CN2155285Y

CN2155285Y - Pocket drilling and grinding machine

Info

Publication number: CN2155285Y
Application number: CN 93214985
Authority: CN
Inventors: 陈鑫
Original assignee: 付国胜
Priority date: 1993-06-07
Filing date: 1993-06-07
Publication date: 1994-02-09
Anticipated expiration: 2003-06-07

Abstract

The utility model relates to a pocket holes drilling and grinding machine, particularly a pocket drilling and grinding machine used for the dentistry in hospitals and repair of electric appliances. The pocket drilling and grinding machine is composed of a micromotor, a drill rod, a drill head and a coupling. The pocket drilling and grinding machine is characterized in that a driving shaft of the micromotor and the drill rod are connected by one coupling. The coupling is composed of a component 5 and a component 6, and the component 5 and the component 6 are connected and inserted mutually. The pocket drilling and grinding machine has the advantages of simple structure, small size, low cost, convenient carry and operation.

Description

Pocket drilling and grinding machine

This utility model relates to a kind of mini-drill, milling tools, especially a kind of pocket brill grinding machine that is used for hospital's dentistry and electrical maintenance.

At present, people design a kind of miniature electric drill, and it is made up of micro machine, drilling rod, drill bit and gear drive, because it is provided with gear drive, so its defective is that volume is bigger than normal, and structure is complicated, and cost is higher.

The purpose of this utility model is, a kind of gear drive, simple in structure, volume is little, cost is low pocket brill grinding machine of having omitted is provided.

In order to achieve the above object, the solution that this utility model is taked is: it is made up of micro machine, drilling rod, drill bit and shell, connect with a shaft coupling between the power transmission shaft of micro machine and the drilling rod, above-mentioned shaft coupling is made up of two parts, these two parts are to snap in connection mutually, and above-mentioned two parts can be installed and used by reversing of position.When micro machine energising was rotated, its power transmission shaft will drive drilling rod and rotates with the joining drill bit of drilling rod by above-mentioned shaft coupling, holed, work such as polishing.

Below in conjunction with accompanying drawing this utility model is further described.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a coupler structure sketch map of the present utility model shown in Figure 1.

In structural representation of the present utility model shown in Figure 1, this utility model is by micro machine 1, drilling rod 2, drill bit 3 and shell 4 are formed, connect with a shaft coupling between power transmission shaft 7 on the micro machine 1 and the drilling rod 2, this shaft coupling is by

parts

5,6 form,

parts

5,6 profiles are cylindricality, especially cylindrical, one end of

parts

5 and 2 fastening connections of drilling rod, be provided with a boss with parts 6 joining end faces, above-mentioned boss is an in-line, also can be cross, 7 fastening connections of power transmission shaft on one end of parts 6 and the micro machine 1 are provided with the groove that an energy and the boss on the parts 5 snap in connection (snap in and cooperate) mutually with parts 5 joining end faces, and the profile of this groove and size and above-mentioned boss adapt, can be in-line, also can be cross.Parts 5 can be installed and used by reversing of position with parts 6, i.e. an end of

parts

6 and 2 fastening connections of drilling rod, and the other end snaps in parts 5 and connects, and 7 fastening connections of power transmission shaft on parts 5 one ends and the micro machine 1, the other end snaps in parts 6 and connects.Above-mentioned fastening connection can be pin connection, thread connection etc., by those skilled in the art is known, no longer describes in detail herein.

In coupler structure sketch map of the present utility model shown in Figure 2, the profile of

parts

5,6 is cylindrical, and the boss on parts 5 end faces is an in-line, and the groove on parts 6 end faces also is an in-line, boss on its overall dimensions and parts 5 end faces adapts, and both can snap in connection.When micro machine 1 energized, its power transmission shaft 7 can drive drilling rod 2 and joining with it drill bit and rotate by

parts

5,6 shaft couplings of being formed that snap in connection, reaches the purpose of boring and polishing with this.

The utility model compared with prior art has the advantage that volume is little, simple in structure, cost is low, carries, uses very convenient.

Claims

1, a kind of pocket brill grinding machine, form by micro machine [1], drilling rod [2], drill bit [3] and shell [4], it is characterized in that, connect with a shaft coupling between power transmission shaft [7] on the micro machine [1] and the drilling rod [2], above-mentioned shaft coupling is made up of parts [5] and parts [6], and parts [5] snap in mutually with parts [6] and connect.

2, pocket brill grinding machine according to claim 1, it is characterized in that, parts ［ 5 ］ are cylindricality, one end and fastening connection of drilling rod ［ 2 ］, be provided with a boss with the joining end face of parts ［ 6 ］, this boss is an in-line, also can be cross, parts ［ 6 ］ are cylindricality, fastening connection of power transmission shaft ［ 7 ］ on one end and the micro machine ［ 1 ］, be provided with an energy with the joining end face of parts ［ 5 ］ and snap in the groove that connects with boss on the parts ［ 5 ］, this groove is an in-line, also can be cross.

3, pocket brill grinding machine according to claim 2 is characterized in that, forms the parts ［ 5 ］ of shaft coupling and can install by reversing of position with parts ［ 6 ］.