CN216478593U - Air chamber before braking - Google Patents
Air chamber before braking Download PDFInfo
- Publication number
- CN216478593U CN216478593U CN202122566830.9U CN202122566830U CN216478593U CN 216478593 U CN216478593 U CN 216478593U CN 202122566830 U CN202122566830 U CN 202122566830U CN 216478593 U CN216478593 U CN 216478593U
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- fixing plate
- clamp
- clamping hoop
- strip
- hoop
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Abstract
The utility model relates to the technical field of brake chambers, in particular to a brake front air chamber, which comprises a front cover, a diaphragm and a rear cover, wherein the front cover, the diaphragm and the rear cover are connected through a clamping hoop, the clamping hoop comprises an upper clamping hoop, a lower clamping hoop and a bolt assembly, the upper clamping hoop comprises an arc-shaped clamping hoop I and a fixing plate I, the lower clamping hoop comprises an arc-shaped clamping hoop II and a fixing plate II, the fixing plate I and the fixing plate II are connected through the bolt assembly, the upper surface of the fixing plate II is provided with a strip-shaped sinking groove matched with the fixing plate I, the upper surface of the strip-shaped sinking groove in the width direction is provided with a sealing groove, a sealing strip is arranged in the sealing groove, the fixing plate I is positioned in the strip-shaped sinking groove, when the upper clamping hoop and the lower clamping hoop are connected, the fixing plate of the upper clamping hoop is buckled in the strip-shaped sinking groove in the fixing plate II, the sealing performance is good, meanwhile, the fixing plate is propped against the sealing strip to be internally provided with the sealing strip in the sealing groove to form sealing strip in the width direction, thereby guaranteeing the sealing performance of the joint of the upper clamping hoop and the lower clamping hoop and preventing the air leakage of the air chamber before braking.
Description
Technical Field
The utility model relates to the technical field of brake chambers, in particular to a front brake chamber.
Background
The function of the brake air chamber is to convert the pressure of compressed air into mechanical force for rotating the brake cam shaft, so as to realize braking action. When the automobile brakes, air enters the brake air chamber from the air inlet, the diaphragm is deformed under the action of the 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 brake.
The front air chamber for braking generally comprises a front cover and a rear cover which are connected through a clamping hoop, the front cover and the rear cover form a cavity structure, the sealing performance of the cavity must be ensured in the use process, otherwise, air leakage can occur to cause braking failure. The tightness of the clamp in the prior art is poor, or when the bolt connection is loosened, the phenomenon of air leakage can also occur.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects, the utility model provides a front brake air chamber.
The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides an air chamber before braking, contains protecgulum, diaphragm and hou gai, protecgulum, diaphragm and hou gai are connected through the clamp hoop, the clamp hoop contains clamp hoop, lower clamp hoop and bolt assembly, it contains arcuation clamp hoop one and is located the fixed plate one at arcuation clamp hoop both ends to go up the clamp hoop, the clamp hoop contains arcuation clamp hoop two and is located the fixed plate two at arcuation clamp hoop two both ends down, be connected through bolt assembly between fixed plate one and the fixed plate two, two upper surfaces of fixed plate are provided with the strip heavy groove with fixed plate one adaptation, the strip heavy groove is provided with the seal groove at its width direction's upper surface, the built-in sealing strip of seal groove, fixed plate one is located the strip heavy inslot.
According to another embodiment of the utility model, the arc-shaped clamp I and the arc-shaped clamp II are in the shape of the rectangular cross section and comprise a radial positioning surface and oblique positioning surfaces on two sides of the radial positioning surface. The oblique locating surfaces on the two sides are respectively abutted with the oblique angles of the side walls of the front cover and the rear cover, and squeeze the membrane between the front cover and the rear cover, so that the sealing performance is ensured.
According to another embodiment of the present invention, it is further included that the outer end of the oblique positioning surface is further extended with a longitudinal sealing surface. The longitudinal sealing surface and the side walls of the front cover and the rear cover form a sealing belt, so that the sealing performance is further ensured.
According to another embodiment of the present invention, it further comprises that the first fixing plate and the second arc-shaped clamping band are welded together.
According to another embodiment of the present invention, the second fixing plate and the second arc-shaped clamping band are welded together.
According to another embodiment of the present invention, it is further included that the bolt assembly includes a bolt, and a washer and two sets of nuts connected to the bolt. And the connection is prevented from loosening by adopting the fixation of double nuts.
The sealing device has the beneficial effects that when the upper clamping hoop and the lower clamping hoop are connected, the fixing plate of the upper clamping hoop is buckled in the strip-shaped sinking groove in the fixing plate II for a moment, the sealing performance is good, and meanwhile, the fixing plate is propped against the sealing groove to be internally provided with the sealing strip for a moment to form sealing in the width direction, so that the sealing performance of the connecting part of the upper clamping hoop and the lower clamping hoop is ensured, and the air leakage of an air chamber before braking is prevented.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second embodiment of the present invention;
FIG. 3 is a front view of the clip;
FIG. 4 is a left side view of the clip;
FIG. 5 is a bottom view of the upper clamp;
FIG. 6 is a top view of the lower clamp;
FIG. 7 is a schematic view of a first embodiment of a cross-section of an arcuate clamp;
FIG. 8 is a schematic view of a second embodiment of a cross-section of an arcuate clamp.
In the figure, 1, a front cover, 2, a membrane, 3, a rear cover, 4, a clamping hoop, 41, an upper clamping hoop, 411, a first arc-shaped clamping hoop, 412, a first fixing plate, 42, a lower clamping hoop, 421, a second arc-shaped clamping hoop, 422, a second fixing plate, 43, a bolt assembly, 431, a bolt, 432, a gasket, 433, a nut, 5, a strip-shaped sinking groove, 6, a sealing groove, 7, a sealing strip, 8, a radial positioning surface, 9, an oblique positioning surface, 10 and a longitudinal sealing surface.
Detailed Description
As shown in fig. 1 to 8, which are schematic structural diagrams of the present invention, a front brake air chamber includes a front cover 1, a diaphragm 2, and a rear cover 3, the front cover 1, the diaphragm 2, and the rear cover 3 are connected by a clip 4, the clip 4 includes an upper clip 41, a lower clip 42, and a bolt assembly 43, the upper clip 41 includes an arc-shaped clip 411 and a first fixing plate 412 located at two ends of the arc-shaped clip 411, the lower clip 42 includes an arc-shaped clip 421 and a second fixing plate 422 located at two ends of the arc-shaped clip 421, the first fixing plate 412 and the second fixing plate 422 are connected by the bolt assembly 43, a strip-shaped sinking groove 5 adapted to the first fixing plate 412 is disposed on an upper surface of the second fixing plate 422, a sealing groove 6 is disposed on an upper surface of the strip-shaped sinking groove 5 in a width direction thereof, a sealing strip 7 is disposed in the sealing groove 6, and the first fixing plate 412 is located in the strip-shaped sinking groove 5.
Specifically, when the upper clamp 41 and the lower clamp 42 are connected, the first fixing plate 412 of the upper clamp 41 can be buckled in the strip-shaped sinking groove 5 in the second fixing plate 422, the sealing performance is good, and meanwhile, the first fixing plate 412 can abut against the sealing strip 7 arranged in the sealing groove 6 to form sealing in the width direction, so that the sealing performance of the joint of the upper clamp 41 and the lower clamp 42 is ensured, and air leakage of an air chamber before braking is prevented.
According to another embodiment of the present invention, the arcuate clamping band 411 and the arcuate clamping band 421 have a cross section in a shape of a rectangle, and include a radial positioning surface 8 and oblique positioning surfaces 9 on both sides thereof. The oblique locating surfaces 9 on the two sides are respectively abutted to the side wall oblique angles of the front cover 1 and the rear cover 3, and squeeze the membrane 2 between the front cover 1 and the rear cover 3, so that the sealing performance is ensured.
According to another embodiment of the present invention, it is further included that the outer end of the inclined positioning surface 9 is further extended with a longitudinal sealing surface 10. The longitudinal sealing surface 10 forms a sealing band with the side walls of the front cover 1 and the back cover 3, and further ensures the sealing performance.
According to another embodiment of the present invention, it further comprises that the first fixing plate 412 is welded to the first arc-shaped clamp 411.
According to another embodiment of the present invention, it further includes that the second fixed plate 422 is welded to the second arc-shaped clamping band 421.
According to another embodiment of the present invention, it is further included that the bolt assembly 43 includes a bolt 431, and a washer 432 and two sets of nuts 433 connected to the bolt 431. And the connection is prevented from loosening by adopting the fixation of double nuts.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. The utility model provides an air chamber before braking, contains protecgulum (1), diaphragm (2) and back lid (3), protecgulum (1), diaphragm (2) and back lid (3) are connected through clamp hoop (4), characterized by, clamp hoop (4) contain last clamp hoop (41), lower clamp hoop (42) and bolt assembly (43), go up clamp hoop (41) contain arcuation clamp hoop (411) and be located the fixed plate (412) at arcuation clamp hoop (411) both ends, clamp hoop (42) contain arcuation clamp hoop two (421) and be located the fixed plate two (422) at arcuation clamp hoop two (421) both ends down, connect through bolt assembly (43) between fixed plate (412) and the fixed plate two (422), fixed plate two (422) upper surface is provided with the strip that adapts to fixed plate (412) sinks groove (5), strip sinks groove (5) and is provided with seal groove (6) at its width direction's upper surface, sealing strips (7) are arranged in the sealing grooves (6), and the first fixing plate (412) is located in the strip-shaped sinking groove (5).
2. A pre-brake air chamber according to claim 1, wherein the arcuate clamp one (411) and the arcuate clamp two (421) have a rectangular cross section comprising a radial positioning surface (8) and an oblique positioning surface (9) on both sides thereof.
3. A pre-brake chamber according to claim 2, characterised in that the outer end of the inclined location surface (9) is further extended with a longitudinal sealing surface (10).
4. A pre-brake air chamber according to claim 1, wherein the first fixing plate (412) is welded integrally with the first arcuate clamp (411).
5. The air chamber before braking as set forth in claim 1, wherein the second fixed plate (422) is welded integrally with the second arc-shaped clamp (421).
6. A pre-brake air chamber according to claim 1, wherein the bolt assembly (43) comprises a bolt (431) and a washer (432) and two sets of nuts (433) connected to the bolt (431).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122566830.9U CN216478593U (en) | 2021-10-25 | 2021-10-25 | Air chamber before braking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122566830.9U CN216478593U (en) | 2021-10-25 | 2021-10-25 | Air chamber before braking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216478593U true CN216478593U (en) | 2022-05-10 |
Family
ID=81442270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122566830.9U Active CN216478593U (en) | 2021-10-25 | 2021-10-25 | Air chamber before braking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216478593U (en) |
-
2021
- 2021-10-25 CN CN202122566830.9U patent/CN216478593U/en active Active
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