Disc type energy storage spring brake chamber with high sealing performance

Abstract

The utility model relates to a disc type energy storage spring brake air chamber with strong sealing performance, which comprises an air chamber body, the air chamber body comprises a driving cavity shell, a middle shell is arranged on the opening side of the driving cavity shell, and the driving cavity shell is fixedly connected with the middle shell through a quick mounting structure. The side, away from the driving cavity shell, of the middle shell is fixedly connected with the parking cavity shell through a hoop, the quick installation structure comprises a fixing sleeve integrally formed with the parking cavity shell, the fixing sleeve is of a U-shaped structure, a connecting sleeve used in cooperation with the fixing sleeve is arranged on one side of the middle shell, and the connecting sleeve is of a U-shaped structure. A limiting sleeve matched with the interior of the fixing sleeve is arranged at the bottom of the connecting sleeve. According to the utility model, the structure is reasonable, during installation, preliminary installation and positioning of the screw hole are rapidly carried out through the limiting sleeve and the buckle, then the fixing sleeve and the connecting sleeve are connected through the bolt, the connection strength and the sealing performance are further enhanced, and the sealing gasket is not in direct contact with the outside, so that the service life can be effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of brake chamber, especially a disc type energy storage spring brake chamber with strong sealing performance. BACKGROUND

[0002] The brake chamber is an important component of the automobile brake system, when the automobile brakes, the air enters the brake chamber from the air inlet, the diaphragm is deformed under the action of air pressure, the push rod is pushed, and the brake adjusting arm is driven to rotate the brake cam, the brake shoe friction plate is pressed to the brake drum to generate braking, in the braking work, the sealing performance of the brake chamber directly affects the efficiency and safety of the brake system. In the existing disc type energy storage spring brake chamber, the middle shell and the driving cavity shell are usually locked by two pieces of fixed assembly through bolts, when installing, the corresponding bolt holes need to be manually aligned, which is relatively inconvenient, and under the influence of long-term use or manufacturing tolerance, the connection between the middle shell and the driving cavity shell may not be completely sealed, which affects the braking effect and reduces the service life of the brake chamber. SUMMARY

[0003] In order to overcome the above-mentioned problems, the utility model provides a disc type energy storage spring brake chamber with strong sealing performance.

[0004] The utility model discloses the technical scheme that solves its technical problem is: a disc type energy storage spring brake chamber with strong sealing performance, including the air chamber body, the air chamber body includes the driving cavity shell, the driving cavity shell opening side is provided with the middle shell, and the driving cavity shell is connected with the middle shell through the quick installation structure fixedly, one side of the middle shell is fixedly connected with the parking cavity shell through the clamp, and the quick installation structure includes the fixed sleeve that is integrally formed with the parking cavity shell, and the fixed sleeve is U-shaped structure, one side of the middle shell is equipped with the connecting sleeve that uses the fixed sleeve cooperation, and the bottom of the connecting sleeve is equipped with the limiting sleeve that is in accord with the inside of the fixed sleeve.

[0005] As preferred, the fixed sleeve is provided with a sealing gasket on one side, and the inner diameter of the sealing gasket is slightly smaller than the outer diameter of the limiting sleeve, when the connecting sleeve and the fixed sleeve are combined, the connection strength is improved, and the sealing performance between the shells can be effectively improved.

[0006] As preferred, the connecting sleeve is provided with a plurality of connecting buckles, when the connecting sleeve and the fixed sleeve are combined, the connection strength is further improved.

[0007] Preferably, an air inlet is provided on the middle shell body, and a sealing device is provided below the air inlet. The sealing device includes a filter sleeve installed below the air inlet, and a sealing sheet is provided between the filter sleeve and the air inlet. The sealing sheet is fixedly connected to the bottom of the filter sleeve through a return spring. When air is taken in, the sealing sheet will move downward under the action of air pressure, and air will enter the air chamber through the filter. When air intake stops, the sealing sheet will move upward under the action of the return spring, closing the air inlet and preventing external dust and other impurities from entering the air chamber through the connection between the air inlet and the air supply device.

[0008] The beneficial effect of the present invention is that during installation, the limiting sleeve and the buckle are used to quickly perform preliminary installation and position the screw hole, and then the fixing sleeve and the connecting sleeve are connected by bolts, so as to further enhance the connection strength and sealing, and the sealing gasket is not in direct contact with the outside, which can effectively improve the service life. In addition, the filter sleeve can effectively reduce dust and other impurities in the air, and when braking is not required, the sealing sheet is used to prevent dust and other impurities from entering the air chamber from the connection between the air inlet and the air supply device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 It is the main view of the utility model;

[0011] Figure 2 This is a disassembled view of the connection between the driving chamber housing and the middle housing of the utility model;

[0012] Figure 3 It is a top view of the driving chamber housing of the utility model;

[0013] Figure 4 It is a top view of the middle shell of the utility model;

[0014] Figure 5 It is a cross-sectional view of the sealing device of the utility model;

[0015] In the figure, 1. Air chamber body; 2. Driving chamber shell; 3. Middle shell; 4. Mounting structure; 5. Clamp; 6. Parking chamber shell; 7. Fixing sleeve; 8. Connecting sleeve; 9. Limiting sleeve; 10. Sealing gasket; 11. Air inlet; 12. Sealing device; 13. Filter sleeve; 14. Sealing sheet; 15. Reset spring; 16. Connecting buckle. DETAILED DESCRIPTION

[0016] All features disclosed in this specification, or all steps in the disclosed methods or processes, except mutually exclusive features and / or steps, can be combined in any manner.

[0017] Any feature in the foregoing specification that is presented in terms of a single combination of features should also be perceived as presented in terms of any one of the individual features or any combination of two or more of the features.

[0018] As Figures 1-5 The disc type energy storage spring brake chamber with strong sealing performance shown in the specification, including chamber body 1, chamber body 1 including the running cavity shell 2, the running cavity shell 2 opening side is provided with the middle shell 3, the running cavity shell 2 and the middle shell 3 are fixedly connected through the quick mounting structure 4, the middle shell 3 is fixedly connected with the parking cavity shell 6 through the clamp 5 away from the running cavity shell 2 side, the quick mounting structure 4 includes the fixed sleeve 7 integrally formed with the parking cavity shell 2, the fixed sleeve 7 is U-shaped structure, one side of the middle shell 3 is provided with the connecting sleeve 8 used in cooperation with the fixed sleeve 7, the bottom of the connecting sleeve 8 is provided with the limiting sleeve 9 matched with the inside of the fixed sleeve 7.

[0019] The fixed sleeve 7 side is provided with the sealing pad 10, the inner diameter of the sealing pad 10 is slightly smaller than the outer diameter of the limiting sleeve 9, when the connecting sleeve 8 and the fixed sleeve 7 are combined, the connection strength is improved and the sealing performance between the shells can be effectively improved.

[0020] The connecting sleeve 8 is provided with a plurality of connecting buckles 16, when the connecting sleeve 8 and the fixed sleeve 7 are combined, the connection strength is further improved.

[0021] The middle shell 3 is provided with the air inlet hole 11, the sealing device 12 is arranged below the air inlet hole 11, the sealing device 12 includes the filter screen sleeve 13 installed below the air inlet hole 11, the sealing sheet 14 is arranged between the filter screen sleeve 13 and the air inlet hole 11, the sealing sheet 14 is fixedly connected with the bottom of the filter screen sleeve 13 through the reset spring 15, when air is inhaled, the sealing sheet 14 moves downward under the action of air pressure, air enters the chamber through the filter screen, when air inhalation is stopped, the sealing sheet 14 moves upward under the action of the reset spring 15, the air inlet hole 11 is closed, preventing the impurities such as dust outside from entering the chamber through the connection between the air inlet hole 11 and the air feeding device. Specific embodiments

[0022] When installing, the staff combines the middle shell 3 with the running cavity shell 2 in the form of knocking, and the quick positioning is completed under the action of the limiting sleeve 9 and the buckle 16, at this time, the fixed sleeve 7 and the connecting sleeve 8 are fixedly connected through the bolt, the connection strength and the sealing performance are further strengthened, when braking, the sealing sheet 14 moves downward under the action of air pressure, air enters the chamber from the filter screen sleeve 13, effectively reducing the impurities such as dust attached in the air, when braking is stopped, the sealing sheet 14 closes the air inlet hole 11 under the action of the reset spring 15, preventing the impurities such as dust from entering the chamber through the connection between the air inlet hole 11 and the air feeding device.

[0023] The design scheme is ingenious, and the preliminary installation and positioning of the screw hole are quickly performed through the limiting sleeve and the buckle during installation. Then, the connecting strength and the sealing performance are further strengthened by connecting and fixing the fixing sleeve and the connecting sleeve. The sealing gasket does not directly contact the outside, which can effectively improve the service life. In addition, the filter screen sleeve can effectively reduce the dust and impurities carried in the air. When braking is not required, the sealing piece prevents dust and impurities from entering the air chamber from the connection between the air inlet hole and the air feeding device.

[0024] The utility model is not limited to the foregoing specific embodiments. The utility model extends to any new feature disclosed in this specification or any new combination, as well as any new method or process step disclosed or any new combination.

Claims

1. A disc type accumulator brake chamber having a strong sealing property, characterized by: The utility model relates to a parking air chamber, including air chamber body (1), air chamber body (1) including driving cavity casing (2), driving cavity casing (2) opening side is provided with middle casing (3), driving cavity casing (2) is connected with middle casing (3) through quick mounting structure (4) fixedly, the side of middle casing (3) is away from driving cavity casing (2) is connected with parking cavity casing (6) fixedly through the clamp (5), quick mounting structure (4) includes the fixed sleeve (7) of being integrated with parking cavity casing (2), fixed sleeve (7) is U shape structure, one side of middle casing (3) is equipped with the connecting sleeve (8) of using with fixed sleeve (7) cooperation, the bottom of connecting sleeve (8) is equipped with the limit sleeve (9) of being in accord with fixed sleeve (7) inside.

2. The disc type spring brake chamber with strong sealing according to claim 1, characterized in that: The side of fixed sleeve (7) is equipped with sealing gasket (10).

3. The disc type spring brake chamber with strong sealing according to claim 1, characterized in that: Connecting sleeve (8) is equipped with a plurality of connecting buckles (16).

4. The disc type energy storage spring brake chamber with strong sealing according to claim 1, characterized in that: Middle casing (3) is opened and has air inlet (11), and air inlet (11) below is equipped with sealing device (12), sealing device (12) includes the filter screen sleeve (13) of being installed below air inlet (11), and the sealing sheet (14) is arranged between filter screen sleeve (13) and air inlet (11), and sealing sheet (14) is fixedly connected with filter screen sleeve (13) bottom through reset spring (15).

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