CN208974078U - One kind can thread docking pressurizing hollow screw - Google Patents
One kind can thread docking pressurizing hollow screw Download PDFInfo
- Publication number
- CN208974078U CN208974078U CN201820378184.9U CN201820378184U CN208974078U CN 208974078 U CN208974078 U CN 208974078U CN 201820378184 U CN201820378184 U CN 201820378184U CN 208974078 U CN208974078 U CN 208974078U
- Authority
- CN
- China
- Prior art keywords
- rivet nut
- inner hole
- tail end
- head end
- notch
- 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
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Abstract
The utility model relates to one kind can thread docking pressurizing hollow screw, including rivet nut, the inner hole being equipped with inside rivet nut；Rivet nut includes the first rivet nut, the second rivet nut；First rivet nut is pyramidal structure and its outer surface is equipped with screw thread；The notch one through rivet nut is equipped in the head end of the first rivet nut；First rivet nut tail end is recessed the notch two being connected to inner hole with the second rivet nut head end junction up and down；Second rivet nut is equipped with the threading opening being connected to inner hole.The utility model is simple and reasonable, easy to operate, and the taper full thread design of the first rivet nut is more conducive to pressurize；First rivet nut tail end can be disconnected with the second rivet nut head end junction；Two passivity notches in rivet nut cut convenient for threading and pre- defence line and nail joint synapsis；It can directly be squeezed into sclerotin with electric drill, it is simple time saving；The inner hole of positive quadrangular frustum pyramid shaped is easy so that taking out screw, is not easy to skid；Various knots and steel wire can be cooperated to use, pressure effect is more preferably；First rivet nut tail end can be embedded to random length as needed.
Description
Technical field
The utility model relates to medical equipment technical fields, and in particular to one kind can thread docking pressurizing hollow screw.
Background technique
In clinical medicine, medical treatment fracture or merged, bone-culting operation when, be typically employed to screw to bone plate into
Row is fixed, and when using in screw guide pin, screw will be made into hollow structure, and existing hollow nail mainly passes through head end spiral shell
Forcing screw content end to end is played the role of in the entrance of line, has the following problems: pressurization is not enough, and pressure effect is paid no attention to
Think；It is not easy to thread；It cannot cutting between pre- defence line and nail joint synapsis；Tail end is not easy to immerse oneself in, and often exposes 0.5-1.0
Centimetre in the outside of sclerotin；Core drill is needed to drill out screw way in advance；Hollow pore structure is pure hexagon, is easy to skid, be not easily taken out；
Nail tail, which expands place, to be embedded in cortical bone.
Utility model content
In view of the above-mentioned problems, easy to operate, pressurization is filled the purpose of this utility model is to provide a kind of simple and reasonable
Point, threading is easy, and taking-up screw is easy and be not easy to skid threads docking pressurizing hollow screw.Specific technical solution is as follows:
One kind can thread docking pressurizing hollow screw, including rivet nut, be equipped with inside rivet nut through inner hole end to end；The rivet nut
Including the first rivet nut, the second rivet nut；First rivet nut is pyramidal structure and its outer surface is equipped with screw thread；It is set in the head end of the first rivet nut
There is the notch one through rivet nut；First rivet nut tail end is recessed the slot being connected to inner hole with the second rivet nut head end junction up and down
Mouth two；Second rivet nut is hollow cylinder, which is provided with the threading opening being connected to inner hole.
It further, is the edge cutting line and nail pressure point that avoid notch one, notch two, the notch one, notch two
Edge be all passivity.
Further, it is in positive quadrangular frustum pyramid shaped structure that the inner hole, which is located at the first intracorporal part of nail, and is located at the second rivet nut
Interior part is in square prism shape structure.
Further, the head end diameter of first rivet nut is 3.0mm, and tail end diameter is 4.5mm；The second rivet nut head
End is until tail end diameter is 4.0mm.
Further, first rivet nut tail end can be broken disconnected with the second rivet nut head end junction.
Further, it is easier to break to break, first rivet nut tail end and the second rivet nut head end junction are 1-
The titanium of 1.5mm thickness.
The utility model is simple and reasonable, easy to operate, and the taper full thread design of the first rivet nut is more conducive to pressurize；The
One rivet nut tail end can be disconnected with the second rivet nut head end junction；Two passivity notches in rivet nut, convenient for threading and pre- defence line and
The cutting of nail joint synapsis；It can directly be squeezed into sclerotin with electric drill, it is simple time saving；The inner hole of positive quadrangular frustum pyramid shaped holds so that taking out screw
Easily, it is not easy to skid；Various knots and steel wire can be cooperated to use, pressure effect is more preferably；First rivet nut tail end can be embedded to as needed
Random length.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model one kind can thread docking pressurizing hollow screw；
Fig. 2 is the cross-sectional view of Fig. 1；
It is as shown in the figure: the first rivet nut of 1-, 2- inner hole, the second rivet nut of 3-, 4- threading opening, 5- notch two, 6- notch one.
Specific embodiment
The utility model is described in further details with reference to the accompanying drawing.
One kind of the utility model as shown in Figure 1 and Figure 2 can thread docking pressurizing hollow screw, including rivet nut, set inside rivet nut
Have through inner hole 2 end to end；The rivet nut includes the first rivet nut 1, the second rivet nut 3；First rivet nut 1 is pyramidal structure and its appearance
Face is equipped with screw thread；The notch 1 through rivet nut is equipped in the head end of the first rivet nut 1；First rivet nut, 1 tail end and the second rivet nut 3
End junction is recessed the notch 25 being connected to inner hole 2 up and down；Second rivet nut 3 be hollow cylinder, which is provided with it is interior
The threading opening 4 that hole 2 is connected to.
It further, is the edge cutting line and nail pressure point that avoid notch 1, notch 25, the notch 1, notch
25 edge is all passivity.
Further, the inner hole 2 is located at the part in the first rivet nut 1 in positive quadrangular frustum pyramid shaped structure, and is located at the second nail
Part in body 3 is in square prism shape structure.
Further, the head end diameter of first rivet nut 1 is 3.0mm, and tail end diameter is 4.5mm；Second rivet nut 3
Head end until tail end diameter be 4.0mm.
Further, 1 tail end of the first rivet nut can be broken disconnected with 3 head end junction of the second rivet nut.
Further, it is easier to break to break, 1 tail end of the first rivet nut and 3 head end junction of the second rivet nut are 1-
The titanium of 1.5mm thickness.
In use, can be connected to drill bit in the inner hole of 3 tail end of the second rivet nut, directly rivet nut is squeezed into sclerotin；
1 content of the first rivet nut that pressurizes is played the role of in the entrance of the screw thread in 1 outer surface face of the first rivet nut, and the first rivet nut 1 is ascending
It pressurizes, can be threaded in hollow nail rivet nut, and the pressurization that knots in notch.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. one kind can thread docking pressurizing hollow screw, including rivet nut, it is equipped with inside rivet nut through inner hole (2) end to end；Its feature
Be: the rivet nut includes the first rivet nut (1), the second rivet nut (3)；First rivet nut (1) is pyramidal structure and its outer surface is equipped with
Screw thread；The notch one (6) through rivet nut is equipped in the head end of the first rivet nut (1)；First rivet nut (1) tail end and the second rivet nut (3)
Head end junction is recessed the notch two (5) being connected to inner hole (2) up and down；Second rivet nut (3) is hollow cylinder, thereon
Equipped with the threading opening (4) being connected to inner hole (2).
2. one kind according to claim 1 can thread docking pressurizing hollow screw, it is characterised in that: the notch one (6), slot
The edge of two (5) of mouth is all passivity.
3. one kind according to claim 1 can thread docking pressurizing hollow screw, it is characterised in that: the inner hole (2) is located at
Part in first rivet nut (1) is in positive quadrangular frustum pyramid shaped structure, and the part being located in the second rivet nut (3) is in square prism shape knot
Structure.
4. one kind according to claim 3 can thread docking pressurizing hollow screw, it is characterised in that: the head of first rivet nut
End diameter is 3.0mm, and tail end diameter is 4.5mm；Second rivet nut (3) head end is until tail end diameter is 4.0mm.
5. one kind according to claim 4 can thread docking pressurizing hollow screw, it is characterised in that: first rivet nut (1)
Tail end can be broken disconnected with the second rivet nut (3) head end junction.
6. one kind described in any one of -5 can thread docking pressurizing hollow screw according to claim 1, it is characterised in that: described
First rivet nut (1) tail end and the second rivet nut (3) head end junction are the titanium of 1-1.5mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820378184.9U CN208974078U (en) | 2018-03-20 | 2018-03-20 | One kind can thread docking pressurizing hollow screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820378184.9U CN208974078U (en) | 2018-03-20 | 2018-03-20 | One kind can thread docking pressurizing hollow screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208974078U true CN208974078U (en) | 2019-06-14 |
Family
ID=66777967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820378184.9U Expired - Fee Related CN208974078U (en) | 2018-03-20 | 2018-03-20 | One kind can thread docking pressurizing hollow screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208974078U (en) |
-
2018
- 2018-03-20 CN CN201820378184.9U patent/CN208974078U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190614 Termination date: 20200320 |