Little kingpin device of adjustable skin with synchronous function of dosing of spraying

The utility model discloses a little kingpin device of adjustable skin with synchronous function of dosing of spraying, skin kingpin device includes: support, support include fixing base, pivot and rotary joint, and the pivot includes link and free end, and the link is connected with the fixing base, rotary joint's one end rotatably is connected with the fixing base, rotary joint's the other end and free end are connected, handle, handle set up on the fixing base, a kingpin section of thick bamboo, a kingpin section of thick bamboo include cylinder and a plurality of syringe needle, and outside roller cover located the pivot, a plurality of syringe needles set up on the cylinder and can realize adjusting the function that exposes syringe needle length, protection casing, protection casingset up on the support, and the protection casing is connected with injection apparatus, can spray the medicine to the kingpin operating area. The utility model provides a little kingpin device of adjustable skin with synchron