prevent the first moving plate and the second moving plate from laterally overturning.

As preferred, all be equipped with the locating hole on the inner wall in first sound-proof chamber, second sound-proof chamber and third sound-proof chamber, and the locating hole quantity in same sound-proof intracavity is two at least, the location when the locating hole is convenient for install, and quantity is more, and the location is more accurate, and the location is more firm.

As preferred, all pack in first sound insulation chamber, second sound insulation chamber and the third sound insulation intracavity and have soundproof cotton, the syllable-dividing effect of reinforcing aluminium alloy.

(III) advantageous effects

Compared with the prior art, the utility model provides a broken bridge heat insulation wears a window screening aluminium alloy, this broken bridge heat insulation wears a window screening aluminium alloy, through setting up bolt one and movable plate one in the frame framework, set up bolt two and movable plate two in the inside casing framework, utilize the bolt to promote the movable plate, it is tight with glass clamp to make movable plate and frame, the installation is simple and convenient, the degree of difficulty when installing glass has been reduced, the installation effectiveness has been promoted, and the glass edge easily obtains effective protection, and through setting up first sound insulation chamber, second sound insulation chamber, the third sound insulation chamber, heat insulation chamber one and heat insulation chamber two, make the aluminium alloy satisfy syllable-dividing heat insulation requirement.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view of the aluminum alloy housing 1 of FIG. 1;

FIG. 3 is a cross-sectional view of the connecting frame 2 of FIG. 1;

FIG. 4 is a cross-sectional view of the aluminum alloy inner frame 3 of FIG. 1;

FIG. 5 is an enlarged view of the first bolt 15 of FIG. 2;

FIG. 6 is an enlarged schematic view of the spring plate 17 of FIG. 2;

FIG. 7 is an enlarged schematic view of the silicon layer 6 in FIG. 2;

FIG. 8 is an enlarged view of the first moving plate 16 of FIG. 2;

fig. 9 is an enlarged view of the first partition plate 13 in fig. 2.

In the figure: 1 aluminum alloy outer frame, 11 outer frame body, 12 first clamping groove, 13 first separation plate, 131 blunt tooth type clamping groove, 132 baffle, 133 guide strip, 14 first sound insulation cavity, 15 first bolt, 151 head, 152 threaded rod, 153 rotating rod, 154 connecting ball, 16 first moving plate, 161 blunt tooth type convex line, 162 semicircular clamping groove, 17 first spring piece, 171 first, 172 second, 173 third, 174 threaded hole, 2 middle connecting frame, 21 middle connecting frame body, 22 second clamping groove, 23 third clamping groove, 24 second sound insulation cavity, 3 aluminum alloy inner frame, 31 inner frame body, 32 fourth clamping groove, 33 second separation plate, 34 third sound insulation cavity, 35 second bolt, 36 moving plate, 37 second spring piece, 4 first heat insulation bridge-breaking penetrating strip, 5 second heat insulation bridge-breaking penetrating strip, 6 layer, 7 positioning hole, 8 first silica gel cavity and 9 second heat insulation cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "page", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. 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.

Referring to fig. 1-9, a bridge cut-off heat insulation bar-penetrating window screening aluminum profile comprises an aluminum alloy outer frame 1, a middle connecting frame 2, an aluminum alloy inner frame 3, a heat insulation bridge cut-off bar-penetrating bar-4 and a heat insulation bridge cut-off bar-penetrating bar-two 5, wherein the aluminum alloy outer frame 1 comprises an outer frame body 11, a clamping groove-one 12, a partition plate-one 13, a first sound insulation cavity 14, a bolt-one 15, a moving plate-one 16 and a spring piece 17, the clamping groove-one 12 is arranged at the lower end of the outer frame body 11 and used for clamping the heat insulation bridge cut-off bar-penetrating bar-4, the top surface of the partition plate-one 13 is provided with a blunt-tooth-shaped clamping groove 131, two ends are provided with baffles 132, the baffles are provided with guide bars 133, the partition plate-one 13 is arranged in the middle of the outer frame body 11 and forms the first sound insulation cavity 14 with the outer frame body 11, the first, the first bolt 15 comprises a head 151, a threaded rod 152, a rotating rod 153 and a connecting ball 154, the head 151 is hexagonal prism-shaped, the threaded rod 152 is fixedly arranged on the bottom surface of the head 151, one end of the rotating rod 153 is fixedly arranged on the side surface of the head 151, the connecting ball 154 is arranged at the other end of the threaded rod 152, the head 151 is provided with the rotating rod 153 and the connecting ball 154, the first bolt 15 is convenient to rotate during installation, the labor intensity is reduced, the lower bottom surface of the first moving plate 16 is provided with a blunt-tooth-shaped relief pattern 161, two sides of the moving plate are provided with semicircular clamping grooves 162, the blunt-tooth-shaped relief pattern 161 is arranged in the blunt-tooth-shaped clamping grooves 131 and is meshed with the blunt-tooth-shaped relief pattern 161, the contact area of the first partition plate and the first moving plate can be enlarged, the connection after glue injection is firmer, the guide bars 133 are arranged in the semicircular clamping grooves 162, the, the first piece 171 is provided with a threaded hole 174, the threaded hole 174 is sleeved on the threaded rod 152, the first piece 171 is attached to the outer frame body 11, the third piece 173 is attached to the first moving plate 16, and the first spring piece 17 can prevent the first moving plate from laterally overturning when the first moving plate is moved.

The middle connecting frame 2 comprises a middle connecting frame body 21, a second clamping groove 22, a third clamping groove 23 and a second sound insulation cavity 24, the second clamping groove 22 is arranged at the upper end of the middle connecting frame body 21 and used for clamping a first heat insulation broken bridge penetrating strip 4, the third clamping groove 23 is arranged at the right end of the middle connecting frame body 21 and used for clamping a second heat insulation broken bridge penetrating strip 5, and the second sound insulation cavity 24 enables the middle connecting frame body 21 to meet the sound insulation requirement.

The aluminum alloy inner frame 3 comprises an inner frame body 31, a clamping groove four 32, a second partition plate 33, a third sound insulation cavity 34, a second bolt 35, a second moving plate 36 and a second spring piece 37, wherein the clamping groove four 32 is arranged at the lower end of the left side surface of the inner frame body 31, the second partition plate 33 and the first partition plate 13 are consistent in structure and are arranged in the middle of the inner frame body 31, and the second partition plate 33 form a third sound insulation cavity 34, the third sound insulation cavity 34 enables the aluminum alloy inner frame 3 to meet the sound insulation requirement, the second bolt 35 and the first bolt 15 have the same structure and are arranged at the upper end of the right side surface of the inner frame body 31, and is connected with the second moving plate 36 in a rotating way, the second moving plate 36 and the first moving plate 16 are consistent in structure and are arranged on the top surface of the second partition plate 33, and the second spring piece 37 and the first spring piece 17 are in the same structure, one end of the second spring piece is attached to the inner frame body 31, and the other end of the second spring piece is attached to the second moving plate 36.

All be equipped with locating hole 7 on the inner wall in first sound insulation chamber 14, second sound insulation chamber 24 and third sound insulation chamber 34, and the locating hole 7 quantity in same sound insulation chamber is two at least, and locating hole 7 is fixed when being used for the aluminium alloy installation, and it has soundproof cotton all to fill in first sound insulation chamber 14, second sound insulation chamber 24 and the third sound insulation chamber 34, strengthens the syllable-dividing effect in sound insulation chamber.

The right flank of movable plate one 16, the inner wall of outer frame framework 11 right flank, all be equipped with silica gel layer 6 on the left flank of movable plate two 36 and the inner wall of inner frame framework 31 left flank, when pressing from both sides tight glass, the silica gel layer can prevent movable plate one, the outer frame framework, movable plate two and inner frame framework and glass direct contact, play the cushioning effect, protection glass, prevent that glass from being pressed from both sides the bits of broken glass, the side of silica gel layer 6 is equipped with the wave burr, when giving glass injecting glue, the wave burr can make the glue gathering, promote frame and glass's gluing effect, be favorable to increasing the fastness.

The upper end setting of a thermal-insulated bridge cut-off strip 4 is in draw-in groove 12, the lower extreme sets up in draw-in groove two 22, a thermal-insulated bridge cut-off strip 4 and aluminum alloy frame 1, well even frame 2 forms thermal-insulated chamber 8, the left end setting of a thermal-insulated bridge cut-off strip two 5 is in draw-in groove three 23, its right-hand member sets up in draw-in groove four 32, a thermal-insulated bridge cut-off strip two 5 and aluminum alloy inside casing 3, well even frame 2 forms thermal-insulated chamber two 9, thermal-insulated chamber 8 and thermal-insulated chamber two 9 make the aluminium alloy satisfy thermal-insulated requirement.

The utility model discloses a theory of operation:

the method comprises the following steps: glass is placed on the inner wall of the right side face of the aluminum alloy outer frame 1, the rotating rod 153 on the first 15 rotating bolt is used for driving the threaded rod 152 to enable the first moving plate 16 to push against the inner wall of the right side face of the aluminum alloy outer frame 1, the glass is clamped, and due to the fact that the silica gel layer 6 is arranged on the inner wall of the right side face of the aluminum alloy outer frame 1 and the side face of the first moving plate, a certain buffering effect is achieved when the glass is clamped, and the edge of the.

Step two: glass is placed on the inner wall of the left side face of the aluminum alloy inner frame 3, the rotating rod 153 on the second rotating bolt 35 is rotated to drive the threaded rod 152 to enable the second moving plate 36 to be pushed against the inner wall of the left side face of the aluminum alloy inner frame 3, the glass is clamped, and due to the fact that the silica gel layers 6 are arranged in the left side face of the aluminum alloy inner frame 3 and the second moving plate 36, a certain buffering effect is achieved when the glass is clamped, and the edge of the glass cannot be broken.

Step three: carry out the injecting glue to glass and aluminum alloy frame 1, aluminum alloy inside casing 3 junction, because 6 surfaces on silica gel layer are equipped with the wave burr, the wave burr can make the glue gathering, promotes the gluing effect of frame and glass, has increased the fastness after the connection.

Step four: treat that glue solidifies the back, fix the frame on the wall through locating hole 7, because be equipped with first sound insulation chamber 14 in the aluminum alloy frame 1, be equipped with second sound insulation chamber 24 in the well even frame 2, be equipped with third sound insulation chamber 34 in the aluminum alloy inside casing 3, and the sound insulation intracavity all fills has soundproof cotton, make this aluminium alloy satisfy the requirement of giving sound insulation, and thermal-insulated bridge cut-off wear strip one 4 and aluminum alloy frame 1, well even frame 2 forms thermal-insulated chamber one 8, thermal-insulated bridge cut-off wear strip two 5 and aluminum alloy inside casing 3, well even frame 2 forms thermal-insulated chamber two 9, make this aluminium alloy satisfy the requirement of giving heat insulation.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a bridge cut-off heat-insulation strip window screening aluminium alloy, its characterized in that includes:

aluminum alloy frame (1), including:

-an outer frame body (11);

-a first slot (12) provided at the lower end of said outer frame body (11);

-a first partition plate (13) arranged in the middle of said outer frame body (11);

-a first sound-insulating chamber (14) formed by said outer frame (11) and said first partition (13);

-a first bolt (15) arranged at the upper end of the left side of said outer frame body (11) and in rotational connection therewith;

-a first mobile plate (16) arranged on the top face of said first separation plate (13) and in sliding connection therewith;

a first spring piece (17), one end of which is jointed with the outer frame body (11) and the other end of which is jointed with the first moving plate (16);

the middle connecting frame (2) comprises:

-a midrib frame (21);

a second clamping groove (22) which is arranged at the upper end of the middle frame connecting body (21);

-a third slot (23) provided at the right end of said intermediate frame body (21);

-a second sound-insulating chamber (24);

an aluminium alloy inner frame (3) comprising:

-an inner frame body (31);

-a fourth catch groove (32) provided at the lower end of the left side of the inner frame body (31);

-a second partition plate (33) arranged in the middle of said inner frame body (31);

-a third sound-insulating chamber (34) formed by said inner frame (31) and by a second partition (33);

a second bolt (35) which is arranged at the upper end of the right side surface of the inner frame body (31) and is in rotating connection with the upper end;

-a second mobile plate (36) arranged on the top face of said second separation plate (33) and in sliding connection therewith;

a second spring piece (37), one end of which is jointed with the inner frame body (31) and the other end of which is jointed with the second moving plate (36);

the upper end of the first heat insulation bridge-cut-off strip (4) is arranged in the first clamping groove (12), the lower end of the first heat insulation bridge-cut-off strip is arranged in the second clamping groove (22), and the first heat insulation bridge-cut-off strip (4), the aluminum alloy outer frame (1) and the middle connecting frame (2) form a first heat insulation cavity (8);

and a second heat insulation broken bridge penetrating strip (5), wherein the left end of the second heat insulation broken bridge penetrating strip is arranged in the third clamping groove (23), the right end of the second heat insulation broken bridge penetrating strip is arranged in the fourth clamping groove (32), and the second heat insulation broken bridge penetrating strip (5) is connected with the aluminum alloy inner frame (3) and the middle connecting frame (2) to form a second heat insulation cavity (9).

2. The bridge cut-off heat insulation through-strip window screen aluminum profile as claimed in claim 1, characterized in that: bolt one (15) with bolt two (35) all include head (151), threaded rod (152), dwang (153) and connect ball (154), head (151) are hexagonal prism form, threaded rod (152) are fixed to be set up the bottom surface of head (151), the fixed setting of one end of dwang (153) is in the side of head (151), it sets up to connect ball (154) the other end of threaded rod (152).

3. The bridge cut-off heat insulation through-strip window screen aluminum profile as claimed in claim 1, characterized in that: the structure of division board (13) one with division board two (33) is unanimous, and the top surface is equipped with cogged type draw-in groove (131), and both ends are equipped with baffle (132), be equipped with gib block (133) on the baffle, movable plate one (16) with the lower bottom surface of movable plate two (36) is equipped with cogged type burr (161), and both sides all are equipped with semi-circular draw-in groove (162), cogged type burr (161) set up in cogged type draw-in groove (131) to rather than intermeshing, gib block (133) set up in semi-circular draw-in groove (162).

4. The bridge cut-off heat insulation strip-penetrating window screen aluminum profile as claimed in claim 1, is characterized in that: and silica gel layers (6) are arranged on the right side surface of the first moving plate (16), the inner wall of the right side surface of the outer frame body (11), the left side surface of the second moving plate (36) and the inner wall of the left side surface of the inner frame body (31).

5. The bridge cut-off heat insulation through-strip window screen aluminum profile as claimed in claim 4, characterized in that: the side of the silica gel layer (6) is provided with a wave-shaped convex pattern.

6. The bridge cut-off heat insulation through-strip window screen aluminum profile as claimed in claim 1, characterized in that: the first spring piece (17) and the second spring piece (37) respectively comprise a first piece (171), a second piece (172) and a third piece (173), and a threaded hole (174) is formed in the first piece (171).

7. The bridge cut-off heat insulation through-strip window screen aluminum profile as claimed in claim 1, characterized in that: the inner walls of the first sound insulation cavity (14), the second sound insulation cavity (24) and the third sound insulation cavity (34) are provided with positioning holes (7), and the number of the positioning holes (7) in the same sound insulation cavity is at least two.

8. The bridge cut-off heat insulation through-strip window screen aluminum profile as claimed in claim 1, characterized in that: soundproof cotton is filled in the first sound insulation cavity (14), the second sound insulation cavity (24) and the third sound insulation cavity (34).

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