CN-224225731-U - Flexible magnetic attraction locking structure

Abstract

The utility model discloses a locking position structure is inhaled to flexible magnetism, inhale the fixed band including main, vice flexible magnetism, main, vice flexible magnetism is inhaled the fixed band magnetism and is inhaled the face and set up tooth form structure, inhale face toothed dislocation looks knot and magnetism and inhale the absorption mode through the magnetism, make it fixed steadily, inhale the fixed band magnetism at main, vice flexible magnetism and inhale face end to end and be provided with circular arc curved surface transition structure, prevent that the magnetism from inhaling circumstances such as corner wander, improve magnetism and inhale locking position reliability, main, vice flexible magnetism is inhaled the fixed band and can be realized stepless regulation simultaneously, and it is reliable to inhale at the tangential magnetism of use, difficult unexpected separation appears; the structure aims at providing a firm and stable locking connection mode, and can be applied to the field of magnetic attraction fixing bands, such as civil strapping bands, medical strapping bands, magnetic attraction watchbands and the like.

Inventors

• JIANG LIQIANG
• ZHAO NINGNING
• WANG XIN
• WANG YONGJIE
• SHI ZHIPING
• CHEN HAIBO
• CAI WEI
• WANG WEI
• WANG YAOSEN
• QIN YUFEI
• LIU JIAMIN
• SHEN SENQI

Assignees

• 杭州千石科技有限公司

Dates

Publication Date

20260512

Application Date

20250508

Claims (11)

1. 1. The flexible magnetic latching structure is characterized by comprising a main flexible magnetic fixing belt and an auxiliary flexible magnetic fixing belt; The main flexible magnetic fixing belt and the auxiliary flexible magnetic fixing belt are identical in structure and are made of anisotropic samarium-iron-nitrogen composite materials, and the anisotropic samarium-iron-nitrogen composite materials comprise an anisotropic samarium-iron-nitrogen magnetic component and a flexible high polymer resin binder component; The magnetic attraction surfaces of the main flexible magnetic attraction fixing belt and the auxiliary flexible magnetic attraction fixing belt are respectively provided with tooth shapes meshed with each other, and the heads and the tails of the magnetic attraction surfaces are provided with arc curved surfaces.
2. 2. The flexible magnetic latching structure according to claim 1, wherein the tooth form is one or more of involute tooth form, circular arc tooth form, zigzag form, rectangular tooth form.
3. 3. The flexible magnetic latching structure of claim 1 wherein the anisotropic samarium-iron-nitrogen magnetic component is one or more of anisotropic samarium-iron-nitrogen, anisotropic samarium-iron-nitrogen and ferrite hybrid, and anisotropic samarium-iron-nitrogen and neodymium-iron-boron hybrid.
4. 4. The flexible magnetic latching structure according to claim 1, wherein the flexible polymer resin binder is one or more of rubber and TPE, TPU, CPE.
5. 5. The flexible magnetic latching structure according to claim 1, wherein the tooth form is spaced along the long side direction of the main flexible magnetic latching fixing band and the auxiliary flexible magnetic latching fixing band and is parallel to the short side direction.
6. 6. The flexible magnetic latching structure according to claim 1, wherein the main flexible magnetic latching strap and the auxiliary flexible magnetic latching strap are manufactured by injection molding, extrusion molding or calendaring.
7. 7. The flexible magnetic latching structure according to claim 6, wherein the primary flexible magnetic latching strap and the secondary flexible magnetic latching strap are oriented by an electromagnetic field or a permanent magnetic field during the molding process.
8. 8. The flexible magnetic latching structure according to claim 1, wherein the primary flexible magnetic latching strap and the secondary flexible magnetic latching strap are oriented in a thickness direction or in a single-sided multipolar orientation.
9. 9. The flexible magnetic latching structure of claim 8 wherein the primary and secondary flexible magnetic latching strips are single-sided magnetized after orientation with a magnetizing field greater than 1.5T.
10. 10. The flexible magnetic latching structure according to claim 9, wherein the number of single-sided magnetizing poles is 1 or more.
11. 11. The flexible magnetic latching structure of claim 1 wherein the primary and secondary flexible magnetic latching strips further comprise PU, parylene, and epoxy coating.

Description

Flexible magnetic attraction locking structure Technical Field The utility model relates to the technical field of flexible magnetic attraction locking positions, in particular to a flexible magnetic attraction locking position structure. Background The traditional fixing belt usually uses a magic tape, an elastic belt or a mechanical buckle structure, is easy to loosen in a motion state, can lose elasticity, poor adhesive force, weak adjustment freedom degree and other conditions after long-term use to influence the fixing effect, and has the conditions of weak tangential magnetic attraction, easy unexpected separation and the like. The magnetic fixing belt is adjustable in wearing length, the civil field can be used as a strapping belt, the medical field can be used as a waist protecting belt and orthopedics fixing, the 3C field can be used as a watchband and a magnetic buckle for magnetic attraction, and the magnetic fixing belt has the advantages of wide application, convenience in disassembly, good comfort and the like, and can solve the problems of weak tangential magnetic attraction, unreliable magnetic attraction and the like in magnetic attraction application. Compared with ferrite, the samarium-iron-nitrogen composite material has higher magnetic performance, which is equivalent to that of neodymium-iron-boron, the average particle size of the samarium-iron-nitrogen magnetic powder is 1-5 mu m, and the average particle size of the neodymium-iron-boron magnetic powder is 80-150 mu m, so that the magnetic device manufactured by the samarium-iron-nitrogen magnetic powder is more fine and smooth in sense and texture, and has good oxidation resistance and corrosion resistance, and therefore, the anisotropic samarium-iron-nitrogen composite material has better applicability. CN220966602U discloses a flexible magnetic watchband, the disclosed preparation process only carries out plane multipolar magnetization on the watchband, but the anisotropic samarium-iron-nitrogen material is not oriented, the performance is relatively low, that is, the magnetic performance of the anisotropic samarium-iron-nitrogen magnetic powder can not be fully exerted, the magnetic attraction of the watchband is reduced, and the use requirement of large magnetic attraction can not be met. CN216652577U discloses a line-drawing magnetic attraction waist protecting belt, which discloses a method that a third connecting belt is detachably connected through an extension belt, a first movable block and a second movable block are connected with the third connecting belt through magnetism on a metal plate, the method adopts strong magnetism to be connected with the metal plate, the flexible adjustment function is not provided, and the magnetic attraction degree of freedom is low. Disclosure of utility model Aiming at the problems of poor fixing effect, difficult tightness adjustment, weak tangential magnetic attraction and the like of the traditional fixing belt, the utility model provides a flexible magnetic attraction locking structure made of anisotropic samarium iron nitrogen and a composite material thereof, which has good tangential magnetic attraction and high degree of freedom locking capability and aims at solving the technical problems of the traditional fixing belt. The structure of the utility model is realized by the following scheme: A flexible magnetic attraction locking structure comprises a main flexible magnetic attraction fixing belt and an auxiliary flexible magnetic attraction fixing belt; The main flexible magnetic attraction fixing belt and the auxiliary flexible magnetic attraction fixing belt are both made of anisotropic samarium-iron-nitrogen composite materials, the anisotropic samarium-iron-nitrogen composite materials comprise an anisotropic samarium-iron-nitrogen magnetic component and a flexible high polymer resin binder component, and the main flexible magnetic attraction fixing belt and the auxiliary flexible magnetic attraction fixing belt are provided with magnetic attraction surfaces which are mutually attracted. The main flexible magnetic attraction fixing belt and the auxiliary flexible magnetic attraction fixing belt are structurally characterized in that the magnetic attraction surface is provided with tooth shapes, and arc curved surfaces are arranged at the head and the tail of the magnetic attraction surface. The tooth shapes of the magnetic attraction surfaces are staggered and buckled and fixed stably by a magnetic attraction adsorption mode, the head and the tail of the magnetic attraction surfaces of the main and auxiliary flexible magnetic attraction fixing belts are provided with arc curved surface transition structures, the corner warping and other conditions during magnetic attraction are prevented, the magnetic attraction locking position reliability is improved, stepless adjustment can be realized between the main flexible magnetic attraction fixing strap and the auxiliary flexible ma