阅读说明：本技术 一种双齿手锯 (Double-tooth hand saw ) 是由 林寿生 于 2020-12-23 设计创作，主要内容包括：本发明涉及切割器具技术领域,且公开了一种双齿手锯,包括把手,所述把手的左侧连接有第一锯齿,所述第一锯齿的下方设置有第二锯齿,所述第一锯齿的外侧从左往右连接有第一辅助夹和第二辅助夹,所述第一辅助夹和第二辅助夹的顶部分别连接第一螺栓和第二螺栓,所述第一锯齿的外侧第一辅助夹和第二辅助夹之间设置有弹簧,所述弹簧的上侧和下侧分别连接有第二固定块和第一固定块,所述第二锯齿的左上侧开设有卡槽,所述把手的下侧连接有转轴,所述把手的下侧开设有缺口,所述转轴的外侧连接有限位杆,所述转轴的外侧连接有扳块。通过第一锯齿,第二锯齿,第一辅助夹和第二辅助夹的配合使用,从而达到了从所被切材料的两边同时切割的效果。(The invention relates to the technical field of cutting tools and discloses a double-tooth hand saw which comprises a handle, wherein the left side of the handle is connected with first saw teeth, second saw teeth are arranged below the first saw teeth, the outer side of the first saw teeth is connected with a first auxiliary clamp and a second auxiliary clamp from left to right, the tops of the first auxiliary clamp and the second auxiliary clamp are respectively connected with a first bolt and a second bolt, a spring is arranged between the first auxiliary clamp and the second auxiliary clamp outside the first saw teeth, the upper side and the lower side of the spring are respectively connected with a second fixing block and a first fixing block, the upper left side of the second saw teeth is provided with a clamping groove, the lower side of the handle is connected with a rotating shaft, the lower side of the handle is provided with a notch, the outer side of the rotating shaft is connected with a limiting rod, and the outer side of the rotating shaft is connected with a wrench block. Through the cooperation of first sawtooth, second sawtooth, first supplementary clamp and the supplementary clamp of second, thereby reached the effect of cutting simultaneously from the both sides of the material of being cut.)

1. A double-tooth handsaw comprises a handle (1), and is characterized in that: the left side of the handle (1) is connected with a first sawtooth (2), a second sawtooth (10) is arranged below the first sawtooth (2), the outer side of the first sawtooth (2) is connected with a first auxiliary clamp (5) and a second auxiliary clamp (6) from left to right, the tops of the first auxiliary clamp (5) and the second auxiliary clamp (6) are respectively connected with a first bolt (3) and a second bolt (4), a spring (7) is arranged between the first auxiliary clamp (5) and the second auxiliary clamp (6) on the outer side of the first sawtooth (2), the upper side and the lower side of the spring (7) are respectively connected with a second fixed block (9) and a first fixed block (8), the upper left side of the second sawtooth (10) is provided with a clamping groove (11), the lower side of the handle (1) is connected with a rotating shaft (15), and a notch (14) is formed on the lower side of the handle (1), the outer side of the rotating shaft (15) is connected with a limiting rod (12), the outer side of the rotating shaft (15) is connected with a spanner block (13), the outer side, close to the lower part, of the first auxiliary clamp (5) is connected with a third bolt (16), and the outer side, close to the lower part, of the second auxiliary clamp (6) is connected with a fourth bolt (17);

second recess (502) and first recess (501) have been seted up respectively to the upper and lower side of first supplementary clamp (5), first bolt hole (503) and second bolt hole (504) have been seted up respectively from top to bottom to being close to second recess (502) play of first supplementary clamp (5), track (505) have been seted up to first supplementary clamp (5) near first recess (501) one side.

2. A double-tooth hand saw as claimed in claim 1, wherein: the structure of the first auxiliary clamp (5) and the second auxiliary clamp (6) is completely the same as the connection mode of the first saw teeth (2).

3. A double-tooth hand saw as claimed in claim 1, wherein: the first bolt (3) and the second bolt (4) are respectively provided with two sets and are respectively connected to the first sawteeth (2) in an up-down symmetrical mode.

4. A double-tooth hand saw as claimed in claim 1, wherein: the first saw tooth (2) and the second saw tooth (10) are provided with bolt holes corresponding to the connecting parts of the first auxiliary clamp (5) and the second auxiliary clamp (6).

5. A double-tooth hand saw as claimed in claim 1, wherein: the two ends of the limiting rod (12) are U-shaped, and the pull block (13), the rotating shaft (15) and the limiting rod (12) are fixedly connected.

6. A double-tooth hand saw as claimed in claim 1, wherein: two sets of springs (7) are arranged on the front side and the rear side of the first sawtooth (2) respectively.

Technical Field

The invention relates to the technical field of cutting devices, in particular to a double-tooth hand saw.

Background

The hand saw is a common tool for manually cutting, can be used for cutting metal materials, wood, hard plastic and the like, and is widely applied to hardware processing. Hand saws typically consist of a saw-tooth handle. When the cutting machine is horizontally placed in a cutting mode, the two ends of the cutting machine are provided with supporting points, so that when materials without bending moment are produced, the cutting speed can be higher, and the operation efficiency is improved.

In order to cut the horizontal placement, both ends have the strong point, when the material of moment of flexure not produced, let the work efficiency of cutting, therefore the scheme has proposed a bidentate handsaw.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the double-tooth hand saw which has the advantages of high cutting speed and improvement on the cutting operation efficiency of workers, and solves the problem of low cutting efficiency.

(II) technical scheme

In order to achieve the purpose of improving the cutting efficiency, the invention provides the following technical scheme: a double-tooth hand saw comprises a handle, wherein the left side of the handle is connected with a first sawtooth, a second sawtooth is arranged below the first sawtooth, the outer side of the first sawtooth is connected with a first auxiliary clamp and a second auxiliary clamp from left to right, the tops of the first auxiliary clamp and the second auxiliary clamp are respectively connected with a first bolt and a second bolt, a spring is connected between the first auxiliary clamp and the second auxiliary clamp at the outer side of the first sawtooth, the upper side and the lower side of the spring are respectively connected with a second fixing block and a first fixing block, the left upper side of the second sawtooth is provided with a clamping groove, the lower side of the handle is connected with a rotating shaft, the lower side of the handle is provided with a notch, the outer side of the rotating shaft is connected with a limiting rod, the outer side of the rotating shaft is connected with a spanner block, the outer side of the first auxiliary clamp close to the lower part is connected with a third bolt, and the outer side of the second auxiliary clamp close to the lower part is connected with a fourth bolt;

second recess and first recess have been seted up respectively to the upper and lower side of first supplementary clamp, first bolt hole and second bolt hole have been seted up respectively from top to bottom to the second recess play that is close to of first supplementary clamp, first supplementary clamp is close to first recess one side and has seted up the track.

Preferably, the first auxiliary clamp and the second auxiliary clamp have the same structure and the same connection mode as the first saw teeth;

preferably, the first and second bolts are respectively provided with two sets and are respectively connected to the first sawteeth in an up-down symmetrical manner;

preferably, bolt holes are formed in the connecting parts of the first sawteeth and the second sawteeth and the first auxiliary clamp and the second auxiliary clamp correspondingly;

preferably, both ends of the limiting rod are U-shaped, and the wrench block, the rotating shaft and the limiting rod are fixedly connected;

preferably, the two sets of springs are respectively arranged at the front side and the rear side of the first sawtooth.

(III) advantageous effects

Compared with the prior art, the invention provides a double-tooth hand saw, which has the following beneficial effects:

1. this kind of bidentate handsaw, through first sawtooth, the second sawtooth, the cooperation of first supplementary clamp and the supplementary clamp of second is used to reach the effect of cutting simultaneously from the both sides of the material of being cut.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic cross-sectional view A-A of FIG. 1 according to the present invention;

FIG. 3 is a schematic structural view of an auxiliary clamp mechanism according to the present invention;

FIG. 4 is a schematic cross-sectional view of B-B of FIG. 3 according to the present invention.

In the figure: 1. a handle; 2. a first saw tooth; 3. a first bolt; 4. a second bolt; 5. a first auxiliary clip; 6. a second auxiliary clamp; 7. a spring; 8. a first fixed block; 9. a second fixed block; 10. a second saw tooth; 11. a card slot; 12. a limiting rod; 13. pulling a block; 14. a notch; 15. a rotating shaft; 16. a third bolt; 17. a fourth bolt; 501. a first groove; 502. a second groove; 503. a first bolt hole; 504. a second bolt hole; 505. a track.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a double-tooth handsaw comprises a handle 1, a first sawtooth 2 is connected to the left side of the handle 1, a second sawtooth 10 is arranged below the first sawtooth 2, a first auxiliary clamp 5 and a second auxiliary clamp 6 are connected to the outer side of the first sawtooth 2 from left to right, the first auxiliary clamp 5 and the second auxiliary clamp 6 have the same structure as the first sawtooth 2, the top of the first auxiliary clamp 5 and the top of the second auxiliary clamp 6 are respectively connected with a first bolt 3 and a second bolt 4, the first bolt 3 and the second bolt 4 are respectively provided with two sets which are respectively connected to the first sawtooth 2 in an up-down symmetrical manner, a spring 7 is arranged between the first auxiliary clamp 5 and the second auxiliary clamp 6 outside the first sawtooth 2, the two sets of springs 7 are respectively arranged at the front side and the rear side of the first sawtooth 2, a second fixing block 9 and a first fixing block 8 are respectively connected to the upper side and the lower side of the spring 7, the connecting parts of the first sawteeth 2 and the second sawteeth 10 and the first auxiliary clamp 5 and the second auxiliary clamp 6 are correspondingly provided with bolt holes, the left upper side of the second sawteeth 10 is provided with a clamping groove 11, the lower side of the handle 1 is connected with a rotating shaft 15, the lower side of the handle 1 is provided with a notch 14, the outer side of the rotating shaft 15 is connected with a limiting rod 12, two ends of the limiting rod 12 are both in a U shape, a pull block 13 is fixedly connected with the rotating shaft 15 and the limiting rod 12, the outer side of the rotating shaft 15 is connected with a pull block 13, the outer side of the first auxiliary clamp 5 close to the lower part is connected with a third bolt 16, and the outer side of the second auxiliary clamp 6 close to the lower part is connected with a;

the upper and lower sides of the first auxiliary clamp 5 are respectively provided with a second groove 502 and a first groove 501, the side of the first auxiliary clamp 5 close to the second groove 502 is respectively provided with a first bolt hole 503 and a second bolt hole 504 from top to bottom, and the side of the first auxiliary clamp 5 close to the first groove 501 is provided with a track 505.

The working process and principle are as follows: when the double-tooth hand saw provided by the invention is used, firstly, the first sawtooth 2 and the second sawtooth 10 are separated by hand, the wrench block 13 is rotated to clamp the bottom of the limiting rod 12 in the clamping groove 11, the hand handle 1 is held to place a material to be cut between the first sawtooth 2 and the second sawtooth 10, after the hand saw position is adjusted, the wrench block 13 is pulled forwards by using the forefinger, the plate block 13 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the limiting rod 12 to rotate around the joint of the limiting rod and the rotating shaft, the bottom of the limiting rod 12 leaves the clamping groove, the second sawtooth is drawn close to the rail 505 forwards under the action of the elastic force of the spring 7, the second sawtooth is close to the bottom of the cut material, the handle 1 drives the first sawtooth 2 to move forwards and backwards by moving the handle 1 forwards and backwards, meanwhile, the first auxiliary clamp 5 and the second auxiliary clamp 6 are driven by the first auxiliary clamp 5 and the second auxiliary clamp 6 to move forwards and backwards, the first sawteeth 2 and the second sawteeth 10 are respectively used for cutting the upper side and the lower side of a cut material, so that the purposes of cutting the material at two sides and improving the working efficiency are achieved.

In summary, the double-tooth hand saw has the advantages that the first saw teeth 2, the second saw teeth 10, the first auxiliary clamp 5 and the second auxiliary clamp 6 are matched for use, so that the effect of simultaneously cutting from two sides of a cut material is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.