High-toughness automobile brake chamber rubber diaphragm

Abstract

The utility model provides a high-toughness automobile brake chamber rubber diaphragm, and relates to the technical field of automobile brake diaphragms. A high-toughness automobile brake chamber rubber diaphragm comprises an outer rubber layer and an inner rubber layer, the inner rubber layer is arranged in the outer rubber layer, the outer rubber layer and the inner rubber layer are both in a bowl shape, the high-toughness automobile brake chamber rubber diaphragm further comprises corrugated grooves, and a plurality of corrugated grooves are formed in the outer side of the outer rubber layer and the inner side of the inner rubber layer. When the outer rubber layer and the inner rubber layer deform, the outer rubber layer and the inner rubber layer can better deform through the corrugated grooves, wrinkles directly generated on the outer rubber layer and the inner rubber layer are reduced, the toughness is better, the diaphragm body is not prone to being damaged, and the effect of improving the toughness of the diaphragm is achieved.

Description

Technical Field

[0001] The utility model provides a high-toughness automobile brake air chamber rubber diaphragm, which relates to the technical field of automobile brake diaphragms. Background Art

[0002] The rubber diaphragm of the automobile brake chamber is a key component in the automobile braking system. It is located in the brake chamber and is used to separate the chamber into two independent chambers: the push chamber and the reaction chamber. When the driver steps on the brake pedal, air pressure is introduced into the push chamber, causing the rubber diaphragm to move, pushing the brake mechanism, and thus achieving the braking action of the vehicle.

[0003] Existing rubber diaphragms for automobile brake chambers may have insufficient toughness due to improper material selection, production process defects, and unreasonable design. When in use, they are prone to tearing or permanent deformation when subjected to pressure changes. This not only reduces the response speed and braking effect of the braking system, but may also cause brake failure, seriously threatening driving safety. Rubber diaphragms with insufficient toughness are more likely to age and break during long-term use, shortening the service life of the braking system and increasing maintenance costs.

[0004] Therefore, it is necessary to provide a high-toughness automobile brake air chamber rubber diaphragm to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing automobile brake chamber rubber diaphragm, which has insufficient toughness and is prone to tearing or permanent deformation during use, which not only reduces the response speed and braking effect of the brake system but also may cause brake failure and seriously threaten driving safety, the utility model provides a high-toughness automobile brake chamber rubber diaphragm.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solution: a high-toughness automobile brake air chamber rubber diaphragm, including an outer rubber layer and an inner rubber layer, the inner rubber layer is arranged inside the outer rubber layer, the outer rubber layer and the inner rubber layer are both bowl-shaped, and also include corrugated grooves, and a plurality of corrugated grooves are opened on the outer side of the outer rubber layer and the inner side of the inner rubber layer.

[0007] In addition, it is particularly preferred that the outer rubber layer and the inner rubber layer are made of one or more of nitrile rubber, chloroprene rubber, EPDM rubber and silicone rubber.

[0008] In addition, it is particularly preferred that it further includes a middle layer skeleton, which is filled between the outer rubber layer and the inner rubber layer, and the outer rubber layer, the middle layer skeleton and the inner rubber layer are distributed in sequence from the outside to the inside and are integrally formed.

[0009] In addition, it is particularly preferred that the middle layer skeleton is made of one of polyester, nylon and aramid fiber materials.

[0010] In addition, it is particularly preferred that it further comprises a connecting sleeve and a metal block, the bottom of the outer rubber layer is fixedly connected with the connecting sleeve, and the metal block is embedded in the connecting sleeve.

[0011] Furthermore, it is particularly preferred that the metal block has an I-shaped longitudinal section.

[0012] In addition, it is particularly preferred that it further comprises a wear-resistant layer, and the wear-resistant layer is fixedly connected to the center of the inner rubber layer.

[0013] Compared with the prior art, the diaphragm provided by the embodiment of the utility model has the following advantages: 1. When the outer rubber layer and the inner rubber layer are deformed, the corrugated grooves enable the outer rubber layer and the inner rubber layer to deform better, reducing the wrinkles directly generated on the outer rubber layer and the inner rubber layer, making the toughness better and not easy to damage the diaphragm body, thereby achieving the effect of enhancing the toughness of the diaphragm.

[0014] 2. The middle layer skeleton increases the overall strength and toughness of the diaphragm body, provides additional structural support, improves the overall strength of the diaphragm, reduces the risk of tearing, extends its service life, and achieves the effect of enhancing the toughness and strength of the diaphragm body.

[0015] 3. By setting the metal block, the push rod is prevented from directly acting on the outer rubber layer of the diaphragm body to prevent the outer rubber layer from being punctured and damaged; by setting the wear-resistant layer, the friction between the inner rubber layer and the spring is reduced, thereby extending the service life of the inner rubber layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a schematic diagram of the three-dimensional explosion structure of the utility model.

[0018] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the outer rubber layer, the inner rubber layer and the middle layer skeleton of the utility model.

[0019] Among them, the above-mentioned drawings include the following figure marks: 1. outer rubber layer, 2. inner rubber layer, 3. corrugated groove, 4. middle layer skeleton, 5. connecting sleeve, 6. metal block, 7. wear-resistant layer. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1: A high-toughness rubber diaphragm for automobile brake chamber, see Figure 1-Figure 3 As shown, it includes an outer rubber layer 1 and an inner rubber layer 2. The inner rubber layer 2 is arranged inside the outer rubber layer 1. The outer rubber layer 1 and the inner rubber layer 2 are made of one or more of nitrile rubber, chloroprene rubber, EPDM rubber and silicone rubber materials. These materials have good mechanical strength and stability and can effectively improve the performance of the rubber diaphragm. The outer rubber layer 1 and the inner rubber layer 2 are both bowl-shaped and also include corrugated grooves 3. Five groups of corrugated grooves 3 are provided on the outer side of the outer rubber layer 1 and the inner side of the inner rubber layer 2.

[0022] During assembly, the outer rubber layer 1 faces the push rod for braking, and the inner rubber layer 2 faces the side of the return spring. When the driver steps on the brake pedal, the push rod pushes the outer rubber layer 1 to the side close to the inner rubber layer 2, so that the outer rubber layer 1 and the inner rubber layer 2 are concave inward at the same time, and the spring is deformed by force. At this time, the corrugated groove 3 allows the outer rubber layer 1 and the inner rubber layer 2 to be better deformed, reducing the wrinkles directly generated on the outer rubber layer 1 and the inner rubber layer 2, making the toughness better and not easy to damage the diaphragm body. After releasing the brake pedal, the spring pushes the inner rubber layer 2 to restore the outer rubber layer 1 and the inner rubber layer 2 to their original state.

[0023] Example 2: Based on Example 1, refer to Figure 2 and Figure 3 As shown, it also includes a middle layer skeleton 4. The middle layer skeleton 4 is filled between the outer rubber layer 1 and the inner rubber layer 2 to enhance the structural strength and toughness of the diaphragm. The middle layer skeleton 4 is made of one of polyester, nylon and aramid fiber materials. These materials have good strength and toughness, which help to enhance the toughness of the diaphragm body. The outer rubber layer 1, the middle layer skeleton 4 and the inner rubber layer 2 are distributed in sequence from the outside to the inside and are integrally formed.

[0024] The middle layer skeleton 4 increases the overall strength and toughness of the diaphragm body, provides additional structural support, and improves the overall strength of the diaphragm. When the diaphragm is subjected to pressure changes, the middle layer skeleton 4 disperses the stress, so that the diaphragm maintains its shape, reduces the risk of tearing, and extends its service life. At the same time, it can also maintain the shape of the diaphragm, ensuring the good sealing performance of the diaphragm under different working conditions.

[0025] See also Figure 2 and Figure 3 As shown, it also includes a connecting sleeve 5 and a metal block 6. The connecting sleeve 5 is fixedly connected to the bottom of the outer rubber layer 1 through integral molding. The metal block 6 is embedded in the connecting sleeve 5. The longitudinal section of the metal block 6 is an I-shape, so that the metal block 6 is easier to embed in the connecting sleeve 5 and is not easy to fall off; it also includes a wear-resistant layer 7. The wear-resistant layer 7 is fixedly connected to the center of the inner rubber layer 2 through integral molding.

[0026] The metal block 6 is provided to prevent the push rod from directly acting on the outer rubber layer 1 of the diaphragm body, so that the push rod is against the metal block 6 to prevent the outer rubber layer 1 from being punctured and damaged, or the outer rubber layer 1 from being damaged due to long-term friction between the push rod and the outer rubber layer 1; the wear-resistant layer 7 is provided to reduce the friction between the inner rubber layer 2 and the spring to prevent the inner rubber layer 2 from being worn, thereby extending the service life of the inner rubber layer 2.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A high-toughness automobile brake air chamber rubber diaphragm, comprising an outer rubber layer (1) and an inner rubber layer (2), wherein the inner rubber layer (2) is arranged inside the outer rubber layer (1), and the outer rubber layer (1) and the inner rubber layer (2) are both bowl-shaped, wherein: It also includes corrugated grooves (3), and a plurality of corrugated grooves (3) are provided on the outer side of the outer rubber layer (1) and the inner side of the inner rubber layer (2); It also comprises a connecting sleeve (5) and a metal block (6); the connecting sleeve (5) is fixedly connected to the bottom of the outer rubber layer (1), and the metal block (6) is embedded in the connecting sleeve (5).

2. A high-toughness automobile brake chamber rubber diaphragm as claimed in claim 1, characterized in that: It also includes a middle layer skeleton (4), the middle layer skeleton (4) being filled between the outer rubber layer (1) and the inner rubber layer (2), and the outer rubber layer (1), the middle layer skeleton (4) and the inner rubber layer (2) being arranged in sequence from the outside to the inside and integrally formed.

3. A high-toughness automobile brake chamber rubber diaphragm as claimed in claim 2, characterized in that: The middle layer skeleton (4) is made of one of polyester, nylon and aramid fiber materials.

4. A high-toughness automobile brake chamber rubber diaphragm as claimed in claim 1, characterized in that: The metal block (6) has an I-shaped longitudinal section.

5. A high-toughness automobile brake chamber rubber diaphragm as claimed in claim 1, characterized in that: It also includes a wear-resistant layer (7), and the wear-resistant layer (7) is fixedly connected to the center of the inner rubber layer (2).

Images