CN211592536U - Air chamber rubber diaphragm with concave boss - Google Patents
Air chamber rubber diaphragm with concave boss Download PDFInfo
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- CN211592536U CN211592536U CN201922444714.2U CN201922444714U CN211592536U CN 211592536 U CN211592536 U CN 211592536U CN 201922444714 U CN201922444714 U CN 201922444714U CN 211592536 U CN211592536 U CN 211592536U
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- concave boss
- diaphragm
- boss
- concave
- diaphragm body
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Abstract
A gas chamber rubber diaphragm with a concave boss belongs to the technical field of rubber diaphragms. A gas chamber rubber diaphragm with a concave boss comprises a diaphragm body, wherein the bottom of the diaphragm body is 5-8mm thick; a concave boss is arranged on the outer side of the center of the bottom of the diaphragm body, and the concave boss and the diaphragm body are of an integrated structure; the concave boss is in a cone shape, and the top of the concave boss is provided with a spherical pit; the diameter of the bottom of the conical concave boss is 20-30mm, and the diameter of the top of the conical concave boss is 10-15 mm; the included angle between the inclined edge of the central section of the concave boss and the bottom surface of the diaphragm body is 125-135 degrees, and the spherical radius of the spherical pit is 6-7 mm. The utility model has the advantages that: the diaphragm does not deflect.
Description
Technical Field
The utility model relates to an air chamber rubber diaphragm, in particular to air chamber rubber diaphragm of concave type boss of utensil belongs to rubber diaphragm technical field.
Background
The air chamber rubber diaphragm is formed by pressing a primary vulcanized rubber layer, a middle canvas layer and a secondary vulcanized rubber layer. When the automobile is braked, high air pressure of about 0.8MPa is generated, the air pressure is matched with a brake spring to push a rubber diaphragm of an air chamber and further push a push rod forwards, and the push rod drives a brake patch in a hub to achieve the purpose of braking. The air chamber rubber diaphragm is a core part in various middle and heavy-duty automobile brake components, and plays an important role in ensuring the safe running of the automobile.
The rubber diaphragm of the air chamber is required to resist high air pressure of about 0.8MPa, and the service life of 100 ten thousand times is ensured. The center of the bottom of the existing air chamber rubber diaphragm is not provided with a hole, so that the brake is easy to be assembled and deviated, the air chamber rubber diaphragm is damaged, and the service life is shortened. In the use process, because the jacking force of the brake spring is very large, the rubber diaphragm of the air chamber moves repeatedly, so that the center part of the rubber diaphragm of the air chamber is easy to deviate, and the phenomena of deformation, cracking and the like occur, and the service life of the rubber diaphragm of the air chamber is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air chamber rubber diaphragm of utensil concave type boss to among the above-mentioned prior art, the easy off normal defect of diaphragm central part, can reach the purpose that the diaphragm does not off normal.
In order to realize the purpose, the utility model adopts the technical scheme that: a gas chamber rubber diaphragm with a concave boss comprises a diaphragm body, wherein the bottom of the diaphragm body is 5-8mm thick;
a concave boss is arranged on the outer side of the center of the bottom of the diaphragm body, and the concave boss and the diaphragm body are of an integrated structure; the concave boss is in a cone shape, and the top of the concave boss is provided with a spherical pit;
the diameter of the bottom of the conical concave boss is 20-30mm, and the diameter of the top of the conical concave boss is 10-15 mm;
the included angle between the inclined edge of the central section of the concave boss and the bottom surface of the diaphragm body is 125-135 degrees, and the spherical radius of the spherical pit is 6-7 mm.
The bottom thickness of the diaphragm body is 6 mm.
The diameter of the bottom of the conical concave boss is 25mm, and the diameter of the top of the conical concave boss is 12.5 mm.
The inclined edge of the central section of the concave boss forms an included angle of 130 degrees with the bottom surface of the diaphragm body, and the spherical radius of the spherical pit is 6.5 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) a concave boss is added at the position of the air chamber rubber diaphragm, a spherical pit is arranged at the top of the concave boss, and positioning guide is added in the middle of the air chamber rubber diaphragm, so that the air chamber rubber diaphragm is prevented from deviating in a working running state, and the phenomenon of damage to the air chamber rubber diaphragm caused by assembling deviation of a brake is reduced;
(2) the brake spring has the advantages that the thrust can be effectively reduced, the internal stress is eliminated, the brake spring is more wear-resistant and durable compared with the existing air chamber rubber diaphragm, the service life is longer, the pressure resistance of the brake spring is improved on the premise of ensuring reliable action of the air chamber rubber diaphragm, and the service life of the air chamber rubber diaphragm is prolonged.
Drawings
FIG. 1 is a schematic diagram of: the utility model discloses a front view;
FIG. 2 is a diagram of: the utility model is a right view;
FIG. 3 is a diagram of: the utility model discloses a right side cut-away view;
FIG. 4 is a diagram of: fig. 3 is an enlarged view of a portion a.
Description of reference numerals: diaphragm body 1, concave type boss 2, spherical pit 3.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to limit the present invention.
As shown in fig. 1 to 4, the air chamber rubber diaphragm with the concave boss comprises a diaphragm body 1, wherein the bottom thickness S of the diaphragm body is 6 mm;
a concave boss 2 is arranged on the outer side of the center of the bottom of the diaphragm body, and the concave boss 2 and the diaphragm body 1 are of an integral structure; the concave boss 2 is in a cone shape, and the top of the concave boss 2 is provided with a spherical pit 3;
the diameter D of the bottom of the conical concave boss 2 is 25mm, and the diameter phi of the top of the conical concave boss 2 is 12.5 mm;
the included angle alpha between the inclined edge of the central section of the concave boss 2 and the bottom surface of the diaphragm body is 130 degrees, and the spherical radius R of the spherical pit 3 is 6.5 mm.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the ordinary changes and replacements within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (4)
1. The utility model provides an air chamber rubber diaphragm of utensil concave type boss, includes the diaphragm body, the bottom thickness of diaphragm body is 5-8mm, its characterized in that:
a concave boss is arranged on the outer side of the center of the bottom of the diaphragm body, and the concave boss and the diaphragm body are of an integrated structure; the concave boss is in a cone shape, and the top of the concave boss is provided with a spherical pit;
the diameter of the bottom of the conical concave boss is 20-30mm, and the diameter of the top of the conical concave boss is 10-15 mm;
the included angle between the inclined edge of the central section of the concave boss and the bottom surface of the diaphragm body is 125-135 degrees, and the spherical radius of the spherical pit is 6-7 mm.
2. A gas cell rubber diaphragm with a concave boss according to claim 1, wherein: the bottom thickness of the diaphragm body is 6 mm.
3. A gas cell rubber diaphragm with a concave boss according to claim 1, wherein: the diameter of the bottom of the conical concave boss is 25mm, and the diameter of the top of the conical concave boss is 12.5 mm.
4. A gas cell rubber diaphragm with a concave boss according to claim 1, wherein: the inclined edge of the central section of the concave boss forms an included angle of 130 degrees with the bottom surface of the diaphragm body, and the spherical radius of the spherical pit is 6.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922444714.2U CN211592536U (en) | 2019-12-29 | 2019-12-29 | Air chamber rubber diaphragm with concave boss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922444714.2U CN211592536U (en) | 2019-12-29 | 2019-12-29 | Air chamber rubber diaphragm with concave boss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211592536U true CN211592536U (en) | 2020-09-29 |
Family
ID=72597946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922444714.2U Active CN211592536U (en) | 2019-12-29 | 2019-12-29 | Air chamber rubber diaphragm with concave boss |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211592536U (en) |
-
2019
- 2019-12-29 CN CN201922444714.2U patent/CN211592536U/en active Active
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