Handheld tooth proximal surface automatic polishing device

Abstract

The present invention discloses a handheld tooth proximal surface automatic polishing device, which includes a "Y"-shaped clamp, a polishing sand bar arranged on the "Y"-shaped clamp, and a handle body for installing the "Y"-shaped clamp. The handle body includes a handle shell, and a swing block, a rolling bearing, an eccentric shaft, and a driving motor arranged inside the handle shell. The swing block is installed on the inner wall of the handle shell through a rolling bearing. One end of the swing block is detachably connected to the grinding head. The other end of the swing block is provided with a groove. The shaft end of the eccentric shaft is installed in the groove. The eccentric shaft is fixedly connected to the motor shaft of the driving motor. The device can be cheaply inserted into the oral cavity to perform polishing operations on the proximal surfaces of repaired teeth in different positions. It is easy to operate, can effectively reduce the doctor's work intensity, and relieve the patient's pain. The device has an adjustable grinding direction, a fast and adjustable grinding speed, and uniform movement. Compared with manual grinding, it has a better grinding effect.

Description

Technical Field

[0001] The invention belongs to the field of dental medical instruments, and in particular relates to a tooth adjacent surface polishing device. Background Art

[0002] In the field of dentistry, when tooth restoration involves adjacent surfaces, dentists need to grind and polish the adjacent surfaces of the restored teeth. The commonly used grinding tool is a polishing sand bar. When in use, the doctor holds the polishing sand bar, inserts it into the patient's mouth and places the sand bar at the position that needs to be polished, and then achieves the purpose of grinding and polishing through the reciprocating motion of the fingers. Usually, in order to achieve a good grinding effect, it is often necessary to repeatedly grind the same position. However, the space in the oral cavity is small, and it is very inconvenient for doctors (especially male doctors) to operate manually, which often leads to poor grinding effects and low efficiency, affecting the long-term prognosis of the affected teeth; at the same time, it will cause discomfort to patients and increase their pain. Summary of the invention

[0003] In view of the above-mentioned technical problems, the present application provides a handheld tooth proximal surface automatic polishing device to solve the problems of inconvenient operation, low efficiency and poor polishing effect of current manual polishing.

[0004] The technical solution adopted by the present invention is:

[0005] A handheld tooth interproximal surface automatic polishing device,

[0006] The polishing device comprises a clamping portion,

[0007] The polishing sand strip is arranged on the clamping part.

[0008] A handle body for mounting the clamping part,

[0009] The handle body includes a handle housing, and a swing block, an eccentric shaft, and a drive motor arranged inside the handle housing.

[0010] One end of the swing block is detachably connected to the grinding head, and the other end of the swing block is provided with a groove.

[0011] The shaft end of the eccentric shaft is installed in the groove, and the eccentric shaft is fixedly connected to the motor shaft of the driving motor.

[0012] The rear portion of the handle housing is provided with a power line hole, and the drive motor is connected to an external power supply through the power line.

[0013] Preferably, a rolling bearing is further provided inside the handle housing, and the swing block is mounted on the inner wall of the handle housing via the rolling bearing.

[0014] Preferably, the opening width of the groove is suitable for the outer diameter of the shaft end of the eccentric shaft, and when the eccentric shaft rotates, the shaft end of the eccentric shaft can slide freely in the groove.

[0015] Preferably, the clamping portion is a "Y"-shaped clamping piece, the "Y"-shaped clamping piece is detachably connected to the swing block via a rectangular bayonet, and the "Y"-shaped clamping piece includes a first fixing rod and a second fixing rod.

[0016] Preferably, the first fixing rod and the second fixing rod have the same structure, and both the first fixing rod and the second fixing rod are provided with strip guide holes, and the two ends of the polishing sand strip are respectively arranged in the two strip guide holes, and the two ends of the polishing sand strip are respectively fixed in the two strip guide holes by a fixing block.

[0017] Preferably, the first fixing rod and the second fixing rod have the same structure, a first opening groove is vertically arranged inwardly at the end of the first fixing rod, coaxial notches are arranged on the side walls of the first fixing rod on both sides of the first opening groove, the two notches extend toward the axis line of the first opening groove to form a fixing groove, a fixing block is placed in the fixing groove to fix the polishing sand strip, a baffle is movably arranged on the outside of the first opening groove and along the length direction of the first fixing rod, a locking piece is arranged on the side of the baffle, and a lock buckle for the locking piece is also provided on the outside of the first opening groove.

[0018] Preferably, the first fixing rod and the second fixing rod have the same structure, a second opening groove is provided on the side wall of the first fixing rod, at least two adapter grooves for placing the clamping parts are provided on the outer side wall of the first fixing rod, and first through holes are provided on the inner end surfaces of the two adapter grooves, the two adapter grooves are located on both sides of the second opening groove, and second through holes adapted to the first through holes are provided at both ends of the polishing sand strip.

[0019] Preferably, the clamping member is made of U-shaped spring steel, and a clamping protrusion is provided at at least one end of the U-shaped spring steel.

[0020] Preferably, the first opening groove has the same structure as the second opening groove, and the first opening groove is gradually tapered from the outside to the inside.

[0021] Preferably, the handle housing comprises a first handle housing and a second handle housing, the first handle housing is provided with a plurality of guide holes, and the second handle housing is provided with a plurality of guide posts.

[0022] Preferably, the number of the guide holes is the same as the number of the guide posts, and the guide holes and the guide posts are fixed by screws.

[0023] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a handheld automatic proximal surface polishing device for teeth, which is provided with a handle body that is convenient for doctors to operate, is driven by a micro-motor, and a swing block is fixed to the inner wall of the handle shell by a rolling bearing, thereby reducing the friction between the swing block and the inner wall of the handle shell. The polishing device can be inserted into the oral cavity to perform polishing operations on the proximal surfaces of repaired teeth at different positions. The operation is convenient, which effectively reduces the workload of doctors and relieves the pain of patients. Since the polishing device uses a micro-motor to drive the polishing head, the polishing speed is fast and the movement speed can be adjusted, so it has higher work efficiency and better polishing effect than manual polishing. Secondly, the present application takes into account the problem of narrow space in the oral cavity, and sets the grinding head into a "Y"-shaped structure to facilitate the operation of the grinding head, and the grinding head and the swing block are detachably connected, which is convenient for replacing the grinding head and timely disinfection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of a "Y"-shaped clamping member structure according to an embodiment;

[0027] Figure 3 It is a schematic diagram of the swing block structure;

[0028] Figure 4 It is a schematic diagram of the eccentric shaft structure;

[0029] Figure 5 This is a schematic diagram of the structure of a "Y"-shaped clamping member in the second embodiment of the present invention;

[0030] Figure 6a , 6b for Figure 5 A left side view of the first fixing member;

[0031] Figure 7 Schematic diagram of the structure of the "Y"-shaped clamping member in the third embodiment of the present invention;

[0032] Figure 8a , 8b for Figure 7 A left side view of the first fixing member;

[0033] Fig. 9 for Figure 7 A front view of the first fixing member;

[0034] Fig.10 This is a schematic diagram of the structure of the clamping member in the third embodiment of the present invention;

[0035] Fig.11 It is a schematic diagram of the structure of the polishing sand strip in the third embodiment of the present invention.

[0036] Among them, 1. first handle housing; 2. "Y" type clamping piece; 3. polishing sand strip; 4. rolling bearing; 5. swing block; 6. eccentric shaft; 7. drive motor; 8. second handle housing; 9. screw; 10. groove; 11. guide hole; 12. guide column; 13 power cord connection hole; 14. clamping piece; 1401. clamping protrusion;

[0037] 201. A first fixing rod; 202. A second fixing rod;

[0038] 2010. Strip guide hole; 2011. First opening slot; 2012. Notch; 2013. Baffle; 2014. Locking buckle; 2015. Locking piece; 2016. Second opening slot; 2017. Adapter slot; 2018. First through hole. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0042] In the description of the present invention, it should be noted that the terms "first", "second", "third", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical", etc. do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] like Figure 1 As shown, the present invention specifically discloses a handheld automatic proximal surface polishing device for teeth, which includes a "Y"-shaped clamping member 2, a polishing sand bar 3 arranged on the "Y"-shaped clamping member 2, and a handle body for installing the "Y"-shaped clamping member 2. The handle body includes a handle shell, and a swing block 5, an eccentric shaft 6, and a drive motor 7 arranged inside the handle shell. One end of the swing block 5 is detachably connected to the "Y"-shaped clamping member 2, and the other end of the swing block 5 is provided with a groove 10. The shaft end of the eccentric shaft 6 is installed in the groove 10. The eccentric shaft 6 is fixedly connected to the motor shaft of the drive motor 7. The drive motor 7 is powered by an external power supply, and the power cord enters the handle shell through the power cord connection hole 13 and is connected to the drive motor 7.

[0045] The handle housing described above is also provided with a rolling bearing 4 inside, and the swing block 5 is installed on the inner wall of the handle housing through the rolling bearing 4, which can reduce the friction between the swing block 5 and the inner wall of the handle housing during the swinging process and reduce the loss of the swing block.

[0046] The opening width of the groove 10 described above is suitable for the outer diameter of the shaft end of the eccentric shaft 6. When the eccentric shaft 6 rotates, the shaft end of the eccentric shaft 6 can slide freely in the groove 10, so that the swing block 5 swings with the movement of the eccentric shaft 6.

[0047] Embodiment 1

[0048] In order to better fix the polishing sand strip 3, the "Y"-shaped clamping member described above includes a first fixing rod 201 and a second fixing rod 202, the first fixing rod 201 and the second fixing rod 202 have the same structure, and the first fixing rod 201 and the second fixing rod 202 are both provided with a strip guide hole 2010, and the two ends of the polishing sand strip 3 are respectively arranged in the two strip guide holes 2010, and the two ends of the polishing sand strip 3 are respectively fixed in the two strip guide holes 2010 by a fixing block. Since the "Y"-shaped clamping member 2 needs to be disinfected after each use to facilitate the use of the next patient, in the present invention, the "Y"-shaped clamping member 2 is detachably connected to the swing block 5 through a rectangular bayonet. When the polishing device is used, the "Y"-shaped clamping member 2 can be disassembled from the handle body and the "Y"-shaped clamping member 2 can be cleaned separately. Similarly, the polishing sand strip 3 can also be disassembled from the "Y"-shaped clamping member and cleaned separately, which not only saves cleaning time but also improves the safety of cleaning.

[0049] The fixing block described above can be a wedge block, but is not limited to the wedge block fixing, as long as it plays a fixing role. In this way, the polishing sand strip 3 is not suitable for shaking off during the working process, and plays a good stabilizing effect.

[0050] Embodiment 2

[0051] like Figure 5 and Figure 6a , 6b As shown, the present invention provides another "Y"-shaped clamping member structure 2, the "Y"-shaped clamping member includes a first fixing rod 201 and a second fixing rod 202, the first fixing rod 201 and the second fixing rod 202 have the same structure, a first opening groove 2011 is vertically arranged inward at the end of the first fixing rod 201, and coaxial notches 2012 are respectively arranged on the side walls of the first fixing rod 201 on both sides of the first opening groove 2011, the notches 2012 on both sides of the first opening groove 2011 extend toward the axis of the first opening groove 2011 to form a fixing groove, a fixing block is placed in the fixing groove for fixing the polishing sand strip 3, and the length of the fixing groove is less than the width of the first fixing rod 201, a baffle 2013 is movably arranged on the outside of the first opening groove 2011 and along the length direction of the first fixing rod 201, a locking member 2015 is arranged on the side of the baffle 2013, and a lock buckle for the locking member is also provided on the outside of the first opening groove 2011.

[0052] During the installation process, the staff vertically puts the polishing sand strip 3 into the first opening groove 2011, and then pushes the fixing block into the fixing groove 2012 to fix the vertical direction of the polishing sand strip 3 through the fixing block; secondly, the locking piece 2015 of the baffle 2013 is fixed to the lock buckle 2014 to fix the polishing sand strip 3 horizontally, and the locking piece 2015 adopts a spring steel structure. When the polishing device is used, it is necessary to replace the polishing sand strip 3. First, the staff pinches the exposed part of the locking piece 2015 to pop the end of the locking piece 2015 out of the lock buckle 2014, and then pulls out the fixing block to take out the polishing sand strip 3 for replacement. The replaced polishing sand strip is cleaned separately, which not only saves cleaning time but also improves the safety of cleaning.

[0053] Embodiment 3

[0054] like Figure 8a , Figure 8b , Figure 9-11 As shown, the present invention also provides another "Y"-shaped clamping member structure 2, the first fixing rod 201 and the second fixing rod 201 have the same structure, a second opening groove 2016 is arranged on the side wall of the first fixing rod 201, the length of the second opening groove 2016 is the same as the width of the first fixing rod 201, that is, the second opening groove 2016 is arranged to penetrate the first fixing rod 201 in the horizontal direction, the depth of the second opening groove 2016 is less than the thickness of the first fixing rod 201, at least two adapter grooves 2017 for placing the clamping member 14 are arranged on the side wall of the first fixing rod 201, and first through holes 2018 are arranged on the inner end surfaces of the two adapter grooves 2017, the two adapter grooves 2017 are located on the upper and lower sides of the second opening groove 2016, the two ends of the polishing sand strip 3 are provided with second through holes adapted to the first through holes 2018, and when the polishing sand strip 3 is installed, the first through hole 2018 and the second through hole are located on the same vertical axis, and the polishing sand strip is fixed by the clamping member.

[0055] The clamping member 14 is made of U-shaped spring steel, and a clamping protrusion 1401 is provided at at least one end of the U-shaped spring steel.

[0056] During the installation process, the staff pushes the polishing strip 3 horizontally into the second open groove 2016, so that the second through hole on the polishing strip 3 is aligned with the first through hole 2018 on the inner end face of the adapter groove 2017, and then pushes the U-shaped spring steel into the adapter groove 2017 from the outer side of the first fixing rod 201 and the second fixing rod 202. The two extensions of the U-shaped spring steel pass through the first through hole 2018, and the clamping protrusions thereon are fixed to the second through hole of the polishing strip 3 to fix the polishing strip 3. When the polishing device is finished using, the staff pinches the exposed part of the U-shaped spring steel and pulls the U-shaped spring steel out of the adapter groove 2017 to release the fixation of the polishing strip 3. At this time, the polishing strip 3 can be replaced by pulling it out horizontally along the second open groove 2016. The replaced polishing strip can be cleaned separately, which not only saves cleaning time but also improves the safety of cleaning.

[0057] The first opening groove 2011 and the second opening groove 2016 are arranged to have a diameter that decreases from the outside to the inside, so as to facilitate the insertion of the polishing sand strip. The small diameter of the first opening groove 2011 and the second opening groove 2016 is conducive to clamping the polishing sand strip in the first step.

[0058] The handle housing described above includes a first handle housing 1 and a second handle housing 8, wherein the first handle housing 1 is provided with a plurality of guide holes 11, and the second handle housing 8 is provided with a plurality of guide posts 12, wherein the number of the guide holes 11 is the same as the number of the guide posts 12, and the guide holes 11 and the guide posts 12 are fixed by screws 9. During installation, the guide holes 11 and the guide posts 12 cooperate with each other.

[0059] When in use, after the driving motor is energized, the driving motor shaft rotates and drives the eccentric shaft to rotate. The shaft end of the eccentric shaft makes a circular motion around the axis of the driving motor under the drive of the motor. Since the shaft end of the eccentric shaft cooperates with the groove on the swing block, the swing block will swing back and forth around the axis of the rolling bearing. Since the "Y"-shaped clamp is fixedly connected to the swing block, under the reciprocating swinging action of the swing block, the "Y"-shaped clamp will also swing back and forth, thereby driving the polishing sand strip to make a reciprocating motion. Since the polishing sand strip is placed in the contact area between the restored tooth and the adjacent tooth, the reciprocating motion of the polishing sand strip can achieve the purpose of grinding and polishing the adjacent surfaces of the teeth.

[0060] Secondly, it should be noted that the Y-type clamp itself does not have a grinding function, it only clamps the polishing strip; the polishing strip is used after grinding, and its own grinding effect is very small, it is mainly for polishing; the working surface of the polishing strip is single-sided, and can be adjusted to make the working surface of the polishing strip located on the outside or inside according to the position of the adjacent surface of the tooth to be polished.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A handheld tooth proximal surface automatic polishing device, characterized in that: The polishing device comprises a clamping portion, The polishing sand strip is arranged on the clamping part. The handle body used to install the clamping part, The handle body includes a handle housing, and a swing block, an eccentric shaft, and a drive motor arranged inside the handle housing. One end of the swing block is detachably connected to the clamping portion, and the other end of the swing block is provided with a groove. The shaft end of the eccentric shaft is installed in the groove, and the eccentric shaft is fixedly connected to the motor shaft of the driving motor. The rear part of the handle housing is provided with a power line hole, and the drive motor is connected to an external power supply through the power line; The clamping part is a "Y"-shaped clamping piece, the "Y"-shaped clamping piece is detachably connected to the swing block through a rectangular bayonet, and the "Y"-shaped clamping piece includes a first fixing rod and a second fixing rod; The first fixing rod and the second fixing rod have the same structure, a second opening groove is provided on the side wall of the first fixing rod, at least two adapting grooves for placing the clamping member are provided on the outer side wall of the first fixing rod, and first through holes are provided on the inner end faces of the two adapting grooves, the two adapting grooves are located on both sides of the second opening groove, and second through holes adapted to the first through holes are provided at both ends of the polishing sand strip; The clamping member is a U-shaped spring steel, and a clamping protrusion is arranged at at least one end of the U-shaped spring steel; A rolling bearing is also arranged inside the handle housing, and the swing block is installed on the inner wall of the handle housing through the rolling bearing.

2. The handheld tooth proximal surface automatic polishing device according to claim 1, characterized in that: The opening width of the groove is suitable for the outer diameter of the shaft end of the eccentric shaft. When the eccentric shaft rotates, the shaft end of the eccentric shaft can slide freely in the groove.

3. The handheld tooth proximal surface automatic polishing device according to claim 1, characterized in that: The handle shell includes a first handle shell and a second handle shell. The first handle shell is provided with a plurality of guide holes, and the second handle shell is provided with a plurality of guide columns. The number of the guide holes is the same as the number of the guide columns, and the guide holes and the guide columns are fixed by screws.

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