A kind of enclosure structure with adjustable sound insulation and heat insulation effect

Abstract

The present invention discloses an enclosure structure with adjustable sound insulation and heat insulation effects, comprising an outer shell and an exterior layer, a sound insulation layer, and a heat insulation layer installed inside the outer shell. The exterior layer, the sound insulation layer, and the heat insulation layer are all fan-shaped and can be stretched and folded inside the outer shell. The exterior layer, the sound insulation layer, and the heat insulation layer are all connected to a driving device, and the driving device is controlled by a control device. During operation, the user controls the start and stop of the corresponding driving device through the control device to adjust the folding and unfolding of the exterior layer, the sound insulation layer, and the heat insulation layer. The present invention can be implemented in one go, meeting multiple scenarios and multiple environments, avoiding problems such as repeated waste of materials and repeated construction.

Description

Technical Field

[0001] The present invention relates to the field of enclosure structures, and in particular to an enclosure structure with adjustable sound insulation and heat insulation effects. Background Art

[0002] As people's living standards improve, their demands for spatial comfort in daily life are becoming increasingly stringent, particularly with regard to the acoustic environment and ambient temperature. These acoustic requirements primarily focus on sound insulation and noise reduction. Noise is primarily divided into low-frequency and medium-high-frequency noise. Noise reduction falls under the umbrella of environmental protection, while maintaining ambient temperature falls under the umbrella of comfort and energy conservation. Energy conservation and environmental protection are two key concerns in today's world. Highly efficient, innovative, and green energy-saving and environmentally friendly products and systems have become a key research focus for scientists worldwide. Current products for building floor insulation and sound insulation, from design to final use, have relatively single functions, either addressing only sound insulation, only heat insulation, or simply providing thermal insulation properties. However, due to changes in outdoor sound sources and seasonal variations, the requirements for sound insulation, thermal insulation, and thermal insulation properties of walls and floors often differ. Addressing these requirements simultaneously would require multiple construction processes within the same space, tailored to the specific environmental characteristics, a practical impossibility.

[0003] Within the audible range of human hearing, low-frequency sound refers to sounds below 500 Hz (an octave). There are five main sources of low-frequency noise in residential environments: elevators, transformers, water pumps in high-rise buildings, central air conditioning (including cooling towers), and traffic noise. Low-frequency noise is the most significant noise source in residential areas. Mid- and high-frequency sounds refer to sounds in the 2000-16000 Hz range. These sounds manifest as extremely subtle sounds in everyday life, such as a woman's voice, the rustling of mosquitoes, and the chirping of birds. Unlike mid- and high-frequency sounds, low-frequency sounds decay rapidly with distance or when encountering obstacles. For example, the noise level of a point source of high-frequency sound decreases by 6 decibels per 10 meters. Low-frequency noise, on the other hand, decays much more slowly. Its longer sound waves allow it to easily travel long distances through obstacles and penetrate walls into homes. Low-frequency noise is primarily controlled by increasing the low-frequency control capacity of enclosure structures, employing resonant sound-absorbing structures, and masking low-frequency noise through other sounds. This is the principle of resistive sound insulation, and commonly used structures include soundproof windows, doors, screens, rooms, sheets, walls, and lightweight composite structures, commonly referred to as sound insulation. Medium- and high-frequency noise, on the other hand, is controlled through isolation and absorption, a principle of resistive sound insulation. Commonly used structures include sound absorption and noise reduction, installation of silencers, sound barriers, and vibration reduction measures. These two principles have different principles and properties. In practice, due to the often uncertain nature of low-frequency, medium- and high-frequency sound sources, it is difficult to effectively achieve both principles of sound source intensity elimination in a single structure.

[0004] On the other hand, because buildings are located in a natural environment, with the change of seasons, the building envelope needs to provide insulation in the summer, heat preservation in the winter, and heat dissipation in the transition season. This difference in the heat transfer principles of the building envelope caused by seasonal changes has resulted in no single building envelope structure that can meet the needs of different seasons simultaneously. For summer insulation, internal insulation is usually used to promote the timely dissipation of heat absorbed by the wall to the outside. For winter insulation, external insulation is usually used to effectively utilize the heat stored in the wall to improve the thermal stability of the interior. In the transition season, the building envelope structure is expected to have good heat diffusion properties, effectively dissipating indoor heat and absorbing outdoor heat when needed. This dynamic heat transfer process has different heat transfer properties, so it is impossible to meet all the needs simultaneously by relying on a fixed building envelope structure.

[0005] Currently, there is no enclosure structure that can adjust the sound insulation and heat insulation according to the changes in seasons and scenes. The general practice is often to add sound insulation or heat insulation materials to the enclosure structure. The core is still to determine a fixed structure only for a specific requirement.

[0006] Therefore, it is necessary to develop a structure that can solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a building envelope system that can adjust the sound insulation, noise reduction, heat insulation and thermal insulation effects according to user needs, which can be implemented in one go and meet the needs of multiple scenarios and environments to solve the problems existing in the prior art.

[0008] The technical solution adopted to achieve the purpose of the present invention is as follows: an enclosure structure with adjustable sound insulation and heat insulation effect, including an outer shell and an exterior layer, a sound insulation layer and a heat insulation layer installed inside the outer shell.

[0009] The shell is a rectangular box with a hollow interior, and the side of the shell facing the noise source is open.

[0010] Three parallel sliding tracks are spaced apart at the top and bottom of the housing. The exterior, sound insulation, and heat insulation layers are all fan-shaped. The upper and lower ends of the exterior are slidably connected to the sliding tracks at the top and bottom of the housing, respectively. One end of the exterior, along its extension direction, is fixed to one end of the sliding track, while the other end is connected to drive device I. The exterior has an open side near the housing.

[0011] The upper and lower ends of the sound insulation layer are respectively slidably connected to the sliding tracks at the top and bottom of the shell. One end of the sound insulation layer along its expansion and contraction direction is fixed to one end of the sliding track, and the other end is connected to the driving device II.

[0012] The upper and lower ends of the heat insulation layer are respectively slidably connected to the sliding tracks at the top and bottom of the shell. One end of the heat insulation layer along its expansion and contraction direction is fixed to one end of the sliding track, and the other end is connected to the driving device III.

[0013] The drive devices I, II and III are all installed in the shell and the driving directions are consistent with the length direction of the sliding track. The drive devices I, II and III are all connected to the control device, and the control device is installed on the outer wall of the shell.

[0014] During operation, the user controls the start and stop of the corresponding driving device through the control device, and adjusts the folding and unfolding of the exterior layer, the sound insulation layer and the heat insulation layer.

[0015] Furthermore, the exterior decorative layer includes a number of exterior decorative panels, a number of columns I and a number of ball bearings I. When the exterior decorative layer is in a stretched state, the number of exterior decorative panels and the number of columns I are alternately arranged along the sliding track. The two vertical edges of the exterior decorative layer are columns I. The two vertical edges of each exterior decorative panel are respectively hinged to two adjacent columns I. The column I on one vertical edge of the exterior decorative layer is fixed to the end of the sliding track, and the upper and lower ends of the remaining columns I are installed in the sliding track through ball bearings I. The column I on the other vertical edge of the exterior decorative layer is connected to the driving device I.

[0016] Furthermore, the sound insulation layer includes a plurality of sound insulation boards, a plurality of columns II and a plurality of ball bearings II. When the user has a strong demand for sound insulation, that is, when the sound insulation layer is in a stretched state, the plurality of sound insulation boards and the plurality of columns II are alternately arranged along the sliding track. The two vertical edges of the sound insulation layer are both columns II. The two vertical edges of each sound insulation board are respectively hinged to two adjacent columns II. The columns II on one vertical edge of the sound insulation layer are fixed to the end of the sliding track, and the upper and lower ends of the remaining columns II are installed in the sliding track through ball bearings II. The columns II on the other vertical edge of the sound insulation layer are connected to the driving device II.

[0017] Furthermore, the thermal insulation layer includes a plurality of thermal insulation boards, a plurality of thermal insulation columns III and a plurality of ball bearings III. When the user has a strong demand for thermal insulation and heat preservation, that is, when the thermal insulation layer is in a stretched state, the plurality of thermal insulation boards and the plurality of columns III are alternately arranged along the sliding track. The two vertical edges of the thermal insulation layer are columns III. The two vertical edges of each thermal insulation board are respectively hinged to two adjacent columns III. The column III at one vertical edge of the thermal insulation layer is fixed to the end of the sliding track, and the upper and lower ends of the remaining columns III are installed in the sliding track through ball bearings III. The column III at the other vertical edge of the thermal insulation layer is connected to the driving device III.

[0018] Furthermore, the structures of the drive device I, drive device II and drive device III are consistent, and all include a stepper motor, a screw rod and a sliding nut. The output end of the stepper motor is connected to one end of the screw rod, the length direction of the screw rod is consistent with the length direction of the sliding track, and the sliding nut is screwed on the screw rod.

[0019] The exterior decoration layer, sound insulation layer and heat insulation layer are respectively connected to the sliding nuts of the corresponding driving devices. During operation, the control device controls the stepping motor to rotate forward and reverse, and the sliding nuts drive the exterior decoration layer, sound insulation layer and heat insulation layer to fold and unfold.

[0020] Furthermore, the control device includes a battery pack, a host computer, a signal receiver and a remote controller, the remote controller is connected to a signal transmitter, and the host computer is connected to the signal receiver and three stepper motors.

[0021] During operation, the battery pack provides power, and the user transmits a working signal for setting the stepper motor to the host computer through the remote control. The host computer receives the signal and controls the corresponding stepper motor to rotate in the set direction, driving the sliding nut to move.

[0022] Furthermore, the exterior panel is made of a damping composite material.

[0023] Furthermore, a honeycomb-shaped core is provided inside the sound insulation board, and the material of the core is meta-aramid.

[0024] Furthermore, the heat insulation board is made of glass fiber material.

[0025] The technical effect of the present invention is unquestionable. The present invention aims to address the single and specific characteristics of density, structure and function of traditional enclosure structures, and proposes an enclosure structure system that can adjust the sound insulation, noise reduction and heat insulation and thermal insulation effects according to user needs. It can be implemented in one go, meet multiple scenarios and multiple environments, and avoid problems such as repeated waste of materials and repeated construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 Schematic diagram of the exterior layer structure.

[0028] Figure 3 Schematic diagram of the sound insulation layer structure;

[0029] Figure 4 Schematic diagram of the thermal insulation layer structure;

[0030] Figure 5 Schematic diagram of the control device.

[0031] In the figure: shell 1, exterior layer 2, exterior panel 201, pillar I 202, ball I 203, sound insulation layer 3, sound insulation board 301, pillar II 302, ball II 303, heat insulation layer 4, heat insulation board 401, heat insulation pillar III 402, ball III 403, control device 6, battery pack 601, host computer 602 and signal receiver 603. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the following examples, but it should not be understood that the scope of the present invention is limited to the following examples. Without departing from the above technical ideas of the present invention, various substitutions and modifications can be made according to common technical knowledge and customary means in the art, and all should be included in the scope of protection of the present invention.

[0033] Example 1:

[0034] See also Figure 1 This embodiment discloses an enclosure structure with adjustable sound insulation and heat insulation effects, including an outer shell 1 and an outer decoration layer 2, a sound insulation layer 3 and a heat insulation layer 4 installed inside the outer shell 1.

[0035] The housing 1 is a rectangular box with a hollow interior, and the side of the housing 1 facing the noise source is open.

[0036] Three parallel, spaced sliding tracks are arranged at intervals on the top and bottom of the housing 1. The exterior layer 2, sound insulation layer 3, and heat insulation layer 4 are all fan-shaped. The upper and lower ends of the exterior layer 2 are slidably connected to the sliding tracks at the top and bottom of the housing 1, respectively. One end of the exterior layer 2, along its extension direction, is fixed to one end of the sliding track, while the other end is connected to the drive device I. The exterior layer 2 has an open side adjacent to the housing 1.

[0037] The upper and lower ends of the sound insulation layer 3 are respectively slidably connected to the sliding tracks at the top and bottom of the shell 1. One end of the sound insulation layer 3 along its extension direction is fixed to one end of the sliding track, and the other end is connected to the driving device II.

[0038] The upper and lower ends of the heat insulation layer 4 are respectively slidably connected to the sliding tracks at the top and bottom of the shell 1. One end of the heat insulation layer 4 along its extension direction is fixed to one end of the sliding track, and the other end is connected to the driving device III.

[0039] The drive devices I, II and III are all installed in the shell 1 and the driving directions are consistent with the length direction of the sliding track. The drive devices I, II and III are all connected to the control device 6, which is installed on the outer wall of the shell 1.

[0040] See also Figure 2The exterior layer 2 includes several exterior panels 201, several columns I 202, and several ball bearings I 203. When the exterior layer 2 is in its extended state, the panels 201 and columns I 202 are alternately arranged along the sliding track. The two vertical edges of the exterior layer 2 are columns I 202. Each exterior panel 201 has two vertical edges hinged to two adjacent columns I 202. The columns I 202 on one vertical edge of the exterior layer 2 are fixed to the end of the sliding track. The upper and lower ends of the remaining columns I 202 are mounted in the sliding track via ball bearings I 203. The columns I 202 on the other vertical edge of the exterior layer 2 are connected to the drive device I. The exterior panels 201 are made of a damping composite material.

[0041] See also Figure 3 The sound insulation layer 3 comprises several sound insulation panels 301, several columns II 302, and several balls II 303. When the user's need for sound insulation is high, that is, when the sound insulation layer 3 is in its extended state, the sound insulation panels 301 and the columns II 302 are arranged alternately along the sliding track. The two vertical edges of the sound insulation layer 3 are each columns II 302. The two vertical edges of each sound insulation panel 301 are hinged to two adjacent columns II 302. The columns II 302 on one vertical edge of the sound insulation layer 3 are fixed to the end of the sliding track, while the upper and lower ends of the remaining columns II 302 are mounted in the sliding track via balls II 303. The columns II 302 on the other vertical edge of the sound insulation layer 3 are connected to the drive device II. The interior of the sound insulation panels 301 is provided with a honeycomb core made of meta-aramid.

[0042] See also Figure 4 The insulation layer 4 includes several insulation panels 401, several insulation columns III 402, and several ball bearings III 403. When the user has a strong need for insulation and heat preservation, that is, when the insulation layer 4 is in an extended state, the insulation panels 401 and the columns III 402 are alternately arranged along the sliding track. The two vertical edges of the insulation layer 4 are columns III 402. The two vertical edges of each insulation panel 401 are hinged to two adjacent columns III 402. The columns III 402 on one vertical edge of the insulation layer 4 are fixed to the end of the sliding track. The upper and lower ends of the remaining columns III 402 are installed in the sliding track via ball bearings III 403. The columns III 402 on the other vertical edge of the insulation layer 4 are connected to the drive device III. The insulation panels 401 are made of fiberglass.

[0043] The structures of the driving devices I, II and III are consistent, and all include a stepping motor, a screw and a sliding nut. The output end of the stepping motor is connected to one end of the screw, the length direction of the screw is consistent with the length direction of the sliding track, and the sliding nut is screwed on the screw.

[0044] The exterior layer 2, sound insulation layer 3 and heat insulation layer 4 are respectively connected to the sliding nuts of the corresponding driving devices. During operation, the control device 6 controls the forward and reverse rotation of the stepping motor, and the sliding nuts drive the exterior layer 2, sound insulation layer 3 and heat insulation layer 4 to fold and unfold, thereby realizing sound insulation and heat insulation functions.

[0045] See also Figure 5 The control device 6 includes a battery pack 601, a host computer 602, a signal receiver 603, and a remote control. The remote control is connected to a signal transmitter, and the host computer 602 is connected to the signal receiver 603 and three stepper motors. During operation, the battery pack 601 provides power. The user uses the remote control to transmit a signal to the host computer 602 to set the operating direction of the stepper motor. The host computer 602 receives the signal and controls the corresponding stepper motor to rotate in the set direction, driving the sliding nut to move.

[0046] It is worth noting that this embodiment can adjust the sound insulation and thermal insulation effects of the enclosing structure within a structure according to changes in ambient noise and hot and cold environments, combined with the needs of indoor occupants, and at the same time achieve adjustable sound insulation, thermal insulation and heat insulation effects within a structure.

[0047] Example 2:

[0048] See also Figure 1 This embodiment discloses an enclosure structure with adjustable sound insulation and heat insulation effects, including an outer shell 1 and an outer decoration layer 2, a sound insulation layer 3 and a heat insulation layer 4 installed inside the outer shell 1.

[0049] The housing 1 is a rectangular box with a hollow interior, and the side of the housing 1 facing the noise source is open.

[0050] Three parallel, spaced sliding tracks are arranged at intervals on the top and bottom of the housing 1. The exterior layer 2, sound insulation layer 3, and heat insulation layer 4 are all fan-shaped. The upper and lower ends of the exterior layer 2 are slidably connected to the sliding tracks at the top and bottom of the housing 1, respectively. One end of the exterior layer 2, along its extension direction, is fixed to one end of the sliding track, while the other end is connected to the drive device I. The exterior layer 2 has an open side adjacent to the housing 1.

[0051] The upper and lower ends of the sound insulation layer 3 are respectively slidably connected to the sliding tracks at the top and bottom of the shell 1. One end of the sound insulation layer 3 along its extension direction is fixed to one end of the sliding track, and the other end is connected to the driving device II.

[0052] The upper and lower ends of the heat insulation layer 4 are respectively slidably connected to the sliding tracks at the top and bottom of the shell 1. One end of the heat insulation layer 4 along its extension direction is fixed to one end of the sliding track, and the other end is connected to the driving device III.

[0053] The drive devices I, II and III are all installed in the shell 1 and the driving directions are consistent with the length direction of the sliding track. The drive devices I, II and III are all connected to the control device 6, which is installed on the outer wall of the shell 1.

[0054] During operation, the user controls the start and stop of the corresponding driving device through the control device 6 to adjust the folding and unfolding of the exterior layer 2 , the sound insulation layer 3 and the heat insulation layer 4 .

[0055] Example 3:

[0056] The main structure of this embodiment is the same as that of embodiment 2. Figure 2 The exterior decorative layer 2 includes a plurality of exterior decorative panels 201, a plurality of columns I 202 and a plurality of ball bearings I 203. When the exterior decorative layer 2 is in a stretched state, the plurality of exterior decorative panels 201 and the plurality of columns I 202 are alternately arranged along the sliding track. The two vertical edges of the exterior decorative layer 2 are both columns I 202. The two vertical edges of each exterior decorative panel 201 are respectively hinged to two adjacent columns I 202. The column I 202 on one vertical edge of the exterior decorative layer 2 is fixed to the end of the sliding track, and the upper and lower ends of the remaining columns I 202 are installed in the sliding track through ball bearings I 203. The column I 202 on the other vertical edge of the exterior decorative layer 2 is connected to the driving device I.

[0057] Example 4:

[0058] The main structure of this embodiment is the same as that of embodiment 2. Figure 3 The sound insulation layer 3 includes a plurality of sound insulation boards 301, a plurality of columns II 302, and a plurality of balls II 303. When the sound insulation layer 3 is in an extended state, the plurality of sound insulation boards 301 and the plurality of columns II 302 are alternately arranged along the sliding track. The two vertical edges of the sound insulation layer 3 are both columns II 302. The two vertical edges of each sound insulation board 301 are respectively hinged to two adjacent columns II 302. The columns II 302 on one vertical edge of the sound insulation layer 3 are fixed to the end of the sliding track, and the upper and lower ends of the remaining columns II 302 are installed in the sliding track through the balls II 303. The columns II 302 on the other vertical edge of the sound insulation layer 3 are connected to the driving device II.

[0059] Example 5:

[0060] The main structure of this embodiment is the same as that of embodiment 2. Figure 4The thermal insulation layer 4 includes a plurality of thermal insulation boards 401, a plurality of thermal insulation columns III 402 and a plurality of ball bearings III 403. When the thermal insulation layer 4 is in a stretched state, the plurality of thermal insulation boards 401 and the plurality of columns III 402 are alternately arranged along the sliding track. The two vertical edges of the thermal insulation layer 4 are both columns III 402. The two vertical edges of each thermal insulation board 401 are respectively hinged to two adjacent columns III 402. The columns III 402 on one vertical edge of the thermal insulation layer 4 are fixed to the end of the sliding track, and the upper and lower ends of the remaining columns III 402 are installed in the sliding track through ball bearings III 403. The columns III 402 on the other vertical edge of the thermal insulation layer 4 are connected to the driving device III.

[0061] Example 6:

[0062] The main structure of this embodiment is the same as that of embodiment 2. Furthermore, the structures of the driving device I, driving device II and driving device III are consistent, and all include a stepping motor, a screw rod and a sliding nut. The output end of the stepping motor is connected to one end of the screw rod, the length direction of the screw rod is consistent with the length direction of the sliding track, and the sliding nut is screwed on the screw rod.

[0063] The exterior layer 2, sound insulation layer 3 and heat insulation layer 4 are respectively connected to the sliding nuts of the corresponding driving devices. During operation, the control device 6 controls the forward and reverse rotation of the stepping motor, and the sliding nuts drive the exterior layer 2, sound insulation layer 3 and heat insulation layer 4 to fold and unfold.

[0064] Example 7:

[0065] The main structure of this embodiment is the same as that of embodiment 6. Figure 5 The control device 6 includes a battery pack 601, a host computer 602, a signal receiver 603 and a remote controller. The remote controller is connected to a signal transmitter. The host computer 602 is connected to the signal receiver 603 and three stepping motors.

[0066] During operation, the battery pack 601 provides power, and the user transmits a working signal for setting the stepper motor to the host computer 602 through the remote control. The host computer 602 receives the signal and controls the corresponding stepper motor to rotate in the set direction, driving the sliding nut to move.

[0067] Example 8:

[0068] The main structure of this embodiment is the same as that of embodiment 3. Furthermore, the exterior panel 201 is made of a damping composite material.

[0069] Example 9:

[0070] The main structure of this embodiment is the same as that of embodiment 4. Furthermore, a honeycomb-shaped core is provided inside the sound insulation board 301, and the material of the core is meta-aramid.

[0071] Example 10:

[0072] The main structure of this embodiment is the same as that of embodiment 5. Furthermore, the heat insulation board 401 is made of glass fiber material.

Claims

1. A building envelope with adjustable sound insulation and heat insulation, characterized by: It comprises a shell (1), and an exterior decoration layer (2), a sound insulation layer (3), and a heat insulation layer (4) installed inside the shell (1); The housing (1) is a rectangular box with a hollow interior, and the side of the housing (1) facing the noise source is open; Three sliding rails are arranged in parallel and spaced apart at the top and bottom of the shell (1); the outer decorative layer (2), the sound insulation layer (3) and the heat insulation layer (4) are all in the shape of a folding fan; the upper and lower ends of the outer decorative layer (2) are respectively slidably connected to the sliding rails at the top and bottom of the shell (1); one end of the outer decorative layer (2) along its telescopic direction is fixed to one end of the sliding rail, and the other end is connected to the driving device I; the outer decorative layer (2) has an open side close to the shell (1); The upper and lower ends of the sound insulation layer (3) are respectively slidably connected to the sliding tracks at the top and bottom of the housing (1); one end of the sound insulation layer (3) along its telescopic direction is fixed to one end of the sliding track, and the other end is connected to the driving device II; The upper and lower ends of the heat insulating layer (4) are respectively slidably connected to the sliding rails at the top and bottom of the housing (1); one end of the heat insulating layer (4) along its telescopic direction is fixed to one end of the sliding rail, and the other end is connected to the driving device III; The driving device I, the driving device II and the driving device III are all installed in the housing (1) and the driving directions are consistent with the length direction of the sliding track. The driving device I, the driving device II and the driving device III are all connected to the control device (6), and the control device (6) is installed on the outer wall of the housing (1); The control device (6) controls the start and stop of the corresponding driving device, and adjusts the folding and unfolding of the exterior layer (2), the sound insulation layer (3), and the heat insulation layer (4); The sound insulation layer (3) comprises a plurality of sound insulation boards (301), a plurality of columns II (302) and a plurality of balls II (303). When the sound insulation layer (3) is in a stretched state, the plurality of sound insulation boards (301) and the plurality of columns II (302) are alternately arranged along the sliding track. The two vertical edges of the sound insulation layer (3) are both columns II (302). The two vertical edges of each sound insulation board (301) are respectively hinged to two adjacent columns II (302). The columns II (302) at one vertical edge of the sound insulation layer (3) are fixed to the end of the sliding track. The upper and lower ends of the remaining columns II (302) are all installed in the sliding track through the balls II (303). The columns II (302) at the other vertical edge of the sound insulation layer (3) are connected to the driving device II. The heat insulation layer (4) includes a plurality of heat insulation boards (401), a plurality of heat insulation columns III (402) and a plurality of ball bearings III (403). When the heat insulation layer (4) is in a stretched state, the plurality of heat insulation boards (401) and the plurality of columns III (402) are alternately arranged along the sliding track. The two vertical edges of the heat insulation layer (4) are both columns III (402). The two vertical edges of each heat insulation board (401) are respectively hinged to two adjacent columns III (402). The columns III (402) at one vertical edge of the heat insulation layer (4) are fixed to the end of the sliding track. The upper and lower ends of the remaining columns III (402) are installed in the sliding track through the ball bearings III (403). The columns III (402) at the other vertical edge of the heat insulation layer (4) are connected to the driving device III. The outer decoration layer (2) includes a plurality of outer decoration panels (201), a plurality of columns I (202) and a plurality of ball bearings I (203). When the outer decoration layer (2) is in a stretched state, the plurality of outer decoration panels (201) and the plurality of columns I (202) are alternately arranged along the sliding track. The two vertical edges of the outer decoration layer (2) are both columns I (202). The two vertical edges of each outer decoration panel (201) are respectively hinged to two adjacent columns I (202). The column I (202) at one vertical edge of the outer decoration layer (2) is fixed to the end of the sliding track. The upper and lower ends of the remaining columns I (202) are installed in the sliding track through the ball bearings I (203). The column I (202) at the other vertical edge of the outer decoration layer (2) is connected to the driving device I. The structures of the driving devices I, II and III are the same, and all include a stepping motor, a lead screw and a sliding nut. The output end of the stepping motor is connected to one end of the lead screw, the length direction of the lead screw is consistent with the length direction of the sliding track, and the sliding nut is screwed on the lead screw. The outer decoration layer (2), the sound insulation layer (3) and the heat insulation layer (4) are respectively connected to the sliding nuts of the corresponding driving devices, the control device (6) controls the forward and reverse rotation of the stepping motor, and the sliding nuts drive the outer decoration layer (2), the sound insulation layer (3) and the heat insulation layer (4) to fold and unfold; The control device (6) includes a battery pack (601), a host computer (602), a signal receiver (603) and a remote controller, wherein the remote controller is connected to a signal transmitter, and the host computer (602) is connected to the signal receiver (603) and three stepping motors; The control device (6) controls the start and stop of the corresponding driving device, and adjusts the folding and unfolding of the exterior layer (2), the sound insulation layer (3), and the heat insulation layer (4); The battery pack (601) provides power, and the user transmits a working signal for setting the stepping motor to the upper computer (602) via a remote controller. The upper computer (602) receives the signal and controls the corresponding stepping motor to rotate in a set direction, thereby driving the sliding nut to move. The exterior decorative plate (201) is made of a damping composite material; The interior of the sound insulation board (301) is provided with a honeycomb-shaped sandwich core, and the material of the sandwich core is meta-aramid; The heat insulation board (401) is made of glass fiber material.

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