CN204277083U - Hand pinches circular saw - Google Patents

Abstract

The utility model discloses a kind of hand and pinch circular saw, comprise upper handle and lower handle, upper handle comprises rear press strip, circular saw, from gear, bolt, support plate bar, rivet, chute, wing bolt and front press strip, lower handle comprises spring and main tooth bar, during operation, push down sawed object on the other hand, the great thenar of another hand thumb penetrates in the slotted eye of upper handle back segment from back to front, other four fingers penetrate and penetrate in the slotted eye of lower handle from back to front, the middle seam of rear press strip and front press strip laterally aims at the black line drawn by sawed object, the below left hand edge of circular saw is placed in the starting point place of black line, on pinch four fingers, the left end in lower handle stage casing moves in direction to left down, what drive main tooth bar lower tooth mouth to be engaged rotates from gear and circular saw inhour and saws thing by setting-out, the hand that thereupon slowly moves forward pinches circular saw, until saw by the object sawed on demand, simple to operate, time saving and energy saving, efficient and convenient.

Description

Hand pinches circular saw

Technical field

The utility model relates to a kind of saw, particularly relates to a kind of hand and pinches circular saw.

Background technology

At present, when people do at home and repair, hacksaw is absolutely necessary one of instrument, but saw blade is easily broken, rocks large during saw thing, and cut object plane is not easily point-blank, and not laborsaving.

Summary of the invention

For above-mentioned prior art Problems existing, the utility model object is to provide a kind of hand to pinch circular saw, and simple to operate, time saving and energy saving, efficient and convenient.The technical solution of the utility model is: a kind of hand pinches circular saw, comprise upper handle and lower handle, described upper handle comprises rear press strip, circular saw, from gear, bolt, support plate bar, rivet, chute, wing bolt and front press strip, described lower handle comprises spring and main tooth bar.The leading portion of described upper handle is front press strip, the rear end of rear press strip is connected with the rear end of front press strip, the back edge of the lower limb horizontal leading edge and front press strip of inserting rear press strip of circular saw is formed in a gap, right section of upper handle is set to one and can penetrates comfortable slotted eye for left hand or great thenar, a groove is opened in upper handle stage casing from the top down, stage casing is oblique from front to back opens a chute, the length of two grooves is consistent, the right hand edge of support plate bar and chute lower edges parallel, the right-hand member of support plate bar is inserted into the lower limb of upper handle stage casing chute from the upper notch in upper handle stage casing, to screw in stomidium in the right of support plate bar wing bolt, mesopore internal fixtion bearing of support plate bar left end, with bolt from front to back through the inner ring of bearing, pass through circular saw with from gear center hole, to screw on again nut, the mesopore rivet interlacement in upper handle and lower handle stage casing.The leading portion of described lower handle is main tooth bar, main tooth bar is set to and the tooth mouth matched from gear teeth mouth below, the centre bore of the centre bore of main tooth bar right-hand member and the left end in lower handle stage casing, with a rivet interlacement, the lower end of spring is connected with the mid point of the left section of top edge in lower handle stage casing, and the upper end of spring is connected with the mid point of the left section of lower limb in upper handle stage casing.

Accompanying drawing explanation

Fig. 1 is the schematic diagram that the utility model hand pinches circular saw, in figure: 1 is rear press strip; 2 is circular saw; 3 is from gear; 4 is main tooth bar; 5 is lower handle; 6 is spring; 7 is upper handle; 8 is bolt; 9 is support plate bar; 10 is rivet; 11 is chute; 12 is wing bolt, and 13 is front press strip.

Detailed description of the invention

As shown in Figure 1, hand is pinched circular saw and is comprised upper handle 7 and lower handle 5, described upper handle 7 comprises rear press strip 1, circular saw 2, from gear 3, bolt 8, support plate bar 9, rivet 10, chute 11, wing bolt 12 and front press strip 13, described lower handle 5 comprises spring 6 and main tooth bar 4, the leading portion of described upper handle 7 is front press strip 13, the rear end of rear press strip 1 is connected with the rear end of front press strip 13, rear press strip 1 and front press strip 13 and plane-parallel, the back edge of the lower limb horizontal leading edge and front press strip 13 of inserting rear press strip 1 of circular saw 2 is formed in the gap of a wide 0.5cm, and the stage casing of upper handle 7 becomes 105 with leading portion ⁰angle, right section of upper handle 7 is set to one and can penetrates comfortable slotted eye for left hand or great thenar, upper handle 7 opens a groove from the top down apart from the front end 1cm in stage casing and rivet 10 1cm place, a chute 11 is opened apart from oblique from front to back between the front end 1cm and rivet 10 1cm place in stage casing, the length of two grooves is consistent, support plate bar 9 and front press strip 13 and rear press strip 1 one-tenth 30 ⁰angle, the middle-end boring on the right of support plate bar 9, the right hand edge of support plate bar 9 and chute 11 lower edges parallel, the right-hand member of support plate bar 9 is inserted into the lower limb of upper handle 7 stage casing chute 11 from the upper notch in upper handle 7 stage casing, the overall diameter of nut that wing bolt 12(bolt connects and butterfly nut screwed in the right hole of support plate bar 9 is greater than the width of skewed slot, the rubber washer that an external diameter is less than chute 11 width is respectively added) before and after bolt in the right-hand member hole of support plate bar 9, to screw on butterfly nut, wing bolt 12 can move left and right in chute 11 in company with the right-hand member of support plate bar 9, move up and down to drive the circular saw 2 of support plate bar 9 left end, reach the object of saw different-thickness object, mesopore internal fixtion bearing of support plate bar 9 left end, square is set to bolt 8(screw rod) from front to back through the inner ring of bearing, through four square holes at circular saw 2 center, go out four square holes from gear 3 center, to screw in the rear end of screw rod again nut, upper handle 7 is connected with rivet 10 with the mesopore in lower handle 5 stage casing, the leading portion of described lower handle 5 is main tooth bar 4, main tooth bar 4 is set to and the tooth mouth matched from gear 3 tooth mouth below, the centre bore of the centre bore of main tooth bar 4 right-hand member and the left end in lower handle 5 stage casing, with a rivet interlacement, the lower end of spring 6 is connected with the mid point of the left section of top edge in lower handle 5 stage casing, and the upper end of spring 6 is connected with the mid point of the left section of lower limb in upper handle 7 stage casing, during operation, push down sawed object on the other hand, the great thenar of another hand thumb penetrates in the slotted eye of upper handle 7 back segment from back to front, other four fingers penetrate penetrate lower handle 5 from back to front slotted eye in, the middle seam of rear press strip 1 and front press strip 13 laterally aims at the black line (black line is laterally placed in the centre of seam) drawn by sawed object, the below left hand edge of circular saw 2 is placed in the starting point place of black line, on pinch four fingers, the left end in lower handle 5 stage casing moves in direction to left down, what lower handle 5 leading portion was engaged with main tooth bar 4 lower tooth mouth rotates from gear 3 inhour, rotate with the circular saw 2 coaxial from gear 3 is simultaneously counter-clockwise and saws thing by setting-out, the hand that thereupon slowly moves forward pinches circular saw, until saw by the object sawed on demand, simple to operate, time saving and energy saving, efficient and convenient.

Claims (2)

1. hand pinches circular saw, comprise upper handle (7) and lower handle (5), it is characterized in that: the leading portion of described upper handle (7) is front press strip (13), the rear end of rear press strip (1) is connected with the rear end of front press strip (13), the lower limb of circular saw (2) is laterally inserted in the gap of the leading edge of rear press strip (1) and the back edge formation of front press strip (13), right section of upper handle (7) is set to one and can penetrates comfortable slotted eye for left hand or great thenar, a groove is opened in upper handle (7) stage casing from the top down, stage casing is oblique from front to back opens a chute (11), the right hand edge of support plate bar (9) and chute (11) lower edges parallel, the right-hand member of support plate bar (9) is inserted into the lower limb in upper handle (7) stage casing chute (11) from the upper notch in upper handle (7) stage casing, to screw in the middle stomidium on the right of support plate bar (9) wing bolt (12), mesopore internal fixtion bearing of support plate bar (9) left end, with bolt (8) from front to back through the inner ring of bearing, pass through circular saw (2) with from gear (3) centre bore, to screw on again nut, upper handle (7) is connected with rivet (10) with the mesopore in lower handle (5) stage casing.

2. hand pinches circular saw according to claim 1, it is characterized in that: the leading portion of described lower handle (5) is main tooth bar (4), main tooth bar (4) is set to and the tooth mouth matched from gear (3) tooth mouth below, the centre bore of the centre bore of main tooth bar (4) right-hand member and the left end in lower handle (5) stage casing, with a rivet interlacement, the lower end of spring (6) is connected with the mid point of the left section of top edge in lower handle (5) stage casing, and the upper end of spring (6) is connected with the mid point of the left section of lower limb in upper handle (7) stage casing.