CN217814679U - Brake air chamber for vehicle - Google Patents

Abstract

The application discloses automobile-used brake chamber includes: the shell comprises an upper cover and a lower cover, wherein an air outlet pipe is arranged at one end of the upper cover, which is far away from the lower cover, a boss protruding towards the upper cover is arranged at one end of the lower cover, which is far away from the upper cover, and a through hole is arranged in the center of the boss; the clamp is arranged at the joint of the upper cover and the lower cover and used for fixing the upper cover and the lower cover; the push rod is arranged on the lower cover, one end of the push rod is positioned outside the lower cover, the other end of the push rod penetrates through the through hole and extends into the shell, and a push plate is arranged at one end of the push rod positioned in the shell; the spring is sleeved outside the push rod, one end of the spring is contacted with the push plate, and the other end of the spring is contacted with the boss; the leather membrane is arranged in the shell and connected with the push plate, and the edge of the leather membrane is positioned between the upper cover and the lower cover; wherein, still include seal structure, set up between upper cover and the lower cover and be connected with clamp and involucra.

Description

Brake air chamber for vehicle

Technical Field

The utility model belongs to the technical field of brake chamber, especially, relate to an automobile-used brake chamber.

Background

When the automobile brakes, air enters the brake chamber from the air inlet, the diaphragm is deformed under the action of air pressure, the push rod is pushed, the brake adjusting arm is driven, the brake cam is rotated, and the brake shoe friction plate is pressed to the brake drum to generate braking.

The existing brake chamber still has a lot of problems, such as: the whole sealing performance is poor, the braking effect is easily reduced, and the sealing problem is generated between the push rod and the shell and between the membrane and the shell.

The patent with publication number CN104154150a discloses a diaphragm type brake chamber, which comprises an upper cover, a diaphragm, a shell and a clamp, wherein the edge of the upper cover and the edge of the shell clamp the edge of the diaphragm in the middle; one surface of the leather membrane facing the upper cover is provided with an annular bulge; the upper cover is provided with a groove matched with the upper cover. By adopting the technical scheme, the rubber diaphragm can be stably, uniformly and centrally placed on the upper cover, and the shell is stably, uniformly and centrally placed on the rubber diaphragm without deviation; when the clamp is assembled and tightened, certain parts in the upper cover, the membrane and the shell cannot deviate due to the increase of tightening force, so that the structure overcomes the defect that parts deviate from the middle, improves the sealing performance, eliminates the hidden trouble of failure and improves the stability and reliability of products.

However, in actual use, the sealing problem still exists between the push rod and the shell and between the diaphragm and the shell, and needs to be strengthened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automobile-used brake chamber can solve above-mentioned problem.

An object of the present application is to provide a brake chamber for a vehicle, including: the shell comprises an upper cover and a lower cover, wherein an air outlet pipe is arranged at one end of the upper cover, which is far away from the lower cover, a boss protruding towards the upper cover is arranged at one end of the lower cover, which is far away from the upper cover, and a through hole is arranged in the center of the boss; the clamp is arranged at the joint of the upper cover and the lower cover and used for fixing the upper cover and the lower cover; the push rod is arranged on the lower cover, one end of the push rod is positioned outside the lower cover, the other end of the push rod penetrates through the through hole and extends into the shell, and a push plate is arranged at one end of the push rod positioned in the shell; the spring is sleeved outside the push rod, one end of the spring is contacted with the push plate, and the other end of the spring is contacted with the boss; the leather membrane is arranged in the shell and connected with the push plate, and the edge of the leather membrane is positioned between the upper cover and the lower cover; wherein, still include seal structure, set up between upper cover and the lower cover and be connected with clamp and involucra.

The vehicle brake air chamber comprises a shell, wherein the shell comprises an upper cover and a lower cover, an air outlet pipe is arranged at one end, away from the lower cover, of the upper cover, an air inlet pipe is arranged on the lower cover, a boss protruding towards the upper cover is arranged at one end, away from the upper cover, of the lower cover, and a through hole is formed in the center of the boss; the upper cover and the lower cover are fixed through a hoop, the hoop consists of two hoop bodies with the same structure, and the hoop bodies are connected through bolts and nuts; the push rod is arranged on the lower cover, one end of the push rod is positioned outside the lower cover, the other end of the push rod penetrates through the through hole and extends into the shell, and a push plate is arranged at one end of the push rod positioned in the shell; a spring is sleeved on the push plate, one end of the spring is contacted with the push plate, and the other end of the spring is contacted with the boss; the push plate is provided with a leather membrane, the leather membrane is attached to the push plate, and the edge of the leather membrane is positioned between the upper cover and the lower cover; in addition, the upper cover and the lower cover are both made of aluminum-magnesium alloy materials, so that the weight is reduced compared with the upper cover and the lower cover made of steel materials, powder spraying treatment is not needed, and the environment is protected.

Further, the sealing structure includes: the first convex ring is arranged on the upper cover, the first convex ring is obliquely arranged in the direction away from the lower cover, and a first clamping groove is formed in front of the first convex ring and the outer wall of the upper cover; the second convex ring is arranged on the lower cover, the second convex ring is obliquely arranged in the direction away from the upper cover, and a second clamping groove is formed between the second convex ring and the outer wall of the lower cover; the positioning groove is arranged between the first convex ring and the second convex ring, a positioning ring matched with the positioning groove is arranged at the edge of the leather membrane, and the section of the positioning ring is trapezoidal; wherein, the one end of clamp is equipped with the first trip with first draw-in groove adaptation, and the other end of clamp is equipped with the second trip with the adaptation of second draw-in groove.

By arranging the first convex ring on the upper cover, the first convex ring is obliquely arranged in the direction far away from the lower cover, by arranging the second convex ring on the lower cover, the second convex ring is obliquely arranged in the direction far away from the upper cover, the included angle between the first convex ring and the upper cover is the same as the included angle between the second convex ring and the lower cover, a first clamping groove is formed in front of the outer wall of the first convex ring and the upper cover, a second clamping groove is formed between the second convex ring and the outer wall of the lower cover, meanwhile, a first clamping hook matched with the first clamping groove is arranged at one end of the hoop, a second clamping hook matched with the second clamping groove is arranged at the other end of the hoop, and by matching the first clamping hook with the first clamping groove and the second clamping groove, can improve sealed effect and the firm degree of installation between clamp and first bulge loop and the second bulge loop, simultaneously, be equipped with the constant head tank between first bulge loop and the second bulge loop, the holding ring that is located the involucra edge is installed in the constant head tank, the lateral wall of holding ring can be laminated with the inner wall of clamp simultaneously, the cooperation through clamp and constant head tank is fixed with the holding ring, when the clamp locks upper cover and lower cover, first bulge loop, the second bulge loop can extrude the holding ring, the holding ring can be hugged closely with first bulge loop and second bulge loop, thereby further improved the leakproofness, sealed effect between upper cover and the lower cover has been improved, furthermore, the cross-section of holding ring is trapezoidal, the great one end of holding ring is located the outside, can play certain limiting displacement, prevent that holding ring and location from breaking away from.

Further: the end of the leather membrane close to the lower cover is also provided with a fitting ring, the fitting ring is tightly fitted with the inner surface of the lower cover, and the fitting ring is formed by a plurality of fitting blocks in annular interval distribution.

Through the laminating piece that a plurality of annular equidistance distribute on the involucra, a plurality of laminating piece combinations form the laminating ring, laminating piece and lower cover inner wall hug closely, and the shape of laminating piece can be various shapes according to the structural design of lower cover, and when carrying out the installation of involucra, through installation and laminating between a plurality of laminating pieces and the lower cover, can make the position relatively fixed between lower cover and the involucra, prevent that the installation from producing the skew, both improved sealed effect, still improved the installation effectiveness.

Furthermore, one end of the lower cover, which is close to the through hole, is provided with a mounting hole, the mounting hole is communicated with the through hole and is positioned on the same axis with the through hole, and a shaft seal is arranged in the mounting hole and is movably connected with the push rod.

Through being equipped with the mounting hole in the lower cover, the mounting hole communicates with the through-hole and the axis with the through-hole is the same, installs the bearing seal in the mounting hole, bearing seal and push rod swing joint, can effectively improve the leakproofness before push rod and the through-hole, improves the leakproofness between push rod and the mounting hole, and then improves holistic leakproofness, prevents that the gas in the casing from leaking in the through-hole.

Furthermore, one end of the boss, which is in contact with the spring, is provided with an inward concave annular groove, one end of the spring is positioned in the annular groove, one end of the push plate, which is in contact with the spring, is provided with an annular protrusion, and one end of the spring is positioned between the annular protrusion and the push rod.

Through being equipped with inside sunken annular groove on the boss to be equipped with on the push pedal to the bellied annular of boss direction protruding, the one end of spring is installed in annular groove, and the other end of spring is installed in the recess that forms between annular arch and the push rod, can play the effect of restriction spring through annular groove and the bellied cooperation of annular, takes place the skew when avoiding the spring activity, has improved holistic stability.

The utility model has the advantages that:

1. the sealing structure is improved, the upper cover is provided with the first convex ring, the lower cover is provided with the second convex ring, a first clamping groove is formed in front of the outer wall of the upper cover, a second clamping groove is formed between the second convex ring and the outer wall of the lower cover, meanwhile, one end of the clamp is provided with the first clamping hook matched with the first clamping groove, the other end of the clamp is provided with the second clamping hook matched with the second clamping groove, the positioning ring is fixed through the matching of the clamp and the positioning groove, when the upper cover and the lower cover are locked by the clamp, the positioning ring can be extruded by the first convex ring and the second convex ring, and can be tightly attached to the first convex ring and the second convex ring, so that the sealing performance is further improved, and the sealing effect between the upper cover and the lower cover is improved;

2. the installation hole is formed in the lower cover, the installation hole is communicated with the through hole and is the same as the axis of the through hole, the shaft seal is arranged in the installation hole, and the shaft seal is movably connected with the push rod, so that the sealing property between the push rod and the through hole can be effectively improved, the sealing property between the push rod and the installation hole is improved, the integral sealing property is further improved, and the gas in the shell is prevented from leaking from the through hole;

3. through the laminating piece that a plurality of rings of equidistance distribute on the involucra, a plurality of laminating piece combinations form the laminating ring, laminating piece and lower cover inner wall hug closely, and the shape of laminating piece can be various shapes according to the structural design of lower cover, and when carrying out the installation of involucra, through installation and the laminating between a plurality of laminating pieces and the lower cover, can make the position relatively fixed between lower cover and the involucra, prevent that the installation from producing the skew, both improved sealed effect, still improved the installation effectiveness.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of A in FIG. 1;

fig. 3 is a schematic structural view of the skin of the present invention.

The reference numbers in the figures are: 100. an upper cover; 110. an air outlet pipe; 200. a lower cover; 210. a boss; 211. an annular groove; 220. a through hole; 230. mounting holes; 231. shaft sealing; 300. clamping a hoop; 400. a push rod; 410. pushing the plate; 411. an annular projection; 420. a spring; 500. a skin membrane; 510. fitting a ring; 511. fitting blocks; 600. a sealing structure; 610. a first convex ring; 611. a first card slot; 620. a second convex ring; 621. a second card slot; 630. positioning a groove; 640. a positioning ring; 650. a first hook; 660. a second hook.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

The following describes the brake chamber for a vehicle according to the embodiments of the present application in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Example 1:

as shown in fig. 1, an embodiment of the present application provides a brake chamber for a vehicle, including: the shell comprises an upper cover 100 and a lower cover 200, wherein an air outlet pipe 110 is arranged at one end of the upper cover 100 far away from the lower cover 200, a boss 210 protruding towards the upper cover 100 is arranged at one end of the lower cover 200 far away from the upper cover 100, and a through hole 220 is formed in the center of the boss 210; a clip 300 provided at a connection portion of the upper cover 100 and the lower cover 200, for fixing the upper cover 100 and the lower cover 200; the push rod 400 is arranged on the lower cover 200, one end of the push rod 400 is positioned outside the lower cover 200, the other end of the push rod passes through the through hole 220 and extends into the shell, and a push plate 410 is arranged at one end of the push rod 400 positioned in the shell; a spring 420 sleeved outside the push rod 400, wherein one end of the spring 420 is in contact with the push plate 410, and the other end is in contact with the boss 210; the membrane 500 is arranged in the shell and connected with the push plate 410, and the edge of the membrane 500 is positioned between the upper cover 100 and the lower cover 200; the sealing structure 600 is disposed between the upper cover 100 and the lower cover 200 and connected to the clip 300 and the membrane 500.

In some embodiments of the present application, as shown in fig. 1, the vehicle brake chamber described above is adopted, and includes a housing, where the housing includes an upper cover 100 and a lower cover 200, an air outlet pipe 110 is disposed on one end of the upper cover 100 away from the lower cover 200, an air inlet pipe is disposed on the lower cover 200, a boss 210 protruding towards the upper cover 100 is disposed on one end of the lower cover 200 away from the upper cover 100, and a through hole 220 is disposed in the center of the boss 210; the upper cover 100 and the lower cover 200 are fixed by a hoop 300, the hoop 300 is composed of two hoop bodies with the same structure, and the hoop bodies are connected by bolts and nuts; the push rod 400 is arranged on the lower cover 200, one end of the push rod 400 is positioned outside the lower cover 200, the other end of the push rod passes through the through hole 220 and extends into the shell, and a push plate 410 is arranged at one end of the push rod 400 positioned in the shell; a spring 420 is sleeved on the push plate 410, one end of the spring 420 is contacted with the push plate 410, and the other end is contacted with the boss 210; the push plate 410 is provided with a skin 500, the skin 500 is attached to the push plate 410, and the edge of the skin 500 is positioned between the upper cover 100 and the lower cover 200; in addition, the upper cover 100 and the lower cover 200 are both made of aluminum-magnesium alloy materials, so that the weight is reduced compared with the upper cover 100 and the lower cover 200 made of steel materials, powder spraying treatment is not needed, and the environment is protected.

Example 2:

the embodiment of the application provides a brake chamber for a vehicle, which comprises the following technical characteristics besides the technical characteristics.

As shown in fig. 1 to 3, the sealing structure 600 includes: the first convex ring 610 is arranged on the upper cover 100, the first convex ring 610 is obliquely arranged in the direction away from the lower cover 200, and a first clamping groove 611 is formed in front of the first convex ring 610 and the outer wall of the upper cover 100; the second convex ring 620 is arranged on the lower cover 200, the second convex ring 620 is obliquely arranged in the direction away from the upper cover 100, and a second clamping groove 621 is formed between the second convex ring 620 and the outer wall of the lower cover 200; the positioning groove 630 is arranged between the first convex ring 610 and the second convex ring 620, the edge of the skin film 500 is provided with a positioning ring 640 matched with the positioning groove 630, and the section of the positioning ring 640 is trapezoidal; wherein, one end of the clamp 300 is provided with a first hook 650 adapted to the first slot 611, and the other end of the clamp 300 is provided with a second hook 660 adapted to the second slot 621.

In the embodiment of the present application, by providing the first protruding ring 610 on the upper cover 100, the first protruding ring 610 is disposed in an inclined manner in a direction away from the lower cover 200, by providing the second protruding ring 620 on the lower cover 200, the second protruding ring 620 is disposed in an inclined manner in a direction away from the upper cover 100, an included angle between the first protruding ring 610 and the upper cover 100 is the same as an included angle between the second protruding ring 620 and the lower cover 200, a first locking groove 611 is formed in front of the first protruding ring 610 and the outer wall of the upper cover 100, a second locking groove 621 is formed between the second protruding ring 620 and the outer wall of the lower cover 200, meanwhile, a first locking hook 650 adapted to the first locking groove 611 is provided at one end of the clip 300, a second locking hook 660 adapted to the second locking groove 621 is provided at the other end of the clip 300, and by the cooperation between the first locking hook 650 and the first locking groove 611, the second locking hook 660 and the second locking groove 621, can improve the sealed effect and the installation firm degree between clamp 300 and first bulge loop 610 and the second bulge loop 620, simultaneously, be equipped with constant head tank 630 between first bulge loop 610 and the second bulge loop 620, the holding ring 640 that is located the involucra 500 edge is installed in constant head tank 630, the lateral wall of holding ring 640 can laminate with the inner wall of clamp 300 simultaneously, cooperation through clamp 300 and constant head tank 630 is fixed with holding ring 640, when clamp 300 locks upper cover 100 and lower cover 200, first bulge loop 610, the holding ring 640 can be extruded to second bulge loop 620, holding ring 640 can be hugged closely with first bulge loop 610 and second bulge loop 620, thereby further improved the leakproofness, the sealed effect between upper cover 100 and lower cover 200 has been improved, furthermore, the cross-section of holding ring 640 is trapezoidal, the great one end of holding ring 640 is located the outside, can play certain limiting displacement, prevent holding ring 640 and location from breaking away from.

Furthermore, an attaching ring 510 is further disposed on one end of the film 500 close to the lower cover 200, the attaching ring 510 is closely attached to the inner surface of the lower cover 200, and the attaching ring 510 is formed by a plurality of attaching blocks 511 which are annularly spaced.

In some embodiments of the present application, the plurality of attachment blocks 511 are annularly and equidistantly distributed on the film 500, the plurality of attachment blocks 511 are combined to form the attachment ring 510, the attachment blocks 511 are closely attached to the inner wall of the lower cover 200, the shape of the attachment blocks 511 can be designed into various shapes according to the structure of the lower cover 200, and when the film 500 is mounted, the positions of the lower cover 200 and the film 500 can be relatively fixed by the mounting and attaching of the plurality of attachment blocks 511 and the lower cover 200, thereby preventing the mounting from being deviated, improving the sealing effect and the mounting efficiency.

Example 3:

the embodiment of the application provides a brake chamber for a vehicle, which comprises the following technical characteristics besides the technical characteristics.

As shown in fig. 1, a mounting hole 230 is provided on one end of the lower cover 200 close to the through hole 220, the mounting hole 230 is communicated with the through hole 220 and is located on the same axis as the through hole 220, a shaft seal 231 is provided in the mounting hole 230, and the shaft seal 231 is movably connected with the push rod 400.

In the embodiment of the present application, the mounting hole 230 is disposed in the lower cover 200, the mounting hole 230 is communicated with the through hole 220 and is the same as the axis of the through hole 220, the shaft seal 231 is disposed in the mounting hole 230, and the shaft seal 231 is movably connected to the push rod 400, so that the sealing performance between the push rod 400 and the through hole 220 can be effectively improved, the sealing performance between the push rod 400 and the mounting hole 230 can be improved, the overall sealing performance can be improved, and the gas in the housing can be prevented from leaking from the through hole 220.

Example 4:

the embodiment of the application provides a brake chamber for a vehicle, which comprises the following technical characteristics besides the technical characteristics.

As shown in fig. 1, an inwardly recessed annular groove 211 is formed at one end of the boss 210 contacting the spring 420, one end of the spring 420 is located in the annular groove 211, an annular protrusion 411 is formed at one end of the push plate 410 contacting the spring 420, and one end of the spring 420 is located between the annular protrusion 411 and the push rod 400.

In this application embodiment, through be equipped with inside sunken annular groove 211 on boss 210, and be equipped with on push pedal 410 to the bellied annular protrusion 411 of boss 210 direction, the one end of spring 420 is installed in annular groove 211, the other end of spring 420 is installed in the recess that forms between annular protrusion 411 and push rod 400, cooperation through annular groove 211 and annular protrusion 411 can play restriction spring 420's effect, take place the skew when avoiding spring 420 to move about, whole stability has been improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A brake chamber for a vehicle, characterized in that: the method comprises the following steps:

the shell comprises an upper cover (100) and a lower cover (200), wherein an air outlet pipe (110) is arranged at one end, far away from the lower cover (200), of the upper cover (100), a boss (210) protruding towards the upper cover (100) is arranged at one end, far away from the upper cover (100), of the lower cover (200), and a through hole (220) is formed in the center of the boss (210);

the clamp (300) is arranged at the joint of the upper cover (100) and the lower cover (200) and used for fixing the upper cover (100) and the lower cover (200);

the push rod (400) is arranged on the lower cover (200), one end of the push rod (400) is positioned outside the lower cover (200), the other end of the push rod passes through the through hole (220) and extends into the shell, and a push plate (410) is arranged at one end of the push rod (400) positioned in the shell;

the spring (420) is sleeved outside the push rod (400), one end of the spring (420) is contacted with the push plate (410), and the other end of the spring is contacted with the boss (210);

the membrane (500) is arranged in the shell and connected with the push plate (410), and the edge of the membrane (500) is positioned between the upper cover (100) and the lower cover (200);

the sealing structure (600) is arranged between the upper cover (100) and the lower cover (200) and connected with the clamp (300) and the membrane (500).

2. A brake chamber for vehicles according to claim 1, characterized in that: the sealing structure (600) comprises:

the first convex ring (610) is arranged on the upper cover (100), the first convex ring (610) is obliquely arranged in the direction away from the lower cover (200), and a first clamping groove (611) is formed in front of the first convex ring (610) and the outer wall of the upper cover (100);

the second convex ring (620) is arranged on the lower cover (200), the second convex ring (620) is obliquely arranged in the direction away from the upper cover (100), and a second clamping groove (621) is formed between the second convex ring (620) and the outer wall of the lower cover (200);

the positioning groove (630) is arranged between the first convex ring (610) and the second convex ring (620), the edge of the leather membrane (500) is provided with a positioning ring (640) matched with the positioning groove (630), and the cross section of the positioning ring (640) is trapezoidal;

wherein, the one end of clamp (300) is equipped with first trip (650) with first draw-in groove (611) adaptation, and the other end of clamp (300) is equipped with second trip (660) with second draw-in groove (621) adaptation.

3. A brake chamber for vehicles according to claim 2, characterized in that: an attaching ring (510) is further arranged at one end, close to the lower cover (200), of the film (500), the attaching ring (510) is attached to the inner surface of the lower cover (200), and a plurality of attaching blocks (511) are annularly distributed at intervals to form the attaching ring (510).

4. A brake chamber for vehicles according to claim 1, characterized in that: one end, close to the through hole (220), of the lower cover (200) is provided with a mounting hole (230), the mounting hole (230) is communicated with the through hole (220) and is located on the same axis with the through hole (220), a shaft seal (231) is arranged in the mounting hole (230), and the shaft seal (231) is movably connected with the push rod (400).

5. A brake chamber for vehicles according to claim 1, characterized in that: one end that boss (210) and spring (420) contacted is equipped with inside sunken annular groove (211), and the one end of spring (420) is located annular groove (211), one end that push pedal (410) and spring (420) contacted is equipped with annular bulge (411), and the one end of spring (420) is located between annular bulge (411) and push rod (400).

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