Screwdriver head

Abstract

The utility model discloses a screwdriver bit, which comprises a holding rod and a working head, the working head is arranged at one end of the holding rod, and the working head comprises a reference plane, a base plate and a base plate, the protruding part protrudes out of the reference plane, the edge of the protruding part is located on the inner side of the edge of the reference plane, and the protruding part is used for being inserted into a screw counter bore to be matched with a screw; and the plurality of sunken parts are sunken in the reference plane, and the plurality of sunken parts are respectively and correspondingly arranged at the plurality of notches of the convex part. The vacuum screwdriver head effectively solves the problem that the root of the protruding part is broken due to force concentration, the service life is greatly prolonged, and the adsorption effect of the vacuum screwdriver head is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of locking tools, and in particular to a bit. Background Technology

[0002] In the existing technology, the assembly of micro-precision screws has shifted from labor-intensive production to automated production lines, which places higher demands on the screw assembly process, especially on the lifespan of the fastening tools. Therefore, a more durable bit is needed. Summary of the Invention

[0003] According to an embodiment of the present invention, a screwdriver bit is provided, comprising a handle and a working head, wherein the working head is disposed at one end of the handle and comprises:

[0004] A reference plane is set at one end of the grip.

[0005] The protrusion protrudes from the reference plane, and the edge of the protrusion is located inside the edge of the reference plane. The protrusion is used to insert into the screw countersunk hole and cooperate with the screw.

[0006] Multiple recesses are recessed into the reference plane, and the multiple recesses are respectively set at the multiple notches of the protrusion.

[0007] Furthermore, the depth of the recessed portion is no greater than 5mm.

[0008] Furthermore, the bottom surface of the recess is parallel to the reference plane.

[0009] Furthermore, the protrusions are Y-shaped or cross-shaped.

[0010] Furthermore, the protrusion is located at the center of the reference plane.

[0011] Furthermore, an annular snap-fit ​​groove is provided on the grip bar.

[0012] Furthermore, the grip bar has an internal cavity;

[0013] A connecting hole is provided on the bottom surface of the recessed part, and the connecting hole connects to the cavity;

[0014] The side wall of the grip has a connection hole that connects to the cavity and to an external vacuum generator;

[0015] The edge of the recess is located inside the edge of the reference plane.

[0016] Furthermore, the edge of the recess is located outside the edge of the connecting hole.

[0017] According to an embodiment of the present invention, a screwdriver bit effectively solves the problem of breakage at the root of the protrusion caused by force concentration, greatly improves the service life, and enhances the adsorption effect of the vacuum screwdriver bit.

[0018] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0019] Figure 1 A schematic diagram of the working head of an existing bit;

[0020] Figure 2 This is a schematic diagram of the working head of a bit according to Embodiment 1 of the present invention;

[0021] Figure 3 This is a schematic diagram of a bit according to Embodiment 1 of the present invention;

[0022] Figure 4 A schematic diagram of the working head of an existing vacuum screwdriver bit;

[0023] Figure 5 This is a schematic diagram of the working head of a bit according to Embodiment 2 of the present invention;

[0024] Figure 6 This is a schematic diagram of a bit according to Embodiment 2 of the present invention;

[0025] Figure 7 This is a cross-sectional schematic diagram of a bit according to Embodiment 2 of the present invention;

[0026] Reference numerals: grip 1, annular snap groove 11, cavity 12, connecting hole 13, working head 2, reference plane 21, protrusion 22, recess 23, connecting hole 24. Detailed Implementation

[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0028] First, combine Figures 1-7 This invention describes a screwdriver bit according to an embodiment of the present invention, used for fastening screws, and has a wide range of applications.

[0029] Example 1: As Figures 1-7As shown, the bit of this utility model embodiment includes a handle 1 and a working head 2. The working head 2 is disposed at one end of the handle 1. The handle 1 is used to hold or connect to an external bit sleeve. The working head 2 includes: a reference plane 21 disposed at one end of the handle 1; a protrusion 22 protruding from the reference plane 21, with the edge of the protrusion 22 located inside the edge of the reference plane 21, the protrusion 22 being used to insert into a screw countersunk hole, cooperate with the screw, and transmit torque, the reference plane 21 defining the insertion depth of the protrusion 22; and multiple recesses 23 recessed below the reference plane 21, the multiple recesses 23 being respectively disposed at multiple notches of the protrusion 22. In this embodiment, the protrusion 22 is Y-shaped or cross-shaped, and the notches are between two branches. In this embodiment, by adding the recesses 23, the problem of breakage at the root of the protrusion 22 caused by force concentration is effectively solved, greatly improving the service life.

[0030] Furthermore, such as Figure 2 As shown, in this embodiment, the recess depth d of the recess 23 is no greater than 5mm.

[0031] Furthermore, such as Figure 2 As shown, in this embodiment, the bottom surface of the recess 23 is parallel to the reference plane 21, that is, the recess 23 is a flat groove.

[0032] Furthermore, such as Figure 2 As shown in the figure, in this embodiment, the protrusion 22 is located at the center of the reference plane 21, which results in a more balanced force distribution and a more aesthetically pleasing appearance.

[0033] Furthermore, such as Figure 3 As shown, in this embodiment, the handle 1 is provided with an annular snap-fit ​​groove 11 to achieve connection and positioning with the external sleeve.

[0034] Example 2: Figures 4-7 As shown, the grip 1 has an internal cavity 12; the bottom surface of the recess 23 has a connecting hole 24, which connects to the cavity 12; the side wall of the grip 1 has a connecting hole 13, which connects to the cavity 12 and is connected to an external vacuum generator; the edge of the recess 23 is located inside the edge of the reference plane 21 to ensure suction sealing. The vacuum generator holds the screw in place through the connecting hole 13, the cavity 12, and the connecting hole 24.

[0035] Furthermore, such as Figure 5 As shown, in this embodiment, the edge of the recess 23 is located outside the edge of the connecting hole 24, which increases the adsorption area and enhances the adsorption effect.

[0036] Above, refer to Figures 1-7This invention describes a screwdriver bit according to an embodiment of the present invention, which effectively solves the problem of breakage at the root of the protrusion caused by force concentration, greatly improves the service life, and enhances the adsorption effect of the vacuum screwdriver bit.

[0037] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0038] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A screwdriver bit comprising a handle and a working head, the working head being disposed at one end of the handle, characterized in that, The working head includes: A reference plane is disposed at one end of the grip; The protrusion protrudes from the reference plane, and the edge of the protrusion is located inside the edge of the reference plane. The protrusion is used to be inserted into the screw countersunk hole and to cooperate with the screw. Multiple recesses are provided, which are recessed into the reference plane, and the multiple recesses are respectively provided at the multiple notches of the protrusion.

2. The bit as described in claim 1, characterized in that, The depth of the recess is no more than 5 mm.

3. The bit as described in claim 1, characterized in that, The bottom surface of the recess is parallel to the reference plane.

4. A bit as described in claim 1, characterized in that, The protrusion is Y-shaped or cross-shaped.

5. A bit as described in claim 1, characterized in that, The protrusion is located at the center of the reference plane.

6. A bit as described in claim 1, characterized in that, The grip bar has an annular snap-fit ​​groove.

7. A bit as described in any one of claims 1 to 6, characterized in that, The grip bar has an internal cavity; The bottom surface of the recess is provided with a connecting hole, which connects to the cavity; The side wall of the grip is provided with a connection hole, which connects to the cavity and to an external vacuum generator; The edge of the recess is located inside the edge of the reference plane.

8. A bit as described in claim 7, characterized in that, The edge of the recess is located inside the edge of the connecting hole.

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