CN201922428U

CN201922428U - Chisel edge

Info

Publication number: CN201922428U
Application number: CN2010206465457U
Authority: CN
Inventors: 俞方明
Original assignee: ZHEJIANG YONGSHENG TOOL CO Ltd
Current assignee: ZHEJIANG YONGSHENG TOOL CO Ltd
Priority date: 2010-11-27
Filing date: 2010-11-27
Publication date: 2011-08-10
Anticipated expiration: 2020-11-27

Abstract

The utility model relates to a chisel edge. A plurality of edges are formed at the top end of the chisel edge along the central axis and constantly extend towards a chisel; the edges are connected with the chisel body to form a plurality of working surfaces; the working surfaces are constantly formed at the middle upper end of the integral chisel; four edges with radian are formed on the chisel edge and constantly extend from the end of the chisel edge along the radian to be connected with the chisel edge; the edges are formed at 2/3 positions of the integral chisel; four pointed inclined surfaces connected with the edges are arranged at the end of the chisel edge; the number of the edges formed at the top end of the chisel edge can be changed according to actual needs; the cross section of the chisel edge is cross; and a circular arc transitional surface is formed between each two edges. Compared with a past chisel with extremely short working surfaces, the chisel with larger working surfaces is longer in working time, the service life of the chisel is prolonged, frequent stop of working for grinding the working surfaces is not needed, and working efficiency is improved.

Description

Chisel edge

Technical field

The utility model relates to a kind of chisel edge of chisel.

Background technology

The chisel that be used for through wallsly threading a pipe in construction, electric wire etc. uses, comprise cutter handle, cutter body and chisel edge, chisel edge partly forms a plurality of sharp keen inclined-planes, there is defective in this set in the process of using, the sharp keen inclined-plane length available of chisel edge is very short, and very easily damages, need the big time of cost to go to the sharp keen inclined-plane of polishing again after damaging, could continue to devote oneself to work, bring great inconvenience to work like this, reduce operating efficiency greatly.

Summary of the invention

The purpose of this utility model is to overcome the defective of prior art, provides a kind of partial shape setting more reasonable, can make the chisel edge of the longer service life of chisel.

For achieving the above object, the utility model adopts a kind of chisel edge, and chisel edge operative tip Yanzhong axle forms many ribs, and this rib extends to the cutter body always, and is connected to form a plurality of working faces with the cutter body, and working face is formed up to the middle upper end of chisel entire length always.

The utility model further is set to chisel edge again, described chisel edge forms four ribs that have radian, extend to from the chisel edge end along radian always and cut a hole body and link to each other, be formed on 2/3 place of chisel entire length, described chisel edge end is provided with four sharp keen inclined-planes that link to each other with rib.

The utility model further is set to chisel edge again, the longitudinal cross-section of chisel edge part be shaped as cross, form the excessive face of circular arc between described rib and the rib.

The utility model is by the improvement to prior art, by above setting, the cross section of chisel edge is a cross, chisel edge is provided with four ribs that have radian along axle, rib forms and 2/3 of chisel integral body from the chisel edge end along radian always, rib is provided with sharp keen inclined-plane at the chisel edge end position, article four, the rib that has radian is provided with along axle collar shape and has formed four working faces, compared with the utmost point shortwall of chisel in the past, chisel working face described in the utility model is bigger, working time is longer, has prolonged the service life of chisel, has improved operating efficiency.

Description of drawings

Fig. 1 is the front view of the utility model embodiment.

Fig. 2 is the rearview of the utility model embodiment.

Fig. 3 is the vertical view of the utility model embodiment.

Fig. 4 is the upward view of the utility model embodiment.

Fig. 5 is the left view of the utility model embodiment.

Fig. 6 is that cutaway view is looked on the left side of the utility model embodiment chisel edge part.

The specific embodiment

Shown in Fig. 1-6, specific embodiment of the utility model is a chisel edge, chisel edge 3 operative tip Yanzhong axles form four ribs 31 that have radian, this rib 31 extends to cutter body 2 always, and with the cutter body 2 be connected to form a plurality of working faces, working face is formed on 2/3 of chisel integral body from chisel edge 3 ends along radian, described chisel edge 3 ends are provided with four sharp keen inclined-planes 32 that link to each other with rib 31, the rib number that chisel edge 3 operative tips form can change because of actual needs, the cross section of chisel edge 3 is a cross, form the excessive face of circular arc between rib and the rib, compared with the utmost point shortwall of chisel in the past, chisel working face described in the utility model is bigger, working time is longer, prolonged the service life of chisel, the polishing chisel edge working face that often quits work has when not required improved operating efficiency.

Claims

1. chisel edge, it is characterized in that: chisel edge operative tip Yanzhong axle forms many ribs, and this rib extends to the cutter body always, and is connected to form a plurality of working faces with the cutter body, and working face is formed up to the middle upper end of chisel entire length always.

2. chisel edge according to claim 1, it is characterized in that: described chisel edge forms four ribs that have radian, extend from the chisel edge end along radian with the cutter body always and link to each other, be formed on 2/3 place of chisel entire length, described chisel edge end is provided with four sharp keen inclined-planes that link to each other with rib.

3. chisel edge according to claim 1 and 2 is characterized in that: the longitudinal cross-section of chisel edge part be shaped as cross, form the excessive face of circular arc between described rib and the rib.