Hand protection screwdriver bit assembly of screwdriver

Abstract

The utility model discloses a hand protection screwdriver head assembly of a screwdriver. The hand protection screwdriver head assembly comprises a hexagonal screwdriver head and a protection sleeve. The hexagonal screwdriver head comprises an outer hexagonal rod body, a plugging buckle ring groove and a tool bit; the hexagonal rod body is a regular hexagonal prism, the outer wall of the upper end of the hexagonal rod body is provided with a pluggable buckle ring groove, and the bottom of the hexagonal rod body is provided with a tool bit. The hexagonal rod body, the inserting and pulling buckle ring groove and the tool bit are integrally formed. The protective sleeve is cylindrical, a cylindrical composite cavity is formed in the middle of the protective sleeve, and the cylindrical composite cavity penetrates through the upper end and the lower end of the sleeve; and the cylindrical composite cavity comprises a regular hexagonal prism insertion cavity at the upper end and a cylindrical insertion cavity at the lower end. The inserting-pulling buckle ring groove of the hexagonal screwdriver head is connected with a cutter handle inserting-pulling buckle of the electric screwdriver head, and when the electric screwdriver head is started, the cutter handle drives the hexagonal screwdriver head to rotate. The hand protection screwdriver bit assembly of the screwdriver is simple and reasonable in design, stable and reliable in structure and stable in operation; and fingers can be effectively prevented from being hurt by the screwdriver head.

Description

Technical Field

[0001] The utility model relates to the technical field of screwdrivers, and particularly relates to a handguard bit assembly of a screwdriver. Background Art

[0002] Screwdrivers and bits are two common tools, which are usually used together to tighten or loosen screws. A screwdriver is a manual tool, usually having a long handle and a rotatable bit, and the shape of the bit can match different sizes and types of screws. A bit is another name for a screwdriver bit, and they have different shapes, such as flat head, Phillips head, star head, etc., to adapt to different types of screw heads. Bits can be used manually or in combination with electric or pneumatic screwdrivers, and the latter can improve work efficiency.

[0003] When using the existing bit to screw a screw, the user usually holds the screw with one hand and holds the handle of the electric screwdriver with the other hand. In this use scenario, the rotating bit is likely to touch the thumb, index finger, and middle finger that hold the screw. Therefore, this application designs a bit assembly with a finger protection function. Content of the Utility Model

[0004] The purpose of the utility model is to provide a handguard bit assembly of a screwdriver, which has a simple and reasonable design, a stable and reliable structure, and stable operation; and can effectively prevent the bit from hurting fingers.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A handguard bit assembly of a screwdriver includes a hex bit and a protective sleeve;

[0007] The hex bit includes an outer hexagon rod body, a plug-in and pull-out snap ring groove, and a bit; the hexagon rod body is a regular hexagonal prism, the outer wall of its upper end is provided with a plug-in and pull-out snap ring groove, and its bottom is provided with a bit;

[0008] The hexagon rod body, the plug-in and pull-out snap ring groove, and the bit are integrally formed;

[0009] The bit is a Phillips bit or a flat head bit;

[0010] The protective sleeve is a plastic cylindrical sleeve, preferably made of a transparent material;

[0011] The protective sleeve is cylindrical, and a columnar composite cavity is provided in the middle thereof, and the columnar composite cavity penetrates through the upper and lower ends of the sleeve;

[0012] The columnar composite cavity includes a regular hexagonal prism insertion cavity at the upper end and a cylindrical insertion cavity at the lower end; the bottom of the regular hexagonal prism insertion cavity is connected to the top of the cylindrical insertion cavity and is coaxially arranged.

[0013] The insertion and extraction snap ring groove of the hexagonal bit is connected to the handle of the electric bit by insertion and extraction snap connection. When the electric bit is started, the handle drives the hexagonal bit to rotate.

[0014] The hexagonal rod of the hexagonal bit is inserted into the regular hexagonal prism insertion cavity of the protective sleeve and is connected to the protective sleeve by insertion and extraction; the bit is located in the cylindrical insertion cavity.

[0015] Briefly describe its hand protection principle: The protective sleeve is sleeved around the bit, and the bit is located in the cylindrical insertion cavity; when driving a screw, hold the screw with the left hand, move the electric bit with the right hand to sleeve the protective sleeve on the nut, and after fitting the top of the screw with the bit, start the electric bit.

[0016] The beneficial effects of the present utility model are:

[0017] Its design is simple and reasonable, the structure is stable and reliable, and the operation is stable;

[0018] It can effectively prevent the bit from hurting the fingers. Brief Description of the Drawings

[0019] Figure 1 It is a schematic structural view of a hand protection bit assembly of a screwdriver of the present utility model;

[0020] Figure 2 It is a schematic structural view of the hexagonal bit of the present utility model;

[0021] Figure 3 It is a schematic structural view of the protective sleeve of the present utility model. Specific Embodiments

[0022] The following further describes the specific embodiments of the present utility model with reference to the drawings. It should be noted here that the description of these embodiments is used to help understand the present utility model, but does not constitute a limitation to the present utility model. In addition, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] As Figures 1-3 shown, a hand protection bit assembly of a screwdriver includes a hexagonal bit 1 and a protective sleeve 2;

[0024] The hexagonal bit 1 includes an external hexagonal rod 11, an insertion and extraction snap ring groove 12, and a bit 13; the hexagonal rod is a regular hexagonal prism, the outer wall of its upper end is provided with the insertion and extraction snap ring groove 12, and its bottom is provided with the bit 13;

[0025] The hexagonal rod, the insertion and extraction snap ring groove 12, and the bit 13 are integrally formed;

[0026] The bit 13 is a cross bit 13 or a flat bit 13;

[0027] The protective sleeve 2 is a plastic columnar sleeve, preferably made of a transparent material;

[0028] The protective sleeve 2 is cylindrical, and a columnar composite cavity is provided in the middle thereof, and the columnar composite cavity penetrates through the upper and lower ends of the sleeve;

[0029] The columnar composite cavity includes a regular hexagonal prism insertion cavity 21 at the upper end and a cylindrical insertion cavity 22 at the lower end; the bottom of the regular hexagonal prism insertion cavity 21 is connected to the top of the cylindrical insertion cavity 22 and is coaxially arranged.

[0030] The insertion and extraction snap ring groove 12 of the hexagonal bit 1 is snap-connected to the handle of the electric bit for insertion and extraction. When the electric bit is started, the handle drives the hexagonal bit 1 to rotate.

[0031] The hexagonal rod body of the hexagonal bit 1 is inserted into the regular hexagonal prism insertion cavity 21 of the protective sleeve 2 and is connected to the protective sleeve 2 for insertion and extraction; the bit 13 is located in the cylindrical insertion cavity 22.

[0032] Briefly describe its hand protection principle: The protective sleeve 2 is sleeved outside the bit 13, and the bit 13 is located in the cylindrical insertion cavity 22; when screwing a screw, hold the screw with the left hand, move the electric bit with the right hand to sleeve the protective sleeve 2 on the nut, and after fitting the top of the screw with the bit 13, start the electric bit. The hexagonal bit will drive the protective sleeve 2 to rotate, and the fingers cannot touch the bit 13 and the hexagonal rod body 11, playing a role in protecting the fingers.

[0033] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the present invention, various changes, modifications, substitutions and variations to these embodiments still fall within the protection scope of the present invention.

Claims

1. A hand guard bit assembly for a screwdriver, characterized in that: Including hexagonal screwdriver bit and protective sleeve; The hexagonal screwdriver bit comprises an outer hexagonal rod body, a plug-in buckle ring groove, and a cutter head; the hexagonal rod body is a regular hexagonal prism, the outer wall of the upper end of which is provided with a plug-in buckle ring groove, and the bottom of which is provided with a cutter head; The hexagonal rod body, the plug-in buckle ring groove, and the cutter head are integrally formed; The protective sleeve is a plastic cylindrical sleeve; The protective sleeve is cylindrical, with a cylindrical composite cavity in the middle, and the cylindrical composite cavity runs through the upper and lower ends of the sleeve; The cylindrical composite cavity comprises a regular hexagonal prism insertion cavity at the upper end and a cylindrical insertion cavity at the lower end; the bottom of the regular hexagonal prism insertion cavity is connected to the top of the cylindrical insertion cavity and are coaxially arranged; The hexagonal rod body of the hexagonal screwdriver bit is inserted into the regular hexagonal prism insertion cavity of the protective sleeve and is plug-in-pull connected to the protective sleeve; the tool head is in the cylindrical insertion cavity.

2. The screwdriver bit assembly according to claim 1, characterized in that: The cutter head is a cross cutter head or a slotted cutter head.

3. The screwdriver bit assembly according to claim 2, characterized in that: The protective sleeve is made of transparent material.

4. The screwdriver bit assembly according to claim 3, characterized in that: The plug-in buckle ring groove of the hexagonal screwdriver bit is connected with the plug-in buckle of the handle of the electric screwdriver bit.

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