CN205459002U - Prevent slipped screw and prevent screwdriver that skids - Google Patents
Prevent slipped screw and prevent screwdriver that skids Download PDFInfo
- Publication number
- CN205459002U CN205459002U CN201620117601.5U CN201620117601U CN205459002U CN 205459002 U CN205459002 U CN 205459002U CN 201620117601 U CN201620117601 U CN 201620117601U CN 205459002 U CN205459002 U CN 205459002U
- Authority
- CN
- China
- Prior art keywords
- screw
- side wall
- slip
- wall face
- slip screw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Dental Prosthetics (AREA)
Abstract
The utility model provides a prevent slipped screw and prevent screwdriver that skids should prevent that slipped screw included screwhead (10) and screw rod (20), contained screw hole (13) in screwhead (10), prevent still containing in slipped screw's screwhead (10) at least one and be used for revolving and twist these inner groovy (14) of preventing slipped screw, the edge of inner groovy (14) connecting screw hole (13) and surface (12), along the circumference of screwhead (10), inner groovy (14) contain the first side wall face (15) and second side wall surface (16), and the intersection line of the first side wall face (15) and second side wall surface (16) is located the bottom of inner groovy (14). Should prevent that slipped screw had add the inner groovy, the screwdriver of should preventing skidding taking out should prevent slipped screw the time, has increased the area of contact between screw and the screwdriver, can reduce and skid, the smooth screw that takes out, and it is painful to reduce patient, reduces unnecessary medical tangle.
Description
Technical field
This utility model relates to a kind of anti-slip screw, further relates to a kind of anti-slip screwdriver.
Background technology
The most commonly seen form of screw afterbody is in-line or cross, and its shortcoming is that screw often holds when coordinating with screwdriver
Easily skid.In order to overcome this problem, people have changed the endoporus of head of screw into hexagon, also have quincuncial, thus
Make screw and screwdriver skidding decrease a lot, i.e. when screw is screwed into, seldom occur skidding between screw and screwdriver.
But when fracture operation inside-fixture takes out, the situation that screw skids with screwdriver the most often occurs, once skids, then
Interior fixing taking-up is particularly difficult, even takes out failure, brings extra misery to patient.
Utility model content
In order to solve the problem skidded between screw and screwdriver, this utility model provides a kind of anti-slip screw and prevents beating
Sliding screwdriver, this anti-slip screw is additionally arranged inner groovy, and this anti-slip screwdriver, when taking out this anti-slip screw, increases
Contact area between screw and screwdriver, it is possible to reduce and skid, takes out screw smoothly, reduces patient painful, reduces
Unnecessary medical tangle.
This utility model solves its technical problem and be the technical scheme is that a kind of anti-slip screw, including head of screw
And screw rod, head of screw contains inner surface and outer surface, inner surface towards screw rod, outer surface and inner surface towards contrary,
Head of screw is contained within the screw endoporus for screwing this anti-slip screw, in the head of screw of described anti-slip screw possibly together with
At least one is for screwing the edge of the inner groovy of this anti-slip screw, inner groovy attachment screw endoporus and outer surface, edge
The circumference of head of screw, inner groovy contains the first side wall face and the second side wall surface, the first side wall face and the second side wall surface and intersects,
The intersecting lens of the first side wall face and the second side wall surface is positioned at the bottom of inner groovy.
The intersecting lens of the first side wall face and the second side wall surface is straight line, and the intersecting lens of the first side wall face and the second side wall surface is put down
Row hangs down with the axis of this anti-slip screw in the plane at the place, edge of outer surface, the plane at the place, edge of outer surface
Directly.
The first side wall face is the plane parallel with the axis of this anti-slip screw.
The first side wall face is cambered surface or plane, when object screws this anti-slip screw of dismounting by contact the first side wall face
Time, the first side wall face provides the component pointing to screw rod can to this object.
Second side wall surface is cambered surface or the plane tilted relative to the first side wall face.
Inner surface is spherical a part of surface, and outer surface is also spherical a part of surface, and the edge of inner surface is with outer
The coincident on surface, the edge of outer surface is circular.
The diameter that the spherical diameter in inner surface place is spherical less than outer surface place, the centre of sphere that inner surface place is spherical and outer
The spherical centre of sphere in place, surface is respectively positioned on the axis of this anti-slip screw.
The intersecting lens of the first side wall face and the second side wall surface is positioned at the plane at the place, edge of outer surface, the first side wall face and
The intersecting lens of the second side wall surface is vertical with the axis of this anti-slip screw.
Along the axis direction of this anti-slip screw, the degree of depth of inner groovy be screw bore depth 1 to two/3rd/
One, along the circumference of head of screw, head of screw is contained within two inner groovies, and what these two inner groovies were symmetrical be arranged at, and this anti-is beaten
The both sides of the axis of sliding screw.
A kind of anti-slip screwdriver for screwing above-mentioned anti-slip screw, this anti-slip screwdriver contains hand grip portion and bar portion,
This hand grip portion is positioned at the one end in bar portion, and the other end in bar portion is provided with the connection-peg matched with screw endoporus, connection-peg
Outer peripheral face is provided with the protuberance matched with inner groovy.
The beneficial effects of the utility model are: this anti-slip screw is additionally arranged inner groovy, when inside-fixture screw takes out,
Increase the contact area between screw and screwdriver, it is possible to reduce and skid, take out screw smoothly, reduce patient painful,
Reduce medical tangle, build a harmonious society.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, this practicality
Novel schematic description and description is used for explaining this utility model, is not intended that improper limit of the present utility model
Fixed.
Fig. 1 is the front view of anti-slip screw.
Fig. 2 is the upward view of anti-slip screw.
Fig. 3 is the sectional view in Fig. 2 along A-A direction.
Fig. 4 is a kind of enlarged diagram of aminoacyl site in Fig. 3.
Fig. 5 is the another kind of enlarged diagram of aminoacyl site in Fig. 3.
Fig. 6 is the schematic perspective view of anti-slip screw in Fig. 3.
Fig. 7 is the front view of anti-slip screwdriver.
Fig. 8 is the upward view of anti-slip screwdriver.
Fig. 9 is the left view of anti-slip screwdriver.
Figure 10 is the mated condition front view of anti-slip screw and anti-slip screwdriver.
Figure 11 is the sectional view in Figure 10 along B-B direction.
Figure 12 is the mated condition axonometric chart of anti-slip screw and anti-slip screwdriver.
Reference in figure: 10, head of screw；11, inner surface；12, outer surface；13, screw endoporus；14, interior
Groove；15, the first side wall face；16, the second side wall surface；
20, screw rod；
30, bar portion；31, connection-peg；32, protuberance.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
A kind of anti-slip screw, including head of screw 10 and screw rod 20, head of screw 10 is containing inner surface 11 and outer surface
12, inner surface 11 towards screw rod 20, outer surface 12 and inner surface 11 towards contrary, head of screw 10 is contained within
For screwing the screw endoporus 13 of this anti-slip screw, possibly together with at least one in the head of screw 10 of described anti-slip screw
The individual inner groovy 14 for screwing this anti-slip screw, inner groovy 14 attachment screw endoporus 13 and the limit of outer surface 12
Edge, along the circumference of head of screw 10, inner groovy 14 is containing the first side wall face 15 and the second side wall surface 16, the first side wall
Face 15 and the second side wall surface 16 intersect, and the intersecting lens of the first side wall face 15 and the second side wall surface 16 is positioned at inner groovy
The bottom of 14, as shown in Figures 1 to 6.
This anti-slip screw is additionally arranged inner groovy 14, when inside-fixture screw takes out, with this anti-slip screw phase
The anti-slip screwdriver connection-peg 31 joined and protuberance 32 respectively with screw endoporus 13 and the corresponding grafting of inner groovy 14, increase
Big contact area between screw and screwdriver such that it is able to reduce and skid, take out screw smoothly, reduce patient's pain
Hardship, reduces unnecessary medical tangle.It addition, the intersecting lens of the first side wall face 15 and the second side wall surface 16 is positioned at
The bottom of groove 14, the most as shown in Figure 4 and Figure 5, in the intersecting lens of the first side wall face 15 and the second side wall surface 16
The bottom of groove 14, can be so that protuberance 32 inserts inner groovy 14.
In the present embodiment, the intersecting lens of the first side wall face 15 and the second side wall surface 16 is straight line, the first side wall face
15 and second the intersecting lens of side wall surface 16 be parallel to the plane at place, edge of outer surface 12, the edge of outer surface 12
The plane at place is vertical with the axis of this anti-slip screw.Screw endoporus 13 can be endoporus or the Flos Mume of regular polygon
Shape endoporus, the endoporus of this regular polygon can be that square hole, regular pentagon hole or regular hexagon hole are (such as Fig. 2
Shown in).
In the present embodiment, the first side wall face 15 is the plane parallel with the axis of this anti-slip screw, such as Fig. 4 institute
Show.Or, the first side wall face 15 is cambered surface or plane, as it is shown in figure 5, the first side wall face 15 with on screw rod 20
The relation of screw thread meets, when object screws this anti-slip screw of dismounting by contact the first side wall face 15, and the first side
Wall 15 provides the component pointing to screw rod 20 can to this object.I.e. object (such as the protuberance 32 of screwdriver)
During by the first side wall face 15 in hookup 5, one power to the right of this object can be given in the first side wall face 15,
So that this object slides to the bottom of inner groovy 14 without skidding off outside inner groovy 14 along the first side wall face 15, make spiral shell
Follow closely with screwdriver between can conductance more firm, skidding can be reduced further, it is simple to take out screw smoothly.It addition,
Second side wall surface 16 is cambered surface or the plane tilted relative to the first side wall face 15, the lower end court of the second side wall surface 16
Tilt to the first side wall face 15.
In the present embodiment, inner surface 11 is spherical a part of surface, and outer surface 12 is also spherical a part of table
The coincident of face, the edge of inner surface 11 and outer surface 12, the edge of outer surface 12 is circular.Inner surface 11
The diameter that the spherical diameter in place is spherical less than outer surface 12 place, the centre of sphere that inner surface 11 place is spherical and outer surface
The spherical centre of sphere in 12 places is respectively positioned on the axis of this anti-slip screw, as shown in Figures 3 to 5.
In the present embodiment, the intersecting lens of the first side wall face 15 and the second side wall surface 16 is positioned at the edge of outer surface 12
The plane at place, the first side wall face 15 is vertical with the axis of this anti-slip screw with the intersecting lens of the second side wall surface 16.
Along the axis direction of this anti-slip screw, the degree of depth of inner groovy 14 is to two/3rd point of screw endoporus 13 degree of depth
One of, along the circumference of head of screw 10, head of screw 10 is contained within two inner groovies 14, these two inner groovies symmetries
Be arranged at the both sides of the axis of this anti-slip screw, in i.e. two inner groovies 14 one with the axis of this anti-slip screw
For being completely superposed with another inner groovy 14 after axle rotation turnback, screw endoporus 13 is hex hole, two indents
Groove 14 lays respectively at two medial walls of screw endoporus 13, and two inner groovies 14 are with the axis shaft of this anti-slip screw
Symmetrical.
A kind of anti-slip screwdriver for screwing above-mentioned anti-slip screw, this anti-slip screwdriver contains hand grip portion and bar portion
30, this hand grip portion is positioned at the one end in bar portion 30, the other end in bar portion 30 be provided with match with screw endoporus 13 insert
Joint 31, the outer peripheral face of connection-peg 31 is provided with the protuberance 32 matched with inner groovy 14, such as Fig. 7 to Fig. 9 institute
Show.
During use, the connection-peg 31 of this anti-slip screwdriver and protuberance 32 the most corresponding with screw endoporus 13 and interior
Groove 14 mates grafting, and the outer surface 12 of head of screw 10 forms a part for smooth sphere, and protuberance 32 will not
Protrude from outer surface 12, as shown in Figure 10 to Figure 12.Now can screw this anti-slip by this anti-slip screwdriver
Screw, so that this anti-slip screw is installed to desired area or is removed.
The above, only specific embodiment of the utility model, it is impossible to limit the scope that utility model is implemented with it,
So the displacement of its equivalent assemblies, or the equivalent variations made according to this utility model scope of patent protection and modification, all answer
Still fall within the category that this patent is contained.It addition, between technical characteristic and technical characteristic in this utility model, technology special
Levy between technical scheme, all can use with independent assortment between technical scheme and technical scheme.
Claims (10)
1. an anti-slip screw, including head of screw (10) and screw rod (20), head of screw (10) contains inner surface
(11) and outer surface (12), inner surface (11) is towards screw rod (20), outer surface (12) and inner surface (11)
Towards on the contrary, head of screw (10) is contained within the screw endoporus (13) for screwing this anti-slip screw, its feature
It is, possibly together with at least one for screwing in this anti-slip screw in the head of screw (10) of described anti-slip screw
The edge of groove (14), inner groovy (14) attachment screw endoporus (13) and outer surface (12), along head of screw (10)
Circumference, inner groovy (14) contain the first side wall face (15) and the second side wall surface (16), the first side wall face (15)
Intersecting with the second side wall surface (16), the intersecting lens of the first side wall face (15) and the second side wall surface (16) is positioned at indent
The bottom of groove (14).
Anti-slip screw the most according to claim 1, it is characterised in that the first side wall face (15) and second
The intersecting lens of side wall surface (16) is straight line, and the first side wall face (15) are parallel with the intersecting lens of the second side wall surface (16)
In the plane at the place, edge of outer surface (12), the plane at the place, edge of outer surface (12) and this anti-slip screw
Axis vertical.
Anti-slip screw the most according to claim 2, it is characterised in that the first side wall face (15) are and this
The plane that the axis of anti-slip screw is parallel.
Anti-slip screw the most according to claim 2, it is characterised in that the first side wall face (15) are cambered surface
Or plane, when object screws this anti-slip screw of dismounting by contact the first side wall face (15), the first side wall face (15)
There is provided the component pointing to screw rod (20) can to this object.
Anti-slip screw the most according to claim 2, it is characterised in that the second side wall surface (16) is cambered surface
Or the plane tilted relative to the first side wall face (15).
Anti-slip screw the most according to claim 1, it is characterised in that inner surface (11) is spherical one
Part surface, outer surface (12) is also spherical a part of surface, the edge of inner surface (11) and outer surface (12)
Coincident, the edge of outer surface (12) is circular.
Anti-slip screw the most according to claim 6, it is characterised in that inner surface (11) place is spherical
Diameter less than the spherical diameter in outer surface (12) place, the centre of sphere that inner surface (11) place is spherical and outer surface (12)
The spherical centre of sphere in place is respectively positioned on the axis of this anti-slip screw.
Anti-slip screw the most according to claim 6, it is characterised in that the first side wall face (15) and second
The intersecting lens of side wall surface (16) is positioned at the plane at the place, edge of outer surface (12), the first side wall face (15) and
The intersecting lens of two side wall surfaces (16) is vertical with the axis of this anti-slip screw.
Anti-slip screw the most according to claim 6, it is characterised in that along the axis side of this anti-slip screw
To, the degree of depth of inner groovy (14) is 1st/to two/3rd of screw endoporus (13) degree of depth, along head of screw (10)
Circumference, head of screw (10) is contained within two inner groovies (14), symmetrical being arranged at of these two inner groovies (14)
The both sides of the axis of this anti-slip screw.
10. the anti-slip screwdriver being used for screwing anti-slip screw described in claim 1, it is characterised in that this is prevented
Skidding screwdriver contains hand grip portion and bar portion (30), and this hand grip portion is positioned at one end of bar portion (30), bar portion (30)
The other end is provided with the connection-peg (31) matched with screw endoporus (13), the outer peripheral face of connection-peg (31) be provided with
The protuberance (32) that inner groovy (14) matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117601.5U CN205459002U (en) | 2016-02-05 | 2016-02-05 | Prevent slipped screw and prevent screwdriver that skids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620117601.5U CN205459002U (en) | 2016-02-05 | 2016-02-05 | Prevent slipped screw and prevent screwdriver that skids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205459002U true CN205459002U (en) | 2016-08-17 |
Family
ID=56673989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620117601.5U Expired - Fee Related CN205459002U (en) | 2016-02-05 | 2016-02-05 | Prevent slipped screw and prevent screwdriver that skids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205459002U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214068A (en) * | 2017-01-25 | 2019-09-06 | 蛇牌股份公司 | The accurate screwdriver of axis |
-
2016
- 2016-02-05 CN CN201620117601.5U patent/CN205459002U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110214068A (en) * | 2017-01-25 | 2019-09-06 | 蛇牌股份公司 | The accurate screwdriver of axis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10682169B2 (en) | Bone screw | |
| US20150196335A1 (en) | Orthopedic fastener | |
| US9277947B2 (en) | Variable angle bone fixation device | |
| JP4971195B2 (en) | Plates and screws for fracture treatment | |
| US8632336B2 (en) | Tooth implant | |
| CA2569392C (en) | Endosseous dental implant | |
| CA2466417A1 (en) | Closure plug for open-headed medical implant | |
| WO2005086649B1 (en) | Biased angle polyaxial pedicle screw assembly | |
| US20100055646A1 (en) | Bionic dental implant | |
| JPH05228162A (en) | Fixing member | |
| US20080092699A1 (en) | Wallboard screw with bi-tapered socket for receiving a bi-tapered screw driver tip | |
| US9861455B2 (en) | Dental implant system | |
| TW201540253A (en) | Bone plate with enlarged angle of inclination for a bone anchor to a favored side | |
| US20060199150A1 (en) | Externally-threaded, one-piece endosseous dental implant with angled abutment | |
| EP1350967A3 (en) | Male screw part | |
| CN1126874C (en) | Screw | |
| US7059855B2 (en) | Dental implant system | |
| CN205459002U (en) | Prevent slipped screw and prevent screwdriver that skids | |
| US20030136039A1 (en) | Hang tag for sockets | |
| US20050136380A1 (en) | Endosseous dental implant | |
| WO2017054506A1 (en) | Transverse shifting screw-tail, laterally adjustable spinal screw and implantation method | |
| CN109310487B (en) | Screwdriver and screw for medical, in particular dental, applications | |
| CN208822942U (en) | A kind of fixed holder device of minimally invasive drift | |
| CN112754699A (en) | Implant and implant system | |
| US10052178B2 (en) | Implant fixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180205 |