CN216833944U

CN216833944U - Engine cover with noise reduction function

Info

Publication number: CN216833944U
Application number: CN202123192748.0U
Authority: CN
Inventors: 胡雷鸣; 黄辉; 刘志伟; 张俊
Original assignee: Jiangsu Senyuan Auto Parts Co ltd
Current assignee: Jiangsu Senyuan Auto Parts Co ltd
Priority date: 2021-12-19
Filing date: 2021-12-19
Publication date: 2022-06-28
Anticipated expiration: 2031-12-19

Abstract

The utility model provides an engine shroud with function of making an uproar falls, belong to engine shroud technical field, including the dustcoat that the shape is the same, the inner cover and set up the catching groove of department in the middle of the dustcoat front portion, the dustcoat all upwards little arch with the inner cover is the camber, the inner cover is fixed to be set up in the dustcoat bottom and form an inner chamber with dustcoat cover body interval, the inner chamber intussuseption is filled with the amortization cotton, inner cover body bottom sets up a amortization pad, the amortization pad four corners is fixed through the axle that draws joint of inner cover bottom four corners department, inner cover bottom both sides are close to the catching groove side and all set up the damping axle. The shock absorption shaft is arranged on the front side of the bottom of the cover body, so that the shock from the vehicle body can be effectively buffered, and the noise generated by the resonance between the cover and the vehicle body is avoided; through filling the amortization cotton in the inner chamber in the middle of setting up amortization pad and interior dustcoat in inner cover bottom, can provide twice amortization structure, can effectively reduce the noise that the engine produced.

Description

Engine cover with noise reduction function

Technical Field

The utility model relates to an engine shroud technical field, more specifically relates to an engine shroud with function of making an uproar falls.

Background

The engine is used as a core component of the car, and generally, the engine is used for maintaining the power of the car according to the functions of power conversion and power supply of the engine mainly at the front part of the car.

When the engine is arranged at the front part of a car, a cover cap can be movably arranged above a car body and the engine for the convenience of inspection and maintenance, for example, an automobile engine cover cap (patent number: 201922073791.1) relates to the technical field of automobiles, and comprises a cover cap, wherein a lock hook groove is formed in the bottom of the front end of the cover cap, a lock hook is placed in the lock hook groove, an auxiliary lock bar is connected to one side of the lock hook, sliding grooves are symmetrically connected to two sides of the auxiliary lock bar, one end of the auxiliary lock bar is connected with a fixed block, a connecting rod is connected to the middle of the fixed block, one end of the connecting rod is connected with a turntable, the connecting rod is connected with the turntable through a cylindrical pin, the top of the turntable is connected with a motor, and one end of the motor is connected with the cover cap. The utility model discloses in, add supplementary locking bar and mainly avoid the vehicle to lock the lock hook after the bump and lock and can't open the shroud, through supplementary locking bar, abandon the lock hook from the shroud, in the lock hook recess on the shroud was placed to the lock hook, the lock hook can't rock, can not lead to the fact the influence to vehicle normal use, supplementary locking bar passes through the carousel simultaneously to its switch, can used repeatedly many times.

Although the existing engine hood can play a good role in anti-locking treatment in the treatment of the locking hooks, and the auxiliary structure cannot influence the normal form of the vehicle, the vehicle can shake due to uneven road surface in the running process, so that collision and vibration between the hood and the vehicle body can generate large noise, and the noise generated during the running of the engine is also large.

SUMMERY OF THE UTILITY MODEL

The present invention provides an engine hood with noise reduction function, which can effectively buffer the vibration from the vehicle body by arranging the damping shaft at the front side of the bottom of the hood body, thereby avoiding the noise generated by the resonance between the hood and the vehicle body; through filling the amortization cotton in the inner chamber in the middle of setting up amortization pad and interior dustcoat in inner cover bottom, can provide twice amortization structure, can effectively reduce the noise that the engine produced.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an engine hood with function of making an uproar is fallen, including the dustcoat that the shape is the same, the inner cover and offer the catching groove of locating in the middle of the dustcoat front portion, the dustcoat all upwards little the arch with the inner cover is the camber, the inner cover is fixed to be set up in the dustcoat bottom and with the outer cover body interval form an inner chamber, the inner chamber intussuseption is filled with the amortization cotton, inner cover body bottom sets up a amortization pad, the amortization pad four corners is fixed through the pull-axle joint of inner cover bottom four corners department, inner cover bottom both sides are close to the catching groove side and all set up the damping shaft. The working principle is as follows: firstly, the automobile cover is arranged at the appointed position of the automobile, when the automobile normally runs and the automobile vibrates or shakes due to uneven road surface and is transmitted to the automobile body, the damping shaft at the front side of the bottom of the inner cover can play a role in damping and buffering, and noise generated by linkage vibration of the cover is avoided; secondly, the noise generated by the working of the engine can be greatly reduced under the double silencing of the silencing pad and the silencing cotton, and finally the functions of shock absorption and noise reduction are achieved.

Further preferred scheme: the damping shaft is composed of a spring, a soft cushion with the same axis is arranged at the bottom of the damping shaft, and the soft cushion is flat and cylindrical and has a diameter larger than that of the damping shaft. The cushion is arranged at the bottom of the damping shaft, so that the damping shaft can play a role in buffering, and the damping shaft can be prevented from being damaged due to friction and impact with a vehicle body structure.

Further preferred scheme: the two sides of the bottom of the inner cover are positioned at the rear side of the damping shaft and are provided with buffering strips, and the buffering strips are arranged along the edge of the inner cover and have the length which is about five sixths of the length of the edge of the inner cover. Set up the buffering strip along inner cover both sides edge, can form an isolating construction between the cover body and automobile body, avoid the cover body direct and automobile body contact, also can play the effect of shock attenuation, falling the noise.

Further preferred scheme: the damping shaft is not receive under the vibrations condition, and the height on cushion base is less than the buffering strip base height, and when the damping shaft received vibrations and reached the limit compression condition, the height on cushion base was higher than buffering strip base height. A height difference is arranged between the damping shaft and the buffering strip, when the vehicle body is not vibrated or slightly vibrated, the damping shaft is used for damping and reducing noise, and a gap is formed between the buffering strip and the vehicle body for ventilation and heat dissipation; when the automobile body receives strong vibrations compression to the limit, the buffering strip can prevent that the cover body from taking place the striking and producing the noise with the automobile body.

Further preferred scheme: the pull shaft is connected with the inner cover connecting end through a strong compression spring, the other end of the strong compression spring is fixed in the inner cover, a vertical clamping strip is arranged at the end, extending out of the inner cover, of the pull shaft, and the clamping strip protrudes towards the inner cover. The spring that sets up strong compression can utilize its compressive force will draw the axle to the pulling of inner cover side, and then makes the card strip can block the amortization pad.

Further preferred scheme: a gap is formed between the silencing pad and the inner cover to form a separate cavity. The formation of the separate cavity is beneficial to heat dissipation and is convenient to disassemble and replace.

Further preferred scheme: the surface of the outer cover body is provided with a laminar flow smooth surface. The fairing surface can reduce wind resistance on the outer cover, and further reduce noise generated by friction between the cover body and air in the driving process of the automobile.

The utility model provides an engine shroud with function of making an uproar falls has following beneficial effect:

1. the utility model arranges the damping shaft at the front side of the bottom of the cover body, which can effectively buffer the vibration from the vehicle body and further avoid the noise caused by the resonance between the cover and the vehicle body; set up the buffering strip along inner cover both sides edge, can form an isolating construction between the cover body and automobile body, avoid the cover body direct and automobile body contact, also can play the effect of shock attenuation, falling the noise.

2. The utility model discloses the advantage lies in through filling the amortization cotton in the inner chamber that sets up amortization pad and interior dustcoat in the bottom of the inner cover, can provide twice amortization structure, can effectively reduce the noise that the engine produced.

Drawings

Fig. 1 is a schematic view of the top view structure of the present invention.

Fig. 2 is a schematic view of the bottom view of the present invention.

Fig. 3 is a schematic longitudinal sectional structural view of the present invention.

Fig. 4 is a side view schematic diagram of the present invention.

Fig. 5 is a schematic view of the compression structure of the shock absorbing shaft of the present invention.

Fig. 6 is a schematic view of the structure of the pull shaft and the silencing pad of the present invention.

In FIGS. 1-6: 1. a housing; 101. a flow surface; 2. an inner cover; 3. buckling grooves; 4. an inner cavity; 5. silencing cotton; 6. a compartment; 7. a sound-deadening pad; 8. a strong compression spring; 9. pulling the shaft; 901. clamping the strip; 10. a shock-absorbing shaft; 1001. a soft cushion; 11. a buffer strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

please refer to fig. 1 to 6:

the utility model provides an engine cover with function of making an uproar is fallen, catching groove 3 is seted up to department in the middle of 1 anterior portions of dustcoat, dustcoat 1 all upwards little protruding arc face shape that is with

inner cover

2, 1 cover body surface of dustcoat sets up a laminar flow plain noodles 101, inner cover 2 is fixed to be set up in 1 bottom of dustcoat and forms an inner chamber 4 with 1 cover body interval of dustcoat, the intussuseption of inner chamber 4 intussuseption amortization cotton 5, 2 cover body bottoms of inner cover set up a amortization pad 7, there is the clearance to form between amortization pad 7 and the inner cover 2 and separate chamber 6, amortization pad 7 four corners is fixed through the pivot 9 joint of 2 bottom four corners departments of inner cover, 2 bottom both sides of inner cover are close to catching groove 3 sides and all set up the damping shaft 10 that comprises the spring, 2 bottom both sides of inner cover all set up buffering strip 11 in the damping shaft 10 rear side, buffering strip 11 is arranged and length is about five minutes of 2 marginal lengths of inner cover along 2 edges along inner cover.

The bottom of the shock absorption shaft 10 is provided with a cushion 1001 with the same axis, and the cushion 1001 is in a flat cylindrical shape and has a diameter larger than that of the shock absorption shaft 10; when the shock absorbing shaft 10 is not vibrated, the height of the bottom edge of the soft cushion 1001 is lower than that of the cushion strip 11, and when the shock absorbing shaft 10 is vibrated to reach the limit compression condition, the height of the bottom edge of the soft cushion 1001 is higher than that of the cushion strip 11.

The end of the pulling shaft 9 connected with the inner cover 2 is connected with a strong compression spring 8, the other end of the strong compression spring 8 is fixed in the inner cover 2, the end of the pulling shaft 9 extending out of the inner cover 2 is provided with a vertical clamping strip 901, and the clamping strip 901 protrudes towards the side of the inner cover 2.

The working principle is as follows: firstly, the automobile cover is arranged at the appointed position of the automobile, when the automobile normally runs and the automobile vibrates or shakes due to uneven road surface and is transmitted to the automobile body, the damping shaft 10 at the front side of the bottom of the inner cover 2 can play a role in damping and buffering, and noise generated by linkage vibration of the cover is avoided; secondly, the noise generated by the working of the engine can be greatly reduced under the double silencing of the silencing pad 7 and the silencing cotton 5, and finally the functions of shock absorption and noise reduction are achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an engine bonnet with function of making an uproar falls, includes dustcoat (1), inner cover (2) that the shape is the same and sets up catching groove (3) of department in the middle of dustcoat (1) front portion, its characterized in that: outer cover (1) and inner cover (2) all upwards little protruding arc face shape that is, inner cover (2) are fixed to be set up in outer cover (1) bottom and form an inner chamber (4) with outer cover (1) cover body interval, inner chamber (4) intussuseption amortization cotton (5), inner cover (2) cover body bottom sets up a amortization pad (7), it is fixed that draw axle (9) joint of inner cover (2) bottom four corners department is passed through in amortization pad (7) four corners, inner cover (2) bottom both sides are close to catching groove (3) side and all set up damping shaft (10).

2. The engine cover with a noise reduction function according to claim 1, wherein: the damping shaft (10) is composed of a spring, a cushion (1001) which is coaxial is arranged at the shaft bottom of the damping shaft (10), and the cushion (1001) is in a flat cylinder shape and the diameter of the cushion is larger than that of the damping shaft (10).

3. The engine cover with a noise reduction function according to claim 1, wherein: the damping shaft (10) rear side that is located inner cover (2) bottom both sides all sets up buffering strip (11), and buffering strip (11) are arranged and are about five sixths of inner cover (2) edge length along inner cover (2) edge.

4. The engine cover with a noise reduction function according to claim 1, wherein: under the condition that the shock absorption shaft (10) is not vibrated, the height of the bottom edge of the soft cushion (1001) is lower than that of the bottom edge of the buffer strip (11), and when the shock absorption shaft (10) is vibrated to reach the limit compression condition, the height of the bottom edge of the soft cushion (1001) is higher than that of the bottom edge of the buffer strip (11).

5. The engine cover with a noise reduction function according to claim 1, wherein: draw axle (9) and inner cover (2) link and be connected one strong compression spring (8), strong compression spring (8) other end is fixed in inner cover (2) cover, draws axle (9) to stretch out inner cover (2) end and sets up a vertically card strip (901), and card strip (901) are protruding towards inner cover (2) side.

6. The engine cover with a noise reduction function according to claim 1, wherein: a gap is formed between the silencing pad (7) and the inner cover (2) to form a separate cavity (6).

7. The engine cover with a noise reduction function according to claim 1, wherein: the surface of the cover body of the outer cover (1) is provided with a laminar flow smooth surface (101).