Sliding rod type gear shifting assistance additional valve

Abstract

The utility model relates to the technical field of additional valves, and discloses a sliding rod type gear shifting assistance additional valve which comprises an additional valve body, a sliding rod, an adjusting spring, a main body, a cylinder body, a push rod and a large piston, the additional valve body is fixedly connected to the main body through a screw, a second ventilation channel and a sealing ring groove are formed in the sliding rod, and a third body cavity is formed in the additional valve. In the opening process of the clutch booster, air continuously enters the third cavity to apply pressure to the upper end face of the sliding rod, when the pressure borne by the upper end face of the sliding rod is larger than the force of the adjusting spring, the sliding rod slides downwards, the sealing ring on the lower end face of the sliding rod enters the first sealing face to achieve sealing, and the sealing ring on the upper end face of the sliding rod slides out of the second sealing face. And air in the third cavity enters the gear shifting booster through the ventilation channel and the pipeline. In the separation process of the clutch booster, air is continuously exhausted from the third cavity to exert pressure on the upper end face of the sliding rod, air in the gear shifting booster is exhausted into the atmosphere from the air outlet of the additional valve through the exhaust port of the second channel through a pipeline, and therefore gear shifting is achieved easily.

Description

Technical Field

[0001] This application relates to the field of auxiliary valve technology, specifically a slide bar type gear shifting auxiliary valve. Background Technology

[0002] A clutch booster, as the name suggests, is a device that assists the clutch, helping the driver reduce effort, thereby reducing driving fatigue and ensuring driving safety. A slide-type shift booster with an auxiliary valve adds an auxiliary valve to the clutch booster. When the clutch is disengaged, the auxiliary valve opens simultaneously, allowing gas to enter the booster through a pipeline and open synchronously, thus achieving smooth gear shifting. Existing auxiliary valves, such as ceramic, lever-type, and valve-type, have relatively poor assist effect and synchronization. Furthermore, failure of the auxiliary valve can cause the entire clutch booster to fail, resulting in slow clutch shifting speeds. Utility Model Content

[0003] To address the shortcomings of existing technologies, this application provides a slide bar type shift assist auxiliary valve, which has the advantages of improving clutch shifting speed, good synchronization, and high valve structural reliability, thus solving the problems of poor synchronization and poor assist effect of auxiliary valves.

[0004] To achieve the above objectives, this application provides the following technical solution: a slide bar type shift assist auxiliary valve, including an auxiliary valve body, a slide bar body, an adjusting spring and a main body, a cylinder, a push rod, and a large piston. The main body and the auxiliary valve body are fixedly connected to the bottom of the main body by screws. The large piston is disposed inside the cylinder. The outer surface of the large piston is slidably connected to the inner side of the cylinder to form a second cavity. The bottom of the push rod is slidably connected to the inside of the main body to form a first cavity. An oil inlet is provided on the back side of the main body.

[0005] Preferably, the additional valve body has a ventilation channel one and a cavity three, and the ventilation channel one and the cavity three are connected.

[0006] Preferably, a cylindrical slot is formed inside the auxiliary valve body, and a slide rod body is installed inside the cylindrical slot of the auxiliary valve body. The slide rod body is slidably connected to the cylindrical slot of the auxiliary valve body.

[0007] Preferably, an adjusting spring is installed between the bottom of the slide bar body and the auxiliary valve body.

[0008] Preferably, the auxiliary valve body has a cylindrical groove with a sealing surface one and a sealing surface two at both ends, and the slide rod body achieves sealing and separation ventilation through the slide rod body and the sealing surface two.

[0009] Preferably, the slide rod body has slots at both ends for installing sealing rings, and the outer circle of the slide rod body is polygonal or milled into a groove to form a ventilation channel two between the slot and the cylindrical slot of the auxiliary valve body.

[0010] Preferably, the auxiliary valve body has a ventilation channel three on one side and an air outlet at the bottom, and the ventilation channel three is connected to the air outlet.

[0011] Preferably, the bottom of the auxiliary valve body is provided with an exhaust hole, which is connected to one end face of the slide bar body.

[0012] Preferably, the main body is equipped with an air inlet, a relay piston, and a valve. The valve is connected to the cavity, and the relay piston is located between the air inlet and the valve.

[0013] In summary, the beneficial effects of this application are:

[0014] In this slide-bar type shift booster auxiliary valve, the air entering chamber two also enters chamber three through venting channel one, acting on the end face of the slide bar. At this time, the sealing ring at one end of the slide bar end face seals with the sealing surface, preventing gas from entering venting channel two. However, as the pressure in chamber three gradually increases, when the air pressure acting on the end face of the slide bar exceeds that of the adjusting spring, the slide bar slides downward. The sealing ring on the lower end face of the slide bar enters the sealing surface one to achieve a seal, while the sealing ring on the upper end face of the slide bar slides out of the sealing surface two, allowing the gas in chamber three to exit from the outlet through venting channels two and three. The gas then enters the shift booster through the pipeline connected to the shift booster via the outlet, thereby achieving easy clutch shifting and improving the clutch shifting speed. Attached Figure Description

[0015] Figure 1 A sectional view of the valve is attached to this application;

[0016] Figure 2 The right view of the valve is attached to this application.

[0017] The components are as follows: 1. Main body; 2. Cylinder; 3. Push rod; 4. Large piston; 5. Cavity 1; 6. Cavity 2; 7. Air inlet; 8. Relay piston; 9. Valve; 10. Ventilation channel 1; 11. Cavity 3; 12. Slide rod body; 13. Adjusting spring; 14. Sealing surface 1; 15. Sealing surface 2; 16. Ventilation channel 3; 17. Ventilation channel 2; 18. Air outlet; 19. Exhaust port; 20. Oil inlet; 21. Auxiliary valve body. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] Please see Figure 1-2 A sliding lever-type shift assist auxiliary valve includes a main body 1, a cylinder 2, a push rod 3, a large piston 4, and an auxiliary valve body 21. The main body 1 and the auxiliary valve body 21 are fixedly connected to the bottom of the main body 1 by screws. The large piston 4 is located on the outside of the push rod 3, and its outer surface is slidably connected to a cavity 6 formed inside the cylinder 2. The bottom of the push rod 3 is slidably connected to a cavity 5 formed inside the main body 1. The auxiliary valve body 21 has a venting channel 10 and a cavity 11. A cylindrical slot is formed inside the auxiliary valve body 21, and a sliding lever body 12 is installed inside the cylindrical slot. An adjusting spring 13 is installed between the bottom of the sliding lever body 12 and the auxiliary valve body 21. The valve body 21 has a cylindrical slot with a sealing surface 14 and a sealing surface 15 inside. The slide rod body 12 is connected to the sealing surface 14 and the sealing surface 15 through a sealing ring. A ventilation channel 2 17 is formed between the slide rod body 12 and the cylindrical slot of the auxiliary valve body 21. A ventilation channel 3 16 is opened on one side of the auxiliary valve body 21. An air outlet 18 is opened at the bottom of the auxiliary valve body 21. The ventilation channel 3 16 is connected to the air outlet 18. An exhaust hole 19 is opened at the bottom of the auxiliary valve body 21. An oil inlet 20 is opened on the back side of the main body 1. An air inlet 7, a relay piston 8 and a valve 9 are installed inside the main body 1. The valve 9 is connected to the cavity 2 6. The relay piston 8 is located between the air inlet 7 and the valve 9.

[0020] Working principle: After the driver depresses the clutch master cylinder, hydraulic oil enters chamber 5 from the oil inlet 20 on the main body 1. Chamber 5 then transmits pressure to the relay piston 8, which opens valve 9. Air enters chamber 6 through the gap in the open valve 9 from the air inlet 7 on the main body 1, acting on the large piston 4. The large piston 4 pushes the push rod 3, which in turn acts on the clutch operating mechanism, achieving clutch engagement and disengagement. Simultaneously, the gas entering chamber 6 also enters chamber 3 11 through the venting channel 10, acting on the end face of the slide rod body 12. At this time, the sealing ring at one end of the slide rod body 12... The sealing surface is sealed, preventing gas from entering the second ventilation channel 17. However, as the pressure inside the third cavity 11 gradually increases, when the air pressure on the end face of the sliding rod body 12 exceeds that of the adjusting spring 13, the sliding rod body 12 slides downward. The sealing ring on the lower end face of the sliding rod body 12 enters the sealing surface 14 to achieve a seal, while the sealing ring on the upper end face of the sliding rod body 12 slides out of the sealing surface 15. This allows the gas in the third cavity 11 to exit through the second ventilation channel 17 and the third ventilation channel 16 from the outlet 18. The gas then enters the shift booster through the pipeline connected to the shift booster via the outlet 18, thus enabling easy gear shifting. The adjusting spring 13 can adjust the air pressure value for opening the sliding rod body 12, ensuring the appropriate timing for opening the shift booster.

[0021] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slide bar type shift assist auxiliary valve, characterized in that: The device includes an auxiliary valve body (21), a slide rod body (12), an adjusting spring (13), a main body (1), a cylinder (2), a push rod (3), and a large piston (4). The main body (1) and the auxiliary valve body (21) are fixedly connected to the bottom of the main body (1) by screws. The large piston (4) is located inside the cylinder (2). The outer surface of the large piston (4) is slidably connected to the inner side of the cylinder (2) to form a second cavity (6). The bottom of the push rod (3) is slidably connected to the inside of the main body (1) to form a first cavity (5). An oil inlet (20) is provided on the back side of the main body (1).

2. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The additional valve body (21) has an air passage one (10) and a cavity three (11), and the air passage one (10) and the cavity three (11) are connected.

3. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The auxiliary valve body (21) has a cylindrical slot inside, and a slide rod body (12) is installed inside the cylindrical slot of the auxiliary valve body (21). The slide rod body (12) is slidably connected to the cylindrical slot of the auxiliary valve body (21).

4. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: An adjusting spring (13) is installed between the bottom of the slide body (12) and the auxiliary valve body (21).

5. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The auxiliary valve body (21) has a cylindrical slot with sealing surface one (14) and sealing surface two (15) at both ends. The slide rod body (12) achieves sealing and separation ventilation by installing a sealing ring on the slide rod body (12) and sealing surface one (14) and sealing surface two (15).

6. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The slide rod body (12) has slots at both ends for installing sealing rings. At the same time, the outer circle of the slide rod body (12) is polygonal or milled into a groove so that it forms a ventilation channel (17) with the cylindrical slot of the auxiliary valve body (21).

7. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The auxiliary valve body (21) has a ventilation channel three (16) on one side and an air outlet (18) at the bottom. The ventilation channel three (16) is connected to the air outlet (18).

8. The slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The auxiliary valve body (21) has an exhaust hole (19) at the bottom, and the exhaust hole (19) is connected to one end face of the slide body (12).

9. A slide bar type shift assist auxiliary valve according to claim 1, characterized in that: The main body (1) is equipped with an air inlet (7), a relay piston (8) and a valve (9). The valve (9) is connected to the second cavity (6). The relay piston (8) is located between the air inlet (7) and the valve (9).

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