Annular multipole transmission magnet
By designing snap-fit blocks with different magnetic properties and arc-shaped groove structures, the complexity of installing and disassembling ring-shaped multipole drive magnets was solved, enabling rapid installation and stable connection, and reducing production and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN HONGLIN MAGNETIC IND CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-06-12
AI Technical Summary
Existing ring-shaped multipole drive magnets are prone to being difficult to separate during installation due to strong magnetic attraction, which increases design complexity and maintenance difficulty.
The first and second magnetic blocks have opposite magnetic properties, and the snap-fit block is made of a weak magnetic material. The snap-fit structure enables quick installation and disassembly. The combination of arc groove and trapezoidal structure improves stability, and wear-resistant blocks are set on the inner side to reduce friction loss.
It enables rapid installation and removal of magnets, reduces production and maintenance difficulty, improves installation efficiency and structural stability, and extends service life.
Smart Images

Figure CN224355063U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnet-related technology, specifically a ring-shaped multipole transmission magnet. Background Technology
[0002] Ring-shaped multipole drive magnets typically refer to ring-shaped magnets with multiple magnetic poles arranged in a ring shape. They are widely used in systems that require precise control of rotation or power transmission. However, existing ring-shaped multipole drive magnets have certain defects in use. In particular, if the magnets are not placed properly before installation, they may attract each other. When the magnetic attraction is strong, it is difficult to separate the magnets if there is no effective point of force application, which may lead to operational difficulties.
[0003] To overcome the above-mentioned defects, the prior art (Chinese patent with announcement number CN218333321U, announcement date January 17, 2023) provides a ring-shaped multi-pole transmission magnet, which includes a multi-pole magnetic ring. The side wall of the multi-pole magnetic ring has an embedded ring, and the outer sheath is disposed on the outside of the multi-pole magnetic ring. The inner wall of the outer sheath is provided with an inner retaining ring that can be inserted into the embedded ring. The upper and lower ends of the outer wall of the outer sheath are provided with inclined surfaces. In this utility model, the embedded ring is provided on the side wall of the multi-pole magnetic ring, and the outer wall of the multi-pole magnetic ring is provided with an outer sheath. The inner side of the outer sheath is equipped with an inner retaining ring that can be inserted into the embedded ring. The upper and lower ends of the side wall of the outer sheath are provided with inclined surfaces. When two multi-pole magnetic rings are attracted together, an angled opening will be formed between the attraction surfaces of the two multi-pole magnetic rings under the action of the inclined surfaces at the upper and lower ends of the outer sheath. A prying device is used to separate the mutually attracted multi-pole magnetic rings by inserting it into the opening, thus avoiding the difficulty in separating attracted multi-pole magnetic rings.
[0004] Existing technology separates magnetic rings by creating an angle with the inclined surface of the outer sheath. However, in actual operation, the attraction of magnets is very strong, and the effect of the inclined surface is often insufficient to effectively overcome the attraction between magnetic rings. Especially when the magnetic force is strong, additional force may be required to pry open the equipment, which increases the complexity of operation. Furthermore, the addition of an inner ring, an inner retaining ring, and an outer sheath structure to the magnetic block makes the overall design more complex, which not only increases the difficulty of the production process but may also make subsequent maintenance more cumbersome.
[0005] To address the aforementioned issues, there is an urgent need for innovative design based on the existing ring-shaped multipole drive magnet. Therefore, we proposed that the ring-shaped multipole drive magnet can effectively solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a ring-shaped multipole transmission magnet to solve the problem mentioned in the background art. Currently, the separation of magnetic rings is achieved by creating an angle through the inclined surface of the outer sheath. However, the magnet's attraction is very strong, and the effect of the inclined surface is often insufficient to effectively overcome the attraction between the magnetic rings. Especially when the magnetic force is strong, additional force may be required to pry open the equipment, which increases the complexity of the operation. Furthermore, the addition of an inner ring, an inner retaining ring, and an outer sheath structure to the magnetic block makes the overall design more complex, which not only increases the difficulty of the production process but may also make subsequent maintenance more cumbersome.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a ring-shaped multipole transmission magnet, comprising a first magnetic block and a second magnetic block, the first magnetic block and the second magnetic block having opposite magnetic properties, a first storage groove being formed on the side end of the first magnetic block, a first locking block being installed on the side end of the first magnetic block, a second storage groove being formed on the side end of the second magnetic block, a second locking block being installed on the side end of the second magnetic block, the first locking block of the first magnetic block locking into the second storage groove of the second magnetic block, and the second locking block of the second magnetic block locking into the first storage groove of the first magnetic block, wherein the first locking block and the second locking block are made of weak magnetic material.
[0008] Preferably, the first magnetic block and the second magnetic block are arranged in two sets, and the two sets of first magnetic blocks and second magnetic blocks are connected end to end in a ring.
[0009] Preferably, a first mounting groove is provided on the side end of the first magnetic block, and a wear-resistant block is provided on the inner side of the first magnetic block.
[0010] Preferably, the first mounting groove and the second mounting groove form an arc-shaped groove.
[0011] Preferably, a second mounting groove is provided on the side end of the second magnetic block, and a wear-resistant block is provided on the inner side of the second magnetic block.
[0012] Preferably, the first latching block and the second latching block have a trapezoidal structure, the first latching block is adapted to the second storage slot, and the second latching block is adapted to the first storage slot.
[0013] Preferably, the first magnetic block and the second magnetic block have arc-shaped grooves on their inner sides, and wear-resistant blocks are provided inside the arc-shaped grooves.
[0014] Preferably, the wear-resistant block is arranged in a quarter-ring shape, and the wear-resistant block forms a ring-shaped wear-resistant structure inside the arc-shaped groove opened on the inner side of the first magnetic block and the second magnetic block.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In this annular multi-pole transmission magnet, the first locking block of the first magnetic block engages with the second storage slot of the second magnetic block, and the second locking block of the second magnetic block engages with the first storage slot of the first magnetic block. The overall structure is simple, reducing the problem of increased production difficulty due to complex design. The first and second locking blocks are made of weak magnetic material, facilitating the disassembly of the magnet later, reducing maintenance costs and difficulty. The specific details are as follows:
[0016] (1) The first locking block of the first magnetic block is inserted into the second storage slot of the second magnetic block, and the second locking block of the second magnetic block is inserted into the first storage slot of the first magnetic block. The overall structure is simple, which reduces the problem of increased production difficulty caused by complex design. The first locking block and the second locking block are made of weak magnetic material, which makes it convenient to disassemble the magnet later.
[0017] (2) The first magnetic block and the second magnetic block have different magnetic properties. Utilizing the property of different magnetic properties, the magnetic blocks will generate a magnetic force that attracts each other during installation. Without complicated tools and operations, quick installation can be achieved. The first installation groove and the second installation groove at the connection between the first magnetic block and the second magnetic block form an arc groove. The arc groove design can better adapt to the installation environment and greatly improve the installation efficiency.
[0018] (3) The first locking block of the first magnetic block is locked into the second storage slot of the second magnetic block, and the second locking block of the second magnetic block is locked into the first storage slot of the first magnetic block. Through the bidirectional locking method, a tight mechanical connection is formed between the magnetic blocks, which works in conjunction with the magnetic attraction to greatly enhance the stability of the overall structure.
[0019] (4) The first snap-fit block is adapted to the second storage slot, and the second snap-fit block is adapted to the first storage slot. The trapezoidal structure can generate a certain guiding effect during installation, which facilitates quick alignment and snap-fit. Furthermore, the trapezoidal structure has good self-locking performance after snap-fit, which further enhances the stability of the connection.
[0020] (5) The wear-resistant block forms an annular wear-resistant structure inside the arc groove opened on the inner side of the first and second magnetic blocks. The annular wear-resistant structure can effectively reduce the friction loss between the inner side of the magnet and other components during the transmission process, and extend the service life of the magnet. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;
[0023] Figure 3 This is a top view of the overall structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the structure of the first magnetic block of this utility model during disassembly;
[0025] Figure 5 This is a schematic diagram of the structure of the first magnetic block after disassembly.
[0026] Figure 6 This is a schematic diagram of the structure of the first magnetic block and the second magnetic block after disassembly.
[0027] Figure 7 This utility model Figure 6 Enlarged structural diagram at point A in the middle.
[0028] In the diagram: 1. First magnetic block; 2. First storage slot; 3. First snap-fit block; 4. First mounting slot; 5. Wear-resistant block; 6. Second magnetic block; 7. Second storage slot; 8. Second snap-fit block; 9. Second mounting slot. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Example: In this example, the first latching block 3 and the second latching block 8 are made of weak magnetic material. Weak magnetic material will not significantly interfere with the overall magnetism of the magnet, and will not be difficult to separate due to strong magnetic attraction during disassembly, facilitating subsequent disassembly of the magnet. Figures 1-7The technical solution shown includes a first magnetic block 1 and a second magnetic block 6, which have opposite magnetic properties. A first storage slot 2 is formed on the side of the first magnetic block 1, and a first locking block 3 is installed on its side. A second storage slot 7 is formed on the side of the second magnetic block 6, and a second locking block 8 is installed on its side. The first locking block 3 of the first magnetic block 1 engages with the second storage slot 7 of the second magnetic block 6, and the second locking block 8 of the second magnetic block 6 engages with the first storage slot 2 of the first magnetic block 1. The first locking block 3 and the second locking block 8 are made of weak magnetic material. Two sets of the first magnetic block 1 and the second magnetic block 6 are provided, and the two sets of the first magnetic block 1 and the second magnetic block 6 are connected end-to-end in a ring. A first mounting groove 4 is formed on the side of the first magnetic block 1. The inner side of the first magnetic block 1 is provided with a wear-resistant block 5. The first mounting groove 4 and the second mounting groove 9 form an arc-shaped groove. The second magnetic block 6 has a second mounting groove 9 on its side. The inner side of the second magnetic block 6 is provided with a wear-resistant block 5. The first snap-fit block 3 and the second snap-fit block 8 are trapezoidal in structure. The first snap-fit block 3 is adapted to the second storage groove 7, and the second snap-fit block 8 is adapted to the first storage groove 2. The inner sides of the first magnetic block 1 and the second magnetic block 6 are provided with arc-shaped grooves, and the wear-resistant block 5 is provided inside the arc-shaped grooves. The wear-resistant block 5 is arranged in a quarter ring shape. The wear-resistant block 5 forms a ring-shaped wear-resistant structure inside the arc-shaped grooves opened on the inner sides of the first magnetic block 1 and the second magnetic block 6. The first magnetic block 1 and the second magnetic block 6 have opposite magnetic properties. Utilizing the property of opposite magnetic properties, the magnetic blocks will generate a mutual magnetic attraction force during installation, without the need for complicated tools and The operation allows for rapid installation, greatly improving installation efficiency. The two sets of first magnetic blocks 1 and second magnetic blocks 6 are connected end-to-end in a ring shape. The first mounting groove 4 and the second mounting groove 9 at the connection point of the first magnetic block 1 and the second magnetic block 6 form an arc-shaped groove. The arc-shaped groove design fits the installation requirements of the ring structure, better adapting to the installation environment and facilitating the quick and precise installation of the entire ring magnet. At this time, the first locking block 3 of the first magnetic block 1 engages with the second storage groove 7 of the second magnetic block 6, and the second locking block 8 of the second magnetic block 6 engages with the first storage groove 2 of the first magnetic block 1. Through this bidirectional locking method, a tight mechanical connection is formed between the magnetic blocks, which, in conjunction with magnetic attraction, greatly enhances the stability of the overall structure and effectively prevents magnetic blocks from malfunctioning during use. The design is simple, reducing the production difficulties caused by complex designs and facilitating later maintenance. The first locking block 3 and the second locking block 8 are trapezoidal in shape. The first locking block 3 is adapted to the second storage slot 7, and the second locking block 8 is adapted to the first storage slot 2. The trapezoidal structure provides a guiding effect during installation, facilitating quick alignment and engagement. Furthermore, the trapezoidal structure has good self-locking performance after engagement, further enhancing the stability of the connection. The first magnetic block 1 and the second magnetic block 6 have arc-shaped grooves on their inner sides, and wear-resistant blocks 5 are set inside the arc-shaped grooves. The wear-resistant blocks 5 are arranged in a quarter-ring shape, thus forming a ring-shaped wear-resistant structure inside the arc-shaped grooves on the inner sides of the first magnetic block 1 and the second magnetic block 6.The annular wear-resistant structure effectively reduces frictional loss between the inner side of the magnet and other components during transmission, extending the magnet's service life. It also reduces the impact of wear-induced debris on the transmission system, ensuring transmission stability and reliability. The first locking block 3 and the second locking block 8 are made of weak magnetic material. Since weak magnetic material does not significantly interfere with the overall magnetism of the magnet, and is not difficult to separate due to strong magnetic attraction during disassembly, it facilitates subsequent disassembly, maintenance, and component replacement of the magnet, reducing maintenance costs and difficulty. Content not described in detail in this specification is prior art known to those skilled in the art.
[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A ring-shaped multipole transmission magnet, comprising a first magnetic block (1) and a second magnetic block (6), characterized in that, The first magnetic block (1) and the second magnetic block (6) have different magnetic properties. The first magnetic block (1) has a first storage slot (2) on its side and a first locking block (3) on its side. The second magnetic block (6) has a second storage slot (7) on its side and a second locking block (8) on its side. The first locking block (3) of the first magnetic block (1) is locked inside the second storage slot (7) of the second magnetic block (6), and the second locking block (8) of the second magnetic block (6) is locked inside the first storage slot (2) of the first magnetic block (1). The first locking block (3) and the second locking block (8) are made of weak magnetic material.
2. The annular multipole transmission magnet according to claim 1, characterized in that: The first magnetic block (1) and the second magnetic block (6) are arranged in two sets, and the two sets of first magnetic blocks (1) and second magnetic blocks (6) are connected end to end in a ring.
3. The annular multipole transmission magnet according to claim 1, characterized in that: The first magnetic block (1) has a first mounting groove (4) on its side end, and a wear-resistant block (5) is provided on the inner side of the first magnetic block (1).
4. A ring-shaped multipole transmission magnet according to claim 3, characterized in that: The first mounting groove (4) and the second mounting groove (9) form an arc-shaped groove.
5. A ring-shaped multipole transmission magnet according to claim 1, characterized in that: The second magnetic block (6) has a second mounting groove (9) on its side end, and a wear-resistant block (5) is provided inside the second magnetic block (6).
6. A ring-shaped multipole transmission magnet according to claim 1, characterized in that: The first snap-fit block (3) and the second snap-fit block (8) are trapezoidal in structure. The first snap-fit block (3) is adapted to the second storage slot (7), and the second snap-fit block (8) is adapted to the first storage slot (2).
7. A ring-shaped multipole transmission magnet according to claim 1, characterized in that: The first magnetic block (1) and the second magnetic block (6) have arc-shaped grooves on their inner sides, and wear-resistant blocks (5) are provided inside the arc-shaped grooves.
8. A ring-shaped multipole transmission magnet according to claim 7, characterized in that: The wear-resistant block (5) is arranged in a quarter ring shape, and the wear-resistant block (5) forms a ring-shaped wear-resistant structure inside the arc-shaped groove opened on the inner side of the first magnetic block (1) and the second magnetic block (6).