A rounded self-ligating appliance

Abstract

The present application discloses a rounded self-ligating orthodontic appliance, which includes a base plate, a bracket body fixedly arranged on the base plate, an archwire slot opened on the top of the bracket body, a cover plate slidably arranged on the bracket body through a limiting assembly for pressing the archwire slot, a tightening assembly arranged in the archwire slot for tightening the archwire, a transmission assembly arranged in the archwire slot and between the bottom of the cover plate for driving the tightening assembly to move, the tightening assembly includes a transverse plate arranged in the archwire slot, a plurality of push rods penetrating the transverse plate for tightening the archwire, a limiting plate located on the upper side of the transverse plate and fixedly arranged on the push rod, and a limiting spring arranged between the limiting plate and the transverse plate and sleeved on the push rod.

Description

Technical Field

[0001] The present invention relates to the technical field of self-ligating orthodontic appliances, and in particular to a rounded self-ligating orthodontic appliance. Background Art

[0002] In the first century AD, Roman physician Celsus taught people to use their fingers to push teeth to correct misaligned teeth, which can be regarded as the most primitive correction technique. The development of modern orthodontics began in the late 19th century and early 20th century. American scholar Angle developed orthodontics into a branch of oral medicine. In 1928, he published a paper on square wire braces, established the correction system of fixed braces, and laid the foundation for the development of modern orthodontics and correction technology. With the development of the times, the advancement of science and technology, and the improvement of manufacturing technology, more and more complex self-ligating bracket correction technologies have begun to be used in clinical practice.

[0003] At present, the self-ligating bracket widely used in domestic orthodontics is a semi-covered passive self-ligating bracket. The self-ligating bracket includes a bracket base plate, a bracket body installed on the bracket base plate, an archwire slot provided on the bracket body, and a cover body provided on the bracket body. The bracket body is provided with a slide groove perpendicular to the extension direction of the archwire slot for sliding the cover body. In orthodontic treatment, a special adhesive is usually used to fix it on the tooth surface to accommodate and fix the orthodontic archwire and transmit the correction force to the teeth, so as to achieve the effect of tooth correction. When the archwire slot is needed, the archwire is passed through the archwire slot, and the cover body is slid and closed in the archwire slot. At this time, the archwire slot will be closed, ensuring the limiting effect of the cover body on the archwire. However, when the patient uses it, the archwire is subject to the chewing of food, and it is easy to move in the archwire slot, thereby affecting the correction of the teeth. Therefore, a rounded self-ligating orthodontic appliance is needed. Summary of the invention

[0004] The present invention aims to solve one of the technical problems existing in the prior art.

[0005] The present application provides a rounded self-ligating orthodontic appliance, which includes a base plate, a bracket body fixedly arranged on the base plate, an archwire slot opened on the top of the bracket body, a cover plate slidably arranged on the bracket body through a limit assembly for pressing the archwire slot, a tightening assembly arranged in the archwire slot for tightening the archwire, a transmission assembly arranged in the archwire slot and between the bottom of the cover plate for driving the tightening assembly to move, the tightening assembly includes a transverse plate arranged in the archwire slot, a plurality of push rods penetrating the transverse plate for tightening the archwire, a limit plate located on the upper side of the transverse plate and fixedly arranged on the push rod, and a limit spring arranged between the limit plate and the transverse plate and sleeved on the push rod.

[0006] By adopting the above-mentioned scheme, the transmission assembly is used in conjunction with the jacking assembly to drive the push rod to move downward, thereby tightening the archwire in the archwire slot, which helps to prevent the archwire from moving randomly in the archwire slot and improves the stability of the archwire. By setting a limit spring and utilizing the elasticity of the limit spring, when the position of the archwire needs to be moved, the push rod is freed from the limit through the transmission assembly, and at this time the push rod automatically returns to its original position and rises under the action of the limit spring.

[0007] Furthermore, the transmission assembly includes a mounting rod fixedly arranged on the inner side wall of the archwire slot, a triangular block rotatably connected to the mounting rod and corresponding to a plurality of push rods respectively, an auxiliary plate fixedly arranged on the triangular block and abutting against the top of the push rod, an inclined column slot opened on the triangular block, a cross bar passing through adjacent inclined column slots, and a vertical rod fixedly arranged at the bottom of the cover plate and used in conjunction with the cross bar.

[0008] Furthermore, an extrusion opening is provided at the bottom of the push rod.

[0009] Furthermore, a rolling groove is provided at the bottom of the auxiliary plate, and the top of the push rod is rounded.

[0010] Furthermore, a groove is provided on the top of the bracket body, columnar slide grooves are provided on both left and right side walls of the groove, and rollover slide columns slidably connected to the columnar slide grooves are provided on both left and right ends of the cover plate.

[0011] Furthermore, an auxiliary groove is provided on the cover plate.

[0012] Furthermore, an auxiliary hole is provided on the bracket body.

[0013] Furthermore, the limiting assembly includes a nickel-titanium tube, the bottom of which is arranged on the base plate, the top of which is located in the groove, and the bottom of the cover plate is sequentially provided with a hole body 2, a transition groove, and a hole body 1. When the cover plate slides to close the archwire slot, the nickel-titanium tube enters from the hole body 1 into the transition groove, and then enters from the transition groove into the hole body 2. The nickel-titanium tube is limited in the hole body 2 to complete the closure of the archwire slot by the cover plate.

[0014] The beneficial effects of the present invention will be described in detail in the examples to make the beneficial effects more obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the specific structure of an embodiment of the present application;

[0016] Figure 2 This is a schematic diagram of the structure of the rollover sliding column in the embodiment of the present application;

[0017] Figure 3This is a schematic diagram of the structure of the nickel-titanium tube in the embodiment of the present application;

[0018] Figure 4 This is a schematic diagram of the structure of the transition groove in the embodiment of the present application;

[0019] Figure 5 It is a schematic diagram of the structure of the tightening assembly in the embodiment of the present application.

[0020] Reference numerals

[0021] 1. Base plate; 2. Bracket body; 3. Cover plate; 4. Auxiliary hole; 5. Auxiliary groove; 6. Rollover slide column; 7. Groove; 8. Column slide groove; 9. Archwire groove; 10. Nickel-titanium tube; 11. Hole body 2; 12. Hole body 1; 13. Transition groove; 14. Cross plate; 15. Extrusion port; 16. Push rod; 17. Limit plate; 18. Limit spring; 19. Triangle block; 20. Inclined column groove; 21. Cross bar; 22. Auxiliary plate; 23. Rolling groove; 24. Vertical pole; 25. Mounting pole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0023] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0024] The embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0025] Embodiment 1:

[0026] like Figure 1-5As shown, the present embodiment provides a rounded self-ligating orthodontic appliance, which includes a base plate 1, a bracket body 2 fixedly arranged on the base plate 1, an archwire slot 9 opened at the top of the bracket body 2, a cover plate 3 slidably arranged on the bracket body 2 through a limiting assembly for pressing the archwire slot 9, a tightening assembly arranged in the archwire slot 9 for tightening the archwire, a transmission assembly arranged in the archwire slot 9 and between the bottom of the cover plate 3 for driving the tightening assembly to move, the tightening assembly includes a transverse plate 14 arranged in the archwire slot 9, two push rods 16 for tightening the archwire and penetrating the transverse plate 14, a limiting plate 17 located on the upper side of the transverse plate 14 and fixedly arranged on the push rod 16, and a limiting spring 18 arranged between the limiting plate 17 and the transverse plate 14 and sleeved on the push rod 16. Through the coordinated use of the tightening assembly and the transmission assembly, the transmission assembly drives the push rod 16 to move, so that the push rod 16 moves downward, and the archwire in the archwire slot 9 is tightened, which helps to prevent the archwire from moving randomly in the archwire slot 9, thereby improving the stability of the archwire. By setting a limit spring 18 and utilizing the elasticity of the limit spring 18, when the position of the archwire needs to be moved, the push rod 16 is freed from the limit through the transmission assembly, and at this time, the push rod 16 automatically returns to its original position and rises under the action of the limit spring 18.

[0027] The transmission assembly includes a mounting rod 25 fixedly arranged on the inner side wall of the archwire slot 9, a triangular block 19 rotatably connected to the mounting rod 25 and corresponding to the two push rods 16, an auxiliary plate 22 fixedly arranged on the triangular block 19 and abutting against the top of the push rod 16, an inclined column slot 20 provided on the triangular block 19, a cross bar 21 penetrating between adjacent inclined column slots 20, and a vertical rod 24 fixedly arranged at the bottom of the cover plate 3 and used in conjunction with the cross bar 21. By setting the transmission assembly, the lifting and lowering of the push rod 16 is driven, and when the cover plate 3 is moved, the lifting and lowering of the push rod 16 can be realized. When in use, by pushing the cover plate 3, the cover plate 3 drives the vertical rod 24 to move, the vertical rod 24 contacts the cross bar 21, so that the vertical rod 24 pushes the cross bar 21 to move, and the cross bar 21 slides in two adjacent inclined column grooves 20. At this time, the triangular block 19 rotates downward on the mounting rod 25, the triangular block 19 drives the auxiliary plate 22 to move, and the auxiliary plate 22 presses the top rod 16 downward, and the top rod 16 drives the limit plate 17 to move, and at the same time the limit spring 18 is compressed, and then the bottom of the top rod 16 contacts the arch wire, so that the arch wire is compressed.

[0028] An extrusion opening 15 is provided at the bottom of the push rod 16, which helps to make the push rod 16 better press the arch wire.

[0029] A rolling groove 23 is provided at the bottom of the auxiliary plate 22, and the top of the push rod 16 is rounded, which helps to make the push rod 16 roll better on the auxiliary plate 22, so that the auxiliary plate 22 can press the push rod 16 better.

[0030] A groove 7 is provided on the top of the bracket body 2, and columnar slide grooves 8 are provided on both the left and right side walls of the groove 7. Both left and right ends of the cover sheet 3 are provided with rollover slide columns 6 slidably connected to the columnar slide grooves 8. The cooperation between the columnar slide grooves 8 and the rollover slide columns 6 plays a role of limiting and guiding the movement of the cover sheet 3, which helps to improve the movement stability of the cover sheet 3.

[0031] The cover sheet 3 is provided with an auxiliary groove 5. By providing the auxiliary groove 5, it is convenient to position the self-locking orthodontic appliance.

[0032] The bracket body 2 is provided with an auxiliary hole 4, which also facilitates the positioning of the self-ligating orthodontic appliance.

[0033] The limiting assembly includes a nickel-titanium tube 10, the bottom of which is arranged on the bottom plate 1, and the top of which is located in the groove 7. By setting the limiting assembly, the position of the cover sheet 3 is limited, and when the transmission assembly is driven, it helps the cover sheet 3 to position the position of the triangular block 19. When the cover sheet 3 closes the archwire placement slot, the cover sheet 3 is slid and closed on the archwire placement slot, and the nickel-titanium tube 10 enters the transition slot 13 from the hole body 12. With the relative displacement with the cover sheet 3, the nickel-titanium tube 10 enters the hole body 2 11 through the transition slot 13, and the nickel-titanium tube 10 will return to the natural state and be limited in the hole body 2 11. At this time, the cover sheet 3 closes the archwire placement slot and has sufficient locking force.

[0034] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0035] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A rounded self-ligating appliance, characterized in that: The invention comprises a bottom plate, a bracket body fixedly arranged on the bottom plate, an archwire slot opened on the top of the bracket body, a cover sheet slidably arranged on the bracket body through a limit assembly for pressing the archwire slot, a tightening assembly arranged in the archwire slot for tightening the archwire, a transmission assembly arranged in the archwire slot and between the bottom of the cover sheet for driving the tightening assembly to move, the tightening assembly comprises a horizontal plate arranged in the archwire slot, a plurality of push rods penetrating the horizontal plate for tightening the archwire, a limit plate located on the upper side of the horizontal plate and fixedly arranged on the push rod, and a limit spring arranged between the limit plate and the horizontal plate and sleeved on the push rod; the transmission assembly comprises a horizontal plate fixedly arranged in the archwire slot, a plurality of push rods penetrating the horizontal plate and fixedly arranged on the push rod, and a limit spring arranged between the limit plate and the horizontal plate and sleeved on the push rod. A mounting rod on the inner wall of the wire groove, a triangular block rotatably connected to the mounting rod and corresponding to several push rods respectively, an auxiliary plate fixedly arranged on the triangular block and abutting against the top of the push rod, an inclined column groove opened on the triangular block, a cross bar penetrating between adjacent inclined column grooves, and a vertical rod fixedly arranged at the bottom of the cover piece and used in conjunction with the cross bar; an extrusion port is opened at the bottom of the push rod; a rolling groove is opened at the bottom of the auxiliary plate, and the top of the push rod is rounded; a groove is opened at the top of the bracket body, and columnar slide grooves are opened on the left and right side walls in the groove, and rollover slide columns slidably connected to the columnar slide grooves are provided at both left and right ends of the cover piece.

2. A rounded self-ligating appliance according to claim 1, characterized in that: The cover sheet is provided with an auxiliary groove.

3. A rounded self-ligating appliance according to claim 2, characterized in that: An auxiliary hole is provided on the bracket body.

4. A rounded self-ligating appliance according to claim 3, characterized in that: The limiting component includes a nickel-titanium tube, the bottom of which is arranged on the bottom plate, the top of which is located in the groove, and the bottom of the cover plate is sequentially provided with a second hole body, a transition groove, and a first hole body. When the cover plate slides to close the archwire slot, the nickel-titanium tube enters from the first hole body into the transition groove, and then enters from the transition groove into the second hole body. The nickel-titanium tube is limited in the second hole body to complete the closure of the archwire slot by the cover plate.

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