The orthopaedic drill that a kind of structure is improvedTechnical field
This utility model belongs to Medical orthopedic electric drill, the orthopaedic drill that especially a kind of structure is improved.
Background technology
At present, in orthopaedics fixing operation, need to hole on bone, and present rig is hand held electric drill.In use, entirely operate with sensation by doctor, the degree of depth for boring can not accurately be held, and causes the precision of boring low, and waste of manpower, and drilling time is long, thus extends whole operating time.In boring procedure, osseous tissue chip can splash, and is even splashed to it operation doctor, also makes troubles to debridement.
Summary of the invention
The orthopaedic drill that this utility model provides a kind of structure to improve, its objective is and carry out structure improvement to existing electric drill, thus solution accurately must not be held drilling depth and can not prevent the problem of splashing.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: the orthopaedic drill that a kind of structure is improved, comprise the electric drill of hand-held, the outfan of electric drill is provided with drill bit, it is characterized in that: drill bit is provided with limiting plate, limiting plate can be slid axially along drill bit by the drill guide bore on it, the side place of limiting plate is extended with linking arm downwards, screw rod pilot hole is provided with in linking arm, screw rod is provided with in screw rod pilot hole, screw rod and drill bit be arranged in parallel, limiting plate can slide along screw axial, linking arm is fixed on screw rod one end by the back tightening nut of its both sides, the other end of screw rod is fixedly connected with the shell of electric drill, the end face of the corresponding human body of limiting plate is provided with splash guard.
Further limit technique scheme, the end face of described limiting plate is provided with the open slot communicated with drill guide bore.Open slot is convenient to limiting plate Fast Installation on drill bit.
Further improve technique scheme, described splash guard comprises the taper cover body be made up of transparent soft plastic thin film, and the osculum end of taper cover body is provided with the iron plate of ring-type, and the big opening end of taper cover body is provided with the silica gel cushion of ring-type; The other end of limiting plate is provided with Magnet, and the iron plate end of splash guard is fixedly connected with limiting plate by Magnet.The advantage that this splash guard has that structure is simple, Fast Installation, the suitability are high.
Beneficial effect: the 1. limiting plate on drill bit carries out position adjustments by screw rod and back tightening nut, thus control drill bit gos deep into the degree of depth in bone, solves the problem accurately can not holding drilling depth; 2. screw rod and back tightening nut have that structure is simple, quick adjustment limiting plate position and the high advantage of precision; 3. limiting plate is provided with splash guard, the problem that solution must not prevent osseous tissue from splashing; 4. need one end of screw rod be fixed on existing electric drill, just complete the structure of modification to existing electric drill, thus avoid the problem of the wasting of resources; 5. this utility model has structure simply, easy to use, the advantage that work efficiency is high.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is the limiting plate top view in Fig. 1.
Detailed description of the invention
As depicted in figs. 1 and 2, the orthopaedic drill that a kind of structure is improved, comprise the electric drill 1 of hand-held, the outfan of electric drill 1 is provided with drill bit 2, drill bit 2 is provided with limiting plate 3, the center of limiting plate 3 is provided with drill guide bore, limiting plate 3 is provided with the open slot 4 communicated with drill guide bore, drill bit 2 is arranged in the drill guide bore on limiting plate 3, limiting plate 3 can slide axially along drill bit 2, the side place of limiting plate 3 is extended with linking arm 5 downwards, screw rod pilot hole is provided with in linking arm 5, screw rod 6 is provided with in screw rod pilot hole, screw rod 6 and drill bit 2 be arranged in parallel, limiting plate 3 can slide axially along screw rod 6, linking arm 5 is fixed on screw rod 6 one end by the back tightening nut 7 of its both sides, the other end of screw rod 6 is fixedly connected with electric drill 1, the end face of the corresponding human body of limiting plate 3 is provided with splash guard, and splash guard comprises the taper cover body 8 be made up of transparent soft plastic thin film, and the osculum end of taper cover body 8 is provided with the iron plate 9 of ring-type, and the big opening end of taper cover body 8 is provided with the silica gel cushion 10 of ring-type, the other end of limiting plate 3 is provided with Magnet 11, and the iron plate end of splash guard is fixedly connected with limiting plate 3 by Magnet 11.
Operation principle: first limiting plate is installed on drill bit, the linking arm on limiting plate is connected with screw rod by back tightening nut, temporarily not fastening nut, after the position of limiting plate on drill bit is determined, tightens back tightening nut; Again the iron plate end of splash guard is fixed on by Magnet on an end face of the corresponding human body of limiting plate; Finally by the silica gel cushion laminating human body on splash guard, and start electric drill and hole.