CN211890603U

CN211890603U - Screwdriver capable of quickly magnetizing and demagnetizing

Info

Publication number: CN211890603U
Application number: CN201922253586.3U
Authority: CN
Inventors: 于波; 樊长雷
Original assignee: Individual
Current assignee: Yantai Qingyuan Tools Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-11-10
Anticipated expiration: 2029-12-16

Abstract

A screwdriver capable of rapidly magnetizing and demagnetizing comprises a handle and a screwdriver handle, and is characterized in that a magnetizing device assembly is arranged, the magnetizing device assembly comprises a knob, a clamping seat, a magnet, a soft magnet and a U-shaped non-magnetic conductive body, wherein the soft magnet comprises two soft magnetic shells which are symmetrically arranged, the U-shaped non-magnetic conductive body is arranged between the two soft magnetic shells, the magnet is movably arranged in a middle cavity formed by the two soft magnetic shells and the U-shaped non-magnetic conductive body, the side wall of the magnet is respectively contacted with the side walls of the two soft magnetic shells and the U-shaped non-magnetic conductive body, the magnetic pole direction of the magnet is vertically directed to the two soft magnetic shells and the U-shaped non-magnetic conductive body, the magnetizing device assembly is arranged in the handle, the two soft magnetic shells and the U-shaped non-magnetic conductive body are respectively contacted with the top end of the screwdriver handle, and the magnet is not contacted with the, the magnetizing and demagnetizing can be freely changed, and the screwdriver is a convenient and practical novel screwdriver tool.

Description

Screwdriver capable of quickly magnetizing and demagnetizing

Technical Field

The utility model relates to a add magnetism demagnetization screwdriver fast belongs to the instrument class.

Background

The screwdriver is a common tool, two types of tools with magnetism and without magnetism are generally available on the market at present, the screwdriver with magnetism is common and used for conventional dismounting operation, and the screwdriver without magnetism is suitable for being used under special conditions (such as maintenance of precision instruments such as watches, sound boxes, circuit boards and the like).

The existing screwdriver with the magnetism is generally additionally provided with a magnetic device, for example, a magnetic head, a magnetic core, a magnetic sleeve and the like are arranged at the top end of a screwdriver handle or a screwdriver head, the screwdriver with the magnetic head or the magnetic core is basically of an integrated structure, the screwdriver is permanently magnetized and cannot demagnetize, the magnetic sleeve is additionally provided with a magnetic sleeve structure, the magnetic sleeve can be detached when not needed, the magnetic sleeve is troublesome to disassemble and assemble, and the magnetic sleeve is small in size and difficult to store and lose easily.

Because the screwdriver with the magnetism can not be randomly converted into the screwdriver without the magnetism, constructors need to prepare two sets of screwdriver tools at the same time, and the screwdriver needs to be reversed and replaced when in use, which is not very convenient.

Disclosure of Invention

The utility model aims at improving the drawback that prior art exists, provide a add magnetism demagnetization screwdriver fast.

The technical scheme of the utility model is that: a screwdriver capable of quickly magnetizing and demagnetizing comprises a handle and a screwdriver handle and is characterized in that a magnetizing device assembly is arranged, the magnetizing device assembly comprises a knob, a clamping seat, a magnet, a soft magnet and a U-shaped non-magnetic conductive body, wherein the soft magnet comprises two soft magnetic shells which are symmetrically arranged, the U-shaped non-magnetic conductive body is arranged between the two soft magnetic shells, the magnet is movably arranged in a middle cavity formed by the two soft magnetic shells and the U-shaped non-magnetic conductive body, the side wall of the magnet is respectively in contact with the side walls of the two soft magnetic shells and the U-shaped non-magnetic conductive body, the magnetic pole direction of the magnet points vertically to the two soft magnetic shells and the U-shaped non-magnetic conductive body, the top end of the magnet is provided with a groove, the knob is arranged in a central hole of the clamping seat, the knob and the clamping seat are arranged above the soft magnet, a protrusion at the bottom of the knob corresponds to the groove at the top end of the magnet, the, the magnet does not contact the top end of the handle.

The utility model discloses add the magnetism device assembly in the screwdriver handle design installation, can through the rotation of magnet and with soft magnet intermittent type contact magnetic conduction to make the screwdriver handle of a knife reach the purpose that the magnetic conduction was intermittent type, the user can select whether the screwdriver needs to take magnetism or not to take magnetism according to actual conditions, adds magnetism demagnetization free switching, and the operation is swift, is a very convenient and practical's novel screwdriver instrument.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

FIG. 2-A cross-sectional view of FIG. 1.

FIG. 3 is a sectional view taken along line B-B of FIG. 1.

FIG. 4 is a schematic structural view of the magnetizing device assembly of the present invention.

FIG. 5 is a schematic view showing the operation principle of magnetizing and demagnetizing according to the present invention (no magnetism).

FIG. 6 is a schematic diagram of the magnetizing and demagnetizing operation principle of the present invention.

FIG. 7 is another schematic diagram of the present invention.

FIG. 8-section C-C of FIG. 7.

The drawings illustrate:

the handle 1, the handle 2, the knob 3, the clamping seat 4, the magnet 5, the groove 5-1, the soft magnet 6, the soft magnetic shell 6-1, the soft magnetic shell 6-2 and the non-magnetic-conductive magnet 7U-shaped.

Detailed Description

Embodiment 1, refer to fig. 1, fig. 2, fig. 3, the utility model discloses a add magnetism demagnetization screwdriver fast, including screwdriver handle 1 and handle of a knife 2, the one end of handle of a knife 2 is installed in handle 1. A magnetizing device assembly is arranged in a handle 1, referring to figure 4, the magnetizing device assembly comprises a knob 3, a clamping seat 4, a magnet 5, a soft magnet 6, a U-shaped non-magnetic conductor 7 and the like, wherein the soft magnet 6 comprises a soft magnetic shell I6-1 and a soft magnetic shell II 6-2 which are symmetrically arranged, the U-shaped non-magnetic conductor 7 is arranged between the soft magnetic shell I6-1 and the soft magnetic shell II 6-2, the soft magnetic shell I6-1, the soft magnetic shell II 6-2 and the U-shaped non-magnetic conductor 7 form a hollow semi-surrounding structure with a hollow middle, a closed periphery and a closed bottom and an opened upper part, the magnet 5 is arranged in the hollow cavity, the side wall of the magnet 5 is respectively contacted with the side walls of the soft magnetic shell I6-1, the soft magnetic shell II 6-2 and the U-shaped non-magnetic conductor 7 when the magnetic device is installed, and the magnet 5 can rotate in the hollow cavity formed by the soft magnetic, the magnetic pole directions (N pole and S pole) of the magnet 5 vertically point to the three (see fig. 5 and 6), the top end of the magnet 5 is provided with a groove 5-1, the knob 3 is arranged in the central hole of the clamping seat 4, the knob 3 and the clamping seat 4 are arranged above the soft magnet 6, and the bulge at the bottom of the knob 3 can be clamped in the groove 5-1 at the top end of the magnet 5. The magnetizing device assembly is arranged in the handle 1 after being assembled, as shown in fig. 1 and 2, the knob 3 is exposed out of the top end of the handle 1, the bottoms of the first soft magnetic shell 6-1, the second soft magnetic shell 6-2 and the U-shaped non-magnetizer 7 are respectively contacted with the top end of the handle 2, and the magnet 5 positioned in the hollow cavity is not contacted with the top end of the handle 2.

The soft magnet 6 (including the first soft magnet shell 6-1 and the second soft magnet shell 6-2) can be made of cast iron, and the U-shaped non-magnetic conductive body 7 can be made of rubber and plastic.

The use principle is as follows: the screwdriver is magnetized or demagnetized by twisting the knob 3, as shown in fig. 5 and 6, the N pole and the S pole of the magnet 5 vertically point to the first soft magnetic shell 6-1, the second soft magnetic shell 6-2 and the U-shaped non-magnetic conductor 7, when the magnet 5 is rotated to the N pole and the S pole by twisting the knob 3 and the N pole and the S pole are opposite to the side walls of the two sides of the U-shaped non-magnetic conductor 7, the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2 on the two sides have no magnetism due to the isolation of the U-shaped non-magnetic conductor 7, and the handle 2 in contact with the bottoms of the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2 at the; when the knob 3 is twisted to rotate the magnet 5 to the N pole and the S pole which are opposite to the side walls of the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2, the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2 on the two sides are magnetized, and the tool handle 2 which is in contact with the bottoms of the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2 is magnetized.

Embodiment 2, the structure of this example is basically the same as that of embodiment 1, except that in embodiment 1, the magnetizing apparatus assembly is vertically installed with respect to the handle 1, and the knob 3 is located at the end of the handle 1, while in this embodiment, the magnetizing apparatus assembly is horizontally installed with respect to the handle 1, and the knob 3 is located at the side of the handle 1. Referring to fig. 7 and 8, when the magnetizing device assembly is horizontally arranged in the handle 1, the side walls of the first soft magnetic shell 6-1, the second soft magnetic shell 6-2 and the U-shaped non-magnet-conductive body 7 are respectively in contact with the top end of the handle 2, and the magnet 5 positioned in the hollow cavity is not in contact with the top end of the handle 2. In the same principle of use, when the knob 3 is twisted to enable the magnet 5 to rotate to enable the N pole and the S pole to be opposite to the side walls of the two sides of the U-shaped non-magnetic-conductive body 7, due to the isolation of the U-shaped non-magnetic-conductive body 7, the soft magnetic shell I6-1 and the soft magnetic shell II 6-2 on the two sides are nonmagnetic, and the knife handle 2 in contact with the side walls of the soft magnetic shell I6-1 and the soft magnetic shell II 6-2 at the moment is nonmagnetic; when the knob 3 is twisted to rotate the magnet 5 to the N pole and the S pole which are opposite to the side walls of the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2, the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2 on the two sides are magnetized, and the tool handle 2 which is in contact with the side walls of the first soft magnetic shell 6-1 and the second soft magnetic shell 6-2 is magnetized.

Claims

1. The screwdriver is characterized in that a magnetic adding device assembly is arranged, the magnetic adding device assembly comprises a knob (3), a clamping seat (4), a magnet (5), a soft magnet (6) and a U-shaped non-magnetic conductive body (7), the soft magnet (6) comprises a first soft magnetic shell (6-1) and a second soft magnetic shell (6-2) which are symmetrically arranged, the U-shaped non-magnetic conductive body (7) is arranged between the first soft magnetic shell (6-1) and the second soft magnetic shell (6-2), the magnet (5) is movably arranged in a middle cavity formed by the first soft magnetic shell (6-1), the second soft magnetic shell (6-2) and the U-shaped non-magnetic conductive body (7), the side walls of the magnet (5) and the first soft magnetic shell (6-1), the second soft magnetic shell (6-2) and the U-shaped non-magnetic conductive body (7) are respectively in contact with each other, and the magnetic pole direction of the magnet (5) is vertical to the magnetic pole direction The magnetic force is applied to the three parts, the top end of the magnet (5) is provided with a groove (5-1), the knob (3) is arranged in a central hole of the clamping seat (4), the knob (3) and the clamping seat (4) are arranged above the soft magnet (6), the bottom protrusion of the knob (3) corresponds to the groove (5-1) at the top end of the magnet (5), the magnetizing device assembly is arranged in the handle (1), the knob (3) is exposed out of the handle (1), the soft magnetic shell I (6-1), the soft magnetic shell II (6-2) and the U-shaped non-magnetizing body (7) of the magnetizing device assembly are respectively contacted with the top end of the knife handle (2), and the magnet (5) is not contacted with the top end of the knife handle (2).