Vacuum booster push rod convenient to replace
By introducing a design that is easy to replace and length adjustment into the vacuum booster push rod, the problems of difficult replacement and unadjustment of push rods in the prior art are solved, rapid replacement and lubrication are achieved to prevent rust, and the practicality of push rods is improved sex.
Patent Information
- Application Number
- CN202421173426.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing push rods for vacuum booster are difficult to replace due to the integrated design, and the interior is prone to rust and the length cannot be adjusted, which lacks practicality.
A push rod including a convenient replacement mechanism and a length adjustment mechanism is designed. The push rod is quickly replaced and length adjustment through components such as fixing blocks, limiting pins, bolts, connecting rods, moving rods and oil boxes, and can be quickly replaced and adjusted by lubrication. Oil prevents rust.
It greatly saves replacement time, improves the practicality of the push rod, is suitable for vacuum boosters of different sizes, and avoids internal rust.
Smart Images
Figure CN222347003U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile accessories, in particular to a push rod for a vacuum booster which is easy to replace. Background Art
[0002] A vacuum booster is a device that uses vacuum to increase the force applied by the driver to the brake pedal. It is generally located between the brake pedal and the brake master cylinder. In some cases, it is combined with the master cylinder into one component. The vacuum booster is a cavity with a larger diameter. There is a piston with a push rod in the middle, which divides the cavity into two parts. The push rod is a transitional force transmission part in the vacuum booster, which mainly acts to transmit the force. The quality of the push rod directly affects the braking effect of the car. There are many kinds of push rods suitable for vacuum boosters on the market, but there are still some disadvantages.
[0003] For example, in actual use, the push rod for a general vacuum booster is designed as an integrated device, which reduces the welding process. When the vacuum booster is damaged, it cannot be easily replaced. At the same time, the inside of the vacuum booster is a large cavity with a piston. After long-term use, rust will appear inside. In addition, the push rod length for each vacuum booster is different. Generally, the length of the push rod cannot be adjusted, which lacks practicality. Therefore, we propose a push rod for a vacuum booster that is easy to replace in order to solve the above problems. Utility Model Content
[0004] The purpose of the utility model is to provide a push rod for a vacuum booster that is easy to replace, so as to solve the problems of the current push rod for the vacuum booster proposed in the above-mentioned background technology. The integrated design reduces the welding process. When the vacuum booster is damaged, it cannot be conveniently replaced. At the same time, the inside of the vacuum booster is a large cavity with a piston arranged therein. After long-term use, rust will appear inside. In addition, the push rod length suitable for each vacuum booster is different. Generally, the length of the push rod cannot be adjusted, which lacks practicality and other problems.
[0005] To achieve the above object, the utility model provides the following technical solution: a push rod for a vacuum booster that is easy to replace, comprising:
[0006] A mounting block, a brake pedal being mounted on the right side of the mounting block;
[0007] Also includes:
[0008] A cavity, wherein a replacement mechanism is arranged on the outside of the cavity, wherein the replacement mechanism comprises a fixing block, a limit pin, a mounting hole and a bolt, a fixing block is mounted on the outside of the cavity, and the fixing block is clamped and mounted on the outside of the cavity, and a limit pin is fixedly mounted inside the fixing block, and the limit pin is tightly fitted with the inside of the cavity;
[0009] A length adjustment mechanism is provided on the left side of the cavity, wherein the length adjustment mechanism includes a connecting rod, a moving rod, a positioning hole and a fixing screw, the inner left side of the cavity is threadedly connected with a connecting rod, and a moving rod is slidably installed inside the connecting rod, and positioning holes are opened at equal distances inside the connecting rod and the moving rod.
[0010] Preferably, the connecting rod and the moving rod are fixed by fixing screws, and a mounting head is fixedly mounted on the left end of the moving rod, and the mounting head is mounted inside the brake master cylinder.
[0011] Preferably, a mounting hole is opened inside the rear outer side of the fixing block, and a bolt is installed inside the mounting hole.
[0012] Preferably, a mounting block is fixedly installed on the right side of the cavity, and a protective shell is snap-fitted and installed inside the mounting block.
[0013] Preferably, a shell opening is rotatably mounted on the right side of the interior of the protective shell, and an oil box is mounted inside the protective shell, and the oil box is snap-fitted and mounted inside the rubber pad.
[0014] Preferably, the rubber pad is symmetrically arranged inside the protective shell, and electric heating wires are arranged around the inside of the protective shell.
[0015] Preferably, an oil pipe is fixedly connected to the left side of the middle of the oil box, and the oil pipe is located inside the cavity.
[0016] Compared with the prior art, the utility model has the following beneficial effects: the push rod for the vacuum booster that is easy to replace is convenient for replacing when the vacuum booster is damaged by setting a convenient replacement mechanism, which greatly saves the replacement time; at the same time, a lubrication mechanism is set to prevent the vacuum booster cavity from rusting by conveying lubricating oil into the internal cavity of the vacuum booster; in addition, a length adjustment mechanism is set to make the push rod easy to adjust, so that it is suitable for vacuum boosters of different sizes, thereby improving the practicality of the push rod;
[0017] 1. A fixing block, a limit pin, a mounting hole and a bolt are provided. A fixing block is provided on the outside of the cavity, and the fixing block is engaged with the outside of the cavity up and down. In addition, a limit pin is installed inside the fixing block, and the limit pin is inserted into the inner wall of the cavity, so that the fixing block is more firmly wrapped around the outside of the cavity. In addition, a mounting hole is provided on the outside of the rear end of the fixing block, and a bolt can be installed inside the mounting hole. The bolt will firmly fix the fixing block. That is, if the cavity needs to be replaced, the bolts fixing the fixing block are unscrewed, and the fixing block is separated up and down, so that the limit pin will also be separated from the inner wall of the cavity, and the cavity can be replaced, which greatly saves the replacement time;
[0018] 2. A connecting rod, a moving rod, a positioning hole and a fixing screw are provided. The connecting rod is connected through the left thread of the cavity. The moving rod is provided inside the connecting rod. The moving rod can slide inside the connecting rod. At the same time, positioning holes are provided inside the moving rod and the connecting rod. The connecting rod and the moving rod are fixed by inserting the fixing screw into the positioning holes of the connecting rod and the moving rod. That is, after unscrewing the fixed fixing screw, the moving rod can be grasped to move it left and right inside the connecting rod. After adjusting it to a suitable position, the fixing screw is inserted to fix the connecting rod and the moving rod. In this way, the push rod is easy to adjust, so that it is suitable for vacuum boosters of different sizes, and the practicality of the push rod is improved;
[0019] 3. A protective shell, a shell opening, an oil box and a rubber pad are provided. The protective shell is installed by snapping into the inside of the mounting block, and the shell opening is installed on the right side of the inside of the protective shell. At the same time, the oil box is installed inside the protective shell. By opening the shell opening, lubricating oil can be input into the inside of the oil box from the opening on the right side in the middle of the oil box. In addition, the oil box is snap-fitted into the rubber pad inside the protective shell. The rubber pad can reduce the impact of external factors on the oil box. Secondly, the oil pipe is fixedly connected to the left side of the middle of the oil box. The oil pipe is arranged inside the cavity. By opening the valve on the right side of the oil pipe, the oil box can transport lubricating oil to the inside of the oil pipe, and then the oil pipe transports the lubricating oil into the cavity to avoid rust in the cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a perspective structural diagram of the connection between the fixing block, the limiting pin and the mounting hole of the utility model;
[0021] Figure 2 This is a perspective structural diagram of the connection between the mounting block, the protective shell and the shell opening of the utility model;
[0022] Figure 3 This is a schematic diagram of the front cross-sectional structure of the utility model;
[0023] Figure 4 It is a schematic diagram of the top cross-sectional structure of the connection between the protective shell, shell opening and oil box of the utility model.
[0024] In the figure: 1. mounting block; 2. cavity; 3. connecting rod; 4. moving rod; 5. positioning hole; 6. fixing screw; 7. mounting head; 8. fixing block; 9. limit pin; 10. mounting hole; 11. bolt; 12. protective shell; 13. shell opening; 14. oil box; 15. rubber pad; 16. heating wire; 17. oil pipe. DETAILED DESCRIPTION
[0025] 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.
[0026] See also Figure 1-4 The utility model provides a technical solution: a push rod for a vacuum booster that is easy to replace, comprising: a mounting block 1, a cavity 2, a connecting rod 3, a moving rod 4, a positioning hole 5, a fixing screw 6, a mounting head 7, a fixing block 8, a limiting pin 9, a mounting hole 10, a bolt 11, a protective shell 12, a shell opening 13, an oil box 14, a rubber pad 15, a heating wire 16 and an oil pipe 17;
[0027] like Figure 1 and Figure 3 As shown in, the mounting block 1 is connected to the brake pedal, the left side of the mounting block 1 is installed and connected to the cavity 2, and a fixing block 8 is arranged on the outside of the cavity 2, and the fixing block 8 is engaged with the outside of the cavity 2 up and down. In addition, a limit pin 9 is installed inside the fixing block 8, and the limit pin 9 is inserted into the inner wall of the cavity 2, so that the fixing block 8 is wrapped around the outside of the cavity 2 to fix the cavity 2 more firmly. In addition, a mounting hole 10 is opened inside the outer side of the rear end of the fixing block 8, and a bolt 11 can be installed inside the mounting hole 10. The bolt 11 will firmly fix the fixing block 8. That is, when the cavity 2 is damaged and needs to be replaced, the bolt 11 fixing the fixing block 8 is unscrewed by hand, and then the engaged fixing block 8 is separated up and down, so that the limit pin 9 will also be separated from the inner wall of the cavity 2, and the cavity 2 can be replaced, which greatly saves the time for replacement;
[0028] The connecting rod 3 is connected by threading inside the left side of the cavity 2, and a moving rod 4 is arranged inside the connecting rod 3. The moving rod 4 can slide inside the connecting rod 3. At the same time, positioning holes 5 are arranged inside the moving rod 4 and the connecting rod 3, and the connecting rod 3 and the moving rod 4 can be fixed by inserting fixing screws 6 into the positioning holes 5 of the connecting rod 3 and the moving rod 4, that is, by unscrewing the fixing screws 6, the moving rod 4 can be pulled by hand to move it left and right inside the connecting rod 3, and after adjusting it to a suitable position, the fixing screws 6 are inserted into the positioning holes 5 of the connecting rod 3 and the moving rod 4 to fix the connecting rod 3 and the moving rod 4. In this way, the push rod is easy to adjust, so that it is suitable for vacuum boosters of different sizes, which improves the practicability of the push rod. The left end of the moving rod 4 is connected to a mounting head 7, and the mounting head 7 is installed in the brake master cylinder;
[0029] like Figure 2 and Figure 4 As shown in, a protective shell 12 is installed by snapping into the inside of the mounting block 1, a shell opening 13 is installed on the right side of the inside of the protective shell 12, and an oil box 14 is installed inside the protective shell 12. By opening the shell opening 13, lubricating oil can be input into the inside of the oil box 14 from the opening on the right side of the middle part of the oil box 14. In addition, the oil box 14 is snap-fitted into a rubber pad 15 installed inside the protective shell 12. The setting of the rubber pad 15 can reduce the impact of large-scale vibration on the oil box 14 caused by external factors. Secondly, an oil pipe 17 is fixedly connected to the left side of the middle part of the oil box 14. The oil pipe 17 is set inside the cavity 2. By opening the valve on the right side of the oil pipe 17, the oil box 14 can transport lubricating oil to the inside of the oil pipe 17, and then the lubricating oil in the oil pipe 17 is transmitted into the inside of the cavity 2 to avoid rusting of the cavity 2. In addition, an electric heating wire 16 is set inside the protective shell 12. When the electric heating wire 16 is turned on in winter, the electric heating wire 16 can provide heat for the oil box 14, so as to avoid the situation in which the lubricating oil in the oil box 14 cannot flow due to low temperature in winter.
[0030] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.
[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A push rod for a vacuum booster that is easy to replace, comprising: A mounting block (1), a brake pedal being mounted on the right side of the mounting block (1); It is characterized by further comprising: A cavity (2), wherein an easy-to-replace mechanism is arranged on the outside of the cavity (2), wherein the easy-to-replace mechanism comprises a fixing block (8), a limiting pin (9), a mounting hole (10) and a bolt (11), wherein a fixing block (8) is mounted on the outside of the cavity (2), and the fixing block (8) is snap-fitted and mounted on the outside of the cavity (2), and a limiting pin (9) is fixedly mounted inside the fixing block (8), and the limiting pin (9) and the inside of the cavity (2) are tightly fitted; A length adjustment mechanism is provided on the left side of the cavity (2), wherein the length adjustment mechanism comprises a connecting rod (3), a moving rod (4), a positioning hole (5) and a fixing screw (6); the connecting rod (3) is threadedly connected to the left side of the interior of the cavity (2), and the moving rod (4) is slidably installed inside the connecting rod (3), and positioning holes (5) are evenly spaced inside the connecting rod (3) and the moving rod (4).
2. The push rod for a vacuum booster that is easy to replace according to claim 1, characterized in that: The connecting rod (3) and the moving rod (4) are fixed by a fixing screw (6), and a mounting head (7) is fixedly mounted on the left end of the moving rod (4), and the mounting head (7) is mounted inside the brake master cylinder.
3. The push rod for a vacuum booster that is easy to replace according to claim 1, characterized in that: A mounting hole (10) is provided inside the rear outer side of the fixing block (8), and a bolt (11) is installed inside the mounting hole (10).
4. The push rod for a vacuum booster that is easy to replace according to claim 1, characterized in that: A mounting block (1) is fixedly mounted on the right side of the cavity (2), and a protective shell (12) is snap-fitted and mounted inside the mounting block (1).
5. The push rod for a vacuum booster that is easy to replace according to claim 4, characterized in that: A shell opening (13) is rotatably mounted on the right side of the interior of the protective shell (12), and an oil box (14) is mounted inside the protective shell (12), and the oil box (14) is snap-fitted and mounted inside the rubber pad (15).
6. The push rod for a vacuum booster that is easy to replace according to claim 5, characterized in that: The rubber pad (15) is symmetrically arranged in the front and rear of the interior of the protective shell (12), and electric heating wires (16) are arranged around the interior of the protective shell (12).
7. The push rod for a vacuum booster that is easy to replace according to claim 5, characterized in that: An oil pipe (17) is fixedly connected to the left side of the middle of the oil box (14), and the oil pipe (17) is located inside the cavity (2).