Efficient dental wrench

By designing a high-efficiency dental wrench and utilizing transmission and rotation mechanisms to achieve limitless torque, the problem of insufficient torque in dental implants has been solved, thus improving the efficiency and effectiveness of implant surgery.

CN223759903UActive Publication Date: 2026-01-06FOSHAN BAI SHI DE MEDICAL EQUIP CO LTD
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Patent Information

Application Number
CN202423297526.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-06
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing dental implant torque wrenches are inconvenient to operate in the confined space of the oral cavity, resulting in low surgical efficiency and safety. When the torque is insufficient, it cannot meet the tightening requirements.

Method used

A high-efficiency dental wrench has been designed, including a new head assembly with a rear cover. The core clamp inside the core assembly has a toothed core shell. The torque design achieves unlimited torque through a transmission and rotation mechanism. The torque is transmitted to the implant screwdriver through the transmission mechanism, which drives the screwdriver to rotate within the confined oral cavity space. The rotation of the core shell drives the rotation of the implant screwdriver, which in turn tightens the implant or fixation abutment. The wrench is flexible to operate in the limited space of the oral cavity.

Benefits of technology

It improves the efficiency and effectiveness of implant surgery, solves the problem of insufficient torque, and enables flexible operation in a narrow oral cavity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an efficient dental wrench which comprises a machine head assembly, a machine core assembly, a shell, an assembling mechanism, a positioning mechanism, a rotating shell and a rotating mechanism, the machine core assembly is arranged in the machine head assembly, and the machine core assembly comprises a core clamp inserted into the front end in the machine head assembly. Compared with the prior art, the implant torque wrench has the advantages that a user can operate the implant torque wrench conveniently and freely in a narrow oral cavity space, the implant torque wrench adopts an unlimited torque design, and the problem that when a common torque wrench is insufficient in torque, the implant torque wrench is adopted for assisting in stress application to reinforce an abutment, and the implant torque wrench is not convenient to use. Therefore, the efficiency and the effect of the implantation operation are greatly improved, transmission can be conducted to the implantation screwdriver through a series of transmission by rotating the rotating shell, the implantation screwdriver is rotationally connected to tighten an implantation nail or fix an abutment, and the spanner with the structure can be conveniently and flexibly operated, and the operation efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of dental wrench technology, specifically to a high-efficiency dental wrench. Background Technology

[0002] When performing implant surgery, dentists need to use tools to secure the implants. In the confined space of the oral cavity, if the implant torque wrench is not convenient to use, it can cause significant inconvenience for the dentist during the procedure, prolonging the operation time and reducing surgical safety and efficiency. Furthermore, the torque wrenches used for implants on the market are generally between 35-50 N·cm, which is insufficient for some securing procedures. Insufficient torque can also prevent the implant abutment from being properly positioned.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this invention is to overcome the above-mentioned defects and provide a high-efficiency dental wrench.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a high-efficiency dental wrench, comprising:

[0006] A head assembly, wherein a rear cover is provided at the upper end of the head assembly;

[0007] The movement assembly is disposed inside the head assembly. The movement assembly includes a core clip inserted into the front end of the head assembly. A toothed core shell is fixedly sleeved on the outside of the core clip. The lower end of the core clip extends through the lower end of the head assembly.

[0008] The housing is disposed at the rear end of the head assembly;

[0009] An assembly mechanism is disposed between the head assembly and the housing. The assembly mechanism includes an elbow fixedly connected to the front end of the housing. A connecting sleeve is sleeved on the rear end of the head assembly. The rear end of the connecting sleeve is threadedly connected to the front end of the elbow. A fixing sleeve is fixedly inserted into the rear end of the head assembly. The rear end of the fixing sleeve is inserted into the front end of the elbow.

[0010] A positioning mechanism is disposed between the head assembly and the housing;

[0011] A rotating shell, which is rotatably connected to the rear end of the outer shell;

[0012] A rotating mechanism is disposed between the outer shell and the rotating shell. The rotating mechanism includes a rotating shaft inserted into the middle of the inner surface of the outer shell. The rear end of the rotating shaft is inserted into the middle of the front end of the rotating shell. A gear is fixedly connected to the front end of the rotating shaft.

[0013] The transmission mechanism is located inside the head assembly. The transmission mechanism includes a second rotating shaft that is rotatably inserted into the middle of the fixed sleeve. The front and rear ends of the second rotating shaft extend through the inside of the fixed sleeve. A second gear is fixedly connected to the rear end of the second rotating shaft. The second gear meshes with the front end of a first gear. A third gear is fixedly connected to the front end of the second rotating shaft. The third gear meshes with the rear end of a toothed core shell. The toothed core shell and the third gear are meshed at a 90° angle. The axis of the second rotating shaft is perpendicular to the axis of the core clamp at a 90° angle.

[0014] As an improvement, the upper and lower ends of the inner side of the machine head assembly are fixedly connected to a bearing, and the upper and lower ends of the toothed core shell are fixedly inserted into the inner side of the bearing.

[0015] As an improvement, the positioning mechanism includes a fixed toothed sleeve one that is fixedly sleeved to the rear end of the fixed sleeve, and a fixed toothed sleeve two that is fixedly connected to the front end of the elbow, with the fixed toothed sleeve one meshing with the fixed toothed sleeve two.

[0016] As an improvement, a second bearing is fixedly connected to the front and rear of the inner shell, and a first rotating shaft is fixedly inserted into the middle of the second bearing.

[0017] As an improvement, the front and rear ends of the fixed sleeve are fixedly connected to bearing three, and the rotating shaft two is fixedly inserted into the middle of bearing three.

[0018] As an improvement, a fixing pin is threaded to one side of the upper end of the rotating shell, and the lower end of the fixing pin is threaded to the rotating shaft.

[0019] As an improvement, the back cover is a press-type back cover.

[0020] The advantages of this utility model compared with the prior art are as follows: 1. This utility model allows users to operate conveniently and freely in a narrow oral cavity. The torque wrench for implantation adopts an unlimited torque design, which solves the problem that when the torque of ordinary torque wrenches is insufficient, this torque wrench is used to assist in adding force to reinforce the abutment, thereby greatly improving the efficiency and effect of implantation surgery.

[0021] 2. By rotating the rotating shell, the transmission is transmitted to the implant screwdriver through a series of transmissions, allowing it to rotate and operate in the narrow oral cavity space. By rotating the rotating shell, the implant screwdriver is used to tighten the implant or fix the abutment. In the case of limited oral space, this wrench structure can be operated conveniently and flexibly, improving surgical efficiency. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the structure of a high-efficiency dental wrench according to this utility model. Figure 1 .

[0023] Figure 2 This is a schematic diagram of the structure of a high-efficiency dental wrench according to this utility model. Figure 2 .

[0024] Figure 3 This is a right-side cross-sectional view of a high-efficiency dental wrench according to this utility model.

[0025] Figure 4 yes Figure 3 Enlarged view of area A in the middle.

[0026] Figure 5 This is a partial structural diagram of a high-efficiency dental wrench according to the present invention. Figure 1 .

[0027] Figure 6 yes Figure 5 Enlarged view of area B in the middle.

[0028] Figure 7 This is a partial structural diagram of a high-efficiency dental wrench according to the present invention. Figure 2 .

[0029] Figure 8 This is a partial structural diagram of a high-efficiency dental wrench according to the present invention. Figure 3 .

[0030] Figure 9 This is a partial structural diagram of a high-efficiency dental wrench according to the present invention. Figure 4 .

[0031] As shown in the figure: 1. Head assembly; 2. Rear cover; 3. Mechanism assembly; 31. Core clamp; 32. Toothed core shell; 4. Outer shell; 5. Assembly mechanism; 51. Elbow; 52. Connecting sleeve; 53. Fixing sleeve; 6. Positioning mechanism; 61. Fixing toothed sleeve one; 62. Fixing toothed sleeve two; 7. Rotating shell; 8. Rotating mechanism; 81. Rotating shaft one; 82. Gear one; 9. Transmission mechanism; 91. Rotating shaft two; 92. Gear two; 93. Gear three; 10. Bearing one; 11. Bearing two; 12. Bearing three; 13. Fixing pin. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] A high-efficiency dental wrench includes a head assembly 1, with a rear cover 2 at the upper end of the head assembly 1. The rear cover 2 is a press-type rear cover, and the edge of the rear cover 2 is provided with a buckle for easy pressing and locking onto the upper end of the head assembly 1 for installation and fixation.

[0034] like Figure 4As shown, the head assembly 1 is equipped with a core assembly 3. The core assembly 3 includes a core clip 31 inserted into the front end of the head assembly 1. A toothed core shell 32 is fixedly sleeved on the outside of the core clip 31. The lower end of the core clip 31 extends through the lower end of the head assembly 1 to facilitate the replacement of the implantation screwdriver. The rear cover 2 is used to fix the core assembly 3 from the top. The upper and lower ends of the inner side of the head assembly 1 are fixedly connected to bearings 10. The upper and lower ends of the toothed core shell 32 are fixedly inserted into the inner side of the bearings 10. The toothed core shell 32 can rotate inside the head assembly 1 through the bearings 10, thereby driving the core clip 31 and the implantation screwdriver inside it to rotate.

[0035] The machine head assembly 1 has a housing 4 at its rear end. An assembly mechanism 5 is provided between the machine head assembly 1 and the housing 4. The assembly mechanism 5 includes an elbow 51 fixedly connected to the front end of the housing 4. A connecting sleeve 52 is sleeved on the rear end of the machine head assembly 1, and the rear end of the connecting sleeve 52 is threadedly connected to the front end of the elbow 51. A fixing sleeve 53 is fixedly inserted into the rear end of the machine head assembly 1, and the rear end of the fixing sleeve 53 is inserted into the front end of the elbow 51. A positioning mechanism 6 is provided between the machine head assembly 1 and the housing 4. The positioning mechanism 6 includes a component fixedly sleeved on the rear end of the fixing sleeve 53. The first fixed toothed sleeve 61 is fixedly connected to the end of the elbow 51, and the second fixed toothed sleeve 62 is fixedly connected to the front end of the elbow 51. The first fixed toothed sleeve 61 meshes with the second fixed toothed sleeve 62. When assembling the head assembly 1 and the outer shell 4, the first fixed toothed sleeve 61 and the second fixed toothed sleeve 62 mesh to fix the position. Then, the connecting sleeve 52 is rotated so that the rear end of the connecting sleeve 52 is threadedly connected to the front end of the elbow 51. The rear end of the head assembly 1 is provided with a retaining ring to limit the position of the connecting sleeve 52. The position between the head assembly 1 and the outer shell 4 can be fixed by the connecting sleeve 52.

[0036] A rotating shell 7 is rotatably connected to the rear end of the outer shell 4. A rotating mechanism 8 is provided between the outer shell 4 and the rotating shell 7. The rotating mechanism 8 includes a rotating shaft 81 inserted into the middle of the interior of the outer shell 4. The rear end of the rotating shaft 81 is inserted into the middle of the front end of the rotating shell 7. A fixing pin 13 is threadedly connected to one side of the upper end of the rotating shell 7. The lower end of the fixing pin 13 is threadedly connected to the rotating shaft 81. A bearing 11 is fixedly connected to the front and rear of the interior of the outer shell 4. The rotating shaft 81 is fixedly inserted into the middle of the bearing 11. Therefore, rotating the rotating shell 7 can drive the rotating shaft 81 to rotate. A gear 82 is fixedly connected to the front end of the rotating shaft 81. Rotating the rotating shaft 81 drives the gear 82 to rotate.

[0037] The head assembly 1 is equipped with a transmission mechanism 9. The transmission mechanism 9 includes a rotating shaft 91 that is rotatably inserted into the middle of the fixed sleeve 53. The front and rear ends of the rotating shaft 91 extend out of the fixed sleeve 53. The front and rear ends of the fixed sleeve 53 are fixedly connected to the bearings 12. The rotating shaft 91 is fixedly inserted into the middle of the bearings 12. The rear end of the rotating shaft 91 is fixedly connected to a gear 92. The gear 92 meshes with the front end of the gear 82. The front end of the rotating shaft 91 is fixedly connected to a gear 93. The gear 93 meshes with the rear end of the toothed core shell 32. The toothed core shell 32 and the gear 93 mesh at 90°. The axis of the rotating shaft 91 is perpendicular to the axis of the core clamp 31 at 90°.

[0038] Therefore, rotating the rotating shell 7 drives the rotating shaft 81 to rotate, the rotating shaft 81 drives the gear 82 to rotate, the gear 82 drives the gear 92, the rotating shaft 91 and the gear 93 to rotate, and finally the gear 93 drives the toothed core shell 32 to rotate inside the machine head assembly 1, thereby driving the core clamp 31 and the implantation screwdriver inside to rotate, and the rotation of the screwdriver tightens the implantation nail.

[0039] In specific implementation of this utility model, such as Figure 1-9 As shown, during use, press to remove the back cover 2, install the implantation screwdriver in the middle of the core clip 31 inside the machine head assembly 1. The core clip 31 fixes the implantation screwdriver. Then, install the back cover 2 to fix the machine core assembly 3 and the implantation screwdriver from the top. Then, rotate the rotating shell 7 to drive the rotating shaft 81 to rotate. The rotation of the rotating shaft 81 drives the gear 82 to rotate. The rotation of the gear 82 drives the gear 92, the rotating shaft 91, and the gear 93 to rotate. Finally, the gear 93 drives the toothed core shell 32 to rotate inside the machine head assembly 1, thereby driving the core clip 31 and the implantation screwdriver inside to rotate. The rotation of the screwdriver tightens the implantation nail.

[0040] This device is compact in design, allowing users to operate it easily and freely in confined oral spaces. This implant torque wrench features an unlimited torque design, addressing the issue of insufficient torque from ordinary torque wrenches. By using this torque wrench to apply additional force, the abutment can be reinforced, thereby greatly improving the efficiency and effectiveness of implant surgery.

[0041] Meanwhile, by rotating the rotating shell 7, a series of transmissions can be transmitted to the implant screwdriver, causing it to rotate and operate within the narrow oral cavity space. By rotating the rotating connection to the implant screwdriver, the implant pin can be tightened or the abutment can be fixed. In the case of limited oral space, this wrench structure can be operated conveniently and flexibly, improving surgical efficiency.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A high efficiency dental wrench, characterized in that, Include: The head assembly (1), the head assembly (1) upper end is provided with rear cover (2); The core assembly (3) is arranged in the head assembly (1), the core assembly (3) includes the core clamp (31) inserted in the front end of the head assembly (1), the outer side of the core clamp (31) is fixedly sleeved with the toothed core shell (32), the lower end of the core clamp (31) penetrates out of the lower end of the head assembly (1); The shell (4) is arranged in the rear end of the head assembly (1); The assembly mechanism (5) is arranged between the head assembly (1) and the shell (4), the assembly mechanism (5) includes the elbow (51) fixedly connected to the front end of the shell (4), the rear end of the head assembly (1) is sleeved with the connecting sleeve (52), the rear end of the connecting sleeve (52) is threadedly connected to the front end of the elbow (51), the rear end of the head assembly (1) is fixedly inserted with the fixed sleeve (53), the rear end of the fixed sleeve (53) is inserted into the front end of the elbow (51); The positioning mechanism (6) is arranged between the head assembly (1) and the shell (4); The rotating shell (7) is rotatably connected to the rear end of the shell (4); The rotating mechanism (8) is arranged between the shell (4) and the rotating shell (7), the rotating mechanism (8) includes the rotating shaft one (81) inserted into the middle of the shell (4), the rear end of the rotating shaft one (81) is inserted into the middle of the front end of the rotating shell (7), the front end of the rotating shaft one (81) is fixedly connected with the gear one (82); The transmission mechanism (9) is arranged in the head assembly (1), the transmission mechanism (9) includes the rotating shaft two (91) rotatably inserted into the middle of the fixed sleeve (53), the front and rear ends of the rotating shaft two (91) penetrate out of the inside of the fixed sleeve (53), the rear end of the rotating shaft two (91) is fixedly connected with the gear two (92), the gear two (92) is engaged with the front end of the gear one (82), the front end of the rotating shaft two (91) is fixedly connected with the gear three (93), the gear three (93) is engaged with the rear end of the toothed core shell (32), the toothed core shell (32) and the gear three (93) are engaged at 90°, the shaft center of the rotating shaft two (91) and the shaft center of the core clamp (31) are perpendicular at 90°.

2. The efficient dental wrench according to claim 1, wherein: The inside of the head assembly (1) is fixedly connected with the bearing one (10) at the upper and lower ends, and the toothed core shell (32) is fixedly inserted into the inside of the bearing one (10) at the upper and lower ends.

3. The efficient dental wrench according to claim 1, wherein: The positioning mechanism (6) includes the fixed tooth sleeve one (61) fixedly sleeved with the rear end of the fixed sleeve (53), the elbow (51) is fixedly connected with the fixed tooth sleeve two (62) at the front end, and the fixed tooth sleeve one (61) is engaged with the fixed tooth sleeve two (62).

4. The efficient dental wrench according to claim 1, wherein: The inside of the shell (4) is fixedly connected with the bearing two (11) at the front and rear ends, and the rotating shaft one (81) is fixedly inserted into the middle of the bearing two (11).

5. The efficient dental wrench according to claim 1, wherein: The inside of the fixed sleeve (53) is fixedly connected with the bearing three (12) at the front and rear ends, and the rotating shaft two (91) is fixedly inserted into the middle of the bearing three (12).

6. The efficient dental wrench according to claim 1, wherein: The rotating shell (7) is threadedly connected with a fixing nail (13) on one side of the upper end, and the lower end of the fixing nail (13) is threadedly connected with a rotating shaft (81).

7. The efficient dental wrench according to claim 1, wherein: The rear cover (2) is a press type rear cover.