CN202399178U - Spanner with teeth - Google Patents
Spanner with teeth Download PDFInfo
- Publication number
- CN202399178U CN202399178U CN2011205590914U CN201120559091U CN202399178U CN 202399178 U CN202399178 U CN 202399178U CN 2011205590914 U CN2011205590914 U CN 2011205590914U CN 201120559091 U CN201120559091 U CN 201120559091U CN 202399178 U CN202399178 U CN 202399178U
- Authority
- CN
- China
- Prior art keywords
- spanner
- internal tooth
- circular port
- force
- driving end
- 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 - Lifetime
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a spanner with teeth, which comprises a spanner head and a spanner torque arm. The spanner is characterized in that the spanner head is provided with a circular port, and no less than three internal tooth parts pointing to the direction of the center of the circle are arranged at the circular port and evenly distributed on the circular port. The preferential number of the internal tooth parts is six. According to the spanner with teeth, no less than three internal tooth parts are arranged at the circular port of the spanner head, each of the internal parts can be closely matched with corresponding notches of nuts during the mounting and dismounting process of ER type nuts with notches, the stressed area is greatly increased, the torque is increased, rate of damage to the spanner and nuts can be reduced greatly, and the service life of tools and parts is prolonged.
Description
Technical field
The utility model relates to a kind of instrument that twists parts such as bolt, nut, especially a kind of spanner.
Background technology
Generally, crescent wrenches is all adopted in the mounting or dismounting of ER type splined nut.This crescent wrenches has only two contact points in mounting or dismounting ER type splined nut process, receive torsion little, and stressed also inhomogeneous, causes the probability of damage bigger to spanner and nut, and use cost is high.
The utility model content
The task of the utility model is to solve the technological deficiency that the mounting or dismounting of ER type splined nut use spanner to exist in the prior art, and a kind of band tooth spanner is provided.
Its technical solution is:
A kind of band tooth spanner comprises the driving end and the spanner arm of force, is provided with a circular port at driving end, and circular port is provided with and is no less than three internal tooth portions that point to center of circle direction, all internal tooth portion equiblibrium mass distributions on circular port.
The quantity of above-mentioned internal tooth portion is no less than six.
The cross section of above-mentioned each internal tooth portion is similar to square or rectangular, drift angle place camber transition outside two.
The above-mentioned driving end and the spanner arm of force are integral structure, and its overall profile is similar to lath-shaped.
The free end of the above-mentioned spanner arm of force is provided with circular through-hole.
The above-mentioned spanner arm of force is from the consistency of thickness of its free end to itself and driving end connecting part, and width then broadens gradually.
The utlity model has following useful technique effect:
Its driving end circular port of the utility model is provided with the internal tooth portion that quantity is no less than three; Like six internal tooth portions, in mounting or dismounting ER type splined nut process, each internal tooth portion can closely cooperate with the corresponding notch of nut one by one; Increase lifting surface area greatly; And add high pulling torque, can significantly reduce damage probability, the service life of prolongation instrument and parts to spanner and nut.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further:
Fig. 1 is the structural principle sketch map of a kind of embodiment of the utility model.
Fig. 2 shows structural representation for the A-A of Fig. 1 cuts open.
The specific embodiment
In conjunction with Fig. 1 and Fig. 2, a kind of band tooth spanner comprises the driving end 1 and the spanner arm of force 2.Preferably, the above-mentioned driving end and the spanner arm of force are integral structure, and its overall profile is similar to lath-shaped; And the above-mentioned spanner arm of force is from the consistency of thickness of its free end to itself and driving end connecting part, and width then broadens gradually.The free end of the above-mentioned spanner arm of force is provided with circular through-hole 3, and the purpose that circular through-hole is set is to carry for ease and suspension is deposited etc.Be provided with a circular port 4 at driving end, circular port is provided with six internal tooth portions 5 that point to center of circle direction, all internal tooth portion equiblibrium mass distributions on circular port; Preferably, the cross section of above-mentioned each internal tooth portion can be similar to square or rectangular, drift angle place camber transition outside two.
Except that above-mentioned embodiment, different according to the groove number of mounting or dismounting splined nut, can there be the selection on three, four, five, eight or 12 or the like the varying number in the internal tooth portion of the utility model.
Except that above-mentioned embodiment, according to varying in size of mounting or dismounting splined nut, the size of the utility model driving end, specifications such as the length of the spanner arm of force and shape can be made freely and being selected.
The utility model can be processed torsion band tooth spanner, combination cutter tooth spanner or universal band tooth spanner or the like.The scope of application includes but not limited to fields such as machine part, auto parts, other locomotive fittingses, electric mechanical or medical chemical industry.
Need to prove that those skilled in the art can also make such or such easy variation pattern under the instruction of this specification, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should be within the protection domain of the utility model.
Claims (7)
1. a band tooth spanner comprises the driving end and the spanner arm of force, it is characterized in that: be provided with a circular port at driving end, circular port is provided with and is no less than three internal tooth portions that point to center of circle direction, all internal tooth portion equiblibrium mass distributions on circular port.
2. band tooth spanner according to claim 1 is characterized in that: the quantity of said internal tooth portion is no less than six.
3. band tooth spanner according to claim 2 is characterized in that: the quantity of said internal tooth portion is six.
4. band tooth spanner according to claim 1 is characterized in that: the cross section of said each internal tooth portion is similar to square or rectangular, drift angle place camber transition outside two.
5. band tooth spanner according to claim 1 is characterized in that: the said driving end and the spanner arm of force are integral structure, and its overall profile is similar to lath-shaped.
6. band tooth spanner according to claim 5, it is characterized in that: the free end of the said spanner arm of force is provided with circular through-hole.
7. band tooth spanner according to claim 6 is characterized in that: the said spanner arm of force is from the consistency of thickness of its free end to itself and driving end connecting part, and width then broadens gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205590914U CN202399178U (en) | 2011-12-28 | 2011-12-28 | Spanner with teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205590914U CN202399178U (en) | 2011-12-28 | 2011-12-28 | Spanner with teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202399178U true CN202399178U (en) | 2012-08-29 |
Family
ID=46696854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205590914U Expired - Lifetime CN202399178U (en) | 2011-12-28 | 2011-12-28 | Spanner with teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202399178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639956A (en) * | 2013-11-16 | 2014-03-19 | 苏州华恒医用器械有限公司 | Medical mobile phone rear cover wrench |
-
2011
- 2011-12-28 CN CN2011205590914U patent/CN202399178U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639956A (en) * | 2013-11-16 | 2014-03-19 | 苏州华恒医用器械有限公司 | Medical mobile phone rear cover wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |