Automatic sound insulation and dustproof device, door with the device and preparation method thereof

Through the telescopic mechanism and lifting assembly combined with the automatic lifting of dustproof strips, the problem of wear of the sealing strip at the bottom of traditional sound insulation doors is solved, and efficient sealing and sound insulation effects are achieved, and dustproof, light transmission and heat insulation functions are taken into account.

CN115680460BActive Publication Date: 2025-08-29DEHUA TB NEW DECORATION MATERIAL CO LTD
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Patent Information

Application Number
CN202211548811.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-05
Publication Date
2025-08-29
Estimated Expiration
2042-12-05

AI Technical Summary

Technical Problem

The bottom sealing strip of traditional sound insulation doors is prone to wear, resulting in the gap at the bottom of the door being unable to be effectively sealed, affecting the sound insulation effect, and the fixed sealing strip leads to a shortened service life.

Method used

The telescopic mechanism and lifting components are used to combine dust-proof strips to automatically lift and lower the dust-proof strips through the lever principle. The opening and closing door action is used to drive the expansion and contraction of the dust-proof strips, prevent the wear of the sealing strips and improve the sealing effect.

Benefits of technology

It effectively prevents dust-proof bars from wear, improves the sealing performance of the gap between the door and the ground, and achieves a comprehensive effect of sound insulation, dustproof, light transmission, pet hair protection and heat insulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses an automatic sound insulation and dustproof device and a door with the device and a preparation method thereof, relating to the technical field of doors, including a telescopic mechanism, the telescopic mechanism comprising a first U-shaped fixing block and a second U-shaped fixing block, the first U-shaped fixing block and the second U-shaped fixing block both being provided with flanges, bolt holes being provided on the flanges, sliding grooves being provided on the inner side walls of the first U-shaped fixing block and the second U-shaped fixing block, a slider being slidably connected in the sliding groove, a connecting shaft being provided on the slider, a fixed shaft being provided on one side of the connecting shaft, a first traction rod being rotatably connected to the connecting shaft, a second traction rod being rotatably connected to the fixed shaft, the first traction rod and the second traction rod being staggered, and being hinged at the staggered position of the first traction rod and the second traction rod by a rotating shaft; a lifting assembly is provided on one side of the telescopic mechanism, the telescopic mechanism is used to control the lifting and lowering of the lifting assembly, a dustproof strip is connected below the lifting assembly, and the dustproof strip can be extended and retracted by opening and closing the door.
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Description

Technical Field

[0001] The present invention relates to the technical field of doors, and more particularly to an automatic sound insulation and dustproof device, a door with the device, and a preparation method thereof. Background Art

[0002] Noise: Sound with chaotic pitch and intensity variations, sounding dissonant. It is produced by the irregular vibrations of a sound-producing body (as distinct from musical sound). From a physics perspective, noise is the sound produced by the irregular vibrations of a sound-producing body. From a physiological perspective, it is any sound that interferes with normal rest, study, or work, or disrupts the sounds people want to hear. In this sense, noise comes from many sources, such as the hum of cars on the street, conversations in a quiet library, the hum of machinery on a construction site, and the excessive volume of a neighbor's television.

[0003] Long-term work in a noisy environment can also impair neurological function. Laboratory experiments on humans have shown that exposure to noise can alter brainwaves. Noise can disrupt the balance between excitation and inhibition in the cerebral cortex, leading to abnormal conditioned reflexes. Some patients experience persistent headaches, neurasthenia, and cerebral nerve dysfunction. Symptoms are closely related to the noise intensity to which they are exposed. For example, when noise levels are 80-85 decibels, workers often experience irritability and fatigue, with headaches often occurring in the temporal and frontal regions. At 95-120 decibels, workers often experience dull pain in the front of the head, accompanied by irritability, sleep disturbances, dizziness, and memory loss. At 140-150 decibels, noise levels can not only cause ear problems but also lead to fear and increased nervous system tension. Therefore, reducing or isolating noise is an urgent issue that needs to be addressed.

[0004] Currently used soundproof doors are designed to ensure quietness within a space. Traditional soundproof doors feature wooden frames and wooden panels. Soundproofing materials such as glass wool or rock wool are embedded within the panel core, and the door seams are sealed with sponge rubber strips. This provides a certain degree of sound insulation by isolating the sound source. However, these soundproof doors generally lack a sealing strip at the bottom, resulting in gaps and inadequate soundproofing. Some doors also have a seal at the bottom, but this is fixed and prone to wear from prolonged friction with the floor. Summary of the Invention

[0005] The present invention provides an automatic sound insulation and dustproof device, a door with the device and a preparation method thereof, aiming to solve the above-mentioned problems in the prior art.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] An automatic sound insulation and dustproof device includes a telescopic mechanism, the telescopic mechanism including a first U-shaped fixing block and a second U-shaped fixing block, the first U-shaped fixing block and the second U-shaped fixing block are both provided with flanges, the flanges are provided with bolt holes, the inner side walls of the first U-shaped fixing block and the second U-shaped fixing block are both provided with sliding grooves, a slider is slidably connected in the sliding groove, a connecting shaft is provided on the slider, a fixed shaft is provided on one side of the connecting shaft, a first traction rod is rotatably connected to the connecting shaft, a second traction rod is rotatably connected to the fixed shaft, the first traction rod and the second traction rod are staggered, and the first traction rod and the second traction rod are hinged at the staggered position by a rotating shaft;

[0008] A lifting assembly is provided on one side of the telescopic mechanism, and the telescopic mechanism is used to control the lifting and lowering of the lifting assembly. A dustproof strip is connected below the lifting assembly.

[0009] As a preferred embodiment of the present invention, the first traction rod and the second traction rod are both U-shaped, one end of the first traction rod is rotatably connected to a fixed shaft on the first U-shaped fixing block, and the other end of the first traction rod is rotatably connected to a connecting shaft on the second U-shaped fixing block;

[0010] The connection mode of the second traction rod is opposite to that of the first traction rod.

[0011] As a preferred solution of the present invention, the lifting assembly includes a long strip, a protruding rod is fixedly connected to the upper side of the long strip, a first bevel is provided at the upper end of the protruding rod, and a second bevel is provided below the slider, and the first bevel and the second bevel are arranged to slide against each other.

[0012] As a preferred solution of the present invention, the dustproof strip is connected to the bottom of the long plate, and return springs are connected to the bottom of both sides of the long plate.

[0013] A door comprises a door frame and a door leaf, wherein the door frame is embedded in a wall, the door leaf is mounted on the door frame through hinges, and the automatic sound insulation and dustproof device is mounted at the bottom of the door frame and the door leaf.

[0014] As a preferred solution of the present invention, a first embedding groove is provided on the bottom side of the door frame, and a second embedding groove matching the first embedding groove is provided on the side of the door leaf. A first U-shaped fixing block is embedded in the first embedding groove, and a second U-shaped fixing block is embedded in the second embedding groove. The flanges of the first U-shaped fixing block and the second U-shaped fixing block are clamped in the first embedding groove and the second embedding groove, and the first U-shaped fixing block and the second U-shaped fixing block are fixed by bolts.

[0015] As a preferred solution of the present invention, a long hole is provided at the bottom of the door leaf, and the lifting assembly is installed in the long hole.

[0016] A method for preparing a door with an automatic sound insulation and dustproof device, the method is as follows:

[0017] Install the door leaf on the door frame;

[0018] There is a long hole at the bottom of the door leaf. Install the lifting assembly in the long hole. Adjust the position of the lifting assembly so that the long plate of the lifting assembly can move up and down. The return springs are installed on both sides of the long plate. When the long plate is pressed down, it can be reset.

[0019] The bottom side surfaces of the door leaf and the door frame are provided with embedding grooves, the first U-shaped fixing block and the second U-shaped fixing block are embedded in the embedding grooves, and the first traction rod and the second traction rod are connected to the first U-shaped fixing block and the second U-shaped fixing block respectively;

[0020] The first oblique surface of the protruding rod on the adjusting long plate and the second oblique surface of the sliding block are offset against each other;

[0021] When the door is opened, the slider retracts and the long plate moves upward due to the elastic force of the return spring;

[0022] When the door is closed, the slider is squeezed, and the second bevel surface presses against the first bevel surface, causing the protruding rod to drive the long plate to move downward;

[0023] Finally, install the dustproof strip under the long board.

[0024] As a preferred solution of the present invention, the dustproof strip is made of a soft rubber material, and the dustproof strip is embedded under the long plate.

[0025] Compared with the prior art, the advantages of the present invention are:

[0026] (1) The telescopic mechanism can be used to open and close the door. The first traction rod and the second traction rod can be extended and retracted, thereby squeezing the slider to slide in the slide groove. The movement of the slider can drive the lifting assembly to move up and down, thereby driving the dust strip to move up and down. When closing the door, the slider moves, and the second bevel on the slider squeezes the first bevel on the protruding rod, so that the slider can squeeze the protruding rod to move downward, thereby driving the long plate to move downward. The dust strip connected below the long plate can seal the gap at the bottom of the door; when opening the door, the movement direction of the slider is opposite to that when closing the door. The return spring set below the long plate applies elastic force to move the long plate upward, so that the dust strip no longer seals the door gap. The purpose of this setting is to effectively prevent the wear of the dust strip and also take into account the efficiency of sound insulation and sealing;

[0027] (2) Using the lever principle, when the door is opened, the lifting assembly drives the dust strip to retract; when the door is closed, the dust strip at the bottom automatically extends to seal the gap at the bottom of the door. This can close the gap between the conventional door and the ground, thereby isolating odors, preventing light transmission, preventing dust, pet hair, reptiles, and heat insulation (because when the air conditioner is turned on in the summer, the cold air will go downwards, and the dust strip can prevent the cold air from escaping, thus saving electricity). BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ;

[0029] Figure 2 Schematic diagram of the three-dimensional structure of the present invention Figure 2 ;

[0030] Figure 3 Schematic diagram of the cross-sectional structure of the telescopic mechanism in an embodiment of the present invention;

[0031] Figure 4 Schematic diagram of the telescopic mechanism in an embodiment of the present invention;

[0032] Figure 5 is a partial cross-sectional schematic diagram of a lifting assembly in an embodiment of the present invention;

[0033] Figure 6 In the embodiment of the present invention Figure 5 A in the figure is an enlarged structural diagram.

[0034] Description of the numbers in the figure:

[0035] 1. Telescopic mechanism; 101. First U-shaped fixing block; 102. Second U-shaped fixing block; 103. Flange; 104. Bolt hole; 105. Slide groove; 106. Slider; 107. Connecting shaft; 108. Fixed shaft; 109. First traction rod; 1010. Second traction rod; 1011. Rotating shaft; 1012. Second beveled surface; 2. Lifting assembly; 201. Dustproof strip; 202. Long strip; 203. Protruding rod; 204. First beveled surface; 205. Return spring; 3. Door frame; 301. First embedded groove; 302. Second embedded groove; 4. Door leaf; 401. Long strip hole; 5. Hinge. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0039] Example 1

[0040] See also Figure 1-6 , an automatic sound insulation and dustproof device, including a telescopic mechanism 1, the telescopic mechanism 1 includes a first U-shaped fixing block 101 and a second U-shaped fixing block 102, the first U-shaped fixing block 101 and the second U-shaped fixing block 102 are both provided with a flange 103, the flange 103 is provided with a bolt hole 104, the first U-shaped fixing block 101 and the second U-shaped fixing block 102 are both provided with a slide groove 105 on the inner side wall, a slider 106 is slidably connected in the slide groove 105, a connecting shaft 107 is provided on the slider 106, a fixed shaft 108 is provided on one side of the connecting shaft 107, a first traction rod 109 is rotatably connected to the connecting shaft 107, and a second traction rod 1010 is rotatably connected to the fixed shaft 108, the first traction rod 109 and the second traction rod 1010 are staggered, and the first traction rod 109 and the second traction rod 1010 are hinged at the staggered position by a rotating shaft 1011;

[0041] A lifting assembly 2 is provided on one side of the telescopic mechanism 1 . The telescopic mechanism 1 is used to control the lifting and lowering of the lifting assembly 2 . A dustproof strip 201 is connected below the lifting assembly 2 .

[0042] A dustproof strip 201 is set at the bottom of the door (a silent strip is added under the door gap). Using the lever principle, when the door is opened, the lifting component 2 drives the dustproof strip 201 to retract;

[0043] When the door is closed, the dustproof strip 201 at the bottom automatically extends to seal the gap at the bottom of the door.

[0044] Advantages: It can close the gap between the regular door and the ground, thereby isolating odors, preventing light from penetrating, dust, pet hair, reptiles, and heat insulation (because if the air conditioner is turned on in the room in summer, the cold air will go downwards, and setting up dust strips can prevent the cold air from escaping, thus saving electricity bills).

[0045] The first traction rod 109 and the second traction rod 1010 are both U-shaped. One end of the first traction rod 109 is rotatably connected to the fixed shaft 108 on the first U-shaped fixing block 101, and the other end of the first traction rod 109 is rotatably connected to the connecting shaft 107 on the second U-shaped fixing block 102.

[0046] The connection mode of the second traction rod 1010 is opposite to that of the first traction rod 109 .

[0047] Specifically, the telescopic mechanism 1 can be used to open and close the door, and the first traction rod 109 and the second traction rod 1010 can be extended and retracted, thereby squeezing the slider 106 to slide in the slide groove 105. The movement of the slider 106 can drive the lifting assembly 2 to rise and fall, thereby driving the dust strip 201 to rise and fall.

[0048] Example 2

[0049] See also Figure 1-6 The lifting assembly 2 includes a long plate 202, a protruding rod 203 is fixedly connected to the upper side of the long plate 202, a first beveled surface 204 is provided on the upper end of the protruding rod 203, and a second beveled surface 1012 is provided below the slider 106, and the first beveled surface 204 and the second beveled surface 1012 are arranged to slide against each other.

[0050] The dustproof strip 201 is connected to the bottom of the long plate 202 , and return springs 205 are connected to the bottom of both sides of the long plate 202 .

[0051] The door is opened by sliding the slider 106 in the opposite direction to that when closing the door, and the return spring 205 provided under the long strip 202 applies elastic force to move the long strip 202 upward so that the dust strip 201 no longer seals the door gap. The purpose of this arrangement is to effectively prevent the wear of the dust strip 201 while also taking into account the efficiency of sound insulation and sealing.

[0052] Example 3

[0053] See also Figure 1-6 A door comprises a door frame 3 and a door leaf 4. The door frame 3 is embedded in the wall. The door leaf 4 is installed on the door frame 3 through a hinge 5. An automatic sound insulation and dustproof device is installed at the bottom of the door frame 3 and the door leaf 4.

[0054] A first embedding groove 301 is provided on the bottom side of the door frame 3, and a second embedding groove 302 matching the first embedding groove 301 is provided on the side of the door leaf 4. The first U-shaped fixing block 101 is embedded in the first embedding groove 301, and the second U-shaped fixing block 102 is embedded in the second embedding groove 302. The flanges 103 of the first U-shaped fixing block 101 and the second U-shaped fixing block 102 are clamped in the first embedding groove 301 and the second embedding groove 302, and the first U-shaped fixing block 101 and the second U-shaped fixing block 102 are fixed by bolts.

[0055] An elongated hole 401 is formed at the bottom of the door leaf 4 , and the lifting assembly 2 is installed in the elongated hole 401 .

[0056] The first embedding groove 301 and the second embedding groove 302 opened on the lower side of the door frame 3 and the door leaf 4 are used to install the telescopic mechanism 1 of the automatic sound insulation and dustproof device. The long hole 401 opened at the bottom of the door leaf 4 is used to install the lifting component 2. The telescopic mechanism 1 is set to control the lifting and lowering of the lifting component 2 by opening and closing the door. The lifting and lowering of the lifting component 2 can drive the lifting and lowering of the dustproof strip 201.

[0057] Example 4

[0058] A method for preparing a door with an automatic sound insulation and dustproof device, the method is as follows:

[0059] Install the door leaf 4 on the door frame 3;

[0060] The bottom of the door leaf 4 is provided with an elongated hole 401. The lifting assembly 2 is installed in the elongated hole 401. The position of the lifting assembly 2 is adjusted so that the elongated plate 202 of the lifting assembly 2 can move up and down. The return springs 205 are installed on both sides of the elongated plate 202. When the elongated plate 202 is pressed down, it can be reset.

[0061] The bottom side surfaces of the door leaf 4 and the door frame 3 are provided with embedding grooves, into which the first U-shaped fixing block 101 and the second U-shaped fixing block 102 are embedded, and the first traction rod 109 and the second traction rod 1010 are connected to the first U-shaped fixing block 101 and the second U-shaped fixing block 102 respectively;

[0062] Adjust the first beveled surface 204 of the protruding rod 203 on the long plate 202 to abut against the second beveled surface 1012 of the slider 106;

[0063] When the door is opened, the slider 106 retracts, and due to the elastic force of the return spring 205, the long plate 202 moves upward;

[0064] When the door is closed, the slider 106 is squeezed, and the second beveled surface 1012 presses against the first beveled surface 204, causing the protruding rod 203 to drive the long strip 202 to move downward;

[0065] Finally, the dustproof strip 201 is installed below the long plate 202 .

[0066] As a preferred solution of the present invention, the dustproof strip 201 is made of a soft rubber material, and the dustproof strip 201 is embedded under the long plate 202.

[0067] Working principle: The telescopic mechanism 1 can be used to open and close the door. The first traction rod 109 and the second traction rod 1010 can be extended and retracted, thereby squeezing the slider 106 to slide in the slide groove 105. The movement of the slider 106 can drive the lifting assembly 2 to move up and down, thereby driving the dust strip 201 to move up and down. When closing the door, the slider 106 moves, and the second beveled surface 1012 on the slider 106 squeezes the first beveled surface 204 on the protruding rod 203, so that the slider 106 can squeeze the protruding rod 203. 03 moves downward, thereby driving the long plate 202 to move downward, and connecting the dust strip 201 under the long plate 202 can seal the gap at the bottom of the door; when the door is opened, the movement direction of the slider 106 is opposite to that when the door is closed, and the return spring 205 set under the long plate 202 applies elastic force to move the long plate 202 upward, so that the dust strip 201 no longer seals the door gap. The purpose of this setting is to effectively prevent the wear of the dust strip 201, and also take into account the efficiency of sound insulation and sealing.

[0068] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0069] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An automatic sound insulation and dust prevention device, characterized by: The telescopic mechanism (1) comprises a first U-shaped fixing block (101) and a second U-shaped fixing block (102), the first U-shaped fixing block (101) and the second U-shaped fixing block (102) are both provided with flanges (103), the flanges (103) are provided with bolt holes (104), the inner side walls of the first U-shaped fixing block (101) and the second U-shaped fixing block (102) are both provided with sliding grooves (105), and a slider (106) is slidably connected in the sliding grooves (105). The slider (106) is provided with a connecting shaft (107), a fixed shaft (108) is provided on one side of the connecting shaft (107), a first traction rod (109) is rotatably connected to the connecting shaft (107), and a second traction rod (1010) is rotatably connected to the fixed shaft (108), the first traction rod (109) and the second traction rod (1010) are interlaced, and the interlaced portion of the first traction rod (109) and the second traction rod (1010) is hinged via a rotating shaft (1011); A lifting assembly (2) is provided on one side of the telescopic mechanism (1), the telescopic mechanism (1) is used to control the lifting of the lifting assembly (2), and a dustproof strip (201) is connected below the lifting assembly (2); The first traction rod (109) and the second traction rod (1010) are both U-shaped, one end of the first traction rod (109) is rotatably connected to the fixed shaft (108) on the first U-shaped fixed block (101), and the other end of the first traction rod (109) is rotatably connected to the connecting shaft (107) on the second U-shaped fixed block (102); The connection method of the second traction rod (1010) is opposite to the connection method of the first traction rod (109); The lifting assembly (2) comprises a long strip (202), a protruding rod (203) is fixedly connected to one side of the upper portion of the long strip (202), a first beveled surface (204) is provided at the upper end of the protruding rod (203), a second beveled surface (1012) is provided below the slider (106), and the first beveled surface (204) and the second beveled surface (1012) are arranged to slide against each other; The dustproof strip (201) is connected below the long plate (202), and return springs (205) are connected below both sides of the long plate (202).

2. A door, implemented based on the automatic sound insulation and dustproof device according to claim 1, characterized in that: The invention comprises a door frame (3) and a door leaf (4), wherein the door frame (3) is embedded in a wall, the door leaf (4) is mounted on the door frame (3) via a hinge (5), and the automatic sound insulation and dustproof device is mounted on the bottom of the door frame (3) and the door leaf (4).

3. A door according to claim 2, characterized in that: A first embedding groove (301) is provided on the bottom side of the door frame (3), and a second embedding groove (302) matching the first embedding groove (301) is provided on the side of the door leaf (4). A first U-shaped fixing block (101) is embedded in the first embedding groove (301), and a second U-shaped fixing block (102) is embedded in the second embedding groove (302). Flanges (103) of the first U-shaped fixing block (101) and the second U-shaped fixing block (102) are clamped in the first embedding groove (301) and the second embedding groove (302), and the first U-shaped fixing block (101) and the second U-shaped fixing block (102) are fixed by bolts.

4. A door according to claim 3, characterized in that: The bottom of the door leaf (4) is provided with an elongated hole (401), and the lifting assembly (2) is installed in the elongated hole (401).

5. A method for preparing a door with an automatic sound insulation and dustproof device, based on a door according to any one of claims 2 to 4, characterized in that: Here’s how: Installing the door leaf (4) on the door frame (3); A long hole (401) is provided at the bottom of the door leaf (4), and the lifting assembly (2) is installed in the long hole (401). The position of the lifting assembly (2) is adjusted so that the long plate (202) of the lifting assembly (2) can move up and down. The return springs (205) are installed on both sides of the long plate (202). When the long plate (202) is pressed down, it can be reset. The bottom side surfaces of the door leaf (4) and the door frame (3) are provided with embedding grooves, and the first U-shaped fixing block (101) and the second U-shaped fixing block (102) are embedded in the embedding grooves, and the first traction rod (109) and the second traction rod (1010) are connected to the first U-shaped fixing block (101) and the second U-shaped fixing block (102) respectively; The first beveled surface (204) of the upper protruding rod (203) of the regulating long plate (202) and the second beveled surface (1012) of the sliding block (106) are abutted against each other; When the door is opened, the slider (106) retracts, and due to the elastic force of the return spring (205), the long plate (202) moves upward; When the door is closed, the slider (106) is pressed, and the second beveled surface (1012) presses against the first beveled surface (204), causing the protruding rod (203) to drive the long strip (202) to move downward; Finally, the dustproof strip (201) is installed below the long strip plate (202).

6. The method for preparing a door with an automatic sound insulation and dustproof device according to claim 5, characterized in that: The dustproof strip (201) is made of a soft rubber material, and is embedded below the long plate (202).

Citation Information

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