Novel longitudinal and transverse rotating magnetic conductive attraction expansion device

Abstract

The invention relates to a novel longitudinal and transverse rotating magnetic conductive attraction expansion device. The invention relates to a novel longitudinal and transverse magnetic conductive attraction expansion device, which comprises a magnetic base body, a first magnetic base, a second magnetic base, a first connecting rod, a second connecting rod and a third connecting rod, the two bases are arranged below the magnetic base body, and the opening and closing directions of the two bases are perpendicular to the magnetic attraction force directions of the first magnetic base and the second magnetic base; the first translation assembly comprises two push rods arranged at an included angle, one ends of the two push rods are rotationally connected to the first base at the same time, and the other ends of the two push rods are rotationally connected to the first magnetic base and the second magnetic base respectively; the second translation assembly comprises two push rods arranged at an included angle, one ends of the two push rods are rotationally connected to the second base simultaneously, and the other ends are rotationally connected to the first magnetic base and the second magnetic base respectively. According to the novel longitudinal and transverse rotating magnetic attraction expansion device, traditional repulsive force is replaced by magnetic attraction force, and the problems that the distance between magnets is increased and the magnetic force is sharply reduced along with expansion of a dental arch of a traditional expansion device can be solved.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a novel longitudinal and transverse transverse magnetic attraction expander. Background Technology

[0002] An arch expander is a common orthodontic appliance, typically installed in the maxilla and palate, used to push the dental arches outward, thereby increasing the arch curvature and correcting common malocclusion problems such as crowding and narrow arches. In recent years, magnetic arch expanders have been increasingly used, building upon traditional mechanical expanders. These expanders typically apply an expanding force through the repulsive force generated between magnets placed on either side of the dental arch to achieve the corrective effect.

[0003] However, existing magnetic bow expansion devices still have the following significant shortcomings: Large magnet size and poor device adaptability: Existing magnetic expanders usually rely on large magnets to obtain sufficient expansion force. However, in cases of severe narrowing of the patient's dental arch, the limited space in the oral cavity makes it difficult to place the appliance if it is too large, which seriously affects its clinical adaptability and widespread application.

[0004] Unstable repulsive force direction and unbalanced orthodontic force: Repulsive magnetic expanders exhibit significant lateral force during use, especially when the magnets are close together and the repulsive force intensifies. This lateral force can easily disrupt the device's balance, leading to device deformation, sliding rail jamming, or even expansion failure. Such unbalanced expanders not only fail to achieve uniform force application but may also cause adverse reactions such as tooth misalignment, loosening, and pain, affecting patient comfort and treatment prognosis.

[0005] Rapid force decay and lack of sustained corrective ability: As the expansion process progresses, the distance between the magnets gradually increases, and the repulsive force decays sharply, making it difficult to maintain the constant force required for effective expansion. This significantly limits the sustained effect and applicability of magnetic expansion.

[0006] Uneven expansion and poor results in the posterior region: Traditional expanders, including spiral expanders and repulsive magnetic expanders, often exhibit an "anterior-wide, posterior-narrow" expansion pattern during maxillary expansion. Due to lower resistance in the anterior segment and higher resistance in the posterior segment, the expansion force is unevenly distributed, leading to insufficient expansion in the posterior region. This is precisely the key area for clinical treatment of maxillary stenosis, making it difficult to achieve the desired orthodontic results.

[0007] In summary, existing magnetic expanders suffer from poor adaptability, insufficient mechanical stability, weak individualized adjustment capabilities, and easy attenuation of corrective force. There is an urgent need for a new type of magnetic expander that is compact in structure, has controllable force direction, strong adaptability, and high corrective efficiency to overcome the limitations of existing technologies and meet the clinical needs for precise, controllable, and safe expander treatment. Summary of the Invention

[0008] Based on this, the purpose of this invention is to provide a novel transverse-coordinated magnetic force expander that uses magnetic attraction instead of traditional repulsion, which can overcome the problem that the magnetic force of traditional expanders decreases sharply as the distance between magnets increases with the expansion of the dental arch. At the same time, by setting the direction of the magnetic force perpendicular to the direction of dental arch expansion, this novel transverse-coordinated magnetic force expander can match larger magnets to meet the requirements of greater magnetic force, allowing the magnets to move along the direction perpendicular to the direction of dental arch expansion and providing greater range of motion.

[0009] A novel transverse and longitudinal magnetic attraction expander includes: The magnetic base includes a first magnetic base and a second magnetic base, wherein the first magnetic base and the second magnetic base are attracted to each other at their closest points; A first base and a second base are provided below the magnetic base body, and the opening and closing directions of the first base and the second base are perpendicular to the magnetic attraction direction of the first magnetic base and the second magnetic base; A first translation component and a second translation component. The first translation component includes a first push rod and a second push rod arranged at an angle. One end of the first push rod and the second push rod are rotatably connected to the first base, and the other end is rotatably connected to the first magnetic base and the second magnetic base, respectively. The second translation component includes a third push rod and a fourth push rod arranged at an angle. One end of the third push rod and the fourth push rod are rotatably connected to the second base, and the other end is rotatably connected to the first magnetic base and the second magnetic base, respectively.

[0010] Furthermore, there are a first rotating shaft and a second rotating shaft. One end of the first rotating shaft is fixed to the first magnetic base, and the other end is rotatably connected to the first push rod and the third push rod. One end of the second rotating shaft is fixed to the second magnetic base, and the other end is rotatably connected to the second push rod and the fourth push rod.

[0011] Furthermore, the magnetic base also includes at least one first guide member, which is arranged parallel to the magnetic attraction direction of the first magnetic base and the second magnetic base, and both the first magnetic base and the second magnetic base are slidably connected to the first guide member.

[0012] Furthermore, the first magnetic base includes a first magnet and a first slider, wherein the first slider is fixedly disposed within the first magnet; The second magnetic base includes a second magnet and a second slider, with the second slider fixedly disposed within the second magnet; both the first slider and the second slider are slidably connected to the first guide member.

[0013] Furthermore, the first magnetic base also includes a first fixing member; the second magnetic base also includes a second fixing member; One end of the first fixing member is fixed to the first magnet, and the other end is fixed to the first rotating shaft; one end of the second fixing member is fixed to the second magnet, and the other end is fixed to the second rotating shaft.

[0014] Furthermore, the first slider has a through first shaft hole and a first fixing cavity, one end of the first rotating shaft passes through the first shaft hole, and its end is placed in the first fixing cavity; the end of the first fixing member is placed in the first fixing cavity and fixedly connected to the first rotating shaft. The second slider has a through second shaft hole and a second fixed cavity. The second rotating shaft is inserted into the second shaft hole, and its end is placed in the second fixed cavity. The end of the second fixing member is placed in the second fixed cavity and fixedly connected to the second rotating shaft.

[0015] Furthermore, both the first and second fixing members are countersunk screws.

[0016] Furthermore, the first magnetic base is also provided with a first housing covering the outside of the first magnet, the first housing being provided with a first slider groove, and the first slider being disposed in the first slider groove; The second magnetic base also has a second housing that covers the outside of the second magnet. The second housing has a second slider groove, and the second slider is disposed in the second slider groove.

[0017] Furthermore, the openings of both the first slider groove and the second slider groove are constricted.

[0018] Furthermore, a second guide is provided between the first base and the second base, and both the first base and the second base are slidably connected to the second guide.

[0019] The beneficial effects of this invention are as follows: (1) By using magnetic attraction instead of traditional repulsion, the problem of magnetic force decreasing sharply as the dental arch expands and the distance between magnets increases. By setting the direction of magnetic force perpendicular to the direction of dental arch expansion, the magnetic attraction expander can match larger magnets to meet the need for greater magnetic force. At the same time, the magnet can move along the direction perpendicular to the direction of dental arch expansion, providing more room for movement. (2) By setting up a first translation component and a second translation component that are coplanar, the first base and the second base can be subjected to more balanced forces, thus avoiding uneven forces on the teeth and causing adverse symptoms such as loose teeth and pain. (3) By setting the slider as the connection hub between the magnetic base and the spreading mechanism, it is possible to avoid damage to the magnet caused by the force on each component during structural assembly and long-term use, which would affect the magnetic attraction of the bow expander. (4) By setting up a shell and connecting columns to isolate the magnet, the protection of the magnet is improved, and it is prevented from being damaged by external forces, which would affect the magnetic attraction. (5) By designing the fastener and the rotating shaft to be inserted from the top and bottom of the magnetic base respectively for locking, the stability of the bow expander is improved. At the same time, the overall structure of the bow expander can be simplified, making the production and assembly of the product easier and subsequent maintenance easier.

[0020] To better understand and implement this invention, the following detailed description is provided in conjunction with the accompanying drawings. Attached Figure Description

[0021] Figure 1 Exploded view of a novel longitudinal and transverse transverse magnetic attraction bow expander provided in the embodiments of this application; Figure 2 A schematic diagram of the structure of a novel longitudinal and transverse transverse magnetic attraction bow expander; Figure 3 This is a top view of a novel longitudinal and transverse transverse magnetic attraction bow expander; Figure 4 Cross-section of a novel longitudinal and transverse transverse magnetic attraction expander Figure 1 ; Figure 5 This is a schematic diagram of the structure of the first and second sliders; Figure 6 Cross-section of a novel longitudinal and transverse transverse magnetic attraction expander Figure 2 .

[0022] In the diagram: 10-Magnetic base; 11-First magnetic base; 111-First magnet; 112-First slider; 1121-First shaft hole; 1122-First fixing cavity; 1123-Sliding hole; 113-First housing; 114-First fixing member; 115-First connecting post; 12-Second magnetic base; 121-Second magnet; 122-Second slider; 1221-Second shaft hole; 1222-Second fixing cavity; 123 - Second housing; 124- Second fixing member; 125- Second connecting column; 13- First guide member; 20- Spreading mechanism; 21- First base; 22- Second base; 23- First translation assembly; 231- First push rod; 232- Second push rod; 24- Second translation assembly; 241- Third push rod; 242- Fourth push rod; 25- First pivot; 251- Mounting hole; 26- Second pivot; 27- Second guide member. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] Please see Figure 1 and Figure 2 This application provides a novel transverse-coaxial magnetic arch expander with dental bands on both sides, pushing the dental arches outward. The magnetic arch expander includes a magnetic base 10 and at least one set of spreading mechanisms 20. The magnetic base 10 includes two spaced-apart magnetic seats, with their ends attracting each other. The spreading mechanism 20 includes a base and a translation component. The translation component includes at least one push rod, one end of which is rotatably connected to the base, and the other end rotatably connected to one of the magnetic seats. When the magnetic seat moves due to magnetic attraction, it causes the push rod to deflect, thereby pushing the base outward.

[0027] In some embodiments, the translation component includes a push rod. In this configuration, the magnetic force expander also includes a vertical positioning member, which includes a first vertical portion and a second vertical portion arranged vertically. The base is slidably connected to the first vertical portion, and the magnetic base is slidably connected to the second vertical portion to define the running direction of the base as perpendicular to the running direction of the magnetic base.

[0028] Preferably, the translation component includes two push rods arranged at a certain angle. One end of the two push rods is close to each other and rotatably connected to the base, while the other end is rotatably connected to two magnetic seats, so that the magnetic attraction force generated by the two magnetic seats drives the push rods to push the base to translate outward. In this arrangement, the force exerted by the push rods on the base is more balanced, making it easier to ensure that the base translates perpendicular to the direction of the magnetic attraction force.

[0029] In other embodiments, the translation assembly may also include multiple cross-pivoted push rods, and is not limited thereto.

[0030] It is understood that in some embodiments, the spreading mechanism 20 can be set as a set. In this configuration, the dental band on one side is fixed to the base, and the dental band on the other side is fixed to the magnetic base 10. The two magnetic bases generate magnetic attraction, and the two magnetic bases move closer to each other, which in turn drives the push rod to push the base outward, so as to increase the distance between the base and the magnetic base 10, thereby pushing the dental arches on both sides to expand outward.

[0031] In some other embodiments, the spreading mechanism 20 can be configured as two sets, with the opening and closing direction of the two bases perpendicular to the magnetic attraction direction of the two magnetic bases. In this configuration, the dental bands on both sides are fixed to the bases on both sides. Through the magnetic attraction generated by the two magnetic bases, the two magnetic bases move closer to each other, which in turn drives the push rod to push the two bases outwards, so that the two bases move away from each other, thereby pushing the dental arches on both sides outwards.

[0032] The novel transverse-conductive magnetic expansion device provided in this application uses magnetic attraction instead of traditional repulsion, which can effectively overcome the problem that the magnetic force of traditional magnetic expansion devices decreases sharply as the dental arch expands and the distance between the magnets increases. At the same time, by setting the direction of the magnetic force perpendicular to the direction of dental arch expansion, the magnetic expansion device can match larger magnets to meet the needs of greater magnetic force. In addition, the magnets can move along the direction perpendicular to the direction of dental arch expansion, providing a larger range of motion.

[0033] As a preferred embodiment, a novel longitudinal and transverse magnetic attraction expander includes: a magnetic base 10, a first base 21 and a second base 22 disposed below the magnetic base 10, and a first translation component 23 and a second translation component 24 for supporting the opening and closing of the first base 21 and the second base 22. The magnetic base 10 includes a first magnetic base 11 and a second magnetic base 12, with their poles attracting each other at their adjacent ends. The opening and closing directions of the first base 21 and the second base 22 are perpendicular to the magnetic attraction directions of the first magnetic base 11 and the second magnetic base 12. The first translation component 23 is connected to the magnetic base 10 and the first base 21, and is used to support the first base 21 outwards; the second translation component 24 is connected to the magnetic base 10 and the second base 22, and is used to support the second base 22 outwards.

[0034] Furthermore, the first translation component 23 includes a first push rod 231 and a second push rod 232 arranged at an angle. One end of the first push rod 231 and the second push rod 232 are rotatably connected to the first base 21, and the other end is rotatably connected to the first magnetic base 11 and the second magnetic base 12, respectively. The first magnetic base 11 and the second magnetic base 12 generate magnetic attraction force, causing the first magnetic base 11 and the second magnetic base 12 to move closer to each other, so that the angle between the first push rod 231 and the second push rod 232 becomes smaller, pushing the first base 21 away to the outside. The second translation component 24 includes a third push rod 241 and a fourth push rod 242 arranged at an angle. One end of the third push rod 241 and the fourth push rod 242 are rotatably connected to the second base 22, and the other end is rotatably connected to the first magnetic base 11 and the second magnetic base 12, respectively. The first magnetic base 11 and the second magnetic base 12 generate magnetic attraction force, causing the first magnetic base 11 and the second magnetic base 12 to move closer to each other, so that the angle between the third push rod 241 and the fourth push rod 242 becomes smaller, pushing the first base 21 away to the other side.

[0035] In a preferred embodiment, the first translation component 23 and the second translation component 24 move in the same plane, which can make the first base 21 and the second base 22 more evenly stressed, avoiding uneven stress on the teeth and causing adverse symptoms such as loose teeth and pain.

[0036] Please see Figure 1-3 Furthermore, in some embodiments, the spreading mechanism 20 further includes a first rotating shaft 25 and a second rotating shaft 26, which connect the magnetic base 10 to the first translation component 23 and the second translation component 24, thereby enabling motion control of the magnetic base 10 on the first base 21 and the second base 22. One end of the first rotating shaft 25 is fixed to the first magnetic base 11, and the other end is rotatably connected to the first push rod 231 and the third push rod 241; one end of the second rotating shaft 26 is fixed to the second magnetic base 12, and the other end is rotatably connected to the second push rod 232 and the fourth push rod 242. When the magnetic attraction of the first magnetic base 11 and the second magnetic base 12 draws them closer together, the first push rod 231 and the third push rod 241 rotate around the first pivot 25, causing the included angle between them to gradually increase; the second push rod 232 and the fourth push rod 242 rotate around the second pivot 26, causing the included angle between them to gradually increase, thereby jointly pushing the first base 21 and the second base 22 outward.

[0037] Please see Figure 4-6Furthermore, in some embodiments, the magnetic base 10 further includes at least one first guide member 13 for guiding the relative movement of the first magnetic base 11 and the second magnetic base 12, so as to ensure that the first magnetic base 11 and the second magnetic base 12 are aligned, thereby ensuring the stability of the magnetic attraction force. The first guide member 13 is arranged parallel to the magnetic attraction force direction of the first magnetic base 11 and the second magnetic base 12, and both the first magnetic base 11 and the second magnetic base 12 are slidably connected to the first guide member 13.

[0038] Specifically, in some embodiments, the first guide member 13 is a groove connecting the first magnetic base 11 and the second magnetic base 12. The first magnetic base 11 and the second magnetic base 12 are slidably disposed in the groove, and can slide relative to each other under the action of magnetic attraction.

[0039] Preferably, in this embodiment, the first guide member 13 is a slide rod, which is slidably inserted into the first magnetic base 11 and the second magnetic base 12. Under the action of magnetic attraction, the two magnetic bases slide relative to each other along the slide rod. This arrangement can effectively reduce the volume of the magnetic force expander, and the slide rod is easy to design and install, which is more conducive to ensuring the smooth sliding of the magnetic bases.

[0040] Please see Figure 1 , Figure 4 and Figure 5 Furthermore, in some embodiments, at least one second guide member 27 is provided between the first base 21 and the second base 22 to guide the movement of the first base 21 and the second base 22 and prevent misalignment or other defects during their movement. The first base 21 and the second base 22 are slidably connected to the two ends of the second guide member 27. Similarly, the second guide member 27 can be a groove, a slide rod, or other structural component used to guide the linear movement of the first base 21 and the second base 22, which will not be described in detail here.

[0041] Furthermore, in some embodiments, the first magnetic base 11 includes a first magnet 111 and a first slider 112, the first slider 112 being fixed inside the first magnet 111; the second magnetic base 12 includes a second magnet 121 and a second slider 122, the second slider 122 being fixed inside the second magnet 121; both the first slider 112 and the second slider 122 are provided with sliding holes 1123, and the first guide member 13 is slidably inserted into the two sliding holes 1123.

[0042] Please see Figure 4 and Figure 5Furthermore, the first slider 112 has a first shaft hole 1121, and the first rotating shaft 25 is inserted into the first shaft hole 1121. The second slider 122 has a second shaft hole 1221, and the second rotating shaft 26 is inserted into the second shaft hole 1221. In this embodiment, the connection between the magnet and other components is achieved by setting sliders, which helps to ensure the integrity of the magnet and avoids damage to the magnet caused by the design and assembly of the magnet and other components, thus affecting the magnetic attraction force of the magnet.

[0043] Please see Figure 4-6 Furthermore, in some embodiments, the sliding hole 1123 is configured to communicate with the first shaft hole 1121 and the second shaft hole 1221. The first rotating shaft 25 and the second rotating shaft 26 are both provided with mounting holes 251, which are coaxially arranged with the sliding hole 1123. The first guide member 13 passes through both the mounting hole 251 and the sliding hole 1123, and is connected to the magnetic base 10 and the spreading mechanism 20 through the first guide member 13 to support the spreading mechanism 20.

[0044] Furthermore, in some embodiments, the first magnetic base 11 further includes a first fixing member 114; the second magnetic base 12 further includes a second fixing member 124; one end of the first fixing member 114 is fixed to the first magnet 111, and the other end is fixed to the first rotating shaft 25; one end of the second fixing member 124 is fixed to the second magnet 121, and the other end is fixed to the second rotating shaft 26. By fixing the first fixing member 114 to the first rotating shaft 25 and the second fixing member 124 to the second rotating shaft 26, a stable connection between the upper and lower structural components of the magnetic force expander is achieved, further ensuring the operational stability of the magnetic force expander.

[0045] Specifically, in a preferred embodiment, the first slider 112 has a first fixing cavity 1122 communicating with the first shaft hole 1121. One end of the first rotating shaft 25 passes through the first shaft hole 1121, and its end is placed in the first fixing cavity 1122. The end of the first fixing member 114 protrudes from the first magnet 111 and is placed in the first fixing cavity 1122 and fixedly connected to the first rotating shaft 25. The second slider 122 has a second fixing cavity 1222 communicating with the second shaft hole 1221. The second rotating shaft 26 is inserted into the second shaft hole 1221, and its end is placed in the second fixing cavity 1222. The end of the second fixing member 124 is placed in the second fixing cavity 1222 and fixedly connected to the second rotating shaft 26. In this configuration, the force connection of each structural component is carried out within the first slider 112 and the second slider 122, further avoiding damage to the magnet.

[0046] Please see Figure 4Furthermore, the first magnetic base 11 also includes a first housing 113 and a first connecting post 115. The first housing 113 covers the outside of the first magnet 111, and the first connecting post 115 is disposed between the first fixing member 114 and the first magnet 111 to further improve the protection of the first magnet 111 and prevent it from being damaged by external forces. The second magnetic base 12 also includes a second housing 123 and a second connecting post 125. The second housing 123 covers the outside of the second magnet 121, and the second connecting post 125 is disposed between the second fixing member 124 and the second magnet 121 to further improve the protection of the second magnet 121 and prevent it from being damaged by external forces.

[0047] Furthermore, the first housing 113 is provided with a first slider groove, and the first slider 112 is disposed in the first slider groove; the second housing 123 is provided with a second slider groove, and the second slider 122 is disposed in the second slider groove. Preferably, the openings of both the first and second slider grooves are constricted, which can prevent the slider from falling out of the slider groove when the opening is facing downwards. Specifically, the first slider 112 and the second slider 122 can be inverted trapezoidal sliders, dovetail sliders, etc., which will not be described in detail here.

[0048] Furthermore, both the first connecting post 115 and the second connecting post 125 are non-circular cylindrical to ensure their positioning and prevent rotation, which could lead to loosening of the connection with the rotating shaft. Preferably, both the first fixing member 114 and the second fixing member 124 are countersunk screws, so that their ends are respectively embedded inside the first connecting post 115 and the second connecting post 125 to ensure the wearing comfort of the magnetic bow expander.

[0049] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: (1) By using magnetic attraction instead of traditional repulsion, the problem of the magnetic force of traditional expanders decreases sharply as the distance between magnets increases with the expansion of the dental arch can be overcome. By setting the direction of magnetic force perpendicular to the direction of dental arch expansion, the magnetic attraction expander can match larger magnets to meet the needs of larger magnetic force. At the same time, the magnet can move along the direction perpendicular to the direction of dental arch expansion, with more room for movement. (2) By setting up a first translation component and a second translation component that are coplanar, the first base and the second base can be subjected to more balanced forces, thus avoiding uneven forces on the teeth and causing adverse symptoms such as loose teeth and pain. (3) By setting the slider as the connection hub between the magnetic base and the spreading mechanism, it is possible to avoid damage to the magnet caused by the force on each component during structural assembly and long-term use, which would affect the magnetic attraction of the bow expander. (4) By setting up a shell and connecting columns to isolate the magnet, the protection of the magnet is improved, and it is prevented from being damaged by external forces, which would affect the magnetic attraction. (5) By designing the fastener and the rotating shaft to be inserted from the top and bottom of the magnetic base respectively for locking, the overall structure of the bow expander is simplified, which facilitates the production and assembly of the product and subsequent maintenance.

[0050] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and the present invention also intends to include these modifications and variations.

Claims

1. A novel longitudinal and transverse magnetic attraction bow expander, characterized in that, include: The magnetic base includes a first magnetic base and a second magnetic base, wherein the first magnetic base and the second magnetic base are attracted to each other at their closest points; A first base and a second base are provided below the magnetic base body, and the opening and closing directions of the first base and the second base are perpendicular to the magnetic attraction direction of the first magnetic base and the second magnetic base; A first translation component and a second translation component. The first translation component includes a first push rod and a second push rod arranged at an angle. One end of the first push rod and the second push rod are rotatably connected to the first base, and the other end is rotatably connected to the first magnetic base and the second magnetic base, respectively. The second translation component includes a third push rod and a fourth push rod arranged at an angle. One end of the third push rod and the fourth push rod are rotatably connected to the second base, and the other end is rotatably connected to the first magnetic base and the second magnetic base, respectively.

2. The novel longitudinal and transverse guiding magnetic attraction bow expander according to claim 1, characterized in that, Also includes: A first rotating shaft and a second rotating shaft, one end of the first rotating shaft is fixed to the first magnetic base, and the other end is rotatably connected to the first push rod and the third push rod; One end of the second rotating shaft is fixed to the second magnetic base, and the other end is rotatably connected to the second push rod and the fourth push rod.

3. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 2, characterized in that: The magnetic base further includes at least one first guide member, which is arranged parallel to the magnetic attraction direction of the first magnetic base and the second magnetic base, and both the first magnetic base and the second magnetic base are slidably connected to the first guide member.

4. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 3, characterized in that: The first magnetic base includes a first magnet and a first slider, wherein the first slider is fixedly disposed within the first magnet; The second magnetic base includes a second magnet and a second slider, with the second slider fixedly disposed within the second magnet; both the first slider and the second slider are slidably connected to the first guide member.

5. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 4, characterized in that: The first magnetic base further includes a first fixing member; the second magnetic base further includes a second fixing member; One end of the first fixing member is fixed to the first magnet, and the other end is fixed to the first rotating shaft; one end of the second fixing member is fixed to the second magnet, and the other end is fixed to the second rotating shaft.

6. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 5, characterized in that: The first slider has a through first shaft hole and a first fixing cavity. One end of the first rotating shaft passes through the first shaft hole, and its end is placed in the first fixing cavity. The end of the first fixing member is placed in the first fixing cavity and fixedly connected to the first rotating shaft. The second slider has a through second shaft hole and a second fixed cavity. The second rotating shaft is inserted into the second shaft hole, and its end is placed in the second fixed cavity. The end of the second fixing member is placed in the second fixed cavity and fixedly connected to the second rotating shaft.

7. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 6, characterized in that: Both the first and second fixing components are countersunk screws.

8. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 3, characterized in that: The first magnetic base is further provided with a first housing, which covers the outside of the first magnet. The first housing is provided with a first slider groove, and the first slider is disposed in the first slider groove. The second magnetic base also has a second housing that covers the outside of the second magnet. The second housing has a second slider groove, and the second slider is disposed in the second slider groove.

9. A novel longitudinal and transverse transverse magnetic attraction bow expander according to claim 8, characterized in that: Both the first slider groove and the second slider groove have constricted openings.

10. A novel longitudinal and transverse guiding magnetic attraction bow expander according to claim 1, characterized in that: A second guide is provided between the first base and the second base, and both the first base and the second base are slidably connected to the second guide.

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