CN113070832B

CN113070832B - Magnetic sleeve

Info

Publication number: CN113070832B
Application number: CN202010010531.4A
Authority: CN
Inventors: 陈哲豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2022-08-02
Anticipated expiration: 2040-01-06
Also published as: CN113070832A

Abstract

The invention discloses a magnetic sleeve, which is mainly characterized in that an installation hole is formed by encircling by taking a datum point as a center, at least one clamping surface is formed on the periphery of the installation hole, two intersection points are formed between the clamping surface and the periphery of the mounting hole, when the mounting hole is provided with a clamping surface, the diameter of the magnetic part is equal to the distance from the periphery of the mounting hole to the clamping surface through the datum point, when the mounting hole is provided with at least two clamping surfaces, the radius of the magnetic part is equal to the distance from the datum point to a clamping surface of the magnetic part, so that when the magnetic part is arranged, the periphery of the magnetic part is tightly pressed by the clamping surface, and a gap is formed between the magnetic part and the mounting hole, the magnetic attraction piece is arranged in the mounting hole, so that air in the mounting hole can be smoothly discharged outwards, the problem that the magnetic attraction piece is crushed due to extrusion when being arranged is effectively avoided, the gap is limited to the minimum space, and the magnetic attraction piece is firmly and stably positioned.

Description

Magnetic sleeve

Technical Field

The invention relates to a sleeve design, in particular to a magnetic sleeve.

Background

The sleeve is generally used for assembling and disassembling locking components such as bolts, nuts and screws, and is commonly used in building construction, automobile maintenance, furniture assembly and the like, but in order to quickly perform the locking operation of the locking component, avoid excessive shaking of the locking component in the locking process and solve the defects that a user needs to assist in positioning the locking component by hand in the locking process when the locking component is long in length in the past, a magnetic sleeve is developed by manufacturers so as to assist in fixing the locking component by using the magnetism of the magnetic sleeve.

As shown in fig. 1A and 1B, a conventional magnetic sleeve 1 includes a sleeve body 11 and a magnetic member 12 disposed in the sleeve body 11; wherein, the sleeve body 11 comprises a sleeve section 111, an assembling section 112 opposite to the sleeve section 111, a locking hole 113 formed in the assembling section 112, and a mounting hole 114 communicated with the locking hole 113 and conforming to the size of the magnetic element 12; since the magnetic element 12 is formed by powder die-casting and sintering, and has the characteristic of hard and brittle texture, if the magnetic element 12 is installed in the installation hole 114 by direct pressing, it is easy to cause that the air in the installation hole 114 cannot be discharged outwards, so that the air in the installation hole 114 is pressed to generate a reaction force to push the magnetic element 12, and further the magnetic element 12 is pressed to be broken, therefore, a shielding element 13 with soft material is usually coated outside the magnetic element 12, and a plurality of grooves 131 are formed around the shielding element 13, so that the air in the installation hole 114 can be discharged outwards through the grooves 131 without pressing the magnetic element 12 during the installation of the magnetic element 12, but the installation of the shielding element 13 not only increases the additional cost, but also the magnetic element 12 must be installed in the shielding element 13 in advance, so that the subsequent installation operation can be carried out, the whole processing flow is increased, and the economic benefit is not met.

In view of the above, another manufacturer has developed a magnetic sleeve 2, as shown in fig. 2A and 2B, the magnetic sleeve 2 includes a sleeve body 21 and a magnetic member 22 disposed inside the sleeve body 21; the socket body 21 includes a coupling section 211, an assembling section 212 opposite to the coupling section 211, a locking hole 213 formed in the assembling section 212, and a mounting hole 214 communicating with the locking hole 213, wherein the mounting hole 214 is formed by assembling six abutting surfaces 2141, and each abutting surface 2141 extends tangentially along the periphery of the magnetic member 22 and is connected to the adjacent abutting surface 2141, so that when the magnetic member 22 is installed in the mounting hole 214, the magnetic member 22 is engaged by the abutting surfaces 2141 and forms a gap with the mounting hole 214, thereby facilitating the air in the mounting hole 214 to be discharged outwards.

However, after practical use, it is found that the abutting surfaces 2141 of the mounting hole 214 need to be precisely matched with the magnetic member 22 to enable the magnetic member 22 to be just clamped and limited by the abutting surfaces 2141, however, the six abutting surfaces 2141 on the mounting hole 214 are formed by direct punch forming, which is easy to produce micro-size variation in the punch forming process, and the magnetic member 22 cannot be clamped by the abutting surfaces 2141 during installation due to the dimensional tolerance of the magnetic member 22, so that the magnetic member 22 cannot be stably positioned and loose; if the size of the magnetic member 22 is increased so that the size of the magnetic member 22 is slightly larger than the size of the mounting hole 214, the magnetic member 22 is tightly abutted by the abutting surfaces 2141, which easily causes the abutting surfaces 2141 to excessively contact and wear the magnetic member 22 during the installation of the magnetic member 22, and moreover, the gap formed between the magnetic member 22 and the abutting surfaces 2141 of the mounting hole 214 after the installation is too large, so that the magnetic member 22 is in large-area contact with the outside air to accelerate oxidation, which not only causes the magnetic property of the magnetic member 22 to be rapidly attenuated, but also affects the service life of the magnetic sleeve 2, and the excessively large gap is also easy to store a large amount of metal dust, and further indirectly affects the exhibition of the magnetic attraction effect of the magnetic member 22; therefore, although the conventional magnetic socket 2 improves the problem of adding the protection component 13 to the previous conventional magnetic socket 1, the precise matching between the abutting surfaces 2141 and the magnetic component 22 is still required, which leads to the disadvantages of increased processing difficulty and increased production cost.

Disclosure of Invention

Therefore, an object of the present invention is to provide a magnetic sleeve, which effectively avoids the magnetic member from being crushed by being pressed during installation, and simultaneously limits the gap between the installation hole and the periphery of the magnetic member to a minimum space, so as to stably position the magnetic member.

Therefore, the magnetic sleeve comprises a sleeve body and a magnetic part arranged in the sleeve body; the sleeve body comprises a sleeving section, an assembling section opposite to the sleeving section, a locking hole formed in the assembling section and a mounting hole communicated with the locking hole, wherein the mounting hole is formed by surrounding by taking a datum point as a center, at least one clamping surface is formed inwards on the periphery of the mounting hole, and two intersection points are formed between the clamping surface and the periphery of the mounting hole; when the mounting hole is provided with a clamping surface, the diameter of the magnetic part is equal to the distance from the periphery of the mounting hole to the clamping surface through the datum point, the joint surface between the two intersection points is arranged in an arc shape, when the mounting hole is provided with at least two clamping surfaces, the radius of the magnetic part is equal to the distance from the datum point to one clamping surface, and the joint surface between any two clamping surfaces is arranged in an arc shape; therefore, when the magnetic part is installed, the magnetic part is abutted and limited by the clamping surface and matched with the periphery of the magnetic part and the mounting hole to generate a gap for air discharge, and the gap is limited to the minimum space, so that the magnetic part is effectively prevented from being extruded and broken when being installed, meanwhile, metal chips are prevented from being accumulated in the gap to influence the display of the magnetic attraction effect of the magnetic part, and the magnetic part is stably positioned.

Drawings

FIG. 1A is a perspective view of a known magnetic sleeve;

FIG. 1B is an end view of a known magnetic sleeve;

FIG. 2A is a perspective view of another known magnetic sleeve;

FIG. 2B is an end view of another known magnetic sleeve;

FIG. 3 is a perspective view of a first preferred embodiment of the present invention;

FIG. 4 is an end view of the first preferred embodiment;

FIG. 5 is another end view of the first preferred embodiment;

FIG. 6 is a schematic view of the first preferred embodiment;

FIG. 7 is an end view of a second preferred embodiment of the invention;

FIG. 8 is another end view of the second preferred embodiment;

FIG. 9 is an end view of the third preferred embodiment of the present invention;

FIG. 10 is an end view of the fourth preferred embodiment of the present invention;

figure 11 is an end view of a fifth preferred embodiment of the present invention.

Description of the symbols:

the following are known:

magnetic sleeve

Sleeve body

Magnetic part

A guard

111

Assembling section

Locking hole

Mounting hole

A groove

Magnetic sleeve

A sleeve body

Magnetic part 22

211

Assembling section

213

214

2141. against the top surface

The invention comprises the following steps:

magnetic sleeve

A sleeve body

Magnetic part

311

Assembling section

A locking hole

Mounting hole

315

A contact surface

Diameter of magnetic member

Radius of magnetic attraction piece

314d. distance from the periphery of the mounting hole to the clamping surface through the datum point

315D

Reference point

Point of intersection p

P1

Locking assembly

Detailed Description

These and other aspects, features and advantages of the present invention will become apparent from the following detailed description of preferred embodiments, which is to be read in connection with the accompanying drawings.

As shown in fig. 3 and 4, in the first preferred embodiment of the magnetic sleeve 3 of the present invention, the magnetic sleeve 3 includes a sleeve body 31 and a magnetic member 32 disposed inside the sleeve body 31; the sleeve body 31 includes a sleeve section 311, an assembling section 312 opposite to the sleeve section 311, a locking hole 313 formed in the assembling section 312, and an installation hole 314 communicating with the locking hole 313, wherein the installation hole 314 is surrounded by a reference point L as a center, and further, a locking surface 315 is recessed inward on the periphery of the installation hole 314, and the locking surface 315 and the periphery of the installation hole 314 form two intersection points P, and a joint surface P1 between the two intersection points P is arranged in an arc shape, as shown in fig. 4, a diameter 32D of the magnetic attraction element 32 is equal to a distance 314D from the periphery of the installation hole 314 to the center point of the locking surface 315 through the reference point L, so that when the magnetic attraction element 32 is accommodated in the installation hole 314, the magnetic attraction element 32 is tightly pressed by the locking surface 315, and a gap is formed between the magnetic attraction element 32 and the periphery of the installation hole 314, as shown in fig. 5.

As shown in fig. 4 and 5, when the magnetic member 32 is installed, an acting force is applied to the magnetic member 32 to push the magnetic member 32 to move toward the mounting hole 314, and at this time, the diameter 32D of the magnetic member 32 is equal to the distance 314D from the periphery of the mounting hole 314 to the central point of the locking surface 315 through the reference point L, so that the size of the magnetic member 32 is slightly smaller than the size of the mounting hole 314, and the data difference between the size of the magnetic member 32 and the size of the mounting hole 314 is very small, so as to limit the gap between the periphery of the mounting hole 314 and the magnetic member 32 to a minimum space, so that when the magnetic member 32 is installed in the mounting hole 314, the air in the mounting hole 314 can be smoothly discharged outwards through the gap, thereby not only effectively avoiding the problem that the magnetic member 32 is crushed during installation, but also reducing the gap to the minimum space, avoid the metal fillings to store up more to and reduce this magnetism and inhale the area of piece 32 and outside air contact, and then slow down this magnetism and inhale the speed of piece 32 oxidation, promote the demonstration of this magnetism suction effect of piece 32 of inhaling even more, in addition, this clamping face 315 is the straight setting and more effectively tightly supports this magnetism and inhale the piece 32 periphery, in order to reach the effect of this magnetism of firm location piece 32.

As shown in fig. 6, after the magnetic member 32 is stably positioned in the mounting hole 314, a user can sleeve a handle (not shown) on the sleeve portion 311 and sleeve the locking hole 313 on a locking member 4, so as to assemble or disassemble the locking member 4 through the magnetic sleeve 3, and in addition, the magnetic member 32 of the magnetic sleeve 3 is magnetic to effectively position the locking member 4, thereby not only effectively preventing the locking member 4 from excessively shaking during the locking process, but also avoiding the disadvantage that the user needs to fix the locking member 4 with hands, so that the assembly or disassembly of the locking member 4 can be rapidly performed.

As shown in fig. 7 and 8, the second preferred embodiment of the present invention still includes the components described in the first embodiment, and its purpose and efficacy are the same as those of the first embodiment, which are not described herein again, but the present embodiment particularly includes: two clamping surfaces 315 are formed inward on the periphery of the mounting hole 314, and the abutting surface 3151 between the two clamping surfaces 315 is disposed in an arc shape, and the radius 32R of the magnetic element 32 is equal to the distance 315D from the reference point L to the center point of one clamping surface 315, so that the air in the mounting hole 314 can be discharged outward through the gap formed between the periphery of the magnetic element 32 and the mounting hole 314, so as to greatly avoid the magnetic element 32 from being crushed when being pressed during installation, and meanwhile, the clamping surfaces 315 are matched to tightly abut against the periphery of the magnetic element 32, so as to stably position the magnetic element 32, of course, the periphery of the mounting hole 314 can also be formed inward with three clamping surfaces 315, that is, as shown in fig. 9 of the third preferred embodiment of the present invention, four clamping surfaces 315 can also be formed inward on the periphery of the mounting hole 314, that is shown in fig. 10 of the fourth preferred embodiment of the present invention, or six clamping surfaces 315 can be formed inward on the periphery of the mounting hole 314, as shown in fig. 11 of the fifth preferred embodiment of the present invention, the magnetic attraction piece 32 can be greatly and stably positioned by increasing the number of the engaging surfaces 315.

To sum up the above, the magnetic sleeve of the present invention has at least one engaging surface formed inward through the periphery of the mounting hole, and two intersecting points are formed between the engaging surface and the periphery of the mounting hole, when the mounting hole has one engaging surface, the diameter of the magnetic member is equal to the distance from the periphery of the mounting hole to the engaging surface through the reference point, and the joint surface between the two intersecting points is arc-shaped, and when the mounting hole has at least two engaging surfaces, the radius of the magnetic member is equal to the distance from the reference point to one engaging surface, and the joint surface between any two engaging surfaces is arc-shaped, so that when the magnetic member is mounted in the mounting hole, the periphery of the magnetic member and the mounting hole generate a gap for air to exhaust, and the gap is limited to a minimum space, thereby preventing metal chips from accumulating in the gap to affect the display of the magnetic attraction effect of the magnetic member, and reducing the contact area between the magnetic member and the outside air, further, the magnetic attraction piece is slowed down in oxidation speed, and in addition, the clamping surface is matched to effectively and tightly abut against the magnetic attraction piece, so that the magnetic attraction piece is stably positioned.

However, the above description is only for the purpose of illustrating the preferred embodiments of the present invention, and should not be taken as limiting the scope of the invention, i.e., the invention is intended to cover all the modifications and equivalents of the claims and their equivalents.

Claims

1. A magnetic sleeve is characterized by comprising a sleeve body and a magnetic part arranged in the sleeve body; the sleeve body comprises a sleeving section, an assembling section opposite to the sleeving section, a locking hole formed in the assembling section and a mounting hole communicated with the locking hole and used for the magnetic part to be arranged, the mounting hole is surrounded by taking a datum point as a center, a clamping surface is formed inwards on the periphery of the mounting hole, two intersection points are formed on the clamping surface and the periphery of the mounting hole, and the joint surface between the two intersection points is arc-shaped; in addition, the diameter of the magnetic part is equal to the distance from the periphery of the mounting hole to the clamping surface through the datum point.

2. A magnetic sleeve is characterized by comprising a sleeve body and a magnetic part arranged in the sleeve body; the sleeve body comprises a sleeving section, an assembling section opposite to the sleeving section, a locking hole formed in the assembling section and a mounting hole communicated with the locking hole and used for the magnetic part to be arranged, the mounting hole is surrounded by taking a datum point as a center, at least two clamping surfaces are formed inwards on the periphery of the mounting hole, two intersection points are formed between each clamping surface and the periphery of the mounting hole, and meanwhile, the connecting surface between any two clamping surfaces is arc-shaped; in addition, the radius of the magnetic part is equal to the distance from the datum point to one clamping surface of the magnetic part.