A sealing structure for sound insulation and noise reduction of wooden doors

The combination of gear rack and magnetic sealing strip solves the problem of noise leakage caused by poor sealing of wooden doors, achieves multi-layer sealing and sound insulation, simplifies the cleaning process, adapts to door gaps of different heights, and supports the replacement of rubber sleeves.

CN224282451UActive Publication Date: 2026-05-26ZHEJIANG BUJIN IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG BUJIN IND & TRADE CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing wooden doors often suffer from sound leakage due to excessively large gaps or poor sealing, which affects sound insulation. Current technology has not been able to effectively solve this problem.

Method used

The system combines a rack and pinion structure with a magnetic sealing strip. The rack and pinion drive the moving plate and rubber sleeve to adjust the gap at the bottom of the door. The metal sheet and magnetic sealing strip enhance the sealing effect, and the internal gaps are filled with rubber strips and sound insulation cotton to achieve multi-layer sealing.

Benefits of technology

Effectively blocks sound from entering the room, enhancing the sound insulation performance of wooden doors. It is simple, beautiful, and easy to clean. The rubber sleeve is replaceable and adapts to door gaps of different heights, providing extra tightness and sound insulation performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224282451U_ABST
Patent Text Reader

Abstract

This utility model discloses a sealing structure for sound insulation and noise reduction of wooden doors, including a wooden board connected to a through groove inside the wooden door. A gear is mounted on the board, with a rack meshing with one side of the gear. One end of the rack is connected to a limiting rod, and the other end is connected to a movable plate. A rubber sleeve is mounted on the movable plate. A rotating rod is rotatably connected to the center of the gear, and a knob is connected to the end of the rotating rod passing through the wooden door. A locking block is connected to the bottom of the movable plate, and a locking groove is formed on the top of the rubber sleeve, into which the locking block engages. This utility model provides a sealing structure for the gap between the bottom of the door and the ground. By rotating the knob on the back of the wooden door, the rubber sleeve can be adjusted to a suitable height according to the gap at the bottom of the door, filling the gap between the bottom of the door and the ground and preventing sound from entering the room. When sound insulation is not needed, the rubber sleeve can be hidden by rotating the knob.
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Description

Technical Field

[0001] This utility model relates to the field of wooden door sealing structures, specifically to a sealing structure for sound insulation and noise reduction of wooden doors. Background Technology

[0002] Wooden doors, as a traditional type of door, are widely popular for their natural beauty, warmth, and comfort. They not only add a unique style and charm to the home environment but also have good heat insulation and a certain degree of sound insulation.

[0003] However, existing wooden doors, when in use, can cause sound leakage if the gaps are too large or the seal is poor. They cannot effectively block noise generated in daily life, thus affecting the user's rest and the sound insulation effect.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a sealing structure for sound insulation and noise reduction of wooden doors to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A soundproof and noise-reducing sealing structure for wooden doors includes a wooden board connected to a through groove inside the wooden door. A gear is provided on the wooden board, and a rack is meshed with one side of the gear. A limit rod is connected to one end of the rack, and a movable plate is connected to the other end of the rack. A rubber sleeve is provided on the movable plate. A rotating rod is rotatably connected to the center of the gear, and a knob is connected to the end of the rotating rod that passes through the end of the wooden door.

[0008] Furthermore, to facilitate the replacement of the rubber sleeve, a locking block is connected to the bottom of the movable plate, and a locking groove is opened on the top of the rubber sleeve, into which the locking block engages.

[0009] Furthermore, to prevent excessive door gaps from compromising sound insulation, a rubber strip is fixedly connected to the inside of the door frame. A metal sheet is fixedly installed on one side of the rubber strip. The inner wall of the wooden door is hinged to the door frame via a concealed hinge. Metal sheets are provided on the vertical inner wall and the top inner wall of the door frame.

[0010] Furthermore, in order to seal the gap between the door frame and the wooden door, magnetic sealing strips that match the positions of the metal plates on the door frame are connected to the vertical side walls and the top outer wall of the wooden door.

[0011] Furthermore, in order to accommodate door gaps at different heights from the ground, a limiting groove is provided at the connection between the wooden door and the knob, and a limiting block is connected to the knob, with the limiting block engaging in the limiting groove.

[0012] Furthermore, to reduce noise inside the sealing mechanism, sound-insulating cotton is filled between the sound-insulating groove and the through groove.

[0013] Furthermore, to ensure a tighter seal between the wooden door and the door frame and to enhance the sound insulation and noise reduction function of the wooden door, a rubber strip is connected to the edge of the contact surface between the door frame and the wooden door, and a rubber strip is connected to the edge of the outer wall of the wooden door.

[0014] The beneficial effects of this utility model are as follows:

[0015] By installing a metal sheet on the inside of the door frame and attaching a magnetic sealing strip to the outside of the wooden door, the magnetic sealing strip will be tightly attached to the door frame due to magnetic force when the wooden door is closed, providing additional tightness and sound insulation performance.

[0016] Rubber strip one is installed on one side of the metal sheet, and rubber strip two is installed on the outside of the wooden door, providing a second layer of airtightness for the wooden door and the door frame, and increasing the sound insulation performance of the wooden door;

[0017] To address the gap between the bottom of the door and the ground, adjust the rubber sleeve to the appropriate height according to the gap by rotating the knob on the back of the wooden door. This will fill the gap between the bottom of the door and the ground and prevent sound from entering the room. When soundproofing is not needed, simply rotate the knob to hide the rubber sleeve.

[0018] The use of concealed hinges reduces the gap between the wooden door and the door frame, making it look simple and streamlined while also making daily cleaning easier. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of a sealing structure for sound insulation and noise reduction of a wooden door according to an embodiment of the present utility model;

[0021] Figure 2 This is a cross-sectional view of the bottom sealing structure in a sealing structure for sound insulation and noise reduction of a wooden door according to an embodiment of the present utility model;

[0022] Figure 3 This is an enlarged view of the sealing structure of the rubber block and the movable plate for sound insulation and noise reduction of a wooden door according to an embodiment of the present utility model;

[0023] Figure 4 This is a side view of a sealing structure for sound insulation and noise reduction of a wooden door according to an embodiment of the present utility model;

[0024] Figure 5 This is a rear view of a sealing structure for sound insulation and noise reduction of a wooden door according to an embodiment of the present utility model;

[0025] Figure 6 This is a detailed diagram of a knob structure for sound insulation and noise reduction of a wooden door according to an embodiment of the present utility model.

[0026] In the picture:

[0027] 1. Door frame; 2. Rubber strip one; 3. Wooden door; 4. Through groove; 5. Concealed hinge; 6. Wooden board; 7. Rack; 8. Gear; 9. Rotating rod; 10. Limiting rod; 11. Moving plate; 12. Rubber sleeve; 13. Rubber strip two; 14. Magnetic sealing strip; 15. Knob; 16. Metal sheet; 17. Locking block; 18. Locking groove; 19. Limiting block; 20. Limiting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] According to an embodiment of this utility model, a sealing structure for sound insulation and noise reduction of wooden doors is provided.

[0030] Example 1;

[0031] like Figures 1-6As shown, a sealing structure for sound insulation and noise reduction of a wooden door according to an embodiment of this utility model includes a wooden board 6. The wooden board 6 is connected to a through groove 4 opened inside the wooden door 3. The through groove 4 is opened from the lower middle part of the wooden door 3 and extends to the bottom of the wooden door 3. The gap between the wooden board 6 and the through groove 4 is filled with sound insulation cotton to fill the internal gap and reduce noise. A gear 8 is provided on the wooden board 6. A rack 7 is meshed with one side of the gear 8. The meshing of the gear 8 and the rack 7 causes the moving plate 11 and the rubber sleeve 12 to fill the gap between the bottom of the door and the ground. One end of the rack 7 is connected to a limit rod 10 for limiting movement. The rod 10 prevents the gear 8 from rotating and falling off the rack 7. The other end of the rack 7 is connected to a movable plate 11, which is equipped with a rubber sleeve 12. The gear 8 is rotatably connected to a rotating rod 9. The end of the rotating rod 9 that passes through the wooden door 3 is connected to a knob 15. A limit groove 20 is provided on the wooden door 3 where it connects to the knob 15. A limit block 19 is connected to the knob 15. The limit block 19 is located on the knob 15 outside the limit groove 20 and is very close to it. Pulling the knob 15 will not affect the meshing position of the gear 8 and the rack 7 inside it. The limit block 19 is engaged in the limit groove 20. The bottom of the movable plate 11 is connected to a locking block 17, and the top of the rubber sleeve 12 has a locking groove 18. The locking block 17 is engaged in the locking groove 18. By rotating the knob 15 on the back of the wooden door 3, the rubber sleeve 12 can be adjusted to a suitable height according to the gap at the bottom of the door. After adjusting to the appropriate position, the limiting block 19 of the knob 15 is gently pushed inward into the door so that the limiting block is locked in the position of the limiting groove 20, thus fixing its position and filling the gap between the bottom of the door and the ground to prevent sound from entering the room. When sound insulation is not required, the limiting block 19 is moved out of the limiting groove 20 by gently pulling the knob 15, and then the knob 15 is rotated to hide the rubber sleeve 12. When installing the rubber sleeve 12 and the movable plate 11, simply align the locking groove 18 of the rubber sleeve 12 with the locking block 17 at the bottom of the movable plate 11 and move it. When the rubber sleeve 12 is worn or aged, it can be removed and replaced with a new rubber sleeve 12 at any time without the need to remake it.

[0032] Example 2;

[0033] like Figure 1 , Figure 4 and Figure 5As shown, a sealing structure for sound insulation and noise reduction of a wooden door according to an embodiment of this utility model includes a wooden door 3 whose inner wall is hinged to a door frame 1 via a concealed hinge 5. The concealed hinge 5 reduces the gap between the wooden door 3 and the door frame 1, resulting in a clean and streamlined appearance while facilitating daily cleaning. Metal plates 16 are provided on the vertical inner side wall and top inner wall of the door frame 1, and magnetic sealing strips 14, matching the positions of the metal plates 16 on the door frame 1, are connected to the vertical side wall and top outer wall of the wooden door 3. By installing the metal plates 16 on the inner side of the door frame 1 and attaching the magnetic sealing strips 14 to the outer side of the wooden door 3, when the wooden door 3 is closed, the magnetic sealing strips 14 are tightly adhered to the door frame 1 due to magnetic force, providing additional tightness and sound insulation performance. The magnetic sealing strips 14 are connected via a magic... The adhesive is installed and can be replaced at any time when the magnetism weakens or disappears. A rubber strip 13 is connected to the outer edge of the wooden door 3, and a rubber strip 2 is connected to the edge of the contact surface between the door frame 1 and the wooden door 3. A rubber strip 2 is set on the outside of the metal sheet 16. The rubber strip 13 on the outside of the wooden door 3 provides a second layer of airtightness between the wooden door 3 and the door frame 1, increasing the sound insulation performance of the wooden door 3. In addition, a door lock and a folding hook, which are common in the prior art, are set on the back of the wooden door 3. The folding hook has an arc-shaped groove, and a hanging rod is embedded in the groove. When there is a need for hanging, the folding hook can be pulled out directly from the hook groove. When hanging multiple items, the hanging rod can be inserted into the hook groove. When there is no need for hanging, the hook can be pushed into the hook groove. There is no need to install additional hooks.

[0034] In summary, with the help of the above-mentioned technical solution of this utility model, when the wooden door 3 is closed, the magnetic sealing strip 14 on the outside of the wooden door 3 will be tightly attracted to the metal sheet 16 on the inside of the door frame 1 by magnetic force. At this time, the rubber strip 12 on one side of the metal sheet 16 and the rubber strip 23 on the outer edge of the wooden door 3 are fixed to the outside of the area of ​​the magnetic sealing strip 14 to form a second layer of seal. Then, the user rotates the knob 15 on the back of the wooden door 3 to make the gear 8 inside the wooden board 6 rotate, which drives the rack 7 to move to the bottom of the door. When it is rotated to the height required to fill the gap with the ground, the user gently pushes the knob 15 to make the limiting block 19 on it lock into the wooden door 3. The position can be fixed in the limiting groove 20. When the rack 7 moves, the moving plate 11 and the rubber sleeve 12 move within the wooden board 6. When the gear 8 touches the limiting rod 10, it stops rotating. At this time, the moving plate 11 and the rubber sleeve 12 will fill the gap between the bottom of the door and the ground, preventing sound from entering the room from this position. The user can adjust it to a position that is both soundproof and avoids friction damage to the rubber sleeve 12 with the ground. The rubber sleeve 12 is snapped onto the moving plate 11. When the rubber sleeve 12 is worn out, it is easy to disassemble and replace. When the user does not want to use it, the moving plate 11 and the rubber sleeve 12 can be retracted by turning the knob 15 in the opposite direction.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sealing structure for sound insulation and noise reduction of wooden doors, characterized in that, Includes a wooden board (6), which is connected to a through groove (4) inside the wooden door (3). The wooden board (6) is equipped with a gear (8), and a rack (7) is meshed on one side of the gear (8). One end of the rack (7) is connected to a limit rod (10), and the other end of the rack (7) is connected to a movable plate (11). A rubber sleeve (12) is provided on the movable plate (11). A rotating rod (9) is rotatably connected to the center of the gear (8), and a knob (15) is connected to the end of the rotating rod (9) that passes through the wooden door (3).

2. The sealing structure for sound insulation and noise reduction of wooden doors according to claim 1, characterized in that, The bottom of the movable plate (11) is connected to a locking block (17), and the top of the rubber sleeve (12) is provided with a locking groove (18), in which the locking block (17) is engaged.

3. The sealing structure for sound insulation and noise reduction of wooden doors according to claim 1, characterized in that, The inner wall of the wooden door (3) is hinged to the door frame (1) by a hidden hinge (5), and metal plates (16) are provided on the vertical inner wall and the top inner wall of the door frame (1).

4. The sealing structure for sound insulation and noise reduction of wooden doors according to claim 1, characterized in that, The wooden door (3) has a magnetic sealing strip (14) that matches the position of the metal plate (16) on the door frame (1) at the vertical side wall and top outer wall.

5. The sealing structure for sound insulation and noise reduction of wooden doors according to claim 1, characterized in that, A limiting groove (20) is provided at the connection between the wooden door (3) and the knob (15). A limiting block (19) is connected to the knob (15), and the limiting block (19) is engaged in the limiting groove (20).

6. The sealing structure for sound insulation and noise reduction of wooden doors according to claim 1, characterized in that, The gap between the wooden board (6) and the through groove (4) is filled with sound insulation cotton.

7. The sealing structure for sound insulation and noise reduction of wooden doors according to claim 1, characterized in that, Rubber strip 2 (13) is connected to the outer edge of the wooden door (3), and rubber strip 1 (2) is connected to the edge of the contact surface between the door frame (1) and the wooden door (3).