Screw driver for dental implant

Abstract

The utility model relates to the field of oral medical instruments, and discloses a screw driver for dental implantation, which comprises a support cylinder, a holding handle is fixedly connected to the periphery of the left end of the support cylinder, a rotating circular groove is arranged in the support cylinder, a rotating shaft is rotatably connected to the inside of the rotating circular groove, a worm gear is fixedly connected to the periphery of the rotating shaft, and the worm gear is fixedly connected to the left end of the support cylinder. A worm is meshed with the top of the worm gear, a rotating support is rotationally connected to the back face of the worm, a rotating handle is fixedly connected to the front face of the worm, a rotating assembly is fixedly connected to the right end of the rotating shaft, and a rotating cylinder is fixedly connected into the rotating assembly. According to the utility model, the screwdriver head can be rotated by arranging the worm gear and the worm and rotating the rotating handle, and a repair part can be screwed by stretching the screwdriver head into the supporting cylinder when the mouth opening of a patient is too small, so that a hand does not need to stretch into the mouth, the visual field in the mouth is ensured, the screwing stability is enhanced, and the smooth operation is ensured.

Description

Technical Field

[0001] The utility model relates to the field of oral medical instruments, in particular to a screwdriver for dental implantation. Background Art

[0002] Oral medical instruments refer to various small portable tools specially used in dentistry, which are called oral instruments internationally. In the process of dental implant, the implant is first screwed into the alveolar bone through the thread; then the denture is installed on the implant, and a dental implant screwdriver is needed. When the instrument screw connected to the implant is in the mouth, in order to tighten the screw, the screwdriver is inserted into the upper structure in the mouth, and then the front end of the screwdriver contacts the screw for screwing. At this time, it is difficult to ensure the field of vision inside the mouth, and it is difficult to insert the screwdriver into the upper restoration, which reduces the convenience of the operation.

[0003] After searching, Chinese patent announcement number: CN220632254U discloses a dental implant screwdriver, including an operating handle and a screwdriver head, the hinged end of the operating handle is fixedly mounted with a housing, the inner top of the housing is fixedly mounted with a rotating shaft, the bottom end of the rotating shaft penetrates the inner bottom of the housing and extends to the outside of the housing. The utility model enables the operating handle and the housing to be hingedly arranged by fixing the hinged end of the operating handle with the housing, which facilitates the adjustment of the angle between the screwdriver head and the operating handle, and controls the direction of the unidirectional rotation of the rotating shaft through a one-way rotating component, so that the reverse hand operation can be facilitated when tightening the implant.

[0004] Although this technology can insert the screwdriver into the patient's mouth when the patient's oral opening is small, and observe and ensure that the screwdriver is inserted into the interior of the restoration in a small space, in actual use, after insertion, it is still necessary to reach into the patient's mouth to rotate the screwdriver head to tighten the upper restoration. During the operation, the position of the screwdriver cannot be seen because it is blocked by the hand. At the same time, the patient's mouth opening is not high, making it difficult to reach in with the hand. Therefore, a screwdriver for dental implants is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a screwdriver for dental implantation, aiming to improve the problem in the prior art that after the screwdriver is inserted, the hand still needs to be inserted into the oral cavity to rotate the screwdriver head.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a screwdriver for dental implants, comprising a supporting tube, a holding handle fixedly connected to the outer periphery of the left end of the supporting tube, a rotating circular groove is opened inside the supporting tube, a rotating shaft is rotatably connected inside the rotating circular groove, a worm wheel is fixedly connected to the outer periphery of the rotating shaft, a worm is meshed with the top of the worm wheel, a rotating bracket is rotatably connected to the back of the worm, a rotating handle is fixedly connected to the front of the worm, a rotating assembly is fixedly connected to the right end of the rotating shaft, a rotating cylinder is fixedly connected inside the rotating assembly, a clamping assembly is fixedly connected to the bottom of the rotating cylinder, and a screw bit is in contact with the inside of the clamping assembly.

[0007] As a further description of the above technical solution:

[0008] The clamping assembly includes a fixed sleeve, the top of which is fixedly connected to the bottom of a rotating cylinder, a threaded groove is provided on the outer periphery of the fixed sleeve, a threaded sleeve is threadedly connected to the outer periphery of the threaded groove, an annular groove is provided inside the threaded sleeve, a sliding column is fixedly connected inside the annular groove, a clamping arm is slidably connected to the outer periphery of the sliding column, a sliding sleeve is slidably connected to the outer periphery of the clamping arm, a clamping wheel is hinged at one inner end of the clamping arm, and the inner side of the clamping wheel contacts the outer periphery of the bit.

[0009] As a further description of the above technical solution:

[0010] The top end of the rotating bracket is fixedly connected to the top inner wall of the rotating circular groove.

[0011] As a further description of the above technical solution:

[0012] The outer periphery of the rotating handle is rotatably connected to the front side of the supporting tube.

[0013] As a further description of the above technical solution:

[0014] The rotating assembly comprises a driving bevel gear, the left side of the driving bevel gear is fixedly connected to the right end of the rotating shaft, the bottom end of the driving bevel gear is meshed with a rotating bevel gear, and the bottom of the rotating bevel gear is fixedly connected to the top of the rotating cylinder.

[0015] As a further description of the above technical solution:

[0016] The outer circumference of the rotating cylinder is rotatably connected to the bottom of the supporting tube.

[0017] As a further description of the above technical solution:

[0018] The top end of the sliding sleeve is hinged to the bottom end of the fixed sleeve.

[0019] As a further description of the above technical solution:

[0020] A plurality of groups of vertical grooves are arranged on the outer periphery of the top end of the bit.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by providing a worm gear and a worm, the screwdriver head can be rotated by turning the rotating handle. When the patient's oral opening is too small, the repair part can be screwed by inserting the support tube, so there is no need to insert the hand into the oral cavity, thereby ensuring the field of vision in the oral cavity, and at the same time enhancing the stability of screwing, ensuring the smooth progress of the operation.

[0023] 2. In the utility model, by arranging a threaded sleeve, a sliding column and a sliding sleeve, the threaded sleeve is rotated, and the clamping arm deflects inwards to clamp the screwdriver bit, so that the device can replace screwdriver bits of different models and sizes, and quickly fix a variety of repair parts of different sizes, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall front view of a dental implant screwdriver proposed by the utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the top of a support tube of a dental implant screwdriver proposed by the utility model;

[0026] Figure 3 This is a partial enlarged schematic diagram of the top A of the support tube of a dental implant screwdriver proposed by the utility model;

[0027] Figure 4 The utility model is a front cross-sectional schematic diagram of a fixing sleeve of a dental implant screwdriver.

[0028] Legend:

[0029] 1. Support cylinder; 2. Holding handle; 3. Rotating circular groove; 4. Rotating shaft; 5. Worm gear; 6. Worm; 7. Rotating bracket; 8. Rotating handle; 9. Driving bevel gear; 10. Rotating bevel gear; 11. Rotating cylinder; 12. Fixed sleeve; 13. Threaded groove; 14. Threaded sleeve; 15. Annular groove; 16. Sliding column; 17. Clamping arm; 18. Sliding sleeve; 19. Clamping wheel; 20. Batch bit. DETAILED DESCRIPTION

[0030] 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.

[0031] Reference Figure 1-Figure 3 The utility model provides an embodiment: a screwdriver for dental implantation, comprising a support cylinder 1 for supporting and connecting, a holding handle 2 for convenient holding is fixedly connected to the outer periphery of the left end of the support cylinder 1, a rotating circular groove 3 is opened inside the support cylinder 1, a rotating shaft 4 is rotatably connected inside the rotating circular groove 3, a worm gear 5 is fixedly connected to the outer periphery of the rotating shaft 4, the rotation of the worm gear 5 will drive the rotating shaft 4 to rotate, a worm 6 is meshed at the top of the worm gear 5, the rotation of the worm 6 will drive the worm gear 5 to rotate, but the worm gear 5 cannot drive the worm 6 to rotate, and has a self-locking function, a rotating bracket 7 for fixed support is rotatably connected to the back of the worm 6, the top of the rotating bracket 7 is fixedly connected to the top inner wall of the rotating circular groove 3, a rotating handle 8 for convenient hand-held rotation is fixedly connected to the front of the worm 6, the outer periphery of the rotating handle 8 is rotatably connected to the front of the support cylinder 1, and a rotating component for transmission is fixedly connected to the right end of the rotating shaft 4.

[0032] Reference Figure 1-Figure 2 The rotating assembly includes a driving bevel gear 9, the left side of the driving bevel gear 9 is fixedly connected to the right end of the rotating shaft 4, and the bottom end of the driving bevel gear 9 is meshed with a rotating bevel gear 10. The rotating bevel gear 10 can transmit the rotation of the driving bevel gear 9 and convert the vertical rotation of the driving bevel gear 9 into horizontal rotation. A rotating cylinder 11 is fixedly connected inside the rotating assembly, and the bottom of the rotating bevel gear 10 is fixedly connected to the top of the rotating cylinder 11. The outer periphery of the rotating cylinder 11 is rotatably connected to the bottom of the supporting tube 1. A clamping assembly for conveniently clamping screw bits 20 of different models and sizes is fixedly connected to the bottom of the rotating cylinder 11, and the inside of the clamping assembly is in contact with the screw bit 20 that contacts the repair part.

[0033] Reference Figure 1 and Figure 4 The clamping assembly includes a fixed sleeve 12, the top of which is fixedly connected to the bottom of the rotating cylinder 11, a threaded groove 13 is provided on the outer periphery of the fixed sleeve 12, a threaded sleeve 14 is threadedly connected to the outer periphery of the threaded groove 13, the threaded sleeve 14 is rotated, and the threaded sleeve 14 can slide up and down on the outer wall of the threaded groove 13, an annular groove 15 is provided inside the threaded sleeve 14, a sliding column 16 is fixedly connected inside the annular groove 15, and four groups of sliding columns 16 are arranged, which are evenly distributed in annular grooves 15, and a clamping arm 17 is slidably connected to the outer periphery of the sliding column 16, and the sliding column 16 The clamping arm 17 is restricted to slide up and down only along the outer wall of the sliding column 16. The outer periphery of the clamping arm 17 is slidably connected with a sliding sleeve 18. When the threaded sleeve 14 rotates, the clamping arm 17 can slide inside the sliding sleeve 18. At the same time, the sliding sleeve 18 drives the clamping arm 17 to deflect. The top end of the sliding sleeve 18 is hinged to the bottom end of the fixed sleeve 12. A clamping wheel 19 is hinged at one end of the inner side of the clamping arm 17. The inner side of the clamping wheel 19 contacts the outer periphery of the screwdriver bit 20 to clamp the screwdriver bit 20 inside. A plurality of vertical grooves are arranged on the outer periphery of the top end of the screwdriver bit 20 to enhance friction and improve the clamping effect.

[0034] Working principle: when you want to conveniently turn the screwdriver bit 20, extend the support tube 1 into the patient's mouth, place the screwdriver bit 20 and the opening of the repair part inside the patient's mouth, and then turn the rotating handle 8. The rotating handle 8 drives the worm 6 to rotate, the worm 6 drives the worm wheel 5 to rotate, the worm wheel 5 drives the rotating shaft 4 to rotate, the rotating shaft 4 drives the driving bevel gear 9 to rotate, the driving bevel gear 9 drives the rotating bevel gear 10 to rotate, the rotating bevel gear 10 drives the rotating cylinder 11 to rotate, and the rotating cylinder 11 drives the screwdriver bit 20 to rotate through the clamping assembly, so that the repair part can be conveniently tightened. When you want to install screw bits 20 of different models and sizes, place the screw bit 20 inside the fixed sleeve 12 and rotate the threaded sleeve 14. The threaded sleeve 14 drives the outer end of the clamping arm 17 to rotate, and the sliding column 16 slides upward. The clamping arm 17 slides on the inner wall of the sliding sleeve 18 at this time. The position of the inner wall of the sliding sleeve 18 and the sliding column 16 changes, thereby driving the inner end of the clamping arm 17 to deflect toward the center of the circle, thereby driving the clamping wheel 19 to clamp the screw bit 20, so that the screwdriver can clamp screw bits 20 of different models and sizes.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dental implant screwdriver, comprising a support tube (1), characterized in that: The left end of the support tube (1) is fixedly connected to a gripping handle (2), a rotating circular groove (3) is provided inside the support tube (1), a rotating shaft (4) is rotatably connected inside the rotating circular groove (3), a worm wheel (5) is fixedly connected to the outer periphery of the rotating shaft (4), a worm (6) is meshed at the top of the worm wheel (5), a rotating bracket (7) is rotatably connected to the back of the worm (6), a rotating handle (8) is fixedly connected to the front of the worm (6), a rotating assembly is fixedly connected to the right end of the rotating shaft (4), a rotating cylinder (11) is fixedly connected inside the rotating assembly, a clamping assembly is fixedly connected to the bottom of the rotating cylinder (11), and a screwdriver bit (20) is in contact with the clamping assembly.

2. A dental implant screwdriver according to claim 1, characterized in that: The clamping assembly comprises a fixed sleeve (12), the top end of the fixed sleeve (12) is fixedly connected to the bottom of the rotating cylinder (11), the outer circumference of the fixed sleeve (12) is provided with a thread groove (13), the outer circumference of the thread groove (13) is threadedly connected to a threaded sleeve (14), the inner part of the threaded sleeve (14) is provided with an annular groove (15), the inner part of the annular groove (15) is fixedly connected to a sliding column (16), the outer circumference of the sliding column (16) is slidably connected to a clamping arm (17), the outer circumference of the clamping arm (17) is slidably connected to a sliding sleeve (18), and one end of the inner side of the clamping arm (17) is hingedly connected to a clamping wheel (19), and the inner side of the clamping wheel (19) contacts the outer circumference of a screwdriver bit (20).

3. The dental implant screwdriver according to claim 1, characterized in that: The top end of the rotating bracket (7) is fixedly connected to the top inner wall of the rotating circular groove (3).

4. The dental implant screwdriver according to claim 1, characterized in that: The outer periphery of the rotating handle (8) is rotatably connected to the front side of the supporting tube (1).

5. The dental implant screwdriver according to claim 1, characterized in that: The rotating assembly comprises a driving bevel gear (9), the left side of the driving bevel gear (9) is fixedly connected to the right end of the rotating shaft (4), the bottom end of the driving bevel gear (9) is meshed with a rotating bevel gear (10), and the bottom of the rotating bevel gear (10) is fixedly connected to the top of the rotating cylinder (11).

6. The dental implant screwdriver according to claim 1, characterized in that: The outer circumference of the rotating cylinder (11) is rotatably connected to the bottom of the supporting tube (1).

7. The dental implant screwdriver according to claim 2, characterized in that: The top end of the sliding sleeve (18) is hinged to the bottom end of the fixed sleeve (12).

8. The dental implant screwdriver according to claim 1, characterized in that: The outer periphery of the top end of the bit (20) is provided with a plurality of groups of vertical grooves.

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