CN209579359U - A kind of screwdriver bit of anti-brute force attack - Google Patents

Abstract

The utility model discloses a kind of screwdriver bits of anti-brute force attack, it includes batch bar, described batch of bar both ends are equipped with the cutter head to link into an integrated entity with batch bar, the buffer bar uniformly inside contracted to axle center is equipped in the middle part of batch bar, the buffer bar interval is uniformly arranged the ball of several ball shape structures, the centre of sphere of the ball is equipped with resilient snubber, described batch of bar both ends are symmetrically arranged with two clamping grooves on the axis of buffer bar between several adjacent balls.The utility model can slow down the excessive bring impact of revolving speed, moreover, the cutter head of screwdriver bit and screw engaging section can be helped more compact, screwdriver bit be avoided to wander off.

Description

A kind of screwdriver bit of anti-brute force attack

Technical field

The utility model relates to a kind of screwdriver bits, more specifically to a kind of screwdriver bit of anti-brute force attack.

Background technique

Screwdriver bit is mostly to carry out rotation screw for accessing motor, can be to spiral shell and since the revolving speed of motor is excessive Silk screwdriver bit generates very big brute force attack, is easy to cause screwdriver bit or screw work engaging section damage, meanwhile, screwdriver bit exists When the turn of the screw, since revolving speed is excessive, it is also easy to appear the phenomenon that wanders off, this just will affect production efficiency and the quality of production.

Utility model content

The utility model overcomes the deficiencies in the prior art, provides a kind of screwdriver bit of anti-brute force attack, can subtract The slow excessive bring impact of revolving speed, moreover, the cutter head of screwdriver bit and screw engaging section can be helped more compact, avoids screw Screwdriver bit wanders off.

To achieve the goals above, the utility model uses following technical proposals:

A kind of screwdriver bit of anti-brute force attack, it includes batch bar, and described batch of bar both ends, which are equipped with, connects into one with batch bar The cutter head of body, batch bar middle part are equipped with the buffer bar uniformly inside contracted to axle center, and the buffer bar interval is uniformly arranged several The ball of a ball shape structure, the centre of sphere of the ball are set between several adjacent balls on the axis of buffer bar Flexible bolster, described batch of bar both ends are symmetrically arranged with two clamping grooves.

Preferably, the resilient snubber is spring.

Preferably, the length ratio between the buffer bar and batch bar is 1:2.

Preferably, the holding pearl of ball shape structure is equipped in the clamping groove, the holding pearl and clamping groove pass through casting It is into a single integrated structure.

Preferably, the cutter head is "-" type or cross, and the head side end face of the cutter head is equipped with threaded portion.

Compared with prior art, the utility model has the beneficial effects that

The utility model is by being arranged buffer bar in the middle part of batch bar, and several balls are arranged in interval on buffer bar, make It obtains in screwdriver bit rotation process, generates turnable elastic, meanwhile, the spherical shape of ball can slow down on the axis of buffer bar The vibration that screwdriver bit rotation generates, avoids screwdriver bit from wandering off, moreover, resilient snubber is arranged between adjacent ball, can slow down because Revolving speed and the impact generated, so that slow down the better effect of impact, to avoid causing screwdriver bit or screw to work engaging section damage It is bad, increase the service life of screwdriver bit.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the screwdriver bit of anti-brute force attack of the utility model.

Specific embodiment

The utility model is further described with reference to the accompanying drawings and detailed description:

With reference to Fig. 1, a kind of screwdriver bit of anti-brute force attack, it includes batch bar 1, and batch 1 both ends of bar are equipped with to be connected with batch bar 1 It is connected into integrated cutter head 6, multiple types can be selected in cutter head 6, and the cutter head 6 that this implementation uses is "-" type or cross, cutter head 6 Head side end face be equipped with threaded portion 7, increase friction dynamics, can more to step up in conjunction with cutter head 6 and screw work engaging section It gathers, so that the cutter head 6 of screwdriver bit is not easy to wander off in rotation.

In the present embodiment, because screwdriver bit during rotation, middle part for bear the maximum position of torsion, medium position It is easiest to fracture, so the buffer bar 2 uniformly inside contracted to axle center is equipped in the middle part of batch bar 1, between buffer bar 2 and batch bar 1 Length ratio be 1:2, torque can be increased well, 2 section of buffer bar is circle, if the interval of buffer bar 2 is uniformly arranged The ball 3 of dry ball shape structure, ball 3 and buffer bar 2 are integrally formed, and the section that the diameter of ball 3 is greater than buffer bar 2 is straight Diameter, structure is simple, and handsome in appearance, and the centre of sphere of ball 3 enables to screwdriver bit center of gravity uniform on the axis of buffer bar 2, Center of gravity is equipped with resilient snubber 4, in the present embodiment, ball on screwdriver bit axis between several adjacent balls 3 3 number is 5, and resilient snubber 4 is spring, and spring structure is simple and has excellent elasticity, can be very good to slow down Brute force attack.

In the present embodiment, 1 both ends of bar are criticized and are symmetrically arranged with two clamping grooves 5, the holding of ball shape structure is equipped in clamping groove 5 Pearl 8, the holding pearl 8, by being cast integrally structure, can slow down because of the excessive position in clamping groove 5 of revolving speed with clamping groove 5 Brute force attack.

The above content is only the better embodiment of the utility model, for those of ordinary skill in the art, according to this The thought of utility model, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be understood For limitations of the present invention.

Claims (5)

1. a kind of screwdriver bit of anti-brute force attack, it includes batch bar, and described batch of bar both ends are equipped with to link into an integrated entity with batch bar Cutter head, which is characterized in that be equipped with the buffer bar uniformly inside contracted to axle center in the middle part of described batch of bar, the buffer bar interval is uniform The ball of several ball shape structures is set, and the centre of sphere of the ball is on the axis of buffer bar, several adjacent circles Resilient snubber is equipped between pearl, described batch of bar both ends are symmetrically arranged with two clamping grooves.

2. a kind of screwdriver bit of anti-brute force attack according to claim 1, which is characterized in that the resilient snubber For spring.

3. a kind of screwdriver bit of anti-brute force attack according to claim 1, which is characterized in that the buffer bar with batch Length ratio between bar is 1:2.

4. a kind of screwdriver bit of anti-brute force attack according to claim 1, which is characterized in that set in the clamping groove There is the holding pearl of ball shape structure, the holding pearl and clamping groove are by being cast integrally structure.

5. a kind of screwdriver bit of anti-brute force attack according to claim 1, which is characterized in that the cutter head is a word Type is cross, and the head side end face of the cutter head is equipped with threaded portion.