Screwdriver bit suitable for pistol drill

Abstract

The utility model discloses a screwdriver bit suitable for a pistol drill, which comprises a bit rod, a plurality of arc-shaped grooves are arranged on the outer side wall of the bit rod corresponding to the axial direction of the bit rod, and the groove walls on the two sides of the arc-shaped grooves can abut against V-shaped clamping tongues on the pistol drill; the first working head is integrally formed at one end of the screwdriver rod, and the first working head is provided with a first pattern; the first working head is integrally formed at one end of the screwdriver rod, the second working head is integrally formed at the other end of the screwdriver rod, the second working head is provided with a second pattern, the first pattern or the second pattern is a linear pattern, and rough areas for increasing friction force are arranged on working surfaces on two sides of the linear pattern corresponding to the first working head or the second working head. And the working efficiency is high, and the tool can be conveniently matched with a pistol drill for use.

Description

Technical Field

[0001] The utility model belongs to the technical field of hardware products, and particularly relates to a screwdriver bit applicable to a pistol drill. Background Art

[0002] When using an electric pistol drill or a pneumatic pistol drill to tighten and loosen screws, it is very labor-saving and efficient. However, the current screwdriver bits can only be applicable to one type of flower-shaped screw, with low versatility. Especially when turning a flat-head screw, it is easy to slip and come off, affecting the tightening or loosening efficiency of the screw. In addition, the existing screwdriver bits are not stably clamped and are easy to fall off after long-term use. Moreover, when tightening or loosening the screw, due to the relatively high rotation speed, a strong impact force will be generated instantaneously during rotation, which is easy to damage the meshing part of the screw and the working head of the bit. Therefore, the strength of the bit needs to meet certain requirements.

[0003] Chinese Patent CN201320379452.6 discloses a screwdriver bit. Although it prolongs the service life of the screwdriver bit, its versatility and anti-slip property are poor and it cannot be used for screws of different flower shapes.

[0004] Therefore, how to provide a screwdriver bit with strong versatility, good anti-slip effect, and high efficiency in loosening and tightening screws is an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] In view of this, the utility model provides a screwdriver bit applicable to a pistol drill, which is convenient for clamping of the pistol drill, has strong versatility, is not easy to slip when tightening or loosening a screw, and has high working efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A screwdriver bit applicable to a pistol drill, which comprises:

[0007] A bit rod, on the outer side wall of the bit rod and corresponding to the axial direction of the bit rod, a plurality of arc-shaped grooves are provided, and the two side walls of the arc-shaped grooves can be abutted against the V-shaped tongues on the pistol drill;

[0008] A first working head, which is integrally formed at one end of the bit rod, and the first working head has a first flower shape;

[0009] A second working head, which is integrally formed at the other end of the bit rod, the second working head has a second flower shape, the first flower shape or the second flower shape is a flat-head flower shape, and the two working surfaces of the corresponding flat-head flower shape of the first working head or the second working head have rough areas for increasing the friction force.

[0010] The resulting technical effects are as follows: Multiple arc-shaped grooves are provided on the outer side wall of the batch rod of this product, which can engage with the V-shaped tongues of a pistol drill. The tongue and the corresponding arc-shaped groove are in two-point contact, and the clamping effect is good. Compared with the existing single-point contact clamping effect, it is more stable. In addition, two working heads with different patterns can adapt to different working scenarios, and are flexible and convenient to use. Rough areas for increasing friction are also provided on the two working surfaces on both sides of the straight-flower pattern, effectively avoiding slippage between the screwdriver bit and the screw, and improving work efficiency and quality.

[0011] Preferably, a plurality of square protrusions are arranged in an array within the rough area.

[0012] The resulting technical effects are as follows: The purpose of the square protrusions arranged in an array is to increase the contact force with the straight-shaped screw groove, and avoid the screwdriver bit slipping off the screw head during screwing.

[0013] Preferably, the thickness dimension of the first working head or the second working head corresponding to the straight-flower pattern gradually changes in the direction away from the batch rod.

[0014] The resulting technical effects are as follows: The straight-flower pattern head with a gradually changing thickness has higher strength, is more material-saving, and is more beautiful.

[0015] Preferably, the two working surfaces on both sides of the first working head or the second working head corresponding to the straight-flower pattern are both wavy structural surfaces.

[0016] The resulting technical effects are as follows: Compared with the traditional single gradually changing curved surface, the working head with this structural design has better strength performance.

[0017] Preferably, the top surfaces of the plurality of square protrusions are located on the wavy structural surface.

[0018] The resulting technical effects are as follows: The top surfaces of the square protrusions are on the wavy structural surface to facilitate the use of the screwdriver bit and there will be no protrusion on the working surface.

[0019] Preferably, the batch rod is of a multi-prismatic structure, a V-shaped groove surface is provided on the outer side wall of the batch rod, and the arc-shaped groove is correspondingly opened at the bottom of the V-shaped groove surface.

[0020] The resulting technical effects are as follows: The design of the V-shaped groove surface is to provide a clearance for the V-shaped tongue, so that the V-shaped tongue can smoothly enter the arc-shaped groove, and the clamping effect is better and more stable.

[0021] Preferably, the rough area is close to the end of the first working head or the second working head.

[0022] The resulting technical effects are as follows: The rough area near the end of the working head is convenient to function, increases the friction during work with the screw, and is not easy to slip. Description of the Drawings

[0023] Figure 1 The utility model is a structure of a screwdriver bit suitable for a pistol drill Figure 1 ;

[0024] Figure 2 The utility model is a structure of a screwdriver bit suitable for a pistol drill Figure 2 ;

[0025] Figure 3 The utility model is a partially enlarged schematic diagram of a screwdriver bit suitable for a pistol drill.

[0026] 1 batch rod, 2 arc groove, 3 first working head, 4 second working head, 5 rough area, 6 wave structure surface, 7 square convex head, 8 V-groove surface. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See the attached Figures 1 to 3 According to an embodiment of the utility model, a screwdriver bit suitable for a pistol drill comprises:

[0029] A screw rod 1, a plurality of arc-shaped grooves 2 are arranged on the outer wall of the screw rod 1 and corresponding to the axial direction of the screw rod, and the groove walls on both sides of the arc-shaped groove 2 can abut against the V-shaped tongue on the pistol drill. Specifically, the screw rod is a multi-prism rod, and a plurality of V-shaped groove surfaces are arranged on the outer wall of the screw rod corresponding to the axial direction thereof, and the arc-shaped grooves are correspondingly opened at the groove bottom of the V-shaped groove surface. Compared with the cooperation between the traditional V-shaped groove surface and the tongue, the arc-shaped groove increases the contact point with the tongue, and is not easy to fall off after long-term use;

[0030] A first working head 3, which is integrally formed at one end of the batching rod 1, and has a first flower shape;

[0031] The second working head 4 is integrally formed at the other end of the batch rod 1, and the second working head 4 has a second pattern. The first pattern or the second pattern is a straight pattern. The first working head 3 or the second working head 4 has a rough area 5 on both sides of the working surface of the straight pattern corresponding to the first working head 3 or the second working head 4 to increase friction.

[0032] The first working head and the second working head have different patterns, one is a hexagonal plum blossom type and the other is a flat type, the purpose is to improve the flexibility of using the bit.

[0033] In some other embodiments, a plurality of square bosses 7 are arranged in an array within the rough area 5. The square bosses actually increase the roughness of the working surface of the working head, thereby increasing the frictional force with the screw and avoiding slipping.

[0034] In some other specific embodiments, the thickness dimension of the first working head 3 or the second working head 4 corresponding to the straight-flute type gradually changes in a direction away from the shank. That is to say, the first working head or the second working head may both be straight-flute type heads, which is not clearly defined herein. In this embodiment, the first working head is a straight-flute type head, and the second working head is a cross-flute type head. The thickness dimension of the straight-flute type head is gradually changed, which on the one hand meets the requirements of the straight-flute type structure, and on the other hand can slow down the stress concentration and increase the structural strength.

[0035] In some other embodiments, both side working surfaces of the first working head 3 corresponding to the straight-flute type are wavy structural surfaces 6. Specifically, it can be understood that there are convex regions on the gradually decreasing curved surface of the straight-flute type working surface, which increases the structural strength.

[0036] Specifically, the top surfaces of the plurality of square bosses 7 are located on the wavy structural surface 6. Specifically, the square bosses are actually arranged in a larger working surface groove, so that the top surfaces of the square bosses are located on the working surface, which actually increases the roughness of the working surface of the working head.

[0037] In some specific embodiments, a plurality of annular grooves are provided at intervals on the outer peripheral side wall of the shank from one end to the other end, which improves the structural harmony effect of the bit head.

[0038] For the devices and usage methods disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference may be made to the description in the method part.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A screwdriver bit applicable to a pistol drill, characterized in that Comprising: A screwdriver rod (1), on the outer side wall of the screwdriver rod (1) and corresponding to the axial direction of the screwdriver rod, a plurality of arc-shaped grooves (2) are provided, and the two side walls of the arc-shaped grooves (2) can be abutted against the V-shaped tongues on the pistol drill; A first working head (3), the first working head (3) is integrally formed at one end of the screwdriver rod (1), and the first working head (3) has a first flower shape; A second working head (4), the second working head (4) is integrally formed at the other end of the screwdriver rod (1), the second working head (4) has a second flower shape, the first flower shape or the second flower shape is a straight flower shape, and rough areas (5) for increasing the friction force are provided on the two working surfaces of the first working head (3) or the second working head (4) corresponding to the straight flower shape.

2. The screwdriver bit applicable to a pistol drill according to claim 1, characterized in that, A plurality of square protrusions (7) are arranged in an array in the rough area (5).

3. The screwdriver bit applicable to a pistol drill according to claim 2, wherein The thickness dimension of the first working head (3) or the second working head (4) corresponding to the straight flower shape is gradually changed in the direction away from the screwdriver rod.

4. The screwdriver bit applicable to a pistol drill according to claim 3, wherein Both working surfaces of the first working head (3) or the second working head (4) corresponding to the straight flower shape are wavy structural surfaces (6).

5. A screwdriver bit applicable to a pistol drill according to claim 4, characterized in that, The top surfaces of the plurality of square protrusions (7) are located on the wavy structural surface (6).

6. The screwdriver bit applicable to a pistol drill according to claim 1, wherein The screwdriver rod (1) is of a multi-prism structure, a V-shaped groove surface (8) is provided on the outer side wall of the screwdriver rod (1), and the arc-shaped grooves (2) are correspondingly opened at the bottom of the V-shaped groove surface (8).

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