Automobile vacuum booster shell structure

Abstract

The utility model relates to the technical field of vacuum boosters, in particular to a shell structure of an automobile vacuum booster, which comprises a vacuum booster shell and a brake master cylinder, a mounting rod is fixed on the surface of the vacuum booster shell, the mounting rod is movably inserted into a through hole of the brake master cylinder, a limit block mounting groove is arranged on the surface of the mounting rod, and the limit block mounting groove is movably inserted into the brake master cylinder. One end of a limiting block is movably inserted into the limiting block mounting groove, and the other end of the limiting block extends out of the limiting block mounting groove; the brake master cylinder dismounting device has the beneficial effects that the brake master cylinder can be conveniently taken down from the mounting rod only by completely pressing the limiting block into the limiting block mounting groove and moving the limiting block away from the surface of the brake master cylinder, so that the brake master cylinder is dismounted from the vacuum booster shell; due to the structure of the vacuum booster shell, the brake master cylinder can be disassembled and assembled without plugging a wrench and other third-party tools into an engine compartment, so that the brake master cylinder can be conveniently disassembled from the vacuum booster shell in a narrow automobile engine compartment.

Description

Technical Field

[0001] This utility model relates to the field of vacuum booster technology, specifically to a housing structure for an automotive vacuum booster. Background Technology

[0002] The housing of an automotive vacuum booster is an important component of the vacuum booster, and its structural design has a significant impact on the performance and service life of the vacuum booster. The brake master cylinder is installed on the housing of the automotive vacuum booster.

[0003] In the existing technology, the installation method between the brake master cylinder and the vacuum booster housing involves fixing two symmetrically distributed studs on the vacuum booster housing. The surface of the brake master cylinder has pre-drilled through holes. The brake master cylinder is placed on the vacuum booster housing, and the two studs are passed through the two sets of through holes respectively. Then, the nuts are tightened to achieve the installation between the vacuum booster housing and the brake master cylinder. This method of installing the brake master cylinder between the vacuum booster housing and the vacuum booster housing is secure, simple in structure, and widely used.

[0004] However, the installation method between the brake master cylinder and the vacuum booster housing, determined by the housing structure of the vacuum booster in the existing technology, often makes it difficult to inspect or replace the brake master cylinder separately after the vacuum booster is installed in the car engine compartment. This is because a wrench cannot be inserted into the engine compartment, and the brake master cylinder and vacuum booster must be removed from the engine compartment together before the brake master cylinder can be inspected or replaced, which is quite troublesome. Utility Model Content

[0005] The purpose of this utility model is to provide a housing structure for an automotive vacuum booster to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a car vacuum booster housing structure, comprising: a vacuum booster housing and a brake master cylinder, wherein a through hole is provided on the surface of the brake master cylinder, and an mounting rod is fixed on the surface of the vacuum booster housing, the mounting rod being movably inserted into the through hole of the brake master cylinder, a limit block mounting groove is provided on the surface of the mounting rod, one end of a limit block is movably inserted into the limit block mounting groove, and the other end of the limit block extends out from the limit block mounting groove.

[0007] Preferably, the mounting rods are provided in two sets, and the two sets of mounting rods are symmetrically distributed about the vacuum booster housing.

[0008] Preferably, an elastic sleeve is fitted on the surface of the mounting rod, one end of the elastic sleeve abuts against the surface of the vacuum booster housing, the other end of the elastic sleeve abuts against the surface of the brake master cylinder, and the other end of the brake master cylinder abuts against the surface of the end of the limiting block that extends out of the limiting block mounting groove.

[0009] Preferably, a cover mounting seat is fixed on the surface of the mounting rod. The cover mounting seat has a ring-shaped main structure. The inner ring of the cover mounting seat is connected to the mounting groove of the limiting block. The outer ring of the cover mounting seat is threaded, and a cover is installed on the outer ring of the cover mounting seat through the threaded connection.

[0010] Preferably, a top post is fixed on the inner wall of the cover. The top post has a circular rod structure and extends into the inner ring of the cover mounting base.

[0011] Preferably, a spring is provided in the mounting groove of the limiting block, with one end of the spring abutting against the surface of the limiting block and the other end of the spring abutting against the surface of the top post.

[0012] Preferably, the two inner walls of the symmetrical mounting groove of the limiting block are provided with guide rail limiting blocks with sliders fixed on the two end faces of the two blocks, and the two sets of sliders are slidably connected in the two sets of guide rails respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The automotive vacuum booster housing structure proposed in this utility model allows the brake master cylinder to be sandwiched between a limiting block and an elastic sleeve when it is installed on the vacuum booster housing. This allows the brake master cylinder to be mounted on the mounting rod. When it is necessary to remove the brake master cylinder from the surface of the vacuum booster housing, simply press the limiting block completely into the limiting block mounting groove. After the limiting block is removed from the surface of the brake master cylinder, the brake master cylinder can be easily removed from the mounting rod, thus completing the removal of the brake master cylinder from the vacuum booster housing. This structure of the vacuum booster housing eliminates the need to insert third-party tools such as wrenches into the engine compartment for removing and installing the brake master cylinder, thereby achieving the goal of conveniently removing the brake master cylinder from the vacuum booster housing in the confined space of the car engine compartment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention.

[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Vacuum booster housing; 2. Mounting rod; 3. Limiting block mounting groove; 4. Limiting block; 5. Elastic sleeve; 6. Spring; 7. Guide rail; 8. Slider; 9. Cover mounting base; 10. Cover; 11. Top column; 12. Brake master cylinder. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1 to 3 This utility model provides a technical solution: an automotive vacuum booster housing structure, comprising: a vacuum booster housing 1 and a brake master cylinder 12. A through hole is provided on the surface of the brake master cylinder 12. An mounting rod 2 is fixed on the surface of the vacuum booster housing 1. The mounting rod 2 is movably inserted into the through hole of the brake master cylinder 12. A limit block mounting groove 3 is provided on the surface of the mounting rod 2. One end of a limit block 4 is movably inserted into the limit block mounting groove 3. The other end of the limit block 4 extends out of the limit block mounting groove 3. Two sets of mounting rods 2 are provided, and the two sets of mounting rods 2 are symmetrically distributed about the vacuum booster housing 1. An elastic sleeve 5 is sleeved on the surface of the mounting rod 2. One end of the elastic sleeve 5 abuts against the surface of the vacuum booster housing 1, and the other end of the elastic sleeve 5 abuts against the surface of the brake master cylinder 12. The other end of the brake master cylinder 12 abuts against the surface of the end of the limit block 4 that extends out of the limit block mounting groove 3.

[0021] In actual use, when the brake master cylinder 12 is installed on the vacuum booster housing 1, the brake master cylinder 12 is held in the middle by the limiting block 4 and the elastic sleeve 5, so that the brake master cylinder 12 is installed on the mounting rod 2. When it is necessary to remove the brake master cylinder 12 from the surface of the vacuum booster housing 1, simply press the limiting block 4 completely into the limiting block mounting groove 3. After the limiting block 4 is removed from the surface of the brake master cylinder 12, the brake master cylinder 12 can be easily removed from the mounting rod 2, thus completing the removal of the brake master cylinder 12 from the vacuum booster housing 1. This structure of the vacuum booster housing 1 makes it possible to remove the brake master cylinder 12 without inserting third-party tools such as wrenches into the engine compartment, thereby achieving the purpose of conveniently removing the brake master cylinder 12 from the vacuum booster housing 1 in the narrow car engine compartment.

[0022] Example 2: Based on Example 1, in order to maintain the position of the limiting block 4 and replace the spring 6, a cover mounting seat 9 is fixed on the surface of the mounting rod 2. The cover mounting seat 9 has a ring-shaped main structure. The inner ring of the cover mounting seat 9 is connected to the limiting block mounting groove 3. The outer ring of the cover mounting seat 9 is threaded. A cover 10 is installed on the outer ring of the cover mounting seat 9 through the thread. A top post 11 is fixed on the inner wall of the cover 10. The top post 11 has a circular rod structure and extends into the inner ring of the cover mounting seat 9. A spring 6 is provided in the limiting block mounting groove 3. One end of the spring 6 abuts against the surface of the limiting block 4, and the other end of the spring 6 abuts against the surface of the top post 11. Guide rails 7 are provided on the two symmetrical inner walls of the limiting block mounting groove 3. Slider blocks 8 are fixed on the two end faces of the limiting block 4. The two sets of sliders 8 are slidably connected in the two sets of guide rails 7 respectively.

[0023] When installing the master cylinder 12, as the mounting rod 2 is inserted into the through hole on the surface of the master cylinder 12, the limiting block 4 is gradually pushed completely into the limiting block mounting groove 3 under the action of the inclined surface of the limiting block 4. At this time, the spring 6 is compressed by the limiting block 4 and the top post 11. When the master cylinder 12 abuts against the surface of the elastic sleeve 5, the master cylinder 12 leaves the opening of the limiting block mounting groove 3. Then, the spring 6 pushes one end of the limiting block 4 out of the limiting block mounting groove 3 under its own elastic action. The movement of the limiting block 4 drives the slider 8 to slide in the guide rail 7 until the slider 8 abuts against the inner wall of the guide rail 7. When the limiting block 4 stops moving, it remains in a state where one end extends out of the limiting block mounting groove 3 and the other end stays in the limiting block mounting groove 3 under the influence of the pushing force of the spring 6 and the pushing force of the inner wall of the guide rail 7 on the slider 8. When the spring 6 needs to be replaced, unscrew the cover 10 to remove it from the cover mounting base 9. Then the top post 11 will exit from the inner ring of the cover mounting base 9. The old spring 6 can then be removed from the limiting block mounting groove 3 and replaced with a new one. Finally, screw the cover 10 back onto the cover mounting base 9 to complete the replacement of the spring 6.

[0024] In actual use, when the brake master cylinder 12 is installed on the vacuum booster housing 1, the brake master cylinder 12 is held between the limiting block 4 and the elastic sleeve 5, thus allowing the brake master cylinder 12 to be mounted on the mounting rod 2. When it is necessary to remove the brake master cylinder 12 from the surface of the vacuum booster housing 1, simply press the limiting block 4 completely into the limiting block mounting groove 3. After the limiting block 4 is removed from the surface of the brake master cylinder 12, the brake master cylinder 12 can be easily removed from the mounting rod 2. Remove the brake master cylinder 12 from the vacuum booster housing 1. This structure of the vacuum booster housing 1 allows for easy removal of the brake master cylinder 12 from the engine compartment without needing to insert third-party tools such as wrenches, thus achieving convenient removal of the brake master cylinder 12 from the vacuum booster housing 1 even in the confined space of a car engine compartment. During the installation of the brake master cylinder 12, as the mounting rod 2 is inserted into the through hole on the surface of the brake master cylinder 12, the limiting block 4 is gradually and completely removed under the action of its inclined surface. The spring 6 is fully pushed into the limiting block mounting groove 3. At this time, the spring 6 is compressed by the limiting block 4 and the top column 11. When the master cylinder 12 abuts against the surface of the elastic sleeve 5, the master cylinder 12 leaves the opening of the limiting block mounting groove 3. Then, under its own elasticity, the spring 6 pushes one end of the limiting block 4 out of the limiting block mounting groove 3. The movement of the limiting block 4 drives the slider 8 to slide in the guide rail 7 until the slider 8 abuts against the inner wall of the guide rail 7. The limiting block 4 then stops moving. After that, the limiting block 4 is pushed by the spring 6 and the guide rail. Under the influence of the inner wall of 7 on the pushing force of the slider 8, it maintains a state in which one end extends out of the limit block mounting groove 3 and the other end stays in the limit block mounting groove 3; when it is necessary to replace the spring 6, screw the cover 10 to unscrew the cover 10 from the cover mounting seat 9, then the top post 11 will exit from the inner ring of the cover mounting seat 9, and then the old spring 6 can be taken out from the limit block mounting groove 3 and replaced with a new limit block mounting groove 3. Finally, screw the cover 10 back onto the cover mounting seat 9 to complete the replacement of the spring 6.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automobile vacuum booster housing structure comprising: The vacuum booster shell (1) and the brake master cylinder (12), the surface of the brake master cylinder (12) is provided with a through hole, characterized in that: the surface of the vacuum booster shell (1) is fixed with a mounting rod (2), the mounting rod (2) is movably inserted into the through hole of the brake master cylinder (12), the surface of the mounting rod (2) is provided with a limit block mounting slot (3), one end of the limit block (4) is movably inserted into the limit block mounting slot (3), and the other end of the limit block (4) extends out of the limit block mounting slot (3).

2. The housing structure of a vacuum servo of an automobile according to claim 1, wherein: The mounting rod (2) is provided with two groups, and the two groups of mounting rods (2) are symmetrically distributed about the vacuum booster shell (1).

3. The housing structure of claim 1, wherein: The surface of the mounting rod (2) is sleeved with an elastic column sleeve (5), one end of the elastic column sleeve (5) abuts against the surface of the vacuum booster shell (1), the other end of the elastic column sleeve (5) abuts against the surface of the brake master cylinder (12), and the other end of the brake master cylinder (12) abuts against the surface of the end of the limit block (4) extending out of the limit block mounting slot (3).

4. The housing structure of claim 1, wherein: The surface of the mounting rod (2) is fixed with a cover mounting seat (9), the cover mounting seat (9) is in an annular body structure, the inner ring of the cover mounting seat (9) is through the limit block mounting slot (3), the outer ring of the cover mounting seat (9) is provided with a thread, and the cover (10) is connected and mounted on the outer ring of the cover mounting seat (9) through the thread.

5. The housing structure of claim 4, wherein: The inner wall of the cover (10) is fixed with a top column (11), the top column (11) is in a circular rod body structure, and the top column (11) extends into the inner ring of the cover mounting seat (9).

6. The housing structure of a vacuum servo of an automobile according to claim 5, wherein: The limit block mounting slot (3) is provided with a spring (6), one end of the spring (6) abuts against the surface of the limit block (4), and the other end of the spring (6) abuts against the surface of the top column (11).

7. The housing structure of a vacuum servo of an automobile according to Claim 1, wherein: The two end faces of the limit block (4) are fixed with a sliding block (8), and the two groups of sliding blocks (8) are respectively slidably connected in the two groups of guide rails (7).

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