CN210397958U - Soundproof, noise-reducing and waterproof automotive firewall rubber part - Google Patents
Soundproof, noise-reducing and waterproof automotive firewall rubber part Download PDFInfo
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- CN210397958U CN210397958U CN201920907219.8U CN201920907219U CN210397958U CN 210397958 U CN210397958 U CN 210397958U CN 201920907219 U CN201920907219 U CN 201920907219U CN 210397958 U CN210397958 U CN 210397958U
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Abstract
The utility model provides a sound-proof, noise-reducing and waterproof vehicle firewall rubber piece, which comprises a rubber piece and a framework, wherein the rubber piece comprises a threading pipe for passing a wire harness and a rubber disc arranged at the periphery of the threading pipe diameter, and a rubber gasket, the rubber gasket and the framework sequentially pass through the threading pipe, and the rubber gasket is clamped between the rubber disc and the framework; the rubber gasket comprises a sheet body provided with a through hole and a horn-shaped cylinder body, and the periphery of the sheet body provided with the through hole is fixedly connected with the maximum inner diameter of the cylinder body; the through hole of the sheet-shaped body and the inner wall of the cylinder body are connected with the outer wall of the threading pipe in an interference fit manner; the outward flange of rubber disc is equipped with the waterproof muscle that is used for laminating the sheet metal component of at least twice inside and outside setting. This patent is through adding a rubber gasket, and then increases the separation of sound propagation, improves syllable-dividing effect.
Description
Technical Field
The utility model relates to the technical field of auto-parts, concretely relates to prevent hot wall rubber spare.
Background
In the wiring harness arrangement of an automobile, an engine compartment wiring harness needs to pass through a sheet metal part of a firewall to reach indoors, and particularly, the wiring harness needs to pass through a sheet metal hole of the firewall. If the design does not adopt any protection on side wall inner panel, there is the problem that the pencil can interfere with the sheet metal component to influence the security of whole car and the reliability of function.
The protection between pencil and the sheet metal component is realized to the hot wall rubber spare that current design adopts, and the outside edge of preventing hot wall rubber spare and the pore wall of the sheet metal hole on the sheet metal component pass through the mode cooperation of joint together, prevents hot wall rubber spare and has the through-hole that supplies the pencil to pass of seting up along its axle. The wiring harness is protected by penetrating the metal plate hole through the fireproof wall rubber part. With the development of the automobile industry, the automobile functions are more and more powerful, the requirements on the NVH (noise, vibration and harshness) characteristics are more and more emphasized, and the waterproof performance of the rubber part at the position of the firewall is particularly important.
Present prevent that hot wall rubber spare often is simple single rubber spare and skeleton and links to each other the constitution, for example the hot wall sheath of preventing on the engine that patent number CN201521061907.5 discloses, including rubber spare and the skeleton of connection on rubber spare, the rubber spare has the through-hole that supplies the pencil to pass of seting up along its axle, and the skeleton cover is outside the through-hole, and the skeleton can be dismantled with rubber spare and be connected, and the skeleton includes first half and second half, and first half links fixedly through the card between the frame with second half. The framework is designed to be separated into an upper half frame and a lower half frame which can be detachably and fixedly arranged. Therefore, the wiring harness can be fixedly connected and installed on the rubber piece after the wiring harness is integrally passed through the rubber piece. Can be so that the whole simple and convenient passing of pencil, simultaneously can be firmly stable fix on the sheet metal component, be difficult to drop. However, since a single-layer rubber member is used, the sound insulation performance is to be improved.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a give sound insulation and fall waterproof automobile-used hot wall rubber spare that prevents of making an uproar to solve the current not good technical problem of hot wall rubber spare sound-proof quality.
The technical scheme of the utility model is that: a sound-insulation noise-reduction waterproof vehicular firewall rubber piece comprises a rubber piece and a framework which are detachably connected, wherein the rubber piece comprises a threading pipe for a wire harness to pass through and a rubber disc arranged at the periphery of the threading pipe, and is characterized by further comprising a rubber gasket, the rubber gasket and the framework sequentially pass through the threading pipe, and the rubber gasket is clamped between the rubber disc and the framework;
the rubber gasket comprises a sheet body provided with a through hole and a horn-shaped cylinder body, and the periphery of the sheet body provided with the through hole is fixedly connected with the maximum inner diameter of the cylinder body;
the through hole of the sheet body and the inner wall of the cylinder body are connected with the outer wall of the threading pipe in an interference fit manner;
the outward flange of rubber disc is equipped with the waterproof muscle that is used for laminating the sheet metal component of at least twice inside and outside setting.
This patent is through adding a rubber gasket, and then increases the separation of sound propagation, improves syllable-dividing effect. In addition, through optimizing the structure of rubber gasket, be connected through the platelike body and the outer wall interference fit of barrel with the threading pipe to and the rubber gasket pass through the rubber dish with both of skeleton centre gripping are fixed, are convenient for guarantee the fixed effect of rubber gasket. Realize the water-proof effects of sheet metal component and rubber disc contact department through waterproof muscle, guarantee the effect that gives sound insulation.
Further preferably, at least three reinforcing ribs extending outwards in the radial direction from the threading pipe are arranged on the side, close to the rubber gasket, of the rubber disc.
Preventing deformation of the rubber member.
Preferably, the rubber piece, the rubber gasket and the framework enclose a sound insulation cavity, a protrusion is arranged on the inner wall of the sound insulation cavity of the rubber piece, and a protrusion is arranged on the inner wall of the sound insulation cavity of the rubber gasket.
The sound insulation effect is convenient to guarantee.
Further preferably, the rubber gasket abuts against the reinforcing rib. The rubber gasket can be limited by the reinforcing ribs.
Further preferably, the outer edge of the rubber disc is provided with a flange extending inwards;
the outer edge of the framework is clamped and fixed between the rubber gasket and the flanging.
The limiting and coating of the outer edge of the framework is realized through the flanging.
Further preferably, at least three notches which are circumferentially arranged are arranged on the inner side of the flanging.
The deformation of the flanging is facilitated, and the outer edge of the framework is clamped in.
Preferably, four buckles used for being fixed on the sheet metal part are arranged on the outer side surface of the framework;
the skeleton still is equipped with the bent plate of three axial outside extensions, and three bent plate sets up respectively between two adjacent buckles to the bent plate is as the guide buckle card guide portion of going into the sheet metal component.
The fixed direction guide of buckle and sheet metal component is improved.
Further preferably, at least one waterproof rib of the at least three waterproof ribs expands outwards from left to right along the axial direction, and at least one waterproof rib contracts inwards from left to right along the axial direction.
Improve the waterproof effect with the sheet metal component contact department.
More preferably, the rubber piece and the rubber gasket are made of EPDM rubber;
the framework adopts PA 66.
The waterproof and sound insulation performance is ensured.
Drawings
Fig. 1 is an exploded view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
In the figure: 1 is the rubber spare, 2 is the rubber gasket, and 3 are the skeleton, and 4 are the chamber that gives sound insulation, and 11 are waterproof muscle, and 12 are the arch, and 13 are the threading pipe, and 14 are the strengthening rib, and 21 are the platelike body, and 22 are the barrel, and 31 are the guide, and 32 are the buckle.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Specific example 1: referring to fig. 1 to 2, a sound-insulating, noise-reducing and water-proof firewall rubber part 1 for a vehicle comprises a rubber part 1 and a framework 3 which are detachably connected, wherein the rubber part 1 comprises a threading pipe 13 for a wire harness to pass through, a rubber disc arranged at the outer periphery of the threading pipe, and a rubber gasket 2, the rubber gasket 2 and the framework 3 sequentially pass through the threading pipe 13, and the rubber gasket 2 is clamped between the rubber disc and the framework 3; the rubber gasket 2 comprises a sheet body 21 provided with a through hole and a horn-shaped cylinder body 22, and the periphery of the sheet body 21 provided with the through hole is fixedly connected with the maximum inner diameter part of the cylinder body 22; the through hole of the sheet body 21 and the inner wall of the cylinder body 22 are connected with the outer wall of the threading pipe 13 in an interference fit manner; the outward flange of rubber disc is equipped with the waterproof muscle 11 that is used for laminating the sheet metal component of setting inside and outside at least twice. This patent is through adding a rubber gasket 2, and then increases the separation of sound propagation, improves the effect that gives sound insulation. In addition, through optimizing the structure of rubber gasket 2, be connected through the platelike body and the outer wall interference fit of barrel with threading pipe 13 to and skeleton and rubber disk both are to the fixed effect of centre gripping of rubber gasket, guarantee the fixed effect of rubber gasket 2. Realize the water-proof effects of sheet metal component and rubber disc contact department through waterproof muscle 11, guarantee the effect that gives sound insulation. The threading pipe and the rubber disc are integrally formed into a rubber piece in an injection molding mode. The inner diameter of the maximum inner diameter position of the cylinder body is larger than that of the through hole, and the inner diameter of the minimum inner diameter position of the cylinder body is smaller than that of the through hole.
At least three reinforcing ribs 14 extending outwards from the threading pipe 13 in the radial direction are arranged on the side, close to the rubber gasket, of the rubber disc. Preventing deformation of the rubber member 1.
Rubber spare 1, rubber gasket 2 and skeleton 3 enclose into sound insulation chamber 4, and rubber spare 1 is located the inner wall department in sound insulation chamber 4 and is equipped with arch 12, and rubber gasket 2 is equipped with the arch in the inner wall department in sound insulation chamber 4. The sound insulation effect is convenient to guarantee. The rubber gasket 2 abuts against the reinforcing rib 14. The rubber gasket 2 can also be limited by the reinforcing ribs 14.
The outer edge of the rubber disc is provided with a flange extending inwards; the outer edge of the framework 3 is clamped and fixed between the rubber gasket 2 and the flanging. The limiting and coating of the outer edge of the framework 3 are realized through the flanging. At least three notches which are circumferentially arranged are arranged on the inner side of the flanging. The deformation of the flanging is convenient, and the outer edge of the framework 3 is clamped in. The outer side of the framework is provided with strip-shaped bulges which are arranged corresponding to the notches. The alignment of the framework and the rubber piece is convenient. The flanging clamps and fixes the outer edge of the sheet-shaped body and the outer edge of the framework between the flanging and the rubber disc. The waterproof rib is connected with the turned-over edge. That is to say, the outward flange of rubber disc is equipped with the draw-in groove that is used for the outward flange of centre gripping fixed rubber gasket and skeleton. Be equipped with on the rubber disc and be used for the spacing portion of rubber gasket and skeleton radial ascending, spacing portion is ascending both ends respectively with the rubber disc with the turn-ups link to each other, and then constitute the draw-in groove.
The outer edge of the sheet-shaped body is provided with four notches. The outer edge of the rubber disc is provided with a positioning block which is arranged opposite to the notch. The rubber gasket can be conveniently positioned in the embedding direction.
The outer side surface of the framework 3 is provided with four buckles 32 for fixing on a sheet metal part; the framework 3 is further provided with three bent plates extending axially outwards, the three bent plates are respectively arranged between two adjacent buckles 32, and the bent plates are used as guide buckles to be clamped into the guide parts 31 of the sheet metal parts. The fixed direction guide of buckle and sheet metal component is improved.
At least one waterproof rib 11 of the at least three waterproof ribs 11 expands outwards from left to right along the axial direction, and at least one waterproof rib 11 contracts inwards from left to right along the axial direction. Improve the waterproof effect with the sheet metal component contact department.
The threading pipe 13 is sequentially provided with a left extension pipe, a rubber disc connecting end and a right extension pipe along the axial direction; the left extension pipe is sequentially connected with a first equal-diameter part, a gradual change part with gradually decreasing pipe diameter and a second equal-diameter part from the position close to the rubber disc connecting end to the position far away from the rubber disc connecting end, two ends of the gradual change part are respectively butted with the first equal-diameter part and the second equal-diameter part, and the end part of the second equal-diameter part is provided with a strip-shaped notch with the length direction parallel to the axial direction; the first constant diameter part is abutted against the inner wall of the through hole of the sheet-shaped body, and the gradual change part is abutted against the inner wall of the cylinder body; the left extension pipe is sequentially provided with an inward shrinkage part and a third equal-diameter part which are connected from the end close to the rubber disc connecting end to the end far away from the rubber disc connecting end; the inward-contracting part is inward contracted from right to left from the connecting end of the connecting rubber disc to the equal-diameter part; the outside of rubber disk link is continuous with the rubber disk. The structure of the threading pipe is optimized, so that the rubber gasket can conveniently pass through the threading pipe, and the threading pipe is further convenient to be connected with a wiring harness in a tight effect. The wire harness is guided to penetrate through the right extension pipe, and the wire harness is guided out through the left extension pipe. The bending of the wire outlet end and the wire inlet end of the wire harness is facilitated. Both the left extension pipe and the right extension pipe are connected with the wiring harness in an interference fit mode.
The rubber piece and the rubber gasket are made of EPDM rubber; the skeleton was PA 66. The waterproof and sound insulation performance is ensured.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A sound-insulation noise-reduction waterproof vehicular firewall rubber piece comprises a rubber piece and a framework which are detachably connected, wherein the rubber piece comprises a threading pipe for a wire harness to pass through and a rubber disc arranged at the periphery of the threading pipe, and is characterized by further comprising a rubber gasket, the rubber gasket and the framework sequentially pass through the threading pipe, and the rubber gasket is clamped between the rubber disc and the framework;
the rubber gasket comprises a sheet body provided with a through hole and a horn-shaped cylinder body, and the periphery of the sheet body provided with the through hole is fixedly connected with the maximum inner diameter of the cylinder body;
the through hole of the sheet body and the inner wall of the cylinder body are connected with the outer wall of the threading pipe in an interference fit manner;
the outward flange of rubber disc is equipped with the waterproof muscle that is used for laminating the sheet metal component of at least twice inside and outside setting.
2. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 1, wherein: the rubber disc is provided with at least three reinforcing ribs which radially and outwards extend from the threading pipe at the side close to the rubber gasket.
3. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 2, wherein: the rubber piece, the rubber gasket and the framework enclose a sound insulation cavity, a bulge is arranged at the inner wall of the sound insulation cavity of the rubber piece, and a bulge is arranged at the inner wall of the sound insulation cavity of the rubber gasket.
4. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 2, wherein: the rubber gasket is abutted against the reinforcing ribs.
5. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 4, wherein: the outer edge of the rubber disc is provided with a flange extending inwards;
the outer edge of the framework is clamped and fixed between the rubber gasket and the flanging.
6. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 5, wherein: at least three notches which are circumferentially arranged are arranged on the inner side of the flanging.
7. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 1, wherein: the outer side surface of the framework is provided with four buckles for fixing on the sheet metal part;
the skeleton still is equipped with the bent plate of three axial outside extensions, and three bent plate sets up respectively between two adjacent buckles to the bent plate is as the guide buckle card guide portion of going into the panel beating.
8. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 1, wherein: at least one waterproof rib in at least three waterproof ribs expands outward from left to right along the axial direction, and at least one waterproof rib contracts inward from left to right along the axial direction.
9. The automotive firewall rubber part for sound insulation, noise reduction and water prevention as claimed in claim 1, wherein: the rubber piece and the rubber gasket are made of EPDM rubber;
the framework adopts PA 66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907219.8U CN210397958U (en) | 2019-06-17 | 2019-06-17 | Soundproof, noise-reducing and waterproof automotive firewall rubber part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907219.8U CN210397958U (en) | 2019-06-17 | 2019-06-17 | Soundproof, noise-reducing and waterproof automotive firewall rubber part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397958U true CN210397958U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920907219.8U Active CN210397958U (en) | 2019-06-17 | 2019-06-17 | Soundproof, noise-reducing and waterproof automotive firewall rubber part |
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| CN (1) | CN210397958U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605499A (en) * | 2020-07-01 | 2020-09-01 | 张家港天乐橡塑科技股份有限公司 | Fireproof wall rubber piece, sound insulation interlayer and manufacturing method of fireproof wall rubber piece |
-
2019
- 2019-06-17 CN CN201920907219.8U patent/CN210397958U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111605499A (en) * | 2020-07-01 | 2020-09-01 | 张家港天乐橡塑科技股份有限公司 | Fireproof wall rubber piece, sound insulation interlayer and manufacturing method of fireproof wall rubber piece |
| CN111605499B (en) * | 2020-07-01 | 2024-07-02 | 张家港天乐橡塑科技股份有限公司 | Firewall rubber part, sound insulation interlayer and manufacturing method of firewall rubber part |
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