CN209089479U

CN209089479U - A kind of bionical garden shears

Info

Publication number: CN209089479U
Application number: CN201821777335.4U
Authority: CN
Inventors: 王虎彪; 马云海; 赵宏伟; 齐红岩; 王慧鑫; 禹江涛; 芭芭拉·布尚; 庄健; 佟金
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2019-07-12
Anticipated expiration: 2028-10-31

Abstract

A kind of bionical garden shears category garden tool set technical field, the upper inner of half knife of knife I and half II is blade in the utility model, and its blade has bionical curvilinear structures, the upper outside of half knife of knife I and half II is the knife spine with bionical curve, the lower part of half knife I is knife handle and torsional spring installation through-hole and installs torsional spring, and knife spine is smoothly connected with lower part knife handle by circular arc；The bionical curve of bamboo rat front tooth is applied to garden shears blade structure by the utility model, design a kind of bionical garden shears, compared to the existing garden shears in market, its Cutting Drag is lower during shearing work, cutting efficiency is higher, and sharpness is more preferable, can once cut toughness plant, wearability is good, and the service life is longer long.

Description

A kind of bionical garden shears

Technical field

A kind of the utility model category garden tool set technical field, and in particular to bionical garden shears.

Background technique

Garden shears are easy to operate, easy to carry, are that gardener author carries out one of tool indispensable when horticulture-working.

There are the following problems for existing garden shears on the market: when same garden shears trim different type plant, Cutting edge wears no resistance vulnerable to damage, and service life is short；Inefficiency when trimming toughness plant, sharpness is inadequate, generally requires Shearing could cut plant more than twice.Therefore, wearability is strong, sharpness is good, cutting efficiency is high and long service life is not Carry out the developing direction of garden shears.

It is past research mostly start with from the arm of force of garden shears, material and overall structure improve garden shears wearability and Sharpness, and then working efficiency is improved, increase service life.The research of few garden shears blade structure designs, especially The research that bionic principle is applied to the design of garden shears blade structure is even more very few.Existing garden shears design and manufacture have Wait improve and perfect, need to explore new garden shears design and production method and theory.In existing garden shears design and manufacture side On the basis of method, with bionic principle, the sharp bionical garden shears of novel wear resistant is designed, its operating efficiency and service life are improved, All there is highly important theory significance and realistic meaning to the development of garden shears technology and afforestation industry.

Bamboo rat is gained the name because eating bamboo, and front tooth is coarse, have optimization geometry and excellent mechanical property, into During food, front tooth cutting efficiency is high, and suffered Cutting Drag is low, therefore the bionical curve of bamboo rat front tooth is applied to gardening The design of scissor blade structure, optimizes the geometry and mechanical property of garden shears, designs a kind of bionical novel gardening Scissors.

Summary of the invention

Utility model aims to solve the shortcomings of existing garden shears on the market, provide a kind of wearability By force, the bionical garden shears that sharpness is good, operating efficiency is high and service life is long.

The utility model is made of half knife, I A, half knife, II B, pin shaft 1 and torsional spring 2, wherein half knife, I A is by cutter head I 7 and knife handle I 4 compositions, cutter head I 7 and I 4 junction of knife handle are equipped with mesoporous I 6, and the nearly lower end of knife handle I 4 is equipped with hanging hole 5；Cutter head I 7 and knife handle I 4 connect Locate rounding off.

Half knife, II B is made of cutter head II 11 and knife handle II 9, and cutter head II 11 and II 9 junction of knife handle are equipped with mesoporous II 10；Knife First II 11 and II 9 junction rounding off of knife handle.

Cutter head I 7 is identical with the structure of cutter head II 11, contrary；The inner face of cutter head I 7 and cutter head II 11 is blade 3, knife First I 7 and cutter head II 11 outside be knife spine 8；The bionical curve C that the contour line of blade 3 is cd sections, the contour line of knife spine 8 are ef The curve D of section；Bionical curve C and the line of the upper end curve D are cf sections of straight line E, and the length of straight line E is 0.6-1.8mm.

It is flexibly connected in the middle part of II B of half knife, I A and half knife through pin shaft 1.

The left end of torsional spring 2 is fixed in the hanging hole 5 of knife handle I 4 in half knife, I A, knife handle II 9 in II B of the right end of torsional spring 2 and half knife Inner face be slidably connected.

The length H1 of half knife, I A is 160-200mm, and the length H2 of half knife, II B is 135-175mm, 1 axle center of pin shaft to half knife I The length S1 of I 4 lower end of knife handle is 95-125mm in A, and the thickness d 1 on II 9 top of knife handle is 0.8-2mm, half knife, II B in half knife, II B The width S 2 of middle II 9 lower part of knife handle is 7-12mm, and thickness d 2 is 1.5-4mm.

The mathematic(al) representation of the bionical curve C are as follows:

Y=0.0011x⁴-0.0336x³+0.3754x²+2.5962x-3.9563

Wherein: 1≤x≤20.

The mathematic(al) representation of the curve D are as follows:

Y=0.0186x³-0.2908x²-9.619x+12.369

Wherein: -12≤x≤4.

The utility model uses bionics principle, takes reverse Engineering Technology, is with the bamboo rat front tooth with characteristic feature Bionical prototype, to the analysis and research by way of bamboo rat front tooth structure, occlusion, obtain its cutting cooking cycle in low-power consumption, The Mechanism of characters of lower resistance and low abrasion, and using the curvilinear characteristic of bamboo rat front tooth, design a kind of bionical garden shears.

The bionical garden shears of the utility model compare the existing garden shears in market, it is cut during shearing work It is lower to cut resistance, cutting efficiency is higher, and sharpness is more preferable, can once cut toughness plant, wearability is good, and the service life is longer Long.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of bionical garden shears

Fig. 2 is the structural schematic diagram of half knife I

Fig. 3 is the dimension mark figure of half knife I

Fig. 4 is the rearview of half knife II

Fig. 5 is the partial enlarged view of a meaning in Fig. 1

Fig. 6 is the partial enlarged view of b meaning in Fig. 1

Fig. 7 is the blade curve of C meaning in Fig. 4

Fig. 8 is the back curve of D meaning in Fig. 4

Wherein: I 5. hanging hole of A. half knife, I B., half knife, II 1. pin shaft, 2. torsional spring, 3. blade, 4. knife handle, 6. mesoporous I 7. II 10. mesoporous of cutter head I 8. knife spine, 9. knife handle, II 11. cutter head II

Specific embodiment

The utility model is described in detail with reference to the accompanying drawing.

As shown in Figure 1, Figure 2, Figure 4 shows, the utility model is made of half knife, I A, half knife, II B, pin shaft 1 and torsional spring 2, wherein half I A of knife is made of cutter head I 7 and knife handle I 4, and cutter head I 7 and I 4 junction of knife handle are equipped with mesoporous I 6, and the nearly lower end of knife handle I 4 is equipped with hanging hole 5；I 4 junction rounding off of cutter head I 7 and knife handle；Half knife, II B is made of cutter head II 11 and knife handle II 9, cutter head II 11 and knife handle II 9 junctions are equipped with mesoporous II 10；II 9 junction rounding off of cutter head II 11 and knife handle；The structure of cutter head I 7 and cutter head II 11 It is identical, it is contrary；The inner face of cutter head I 7 and cutter head II 11 is blade 3, and the outside of cutter head I 7 and cutter head II 11 is knife spine 8；Knife The bionical curve C that the contour line of sword 3 is cd sections, the curve D that the contour line of knife spine 8 is ef sections；Bionical curve C and the upper end curve D Line be cf section straight line E, the length of straight line E is 0.6-1.8mm；It is flexibly connected in the middle part of II B of half knife, I A and half knife through pin shaft 1； The left end of torsional spring 2 is fixed in the hanging hole 5 of knife handle I 4 in half knife, I A, and the inner face of knife handle II 9 is sliding in II B of the right end of torsional spring 2 and half knife Dynamic connection.

As shown in Fig. 3, Fig. 5, Fig. 6, the length H1 of half knife, I A is 182mm, and the length H2 of half knife, II B is 142mm, pin shaft 1 The length S1 of axle center I 4 lower end of knife handle into half knife, I A is 111.5mm, and the thickness d 1 on II 9 top of knife handle is in half knife, II B The width S 2 of II 9 lower part of knife handle is 9mm in 1.2mm, half knife, II B, and thickness d 2 is 2mm.

As shown in fig. 7, the mathematic(al) representation of blade matched curve C are as follows: y=0.0011x⁴-0.0336x³+0.3754x²+ 2.5962x-3.9563, wherein: 1≤x≤20.

As shown in figure 8, the mathematic(al) representation of blade matched curve D are as follows: y=0.0186x³-0.2908x²-9.619x+ 12.369, in which: -12≤x≤4.

Claims

1. a kind of bionical garden shears, it is characterised in that: it is made of half knife I (A), half knife II (B), pin shaft (1) and torsional spring (2), Wherein half knife I (A) is made of cutter head I (7) and knife handle I (4), and cutter head I (7) and knife handle I (4) junction are equipped with mesoporous I (6), knife The nearly lower end of handle I (4) is equipped with hanging hole (5)；Cutter head I (7) and knife handle I (4) junction rounding off；Half knife II (B) is by cutter head II (11) and knife handle II (9) composition, cutter head II (11) and knife handle II (9) junction are equipped with mesoporous II (10)；Cutter head II (11) and knife Handle II (9) junction rounding off；Cutter head I (7) is identical with the structure of cutter head II (11), contrary；Cutter head I (7) and cutter head The inner face of II (11) is blade (3), and the outside of cutter head I (7) and cutter head II (11) is knife spine (8)；The contour line of blade (3) is cd The bionical curve C of section, the curve D that the contour line of knife spine (8) is ef sections；Bionical curve C and the line of the upper end curve D are cf sections straight The length of line E, straight line E are 0.6-1.8mm；It is flexibly connected in the middle part of half knife I (A) and half knife II (B) through pin shaft (1)；Torsional spring (2) Left end is fixed in the hanging hole (5) of knife handle I (4) in half knife I (A), the right end of torsional spring (2) in half knife II (B) knife handle II (9) it is interior Face is slidably connected；The length H1 of half knife I (A) is 160-200mm, and the length H2 of half knife II (B) is 135-175mm, pin shaft (1) axis The length S1 of heart knife handle I (4) lower end into half knife I (A) is 95-125mm, the thickness d 1 on knife handle II (9) top in half knife II (B) For 0.8-2mm, the width S 2 of knife handle II (9) lower part is 7-12mm in half knife II (B), and thickness d 2 is 1.5-4mm.

2. bionical garden shears according to claim 1, it is characterised in that: the mathematic(al) representation of the bionical curve C are as follows:

Y=0.0011x⁴-0.0336x³+0.3754x²+2.5962x-3.9563

Wherein: 1≤x≤20.

3. bionical garden shears according to claim 1, it is characterised in that: the mathematic(al) representation of the curve D are as follows:

Y=0.0186x³-0.2908x²-9.619x+12.369

Wherein: -12≤x≤4.