CN218652081U

CN218652081U - Screw driver

Info

Publication number: CN218652081U
Application number: CN202222869779.3U
Authority: CN
Inventors: 刘松; 张虎虎; 常豪介; 郝广平; 左大为
Original assignee: Beijing Datsing Technology Co ltd
Current assignee: Beijing Datsing Technology Co ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-03-21
Anticipated expiration: 2032-10-28

Abstract

The application relates to the field of medical instruments, in particular to a screwdriver which comprises a main body and a plurality of elastic pieces arranged at one end of the main body; the side wall of the end part of the main body close to one end of the elastic pieces is concavely provided with a plurality of grooves; the plurality of grooves and the plurality of elastic pieces are arranged in a one-to-one manner; the end part of the main body, which is close to one end of the elastic piece, is concavely provided with a cavity for mounting a plurality of elastic pieces, and the cavity is communicated with the grooves; the elastic piece can protrude out of the outer wall of the main body through the groove. The application has the effect of improving the use efficiency of the screw driver for the dental implant.

Description

Screw driver

Technical Field

The application relates to the field of medical equipment, in particular to a screwdriver.

Background

The implant refers to a tooth missing restoration method for supporting and retaining an upper dental restoration based on a lower structure implanted into bone tissue. In the dental implant operation, a dentist needs to use various medical instruments to process an implant part, and in the operation, the dentist uses a screwdriver to install an implant of a dental implant; the dental implant needs to be inspected and repaired regularly after use, and the dentist usually takes out the implant by using a screwdriver.

The diameter specification of the head position of the screwdriver in the prior art is fixed. The mounting or removal of the implant is currently achieved by inserting the head of a screwdriver into the inner bore of the implant. When the screwdriver takes and places the implant, the inner hole of the implant is matched and connected with the head of the screwdriver, and the inner hole of the implant has various forms, such as a threaded hole, a round hole or an irregular inner hole. However, the specification of the top of the screwdriver is fixed, and for the inner holes with different shapes or sizes on the implant, a special screwdriver with corresponding specification is required, so that the universality is poor.

SUMMERY OF THE UTILITY MODEL

In order to improve the work efficiency of a screw driver for planting teeth, the application provides a screw driver.

The application provides a screwdriver adopts following technical scheme:

a screwdriver comprises a main body and a plurality of elastic pieces arranged at one end of the main body; the side wall of the end part of the main body close to one end of the elastic pieces is concavely provided with a plurality of grooves; the plurality of grooves and the plurality of elastic pieces are arranged in a one-to-one manner; the end part of the main body, which is close to one end of the elastic piece, is concavely provided with a cavity for mounting a plurality of elastic pieces, and the cavity is communicated with the grooves; the elastic piece can protrude out of the outer wall of the main body from the groove notch.

By adopting the technical scheme, the elastic piece protruding out of the main body can be abutted against the inner hole of the implant, and can be contracted when stressed and rebounded when not stressed, so that the shape and size of the main body are changed to be abutted against the inner hole of the implant; the convex part of the elastic piece is clamped with the irregular concave part in the inner hole of the implant to pick up the implant, and the elastic pieces can be adapted to the inner holes of the implants in different shapes due to the elastic property of the elastic piece; thereby improving the versatility of the screwdriver.

Optionally, the main body comprises a screwdriver tip for mounting the plurality of elastic elements, a mounting seat arranged at one end of the screwdriver tip far away from the elastic elements, a holding part arranged at one end of the mounting seat far away from the screwdriver tip, and a butt joint part arranged at one end of the holding part far away from the screwdriver tip; the side wall of one end of the butt joint part, which is far away from the holding part, is concavely provided with an annular groove.

By adopting the technical scheme, the elastic piece can be arranged on the end of the screwdriver, and the end of the screwdriver is abutted against the implant; the mounting base is convenient to hold by hands, so that the elastic piece is convenient to mount; the holding part is convenient to hold so as to be convenient for the use of a screwdriver; the annular groove is convenient for the butt joint part to be clamped by other medical instruments, thereby being convenient for taking and placing the implant.

Optionally, the cavity is arranged on the end surface of one end of the screwdriver tip far away from the holding part; the end face of the end head of the screwdriver, which is far away from one end of the mounting seat, is covered with a limiting block, and the limiting block can be used for connecting the elastic pieces.

Through adopting above-mentioned technical scheme, elastic component top and stopper fixed connection prevent the elastic component skew, when the elastic component protrusion in the partial butt of recess when the inner wall of planting body hole, can make the middle section of elastic component take place elastic deformation along the direction of perpendicular to bottle opener end central axis, the both ends reaction force of elastic component is in the middle section of elastic component, thereby the realization is to the butt of the inner wall of hole, thereby the realization is through the spiral of screw driver realization to the planting body and take out the action.

Optionally, the holding part comprises an extension rod, a plurality of adjusting seats detachably connected to one side of the extension rod, and a fixing base coaxially arranged at one end of each adjusting seat far away from the extension rod; the adjusting seats can be connected end to end and are coaxially arranged, and one end of the fixing base, which is far away from the adjusting seats, is fixedly connected with the mounting seat; one end of the extension rod, which is far away from the adjusting seat, is connected with the butt joint part.

By adopting the technical scheme, the holding part is convenient to hold and relatively long, so that the screwdriver is more convenient to use; the plurality of adjusting seats are detachable, and the length of the connecting rod can be adjusted by changing the number of the adjusting seats, so that the implants positioned in different positions of the oral cavity can be picked conveniently.

Optionally, the fixing base is a circular truncated cone, and one end of the side wall of the fixing base, which is close to the end of the screwdriver, inclines towards the central axis of the screwdriver.

By adopting the technical scheme, the circular truncated cone is convenient to process, and the generation rate of defective products is reduced; in addition, the narrow wide design down makes unable adjustment base along the moment grow of screwdriver the central axis direction in the round platform to the intensity of the screwdriver of being convenient for increases, makes the screwdriver more laborsaving when using.

Optionally, the elastic element includes a spring and a connecting sheet, the spring is disposed in the cavity, and one end of the spring abuts against an inner side wall of the cavity; the connecting sheet is arranged at one end of the spring, which is far away from the inner side wall of the cavity, and one surface of the connecting sheet is fixedly connected with the spring; one end of the connecting piece is fixedly connected to the limiting block, a spherical bulge is convexly arranged on one surface, far away from the spring, of the connecting piece, and the spherical bulge protrudes out of the end of the screwdriver.

By adopting the technical scheme, the spherical bulge is convenient for the connecting sheet to abut against the inner hole of the implant, when the screwdriver takes and places the implant, the end head of the screwdriver is inserted into the inner hole of the implant, the spherical bulge exposed out of the notch of the groove abuts against the irregular bulge in the inner hole of the implant, the connecting sheet is pressed to force the spring to generate elastic deformation, and then the shape and the size of the end head of the screwdriver are changed, so that the clamping connection of the end head of the screwdriver and the inner hole of the implant is realized; the bottle opener end is pulled out from the hole of planting body, and spherical protruding no longer receives pressure, and the spring reconversion drives the connection piece and recovers to the original position, bottle opener end reconversion thereupon.

Optionally, the elastic element includes a contact piece, a connecting block and a positioning piece, and the contact piece, the connecting block and the positioning piece are all elastic; the connecting block connect in butt piece one end lateral wall, the spacer is fixed in the connecting block is kept away from the lateral wall of butt piece one end, connecting block and stopper fixed connection. A positioning ring groove is concavely arranged on the bottom wall of the cavity, and one end of the abutting sheet, which is far away from the connecting block, can be buckled in the positioning ring groove; one side of the abutting sheet far away from the positioning sheet is fixedly provided with a spherical bulge in a protruding mode, and the spherical bulge protrudes out of the end head of the screwdriver.

By adopting the technical scheme, the end head of the screwdriver is inserted into the inner hole of the implant, the spherical bulge exposed out of the notch of the groove is abutted against the irregular bulge in the inner hole of the implant, the middle section of the abutting sheet is elastically deformed towards the direction close to the positioning sheet under the pressure, and the shape and the size of the end head of the screwdriver are further changed, so that the clamping connection of the end head of the screwdriver and the inner hole of the implant is realized; the two ends of the abutting piece are abutted by the limiting blocks and the positioning ring grooves to form a fixing trend, and the deformation of the abutting piece to a certain degree can be inhibited, so that the elastic use efficiency of the abutting piece is maintained.

Optionally, the end face side wall of the end head of the screwdriver, which is close to one end of the elastic element, is provided with a plurality of avoiding grooves, and the avoiding grooves are communicated with the grooves in a one-to-one mode.

Through adopting above-mentioned technical scheme, when the installation elastic component, dodge the groove and can make the opening expansion of cavity to the elastic component of being convenient for detains into the cavity.

In summary, the present application includes at least one of the following beneficial technical effects: the screwdriver tip is provided with an elastic piece, and when the elastic piece is abutted against the inner hole of the implant with different shapes and sizes, the elastic piece can generate elastic deformation, so that the shape and the size of the screwdriver tip are adjusted, and the screwdriver tip is matched with the implant; the convex part of the elastic piece is clamped with the irregular concave part in the inner hole of the implant, so that the implant is picked up, the universality of the screwdriver is higher, and the use efficiency of the screwdriver is improved.

Drawings

Fig. 1 is a schematic structural view of a screwdriver in embodiment 1 of the present application;

fig. 2 is an exploded view of a screwdriver in accordance with embodiment 1 of the present application;

FIG. 3 is a schematic structural view of a screwdriver in embodiment 2 of the present application;

FIG. 4 is an exploded view of a screwdriver in accordance with example 2 of the present application;

fig. 5 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3.

Description of reference numerals: 1. a main body; 11. a screwdriver tip; 111. a groove; 112. a cavity; 113. a limiting block; 1131. mounting grooves; 114. a butt joint block; 115. an avoidance groove; 12. a mounting seat; 13. a holding part; 131. an extension pole; 132. a fixed base; 133. an adjusting seat; 1331. a card slot; 1332. a butt joint block; 1333. a convex ring; 14. a butt joint part; 141. an annular groove; 2. an elastic member; 21. a spring; 22. connecting sheets; 221. a spherical bulge; 23. abutting the sheet; 24. connecting blocks; 25. positioning plates; 26. and a positioning ring groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to fig. 1-3 and the embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

The embodiment of the application discloses a screwdriver.

Example 1:

referring to fig. 1, a screwdriver includes a main body 1 and a plurality of elastic members 2; wherein, a plurality of elastic component 2 can dismantle the top of connecting in main part 1, and the bottom of main part 1 can supply other medical instrument centre grippings.

The main body 1 comprises a screwdriver head 11, a mounting seat 12, a holding part 13 and a butt joint part 14 which are sequentially connected end to end from top to bottom; a cavity 112 for mounting the plurality of elastic pieces 2 is formed in one end of the screwdriver tip 11, which is far away from the mounting base 1, a limiting block 113 is connected to one end of the screwdriver tip 11, which is far away from the mounting base 12, through threads, and the limiting block 113 can close an opening of the cavity 112; the elastic pieces 2 are fixedly connected to one side of the limiting block 113 facing the inside of the cavity 112; the elastic pieces 2 are distributed at equal intervals in a circle by taking the axis of the screwdriver head 11 as the center of a circle.

Referring to fig. 1 and 2, a plurality of grooves 111 are formed in the side wall of the end portion of the screwdriver tip 11 close to one end of the plurality of elastic members 2 one by one, and the cavity 112 is communicated with the plurality of grooves 111; the plurality of grooves 111 are distributed in a circumferential equidistant manner by taking the axis of the screwdriver tip 11 as the center of a circle; the number of the grooves 111 may be two, three, or more. In this embodiment, the number of the grooves 111 is set to three, and stability and space utilization can be considered by three grooves 111.

Referring to fig. 2, in the present embodiment, the elastic member 2 includes a spring 21 and a connecting piece 22; in this embodiment, the side wall of the limiting block 113 is concavely provided with a plurality of mounting grooves 1131 for mounting the elastic members 2, and the plurality of mounting grooves 1131 and the plurality of elastic members 2 are arranged in a one-to-one manner; the top end of the connecting piece 22 is fixedly connected with the limiting block 113, the spring 21 is fixedly connected with one side of the connecting piece 22, and one end of the spring 21, which is far away from the connecting piece 22, is abutted against the inner side wall of the mounting groove 1131; the side of the connecting piece 22 far away from the spring 21 is provided with a spherical bulge 221, and the spherical bulge 221 protrudes out of the outer wall of the screwdriver head 11 from the notch of the groove 111 so as to abut against the inner hole side wall of the implant.

When the elastic element 2 is installed, because the maximum outer edge diameter of the spherical protrusions 221 is larger than the inner diameter of the cavity 112, when the elastic element 2 needs to be installed in the cavity 112, and the spherical protrusions 221 abut against the inner wall of the opening of the cavity 112, the inner wall of the opening of the cavity 112 can be forced to slightly expand outwards; on one hand, the spherical bulge 221 is convenient to buckle into the groove 111 at the corresponding position, on the other hand, the deformation quantity of the connecting piece 21 when the elastic piece 2 is installed can be reduced, and the possibility of unrecoverable deformation of the connecting piece 21 caused by installation is reduced; thereby contributing to a prolonged period of use of the elastic member 2.

Referring to fig. 1 and 2, the mounting base 12 is a prism, the elastic member 2 is detached by detaching the limiting block 113 during processing, and the prism is convenient for clamping, so that the limiting block 113 is easier to mount and detach; the edge of the mounting seat 12 close to one end of the screwdriver tip 11 is arranged in a round angle mode, so that the oral cavity of a patient is prevented from being scratched by the edge of the mounting seat 12.

The holding part 13 comprises a fixed base 132, an extension rod 131 and a plurality of adjusting seats 133; fixing base 132 sets up in the portion of gripping 13 near the one end of mount pad 12 coaxially, and what a plurality of can dismantle that regulation seat 133 end to end sets up in fixing base 132 and keeps away from mount pad 12 one end, and mutual joint between a plurality of regulation seat 133, extension rod 131 set up in the portion of gripping 13 and keep away from the one end of mount pad 12.

Referring to fig. 1 and 2, in the present embodiment, the fixing base 132 is provided as a circular truncated cone, which facilitates processing, thereby reducing the generation rate of defective products. One end of the side wall of the fixing base 132 close to the mounting seat 12 inclines towards the central axis direction of the screwdriver, so that the moment of the fixing base 132 along the central axis direction of the screwdriver is increased, the strength of the screwdriver is increased conveniently, and the screwdriver is more labor-saving in use.

Referring to fig. 2, the adjusting base 133 includes a plurality of adjusting units stacked adjacent to each other; a clamping groove 1331 is concavely arranged on the end face of the top of the adjusting unit, a butt joint block 1332 is convexly arranged on the end face of the bottom of the adjusting unit, and a convex ring 1333 is convexly arranged on the side wall of one end, far away from the clamping groove 1331, of the butt joint block 1332; in this embodiment, the protruding ring 1333 is made of an elastic material so as to adapt to the engagement of the docking block 1332 with the slot 1331; the convex ring 1333 forces the friction between the docking block 1332 of the previous adjusting seat 133 and the inner sidewall of the slot 1331 of the next adjusting seat 133 to be larger, thereby preventing the adjusting units 133 from being loosened; the operator can adjust the length of the adjusting seat 133 by changing the number of the adjusting units, thereby facilitating the picking of the implant at different positions in the oral cavity and improving the adaptability of the holding part 13.

The docking portion 14 is fixedly connected to an end of the extension rod 131 remote from the adjustment seat 133. In this embodiment, the abutting portion 14 is a semi-cylinder, the arc-shaped sidewall of the end of the abutting portion 14 away from the extension rod 131 is concavely provided with an annular groove 141, and the sidewall of the annular groove 141 and the semi-cylinder is convenient for the abutting portion 14 to be clamped by other medical devices, so that the convenience of taking and placing the implant by a user is improved.

The implementation principle of the embodiment 1 is as follows: in a normal state (when the screwdriver screw is not used), the spring 21 forces the connecting piece 22 to abut against the inner wall of the cavity 112 in a direction close to the outer edge side of the screwdriver tip 11, so that the spherical protrusion 221 is forced to abut outwards and penetrate through the groove 111; when the implant needs to be taken and placed by using a screwdriver, the end 11 of the screwdriver is inserted into an inner hole of the implant, the spherical bulge 221 props against irregular bulges (including threads and the like) in the inner hole of the implant, the connecting piece 22 is pressed to force the spring 21 to compress, and the reaction force of the two ends of the connecting piece 22 is acted on the spherical bulge 221, so that the inner wall of the inner hole of the implant is butted, and the screw taking action of the implant is realized through the screwdriver;

the screwdriver tip 11 is pulled out from the inner hole of the implant, the spherical bulge 221 is not stressed any more, the spring 21 restores the original state, the connecting piece 22 is driven to restore to the original position, and the screwdriver tip 11 is restored to the original state, so that the shape and the size of the screwdriver tip 11 are adjusted, and the frequency that the screwdriver tip 11 needs to be replaced due to the fact that the shape and the size of the inner hole of the implant are different is reduced.

Example 2:

referring to fig. 3 and 4, the present embodiment is different from embodiment 1 in that: the elastic element comprises a contact piece 23, a connecting block 24 connected with the side wall of one end of the contact piece 23 and a positioning piece 25 fixed on the connecting block 24 and far away from the other end of the contact piece 24; wherein, the abutting sheet 23, the connecting block 24 and the positioning sheet 25 are all elastic and are integrally arranged in a U shape;

referring to fig. 4 and 5, one side of the connecting block 24 away from the U-shaped opening is fixedly connected with the limiting block 113; it should be noted that the length of the abutting piece 23 is greater than that of the positioning piece 25; a positioning ring groove 26 for buckling one end of the abutting sheet 23 far away from the connecting block 24 is concavely arranged on the bottom wall of the cavity 112; one end of the positioning piece 25 far away from the connecting block 242 abuts against the bottom wall of the cavity 112; the limiting block 113 is in threaded connection with the inner wall of the opening of the cavity 112.

A spherical bulge 221 capable of passing through the groove 11 is fixed on one side of the abutting sheet 23 away from the positioning sheet 25 in a protruding manner; when the implant needs to be taken and placed, one side of the spherical protrusion 221, which is far away from the abutting sheet 23, can abut against the irregular inner wall of the inner hole of the implant.

The implementation principle of the embodiment 2 is as follows: when the elastic element 2 is required to be arranged in the cavity 112, the connecting block 24 and the limiting block 113 are integrally formed, so that an installer only needs to hold the limiting block 113 to buckle the bottom ends of the abutting pieces 23 into the cavity until the bottom ends of the abutting pieces 23 are buckled into the positioning ring groove 26; rotating the limiting block 113 to a fixed state;

when the screw driver tip 11 needs to be used, the spherical protrusion 221 abuts against the irregular inner wall of the inner hole of the implant, and two ends of the abutting sheet 23 are abutted by the limiting block 113 and the positioning ring groove 26 to form a 'fixing trend'; the middle section of the abutting sheet 23 elastically deforms towards the direction close to the positioning sheet 25; when the middle section of the abutting sheet 23 is deformed to the abutting positioning sheet 25, the two ends of the positioning sheet 25 are simultaneously clamped by the limiting block 113 and the bottom wall of the cavity 112, so that the deformation of the abutting sheet 23 to a certain degree can be inhibited, and the elastic use efficiency of the abutting sheet 23 is maintained.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A screwdriver, characterized in that: comprises a main body (1) and a plurality of elastic pieces (2) arranged at one end of the main body (1); the side wall of the end part of the main body (1) close to one end of the elastic pieces (2) is provided with a plurality of grooves (111) in a concave manner; the grooves (111) and the elastic pieces (2) are arranged in a one-to-one manner; a cavity (112) for mounting a plurality of elastic pieces (2) is concavely arranged at the end part of the main body (1) close to one end of the elastic piece (2), and the cavity (112) is communicated with the grooves (111); the elastic piece (2) can protrude out of the outer wall of the main body (1) from the notch of the groove (111).

2. A screwdriver according to claim 1, wherein the main body (1) comprises a screwdriver head (11) for installing the plurality of elastic members (2), a mounting seat (12) arranged at one end of the screwdriver head (11) far away from the elastic members (2), a holding part (13) arranged at one end of the mounting seat (12) far away from the screwdriver head (11), and an abutting part (14) arranged at one end of the holding part (13) far away from the screwdriver head (11); an annular groove (141) is concavely arranged on the side wall of one end, far away from the holding part (13), of the butt joint part (14).

3. A screwdriver as defined in claim 2, wherein: the cavity (112) is arranged on the end surface of one end of the screwdriver tip (11) far away from the holding part (13); the end face of one end, far away from the mounting seat (12), of the screwdriver end head (11) is covered with a limiting block (113), and the limiting block (113) is fixedly connected with the elastic pieces (2).

4. A screwdriver as defined in claim 2, wherein: the holding part (13) comprises an extension rod (131), a plurality of adjusting seats (133) detachably connected to one side of the extension rod (131) and a fixed base (132) coaxially arranged at one end, far away from the extension rod (131), of each adjusting seat (133); the adjusting seats (133) can be connected end to end and are coaxially arranged, and one end, far away from the adjusting seats (133), of the fixing base (132) is fixedly connected with the mounting seat (12); one end of the extension rod (131) far away from the adjusting seat (133) is connected with the butt joint part (14).

5. A screwdriver as defined in claim 4, wherein: the fixing base (132) is a circular truncated cone, and one end, close to the screwdriver head (11), of the side wall of the fixing base (132) inclines towards the central axis direction of the screwdriver.

6. A screwdriver as defined in claim 3, wherein: the elastic piece (2) comprises a spring (21) and a connecting piece (22), the spring (21) is arranged in the cavity (112), and one end of the spring is abutted against the inner side wall of the cavity (112); the connecting piece (22) is arranged at one end, far away from the inner side wall of the cavity (112), of the spring, and one surface of the connecting piece (22) is fixedly connected with the spring (21); one end of the connecting piece (22) is fixedly connected to the limiting block (113), a spherical protrusion (221) is convexly arranged on one surface, far away from the spring (21), of the connecting piece (22), and the spherical protrusion (221) protrudes out of the screwdriver end head (11).

7. A screwdriver as defined in claim 3, wherein: the elastic piece (2) comprises a butting piece (23), a connecting block (24) and a positioning piece (25), and the butting piece (23), the connecting block (24) and the positioning piece (25) are elastic; the connecting block (24) is connected to the side wall of one end of the abutting piece (23), the positioning piece (25) is fixed to the side wall of one end, far away from the abutting piece (23), of the connecting block (24), and the connecting block (24) is fixedly connected with the limiting block (113); a positioning ring groove (26) is concavely arranged on the bottom wall of the cavity (112), and one end, far away from the connecting block (24), of the abutting sheet (23) can be buckled into the positioning ring groove (26); one side of the abutting sheet (23) far away from the positioning sheet (25) is fixedly provided with a spherical bulge (221) in a protruding mode, and the spherical bulge (221) protrudes out of the screwdriver head (11).

8. A screwdriver according to claim 7, wherein: the end face side wall of one end, close to the elastic piece (2), of the screwdriver end head (11) is provided with a plurality of avoiding grooves (115), and the avoiding grooves (115) are communicated with the grooves (111) in a one-to-one mode.