| 摘要 |
An extension device for a socket member may include a ratchet member, a first U-joint member connecting the ratchet member and the socket member, a first sleeve member for connecting the ratchet member and the socket member to inhibit the operation of the first U-joint member. The sleeve member may include a threaded connection to the ratchet member, and the U-joint member may include a first ball and socket member. The U-joint member may include a first central shaft member, and the first central shaft member may radially rotate on a first traverse shaft member. The traverse shaft member may be connected to a first pair of arms, and the first arms may be connected to the socket member. The extension device may include a second U-joint member, and the extension device may include a second sleeve member to inhibit the operation of the second U-joint member. The second sleeve member may include a threaded connection, and the second U-joint member may include a second ball and socket member.
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