Rotating magnetic field magnetic therapy device

Abstract

The utility model provides a rotating magnetic field magnetic therapy device, which comprises a rotating shaft, a shell, a driving assembly and two permanent magnets, the driving assembly is accommodated in the shell, the driving assembly is connected with a shaft body of the rotating shaft, two ends of the rotating shaft extend out of the shell, the two permanent magnets are respectively arranged at two ends of the rotating shaft, and the two permanent magnets are arranged in the shell. The driving assembly is used for driving the rotating shaft to rotate to drive the two permanent magnets to rotate. The two permanent magnets are symmetrically arranged, so that the magnetic field distribution is more uniform in the magnetic therapy process, the magnetic field intensity in the whole treatment area can be ensured to be relatively consistent, the treatment effect is optimized, and the situation that the local magnetic field is too strong or too weak is avoided.

Description

Technical Field

[0001] This utility model relates to the field of magnetic therapy devices, and in particular to a rotating magnetic field magnetic therapy device. Background Technology

[0002] Magnetotherapy is a method of treating diseases by applying magnetic fields to the human body. Magnetic fields affect the distribution of electric currents in the body, the movement of charged particles, the permeability of the muscular membrane system, and the magnetic moment orientation of biological macromolecules, thereby altering the physiological and biochemical processes of tissue cells and producing effects such as analgesia, anti-swelling, and promotion of blood and lymphatic circulation. Common methods of magnetotherapy include: static magnetotherapy, applied to acupoints and local lesions; and dynamic magnetotherapy, also known as rotating magnetotherapy or pulsating magnetotherapy, which requires a rotating magnetotherapy device. Rotating magnetotherapy devices using dynamic magnetotherapy typically have a permanent magnet mounted on the power output end of a drive motor. The motor rotates the permanent magnet, thus generating a rotating magnetic field.

[0003] Existing rotating magnetic therapy devices only have permanent magnets at the power output end of the drive motor, which results in low magnetic field utilization and uneven magnetic field distribution, thus affecting the magnetic therapy effect. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a rotating magnetic field therapy device, which aims to solve the problems of low magnetic field utilization and uneven magnetic field distribution in the existing rotating magnetic therapy device, which only sets permanent magnets at the power output end of the drive motor, thus affecting the magnetic therapy effect.

[0005] This utility model provides a rotating magnetic field therapy device, including a rotating shaft, a housing, a drive assembly, and permanent magnets. The drive assembly is housed within the housing and connected to the shaft of the rotating shaft. Both ends of the rotating shaft extend outside the housing. Two permanent magnets are provided, each disposed at one end of the rotating shaft. The drive assembly is used to drive the rotating shaft to rotate, thereby causing the two permanent magnets to rotate.

[0006] Furthermore, it also includes two covers, which are detachably connected to both ends of the outer casing, and the covers are used to cover the permanent magnet.

[0007] Furthermore, the inner wall surface of the cover is provided with a snap-fit ​​protrusion, and the outer shell is provided with a snap-fit ​​groove. The snap-fit ​​groove includes a first groove and a second groove that are interconnected. The first groove extends along the axial direction of the rotating shaft, and the second groove extends along the circumferential direction of the rotating shaft. The first groove allows the snap-fit ​​protrusion to enter the second groove along the axial direction of the rotating shaft, and the second groove is used to snap with the snap-fit ​​protrusion.

[0008] Furthermore, it also includes a shielding iron sheet and a fixing nut. The shaft body of the rotating shaft is provided with a limiting protrusion. After the end of the rotating shaft passes through the shielding iron sheet and the permanent magnet in sequence, the limiting protrusion abuts against the shielding iron sheet. The fixing nut is threadedly connected to the end of the rotating shaft to limit the position of the shielding iron sheet and the permanent magnet in the axial direction of the rotating shaft.

[0009] Furthermore, it also includes a bearing and a retaining ring. The bearing is disposed inside the housing, and the retaining ring is disposed on the rotating shaft. The side of the bearing near the drive assembly abuts against the housing, and the side away from the drive assembly abuts against the retaining ring to limit the position of the bearing in the axial direction of the rotating shaft. The rotating shaft is rotatably connected to the bearing.

[0010] Furthermore, a silicone ring is provided between the outer peripheral wall of the bearing and the inner peripheral wall of the housing.

[0011] Furthermore, a receiving groove is provided on the inner peripheral wall of the outer shell, the receiving groove being used to place the silicone ring.

[0012] Beneficial Effects: This utility model provides a rotating magnetic field therapy device, including a rotating shaft, a housing, a drive assembly, and permanent magnets. The drive assembly is housed within the housing and connected to the shaft of the rotating shaft. Both ends of the rotating shaft extend outside the housing. Two permanent magnets are provided, each positioned at one end of the rotating shaft. The drive assembly drives the rotating shaft to rotate, thereby rotating the two permanent magnets. Because the two permanent magnets in this application are symmetrically arranged, the magnetic field distribution is more uniform during the therapy process, ensuring a relatively consistent magnetic field strength throughout the treatment area, thus optimizing the therapeutic effect and avoiding situations where the local magnetic field is too strong or too weak. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the rotating magnetic field magnetic therapy device of this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the rotating magnetic field magnetic therapy device of this utility model;

[0015] Figure 3 This is a schematic diagram of the cover structure;

[0016] Figure 4 This is a schematic diagram of the outer shell structure;

[0017] Figure 5 This is a schematic diagram of the rotating shaft.

[0018] Figure 6 This is a cross-sectional view of the rotating magnetic field magnetic therapy device of this utility model.

[0019] In the diagram: 1. Rotating shaft; 11. Limiting protrusion; 2. Outer shell; 21. Snap-fit ​​groove; 211. First groove; 212. Second groove; 22. Receiving groove; 3. Drive assembly; 4. Permanent magnet; 5. Cover; 51. Snap-fit ​​protrusion; 6. Shielding iron plate; 7. Fixing nut; 8. Bearing; 9. Snap ring; 10. Silicone ring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] Please see Figures 1 to 6 This utility model provides a rotating magnetic field therapy device, including a rotating shaft 1, a housing 2, a drive assembly 3, and permanent magnets 4. The drive assembly 3 is housed inside the housing 2 and is connected to the shaft of the rotating shaft 1. Both ends of the rotating shaft 1 extend outside the housing 2. Two permanent magnets 4 are provided, and the two permanent magnets 4 are respectively provided at both ends of the rotating shaft 1. The drive assembly 3 is used to drive the rotating shaft 1 to rotate so as to drive the two permanent magnets 4 to rotate.

[0022] In this application, the drive assembly 3 includes a stator and a rotor. The stator is made of silicon steel sheets or other ferromagnetic materials to concentrate magnetic lines of force; the rotor is made of a conductive material (such as aluminum or copper), is the rotating part of the drive assembly 3, and is connected to the shaft 1. The rotor is placed inside the stator and connected to an external load via the shaft 1. The interaction (electromagnetic induction) between the rotor and the stator causes the rotor to rotate, thereby driving the shaft 1 to rotate. Of course, the drive assembly 3 can use other power components, which will not be elaborated here. The permanent magnet 4 is made of a high-coercivity permanent magnet material, such as neodymium iron boron permanent magnet, to ensure that a sufficiently strong magnetic field is generated.

[0023] When the drive assembly 3 is powered on, it begins to rotate, causing the two powerful permanent magnets 4 mounted on it to rotate synchronously. The rotation of the permanent magnets 4 generates a rotating magnetic field in the external space of the outer casing 2. By controlling the rotational speed of the drive assembly 3, the frequency of the rotating magnetic field can be precisely controlled. The rotational speed of the drive assembly 3 can be adjusted using a speed regulating device in the drive circuit.

[0024] In this application, the rotating magnetic field can generate more diverse and deeper magnetic stimulation to human tissues. Compared with a static magnetic field, the rotating magnetic field can generate varying magnetic flux within human tissues, inducing currents and thus enhancing the therapeutic effect. This magnetic therapy device uses a permanent magnet 4 to generate a magnetic field. Compared to generating a magnetic field using an electromagnetic coil, it does not require a continuous supply of a large current to maintain the magnetic field; it only needs the electrical energy required to drive the component 3, significantly reducing energy consumption. The magnetic field strength of the permanent magnet 4 itself is relatively stable and is not affected by external current fluctuations. Furthermore, through the stable driving of the component 3, the frequency and intensity of the rotating magnetic field can be stably output within the set range.

[0025] In one feasible embodiment, two covers 5 are further included, which are detachably connected to both ends of the outer casing 2, and are used to cover the permanent magnet 4. In this embodiment, the permanent magnet 4 can be replaced or maintained by removing the covers 5.

[0026] Specifically, the inner wall surface of the cover 5 is provided with a snap-fit ​​protrusion 51, and the outer shell 2 is provided with a snap-fit ​​groove 21. The snap-fit ​​groove 21 includes a first groove 211 and a second groove 212 that are interconnected. The first groove 211 extends along the axial direction of the rotating shaft 1, and the second groove 212 extends along the circumferential direction of the rotating shaft 1. The first groove 211 allows the snap-fit ​​protrusion 51 to enter the second groove 212 along the axial direction of the rotating shaft 1, and the second groove 212 is used to snap with the snap-fit ​​protrusion 51. In some other embodiments, the detachable connection between the cover 5 and the outer shell 2 can be achieved by a screw-on or threaded connection.

[0027] In one feasible embodiment, the device further includes a shielding iron plate 6 and a fixing nut 7. A limiting protrusion 11 is provided on the shaft of the rotating shaft 1. After the end of the rotating shaft 1 passes through the shielding iron plate 6 and the permanent magnet 4 in sequence, the limiting protrusion 11 abuts against the shielding iron plate 6. The fixing nut 7 is threadedly connected to the end of the rotating shaft 1 to limit the position of the shielding iron plate 6 and the permanent magnet 4 in the axial direction of the rotating shaft 1. In this embodiment, the permanent magnet 4 and the shielding iron plate 6 are prevented from detaching from the rotating shaft 1 by the cooperation of the fixing nut 7 and the limiting protrusion 11. The shielding iron plate 6 helps guide the magnetic field of the permanent magnet 4 to a specific direction or path to correspond with the treatment area. By preventing the magnetic field of the permanent magnet 4 from affecting unwanted areas (such as the drive component 3), the working efficiency and performance of the magnetic therapy device are improved.

[0028] The relative position of the permanent magnet 4 and the rotating shaft 1 in the radial direction can be fixed by key connection or interference fit connection to avoid relative rotation between the permanent magnet 4 and the rotating shaft 1 during the rotation process.

[0029] In one feasible embodiment, the bearing 8 and the retaining ring 9 are also included. The bearing 8 is disposed inside the housing 2, and the retaining ring 9 is disposed on the rotating shaft 1. The side of the bearing 8 near the drive assembly 3 abuts against the housing 2, and the side away from the drive assembly 3 abuts against the retaining ring 9 to limit the position of the bearing 8 in the axial direction of the rotating shaft 1. The rotating shaft 1 is rotatably connected to the bearing 8.

[0030] In one feasible embodiment, a silicone ring 10 is provided between the outer peripheral wall of the bearing 8 and the inner peripheral wall of the housing 2. Specifically, a receiving groove 22 is formed on the inner peripheral wall of the housing 2, and the receiving groove 22 is used to place the silicone ring 10. Due to the provision of the silicone ring 10, the vibration noise of the bearing 8 can be effectively isolated from the diffusion to the housing 2, while applying good preload to the bearing 8, effectively extending its service life.

[0031] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalent elements of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A rotating magnetic field magnetotherapy device, characterized in that: The utility model provides a kind of permanent magnet motor, including rotating shaft (1), shell (2), drive assembly (3) and permanent magnet (4), the drive assembly (3) is housed in the shell (2), the drive assembly (3) is connected with the shaft body of the rotating shaft (1), both ends of the rotating shaft (1) are extended to the outside of the shell (2), the permanent magnet (4) is provided with two, two the permanent magnet (4) is respectively arranged on both ends of the rotating shaft (1), the drive assembly (3) is used to drive the rotating shaft (1) rotation to drive two the permanent magnet (4) rotation.

2. The rotating magnetic field magnetotherapy device according to claim 1, characterized in that: It also includes two cover bodies (5), two cover bodies (5) are respectively detachably connected with both ends of the shell (2), and the cover body (5) is used to cover the permanent magnet (4).

3. The rotating magnetic field magnetotherapy device according to claim 2, characterized in that: The inner wall surface of the cover body (5) is provided with a clamping protrusion (51), and the shell (2) is provided with a clamping groove (21). The clamping groove (21) includes a first groove (211) and a second groove (212) that are in communication with each other. The first groove (211) extends along the axial direction of the rotating shaft (1), and the second groove (212) extends along the circumferential direction of the rotating shaft (1). The first groove (211) allows the clamping protrusion (51) to enter the second groove (212) along the axial direction of the rotating shaft (1), and the second groove (212) is used for clamping the clamping protrusion (51).

4. The rotating magnetic field magnetotherapy device according to claim 1, characterized in that: It also includes a shielding iron sheet (6) and a fixing nut (7). The shaft body of the rotating shaft (1) is provided with a limiting protrusion (11). After the end of the rotating shaft (1) passes through the shielding iron sheet (6) and the permanent magnet (4) in sequence, the limiting protrusion (11) abuts against the shielding iron sheet (6). The fixing nut (7) is threadedly connected with the end of the rotating shaft (1) to limit the position of the shielding iron sheet (6) and the permanent magnet (4) in the axial direction of the rotating shaft (1).

5. The rotating magnetic field magnetotherapy device according to claim 1, characterized in that: It also includes a bearing (8) and a clamping ring (9). The bearing (8) is arranged in the shell (2), and the clamping ring (9) is arranged on the rotating shaft (1). One side of the bearing (8) close to the drive assembly (3) abuts against the shell (2), and the other side of the bearing (8) away from the drive assembly (3) abuts against the clamping ring (9) to limit the position of the bearing (8) in the axial direction of the rotating shaft (1). The rotating shaft (1) is rotationally connected with the bearing (8).

6. The rotating magnetic field magnetotherapy device according to claim 5, characterized in that: A silica gel ring (10) is arranged between the outer peripheral wall of the bearing (8) and the inner peripheral wall of the shell (2).

7. The rotating magnetic field magnetotherapy device according to claim 6, characterized in that: An accommodating groove (22) is formed in the inner peripheral wall of the shell (2), and the accommodating groove (22) is used for placing the silica gel ring (10).

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