CN213784231U

CN213784231U - Saw blade

Info

Publication number: CN213784231U
Application number: CN202022396776.3U
Authority: CN
Inventors: 朱瑞忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-07-27
Anticipated expiration: 2030-10-23

Abstract

The utility model discloses a saw bit, the sawtooth of saw bit is provided with: the front blade edge surface is provided with a front edge line, and an included angle A3 formed by the front edge line and the moving direction D1 is 70-85 degrees; the rear blade edge surface is connected with a rear frontal line, and an included angle A4 formed by the rear frontal line and the moving direction D1 is smaller than an included angle A3; the first frontal surface is connected with the front blade edge surface and the rear blade edge surface, and the second rear frontal line in the first frontal surface is connected with the first frontal line and the rear frontal line. The included angle A4 is 45-60 degrees. And the included angle A5 between the second rear edge and the front edge in the moving direction D1 is 0-30 degrees. The saw bit is provided with two and the face at front line and back front line place hugs closely together, and a plurality of sawtooth linear arrangement of saw bit, two saw bits have seted up the spout, still include: the pin is provided with more than two pins, the pins are inserted into the sliding grooves to movably fix the two saw blades together, and the two saw blades can swing back and forth. The utility model has the advantages of simple structure, low cost, light weight, picking efficiency is high, the damage to the plant is reduced.

Description

Saw blade

Technical Field

The utility model relates to a saw blade.

Background

In the picking process of fruits and vegetables such as apples and loofah, a relatively ideal method is that scissors are used for shearing, generally, in order to improve the speed, the scissors are provided with return springs, so that the scissors can be conveniently opened automatically, the force using degree of hands can be obviously increased when the spring scissors are used, when the picking quantity of the fruits and vegetables is not large, the influence on a human body is ignored, but if a fruit grower on a farm picks a large quantity of fruits and vegetables and repeats the same work year after year, skeletal deformation and muscle damage can occur to fingers of the person, particularly to a thumb, a forefinger and a tiger mouth, and the lifelong diseases can not be cured; in addition, the deep research shows that the fruits and vegetables are cut off by using the smooth cutting edge of the scissors, the damage degree to the fruit trees and the vegetables is minimum, the influence on the growth of the fruits and the vegetables in the next season is minimum, and the yield reduction of the fruits in the next season is reduced to the minimum degree; in order to solve the problems in the prior art, the electric scissors can be selected, but the design of the blades and the blade tips of the electric scissors is directly related to picking effect.

SUMMERY OF THE UTILITY MODEL

The utility model discloses according to above needs, provide a saw bit, it can regard as the blade of electric scissors for including but not limited to cutting out of melon and fruit vegetables.

The technical scheme of the utility model is that:

a saw blade, the teeth of the saw blade being provided with:

the front blade edge surface is provided with a front edge line, and an included angle A3 formed by the front edge line and the moving direction D1 is 70-85 degrees;

the rear blade edge surface is connected with a rear frontal line, and an included angle A4 formed by the rear frontal line and the moving direction D1 is smaller than an included angle A3;

the first frontal surface is connected with the front blade edge surface and the rear blade edge surface, and the second rear frontal line in the first frontal surface is connected with the first frontal line and the rear frontal line.

Further, the included angle A4 is 45-60 degrees.

Further, the included angle A1 between the front blade edge face and two faces of the saw blade is 70-80 degrees

The included angle A2 between the back blade surface and the two surfaces of the saw blade is 90-135 degrees.

Further, the angle A5 between the second rear front and the front of the moving direction D1 is 0-30 degrees.

Further, the saw bit is provided with two and the face at pioneer line and back front place and hugs closely together, and a plurality of sawtooth linear arrangement of saw bit, two saw bits have seted up the spout more than one, still include:

the pin is provided with more than two pins, the pins are inserted into the sliding grooves to movably fix the two saw blades together, and the two saw blades can swing back and forth.

Furthermore, two saw bits are fixed with the actuating lever respectively, and the actuating lever can be connected mechanical power source.

Further, the saw bit is provided with two and the face at pioneer line and back front place and hugs closely together, and a plurality of sawtooth circular arcs of saw bit are arranged, and the hinge hole has been seted up to two saw bits, still includes:

the pin is inserted into the hinge hole to movably fix the two saw blades together, and the two saw blades can rotate back and forth.

Furthermore, two saw bits are fixed with the dwang respectively, and the dwang can be connected mechanical power source.

The utility model has the advantages that when two saw blades are arranged on the electric scissors, the two saw blades swing back and forth or rotate in the opposite direction, so that the torsion generated by the movement or rotation direction of the saw blades only acts on fruits and vegetables and does not act on hands when picking, thereby lightening the stress of the hands; the utility model discloses under the prerequisite that need not to exert torsion, the total width of two saw bits can be designed more narrowly to can alleviate blade weight, reduce the frictional force between two saw bits, motor power can reduce, and picking device's total weight can alleviate, and garrulous end can effectively be got rid of to back sword cutting edge and pioneer's face, and the existence of preceding front can make melon and fruit vegetables's incision more smooth, enables melon and fruit vegetables growth in the future and reduces the damage that the wound brought.

The utility model has the advantages of simple structure, low cost, light weight, picking efficiency is high, the damage to the plant is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the saw tooth linear arrangement of the present invention.

Fig. 2 and 3 are schematic structural views of the saw teeth in fig. 1.

Fig. 4 is a schematic view of the overall structure of the saw tooth circular arc array of the present invention.

Fig. 5 and 6 are schematic structural views of the saw teeth in fig. 4.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings:

example 1: a saw blade, the saw teeth 51 of the saw blade 5 are provided with:

a front blade surface 512 provided with a front edge line 511, wherein an included angle A3 formed by the front edge line 511 and the moving direction D1 is 70-85 degrees, preferably 78-85 degrees;

the rear blade edge surface 516 is connected with a rear front edge 517, and an included angle A4 formed by the rear front edge 517 and the moving direction D1 is smaller than an included angle A3;

a leading edge 513 connecting the leading edge 512 and the trailing edge 516, and a second trailing edge 515 in the leading edge 513 connecting the leading edge 511 and the trailing edge 517.

The included angle A4 is 45-60 degrees, preferably 50-60 degrees.

The included angle A1 between the front blade face 512 and the two faces of the saw blade 5 is 70-80 degrees

The angle between the back blade face 516 and the two faces of the saw blade 5, A2, is 90-135 degrees.

The angle between the second rear edge 515 and the front edge in the moving direction D1, a5, is 0-30 degrees.

It should be noted that the back blade face 516 and the front face 513 can effectively remove the powder, different a5 is selected according to different plants, the low-density plants are close to 30 degrees, and the high-density plants are close to 0 degree.

It should be noted that when the saw blade 51 rotates, the moving direction D1 is a tangential direction, and the related included angle is related to the tangential direction.

The present embodiment can reduce the weight of the blade when the blade is replaced with a saw blade.

Example 2: on the basis of embodiment 1, saw bit 5 is provided with two and the face at front 511 and rear 517 is hugged closely together, and a plurality of sawtooth 51 linear arrangement of saw bit 5, two saw bits 5 have seted up more than one spout 52, and the optional elongated groove of spout 52 still includes:

the pins 61 are provided with more than two pins, the two saw blades 5 can be movably fixed together by inserting the pins into the sliding grooves 52, the two saw blades 5 can swing back and forth, the more than two pins 61 are inserted into the same sliding groove 52 for a longer long groove, and one pin 61 is inserted into each short long groove.

If the two saw blades 5 are fixed to the housing, the pin 61 is directly fixed to the housing, and the structure is simple.

In order to facilitate the connection with external power, the two saw blades 5 are respectively fixed with a driving rod 44, and the driving rods 44 can be connected with a mechanical power source. The mechanical power source can be driven by a motor, a gear, a crank and a connecting rod.

Embodiment 3, on the basis of embodiment 1, the saw bit is provided with two and the face at front line 511 and rear line 517 hugs closely together, and a plurality of saw teeth 51 circular arc of saw bit 5 are arranged, and two saw bits 5 have seted up the hinge hole, still include:

and the pin 61 is inserted into the hinge hole to movably fix the two saw blades 5 together, and the two saw blades 5 can rotate back and forth.

Similarly, if the two saw blades 5 are fixed on the housing, the pin 61 is directly fixed on the housing, and the structure is simple.

Two saw blades 5 are respectively fixed with a rotating rod 49, and the rotating rod 49 can be connected with a mechanical power source. Similarly, the mechanical power source can be driven by a motor, a gear, a crank and a connecting rod.

This embodiment adopts sawtooth 51 circular arc to arrange, and when its initial state contact melon and fruit vegetables, area of contact is littleer, cuts out the mouth more easily, and especially the stem of melon and fruit is harder, in case cut out behind the mouth, subsequent cutting can be easier, and picking effect is better.

Claims

1. A saw blade, characterized in that the saw teeth (51) of the saw blade (5) are provided with:

the front blade edge surface (512) is provided with a front edge line (511), and an included angle A3 formed by the front edge line (511) and the moving direction D1 is 70-85 degrees;

a rear cutting edge surface (516) connected with a rear front edge (517), wherein an included angle A4 formed by the rear front edge (517) and the moving direction D1 is smaller than an included angle A3;

and the front edge (513) is connected with the front edge surface (512) and the rear edge surface (516), and the second rear edge (515) in the front edge (513) is connected with the front edge (511) and the rear edge (517).

2. A saw blade as defined in claim 1, wherein:

the included angle A4 is 45-60 degrees.

3. A saw blade as defined in claim 1, wherein:

the included angle A1 between the front knife edge surface (512) and the two surfaces of the saw blade (5) is 70-80 degrees

The included angle A2 between the back blade surface (516) and the two surfaces of the saw blade (5) is 90-135 degrees.

4. A saw blade as defined in claim 1, wherein:

and the included angle A5 between the second rear edge (515) and the front edge of the moving direction D1 is 0-30 degrees.

5. The saw blade as claimed in any one of claims 1 to 4, wherein:

the saw bit is provided with the face at two and pioneer line (511) and back frontal line (517) places and hugs closely together, and a plurality of sawtooth (51) inline of saw bit, more than one spout (52) have been seted up in two saw bit (5), still include:

the number of the pins (61) is more than two, the pins are inserted into the sliding grooves (52) to movably fix the two saw blades (5) together, and the two saw blades (5) can swing back and forth.

6. The saw blade as claimed in claim 5, wherein:

two saw blades (5) are respectively fixed with a driving rod (44), and the driving rods (44) can be connected with a mechanical power source.

7. The saw blade as claimed in any one of claims 1 to 4, wherein:

the saw bit is provided with the face at two and pioneer line (511) and back frontal line (517) places and hugs closely together, and articulated hole has been seted up in a plurality of sawtooth (51) circular arc arrangement of saw bit, two saw bit (5), still includes:

and the pin (61) is inserted into the hinge hole to movably fix the two saw blades (5) together, and the two saw blades (5) can rotate back and forth.

8. The saw blade as claimed in claim 7, wherein:

two saw blades (5) are respectively fixed with a rotating rod (49), and the rotating rods (49) can be connected with a mechanical power source.