Trailer control valve
A technology for controlling valves and pistons, which is applied in the direction of control valves and air release valves, brakes, brake components, etc., and can solve problems such as inconvenient operation and complex structure
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Embodiment 1
[0035] refer to figure 1 . The trailer control valve 50 of the present invention utilizes a valve body 51 which is a cavity inside to form a complete trailer control valve 50 after being packed into relevant matching parts 52-75. The valve body 51 is in the shape of a long cylinder with a smooth cavity inside. Opening at the bottom; after installing the matching parts, it has the first chamber A, the second chamber B, the third chamber C, the fourth chamber D, the fifth chamber E, the sixth chamber F, and the seventh chamber G, the eighth chamber H and the first channel 100, the second channel 101, the third channel 102, the fourth channel 103, the fifth channel 104, the sixth channel 105, the seventh channel 106, the eighth channel 107, the ninth channel Channel 108, tenth channel 109, eleventh channel 110, twelfth channel 111; there are first ventilation interface 11, second ventilation interface 21, third ventilation interface 22, fourth ventilation interface 3, fifth vent...
Embodiment 2
[0059] refer to figure 2 As shown, the buffer rubber pad 56 is a raised annular pad on the top. There is a groove on the second control piston 55, and the buffer rubber pad 56 is placed in the groove. After the second control piston 55 and the first control piston 53 are assembled with the fifth O-ring 57, the sixth O-ring 58 and the buffer pad 56, they are limited on the upper part of the valve body 51 by the spring 59, ensuring the fifth The chamber E, the sixth chamber F, the eighth chamber H, and the third chamber C are relatively independent, and form the cushion pad elastic valve port 56a, the cushion pad contact surface 51a and the exhaust valve port 55a.
[0060] The other components, the structure of each component, the positional relationship between the components, the material of the components, and the working principle of the components are all the same as those in the first embodiment.
Embodiment 3
[0062] refer to image 3 As shown, the buffer rubber pad 56 is a raised annular pad on the top. The buffer rubber pad 56 is placed in the eighth chamber H, and snapped into a corner of the upper part of the valve body 51 . After the second control piston 55 and the first control piston 53 are assembled with the fifth O-ring 57, the sixth O-ring 58 and the buffer pad 56, they are limited on the upper part of the valve body 51 by the spring 59, ensuring the fifth The chamber E, the sixth chamber F, the eighth chamber H, and the third chamber C are relatively independent, and form the cushion pad elastic valve port 56a, the cushion pad contact surface 51a and the exhaust valve port 55a.
[0063] The other components, the structure of each component, the positional relationship between the components, the material of the components, and the working principle of the components are all the same as those in the first embodiment.
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