Buccal tube
The utility model relates to a buccal tube. Wherein the convex block is fixedly connected to the bottom plate and provided with a first through hole, the traction hook is arranged on the convex block,a section of mounting pipe is fixedly connected to the convex block, one end of the traction hook ex...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model relates to a buccal tube. Wherein the convex block is fixedly connected to the bottom plate and provided with a first through hole, the traction hook is arranged on the convex block,a section of mounting pipe is fixedly connected to the convex block, one end of the traction hook extends into the mounting pipe and is fixedly connected with a positioning plate, and the positioningplate can slide in the axial direction of the mounting pipe and can also rotate around the axis of the mounting pipe; a fixing plate for locking the positioning plate in the mounting pipe is arrangedat one end, far away from the convex block, of the mounting pipe; a plurality of clamping grooves are formed in the side face, facing the positioning plate, of the fixing plate in the circumferentialdirection, and a plurality of clamping blocks used for being embedded into the clamping grooves are arranged on the positioning plate. And a spring used for driving the clamping block to be embeddedinto the clamping groove is f |
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