Dual-purpose screwdriver bit

Abstract

The utility model discloses a dual-purpose screwdriver bit which comprises a straight-rod-shaped screwdriver bit body, a first working head and a second working head are integrally arranged at the two ends of the screwdriver bit body respectively, the first working head is a cross screwdriver bit or a straight screwdriver bit, and the second working head is an inner hexagonal screwdriver bit. The dual-purpose screwdriver bit can adapt to screwing of two different types of screws and is high in use flexibility, the anti-skid locking structures are arranged on the edges of the working head, the function of locking the screws is achieved, after the working head is inserted into the screwing grooves in the screws, the screws are locked through the anti-skid locking structures on the working head so that the screws can be prevented from falling off easily, and the working efficiency is improved. And the screwdriver head quality is improved, the working efficiency is improved, and good practicability and generalizability are achieved.

Description

Technical Field

[0001] The utility model belongs to the field of bit structure design, and particularly relates to a dual-purpose bit. Background Art

[0002] An electric screwdriver bit is a tool accessory installed on an electric screwdriver or an electric screw gun for tightening or loosening screws. Most of the existing bits are single-ended bits, with a working head provided only at one end, and such bits are only suitable for one type of screw; there are also bits with working heads at both ends, but the structures of the working heads at both ends are the same, and such bits are also only suitable for the same type of screw. The above bits still have certain inconveniences in use, that is, they cannot be used to screw two different types of screws, so the applicability is relatively poor; moreover, the existing bits lack an anti-slip function. When using, the screw cannot be locked on the working head of the bit, and the working head of the bit is also prone to slipping out of the screwing groove of the screw during the process of screwing the screw, affecting the work efficiency. Content of the Utility Model

[0003] In view of this, the utility model aims to provide a dual-purpose bit, which is applicable to two different types of screws and has a wider application range.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] The utility model provides a dual-purpose bit, including a bit body in a straight rod shape. First and second working heads are integrally provided at both ends of the bit body respectively. The first working head is a Phillips bit or a flat bit, and the second working head is an internal hexagon bit.

[0006] In some embodiments, the first working head or / and the second working head have an edge arranged along the axial direction, and tooth grooves and anti-slip teeth are provided on the outer edge of the edge to form an anti-slip locking structure.

[0007] In some embodiments, a plurality of tooth grooves and a plurality of anti-slip teeth are arranged at intervals on the edge, so that the anti-slip locking structure forms a serrated shape.

[0008] In some embodiments, the tooth groove is a triangular groove, a trapezoidal groove or an arc groove.

[0009] In some embodiments, first and second annular grooves are respectively provided on the bit body at positions close to the first and second working heads.

[0010] In some embodiments, a thin diameter section is provided in the middle of the bit body. The thin diameter section is located between the first annular groove and the second annular groove and has a distance from the first annular groove and the second annular groove.

[0011] In some embodiments, the thin-diameter section is a structure that is thin in the middle and thick at both ends, and the length of the thin-diameter section is less than half the length of the bit body.

[0012] In some embodiments, the outer peripheral wall of the thin-diameter segment is coated with a plastic layer, and the plastic layer and the thin-diameter segment are an integral injection-molded structure.

[0013] In some embodiments, an annular pattern is arranged around the outer peripheral wall of the thin-diameter section.

[0014] In some embodiments, the bit body is made of alloy steel.

[0015] The utility model has the positive effects: the dual-purpose screwdriver bit of the utility model is provided with working heads of different structures at both ends, such as a hexagonal screwdriver bit at one end and a cross screwdriver bit at the other end (or a hexagonal screwdriver bit at one end and a flat head at the other end), so that it can adapt to loosening and tightening of two different types of screws, effectively improving the applicability and having good practicality and popularization; and by providing an anti-slip locking structure on the edge of the first working head or / and the second working head, the matching force between the edge of the working head and the side wall of the screwing groove on the screw can be enhanced, so that after the working head is inserted into the screwing groove on the screw, the anti-slip teeth on the working head can prevent the screw from slipping and locking to prevent the screw from falling easily, thereby facilitating construction operation; and in the process of screwing the screw, the anti-slip teeth can enhance the locking force between the working head and the side wall of the screwing groove, preventing the working head from slipping out of the screwing groove and the occurrence of slipping teeth problem, and there is no need to hold the screw by hand when screwing the screw, thereby ensuring the accuracy of the screw fixing position, and effectively improving the performance of the dual-purpose screwdriver bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a dual-purpose screwdriver bit in the utility model;

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 for Figure 1 A partial enlarged view of point B in the middle;

[0020] Figure 4 It is a cross-sectional view of the dual-purpose screwdriver bit in the utility model.

[0021] The attached drawing reference numerals shown in the figure: 1 - bit body; 10 - edge; 11 - first working head; 12 - second working head; 13 - tooth groove; 14 - anti-slip teeth; 15 - first annular groove; 16 - second annular groove; 17 - small diameter section; 18 - plastic layer. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back,...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly. In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0025] The dual-purpose bit structure provided by the embodiments of the present invention Figures 1 to 3 As shown, it includes a straight rod-shaped bit body 1; both ends of the bit body 1 are integrally provided with a first working head 11 and a second working head 12 respectively. In this embodiment, the structures of the first working head 11 and the second working head 12 are different. The first working head 11 is a cross bit, and the second working head 12 is an internal hexagonal bit; as a deformation scheme, the first working head 11 can also be set as a flat bit, and the second working head 12 is set as an internal hexagonal bit; in this embodiment, the dual-purpose bit is provided with working heads of different structures at both ends, so that it can be adapted to loosen and tighten two different types of screws, effectively improving the applicability, and having good practicability and popularization.

[0026] Further, referring to Figure 2 and Figure 3 as shown, the first working head 11 and the second working head 12 have edges 10 arranged axially, and tooth grooves 13 and anti-slip teeth 14 are provided on the outer edges of the edges 10 to form an anti-slip locking structure. Preferably, the anti-slip locking structure is provided on the six edges of the hexagon bit, on the four edges of the cross bit, and on the two edges of the flat bit; when in use, after inserting the working head into the screwing groove on the screw, the existence of the anti-slip locking structure can improve the kissing force between the working head and the side wall of the screwing groove on the screw. After the working head is inserted into the screwing groove on the screw, the screw can be locked by the anti-slip locking structure to prevent the screw from falling off easily, increasing the quality of the bit and improving work efficiency; moreover, during the process of screwing the screw, it can prevent the working head from slipping out of the screwing groove and the problem of slipping teeth. When screwing the screw, it is not necessary to hold the screw by hand, ensuring the fixing position accuracy of the screw and effectively improving the use performance of the dual-purpose bit; in actual operation, the anti-slip locking structure can also be provided only on the edge 10 of the first working head 11 or the second working head 2. Exemplarily, the tooth groove 13 can be set as a triangular groove, a trapezoidal groove or an arc groove; the shape of the anti-slip tooth 13 can be a triangle, a quadrilateral or the like.

[0027] As a preferred solution, a plurality of tooth grooves 13 and a plurality of anti-slip teeth 14 are arranged at intervals on each edge 10, so that the anti-slip locking structure forms a serrated shape, thereby enhancing the anti-slip and locking effects on the screw.

[0028] In some embodiments, first annular grooves 15 and second annular grooves 16 are respectively provided on the bit body 1 at positions close to the first working head 11 and the second working head 12. When installing the dual-purpose bit on a power tool, the fixing effect of the dual-purpose bit can be enhanced by clamping with the first annular groove 15 or the second annular groove 16; moreover, the first annular groove 15 and the second annular groove 16 can also be used for positioning the magnetic ring when the dual-purpose bit is paired with the magnetic ring (the buckle on the magnetic ring is adapted to form a snap fit with the first annular groove 51 / second sliding groove 16).

[0029] In some embodiments, a reduced-diameter section 17 is provided in the middle of the bit body 1. The reduced-diameter section 17 is located between the first annular groove 15 and the second annular groove 16 and has a spacing from the first annular groove 15 and the second annular groove 16; the reduced-diameter section 17 is further set to have a structure that is thin in the middle and thick at both ends, and the length of the reduced-diameter section 17 is less than half of the length of the bit body. In this way, through structural optimization, the aesthetic degree of the product can be improved without affecting the working performance of the bit.

[0030] In some embodiments, the outer peripheral wall of the thin diameter section 17 is coated with a plastic layer 18, and the plastic layer 18 and the thin diameter section 17 are an integral injection-molded structure; the presence of the plastic layer 18 can be conducive to printing product information, and the plastic layer 18 can be made of brightly colored plastic materials such as orange, red, and blue, which can further enhance the aesthetics of the screwdriver bit; and the plastic layer 18 is injection-molded on the screwdriver bit body 1 to enhance its bonding with the thin diameter section 17, which can effectively prevent the plastic layer 18 from being damaged.

[0031] In some embodiments, an annular pattern is disposed around the outer peripheral wall of the thin-diameter segment 17 , and the presence of the annular pattern can further enhance the bonding force between the plastic layer 18 and the thin-diameter segment 17 .

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A dual-purpose bit, comprising a bit body (1) in a straight rod shape, characterized in that, Both ends of the bit body (1) are integrally provided with a first working head (11) and a second working head (12) respectively, and the first working head (11) is a Phillips bit or a flat bit, and the second working head (12) is an internal hexagon bit.

2. The dual-purpose bit according to claim 1, wherein The first working head (11) or / and the second working head (12) has an edge (10) arranged axially, and a tooth groove (13) and an anti-slip tooth (14) are provided on the outer edge of the edge (10) to form an anti-slip locking structure.

3. The dual-purpose bit according to claim 2, wherein, A plurality of spaced tooth grooves (13) and a plurality of anti-slip teeth (14) are arranged on the outer edge of the edge (10), so that the anti-slip locking structure forms a serrated shape.

4. The dual-purpose bit according to claim 2, wherein The tooth groove (13) is a triangular groove, a trapezoidal groove or an arc groove.

5. The dual-purpose bit according to claim 1, characterized in that, First annular grooves (15) and second annular grooves (16) are respectively provided on the bit body (1) at positions close to the first working head (11) and the second working head (12).

6. The dual-purpose bit according to claim 5, characterized in that, A reduced-diameter section (17) is provided in the middle of the bit body (1), and the reduced-diameter section (17) is located between the first annular groove (15) and the second annular groove (16) and has a spacing from the first annular groove (15) and the second annular groove (16).

7. The dual-purpose bit according to claim 6, characterized in that, The reduced-diameter section (17) has a structure that is thin in the middle and thick at both ends, and the length of the reduced-diameter section (17) is less than half of the length of the bit body (1).

8. The dual-purpose bit according to claim 6, characterized in that, A plastic layer (18) is coated on the outer peripheral wall of the reduced-diameter section (17), and the plastic layer (18) and the reduced-diameter section (17) are an injection-molded integral structure.

9. The dual-purpose bit according to claim 8, wherein, Annular lines are arranged around the outer peripheral wall of the reduced-diameter section (17).

10. The dual-purpose bit according to claim 1, wherein, The bit body (1) is made of alloy steel.

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