Patent Application
20210205047
The present invention relates to the technical field of medical instruments, and specifically, to a medical dental grinding apparatus.
A brace, also known as an orthodontic brace or a dental brace, is an apparatus used in orthodontics, is configured to align teeth to an appropriate occlusal position, and for improving malocclusions, including underbites, overbites, maxillary crossbites, open bites, crooked teeth or various other flaws of the teeth and jaw. The purpose of the brace is cosmetic or structural adjustment of the teeth. The brace is generally used in conjunction with other orthodontic apparatuses to widen a palate or a lower jaw and to produce a space between the teeth, or to change the appearance of the teeth and jaws. The existing brace types generally may be divided into: conventional steel braces, lingual braces (invisible braces), ceramic braces, braces without braces, self-ligating braces (steel self-ligating and ceramic self-ligating), and the like, where the steel braces are most widely used due to high cost performance. However, during use of the steel braces, the steel braces are generally secured in cooperation with steel wires, but because a notch of the steel wire is too sharp and is difficult to process, when the steel wire is used in the oral cavity, it is very easy to hurt soft tissue inside an oral cavity and cause certain harm to the oral cavity.
Therefore, to solve the problem, the invention of a medical dental grinding apparatus for grinding a metal brace or a main steel wire notch has a positive significance. Moreover, at present, such a medical dental grinding apparatus has not been reported.
The purpose of the present invention is to provide a medical dental grinding apparatus for solving the problems above, so that the problem of oral soft tissue injury caused by a too sharp notch of a metal brace or steel wire is solved, and the problem of secondary injury of soft tissue inside an oral cavity is avoided by grinding the notch.
To achieve the purpose above, the present invention provides the following technical solution: a medical dental grinding apparatus, including an apparatus body, where the interior of the apparatus body is of a hollow structure, an upper end surface of the apparatus body is symmetrically provided with two holes, and a lower end surface is designed as an opening; an air pipeline, a clamping mechanism, and a grinding mechanism are provided in the apparatus body; a clamping port of the clamping mechanism extends out of the apparatus body through the opening of a lower end of the apparatus body; the grinding mechanism is located on the opening of the lower end inside the apparatus body; the air pipeline includes an air inlet pipeline, an air outlet pipeline, and a U-shaped connection pipeline; lower ports of the air inlet pipeline and the air outlet pipeline are respectively fixedly connected to two ports of the U-shaped connection pipeline, and upper ports respectively penetrate through a hole on the upper end surface of the apparatus body to extend out of the apparatus body; an upper port of the air outlet pipeline is provided with an external thread and a silencer is threadedly connected to the upper port of the air outlet pipeline; a plane where the air pipeline is located is perpendicular to a plane where the clamping mechanism is located; the grinding mechanism includes a turbine fan rotatably provided inside the U-shaped connection pipeline and a plurality of grinding heads in transmission connection with the turbine fan; the grinding heads are all located below the U-shaped connection pipeline; and when the clamping mechanism clamps a notch part to be ground, the clamping port thereof corresponds to a position of the grinding head.
The silencer includes an inner pipeline and an outer pipeline; the inner pipeline and the outer pipeline are integrally formed; the inner pipeline includes an air inlet I and a pipeline I; the outer pipeline includes an air inlet II, a pipeline II, and an air outlet; the pipeline I is inserted into the pipeline II through the air inlet II; a plurality of air holes are provided on the pipeline I, and the interior of the inner pipeline is communicated with the interior of the outer pipeline through the plurality of air holes; an outer diameter of the pipeline I is adapted to an inner diameter of the air inlet II, and an inner diameter of the air inlet I is larger than that of the air inlet II; an internal thread is provided on the air inlet I, and is adapted to the external thread at the upper port of the air outlet pipeline.
The clamping mechanism includes a clamping part and a movable part fixedly connected to the clamping part; the clamping part includes a clamping body I, a clamping body II, and a hinge shaft; the hinge shaft penetrates through one end of the clamping body I and one end of the clamping body II, and both ends of the hinge shaft are fixed to an inner wall of the apparatus body; the movable part includes a movable rod I and a movable rod II; a lower end of the movable rod I is fixedly connected to the clamping body I, and a lower end of the movable rod II is fixedly connected to the clamping body II; push rods penetrating through and extending out of the apparatus body are both fixedly connected to upper ends of the movable rod I and the movable rod II; and the movable rod I is elastically connected to the movable rod II by means of a spring.
A bump is provided at one end of the clamping body I connected to the hinge shaft, and a groove adapted to the bump is provided at one end of the clamping body II connected to the hinge shaft; the bump is provided with a through hole I, and two sidewalls of the groove are correspondingly provided with through holes II; when the clamping body I and the clamping body II are mounted in a matching mode, the through hole I and the through holes II are coaxial, the hinge shaft penetrates through the through hole I and the through holes II, and both ends of the hinge shaft are fixed to the inner wall of the apparatus body; limiting blocks are fixedly provided on the hinge shaft and are located on two sides of the groove on the clamping body II; and a diameter of the limiting block is larger than that of the through hole II.
A port at one end of the clamping body I away from the hinge shaft and a port at one end of the clamping body II away from the hinge shaft are both arc-shaped; an elastomer is provided on an arc-shaped inner side of the port, and is a sponge or rubber; the spring under a natural state enables the clamping body I and the clamping body II to be close to each other; the clamping body I and the clamping body II are both arc-shaped and are annular when the clamping body I and the clamping body II are closed; the clamping body I and the clamping body II are symmetrically arranged; and when the clamping body I and the clamping body II are closed, the ports, away from the hinge shaft, of the clamping body I and the clamping body II are closed to form an elliptical or circular through hole.
The hinge shaft is located in a U-shaped opening of the U-shaped connection pipeline, and one end of the clamping body I and one end of the clamping body II that are away from the hinge shaft are located below the U-shaped connection pipeline.
The grinding mechanism includes the turbine fan, a gear transmission assembly, and the plurality of grinding heads; the turbine fan is rotatably provided on the inner bottom of the U-shaped connection pipeline, a main rotating shaft is connected to a lower portion of the turbine fan, and a lower end of the main rotating shaft penetrates through the U-shaped connection pipeline to be connected to the gear transmission assembly; the gear transmission assembly includes a gear I, two gears II meshed with the gear I and uniformly distributed along a peripheral side of the gear I, two bevel gears I, and two bevel gears II fixed in the apparatus body by means of fixing rods and respectively meshed with the bevel gears I; an upper end of the gear I is connected to the main rotating shaft, a rotating rod is fixedly connected to a lower end, and a grinding head I is fixedly mounted at a bottom end of the rotating rod, is a concave grinding head, and is provided with a dust-storage hole; lower ends of the gears II are both connected to the bevel gears I by means of rotating shafts; the bevel gears I are meshed with the bevel gears II; the bevel gear II has an end rotatably connected to the fixing rod fixed in the apparatus body, and the other end fixedly connected to a grinding head rod; a top end of the grinding head rod is provided with a grinding head II, a radius of a top end of the grinding head II is smaller than a root radius thereof, and the top end of the grinding head II is provided with a dust-storage hole; and the grinding head II is located 0.2-0.5 mm below the grinding head I.
A central axis of the rotating rod is parallel to that of the rotating shaft, and an included angle of 60-80° is formed between the central axis of the rotating shaft and a central axis of the corresponding grinding head rod.
Compared with the prior art, the beneficial effects of the present invention are as follows: the medical dental grinding apparatus is provided; the turbine fan is driven by high-pressure air entering the air pipeline to rotate, so that power is provided for the gear transmission assembly to drive the grinding head to work, and a hidden danger of electric leakage caused by using an electric apparatus in a fragile oral environment is avoided; a steel wire is fixed by means of the clamping mechanism during use of the apparatus of the present invention, so that the grinding safety is ensured, and precise grinding is implemented; the concave grinding head I and the plurality of grinding heads II may effectively remove a sharp cross section on the notch of the steel wire in different directions, so that oral health of a user is protected; when an airflow flows out through the air outlet pipeline, the airflow needs to flow into the interior of the outer pipeline through the air holes uniformly distributed on the pipeline I, the configuration of the air holes implements a turbulent effect on a flow direction of the airflow entering the pipeline I, and the airflow is prevented from rushing, so that noise is greatly reduced. The present invention is simple in structure, high in maneuverability, and suitable for grinding a notch of a metal brace or main steel wire in an oral cavity.
1—apparatus body; 2—air pipeline; 21—air inlet pipeline; 22—air outlet pipeline; 23—U-shaped connection pipeline; 3—clamping mechanism; 31—clamping body I; 32—clamping body II; 33—hinge shaft; 331—limiting block; 34—movable rod I; 35—movable rod II; 36—push rod; 37—spring; 4—grinding mechanism; 41—turbine fan; 411—main rotating shaft; 42—gear I; 421—rotating rod; 43—gear II; 431—rotating shaft; 44—bevel gear I; 45—bevel gear II; 451—grinding head rod; 5—silencer; 51—inner pipeline; 511—air inlet I; 512—pipeline I; 52—outer pipeline; 521—air inlet II; 522—pipeline II; 523—air outlet; 6—fixing rod.
The technical solutions of the present invention are clearly and fully described below with reference to embodiments of the present invention. Apparently, the described embodiments are merely some of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without involving an inventive effort shall fall within the scope of protection of the present invention.
A medical dental grinding apparatus provided in the present invention includes, as shown in
The clamping mechanism 3 includes a clamping part and a movable part fixedly connected to the clamping part. The clamping part includes a clamping body I 31, a clamping body II 32, and a hinge shaft 33. The hinge shaft 33 penetrates through one end of the clamping body I 31 and one end of the clamping body II 32, and both ends of the hinge shaft 33 are fixed to an inner wall of the apparatus body 1. A bump is provided at one end of the clamping body I 31 connected to the hinge shaft 33, and a groove adapted to the bump is provided at one end of the clamping body II 32 connected to the hinge shaft 33. The bump is provided with a through hole I, and two sidewalls of the groove are correspondingly provided with through holes II. When the clamping body I 31 and the clamping body II 32 are mounted in a matching mode, the through hole I and the through holes II are coaxial, the hinge shaft 33 penetrates through the through hole I and the through holes II, and both ends of the hinge shaft 33 are fixed to the inner wall of the apparatus body 1. Limiting blocks 331 are fixedly provided on the hinge shaft 33, are located on two sides of the groove on the clamping body II 32, and have a function of fixing a position of the clamping mechanism, thereby preventing the clamping body I 31 and the clamping body II 32 from moving on the hinge shaft 33. A port at one end of the clamping body I 31 away from the hinge shaft 33 and a port at one end of the clamping body II 32 away from the hinge shaft 33 are both arc-shaped, the ports of the clamping body I 31 and the clamping body II 32 extend out of the apparatus body through the opening of a lower end of the apparatus body 1, and an elastomer is provided inside the arc-shaped ports and is a sponge or rubber. The clamping body I 31 and the clamping body II 32 are both arc-shaped and are annular as a whole when the clamping body I 31 and the clamping body II 32 are closed. The clamping body I 31 and the clamping body II 32 are symmetrically arranged, the arc-shaped ports, away from the hinge shaft 33, of the clamping body 131 and the clamping body II 32 are closed to form an elliptical or circular through hole, and a steel wire is fixed by means of the elastomer inside the elliptical or circular through hole, so as to ensure safety when using the apparatus. The hinge shaft 33 is located in a U-shaped opening of the U-shaped connection pipeline 23, and one end of the clamping body I 31 and one end of the clamping body II 32 that are away from the hinge shaft 33 are located below the U-shaped connection pipeline 23. The movable part includes a movable rod I 34 and a movable rod II 35, a lower end of the movable rod I 34 is fixedly connected to the clamping body I 31, and a lower end of the movable rod II 35 is fixedly connected to the clamping body II 32. Push rods 36 penetrating through and extending out of the apparatus body 1 are both fixedly connected to upper ends of the movable rod I 34 and the movable rod II 35. Middle portions of the movable rod I 34 and the movable rod II 35 are elastically connected by means of a spring 37. The spring 37 under a natural state enables the clamping body I 31 and the clamping body II 32 to be close to each other. The apparatus body 1 is held by a hand, and by pressing the push rods 36, the clamping body I 31 is separated from the clamping body II 32 for clamping the steel wire; in this case, the spring 37 is in a compressed state, after the steel wire is clamped, the push rods 36 are loosened, the spring 37 restores to the natural state, and the clamping body I 31 and the clamping body II 32 are close to each other to clamp the steel wire.
The grinding mechanism 4 includes the turbine fan 41, a gear transmission assembly, and a plurality of grinding heads. A fixing plate for fixing the grinding mechanism 4 is provided in the apparatus body 1. The turbine fan 41 is rotatably provided on the inner bottom of the U-shaped connection pipeline 23, a main rotating shaft 411 is connected to a lower portion of the turbine fan 41, and a lower end of the main rotating shaft 411 penetrates through the U-shaped connection pipeline 23 and the fixing plate to be connected to the gear transmission assembly. The gear transmission assembly includes a gear I 42, two gears II 43 meshed with the gear I 42 and uniformly distributed along a peripheral side of the gear I 42, two bevel gears I 44, and two bevel gears II 45 fixed in the apparatus body 1 by means of fixing rods 6 and respectively meshed with the bevel gears I 44. An upper end of the gear I 42 is connected to the main rotating shaft 411, a rotating rod 421 is fixedly connected to a lower end, and a grinding head I is fixedly mounted at a bottom end of the rotating rod 421, is a concave grinding head, and is provided with a dust-storage hole. Upper ends of the gears II 43 are rotatably fixed to the fixing plate, and lower ends are both connected to the bevel gears I 44 by means of rotating shafts 431. The bevel gears I 44 are meshed with the bevel gears II 45. The bevel gear II 45 has an end rotatably connected to the fixing rod 6 fixed in the apparatus body 1, and the other end fixedly connected to a grinding head rod 451. A top end of the grinding head rod 451 is provided with a grinding head II, a radius of a top end of the grinding head II is smaller than a root radius thereof, and the top end of the grinding head II is provided with a dust-storage hole. The grinding head II is located 0.2-0.5 mm below the grinding head I. A central axis of the rotating rod 421 is parallel to that of the rotating shaft 431, and an included angle of 60-80° is formed between the central axis of the rotating shaft 431 and a central axis of the corresponding grinding head rod 451. The turbine fan 41 is driven by high-pressure air to rotate, so that the gear I 42 connected to the turbine fan 41 by means of the main rotating shaft 411 operates, the operation of the gear I 42 drives the rotating rod 421 to rotate, and the grinding head I fixedly mounted at a bottom end of the rotating rod 421 starts grinding; meanwhile, the two gears II 43 meshed with the gear I 42 both start rotating, and the bevel gears I 44 connected to the lower ends of the gears II 43 by means of the rotating shaft 431 also start operating; at the same time, the bevel gears II 45 meshed with the bevel gears I 44 operate, the operation of the bevel gears II 45 drives the grinding head rod 451 fixedly connected to the bevel gears II 45 to rotate, and the grinding head II provided on the top end of the grinding head rod 451 starts grinding.
According to the present invention, during use of the medical dental grinding apparatus, the high-pressure air is introduced into the air inlet pipeline 21; the apparatus body 1 is held by a hand, and by pressing the push rods 36, the clamping body I 31 is separated from the clamping body II 32 for clamping the steel wire having a notch; in this case, the spring 37 is in a compressed state, after the steel wire is clamped, the push rods 36 are loosened, the spring 37 restores to the natural state, and the clamping body I 31 and the clamping body II 32 are close to each other to clamp the steel wire. The turbine fan 41 in the U-shaped connection pipeline 23 is driven by the high-pressure air to operate, so that the gear I 42 connected to the turbine fan 41 by means of the main rotating shaft 411 operates, the operation of the gear I 42 drives the rotating rod 421 to rotate, and the grinding head I fixedly mounted at the bottom end of the rotating rod 421 starts grinding; meanwhile, the two gears II 43 meshed with the gear I 42 both start rotating, and the bevel gears I 44 connected to the lower ends of the gears II 43 by means of the rotating shaft 431 also start operating; at the same time, the bevel gears II 45 meshed with the bevel gears I 44 operate, the operation of the bevel gears II 45 drives the grinding head rod 451 fixedly connected to the bevel gears II 45 to rotate, and the grinding head II provided at the top end of the grinding head rod 451 starts grinding. Grinding is performed on the steel wire having the notch so that the steel wire is smooth, and the problem of oral soft tissue injury caused by a too sharp notch is avoided.
Although the embodiments of the present invention are shown and described, it may be understood by a person of ordinary skill in the art that various changes, modifications, substitutions, and variations may be performed on these embodiments without departing from the principle and spirit of the present invention. The scope of protection of the present invention is defined by appended claims and equivalents thereof.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201911181473.5 | Nov 2019 | CN | national |
This application is a continuation-in-part of International Application No. PCT/CN2020/109905 filed on 19 Aug. 2020 which designated the U.S. and claims priority to Chinese Application No. CN201911181473.5 filed on 27 Nov. 2019, the entire contents of each of which are hereby incorporated by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2020/109905 | Aug 2020 | US |
| Child | 17204544 | US |
