Mute door plate structure
By setting expansion grooves and fixing holes on the side of the door, combined with high-elasticity soundproof strips and metal fasteners, the problem of easy aging and deformation of traditional door panel sealing strips is solved, thereby improving the soundproofing effect and extending the service life of the door panel.
Patent Information
- Application Number
- CN202520379760.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Traditional door panel sealing strips are prone to aging and deformation, resulting in decreased sound insulation performance, high maintenance costs, and difficulty in adapting to door installation errors and deformations, leading to serious sealing failure.
The door adopts a silent door panel structure, including expansion grooves and fixing holes on the side of the door. It uses a high-elasticity silent strip, which is fixed by expansion screws. The silent strip expands and contracts elastically when the door is closed to fit tightly, adapting to door deformation and installation errors, and is stably fixed by metal fasteners.
This improves noise reduction, extends the lifespan of the door panel, reduces maintenance costs, and enhances the efficiency and adaptability of the door panel.
Smart Images

Figure CN223824865U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to door body technical field especially is mute door plate structure. BACKGROUND
[0002] As the core component of building space separation, the sound insulation performance of the door directly affects the comfort and privacy of the indoor environment. The traditional door plate relies on the fixed sealing strip (such as rubber, silicone, etc.) between the door leaf and the door frame for sound insulation design, which blocks the noise conduction by compressing the sealing strip to fill the gap. However, this structure has significant defects:
[0003] 1. Sealing failure: The fixed sealing strip is prone to plastic deformation or aging cracking after long-term compression, resulting in poor close fit of the door leaf during closing, increased gap, and significantly reduced sound insulation performance. Especially in environments with large temperature differences or frequent humidity changes, material shrinkage and expansion are intensified, further shortening the service life of the sealing strip.
[0004] 2. Insufficient adaptability: The size of the traditional sealing strip is fixed, making it difficult to adapt to door leaf installation errors (such as door frame inclination, wall settlement) or slight deformation of the door leaf (such as wood door warping due to moisture). Even slight deformation can cause local sealing failure and noise leakage points.
[0005] 3. High maintenance cost: The sealing strip needs to be replaced as a whole after aging, which is complex to operate. INVENTION CONTENTS
[0006] The utility model provides mute door plate structure in view of the prior art's insufficient, thereby realizes good sound insulation effect, promotes the service life of door plate.
[0007] To solve the above technical problems, the utility model solves the problem by the following technical scheme: mute door plate structure, comprising
[0008] Door body and mute strip movably arranged on the side edge of the door body;
[0009] One end of the mute strip is arranged inside the door body, and the other end is arranged higher than the side edge of the door body;
[0010] The mute strip is provided with an expansion part to realize elastic expansion of the mute strip after compression and resist the compression part.
[0011] In the above-mentioned scheme, preferably, the door body is provided with an expansion slot for the mute strip to move.
[0012] In the above-mentioned scheme, preferably, the door body is provided with a fixing hole for fixing the mute strip.
[0013] In the above-mentioned scheme, preferably, the fixing hole and the expansion slot are through, and the expansion slot is inclined to the closing direction of the fixing hole to the door body.
[0014] Preferably, in the above solution, the width of the telescopic groove is less than the diameter of the fixed hole.
[0015] Preferably, in the above solution, the mute strip comprises a fixed part and a movable part, and the fixed part and the movable part are respectively arranged at both ends of the telescopic part.
[0016] Preferably, in the above solution, the fixed part is fixedly arranged in the fixed hole, and the movable part is movably arranged in the telescopic groove.
[0017] Preferably, in the above solution, the fixed part, the movable part and the telescopic part are integrally formed, and a plurality of grooves are arranged on the telescopic part for extrusion compression of the telescopic part.
[0018] Preferably, in the above solution, the fixed part is covered with a fixing member, and the fixing member is fixedly arranged in the fixed hole.
[0019] An opening is arranged on the fixing member and matched with the telescopic part.
[0020] Preferably, in the above solution, the fixing member is made of metal, and a plurality of expansion grooves are arranged at both ends of the fixing member.
[0021] Expansion screws are arranged at both ends of the fixing member and matched with the expansion grooves, and the expansion screws are installed to make the ends of the fixing member expand outward through the expansion grooves and extrude the door body.
[0022] The mute strip is made of flexible material, and the material has elastic reset function.
[0023] The mute door structure has the advantages that: the mute door structure is provided with the telescopic mute strip arranged at the side of the door body, so that the mute strip is closely attached to the door frame, and the mute effect is achieved; meanwhile, the mute strip is fixed and disassembled through the expansion screws at both ends, so that the mute strip is quickly replaced, the service life and maintenance efficiency of the door plate are greatly improved, and the use cost of the door plate is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a front view structural schematic diagram of the utility model.
[0025] Figure 2 It is a front view structural schematic diagram of the utility model. Figure 1 It is a partial enlarged structural schematic diagram of A in the utility model.
[0026] Figure 3 It is a top view of the utility model.
[0027] Figure 4 It is a mute strip and fixing member three-dimensional cooperation structural schematic diagram of the utility model.
[0028] Figure 5The utility model discloses a door body top view structure schematic diagram. DETAILED DESCRIPTION
[0029] The utility model will be described in further detail in connection with the drawings and specific embodiments: refer to Figures 1-5 .
[0030] The mute door plate structure includes door body 1, the side (door plate closed side) of door body 1 is provided with retractable slot 101 and fixed hole 102 along the length direction, retractable slot 101 is through with fixed hole 102, and the slot width of retractable slot 101 is less than the aperture of fixed hole 102, as Figure 5 Indicated.
[0031] Retractable slot 101 and fixed hole 102 are provided with mute strip 2, mute strip 2 is embedded in the inside of door body 1 through fixed hole 102, and its outside extends to the outside of the side of door body 1, and when door body 1 is closed, it elastically abuts against the pressure part of the adjacent door body 1 side or door frame, forming dynamic sealing.
[0032] Mute strip 2 is integrally formed by fixed part 202, retractable part 201 and movable part 203, wherein:
[0033] Fixed part 202: located at the inside end of mute strip 2, the fixed part 202 is covered with a metal fixing part 3, and is locked in fixed hole 102 by expansion screw 303, as Figures 2-3 Indicated.
[0034] Retractable part 201: connecting fixed part 202 and movable part 203, the surface of retractable part 201 is provided with a plurality of transverse grooves 204, the grooves 204 are distributed along the length direction of the mute strip, forming an elastic deformation zone, as Figure 3 And Figure 4 Indicated.
[0035] Movable part 203: extending to the outside of the side of door body 1, the cross section of movable part 203 is arc-shaped or wedge-shaped, used for contacting and being pressed to retract when the door is closed.
[0036] The retractable slot 101 is a long strip-shaped groove, the slot width of the retractable slot 101 is less than the aperture of the fixed hole 102 (for example, the slot width is 5mm, and the aperture is 8mm), and the retractable slot 101 is inclined to the closing direction of the door body 1 by 10°-30°, as Figure 5 Indicated. This design makes the movable part 203 retract along the inclined direction when being extruded during the closing process of the door, and the elastic deformation of the grooves 204 of the retractable part 201 provides continuous compression force;
[0037] The fixed hole 102 is through with the retractable slot 101, and after the fixed part 3 passes through the fixed hole 102, the opening 301 of the fixed part 3 is aligned with the retractable slot 101, providing a movable space for the retractable part 201, as Figure 3 Indicated.
[0038] The fixing member 3 is a metal sleeve, and it is a thin-walled metal sleeve with a certain elastic deformation capacity. A plurality of expansion grooves 302 are formed on the wall body at both ends of the metal sleeve, and a screw thread matched with the expansion screw 303 is arranged inside. During installation, the fixing member 3 is inserted into the fixing hole 102, and after the expansion screw 303 is tightened, the end portion thereof is expanded outwardly due to the gap of the expansion groove 302, and an interference fit is formed with the inner wall of the door body 1, so that the mute strip 2 is firmly fixed;
[0039] The metal material of the fixing member 3 provides high-strength support, avoiding loosening caused by vibration due to traditional gluing or buckle type fixing. At the same time, the pre-tightening force of the expansion screw 303 can be adjusted to adapt to different door body thickness requirements.
[0040] The mute strip 2 material can adopt high-elasticity TPU (thermoplastic polyurethane) or silicone rubber material, which has wear resistance, aging resistance and elastic reset function, and the working temperature range covers-30℃ to 80℃, which is suitable for complex environment.
[0041] The movable part 203 surface can be additionally provided with micro convex texture or coating to increase the friction coefficient with the door frame, and further improve the sound insulation effect. The inner wall of the telescopic groove 101 can be coated with a lubricating layer to reduce the moving resistance of the movable part 203.
[0042] The method for using the mute door plate structure as described above is as follows:
[0043] Door body 1 closing stage: when the door body 1 rotates to the door frame direction and closes, the movable part 203 first contacts and is pressed by the door frame. Under the action of pressure, the movable part 203 is retracted to the inside of the door body 1 along the inclined telescopic groove 101, the recess 204 of the telescopic part 201 is compressed, and a reverse elastic force is generated, so that the movable part 203 always adheres to the surface of the door frame, eliminating the gap caused by door body deformation or installation error;
[0044] Door body 1 opening stage:
[0045] When the door body 1 is opened, the external pressure is removed, the telescopic part 201 restores the initial position by relying on its own elastic reset, and the plastic deformation caused by long-term pressure is avoided.
[0046] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents. The modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A soundproof door panel structure, characterized by: The utility model relates to a door body (1) and the mute strip (2) of activity setting in the side of door body (1). One end of the mute strip (2) is arranged in the door body (1), and the other end is arranged higher than the side of the door body (1). The mute strip (2) is provided with an elastic part (201) to realize elastic extension after being pressed and resist the pressing part. The door body (1) is provided with an elastic groove (101) for the activity of the mute strip (2).
2. The quiet door panel structure of claim 1, wherein: The door body (1) is provided with a fixing hole (102) for fixing the mute strip (2).
3. The quiet door panel structure of claim 2, wherein: The fixing hole (102) is through the elastic groove (101), and the elastic groove (101) is arranged obliquely relative to the closing direction of the fixing hole (102) to the door body (1).
4. The quiet door panel structure of claim 3, wherein: The groove width of the elastic groove (101) is smaller than the hole diameter of the fixing hole (102).
5. The quiet door panel structure of claim 3, wherein: The mute strip (2) comprises a fixed part (202) and a movable part (203), and the fixed part (202) and the movable part (203) are arranged at both ends of the elastic part (201) respectively.
6. The quiet door panel structure of claim 3, wherein: The fixed part (202) is fixedly arranged in the fixing hole (102), and the movable part (203) is movably arranged in the elastic groove (101).
7. The quiet door panel structure of claim 6, wherein: The fixed part (202), the movable part (203) and the elastic part (201) are integrally formed, and the elastic part (201) is provided with a plurality of grooves (204) for realizing extrusion compression.
8. The quiet door panel structure of claim 6, wherein: The fixed part (202) is covered with a fixing member (3), and the fixing member (3) is fixedly arranged in the fixing hole (102).
9. The soundproof door panel structure according to claim 6, wherein: The fixing member (3) is provided with an opening (301) matched with the elastic part (201). The fixing member (3) is made of metal, and a plurality of expansion grooves (302) are arranged at both ends of the fixing member (3).
10. The quiet door panel structure of claim 9, wherein: The fixing member (3) is provided with expansion screws (303) matched with the expansion grooves (302), and the expansion screws (303) are installed to make the end part of the fixing member (3) expand outward through the expansion grooves (302) and extrude and fix the door body (1). The mute strip (2) is made of flexible material, and the material has elastic reset function.