Electric slide rail

An electric slide rail, comprising a first motor driving device, a first slide rail assembly, a second slide rail assembly both of which are symmetrically arranged to each other and have a same structure, and a first clutch, wherein:

• the first slide rail assembly comprises a first slide rail and a first fixed rail, wherein the first slide rail is slidably sleeved within the first fixed rail, a first rack housing is sleeved on an outer side of the first fixed rail, a first rack is provided on the first rack housing, a first gear engaged with the first rack is mounted on the first slide rail;
• the first clutch is arranged at a side where an output shaft of a first motor of the first motor driving device is provided, and is connected with the first slide rail through a first linkage structure;
• the first motor driving device, which is installed on the first slide rail through a first fixing device, comprises a first encoder for measuring motor or gear angular displacement;
• the first fixing device comprises a first supporting protective cover and a first mounting bracket, wherein the first motor driving device and the first clutch are installed within the first supporting protective cover, the first supporting protective cover is fixed to the first slide rail through the first mounting bracket;
• a first support bracket is provided within the first supporting protective cover;
• the first clutch and the first motor are installed at two sides of the first support bracket, respectively;
• the first supporting protective cover has two support holes at a left end and a right end thereof, respectively;
• the first linkage structure comprises a first driving gear, wherein the first driving gear is engaged with a second gear, a left end of the first driving gear is installed on the first clutch, a right end of the first driving gear is rotatably inserted into one of the two support holes which is provided at the right end of the first supporting protective cover;
• a connecting rod is provided between the first gear and the second gear, a third gear is sleeved on the connecting rod, the third gear is engaged with a first driven gear, a right end of the first driven gear is mounted on the first encoder, a left end of the first driven gear is rotatably inserted into another of the two support holes which is provided at the left end of the supporting protective cover;
• a first support frame is provided within the first supporting protective cover, the first encoder is installed within the first supporting protective cover through the first support frame.