Space-saving clutch booster

Abstract

The space-saving clutch booster comprises a valve body, an end cover, a piston piece, a piston spring, an ejector rod, a control assembly and an adapter, the valve body is connected with the end cover, the valve body is provided with an oil inlet channel, an air inlet channel, a control cavity and an air pressure cavity, the oil inlet channel and the air inlet channel face the same direction, and the control cavity and the air pressure cavity are communicated. One end of the piston piece is connected to the oil inlet channel, the other end of the piston piece is connected with an ejector rod, a piston spring is arranged between the piston piece and the valve body, the control assembly is clamped to the control cavity through an adapter, and the control cavity communicates with the air inlet channel through the adapter. The utility model mainly aims to add an air inlet channel structure on the basis of an original valve, enable the directions of an oil inlet channel and an air inlet channel to be the same, change the direction of a traditional external air pump pipe, reduce the radial space required by a clutch booster for installing an air pipe, improve the utilization rate of the space in a vehicle, and provide support for the lightweight and compact design of a vehicle body.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch boosters, in particular to a space-saving clutch booster. Background Art

[0002] A clutch booster is a device that uses gas assistance to achieve clutch separation and engagement. It is commonly used in clutch control systems in the commercial vehicle industry. A clutch booster is usually equipped with an oil inlet passage connected to the hydraulic system and an air inlet passage connected to the cylinder. The oil inlet passage and the air inlet passage of a traditional clutch booster are oriented in different directions. This also requires that when installing a clutch booster, a larger space needs to be reserved for external hydraulic pipes and air pump pipes, resulting in a certain amount of space waste. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a space-saving clutch booster, including a valve body, an end cover, a piston part, a piston spring, a push rod, a control assembly and an adapter, the valve body is connected to the end cover, the valve body is provided with an oil inlet and an air inlet facing the same direction, and a control chamber and an air pressure chamber connected to each other, the air pressure chamber is slidably connected to the piston part, one end of the piston part is connected to the oil inlet, and the other end is connected to the push rod, a piston spring is provided between the piston part and the valve body, the control assembly is clamped in the control chamber through the adapter, and the control chamber is connected to the air inlet through the adapter.

[0004] By adopting the above technical solution, the valve body is cast in one piece. By adding an intake duct structure on the basis of the original valve and making the oil inlet duct and the intake duct in the same direction, the direction of the traditional external air pump pipe is changed, the radial space required for the clutch booster to install the air pipe is reduced, and the space utilization rate in the vehicle is improved.

[0005] The utility model is further configured such that the adapter is provided with an adapter interface and a connecting pipe that are connected to each other, and mounting holes are provided on both sides of the adapter interface. The adapter interface and the connecting pipe are respectively sealed and connected to the control chamber and the air inlet duct. The valve body is provided with threaded holes corresponding to the mounting holes. The adapter is connected to the valve body through the threaded holes. During installation, the adapter interface and the connecting pipe are respectively aligned with the control chamber and the air inlet duct, and the adapter is detachably connected to the valve by screws. When the control component needs to be repaired, it can be maintained by simply opening the adapter without removing the air pump pipe, thereby ensuring the sealing of the air inlet duct and the air pump pipe and improving the maintenance efficiency.

[0006] The utility model is further configured as follows: the control component includes a valve sleeve, a spring seat, a valve frame, a secondary spring, a main spring and a plunger; the valve sleeve and the spring seat are fixedly connected to the control chamber through an adapter; the valve frame is slidably connected between the valve sleeve and the spring seat, and a secondary spring is provided between the valve frame and the spring seat; a plunger corresponding to the valve frame is slidably connected in the control chamber; the main spring is provided between the valve sleeve and the plunger; the valve sleeve is provided with a through hole between the plunger and the valve frame; the plunger is respectively clamped between the positioning portion and the main spring through a step portion; the plunger is pushed to move in the direction of the valve frame by the hydraulic pressure of the liquid inlet channel; the air inlet channel and the air pressure chamber are connected or disconnected by the valve frame; the overall structure is simple and easy to install.

[0007] The utility model is further configured such that the valve body is provided with a positioning portion in the control cavity, the plunger is provided with a step portion corresponding to the positioning portion and the plunger is provided with an exhaust groove, the valve body is provided with an exhaust passage connected to the exhaust groove, and when the plunger is reset, the air pressure in the control cavity is discharged through the exhaust passage, thereby balancing the air pressure in the control cavity and maintaining the stability of the structure.

[0008] The utility model is further configured such that the adapter is provided with a connecting groove for installing a spring seat, the spring seat is clamped between the valve sleeve and the adapter through the connecting groove, and a sealing ring is provided at the connection between the valve sleeve / adapter and the spring seat, the valve sleeve and the spring seat are fixedly connected in the control cavity through the adapter, and the sealing effect is improved by the sealing ring to avoid air leakage.

[0009] The utility model is further configured such that the spring seat is provided with a connecting column and positioning strips circumferentially distributed around the connecting column, the valve skeleton is slidably connected to the connecting column, the auxiliary spring is arranged between the positioning strip and the valve skeleton, and when the valve skeleton is opened, the airflow bypasses the connecting column and flows into the valve sleeve from the gap between the adjacent positioning strips of the spring seat.

[0010] The utility model is further configured such that the valve sleeve is provided with a protrusion at the mounting hole, and a valve rubber pad is provided on the side of the valve frame facing the protrusion. When the valve frame is closed, the valve frame abuts against the protrusion through the valve rubber pad, thereby improving the air tightness between the valve frame and the valve sleeve; when the valve frame is opened, the plunger abuts against the valve frame through the valve rubber pad, thereby improving the air tightness between the plunger and the valve frame.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By adding an intake duct structure to the original valve and making the oil inlet duct and the intake duct face the same direction, the direction of the traditional external air pump pipe is changed, the radial space required for installing the clutch booster air pipe is reduced, the space utilization rate in the vehicle is improved, and support is provided for the lightweight and compact design of the vehicle body.

[0013] 2. When the control component needs to be repaired, you only need to open the adapter for maintenance without removing the air pump pipe, which ensures the sealing of the intake duct and the air pump pipe and improves maintenance efficiency.

[0014] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view of the utility model;

[0016] Figure 2 For the utility model Figure 1 Sectional view of the A direction view;

[0017] Figure 3 For the utility model Figure 1 Sectional view of the B direction view;

[0018] Figure 4 For the utility model Figure 2 A partial enlarged view of the C-direction view;

[0019] Figure 5 It is a three-dimensional diagram of the adapter of the utility model;

[0020] Figure 6 A three-dimensional diagram of the spring seat of the utility model;

[0021] Among them: 1-valve body, 2-end cover, 3-piston, 4-piston spring, 5-rod, 6-control assembly, 7-adapter, 8-sealing ring, 61-valve sleeve, 611-through hole, 612-protrusion, 62-spring seat, 621-connecting column, 622-positioning strip, 63-valve frame, 64-auxiliary spring, 65-main spring, 66-plunger, 661-step, 662-exhaust groove, 67-valve rubber pad, 71-adapter, 72-connecting pipe, 73-mounting hole, 74-connecting groove, 100-oil inlet, 101-inlet, 102-control chamber, 103-air pressure chamber, 104-threaded hole, 105-positioning part, 106-exhaust; DETAILED DESCRIPTION

[0022] like Figure 1-3As shown, this embodiment provides a space-saving clutch booster, including a valve body 1, an end cover 2, a piston member 3, a piston spring 4, a push rod 5, a control assembly 6 and an adapter 7. The valve body 1 is connected to the end cover 2 by bolts, and the valve body 1 is provided with an oil inlet 100 and an air inlet 101 facing the same direction, as well as a control chamber 102 and an air pressure chamber 103 connected to each other. The air pressure chamber 103 is slidably connected to the piston member 3, and one end of the piston member 3 is connected to the oil inlet 100, and the other end is clamped with the push rod 5. A piston spring 4 is provided between the piston member 3 and the valve body 1, and the control assembly 6 is clamped to the control chamber 102 through the adapter 7, and the control chamber 102 is connected to the air inlet 101 through the adapter 7.

[0023] Combination Figure 4 , 5 As shown, in this embodiment, the adapter 7 is provided with an adapter port 71 and a connecting pipe 72 which are connected to each other, and mounting holes 73 are provided on both sides of the adapter port 71. The adapter port 71 and the connecting pipe 72 are sealed and connected to the control chamber 102 and the air inlet duct 101 respectively. The valve body 1 is provided with a threaded hole 104 corresponding to the mounting hole 73. The adapter 7 is connected to the valve body 1 through the threaded hole 104.

[0024] Combination Figure 4 As shown, in this embodiment, the control component 6 includes a valve sleeve 61, a spring seat 62, a valve frame 63, a secondary spring 64, a main spring 65 and a plunger 66. The valve sleeve 61 and the spring seat 62 are fixedly connected to the control chamber 102 through a adapter 7. The valve frame 63 is slidably connected between the valve sleeve 61 and the spring seat 62, and a secondary spring 64 is provided between the valve frame 63 and the spring seat 62. A plunger 66 corresponding to the valve frame 63 is slidably connected in the control chamber 102, the main spring 65 is provided between the valve sleeve 61 and the plunger 66, and the valve sleeve 61 is provided with a through hole 611 between the plunger 66 and the valve frame 63.

[0025] Combination Figure 4 , 6As shown, in this embodiment, the valve body 1 is provided with a positioning portion 105 in the control chamber 102, the plunger 66 is provided with a step portion 661 corresponding to the positioning portion 105, and the plunger 66 is provided with an exhaust groove 662, the valve body 1 is provided with an exhaust passage 106 connected with the exhaust groove 662, the adapter 7 is provided with a connecting groove 74 for installing the spring seat 62, the spring seat 62 is clamped between the valve sleeve 61 and the adapter 7 through the connecting groove 74, and a sealing ring 8 is provided at the connection between the valve sleeve 61 / adapter 7 and the spring seat 62, the spring seat 62 is provided with a connecting column 621, and a positioning strip 622 circumferentially distributed around the connecting column 621, the valve skeleton 63 is slidably connected to the connecting column 621, the auxiliary spring 64 is provided between the positioning strip 622 and the valve skeleton 63, the valve sleeve 61 is provided with a protrusion 612 at the mounting hole 73, and the valve skeleton 63 is provided with a valve rubber pad 67 on the side facing the protrusion 612.

[0026] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A space-saving clutch booster, characterized in that: The invention comprises a valve body (1), an end cover (2), a piston member (3), a piston spring (4), a push rod (5), a control assembly (6) and an adapter (7); the valve body (1) is fixedly connected to the end cover (2); the valve body (1) is provided with an oil inlet passage (100) and an air inlet passage (101) facing the same direction, and a control chamber (102) and an air pressure chamber (103) which are connected; the air pressure chamber (103) is slidably connected to the piston member (3); one end of the piston member (3) is connected to the oil inlet passage (100) and the other end is connected to the push rod (5); a piston spring (4) is provided between the piston member (3) and the valve body (1); the control assembly (6) is clamped to the control chamber (102) through the adapter (7); and the control chamber (102) is connected to the air inlet passage (101) through the adapter (7).

2. A space-saving clutch booster according to claim 1, characterized in that: The adapter (7) is provided with an adapter port (71) and a connecting pipe (72) which are connected to each other, and mounting holes (73) provided on both sides of the adapter port (71); the adapter port (71) and the connecting pipe (72) are respectively sealed and connected to the control chamber (102) and the air inlet passage (101); the valve body (1) is provided with a threaded hole (104) corresponding to the mounting hole (73); and the adapter (7) is connected to the valve body (1) via the threaded hole (104).

3. A space-saving clutch booster according to claim 2, characterized in that: The control assembly (6) comprises a valve sleeve (61), a spring seat (62), a valve frame (63), an auxiliary spring (64), a main spring (65) and a plunger (66); the valve sleeve (61) and the spring seat (62) are fixedly connected to the control chamber (102) via an adapter (7); the valve frame (63) is slidably connected between the valve sleeve (61) and the spring seat (62); an auxiliary spring (64) is provided between the valve frame (63) and the spring seat (62); a plunger (66) corresponding to the valve frame (63) is slidably connected in the control chamber (102); the main spring (65) is provided between the valve sleeve (61) and the plunger (66); and the valve sleeve (61) is provided with a through hole (611) between the plunger (66) and the valve frame (63).

4. A space-saving clutch booster according to claim 3, characterized in that: The valve body (1) is provided with a positioning portion (105) in the control chamber (102), the plunger (66) is provided with a step portion (661) corresponding to the positioning portion (105), and the plunger (66) is provided with an exhaust groove (662), and the valve body (1) is provided with an exhaust passage (106) connected to the exhaust groove (662).

5. A space-saving clutch booster according to claim 3, characterized in that: The adapter (7) is provided with a connecting groove (74) for installing the spring seat (62); the spring seat (62) is clamped between the valve sleeve (61) and the adapter (7) through the connecting groove (74); and a sealing ring (8) is provided at the connection between the valve sleeve (61) / the adapter (7) and the spring seat (62).

6. A space-saving clutch booster according to claim 5, characterized in that: The spring seat (62) is provided with a connecting column (621) and positioning strips (622) circumferentially distributed around the connecting column (621); the valve frame (63) is slidably connected to the connecting column (621); and the auxiliary spring (64) is provided between the positioning strips (622) and the valve frame (63).

7. A space-saving clutch booster according to claim 6, characterized in that: The valve sleeve (61) is provided with a protruding portion (612) at the mounting hole (73), and a valve rubber pad (67) is provided on the side of the valve frame (63) facing the protruding portion (612).

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