CN208528970U - A kind of dedicated magnetic head of screwdriver - Google Patents

Abstract

The utility model discloses a kind of dedicated magnetic heads of screwdriver, including shell, the interior of shell is chimeric to be equipped with inner casing, and the magnet of ring structure is fixedly connected on the left of inner casing, and shell is fixed with outside magnet, it is fitted between the inner casing and shell and spring is installed, and convex cap is fixedly connected with below spring, it is convex structure below the convex cap, and inner casing upper interior offers the groove structure coincideing with convex cap shaped, and convex cap is embedded in inside the groove structure of inner casing, the convex cap bottom is connected with screwdriver, the screwdriver, which runs through, is entrenched in magnet and inner housing inner.The dedicated magnetic head of the screwdriver can be improved the magnetism of internal screwdriver, screwdriver is enabled not only can mutually to be fixed by form fit when contacting with screw, and the fixation that can be attracted each other by magnetism, avoid screwdriver in fixed screw, screw generates the case where being detached from screwdriver, the more stable of the two connection is enabled, to improve the fixed efficiency of screw.

Description

A kind of dedicated magnetic head of screwdriver

Technical field

The utility model relates to driver technology field, specially a kind of dedicated magnetic head of screwdriver.

Background technique

Screwdriver is a kind of tool for twisting screw to force its in place, usually has a thin sphenocephaly, can insert Enter in the line of rabbet joint or recess of screw cap, Beijing-Tianjin Hebei and Shandong Shanxi and Shaanxi northern Shensi and North Henan dialect are known as " screwdriver ", and Henan north is more Call is screwdriver, and the ground such as Jiangxi, Anhui and Hubei, Yellow River in Henan areas to the south, Guanzhong, Shanxi are known as " bottle opener ", Midwest Area referred to as " is cut ", and Yangtze River Delta Area is known as " turn screw " electric screwdriver, as the term suggests it is exactly that manpower is replaced with electric motor Installation and removal screw, usually combined screw batch.

Existing screwdriver is easy to produce there are loosening is easy to produce when screw is blocked in front end in fixed screw The case where screwdriver is separated with screw, influences fixed speed.

Summary of the invention

The purpose of this utility model is to provide a kind of dedicated magnetic heads of screwdriver, to solve above-mentioned background technique proposition Screwdriver there are problems that being easy to produce loosening when fixed screw currently on the market.

To achieve the above object, the utility model provides the following technical solutions: a kind of dedicated magnetic head of screwdriver, including outer Shell, the interior of shell is chimeric to be equipped with inner casing, and the magnet of ring structure is fixedly connected on the left of inner casing, and outside magnet It is fixed with shell, is fitted between the inner casing and shell and spring is installed, and is fixedly connected with convex cap below spring, it is described It is convex structure below convex cap, and inner casing upper interior offers the groove structure coincideing with convex cap shaped, and in convex cap Inside the groove structure of inner casing, the convex cap bottom is connected with screwdriver, and the screwdriver is through being entrenched in magnet and interior Inside shell.

Preferably, difference of the length of the magnet not less than the length of both shell and inner casing.

Preferably, the convex cap bottom be hemispherical configuration, and spring be free state when, convex cap bottom protrudes from inner casing Inner wall at least 3MM.

It preferably, is cylindrical hole structure inside the inner casing and magnet, and inner casing and magnet inside diameter are impartial The circumscribed circle diameter of hexagonal prisms structure in the middle part of screwdriver.

Preferably, the shell is metal material, and shell exterior is annular concave-convex shape structure.

Compared with prior art, the utility model has the beneficial effects that the dedicated magnetic head of the screwdriver can be improved inside The magnetism of screwdriver enables screwdriver not only can mutually be fixed by form fit when contacting with screw, but also can be by magnetic mutual Attract and fix, avoid screwdriver in fixed screw, screw generates the case where being detached from screwdriver, improves the efficiency of fixed screw. The dedicated magnetic head of this screwdriver is internally provided with the magnet of ring structure, screwdriver can be connected with screw by magnetism, enables The two connects more stable, screw is fixed with facilitating, to improve the fixed efficiency of screw.

Detailed description of the invention

Fig. 1 is a kind of dedicated magnetic head explosion figure of screwdriver of the utility model；

Fig. 2 is that a kind of dedicated magnetic head of screwdriver of the utility model assembles sectional view.

In figure: 1, magnet, 2, spring, 3, convex cap, 4, inner casing, 5, shell, 6, screwdriver.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of dedicated magnetic head of screwdriver, including shell 5, it is fitted into inside shell 5 and inner casing 4 is installed, and be fixedly connected with the magnet 1 of ring structure on the left of inner casing 4, and outside magnet 1 It is fixed with shell 5, screwdriver can be connected by the magnet 1 being fitted into inside shell 5 by magnetism with screw, enable the two connection It is more stable, screw is fixed with facilitating, to improve the fixed efficiency of screw, the length of magnet 1 is not less than shell 5 With the difference of the length of both inner casings 4, this structure makes magnet 1 have longer length, enable 1 front end face of magnet can with before shell 5 End face protrudes from 5 front end face front end face of shell, thus using itself magnetic enhancement screwdriver 6 between screw Stability maintenance, be cylindrical hole structure inside inner casing 4 and magnet 1, and inner casing 4 and 1 inside diameter of magnet are equal to The circumscribed circle diameter of 6 middle part hexagonal prisms structure of screwdriver, this structure enable the crest line of 6 middle part hexagonal prisms structure of screwdriver with Inner casing 4 and the fitting of 1 inner wall of magnet, and will form gap between 4 inner wall of side wall and inner casing of 6 middle part hexagonal prisms structure of screwdriver, To facilitate the convex stretching of cap 3 to fix screwdriver 6 again, shell 5 is metal material, and is annular concave-convex shape outside shell 5 Structure, the shell 5 of metal material can have longer service life, and outside is thick for 5 surface of shell of annular concave-convex shape structure Rugosity angle is installed convenient for users to holding this magnetic head, will not skid easily, and installation is fitted between inner casing 4 and shell 5 Have spring 2, and be fixedly connected with convex cap 3 below spring 2, convex 3 bottom of cap be hemispherical configuration, and spring 2 be free state when, Convex 3 bottom of cap protrudes from inner casing 4 inner wall at least 3MM, when this structure makes screwdriver 6 enter 4 inside of inner casing, 6 side wall of screwdriver It can be against on convex cap 3 and spring 2 is enabled to be in compressive state, and the reaction force that the spring 2 of compressive state generates applies pressure to hemisphere On the convex cap 3 of shape structure, enables convex cap 3 carry out compressing fixation in a manner of point contact with screwdriver 6, be convex below convex cap 3 Structure, and 4 upper interior of inner casing offers the groove structure coincideing with convex 3 shape of cap, and convex cap 3 is embedded in the recessed of inner casing 4 Inside slot structure, convex 3 bottom of cap is connected with screwdriver 6, and screwdriver 6, which runs through, to be entrenched in inside magnet 1 and inner casing 4.

Working principle: in magnetic head dedicated using the screwdriver, one hand of user pinches the convex outside shell 5 In structure, screwdriver 6 is sequentially passed through inner casing 4 and magnet 1 by another hand, at this time the side wall of 6 middle part six prismatic structure of screwdriver Convex can be touched in 3 bottom of convex cap of 4 inner wall of inner casing, then convex cap 3 can move up under the extruding of screwdriver 6, then The spring 2 of free state can be generated reaction force by compression, and the reaction force that spring 2 generates, which can act on convex cap 3, enables it support Firmly screwdriver 6 is fixed, and then remote 1 end of magnet of the dedicated magnetic head of this screwdriver is mounted on electric screw driver main body, When needing fixed screw, among the groove of 6 near magnet of screwdriver, 1 end insertion screw top, at this time between screwdriver 6 and screw It is not only fitting to connection by shape, and magnet 1 can be transferred to the two between screwdriver 6 and screw again by the magnetism of itself It is fixed, enable screw not fall off from screwdriver 6 easily, to complete a series of activities.

Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art Say, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic into Row equivalent replacement, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all It is included within the scope of protection of this utility model.

Claims (5)

1. a kind of dedicated magnetic head of screwdriver, it is characterised in that: be fitted into including shell (5), inside the shell (5) in being equipped with Shell (4), and the magnet (1) of ring structure is fixedly connected on the left of inner casing (4), and be fixed with shell outside magnet (1) (5), it is fitted into and is equipped with spring (2) between the inner casing (4) and shell (5), and be fixedly connected with convex cap (3) below spring (2), It is convex structure below the convex cap (3), and inner casing (4) upper interior offers the groove knot coincideing with convex cap (3) shape Structure, and convex cap (3) is embedded in inside the groove structure of inner casing (4), and convex cap (3) bottom is connected with screwdriver (6), described Screwdriver (6), which runs through, is entrenched in magnet (1) and inner casing (4) inside.

2. the dedicated magnetic head of a kind of screwdriver according to claim 1, it is characterised in that: the length of the magnet (1) is not Less than the difference of the length of both shell (5) and inner casing (4).

3. the dedicated magnetic head of a kind of screwdriver according to claim 1, it is characterised in that: convex cap (3) bottom is half Chondritic, and spring (2) be free state when, convex cap (3) bottom protrudes from inner casing (4) inner wall at least 3MM.

4. the dedicated magnetic head of a kind of screwdriver according to claim 1, it is characterised in that: the inner casing (4) and magnet (1) Inside is cylindrical hole structure, and inner casing (4) and magnet (1) inside diameter are equal to hexagonal prisms knot in the middle part of screwdriver (6) The circumscribed circle diameter of structure.

5. the dedicated magnetic head of a kind of screwdriver according to claim 1, it is characterised in that: the shell (5) is metal material Matter, and be annular concave-convex shape structure outside shell (5).