CN202556520U - Regular triangle inner edge chisel - Google Patents
Regular triangle inner edge chisel Download PDFInfo
- Publication number
- CN202556520U CN202556520U CN2012202338042U CN201220233804U CN202556520U CN 202556520 U CN202556520 U CN 202556520U CN 2012202338042 U CN2012202338042 U CN 2012202338042U CN 201220233804 U CN201220233804 U CN 201220233804U CN 202556520 U CN202556520 U CN 202556520U
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- CN
- China
- Prior art keywords
- handle
- side knife
- knife surface
- back bar
- face
- 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 discloses a regular triangle inner edge chisel which comprises a chisel body (1) and a handle (2). The chisel body (1) comprises a front chisel body (1.1) and a rear rod (1.2), and the handle (2) is provided with a centre hole (2.1) in a communication mode, the rear end of the handle (2) is provided with an end head (3), the rear rod (1.2) penetrates the center hole (2.1) of the handle (2), and the rear end of the rear rod (1.2) is connected with the end head (3) in a detachable mode, a bolt (4) is arranged between the handle (2) and the rear rod (1.2), and the front chisel body (1.1) is shaped like a regular triangle. The chisel body and the handle of the regular triangle inner edge are detachable and capable of pouring out a convex strip with a lateral section which is shaped lie a regular triangle.
Description
Technical field
The utility model relates to a kind of cutter, specifically is a kind of just triangular inner edge chisel.
Background technology
Traditional chisel, its cutter hub and handle are fixing non-removable, and the blade of cutter hub front end is the straight knife body, and the cutting edge of blade front end is a flat edge.There is following defective in this chisel: at first, because cutter hub and handle are on-dismountable, and handle often damages easily, in case handle damages, whole chisel just is difficult to use even scrap; Secondly, straight knife body flat edge is difficult to process the raised line that cross section is an equilateral triangle.
Summary of the invention
The technical problem that the utility model will solve is, provides a kind of cutter hub and handle detachable and can pour out the just triangular inner edge chisel that cross section is the raised line of equilateral triangle.
The technical solution of the utility model is, a kind of just triangular inner edge chisel is provided, and it comprises cutter hub and handle; Cutter hub comprises anterior blade and back bar, and handle is through with centre bore, and handle rear end is provided with the termination; The rear end that back bar passes handle center hole and back bar is connected with the termination is removable, is provided with latch between handle and the back bar, and blade is the regular triangular prism blade; First side knife surface of blade and the second side knife surface area equate and first side knife surface and second side knife surface between angle be 60 degree, the 3rd side knife surface of blade is provided with triangular groove, first groove face of triangular groove is parallel with first side knife surface; Second groove face is parallel with second side knife surface, and the first groove face lordosis is provided with the first sword face in first side knife surface between first side knife surface and first groove face; The straight line of the first sword face and the first groove face intersection is first cutting edge; The second groove face lordosis is provided with the second sword face in second side knife surface between second side knife surface and second groove face, the straight line of the second sword face and the second groove face intersection is second cutting edge.
The just triangular inner edge chisel of the utility model compared with prior art has the following advantages:
Because the back bar is connected with the termination is removable; Like this, extract the latch between handle and the back bar, then back bar and termination are taken apart; Just can make things convenient for smoothly cutter hub is separated with handle; So after if handle damages, can change timely and conveniently, be difficult to after having avoided handle to damage to use even situation that whole chisel is scrapped; Again because blade is the regular triangular prism blade; The straight line of the first sword face and the first groove face intersection is first cutting edge; The straight line of the second sword face and the second groove face intersection is second cutting edge; So the triangular groove of this blade is touched raised line down, and two cutting edge processing works can be processed into the raised line that cross section is an equilateral triangle with raised line very easily.
As improvement, the termination is made up of end cap and internal thread sleeve pipe, and the internal thread sleeve pipe is contained in the centre bore; The external diameter of end cap is greater than the aperture of centre bore, and back bar is provided with external screw thread, and back bar and internal thread sleeve pipe screw; Like this; The end cap of termination is stuck in outside the centre bore of handle, and the back bar and the termination of cutter hub screw, and it is all convenient to make cutter hub be connected, dismantle with handle.
As improving again; Handle is provided with radial direction through hole; The position corresponding with radial direction through hole is provided with radially pin-and-hole on the back bar of cutter hub, and latch passes radial direction through hole and inserts radially in the pin-and-hole, like this; Can be quickly and easily that cutter hub and handle is circumferentially spacing through latch, prevent that the cutter hub rotation from getting loose from the internal thread sleeve pipe of termination.
Description of drawings
Fig. 1 is the structural representation of facing of the just triangular inner edge chisel of the utility model.
Fig. 2 be among Fig. 1 along A-A to analyse and observe the structure for amplifying sketch map.
Fig. 3 is the side sectional structure sketch map of the just triangular inner edge chisel of the utility model.
Fig. 4 is the structural representation of the just triangular inner edge chisel of the utility model.
Fig. 5 is the structural representation behind Fig. 4 deflection certain angle.
Fig. 6 is that the cross section of the just triangular inner edge chisel processing of the utility model is the sectional structure sketch map of the raised line of equilateral triangle.
Shown in the figure 1, cutter hub, 1.1, blade, 1.1.1, first side knife surface, 1.1.2, second side knife surface, 1.1.3, the 3rd side knife surface; 1.2, the back bar, 1.3, triangular groove, 1.3.1, first groove face, 1.3.2, second groove face, 1.4, the first sword face; 1.4.1, first cutting edge, 1.5, the second sword face, 1.5.1, second cutting edge, 2, handle, 2.1, centre bore; 3, termination, 3.1, end cap, 3.2, the internal thread sleeve pipe, 4, latch, 5, cross section is the raised line of equilateral triangle.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the just triangular inner edge chisel of the utility model, it comprises cutter hub 1 and handle 2.Cutter hub 1 comprises anterior blade 1.1 and back bar 1.2, and handle 2 is through with centre bore 2.1.Handle 2 rear ends are provided with termination 3; Back bar 1.2 passes the rear end and 3 removable connections of termination of handle 2 centre bores 2.1 and back bar 1.2; Be that termination 3 is made up of end cap 3.1 and internal thread sleeve pipe 3.2, internal thread sleeve pipe 3.2 is contained in the centre bore 2.1, and the external diameter of end cap 3.1 is greater than the aperture of centre bore 2.1; Back bar 1.2 is provided with external screw thread, and back bar 1.2 screws with internal thread sleeve pipe 3.2.In particular, the centre bore 2.1 of handle 2 is divided into preceding hole and metapore, and the metapore aperture is greater than aperture, preceding hole, and internal thread sleeve pipe 3.2 is contained in the metapore, and the external diameter of end cap 3.1 is greater than the aperture of the metapore of centre bore 2.1.Handle 2 and back are provided with latch 4 between the bar 1.2, and promptly handle 2 is provided with radial direction through hole, and the position corresponding with radial direction through hole is provided with radially pin-and-hole on the back bar 1.2 of cutter hub 1, and latch 4 passes radial direction through hole and inserts radially in the pin-and-hole.Blade 1.1 is a regular triangular prism blade 1.1; The first side knife surface 1.1.1 of blade 1.1 and the second side knife surface 1.1.2 area equate and the first side knife surface 1.1.1 and the second side knife surface 1.1.2 between angle be 60 degree; In other words, the cross section of this regular triangular prism blade 1.1 is an equilateral triangle.The 3rd side knife surface 1.1.3 of blade is provided with triangular groove 1.3; The first groove face 1.3.1 of triangular groove 1.3 is parallel with the first side knife surface 1.1.1; The second groove face 1.3.2 is parallel with the second side knife surface 1.1.2; The first groove face 1.3.1 lordosis is in the first side knife surface 1.1.1, promptly the first groove face 1.3.1 foremost before in the first side knife surface 1.1.1 foremost.The straight line that is provided with the first sword face, 1.4, the first sword faces 1.4 and the first groove face 1.3.1 intersection between the first side knife surface 1.1.1 and the first groove face 1.3.1 is the first cutting edge 1.4.1.The second groove face 1.3.2 lordosis is in the second side knife surface 1.1.2, promptly the second groove face 1.3.2 foremost before in the second side knife surface 1.1.2 foremost.The straight line that is provided with the second sword face, 1.5, the second sword faces 1.5 and the second groove face 1.3.2 intersection between the second side knife surface 1.1.2 and the second groove face 1.3.2 is the second cutting edge 1.5.1.
The triangular groove 1.3 of this blade 1.1 is touched raised line down, and two cutting edge processing works can be processed into the raised line 5 that cross section is an equilateral triangle with raised line very easily.
Because the blade 1.1 of this chisel be a regular triangular prism, and the cutting edge of this chisel is positioned on the inboard groove face rather than on the side knife surface outside being positioned at, so be called just triangular inner edge chisel.
Claims (3)
1. just triangular inner edge chisel; It comprises cutter hub (1) and handle (2); It is characterized in that: cutter hub (1) comprises anterior blade (1.1) and back bar (1.2); Handle (2) is through with centre bore (2.1); Handle (2) rear end is provided with termination (3); Back bar (1.2) passes the rear end and removable connection of termination (3) of handle (2) centre bore (2.1) and back bar (1.2), is provided with latch (4) between handle (2) and the back bar (1.2), and blade (1.1) is regular triangular prism blade (1.1); First side knife surface (1.1.1) of blade (1.1) and second side knife surface (1.1.2) area equate and first side knife surface (1.1.1) and second side knife surface (1.1.2) between angle be 60 to spend; The 3rd side knife surface (1.1.3) of blade is provided with triangular groove (1.3), and first groove face (1.3.1) of triangular groove (1.3) is parallel with first side knife surface (1.1.1), and second groove face (1.3.2) is parallel with second side knife surface (1.1.2); First groove face (1.3.1) lordosis is in first side knife surface (1.1.1); Be provided with the first sword face (1.4) between first side knife surface (1.1.1) and first groove face (1.3.1), the first sword face (1.4) is first cutting edge (1.4.1) with the straight line of first groove face (1.3.1) intersection, and second groove face (1.3.2) lordosis is in second side knife surface (1.1.2); Be provided with the second sword face (1.5) between second side knife surface (1.1.2) and second groove face (1.3.2), the second sword face (1.5) is second cutting edge (1.5.1) with the straight line of second groove face (1.3.2) intersection.
2. just triangular inner edge chisel according to claim 1; It is characterized in that: termination (3) are made up of end cap (3.1) and internal thread sleeve pipe (3.2); Internal thread sleeve pipe (3.2) is contained in the centre bore (2.1); The external diameter of end cap (3.1) is greater than the aperture of centre bore (2.1), and back bar (1.2) is provided with external screw thread, and back bar (1.2) screws with internal thread sleeve pipe (3.2).
3. just triangular inner edge chisel according to claim 1; It is characterized in that: handle (2) is provided with radial direction through hole; The back bar (1.2) of cutter hub (1) is gone up the position corresponding with radial direction through hole and is provided with radially pin-and-hole, and latch (4) passes radial direction through hole and inserts radially in the pin-and-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202338042U CN202556520U (en) | 2012-05-23 | 2012-05-23 | Regular triangle inner edge chisel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202338042U CN202556520U (en) | 2012-05-23 | 2012-05-23 | Regular triangle inner edge chisel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202556520U true CN202556520U (en) | 2012-11-28 |
Family
ID=47206216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202338042U Expired - Fee Related CN202556520U (en) | 2012-05-23 | 2012-05-23 | Regular triangle inner edge chisel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202556520U (en) |
-
2012
- 2012-05-23 CN CN2012202338042U patent/CN202556520U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20130523 |