Thermal insulation and noise reduction metal door and window
By using C-shaped support frames and parallel sliding structures in metal doors and windows, combined with sealing strips and multi-layer sound insulation strips, the problem of noise reduction caused by gaps in door and window frames is solved, achieving a highly efficient heat insulation and noise reduction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG JINYUCHENG DOOR CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-03
AI Technical Summary
The existing metal doors and windows have gaps between their front and back frames, which affects their noise reduction capabilities.
A three-dimensional acoustic barrier system is constructed by using a C-shaped cross-section supporting frame, combined with a parallel sliding door and window frame structure, sealing strip assembly, and multi-layer sound insulation strips. This system includes a first sound insulation strip, a semi-circular cross-section sound insulation strip, and double-layer hollow heat-insulating glass.
It significantly improves the sealing and sound insulation performance of doors and windows, eliminates the noise transmission path generated by mechanical sliding, and achieves excellent heat insulation and sound insulation effects.
Smart Images

Figure CN224452660U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window technology, specifically to a heat-insulating and noise-reducing metal door and window. Background Technology
[0002] Metal doors and windows are architectural door and window products made primarily of metal materials (such as aluminum alloy, stainless steel, and steel). Their core characteristics are high strength and durability, combined with modern aesthetics and practical functionality. Aluminum alloy doors and windows have become the mainstream due to their light weight, corrosion resistance, and high plasticity; their surfaces can be anodized or spray-coated to achieve a variety of colors. Stainless steel doors and windows are suitable for humid environments due to their excellent rust resistance. Steel doors and windows, with their higher security, are often used in industrial or special-purpose applications.
[0003] For example, patent announcement number CN222414651U discloses a metal door and window with heat insulation and noise reduction, including a fixed frame, a movable frame inside the fixed frame, and glass inside the movable frame. It also includes: a sealing strip disposed on one side of one end of the movable frame to improve sealing performance, and a linkage component disposed inside the movable frame to further increase sealing performance. This device effectively reduces the gap between the movable frame and the fixed frame. This improvement significantly reduces the free flow of indoor and outdoor air, thereby reducing heat exchange and greatly improving the heat insulation performance of the door and window. At the same time, the reduction of the gap also effectively blocks the channel for noise transmission.
[0004] However, in the above-mentioned technology, the two door and window frames of the metal doors and windows are set one in front of the other. When the two door and window frames move to the sides to close the metal doors and windows, there is a gap between the two door and window frames due to their front-to-back arrangement, which affects the noise reduction capability of the metal doors and windows. Therefore, the market urgently needs to develop a heat-insulating and noise-reducing metal door and window to help people solve the existing problems. Utility Model Content
[0005] The purpose of this utility model is to provide a heat-insulating and noise-reducing metal door and window to solve the problem mentioned in the background art that in the prior art, the two door and window frames of the metal door and window are arranged front and back. When the two door and window frames move to the sides to close the metal door and window, there is a gap between the two door and window frames due to their front and back arrangement, which affects the noise reduction capability of the metal door and window.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating and noise-reducing metal door and window, comprising a C-shaped cross-section support frame, wherein a first sound-insulating cotton strip is fixedly connected to both ends of the inner side of the C-shaped cross-section support frame, and a first door and window frame and a second door and window frame are slidably connected to the front and rear ends of the middle part of the inner side of the C-shaped cross-section support frame, wherein a sealing strip assembly is fixedly connected to one side of the inner side of the first door and window frame and the second door and window frame, and the sealing strip assembly comprises a semi-circular cross-section sound-insulating strip and a wear-resistant surface layer, wherein the wear-resistant surface layer covers and is fixed to the outside of the semi-circular cross-section sound-insulating strip.
[0007] Preferably, both the first and second door / window frames are fixedly connected with double-layered insulated glass.
[0008] Preferably, the upper and lower end faces of the C-shaped cross-section support frame are fixedly connected with horizontal strip support rails at the front and rear ends. The upper and lower ends of the first and second door and window frames are provided with rectangular grooves. Guide rollers are fixedly and rotatably connected to both sides of each rectangular groove. The middle of the guide rollers is rotatably connected to the front and rear end faces of the rectangular groove through a fixed shaft.
[0009] Preferably, the strip support rails at the front ends of the upper and lower ends of the C-shaped cross-section support frame are respectively inserted into the rectangular grooves at the upper and lower ends of the first door and window frame, and the guide rollers inside the rectangular grooves at the upper and lower ends of the first door and window frame are respectively connected to the two strip support rails at the front end in a rolling connection.
[0010] Preferably, the strip support rails at the rear ends of the upper and lower end faces of the C-shaped cross-section support frame are respectively inserted into the rectangular grooves at the upper and lower ends of the second door and window frame, and the guide rollers inside the rectangular grooves at the upper and lower ends of the second door and window frame are respectively in rolling connection with the two strip support rails at the rear ends.
[0011] Preferably, a second sound-insulating cotton strip is fixedly connected to both the front and rear end faces inside each of the rectangular grooves and at both the front and rear ends of the middle of the strip support guide rail.
[0012] Preferably, a rectangular movable groove is provided in the middle of the semi-circular cross-section sound insulation strip. A tightening strip is fixedly connected to one side of the rectangular movable groove adjacent to the two sealing strip assemblies. Multiple springs are vertically arranged at equal intervals inside the rectangular movable groove and outside the tightening strip. All of the multiple springs are fixedly connected to the tightening strip.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] (1) In this utility model, by adopting the first and second door and window frame structures with parallel sliding, and with the elastic pressing design of the two sealing strip components, the gap problem caused by the traditional front and rear door and window frame is effectively eliminated, the overall sealing performance when the door and window are closed is significantly improved, and the sound insulation and noise reduction performance is substantially improved.
[0015] (2) In this utility model, a second sound insulation cotton strip is innovatively integrated into the sliding track mechanism (strip support guide rail and rectangular groove matching structure), which not only ensures the smooth sliding of the door and window frame, but also eliminates the noise transmission path generated by mechanical sliding, thus achieving the dual effect of "movement noise reduction".
[0016] (3) In this utility model, a three-dimensional acoustic barrier system is constructed by using the multi-layer sound insulation design inside the C-shaped cross-section support frame (first sound insulation cotton strip, semi-circular cross-section sound insulation strip in the sealing strip assembly, and double-layer hollow heat insulation glass), so that the doors and windows can maintain the high strength characteristics of metal materials while also having excellent heat insulation and sound insulation performance. Attached Figure Description
[0017] Figure 1 This is a front view of a heat-insulating and noise-reducing metal door and window according to this utility model;
[0018] Figure 2 This is a side sectional view of the present invention;
[0019] Figure 3 This is a top sectional view of the present invention;
[0020] Figure 4 This is a detailed enlarged view of part A of the present invention;
[0021] Figure 5 This is a detailed enlarged view of part B of this utility model.
[0022] In the diagram: 1. C-shaped cross-section support frame; 101. Strip support guide rail; 102. First sound insulation strip; 2. First door and window frame; 201. Second door and window frame; 202. Double-glazed insulated glass; 203. Rectangular groove; 204. Second sound insulation strip; 3. Guide roller; 301. Fixed shaft; 4. Sealing strip assembly; 401. Semi-circular cross-section sound insulation strip; 402. Wear-resistant surface layer; 403. Rectangular movable groove; 404. Spring; 405. Tightening strip. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] Please see Figure 1-5This utility model provides an embodiment of a heat-insulating and noise-reducing metal door and window, comprising a C-shaped cross-section support frame 1, with first sound-insulating cotton strips 102 fixedly connected to both sides of the inner end face of the C-shaped cross-section support frame 1, and a first door and window frame 2 and a second door and window frame 201 slidably connected to the front and rear ends of the middle part of the inner part of the C-shaped cross-section support frame 1, with double-layer hollow heat-insulating glass 202 fixedly connected inside the first door and window frame 2 and the second door and window frame 201, and horizontal strip-shaped support rails 101 fixedly connected to the front and rear ends of the middle part of the upper and lower end faces of the inner part of the C-shaped cross-section support frame 1, and rectangular grooves 203 provided at the upper and lower ends of the first door and window frame 2 and the second door and window frame 201, with guide rollers 3 fixedly and rotatably connected to both sides of the inner side of each rectangular groove 203, the middle part of the guide rollers 3 being connected to the inner side of the rectangular groove 203. The front and rear ends of the frame are rotatably connected by a fixed shaft 301. The strip support rails 101 at the front ends of the upper and lower ends of the C-shaped cross-section support frame 1 are respectively inserted into the rectangular grooves 203 at the upper and lower ends of the first door and window frame 2. The guide rollers 3 inside the rectangular grooves 203 at the upper and lower ends of the first door and window frame 2 are respectively connected to the two strip support rails 101 at the front end. When the first door and window frame 2 and the second door and window frame 201 slide to the sides to close the metal door and window, the outer sides of the two first door and window frames 2 and the second door and window frame 201 are respectively inserted into the inner sides of the C-shaped cross-section support frame 1 and squeezed and adhered to the two first sound insulation cotton strips 102, thereby sealing the gap between the outer sides of the first door and window frame 2 and the second door and window frame 201 and the inner sides of the C-shaped cross-section support frame 1, and at the same time playing a sound insulation role.
[0025] Please see Figure 2 and Figure 4 The strip support rails 101 at the rear ends of the upper and lower end faces of the C-shaped cross-section support frame 1 are respectively inserted into the rectangular grooves 203 at the upper and lower ends of the second door and window frame 201. The guide rollers 3 inside the rectangular grooves 203 at the upper and lower ends of the second door and window frame 201 are respectively connected to the two strip support rails 101 at the rear ends. The front and rear end faces of each rectangular groove 203 and the front and rear ends of the strip support rail 101 are fixedly connected to the middle of each rectangular groove 203. When the first door and window frame 2 and the second door and window frame 201 slide laterally between the strip support rails 101 at the upper and lower ends of the C-shaped cross-section support frame 1, the two second sound insulation cotton strips 204 clamp the front and rear end faces of the strip support rail 101, thereby sealing the gap between the upper and lower ends of the first door and window frame 2 and the second door and window frame 201 and the upper and lower ends of the C-shaped cross-section support frame 1, and playing a sound insulation role. At the same time, it can also reduce the noise of the guide rollers 3 rolling along the strip support rails 101.
[0026] Please see Figure 3 and Figure 5A sealing strip assembly 4 is fixedly connected to one side of the inner end face of the first door / window frame 2 and the second door / window frame 201. The sealing strip assembly 4 includes a semi-circular cross-section sound insulation strip 401 and a wear-resistant surface layer 402. The wear-resistant surface layer 402 covers and is fixed to the outside of the semi-circular cross-section sound insulation strip 401. A rectangular movable groove 403 is provided in the middle of the interior of the semi-circular cross-section sound insulation strip 401. A tightening strip 405 is fixedly connected to the side of the rectangular movable groove 403 adjacent to the two sealing strip assemblies 4. Multiple springs 404 are vertically arranged at equal intervals inside the rectangular movable groove 403 and outside the tightening strip 405. Spring 404 is fixedly connected to top clamping strip 405. When the first door and window frame 2 and the second door and window frame 201 move to the sides to close, the inner end faces of the sealing strip assembly 4 on the first door and window frame 2 and the second door and window frame 201 are pressed together. When the sealing strip assembly 4 is pressed, it pushes the two top clamping strips 405 away from each other and compresses the spring 404 respectively. The spring 404 keeps pushing the top clamping strip 405, thereby keeping the top clamping strip 405 pushing the inner end faces of the two sealing strip assemblies 4 to clamp together, so as to seal the gap between the first door and window frame 2 and the second door and window frame 201 when they are closed.
[0027] Working principle: In use, the doors and windows are opened and closed by pushing the first door and window frame 2 and the second door and window frame 201 to slide towards each other along the strip support rail 101 inside the C-shaped cross-section support frame 1. When closed, the first door and window frame 2 and the second door and window frame 201 slide to their respective extreme positions. At this time: 1) The outer edges of the two door and window frames are inserted into both sides of the C-shaped cross-section support frame 1 and elastically sealed by the first sound insulation cotton strip 102; 2) The guide rollers 3 at the upper and lower ends roll on the strip support rail 101, while the second sound insulation cotton strip 204 in the rectangular groove 203 clamps the front and rear ends of the middle of the strip support rail 101 to eliminate the sliding gap; 3) The sealing strip assembly 4 on the inner side of the first door and window frame 2 and the second door and window frame 201 are pressed against each other, and the semi-circular cross-section sound insulation strip 401 is kept tightly fitted by the top strip 405 under the action of the spring 404, forming a double sealing interface. In this process, the first sound insulation strip 102, the second sound insulation strip 204 and the semi-circular cross-section sound insulation strip 401 together form a three-dimensional sound insulation barrier. Together with the double-layer hollow heat-insulating glass 202, it achieves multiple attenuation of sound waves and blockage of heat conduction paths, ultimately achieving excellent heat insulation and noise reduction effects.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A heat-insulating and noise-reducing metal door and window, comprising a C-shaped cross-section supporting frame (1), characterized in that: The C-shaped cross-section support frame (1) has a first sound insulation cotton strip (102) fixedly connected to both sides of the inner end face. The first door and window frame (2) and the second door and window frame (201) are slidably connected to the front and rear ends of the middle part of the C-shaped cross-section support frame (1). A sealing strip assembly (4) is fixedly connected to one side of the inner end face of the first door and window frame (2) and the second door and window frame (201). The sealing strip assembly (4) includes a semi-circular cross-section sound insulation strip (401) and a wear-resistant surface layer (402). The wear-resistant surface layer (402) is covered and fixed to the outside of the semi-circular cross-section sound insulation strip (401).
2. The heat-insulating and noise-reducing metal door and window according to claim 1, characterized in that: The first door and window frame (2) and the second door and window frame (201) are both fixedly connected with double-layer hollow heat-insulating glass (202).
3. The heat-insulating and noise-reducing metal door and window according to claim 1, characterized in that: The C-shaped cross-section support frame (1) has horizontal strip support rails (101) fixedly connected to the middle of the upper and lower end faces of the inside. The first door and window frame (2) and the second door and window frame (201) are provided with rectangular grooves (203) at the upper and lower ends. Each rectangular groove (203) has guide rollers (3) fixedly and rotatably connected to both sides of the inside. The middle of the guide rollers (3) is rotatably connected to the front and rear end faces of the inside of the rectangular groove (203) through a fixed shaft (301).
4. The heat-insulating and noise-reducing metal door and window according to claim 3, characterized in that: The strip support rails (101) at the front end of the upper and lower ends of the C-shaped cross-section support frame (1) are respectively inserted into the rectangular grooves (203) at the upper and lower ends of the first door and window frame (2). The guide rollers (3) inside the rectangular grooves (203) at the upper and lower ends of the first door and window frame (2) are respectively connected to the two strip support rails (101) at the front end in a rolling connection.
5. The heat-insulated and noise-reduced metal door and window according to claim 3, characterized in that: The strip support rails (101) at the rear ends of the upper and lower ends of the C-shaped cross-section support frame (1) are respectively inserted into the rectangular grooves (203) at the upper and lower ends of the second door and window frame (201). The guide rollers (3) inside the rectangular grooves (203) at the upper and lower ends of the second door and window frame (201) are respectively connected to the two strip support rails (101) at the rear ends in a rolling connection.
6. The heat-insulated and noise-reduced metal door and window according to claim 3, characterized in that: Each of the rectangular grooves (203) has a second sound-insulating cotton strip (204) fixedly connected to both the front and rear end faces inside and at both the front and rear ends of the middle of the strip support rail (101).
7. The heat-insulated and noise-reduced metal door and window according to claim 1, characterized in that: A rectangular movable groove (403) is provided in the middle of the semi-circular cross-section sound insulation strip (401). A top-tightening strip (405) is fixedly connected to one side adjacent to the two sealing strip assemblies (4) inside the rectangular movable groove (403). Multiple springs (404) are vertically arranged at equal intervals inside the rectangular movable groove (403) and outside the top-tightening strip (405). All of the multiple springs (404) are fixedly connected to the top-tightening strip (405).