CN204603393U - A kind of drill bit depth stop with anchor ear - Google Patents

Abstract

A kind of drill bit depth stop with anchor ear, be made up of drill bit, metal tube upper end, metal tube lower end distinguish, anchor ear, lock screw, the metal tube having one section of diameter more bigger than drill bit top is overlapped on the top of drill bit, metal tube lower end is metal tube lower end distinguish, anchor ear with lock screw is contained on the distinguish of metal tube lower end, just can be pressed on drill bit by metal tube lower end distinguish by regulating lock screw; Have employed scheme of the present utility model, customer service drill bit depth stop is when impulsive force is too large, and screw easily skids, affect the shortcoming of depth stop effect, is particularly suitable for electric hand drill, percussion drill restriction drilling depth, with low cost, simple installation.

Description

A kind of drill bit depth stop with anchor ear

Technical field

The utility model relates to a kind of drill bit depth stop, especially uses a kind of metal catheter to lead and is contained in depth stop percussion drill, electric hand drill realizing drilling depth restriction with anchor ear and lock screw.

Background technology

At present, we are when using electric hand drill and percussion drill punching, owing to being unable to estimate, for position, hole, not that it is exactly dozen shallow for beating dark, dark be sometimes afraid of ceiling to drill, shallow and put to enter setscrew, use electric hand drill or percussion drill still to compare to be difficult to and hold drilling depth, restricted drilling depth on part bench drill, but this structure is comparatively complicated, that restriction drill bit is to down stroke, this is just bad realization on percussion drill or electric hand drill, the application number applied on April 22nd, 2015 is in person " a kind of drill bit depth stop " of 201520244483.X, although solve this problem very well, but in actual applications, particularly with percussion drill, impulsive force is too large sometimes, screw easily skids, affect depth stop effect.

Utility model content

In order to the application number overcoming my application is that impulsive force is too large sometimes for " a kind of drill bit depth stop " of 201520244483.X, screw easily skids, affect the shortcoming of depth stop effect, the utility model proposes a kind of drill bit depth stop with anchor ear with head it off, its good effect is: have employed a kind of drill bit depth stop with anchor ear, drill bit depth stop better effects if can be made, the situation after the metal tube that there will not be impulsive force large just slides to, considerably increase the reliability of restriction drilling depth.

The utility model solves the technical scheme that its technical problem adopts: a kind of drill bit depth stop with anchor ear of the present utility model, be made up of drill bit, metal tube upper end, metal tube lower end distinguish, anchor ear, lock screw, the metal tube having one section of diameter more bigger than drill bit top is overlapped on the top of drill bit, metal tube lower end is metal tube lower end distinguish, anchor ear with lock screw is contained on the distinguish of metal tube lower end, just metal tube can be pressed on drill bit by regulating lock screw.

The technical solution adopted in the utility model will coordinate accompanying drawing to elaborate in a particular embodiment.

Accompanying drawing explanation

Here is brief description of drawings.

Fig. 1 is a kind of drill bit depth stop structural representation with anchor ear of the present utility model.

1. drill bits in figure, 2. metal tube upper end, 3. metal tube lower end distinguish, 4. anchor ear, 5. lock screw.

Detailed description of the invention

In the embodiment in figure 1, we further illustrate the utility model to implement a kind of drill bit depth stop with anchor ear:

Fig. 1 is a kind of drill bit depth stop schematic diagram with anchor ear of the present utility model, in order to seem more three-dimensional, comprise this line hidden of part in figure also to have drawn, in figure, drill bit 1 is exactly common percussion drill, the drill bit of electric hand drill, and metal tube is divided into lower end, upper end, its upper and lower side structure is different, metal tube upper end 2 is cylindrical shape, is exactly steel pipe or other tubing of one section of certain length, and in it, empty diameter is more bigger than the diameter (chisel edge) of drill bit 1, and having certain wall thickness, wall thickness several millimeters is advisable; Metal tube lower end distinguish 3 is just enough by being usually divided into pintongs, and every lobe adopts the steel of good springiness to make, and its Thickness Ratio metal tube upper end 2 is little, just has good elasticity; Anchor ear 4 is the beckets do not closed be enclosed within outside metal tube lower end distinguish 3, and have hole in the extension of becket, there is internal thread in one of them hole, can be locked with lock screw 5.

In use, by the top of metal pipe sleeve at drill bit 1, up-down adjustment position is to suitable, then with screwdriver, lock screw 5 is rotated, anchor ear 4 is tightened up, metal tube lower end distinguish 3 is pressed on drill bit 1 simultaneously, till being screwed into tightly, go to have holed with regard to this drill bit available, because there is certain thickness metal tube upper end 2, to a certain degree just can not go deep into again when drill bit 1 gets into, which achieves the effect of depth stop, comparatively large with drill bit 1 contact area owing to locking rear metal tube lower end distinguish 2, play the object of effective antiskid.

Claims (1)

1. the drill bit depth stop with anchor ear, be made up of drill bit (1), metal tube upper end (2), metal tube lower end distinguish (3), anchor ear (4), lock screw (5), it is characterized in that: overlap the metal tube having one section of diameter more bigger than drill bit top on the top of drill bit (1), metal tube lower end is metal tube lower end distinguish (3), and the anchor ear (4) with lock screw (5) is contained on metal tube lower end distinguish (3).