CN214092812U

CN214092812U - Automobile brake pump cover with noise reduction function

Info

Publication number: CN214092812U
Application number: CN202023215821.7U
Authority: CN
Inventors: 颜励
Original assignee: Wuxi Aosen Plastic Electronics Co ltd
Current assignee: Wuxi Aosen Plastic Electronics Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-08-31
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses an automobile brake pump cover with function of making an uproar is fallen, including the pump cover body, the inner wall of pump cover body is fixed with first sound insulation pad, and sets up the vent of two symmetric distributions, two at one side inner wall middle part of first sound insulation pad the outer wall of pump cover body is all run through to the inner wall of vent, and the inner wall of two vents all is fixed with the acoustic celotex pipe, the inner wall of acoustic celotex pipe is fixed with the syllable-dividing part that the equidistance was crisscross to be distributed. The utility model discloses when the brake pump produced the noise, the most volume of first sound-proof pad separation, but then through the acoustic celotex board separation part noise of equidistance crisscross distribution in the acoustic celotex pipe, and the amortization cotton on the acoustic celotex board can absorb the noise, then can carry out the noise elimination diffusion to the noise by the second sound-proof pad in the amortization cover through solid fixed ring and give sound insulation, the sound pad of inhaling in the acoustic celotex pipe also can absorb the noise to the effect of making an uproar falls in the realization.

Description

Automobile brake pump cover with noise reduction function

Technical Field

The utility model relates to a brake pump technical field especially relates to car brake pump cover with function of making an uproar is fallen.

Background

The brake cylinder is an indispensable chassis brake part of a brake system and mainly has the function of pushing a brake pad to rub a brake drum. The vehicle speed is reduced and stationary. After the brake is stepped on, the master cylinder generates thrust to press hydraulic oil to the slave cylinder, and a piston in the slave cylinder starts to move under the action of the hydraulic pressure to push a brake pad.

At present, the automobile brake pump can generate larger noise in the operation process, but the general brake pump does not have the noise reduction effect, so that noise pollution is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the car brake pump cover that has the function of making an uproar of falling that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the automobile brake pump cover with the noise reduction function comprises a pump cover body, wherein a first sound insulation pad is fixed on the inner wall of the pump cover body, two symmetrically distributed ventilation openings are formed in the middle of the inner wall of one side of the first sound insulation pad, the inner walls of the two ventilation openings penetrate through the outer wall of the pump cover body, sound insulation pipes are fixed on the inner walls of the two ventilation openings, sound insulation parts are fixed on the inner walls of the sound insulation pipes and are distributed in an equidistance staggered mode, annular thread grooves are formed in the outer wall of one side, away from the pump cover body, of each sound insulation pipe, a sound attenuation cover is fixed in the middle of the outer wall of the pump cover body, two symmetrically distributed sliding openings are formed in the middle of the outer wall of one side, away from the pump cover body, of each sound attenuation pipe is connected with the inner walls of the two sliding openings in a sliding mode, a dust screen is fixed on the inner wall of an outlet of each sound attenuation pipe, a sound absorption pad is fixed on the inner wall of each sound attenuation pipe, and a fixing ring is fixed on the outer wall of one side, close to each sound insulation pipe, and the outer wall of the fixing ring is provided with silencing holes distributed equidistantly, the outer wall of one side of the fixing ring, which is close to the sound insulation pipe, is fixed with an external threaded ring, the external threaded ring and an annular threaded groove form threaded connection matching, the inner wall of the silencing cover is fixed with a second sound insulation pad, and two sides of the outer wall of the silencing cover are provided with ventilation holes distributed equidistantly, and the ventilation holes penetrate through the second sound insulation pad.

Preferably, the sound insulation part includes the acoustic celotex board, and the acoustic celotex board is fixed in the inner wall of acoustic celotex pipe, the amortization groove that the equidistance distributes is seted up to one side outer wall that the acoustic celotex board was kept away from the amortization pipe, and the inner wall in amortization groove is fixed with the amortization cotton, one side outer wall that the acoustic celotex board is close to the amortization pipe is fixed with dustproof the pad.

Preferably, a limiting ring is fixed on the outer wall of the outlet of the silencing pipe, and the limiting ring is in contact with the silencing cover.

Preferably, the outer wall of the pump cover body is fixed with connecting blocks distributed equidistantly, and the outer wall of each connecting block is provided with a threaded connecting port.

Preferably, the specification of the first sound insulation pad is matched with the specification of the pump cover body, and the specification of the second sound insulation pad is matched with the specification of the silencing cover.

Preferably, the fixing ring is located inside the silencing cover, and the inner diameter of the silencing pipe, the inner diameter of the sound insulation pipe and the inner diameter of the fixing ring are the same.

The utility model has the advantages that:

1. according to the automobile brake pump cover with the noise reduction function, when the brake pump generates noise, the first sound insulation pad blocks most of sound volume, then the sound insulation plates distributed in the sound insulation pipes in an equidistance staggered mode can block part of the noise, the noise can be absorbed by the sound insulation cotton on the sound insulation plates, then the noise can be silenced and diffused into the silencing cover through the plurality of silencing holes on the fixing ring and is subjected to sound insulation by the second sound insulation pad, and the sound absorption pad in the sound insulation pipes can also absorb the noise, so that the noise reduction effect is achieved;

2. this automobile brake pump cover with function of making an uproar is fallen, dustproof pad and dust screen can prevent dust to the brake pump, and rotatable spacing ring drives annular thread piece and annular thread groove separation to be convenient for clear up or change a plurality of bloops and to the sound absorption pad.

Drawings

Fig. 1 is a schematic view of a vertical cross-sectional structure of a pump cover of an automobile brake pump with a noise reduction function provided by the utility model;

fig. 2 is a schematic front view of the pump cover of the brake pump of the automobile with noise reduction function provided by the present invention;

fig. 3 is a schematic back structural view of the pump cover of the brake pump of the automobile with noise reduction function provided by the utility model;

fig. 4 is the utility model provides a car brake pump cover look sideways at schematic structure with function of making an uproar falls.

In the figure: 1 pump cover body, 2 first sound insulating pad, 3 connecting blocks, 4 acoustic celotex pipes, 5 acoustic celotex boards, 6 amortization cotton, 7 dustproof pad, 8 amortization covers, 9 second sound insulating pad, 10 acoustic celotex pipes, 11 inhale sound pad, 12 dust screens, 13 solid fixed ring, 14 bloop, 15 spacing rings, 16 threaded connection mouth, 17 ventilation holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in 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.

Referring to fig. 1-4, an automotive brake pump cover with noise reduction function comprises a pump cover body 1, wherein a first sound insulation pad 2 is fixed on the inner wall of the pump cover body 1, two symmetrically distributed ventilation openings are formed in the middle of the inner wall of one side of the first sound insulation pad 2, the inner walls of the two ventilation openings penetrate through the outer wall of the pump cover body 1, sound insulation pipes 4 are fixed on the inner walls of the two ventilation openings, sound insulation parts are fixed on the inner walls of the sound insulation pipes 4 and are equidistantly and alternately distributed, an annular thread groove is formed in the outer wall of one side, away from the pump cover body 1, of each sound insulation pipe 4, a sound deadening cover 8 is fixed in the middle of the outer wall of the pump cover body 1, two symmetrically distributed sliding openings are formed in the middle of the outer wall of one side, away from the pump cover body 1, the inner walls of the two sliding openings are respectively and slidably connected with a sound deadening pipe 10, a dust screen 12 is fixed on the inner wall of an outlet of the sound deadening pipe 10, and a sound absorption pad 11 is fixed on the inner wall of the sound insulation pipe 10, the outer wall of one side of the silencing pipe 10 close to the sound insulation pipe 4 is fixed with a fixed ring 13, the outer wall of the fixed ring 13 is provided with silencing holes 14 distributed at equal intervals, the outer wall of one side of the fixed ring 13 close to the sound insulation pipe 4 is fixed with an external thread ring, the external thread ring and an annular thread groove form threaded matching, the inner wall of the silencing cover 8 is fixed with a second sound insulation pad 9, the two sides of the outer wall of the silencing cover 8 are respectively provided with ventilation holes 17 distributed at equal intervals, the ventilation holes 17 penetrate through the second sound insulation pad 9, when the brake pump generates noise, the first sound insulation pad 2 blocks most of sound volume, then the part of noise can be blocked by the sound insulation plate 5 distributed at equal intervals in the sound insulation pipe 4, the silencing cotton 6 on the sound insulation plate 5 can absorb the noise, then the noise can be silenced and diffused into the sound insulation cover 8 through the plurality of silencing holes 14 on the fixed ring 13 and is sound insulated by the second sound insulation pad 9, the sound absorption pad 11 in the silencing tube 10 can also absorb noise, thereby realizing the effect of noise reduction;

the sound insulation part comprises a sound insulation plate 5, the sound insulation plate 5 is fixed on the inner wall of the sound insulation pipe 4, the outer wall of one side, far away from the sound insulation pipe 10, of the sound insulation plate 5 is provided with sound insulation grooves distributed equidistantly, sound insulation cotton 6 is fixed on the inner wall of each sound insulation groove, a dust prevention pad 7 is fixed on the outer wall of one side, close to the sound insulation pipe 10, of the sound insulation plate 5, the dust prevention pad 7 and a dust prevention net 12 can prevent dust of the brake pump, and the rotatable limiting ring 15 drives the annular thread block to be separated from the annular thread groove, so that the plurality of sound insulation holes 10 and the sound absorption pads 11 can be cleaned or replaced conveniently;

the exit outer wall of hush pipe 10 is fixed with spacing ring 15, and spacing ring 15 contacts with hush cover 8, the outer wall of pump cover body 1 is fixed with connecting block 3 that the equidistance distributes, and threaded connection mouth 16 has been seted up to the outer wall of connecting block 3, the specification of first sound-proof pad 2 and the specification looks adaptation of pump cover body 1, and the specification of second sound-proof pad 9 and the specification looks adaptation of hush cover 8, gu fixed ring 13 is located hush cover 8's inside, and hush pipe 10's internal diameter, the internal diameter of hush pipe 4 and the internal diameter of fixed ring 13 are all the same.

The working principle is as follows: when the brake pump produces the noise, the most part volume of 2 separation of first acoustic celotex pad, then but through 5 separation part noises of acoustic celotex board that equidistance staggered distribution in acoustic celotex pipe 4, and amortization cotton 6 on the acoustic celotex board 5 can absorb the noise, then can carry out the noise elimination diffusion to the noise by second acoustic celotex pad 9 in amortization cover 8 through a plurality of bloops 14 on the solid fixed ring 13 and give sound insulation, the work of making an uproar is also absorbed to the noise to the sound pad 11 of inhaling in the amortization pipe 10, thereby the work of making an uproar falls in the completion, dustproof pad 7 and dust screen 12 can be dustproof to the brake pump.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The automobile brake pump cover with the noise reduction function comprises a pump cover body (1) and is characterized in that a first sound insulation pad (2) is fixed on the inner wall of the pump cover body (1), two ventilation openings are symmetrically distributed in the middle of the inner wall of one side of the first sound insulation pad (2), the inner walls of the two ventilation openings penetrate through the outer wall of the pump cover body (1), sound insulation pipes (4) are fixed on the inner walls of the two ventilation openings, sound insulation parts are fixed on the inner walls of the sound insulation pipes (4) and are distributed in an equidistance staggered mode, an annular threaded groove is formed in the outer wall of one side, away from the pump cover body (1), of each sound insulation pipe (4), a silencing cover (8) is fixed in the middle of the outer wall of one side, away from the pump cover body (1), of each silencing cover (8), two sliding openings are symmetrically distributed in the middle of the outer wall of each sliding opening, and the inner walls of the two sliding openings are connected with a silencing pipe (10) in a sliding mode, the utility model discloses a noise reduction pipe, including hush pipe (10), the export inner wall of hush pipe (10) is fixed with dust screen (12), and the inner wall of hush pipe (10) is fixed with sound absorption pad (11), hush pipe (10) are close to one side outer wall of acoustic celotex pipe (4) and are fixed with solid fixed ring (13), and the outer wall of solid fixed ring (13) sets up hush hole (14) that the equidistance distributes, gu fixed ring (13) are close to one side outer wall of acoustic celotex pipe (4) and be fixed with external screw ring, and external screw ring and annular thread groove form the spiro union cooperation, the inner wall of hush cover (8) is fixed with second sound insulation pad (9), and the ventilation hole (17) that the equidistance distributes are all seted up on the outer wall both sides of hush cover (8), ventilation hole (17) run through second sound insulation pad (9).

2. The automobile brake pump cover with the noise reduction function according to claim 1, wherein the sound insulation part comprises a sound insulation plate (5), the sound insulation plate (5) is fixed on the inner wall of the sound insulation pipe (4), the outer wall of one side, far away from the sound insulation pipe (10), of the sound insulation plate (5) is provided with sound attenuation grooves distributed at equal intervals, sound attenuation cotton (6) is fixed on the inner wall of each sound attenuation groove, and a dustproof pad (7) is fixed on the outer wall of one side, close to the sound attenuation pipe (10), of the sound insulation plate (5).

3. The automobile brake pump cover with the noise reduction function according to claim 1, characterized in that a limiting ring (15) is fixed to the outer wall of the outlet of the silencing tube (10), and the limiting ring (15) is in contact with the silencing cover (8).

4. The automobile brake pump cover with the noise reduction function according to claim 1, wherein the outer wall of the pump cover body (1) is fixed with connecting blocks (3) distributed equidistantly, and the outer wall of the connecting blocks (3) is provided with a threaded connecting port (16).

5. The automobile brake pump cover with the noise reduction function according to claim 1, wherein the first sound insulation pad (2) is adapted to the pump cover body (1) in specification, and the second sound insulation pad (9) is adapted to the muffling cover (8) in specification.

6. The automobile brake pump cover with the noise reduction function according to claim 1, characterized in that the fixing ring (13) is located inside the silencing cover (8), and the inner diameter of the silencing pipe (10), the inner diameter of the sound insulation pipe (4) and the inner diameter of the fixing ring (13) are the same.