Dental electric torque meter

Abstract

The utility model discloses a dental electric torquemeter, which relates to the technical field of dental medical instruments and comprises a main machine, one end of the main machine is in transmission connection with a bending machine, and one end of the bending machine far away from the main machine is in plug-in connection with a screw; the main machine comprises a motor, and an output shaft of the motor is fixedly connected with a coupler. A battery is arranged at the end, away from the coupler, of the motor and electrically connected with the motor. The motor starts to operate through the on-off key, and the motor working mode can be set through the setting key; compared with a manual torque wrench, the torque of the electric torque meter controlled by the motor is controllable, accurate and calibratable, so that an implant, an abutment, a central screw and the like can be more accurately screwed or unscrewed, the damage to the implant, the abutment, the central screw and the like cannot be caused, and the reliability of the device is improved. Meanwhile, data displayed on a screen can enable medical staff to accurately know the working state of the electric torquemeter, so that the medical staff can use the electric torquemeter with high proficiency, and the smooth proceeding of a dental implant operation is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of dental medical instruments, in particular to a dental electric torque meter. Background Art

[0002] The dental torque wrench is a commonly used instrument in dental implant surgery. It is mainly used to apply a certain torque value to the dental implant in the first-stage dental implant surgery, so that the dental implant can achieve better initial stability. In addition, when repairing the restoration, it is also necessary to loosen or tighten the central screw that fixes the implant and the abutment. During these two clinical operations, there are certain requirements for the accuracy and reversal of the torque applied by the torque wrench.

[0003] There are mainly two types of existing torque wrench solutions. One is an integrated wrench. When changing direction, the wrench needs to be taken out of the patient's mouth, manually rotated 180 degrees, and the wrench connection port or screw direction needs to be changed to achieve the purpose of changing direction. The other type of torque wrench adopts a split type. A pin is added to the main rod or a certain point of the front main rod is flattened to achieve a limit structure. After pulling out the core rod and turning it 180°, reversal can be achieved. However, this type of limit structure is clinically unstable and reliable because the limit structure is short and may cause fatigue fracture and wear after repeated application of torque, and the positioning is not in place or accurate, which increases the clinical operation time and inconvenience.

[0004] All of the above are manual wrenches, which still rely on doctors to control the strength to a certain extent, and the torque is not accurate and the operation is inconvenient. Utility Model Content

[0005] The purpose of the utility model is to provide a dental electric torque meter, the force, direction and speed of which can be adjusted and controlled, so that in implant surgery, the tightening and loosening of implants, bases, central screws, etc. are more efficient and reliable, so as to solve the technical problems raised by the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dental electric torque meter comprises a main unit, one end of which is transmission-connected to a contra-angle handpiece, and the other end of which is away from the main unit is plugged into a screwdriver;

[0008] The host comprises a motor, and a coupling is fixedly connected to the output shaft of the motor; a battery is provided at one end of the motor away from the coupling, and the battery is electrically connected to the motor;

[0009] The described curved mobile phone includes a gearbox, one end of which is drivingly connected to a coupling; the end of the gearbox far from the coupling is drivingly connected to a transmission shaft, and the end of the transmission shaft far from the gearbox is drivingly connected to a movement, and the movement is fixedly connected to the movement and is coaxially arranged with the movement.

[0010] As a further technical solution of the present invention, the gearbox includes a gearbox body. One end of the gearbox body close to the coupling is provided with an input end, and the input end is meshingly connected to the coupling; the end of the gearbox body far from the input end is provided with an output end, and the gearbox body is coaxially arranged with the input end and the output end.

[0011] As a further technical solution of the present invention, the transmission shaft includes a transmission shaft body. One end of the transmission shaft body close to the gearbox body is provided with a first connecting tooth, and the first connecting tooth is meshingly connected to the output end of the gearbox body; the end of the transmission shaft body far from the first connecting tooth is provided with a second connecting tooth, and the transmission shaft body is coaxially arranged with the first connecting tooth and the second connecting tooth.

[0012] As a further technical solution of the present invention, the movement includes a movement body, which is vertically arranged, and the inner side of the movement body is fixedly connected to the upper end of a screwdriver; a gear is fixedly connected to the outer side of the movement body, and the gear is meshingly connected to the second connecting tooth, and the gear is coaxially arranged with the movement body and the screwdriver.

[0013] As a further technical solution of the present invention, an outer shell is provided on the outer side of the transmission shaft; the gearbox is located inside the end of the outer shell close to the motor and is fixedly connected to the outer shell; the movement is located inside the end of the outer shell far from the gearbox, and both ends of the movement are rotatably connected to the inner side of the outer shell through bearings; the outer shell is provided with a through hole for the screwdriver to pass through; a threaded cylinder is provided on the outer side of the transmission shaft, and the outer side of the threaded cylinder is threadedly connected to the inner wall of the outer shell, and both ends of the transmission shaft are rotatably connected to the threaded cylinder through bearings.

[0014] As a further technical solution of the present invention, the motor is located between the top shell and the bottom shell, and the bottom of the top shell is fixedly connected to the top of the bottom shell; a placement groove for placing a battery is provided at the end of the bottom shell far from the motor, and a bottom cover is fixedly connected to the bottom of the bottom shell, and the bottom cover corresponds to the position of the placement groove.

[0015] As a further technical solution of the present invention, a power-on key is embedded at one end of the top shell close to the motor, and a plurality of setting keys are embedded at the other end, and the power-on key and the plurality of setting keys are electrically connected to the motor and the battery.

[0016] As a further technical solution of the present invention, the plurality of setting keys are arranged in a straight line, and a screen is provided between the setting key close to the power-on key and the power-on key, and the screen is embedded in the top shell and is electrically connected to the battery.

[0017] As a further technical solution of the present utility model, a limiting ring is provided at one end of the top shell close to the outer shell. A plurality of connecting grooves are provided on the limiting ring, and the limiting ring is threadedly connected to the top shell and the bottom shell.

[0018] As a further technical solution of the present utility model, a plurality of positioning pins are provided at one end of the outer shell close to the limiting ring, and the plurality of positioning pins respectively correspond to the positions of the plurality of connecting grooves of the limiting ring.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] 1. In the present utility model, when in use, the motor is started through the power-on key, and the working mode of the motor can be set by using the setting key; compared with a manual torque wrench, the torque of the electric torque meter controlled by the motor is controllable, accurate and calibratable, so as to realize more precisely tightening / loosening implants, abutments, central screws, etc., without causing damage to implants, abutments, central screws, etc. At the same time, the data displayed on the screen enables medical staff to accurately know the working state of this electric torque meter in the first time, making it more convenient for medical staff to use and ensuring the smooth progress of dental implant surgery.

[0021] 2. In the present utility model, during the rotation of the motor, the coupling is driven to rotate. The coupling synchronously drives the input end meshed with it to rotate. The input end drives the output end to rotate through the gear set of the gearbox body. Finally, the output end drives the movement core to rotate through the transmission shaft, so that the screw driver on the movement core rotates. The gearbox and the transmission shaft can not only transmit the power of the motor to the movement core, but also reduce the influence of the vibration generated during the operation of the motor on the movement core, thus ensuring that the screw driver does not shake during the rotation process.

[0022] 3. In the present utility model, this electric torque meter has a small volume and can be operated with one hand by medical staff, which is convenient to use; in addition, the smaller volume occupies a smaller area in the patient's oral cavity, so that the field of vision inside the oral cavity is relatively wide, facilitating medical staff to observe the situation inside the patient's oral cavity, and thus increasing the success rate of dental implant surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0024] Figure 2 is in the present utility model Figure 1 top view.

[0025] Figure 3 is in the present utility model Figure 2 A-A cross-sectional view.

[0026] Figure 4 is in the present utility model Figure 1 exploded view.

[0027] Figure 5 is a schematic three-dimensional structure diagram of the main body of the present utility model.

[0028] Figure 6 In the present utility model Figure 5 is a schematic internal structure diagram.

[0029] Figure 7 In the present utility model Figure 6 is a view from another perspective.

[0030] Figure 8 is a diagram showing the positional relationship between the bent handpiece and the screwdriver of the present utility model.

[0031] Figure 9 In the present utility model Figure 8 is a bottom view.

[0032] Figure 10 In the present utility model Figure 9 is a sectional view taken along line A-A.

[0033] Figure 11 In the present utility model Figure 8 is a schematic diagram of a partial structure.

[0034] Figure 12 In the present utility model Figure 11 is a front view.

[0035] Figure 13 is a schematic three-dimensional structure diagram of the transmission shaft of the present utility model.

[0036] Figure 14 is a schematic three-dimensional structure diagram of the gearbox of the present utility model.

[0037] Figure 15 is a connection diagram of the movement and the screwdriver of the present utility model.

[0038] Figure 16 In the present utility model Figure 15 is a sectional view taken along line A-A.

[0039] In the figure: 1 - main body, 2 - bent handpiece, 3 - screwdriver;

[0040] 11 - top shell, 12 - screen, 13 - setting key, 14 - power key, 15 - battery, 16 - motor, 17 - bottom cover, 18 - bottom shell, 19 - limit ring, 10 - coupling, 21 - outer shell, 22 - gearbox, 23 - transmission shaft, 24 - movement, 25 - positioning pin, 26 - threaded barrel;

[0041] 221 - Gearbox body, 222 - Input end, 223 - Output end, 231 - Transmission shaft body, 232 - Connecting tooth 1, 233 - Connecting tooth 2, 241 - Movement body, 242 - Gear. Detailed implementation manner

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figure 1-16 , in the embodiment of the present invention, a dental electric torque meter includes a main body 1, one end of the main body 1 is in transmission connection with a contra-angle handpiece 2, and the end of the contra-angle handpiece 2 away from the main body 1 is inserted with a screwdriver 3;

[0044] The main body 1 includes a motor 16, and a coupling 10 is fixedly connected to the output shaft of the motor 16; a battery 15 is provided at the end of the motor 16 away from the coupling 10, and the battery 15 is electrically connected to the motor 16;

[0045] The contra-angle handpiece 2 includes a gearbox 22, and one end of the gearbox 22 is in transmission connection with the coupling 10; the end of the gearbox 22 away from the coupling 10 is in transmission connection with a transmission shaft 23, and the end of the transmission shaft 23 away from the gearbox 22 is in transmission connection with a movement 24, and the movement 24 is fixedly connected to the movement 24 and is coaxially arranged with the movement 24;

[0046] The gearbox 22 includes a gearbox body 221, an input end 222 is provided at one end of the gearbox body 221 close to the coupling 10, and the input end 222 is meshed with the coupling 10; an output end 223 is provided at the end of the gearbox body 221 away from the input end 222, and the gearbox body 221 is coaxially arranged with the input end 222 and the output end 223;

[0047] The transmission shaft 23 includes a transmission shaft body 231, a connecting tooth 1 232 is provided at one end of the transmission shaft body 231 close to the gearbox body 221, and the connecting tooth 1 232 is meshed with the output end 223 of the gearbox body 221; a connecting tooth 2 233 is provided at the end of the transmission shaft body 231 away from the connecting tooth 1 232, and the transmission shaft body 231 is coaxially arranged with the connecting tooth 1 232 and the connecting tooth 2 233.

[0048] By adopting the above technical solution, during use, the motor 16 is started through the power switch 14, and the working mode of the motor 16 can be set by using the setting key 13; compared with a manual torque wrench, the torque of the electric torque meter controlled by the motor 16 is controllable, accurate and calibratable, so as to realize more precise tightening / loosening of implants, abutments, central screws, etc., without causing damage to implants, abutments, central screws, etc. At the same time, the data displayed on the screen 12 can enable medical staff to accurately know the working state of this electric torque meter in the first time, making it more convenient for medical staff to use and ensuring the smooth progress of dental implant surgery.

[0049] In this embodiment, the movement 24 includes a movement body 241, the movement body 241 is vertically arranged, and the inner side of the movement body 241 is fixedly connected to the upper end of the screwdriver 3; a gear 242 is fixedly connected to the outer side of the movement body 241, and the gear 242 is meshed and connected with the connecting tooth two 233, and the gear 242, the movement body 241 and the screwdriver 3 are coaxially arranged;

[0050] An outer shell 21 is arranged on the outer side of the transmission shaft 23; the gearbox 22 is located inside one end of the outer shell 21 close to the motor 16 and is fixedly connected to the outer shell 21; the movement 24 is located inside one end of the outer shell 21 far from the gearbox 22, and both ends of the movement 24 are rotatably connected to the inner side of the outer shell 21 through bearings; the outer shell 21 is provided with a through hole for the screwdriver 3 to pass through; a threaded cylinder 26 is arranged on the outer side of the transmission shaft 23, and the outer side of the threaded cylinder 26 is threadedly connected to the inner wall of the outer shell 21, and both ends of the transmission shaft 23 are rotatably connected to the threaded cylinder 26 through bearings;

[0051] The motor 16 is located between the top shell 11 and the bottom shell 18, and the bottom of the top shell 11 is fixedly connected to the top of the bottom shell 18; a placement groove for placing the battery 15 is arranged at one end of the bottom shell 18 far from the motor 16, and a bottom cover 17 is fixedly connected to the bottom of the bottom shell 18, and the bottom cover 17 corresponds to the position of the placement groove;

[0052] The power switch 14 is embedded at one end of the top shell 11 close to the motor 16, and a plurality of setting keys 13 are embedded at the other end, and the power switch 14 and the plurality of setting keys 13 are electrically connected to the motor 16 and the battery 15.

[0053] By adopting the above technical solution, during the rotation of the motor 16, the coupling 10 is driven to rotate. The coupling 10 synchronously drives the input end 222 meshed with it to rotate. The input end 222 drives the output end 223 to rotate through the gear set of the gearbox body 221. Finally, the output end 223 drives the movement 24 to rotate through the transmission shaft 23, so that the screwdriver 3 on the movement 24 rotates. The gearbox 22 and the transmission shaft 23 can not only transmit the power of the motor 16 to the movement 24, but also reduce the influence of the vibration generated during the operation of the motor 16 on the movement 24, thereby ensuring that the screwdriver 3 does not shake during the rotation process.

[0054] In this embodiment, the plurality of setting keys 13 are arranged in a straight line, and a screen 12 is provided between the setting key 13 close to the power key 14 and the power key 14. The screen 12 is embedded in the top shell 11 and electrically connected to the battery 15.

[0055] A limiting ring 19 is provided at one end of the top shell 11 close to the outer shell 21. A plurality of connecting grooves are provided on the limiting ring 19. The limiting ring 19 is threadedly connected to the top shell 11 and the bottom shell 18.

[0056] A plurality of positioning pins 25 are provided at one end of the outer shell 21 close to the limiting ring 19. The positions of the plurality of positioning pins 25 correspond to the positions of the plurality of connecting grooves of the limiting ring 19 respectively.

[0057] By adopting the above technical solution, the volume of this electric torque gauge is small, and it can be operated with one hand by medical staff, which is convenient to use. In addition, the smaller volume occupies a smaller area in the patient's oral cavity, so that the field of vision inside the oral cavity is relatively wide, which is convenient for medical staff to observe the situation inside the patient's oral cavity, thereby increasing the success rate of dental implant surgery.

[0058] The working principle of the present utility model is as follows: When in use, the motor 16 is started to operate by the power key 14, and the working mode of the motor 16 can be set by using the setting key 13. Compared with a manual torque wrench, the torque of the electric torque gauge controlled by the motor 16 is controllable, accurate and calibratable, so as to realize more precisely tightening / loosening implants, abutments, central screws, etc., without causing damage to implants, abutments, central screws, etc. At the same time, the data displayed on the screen 12 can enable medical staff to accurately know the working state of this electric torque gauge in the first time, making medical staff use it more proficiently and ensuring the smooth progress of dental implant surgery.

[0059] During the rotation of the motor 16, the coupling 10 is driven to rotate. The coupling 10 synchronously drives the input end 222 engaged therewith to rotate. The input end 222 drives the output end 223 to rotate through the gear set of the gearbox body 221. Finally, the output end 223 drives the movement 24 to rotate through the transmission shaft 23, so that the screwdriver 3 on the movement 24 rotates. The gearbox 22 and the transmission shaft 23 can not only transmit the power of the motor 16 to the movement 24, but also reduce the influence of the vibration generated during the operation of the motor 16 on the movement 24, so as to ensure that the screwdriver 3 does not shake during the rotation process;

[0060] This electric torque meter is small in size and can be operated by medical staff with one hand, which is convenient to use. In addition, the smaller size occupies a smaller area in the patient's oral cavity, so that the field of vision inside the oral cavity is relatively wide, which is convenient for medical staff to observe the situation inside the patient's oral cavity, thereby increasing the success rate of dental implant surgery.

[0061] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. The narrative way of this specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric dental torque meter, characterized in that: It includes a main body (1), one end of the main body (1) is drivingly connected to a bent handpiece (2), and one end of the bent handpiece (2) far from the main body (1) is inserted into a screwdriver (3). The main body (1) includes a motor (16), and a coupling (10) is fixedly connected to the output shaft of the motor (16); a battery (15) is provided at one end of the motor (16) far from the coupling (10), and the battery (15) is electrically connected to the motor (16). The bent handpiece (2) includes a gearbox (22), one end of the gearbox (22) is drivingly connected to the coupling (10); one end of the gearbox (22) far from the coupling (10) is drivingly connected to a transmission shaft (23), and one end of the transmission shaft (23) far from the gearbox (22) is drivingly connected to a movement (24).

2. The dental electric torque meter according to claim 1, characterized in that: The gearbox (22) includes a gearbox body (221), an input end (222) is provided at one end of the gearbox body (221) close to the coupling (10), and the input end (222) is meshed and connected to the coupling (10); an output end (223) is provided at one end of the gearbox body (221) far from the input end (222), and the gearbox body (221) is coaxially arranged with the input end (222) and the output end (223).

3. The dental electric torque meter according to claim 1, characterized in that: The transmission shaft (23) includes a transmission shaft body (231), a connecting tooth one (232) is arranged at one end of the transmission shaft body (231) close to the gearbox body (221), and the connecting tooth one (232) is meshed and connected to the output end (223) of the gearbox body (221); a connecting tooth two (233) is arranged at one end of the transmission shaft body (231) far from the connecting tooth one (232), and the transmission shaft body (231) is coaxially arranged with the connecting tooth one (232) and the connecting tooth two (233).

4. The dental electric torque meter according to claim 1, characterized in that: The movement (24) includes a movement body (241), the movement body (241) is arranged vertically, and the upper end of the movement body (241) is in a press-type snap-in connection with the upper end of the screwdriver (3); a gear (242) is fixedly connected to the outside of the movement body (241), the gear (242) is meshed and connected to the connecting tooth two (233), and the gear (242) is coaxially arranged with the movement body (241) and the screwdriver (3).

5. The dental electric torque meter according to claim 4, characterized in that: A housing (21) is provided outside the transmission shaft (23); the gearbox (22) is located inside one end of the housing (21) close to the motor (16) and is fixedly connected to the housing (21); the movement (24) is located inside one end of the housing (21) far from the gearbox (22), and both ends of the movement (24) are rotatably connected to the inside of the housing (21) through bearings; the housing (21) is provided with a through hole for the screwdriver (3) to pass through; a threaded cylinder (26) is provided outside the transmission shaft (23), the outside of the threaded cylinder (26) is threadedly connected to the inner wall of the housing (21), and both ends of the transmission shaft (23) are rotatably connected to the threaded cylinder (26) through bearings.

6. The dental electric torque meter according to claim 5, characterized in that: The motor (16) is located between the top shell (11) and the bottom shell (18), and the bottom of the top shell (11) is fixedly connected to the top of the bottom shell (18); one end of the bottom shell (18) away from the motor (16) is provided with a placement groove for placing the battery (15), and a bottom cover (17) is fixedly connected to the bottom of the bottom shell (18), and the bottom cover (17) corresponds to the position of the placement groove.

7. The dental electric torque meter according to claim 6, characterized in that: One end of the top shell (11) close to the motor (16) is embedded with a power key (14), and the other end is embedded with a plurality of setting keys (13), and the power key (14) and the plurality of setting keys (13) are electrically connected to the motor (16) and the battery (15).

8. The dental electric torque meter according to claim 7, wherein: The plurality of setting keys (13) are arranged in a straight line, and a screen (12) is provided between the setting key (13) close to the power key (14) and the power key (14). The screen (12) is embedded in the top shell (11) and is electrically connected to the battery (15).

9. The dental electric torque meter according to claim 8, characterized in that: One end of the top shell (11) close to the outer shell (21) is provided with a limit ring (19), and a plurality of connecting grooves are provided on the limit ring (19). The limit ring (19) is threadedly connected to the top shell (11) and the bottom shell (18).

10. The dental electric torque meter according to claim 9, wherein: One end of the outer shell (21) close to the limit ring (19) is provided with a plurality of positioning pins (25), and the plurality of positioning pins (25) respectively correspond to the positions of the plurality of connecting grooves of the limit ring (19).

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