CN2258799Y - Saw capable of quick replacing saw blade - Google Patents

Abstract

The utility model relates to a saw capable with quick replacement of a saw blade, which comprises a saw handle, a saw blade, a screw bolt and a handle. The utility model is realized by the utilization of a principle that three points of any triangle in a plane are fixed to cause the plane to be steady. The screw bolt (4) of a through hole (21) is used as a fulcrum, a bump (22) and a backbone (24) are used as two spacing points, and the saw blade (3) is fixed by the three points; a saw edge (30) or a saw back (35) are embedded in a groove of a screw bolt to make that the screw bolt (4) is screwed in or out to achieve the purpose of quick replacement of the saw blade. The utility model has the advantages that when the saw blade is replaced, a tool is unnecessary, members are less, and disassembly is convenient.

Description

But a kind of saw of quick change saw blade

But the utility model relates to a kind of saw of quick change saw blade.

Tradition saw handle, saw blade are because of adopting the rivet clasp mode, and shortcoming is a lot, and particularly the cognate saw maybe will be sharpened sawtooth and expend man-hour, maybe saw will be upgraded, and saw handle also abandons real the genus unfortunately thereupon.

The saw that someone creates replaceable saw blade to the overcoming of above-mentioned shortcoming, is this as described in Figure 1 beyond doubt.But must be solid because of this saw handle (10) and saw blade (11) by two groups of bolts (12) spiral shell, member is many, and the dismounting formality is numerous, the requirement that does not still reach quick replacing saw blade.

But the purpose of this utility model is to provide a kind of saw of quick change saw blade.

Design principle of the present utility model, in conjunction with Fig. 2 as can be known, it is to utilize 3 fixing firm principles in this plane that can make of plane arbitrary triangle to realize.Arm A metaphor saw blade among the figure, B is a fulcrum metaphor bolt, C, D are two spacing points, by B, C, 3 fixing arm of stability A that get final product of D.The utility model comprises that a handle that is provided with saw handle, a saw blade, a bolt and a trough of belt of spacing point constitutes.

How to realize below in conjunction with description of drawings the utility model;

Fig. 1, a kind of decomposing schematic representation of saw of replaceable saw blade

Fig. 2, the utility model principle schematic

Fig. 3, the utility model decomposing schematic representation

Fig. 4, the utility model assembling schematic diagram

Fig. 5 is along bolt position cutaway view

Fig. 6, saw handle skeleton schematic perspective view

The drawing explanation:

(1) saw of replaceable saw blade (10) saw handle

(100) groove (101) hole

(102) groove (11) saw blade

(110) sawtooth (111) hole

(12) bolt group (120) bolt

(121) nut

(2) saw handle (20) skeleton

(21) screw (22) projection

(23) hanging hole (24) back

(240) support end

(25) handle (26) (27) through hole

(28) groove (29) blowhole

(3) saw blade (30) rear end saw edge

(301) hump (31) hole

(32) eave tile (33) colludes groove

(4) bolt (40) groove

Fig. 3, Fig. 6 are described, mainly include: a saw handle (2), a saw blade (3), a bolt (4) and one handle (25), wherein:

This saw handle (2) is one to be falcate steel skeleton (20) and soft handle (25) Consist of; Wherein skeleton (20) comprises hole (21), cylindrical bump (22), bone Frame back (24) also has hanging hole (23), blowhole (29), skeleton back (24) Side-prominent to projection (22), and be looped around skeleton (20) outer rim, support end (240) end; Steel skeleton (20) made and is coated on by handle (25) with soft material The periphery, through hole (26), (27) are located to establish in corresponding aperture (21), (23), along its front end (250) to (251), support end (240) to internal recessing (28), make this groove depth To being enough to accommodating saw blade (3) hole (31) and skeleton (20) hole (21) overlaid; The needs that handle (25) waveform (252) grips for following staff, skeleton (20) Set hole (29) is intended to make this skeleton (20) to become in one with this handle (25) Strong bonded during shape.

This saw blade (3) is elongated, rear end (35) along hump (301) around to after Be provided with eave tile (32) between the end saw edge (30), collude groove (33), its mesopore (31) Must be corresponding to hole (21), snap fit (32), (33) just can cooperate projection (22), hole (31) support the distance of carrying on the back (301), just should cooperate screw (21) to back (24) distance. During assembling, again bolt (4) order is passed through hole (26), Hole (31), hole (21) are spirally connected. Utilize hump (35) or saw edge (30) to embed Bolt indentation (40) need not in addition standby gimlet with bolt (4) precession or back-out.

Claims (2)

1. But 1, a kind of saw of quick change saw blade includes saw handle, saw blade, bolt and handle, it is characterized in that:

   Described saw handle (2) is falcate steel skeleton (20) by one and soft handle (25) is constituted; Wherein skeleton (20) comprises hole (21), round bump (22), skeleton back (24), and skeleton back (24) is side-prominent to projection (22), and is looped around skeleton (20) outer rim, supports end (240) and end; Steel skeleton (20) periphery made and is coated on by handle (25) with soft material, locate to establish through hole (26), (27) in corresponding aperture (21), (23), along its front end (250) to (251), to holding (240), make this groove depth to being enough to ccontaining saw blade (3) hole (31) and skeleton (20) hole (21) overlaid to internal recessing (28);

   Described saw blade (3) is elongated, rear end (35) is provided with eave tile (32) around sawing between the edge (30) to the rear end, colludes groove (33) along hump (301), its mesopore (31) must just can cooperate projection (22) corresponding to hole (21), trip (32), (33), the distance of hole (21) to the back of the body (24) just joined to the distance of the back of the body (301) in hole (31);

   Described bolt (4) order is spirally connected by hole (26), (31), (21).
2. But 2, the saw of a kind of quick change saw blade according to claim 1 is characterized in that:

   Described skeleton (20) is provided with hole (23) so that wall hanging, so that around casting, handle (25) is provided with waveform (252) to follow the needs that staff grips hole (29).

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