CN202841902U - Weeder - Google Patents

Abstract

The utility model relates to a weeder comprising an approximately longitudinal assembly which is connected to a handle at the first end, and is connected to a footstep at the second relative end, a finger head which comprises a coiled finger with helical structure and a pushing rod which moves in the helical structure, and a pushing arm, wherein when the tool is vertical to the free end tip of the coiled finger and arranged on the ground, the handle and/or the footstep are/is pressed downwards to enable the coiled finger to rotate into the soil and capture the weeds under the soil while passing through the soil; when the coiled finger and the weeds in the helical structure formed by the coiled finger are pulled out from the soil by pulling the longitudinal assembly upwards, the pushing arm is pushed downwards to push the weeds in the helical structure via the pushing rod.

Description

Weeder

Technical field

The utility model relates to the instrument of removing from the soil for weeds or plant.More precisely, the utility model relates to weeder.

Background technology

At present the invention multiple types of tools to substitute effectively but may poisonous chemicals remove weeds in garden and the lawn.This type of instrument comprises Weeding tool, extirpator, the device that digs up the roots, strand straw articles and weed extractor.Every kind of instrument all has different advantages, and it is usually according to different vegetation types and place character, and for example hardness and compaction are applied to different weeding situations.

Extirpator and the device that digs up the roots are the Weeding tools that weeds are rooted out.They generally include the device that penetrates soil and crawl or remove grass roots.

Some instruments comprise the excavation part, and it is used for excavating downwards near the weeds soil of a side wherein; And blade, its soil that is used for going deep into the weeds opposite side downwards is with the crawl grass roots, and this blade can be pulled out from soil by upwards mentioning instrument subsequently, and weeds can be clipped in excavates between part and the blade, just as in being clipped in claw.

Other instruments are the screw rod pulling type, and the part that wherein is used for excavating soil downwards can be clamped the weeds under the soil, then removes weeds by the pulling instrument.

This specification is with reference to a plurality of documents, and the content of described a plurality of documents is incorporated herein by reference in full.

The utility model content

Particularly, the utility model provides a kind of weeder, and it comprises handgrip; Pedal; The cardinal principle vertical package, described cardinal principle vertical package connects handgrip at first end, and connects pedal in the second-phase opposite end; Pawl head (finger head), described pawl head comprise the coiling pawl (coiled finger) that is arranged to helical structure, and the penetrator ram that moves in helical structure; And ejector arm, described ejector arm is with respect to the vertical package parallel, and is connected with the first end of pawl head at penetrator ram; Wherein, when this instrument when being placed on the ground perpendicular to the mode of movable most advanced and sophisticated (the free end tips) of coiling pawl substantially, press downwards in handgrip or the pedal at least one so that the coiling pawl be rotated down in the soil, and when penetrating soil, it catches weeds under the soil, and wherein when the coiling pawl and be trapped in weeds in the helical structure that the coiling pawl consists of by after upwards spurring vertical package and from soil, pulling out, promote ejector arm downwards, can will catch and dig out weeds by penetrator ram and from helical structure, release.

Better, the described helical structure that described coiling pawl consists of moves with rotation mode in one direction, and moves in the opposite direction and be obstructed.

Better, described penetrator ram comprises the ejection plate that is positioned at its second end, described ejection plate is urged to the below of described helical structure by promoting described ejector arm downwards towards the revolving center extreme direction of described coiling pawl.

Better, described ejector arm is the sleeve pipe that slides around described vertical package.

Better, described pawl head comprises ratchet assembly.

Better, described coiling pawl is by a kind of the making in stainless steel, steel alloy, engineering plastics, aluminium and the titanium.

Better, described coiling pawl has the hardness that is included between 38 to 58 HRCs.

Better, described each pawl all has the thickness between 0.0625 inch to 3/16 inch.

Better, described each pawl all has fin shape profile.

Better, described each pawl is all with approximately 150 ° of coilings, and coiling length be 4 inches or on.

Better, described pawl head comprises three coiling pawls.

Better, described pawl head comprises three coiling pawls, and each pawl has in approximately 0.1 inch and the cross section that approximately changes between 9/16 inch, about 3.75 inches length, per inch is the pitch of 42.67 degree approximately, and about 0.12 inch thickness, and described helical structure has approximately 1 inch internal diameter.

Better, described pawl head comprises three coiling pawls, and each pawl has uiform section substantially, about 3.75 inches length, and per inch is the pitch of 42.67 degree approximately, about 0.12 inch thickness, described helical structure has approximately 1 inch internal diameter.

Better, described uiform section substantially is higher than approximately 0.375 inch.

Better, described uiform section substantially is included in approximately 0.5 inch and approximately between 0.7 inch.

Better, described each pawl all has the length that is included between 2 inches and 4.5 inches.

Better, described each pawl all has the pitch that is included between 54 degree/inch and the 38 degree/inch.

Better, described at least one pawl comprises at least one rib at its described movable tip.

Better, described pawl has outward-dipping movable tip.

Better, the described helical structure that described coiling pawl consists of has the internal diameter of about 1+/-0.25 inch.

Better, described penetrator ram has the passage that is limited between top position of rest and the below position of rest.

The utility model further provides a kind of method of using hand-operated tools that plant is pulled out from the soil, and described instrument comprises substantially vertical package, and it is provided with pedal; The pawl head, described pawl head comprises the coiling pawl that is arranged to helical structure, and the penetrator ram that moves in helical structure; And ejector arm, it is with respect to vertical package and pedal. parallel, and be connected with the first end of pawl head at penetrator ram, and wherein the method comprises: this instrument is placed perpendicular to the common pawl head around the plant that will remove substantially; By following at least a mode, the coiling pawl is rotated down in the soil: i) to press pedal downwards, ii) press vertical package and iii downwards) in the ratchet operation, press counterclockwise and the clockwise direction rotary handle; And pulling vertical package substantially, thereby upwards mention this instrument and pawl is pulled out from soil; And handle ejector arm to unclamp the plant of grubbing out out in the coiling pawl.

By reading hereinafter the non restrictive description to the utility model specific embodiment, and only by means of example and relevant drawings, other purposes of the present utility model, advantage and feature will be clearer.

Description of drawings

In the accompanying drawings:

Fig. 1 is the perspective view according to the instrument of the utility model embodiment on the one hand;

Fig. 2 is the perspective view according to the handgrip of the instrument of the utility model embodiment on the one hand; Wherein, 2a is the front view of handgrip; 2b is the stereogram of handgrip;

Fig. 3 is the exploded view of instrument shown in Figure 1;

Fig. 4 is that wherein 4a is the partial exploded view of pawl head according to the diagram of the pawl head (fingerhead) of the instrument of the utility model embodiment on the one hand, and 4b is the perspective view of pawl head;

Fig. 5 is the perspective view according to the pawl head of the instrument of the utility model embodiment on the one hand;

Fig. 6 is the close-up view according to the pawl of the pawl head of the instrument of the utility model embodiment on the one hand;

Embodiment

The utility model will be done by following limiting examples and be explained in further detail.

As shown in Figure 1, this instrument generally includes handgrip 10, main body 12 and pawl head (finger head) 24.

For example, shown in Fig. 2 b, handgrip 10 can be T shape substantially, so that user's tool using comparatively cosily, and can not hinder user's leg or health.For example, shown in Fig. 2 a, the edge 110 of handgrip 10 and lower surface 112 can be through design to provide the comfortable grip sense to the user.For example, in the main body of handgrip 10, can be provided with hole 120, for when depositing, hanging this instrument.

As clearly shown in Figure 3, main body 12 is substantially the tube assembly between handgrip 10 and pawl head 24.It comprises supervisor 30, pedal 22 and ejector arm 20.Pedal 22 is fixing with respect to supervisor 30, and ejector arm 20 can move with respect to supervisor 30 and pedal 22.

For example, ejector arm 20 is described as musket type sliding sleeve in this article, is positioned at supervisor 30 outside, and it comprises the handle 29 for the user, and is being responsible for 30 ends and the position relative with handle 29, the tongue (tongue) 21 that is connected with pawl head 24.Can there be other configurations in expection.

As clearly shown in Figure 4, pawl head 24 comprises penetrator ram 70, and it can move in main shaft 100, and with the ejector that is positioned at its end (for example being welded on the end of penetrator ram 70), the ejection plate 80 as shown; And the pawl 40 that is coiled into helical structure, it passes through, and for example welding uses bearing 300 to be fixed on the end of main shaft 100.Main shaft 100 supports ratchet assemblies, this ratchet assembly be included in bearing 300 and the pedal 22 that is fixed around main shaft 100 by ratchet ring 90 between Compress Spring 60 and compression ring 50.For example, as shown in figures 1 and 3, this assembly is installed in outer cover 64 back.It will be understood by one of ordinary skill in the art that this assembly can have other configurations.

The helical structure that pawl 40 consists of only moves around penetrator ram 70 with rotation mode in one direction: its rotation in the opposite direction is obstructed.This helical structure is fixed with respect to pedal 22 positions when translation.Ejector arm 20 and ejection plate 80 are with respect to supervisor's 30 translations.

The pawl 40 that is coiled into helical structure can be cut out by steel pipe, for example use laser or cut by punch die or punch press, steel pipe through quench and calcining to have required engineering properties.Perhaps, the pawl 40 that is coiled into helical structure can begin to make up from steel plate, in steel plate, cut out first the shape of each pawl, merge to steel plate in the pipe subsequently and be welded into the net shape of pawl head 24, then pawl is quenched and calcine so that it has required engineering properties.For example, the thickness of initial pipe or plate can be selected between 0.0625 inch and 3/16 inch.

For example, make this instrument all effective in various places, the target hardness of pawl 40 can be between 38 to 58 HRCs.

The pitch of the quantity of pawl 40, shape and size and the helical structure that consists of and/or external diameter and the internal diameter of helical structure can through adjusting to optimize the working face of pawl head, obtain suitable mechanical resistance simultaneously.

What found is, the pawl head comprises three pawls, each pawl have approximately 0.1 inch to the cross section that approximately changes between 9/16 inch, each pawl has approximately the approximately pitch of 42.67 degree of 3.75 inches length and per inch, and about 0.12 inch thickness, and formation has the approximately helical structure of 1 inch internal diameter, like this, can there be Optimal Ratio between the total working face that pawl provides and the spacing between the pawl, in order in the scope of place, effectively pull out ground weeds, and after rooting out, weeds from the helical structure that pawl consists of, effectively release weeds.

Pawl head with the substantially constant cross-section that is higher than approximately 0.375 inch, the vicissitudinous cross section of for example pawl head between 0.5 inch to 0.7 inch, or tool and length are included between 2 inches to 4.5 inches and pitch is spent 54/and inch is available to the pawl head between 38 degree/inch.

Expection can provide the tip of each pawl with rib (rib) 200, is used for fixedly weeds (consulting Fig. 5), namely underground catch weeds and/or dig out weeds after, avoid weeds from the helical structure that pawl 40 consists of, to drop out unintentionally.

In addition, the tip 400 of each pawl 40 can be outward-dipping, namely towards the outer inclination (consulting Fig. 6) of the helical structure that consists of.This feature can make pawl easily penetrate soil, and can unclamp like a cork the weeds that grasp in the helical structure in the ejection process according to the flexibility of pawl.In fact, when the pawl head inserted in the soil, the beveled tip 400 of pawl 40 trended towards tightening up pawl towards the center of helical structure under ground pressure.When pulling out weeds from soil, pawl 40 returns to original position, unclamping the weeds of its crawl, thereby releases weeds like a cork from helical structure.

According to the utility model embodiment on the one hand, a kind of method for removing weeds comprises by the user with handing handgrip 10, instrument is fixed on a certain position, thereby this instrument is placed to vertical above the weeds that will remove substantially, its median claw head 24, be the tip of pawl 40, substantially around the plant that will remove.

Then, the user presses pedal 22 downwards with pin, so that pawl 40 is rotated down to soil.The user need not to carry out any twisting action.The pawl 40 that is coiled into helical structure is less than complete 360 degree rotations, and namely approximately 150 °, to move down, until ejection plate 80 reaches its top of stroke, i.e. about 3 to 4 inches dark positions, this top of stroke specifically depends on the length of pawl 40.Perhaps, when this instrument vertically being fixed in substantially the weeds top that will remove, and when the tip of pawl 40 centers on the weeds that will remove substantially, the user can press handgrip 10 downwards, and usually marking semicircular mode at horizontal plane alternately backward and move forward, thereby but also driving claw 40 rotates in the soil.If necessary, the user can promote handgrip 10 and pedal 22 simultaneously, in order to penetrate like a cork soil.

After penetrating soil, pawl 40 is caught the dark approximately grass roots of 3 to 4 inchs under the soil.Help to increase soil and penetrate dynamics, the user can by in ratchet operation continuously clockwise and be rotated counterclockwise handgrip 10, further coiling pawl 40 is pressed downward in the soil.

Subsequently, the user with clockwise a little the mode of turning tool (less than about 90 degree) spur handgrip 10 upwards mentioning instrument, thereby pawl 40 is upwards extracted soil, and from soil, weed out the rank grass, described weeds comprise root and leaf, can be trapped between the pawl 40 always.When upwards spurring instrument, be obstructed owing to pawl 40 rotates backward, so it can not rotate backward.Will be fast from instrument, remove fritter earth and grass roots, for example, the user can be above wastepaper basket down sliding ejector arm 20, to unclamp the weeds in the coiling pawl 40, so just need not further to clear up.Therefore just need seldom, even do not need to pick up again any chip.By downward promotion ejector arm 20, the user drives penetrator ram 70 and moves down, and drives thus its ejection plate 80 and move down towards the movable tip of pawl 40.For example, shown in Fig. 4 b, ejection plate 80 can comprise, outward extending 3 spiral arms from the helical structure that pawl 40 consists of for example are in order to unclamp weeds so that weeds are released in this stage.According to different places, also can use the ejection plate 80 that adopts other configurations.For example, ejection plate 80 can be bar or plate mobile in the helical structure that pawl 40 consists of, and can be fixed on an end of penetrator ram 70.

In Fig. 3 and embodiment shown in Figure 4, the aisle limit of penetrator ram 70 is up between position of rest and the below position of rest, so that penetrator ram 70 is carried out percussion, and thus ejection plate 80 carried out percussion, thereby can unclamp like a cork weeds.In fact, this restricted access gives the extra kinetic energy that ejector arm is used for impacting position of rest, and bestows extra power to ejection plate 80.

The movement of the configuration of pawl head 24 and pawl 40 helps effectively to penetrate soil and reduces friction, and effectively grasps grass roots and leaf and can not cut grass roots and leaf, also helps effectively to catch root and leaf.Subsequently, root out weeds from the soil after, the user only need activate ejector arm 20, for example the top of wastepaper basket activates ejector arm 20, weeds can be removed from this instrument.Like this, as mentioned above, just need not the place around the position that weeds out the rank grass is additionally cleared up.

Instrument of the present utility model can root out weeds thus like a cork, and after rooting out it is removed from ground.Because the internal diameter of the helical structure that consists of of pawl 40 is 1+/-0.25 inch approximately, therefore instrument of the present utility model has accuracy and can minimize soil disturbance,, reduces farming that is.

For example, instrument of the present utility model need not to bend over or goes down on one's kness just can penetrate effectively, fast and like a cork soil, crawl grass roots and it is pulled out, to allow to excavate dandelion and weeds.Its ejector can be after weeding out the rank grass, and easily effectively releases weeds and it is processed.The user only need carry out that simple inch depresses, the action of pull-up inch, and the weeds that pawl will automatic capturing grows are also agilely pulled out it from soil.

This instrument has approximately 30 inches or above height, and for example handgrip is 10 reducible 36 inches high, when tool using, can meet very much the human performance requirement, and can prevent back stress like this.This height can further adjust, for example from approximately 32 inches be adjusted to approximately 40 inches.

For example, pawl 40 can be by a kind of the making in stainless steel, steel alloy, engineering plastics, aluminium and the titanium.It can have fin shape (fin-shaped) profile, is used for improving the soil penetration level.But owing to digging up the roots and pulling out in the step, root or the Ye Buying of weeds cut, so these pawls 40 should not have sharp knife-edge.Shown in pawl with approximately 150 ° of coilings, and the development length of coiling is 4 inches or above (development length of described coiling refers to: if the pawl of coiling is pulled length after straight), so that grass and leaf slide thereon and are trapped between it, thereby in the scope of place, like a cork grass is rooted out, and the top that can only not weed out the rank grass.

This instrument can reach and be about 3 to 4 inches the degree of depth, the degree of depth of namely enough touching grass roots.It is easy to use, and is easy to carry.This instrument is the friendly instrument that really meets ergonomics, and its weight is lighter, for example is usually less than 30 pounds, and is easy to use, and can not cause larger pressure to user's back and four limbs.This instrument only need make with the hands or only use a hand to apply minimum strength and just can use, the user can pull out 200 grass in one day, pull out so average of every grass and need approximately 5 seconds, if continue to use 10 days by this frequency, instrument so of the present utility model can be pulled out approximately 2000 grass in 1 year.

[0069] although the utility model is described above by means of wherein specific embodiment, it can be without prejudice to making amendment according to the basis of the described essence of the present utility model of claims of the present utility model and guidance.

Claims (21)

1. weeder, described weeder comprises:

Handgrip;

Pedal;

The cardinal principle vertical package, it connects described handgrip at first end, and connects described pedal in the second-phase opposite end;

The pawl head, it comprises the coiling pawl that is arranged to helical structure, and the penetrator ram that moves in described helical structure;

And

Ejector arm, it is with respect to described vertical package parallel, and is connected at the first end of described penetrator ram with described pawl head;

Wherein, when described instrument is placed on the ground perpendicular to the movable tip of described coiling pawl substantially, press at least one in described handgrip or the described pedal downwards, so that described coiling pawl is rotated down in the soil, and when penetrating soil, it catches weeds under the soil, and wherein when described coiling pawl and be trapped in weeds in the described helical structure that described coiling pawl consists of by after upwards spurring described vertical package and from soil, pulling out, promote described ejector arm downwards, can will catch and dig out weeds by described penetrator ram and from described helical structure, release.

2. weeder according to claim 1, the described helical structure that wherein said coiling pawl consists of moves with rotation mode in one direction, and mobile being obstructed in the opposite direction.

3. weeder according to claim 1, wherein said penetrator ram comprises the ejection plate that is positioned at its second end, described ejection plate is urged to the below of described helical structure by promoting described ejector arm downwards towards the revolving center extreme direction of described coiling pawl.

4. weeder according to claim 1, wherein said ejector arm are the sleeve pipes that slides around described vertical package.

5. weeder according to claim 1, wherein said pawl head comprises ratchet assembly.

6. weeder according to claim 1, wherein said coiling pawl is by a kind of the making in stainless steel, steel alloy, engineering plastics, aluminium and the titanium.

7. weeder according to claim 1, wherein said coiling pawl has the hardness that is included between 38 to 58 HRCs.

8. weeder according to claim 1, wherein each pawl all has the thickness between 0.0625 inch to 3/16 inch.

9. weeder according to claim 1, wherein each pawl all has fin shape profile.

10. weeder according to claim 1, wherein each pawl is all with approximately 150 ° of coilings, and coiling length be 4 inches or on.

11. weeder according to claim 1, wherein said pawl head comprises three coiling pawls.

12. weeder according to claim 1, wherein said pawl head comprises three coiling pawls, each pawl has in approximately 0.1 inch and the cross section that approximately changes between 9/16 inch, about 3.75 inches length, per inch is the pitch of 42.67 degree approximately, and about 0.12 inch thickness, described helical structure has approximately 1 inch internal diameter.

13. weeder according to claim 1, wherein said pawl head comprises three coiling pawls, and each pawl has uiform section substantially, about 3.75 inches length, per inch is the pitch of 42.67 degree approximately, about 0.12 inch thickness, and described helical structure has approximately 1 inch internal diameter.

14. weeder according to claim 13, wherein said uiform section substantially are higher than approximately 0.375 inch.

15. weeder according to claim 13, wherein said uiform section substantially are included in approximately 0.5 inch and approximately between 0.7 inch.

16. weeder according to claim 1, wherein each pawl all has the length that is included between 2 inches and 4.5 inches.

17. weeder according to claim 1, wherein each pawl all has the pitch that is included between 54 degree/inch and the 38 degree/inch.

18. weeder according to claim 1, wherein at least one pawl comprises at least one rib at its described movable tip.

19. weeder according to claim 1, wherein said pawl have outward-dipping movable tip.

20. weeder according to claim 1, the described helical structure that wherein said coiling pawl consists of have the internal diameter of about 1+/-0.25 inch.

21. weeder according to claim 1, wherein said penetrator ram have the passage that is limited between top position of rest and the below position of rest.

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