A swing-wash handheld device and handheld dental medical device

Abstract

The utility model belongs to handheld dental medical equipment technical field relates to a kind of swabbing bending mobile phones and handheld dental medical equipment.Swabbing bending mobile phone includes: movement component;Driving element, the driving element is connected in the movement component, for driving the rotation of the movement component;Swabbing component, the swabbing component is connected in the movement component, when the movement component rotates, the end of the swabbing component away from the movement component is circular motion.Driving element can drive the rotation of movement component, to this end the end of swabbing component away from movement component is circular motion.When user needs to clean root canal lateral wall, the end of swabbing component away from movement component can be inserted into root canal, by the rotation of swabbing component, 360 ° horizontal plane swabbing is automatically realized, and then the efficiency and precision of root canal swabbing is improved.

Description

Technical Field

[0001] This utility model relates to the field of handheld dental medical device technology, and more specifically, to a handheld dental medical device and a handheld dental handpiece. Background Technology

[0002] In existing clinical surgeries such as root canal preparation, irrigation is usually required. Irrigation can be performed using a root canal preparation machine, which typically includes an irrigation body and an irrigation handpiece connected to the irrigation body. The irrigation handpiece includes an irrigation component. The irrigation body can drive the irrigation component to swing back and forth along its own length direction via a drive shaft, thereby reaching deep into the bottom of the root canal for irrigation.

[0003] However, when cleaning the inner wall of the root canal, in addition to the floor wall, it is also necessary to clean the lateral walls. In the existing technology, the squeegee can only vibrate in one direction. Therefore, when cleaning the lateral walls, the doctor needs to hold the squeegee and manually adjust the rotation of the squeegee to face the lateral walls, resulting in low efficiency and accuracy of root canal cleaning. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention provides the following solution:

[0005] A type of mobile phone that is shaped like a water-washing device, the mobile phone comprising: a core assembly;

[0006] A driving component, connected to the movement assembly, for driving the movement assembly to rotate;

[0007] A washing assembly is connected to the movement assembly. When the movement assembly rotates, the end of the washing assembly furthest from the movement assembly moves in a circular motion.

[0008] Furthermore, the movement assembly is provided with a first axis, and the movement assembly rotates about the first axis;

[0009] The washing assembly has a connecting part and a working part at each end. The connecting part is connected to the movement assembly. A second axis is formed between the connecting part and the working part. The second axis forms an angle with the first axis.

[0010] Furthermore, the movement assembly is provided with a weight-reduction cavity, which is used to ensure that the centers of mass of the movement assembly and the washing assembly are located on the first axis; and / or,

[0011] The included angle is 1° to 3°.

[0012] Furthermore, the movement assembly is provided with a connecting hole, the rinsing assembly includes a connecting rod and a rinsing working tip connected to each other, the connecting part is disposed on the connecting rod and inserted into the connecting hole, the working part is disposed on the rinsing working tip, and the connecting rod is inserted into the rinsing working tip; and / or,

[0013] The washing and bending mobile phone also includes a housing and a sealing ring. The housing is provided with a receiving cavity and an opening. The opening connects the receiving cavity and the external environment. The core assembly is located in the receiving cavity. The sealing ring is sleeved on the end of the core assembly near the opening.

[0014] Furthermore, the swivel-bending mobile phone also includes a housing, the housing being provided with a receiving cavity;

[0015] The washing assembly has a connecting part and a working part at each end;

[0016] The driving component includes an eccentric shaft, the axial length direction of which intersects the length direction of the washing assembly;

[0017] The movement assembly includes a moving pendulum. Along the axial length of the eccentric shaft, one end of the moving pendulum is eccentrically connected to the eccentric shaft, and the other end is connected to the connecting part. The eccentric shaft is used to drive the moving pendulum to eccentrically swing, so as to drive the end of the working part to perform a circular motion.

[0018] The moving ornament, the eccentric shaft, and the connecting part are all located within the receiving cavity, and the end of the moving ornament away from the eccentric shaft abuts against the inner wall of the outer shell.

[0019] Furthermore, a spherical groove is provided in the receiving cavity, and a first rotating part is provided at the end of the moving pendulum away from the eccentric shaft. The first rotating part is spherical, connected to the connecting part, and abuts against the spherical groove.

[0020] Furthermore, the receiving cavity includes an intersecting first channel and a second channel. Along the length direction of the first channel, the eccentric shaft and the moving pendulum are connected in sequence. The connecting part and the first rotating part are both located in the second channel, and at least part of the spherical groove is located in the second channel.

[0021] Furthermore, the second channel is clearance-fitted with the working part, and the cross-sectional area of ​​the second channel gradually increases along the direction from the connecting part to the working part; and / or,

[0022] The first rotating part is provided with a threaded hole facing the length direction of the second channel, and the connecting part is threadedly connected to the threaded hole. The thread direction of the threaded hole is opposite to the rotation direction of the working part.

[0023] Accordingly, this utility model provides a handheld dental medical device, which includes the handheld dental handpiece described in any of the above embodiments.

[0024] Furthermore, the handheld dental medical device also includes a washing body, in which a brushless motor is installed. The brushless motor is connected to the drive unit and is used to drive the drive unit to move.

[0025] Furthermore, the washing machine body is also equipped with a circuit assembly, which is connected to the brushless motor and is used to control the switching frequency and output torque of the brushless motor.

[0026] Furthermore, the frequency increase / decrease range controlled by the circuit assembly for the brushless motor includes at least a first range, a second range, and a third range, wherein the frequency of the first range is 5Hz to 10Hz, the frequency of the second range is 10Hz to 50Hz, and the frequency of the third range is 50Hz to 100Hz; and / or,

[0027] The speed of the brushless motor is 3500 to 18000 r / min.

[0028] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0029] The drive unit can drive the mechanism assembly to rotate, thereby causing the end of the rinsing component furthest from the mechanism assembly to move in a circular motion. When the user needs to clean the sidewalls of the root canal, the end of the rinsing component furthest from the mechanism assembly can be inserted into the root canal. With the help of the rotation of the rinsing component, 360° horizontal rinsing can be automatically achieved, thereby improving the efficiency and accuracy of root canal rinsing. Attached Figure Description

[0030] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a cross-sectional view of the swivel-bending mobile phone according to an embodiment of the present utility model;

[0032] Figure 2 yes Figure 1 A schematic diagram showing the connection between the movement components and the washing components;

[0033] Figure 3This is a schematic diagram showing the connection between the movement gears and the rinsing assembly when the center of mass is not on the first rotating shaft in this embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram showing the connection between the movement gears and the rinsing assembly when the center of mass is on the first rotating shaft in this embodiment of the present invention.

[0035] Figure 5 yes Figure 1 A cross-sectional view of the gears in the central movement;

[0036] Figure 6 This is a schematic diagram of the structure of the swivel-bending mobile phone according to an embodiment of the present utility model;

[0037] Figure 7 This is a cross-sectional view of the washing machine body according to an embodiment of the present utility model;

[0038] Figure 8 This is an exploded view of a handheld medical device according to an embodiment of the present invention.

[0039] Figure label:

[0040] The components include: a mechanism assembly 20, a bearing 21, a mechanism gear 22, a weight reduction cavity 23, a connecting hole 24, a drive shaft 30, a gearbox 40, a center of mass 50, a first axis 51, a second axis 52, a washing bending handpiece 100, a first sleeve 110, a first gear 110, a second gear 120, a washing assembly 130, a connecting part 131, a working part 132, a connecting rod 133, a washing working tip 134, a housing 140, a first sub-housing housing 141, a second sub-housing housing 142, a drive shaft 150, a moving ornament 160, a first rotating part 161, a second rotating part 162, an eccentric shaft 170, a washing machine body 200, a circuit assembly 210, a brushless motor 220, and a sealing ring 300. Detailed Implementation

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] To solve the above problems, please refer to... Figure 1 , Figure 2 and Figure 6 This utility model provides a swivel-washing and bending mobile phone 100, which includes: a core assembly 20;

[0044] A drive component is connected to the movement assembly 20 and is used to drive the movement assembly 20 to rotate;

[0045] The washing assembly 130 is connected to the movement assembly 20. When the movement assembly 20 rotates, the end of the washing assembly 130 that is away from the movement assembly 20 moves in a circular motion.

[0046] In this embodiment, the drive unit can drive the mechanism assembly 20 to rotate, thereby causing the end of the rinsing assembly 130 away from the mechanism assembly 20 (working part 132) to move in a circular motion (circuit B in the figure). When the user needs to clean the sidewalls of the root canal, the end of the rinsing assembly 130 away from the mechanism assembly 20 can be inserted into the root canal. With the help of the rotation of the rinsing assembly 130, 360° horizontal rinsing is automatically achieved, thereby improving the efficiency and accuracy of root canal rinsing.

[0047] Further, please refer to Figures 1-5 The movement assembly 20 is provided with a first axis 51, and the movement assembly 20 rotates around the first axis 51;

[0048] The washing assembly 130 has a connecting part 131 and a working part 132 at its two ends. The connecting part 131 is connected to the movement assembly 20. A second axis 52 is formed between the connecting part 131 and the working part 132. The second axis 52 forms an angle with the first axis 51 (labeled C in the figure).

[0049] In this embodiment, the first axis 51 is parallel to the Z-axis in the figure. When the movement assembly 20 rotates around the first axis 51, it will drive the rinsing assembly 130 to rotate. Because the second axis 52 of the rinsing assembly 130 forms an angle with the first axis 51, the movement path of the second axis 52 is conical. At the same time, the movement path of the working part 132 is as shown by mark B in the figure, which is circular. Therefore, the working part 132 can achieve 360° rinsing to improve rinsing accuracy and efficiency.

[0050] Further, please refer to Figures 1-4 The movement assembly 20 is provided with a weight-reducing cavity 23, which is used to position the center of mass 50 of the movement assembly 20 and the rinsing assembly 130 on the first axis 51; and / or,

[0051] The included angle is 1° to 3°.

[0052] In this embodiment, according to Newton's laws of motion, when the movement assembly 20 rotates, due to the asymmetrical mass distribution of the washing assembly 130 and the movement assembly 20, the entire assembly formed by the washing assembly 130 and the movement assembly 20 will generate centrifugal force. This centrifugal force will cause the entire assembly formed by the washing assembly 130 and the movement assembly 20 to vibrate laterally (in the X direction in the figure), thereby generating noise. When the movement assembly 20 is not provided with the weight reduction cavity 23, the center of mass 50 of the entire assembly formed by the washing assembly 130 and the movement assembly 20 is located at... Figure 4 When the centrifugal force is in the middle position, there is a certain gap between the center of mass 50 and the first axis 51 (labeled D in the figure). According to Newton's laws of motion, the formula for calculating centrifugal force is F = mω²r, where m is the mass, ω is the angular velocity, and r is the offset of the center of mass 50. Therefore, the value of r is large at this time, the centrifugal force is large, and the noise is also large.

[0053] Since the center of mass 50 is related to the geometry of the object, when the weight-reducing cavity 23 is provided, the geometry of the object can be changed so that the center of mass 50 is close to or located at... Figure 5 At this position, the center of mass 50 is located on the first axis 51, so the offset of r is small, the centrifugal force is small, and the noise is also small. In summary, the weight reduction chamber 23 of this embodiment can effectively reduce the noise generated by the washing assembly 130 during operation.

[0054] When the included angle (labeled C in the figure) formed between the first axis 51 and the second axis 52 is in the range of 1° to 3°, the working part 132 can generate helical fluid shear force through circular motion, thereby improving root canal cleaning efficiency. Secondly, this angle controls the lateral cutting force within the dentin safety threshold, reducing the risk of tissue damage and lowering equipment maintenance costs. It should be understood that the weight-reducing cavity 23 can be of various shapes such as cube, cone, sphere, or irregular three-dimensional structure, as long as the weight-reducing cavity 23 allows the center of mass 50 to be located on the first axis 51.

[0055] Further, please refer to Figure 1 , Figure 2 and Figure 5 The movement assembly 20 is provided with a connection hole 24. The rinsing assembly 130 includes a connecting rod 133 and a rinsing working tip 134 connected to each other. A connecting part 131 is disposed on the connecting rod 133 and inserted into the connection hole 24. A working part 132 is disposed on the rinsing working tip 134, and the connecting rod 133 is inserted into the rinsing working tip 134; and / or,

[0056] The washing and bending mobile phone 100 also includes a housing and a sealing ring 300. The housing is provided with a receiving cavity and an opening. The opening connects the receiving cavity and the external environment. The core assembly 20 is located in the receiving cavity. The sealing ring 300 is sleeved on the end of the core assembly 20 near the opening.

[0057] In this embodiment, the split connecting rod 133 and the rinsing working tip 134 are designed with an interference fit to achieve lossless torque transmission, ensuring the working tip's swing angle deviation and reducing processing difficulty. The sealing ring 300 can prevent liquid from entering the receiving cavity from the opening during use of the rinsing bending handpiece 100, thereby improving the service life of the rinsing bending handpiece 100. It should be understood that the connecting rod 133 can be made of PEEK, which has high strength, wear resistance, and low density. Therefore, when the connecting rod 133 and the connecting hole 24 are connected, the center of mass 50 can be close to the first axis 51, thereby reducing the processing difficulty of the weight reduction cavity 23. The sealing ring 300 can be made of fluorosilicone, and its structure can be lip-shaped to facilitate fitting onto the core assembly 20.

[0058] It should be understood that the connecting rod 133 and the connecting hole 24 can be threaded together, and the connecting rod 133 and the rinsing working tip 134 can be interlocked by an interference fit. The outer casing may include a first sub-outer casing 141 and a second sub-outer casing 142. The first sub-outer casing 141 has a receiving cavity, and the second sub-outer casing 142 is interference-fitted to the opening of the receiving cavity. The second sub-outer casing 142 is sleeved on the movement assembly 20, and the sealing ring 300 is located between the second sub-outer casing 142 and the movement assembly 20.

[0059] To solve the above technical problems, please refer to Figures 6 to 8 In the diagram, the X direction represents the left-right direction, and the Z direction represents the up-down direction. The washing assembly 130 also includes a housing 140, which has a receiving cavity (not marked in the diagram):

[0060] The washing assembly 130 has a connecting part 131 and a working part 132 at its two ends respectively;

[0061] The driving component includes an eccentric shaft 170, the axial length direction of which intersects the length direction of the washing assembly;

[0062] The movement assembly 20 includes a moving pendulum 160. Along the axial length of the eccentric shaft 170, one end of the moving pendulum 160 is eccentrically connected to the eccentric shaft 170, and the other end is connected to the connecting part 131. The eccentric shaft 170 is used to drive the moving pendulum 160 to eccentrically swing, so as to drive the end of the working part 132 to perform circular motion.

[0063] The moving part 160, the eccentric shaft 170 and the connecting part 131 are all located in the receiving cavity, and the end of the moving part 160 away from the eccentric shaft 170 abuts against the inner wall of the outer shell 140.

[0064] In this embodiment, the eccentric shaft 170 is capable of rotating about its own axis. When the eccentric shaft 170 rotates, it can drive the moving pendulum 160 to eccentrically swing. This eccentric swing should be understood as: the end of the moving pendulum 160 near the eccentric shaft 170... Figure 1 The eccentric component 160 moves in a circular motion along line A (the plane containing line A can be perpendicular to the axis of the eccentric shaft 170). At this time, because the end of the moving component 160 away from the eccentric shaft 170 abuts against the inner wall of the outer casing 140, this end will not move along line A, causing the overall range of motion of the moving component 160 to form a cone-shaped structure. Furthermore, because the length direction of the rinsing assembly 130 intersects the length direction of the eccentric shaft 170 and is connected to the end of the moving component 160 away from the eccentric shaft 170, when the eccentric component moves in a circular motion along line A, under the driving force of the end of the moving component 160 away from the eccentric shaft 170, the end of the working part 132 of the rinsing assembly 130 will move in a circular motion along line B (the straight line between the working part 132 and the connecting part 131 of the rinsing assembly 130 can be perpendicular to the plane containing line B).

[0065] Specifically, when the end of the moving part 160 near the eccentric shaft 170 moves along line A to a position near the upper part of the receiving cavity, the end of the working part 132 can move along line B to a position near the left end. When the end of the moving part 160 near the eccentric shaft 170 moves along line A to a position near the lower part of the receiving cavity, the end of the working part 132 can move along line B to a position near the right end.

[0066] In summary, the rinsing component 130 of this utility model embodiment can perform elliptical or circular motion on a plane intersecting with its own length direction. Therefore, when operating a device containing the rinsing component 130, the user can directly control the rinsing component 130 to clean the residue on the inner wall of the root canal, thereby improving surgical efficiency.

[0067] Further, please refer to Figure 1 The cavity is provided with a spherical groove (not marked in the figure). The end of the moving ornament 160 away from the eccentric shaft 170 is provided with a first rotating part 161. The first rotating part 161 is spherical and is connected to the connecting part 131. The first rotating part 161 abuts against the spherical groove.

[0068] In this embodiment, since the first rotating part 161 is spherical and abuts against the spherical groove, when the first rotating part 161 moves along line A at the end of the moving ornament 160 near the eccentric shaft 170, the first rotating part 161 will roll in the spherical groove. During its rolling, since the length direction of the rinsing assembly 130 intersects with the length direction of the eccentric shaft 170, the end of the working part 132 of the rinsing assembly 130 connected to it will move along line B, thereby achieving the function of cleaning the inner wall of the root canal with the rinsing assembly 130. It should be understood that if the first rotating part 161 is conical and its tip abuts against the inner wall of the receiving groove, then when the moving ornament 160 moves near the end of the eccentric shaft 170, although the part where its tip is located cannot roll, it can still drive the rinsing assembly 130 to make a circular motion along a certain trajectory. If the first rotating part 161 is spherical, and the inner wall of the receiving cavity is not provided with a spherical groove but a square groove, the first rotating part 161 can still roll, but it is easy to wear. That is, the spherical groove and the spherical design of the first rotating part 161 can effectively reduce the wear rate of the first rotating part 161 and the inner wall of the receiving cavity, thereby avoiding the decrease in the accuracy of the washing assembly 130.

[0069] Further, please refer to Figure 1 The receiving cavity includes an intersecting first channel (not marked in the figure) and a second channel (not marked in the figure). Along the length direction of the first channel, the eccentric shaft 170 and the moving pendulum 160 are connected in sequence. The connecting part 131 and the first rotating part 161 are both located in the second channel. At least part of the spherical groove is located in the second channel.

[0070] In this embodiment, the first channel and the second channel intersect, thus the first channel can limit the movement range of the moving part 160. Since the first rotating part 161 and the connecting part 131 are both located within the second channel, the second channel can limit the movement range of the working part 132. In summary, the first channel and the second channel can prevent the moving part 160 and the working part 132 from having an excessively large movement range, which could cause the end of the working part 132 to abut against the inner wall of the root canal and cause wear or rupture of the inner wall of the root canal. Since the moving part 160 and the eccentric shaft 170 are arranged along the length direction of the first channel, in order to prevent the moving first rotating part 161 from leaving the preset position, at least part of the spherical groove needs to be located within the second channel for the first rotating part 161 to abut and be positioned.

[0071] Further, please refer to Figure 1 The second channel is fitted with the working part 132 with a clearance, and the cross-sectional area of ​​the second channel gradually increases along the direction from the connecting part 131 to the working part 132.

[0072] In this embodiment, since the end of the working part 132 moves in a circular motion along line B, as shown in the figure, the movement trajectory of each part of the washing assembly 130 within the length range from the connecting part 131 to the end of the working part 132 can be regarded as a circular motion, and the range of the movement trajectory of each part gradually increases along the direction from the connecting part 131 to the end of the working part 132. Therefore, in this embodiment, the second channel and the working part 132 are fitted with a clearance, and the cross-sectional area of ​​the second channel gradually increases along the direction from the connecting part 131 to the working part 132. This allows the part of the working part 132 located within the range of the second channel to uniformly abut against the inner wall of the second channel, thereby avoiding the phenomenon that the part of the working part 132 far from the connecting part 131 abuts against the inner wall of the second channel, while the part close to the connecting part 131 does not abut, which would lead to greater wear on the part far from the connecting part 131.

[0073] Further, please refer to Figure 1 The first rotating part 161 is provided with a threaded hole facing the length direction of the second channel, and the connecting part 131 is threadedly connected to the threaded hole. The thread direction of the threaded hole is opposite to the rotation direction of the working part 132.

[0074] In this embodiment, the threaded connection between the connecting part 131 and the first rotating part 161 allows for quick disassembly and stable connection. Because the thread direction of the threaded hole is opposite to the rotation direction of the working part 132, the connection between the working part 132 and the threaded hole becomes tighter when the working part 132 rotates, thus preventing it from falling out of the threaded hole during rotation. It should be understood that the connection between the first rotating part 161 and the connecting part 131 also includes an interference fit.

[0075] Further, please refer to Figure 1 An eccentric groove (not marked in the figure) is provided at one end of the eccentric shaft 170 facing the moving ornament 160. There is a distance between the center line of the eccentric groove and the axis of the eccentric shaft 170. The end of the moving ornament 160 near the eccentric shaft 170 abuts against the eccentric groove.

[0076] In this embodiment, since there is a distance between the center line of the eccentric groove and the axis of the eccentric shaft 170, and the end of the moving pendulum 160 near the eccentric shaft 170 abuts against the eccentric groove, after the eccentric shaft 170 rotates along its own axis, it will drive the end of the moving pendulum 160 near the eccentric shaft 170 to make a circular motion along line A in the figure.

[0077] Further, please refer to Figure 1 The eccentric groove is spherical, and the moving ornament 160 is provided with a second rotating part 162 at one end facing the eccentric groove. The second rotating part 162 is spherical and located inside the eccentric groove.

[0078] In this embodiment, since both the eccentric groove and the second rotating part 162 are spherical, when the eccentric shaft 170 moves, the second rotating part 162 can abut against the inside of the eccentric groove in sequence, thereby avoiding excessive force and wear at a certain point of the second rotating part 162; at the same time, it can also increase the force-bearing area of ​​the eccentric groove and the second rotating part 162, further improving the stability of the moving pendant 160 during movement.

[0079] Furthermore, the driving component includes a first gear 110 and a second gear 120 that mesh with each other. The ratio of the number of teeth of the first gear 110 to the number of teeth of the second gear 120 is 1:1 to 3:1. The second gear 120 is used to drive the washing assembly 130 to move.

[0080] In this embodiment, firstly, the number of teeth of the first gear 110 is greater than that of the second gear 120. When the first gear 110 rotates, the gear set of the first gear 110 and the second gear 120 will have the effect of speeding up. That is, when the first gear 110 rotates once, the second gear 120 rotates more than once, thereby increasing the working frequency of the washing component 130 and thus increasing the washing frequency of the washing handpiece 100.

[0081] The ratio of the number of teeth on the first gear 110 to the number of teeth on the second gear 120 determines their speed-increasing effect. Therefore, the speed-increasing range of the first gear 110 and the second gear 120 is 1.5 to 3 times the speed-increasing factor. Preferably, a tooth ratio of 1.5 may cause the first gear 110 to bear a large torque, while a ratio of 3 may cause the second gear 120 to rotate too high, leading to increased impact force between the gears and affecting the stability of the mechanism. When the tooth ratio of the first gear 110 and the second gear 120 is 2.5, the gear set experiences more balanced force during power transmission. This helps reduce gear wear and deformation, extending the service life of the first gear 110 and the second gear 120.

[0082] It should be understood that, such as Figure 1As shown, the driving components in the oscillating and bending mobile phone 100 may include a drive shaft 30 and a gearbox 40. The drive shaft 30 is provided with a second gear, and the gearbox 40 is provided with a first gear. The gearbox 40 can be driven by an external motor. When the gearbox 40 rotates, the drive shaft 30 will rotate synchronously, driving the mechanism assembly 20 to rotate. The mechanism assembly 20 may include a mechanism gear 22 and multiple bearings 21. The bearings 21 connect the mechanism gear 22 and the housing. The first axis 51 is determined by the bearings 21 and their mounting positions. The sealing ring 300 may include a first sub-sealing ring and a second sub-sealing ring stacked together. The first sub-sealing ring is used to seal the gap between the mechanism assembly 20 and the second sub-housing 142, and the second sub-sealing ring is located between the first sub-sealing ring and the bearings 21 to seal the gap between the bearings 21 and the mechanism assembly 20.

[0083] Please refer to Figures 1 to 8 The present invention also provides a handheld dental medical device, which includes the handheld dental handpiece 100 of any of the above embodiments.

[0084] In this embodiment, the drive unit in the handheld dental medical device can drive the mechanism assembly 20 to rotate, thereby causing the end (working part) of the rinsing component away from the mechanism assembly 20 to move in a circular motion. When the user needs to clean the root canal sidewalls, the end of the rinsing component away from the mechanism assembly can be inserted into the root canal. With the help of the rotation of the rinsing component, 360° horizontal rinsing is automatically achieved, thereby improving the practical efficiency and accuracy of the root canal preparation machine. It should be understood that the handheld dental medical device includes a root canal preparation machine.

[0085] In existing clinical surgeries such as dental surgery, rinsing is usually required. Rinsing can be performed using handheld medical devices such as sonic rinsing machines. A sonic rinsing machine typically includes a rinsing handpiece 100 and a rinsing body. The high-frequency vibration generated by the reciprocating motion of the motor inside the rinsing body causes the rinsing components of the rinsing handpiece 100 to vibrate. At this time, the frequency of the reciprocating motion of the motor is equal to the frequency range of the high-frequency vibration.

[0086] Existing handheld medical devices typically use brushed motors to directly drive the rinsing head. As a result, the rinsing components of the rinsing head have many problems, such as limited frequency range (usually 200Hz to 300Hz) and limited torque range, making them unable to adapt to different surgical requirements, limited switchable speeds (usually only 2 speeds), inability to adjust torque, high noise, and short lifespan.

[0087] Further, please refer to Figures 6 to 8 Handheld medical devices also include:

[0088] The washing machine body 200 contains a brushless motor connected to the drive unit to drive the movement of the drive unit.

[0089] In this embodiment, the washing machine body 200 uses a brushless motor drive component. Since the brushless motor has the characteristics of low noise and strong control capability, it can control the frequency and torque to vary in a small range. For example, the frequency of the washing component 130 can be controlled in a control range of 10Hz, thereby realizing the combined control of multiple levels, multiple frequencies and multiple torques of the washing component 130, so that the washing handpiece 100 can be used in a variety of surgical scenarios.

[0090] Further, please refer to Figures 6 to 8 The washing machine body 200 also has a circuit assembly 210 inside, which is connected to the brushless motor 220. The circuit assembly 210 is used to control the switching frequency and output torque of the brushless motor 220.

[0091] In this embodiment, the circuit component 210 can control the brushless motor 220 to switch its own frequency and output torque. Since the brushless motor 220 has high output accuracy and strong stability, it can control the frequency and output torque of the brushless motor 220 to be adjusted within a smaller range compared to the output frequency and output torque of the brushed motor, so as to adapt to the high-precision operation.

[0092] Further, please refer to Figures 6 to 8 The frequency increase / decrease range of the brushless motor 220 controlled by the circuit component 210 includes at least a first range, a second range, and a third range. The frequency of the first range is 5Hz to 10Hz, the frequency of the second range is 10Hz to 50Hz, and the frequency of the third range is 50Hz to 100Hz.

[0093] In this embodiment, under the control of the circuit component 210, the brushless motor 220 of this utility model can have multiple frequency increase / decrease ranges, and the frequency accuracy of these multiple ranges is high, thereby achieving high-precision multi-level control. For example, when using three-level control, the first level corresponds to the first range with a frequency of 5Hz to 10Hz, the second level corresponds to the second range with a frequency of 10Hz to 50Hz, and the third level corresponds to the third range with a frequency of 50Hz to 100Hz. By setting the above levels, the handpiece 100 can adapt to high-precision surgical environments with various frequency requirements.

[0094] Further, please refer to Figures 6 to 8 The washing and bending mobile phone 100 also includes a drive shaft 150. One end of the drive shaft 150 is connected to the first gear 110, and the other end is used to connect to an external drive shaft 150. The first gear 110 is a bevel gear, and the eccentric shaft 170 intersects with the drive shaft 150.

[0095] Further, please refer to Figures 6 to 8 The speed of the brushless motor 220 is 3500 r / min to 18000 r / min.

[0096] In this embodiment, the brushless motor 220 exhibits high stability when its speed is between 3500 r / min and 18000 r / min. Taking its maximum value of 8000 r / min, after passing through the speed-increasing gear set, the output shaft speed is the motor speed multiplied by the speed-increasing factor, i.e., 18000 × 2.5 = 45000 r / min. The relationship between the frequency unit Hertz (Hz) and the rotational speed (r / min) is: 1 Hz represents one revolution per second, and 1 r / min = 1 / 60 r / s. Therefore, the final output frequency is 45000 / 60 = 750 Hz. Thus, the brushless motor 220 of this invention can increase the frequency to a maximum of 750 Hz, thereby broadening its applicability.

[0097] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

[0098] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

[0099] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, combinations, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A type of mobile phone with a swivel-washing function, characterized in that, The aforementioned washing and bending mobile phone includes: Movement components; A driving component, connected to the movement assembly, for driving the movement assembly to rotate; A washing assembly is connected to the movement assembly. When the movement assembly rotates, the end of the washing assembly furthest from the movement assembly moves in a circular motion.

2. The mobile phone with a swivel and bend function according to claim 1, characterized in that, The movement assembly is provided with a first axis, and the movement assembly rotates around the first axis; The washing assembly has a connecting part and a working part at each end. The connecting part is connected to the movement assembly. A second axis is formed between the connecting part and the working part. The second axis forms an angle with the first axis.

3. The mobile phone with a swivel and bend function according to claim 2, characterized in that, The movement assembly is provided with a weight-reduction cavity, which is used to ensure that the center of mass of the movement assembly and the washing assembly are located on the first axis; and / or, The included angle is 1° to 3°.

4. The mobile phone with a swivel and bend function according to claim 2, characterized in that, The movement assembly is provided with a connecting hole; the rinsing assembly includes a connecting rod and a rinsing working tip connected to each other; the connecting part is disposed on the connecting rod and inserted into the connecting hole; the working part is disposed on the rinsing working tip; and the connecting rod is inserted into the rinsing working tip; and / or, The washing and bending mobile phone also includes a housing and a sealing ring. The housing is provided with a receiving cavity and an opening. The opening connects the receiving cavity and the external environment. The core assembly is located in the receiving cavity. The sealing ring is sleeved on the end of the core assembly near the opening.

5. The mobile phone with a swivel and bend function according to claim 1, characterized in that, The swivel-bending mobile phone also includes a housing, which has a receiving cavity; The washing assembly has a connecting part and a working part at each end; The driving component includes an eccentric shaft, the axial length direction of which intersects the length direction of the washing assembly; The movement assembly includes a moving pendulum. Along the axial length of the eccentric shaft, one end of the moving pendulum is eccentrically connected to the eccentric shaft, and the other end is connected to the connecting part. The eccentric shaft is used to drive the moving pendulum to eccentrically swing, so as to drive the end of the working part to perform a circular motion. The moving ornament, the eccentric shaft, and the connecting part are all located within the receiving cavity, and the end of the moving ornament away from the eccentric shaft abuts against the inner wall of the outer shell.

6. The mobile phone with a swivel and bend function according to claim 5, characterized in that, The cavity is provided with a spherical groove, and the end of the moving pendulum away from the eccentric shaft is provided with a first rotating part. The first rotating part is spherical, connected to the connecting part, and abuts against the spherical groove.

7. The mobile phone with a swivel and bend function according to claim 6, characterized in that, The receiving cavity includes an intersecting first channel and a second channel. Along the length of the first channel, the eccentric shaft and the moving pendulum are connected in sequence. The connecting part and the first rotating part are both located in the second channel, and at least part of the spherical groove is located in the second channel.

8. The mobile phone with a swivel and bend function according to claim 7, characterized in that, The second channel is clearance-fitted with the working part, and the cross-sectional area of ​​the second channel gradually increases along the direction from the connecting part to the working part; and / or, The first rotating part is provided with a threaded hole facing the length direction of the second channel, and the connecting part is threadedly connected to the threaded hole. The thread direction of the threaded hole is opposite to the rotation direction of the working part.

9. The mobile phone with a swivel-washing function according to claim 1, characterized in that, The driving component includes a first gear and a second gear that mesh with each other. The ratio of the number of teeth of the first gear to the number of teeth of the second gear is 1:1 to 3:

1. The second gear is used to drive the washing assembly to move.

10. A handheld dental medical device, characterized in that, The handheld dental medical device includes the handpiece according to any one of claims 1 to 9.

11. The handheld dental medical device according to claim 10, characterized in that, The handheld dental medical device also includes a washing body, in which a brushless motor is installed. The brushless motor is connected to the drive unit and is used to drive the drive unit to move.

12. The handheld dental medical device according to claim 11, characterized in that, The washing machine body is also equipped with a circuit component, which is connected to the brushless motor and is used to control the switching frequency and output torque of the brushless motor.

13. The handheld dental medical device according to claim 12, characterized in that, The circuit assembly controls the brushless motor to operate within a frequency range that includes at least a first range, a second range, and a third range. The frequency of the first range is 5Hz to 10Hz, the frequency of the second range is 10Hz to 50Hz, and the frequency of the third range is 50Hz to 100Hz; and / or, The speed of the brushless motor is 3500 to 18000 r / min.

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