TW201822961A - Magnetic socket for spark plug avoiding the unnecessary loss during torque transmission without destroying the structural strength of the magnetic base - Google Patents

Abstract

A magnetic socket is consisted of a socket and a magnetic base. The socket includes a force applying section; a hexagonal bore formed in the force applying section, the hexagonal bore has six inner sides and six straight grooves located at the abutment of the two adjacent inner sides; and two apertures penetrating the opposite sides of the force applying section to allow the inner sides of the hexagonal bore in connection with the outer surface of the force applying section. The magnetic base includes a magnetic ring, a hexagonal seat having an intercommunicated inner hole and an embedding slot for coupling with the magnetic ring, wherein the hexagonal seat further having six outer sides and a plurality of packing portions, each packing portion protruding from the abutment of the two adjacent outer sides; two plate-pieces designed to be integrated with the hexagonal seat and be opposed to each other with the space therebetween, wherein the surfaces of the plate-pieces are flush with the corresponding outer sides of the hexagonal seat; and two protrusions respectively protruding from the outward side of the plate-piece. When the magnetic base is inserted into the hexagonal bore, the packing portions of the hexagonal seat are matched with the straight grooves to create a packing action, so as to press the outer sides as close as possible to touch against the inner sides, and to make the protrusions of the plate-piece to be locked in the apertures of the socket. The structural strength of the magnetic base is not destroyed, and the unnecessary loss during torque transmission is avoided.

Description

   Mars plug magnetic sleeve   

This creation relates to the field of tools, in particular to a magnetic sleeve suitable for the removal and / or assembly of a spark plug.

Traditional sleeve tools do not have the function of magnetic attraction, and can also perform the disassembly or assembly of polygonal bolt heads or nuts.

The well-known sleeve structures are mostly long cylinders, which have a corner hole (usually a square hole) for connecting a square pillar of a power or hand tool such as a wrench, a post, and the like. A hexagonal hole is formed at the other end of the sleeve, which is enough to fit in the hexagonal segment of the Mars plug.

When the sleeve is rotated by an electric or manual tool, the hexagonal force is driven to rotate the spark plug with the sleeve in the same direction to complete the disassembly of the spark plug. When the sleeve is taken out, the spark plug falls from the sleeve to the ground, or even rolls down a narrow gap, which is not conducive to picking up.

Similarly, when a new Martian plug is filled in the sleeve and the sleeve is to be reversed for screwing, the Mars plug is apt to detach from the sleeve due to gravity. The Mars plug must be supported by one hand and the electric or hand tools held tight by the other hand It is very inconvenient to perform the maintenance operation smoothly.

As a result, a magnetic sleeve was put on the market and became a savior for maintenance personnel, who could quickly and easily perform the replacement and replacement of Mars.

The magnetic sleeve disclosed in the new Taiwanese Patent No. M524767 is a magnetic sleeve tightly assembled in a sleeve. The magnetic base has a magnetic ring, which is embedded in a hexagonal base. The hexagonal base has six outer sides, and each outer side is divided into two parts: a plane section and a bevel section.

When the magnetic seat is pressed against the wall surface on the inner side of the sleeve by the inclined section, the plane section is separated from the wall surface of the sleeve by a certain distance, which causes the local magnetic seat to remain suspended in the sleeve. The distance between the magnetic seat and the sleeve is a very unfavorable design or structure for torque transmission.

Although, the flat section has a raised portion for contacting the wall surface on the inside of the sleeve to prevent the magnetic seat from maintaining a suspended state inside the sleeve. However, there is still a gap between the magnetic seat and the sleeve, which fails to effectively solve the disadvantages of torque transmission loss.

Secondly, a groove is formed at the convex portion of the inclined section, allowing the inclined section to be deformed in the direction of the groove. However, the groove will destroy the structural strength of the magnetic base.

Therefore, how to improve the structural performance of the magnetic sleeve has become an urgent problem to be solved by the present invention.

In view of this, the present invention provides a new Martian plug magnetic sleeve, the main purpose of which is to adopt a corner pressing structure, so that the outer edge of the magnetic base can contact the inner wall surface of the sleeve as closely as possible without damaging the strength of the magnetic base structure. To avoid unnecessary losses during torque transmission.

Due to the achievement of the above object, the magnetic sleeve of the spark plug of the present invention includes: a sleeve including: a force applying section; a hexagonal hole formed in the force applying section, the hexagonal hole having six inner sides and six channels Straight groove, which is adjacent to the two inner edges; two holes, these holes penetrate the opposite sides of the force applying section, so that the inner edge of the hexagonal hole communicates with the appearance of the force applying section; a magnetic seat, including: a magnetic ring; A hexagonal seat with an inner hole communicating with each other and a caulking groove for combining a magnetic ring in the center of the hexagonal seat. The hexagonal seat also has six outer sides and a plurality of pressing portions, each of which bulges adjacent to the two outer sides. Two pieces, these pieces are designed to be integrated with the hexagonal seat and can be opposed to each other. The surface of the piece is flush with the corresponding outer edge of the hexagonal seat; two convex parts, each convex part protrudes from the outward facing side of the body .

When the magnetic seat is inserted into the hexagonal hole of the force application section, the pressing part of the hexagonal seat cooperates with the straight groove to produce a pressing action, supporting the outer side to face the inner side, so that the sheet body provides the force required for the convex part to catch the hole.

The sleeve also has a force receiving section, and the force receiving section and the force applying section are connected to external forces at different ends of the sleeve. The force section is a square column or a square hole.

Furthermore, the pressing portion is inclined, and has two ends of reduction and expansion. When the magnetic base is assembled with the force applying section, the expanded end is closest to the opening of the hexagonal hole, and the reduced end enters the depth of the hexagonal hole.

In addition, the inner hole of the hexagonal seat is between the insertion groove and the convex portion, allowing the sheet of the magnetic seat to enter the hexagonal hole of the force applying section before the hexagonal seat. Alternatively, the slot of the hexagonal seat is between the inner hole and the convex portion, allowing the hexagonal seat of the magnetic seat to enter the hexagonal hole of the force applying section before the sheet body.

In this way, the magnetic base of the present invention has a corner pressing structure, which does not damage the structural strength of the magnetic base, but also allows the outer side of the magnetic base to contact the inner wall surface of the sleeve as closely as possible, thereby avoiding unnecessary loss during torque transmission.

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

10‧‧‧ sleeve

11‧‧‧ inside

12‧‧‧ Forced section

13‧‧‧Straight groove

14‧‧‧force section

16‧‧‧hole

18‧‧‧Hex hole

20‧‧‧ Magnetic Block

22‧‧‧Magnetic ring

30‧‧‧ Hex Block

31‧‧‧inner hole

32‧‧‧piece

33‧‧‧ Recessed

34‧‧‧ outside

35‧‧‧ angle

36‧‧‧ Urgent Department

37‧‧‧ Reduced end

38‧‧‧ convex

39‧‧‧Expansion end

40‧‧‧Mars Plug

42‧‧‧ conductive terminal

44‧‧‧Ignition end

46‧‧‧ Hexagonal segment

48‧‧‧ bulge

Fig. 1 is an exploded view of a first embodiment of a magnetic sleeve according to the present invention.

Fig. 2 is a sectional plan view of a part of the magnetic base of Fig. 1;

FIG. 3 is a cross-sectional view of the magnetic sleeve and the spark plug of FIG. 1.

Fig. 4 is a plan view taken along line A-A in Fig. 3.

Fig. 5 is an exploded view of a second embodiment of the magnetic sleeve of the present invention.

Fig. 6 is a sectional plan view of a portion of the magnetic base of Fig. 5;

Fig. 7 is a sectional view of the magnetic sleeve combined with the spark plug of Fig. 5.

Referring to FIG. 1, a first embodiment of a magnetic sleeve is explained, which specifically consists of a sleeve 10 and a magnetic base 20.

The sleeve 10 has a force receiving section 12 and a force applying section 14. The force receiving section 12 and the force applying section 14 are at different ends of the sleeve 10. In this embodiment, the force receiving section 12 is a square hole, and can be connected to a square column of a manual or electric tool such as a wrench or a pole to receive external force to perform a locking or loosening operation. In some embodiments, the force receiving section 12 is a square post, which can be combined with a square hole of a hand or power tool such as a wrench or a post.

A hexagonal hole 18 is plunged into the force applying section 14 to a certain depth. The hexagonal hole 18 has six inner sides 11 and six straight grooves 13, and the straight grooves 13 are adjacent to the two inner sides 11. The sleeve 10 also has two holes 16 which penetrate the opposite sides of the force applying section 14 so that the inner edge 11 of the hexagonal hole 18 communicates with the outer surface of the force applying section 14.

In FIGS. 1 and 2, the magnetic base 20 includes a magnetic ring 22, a hexagonal base 30, two piece bodies 32 and two convex portions 38.

The hexagonal base 30 has an inner hole 31 and an insertion groove 33 in the center, which are in communication with each other, for the magnetic ring 22 to be combined in the insertion groove 33. The hexagonal base 30 also has six-sided outer edges 34 and a plurality of pressing portions 36. These outer edges 34 are connected together to form the outline of the hexagonal base 30. Each pressing portion 36 bulges at the abutment of the two outer edges 34. The pressing portion 36 has a reduced end 37 and an expanded end 39. From the reduced end 37 to the expanded end 39, a line interlaced with the outer edge 34 will be found. The tight part 36 is actually inclined, and there is a certain angle 35 between the two.

The sheet bodies 32 and the hexagonal base 30 are designed as a whole, and the two are opposed to each other. The surface of each sheet body 32 is flush with the corresponding outer edge 34 of the hexagonal base 30, and the required side of the sheet body 32 protrudes outward. Convex portion 38. In this embodiment, the convex portion 38 is a hemisphere.

As shown in FIGS. 3 and 4, the inner hole 31 of the hexagonal base 30 is between the recessed groove 33 and the convex portion 38, allowing the piece 32 of the magnetic base 20 to enter the hexagonal hole 18 of the force applying section 14 before the hexagonal base 30. in. In other words, the expanded end 39 (see FIG. 2) is closest to the opening of the hexagonal hole 18, and the reduced end 37 (see FIG. 2) enters the depth of the hexagonal hole 18.

When the magnetic seat 20 is inserted into the hexagonal hole 18 of the force applying section 14, the pressing portion 36 of the hexagonal seat 30 cooperates with the straight groove 13 to produce a pressing action, and supports the outer edge 34 to face the inner edge 11. The two can be in close contact. Further, the sheet body 32 itself has a force required for the convex portion 38 to catch the hole 16.

When a Mars plug 40 is removed, the conductive end 42 of the Mars plug 40 passes through the magnetic ring 22 and penetrates into the hexagonal hole 18 of the sleeve 10 until the hexagonal segment 46 of the Mars plug 40 enters the hexagonal hole 18 and abuts the magnetic seat 20. . The hexagonal segment 46 fits the structure of the inner side 11, so that the spark plug 40 rotates in the same direction as the sleeve 10 to smoothly perform the removal operation.

The magnetic ring 22 attracts the metal hexagonal section 46 and is difficult to fall, so that the ignition end 44 leaves the vehicle as the spark plug 40 is taken out. In particular, the magnetic base 20 uses the corner pressing portion 36 to press the straight groove 13 of the hexagonal hole 18, which does not damage the structural strength of the magnetic base 20, and allows the outer side 34 to contact the inner side 11 as closely as possible, avoiding torque transmission. Unnecessary losses occurred during the period.

Figures 5 to 7 disclose the second embodiment of the magnetic sleeve of the present invention. The structure of the second embodiment is substantially the same as that of the first embodiment. The differences are as follows: First, the recessed groove 33 of the hexagonal socket 30 is formed between the inner hole 31 and the convex portion 38. between. When the magnetic base 20 is inserted into the hexagonal hole 18, the hexagonal base 30 enters the hexagonal hole 18 of the force applying section 14 before the sheet body 32.

Secondly, the position of the hole 16 in the force applying section 14 is changed according to the adjustment of the assembly position of the sheet body 32 and the hexagonal base 30. In this way, the Martian plug 40 is inserted into the hexagonal hole 18 of the sleeve 10 until a raised portion 48 protruding from the outer surface of the Mars plug 40 is blocked by the end face of the force applying section 14, so that the depth of the Mars plug 40 entering the hexagonal hole 18 is determined. At the same time, the magnetic ring 22 is sleeved around the conductive end 42 to cause magnetic adsorption.

Claims (6)

    A magnetic plug for a spark plug includes: a sleeve (10) including: a force applying section (14); a hexagonal hole (18) formed in the force applying section (14), the hexagonal hole (18) There are six inner sides (11) and six straight grooves (13), the straight grooves (13) are adjacent to the two inner sides (11); two holes (16), these holes (16) run through the force application section (14) ), So that the inner edge (11) of the hexagonal hole (18) communicates with the outer surface of the force application section (14); a magnetic base (20), including: a magnetic ring (22); a hexagonal base (30) In the center, there is an inner hole (31) communicating with each other and an insert groove (33) for combining the magnetic ring (22). The hexagonal seat (30) also has six outer sides (34) and a plurality of pressing parts ( 36), each pressing portion (36) bulges at the abutment of the two outer edges (34); two pieces (32), these pieces (32) and the hexagonal seat (30) are designed to be integrated and can be opposed to each other through space, The surface of the sheet body (32) is flush with the corresponding outer edge (34) of the hexagonal base (30); two convex parts (38), each convex part (38) protrudes from the outward side of the sheet body (32); The seat (20) is plugged into the hexagonal hole (18) of the force application section (14). The pressing part (36) of the hexagonal seat (30) cooperates with the straight groove (13) to produce a pressing action and supports the outer side (34) to face Inner edge (11) so that the body (32) (16) the force required for the projection (38) caught hole.         According to the Martian plug magnetic sleeve described in item 1 of the patent application scope, wherein the sleeve (10) further has a force receiving section (12), and the force receiving section (12) and the force applying section (14) are in the sleeve (10) Different ends can be connected to external forces.         The magnetic sleeve of the Martian plug according to item 2 of the scope of the patent application, wherein the force receiving section (12) is a square pillar or a square hole.         The magnetic sleeve of the Martian plug according to item 1 of the scope of patent application, wherein the pressing portion (36) is inclined, and has a reduced end (37) and an expanded end (39); at the magnetic base (20) When assembled with the force application section (14), the expanded end (39) is closest to the opening of the hexagonal hole (18), and the reduced end (37) enters the depth of the hexagonal hole (18).         The magnetic sleeve of the Martian plug according to item 1 of the scope of patent application, wherein the inner hole (31) of the hexagonal seat (30) is between the recess (33) and the convex portion (38), and the magnetic seat (20) is allowed. ) The sheet body (32) enters the hexagonal hole (18) of the force applying section (14) before the hexagonal seat (30).         The magnetic sleeve of the Martian plug according to item 1 of the scope of patent application, wherein the recess (33) of the hexagonal seat (30) is between the inner hole (31) and the convex portion (38), and the magnetic seat (20) is allowed. ) The hexagonal seat (30) enters the hexagonal hole (18) of the force applying section (14) before the sheet body (32).