Dental torque wrench
By employing a deformable wrench ring and indicator plate structure in the dental torque wrench, torque control is simplified, solving the problems of complex structure and difficult cleaning and disinfection of existing dental torque wrenches, and achieving low cost and easy maintenance.
Patent Information
- Application Number
- CN202422430771.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-09
AI Technical Summary
Existing dental torque wrenches are complex in structure, expensive, and require cumbersome cleaning and sterilization processes.
A deformable wrench ring replaces the ratchet structure, and combined with an indicator plate and adapter, the torque is indicated by the indicator plate, simplifying torque control.
This invention achieves a dental torque wrench that is simple in structure, low in cost, easy to clean and disinfect, and has low usage and maintenance costs.
Smart Images
Figure CN223489870U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oral treatment equipment technology, specifically a dental torque wrench. Background Technology
[0002] A dental torque wrench is a tool used in dental implant surgery to help dentists accurately control the applied torque when implanting the implant. A typical torque wrench includes a handle, torque adjustment mechanism, ratchet connector, and other components, comprising several relatively delicate parts, which increases its cost. Furthermore, the cleaning and sterilization process requires considerable time to thoroughly disinfect even small areas, making the cleaning process quite complex. Utility Model Content
[0003] The purpose of this invention is to provide a dental torque wrench to solve the problems existing in the prior art.
[0004] To achieve the above objectives, the present invention provides a dental torque wrench, including a wrench ring and a wrench main arm; the wrench ring is provided at the front end of the wrench main arm, the wrench ring is circular, a notch is provided on the side near the wrench main arm, a protruding tooth is provided on the side of the notch, and a thinning part is provided in front of the protruding tooth.
[0005] Preferably, the wrench also includes an upper arm and a lower arm, the main arm of the wrench is 1-3cm long, and the ends away from the wrench ring are respectively provided with an upper arm and a lower arm, with a gap between the upper arm and the lower arm.
[0006] Preferably, an indicator plate is provided on the side of the lower arm of the wrench away from the main arm of the wrench, the other end of the indicator plate points to the upper arm of the wrench and extends above the upper arm of the wrench, and an indicator is provided on the indicator plate.
[0007] Preferably, the upper arm of the wrench has a groove in the area below the indicator plate.
[0008] Preferably, the upper arm of the wrench is larger than the lower arm of the wrench on the side closer to the main arm.
[0009] Preferably, the dental torque wrench further includes an adapter, which includes a main body, several axial protrusions, a lower limiting ring, and an implant interface; the main body is cylindrical, with an array of axial protrusions distributed on the upper outer surface, the axial protrusions engaging with protrusion teeth, a lower limiting ring on the lower outer surface of the main body, and an implant interface at the bottom of the main body.
[0010] This invention replaces the ratchet structure in existing torque wrenches with a deformable wrench ring. For torque indication, it employs a simpler method: an indicator plate on the lower arm shows the deformation of the lower arm relative to the upper arm, and the torque can be determined through calibration. This torque wrench has the advantages of simple structure, low manufacturing cost, easy cleaning and disinfection, and low maintenance cost. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall scheme of one embodiment of the present utility model.
[0012] Figure 2 This is a partially enlarged schematic diagram of the wrench ring area of this utility model.
[0013] Figure 3 This is a top view schematic diagram of the connection between the wrench ring and the adapter of this utility model.
[0014] Figure 4 This is a schematic diagram of the overall scheme of another embodiment of the present utility model. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] As attached Figure 1-3 As shown, the dental torque wrench of this utility model includes a wrench ring 1, a wrench main arm 2, a wrench upper support arm 3, a wrench lower support arm 4, and an adapter 5.
[0017] The front end of the main arm 2 of the wrench is provided with a wrench ring 1. The wrench ring 1 is circular in shape. A notch 11 is provided on the side near the main arm 2 of the wrench. A protruding tooth 12 is provided on the side of the notch 11. A thinning part 13 is provided in front of the protruding tooth 12. The wall thickness of the wrench ring at the thinning part 13 is relatively thinner than other areas.
[0018] Furthermore, a groove 14 is provided in front of the protruding tooth 12.
[0019] The above structure achieves a ratchet-like function. When tightened, the protruding tooth 12 engages with the protrusion on the tightening bit or adapter 5 to lock it in place. When the wrench is rotated, the protruding tooth 12 pulls the tightening bit or adapter 5 to tighten it due to the pulling force. When rotated in the opposite direction, the presence of the thinned part 13 makes this area more susceptible to deformation under force, allowing the protrusion on the tightening bit or adapter 5 to push the protruding tooth 12 of the wrench ring 1 outward, thus separating the wrench ring 1 from the tightening bit or adapter 5.
[0020] The wrench ring 1 and the wrench main arm 2 can be integrally formed metal materials or composite materials. For example, the wrench ring 1 from the thinned part 13 to the protruding tooth 12 can be made of non-metallic materials, such as plastic materials mixed with carbon fiber, to obtain better elasticity and make it easier to change shape under the push of the tightening bit or adapter 5.
[0021] To further improve the accuracy of tightening force control, the main arm 2 of the wrench is 1-3cm long, and the end away from the wrench ring 1 is provided with an upper support arm 3 and a lower support arm 4, wherein the part away from the protruding teeth 12 is the upper support arm 3.
[0022] A gap is provided between the upper arm 3 and the lower arm 4 of the wrench. An indicator plate 41 is provided on the side of the lower arm 4 or the upper arm 3 away from the main arm 2 of the wrench. In the attached figure, it is provided on the lower arm 4 of the wrench. The other end of the indicator plate 41 points to the upper arm 3 of the wrench and extends above the upper arm 3 of the wrench. An indicator is provided on the indicator plate 41.
[0023] When in use, the lower arm 4 of the wrench is manually operated, and the lower arm 4 bends under force. The deformation of the lower arm 4 relative to the upper fixed rod can be indicated by an indicator plate set on the lower arm 4, and the torque can be determined by calibration.
[0024] Furthermore, a groove 31 is provided in the area below the indicator plate 41 on the support arm 3 of the wrench, and the indicator plate 41 is located in the groove 31, which makes it easier to observe the deformation.
[0025] Furthermore, to increase the deformation range, the upper support arm 3 of the wrench is larger than the lower support arm 4 on the side closer to the main arm 2, making the lower support arm 4 more susceptible to deformation under stress.
[0026] To accommodate the shape of the implant, the dental torque wrench also includes an adapter 5, which includes a main body 51, several axial protrusions 52, a lower limiting ring 53, and an implant interface 54.
[0027] The main body 51 is cylindrical, and an array of axial protrusions 52 are provided on the upper outer side. The axial protrusions 52 cooperate with the protrusion teeth 12. A lower limit ring 53 is provided on the outer side of the main body 51 below the axial protrusions 52 to limit the relative position of the wrench ring 1 and the adapter 5. An implant interface 54 is provided at the bottom of the main body 51, which can be a commonly used screw thread for implants.
[0028] Furthermore, both the adapter 5 and the wrench ring 1 are equipped with permanent magnets to achieve a magnetically detachable connection.
[0029] In the above scheme, the main arm 2, upper arm 3, and lower arm 4 of the wrench can be integrally formed. However, balancing the overall strength, the lower arm 4, and the deformation range at the thinned part of the wrench ring 1, among other factors, can easily lead to higher requirements for material properties, as shown in the attached diagram. Figure 4 This application also provides another embodiment as follows.
[0030] The dental torque wrench includes a wrench ring 1, a wrench main arm 2, a force-applying arm b3, and an adapter 5.
[0031] The lever arm b3 is fixed to the main arm 2 of the wrench by bolts. An indicator plate b31 is provided on the side of the lever arm b3 or the main arm 2 away from the main arm 2. The lever arm b3 has a narrowing section near its connection with the main arm 2 to improve its deformation capacity.
[0032] It should be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
Claims
1. A dental torque wrench, characterized in that, It includes a wrench ring and a wrench main arm; the wrench main arm is provided with a wrench ring at the front end, the wrench ring is circular, a notch is provided on the side near the wrench main arm, a protruding tooth is provided on the side of the notch, and a thinning part is provided in front of the protruding tooth.
2. The dental torque wrench according to claim 1, characterized in that, It also includes an upper arm and a lower arm of the wrench. The main arm of the wrench is 1-3cm long, and the ends away from the wrench ring are respectively provided with an upper arm and a lower arm of the wrench, with a gap between the upper arm and the lower arm of the wrench.
3. The dental torque wrench according to claim 2, characterized in that, An indicator plate is provided on the side of the lower arm of the wrench away from the main arm of the wrench. The other end of the indicator plate points to the upper arm of the wrench and extends above the upper arm of the wrench. An indicator is provided on the indicator plate.
4. The dental torque wrench according to claim 3, characterized in that, The upper arm of the wrench has a groove in the area below the indicator plate.
5. The dental torque wrench according to claim 2, characterized in that, On the side closer to the main arm of the wrench, the upper arm of the wrench is larger than the lower arm of the wrench.
6. The dental torque wrench according to claim 1, characterized in that, The dental torque wrench also includes an adapter, which includes a main body, several axial protrusions, a lower limiting ring, and an implant interface. The main body is cylindrical, with an array of axial protrusions on its upper outer surface. The axial protrusions engage with protrusion teeth. A lower limiting ring is provided on the lower outer surface of the main body, and an implant interface is provided at the bottom of the main body.