CN209359016U - A kind of bush knife - Google Patents

Abstract

The utility model discloses a kind of bush knives, belong to cutter apparatus field.It is not high for bush knife service life in the prior art, the low problem of weeding ratio, the utility model provides a kind of bush knife, it includes vane body, and the centre of vane body is provided with mounting hole, it further include point of a knife, several points of a knife are in the equidirectional edge for being arranged in vane body, and a side of point of a knife is provided with blade, and two sides of point of a knife and the edge of vane body form triangle, transition face is provided between blade and blade, face is lower than plane where point of a knife where blade.The utility model is by being provided with the blade being completely coincident with side in point of a knife side, so that blade cutting weeds are high-efficient, point of a knife two sides form triangle with vane body and make the bonding strength of point of a knife and vane body higher, effectively avoid the problem that point of a knife frangibility under high speed operation state, whole service life is higher, for blade by drawing and forming intensity with higher, not easy to wear and structure is simple.

Description

A kind of bush knife

Technical field

The utility model belongs to cutter apparatus field, more specifically to a kind of bush knife.

Background technique

With the continuous improvement of living standards, people gradually start to pay attention to the greening in life, flower bed, courtyard, gardens It is more and more common Deng greening place, as the maintenance of increasingly popularization in greening place, these greening places also becomes one Important problem will not only bring the enjoyment of vision, but also decadent environment can also aggravate people if maintenance is not in time to people Feeling of fatigue, influence the normal life of people.

Grass trimmer is also known as weeder, brush cutter, lawn mower etc..Grass trimmer be it is a kind of for cutting the grass on a lawn, vegetation etc. Machine tool, it is made of cutterhead, engine, traveling wheel, walking mechanism, blade, handrail, control section.Cutterhead is mounted in On traveling wheel, engine is housed on cutterhead, blade is housed on the output shaft of engine, blade is existed using the high speed rotation of engine It is improved much in terms of speed, saves the activity duration of weeding worker, reduce a large amount of human resources.Brush cutter mainly passes through Motor drives cutter rotation to realize mowing effect, and outer casing bottom is equipped with movable pulley and is moved easily, while outer casing back is logical It is standing to have pushing hands, facilitate people to push brush cutter mobile by pushing hands.Peace between bush knife and brush cutter in the prior art Dress there is usually one circular mounting hole, connection relationship built on the sand, and the service life of the blade of bush knife and brush low efficiency； It is easily damaged.

It is also correspondingly improved regarding to the issue above, it is open such as Chinese Patent Application No. CN201320338657.X Day it is on December 25th, 2013, which disclose a kind of bush knife blade, is related to being used to brush cutter on a kind of golf course The blade of tool, including cutter blade, mounting hole, cutter blade are equipped with point of a knife, it is characterised in that: the point of a knife is trapezoidal, point of a knife It is equipped with point of a knife slot, the rectangular blade of hard alloy is welded in point of a knife slot.The utility model structure is simple, and design is closed Reason, by the improvement of the blade to brush blade, increases cutter blade intensity, improves work efficiency.The deficiency of the patent The connection in: the blade is in only by hollow a round hole or hex hole, there are problems that blade is easy to fall off, and knife Sword cutting is not thorough, and cutting efficiency is low.

For another example Chinese Patent Application No. 201320639226.7, publication date are on April 16th, 2014, and which disclose one The cutter of kind of brush cutter comprising knife plate, multiple blades being evenly distributed on knife plate circumference and be respectively used to adjust each The adjustment mechanism of blade, the center of knife plate offer connecting hole, and one end of blade is provided with blade, and adjustment mechanism includes installation Axis, nut and spring, installation axle are connect after sequentially passing through the mounting hole of blade and the mounting hole of knife plate with nut thread, spring pocket On the mounting shaft, one end is against blade, and the other end is against nut for dress.The blade section of the utility model cutter when not in use may be used It to be threaded to inside, avoids accidentally injuring user, when blade encounters the hard objects such as stone in work, because blade has one Fixed elasticity breaks without easily causing, and the service life is longer；And when breaks down, only need to change blade section, do not need by Entire cutter is replaced, and replacement is convenient, reduces unnecessary waste.The patent is disadvantageous in that: although the blade is more It changes conveniently, but blade cutting is insufficient, cutting efficiency is low.

Summary of the invention

1, it to solve the problems, such as

Not high for bush knife service life in the prior art, the low problem of weeding ratio, the utility model provides one kind Bush knife.So that whole cutting efficiency is high, edge strength is big, wear-resistant, and service life is high.

2, technical solution

To solve the above problems, the utility model adopts the following technical scheme.

The centre of a kind of bush knife, including vane body, vane body is provided with mounting hole, further includes point of a knife, if Dry point of a knife is in the equidirectional edge for being arranged in vane body, and a side of point of a knife is provided with blade, two sides of point of a knife with The edge of vane body forms triangle, transition face is provided between blade and blade, face is flat lower than where point of a knife where blade Face.Structure is simple, and weeding ratio is high and intensity is high, long service life.

Further, the blade includes sword head, sword body and sword tail, the setting of sword head at the top of the point of a knife on, sword body with Sword head is vertical setting, and sword tail and sword are as circular sliding slopes.Blade is obtained by drawing and forming, and higher integral strength, service life It is long.

Further, the place that sword head is connect with sword body is arc-shaped transition.It avoids stress from concentrating, improves whole strong Degree.

It further, further include location hole, location hole is arranged near mounting hole.So that vane body and brush cutter It connects more efficient and convenient.

Further, the location hole is divided into upper hole and bottom hole, and the diameter of upper hole is less than the diameter of bottom hole. Reinforce the connection with brush cutter.

Further, the place that location hole middle upper aperture is connect with bottom hole is provided with limiting slot, and limit trench bottom is set It is equipped with rubber convex block.Slow down the abrasion of limiting slot, so that vane body and brush cutter stable connection.

It further, further include sound absorption cotton, the sound absorption cotton is arranged in limiting slot.Reduce in entire weeding process Noise.

Further, sealing strip is circumferentially provided with along inner wall of the hole installing.Prevent weeds from entering in mounting hole.

Further, the mounting hole is round or polygon.Multiple choices are provided, provide convenience for client.

Further, the transition face is obliquely installed where point of a knife towards face where blade.It is pulled up in vane body Transition face is formd when stretching blade.

3, beneficial effect

Compared with the prior art, the utility model has the following beneficial effects:

(1) for the utility model by arranging in the equidirectional indention of several points of a knife, blade is arranged in a side of point of a knife, So that blade cutting weeds are high-efficient, two sides of point of a knife and the edge of vane body form triangle stabilization with higher Property, so that point of a knife and the bonding strength of vane body are higher, effectively avoid the problem that point of a knife frangibility under high speed operation state； Whole blade forms transition face lower than point of a knife, forms transition face, the intensity of whole blade when stretching blade in vane body It is higher, improve the service life of single unit system；

(2) the sword head in the blade in the utility model, sword body and sword tail are integrally formed by stretching in vane body, Again through polishing, brush blade different from the past, which needs first to polish, be mounted on blade, is substantially increased Production efficiency, and blade makes whole intensity high by drawing and forming, and wear-resistant, service life is high, saves life for enterprise Produce cost；

(3) place that sword head is connect with sword body in the utility model be in arc transition, effectively avoid in drawing and forming because Stress is concentrated and broken edge, and arc-shaped transition is but also blade top is higher with the intensity at middle part, in guarantee blade entirety Sharpness in the case where ensure that the intensity of blade entirety, service life are higher simultaneously；

(4) for the utility model also by being provided with location hole near mounting hole, which is divided into upper and lower part, Upper diameter is less than lower diameter, so that being conveniently adjusted when being installed with brush cutter with certain activity space, top Diameter is less than lower diameter, so that the brush cutter position that top is connect with location hole is not susceptible to shake, certain work is arranged at lower part Dynamic space, clever structure reinforce the connection of vane body and brush cutter；

(5) by being provided with limiting slot in the place that upper hole is connect with bottom hole, limit trench bottom is set the utility model Be equipped with rubber convex block, slow down the abrasion between location hole and brush cutter connecting portion, and rubber convex block have certain elasticity with Wearability forms certain activity space between rubber convex block and limiting slot, slow down the abrasion to limiting slot, improves whole make Use the service life；Setting sound absorption cotton, effectively slows down the noise generated during the work time in limiting slot；

(6) for the utility model by the way that sealing strip is arranged in inner wall of the hole installing surrounding, blade trims blade of grass under high-speed rotation Grass after trimming is rolled into mounting hole the normal work for influencing brush cutter by Shi Rongyi, and the setting of sealing strip can have Effect avoids weeds from entering in mounting hole, prevents weeds to be blocked in mounting hole, improves service life；

(7) mounting hole described in the utility model is round or shape changeable, and the processing is simple for circular mounting hole, polygon Mounting hole connection is more firm, and the diversification of mounting hole makes meet the needs of different clients, and use scope is wide；Blade surface is set It is equipped with wearing layer, in brush cutter work, blade is in the state that runs at high speed, and the setting of wearing layer can effectively slow down because of high speed Motoricity is worn to blade bring, effectively improves the service life of blade, saves entreprise cost.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of blade upward in the utility model；

Fig. 2 is the enlarged drawing at the position A in Fig. 1.

Figure number explanation:

1, mounting hole；2, location hole；21, limiting slot；3, blade；31, sword head；32, sword body；33, sword tail；4, blade master Body；5, point of a knife；6, transition face.

Specific embodiment

The utility model is further described below with attached drawing combined with specific embodiments below.

Embodiment 1

As shown in Figure 1, a kind of bush knife, including vane body 4, the centre of vane body 4 are provided with mounting hole 1, It further include point of a knife 5, several points of a knife 5 are in the equidirectional edge for being arranged in vane body 4, and a side of point of a knife 5 is provided with blade 3, it is preferred that 3 surface of blade is provided with wearing layer, and wearing layer is that the coating made of wear-resistant material aluminum oxide is equal Even 3 surface of blade that is applied to is formed by coating, and in brush cutter work, blade 3 is in the state that runs at high speed, wearing layer Setting, which can effectively slow down, wears because of high-speed motion power to 3 bring of blade, effectively improves the service life of blade 3, saves enterprise Industry cost, and it is high-efficient to make blade 3 cut weeds；Two sides of point of a knife 5 and the edge of vane body 4 form triangle Shape, stability with higher effectively avoid point of a knife 5 in high speed work so that point of a knife 5 and the bonding strength of vane body 4 are higher The problem of making frangibility under state；Transition face 6 is provided between blade 5 and blade 3,3 place face of blade is put down where being lower than point of a knife 5 Face, the transition face 6 are obliquely installed where point of a knife 5 towards 3 place face of blade, form inclined-plane, the blade 3 on point of a knife 5 is through drawing Integrated molding is stretched, forms a transition face 6 between point of a knife 5 and blade 3, transition face 6 is formed such that 3 place face of blade is lower than 5 place plane of point of a knife；Overall structure is simple, is easy to make, and has saved production cost for enterprise；3 position of blade of the point of a knife 5 Upper surface is arranged in circular arc.

Embodiment 2

Substantially with embodiment 1, it is preferred that as shown in Fig. 2, the blade 3 includes sword head 31, sword body 32 and sword tail 33, On 5 top of point of a knife, sword body 32 is vertical setting the setting of sword head 31 with sword head 31, and sword tail 33 and sword body 32 are circular sliding slopes, knife Sword head 31, sword body 32 and sword tail 33 in sword 3 are formed by stretching integral first in vane body 4, then through polishing smooth, different It needs first to polish in previous brush blade and be mounted on blade, substantially increase production efficiency, and blade 3 Previous blade is effectively prevented because the case where junction intensity is not enough easily broken off caused by welding by drawing and forming, so that whole Intensity it is high, wear-resistant, service life is high, saves production cost for enterprise；The place that sword head 31 is connect with sword body 32 is in circular arc Shape transition, effectively avoids the stress concentration in drawing and forming and blade 3 is broken, and arc-shaped transition is but also sword head 31 Intensity between sword body 32 is higher, ensure that the strong of 3 entirety of blade simultaneously in the case where guaranteeing the sharpness of 3 entirety of blade Degree, service life are higher.

Embodiment 3

Substantially with embodiment 1, the present embodiment further includes location hole 2, and location hole 2 is arranged near mounting hole 1, further The connection for reinforcing vane body 4 and brush cutter, so that stable connection is not susceptible to fall off；The location hole 2 divide for upper hole and Bottom hole, the diameter of upper hole are less than the diameter of bottom hole, so that empty with certain activity when being installed with brush cutter Between, it is conveniently adjusted, upper diameter is less than lower diameter, so that the brush cutter position that top is connect with location hole 2 is not susceptible to shake Dynamic, certain activity space is arranged at lower part, and clever structure reinforces the connection of vane body 4 and brush cutter；2 middle upper aperture of location hole The place connecting with bottom hole is provided with limiting slot 21, and 21 bottom of limiting slot is provided with rubber convex block, and limiting slot 21 is limited to fixed The brush cutter position that position hole 2 connects is not susceptible to relatively move, and rubber convex block has certain elasticity and wearability, rubber convex Certain activity space is formed between block and limiting slot 21, slows down the abrasion to limiting slot 21, improves whole service life；Also Including the cotton that absorbs sound, the sound absorption cotton is arranged in limiting slot 21, effectively slows down the noise generated during the work time.

Embodiment 4

Substantially with embodiment 1, it is preferred that be circumferentially provided with sealing strip along 1 inner wall of mounting hole, blade 3 is under high-speed rotation It is easy for the grass after trimming to be rolled into the normal work that brush cutter is influenced in mounting hole 1 when trimming blade of grass, sealing strip Setting can effectively avoid weeds from entering in mounting hole 1, prevent weeds to be blocked in mounting hole 1, improve service life；It is described Mounting hole 1 is round or polygon, and the processing is simple for circular mounting hole 1, and the connection of mounting hole 1 of polygon is more firm, installation The diversification in hole 1 makes meet the needs of different clients, and use scope is wide.

Example described in the utility model is only that preferred embodiments of the present invention are described, not to this reality It is defined with novel conception and scope, under the premise of not departing from the design concept of the utility model, this field engineering technology people The various changes and improvements that member makes the technical solution of the utility model, should all fall into the protection scope of the utility model.

Claims (10)

1. a kind of bush knife, including vane body (4), the centre of vane body (4) are provided with mounting hole (1), feature It is: further includes point of a knife (5), several points of a knife (5) is in the equidirectional edge for being arranged in vane body (4), the side of point of a knife (5) While being provided with blade (3), two sides of point of a knife (5) and the edge of vane body (4) form triangle, point of a knife (5) and blade (3) it is provided between transition face (6), face is lower than plane where point of a knife (5) where blade (3).

2. a kind of bush knife according to claim 1, it is characterised in that: the blade (3) includes sword head (31), sword body (32) it is arranged on point of a knife (5) top with sword tail (33), sword head (31), sword body (32) is vertical setting with sword head (31), sword tail It (33) is circular sliding slopes with sword body (32).

3. a kind of bush knife according to claim 2, it is characterised in that: the place that sword head (31) is connect with sword body (32) is in Arc-shaped transition.

4. a kind of bush knife according to claim 1, it is characterised in that: further include location hole (2), location hole (2) setting Near mounting hole (1).

5. a kind of bush knife according to claim 4, it is characterised in that: the location hole (2) is divided into upper hole and lower part Hole, the diameter of upper hole are less than the diameter of bottom hole.

6. a kind of bush knife according to claim 5, it is characterised in that: location hole (2) middle upper aperture is connect with bottom hole Place be provided with limiting slot (21), limiting slot (21) bottom is provided with rubber convex block.

7. a kind of bush knife according to claim 6, it is characterised in that: further include sound absorption cotton, the sound absorption cotton setting exists In limiting slot (21).

8. a kind of bush knife according to claim 1, it is characterised in that: along mounting hole (1), inner wall is circumferentially provided with sealing Item.

9. a kind of bush knife according to claim 8, it is characterised in that: the mounting hole (1) is round or polygon.

10. a kind of bush knife according to claim 1, it is characterised in that: the transition face (6) face where point of a knife (5) Face where to blade (3) is obliquely installed.