TWM576090U - Replaceable screwdriver - Google Patents

Abstract

A screwdriver consisting of a grip, a magnetic body and a rod. The grip has a passage opening at the front end of the grip allowing the magnetic body to be placed in the passage of the grip. The rod body has a metal insertion end, and the magnetic body can suck the insertion end when the rod body enters the passage of the grip. In this way, the magnetic body is mounted on the grip and exerts a magnetic attraction force on the rod body, thereby preventing the rod body from easily leaving the grip and replacing the appropriate rod body.

Description

Replaceable screwdriver

This creation relates to the technical field of tools, and in particular to a replaceable screwdriver.

Known screwdrivers typically have a grip that encases a portion of a shaft. The rod body is a solid cylinder which protrudes in a radial direction with a pair of flat portions at the cover of the rod body by the grip. The flat portion prevents the grip from rotating around the rod body, but receives the torque (or rotational force) of the grip, so that an operating portion provided at the exposed end of the rod body can move synchronously (or in the same direction) with the grip. Achieve the purpose of locking or loosening a screw.

In fact, the head of the screw is recessed into a hole of a shape such as a cross, a cross, a hexagon or a star, and the operation portion that does not conform to the shape is rejected, and only the screwdriver having the same shape is received. Although preparing a set of screwdrivers with differently shaped operating parts facilitates the locking or unscrewing operation, it is inconvenient to carry.

In order to solve the problem of inconvenience of the group of screwdrivers, some people think of a single grip with a combination of multiple rods, each rod has a certain shape of the operation portion, enough to lock or loosen most of the screws.

However, the flat portion of each rod remains, resulting in the open end of the grip having to form a pair of narrow side grooves, each side groove guiding the opposite flat portion into the depth of the inside of the grip, both blocking the grip Rotation around the shaft and the transfer of the torque (or rotational force) of the grip to the flat portion achieves the purpose of synchronous (or co-directional) movement of the shaft with the grip.

In view of this, the main purpose of the screwdriver provided by the creator of this case is to use a simple magnetic structure to complete the replaceable effect of the rod combined with the grip to avoid easy separation between the two.

Due to the above object, the screwdriver of the present invention comprises: a grip, a magnetic body and a rod body. The grip has a passage opening at the front end of the grip allowing the magnetic body to be placed in the passage of the grip. The rod body has a metal insertion end that attracts the insertion end when the rod body enters the passage of the grip.

In this way, the present invention uses a rod-incorporated grip to form a screwdriver, which is mounted on the grip and exerts a magnetic attraction force on the rod body, thereby preventing the rod body from easily leaving the grip and replacing the appropriate rod body.

In order to make the above objects, features and advantages of the present invention more comprehensible, one or more preferred embodiments are described in detail with the accompanying drawings.

10‧‧‧ Tools

11‧‧‧ grip

12‧‧‧ front end

121‧‧‧large diameter section

122‧‧‧ shoulder

123‧‧‧ corner slot

124‧‧‧ bottom

125‧‧‧Small diameter section

126‧‧‧Assembly Department

13‧‧‧End

14‧‧‧ passage

141‧‧‧ openings

15‧‧‧Magnetic body

151‧‧‧Base

152‧‧ ‧ room

20‧‧‧ rod body

21‧‧‧Insert

22‧‧‧Exposed end

23‧‧‧Multi-angle

24, 241‧‧‧ Operation Department

25‧‧‧ neck

30‧‧‧ Fixed seat

32‧‧‧ corner column

34‧‧‧ front hole

36‧‧‧ rear hole

40‧‧‧ ring body

42‧‧‧Extension

44‧‧‧The Department of the Fall

Figures 1 and 2 are an exploded view and a cross-sectional view of the first embodiment of the tool.

Figures 3 and 4 are an exploded view and a cross-sectional view of the second embodiment of the tool.

The first embodiment of the drawing tool 10 of Figs. 1 and 2 is for explaining a specific structure in which a grip 11 is combined with a rod 20 to constitute a screwdriver. The grip 11 is capable of operating synchronous (or co-directional) movement of the shaft 20, and the rod 20 can also be removed from the grip 11, so that the tool 10 (i.e., the screwdriver) has the potential to be used interchangeably.

The grip 11 is made of plastic, rubber or other high molecular polymer and has the characteristics of being non-conductive or non-magnetic. One of the two ends defining the grip 11 is the front end 12, and the other end is regarded as the trailing end 13. A contour is formed from the closed tail end 13 to the front end 12 to facilitate a user to grasp the periphery of the grip 11, and the operating tool 10 is twisted at an angle. In the figure, the front end 12 of the grip 11 is stepped and has an opening 141 formed in the end surface. The opening 141 is an entrance and exit of a passage 14, allowing the rod 20 to enter or exit the interior of the grip 11. Since the passage 14 is a hexagonal hole formed inside the grip 11, the opening 141 is also hexagonal.

A magnetic body 15 inside the passage 14 determines the depth of the rod 20 into the interior of the grip 11. In the present embodiment, the magnetic body 15 is a permanent magnet, and the permanent magnet is enclosed by the grip 11 and fixed, and only one side facing the opening 141 is not covered by the grip 11. In some embodiments, the magnetic body 15 is entirely enclosed by the grip 11, and the magnetic suction force does not affect the allowable range of the present creation.

The rod body 20 is made of metal, one of its two ends being defined as the insertion end 21 and the other end being regarded as the exposed end 22. The distance from the insertion end 21 to the exposed end 22 is equal to the length of the rod body 20. Adjacent to the insertion end 21, the rod body 20 is a polygonal section 23 which is a hexagonal cylinder conforming to the shape of the passage 14 or the opening 141. The lever body 20 has an operating portion 24 adjacent to the exposed end 22, and the operating portion 24 has a functional shape of a cross, and the operating portion 24 is coupled to the polygonal section 23 via a neck portion 25. In the figure, the neck portion 25 is a thin cylinder having a diameter smaller than the diagonal distance of the polygonal section 23.

In some embodiments, the operational portion 24 can be in the shape of a word, a meter, a star, a hexagon, or a sleeve. Of course, the neck portion 25 is discarded, and the multi-angle segment 23 and the operation portion 24 are directly integrated, which is also within the allowable range of the present creation.

In use, the polygonal section 23 enters the depth of the passage 14 through the opening 141 of the grip 11 until the insertion end 21 is blocked by the magnetic body 15. At this moment, the end face of the insertion end 21 is sucked by the magnetic body 15 enough to counter the gravity generated by the shaft 20 receiving the gravity of the core, thereby preventing the rod body 20 from being easily dropped or leaving the grip 11. Therefore, the linear distance of the rod 20 from the exposed end 22 to the end 13 of the grip 11 It is equivalent to the total length of the entire tool 10 (ie the screwdriver).

When the user grips the grip 11 to rotate, the wall surface of the passage 14 acts on the corresponding side of the polygonal section 23, driving the rod 20 to move synchronously (or in the same direction) with the grip 11, and the operating portion 24 drives the screw (Fig. Performing a locking or unscrewing operation.

The second embodiment of the drawing tool 10 of Figs. 3 and 4 is substantially identical in structure to the first embodiment, with the difference that, first, the grip 11 has an assembly portion 126. In the direction from the front end 12 to the rear end 13, the assembly portion 126 is composed of a large diameter section 121, an angular groove 123 and a small diameter section 125 which are in communication. Wherein, the corner groove 123 is a hexagonal groove, and the diagonal distance is smaller than the diameter of the large diameter section 121, but larger than the diameter of the small diameter section 125. Therefore, the large diameter section 121 and the corner groove 123 form a circle 122 which is like an annular plane. The small diameter section 125 is a circular groove that is trapped in the center of the bottom surface 124 of the corner groove 123 for fixing a base 151. The base 151 is a circular container having a chamber 152 for embedding the magnetic body 15. When the outer circumferential surface of the base 151 and the small diameter section 125 are brought into a pressing action, the magnetic body 15 is equivalent to being wrapped by the grip 11 and fixed.

Next, a ring body 40 forms an extension 42 along the axial direction. The extension 42 is outwardly hexagonal and has a diagonal distance substantially equal to the largest diameter of the ring 40, thereby forming six drop portions 44, each of which is present at the edge of the extension 42 to the outside of the ring 40. Between the circumferential surfaces. Moreover, the passage 14 extends through the ring body 40 and the extension portion 42 in the axial direction, so that both ends of the passage 14 are openings 141.

Furthermore, the tool 10 (i.e., the screwdriver) has a plurality of fixing seats 30 which are round and extend in the axial direction on the one side of the fixing base 30 by a certain length of the corner post 32. A front hole 34 is formed in the fixing seat 30, and the front hole 34 has a shape equal to the outer contour of the extending portion 42 and communicates with a rear hole 36 penetrating the corner post 32. The rear aperture 36 is round as the ring 40 and the diameters of the two are equal.

The extension 42 passes through the front aperture 34 of the mount 30, and the loop body 40 is attached to the rear aperture 36 of the corner post 32 until the drop portion 44 is blocked. The ring body 40 maintains a tight coupling relationship with the rear aperture 36 of the corner post 32 (or the extension section 42 and the front aperture 34 of the mount 30) that partially extends beyond the end face of the mount 30.

When the fixing base 30 and the ring body 40 are placed into the assembly portion 126 of the grip 11, the fixing seat 30 penetrates the large diameter section 121 until the shoulder 122 blocks the end surface of the fixing seat 30. At this point, the corner post 32 enters the angular groove 123 of the shape conforming to the end surface of the base 151 so that the opening 141 of the passage 14 can appear at the front end 12 of the grip 11.

When assembled, the polygonal section 23 of the rod 20 is also passed through the opening 141 of the grip 11 into the depth of the passage 14 until the insertion end 21 is blocked by the magnetic body 15. Therefore, the magnetic body 15 sucks the end face of the insertion end 21, preventing the rod body 20 from easily leaving the grip 11.

When the user grips the grip 11 to rotate, the wall of the corner groove 123 pushes the corresponding plane of the corner post 32, and the kinetic energy of the grip 11 is transmitted to the extension 42 through the wall surface of the front hole 34, and the multi-angle is applied via the wall surface of the passage 14. The corresponding side of the segment 23 urges the rod body 20 to move synchronously (or in the same direction) with the grip 11, and the operating portion 241 can be used to drive the screw (not shown) to perform the locking or unscrewing operation.

In addition, the operation portion 241 is a functional shape of a word, and is adjacent to the exposed end 22 of the rod body 20.

Claims (5)

A replaceable screwdriver includes: a grip (11) having a passage (14), an opening (141) of the passage (14) at a front end (12) of the grip (11); a rod (20) , having a metal insertion end (21), the insertion end (21) enters the passage (14) of the grip (11) with the rod body (20); and a magnetic body (15), which is in the grip (11) Inside the channel (14), the magnetic body (15) can suck the rod body (20) into the insertion end (21) of the channel (14). The replaceable screwdriver of claim 1, wherein the passage (14) of the grip (11) is a hexagonal hole having a hexagonal opening (141); the rod (20) has a The polygonal section (23) conforming to the channel (14) is made of metal and adjacent to the insertion end (21). The replaceable screwdriver of claim 1 or 2, wherein the magnetic body (15) is a permanent magnet. An alternative screwdriver as described in claim 3, wherein the permanent magnet is enclosed by the grip (11) and is stationary. An alternative screwdriver as claimed in claim 3, wherein the permanent magnet is fixed in a passage (14) of the grip (11) by a base (151).