CN2587371Y

CN2587371Y - Miniature elbow shape screwdriver

Info

Publication number: CN2587371Y
Application number: CN 02259048
Authority: CN
Inventors: 刘宝林; 陈小文
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-10
Filing date: 2002-12-10
Publication date: 2003-11-26
Anticipated expiration: 2012-12-10

Abstract

The utility model relates to a miniature corner screwdriver used in a planting hand in dentistry. The utility model is characterized in that the utility model is composed of a screwdriver arm, a rotating wheel of the screwdriver arm, an outer casing of the screwdriver arm, a turning head of a screwdriver, a shaft sleeve of a built-in shaft sleeve of the turning head, a built-in hollow straight-tooth shaft of the turning head and a screwdriver head. With a manual spinning wheel, the utility model obtains the goal that screws are screwed by that hands do not need enter an oral cavity. The utility model is used for the goal of the utility model, and can also be applied to work occasions with small operating space or operation needing angle turn; the size of the utility model can be adjusted; the angle of the turning head can be set freely.

Description

Miniature turning screwdriver

Technical field

This utility model belongs to stomatology surgical operating instrument technical field, relates to the miniature turning screwdriver that uses in a kind of Dental Implant operation.

Background technology

Along with the continuous development of stomatology technology, the use of new technique and new material makes and adopts after the human body agomphosis technology of artificial tooth root plantation to obtain extensive use, has obtained very satisfied medical science radical cure effect.Present technique is the special-purpose assorted instrument that designs for the Dental Implant surgical operation.In the prior art before this utility model, the applicant's patented technology " is attacked implantation body of stricture of vagina type tooth section from body ", and (patent No. 932160514), " high strength self-taped type tooth implant " (patent No. 952452812) all have excellent biological compatibility and mechanical strength, all are Dental Implant to be implanted device in the alveolar bone by surgical operation.But because intraoral environment is narrow and small, in the operation process of implementing the artificial tooth root plantation, operation technique is very inconvenient, and when the district of especially grinding one's teeth in sleep at the rear portion, oral cavity screwed in small screw, operation is difficulty more, makes that operating time prolongs, downgrade.

Summary of the invention

In order to overcome the difficulty in the above-mentioned canine implant operation process, the purpose of this utility model is to provide a kind of miniature turning screwdriver that does not need staff to enter the oral cavity operation, makes operation technique not only convenient and swift, and accurately puts in place.

Now this utility model technical solution is described below:

This utility model by screw tool arm 1, tool arm swiveling wheel 2, tool arm shell body 3, screwdriver turn 4, turn a built-in steady pin axle sleeve 5, turn a built-in hollow straight-tooth axle 6, driver bit 7 constitutes; The front end of screw tool arm 1 has a boss body 8, is the interior umbrella profile of tooth of processing on its termination, and the number of teeth can be 6～12; The rear end of screw tool arm 1 is fixedly mounted on the tool arm swiveling wheel 2; Tool arm shell body 3 is sleeved on the screw tool arm 1, and its front end cylindrical is provided with external screw thread 10; Screwdriver turns 4 for rectangular-shaped, the one head is a cylindrical shape, in be provided with female thread 11, can spin with the external screw thread 10 that tool arm shell body 3 front end cylindricals are provided with, its other end is a semi-cylindrical shells, the housing lower end has circular hole 12, and be provided with draw-in groove 13, card 14 on the draw-in groove can block driver bit 7 than the cannelure on the major diameter circular shaft 15, the housing upper end is installed with turns a built-in steady pin axle sleeve 5, can with turn a cylindrical socket of built-in hollow straight-tooth axle 6 upper ends, with the internal diameter of this cylindrical relevant position on be provided with a cubic hole; Turn a built-in hollow straight-tooth axle 6 in down cylindrical be provided with gear 12, can carry out the interlock transmissions with the interior umbrella tooth 9 of screw tool arm 1 front end; Driver bit 7 epimeres are square, the stage casing is the less circular shaft of diameter, hypomere is the big circular shaft of diameter, which is provided with cannelure 15, the less circular shaft of the square of driver bit 7 epimeres and stage casing can just in time penetrate and turn in the built-in hollow straight-tooth axle 6, and the cubic hole on its internal diameter just and the square socket of driver bit 7 epimeres.

Description of drawings

Fig. 1: this utility model overall appearance sketch map

Fig. 2: screwdriver turns head and screwdriver arm configuration partial sectional view

Fig. 3: screw tool arm leading portion cross-sectional schematic

Fig. 4: screw tool arm boss A-A is to sketch map

The B-B of Fig. 5: Fig. 4 is to sketch map

Wherein: (1) screw tool arm (2) tool arm swiveling wheel (3) tool arm shell body (4) screwdriver turns head (5) and turns a built-in steady pin axle sleeve (6) and turn interior the umbrella tooth of built-in hollow straight-tooth axle (7) driver bit (8) boss body (9) (10) external screw thread (11) female thread (a 12) tooth by (13) draw-in groove (14) card (15) cannelure

The specific embodiment

In carrying out the tooth implant operation, when needing to use screw fixings, the tool arm shell body 3 of the miniature turning of this utility model screwdriver and screwdriver are turned 4 to spin, with the boss on driver bit 7 bottom end faces and the groove on the Dental Implant fixed screw to good, manual tool arm swiveling wheel 2, make the interior umbrella tooth 9 of screw tool arm 1 termination rotate, and a built-in hollow straight-tooth axle 6 that turns of drive and its interlock rotates, turn a built-in hollow straight-tooth axle 6 and drive its rotation, thereby reach the purpose that screws screw without hands enters the oral cavity by the square head of upper end internal square hole and driver bit 7 tops is fixedly sleeved.

This utility model can also be applied to the narrow and small or action need in any working place and turn in the workplace of certain angle except that being used for the object of the invention, and its size is changeable, and turning brilliance degree can be provided with arbitrarily.

Claims

1, a kind of miniature turning screwdriver has the screw tool arm, it is characterized in that: by screw tool arm, tool arm swiveling wheel, tool arm shell body, screwdriver turn head, turn a built-in steady pin axle sleeve, turn a built-in hollow straight-tooth axle, driver bit constitutes; The front end of screw tool arm has a boss body, the interior umbrella profile of tooth for processing on its termination; The rear end of screw tool arm is fixedly mounted on the tool arm swiveling wheel; The tool arm shell body is sleeved on the screw tool arm, and its front end cylindrical is provided with external screw thread; Screwdriver turns head for rectangular-shaped, and one head and tool arm shell body spin, and the other end is a semi-cylindrical shells, and the upper end is installed with and turns a built-in steady pin axle sleeve in the housing, with a cylindrical socket of turning on the built-in hollow straight-tooth axle; The middle hypomere cylindrical that turns a built-in hollow straight-tooth axle is provided with gear, carries out the interlock transmission with the interior umbrella tooth of screw tool arm front end; Driver bit penetrates and turns in the built-in hollow straight-tooth axle the cubic hole on its internal diameter and the cubic socket of driver bit epimere.

2, miniature turning according to claim 1 screwdriver, it is characterized in that: the interior umbrella number of teeth on the screw tool arm front end boss body termination is 6～12.

3, miniature turning according to claim 1 screwdriver, it is characterized in that: screwdriver turns head for rectangular-shaped, the one head is a cylindrical shape, in be provided with female thread, its other end is a semi-cylindrical shells, and the housing lower end has circular hole, and is provided with draw-in groove, card on the draw-in groove blocks driver bit than the cannelure on the major diameter circular shaft, with the internal diameter of the cylindrical relevant position of turning built-in hollow straight-tooth axle upper end on be provided with a cubic hole.

4, miniature turning according to claim 1 screwdriver, it is characterized in that: the driver bit epimere is a square, the stage casing is the less circular shaft of diameter, hypomere is the big circular shaft of diameter, which is provided with cannelure, the less circular shaft in the square of driver bit epimere and stage casing penetrates and turns in the built-in hollow straight-tooth axle, and the cubic hole on its internal diameter just and the square socket of driver bit epimere.