Rotating mechanism and dental handpiece using same

Abstract

The invention relates to the technical field of oral treatment instruments, in particular to a rotating mechanism which comprises a rotating piece, a connecting piece, a rotating reciprocating piece, a fixed disc, a reciprocating assembly and an elastic piece. The rotating piece is axially and fixedly arranged and is connected with the rotary reciprocating piece through the connecting piece; the fixed disc is fixedly arranged below the rotary reciprocating piece; the reciprocating assembly is arranged on the fixed disc and is connected with the rotary reciprocating piece; when the rotary reciprocating part rotates, the rotary reciprocating part reciprocates up and down under the alternate action of the reciprocating assembly and the elastic part. Meanwhile, the invention also provides a dental handpiece using the rotating mechanism, and the rotating mechanism is arranged in the handpiece; the wind wheel is a rotating piece of the rotating mechanism, the machine needle is a rotating reciprocating piece rod end of the rotating mechanism, and the bottom wall of the machine head is a fixing disc of the rotating mechanism. According to the invention, the machine needle of the dental handpiece can be driven to do rotary reciprocating motion to replace manual point contact operation, so that the problems that the manual point contact force is difficult to control and the physical power is consumed are solved.

Description

Technical Field

[0001] The invention relates to the technical field of oral treatment instruments, and in particular to a rotating mechanism and a dental handpiece using the rotating mechanism. Background Art

[0002] Dental handpieces are electric tools used for dental treatment and surgery. They are widely used in various dental treatments, including filling, root canal treatment and tooth cleaning. Dental handpieces use compressed air as a power source to drive the wind wheel to rotate at high speed, thereby driving the needle to rotate to complete operations such as drilling and grinding of the tooth.

[0003] At present, when dentists use dental mobile phones to treat patients, they hold the dental mobile phones and use a touch operation method to drill and grind teeth intermittently, as follows:

[0004] 1. Positioning: gently touch the needle of the dental handpiece to the target area (such as caries, tartar, etc.);

[0005] 2. Short-term force application: When using touch operation, gently press the switch and apply force for a short period of time. The device can be turned on and off quickly to control the contact time each time;

[0006] 3. Observe feedback. During the operation, observe the reaction of the teeth and surrounding tissues to ensure that excessive damage is not caused.

[0007] The touch operation can help doctors achieve more efficient and precise treatment. However, the longitudinal depth of the tooth grinding by the needle drill depends on the doctor's personal experience and force control. For doctors who are not experienced enough, poor force control can easily cause accidental injuries to patients. Frequent touch actions will also consume more physical strength, resulting in lower efficiency of the doctor's operation. Summary of the invention

[0008] In view of this, one of the purposes of the present invention is to provide a rotating mechanism that can drive the needle of a dental handpiece to perform a rotating reciprocating motion to replace the manual touch operation, thereby solving the problem that the manual touch force is difficult to control and consumes physical strength.

[0009] A second object of the present invention is to provide a dental handpiece using the above-mentioned rotating mechanism.

[0010] In order to achieve the above first purpose, the present invention provides the following technical solutions:

[0011] A rotating mechanism comprises a rotating member, a connecting member, a rotating reciprocating member, a fixed disk, a reciprocating assembly and an elastic member; the rotating member is axially fixedly arranged, and the rotating member is connected to the rotating reciprocating member through the connecting member to drive the rotating reciprocating member to rotate; the fixed disk is fixedly arranged below the rotating reciprocating member; the reciprocating assembly is arranged on the fixed disk and connected to the rotating reciprocating member, and the reciprocating assembly can intermittently move the rotating reciprocating member upward under the rotation of the rotating reciprocating member; the elastic member is arranged on the upper side of the rotating reciprocating member and connects the rotating reciprocating member and the rotating member, and when the reciprocating assembly stops moving the rotating reciprocating member upward, the elastic member can move the rotating reciprocating member downward; when the rotating reciprocating member rotates, the alternating action of the reciprocating assembly and the elastic member causes the rotating reciprocating member to reciprocate up and down.

[0012] According to the above technical solution, it can be known that the rotary reciprocating part can be used to connect the needle of the dental handpiece, the dental handpiece can drive the rotating part to rotate, and the rotation of the rotating part can drive the rotary reciprocating part to rotate synchronously through the connecting part; the reciprocating component can intermittently move the rotary reciprocating part upward under the rotation of the rotary reciprocating part; when the reciprocating component stops moving the rotary reciprocating part upward, the elastic part can move the rotary reciprocating part downward; when the rotary reciprocating part rotates, the reciprocating component and the elastic part alternately act to make the rotary reciprocating part reciprocate up and down. Compared with the prior art, the present invention can drive the needle of the dental handpiece to do rotary reciprocating motion through the rotary reciprocating part to replace the manual touch operation, solving the problem that the manual touch force is difficult to control and consumes physical strength.

[0013] As an optional solution, the connecting member is two plug rods, one end of the two plug rods is fixedly connected to the two sides of the lower surface of the rotating member, and the other end of the two plug rods is moved up and down and plugged into the rotating reciprocating member.

[0014] As an optional solution, the cross section of the rotary reciprocating member is T-shaped.

[0015] As an optional solution, the reciprocating assembly includes a column, a turntable and a supporting screw; the upper end of the column is fixedly connected to the outer periphery of the head end of the rotating reciprocating member, and the lower end of the column abuts against the upper surface of the fixed disk; the turntable is tilted and is connected to one end of the fixed disk for up and down rotation; the supporting screw is threadedly connected to the other end of the fixed disk, and the upper end of the supporting screw abuts against the free end of the turntable.

[0016] As an optional solution, the reciprocating assembly includes an eccentric bevel gear and a fixed bevel gear; the eccentric bevel gear is vertically rotatably connected to the end of the rotating reciprocating member rod; the fixed bevel gear is horizontally fixedly connected to the fixed plate, and the eccentric bevel gear and the fixed bevel gear are transmission connected; the eccentric bevel gear is close to the rotating reciprocating member.

[0017] As an optional solution, a rotating shaft is coaxially fixedly connected to the middle of the lower surface of the rotating member, and the lower end of the rotating shaft is inserted into the rotating reciprocating member for vertical movement; the elastic member is a compression spring, and the compression spring is sleeved on the rotating shaft.

[0018] In order to achieve the above-mentioned second purpose, the present invention also provides a dental mobile phone, including a handpiece and a handle connected to each other, a wind wheel is rotatably provided in the handpiece, a needle is penetrated through the bottom wall of the handpiece, and also includes the rotating mechanism, which is arranged in the handpiece; the wind wheel is a rotating part of the rotating mechanism, the needle is a rotating reciprocating part rod end of the rotating mechanism, and the bottom wall of the handpiece is a fixed disk of the rotating mechanism.

[0019] As an optional solution, a ball bearing located above the rotating member is provided in the machine head, and the rotating member is mounted on the ball bearing.

[0020] As an optional solution, the head end of the rotary reciprocating member is in the shape of a cylindrical shell.

[0021] As an optional solution, the head end of the rotating reciprocating member is sealed and connected in the machine head by sliding up and down; a water vapor channel is provided in the machine handle, and the water vapor channel connects the spacing space between the head end of the rotating reciprocating member and the fixed disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 is a three-dimensional diagram of the rotating mechanism described in Example 1;

[0024] Figure 2 It is a front view of the rotating mechanism described in Example 1;

[0025] Figure 3 is a cross-sectional view of the rotating mechanism described in Example 1;

[0026] Figure 4 is a three-dimensional diagram of the rotating mechanism described in Example 2;

[0027] Figure 5 A front view of the rotating mechanism described in Example 2;

[0028] Figure 6 For use Figure 1A cross-sectional view of a dental handpiece according to an embodiment of a rotating mechanism.

[0029] Figure 7 For use Figure 1 A cross-sectional view of the handpiece of a dental handpiece according to another embodiment of a rotating mechanism.

[0030] Figure numerals: 1. rotating part; 11. rotating shaft; 2. connecting part; 3. rotating reciprocating part; 31. turning needle; 4. fixed disk; 41. through hole; 5. reciprocating assembly; 51. column; 52. turntable; 53. supporting screw; 531. cross bar; 54. eccentric bevel gear; 55. fixed bevel gear; 6. elastic part; 7. machine head; 8. machine handle; 81. water vapor channel; 82. air duct; 9. ball bearing. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0032] Example 1

[0033] Please refer to Figure 1-3 The rotating mechanism provided in this embodiment includes a rotating member 1, a connecting member 2, a rotating reciprocating member 3, a fixed disk 4, a reciprocating assembly 5 and an elastic member 6.

[0034] The rotating member 1 is axially fixedly arranged in the dental handpiece and driven to rotate by the dental handpiece. The rotating member 1 is connected to the rotating reciprocating member 3 located below the rotating member 1 through the connecting member 2. The cross section of the rotating reciprocating member 3 can be set to be T-shaped, the head end of the rotating reciprocating member 3 is horizontally extended, the rod end of the rotating reciprocating member 3 is vertically extended, the rod end of the rotating reciprocating member 3 is used to connect the needle 31 of the dental handpiece or directly adopts the structure design of the needle 31. The rotating reciprocating member 3 is coaxially arranged with the rotating member 1. When the rotating member 1 rotates, the rotating reciprocating member 3 can be driven to rotate synchronously through the connecting member 2, thereby driving the needle 31 to rotate. Specifically, the above-mentioned connecting member 2 can be set as two plug rods, one end of the two plug rods are respectively fixedly connected to the two sides of the lower surface of the rotating member 1 and are symmetrically arranged with the axis of the rotating member 1 as the symmetry axis, and the other ends of the two plug rods extend downward along the axis direction of the rotating member 1 and move up and down to be inserted into the two sides of the head end of the rotating reciprocating member 3; a rotating shaft 11 is coaxially fixedly connected to the middle part of the lower surface of the rotating member 1, and the lower end of the rotating shaft 11 is moved up and down to be inserted into the middle part of the head end of the rotating reciprocating member 3. The arrangement of the two plug rods and the rotating shaft 11 allows the rotating reciprocating member 3 to move freely up and down along the axis of the rotating member 1.

[0035] Among them, the fixed disk 4 is fixedly arranged on the head 7 of the dental mobile phone and is coaxially arranged below the rotating reciprocating part 3; the reciprocating component 5 is arranged on the fixed disk 4 and connected to the rotating reciprocating part 3, and the reciprocating component 5 can intermittently move the rotating reciprocating part 3 upward under the rotation of the rotating reciprocating part 3; the elastic member 6 is arranged on the upper side of the rotating reciprocating part 3 and connects the rotating reciprocating part 3 and the rotating member 1, and when the reciprocating component 5 stops moving the rotating reciprocating part 3 upward, the elastic member 6 can move the rotating reciprocating part 3 downward; specifically, the elastic member 6 can be set as a compression spring sleeved on the rotating shaft 11.

[0036] When the present embodiment is in use, the needle 31 of the dental handpiece is first brought close to the target area (such as caries, tartar, etc.), and then the dental handpiece is fixed, and then the rotating member 1 is driven to rotate by the dental handpiece. The rotation of the rotating member 1 drives the rotating reciprocating member 3 to rotate synchronously through the connecting member 2. When the rotating reciprocating member 3 rotates, the rotating reciprocating member 3 reciprocates up and down through the alternating action of the reciprocating assembly 5 and the elastic member 6, thereby causing the needle 31 of the dental handpiece to perform a rotating reciprocating motion, thereby replacing the manual touch operation.

[0037] Specifically, the reciprocating assembly 5 includes an eccentric bevel gear 54 and a fixed bevel gear 55; the eccentric bevel gear 54 is vertically rotatably connected to the outer peripheral surface of the rod end of the rotating reciprocating member 3; the fixed bevel gear 55 is horizontally coaxially fixedly connected to the upper surface of the fixed plate 4, and the eccentric bevel gear 54 and the fixed bevel gear 55 are transmission-connected, and the rotation of the eccentric bevel gear 54 and the restoring deformation of the elastic member 6 can alternately act on the rotating reciprocating member 3, so that the rotating reciprocating member 3 reciprocates up and down. The eccentric bevel gear 54 is close to the rotating reciprocating member 3 to reduce the rotation speed of the eccentric bevel gear 54.

[0038] The specific working principle of the reciprocating assembly 5 is as follows:

[0039] When the rotating reciprocating member 3 rotates, the eccentric bevel gear 54 performs circular motion with the rotating reciprocating member 3 around the axis of the rotating reciprocating member 3. Since the eccentric bevel gear 54 is transmission-connected to the fixed bevel gear 55 and the fixed bevel gear 55 is fixedly arranged, the eccentric bevel gear 54 also rotates under the action of the fixed bevel gear 55 during the circular motion. Since the center of the eccentric bevel gear 54 does not coincide with the rotating shaft 11, the eccentric bevel gear 54 can convert the rotary motion into linear motion when it rotates. When the rotating shaft 11 of the eccentric bevel gear 54 is closest to the fixed bevel gear 55, the rotation of the eccentric bevel gear 54 can drive the rotating reciprocating member 3 to move upward. During the upward movement of the rotating reciprocating member 3, the elastic member 6 is continuously compressed to store energy of the elastic member 6 until the rotating shaft 11 of the eccentric bevel gear 54 is farthest from the fixed bevel gear 55. The eccentric bevel gear 54 stops moving the rotating reciprocating member 3 upward, so that the elastic member 6 is no longer compressed and releases energy, thereby moving the rotating reciprocating member 3 downward, driving the eccentric bevel gear 54 to rotate and return to its original state. By repeating the above process, the eccentric bevel gear 54 and the elastic member 6 can act on the reciprocating member 3 alternately, so that the reciprocating member 3 can reciprocate up and down without affecting the rotation of the reciprocating member 3.

[0040] Since the eccentric bevel gear 54 performs circular motion with the rotating reciprocating member 3 with the axis of the rotating reciprocating member 3 as the center, the eccentric bevel gear 54 itself also rotates during the circular motion. Therefore, when the speed of the eccentric bevel gear 54 performing circular motion is fixed, the closer the eccentric bevel gear 54 is to the rotating reciprocating member 3, the shorter the circumference of its circular motion, and the fewer times the eccentric bevel gear 54 needs to rotate when performing a circular motion, so that the rotation speed of the eccentric bevel gear 54 is also slower. Similarly, the larger the diameter of the eccentric bevel gear 54, the longer its own circumference, and the fewer times the eccentric bevel gear 54 needs to rotate when performing a circular motion, so that the rotation speed of the eccentric bevel gear 54 is also slower.

[0041] As is known to all, the rotation speed of dental handpieces is usually relatively high. Even for low-speed models of dental handpieces, the rotation speed per minute is between several thousand and 30,000 revolutions per minute, which means that the rotation speed of the eccentric bevel gear 54 in circular motion is also relatively high. The rotation speed of the eccentric bevel gear 54 itself is proportional to the rotation speed of the eccentric bevel gear 54 in circular motion. If the rotation speed of the eccentric bevel gear 54 itself is too high, the reciprocating member 3 will reciprocate too fast, and the needle 31 will touch too fast and the touch frequency will be too high, which may easily cause damage to the teeth. Therefore, the position of the eccentric bevel gear 54 can be set so that the side is close to the vertical side (lower end) of the rotating reciprocating part 3 to reduce the circumference of the circular motion of the eccentric bevel gear 54, and the top of the eccentric bevel gear 54 is set close to the horizontal side (upper end) of the rotating reciprocating part 3 to increase the diameter of the eccentric bevel gear 54 and thus increase the circumference of the eccentric bevel gear 54. In this way, the number of times the eccentric bevel gear 54 needs to rotate each time it makes a circular motion can be reduced, thereby reducing the rotation speed of the eccentric bevel gear 54 and preventing the needle 31 from touching too quickly and the touching frequency from being too high.

[0042] Example 2

[0043] Please refer to Figure 4 and Figure 5 , please refer to Figure 1-3 The rotating mechanism provided in this embodiment includes a rotating member 1, a connecting member 2, a rotating reciprocating member 3, a fixed disk 4, a reciprocating assembly 5 and an elastic member 6.

[0044] The rotating member 1 is axially fixedly arranged in the dental handpiece and driven to rotate by the dental handpiece. The rotating member 1 is connected to the rotating reciprocating member 3 located below the rotating member 1 through the connecting member 2. The cross section of the rotating reciprocating member 3 can be set to be T-shaped, the head end of the rotating reciprocating member 3 is horizontally extended, the rod end of the rotating reciprocating member 3 is vertically extended, the rod end of the rotating reciprocating member 3 is used to connect the needle 31 of the dental handpiece or directly adopts the structure design of the needle 31. The rotating reciprocating member 3 is coaxially arranged with the rotating member 1. When the rotating member 1 rotates, the rotating reciprocating member 3 can be driven to rotate synchronously through the connecting member 2, thereby driving the needle 31 to rotate. Specifically, the above-mentioned connecting member 2 can be set as two plug rods, one end of the two plug rods are respectively fixedly connected to the two sides of the lower surface of the rotating member 1 and are symmetrically arranged with the axis of the rotating member 1 as the symmetry axis, and the other ends of the two plug rods extend downward along the axis direction of the rotating member 1 and move up and down to be inserted into the two sides of the head end of the rotating reciprocating member 3; a rotating shaft 11 is coaxially fixedly connected to the middle part of the lower surface of the rotating member 1, and the lower end of the rotating shaft 11 is moved up and down to be inserted into the middle part of the head end of the rotating reciprocating member 3. The arrangement of the two plug rods and the rotating shaft 11 allows the rotating reciprocating member 3 to move freely up and down along the axis of the rotating member 1.

[0045] Among them, the fixed disk 4 is fixedly arranged on the head 7 of the dental mobile phone and is coaxially arranged below the rotating reciprocating part 3; the reciprocating component 5 is arranged on the fixed disk 4 and connected to the rotating reciprocating part 3, and the reciprocating component 5 can intermittently move the rotating reciprocating part 3 upward under the rotation of the rotating reciprocating part 3; the elastic member 6 is arranged on the upper side of the rotating reciprocating part 3 and connects the rotating reciprocating part 3 and the rotating member 1, and when the reciprocating component 5 stops moving the rotating reciprocating part 3 upward, the elastic member 6 can move the rotating reciprocating part 3 downward; specifically, the elastic member 6 can be set as a compression spring sleeved on the rotating shaft 11.

[0046] When the present embodiment is in use, the needle 31 of the dental handpiece is first brought close to the target area (such as caries, tartar, etc.), and then the dental handpiece is fixed, and then the rotating member 1 is driven to rotate by the dental handpiece. The rotation of the rotating member 1 drives the rotating reciprocating member 3 to rotate synchronously through the connecting member 2. When the rotating reciprocating member 3 rotates, the rotating reciprocating member 3 reciprocates up and down through the alternating action of the reciprocating assembly 5 and the elastic member 6, thereby causing the needle 31 of the dental handpiece to perform a rotating reciprocating motion, thereby replacing the manual touch operation.

[0047] Specifically, the reciprocating assembly 5 comprises a column 51, a turntable 52 and a support screw 53; the upper end of the column 51 is fixedly connected to the outer periphery of the lower surface of the head end of the rotating reciprocating member 3, and the lower end of the column 51 abuts against the outer periphery of the upper surface of the fixed disk 4, and the end surface of the column 51 in contact with the fixed disk 4 is set to be a hemispherical surface; the turntable 52 is tilted and connected to one end of the fixed disk 4 by a hinge, and the tilted setting of the turntable 52 and the recovery deformation of the elastic member 6 can alternately act on the rotating reciprocating member 3, so that the rotating reciprocating member 3 reciprocates up and down. The support screw 53 is threadedly connected to the other end of the fixed disk 4, the upper end of the support screw 53 is a vertical screw, and the lower end is a knob for conveniently rotating the screw. The screw penetrates the threaded connection to the fixed disk 4, and the upper end of the screw is welded with a cross bar 531 abutting against the free end of the turntable 52, and the cross bar 531 can increase the contact area between the support screw 53 and the turntable 52, thereby improving the stability of the turntable 52. During use, the length of the upper end of the support screw 53 extending out of the fixed disk 4 is adjusted by rotating the support screw 53, thereby adjusting the tilt angle of the turntable 52, thereby achieving the effect of adjusting the reciprocating stroke of the rotating reciprocating member 3.

[0048] The specific working principle of the reciprocating assembly 5 is as follows:

[0049] When the reciprocating member 3 rotates, the column 51 moves in a circle with the reciprocating member 3 with the axis of the reciprocating member 3 as the center. Since the lower end of the column 51 abuts against the outer periphery of the upper surface of the fixed disk 4 and the turntable 52 is tilted, when the column 51 moves from the connecting end of the turntable 52 to the free end along the circumference of the turntable 52, the turntable 52 can move the reciprocating member 3 upward through the height difference formed by the tilted setting. During the upward movement of the reciprocating member 3, the elastic member 6 is continuously compressed to store energy in the elastic member 6 until the column 51 moves to the highest point in contact with the turntable 52, and the turntable 52 stops moving the reciprocating member 3 upward, so that the elastic member 6 is no longer compressed and releases energy, and then moves the reciprocating member 3 downward, driving the column 51 to move and return to its original state. Repeating the above process, the turntable 52 and the elastic member 6 can act on the reciprocating member 3 alternately, so that the reciprocating member 3 reciprocates up and down without affecting the rotation of the reciprocating member 3.

[0050] When the depth of the dental handpiece touching needs to be adjusted according to different dental treatments, first bring the needle 31 of the dental handpiece close to the target area, then fix the dental handpiece, perform a trial touch, then remove the dental handpiece, compare the trial touch depth with the actual touch depth, and then adjust the reciprocating stroke of the needle 31 to adapt to the required touch depth; the specific adjustment method is to rotate the support screw 53 to adjust the length of the upper end of the support screw 53 extending out of the fixed disk 4, thereby adjusting the inclination angle of the turntable 52, and then adjusting the reciprocating stroke of the rotating reciprocating member 3; after adjustment, put the dental handpiece back to its original position and fix it, then start the dental handpiece for formal touch, and finally the touch depth is suitable for the needs of dental treatment. Compared with the method of adjusting the distance between the needle 31 and the target area by repeatedly adjusting the fixed position of the dental handpiece to adjust the touch depth of the needle 31, this embodiment adjusts the touch depth of the needle 31 by directly adjusting the reciprocating stroke of the needle 31, which is more accurate, does not need to change the fixed position of the dental handpiece, and is more convenient to use.

[0051] Please refer to Figure 6 In one embodiment of a dental mobile phone provided by the present invention, the dental mobile phone includes a handpiece 7 and a handle 8 connected to each other, a wind wheel is rotatably provided in the handpiece 7, a needle 31 is penetrated through the bottom wall of the handpiece 7, and a two-way air duct 82 connected to the wind wheel is opened in the handle 8 along the length direction, and the air duct 82 conveys compressed air to the wind wheel, and the compressed air drives the wind wheel to rotate at a high speed and then enters the air duct 82 from the direction of rotation of the wind wheel, and is output to the outside of the dental mobile phone; the above structure belongs to the conventional design of the existing dental mobile phone, and does not belong to the subject protected by the present invention. Its specific working principle will not be repeated here. What is important is that the dental mobile phone also includes the above-mentioned rotating mechanism, which is arranged in the handpiece 7; the above-mentioned wind wheel is the rotating part 1 of the rotating mechanism, the above-mentioned needle 31 is the rod end of the rotating reciprocating part 3 of the rotating mechanism, and the bottom wall of the handpiece 7 is the fixed disk 4 of the rotating mechanism.

[0052] Specifically, a ball bearing 9 located above the rotating part 1 is fixedly connected to the top of the head 7, and the rotating part 1 is installed on the ball bearing 9. The presence of the balls of the ball bearing 9 transforms the contact surface from sliding friction to rolling friction, thereby significantly reducing the rotational friction of the rotating part 1, which is suitable for the high-speed operation of the wind wheel of the dental mobile phone.

[0053] Specifically, the head end of the rotating reciprocating member 3 can be set in a cylindrical shell shape, the connecting member 2 and the rotating shaft 11 pass through the top wall of the head end of the rotating reciprocating member 3 and extend into the interior of the head end of the rotating reciprocating member 3, and the inner top wall of the head end of the rotating reciprocating member 3 has a guide short tube corresponding to the connecting member 2 and the rotating shaft 11 respectively, and the guide short tube extends downward and is integrally connected with the rotating reciprocating member 3; the connecting member 2 and the rotating shaft 11 are respectively moved up and down and inserted into the guide short tube; the shell structure design of the rotating reciprocating member 3 can reduce the overall weight of the dental mobile phone and facilitate operation.

[0054] Specifically, the head end of the rotating reciprocating member 3 is connected to the machine head 7 by an up and down sliding seal through a sliding seal; a water vapor channel 81 is opened in the machine handle 8 along the length direction, and the water vapor channel 81 is connected to the interval space between the head end of the rotating reciprocating member 3 and the fixed disk 4. The water vapor channel 81 is used to transport water vapor to the above-mentioned interval space. The water vapor transported to the interval space is sprayed out through the gap between the rod end of the rotating reciprocating member 3 and the fixed disk 4, so as to clean the powder residue generated during the drilling and grinding process of the needle 31. Since the rotary reciprocating member 3 reciprocates, and the head end of the rotary reciprocating member 3 is slidingly sealed and connected to the machine head 7, when the rotary reciprocating member 3 reciprocates, water vapor is intermittently sprayed out under the driving action of the head end of the rotary reciprocating member 3. This instantaneous spraying method has an extremely short spraying time each time, which can quickly release water vapor and form a strong spraying force to effectively clean up powder residues; and due to the high-speed rotation of the rotary reciprocating member 3, the head end of the rotary reciprocating member 3 can stir the water vapor in the interval space, so that the water vapor spraying process can produce a uniform spray or spray effect, ensuring that the water vapor is evenly distributed and can effectively cover the target area, thereby improving the cleaning effect.

[0055] Please refer to Figure 7 In another embodiment of a dental mobile phone provided by the present invention, the difference between the dental mobile phone and the above-mentioned embodiment lies in that a ball bearing 9 is fixedly connected to the outer bottom wall of the handpiece 7, and the rod end of the rotating reciprocating member 3 is installed on the ball bearing 9. The ball bearing 9 cooperates with the ball bearing 9 installed on the top of the handpiece 7 to improve the stability of the above-mentioned rotating mechanism; a plurality of through holes 41 are opened along the circumferential direction on the outer periphery of the bottom wall of the handpiece 7, and water vapor can be better sprayed out through the through holes 41.

[0056] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A rotating mechanism, characterized in that: The invention comprises a rotating member (1), a connecting member (2), a rotating reciprocating member (3), a fixed disk (4), a reciprocating assembly (5) and an elastic member (6); the rotating member (1) is axially fixedly arranged, the rotating member (1) is connected to the rotating reciprocating member (3) via the connecting member (2) to drive the rotating reciprocating member (3) to rotate; the fixed disk (4) is fixedly arranged below the rotating reciprocating member (3); the reciprocating assembly (5) is arranged on the fixed disk (4) and connected to the rotating reciprocating member (3); the reciprocating assembly (5) can be arranged on the rotating disk The reciprocating member (3) is intermittently moved upward under the action of rotation; the elastic member (6) is arranged on the upper side of the reciprocating member (3) and connects the reciprocating member (3) and the rotating member (1); when the reciprocating assembly (5) stops moving the reciprocating member (3) upward, the elastic member (6) can move the reciprocating member (3) downward; when the reciprocating member (3) rotates, the reciprocating member (3) performs reciprocating motion up and down through the alternating action of the reciprocating assembly (5) and the elastic member (6).

2. The rotating mechanism according to claim 1, characterized in that: The connecting member (2) is two plug rods, one end of the two plug rods is fixedly connected to the two sides of the lower surface of the rotating member (1), and the other end of the two plug rods is moved up and down and plugged into the rotating reciprocating member (3).

3. The rotating mechanism according to claim 1, characterized in that: The cross section of the rotary reciprocating member (3) is T-shaped.

4. The rotating mechanism according to claim 1, characterized in that: The reciprocating assembly (5) comprises a column (51), a rotating disk (52) and a supporting screw (53); the upper end of the column (51) is fixedly connected to the outer periphery of the head end of the rotating reciprocating member (3), and the lower end of the column (51) abuts against the upper surface of the fixed disk (4); the rotating disk (52) is tilted and connected to one end of the fixed disk (4) for vertical rotation; the supporting screw (53) is threadedly connected to the other end of the fixed disk (4), and the upper end of the supporting screw (53) abuts against the free end of the rotating disk (52).

5. The rotating mechanism according to claim 1, characterized in that: The reciprocating assembly (5) comprises an eccentric bevel gear (54) and a fixed bevel gear (55); the eccentric bevel gear (54) is vertically rotatably connected to the rod end of the rotating reciprocating member (3); the fixed bevel gear (55) is horizontally fixedly connected to the fixed disk (4), and the eccentric bevel gear (54) and the fixed bevel gear (55) are transmission-connected; the eccentric bevel gear (54) is close to the rotating reciprocating member (3).

6. The rotating mechanism according to claim 1, characterized in that: A rotating shaft (11) is coaxially fixedly connected to the middle of the lower surface of the rotating member (1), and the lower end of the rotating shaft (11) is inserted into the rotating reciprocating member (3) so as to move up and down; the elastic member (6) is a compression spring, and the compression spring is sleeved on the rotating shaft (11).

7. A dental handpiece using the rotating mechanism according to any one of claims 1 to 6, comprising a handpiece (7) and a handpiece handle (8) connected to each other, wherein a wind wheel is rotatably arranged in the handpiece (7), and a needle (31) is penetrated through the bottom wall of the handpiece (7), characterized in that: It also includes the rotating mechanism, which is arranged in the machine head (7); the wind wheel is the rotating part (1) of the rotating mechanism, the needle (31) is the rod end of the rotating reciprocating part (3) of the rotating mechanism, and the bottom wall of the machine head (7) is the fixed disk (4) of the rotating mechanism.

8. The dental handpiece according to claim 7, characterized in that: A ball bearing (9) is provided in the machine head (7) and is located above the rotating member (1), and the rotating member (1) is mounted on the ball bearing (9).

9. The dental handpiece according to claim 7, characterized in that: The head end of the rotating reciprocating member (3) is in the shape of a cylindrical shell.

10. The dental handpiece according to claim 7, characterized in that: The head end of the rotating reciprocating member (3) is slidably and sealedly connected in the machine head (7) up and down; a water vapor channel (81) is provided in the machine handle (8), and the water vapor channel (81) communicates with the interval space between the head end of the rotating reciprocating member (3) and the fixed disk (4).

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