Automobile door panel with good mute effect

By combining a fixing mechanism with multiple layers of sound insulation materials, the problem of low installation efficiency of sound insulation cotton in existing technologies is solved, enabling rapid installation and disassembly, improving the noise reduction effect and air purification capability, and enhancing maintenance convenience.

CN223735820UActive Publication Date: 2025-12-30FOSHAN SHUNDE EAST ASIA AUTO PARTS CO LTD
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Patent Information

Application Number
CN202520079390.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-12-30
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

The current installation process for automotive door panel sound insulation cotton requires the use of screwdrivers and other tools to operate multiple sets of screws, resulting in low installation efficiency, inability to achieve quick installation and disassembly, and inconvenience to workers.

Method used

The device employs a fixing mechanism, including components such as L-plates, insert plates, slide rods, movable rods, and insert blocks. Through the interlocking and spring coordination, it achieves rapid fixing and limiting of the sound insulation cotton. Combined with multiple layers of sound insulation materials such as sound insulation cotton, glass wool, and activated carbon cotton, it forms a multi-layer sound insulation structure, and the limiting components enable rapid installation and disassembly.

Benefits of technology

It improves the installation efficiency of sound insulation structures, significantly enhances the quietness inside the vehicle, purifies the air with activated carbon cotton, improves ride comfort, and facilitates maintenance and repair.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses an automobile door panel with a good mute effect, which comprises an automobile door panel body, and lifting glass is arranged in the top end of the automobile door panel body; a fixing mechanism is arranged in the automobile door panel body, and a limiting assembly is arranged in the fixing mechanism. Wherein the fixing mechanism comprises L-shaped plates, the L-shaped plates are installed on one side of the automobile door panel body, fixing frames are installed on one sides of the L-shaped plates, inserting plates are connected to the inner sides of the fixing frames in an inserted mode, and installing grooves are formed in the inserting plates, so that the adjusted plastic strips can be used for extruding and limiting the sound insulation cotton, and the sound insulation cotton is prevented from being damaged. Compared with the mode that multiple sets of screws are operated through a screwdriver for installation in the prior art, more convenience is achieved, the installation efficiency of the sound insulation structure is greatly improved, the sound insulation cotton, the glass cotton and the activated carbon cotton have excellent sound insulation performance, and therefore the multi-layer sound insulation structure can be formed; and the mute effect in the vehicle is obviously improved.
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Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing materials technology, specifically to a car door panel with good sound insulation effect. Background Technology

[0002] Car soundproofing involves meticulously addressing noise generated by the car engine, vibrations and resonances between the tires and the ground, and friction noises caused by gaps or aging of interior components, based on the vehicle's performance and road conditions. This aims to improve the comfort of the car ride. When choosing a car, people not only focus on performance but also on the quality of its accessories. Soundproofing cotton for car doors needs to be cut to different sizes according to the shape of the door panel to facilitate its installation.

[0003] Publication No. CN215042585U discloses a sound insulation cotton for car door panels with good sound insulation effect. This device involves placing the sound insulation structure inside the door panel body, aligning the mounting posts on the back of the positioning plate with the mounting holes inside the card, inserting a large screw into the mounting holes until it extends into a locking groove inside the door panel body for fixation, and then screwing a small screw into the locking groove. However, this patent still has the following problems in actual use:

[0004] This device involves placing the sound insulation structure inside the door panel, aligning the mounting posts on the back of the positioning plate with the mounting holes inside the card, inserting large screws into the mounting holes until they reach the locking groove inside the door panel for fixation, and then screwing small screws into the locking groove. However, when installing sound insulation cotton, the device requires workers to use screwdrivers and other tools to operate on multiple sets of screws, which greatly reduces the efficiency of sound insulation cotton installation and fails to achieve the effect of quick installation and removal of sound insulation cotton, causing inconvenience to workers during use.

[0005] A car door panel with good noise reduction effect is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a car door panel with good sound insulation performance, in order to solve the problems mentioned in the background art. The current method involves placing the sound insulation structure inside the door panel body, then aligning the mounting posts on the back of the positioning plate with the mounting holes inside the card for installation, then inserting large screws into the mounting holes until they extend into the locking groove inside the door panel body for fixation, and finally screwing small screws into the locking groove. However, when installing sound insulation cotton, the operator needs to use tools such as screwdrivers to operate multiple sets of screws, which greatly reduces the installation efficiency of sound insulation cotton and cannot achieve the effect of quick installation and removal of sound insulation cotton, causing inconvenience to the operator.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a car door panel with good noise reduction effect, including a car door panel body, wherein a liftable glass is provided inside the top of the car door panel body; a fixing mechanism is provided inside the car door panel body, and a limit component is provided inside the fixing mechanism.

[0008] The fixing mechanism includes an L-plate, which is installed on one side of the car door panel body. A fixing frame is installed on one side of each L-plate, and an insert plate is inserted into the inner side of the fixing frame. The insert plate has an installation groove inside, and a fixing box is installed inside one side of the insert plate. A sliding rod is slidably connected between the fixing box and the installation groove. A sliding plate is installed at one end of the sliding rod, and a first telescopic spring is installed between the sliding plate and the inner side of the fixing box. Moving blocks are symmetrically slidably connected to both sides of the insert plate, and movable rods are symmetrically rotatably connected to both sides of the sliding rod. One end of the movable rod is rotatably connected to the moving block, and an insert block is installed on one side of each moving block. The insert block is inserted into the inner side of the fixing frame, and a connecting plate is installed at one end of the insert plate. A plastic strip is rotatably connected between the connecting plates, and sound insulation cotton is installed inside the car door panel body.

[0009] Preferably, a first connecting layer is adhered to one side of the sound insulation cotton, and glass wool is disposed inside the first connecting layer. A second connecting layer is adhered to the side of the sound insulation cotton away from the first connecting layer, and activated carbon cotton is disposed inside the second connecting layer. Fiber sleeves are fitted over the outer sides of the sound insulation cotton, glass wool, and activated carbon cotton.

[0010] Preferably, the limiting assembly includes a limiting box installed inside one end of the L-plate, and a screw is rotatably connected inside the limiting box. A movable frame is threadedly connected to the outside of the screw. A multi-stage telescopic rod is installed between the top of the movable frame and the limiting box. A second telescopic spring is sleeved on the outside of the multi-stage telescopic rod. A limiting plate is slidably connected inside one side of the limiting box. A connecting rod is rotatably connected to one side of the movable frame. One end of the connecting rod is rotatably connected to the limiting plate. A positioning plate is installed at the bottom of the fixed frame. A groove is opened on the inner side of the top of the L-plate. The positioning plate is inserted into the groove. One end of the limiting plate is inserted into the positioning plate.

[0011] Preferably, the insert plate has symmetrically provided limiting grooves on both sides, and the moving block is slidably connected inside the limiting groove.

[0012] Preferably, a rotating block is installed at the top end of the screw.

[0013] Preferably, the slide plate is slidably connected inside the fixed box.

[0014] Preferably, the first telescopic spring is sleeved on the outside of the slide rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: A car door panel with good sound insulation is described below: Multiple sets of insert plates are inserted into the inner side of the fixed frame by the operator. The operator then pulls a sliding plate, causing a sliding rod to slide inside the fixed box. The movement of the sliding rod causes two sets of movable rods to move. At this time, the first telescopic spring extends and quickly returns to its original position, causing the sliding rod to move the movable rod. The movement of the movable rod pushes the moving block to move, which in turn causes multiple sets of insert plates to move. These insert plates are then inserted into the inner side of the fixed frame, achieving a quick fixation of the limiting insert plates. This allows the adjusted plastic strip to compress and limit the sound insulation cotton, thus achieving a quick fixation of the limiting sound insulation cotton. This is significantly different from the prior art which uses a screwdriver to operate multiple sets of screws. The nail installation method is more convenient and greatly improves the installation efficiency of the sound insulation structure. The sound insulation cotton, glass wool and activated carbon cotton have excellent sound insulation performance, which can form a multi-layer sound insulation structure, effectively blocking external noise and reducing the resonance noise of the door components, thereby significantly improving the quietness of the car interior. The staff inserts the positioning plate into the groove, and then the staff rotates the rotating block to drive the screw to rotate inside the limit box. At this time, the moving frame drives the connecting rod to move. The rotation and movement of the connecting rod pushes the limit plate to slide inside the limit box. At this time, one end of the limit plate is inserted into the positioning plate. Then, the multi-stage telescopic rod and the second telescopic spring extend and reset, thereby achieving the effect of quick installation and disassembly of the fixing frame. This makes it easier for the staff to disassemble and repair the fixing mechanism, greatly improving the daily maintenance efficiency of the device.

[0016] 1. The soundproofing structure is placed inside the car door panel by the staff. At this point, the staff selects plastic strips of appropriate length according to the specifications of the soundproofing structure. Then, the staff inserts multiple sets of inserts into the inner side of the fixing frame. The staff then pulls a sliding plate, causing a sliding rod to slide inside the fixing box. The movement of the sliding rod drives two sets of movable rods. The rotation of the movable rods pulls a moving block to slide inside the insert. At this point, the first telescopic spring extends. By releasing the sliding plate, the first telescopic spring quickly returns to its original position, causing the sliding rod to drive the movable rod to move. The movement of the movable rod pushes the moving block to move, and the movement of the moving block drives the multiple sets of inserts to move. The multiple sets of inserts then engage with the inner side of the fixing frame, thus achieving the effect of quickly fixing and limiting the inserts. At this time, the two ends of the plastic strip rotate with the connecting plate, so that the sound insulation cotton can be squeezed and limited by the adjusted plastic strip, thereby achieving the effect of quickly fixing and limiting the sound insulation cotton. Compared with the existing technology of using a screwdriver to install multiple sets of screws, it is more convenient and greatly improves the installation efficiency of the sound insulation structure. It brings convenience to the staff when using it. The sound insulation cotton, glass wool and activated carbon cotton have excellent sound insulation performance, which can form a multi-layer sound insulation structure, effectively blocking external noise and reducing the resonance noise of the door parts, thereby significantly improving the quietness of the car. In addition, activated carbon cotton has a strong adsorption capacity, which can adsorb and remove harmful gases such as formaldehyde and benzene in the air inside the car, thereby purifying the air inside the car and improving the comfort of riding.

[0017] 2. The worker places the fixing frame on one side of the L-plate, at which point the positioning plate is inserted into the groove. The worker then rotates the rotating block, causing the screw to rotate inside the limit box. The rotation of the screw causes the moving frame to move, which in turn causes the connecting rod to move. The rotation of the connecting rod pushes the limit plate to slide inside the limit box, at which point one end of the limit plate is inserted into the positioning plate. At this point, the multi-stage telescopic rod and the second telescopic spring extend and reset, thus achieving the effect of quick installation and disassembly of the fixing frame. This facilitates subsequent disassembly and maintenance of the fixing mechanism, greatly improving the efficiency of daily maintenance of the device and bringing convenience to the workers during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partially enlarged structural diagram of the fixing mechanism in this utility model;

[0020] Figure 3 This is a partial enlarged structural diagram of the fixing mechanism in operation of this utility model;

[0021] Figure 4 This is a partially enlarged cross-sectional view of the sound insulation cotton in this utility model;

[0022] Figure 5 This is a schematic side view of the overall structure of the L-plate in this utility model;

[0023] Figure 6 This is a partially enlarged structural diagram of the limiting component in this utility model.

[0024] In the diagram: 1. Car door panel body; 101. Window regulator; 2. Fixing mechanism; 201. L-plate; 202. Fixing frame; 203. Insert plate; 204. Mounting slot; 205. Fixing box; 206. Slide rod; 207. Slide plate; 208. First telescopic spring; 209. Moving block; 210. Movable rod; 211. Insert block; 212. Connecting plate; 213. Plastic strip; 214. Sound insulation cotton; 21 5. First connecting layer; 216. Glass wool; 217. Second connecting layer; 218. Activated carbon wool; 219. Fiber sleeve; 220. Limiting groove; 3. Limiting assembly; 301. Limiting box; 302. Screw; 303. Moving frame; 304. Multi-stage telescopic rod; 305. Second telescopic spring; 306. Limiting plate; 307. Connecting rod; 308. Positioning plate; 309. Groove; 310. Rotating block. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6 The present invention provides a technical solution: a car door panel with good noise reduction effect, including a car door panel body 1, a liftable glass 101 is provided inside the top of the car door panel body 1; a fixing mechanism 2 is provided inside the car door panel body 1, and a limit component 3 is provided inside the fixing mechanism 2.

[0027] The fixing mechanism 2 includes an L-plate 201, which is installed on one side of the car door panel body 1. A fixing frame 202 is installed on one side of each L-plate 201. An insert plate 203 is inserted into the inner side of the fixing frame 202, and an installation groove 204 is formed inside the insert plate 203. A fixing box 205 is installed inside one side of the insert plate 203. A slide rod 206 is slidably connected between the fixing box 205 and the installation groove 204. A sliding plate 207 is installed at one end of the slide rod 206, and the sliding plate 207 is slidably connected inside the fixing box 205. A first telescopic spring 208 is installed between the sliding plate 207 and the inner side of the fixing box 205, and the first telescopic spring 208 is sleeved on the outer side of the slide rod 206. Moving blocks 209 are symmetrically slidably connected inside both sides of the insert plate 203, and movable rods are symmetrically rotatably connected to both sides of the slide rod 206. 210, and one end of the movable rod 210 is rotatably connected to the movable block 209, and one side of the movable block 209 is equipped with an insert block 211, and the insert block 211 is inserted into the inner side of the fixed frame 202, and one end of the insert plate 203 is equipped with a connecting plate 212, and a plastic strip 213 is rotatably connected between the connecting plates 212, and the interior of the car door panel body 1 is provided with sound insulation cotton 214, so as to achieve the effect of quickly fixing the limiting insert plate 203. At this time, the two ends of the plastic strip 213 rotate with the connecting plate 212, so as to use the adjusted plastic strip 213 to squeeze and limit the sound insulation cotton 214, thereby achieving the effect of quickly fixing the limiting sound insulation cotton 214. Compared with the existing technology of using a screwdriver to operate multiple sets of screws for installation, it is more convenient, greatly improves the installation efficiency of the sound insulation structure, and brings convenience to the staff when using it;

[0028] A first connecting layer 215 is adhered to one side of the sound insulation cotton 214, and glass wool 216 is disposed inside the first connecting layer 215. A second connecting layer 217 is adhered to the side of the sound insulation cotton 214 away from the first connecting layer 215, and activated carbon cotton 218 is disposed inside the second connecting layer 217. A fiber sleeve 219 is fitted over the outer sides of the sound insulation cotton 214, glass wool 216, and activated carbon cotton 218. The sound insulation cotton 214, glass wool 216, and activated carbon cotton 218 possess excellent sound insulation performance, thus forming a multi-layered sound insulation system. The layered sound insulation structure effectively isolates external noise and reduces resonance noise from door components, thereby significantly improving the quietness of the car interior. Furthermore, the activated carbon cotton 218 has a strong adsorption capacity, which can adsorb and remove harmful gases such as formaldehyde and benzene from the air inside the car, thereby purifying the air inside the car and improving ride comfort. The two sides of the insert plate 203 are symmetrically provided with limiting grooves 220, and the moving block 209 is located inside the limiting grooves 220 and slidably connected. Through the design of the limiting grooves 220, the moving block 209 can move more stably.

[0029] The limiting assembly 3 includes a limiting box 301 installed inside one end of the L-plate 201. A screw 302 is rotatably connected inside the limiting box 301, and a movable frame 303 is threadedly connected to the outer side of the screw 302. A multi-stage telescopic rod 304 is installed between the top of the movable frame 303 and the limiting box 301, and a second telescopic spring 305 is sleeved on the outer side of the multi-stage telescopic rod 304. A limiting plate 306 is slidably connected inside one side of the limiting box 301, and a connecting rod 307 is rotatably connected to one side of the movable frame 303. One end of the connecting rod 307 is connected to... The limiting plates 306 are rotatably connected, and the bottom end of the fixed frame 202 is equipped with a positioning plate 308. The top inner side of the L plate 201 is provided with a groove 309, and the positioning plate 308 is inserted into the groove 309. One end of the limiting plate 306 is inserted into the positioning plate 308. The top end of the screw 302 is equipped with a rotating block 310, which enables the quick installation and disassembly of the fixed frame 202. This facilitates the subsequent disassembly and maintenance of the fixing mechanism 2 by the staff, greatly improves the daily maintenance efficiency of the device, and brings convenience to the staff during use.

[0030] Working principle: Before using this type of car door panel with good noise reduction, it is necessary to check the overall condition of the device to ensure it can work properly. Figure 1 - Figure 6As shown, the sound insulation structure is placed inside the car door panel 1 by the staff. The staff then selects a plastic strip 213 of appropriate length according to the specifications of the sound insulation structure. Multiple sets of insert plates 203 are then inserted into the inner side of the fixing frame 202. The staff pulls the sliding plate 207, causing the sliding rod 206 to slide inside the fixing box 205. The movement of the sliding rod 206 causes the two sets of movable rods 210 to move. The rotation of the movable rods 210 pulls the moving block 209 to slide inside the insert plate 203. At this time, the first telescopic spring 208 extends. By releasing the sliding plate 207, the first telescopic spring 208 quickly returns to its original position, causing the sliding rod 206 to move the movable rod 210. The movement of the movable rod 210 pushes the moving block 209 to move, and the movement of the moving block 209 causes the multiple sets of insert blocks 211 to move. The multiple sets of insert blocks 211 are then inserted into the inner side of the fixing frame 202, thus achieving rapid fixing of the limiting insert plate 2. The effect of 03 is that at this time, the two ends of the plastic strip 213 rotate between the connecting plate 212, so that the sound insulation cotton 214 can be squeezed and limited by the adjusted plastic strip 213, thereby achieving the effect of quickly fixing and limiting the sound insulation cotton 214. Compared with the existing technology, which requires a screwdriver to install multiple sets of screws, it is more convenient and greatly improves the installation efficiency of the sound insulation structure, bringing convenience to the staff when using it. The sound insulation cotton 214, glass wool 216 and activated carbon cotton 218 have excellent sound insulation performance, thus forming a multi-layer sound insulation structure, effectively isolating external noise, reducing the resonance noise of the door components, and thus significantly improving the quietness of the car. In addition, the activated carbon cotton 218 has a strong adsorption capacity, which can adsorb and remove harmful gases such as formaldehyde and benzene in the air inside the car, thereby purifying the air inside the car and improving the riding comfort. Through the design of the limiting groove 220, the movement of the moving block 209 can be made more stable.

[0031] The worker places the fixing frame 202 on one side of the L plate 201. At this time, the positioning plate 308 is inserted into the groove 309. Then, the worker rotates the rotating block 310 to drive the screw 302 to rotate inside the limit box 301. The rotation of the screw 302 drives the movement of the moving frame 303. At this time, the moving frame 303 drives the movement of the connecting rod 307. The rotation and movement of the connecting rod 307 pushes the limit plate 306 to slide inside the limit box 301. At this time, one end of the limit plate 306 is inserted into the positioning plate 308. At this time, the multi-stage telescopic rod 304 and the second telescopic spring 305 extend and reset, thereby achieving the effect of quick installation and disassembly of the fixing frame 202. This facilitates the subsequent disassembly and maintenance of the fixing mechanism 2 by the worker, greatly improving the daily maintenance efficiency of the device and bringing convenience to the worker during use.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A car door panel with good mute effect, comprising a car door panel body (1), the inside of the top end of the car door panel body (1) is provided with a lifting glass (101); characterized in that Further comprising: The inside of the car door panel body (1) is provided with a fixing mechanism (2), and the inside of the fixing mechanism (2) is provided with a limiting assembly (3); Wherein, the fixing mechanism (2) comprises L plates (201), the L plates (201) are installed on one side of the car door panel body (1), one side of each L plate (201) is provided with a fixed frame (202), the inside of the fixed frame (202) is inserted with an insertion plate (203), the inside of the insertion plate (203) is provided with an installation slot (204), the inside of one side of the insertion plate (203) is provided with a fixed box (205), a sliding rod (206) is slidably connected between the fixed box (205) and the installation slot (204), one end of the sliding rod (206) is provided with a sliding plate (207), a first extension spring (208) is installed between the sliding plate (207) and the inside of the fixed box (205), two sides of the insertion plate (203) are symmetrically slidably connected with moving blocks (209), two sides of the sliding rod (206) are symmetrically rotatably connected with movable rods (210), one end of the movable rod (210) is rotatably connected with the moving block (209), one side of the moving block (209) is provided with an insertion block (211), the insertion block (211) is inserted with the inside of the fixed frame (202), one end of the insertion plate (203) is provided with a connecting plate (212), the connecting plates (212) are rotatably connected with plastic strips (213), and the inside of the car door panel body (1) is provided with sound insulation cotton (214).

2. The automobile door panel with a good mute effect according to claim 1, characterized in that: One side of the sound insulation cotton (214) is adhered with a first connecting layer (215), the inside of the first connecting layer (215) is provided with glass wool (216), one side of the sound insulation cotton (214) away from the first connecting layer (215) is adhered with a second connecting layer (217), the inside of the second connecting layer (217) is provided with activated carbon cotton (218), and the outside of the sound insulation cotton (214), the glass wool (216) and the activated carbon cotton (218) is sleeved with a fiber sleeve (219).

3. The automobile door panel with a good mute effect according to claim 1, characterized in that: The limiting assembly (3) comprises a limiting box (301) mounted at one end of the L-shaped plate (201), the limiting box (301) is rotationally connected with a screw rod (302) inside, the outer side of the screw rod (302) is threadedly connected with a moving frame (303), the top end of the moving frame (303) is mounted with a multi-stage telescopic rod (304) between the moving frame (303) and the limiting box (301), the outer side of the multi-stage telescopic rod (304) is sleeved with a second telescopic spring (305), the inner side of one side of the limiting box (301) is slidably connected with a limiting plate (306), one side of the moving frame (303) is rotationally connected with a connecting rod (307), one end of the connecting rod (307) is rotationally connected with the limiting plate (306), the bottom end of the fixed frame (202) is mounted with a positioning plate (308), the inner side of the top end of the L-shaped plate (201) is provided with a groove (309), the positioning plate (308) is inserted into the groove (309), and one end of the limiting plate (306) is inserted into the positioning plate (308).

4. The automobile door panel with a good mute effect according to claim 1, characterized in that: The inner sides of the two sides of the plug plate (203) are symmetrically provided with limiting grooves (220), and the moving block (209) is slidably connected inside the limiting grooves (220).

5. The automobile door panel with a good mute effect according to claim 3, characterized in that: The top end of the screw rod (302) is mounted with a rotating block (310).

6. The automobile door panel with a good mute effect according to claim 1, characterized in that: The sliding plate (207) is slidably connected inside the fixed box (205).

7. The automobile door panel with a good mute effect according to claim 1, characterized in that: The first telescopic spring (208) is sleeved on the outer side of the sliding rod (206).