CN2487479Y

CN2487479Y - Device for cutting pipes

Info

Publication number: CN2487479Y
Application number: CN 01245253
Authority: CN
Inventors: 玉置英树
Original assignee: LIKESHI ELECTROMECHANICAL INDUSTRY Co Ltd SUZHOU
Current assignee: LIKESHI ELECTROMECHANICAL INDUSTRY Co Ltd SUZHOU
Priority date: 2001-08-06
Filing date: 2001-08-06
Publication date: 2002-04-24
Anticipated expiration: 2011-08-06

Abstract

A device for cutting pipes comprises a fixed casing [4] and a moving casing [8], wherein a screw stem [14] passes through the inside of the fixed casing [4] and has the external end connected with a handle [9]; the screw stem [14] is connected with a turnbuckle [15] through screw thread; the right side above the screw stem [14] is provided with a cutting knife shaft [6] arranged on the moving casing [8], while the left side above the screw stem [14] is provided with an upper pin shaft [1] and a lower pin shaft [17]. The utility model is characterized in that: the cutting knife shaft [6] is sleeved with the inner ring of a cutting knife bearing [5], while the outer ring of the cutting knife bearing [5] is fixed with a ring cutting knife [7]. Arranged on the cutting knife bearing, the cutting knife can rotate flexibly during cutting pipe along with less friction and labor saving.

Description

Casing knife

The utility model relates to a kind of shearing device of metal tube.

In the prior art, casing knife comprises stationary housing, mobile shell; Passed screw rod in the described stationary housing, the outer end of described screw rod is connected with the handle in the outside that is positioned at stationary housing, and the described screw rod swivel nut threaded engagement interior with being fixed in mobile shell is connected; The right side, top of described screw rod is provided with the slitter shaft perpendicular to screw rod, and this slitter shaft is arranged on the mobile shell; The left side, top of described screw rod is provided with upper pin and the lower bearing pin perpendicular to screw rod, and described upper pin and lower bearing pin are arranged on the stationary housing one on the other.Cutting knife directly is contained on the slitter shaft, pipe fitting is cut do the time, the frictional force in cutting knife when rotation is big, rotates dumbly, therefore cutting is required great effort, cut quality is relatively poor.

The purpose of this utility model is to provide a kind of cutting knife to rotate casing knife flexibly.

The technical solution of the utility model is: a kind of casing knife comprises stationary housing, mobile shell; Passed screw rod in the described stationary housing, the outer end of described screw rod is connected with the handle in the outside that is positioned at stationary housing, and the described screw rod swivel nut threaded engagement interior with being fixed in mobile shell is connected; The right side, top of described screw rod is provided with the slitter shaft perpendicular to screw rod, and this slitter shaft is arranged on the mobile shell; The left side, top of described screw rod is provided with upper pin and the lower bearing pin perpendicular to screw rod, described upper pin and lower bearing pin are arranged on the stationary housing one on the other, be with the inner ring of cutting knife bearing on the described slitter shaft, be fixed with annular cutting knife on the outer ring of described cutting knife bearing.

The utility model compared with prior art has following advantage:

Because cutting knife is contained on the cutting knife bearing, so cutting knife rotates when pipe fitting is cut flexibly, and frictional force is little, rapid operation, and when cutting, blade is stressed more even in rotation, and the cut quality of pipe fitting uprises, the life-span prolongation of cutting knife.

The utility model will be further described below in conjunction with drawings and Examples:

Accompanying drawing 1 is an outward appearance front view of the present utility model;

Accompanying drawing 2 is the A-A direction cutaway view of accompanying drawing 1;

Accompanying drawing 3 is the B-B direction cutaway view of accompanying drawing 2; Wherein:

[1], upper pin; [2], upper bearing (metal); [3], pin sleeve; [4], stationary housing; [5], cutting knife bearing; [6], slitter shaft; [7], cutting knife; [8], mobile shell; [9], handle; [10], screw; [11], flat shim; [12], pad; [13], back-up ring; [14], screw rod; [15], swivel nut; [16], elastic cylindrical pin; [17], lower bearing pin; [18], lower bearing;

Embodiment: referring to accompanying drawing, a kind of casing knife comprises stationary housing [4], mobile shell [8]; Passed screw rod [14] in the described stationary housing [4], the outer end of described screw rod [14] is connected with the handle [9] in the outside that is positioned at stationary housing [4], and described screw rod [14] swivel nut [15] threaded engagement interior with being fixed in mobile shell [8] is connected; The right side, top of described screw rod [14] is provided with the slitter shaft [6] perpendicular to screw rod [14], and this slitter shaft [6] is arranged on the mobile shell [8]; The left side, top of described screw rod [14] is provided with upper pin [1] and the lower bearing pin [17] perpendicular to screw rod [14], described upper pin [1] and lower bearing pin [17] are arranged on the stationary housing [4] one on the other, be with the inner ring of cutting knife bearing [5] on the described slitter shaft [6], be fixed with annular cutting knife [7] on the outer ring of described cutting knife bearing [5].

Be with upper bearing (metal) [2] on the described upper pin [1], be with lower bearing [18] on the described lower bearing pin [1].

Be with a plurality of upper bearing (metal)s [2] on the described upper pin [1].

Be with a plurality of lower bearings [18] on the described lower bearing pin [1].

During use, pipe is put between cutting knife [7] and upper bearing (metal) [2], the lower bearing [18], rotary handle [9] makes cutting knife

Contact with pipe, rotation stationary housing [4], then slow rotary handle [9] makes cutting knife [9] slowly cut tube surface, until cut-out.

Claims

1, a kind of casing knife comprises stationary housing [4], mobile shell [8]; Passed screw rod [14] in the described stationary housing [4], the outer end of described screw rod [14] is connected with the handle [9] in the outside that is positioned at stationary housing [4], and described screw rod [14] swivel nut [15] threaded engagement interior with being fixed in mobile shell [8] is connected; The right side, top of described screw rod [14] is provided with the slitter shaft [6] perpendicular to screw rod [14], and this slitter shaft [6] is arranged on the mobile shell [8]; The left side, top of described screw rod [14] is provided with upper pin [1] and the lower bearing pin [17] perpendicular to screw rod [14], described upper pin [1] and lower bearing pin [17] are arranged on the stationary housing [4] one on the other, it is characterized in that: be with the inner ring of cutting knife bearing [5] on the described slitter shaft [6], be fixed with annular cutting knife [7] on the outer ring of described cutting knife bearing [5].

2, casing knife according to claim 1 is characterized in that: be with upper bearing (metal) [2] on the described upper pin [1], be with lower bearing [18] on the described lower bearing pin [1].

3, casing knife according to claim 2 is characterized in that: be with a plurality of upper bearing (metal)s [2] on the described upper pin [1].

4, casing knife according to claim 2 is characterized in that: be with a plurality of lower bearings [18] on the described lower bearing pin [1].