Dental handpiece

Abstract

The utility model relates to the technical field of oral treatment instruments, in particular to a dental handpiece which comprises a cutting piece used for cutting teeth, an angle adjusting assembly used for adjusting the rotating angle of the cutting piece is arranged outside the cutting piece, and a positioning assembly used for fixing the rotating angle of the cutting piece is arranged inside the angle adjusting assembly. The angle adjusting assembly comprises a rotating block, the two sides of the rotating block are rotationally connected to one end of a round rod, the outer portion of the round rod is slidably connected to an inner ring of a sliding sleeve in an inserted mode, one side of the sliding sleeve is rotationally connected to one end of a transmission rod, and the other end of the transmission rod is rotationally connected to one side of a connecting plate; by using the angle adjusting assembly, the motor and the machine needle can rotate, so that the angle of the machine needle can be adjusted; when the dental handpiece is used, the tooth cutting angle is easy to control, and the use convenience of the dental handpiece is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral treatment instruments, in particular to a dental mobile phone. Background Art

[0002] Dental handpieces, also known as dental drills, are basic medical equipment in the dental department. In the field of dental clinics, they are mainly used to clean teeth with caries, to drill holes in teeth with pulpitis and apical periodontitis, and to grind the abutment teeth of people with missing teeth who need to have replacements. In short, any project that requires opening holes, drilling, grinding, and cutting on the tooth body requires the use of dental handpieces.

[0003] Application number: CN202311473027.8, "A dental handpiece", can transmit driving force to a rotating reciprocating structure through a handle, thereby driving the dental bur to rotate synchronously through the rotating reciprocating structure, and at the same time driving the dental bur to reciprocate along the straight line where the center axis of the handpiece shell is located through the rotating reciprocating structure; therefore, the dental bur of the dental handpiece can automatically move along the longitudinal depth of the tooth during the drilling process, instead of relying on the doctor's personal experience and strength to control the longitudinal depth of the drilling, the doctor can drill the teeth by holding the handpiece shell in a fixed position, without the need for frequent repeated touch-and-leave actions, which can save the doctor's physical strength, improve the efficiency of drilling, reduce the use time of the dental handpiece, and thereby reduce the fatigue of the dental handpiece, reduce damage, and increase the service life.

[0004] However, the angle of the mouth cleft of Asians is smaller than that of Caucasians, and the needle angle of the above-mentioned dental mobile phone cannot be adjusted, making it difficult to control the angle at which the dental mobile phone cuts the tooth when in use, causing inconvenience in the use of the dental mobile phone. Utility Model Content

[0005] The utility model aims to provide a dental handpiece, which enables the angle of the needle to be adjusted, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned object, the utility model provides the following technical solutions: a dental handpiece, comprising a cutting piece for cutting a tooth, an angle adjustment component for adjusting the rotation angle of the cutting piece is disposed outside the cutting piece, and a positioning component for fixing the rotation angle of the cutting piece is disposed inside the angle adjustment component;

[0007] Among them, the angle adjustment assembly includes: a rotating block, both sides of the rotating block are rotatably connected to one end of a round rod, the outside of the round rod is slidably inserted into the inner ring of a sliding sleeve, one side of the sliding sleeve is rotatably connected to one end of a transmission rod, the other end of the transmission rod is rotatably connected to one side of a connecting plate, and the bottom of the connecting plate is fixedly connected to the top of the rotating block.

[0008] Preferably, a through slot is provided at one end of the round rod, a slot wall of the through slot is rotatably connected to a side portion of the rotating block, and a plurality of groups of positioning blind holes are evenly provided on the outside of the round rod.

[0009] Preferably, a mounting groove for mounting a positioning assembly is provided on one side of the sliding sleeve.

[0010] Preferably, the positioning assembly includes: an outer frame, both sides of the outer frame are fixedly connected to the groove walls of the mounting groove, the interior of the outer frame is sleeved on the side of the pull rod, the top end of the pull rod is fixedly connected to the bottom of the button, the bottom end of the pull rod is fixedly connected to the top end of the pin rod, and the side of the pin rod is inserted into the interior of the outer frame.

[0011] Preferably, a circular through hole 1 is opened at the top of the outer frame, a circular through hole 2 is opened at the bottom of the outer frame, the hole wall of the circular through hole 1 is slidably connected to the side of the pull rod, and the hole wall of the circular through hole 2 is slidably connected to the side of the pin rod.

[0012] Preferably, the side of the pull rod is inserted into the inner ring of the spring, and the two ends of the spring are supported between the top end of the pin rod and the inner wall of the outer frame.

[0013] Preferably, the cutting member comprises: a motor, the exterior of the motor is fixedly connected to one side of the rotating block, and a needle is installed on the output shaft of the motor.

[0014] Preferably, the outer thread of the round rod is connected to the inner ring of the cylinder.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model uses an angle adjustment component to enable the motor and the needle to rotate, thereby making the angle of the needle adjustable; the angle at which the dental mobile phone cuts the tooth body is easy to control when in use, thereby improving the convenience of using the dental mobile phone. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the cutting member structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the positioning component structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the angle adjustment component structure of the utility model.

[0021] In the figure: 1. cutting piece; 2. positioning assembly; 3. angle adjustment assembly; 4. cylinder; 11. motor; 12. needle; 21. button; 22. pull rod; 23. outer frame; 231. circular through hole 1; 232. circular through hole 2; 24. spring; 25. pin rod; 31. rotating block; 32. connecting plate; 33. transmission rod; 34. sliding sleeve; 341. mounting groove; 35. round rod; 351. through groove; 352. positioning blind hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a dental mobile phone, comprising: a cutting piece 1 for cutting a tooth body, an angle adjustment component 3 for adjusting the rotation angle of the cutting piece 1 is arranged outside the cutting piece 1, and a positioning component 2 for fixing the rotation angle of the cutting piece 1 is arranged inside the angle adjustment component 3.

[0024] The angle adjustment assembly 3 includes: a rotating block 31, both sides of the rotating block 31 are rotatably connected to one end of a round rod 35, the outer part of the round rod 35 is slidably inserted into the inner ring of a sliding sleeve 34, one side of the sliding sleeve 34 is rotatably connected to one end of a transmission rod 33, the other end of the transmission rod 33 is rotatably connected to one side of a connecting plate 32, and the bottom of the connecting plate 32 is fixedly connected to the top of the rotating block 31; a through groove 351 is opened at one end of the round rod 35, the groove wall of the through groove 351 is rotatably connected to the side of the rotating block 31, and a plurality of groups of positioning blind holes 352 are evenly opened on the outer part of the round rod 35;

[0025] Furthermore, the angle of the needle 12 is adjusted according to the shape of the patient's mouth. First, the button 21 is pulled away from the outer frame 23. The button 21 drives the pin 25 to move through the pull rod 22, so that the pin 25 compresses the spring 24. At the same time, the pin 25 will be pulled out of the positioning blind hole 352, so that the sleeve 34 can slide on the outside of the round rod 35, pushing the sleeve 34. The sleeve 34 will drive the connecting plate 32 and the rotating block 31 to rotate through the transmission rod 33, and the rotating block 31 will drive the motor 11 and the needle 12 to rotate, so as to change the angle of the needle 12.

[0026] Furthermore, a plurality of groups of positioning blind holes 352 can allow the sliding sleeve 34 to be fixed at different positions outside the round rod 35 , so that the turning needle 12 can be adjusted at different angles, thereby increasing the adjustment range of the angle of the turning needle 12 .

[0027] A mounting groove 341 for mounting the positioning assembly 2 is defined on one side of the sliding sleeve 34 .

[0028] Furthermore, the use of the mounting groove 341 allows the positioning assembly 2 to occupy less space, making the entire dental mobile phone more convenient to use.

[0029] The positioning assembly 2 includes: an outer frame 23, both sides of the outer frame 23 are fixedly connected to the groove wall of the mounting groove 341, the interior of the outer frame 23 is sleeved on the side of the pull rod 22, the top of the pull rod 22 is fixedly connected to the bottom of the button 21, the bottom of the pull rod 22 is fixedly connected to the top of the pin rod 25, and the side of the pin rod 25 is inserted into the interior of the outer frame 23; a circular through hole 1 231 is opened at the top of the outer frame 23, and a circular through hole 232 is opened at the bottom of the outer frame 23, the hole wall of the circular through hole 1 231 is slidably sleeved on the side of the pull rod 22, and the hole wall of the circular through hole 232 is slidably sleeved on the side of the pin rod 25; the side of the pull rod 22 is inserted into the inner ring of the spring 24, and the two ends of the spring 24 are supported between the top of the pin rod 25 and the inner wall of the outer frame 23.

[0030] Furthermore, the button 21 is pulled in a direction away from the outer frame 23, and the button 21 drives the pin rod 25 to move through the pull rod 22, so that the pin rod 25 compresses the spring 24, and at the same time, the pin rod 25 is pulled out of the positioning blind hole 352, so that the sleeve 34 can slide on the outside of the round rod 35; when the needle 12 is adjusted to a suitable angle, the button 21 is released, and at this time the spring 24 rebounds and pushes the pin rod 25 to insert into the positioning blind hole 352, so that the outer frame 23 and the round rod 35 are pinned and fixed together, so that the sleeve 34 cannot slide on the outside of the round rod 35, and the angle of the needle 12 is fixed.

[0031] The cutting member 1 comprises a motor 11 , the exterior of the motor 11 is fixedly connected to one side of the rotating block 31 , and a needle 12 is mounted on the output shaft of the motor 11 .

[0032] Furthermore, the motor 11 drives the needle 12 to rotate, so that the needle 12 can cut the tooth.

[0033] The outer surface of the round rod 35 is threadedly connected to the inner ring of the cylinder 4 .

[0034] Furthermore, when the use length of the dental handpiece needs to be changed, the cylinder 4 can be rotated to change the total length of the round rod 35 and the cylinder 4 .

[0035] Working principle: When in use, first adjust the angle of the needle 12 according to the shape of the patient's oral cavity, first pull the button 21 away from the outer frame 23, the button 21 drives the pin 25 to move through the pull rod 22, so that the pin 25 compresses the spring 24, and at the same time the pin 25 is pulled out of the positioning blind hole 352, so that the sliding sleeve 34 can slide outside the round rod 35, push the sliding sleeve 34, and the sliding sleeve 34 will drive the connecting plate 32 and the rotating block 31 through the transmission rod 33 Rotate, the rotating block 31 drives the motor 11 and the needle 12 to rotate, so as to change the angle of the needle 12; when the needle 12 is adjusted to a suitable angle, release the button 21, and the spring 24 will rebound and push the pin 25 to insert into the positioning blind hole 352, so that the sliding sleeve 34 cannot slide on the outside of the round rod 35, and then the angle of the needle 12 is fixed; when it is necessary to change the use length of the dental mobile phone, the cylinder 4 can be rotated to change the total length of the round rod 35 and the cylinder 4.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dental handpiece, characterized in that: The invention comprises a cutting piece (1) for cutting a tooth, wherein an angle adjustment component (3) for adjusting the rotation angle of the cutting piece (1) is arranged outside the cutting piece (1), and a positioning component (2) for fixing the rotation angle of the cutting piece (1) is arranged inside the angle adjustment component (3); The angle adjustment assembly (3) comprises: a rotating block (31), two sides of the rotating block (31) are rotatably connected to one end of a round rod (35), the outer portion of the round rod (35) is slidably inserted into the inner ring of a sliding sleeve (34), one side of the sliding sleeve (34) is rotatably connected to one end of a transmission rod (33), the other end of the transmission rod (33) is rotatably connected to one side of a connecting plate (32), and the bottom of the connecting plate (32) is fixedly connected to the top of the rotating block (31).

2. A dental handpiece according to claim 1, characterized in that: A through slot (351) is formed at one end of the round rod (35), a slot wall of the through slot (351) is rotatably connected to a side portion of the rotating block (31), and a plurality of groups of positioning blind holes (352) are evenly formed on the outside of the round rod (35).

3. A dental handpiece according to claim 1, characterized in that: A mounting groove (341) for mounting the positioning assembly (2) is provided on one side of the sliding sleeve (34).

4. A dental handpiece according to claim 3, characterized in that: The positioning assembly (2) comprises: an outer frame (23), two sides of the outer frame (23) are fixedly connected to the groove walls of the installation groove (341), the interior of the outer frame (23) is sleeved on the side of the pull rod (22), the top end of the pull rod (22) is fixedly connected to the bottom of the button (21), the bottom end of the pull rod (22) is fixedly connected to the top end of the pin rod (25), and the side of the pin rod (25) is inserted into the interior of the outer frame (23).

5. A dental handpiece according to claim 4, characterized in that: A circular through hole 1 (231) is formed at the top of the outer frame (23), and a circular through hole 2 (232) is formed at the bottom of the outer frame (23). The hole wall of the circular through hole 1 (231) is slidably sleeved on the side of the pull rod (22), and the hole wall of the circular through hole 2 (232) is slidably sleeved on the side of the pin rod (25).

6. A dental handpiece according to claim 5, characterized in that: The side of the pull rod (22) is inserted into the inner ring of the spring (24), and the two ends of the spring (24) are supported between the top end of the pin rod (25) and the inner wall of the outer frame (23).

7. A dental handpiece according to claim 1, characterized in that: The cutting member (1) comprises a motor (11), the exterior of the motor (11) being fixedly connected to one side of the rotating block (31), and a turning needle (12) being mounted on the output shaft of the motor (11).

8. A dental handpiece according to claim 1, characterized in that: The outer thread of the round rod (35) is connected to the inner ring of the cylinder (4).

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