Booster ejector rod

Abstract

The utility model provides a booster ejector rod, and belongs to the technical field of automobile accessories. The problem that an ejector rod of an existing booster is prone to failure is solved. The booster ejector rod comprises an upper ejector rod body, a limiting boss is fixedly installed at the left end of the upper ejector rod body, a lower ejector rod body is fixedly installed on the left side of the limiting boss, a lower ball head is fixedly installed at the left end of the lower ejector rod body, an installation mechanism is arranged on the right side of the upper ejector rod body and comprises a cavity, and the cavity is formed in the right side of the upper ejector rod body. The utility model has the advantages that the noise is reduced, the risk of power-assisted failure can be reduced, and the like.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and specifically relates to a booster push rod. Background Technology

[0002] The automotive vacuum booster is an important component of the automotive braking system. Its main function is to help the driver press the brake pedal more easily and achieve more effective braking. The booster pushrod in the automotive vacuum booster is also an important component, enabling the brake pedal to connect with the piston. However, in the existing pushrod components, the parts at both ends of the pushrod will rub together during use, which can easily generate noise. Furthermore, after long-term use, the limit sleeve is prone to breakage due to aging. This can easily lead to the risk of the device failing to boost power. Summary of the Invention

[0003] The purpose of this invention is to address the aforementioned problems in the existing technology by providing an assist rod that reduces noise and lowers the risk of assist failure.

[0004] The objective of this utility model can be achieved through the following technical solution: a booster push rod includes an upper push rod, a limiting boss fixedly installed at the left end of the upper push rod, a lower push rod fixedly installed at the left side of the limiting boss, a lower ball head fixedly installed at the left end of the lower push rod, and a mounting mechanism provided on the right side of the upper push rod. The mounting mechanism includes a cavity, which is located on the right side of the upper push rod. In practical applications, the limiting boss can limit the upper and lower push rods, avoiding the risk of equipment failure due to aging and breakage of the limiting sleeve on the vacuum booster component.

[0005] This booster push rod, through the cooperation of the mounting ball head, limiting boss, lower ball head, mounting screw, permeation hole, cavity, threaded groove, filling hole and sealing bolt, can increase the lubrication of the mounting ball head surface. During use, the lubricating oil in the cavity will flow into the mounting hole through the permeation hole, so that the lubricating oil can cover the surface of the mounting ball head, thereby increasing the lubrication of the mounting ball head in the hole and avoiding friction between the mounting ball head and the inner wall of the hole, while also reducing the generation of noise.

[0006] In the aforementioned booster rod, the inner cavity of the cavity is provided with a threaded groove, and a mounting screw is movably installed within the inner cavity of the threaded groove via a thread. In practical applications, the threaded groove facilitates the installation of the mounting screw into the cavity, allowing the mounting ball head to be installed onto the upper booster rod.

[0007] In the aforementioned booster push rod, a mounting ball head is fixedly mounted on the right side of the mounting screw. Both the mounting screw and the mounting ball head have permeation holes in their inner cavities. In practical applications, the permeation holes can deliver lubricating oil to the surface of the mounting ball head.

[0008] In the aforementioned booster rod, a filling hole is provided at the top of the upper rod, and a sealing bolt is threaded into the inner cavity of the filling hole. In practical applications, the filling hole allows lubricating oil to be added into the equipment, while the sealing bolt also seals the filling hole to prevent lubricating oil from flowing out of the equipment.

[0009] In the aforementioned booster rod, wear-resistant plates are fixedly installed on the surface of the upper booster rod, and the number of wear-resistant plates is several. In practical applications, the wear-resistant plates can increase the wear resistance of the upper booster rod surface, thereby increasing the service life of the upper booster rod during use.

[0010] Compared with existing technologies, the advantages of this booster push rod are as follows: During use, the lubricating oil in the cavity will flow into the mounting hole through the permeation hole, thereby increasing the lubricity of the mounting ball head surface and preventing friction between the mounting ball head and the inner wall of the hole, thus reducing noise generation. In addition, during use, the limiting boss will also limit and guide the upper and lower push rods to avoid booster failure. Attached Figure Description

[0011] Figure 1 This is a three-dimensional view of the structure of this utility model.

[0012] Figure 2 This is an exploded perspective view of the present invention.

[0013] Figure 3 This is an exploded sectional view of the installation mechanism of a part of this utility model.

[0014] In the diagram, 1. Upper push rod; 2. Wear-resistant plate; 3. Mounting ball head; 4. Limiting boss; 5. Lower push rod; 6. Lower ball head; 7. Mounting screw; 8. Permeation hole; 9. Cavity; 10. Threaded groove; 11. Liquid filling hole; 12. Sealing bolt; 13. Mounting mechanism. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 1 , Figure 2 and Figure 3 As shown, the booster rod includes an upper booster rod 1. A limiting boss 4 is fixedly installed on the left end of the upper booster rod 1. A lower booster rod 5 is fixedly installed on the left side of the limiting boss 4. A lower ball head 6 is fixedly installed on the left end of the lower booster rod 5. An installation mechanism 13 is provided on the right side of the upper booster rod 1. The installation mechanism 13 includes a cavity 9, which is located on the right side of the upper booster rod 1.

[0017] To elaborate further, the inner cavity of cavity 9 has a threaded groove 10, and an installation screw 7 is movably installed in the inner cavity of the threaded groove 10 via threads. An installation ball head 3 is fixedly installed on the right side of the installation screw 7, and both the installation screw 7 and the installation ball head 3 have permeation holes 8 in their inner cavities.

[0018] The top of the upper push rod 1 is provided with a liquid filling hole 11, and a sealing bolt 12 is threaded into the inner cavity of the liquid filling hole 11. Wear-resistant plates 2 are fixedly installed on the surface of the upper push rod 1, and there are several wear-resistant plates 2.

[0019] In actual manufacturing, the user first screws the mounting screw 7 into the cavity 9 using the mounting ball head 3, so that the threaded groove 10 can be threadedly connected to the mounting screw 7 until the mounting screw 7 is fully inserted into the cavity 9. After inserting the mounting screw 7 into the cavity 9, the user injects a certain amount of lubricating oil into the cavity 9 through the filling hole 11. After adding the lubricating oil, the filling hole 11 is sealed with the sealing bolt 12. Then, the user installs the lower push rod 5 and the lower ball head 6 into the vacuum booster component so that the vacuum booster component can perform braking operations. After installing the lower push rod 5 and the lower ball head 6, the user connects the mounting ball head 3 to the brake pedal. Next, the user first aligns the mounting ball head 3 with the mounting hole on the pedal, and then inserts the mounting ball head 3 to connect with the pedal. When the device brakes, the lubricating oil in the cavity 9 flows into the mounting hole through the permeation hole 8, allowing the lubricating oil to cover the surface of the mounting ball head 3, thereby increasing the lubrication of the mounting ball head 3 in the hole and preventing friction between the mounting ball head 3 and the inner wall of the hole. This also reduces noise. Furthermore, when the upper push rod 1 and the lower push rod 5 are in use, the limiting boss 4 will also limit their movement to prevent the risk of assist failure due to aging and breakage of the limiting sleeve on the vacuum assist component.

[0020] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A booster rod, comprising an upper booster rod (1), characterized in that: A limiting boss (4) is fixedly installed on the left end of the upper push rod (1), and a lower push rod (5) is fixedly installed on the left side of the limiting boss (4). A lower ball head (6) is fixedly installed on the left end of the lower push rod (5). An installation mechanism (13) is provided on the right side of the upper push rod (1). The installation mechanism (13) includes a cavity (9), which is located on the right side of the upper push rod (1).

2. The booster rod according to claim 1, characterized in that, The cavity (9) has a threaded groove (10) inside, and a mounting screw (7) is installed inside the threaded groove (10) by means of thread.

3. The booster rod according to claim 2, characterized in that, An installation ball head (3) is fixedly installed on the right side of the installation screw (7), and both the installation screw (7) and the installation ball head (3) have permeation holes (8) in their inner cavities.

4. The booster rod according to claim 1, characterized in that, The top of the upper rod (1) is provided with a liquid filling hole (11), and a sealing bolt (12) is threaded into the inner cavity of the liquid filling hole (11).

5. The booster rod according to claim 1, characterized in that, Wear-resistant plates (2) are fixedly installed on the surface of the upper rod (1), and the number of wear-resistant plates (2) is several.

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